• 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:
    FLUID COUPLING, METHOD FOR PROVIDING ELECTRICAL CONNECTION AND FLUID CONNECTOR SOCKET A cutting clamp on an electrically conductive hose has at least one end flap (14, 16) shaped to provide a cutting edge to penetrate the layer (s) ) internal (42) of a hose? multi-layer fluid conductor (40), when stamping on the fluid connector (18), and the hose being installed in the fluid connector, forcing the hose against the connector. The cutting action exerted by the cutting clamp provides an electrical connection, having a relatively low resistance, between an electrically conductive layer (44) of the hose and the fluid connector. This can be used to provide a signal path from a sensor element in or on the hose to an electronic circuit in the system.
    公开号:BR112013016176B1
    申请号:R112013016176-0
    申请日:2011-12-21
    公开日:2021-03-02
    发明作者:Michael Paul Wells
    申请人:Eaton Corporation；
    IPC主号:
    专利说明:

    Historic
    [0001] Traditionally, a hose to be connected to a system device, such as a hydraulic pump, is first connected to some type of hose connector, such as a fluid connector, having a filamented nipple. The fluid connector, then, is typically connected to some type of device, such as a valve block or pump, using a coupling nut. As the hose is forced against the filaments of the nipple, the filaments apply a holding force, moving the inner layer of the hose out without cutting it. If there is a need for electrical connection between an electrically conductive intermediate layer, such as a hose layer of woven or spiral braided steel wires, and an electronic system, then a jumper wire is required to be passed from the inner layer of braided wire to the fluid connector, or directly to the electronics. These prior art connecting wires are unreliable, expensive to assemble and susceptible to damage during assembly or operation. summary
    [0002] The present invention describes a fluid connector including a hose clamp having at least one sharp end flap, which extends from the clamp body. In one configuration, the hose clamp has two sharp end flaps that extend from the clamp body. The hose clamp provides a cutting function, when a hose to conduct fluid having a malleable layer covering an electrically conductive layer is connected to the fluid connector, the inner layer of the hose being cut at the installation, providing an electrical path for the layer electrically conductive from the hose to the fluid connector, and finally to the device to which the fluid connector is connected, such as a pump, or directly to an electronic circuit. The hose clamp of the invention is particularly suitable for use in connection with hoses, which incorporate some type of sensor element, whose generated signal must be carried by the electrically conductive layer of the hose via a fluid connector to a device, where it is made available for use by other control or diagnostic systems. The hose clip is shown to have two sharp end tabs, which extend from the clip body. The hose clamp provides a knife-like cutting function when the hose is fully installed in the fluid connector. The inner layer of the hose is cut by at least one of the end flaps, providing an electrical path from the electrically conductive layer of the hose to the fluid connector, via cutting clamp. In other words, the electrical signal can then be transported through the fluid connector to the connected device, or, if the connector is isolated, the signal can be directly transported to an electronic circuit, such as a diagnostic or control system. . The hose clamp of the invention is particularly suitable for use in hoses that incorporate some type of sensor element, which generates a signal that must be carried by the conductive layer of the hose, through the fluid connector, to a device, where it is made available for use to sense hose life or system pressures by other control and diagnostic systems. The conductive layer of the hose is usually a braided or woven steel layer, although other conductive materials can also be used in accordance with the teachings of the present invention.
