Battery pack using vacuum insulated panel

Abstract

The utility model relates to a battery pack using a vacuum insulated panel in the technical field of power batteries, which comprises a shell base, a battery cell module and a cover shell, a first vacuum groove is arranged in the shell base, a second vacuum groove is arranged in the cover shell, an interface slot is arranged on the shell base, the cover shell is rotatably arranged on the shell base, and the second vacuum groove is arranged in the second vacuum groove. The shell base and the cover shell are internally and slidably provided with vapor chambers, each vapor chamber is internally provided with a liquid flow groove, the shell base is internally and fixedly provided with two flow guide hoses, the two flow guide hoses extend into the cover shell, the two flow guide hoses are communicated with the vapor chambers, and the top surface and the bottom surface of the battery cell module abut against the two vapor chambers. And the battery cell module is cooled and uniformly heated, so that the damage caused by over-high local temperature of the battery cell module is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of battery pack using vacuum insulation board, in particular to a kind of battery pack using vacuum insulation board applied to power battery technical field. BACKGROUND

[0002] Vacuum insulation board (Vacuum Insulation Panel, VIP board for short) is a new type of thermal insulation material, which has the characteristics of low thermal conductivity, thus has excellent thermal insulation performance.

[0003] Chinese utility model patent CN202420166427.8 specification discloses battery pack and electric equipment, comprising: cold plate;Bottom guard plate, the bottom guard plate is arranged below the cold plate;Thermal insulation protection layer, the thermal insulation protection layer is arranged between the cold plate and the bottom guard plate;Wherein, the thermal insulation protection layer includes laminated vacuum insulation board and first protection plate, the first protection plate is located between the vacuum insulation board and the bottom guard plate. This application takes into account the thermal insulation and protection requirements of battery pack, in addition, the first protection plate is located between the vacuum insulation board and the bottom guard plate, so that when the battery pack is hit from the bottom, the first protection plate reduces the risk of damage and rupture of the vacuum insulation board due to impact, improves safety and reliability.

[0004] The above-mentioned patent protects the battery pack, but the uniform temperature performance of the battery pack is also crucial to the performance and life of the battery pack. Although the vacuum insulation board isolates the inside and outside, it avoids the influence of the external environment temperature on the internal battery pack, but when the battery pack is locally overheated, the local high temperature will cause the battery pack to melt and self-ignite, causing the battery pack to be damaged. UTILITY MODEL CONTENTS

[0005] In view of the above prior art, the technical problem to be solved by the utility model is that the local high temperature of the battery pack will cause the battery pack to melt and self-ignite, causing the battery pack to be damaged.

[0006] To solve the above problems, the utility model provides a kind of battery pack using vacuum insulation board, including shell base, electric core module and cover shell, first vacuum groove is equipped in shell base, second vacuum groove is equipped in cover shell, interface slot is equipped on shell base, cover shell is rotationally installed on shell base, shell base and cover shell are slidably installed with equalizing plate in it, liquid flow groove is equipped in equalizing plate, two flow guide hoses are fixedly installed in shell base, two flow guide hoses are inserted into cover shell, two flow guide hoses are communicated with liquid flow groove, the top surface and bottom surface of electric core module are respectively abutted with two equalizing plates.

[0007] In the above-mentioned battery pack using vacuum insulation board, the electric core module is evenly heated and cooled, to avoid self-ignition due to high temperature of the electric core module.

[0008] As a further improvement of the present application, clamping springs are fixedly connected between the shell base and the corresponding heat plate and between the cover shell and the corresponding heat plate.

[0009] As a further improvement of the present application, the heat plate is fixedly installed with a limiting sliding block, and the shell base and the cover shell are each provided with a limiting sliding groove matched with the limiting sliding block.

[0010] As a further improvement of the present application, the liquid flow groove is filled with insulating oil.

[0011] As a further improvement of the present application, the flow guide hose is provided with a one-way valve, and the directions of the one-way valves in the two flow guide hoses are opposite.

[0012] As a further improvement of the present application, the shell base is rotatably installed with a mounting fixing block, and the shell base and the battery cell module are provided with screw grooves matched with the mounting fixing block.

[0013] In summary, the first vacuum groove and the second vacuum groove isolate the shell base and the cover shell from the outside, so that the ambient temperature cannot affect the inside, avoiding the high temperature in summer to cause the battery cell module to be high-temperature and even self-ignite, and the heat-absorbing insulating oil in the heat plate expands to push the insulating oil in other areas to flow, so that the insulating oil is in a flowing state, and the battery cell module is cooled and heated, avoiding the local high temperature of the battery cell module to cause damage. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0015] Figure 2 It is an internal cross-sectional view of the shell base and the cover shell of the embodiment of the present application;

[0016] Figure 3 It is a structure diagram of the heat plate of the embodiment of the present application;

[0017] Figure 4 It is a bottom view of the heat plate of the embodiment of the present application;

[0018] Figure 5 It is a schematic diagram of the mounting fixing block of the embodiment of the present application.

[0019] Explanation of reference numerals in the drawings:

[0020] 1, shell base; 101, first vacuum groove; 102, interface slot; 2, battery cell module; 3, cover shell; 301, second vacuum groove; 4, heat plate; 401, liquid flow groove; 402, limiting sliding block; 403, limiting sliding groove; 5, flow guide hose; 6, clamping spring; 7, mounting fixing block. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be described in detail below with reference to the drawings.

