Connector to the substrate

Abstract

This utility model discloses a connector for connecting a substrate. The insulating body has an insertion channel with openings at the top and bottom. The first terminal includes a holding part and an elastic contact arm for clamping the conductive substrate for conduction. The second terminal includes a terminal body, a first snap and a pin disposed on either side of the terminal body. The terminal cover includes a cover body and pins. A plurality of second terminals are arranged in a front-to-back direction to form a second terminal group. The terminal cover is disposed on the side of the second terminal group with the first snap. The terminal cover and the second terminal group are fixedly inserted into the insertion channel. The pins of the terminal cover and the second terminal are stopped on the outer side of the lower end of the insulating body. The holding parts of the plurality of first terminals are tightly inserted into the gap between two adjacent second terminals or between the second terminal and the terminal cover. The second snap on the side wall of the holding part of the first terminal is engaged with the first snap. This utility model realizes the absorption of torsional deviations of the conductive substrate in the longitudinal, transverse and horizontal directions by the connector.

Description

Technical Field

[0001] This utility model relates to a connector, and more particularly to a connector for connecting a substrate. Background Technology

[0002] The current connector structure of the connecting substrate is an integrated metal terminal 6 with two elastic contact arms at the upper end for clamping the conductive substrate to achieve signal transmission, and two retaining arms at the lower end that can swing elastically left and right. The retaining arms are designed with barbs. During assembly, the integrated metal terminal is fixed to the insulating body of the plastic material through the barb structure, and the PCB board is soldered to the lower end through the pins.

[0003] When establishing an electrical connection between the conductive substrate and the PCB board, various processing and assembly deviations can cause misalignment between the socket positions of the elastic contact arms of the connector soldered onto the PCB board and the conductive substrate. This makes it difficult to smoothly insert the conductive substrate into the socket formed between the connected elastic contact arms. In other words, existing technology cannot accommodate manufacturing deviations of the conductive substrate, and this integrated metal terminal also requires plastic spacers between the terminals, resulting in a limited number of contact points within a confined space, which is detrimental to the transmission of high currents. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a connector for connecting substrates. This connector can absorb manufacturing deviations of the conductive substrate and enable the conductive substrate to establish a smooth electrical connection with the PCB board.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a connector for connecting a substrate, comprising a first terminal made of conductive material, a second terminal made of conductive material, a terminal cover made of conductive material, and an insulating body made of insulating material. The insulating body has an insertion channel with openings at the top and bottom. The first terminal includes a holding portion and elastic contact arms for clamping the conductive substrate for conduction. Two cantilevered elastic contact arms are spaced apart at the upper end of the holding portion. The second terminal includes a terminal body, a first latch, and pins. The pins are integrally formed at the lower end of the terminal body. The first latch is located on either side or both sides of the terminal body. The terminal cover includes a cover body and pins. The pins are integrally formed on the lower end of the side cover body. A number of second terminals are arranged in parallel intervals along the front-back direction to form a second terminal group. The terminal side cover is located on the side of the second terminal group where the first buckle is provided. The integral structure formed by the terminal side cover and the second terminal group is fixedly inserted into the insertion channel of the insulating body. The pins at the lower ends of the terminal side cover and the second terminal stop on the outer side of the lower end of the insulating body. The holding parts of a number of first terminals are tightly inserted into the gap between two adjacent second terminals or between the second terminal and the terminal side cover. A second buckle is formed on the side wall of the holding part of the first terminal. The second buckle is engaged with the first buckle to achieve elastic centering and positioning of the first terminal in the vertical and horizontal directions.

[0006] As a further improvement of this utility model, the first buckle is a protrusion protruding from at least one surface of the front and rear sides of the terminal body of the second terminal. The holding part of the first terminal forms a collar that can be elastically deformed. Contact protrusions are formed on the inner sidewalls of the collar in the vertical and horizontal directions respectively. The collar is sleeved on the outer side of the upper protrusion of the terminal body of the second terminal. There is a set gap between the inner sidewall of the collar and the outer sidewall of the protrusion, and each protrusion of the collar abuts against the upper and lower and left and right sidewalls of the protrusion respectively.

[0007] As a further improvement of this utility model, the collar is a symmetrical "3" shaped structure.

