CN215299377U

CN215299377U - High-power discharge lithium battery assembly

Info

Publication number: CN215299377U
Application number: CN202121099998.7U
Authority: CN
Inventors: 刘文朋; 马能军; 毛永强; 王新宏
Original assignee: Henan Puhang Electronic Equipment Co ltd
Current assignee: Henan Puhang Electronic Equipment Co ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2021-12-24
Anticipated expiration: 2031-05-21

Abstract

The utility model discloses a high-power discharge lithium battery pack, including the box device that is used for holding the lithium cell, the water cooling plant who is used for carrying the aerating device of nitrogen gas and is used for cooling off the lithium cell is installed respectively to box device both sides, the upper cover device that is used for sealing the box device is installed at box device top. The utility model discloses a high-power discharge lithium battery component, through the setting of nitrogen protection, the spark that has reduced the short circuit of electricity joint and produced has increased the security; through the arrangement of the water cooling device, the heat dissipation in the sealed box body is increased, and the normal working temperature of the high-power discharge lithium battery component is ensured; through the sectional arrangement of the box body, the internal protection is ensured, and the targeted maintenance is conveniently carried out.

Description

High-power discharge lithium battery assembly

Technical Field

The utility model belongs to the lithium cell field especially relates to a high-power lithium battery pack that discharges.

Background

A "lithium battery" is a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a positive/negative electrode material. Lithium metal batteries were first proposed and studied by gilbertn. lewis in 1912. In the 70 s of the 20 th century, m.s.whitetingham proposed and began to study lithium ion batteries. Because the chemical characteristics of lithium metal are very active, the requirements on the environment for processing, storing and using the lithium metal are very high. With the development of scientific technology, lithium batteries have become the mainstream.

However, in the prior art, the high-power discharge lithium battery pack is generally simply stacked in a box body, which causes: 1. the arrangement of nitrogen protection is not adopted, so that the electric connector is easy to generate sparks due to short circuit, and the safety is reduced; 2. the arrangement of a water cooling device is omitted, so that the heat dissipation in the sealed box body is reduced, and the normal working temperature of the high-power discharge lithium battery component cannot be ensured; 3. the box body is not arranged in a segmented mode, so that targeted maintenance is inconvenient to carry out, and the whole box body needs to be disassembled, assembled and maintained.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-power lithium battery pack that discharges to solve the problem that proposes in the above-mentioned background art.

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

a high-power discharge lithium battery assembly comprises a box body device for containing a lithium battery, wherein an inflation device for conveying nitrogen and a water cooling device for cooling the lithium battery are respectively arranged on two sides of the box body device, and an upper cover device for sealing the box body device is arranged at the top of the box body device; the box body device comprises a main box body, two auxiliary box bodies are symmetrically arranged on two sides of the main box body, side cover plates are arranged on the outer sides of the auxiliary box bodies, a plurality of battery blocks are arranged in the main box body, and a cushion block is arranged in the auxiliary box body on one side; the inflation device comprises a plurality of nitrogen tanks, gas pipes are arranged above the nitrogen tanks, one-way valves are arranged in the middle of the gas pipes, and pipe joints are arranged at the bottoms of the gas pipes; the water cooling device comprises a water tank, a filling cover is installed at the top of the water tank, a drainage cover is installed at the bottom of the front of the water tank, a circulating water pipe is arranged in the front of the water tank, and a diaphragm pump is installed on the circulating water pipe.

Further: the upper cover device comprises a first cover plate, a sealing gasket is uniformly adhered to the circumference of the bottom of the first cover plate, an electrode column is arranged in the middle of the first cover plate, and the electrode column and the first cover plate are welded together.

The first cover plate supports the electrode column to transmit power outwards.

Further: the upper cover device comprises a second cover plate, a sealing gasket is uniformly adhered to the circumference of the bottom of the second cover plate, an access cover is installed in the middle of the second cover plate, an electrode column is arranged in the middle of the access cover, the electrode column is adhered with the access cover, and the access cover is in sealing threaded connection with the second cover plate.

The second cover plate supports the electrode column through the access cover to transmit electric power outwards.

Further: the main box body and the auxiliary box body are made of polypropylene materials, and the cushion blocks are made of pine materials.

The polypropylene material ensures that the main box body and the auxiliary box body are light and durable, and the pine material ensures the damping performance of the cushion block.

Further: the pipe joint is welded with the gas pipe together, and the pipe joint is in sealing threaded connection with the nitrogen tank.

The welding ensures the stability and reliability of the pipe joint, and the sealing threaded connection ensures the sealing of the pipe joint connection.

