• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An embodiment according to the present invention provides a soundproof material for a compressor exhibiting excellent soundproofing performance, buildability and workability. The soundproof material for the compressor comprises an acoustic absorbent and sound insulating sheet; and two non-woven sheets exhibiting flame resistance which cover each of the two surfaces of the sound absorbing and sound insulating sheet, and the peripheral parts of which are glued to each other.
    公开号:BE1022557B1
    申请号:E2014/0748
    申请日:2014-10-07
    公开日:2016-06-02
    发明作者:Aoki Mototsugu；Ueda Hiroaki；Imatoku Kenji；Ono Keisuke
    申请人:Parker Corporation；
    IPC主号:
    专利说明:

    "Sound-insulating material for compressor and method of manufacturing the same"
    Technical area
    The present invention relates to a sound-insulating material for a compressor and a method of manufacturing the same.
    Context of the invention
    In the related art, various sound insensitive means are provided in a compressor housed in an outdoor machine of an air conditioner, for example, to prevent leakage of an operating sound generated by this compressor to the outside. Patent document 1 (JP-A-2011-46182), for example, has a sound-insulating material in which an acoustic insulating sheet made of rubber or the like, a felt-like acoustic absorbent sheet, and an anti-fouling sheet consisting of an aluminum film or the like are laminated in that order. Such a soundproof material avoids sparking and projection or ignition of the oil from a compressor in use, and avoids the penetration of oil into an acoustic absorbent material, by disposing the antifouling sheet made of a film of aluminum on the compressor side. Summary of the invention
    However, in a case where the aluminum film is disposed on the compressor side, the sound absorption performance in the sound absorbing material is disturbed. That is, since the aluminum film is an impermeable material, the operating sound of the compressor is not absorbed, and the sound absorption performance in the felt of the inner layer is not sufficiently obtained. In addition, since the aluminum film itself is a hard material, the moldability at the time of manufacture of the acoustic absorbent material or the workability when attaching the aluminum film to the compressor does not matter. is not ideal. In addition, since the aluminum film is a relatively hard material, the vibration (sound) from the compressor can be easily transmitted. Further, in a case where the acoustic insulating sheet made of rubber or the like is disposed on an outermost layer, the sound reflected by a metal plate in the outer machine can escape outside the machine exterior. The invention is made in consideration of these circumstances and an object thereof is to provide a sound-insulating material for a compressor having excellent soundproofing performance, manufacturability and workability, and a method of manufacturing the same. this.
    To solve the above problem, the soundproof material for a compressor according to the present invention comprises: an acoustic acoustic insulating absorbent sheet formed of an acoustic absorbing material having a sound absorbing property and an acoustic insulating material having a soundproofing property; and two nonwoven sheets having a flame resistance which cover each of the two surfaces of the acoustic acoustic and acoustic insulating sheet, and whose peripheral parts are glued to each other.
    In addition, the method of manufacturing a soundproof material for a compressor according to the present invention comprises: a step of preparing two nonwoven sheets having a flame resistance which contain an adhesive which is adhered at least to the peripheral parts of the heating, and an acoustic acoustic insulating absorbent sheet formed of an acoustic absorbing material having a sound absorbing property and an acoustic insulating material having a sound-absorbing property; a lamination step of laminating one of the non-woven sheets, the acoustic and acoustic insulating absorbent sheet, and the other of the nonwoven sheets in that order; and a step of heating and pressing the peripheral portions of the nonwoven sheets against each other.
    In the soundproof material for a compressor and the method of manufacturing it according to the present invention, it is possible to obtain excellent soundproofing performance, manufacturability and maneuverability.
    Brief description of the drawings
    Fig. 1 is an appearance diagram showing an embodiment of a sound-insulating material for a compressor according to the present invention.
    Fig. 2 is a cross-sectional view taken along line 11-11 of Fig. 1.
    Figure 3 is an enlarged view of a portion III of Figure 2.
    Fig. 4 is a cross-sectional plan view showing a sound-insulating material for a compressor in a state where it is installed in a compressor.
    Fig. 5 is an enlarged view of a portion of a sound-insulating material for a compressor in a modified embodiment.
    Fig. 6 is a cross-sectional view showing a sample of a sound-insulating material for a compressor in an example 1.
    Fig. 7 is a cross-sectional view showing a sample of a sound-insulating material for a compressor in an example 2.
