CN112188803B - Water-cooling plate assembly - Google Patents
Water-cooling plate assembly Download PDFInfo
- Publication number
- CN112188803B CN112188803B CN202011047553.4A CN202011047553A CN112188803B CN 112188803 B CN112188803 B CN 112188803B CN 202011047553 A CN202011047553 A CN 202011047553A CN 112188803 B CN112188803 B CN 112188803B
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- plate
- cooling
- water
- layer plate
- brazing
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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 plate, a middle plate and a lower plate through brazing, brazing filler metals are arranged on the upper end face and the lower end face of the middle plate, and a cooling flow channel is formed between the middle plate and the lower plate; the upper layer plate is a mounting surface of the water-cooling plate body. According to the invention, the water-cooling plate body is divided into an upper layer structure, a middle layer structure and a lower layer structure, and the upper layer plate, the middle layer plate and the lower layer plate are connected together in a brazing manner, so that the thicknesses 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 workpiece and the water-cooling plate body are conveniently connected, the workpiece can be directly placed and fixed on the upper layer plate, and the heat conduction coefficient of the sheet metal stamping part is high because the thickness of the upper layer plate is thin, so that 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 the water-cooling structure of the new energy automobile charger and the DCDC is designed, a die casting mode is often adopted to manufacture the water-cooling structure, however, the die casting wall thickness is about 3mm, so that the weight of the water-cooling structure is large; the cost of the die casting die is high; in addition, in order to ensure the airtight 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, the die casting has low heat conductivity coefficient, and the heat dissipation effect of the power module is poor, so that the heat dissipation performance of the product is poor.
Disclosure of Invention
The invention aims at: 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 assembly with good heat dissipation and light weight is provided.
In order to achieve the above object, the present invention provides the following technical solutions:
the water-cooling plate assembly comprises a water-cooling plate body, wherein the water-cooling plate body is formed by connecting an upper plate, a middle plate and a lower plate through brazing, brazing filler metals are arranged on the upper end face and the lower end face of the middle plate, and a cooling flow channel is formed between the middle plate and the lower plate; the upper layer plate is a mounting surface of the water-cooling plate body.
According to the invention, the water-cooling plate body is divided into the upper layer structure, the middle layer structure and the lower layer structure, and the upper layer plate, the middle layer plate and the lower layer plate are connected together in a brazing manner, so that the thicknesses 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 workpiece and the water-cooling plate body are conveniently connected, the workpiece can be directly placed and fixed on the upper layer plate, and the heat conduction coefficient of the sheet metal stamping part is high because the thickness of the upper layer plate is thin, so that the heat of the workpiece is easily taken away by the cooling flow channel, and the heat dissipation effect of the workpiece is enhanced.
Further, 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 a workpiece can be pressed on the water-cooling plate body; the installing column is matched with the bolt for use, so that a 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 studs are matched with nuts for mounting components closely attached to the upper plate; the mounting posts cooperate with the bolts for mounting the component suspended above the upper plate. The connecting structure is simple and the installation is convenient.
Further, the middle part of the lower layer plate is concave downwards and is used for containing cooling liquid, and the middle layer plate is connected with the lower layer plate in a brazing way and forms a closed cooling flow passage. The lower layer plate is concave downwards, the middle layer plate is flat, and the lower layer plate and the middle layer plate are matched to form a closed cooling flow passage.
Further, in the concave structure of the lower layer plate, a plurality of bosses which are uniformly arranged are arranged in the direction towards 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 layer plate; because the top of boss is pasted with the middle layer board for the structural strength of whole cooling runner can be strengthened, and then the structural strength of water-cooling plate body has been strengthened.
Further, the top of the boss is connected with the middle layer plate through brazing. The boss is brazed on the middle layer plate, so that the structural strength of the cooling flow channel is enhanced, and the heat conduction is facilitated on the other side, so that the cooling efficiency is accelerated; in addition, the larger the boss is, the denser the boss interval is, the better the structural strength of the water-cooling plate body is, but the poorer the boss stamping formability is, and in order to ensure the structural strength of the water-cooling plate body and meet the process manufacturing of stamping forming, the most suitable boss size and interval are finally determined through repeated simulation.
