• 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:
    Transformer (1) comprising a transformer core (2) constituted by a stack of sheets of ferromagnetic material according to one direction, called longitudinal direction (δ), two closing and support covers (3, 4) arranged at the ends of the core (2) according to the longitudinal direction (δ), each of the closure and support caps (3, 4) being provided with fixing legs (5, 6, 7, 8) to a surface (s), these legs (5, 6, 7, 8) provided with a support surface on said surface, so that these support surfaces define a plane (a) that is parallel to the longitudinal direction (δ) in which the covers (3, 4) of closure and support comprise a frame (31, 41) for the fitting of the transformer core (2) and are pieces of molded plastic. The invention also relates to a set of caps and to a transformer mounting method. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2630810A1
    申请号:ES201630200
    申请日:2016-02-22
    公开日:2017-08-24
    发明作者:Xavier FAURIA MIRÓ；Juan Francisco CARDONA GONZÁLEZ
    申请人:Polylux SL；
    IPC主号:
    专利说明:

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    DESCRIPTION
    TRANSFORMER
    The present invention relates to a reduced cost transformer, whose assembly steps can be automated more easily than in the state of the art and whose costs are lower.
    Background of the invention
    The present invention is part of the IP00 single-phase control and maneuver transformers sector, a classification established by the IEC 60529 standard, which indicates that these are transformers that do not have protection against the entry of water or the entry of solid objects .
    Transformers are known that comprise:
    - A transformer core consisting of a stack of sheets of ferromagnetic material according to one direction, called the longitudinal direction;
    - Two closing and support covers arranged at the ends of the core according to the longitudinal direction;
    - Each of the closing and support covers being provided with fixing legs, to a surface;
    - These legs being provided with a support surface on said surface, so that these support surfaces define a plane that is parallel to the longitudinal direction;
    Although very widely used and optimized, the state-of-the-art IP00 transformers have a number of drawbacks:
    - The frame or foot of union and support is expensive, as it is a piece of steel that must be bent, stamped and welded.
    - They have limited capabilities in terms of connection.
    - Present problems of scalability;
    Although this is a minor inconvenience, the state of the art transformers
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    They need an intermediate piece to be coupled to a DIN rail.
    Description of the invention
    With the device of the invention, the aforementioned drawbacks are resolved, presenting other advantages that will be described.
    For this, a transformer is proposed that includes:
    - A transformer core consisting of a stack of sheets of ferromagnetic material according to one direction, called the longitudinal direction;
    - Two closing and support covers arranged at the ends of the core according to the longitudinal direction;
    - Each of the closing and support covers being provided with fixing feet to a surface;
    - These legs being provided with a support surface on said surface, so that these support surfaces define a plane that is parallel to the longitudinal direction;
    characterized by the fact that the closure and support covers comprise a frame for transformer core engagement and are molded plastic parts.
    This transformer has the following advantages:
    - Being the molded covers, they can incorporate many functions in an inexpensive way (it is only necessary to modify the mold);
    - Steel is dispensed with, which is expensive and unmanageable;
    - As will be seen, the plastic nature of the covers makes it possible to simplify the operation of union with the transformer core.
    It is true that there are transformers provided with a plastic envelope, but their structure differs from that claimed. There are transformers with plastic covers, but these are not IP00 transformers and the relationship between the covers and the longitudinal direction is perpendicular to the one claimed. An example is described in publication ES 2 253 972 A1, in the name of the applicant.
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    Transformers such as those described in the aforementioned document of the state of the art are intended for some degree of protection, inherently excluding the IP00 grade, so they require a plastic housing. These are non-scalable transformers, since the covers cannot be separated from each other according to the number of plates.
    On the other hand, IP00 transformers are in a cabinet, generally of constant depth, so that lateral scalability, in a direction parallel to the fixing wall, is desirable. Precisely, the transformer of the invention allows this scalability, since the fixing surface is parallel to the longitudinal axis. It should be noted that in this way it is not necessary to increase the depth of the cabinet, which should be done if the transformer of the mentioned document is mounted.
    According to various optional features of the present invention:
    - The transformer comprises joining means between the two closing covers.
    - The transformer comprises joining means between each of the two closing caps and the transformer core.
    - In the event that it is envisaged that the assembly is assembled by joining the two closing covers, the joining means comprise four through holes according to the longitudinal direction common to the sheets of ferromagnetic material and one of the closing and support covers comprises four extensions intended to pass through said through holes, so that the ends of said extensions can be joined by heat welding or ultrasound to the other cover. This facilitates the automation of the transformer assembly process, and avoids the use of screws, or other more expensive and more difficult means of automation.
