A lightweight liquid cooling box

Abstract

The present invention discloses a lightweight liquid cooling box, including a support frame, an upper plate is arranged above the support frame, a flow channel plate for increasing the flow uniformity of the cooling medium is installed between the support frame and the upper plate, a liquid cooling system is formed between the upper plate and the flow channel plate by brazing, a number of rivet nuts are installed around the top surface of the upper plate, which pass through the inside of the flow channel plate and extend into the support frame, the flow channel plate is provided with four stamped rectangular cavities and side cavities interconnected with the rectangular cavities, the flow channel plate is provided with a three-way cavity interconnected with two of the rectangular cavities and an L-shaped cavity interconnected with the other two rectangular cavities. The present invention can effectively optimize the heat transfer and flow uniformity of the cooling liquid, and can significantly reduce the weight while increasing the overall structural strength, and can ensure that the upper surface of the upper plate has a good flatness.

Description

Technical Field

[0001] The invention relates to the technical field of liquid cooling boxes, and in particular to a lightweight liquid cooling box. Background Art

[0002] With the rapid development of the electric vehicle market and the widespread application of renewable energy, battery technology, as one of the key components, has increasingly higher requirements for performance and life. Batteries generate a lot of heat when discharging or charging at high power, so an effective cooling system is needed to stabilize their operating temperature, extend their life and improve their performance. In existing liquid cooling boxes, small pipes and cooling channels are usually used. The cooling liquid maintains an orderly and stable laminar state along the pipe wall when flowing, and the flow rate distribution is relatively uniform, which limits the heat dissipation power density of the fluid per unit area. Under high power density requirements, it may not be able to effectively absorb and take away the heat generated by the battery. Summary of the invention

[0003] In view of the deficiencies of the prior art, the purpose of the present invention is to provide a lightweight liquid cooling box to solve the problem mentioned in the background art that the heat dissipation power density of the fluid in the unit area of ​​the liquid cooling box is limited and cannot effectively absorb the heat generated by the battery.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a lightweight liquid cooling box, comprising a support frame, an upper plate is arranged above the support frame, a flow channel plate for increasing the flow uniformity of the cooling medium is installed between the support frame and the upper plate, a liquid cooling system is formed between the upper plate and the flow channel plate by brazing, and a plurality of rivet nuts are installed around the top surface of the upper plate, which pass through the inside of the flow channel plate and extend into the support frame;

[0005] The flow channel plate is provided with four stamped rectangular cavities and side cavities interconnected with the rectangular cavities, the flow channel plate is provided with a three-way cavity interconnected with two of the rectangular cavities and an L-shaped cavity interconnected with the other two rectangular cavities, a nozzle structure for interconnecting with the three-way cavity and the L-shaped cavity is plugged on the upper flat plate, the rectangular cavity connected with the L-shaped cavity is installed with an "X" array frame for making the cooling medium flow in multiple channels and increasing the length of the flow path, and a plurality of protrusion structures for cooling medium diversion are arranged inside the rectangular cavity and the side cavities.

[0006] Preferably, the ""-shaped"" array frame is composed of a plurality of channel strips for forming turbulent flow of the cooling medium on the flow channel plate, and the height of the channel strips is consistent with the depth of the rectangular cavity, and two adjacent channel strips are staggered and connected;

[0007] The channel strip is composed of a plurality of "X"-shaped structures connected together.

[0008] Preferably, the top of the protruding structure fits with the bottom of the upper plate, and the edges of the protruding structure are chamfered.

[0009] Preferably, the support frame is formed by four side reinforcing ribs connected in sequence to form a rectangular frame, and the top surface of the rectangular frame is in contact with the edges of the bottom surface of the flow channel plate, and three transverse reinforcing ribs are installed between two side reinforcing ribs arranged side by side;

[0010] The material used for the support frame is one of glass fiber polyurethane composite reinforced material and plastic rigid reinforced material.

[0011] Preferably, the width of the transverse reinforcing ribs is consistent with the spacing between two adjacent rectangular cavities, and the four groups of gaps formed by the three transverse reinforcing ribs in the rectangular frame are all adapted to the width of the rectangular cavities.

[0012] Preferably, one side of the top of the three transverse reinforcing ribs is provided with a groove 1 for clamping the side concave cavity area on the flow channel plate, and the other side of two transverse reinforcing ribs is provided with a groove 2 for clamping the three-way cavity and the L-shaped cavity on the flow channel plate.

