Intelligent temperature control heat preservation cover for battery

Abstract

The utility model relates to an intelligent temperature control heat preservation cover for a battery, which comprises a plurality of heat preservation single sheets, each heat preservation single sheet is provided with a fixing component, and the plurality of heat preservation single sheets are detachably connected with one another through the fixing components to form a heating integrated heat preservation cover; the multiple fixing assemblies are arranged on the edge of the heat preservation single piece at intervals, and the length of each fixing assembly can be adjusted. The heating integrated heat preservation cover is coated outside the battery system, and at least one heat preservation single sheet is provided with heat dissipation holes; each thermal insulation single sheet comprises an outer layer, a thermal insulation layer and a flame-retardant inner layer, and the outer layer, the thermal insulation layer and the flame-retardant inner layer are sequentially laminated; a heating film is embedded in the heat preservation layer, and a temperature sensor is arranged in the heat preservation layer and close to the heating film. Each thermal insulation single sheet is connected with a plurality of temperature acquisition wire harnesses, and each temperature acquisition wire harness is connected to a temperature sensor and a temperature management system and is used for transmitting battery temperature data in real time; the temperature management system is connected with the heating film and used for controlling the heating power of the heating film according to the battery temperature data.

Description

Technical Field

[0001] This utility model belongs to the field of battery heating and insulation technology, specifically relating to an intelligent temperature control and insulation cover for batteries. Background Technology

[0002] With the increasing popularity of new energy vehicles, the performance degradation of battery systems in extremely cold environments has become increasingly prominent. Low temperatures not only lead to a sharp decrease in battery capacity and a drop in charging efficiency, but may also cause safety hazards, severely restricting the application of new energy vehicles in cold regions. Traditional battery insulation solutions mostly rely on fixed insulation structures, which make it difficult to balance the insulation requirements under extreme temperatures with the convenience of daily maintenance.

[0003] In existing technologies, common insulation devices employ an integrated design, encasing the battery pack in rigid insulation material. While this approach provides basic insulation, it lacks flexibility and cannot adapt to battery packs of different shapes. Furthermore, temperature control largely relies on manual intervention, making dynamic and precise adjustment difficult, resulting in high energy consumption and slow response.

[0004] The core shortcomings of existing technologies are: fixed insulation structures limit installation and maintenance efficiency; passive single insulation layers cannot meet the needs of intelligent temperature control and cannot adjust heating strategies according to real-time temperature changes, leading to energy waste and safety risks. Therefore, an intelligent temperature-controlled insulation cover for batteries is needed. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides an intelligent temperature-controlled insulation cover for batteries. The technical problem to be solved by this utility model is achieved through the following technical solution:

[0006] This utility model provides an intelligent temperature-controlled insulation cover for batteries, comprising: multiple insulation sheets, each insulation sheet having a fixing component, the multiple insulation sheets being detachably connected to each other via the fixing components to form an integrated heating insulation cover; multiple fixing components spaced apart on the edges of the insulation sheets, and the length of each fixing component being adjustable; the integrated heating insulation cover covering the battery system, at least one insulation sheet having heat dissipation holes; each insulation sheet comprising: an outer layer, an insulation layer, and a flame-retardant inner layer, the outer layer, the insulation layer, and the flame-retardant inner layer being stacked sequentially; a heating film embedded in the insulation layer, and multiple temperature sensors distributed near the heating film within the insulation layer; each insulation sheet being connected to multiple temperature acquisition harnesses, each temperature acquisition harness being connected to the temperature sensors and a temperature management system for real-time transmission of battery temperature data; the temperature management system being connected to the heating film for controlling the heating power of the heating film based on the battery temperature data.

[0007] In one embodiment of this utility model, the fixing component is an elastic strap or a buckle.

[0008] In one embodiment of the present invention, the heat insulation layer includes a first heat insulation layer and a second heat insulation layer, wherein the first heat insulation layer covers the outside of the heating film, and the second heat insulation layer covers the outside of the first heat insulation layer.

[0009] In one embodiment of this utility model, the first insulation layer is a nano-aerogel felt material, and the second insulation layer is heat insulation cotton.

[0010] In one embodiment of this utility model, the heating film is a PTC ceramic heating material or a graphene thermal conductive film.

[0011] In one embodiment of this utility model, each of the temperature sensors is connected to one or more temperature acquisition harnesses for real-time transmission of battery temperature data from multiple points.

[0012] In one embodiment of this utility model, a plurality of temperature sensors are distributed around the perimeter and center of the insulation layer.

[0013] In one embodiment of this utility model, multiple heat-insulating single sheets are all connected to the battery system, and heating and heat preservation are achieved by powering the battery system.

