Multi-U-shaped parallel flow channel uniform temperature liquid cooling plate structure

Abstract

The utility model discloses a multi-U-shaped parallel flow channel temperature equalization liquid cooling plate structure, relates to the technical field of liquid cooling plate temperature equalization, and aims to solve the problems that the flow path of cooling liquid in a flow channel is longer, the flow resistance is increased, and the distribution and the flow speed of the cooling liquid in the flow channel are difficult to ensure to be consistent due to the existing S-shaped flow channel design. The utility model relates to a heat dissipation device, in particular to a heat dissipation device, which comprises a main manifold and a backflow manifold, a splitter is connected inside the main manifold, a heat dissipation plate is connected between the main manifold and the backflow manifold, the inside of the main manifold is designed into a double-layer structure, a plurality of flow equalizing holes are arranged on the splitter, and a plurality of groups of U-shaped flow channels are arranged inside the heat dissipation plate. Through the parallel flow channel design of the U-shaped flow channel in the heat dissipation plate and the cooperation of the splitter on one side, cooling liquid flowing into the U-shaped flow channel is evenly distributed, the cooling liquid is evenly distributed and flows in the heat dissipation plate, the U-shaped short flow channel design is designed, and the flow resistance is reduced through the cooperation of the double-layer structure in the manifold.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling plate temperature uniformity, in particular to a multi-U-shaped parallel flow channel temperature-uniform liquid cooling plate structure. Background Art

[0002] The aluminum extrusion mouthpiece tube liquid cooling plate is one of the liquid cooling plates for heat exchange of new energy batteries. The general design scheme of the flow channel is an S-shaped channel. The rib positions are removed by CNC machining, and the two ends are blocked with blocking pieces to form an S-channel;

[0003] However, the S-shaped flow channel design results in a long flow path of the coolant in the flow channel, increasing the flow resistance and reducing the cooling efficiency. Moreover, due to the complexity and non-uniformity of the S-shaped flow channel, it is difficult to ensure the consistency of the distribution and flow velocity of the coolant in the flow channel, resulting in inconsistent heat dissipation effects in each area of the battery module, poor temperature uniformity, and affecting the overall performance and life of the battery pack. Summary of the Utility Model

[0004] A multi-U-shaped parallel flow channel temperature-uniform liquid cooling plate structure proposed by the utility model solves the existing problems.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme: A multi-U-shaped parallel flow channel temperature-uniform liquid cooling plate structure, comprising:

[0006] A main manifold and a return manifold, a flow dividing plate is connected inside the main manifold, and a heat dissipation plate is connected between the main manifold and the return manifold. The inside of the main manifold is designed as a double-layer structure, and the main manifold is used for the inlet and outlet management of the coolant; a plurality of partition plates are designed in the return manifold groove, so that every two adjacent flow channels of the heat dissipation plate form a U-shaped flow channel;

[0007] A flow dividing plate, a plurality of flow equalizing holes are opened on the flow dividing plate, and the flow dividing plate is used to achieve uniform distribution of the coolant;

[0008] A heat dissipation plate, a plurality of flow channels are opened inside the heat dissipation plate, and every two adjacent flow channels are combined into a U-shaped flow channel in a parallel structure. Both sides of the heat dissipation plate are connected to the main manifold and the return manifold.

[0009] Preferably, the heat dissipation plate is made of a corrosion-resistant and highly thermally conductive material. Fixing holes are provided at both ends of the main manifold and the return manifold. Empty grooves are opened inside the main manifold and the return manifold, and a flow dividing plate is connected inside the empty groove of the main manifold.

[0010] Preferably, the main manifold is provided with upper and lower layers of empty grooves. The upper empty groove is the liquid inlet layer, and the lower empty groove is the liquid outlet layer.

[0011] Preferably, the flow dividing plate is connected to one side inside the main manifold. The sizes of the flow equalizing holes provided on the flow dividing plate are not equal, and one side of the flow dividing plate is in contact with the heat dissipation plate.

[0012] Preferably, one inlet and one outlet of the heat dissipation plate form a U-shaped flow channel as a group.

[0013] Preferably, a plurality of U-shaped flow channels arranged in parallel at equal intervals along the width direction are formed on the heat dissipation plate, and the U-shaped flow channels are used to shorten the flow channel length and reduce the flow resistance.

[0014] The beneficial effects of the present utility model are as follows: through the parallel flow channel design of the U-shaped flow channels in the liquid cooling plate, in cooperation with the flow dividing piece on one side, the coolant flowing into the U-shaped flow channels is evenly distributed through the flow equalizing holes in the flow dividing piece, so that the coolant is evenly distributed and flows in the heat dissipation plate, improving the temperature uniformity of the battery module; changing the original S-shaped long flow channel design to a U-shaped short flow channel design, and cooperating with the double-layer structure of the liquid inlet layer and the liquid outlet layer in the main manifold, the flow resistance is reduced, and the flow rate of the coolant and the heat exchange efficiency are improved. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model.

[0016] Figure 2 is a partially enlarged schematic structural diagram of the main manifold of the present utility model.

[0017] Figure 3 is a partially enlarged schematic structural diagram of the heat dissipation plate of the present utility model.

[0018] Figure 4 is a front view of the present utility model.

