Circuit board connecting structure and connecting method thereof

Abstract

The invention 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 base, a first connecting piece and a second connecting piece, the terminal is connected to the connecting seat and extends into the socket; the locking seat is detachably connected to one end, far away from the socket, of the connecting seat; the limiting assembly is arranged between the locking seat and the terminal and used for limiting the terminal to be away from the socket; the circuit board is connected with an inserting piece, and the inserting piece extends into the inserting opening and is connected with the terminal in an inserted mode; one of the circuit board and the locking seat is provided with a bayonet, the other one is connected with a clamping column, the opening direction of the bayonet is intersected with the opening direction of the socket, and the extending direction of the clamping column is along the thickness direction of the circuit board; and after the terminal is limited by the limiting assembly, the clamping column is clamped with the bayonet. The circuit board connector has the effect that the connection between the connecting seat of the circuit board connector and the circuit board is firmer.

Description

Technical Field

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

[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 the prior art, an elastic buckle is usually arranged between the connection base of the circuit board connector and the circuit board to prevent the connection base and the circuit board from being loosened. However, in many cases, since the circuit board connector itself is small in size, the size of the elastic buckle between the connection base and the circuit board is also small, resulting in poor firmness of the elastic buckle, and the connection base of the circuit board connector and the circuit board are easy to be loosened. Summary of the invention

[0004] In order to make the connection between the connection seat of the circuit board connector and the circuit board more secure, the present application provides a circuit board connection structure and a connection method thereof.

[0005] In the first aspect, the present application provides a circuit board connection structure and a connection method thereof using the following technical solutions:

[0006] A circuit board connection structure and a connection method thereof, comprising a connection seat, one end of which is provided with a socket; a terminal, which is connected to the connection seat and extends into the socket; a locking seat, which is detachably connected to the end of the connection seat away from the socket; a limiting assembly, which is arranged between the locking seat and the terminal and is used to limit the terminal from being away from the socket; a circuit board, which is connected with a plug-in sheet, which extends into the socket and is plugged into the terminal; a bayonet is provided on one of the circuit board and the locking seat, and a clamping column is connected to the other, the opening direction of the bayonet intersects with the opening direction of the socket, and the extending direction of the clamping column is along the thickness direction of the circuit board; when the limiting assembly completes the limiting of the terminal, the clamping column and the bayonet are clamped.

[0007] By adopting the above technical solution, when the staff needs to connect the terminal and the plug of the circuit board, the terminal is connected to the connecting seat. Then the locking seat is pressed along the thickness direction of the circuit board so that the limit assembly limits the movement of the terminal, and the movement of the terminal is restricted. Then the plug is aligned with the socket, and the circuit board is pressed toward the socket so that the plug and the terminal are matched. Continue to press the locking seat along the thickness direction of the circuit board, and the clamping column and the bayonet are clamped, and a limit is formed between the circuit board and the locking seat, which limits the plug from being separated from the socket and limits the movement of the locking seat in the direction away from the socket. It can be seen that the clamping of the clamping column and the bayonet realizes the limit of the circuit board and the locking seat. Since the clamping column and the bayonet are not easy to deform in the direction away from or close to the socket, the clamping between the clamping column and the bayonet is relatively stable, so that the connection between the connecting seat of the circuit board connector and the circuit board is more firmly connected.

[0008] Preferably, the locking seat includes: a cover plate, which is covered on the connecting seat; two side plates respectively connected to both sides of the cover plate, the two side plates clamp the connecting seat, and the clamping column or the clamping port is arranged on the side plates.

[0009] By adopting the above technical solution, when the staff needs to connect the locking seat to the connecting seat, they only need to place the connecting seat between the two side plates and press the cover plate downward until the cover plate and the top of the connecting seat are in contact, thus completing the connection between the locking seat and the connecting seat. The operation is relatively convenient, making the connection between the locking seat and the connecting seat relatively convenient and quick. At the same time, since the two side plates clamp the connecting seat, the connecting seat supports the side plates. When the clamping column or the clamping port has a tendency to deform toward the side plates, the connecting seat supports the side plates, making it difficult for the clamping column or the clamping port to deform, further ensuring the firmness of the connection between the connecting seat and the circuit board.

