A functional component for adapting a relay socket and a relay socket.

Abstract

A functional component and relay socket adapted for use with a relay socket include a base, a circuit board, and at least one electrical connector. The base has a slot; the circuit board is inserted into the slot, and a solder pad is provided on one side of the circuit board in the thickness direction; the electrical connector is fixedly inserted into the base and located on the side of the circuit board where the solder pad is located. The key feature is that the portion of the electrical connector opposite the solder pad has an elastic part extending inclined towards the solder pad, and the elastic part partially contacts the solder pad to achieve pre-positioning, facilitating subsequent soldering and fixing to achieve a stable electrical connection. This invention ensures the stability of the fit during the soldering process without external force assistance, effectively reducing the risk of cold solder joints, improving the reliability of electrical connections, and simplifying assembly procedures while increasing production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of error compensation, and in particular to a functional component and a relay socket adapted to a relay socket. Background Technology

[0002] In electrical control systems, relay sockets need to perform specific functions through various functional modules. Common types include protective modules for protecting coils and eliminating reverse current, and indicator modules (including LED light-emitting elements and driving circuits) for displaying power on / off status, fault status, etc. These modules must be stably assembled with relay sockets to ensure overall operational reliability.

[0003] For both the reverse current elimination module and the indicator light module, please refer to [link / reference]. Figures 1-4 Its core assembly structure includes a base 1, a PCB circuit board 2, and a clamping spring 3 for electrical connection: the protection module relies on the clamping spring 3 to realize the current protection path between the PCB circuit board 2 and the base 1, while the indicator light module establishes the power supply or signal connection between the light-emitting element on the PCB circuit board 2 and the base 1 through the clamping spring 3. The connection stability between the clamping spring 3 and the pad on the PCB circuit board 2 directly determines the effectiveness of the module function.

[0004] In the existing technology, both the clamping spring 3 of the functional module and the PCB circuit board 2 adopt a flat-mount design, with the clamping spring 3 and the solder pads on the PCB circuit board 2 in a planar contact state. During soldering and fixing, since the clamping spring 3 lacks an independent elastic support and positioning structure, external tooling or manual pressure is required to fix the clamping spring 3 to ensure a tight fit. This operation not only increases the assembly process, but also easily leads to poor soldering or insufficient solder wetting due to uneven external force or clamping spring displacement. Utility Model Content

[0005] The main purpose of this utility model is to overcome the shortcomings of existing functional modules with flat-fit design of spring clips and PCB boards, which are prone to poor soldering or contact and have low assembly efficiency. It proposes a functional component and relay socket that are compatible with relay sockets. It can ensure the stability of the fit during the welding process without the need for external force assistance, effectively reduce the risk of poor soldering, improve the reliability of electrical connection, and at the same time simplify the assembly process and improve production efficiency.

[0006] The present invention adopts the following technical solution:

[0007] A functional component for adapting a relay socket includes a base, a circuit board, and at least one electrical connector. The base has a slot. The circuit board is inserted into the slot, and a pad is provided on one side of the circuit board in the thickness direction. The electrical connector is fixedly inserted through the base and located on the side of the circuit board where the pad is located. The portion of the electrical connector opposite to the pad has an elastic part that extends inclined toward the pad. The elastic part partially contacts the pad to achieve pre-positioning, which facilitates subsequent soldering and fixing to achieve a stable electrical connection.

[0008] The end of the part of the elastic part that is opposite to the pad is also provided with a bent section. The bent section extends at an angle away from the pad, and the transition part formed by the bent section and the main body of the elastic part contacts the pad.

[0009] The base is provided with a support part, and a slot is formed on the support part; the electrical connector is fixedly inserted through the support part and is provided with a plug-in part, which is located on the side of the support part opposite to the slot to be plugged into and cooperate with the relay socket, and the elastic part is located on the side of the support part where the slot is located.

