Plug board type connector

Abstract

The utility model provides a plugboard type connector, and belongs to the field of electric connectors. The plugboard type connector is used for connecting a circuit board and comprises a rubber shell, a conductive terminal and a secondary lock, a plurality of terminal holes are arranged side by side in the rubber shell along the left-right direction, a socket communicated with the terminal holes and used for inserting a plug-in part on a circuit board is arranged in the middle of the front end of the rubber shell, a plurality of conductive terminals are inserted into the terminal holes in a one-to-one correspondence manner, and each conductive terminal is provided with a power connection part in contact with a golden finger on the plug-in part. The secondary lock is installed on the rubber shell, and the secondary lock is provided with a locking part used for locking the conductive terminals and a locking part used for being connected with the circuit board in a positioning mode. The plugboard type connector is reasonable in structural design, can be quickly and effectively assembled with a circuit board, can ensure the electric conduction performance, and can reduce the overall height after assembly, thereby being beneficial to the thin design of products, and having good practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a plug-in type connector. Background Art

[0002] With the rapid development of the electronics industry, various portable electronic devices have been widely used in daily life. Electrical connectors are needed in portable electronic devices. The function of the electrical connector is to connect the wires to the circuit board. Most existing electrical connectors are fixed on the surface of the circuit board, and the conductive terminals on the electrical connectors are fixed to the circuit board by spot welding. The main problem with the above existing electrical connectors is that after being assembled with the circuit board, the electrical connector completely protrudes from the surface of one side of the circuit board, and the overall height dimension is relatively large (at least the sum of the thickness of the circuit board and the height of the electrical connector), which is not conducive to the thin design of the product. Utility Model Content

[0003] In this regard, the utility model provides a plug-in type connector, which is connected and assembled with a circuit board by plugging. The assembly is convenient and stable, the electrical conduction performance is guaranteed, and the overall height size is reduced after assembly.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a plug-in type connector, which is used for connecting a circuit board, and comprises a plastic shell, a conductive terminal and a secondary lock; a plurality of terminal holes are arranged side by side in the left-right direction in the plastic shell, a socket connected with the terminal holes and used for inserting a plug-in part on the circuit board is arranged in the middle of the front end of the plastic shell, a plurality of conductive terminals are plugged into the plurality of terminal holes one by one, each conductive terminal is provided with a power connection part contacting with a gold finger on the plug-in part, the secondary lock is installed on the plastic shell, and a locking part for locking the conductive terminal and a locking part for positioning and connecting with the circuit board are arranged on the secondary lock.

[0006] In some embodiments, the front end of the conductive terminal is provided with a conductive arm on the upper and lower sides of the socket, each conductive arm is provided with the power connection part extending into the socket, and the power connection part is a cantilever structure that elastically contacts the gold finger; gold fingers are correspondingly provided on the upper and lower sides of the plug-in part.

[0007] In some embodiments, each conductive arm is provided with two power connection parts, one in front and one in the back, and the power connection part is connected to the conductive arm where it is located as a whole.

[0008] In some embodiments, the power connection portion is bent with an arc corner facing away from the socket, and the outer arc surface of the arc corner contacts the gold finger.

[0009] In some embodiments, the upper part of the plastic shell is provided with an embedding groove extending in the left-right direction, and the bottom of the embedding groove is connected to each terminal hole, and the secondary lock has an embedding plate portion embedded in the embedding groove, a locking portion formed on the embedding plate portion and extending into the terminal hole, and two locking portions respectively provided at the left and right ends of the embedding plate portion, and the two locking portions are respectively located on the left and right sides of the plastic shell;

[0010] The edge of the circuit board is provided with a mounting groove for installing the plug-in connector, the plug-in portion is arranged in the mounting groove and faces the notch of the mounting groove, and locking structures cooperating with corresponding locking portions are arranged on both sides of the mounting groove.

[0011] In some embodiments, the locking portion is an elastic buckle extending downward; the locking structure is a slot provided on the circuit board, and the elastic buckle is engaged with the slot.

[0012] In some embodiments, the locking portion is a locking boss formed on the panel portion at a position corresponding to each terminal hole;

[0013] The conductive terminal is inserted into the terminal hole from the rear end of the terminal hole and when it is inserted into place, the locking boss extends into the terminal hole and locks the conductive terminal by abutting against the conductive terminal.

[0014] In some embodiments, the left and right sides of the plastic shell are provided with positioning slots extending in the front-to-back direction, the front end of the positioning slots is an open structure, and when the plastic shell is installed in the installation slot, the positioning slots form a plug-in fit with the slot edges on the corresponding sides of the installation slot.

