Liquid cooling plate with good heat dissipation performance

Abstract

The utility model relates to the technical field of liquid cooling plates, in particular to a liquid cooling plate with good heat dissipation performance, which comprises a base plate and a plurality of flow channels arranged on the base plate, the base plate and the flow channels are integrally formed and are made of aluminum alloy materials, and the plurality of flow channels are arranged along the length direction of the base plate. The heat dissipation structure is compact in structure and reasonable in design, the heat dissipation efficiency is improved through structure optimization, the heat dissipation uniformity is also improved while the structural strength stability is considered, and the good use performance of the battery is ensured.

Description

Technical Field

[0001] This utility model relates to the field of liquid cooling plate technology, and in particular to a liquid cooling plate with good heat dissipation. Background Technology

[0002] With the continuous development of energy storage systems for new energy vehicles, batteries, as the core component of these systems, directly impact the driving performance of new energy vehicles. Liquid cooling plates, as crucial components of the battery thermal management system, primarily function to effectively transfer and dissipate the heat generated by the battery during operation through the circulation of coolant, thereby maintaining the battery within its optimal operating temperature range. However, traditional liquid cooling plates are mostly constructed from copper, stainless steel, or thick aluminum plates welded together, resulting in bulky structures, high production costs, and complex processing. This leads to heat accumulation on the cooling plate, hindering timely dissipation, uneven heat dissipation, and reduced heat dissipation efficiency, ultimately causing localized overheating of the battery and affecting its performance. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a liquid cooling plate with good heat dissipation, a compact and rationally designed structure, and improved heat dissipation efficiency through structural optimization. It also improves heat dissipation uniformity while ensuring structural strength and stability, thus ensuring good battery performance.

[0004] To achieve the above objectives, the present invention provides a liquid cooling plate with good heat dissipation, comprising a substrate and flow channels disposed on the substrate. The substrate and flow channels are integrally formed and both are made of aluminum alloy. Multiple flow channels are provided, and the multiple flow channels are arranged along the length direction of the substrate.

[0005] Preferably, the substrate is provided with a flow divider plate, the flow divider plate is provided with a flow divider channel, the flow divider channel is connected to multiple flow channels, the flow divider plate is provided with a connector, the connector is arranged perpendicular to the flow divider plate so that the connector is connected to the flow divider channel.

[0006] Preferably, the diverter plate is provided with a connector strip on the side near the substrate, a limiting strip is provided between the diverter plate and the connector strip, the substrate is provided with a connector groove, and the connector strip is connected to the connector groove so that the limiting strip stops contacting the outer edge of the substrate.

[0007] Preferably, the substrate is provided with an assembly, the assembly is provided with a mounting hole, and there are multiple assemblies, which are spaced apart along the length of the substrate.

[0008] Preferably, the assembly is provided with a first connecting hole and a connecting screw connected to the first connecting hole, the substrate is provided with a second connecting hole, and the connecting screw passes through the first connecting hole and connects to the second connecting hole.

[0009] Preferably, the cross-section of the flow channel is rectangular or trapezoidal.

[0010] The beneficial effects of this utility model are: compact structure and reasonable design, improved heat dissipation efficiency through structural optimization, and improved heat dissipation uniformity while taking into account structural strength and stability, thus ensuring good battery performance. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is an exploded structural diagram of the present invention.

[0013] Figure 3 This is a schematic diagram of the substrate structure of this utility model.

[0014] Figure 4 This is a schematic diagram of the flow divider structure of this utility model.

[0015] The reference numerals in the figures include:

[0016] 1—Substrate 11—Intercepting slot 12—Second connecting hole

[0017] 2—Flow channel

[0018] 3 – Diverter plate; 31 – Connector strip; 32 – Limiting strip

[0019] 4 - Diversion channel 5 - Connector

[0020] 6—Assembly parts; 61—Mounting hole; 62—First connecting hole

[0021] 63 — Connecting screw. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings.