[0010] The base has a through-hole that runs along its height for the power supply connector to pass through; the side of the base corresponding to the side where the solder pads of the circuit board are located also has a stop extending along the height direction, and on the side of the stop opposite to the solder pads, there is a clearance groove at the position of the corresponding through-hole, and the clearance groove connects to the through-hole to allow the elastic part to pass.

[0011] The base is also provided with clamping blocks extending along the height direction. The clamping blocks and the stop are spaced apart relative to each other along the width direction of the base to form slots. The circuit board is fitted into the slot to achieve limiting and fixing of the circuit board in its thickness direction.

[0012] The end of the circuit board that is inserted into the slot has a notch that extends through the thickness of the circuit board and along the height of the base. The slot has a positioning block at the position corresponding to the notch. The positioning block extends along the width of the base and passes through the notch to position the circuit board.

[0013] The circuit board has two pads located on both sides of the notch along the length of the base; it also includes two electrical connectors that pass through the base and are located on both sides of the positioning block along the length of the base.

[0014] It also includes a housing, and the base has at least one first buckle on each side in the width direction. The housing has a second buckle at the position corresponding to the first buckle. The housing and the base are detachably fixed by the snap-fit ​​between the first buckle and the second buckle.

[0015] A relay socket includes a socket body with an insertion slot and at least one terminal block inside the insertion slot. The socket body also includes a functional component adapted to the relay socket. The functional component is detachably inserted into the insertion slot. The electrical connector of the functional component, away from the elastic part, is inserted into the terminal block to achieve an electrical connection.

[0016] The base has a protrusion extending outward along the width or length of the base on the side facing away from the circuit board; the insertion slot is close to the relay insertion position of the socket body, the top of the insertion slot has a first opening, and the side of the insertion slot opposite to the protrusion has a second opening; the socket body has a positioning groove extending toward the relay insertion position at the bottom edge of the second opening for the protrusion to be inserted for positioning.

[0017] As can be seen from the above description of this utility model, compared with the prior art, this utility model has the following beneficial effects:

[0018] 1. In this utility model, the electrical connector and the circuit board are pre-positioned and matched with the pads through the elastic part, so that stable bonding can be achieved without additional tooling or external force pressing, which effectively ensures the alignment accuracy in the subsequent welding process, reduces defects such as cold solder joints and uneven solder wetting, and improves welding reliability.

[0019] 2. In this utility model, the elastic part is provided with a bending section and adopts a partial contact structure to avoid the end of the electrical connector directly pressing against the solder pad, reducing the wear on the solder pad. At the same time, the contact area is reduced, which is conducive to the uniform penetration of solder in the contact gap, forming a firm and uniform solder joint, and further improving the connection reliability.

[0020] 3. In this utility model, the insertion hole and the clearance groove provided on the base provide sufficient deformation space for the elastic part, avoiding interference between the elastic part and the hole wall of the base during the deformation process, ensuring that it can smoothly tilt and extend and maintain stable contact, thereby improving assembly adaptability and structural durability.

[0021] 4. In this utility model, the circuit board is positioned by the transition fit of the slot and the double limiting structure of the positioning block through the notch, which effectively restricts the movement of the circuit board in the thickness and length directions, keeps its relative position with the elastic part of the electrical connector stable, and provides a reliable position reference for the welding process.

[0022] 5. In this utility model, the functional components are guided and limited by the cooperation of the protrusion and the positioning groove of the socket body, which makes the insertion process convenient and the assembly accuracy high; at the same time, combined with the pressing and limiting after the relay is installed, a dual fixing structure of groove limiting and mechanical pressing is formed, which significantly improves the vibration resistance of the overall structure and prevents the components from loosening during use. Attached Figure Description

[0023] Figure 1 This is a diagram of the internal structure of the existing functional modules;

[0024] Figure 2 for Figure 1 PCB board structure diagram;

[0025] Figure 3 for Figure 1 Diagram of the clip spring structure in the image;

[0026] Figure 4 for Figure 1 The base structure diagram in the middle;

