CN-224217547-U - Water-cooled lithium battery liquid cooler

Abstract

The utility model discloses a water-cooled lithium battery liquid cooling machine, wherein a compressor is respectively connected with a plate heat exchanger and a condenser, the condenser is connected with an external sea water pump, the plate heat exchanger is connected with an internal circulating water pump, a water inlet temperature probe is arranged at a water inlet of the plate heat exchanger, and an electronic expansion valve is arranged between the electronic expansion valve and the condenser. The utility model can continuously provide 25 ℃ chilled water for the battery equipment cooling unit, the chilled water enters the metal heat exchange plate, the outside of the chilled water contacts the battery pack to be cooled, and then the heat conduction is carried out, so that the battery is cooled. The liquid cooler for cooling the equipment does not need to provide very cold water, the temperature of a battery chip is not suitable to be higher than 80 ℃, and only 25 ℃ of water is needed to be provided for cooling the equipment, in addition, the 25 ℃ of water is provided for cooling to prevent the temperature from being too low, condensed water is generated outside a heat exchange plate, and the safety of the battery is ensured.

Inventors

• GU LIXIN

Assignees

• 上海舟立节能设备有限公司

Dates

Publication Date

20260508

Application Date

20250526

Claims (4)

1. 1. The water-cooled lithium battery liquid cooling machine is characterized by comprising a compressor (1), a plate heat exchanger (2), an internal circulating water pump (3), an electronic expansion valve (4) and a condenser (5), wherein the compressor (1) is respectively connected with the plate heat exchanger (2) and the condenser (5), the condenser (5) is connected with an external sea water pump (6), the plate heat exchanger (2) is connected with the internal circulating water pump (3), a water inlet of the plate heat exchanger (2) is provided with a water inlet temperature probe, and the electronic expansion valve (4) is arranged between the electronic expansion valve (4) and the condenser (5).
2. 2. The liquid cooling machine for water-cooled lithium battery according to claim 1, wherein the compressor (1) is a direct-current brushless variable-frequency compressor.
3. 3. The water-cooled lithium battery liquid cooling machine according to claim 1, wherein the exhaust port of the compressor (1) is provided with a temperature switch, the compressor (1) is further connected with a control main board in the control box (7), and the control main board is connected with a water inlet temperature probe.
4. 4. The water-cooled lithium battery liquid cooler according to claim 1, wherein the condenser (5) adopts a sleeve structure.

Description

Water-cooled lithium battery liquid cooler Technical Field The utility model relates to the technical field of ship engineering, in particular to a water-cooled lithium battery liquid cooler. Background At present, a plurality of new energy ships adopt lithium battery packs as the power supply of the whole ship, the batteries can release heat in the charging and discharging processes, a large amount of batteries are piled up in a battery compartment, the heat is greatly increased, and if the batteries are not cooled, the service life and the safety of the batteries can be influenced. The conventional battery compartment cooling is realized by adopting a ventilator to cool, namely, a large fan is used for blowing the battery pack to exchange heat, and the following defects are caused: 1. The fan can only exchange heat locally, the traditional fan has dead angles, and the cooling effect of the place which cannot be blown by wind is poor; 2. The ship generally runs on the sea surface, the blown sea wind has certain corrosiveness, a plurality of batteries are connected by copper pipes, and the long-term corrosiveness can have great influence on the service life of the batteries; Another conventional cooling method is air conditioning cooling, which also suffers from uneven cooling, and is a cold spot near the air conditioner and a hot spot far from the air conditioner. The air conditioner needs to cool down the temperature of the whole room, which is very energy-consuming, and the use safety of the battery is greatly affected by local supercooling and then condensed water generation during the use of the air conditioner. Whether ventilation cooling or air conditioning cooling, it is convective cooling, which is air-cooled. In order to solve the problems, the utility model designs a water-cooled lithium battery liquid cooler. Disclosure of utility model Aiming at the defects existing in the prior art, the utility model aims to provide a water-cooled lithium battery liquid cooler, which can continuously provide 25 ℃ chilled water for a battery device cooling unit, wherein the chilled water enters a metal heat exchange plate, contacts the battery pack to be cooled outside, conducts heat and further cools the battery. The liquid cooler for cooling the equipment does not need to provide very cold water, the temperature of a battery chip is not suitable to be higher than 80 ℃, and only 25 ℃ of water is needed to be provided for cooling the equipment, in addition, the 25 ℃ of water is provided for cooling to prevent the temperature from being too low, condensed water is generated outside a heat exchange plate, and the safety of the battery is ensured. The water-cooled lithium battery liquid cooler comprises a compressor, a plate heat exchanger, an internal circulating water pump, an electronic expansion valve and a condenser, wherein the compressor is respectively connected with the plate heat exchanger and the condenser, the condenser is connected with an external sea water pump, the plate heat exchanger is connected with the internal circulating water pump, a water inlet temperature probe is arranged at a water inlet of the plate heat exchanger, and the electronic expansion valve is arranged between the electronic expansion valve and the condenser. Preferably, the compressor adopts a direct current brushless variable frequency compressor, and an exhaust port of the compressor is provided with a temperature switch. The compressor is also connected with a control main board in the control box, and the control main board is connected with the water inlet temperature probe. The utility model has the beneficial effects that: 1. The cooling is uniform, and the problem of condensed water generated by local cooling is avoided; 2. the energy utilization rate is high, and the device is only used for equipment needing cooling. Through the double-circulation design of the refrigerant and the seawater, the intelligent temperature control technology is combined, the safety of the battery is ensured, and the energy utilization rate is obviously improved. The innovation point is to balance cooling efficiency and safety, and provide a solution with low cost and high reliability for lithium battery thermal management. Drawings The utility model is described in detail below with reference to the drawings and the detailed description; FIG. 1 is a schematic diagram of the structure of the present utility model; Fig. 2 is a schematic diagram of the present utility model. Detailed Description The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand. Referring to fig. 1-2, the specific embodiment adopts the following technical scheme that the water-cooled lithium battery liquid cooler comprises a compressor 1, a plate heat exchanger 2, an internal circ