A contactor

Abstract

The application provides a contactor, relates to the technical field of switches, and is used for reducing the possibility that the circuit board in the prior art cannot meet use requirements. The contactor comprises a base, a circuit board assembly and a plurality of conductive pieces, wherein the base has a containing cavity. The circuit board assembly is arranged in the containing cavity, and the circuit board assembly comprises a first circuit board and a second circuit board. One end of at least two conductive pieces is electrically connected with the first circuit board, and the other end of the at least two conductive pieces is electrically connected with the second circuit board. One end of the remaining at least two conductive pieces is electrically connected with the circuit board assembly, and the other end of the remaining at least two conductive pieces is electrically connected with the end part of a coil possessed by the contactor.

Description

Technical Field

[0001] This application relates to the field of switch technology, specifically to a contactor. Background Technology

[0002] A contactor is a versatile switching device that uses electromagnetic, pneumatic, or hydraulic principles to quickly disconnect or connect the main circuit connected to the contactor. The main circuit can provide the required power to the load.

[0003] With increasing demands on the current carrying capacity and heat dissipation of contactors, the size and number of components mounted on the circuit board have increased, placing greater demands on the area of ​​the circuit board. However, existing circuit boards may not be able to meet these requirements.

[0004] Therefore, there is an urgent need to propose a contactor to solve the problems existing in the current technology. Utility Model Content

[0005] This application provides a contactor to reduce the possibility that existing circuit boards may not meet usage requirements.

[0006] To achieve the above objectives, this application provides a contactor comprising a base, a circuit board assembly, and a plurality of conductive elements, wherein the base has a receiving cavity. The circuit board assembly is disposed within the receiving cavity and includes a first circuit board and a second circuit board. One end of at least two conductive elements is electrically connected to the first circuit board, and the other end of the at least two conductive elements is electrically connected to the second circuit board. One end of the remaining at least two conductive elements is electrically connected to the circuit board assembly, and the other end of the remaining at least two conductive elements is correspondingly electrically connected to an end of a coil of the contactor.

[0007] When adopting the above technical solution, the contactor provided in this application includes a circuit board assembly, and the circuit board assembly includes two circuit boards, namely a first circuit board and a second circuit board. Compared with the contactor in the prior art that uses a single circuit board, the contactor provided in this application increases the area of ​​the circuit board. This not only ensures the area of ​​the circuit board assembly and provides more installation space, but also meets the performance requirements such as increased current carrying capacity of the contactor. Moreover, the increased circuit board area increases the heat dissipation area and the heat exchange area with the outside of the circuit board, which is beneficial to meeting the heat dissipation requirements of the circuit board.

[0008] In addition, the circuit board assembly includes a first circuit board and a second circuit board. Compared with the use of a single circuit board in the prior art, the two circuit boards can be laid out separately, which helps to make reasonable use of the space in the cavity. They can also be designed with separate heat dissipation paths to reduce the temperature rise of the circuit board assembly.

[0009] In one possible implementation, the receiving cavity has adjacent first and second cavity walls. A first circuit board is disposed parallel to the first cavity wall, and a second circuit board is disposed parallel to the second cavity wall.

[0010] When the above technical solution is adopted, the first circuit board is arranged in parallel near the first cavity wall, which is conducive to the heat generated by the components on the first circuit board being conducted to the first cavity wall more quickly and then dissipated into the surrounding environment through the first cavity wall. This helps to control the temperature rise of the first circuit board, effectively reduce the operating temperature of the first circuit board, and improve the reliability and life of the contactor.

[0011] The second circuit board is positioned parallel to the second cavity wall, which facilitates the faster conduction of heat generated by the components on the second circuit board to the second cavity wall. The heat is then dissipated into the surrounding environment through the second cavity wall, which helps control the temperature rise of the second circuit board, effectively reducing its operating temperature and improving the reliability and lifespan of the contactor.

[0012] Moreover, it can make full use of the space that houses the cavity, thereby improving the compactness and integration of the contactor.

[0013] In one possible implementation, the receiving cavity has an open end and a closed end disposed opposite to each other. A limiting post is provided inside the receiving cavity, the limiting post having a first end and a second end disposed opposite to each other, the first end being disposed at the closed end, and the second end extending towards the open end. A limiting space is formed between the limiting post and the second cavity wall, and the second circuit board is inserted into the limiting space.