[0027] Figure 5 The structure of this utility model Figure 1 ;

[0028] Figure 6 The structure of this utility model Figure 2 ;

[0029] Figure 7 This is a schematic diagram of the circuit board structure of this utility model;

[0030] Figure 8 This is a structural diagram of the base of this utility model;

[0031] Figure 9 This is a structural diagram of the electrical connector of this utility model;

[0032] Figure 10 Diagram showing the mating of the electrical connector and the base;

[0033] Figure 11 Diagram showing the mating of the elastic part and the pad;

[0034] Figure 12 This is an overall drawing of the present utility model;

[0035] Figure 13 This is a schematic diagram of functional components being inserted into the base.

[0036] in:

[0037] 10. Base; 11. Slot; 12. Support; 12a. Protrusion; 13. Plug-in hole; 14. Plug-in hole; 15. Stop; 16. Relief groove; 17. Clamping block; 18. Positioning block; 19. First snap-fit; 20. Circuit board; 21. Solder pad; 22. Notch; 30. Electrical connector; 31. Elastic part; 32. Bending section; 33. Plug-in part; 40. Housing; 41. Second snap-fit; 50. Socket body; 511. Relay insertion position; 512. Positioning groove; 52. Insertion slot; 54. Relay; 521. First opening; 522. Second opening.

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Detailed Implementation

[0039] The present invention will be further described below through specific embodiments.

[0040] See Figures 5-13A functional component adapted to a relay socket includes a base 10, a circuit board 20, and at least one electrical connector 30. The base 10 has a slot 11 for mounting the circuit board 20. The circuit board 20 is detachably inserted into the slot 11, and a pad 21 for electrical connection is provided on one side of the circuit board 20 in the thickness direction. The electrical connector 30 is fixedly inserted into the base 10 and is located on the side of the circuit board 20 where the pad 21 is located. The portion of the electrical connector 30 opposite to the pad 21 has an elastic portion 31 extending inclined towards the pad 21. After the circuit board 20 is inserted into place, the elastic portion 31 partially contacts the pad 21, thereby achieving a pre-positioning of the electrical connector 30 and the circuit board 20. This pre-positioning state allows the pad 21 and the elastic portion 31 to remain stably fitted without the need for additional tooling or external force, facilitating subsequent soldering and fixing to achieve a stable electrical connection.

[0041] In this embodiment, the mating structure between the electrical connector 30 and the circuit board 20 prevents the relative positions of the solder pad 21 and the elastic part 31 from shifting during subsequent soldering processes. This reduces problems such as incomplete soldering and uneven solder wetting caused by displacement, ensuring soldering quality. After soldering, the elastic support of the elastic part 31 further reduces the risk of loosening, ensuring a stable electrical connection between the electrical connector 30 and the circuit board 20. Furthermore, this structure requires no additional assembly steps, simplifying the production process and adapting to the basic electrical connection requirements of relay sockets, demonstrating good versatility.

[0042] In this embodiment, the electrical connector uses a spring clip. The portion of its elastic part 31 opposite to the pad 21 has a bent section 32 located away from the base 10 and near the end. The bent section 32 extends obliquely in the direction away from the pad 21, and the transition portion formed by the bent section 32 and the main body of the elastic part 31 contacts the pad 21. This prevents the end of the electrical connector 30 from directly abutting the pad 21, reducing wear on the pad 21. At the same time, it reduces the contact area between the pad 21 and the elastic part 31, which can ensure the contact force required for pre-positioning and allow the solder to penetrate into the contact gap more easily during subsequent soldering, forming a uniform and firm solder joint and ensuring soldering reliability.