Further, the boss is formed by punching and is in a truncated cone shape. The boss is the round platform form for the top and the intermediate lamella of boss are the face contact, have strengthened the structural strength of water-cooling board body, and the heat dissipation condition of work piece is improved to the boss simultaneously that can be very big.
Further, the upper plate and the middle plate are provided with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are both connected with a cooling liquid joint, the cooling liquid joint is in a horn shape, the small end of the horn shape is connected with a cooling liquid pipeline, and the large end of the horn shape is fixed on the water cooling plate body in a brazing way. When the water cooling plate is used for water inflow, the horn-shaped cooling liquid joint provides a buffer area for water flow, so that the impact force received by the cooling flow channel is reduced, the recoil force of water flow at the joint is reduced, and the flow resistance of cooling liquid is reduced.
Further, the whole outline of the cooling flow passage is quadrilateral, and the two cooling liquid joints are respectively close to two ends of any diagonal line of the quadrilateral cooling flow passage. The two cooling liquids are arranged in a diagonal line, so that the outflow of the cooling water is facilitated, and the uniform heat dissipation of the water cooling plate is facilitated.
Further, a long-strip-shaped flow guide boss is arranged at the position, close to the cooling liquid joint, of the lower layer 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 of the diversion boss. The long-strip-shaped flow guide boss improves the strength of the cooling flow channel at the liquid inlet and the liquid outlet, so that the cooling flow channel can bear the pressure of 250 KPa; in addition, the long-strip-shaped flow guide boss is favorable for uniform dispersion of the cooling liquid and plays a role in flow equalization.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows: the water-cooling plate body is divided into an upper layer structure, a middle layer structure and a lower layer structure, and the upper layer plate, the middle layer plate and the lower layer plate are connected together in a brazing manner, so that the thicknesses 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 workpiece and the water-cooling plate body are conveniently connected, the workpiece can be directly placed and fixed on the upper layer plate, and the heat conduction coefficient of the sheet metal stamping part is high because the thickness of the upper layer plate is thin, so that 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 included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain 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 structural view of the lower plate and the coolant joint.
Fig. 6 shows a simulated cloud of cooling fluid flow in a cooling flow channel.
Wherein the above figures include the following reference numerals:
1, an upper layer plate; 2 middle layer plate; 3, a lower layer plate; 31 bosses; 32 flow guide bosses; 4 studs; 5, mounting a column; 6, a liquid inlet; 7, a liquid outlet; and 8, a cooling liquid joint.
Detailed Description
It is noted that 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 unless otherwise indicated.
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 to 4, 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 1, a middle layer plate 2 and a lower layer plate 3 through brazing, brazing filler metals are 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 a mounting surface of the water-cooled plate body.
Preferably, the upper plate 1 is connected with a stud 4 with external threads and a mounting post 5 with internal threads by means of press riveting.
Preferably, the studs 4 cooperate with nuts for mounting components that are in close proximity to the upper plate 1; the mounting posts 5 cooperate with the bolts for mounting components suspended above the upper plate 1.
Preferably, the middle part of the lower layer plate 3 is concave downwards and is used for containing cooling liquid, and the middle layer plate 2 is in braze joint with the lower layer plate 3 and forms a closed cooling flow passage.
Preferably, in the concave structure of the lower layer plate 3, a plurality of evenly arranged bosses 31 are arranged towards the middle layer plate 2, and the tops of the bosses 31 are attached to the middle layer plate 2.
Preferably, the top of the boss 31 is joined to the middle layer 2 by brazing.
Preferably, the boss 31 is formed by punching and has a 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 connected with a cooling liquid joint 8, the cooling liquid joint 8 is in a horn shape, the small end of the horn shape is connected with a cooling liquid pipeline, and the large end of the horn shape is fixed on the water cooling plate body in a brazing way.
