Sealed new energy battery

Abstract

The utility model discloses a sealed new energy battery which comprises a battery outer frame, two sides of the battery outer frame are welded with fixing plates, the two groups of fixing plates are of a symmetrical structure relative to the battery outer frame, the battery outer frame is screwed and fixed on a vehicle chassis through the fixing plates on the two sides, and a plurality of groups of blade batteries are uniformly arranged in the battery outer frame. The surface of the battery outer frame is covered with a heat-conducting fin, and a plurality of groups of embedded fins are fixedly arranged at the bottom of the heat-conducting fin. According to the sealed type new energy battery, the heat dissipation coil pipe can conduct heat dissipation work on the heat conduction piece and a large number of embedded fins at the bottom of the heat conduction piece, and efficient heat dissipation work on the blade battery is completed; the embedded fins are arranged, so that the heat dissipation contact area between the blade battery and the heat-conducting fins can be greatly increased, the heat exchange efficiency is improved, and heat generated by the battery is quickly dissipated; and meanwhile, heat in the blade battery pack can be distributed more uniformly, and the condition of local overheating is avoided.

Description

Technical Field

[0001] The utility model relates to the field of new energy batteries, and specifically relates to a sealed new energy battery. Background Art

[0002] The structure of the blade battery mainly consists of three parts: battery cells, battery modules, and battery packs. The positive electrode sheet, negative electrode sheet, and separator of the blade battery are all made into rectangular sheet structures, and the aspect ratio of the positive and negative electrode sheets exceeds 10:1. After stacking and assembling the cover plate, side plate, spacer ring, etc., the shell is put on to form the battery cell, and its thickness is only 13.5 mm, so it is called the "blade battery". Multiple battery cells form a battery module, and then multiple battery modules form a battery pack. The blade battery adopts the CTP (Cell to Pack) technology, that is, the module-free technology, which omits the battery module assembly link, directly integrates the battery cells into the battery pack, reduces the number of components, improves the volume utilization rate and production efficiency, and also reduces the manufacturing cost.

[0003] When the blade battery, as a new energy battery, provides power for the vehicle, especially in summer, a large amount of heat generated between two adjacent groups of blade batteries cannot be dissipated in time; continuous high temperature may cause the battery to overheat and get out of control, resulting in serious accidents such as smoking, fire, or even explosion. Especially in extreme situations such as vehicle collisions or when using the vehicle in a high-temperature environment, the risk is even higher. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a sealed new energy battery to solve the defects mentioned in the above background art.

[0005] To achieve the above purpose, a sealed new energy battery is provided, including a battery outer frame. Fixing plates are welded on both sides of the battery outer frame, and the two groups of fixing plates are symmetrical about the battery outer frame. At the same time, the battery outer frame is fixed on the vehicle chassis by screwing through the fixing plates on both sides. Multiple groups of blade batteries are evenly arranged inside the battery outer frame. The surface of the battery outer frame is covered with a heat conducting sheet, and multiple groups of embedded fins are fixedly arranged at the bottom of the heat conducting sheet. At the same time, a heat dissipation coil is fixedly installed on the surface of the heat conducting sheet. One end of the heat dissipation coil is fixedly installed with a heat dissipation medium inlet pipe, and the other end of the heat dissipation coil is fixedly installed with a heat dissipation medium outlet pipe.

[0006] Preferably, a heat dissipation space is opened between two adjacent groups of blade batteries, and the width of the heat dissipation space is 3 mm.

[0007] Preferably, the heat dissipation spaces are evenly arranged in multiple groups, and the number of heat dissipation spaces is the same as that of the embedded fins. At the same time, multiple groups of embedded fins are evenly and equidistantly arranged at the bottom of the heat conducting sheet.

[0008] Preferably, the heat dissipation space is adapted to the size of the embedded fins, and the embedded fins are inserted into the interior of the heat dissipation space. At the same time, the embedded fins are fixedly connected to the heat dissipation coil through a heat conduction sheet.