[0043] The base 10 has a support portion 12 for supporting the circuit board 20, and its top surface is directly formed with a slot 11 for inserting the circuit board 20. The electrical connector 30 is fixedly inserted into the support portion 12 by an interference fit. The end of the electrical connector 30 away from the circuit board 20 or the elastic part 31 has a plug-in portion 33, which is located on the side of the support portion 12 opposite to the slot 11, i.e., the bottom surface, and is used for plugging and mating with the relay socket. The side of the base 10 opposite to the slot 11 is also provided with a plug hole 13, which extends along the height direction of the base 10 and passes through to the plug hole 14. The plug-in portion 33 of the electrical connector 30 is fixed in the plug hole 13.

[0044] The base 10 has a through-hole 14 extending along its height direction. This through-hole 14 passes through the top and bottom surfaces of the support portion 12 to provide a channel for the electrical connector 30 to pass through. The diameter of the through-hole 14 in the width direction of the base 10 is larger than the corresponding size of the electrical connector 30, thereby reserving deformation space for the elastic portion 31 and preventing interference between the elastic portion 31 and the inner wall of the through-hole 14 when the elastic portion 31 deforms. A stop 15 extending along the height direction is also provided on the side of the base 10 corresponding to the side where the solder pads 21 of the circuit board 20 are located. The stop 15 is located near the edge on the side where the top surface of the support portion 12 is located. The dimension of the stop 15 in the height direction of the base 10 is smaller than the dimension of the elastic portion 31. On the side of the stop 15 opposite to the pad 21, a clearance groove 16 is provided at the position of the corresponding socket 14. The clearance groove 16 is connected to the socket 14. The outer dimensions of the clearance groove 16 are larger than the dimensions of the corresponding part of the electrical connector 30, so as to cooperate with the deformation space design of the socket 14 and provide space for the elastic part 31 to tilt, extend and deform.

[0045] The base 10 also includes a clamping block 17 extending along the height direction. The clamping block 17 is located on the top surface of the support portion 12. The clamping block 17 and the stop portion 15 are spaced apart relative to each other along the width direction of the base 10, forming a slot 11 for inserting the circuit board 20. The specific shape of the clamping block 17 can be flexibly set, for example, it can be C-shaped, U-shaped, or V-shaped. The circuit board 20 is fitted into the slot 11 to achieve limiting and fixing of the circuit board 20 in its thickness direction. The transition fit design facilitates the insertion of the circuit board 20 into place and effectively restricts the movement of the circuit board 20 in the thickness direction, avoiding shaking or displacement; at the same time, it can maintain the relative position stability of the circuit board 20 and the elastic portion 31 of the electrical connector 30, providing a guarantee for the alignment of subsequent soldering.

[0046] The circuit board 20 has a notch 22 at one end for insertion into the slot 11. The notch 22 extends through the thickness direction of the circuit board 20 and along the height direction of the base 10. A positioning block 18 is provided in the slot 11 corresponding to the notch 22. The positioning block 18 extends along the width direction of the base 10, extending from the stop 15 towards the clamping block 17. After the circuit board 20 is inserted into place, the positioning block 18 passes through the notch 22 to position the circuit board 20. The cooperation between the positioning block 18 and the notch 22 restricts the movement of the circuit board 20 along the length direction of the base 10, preventing it from shifting within the slot 11. Combined with the transition fit between the slot 11 and the circuit board 20, a double limiting mechanism is formed, further improving the assembly stability of the circuit board 20.

[0047] In practical applications, the number of pads 21 on the circuit board 20 can be flexibly set according to the specific circuit requirements of the relay socket functional components. Taking two pads 21 on the circuit board 20 as an example, the two pads 21 are located on both sides of the notch 22 along the length of the base 10. Corresponding to the two pads 21, two electrical connectors 30 are provided. The two electrical connectors 30 pass through the base 10 and are respectively located on both sides of the positioning block 18 along the length of the base 10, forming a one-to-one correspondence with the pads 21. To match the two electrical connectors 30, the base 10 has two through holes 14 extending along its height direction. The two through holes 14 correspond one-to-one with the two electrical connectors 30, allowing the corresponding electrical connectors 30 to pass through. At the same time, two clearance grooves 16 are also provided on the stop 15 at positions corresponding to the two through holes 14. Each clearance groove 16 is connected to the corresponding through hole 14, providing clearance and deformation space for the elastic part 31 of the corresponding electrical connector 30.