    Fig. 8 is a cross-sectional view showing a sample of a sound-insulating material for a compressor in a comparative example 1.
    Fig. 9 is a graph showing an evaluated result of a measurement of an absorption coefficient of its reverberation.
    Fig. 10 is a longitudinal sectional view for illustrating a sample (sound-insensitive material) of a sound-insulating material installed in a reverberation box and a measuring device.
    Fig. 11 is a graph showing an evaluated result of a measurement of a transmission loss.
    Description of the embodiments
    An embodiment of a sound-insulating material for a compressor and a method of manufacturing the same according to the present invention will be described with reference to the drawings.
    Fig. 1 is an appearance diagram showing an embodiment of a sound-insulating material for a compressor according to the present invention.
    Fig. 2 is a cross-sectional view taken along the line 11-11 of Fig. 1.
    Figure 3 is an enlarged view of a portion III of Figure 2.
    FIG. 4 is a cross-sectional plan view showing a sound-insulating material for a compressor 1 in a state where it is installed in a compressor 2.
    The soundproof material for a compressor 1 of the embodiment is a soundproof material attached to a compressor of an outdoor machine for air conditioning. The soundproof material for a compressor 1 (hereinafter simply referred to as "soundproof material 1") comprises an acoustical and acoustic insulating absorbent sheet 10, and two nonwoven sheets 15 which cover each of the two surfaces of the acoustic acoustic and acoustic insulating sheet 10 .
    Acoustic acoustic and acoustic insulating sheet 10 is made of an acoustic absorbing material 11 and an acoustic insulating material 14.
    Acoustic absorbing material 11 is a sheet having a sound absorbing property such as a fiber assembly such as felt having natural fibers or chemical fibers (synthetic fibers, regenerated fibers, or chemical fibers having low melting point) as a main component, glass fiber or glass fiber felt formed by a needling treatment, or a laminate material of this felt, or a polyurethane foam (comprising a polyurethane foam) flexible and hard polyurethane foam) including open cells. The acoustic absorbing material 11 is preferably a resinous felt having a flame resistance. As shown in Fig. 2 and Fig. 3, the acoustic absorbing material 11 is provided as three layers or partially provided as two layers. A thickness of the acoustic absorbing material 11 is about 1 mm to 40 mm. From a sound absorption performance point of view, it is preferable that a thickness of an acoustic absorbing material 11a disposed on the side of the compressor 2 when the soundproof material 1 is installed on the compressor 2 is greater than that of acoustic absorbing materials 11b and 11c arranged outside. In this case, it is preferable that the thicknesses of the acoustic absorbing materials 11b and 11c and the acoustic absorbing material 11a are different in a ratio of about 1: 2 to 1: 5.
    A length in a circumferential direction of a surface disposed therein when the soundproof material 1 is installed in the compressor 2 is less than that of the surface disposed outside. Therefore, the acoustic absorbing material 11a is made up of a plurality of sheets arranged with spaces 12 provided at predetermined intervals to cope with the difference in length in the circumferential direction.
    The acoustic insulating material 14 is a sheet having a sound-absorbing property such as an elastomer made of rubber or a thermoplastic resin. The acoustic insulating material 14 is preferably polyvinyl chloride. The acoustic insulating material 14 is provided as two layers, and each of them is disposed between each acoustic absorbent material 11. A thickness of the acoustic insulating material 14 is about 1 mm to 6 mm.
    The nonwoven sheet 15 consists of a nonwoven fabric having moderate permeability so as not to negatively affect the sound absorption property of the acoustic absorbing material 11 which is bonded to this nonwoven sheet 15. The nonwoven sheet 15 is made of polyester fibers, polyester fibers having a low melting point, polypropylene fibers, polyethylene fibers, polyamide fibers, acrylic fibers, urethane fibers, polyvinyl chloride fibers, fiberglass or the like.
    This nonwoven sheet 15 exhibits flame resistance. The nonwoven sheet 15 may exhibit the desired flame resistance by the application and impregnation of an organic flame-resistant material (brominated compound, phosphorus compound, or chlorinated compound), an inorganic material resistant to flame (antimony compound, metal hydroxide), and a flame resistant material disclosed in JP-A-2006-83505. The flame resistance is obtained, for example, by the application and impregnation of a resorcinol thermosetting resin composed of monovalent and polyvalent phenol to effect thermosetting. In addition, the flame resistance can also be provided by flame resistant fibers.
