Harmonica tube type liquid cooling plate

Abstract

The application discloses a harmonica tube type liquid cooling plate. The harmonica tube type liquid cooling plate comprises a harmonica tube, a rib plate is arranged in the harmonica tube to form an S-shaped flow guide groove, and the starting end and the ending end of the S-shaped flow guide groove are located on the first side of the harmonica tube; a first side edge beam is welded to the first side of the harmonica tube, the first side edge beam is in sealed connection with the edge of the S-shaped flow guide groove, the first side edge beam forms an entering water storage cavity and an outflow water storage cavity on the side away from the harmonica tube, the entering water storage cavity is in communication with the starting end of the S-shaped flow guide groove, and the outflow water storage cavity is in communication with the ending end of the S-shaped flow guide groove; and a second side edge beam is welded to the second side of the harmonica tube, and the second side edge beam is in sealed connection with the edge of the S-shaped flow guide groove. The embodiment of the application realizes one-side water inlet and outlet of the harmonica type liquid cooling plate, increases the cooling circulation distance, and thus reduces the cost and improves the space utilization.

Description

Technical Field

[0001] This application relates to the field of automotive liquid cooling plate technology, specifically to a harmonica tube type liquid cooling plate. Background Technology

[0002] Currently, there are three main manufacturing processes for liquid cooling plates in new energy vehicles: blow molding, brazing, and extruded profile stirring welding.

[0003] Inflatable liquid cooling plates have advantages such as low cost, good heat exchange effect and high production efficiency, but low material strength and poor mechanical properties; brazed liquid cooling plates have advantages such as high strength and the ability to connect thin and thick plates, but brazing is polluting, costly and has high process requirements; extruded profile stirring welding has advantages such as good reliability and high surface flatness, but has disadvantages such as complex processing and low space utilization.

[0004] Harmonica tube-type liquid cooling plates are a type of extruded profile stir welding method. They utilize the internal cavity of the harmonica tube as the cooling water channel, offering advantages such as low cost, light weight, high strength, simple structure, and high production efficiency. The sides of the harmonica tube are connected to the side beams via friction stir welding to ensure a seal. Currently, most harmonica tube-type liquid cooling plates on the market are unidirectional flow, requiring not only stir welding connections to the side beams but also sealing between the harmonica tubes, resulting in complex processing and low space utilization. Summary of the Invention

[0005] This application provides a harmonica tube type liquid cooling plate, which can realize unilateral water inlet and outlet of the harmonica type liquid cooling plate, increase the cooling circulation distance, thereby reducing costs and improving space utilization, and solving the technical problems of existing harmonica tube type liquid cooling plates that are unidirectional flow, resulting in complex processing and low space utilization.

[0006] This application provides a harmonica tube type liquid cooling plate, including:

[0007] A harmonica tube, wherein ribs are provided inside the harmonica tube to form an S-shaped guide groove, and the starting end and the ending end of the S-shaped guide groove are located on the first side of the harmonica tube;

[0008] The first side beam is welded to the first side of the harmonica tube. The first side beam is sealed to the edge of the S-shaped guide channel. The first side beam forms an inlet water storage chamber and an outlet water storage chamber on the side away from the harmonica tube. The inlet water storage chamber is connected to the starting end of the S-shaped guide channel, and the outlet water storage chamber is connected to the ending end of the S-shaped guide channel.

[0009] The second side beam is welded to the second side of the harmonica tube, and the second side beam is sealed to the edge of the S-shaped guide groove.

[0010] Furthermore, the first side beam and the second side beam are arranged in parallel, the ribs are arranged at equal intervals, and the ends of the ribs are staggered to the first side beam and the second side beam.

[0011] Furthermore, the first side beam is provided with multiple water inlet holes corresponding to the starting end of the S-shaped guide channel, and the water inlet holes connect the water storage chamber to the starting end of the S-shaped guide channel.

[0012] Furthermore, the first side beam is provided with a plurality of water outlet holes corresponding to the end of the S-shaped guide channel, and the water outlet holes connect the outflow storage cavity to the end of the S-shaped guide channel.

