CN222004653U - Tab adhesive and safe heat dissipation lithium battery pack - Google Patents
Tab adhesive and safe heat dissipation lithium battery pack Download PDFInfo
- Publication number
- CN222004653U CN222004653U CN202322932011.0U CN202322932011U CN222004653U CN 222004653 U CN222004653 U CN 222004653U CN 202322932011 U CN202322932011 U CN 202322932011U CN 222004653 U CN222004653 U CN 222004653U
- Authority
- CN
- China
- Prior art keywords
- liquid
- heat dissipation
- battery
- heat
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 70
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 37
- 239000000853 adhesive Substances 0.000 title claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 130
- 238000001816 cooling Methods 0.000 claims abstract description 85
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 239000000110 cooling liquid Substances 0.000 claims abstract description 19
- 239000004642 Polyimide Substances 0.000 claims abstract description 5
- 239000003822 epoxy resin Substances 0.000 claims abstract description 5
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 5
- 229920001721 polyimide Polymers 0.000 claims abstract description 5
- 229920000098 polyolefin Polymers 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 238000005192 partition Methods 0.000 claims description 15
- 238000007664 blowing Methods 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 claims description 3
- 238000012546 transfer Methods 0.000 abstract description 7
- 230000005855 radiation Effects 0.000 description 9
- 238000013461 design Methods 0.000 description 8
- 238000013021 overheating Methods 0.000 description 6
- 239000003292 glue Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Abstract
The utility model relates to a lithium battery tab adhesive, which comprises a heat conduction layer, a high temperature resistant layer and an insulating layer which are sequentially arranged from outside to inside; the heat conducting layer is made of epoxy resin, the high temperature resistant layer is made of polyimide, the insulating layer is made of polyolefin, and the insulating layer adopts a micropore structure; still include a safe heat dissipation lithium cell group, based on aforesaid lithium cell tab is glued, including battery box casing, liquid cooling mechanism and a plurality of PCM heat-conducting plate, be equipped with two baffles of relative settings in the battery box casing, be formed with the battery chamber that is used for placing the group battery between two baffles, the PCM heat-conducting plate is arranged in keeping apart the battery cell in the group battery, liquid cooling mechanism is equipped with many first liquid runner down liquid cooling plate and last liquid cooling plate in the last liquid cooling plate, is equipped with the second liquid runner that corresponds first liquid runner down in the liquid cooling plate, and upper and lower liquid cooling plate passes through many liquid runner, gives the circulating cooling liquid with heat transfer, can cool off whole battery box.
Description
Technical Field
The utility model relates to the technical field of heat dissipation of lithium batteries, in particular to a tab adhesive and a safe heat dissipation lithium battery pack.
Background
Among the power batteries, lithium batteries have advantages of small size, light weight, high energy density, and the like, and are currently widely used. Soft-pack lithium batteries among lithium batteries are an important component thereof. The soft package lithium battery is formed by plastic-aluminum membrane encapsulation, and is different from ordinary metal-clad battery, and the plastic-aluminum membrane coefficient of heat conductivity of soft package lithium battery is little, and heat production is fast in the course of the work, and especially in battery tab department heating is more serious, and heat degree of aggregation is high, if can't in time derive heat, will make lithium battery self inflation to very big influence self working capacity and life can take place thermal runaway and produce the explosion even when serious.
Because the soft package lithium battery has the characteristics of less regular shape, soft shape and the like, a reasonable heat dissipation system is very difficult to design for the soft package lithium battery, especially at the battery electrode lug with serious heat generation. Therefore, the design of the battery heat dissipation system which has high heat dissipation efficiency, can reasonably and efficiently dissipate heat of the battery tab and is suitable for the soft-package lithium battery is very necessary.
Disclosure of utility model
The utility model aims to solve the technical problems of the prior art and provides a lithium battery tab adhesive and a safe heat dissipation battery pack.
The technical scheme adopted for solving the technical problems is as follows:
the lithium battery tab adhesive comprises a body, wherein the body comprises a heat conducting layer, a high temperature resistant layer and an insulating layer which are sequentially arranged from outside to inside.
Preferably, the heat conducting layer is made of epoxy resin, the high temperature resistant layer is made of polyimide, the insulating layer is made of polyolefin, and the insulating layer adopts a micropore structure.