[0048] In this embodiment, a housing 40 is also included. The housing 40 covers the outside of the circuit board 20 and the base 10, providing protection for the internal structures such as the circuit board 20 and electrical connectors 30. The housing 40 and the base 10 are detachably connected. The protrusions and insertion holes on the base are exposed outside the housing 40.

[0049] The base 10 has at least one first fastening part 19 on each of its two sides in the width direction. The first fastening part 19 on one side corresponds to the outer side of the support part 12, and the first fastening part 19 on the other side corresponds to the outer side of the stop part 15. Alternatively, at least one first fastening part 19 can be provided on each of the two sides in the length direction of the base 10. A second fastening part 41 is provided on the inner side of the housing 40 at the position corresponding to the first fastening part 19. The housing 40 and the base 10 can be detachably fixed by the snap-fit ​​engagement of the first fastening part 19 and the second fastening part 41. The first fastening part 19 and the second fastening part 41 can be engaged by a combination of a protrusion and a snap-fit ​​hole.

[0050] During the assembly of this embodiment, the electrical connector 30 is first inserted from bottom to top along the height direction from the bottom surface of the support portion 12 of the base 10 and fixed by interference fit, so that the plug portion 33 is inserted into the plug hole 13 and the elastic portion 31 extends to the top surface of the support portion 12; then the circuit board 20 is inserted from top to bottom along the height direction into the slot 11 formed by the clamping block 17 and the stop portion 15, and fixed by the double limiting of the transition fit and the positioning block 18 through the notch 22, while the elastic portion 31 contacts the solder pad 21 to complete the pre-positioning; then the contact part between the elastic portion 31 and the solder pad 21 is soldered, and finally the housing 40 is aligned with the base 10 and fixed by the snap-fit ​​of the first buckle portion 19 and the second buckle portion 41, thus completing the installation.

[0051] This embodiment also proposes a relay socket, including a socket body 50, a insertion slot 52 on the socket body 50, at least one wiring terminal in the insertion slot 52, and a functional component adapted to the relay socket as described above. The functional component is detachably inserted into the insertion slot 52, and the insertion part 33 of the electrical connector 30 of the functional component away from the elastic part 31 is inserted and engaged with the wiring terminal in a one-to-one correspondence, thereby realizing the electrical connection between the functional component and the socket body 50.

[0052] Furthermore, the base 10 has a protrusion 12a extending outward along the width or length direction of the base 10 on the side facing away from the circuit board 20; the insertion slot 52 is close to the relay insertion position 511 of the socket body 50, the top of the insertion slot 52 has a first opening 521, and the side of the insertion slot 52 opposite to the protrusion 12a has a second opening 522; the socket body 50 has a positioning groove 512 extending toward the relay insertion position 511 at the bottom edge of the second opening 522. When the functional component is inserted into the insertion slot 52, the protrusion 12a on the base 10 can be correspondingly embedded in the positioning groove 512 to realize the positioning of the functional component and the socket body 50.

[0053] In this embodiment, the cooperation between the protrusion 12a and the positioning groove 512 has a dual function: when inserting the functional component, the protrusion 12a can be aligned with the positioning groove 512 and inserted, playing a guiding role to prevent the functional component from being misaligned during insertion, ensuring that the functional component is aligned and inserted in place, and providing a positional reference for the subsequent docking of the electrical connector 30 and the wiring terminal; at the same time, when the relay 54 is installed in the relay insertion position 511 of the socket body 50, the bottom of the relay 54 will press down and limit the protrusion 12a of the functional component. Combined with the limiting effect of the protrusion 12a being inserted into the positioning groove 512, a dual fixing structure of groove limiting and relay pressing is formed, which can effectively prevent the functional component from coming out of the insertion groove 52 when the product is subjected to vibration, and improve the vibration resistance stability of the overall structure.

