A PCB connector with CPA lock block

Abstract

The utility model provides a PCB board connector with a CPA lock block, including a base, a terminal and a CPA lock block; the front end of the base is provided with a socket for inserting a gold finger part on the PCB board, the terminal is installed in the base, and the front part of the terminal is provided with a contact part extending into the socket; at least one side of the base is provided with an elastic buckle suitable for clamping with the PCB board, one end of the elastic buckle is fixedly connected to the side of the front end of the base, and the other end is extended backward; the CPA lock block is arranged between the base and the elastic buckle and can move forward and backward, and has a locking position and an unlocking position; the CPA lock block limits the elastic buckle to move toward the base when it is in the locking position, and does not limit the elastic buckle to move toward the base when it is in the unlocking position. The PCB board connector structure in the utility model is optimized and designed, and can effectively ensure the stability of the connection between the PCB board connector and the PCB board when in use, and has good practicality and popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric connectors, and in particular relates to a PCB board connector with a CPA locking block. Background Art

[0002] Electrical connectors are widely used in the transmission of power or signals, serving as transitional connections between wires and circuit boards, or between two circuit boards in a system.

[0003] Patent document CN220605114U discloses a lockable connector assembly, which includes a wire end connector, a plurality of wires, a board end connector, and a plurality of terminals. The wire end connector includes a first body and two locking members, the first body has two flexible positioning members and two side guide grooves, the locking members can be movably arranged in the side guide grooves, and can move between an initial position and a plug-in position, the locking members are away from the flexible positioning members in the initial position, and abut against the flexible positioning members in the plug-in position; the wire is passed through the first body; the board end connector includes a second body, the second body has a accommodating space, and the accommodating space is provided for the first body; the terminal is partially extended and arranged in the second body. When the connector assembly in the patent document is installed and used, it is necessary to install the wire end connector at the end of the wire, install the board end connector on the circuit board, and realize the electrical connection between the wire and the circuit board by plugging and matching the wire end connector and the board end connector. The overall structure of the connector is relatively complex, and the manufacturing and use costs are high.

[0004] In addition, patent document CN115117661A discloses a wire-to-board connector for electrically connecting a wire, which can be respectively in a first operating state or a second operating state to complete or release the electrical connection to a circuit board. The wire-to-board connector includes: at least one conductive terminal, the conductive terminal has a connection end and a welding end, and can be in a first shape or a second shape; an insulating seat, the insulating seat provides positioning for the conductive terminal, and has a plugging operation structure and a welding operation structure, the plugging operation structure is provided for the circuit board to perform a The plugging operation is used to plug the circuit board into the insulating seat, and the welding operation structure exposes the welding end to provide a welding operation for the welding end. The welding operation is used to weld the wire to the welding end to complete the electrical connection of the conductive terminal to the wire; wherein, when in the first operating state, the circuit board is plugged into the insulating seat, and the conductive terminal is in the first shape, so that the overlapping end completes the electrical overlapping of the circuit board; and when in the second operating state, the circuit board leaves the insulating seat, and the conductive terminal is in the second shape, so that the overlapping end releases the electrical overlapping of the circuit board. The wire-to-board connector in this patent document can directly realize the connection between the circuit board and the wire, which is not only simple in structure, can reduce the manufacturing cost and use cost, but also can reduce the installation thickness.

[0005] However, the wire-to-board connector and the circuit board in the above patent document cannot be effectively locked when connected, and the connection firmness between the two is poor. In actual use, there is a risk of abnormal disconnection between the wire-to-board connector and the circuit board, resulting in connection failure. Utility Model Content

[0006] In view of this, the utility model provides a PCB connector with a CPA lock block to solve the deficiencies pointed out in the background technology.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The utility model provides a PCB board connector with a CPA lock block, comprising a base and a terminal;

[0009] The front end of the base is provided with a socket for inserting the gold finger part on the PCB board, the terminal is installed in the base, and the terminal is provided with a contact part extending into the socket; at least one side of the base is provided with an elastic buckle suitable for clamping with the PCB board, one end of the elastic buckle is fixedly connected to the side of the front end of the base, and the other end is extended backward;

[0010] It also includes a CPA locking block, which is movably arranged between the base and the elastic buckle and has a locking position and an unlocking position; when the CPA locking block is in the locking position, it limits the elastic buckle from moving toward the base, and when the CPA locking block is in the unlocking position, it does not limit the elastic buckle from moving toward the base.