    The nonwoven sheet 15 contains a thermosetting resin such as a resorcinol resin. Therefore, the nonwoven sheet is molded into a desired shape by hot compression molding. The nonwoven sheet 15 further has an oil repellent property and a water-repellent property. The oil-repellent property and the water-repellent property are obtained by further impregnating the non-woven sheet of fluorine-based water and an oil-repellent agent. In addition, with respect to the nonwoven sheet 15, at least the peripheral portions 16 of the nonwoven sheet 15 are adhered to each other by the thermosetting resin described above. In a case where adhesion is insufficient in the thermosetting resin due to manufacturing conditions or the like, an adhesive such as a hot melt adhesive is used. The adhesive consists of polyethylene, polypropylene, polyolefin resin, polyvinyl chloride, polyurethane, polyester, polyamide, phenolic resin, epoxy resin, or the like, and a solvent containing any one of these is applied and impregnates the nonwoven fabric.
    Since the nonwoven sheet 15 overlies the acoustic acoustic insulating absorbent sheet 10 and the peripheral portions 16 of the nonwoven sheet 15 are heated and pressed, a dimension thereof is greater than that of the acoustic absorbent sheet and Acoustic insulation 10. That is, the acoustical and acoustic insulating absorbent sheet 10 is smaller in size than the peripheral portions 16 of the nonwoven sheet 15. In addition, a weight per surface of the nonwoven sheet 15 is about 50 g / m2 to 200 g / m2. *
    The soundproof material 1 consisting of each of the elements described above is provided as an integrated body as will be described later, in a state where the two surfaces of the acoustic acoustic and acoustic insulating sheet 10 are covered by the nonwoven sheet 15 In the composition with the sound absorbing material 11 such as felt, the soundproofing material 1 described above is preferably capable of meeting a UL94V-0 flame resistance standard which is standardized by Underwriters Laboratories Inc. or Federal Motor Vehicle Safety Standard FMVSS302.
    In addition, wires and pipes such as a discharge pipe, a suction pipe, or an electric wire are attached to the compressor 2 in which the soundproof material 1 is used. Consequently, the soundproof material 1 comprises a penetration hole 18 and a recess 19 for the passage of the wires and pipes. The heated and pressed peripheral portions 16 are also provided on the penetration hole 18 and the recess 19. (The penetration hole 18 and the recess 19 are provided on the peripheral part 16).
    Next, a procedure for manufacturing the soundproof material 1 will be described.
    The nonwoven sheet 15 and the acoustic acoustic and insulating absorbent sheet 10 are subjected to hot compression molding in a laminated state. At this time, the peripheral portions 16 of the nonwoven sheet 15 are heated and pressed to adhere to each other. That is, the acoustic acoustic insulating absorbent sheet 10 is disposed on the inner side with respect to the heated and pressed peripheral portions 16, and the sheets of the acoustic acoustic and acoustic insulating sheet 10 are arranged in such a way that not be fixed to each other. Therefore, the acoustic acoustic and acoustic insulating sheet 10 is housed in the nonwoven sheet 15 having a hermetically sealed bag, and the soundproof material 1 is directly formed as an integrated body.
    In addition, the soundproof material 1 is pressed to present a desired shape. In detail, the outermost layer on the side where the acoustic absorbing material 11a is disposed is formed to follow a surface shape of the nonwoven sheet 15 formed with the acoustic absorbing material 11a and the space 12 ( acoustic insulating material 14). At this time, the nonwoven sheet 15 and the sound absorbing material 11a or the acoustic insulating material 14 are glued to each other in many cases, but are not necessarily glued to each other.
    The penetration hole 18 and the recess 19 are formed by punching using a Thomson die after performing hot compression molding, for example. In addition, in a case where the manufacturing is carried out using a simultaneous molding and cutting die that allows compression molding and cutting to be performed in a single step, the penetration hole 18 and the recess 19 may also be be formed at the time of hot compression molding. In addition, the peripheral portions 16 of the penetration hole 18 and the recess 19 are also heated and pressed together with the peripheral portions 16 on the outer periphery of the nonwoven sheet 15.