    - The transformer comprises a molded bridge holder with one of the closing and support covers for the storage of bridges. An appreciable advantage of the invention, as will be seen throughout the description, is the possibility of shaping many functions in the process of obtaining the closure caps.
    - One of the covers includes molded cavities for anchoring the bridges in use.
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    - The transformer comprises a housing for LED indicator, the housing being molded with the closing and support covers.
    - The transformer comprises a molded fuse housing with the closing and support covers.
    - The transformer comprises upper extensions for the accommodation of the transformer connectors.
    - one of the covers comprises, close to the plane defined by the support surfaces, glues parallel to this plane, the other of the covers comprising extensions of complementary section of the said glues, so that they allow guiding the covers to each other and closing correctly The transformer
    - one of the covers comprises extensions opposite to the legs according to the longitudinal direction, these extensions being provided with a transverse incoming groove provided with at least one fixed retaining tooth and a movable tooth for anchoring and disassembly, for the fitting of the transformer in a DIN rail It is a very advantageous feature of the invention with respect to the state of the art, since in current solutions it must be done by means of screws.
    - The faces of the covers opposite the support surfaces comprise opposite and facing grooves for fitting an information label in a box. This allows durable labels to be used, replacing the labels attached by adhesive or paper, which end up peeling and deteriorating.
    - each of the covers comprises a central opening for the fitting of the ends of the transformer core and in each of the covers, two side protection flanges of the protruding ends of the transformer core.
    - each of the covers comprises two side flanges contained in planes parallel to the longitudinal direction and to the plane defined by the support surfaces, these flanges being provided with an incoming cutout for anchoring by means of a screw of other elements.
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    - one of the covers comprises a cavity with two pre-positioning tabs in planes parallel to the longitudinal direction and to the plane defined by the support surfaces, this cavity being provided with a support and a passage, for self tapping, of a screw of DIN rail position lock.
    - the upper extensions for the housing of the connectors and the extensions provided with a slot are in the same cover.
    - One of the covers includes a molded housing with its closing element and molded identification information for a grounding terminal with its characteristic washer and screw.
    - one of the covers comprises, close to one of the legs, a housing for a contact grounding connector and tighten, without the need for a dedicated screw, washer and wire.
    - At least one of the covers includes molded information.
    - The transformer comprises a molded cover designed to position the wires before being welded to the terminals, prevent manipulation of the wires by a user and anchor the terminal covers.
    The invention also relates to a set of transformer covers, the transformer being of the type comprising a transformer core consisting of a stack of sheets of ferromagnetic material according to a direction, called longitudinal direction, the closing and support covers being intended for be arranged at the ends of the core according to the longitudinal direction, each of the closing and support covers being provided with fixing legs to a surface, these legs being provided with a supporting surface on said surface, so that these surfaces of Support define a plane that is parallel to the longitudinal direction, characterized by the fact that the closing and support covers comprise a frame for transformer core engagement and are molded plastic parts.
    Finally, the invention relates to a method of assembling a transformer comprising:
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    - Obtain a transformer core consisting of a stack of sheets of ferromagnetic material according to one direction, called longitudinal direction;
    - Obtain by means of plastic molding two closing and support covers provided with fixing feet to a surface and a frame for the fitting of the transformer core;
    o These legs being provided with a support surface on said surface, so that these support surfaces define a plane that is parallel to the longitudinal direction once the core is fitted in the caps; o Understanding the two closing caps means of union with each other; or Said joining means comprising four extensions in one of the closing and support covers, these extensions being intended to pass through four through holes according to the longitudinal direction practiced in the sheets of ferromagnetic material;
    - Fit the ends of the core according to the longitudinal direction in the two closing and support covers;
    - join the ends of said extensions to the other cover by means of heat-welding or ultrasound.
    Brief description of the figures
    For a better understanding of what has been exposed, some drawings are combined in which, schematically and only by way of non-limiting example, a practical case of realization of the transformer of the invention is represented.
    Figure 1 is an exploded perspective view of the transformer of the invention.
    Figures 2 to 4 are side elevations of the transformer coupled to a DIN rail.
    Figure 5 is a plan view of the transformer coupled to a DIN rail.
    Figures 6 and 7 are an elevation and plan of a transformer locking part in the DIN rail.
    Figures 8 to 11 are various elevational and plan views of a cover and connection guide.
    Figures 12 and 13 are a perspective and elevation respectively of a grounding, which has its housing provided in one of the covers.
    Figures 14 to 17 are elevations and plan views of the cover provided with the connections.
    Figures 18 to 21 are elevations and plan views of the other cover.
