CN221862060U - A high current electrical connector - Google Patents

Abstract

The utility model relates to a high-current electric connector. The high-current electric connector of the utility model comprises: the mother seat is used for being connected with a board end circuit; a male terminal for connection with a wire; the male terminal is inserted on the female seat; a fixing assembly including a fixing case; the fixed shell is sleeved outside the female seat, a plurality of fixed plugboards are arranged at the upper end of the fixed shell, and the fixed plugboards are fixedly connected with the male terminals. The high-current electric connector has the advantages of high installation efficiency and less debris and sundries generated during installation.

Description

A high current electrical connector

Technical Field

The utility model relates to the field of electric connectors, in particular to a high-current electric connector.

Background Art

In the prior art, electrical connectors that connect circuits with large currents usually use screws to lock OT terminals (or U-shaped terminals) at the board ends to achieve current transmission. The inventors have studied the above types of electrical connectors and found that when using screws to lock, since the screws will cause a large pressure force inside the terminal screw holes and the board end screw holes, the locking process will cause debris to fall, causing interference with the operation of precision components. In addition, the existing electrical connectors need to tighten the screws when connecting, which is cumbersome and difficult to operate, and the installation efficiency is low.

Utility Model Content

Based on this, the purpose of the utility model is to provide a high-current electrical connector, which has the advantages of high installation efficiency and less debris generated during installation.

A high current electrical connector, comprising:

Female socket, used to connect with the board end circuit;

A male terminal, used for connecting to a wire; the male terminal is inserted into the female seat;

The fixing assembly comprises a fixing shell; the fixing shell is sleeved outside the female seat, and a plurality of fixing plug plates are arranged on the upper end of the fixing shell, and the fixing plug plates are fixedly connected to the male terminal.

The high-current electrical connector of the utility model fixes the female base and the male terminal by means of a fixing assembly, thus avoiding the use of screws for installation, improving the installation efficiency, and reducing the debris generated by screw locking during the installation process.

Furthermore, the female socket includes a base, a plurality of female terminal contact pieces and a plurality of welding feet; the welding feet are arranged at the lower end of the base for electrically connecting with the board end circuit; the female terminal contact piece is arranged around the upper end of the base, and the end of the female terminal contact piece away from the base is surrounded to form a female terminal contact port; the male terminal is inserted into the female terminal contact port.

Furthermore, the male terminal includes an O-shaped head and a wiring terminal; the O-shaped head is arranged at one end of the wiring terminal, and the wiring terminal is used to connect with the wire; an O-shaped hole is provided on the O-shaped head; a contact ring protruding downward is provided around the O-shaped hole below the O-shaped head; the contact ring is inserted into the contact port of the female terminal.

Furthermore, the O-shaped head is provided with a plurality of first fixing holes, which are arranged at intervals around the O-shaped hole; and the fixing plug plate passes through the first fixing holes and is fixedly connected to the male terminal.

Furthermore, a buckle block is provided on one side of the fixed plug plate toward the central axis of the base, the upper surface of the buckle block is a slope, and the lower surface is perpendicular to the fixed plug plate; in the assembled state, the lower surface of the buckle block abuts against the upper surface of the O-shaped head.

Furthermore, the top end of the fixed plug plate is tilted in a direction away from the central axis of the base, so that the fixed plug plate forms an arc surface inclined in a direction away from the central axis of the base.

Furthermore, the free end of the female terminal contact piece is provided with an inwardly convex clamping section protruding inwardly toward the central axis of the base, and the inwardly convex clamping sections of several female terminal contact pieces surround to form the female terminal contact port, and the outer surface of the contact ring is provided with a concave-convex shaped surface matching the inwardly convex clamping section.

Furthermore, the fixing assembly also includes a fixing cover, which is arranged on the upper end of the male terminal; the fixing cover is provided with a second fixing hole, which is arranged one-to-one with the first fixing hole, and the fixing plug plate passes through the first fixing hole and the second fixing hole in sequence.

Furthermore, the inner side and the outer side of the second fixing hole are provided with convex grooves for accommodating the buckle block and the fixing plug plate.

Furthermore, a plurality of fixing buckles for buckling the contact ring are provided at the lower end of the fixing cover, and the fixing buckles are arranged around the central axis of the fixing cover.