[0010] Preferably, a terminal groove is provided at the relative positions of the connecting seat and the cover plate, one end of the terminal groove is connected to the socket, and the other end is connected to the end of the connecting seat; the terminal groove and the cover plate are provided with an opening on one side opposite to each other, and a plug-in strip is fixed at the relative positions of the cover plate and the terminal groove, and the plug-in strip is plugged into the terminal groove.

[0011] By adopting the above technical solution, the staff can move the terminal to the socket by inserting the terminal along the terminal slot. And through the cooperation between the plug strip and the terminal slot, the cover plate and the connecting seat are connected, making the connection between the locking seat and the connecting seat more secure.

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

[0013] By adopting the above technical solution, before the staff presses the cover plate, they first match the guide bar and the guide groove, and then press the cover plate downward to ensure that the limit assembly can limit the terminal, which is convenient for the staff to operate. In addition, when the staff inserts the plug, they push the circuit board toward the socket, and the cooperation of the guide bar and the guide groove can also prevent the locking seat from moving in the direction away from the socket, without manually blocking the movement of the locking seat.

[0014] Preferably, the side plate is connected to a positioning plate, and the connection seat is fixed with a protrusion, and when the positioning plate and the protrusion are abutted, the limiting assembly completes the limiting of 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 limit assembly completes the limit, which makes 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 adapted to the protrusion, and when the clamping column and the bayonet are completely engaged, the protrusion and the groove are engaged and adapted.

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

[0018] Preferably, the terminal includes two clamping arms arranged opposite to each other, and the two clamping arms clamp the plug-in piece; an elastic part is connected to the side of the clamping arm close to the plug-in piece, and the elastic part abuts against the plug-in piece; an elastic sheet is connected to the tail end of the elastic part, and the end of the elastic sheet away from the elastic part faces the wall of the socket; when the plug-in piece is extended between the two clamping arms, the elastic sheet abuts against the wall of the socket.

[0019] By adopting the above technical solution, when the plug and the two clamping arms are matched, the plug pushes the elastic part, and the elastic part deforms toward the wall of the socket, so that the tail end of the elastic piece is pressed against the wall of the socket, further preventing the terminal from moving in the socket, and further enhancing the reliability of the match between the terminal and the plug. At the same time, the elastic piece also forms a reaction force on the elastic piece, increasing the pressing force between the elastic part and the plug.

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

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

[0022] Preferably, a slide groove for guiding the terminal is provided in the socket, and the slide groove is connected to the terminal groove.

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

[0024] On the other hand, the present application discloses a connection method for a circuit board connection structure, which includes the following steps: extending the terminal into the socket; pressing the locking seat along the thickness direction of the circuit board to stop pressing the locking seat after the limiting component limits the movement of the terminal; aligning the plug with the socket and pressing the circuit board toward the socket to complete the matching of the plug and the terminal; continuing to press the locking seat along the thickness direction of the circuit board to complete the connection between the clamping column and the clamping socket.

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

[0026] 1. When the staff needs to connect the terminal and the plug of the circuit board, connect the terminal to the connecting seat. Then press the locking seat along the thickness direction of the circuit board so that the limit assembly limits the movement of the terminal, and the movement of the terminal is restricted. Then align the plug with the socket, and press the circuit board toward the socket so that the plug and the terminal are matched. Continue to press the locking seat along the thickness direction of the circuit board to achieve a snap connection between the clamping column and the clamping socket, and form a limit between the circuit board and the locking seat to limit the plug from leaving the socket and limit the movement of the locking seat in the direction away from the socket. It can be seen that the clamping of the clamping column and the clamping socket realizes the limit of the circuit board and the locking seat. Since the clamping column and the clamping socket are not easily deformed in the direction away from or close to the socket, the clamping connection between the clamping column and the clamping socket is relatively stable, making the connection between the connecting seat of the circuit board connector and the circuit board more secure;