[0023] like Figures 1 to 4 As shown, the present invention provides a liquid cooling plate with good heat dissipation, including a substrate 1 and flow channels 13 disposed on the substrate 1. The substrate 1 and the flow channels 13 are integrally formed and both are made of aluminum alloy. Multiple flow channels 13 are provided, and the multiple flow channels 13 are arranged along the length direction of the substrate 1.

[0024] Multiple flow channels 13 are arranged side-by-side on the substrate 1 and extend along the length of the substrate 1, which facilitates the flow of coolant and increases the flow path of coolant. The coolant circulates in the multiple flow channels 13, absorbs heat through contact between the substrate 1 and the battery, and then dissipates the heat in a timely manner through external cooling devices (such as water pumps, radiators, etc.). This structural design can evenly distribute the coolant. The surface of the liquid cooling plate is usually coated with a thermally conductive medium to enhance the heat conduction efficiency and heat dissipation efficiency. The substrate 1 and the multiple flow channels 13 are both made of aluminum alloy. Preferably, the aluminum alloy material is AL6063-T6 aluminum rod. The AL6063-T6 aluminum rod is preheated to 500°C and then extruded through a die. The substrate 1 and the flow channels 13 are integrally extruded. The substrate 1 made of aluminum alloy has thin walls and high structural strength, and good heat dissipation, so that the substrate 1 is manufactured with a width of 395mm, a thickness of 10.0mm, and a wall thickness of 1. The lightweight structure with a thickness of 0mm combines high strength and low cost, making it suitable for heat dissipation in large-size equipment. This allows the flow channel 13 to be manufactured to a length of 6.0mm and the reinforcing rib thickness to be 0.3mm. After treatment at 530℃, water quenching, and artificial aging at 175℃ (T6), the tensile strength of the substrate 1 reaches 230MPa. Through T6 heat treatment and the design of the reinforced structure, the compressive strength is increased by 30%. The extrusion molding process reduces production costs by more than 25%. The structural ratio of the substrate 1 and the flow channel 13 is optimized, taking into account both structural strength and heat dissipation performance. The weight is reduced by more than 40% compared to traditional liquid cooling plates. It is made of AL6063-T6 aluminum alloy in one piece through extrusion molding, which has high thermal conductivity (≥200W / m·K), medium strength (tensile strength ≥215MPa) and excellent extrusion molding properties. The substrate 1 and the flow channel 13 are integrally molded, which is simple and convenient to manufacture, reduces welding processes, and lowers production costs. In terms of mechanical properties, AL6063-T6 aluminum alloy has a high yield strength (215MPa) and elongation (12%), and its density is approximately 2.71g / cm³. 3 With a high hardness rating, AL6063-T6 aluminum alloy is suitable for applications requiring high strength and corrosion resistance. The T6 heat-treated state of AL6063-T6 undergoes solution treatment and artificial aging, further enhancing its hardness and strength. In this state, the alloy not only maintains good plasticity and toughness but also possesses excellent corrosion resistance and weldability. This invention features a compact and rationally designed structure. Structural optimization improves heat dissipation efficiency, balancing structural strength and stability while also enhancing heat dissipation uniformity, ensuring optimal battery performance.

[0025] In this embodiment, the substrate 1 is provided with a flow divider plate 3, and the flow divider plate 3 is provided with a flow divider channel 4. The flow divider channel 4 is connected to multiple flow channels 13. The flow divider plate 3 is provided with a connector 5, which is arranged perpendicularly to the flow divider plate 3 so that the connector 5 is connected to the flow divider channel 4. Specifically, the flow divider plate 3 is located at one end of the substrate 1. It has a simple structure and good connection sealing, which can effectively prevent the accidental leakage of coolant caused by the failure of the seal of the substrate 1. The flow divider plate 3 is connected to multiple flow channels 13 through the flow divider channel 4. The connector 5 is arranged perpendicularly to the flow divider plate 3 and is connected to the flow divider channel 4. The coolant enters the flow divider channel 4 through the connector 5 and then flows from the flow divider channel 4 to multiple flow channels 13. Through the structural design of the flow divider plate 3, the coolant can be evenly distributed to each flow channel 13 of the substrate 1, thereby avoiding the problem of uneven heat dissipation caused by the concentrated flow of coolant in certain areas. This realizes the formation of multi-channel flow of coolant in the substrate 1 and improves the uniformity of coolant distribution.

