Circuit board connecting elastic piece, wiring terminal, wiring bar and intelligent terminal

Abstract

The invention relates to the field of intelligent instruments and intelligent terminals, in particular to a circuit board connecting elastic piece which comprises a bottom piece connected to a wiring terminal and a contact piece which is connected to the bottom piece and can be in contact with a circuit board conductive contact, and a barb piece which can be embedded in the wiring terminal is formed on the bottom piece. Therefore, the elastic sheet can be relatively conveniently placed into the line bank to be connected with the wiring terminal.

Description

Technical Field

[0001] The present application relates to the field of intelligent meters and intelligent terminals, and in particular to a circuit board connection elastic piece, a wiring terminal, a wiring row and an intelligent terminal. Background Art

[0002] A circuit board is arranged inside an intelligent terminal and connected to an external signal line, a power line, a button box, etc. to collect data such as power statistics. In the past, the connection method between the circuit board and the cable was to use a wiring row at the end of the cable. The wiring row was provided with pin headers, and the pin headers were inserted into the holes on the circuit board and soldered. However, this method is likely to make it difficult to separate from the wiring row when replacing the circuit board.

[0003] Therefore, some of the original soldering holes on the circuit board are changed to conductive contacts, and elastic pieces are arranged inside the wiring row. The conductive contacts of the circuit board can be inserted into the wiring row, so that the elastic pieces are pressed against the conductive contacts of the circuit board. For related content, reference can be made to a printed circuit board electrical connection elastic piece with the publication number CN204858023U and a reliable connection method between a circuit board and a wiring terminal with the publication number CN106025580A.

[0004] In view of the above related technologies, the elastic piece and the wiring terminal are fixedly connected by riveting, making it inconvenient to install the elastic piece corresponding to the wiring row. Summary of the Invention

[0005] In order to make it more convenient to install the elastic piece corresponding to the wiring row, the present application provides a circuit board connection elastic piece, a wiring terminal, a wiring row and an intelligent terminal.

[0006] The circuit board connection elastic piece, the wiring terminal, the wiring row and the intelligent terminal provided by the present application adopt the following technical solutions.

[0007] A circuit board connection elastic piece includes a bottom piece connected to a wiring terminal and a contact piece connected to the bottom piece and capable of contacting a conductive contact of the circuit board. The bottom piece is formed with a barb member that can be embedded in the wiring terminal.

[0008] By adopting the above technical solutions, the barb member can prevent the elastic piece from being easily removed from the wiring row, so that when the circuit board is pulled out from the wiring row, it is not easy to take out the elastic piece together, and the connection method between the elastic piece and the wiring terminal does not require riveting or the like, which is relatively simple.

[0009] Optionally, the position where the barb member is connected to the bottom piece is closer to the inside of the wiring terminal than the position where the barb member is far from the bottom piece.

[0010] By adopting the above technical solution, the spring piece can be directly pushed into the terminal block during installation, which makes installation more convenient and does not require the barb piece to be designed in a relatively complex shape.

[0011] Optionally, the bottom film is provided with a reinforcing sheet, an angle exists between the reinforcing sheet and the bottom film, and the reinforcing sheet is provided with a rebound limiting part which can abut against the surface of the contact sheet away from the bottom film.

[0012] By adopting the above technical solution, the bottom film is less likely to be bent, ensuring that the spring sheet is less likely to be deformed during the process of being transferred and installed into the terminal block after being manufactured. In addition, the setting of the rebound limiting part can also ensure that the contact sheet does not rebound too much while maintaining a high rebound force, so that the spring sheet can be smoothly installed into the terminal block while also being tightly pressed against the conductive contacts of the circuit board.

[0013] Optionally, a convex portion is formed on the side of the contact sheet facing away from the bottom sheet, and a surface of the convex portion is arc-shaped and the arc-shaped surface contacts the conductive contact of the circuit board.

[0014] By adopting the above technical solution, even if the installation position of the circuit board is tilted or deformed to a certain extent, the arc surface of the protrusion can always contact the conductive contact of the circuit board well, and it is not easy for the sharp side edge of the contact piece to contact the circuit board and cause damage.

[0015] Optionally, the contact sheet is provided with a separation limit piece which can abut against a side of the terminal block away from the bottom sheet so that the bottom sheet is pressed against the terminal. The separation limit piece is formed with a downward pressing slope, which is located on a side of the separation limit piece close to the inside of the terminal block. The closer the downward pressing slope is to the inside of the terminal block, the smaller the distance between the side and the bottom sheet is.

