Heating device of energy storage liquid cooling system

Abstract

The utility model provides a heating device of an energy storage liquid cooling system, which comprises a plastic shell and a spiral aluminum pipe heating assembly arranged in the plastic shell, the spiral aluminum pipe heating assembly comprises a stainless steel pipe and a spiral aluminum pipe attached to the outer wall of the stainless steel pipe, and the stainless steel pipe and the spiral aluminum pipe are welded and fixed together through aluminum solder. A heating wire is arranged in the spiral aluminum pipe, a temperature control module is arranged in the plastic shell, the temperature control module collects the heating temperature of the spiral aluminum pipe heating assembly and is electrically connected with the heating wire, the advantage that aluminum is high in heat transfer speed is utilized, the aluminum pipe and the stainless steel pipe are welded through aluminum solder, and the heat conversion efficiency is high; the water resistance can be effectively reduced by adopting the straight-through structure, and the problem that the water resistance of the energy storage liquid cooling heater is large is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating devices, in particular to a heating device for an energy storage liquid cooling system. Background Art

[0002] Renewable energy generation has the characteristics of large volatility and poor regulation ability. The power system's demand for power auxiliary services such as smooth output, peak load regulation and frequency regulation has increased significantly. As the proportion of renewable energy generation increases, the power energy structure will change significantly, and the demand for energy storage will be released faster. The energy stored in electrochemical energy storage can be used as emergency energy, or it can be used to store energy when the grid load is low, and output energy when the grid load is high, which is used to reduce peaks and fill valleys and reduce grid fluctuations. The efficiency of electrochemical energy storage decreases significantly in low temperature environments, because when charging at low temperatures, the kinetic conditions deteriorate, which not only leads to a decrease in battery capacity, but also metal lithium is precipitated on the negative electrode surface due to the decrease in the speed of graphite lithium insertion. These precipitated metal lithium will also directly affect the amount of electrical energy storage. Considering the outdoor application scenarios of electrochemical energy storage, it is difficult to start in low temperature environments. If only a small current is used to charge and wait for the temperature to rise, the reaction time will inevitably be greatly extended, resulting in limited application scenarios, and the initial charging of a large current will directly affect the service life of the battery, resulting in a decrease in economic efficiency. Therefore, it is necessary to heat the energy storage liquid cooling system. The existing device for heating the energy storage liquid cooling system is mainly in the form of ear plate immersion heating. Immersing the ear plate in the battery liquid will cause uneven heating and a short service life of the equipment. In addition, the external heating wire conducts heat to the ear plate, which will cause a lot of unnecessary heat waste and the heat conduction efficiency is not high. Utility Model Content

[0003] The utility model solves the problem of decreased efficiency of electrochemical energy storage in a low-temperature environment, and proposes a heating device for an energy storage liquid cooling system. By utilizing the advantage of aluminum's faster heat transfer, aluminum pipes and stainless steel pipes are welded with aluminum solder to achieve higher heat conversion efficiency. The straight-through structure can effectively reduce water resistance, solving the problem of large water resistance of the energy storage liquid cooling heater.

[0004] In order to achieve the above objectives, the following technical solutions are proposed:

[0005] A heating device for an energy storage liquid cooling system comprises a plastic shell and a spiral aluminum tube heating assembly arranged inside the plastic shell, wherein the spiral aluminum tube heating assembly comprises a stainless steel tube and a spiral aluminum tube attached to the outer wall of the stainless steel tube, wherein the stainless steel tube and the spiral aluminum tube are welded and fixed together by aluminum solder, a heating wire is arranged inside the spiral aluminum tube, and a temperature control module is arranged inside the plastic shell, wherein the temperature control module collects the heating temperature of the spiral aluminum tube heating assembly and is electrically connected to the heating wire.