[0014] In one embodiment of this utility model, the intelligent temperature control and insulation cover for batteries further includes a heat dissipation component, which is disposed near the heat dissipation hole for active heat dissipation.

[0015] In one embodiment of this utility model, the heating film is connected to the temperature management system via a CAN bus. When the temperature is below the low temperature threshold, heating is started. When the temperature is above the high temperature threshold, an alarm is triggered and the heat dissipation component is activated.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This utility model presents an intelligent temperature-controlled insulation cover for batteries. It utilizes detachable multi-layered insulation panels to form an integrated heating and insulation cover. Each insulation panel features a multi-layered composite structure: a wear-resistant outer layer, a heat-insulating middle layer, and a flame-retardant inner layer. Combined with a temperature management system, it effectively solves the problems of poor flexibility and delayed temperature control found in traditional solutions. The insulation cover can adapt to different battery pack shapes and dynamically adjusts the temperature through distributed temperature sensors and a heating film, ensuring stable battery performance in extremely cold environments. Simultaneously, the flame-retardant inner layer and heat dissipation holes enhance fire safety. The overall structure balances efficient insulation with convenient maintenance, significantly extending battery life and reducing energy consumption.

[0018] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an intelligent temperature control and insulation cover for batteries provided in this embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the thermal insulation sheet provided in this embodiment of the utility model;

[0021] Figure 3 This is a flowchart illustrating the process of the intelligent temperature control and insulation cover for batteries provided in this embodiment of the present invention.

[0022] Reference numerals: 10-Battery system; 100-Insulation sheet; 110-Outer layer; 120-Insulation layer; 130-Flame-retardant inner layer; 140-Fixing component; 150-Temperature acquisition harness; 160-Heat dissipation hole; 200-Temperature management system. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the following detailed description of an intelligent temperature control and insulation cover for batteries based on this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0024] The foregoing and other technical contents, features, and effects of this utility model will be clearly presented in the following detailed description of the specific embodiments with reference to the accompanying drawings. Through the description of the specific embodiments, a more in-depth and specific understanding can be gained of the technical means and effects adopted by this utility model to achieve the intended purpose. However, the accompanying drawings are only provided for reference and illustration and are not intended to limit the technical solution of this utility model.

[0025] Example 1

[0026] The optimal operating temperature for battery systems in new energy pure electric vehicles is 20–35°C. Extremely cold environments below -35°C can severely reduce battery lifespan, even rendering them unusable and causing vehicle downtime, posing significant safety hazards. Existing fixed insulation structures struggle to balance insulation requirements with ease of daily maintenance, and lack dynamic and precise adjustment, resulting in high energy consumption and slow response. Therefore, this invention provides an intelligent temperature-controlled insulation cover for batteries, such as… Figures 1 to 3 As shown, Figure 1This is a schematic diagram of the structure of an intelligent temperature control and insulation cover for batteries provided in this embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the thermal insulation sheet provided in this embodiment of the utility model; Figure 3 This is a flowchart illustrating the process of the intelligent temperature control and insulation cover for batteries provided in this embodiment of the present invention.

[0027] In this embodiment, the intelligent temperature control insulation cover for the battery includes: multiple insulation sheets 100, each insulation sheet 100 being provided with a fixing component 140, and the multiple insulation sheets 100 being detachably connected to each other through the fixing components 140 to form an integrated heating insulation cover; multiple fixing components 140 are spaced apart on the edges of the insulation sheets 100, and the length of each fixing component 140 is adjustable; the integrated heating insulation cover covers the battery system 10, and at least one insulation sheet 100 is provided with heat dissipation holes 160; each insulation sheet 100 includes: an outer layer 1 10. The insulation layer 120 and the flame-retardant inner layer 130, and the outer layer 110, insulation layer 120 and flame-retardant inner layer 130 are stacked in sequence; the insulation layer 120 has a heating film embedded in it, and multiple temperature sensors are distributed in the insulation layer 120 near the heating film; each insulation piece 100 is connected to multiple temperature acquisition harnesses 150, and each temperature acquisition harness 150 is connected to a temperature sensor and a temperature management system 200 for real-time transmission of battery temperature data; the temperature management system 200 is connected to the heating film and is used to control the heating power of the heating film according to the battery temperature data.

[0028] For example, the outer layer 110 can be composed of fiber cotton and high-strength tear-resistant and high-temperature resistant fabric, which has the characteristics of high strength, wear resistance and not easy to be damaged.

[0029] For example, the flame-retardant inner layer 130 is made of flame-retardant materials, such as organophosphorus organic flame-retardant materials, which can prevent the spread of fire and reduce fire hazards in the event of an accidental fire.

