KR-20260062555-A - COOLING PLATE FOR ELECTRIC VEHICLE BATTERY MODULE

Abstract

The present invention relates to a cooling plate for an electric vehicle battery module that can improve the cooling efficiency of the electric vehicle battery module by arranging a plurality of flow deflection members within a flow channel through which cooling water circulates to generate turbulent flow.

Inventors

• 김성철

Assignees

• 영남대학교 산학협력단

Dates

Publication Date

20260507

Application Date

20241029

Claims (8)

1. A plate-shaped housing having an inlet and an outlet, and a plurality of flow channels so that cooling water introduced into the interior through the inlet can be discharged through the outlet after being circulated; and A cooling plate for an electric vehicle battery module comprising: a flow deflection member provided within the above-mentioned flow channel to generate turbulent flow in the circulating cooling water.
2. In paragraph 1, The above fluid channel is, A cooling plate for an electric vehicle battery module comprising branches into multiple parts from the above-mentioned inlet, extend to a predetermined length, and then merge back into one at the above-mentioned outlet.
3. In paragraph 2, The above fluid channel is, A cooling plate for an electric vehicle battery module, comprising one of a straight, streamlined, spiderweb, or wavy shape.
4. In paragraph 1, The above-mentioned fluid deflection member is, A cooling plate for an electric vehicle battery module, comprising a plurality of plates spaced apart along the longitudinal direction of the flow channel, formed to be inclined at a predetermined angle.
5. In paragraph 4, The above-mentioned fluid deflection member is, A first wing formed to be inclined at a predetermined angle and length along the longitudinal direction of the center of the above-mentioned fluid channel; and A cooling plate for an electric vehicle battery module comprising: a second wing that is divided into at least two branches at the end of the first wing in the direction of the flow of the coolant and then extends at a predetermined angle and length, respectively.
6. In paragraph 4 or 5, The above-mentioned fluid deflection member is, A cooling plate for an electric vehicle battery module comprising adjacent flow deflection members arranged at different angles along the longitudinal direction of the above-mentioned flow channel.
7. In paragraph 4, The above-mentioned fluid deflection member is, A cooling plate for an electric vehicle battery module comprising those sequentially spaced apart on the upper, lower, left, and right sides along the length direction of the above-mentioned fluid channel.
8. In paragraph 4, The above-mentioned fluid deflection member is, A cooling plate for an electric vehicle battery module comprising at least one through hole.

Description

Cooling Plate for Electric Vehicle Battery Module The present invention relates to a cooling plate for an electric vehicle battery module that can increase the cooling efficiency of the electric vehicle battery module. Generally, battery packs applied to electric vehicles and the like have a structure in which multiple cell assemblies, each containing multiple unit cells, are connected in series to obtain high output. The unit cells include positive and negative current collectors, separators, active materials, electrolytes, etc., and enable repeated charging and discharging through electrochemical reactions between the components. Recently, with the increasing need for large-capacity structures, including their use as energy storage sources, there is a growing demand for multi-module battery packs that aggregate multiple battery modules in which multiple secondary batteries are connected in series or parallel. In this case, the battery pack with the above-mentioned multi-module structure is manufactured in a form where multiple secondary batteries are densely packed in a narrow space. Accordingly, a cooling plate for the battery module has been proposed to efficiently cool the heat generated from each secondary battery. Specifically, the cooling plate for the battery module is equipped with channels of various shapes through which cooling water flows, and the cross-section of the channels is mainly designed to be rectangular or circular. That is, the flow configuration of the channels plays an important role in temperature uniformity, pressure drop, and heat removal. Accordingly, there is a need to design a cooling plate with a flow channel structure that can improve the cooling efficiency of the battery module. FIGS. 1 (a) to (d) are various embodiments of a cooling plate for a battery module equipped with a flow channel according to the present invention. FIG. 2 is a partial detail view showing one embodiment of a flow deflection member provided within a flow channel according to the present invention, FIG. 3 is a cross-sectional view along line I-I' of FIG. 2, FIGS. 4 to 10 are other embodiments of a flow deflection member according to the present invention. The configuration and operation of a specific embodiment of the present invention will be described in detail below with reference to the attached drawings. Here, it should be noted that when assigning reference numerals to the components of each drawing, identical components are denoted by the same numeral whenever possible, even if they are shown on different drawings. FIGS. 1 (a) to (d) are various embodiments of a cooling plate for a battery module equipped with a flow channel according to the present invention, and FIG. 2 is a partial detail view showing a flow deflection member provided within a flow channel according to one embodiment of the present invention. Referring to FIGS. 1 and 2, a cooling plate (100) for an electric vehicle battery module according to a preferred embodiment of the present invention may include a housing (110) and a flow deflection member (120). The configuration of the present invention is described in detail as follows. First, the housing (110) forms the main body of the cooling plate (100) for the electric vehicle battery module, and the housing (110) may be provided with an inlet (111) and an outlet (113). In addition, the housing (110) may be formed in a plate shape having a plurality of flow channels (115) so that cooling water introduced into the interior through the inlet (111) can be discharged to the outside through the outlet (113) after being circulated. In this case, the above-mentioned flow channel (115) may be formed in a shape where it branches out from the inlet (111) into multiple channels, extends to a predetermined length, and then merges back into one at the outlet (113). Specifically, the fluid channel (115) can be formed in any one of a straight shape (a), a streamlined shape (b), a spiderweb shape (c), or a wave shape (d), as shown in FIG. 1. For convenience of explanation, the present invention will be illustrated and described as an example in which the fluid channel (115) is formed in a straight shape. Referring to FIG. 2, the flow deflection member (120) is provided within the flow channel (115) and can generate turbulent flow in the circulating cooling water. Specifically, the above-mentioned flow deflection member (120) is formed to be inclined at a predetermined angle, and a plurality of them may be spaced apart along the longitudinal direction of the flow channel (115). As the above flow deflection member (120) is spaced apart in a shape tilted at a predetermined angle, turbulent flow can be generated within the flow channel (115) without significantly obstructing the flow of cooling water circulating in the flow channel (115). For example, the flow deflection member (120) may be formed to be in contact with the ceiling and floor inside the flow channel (115) (see FIG. 3 (a)) or may be