Circuit board connection structure and connection method thereof

Abstract

The application relates to the field of electric connectors, and particularly discloses a circuit board connecting structure and a connecting method thereof. The circuit board connecting structure comprises a connecting seat, one end of which is provided with a socket; a terminal connected to the connecting seat and extending into the socket; a locking seat detachably connected to one end of the connecting seat away from the socket; a limiting component arranged between the locking seat and the terminal and used for limiting the terminal away from the socket; a circuit board connected with a plug piece, the plug piece extending into the socket and being plugged with the terminal; one of the circuit board and the locking seat is provided with a clamping hole, and the other is connected with a clamping column, the opening direction of the clamping hole intersects with the opening direction of the socket, and the extension direction of the clamping column is along the thickness direction of the circuit board; and the clamping column and the clamping hole are clamped after the limiting component limits the terminal. The application has the effect of making the connection between the connecting seat of the circuit board connector and the circuit board more firm.

Description

Technical Field

[0001] This application relates to the field of electrical connectors, and in particular to a circuit board connection structure and connection method thereof. Background Technology

[0002] A circuit board connector is an electronic component used to achieve electrical connections between circuit boards and between circuit boards and other electronic components.

[0003] In existing technologies, a spring-loaded latch is typically used between the connector socket and the circuit board to prevent the connector socket from becoming loose. However, often, due to the small size of the circuit board connector itself, the spring-loaded latch between the connector socket and the circuit board is also small, resulting in poor latch stability and easy loosening between the connector socket and the circuit board. Summary of the Invention

[0004] To make the connection between the connector socket and the circuit board more secure, this application provides a circuit board connection structure and connection method thereof.

[0005] Firstly, the circuit board connection structure and connection method provided in this application adopt the following technical solution:

[0006] A circuit board connection structure and connection method thereof includes a connector with a socket at one end; a terminal connected to the connector and extending into the socket; a locking seat detachably connected to the end of the connector away from the socket; a limiting component disposed between the locking seat and the terminal for limiting the terminal from moving away from the socket; a circuit board with a tab connected thereto, the tab extending into the socket and engaging with the terminal; one of the circuit board and the locking seat has a slot, and the other has a locking post connected thereto, the opening direction of the slot intersecting the opening direction of the socket, and the extension direction of the locking post along the thickness direction of the circuit board; when the limiting component limits the terminal, the locking post and the slot engage.

[0007] By adopting the above technical solution, when workers need to connect the terminals and circuit board inserts, they connect the terminals to the connector. Then, they press the locking seat along the thickness direction of the circuit board, limiting the movement of the terminals. Next, they align the inserts with the socket and press the circuit board towards the socket, allowing the inserts and terminals to engage. Continuing to press the locking seat along the thickness direction of the circuit board, the locking post and the locking slot engage, creating a limit between the circuit board and the locking seat, preventing the inserts from disengaging from the socket and simultaneously limiting the locking seat's movement away from the socket. Thus, one engagement of the locking post and the locking slot effectively limits the movement of the circuit board and the locking seat. Because the locking post and the locking slot are less prone to deformation in directions away from or near the socket, the engagement between them is more stable, resulting in a more secure connection between the circuit board connector's connector and the circuit board.

[0008] Preferably, the locking seat includes: a cover plate covering the connecting seat; two side plates respectively connected to both sides of the cover plate, the two side plates clamping the connecting seat, and the locking pin or the locking slot being disposed on the side plates.

[0009] By adopting the above technical solution, when workers need to connect the locking seat to the connecting seat, they simply place the connecting seat between the two side plates and press down on the cover plate until the cover plate and the top of the connecting seat abut against each other, thus completing the connection between the locking seat and the connecting seat. This operation is relatively convenient, making the connection between the locking seat and the connecting seat quick and easy. Simultaneously, because the two side plates clamp the connecting seat, the connecting seat provides support to the side plates. When the locking pin or latch tends to deform towards the side plates, the connecting seat's support prevents deformation, further ensuring the robustness of the connection between the connecting seat and the circuit board.

[0010] Preferably, a terminal slot is provided at the position opposite to the connector and the cover plate, one end of the terminal slot is connected to the socket, and the other end is connected to the end of the connector; the terminal slot and the cover plate are open on the side opposite to each other, and a plug strip is fixed at the position opposite to the cover plate and the terminal slot, and the plug strip is inserted into the terminal slot.