[0016] By adopting the above technical solution, when the circuit board is not plugged into the terminal block, the spring piece is not easy to shake in the terminal block, ensuring that the hook piece is not easy to detach from the terminal block, the spring piece is not easy to fall off from the terminal block, and the setting of the downward pressing slope can also make the process of placing the spring piece into the terminal block smoother.

[0017] Optionally, the bottom film is provided with a reserved piece for facilitating the transfer of the entire spring sheet.

[0018] By adopting the above technical solution, when the spring piece is moved and the corresponding wiring block is installed in an automated operation, the corresponding robot arm or clamping tool can clamp the reserved part without causing damage to other parts of the spring piece.

[0019] Optionally, the contact sheet includes a resilient member capable of elastic deformation, a conductive member connected to the side of the resilient member away from the bottom sheet and capable of abutting against the conductive contact of the circuit board, and an inner bending section bent toward one side of the conductive member is formed on the side of the resilient member close to the bottom sheet.

[0020] By adopting the above technical solution, the larger stress originally existing at the connection between the resilient member and the bottom plate due to the long-term deformation of the resilient member can be shared to a certain extent by the inner bending section, so that the position where the resilient member is connected to the bottom plate is less likely to break, thereby extending the overall service life of the spring piece.

[0021] A wiring terminal comprises a terminal body connected to the above-mentioned circuit board connecting spring sheet, wherein the terminal body is formed with a groove for the barb to enter.

[0022] By adopting the above technical solution, when the circuit board is pulled out from the terminal block, the spring sheet is not easily taken out together, and the connection method between the spring sheet and the terminal does not require riveting, etc., which is relatively simple.

[0023] A wiring block comprises an insulating base for mounting the above-mentioned circuit board connecting spring sheet and the above-mentioned wiring terminal, wherein a convex piece capable of abutting against a separation limiting piece is formed in the insulating base.

[0024] By adopting the above technical solution, when the circuit board is not plugged into the terminal block, the spring piece is not easy to shake in the terminal block.

[0025] An intelligent terminal comprises a shell for installing the above-mentioned wiring row, wherein a circuit board body which can be plugged into an insulating base so that a conductive contact and a contact sheet are in contact is arranged in the shell.

[0026] By adopting the above technical solution, when the circuit board is pulled out from the terminal block, the spring piece is not easily taken out together, and the connection method between the spring piece and the terminal does not require riveting, etc., which is relatively simple.

[0027] In summary, the present application includes at least the following beneficial effects.

[0028] 1. When the circuit board is pulled out from the terminal block, it is not easy to take out the spring piece together, and the connection method between the spring piece and the terminal does not require riveting, which is relatively simple;

[0029] 2. The setting of the rebound limiting member can also make the contact piece not rebound too much under the action of maintaining a high rebound force, so that the spring piece can be smoothly installed into the wiring row and can also be tightly pressed against the conductive contact of the circuit board;

[0030] 3. Even if the installation position of the circuit board is tilted or deformed to a certain extent, the arc surface of the convex part can always be in good contact with the conductive contact of the circuit board, and it is not easy for the sharp side of the contact piece to contact the circuit board and cause damage;

[0031] 4. When the circuit board is not plugged into the wiring terminal block, the elastic piece is not likely to shake within the wiring terminal block, ensuring that the barb member is not easily detached from the wiring terminal, and the elastic piece is not easily detached from within the wiring terminal block;

[0032] 5. The relatively large stress that originally existed at the connection between the resilient member and the bottom film due to the resilient member maintaining a certain deformation for a long time can be partially shared by the inner bent section, so that the resilient member is less likely to break at the position where it is connected to the bottom film, extending the overall service life of the elastic piece. Description of the Drawings

[0033] Figure 1 is a schematic structural diagram of an elastic piece for connecting a circuit board in the present application;

[0034] Figure 2 is a schematic structural diagram of a wiring terminal in the present application;

[0035] Figure 3 is a schematic structural diagram of a wiring terminal block in the present application;

[0036] Figure 4 is Figure 3 the enlarged view at A in

[0037] Figure 5 is a schematic structural diagram of an intelligent terminal in the present application.

[0038] Description of the Reference Numerals: 1. Bottom film; 2. Contact piece; 3. Barb member; 21. Terminal body; 22. Groove; 23. Insulating base; 24. Convex member; 25. Outer shell; 26. Circuit board body; 31. Reinforcing piece; 32. Limited resilient member; 33. Convex portion; 34. Limited separation member; 35. Pressing inclined surface; 36. Reserved member; 37. Resilient member; 38. Conductive member; 39. Inner bent section. Detailed Description of the Embodiment

[0039] The following further elaborates on the present application with reference to the accompanying drawings.

