Low-temperature self-starting parking battery heating protection structure

Abstract

The utility model discloses a kind of low-temperature self-starting parking battery heating protection structures, including parking battery body, the ring around type heating assembly of parking battery body outside being sleeved and the composite protection component and intelligent control component being wrapped in the ring around type heating assembly outside. Low-temperature heating high-efficiency precision, through graphene partition heating sheet and monomer one-to-one corresponding design, combined-5 ℃ self-starting, 10 ℃ self-stop closed-loop control, can independently adjust monomer temperature control, avoid temperature difference too big battery attenuation, guarantee low-temperature battery capacity and starting performance, protection comprehensive adaptation complex working condition, flexible rubber honeycomb buffer layer shock absorption protects battery, vacuum heat insulation layer and aerogel particle lock heat insulation, metal rustproof shell is equipped with heat dissipation port, dust screen, realize shock, temperature, dust multidimensional protection, intelligent safety is guaranteed, controller is connected ECU collaborative whole vehicle, wireless module remote monitoring, substantially prolong battery life and vehicle convenience.

Description

Technical Field

[0001] This utility model relates to the field of parking battery technology, specifically a low-temperature self-starting parking battery heating and protection structure. Background Technology

[0002] Parking batteries are the core components that ensure vehicle starting and power supply for onboard equipment. However, their performance is easily affected by ambient temperature. Especially in low-temperature environments (such as below -5°C in winter), battery activity is significantly reduced, and problems such as capacity decay and decreased charging and discharging efficiency are likely to occur. In severe cases, it may even prevent the vehicle from starting normally, affecting the convenience of use.

[0003] Existing parking battery heating solutions mostly adopt an integrated heating structure, which cannot achieve precise temperature control for individual battery cells connected in series. This can easily lead to excessive temperature differences between individual cells, accelerating uneven battery degradation and shortening the overall lifespan. Furthermore, the protective structure has a single function, providing only basic mechanical protection. It is difficult to meet the requirements of vibration buffering (vibration during vehicle movement can easily damage battery cells), heat insulation (heat is easily lost during heating, and high external temperatures can easily penetrate when not heating), and dust and water resistance, resulting in insufficient battery reliability under complex operating conditions. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a low-temperature self-starting parking battery heating and protection structure, which can effectively solve the problems mentioned in the background technology.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A low-temperature self-starting parking battery heating and protection structure includes a parking battery body, a surround heating component sleeved on the outside of the parking battery body, a composite protection component wrapped around the surround heating component, and an intelligent control component. The parking battery body is composed of at least two battery cells connected in series. Each battery cell has a thermally conductive silicone layer attached to its outer wall. The surround heating assembly includes a partition heating plate corresponding to each battery cell and a heating wire that connects the partition heating plates in series. The inner side of the partition heating plate is tightly attached to the thermally conductive silicone layer, and the outer side of the partition heating plate is covered with an insulating high-temperature resistant film. The composite protective component comprises, from the inside out, a buffer layer made of elastic rubber, a heat insulation layer, and a protective shell. The protective shell is a one-piece molded metal shell with an anti-rust coating on its inner wall. The intelligent control component is fixed to the outer wall of the protective shell. The intelligent control component includes a controller with a preset target temperature threshold, a temperature sensor, a current sensor, and a relay. The detection end of the temperature sensor penetrates through the buffer layer and the heat insulation layer and contacts the thermally conductive silicone layer.

[0006] As a further description of the above technical solution, the controller is connected to the temperature sensor, the current sensor and the relay signal respectively, and the controller is also connected to the vehicle ECU via the CAN bus.

[0007] As a further description of the above technical solution, the partitioned heating element is a graphene heating element, the current sensor is connected in series in the heating wire circuit, and the relay is electrically connected to the power input terminal of the heating wire.

