CN109950656A - A kind of asymmetric double process liquid cooling plate of curved end surface - Google Patents
A kind of asymmetric double process liquid cooling plate of curved end surface Download PDFInfo
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- CN109950656A CN109950656A CN201910292287.2A CN201910292287A CN109950656A CN 109950656 A CN109950656 A CN 109950656A CN 201910292287 A CN201910292287 A CN 201910292287A CN 109950656 A CN109950656 A CN 109950656A
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- cooling plate
- liquid cooling
- sprue
- liquid
- end surface
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The present invention discloses a kind of asymmetric double process liquid cooling plate of curved end surface, which belongs to heat sink technology field.The liquid cooling plate has shell, inlet, liquid outlet, sprue and multiple row Thin Rectangular fin.The sprue of the liquid cooling plate is asymmetrical double-flow arrangement；The thin spacing of fin is essentially identical, and sprue is divided into several microchannels；The inlet, liquid outlet is in the same side of shell；The sprue shape is different, plays support and drainage；The bottom face of the shell is curved surface.Using liquid-cooling heat radiation technology, when liquid flows in radiator, enter the microchannel between each fin from sprue, the introducing of fin can increase the heat exchange area of liquid cooling plate, to increase heat exchange amount.The spline surface of housing bottom can make the flow of microchannel more uniform, moreover it is possible to reduce the pressure loss in flow process.Asymmetric double process design can be obviously improved the even temperature effect of liquid cooling plate.
Description
Technical field
The invention belongs to radiator fields, are related to a kind of liquid-cooling heat radiator.
Background technique
Currently, lithium ion battery is wide by electric car because of the characteristics such as its high-energy density, long circulation life, without memory
General use.But meanwhile there is also various security risks, such as thermal runaway for lithium battery.Therefore, effective battery thermal management system is to protect
Demonstrate,prove the basis of its superperformance.Studies have shown that the performance of power battery is mainly by the restriction of battery temperature, the height of battery temperature
Low service life and battery performance to battery has crucial effect.Therefore, the structure design and heat management system of battery pack
Research helps to regulate and control battery using temperature, and temperature is the important parameter for influencing lithium ion battery charge-discharge performance.Temperature meeting
The internal resistance of battery is influenced, when temperature is low, electrolyte temperature is low, and ion activity is lower, so that the ion mobility of inside battery
It is lower, cause the total internal resistance of battery larger, after temperature increases, ion activity increases, and migration rate increases, and the internal resistance of cell reduces.
The decaying too high or too low for temperature that will also result in battery capacity, influences charge-discharge performance.Therefore, suitable operating temperature is battery
The basic demand that superperformance plays.
Battery pack thermal management technology scheme reported in the literature mainly has: air-cooled, liquid cooling and Phase cooling.With power electric
Pond is gradually developed to high power, large scale direction, and the calorific value of battery rises, it is air-cooled at this time would become hard to meet battery thermal management want
It asks, and for phase transformation and heat pipe heat exchanging scheme, its application, liquid cooling scheme Yin Qigao are also limited since uncontrollable factor is more
The characteristics such as effect, reliable and receive significant attention, and in view of safety issues such as leakproofness, short circuits, what is generally used is indirect
Formula liquid cooling.It is run in addition, if battery transmits in insufficient internal environment in the heat such as insulation or high temperature, battery temperature will be shown
It writes and rises." hot spot " is formed so as to cause inside battery, it may finally thermal runaway.Therefore the temperature uniformity in battery pack is especially
It is important.
Summary of the invention
In order to solve the technical problem in above-mentioned background technique, the present invention provides a kind of asymmetric double process of curved end surface
Liquid cooling plate, which is characterized in that be provided with shell, an inlet, a liquid outlet, several sprues and thin rectangular shape fin.It is described
Inlet, liquid outlet and sprue are located at the same end of device, and several thin fins are located in sprue, at a distance of same between fin
Sprue is divided into several microchannels by sample interval.The sprue of liquid cooling plate is double-flow arrangement, and inlet side is 1 process, out
Liquid mouth side is 2 processes.
Further, the shell, sprue, thin fin material be the aluminum materials such as 6063, No. 6061 aluminium alloys.
Further, unique feed liquor face is located at the front end of 1 process of liquid cooling plate, and shape is rounded, and is parallel to liquid cooling
Plate upper surface.
Further, unique liquid level out is located at the front end of 2 process of liquid cooling plate, and shape is rounded, and is parallel to liquid cooling
Plate upper surface.
Further, the thin fin is cuboid.
Further, the housing bottom is a curved design, which is the flow variance between each microchannel
For point of penetration, by obtained by gradient algorithm step by step calculation.
Further, double-flow arranges that fluid enters radiator by the inlet, into 1 process in N-shaped
Reach liquid cooling plate bottom after minim channel, turns back then to side, reach the liquid outlet through the minim channel in 2 processes.And 1
The sprue width of process is bigger than the sprue width of 2 processes.