    As a specific example, the soundproof material 1 can be manufactured extremely easily by the following method. First, a molding template is disposed on a lower press platen of a press. A heater is built into this press. The molding template has a shape corresponding to the shape of the peripheral portions 16 and the thickness (height) of the soundproof material 1. In addition, the molding template also has a shape corresponding to the shape or thickness (height ) of the space 12. The molding template can be formed with a plurality of elements or with a single element. At this time, the molding template is heated to a temperature at which the adhesive that impregnates the nonwoven sheet 15 may be adhered thereto, for example, at a temperature of about 200 ° C. Resorcinol base is hardened. The nonwoven sheet 15, the acoustic acoustic and acoustic insulating sheet 10 and the nonwoven sheet 15 are laminated in this order on this molding template (bottom press plate). In a case where an adhesive such as a hot melt adhesive is applied to the nonwoven sheet 15, the applied surface is arranged to be coated on the side of the acoustic acoustic and acoustic insulating sheet 10. The nonwoven sheet 15 is arranged so that the surface disposed on the side of the compressor 2 is fixed as the lower surface, when attached to the compressor 2. At this time, the peripheral portion 16 intended to be a pressing part on the nonwoven sheet 15 is arranged on the molding template. Acoustic acoustic and acoustic insulating sheet 10 is not disposed on the molding template corresponding to the peripheral portion 16. In addition, the molding template is also disposed at a position where the gap 12 is formed.
    Next, an upper press platen of the press descends the upper portion, and the nonwoven sheet is pressed with a desired pressure by the upper press platen and the molding template. Therefore, the heat is transmitted to the nonwoven sheet from the upper and lower press trays and the molding template, and the thermosetting resins impregnated are cured (with the hot melt adhesive), and, therefore, the sheets nonwoven 15 are glued to each other. At this time, the temperatures of the upper and lower press platens are about 200 ° C, respectively, and the desired heating and pressure time is about 50 seconds.
    In addition, in the space 12, the nonwoven sheet 15 is shaped to follow the shape of the surface formed by the acoustic absorbing material 11a and the space 12 (acoustic insulating material 14). At this time, the nonwoven sheet 15 and the acoustic absorbent materials 11a and 11c are wholly or partially in contact with each other and are adhered to each other by adjusting with the height of the molding template or the like. After that, the penetration hole 18 and the recess 19 are made.
    In the soundproof material 1 made as described above, the sheets 10 and 15 are formed integrally by hot compression molding. Therefore, it is not necessary to manually wind an aluminum film or glass cloth around the felt, as in a case of the soundproof material of the related art using aluminum foil or glass cloth made of glass fibers. Therefore, it is possible to improve the manufacturability of the soundproof material 1. Moreover, its manufacture is easy, even in a case where the position or the shape of the penetration hole 18 is not simple. In addition, in a case of performing hot compression molding using the molding template as described above, it is possible to easily manufacture the soundproof material 1 corresponding to the shape of the compressor 2 by changing the shape or shape of the compressor. layout of the molding template.
    In addition, it is possible to provide the necessary flame resistance, by achieving the desired flame resistance in the nonwoven sheet itself, and by arranging the composition with the flame resistance of the acoustic absorbing material. within the nonwoven sheet 15. Therefore, it is possible to prevent ignition of the oil of the compressor 2 by the entire sound-insulating material even when the outermost layer coming into contact with the the compressor 2 is a nonwoven fabric. In addition, since the peripheral portions 16 of the nonwoven sheet 15 are reliably bonded together, it is also possible to prevent erosion of the interior acoustic absorbing material 11 from occurring due to oil or rain water, or an ignition thereof, and it is possible to avoid the degradation (to maintain the durability) of the soundproof material 1 itself and to maintain the soundproofing performance. In addition, in a case where the nonwoven sheet has an oil repellent property and a water-repellent property, it is possible to better achieve the effects described above.
    In addition, since the soundproof material 1 is configured only with the materials having flexibility, the soundproof material 1 is easily attached to the compressor 2, and the workability can also be improved. In addition, since the surface coming into contact with the compressor 2 is the nonwoven sheet 15 having a flexibility, it is also possible to suppress a vibration (sound) due to the contact between the compressor 2 and the soundproof material 1.
    The nonwoven sheet 15 (peripheral portions 16) is heated and pressed to be cured, but the acoustic acoustic and acoustic insulating sheet 10 can maintain flexibility without being cured. Therefore, the maneuverability at the instant of attachment of the soundproof material 1 to the compressor 2 is not degraded. In addition, since the sheets of acoustic acoustic and acoustic insulating sheet 10 are not glued (affixed) to one another, the sheets of acoustic acoustic and acoustic insulating sheet 10 can be moved to each other. the other according to the length of each layer in the circumferential direction, during the winding around the compressor 2. Therefore, it is possible to further improve the handling during the winding around the compressor 2.