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    Description of a preferred embodiment
    As can be seen in Figure 1, the invention relates to a transformer 1 comprising:
    - A transformer core 2 consisting of a stack of sheets of ferromagnetic material according to one direction, called longitudinal direction D;
    - Two covers 3, 4 of closure and support arranged at the ends of the core 2 according to the longitudinal direction D;
    - Each of the covers 3, 4 of closure and support being provided with fixing legs 5, 6, 7, 8 to a surface;
    - These legs 5, 6, 7, 8 being provided with a support surface on said surface, so that these support surfaces define a plane A that is parallel to the longitudinal direction D;
    wherein the closure and support covers 3, 4 comprise a frame 31, 41 for the fitting of the transformer core 2 and are molded plastic parts.
    Binding means can be provided between the two closing covers 3, 4, or alternatively joining means between each of the two closing covers 3, 4 and the transformer core 2.
    In the first case, as seen in Figure 1, the joining means comprise four through holes 21 according to the longitudinal direction D common to the sheets of ferromagnetic material and one of the closing and support covers 4 comprises four extensions 42 intended to pass through said through holes 21, so that the ends of said extensions 42 can be joined by heat welding or ultrasound to the other cover 3.
    As can be seen in Figure 1, a molded bridge holder 9 is provided with one of the closure and support covers 3 intended for the storage of bridges 91.
    As can be seen in Figures 2 and 5, one of the covers 4 comprises molded cavities for anchoring the bridges in use 51A and 51B.
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    As indicated in Figure 5, one of the covers 4 comprises a housing 10 for LED indicator, the housing 10 being molded in the cover and support cover 4.
    As shown in Figure 2, a housing 11 for fuses molded in the closure and support cover 4 is provided.
    As can be seen in Figure 1, one of the covers 4 comprises upper extensions 12 for housing the transformer connectors.
    Also, as can be seen in FIG. 1, one of the covers 3 comprises, near the plane A defined by the support surfaces, glues 13 parallel to this plane A, the other of the covers 4 comprising extensions 14 of complementary section of the mentioned ones. glues 13, so that they allow the caps to guide each other.
    As can be seen in Figure 16, one of the covers 4 comprises extensions 15 opposite to the legs according to the longitudinal direction, these extensions 15 being provided with a transverse incoming groove 16 provided with at least one fixed retaining tooth 17 and a movable tooth for anchoring and unpinning 50 (figure 6), to fit the transformer into a DIN rail.
    The faces of the covers 3, 4 opposite the support surfaces comprise opposite and facing grooves 18 for the fitting of an information label 19 in a box, as illustrated in Figure 1.
    As illustrated in Figures 14 and 20, each of the covers 3, 4 comprises a central opening O for the fitting of the ends of the transformer core 2 and in each of the covers 3, 4, two protection tabs side 22, 23 of the protruding ends of the transformer core.
    As illustrated in Figure 3, each of the covers 3, 4 comprises two side flanges 24 contained in planes parallel to the longitudinal direction D and to the plane A defined by the support surfaces, these flanges 24 being provided with a cutout incoming for anchoring by means of a screw of other elements.
    As illustrated in Figure 2, the cover 4 comprises a cavity 29 with two flanges of
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    pre positioning on pianos parallel to the longitudinal direction D and to the plane A defined by the support surfaces, this cavity 29 being provided with a support and a passage, for self tapping, of a screw 30 for locking the position in the DIN rail.
    The upper extensions 12 for housing the connectors and the extensions 15 provided with a slot 16 are in the same cover 4.
    As shown in Figure 19, one of the covers 3 comprises a molded housing 60 with its closure element 60A and with molded identification information for a grounding connection terminal.
    As shown in Fig. 15, one of the covers 4 comprises a housing 25 for a grounding connector 26 close to one of the legs.
    At least one of the covers comprises molded information 27, as shown in Figure 2.
    The transformer comprises a molded cover 43 intended to position the wires before being welded to the terminals, avoid manipulation of the wires by a user and anchor the terminal covers. This cover is shown in Figures 8 to 11.
