JP6786938B2 - Vehicle battery holding structure - Google Patents

Description

The present invention relates to a vehicle battery holding structure.

For example, Patent Document 1 is disclosed as a technique for fixing a battery to a vehicle body. 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 protrusion 16 at one end of the lower portion and a fixing protrusion 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. ..

Japanese Unexamined Patent Publication No. 2006-327493

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

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

In order to solve the above problems, a typical configuration of the vehicle battery holding structure according to the present invention is from a battery tray in a vehicle battery holding structure including a vehicle battery and a battery tray that supports the battery from below. It is characterized by further including a rear surface support portion that supports the rear surface of the battery at a position separated 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.

According to the present invention, it is possible to provide a battery holding structure capable of improving the holding force of the posture of the battery.

It is a figure which shows the outline of the battery holding structure for a vehicle which concerns on embodiment of this invention. It is a perspective view which shows the holding member and connecting member of FIG. 1B. It is a figure which showed the battery holding structure of FIG. 1A from different directions. It is an enlarged view of the battery holding structure of FIG. 1A. It is a figure which showed the tab of FIG. 2 (a).

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in such an embodiment are merely examples for facilitating the 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 designated by the same reference numerals to omit duplicate description, and elements not directly related to the present invention are not shown. To do.

According to one 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. The rear surface support portion is further provided with a connecting member for connecting the rear surface support portion and a predetermined vehicle body member constituting the vehicle body of the vehicle.

According to the above configuration, the attitude of the battery can be maintained. For example, when a force toward the rear of the vehicle is applied to the battery due to inertia at the time of a collision (rear collision) from the rear surface of the vehicle, it is possible to prevent the battery from moving to the rear.

The rear support portion may support the upper part of the rear surface of the battery. With this configuration, it becomes possible to efficiently absorb the load applied to the battery that rotates in the front-rear direction of the vehicle.

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

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, it is possible to more efficiently absorb the load applied to the battery that rotates in the front-rear direction of the vehicle.

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

The vehicle battery holding structure further comprises a front support that extends from the rear support to support the front of the battery, and a connecting member is provided between the hood lock member and the front support to allow buckling. It is good to have a vulnerable part. According to the front support portion, it is possible to prevent the battery from moving forward when a force toward the front of the vehicle is applied to the battery due to, for example, inertia at the time of a collision (front collision) from the front of the vehicle. Further, the connecting member is provided with a fragile portion, which makes it possible to buckle the connecting member before the impact at the time of a front collision is transmitted to the battery to prevent the battery from moving. It should be noted that the fragile portion of the connecting member can be realized by providing a bend or a notch, and further by thinning or thinning.

The upper surface of the battery is provided with at least two terminals protruding upward, the rear support portion extends to the rear surface of the battery in the vehicle width direction, and the vehicle battery holding structure further includes a rear support portion. It is preferable that the tab is provided so as to project downward from the tab and narrower than the distance between the two terminals, and the amount of protrusion from the rear support portion of the tab is larger than the amount of protrusion from the upper surface of the terminal. The presence of this tab eliminates the risk of the rear support touching the two terminals at the same time. Therefore, it is possible to prevent a short circuit of the battery.

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. 1A shows a vehicle having a battery holding structure from above. Hereinafter, in FIG. 1 and all other drawings of the present application, the front-rear direction of the vehicle is indicated by arrows F (Forward) and B (Backward), and the left and right directions of the vehicle width are indicated by arrows L (Leftward) and R (Rightward), respectively. Are illustrated by arrows U (upward) and D (downward), respectively.

In this embodiment, the battery holding structure 100 is provided on the slightly 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 by using a holding member 108 or the like described later in addition to the battery tray 106.

FIG. 1B is an enlarged perspective view of the vicinity of the battery 104 of FIG. 1A. The battery 104 has a shape close to a rectangular parallelepiped, and at least two terminals 112a and 112b protruding 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 which is a vehicle body member in the engine room 102 via a lower tray bracket 114.

The battery tray 106 is provided with a battery bracket 118. The battery bracket 118 grips the lower portion of the front surface 120 of the battery 104 and is fixed to the battery tray 106. The lower portion of the rear surface 122 of the battery 104 is gripped by engaging with the 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 that it does not move. The connecting members 126a and 126b are steel bar-shaped members and extend toward a predetermined vehicle body member (hood lock member 128) constituting the vehicle body. The connecting members 126a and 126b connect the holding member 108 to the hood lock member 128 in front of the vehicle to support the holding member 108.