    Acoustic acoustic and acoustic insulating sheet 10 shown in FIGS. 1 to 3 may be configured only with the layer of acoustic absorbing material 11, or the acoustic absorbing material 11 may be configured with two layers and the acoustic insulating material 14 may be configured with a single layer, as shown in FIG. 5. In addition, with respect to the acoustic acoustic and acoustic insulating sheet 10, the acoustic absorbent material 11 can be configured with four or more layers and the acoustic insulating material 14 can be configured with three or more layers depending on the number of layers of sound absorbing material 11.
    In addition, the shape, thickness and number of layers of the nonwoven sheet 15 and acoustic acoustic and sound absorbing sheet 10, and the shape, position and number of penetration holes 18 or recesses 19 are determined according to the form or the soundproofing performance of the compressor 2 to which the soundproof material 1 is attached. Thus, there is no limitation for the soundproof material 1 described in the embodiment.
    In addition, to prevent ignition from the compressor oil 2 in use, an aluminum foil may be attached to at least a portion of the nonwoven sheet 15 disposed on the side of the compressor 2 Therefore, it is possible to provide the soundproof material 1 which can even satisfy an improved flame resistance property. As a method of fixing the aluminum foil, a method of fixing the aluminum foil with an adhesive such as a seal after the manufacture of the soundproof material 1 at the steps described above, or a lamination process aluminum foil with polyethylene and performing the thermal bonding thereof to the soundproof material 1 at the time of hot compression molding, may be used.
    Next, obtaining the improvement of the soundproofing performance and the weight reduction of the soundproof material 1 of the embodiment will be described with reference to examples. The present invention is not limited to the examples presented below.
    Example 1
    As shown in FIG. 6, at the time of installation, a nonwoven sheet 25a, an acoustic absorbent material 21a, an acoustic insulating material 24, an acoustic absorbing material 21b and a nonwoven sheet 25b are laminated in this order to from one side of a compressor, and a sample of sound-insulating material is made. The nonwoven sheets 25a and 25b are made of polyester and are impregnated with a thermosetting resin. Acoustic absorbent materials 21a and 21b are resinous felt. The acoustic insulating material 24 is made of polyvinyl chloride. A thickness and a weight per area of each sheet are set as shown in Table 1.
    Example 2
    As shown in FIG. 7, at the time of installation, a nonwoven sheet 35a, an acoustic absorbent material 31a, an acoustic insulating material 34a, an acoustic absorbent material 31b, an acoustic insulating material 34b, an acoustic absorbing material 31c and a nonwoven sheet 35b are laminated in that order from one side of a compressor, and a soundproof material 30 is made. Each sheet is formed using the same materials as in Example 1. A thickness and a weight per area of each sheet are set as shown in Table 1.
    Comparative Example 1
    As shown in FIG. 8, at the time of installation, an aluminum foil 42, an acoustic absorbing material 41a, an acoustic insulating material 44a, an acoustic absorbing material 41b and an acoustic insulating material 44b are laminated in this order. from one side of a compressor, and a soundproof material 40 is manufactured. The acoustic absorbent materials 41a and 41b are made of acrylic fibers, polyester fibers, and polyester fibers having a low melting point, and the fibers that are formed as a sheet by the needling treatment are used. In addition, the acoustic insulating materials 44a and 44b are formed using the same materials as in Example 1. For the aluminum foil, an aluminum film having a thickness of 50 μm is used. A thickness and a weight per area of each sheet are set as shown in Table 1.
    The surface weight ratios of Examples 1 and 2 and Comparative Example 1 are shown in Table 1. It is possible to obtain the weight reduction of the soundproofing materials 20 and 30 in the examples which are lighter than the soundproof material 40 in Comparative Example 1 of 30% or more.
    In addition, in order to evaluate the sound absorption performance in Examples 1 and 2 and Comparative Example 1, an absorption coefficient of the reverberant sound (absorption coefficient of random incident sound) is measured on the basis of from JIS A 1409 as a Japanese industry standard. A volume of a reverberant room is set at 9 m3, a sample size of each sound absorbing material is set at 1,000 mm x 1,000 mm, and PULSE manufactured by Bruel and Kjaer is used as a measuring device. In addition, an incident surface is attached as a surface (non-surface area on the compressor side) intended to be the outer side with respect to the compressor when the compressor is installed. Fig. 9 is a graph showing an evaluated result of the measurement of the absorption coefficient of the reverberated sound.
