Cold-insulation and warm-keeping storage battery constant-temperature heating sheet

Abstract

The utility model relates to the technical field of storage batteries, in particular to a storage battery constant-temperature heating plate capable of insulating cold and keeping warm. The heating device comprises a high-temperature-resistant heat preservation layer, gum aluminum foil is fixedly arranged on one side of the high-temperature-resistant heat preservation layer, a silicone rubber spiral electric heating wire is fixedly arranged between the high-temperature-resistant heat preservation layer and the gum aluminum foil, and one end of the silicone rubber spiral electric heating wire is electrically connected with a temperature controller. And the other end of the silicone rubber spiral electric heating wire is electrically connected with a connecting wire. According to the device, by arranging the high-temperature-resistant heat preservation layer, cold insulation can be effectively conducted on the storage battery, so that the heating effect of the device is improved, meanwhile, the temperature controller can control the working state of the silicone rubber spiral electric heating wire in real time according to the temperature of the storage battery, and therefore the temperature of the storage battery is always kept between 25 DEG C and 35 DEG C during charging or discharging; therefore, the charging and discharging efficiency of the storage battery is effectively improved, and the damage to the storage battery caused by low temperature can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and more specifically, to a constant temperature heating element for a battery that provides insulation and warmth. Background Technology

[0002] Storage batteries have a wide range of applications, commonly used in ships, drones, automobiles, new energy vehicles, electric vehicles, and other equipment. Modern storage batteries are typically lithium-ion batteries capable of continuous charging and discharging.

[0003] However, while existing storage batteries can continuously charge and discharge, their charging and discharging efficiency is usually highest at temperatures between 25°C and 38°C. In winter, when the outside temperature is low, the electrolyte inside the storage battery will become more viscous due to the temperature drop, which will increase the resistance to chemical reactions. This will result in a 60%-70% reduction in charging capacity and a 50%-60% reduction in discharging capacity, which will seriously affect the operating efficiency of electrical equipment. Furthermore, at low temperatures, lithium batteries are prone to crystallization. Crystallization may puncture the internal separator of the battery, causing a short circuit and fire. This process is irreversible and difficult to recover after the weather warms up, thus damaging the storage battery. Utility Model Content

[0004] The purpose of this invention is to provide a constant temperature heating element for a storage battery that is cold-insulating and heat-preserving, in order to solve the problem that existing storage batteries are difficult to charge and discharge in low-temperature environments, and that batteries are easily damaged and catch fire in low-temperature environments.

[0005] To achieve the above objectives, a constant temperature heating element for a storage battery is provided, comprising a high-temperature resistant insulation layer, an adhesive aluminum foil fixedly disposed on one side of the high-temperature resistant insulation layer, a silicone rubber spiral heating wire fixedly disposed between the high-temperature resistant insulation layer and the adhesive aluminum foil, one end of the silicone rubber spiral heating wire being electrically connected to a temperature controller, and the other end of the silicone rubber spiral heating wire being electrically connected to a connecting wire.

[0006] As a further improvement to this technical solution, an aluminum foil sticker is adhered to the side of the adhesive aluminum foil away from the high-temperature insulation layer, and the adhesive aluminum foil is adhered to the storage battery.

[0007] As a further improvement to this technical solution, the outer material of the high-temperature resistant insulation layer is non-woven fabric, and the inner material of the high-temperature resistant insulation layer is rubber foam.

[0008] As a further improvement to this technical solution, the outer layer material of the silicone rubber spiral heating wire is high-temperature resistant silicone rubber.

[0009] As a further improvement to this technical solution, the highest threshold of the thermostat is set to 55°C, and the lowest threshold of the thermostat is set to 20°C.

