New energy lithium battery cover plate
By integrating aluminum alloy materials, thermal copper sheets and thermal oil cooling systems on the cover of new energy lithium battery, the problem of heat accumulation of lithium batteries is solved, temperature control and safety improvement is achieved, and the normal use and safety of lithium batteries are ensured. sex.
Patent Information
- Application Number
- CN202420843449.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-23
AI Technical Summary
During use, new energy lithium batteries are prone to excessive temperatures due to heat accumulation, damage, which affects safety and use effect.
A new energy lithium battery cover plate is designed, using aluminum alloy material, integrated heat dissipation protection components, including thermal copper sheets and thermal oil cooling system, which reduces the temperature through the ventilation chamber and cooling chamber, and monitors the thermal oil state through the liquid level sensor. Ensure sealing and safety.
Effectively reduce the temperature of lithium batteries, prevent overheating and damage, while maintaining energy storage effect in low-temperature environments, improving structural strength and sealing, and ensuring safe use.
Smart Images
Figure CN222300748U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of new energy batteries, and more specifically to a new energy lithium battery cover plate. Background Art
[0002] With the rapid growth of the new energy vehicle market, the market share of new energy vehicles has increased rapidly, and the requirements for the practicality and safety of new energy vehicles are getting higher and higher. New energy lithium batteries are commonly used energy storage components in new energy vehicles. During the use of new energy vehicles, cover plates are needed to provide safety protection for new energy lithium batteries.
[0003] Most of the current new energy lithium battery covers only serve as a partition to prevent collisions and protect against damage. The lithium battery is sealed and installed inside the battery compartment using the cover. During the use of the lithium battery, it will generate heat. If the lithium battery inside the battery compartment becomes too hot due to heat accumulation, it will cause damage to the lithium battery and other natural conditions, affecting the safety of the new energy lithium battery and the vehicle.
[0004] In view of this, the utility model proposes a new energy lithium battery cover plate capable of assisting heat dissipation to solve this problem. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a new energy lithium battery cover to solve the problems existing in the above-mentioned background technology.
[0006] The utility model provides the following technical solutions: a new energy lithium battery cover, comprising a cover body arranged at the bottom end of a lithium battery compartment, the cover body and the lithium battery compartment are detachably mounted by bolts, a plurality of lithium battery bodies are evenly arranged inside the lithium battery compartment, and a heat dissipation protection component is arranged on the cover body corresponding to the lithium battery body;
[0007] The heat dissipation protection component includes a partition fixedly installed on the upper surface of the cover body, and a groove adapted to the shape of the lithium battery body is reserved on the surface of the partition. A ventilation cavity is horizontally opened on the surface of the cover body, and the left and right directions of the ventilation cavity correspond to the driving direction of the car. A cooling cavity is opened inside the cover body, and heat transfer oil is stored inside the cooling cavity.
[0008] Furthermore, the cover plate body is made of aluminum alloy. Aluminum alloy as the manufacturing material has the advantages of light weight and high hardness.
[0009] Furthermore, a heat-conducting copper sheet is embedded in the inner wall of the groove of the partition, and the bottom end of the heat-conducting copper sheet is connected to the surface of the cover body; by providing the heat-conducting copper sheet, the temperature of the surface of the lithium battery body can be quickly conducted to the surface of the cover body.
[0010] Furthermore, the cover plate body is evenly provided with a plurality of supporting columns on the inner wall of the ventilation cavity and the inner wall of the cooling cavity; by providing the supporting columns, the structural strength of the cover plate body can be improved.
[0011] Furthermore, the cover plate body is embedded with a liquid level window for directly observing the liquid level of the heat transfer oil on the right side of the cooling cavity; by providing the liquid level window, it is convenient and intuitive to observe the liquid level and state of the heat transfer oil inside the liquid level window.
[0012] Furthermore, the cover body and the inner wall of the cooling chamber are provided with liquid level sensors, and the liquid level sensors are connected to the central control computer signal inside the cab; by providing the liquid level sensor, the liquid level of the heat transfer oil can be monitored, and when the heat transfer oil level drops, it can be quickly known to remind the driver whether the cover body is damaged or leaking.
[0013] Furthermore, the cover body is provided with a liquid injection port at the top of the cooling cavity, the internal thread of the liquid injection port is connected with a sealing plug, and the liquid injection port extends to the interior of the ventilation cavity; by providing the sealing plug, it is convenient to inject heat transfer oil into the cooling cavity.
[0014] Furthermore, an annular sealing groove is provided at the bottom end of the lithium battery compartment, and an annular sealing ring is provided on the surface of the cover body, and the annular sealing ring is adapted to the annular sealing groove.