    Since, in the soundproof material 40 in Comparative Example 1, the outermost surface intended to be the outer side with respect to the compressor is acoustic insulating material 44b, it turns out that there is virtually no sound absorption effect. On the other hand, since in the soundproofing materials 20 and 30 in Examples 1 and 2, the nonwoven sheets 25b and 35b having a permeability are also disposed on the outermost layer intended to be the outer side with respect to In the compressor and the acoustic absorbing materials 21b and 31c are disposed on the inside thereof, it is found that the sound absorption performance is obtained, compared to the soundproof material 40 in Comparative Example 1. , it is possible even to obtain the soundproofing of the noise that has passed through the soundproof material and which has been reflected by a metal plate in the external machine, without the noise escaping outside the outside machine . In addition, even in a case where interference with the pipe and wires attached to the compressor or hard elements such as the metal plate adjacent to the compressor occurs due to vibration when the outdoor machine is turned on, the Vibration sound generated due to the interference is suppressed, since the material itself has flexibility. Moreover, even in a case where the same measurement is made by fixing the bearing surface as the surface to be the inner surface with respect to the compressor when the compressor is installed, the soundproof materials 20 and 30 in Examples 1 and 2 have the same soundproofing performance effect as described above, compared to Comparative Example 1.
    In addition, in order to evaluate the soundproofing performance of Examples 1 and 2 and Comparative Example 1, the transmission loss simply by using a reverberant box is measured. Figure 10 is a longitudinal sectional view for illustrating a sample 52 (soundproof materials 20, 30 and 40) of a soundproof material installed in a reverberant box 51 and the measuring device. An opening on an upper part of the reverberant box 51 is covered with a soundproof material 52 supported by a support frame 55. A volume of a semi-anechoic room in which the reverberant box 51 is installed is set at 480 m3. In addition, a loudspeaker 53 is installed in a lower part in the reverberation box 51, and a microphone 54 is installed outside the reverberation box 51 and the upper part of the loudspeaker 53. Sound incidence is set to be a surface on the inside of the compressor when the compressor is installed. Fig. 11 is a graph showing an evaluated result of the measurement of the transmission loss.
    With the soundproof material 20 in Example 1, the soundproofing performance is improved compared to the soundproof material 40 in Comparative Example 1, particularly at a low frequency of 315 Hz to 1.25 kHz. With the soundproof material 30 in Example 2, the soundproofing performance is improved compared to the soundproof material 40 in Comparative Example 1, particularly at a high frequency of 800 Hz to 2.5 kHz.
    As can be seen from FIG. 9 and FIG. 11, it is possible to make light insulating materials 20 and 30 in examples 1 and 2 which are lighter than soundproof material 40 in comparative example 1 of FIG. 30% or more and improve the soundproofing performance of these at the same time.
    权利要求:
    Claims (14)
    [1]
    A sound-insulating material (1) for a compressor (2) comprising: an acoustic acoustic insulating absorbent sheet (10) formed of an acoustic absorbing material (11) having a sound-absorbing property and an acoustic insulating material (14) having a soundproofing property; and two nonwoven sheets (15) having a flame resistance which cover each of the two surfaces of the acoustic acoustic and acoustic insulating sheet (10), and whose peripheral parts (16) are glued to each other.
    [2]
    Sound-insulating material (1) for a compressor (2) according to claim 1, wherein the acoustic acoustic insulating absorbent sheet (10) is formed of a plurality of layers of acoustic absorbing material (11) and an acoustic insulating material (14) laminated so as not to be fixed to the others, the acoustic absorbing material (11) being a sheet having a sound absorption property and the acoustic insulating material (14) being a sheet having a property soundproofing.
    [3]
    Soundproof material (1) for a compressor (2) according to any one of claims 1 or 2, wherein the acoustic absorbing material (11) and the acoustic insulating material (14) are alternately arranged in a thickness direction. sound-insensitive material (1).
    [4]
    Sound-insulating material (1) for a compressor (2) according to any one of claims 1 to 3, wherein the acoustic acoustic insulating absorbent sheet (10) is formed of five sheets of acoustic absorbing material (11a), acoustic insulating material (14), acoustic absorbing material (11b), sound insulating material (14), and acoustic absorbing material (11c) laminated in this order in a thickness direction of the sound-insensitive material (1).