[0022] Embodiment:

[0023] As shown in Figure 1 and Figure 2 , a battery pack using a vacuum heat plate, comprising a shell base 1, a battery cell module 2 and a cover shell 3, the shell base 1 is provided with a first vacuum groove 101, the cover shell 3 is provided with a second vacuum groove 301, the shell base 1 is provided with an interface slot 102, the cover shell 3 is rotatably installed on the shell base 1, the shell base 1 and the cover shell 3 are both slidably installed with a heat plate 4, the heat plate 4 is provided with a liquid flow groove 401, the shell base 1 is fixedly installed with two flow guide hoses 5, the two flow guide hoses 5 both extend into the cover shell 3, the two flow guide hoses 5 both communicate with the liquid flow groove 401, and the top surface and the bottom surface of the battery cell module 2 are respectively abutted with the two heat plates 4.

[0024] As shown in Figure 3 and Figure 4 , the shell base and the corresponding heat plate and the cover shell and the corresponding heat plate are both fixedly connected with a clamping spring, the side end of the heat plate 4 is fixedly installed with a limiting sliding block 402, the shell base 1 and the cover shell 3 are both provided with a limiting sliding groove 403 matched with the limiting sliding block 402, the heat plate 4 is pushed to tightly abut with the top surface and the bottom surface of the battery cell module 2 through the compression deformation of the clamping spring 6, a heat dissipation silicon pad is fixedly installed on the heat plate 4, the heat exchange efficiency between the heat plate 4 and the battery cell module 2 is improved, the limiting sliding block 402 and the limiting sliding groove 403 limit the sliding of the heat plate 4 to avoid the sliding deviation of the heat plate 4.

[0025] The liquid flow groove 401 is filled with insulating oil, the flow guide hose 5 is provided with a one-way valve, the directions of the one-way valves in the two flow guide hoses 5 are opposite, one flow guide hose 5 transports the heat dissipation insulating oil of the lower heat plate 4 to the upper heat plate 4, and the other flow guide hose 5 transports the heat dissipation insulating oil of the upper heat plate 4 to the lower heat plate 4.

[0026] As shown in Figure 1 and Figure 5 , the shell base 1 is rotatably installed with a mounting fixed block 7, the shell base 1 and the battery cell module 2 are provided with a threaded groove matched with the mounting fixed block 7, when the battery cell module 2 is installed, the mounting fixed block 7 is rotated to align the threaded groove on the mounting fixed block 7 with the threaded groove on the shell base 1 and the battery cell module 2, and then fixed by bolts.

[0027] The battery cell module 2 is placed into the shell base 1, the heat plate 4 in the shell base 1 is in close contact with the bottom surface of the battery cell module 2, the clamping spring 6 is compressed, then bolted through the installation fixing block 7, the cover shell 3 is covered, the heat plate 4 in the cover shell 3 is in close contact with the top surface of the battery cell module 2, the external power line is connected with the battery cell module 2 through the interface slot 102, when the battery cell module 2 is used, the first vacuum groove 101 and the second vacuum groove 301 make the shell base 1 and the cover shell 3 isolated from the outside, the external environment temperature cannot affect the inside, when the battery cell module 2 is locally overheated, the heat-absorbing insulating oil in the heat plate 4 absorbs heat, based on the principle of thermal expansion and contraction, the insulating oil in the heat-absorbing area expands, thereby pushing the insulating oil in other areas to flow, so that the insulating oil in the two flow hoses 5 and the two heat plates 4 is in a flowing state, the battery cell module 2 is cooled and heated, the local temperature of the battery cell module 2 is prevented from being too high to cause damage.

[0028] In combination with the current actual demand, the above-mentioned embodiments adopted by the present application are not limited to the scope, various changes made within the knowledge range of the skilled in the art without departing from the concept of the present application still fall within the protection scope of the present application.

Claims

1. A battery pack using a vacuum adiabatic panel, characterized by: Including shell base (1), electric core module (2) and cover (3), first vacuum groove (101) is equipped in the shell base (1), second vacuum groove (301) is equipped in the cover (3), interface slot (102) is equipped on the shell base (1), the cover (3) is rotatably installed on the shell base (1), the shell base (1) and cover (3) are slidably installed with all heat plates (4) in, the all heat plate (4) is equipped with liquid flow groove (401) in, two flow guide hoses (5) are fixedly installed in the shell base (1), two the flow guide hose (5) is inserted into the cover (3) in, two the flow guide hose (5) is communicated with liquid flow groove (401), the top surface and bottom surface of electric core module (2) are respectively with two all heat plates (4) and resist.

2. The battery pack using vacuum insulated panels according to claim 1, wherein: The shell base (1) and corresponding all heat plate (4) and cover (3) and corresponding all heat plate (4) are fixedly connected with clamping spring (6) between.

3. The battery pack of claim 2, wherein: The side end of the all heat plate (4) is fixedly installed with limit sliding block (402), the shell base (1) and cover (3) are equipped with limit sliding slot (403) matched with limit sliding block (402) in.

4. The battery pack of claim 1, wherein: The liquid flow groove (401) is filled with insulating oil.

5. The battery pack of claim 4, wherein: The flow guide hose (5) is equipped with one-way valve, and the directions of the one-way valves in the two flow guide hoses (5) are opposite.

6. The battery pack of claim 1, wherein: The mounting fixed block (7) is rotatably installed on the shell base (1), and the shell base (1) and the electric core module (2) are provided with threaded grooves matched with the mounting fixed block (7).

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