[0027] 2. Before the staff presses the cover plate, they first match the guide bar and the guide groove, and then press the cover plate downward to ensure that the limit assembly can limit the terminal, which is convenient for the staff to operate. In addition, when the staff subsequently inserts the plug, the circuit board is pushed toward the socket. The cooperation of the guide bar and the guide groove can also prevent the locking seat from moving away from the socket, without the need to manually block the movement of the locking seat;

[0028] 3. When the plug and the two clamping arms are matched, the plug pushes the elastic part, and the elastic part deforms toward the wall of the socket, so that the tail end of the elastic piece is pressed against the wall of the socket, further preventing the terminal from moving in the socket, and further enhancing the reliability of the match between the terminal and the plug. At the same time, the elastic piece also forms a reaction force on the elastic piece, increasing the pressing force between the elastic part and the plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

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

[0031] Figure 2 It is an exploded schematic diagram of the cooperation between the terminal and the connecting socket in the embodiment of the present application;

[0032] Figure 3 It is an exploded schematic diagram of the matching of the plug and the terminal in the embodiment of the present application;

[0033] Figure 4 It is an exploded schematic diagram of the cooperation between the bayonet and the clamping column in the embodiment of the present application;

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

[0035] Figure 6 yes Figure 1 Sectional view in the AA direction;

[0036] Figure 7 yes Figure 6 Schematic diagram of the enlarged portion B.

[0037] Reference numerals:

[0038] 1. Connecting seat; 11. Socket; 12. Terminal slot; 13. Slide slot; 14. Guide strip; 15. Bump;

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

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

[0041] 4. Limiting assembly; 41. Limiting column; 42. Limiting block;

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

[0043] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] The following is combined with Figure 1-7 This application is described in further detail.

[0045] Reference Figure 1-3 The present application discloses an embodiment of a circuit board 5 connection structure, which includes a connection seat 1, a terminal 2, a locking seat 3, a limiting assembly 4 and a circuit board 5. A socket 11 is provided at one end of the connection seat 1, and the terminal 2 is connected to the connection seat 1 and extends into the socket 11. The locking seat 3 is detachably connected to the end of the connection seat 1 away from the socket 11, and the limiting assembly 4 is arranged between the locking seat 3 and the terminal 2, and is used to limit the terminal 2 from being away from the socket 11. The circuit board 5 is connected with a plug 51, and the plug 51 extends into the socket 11 and is plugged with the terminal 2. A bayonet 52 is provided on one of the circuit board 5 and the locking seat 3, and a clamping column 321 is connected to the other, the opening direction of the bayonet 52 intersects with the opening direction of the socket 11, and the extension direction of the clamping column 321 is along the thickness direction of the circuit board 5. When the limiting assembly 4 completes the limiting of the terminal 2, the clamping column 321 and the bayonet 52 are clamped.

[0046] In a preferred embodiment of the present application, the plug 51 includes a plug body 511 and a conductive sheet 512. The plug body 511 and the circuit board 5 are integrally formed, and the plug body 511 is located in the middle of the circuit board 5. The conductive sheet 512 is arranged on the surface of the plug 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 plug 51, and the connecting seat 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 the present application, the bayonet 52 is provided on the circuit board 5, and the clamping column 321 is integrally formed on the locking seat 3. Specifically, the bayonet 52 is in the shape of a semicircular opening, and the clamping column 321 is in the shape of a matching semi-cylindrical opening. In other embodiments, the bayonet 52 may also be provided on the locking seat 3, the clamping column 321 is provided on the circuit board 5, and the bayonet 52 may also be an opening of other shapes such as a rectangle or a triangle, and the clamping column 321 is adapted to the shape of the bayonet 52.

