CN112188803A - Water cooling plate assembly - Google Patents
Water cooling plate assembly Download PDFInfo
- Publication number
- CN112188803A CN112188803A CN202011047553.4A CN202011047553A CN112188803A CN 112188803 A CN112188803 A CN 112188803A CN 202011047553 A CN202011047553 A CN 202011047553A CN 112188803 A CN112188803 A CN 112188803A
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- plate
- cooling
- water
- layer plate
- assembly according
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20927—Liquid coolant without phase change
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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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
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The invention discloses a water-cooling plate assembly which comprises a water-cooling plate body, wherein the water-cooling plate body is formed by connecting an upper layer plate, a middle layer plate and a lower layer plate through brazing, brazing filler metal is arranged on the upper end surface and the lower end surface of the middle layer plate, and a cooling flow channel is formed between the middle layer plate and the lower layer plate; the upper plate is a mounting surface of the water-cooling plate body. By adopting the invention, the water-cooling plate body is divided into an upper layer plate, a middle layer plate and a lower layer plate, and the upper layer plate, the middle layer plate and the lower layer plate are connected together in a brazing mode, so that the thickness of the upper layer plate, the middle layer plate and the lower layer plate can be reduced, and the weight of the whole water-cooling plate body is further reduced; the cooling flow channel is formed between the middle layer plate and the lower layer plate, so that the upper layer plate can be used as a mounting surface, the connection between a workpiece and the water cooling plate body is facilitated, the workpiece can be directly placed and fixed on the upper layer plate, the upper layer plate is thin, the heat conductivity coefficient of the metal plate stamping part is high, the heat of the workpiece is easily taken away by the cooling flow channel, and the heat dissipation effect of the workpiece is enhanced.
Description
Technical Field
The invention relates to a water-cooling plate, in particular to a water-cooling plate assembly.
Background
In the prior art, when a new energy automobile charger and a DCDC water cooling structure are designed, the water cooling structure is manufactured in a die-casting mode, however, the thickness of the die-casting wall is about 3mm, so that the weight of the water cooling structure is heavy; in addition, the cost of the die-casting die is high; in addition, in order to ensure the air tightness and reliability of the water cooling structure, the die casting needs to adopt friction stir welding to seal the water cooling structure, and the friction stir welding has high cost; in the use process, the die casting has low heat conductivity coefficient, the heat dissipation effect of the power module is poor, and the heat dissipation performance of the product is poor.
Disclosure of Invention
The invention aims to: aiming at the problems of poor heat dissipation performance and heavy weight of a die-casting water-cooling structure in the prior art, the water-cooling plate component with good heat dissipation performance and light weight is provided.
In order to achieve the above purpose, the invention provides the following technical scheme:
a water-cooling plate assembly comprises a water-cooling plate body, wherein the water-cooling plate body is formed by connecting an upper layer plate, a middle layer plate and a lower layer plate through brazing, brazing filler metal is arranged on the upper end surface and the lower end surface of the middle layer plate, and a cooling flow channel is formed between the middle layer plate and the lower layer plate; the upper plate is a mounting surface of the water-cooling plate body.
According to the invention adopting the technical scheme, the water-cooling plate body is divided into an upper layer plate, a middle layer plate and a lower layer plate, and the upper layer plate, the middle layer plate and the lower layer plate are connected together in a brazing mode, so that the thicknesses of the upper layer plate, the middle layer plate and the lower layer plate can be reduced, and further, the weight of the whole water-cooling plate body is reduced; the cooling flow channel is formed between the middle layer plate and the lower layer plate, so that the upper layer plate can be used as a mounting surface, the connection between a workpiece and the water cooling plate body is facilitated, the workpiece can be directly placed and fixed on the upper layer plate, the upper layer plate is thin, the heat conductivity coefficient of the metal plate stamping part is high, the heat of the workpiece is easily taken away by the cooling flow channel, and the heat dissipation effect of the workpiece is enhanced.
Furthermore, the upper plate is connected with a stud with external threads and a mounting column with internal threads in a press riveting mode. The stud is matched with the bolt for use, so that the workpiece can be tightly pressed on the water cooling plate body; the mounting columns are matched with the bolts for use, so that the workpiece can be suspended and fixed above the water cooling plate body, and the space above the water cooling plate body is reasonably utilized.
