Lithium battery protection device with temperature monitoring function

By designing a lithium battery protection device with temperature monitoring and dustproof functions, the problem of the lack of temperature monitoring in the lithium battery protective casing was solved, realizing real-time temperature control and safety protection of the lithium battery, extending battery life, and ensuring safe use.

CN224005926UActive Publication Date: 2026-03-17XI'AN POLYTECHNIC UNIVERSITY
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Patent Information

Application Number
CN202520505029.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-03-17
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

Most existing lithium battery protective casings do not have temperature monitoring functions, which makes lithium batteries prone to spontaneous combustion and short circuits in high-temperature environments, affecting their performance and lifespan.

Method used

A lithium battery protection device with temperature monitoring function was designed, including a housing, a temperature sensor, a wireless transmitter, a cooling fan, and a dustproof mechanism. The temperature sensor monitors the lithium battery temperature in real time, automatically adjusts the cooling fan operation, sends alarm signals, and the dustproof mechanism prevents dust and moisture from entering, ensuring that the lithium battery operates within a suitable temperature range.

Benefits of technology

It enables real-time monitoring and control of lithium battery temperature, preventing spontaneous combustion and short circuit risks, extending battery life, ensuring safe use, and keeping battery components clean to prevent contamination.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is suitable for the technical field of lithium batteries, and provides a lithium battery protection device with a temperature monitoring function, which comprises a box body and a support net fixedly arranged in the box body, the temperature sensor and the wireless transmitter are fixedly arranged in the box body; the mounting box is arranged at the bottom of the box body, and the mounting box is communicated with the box body; the partition plate is fixedly mounted in the mounting box; the group of cooling fans are detachably mounted in the mounting box; the group of heat dissipation openings are respectively formed in the box body and the mounting box; and the dustproof mechanism is arranged on the box body and the mounting box and is used for preventing dust of the heat dissipation opening. The lithium battery protection device with the temperature monitoring function has the advantages that the working temperature of the lithium battery can be monitored in real time, so that the risks of spontaneous combustion, short circuit and the like of the lithium battery caused by high temperature can be prevented, and the use safety is guaranteed.
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Description

Technical Field

[0001] This utility model belongs to the field of lithium battery technology, and in particular relates to a lithium battery protection device with temperature monitoring function. Background Technology

[0002] With the development of microelectronics technology at the end of the 20th century, miniaturized devices have become increasingly common, placing high demands on power supplies. As a result, lithium batteries have entered a stage of large-scale practical application, and battery packs have emerged. Battery packs are widely used in our lives. Series battery packs are found in TV remote controls, electronic toys, and flashlights. Lithium battery packs are also installed in some vehicles and electric vehicles. When lithium batteries are put into use, a protective casing must be installed on the lithium battery to prevent accidental wear and tear during use.

[0003] Most current protective cases do not have temperature monitoring functions for lithium batteries. As a result, when lithium batteries overheat, people cannot know in time. Since lithium batteries are prone to spontaneous combustion and short circuits in high-temperature environments, this will affect the performance and lifespan of the lithium batteries. Utility Model Content

[0004] This invention provides a lithium battery protection device with temperature monitoring function, aiming to solve the problem mentioned in the background art that most of the protective shells currently used do not have temperature monitoring function.

[0005] To solve the above problems, this utility model is implemented as follows: a lithium battery protection device with temperature monitoring function, comprising: a housing and a support mesh fixedly installed inside the housing; a temperature sensor and a wireless transmitter fixedly installed inside the housing; a mounting box located at the bottom of the housing, the mounting box being connected to the housing; a partition fixedly installed inside the mounting box; a set of cooling fans detachably installed inside the mounting box; a set of heat dissipation vents respectively opened on the housing and the mounting box; and a dustproof mechanism provided on the housing and the mounting box for dust prevention of the heat dissipation vents.

[0006] Preferably, the dustproof mechanism includes: a set of limiting plates fixedly installed on one side of the housing and the mounting box, the set of limiting plates being located on one side of the set of heat dissipation vents; a set of waterproof and breathable membranes respectively disposed within the set of heat dissipation vents; and a clamping plate respectively hinged to one side of the housing and the mounting box, the clamping plate being in rotatable contact with the waterproof and breathable membrane.

[0007] Preferably, a sealing ring is fitted inside the heat dissipation vent, and the sealing ring is in close contact with the waterproof and breathable membrane. A limit frame is rotatably installed on one side of both the housing and the mounting box, and the output rods of a set of limit frames are rotatably connected to a set of clamping plates.

[0008] Preferably, an operating opening is provided on one side of the box body, and a box door is hinged inside the operating opening. A locking block is rotatably installed on one side of the box body, and the locking block rotatably contacts the box door.