Preferably, the overall outline of the cooling flow passage is quadrilateral, and the two cooling liquid joints 8 are respectively close to two ends of any diagonal line of the quadrilateral cooling flow passage.
As shown in fig. 5 and 6, preferably, the lower plate 3 is provided with an elongated guide boss 32 near the coolant joint 8, and the guide boss 32 is near a diagonal line beside the coolant joint 8; the cooling liquid flowing in from the liquid inlet 6 flows to the liquid outlet 7 through the diversion of the diversion boss 32.
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 large, and the long guide boss 32 well plays a role in enhancing the local structural strength and facilitating the diversion of the cooling liquid; the guide boss 32 is also attached to the middle layer 2 by brazing.
Specifically, the lower plate 3 can be made of 3003 aluminum alloy with the thickness of 1 mm; the middle layer plate 2 can adopt a 4343/3003/4343 double-sided conforming plate with the thickness of 1 mm; the upper plate 1 can be made of 3003 aluminum alloy with the thickness of 2 mm; stainless steel can be adopted for the stud 4 and the mounting column 5; the tunnel furnace continuous brazing is adopted, and the upper layer plate 1, the middle layer plate 2 and the lower layer plate 3 are connected together, so that the final water-cooling plate assembly has the advantages of light weight, low manufacturing cost, good heat dissipation performance and the like.
Specifically, the mounting locations of the stud 4 and the mounting post 5 are preferably located on the boss 31 in the vertical direction.
The scope of the invention is not to be limited by the embodiments described above, but by the appended claims and their equivalents.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (5)
1. The 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 plate (1), a middle plate (2) and a lower plate (3) through brazing, brazing filler metals are arranged on the upper end face and the lower end face of the middle plate (2), and a cooling flow channel is formed between the middle plate (2) and the lower plate (3); the upper layer plate (1) is a mounting surface of the water-cooling plate body;
the middle part of the lower layer plate (3) is concave downwards and is used for containing cooling liquid, and the middle layer plate (2) is connected with the lower layer plate (3) in a brazing way and forms a closed cooling flow passage;
a plurality of bosses (31) which are uniformly arranged are arranged in the concave structure of the lower layer plate (3) towards the middle layer plate (2), and the tops of the bosses (31) are attached to the middle layer plate (2);
the top of the boss (31) is connected with the middle layer plate (2) through brazing;
the upper layer plate (1) and the middle layer 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 in a horn shape, the small end of the horn shape is connected with a cooling liquid pipe, and the large end of the horn shape is fixed on the water cooling plate body through brazing;
a strip-shaped flow guide boss (32) is arranged at the position, close to the cooling liquid joint (8), of the lower layer plate (3), and the flow guide boss (32) is close to a diagonal line beside the cooling liquid joint (8); the cooling liquid flowing in from the liquid inlet (6) flows to the liquid outlet (7) through the diversion of the diversion boss (32).
2. The water-cooled panel assembly according to claim 1, characterized in that the upper panel (1) is connected by press riveting with a stud (4) with external threads and a mounting post (5) with internal threads.
3. The water cooled panel assembly of claim 2 wherein the studs (4) cooperate with nuts for mounting components against the upper panel (1); the mounting column (5) is matched with the bolt and is used for mounting a part suspended above the upper layer plate (1).
4. The water cooled panel assembly of claim 1 wherein the boss (31) is stamped and formed in a truncated cone shape.
5. The water cooling plate assembly according to claim 1, wherein the cooling flow passage has a quadrangular overall contour, and two of the cooling liquid joints (8) are respectively adjacent to both ends of any diagonal line of the quadrangular cooling flow passage.
Priority Applications (1)
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CN202011047553.4A CN112188803B (en) | 2020-09-29 | 2020-09-29 | Water-cooling plate assembly |
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CN202011047553.4A CN112188803B (en) | 2020-09-29 | 2020-09-29 | Water-cooling plate assembly |
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CN112188803A CN112188803A (en) | 2021-01-05 |
CN112188803B true CN112188803B (en) | 2023-05-30 |
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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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