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CN-114865168-B - Liquid cooling heat abstractor and have its energy storage battery module

CN114865168BCN 114865168 BCN114865168 BCN 114865168BCN-114865168-B

Abstract

The invention relates to a liquid cooling heat dissipation device and an energy storage battery module with the same, comprising a four-way valve and a flow guide assembly, wherein the four-way valve comprises a first chamber, a second chamber, a third chamber and a fourth chamber, a main water inlet is arranged on the first chamber, a main water outlet is arranged on the third chamber, the first chamber is communicated with the fourth chamber, the second chamber is communicated with the third chamber, the first chamber is provided with a first water inlet, the second chamber is provided with a first water return port, the fourth chamber is provided with a second water inlet, the third chamber is provided with a second water return port, the flow guide assembly comprises a first flow guide channel and a second flow guide channel, the first flow guide channel comprises a first flow guide inlet and a first flow guide outlet, and the second flow guide channel comprises a second flow guide inlet and a second flow guide outlet. The flow guide assembly for cooling is not arranged at the bottom of the energy storage battery any more, and the bearing is not needed, so that the wall thickness of the flow guide assembly can be reduced, the occupied space is reduced, and the energy density of the energy storage battery is increased.

Inventors

  • CAI QING
  • YOU FENG
  • WANG CHENGYE

Assignees

  • 启东沃太新能源有限公司

Dates

Publication Date
20260505
Application Date
20220512

Claims (8)

  1. 1. A liquid cooling heat dissipation device is characterized by comprising a four-way valve (100) and a flow guide assembly (200) connected to the four-way valve (100), wherein the four-way valve (100) comprises a first chamber (101), a second chamber (102), a third chamber (103) and a fourth chamber (104), a main water inlet (105) is arranged on the first chamber (101), a main water outlet (106) is arranged on the third chamber (103), the first chamber (101) is communicated with the fourth chamber (104), the second chamber (102) is communicated with the third chamber (103), a first water inlet (107) is arranged on the first chamber (101), a first water return port (108) is arranged on the second chamber (102), a second water inlet (110) is arranged on the fourth chamber (104), a second water return port (109) is arranged on the third chamber (103), the flow guide assembly (200) comprises a first flow guide channel and a second flow guide channel, the first flow guide channel comprises a first water return port (206) connected with the first water inlet (107) and a first water return port (207) connected with the first water return port (108), the second diversion channel comprises a second diversion inlet (209) communicated with the second water inlet (110) and a second diversion outlet (208) communicated with the second water return port (109); The flow guide assembly (200) comprises a cuboid shell, wherein a baffle (210) is arranged in the shell, the interior of the shell is divided into a first cavity and a second cavity by the baffle (210), the first flow guide channel is arranged in the first cavity, and the second flow guide channel is arranged in the second cavity; The four-way valve (100) is a cuboid with a hollow cavity inside, a first partition board (111) and a second partition board (112) are arranged in the hollow cavity, a third partition board (113) and a fourth partition board (114) are arranged between the first partition board (111) and the second partition board (112), the first partition board (111), the second partition board (112), the third partition board (113) and the fourth partition board (114) enclose a diversion cavity, a fifth partition board (115) and a sixth partition board (116) are arranged in the diversion cavity, and the fifth partition board (115) and the sixth partition board (116) are intersected and divide the diversion cavity into the first cavity (101), the second cavity (102), the third cavity (103) and the fourth cavity (104); The water return device comprises a fifth partition plate (115) or a sixth partition plate (116), wherein a first groove (117), a second groove (118), a third groove (119) and a fourth groove (120) are formed in the fifth partition plate (115) or the sixth partition plate (116), the fifth partition plate (115) or the sixth partition plate (116) comprises a first surface and a second surface which are oppositely arranged, the first groove (117) and the second groove (118) are formed in the first surface in a staggered mode, the third groove (119) and the fourth groove (120) are formed in the second surface in a staggered mode, the first groove (117), the second groove (118) and the third groove (119) in the first surface are formed in the first cavity (117), the fourth groove (118) and the third groove (119) in the second cavity (118) are formed in a staggered mode, a water inlet passage (121) communicated with the fourth groove (120) is formed in a position, close to the third groove (119), the first groove (117) is formed in the first cavity (117) in the second cavity (103), the second groove (118) is formed in the fourth cavity (104), and the fourth groove (118) is formed in the cavity (104).
  2. 2. The liquid cooling heat dissipating device according to claim 1, wherein the first flow guiding channel and the second flow guiding channel have the same structure, and the cooling liquid flows in the first flow guiding channel and the second flow guiding channel in opposite directions and exchanges heat through the baffle plate (210).
  3. 3. The liquid cooling heat radiating device according to claim 2, wherein an intermediate baffle (211), a water inlet baffle positioned at one side of the intermediate baffle (211), a water return baffle positioned at the other side of the intermediate baffle (211) and a connecting baffle (216) are arranged in the first cavity, the number of the water inlet baffles is even, and the number of the water return baffles is even; The connecting partition plate (216) is connected with the middle partition plate (211), the even-numbered water inlet partition plates and the even-numbered water return partition plates, the middle partition plate (211), the odd-numbered water inlet partition plates and the odd-numbered water return partition plates are all connected to one side inner wall of the first cavity, the first diversion inlet (206) is arranged between the middle partition plate (211) and the first water inlet partition plate, the first diversion outlet (207) is arranged between the middle partition plate (211) and the first water return partition plate, a channel is formed between the connecting partition plate (216) and the other side inner wall of the first diversion channel, and the water inlet partition plates and the water return partition plates are counted according to the sequence from being close to the middle partition plate (211) to being far away from the middle partition plate (211).
  4. 4. A liquid cooling heat sink according to claim 3 wherein the number of water inlet baffles is 2 and the number of water return baffles is 2, both the water inlet baffles and the water return baffles being mirror-image distributed with the middle baffle (211) as the center.
  5. 5. The liquid cooling heat sink according to claim 1, wherein a water inlet channel (122) is formed between the side of the first partition plate (111) away from the diversion chamber and the inner wall of the hollow chamber, and a water return channel (123) is formed between the side of the second partition plate (112) away from the diversion chamber and the inner wall of the hollow chamber.
  6. 6. The liquid cooling heat radiating device according to claim 1, wherein the first water inlets (107) are arranged in two and opposite directions, the second water inlets (110) are arranged in two and opposite directions, the first water return openings (108) are arranged in two and opposite directions, the second water return openings (109) are arranged in two and opposite directions, and the flow guiding components (200) are arranged in two and positioned on two sides of the four-way valve (100).
  7. 7. The liquid-cooled heat sink according to claim 1, wherein a heat insulating material is filled between the first partition (111) and the second partition (112) outside the diversion chamber.
  8. 8. An energy storage battery module comprising a plurality of energy storage batteries (300), wherein the plurality of energy storage batteries (300) are divided into at least two groups, and each group of energy storage batteries (300) is abutted against any one side of a flow guide assembly (200) in the liquid cooling heat dissipation device as claimed in any one of claims 1 to 7.