[0013] Furthermore, the surface of the first side beam opposite to the harmonica tube is provided with a water inlet and a water outlet. The water inlet is connected to the water inlet storage chamber, and the water outlet is connected to the water outlet storage chamber.

[0014] Furthermore, the first side beam is provided with a cavity, and a plug is provided in the cavity between the water inlet and the water outlet, the plug dividing the cavity into the water inlet cavity and the water outlet cavity.

[0015] Furthermore, the surface of the first side beam facing the harmonica tube is provided with a first water channel groove, which is engaged with the rib plate connected to the first side beam.

[0016] Furthermore, a second water channel groove is provided on the side surface of the second side beam facing the harmonica tube, and the second water channel groove is engaged with the rib plate connected to the second side beam.

[0017] Furthermore, the harmonica tube, the first side beam, and the second side beam have the same thickness; the thickness of the harmonica tube-type liquid cooling plate is less than or equal to 7.5 mm.

[0018] Furthermore, a first rib, a second rib, and a third rib are sequentially arranged inside the harmonica tube. The first rib and the third rib are both connected to the first side beam. The first rib and the third rib are both spaced apart from the second side beam. The second rib is connected to the second side beam. The second rib is spaced apart from the first side beam, so that the S-shaped guide channel is a sealed flow channel structure from its starting end to its ending end.

[0019] The harmonica tube-type liquid cooling plate provided in this application embodiment has a flow guide groove arranged inside the harmonica tube, side beams sealed at both ends of the harmonica tube, and an inlet and an outlet on one side beam. This realizes single-sided water inlet and outlet of the harmonica-type liquid cooling plate, increases the cooling circulation distance, thereby reducing costs and improving space utilization. Attached Figure Description

[0020] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the structure of the harmonica tube-type liquid cooling plate provided in an embodiment of this application.

[0022] Figure 2 for Figure 1 A cross-sectional view of the provided harmonica tube-type liquid cooling plate along the AA direction.

[0023] Figure 3 This is a schematic diagram of the structure of a harmonica tube provided in an embodiment of this application.

[0024] Figure 4 This is a structural schematic diagram of the first side beam provided in an embodiment of this application.

[0025] Figure 5 This is a structural schematic diagram of the second side beam provided in an embodiment of this application.

[0026] In the diagram: 1. Harmonica tube; 2. First side beam; 3. Second side beam; 11. Rib plate; 12. S-shaped guide channel; 21. Inlet; 22. Outlet; 23. Plug; 24. Entering the water storage chamber; 25. Inlet hole; 26, 27. First water channel groove; 28. Outlet hole; 29. ​​Flowing out of the water storage chamber; 31. Second water channel groove. Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] In the description of this application, it should be understood that the terms "thickness," "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] This application provides a harmonica tube-type liquid cooling plate, suitable for cooling power batteries in new energy vehicles.

[0031] For details, please refer to Figures 1 to 3 This application provides a harmonica tube type liquid cooling plate, comprising:

[0032] The harmonica tube 1 has a rib plate 11 inside it to form an S-shaped guide groove 12. The starting end and the ending end of the S-shaped guide groove 12 are located on the first side of the harmonica tube 1.

[0033] The first side beam 2 is welded to the first side of the harmonica tube 1. The first side beam 2 is sealed to the edge of the S-shaped guide channel 12. The first side beam 2 forms an inlet water storage chamber 24 and an outlet water storage chamber 29 on the side away from the harmonica tube 1. The inlet water storage chamber 24 is connected to the starting end of the S-shaped guide channel 12, and the outlet water storage chamber 29 is connected to the ending end of the S-shaped guide channel 12.

[0034] The second side beam 3 is welded to the second side of the harmonica tube 1, and the second side beam 3 is sealed to the edge of the S-shaped guide groove 12.

[0035] Please see Figure 1 , Figure 2The first side beam 2 and the second side beam 3 are arranged in parallel, the ribs 11 are arranged at equal intervals, and the ends of the ribs 11 are staggered to the first side beam 2 and the second side beam 3.