    The invention, as illustrated in Figure 1, also refers to a set of covers 3, 4 for transformer 1, the transformer being of the type comprising a transformer core 2 constituted by a stack of sheets of ferromagnetic material according to a direction, called longitudinal direction D, the closing and support covers 3, 4 being arranged to be arranged at the ends of the core 2 according to the longitudinal direction D, each of the closing and support covers 3, 4 being provided with legs of fixing 5, 6, 7, 8 to a surface S, these legs 5, 6, 7, 8 being provided with a support surface on said surface S, so that these support surfaces define a plane A that is parallel to the longitudinal direction D, characterized in that the closing and support covers 3, 4 comprise a frame 31, 41 for the fitting of the transformer core 2 and are molded plastic parts. The cover set can comprise the same optional features
    Finally, a method of assembling a transformer 1 is claimed that
    understands:
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    Obtain a transformer core 2 consisting of a stack of sheets of ferromagnetic material according to one direction, called longitudinal direction D; Obtain by means of plastic molding two covers 3, 4 of closure and support provided with fixing legs 5, 6, 7, 8 to a surface and a frame 31, 41 for the fitting of the transformer core 2;
    o These legs 5, 6, 7, 8 being provided with a support surface on said surface, so that these support surfaces define a plane A that is parallel to the longitudinal direction D once the core is fitted in the covers 3, 4;
    or Understanding the two covers 3, 4 of closing means of union with each other;
    or Said joining means comprising four extensions 42 in one of the closing and support covers 4, these extensions 42 being intended to pass through four through holes 21 according to the longitudinal direction D made in the sheets of ferromagnetic material;
    Fit the ends of the core 2 according to the longitudinal direction D in the two covers 3, 4 of closing and support;
    join the ends of said extensions 42 to the other cover 3 by means of heat welding or ultrasound.
    Although reference has been made to a specific embodiment of the invention, it is evident to one skilled in the art that the transformer, the set of covers and the process described are susceptible of numerous variations and modifications, and that all the details These may be substituted by other technically equivalent ones, without departing from the scope of protection defined by the appended claims.
    权利要求:
    Claims (21)
    [1]
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    1. Transformer (1) comprising:
    - A transformer core (2) constituted by a stack of sheets of ferromagnetic material according to one direction, called the longitudinal direction (D);
    - Two caps (3, 4) of closure and support arranged at the ends of the core (2) according to the longitudinal direction (D);
    - Each of the closing and support covers (3, 4) being provided with fixing legs (5, 6, 7, 8) to a surface (S);
    - These legs (5, 6, 7, 8) being provided with a support surface on said surface (S), so that these support surfaces define a plane (A) that is parallel to the longitudinal direction (D);
    characterized in that the closing and support covers (3, 4) comprise a frame (31, 41) for the fitting of the transformer core (2) and are molded plastic parts.
    [2]
    2. Transformer according to claim 1, comprising joining means between the two closing covers (3, 4).
    [3]
    3. Transformer according to claim 1, comprising joining means between each of the two closing caps (3, 4) and the transformer core (2).
    [4]
    4. Transformer according to claim 2, wherein the joining means comprise four through holes (21) according to the longitudinal direction (D) common to the sheets of ferromagnetic material and one of the closing and support covers (4) comprises four extensions (42) intended to pass through said through holes (21), so that the ends of said extensions (42) can be joined by heat welding or ultrasound to the other cover (3).
    [5]
    5. Transformer according to any one of the preceding claims, comprising a bridge holder (9) molded with one of the closing and support covers (3) for the storage of bridges (91).
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    [6]
    6. Transformer according to any of the preceding claims, wherein one of the covers (4) comprises molded cavities for anchoring the bridges in use (51A and 51B).
    [7]
    7. Transformer according to any of the preceding claims, comprising a housing (10) for LED indicator, the housing (10) being molded with the cover (4) of closure and support.
    [8]
    8. Transformer according to any of the preceding claims, comprising a housing (11) for fuses molded with the cover (4) of closure and support.
    [9]
    9. Transformer according to any of the preceding claims, comprising upper extensions (12) for housing the transformer connectors.
    [10]
    10. Transformer according to any of the preceding claims, wherein one of the covers (3) comprises, near the plane (A) defined by the support surfaces, glues (13) parallel to this plane (A), the other comprising of the covers (4) extensions (14) of complementary section of the aforementioned glues (13), so that they allow the covers to guide each other.
    [11]
    11. Transformer according to any of the preceding claims, wherein one of the covers (4) comprises extensions (15) opposite the legs according to the longitudinal direction, these extensions (15) being provided with a slot (16) transverse inward provided with at least one fixed retaining tooth (17) and a movable tooth for anchoring and disassembly (50), for transformer engagement (3, 4) in a DIN rail.
    [12]
    12. Transformer according to any of the preceding claims, wherein the faces of the covers (3, 4) opposite the support surfaces comprise opposite and facing grooves (18) for fitting an information label (19) into a box.
    [13]
    13. Transformer according to any of the preceding claims, wherein each of the covers (3, 4) comprises a central opening (O) for fitting the ends of the transformer core (2) and in each of the covers (3, 4), two side protection tabs (22, 23) of the protruding ends of the transformer core.