[0009] Preferably, a T-shaped groove is provided at the bottom of the box, and a T-shaped plate is fixedly installed on the top of the mounting box, with the T-shaped plate slidably connected to the T-shaped groove.

[0010] Preferably, a fixing plate is fixedly installed on one side of the inner wall of the box, and a positioning rod is slidably installed on the fixing plate. The positioning rod is slidably connected to the box and the T-shaped plate. A compression spring and a baffle are sleeved on the positioning rod, and the two ends of the compression spring are fixedly connected to the fixing plate and the baffle, respectively.

[0011] Preferably, an inclined plate is fixedly installed on one side of the box, the inclined plate is in rotatable contact with the locking block, and the temperature sensor is located at the center of the box.

[0012] Compared with related technologies, the lithium battery protection device with temperature monitoring function provided by this utility model has the following beneficial effects:

[0013] 1. The operating temperature of the lithium battery is monitored in real time by a temperature sensor. Once the temperature exceeds the preset safety threshold, the wireless transmitter immediately sends an alarm signal to the user's device (such as a mobile phone or computer), so that the user can be informed in time and take corresponding measures. This effectively prevents the risk of lithium battery spontaneous combustion and short circuit caused by high temperature, ensuring safe use. At the same time, the cooling fan is automatically adjusted to work or stop according to the feedback of the temperature sensor, effectively dissipating heat from the box and maintaining the lithium battery in the most suitable temperature range, thus extending battery life. The waterproof and breathable membrane is limited by the clamping plate and the limiting plate, which ensures that the waterproof and breathable membrane will not fall off the heat dissipation port. The limiting effect is good, and it also facilitates the quick installation and removal of the waterproof and breathable membrane.

[0014] 2. The gaps in the waterproof and breathable membrane and the heat dissipation vents are sealed by a sealing ring, which ensures that moisture and dust will not enter the cabinet and mounting box through the heat dissipation vents. The sealing effect is good. The door is limited by a locking block to ensure that the door will not detach from the operating opening, which is beneficial for the protection of the lithium battery. The mounting box is quickly assembled by sliding connection of T-shaped plate and T-shaped groove, which has high assembly efficiency.

[0015] 3. By operating the positioning rod, the connection between the T-shaped plate and the housing can be locked or unlocked. When it is necessary to install or remove the mounting box, simply move the positioning rod to one side, and the locking relationship between the positioning rod and the T-shaped plate will be released. This allows the mounting box to be easily slid out or put into the housing. The temperature sensor is located in the center of the housing, which can more accurately measure the temperature environment around the lithium battery. This is crucial for protecting the lithium battery from excessively high or low temperatures, as extreme temperatures may cause the lithium battery performance to degrade or be damaged.

[0016] Compared with existing technologies, the lithium battery protection device with temperature monitoring function provided in this solution can monitor the operating temperature of the lithium battery in real time, which helps to prevent risks such as spontaneous combustion and short circuit caused by high temperature, and ensures safe use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of a lithium battery protection device with temperature monitoring function provided by this utility model;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of a lithium battery protection device with temperature monitoring function provided by this utility model;

[0019] Figure 3 This is a side view of a lithium battery protection device with temperature monitoring function provided by this utility model;

[0020] Figure 4 This is a side cross-sectional view of a lithium battery protection device with temperature monitoring function provided by this utility model;

[0021] Figure 5 for Figure 2 An enlarged structural diagram of part A shown in the figure;

[0022] Figure 6 for Figure 2 The diagram shows an enlarged view of part B.

[0023] Reference numerals in the attached diagram: 1. Cabinet; 2. Support mesh; 3. Temperature sensor; 4. Wireless transmitter; 5. Mounting box; 6. Partition; 7. Cooling fan; 8. Vent; 9. Limiting plate; 10. Waterproof and breathable membrane; 11. Sealing ring; 12. Clamping plate; 13. Limiting frame; 14. Cabinet door; 15. Clamping block; 16. T-shaped plate; 17. Fixing plate; 18. Positioning rod; 19. Compression spring. Detailed Implementation

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] This utility model embodiment provides a lithium battery protection device with temperature monitoring function, such as Figure 1-6 As shown, the lithium battery protection device with temperature monitoring function includes: a housing 1 and a support mesh 2 fixedly installed inside the housing 1; a temperature sensor 3 and a wireless transmitter 4 fixedly installed inside the housing 1; a mounting box 5 located at the bottom of the housing 1, the mounting box 5 being connected to the housing 1; a partition 6 fixedly installed inside the mounting box 5; a set of cooling fans 7 detachably installed inside the mounting box 5; a set of heat dissipation vents 8 respectively opened on the housing 1 and the mounting box 5; and a dustproof mechanism provided on the housing 1 and the mounting box 5 for dustproofing the heat dissipation vents 8.

