Vehicle battery support structure

Abstract

To provide a battery support structure for a vehicle that can support a battery with high rigidity.SOLUTION: A bracket 106 of a battery support structure 100 includes an upper bracket 110 and a lower bracket 112. The upper bracket 110 has a top surface part 114, a front wall part 116 extending downward from a front edge of the top surface part 114, and a rear wall part 118 extending downward from a rear edge of the top surface part 114. The lower bracket 112 has: an upper end part 120 joined to a lower side of the upper bracket 110; a swollen part 122 extending downward from the upper end part 120; a front-side flange 124 disposed along a front edge of the swollen part 122 and jointed to a side part of a side member 108; and a rear-side flange 126 disposed along a rear edge of the swollen part 122 and jointed to a side part of the side member 108. The lower bracket 112 forms a closed cross section E1 among the upper bracket 110, a side wall of a room mounted with a power unit and the side member 108.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a vehicle battery support structure. [Background technology]

[0002] Generally, a vehicle battery is installed on one side of the vehicle width direction in a power unit mounting room where an engine and a motor are mounted at the front of the vehicle, using a bracket, etc. For example, in the battery mounting structure of Patent Document 1, as shown in Fig. 2, a battery 2 is installed on a side frame 1 on the left side of the vehicle width direction using a first bracket 5 and a second bracket 6. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6477062 specification Summary of the Invention [Problem to be solved by the invention]

[0004] However, a battery with a certain weight is easily affected by vibrations while driving. In particular, the battery 2 in Fig. 2 of Patent Document 1 is installed slightly inward in the vehicle width direction with respect to the side frame 1, so it is likely to bend inward in the vehicle width direction, which may cause the battery to worsen the vehicle body vibrations.

[0005] In view of the above problems, the present invention has an object to provide a vehicle battery support structure capable of supporting a battery with high rigidity. [Means for solving the problem]

[0006] In order to solve the above problems, a representative configuration of a vehicle battery support structure according to the present invention is a vehicle battery support structure including a battery arranged in a power unit mounting room of a vehicle, a battery tray supporting the battery, and a bracket supporting the battery tray, the bracket including an upper bracket installed on the upper side of a side member extending in the fore-and-aft direction of the vehicle along a side wall at an end of the power unit mounting room in the vehicle width direction, and a lower bracket attached across the lower side of the upper bracket and the side member, the upper bracket having a top surface portion supporting the battery tray, The lower bracket has a front wall portion extending downward from the front edge of the top surface portion and a rear wall portion extending downward from the rear edge of the top surface portion, and the lower bracket has an upper end portion joined to the underside of the top surface portion of the upper bracket, a bulge portion extending downward from the upper end portion and spaced apart from the side member, a front flange formed along the front edge of the bulge portion and joined to the inner side portion of the side member in the vehicle width direction, and a rear flange formed along the rear edge of the bulge portion and joined to the inner side portion of the side member in the vehicle width direction, and the lower bracket is characterized in that it forms a closed cross section between the upper bracket, the side wall of the power unit mounting room, and the side member. Effect of the Invention

[0007] According to the present invention, it is possible to provide a vehicle battery support structure capable of supporting a battery with high rigidity. [Brief description of the drawings]

[0008] [Figure 1] 1 is a perspective view showing an overview of a vehicle battery support structure according to an embodiment of the present invention; [Diagram 2] FIG. 2 is an exploded view of the bracket in FIG. 1. [Diagram 3] 2 is a cross-sectional view of the battery support structure shown in FIG. 1 along the line AA. [Figure 4] 5 is a cross-sectional view of the battery support structure of FIG. 3 . DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] A vehicle battery support structure according to one embodiment of the present invention includes a battery arranged in a power unit mounting room of a vehicle, a battery tray supporting the battery, and a bracket supporting the battery tray. The bracket includes an upper bracket installed on the upper side of a side member extending in the vehicle front-rear direction along a side wall at an end of the power unit mounting room in the vehicle width direction, and a lower bracket attached across the lower side of the upper bracket and the side member. The upper bracket has a top surface portion supporting the battery tray and a front edge of the top surface portion. The lower bracket has a front wall portion extending downward from the top surface of the upper bracket and a rear wall portion extending downward from the rear edge of the top surface, the lower bracket has an upper end portion joined to the underside of the top surface of the upper bracket, a bulge portion extending downward from the upper end portion and spaced apart from the side member, a front flange formed along the front edge of the bulge portion and joined to the inner side portion of the side member in the vehicle width direction, and a rear flange formed along the rear edge of the bulge portion and joined to the inner side portion of the side member in the vehicle width direction, and the lower bracket forms a closed cross section between the upper bracket, the side wall of the power unit mounting room, and the side member.

[0010] The bracket with the above configuration has a closed cross section between the upper bracket, the side wall of the power unit mounting room, and the side member, so that the bracket as a whole can be installed with high rigidity. Therefore, with the above configuration, it is possible to efficiently suppress vibrations of the battery in the vertical direction, the vehicle width direction, etc.

