CN215578853U

CN215578853U - Anti-seismic safe battery pack

Info

Publication number: CN215578853U
Application number: CN202122134835.4U
Authority: CN
Inventors: 谢文杰; 王永
Original assignee: Suzhou Lishen Energy Technology Co ltd
Current assignee: Suzhou Lishen Energy Technology Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-01-18
Anticipated expiration: 2031-09-06

Abstract

The utility model provides a battery pack with shock resistance and safety, which comprises: a battery cell; the two battery supports are respectively arranged on the front side and the back side of the battery cell; the lower cover is arranged at the bottom of the battery bracket, and EVA sponge cushions are fixedly arranged on the back side and the back side of the inner part of the lower cover; and the four nickel sheets are fixedly arranged on the front side and the rear side in the lower cover respectively. The utility model provides an anti-seismic safe battery pack, which is characterized in that a plurality of battery cells are sequentially arranged by arranging a battery support, are stably placed in the battery support and are matched with an EVA (ethylene vinyl acetate) sponge mat at the bottom of the battery support, so that the anti-seismic safe battery pack has an excellent anti-seismic effect, the operation stability of the battery cells is ensured, the framework design and the production are easy, the production process is safe, the structural design of the battery support fully considers the electrical safety, the safety of the battery cells and different electric potentials is ensured between the battery cells, and the heat dissipation effect is enhanced by the spaced battery cells.

Description

Anti-seismic safe battery pack

Technical Field

The utility model relates to the field of batteries, in particular to a shock-resistant safe battery pack.

Background

In order to respond to the call of energy conservation and emission reduction, new energy gradually becomes the strategic key point of the development of China, electric energy is widely popularized at present, and lithium ion batteries have the advantages of small volume, light weight, no pollution to the environment and the like, so that battery packs formed by the lithium ion batteries are widely applied.

The battery pack is generally internally composed of a plurality of battery cells, and the plurality of battery cells are assembled together, so that the power transmission capacity is stronger, and the power supply time is prolonged.

The battery cell inside each battery pack is more in number of composition, and the security is lower with the whole package of a plurality of battery cells together, and heat dispersion is poor, nevertheless separately arranges battery cell, and anti-seismic performance is lower, and the inside precision structure of battery package is more, and anti-seismic effect is poor, and inside precision part damages because of vibrations easily.

Therefore, it is necessary to provide a shock-resistant and safe battery pack to solve the above-mentioned technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides an anti-seismic safe battery pack, which solves the problems that the number of battery cells in each battery pack is large, the safety of the battery cells packed together is low, the heat dissipation performance is poor, and the anti-seismic performance is low due to the fact that the battery cells are arranged separately.

In order to solve the above technical problems, the present invention provides an anti-shock safe battery pack, including: a battery cell;

the two battery supports are respectively arranged on the front side and the back side of the battery cell;

the lower cover is arranged at the bottom of the battery bracket, and EVA sponge cushions are fixedly arranged on the back side and the back side of the inner part of the lower cover;

and the four nickel sheets are fixedly arranged on the front side and the rear side in the lower cover respectively.

Preferably, the top of lower cover is provided with the upper cover, the bottom of upper cover inner chamber is provided with the PCB protection shield, one side fixed mounting of PCB protection shield has the conducting strip to insert the row, one side of upper cover bottom is provided with the conducting strip.

Preferably, the front side and the rear side of the surface of the inner cavity of the lower cover are both fixedly connected with highland barley paper.

Preferably, a release button is fixedly installed on one side of the bottom of the inner cavity of the lower cover.

Preferably, a heat conduction device is fixedly mounted at the top of the PBC protection plate, and an exhaust hole is formed in the surface of the upper cover.

Preferably, the heat conduction device comprises a heat conduction plate, the top of the heat conduction plate is fixedly provided with a heat dissipation block, and the bottom of the heat conduction plate is provided with a heat absorption sheet.

Preferably, the surface of the PCB protection board is provided with a communication hole.