    [5]
    Sound-insulating material (1) for a compressor (2) according to any one of claims 1 to 4, wherein the acoustic acoustic insulating absorbent sheet (10) is formed of three sheets of sound-absorbing material (11), acoustic insulating material (14) and acoustic absorbing material (11) laminated in this order in a thickness direction of the sound-insensitive material (1).
    [6]
    Sound-insulating material (1) for a compressor (2) according to any one of claims 1 to 5, further comprising a penetration hole (18) and a recess (19) for a passage of wires and pipes, the penetration hole (18) and the recess (19) having a peripheral portion in which the nonwoven sheets (15) adhere to each other.
    [7]
    Sound-insulating material (1) for a compressor (2) according to any one of claims 1 to 6, wherein the acoustic absorbing material (11) is provided as two or more layers, and the acoustic absorbing material (11) ) disposed on one side of a compressor (2) when the soundproof material (1) is installed in the compressor (2) consists of a plurality of acoustic absorbing material (11) arranged with spaces (12) at predetermined intervals.
    [8]
    Sound-insulating material (1) for a compressor (2) according to any one of claims 1 to 7, wherein the acoustic absorbing material (11) is made of felt and the acoustic insulating material (14) is formed of a polyvinyl chloride sheet.
    [9]
    The sound-insulating material (1) for a compressor (2) according to any one of claims 1 to 8, further comprising an aluminum foil attached to at least a portion of the nonwoven sheets (15) disposed on the side of the compressor (2).
    [10]
    A sound-insulating material (1) for a compressor (2) comprising: an acoustical and acoustic insulating absorbent sheet (10) formed of acoustic absorbing material (11) having a sound-absorbing property; and two nonwoven sheets (15) having a flame resistance which cover each of the two surfaces of the acoustic acoustic and acoustic insulating sheet (10), and whose peripheral parts (16) are glued to each other.
    [11]
    Sound-insulating material (1) for a compressor (2) according to claim 10, wherein the acoustic absorbing material (11) is formed of felt.
    [12]
    A method for producing a sound-insulating material (1) for a compressor (2), the method comprising: a step of preparing two non-woven sheets (15) having flame resistance which contain an adhesive which is adhered to the less to the peripheral portions (16) due to heating, and an acoustic acoustic insulating absorbent sheet (10) formed of an acoustic absorbing material (11) having a sound-absorbing property and an acoustic insulating material (14) having a sound-absorbing property, the acoustical and acoustic insulating absorbent sheet (10) having a smaller outer dimension than an inner dimension of the peripheral portions (16) of the nonwoven sheets (15); a lamination step of laminating one of the two nonwoven sheets (15), the acoustic acoustic and insulating absorbent sheet (10), and the other of the nonwoven sheets (15) in that order; and a step of heating and pressing the peripheral portions (16) of the nonwoven sheets (15) against each other.
    [13]
    A method of manufacturing a sound-insulating material (1) for a compressor (2) according to claim 12, the method further comprising: a step of disposing a molding template which has a shape corresponding to a shape of the parts peripherals (15) of the nonwoven sheets (16) and which is heated to a temperature of adhesion of the adhesive on a lower press platen of a press; and a step of disposing the nonwoven sheets (15) and acoustic acoustic insulating absorbent sheet (10) laminated in the laminating step, so that the peripheral portions (16) of the nonwoven sheets (15) are arranged on the molding template, wherein the heating and pressing step is a step in which the peripheral portions (16) of the nonwoven sheets (15) are heated and pressed against each other with a desired pressure by an upper press platen of the press and the molding jig.
    [14]
    A method of manufacturing a sound-insulating material (1) for a compressor (2) according to any one of claims 12 or 13, the method further comprising a step of forming a penetration hole (18) and a recess ( 19) for a passage of wires and pipes, the penetration hole (18) and the recess (19) having a peripheral portion in which the nonwoven sheets (15) adhere to each other, the penetration (18) and the recess (19) being formed by punching after or at the same time as the heating and pressure step.
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    同族专利:
    公开号 | 公开日
    CN104553214B|2019-05-03|
    CN104553214A|2015-04-29|
    JP2015075038A|2015-04-20|
    JP6372989B2|2018-08-15|
    BE1022557A1|2016-06-02|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2013212053A|JP6372989B2|2013-10-09|2013-10-09|Soundproof material for compressor and method for producing the same|
    JP2013212053|2013-10-09|
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