[0011] The bulging portion may bulge out gradually away from the side member inward in the vehicle width direction as it approaches the upper bracket.

[0012] According to the lower bracket having the bulging portion of the above configuration, the upper bracket can be supported with a wider closed cross section, making it possible to efficiently suppress vibration of the battery.

[0013] The bulge may extend downward from the upper end to such an extent that it reaches the lower end of the side member.

[0014] According to the above configuration, since the closed cross section formed by the bulging portion extends to the lower end of the side member, it is possible to more efficiently suppress vibration of the battery.

[0015] The lower bracket may be joined to the rear side of the front wall portion and the front side of the rear wall portion of the upper bracket.

[0016] According to the above configuration, the lower bracket and the upper bracket can be joined with higher rigidity, making it possible to more efficiently suppress vibration of the battery. EXAMPLES

[0017] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The dimensions, materials, and other specific values ​​shown in the embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In this specification and drawings, elements having substantially the same functions and configurations are given the same reference numerals to avoid repeated explanations, and elements not directly related to the present invention are not shown.

[0018] Fig. 1 is a perspective view showing an overview of a vehicle battery support structure (hereinafter, battery support structure 100) according to an embodiment of the present invention. In Fig. 1 and all other drawings of the present application, the vehicle front-rear direction is indicated by arrows F (Forward) and B (Backward), the left and right in the vehicle width direction are indicated by arrows L (Leftward) and R (Rightward), and the vehicle up-down direction is indicated by arrows U (Upward) and D (Downward).

[0019] The battery support structure 100 is a structure for supporting a battery 102 that is placed mainly in a power unit mounting room at the front of the vehicle, and is composed mainly of a bracket 106, making it possible to particularly suppress vibration of the battery 102. The battery 102 is a member that supplies power to the vehicle, and is placed on the left side in the power unit mounting room in the vehicle width direction while being supported by a battery tray 104 that serves as a receptacle.

[0020] The bracket 106 is installed near a side member 108 in the power unit mounting room, and supports the front side of the battery tray 104 from below. The side member 108 is a frame that constitutes the side of the power unit mounting room, and extends in the front-to-rear direction of the vehicle along the lower part of a side wall 128.

[0021] The bracket 106 is configured by combining an upper bracket 110 and a lower bracket 112. The upper bracket 110 is installed across the upper side of the side member 108 and a side wall 128 of the power unit mounting room. The lower bracket 112 is attached from the lower side of the upper bracket 110 to a side portion 138 on the inner side in the vehicle width direction of the side member 108.

[0022] Fig. 2 is an exploded view of the bracket 106 of Fig. 1. Fig. 2(a) is a view showing the upper bracket 110 of Fig. 1 alone.

[0023] The upper bracket 110 has a protruding shape that tapers toward the inside in the vehicle width direction, and supports the battery tray 104 (see FIG. 1) with an upwardly facing top surface portion 114. The front wall portion 116 is formed so as to extend downward from the front edge of the top surface portion 114. The rear wall portion 118 is formed so as to extend downward from the rear edge of the top surface portion 114.

[0024] The upper bracket 110 is installed on the vehicle by using a plurality of flanges. The flange 130 is formed at the end on the outer side in the vehicle width direction, and is joined to a side wall 128 (see FIG. 1) of the power unit mounting room. The flange 132 is formed at the lower part of the front wall portion 116, and is joined to an upper part 136 of the side member 108. The flange 134 is formed at the lower part of the front wall portion 116 on the inner side in the vehicle width direction than the flange 132, and is joined to a side part 138 of the side member 108. A flange similar to these flanges 132, 134 is also formed at the lower part of the rear wall portion 118.

[0025] Fig. 2(b) is a view showing only the lower bracket 112 of Fig. 1. The upper end portion 120 of the lower bracket 112 is formed into a flange shape bent inward in the vehicle width direction, and is joined to the lower side of the top surface portion 114 of the upper bracket 110.

[0026] Bulging portion 122 is a portion extending downward from upper end portion 120. Bulging portion 122 is shaped to bulge inward in the vehicle width direction so as to be spaced apart from side member 108 (see FIG. 1) when lower bracket 112 is joined to side member 108.

[0027] A front flange 124 is formed along a leading edge of the bulge 122 and is joined to a side 138 (see FIG. 1 ) of the side member 108. A rear flange 126 is also formed along a trailing edge of the bulge 122 and is joined to the side 138 of the side member 108. A lower flange 140 is joined to the side member 108 near a lower end 142 thereof.

[0028] Fig. 3 is a cross-sectional view taken along line AA of the battery support structure 100 in Fig. 1. The lower bracket 112 forms a closed cross section E1 between the upper bracket 110, the side wall 128 of the power unit mounting room, and the side member 108 by utilizing the bulging portion 122 described above.