The utility model also provides a safe heat dissipation lithium battery pack, which is based on the lithium battery tab glue and comprises a battery box shell, a liquid cooling mechanism and a plurality of PCM heat conducting plates, wherein two opposite partition plates are arranged in the battery box shell, a battery cavity for placing the battery pack is formed between the two partition plates, the battery pack is composed of a plurality of battery units, and the PCM heat conducting plates are used for isolating the battery units in the battery pack and are in close contact with adjacent battery units;
The liquid cooling mechanism comprises a lower liquid cooling plate arranged at the bottom of the battery pack and an upper liquid cooling plate arranged at the upper side of the battery pack, a plurality of first liquid flow channels are arranged in the upper liquid cooling plate, a second liquid flow channel corresponding to the first liquid flow channel is arranged in the lower liquid cooling plate, and the first liquid flow channel and the second liquid flow channel both comprise a liquid inlet and a liquid outlet;
a plurality of water cooling mechanisms are arranged on one side of the partition board, which is far away from the battery pack, the liquid inlet and the liquid outlet of the first liquid flow channel are respectively connected with the two water cooling mechanisms positioned on different partition boards through flexible flow pipes, and the liquid inlet and the liquid outlet of the second liquid flow channel are respectively connected with the two water cooling mechanisms positioned on different partition boards through flexible flow pipes;
The battery unit comprises a battery main body, a battery tab and a body connected with the battery tab in a hot melt manner;
the upper liquid cooling plate is positioned at the top of the battery cavity and is close to the battery pack lug, and the lower end of the PCM heat conducting plate is fixedly connected with the lower liquid cooling plate.
Preferably, the water cooling mechanism comprises a heat radiation plate, heat radiation fins fixed on the heat radiation plate and a heat radiation fan blowing to the heat radiation fins, wherein a heat radiation pipeline is arranged on the heat radiation plate, two ends of the heat radiation pipeline are respectively connected with the first liquid flow channel and the second liquid flow channel through flexible flow pipes, and the heat radiation pipeline is connected with a water pump.
Preferably, each independent liquid flow passage in the upper liquid cooling plate and the lower liquid cooling plate is a straight flow passage, and the cooling liquid flow directions in the adjacent liquid flow passages are opposite.
Preferably, the heat dissipation pipeline is s-shaped on the heat dissipation pipeline, and the heat dissipation fins are provided with heat pipe channels matched with the heat dissipation pipeline.
Preferably, the PCM heat-conducting plate is a U-shaped plate, and the U-shaped opening of the U-shaped plate is used for embedding the battery unit and is in close contact with the embedded battery unit.
The utility model has the beneficial effects that: the lithium battery tab of the present utility model can effectively isolate and closely contact the battery cells through the PCM heat conductive plates and the separator, so that heat can be uniformly distributed in the entire battery pack. This prevents some of the battery cells from overheating due to heat accumulation, thereby improving the overall stability of the battery pack. The liquid cooling mechanism provides an efficient heat dissipation mode. The lower liquid cooling plate passes through a plurality of first liquid flow passages, and the upper liquid cooling plate passes through a plurality of second liquid flow passages to transfer heat to the circulating cooling liquid. In this way, heat can be quickly conducted away from the battery pack, preventing overheating from occurring. The water cooling mechanism further provides a means of temperature control. The cooling liquid can be cooled by arranging the water cooling mechanism on one side of the partition plate far away from the battery pack, so that the temperature of each area is ensured to be within a safe range. By maintaining the battery pack to operate in a suitable temperature range, the life of the battery can be extended. The water cooling heat dissipation mechanism is connected with the liquid cooling mechanism, and the cooling liquid is circulated back through the flexible flow pipe, so that further heat dissipation is realized. The cooling liquid can continuously circulate, continuously absorb and emit heat, and keep the battery pack in a proper temperature range.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the present utility model will be further described with reference to the accompanying drawings and embodiments, in which the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained by those skilled in the art without inventive effort:
FIG. 1 is a layered construction diagram of a tab adhesive according to a preferred embodiment of the present utility model;
Fig. 2 is a sectional view of a case of a safety heat dissipation lithium battery pack according to a preferred embodiment of the present utility model;
Fig. 3 is an internal structural view of a safety heat dissipation lithium battery pack according to a preferred embodiment of the present utility model;
Fig. 4 is a side view illustrating an internal structure of a safety heat dissipation lithium battery pack according to a preferred embodiment of the present utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.