[0014] When using the above technical solution, during specific installation, the second circuit board can be installed simply by inserting it into the limiting space. There is no need to use bolts, rivets, etc., which can be done in one step, simplifying the structure and reducing assembly steps.

[0015] Meanwhile, the second circuit board is inserted into the limiting space and can be disassembled under certain conditions to repair or replace the second circuit board and the base separately, which can reduce maintenance costs.

[0016] In one possible implementation, a guide surface is provided on the side of the limiting post near the second cavity wall, and the guide surface is located at the second end. Along the direction from the second end to the first end, the guide surface is inclined towards the limiting space.

[0017] When using the above technical solution, the guide surface serves two purposes during the insertion of the second circuit board into the limiting space. Firstly, it guides the second circuit board between the two limiting posts and the second cavity wall, facilitating its installation. Secondly, it prevents the second end from scratching the second circuit board, thus avoiding damage.

[0018] In one possible implementation, a protrusion protruding into a limiting space is provided on the second cavity wall, and a limiting space is formed between the protrusion and the limiting post.

[0019] When the above technical solution is adopted, when the second circuit board is placed in the limiting space, the two surfaces of the second circuit board are respectively in limiting contact with the protrusion and the limiting post, so that there is a gap between the second circuit board and the second cavity wall. This gap can form an air flow channel, which can guide air to fully contact the second circuit board and quickly remove the heat of the second circuit board.

[0020] In one possible implementation, among the plurality of conductive elements electrically connected to the second circuit board, at least one end of a portion of the conductive elements passes through a limiting post and is electrically connected to the second circuit board.

[0021] When the above technical solution is adopted, the limiting post can support and limit the conductive component, thereby limiting the position of the conductive component. At the same time, it can improve the stability of the electrical connection between the conductive component and the second circuit board.

[0022] In one possible implementation, the conductive element is an L-shaped conductive sheet.

[0023] When the above technical solution is adopted, on the one hand, the L-shaped conductive sheet can adapt to the structure of the cavity, make reasonable use of space, and improve the compactness of the contactor.

[0024] On the other hand, compared to wires, the L-shaped conductive sheet has a larger contact area with the first and second circuit boards, which facilitates connection while ensuring the stability of the electrical connection and reducing contact resistance.

[0025] Furthermore, L-shaped conductive sheets are relatively rigid and have inherent structural support. They are not easily bent or drooped in a free state, maintaining a fixed shape and occupying a relatively fixed amount of space, thus preventing them from becoming messy or disorderly.

[0026] In addition, the L-shaped conductive sheet can also provide a certain supporting force to the second circuit board, improving the stability of the second circuit board within the limiting space.

[0027] In one possible implementation, the first circuit board and / or the second circuit board are provided with solder holes for mating with conductive components.

[0028] When the above technical solution is adopted, soldering the conductive component to the first or second circuit board can improve the stability of the electrical connection between the conductive component and the first circuit board, as well as between the conductive component and the second circuit board. Simultaneously, the soldering holes facilitate the matching and installation of the conductive component with the first or second circuit board, thereby improving installation efficiency.

[0029] In one possible implementation, a slot is provided on the first circuit board, and a buckle that mates with the slot is provided on the coil frame of the contactor, for attaching the first circuit board to the coil frame.

[0030] When the above technical solution is adopted, the first circuit board is snapped onto the coil frame when the buckle and the slot are engaged. The snapping of the first circuit board onto the coil frame is simple and quick, requiring no bolts or rivets, allowing for a one-step process and reducing assembly steps. Furthermore, under certain conditions, the first circuit board can be disassembled from the coil frame for repair or replacement, reducing maintenance costs.

[0031] In one possible implementation, a boss is provided on the coil frame, and a through hole that mates with the boss is provided on the first circuit board.

[0032] When the above technical solution is adopted, the boss and through hole facilitate the positioning and matching of the first circuit board with the coil frame, preventing the first circuit board from being installed in reverse or incorrectly. At the same time, when the boss extends into the through hole, it can improve the stability of the first circuit board on the coil frame. Attached Figure Description

[0033] Figure 1 This is a partial structural diagram of the contactor provided in an embodiment of this application.