By adopting the above technical scheme, what can be reached has the technical effect that the present invention
The present invention provides a kind of asymmetric double process liquid cooling plates of curved end surface, using liquid-cooling heat radiation technology, in liquid cooling
It is provided with thin fin in plate, makes the fluid for entering 1 process of liquid cooling plate from inlet, is entering minim channel by several thin fins
It inside exchanges heat, the fluid of microchannel converges to liquid cooling plate bottom end, dredges by bottom end curved surface, uniform to flow into 2 processes
Minim channel, have better mobile performance and even temperature effect, most flowed out afterwards through liquid outlet.Furthermore the introducing of thin fin increases
Contact area with fluid has bigger heat exchange amount, improves the heat dissipation performance of radiator.
The present invention provides a kind of asymmetric double process liquid cooling plate of curved end surface, flow path bodies are arranged in N-shaped.Due to stream
Temperature is lower when body has just enter into cold plate, therefore opposite 2 process of the temperature difference in 1 process between fluid and cold plate is larger, according to changing
For hot correlation it is found that if the coefficient of heat transfer is identical, the heat exchange amount in 1 process is greater than 2 processes, thus cause heat exchange amount inconsistent from
And making hot source temperature inconsistent, uniform temperature is poor.In consideration of it, by the width design of 1 process at 2 processes are greater than, according to matter
Conservation is measured, the fluid average speed in 2 processes is larger, thus the Reynolds number in identical minim channel is larger, changes to increase
Hot coefficient improves heat exchange amount, therefore reduces the gap with heat exchange amount in 1 process, to be effectively improved the average temperature performance of liquid cooling plate.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 shows the partial sectional view of oblique fin liquid-cooling heat radiator top view.
Fig. 2 shows the full sectional views of oblique fin liquid-cooling heat radiator.
Fig. 3 shows the appearance schematic three dimensional views of oblique fin liquid-cooling heat radiator.
Specific embodiment
In order to illustrate more clearly of the present invention, the present invention is done further below with reference to preferred embodiments and drawings
It is bright.Similar component is indicated in attached drawing with identical appended drawing reference.It will be appreciated by those skilled in the art that institute is specific below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
The present invention provides a kind of asymmetric double process liquid cooling plates of curved end surface, as shown in Figures 1 to 3, comprising: shell 3,
An inlet 1 and a liquid outlet 2 for 3 front end of shell, fluid enter sprue from inlet, inlet with go out
Liquid mouth has been distributed around sprue 4 and provides support and dispersing fluid, has multiple row flat apart from the inlet and liquid outlet a distance
The thin fin 5 of row arrangement.The double-flow that cold plate uses, wherein the runner between the inlet 1 and the liquid outlet 2 is N-shaped
Arrangement, the runner is in the shell 3, and the thin fin 5 and sprue 4 are on the shell 3.The housing bottom is curved surface
Design has water conservancy diversion, effect that is thermally conductive and reducing power consumption.
In the present invention, when carrying out heat transfer process, heat source side is fitted closely with cold plate lower surface, and shell 3 is used as heat transfer
Heat is transmitted to fluid by medium.And fluid enters sprue by inlet 1, is then shunted by sprue 4 and enters each thin fin 5
Between microchannel, last fluid converges in 3 bottom end of shell, and fluid enters the thin wing in another process along curved surface bottom end
Liquid outlet is arrived at finally by the sprue in exit in microchannel between piece 5；In process fluid flow with shell 3, sprue 4 with
And the thin contact of fin 5 exchanges heat, so that heat be taken out of from liquid outlet 2.Thin fin 5 is in a device with thermally conductive and water conservancy diversion
Effect.
In the preferred embodiment of the present invention, the thin fin 5 is in cuboid, shell 3, sprue 4 and thin fin 5
With preferable corrosion resistance, oxidisability.Due to thin fin 5, the heat exchange area of fluid increases, and heat exchange amount is increased, to fill
It sets with better heat exchange property.It is arranged using double-flow, increases the utilization rate of fluid.The song that 3 bottom end of shell uses
Face is designed as obtained by gradient optimal method, which greatly improves the uniformity of flowing, reduces unnecessary pressure drop damage
It loses, while increasing temperature uniformity.Double-flow is arranged as unsymmetric form, and for 2 processes since the temperature difference is small, use is smaller
Sectional area increase flow velocity, fluid Reynolds number can be increased, and then increase the coefficient of heat transfer to enhance heat exchange, improve heat exchange amount, this sets
Meter greatly improves the even temperature effect of radiator.
In specific embodiment of the present invention, the material of the shell 3, sprue 4 and thin fin 5 is 6063,6061
The aluminum materials such as number aluminium alloy greatly reduce cold plate quality, increase the energy density of battery pack.
In specific embodiment of the present invention, the quantity of the thin fin 5 can with appropriate adjustment, 1 process and 2 processes it
Between width ratio can be with appropriate adjustment, to meet the heat exchange size and samming requirement of specific battery pack.