    [14]
    14. Transformer according to any of the preceding claims, wherein each
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    of the covers (3, 4) comprises two side flanges (24) contained in pianos parallel to the longitudinal direction (D) and to the plane (A) defined by the support surfaces, these flanges (24) being provided with an incoming cutout for anchoring by means of a screw of other elements.
    [15]
    15. Transformer according to any of the preceding claims, wherein one of the covers (4) comprises a cavity (29) with two pre-positioning tabs in planes parallel to the longitudinal direction (D) and to the plane (A) defined by the support surfaces, this cavity (29) being provided with a support and a passage, for self tapping, of a screw (30) for locking the position in the DIN rail.
    [16]
    16. Transformer according to claims 8 and 10, wherein the upper extensions (12) for housing the connectors and the extensions (15) provided with a slot (16) are in the same cover (4).
    [17]
    17. Transformer according to any of the preceding claims, wherein one of the covers (3) comprises a molded housing (60) with its closure element (60A) and with molded identification information for a grounding terminal with its washer and screw features.
    [18]
    18. Transformer according to any of the preceding claims, wherein one of the covers (4) comprises a housing (25) for a grounding connector (26) close to one of the legs by contact and tighten, without need of dedicated screw, washer and thread.
    [19]
    19. Transformer according to any of the preceding claims, wherein at least one of the covers comprises molded information (27).
    [20]
    20. Transformer according to any of the preceding claims, comprising a molded cover (43) intended to position the wires before being welded to the terminals, prevent manipulation thereof by a user and anchor the terminal covers.
    [21]
    21. Set of covers (3, 4) for transformer (1), the transformer being of the type comprising a transformer core (2) constituted by a stack of sheet metal
    ferromagnetic material according to one direction, called longitudinal direction (D), being the
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    closing and support covers (3, 4) intended to be arranged at the ends of the core (2) according to the longitudinal direction (D), each of the closing and support covers (3, 4) being provided with fixing legs (5, 6, 7, 8) to a surface (S), these legs (5, 6, 7, 8) being provided with a support surface on said surface (S), so that 5 these support surfaces define a plane (A) that is parallel to the longitudinal direction (D), characterized in that the closing and support covers (3, 4) comprise a frame (31, 41) for the fitting of the transformer core (2 ) and are molded plastic parts.
    10 22. Assembly procedure of a transformer (1) comprising:
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    Obtain a transformer core (2) consisting of a stack of sheets of ferromagnetic material according to one direction, called the longitudinal direction (D); Obtain by means of plastic molding two covers (3, 4) of closure and support provided with fixing legs (5, 6, 7, 8) to a surface and a frame (31, 41) for the fitting of the transformer core (2 );
    o These legs (5, 6, 7, 8) being provided with a support surface on said surface, so that these support surfaces define a plane (A) that is parallel to the longitudinal direction (D) once the core in the covers (3, 4);
    or Understanding the two covers (3, 4) of closing means of union with each other;
    or Said joining means comprising four extensions (42) in one of the closing and support covers (4), these extensions (42) being intended to pass through four through holes (21) according to the longitudinal direction (D) made in the plates of ferromagnetic material;
    Fit the ends of the core (2) according to the longitudinal direction (D) in the two covers (3, 4) of closure and support;
    join the ends of said extensions (42) to the other cover (3) by means of heat-welding or ultrasound.
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    ES2253972A1|2004-02-26|2006-06-01|Polylux, S.L.|Low power package type transformer has transformer body and base molded from single plastic piece|
    ES2257156A1|2004-07-15|2006-07-16|Jose Cambronero Garcia|Protected transformer has cover and band of elastic insulating material connected to transformer using double anchoring system|
    US20080197961A1|2007-02-16|2008-08-21|Hammond Power Solutions Inc.|Method and apparatus for directly mounting fuses to transformer terminals|
    EP2677846A1|2011-02-17|2013-12-25|Kabushiki Kaisha Yaskawa Denki|Din-rail mount type device|
    DE102014102793A1|2014-03-03|2015-09-03|Harting Electric Gmbh & Co. Kg|Fastening element for a current sensor|
    WO2015177959A1|2014-05-20|2015-11-26|富士電機機器制御株式会社|Rail attachment apparatus for electrical device|
    法律状态:
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    优先权:
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    ES201630200A|ES2630810B1|2016-02-22|2016-02-22|TRANSFORMER|ES201630200A| ES2630810B1|2016-02-22|2016-02-22|TRANSFORMER|
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