[0006] The utility model discloses a heating device for an energy storage liquid cooling system, comprising a plastic shell, a spiral aluminum tube heating assembly and a temperature control module. The spiral aluminum tube heating assembly comprises a stainless steel tube, a spiral aluminum tube, aluminum solder and a heating wire. The spiral aluminum tube heating assembly is arranged inside the plastic shell, the spiral aluminum tube is attached to the outer wall of the stainless steel tube, the heating wire is arranged inside the spiral aluminum tube, and the aluminum solder is used to fix the stainless steel tube and the spiral aluminum tube. The temperature control module is arranged inside the plastic shell to collect the heating temperature of the spiral aluminum tube heating assembly, and the temperature control module is also electrically connected to the heating wire to control the heating temperature. The utility model uses the advantages of a spiral structure and a higher power density of an aluminum heating tube. Under the same power, the length of the heater is shorter; a structure in which the heating tube is in non-direct contact with the heating medium is used to effectively improve the service life of the heater; the advantage of aluminum's faster heat transfer is utilized, and aluminum solder is used to weld the aluminum tube and the stainless steel tube, so that the heat conversion efficiency is higher; the straight-through structure can effectively reduce the water resistance and solve the problem of large water resistance of the energy storage liquid cooling heater.

[0007] Preferably, a fuse is electrically connected between the temperature control module and the heating wire.

[0008] The utility model has a fuse electrically connected between the heating wire and the temperature control module. The utility model connects the temperature control module and the fuse in series into the main circuit. When the spiral aluminum tube heating component is in abnormal working condition, the temperature control module and the fuse can directly cut off the main circuit, which is safer; using a double temperature control structure, when the heater is in abnormal working condition, double-layer temperature control protection is safer and more reliable.

[0009] Preferably, a temperature control thermal conductive sheet is attached to the stainless steel tube, and the temperature control thermal conductive sheet is partially attached to the spiral aluminum tube. The temperature control thermal conductive sheet, the stainless steel tube and the spiral aluminum tube are all fixed by welding with aluminum solder. The temperature control module is fixed on the temperature control thermal conductive sheet and collects the heating temperature of the spiral aluminum tube heating assembly through the temperature control thermal conductive sheet.

[0010] The utility model is also provided with a temperature control heat conducting sheet, the main body of which is attached to the stainless steel tube and part of which is attached to the spiral aluminum tube. The temperature control heat conducting sheet is respectively fixed to the stainless steel tube and the spiral aluminum tube by aluminum solder, and the temperature control module is attached to the temperature control heat conducting sheet, and the temperature control heat conducting sheet is used to collect the heating temperature of the spiral aluminum tube heating assembly. The temperature control heat conducting sheet is made of aluminum plate, and aluminum plate + aluminum solder is used between the temperature control module and the stainless steel tube. When the heater is in abnormal working condition, the aluminum plate transfers heat faster and the thermostat acts faster.

[0011] Preferably, both ends of the stainless steel pipe are connected with quick connectors.

[0012] Both ends of the stainless steel pipe of the utility model are connected with quick connectors for quick connection with an external energy storage liquid cooling system.

[0013] Preferably, the plastic shell and the stainless steel tube are fixed by sleeve connection via a heat shrink tubing, and a silicone accumulation layer is provided at the contact position between the plastic shell and the stainless steel tube.

[0014] The stainless steel tube and the plastic shell of the utility model are fixed by sleeve connection through a heat shrinkable sleeve, and a silica gel accumulation layer is provided at the contact position between the stainless steel tube and the plastic shell.

[0015] Preferably, a heat preservation plate wrapping the spiral aluminum tube heating assembly is provided in the plastic shell.

[0016] The utility model provides a heat preservation plate between the plastic shell and the spiral aluminum tube heating component. The heat preservation plate wraps the spiral aluminum tube heating component. The heat preservation plate is an aluminum silicate plate heat preservation plate.

[0017] Preferably, the plastic housing is provided with a waterproof connector, which connects the temperature control module to an external cable.