    [0003] Also another configuration is described, where a connector socket having inwardly extending cutting tabs, which is used with hoses having a second conductive layer, and an intermediate non-conductive layer separates the first conductive layer from the second conductive layer . The cutting flaps cut the outer layer of the hose and penetrate by contacting and slightly deforming the second conductive layer. This completes the electrically conductive path from the second conductive layer to the socket. The socket is electrically isolated from the connector body by means of an insulating collar. In the case where higher fluid pressures need to be faced by the connected fluid and hose connector, then a stamped socket can be used to apply additional tightening force on the outside of the hose over the hose nipple. Brief description of the drawings
    [0004] Figure 1 is a cross-sectional view of an exemplary cutting clamp, mounted on a fluid connector;
    [0005] Figure 2 is a perspective view of the exemplary cutting clamp;
    [0006] Figure 3 is a perspective view of the exemplary cutting clip in Figure 1;
    [0007] Figure 4 is a cross-sectional view of a hose about to be installed in the fluid connector of figure 3;
    [0008] Figure 5 is a cross-sectional view of a hose installed in the fluid connector of figure 4;
    [0009] Figure 6 is a cross-sectional view of an alternative configuration of exemplary fluid connector with a multi-layer hose installed;
    [0010] Figure 7 is an end plan view of an alternative configuration of the socket shown in the fluid connector of the alternative configuration of Figure 6; and
    [0011] Figure 8 is a cross-sectional view of a second alternative socket configuration. Detailed Description
    [0012] Referring now to the discussion that follows, and also to the drawings, illustrative solutions for the proposed systems and methods will be shown in detail. Although the drawings represent some possible solutions, the drawings are not necessarily to scale, and certain components may have been exaggerated, removed, or partially sectioned to better illustrate and explain the present specification. In addition, the description set out in this is not intended to be exhaustive, or in any way, limit or restrict the claims to the precise shapes and configurations shown in the drawings and described in the detailed description which follows.
    [0013] In addition, a number of constants can be introduced in the discussion that follows. In some cases, illustrative values of the constants are provided. In other cases, no specific value is given. The values of the constants depend on the characteristics of the associated hardware and the interrelation of such characteristics, as well as on the environmental conditions and operational conditions associated with the described system.
    [0014] Referring now to figures 1 to 3 of the drawings, several views of fluid connector 18 and hose clip 10 are shown. The exemplary hose clip 10 has a clip body 12 and two relatively sharp end flaps 14 and 16, which extend out of the clip body 12. The clip 10, as shown in figures 1 to 3, is installed in the body 12 of the fluid connector 18. The clamp body 12 having a ring shape is spring loaded when installed in the fluid connector 18, and firmly engages the fluid connector 18 when it is expanded, and then retracts over the body 12 of fluid connector 18, when shown installed in figure 3. As will be shown and discussed with reference to figure 5, the hose clip 10 provides a cutting function when the inner layer of the hose is cut by the end flaps 14, 16, so that the end flaps 14, 16 contact an electrically conductive layer 44 of the hose 40, providing an electrical path that is established from the conductive layer 44 of the hose 40 to a fluid connector 18, and finally to di device to which the fluid connector 18 is attached, such as a hydraulic pump, motor, valve body, etc. or directly to an electronic circuit. The cutting clamp 10 of hose 40 of the present invention is particularly suitable for use with a hose that incorporates signals that must be transported by the conductive layer of the conductive layer 40, through the fluid connector 18, to an electrical circuit, where it is made available for use by a control or diagnostic system. A life-sensing system is an example of such a system (see figure 4).
    [0015] The cutting clip 10 can either be stamped on the body of the fluid connector 18 or permanently affixed to the body 12 or, instead, formed as part of the body 12 of the fluid connector 18. In this configuration, one or more of the flaps of cutting edges 14 and 16 extend from the body 12 to cut the inner layer 42 of the hose 40 and electrically engage the conductive intermediate layer 44 (see figure 5).
    [0016] The fluid connector 18 has a hexagonal nut 20, which is connected to a mounting extension section 19 adjacent to the chamfered section, which is shaped to engage a tool, such as a wrench, to secure the fluid connector 18 against rotation when the coupler nut 31 (see figure 4) is tightened. The coupler nut 31 is rotationally mounted on the mounting extension 19. A passage 22 formed along a central geometric axis 25 of the fluid connector 18 provides a path to allow the pressurized fluid to flow in passage 25. A circumferential intermediate flange 26 extends outwardly from the body of the fluid connector 18 and positions the insulating collar 36. Not shown in figures 1 and 3, the hose socket 29 is mounted on the flange 26, with the insulating collar 36, positioned between the hose 29 and flange 26 to electrically insulate hose socket 29 from fluid connector 18. As will be discussed in more detail below, insulating collar 36 will not be necessary if electrical insulation is not required. The hose socket 29 is an optional part, which is used to handle high pressure fluids. It should be noted that if socket 29 is used and no electrical insulation is required, then insulating collar 36 can be eliminated. Also not shown in figures 1 and 3, the coupling nut 31 used to attach the fluid connector 18 to another device for operation with fluid, such as a pump or valve body. The intermediate flange 26 locates the cutting clamp 10 on one side of the clamp body 12, while a first filament 28 serves to locate the other side of the cutting clamp 10 of the clamp body 12.
