High-heat-preservation heat insulation plate for battery pack
By designing a high-insulation heat insulation plate in the battery pack, using sensors and cylinders to control the contact between the heat conductor plate and the heat insulation plate, temperature adjustment is achieved, and the problem of battery temperature reduction in low-temperature environments is solved, and the charging and dissipation performance and heat dissipation effect are improved. Make sure the battery works properly in winter.
Patent Information
- Application Number
- CN202411481710.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2024-12-31
AI Technical Summary
In low temperature environments, there is a large temperature difference between the battery pack and the environment, resulting in continuous reduction of the internal temperature of the battery, poor charging and discharging performance, and even inability to charge. Especially in northern regions, pure electric vehicles cannot start or have poor power at night in winter, and traditional insulation structures are improving The thermal insulation also brings the problem of poor heat dissipation performance.
A battery pack high-insulation heat insulation plate is designed, including an external temperature sensor, an internal temperature sensor, a cylinder, a connecting plate, a heat insulation plate base, a heat conductor and an insulation strip. The heat conductor is driven by an inclined overlap and adjustment rack. Contact with the base and cover plate of the insulation board to achieve temperature regulation and heat conduction, and switch the insulation or heat dissipation modes to adapt to different temperature conditions.
It improves the charging and discharging performance of the battery pack, ensures that the battery can be used normally under low temperature conditions, and effectively dissipates heat when needed, enhancing the practicality and safety of the battery pack.
Smart Images
Figure CN119231035A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of new energy batteries, and in particular to a high thermal insulation board for a battery pack. Background Art
[0002] As one of the main power sources for new energy vehicles, batteries are highly sensitive to temperature because of their own material characteristics. If the battery temperature is too high, it will not only reduce the life span, but also cause thermal runaway in serious cases. If the battery temperature is too low, the activity of internal substances will be reduced, and the charging and discharging performance will be poor. Therefore, good thermal management of batteries can not only improve battery performance and ensure the safe use of batteries, but also enhance the power of the entire vehicle and ensure the safety of people and vehicles. It is a key technology for new energy vehicles.
[0003] At present, when the ambient temperature is low, there is a large temperature difference between the battery pack and the environment, and the battery dissipates heat to the external environment, causing the internal temperature of the battery to continue to drop, and the charging and discharging performance is poor, or even unable to charge. This is especially evident in the winter in northern my country. After parking at night, pure electric vehicles cannot start, or have poor power. While the traditional battery insulation structure improves thermal insulation, it also brings about the problem of poor heat dissipation performance of the battery pack when heat dissipation is needed.
[0004] A high thermal insulation board for a battery pack is proposed to solve the above-mentioned problems. Summary of the invention
[0005] The purpose of the present invention is to provide a high thermal insulation board for a battery pack to solve the problem raised in the above background technology that when the ambient temperature is low, there is a large temperature difference between the battery pack and the environment, and the battery dissipates heat to the external environment, resulting in a continuous decrease in the internal temperature of the battery, poor charging and discharging performance, and even inability to charge. This is particularly reflected in the winter in northern my country, when pure electric vehicles cannot be started after parking at night, or have poor power. While the traditional battery insulation structure improves the thermal insulation performance, it also brings about the problem of poor heat dissipation performance of the battery pack when heat dissipation is needed.
[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a high thermal insulation board for a battery pack, comprising an automobile battery;
[0007] An external temperature sensor is fixedly mounted on one side of the automobile battery, an internal temperature sensor is arranged on one side of the external temperature sensor, and a cylinder is arranged on the other side of the automobile battery;
[0008] Also includes:
[0009] The outer side of the automobile battery is fixedly connected with a connecting plate, one side of the connecting plate is fixedly connected with a heat insulation board base, and one side of the heat insulation board base is fixedly connected with a heat insulation board cover plate;
[0010] Among them, one side of the inner wall of the heat insulation board base is rotatably connected to a rotating shaft, and one side of the rotating shaft is fixedly connected to a heat conducting sheet, and the outer side of the heat conducting sheet is sleeved with a heat preservation strip, and one end of the rotating shaft is fixedly connected to a rotating gear;
[0011] One side of the rotating gear is meshedly connected with an adjusting rack, one side of the adjusting rack is slidably connected with a limiting rod, and one side of the limiting rod is provided with a protective plate.