[0018] The plastic shell of the utility model is provided with a waterproof joint for connecting the temperature control module to an external cable, and the waterproof joint prevents external dust and rain from entering the interior of the spiral aluminum tube heating component.

[0019] Preferably, the cross-section of the single spiral aluminum tube is an isosceles trapezoid.

[0020] The cross section of the single spiral aluminum tube of the utility model is an isosceles trapezoid, and the long bottom side is attached to the stainless steel tube, which is beneficial to increase the heat transfer area to the stainless steel tube, reduce the area of ​​unnecessary heat transfer surface, and improve heat utilization efficiency.

[0021] Preferably, the plastic shell includes a first plastic shell and a second plastic shell which are separately arranged, and the first plastic shell and the second plastic shell are buckled with each other and fixed together by bolts.

[0022] The plastic shell of the utility model comprises a first plastic shell and a second plastic shell, the first plastic shell and the second plastic shell are separately arranged, the second plastic shell and the first plastic shell are buckled with each other and fixed together by bolts. The purpose of the separate arrangement of the plastic shell is to facilitate the assembly of the whole device.

[0023] Preferably, a sealing strip is provided on the joining surface of the first plastic shell and the second plastic shell, and a layer of silicone is provided on the outer side surface of the connection between the first plastic shell and the second plastic shell.

[0024] The second plastic shell and the first plastic shell of the utility model are provided with a sealing strip on the joint surface, and a layer of silica gel is provided on the outer surface of the connection between the second plastic shell and the first plastic shell. The utility model adopts a sealing strip and a gluing method for sealing, and has a high waterproof level.

[0025] The beneficial effects of the utility model are as follows: the electric heating tube of the utility model uses the advantages of a spiral structure and a higher power density of the aluminum heating tube, so that under the same power, the length of the heater is shorter; a structure in which the heating tube is in non-direct contact with the heating medium is used, which effectively improves the service life of the heater; the advantage of aluminum's faster heat transfer is utilized, and aluminum solder is used to weld the aluminum tube and the stainless steel tube, so that the heat conversion efficiency is higher; the straight-through structure can effectively reduce the water resistance, solving the problem of large water resistance of the energy storage liquid cooling heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a partial cross-sectional view of the utility model.

[0027] Figure 2 It is a structural diagram of a spiral aluminum tube heating component of the utility model.

[0028] Figure 3 It is a schematic diagram of the overall structure of the utility model.

[0029] Figure 4 It is a sectional view of the overall structure of the utility model.

[0030] Among them: 1. Plastic shell; 2. Spiral aluminum tube heating assembly; 3. Temperature control module; 4. Temperature control thermal conductive sheet; 5. Quick connector; 6. Insulation board; 7. Heat shrink tubing; 8. Waterproof connector; 9. Cable; 21. Stainless steel tube; 22. Spiral aluminum tube; 23. Aluminum solder; 24. Heating wire. DETAILED DESCRIPTION

[0031] Embodiment 1:

[0032] This embodiment provides a heating device for an energy storage liquid cooling system. Figure 1 , Figure 2 and Figure 4, including a plastic shell 1, a spiral aluminum tube heating component 2 and a temperature control module 3. The spiral aluminum tube heating component 2 includes a stainless steel tube 21, a spiral aluminum tube 22, an aluminum solder 23 and a heating wire 24. The spiral aluminum tube heating component 2 is arranged inside the plastic shell 1, the spiral aluminum tube 22 is attached to the outer wall of the stainless steel tube 21, the heating wire 24 is arranged inside the spiral aluminum tube 22, and the aluminum solder 23 is used to fix the stainless steel tube 21 and the spiral aluminum tube 22. The temperature control module 3 is arranged in the plastic shell 1 to collect the heating temperature of the spiral aluminum tube heating component 2, and the temperature control module 3 is also electrically connected to the heating wire 24 to control the heating temperature. The utility model is electrically connected with a fuse between the heating wire 24 and the temperature control module 3. The utility model connects the temperature control module 3 and the fuse in series into the main circuit. When the spiral aluminum tube heating component 2 is in abnormal working condition, the temperature control module 3 and the fuse can directly cut off the main circuit, which is safer; using a double temperature control structure, when the heater is in abnormal working condition, double-layer temperature control protection is safer and more reliable. Both ends of the stainless steel tube 21 of the utility model are connected with quick connectors 5 for quick connection with an external energy storage liquid cooling system. The stainless steel tube 21 of the utility model and the plastic shell 1 are fixed by a heat shrink sleeve 7, and a silica gel accumulation layer is provided at the contact position between the stainless steel tube 21 and the plastic shell 1. The utility model is provided with an insulation board 6 between the plastic shell 1 and the spiral aluminum tube heating component 2, and the insulation board 6 wraps the spiral aluminum tube heating component 2, and the insulation board 6 is an aluminum silicate insulation board. Reference Figure 3 The plastic housing 1 of the utility model is provided with a waterproof joint 8 for connecting the temperature control module 3 to an external cable 9, and the waterproof joint 8 prevents external dust and rain from entering the spiral aluminum tube heating component 2. The cross section of the spiral aluminum tube 22 of the utility model is an isosceles trapezoid, and the long bottom side is attached to the stainless steel tube 21, which is conducive to increasing the heat transfer area of ​​the stainless steel tube 21, reducing the area of ​​unnecessary heat transfer surface, and improving heat utilization efficiency.

[0033] The working principle of the utility model is as follows:

[0034] 1. Use quick connector 5 to quickly connect to the external energy storage liquid cooling system;

[0035] 2. The coolant of the external energy storage liquid cooling system flows into the stainless steel pipe 21;

[0036] 3. After being heated by the heating wire in the spiral aluminum tube 22 outside the stainless steel tube 21, the temperature of the coolant in the external energy storage liquid cooling system is increased.

[0037] 4. The temperature control module 3 collects the temperature of the stainless steel tube 21 and the spiral aluminum tube 22 in real time to regulate the heating process. The fuse serves as a redundant protection device to cut off the working current of the heating wire when the temperature is too high.

[0038] The electric heating tube of the utility model takes advantage of the spiral structure and the higher power density of the aluminum heating tube. Under the same power, the length of the heater is shorter; the structure in which the heating tube is in non-direct contact with the heating medium is used to effectively improve the service life of the heater; the advantage of aluminum's faster heat transfer is utilized, and aluminum solder is used to weld the aluminum tube and the stainless steel tube to achieve a higher heat conversion efficiency; the straight-through structure can effectively reduce water resistance, solving the problem of large water resistance of the energy storage liquid cooling heater.

[0039] Embodiment 2:

[0040] This embodiment improves the structure of the temperature control module 3 on the basis of the embodiment 1, and proposes a heating device for the energy storage liquid cooling system. Figure 1 , Figure 2 and Figure 4 , including a plastic shell 1, a spiral aluminum tube heating component 2 and a temperature control module 3. The spiral aluminum tube heating component 2 includes a stainless steel tube 21, a spiral aluminum tube 22, an aluminum solder 23 and a heating wire 24. The spiral aluminum tube heating component 2 is arranged inside the plastic shell 1, the spiral aluminum tube 22 is attached to the outer wall of the stainless steel tube 21, the heating wire 24 is arranged inside the spiral aluminum tube 22, and the aluminum solder 23 is used to fix the stainless steel tube 21 and the spiral aluminum tube 22. The temperature control module 3 is arranged in the plastic shell 1 to collect the heating temperature of the spiral aluminum tube heating component 2, and the temperature control module 3 is also electrically connected to the heating wire 24 to control the heating temperature. The utility model is electrically connected with a fuse between the heating wire 24 and the temperature control module 3. The utility model connects the temperature control module 3 and the fuse in series into the main circuit. When the spiral aluminum tube heating component 2 is in abnormal working condition, the temperature control module 3 and the fuse can directly cut off the main circuit, which is safer; using a double temperature control structure, when the heater is in abnormal working condition, double-layer temperature control protection is safer and more reliable.