[0008] As a further description of the above technical solution, the buffer layer has a honeycomb-shaped buffer cavity inside, the heat insulation layer is a vacuum heat insulation board structure, the honeycomb-shaped buffer cavity of the buffer layer is filled with aerogel particles with a particle size of 0.5-1mm, and the buffer layer and the heat insulation layer are bonded and fixed together, and the heat insulation layer and the protective shell are detachably connected by bolts.

[0009] As a further description of the above technical solution, heat dissipation vents are provided on both sides of the protective shell, and dustproof meshes are installed inside the heat dissipation vents.

[0010] As a further description of the above technical solution, the intelligent control component also includes a backup power supply, which is electrically connected to the controller and the relay. The controller also integrates a wireless communication module, which can be connected to a mobile terminal.

[0011] As a further description of the above technical solution, the outer layer of the heating wire is wrapped with a flame-retardant braided sleeve made of glass fiber, and a sealing ring is provided between the heating wire and the wire hole of the protective shell.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The present invention provides a low-temperature self-starting parking battery heating and protection structure, which has at least one of the following beneficial effects during use: Firstly, it offers efficient and precise low-temperature heating. Through a graphene-based partitioned heating element design with one-to-one correspondence between the heating element and the individual cells, combined with a closed-loop control system that automatically starts at -5℃ and stops at 10℃, it can independently adjust the temperature of each cell, preventing excessive temperature differences from causing battery degradation and ensuring battery capacity and starting performance at low temperatures. Secondly, it provides comprehensive protection to adapt to complex operating conditions. An elastic rubber honeycomb buffer layer absorbs shock and protects the battery, while a vacuum insulation layer and aerogel particles lock in heat and provide insulation. A rust-proof metal shell with heat dissipation vents and a dustproof mesh provides multi-dimensional protection against vibration, temperature, and dust. Thirdly, it offers intelligent and reliable safety. The controller connects to the ECU to coordinate with the entire vehicle, a wireless module provides remote monitoring, a backup power supply provides over 2 hours of battery life after power failure, triple electrical protection and current alarms prevent short circuits and leakage, and the bolted connection of the insulation layer facilitates maintenance and reduces costs, significantly extending battery life and improving vehicle usability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the first overall structure of a low-temperature self-starting parking battery heating and protection structure according to the present invention. Figure 2 This is a schematic diagram of the second overall structure of a low-temperature self-starting parking battery heating and protection structure according to the present invention. Figure 3 This is a top view of the second overall structure of the low-temperature self-starting parking battery heating and protection structure of this utility model; Figure 4 This is a side perspective view of a low-temperature self-starting parking battery heating and protection structure according to the present invention. Figure 5 This is a partial side perspective view of a low-temperature self-starting parking battery heating and protection structure according to the present invention.

[0014] Numbering on the map: 1. Parking battery body; 101. Intelligent control component; 102. Heat dissipation vent; 103. Controller; 104. Temperature sensor; 105. Relay; 106. Backup power supply; 107. Bolt; 2. Composite protection component; 201. Buffer layer; 202. Heat insulation layer; 203. Protective shell; 3. Battery cell; 301. Surround heating component; 302. Zoned heating element; 303. Heating wire; 304. Thermally conductive silicone layer. Detailed Implementation

[0015] 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.

[0016] like Figure 1-5 As shown, this utility model provides a low-temperature self-starting parking battery heating and protection structure, including a parking battery body 1, a surrounding heating component 301 sleeved on the outside of the parking battery body 1, a composite protection component 2 wrapped around the surrounding heating component 301, and an intelligent control component 101.

[0017] The parking battery body 1 is composed of at least two battery cells 3 connected in series. Each battery cell 3 has a thermally conductive silicone layer 304 attached to its outer wall. The surround heating assembly 301 includes a partition heating plate 302 corresponding to each battery cell 3, and a heating wire 303 connecting each partition heating plate 302 in series. The inner side of the partition heating plate 302 is tightly attached to the thermally conductive silicone layer 304, and the outer side of the partition heating plate 302 is covered with an insulating high-temperature resistant film.