[0009] Preferably, the heat conduction sheet is a rectangular structure made of a metal material, and the heat dissipation coil on the surface of the heat conduction sheet is arranged in an "S" shape.

[0010] Preferably, the surface of the battery outer frame is covered with a sealing seat, and the sealing seat is screwed and fixed on the battery outer frame. At the same time, a sealing gasket is installed between the battery outer frame and the sealing seat, and the battery outer frame and the sealing seat are sealed through the sealing gasket. A sealing upper cover is fixedly installed on the surface of the sealing seat.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] The present utility model can dissipate heat from the heat conduction sheet and a large number of embedded fins at its bottom through the heat dissipation coil, completing the efficient heat dissipation work of the blade battery; the setting of the embedded fins can greatly increase the heat dissipation contact area between the blade battery and the heat conduction sheet, thereby improving the heat exchange efficiency and quickly dissipating the heat generated by the battery; at the same time, it helps to make the heat distribution in the blade battery pack more uniform and avoid the situation of local overheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view schematic diagram of the structure of the present utility model;

[0014] Figure 2 is Figure 1 the bottom view of

[0015] Figure 3 is Figure 1 the sectional view of

[0016] Figure 4 It is a schematic diagram of the surface structure of the battery outer frame;

[0017] Figure 5 is Figure 4 the enlarged schematic diagram of part A in

[0018] Reference numerals in the figures: 1. Battery outer frame; 2. Fixed plate; 3. Blade battery; 31. Heat dissipation space; 4. Embedded fin; 5. Heat conduction sheet; 6. Heat dissipation coil; 7. Sealing gasket; 8. Sealing seat; 9. Sealing upper cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Please refer to Figures 1-5, the utility model provides a sealed new energy battery, which includes a battery outer frame 1. Fixed plates 2 are welded on both sides of the battery outer frame 1, and the two groups of fixed plates 2 are symmetrical structures with respect to the battery outer frame 1. At the same time, the battery outer frame 1 is screwed and fixed on the vehicle chassis through the fixed plates 2 on both sides. A plurality of blade batteries 3 are evenly arranged inside the battery outer frame 1. A heat conducting sheet 5 covers the surface of the battery outer frame 1, and a plurality of embedded fins 4 are fixedly arranged at the bottom of the heat conducting sheet 5. At the same time, a heat dissipation coil 6 is fixedly installed on the surface of the heat conducting sheet 5. One end of the heat dissipation coil 6 is fixedly installed with a heat dissipation medium inlet pipe, and the other end of the heat dissipation coil 6 is fixedly installed with a heat dissipation medium outlet pipe.

[0020] Working principle: When installing, first install a plurality of blade batteries 3 inside the battery outer frame 1, and a heat dissipation space 31 is opened between two adjacent blade batteries 3; then hold the heat conducting sheet 5 by hand, and insert a large number of embedded fins 4 at the bottom of the heat conducting sheet 5 into the heat dissipation space 31 between two adjacent blade batteries 3. Subsequently, the heat conducting sheet 5 is screwed and fixed on the battery outer frame 1. Finally, the sealing upper cover 9 is fixedly connected to the surface of the battery outer frame 1 through the sealing seat 8 at the bottom; when this battery is working, the coolant can enter the inside of the heat dissipation coil 6, and the heat dissipation coil 6 can dissipate heat from the heat conducting sheet 5 and a large number of embedded fins 4 at its bottom, completing the efficient heat dissipation work for the blade batteries 3; the setting of the embedded fins 4 can greatly increase the heat dissipation contact area between the blade batteries 3 and the heat conducting sheet 5, thereby improving the heat exchange efficiency and quickly dissipating the heat generated by the battery; at the same time, it helps to make the heat distribution in the blade battery 3 group more uniform and avoid the situation of local overheating.

