CN215299569U

CN215299569U - Conduction piece for power battery

Info

Publication number: CN215299569U
Application number: CN202121954962.2U
Authority: CN
Inventors: 吴国平
Original assignee: Luxin Technology Dongguan Co ltd
Current assignee: Luxin Technology Dongguan Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2021-12-24
Anticipated expiration: 2031-08-19

Abstract

The utility model discloses a conducting piece used on a power battery, which comprises a conducting piece body, wherein the conducting piece body comprises a first hard area, a second hard area and a flexible shockproof soft area which is connected between the first hard area and the second hard area and can be bent; the conducting piece body is formed by laminating at least two copper foils and hot-pressing; the shockproof soft area can be bent for the second time, and the whole bendable angle is 0-120 degrees. The utility model discloses reduce self oxidation rusty while also have the shockproof effect, further stabilized the connection between electric automobile and the power battery, improved electrically conductive efficiency.

Description

Conduction piece for power battery

Technical Field

The utility model relates to a power battery field especially relates to a piece that switches on for power battery.

Background

In an electric automobile, a circuit assembly of the automobile and a power battery need to be connected and conducted through a conducting piece, and the purpose of power supply of the power battery is achieved. The conducting parts circulating on the market are mainly wire harnesses with a braided wire structure and an integral block-shaped conducting sheet. The pencil of braided wire structure is in the automobile inside universal use for connecting instrument subassembly, lighting components, other auxiliary electrical apparatus etc. for circuit structure is last, and the electric current of many times because power battery output is too big, leads to temperature rising in the pencil, and the resistance is corresponding to be increased, leads to exporting electrically conductive effect not so ideal. Therefore, on the basis of the wiring harness, a block-shaped conducting sheet is replaced, one end of the conducting sheet is connected with a circuit assembly of the automobile, and the other end of the conducting sheet is connected with the power battery. The conducting sheet is generally made of a material with strong conductivity so as to ensure stronger conductivity, and is made into an integral block shape, so that the contact area and the heat dissipation area are increased, and the conducting efficiency is improved. However, due to the selection of materials, the common conducting sheet on the market is generally easy to oxidize and rust, so that the service life is short, and the conducting efficiency between the electric automobile and the power battery is influenced.

SUMMERY OF THE UTILITY MODEL

To the above, an object of the utility model is to provide a switch-on piece for on power battery, still shockproof effect when reducing self oxidation rusty has further stabilized being connected between electric automobile and the power battery, has improved electrically conductive efficiency.

The utility model discloses a reach the technical scheme that above-mentioned purpose adopted and be:

a lead to piece for on power battery, includes one and leads to a body, its characterized in that: the conducting piece body comprises a first hard area, a second hard area and a bendable shockproof soft area which is connected between the first hard area and the second hard area; the conducting piece body is formed by laminating at least two copper foils and hot-pressing; the shockproof soft area can be bent for the second time, and the whole bendable angle is 0-120 degrees.

Further, a copper layer is plated on the conducting part body, a nickel layer is plated on the copper layer, and a tin layer is plated on the nickel layer.

Further, the thickness of the copper layer is 1.5-3 μm; the thickness of the nickel layer is 1-3.0 μm; the thickness of the tin layer is 5-10 mu m.

Furthermore, the conducting piece body is sheet-shaped, and the conducting piece body after the shockproof soft area is bent is Z-shaped.

Further, the thickness of the copper foil is 0.05-0.2 mm.

Further, the copper foil is 50 sheets.

Furthermore, a first hanging hole is formed in the first hard area; a second hanging hole is formed in the second hard area; a connecting piece is arranged in the first hanging hole.

Furthermore, the first hard area and the second hard area are respectively provided with at least one fixing threaded hole.

The utility model has the advantages that:

(1) through setting up to switch on a body and setting up a first hard district that electric automobile circuit subassembly is connected, the hard district of a second of being connected with power battery, switch on moreover that the piece is whole to be the slice to increased respectively with electric automobile circuit subassembly and power battery between area and the heat radiating area of contact, improved electrically conductive efficiency and reduced the temperature rise. The conducting piece body is formed by laminating at least two copper foils and hot pressing, a shockproof soft area is further arranged in the middle of the conducting piece body, and the whole bendable angle is 0-120 degrees. In the automobile driving process, the shockproof soft area can be correspondingly adjusted in bending angle according to the shaking of the automobile during walking, so that the first hard area is stably connected with the circuit assembly of the electric automobile and the second hard area is stably connected with the power battery in the automobile, the connection between the electric automobile and the power battery is ensured, the combination stability between structures is increased, the fixing strength is increased, the use reliability of the conducting part body is improved, and the conducting efficiency is further improved.

