A three-way joint automobile battery liquid cooling plate and its processing technology

Abstract

The present invention relates to a three-way joint for automobile batteries, comprising a collecting pipe structure, wherein both upper and lower ends of the collecting pipe structure are sleeved with sealing cap structures by means of a snap-fitting manner, the collecting pipe structure comprises a left side surface, a right side surface, a front side surface and a rear side surface, wherein one of the side surfaces is connected through a connecting seat structure, a nozzle structure is arranged on the connecting seat structure, and a central axis of the nozzle structure is arranged parallel to one of the side surfaces, the collecting pipe structure, the connecting seat structure and the nozzle structure are combined into a three-way joint structure by means of an assembly manner, and cooling pipe hole structures are arranged on the other three side surfaces of the collecting pipe structure, and each of the cooling pipe hole structures can be inserted with a cooling pipe structure, and the cooling pipe structure is a flat and long extruded part, and a plurality of air-permeable square hole structures are arranged in parallel at equal distances on the cooling pipe structure.

Description

Technical Field

[0001] The invention relates to an automobile battery liquid cooling device, in particular to an automobile battery liquid cooling plate with a three-way joint and a processing technology thereof. Background Art

[0002] In order to make the battery heat dissipation more uniform and sufficient, the existing automotive battery liquid cooling plate is designed to cover the entire module cavity. At the same time, the problem is that the inlet and outlet joints will increase accordingly in the entire module and waste space and cost. At the same time, since the inlet and outlet joints will take up a lot of space and affect the overall layout and heat exchange of the liquid cooling plate, the efficiency of battery cooling is reduced, the space utilization rate is reduced, the production cost of the product is increased, and the heat exchange efficiency is reduced. Therefore, it is necessary to design a three-way joint automotive battery liquid cooling plate and its processing technology to solve the above problems. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in order to overcome the deficiencies and defects in the prior art, the present invention provides a three-way joint automotive battery liquid cooling plate and a processing technology thereof, which can effectively save space and improve heat exchange efficiency.

[0004] In order to solve the above technical problems, the present invention discloses a three-way joint for an automobile battery liquid cooling plate, comprising a collecting pipe structure, wherein both upper and lower ends of the collecting pipe structure are provided with sealing cap structures by a snap-fitting manner, the collecting pipe structure comprises a left side, a right side, a front side and a rear side, one of the side surfaces is connected through a connecting seat structure, a nozzle structure is provided on the connecting seat structure, a central axis of the nozzle structure is arranged parallel to one of the side surfaces, the collecting pipe structure, the connecting seat structure and the nozzle structure are combined into a three-way joint structure by assembly, cooling pipe hole structures are provided on the other three side surfaces of the collecting pipe structure, each of the cooling pipe hole structures can be inserted with a cooling pipe structure, the cooling pipe structure is a flat and long extruded part, and a plurality of air-permeable square hole structures are arranged in parallel at equal distances on the cooling pipe structure.

[0005] A further improvement of the present invention is that the collector structure is a high-frequency welded tube in a rectangular shape, and the material of the collector structure is an aluminum plate with a composite layer on the outer layer.

[0006] A further improvement of the present invention is that the sealing cap structure is a rectangular aluminum plate stamping part, the material of the sealing cap structure is a double-sided composite aluminum plate, and the sealing cap structure is stamped into a hat shape using the double-sided composite aluminum plate.

[0007] A further improvement of the present invention is that: the connecting seat structure is a cuboid processed part, one end of the connecting seat structure is milled into a convex table structure, and the material of the connecting seat structure is a conventional aluminum block.

[0008] A further improvement of the present invention is that the nozzle structure is in a cylindrical shape, and a plurality of the air-permeable square hole structures are arranged inside the nozzle structure, each of the air-permeable square hole structures can be ventilated, and the overall shape is a harmonica shape.

[0009] A further improvement of the present invention is that: step one, processing the collecting pipe structure; step two, processing the sealing cap structure; step three: processing the connecting seat structure; step four: processing the nozzle structure; step five: after assembling the collecting pipe structure, the connecting seat structure and the cooling pipe structure, when they are put into the furnace for high-temperature brazing, the composite layer outside the material melts and all the parts can be welded together.

