Air-cooled liquid thermal storage battery heat preservation box

Abstract

The utility model discloses an air-cooled liquid thermal storage battery heat preservation box, and belongs to the technical field of automobile battery heating. An air-cooled liquid thermal storage battery heat preservation box comprises a heat preservation box body and a battery box inner shell, the heat preservation box body is made of heat preservation and non-combustible materials, the battery box inner shell is fixedly installed in the heat preservation box body through bolts, a fixing pressing strip is detachably connected to the battery box inner shell, and a binding post is fixedly installed on the heat preservation box body. A water inlet pipe and a water outlet pipe are fixedly installed on the heat preservation box body, the water inlet pipe is communicated with a water outlet of an automobile engine cooler, and the water outlet pipe is communicated with a water inlet of the automobile engine cooler. A first heating coil and a second heating coil are fixedly installed in the heat preservation box body, and the length of the second heating coil is larger than that of the first heating coil. By arranging the first heating coil pipe and the second heating coil pipe, the flowing path of the fluid in the heat preservation box body can be changed, and the utilization efficiency of the heat preservation box body on the waste heat of the automobile engine is improved or reduced.

Description

Technical Field

[0001] The present application relates to the technical field of automobile battery heating, and more specifically, to an air-cooled liquid-heated battery insulation box. Background Art

[0002] Currently, automotive energy storage products on the market consist of a battery pack, battery management system, battery box, and electric heating system. Battery packs primarily utilize batteries, but both charging and discharging batteries have temperature requirements. When the temperature drops below 0°C, charging the battery can cause irreversible damage to the internal structure, shortening the battery pack's lifespan or even damaging it directly. Therefore, the battery pack must be heated in cold weather.

[0003] After searching, the existing patent document with publication number CN114552071A provides a waste heat battery heating system. The system uses the heat generated by the generator to heat water and introduces the warm water into the battery heater. The warm water is used to increase the temperature of the heater, thereby preheating the battery. After use, the warm water is dissipated through the generator radiator and re-introduced into the generator cooler. In this way, it is recycled, saving energy while the viscosity of the electrolyte can meet the vehicle's power needs.

[0004] When the above device utilizes the residual heat of the vehicle, it cannot adjust the utilization efficiency of the residual heat of the vehicle according to the ambient temperature, which increases the difficulty of controlling the temperature inside the battery box. In view of this, we propose an air-cooled liquid thermal storage battery insulation box. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The purpose of this application is to provide an air-cooled liquid thermal storage battery insulation box to solve the problems raised in the above background technology.

[0007] 2. Technical solution

[0008] This application is achieved through the following technical solutions:

[0009] An air-cooled liquid thermal storage battery insulation box, comprising an insulation box body and a battery box inner shell, wherein the battery box inner shell is fixedly mounted inside the insulation box body, and a water inlet pipe and a water outlet pipe are fixedly mounted on the insulation box body, wherein the water inlet pipe and the water outlet pipe are connected to a car engine cooler;

[0010] A first heating coil and a second heating coil are fixedly installed inside the insulation box, a three-way valve is installed on the water inlet pipe, the water inlet ends of the first heating coil and the second heating coil are installed on the water inlet pipe through the three-way valve, and the water outlet ends of the first heating coil and the second heating coil are connected to the water outlet pipe.

[0011] As an optional solution to the technical solution of this application document, a solenoid valve is installed on the water outlet pipe.

[0012] As an optional solution of the technical solution of this application document, the length of the second heating coil is greater than the length of the first heating coil.

[0013] As an optional solution to the technical solution of this application document, an air inlet and an air outlet are provided on the heat preservation box body, a rainproof baffle is fixedly installed on the outside of the air inlet, and a cooling fan is fixedly installed on the inside of the air outlet.

[0014] As an optional solution to the technical solution of this application document, shutters are rotatably installed in the air inlet and the air outlet.