Further: the filling cover and the drainage cover are respectively connected with the water tank through sealing threads, and the circulating water pipe is connected with the diaphragm pump through a clamping hoop.

Sealed threaded connection has guaranteed fill the lid with the sealed of drainage lid, the clamp connection dismouting maintenance of being convenient for the diaphragm pump.

The utility model discloses a theory of operation and use flow: the first apron supports the outside electric power that carries of electrode column, perhaps the second apron passes through the access cover supports the outside electric power that carries of electrode column, the side cover card is held vice box outside, inside the protection aerating device with water cooling plant, the nitrogen gas jar passes through the gas-supply pipe with the check valve to fill into nitrogen gas in the main tank body, the protection the battery piece, and the diaphragm pump passes through circulating pipe absorbs water liquid in the water tank to absorb heat in the main tank body through water liquid, take back the cooling in the water tank, in order to reduce temperature in the main tank.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the arrangement of nitrogen protection, sparks generated by short circuit of the electric connector are reduced, and the safety is improved;

2. through the arrangement of the water cooling device, the heat dissipation in the sealed box body is increased, and the normal working temperature of the high-power discharge lithium battery component is ensured;

3. through the sectional arrangement of the box body, the internal protection is ensured, and the targeted maintenance is conveniently carried out.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a high-power discharge lithium battery module according to the present invention;

fig. 2 is a schematic diagram of a box device of a high-power discharge lithium battery module according to the present invention;

fig. 3 is a schematic view of an inflator for a high power discharge lithium battery pack according to the present invention;

fig. 4 is a schematic view of a water cooling device of a high-power discharge lithium battery module according to the present invention;

fig. 5 is a schematic view of an upper cover device of embodiment 1 of a high-power discharge lithium battery module according to the present invention;

fig. 6 is a schematic diagram of the capping device according to embodiment 2 of the high-power discharging lithium battery module of the present invention.

In the reference symbols: 1. a case device; 101. a main box body; 102. an auxiliary box body; 103. a side cover plate; 104. a battery block; 105. cushion blocks; 2. an inflator; 201. a nitrogen tank; 202. a gas delivery pipe; 203. a one-way valve; 204. a pipe joint; 3. a water cooling device; 301. a water tank; 302. filling a cover; 303. a drainage cover; 304. a diaphragm pump; 305. a circulating water pipe; 4. a cover mounting means; 401. a first cover plate; 402. an electrode column; 403. a gasket; 404. a second cover plate; 405. and an access cover.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be further explained with reference to the accompanying drawings:

example 1

As shown in fig. 1-5, a high-power discharging lithium battery assembly comprises a box device 1 for accommodating lithium batteries, an air charging device 2 for conveying nitrogen and a water cooling device 3 for cooling the lithium batteries are respectively installed at two sides of the box device 1, and an upper cover device 4 for sealing the box device 1 is installed at the top of the box device 1; the box body device 1 comprises a main box body 101, two auxiliary box bodies 102 are symmetrically arranged on two sides of the main box body 101, side cover plates 103 are arranged on the outer sides of the auxiliary box bodies 102, a plurality of battery blocks 104 are arranged in the main box body 101, and a cushion block 105 is arranged in the auxiliary box body 102 on one side; the inflation device 2 comprises a plurality of nitrogen tanks 201, gas transmission pipes 202 are arranged above the nitrogen tanks 201, one-way valves 203 are arranged in the middle of the gas transmission pipes 202, and pipe joints 204 are arranged at the bottoms of the gas transmission pipes 202; the water cooling device 3 comprises a water tank 301, a filling cover 302 is installed at the top of the water tank 301, a drainage cover 303 is installed at the bottom of the front of the water tank 301, a circulating water pipe 305 is arranged in the front of the water tank 301, and a diaphragm pump 304 is installed on the circulating water pipe 305.

Further: the upper cover device 4 comprises a first cover plate 401, a sealing gasket 403 is uniformly adhered to the circumference of the bottom of the first cover plate 401, an electrode column 402 is arranged in the middle of the first cover plate 401, the electrode column 402 and the first cover plate 401 are welded together, and the first cover plate 401 supports the electrode column 402 to transmit power outwards; the main box body 101 and the auxiliary box body 102 are made of polypropylene materials, the cushion block 105 is made of pine materials, the polypropylene materials guarantee the main box body 101 and the auxiliary box body 102 to be light and durable, and the pine materials guarantee the damping performance of the cushion block 105; the pipe joint 204 and the gas pipe 202 are welded together, the pipe joint 204 and the nitrogen gas tank 201 are in sealed threaded connection, the welding ensures the stability and reliability of the pipe joint 204, and the sealed threaded connection ensures the connection seal of the pipe joint 204; filling lid 302 and drainage lid 303 are connected with water tank 301 sealed threaded connection respectively, and circulating pipe 305 and diaphragm pump 304 clamp are connected, and sealed threaded connection has guaranteed filling lid 302 and drainage lid 303 sealed, and clamp connection is convenient for dismouting maintenance diaphragm pump 304.