[0034] Figure 2 This is a partial structural diagram of the base provided in an embodiment of this application.

[0035] Figure 3 This is a schematic diagram of the coil frame provided in an embodiment of this application.

[0036] Figure 4 A schematic diagram of a first circuit board provided in an embodiment of this application.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1-Base, 11-First cavity wall, 12-Second cavity wall, 121-Protrusion, 13-Limiting post, 2-Circuit board assembly,

[0039] 21-First circuit board, 211-Slot, 212-Through hole, 22-Second circuit board, 3-Conductive component, 4-Coil frame,

[0040] 41-Snap fastener, 42-Leading boss. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0043] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0044] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0045] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0046] In the description of this application, unless otherwise stated, "multiple" means two or more (including two), and similarly, "multiple groups" means two or more (including two groups).

[0047] With the increasing demands on the current carried by contactors and the need for heat dissipation, the size and number of components mounted on the circuit board have increased, placing greater demands on the circuit board area. However, existing circuit boards often use only a single board, which may not meet the application requirements.

[0048] In view of the problems existing in the above-mentioned prior art, please refer to Figure 1 As shown, this application embodiment provides a contactor, which includes a base 1, a circuit board assembly 2 and a plurality of conductive elements 3, wherein the base 1 has a receiving cavity and the circuit board assembly 2 is disposed in the receiving cavity.

[0049] The structure of base 1 is not limited here, nor are the structure and size of the cavity. The specific details shall be subject to the actual situation.

[0050] For example, the structure of the receiving cavity can be a polygonal prism structure. In the embodiments provided in this application, the receiving cavity is a cuboid structure.

[0051] In specific implementation, the receiving cavity has an open end and a closed end that are arranged opposite to each other, that is, one end of the receiving cavity is an open end, that is, the base 1 has a receiving cavity with one open end.

[0052] The contactor provided in this embodiment of the application also includes a cover, which can be placed on the base 1.

[0053] The connection method between the cover and the base 1 is not specifically limited here. For example, the cover and the base 1 can be connected by welding, screws or snap-fit.

[0054] The cover has a cavity with one end open, with the opening of the cavity facing the base 1, and the opening end of the cavity on the base 1 facing the cover. The cover is placed on the base 1, and the base 1 and the cover match to form the housing of the contactor provided in this application embodiment.

[0055] The circuit board assembly 2 is disposed within the receiving cavity, that is, the circuit board assembly 2 is disposed within the housing.

[0056] The housing can accommodate the circuit board assembly 2, providing a stable space for the circuit board assembly 2 and other components housed within the housing, ensuring that they can function normally without external interference.

[0057] Meanwhile, the housing provides positioning and support for components such as circuit board assembly 2, preventing displacement or damage to components housed within the housing during operation. The housing can also withstand a certain amount of external pressure, protecting circuit board assembly 2 from damage.

[0058] In addition, the housing has a protective function, which can prevent moisture, dust, dirt and other impurities from entering the housing, thereby avoiding corrosion or damage to components such as the circuit board assembly 2 installed inside the housing.

[0059] In specific implementation, the circuit board assembly 2 includes a first circuit board 21 and a second circuit board 22, such as Figure 1 As shown.

[0060] The dimensions of the first circuit board 21 and the second circuit board 22 are not specifically limited here.

[0061] Furthermore, the method by which the first circuit board 21 is disposed within the receiving cavity is not specifically limited here. For example, the first circuit board 21 can be disposed within the receiving cavity by means of snap-fitting, bonding, etc., but of course, it is not limited to these methods in practice.

[0062] The manner in which the second circuit board 22 is disposed within the receiving cavity is not specifically limited here. For example, the second circuit board 22 can be disposed within the receiving cavity by means of snap-fitting, bonding, etc., but of course, it is not limited to these methods in practice.

[0063] The number of conductive components 3 is multiple, and the specific number of conductive components 3 is not limited here.

[0064] In this circuit, at least two conductive elements 3 are electrically connected at one end to the first circuit board 21, and at the other end of the at least two conductive elements 3 are electrically connected to the second circuit board 22, thereby making the first circuit board 21 and the second circuit board 22 electrically connected.

[0065] In specific implementation, the number of conductive elements 3 used to electrically connect the first circuit board 21 and the second circuit board 22 can be an even number, such as two, four, or six.