(2) Through electroplating a copper layer on leading through the body to improved the electric conductivity that leads through the body, the adhesion of copper layer is better moreover, enables the better attached to of nickel layer on leading through the piece. Through electroplate a nickel layer on the copper layer, improved the wearability and the heat resistance of leading through a body, effectively protected and led through a body. And the nickel layer forms a base bed to make the tin layer better adhere. Through electroplate a tin layer on the nickel layer, thereby effectively prevent to switch on a direct contact to the air and rusty and corroded by the oxidation, guaranteed the contact stability of switching on a body, further improved the electrically conductive efficiency of switching on a body, the outward appearance of switching on a body after the tin-plating moreover is brighter, cleaner and tidier, has improved this whole pleasing to the eye degree of switching on a body.

The above is an overview of the technical solution of the present invention, and the present invention is further explained with reference to the accompanying drawings and the detailed description.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic side view of the present invention;

FIG. 3 shows a plating structure of the present invention;

in the figure: 1. a conducting piece body; 2. a first hard region; 21. a first hanging hole; 22. a connecting member; 3. a second hard region; 31. a second hanging hole; 4. a shockproof soft area; 5. copper foil; 6. a copper layer; 7. a nickel layer; 8. a tin layer; 9. and fixing the threaded hole.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings and preferred embodiments.

Referring to fig. 1 to 3, an embodiment of the present invention provides a conducting element for a power battery, including a conducting element body 1, where the conducting element body 1 includes a first hard area 2, a second hard area 3, and a bendable shockproof soft area 4 connected between the first hard area 2 and the second hard area 3; the conducting piece body 1 is formed by laminating and hot-pressing at least two copper foils 5; the shockproof soft area 4 can be bent for the second time, and the whole bendable angle is 0-120 degrees.

Through setting up to switch on a body 1 and establishing as a first hard district 2 that electric automobile circuit subassembly is connected, hard district 3 of a second of being connected with power battery to increased respectively with electric automobile circuit subassembly and power battery between the area of contact and radiating area, improved the electrically conductive efficiency who switches on a body 1 and reduced the temperature rise that switches on a body 1. The conducting piece body 1 is formed by laminating and hot-pressing at least two copper foils 5, a bendable shockproof soft area 4 is further arranged in the middle, and the whole bendable angle is 0-120 degrees. In the automobile driving process, the shockproof soft area 4 can be correspondingly adjusted in bending angle according to the shaking of the automobile during walking, so that the first hard area 2 is stably connected with the circuit assembly of the electric automobile and the second hard area 3 is stably connected with the power battery in the automobile, the combination stability between the structures is increased, the fixing strength is increased, the use reliability of the conducting part body 1 is improved, and the conducting efficiency is further improved.

As for the shape of the conducting piece body 1, as shown in fig. 1 to 2, the conducting piece body 1 is sheet-shaped, and the conducting piece body 1 after bending the shockproof soft area is Z-shaped. Through setting up to the slice to switching on a body 1 to there are bigger area of contact and heat radiating area than the pencil of weaving the line structure, further improved the electrically conductive efficiency who switches on a body 1 and reduced the temperature rise that switches on a body 1.

As for the outer layer structure of the via body 1, as shown in fig. 3, the via body 1 is plated with a copper layer 6, the copper layer 6 is plated with a nickel layer 7, and the nickel layer 7 is plated with a tin layer 8. The conductivity of the conducting piece body 1 is improved by electroplating the copper layer 6 on the conducting piece body 1, and the nickel layer 7 can be better attached to the conducting piece body 1 due to better adhesion of the copper layer 6. By electroplating a nickel layer 7 on the copper layer 6, the wear resistance and the heat resistance of the conducting piece body 1 are improved, and the conducting piece body 1 is effectively protected. And the nickel layer 7 forms a base to better adhere the tin layer 8 to the via body 1. Through electroplating a tin layer 8 on nickel layer 7, thereby effectively prevent to switch on a body 1 direct contact air and by oxidation rust and corroded, improved the life of switching on a body 1, guaranteed the contact stability of switching on a body 1, further improved the electrically conductive efficiency of switching on a body 1, the outward appearance that switches on a body 1 after the tin-plating is brighter moreover, cleaner and tidier, improved this whole pleasing to the eye degree that switches on.

Preferably, the thickness of the copper layer is 1.5-3 μm; the thickness of the nickel layer is 1-3.0 μm; the thickness of the tin layer is 5-10 mu m.

As for the internal structure of the conductive part body 1, as shown in fig. 3, the thickness of the copper foil 5 is 0.05 to 0.2 mm. The copper foil 5 has good conductivity and low price, and has strong antistatic capability, thereby effectively ensuring the conductive efficiency of the conductive part body 1 and reducing the production cost of the conductive part body 1. The copper foil 5 also has a better adhesion, enabling a better adhesion of the later electroplated copper layer 6.

Preferably, the thickness of each copper foil 5 is 0.1mm, and the via body 1 is manufactured by laminating and hot-pressing 50 copper foils 5.

