Battery warming device

By wrapping the battery with an insulating layer containing an embedded heating wire and using an inverter to regulate the temperature of the heating wire, the problem of poor insulation performance of existing battery insulation technology in extremely cold environments is solved, enabling the battery to work efficiently and extend its lifespan in low-temperature environments.

CN224473443UActive Publication Date: 2026-07-07王德峰

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
王德峰
Filing Date
2025-06-23
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing battery insulation technologies lack active heating capabilities in extremely cold environments, resulting in insulation performance being greatly affected by ambient temperature. Furthermore, passive insulation solutions increase the size and weight of the battery, impacting device portability.

Method used

Design a battery insulation device that uses an insulating jacket to wrap the battery and embeds heating wires inside. The heating temperature of the heating wires is adjusted by an inverter and a temperature control switch to form an active heating system, ensuring that the battery maintains an effective working temperature in low-temperature environments.

Benefits of technology

The active heating function significantly improves the battery's working efficiency and lifespan in extremely cold conditions, ensuring stable power supply in low-temperature environments and extending the battery's effective working time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of battery heat preservation, especially to a battery heat preservation device, including the battery body, still including the heat preservation clothes of being wrapped in the outside of battery body, the electric heating wire is inlayed in the heat preservation clothes, the front side of heat preservation clothes is equipped with control module, control module integrates display screen, temperature control switch and controller, the top of control module is equipped with the interface, the power cord is inserted to the interface, the end of power cord is connected with inverter, the top of battery body sets up the limiting mechanism, and the limiting mechanism is used for fixing inverter, the top of heat preservation clothes sets up the binding mechanism, the utility model discloses through setting up heat preservation clothes, the electric energy in the inside of battery body is delivered to the electric heating wire in the inside of heat preservation clothes through power cord, can adjust the heating temperature of electric heating wire through temperature control switch and controller, and displays on the display screen, to this end realizes the heat preservation heating function of battery body, makes it still can keep the better effective working time under the severe cold environment.
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Description

Technical Field

[0001] This utility model relates to the field of battery insulation technology, and in particular to a battery insulation device. Background Technology

[0002] In extremely cold conditions, the electrolyte in the batteries of large equipment vehicles becomes viscous and internal resistance increases due to low temperatures, resulting in a significant decrease in service life and effective working time, and a substantial reduction in efficiency. To improve battery performance, insulation devices need to be installed to ensure normal charging and discharging of the batteries, extend their service life, and guarantee reliable starting and continuous power supply for vehicles in low-temperature environments.

[0003] Currently, common battery insulation technologies mainly involve improving the materials of the battery casing, such as using a double-layer insulation structure or adding an insulation coating. There are also designs that place the entire battery inside an insulation box. However, these passive insulation solutions generally have obvious defects. They lack active heating function, are difficult to maintain the ideal working temperature in extremely cold environments, and their insulation effect is greatly affected by the ambient temperature. They are not very practical, and most solutions increase the size and weight, affecting the portability of the equipment.

[0004] Therefore, in response to the problems of existing battery insulation methods that typically involve improving the material of the battery casing or placing the battery inside an insulation box, which lack heating function and have low practicality, a battery insulation device can be designed. Utility Model Content

[0005] To overcome the problem that existing battery insulation typically involves improving the materials of the battery casing or placing the battery inside an insulation box, which lacks heating function and has low practicality.

[0006] The technical solution of this utility model is as follows: a battery insulation device, including a battery body; and an insulation garment wrapped around the outside of the battery body, with heating wires embedded inside the insulation garment. A control module is installed on the front side of the insulation garment, the control module integrating a display screen, a temperature control switch and a controller. An interface is installed on the top of the control module, and a power cord is plugged into the interface. An inverter is connected to the end of the power cord. A limit mechanism is provided on the top of the battery body for fixing the inverter. A binding mechanism is provided on the top of the insulation garment.

