Large-current busbar cable connecting female joint

Abstract

The utility model discloses a heavy current busbar cable connection female joint, comprising a female joint body and a spring piece, the head end of the female joint body is provided with a male joint insertion groove, the side wall of the male joint insertion groove is provided with a spring piece limiting groove, the spring piece is installed in the spring piece limiting groove, the spring piece comprises a first connection part, a second connection part and a plurality of spring piece parts, all the elastic sheet parts are connected between the first connecting part and the second connecting part, the middle parts of all the elastic sheet parts are provided with plug-in contact convex bodies which obliquely protrude towards the center direction of the female head body, and all the plug-in contact convex bodies are arranged and distributed clockwise or anticlockwise; according to the utility model, the novel spring pieces are adopted, and the spring pieces can improve the current-carrying capacity by increasing the contact area in a limited space, so that the connecting female head can bear large current, and the current-carrying capacity of the connecting female head is improved. The utility model has the advantages of high current-carrying capacity, low resistance, low heating, good contact performance and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of connector, more particularly to a large current busbar cable connection female head. BACKGROUND

[0002] The existing busbar connection / cable connection connector generally comprises a connector body and a conductive element installed in the butt joint groove of the connector body, such as the energy storage connector with straight crown spring with patent authorization announcement number CN 219892462 U, the conductive element of which is a crown spring, and such connector has the following disadvantages:

[0003] 1. It cannot bear large current, and if connected to large current, it cannot work normally due to high heat.

[0004] 2. During use, it is inconvenient to plug and unplug, and the crown spring is easy to fall off, with short service life. UTILITY MODEL CONTENT

[0005] The utility model aims at overcoming the above-mentioned defects in the prior art, and provides a large current busbar cable connection female head with high current carrying capacity, low resistance, low heat generation, good contact performance and other advantages.

[0006] To achieve the above-mentioned purpose, the utility model provides a large current busbar cable connection female head, which comprises a female head body and a C-shaped spring sheet, a male head insertion groove is formed in the middle of the head end of the female head body, one end of the male head insertion groove penetrates the head end face of the female head body, the other end of the male head insertion groove extends in the axial direction of the female head body, the side wall of the male head insertion groove is provided with a ring of spring sheet limiting grooves recessed in the outward direction of the female head body, the head and tail ends of the spring sheet limiting grooves form two limiting steps on the side wall of the male head insertion groove, the spring sheet is installed in the spring sheet limiting groove and in contact with the female head body, the spring sheet comprises a C-shaped first connecting part, a C-shaped second connecting part and a plurality of interval arranged spring sheet parts, all the spring sheet parts are connected between the first connecting part and the second connecting part, the middle part of all the spring sheet parts is provided with a plug-in contact protrusion inclined and protruding in the center direction of the female head body, all the plug-in contact protrusions are arranged and distributed in the clockwise direction or the counterclockwise direction, the outer side edge of the first connecting part and the outer side edge of the second connecting part are respectively provided with a plurality of interval arranged spring sheet clamping claws, the head end of all the spring sheet clamping claws is bent in the outward direction of the female head body and in contact with the side wall of the male head insertion groove of the female head body.

[0007] Preferably, all the spring sheet parts are respectively provided with abutting parts located on both sides of the plug-in contact protrusion, and all the abutting parts are in contact with the side wall of the male head insertion groove of the female head body.

[0008] Preferably, the surface of the spring sheet is electroplated with a nickel layer, and the surface of the nickel layer is electroplated with a silver layer.

[0009] Preferably, the surface of the silver layer is passivated to form a passivated surface through a mercaptan passivation treatment.

[0010] Preferably, the sidewall of the male head insertion groove of the female head body is coated with lubricating grease.