The lithium battery tab of the preferred embodiment of the utility model is shown in fig. 1, and the lithium battery tab glue comprises a body 1, wherein the body 1 comprises a heat conducting layer 11, a high temperature resistant layer 12 and an insulating layer 13 which are sequentially arranged from outside to inside.
The heat conducting layer 11 is made of epoxy resin, the high temperature resistant layer 12 is made of polyimide, the insulating layer 13 is made of polyolefin, and the insulating layer 13 adopts a micropore structure.
The heat conducting layer is made of epoxy resin, so that heat generated in the battery can be effectively conducted, the temperature is ensured to be uniformly distributed when the battery works, and the efficiency and the stability of the battery are improved. The high temperature resistant layer is made of polyimide, and the material has excellent high temperature stability, can keep stable performance in a high temperature environment, and improves the high temperature resistant capability of the battery. The insulating layer is made of polyolefin, has good insulating property, can effectively prevent direct contact between the anode and the cathode, and reduces the risk of short circuit. The microporous structure of the insulating layer can control the permeation of gas and the transmission of ions, thereby contributing to the improvement of the performance and stability of the battery. In general, the design of the lithium battery tab adhesive ensures that the battery has excellent heat conductivity, high temperature resistance and good insulating property during working through the mutual matching of materials and characteristics of different layers, thereby improving the overall performance and the safety of the lithium battery.
The safe heat dissipation lithium battery pack of the preferred embodiment of the utility model is shown in fig. 2-4, and based on the aforesaid lithium battery tab glue, the safe heat dissipation lithium battery pack comprises a battery box shell 2, a liquid cooling mechanism 3 and a plurality of PCM heat conducting plates 4, wherein two opposite partition plates 21 are arranged in the battery box shell 2, a battery cavity for placing the battery pack is formed between the two partition plates 21, the battery pack is composed of a plurality of battery cells, and the PCM heat conducting plates 4 are used for isolating the battery cells in the battery pack and are in close contact with adjacent battery cells;
The liquid cooling mechanism 3 comprises a lower liquid cooling plate 31 arranged at the bottom of the battery pack and an upper liquid cooling plate 32 arranged at the upper side of the battery pack, wherein a plurality of first liquid flow channels 33 are arranged in the upper liquid cooling plate 32, a second liquid flow channel 34 corresponding to the first liquid flow channel 33 is arranged in the lower liquid cooling plate 31, and the first liquid flow channel 33 and the second liquid flow channel 34 both comprise a liquid inlet and a liquid outlet;
The side of the partition plate 21 far away from the battery pack is provided with a plurality of water cooling mechanisms 5, the liquid inlet and the liquid outlet of the first liquid flow passage 33 are respectively connected with the two water cooling mechanisms 5 positioned on different partition plates through flexible flow pipes 6, and the liquid inlet and the liquid outlet of the second liquid flow passage 34 are respectively connected with the two water cooling mechanisms 5 positioned on different partition plates through flexible flow pipes 6; the length of the flexible flow tube is provided with a margin so as to facilitate the removal of the upper liquid cooling plate.
The battery unit comprises a battery main body, a battery tab and a body 1 in hot melt connection with the battery tab; the tab is tightly connected with the battery body. The tab glue can fill the tiny gap between the tab and the battery body, so that the heat conduction efficiency is improved, and the tab glue part is in contact with the upper liquid cooling plate, so that the heat generated by the tab is effectively transferred to the liquid cooling plate.
The upper liquid cooling plate 32 is positioned at the top of the battery cavity and is adjacent to the battery pack tab, and the lower end of the PCM heat conducting plate 4 is fixedly connected with the lower liquid cooling plate 31.