[0011] In some embodiments, the CPA lock block includes a top block disposed at the rear end, and a first elastic arm and a second elastic arm extending forward, the first elastic arm is provided with a first clamping platform, and the second elastic arm is provided with a second clamping platform;

[0012] The elastic buckle is provided with a buckle platform, a front slot hole and a rear slot hole respectively located at the front and rear sides of the buckle platform;

[0013] The side of the base is provided with a stopper toward the elastic buckle;

[0014] When the CPA lock block is in the unlocked position, the second clamping platform is hooked with the stopper to limit the CPA lock block from sliding backwards. At this time, the first clamping platform is in the rear slot and is suitable for limiting the CPA lock block from sliding forwards by abutting against the front of the first clamping platform and the rear end of the buckle platform;

[0015] When the CPA lock block is in the locking position, the top block is suitable for supporting the elastic buckle, and the first clamping platform extends into the front slot hole. The front end of the buckle platform blocks the first clamping platform to limit the CPA lock block from sliding backward.

[0016] In some embodiments, a first stopper protruding outward is provided at the rear end of the CPA locking block, and a front portion of the first stopper is adapted to abut against a rear end portion of the elastic buckle when the CPA locking block is in a locked position.

[0017] In some embodiments, the first stopper is a wedge-shaped block structure, and a wedge-shaped surface is provided at the front of the first stopper.

[0018] In some embodiments, a second stopper protruding outward is provided at the rear end of the CPA lock block, and a front portion of the second stopper is adapted to abut against a rear end portion of the base when the CPA lock block is in a locked position.

[0019] In some embodiments, two upper and lower opposite slide grooves are provided on the side of the base, the slide grooves extend along the front-to-back direction, and the stop parts are provided in the two slide grooves. There are two second elastic arms, and the second clamps on the two second elastic arms extend into the two slide grooves respectively.

[0020] In some embodiments, the stopper is a convex block or a concave groove structure.

[0021] In some embodiments, the elastic buckle is provided on one side of the base, the front slot has an insertion opening facing forward, and a slot extending along the front-to-back direction is provided on the other side of the base opposite to the elastic buckle, and the front slot and the slot are suitable for inserting the card edge on the PCB board.

[0022] In some embodiments, the front part of the terminal is provided with conductive arms on the upper and lower sides of the socket, and the conductive arms are provided with the contact part and a supporting part that elastically supports the contact part, and the contact part is a V-shaped structure facing away from the socket; the rear end of the terminal is provided with a wiring part for connecting the wire.

[0023] In some embodiments, a TPA locking block is installed at the rear end of the base, and the TPA locking block has a retaining plug inserted from the rear end of the base and abutting against the terminal, and a buckle engaged with a clamping block on the outer side of the base.

[0024] The PCB board connector of the utility model has the positive effects: the PCB board connector of the utility model is optimized in design, and the PCB board connector can be directly connected with the PCB board without setting the line end connector and the board end connector at the same time, which simplifies the structure, facilitates assembly and production, can reduce the manufacturing and use costs, and reduce the thickness of the PCB board connector installation part; and the PCB board connector can be firmly connected to the PCB board, effectively avoiding abnormal disengagement, and ensuring the reliability of installation and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 This is a schematic diagram of the structure of the PCB board connector (the CPA lock block is in the locked position) in the utility model;

[0027] Figure 2 for Figure 1 A side view of the PCB connector shown;

[0028] Figure 3 This is a schematic diagram of the structure of the PCB board connector (the CPA lock block is in the unlocked position) in the utility model;

[0029] Figure 4 for Figure 3 A side elevation view of the PCB connector shown;

[0030] Figure 5 For along Figure 4 Sectional view cut along line AA;

[0031] Figure 6 for Figure 4 A top view of the PCB connector shown;

[0032] Figure 7 For along Figure 6 Sectional view cut along the midline BB;

[0033] Figure 8 For along Figure 6 Sectional view cut along the CC line;

[0034] Fig. 9 It is a structural schematic diagram of the base in the utility model;

[0035] Fig.10 This is a front view of the CPA lock block in the utility model;

[0036] Fig.11 Another front view of the CPA lock block in the utility model;