[0036] Please see Figure 4 The first side beam 2 is provided with a plurality of water inlet holes 25 corresponding to the starting end of the S-shaped guide channel 12. The water inlet holes 25 connect the water storage chamber 24 to the starting end of the S-shaped guide channel 12.

[0037] Please see Figure 4 The first side beam 2 is provided with a plurality of water outlet holes 28 corresponding to the end of the S-shaped guide channel 12. The water outlet holes 28 connect the outflow storage cavity 29 to the end of the S-shaped guide channel 12.

[0038] Please see Figure 4 The first side beam 2 has an inlet 21 and an outlet 22 on the side surface opposite to the harmonica tube 1. The inlet 21 is connected to the water storage chamber 24, and the outlet 22 is connected to the water storage chamber 29.

[0039] Please see Figure 4 The first side beam 2 has a cavity, and a plug 23 is provided in the cavity between the inlet 21 and the outlet 22. The plug 23 divides the cavity into the inlet water storage cavity 24 and the outlet water storage cavity 29. The plug 23 controls the direction of water inflow and outflow, allowing the coolant to flow from the inlet hole 25 into the inlet water storage cavity 24, then into the cavity between the inlet hole 25 and the harmonica tube 1. The coolant flows back and forth through the S-shaped guide channel 12, and after passing through the outlet hole 28, it enters the outlet water storage cavity 29 and finally flows out of the outlet 22.

[0040] Please see Figure 3 , Figure 4 The first side beam 2 has a first water channel groove 26, 27 on the side surface facing the harmonica tube 1. The first water channel groove 26, 27 is engaged with the rib plate 11 connected to the first side beam 2.

[0041] Furthermore, the second side beam 3 has a second water channel groove 31 on the side surface facing the harmonica tube 1, and the second water channel groove 31 is correspondingly engaged with the rib plate 11 connected to the second side beam 3.

[0042] The system includes first water channel slots 26 and 27 and a second water channel slot 31. Due to the conical guiding effect of the water channel slots, they automatically abut and tighten against the rib plate 11 inside the harmonica tube 1, achieving a sealing effect. The mechanical cooperation between the water channel slots and the harmonica tube 1 reduces the number of stir welding operations, thereby lowering costs, increasing efficiency, and improving product space utilization.

[0043] Furthermore, the harmonica tube 1, the first side beam 2, and the second side beam 3 have the same thickness; the thickness of the harmonica tube-type liquid cooling plate is less than or equal to 7.5 mm.

[0044] Please see Figure 3 The harmonica tube 1 is provided with a first rib 111, a second rib 112 and a third rib 113 in sequence. The first rib 111 and the third rib 113 are both connected to the first side beam 2. The first rib 11 and the third rib 112 are both spaced apart from the second side beam 3. The second rib 112 is connected to the second side beam 3. The second rib 112 is spaced apart from the first side beam 2, so that the S-shaped guide channel 12 is a sealed flow channel structure from its starting end to its ending end.

[0045] For details, please refer to Figure 3 , Figure 4 The first rib 111 is engaged with the first waterway slot 26, the second rib 112 is engaged with the second waterway slot 31, and the third rib 113 is engaged with the first waterway slot 27.

[0046] In the embodiment, the harmonica-style liquid cooling plate uses 6063-T6 aluminum alloy as the extruded profile. The high-strength aluminum alloy material reduces the profile thickness, allowing the liquid cooling plate thickness to be reduced to 7.5mm. To achieve single-sided water inlet and outlet for the harmonica-style liquid cooling plate, a water channel groove is designed on the side beam. The mechanical cooperation between the water channel groove and the harmonica tube 1 reduces the number of stir welding operations, thereby reducing costs, improving efficiency, and increasing product space utilization.

[0047] The assembly and welding sequence of the harmonica tube type liquid cooling plate provided in this application embodiment is as follows:

[0048] S1. The first side beam 2 and the plug 23 are welded together by friction stir welding. The structure is lap piercing welding. The welding speed is 1m / min. This isolates the inlet and outlet water channels of the cavity in the first side beam 2. The plug 23 divides the cavity into an inlet water storage chamber 24 and an outlet water storage chamber 29.