[0040] The embodiment of the present application discloses an elastic piece for connecting a circuit board. Referring to Figure 1 , it includes a bottom film 1 that can be placed into the wiring terminal block so that the bottom surface abuts against the wiring terminal. A contact piece 2 is formed on one side of the bottom film 1, and the upper part of the contact piece 2 abuts against the conductive contact on the bottom surface of one end of the circuit board when it is plugged into the wiring terminal block, so as to achieve current conduction.

[0041] Referring to Figure 1, the contact piece 2 includes a resilient member 37 and a conduction member 38. The resilient member 37 can be arranged on any one side around the bottom plate 1. In this embodiment, the resilient member 37 is arranged on the side of the bottom plate 1 away from the inside of the wiring row. The conduction member 38 is located above one end of the resilient member 37 away from the bottom plate 1. The shape of the resilient member 37 is not limited, as long as it can maintain the resilience force so that the conduction member 38 abuts against the conductive contact of the circuit board. In this embodiment, a part of the resilient member 37 is arranged in an arc shape. At the same time, an inner bending section 39 is formed at the bottom of the resilient member 37 close to the bottom plate 1, and the inner bending section 39 bends towards the conduction member 38, so that a part of the stress at the connection between the resilient member 37 and the bottom plate 1 can be shared at the inner bending section 39, making the connection between the resilient member 37 and the bottom plate 1 not easily damaged.

[0042] Referring to Figure 1 , the shape of the conduction member 38 is not limited either. In this embodiment, the conduction member 38 can be designed to be approximately U-shaped, and the bent part of the conduction member 38 is away from the bottom plate 1. A convex portion 33 is formed on the surface of the conduction member 38 facing away from the bottom plate 1, and the surface of the convex portion 33 is arc-shaped. The convex portion 33 abuts against the conductive contact of the circuit board, so that the sharp side of the conduction member 38 is not easily directly abutted against the conductive contact of the circuit board. The position of the convex portion 33 on the conduction member 38 is not limited. In this embodiment, the convex portion 33 can be arranged near the middle position in the width direction of the conduction member 38.

[0043] Referring to Figure 1 , a reinforcing piece 31 is fixedly connected to the side of the bottom plate 1. There is an included angle between the reinforcing piece 31 and the bottom plate 1 to reduce the space occupied by the overall elastic piece in the wiring row. In this embodiment, the reinforcing piece 31 is perpendicular to the bottom plate 1 and the reinforcing piece 31 can be arranged on both opposite sides of the bottom plate 1. Limited resilient members 32 are fixedly connected to the adjacent sides of the two reinforcing pieces 31. The limited resilient members 32 can abut against the connection between the resilient member 37 and the conduction member 38, so that the resilient member 37 does not rebound too much under the action of maintaining a high resilience force, so that the distance between the conduction member 38 and the bottom plate 1 is not easily too large, so as to put the overall elastic piece into the wiring row.

[0044] Referring to Figure 1 , a barb member 3 is formed on the bottom surface of the bottom plate 1. The barb member 3 is not connected to one end of the bottom plate 1 away from the bottom plate 1. One end of the barb member 3 away from the bottom plate 1 can be close to or away from the inside of the wiring row. In this embodiment, one end of the barb member 3 away from the bottom plate 1 is away from the inside of the wiring row, so that when the elastic piece is put into the wiring row, the barb member 3 will first be squeezed by the wiring terminal into the bottom plate 1 until the barb member 3 is aligned with the designated position of the wiring terminal, and the barb member 3 rebounds and is embedded in the designated position of the wiring terminal, so that it is difficult for the elastic piece to be removed from the wiring row.

[0045] Referring to Figure 1The elastic member 37 is fixedly connected to the limited separation member 34 at one end close to the conductive member 38, and the upper part of the limited separation member 34 can abut against the inside of the wiring bank, so that after the spring piece is installed, even if the circuit board is not plugged into the wiring bank, the spring piece is not easy to have a gap with the wiring terminal, so that the barb member 3 can be stably embedded in the wiring terminal, so that the spring piece is not easy to be separated from the wiring bank. In this embodiment, the limited separation member 34 is arranged on both sides of the elastic member 37. In addition, the surface of the limited separation member 34 away from the bottom film 1 is formed with a downward pressing slope 35, and the downward pressing slope 35 is located at the side of the limited separation member 34 close to the inside of the wiring bank. The closer the downward pressing slope 35 is to the inside of the wiring bank, the smaller the gap between the side and the bottom film 1. In the process of placing the spring piece into the inside of the wiring bank, once the spring piece is too high, the inside of the wiring bank will first abut against the downward pressing slope 35, so as to force the spring piece to move down a certain height as a whole, so that the spring piece can be installed in place corresponding to the wiring bank.

