CN216597758U - Liquid cooling plate with adjustable local heat conduction temperature - Google Patents
Liquid cooling plate with adjustable local heat conduction temperature Download PDFInfo
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- CN216597758U CN216597758U CN202220074521.1U CN202220074521U CN216597758U CN 216597758 U CN216597758 U CN 216597758U CN 202220074521 U CN202220074521 U CN 202220074521U CN 216597758 U CN216597758 U CN 216597758U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a local heat conduction temperature adjustable liquid cooling board, including liquid cooling board, liquid cooling pipeline, splitter box, liquid cooling board water inlet, governing valve one, governing valve two, governing valve three, governing valve four, converging tank, liquid cooling board delivery port and electric core module. The utility model has the advantages that: when the temperature difference of the battery cores is found to be large in the using process of the battery pack, the heat dissipation conditions of the battery cores in different areas are adjusted, so that the temperature difference between the battery cores is reduced; the speed regulating valve is connected with the battery management system, and when the battery management system finds that the temperature difference is large, the battery management system can immediately regulate the temperature without manual operation, and belongs to an automatic management mode; the liquid cooling plate adjusting method can effectively solve the problem of uneven heat dissipation caused by insufficient design of liquid cooling pipelines, simultaneously thoroughly replaces an intricate and complex liquid path design mode, adopts a uniform pipeline design and flow rate control method, and reduces design and manufacturing costs.
Description
Technical Field
The utility model relates to a liquid cooling board specifically is a local heat conduction temperature adjustable liquid cooling board, belongs to energy storage battery heat dissipation technical field.
Background
With the increasing severity of energy crisis and environmental pollution problems, the nation sets up a series of energy-saving and emission-reducing measures. In addition, the country also develops new energy sources such as water energy, nuclear energy, tidal energy, solar energy, wind energy and the like in an important way to replace the traditional energy sources, so that a huge energy storage power station is required to be matched with the energy storage power station.
Energy storage battery is at the charge-discharge in-process, and the inside meeting heat production of lithium ion battery, and these heats can make the temperature of battery rise, because the electric core module in the battery package all is simultaneous charge-discharge, so the temperature difference of electric core will influence the chemical reaction rate of different electric cores, then influences charge-discharge efficiency gently, and the time has been long will greatly influence electric core life-span. Therefore, the battery management system is required to monitor the temperature of the battery cell module.
The battery management system monitors the temperature of the battery module in real time, and is connected with the battery core through a temperature and voltage acquisition wire harness, so that the temperature and voltage conditions of the battery core are acquired. The whole battery module is required to be capable of keeping at a normal working temperature of 15-40 ℃ under various extreme severe working conditions such as high temperature or low temperature. When the temperature of the battery module exceeds the normal temperature range, measures are required to be taken to heat or dissipate the heat of the battery module so that the battery module returns to the normal working temperature range.
At present, the commonly used heat dissipation modes comprise air cooling heat dissipation and liquid cooling heat dissipation.
Air cooling heat dissipation takes air as a heat transfer medium. And is divided into passive natural convection cooling and active forced convection cooling. The natural convection cooling does not need any cooling device, and only depends on natural wind to passively carry away the heat generated in the battery. The cooling method has the simplest structure and the lowest cost, but the heat exchange capability is the worst, so that the heat dissipation effect cannot be met. The forced convection cooling method is to actively exchange heat with the battery by means of an external cooling device such as an air conditioner or a fan, and the cooling effect of the forced convection cooling method is obviously stronger than that of natural convection cooling, so that the forced convection cooling method is widely adopted in the market at present.
Liquid cooling heat dissipation adopts liquid with relatively high heat conductivity as a medium. Common liquid media include water, kerosene, aqueous glycol solutions, and the like. The heat dissipation mode is mainly divided into two modes, one mode is a direct contact mode, namely, the battery is directly immersed in insulating cooling liquid with high heat conductivity, and the cooling liquid is directly contacted with the battery so as to absorb heat generated by the battery; the other type is indirect contact type, namely a flow channel is formed in a guide pipe (used for a cylindrical battery) or a cold plate (used for a square battery) to allow cooling liquid to flow through, then the guide pipe or the cold plate is directly contacted with the battery and radiates the battery through heat conduction, and the indirect contact type liquid cooling system has the advantages of convenience in arrangement and good radiating effect, and is applied to more projects.
