Small-size large-current golden finger connector

Abstract

The utility model discloses a small-size heavy-current golden finger connector, which comprises an insulating main body and a plurality of terminal sheets, the insulating main body is provided with a plurality of terminal mounting holes at intervals, the plurality of terminal sheets are respectively inserted into the terminal mounting holes to be fixed, and one end of each terminal sheet is provided with a plurality of contact pins at intervals. One end of each contact pin is bent towards one side surface of the terminal sheet to form an elastic contact arm, an included angle is formed between the elastic contact arm and the contact pin, and the end part of the elastic contact arm is bent to form an arc-shaped contact bulge. According to the double-row multi-contact design, the number of a single PIN is increased to eight, so that the circulating current is more than two times that of an original terminal, the current-carrying and voltage-resistant performance of the terminal is greatly improved, the terminal can be widely applied to a large-current connector, the current-carrying capability and vibration resistance of the large-current connector are improved, and accessories of all parts are simple in structure and low in cost. And large-scale production and assembly are facilitated.

Description

Technical Field

[0001] The utility model relates to a power connector, in particular to a small-size and high-current gold finger connector. Background Art

[0002] As electronic technology develops, electronic devices have an increasing demand for current, so power connectors require stronger power terminals to withstand greater currents.

[0003] Existing plug-in terminal products have fewer contact points and allow a small current to pass through, which cannot meet high-current design requirements. At the same time, because there are fewer contact points between the terminal and the PIN needle, the stability and reliability of the connection are significantly reduced. Summary of the invention

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the utility model aims to provide a small-size, high-current gold finger connector.

[0005] The purpose of the utility model is achieved through the following technical solutions: a small-size, high-current gold finger connector, comprising an insulating body and a plurality of terminal pieces, the insulating body being provided with a plurality of terminal mounting holes at intervals, the plurality of terminal pieces being respectively inserted into the terminal mounting holes for fixing, a plurality of contact pins being provided at intervals at one end of the terminal piece, one end of each of the contact pins being bent toward a side of the terminal piece to form an elastic contact arm, an angle being formed between the elastic contact arm and the contact pin, and an arc-shaped contact protrusion being bent at the end of the elastic contact arm. The utility model adopts upper and lower double-row terminal pieces, and the design of each terminal piece having multiple contacts can improve the current carrying capacity, and utilizes the elastic structure of the elastic contact arm to stably contact with the male connector.

[0006] As an improvement of the small-size, high-current gold finger connector of the utility model, curved limit baffles are respectively provided on both sides of the terminal piece, and limit grooves are respectively provided on both side walls of the entrance end of the terminal mounting hole, and steps are provided in the limit grooves. The limit baffles can be embedded in the limit grooves to limit the movement of the terminal piece.

[0007] As an improvement of the small-size high-current gold finger connector of the utility model, a stop spring is provided in the middle of the terminal piece. The stop spring is elastic and can limit the movement of the terminal piece after the terminal piece is inserted, and facilitates the installation of the terminal piece.

[0008] As an improvement of the small-size, high-current gold finger connector of the utility model, the insulating body is provided with a limiting hole at a position corresponding to the retaining spring sheet, the terminal sheet is inserted from one end of the terminal mounting hole, and the retaining spring sheet is snapped into the limiting hole.

[0009] As an improvement of the small-size, high-current gold finger connector of the utility model, a plurality of solder pins are arranged at intervals on the other end of the terminal piece, and the solder pins are fixed on the circuit board by reflow soldering or plug-in.

[0010] As an improvement of the small-size, high-current gold finger connector of the utility model, a clearance groove is provided at the other end of the terminal mounting hole, the contact pin is accommodated in the clearance groove, and the arc-shaped contact protrusion protrudes out of the clearance groove.

[0011] As an improvement of the small-size and high-current gold finger connector of the utility model, the terminal pieces have four pieces, and every two pieces of the terminal pieces are arranged correspondingly up and down. The upper and lower two pieces of terminal pieces contact a male connector together.

[0012] As an improvement of the small-size, high-current gold finger connector of the utility model, there are four terminal mounting holes, the front ends of the upper and lower terminal mounting holes on the same side are connected, and the rear ends of the upper and lower terminal mounting holes on the same side are separated by a partition.