[0027] In this embodiment, the mounting box 5 is located at the bottom of the housing 1 and is connected to the housing 1 to form an independent heat dissipation channel. The partition 6 divides the interior of the mounting box 5 to optimize the airflow path. A set of cooling fans 7 can be detachably installed in the mounting box 5 and automatically adjusts to work or stop according to the feedback of the temperature sensor 3, effectively dissipating the heat inside the housing 1, maintaining the lithium battery in the most suitable temperature range, and extending the battery life. At the same time, the setting of the support net 2 also facilitates air circulation, which is beneficial to improving the heat dissipation of the lithium battery.

[0028] Vent 8 and Dustproof Mechanism: A set of vents 8 on the housing 1 and mounting box 5 promotes air circulation and improves heat dissipation efficiency. Simultaneously, the dustproof mechanism effectively prevents external dust from entering, keeping the battery and internal components clean, further protecting the lithium battery from contamination, and ensuring its long-term stable operation. Temperature sensor 3 monitors the lithium battery's operating temperature in real time. Once the temperature exceeds a preset safety threshold, the wireless transmitter 4 immediately sends an alarm signal to the user's device (such as a mobile phone or computer), allowing the user to be promptly informed and take appropriate measures. This effectively prevents risks such as lithium battery spontaneous combustion and short circuits caused by high temperatures, ensuring safe use. Furthermore, based on feedback from temperature sensor 3, the cooling fan 7 automatically adjusts its operation or stops, effectively dissipating heat from inside the housing 1, maintaining the lithium battery within its optimal temperature range, and extending battery life.

[0029] In a further preferred embodiment of the present invention, the dustproof mechanism includes: a set of limiting plates 9 respectively fixedly installed on one side of the housing 1 and the mounting box 5, the set of limiting plates 9 being located on one side of the set of heat dissipation vents 8; a set of waterproof and breathable membranes 10 respectively disposed in the set of heat dissipation vents 8; and a clamping plate 12 respectively hinged to one side of the housing 1 and the mounting box 5, the clamping plate 12 being in rotatable contact with the waterproof and breathable membrane 10.

[0030] In this embodiment, the card plate 12 is hinged to one side of the housing 1 and the mounting box 5 respectively, and rotates in contact with the waterproof and breathable membrane 10. This design allows the card plate 12 to be easily opened or closed, making it convenient for users to replace or clean the waterproof and breathable membrane 10. When it is necessary to replace or clean the waterproof and breathable membrane 10, the user only needs to open the card plate 12 and take out the waterproof and breathable membrane 10 for replacement or cleaning. The operation is simple and convenient. The card plate 12 and the limiting plate 9 limit the waterproof and breathable membrane 10, thereby ensuring that the waterproof and breathable membrane 10 will not fall off the heat dissipation port 8. The limiting effect is good, and it is also convenient to quickly install and remove the waterproof and breathable membrane 10.

[0031] In a further preferred embodiment of this utility model, a sealing ring 11 is installed inside the heat dissipation port 8, and the sealing ring 11 is in close contact with the waterproof and breathable membrane 10. A limit frame 13 is rotatably installed on one side of both the box body 1 and the mounting box 5, and the output rods of a set of limit frames 13 are rotatably connected to a set of clamping plates 12 respectively.

[0032] In this embodiment, the sealing ring 11 ensures the airtightness between the waterproof and breathable membrane 10 and the heat dissipation vent 8, effectively preventing external dust, moisture, and other impurities from entering the housing 1 through gaps, further improving the protection level of the lithium battery and its internal components. At the same time, the limiting bracket 13 also provides support and positioning for the card plate 12, making it more convenient and quick for users to replace or clean the waterproof and breathable membrane 10. The sealing ring 11 seals the gap between the waterproof and breathable membrane 10 and the heat dissipation vent 8, thereby ensuring that moisture and dust will not enter the housing 1 and the mounting box 5 through the heat dissipation vent 8, resulting in a good sealing effect.

[0033] In a further preferred embodiment of the present invention, an operating port is provided on one side of the box body 1, and a box door 14 is hinged in the operating port. A locking block 15 is rotatably installed on one side of the box body 1, and the locking block 15 is in rotatable contact with the box door 14.

[0034] In this embodiment, the door 14 is limited by the locking block 15 to ensure that the door 14 will not come off the operating port, which is beneficial for the protection of the lithium battery.