[0021] As a preferred embodiment, a heat dissipation space 31 is opened between two adjacent blade batteries 3, and the width of the heat dissipation space 31 is 3 mm.

[0022] As a preferred embodiment, a plurality of heat dissipation spaces 31 are evenly arranged, and the number of heat dissipation spaces 31 is the same as that of the embedded fins 4. At the same time, a plurality of groups of embedded fins 4 are evenly arranged at equal intervals and installed at the bottom of the heat conducting sheet 5.

[0023] The heat dissipation space 31 is adapted to the size of the embedded fins 4, and the embedded fins 4 are inserted into the heat dissipation space 31. At the same time, the embedded fins 4 are fixedly connected to the heat dissipation coil 6 through the heat conducting sheet 5.

[0024] As a preferred embodiment, the heat conducting sheet 5 is made of a metal material and is in a rectangular structure, and the heat dissipation coil 6 on the surface of the heat conducting sheet 5 is arranged in an "S" shape.

[0025] The surface of the battery outer frame 1 is covered with a sealing seat 8, and the sealing seat 8 is screwed and fixed on the battery outer frame 1. At the same time, a sealing gasket 7 is installed between the battery outer frame 1 and the sealing seat 8, and the battery outer frame 1 and the sealing seat 8 are sealed through the sealing gasket 7. A sealing upper cover 9 is fixedly installed on the surface of the sealing seat 8.

Claims

1. A sealed new energy battery, comprising a battery frame (1), characterized in that: The battery outer frame (1) is welded with fixing plates (2) on both sides, and the two groups of fixing plates (2) are symmetrical structures with respect to the battery outer frame (1). At the same time, the battery outer frame (1) is screwed and fixed to the vehicle chassis through the fixing plates (2) on both sides, and multiple groups of blade batteries (3) are evenly arranged inside the battery outer frame (1). The surface of the battery outer frame (1) is covered with a heat conducting sheet (5), and multiple groups of embedded fins (4) are fixedly arranged at the bottom of the heat conducting sheet (5). At the same time, a heat dissipation coil (6) is fixedly installed on the surface of the heat conducting sheet (5), a heat dissipation medium inlet pipe is fixedly installed at one end of the heat dissipation coil (6), and a heat dissipation medium outlet pipe is fixedly installed at the other end of the heat dissipation coil (6).

2. A sealed new energy battery according to claim 1, characterized in that: A heat dissipation space (31) is provided between two adjacent groups of blade batteries (3), and the width of the heat dissipation space (31) is 3 mm.

3. A sealed new energy battery according to claim 2, characterized in that: The heat dissipation spaces (31) are evenly arranged in multiple groups, and the number of the heat dissipation spaces (31) is consistent with the number of the embedded fins (4). At the same time, the embedded fins (4) are evenly arranged in multiple groups at equal intervals and installed at the bottom of the heat conducting sheet (5).

4. A sealed new energy battery according to claim 3, characterized in that: The heat dissipation space (31) is matched to the size of the embedded fin (4), and the embedded fin (4) is inserted into the interior of the heat dissipation space (31), while the embedded fin (4) is fixedly connected to the heat dissipation coil (6) via a heat conducting sheet (5).

5. A sealed new energy battery according to claim 4, characterized in that: The heat conducting plate (5) is a rectangular structure made of metal material, and the heat dissipation coil (6) on the surface of the heat conducting plate (5) is arranged in an "S" shape.

6. A sealed new energy battery according to claim 1, characterized in that: The surface of the battery outer frame (1) is covered with a sealing seat (8), and the sealing seat (8) is screwed and fixed on the battery outer frame (1). At the same time, a sealing gasket (7) is installed between the battery outer frame (1) and the sealing seat (8), and the battery outer frame (1) and the sealing seat (8) are sealed by the sealing gasket (7). A sealing upper cover (9) is fixedly installed on the surface of the sealing seat (8).

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