Temperature adjusting device applied to vehicle starting power supply

Abstract

The utility model discloses a temperature adjusting device applied to a vehicle starting power supply, which comprises a lithium battery module positioned in the device; the battery pack thermal insulation layer is made of a polyurethane material and wraps the lithium battery module; the inner radiator is located on the inner side of the battery pack heat preservation layer and exchanges heat with the lithium battery pack in a direct contact mode; the cooling fan is connected with the inner radiator; the semiconductor chilling plate adopts an NP type semiconductor and is embedded into one side of the battery pack heat preservation layer; the semiconductor chilling plate is wrapped with the heat conduction layer; and the outer radiator is positioned on the outer side of the battery pack heat preservation layer and performs heat exchange through an air cooling or natural convection heat dissipation environment. The temperature adjusting device applied to the vehicle starting power source is simple in structure, low in cost, low in risk and capable of efficiently adjusting the temperature of the starting power source when a vehicle is started.

Description

Technical Field

[0001] This utility model patent belongs to the field of temperature regulating devices for power supplies, and specifically discloses a temperature regulating device used for vehicle starting power supplies. Background Art

[0002] Starting a vehicle requires a starting power supply, but the effectiveness and service life of the starting power supply are significantly affected by the ambient temperature. Specifically, in high-temperature environments, the rate of chemical reactions within the starting power supply battery is accelerated, which causes the battery materials to age faster and reduces the battery's cycle life. In low-temperature environments, the starting power supply battery's discharge capacity is reduced, making it unable to meet the vehicle's cold-start energy needs. Therefore, to ensure the vehicle's starting effect, the starting power supply temperature must be regulated. For vehicle starting requirements, most of the temperature regulation methods currently used in the existing technology have certain limitations. Utility Model Content

[0003] The utility model discloses a temperature regulating device for a vehicle starting power supply. The utility model provides a temperature regulating device for a vehicle starting power supply, which can efficiently regulate the temperature of the starting power supply when the vehicle is started, has a simple structure and is low in cost.

[0004] The technical solution provided by this utility model is:

[0005] A temperature regulating device for a vehicle starting power supply, comprising:

[0006] A lithium battery module, which is located inside the device;

[0007] The battery pack insulation layer is wrapped around the outside of the lithium battery module;

[0008] An internal radiator, which is located inside the battery pack insulation layer;

[0009] a cooling fan connected to the internal radiator;

[0010] A semiconductor cooling sheet is embedded in one side of the thermal insulation layer of the battery pack;

[0011] A heat-conducting layer wrapped around the outside of the semiconductor refrigeration chip;

[0012] an external radiator, which is located outside the thermal insulation layer of the battery pack;

[0013] Preferably, the battery pack insulation layer is made of polyurethane material.

[0014] Preferably, the semiconductor refrigeration chip adopts NP type semiconductor.

[0015] Preferably, the semiconductor refrigeration plate is connected to the inner radiator through a heat-conducting layer and transfers heat thereto, and the other side of the refrigeration plate is also connected to the outer radiator through a heat-conducting layer and transfers heat thereto.

[0016] Preferably, the external radiator performs heat exchange through air cooling or natural convection heat dissipation environment.

[0017] Preferably, heat exchange is performed between the internal radiator and the lithium battery pack by direct contact.

[0018] Preferably, the amount of heating or cooling can be accurately adjusted by changing the magnitude of the current flowing through the semiconductor refrigeration chip.

[0019] The beneficial effects of the utility model are:

[0020] The temperature regulating device for a vehicle starting power supply provided by the utility model has a simple structure and low cost, and can efficiently complete the temperature regulation of the starting power supply when the vehicle is started. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the temperature control device for vehicle starting power supply according to the present invention.

[0022] Figure 2 It is a schematic diagram of a semiconductor refrigeration plate power supply device for a temperature regulating device applied to a vehicle starting power supply according to the utility model.

[0023] Figure 3 It is a schematic diagram of a temperature sensor of a thermostat device applied to a vehicle starting power supply according to the present invention.

[0024] Figure 4 This is a control flow chart of the temperature regulating device applied to the vehicle starting power supply described in the utility model. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0026] See also Figure 1, which is a schematic diagram of the overall structure of the temperature control device for vehicle starting power supply described in the present invention. It includes: a lithium battery module 110, which is located inside the device; a battery pack insulation layer 120, which is made of polyurethane material and wrapped around the outside of the lithium battery module 110; an internal radiator 130, which is located inside the battery pack insulation layer 120 and exchanges heat with the lithium battery pack 110 through direct contact; a cooling fan 131, which is connected to the internal radiator 130; a semiconductor cooling plate 140, which is made of NP-type semiconductor and is embedded in one side of the battery pack insulation layer 120; a heat conductive layer 141, which is wrapped around the outside of the semiconductor cooling plate 140; and an external radiator 150, which is located outside the battery pack insulation layer 120 and exchanges heat through air cooling or natural convection.