However, with the development of the industry, liquid cooling heat dissipation will become the mainstream heat dissipation mode, and there are the following two reasons: firstly, the heat dissipation capacity of air cooling is limited, when the heating multiplying power of the battery cell is less than two multiplying powers, the air cooling can meet the requirement, and when the power generation multiplying power exceeds 2C, the air cooling can not meet the requirement. In addition, along with the energy storage requirement of a large-battery-core large-capacity power station, the air-cooled radiating air duct and the maintenance channel greatly occupy the space of a container, the channels can be cancelled by adopting liquid-cooled heat dissipation, the battery cores are arranged densely, the battery pack capacity is greatly increased, and the design requirement of the large-capacity power station is met.
However, in the prior art:
therefore, the current liquid-cooled battery pack is usually provided with a liquid-cooled plate below the battery module, a fluid channel is designed in the middle of the liquid-cooled plate, and liquid flows through the channel to bring out heat flow of the battery core from the battery pack. In order to achieve uniform heat dissipation, the flow channel is usually designed into different shapes, and the flow channel is machined in the liquid cooling plate, so that the heat generation of each battery cell is assumed to be the same at the beginning of the design. But actually, each cell generates heat differently, and as the cell is charged and discharged continuously, the temperature difference is more obvious, but at the moment, the liquid cooling plate is fixed, and even if the temperature difference exists, the temperature difference cannot be changed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a local heat conduction temperature adjustable liquid cold plate just lies in for the solution problem, even liquid cold plate has done, nevertheless finds electric core temperature distribution inhomogeneous in the use, still can adjust electric core temperature to make electric core module keep in an even temperature range, thereby improve the life of electric core.
The utility model discloses a following technical scheme realizes above-mentioned purpose: a liquid cooling plate with adjustable local heat conduction temperature comprises
The liquid cooling plate is hollow and square inside, and a battery cell module consisting of a plurality of battery cells is stacked on the upper plate surface of the liquid cooling plate;
the liquid cooling pipeline consists of four parallel pipelines and is arranged in the cavity of the liquid cooling plate;
the both ends that the liquid cooling pipeline lies in liquid cooling board with one side are connected with respectively and are used for to the one end of liquid cooling pipeline lets in the subassembly of intaking of rivers liquid and is used for following the rivers liquid that the liquid cooling pipeline other end flows carries out the water outlet assembly that derives of converging, just speed governing valve subassembly is installed with the link of the subassembly of intaking to the liquid cooling pipeline.
As a further aspect of the present invention: the liquid cooling plate can be provided with a plurality of liquid cooling plates which are horizontally arranged or laterally arranged.
As a further aspect of the present invention: the speed regulating valve component comprises a first speed regulating valve, a second speed regulating valve, a third speed regulating valve and a fourth speed regulating valve which are respectively connected with four parallel pipelines of the liquid cooling pipeline, and the speed regulating valve component is connected with the battery cell management module of the battery cell module by a wire harness.
As a further aspect of the present invention: the first speed regulating valve, the second speed regulating valve, the third speed regulating valve and the fourth speed regulating valve are sequentially arranged from inside to outside, and each speed regulating valve sequentially reduces the fluid speed controlled by the speed regulating valves in a gradient manner from inside to outside.
As a further aspect of the present invention: the water inlet assembly comprises a splitter box and a water inlet of a liquid cooling plate arranged in the middle of the splitter box, copper pipe joints are installed at the water inlet ends of four pipelines of the liquid cooling pipeline in a threaded connection mode, and the copper pipe joints and the splitter box are welded into a whole.
As a further aspect of the present invention: the water outlet assembly is composed of a converging tank and a liquid cooling plate water outlet formed in the middle of the converging tank, the water outlet ends of the four pipelines of the liquid cooling pipeline are in threaded connection with copper pipe joints, and the copper pipe joints and the converging tank are welded into a whole.