[0054] In this utility model, the terms "first," "second," and "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. The use of terms such as "upper," "lower," "left," "right," "front," and "rear" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model, and does not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the scope of protection of this utility model. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0055] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0056] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A functional assembly for adapting a relay socket, comprising a seat, a circuit board and at least one electrical connection; the seat is provided with a slot; the circuit board is inserted into the slot, and one side of the circuit board in the thickness direction is provided with a solder pad; the electrical connection is fixedly penetrated through the seat and located on the side of the solder pad of the circuit board, characterized in that: The portion of the electrical connector opposite to the pad is provided with an elastic part that extends at an inclination toward the pad. The elastic part partially contacts the pad to achieve pre-positioning, which facilitates subsequent welding and fixing to achieve a stable electrical connection. ​ 2. The functional component for adapting a relay socket as described in claim 1, characterized in that, The end of the portion of the elastic part opposite to the pad is further provided with a bent section, which extends obliquely away from the pad, and the transition portion formed by the bent section and the main body of the elastic part contacts the pad.

3. The functional component for adapting a relay socket as described in claim 1, characterized in that, The base is provided with a support portion, and the slot is formed on the support portion; the electrical connector is fixedly inserted through the support portion and is provided with a plug-in portion, the plug-in portion is located on the side of the support portion opposite to the slot to be plugged into and cooperate with the relay socket, and the elastic portion is located on the side of the support portion where the slot is located.

4. The functional component for adapting a relay socket as described in claim 1, characterized in that, The base has a through hole extending along its height for the electrical connector to pass through; the side of the base corresponding to the side where the solder pads of the circuit board are located also has a stop extending along the height direction, and on the side of the stop opposite to the solder pads, a clearance groove is provided at the position corresponding to the through hole, and the clearance groove is connected to the through hole to allow the elastic part to pass.

5. The functional component for adapting a relay socket as described in claim 4, characterized in that, The base is also provided with a clamping block extending along the height direction. The clamping block and the stop are spaced apart relative to each other along the width direction of the base to form the slot. The circuit board is transitionally fitted with the slot to limit and fix the circuit board in its thickness direction.

6. The functional component for adapting a relay socket as described in claim 1, characterized in that, The circuit board has a notch at one end for insertion into the slot. The notch extends through the thickness direction of the circuit board and along the height direction of the base. The slot has a positioning block at the position corresponding to the notch. The positioning block extends along the width direction of the base and passes through the notch to position the circuit board.

7. The functional component for adapting a relay socket as described in claim 6, characterized in that, The circuit board is provided with two solder pads, which are located on both sides of the notch along the length of the base; it includes two electrical connectors, which pass through the base and are respectively located on both sides of the positioning block along the length of the base.

8. The functional component for adapting a relay socket as described in claim 1, characterized in that, It also includes a housing, and the base has at least one first buckle on each side in the width direction. The housing has a second buckle corresponding to the position of the first buckle. The housing and the base are detachably fixed by the snap-fit ​​between the first buckle and the second buckle.

9. A relay socket, comprising a socket body, wherein the socket body has a insertion slot, and the insertion slot has at least one terminal block, characterized in that, It also includes a functional component for adapting a relay socket according to any one of claims 1 to 8, the functional component being detachably inserted into the insertion slot, wherein the electrical connector of the functional component, away from the elastic part, is inserted into the terminal block to achieve electrical connection.

10. A relay socket as described in claim 9, characterized in that, The base has a protrusion extending outward along the width or length direction of the base on the side facing away from the circuit board; the insertion slot is close to the relay insertion position of the socket body, the top of the insertion slot has a first opening, and the side of the insertion slot opposite to the protrusion has a second opening; the socket body has a positioning groove extending toward the relay insertion position on the bottom edge of the second opening for the protrusion to be inserted and positioned.

Images