[0037] Fig.12 It is a three-dimensional structural schematic diagram of the CPA lock block in the utility model;

[0038] Fig.13 This is an exploded view of the PCB connector in the utility model;

[0039] Fig.14 This is a structural schematic diagram of the connection state between the PCB board connector and the PCB board in the utility model;

[0040] Fig.15 This is a structural schematic diagram of the PCB connector and the PCB board in the present utility model in a separated state;

[0041] Fig.16 A cross-sectional view of the connection state between the PCB board connector and the PCB board (the TPA lock block is in the unlocked position) in the utility model;

[0042] Fig.17 It is a cross-sectional view of the connection state between the PCB board connector and the PCB board in the utility model (the TPA lock block is in the locking position).

[0043] The reference numerals shown in the figure are: 1-base; 11-socket; 12-elastic buckle; 121-buckle platform; 122-front slot; 123-rear slot; 13-stop portion; 14-slide; 15-block; 16-slot; 2-terminal; 20-contact portion; 21-conductive arm; 22-wiring portion; 23-support portion; 3-CPA lock block; 30-top block; 31-first elastic arm; 311-first card platform; 32-second elastic arm; 321-second card platform; 33-first stop block; 331-wedge surface; 34-second stop block; 4-PCB board; 40-card edge; 41-gold finger portion; 42-card bulge; 5-wire; 6-TPA lock block; 61-retractable plug platform; 62-buckle. DETAILED DESCRIPTION

[0044] 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.

[0045] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship and movement of the components under a certain posture (as shown in the drawings). If the certain posture changes, the directional indication will also change accordingly. In the present invention, unless otherwise clearly specified and limited, the terms "connect", "fixed", etc. should be understood in a broad sense. For example,

[0046] "Fixed" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection 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 this utility model can be understood according to specific circumstances.

[0047] 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.

[0048] like Figures 1 to 17 As shown, the PCB board connector in the embodiment of the utility model includes a base 1 and a terminal 2; the front end of the base 1 is provided with a socket 11 for inserting the gold finger part 41 on the PCB board 4, the terminal 2 is installed in the base 1, and the rear end of the terminal 2 is provided with a wiring part 22, and the wire 5 is connected through the wiring part 22; the terminal 2 is provided with a contact part 20 extending into the socket 11, when in use, the terminal 2 on the PCB board connector is connected to the wire 5, and then the PCB board connector is plugged with the gold finger part 41 on the PCB board 4 to contact the gold finger part 41 through the contact part 20, so as to realize the electrical connection between the wire 5 and the PCB board 4, the structure of the PCB board connector is relatively simplified, and the manufacturing cost and customer purchase cost are reduced; and the thickness of the installation part of the PCB board connector can be reduced.

[0049] In order to ensure that the PCB board 4 is reliably connected to the PCB board connector, an elastic buckle 12 suitable for engaging with the PCB board 4 is provided on at least one side of the base 1. One end of the elastic buckle 12 is fixedly connected to the front end side of the base 1, and the other end is extended backward. After the PCB board connector is connected to the PCB board 4, the elastic buckle 12 is engaged with the PCB board 4 to achieve locking, thereby preventing the PCB board connector from detaching from the PCB board 4. When the PCB board connector needs to be removed from the PCB board 4, the elastic buckle 12 is pressed toward the base 1 to release the engagement with the PCB board 4, and the PCB board connector can be removed. Furthermore, in order to prevent the elastic buckle 12 from being abnormally unlocked, a CPA lock block 3 (CPA, i.e. Connector Position Assurance: a connector position retaining component used for secondary locking of the connector) is provided on the PCB board connector.

[0050] The CPA lock block 3 is arranged between the base 1 and the elastic buckle 12 and can be moved forward and backward. The CPA lock block 3 can have a locking position and an unlocking position relative to the base 1; Figure 1 to Figure 2As shown, the CPA lock block 3 limits the elastic buckle 12 from moving toward the base 1 when in the locked position. In this state, the elastic buckle 12 can be ensured to maintain a clamping state with the PCB board 4, thereby preventing the elastic buckle 12 from being unlocked abnormally, and effectively ensuring the reliability of the connection between the PCB board 4 and the PCB board connector; Figures 3 to 6 As shown, the CPA lock block 3 does not restrict the elastic buckle 12 from moving toward the base 1 when in the unlocked position, so that in this state the elastic buckle 12 can be pressed toward the base 1 for normal unlocking, and the PCB board connector can be removed from the PCB board 4 after the elastic buckle 12 and the PCB board 4 are released from the clamping connection; before installing the PCB board connector on the PCB board 4, the CPA slider 3 should be in the unlocked position, and after the PCB board connector is installed on the PCB board 4, the CPA slider 3 is moved from the unlocked position to the locked position; in order to facilitate customer installation and use, the CPA lock block 3 can be pre-installed in the unlocked position when the PCB board connector leaves the factory.