[0007] Preferably, by setting up an insulating garment, the heating wire inside can generate heat after being energized, thereby heating and keeping the battery body warm. The inverter can regulate the voltage of the battery body to a suitable range for the operation of the heating wire. The electrical energy inside the battery body is transferred to the heating wire inside the insulating garment through the power cord. The heating temperature of the heating wire can be adjusted by the temperature control switch and controller and displayed on the display screen, thereby realizing the function of heating and keeping the battery body warm. This allows it to maintain a good effective working time even in extremely cold environments. This solves the problem that existing battery insulation usually involves improving the material of the battery shell or placing the battery inside the insulating box, which lacks heating function and has low practicality.

[0008] Preferably, the limiting mechanism includes a locking component and a fixing component. The locking component is used to limit the inverter, and the fixing component is used to fix the inverter.

[0009] Preferably, the positioning assembly includes a positioning seat and a positioning groove; the top of the battery body is provided with a positioning seat, and the top of the positioning seat is provided with a positioning groove, which is compatible with the inverter.

[0010] Preferably, the fixing component includes fixing plates and fixing screws; two fixing plates are fixed on both the left and right sides of the inverter, and fixing screws are connected to the fixing plates, which are fixed to the positioning seats by the fixing screws.

[0011] Preferably, the binding mechanism includes a tightening component and a positioning component, wherein the tightening component is used to tighten the opening of the thermal clothing, and the positioning component is used to position the tightening component.

[0012] Preferably, the tightening component includes a binding strap, slots, and binding ropes; the top of the thermal clothing is equipped with a binding strap, and multiple slots are opened on all four sides of the binding strap, through which binding ropes are inserted.

[0013] Preferably, the positioning component includes a limiting block, a positioning piece, and positioning holes; both ends of the binding rope are provided with limiting blocks, the binding rope is provided with positioning pieces, and the positioning pieces are provided with two positioning holes, the diameter of the positioning holes being smaller than the diameter of the limiting block.

[0014] The beneficial effects of this utility model are:

[0015] By wrapping the battery in a soft insulating layer and incorporating a built-in heating element, the battery can effectively maintain its normal operating temperature in low-temperature environments. This design prevents the electrolyte from becoming viscous due to cold, reduces the impact of increased internal resistance on battery performance, and ensures stable power supply even in frigid conditions. At the same time, the continuous heating protection of the insulating layer slows down the aging of the battery, significantly extending its service life and greatly improving its working efficiency in winter. This design is especially suitable for vehicles and outdoor equipment in cold regions. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the thermal clothing of this utility model;

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the control module of this utility model;

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the binding mechanism of this utility model;

[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the limiting component of this utility model.

[0021] Explanation of reference numerals in the attached diagram: 1. Battery body; 2. Thermal insulation cover; 3. Control module; 4. Interface; 5. Power cord; 6. Inverter; 71. Positioning seat; 72. Positioning groove; 73. Fixing piece; 74. Fixing screw; 81. Binding strap; 82. Groove; 83. Binding rope; 84. Limit block; 85. Positioning piece; 86. Positioning hole. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] In the roar of engines in vehicles and outdoor equipment, the battery acts as a silent energy steward, performing multiple crucial functions. This seemingly simple lead-acid or lithium-ion device is in fact an indispensable energy hub for modern motor systems. As the core of the starting system, the battery's primary task is to provide a large instantaneous current. When the driver turns the key, the battery can release a strong current in a short time, driving the starter motor to rotate the engine crankshaft until the internal combustion engine completes its ignition cycle. This "wake-up" capability freed traditional gasoline vehicles from the primitive method of hand-crank starting, enabling convenient one-button start. In terms of power management, the battery plays the role of an intelligent regulator. When the engine is running, it stores excess electrical energy generated by the generator; when the engine is off, it continuously supplies power to the vehicle's electronic systems. The ECU (Electronic Control Unit), electronic fuel injection system, sensor network, and other sophisticated components in modern vehicles all rely on the stable voltage provided by the battery. For outdoor work equipment, the battery's portable power supply characteristics are even more prominent. Mobile lighting systems, field communication equipment, power tools, and other devices can all obtain continuous power from the battery. Certain specialized equipment, such as aerial work platforms and electric forklifts, rely entirely on large-capacity battery packs for power. In off-grid environments, the combination of batteries and solar panels has become a reliable energy solution. From cars driving on city streets to construction machinery operating in remote areas, batteries remain the "energy heart" ensuring their normal operation.