[0010] A further improvement of the present invention is that: the collecting pipe structure in step one is folded into a rectangular shape by a folding process, and then the joints are welded by a high-frequency welding process, and the material is cut into small sections according to specific lengths, and three sides of the collecting pipe structure are punched, the size of the hole grooves is consistent with the outer dimensions of the cooling pipe structure, and the fourth side is punched with a square hole that is consistent with the matching size of the connecting seat structure.

[0011] A further improvement of the present invention is that the raised part of the sealing cap structure in step two needs to be finally inserted into the upper and lower ends of the collecting tube structure, so the size of the raised part of the sealing cap structure is consistent with the size inside the collecting tube structure, which can ensure the tightness after installation. The sealing cap structure is provided with a brim structure around it, and the brim structure is bonded to the outer periphery of the wall thickness of the collecting tube structure. After bonding, the area of ​​the welding surface can be increased, making the welding position more firm. After being assembled with the collecting tube structure, when it is put into the furnace for high-temperature brazing, the composite layer outside the material melts and the collecting tube structure and the sealing cap structure are connected together by welding.

[0012] A further improvement of the present invention is that the connecting seat structure in step three is inserted into the square hole punched on the fourth surface of the collecting pipe structure, which facilitates the riveting fixation between the two and also connects the two together. The connecting seat structure starts from the boss surface structure to the inner shell to ensure the shell wall thickness. A circular hole is punched on one side plane of the connecting seat structure, and the circular hole penetrates into the inner cavity of the connecting seat structure, so that the entire joint is finally ventilated.

[0013] A further improvement of the present invention is that the material of the nozzle structure in step four is selected from conventional aluminum rods, the outer shape is machined into the required size structure to meet the assembly with the customer's pipe connector mother part, the interior is machined into an internal through hole of a certain size, the size is set according to customer requirements, the internal through hole is directly connected to the inner cavity of the connecting seat structure, so that the connecting seat structure and the nozzle structure are connected together, and the aluminum rod is extruded into a variable length shape using a cold extrusion process.

[0014] Beneficial effects of the present invention:

[0015] The present invention combines the single-side joints of all the liquid cooling plates into a three-way joint design, which can better save space without affecting the overall layout and heat exchange of the liquid cooling plate, so that the battery cooling is more uniform and efficient. Therefore, the liquid cooling plate collector structure, the sealing cap structure, the connecting seat structure and the nozzle structure are assembled and combined into a three-way joint. When the antifreeze liquid is filled into the connecting seat structure from the nozzle structure and enters the collector structure, the antifreeze liquid is divided into three paths, respectively entering and exiting the three cooling pipe structures, and finally entering the product core for heat exchange. The overall heat dissipation of the liquid cooling plate is more uniform, the space utilization rate is improved, the product cost is reduced, the heat exchange efficiency is improved, the overall practicability and operability are achieved, and it has broad market application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the automobile battery liquid cooling plate with a three-way connector in the present invention.

[0017] Figure 2 It is a schematic diagram of the interior of the automobile battery liquid cooling plate of the three-way connector in the present invention.

[0018] Description of the drawings: 1-collecting pipe structure, 2-sealing cap structure, 3-connecting seat structure, 4-nozzle structure, 5-cooling pipe structure, 6-breathable square hole structure, 7-three-way joint structure, 8-cooling pipe hole structure. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The present embodiment provides a three-way joint for an automobile battery liquid cooling plate, including a collector structure 1, wherein the collector structure 1 is a high-frequency welded tube in a rectangular shape, and the material of the collector structure 1 is an outer layer of a composite aluminum plate, and the upper and lower ends of the collector structure 1 are both provided with a cap structure 2 by a snap-fitting manner, and the cap structure 2 is a rectangular aluminum plate stamping part, and the material of the cap structure 2 is a double-sided composite aluminum plate, and the cap structure 2 is stamped into a hat shape by using a double-sided composite aluminum plate.