    [0017] Referring now to figure 4 of the drawings, a cross-sectional view of the fluid connector 18 is shown together with a fluid conductive hose 40, to be forced against the fluid connector 18. Attached to the coupling body 12 on the insulating collar 36 it has a hose socket 29. The hose 40 is about to be installed in the filament section 32 of the fluid connector 18. The hose 40 is shown having an inner layer 42, an electrically conductive intermediate layer 44, and a layer wear-resistant outer 46. It should be noted that any number of layers can be used to make up the inner layer 42, and the conductive intermediate layer 44 and the outer layer 46 can be used to make up the hose. The inner layer 42 can be made from PTFE or any other chemically impenetrable material, while the intermediate layer 44 is usually a braided wire, although other electrically conductive materials can also be used, such as veneer or carbon fiber. Then, other layers can be added, as required for a specific application. An important aspect of the exemplary cutting clamp 10 is that the end flaps cut the inner layers 42 of the hose 40.
    [0018] Hose socket 29 is supported on insulating collar 36 by wrapping and being stamped on hose 40 after hose 40 has been forced against hose nipple 32. Hose socket 29 is stamped on hose 40 to provide a force clamping and forcing the hose 40 against the nipple, specifically against filaments, such as nipple filaments 28. Insulating collar 36 can locate and secure a prior art socket type 29 with a smooth inner surface. If socket 29 is used with a hose 40 having only a single conductive layer 44, as shown in figure 4, then, if desired to provide an electrical conduction between the conductive layer of the hose and the socket, then the outer layer 46 of the hose 40 it can be scraped, providing contact between the inner surface of socket 29 and the conductive layer 44 of hose 40.
    [0019] A coupling nut 31 is rotationally secured in the body section 12 of the coupling 20 in the circumferential section 15 located between the hexagonal nut 20 and the coupling section 24. The coupling nut 31 is internally coupled to the threads 29, which connect the threads formed in some type of hydraulic device, such as a pump.
    [0020] A chamfered section 24 is provided to engage a coupling element formed in a hydraulic device, such as a pump body, to provide a sealed path for the fluid. The coupling nut 31 is threaded on the inner face of the coupling nut 31. The threads 29 engage coupling threads formed on the pump body or on another hydraulic device, where the coupling nut 31 can be turned and tightened on the hydraulic device by the section hexagonal 33 to thread the chamfered section 24 on the coupling element of the hydraulic device.
    [0021] The hose 40 is attached to the fluid connector 18 by at least one filament, such as the first filament 28, by multiple hose filaments, indicated in figure 2 as filament nipple 32. The filament section 32 of the fluid connector 18 composes what is called in the fluid connector nipple technique 18. The hose 40 is known to have three layers - a protective outer layer 46, an electrically conductive layer 44, and an inner layer 42 made of a material impenetrable to the fluid for the which the hose was provided for. The hose 40 is forced on the fluid connector coupling 10, on the filaments 28 on the hose nipple 32, and then on the end flaps 14, 16. At this moment, the end flaps 14, 18 cut the inner layer 42 and electrically contact conductive layer 44.