Further, the stud is matched with the nut and used for installing a component tightly attached to the upper plate; the mounting posts are matched with the bolts and used for mounting parts suspended above the upper plate. The connecting structure is simple and the installation is convenient.
Furthermore, the middle part of the lower plate is concave and used for containing cooling liquid, and the middle plate and the lower plate are connected in a brazing mode to form a closed cooling flow channel. The lower layer plate is concave, the middle layer plate is flat, and the lower layer plate and the middle layer plate are matched to form a closed cooling flow channel.
Furthermore, a plurality of bosses which are uniformly arranged are arranged in the concave structure of the lower layer plate and face the direction of the middle layer plate, and the tops of the bosses are attached to the middle layer plate. The boss enhances the structural strength of the lower plate; because the top of the boss is attached to the middle layer plate, the structural strength of the whole cooling flow channel is enhanced, and the structural strength of the water cooling plate body is further enhanced.
Further, the top of the boss and the middle laminate are joined together by brazing. The boss is brazed on the middle layer plate, so that the structural strength of the cooling flow channel is enhanced, the heat conduction is facilitated on the other side, and the cooling efficiency is accelerated; in addition, the bigger the boss is, the more the boss spacing is, the better the structural strength of the water cooling plate body is, but the worse the boss stamping formability is, in order to ensure the structural strength of the water cooling plate body and meet the requirement of the process manufacturing of stamping forming, the most appropriate boss size and spacing are finally determined through repeated simulation.
Further, the boss is formed by punching and is in a circular truncated cone shape. The boss is round platform form for the top and the well plywood of boss are face contact, have strengthened the structural strength of water-cooling plate body, and the boss can be very big improvement the heat dissipation condition of work piece simultaneously.
Further, a liquid inlet and a liquid outlet are formed in the upper layer plate and the middle layer plate, the liquid inlet and the liquid outlet are both connected with a cooling liquid joint, the cooling liquid joint is horn-shaped, a small end of the horn-shaped is connected with a cooling liquid pipeline, and a large end of the horn-shaped is brazed and fixed on the water-cooling plate body. When the water cooling plate enters water, the horn-shaped cooling liquid joint provides a buffer area for water flow, the impact force on the cooling flow channel is reduced, and the recoil force of the water flow at the joint is reduced, so that the flow resistance of the cooling liquid is reduced.
Furthermore, the whole outline of the cooling flow channel is quadrilateral, and the two cooling liquid joints are respectively close to two ends of any diagonal line of the quadrilateral cooling flow channel. Two coolants are diagonal, make things convenient for the outflow of cooling water, do benefit to the even heat dissipation of water-cooling board simultaneously.
Furthermore, a strip-shaped flow guide boss is arranged at the position, close to the cooling liquid joint, of the lower plate, and the flow guide boss is close to a diagonal line beside the cooling liquid joint; the cooling liquid flowing in from the liquid inlet flows to the liquid outlet through the diversion boss. The strip-shaped flow guide boss improves the strength of the inlet and the outlet of the cooling flow channel, so that the cooling flow channel can bear the pressure of 250 KPa; in addition, the long-strip-shaped flow guide boss is beneficial to uniform dispersion of the cooling liquid and plays a role in flow equalization.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that: the water-cooling plate body is divided into an upper layer plate, a middle layer plate and a lower layer plate, and the upper layer plate, the middle layer plate and the lower layer plate are connected together in a brazing mode, so that the thickness of the upper layer plate, the middle layer plate and the lower layer plate can be reduced, and the weight of the whole water-cooling plate body is further reduced; the cooling flow channel is formed between the middle layer plate and the lower layer plate, so that the upper layer plate can be used as a mounting surface, the connection between a workpiece and the water cooling plate body is facilitated, the workpiece can be directly placed and fixed on the upper layer plate, the upper layer plate is thin, the heat conductivity coefficient of the metal plate stamping part is high, the heat of the workpiece is easily taken away by the cooling flow channel, and the heat dissipation effect of the workpiece is enhanced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 shows a block diagram of a water cooled plate assembly of the present invention.
Fig. 2 shows an exploded view of fig. 1.
Fig. 3 shows a cross-sectional view of fig. 1.
Fig. 4 shows an enlarged view at a in fig. 3.
FIG. 5 shows a block diagram of the lower plate and coolant joints.
Fig. 6 shows a simulated cloud of the flow of coolant in the cooling channel.