[0027] The semiconductor cooling fin 140 is connected to the inner heat sink 130 via a thermally conductive layer 141 for heat transfer. The other side of the cooling fin 140 is also connected to the outer heat sink 150 via a thermally conductive layer 141 for heat transfer. This reduces the thermal resistance between the semiconductor cooling fin 140 and the inner and outer heat sinks 140 and 150, thereby improving heat transfer efficiency. When heating is required in winter, the temperature of the inner heat sink 130 surface of the semiconductor cooling fin 140 is high, while the temperature of the outer heat sink 150 surface is low. Heat is then supplied to the battery pack 110 via the inner heat sink 130. When cooling is required in summer, the temperature of the inner heat sink 130 surface of the semiconductor cooling fin 140 is low, while the temperature of the outer heat sink 150 surface is high. Cooling is then supplied to the battery pack 110 via the inner heat sink 130.

[0028] In winter, the ambient temperature outside the insulation layer is low, and the insulation layer can effectively prevent heat loss within the insulation layer, so the battery pack can maintain a temperature above zero for a long time; in summer, the ambient temperature outside the insulation layer is high, and the insulation layer can effectively prevent ambient heat from entering the insulation layer. Except for the heat generated by the battery pack itself, it is almost unaffected by the ambient temperature outside the insulation layer.

[0029] See also Figure 2Schematic diagram of a thermostat semiconductor refrigeration power supply device for a vehicle starting power supply according to the present invention. It comprises a working end metal plate 160, an N-type semiconductor 170, a release end metal plate I 180, a power supply end I 190, a power supply end II 191, a release end metal plate II 181, a P-type semiconductor 171, and a starting power supply 210. When the power supply terminal I190 is connected to the positive pole of the power supply and the power supply terminal II191 is connected to the negative pole of the power supply, the current flows from the power supply terminal II191 to the power supply terminal I190, the working end metal plate 160 absorbs heat from the surrounding environment, while the release end metal plate I180 and the release end metal plate II181 release heat, thereby cooling the starting power supply 210; conversely, when the power supply terminal II191 is connected to the positive pole of the power supply and the power supply terminal I190 is connected to the negative pole of the power supply, the current flows from the power supply terminal I190 to the power supply terminal II191, the release end metal plate I180 and the release end metal plate II181 absorb heat, and the working end metal plate 160 releases heat, thereby heating the starting power supply 210.

[0030] See also Figure 3 , at least four temperature sensors are required to realize the temperature control of the lithium battery module 110, such as Figure 3 Temperature sensor 1 is used to measure the temperature of the battery module or the ambient temperature around the battery module; temperature sensors 2 and 3 are used to measure the temperatures of the two working surfaces of the semiconductor refrigeration chip, and temperature sensor 4 is used to measure the ambient temperature outside the insulation layer. These three temperature sensors are mainly used to adjust the working state of the semiconductor refrigeration chip, such as the operating voltage and operating current. On the one hand, this ensures the efficiency of the refrigeration chip, and on the other hand, it also protects the refrigeration chip from exceeding its operating range.

[0031] See also Figure 4 , which is a control flow chart for the thermostat device for a vehicle starting power supply according to the present invention. The thermostat device provided in this embodiment enables efficient thermal management of the starting power supply. This thermostat is independent of refrigerants or other media and has low thermal inertia, enabling rapid response to changes in the starting power supply temperature and precise adjustment, thereby helping to maintain the starting power supply operating within an optimal temperature range. The thermostat can accurately adjust the heating or cooling capacity by varying the current flowing through it, providing a high degree of flexibility and customizability to meet diverse thermal management requirements.

[0032] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A temperature control device for a vehicle starting power supply, characterized in that: include: A lithium battery module, which is located inside the device; The battery pack insulation layer is wrapped around the outside of the lithium battery module; An internal radiator, which is located inside the battery pack insulation layer; a cooling fan connected to the internal radiator; A semiconductor cooling sheet is embedded in one side of the thermal insulation layer of the battery pack; A heat-conducting layer wrapped around the outside of the semiconductor refrigeration chip; The external radiator is located outside the thermal insulation layer of the battery pack.

2. The temperature regulating device for vehicle starting power supply according to claim 1, characterized in that: The battery pack insulation layer is made of polyurethane material.

3. The temperature regulating device for vehicle starting power supply according to claim 1, characterized in that: The semiconductor refrigeration chip adopts NP type semiconductor.

4. The temperature regulating device for vehicle starting power supply according to claim 1, characterized in that: The semiconductor refrigeration chip is connected to the inner radiator through the heat conduction layer and transfers heat. The other side of the refrigeration chip is also connected to the outer radiator through the heat conduction layer and transfers heat.

5. The temperature regulating device for vehicle starting power supply according to claim 1, characterized in that: The external radiator exchanges heat through air cooling or natural convection cooling environment.

6. The temperature regulating device for vehicle starting power supply according to claim 1, characterized in that: Heat exchange is carried out between the internal radiator and the lithium battery pack through direct contact.

7. The temperature regulating device for vehicle starting power supply according to claim 1, characterized in that: The heating or cooling capacity can be accurately adjusted by changing the current flowing through the semiconductor refrigeration chip.

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