    [0022] Referring now to figure 5 of the drawings, a cross-sectional view of the fluid connector 18 with the cutting clamp 10 and installed hose 40 is shown. The exemplary cutting clamp 10 has a clamp body 12 and two relatively sharp end flaps 14, 16, which extend out of the clamp body 12. The cutting clamp 10 is installed on the body 12 of the fluid connector 18. The body clamp 12 is spring loaded, and firmly engages fluid connector 18, expanding and then contracting on body 12 of fluid connector 18. Hose clamp 10 provides a cutting function when the hose is pressed against the filament section 32 and flange 26, where the inner layer 42 of the hose 40 is cut by the end flaps 14, 16, contacting the electrically conductive layer 44 of the hose 40, and providing an established electrical path from this inner conductive layer of the hose to the connector of fluid 18, and, finally, to an electrical circuit. The fluid connector is mounted on a fluid device, to which the fluid connector 18 is mechanically and sometimes electrically attached, to the device to which the fluid connector 18 is attached, such as a hydraulic pump, motor, body valve, etc., and then to an electronic circuit. The hose clip 10 of the present invention is particularly suitable for use on a hose 40 that generates a signal that must be carried by the hose 40 through the fluid connector 18 to an electronic device, where it is made available for use by a control system and diagnostics for a hose life sensor system (not shown).
    [0023] The fluid connector 18 has a hexagonal nut shaped to engage a tightening tool, such as a wrench. A central passageway 22 formed along a central geometric axis of the fluid connector 18 provides a path to allow the pressurized fluid to pass through the passageway. A circumferential intermediate flange 26 extends outside the body of the fluid connector 18, and helps to position the insulating collar 36. The intermediate flange 26 locates the cutting clamp 10 on one side of the clamp body 12, while a first filament 28 serves to locate the other side of the cutting clamp 10 in the clamp body 12. A chamfered section 24 is formed to engage a coupling chamfer formed in the hydraulic device, such as the pump body. The hose 40 is attached to the fluid connector 8 by at least one filament 28 or multiple filaments, which is indicated as filament section 32. The filament section 32 of the fluid connector 18 makes up the so-called nipple of the fluid connector 18.
    [0024] The exemplary cutting clamp 10 has a clamp body 12 and two relatively sharp flaps 14, 16 that extend outwardly from the clamp body 12. The cutting clamp 10 is installed in the body of a fluid connector 18 through of an inherent spring action incorporated in the clamp body 12. The clamp body 12 is spring loaded and firmly engages the fluid connector 18, expanding and contracting over the body 12 of the fluid connector 18. The hose clamp 10 provides a cutting function, when the hose is pressed over the filament section 32 and against the flange 26, where the inner layer of the hose 40 is cut by the end flaps 14, 16, so that the end flaps 14, 16 contact electrically the conductive layer 44 of the hose 40, providing an electrical path from the conductive layer 44 of the hose 40 to the fluid connector 18. The hose clip 10 of the present invention is particularly suitable for use in a hose q ue generates an electrical signal, which must be carried by the conductive hose layer to the fluid connector and to an electronic circuit or hydraulic device, such as a pump or valve body, where it is then made available for use by a control or diagnosis.
    [0025] The fluid connector 18 has a hexagonal nut 20 configured to be engaged and secured by a tightening tool, such as a wrench. A central passage 22 formed along a central geometric axis 25 of the fluid connector 18 provides a flow path to allow the pressurized fluid to flow through the passage. A circumferential intermediate flange 26 extends outside the body of the fluid connector 18 and helps to position the insulating collar 36. The intermediate flange 26 locates the cutting clamp 10 on one side of the clamp body 12, while a first filament 28 serves to locate the other side of the cutting clamp 10 on the clamp body 12. A chamfered section 24 is formed to engage the chamfered coupling surface with a hydraulic device, such as the pump body.
    [0026] The hose 40 is shown made of an inner layer 42, electrically conductive intermediate layer 44, and wear resistant outer layer 46. It should be noted that any number of layers, in addition to the inner layer 42 and intermediate conductive layer 44, can be used on the hose. The inner layer 42 can be made from PTFE or another chemically impenetrable material, and having more than one layer, while the intermediate layer 44 is usually made of spiral braided or interlaced steel wire, although other materials or electrically conductive configurations can be used, such as veneer or carbon fiber. Then, other layers can be added as required for a specific application.
    [0027] If the hose 40 has at least a first conductive layer and you wish to provide an electrical connection between the conductive layer and the hose socket, then the outer layer of the hose can be scraped off with respect to the conductive layer, causing the socket has a smooth inner surface that contacts the conductive layer when stamped on the hose. This configuration provides an electrical path from the conductive layer in the hose to the hose socket. The electrical signal, then, can be used by a variety of electrical circuits. A combination of hoses 40, 50 and hose sockets 29, 59 can be used to conduct electrical signals carried by one or more conductive layers 44, 54, 58 of hoses 40, 50.