[0010] As a further improvement to this technical solution, the connecting wire is wrapped with high and low temperature resistant insulating silicone.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. The constant temperature heating element for this cold-insulating and heat-preserving battery effectively insulates the battery from the cold by setting a high-temperature resistant insulation layer, thereby improving the heating effect of the device. At the same time, the temperature controller can control the working state of the silicone rubber spiral heating wire in real time according to the temperature of the battery, so that the battery is always kept between 25℃ and 35℃ during charging or discharging, thereby effectively improving the charging and discharging efficiency of the battery and reducing the damage to the battery caused by low temperature.

[0013] 2. In this heat-insulating and cold-preserving battery constant-temperature heating element, an adhesive aluminum foil is installed on one side of the high-temperature resistant insulation layer. During installation, the user can peel off the aluminum foil sticker and use the adhesive aluminum foil to install the entire device on the outside of the battery, thus quickly completing the installation and improving the convenience of the device. Furthermore, the adhesive aluminum foil has good thermal conductivity, which can quickly transfer the heat generated by the silicone rubber spiral heating wire to the battery. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0016] Figure 3 This is a front view of the aluminum foil sticker of this utility model after the adhesive backing has been peeled off;

[0017] Figure 4 This is a schematic diagram of the overall structure of the present invention after it is installed in the storage battery.

[0018] The meanings of the labels in the diagram are as follows:

[0019] 1. High-temperature resistant insulation layer; 2. Silicone rubber spiral heating wire; 3. Thermostat; 4. Connecting wire; 5. Adhesive-backed aluminum foil; 51. Aluminum foil sticker. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Please refer to Figure 1 - Figure 4 As shown, the purpose of this embodiment is to provide a cold-insulating and heat-preserving constant temperature heating element for a storage battery, including a high-temperature resistant insulation layer 1, an adhesive aluminum foil 5 fixedly disposed on one side of the high-temperature resistant insulation layer 1, a silicone rubber spiral heating wire 2 fixedly disposed between the high-temperature resistant insulation layer 1 and the adhesive aluminum foil 5, a temperature controller 3 electrically connected to one end of the silicone rubber spiral heating wire 2, and a connecting wire 4 electrically connected to the other end of the silicone rubber spiral heating wire 2.

[0022] In this embodiment, the high-temperature resistant insulation layer 1 is used to insulate the battery. The silicone rubber spiral heating wire 2 is connected to an external power source through the connecting wire 4. The silicone rubber spiral heating wire 2 is the main heating element of the device. The temperature controller 3 is connected to an external power source through the connecting wire 4. The temperature controller 3 is a KSD temperature controller, which is used to control the working state of the silicone rubber spiral heating wire 2. The adhesive aluminum foil 5 is used to connect the device to the battery.

[0023] In addition, an aluminum foil sticker 51 is attached to the side of the adhesive aluminum foil 5 away from the high-temperature insulation layer 1, and the adhesive aluminum foil 5 is attached to the storage battery.

[0024] In this embodiment, one side of the adhesive aluminum foil 5 is an aluminum foil sticker 51, which can be peeled off from one side of the adhesive aluminum foil 5. After peeling off, the exposed side of the adhesive aluminum foil 5 is coated with adhesive, so that the entire device can be pasted to the outside of the storage battery. The material of the adhesive aluminum foil 5 is aluminum foil, which has good thermal conductivity and can quickly transfer heat to the storage battery after the silicone rubber spiral heating wire 2 heats up.

[0025] Furthermore, the outer material of the high-temperature resistant insulation layer 1 is non-woven fabric, and the inner material of the high-temperature resistant insulation layer 1 is rubber foam.

[0026] In this embodiment, the high-temperature insulation layer 1 can be composed of two layers: an outer layer and an inner layer. The inner layer of rubber foam is high-temperature resistant EVA rubber foam, which can be used normally within the range of 120℃-150℃, providing good heat insulation performance for the device. Moreover, it has low cost and high economic efficiency. The non-woven fabric is mainly used to wrap the rubber foam.

[0027] Furthermore, the outer layer of the silicone rubber spiral heating wire 2 is made of high-temperature resistant silicone rubber.