[0035] In a further preferred embodiment of the present invention, a T-shaped groove is provided at the bottom of the box 1, and a T-shaped plate 16 is fixedly installed on the top of the mounting box 5, and the T-shaped plate 16 is slidably connected to the T-shaped groove.

[0036] In this embodiment, the T-shaped plate 16 and the T-shaped groove are slidably connected, thereby enabling rapid assembly of the mounting box 5 with high assembly efficiency.

[0037] In a further preferred embodiment of the present invention, a fixing plate 17 is fixedly installed on one side of the inner wall of the box 1, and a positioning rod 18 is slidably installed on the fixing plate 17. The positioning rod 18 is slidably connected to the box 1 and the T-shaped plate 16. A compression spring 19 and a baffle are sleeved on the positioning rod 18, and the two ends of the compression spring 19 are fixedly connected to the fixing plate 17 and the baffle respectively.

[0038] In this embodiment, the compression spring 19 provides continuous elastic force, enabling the positioning rod 18 to remain in a stable position when not subjected to external force, and ensuring that it can continuously and effectively provide elastic force. By operating the positioning rod 18, the connection between the T-shaped plate 16 and the housing 1 can be locked or unlocked. When it is necessary to install or remove the mounting box 5, simply move the positioning rod 18 to one side, and the locking relationship between the positioning rod 18 and the T-shaped plate 16 will be released, so that the mounting box 5 can be easily slid out of or into the housing 1.

[0039] In a further preferred embodiment of the present invention, an inclined plate is fixedly installed on one side of the housing 1, the inclined plate is in rotatable contact with the card block 15, and the temperature sensor 3 is located at the center position inside the housing 1.

[0040] In this embodiment, the temperature sensor 3 is located at the center of the housing 1, which can more accurately measure the temperature environment around the lithium battery. This is crucial for protecting the lithium battery from excessively high or low temperatures, as extreme temperatures can cause the lithium battery to degrade or be damaged.

[0041] In summary, compared with related technologies, this device can monitor the operating temperature of lithium batteries in real time, which helps to prevent risks such as spontaneous combustion and short circuits caused by high temperatures, thus ensuring safe use.

[0042] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A lithium battery protection device having a temperature monitoring function, characterized by, include: The housing and the support mesh fixedly installed inside the housing; A temperature sensor and a wireless transmitter are fixedly installed inside the enclosure; A mounting box is located at the bottom of the housing, and the mounting box is connected to the housing. A partition that is fixedly installed inside the mounting box; A set of cooling fans that can be detachably installed inside the mounting box; A set of heat dissipation vents are respectively opened on the enclosure and the mounting box; A dustproof mechanism for preventing dust from the heat dissipation vents is provided on the enclosure and mounting box.

2. The lithium battery protection device with temperature monitoring function according to claim 1, characterized in that, The dustproof mechanism includes: A set of limiting plates are fixedly installed on one side of the enclosure and the mounting box, respectively, and the set of limiting plates are located on one side of the set of heat dissipation vents; A set of waterproof and breathable membranes are respectively disposed in a set of the heat dissipation vents; The card plates are respectively hinged to one side of the box and the mounting box, and the card plates are in rotatable contact with the waterproof and breathable membrane.

3. The lithium battery protection device with temperature monitoring function according to claim 2, wherein, A sealing ring is installed inside the heat dissipation vent, and the sealing ring is in close contact with the waterproof and breathable membrane. A limit frame is rotatably installed on one side of the box and the mounting box, and the output rod of a set of limit frames is rotatably connected to a set of the clamping plates.

4. The lithium battery protection device with temperature monitoring function according to claim 1, wherein, An operating port is provided on one side of the box, and a box door is hinged inside the operating port. A locking block is rotatably installed on one side of the box, and the locking block rotatably contacts the box door.

5. The lithium battery protection device with temperature monitoring function according to claim 4, wherein, The bottom of the box is provided with a T-shaped groove, and a T-shaped plate is fixedly installed on the top of the mounting box. The T-shaped plate is slidably connected to the T-shaped groove.

6. The lithium battery protection device with temperature monitoring function according to claim 1, wherein, A fixing plate is fixedly installed on one side of the inner wall of the box. A positioning rod is slidably installed on the fixing plate. The positioning rod is slidably connected to the box and the T-shaped plate. A compression spring and a baffle are sleeved on the positioning rod. The two ends of the compression spring are fixedly connected to the fixing plate and the baffle, respectively.

7. The lithium battery protection device with temperature monitoring function according to claim 4, wherein the temperature sensor is a thermistor. An inclined plate is fixedly installed on one side of the box, and the inclined plate is in rotatable contact with the locking block. The temperature sensor is located at the center of the box.