Wherein the figures include the following reference numerals:
1, an upper layer plate; 2, a middle layer plate; 3, a lower layer plate; 31 a boss; 32 flow guide bosses; 4, a stud; 5, mounting a column; 6 liquid inlet; 7 a liquid outlet; 8 cooling liquid joint.
Detailed Description
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 4, a water-cooled plate assembly includes a water-cooled plate body, which is formed by connecting an upper plate 1, a middle plate 2 and a lower plate 3 by brazing, wherein brazing filler metal is disposed on upper and lower end surfaces of the middle plate 2, and a cooling channel is formed between the middle plate 2 and the lower plate 3; the upper plate 1 is a mounting surface of the water-cooling plate body.
Preferably, the upper plate 1 is connected with a stud 4 with external threads and a mounting post 5 with internal threads through a press riveting mode.
Preferably, the stud 4 is matched with a nut and used for installing a component tightly attached to the upper plate 1; the mounting posts 5 cooperate with the bolts for mounting components suspended above the upper deck 1.
Preferably, the middle part of the lower plate 3 is concave and used for containing cooling liquid, and the middle plate 2 and the lower plate 3 are connected by brazing to form a closed cooling flow channel.
Preferably, a plurality of bosses 31 are uniformly arranged in the concave structure of the lower plate 3 and face the direction of the middle plate 2, and the tops of the bosses 31 are attached to the middle plate 2.
Preferably, the top of the boss 31 and the middle laminate 2 are joined together by brazing.
Preferably, the boss 31 is formed by punching and has a circular truncated cone shape.
Preferably, the upper plate 1 and the middle plate 2 are provided with a liquid inlet 6 and a liquid outlet 7, the liquid inlet 6 and the liquid outlet 7 are both connected with a cooling liquid joint 8, the cooling liquid joint 8 is horn-shaped, the small end of the horn-shaped is connected with a cooling liquid pipeline, and the large end of the horn-shaped is brazed and fixed on the water-cooling plate body.
Preferably, the cooling flow channel has a quadrilateral overall contour, and the two coolant joints 8 are respectively close to two ends of any diagonal line of the quadrilateral cooling flow channel.
As shown in fig. 5 and 6, preferably, the lower plate 3 is provided with an elongated flow guide boss 32 at a position close to the coolant joint 8, and the flow guide boss 32 is close to a diagonal line beside the coolant joint 8; the cooling liquid flowing from the liquid inlet 6 is divided by the flow guide boss 32 and flows to the liquid outlet 7.
As can be clearly seen in fig. 6, the flow velocity of the cooling liquid at the liquid inlet 6 and the liquid outlet 7 is high, and the elongated flow guide bosses 32 well play a role in enhancing the local structural strength and facilitating the flow division of the cooling liquid; the flow guide projection 32 is likewise connected to the intermediate layer 2 by soldering.
Specifically, the lower plate 3 may be 3003 aluminum alloy with the thickness of 1 mm; the middle layer plate 2 can adopt 4343/3003/4343 double-sided plywood with the thickness of 1 mm; the upper plate 1 can adopt 3003 aluminum alloy with the thickness of 2 mm; the stud 4 and the mounting post 5 can be made of stainless steel; the tunnel furnace continuous brazing is adopted here to connect the upper plate 1, the middle plate 2 and the lower plate 3 together, so that the final water-cooling plate assembly has the advantages of light weight, low manufacturing cost, good heat dissipation and the like.
Specifically, the stud 4 and the mounting post 5 are preferably mounted on the boss 31 in the vertical direction.
The scope of the present invention is defined not by the above-described embodiments but by the appended claims and equivalents thereof.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A water cooling plate assembly comprises a water cooling plate body and is characterized in that the water cooling plate body is formed by connecting an upper layer plate (1), a middle layer plate (2) and a lower layer plate (3) through brazing, brazing filler metal is arranged on the upper end face and the lower end face of the middle layer plate (2), and a cooling flow channel is formed between the middle layer plate (2) and the lower layer plate (3); the upper plate (1) is an installation surface of the water cooling plate body.
2. The water cooled plate assembly according to claim 1, characterized in that the upper plate (1) is connected with externally threaded studs (4) and internally threaded mounting studs (5) by clinching.
3. A water cooled plate assembly according to claim 2, c h a r a c t e r i z e d in that the studs (4) cooperate with nuts for mounting a component against the upper plate (1); the mounting columns (5) are matched with bolts and used for mounting parts suspended above the upper plate (1).