[0008] As a further improvement of this utility model, the first buckle is provided on the front side wall of the terminal body of the second terminal, the terminal side cover is provided on the front side of the second terminal group, the front and rear side walls of the terminal body of the second terminal are respectively provided with a third buckle and a fourth buckle, the rear side wall of the terminal side cover is provided with a fourth buckle, and two adjacent third buckles and fourth buckles can be fastened together to realize the relative stop positioning of the second terminal and the terminal side cover in the vertical direction. The rear side wall of the terminal body of the second terminal and the front side wall of the terminal side cover are provided with a fifth buckle, and the front and rear side walls of the insertion channel of the insulating body are respectively provided with a sixth buckle, and the fifth buckle can be fastened together with the sixth buckle for fixation.

[0009] As a further improvement of this utility model, the fifth buckle is an outward protruding buckle 24), and the sixth buckle is an inner groove. When the second terminal and the terminal side cover are inserted into the insertion channel of the insulating body from bottom to top, the outward protruding buckle enters the inner groove and stops on the lower side of the inner groove.

[0010] As a further improvement of this utility model, the fourth buckle is a notch structure on the left and right sides of the terminal body with the second terminal and the side cover body of the terminal cover, and the third buckle is a bent edge at the root of the notch structure of the terminal body of the second terminal, and the bent edge on the second terminal can be inserted into the notch structure of the previous second terminal or the terminal cover.

[0011] As a further improvement of this utility model, the two elastic contact arms of the first terminal have opposite protruding contact points formed on their respective sidewalls, and the two first terminals form a flared structure above the protruding contact points.

[0012] As a further improvement of this utility model, the first terminal, the second terminal, and the terminal cover are all integrally stamped structures made of metal sheets.

[0013] As a further improvement of this utility model, the front and rear sides of the insulating body are respectively provided with first terminal guards, and the first terminal guards are provided with a slot for inserting a conductive substrate in the middle.

[0014] As a further improvement of this utility model, the pins extend horizontally symmetrically from the second terminal and the lower end of the terminal cover toward the left and right sides, respectively.

[0015] The beneficial technical effects of this utility model are as follows: By designing the terminal as a split structure assembled from a first terminal, a second terminal, and a terminal cover, the first terminal can be elastically adjusted in the left-right and up-down position within the gap between the adjacent second terminal or between the second terminal and the terminal cover, thereby realizing the absorption of the torsional deviation of the conductive substrate in the longitudinal, transverse, and horizontal directions by the connector. When the conductive substrate is inserted at an angle, the terminal assembly can automatically twist to the position of the conductive plate and achieve a reliable connection. Attached Figure Description

[0016] Figure 1 Main view of a connector from the prior art;

[0017] Figure 2 This is a schematic diagram of a connector structure in the prior art;

[0018] Figure 3 This is a perspective view of the present utility model;

[0019] Figure 4 This is a three-dimensional schematic diagram of the present invention;

[0020] Figure 5 A theoretical position diagram for inserting the conductive substrate into this utility model;

[0021] Figure 6 Schematic diagram of the automatic correction principle for the terminal position after the circuit board is inserted into this utility model;

[0022] Figure 7 This is a perspective view of the insulating body of this utility model;

[0023] Figure 8 This is a front view of the insulating body of this utility model;

[0024] Figure 9 This is a right view of the insulating body of this utility model;

[0025] Figure 10 This is a top view of the insulating body of this utility model;

[0026] Figure 11 This is a perspective view of the first terminal of this utility model;

[0027] Figure 12 This is a front view of the first terminal of this utility model;

[0028] Figure 13 This is a perspective view of the second terminal of this utility model;

[0029] Figure 14 This is a front view of the second terminal of this utility model;

[0030] Figure 15 This is a right view of the second terminal of this utility model;

[0031] Figure 16 This is a top view of the second terminal of this utility model;

[0032] Figure 17 This is a perspective view of the terminal cover of this utility model;

[0033] Figure 18 This is a front view of the terminal side cover of this utility model;

[0034] Figure 19 This is a perspective view of the terminal assembly structure of this utility model;

[0035] Figure 20 This is a front view of the terminal assembly structure of this utility model;

[0036] Figure 21 This is a right view of the terminal assembly structure of this utility model;

[0037] Figure 22 This is a top view of the terminal assembly structure of this utility model. Detailed Implementation