First, the battery cells are assembled into a battery pack and placed in a battery cavity within a battery case. Two oppositely disposed separators separate the battery cells to ensure that they do not interfere with each other. During use, the battery cells may generate heat due to the battery being charged, discharged, or subjected to external environments. The generated heat is conducted to the PCM conduction plate through the body of the battery cell. The PCM heat-conducting plate is close to the battery unit and effectively transfers heat to the liquid cooling mechanism. The liquid cooling mechanism comprises an upper liquid cooling plate and a lower liquid cooling plate, and liquid flows between the upper liquid cooling plate and the lower liquid cooling plate. The upper liquid cooling plate is internally provided with a plurality of first liquid flow passages, and the lower liquid cooling plate is internally provided with a corresponding second liquid flow passage. Heat is transferred to the cooling liquid through the first liquid flow path. The cooling liquid can enter the first liquid flow channel through the liquid inlet and then flow through the liquid cooling mechanism to absorb heat. The heat loaded liquid will then flow out of the outlet and into the corresponding second liquid flow channel. On the side of the separator remote from the battery a plurality of water cooling mechanisms are arranged. The water cooling heat dissipation mechanism is connected with the liquid cooling mechanism, and the cooling liquid is circulated back through the flexible flow pipe, so that further heat dissipation is realized. The cooling liquid can continuously circulate, continuously absorb and emit heat, and keep the battery pack in a proper temperature range.
The design of the flexible flow tube allows the cooling plate to be removed relatively easily, and the flexible flow tube is a tube made of flexible material, the flexibility of which allows it to be bent or twisted, thereby facilitating removal of the cooling plate when desired. This design is very convenient for maintenance and repair work. When the battery is required to be overhauled or replaced, the cooling plate can be easily removed by loosening the connection of the flexible flow pipe, and the whole liquid cooling system is not required to be disassembled. This can save a great deal of maintenance time and costs.
The lithium battery tab of the present utility model can effectively isolate and closely contact the battery cells through the PCM heat conductive plates and the separator, so that heat can be uniformly distributed in the entire battery pack. This prevents some of the battery cells from overheating due to heat accumulation, thereby improving the overall stability of the battery pack. The liquid cooling mechanism provides an efficient heat dissipation mode. The upper liquid cooling plate transfers heat to the circulating cooling liquid through a plurality of first liquid flow channels. In this way, heat can be quickly conducted away from the battery pack, preventing overheating from occurring. The water cooling mechanism further provides a means of temperature control. The water cooling mechanism is arranged on one side, far away from the battery pack, of the partition plate, so that the whole battery box can be locally cooled, and the temperature of each area is ensured to be within a safe range. By maintaining the battery pack to operate in a suitable temperature range, the life of the battery can be extended. Too high or too low a temperature can negatively impact the performance and life of the battery. The effective heat dissipation system can reduce the safety risk caused by overheat of the battery pack. This is particularly important for applications requiring high power output, such as electric vehicles. Maintaining the battery pack in a proper temperature range can ensure stability of its performance, whether in a high-temperature or low-temperature environment.
As shown in fig. 2 and 3, the water-cooling heat dissipation mechanism 5 comprises a heat dissipation plate 51, heat dissipation fins 52 fixed on the heat dissipation plate 51, and a heat dissipation fan 53 blowing to the heat dissipation fins 52, wherein a heat dissipation pipeline 54 is arranged on the heat dissipation plate 51, two ends of the heat dissipation pipeline 54 are respectively connected with the first liquid flow channel 33 and the second liquid flow channel 34 through a flexible flow pipe 6, and the heat dissipation pipeline is connected with a water pump 55. The cooling liquid is input into the liquid runner through the water pump to absorb heat on the liquid cooling plate, then the cooling liquid is conveyed to the heat dissipation pipeline, the heat dissipation plate dissipates heat of the heat dissipation pipeline and conducts the heat to the heat dissipation fins, then the heat dissipation fan sucks air through the air inlet, so that the heat dissipation fins are cooled, and the heat is conducted into the outside air through the air outlet, so that effective and rapid heat dissipation is achieved, and the work efficiency reduction caused by overheat of the battery pack is prevented. The water cooling mechanism 5 is provided with a plurality of, and first liquid runner and second liquid runner one-to-one are corresponding, and first liquid runner and second liquid runner quantity is four in this embodiment, and water cooling mechanism also is provided with four, and a plurality of water cooling mechanism are located same horizontal line, and both sides are equipped with respectively corresponding radiator fan's air intake and air outlet around the battery box casing.