[0018] The composite protective component 2 includes, from the inside out, a buffer layer 201 made of elastic rubber, a heat insulation layer 202, and a protective shell 203. The protective shell 203 is an integrally formed metal shell with an anti-rust coating on its inner wall. The intelligent control component 101 is fixed to the outer wall of the protective shell 203. The intelligent control component 101 includes a controller 103 with a preset target temperature threshold, a temperature sensor 104, a current sensor, and a relay 105. The detection end of the temperature sensor 104 penetrates through the buffer layer 201 and the heat insulation layer 202 and contacts the thermally conductive silicone layer 304.

[0019] During the heating process, the "vacuum insulation layer 202 + buffer layer 201 honeycomb cavity aerogel particles (0.5-1mm)" of the composite protection component 2 form a double heat insulation barrier, reducing the loss of heating heat to the outside and improving heating efficiency; during the non-heating stage, it can isolate the external high temperature and protect the battery.

[0020] The elastic rubber buffer layer 201 absorbs vibrations during vehicle operation through a honeycomb structure, preventing damage to the battery cells 3; the one-piece molded metal protective shell 203 (with an anti-rust coating on the inner wall) provides mechanical protection, the heat dissipation vents 102 on both sides assist in heat dissipation when the battery temperature is abnormal, and the dustproof net prevents dust from entering the component.

[0021] If the current sensor detects that the heating circuit current exceeds the safe range (e.g., a short circuit causing a sudden increase in current), the controller 103 immediately triggers an alarm, sending an "abnormal current alarm message" to the mobile terminal via the wireless communication module. Simultaneously, it disconnects the relay 105, stopping the heating process. When the vehicle's main power supply fails, the backup power supply 106 automatically switches to power the controller 103, relay 105, and the surround heating assembly 301 (for ≥2 hours), ensuring continuous battery heating in low-temperature environments and preventing heating interruption due to power failure. The wireless communication module integrated in the controller 103 can connect to the mobile terminal, sending real-time battery temperature data and heating assembly operating status (e.g., "heating in progress / stopped"), allowing users to remotely view the battery status and promptly address any abnormalities.

[0022] In this embodiment, the temperature sensor 104 penetrates the composite protective assembly 2 and directly contacts the thermally conductive silicone layer 304 on the outer wall of the battery cell 3 (the thermally conductive silicone layer 304 ensures accurate temperature conduction). It collects the temperature data of each battery cell 3 in real time and transmits it to the controller 103. A current sensor is connected in series in the heating wire 303 circuit to monitor the operating current of the heating assembly in real time, preventing overload or short circuit. The controller 103 synchronously detects the vehicle's main power status to prepare for the switchover of the backup power supply 106; simultaneously, it communicates with the vehicle ECU via the CAN bus to synchronize data such as battery temperature and heating status, achieving vehicle-wide coordination.

[0023] When the controller 103 receives data from the temperature sensor 104 indicating a temperature of ≤-5℃ (preset threshold), it determines that the battery is in a low-temperature state (requiring heating to ensure performance) and immediately sends a "closing command" to the relay 105. After the relay 105 closes, the heating wire 303 circuit is energized, and the surround heating assembly 301 is activated (the outer layer of the heating wire 303 is a glass fiber flame-retardant braided sleeve to prevent short circuits and fires, and the sealing ring of the wire hole prevents water and dust ingress). Because the heating assembly is designed as "zoned heating elements 302 (graphene material) + series wires", and each zoned heating element 302 corresponds one-to-one with a battery cell 3, the controller 103 can independently adjust the power of the corresponding heating element of a single battery cell 3 based on the temperature data of that cell (e.g., if the temperature of a cell is lower than the target threshold, while others meet the standard), achieving precise temperature control by "supplementing where needed" and avoiding local overheating or insufficient heating. When the temperature sensor 104 detects that the temperature of the thermally conductive silicone layer 304 is ≥10℃ (preset stop threshold), the controller 103 determines that the battery temperature has returned to the normal operating range and immediately sends a "disconnect command". The relay 105 disconnects the heating wire 303 circuit, and the surround heating component 301 stops working to avoid energy waste and high temperature damage to the battery.