It radiates present invention is mainly used for cooling, but equally applicable for warming.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention may be used also on the basis of the above description for those of ordinary skill in the art
To make other variations or changes in different ways, all embodiments can not be exhaustive here, it is all to belong to this hair
The obvious changes or variations that bright technical solution is extended out are still in the scope of protection of the present invention.
Claims (7)
1. a kind of asymmetric double process liquid cooling plate of curved end surface, which is characterized in that be provided with shell, an inlet, one
Liquid outlet, several sprues, several thin rectangular shape fins.The inlet is located at the front end of cold plate with liquid outlet and sprue, described
Several thin fins are located in sprue, and at a distance of same interval between fin, sprue is divided into several microchannels.The shell
Bottom end is curved design.Double-flow arranges at N-shaped, and inlet side is 1 process, and liquid outlet side is 2 processes, and the width of 1 process
Greater than the width of 2 processes.
2. a kind of asymmetric double process liquid cooling plate of curved end surface according to claim 1, which is characterized in that the shell
Material be the aluminum materials such as 6063, No. 6061 aluminium alloys.
3. a kind of asymmetric double process liquid cooling plate of curved end surface according to claim 1, which is characterized in that described unique
Feed liquor face is located at the front end of 1 process of liquid cooling plate, and shape is rounded, and is parallel to liquid cooling plate upper surface.
4. a kind of asymmetric double process liquid cooling plate of curved end surface according to claim 1, which is characterized in that described unique
Liquid level is located at the front end of 2 process of liquid cooling plate out, and shape is rounded, and is parallel to liquid cooling plate upper surface.
5. a kind of asymmetric double process liquid cooling plate of curved end surface according to claim 1, which is characterized in that the thin wing
Piece is cuboid.
6. a kind of asymmetric double process liquid cooling plate of curved end surface according to claim 1, which is characterized in that the shell
Bottom end is a curved design, which is using the flow variance between each microchannel as point of penetration, by gradient optimal method
Obtained by step by step calculation.
7. a kind of asymmetric double process liquid cooling plate of curved end surface according to claim 1, which is characterized in that sprue is in
N-shaped arrangement, fluid enters radiator by the inlet, into the minim channel in 1 process after reach liquid cooling plate bottom,
It turns back then to side, reaches the liquid outlet through the minim channel in 2 processes.And 1 process sprue than 2 processes mainstream
Road is wider.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910292287.2A CN109950656A (en) | 2019-04-12 | 2019-04-12 | A kind of asymmetric double process liquid cooling plate of curved end surface |
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| CN201910292287.2A CN109950656A (en) | 2019-04-12 | 2019-04-12 | A kind of asymmetric double process liquid cooling plate of curved end surface |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112566468A (en) * | 2020-12-10 | 2021-03-26 | 南京航空航天大学 | Airborne self-adaptive heat exchange system |
| CN115279111A (en) * | 2021-04-30 | 2022-11-01 | 深圳市英维克科技股份有限公司 | Liquid cooling plate and heat dissipation equipment |
| US11698233B2 (en) | 2020-12-26 | 2023-07-11 | International Business Machines Corporation | Reduced pressure drop cold plate transition |
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| CN107966056A (en) * | 2017-12-26 | 2018-04-27 | 豫新汽车空调股份有限公司 | A kind of liquid cooling plate with inner fin enhanced heat exchange |
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| CN109546265A (en) * | 2019-01-14 | 2019-03-29 | 广东合新材料研究院有限公司 | Battery liquid cooling radiator structure and power supply device |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20050257921A1 (en) * | 2004-05-21 | 2005-11-24 | Valeo, Inc. | Multi-type fins for multi-exchangers |
| CN108039434A (en) * | 2017-12-05 | 2018-05-15 | 北京普莱德新能源电池科技有限公司 | A kind of integral type water cooling power battery box |
| CN107966056A (en) * | 2017-12-26 | 2018-04-27 | 豫新汽车空调股份有限公司 | A kind of liquid cooling plate with inner fin enhanced heat exchange |
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| CN109141083A (en) * | 2018-10-11 | 2019-01-04 | 广东索特能源科技有限公司 | A kind of novel primary surface heat exchanger applied to fuel cell |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112566468A (en) * | 2020-12-10 | 2021-03-26 | 南京航空航天大学 | Airborne self-adaptive heat exchange system |
| CN112566468B (en) * | 2020-12-10 | 2022-03-18 | 南京航空航天大学 | Airborne self-adaptive heat exchange system |
| US11698233B2 (en) | 2020-12-26 | 2023-07-11 | International Business Machines Corporation | Reduced pressure drop cold plate transition |
| CN115279111A (en) * | 2021-04-30 | 2022-11-01 | 深圳市英维克科技股份有限公司 | Liquid cooling plate and heat dissipation equipment |
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Application publication date: 20190628 |
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