[0015] Technical effects and advantages of the utility model:
[0016] 1. The utility model utilizes a cover body installed on the surface of a lithium battery compartment to provide anti-collision protection for the lithium battery body inside the lithium battery compartment, and a partition and a groove opened on the surface of the partition are provided to separate the various lithium battery bodies to avoid heat accumulation on the surfaces of different lithium battery bodies. By providing a heat dissipation protection component, during the driving of the car, air flows inside the ventilation cavity, which can reduce the temperature inside the cover body, and the temperature on the surface of the lithium battery body can be quickly conducted to the surface of the cover body through the heat-conducting copper sheet and partially absorbed by the heat-conducting oil, thereby achieving the effect of reducing the surface temperature of the lithium battery body and avoiding the lithium battery body temperature being too high to affect the use.
[0017] 2. The utility model, when the cover is used in a low-temperature environment, can utilize the heat transfer oil to absorb heat and store energy when the heat of the lithium battery body is extracted through the setting of the cooling cavity, thereby avoiding the situation where the temperature of the lithium battery body is too low and the energy storage effect is poor, thereby ensuring the normal use of the lithium battery body; by setting the supporting columns, the structural strength of the cover body can be improved; by setting the liquid level window, it is convenient and intuitive to observe the liquid level and state of the heat transfer oil in the cooling cavity; by setting the liquid level sensor, the liquid level of the heat transfer oil can be monitored, and when the heat transfer oil level is reduced, it can be quickly known to remind the driver whether the cover body is damaged or leaking; by setting the sealing plug, it is convenient to pour the heat transfer oil into the cooling cavity; by setting the annular sealing ring and the annular sealing groove, the sealing effect between the cover body and the lithium battery compartment can be improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the front section structure of the utility model;
[0020] Figure 3 It is a schematic diagram of the top view of the cover body of the utility model.
[0021] The accompanying drawings are marked as follows: 1. lithium battery compartment; 2. cover body; 3. lithium battery body; 4. partition; 5. ventilation chamber; 6. cooling chamber; 7. thermal conductive copper sheet; 8. supporting column; 9. liquid level window; 10. liquid level sensor; 11. sealing plug; 12. annular sealing ring. DETAILED DESCRIPTION
[0022] The following will clearly and completely describe the technical solution of the utility model in conjunction with the drawings in the utility model. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The new energy lithium battery cover involved in the utility model is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.
[0023] Reference Figure 1-3 The utility model provides a new energy lithium battery cover, including a cover body 2 arranged at the bottom end of a lithium battery compartment 1, the cover body 2 and the lithium battery compartment 1 are detachably installed by bolts, and a plurality of lithium battery bodies 3 are evenly arranged inside the lithium battery compartment 1.
[0024] During use of the cover, the cover body 2 is installed on the surface of the lithium battery compartment 1 to provide anti-collision protection for the lithium battery body 3 inside the lithium battery compartment 1, thereby achieving the effect of installing and protecting the lithium battery body 3.
[0025] The cover body 2 is made of aluminum alloy.
[0026] By using aluminum alloy as the manufacturing material, it has the advantages of light weight and high hardness, which can reduce the weight of the entire vehicle and ensure the protective effect of the cover body 2 on the lithium battery body 3.
[0027] An annular sealing groove is formed at the bottom end of the lithium battery compartment 1 , and an annular sealing ring 12 is disposed on the surface of the cover body 2 , and the annular sealing ring 12 is matched with the annular sealing groove.
[0028] By providing the annular sealing ring 12 and the annular sealing groove, the sealing effect between the cover body 2 and the lithium battery compartment 1 can be improved.
[0029] The cover body 2 is provided with a heat dissipation protection component corresponding to the lithium battery body 3 .
[0030] The heat dissipation protection component includes a partition 4 fixedly installed on the upper surface of the cover body 2, and a groove matching the shape of the lithium battery body 3 is reserved on the surface of the partition 4. A ventilation cavity 5 is horizontally opened on the surface of the cover body 2, and the left and right directions of the ventilation cavity 5 correspond to the driving direction of the car. A cooling cavity 6 is opened inside the cover body 2, and heat transfer oil is stored inside the cooling cavity 6.
[0031] A heat-conducting copper sheet 7 is embedded in the inner wall of the groove of the partition plate 4 , and the bottom end of the heat-conducting copper sheet 7 is connected to the surface of the cover plate body 2 .
[0032] During the use of the cover plate, by providing a partition 4 and a groove opened on the surface of the partition 4, each lithium battery body 3 can be separated to avoid heat accumulation on the surfaces of different lithium battery bodies 3. By providing a heat dissipation protection component, during the driving of the car, air flows inside the ventilation cavity 5, which can reduce the temperature inside the cover plate body 2. The temperature on the surface of the lithium battery body 3 can be quickly conducted to the surface of the cover plate body 2 through the heat-conducting copper sheet 7 and partially absorbed by heat-conducting oil, thereby achieving the effect of reducing the surface temperature of the lithium battery body 3 and avoiding the lithium battery body 3 being too high and affecting its use.