As shown in fig. 4, the heat dissipation pipe 54 is s-shaped on the heat dissipation pipe 54, and the heat dissipation fins 52 are provided with heat pipe channels matched with the heat dissipation pipe 54; facilitating heat exchange and at the same time facilitating installation of the heat dissipation conduit 34. The material of the heat dissipation plate 32 and the heat dissipation fins 41 is aluminum, copper or iron; has the advantages of various raw materials and convenient processing.
As shown in the figure, each independent liquid flow passage of the liquid cooling plate is a straight flow passage, and the cooling liquid flow directions in the adjacent liquid flow passages are opposite. The flow directions of the cooling liquid in the adjacent flow channels are opposite, so that the cooling liquid can flow more uniformly in the whole liquid cooling plate, and local overheating or supercooling phenomenon is avoided. The coolant in adjacent channels flows in opposite directions, which increases the efficiency of heat transfer. This is because the coolant absorbs heat during the flow process, and when the coolant flows in the adjacent flow channels are opposite, they contact each other, so that heat transfer is more sufficient. Because the cooling liquid in the adjacent flow channels has opposite flow directions, the temperature distribution in the liquid cooling plate can be ensured to be more uniform, thereby ensuring the cooling effect of the whole battery pack. Through the design, the heat absorption effect of the cooling liquid can be better utilized, and the heat dissipation efficiency is improved.
As shown in the figure, the PCM heat conduction plate 4 is a U-shaped plate, and the U-shaped opening of the U-shaped plate is used for embedding a battery cell and is in close contact with the embedded battery cell. Through the design of U template, can nest the battery cell in U type mouth to realized with the inseparable contact of PCM heat conduction board, ensured that heat can effectively transfer to on the heat conduction board. By close contact, it is ensured that heat can be evenly distributed to the PCM heat-conducting plate, avoiding the situation of local overheating or supercooling. The design of the U-shaped opening can also play a certain role in protection, and external objects are prevented from directly contacting the battery unit. Meanwhile, the battery units can be effectively isolated to prevent mutual interference. By adopting the U-shaped plate, certain structural stability can be provided, and the overall stability of the PCM heat-conducting plate is ensured, so that the close contact between the battery unit and the heat-conducting plate is ensured, thereby improving the heat dissipation efficiency and ensuring the stability and the safety of the battery pack.
It is to be understood that the present utility model is not limited to the above-described preferred embodiments, and that any person who has come to various other forms of products in the light of the present utility model can make any change in shape or structure, and all that has the same or similar technical solutions as the present utility model falls within the scope of protection of the present utility model.
Claims (7)
1. The tab adhesive is characterized by comprising a body (1), wherein the body (1) comprises a heat conducting layer (11), a high-temperature resistant layer (12) and an insulating layer (13) which are sequentially arranged from outside to inside.
2. The tab adhesive according to claim 1, wherein the heat conductive layer (11) is made of epoxy resin, the high temperature resistant layer (12) is made of polyimide, the insulating layer (13) is made of polyolefin, and the insulating layer (13) adopts a microporous structure.
3. The safe heat dissipation lithium battery pack is characterized by comprising a battery box shell (2), a liquid cooling mechanism (3) and a plurality of PCM heat-conducting plates (4), wherein two opposite partition plates (21) are arranged in the battery box shell (2), a battery cavity for placing a battery pack (7) is formed between the two partition plates (21), the battery pack (7) is composed of a plurality of battery units, and the PCM heat-conducting plates (4) are used for isolating the battery units in the battery pack and are in close contact with adjacent battery units;
the liquid cooling mechanism (3) comprises a lower liquid cooling plate (31) arranged at the bottom of the battery pack and an upper liquid cooling plate (32) arranged at the upper side of the battery pack, a plurality of first liquid flow channels (33) are arranged in the upper liquid cooling plate (32), a second liquid flow channel (34) corresponding to the first liquid flow channel (33) is arranged in the lower liquid cooling plate (31), and the first liquid flow channel (33) and the second liquid flow channel (34) both comprise a liquid inlet and a liquid outlet;
A water cooling mechanism (5) is arranged on one side, far away from the battery pack, of the partition plate (21), a liquid outlet and a liquid inlet of the first liquid flow channel (33) are respectively connected with the two water cooling mechanisms (5) through flexible flow pipes (6), and a liquid outlet and a liquid inlet of the second liquid flow channel (34) are respectively connected with the two water cooling mechanisms (5) through flexible flow pipes (6);
The battery unit comprises a battery main body, a battery tab and a body (1) connected with the battery tab in a hot melt manner;
The upper liquid cooling plate (32) is positioned at the top of the battery cavity and is close to the battery pack lug, and the lower end of the PCM heat conducting plate (4) is fixedly connected with the lower liquid cooling plate (31).