FIG. 2 is a perspective view showing the holding member 108 and the connecting members 126a and 126b of FIG. 1B. 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 formed 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 position.

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 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 via the cushioning material 144.

The upper surface support portion 146 and the tab 148 are formed on the rear surface support portion 136. The upper surface support portion 146 is a portion of the rear surface support portion 136 that extends upward from the second component 132 on the left side in the vehicle width direction, and supports the upper surface 110 of the battery 104 (see FIG. 1B). The tab 148 is a portion of the rear surface support portion 136 that protrudes downward from the first component 130 on the right side in the vehicle width direction, 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. 2A as viewed from the rear side of the vehicle. The holding member 108 is provided with a plurality of beads 150 that bulge in parallel from the side support portion 141 to the front support portion 142 on the right side in the vehicle width direction. The side surface support portion 140 on the left side in the vehicle width direction is also provided with a plurality of beads 151 extending in parallel in the vehicle front-rear direction. The beads 150 and 151 increase the moment of inertia of area of the holding member 108 to improve the rigidity of the holding member 108. The connecting members 126a and 126b are joined by welding or the like in the valleys of the beads 150 and 151, respectively.

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 the hood lock member 128 as a vehicle body member for connecting the holding member 108. The connecting members 126a and 126b are fixed to the flange portion 152 on the rear side of the vehicle of the hood lock member 128 by bolts 154 or the like.

As shown in FIG. 1 (a), the hood lock member 128 extends in the vehicle width direction at the vehicle front of the battery tray 106, a high vehicle body member rigidity to support the hood. By connecting the holding member 108 and the hood lock member 128 by the connecting member 126a, the load applied to the battery 104 can be absorbed more efficiently. As another example, it is also possible to extend the connecting member toward another vehicle body member existing behind the vehicle of the rear support portion 136, and to connect the holding member 108 and the other vehicle body member. ..

FIG. 3B is a sectional view taken along the line AA of the battery holding structure 100 of FIG. 1A. As shown in FIG. 3B, according to the battery holding structure 100, the battery 104 is supported at the lower portion of the front surface 120 by the battery bracket 118 and the rear surface 122 at a position separated upward from the battery tray 106. Supported by section 136 and 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. As described above, the battery 104 is gripped by the battery holding structure 100 at a position diagonal to the lower portion on the front side and the upper portion on the rear side.

For example, when a rear collision occurs, the vehicle body is pushed forward by the impact, and the inertia exerts a force on the battery 104 toward the vehicle rear. Since the lower portion of the battery 104 is fixed to the battery tray 106, the battery 104 tends to rotate so as to fall behind the vehicle. However, in the battery holding structure 100, since the battery bracket 118, the rear support portion 136, the tab 148, and the upper surface support portion 146 grip and support the diagonal portions of the battery 104, the vehicle depends on the battery 104. It is possible to efficiently absorb the load that rotates backward and efficiently prevent the movement and vibration of the battery 104.

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

FIG. 4 is an enlarged view of the battery holding structure 100 of FIG. 1 (a). In the holding member 108, the side surface support portion 140 and the front surface support portion 142 extend from the rear surface support portion 136 to the front side of the vehicle. In the event of a collision or the like, the side support portion 140 prevents the battery 104 from moving in the vehicle width direction, and the front support portion 142 prevents the battery 104 from moving forward in the vehicle.

For example, when a front collision occurs, the vehicle body is pushed to the rear of the vehicle by the impact, and the inertia exerts a force on the battery 104 toward the front of the vehicle. Since the lower portion of the battery 104 is fixed to the battery tray 106, the battery 104 tends to rotate so as to fall forward of the vehicle. However, in the battery holding structure 100, since the front support portion 142 supports the battery 104 from the front of the vehicle, the load applied to the battery 104 that rotates in the front of the vehicle is efficiently absorbed, and the battery 104 moves or vibrates. It is possible to prevent the problem efficiently.

