JP2018020745A - Vehicle battery holding structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery holding structure which enables improvement of power for holding a posture of a battery.SOLUTION: A vehicle battery holding structure 100 according to one embodiment of the invention includes a vehicle battery 104 and a battery tray 106 supporting the battery 104 from below. The vehicle battery holding structure 100 further includes: a rear surface support part 136 supporting a rear surface 122 of the battery 104 at a position separated from the battery tray 106 in an upward direction; and connection members 126a, 126b which connect the rear surface support part 136 with a predetermined vehicle body member (a hood lock member 128) forming a vehicle body of a vehicle.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle battery holding structure.

  As a technique for fixing the battery to the vehicle body, for example, Patent Document 1 is disclosed. In the battery fixing structure of Patent Document 1, the battery unit 10 is mounted on the tray 20. The battery unit 10 is provided with a locking projection 16 at one lower end and a fixing projection 15 at the other end. The tray 20 is provided with a locking member 28 for fitting the locking protrusion 16 of the battery unit 10 and an elastic member 30 for pressing the fixing protrusion 15, and the battery unit 10 is fixed by these. .

JP 2006-327493 A

  By the way, for example, when a rear-end collision occurs in the vehicle, the battery mounted on the battery tray is subjected to a force that tends to fall backward due to inertia. With respect to such a force, not only the mounting rigidity of the battery to the battery tray as in Patent Document 1, but also a device for maintaining the posture of the battery is desired.

  In view of such a problem, an object of the present invention is to provide a vehicle battery holding structure capable of improving the holding force of the battery posture.

  In order to solve the above-mentioned problems, a typical configuration of a vehicle battery holding structure according to the present invention is a vehicle battery holding structure including a vehicle battery and a battery tray that supports the battery from below. It further comprises a rear surface support portion that supports the rear surface of the battery at a position apart upward, and a connecting member that connects the rear surface support portion and a predetermined vehicle body member constituting the vehicle body of the vehicle. To do.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the battery holding structure which can improve the holding | maintenance force of the attitude | position of a battery.

It is a figure which shows the outline | summary of the battery holding structure for vehicles which concerns on the Example of this invention. It is a perspective view which shows the holding member and connection member of FIG.1 (b). It is the figure which showed the battery holding structure of Fig.1 (a) from the different direction. It is an enlarged view of the battery holding structure of Fig.1 (a). It is the figure which showed the tab of Fig.2 (a).

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical 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 the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

  According to an embodiment of the present invention, in a vehicle battery holding structure including a vehicle battery and a battery tray that supports the battery from below, the rear surface of the battery is supported at a position away from the battery tray. And a connecting member that connects the rear supporting portion and a predetermined vehicle body member constituting the vehicle body of the vehicle.

  According to the above configuration, the battery posture can be maintained. For example, when a force toward the rear of the vehicle is applied to the battery due to inertia or the like at the time of a collision (rear collision) from the rear surface of the vehicle, the battery can be prevented from moving backward.

  The rear surface support portion may support the upper portion of the rear surface of the battery. With this configuration, it is possible to efficiently absorb a load applied to the battery that rotates in the vehicle longitudinal direction.

  The vehicle battery holding structure may further include a battery bracket for attaching a lower portion of the front surface of the battery to the battery tray. The battery has a lower front portion supported by a battery bracket and a rear surface supported by a rear support portion. Therefore, it is possible to efficiently absorb the load applied to the battery that rotates in the vehicle front-rear direction.

  The vehicle battery holding structure may further include an upper surface support portion that extends from the rear surface support portion and supports the upper surface of the battery. As a result, the load applied to the battery that rotates in the vehicle front-rear direction can be absorbed more efficiently.

  The battery tray is provided in an engine room of the vehicle, and the predetermined vehicle body member may include a hood lock member extending in the vehicle width direction in front of the battery tray in the vehicle. The hood lock member is a highly rigid vehicle body member that supports the hood. When the connecting member connects the rear support portion and the hood lock member, the load applied to the battery can be absorbed more efficiently.

  The vehicle battery holding structure further includes a front support portion that extends from the rear support portion and supports the front surface of the battery, and the connecting member is provided between the hood lock member and the front support portion so as to be able to buckle. It is good to have a vulnerable part. According to the front support portion, for example, when a force toward the vehicle front is applied to the battery due to inertia or the like at the time of a collision (front collision) from the front of the vehicle, the battery can be prevented from moving forward. Further, the connecting member is provided with a fragile portion, and it is possible to prevent the battery from moving by buckling the connecting member before the impact at the time of the front collision is transmitted to the battery. In addition, the weak part of a connection member can be implement | achieved by providing a bending | flexion or a notch, Furthermore, thickness reduction, thickness reduction, etc.