[0048] First, the assembly of the connection structure of the circuit board 5 is generally introduced. Generally, it is divided into three steps: 1. The connection between the terminal 2 and the connection seat 1; 2. The connection between the plug 51 and the terminal 2; 3. The clamping connection between the clamping column 321 and the clamping port 52. Figure 2 The direction defined in is a reference, the thickness direction of the circuit board 5 is defined as the up-down direction, the opening direction of the socket 11 is defined as the front-to-back direction, the direction toward the top of the connecting seat 1 is upward, and the opening direction of the socket 11 is forward.

[0049] Reference Figure 2 First, the staff inserts the terminal 2 from the rear end of the connection seat 1 and pushes the terminal 2 forward until the terminal 2 is located in the socket 11. Then, the locking seat 3 is pressed downward to allow the limiting component 4 to limit the terminal 2, thus completing the connection between the terminal 2 and the connection seat 1.

[0050] Reference Figure 3 and Figure 4 The staff member uses his hand to limit the backward movement of the locking seat 3, and the staff member 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 matched. After the insert 51 and the terminal 2 are matched, the bayonet 52 is located below the clamping column 321.

[0051] Reference Figure 1 and Figure 4 After the terminal 2 and the plug 51 are matched, the staff continues to press the locking seat 3 downward to complete the engagement between the bayonet 52 and the clamping column 321, and the assembly of the circuit board 5 connection structure is completed. Figure 1 shown.

[0052] Next, various parts of the connection structure of the circuit board 5 are introduced in detail.

[0053] Reference Figure 2 , a terminal slot 12 is provided at the rear end of the connection base 1, and a socket 11 is provided at the front end of the connection base 1, and the terminal slot 12 is connected to the socket 11. Normally, one terminal 2 is connected to one wire, and a circuit board 5 connection structure needs to be provided with multiple wires. Therefore, in a preferred embodiment of the present application, a plurality of terminal slots 12 are provided at intervals, and the plurality of terminal slots 12 are all connected to the socket 11. The staff pushes the terminal 2 forward from the terminal slot 12 until the terminal 2 is pushed to a suitable position in the socket 11.

[0054] Further, see Figure 2 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 groove 12. With such a configuration, when the staff inserts the terminal 2 into the socket 11, the slide groove 13 can guide the terminal 2 to prevent the terminal 2 from deviating, thereby ensuring a stable fit between the terminal 2 and the plug 51.

[0055] Reference Figure 5 The terminal 2 includes two clamping arms 21 arranged opposite to each other, and the two clamping arms 21 clamp the plug 51. The side of the clamping arm 21 close to the plug 51 is connected to the elastic part 22, and the elastic part 22 abuts against the plug 51. The tail end of the elastic part 22 is connected to the 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 plug 51 extends between the two clamping arms 21, the elastic sheet 23 abuts against the wall of the socket 11.

[0056] Reference Figure 6 When the insert 51 and the two clamping arms 21 are matched, the insert 51 pushes the elastic part 22, and the elastic part 22 deforms toward the wall of the socket 11, so that the tail end of the elastic piece 23 is pressed against the wall of the socket 11, further preventing the terminal 2 from moving in the socket 11, and further enhancing the reliability of the match between the terminal 2 and the insert 51. At the same time, the elastic piece 23 also forms a reaction force on the elastic piece 23, increasing the pressing force between the elastic part 22 and the insert 51.

[0057] Furthermore, the terminal 2 needs to be pushed forward from the rear end of the connection base 1, so it is necessary to limit the forward push of the terminal 2. Figure 6 and Figure 7 A blocking piece 24 is integrally formed at the rear end of the upper clamping arm 21. When the blocking piece 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 is covered on the connecting seat 1, and the two side plates 32 are respectively connected to the two sides of the cover plate 31. The two side plates 32 clamp the connecting seat 1, and the clamping column 321 is set on the side plate 32. The clamping column 321 is set on the upper part of the side plate 32 to ensure that the clamping column 321 does not interfere with the circuit board 5 when the staff inserts the plug 51. In a preferred embodiment of the present application, the cover plate 31 and the two side plates 32 are integrally formed. In other embodiments, the side plates 32 can also be bonded to the cover plate 31.

[0059] When the staff needs to connect the locking seat 3 to the connecting seat 1, they just need to place the connecting seat 1 between the two side plates 32 and press the cover plate 31 downward until the cover plate 31 and the top of the connecting seat 1 are in contact, 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 relatively convenient and quick. At the same time, since the two side plates 32 clamp the connecting seat 1, the connecting seat 1 supports the side plates 32. When the clamping column 321 or the clamping socket 52 tends to deform toward the side plates 32, the connecting seat 1 supports the side plates 32, making it difficult for the clamping column 321 or the clamping socket 52 to deform, further ensuring the firmness of the connection between the connecting seat 1 and the circuit board 5.

[0060] Further, see Figure 2 The terminal slot 12 is provided with an opening on one side opposite to the cover plate 31, and a plug strip 311 is fixed at the position opposite to the terminal slot 12, and the plug strip 311 is plugged into the terminal slot 12. Through the cooperation between the plug strip 311 and the terminal slot 12, a connection is formed between the cover plate 31 and the connecting seat 1, so that the connection between the locking seat 3 and the connecting seat 1 is more secure.

[0061] Further, see Figure 2 , a guide bar 14 is fixed on one of the cover plate 31 and the connecting seat 1, and a guide groove 322 adapted to the guide bar 14 is provided on the other, and the extension direction of the guide bar 14 is along the thickness direction of the circuit board 5. In a preferred embodiment of the present application, the guide bar 14 is integrally formed on the side wall of the connecting seat 1, and the guide groove 322 is provided on the side plate 32. Before the staff presses the cover plate 31, they first match the guide bar 14 with the guide groove 322, and then press the cover plate 31 downward to ensure that the limit assembly 4 can limit the terminal 2, which facilitates the operation of the staff. In addition, when the staff inserts the plug 51, the circuit board 5 is pushed toward the socket 11, and the cooperation of the guide bar 14 and the guide groove 322 can also prevent the locking seat 3 from moving in a direction away from the socket 11, without manually blocking the locking seat 3 from moving backward.

[0062] Further, see Figure 3 , the side plate 32 is connected with the positioning plate 33, and the connection seat 1 is fixed with the protrusion 15. When the positioning plate 33 and the protrusion 15 are in contact, the limiting component 4 completes the limiting of the terminal 2. At this time, the clamping column 321 is located above the circuit board 5 and will not interfere with the pressing of the circuit board 5. When the staff presses the cover plate 31 until the positioning plate 33 and the protrusion 15 are in contact, the limiting component 4 completes the limiting, which is convenient for the staff to judge whether the cover plate 31 is pressed in place, thereby improving the staff's operating efficiency.

[0063] Further, see Figure 2 and Figure 4 The positioning plate 33 is provided with a groove 331 adapted to the protrusion 15. When the clamping column 321 and the bayonet 52 are engaged, the protrusion 15 and the groove 331 are engaged and adapted. The anti-dropping between the locking seat 3 and the connecting seat 1 is achieved through the cooperation between the protrusion 15 and the groove 331, and the firmness of the connection between the connecting seat 1 and the circuit board 5 is further improved. It can be seen that the protrusion 15 plays the above-mentioned positioning role on the one hand, and plays the role of engagement on the other hand, which improves the compactness of the overall connection structure of the circuit board 5.

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

[0065] When the staff presses the cover plate 31 downward, the limiting column 41 can be pressed between the terminal 2 and the limiting block 42, thereby limiting the movement of the terminal 2 in the front-to-back direction and facilitating the limiting between the terminal 2 and the connecting seat 1.

[0066] Based on the above-mentioned circuit board 5 connection structure, the present application also discloses a connection method of 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 make the limiting assembly 4 limit the movement of the terminal 2, 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 to press the locking seat 3 along the thickness direction of the circuit board 5 to make the clamping column 321 and the clamping hole 52 engage with each other.

[0071] by Figure 2 Taking the disclosed embodiment as an example, for step S1, the staff inserts the terminal 2 from the rear end of the connection seat 1 and pushes the terminal 2 forward until the terminal 2 is located in the socket 11. For step S2, the staff aligns the guide bar 14 with the guide groove 322, presses the locking seat 3 downward, makes the lower end of the positioning plate 33 abut against the protrusion 15, makes the limiting component 4 limit the terminal 2, stops pressing the locking seat 3, and completes the connection between the terminal 2 and the connection seat 1.

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

[0073] by Figure 2 and Figure 4Taking the disclosed embodiment as an example, for step 4, the staff presses the locking seat 3 downward, and when the protrusion 15 and the groove 331 are matched, the bayonet 52 and the clamping column 321 are connected.

[0074] Finally, it should be noted that when the staff needs to disassemble the connection between the connection seat 1 and the circuit board 5, they only need to push the locking seat 3 to disengage the protrusion 15 from the groove 331, and then continue to push until the locking seat 3 is separated from the connection seat 1. Then the limit between the circuit board 5 and the connection seat 1 is released, and the limit between the terminal 2 and the connection seat 1 is released, and the terminal 2 and the circuit board 5 can be removed. The disassembly of the entire circuit board 5 connection structure can be completed by only releasing the connection between the locking seat 3 and the connection seat 1, which greatly improves the disassembly efficiency of the circuit board 5 connection structure.

[0075] The implementation principle of an outdoor refrigerator fan assembly machine in the embodiment of the present application is as follows: when the staff needs to connect the terminal 2 and the plug 51 of the circuit board 5, the terminal 2 is connected to the connecting seat 1. Then the locking seat 3 is pressed downward to release the lower end of the positioning plate 33 and the protrusion 15, and the limiting component 4 limits the movement of the terminal 2, and the movement of the terminal 2 is restricted. Then the plug 51 is aligned with the socket 11, and the circuit board 5 is pressed toward the socket 11, so that the plug 51 and the terminal 2 are matched. Continue to press the locking seat 3 downward, the protrusion 15 and the card slot are connected, the card column 321 and the card slot 52 are connected, and a limit is formed between the circuit board 5 and the locking seat 3, which limits the plug 51 from being separated from the socket 11, and at the same time limits the movement of the locking seat 3 in the direction away from the socket 11. It can be seen that the card column 321 and the card slot 52 are connected at one place to achieve the limit of the circuit board 5 and the locking seat 3. Since the clamping column 321 and the clamping socket 52 are not easily deformed in the direction away from or close to the socket 11, the clamping connection between the clamping column 321 and the clamping socket 52 is relatively stable, making the connection between the connecting seat 1 of the circuit board 5 connector and the circuit board 5 more secure.

[0076] The implementation principle of an outdoor refrigerator fan assembly machine in the embodiment of the present application is as follows: when the staff needs to connect the terminal and the plug-in piece of the circuit board, the terminal is connected to the connecting seat. Then the locking seat is pressed downward to release the lower end of the positioning plate and the protrusion, and the limiting assembly limits the movement of the terminal, and the movement of the terminal is restricted. Then the plug-in piece is aligned with the socket, and the circuit board is pressed toward the socket to complete the matching of the plug-in piece and the terminal. Continue to press the locking seat downward, and the protrusion and the slot are connected, and the clamping column and the bayonet are connected. A limit is formed between the circuit board and the locking seat, which limits the plug-in piece from being separated from the socket, and at the same time limits the movement of the locking seat in the direction away from the socket. It can be seen that the clamping of the clamping column and the bayonet realizes the limit of the circuit board and the locking seat. Since the clamping column and the bayonet are not easy to deform in the direction away from or close to the socket, the clamping column and the bayonet are ensured to be relatively stable, so that the connection between the connecting seat of the circuit board connector and the circuit board is more firmly connected.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements 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 connection structure, characterized in that: include: A connecting seat (1) having a socket (11) at one end; A terminal (2) connected to the connection seat (1) and extending into the socket (11); A locking seat (3) detachably connected to an end of the connecting seat (1) away from the socket (11); A limiting component (4), which is arranged between the locking seat (3) and the terminal (2) and is used to limit the terminal (2) from being away from the socket (11); A circuit board (5) connected to a plug-in sheet (51), wherein the plug-in sheet (51) extends into the socket (11) and is plugged into the terminal (2); A bayonet (52) is provided on one of the circuit board (5) and the locking seat (3), and a clamping column (321) is connected to the other, the opening direction of the bayonet (52) intersects with the opening direction of the socket (11), and the extension direction of the clamping column (321) is along the thickness direction of the circuit board (5); when the limiting component (4) completes the limiting of the terminal (2), the clamping column (321) and the bayonet (52) are clamped.

2. A circuit board (5) connection structure according to claim 1, characterized in that: The locking seat (3) comprises: A cover plate (31) which covers the connecting seat (1); Two side plates (32) are respectively connected to the two sides of the cover plate (31), the two side plates (32) clamp the connecting seat (1), and the clamping column (321) or the clamping port (52) is arranged on the side plates (32).

3. A circuit board (5) connection structure according to claim 2, characterized in that: A terminal groove (12) is provided at a position where the connection seat (1) and the cover plate (31) are opposite to each other, one end of the terminal groove (12) is connected to the socket (11), and the other end is connected to the end of the connection seat (1); The terminal slot (12) and the cover plate (31) are provided with an opening on one side opposite to each other, and a plug-in strip (311) is fixed at a position opposite to the cover plate (31) and the terminal slot (12), and the plug-in strip (311) is plugged into the terminal slot (12).

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

5. A circuit board (5) connection structure according to claim 2, characterized in that: The side plate (32) is connected to a positioning plate (33), and the connection seat (1) is fixed with a protrusion (15). When the positioning plate (33) and the protrusion (15) are in contact, the limiting component (4) completes the limiting of the terminal (2).

6. A circuit board (5) connection structure according to claim 5, characterized in that: The positioning plate (33) is provided with a groove (331) adapted to the protrusion (15); when the clamping column (321) and the clamping socket (52) are clamped together, the protrusion (15) and the groove (331) are clamped together and adapted.

7. A circuit board (5) connection structure according to claim 1, characterized in that: The terminal (2) comprises two clamping arms (21) arranged opposite to each other, and the two clamping arms (21) clamp the inserting piece (51); A side of the clamping arm (21) close to the inserting piece (51) is connected to an elastic portion (22), and the elastic portion (22) abuts against the inserting piece (51); The tail end of the elastic part (22) is connected to an elastic sheet (23), and one end of the elastic sheet (23) away from the elastic part (22) faces the wall surface of the socket (11); When the inserting piece (51) extends between the two clamping arms (21), the elastic piece (23) is pressed against the wall surface of the socket (11).

8. A circuit board (5) connection structure according to claim 3, characterized in that: The limiting component (4) comprises: A limiting column (41), one end of which is fixed to the cover plate (31) and the other end of which extends into the terminal groove (12); A limit block (42) is connected to an end of the terminal (2) away from the plug (51) and is spaced apart from the terminal (2); the limit column (41) is inserted between the terminal (2) and the limit block (42).

9. A circuit board (5) connection structure according to claim 3, characterized in that: A slide groove (13) for guiding the terminal (2) is provided in the socket (11), and the slide groove (13) is connected to the terminal groove (12).

10. 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 to 9, characterized in that: The following steps are involved: Inserting the terminal (2) into the socket (11); Pressing the locking seat (3) along the thickness direction of the circuit board (5) so that the limiting component (4) limits the movement of the terminal (2), and then stopping pressing the locking seat (3); Aligning the inserting piece (51) with the socket (11), and pressing the circuit board (5) toward the socket (11) so that the inserting piece (51) and the terminal (2) are mated; The locking seat (3) is continuously pressed along the thickness direction of the circuit board (5) so that the clamping column (321) and the clamping port (52) are clamped together to complete the clamping.

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