[0038] Example: A connector for connecting a substrate includes a first terminal 1 made of conductive material, a second terminal 2 made of conductive material, a terminal cover 3 made of conductive material, and an insulating body 4 made of insulating material. The insulating body 4 has an insertion channel 41 with openings at the top and bottom. The first terminal 1 includes a holding portion and elastic contact arms 12 for clamping the conductive substrate 5 for conduction. Two cantilevered elastic contact arms 12 are spaced apart at the upper end of the holding portion. The second terminal 2 includes a terminal body 21, a first latch, and pins 23. The pins 23 are integrally formed at the lower end of the terminal body 21. The first latch is located on either side or both sides of the terminal body 21. The terminal cover 3 includes a cover body 31 and pins 23. The body is formed at the lower end of the side cover body 31. A number of second terminals 2 are arranged in parallel and spaced along the front and back direction to form a second terminal 2 group. The terminal side cover 3 is located on the side of the second terminal 2 group where the first buckle is provided. The overall structure formed by the terminal side cover 3 and the second terminal 2 group is fixedly inserted into the insertion channel 41 of the insulating body 4. The pins 23 at the lower end of the terminal side cover 3 and the second terminal 2 stop on the outer side of the lower end of the insulating body 4. The holding parts of a number of first terminals 1 are tightly inserted into the gap between two adjacent second terminals 2 or between the second terminal 2 and the terminal side cover 3. A second buckle is formed on the side wall of the holding part of the first terminal 1. The second buckle is engaged with the first buckle to achieve elastic centering and positioning of the first terminal 1 in the up and down direction and the left and right direction.

[0039] The connector terminals are designed as a split structure. The retaining part of the first terminal 1 is sandwiched between two adjacent second terminals 2 or between the second terminal 2 and the terminal side cover 3. The first fixed terminal can perform elastic movement in the up and down and left and right directions within a certain range, thereby changing the position of the elastic contact arm 12 on the first terminal 1, thereby adapting to the manufacturing deviation of the conductive substrate 5, realizing the smooth insertion of the conductive substrate 5, and ensuring that the conductive substrate 5 and the PCB board establish a stable electrical connection.

[0040] The first buckle is a protrusion 22 protruding from at least one surface of the front and rear sides of the terminal body 21 of the second terminal 2. The holding part of the first terminal 1 forms a collar 11 that can be elastically deformed. Contact protrusions 111 are formed on the inner sidewalls of the collar 11 in the vertical and horizontal directions. The collar 11 is sleeved on the outer side of the upper protrusion 22 of the terminal body 21 of the second terminal 2. There is a set gap between the inner sidewall of the collar 11 and the outer sidewall of the protrusion 22, and each protrusion of the collar 11 is tightly pressed against the upper, lower and left and right sidewalls of the protrusion 22. When the conductive substrate 5 is inserted at an angle into the upper end of the elastic contact arm 12 of the first terminal 1, due to the manufacturing deviation of the conductive substrate 5, the collar 11 of each first terminal 1 automatically follows the insertion of the conductive substrate and undergoes elastic deformation, so that the position of the elastic contact arm 12 at its upper end automatically follows the conductive substrate 5 to adjust to the manufacturing deviation of the conductive substrate 5. During the deformation of the collar 11, the contact protrusion 111 on its inner sidewall always keeps in close contact with the surface of the protrusion 22 on the sidewall of the second terminal 2. When the conductive substrate 5 is pulled out, as the collar 11 automatically returns to its original state, the position of the elastic contact arm 12 of the first terminal 1 also automatically returns to its initial state. In addition to using this structure of elastic collar 11 to achieve elastic adjustment of the position of the elastic contact arm 12 of the first terminal 1, elastic members extending in the vertical and horizontal directions can also be installed on the sidewall of the second terminal 2, so that the retaining part of the first terminal 1 is given elastic force in the vertical and horizontal directions through each elastic member.

[0041] The collar 11 has a symmetrical "3" shaped structure.

