KR-20260062664-A - COOLING DEVICE FOR BATTERY PACK CASE
Abstract
The present invention discloses a cooling device for a battery pack case in which a cooling plate moves cooling water introduced into an inlet pipe to a set path, and then recirculates it back to the set path to discharge it to an outlet pipe. The disclosed cooling device for a battery pack case is characterized by comprising a support plate having a pair of through holes formed spaced apart on one side, an inlet pipe section that is fixedly inserted into one of the pair of through holes to introduce cooling water, an outlet pipe section that is fixedly inserted into the other of the pair of through holes to discharge cooling water, and a cooling plate provided on the support plate so that the cooling water introduced into the inlet pipe section moves to a set path and is then discharged to the outlet pipe section.
Inventors
- 서승구
Assignees
- (주) 영진
Dates
- Publication Date
- 20260507
- Application Date
- 20241029
Claims (4)
- A support plate having a pair of through holes formed spaced apart on one side; An inlet pipe portion that is fixedly inserted into either of the above pair of through-hole portions to introduce cooling water; A discharge pipe portion that is fixedly inserted into the other of the pair of through-hole portions to discharge cooling water; and A cooling plate provided on the support plate so that cooling water introduced into the inlet pipe moves along a set path and is discharged into the outlet pipe; A cooling device for a battery pack case characterized by including
- In paragraph 1, The above cooling plate is, A body part that is scalably connected to the above support plate; A flow path groove formed by being recessed into the body portion to communicate with the above-mentioned through-hole portion; and A recirculation guide member provided in the flow path groove so that cooling water introduced into the inlet pipe section moves along the path of the flow path groove section and then recirculates to be discharged into the discharge pipe section; A cooling device for a battery pack case characterized by including
- In paragraph 2, The above Eurohome department is, An inflow channel formed by being recessed on one side of the body part to communicate with the inflow pipe part; A discharge channel formed by being recessed on one side of the body part, spaced apart from the inlet channel and communicating with the discharge pipe part; A movement guide channel formed by being recessed in the body portion to communicate with the inlet channel and the outlet channel, forming a path for the cooling water to move from one side of the body portion to the other or from the other side of the body portion to one side; and A retention channel formed by being recessed on the other side of the body part to communicate with the above-mentioned movement guide channel and to temporarily retain cooling water; A cooling device for a battery pack case characterized by including
- In paragraph 3, The above-mentioned reflux guide member is, A dividing member provided in the above-mentioned movement guidance path to divide the above-mentioned movement guidance path; A partition member extending from the above-mentioned dividing member to partition the inflow channel and the discharge channel; and A U-turn guide member formed by extending from the split member to be disposed in the above retention channel to U-turn the cooling water; A cooling device for a battery pack case characterized by including
Description
Cooling device for battery pack case The present invention relates to a cooling device for a battery pack case, and more specifically, to a cooling device for a battery pack case in which a cooling plate moves cooling water introduced into an inlet pipe to a set path, and then recirculates it to a set path to discharge it to an outlet pipe. Generally, a secondary battery is a rechargeable and dischargeable battery; in the case of a battery for driving an electric vehicle motor, a large-capacity secondary battery is formed by connecting multiple battery cells in series or parallel. In a battery pack where multiple modules are connected in series, heat is generated in the cells during charging or discharging, and the battery's power varies depending on the cell temperature. Therefore, the cell temperature must be maintained within an appropriate range so that the internal temperature of the battery operates at, for example, 25 to 40 degrees. Currently used cooling methods for electric vehicle batteries can be broadly classified into air cooling and water cooling, and both methods are generally implemented at the battery module level. The air-cooling method attaches a cooling fan to the battery tray, draws in air from the outside to cool it starting from the inlet of the battery tray, and exhausts the air through the rear outlet of the battery tray. However, since the air heated at the inlet is transferred to the rear, the cooling performance of the battery may vary depending on the location of the battery; in particular, the cooling efficiency of batteries located at the rear is lower than that of the front, and there is a disadvantage that the overall cooling speed by air is slow. In addition, for battery modules that generate relatively high heat, a water-cooling method is mainly used to cool the battery pack by introducing coolant through a water cooling plate. However, conventional water-cooled cooling systems cool the battery module by inserting a heat sink or cooling pipes directly into the battery pack on the underside of the battery module rather than having an integrated battery pack case. This method not only poses a high risk of secondary accidents due to leakage, but also has the problem of reducing the vehicle's driving range by increasing the weight due to the increase in the number of parts as it consists of separate components. Therefore, there is a need to improve this. A related background technology is Korean Registered Patent Publication No. 10-2002861 (Registered on July 17, 2019, Title: Integrated Water-Cooled Cooling Device for Battery Pack Cooling). FIG. 1 is a perspective view illustrating a cooling device for a battery pack case according to one embodiment of the present invention. FIG. 2 is a bottom perspective view illustrating a cooling device for a battery pack case according to one embodiment of the present invention. FIG. 3 is an exploded perspective view illustrating a cooling device for a battery pack case according to one embodiment of the present invention. FIG. 4 is a bottom exploded perspective view illustrating a cooling device for a battery pack case according to one embodiment of the present invention. FIG. 5 is an operational diagram illustrating the movement state of cooling water in a cooling device for a battery pack case according to one embodiment of the present invention. Hereinafter, an embodiment of a cooling device for a battery pack case according to the present invention will be described with reference to the attached drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for the sake of clarity and convenience of explanation. Furthermore, the terms described below are defined in consideration of their functions in the present invention, and these may vary depending on the intent or practice of the user or operator. Therefore, the definitions of these terms should be based on the content throughout this specification. FIG. 1 is a perspective view illustrating a cooling device for a battery pack case according to an embodiment of the present invention, FIG. 2 is a bottom perspective view illustrating a cooling device for a battery pack case according to an embodiment of the present invention, FIG. 3 is an exploded perspective view illustrating a cooling device for a battery pack case according to an embodiment of the present invention, FIG. 4 is a bottom exploded perspective view illustrating a cooling device for a battery pack case according to an embodiment of the present invention, and FIG. 5 is an operation diagram illustrating the movement state of cooling water in a cooling device for a battery pack case according to an embodiment of the present invention. As illustrated in FIGS. 1 to 5, a cooling device for a battery pack case according to one embodiment of the present invention includes a support plate (100), an inlet pipe section (200), an outlet pipe section (300), and a cooling