[0015] In some embodiments, an anti-mistake rib is provided in the terminal hole, and a stop portion is provided on the conductive terminal, so that when the conductive terminal is inserted into the terminal hole in a forward direction, the anti-mistake rib and the stop portion are misaligned so that the conductive terminal can be inserted into place, and when the conductive terminal is inserted into the terminal hole in a reverse direction, the anti-mistake rib and the stop portion abut against each other to prevent the conductive terminal from being inserted into place.

[0016] The utility model has the positive effects: the plug-in connector structure in the utility model is optimized and designed. When the plug-in connector is connected to the circuit board, the socket on the plastic shell is plugged into the plug-in part on the circuit board, and the electrical connection is achieved by contacting the electrical connection part with the gold finger. The plug-in connector is connected to the circuit board by plugging, which is convenient for assembly. A secondary lock is further provided on the plastic shell, and the conductive terminal inserted into the terminal hole is locked by the locking part on the secondary lock to prevent the conductive terminal from loosening. In addition, a locking part is provided on the secondary lock, and the plastic shell and the circuit board are reliably connected by positioning the locking part and connecting it with the circuit board, so that reliable electrical conduction performance can be guaranteed. Moreover, after the plastic shell is connected to the circuit board, the overall height size is reduced, which is conducive to the thin design of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a structural diagram of the assembly of the plug-in board connector and the circuit board in the utility model;

[0019] Figure 2 This is a structural diagram of the plug-in board connector of the utility model when it is separated from the circuit board;

[0020] Figure 3 for Figure 1 A top view of the structure shown in;

[0021] Figure 4 For along Figure 3 Sectional view cut along line AA;

[0022] Figure 5 It is a side view of the plug-in board connector in the utility model;

[0023] Figure 6 This is an exploded view of the plug-in board connector in the utility model;

[0024] Figure 7 It is a schematic diagram of the structure of the conductive terminal in the utility model;

[0025] Figure 8 It is a cross-sectional structural view of the plastic shell in the utility model.

[0026] Markings shown in the attached drawings:

[0027] 1-circuit board; 10-installation slot; 101-slot edge; 11-plug-in part; 12-gold finger; 13-card slot;

[0028] 2-plastic shell; 20-embedded groove; 21-terminal hole; 22-socket; 23-positioning slot; 24-anti-error convex rib;

[0029] 3-conductive terminal; 31-electrical connection part; 32-conductive arm; 33-arc angle; 34-blocking part; 4-secondary lock; 41-locking part; 42-locking part; 43-panel part. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present utility model are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In the present utility model, unless otherwise clearly specified and limited, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] The plug-in connector structure in this embodiment is as follows Figures 1 to 4 As shown, the plug-in connector is used with a circuit board 1. The plug-in connector includes a plastic shell 2, a conductive terminal 3 and a secondary lock 4; a plurality of terminal holes 21 are arranged side by side in the left-right direction in the plastic shell 2, and a socket 22 for inserting the plug-in portion 11 on the circuit board 1 and communicating with the terminal hole 21 is arranged in the middle of the front end of the plastic shell 2, and a plurality of conductive terminals 3 are inserted into the plurality of terminal holes 21 one by one, and each conductive terminal 3 has a power connection portion 31 that contacts the gold finger 12 on the plug-in portion 11, and when wiring, the wire is connected to the end and the rear end of the conductive terminal 2, and the secondary lock 4 is installed on the plastic shell 2, and a locking portion 41 for locking the conductive terminal 3 and a locking portion 42 for positioning and connecting with the circuit board 1 are provided on the secondary lock 4; in Figure 1 In the XYZ three-dimensional coordinate system shown in , the X-axis points to the left-right direction, the Y-axis points to the up-down direction, and the Z-axis points to the front-back direction.

[0034] When the plug-in connector is connected to the circuit board 1, the socket 22 on the plastic shell 2 is plugged into the plug-in portion 11 on the circuit board 1, and the electrical connection is achieved by the contact between the power connection portion 31 and the gold finger 12. The plug-in connector is connected to the circuit board 1 by plugging, which is convenient for assembly. A secondary lock 4 is further provided on the plastic shell 2, and the conductive terminal 3 inserted into the terminal hole 21 is locked by the locking portion 41 on the secondary lock 4 to prevent the conductive terminal 3 from loosening. A locking portion 42 is also provided on the secondary lock 4. The locking portion 42 is positioned and connected to the circuit board 1 to ensure that the plastic shell 2 is reliably connected to the circuit board 1, so that reliable electrical conduction performance can be guaranteed; and after the plastic shell 2 is connected to the circuit board 1, the overall height size is reduced, which is conducive to the thin design of the product.