Furthermore, a plurality of spring clip grooves are provided on the side wall of the fixed shell; the spring clip grooves are respectively opposite to the female terminal contact pieces; an auxiliary spring clip is provided in the spring clip groove, one end of the auxiliary spring clip is connected to the spring clip groove, and the other end is a free end; the free end abuts against the female terminal contact piece.

Furthermore, a plurality of auxiliary tongues are provided on the side wall of the fixed shell, and the auxiliary tongues are provided at the upper end of the elastic sheet groove and at a side away from the central axis of the base.

Furthermore, at least one first riveting hole is provided on the base of the female seat, and a second riveting hole corresponding to the first riveting hole is provided on the side wall of the fixed shell; the female seat and the fixed shell are riveted through the first riveting hole and the second riveting hole.

Furthermore, the fixed shell is a stainless steel shell.

In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a perspective schematic diagram of a high current electrical connector of the present application;

FIG2 is a three-dimensional assembly diagram of the high-current electrical connector of the present application;

FIG3 is a three-dimensional schematic diagram of a female socket of a high-current electrical connector of the present application;

FIG4 is a three-dimensional schematic diagram of a male terminal of a high-current electrical connector of the present application;

FIG5 is a schematic diagram of the connection between the female socket and the male terminal of the present application;

FIG6 is a schematic diagram of a male terminal in which an O-shaped head is perpendicular to the wiring terminal of the present application;

FIG7 is a schematic diagram of a male terminal for welding a wiring terminal and a wire of the present application;

FIG8 is a perspective schematic diagram of a fixed housing of a high current electrical connector of the present application;

FIG9 is a perspective schematic diagram of a fixing cover of a high current electrical connector of the present application;

FIG. 10 is a three-dimensional schematic diagram of a high-current electrical connector with an auxiliary tongue and a connecting strip according to the present application.

DETAILED DESCRIPTION

In the prior art, electrical connectors that connect circuits through which large currents flow usually use screws to lock OT terminals (or U-shaped terminals) at the board ends, thereby achieving current transmission. The inventors have studied the above types of electrical connectors and found that when using screws to lock, since the screws will cause a large compressive force on the inside of the terminal screw holes and the inside of the board end screw holes, debris will fall during the locking process, causing interference with the operation of precision components. In addition, existing electrical connectors need to tighten the screws when connected, which is cumbersome and difficult to operate, and has low installation efficiency. To this end, the utility model provides a high-current electrical connector.

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.

In the description of the present invention, it should be noted that the terms "vertical direction", "upper", "lower", "horizontal" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a heat-conducting connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Example 1

Referring to Figures 1 to 10, the present application provides a high-current electrical connector, including a female socket 1, a male terminal 2, and a fixing assembly 3. The female socket 1 is used to connect to the board end circuit, and the male terminal 2 is used to connect to the wire; the male terminal 2 is inserted into the female socket 1, and the fixing assembly 3 is used to fix the female socket 1 and the male terminal 2.

The female socket 1 includes a base 101, a plurality of female terminal contact pieces 102 and a plurality of solder pins 103. The solder pins 103 are arranged at one end of the base 101 for electrical connection with the board end circuit. Furthermore, the plurality of solder pins 103 are arranged at equal intervals around the bottom of the base 101. The plurality of female terminal contact pieces 102 are arranged at equal intervals around the other end of the base 101, and the end of the female terminal contact piece 102 away from the base 101 freely extends around to form a female terminal contact port.

The male terminal 2 includes an O-shaped head 201 and a wiring terminal 202. The O-shaped head 201 is arranged at one end of the wiring terminal 202; the wiring terminal 202 is used to connect with the wire. An O-shaped hole 2011 is arranged on the O-shaped head 201; a contact ring 2012 protruding from the O-shaped head 201 is arranged around the O-shaped hole 2011 on one side of the O-shaped head 201. Furthermore, the outer diameter of the contact ring 2012 is equal to the inner diameter of the female terminal contact port; in the assembled state, the contact ring 2012 is inserted into the female terminal contact port, and the top end of the female terminal contact piece 102 surrounds and clamps the contact ring 2012, and the electrical connection between the board end circuit and the wire is realized through the connection between the contact ring 2012 and the female terminal contact piece 102.