[0011] By adopting the above technical solution, workers can move the terminal to the socket by inserting it along the terminal slot. Furthermore, the cooperation between the connector strip and the terminal slot forms a connection between the cover plate and the connector, making the connection between the locking seat and the connector more secure.

[0012] Preferably, a guide strip is fixed on one of the cover plate and the connecting seat, and a guide groove adapted to the guide strip is opened on the other, wherein the extension direction of the guide strip is along the thickness direction of the circuit board.

[0013] By adopting the above technical solution, before pressing the cover plate, the operator first engages the guide strip and guide groove, and then presses the cover plate down, ensuring that the limiting component can limit the terminal, which facilitates the operator's operation. In addition, when the operator inserts the plug-in, the engagement of the guide strip and guide groove with the circuit board pushed into the socket can also prevent the locking seat from moving away from the socket, eliminating the need for manual blocking of the locking seat's movement.

[0014] Preferably, the side plate is connected to a positioning plate, and the connecting seat is fixed with a protrusion. When the positioning plate and the protrusion abut against each other, the limiting component limits the terminal.

[0015] By adopting the above technical solution, when the staff presses the cover plate until the positioning plate and the protrusion contact, the limiting component completes the limiting, making it convenient for the staff to judge whether the cover plate is pressed in place.

[0016] Preferably, the positioning plate is provided with a groove that matches the protrusion. When the locking post and the locking slot are engaged, the protrusion and the groove are engaged and matched.

[0017] By adopting the above technical solution, the locking seat and the connecting seat are prevented from detaching through the cooperation between the protrusion and the groove, which further improves the firmness of the connection between the connecting seat and the circuit board.

[0018] Preferably, the terminal includes two opposing clamping arms that clamp the insert; an elastic portion is connected to the side of each clamping arm near the insert, and the elastic portion abuts against the insert; an elastic sheet is connected to the tail end of the elastic portion, and the end of the elastic sheet away from the elastic portion faces the wall of the socket; when the insert is inserted between the two clamping arms, the elastic sheet abuts against the wall of the socket.

[0019] By adopting the above technical solution, when the insert and the two clamping arms are engaged, the insert pushes against the elastic part, and the elastic part deforms towards the wall of the socket, thereby pressing the tail end of the elastic piece against the wall of the socket, further preventing the terminal from moving within the socket and further enhancing the reliability of the engagement between the terminal and the insert. At the same time, the elastic piece also generates a reaction force on itself, increasing the clamping force between the elastic part and the insert.

[0020] Preferably, the limiting component includes: a limiting post, one end of which is fixed to the cover plate and the other end of which extends into the terminal slot; a limiting block, which is connected to the end of the terminal away from the insert and is spaced apart from the terminal, and the limiting post is inserted between the terminal and the limiting block.

[0021] By adopting the above technical solution, when the staff presses the cover plate down, the limiting post can be pressed between the terminal and the limiting block, which facilitates the limiting connection of the terminal.

[0022] Preferably, the socket is provided with a sliding groove for guiding the terminal, and the sliding groove is connected to the terminal slot.

[0023] By adopting the above technical solution, when the operator inserts the terminal into the socket, the slide can guide the terminal and prevent the terminal from shifting, thereby ensuring a stable fit between the terminal and the insert.

[0024] On the other hand, this application discloses a connection method for a circuit board connection structure, which includes the following steps: inserting the terminal into the socket; pressing the locking seat along the thickness direction of the circuit board, so that the limiting component limits the movement of the terminal, and then stopping the pressing of the locking seat; aligning the insert with the socket, pressing the circuit board toward the socket, so that the insert and the terminal cooperate; continuing to press the locking seat along the thickness direction of the circuit board, so that the locking post and the locking slot engage.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. When the operator needs to connect the terminals and the circuit board inserts, connect the terminals to the connector. Then, press the locking seat along the thickness direction of the circuit board to limit the movement of the terminals. Next, align the inserts with the socket and press the circuit board towards the socket to engage the inserts and terminals. Continue pressing the locking seat along the thickness direction of the circuit board; the locking post and the locking slot engage, creating a limit between the circuit board and the locking seat, preventing the inserts from disengaging from the socket and limiting the locking seat's movement away from the socket. Thus, one engagement of the locking post and the locking slot effectively limits the movement of the circuit board and the locking seat. Because the locking post and the locking slot are less prone to deformation in directions away from or near the socket, the engagement between them is more stable, resulting in a more secure connection between the circuit board connector and the circuit board.

[0027] 2. Before pressing the cover plate, the operator should first align the guide strip and guide groove, and then press the cover plate down to ensure that the limiting component can limit the terminal, which facilitates the operator's operation. In addition, when the operator subsequently inserts the plug-in, the cooperation of the guide strip and guide groove can also prevent the locking seat from moving away from the plug-in, eliminating the need for manual blocking of the locking seat's movement;

[0028] 3. When the insert and the two clamping arms engage, the insert pushes against the elastic part, causing the elastic part to deform towards the wall of the socket. This causes the tail end of the elastic piece to press firmly against the wall of the socket, further preventing the terminal from moving within the socket and enhancing the reliability of the engagement between the terminal and the insert. Simultaneously, the elastic piece also generates a reaction force on itself, increasing the clamping force between the elastic part and the insert. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0031] Figure 2 This is an exploded view of the terminal and connector mating in an embodiment of this application;

[0032] Figure 3 This is an exploded view of the fit between the insert and the terminal in an embodiment of this application;

[0033] Figure 4 This is an exploded view of the bayonet and the locking pin in the embodiment of this application;

[0034] Figure 5 This is a schematic diagram of the terminal structure;

[0035] Figure 6 yes Figure 1 A cross-sectional view along the AA direction;

[0036] Figure 7 yes Figure 6 Enlarged diagram of part B.

[0037] Figure label:

[0038] 1. Connector; 11. Socket; 12. Terminal slot; 13. Slide groove; 14. Guide bar; 15. Protrusion;

[0039] 2. Terminal; 21. Clamping arm; 22. Elastic part; 23. Elastic sheet; 24. Baffle; 25. Connecting piece;

[0040] 3. Locking seat; 31. Cover plate; 311. Insertion strip; 32. Side plate; 321. Locking post; 322. Guide groove; 33. Positioning plate; 331. Groove;

[0041] 4. Limiting component; 41. Limiting post; 42. Limiting block;

[0042] 5. Circuit board; 51. Insert; 511. Insert body; 512. Conductive sheet; 52. Bayonet. Detailed Implementation

[0043] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0045] Reference Figure 1-3 This application discloses an embodiment of a circuit board 5 connection structure, which includes a connector 1, a terminal 2, a locking seat 3, a limiting component 4, and a circuit board 5. One end of the connector 1 has a socket 11, and the terminal 2 is connected to the connector 1 and extends into the socket 11. The locking seat 3 is detachably connected to the end of the connector 1 away from the socket 11. The limiting component 4 is disposed between the locking seat 3 and the terminal 2 to limit the terminal 2 from moving away from the socket 11. The circuit board 5 is connected to a tab 51, which extends into the socket 11 and engages with the terminal 2. One of the circuit board 5 and the locking seat 3 has a slot 52, and the other has a locking post 321 connected to it. The opening direction of the slot 52 intersects the opening direction of the socket 11, and the extension direction of the locking post 321 is along the thickness direction of the circuit board 5. When the limiting component 4 limits the terminal 2, the locking post 321 and the slot 52 engage.

[0046] In a preferred embodiment of this application, the insert 51 includes an insert body 511 and a conductive sheet 512. The insert body 511 and the circuit board 5 are integrally formed, and the insert body 511 is located in the middle of the circuit board 5. The conductive sheet 512 is disposed on the surface of the insert body 511, and the terminal 2 is in contact with the conductive sheet 512. A mounting groove is formed between the circuit board 5 and the insert 51, and the connector 1 extends into the mounting groove. Preferably, the opening direction of the bayonet 52 is perpendicular to the opening direction of the socket 11.

[0047] In a preferred embodiment of this application, the bayonet 52 is formed on the circuit board 5, and the locking post 321 is integrally formed on the locking seat 3. Specifically, the bayonet 52 is a semi-circular opening, and the locking post 321 is a matching semi-cylindrical shape. In other embodiments, the bayonet 52 may also be formed on the locking seat 3, and the locking post 321 may be disposed on the circuit board 5. Furthermore, the bayonet 52 may also be a rectangular, triangular, or other shaped opening, and the locking post 321 may be adapted to the shape of the bayonet 52.

[0048] First, a general overview of the assembly of the circuit board 5 connection structure is provided. It generally consists of three steps: 1. Connection between terminal 2 and connector 1; 2. Connection between insert 51 and terminal 2; 3. Engagement between locking post 321 and locking slot 52. For convenience, [the following steps are described in detail]. Figure 2 The direction defined in the middle is used as a reference. The thickness direction of the circuit board 5 is defined as the up and down direction. The opening direction of the socket 11 is defined as the front and back direction. The direction facing the top of the connector 1 is up, and the opening direction of the socket 11 is defined as front.

[0049] Reference Figure 2 First, the operator inserts terminal 2 from the rear end of connector 1 and pushes terminal 2 forward until it is inside socket 11. Then, the locking seat 3 is pressed down to limit the terminal 2 by the limiting component 4, thus completing the connection between terminal 2 and connector 1.

[0050] Reference Figure 3 and Figure 4 The operator uses their hand to restrict the backward movement of the locking seat 3, aligns the insert 51 with the socket 11, and presses the circuit board 5 towards the socket 11 to make the insert 51 and the terminal 2 engage. After the insert 51 and the terminal 2 engage, the bayonet 52 is located below the locking post 321.

[0051] Reference Figure 1 and Figure 4 After the terminal 2 and the insert 51 are properly engaged, the operator continues to press down on the locking seat 3 to make the bayonet 52 and the locking post 321 snap together. This completes the assembly of the circuit board 5 connection structure, as shown in the image. Figure 1 As shown.

[0052] Next, we will provide a detailed introduction to each part of the connection structure of circuit board 5.

[0053] Reference Figure 2 The connector 1 has a terminal slot 12 at its rear end and a socket 11 at its front end, with the terminal slot 12 and socket 11 communicating with each other. Typically, one terminal 2 connects to one wire, but a circuit board 5 connection structure requires multiple wires. Therefore, in a preferred embodiment of this application, multiple terminal slots 12 are spaced apart, and all of these terminal slots 12 communicate with the socket 11. The operator pushes the terminal 2 forward from the terminal slot 12 until it reaches the appropriate position within the socket 11.

[0054] Furthermore, refer to Figure 2 The socket 11 is provided with a sliding groove 13 for guiding the terminal 2, and the sliding groove 13 is connected to the terminal slot 12. With this configuration, when the operator inserts the terminal 2 into the socket 11, the sliding groove 13 can guide the terminal 2 and prevent the terminal 2 from shifting, thereby ensuring a stable fit between the terminal 2 and the insert 51.

[0055] Reference Figure 5 Terminal 2 includes two opposing clamping arms 21 that clamp the insert 51. An elastic portion 22 is connected to the side of each clamping arm 21 near the insert 51, and the elastic portion 22 abuts against the insert 51. An elastic piece 23 is connected to the tail end of the elastic portion 22, with the end of the elastic piece 23 away from the elastic portion 22 facing the wall of the socket 11. When the insert 51 is inserted between the two clamping arms 21, the elastic piece 23 presses firmly against the wall of the socket 11.

[0056] Reference Figure 6 When the insert 51 and the two clamping arms 21 engage, the insert 51 pushes against the elastic part 22, causing the elastic part 22 to deform towards the wall of the socket 11. This causes the tail end of the elastic piece 23 to press against the wall of the socket 11, further preventing the terminal 2 from moving within the socket 11 and enhancing the reliability of the engagement between the terminal 2 and the insert 51. Simultaneously, the elastic piece 23 also generates a reaction force, increasing the clamping force between the elastic part 22 and the insert 51.

[0057] Furthermore, terminal 2 needs to be pushed forward from the rear end of connector 1, therefore, the forward pushing of terminal 2 needs to be limited. To solve this problem, refer to... Figure 6 and Figure 7 A baffle 24 is integrally formed at the rear end of the upper clamping arm 21. When the baffle 24 abuts against the connecting seat 1, the terminal 2 is pushed forward to the limit position.

[0058] Reference Figure 2 The locking seat 3 includes a cover plate 31 and two side plates 32. The cover plate 31 covers the connecting seat 1, and the two side plates 32 are respectively connected to both sides of the cover plate 31, clamping the connecting seat 1. A locking post 321 is disposed on the side plate 32. The locking post 321 is disposed on the upper part of the side plate 32 to ensure that the locking post 321 does not interfere with the circuit board 5 when the operator inserts the insert 51. In a preferred embodiment of this application, the cover plate 31 and the two side plates 32 are integrally formed. In other embodiments, the side plates 32 can also be glued to the cover plate 31.

[0059] When the operator needs to connect the locking seat 3 to the connecting seat 1, the connecting seat 1 is placed between the two side plates 32, and the cover plate 31 is pressed down until the top of the cover plate 31 and the connecting seat 1 abuts, thus completing the connection between the locking seat 3 and the connecting seat 1. The operation is relatively convenient, making the connection between the locking seat 3 and the connecting seat 1 quick and easy. At the same time, since the two side plates 32 clamp the connecting seat 1, the connecting seat 1 provides support to the side plates 32. When the locking pin 321 or the locking slot 52 tends to deform towards the side plates 32, the connecting seat 1 provides support to the side plates 32, making it difficult for the locking pin 321 or the locking slot 52 to deform, further ensuring the firmness of the connection between the connecting seat 1 and the circuit board 5.

[0060] Furthermore, refer to Figure 2 The terminal slot 12 and the cover plate 31 have an opening on opposite sides. A connector strip 311 is fixed at the position opposite the cover plate 31 and the terminal slot 12, and the connector strip 311 is inserted into the terminal slot 12. Through the cooperation between the connector strip 311 and the terminal slot 12, a connection is formed between the cover plate 31 and the connecting seat 1, making the connection between the locking seat 3 and the connecting seat 1 more secure.

[0061] Furthermore, refer to Figure 2 A guide strip 14 is fixed to one of the cover plate 31 and the connecting seat 1, and a guide groove 322 adapted to the guide strip 14 is opened on the other. The extension direction of the guide strip 14 is along the thickness direction of the circuit board 5. In a preferred embodiment of this application, the guide strip 14 is integrally formed on the side wall of the connecting seat 1, and the guide groove 322 is opened on the side plate 32. Before the operator presses the cover plate 31, the guide strip 14 and the guide groove 322 are engaged, and then the cover plate 31 is pressed down to ensure that the limiting component 4 can limit the terminal 2, which facilitates the operator's operation. In addition, when the operator inserts the plug 51, the circuit board 5 is pushed into the socket 11. The engagement of the guide strip 14 and the guide groove 322 can also prevent the locking seat 3 from moving away from the socket 11, without the need for manual blocking of the locking seat 3 from moving backward.

[0062] Furthermore, refer to Figure 3 The side plate 32 is connected to a positioning plate 33, and the connecting seat 1 is fixed with a protrusion 15. When the positioning plate 33 and the protrusion 15 contact, the limiting component 4 limits the terminal 2. At this time, the locking post 321 is located above the circuit board 5 and will not interfere with the pressing of the circuit board 5. When the operator presses the cover plate 31 until the positioning plate 33 and the protrusion 15 contact, the limiting component 4 completes the limiting, making it easier for the operator to judge whether the pressing of the cover plate 31 is in place, thus improving the operator's operating efficiency.

[0063] Furthermore, refer to Figure 2 and Figure 4 The positioning plate 33 is provided with a groove 331 that matches the protrusion 15. After the locking post 321 and the locking slot 52 are engaged, the protrusion 15 and the groove 331 are engaged and matched. The cooperation between the protrusion 15 and the groove 331 prevents the locking seat 3 and the connecting seat 1 from falling off, further improving the firmness of the connection between the connecting seat 1 and the circuit board 5. It can be seen that the protrusion 15 plays both the positioning role and the locking role, improving the overall compactness of the connection structure of the circuit board 5.

[0064] Reference Figure 6The limiting component 4 includes a limiting post 41 and a limiting block 42. One end of the limiting post 41 is fixed to the cover plate 31, and the other end extends into the terminal slot 12. The limiting post 41 is arranged in the vertical direction. The limiting block 42 is connected to the rear end of the terminal 2 and is spaced apart from the terminal 2. The limiting post 41 is inserted between the terminal 2 and the limiting block 42. The terminal 2 and the limiting block 42 are connected by a connecting piece 25, and the limiting block 42, the connecting piece 25 and the terminal 2 are integrally formed.

[0065] When the operator presses the cover plate 31 downwards, the limiting post 41 is pressed between the terminal 2 and the limiting block 42, thereby restricting the movement of the terminal 2 in the front and back directions and facilitating the limiting between the terminal 2 and the connecting seat 1.