[0024] Furthermore, the controller 103 is connected to the temperature sensor 104, the current sensor, and the relay 105, respectively, and also communicates with the vehicle ECU via a CAN bus. The controller 103 communicates with the vehicle ECU via the CAN bus to achieve coordinated "battery status-vehicle control" (e.g., prioritizing battery temperature during startup); the mobile terminal remote monitoring function allows users to easily monitor the battery status in real time, improving ease of use.

[0025] When the temperature sensor 104 detects that the temperature of the thermally conductive silicone layer 304 is below -5°C, the controller 103 controls the relay 105 to close, and the surround heating assembly 301 starts to heat the parking battery body 1; when the temperature sensor 104 detects that the temperature is above 10°C, the controller 103 controls the relay 105 to open, and the surround heating assembly 301 stops heating.

[0026] Through closed-loop control of "self-start heating at -5℃ and automatic shutdown at 10℃", the battery is ensured to maintain a suitable operating temperature in low-temperature environments (such as after parking in winter), avoiding capacity decay and reduced charging and discharging efficiency caused by low temperature, and ensuring normal vehicle start-up.

[0027] Furthermore, the partitioned heating element 302 is a graphene heating element, the current sensor is connected in series in the heating wire 303 circuit, and the relay 105 is electrically connected to the power input terminal of the heating wire 303. The power of each partitioned heating element 302 is independently adjustable. The controller 103 has preset target temperature thresholds for each of the battery cells 3. When the temperature sensor 104 corresponding to any battery cell 3 detects a temperature lower than the target temperature threshold, the controller 103 adjusts the power of the partitioned heating element 302 corresponding to that battery cell 3 individually.

[0028] Furthermore, the buffer layer 201 has a honeycomb-shaped buffer cavity inside, the heat insulation layer 202 is a vacuum heat insulation board structure, the honeycomb-shaped buffer cavity of the buffer layer 201 is filled with aerogel particles with a particle size of 0.5-1mm, and the buffer layer 201 and the heat insulation layer 202 are bonded and fixed together, and the heat insulation layer 202 and the protective shell 203 are detachably connected by bolts 107.

[0029] The thermally conductive silicone layer 304 ensures accurate temperature transfer from the battery to the sensor and heating element, reducing heat loss. A dual thermal barrier (vacuum insulation layer 202 + aerogel buffer layer 201) minimizes heat loss, significantly improving heating efficiency. The buffer layer 201 absorbs vibrations (suitable for vehicle driving conditions), the insulation layer 202 combines heat preservation and temperature insulation (suitable for high and low temperature environments), and the heat dissipation vent 102 assists in cooling (suitable for high-temperature conditions), achieving multi-dimensional protection against vibration, temperature, and dust, making it suitable for complex driving environments.

[0030] The heat insulation layer 202 and the protective shell 203 are detachably connected by bolts 107, which facilitates the later inspection and maintenance of the heating components and battery cells 3 and reduces maintenance costs.

[0031] Furthermore, both side walls of the protective housing 203 are provided with heat dissipation vents 102, and dustproof meshes are installed inside the heat dissipation vents. The metal protective housing 203 (rust-proof + mechanical protection) and the dustproof meshes further reduce the risk of damage to the components from the external environment.