  At least two terminals projecting upward are provided on the upper surface of the battery, the rear support portion extends in the vehicle width direction on the rear surface of the battery, and the vehicle battery holding structure further includes a rear support portion. It is preferable that a tab that protrudes downward from the terminal and has a narrower width than the distance between the two terminals is provided, and the protruding amount from the rear surface support portion of the tab is larger than the protruding amount from the upper surface of the terminal. The presence of this tab eliminates the possibility that the rear support portion touches the two terminals simultaneously. Therefore, a short circuit of the battery can be prevented.

  FIG. 1 is a diagram showing an outline of a vehicle battery holding structure (hereinafter, battery holding structure 100) according to an embodiment of the present invention. FIG. 1 (a) shows a vehicle with a battery holding structure from above. Hereinafter, 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 vehicle width direction is indicated by arrows L (Leftward), R (Rightward), and the vehicle vertical direction, respectively. Are illustrated by arrows U (upward) and D (downward), respectively.

  In this embodiment, the battery holding structure 100 is provided slightly on the left side of the front side of the engine room 102 of the vehicle. The battery holding structure 100 holds the posture of the battery 104 using a holding member 108 described later in addition to the battery tray 106.

  FIG. 1B is an enlarged perspective view of the vicinity of the battery 104 in FIG. The battery 104 has a shape close to a rectangular parallelepiped, and at least two terminals 112 a and 112 b projecting upward are provided on the upper surface 110. The battery tray 106 is a resin tray, and supports the battery 104 from below. The battery tray 106 is fixed to a side member 116 that is a vehicle body member in the engine room 102 via a lower tray bracket 114.

  A battery bracket 118 is provided on the battery tray 106. The battery bracket 118 holds the lower part of the front surface 120 of the battery 104 and fixes it to the battery tray 106. A lower portion of the rear surface 122 of the battery 104 is engaged with and held by a recess 124 (see FIG. 3B) of the battery tray 106.

  The battery holding structure 100 includes a holding member 108 and connecting members 126a and 126b. The holding member 108 is a frame-shaped member that surrounds the battery 104 and supports the battery 104 so as not to move. The connecting members 126a and 126b are steel bar-like members and extend toward a predetermined vehicle body member (hood lock member 128) constituting the vehicle body. The connecting members 126a and 126b support the holding member 108 by connecting the holding member 108 to the hood lock member 128 in front of the vehicle.

  FIG. 2 is a perspective view showing the holding member 108 and the connecting members 126a and 126b in FIG. FIG. 2A shows the holding member 108 and the like as viewed from the front side of the vehicle. As shown in FIG. 2A, the holding member 108 is bent along the shape of the battery 104 (see FIG. 1B), and has a structure imitating a quadrangle as a whole. The holding member 108 is configured by combining two parts, a first part 130 on the right side in the vehicle width direction and a second part 132 on the left side in the vehicle width direction. The first component 130 and the second component 132 are fastened and fixed by a screw 134 at a predetermined location.

  The holding member 108 includes a rear surface support portion 136 that supports the rear surface 122 of the battery 104 (see FIG. 1B), side surface support portions 140 and 141 that support the side surface 138 of the battery 104 in the vehicle width direction, and the battery 104 A front support portion 142 that supports the front surface 120 is formed. The rear surface support portion 136 supports the upper portion of the rear surface of the battery 104 through the cushioning material 144.

  An upper surface support portion 146 and a tab 148 are formed on the rear surface support portion 136. The upper surface support portion 146 is a portion extending upward from the second component 132 on the left side in the vehicle width direction of the rear surface support portion 136, and supports the upper surface 110 of the battery 104 (see FIG. 1B). The tab 148 is a portion that protrudes downward from the first part 130 on the right side in the vehicle width direction of the rear surface support portion 136, and supports the rear surface 122 of the battery 104 together with the rear surface support portion 136.

  A pair of connecting members 126a and 126b are provided on the side surface support portions 140 and 141 on both sides of the holding member 108 in the vehicle width direction. FIG. 2B is a perspective view of the holding member 108 and the like shown in FIG. The holding member 108 is provided with a plurality of beads 150 bulging in parallel from the side surface support portion 141 on the right side in the vehicle width direction to the front surface support portion 142. The side support 140 on the left side in the vehicle width direction is also provided with a plurality of beads 151 bulging in parallel extending in the vehicle front-rear direction. The beads 150 and 151 increase the sectional moment of the holding member 108 and improve the rigidity of the holding member 108. The connecting members 126a and 126b are joined to the valleys of the beads 150 and 151 by welding or the like.