[0030] For example, the fixing component 140 can be elastic straps (such as Velcro straps) or buckles, which can be customized to fit the shape and size of different new energy batteries; its detachable connection method can ensure fit and improve heat preservation effect, while facilitating installation and disassembly, making it suitable for situations that require frequent maintenance or seasonal use scenarios.

[0031] In one optional embodiment, the insulation layer 120 includes a first insulation layer and a second insulation layer, wherein the first insulation layer covers the outside of the heating film and the second insulation layer covers the outside of the first insulation layer.

[0032] For example, the first insulation layer can be a nano-aerogel felt material, and the second insulation layer can be thermal insulation cotton. The nano-aerogel felt material has an extremely high porosity (over 90%) and an extremely low thermal conductivity (0.012-0.029 W / m K). Compared with traditional insulation materials, it can provide several times the insulation effect at the same thickness. It also has low-temperature resistance, can adapt to the complex operating temperature range of the battery, and extend the battery's lifespan.

[0033] For example, the heating film can be a PTC ceramic heating material or a graphene thermal conductive film.

[0034] In one alternative implementation, multiple temperature sensors are distributed, each temperature sensor being connected to one or more temperature acquisition harnesses 150 for real-time transmission of battery temperature data from multiple points.

[0035] In one alternative implementation, multiple temperature sensors are distributed around the perimeter and center of the insulation layer 120.

[0036] For example, the temperature acquisition harness 150 may be made of twisted-pair shielded cable.

[0037] It is understood that the connection between the temperature sensor and the temperature acquisition harness 150 can be one-to-one, many-to-one, or one-to-many, and this embodiment does not impose any restrictions on this.

[0038] It is worth noting that by transmitting current through the temperature acquisition harness 150, the temperature signals collected by the temperature sensors are gathered and accurately and quickly transmitted to the temperature management system 200. Simultaneously, the distributed temperature sensors can monitor temperature differences in different areas from multiple points. This layout effectively avoids blind spots caused by traditional single-point detection, such as localized overheating or undercooling, thus improving the comprehensiveness and accuracy of temperature data. When one temperature sensor fails, the remaining sensors can still provide data, ensuring continuous and reliable system operation. Combined with the temperature management system 200, the distributed temperature sensors can accurately identify temperature gradients and dynamically adjust the power distribution of the heating films. For example, the temperature management system 200 dynamically adjusts the power of each heating film and performs zoned temperature control based on the data differences from each temperature sensor, achieving overall temperature balance in the battery system 10, preventing localized thermal stress damage, extending battery life, and improving safety.

[0039] In an optional implementation, multiple heat-insulating individual sheets 100 are all connected to the battery system 10, and the heating and heat preservation are achieved by being powered by the battery system 10.

[0040] In one optional implementation, the intelligent temperature control insulation cover for the battery also includes a heat dissipation component (not shown in the figure), which is disposed near the heat dissipation hole 160 for active heat dissipation.

[0041] For example, the heat dissipation component can be a rotatable guide vane or turbine fan that can be manually or controlled to be turned on or off, and the guide vane or turbine fan is linked to the temperature management system 200. This embodiment does not limit this.

[0042] In an optional implementation, the heating film is connected to the temperature management system 200 via a CAN bus (Controller Area Network). When the temperature is below the low temperature threshold (e.g., -10°C), heating is started. When the temperature is above the high temperature threshold (e.g., 45°C), an alarm is triggered and the heat dissipation components are activated. The alarm prompts manual or automatic cooling measures to be taken, thus realizing intelligent temperature control.

[0043] The intelligent temperature regulation process of the battery intelligent temperature control insulation cover in this embodiment is as follows: When the battery system 10 is in an extremely cold environment, distributed temperature sensors collect battery temperature data in real time and transmit it to the temperature management system 200 through the temperature acquisition harness 150. The temperature management system 200 determines the current state based on preset low-temperature and high-temperature thresholds. If the temperature is lower than the low-temperature threshold, the temperature management system 200 sends a command to the heating film via the CAN bus to raise the temperature; if the temperature is higher than the high-temperature threshold, the system triggers an audible and visual alarm and activates the heat dissipation components to start active heat dissipation. Throughout the process, the multi-layer structure of the insulation sheet 100 works synergistically: the outer layer 110 provides mechanical protection, the insulation layer 120 reduces heat loss through nano-aerogel felt and heat insulation cotton, and the flame-retardant inner layer 130 prevents the spread of fire at abnormally high temperatures. Through closed-loop control, the temperature dynamic balance of the temperature management system 200 is achieved, ensuring that the battery is always in the optimal operating range.