[0051] In some embodiments, Figures 10 to 12 As shown, the CPA lock block 3 includes a top block 30 arranged at the rear end, and a first elastic arm 31 and a second elastic arm 32 extending forward, the first elastic arm 31 is provided with a first clamping platform 311, and the second elastic arm 32 is provided with a second clamping platform 321; the elastic buckle 12 is provided with a clamping platform 121, and a front slot hole 122 and a rear slot hole 123 are respectively located on the front and rear sides of the clamping platform 121; the side of the base 1 is provided with a stopper 13 facing the elastic buckle 12; when the CPA lock block 3 is in the unlocked position, the second clamping platform 321 is hooked with the stopper 13 to limit the CPA lock block 3 from sliding backward, at this time, the first clamping platform 311 is in the rear slot hole 123, and is suitable for limiting the CPA lock block 3 from sliding backward by the front part of the first clamping platform 311 and the rear end of the clamping platform 121. The first clamping platform 311 of the second clamping platform 321 is used to prevent the CPA lock block 3 from sliding backwards. In this state, the CPA lock block 3 cannot slide backwards because of the cooperation between the stopper 13 and the second clamping platform 321, and the first clamping platform 311 and the stopper 13 can prevent the CPA slider 3 from sliding forwards, thereby limiting the CPA lock block 3 in the unlocked position; by pushing the CPA lock block 3 forward, the CPA lock block 3 is moved from the unlocked position to the locked position. When the CPA lock block 3 is in the locked position, the top block 30 is suitable for supporting the elastic buckle 12, and the first clamping platform 311 extends into the front slot 122. The front end of the buckle platform 121 resists the first clamping platform 311 to limit the CPA lock block 3 from sliding backwards, thereby limiting the CPA slider 3 in the locked position; the structure of the PCB board 4 matching the PCB board connector can be seen in FIG. Fig.15 As shown;

[0052] See also Figures 14 to 17As shown, due to the adoption of the above structure, when the PCB connector is installed on the PCB 4, the gold finger portion 41 is fully inserted into the socket 11 when the CPA lock block 3 is in the unlocked position, and the clamping protrusion 42 on the PCB 4 extends into the rear slot 123, and the elastic buckle 12 is clamped with the PCB 4 by the rear end of the clamping platform 121 abutting against the inner side of the clamping protrusion 42. In this state, the clamping protrusion 42 pushes the first clamping platform 311 inwardly out of the rear slot 123, so that when the CPA lock block 3 is pushed forward, the clamping platform 121 will not be pressed against the first clamping platform 311. When the CPA lock block 3 is in the locked position, the first clamping platform 311 extends into the front slot 122 and contacts the front portion of the stop platform 121 through the rear portion of the first clamping platform 311, thereby limiting the CPA lock block 3 in the locked position. At this time, the top block 30 supports the elastic buckle 12 so that the elastic buckle 12 cannot move toward the base 1, thereby keeping the elastic buckle 12 and the PCB board 4 in a clamped state to prevent the elastic buckle 12 from being unlocked abnormally, thereby ensuring the reliability of the connection between the PCB board connector and the PCB board 4.

[0053] like Figures 1 to 6 As shown, a first stopper 33 protruding outward is provided at the rear end of the CPA lock block 3. When the CPA lock block 3 is in the locked position, the front portion of the first stopper 33 is suitable for abutting against the rear end portion of the elastic buckle 12, thereby playing a stopping and limiting role for the CPA lock block 3, and force can also be applied through the first stopper 33 when the CPA lock block 3 is pulled backward; further, the first stopper 33 is set to be a wedge block structure, and a wedge surface 331 is provided at the front portion of the first stopper 33, so that when the CPA lock block 3 is in the locked position, a flared gap is generated between the wedge surface 331 and the rear end portion of the elastic buckle 12, thereby facilitating the insertion of a fingernail to pull the CPA lock block 3 backward.