[0066] One end of the remaining at least two conductive elements 3 is electrically connected to the circuit board assembly 2, and the other end of the remaining at least two conductive elements 3 is electrically connected to the end of the coil of the contactor, thereby making the circuit board assembly 2 electrically connected to the coil to supply power to the coil.

[0067] In practice, the number of coils can be one or two. A coil has two ends, and each end corresponds to one conductive element 3, that is, one coil corresponds to two conductive elements 3.

[0068] When there is one coil, there are two conductive elements 3 used to electrically connect the circuit board assembly 2 and the coil. In this case, one end of each conductive element 3 can be electrically connected to the first circuit board 21, and the other end of each conductive element 3 can be electrically connected to the two ends of the coil. Alternatively, one end of each conductive element 3 can also be electrically connected to the second circuit board 22, and the other end of each conductive element 3 can be electrically connected to the two ends of the coil.

[0069] When there are two coils, there are four conductive elements 3 used to electrically connect the circuit board assembly 2 and the coils. In this case, one end of each of the four conductive elements 3 can be electrically connected to the first circuit board 21, and the other end of each of the four conductive elements 3 can be electrically connected to the four ends of the two coils. Alternatively, one end of each of the four conductive elements 3 can also be electrically connected to the second circuit board 22, and the other end of each of the four conductive elements 3 can be electrically connected to the four ends of the two coils.

[0070] For ease of understanding, the electrical connection relationship of the contactor provided in the embodiments of this application will be explained using an example of four conductive elements 3 and one coil.

[0071] Meanwhile, for ease of description, the four conductive elements 3 are now defined as the first conductive element, the second conductive element, the third conductive element, and the fourth conductive element, respectively.

[0072] In practice, the two terminals of the control power supply can be electrically connected to the first circuit board 21, and the first circuit board 21 and the second circuit board 22 can be electrically connected through the first conductive element and the second conductive element.

[0073] Specifically, one end of the first conductive element is electrically connected to the first circuit board 21, and the other end of the first conductive element is electrically connected to the second circuit board 22. One end of the second conductive element is electrically connected to the first circuit board 21, and the other end of the second conductive element is electrically connected to the second circuit board 22.

[0074] The second circuit board 22 can be electrically connected to the coil through the third and fourth conductive elements.

[0075] Specifically, one end of the third conductive element is electrically connected to the second circuit board 22, and the other end of the third conductive element is electrically connected to one end of the coil. One end of the fourth conductive element is electrically connected to the second circuit board 22, and the other end of the fourth conductive element is electrically connected to the other end of the coil.

[0076] The contactor provided in this embodiment includes a circuit board assembly 2, which includes two circuit boards, namely a first circuit board 21 and a second circuit board 22. Compared with the contactor in the prior art that uses a single circuit board, the contactor provided in this embodiment increases the area of ​​the circuit board. This not only ensures the area of ​​the circuit board assembly 2 and provides more installation space to meet the performance requirements such as increased current carrying capacity of the contactor, but also increases the heat dissipation area and the heat exchange area with the outside of the circuit board, which is beneficial to meeting the heat dissipation requirements of the circuit board.

[0077] In addition, the circuit board assembly 2 includes a first circuit board 21 and a second circuit board 22. Compared with the use of a single circuit board in the prior art, the two circuit boards can be arranged separately, which helps to make reasonable use of the space in the cavity. They can also be designed separately to reduce the temperature rise of the circuit board assembly 2.

[0078] In addition to the above, in the embodiments provided in this application, the first circuit board and the second circuit board can be connected in series or in parallel according to actual needs, so as to improve the applicability of the contactor.

[0079] As an example, such as Figure 1 and Figure 2 As shown, the receiving cavity has a cuboid structure and has an adjacent first cavity wall 11 and a second cavity wall 12.

[0080] The first circuit board 21 is disposed parallel to the first cavity wall 11, and the second circuit board 22 is disposed parallel to the second cavity wall 12.

[0081] In other words, the first circuit board 21 is parallel to the first cavity wall 11 and is positioned close to the first cavity wall 11. The second circuit board 22 is parallel to the second cavity wall 12 and is positioned close to the second cavity wall 12. This indicates that the first circuit board 21 and the second circuit board 22 are perpendicular.