The utility model has the advantages that:
1. when the temperature difference of the battery cores is found to be large in the using process of the battery pack, the heat dissipation conditions of the battery cores in different areas are adjusted, so that the temperature difference between the battery cores is reduced;
2. the speed regulating valve is connected with the battery management system, and when the battery management system finds that the temperature difference is large, the battery management system can immediately regulate the temperature without manual operation, and belongs to an automatic management mode;
3. the liquid cooling plate adjusting method can effectively solve the problem of uneven heat dissipation caused by insufficient design of liquid cooling pipelines, thoroughly replaces an intricate and complex liquid path design mode, adopts a uniform pipeline design and flow rate control method, and reduces design and manufacturing costs;
4. the speed governing liquid cooling plate structure can mainly be applied to and adjust the electric core module difference in temperature, places or the change of placing and runner on one's side through the level, can carry out all-round temperature equilibrium to the electric core module in the use, need not to modify flow channel, need not to change the liquid cooling board, has very big meaning to energy storage battery's development.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
fig. 3 is a schematic structural view of the battery cell of the present invention placed at the bottom of the battery cell;
FIG. 4 is a perspective schematic view of the present invention;
fig. 5 is a schematic structural view of the battery cell of the present invention disposed on the side of the battery cell;
in the figure: 1. liquid cooling board, 2, liquid cooling pipeline, 3, splitter box, 4, liquid cooling board water inlet, 5, governing valve one, 6, governing valve two, 7, governing valve three, 8, governing valve four, 9, confluence groove, 10, liquid cooling board delivery port, 11, electric core module.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
Referring to FIGS. 1 to 3, a liquid cooling plate with adjustable local heat conduction temperature comprises
The liquid cooling plate 1 is hollow and square, and a battery cell module 11 consisting of a plurality of battery cells is stacked on the upper plate surface of the liquid cooling plate;
the liquid cooling pipeline 2 consists of four parallel pipelines and is arranged in the cavity of the liquid cooling plate 1;
The embodiment of the utility model provides an in, liquid cooling board 1 can be provided with a plurality ofly to be the level and place or stand on one's side and place, can carry out all-round temperature equilibrium to the electric core module in the use.
The embodiment of the utility model provides an in, the governing valve subassembly includes that the governing valve 5 who is connected with four parallel pipelines of liquid cooling pipeline 2 respectively, governing valve two 6, three 7 of governing valve and four 8 of governing valve, and the governing valve subassembly takes the pencil with the electric core management module of electric core module 11 to be connected, promptly the governing valve subassembly is circuit automatic control to rivers regulation, gather when certain regional temperature is higher when battery management system, give all governing valves with the signal feedback, be close to regional governing valve increase the velocity of flow at once, improve heat conduction efficiency, keep away from regional governing valve and reduce the velocity of flow at once, weaken heat conduction efficiency, thereby reach balanced difference in temperature purpose.
The embodiment of the utility model provides an in, speed governing valve 5, two 6, three 7 of speed governing valve and four 8 of speed governing valve from interior to exterior set gradually, and each speed governing valve from interior to exterior reduce the fluid speed that the speed governing valve controlled with the gradient formula in proper order, can increase inside electric core heat conduction, slow down outside electric core heat conduction to reduce the temperature difference between the inside and outside electric core.
The embodiment of the utility model provides an in, the subassembly of intaking is by splitter box 3 and the liquid cooling board water inlet 4 of seting up in the middle of the splitter box 3 constitutes, just the end threaded connection that intakes of 2 four pipelines of liquid cooling pipeline installs copper union, and copper union is as an organic whole with 3 welding of splitter box to can shunt the liquid of water inlet to in the different pipelines.
The embodiment of the utility model provides an in, go out the water subassembly by converging groove 9 and the liquid cooling board delivery port 10 of seting up in the middle of converging groove 9 constitutes, just the play water end threaded connection copper pipe joint of 2 four pipelines of liquid cooling pipeline, copper pipe joint and the groove 9 welding that converges are as an organic whole, and the liquid with different pipelines converges to the delivery port and discharges.