  FIG. 3 is a view showing the battery holding structure 100 of FIG. 1A from different directions. FIG. 3A shows the battery holding structure 100 of FIG. 1A as viewed from the left side in the vehicle width direction. As shown in FIG. 3A, the connecting members 126a and 126b use a hood lock member 128 as a vehicle body member to which the holding member 108 is connected. The connecting members 126a and 126b are fixed to the flange portion 152 on the vehicle rear side of the hood lock member 128 by bolts 154 or the like.

  As shown in FIG. 1A, the hood lock member 128 is a highly rigid vehicle body member that extends in the vehicle width direction in front of the battery tray 106 and the vehicle and supports the hood. When the connecting member 126a connects the holding member 108 and the hood lock member 128, the load applied to the battery 104 can be absorbed more efficiently. As another example, it is possible to extend the connecting member toward another vehicle body member existing behind the rear support portion 136 and connect the holding member 108 to the other vehicle body member. .

  FIG. 3B is a cross-sectional view of the battery holding structure 100 of FIG. As shown in FIG. 3B, according to the battery holding structure 100, the battery 104 is supported by the rear surface at a position where the lower portion of the front surface 120 is supported by the battery bracket 118 and the rear surface 122 is separated upward from the battery tray 106. It is supported by the part 136 and the tab 148 (see FIG. 3A). Further, the rear side of the upper surface 110 of the battery 104 is supported by the upper surface support portion 146. In this way, the battery 104 is held by the battery holding structure 100 at a diagonal position between the lower part on the front side and the upper part on the rear side.

  For example, when a rear collision occurs, the vehicle body is pushed forward by the impact, and due to the inertia, a force toward the vehicle rear is applied to the battery 104 with respect to the vehicle body. And since the lower part is being fixed to the battery tray 106, the battery 104 tends to rotate so that it may fall down to the vehicle rear. However, in the battery holding structure 100, the battery bracket 118, the rear support part 136, the tab 148, and the upper surface support part 146 hold and support diagonal portions of the battery 104, so It is possible to efficiently absorb the load that rotates rearward and efficiently prevent the battery 104 from moving and vibrating.

  As shown in FIG. 3A, the rear support 136 is connected to the hood lock member 128 in front of the vehicle by connecting members 126a and 126b. Accordingly, the rear support 136 supports the battery 104 so as to pull it forward of the vehicle. As described above, since the connecting member 126a extends to the side opposite to the direction of the load applied to the battery 104 at the time of the rear collision, the rear support portion 136 can efficiently absorb the load of the battery 104 at the time of the rear collision. It has become.

  FIG. 4 is an enlarged view of the battery holding structure 100 of FIG. In the holding member 108, a side surface support portion 140 and a front surface support portion 142 are provided so as to extend from the rear surface support portion 136 to the vehicle front side. At the time of a collision or the like, the side support part 140 prevents the battery 104 from moving in the vehicle width direction, and the front support part 142 prevents the battery 104 from moving forward of the vehicle.

  For example, when a front collision occurs, the vehicle body is pushed rearward due to an impact, and due to the inertia, a force toward the vehicle front is applied to the battery 104 with respect to the vehicle body. And since the lower part is being fixed to the battery tray 106, the battery 104 tends to rotate so that it may fall down ahead of a vehicle. However, in the case of the battery holding structure 100, the front support 142 supports the battery 104 from the front of the vehicle, and therefore efficiently absorbs a load applied to the battery 104 that rotates forward of the vehicle. Can be efficiently prevented.

  Reference is again made to FIG. The connecting members 126 a and 126 b are provided with a fragile portion between the hood lock member 128 and the front support portion 142. For example, the weakened portions 156 and 158 are provided in the connecting portion 126b on the left side in the vehicle width direction. In addition, weak portions 157 and 159 are provided in the connecting portion 126a on the right side in the vehicle width direction. In these weak parts 156 to 159, the connecting members 126a and 126b are bent. Specifically, in the fragile portions 156 and 157, the connecting members 126b and 126a are bent convexly upward, and in the fragile portions 158 and 159, the connecting members 126b and 126a are bent convexly downward. These weak parts 156 to 159 are configured to buckle the connecting members 126a and 126b at the time of a front collision.