[0041] refer to Figure 3 The utility model is also provided with a temperature control heat conducting sheet 4, the main body of which is attached to the stainless steel tube 21 and part of which is attached to the spiral aluminum tube 22. The temperature control heat conducting sheet 4 is respectively welded and fixed to the stainless steel tube 21 and the spiral aluminum tube 22 by aluminum solder 23, and the temperature control module 3 is attached and fixed to the temperature control heat conducting sheet 4, and the heating temperature of the spiral aluminum tube heating component 2 is collected by the temperature control heat conducting sheet 4. The temperature control heat conducting sheet 4 is made of aluminum plate, and aluminum plate + aluminum solder is used between the temperature control module 3 and the stainless steel tube 21. When the heater is in abnormal working condition, the aluminum plate transfers heat faster and the thermostat acts faster.

[0042] Both ends of the stainless steel tube 21 of the utility model are connected with quick connectors 5 for quick connection with an external energy storage liquid cooling system. The stainless steel tube 21 of the utility model and the plastic shell 1 are fixed by a heat shrink sleeve 7, and a silica gel accumulation layer is provided at the contact position between the stainless steel tube 21 and the plastic shell 1. The utility model is provided with an insulation board 6 between the plastic shell 1 and the spiral aluminum tube heating component 2, and the insulation board 6 wraps the spiral aluminum tube heating component 2, and the insulation board 6 is an aluminum silicate insulation board. Reference Figure 3 The plastic housing 1 of the utility model is provided with a waterproof joint 8 for connecting the temperature control module 3 to an external cable 9, and the waterproof joint 8 prevents external dust and rain from entering the spiral aluminum tube heating component 2. The cross section of the spiral aluminum tube 22 of the utility model is an isosceles trapezoid, and the long bottom side is attached to the stainless steel tube 21, which is conducive to increasing the heat transfer area of ​​the stainless steel tube 21, reducing the area of ​​unnecessary heat transfer surface, and improving heat utilization efficiency.

[0043] The working principle of the utility model is as follows:

[0044] 1. Use quick connector 5 to quickly connect to the external energy storage liquid cooling system;

[0045] 2. The coolant of the external energy storage liquid cooling system flows into the stainless steel pipe 21;

[0046] 3. After being heated by the heating wire in the spiral aluminum tube 22 outside the stainless steel tube 21, the temperature of the coolant in the external energy storage liquid cooling system is increased.

[0047] 4. The temperature control module 3 collects the temperature of the stainless steel tube 21 and the spiral aluminum tube 22 in real time through the temperature control heat conducting sheet 4 to regulate the heating process. The fuse serves as a redundant protection device to cut off the working current of the heating wire when the temperature is too high.

[0048] The electric heating tube of the utility model takes advantage of the spiral structure and the higher power density of the aluminum heating tube. Under the same power, the length of the heater is shorter; the structure in which the heating tube is in non-direct contact with the heating medium is used to effectively improve the service life of the heater; the advantage of aluminum's faster heat transfer is utilized, and aluminum solder is used to weld the aluminum tube and the stainless steel tube to achieve a higher heat conversion efficiency; the straight-through structure can effectively reduce water resistance, solving the problem of large water resistance of the energy storage liquid cooling heater.