[0028] In this embodiment, the silicone rubber spiral heating wire 2 is composed of two layers of material: an outer layer and an inner layer. The inner layer is a heating wire, and the outer layer is high-temperature resistant silicone rubber. High-temperature resistant silicone rubber has good thermal conductivity and is soft in texture, which can effectively prevent friction from damaging the heating wire and improve the safety factor of the device.

[0029] Specifically, the highest threshold of thermostat 3 is set to 55℃, and the lowest threshold of thermostat 3 is set to 20℃.

[0030] In this embodiment, the temperature controller 3 is the control element of the device. When the battery temperature is below 20°C, the temperature controller 3 controls the silicone rubber spiral heating wire 2 to connect to the power supply for heating. When the heating element temperature is above 55°C, the temperature controller 3 disconnects the silicone rubber spiral heating wire 2 from the power supply. At this time, the silicone rubber spiral heating wire 2 stops heating, thereby keeping the battery temperature between 25°C and 35°C.

[0031] In addition, the connecting wire 4 is wrapped with high and low temperature resistant insulating silicone.

[0032] In this embodiment, the inside of the connecting wire 4 is a power cord, and the outside is wrapped with high and low temperature resistant insulating silicone. This material can work stably in the temperature range of -60℃ to 200℃, which can effectively protect the normal operation of the power cord inside the connecting wire 4.

[0033] The working principle of this device is as follows: During charging, the user first connects the battery power cord and connecting wire 4 to the external power source, and then the battery can be charged. After the connecting wire 4 is energized, the temperature controller 3 starts to work. When the battery temperature is lower than the set threshold, the temperature controller 3 controls the silicone rubber spiral heating wire 2 to work and heat the battery. When the battery temperature is higher than the set threshold, the temperature controller 3 controls the silicone rubber spiral heating wire 2 to stop working, so that the battery temperature is always kept at about 25℃-35℃ during charging, which effectively improves the charging efficiency of the battery.

[0034] When using the storage battery, the user can connect the connecting wire 4 to the socket on the vehicle powered by the storage battery, thereby energizing the thermostat 3. Similarly, the thermostat 3 can control the silicone rubber spiral heating wire 2 to work in a timely manner, thereby keeping the storage battery at around 25℃-35℃, effectively improving the discharge efficiency of the storage battery.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A constant-temperature heating element for a storage battery that provides both cold insulation and heat preservation, characterized in that: It includes a high-temperature resistant insulation layer (1), on one side of which is a backed aluminum foil (5), and a silicone rubber spiral heating wire (2) is fixed between the high-temperature resistant insulation layer (1) and the backed aluminum foil (5). One end of the silicone rubber spiral heating wire (2) is electrically connected to a thermostat (3), and the other end of the silicone rubber spiral heating wire (2) is electrically connected to a connecting wire (4).

2. The thermal insulation and heat preservation battery constant temperature heating element according to claim 1, characterized in that: An aluminum foil sticker (51) is adhered to the side of the adhesive aluminum foil (5) away from the high-temperature insulation layer (1), and the adhesive aluminum foil (5) is adhered to the storage battery.

3. The thermal insulation and heat preservation battery constant temperature heating element according to claim 1, characterized in that: The outer material of the high-temperature resistant insulation layer (1) is non-woven fabric, and the inner material of the high-temperature resistant insulation layer (1) is rubber foam.

4. The thermal insulation and heat preservation battery constant temperature heating element according to claim 1, characterized in that: The outer layer of the silicone rubber spiral heating wire (2) is made of high-temperature resistant silicone rubber.

5. The thermal insulation and heat preservation battery constant temperature heating element according to claim 1, characterized in that: The highest threshold of the thermostat (3) is set to 55°C, and the lowest threshold of the thermostat (3) is set to 20°C.

6. The thermal insulation and heat preservation battery constant temperature heating element according to claim 1, characterized in that: The connecting wire (4) is wrapped with high and low temperature resistant insulating silicone.

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