[0032] Furthermore, the intelligent control component 101 also includes a backup power supply 106, which is electrically connected to the controller 103 and the relay 105. The controller 103 also integrates a wireless communication module, which can connect to a mobile terminal. When the vehicle's main power supply fails, the backup power supply 106 provides continuous power to the intelligent control component 101 and the surround heating component 301 for at least 2 hours. The wireless communication module is used to send temperature data of the parking battery body 1, operating status data of the surround heating component 301, and current abnormality alarm information to the mobile terminal. The current sensor monitors the circuit current in real time, the wireless communication module promptly sends abnormality alarms, and the controller 103 quickly disconnects the relay 105 to prevent component damage caused by overload or short circuit.

[0033] Furthermore, the heating wire 303 is wrapped with a flame-retardant braided sleeve made of fiberglass, and a sealing ring is provided between the heating wire 303 and the wire hole of the protective shell 203. The flame-retardant braided sleeve of the heating wire 303 (fire prevention), the high-temperature insulating film on the outside of the partitioned heating element 302 (leakage prevention), and the sealing ring of the wire hole (water prevention) form a triple protection of "flame retardancy + insulation + sealing" to avoid the risk of electrical short circuits and leakage. The partitioned graphene heating element (independently adjustable power) precisely controls the temperature of each battery cell 3, avoiding the problem of "large temperature difference between cells" caused by traditional overall heating, reducing battery degradation caused by uneven cell temperature, and extending the overall battery life.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A low-temperature self-starting parking battery heating protection structure, characterized in that: It includes the parking battery body, a surround heating assembly fitted on the outside of the parking battery body, a composite protective assembly and an intelligent control assembly wrapped around the surround heating assembly. The parking battery body is composed of at least two battery cells connected in series. Each battery cell has a thermally conductive silicone layer attached to its outer wall. The surround heating assembly includes a partition heating plate corresponding to each battery cell and a heating wire that connects the partition heating plates in series. The inner side of the partition heating plate is tightly attached to the thermally conductive silicone layer, and the outer side of the partition heating plate is covered with an insulating high-temperature resistant film. The composite protective component comprises, from the inside out, a buffer layer made of elastic rubber, a heat insulation layer, and a protective shell. The protective shell is a one-piece molded metal shell with an anti-rust coating on its inner wall. The intelligent control component is fixed to the outer wall of the protective shell. The intelligent control component includes a controller with a preset target temperature threshold, a temperature sensor, a current sensor, and a relay. The detection end of the temperature sensor penetrates through the buffer layer and the heat insulation layer and contacts the thermally conductive silicone layer.

2. The low-temperature self-starting parking battery heating protection structure according to claim 1, characterized in that: The controller is connected to the temperature sensor, current sensor and relay signal respectively, and the controller is also connected to the vehicle ECU via CAN bus.

3. The low-temperature self-starting parking battery heating protection structure according to claim 1, characterized in that: The partitioned heating element is a graphene heating element, the current sensor is connected in series in the heating wire circuit, and the relay is electrically connected to the power input terminal of the heating wire.

4. The low-temperature self-starting parking battery heating protection structure according to claim 1, characterized in that: The buffer layer has a honeycomb-shaped buffer cavity inside, the heat insulation layer is a vacuum heat insulation board structure, the honeycomb-shaped buffer cavity of the buffer layer is filled with aerogel particles with a particle size of 0.5-1mm, and the buffer layer and the heat insulation layer are bonded and fixed together, and the heat insulation layer and the protective shell are detachably connected by bolts.

5. The low-temperature self-starting parking battery heating protection structure according to claim 1, characterized in that: Both sides of the protective shell are provided with heat dissipation vents, and dustproof meshes are installed inside the heat dissipation vents.

6. The low-temperature self-starting parking battery heating protection structure according to claim 1, characterized in that: The intelligent control component also includes a backup power supply, which is electrically connected to the controller and the relay. The controller also integrates a wireless communication module, which can be connected to a mobile terminal.

7. The low-temperature self-starting parking battery heating protection structure according to claim 1, characterized in that: The heating wire is wrapped with a flame-retardant braided sheath made of fiberglass, and a sealing ring is provided between the heating wire and the wire hole of the protective shell.

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