[0042] The first buckle is located on the front side wall of the terminal body 21 of the second terminal 2. The terminal cover 3 is located on the front side of the second terminal 2 group. The front and rear side walls of the terminal body 21 of the second terminal 2 are respectively provided with a third buckle and a fourth buckle. The rear side wall of the terminal cover 3 is provided with a fourth buckle. The two adjacent third buckles and fourth buckles can be engaged to achieve relative stop positioning of the second terminal 2 and the terminal cover 3 in the vertical direction. The rear side wall of the terminal body 21 of the second terminal 2 and the front side wall of the terminal cover 3 are provided with a fifth buckle. The front and rear side walls of the insertion channel 41 of the insulating body 4 are respectively provided with a sixth buckle. The fifth buckle can be engaged and fixed with the sixth buckle.

[0043] By engaging the third and fourth latches, all the second terminals 2 and terminal covers 3 are connected into a single structure that provides vertical positioning. After this structure is installed into the insertion channel 41 of the insulating shell, all the second terminals 2 and terminal covers 3 are positioned by being pressed against the inner wall of the insertion channel 41 in the left-right direction. At the same time, the fifth latch located in the front-back direction of this structure engages with the sixth latch on the inner wall of the insertion channel 41 of the insulating shell, thereby fixing the entire structure within the insertion channel 41 of the insulating shell. This structure does not require each second terminal 2 to be fixedly connected to the side wall of the insertion channel 41 of the insulating shell, saving space. More terminals can be installed without changing the size of the plastic shell, increasing the number of contact points between the connector and the conductive substrate 5, which is beneficial for improving contact stability and achieving high current transmission.

[0044] The fifth latch is an outwardly protruding buckle 24, and the sixth latch is an inner groove 42. The outwardly protruding buckle 24 enters the inner groove 42 when the second terminal 2 and the terminal cover 3 are inserted into the insertion channel 41 of the insulating body 4 from bottom to top, and the outwardly protruding buckle 24 stops on the lower side of the inner groove 42. The fifth latch can be multiple outwardly protruding buckles 24 provided on the second terminal 2 and the terminal cover 3, and the sixth latch corresponds to multiple inner grooves 42. Multiple locking points can enhance the connection strength between the terminal and the insulating shell and prevent the terminal from being dislodged from the insulating shell by a large insertion and extraction force. The fifth latch can also be an outwardly protruding barb, which is fixed and positioned by embedding into the front and rear side walls of the insertion channel 41 of the insulating body 4. This is an equivalent replacement structure that can be easily conceived by those skilled in the art based on this patent and is within the protection scope of this patent.

[0045] The fourth latch is a notch structure 25 on the left and right sides of the terminal body 21 with the second terminal 2 and the side cover body 31 of the terminal side cover 3. The third latch is a bent edge 26 at the root of the notch structure 25 of the terminal body 21 of the second terminal 2. The bent edge 26 on the subsequent second terminal 2 can be inserted into the notch structure 25 on the previous second terminal 2 or the terminal side cover 3. This structure is simple and easy to manufacture. The bent edge 26 is perfectly matched with the size of the notch structure 25. Alternatively, a convex bump can be made on the body of the second terminal 2, with the protruding side of the bump fitting into the recessed side of the convex bump of the adjacent terminal. It can also be a pin and pin hole connection, etc. These are equivalent replacement structures that can be easily conceived by those skilled in the art based on this patent and are within the protection scope of this patent.

[0046] On the opposite sidewalls of the free ends of the two elastic contact arms 12 of the first terminal 1, there are respectively facing raised contact points 121, and the two first terminals 1 form a flared structure above the raised contact points 121. The above structure can achieve a conductive, basically inclined insertion between the two elastic contact arms 12, and finally be tightly contacted by the raised contact points 121.

[0047] The first terminal 1, the second terminal 2, and the terminal cover 3 are all integrally stamped structures made of metal sheet.

[0048] The insulating body 4 has first terminal guard plates 43 extending upwards on both its front and rear sides, and the first terminal guard plates 43 have a slot 44 for inserting the conductive substrate 5 in the middle. The first terminal guard plates 43 on both the front and rear sides of the insulating body 4 can protect the elastic contact arm 12 of the first terminal 1 that extends outward from the second terminal 2.

[0049] The pin 23 extends horizontally symmetrically from the lower end of the second terminal 2 and the terminal cover 3 toward the left and right sides, respectively.