[0024] When using batteries in frigid regions, the low temperature significantly impacts battery performance, resulting in a marked reduction in usage time and efficiency. This is primarily because low temperatures slow down the internal chemical reactions and reduce electrolyte fluid flow, thus affecting the battery's discharge capacity and charging efficiency. Furthermore, low temperatures increase the battery's internal resistance, further reducing its output power. Therefore, in cold environments, battery range is greatly reduced, and sudden power outages may occur, causing inconvenience to users. In extremely cold regions, the charging process is also affected. Low temperatures slow down charging speed, reduce charging efficiency, and may even prevent the battery from fully charging. This not only prolongs charging time but may also damage the battery's lifespan. Prolonged use and charging in low-temperature environments will gradually decrease battery capacity and shorten its lifespan. Therefore, users in frigid regions need to pay special attention to battery maintenance and upkeep to minimize the negative effects of low temperatures.

[0025] Common battery insulation technologies primarily achieve temperature regulation through material modifications or structural optimization of the battery casing. While these passive insulation solutions can mitigate the impact of low temperatures on battery performance to some extent, their design limitations often make them unsuitable for extreme conditions in practical applications. Currently, mainstream insulation technologies include double-layer insulation structures, the addition of insulating coatings, and placing the entire battery within an insulated enclosure. These methods each have their own characteristics but also share significant common drawbacks. Regarding material modifications, double-layer insulation structures are a common design approach. This approach typically involves an air gap or insulating material between the outer shell and the inner liner, utilizing the low thermal conductivity of air or the insulating medium to slow heat loss. However, the insulation effectiveness of this structure is entirely dependent on the temperature difference between the ambient temperature and the battery's operating temperature; its insulation efficiency drops significantly when the ambient temperature is too low. Furthermore, achieving ideal insulation often requires increasing the casing thickness, which not only leads to battery expansion but also increases overall weight, particularly disadvantageous for portable devices. The application of insulating coatings represents another direction for improvement. Special materials are sprayed or plated onto the surface of the battery casing to form a functional layer that reflects heat radiation or blocks heat conduction. While this type of coating technology does not significantly increase the product's size, its insulation performance is strictly limited by the coating material and thickness. In sustained low-temperature environments, the coating can only provide limited insulation and cannot fundamentally solve the problem of continuously decreasing internal battery temperature. More importantly, these functional coatings often have durability issues; after long-term use, they may peel off, age, and experience other phenomena, leading to further degradation of insulation performance. The design of placing the entire battery within an insulated enclosure is more common in industrial applications. This approach reduces heat exchange between the battery and the external environment by creating a relatively enclosed insulated space. The insulated enclosure is typically made of highly efficient insulation materials such as foam or vacuum insulation panels, which can maintain a certain degree of temperature stability within the enclosure. However, the biggest drawback of this design is that it significantly increases the system's size and weight, making the entire power module bulky and cumbersome. For applications with strict space constraints, such as new energy vehicles or portable electronic devices, this solution is often difficult to adopt due to size limitations. The core problem faced by these passive insulation technologies is the lack of active temperature regulation capabilities. They can only slow down the rate of heat loss, but cannot actively replenish heat when the ambient temperature is too low. When batteries operate for extended periods in frigid environments, their internal temperature will inevitably gradually decrease, ultimately affecting their charge-discharge performance and cycle life. Furthermore, most passive insulation solutions require compromises in terms of size, weight, or cost; this design balance often comes at the expense of practicality and economy. The limitations of existing insulation technologies are particularly pronounced in applications requiring a balance between lightweight design and high performance, becoming a major bottleneck restricting the reliable use of batteries in extreme environments.