[0044] It is worth noting that the intelligent temperature control and insulation cover for batteries in this invention enables the battery system 10 to maintain its temperature for an extended period of time by self-discharge heating with a small current during long-term shutdown. For example, in an environment of -30℃, the battery pack takes 5.5 hours to cool from 10℃ to 0℃, which is equivalent to 4.8 kWh / h, with an average power consumption of 0.9 kWh / h. The battery used in heavy-duty trucks (such as urban dump trucks) has a full charge of 295 kWh and 80% charge of 236 kWh. Therefore, it can provide insulation for at least 262 hours, or 10.9 days, in an environment of -30℃.

[0045] This utility model presents an intelligent temperature-controlled insulation cover for batteries. It utilizes detachable multi-layered insulation panels to form an integrated heating and insulation cover. Each insulation panel features a multi-layered composite structure: a wear-resistant outer layer, a heat-insulating middle layer, and a flame-retardant inner layer. Combined with a temperature management system, it effectively solves the problems of poor flexibility and delayed temperature control found in traditional solutions. The insulation cover can adapt to different battery pack shapes and dynamically adjusts the temperature through distributed temperature sensors and a heating film, ensuring stable battery performance in extremely cold environments. Simultaneously, the flame-retardant inner layer and heat dissipation holes enhance fire safety. The overall structure balances efficient insulation with convenient maintenance, significantly extending battery life and reducing energy consumption.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that an article or device comprising a list of elements includes not only those elements but also other elements not expressly listed. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device comprising said element. Terms such as "connected" or "linked" are not limited to physical or mechanical connections but can include electrical connections, whether direct or indirect. The orientations or positional relationships indicated by terms such as "upper," "lower," "left," and "right" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0047] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A battery intelligent temperature control and insulation cover, characterized in that, include: Multiple insulating sheets are provided, each of which is equipped with a fixing component. The multiple insulating sheets are detachably connected to each other through the fixing components to form an integrated heating and insulation cover. Multiple fixing components are spaced apart on the edge of the insulating sheets, and the length of each fixing component is adjustable. The integrated heating and insulation cover covers the battery system, and at least one of the insulating sheets is provided with heat dissipation holes. Each of the aforementioned insulation sheets includes: an outer layer, an insulation layer, and a flame-retardant inner layer, wherein the outer layer, the insulation layer, and the flame-retardant inner layer are stacked sequentially; a heating film is embedded in the insulation layer, and multiple temperature sensors are distributed within the insulation layer near the heating film; Each of the aforementioned insulation sheets is connected to multiple temperature acquisition harnesses, each of which is connected to the temperature sensor and the temperature management system for transmitting battery temperature data in real time. The temperature management system is connected to the heating film and is used to control the heating power of the heating film based on the battery temperature data.

2. The intelligent temperature control and insulation cover for batteries according to claim 1, characterized in that, The fastening component is an elastic strap or a buckle.

3. The intelligent temperature control and insulation cover for batteries according to claim 1, characterized in that, The insulation layer includes a first insulation layer and a second insulation layer, wherein the first insulation layer covers the outside of the heating film, and the second insulation layer covers the outside of the first insulation layer.

4. The intelligent temperature control and insulation cover for batteries according to claim 3, characterized in that, The first insulation layer is made of nano-aerogel felt material, and the second insulation layer is made of heat insulation cotton.

5. The intelligent temperature control and insulation cover for batteries according to claim 1, characterized in that, The heating film is a PTC ceramic heating material or a graphene thermal conductive film.

6. The intelligent temperature control and insulation cover for batteries according to claim 1, characterized in that, Each of the temperature sensors is connected to one or more temperature acquisition harnesses for real-time transmission of battery temperature data from multiple points.

7. The intelligent temperature control and insulation cover for batteries according to claim 6, characterized in that, Multiple temperature sensors are distributed around the perimeter and center of the insulation layer.

8. The intelligent temperature control and insulation cover for batteries according to claim 1, characterized in that, Multiple heat-insulating sheets are connected to the battery system, and heating and heat preservation are achieved by being powered by the battery system.

9. The intelligent temperature control and insulation cover for batteries according to claim 1, characterized in that, It also includes a heat dissipation component, which is disposed near the heat dissipation hole for active heat dissipation.

10. The intelligent temperature control and insulation cover for batteries according to claim 9, characterized in that, The heating film is connected to the temperature management system via a CAN bus. When the temperature is below the low temperature threshold, heating is started. When the temperature is above the high temperature threshold, an alarm is triggered and the heat dissipation component is activated.

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