Claims

1. A connector for connecting substrates, characterized by: The device includes a first terminal (1) made of conductive material, a second terminal (2) made of conductive material, a terminal cover (3) made of conductive material, and an insulating body (4) made of insulating material. The insulating body has an insertion channel (41) with openings at the top and bottom. The first terminal includes a holding portion and an elastic contact arm (12) for clamping a conductive substrate (5) for conduction. Two cantilevered elastic contact arms are spaced apart at the upper end of the holding portion. The second terminal includes a terminal body (21), a first latch, and a pin (23). The pin is integrally formed at the lower end of the terminal body. The first latch is located on either side or both sides of the terminal body. The terminal cover includes a cover body (31) and a pin. The pins are integrally formed on the lower end of the side cover body. A number of second terminals are arranged in parallel intervals along the front-back direction to form a second terminal group. The terminal side cover is located on the side of the second terminal group where the first buckle is provided. The integral structure formed by the terminal side cover and the second terminal group is fixedly inserted into the insertion channel of the insulating body. The pins at the lower ends of the terminal side cover and the second terminal stop on the outer side of the lower end of the insulating body. The holding parts of a number of first terminals are tightly inserted into the gap between two adjacent second terminals or between the second terminal and the terminal side cover. A second buckle is formed on the side wall of the holding part of the first terminal. The second buckle is engaged with the first buckle to achieve elastic centering and positioning of the first terminal in the vertical and horizontal directions.

2. The connector for connecting substrates according to claim 1, characterized by: The first buckle is a protrusion (22) protruding from at least one side surface of the front and rear sides of the terminal body of the second terminal. The holding part of the first terminal forms a collar (11) that can be elastically deformed. Contact protrusions (111) are formed on the inner sidewalls of the collar in the up-down direction and the left-right direction, respectively. The collar is sleeved on the outer side of the upper protrusion of the terminal body of the second terminal. There is a set gap between the inner sidewall of the collar and the outer sidewall of the protrusion, and each protrusion of the collar is tightly pressed against the upper and lower and left and right sidewalls of the protrusion.

3. The connector for connecting substrates according to claim 2, characterized by: The collar is a symmetrical "3" shaped structure.

4. The connector for connecting substrates according to claim 1 or 2, characterized by: The first buckle is located on the front side wall of the terminal body of the second terminal, and the terminal cover is located on the front side of the second terminal group. The front and rear side walls of the terminal body of the second terminal are respectively provided with a third buckle and a fourth buckle. The rear side wall of the terminal cover is provided with a fourth buckle. Two adjacent third buckles and fourth buckles can be engaged to achieve relative stop positioning of the second terminal and the terminal cover in the vertical direction. The rear side wall of the terminal body of the second terminal and the front side wall of the terminal cover are provided with a fifth buckle. The front and rear side walls of the insertion channel of the insulating body are respectively provided with a sixth buckle. The fifth buckle can be engaged and fixed with the sixth buckle.

5. The connector for connecting substrates according to claim 4, characterized by: The fifth buckle is an outward protruding buckle (24), and the sixth buckle is an inner groove (42). When the second terminal and the terminal side cover are inserted into the insertion channel of the insulating body from bottom to top, the outward protruding buckle enters the inner groove and stops on the lower side of the inner groove.

6. The connector for connecting substrates according to claim 4, characterized by: The fourth buckle is a notch structure (25) on the left and right sides of the terminal body with the second terminal and the side cover of the terminal cover. The third buckle is a bent edge (26) at the root of the notch structure of the terminal body of the second terminal. The bent edge on the second terminal can be inserted into the notch structure of the previous second terminal or the terminal cover.

7. The connector for connecting substrates according to claim 1, characterized by: The two elastic contact arms of the first terminal have opposite protruding contact points (121) formed on their respective sidewalls, and the two first terminals form a flared structure above the protruding contact points.

8. The connector for connecting substrates according to claim 1, characterized by: The first terminal, the second terminal, and the terminal cover are all integrally stamped structures made of metal sheet.

9. The connector for connecting substrates of claim 2, characterized by: The insulating body has a first terminal guard plate (43) extending upward on both the front and rear sides, and a slot (44) for inserting a conductive substrate is formed in the middle of the first terminal guard plate.

10. The connector for connecting substrates according to claim 1, characterized by: The pins extend horizontally symmetrically from the second terminal and the lower end of the terminal cover toward the left and right sides, respectively.

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