In some embodiments, the female terminal contact piece 102 is an elastic contact piece, and the free end of the female terminal contact piece 102 is provided with an inwardly protruding inner convex clamping section 1021, and the clamping sections of several female terminal contact pieces 102 surround to form the aforementioned female terminal contact port. The outer surface of the contact ring 2012 is provided with a concave-convex shaped surface that matches the inwardly convex clamping section 1021. Through the cooperation of the concave-convex shaped surface and the inwardly convex clamping section 1021, the extraction force is improved, so that the connection between the male terminal 2 and the female seat 1 is more stable. Further, each female terminal contact piece 102 is inclined toward the central axis of the female seat 1, and the inclination angle is less than 10°; the top of the female terminal contact piece 102 is bent outward from the inwardly convex clamping section 1021 to form an inner concave at the inwardly convex clamping section 1021; the free end of the female terminal contact piece 102 is inclined outward, which can facilitate the contact ring 2012 to be inserted into the female terminal contact port more smoothly.

In some embodiments, the terminal block 202 is a strip plate, and the wire is connected to the terminal block 202 by ultrasonic welding, resistance welding, etc. In other embodiments, the terminal block 202 is a wire punching terminal, and the wire is connected to the terminal block 202 by crimping, pressure welding, etc. The angle between the terminal block 202 and the O-shaped head 201 is between positive and negative 90°; the angle between the terminal block 202 and the O-shaped head 201 can be selected according to the requirements of the wire arrangement direction.

The fixing assembly 3 includes a fixing shell 301 and a fixing cover 302. The fixing shell 301 is sleeved with the female seat 1. Further, a plurality of first fixing holes 2013 are provided on the O-shaped head 201, and the first fixing holes 2013 are arranged at intervals around the O-shaped hole 2011; preferably, the first fixing holes 2013 are arranged around the O-shaped hole 2011 at equal intervals. A plurality of fixing plugs 3011 are provided at one end of the fixing shell 301, and the fixing plugs 3011 correspond to the first fixing holes 2013 one by one, and the distance from the side of the fixing plugs 3011 facing the central axis of the O-shaped hole 2011 to the central axis of the O-shaped hole 2011 is equal to the distance from the side of the first fixing hole 2013 close to the central axis of the O-shaped hole 2011 to the central axis of the O-shaped hole 2011. Furthermore, a buckle block 3011a is provided on the inner side of the fixed plug plate 3011, the upper surface of the buckle block 3011a is a slope, and the lower surface is perpendicular to the fixed plug plate 3011; when the contact ring 2012 is inserted into the female terminal contact port, the fixed plug plate 3011 is inserted into the first fixing hole 2013 from below, and the buckle block 3011a squeezes through the first fixing hole 2013 using the slope; after the buckle block 3011a passes through the first fixing hole 2013, the lower surface of the buckle block 3011a is tightly pressed against the upper surface of the O-shaped head 201, preventing the fixed plug plate 3011 from exiting the first fixing hole 2013. In some embodiments, the buckle block 3011a is provided on the fixed plug plate 3011 on one side facing the center of the O-shaped hole 2011. Furthermore, the top end of the fixed plug plate 3011 is tilted toward the direction away from the central axis of the mother seat 1, so that an outwardly inclined arc surface is formed on the inner side of the fixed plug plate 3011; when the fixed plug plate 3011 is inserted into the first fixing hole 2013, the outwardly inclined arc surface at the top end of the fixed plug plate 3011 makes it easier to insert the fixed plug plate 3011 into the first fixing hole 2013.

Furthermore, a plurality of spring clip grooves 3012 are provided on the side wall of the fixed shell 301, and each spring clip groove 3012 is respectively opposite to the female terminal contact piece 102. An auxiliary spring clip 3013 is provided in the spring clip groove 3012, one end of the auxiliary spring clip 3013 is connected to the spring clip groove 3012, and the other end is a free end; the auxiliary spring clip 3013 abuts against the female terminal contact piece 102. The auxiliary spring clip 3013 plays the role of auxiliary support for the female terminal contact piece 102, and can improve the stability of the female terminal contact piece 102 clamping the contact ring 2012.