[0013] As an improvement of the small-size high-current gold finger connector of the utility model, positioning columns are respectively provided on both sides of the rear end of the insulating body, and the positioning columns can be connected to the positioning holes on the circuit board. The positioning columns can be used for the initial positioning of the connector welding, and the connector can be vertically plugged into the circuit board.

[0014] As an improvement of the small-size, high-current gold finger connector of the utility model, a plurality of heat dissipation holes are arranged at intervals on the upper surface and the lower surface of the insulating body, and the number of the heat dissipation holes is the same as the number of the contact pins. The heat dissipation holes can enhance the air circulation inside the connector, thereby enhancing the heat dissipation function of the power terminal.

[0015] The beneficial effects of the utility model are as follows: the utility model has a double-row multi-contact design, and a single PIN is increased to 8 contacts, so that the circulating current is more than twice that of the original terminal, which greatly improves the terminal current-carrying and voltage-resistant performance, and can be widely used in high-current connectors. At the same time, the current-carrying capacity and vibration resistance of the high-current connector are improved, and the structure of each part is simple, which is conducive to large-scale production and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front perspective view of the utility model;

[0017] Figure 2 It is a reverse stereogram of the utility model;

[0018] Figure 3 It is an exploded schematic diagram of the utility model;

[0019] Figure 4It is a three-dimensional diagram of the terminal piece of the utility model;

[0020] Figure 5 It is a front perspective view of the insulating main body of the utility model;

[0021] Figure 6 It is a rear view of the insulating body of the utility model;

[0022] The accompanying drawings are marked as follows:

[0023] 1. Insulation body; 11. Limiting hole; 12. Heat dissipation hole;

[0024] 2. Terminal piece; 21. Contact pin; 22. Elastic contact arm; 23. Arc-shaped contact protrusion; 24. Limit stopper; 25. Stop spring; 26. Welding pin;

[0025] 3. Terminal mounting hole; 31. Limiting groove; 32. Step; 33. Make way groove; 34. Partition plate;

[0026] 4. Positioning column; DETAILED DESCRIPTION

[0027] 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 of 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.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0030] like Figure 1-Figure 6As shown, a small-size, high-current gold finger connector comprises an insulating body 1 and a plurality of terminal pieces 2. The insulating body 1 is provided with a plurality of terminal mounting holes 3 at intervals. The plurality of terminal pieces 2 are respectively inserted into the terminal mounting holes 3 for fixing. A plurality of contact pins 21 are provided at intervals at one end of the terminal piece 2. One end of each contact pin 21 is bent toward a side of the terminal piece 2 to form an elastic contact arm 22. An angle is formed between the elastic contact arm 22 and the contact pin 21, and the angle is V-shaped. The end of the elastic contact arm 22 is bent to form an arc-shaped contact protrusion 23. The utility model adopts a design of upper and lower double-row terminal pieces 2 and multiple contacts for each terminal piece 2, which can improve the current carrying capacity, and utilizes the elastic structure of the elastic contact arm to stably contact with the male connector.

[0031] Preferably, curved limit baffles 24 are respectively provided on both sides of the terminal piece 2, and limit grooves 31 are respectively provided on both side walls of the entrance end of the terminal mounting hole 3, and steps 32 are provided in the limit grooves 31, and the limit baffles 24 can be embedded in the limit grooves 31 to limit the movement of the terminal piece 2.

[0032] Preferably, a stop spring 25 is provided in the middle of the terminal piece 2. The stop spring 25 is elastic and can limit the movement of the terminal piece 2 after the terminal piece is inserted and facilitate the installation of the terminal piece 2.

[0033] Preferably, the insulating body 1 is provided with a limiting hole 11 at a position corresponding to the retaining spring piece 25 , the terminal piece 2 is inserted from one end of the terminal mounting hole 3 , and the retaining spring piece 25 is snapped into the limiting hole 11 .

[0034] Preferably, a plurality of solder pins 26 are provided at intervals at the other end of the terminal piece 2, and the solder pins 26 are fixed on the circuit board by reflow soldering or plug-in connection.

[0035] Preferably, a clearance groove 33 is provided at the other end of the terminal mounting hole 3 , the contact pin 21 is accommodated in the clearance groove 33 , and the arc-shaped contact protrusion 23 protrudes out of the clearance groove 33 .

