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KR-102842844-B9 - Protective cover for electric vehicle battery installation with shock absorption function

KR102842844B9KR 102842844 B9KR102842844 B9KR 102842844B9KR-102842844-B9

Abstract

The present invention relates to a protective cover having a shock-absorbing function that can be applied to and used with battery packs of electric vehicles already in use, and which aims to shorten the manufacturing process time by not forming separate ribs on the battery pack against external impact. More specifically, the invention relates to a protective cover provided on the outer surface excluding the lower surface of a battery case molded into a box shape, which is intended to prevent deformation of the battery case shape due to external impact as well as prevent damage to components installed inside the battery case. The protective cover is characterized by comprising an upper cover member that is seated to cover the upper surface of the battery case, an outer cover member that is detachably coupled to the end of the upper cover member and is provided to cover at least one of the two sides or the upper and lower surfaces of the battery case, and a plurality of members formed to have a checkerboard pattern corresponding to the respective areas of the upper cover member and the outer cover member, and including a shock-absorbing means that can be filled from the outside inside.

Inventors

  • 장태영

Dates

Publication Date
20260512
Application Date
20250223

Claims (7)

  1. A protective cover provided on the outer surface excluding the lower surface of a battery case (10) formed in a box shape, which prevents deformation of the battery case (10) due to external impact and also prevents damage to components installed inside the battery case (10). The above protective cover is An upper cover member (100) that is seated to cover the upper surface of the battery case (10); An outer cover member (200) configured to be detachably coupled to the end of the upper cover member (100) and configured to cover at least one of the two sides or the upper and lower surfaces of the battery case (10); and A plurality of shock-absorbing means (300) are formed to have a checkerboard pattern corresponding to the respective areas of the upper cover member (100) and the outer cover member (200), and the interior is filled from the outside. A protective cover for installing an electric vehicle battery having a shock-absorbing function, characterized in that the upper cover member (100) is formed to have the shape of a plate using a non-combustible material, and a connecting band (110) is formed at the end to be detachably connected to the outer cover member (200) and has a predetermined length.
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  3. In paragraph 1, The above outer cover member (200) is A protective cover for installing an electric vehicle battery having a shock-absorbing function, characterized by having a plurality of connecting holes (210) formed therein to maintain a state in which the outer cover member (200) and the upper cover member (100) are interconnected through which the connecting band (110) passes.
  4. In paragraph 1, The above shock-absorbing means (300) is A protective cover for installing an electric vehicle battery having a shock absorption function, characterized by including at least one of a liquid black (310) that has suspension properties and is filled into the shock absorbing means (300), or an elastic ball (320) formed into a ball shape using a material capable of elastic recovery.
  5. In paragraph 1, The above shock-absorbing means (300) is A protective cover for installing an electric vehicle battery having a shock absorption function, characterized by satisfying a structure protruding to have a dome shape on the surface of the upper cover member (100) and the outer cover member (200).
  6. In paragraph 5, The above outer cover member (200) is A protective cover for installing an electric vehicle battery having a shock absorption function, characterized by further including an additional cover plate (230) that is detachably connected to the lower part and has a plurality of the above-mentioned shock-absorbing means (300) formed on its outer surface.
  7. In paragraph 1, A protective cover for installing an electric vehicle battery having a shock absorption function, characterized in that at least one of the upper cover member (100) or the outer cover member (200) has a through hole (220) formed so that the battery case (10) can be connected to a vehicle control unit or a cooling means.

Description

Protective cover for electric vehicle battery installation with shock absorption function The present invention relates to a protective cover having a shock-absorbing function that reduces manufacturing process time by not forming separate ribs on the battery pack against external impact, and can be applied to battery packs of electric vehicles already in use. Generally, an electric vehicle is a vehicle that moves using electricity as its power source, obtaining its driving energy from electrical energy rather than from the combustion of fossil fuels like conventional vehicles. Electric vehicles are broadly classified into Battery Electric Vehicles (BEV), Hybrid Electric Vehicles (HEV), Plug-in Hybrid Electric Vehicles (PHEV), and Fuel Cell Electric Vehicles (FCEV). All of these electric vehicles are configured to drive the vehicle using an electric motor, and are equipped with a high-voltage battery pack that provides driving power to the electric motor. The above-mentioned high-voltage battery pack forms the final form of a battery system installed in an electric vehicle, wherein battery modules, composed of a fixed number of battery cells (unit cells), are housed in a battery pack case. That is, the battery pack of an electric vehicle includes a battery module and various control and protection systems, such as a Battery Management System (BMS; not shown) that detects the voltage, current, and temperature of the battery module and controls its operation, and a cooling system; it is protected by a battery pack case that encloses and protects the battery pack while forming its exterior, and is mounted on a vehicle. The high-voltage battery pack of an electric vehicle configured as described above is installed in the trunk space, but as vehicle performance has recently improved, the battery size and quantity have been increasing to accommodate this. Consequently, since the high-voltage battery pack can no longer be installed in the trunk space where space is limited, a method of fixing it to the under floor panel from the outside of the vehicle is mainly being utilized. In other words, high-voltage battery packs used in electric vehicles are typically mounted on the underside of the vehicle body, and especially in the case of commercial vehicles, externally mounted high-voltage battery packs are required because the interior space of the vehicle is limited. Meanwhile, the aforementioned battery pack is formed from steel material that is not damaged by impact, and although it uses a method of mitigating shock by installing multiple ribs inside each frame by welding to absorb the impact, it has the disadvantage of being only effective against a certain degree of impact and having a weak actual effect. In particular, there is a problem in that mass production is not feasible due to the significant amount of time required in the manufacturing process to install the ribs. In addition, due to the technological development of the aforementioned battery pack, a problem also arises in that battery packs already on the market cannot be expected to have improved resistance to external shocks. FIG. 1 is a drawing illustrating a protective cover for installing an electric vehicle battery having a shock absorption function according to the present invention. FIG. 2 is a drawing illustrating an upper cover member for FIG. 1. FIG. 3 is a cross-sectional view of AA for FIG. 2. FIG. 4 is a drawing illustrating an outer cover member for FIG. 1. Fig. 5 is a BB cross-sectional view for Fig. 4. FIG. 6 is a drawing illustrating another embodiment of FIG. 4. Fig. 7 is a CC cross-sectional view of Fig. 6. FIG. 8 is a drawing showing an outer cover member having a through hole formed therein according to FIG. 4. FIG. 9 is a diagram showing the usage state of a protective cover for installing an electric vehicle battery having a shock absorption function according to the present invention. Hereinafter, a protective cover for installing an electric vehicle battery having a shock absorption function according to the present invention (hereinafter briefly referred to as the "protective cover") will be described in detail with reference to the attached drawings. delete delete delete delete delete First, as illustrated in FIGS. 1 and 3, the protective cover (1) according to the present invention comprises an upper cover member (100), an outer cover member (200), and a shock-absorbing means (300). Through the organic combination of the above components, unlike conventional methods, it is possible to achieve the advantage of shock absorption without installing a plurality of ribs to implement a cushioning effect for the purpose of improving durability inside the battery case (10), thereby enabling rapid processing time. In particular, since it can be applied to a battery case (10) already used in electric vehicles, it additionally has the advantage of preventing safety accidents to the driver. To explain in more detail, the upper cover memb