[0049] S2, the first side beam 2 is paired with the inlet 21 and the outlet 22 and welded using argon arc welding;

[0050] S3, harmonica tube 1, first side beam 2 and second side beam 3 are assembled together. The first water channel grooves 26 and 27 of the first side beam 2 and the second water channel groove 31 of the second side beam 3 automatically fit and press against the rib plate 11 inside the harmonica tube 1 due to their own conical guiding effect, so as to play a sealing role. The harmonica tube 1, first side beam 2 and second side beam 3 are welded together by friction stir welding. The structure is butt lock bottom welding. The welding speed is 1.6m / min. The four welds on the front and back are welded to make the harmonica tube 1, first side beam 2 and second side beam 3 a whole.

[0051] S4. Use argon arc welding to repair the keyhole of friction stir welding, and weld the side gaps of harmonica tube 1, first side beam 2 and second side beam 3 to seal the liquid cooling plate as a whole.

[0052] The harmonica tube-type liquid cooling plate provided in this application embodiment has a flow guide groove arranged inside the harmonica tube, side beams sealed at both ends of the harmonica tube, and an inlet and an outlet on one side beam. This realizes single-sided water inlet and outlet of the harmonica-type liquid cooling plate, increases the cooling circulation distance, thereby reducing costs and improving space utilization.

[0053] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0054] The above provides a detailed description of a harmonica tube-type liquid cooling plate provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A harmonica tube-type liquid cooling plate, characterized in that, include: A harmonica tube, wherein ribs are provided inside the harmonica tube to form an S-shaped guide groove, and the starting end and the ending end of the S-shaped guide groove are located on the first side of the harmonica tube; The first side beam is welded to the first side of the harmonica tube. The first side beam is sealed to the edge of the S-shaped guide channel. The first side beam forms an inlet water storage chamber and an outlet water storage chamber on the side away from the harmonica tube. The inlet water storage chamber is connected to the starting end of the S-shaped guide channel, and the outlet water storage chamber is connected to the ending end of the S-shaped guide channel. The second side beam is welded to the second side of the harmonica tube, and the second side beam is sealed to the edge of the S-shaped guide groove; The first side beam is provided with multiple water inlet holes at the starting end of the S-shaped guide channel, and the water inlet holes connect the water entering the storage chamber to the starting end of the S-shaped guide channel; the first side beam is provided with multiple water outlet holes at the ending end of the S-shaped guide channel, and the water outlet holes connect the water flowing out of the storage chamber to the ending end of the S-shaped guide channel. The first side beam has an inlet and an outlet on the side facing away from the harmonica tube. The inlet is connected to the water inlet chamber, and the outlet is connected to the water outlet chamber. The first side beam has a cavity, and a plug is provided between the inlet and the outlet in the cavity. The plug divides the cavity into the water inlet chamber and the water outlet chamber. The harmonica tube is provided with a first rib, a second rib, and a third rib in sequence. The first rib and the third rib are both connected to the first side beam. The first rib and the third rib are both spaced apart from the second side beam. The second rib is connected to the second side beam. The second rib is spaced apart from the first side beam, so that the S-shaped guide channel is a sealed flow channel structure from its starting end to its ending end. The harmonica tube, the first side beam, and the second side beam have the same thickness; the extruded profile of the harmonica tube liquid cooling plate is made of aluminum alloy 6063-T6; and the thickness of the harmonica tube liquid cooling plate is less than or equal to 7.5 mm.

2. The harmonica tube type liquid cooling plate as described in claim 1, characterized in that, The first side beam and the second side beam are arranged in parallel, the ribs are arranged at equal intervals, and the ends of the ribs are staggered to the first side beam and the second side beam.

3. The harmonica tube type liquid cooling plate as described in claim 1, characterized in that, The first side beam has a first water channel groove on the side surface facing the harmonica tube, and the first water channel groove is engaged with the rib plate connected to the first side beam.

4. The harmonica tube type liquid cooling plate as described in claim 1, characterized in that, The second side beam has a second water channel groove on the side surface facing the harmonica tube, and the second water channel groove is engaged with the rib plate connected to the second side beam.

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