[0013] Preferably, four insulation plates are fixedly mounted inside the support frame, and the top surface of the insulation plate fits with the bottom of the rectangular cavity set on the flow channel plate, and three equidistantly arranged protective bottom plates are installed at the bottom of the support frame.

[0014] Preferably, side beams are installed on both sides of the top surface of the upper plate, and bolts passing through the upper plate are installed on the side beams.

[0015] By means of the above technical solution, the present invention provides a lightweight liquid cooling box, which has at least the following beneficial effects:

[0016] 1. The present invention forms a liquid cooling system by brazing a flow channel plate formed by stamping with an upper flat plate, supplies cooling liquid into the liquid cooling system through a nozzle structure, and cooperates with a number of protruding structures to divert the cooling liquid, causing eddy currents and turbulence, thereby enhancing the heat transfer effect. In addition, in conjunction with a "X" array frame, the heat exchange effect between the cooling liquid and the channel wall is further enhanced, and the heat transfer and flow uniformity of the cooling liquid are optimized.

[0017] 2. The present invention utilizes a plurality of channel strips to be staggered to form an "X" array frame, thereby further disrupting the flow state of the cooling liquid in the flow channel, increasing its turbulence, and thus improving the heat exchange efficiency.

[0018] 3. The raised structure provided on the flow channel plate of the present invention and the top surfaces of several channel strips are all in contact with the bottom surface of the upper flat plate, which can effectively support the upper flat plate, and at the same time increase the overall structural strength of the liquid cooling box, ensure that the upper surface of the upper flat plate has good flatness.

[0019] 4. The present invention utilizes a support frame to support the edges and the middle of the liquid cooling system to enhance the structural strength of the liquid cooling system composed of the upper plate and the flow channel plate. At the same time, the support frame made of glass fiber polyurethane composite reinforcement material or plastic rigid reinforcement material can greatly reduce the weight of the liquid cooling box without sacrificing the strength and stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the installation structure of the transverse reinforcing rib and the protective bottom plate of the present invention;

[0023] Figure 3 It is a schematic diagram of the installation structure of the upper plate and the nozzle structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the thermal insulation board and the transverse reinforcing ribs of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the support frame of the present invention;

[0026] Figure 6 Schematic diagram of the bottom structure of the flow channel plate of the present invention;

[0027] Figure 7 Schematic diagram of the top structure of the flow channel plate of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the digital array frame of the present invention.

[0029] In the figure:

[0030] 1. Support frame; 101. Side reinforcement ribs; 102. Horizontal reinforcement ribs; 1021. Groove 1; 1022. Groove 2; 2. Upper plate; 201. Side beam; 3. Flow channel plate; 301. Rectangular cavity; 302. Side cavity; 303. Three-way cavity; 304. L-shaped cavity; 305. Nozzle structure; 306. Array frame; 3061. Channel strip; 307. Raised structure; 4. Rivet nut; 5. Insulation board; 6. Protective bottom plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0032] Embodiment 1

[0033] In order to effectively solve the problem that the heat dissipation power density of the fluid in the unit area of ​​the liquid cooling box is limited and cannot effectively absorb the heat generated by the battery, please refer to Figure 1-Figure 8 The present embodiment proposes a lightweight liquid cooling box, which has a support frame 1. A flow channel plate 3 and an upper flat plate 2 are arranged above the support frame 1 in sequence from bottom to top, and a liquid cooling system is formed between the flow channel plate 3 and the upper flat plate 2 by brazing. In addition, a number of rivet nuts 4 pass downward through the edges of the liquid cooling system and extend into the interior of the support frame 1. The liquid cooling system and the support frame 1 are assembled by rivets, which can ensure that the surface of the upper flat plate 2 has good flatness and form a liquid cooling heat dissipation box.

[0034] like Figure 1-Figure 8As shown, the flow channel plate 3 of this embodiment is provided with four stamped rectangular cavities 301 and side cavities 302 interconnected with the rectangular cavities 301, the flow channel plate 3 is provided with a three-way cavity 303 interconnected with two of the rectangular cavities 301 and an L-shaped cavity 304 interconnected with the other two rectangular cavities 301, a nozzle structure 305 for interconnecting with the three-way cavity 303 and the L-shaped cavity 304 is plugged on the upper flat plate 2, a "S" array frame 306 for making the cooling medium flow in multiple channels and increasing the length of the flow path is installed in the rectangular cavity 301 connected to the L-shaped cavity 304, and a plurality of protrusion structures 307 for cooling medium diversion are arranged inside the rectangular cavity 301 and the side cavity 302.

