CN205335315U - Group battery of easily disassembling - Google Patents

Abstract

The utility model provides a group battery of easily disassembling, includes cylindrical lithium ion electricity core, lithium battery protection board and binding clip, the binding clip includes two insulating bakelite splint that are on a parallel with the top and the bottom of group battery mutually, and the constant head tank has been seted up on the surface of splint, all pegs graft in the inside of constant head tank in the top and the bottom of cylindrical lithium ion electricity core, the groove top intermediate position department of constant head tank stays and is equipped with positive negative pole connector. Binding clip connector top is equipped with electrode fastening bolt, and fastening bolt makes bolt shank extruding nickel piece in the constant head tank is placed to cylindrical lithium ion electricity core, and nickel piece below is equipped with cylinder type utmost point post, the nickel piece is extrudeed the positive and negative pole -face that back utmost point post touched electric core. Splint fastening bolt is all installed in the four corners of binding clip, uses the splint fastening bolt at four angles of binding clip suitably to consolidate every cylindrical lithium ion electricity core of group battery after the group battery installation finishes.

Description

An easily disassembled battery pack

technical field

The utility model relates to a cylindrical lithium ion battery pack, in particular to an easily disassembled battery pack.

Background technique

At present, with the shortage of energy and the pressure of the world's environmental protection, lithium-ion batteries have been widely used, which has promoted the development and application of the battery industry. Usually, the single lithium battery is around 3-4V, which can only supply power to small electronic products. If it is used for electric bicycles or electric vehicles, it is not enough for products with large driving power requirements. At this time, multiple Batteries are combined in series and parallel. Due to the inconsistent performance attenuation of each single battery cell during use, the electrical performance of the entire group is often not up to standard due to one battery cell. The usual series-parallel connection process of cylindrical batteries is to combine them in series and parallel by spot welding through pure nickel strips or copper strips. This caused damage to the internal battery during production. After the battery pack is disassembled, the cell scrap rate is very high. Therefore it is necessary to develop an easily disassembled battery pack that does not require spot welding.

Contents of the invention

The purpose of this utility model is to provide a battery pack that is easy to disassemble. After the performance of the batteries on the battery pack is reduced, the battery pack is disassembled, and then the batteries are taken out; the batteries can be used on other low-energy electrical appliances .

In order to achieve the above object, the utility model provides the following technical solutions:

An easily disassembled battery pack includes a cylindrical lithium-ion cell, a lithium battery protection plate and a fastening splint, the fastening splint includes two insulating bakelite splints parallel to the top and bottom of the battery pack, the splints There is a positioning groove on the surface, and the top and bottom ends of the cylindrical lithium-ion battery are plugged into the positioning groove, and a positive and negative connection port is left in the middle of the groove top of the positioning groove.

There is an electrode fastening bolt above the connection port of the fastening splint. When the cylindrical lithium-ion battery is placed in the positioning groove, the fastening bolt makes the bolt squeeze the nickel sheet, and a cylindrical pole is arranged under the nickel sheet; the nickel sheet is squeezed After pressing, the pole contacts the positive and negative sides of the battery.

The four corners of the fastening splint are all equipped with splint fastening bolts. After the battery pack is installed, use the splint fastening bolts at the four corners of the fastening splint to properly reinforce each cylindrical lithium-ion cell of the battery pack.

The easy-to-disassemble battery pack can effectively avoid damage to the single cylindrical lithium battery caused by spot welding of the nickel sheet during the production of the battery pack, and it is convenient to replace the single cell when the performance of the single cell in the battery pack is degraded. Simply disassemble the battery pack and replace it with a battery that meets the requirements. The replaced batteries can be used on other low-energy electrical appliances.

Description of drawings

Figure 1 is an exploded view of the upper and lower plywood structure;

Figure 2 is a schematic diagram of the installation structure of a cylindrical cell;

Fig. 3 is a schematic cross-sectional structural view of the positioning groove on the fastening splint.

In the figure: 1. Cylindrical lithium-ion battery; 2. Lithium battery protection plate; 3. Fastening splint; 4. Fastening bolt of splint; 5. Fastening nut of splint; 6. Nickel sheet; 7. Pole; 8. Electrode fastening bolts; 9. Positioning groove.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

An easy-to-disassemble battery pack, including 1 cylindrical lithium-ion cell, 2 lithium battery protection plates, 3 fastening splints, 4 splint fastening bolts, 5 splint fastening nuts, 6 nickel sheets, 7 poles,

8 electrode fastening bolts,

Its implementation is as follows:

The spot-welding-free battery support is divided into positive pole support and negative pole support;

An easily disassembled battery pack, comprising a cylindrical lithium ion cell 1, a lithium battery protection plate 2 and a fastening splint 3, the fastening splint includes two insulating Bakelite splints parallel to the top and bottom of the battery pack , the surface of the splint is provided with a positioning groove 9, and the top and bottom ends of the cylindrical lithium-ion battery 1 are inserted into the inside of the positioning groove 9, and the middle position of the groove top of the positioning groove 9 is provided with a positive and negative connection port , there is an electrode fastening bolt 8 above the connection port. When the cylindrical lithium-ion battery cell 1 is placed in the positioning groove 9, the fastening bolt makes the bolt squeeze the nickel sheet 6, and a cylindrical pole 7 is arranged under the nickel sheet 6. ; After the nickel sheet 6 is squeezed, the pole 7 contacts the positive and negative surfaces of the battery.

The four corners of the fastening splint 3 are equipped with splint fastening bolts 4. After the battery pack is installed, use the splint fastening bolts 4 at the four corners of the fastening splint 3 to properly reinforce each cylindrical lithium-ion battery cell 1 of the battery pack. . A lithium battery protection board 2 is also installed on the side of the battery pack to protect the entire battery pack from charging and discharging.

The easy-to-disassemble battery pack can effectively avoid damage to the single cylindrical lithium battery caused by spot welding of the nickel sheet during the production of the battery pack, and it is convenient to replace the single cell when the performance of the single cell in the battery pack is degraded. Simply disassemble the battery pack and replace it with a battery that meets the requirements. The replaced batteries can be used on other low-energy electrical appliances.

Claims (3)

1. set of cells one kind easily-disassembled; including cylindrical lithium ion battery core (1), lithium battery protection board (2) and binding clip (3); described binding clip (3) includes the bakelite clamping plate of two pieces of tops in set of cells parallel to each other and bottom; the surface of clamping plate offers locating slot (9); the top of cylindrical lithium ion battery core (1) and bottom are all plugged in the inside of locating slot (9), and the groove top middle position of described locating slot (9) is installed with both positive and negative polarity connector。

2. a kind of easily-disassembled set of cells according to claim 1, it is characterized in that: binding clip (3) connector is arranged over electrode fastening bolt (8), after cylindrical lithium ion battery core (1) is placed in locating slot (9), fastening bolt makes bolt compresses nickel sheet (6), and nickel sheet (6) is connected with column type pole (7)；Nickel sheet (6) is extruded rear pole (7) and touches the positive and negative pole-face of battery core。

3. a kind of easily-disassembled set of cells according to claim 1, it is characterized in that: the corner of described binding clip (3) is mounted on clamping plate fastening bolt (4), set of cells uses clamping plate fastening bolt (4) at (3) four angles of binding clip that each cylindrical lithium ion battery core (1) of set of cells is suitably reinforced after installing。