Example two
Please refer to fig. 4-5, a liquid cooling plate with adjustable local heat conduction temperature, a water cooling plate can be arranged at the side of a battery cell module for increasing the heat dissipation of the battery cell, because the battery cell pole piece and the pole post are main heating components, the upper heating amount of the battery cell is larger than the lower heating amount, the water cooling pipeline is horizontal and linear, when the upper heating amount of the battery cell is increased, the flow controlled by the upper speed regulating valve can be increased, the flow controlled by the lower speed regulating valve is reduced, the flow controlled by the middle speed regulating valve is controlled according to the gradient, so the heat conduction of the upper battery cell can be increased, the heat conduction of the lower battery cell is slowed down, thereby the temperature difference between single battery cells is reduced
The working principle is as follows: the speed regulating valves are arranged at different flow passages of the liquid cooling plate, and the purpose of regulating the heat dissipation of the cell in the region is achieved by regulating the water flow in different regions.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A liquid cooling plate with adjustable local heat conduction temperature is characterized in that: comprises that
The liquid cooling plate (1) is hollow and square, and a battery cell module (11) consisting of a plurality of battery cells is stacked on the upper plate surface of the liquid cooling plate;
the liquid cooling pipeline (2) consists of four parallel pipelines and is arranged in the cavity of the liquid cooling plate (1);
liquid cooling pipeline (2) are located liquid cooling board (1) both ends with one side and are connected with respectively be used for to the one end of liquid cooling pipeline (2) lets in the subassembly of intaking of rivers liquid and is used for following the rivers liquid that the liquid cooling pipeline (2) other end flows carries out the water components that leads out of converging, just speed governing valve subassembly is installed with the link of the subassembly of intaking in liquid cooling pipeline (2).
2. The liquid cooling plate with adjustable local heat conduction temperature according to claim 1, wherein: the liquid cooling plates (1) can be arranged in a plurality and are horizontally arranged or laterally arranged.
3. The liquid cooling plate with adjustable local heat conduction temperature according to claim 1, wherein: the speed regulating valve component comprises a first speed regulating valve (5), a second speed regulating valve (6), a third speed regulating valve (7) and a fourth speed regulating valve (8) which are respectively connected with four parallel pipelines of the liquid cooling pipeline (2), and the speed regulating valve component is connected with the battery cell management module of the battery cell module (11) through a wire harness.
4. The liquid cooling plate with adjustable local heat conduction temperature according to claim 3, wherein: the speed regulating valve I (5), the speed regulating valve II (6), the speed regulating valve III (7) and the speed regulating valve IV (8) are sequentially arranged from inside to outside, and the speed of fluid controlled by the speed regulating valves is reduced by the speed regulating valves from inside to outside in a gradient manner.
5. The liquid cooling plate with adjustable local heat conduction temperature according to claim 1, wherein: the water inlet assembly is composed of a splitter box (3) and a liquid cooling plate water inlet (4) arranged in the middle of the splitter box (3), a copper pipe joint is installed at the water inlet end of each of the four pipelines of the liquid cooling pipeline (2) in a threaded connection mode, and the copper pipe joint and the splitter box (3) are welded into a whole.
6. The liquid cooling plate with adjustable local heat conduction temperature according to claim 1, wherein: the water outlet assembly is composed of a converging tank (9) and a liquid cooling plate water outlet (10) formed in the middle of the converging tank (9), the water outlet ends of the four pipelines of the liquid cooling pipeline (2) are in threaded connection with copper pipe joints, and the copper pipe joints and the converging tank (9) are welded into a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220074521.1U CN216597758U (en) | 2022-01-12 | 2022-01-12 | Liquid cooling plate with adjustable local heat conduction temperature |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220074521.1U CN216597758U (en) | 2022-01-12 | 2022-01-12 | Liquid cooling plate with adjustable local heat conduction temperature |
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| CN216597758U true CN216597758U (en) | 2022-05-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430938A (en) * | 2022-07-12 | 2022-12-06 | 重庆三峡时代能源科技有限公司 | Welding and grouping method for liquid cooling system of energy storage battery pack |
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2022
- 2022-01-12 CN CN202220074521.1U patent/CN216597758U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430938A (en) * | 2022-07-12 | 2022-12-06 | 重庆三峡时代能源科技有限公司 | Welding and grouping method for liquid cooling system of energy storage battery pack |
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