[0015] As an optional solution of the technical solution of this application document, the water inlet pipe is connected to the water outlet of the automobile engine cooler, and the water outlet pipe is connected to the water inlet of the automobile engine cooler.

[0016] As an optional solution to the technical solution of this application document, the inner shell of the battery box is fixedly installed in the insulation box by bolts, the inner shell of the battery box is detachably connected to a fixed pressure strip, and the insulation box is fixedly installed with a terminal.

[0017] As an optional solution to the technical solution of this application document, a support block is fixedly installed on the bottom of the inner shell of the battery box, and an avoidance groove is opened at the lower part of the support block.

[0018] As an optional solution to the technical solution of this application document, flame-retardant insulation material is filled between the insulation box and the inner shell of the battery box.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. By setting a first heating coil and a second heating coil, the present application can change the flow path of the fluid in the insulation box, increase or decrease the efficiency of the insulation box in utilizing the waste heat of the automobile engine, increase the control range of the temperature in the insulation box, and reduce the difficulty of controlling the temperature in the insulation box.

[0022] 2. This application isolates the heating coil from the battery pack by providing an insulation box and an inner shell of the battery box, thereby preventing the battery pack from being damaged due to leakage of the heating coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an air-cooled liquid thermal storage battery insulation box;

[0024] Figure 2It is a schematic diagram of the overall structure of an air-cooled liquid thermal storage battery insulation box;

[0025] Figure 3 It is a schematic diagram of the heating coil of an air-cooled liquid thermal storage battery insulation box;

[0026] In the figure: 1. Insulation box; 101. Water inlet pipe; 102. Water outlet pipe; 103. Rain baffle; 104. Cooling fan; 105. Terminal; 2. Battery box inner shell; 201. Fixed pressure strip; 202. Support block; 203. Avoidance groove; 3. First heating coil; 4. Second heating coil; 5. Three-way valve; 6. Solenoid valve. DETAILED DESCRIPTION

[0027] The technical solution of this application will be clearly and completely described below with reference to the accompanying drawings.

[0028] See also Figures 1 to 3 The present application provides an air-cooled liquid thermal battery insulation box, comprising an insulation box body 1 and a battery box inner shell 2. The insulation box body 1 is made of an insulating and non-combustible material. The insulation box body 1 and the battery box inner shell 2 are filled with a flame-retardant insulation material. The flame-retardant insulation material can be pasted on the inner side of the insulation box body 1 or on the outer side of the battery box inner shell 2; the battery box inner shell 2 is fixedly installed in the insulation box body 1 by bolts, and a fixed pressure strip 201 is detachably connected to the battery box inner shell 2, and a terminal 105 is fixedly installed on the insulation box body 1.

[0029] A water inlet pipe 101 and a water outlet pipe 102 are fixedly installed on the insulation box body 1, the water inlet pipe 101 is connected to the water outlet of the automobile engine cooler, and the water outlet pipe 102 is connected to the water inlet of the automobile engine cooler; a first heating coil 3 and a second heating coil 4 are fixedly installed inside the insulation box body 1, the length of the second heating coil 4 is greater than the length of the first heating coil 3, a three-way valve 5 is installed on the water inlet pipe 101, the water inlet ends of the first heating coil 3 and the second heating coil 4 are installed on the water inlet pipe 101 through the three-way valve 5, and the water outlet ends of the first heating coil 3 and the second heating coil 4 are connected to the water outlet pipe 102.

[0030] By controlling the three-way valve 5 on the water inlet pipe 101, the hot water discharged from the automobile engine cooler can be selectively passed into the first heating coil 3 or the second heating coil 4; when the temperature is low, the hot water discharged from the automobile engine cooler can be passed into the second heating coil 4, thereby increasing the utilization efficiency of the engine waste heat; when the temperature is high, the hot water discharged from the automobile engine cooler can be passed into the first heating coil 3, thereby reducing the utilization efficiency of the engine waste heat, thereby increasing the control range of the temperature in the insulation box 1, and reducing the difficulty of controlling the temperature in the insulation box 1.