[0026] Please see Figures 1-5 This utility model provides an embodiment: a battery insulation device, including a battery body 1; and an insulation garment 2 wrapped around the outside of the battery body 1, the insulation garment 2 having embedded heating wires, a control module 3 installed on the front side of the insulation garment 2, the control module 3 integrating a display screen, a temperature control switch and a controller, an interface 4 installed on the top of the control module 3, a power cord 5 plugged into the interface 4, an inverter 6 connected to the end of the power cord 5, a limit mechanism provided on the top of the battery body 1 for fixing the inverter 6, and a binding mechanism provided on the top of the insulation garment 2. By setting up the thermal insulation garment 2, the heating wire inside the thermal insulation garment 2 generates heat after being powered on, providing thermal compensation for the battery body 1. The inverter 6 is responsible for converting the output voltage of the battery body 1 into a voltage range suitable for the operation of the heating wire. Electrical energy is transmitted from the battery body 1 to the heating wire circuit inside the thermal insulation garment 2 through the power cord 5. The temperature control switch and the controller work together to accurately adjust the heating power of the heating wire, and at the same time, the real-time temperature data is fed back to the display screen, which can ensure that the battery body 1 maintains the optimal operating temperature in low-temperature environments, thereby effectively extending its continuous working time in severe cold conditions.

[0027] Please see Figure 1 and Figure 5 In this embodiment, the limiting mechanism includes a locking component and a fixing component. The locking component is used to limit the inverter 6, and the fixing component is used to fix the inverter 6. The locking component includes a positioning seat 71 and a positioning groove 72. The top of the battery body 1 is provided with a positioning seat 71, and the top of the positioning seat 71 is provided with a positioning groove 72. The positioning groove 72 is adapted to the inverter 6. By setting the positioning seat 71 and the positioning groove 72, the inverter 6 can be placed in the positioning groove 72 for limiting, reducing the shaking of the inverter 6 and preventing its position from shifting. The fixing component includes a fixing plate 73 and a fixing screw 74. Two fixing plates 73 are fixed on both the left and right sides of the inverter 6. The fixing plates 73 are connected to the fixing screws 74. The fixing plates 73 are fixed to the positioning seat 71 by the fixing screws 74. By setting the fixing plates 73 and the fixing screws 74, the position of the inverter 6 can be fixed, improving its stability in use.

[0028] Please see Figures 1-4In this embodiment, the binding mechanism includes a tightening component and a positioning component. The tightening component is used to tighten the opening of the thermal insulation garment 2, and the positioning component is used to position the tightening component. The tightening component includes a binding strap 81, slots 82, and binding ropes 83. A binding strap 81 is installed on the top of the thermal insulation garment 2. Multiple slots 82 are opened on all four sides of the binding strap 81. Binding ropes 83 are inserted through the slots 82 on the binding strap 81. By setting the binding strap 81 and binding ropes 83, pulling the two ends of the binding ropes 83 and pushing the binding strap 81, the garment can be... The opening of the thermal insulation garment 2 is closed, and then the binding rope 83 is tied tightly, thereby forming a wrap around the battery body 1. The positioning component includes a limit block 84, a positioning piece 85, and a positioning hole 86. Limit blocks 84 are provided at both ends of the binding rope 83, and a positioning piece 85 is provided on the binding rope 83. Two positioning holes 86 are opened on the positioning piece 85. The diameter of the positioning hole 86 is smaller than the diameter of the limit block 84. By providing the positioning hole 86, the positioning hole 86 can block the limit block 84 and prevent the binding rope 83 from slipping off the positioning piece 85.

[0029] During operation, the insulating jacket 2 wraps around the outside of the battery body 1. The heating wires embedded inside generate heat when energized, keeping the battery body 1 warm. The inverter 6 adjusts the output voltage of the battery body 1 to a suitable range for the heating wires, places it in the positioning groove 72 of the positioning seat 71 on top of the battery body 1, and fixes it to the positioning seat 71 using fixing pieces 73 and fixing screws 74. Electrical energy inside the battery body 1 is transferred to the heating wires inside the insulating jacket 2 via the power cord 5. The control module 3 integrates a temperature control switch and a control... The controller adjusts the heating temperature of the heating wire according to the setting and displays the temperature information on the display screen. The binding strap 81 at the top of the thermal insulation garment 2 is used to tighten its opening. The binding rope 83, which is inserted into the slot 82 of the binding strap 81, pulls the binding strap 81 to make the opening of the thermal insulation garment 2 shrink and wrap around the battery body 1. The limiting blocks 84 at both ends of the binding rope 83 are locked in the positioning holes 86 on the positioning plate 85 to prevent the binding rope 83 from loosening. Through heating by the heating wire and heat insulation by the thermal insulation garment 2, the battery body 1 can maintain an effective working temperature in the cold environment and extend its effective working time.