In order to better enable the first hard area 22 to be stably connected with the circuit assembly of the electric vehicle and the second hard area 33 to be stably connected with the power battery in the vehicle, as shown in fig. 1 to 2, a first hanging hole 21 is formed on the first hard area 2; a second hanging hole 31 is formed on the second hard area 3; a connecting piece 22 is arranged in the first hanging hole 21. Through setting up this connecting piece 22, connecting piece 22 is pegged graft on electric automobile circuit subassembly, makes 2 accessible of first hard district this connecting pieces 22 be connected with electric automobile circuit subassembly, has increased electric automobile circuit subassembly and has switched on the combination stability between the piece, and the fixed dynamics of increase improves the use reliability that switches on the piece. The second hanging hole 31 is formed in the second hard area 3, so that components in the power battery can be inserted into the second hanging hole 31, the structure and the stability of the power battery and the conducting piece are improved, and the use reliability of the conducting piece is further improved.

Preferably, the connecting member 22 is a rivet.

In order to better fix the lead-through body 1, as shown in fig. 1 to 2, at least one fixing threaded hole 9 is further provided on each of the first hard area 2 and the second hard area 3. Through still set up an at least fixed screw hole 9 respectively on first hard district 2 and the hard district 3 of second, switch on the cooperation between 1 accessible screw of a body and the fixed screw hole 9, make self be fixed in the place of various needs to make the stable connection between electric automobile circuit subassembly and the power battery, enlarged this applicable scope of switching on, improved this practicality that switches on, further guaranteed this electrically conductive efficiency that switches on.

The embodiment of the utility model provides an above-mentioned production technology that is used for the piece that switches on power battery is still provided, including following step:

(1) winding and laminating at least two copper foils 5, and cutting the copper foils into required sheets;

(2) putting the cut sheet copper foil 5 on a molding press, and performing high-temperature hot pressing at 600-900 ℃ on two ends of the cut sheet copper foil 5 by the molding press respectively to enable the two ends to be compacted and combined respectively to form a first hard area 2 and a second hard area 3, wherein a bendable shockproof soft area 4 is formed in an area without high-temperature hot pressing in the middle;

(3) respectively forming at least one fixed threaded hole 9 on the first hard area 2 and the second hard area 3 after high-temperature hot pressing through a screw tap;

(4) forming a first hanging hole 21 on the first hard area 2 after high-temperature hot pressing, and forming a second hanging hole 31 on the second hard area 3;

(5) ultrasonic cleaning is carried out on the conducting piece body 1 subjected to high-temperature hot pressing, the cleaning time is 5-10 minutes, the cleaning temperature is 50-80 ℃, and a cleaning solution is a 5-10% cleaning agent water solution;

(6) sequentially electroplating a copper layer 6, a nickel layer 7 and a tin layer 8 on the surface of the conducting part body 1 subjected to ultrasonic cleaning from bottom to top;

(7) bending the electroplated shockproof soft area 4;

(8) a connecting piece 22 connected with the electric automobile circuit assembly is arranged on the first hanging hole 21;

wherein, the steps (3) and (4) are not in sequence, and the steps (7) and (8) are not in sequence.

The utility model provides a production technology for last conduction piece of power battery, through coiling range upon range of cutting out with several copper foils 5 earlier, both ends hot pressing forms first hard district 2 and the hard district 3 of second again, the middle part is regional to keep away the empty shockproof soft district 4 that forms and to buckle, then follow supreme copper plate 6 down, nickel layer 7, tin layer 8 protects conduction piece body 1, thereby realize that conduction piece body 1 has the shockproof effect in addition when reducing self oxidation rusty, further stabilized the connection between electric automobile and the power battery, the combination stability between the structure has been increased, increase fixed dynamics, the performance of conduction piece body 1 has been promoted, the efficiency of leading electrically conductive is improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that other structures obtained by adopting the same or similar technical features as the above embodiments of the present invention are all within the protection scope of the present invention.

Claims

1. A lead to piece for on power battery, includes one and leads to a body, its characterized in that: the conducting piece body comprises a first hard area, a second hard area and a bendable shockproof soft area which is connected between the first hard area and the second hard area; the conducting piece body is formed by laminating at least two copper foils and hot-pressing; the shockproof soft area can be bent for the second time, and the whole bendable angle is 0-120 degrees.

2. The lead through for use on a power battery of claim 1, wherein: the conducting piece body is plated with a copper layer, the copper layer is plated with a nickel layer, and the nickel layer is plated with a tin layer.

3. The lead through for use on a power battery of claim 2, wherein: the thickness of the copper layer is 1.5-3 mu m; the thickness of the nickel layer is 1-3.0 μm; the thickness of the tin layer is 5-10 mu m.

4. The lead through for use on a power battery of claim 1, wherein: the conducting piece body is sheet-shaped, and the conducting piece body after the shockproof soft area is bent is Z-shaped.

5. The lead through for use on a power battery of claim 1, wherein: the thickness of the copper foil is 0.05-0.2 mm.

6. The lead through for use on a power battery of claim 5, wherein: the copper foil is 50 pieces.

7. The lead through for use on a power battery of claim 1, wherein: a first hanging hole is formed in the first hard area; a second hanging hole is formed in the second hard area; a connecting piece is arranged in the first hanging hole.

8. The lead through for use on a power battery of claim 1, wherein: and the first hard area and the second hard area are respectively provided with at least one fixed threaded hole.