[0082] Thus, the first circuit board 21 is arranged parallel to the first cavity wall 11, which facilitates the faster conduction of heat generated by the components on the first circuit board 21 to the first cavity wall 11, and then dissipates it into the surrounding environment through the first cavity wall 11. This helps to control the temperature rise of the first circuit board 21, effectively reduce the operating temperature of the first circuit board 21, and improve the reliability and lifespan of the contactor.

[0083] The second circuit board 22 is arranged parallel to the second cavity wall 12, which facilitates the faster conduction of heat generated by the components on the second circuit board 22 to the second cavity wall 12, and then dissipates it into the surrounding environment through the second cavity wall 12. This helps to control the temperature rise of the second circuit board 22, effectively reduce the operating temperature of the second circuit board 22, and improve the reliability and lifespan of the contactor.

[0084] Moreover, it can make full use of the space that houses the cavity, thereby improving the compactness and integration of the contactor.

[0085] In one possible implementation, refer to Figure 1 and Figure 2As shown, a limiting post 13 is provided inside the accommodating cavity. The limiting post 13 has a first end and a second end that are disposed opposite to each other. The first end is disposed at the closed end, and the second end extends towards the open end. A limiting space is formed between the limiting post 13 and the second cavity wall 12, and the second circuit board 22 is inserted into the limiting space.

[0086] In this case, during the actual installation, the second circuit board 22 can be installed simply by inserting it into the limiting space. There is no need to use bolts, rivets, etc., which can be done in one step, simplifying the structure and reducing assembly steps.

[0087] Meanwhile, the second circuit board 22 is inserted into the limiting space and can be disassembled under certain conditions to repair or replace the second circuit board 22 and the base 1 respectively, which can reduce maintenance costs.

[0088] To enhance the stability of the second circuit board 22 mounted on the base 1, two limiting posts 13 can be provided. These two limiting posts 13 can be respectively located at both ends of the length direction of the second circuit board 22.

[0089] Additionally, it should be noted that the limiting post 13 can be fixedly installed on the base 1 by welding or bonding. Of course, the base 1 and the limiting post 13 provided in this embodiment can also be integrally formed, that is, the limiting post 13 is formed together when the base 1 is being manufactured.

[0090] The limiting post 13 can be a strip structure, and the size of the limiting post 13 is not specifically limited here.

[0091] When the cover is placed on the base 1, the cover can apply a force close to the base 1 to the second circuit board 22 to ensure the second circuit board 22 is securely placed in the housing.

[0092] As an alternative, the limiting post 13 is provided with a guide surface on the side near the second cavity wall 12, and the guide surface is located at the second end. Along the direction from the second end to the first end, the guide surface is inclined to the limiting space, so that the side of the limiting space near the opening end of the receiving cavity is larger.

[0093] In this case, during the insertion of the second circuit board 22 into the limiting space, the guide surface serves two purposes: firstly, it guides the second circuit board 22 to be inserted between the two limiting posts 13 and the second cavity wall 12, facilitating the installation of the second circuit board 22; secondly, it prevents the second end from scratching the second circuit board 22, thus avoiding damage to the second circuit board 22.

[0094] In some embodiments, the second cavity wall 12 is provided with a protrusion 121 protruding into the limiting space, such as... Figure 2 As shown, a limiting space is formed between the protrusion 121 and the limiting post 13.

[0095] At this time, when the second circuit board 22 is placed in the limiting space, the two surfaces of the second circuit board 22 are respectively in limiting contact with the protrusion 121 and the limiting post 13, so that there is a gap between the second circuit board 22 and the second cavity wall 12. This gap can form an air flow channel, which can guide air to fully contact the second circuit board 22 and quickly remove the heat of the second circuit board 22.

[0096] In practice, the protrusion 121 can be positioned opposite to the limiting post 13, such as... Figure 2 As shown, one limiting post 13 corresponds to one protrusion 121. Of course, the protrusion 121 can also be offset from the limiting post 13, which is not specifically limited here.

[0097] The protrusion 121 can be fixed to the second cavity wall 12 by welding, bonding or snap-fitting. Of course, the base 1 and the protrusion 121 provided in this application embodiment can also be integrally formed, that is, the protrusion 121 is formed together when the base 1 is processed.