[0019] Reference numerals in the figure: 1, main manifold; 101, fixing hole; 102, liquid inlet layer; 103, liquid outlet layer; 2, return manifold; 3, flow dividing piece; 301, flow equalizing hole; 4, heat dissipation plate; 401, U-shaped flow channel; 402, inlet; 403, outlet. Detailed Embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0021] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] Refer to Figures 1-4 , a multi-U-shaped parallel flow channel isothermal liquid cooling plate structure, comprising:

[0023] The main manifold 1, a flow dividing sheet 3 is connected inside the main manifold 1, the return manifold 2, a plurality of partition plates are designed in the groove, a heat dissipation plate 4 is connected between the main manifold 1 and the return manifold 2, the inside of the main manifold 1 is designed as a double-layer structure, the main manifold 1 is used for the inlet and outlet management of the coolant, the flow dividing sheet 3, a plurality of flow equalizing holes 301 are formed on the flow dividing sheet 3, the flow dividing sheet 3 is used to achieve the uniform distribution of the coolant, the heat dissipation plate 4, a plurality of flow channels are formed inside the heat dissipation plate 4, and every two are combined into a U-shaped flow channel 401 in a parallel structure, and both sides of the heat dissipation plate 4 are connected to the main manifold 1 and the return manifold 2.

[0024] Reference Figure 2 , the heat dissipation plate 4 is made of a corrosion-resistant and high thermal conductivity material, fixing holes 101 are arranged at both ends of the main manifold 1, an empty groove is formed inside the main manifold 1, and the flow dividing sheet 3 is connected inside the empty groove, upper and lower layers of empty grooves are formed inside the main manifold 1, the upper empty groove is the liquid inlet layer 102, and the lower empty groove is the liquid outlet layer 103, the flow dividing sheet 3 is connected to one side inside the main manifold 1, the sizes of the flow equalizing holes 301 arranged on the flow dividing sheet 3 are different, one side of the flow dividing sheet 3 is in contact with the heat dissipation plate 4, and the flow equalizing holes 301 with different sizes arranged on the flow dividing sheet 3 are used to verify the flow uniformity through the combination of simulation and single-body test, so as to achieve the uniform distribution of the coolant and further optimize the flow uniformity.

[0025] Reference Figure 3 , Figure 4 , the heat dissipation plate 4 forms a U-shaped flow channel 401 with an inlet 402 and an outlet 403 as a group, a plurality of U-shaped flow channels 401 are arranged in parallel at equal intervals along the width direction on the heat dissipation plate 4, and the U-shaped flow channel 401 is used to shorten the flow channel length, reduce the flow resistance, and make the flow of the coolant in the flow channel smoother.

[0026] Working principle: First, the main manifold 1 is designed as a double-layer structure and adopts the layout mode of upper inlet and lower outlet, which is beneficial to the uniform distribution of the coolant in the heat dissipation plate 4. Then, the flow dividing sheet 3 is connected inside one side of the main manifold 1. Through the flow equalizing holes 301 with different sizes designed on the flow dividing sheet 3, through the combination of simulation calculation and single-body test, the coolant flow in each U-shaped flow channel 401 is ensured to be evenly distributed. The flow channels in the heat dissipation plate 4 are changed to a parallel connection mode of multiple U-shaped flow channels 401, and the U-shaped flow channels 401 are arranged in parallel at equal intervals along the width direction of the heat dissipation plate 4. Compared with the traditional single long flow channel design, the multi-U-shaped parallel flow channel can significantly reduce the flow channel length, reduce the flow resistance, increase the coolant flow velocity, and thus enhance the heat exchange effect.

[0027] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

Claims

1. A multi-U-shaped parallel flow channel isothermal liquid cooling plate structure, characterized in that, Comprising: A main manifold (1) and a return manifold (2), a flow dividing plate (3) is internally connected in the main manifold (1), and a heat dissipation plate (4) is connected between the main manifold (1) and the return manifold (2). The interior of the main manifold (1) is designed as a double-layer structure, and the main manifold (1) is used for the inlet and outlet management of the coolant; there are multiple partition plates in the groove of the return manifold (2), so that each two adjacent flow channels of the heat dissipation plate (4) form a U-shaped flow channel (401); A flow dividing plate (3), multiple flow equalizing holes (301) are formed in the flow dividing plate (3), and the flow dividing plate (3) is used to achieve the uniform distribution of the coolant; A heat dissipation plate (4), multiple flow channels are formed inside the heat dissipation plate (4), and each two are combined into a U-shaped flow channel (401) in a parallel structure. Both sides of the heat dissipation plate (4) are connected to the main manifold (1) and the return manifold (2).

2. The structure of a multi-U-shaped parallel flow channel isothermal liquid cooling plate according to claim 1, characterized in that, The main manifold (1) is made of a corrosion-resistant and highly thermally conductive material. Fixing holes (101) are provided at both ends of the main manifold (1) and the return manifold (2). Empty grooves are formed inside the main manifold (1) and the return manifold (2), and a flow dividing plate (3) is connected inside the empty groove of the main manifold (1).

3. The structure of a multi-U-shaped parallel flow channel isothermal liquid cooling plate according to claim 1, wherein Two layers of empty grooves are formed inside the main manifold (1). The upper empty groove is an inlet layer (102), and the lower empty groove is an outlet layer (103).

4. A multi-U-shaped parallel flow channel isothermal liquid cooling plate structure according to claim 1, characterized in that The flow dividing plate (3) is connected to one side inside the main manifold (1). The sizes of the flow equalizing holes (301) provided on the flow dividing plate (3) are different. One side of the flow dividing plate (3) is in contact with the heat dissipation plate (4).

5. A multi-U-shaped parallel flow channel isothermal liquid cooling plate structure according to claim 1, characterized in that The heat dissipation plate (4) forms a U-shaped flow channel (401) with one inlet (402) and one outlet (403) as a group.

6. The structure of a multi-U-shaped parallel flow channel isothermal liquid cooling plate according to claim 1, wherein, Multiple U-shaped flow channels (401) are arranged in parallel at equal intervals along the width direction on the heat dissipation plate (4), and the U-shaped flow channels (401) are used to shorten the flow channel length and reduce the flow resistance.

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