[0035] See also Figure 4 and Figure 7 As shown, in order to ensure the electrical conductivity between the conductive terminal 3 and the circuit board 1, in this embodiment, a conductive arm 32 is provided at the upper and lower sides of the socket 22 at the front end of the conductive terminal 3, and each conductive arm 32 is provided with the power connection portion 31 extending into the socket 22, and the power connection portion 31 is a cantilever structure elastically contacting the gold finger 12; the gold fingers 12 are correspondingly arranged on the upper and lower sides of the plug-in portion 11, and two conductive arms 32 are arranged one above and one below on the conductive terminal 3, and the power connection portion 31 is arranged on each conductive arm 32, and the gold fingers 12 are arranged on the upper and lower sides of the plug-in portion 11 of the circuit board 1. When the plug-in connector is assembled with the circuit board 1, the plug-in portion 11 is inserted into the socket 22 of the plastic shell 2, and the power connection portions 31 on the conductive arms 32 on the upper and lower sides are in contact with the corresponding gold fingers 12, thereby ensuring the electrical conductivity; and the power connection portion 31 is arranged as a cantilever structure with good elasticity, so that the power connection portion 31 can maintain reliable contact with the gold finger 12.

[0036] Further, see Figure 4 and Figure 7 As shown, two power connection parts 31 are provided on each conductive arm 32, one in front and one in the back. The power connection part 31 is connected to the conductive arm 32 where it is located. By providing two power connection parts 31 on each conductive arm 32, the two power connection parts 31 on each conductive arm 32 can contact with the same gold finger, thereby increasing the contact points and further ensuring the electrical conduction performance.

[0037] In this embodiment, the power connection portion 31 is bent with an arc corner 33 facing away from the socket 22, and the outer arc surface of the arc corner 33 contacts the gold finger 12. This arrangement prevents the power connection portion 31 from scratching the gold finger 12, thereby ensuring the performance.

[0038] Combination Figures 2 to 6As shown, the upper part of the plastic shell 2 is provided with an embedding groove 20 extending in the left-right direction, and the bottom of the embedding groove 20 is communicated with each terminal hole 21, the secondary lock 4 has an embedding plate part 43 embedded in the embedding groove 20, the locking part 41 formed on the embedding plate part 43 and extending into the terminal hole 21, and two locking parts 42 respectively arranged at the left and right ends of the embedding plate part 43. The embedding of the embedding plate part 43 in the embedding groove 20 can strengthen the positioning of the secondary lock 4, and the two locking parts 42 are respectively located on the left and right sides of the plastic shell 2; the edge of the circuit board 1 is provided with a mounting groove 10 for mounting the plug-in connector, the plug-in part 11 is arranged in the mounting groove 10 and faces the notch of the mounting groove 10, and locking structures matched with the corresponding locking parts 42 are arranged on both sides of the mounting groove 10; in this way, the two locking parts 42 are locked and connected with the two locking structures on the circuit board 1, so that the plug-in connector and the circuit board 1 are assembled more securely.

[0039] More specifically, the locking portion 42 is an elastic buckle extending downward; the locking structure is a card slot 13 provided on the circuit board 1. When the circuit board 1 is assembled and connected with the connector, after the connector is installed into the installation slot 10, the secondary lock 4 is installed on the plastic shell 1 from top to bottom, and when the secondary lock 4 is in place, the embedded plate portion 43 is embedded in the embedded slot 20. At the same time, the elastic buckle forms a snap fit with the card slot 13, thereby locking the secondary lock 4 on the circuit board 1.

[0040] In some embodiments, the locking portion 41 is a locking boss formed on the insert portion 43 at a position corresponding to each terminal hole 21; the conductive terminal 3 is inserted forward into the terminal hole 21 from the rear end of the terminal hole 21 and when it is inserted into place, the locking boss extends into the terminal hole 21 and locks the conductive terminal 3 by abutting against the conductive terminal 3, thereby preventing the conductive terminal 3 from loosening.

[0041] In order to enhance the positioning of the connector, Figure 2 As shown, the left and right sides of the plastic shell 2 are provided with positioning slots 23 extending along the front-to-back direction, and the front end of the positioning slots 23 is an open structure. When the plastic shell 2 is installed in the mounting slot 10 on the circuit board 1, the positioning slots 23 and the groove edges 101 on the corresponding sides of the mounting slot 10 form a plug-in fit, so that the circuit board 1 can support and limit the plug-in connector, thereby enhancing the positioning effect of the plastic shell 2 to ensure the stability of the connector installed on the circuit board 1.