    [0028] If the hose has a first conductive layer and a second conductive layer, then the first conductive layer can be electrically connected to the cutting tabs of the cutting clamp and the second conductive layer can be electrically connected to the socket, using socket tabs, or scraping the outer layer of the hose to expose it to the socket when it is stamped.
    [0029] Referring now to figure 6 of the drawings, a cross section of a multilayer hose 5, having two conductive layers fully installed in the exemplary fluid connector 18 to compose the fluid connector set 49, is shown. The hose 50 has an inner layer 52, a first conductive layer 54, an intermediate layer 56, a second conductive layer 58, and an outer conductive layer 60. It should be noted that any number of layers of hose can be used to obtain the desired ones. hose characteristics.
    [0030] A hose socket 59 is attached to the insulating collar 36 and extends to partially cover the hose 50, after the hose 50 has been mounted on the hose coupling 18. The hose socket 59 is then stamped with a precise load pressure in the hose. If it is desired to provide an electrical contact with the second conductive layer, then sharp flaps 62A, 62B are formed on the inner wall of the hose socket 59 using a machine or punching operation, where it covers the hose 50. When socket 59 is stamped on the hose 50, the flaps cut the outer conductive layer 60 of the hose 50 and extend to contact the second conductive layer 58.
    [0031] Before stamping socket 59, the cutting flaps 62A, 62B extend to contact, but without cutting, the outer layer 60 of the hose 50. After stamping the socket 59, the cutting flaps 62A, 62B cut the outer layer 60 of the hose 50 for contacting and pressing the outer conductive layer 58. The flaps 62A, 62B can be formed by puncturing the outside of socket 59, so that the flaps 62A, 62B extend inward. Socket 59 is electrically isolated from connector body 12 by insulating collar 36.
    [0032] To electrically connect the inner conductive layer 54 to the connector body 18, the cutting clamp 10 of figure 2 and the exemplary hose socket 59 can be used, as previously discussed. This combination could be used to provide two separate electrical signals for a control or diagnostic system. Any combination of cutting clamp 10 and socket 59 having cutting flaps 62A, 62B or prior art socket 29 with a scraped hose could be used to provide electrical signals from a hose, such as a hose with a life sensing system, to a diagnostic device or other electronic circuitry.
    [0033] Referring now to figure 7 of the drawings, an end plan view of the hose socket 59 of figure 6 is shown. The cutting flaps 62A, 62B extend far enough inward to pierce the outer layer 60 of the hose 50 when stamping socket 59, as shown. The cutting flaps 62A, 62B can be square or punctured, as long as they perforate the outer layer 60 of the hose, when stamping the socket 59. Since the cutting flaps 62A, 62B can be punched from the wall of the socket 59, one wide variety of shapes can be used to function as required.
    [0034] Referring now to figure 8 of the drawings, a cross-sectional view of a second alternative high pressure socket configuration 80 is shown. Socket 80 is constructed to withstand heavy strain in high pressure fluid applications. Circular ribs 85 cut the outer layer 60 of the hose 50 and contact the second conductive layer 58 of the hose 50. Thus, establishing an electrical path from the second conductive layer 58 to the electrically insulated socket 80 of the body 19 of the fluid connector 18.
    [0035] The present invention has been particularly shown and described with reference to the accompanying illustrations, which are merely illustrative in character of the best ways of carrying out the present invention. It should be understood by those skilled in the art, that various alternatives of the illustrations of the specification described herein may be employed in the practice of the invention without departing from its spirit and scope, as defined in the attached claims. It is intended that the appended claims define the scope of the present invention, and that the method and apparatus within the scope of the claims and equivalents are covered by them. The description of the present invention is to be understood as including all new and non-obvious combinations of these elements. In addition, the attached illustrations are merely illustrative, and no single component or element is essential to all possible combinations, claimed in this one, or to be claimed in subsequent patents.
