High-safety lithium ion battery thermal management assembly

Abstract

The invention relates to the technical field of lithium ion batteries, and discloses a high-safety lithium ion battery thermal management assembly which comprises a lithium ion battery body, a shell is arranged outside the lithium ion battery body, insertion blocks are fixedly connected to the four corners of the lower surface of the shell, a bottom plate is arranged below the shell, and the insertion blocks are fixedly connected to the insertion blocks. Sleeves are fixedly connected to the four corners of the upper surface of the bottom plate, a plurality of circulating grooves are formed in the upper surface of the bottom plate, a cooling mechanism is arranged below the bottom plate, a sealing mechanism is arranged above the shell, and the cooling mechanism comprises air holes. According to the high-safety lithium ion battery thermal management assembly, cold air is blown into the shell through the fixing cylinders connected to the two sides of the lower surface of the bottom plate and the cooling fan, a cooling medium is led into the condensing coil through the liquid inlet pipe to cool air in the fixing box, the cold air enters the fixing cylinders through the connecting pipes, and the cooling efficiency is improved. Therefore, the effect of effectively controlling the working temperature of the lithium ion battery can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of lithium ion batteries, in particular to a high-safety lithium ion battery thermal management component. Background Art

[0002] Lithium-ion batteries are rechargeable secondary batteries that achieve the charging and discharging process through the movement of lithium ions between positive and negative electrodes. They are widely used in consumer electronics, electric vehicles, energy storage systems and other fields due to their high energy density, long life and low self-discharge rate.

[0003] With the development of electric vehicles and renewable energy storage systems, lithium-ion batteries are increasingly used. However, when lithium-ion batteries work in high or low temperature environments, their performance will be significantly affected, and may even cause battery damage or trigger safety accidents. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the present invention provides a high-safety lithium-ion battery thermal management component, which has the advantages of being able to effectively control the operating temperature of the lithium-ion battery, and solves the problems mentioned in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-safety lithium-ion battery thermal management component, comprising a lithium-ion battery body, a shell is arranged outside the lithium-ion battery body, plug blocks are fixedly connected at the four corners of the lower surface of the shell, a bottom plate is arranged below the shell, sleeves are fixedly connected at the four corners of the upper surface of the bottom plate, a number of flow slots are opened on the upper surface of the bottom plate, a cooling mechanism is arranged below the bottom plate, a sealing mechanism is arranged above the shell, the cooling mechanism includes air holes, and the number of the air holes is There are two air holes, which are respectively opened in the middle of the left and right sides of the lower surface of the base plate; a fixed tube is fixedly connected to the edge of the lower surface of the air hole, a heat dissipation fan is arranged inside the fixed tube, a fixed box is fixedly connected to the middle of the lower surface of the base plate, a condensing coil is arranged inside the fixed box, a liquid inlet pipe is fixedly connected to the middle of the left side of the lower surface of the fixed box, a liquid outlet pipe is fixedly connected to the middle of the right side of the lower surface of the fixed box, connecting pipes are fixedly connected to the middle of the left and right sides of the fixed box, and a number of air holes are opened on the front and back of the fixed box.

[0008] Preferably, the sealing mechanism comprises a placement groove, the placement groove is opened on the upper surface of the shell, a chuck is arranged above the placement groove, and a sealing gasket is fixedly connected to the upper surface of the chuck.

[0009] Preferably, a heat conducting sheet is arranged above the sealing gasket, a cover plate is fixedly connected to the upper surface of the heat conducting sheet, and fixing mechanisms are arranged on both the left and right sides of the cover plate.

[0010] The placement groove is embedded in the upper surface of the shell near the inner wall. The chuck can be stuck in the inside of the placement groove. The sealing gasket can be embedded in the upper surface of the shell through the chuck. The heat conducting sheet can accelerate the heat transfer. The cover plate covers the upper surface of the heat conducting sheet to ensure the sealing of the shell.

[0011] Preferably, the fixing mechanism comprises two fixing blocks, the upper part of one side of the two fixing blocks are respectively fixedly connected to the middle part of the left and right sides of the cover plate, and a threaded hole is opened in the middle part of the lower part of one side of the fixing block.

[0012] Preferably, a bolt is disposed on the outside of one side of the threaded hole.

[0013] Preferably, an insert pipe is fixedly connected to the middle of the upper left and right sides of the shell, and a through hole is opened in the middle of one side of the insert pipe.

[0014] The upper part of one side of the two fixing blocks is respectively vertically connected to the middle of the left and right sides of the cover plate, the threaded hole passes through the lower middle part of one side of the fixing block, one side of the two plugs is respectively vertically connected to the upper middle part of the left and right sides of the shell, the through hole is embedded in the middle part of one side of the plug, the fixing block can be inserted into the inside of the plug, the bolt can pass through the through hole and be screwed into the inside of the threaded hole to fix the cover plate and the shell together.

[0015] Compared with the prior art, the present invention provides a highly safe lithium-ion battery thermal management component, which has the following beneficial effects:

[0016] 1. The high-safety lithium-ion battery thermal management component uses fixed cylinders connected on both sides of the lower surface of the bottom plate. The cooling fan blows cold air to the inside of the shell, and the cooling medium is passed to the condensing coil through the liquid inlet pipe to cool the air inside the fixed box. The cold air enters the fixed cylinder through the connecting pipe, thereby effectively controlling the working temperature of the lithium-ion battery.