[0042] In some embodiments, see Figure 7 and Figure 8As shown, in order to prevent the conductive terminal 3 from being installed in the wrong direction when inserted into the terminal hole 21, an anti-error rib 24 is provided in the terminal hole 21, and a stopper 34 is provided on the conductive terminal 3, so that when the conductive terminal 3 is forwardly inserted into the terminal hole 21, the anti-error rib 24 and the stopper 34 are misaligned so that the conductive terminal 3 can be inserted into place, and when the conductive terminal 3 is reversely inserted into the terminal hole 21, the anti-error rib 24 and the stopper 34 abut against each other to block the conductive terminal 3 from being inserted into place; in this way, the conductive terminal 3 can be prevented from being reversely installed into the terminal hole 21, ensuring that the conductive terminal 3 is installed into the terminal hole 21 according to the preset direction, thereby ensuring product quality.

[0043] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A plug-in connector for connecting a circuit board (1), comprising a plastic shell (2), a conductive terminal (3) and a secondary lock (4); a plurality of terminal holes (21) are arranged side by side in the left-right direction in the plastic shell (2); a socket (22) is arranged in the middle of the front end of the plastic shell (2) and is connected to the terminal hole (21) for inserting a plug-in portion (11) on the circuit board (1); a plurality of conductive terminals (3) are inserted into the plurality of terminal holes (21) one by one; each conductive terminal (3) has a power connection portion (31) that contacts a gold finger (12) on the plug-in portion (11); the secondary lock (4) is mounted on the plastic shell (2), characterized in that: The secondary lock (4) is provided with a locking portion (41) for locking the conductive terminal (3) and a locking portion (42) for positioning and connecting with the circuit board (1).

2. The board-type connector according to claim 1, characterized in that: The front end of the conductive terminal (3) is provided with a conductive arm (32) on the upper and lower sides of the socket (22), and each conductive arm (32) is provided with the power connection part (31) extending into the socket (22), and the power connection part (31) is a cantilever structure elastically contacting the gold finger (12); the gold fingers (12) are correspondingly provided on the upper and lower sides of the plug-in part (11).

3. The plug-in connector according to claim 2, characterized in that: Each conductive arm (32) is provided with two power connection parts (31), one in front and one in the back. The power connection part (31) is connected as a whole with the conductive arm (32) where it is located.

4. The board-type connector according to claim 2, characterized in that: The power connection portion (31) is bent with an arc corner (33) facing away from the socket (22), and the outer arc surface of the arc corner (33) is in contact with the gold finger (12).

5. The board-type connector according to claim 1, characterized in that: The upper part of the plastic shell (2) is provided with an embedding groove (20) extending in the left-right direction, and the bottom of the embedding groove (20) is communicated with each terminal hole (21), and the secondary lock (4) comprises an embedding plate portion (43) embedded in the embedding groove (20), a locking portion (41) formed on the embedding plate portion (43) and extending into the terminal hole (21), and two locking portions (42) respectively arranged at the left and right ends of the embedding plate portion (43), and the two locking portions (42) are respectively located on the left and right sides of the plastic shell (2); The edge of the circuit board (1) is provided with a mounting groove (10) for mounting the plug-in connector, the plug-in portion (11) is arranged in the mounting groove (10) and faces the notch of the mounting groove (10), and locking structures cooperating with corresponding locking portions (42) are arranged on both sides of the mounting groove (10).

6. The board-type connector according to claim 5, characterized in that: The locking portion (42) is an elastic buckle extending downward; the locking structure is a slot (13) provided on the circuit board (1), and the elastic buckle is engaged with the slot (13).

7. The board-type connector according to claim 5, characterized in that: The locking portion (41) is a locking boss formed on the panel portion (43) at a position corresponding to each terminal hole (21); The conductive terminal (3) is inserted forwardly into the terminal hole (21) from the rear end of the terminal hole (21) and when inserted into place, the locking boss extends into the terminal hole (21) and locks the conductive terminal (3) by abutting against the conductive terminal (3).

8. The board-type connector according to claim 5, characterized in that: The left and right sides of the plastic shell (2) are provided with positioning slots (23) extending in the front-to-back direction, and the front end of the positioning slots (23) is an open structure. When the plastic shell (2) is installed in the installation slot (10), the positioning slots (23) and the groove edges (101) on the corresponding sides of the installation slot (10) form a plug-in fit.

9. The board-type connector according to any one of claims 1 to 8, characterized in that: An anti-mistake convex rib (24) is provided in the terminal hole (21), and a stopper (34) is provided on the conductive terminal (3), so that when the conductive terminal (3) is inserted into the terminal hole (21) in the forward direction, the anti-mistake convex rib (24) and the stopper (34) are misaligned so that the conductive terminal (3) can be inserted into place, and when the conductive terminal (3) is inserted into the terminal hole (21) in the reverse direction, the anti-mistake convex rib (24) and the stopper (34) abut against each other to prevent the conductive terminal (3) from being inserted into place.

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