4. The water-cooled plate assembly according to claim 1, characterized in that the middle part of the lower plate (3) is concave and used for containing cooling liquid, and the middle plate (2) is connected with the lower plate (3) in a brazing mode and forms a closed cooling flow channel.
5. The water-cooled plate assembly according to claim 4, characterized in that a plurality of uniformly arranged bosses (31) are arranged in a concave structure of the lower plate (3) towards the middle plate (2), and the tops of the bosses (31) are attached to the middle plate (2).
6. The water-cooled plate assembly according to claim 5, characterized in that the tops of the bosses (31) and the intermediate plate (2) are joined together by brazing.
7. The water cooled plate assembly according to claim 5, wherein the boss (31) is formed by stamping and is frustoconical.
8. The water cooling plate assembly according to claim 5, characterized in that a liquid inlet (6) and a liquid outlet (7) are formed in the upper plate (1) and the middle plate (2), the liquid inlet (6) and the liquid outlet (7) are both connected with a cooling liquid joint (8), the cooling liquid joint (8) is horn-shaped, a cooling liquid pipeline is connected with a small horn-shaped end, and a large horn-shaped end is fixed on the water cooling plate body in a brazing mode.
9. The water cooling plate assembly according to claim 8, wherein the overall contour of the cooling channel is quadrilateral, and two cooling liquid joints (8) are respectively close to two ends of any diagonal line of the quadrilateral cooling channel.
10. The water cooling plate assembly according to claim 9, characterized in that the lower plate (3) is provided with an elongated flow guiding boss (32) near the coolant joint (8), and the flow guiding boss (32) is near a diagonal beside the coolant joint (8); the cooling liquid flowing in from the liquid inlet (6) flows to the liquid outlet (7) through the diversion boss (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011047553.4A CN112188803B (en) | 2020-09-29 | 2020-09-29 | Water-cooling plate assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011047553.4A CN112188803B (en) | 2020-09-29 | 2020-09-29 | Water-cooling plate assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112188803A true CN112188803A (en) | 2021-01-05 |
| CN112188803B CN112188803B (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011047553.4A Active CN112188803B (en) | 2020-09-29 | 2020-09-29 | Water-cooling plate assembly |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002170915A (en) * | 2000-11-30 | 2002-06-14 | Toyo Radiator Co Ltd | Water-cooled heat sink |
| CN107863587A (en) * | 2017-10-31 | 2018-03-30 | 北京普莱德新能源电池科技有限公司 | A kind of electrokinetic cell cooled plate for soldering |
| CN208336445U (en) * | 2018-02-09 | 2019-01-04 | 合肥国轩高科动力能源有限公司 | A kind of battery pack water-cooled plate |
| CN208419316U (en) * | 2018-07-11 | 2019-01-22 | 苏州库宁换热系统科技有限公司 | A kind of water-cooled plate |
| CN208489335U (en) * | 2018-08-14 | 2019-02-12 | 北京北交新能科技有限公司 | A kind of water-cooled plate |
| CN210006868U (en) * | 2019-08-29 | 2020-01-31 | 蜂巢能源科技有限公司 | Cooling plate subassembly, battery package casing, battery package and vehicle |
-
2020
- 2020-09-29 CN CN202011047553.4A patent/CN112188803B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002170915A (en) * | 2000-11-30 | 2002-06-14 | Toyo Radiator Co Ltd | Water-cooled heat sink |
| CN107863587A (en) * | 2017-10-31 | 2018-03-30 | 北京普莱德新能源电池科技有限公司 | A kind of electrokinetic cell cooled plate for soldering |
| CN208336445U (en) * | 2018-02-09 | 2019-01-04 | 合肥国轩高科动力能源有限公司 | A kind of battery pack water-cooled plate |
| CN208419316U (en) * | 2018-07-11 | 2019-01-22 | 苏州库宁换热系统科技有限公司 | A kind of water-cooled plate |
| CN208489335U (en) * | 2018-08-14 | 2019-02-12 | 北京北交新能科技有限公司 | A kind of water-cooled plate |
| CN210006868U (en) * | 2019-08-29 | 2020-01-31 | 蜂巢能源科技有限公司 | Cooling plate subassembly, battery package casing, battery package and vehicle |
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| Publication number | Publication date |
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| CN112188803B (en) | 2023-05-30 |
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