[0029] The bracket 106 can be installed with high rigidity as a whole by forming a closed cross section E1 between the lower bracket 112 and an area extending from the upper bracket 110 to the side wall 128 of the power unit mounting room and the side member 108. In particular, the bracket 106 has a closed cross section structure, and therefore can exhibit high rigidity against forces from various directions, compared to a simple flat plate structure or an open cross section structure. Therefore, the bracket 106 can efficiently suppress vibrations of the battery 102 in the up-down direction, the vehicle width direction, etc.

[0030] The bulging portion 122 of the lower bracket 112 bulges out so as to gradually move away from the side member 108 inward in the vehicle width direction as it approaches the upper bracket 110. For example, an inclined portion 123 is formed at the upper portion of the bulging portion 122. The inclined portion 123 extends at an angle toward the inside of the side member 108 in the vehicle width direction as it goes upward, and is connected to the top surface portion 114 of the upper bracket 110.

[0031] According to the lower bracket 112 having the bulging portion 122 configured as described above, the upper bracket 110 can be supported with a wider closed cross section E1, which makes it possible to efficiently suppress vibration of the battery 102. Also, since the inclined portion 123 of the bulging portion 122 extends at an inward angle in the vehicle width direction, the bulging portion 122 can support a portion of the top surface portion 114 of the upper bracket 110 that is more inward in the vehicle width direction, making it possible to efficiently suppress deflection of the battery tray 104 in the up-down direction.

[0032] The bulge 122 extends downward from the upper end 120 to the extent that it reaches the lower end 142 of the side member 108, and supports the upper bracket 110. According to this configuration, the closed cross section E1 of the bulge 122 is formed widely extending to the lower end 142 of the side member 108, so that the vertical load applied from the battery 102 can be efficiently absorbed, and vibration of the battery 102 can be more efficiently suppressed.

[0033] Fig. 4 is a BB cross-sectional view of the battery support structure 100 in Fig. 3. The lower bracket 112 is also joined to the rear side of the front wall portion 116 and the front side of the rear wall portion 118 of the upper bracket 110. In other words, the lower bracket 112 forms a closed cross section E1 extending to the front wall portion 116 and the rear wall portion 118 of the upper bracket 110. With this configuration, the lower bracket 112 and the upper bracket 110 can be joined with higher rigidity, and vibrations of the battery 102 in the up-down and front-back directions can be more efficiently suppressed.

[0034] The upper bracket 110 and the lower bracket 112 of the bracket 106 can be formed by bending a panel material. Alternatively, the upper bracket 110 and the lower bracket 112 can be realized as cast parts by casting.

[0035] As described above, according to the battery support structure 100, by utilizing the bracket 106 forming a closed cross-section E1, it is possible to improve the vibration performance of the battery 102, and ultimately improve the sound pressure sensitivity caused by input from the battery 102 and the vibration sensitivity of the vehicle floor.

[0036] Although the preferred embodiment of the present invention has been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to the above-described embodiment. It is clear that a person skilled in the art can think of various modifications or alterations within the scope of the claims, and it is understood that these also naturally belong to the technical scope of the present invention. [Industrial Applicability]

[0037] The present invention can be used in a vehicle battery support structure. [Explanation of symbols]

[0038] 100...battery support structure, 102...battery, 104...battery tray, 106...bracket, 108...side member, 110...upper bracket, 112...lower bracket, 114...top surface, 116...front wall, 118...rear wall, 120...upper end, 122...bulge, 123...inclined portion, 124...front flange, 126...rear flange, 128...side wall, 130...flange, 132...flange, 134...flange, 136...upper portion, 138...side portion, 140...lower flange, 142...lower end, E1...closed cross section

Claims

1. A vehicle battery support structure including a battery arranged in a power unit mounting room of a vehicle, a battery tray supporting the battery, and a bracket supporting the battery tray, The bracket is An upper bracket is installed on an upper side of a side member extending in a front-rear direction of the vehicle along a side wall at an end portion in a vehicle width direction of the power unit mounting room; a lower bracket attached across a lower side of the upper bracket and the side member, The upper bracket is A top surface portion that supports the battery tray; A front wall portion extending downward from a front edge of the top surface portion; a rear wall portion extending downward from a rear edge of the top surface portion, The lower bracket is An upper end portion joined to a lower side of the top surface portion of the upper bracket; a bulge portion extending downward from the upper end portion and spaced apart from the side member; a front flange formed along a front edge of the bulging portion and joined to a side portion on an inner side in a vehicle width direction of the side member; a rear flange formed along a rear edge of the bulging portion and joined to an inner side portion of the side member in a vehicle width direction, A vehicle battery support structure, characterized in that the lower bracket forms a closed cross section between the upper bracket, the side wall of the power unit mounting room, and the side member.

2. 2. The vehicle battery support structure according to claim 1, wherein the bulging portion bulges out so as to be gradually spaced apart inwardly in the vehicle width direction from the side member as it approaches the upper bracket.

3. 3. The vehicle battery support structure according to claim 1, wherein the bulging portion extends downward from the upper end portion to a position reaching a lower end of the side member.

4. 4. The vehicle battery support structure according to claim 1, wherein the lower bracket is joined to a rear side of the front wall portion and a front side of the rear wall portion of the upper bracket.

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