  When a front collision occurs, the hood lock member 128 may move rearward of the vehicle due to contact with an external structure. Then, the connecting members 126a and 126b push the battery 104 toward the rear of the vehicle and move it, and there is a possibility that the battery 104 and another structure in the engine room 102 (see FIG. 1B) collide. Therefore, in this embodiment, the weak parts 156 to 159 are provided in the connecting members 126a and 126b, and the connecting members 126a and 126b are buckled before the load at the time of the front collision is transmitted to the battery 104, thereby preventing the battery 104 from moving. Is possible.

  In this embodiment, the fragile portions 156 to 159 are realized by bending the connecting members 126a and 126b, but the configuration of the fragile portion is not limited to this. Another example of the fragile portion can be realized by making the coupling members 126a and 126b notched, thinned, or thinned to make them partially fragile.

  FIG. 5 is a diagram showing the tab 148 of FIG. In this embodiment, the tab 148 can prevent contact between the holding member 108 and the terminals 112 a and 112 b of the battery 104.

  The rear support 136 extends over the rear surface 122 of the battery 104 (see FIG. 1B, etc.) in the vehicle width direction, and there is a risk of short circuit if it contacts the terminals 112a and 112b at the same time. Therefore, in the present embodiment, the tab 148 is provided with the width W1 narrower than the distance D1 between the two terminals 112a and 112b (W1> D1). And the protrusion amount L1 from the rear surface support part 136 of the tab 148 is set larger than the protrusion amount L2 from the upper surface 110 of the terminals 112a and 112b (L1> L2). With these configurations, there is no risk that the rear support 136 and the tab 148 touch the two terminals 112a and 112b at the same time. Therefore, a short circuit of the battery 104 can be prevented during the operation of attaching the holding member 108 to the battery 104.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  The present invention can be used for a vehicle battery holding structure.

D1 ... distance between terminals, W1 ... tab width, L1 ... tab protrusion, L2 ... terminal protrusion, 100 ... battery holding structure, 102 ... engine room, 104 ... battery, 106 ... battery tray, 108 ... holding 110, battery upper surface, 112a, 112b, battery terminal, 114, tray bracket, 116, side member, 118, battery bracket, 120, front surface of battery, 122, rear surface of battery, 124, recess, 126a, vehicle Link member on the right side in the width direction, 126b ... Link member on the left side in the vehicle width direction, 128 ... Hood lock member, 130 ... First part, 132 ... Second part, 134 ... Screw, 136 ... Rear support part, 138 ... Side of battery , 140 ... left side support portion in the vehicle width direction, 141 ... right side support portion in the vehicle width direction, 142 ... front support portion, 44 ... cushioning material, 146 ... upper surface support portion, 148 ... tab, 150 ... bead on the right side in the vehicle width direction, 151 ... bead on the left side in the vehicle width direction, 152 ... flange portion of the hood lock member, 154 ... bolt, 156 ... vehicle width Fragile portion protruding upward in the connecting member on the left side in the direction 157... Fragile portion protruding upward in the connecting member on the right side in the vehicle width direction 158. A fragile part protruding downward in the connecting member on the right side in the width direction

Claims (7)

In a vehicle battery holding structure comprising a vehicle battery and a battery tray that supports the battery from below,
A rear support portion supporting the rear surface of the battery at a position away from the battery tray;
A battery holding structure for a vehicle, further comprising a connecting member that connects the rear support portion and a predetermined vehicle body member constituting the vehicle body of the vehicle.   The vehicle battery holding structure according to claim 1, wherein the rear surface support portion supports an upper portion of the rear surface of the battery.   3. The vehicle battery holding structure according to claim 1, further comprising a battery bracket that attaches a lower portion of a front surface of the battery to the battery tray. 4.   The vehicle battery holding structure according to any one of claims 1 to 3, further comprising an upper surface support portion that extends from the rear surface support portion and supports the upper surface of the battery. Battery holding structure. The battery tray is provided in the engine room of the vehicle,
5. The vehicle battery holding structure according to claim 1, wherein the predetermined vehicle body member includes a hood lock member extending in a vehicle width direction in front of the battery tray in the vehicle. . The vehicle battery holding structure further includes a front support portion that extends from the rear support portion and supports the front surface of the battery,
The vehicle battery holding structure according to claim 5, wherein the connecting member includes a weakened portion that is provided between the hood lock member and the front support portion and can buckle. . At least two terminals protruding upward are provided on the upper surface of the battery,
The rear surface support portion extends in the vehicle width direction on the rear surface of the battery,
The battery holding structure for a vehicle further includes a tab that protrudes downward from the rear support portion and is narrower than the distance between the two terminals,
7. The vehicle battery holding structure according to claim 1, wherein an amount of protrusion of the tab from the rear surface support portion is larger than an amount of protrusion of the terminal from the upper surface.

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