[0011] Preferably, the tail end of the female head body is provided with a limiting convex ring.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The utility model discloses a structure design is reasonable, and the male head insertion groove is provided with novel spring sheet in the female head body, and the spring sheet includes the first connecting part of C type, the second connecting part of C type and a plurality of interval arrangement's spring sheet part, all spring sheet parts are connected between the first connecting part and the second connecting part, and the middle part of all spring sheet parts is provided with the plug-in contact convex body that inclines to the center direction of female head body, and all plug-in contact convex bodies are arranged and distribute to clockwise direction or counterclockwise direction, and the spring sheet can increase the contact area in the limited space to improve the current carrying capacity, so that the connecting female head can bear the large current, and the utility model has the advantages of high current carrying capacity, low resistance, low heat generation, good contact performance and the like.

[0014] 2. The head and tail of the spring sheet limiting groove form two limiting steps on the sidewall of the male head insertion groove, the outer side edge of the first connecting part and the second connecting part of the spring sheet is respectively provided with a plurality of spring sheet clamping claws, and the head end of all spring sheet clamping claws is bent to the outside direction of the female head body, so that the spring sheet can be effectively prevented from falling off, and the service life of the connecting female head is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0016] Figure 1 It is the structure schematic diagram of the large-current busbar cable connecting female head provided by the utility model embodiment;

[0017] Figure 2 It is the sectional view of the large-current busbar cable connecting female head provided by the utility model embodiment;

[0018] Figure 3 It is the structure schematic diagram of the spring sheet provided by the utility model embodimentFigure 1 ;

[0019] Figure 4 is a structure diagram of the spring sheet provided by the embodiment of the present application Figure 2 ;

[0020] Figure 5 is a partial structure enlarged view of the spring sheet provided by the embodiment of the present application. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0022] Please refer to Figure 1 and Figure 2 The embodiment of the present application provides a large-current busbar cable connecting female head, which comprises a female head body 1 and a C-shaped spring sheet 2. The various components of the embodiment will be described in detail below with reference to the drawings.

[0023] As shown in Figure 1 and Figure 2 , the female head body 1 can be made of a metal material. A male head insertion groove 11 for inserting a male connector is formed in the middle of the head end of the female head body 1. One end of the male head insertion groove 11 penetrates the head end face of the female head body 1, and the other end of the male head insertion groove 11 extends in the axial direction of the female head body 1. The side wall of the male head insertion groove 11 is provided with a ring of spring sheet limiting grooves 12 recessed in the outward direction of the female head body 1. The head and tail ends of the spring sheet limiting grooves 12 form two limiting steps on the side wall of the male head insertion groove 11.

[0024] As shown in Figure 1 and Figure 2 , the spring sheet 2 is installed in the spring sheet limiting groove 12 and in contact with the female head body 1. The limiting steps formed at the head and tail ends of the spring sheet limiting groove 12 can limit the spring sheet 2.

[0025] As shown in Figure 3 , Figure 4 and Figure 5As shown, the spring sheet 2 can include a C-shaped first connecting portion 21, a C-shaped second connecting portion 22, and a plurality of spring leaf portions 23, all of which are connected between the first connecting portion 21 and the second connecting portion 22, and all of which are provided with a plug-in contact protrusion 231 inclined towards the center of the female head body 1, all of which are arranged and distributed in the clockwise direction or the counterclockwise direction. In operation, the plug-in contact protrusion 231 can be in contact with the male connector.

[0026] In order to improve the problem that the plug-in contact protrusion 231 is easily deformed after being in contact with the male connector due to excessive compression of the spring leaf portion 23, it is difficult to reset, as shown in Figure 5 As shown, all the spring leaf portions 23 can be respectively provided with an abutting portion 232 located on both sides of the plug-in contact protrusion 231, and all the abutting portions 232 can abut against the side wall of the male insertion slot 11 of the female head body 1. The abutting portion 232 can be used as a support point, which is conducive to the reset of the spring leaf portion 23 after being compressed, ensures that the spring leaf portion 23 will not be deformed excessively, and makes the spring sheet maintain good contact with the male connector, thereby avoiding the problem of poor male-female contact.