[0054] As an extension or variation of the above embodiment: Figure 3 As shown, the rear end of the CPA lock block 3 is provided with a second stopper 34 protruding outward, and when the CPA lock block 3 is in the locked position, the front part of the second stopper 34 is suitable for abutting against the rear end of the base 1, thereby playing a stopping and limiting role for the CPA lock block 3.

[0055] In some embodiments, Figure 8 and Fig. 9As shown, two upper and lower opposite slide grooves 14 are provided on the side of the base 1, and the slide grooves 14 are extended in the front-to-back direction, and the stop parts 13 are provided in the two slide grooves 14. There are two second elastic arms 32, and the second clamping platforms 321 on the two second elastic arms 32 extend into the two slide grooves 14 respectively. The two second clamping platforms 321 cooperate with the slide grooves 14 to guide the forward and backward movement of the CPA lock block 3, and when the CPA lock block 3 is in the unlocked position, the two second clamping platforms 321 are hooked and cooperated with the two stop parts 13 to better limit the CPA slider 3 to prevent the CPA slider 3 from falling off.

[0056] See also Figure 8 and Fig. 9 As shown, in this embodiment, the stopper 13 is configured as a convex block structure. When the CPA lock block 3 is in the unlocked position, the rear portion of the first clamping platform 311 on the first elastic arm 31 plays a rearward limiting role by hooking with the front portion of the convex block structure. As a variation, in actual operation, the stopper 13 can also be configured as a groove structure. When the CPA lock block 3 is in the unlocked position, the first clamping platform 311 cooperates with the groove structure to hook, thereby playing a rearward limiting role on the CPA lock block 3 to prevent the CPA lock block 3 from falling off.

[0057] like Figure 7 As shown, conductive arms 21 are provided at the front of the terminal 2 on both the upper and lower sides of the socket 11, and the conductive arms 21 are provided with the contact portion 20 and the support portion 23 for elastically supporting the contact portion 20, and the contact portion 20 is a V-shaped structure facing away from the socket 11. After the gold finger portion 41 is inserted into the socket 11, the two conductive arms 21 on the same terminal 2 are respectively located at the upper and lower sides of the gold finger portion 41, so that electrical conduction is achieved through the contact portions 20 on the two conductive arms 21 respectively contacting the conductive layers on the upper and lower sides of the gold finger portion 41 (connected to the internal circuits of the PCB board 4), the contact surface is increased, and the electrical connection is more reliable; the contact portion 20 is supported by the support portion 23, thereby enhancing the contact pressure between the contact portion 20 and the gold finger portion 41, and further ensuring the reliability of the electrical connection.

[0058] In some embodiments, Figures 13 to 15 As shown, the elastic buckle 12 is provided on one side of the base 1, and the front slot 122 has an insertion opening facing forward. The other side of the base 1 opposite to the elastic buckle 12 is provided with a slot 16 extending along the front-to-back direction, and the front slot 122 and the slot 16 are suitable for inserting the card edge 40 on the PCB board 4, thereby strengthening the connection strength between the PCB board 4 and the PCB board connector.

[0059] In some embodiments, Figure 7 and Fig.13As shown, in order to strengthen the firmness of the terminal 2 installed in the base 1, a TPA lock block 6 (TPA, i.e., Terminal Position Assurance: a terminal secondary locking structure, which is used for secondary locking of the terminal) is installed at the rear end of the base 1. The TPA lock block 6 has a retaining platform 61 inserted from the rear end of the base 1 and abutting against the terminal 2, and a buckle 62 engaged with the block 15 on the outside of the base 1; the retaining platform 61 is used to abut against the terminal 2 to strengthen the locking of the terminal 2, thereby preventing the terminal 2 from being pulled out from the rear end of the base 1 when the wire 5 is pulled by external force, and the engagement of the buckle 62 with the block 15 can quickly and effectively lock the TPA lock block 6 on the base 1.