4. A safe heat dissipation lithium battery pack according to claim 3, wherein the water cooling heat dissipation mechanism (5) comprises a heat dissipation plate (51), heat dissipation fins (52) fixed on the heat dissipation plate (51) and a heat dissipation fan (53) blowing towards the heat dissipation fins (52), a heat dissipation pipeline (54) is arranged on the heat dissipation plate (51), the heat dissipation pipeline (54) is connected with a water pump (55), and two ends of the heat dissipation pipeline (54) are respectively connected with the first liquid flow channel (33) and the second liquid flow channel (34) through flexible flow pipes (6).
5. The safe heat dissipation lithium battery pack according to claim 4, wherein the heat dissipation pipeline (54) is s-shaped on the heat dissipation pipeline (54), and the heat dissipation fins (52) are provided with heat pipe channels matched with the heat dissipation pipeline (54).
6. The lithium battery pack of claim 3, wherein each independent liquid flow channel in the upper liquid cooling plate and the lower liquid cooling plate is a straight flow channel, and the cooling liquid flow directions in the adjacent liquid flow channels are opposite.
7. A safety heat dissipation lithium battery pack according to claim 3, characterized in that the PCM heat-conducting plate (4) is a U-shaped plate, the U-shaped opening of the U-shaped plate is used for embedding a battery cell, and is in close contact with the embedded battery cell.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222004653U true CN222004653U (en) | 2024-11-15 |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205921051U (en) | Liquid cooling type thermal management system of battery package | |
| CN106374162B (en) | A kind of battery modules thermal management algorithm and device based on pyroelectric effect | |
| CN206134883U (en) | Battery module heat pipe reason device based on pyroelectric effect | |
| CN102544567B (en) | Power battery module with liquid cooling system | |
| CN208028191U (en) | A kind of power battery of liquid cooling and air-cooled combination heat dissipation | |
| CN107666024A (en) | A kind of liquid-cooled heat management system of battery bag | |
| CN102709618A (en) | Microchannel cooling temperature equalizing system for ventilation of lithium battery | |
| CN111312954B (en) | Electric vehicle battery thermal management device and thermal management method | |
| CN112993437A (en) | Closed energy storage system with heat dissipation function | |
| WO2024082591A1 (en) | Frame heat dissipation structure, and power battery module having same | |
| CN218632215U (en) | Battery package, thermal management system and vehicle | |
| CN112510285A (en) | Heat dissipation method and device for vehicle battery module | |
| CN210668612U (en) | Battery module and battery package | |
| CN110635198A (en) | Heat dissipation device of power battery | |
| CN207602730U (en) | Water-cooled module | |
| CN115189064A (en) | Energy storage battery module, battery pack and energy storage system | |
| CN109524742A (en) | Prevent the lithium ion battery mould group of thermal runaway | |
| CN222004653U (en) | Tab adhesive and safe heat dissipation lithium battery pack | |
| CN219959153U (en) | Air-cooled battery pack and energy storage system comprising same | |
| CN218677321U (en) | Self-adaptive air-cooled battery pack | |
| CN216054975U (en) | Thermal runaway separation structure, battery module and laminate polymer battery | |
| CN215451537U (en) | Battery tray, battery pack and vehicle | |
| CN214336785U (en) | Battery thermal management system | |
| CN109066007B (en) | Large-scale battery module integration box cooling system based on heat pipe | |
| CN207559007U (en) | A kind of Li-ion batteries piles cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |