Vehicle battery system

Abstract

To provide a battery system of a vehicles with enhanced safety.SOLUTION: A battery system of a vehicle according to an embodiment of the present invention includes a plurality of battery modules including a battery cell assembly and a bus bar 110, an upper case isolated on the top of the battery module, a wire harness 140 located between the battery module and the upper case and connected to the battery module, an elastic pad 150 that is spaced apart along the length of the wire harness to secure the wire harness, and a plurality of elastic bodies 130 arranged at the upper and lower ends of the bus bar 112 to fix the bus bar.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a battery system for a vehicle.

Background Art

[0002] Generally, a vehicle's battery system adopts a taping method to fix the high-voltage line.

[0003] However, the taping method has problems that the process is complicated and requires a long time, and there are also safety problems where the current-carrying part of the high-voltage line is exposed due to the shaking phenomenon caused by external impact.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The present invention is proposed to solve the above-mentioned problems, and safely fixes the bus bar and the wire harness through an elastic body and an elastic pad to simplify the assembly process, and strengthens the safety by preventing the exposure of the current-carrying part of the high-voltage line. The purpose is to provide a battery system for a vehicle.

[0005] The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned here will be clearly understood by those skilled in the art from the following description.

Means for Solving the Problems

[0006] A vehicle battery system according to an embodiment of the present invention includes: a plurality of battery modules including a battery cell assembly and a bus bar; an upper case disposed at a distance above the battery module; a wire harness disposed between the battery module and the upper case and connected to the battery module; along the length direction of the wire harness At the upper end of the aforementioned battery moduleIncludes elastic pads spaced apart to secure the wire harness, and multiple elastic bodies positioned at the upper and lower ends of the busbar to secure the busbar. Furthermore, in a state in which the upper case covers the upper end of the battery module, the upper end of the elastic pad and the lower surface of the upper case are in contact, and the elastic body positioned at the upper end of the busbar and the lower surface of the upper case are in contact. .

[0007] Preferably, the upper end of the elastic pad is formed with multiple fixing grooves into which the wire harness is tightened and fitted.

[0009] Multiple elastic bodies are arranged at regular intervals along the length of the busbar.

[0010] A vehicle battery system according to another embodiment of the present invention includes: a plurality of battery modules including a battery cell assembly; a plurality of busbars connected to the battery modules; a plurality of elastic bodies positioned at the upper and lower ends of the busbars, respectively, to secure the busbars; and an upper case covering the upper end of the battery module with the elastic body positioned at the upper end of the busbar in between. Furthermore, when the upper case covers the upper end of the battery module, the elastic body positioned at the upper end of the busbar and the lower surface of the upper case are in contact. .

[0011] Multiple elastic bodies can be attached to the upper and lower ends of the busbar in a detachable structure.

[0013] The elastic body preferably has a thickness that is the same as the distance between the busbar and the upper case, or exceeds it by only the elastic range.

[0014] A vehicle battery system according to yet another embodiment of the present invention includes: a plurality of battery modules including battery cell assemblies; an upper cover covering the upper end of the battery modules; an upper case covering the upper end of the upper cover; a wire harness positioned between the upper cover and the upper case and connected to the battery modules; and an upper cover along the length of the wire harness. upper end It includes elastic pads that are spaced apart and used to secure the wire harness. Furthermore, when the upper case covers the upper end of the upper cover, the upper end of the elastic pad and the lower surface of the upper case are in contact. .

[0015] The elastic pad has multiple fixing grooves into which the wire harness is tightened and fitted.

[0016] The fixing groove is formed in a narrow, elongated shape along the length of the elastic pad and may include multiple protrusions that project inward and are arranged alternately.

[0017] The elastic pad may be detachable from the upper cover.

[0018] The elastic pad may be designed to be snap-fit ​​compatible with the upper cover.

[0019] The elastic pad may be designed to be able to slide and fasten to the upper cover. [Effects of the Invention]

[0020] According to the present invention, the vehicle's battery system employs a method for easily attaching elastic bodies and elastic pads that secure busbars and wire harnesses, thereby simplifying the assembly process and ensuring safety by preventing exposure of the energized parts of high-voltage lines.

[0021] In particular, the vehicle's battery system minimizes vibration caused by external shocks and prevents interference between the upper cover, battery module, and busbar. [Brief explanation of the drawing]

[0022] [Figure 1] This is a schematic perspective view of a vehicle battery system according to one embodiment of the present invention, with the upper case removed for ease of identification in terms of its structure. [Figure 2] This is a schematic partial cross-sectional view illustrating a vehicle battery system according to one embodiment of the present invention. [Figure 3] This is a partially illustrated drawing of an elastic pad for securing a wire harness in a vehicle battery system according to one embodiment of the present invention. [Figure 4] This is a drawing partially illustrating an elastic body that fixes a busbar in a vehicle battery system according to one embodiment of the present invention. [Figure 5] In the battery system of a vehicle according to an embodiment of the present invention, it is a drawing illustrating an example of utilization of an elastic body. [Figure 6] In the battery system of a vehicle according to an embodiment of the present invention, it is a drawing illustrating an example of utilization of an elastic body.

Embodiments for Carrying Out the Invention

[0023] The advantages, features, and methods for achieving them of the present invention will become clear by referring to the embodiments described in detail hereinafter together with the attached drawings. However, the present invention is not limited to the embodiments disclosed below and can be embodied in various different forms, provided that these embodiments make the disclosure of the present invention complete and are provided to fully inform those with ordinary knowledge in the technical field to which the present invention belongs of the scope of the invention, and the present invention is defined by the description of the claims. On the other hand, the terms used in this specification are for explaining the embodiments and are not intended to limit the present invention. In this specification, the singular form includes the plural form unless otherwise specifically stated in the text. "Comprises" or "comprising" used in the specification does not exclude the existence or addition of one or more other components, steps, operations, and / or elements other than the components, steps, operations, and / or elements mentioned.

[0024] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0025] FIG. 1 is a schematic perspective view of a vehicle battery system shown excluding the upper case for convenience of structural identification, and FIG. 2 is a partial cross-sectional view schematically showing the vehicle battery system.

[0026] Looking closely at FIGS. 1 and 2, a vehicle battery system 100 according to an embodiment of the present invention includes a battery module 110, an upper case 120, an elastic body 130, a wire harness 140, and an elastic pad 150.

[0027] The battery module 110 includes an assembly of multiple battery cells 111 and a busbar 112. The busbar 112 is electrically connected to the battery cells 111.

[0028] The upper case 120 is positioned spaced above the battery module 110.

[0029] Multiple elastic bodies 130 are positioned at the upper and lower ends of the busbar 112 to securely fix the busbar 112. The multiple elastic bodies 130 are arranged at regular intervals along the length of the busbar 112.

[0030] The wire harness 140 is positioned between the battery module 110 and the upper case 120. This wire harness 140 is connected to the battery module 110.

[0031] The elastic pads 150 are spaced apart along the length of the wire harness 140 to secure the wire harness 140.

[0032] The elastic body 130 and the elastic pad 150 are in contact with the upper case 120 in sections, and the upper case 120 has a structure that covers the battery module 110 in this state.

[0033] Figure 3 is a diagram partially illustrating an elastic pad for securing a wire harness in a vehicle battery system according to one embodiment of the present invention.

[0034] Referring to Figure 3, the upper end of the elastic pad 150 has multiple fixing grooves 151 into which the wire harness 140 is tightened and fitted.

[0035] The fixing groove 151 is formed in a narrow, elongated shape along the length of the elastic pad 150. Such a fixing groove 151 includes projections 152 that protrude inward and are arranged alternately.

[0036] The diameter of the wire harness 140 corresponds to the inner diameter of the fixing groove 151, and the projection 152 is located at the upper end of the fixing groove 151, serving to ensure that the wire harness 140 is securely fixed in the fixing groove 151.

[0037] In other words, when the wire harness 140 is fitted into the fixing grooves 151 formed in a row of elastic pads 150, the projections 152 serve to prevent the wire harness 140 from easily separating from the fixing grooves 151.

[0038] On the other hand, the elastic pad 150 may be detachably attached to the upper cover 113, and as another example, it may be attached to and detached from the upper cover 113 by sliding.

[0039] As yet another example, the elastic pad 150 may be formed in a way that allows it to be fastened to the upper cover 113 in a snap-fit ​​manner.

[0040] The elastic pad 150 of the present invention can effectively restrict the position of the wire harness 140 more effectively than existing taping or overlapping methods, thereby improving workability on the assembly line.

[0041] In particular, the elastic pad 150 can surround and protect the entire area of ​​the wire harness 140, thus ensuring greater safety than existing methods. In other words, the elastic pad 150 is characterized by its ability to surround and protect the entire area of ​​the wire harness 140, rather than just protecting the upper and lower ends.

[0042] Figure 4 is a diagram partially illustrating an elastic body that fixes a busbar in a vehicle battery system according to one embodiment of the present invention, and Figures 5 and 6 are diagrams illustrating examples of the use of the elastic body.

[0043] According to Figures 4 to 6, the elastic body 130 is basically located at the upper and lower ends of the bus bar 112.

[0044] These elastic bodies 130 are arranged in a line with respect to the busbar 112 and fix the Z-axis of the busbar 112. When shocks occur due to vehicle vibration or external vibrations, the elastic bodies 130 prevent interference between the busbar 112 and the battery module 110.

[0045] In this case, the elastic body 130 can have a thickness that is the same as the distance between the bus bar 112 and the upper case 113, or exceeds it by an amount equal to the elastic range.

[0046] On the other hand, as shown in Figure 6, an elastic body 130' may be placed in the space between the upper case 120 and the vehicle body 200. In this case, the elastic body 130' plays a role in mitigating the impact caused by external vibrations from the vehicle's battery system itself.

[0047] Although not shown in the figures, multiple elastic bodies 130 can be attached to the upper and lower ends of the busbar 112 in a separable manner. That is, the first and second elastic bodies (not shown) surrounding the upper and lower ends of the busbar 112 may be composed of a single assembly that is detachable from one another.

[0048] The present invention is not limited to the embodiments described above, and the technical concept of the present invention can be modified and implemented in various ways within the permissible range. [Explanation of Symbols]

[0049] 100: Vehicle battery system 110: Battery module 111: Battery cell 112: Bus bar 113: Upper cover 114: End plate 120: Upper case 130, 130': Elastic body 140: Wire harness 150: Elastic pad 151: Fixed groove 152: Protrusion 200: Vehicle body

Claims

1. Multiple battery modules, including battery cell assemblies and busbars; An upper case positioned at a distance above the aforementioned battery module; A wire harness positioned between the battery module and the upper case and connected to the battery module; An elastic pad positioned spaced apart from the upper end of the battery module along the length of the wire harness to secure the wire harness; and The busbar includes a plurality of elastic bodies positioned at the upper and lower ends, respectively, for fixing the busbar. A vehicle battery system in which, with the upper case covering the upper end of the battery module, the upper end of the elastic pad is in contact with the lower surface of the upper case, and the elastic body positioned at the upper end of the busbar is in contact with the lower surface of the upper case.

2. At the upper end of the elastic pad The vehicle battery system according to claim 1, wherein a plurality of fixing grooves are formed into which the wire harness is tightened and fitted.

3. The plurality of elastic bodies The vehicle battery system according to claim 1, wherein the busbars are arranged at regular intervals along their length.

4. Multiple battery modules, including battery cell assemblies; Multiple busbars connected to the aforementioned battery module; A plurality of elastic bodies positioned at the upper and lower ends of the busbar, respectively, to fix the busbar; and The upper case includes an elastic body positioned at the upper end of the busbar, with an elastic body in between, to cover the upper end of the battery module. A vehicle battery system in which, with the upper case covering the upper end of the battery module, the elastic body positioned at the upper end of the busbar is in contact with the lower surface of the upper case.

5. The plurality of elastic bodies The vehicle battery system according to claim 4, which is attached to the upper and lower ends of the busbar in a detachable manner.

6. The elastic body The vehicle battery system according to claim 4, having a thickness that is the same as or exceeds by the elastic range the distance between the bus bar and the upper case.

7. Multiple battery modules, including battery cell assemblies; An upper cover that covers the upper end of the battery module; An upper case that covers the upper end of the aforementioned upper cover; A wire harness positioned between the upper cover and the upper case and connected to the battery module; and The wire harness includes an elastic pad that is spaced apart from the upper end of the upper cover along the length of the wire harness and secures the wire harness. A vehicle battery system in which, when the upper case covers the upper end of the upper cover, the upper end of the elastic pad and the lower surface of the upper case are in contact.

8. The elastic pad is The battery system for a vehicle according to claim 7, comprising a plurality of fixing grooves into which the wire harness is tightened and fitted.

9. The aforementioned fixing groove The vehicle battery system according to claim 8, comprising a plurality of protrusions formed in a narrow, elongated shape along the longitudinal direction of the elastic pad, which protrude inward and are arranged alternately.

10. The elastic pad is A battery system for a vehicle according to claim 7, which is detachable from the upper cover.

11. The elastic pad is The vehicle battery system according to claim 7, wherein the upper cover can be fastened with a snap-fit.

12. The elastic pad is The vehicle battery system according to claim 7, wherein the upper cover can be slid and fastened to it.

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