[0098] In one possible implementation, such as Figure 1 As shown, among the plurality of conductive elements 3 electrically connected to the second circuit board 22, at least some of the conductive elements 3 have one end passing through the limiting post 13 and then electrically connected to the second circuit board 22.

[0099] Thus, the limiting post 13 can support and limit the conductive component 3, thereby limiting the position of the conductive component 3. At the same time, it can improve the stability of the electrical connection between the conductive component 3 and the second circuit board 22.

[0100] In the embodiments provided in this application, when the number of conductive elements 3 is four and the number of coils is one, wherein two conductive elements 3 are used to electrically connect the first circuit board 21 and the second circuit board 22, and the other two conductive elements 3 are used to electrically connect the second circuit board 22 and the coil, the number of conductive elements 3 electrically connected to the second circuit board 22 is four. Figure 1 As shown, one end of each of the three conductive elements 3 passes through the limiting post 13 and is electrically connected to the second circuit board 22.

[0101] In a specific implementation, a through hole corresponding to the conductive element 3 can be provided on the limiting post 13 so that one end of the conductive element 3 that is electrically connected to the second circuit board 22 passes through the limiting post 13 through the through hole.

[0102] The conductive element 3 can be a wire, as shown in the embodiments provided in this application, such as... Figure 1 As shown, conductive element 3 is an L-shaped conductive sheet.

[0103] The L-shaped conductive sheet has a first connecting portion and a second connecting portion. The end of the first connecting portion away from the second connecting portion can be electrically connected to the first circuit board 21, and the end of the second connecting portion away from the first connecting portion can be electrically connected to the second circuit board 22. Furthermore, in the embodiments provided in this application, the first connecting portion can be perpendicular to the first circuit board 21, and the second connecting portion can be perpendicular to the second circuit board 22.

[0104] Thus, on the one hand, the L-shaped conductive sheet can adapt to the structure of the cavity, make reasonable use of space, and improve the compactness of the contactor.

[0105] On the other hand, compared with wires, the L-shaped conductive sheet has a larger contact area with the first circuit board 21 and the second circuit board 22, which facilitates connection and ensures the stability of electrical connection while reducing contact resistance.

[0106] Furthermore, L-shaped conductive sheets are relatively rigid and have inherent structural support. They are not easily bent or drooped in a free state, maintaining a fixed shape and occupying a relatively fixed amount of space, thus preventing them from becoming messy or disorderly.

[0107] In addition, the L-shaped conductive sheet can also provide a certain supporting force to the second circuit board 22, thereby improving the stability of the second circuit board 22 within the limiting space.

[0108] In practice, the electrical connection between the conductive component 3 and the first circuit board 21 can be a plug-in or snap-fit ​​connection, but it is not limited to these methods.

[0109] Similarly, the electrical connection between the conductive element 3 and the second circuit board 22 can be a plug-in or snap-fit ​​connection, etc., but it is not limited to these in practice.

[0110] In some embodiments, the first circuit board 21 and / or the second circuit board 22 are provided with soldering holes for mating with the conductive element 3.

[0111] At this time, the conductive component 3 is soldered to the first circuit board 21 or the second circuit board 22, which can improve the stability of the electrical connection between the conductive component 3 and the first circuit board 21, and between the conductive component 3 and the second circuit board 22. Simultaneously, the soldering holes facilitate the matching and installation of the conductive component 3 with the first circuit board 21 or the second circuit board 22, thereby improving installation efficiency.

[0112] In specific implementation, soldering holes may be provided only on the first circuit board 21, or only on the second circuit board 22, or on both the first circuit board 21 and the second circuit board 22. No limitation is made here, and the specific implementation shall prevail.

[0113] Furthermore, please combine Figure 3 and Figure 4As shown, the first circuit board 21 is provided with a slot 211, and the coil frame 4 of the contactor is provided with a buckle 41 that cooperates with the slot 211, so that the first circuit board 21 is snapped onto the coil frame 4.

[0114] When the clip 41 engages with the slot 211, the first circuit board 21 is snapped onto the coil frame 4. This snap-fitting of the first circuit board 21 onto the coil frame 4 is simple and quick, requiring no bolts or rivets, allowing for a one-step assembly and reducing assembly steps. Furthermore, under certain conditions, the first circuit board 21 can be disassembled from the coil frame 4 for repair or replacement, reducing maintenance costs.