[0030] Through the above steps, by setting up an insulation jacket 2, which integrates heating wires, and the battery body 1 supplying power to the heating wires, the heating wires convert electrical energy into heat energy when powered on, providing continuous and stable heating for the battery body 1. The inverter 6 plays a key role in this process, adjusting the output voltage of the battery body 1 in real time to meet the working requirements of the heating wires. The electrical energy of the battery body 1 is transmitted to the heating wire circuit inside the insulation jacket 2 through the power cord 5, forming a complete power supply and heating cycle. The temperature control switch and controller constitute an intelligent temperature control module. The former is responsible for circuit on / off protection, while the latter precisely controls the heating power of the heating wires. The two work together to ensure that the temperature is stable within the set range, and the temperature data is fed back in real time through the display screen, enabling the battery body 1 to maintain the optimal working temperature in extremely cold environments, significantly improving its effective working time under low-temperature conditions. This solves the problem that existing battery insulation usually involves improving the material of the battery casing or placing the battery inside the insulation box, lacking heating function and having low practicality.

Claims

1. A battery insulation device, comprising a battery body (1); characterized in that: It also includes an insulating cover (2) wrapped around the outside of the battery body (1), with heating wires embedded in the insulating cover (2). A control module (3) is installed on the front side of the insulating cover (2). The control module (3) integrates a display screen, a temperature control switch and a controller. An interface (4) is installed on the top of the control module (3). A power cord (5) is plugged into the interface (4). An inverter (6) is connected to the end of the power cord (5). A limit mechanism is provided on the top of the battery body (1). The limit mechanism is used to fix the inverter (6). A binding mechanism is provided on the top of the insulating cover (2).

2. The battery insulation device according to claim 1, characterized in that: The limiting mechanism includes a locking component and a fixing component. The locking component is used to limit the inverter (6), and the fixing component is used to fix the inverter (6).

3. The battery insulation device according to claim 2, characterized in that: The positioning assembly includes a positioning seat (71) and a positioning groove (72); the top of the battery body (1) is provided with a positioning seat (71), and the top of the positioning seat (71) is provided with a positioning groove (72), which is adapted to the inverter (6).

4. The battery insulation device according to claim 3, characterized in that: The fixing components include fixing plates (73) and fixing screws (74); two fixing plates (73) are fixed on both the left and right sides of the inverter (6), and fixing screws (74) are connected to the fixing plates (73). The fixing plates (73) are fixed to the positioning seats (71) by fixing screws (74).

5. A battery insulation device according to claim 1, characterized in that: The binding mechanism includes a tightening component and a positioning component. The tightening component is used to tighten the opening of the thermal clothing (2), and the positioning component is used to position the tightening component.

6. A battery insulation device according to claim 5, characterized in that: The tightening assembly includes a binding strap (81), a slot (82), and a binding rope (83); the top of the thermal clothing (2) is equipped with a binding strap (81), and multiple slots (82) are opened on all four sides of the binding strap (81). Binding ropes (83) are inserted through the slots (82) on the binding strap (81).

7. A battery insulation device according to claim 6, characterized in that: The positioning component includes a limiting block (84), a positioning piece (85), and a positioning hole (86); both ends of the binding rope (83) are provided with limiting blocks (84), the binding rope (83) is provided with a positioning piece (85), and the positioning piece (85) has two positioning holes (86), the diameter of the positioning hole (86) is smaller than the diameter of the limiting block (84).