    权利要求:
    Claims (9)
    [0001]
    1. Method for providing electrical connection, between a conductive layer of hose and a fluid coupling body, characterized by the fact that it comprises: - providing a cutting clamp (10) having a clamp body (12) and a cutting edge flap (14, 16) extending radially outward from said clip body (12); - affixing said cutting clamp (10) to said fluid coupling body (18); - providing a hose (40, 50) having an inner layer (42) and a conductive layer (44, 54); - install said hose (40, 50) on said fluid coupling, so that said cutting edge flap (14, 16) cuts said inner hose layer (42) and electrically contacts said conductive layer (44, 54) of said hose (40, 50); affixing said cutting clamp (10) to said fluid coupling body (18) comprises arranging said cutting clamp (10) between a pair of opposing portions which are integrally formed in said fluid coupling body (18) and extending radially from it.
    [0002]
    2. Method, according to claim 1, characterized by the fact that it additionally comprises a socket (29) mounted on said fluid connector (18).
    [0003]
    Method according to claim 2, characterized in that it additionally comprises at least one cutting flap (14, 16) extending inwardly from an internal surface of said socket (29) and cutting said outer layer ( 46) of said hose (40).
    [0004]
    Method according to claim 1, characterized by the fact that it also includes an intermediate layer (56), a second conductive layer (58) and an outer layer (60).
    [0005]
    5. Method, according to claim 4, characterized by the fact that it comprises: - providing a hose socket (59) mounted on said coupling body (18), said hose socket (59) having sharp tabs (62) extending inward from it; and - stamping said hose socket (59) on said hose (50), causing said cutting flaps (62) to penetrate said external layer (60) of the hose (50) and extending to electrically contact said second conductive layer (58).
    [0006]
    6. Socket for fluid connector, to be used in the method to provide electrical connection, as defined in any one of claims 3 to 5, characterized by the fact that it has at least one cutting tab (14, 16) extending a sufficient distance an internal surface of said socket (59) to cut an outer layer (60) of a fluid-conducting hose (50) to contact an electrically conductive layer (54, 58) of said hose (50).
    [0007]
    7. Fluid coupling, which is electrically conductive and to be used in the method to provide electrical connection, as defined in any one of claims 1 to 5, characterized by the fact that it has at least one cutting edge which is also electrically conductive affixed to a body section of the fluid coupling (18), at least one cutting end including a cutting clamp (10) comprised of a spring loaded clamp body (12) and at least one cutting end flap (14, 16) extending externally from the clip body (12); the clip body (12) being configured to securely engage the body section of the fluid coupling (18) when it is expanded externally and then retracted over the body section; the at least one cutting edge flap (14, 16) extending to cut at least the inner layer (42, 52) of an installed hose (40, 50) and then contact a conductive layer (44 , 54) of the hose.
    [0008]
    Coupling according to claim 7, characterized in that the cutting clamp (10) is arranged between a pair of opposing portions (26, 28) that are integrally formed in the aforementioned fluid coupling body section (18) and extending radially from it.
    [0009]
    Coupling according to claim 8, characterized in that the cutting clamp (10) defines a circumferential distance between the at least two cutting edge flaps (14, 16) and the cutting clamp (10) further including a clamp body (12) extending continuously from a cutting edge flap (14, 16) to another cutting edge flap (14, 16), the clamp body (12) ending in a circumferential direction in at least two cutting edge flaps (14, 16) to define the circumferential distance.
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    法律状态:
    2018-12-18| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-07-02| B06T| Formal requirements before examination [chapter 6.20 patent gazette]|
    2020-04-14| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2020-12-08| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-03-02| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 21/12/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    2021-05-11| B25G| Requested change of headquarter approved|Owner name: EATON CORPORATION (US) |
    2021-06-01| B25A| Requested transfer of rights approved|Owner name: EATON INTELLIGENT POWER LIMITED (IE) |
    优先权:
    申请号 | 申请日 | 专利标题
    US12/977,309|2010-12-23|
    US12/977,309|US9038259B2|2010-12-23|2010-12-23|Fluid connector with a hose cutting clip|
    PCT/US2011/066443|WO2012088251A1|2010-12-23|2011-12-21|Fluid connector with a hose cutting clip|
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