[0066] Based on the above-described circuit board 5 connection structure, this application also discloses a connection method for the circuit board 5 connection structure, including the following steps:

[0067] S1. Insert terminal 2 into socket 11.

[0068] S2. Press the locking seat 3 along the thickness direction of the circuit board 5 to limit the movement of the terminal 2 by the limiting component 4, and then stop pressing the locking seat 3.

[0069] S3. Align the insert 51 with the socket 11 and press the circuit board 5 toward the socket 11 to make the insert 51 and the terminal 2 fit together.

[0070] S4. Continue pressing the locking seat 3 along the thickness direction of the circuit board 5 to make the locking post 321 and the locking slot 52 engage and complete the engagement.

[0071] by Figure 2 Taking the disclosed embodiment as an example, for step S1, the operator inserts terminal 2 from the rear end of connector 1 and pushes terminal 2 forward until terminal 2 is located inside socket 11. For step S2, the operator aligns guide strip 14 with guide groove 322 and presses down locking seat 3, so that the lower end of positioning plate 33 abuts against protrusion 15, so that limiting component 4 limits terminal 2, and stops pressing locking seat 3, thus completing the connection between terminal 2 and connector 1.

[0072] by Figure 3 and Figure 4 Taking the disclosed embodiment as an example, in step S3, the worker aligns the insert 51 with the socket 11 and presses the circuit board 5 toward the socket 11 so that the insert 51 and the terminal 2 are engaged, and the bayonet 52 is located directly below the bayonet 321.

[0073] by Figure 2 and Figure 4Taking the disclosed embodiment as an example, in step 4, the worker presses down on the locking seat 3. After the protrusion 15 and the groove 331 are engaged, the bayonet 52 and the locking post 321 are engaged.

[0074] Finally, it should be noted that when workers need to disassemble the connection between connector 1 and circuit board 5, they only need to push the locking seat 3 to disengage the protrusion 15 from the groove 331, and then continue pushing until the locking seat 3 disengages from connector 1. This releases the limiting forces between circuit board 5 and connector 1, and also releases the limiting forces between terminal 2 and connector 1, allowing for the removal of terminal 2 and circuit board 5. Disassembly of the entire circuit board 5 connection structure can be completed simply by releasing the connection between locking seat 3 and connector 1, greatly improving the efficiency of disassembly.

[0075] The implementation principle of an outdoor refrigerator fan combination unit according to an embodiment of this application is as follows: When the operator needs to connect the terminal 2 and the insert 51 of the circuit board 5, the terminal 2 is connected to the connector 1. Then, the locking seat 3 is pressed down, causing the lower end of the positioning plate 33 and the protrusion 15 to disengage, and the limiting component 4 limits the movement of the terminal 2, thus restricting the movement of the terminal 2. Then, the insert 51 is aligned with the socket 11, and the circuit board 5 is pressed towards the socket 11, so that the insert 51 and the terminal 2 are engaged. The locking seat 3 is pressed down further, and the protrusion 15 and the slot are engaged, and the locking post 321 and the locking slot 52 are engaged, forming a limit between the circuit board 5 and the locking seat 3, restricting the insert 51 from disengaging from the socket 11, and at the same time restricting the locking seat 3 from moving away from the socket 11. It can be seen that the engagement of the locking post 321 and the locking slot 52 at one point achieves the limitation of the circuit board 5 and the locking seat 3. Since the locking pin 321 and the locking slot 52 are not easily deformed in the direction away from or close to the socket 11, the locking between the locking pin 321 and the locking slot 52 is relatively stable, making the connection between the connector 1 of the circuit board 5 connector and the circuit board 5 more secure.