Compared with the related art, the anti-seismic safe battery pack provided by the utility model has the following beneficial effects:

the utility model provides an anti-seismic safe battery pack, which is characterized in that a plurality of battery cells are sequentially arranged by arranging a battery support, are stably placed in the battery support and are matched with an EVA (ethylene vinyl acetate) sponge mat at the bottom of the battery support, so that the anti-seismic safe battery pack has an excellent anti-seismic effect, the operation stability of the battery cells is ensured, the framework design and the production are easy, the production process is safe, the structural design of the battery support fully considers the electrical safety, the safety of the battery cells and different electric potentials is ensured between the battery cells, and the heat dissipation effect is enhanced by the spaced battery cells.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of a shock-resistant safety battery pack according to the present invention;

FIG. 2 is a schematic view of the lower cover shown in FIG. 1;

FIG. 3 is a cross-sectional view of the lower cover shown in FIG. 2;

FIG. 4 is an interior view of the lower cover shown in FIG. 1;

FIG. 5 is a bottom view of the PCB protection plate shown in FIG. 3;

FIG. 6 is an enlarged view of portion A of FIG. 4;

FIG. 7 is a schematic structural view of a first embodiment of a shock-resistant safety battery pack according to the present invention;

fig. 8 is a schematic structural view of the heat conducting device shown in fig. 6.

Reference numbers in the figures: 1. battery core, 2, nickel sheet, 3, conducting strip, 4, conducting strip power strip, 5, battery support, 6, upper cover, 7, lower cover, 8, release button, 9, PCB protection shield, 10, highland barley paper, 11, EVA foam-rubber cushion, 12, heat-conducting device, 121, heat-conducting plate, 122, radiating block, 123, heat absorbing sheet, 13, exhaust hole, 14, intercommunicating pore.

Detailed Description

The utility model is further described with reference to the following figures and embodiments.

Please refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6 in combination, wherein fig. 1 is a schematic structural diagram of a first embodiment of an anti-shock safety battery pack according to the present invention; FIG. 2 is a schematic view of the lower cover shown in FIG. 1; FIG. 3 is a cross-sectional view of the lower cover shown in FIG. 2; FIG. 4 is an interior view of the lower cover shown in FIG. 1; FIG. 5 is a bottom view of the PCB protection plate shown in FIG. 3; fig. 6 is an enlarged view of the portion a shown in fig. 4. A shock-resistant safe battery pack comprising: a battery cell 1;

the two battery supports 5 are respectively arranged on the front side and the back side of the battery cell 1;

the lower cover 7 is arranged at the bottom of the battery bracket 5, and EVA sponge cushions 11 are fixedly arranged at the back side and the front side of the interior of the lower cover 7;

and the nickel sheets 2 and the four nickel sheets 2 are respectively and fixedly arranged on the front side and the rear side inside the lower cover 7.

The battery electric core 1 package adopts eight 4.0Ah electric cores, and both ends are fixed to form by universal support, use 0.2mm back nickel piece 2 to establish ties between the battery electric core 1.

The top of lower cover 7 is provided with upper cover 6, the bottom of 6 inner chambers of upper cover is provided with PCB protection shield 9, one side fixed mounting of PCB protection shield 9 has conducting strip to insert row 4, one side of 6 bottoms of upper cover is provided with conducting strip 3.

The conducting strips 3 are galvanized copper with the thickness of 0.5mm, and the conducting strip 4 is galvanized copper with the thickness of 0.5 mm.

The PCB protection plate 9 is fixed on the left battery support 5 and the right battery support 5, and the nickel sheets 2 extend out of the tabs and are welded on the PCB protection plate 9 for collecting electric core signals.

The left battery bracket 5 and the right battery bracket 5 are fixed at the designated positions of the lower cover 7, the upper cover and the lower cover are directly stressed to limit the brackets, and finally the upper cover and the lower cover are fixed by screws.

The front side and the rear side of the surface of the inner cavity of the lower cover 7 are both fixedly connected with highland barley paper 10.

The highland barley paper 10 is used for insulation protection.

And a release button 8 is fixedly arranged on one side of the bottom of the inner cavity of the lower cover 7.

The working principle of the anti-seismic safe battery pack provided by the utility model is as follows:

when the battery pack protection device works, firstly, a battery cell 1 is arranged in a battery bracket 5, the battery cell is supported by a left bracket and a right bracket, the battery cell 1 is connected in series through nickel sheets 2, then a PCB protection plate 9 is arranged on the battery bracket 5, the current of the battery cell 1 is transmitted through positive and negative electrode lugs of the nickel sheets 2, and the voltage of the battery cell is collected and detected through other positive and negative electrode lugs of the nickel sheets 2 to protect a battery pack;

the conducting strip socket 4 is welded on the PCB protection plate 9 and is inserted into the conducting strip 3 injected on the upper cover 6, and the four conducting strips 3 are respectively corresponding to positive and negative charging and positive and negative tool bit motor; then, the EVA sponge cushion 11 and the highland barley paper 10 are attached to the battery support 5, the battery support group is installed on the lower cover 7, the release button 8 is assembled together, finally, the upper cover 6 and the lower cover 7 are installed in a combined mode, and the female end socket on the protection board and the male end socket on the machine are plugged in opposite directions to finish power transmission.