[0021] The collecting pipe structure 1 includes a left side, a right side, a front side and a rear side, one of which is connected with a connecting seat structure 3, the connecting seat structure 3 is a rectangular processed part, one end of the connecting seat structure 3 is milled into a convex table structure, the material of the connecting seat structure 3 is a conventional aluminum block, a nozzle structure 4 is arranged on the connecting seat structure 3, the nozzle structure 4 is cylindrical, a plurality of the breathable square hole structures 6 are arranged inside it, each of the breathable square hole structures 6 can be ventilated, and the overall shape is a harmonica shape, the central axis of the nozzle structure 4 is arranged parallel to one of the side surfaces, the collecting pipe structure 1, the connecting seat structure 3 and the nozzle structure 4 are assembled into a three-way joint structure 7, the other three sides of the collecting pipe structure 1 are provided with cooling pipe hole structures 8, each of the cooling pipe hole structures 8 can be inserted with a cooling pipe structure 5, the cooling pipe structure 5 is a flat and long extruded part, and a plurality of the breathable square hole structures 6 are arranged in parallel at equal distances on the cooling pipe structure 5.

[0022] The processing technology of the automobile battery liquid cooling plate with a three-way joint of the present invention is as follows:

[0023] Step one, processing the collecting tube structure, the collecting tube structure is folded into a rectangular shape by a folding process, and then the joints are welded by a high-frequency welding process, and the material is cut into small sections according to the specific length, and three sides of the collecting tube structure are punched. The size of the hole groove is consistent with the outer dimensions of the cooling tube structure, and the fourth side is punched with a square hole consistent with the matching size of the connecting seat structure.

[0024] Step two, processing the sealing cap structure. The raised part of the sealing cap structure needs to be finally inserted into the upper and lower ends of the collecting tube structure, so the size of the raised part of the sealing cap structure is consistent with the size inside the collecting tube structure, which can ensure the tightness after installation. The sealing cap structure is provided with a brim structure around it, and the brim structure is bonded to the outer periphery of the wall thickness of the collecting tube structure. After bonding, the area of ​​the welding surface can be increased, making the welding position more firm. After being assembled with the collecting tube structure, when it is put into the furnace for high-temperature brazing, the composite layer outside the material melts and the collecting tube structure and the sealing cap structure are connected together by welding.

[0025] Step three: Process the connecting seat structure, and insert the connecting seat structure into the square hole punched on the fourth surface of the collecting pipe structure to facilitate the riveting fixation between the two and connect the two together. The connecting seat structure starts from the boss surface structure to the inner shell to ensure the shell wall thickness. A circular hole is punched on one side plane of the connecting seat structure, and the circular hole penetrates into the inner cavity of the connecting seat structure, so that the entire joint is finally ventilated.

[0026] Step 4: Process the nozzle structure. The material of the nozzle structure is conventional aluminum rod. The outer shape is machined into the required size structure to meet the assembly with the customer's pipeline connector. The inside is machined into an inner through hole of a certain size. The size is set according to customer requirements. The inner through hole goes straight through the inner cavity of the connecting seat structure, so that the connecting seat structure and the nozzle structure are connected together. The aluminum rod is extruded into a variable length shape using a cold extrusion process.

[0027] Step 5: After the collecting pipe structure, the connecting seat structure and the cooling pipe structure are assembled and put into a furnace for high-temperature brazing, the composite layer outside the material melts and all the parts can be welded together.

[0028] Beneficial effects of the present invention:

[0029] The present invention combines the single-side joints of all the liquid cooling plates into a three-way joint design, which can better save space without affecting the overall layout and heat exchange of the liquid cooling plate, so that the battery cooling is more uniform and efficient. Therefore, the liquid cooling plate collector structure, the sealing cap structure, the connecting seat structure and the nozzle structure are assembled and combined into a three-way joint. When the antifreeze liquid is filled into the connecting seat structure from the nozzle structure and enters the collector structure, the antifreeze liquid is divided into three paths, respectively entering and exiting the three cooling pipe structures, and finally entering the product core for heat exchange. The overall heat dissipation of the liquid cooling plate is more uniform, the space utilization rate is improved, the product cost is reduced, the heat exchange efficiency is improved, the overall practicability and operability are achieved, and it has broad market application prospects.

[0030] The above are only preferred embodiments of the present invention, but do not limit the patent scope of the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments, or replace some of the technical features with equivalent ones. Any equivalent structure made by using the contents of the present invention specification and drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A three-way joint automotive battery liquid cooling plate, characterized in that: It includes a collecting pipe structure, and the upper and lower ends of the collecting pipe structure are both provided with sealing cap structures by means of a snap-fitting manner. The collecting pipe structure includes a left side, a right side, a front side and a rear side, and one of the side surfaces is connected through a connecting seat structure, and a nozzle structure is arranged on the connecting seat structure, and the central axis of the nozzle structure is arranged parallel to one of the side surfaces. The collecting pipe structure, the connecting seat structure and the nozzle structure are combined into a three-way joint structure by means of an assembly manner, and cooling pipe hole structures are respectively provided on the other three side surfaces of the collecting pipe structure, and each of the cooling pipe hole structures can be inserted with a cooling pipe structure, and the cooling pipe structure is a flat and long extruded part, and a plurality of air-permeable square hole structures are arranged in parallel at equal distances on the cooling pipe structure.