[0076] The implementation principle of an outdoor refrigerator fan assembly according to an embodiment of this application is as follows: When the operator needs to connect the terminals and the inserts of the circuit board, the terminals are connected to the connector. Then, the locking seat is pressed down, releasing the lower end of the positioning plate and the protrusion. The limiting component limits the movement of the terminals, restricting their movement. Then, the insert is aligned with the socket, and the circuit board is pressed towards the socket to complete the engagement between the insert and the terminal. The locking seat is pressed down further, and the protrusion and the slot engage, as do the locking post and the locking slot. A limit is formed between the circuit board and the locking seat, preventing the insert from disengaging from the socket and simultaneously limiting the movement of the locking seat away from the socket. Thus, the locking of the circuit board and the locking seat is achieved at one point. Because the locking post and the locking slot are less prone to deformation in the direction away from or near the socket, the engagement between the locking post and the locking slot is relatively stable, making the connection between the circuit board connector and the circuit board more secure.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A circuit board connecting structure, characterized by comprising: include: The connector (1) has a socket (11) at one end; Terminal (2), which is connected to the connector (1) and extends into the socket (11); Locking seat (3), which is detachably connected to the end of the connecting seat (1) away from the socket (11); A limiting component (4) is disposed between the locking seat (3) and the terminal (2) to limit the terminal (2) from moving away from the socket (11); A circuit board (5) is connected to a insert (51), the insert (51) extending into the socket (11) and plugging into the terminal (2); One of the circuit board (5) and the locking seat (3) has a slot (52) and the other has a locking post (321) connected to it. The opening direction of the slot (52) intersects the opening direction of the socket (11), and the extension direction of the locking post (321) is along the thickness direction of the circuit board (5). When the limiting component (4) completes the limiting of the terminal (2), the locking post (321) and the slot (52) are engaged. The locking seat (3) includes: A cover plate (31) is provided on the connecting seat (1); Two side plates (32) are respectively connected to both sides of the cover plate (31), the two side plates (32) clamp the connecting seat (1), and the locking post (321) or the locking slot (52) is provided on the side plate (32); A terminal slot (12) is provided at the position opposite to the connector (1) and the cover plate (31). One end of the terminal slot (12) is connected to the socket (11), and the other end is connected to the end of the connector (1). The terminal slot (12) and the cover plate (31) are provided with an opening on the opposite side. A plug strip (311) is fixed at the position opposite to the cover plate (31) and the terminal slot (12). The plug strip (311) is inserted into the terminal slot (12).

2. A circuit board (5) connection structure according to claim 1, characterized in that, A guide strip (14) is fixed on one of the cover plate (31) and the connecting seat (1), and a guide groove (322) adapted to the guide strip (14) is opened on the other. The extension direction of the guide strip (14) is along the thickness direction of the circuit board (5).

3. A circuit board (5) connection structure according to claim 1, characterized by The side plate (32) is connected to a positioning plate (33), and the connecting seat (1) is fixed with a protrusion (15). When the positioning plate (33) and the protrusion (15) abut against each other, the limiting component (4) limits the terminal (2).

4. A circuit board (5) connection structure according to claim 3, characterized in that The positioning plate (33) is provided with a groove (331) that matches the protrusion (15). When the locking post (321) and the locking slot (52) are engaged, the protrusion (15) and the groove (331) are engaged and matched.

5. A circuit board (5) connection structure according to claim 1, characterized by The terminal (2) includes two opposing clamping arms (21), which clamp the insert (51); The clamping arm (21) is connected to an elastic part (22) on the side near the insert (51), and the elastic part (22) and the insert (51) abut against each other; The end of the elastic part (22) is connected to an elastic sheet (23), and the end of the elastic sheet (23) away from the elastic part (22) faces the wall of the socket (11); When the insert (51) is inserted between the two clamping arms (21), the elastic piece (23) abuts against the wall of the socket (11).

6. A circuit board (5) connection structure according to claim 1, wherein The limiting component (4) includes: A limiting post (41) has one end fixed to the cover plate (31) and the other end extending into the terminal groove (12); A limiting block (42) is connected to the end of the terminal (2) away from the insert (51) and is spaced apart from the terminal (2). The limiting post (41) is inserted between the terminal (2) and the limiting block (42).

7. A circuit board (5) connection structure according to claim 1, characterized by The socket (11) is provided with a slide groove (13) for guiding the terminal (2), and the slide groove (13) is connected to the terminal slot (12).

8. A connection method for a circuit board (5) connection structure, based on the circuit board (5) connection structure according to any one of claims 1-7, characterized in that, Includes the following steps: Insert the terminal (2) into the socket (11); Press the locking seat (3) along the thickness direction of the circuit board (5) to limit the movement of the terminal (2) by the limiting component (4), and then stop pressing the locking seat (3). Align the insert (51) with the socket (11) and press the circuit board (5) toward the socket (11) to make the insert (51) and the terminal (2) fit together; Continue pressing the locking seat (3) along the thickness direction of the circuit board (5) to make the locking post (321) and the locking slot (52) engage and complete the engagement.

Images