[0115] The number of clips 41 can be multiple; for example, the number of clips 41 can be two, three, four, or more.

[0116] In the embodiments provided in this application, such as Figure 3 As shown, there are four clips 41.

[0117] The number of card slots 211 is the same as the number of clips 41, and they correspond one-to-one. Accordingly, in the embodiment provided in this application, the number of card slots 211 is also four, such as... Figure 4 As shown.

[0118] In practice, the clip 41 can be mounted on the coil frame 4 by welding, snap-fitting, or threaded connection. Of course, the clip 41 can also be integrally formed with the coil frame 4.

[0119] As an optional approach, such as Figure 3 As shown, the coil frame 4 is also provided with a boss 42, and the first circuit board 21 is provided with a through hole 212 that mates with the boss 42, such as... Figure 4 As shown.

[0120] Thus, the protrusion 42 and the through hole 212 facilitate the positioning and matching of the first circuit board 21 with the coil frame 4, preventing the first circuit board 21 from being installed in reverse or incorrectly. At the same time, when the protrusion 42 extends into the through hole 212, it can improve the stability of the first circuit board 21 on the coil frame 4.

[0121] The number of bosses 42 can be multiple. For example, the number of bosses 42 can be two, three or more.

[0122] In the embodiments provided in this application, such as Figure 3 As shown, there are four bosses 42.

[0123] The number of through holes 212 is the same as the number of bosses 42, and they correspond one-to-one. Accordingly, in the embodiment provided in this application, the number of through holes 212 is also four, such as... Figure 4 As shown.

[0124] In practice, the boss 42 can be mounted on the coil frame 4 by welding, snap-fitting, or threaded connection. Of course, the boss 42 can also be integrally formed with the coil frame 4.

[0125] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other spacers; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

Claims

1. A contactor, characterized in that, include: The base has a receiving cavity; A circuit board assembly is disposed within the receiving cavity; the circuit board assembly includes a first circuit board and a second circuit board. A plurality of conductive elements, wherein at least two of the conductive elements are electrically connected at one end to the first circuit board and at the other end of the at least two conductive elements are electrically connected to the second circuit board; One end of at least two of the remaining conductive elements is electrically connected to the circuit board assembly, and the other end of the remaining at least two conductive elements is electrically connected to the end of the coil of the contactor.

2. The contactor according to claim 1, characterized in that, The receiving cavity has an adjacent first cavity wall and a second cavity wall; the first circuit board is arranged parallel to the first cavity wall and the second circuit board is arranged parallel to the second cavity wall.

3. The contactor according to claim 2, characterized in that, The receiving cavity has an open end and a closed end that are arranged opposite to each other; A limiting post is provided in the accommodating cavity. The limiting post has a first end and a second end that are disposed opposite to each other. The first end is disposed at the closed end, and the second end extends toward the open end. A limiting space is formed between the limiting post and the second cavity wall, and the second circuit board is inserted into the limiting space.

4. The contactor according to claim 3, characterized in that, The limiting post has a guide surface on the side near the second cavity wall, and the guide surface is located at the second end; the guide surface is inclined to the limiting space along the direction from the second end to the first end.

5. The contactor according to claim 3, characterized in that, The second cavity wall is provided with a protrusion that protrudes into the limiting space, and the limiting space is formed between the protrusion and the limiting post.

6. The contactor according to claim 3, characterized in that, In the plurality of conductive elements electrically connected to the second circuit board, at least some of the conductive elements have one end passing through the limiting post and then electrically connected to the second circuit board.

7. The contactor according to claim 1, characterized in that, The conductive element is an L-shaped conductive sheet.

8. The contactor according to claim 1, characterized in that, The first circuit board and / or the second circuit board are provided with soldering holes for mating with the conductive component.

9. The contactor according to claim 1, characterized in that, The first circuit board is provided with a slot; the coil frame of the contactor is provided with a buckle that cooperates with the slot, so that the first circuit board is snapped onto the coil frame.

10. The contactor according to claim 9, characterized in that, The coil frame is also provided with a boss, and the first circuit board is provided with a through hole that mates with the boss.

Images