the utility model provides an anti-seismic safe battery pack, wherein a plurality of battery cells 1 are sequentially arranged by arranging a battery support 5 and are stably placed in the battery support 5, an EVA (ethylene vinyl acetate) sponge cushion 11 at the bottom of the battery support 5 is matched, so that the anti-seismic safe battery pack has an excellent anti-seismic effect, the operation stability of the battery cells 1 is ensured, the framework design and the production are easy, the production process is safe, the structural design of the battery support 5 fully considers the electrical safety, the safety of the battery cells and different electric potentials is ensured, and the heat dissipation effect is enhanced by the spaced battery cells 1.

Second embodiment

Referring to fig. 7 and 8 in combination, a second embodiment of the present application provides another shock-resistant safety battery pack based on the shock-resistant safety battery pack provided in the first embodiment of the present application. The second embodiment is only the preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.

Specifically, the battery pack with shock resistance and safety provided by the second embodiment of the present application is different in that, in the battery pack with shock resistance and safety, the PBC protection plate 9 is fixedly mounted with the heat conduction device 12 at the top, and the surface of the upper cover 6 is provided with the vent hole 13.

The heat conducting device 12 includes a heat conducting plate 121, a heat dissipating block 122 is fixedly mounted on the top of the heat conducting plate 121, and a heat absorbing plate 123 is disposed on the bottom of the heat conducting plate 121.

The heat absorbing sheet 123 is provided with 7 sheets, which are sequentially inserted between the battery cells 1 to absorb heat of the battery cells 1 on the left and right sides.

The heat conducting plate 121 is disposed on the top of the PCB protection plate 9, and the heat absorbing plate 123 extends to a position between the two battery cells 1 through the communication hole 14, and absorbs heat emitted from the two battery cells 1.

The surface of the PCB protection board 9 is provided with a communication hole 14.

during operation, the heat absorbing sheet 123 is first inserted between the two battery cells 1 to absorb heat dissipated from the battery cells 1 and conduct the heat to the heat conducting plate 121, and the heat conducting plate 121 continues to conduct the heat upwards to the heat dissipating block 122, and then is discharged from the inside of the upper cover 6 through the vent hole 13.

the utility model provides an anti-seismic safe battery pack, wherein a heat conduction device 12 is arranged to dissipate heat of bottom battery cores 1, and a heat absorption sheet 123 extends between two battery cores 1 to absorb heat and upwards transfer a heat dissipation block 122, so that the heat in a lower cover 7 is quickly discharged by an exhaust hole 13 of an upper cover 6, the heat in the lower cover is reduced, and the service life of the battery cores 1 is prolonged.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A shock-resistant safe battery pack, comprising: a battery cell;

2. An anti-seismic safe battery pack as claimed in claim 1, wherein an upper cover is disposed on the top of the lower cover, a PCB protection plate is disposed on the bottom of the inner cavity of the upper cover, a conductive strip socket is fixedly mounted on one side of the PCB protection plate, and a conductive strip is disposed on one side of the bottom of the upper cover.

3. The shock-resistant safe battery pack according to claim 1, wherein highland barley paper is fixedly connected to both the front side and the rear side of the inner cavity surface of the lower cover.

4. An earthquake-resistant safe battery pack according to claim 1, wherein a release button is fixedly mounted on one side of the bottom of the inner cavity of the lower cover.

5. An earthquake-proof safe battery pack as claimed in claim 2, wherein the top of the PCB protection board is fixedly provided with a heat conduction device, and the surface of the upper cover is provided with an air vent.

6. An earthquake-resistant safe battery pack according to claim 5, characterized in that the heat conducting device comprises a heat conducting plate, the top of the heat conducting plate is fixedly provided with a heat dissipating block, and the bottom of the heat conducting plate is provided with a heat absorbing sheet.

7. An earthquake-resistant safe battery pack according to claim 2, wherein the surface of the PCB protection board is provided with communication holes.