[0035] Specifically, side beams 201 are installed on both sides of the top surface of the upper plate 2, and bolts passing through the upper plate 2 are installed on the side beams 201. The two side beams 201 are used to increase the foot bone strength of the entire liquid cooling box, and provide additional support and fixing points for other external devices.

[0036] More specifically, four insulation boards 5 are fixedly mounted inside the support frame 1, and the top surface of the insulation board 5 is in contact with the bottom of the rectangular cavity 301 provided on the flow channel plate 3, and three equally spaced protective bottom boards 6 are installed at the bottom of the support frame 1. The insulation board 5 can effectively reduce the heat loss at the bottom of the liquid cooling box, and the protective bottom board 6 can effectively prevent the bottom of the insulation board 5 from directly contacting the surface of other objects when the liquid cooling box is placed.

[0037] It is worth mentioning that in this embodiment, the cooling liquid flows along one of the nozzle structures 305 to the liquid cooling system formed by brazing the flow channel plate 3 and the upper plate 2. The cooling liquid first flows along the path of the three-way cavity 303 to the inside of the two rectangular cavities 301 at the rear relatively quickly, and then gathers in the side cavity 302. With the continuous flow of the cooling liquid, it is again diverted to the inside of the two rectangular cavities 301 at the front. During the flow of the cooling liquid, the laminar state of the liquid flow can be broken by the raised structure 307, causing eddy currents and turbulence, thereby enhancing the heat transfer effect. In addition, the two "X" array frames 306 arranged on the entire flow channel plate 3 for the cooling liquid to flow through the rear half of the channel are used to guide the cooling liquid to produce strong turbulence and eddy currents, thereby further enhancing the heat exchange effect between the cooling liquid and the channel wall. Optimize the heat transfer and flow uniformity of the cooling liquid.

[0038] Embodiment 2

[0039] The "X" array frame 306 is composed of a plurality of channel strips 3061 connected to form turbulent flow of the cooling medium on the flow channel plate 3. Two adjacent channel strips 3061 are staggered and connected. The channel strips 3061 are composed of a plurality of "X"-shaped structures connected. The flow state of the cooling liquid in the flow channel can be further disturbed, and the turbulence degree can be increased, thereby improving the heat exchange efficiency. The turbulent flow can also promote the mixing and heat transfer of the liquid, so that the heat is more evenly distributed in the entire flow channel.

[0040] Embodiment 3

[0041] The height of the channel strip 3061 is consistent with the depth of the rectangular cavity 301, the top of the protruding structure 307 is in contact with the bottom of the upper plate 2, and the edges of the protruding structure 307 are all chamfered. The channel strip 3061 and the protruding structure 307 are arranged so that the top surface is in contact with the bottom surface of the upper plate 2, which can effectively support the upper plate 2, and at the same time increase the overall structural strength of the liquid cooling box, it can ensure that the upper surface of the upper plate 2 has a good flatness.

[0042] Embodiment 4

[0043] The support frame 1 is formed of four side reinforcing ribs 101 that are closed and connected in sequence to form a rectangular frame, and the top surface of the rectangular frame fits the edges of the bottom surface of the flow channel plate 3. Three transverse reinforcing ribs 102 are installed between the two side reinforcing ribs 101 arranged side by side. The material used for the support frame 1 is a glass fiber polyurethane composite reinforced material. The support frame 1 is used to support the edges and the middle of the liquid cooling system to enhance the structural strength of the liquid cooling system composed of the upper plate 2 and the flow channel plate 3, and to prevent the upper plate 2 and the flow channel plate 3 from being bent and deformed. In addition, the support frame 1 is made of a glass fiber polyurethane composite reinforced material, which has a higher strength-to-weight ratio. Compared with the traditional metal structure, it can greatly reduce the weight of the liquid cooling box without sacrificing the strength and stability of the structure.

[0044] Embodiment 5

[0045] The support frame 1 is made of a plastic rigid reinforced material, which is lighter than the support frame 1 made of a glass fiber polyurethane composite material, and can further reduce the overall weight of the liquid cooling box, which is beneficial to the handling and installation of the equipment.