[0012] Preferably, the connecting plate, insulation plate base, insulation plate cover, rotating shaft, heat conducting plate, insulation strip, rotating gear, adjusting rack, cylinder, limit rod and protective plate are symmetrically arranged at the upper and lower ends of the automobile battery to facilitate enhanced insulation and heat conduction of the automobile battery.
[0013] Preferably, the insulation strip is made of polyimide foam material, and the insulation board base and insulation board cover are configured as heat-conducting materials, so as to facilitate heat preservation and heat dissipation of the automobile battery.
[0014] Preferably, one end of the rotating shaft passes through one end of the heat insulation board base and is fixedly connected to the rotating gear, so as to facilitate the positioning of the rotating gear.
[0015] Preferably, the upper and lower ends of the heat conductive sheet are overlapped with the inner walls of the heat insulation board base and the heat insulation board cover respectively, so as to facilitate heat dissipation of the automobile battery.
[0016] Preferably, one end of the adjusting rack is fixedly connected to one end of the cylinder, and the cylinder is fixedly connected to one end of the connecting plate, and the limit rod is fixedly connected to one end of the insulation plate base close to the rotating gear, and the protective plate is fixedly connected to one side of the connecting plate close to the rotating gear, so as to provide power for the rotation of the rotating gear.
[0017] Preferably, the external temperature sensor is fixedly mounted on one side of the protective plate, and the internal temperature sensor is fixedly mounted on the side of the insulation plate base close to the vehicle battery, so as to facilitate the regulation of the insulation and heat dissipation of the vehicle battery.
[0018] Compared with the prior art, the invention has the following beneficial effects: the high thermal insulation board for battery pack achieves the effect of thermal insulation for automobile batteries by overlapping adjacent insulation strips in an inclined manner, thereby improving the charging and discharging performance of automobile batteries, and conducts temperature through the contact between the heat conductive sheet and the insulation board base and the insulation board cover, thereby promoting the heat dissipation effect of automobile batteries, thereby making the high thermal insulation board for battery pack more practical. The specific contents are as follows:
[0019] 1. The high-insulation heat insulation board for the battery pack forms a partition in the middle of the insulation board base by overlapping adjacent insulation strips in an inclined manner, and forms an insulation cavity above and below the insulation strips, thereby achieving the effect of heat preservation of the automobile battery, facilitating the use of the automobile battery in low temperature weather, improving the charging and discharging performance of the automobile battery, and improving the problem of pure electric vehicles being unable to start or having poor power, thereby making the high-insulation heat insulation board for the battery more practical;
[0020] 2. The high thermal insulation board of the battery pack drives the contact between the heat conductive sheet and the insulation board base and the insulation board cover by adjusting the rack through the rotation of the rotating gear, so as to facilitate the temperature conduction through the heat conductive sheet and cooperate with the gap between the vertical insulation strips to promote the heat dissipation effect of the automobile battery, thereby providing insulation effect for the automobile battery while promoting the heat dissipation of the battery, thus making the high thermal insulation board of the battery more practical. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the expanded structure of the heat insulation board base of the present invention;
[0022] Figure 2 It is a schematic diagram of the overall structure of the present invention;
[0023] Figure 3 It is a schematic diagram of the rotating shaft structure of the present invention;
[0024] Figure 4 This is a schematic diagram of the heat dissipation structure of the present invention;
[0025] Figure 5 This is a schematic diagram of the heat preservation structure of the present invention;
[0026] Figure 6 This is a schematic diagram of the structure of the adjusting rack of the present invention.