[0036] Preferably, the terminal pieces 2 have four pieces, and every two terminal pieces 2 are arranged correspondingly in the upper and lower parts. The upper and lower terminal pieces 2 are in contact with a male connector together.

[0037] Preferably, there are four terminal mounting holes 3 , the front ends of the upper and lower terminal mounting holes 3 located on the same side are connected, and the rear ends of the upper and lower terminal mounting holes 3 located on the same side are separated by a partition 34 .

[0038] Preferably, positioning posts 4 are respectively provided on both sides of the rear end of the insulating body 1, and the positioning posts 4 can be connected to the positioning holes on the circuit board. The positioning posts 4 can be used for the initial positioning of the connector welding, and the connector can be vertically plugged into the circuit board.

[0039] Preferably, multiple heat dissipation holes 12 are arranged at intervals on the upper and lower surfaces of the insulating body 1, and the number of heat dissipation holes 12 is the same as the number of contact pins 21. The heat dissipation holes 12 can enhance the air circulation inside the connector, thereby enhancing the heat dissipation function of the power terminal.

[0040] The utility model has a double-row multi-contact design and increases the number of contacts of a single PIN to 8, so that the circulating current is more than twice that of the original terminal, which greatly improves the current-carrying and voltage-resistant performance of the terminal. It can be widely used in high-current connectors, and at the same time improves the current-carrying capacity and vibration resistance of high-current connectors. The structure of each part is simple, which is conducive to large-scale production and assembly.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and structures of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small-size, high-current gold finger connector, comprising an insulating body and a plurality of terminal pieces, characterized in that: A plurality of terminal mounting holes are arranged at intervals on the insulating body, and a plurality of terminal pieces are respectively inserted into the terminal mounting holes for fixing. A plurality of contact pins are arranged at intervals at one end of the terminal piece, and one end of each of the contact pins is bent toward a side of the terminal piece to form an elastic contact arm, and an angle is formed between the elastic contact arm and the contact pin, and an arc-shaped contact protrusion is bent at the end of the elastic contact arm.

2. The small-size, high-current gold finger connector according to claim 1, characterized in that: The two sides of the terminal piece are respectively provided with curved limit baffles, and the two side walls of the entrance end of the terminal mounting hole are respectively provided with limit grooves, and the limit grooves are provided with steps. The limit baffles can be embedded in the limit grooves to limit the movement of the terminal piece.

3. The small-size, high-current gold finger connector according to claim 2, characterized in that: A retaining spring is provided in the middle of the terminal piece.

4. The small-size, high-current gold finger connector according to claim 3, characterized in that: The insulating body is provided with a limiting hole at a position corresponding to the stop spring piece, the terminal piece is inserted from one end of the terminal installation hole, and the stop spring piece is stuck in the limiting hole.

5. The small-size, high-current gold finger connector according to claim 1, characterized in that: A plurality of solder pins are arranged at intervals at the other end of the terminal piece, and the solder pins are fixed on the circuit board by reflow soldering or plug-in connection.

6. The small-size, high-current gold finger connector according to claim 1, characterized in that: A clearance groove is arranged at the other end of the terminal installation hole, the contact pin is accommodated in the clearance groove, and the arc-shaped contact protrusion protrudes out of the clearance groove.

7. The small-size, high-current gold finger connector according to claim 1, characterized in that: The terminal pieces include four pieces, and every two of the terminal pieces are correspondingly arranged one above the other.

8. The small-size, high-current gold finger connector according to claim 1, characterized in that: There are four terminal mounting holes, the front ends of the upper and lower terminal mounting holes located on the same side are connected, and the rear ends of the upper and lower terminal mounting holes located on the same side are separated by a partition.

9. The small-size, high-current gold finger connector according to claim 1, characterized in that: Positioning posts are respectively arranged on both sides of the rear end of the insulating body, and the positioning posts can be connected to the positioning holes on the circuit board.

10. The small-size, high-current gold finger connector according to claim 1, characterized in that: A plurality of heat dissipation holes are arranged at intervals on the upper surface and the lower surface of the insulating body, and the number of the heat dissipation holes is the same as the number of the contact pins.

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