[0060] 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 PCB connector with a CPA lock block, comprising a base (1) and a terminal (2); The front end of the base (1) is provided with a socket (11) for inserting a gold finger portion (41) on a PCB board (4); the terminal (2) is installed in the base (1); the terminal (2) is provided with a contact portion (20) extending into the socket (11); at least one side of the base (1) is provided with an elastic buckle (12) suitable for clamping with the PCB board (4); one end of the elastic buckle (12) is fixedly connected to the side portion of the front end of the base (1), and the other end is extended backward; It is characterized in that The invention also comprises a CPA locking block (3), which is arranged between the base (1) and the elastic buckle (12) so as to be movable forward and backward, and has a locking position and an unlocking position; when the CPA locking block (3) is in the locking position, it restricts the elastic buckle (12) from moving in the direction of the base (1), and when the CPA locking block (3) is in the unlocking position, it does not restrict the elastic buckle (12) from moving in the direction of the base (1).

2. The PCB connector with CPA lock block according to claim 1, characterized in that: The CPA locking block (3) comprises a top block (30) arranged at the rear end, and a first elastic arm (31) and a second elastic arm (32) extending forward, wherein the first elastic arm (31) is provided with a first clamping platform (311), and the second elastic arm (32) is provided with a second clamping platform (321); The elastic buckle (12) is provided with a buckle platform (121), a front slot hole (122) and a rear slot hole (123) respectively located at the front and rear sides of the buckle platform (121); A stopper (13) is provided on the side of the base (1) facing the elastic buckle (12); When the CPA lock block (3) is in the unlocked position, the second clamping platform (321) is hooked with the stopper (13) to limit the CPA lock block (3) from sliding backwards. At this time, the first clamping platform (311) is in the rear slot (123) and is suitable for limiting the CPA lock block (3) from sliding forwards by abutting the front of the first clamping platform (311) against the rear end of the clamping platform (121); When the CPA locking block (3) is in the locking position, the top block (30) is suitable for supporting the elastic buckle (12), and the first clamping platform (311) extends into the front slot hole (122), and the front end of the buckle platform (121) blocks the first clamping platform (311) to limit the CPA locking block (3) from sliding backwards.

3. The PCB connector with CPA lock block according to claim 2, characterized in that: A first stopper (33) protruding outward is provided at the rear end of the CPA lock block (3); when the CPA lock block (3) is in the locked position, the front portion of the first stopper (33) is adapted to abut against the rear end portion of the elastic buckle (12).

4. The PCB connector with CPA lock block according to claim 3, characterized in that: The first stopper (33) is a wedge-shaped block structure, and a wedge-shaped surface (331) is provided at the front of the first stopper (33).

5. The PCB connector with CPA lock block according to claim 2, characterized in that: A second stopper (34) protruding outward is provided at the rear end of the CPA lock block (3); when the CPA lock block (3) is in the locked position, the front portion of the second stopper (34) is adapted to abut against the rear end portion of the base (1).

6. The PCB connector with CPA lock block according to claim 2, characterized in that: The side surface of the base (1) is provided with two upper and lower opposite slide grooves (14), the slide grooves (14) are extended in the front-back direction, and the stopper (13) is arranged in both slide grooves (14), there are two second elastic arms (32), and the second clamping platforms (321) on the two second elastic arms (32) extend into the two slide grooves (14) respectively.

7. The PCB connector with CPA lock block according to claim 2, characterized in that: The stopper (13) is a convex block or a concave groove structure.

8. The PCB connector with CPA lock block according to claim 2, characterized in that: The base (1) is provided with the elastic buckle (12) on one side, the front slot hole (122) has an insertion opening facing forward, and the base (1) is provided with a slot (16) extending in the front-to-back direction on the other side opposite to the elastic buckle (12), and the front slot hole (122) and the slot (16) are suitable for inserting the card edge (40) on the PCB board (4).

9. The PCB connector with CPA lock block according to claim 1, characterized in that: The front part of the terminal (2) is provided with conductive arms (21) on both upper and lower sides of the socket (11); the conductive arms (21) are provided with the contact portion (20) and a support portion (23) for elastically supporting the contact portion (20); the contact portion (20) is a V-shaped structure facing away from the socket (11); and the rear end of the terminal (2) is provided with a wiring portion (22) for connecting a wire (5).

10. The PCB connector with a CPA lock block according to any one of claims 1 to 9, characterized in that: A TPA locking block (6) is installed at the rear end of the base (1), and the TPA locking block (6) comprises a stopper (61) inserted from the rear end of the base (1) and pressed against the terminal (2), and a buckle (62) engaged with a clamping block (15) on the outside of the base (1).

Images