[0017] 2. The high-safety lithium-ion battery thermal management component has a placement groove on the upper surface of the shell, and the sealing gasket can be embedded in the upper surface of the shell through a chuck, and the cover plate is covered on the top of the sealing gasket, thereby achieving the effect of improving the sealing inside the shell and having a certain dust and water proof effect on the lithium-ion battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a front view structural schematic diagram of the present invention;

[0020] Figure 3 It is a schematic diagram of the cooling mechanism structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the bottom plate of the present invention from top view;

[0022] Figure 5 It is a schematic diagram of the fixing mechanism structure of the present invention.

[0023] Wherein: 1. lithium-ion battery body; 101. shell; 102. plug-in block; 103. bottom plate; 104. sleeve; 105. circulation slot; 2. cooling mechanism; 201. air hole; 202. fixing cylinder; 203. cooling fan; 204. fixing box; 205. condensing coil; 206. liquid inlet pipe; 207. liquid outlet pipe; 208. connecting pipe; 209. air hole; 3. sealing mechanism; 301. placement slot; 302. chuck; 303. sealing pad; 304. heat conducting sheet; 305. cover plate; 4. fixing mechanism; 401. fixing block; 402. threaded hole; 403. bolt; 404. plug-in tube; 405. through hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-5 A high-safety lithium-ion battery thermal management component comprises a lithium-ion battery body 1, a shell 101 is arranged outside the lithium-ion battery body 1, plug blocks 102 are fixedly connected at the four corners of the lower surface of the shell 101, a bottom plate 103 is arranged below the shell 101, sleeves 104 are fixedly connected at the four corners of the upper surface of the bottom plate 103, a number of flow slots 105 are opened on the upper surface of the bottom plate 103, a cooling mechanism 2 is arranged below the bottom plate 103, and a sealing mechanism 3 is arranged above the shell 101. The battery body 1 is placed outside the housing 101, the tops of the four plugs 102 are respectively vertically connected to the four corners of the lower surface of the housing 101, the bottom plate 103 is parallel to the bottom of the housing 101, the bottoms of the four sleeves 104 are respectively vertically connected to the four corners of the upper surface of the bottom plate 103, the plugs 102 can be inserted into the sleeves 104, and a number of flow slots 105 are evenly opened on the upper surface of the bottom plate 103, so that there is a certain gap between the lithium-ion battery body 1 and the bottom of the bottom plate 103 to increase air circulation;

[0026] The cooling mechanism 2 includes an air hole 201, and the number of the air holes 201 is two. The two air holes 201 are respectively opened in the middle of the left and right sides of the lower surface of the bottom plate 103. A fixed cylinder 202 is fixedly connected to the edge of the lower surface of the air hole 201, and a heat dissipation fan 203 is arranged inside the fixed cylinder 202. A fixed box 204 is fixedly connected to the middle of the lower surface of the bottom plate 103, and a condensing coil 205 is arranged inside the fixed box 204. A liquid inlet pipe 206 is fixedly connected to the middle of the left side of the lower surface of the fixed box 204, and a liquid outlet pipe 207 is fixedly connected to the middle of the right side of the lower surface of the fixed box 204. Connecting pipes 208 are fixedly connected to the middle of the left and right sides of the fixed box 204. A number of air holes 209 are opened on the front and back of the fixed box 204. Two air holes 201 are respectively opened in the middle of the left and right sides of the bottom plate 103, the heat dissipation fan 203 is placed inside the fixed cylinder 202, the interior of the fixed box 204 is hollow, the liquid inlet pipe 206 and the liquid outlet pipe 207 are both connected to the condensing coil 205, the cooling medium enters the condensing coil 205 through the liquid inlet pipe 206, and cools the air inside the fixed box 204, the connecting pipe 208 is connected between the fixed cylinder 202 and the fixed box 204, the cold air inside the fixed box 204 enters the interior of the fixed cylinder 202 through the connecting pipe 208, the heat dissipation fan 203 blows the cold air into the outer shell 101 through the air hole 201, and cools the lithium-ion battery body 1, and the air hole 209 is used for the circulation of air inside the fixed box 204.

[0027] Specifically, Figure 2 As shown, the sealing mechanism 3 includes a placement groove 301, which is opened on the upper surface of the shell 101, a chuck 302 is arranged above the placement groove 301, a sealing gasket 303 is fixedly connected to the upper surface of the chuck 302, a heat conducting plate 304 is arranged above the sealing gasket 303, a cover plate 305 is fixedly connected to the upper surface of the heat conducting plate 304, and a fixing mechanism 4 is arranged on both the left and right sides of the cover plate 305.

[0028] Through the above technical solution, the placement groove 301 is embedded in the side of the upper surface of the shell 101 close to the inner wall, the chuck 302 can be stuck in the inside of the placement groove 301, the sealing gasket 303 can be embedded in the upper surface of the shell 101 through the chuck 302, the heat conducting sheet 304 can accelerate the heat transfer, and the cover plate 305 covers the upper surface of the heat conducting sheet 304 to ensure the sealing of the shell 101.