2. The three-way connector automotive battery liquid cooling plate according to claim 1, characterized in that: The collector structure is a high-frequency welded tube in a rectangular shape, and the material of the collector structure is an aluminum plate with a composite layer on the outer layer.

3. The three-way connector automotive battery liquid cooling plate according to claim 1, characterized in that: The sealing cap structure is a rectangular aluminum plate stamping part, the material of the sealing cap structure is a double-sided composite aluminum plate, and the sealing cap structure is stamped into a hat shape by using a double-sided composite aluminum plate.

4. The three-way connector automotive battery liquid cooling plate according to claim 1, characterized in that: The connecting seat structure is a cuboid processed part, one end of the connecting seat structure is milled into a convex table structure, and the material of the connecting seat structure is an aluminum block.

5. The automobile battery liquid cooling plate with a three-way connector according to claim 1, characterized in that: The nozzle structure is in the shape of a cylinder, and a plurality of the air-permeable square hole structures are arranged inside the nozzle structure, each of the air-permeable square hole structures can be ventilated, and the overall shape is a harmonica shape.

6. The processing technology of the automobile battery liquid cooling plate with a three-way joint according to claim 1 is characterized in that: Step 1: Process the collecting pipe structure; Step 2: Process the sealing cap structure; Step 3: Process the connecting seat structure; Step 4: Process the nozzle structure; Step 5: After assembling the collecting pipe structure, the connecting seat structure and the cooling pipe structure and performing high-temperature brazing in the furnace, the composite layer outside the material melts and all the parts can be welded together.

7. The processing technology of the automobile battery liquid cooling plate with a three-way joint according to claim 6 is characterized in that: The collecting pipe structure in step one is folded into a rectangular shape by a folding process, and then the joints are welded by a high-frequency welding process. The material is cut into small sections according to specific lengths, and three sides of the collecting pipe structure are punched. The size of the hole grooves is consistent with the outer dimensions of the cooling pipe structure, and the fourth side is punched with a square hole that is consistent with the matching size of the connecting seat structure.

8. The processing technology of the automobile battery liquid cooling plate with a three-way joint according to claim 6 is characterized in that: The raised part of the sealing cap structure in step 2 needs to be finally inserted into the upper and lower ends of the collecting tube structure, so the size of the raised part of the sealing cap structure is consistent with the size inside the collecting tube structure, which can ensure the tightness after installation. The sealing cap structure is provided with a brim structure around it, and the brim structure is bonded to the outer periphery of the wall thickness of the collecting tube structure. After bonding, the area of ​​the welding surface can be increased, making the welding position more firm. After being assembled with the collecting tube structure, when it is put into the furnace for high-temperature brazing, the composite layer outside the material melts and the collecting tube structure and the sealing cap structure are connected together by welding.

9. The processing technology of the automobile battery liquid cooling plate with a three-way joint according to claim 6 is characterized in that: The connecting seat structure in step three is inserted into the square hole punched on the fourth surface of the collecting pipe structure, which facilitates the riveting fixation between the two and also connects the two together. The connecting seat structure starts from the boss surface structure to the inner shell to ensure the shell wall thickness. A circular hole is punched on the plane on one side of the connecting seat structure, and the circular hole penetrates into the inner cavity of the connecting seat structure, so that the entire joint is finally ventilated.

10. The processing technology of the automobile battery liquid cooling plate with a three-way joint according to claim 6 is characterized in that: The material of the nozzle structure in step 4 is aluminum rod, and the outer shape is machined into the required size structure to meet the assembly with the customer's pipe connector mother part. The interior is machined into an internal through hole of a certain size, and the size is set according to customer requirements. The internal through hole directly passes through the inner cavity of the connecting seat structure, so that the connecting seat structure and the nozzle structure are connected together, and the aluminum rod is extruded into a variable length shape using a cold extrusion process.

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