Furthermore, the fixing shell 301 is made of stainless steel; the stainless steel fixing shell 301 can provide a certain degree of protection for the female socket 1, while being beneficial to the conduction between the female socket 1 and the male terminal 2, and can assist the female socket 1 in heat dissipation.

In some embodiments, at least one first riveting hole 101a is provided on the base 101 of the mother seat 1, and a second riveting hole 3014 corresponding to the first riveting hole 101a is provided on the side wall of the fixed shell 301; when the fixed shell 301 is sleeved on the mother seat 1, the fixed shell 301 and the mother seat 1 are fixed by riveting the first riveting hole 101a and the second riveting hole 3014.

The fixing cover 302 is provided with a plurality of second fixing holes 3021 for inserting the fixing plug plate 3011, and the second fixing holes 3021 correspond to the fixing plug plate 3011 one by one. In some embodiments, the inner and outer sides of the second fixing holes 3021 are provided with convex grooves, and the convex grooves are used to pass or accommodate the buckle block 3011a on the fixing plug plate 3011 and the top of the fixing plug plate 3011 that is tilted outward. A plurality of fixing buckles 3022 are provided below the fixing cover 302, and the fixing buckles 3022 are used to buckle the contact ring 2012; the fixing buckles 3022 are arranged around the center of the fixing cover 302 at equal intervals, and the distance from the fixing buckle 3022 to the center of the fixing cover 302 is equal to the inner diameter of the contact ring 2012. After the male terminal 2 is inserted into the female socket 1 and the fixed shell 301, the fixed cover 302 is pressed down from above the O-shaped head 201 so that the fixed plug plate 3011 is inserted into the second fixed hole 3021 from below; at the same time, the fixed buckle 3022 passes through the O-shaped hole 2011 and the contact ring 2012, and snaps into the contact ring 2012, thereby connecting the fixed cover 302 and the fixed shell 301, thereby firmly connecting the male terminal 2 and the female socket 1.

Furthermore, the material of the fixing cover 302 is insulating material such as plastic.

In some embodiments, a connecting belt 3023 is provided on the fixing cover 302, one end of the connecting belt 3023 is connected to the fixing cover 302, and the other end is connected to the male terminal 2. Further, a connecting hole is provided on the fixing cover 302, one end of the connecting belt 3023 is arranged in the connecting hole, and the other end is sleeved with the male terminal 2. Connecting the fixing cover 302 and the male terminal 2 can prevent the loss of parts during disassembly or installation.

When installing the high-current electrical connector of the embodiment of the present application, first connect the welding foot 103 of the female socket 1 to the board-end circuit; then put the fixed shell 301 on the female socket 1, and fix the fixed shell 301 and the female socket 1 together; then place the male terminal 2 above the female socket 1, press down so that the contact ring 2012 is inserted into the contact port of the female terminal, and at the same time, the fixed plug plate 3011 passes through the first fixing hole 2013; finally, place the fixed cover 302 above the O-shaped head 201 of the male terminal 2, press down so that the fixed plug plate 3011 is inserted into the second fixing hole 3021, and connect the fixed cover 302 and the fixed shell 301.

In some embodiments, since the material of the board end circuit is relatively soft or fragile, the production line automatically installs the high-current electrical connector of the embodiment of the present application, and pressing down the male terminal 2 and the fixed cover 302 may cause damage to the board end. Therefore, a plurality of auxiliary tongues 3015 are provided on the side wall of the fixed shell 301, and the auxiliary tongues 3015 face the outside of the fixed shell 301. Further, the auxiliary tongues 3015 are provided at the upper end of the spring slot 3012. When the production line automatically installs the high-current electrical connector of the embodiment of the present application, the male terminal 2 and the fixed cover 302 are pressed down while the fixed shell 301 is clamped by a clamping tool, and the auxiliary tongues 3015 can assist the clamping tool in clamping, thereby avoiding damage to the board end by the downward pressure.

Compared with the prior art, the high-current electrical connector of the present application is easy and quick to install, and no debris generated by screw locking is generated during installation. The male terminal 2 and the female socket 1 can be firmly locked by the fixing shell 301 and the fixing cover 302 to ensure stable circuit connection. The fixing shell 301 can protect the female socket 1 and can help the female socket 1 to dissipate heat.