Description

Liquid cooling heat abstractor and have its energy storage battery module Technical Field The invention relates to the technical field of energy storage, in particular to a liquid cooling heat dissipation device and an energy storage battery module with the same. Background Along with the development of technology, in the energy storage industry, the large-scale energy storage technology has more advantages due to convenient use, energy conservation and environmental protection, so that the large-scale energy storage technology is increasingly used in various production and living scenes. At present, aiming at the large-sized energy storage battery, a liquid cooling plate is arranged at the bottom of the energy storage battery to realize heat dissipation of the large-sized energy storage battery, and the heat dissipation mode mainly has the following defects: 1. The liquid cooling plate is positioned at the bottom of the energy storage battery and needs to bear the weight of the energy storage battery, so that the thickness of the liquid cooling plate can be increased after the bearing requirement is met, the occupied internal space is larger, the energy density is reduced, and the heat dissipation effect is also reduced; 2. The bearing and space limitation of the large-sized energy storage battery are met, only one layer of runner is arranged in the liquid cooling plate, and a large-sized single-layer runner profile process is required to meet the requirements, so that the difficulty of process molding is increased; 3. Due to the adoption of the single-layer runner, the cooling liquid enters from the inlet and is discharged from the outlet, and the temperature of the cooling liquid is increased in the whole process, so that the temperature of a part close to the inlet is lower, and the temperature of a part close to the outlet is higher, so that the temperature of the energy storage battery is different, and the service life is influenced. Disclosure of Invention The invention aims to solve the technical problem of providing a liquid cooling heat dissipation device which does not affect space utilization and can improve heat dissipation effect and an energy storage battery with the liquid cooling heat dissipation device. The liquid cooling heat dissipation device comprises a four-way valve and a flow guide assembly connected to the four-way valve, wherein the four-way valve comprises a first chamber, a second chamber, a third chamber and a fourth chamber, a main water inlet is arranged on the first chamber, a main water outlet is arranged on the third chamber, the first chamber is communicated with the fourth chamber, the second chamber is communicated with the third chamber, a first water inlet is arranged on the first chamber, a first water return port is arranged on the second chamber, a second water inlet is arranged on the fourth chamber, a second water return port is arranged on the third chamber, the flow guide assembly comprises a first flow guide channel and a second flow guide channel, the first flow guide channel comprises a first flow guide inlet connected with the first water inlet and a first flow guide outlet communicated with the first water return port, and the second flow guide channel comprises a second flow guide inlet communicated with the second water inlet and a second flow guide outlet communicated with the second water return port. Further specifically, the flow guiding assembly comprises a cuboid shell, a baffle is arranged inside the shell, the inner part of the shell is divided into a first cavity and a second cavity by the baffle, the first flow guiding channel is arranged in the first cavity, and the second flow guiding channel is arranged in the second cavity. Further specifically, the first diversion channel and the second diversion channel have the same structure, and the cooling liquid flows in the first diversion channel and the second diversion channel in opposite directions and realizes heat exchange through the baffle plate. The first cavity is internally provided with an intermediate baffle, a water inlet baffle arranged on one side of the intermediate baffle, a water return baffle arranged on the other side of the intermediate baffle and connecting baffles, wherein the number of the water inlet baffles is even, and the number of the water return baffles is even; The connecting partition board is connected with the middle partition board, the even water inlet partition boards and the even water return partition boards, the middle partition board, the odd water inlet partition boards and the odd water return partition boards are all connected to the inner wall of one side of the first cavity, the first diversion inlet is arranged between the middle partition board and the first water inlet partition board, the first diversion outlet is arranged between the middle partition board and the first water return partition boards, a channel is formed between the connecting par