[0029] Specifically, Figure 2 and Figure 5As shown, the fixing mechanism 4 includes a fixing block 401, and the number of the fixing blocks 401 is two. The upper part of one side of the two fixing blocks 401 is respectively fixedly connected to the middle of the left and right sides of the cover plate 305, a threaded hole 402 is opened in the middle of the lower part of one side of the fixing block 401, and a bolt 403 is arranged on the outside of one side of the threaded hole 402. The upper middle part of the left and right sides of the outer shell 101 is fixedly connected with a plug 404, and the middle part of one side of the plug 404 is opened with a through hole 405.

[0030] Through the above technical solution, the upper part of one side of the two fixing blocks 401 is respectively vertically connected to the middle of the left and right sides of the cover plate 305, the threaded hole 402 passes through the lower middle of one side of the fixing block 401, one side of the two inserting tubes 404 is respectively vertically connected to the upper middle of the left and right sides of the outer shell 101, the through hole 405 is embedded in the middle of one side of the inserting tube 404, the fixing block 401 can be inserted into the inside of the inserting tube 404, the bolt 403 can pass through the through hole 405 and be screwed into the inside of the threaded hole 402 to fix the cover plate 305 and the outer shell 101 together.

[0031] When in use, the operator places the lithium-ion battery body 1 inside the shell 101, places the chuck 302 at the bottom of the sealing gasket 303 inside the placement groove 301, and covers the upper surface of the sealing gasket 303 with the cover plate 305. At this time, the fixing blocks 401 on both sides are respectively inserted into the inserts 404 on both sides of the shell 101, and the bolts 403 are passed through the through holes 405 and screwed into the threaded holes 402 to connect the cover plate 305 with the shell 101. Finally, the four insert blocks 102 at the bottom of the shell 101 are respectively inserted into the four sleeves 104 on the upper surface of the bottom plate 103 to connect the shell 101 with the bottom plate 103. The cooling medium is sent to the condensing coil 205 through the liquid inlet pipe 206, and the cooling fan 203 blows cold air into the shell 101 to cool the lithium-ion battery.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-safety lithium-ion battery thermal management component, comprising a lithium-ion battery body (1), characterized in that: The lithium-ion battery body (1) is provided with a shell (101) on the outside, plug blocks (102) are fixedly connected at the four corners of the lower surface of the shell (101), a bottom plate (103) is provided below the shell (101), sleeves (104) are fixedly connected at the four corners of the upper surface of the bottom plate (103), a plurality of flow slots (105) are provided on the upper surface of the bottom plate (103), a cooling mechanism (2) is provided below the bottom plate (103), a sealing mechanism (3) is provided above the shell (101), the cooling mechanism (2) comprises air holes (201), the number of the air holes (201) is two, and the two air holes (201) are respectively provided on the lower surface of the bottom plate (103). A fixed tube (202) is fixedly connected to the middle of the left and right sides of the air hole (201) at the edge of the lower surface, a heat dissipation fan (203) is arranged inside the fixed tube (202), a fixed box (204) is fixedly connected to the middle of the lower surface of the bottom plate (103), a condensing coil (205) is arranged inside the fixed box (204), a liquid inlet pipe (206) is fixedly connected to the middle of the left side of the lower surface of the fixed box (204), a liquid outlet pipe (207) is fixedly connected to the middle of the right side of the lower surface of the fixed box (204), connecting pipes (208) are fixedly connected to the middle of the left and right sides of the fixed box (204), and a number of air holes (209) are opened on the front and back of the fixed box (204).

2. A high-safety lithium-ion battery thermal management component according to claim 1, characterized in that: The sealing mechanism (3) comprises a placement groove (301), the placement groove (301) is opened on the upper surface of the housing (101), a chuck (302) is arranged above the placement groove (301), and a sealing gasket (303) is fixedly connected to the upper surface of the chuck (302).

3. A high-safety lithium-ion battery thermal management component according to claim 2, characterized in that: A heat conducting sheet (304) is arranged above the sealing pad (303), a cover plate (305) is fixedly connected to the upper surface of the heat conducting sheet (304), and fixing mechanisms (4) are arranged on both left and right sides of the cover plate (305).

4. A high-safety lithium-ion battery thermal management component according to claim 3, characterized in that: The fixing mechanism (4) comprises a fixing block (401), the number of the fixing blocks (401) being two, the upper part of one side of the two fixing blocks (401) being fixedly connected to the middle of the left and right sides of the cover plate (305) respectively, and a threaded hole (402) is provided in the middle of the lower part of one side of the fixing block (401).

5. A high-safety lithium-ion battery thermal management component according to claim 4, characterized in that: A bolt (403) is disposed outside one side of the threaded hole (402).

6. A high-safety lithium-ion battery thermal management component according to claim 1, characterized in that: Insertion tubes (404) are fixedly connected to the middle of the upper left and right sides of the housing (101), and a through hole (405) is opened in the middle of one side of the insertion tube (404).

Images