[0049] Embodiment 3:

[0050] This embodiment improves the structure of the plastic housing 1 on the basis of Embodiment 1 and Embodiment 2, and proposes a heating device for an energy storage liquid cooling system. Figure 1 , Figure 2 and Figure 4, including a plastic shell 1, a spiral aluminum tube heating component 2 and a temperature control module 3. The spiral aluminum tube heating component 2 includes a stainless steel tube 21, a spiral aluminum tube 22, an aluminum solder 23 and a heating wire 24. The spiral aluminum tube heating component 2 is arranged inside the plastic shell 1, the spiral aluminum tube 22 is attached to the outer wall of the stainless steel tube 21, the heating wire 24 is arranged inside the spiral aluminum tube 22, and the aluminum solder 23 is used to fix the stainless steel tube 21 and the spiral aluminum tube 22. The temperature control module 3 is arranged in the plastic shell 1 to collect the heating temperature of the spiral aluminum tube heating component 2, and the temperature control module 3 is also electrically connected to the heating wire 24 to control the heating temperature. The utility model is electrically connected with a fuse between the heating wire 24 and the temperature control module 3. The utility model connects the temperature control module 3 and the fuse in series into the main circuit. When the spiral aluminum tube heating component 2 is in abnormal working condition, the temperature control module 3 and the fuse can directly cut off the main circuit, which is safer; using a double temperature control structure, when the heater is in abnormal working condition, double-layer temperature control protection is safer and more reliable.

[0051] refer to Figure 3 The utility model is also provided with a temperature control heat conducting sheet 4, the main body of which is attached to the stainless steel tube 21 and part of which is attached to the spiral aluminum tube 22. The temperature control heat conducting sheet 4 is respectively welded and fixed to the stainless steel tube 21 and the spiral aluminum tube 22 by aluminum solder 23, and the temperature control module 3 is attached and fixed to the temperature control heat conducting sheet 4, and the heating temperature of the spiral aluminum tube heating component 2 is collected by the temperature control heat conducting sheet 4. The temperature control heat conducting sheet 4 is made of aluminum plate, and aluminum plate + aluminum solder is used between the temperature control module 3 and the stainless steel tube 21. When the heater is in abnormal working condition, the aluminum plate transfers heat faster and the thermostat acts faster.

[0052] Both ends of the stainless steel tube 21 of the utility model are connected with quick connectors 5 for quick connection with an external energy storage liquid cooling system. The stainless steel tube 21 of the utility model and the plastic shell 1 are fixed by a heat shrink sleeve 7, and a silica gel accumulation layer is provided at the contact position between the stainless steel tube 21 and the plastic shell 1. The utility model is provided with an insulation board 6 between the plastic shell 1 and the spiral aluminum tube heating component 2, and the insulation board 6 wraps the spiral aluminum tube heating component 2, and the insulation board 6 is an aluminum silicate insulation board. Reference Figure 3 The plastic housing 1 of the utility model is provided with a waterproof joint 8 for connecting the temperature control module 3 to an external cable 9, and the waterproof joint 8 prevents external dust and rain from entering the spiral aluminum tube heating component 2. The cross section of the spiral aluminum tube 22 of the utility model is an isosceles trapezoid, and the long bottom side is attached to the stainless steel tube 21, which is conducive to increasing the heat transfer area of ​​the stainless steel tube 21, reducing the area of ​​unnecessary heat transfer surface, and improving heat utilization efficiency.

[0053] The plastic shell 1 of the utility model comprises a first plastic shell and a second plastic shell, the first plastic shell and the second plastic shell are separately arranged, the second plastic shell and the first plastic shell are buckled with each other and fixed together by bolts. The purpose of the separate arrangement of the plastic shell 1 is to facilitate the assembly of the whole device.

[0054] The second plastic shell and the first plastic shell of the utility model are provided with a sealing strip on the joint surface, and a layer of silica gel is provided on the outer surface of the connection between the second plastic shell and the first plastic shell. The utility model adopts a sealing strip and a gluing method for sealing, and has a high waterproof level.

[0055] The working principle of the utility model is as follows:

[0056] 1. Use quick connector 5 to quickly connect to the external energy storage liquid cooling system;

[0057] 2. The coolant of the external energy storage liquid cooling system flows into the stainless steel pipe 21;

[0058] 3. After being heated by the heating wire in the spiral aluminum tube 22 outside the stainless steel tube 21, the temperature of the coolant in the external energy storage liquid cooling system is increased.