[0027] As shown in Figure 3 and Figure 5 The outer side edges of the first connecting portion 21 and the second connecting portion 22 can be respectively provided with a plurality of spring clamping jaws 24, and the head ends of all the spring clamping jaws 24 are bent towards the outside of the female head body 1 and in contact with the side wall of the male insertion slot 11 of the female head body 1. When the head ends of all the spring clamping jaws are bent towards the outside of the female head body, it is more conducive to cooperate with the limiting step to limit the position, which can effectively prevent the spring sheet from falling off and improve the service life of the female connector.

[0028] As a preferred embodiment, the surface of the spring sheet 2 is electroplated with a nickel layer (ammonia nickel), and the surface of the nickel layer can be electroplated with a silver layer (dull silver).

[0029] Furthermore, the surface of the silver layer can be passivated by thiol passivation treatment to form a passivated surface.

[0030] In order to facilitate the spring sheet to be loaded into the female head body 1, the side wall of the male insertion slot 11 of the female head body 1 can be coated with lubricating grease.

[0031] As shown in Figure 1 and Figure 2 In order to facilitate the installation and positioning of the female head body 1, the tail end of the female head body 1 can be provided with a limiting convex ring 13.

[0032] When assembled, after the spring sheet is loaded into the inside of the female head body 1, the spring sheet can be inserted and pulled to perform a shaping treatment by using a plug-in device, the position of the spring sheet in the female head body 1 is optimized, and it is ensured that the spring sheet can be attached to the inner wall of the female head body 1. After assembly is completed, the overall resistance of the connecting female head can be tested to ensure that the resistance is within the target range interval.

[0033] In summary, the structure of the utility model is reasonable in design, the novel spring sheet is adopted, the spring sheet can increase the contact area in limited space to improve the current carrying capacity, so that the connecting female head can carry large current, and the utility model has the advantages of high current carrying capacity, low resistance, low heat generation, good contact performance and the like.

[0034] The above embodiment is a preferred implementation manner of the utility model, but the implementation manner of the utility model is not limited by the above embodiment, and any change, modification, replacement, combination, simplification, which is not deviated from the spirit and principle of the utility model, should be an equivalent replacement manner, and all are included in the protection scope of the utility model.

Claims

1. A high-current busbar cable connector, characterized in that: The device includes a female connector body and a C-shaped spring plate. The female connector body has a male connector insertion groove at the center of its head end. One end of the male connector insertion groove penetrates the end face of the head end of the female connector body, and the other end extends axially towards the female connector body. The side wall of the male connector insertion groove has a concave spring plate limiting groove extending outwards from the female connector body. The two ends of the spring plate limiting groove form two limiting steps on the side wall of the male connector insertion groove. The spring plate is installed in the spring plate limiting groove and contacts the female connector body. The spring plate includes a C-shaped first connection. The device consists of a first connecting part, a C-shaped second connecting part, and several spaced-apart spring clips. All spring clips are connected between the first connecting part and the second connecting part. Each spring clip has a protruding interlocking contact protrusion that is inclined towards the center of the female head body. All interlocking contact protrusions are arranged in a clockwise or counterclockwise direction. The outer edges of the first connecting part and the outer edges of the second connecting part are respectively provided with several spaced-apart spring clip claws. The head ends of all spring clip claws are bent outward towards the female head body and contact the side wall of the male insertion groove of the female head body.

2. The high-current busbar cable connector according to claim 1, characterized in that: Each of the spring sections is provided with abutment parts located on both sides of the mating contact protrusion, and all abutment parts are in contact with the side wall of the male insertion groove of the female head body.

3. The high-current busbar cable connector according to claim 1, characterized in that: The surface of the spring sheet is electroplated with a nickel layer, and the surface of the nickel layer is electroplated with a silver layer.

4. The high-current busbar cable connector according to claim 3, characterized in that: The surface of the silver layer is passivated by thiol passivation treatment to form a passivated surface.

5. The high-current busbar cable connector according to claim 1, characterized in that: The sidewall of the male insertion groove of the female head body is coated with grease.

6. The high-current busbar cable connector according to claim 1, characterized in that: The tail end of the female head body is provided with a limiting protrusion ring.

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