[0026] In this embodiment, a connector strip 31 is provided on the side of the diverter plate 3 near the substrate 1. A limiting strip 32 is provided between the diverter plate 3 and the connector strip 31. The substrate 1 is provided with a connector groove 11, and the connector strip 31 is connected to the connector groove 11 so that the limiting strip 32 stops contact with the outer edge of the substrate 1. Specifically, the diverter plate 3 is inserted into the connector groove 11 through the connector strip 31. At the same time, the limiting strip 32 provided between the diverter plate 3 and the connector strip 31 stops contact with the outer edge of the substrate 1, thereby realizing the insertion and fixation between the diverter plate 3 and the substrate 1. The connection is stable and reliable, and the accidental loosening and falling off of the diverter plate 3 is prevented.

[0027] In this embodiment, the substrate 1 is provided with an assembly 6, which has mounting holes 61. Multiple assemblies 6 are provided, spaced apart along the length of the substrate 1. Specifically, preferably, four assemblies 6 are provided, spaced apart along the length of the substrate 1. External screws pass through the mounting holes 61 to correspondingly install and fix external sealing strips, thermally conductive materials, and thermally conductive components onto the substrate 1, making assembly simple and efficient.

[0028] In this embodiment, the assembly 6 is provided with a first connecting hole 62 and a connecting screw 63 connected to the first connecting hole 62. The substrate 1 is provided with a second connecting hole 12. The connecting screw 63 passes through the first connecting hole 62 and connects to the second connecting hole 12. Specifically, the connecting screw 63 passes through the first connecting hole 62 and connects to the second connecting hole 12 to facilitate the installation and fixation of the assembly 6 on the substrate 1, ensuring a stable and reliable connection.

[0029] In this embodiment, the cross-section of the flow channel 13 is rectangular or trapezoidal. Specifically, preferably, when the cross-section of the flow channel 13 is rectangular, the rectangular cross-section of the flow channel 13 combines structural simplicity and ease of construction, and is generally used in the design of flow channels 13 that are simple to construct and provide uniform flow. When the cross-section of the flow channel 13 is trapezoidal, due to its wider bottom, it helps to reduce pressure drop by reducing the flow velocity of the coolant, and is widely used in flow field channels in engineering design because it can better adapt to different slope and flow conditions.

[0030] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A liquid cooling plate with good heat dissipation, characterized in that: It includes a substrate and flow channels disposed on the substrate. The substrate and flow channels are integrally formed and both are made of aluminum alloy. Multiple flow channels are disposed along the length direction of the substrate.

2. The liquid cooling plate with good heat dissipation according to claim 1, characterized in that: The substrate is provided with a flow divider plate, and the flow divider plate is provided with a flow divider channel. The flow divider channel is connected to multiple flow channels. The flow divider plate is provided with a connector, and the connector is arranged perpendicular to the flow divider plate so that the connector is connected to the flow divider channel.

3. The liquid cooling plate with good heat dissipation according to claim 2, characterized in that: The diverter plate has a connector strip on the side near the substrate. A limit strip is provided between the diverter plate and the connector strip. The substrate has a connector groove. The connector strip is connected to the connector groove so that the limit strip stops contacting the outer edge of the substrate.

4. The liquid cooling plate with good heat dissipation according to claim 1, characterized in that: The substrate is provided with an assembly, the assembly is provided with a mounting hole, and there are multiple assemblies, which are spaced apart along the length of the substrate.

5. A liquid cooling plate with good heat dissipation according to claim 4, characterized in that: The assembly is provided with a first connecting hole and a connecting screw connected to the first connecting hole. The substrate is provided with a second connecting hole. The connecting screw passes through the first connecting hole and connects to the second connecting hole.

6. The liquid cooling plate with good heat dissipation according to claim 1, characterized in that: The cross-section of the flow channel is rectangular or trapezoidal.

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