[0059] 4. The temperature control module 3 collects the temperature of the stainless steel tube 21 and the spiral aluminum tube 22 in real time through the temperature control heat conducting sheet 4 to regulate the heating process. The fuse serves as a redundant protection device to cut off the working current of the heating wire when the temperature is too high.

[0060] The electric heating tube of the utility model takes advantage of the spiral structure and the higher power density of the aluminum heating tube. Under the same power, the length of the heater is shorter; the structure in which the heating tube is in non-direct contact with the heating medium is used to effectively improve the service life of the heater; the advantage of aluminum's faster heat transfer is utilized, and aluminum solder is used to weld the aluminum tube and the stainless steel tube to achieve a higher heat conversion efficiency; the straight-through structure can effectively reduce water resistance, solving the problem of large water resistance of the energy storage liquid cooling heater.

Claims

1. A heating device for an energy storage liquid cooling system, characterized in that: The invention comprises a plastic shell (1) and a spiral aluminum tube heating component (2) arranged inside the plastic shell (1), wherein the spiral aluminum tube heating component (2) comprises a stainless steel tube (21) and a spiral aluminum tube (22) attached to the outer wall of the stainless steel tube (21), wherein the stainless steel tube (21) and the spiral aluminum tube (22) are welded and fixed together by aluminum solder (23), a heating wire (24) is arranged inside the spiral aluminum tube (22), and a temperature control module (3) is arranged inside the plastic shell (1), wherein the temperature control module (3) collects the heating temperature of the spiral aluminum tube heating component (2) and is electrically connected to the heating wire (24).

2. The energy storage liquid cooling system heating device according to claim 1 is characterized in that: A fuse is electrically connected between the temperature control module (3) and the heating wire (24).

3. The energy storage liquid cooling system heating device according to claim 1 is characterized in that: A temperature control heat conducting sheet (4) is attached to the stainless steel tube (21); the temperature control heat conducting sheet (4) is partially attached to the spiral aluminum tube (22); the temperature control heat conducting sheet (4) and the stainless steel tube (21) and the spiral aluminum tube (22) are all welded and fixed by aluminum solder (23); the temperature control module (3) is fixed on the temperature control heat conducting sheet (4) and collects the heating temperature of the spiral aluminum tube heating assembly (2) through the temperature control heat conducting sheet (4).

4. The energy storage liquid cooling system heating device according to claim 1 is characterized in that: Both ends of the stainless steel pipe (21) are connected with quick connectors (5).

5. The energy storage liquid cooling system heating device according to claim 1, characterized in that: The plastic shell (1) and the stainless steel tube (21) are sleeved and fixed by a heat shrinkable sleeve (7), and a silica gel accumulation layer is provided at the contact position between the plastic shell (1) and the stainless steel tube (21).

6. The energy storage liquid cooling system heating device according to claim 1, characterized in that: A heat preservation plate (6) is provided inside the plastic shell (1) and wraps the spiral aluminum tube heating component (2).

7. The energy storage liquid cooling system heating device according to claim 1 is characterized in that: The plastic housing (1) is provided with a waterproof connector (8), and the waterproof connector (8) connects the temperature control module (3) to an external cable (9).

8. The energy storage liquid cooling system heating device according to claim 1 is characterized in that: The cross section of a single spiral aluminum tube (22) is an isosceles trapezoid.

9. A heating device for an energy storage liquid cooling system according to any one of claims 1 to 8, characterized in that: The plastic shell (1) comprises a first plastic shell and a second plastic shell which are arranged separately, and the first plastic shell and the second plastic shell are buckled with each other and fixed together by bolts.

10. The energy storage liquid cooling system heating device according to claim 9, characterized in that: A sealing strip is provided on the bonding surface of the first plastic shell and the second plastic shell, and a layer of silicone is provided on the outer side surface of the connection between the first plastic shell and the second plastic shell.

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