[0046] Reference Figure 1 The bottom film 1 is fixedly connected with a reserved part 36 for clamping by a clamp or the like. The number and position of the reserved parts 36 are not limited. In this embodiment, the reserved parts 36 are arranged on both opposite sides of the bottom film 1, and the reserved parts 36 are located on the side of the bottom film 1 away from the inside of the terminal block.

[0047] The present application also discloses a wiring terminal. Figure 2 , including a terminal body 21 that abuts against the above-mentioned circuit board connecting spring sheet, the terminal body 21 is formed with a groove 22 for the barb piece 3 to enter, and the shape and position of the groove 22 are not subject to excessive restrictions and only need to be adapted to the barb piece 3.

[0048] The present application also discloses a wiring block, referring to Figure 3 and Figure 4 , including an insulating base 23 in which the above-mentioned circuit board connecting spring and a terminal are installed, a protrusion 24 capable of abutting against the separation limiting member 34 is formed in the insulating base 23, and the terminal is arranged inside the insulating base 23 by an integral injection molding process to ensure the stability of the terminal. The spring is installed corresponding to the insulating base 23 by subsequent insertion.

[0049] The present application also discloses a smart terminal, referring to Figure 5 , including a shell 25 in which the above-mentioned terminal block is installed, and a circuit board body 26 that can be plugged into the insulating base 23 so that the conductive contacts and the contact sheet 2 are in contact can be detachably connected in the shell 25.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A circuit board connecting elastic piece, comprising a bottom piece (1) connected to a wiring terminal, and a contact piece (2) connected to the bottom piece (1) and capable of contacting a conductive contact of the circuit board, characterized in that: The negative film (1) is formed with a barb member (3) that can be embedded in the terminal.

2. The connection spring piece for a circuit board according to claim 1, wherein: The position where the barb member (3) is connected to the negative film (1) is closer to the inside of the terminal than the position where the barb member (3) is away from the negative film (1).

3. The connecting spring piece for a circuit board according to claim 1, characterized in that: The negative film (1) is provided with a reinforcing piece (31). There is an included angle between the reinforcing piece (31) and the negative film (1). The reinforcing piece (31) is provided with a limit rebound member (32) that can abut against the surface of the contact piece (2) away from the negative film (1).

4. The circuit board connecting elastic piece according to claim 1, characterized in that: A convex portion (33) is formed on the side of the contact piece (2) facing away from the negative film (1). The surface of the convex portion (33) is arc-shaped and the arc-shaped surface contacts the conductive contact of the circuit board.

5. A circuit board connection elastic piece according to claim 1, characterized in that: The contact piece (2) is provided with a limit separation member (34) that can abut against the side inside the wiring row away from the negative film (1) so that the negative film (1) is pressed tightly against the terminal. The limit separation member (34) is formed with a downward pressing inclined surface (35). The downward pressing inclined surface (35) is located on the side of the limit separation member (34) close to the inside of the wiring row. The distance between the side of the downward pressing inclined surface (35) closer to the inside of the wiring row and the negative film (1) is smaller.

6. The connection elastic sheet for a circuit board according to claim 1, characterized in that: The negative film (1) is provided with a reserved member (36) for facilitating the transfer of the entire elastic piece.

7. The connection elastic piece for a circuit board according to claim 1, wherein: The contact piece (2) includes a rebound member (37) that can undergo elastic deformation, and a conduction member (38) connected to the side of the rebound member (37) away from the negative film (1) and capable of abutting against the conductive contact of the circuit board. An inner bending section (39) that bends towards the conduction member (38) is formed on the side of the rebound member (37) close to the negative film (1).

8. A terminal block, characterized in that: It includes a terminal body (21) connected to a circuit board connecting elastic piece according to any one of claims 1 to 7. The terminal body (21) is formed with a groove (22) for the barb member (3) to enter.

9. A wiring terminal block, characterized in that: It includes an insulating base (23) for mounting a circuit board connecting elastic piece according to any one of claims 1 to 7 and a wiring terminal according to claim 8. A convex member (24) that can abut against the limit separation member (34) is formed inside the insulating base (23).

10. An intelligent terminal, characterized in that: It includes a housing (25) for mounting a wiring row according to claim 9. A circuit board body (26) that can be inserted into the insulating base (23) so that the conductive contact and the contact piece (2) are in contact is provided inside the housing (25).

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