Example 2

As shown in fig. 6, embodiment 2 differs from embodiment 1 in that: the upper cover device 4 comprises a second cover plate 404, a sealing gasket 403 is uniformly adhered to the circumference of the bottom of the second cover plate 404, an access cover 405 is installed in the middle of the second cover plate 404, an electrode column 402 is arranged in the middle of the access cover 405, the electrode column 402 and the access cover 405 are adhered together, the access cover 405 and the second cover plate 404 are in sealing threaded connection, and the second cover plate 404 supports the electrode column 402 to transmit electric power outwards through the access cover 405.

The utility model discloses a theory of operation and use flow: the first cover plate 401 supports the electrode column 402 to transmit electric power outwards, or the second cover plate 404 supports the electrode column 402 to transmit electric power outwards through the access cover 405, the side cover plate 103 is clamped outside the auxiliary box body 102 to protect the internal inflating device 2 and the water cooling device 3, the nitrogen tank 201 fills nitrogen into the main box body 101 through the gas pipe 202 and the one-way valve 203 to protect the battery block 104, and the diaphragm pump 304 absorbs water liquid in the water tank 301 through the circulating water pipe 305, absorbs heat in the main box body 101 through the water liquid, and is brought back to the water tank 301 to be cooled so as to reduce the temperature in the main box body 101.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A high-power discharge lithium battery pack, characterized in that: the device comprises a box body device (1) for containing a lithium battery, wherein an air charging device (2) for conveying nitrogen and a water cooling device (3) for cooling the lithium battery are respectively arranged on two sides of the box body device (1), and an upper cover device (4) for sealing the box body device (1) is arranged at the top of the box body device (1);

the box body device (1) comprises a main box body (101), two auxiliary box bodies (102) are symmetrically arranged on two sides of the main box body (101), a side cover plate (103) is arranged on the outer sides of the auxiliary box bodies (102), a plurality of battery blocks (104) are arranged in the main box body (101), and a cushion block (105) is arranged in the auxiliary box body (102) on one side;

the inflation device (2) comprises a plurality of nitrogen tanks (201), gas transmission pipes (202) are arranged above the nitrogen tanks (201), one-way valves (203) are installed in the middle of the gas transmission pipes (202), and pipe joints (204) are arranged at the bottoms of the gas transmission pipes (202);

water cooling plant (3) include water tank (301), filling lid (302) are installed at water tank (301) top, drainage lid (303) are installed to the preceding bottom of water tank (301), water tank (301) are preceding to be provided with circulating water pipe (305), install diaphragm pump (304) above circulating water pipe (305).

2. The high power discharging lithium battery pack as claimed in claim 1, wherein: the upper cover device (4) comprises a first cover plate (401), a sealing gasket (403) is uniformly adhered to the circumference of the bottom of the first cover plate (401), an electrode column (402) is arranged in the middle of the first cover plate (401), and the electrode column (402) is welded with the first cover plate (401).

3. The high power discharging lithium battery pack as claimed in claim 1, wherein: the upper cover device (4) comprises a second cover plate (404), a sealing gasket (403) is uniformly adhered to the circumference of the bottom of the second cover plate (404), an access cover (405) is installed in the middle of the second cover plate (404), an electrode column (402) is arranged in the middle of the access cover (405), the electrode column (402) and the access cover (405) are adhered together, and the access cover (405) is in sealing threaded connection with the second cover plate (404).

4. The high power discharging lithium battery pack as claimed in claim 1, wherein: the main box body (101) and the auxiliary box body (102) are made of polypropylene materials, and the cushion block (105) is made of pine wood materials.

5. The high power discharging lithium battery pack as claimed in claim 1, wherein: the pipe joint (204) and the gas pipe (202) are welded together, and the pipe joint (204) and the nitrogen gas tank (201) are in sealed threaded connection.

6. The high power discharging lithium battery pack as claimed in claim 1, wherein: the filling cover (302) and the drainage cover (303) are respectively in sealing threaded connection with the water tank (301), and the circulating water pipe (305) is connected with the diaphragm pump (304) in a clamping manner.