[0033] On the other hand, when the cover is used in a low-temperature environment, through the setting of the cooling chamber 6, when the heat of the lithium battery body 3 is discharged, the heat transfer oil can be used to absorb heat and store energy. When the battery is restarted after a short shutdown, the temperature of the lithium battery body 3 is prevented from being too low and the energy storage effect is poor, thereby ensuring the normal use of the lithium battery body 3.
[0034] The cover body 2 is evenly provided with a plurality of supporting columns 8 on the inner wall of the ventilation cavity 5 and the inner wall of the cooling cavity 6 .
[0035] By providing the supporting columns 8, the structural strength of the cover plate body 2 can be improved.
[0036] The cover body 2 is embedded with a liquid level window 9 on the right side of the cooling chamber 6 for directly observing the heat transfer oil level. The cover body 2 is provided with a liquid filling port at the top of the cooling chamber 6. The internal thread of the liquid filling port is connected with a sealing plug 11, and the liquid filling port extends to the interior of the ventilation chamber 5.
[0037] By providing the liquid level window 9 , it is convenient and intuitive to observe the liquid level and state of the heat transfer oil in the cooling chamber 6 , and by providing the sealing plug 11 , it is convenient to pour the heat transfer oil into the cooling chamber 6 .
[0038] The cover body 2 and the inner wall of the cooling chamber 6 are provided with a liquid level sensor 10, and the liquid level sensor 10 is in signal communication with the central control computer inside the cab.
[0039] By providing the liquid level sensor 10, the liquid level of the heat transfer oil can be monitored. When the liquid level of the heat transfer oil drops, it can be quickly known, reminding the driver whether the cover plate body 2 is damaged or leaking, thereby avoiding safety accidents.
[0040] Finally, it should be noted that the drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention, and other structures may refer to the usual design. In the absence of conflict, the same embodiment and different embodiments of the present invention may be combined with each other.
Claims
1. A new energy lithium battery cover, comprising a cover body (2) arranged at the bottom end of a lithium battery compartment (1), characterized in that: The cover plate body (2) and the lithium battery compartment (1) are detachably mounted via bolts, a plurality of lithium battery bodies (3) are evenly arranged inside the lithium battery compartment (1), and the cover plate body (2) is provided with a heat dissipation protection component corresponding to the lithium battery bodies (3); The heat dissipation protection component comprises a partition (4) fixedly mounted on the upper surface of the cover body (2), a groove matched with the shape of the lithium battery body (3) is reserved on the surface of the partition (4), a ventilation cavity (5) is transversely opened on the surface of the cover body (2), the left and right directions of the ventilation cavity (5) correspond to the driving direction of the vehicle, and a cooling cavity (6) is opened inside the cover body (2), and heat transfer oil is stored inside the cooling cavity (6).
2. The new energy lithium battery cover according to claim 1, characterized in that: The cover plate body (2) is made of aluminum alloy.
3. The new energy lithium battery cover according to claim 1, characterized in that: The partition (4) is embedded with a heat-conducting copper sheet (7) on the inner wall of the groove, and the bottom end of the heat-conducting copper sheet (7) is connected to the surface of the cover plate body (2).
4. The new energy lithium battery cover according to claim 1, characterized in that: The cover plate body (2) is evenly provided with a plurality of supporting columns (8) on the inner wall of the ventilation cavity (5) and the inner wall of the cooling cavity (6).
5. The new energy lithium battery cover according to claim 1, characterized in that: The cover plate body (2) is embedded with a liquid level window (9) on the right side of the cooling cavity (6) for directly observing the liquid level of the heat transfer oil.
6. The new energy lithium battery cover according to claim 1, characterized in that: The cover plate body (2) and the inner wall of the cooling chamber (6) are provided with a liquid level sensor (10), and the liquid level sensor (10) is in signal communication with a central control computer inside the cab.
7. The new energy lithium battery cover according to claim 1, characterized in that: The cover plate body (2) is provided with a liquid injection port at the top of the cooling cavity (6), the internal thread of the liquid injection port is connected with a sealing plug (11), and the liquid injection port extends to the interior of the ventilation cavity (5).
8. The new energy lithium battery cover according to claim 1, characterized in that: An annular sealing groove is provided at the bottom end of the lithium battery compartment (1), and an annular sealing ring (12) is provided on the surface of the cover body (2), and the annular sealing ring (12) is adapted to the annular sealing groove.