[0046] Embodiment 6

[0047] The width of the transverse reinforcing rib 102 is consistent with the spacing between two adjacent rectangular concave cavities 301, and the four groups of gaps formed by the three transverse reinforcing ribs 102 in the rectangular frame are all adapted to the width of the rectangular concave cavities 301. A groove 1021 for clamping the side concave cavities 302 on the flow channel plate 3 is provided on one side of the top of the three transverse reinforcing ribs 102, and a groove 2 1022 for clamping the three-way concave cavity 303 and the L-shaped concave cavity 304 on the flow channel plate 3 is provided on the other side of the two transverse reinforcing ribs 102. When the flow channel plate 3 with a set shape is combined with the support frame 1, the clamping effect of the groove 1 1021 and the groove 2 1022 on the set position on the flow channel plate 3 can be used to easily align the position between the two before the rivet nut 4 is used to combine the flow channel plate 3 and the support frame 1, so as to be more conducive to the position of the hole groove required for installing the rivet nut 4 in the corresponding flow channel plate 3 and the support frame 1.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lightweight liquid cooling box, comprising a support frame (1), characterized in that: An upper plate (2) is arranged above the support frame (1); a flow channel plate (3) for increasing the flow uniformity of the cooling medium is installed between the support frame (1) and the upper plate (2); a liquid cooling system is formed between the upper plate (2) and the flow channel plate (3) by brazing; and a plurality of rivet nuts (4) are installed around the top surface of the upper plate (2) and pass through the interior of the flow channel plate (3) and extend into the support frame (1); The flow channel plate (3) is provided with four stamped rectangular cavities (301) and side cavities (302) interconnected with the rectangular cavities (301); the flow channel plate (3) is provided with a three-way cavity (303) interconnected with two of the rectangular cavities (301) and an L-shaped cavity (304) interconnected with the other two rectangular cavities (301); a nozzle structure (305) for interconnecting the three-way cavity (303) and the L-shaped cavity (304) is plugged into the upper plate (2); a ""-" array frame (306) for making the cooling medium flow in a multi-channel dispersed manner and increasing the length of the flow path is installed in the rectangular cavity (301) communicating with the L-shaped cavity (304); and a plurality of protrusion structures (307) for diverting the cooling medium are arranged inside the rectangular cavity (301) and the side cavities (302); The ""-shaped"" array frame (306) is composed of a plurality of channel bars (3061) connected together to form a turbulent flow of the cooling medium on the flow channel plate (3), wherein the height of the channel bars (3061) is consistent with the depth of the rectangular cavity (301), and two adjacent channel bars (3061) are connected in a staggered manner; The channel strip (3061) is composed of a plurality of "X"-shaped structures connected together; The top of the raised structure (307) fits with the bottom of the upper plate (2), and the edges of the raised structure (307) are all provided with chamfers.

2. A lightweight liquid cooling box according to claim 1, characterized in that: The support frame (1) is formed by four side reinforcing ribs (101) which are closed and connected in sequence to form a rectangular frame, and the top surface of the rectangular frame is in contact with the edges of the bottom surface of the flow channel plate (3), and three transverse reinforcing ribs (102) are installed between two side reinforcing ribs (101) arranged side by side; The material used for the support frame (1) is one of a glass fiber polyurethane composite reinforced material and a plastic rigid reinforced material.

3. A lightweight liquid cooling box according to claim 2, characterized in that: The width of the transverse reinforcing ribs (102) is consistent with the spacing between two adjacent rectangular concave cavities (301), and the four groups of gaps formed by the three transverse reinforcing ribs (102) in the rectangular frame are all adapted to the width of the rectangular concave cavities (301).

4. A lightweight liquid cooling box according to claim 3, characterized in that: One side of the top of each of the three transverse reinforcing ribs (102) is provided with a groove 1 (1021) for clamping the upper side concave cavity (302) of the flow channel plate (3), and the other side of each of the two transverse reinforcing ribs (102) is provided with a groove 2 (1022) for clamping the three-way concave cavity (303) and the L-shaped concave cavity (304) on the flow channel plate (3).

5. A lightweight liquid cooling box according to claim 4, characterized in that: Four insulation plates (5) are fixedly mounted inside the support frame (1), and the top surface of the insulation plate (5) fits the bottom of the rectangular cavity (301) provided on the flow channel plate (3). Three protective bottom plates (6) are installed at equal distances at the bottom of the support frame (1).

6. A lightweight liquid cooling box according to claim 1, characterized in that: Side beams (201) are installed on both sides of the top surface of the upper plate (2), and bolts passing through the upper plate (2) are installed on the side beams (201).

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