[0027] In the figure: 1. Car battery; 2. Connecting plate; 3. Heat insulation board base; 4. Heat insulation board cover; 5. Rotating shaft; 6. Heat conducting plate; 7. Insulation strip; 8. Rotating gear; 9. Adjusting rack; 10. Cylinder; 11. Limit rod; 12. Protective plate; 13. External temperature sensor; 14. Internal temperature sensor. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0029] See also Figure 1-Figure 6The present invention provides a technical solution: a high-insulation heat insulation board for a battery pack, comprising a car battery 1; an external temperature sensor 13 is fixedly installed on one side of the car battery 1, and an internal temperature sensor 14 is arranged on one side of the external temperature sensor 13, and a cylinder 10 is arranged on the other side of the car battery 1; it also includes: a connecting plate 2 is fixedly connected to the outer side of the car battery 1, and a heat insulation board base 3 is fixedly connected to one side of the connecting plate 2, and a heat insulation board cover 4 is fixedly connected to one side of the heat insulation board base 3; the insulation strip 7 is made of polyimide foam material, and the heat insulation board base 3 and the heat insulation board cover 4 are set as heat conductive material; the external temperature sensor 13 is fixedly installed on one side of the protective plate 12, and the internal temperature sensor 14 is fixedly installed on the side of the heat insulation board base 3 close to the car battery 1, such as Figure 1 , Figure 2 As shown, through the heat conduction of the insulation board base 3 and the insulation board cover 4, the connectivity between the vehicle battery 1 and the insulation board base 3 is enhanced, so that it is convenient to adjust the insulation and heat dissipation of the vehicle battery 1, and the internal and external temperatures of the battery pack can be identified by the internal temperature sensor 14 and the external temperature sensor 13, so that the high thermal insulation board of the battery pack can be switched between the heat dissipation mode and the heat preservation mode according to the temperatures of the two, thereby making the high thermal insulation board of the battery pack more practical.
[0030] Among them, a rotating shaft 5 is rotatably connected to one side of the inner wall of the heat insulation board base 3, and a heat conducting sheet 6 is fixedly connected to one side of the rotating shaft 5, and an insulation strip 7 is sleeved on the outer side of the heat conducting sheet 6, and one end of the rotating shaft 5 is fixedly connected to a rotating gear 8; one end of the rotating shaft 5 passes through one end of the heat insulation board base 3 and is fixedly connected to the rotating gear 8; the upper and lower ends of the heat conducting sheet 6 are overlapped with the inner walls of the heat insulation board base 3 and the heat insulation board cover 4, respectively, as shown in FIG. Figure 1 , Figure 3-Figure 6 As shown, by setting the heat conductive sheet 6, when the temperature inside the battery pack is higher than its external temperature and the external temperature is lower than the preset temperature, the high thermal insulation board of the battery pack can be switched to the heat dissipation mode, that is, the heat conductive sheet 6 can be abutted against the insulation board base 3 and the insulation board cover 4, and a gap can be formed between the vertical insulation strips 7, so as to enhance the heat conduction to the vehicle battery 1 and enable the heat exchange between the inside and outside temperatures of the battery pack. When the temperature inside the battery pack is lower than its external temperature, the high thermal insulation board of the battery pack can be switched to the insulation mode. At this time, the heat conductive sheet 6 is separated from the insulation board base 3 and the insulation board cover 4, and the inclined insulation strips 7 are overlapped with each other to form a partition layer in the middle of the insulation board base 3, thereby reducing heat loss and achieving the insulation effect on the vehicle battery 1, thereby making the high thermal insulation board of the battery pack more practical.
[0031] Among them, one side of the rotating gear 8 is meshedly connected with an adjusting rack 9, and one side of the adjusting rack 9 is slidably connected with a limiting rod 11, and a protective plate 12 is provided on one side of the limiting rod 11; the connecting plate 2, the heat insulation board base 3, the heat insulation board cover 4, the rotating shaft 5, the heat conducting plate 6, the insulation strip 7, the rotating gear 8, the adjusting rack 9, the cylinder 10, the limiting rod 11 and the protective plate 12 are symmetrically arranged at the upper and lower ends of the automobile battery 1; one end of the adjusting rack 9 is fixedly connected to one end of the cylinder 10, and the cylinder 10 is fixedly connected to one end of the connecting plate 2, and the limiting rod 11 is fixedly connected to one end of the heat insulation board base 3 close to the rotating gear 8, and the protective plate 12 is fixedly connected to one side of the connecting plate 2 close to the rotating gear 8, as shown Figure 3 , Figure 6 As shown, the cylinder 10 is connected with the external temperature sensor 13 and the internal temperature sensor 14 through the existing technology, and the extension and contraction of the cylinder 10 is controlled by the temperature difference between the inside and outside of the battery pack, so that the cylinder 10 drives the extension and contraction of the adjustment rack 9, thereby controlling the rotation of the rotating gear 8 to drive the rotation of the rotating shaft 5, and realizing the adjustment of the position of the heat conducting plate 6 and the insulation strip 7, thereby making the use of the high thermal insulation board of the battery pack more convenient and quick, and thus making the high thermal insulation board of the battery pack more practical.