[0031] like Figure 3As shown, a solenoid valve 6 is installed on the water outlet pipe 102, which can control the start and stop of the fluid in the first heating coil 3 and the second heating coil 4, and control the temperature in the battery box within a set range.

[0032] like Figure 2 As shown, the heat preservation box 1 is provided with an air inlet and an air outlet. A rain shield 103 is fixedly mounted on the outside of the air inlet, and a cooling fan 104 is fixedly mounted on the inside of the air outlet. Rotating louvers are installed in both the air inlet and the air outlet. When the temperature inside the heat preservation box 1 is too high, the cooling fan 104 automatically starts to dissipate the heat inside the heat preservation box 1 to the outside, thereby maintaining a stable temperature inside the heat preservation box 1.

[0033] Furthermore, a support block 202 is fixedly mounted at the bottom of the battery box inner shell 2. This supports the battery box inner shell 2 upward, preventing the vehicle from vibrating during driving and causing deformation of the battery box inner shell 2. A relief groove 203 is provided at the bottom of the support block 202 to secure the position of the first heating coil 3 and the second heating coil 4. This prevents water from entering the battery pack and causing damage if the first heating coil 3 or the second heating coil 4 leaks.

Claims

1. An air-cooled liquid thermal storage battery insulation box, characterized in that: The invention comprises a heat preservation box (1) and a battery box inner shell (2), wherein the battery box inner shell (2) is fixedly mounted inside the heat preservation box (1), and a water inlet pipe (101) and a water outlet pipe (102) are fixedly mounted on the heat preservation box (1), and the water inlet pipe (101) and the water outlet pipe (102) are in communication with a car engine cooler; A first heating coil (3) and a second heating coil (4) are fixedly installed inside the heat preservation box (1); a three-way valve (5) is installed on the water inlet pipe (101); the water inlet ends of the first heating coil (3) and the second heating coil (4) are both installed on the water inlet pipe (101) through the three-way valve (5); and the water outlet ends of the first heating coil (3) and the second heating coil (4) are both connected to the water outlet pipe (102).

2. The air-cooled liquid thermal storage battery insulation box according to claim 1, characterized in that: A solenoid valve (6) is installed on the water outlet pipe (102).

3. The air-cooled liquid thermal storage battery insulation box according to claim 1, characterized in that: The length of the second heating coil (4) is greater than the length of the first heating coil (3).

4. The air-cooled liquid thermal storage battery insulation box according to claim 1, characterized in that: An air inlet and an air outlet are provided on the heat-insulating box body (1); a rainproof baffle (103) is fixedly installed on the outside of the air inlet, and a cooling fan (104) is fixedly installed on the inside of the air outlet.

5. The air-cooled liquid thermal storage battery insulation box according to claim 4, characterized in that: Shutters are rotatably installed in the air inlet and the air outlet.

6. The air-cooled liquid thermal storage battery insulation box according to claim 1, characterized in that: The water inlet pipe (101) is communicated with the water outlet of the automobile engine cooler, and the water outlet pipe (102) is communicated with the water inlet of the automobile engine cooler.

7. The air-cooled liquid thermal storage battery insulation box according to claim 1, characterized in that: The battery box inner shell (2) is fixedly mounted in the heat-insulating box body (1) by means of bolts; a fixing pressure strip (201) is detachably connected to the battery box inner shell (2); and a terminal post (105) is fixedly mounted on the heat-insulating box body (1).

8. The air-cooled liquid thermal storage battery insulation box according to claim 1, characterized in that: A support block (202) is fixedly mounted on the bottom of the battery box inner shell (2), and a relief groove (203) is provided at the lower portion of the support block (202).

9. The air-cooled liquid thermal storage battery insulation box according to claim 1, characterized in that: The space between the heat-insulating box body (1) and the battery box inner shell (2) is filled with flame-retardant heat-insulating material.

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