The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims (14)

1. A high current electrical connector, comprising:

The mother seat is used for being connected with a board end circuit;

a male terminal for connection with a wire; the male terminal is inserted on the female seat;

a fixing assembly including a fixing case; the fixed shell is sleeved outside the female seat, a plurality of fixed plugboards are arranged at the upper end of the fixed shell, and the fixed plugboards are fixedly connected with the male terminals.

2. The high current electrical connector of claim 1, wherein: the base comprises a base, a plurality of female terminal contact pieces and a plurality of welding pins; the welding leg is arranged at the lower end of the substrate and is used for being electrically connected with the board-end circuit; the female terminal contact piece is arranged at the upper end of the substrate in a surrounding mode, and one end, far away from the substrate, of the female terminal contact piece is arranged at the upper end of the substrate in a surrounding mode to form a female terminal contact opening; the male terminal is inserted into the female terminal contact opening.

3. The high current electrical connector of claim 2, wherein: the male terminal comprises an O-shaped head and a wiring terminal; the O-shaped head is arranged at one end of the wiring terminal, and the wiring terminal is used for being connected with the lead; an O-shaped hole is formed in the O-shaped head; a contact ring protruding downwards is arranged around the O-shaped hole below the O-shaped head; the contact ring is inserted into the female terminal contact opening.

4. The high current electrical connector of claim 3, wherein: the O-shaped head is provided with a plurality of first fixing holes, and the first fixing holes are arranged at intervals around the O-shaped holes; the fixed plugboard passes through the first fixing hole and is fixedly connected with the male terminal.

5. The high current electrical connector of claim 4, wherein: a clamping block is arranged on one side of the fixed plugboard, facing the central axis of the substrate, the upper surface of the clamping block is a slope, and the lower surface of the clamping block is perpendicular to the fixed plugboard; in the assembled state, the lower surface of the clamping block is abutted against the upper surface of the O-shaped head.

6. The high current electrical connector of claim 5, wherein: the top end of the fixed plugboard is tilted towards the direction far away from the central axis of the substrate, so that the fixed plugboard forms an arc surface inclined towards the direction far away from the central axis of the substrate.

7. The high current electrical connector of claim 6, wherein: the free end of the female terminal contact piece is provided with an inward convex clamping section protruding inwards towards the central axis of the substrate, the inward convex clamping sections of the female terminal contact piece encircle to form a female terminal contact port, and the outer surface of the contact ring is provided with a concave-convex special-shaped surface matched with the inward convex clamping section.

8. The high current electrical connector according to any one of claims 5-7, wherein: the fixed assembly further comprises a fixed cover, and the fixed cover is arranged at the upper end of the male terminal; the fixed cover is provided with second fixed holes, the second fixed holes are in one-to-one correspondence with the first fixed holes, and the fixed plugboard sequentially penetrates through the first fixed holes and the second fixed holes.

9. The high current electrical connector of claim 8, wherein: and the inner side and the outer side of the second fixing hole are respectively provided with a convex groove for accommodating the clamping block and the fixing plugboard.

10. The high current electrical connector of claim 9, wherein: the fixed lid lower extreme is equipped with and is used for the lock a plurality of fixed buckles of contact ring, fixed buckle encircles fixed lid central axis sets up.

11. The high current electrical connector according to any one of claims 9-10, wherein: a plurality of spring plate grooves are formed in the side wall of the fixed shell; the elastic sheet grooves are respectively opposite to the female terminal contact pieces; an auxiliary spring piece is arranged in the spring piece groove, one end of the auxiliary spring piece is connected with the spring piece groove, and the other end of the auxiliary spring piece is a free end; the free end abuts the female terminal contact piece.

12. The high current electrical connector of claim 11, wherein: the side wall of the fixed shell is provided with a plurality of auxiliary tongues, and the auxiliary tongues are arranged at the upper end of the elastic sheet groove and at one side far away from the central axis of the substrate.

13. The high current electrical connector of claim 12, wherein: at least one first riveting hole is formed in the base of the female base, and a second riveting hole corresponding to the first riveting hole is formed in the side wall of the fixed shell; the female seat and the fixed shell are riveted Kong Maoge through the first riveting hole and the second riveting hole.

14. The high current electrical connector of claim 13, wherein: the fixed shell is a stainless steel shell.