[0032] Working principle: When using the high-insulation insulation board for the battery pack, first, the insulation board base 3 is installed on the upper and lower ends of the vehicle battery 1 through the connecting plate 2.
[0033] Secondly, under the control of the internal temperature sensor 14 and the external temperature sensor 13, when the internal temperature is higher than the external temperature and the external temperature is lower than the preset temperature, the high thermal insulation board of the battery pack can be switched to the heat dissipation mode. At this time, the cylinder 10 contracts on the inner side of the protective plate 12, so that the adjustment rack 9 slides on the lower end of the limit rod 11, and drives the rotating gear 8 to rotate clockwise, so that the rotating shaft 5 drives the heat conducting plate 6 to overlap with the inner wall of the insulation board base 3 and the insulation board cover 4, and a vertical gap is formed between adjacent insulation strips 7, so as to realize the heat transfer of the automobile battery 1 and the heat exchange of the temperature inside and outside the battery pack.
[0034] Finally, when the internal temperature is lower than the external temperature, the high-insulation insulation board of the battery pack can be switched to the insulation mode. At this time, the cylinder 10 extends on the inner side of the protective plate 12, and the rotating gear 8 rotates counterclockwise, and the heat conductive sheet 6 is separated from the inner wall of the insulation board base 3 and the insulation board cover 4, and the adjacent insulation strips 7 overlap to form an insulation layer to achieve insulation of the vehicle battery 1.
[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A high thermal insulation board for a battery pack, comprising a car battery (1); An external temperature sensor (13) is fixedly mounted on one side of the automobile battery (1), an internal temperature sensor (14) is arranged on one side of the external temperature sensor (13), and a cylinder (10) is arranged on the other side of the automobile battery (1); It is characterized in that Also includes: The outer side of the automobile battery (1) is fixedly connected to a connecting plate (2), one side of the connecting plate (2) is fixedly connected to a heat insulation board base (3), and one side of the heat insulation board base (3) is fixedly connected to a heat insulation board cover plate (4); One side of the inner wall of the heat insulation board base (3) is rotatably connected to a rotating shaft (5), one side of the rotating shaft (5) is fixedly connected to a heat conducting sheet (6), an outer side of the heat conducting sheet (6) is sleeved with a heat preservation strip (7), and one end of the rotating shaft (5) is fixedly connected to a rotating gear (8); One side of the rotating gear (8) is meshingly connected with an adjusting rack (9), and one side of the adjusting rack (9) is slidably connected with a limiting rod (11), and one side of the limiting rod (11) is provided with a protective plate (12).
2. A high thermal insulation board for battery pack according to claim 1, characterized in that: The connecting plate (2), the heat insulation plate base (3), the heat insulation plate cover (4), the rotating shaft (5), the heat conducting plate (6), the heat insulation strip (7), the rotating gear (8), the adjusting rack (9), the cylinder (10), the limiting rod (11) and the protective plate (12) are symmetrically arranged at the upper and lower ends of the automobile battery (1).
3. The high thermal insulation board for battery pack according to claim 1, characterized in that: The heat-insulating strip (7) is made of polyimide foam material, and the heat-insulating board base (3) and the heat-insulating board cover (4) are configured as heat-conducting materials.
4. The high thermal insulation board for battery pack according to claim 1, characterized in that: One end of the rotating shaft (5) passes through one end of the heat insulation board base (3) and is fixedly connected to the rotating gear (8).
5. The high thermal insulation board for battery pack according to claim 1, characterized in that: The upper and lower ends of the heat conducting sheet (6) are overlapped with the inner walls of the heat insulation board base (3) and the heat insulation board cover (4) respectively.
6. The high thermal insulation board for battery pack according to claim 1, characterized in that: One end of the adjusting rack (9) is fixedly connected to one end of the cylinder (10), and the cylinder (10) is fixedly connected to one end of the connecting plate (2), and the limiting rod (11) is fixedly connected to one end of the heat insulation plate base (3) close to the rotating gear (8), and the protective plate (12) is fixedly connected to one side of the connecting plate (2) close to the rotating gear (8).
7. The high thermal insulation board for battery pack according to claim 1, characterized in that: The external temperature sensor (13) is fixedly mounted on one side of the protective plate (12), and the internal temperature sensor (14) is fixedly mounted on one side of the heat insulation plate base (3) close to the automobile battery (1).