See FIG. 3A again. The connecting members 126a and 126b are provided with a fragile portion between the hood lock member 128 and the front support portion 142. For example, the left in the vehicle width direction of the connecting member 126b, fragile portions 156, 158 are provided. Further, in the vehicle width direction right connecting member 126a, fragile portions 157 and 159 are provided. In these fragile portions 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 upwardly, and in the fragile portions 158 and 159, the connecting members 126b and 126a are bent downward. These fragile portions 156 to 159 are configured to intentionally 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 to the rear of the vehicle due to contact with an external structure. Then, the connecting members 126a and 126b may push the battery 104 to the rear of the vehicle to move the battery 104, and the battery 104 may collide with another structure in the engine room 102 (see FIG. 1B). Therefore, in this embodiment, the connecting members 126a and 126b are provided with fragile portions 156 to 159, and the connecting members 126a and 126b are buckled before the load at the time of front collision is transmitted to the battery 104 to prevent 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 portions is not limited to this. The fragile portion of another example can also be realized by, for example, making the connecting members 126a and 126b partially fragile by performing notches, lightening, and thinning.

FIG. 5 is a diagram showing tab 148 of FIG. 2 (a). In this embodiment, the tab 148 makes it possible to prevent the holding member 108 from coming into contact with the terminals 112a and 112b of the battery 104.

The rear support portion 136 extends to the rear surface 122 of the battery 104 (see FIG. 1B and the like) in the vehicle width direction, and if it comes into contact with the terminals 112a and 112b at the same time, there is a risk of short circuit. Therefore, in this embodiment, the width W1 narrower than the distance D1 between the two terminals 112a and 112b is set, and the tab 148 is provided ( D1> W1 ). Then, the amount of protrusion L1 from the rear surface support portion 136 of the tab 148 is set to be larger than the amount of protrusion L2 from the upper surface 110 of the terminals 112a and 112b (L1> L2). With these configurations, the rear support portion 136 and the tab 148 are prevented from touching the two terminals 112a and 112b at the same time. Therefore, it is possible to prevent the battery 104 from being short-circuited when the holding member 108 is attached to the battery 104.

Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such examples. It is clear that a person skilled in the art can come up with various modifications or modifications within the scope of the claims, which naturally belong to the technical scope of the present invention. Understood.

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

D1 ... Distance between terminals, W1 ... Tab width, L1 ... Tab protrusion amount, L2 ... Terminal protrusion amount, 100 ... Battery holding structure, 102 ... Engine room, 104 ... Battery, 106 ... Battery tray, 108 ... Holding Members, 110 ... Battery top surface, 112a, 112b ... Battery terminal, 114 ... Tray bracket, 116 ... Side member, 118 ... Battery bracket, 120 ... Battery front surface, 122 ... Battery rear surface, 124 ... Recession, 126a ... Car Connecting member on the right side in the width direction, 126b ... Connecting 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, 138 ... Side of the battery , 140 ... Left side support in the vehicle width direction, 141 ... Right side support in the vehicle width direction, 142 ... Front support, 144 ... Buffer material, 146 ... Top support, 148 ... Tab, 150 ... Right side in the vehicle width direction Bead, 151 ... Bead on the left side in the vehicle width direction, 152 ... Flange part of the hood lock member, 154 ... Bolt, 156 ... Upwardly convex fragile part in the connecting member on the left side in the vehicle width direction, 157 ... Connection on the right side in the vehicle width direction Upwardly convex fragile part in the member 158 ... Downwardly convex fragile part in the connecting member on the left side in the vehicle width direction 159 ... Downwardly convex fragile part in the right side connecting member in the vehicle width direction

Claims (5)

In a vehicle battery holding structure including a vehicle battery and a battery tray that supports the battery from below.
A rear surface support portion that supports the rear surface of the battery at a position separated upward from the battery tray, and a rear surface support portion.
Further provided with a connecting member for connecting the rear surface support portion and a predetermined vehicle body member constituting the vehicle body of the vehicle .
The battery tray is provided in the engine room of the vehicle.
The predetermined vehicle body member includes a hood lock member extending in the vehicle width direction in front of the vehicle of the battery tray.
The vehicle battery holding structure further comprises a front support portion extending from the rear surface support portion to support the front surface of the battery.
The coupling member, the hood lock member and the vehicle battery holding structure characterized that you have had a fragile portion that is has become possible buckling seat provided between the front supporting part. In a vehicle battery holding structure including a vehicle battery and a battery tray that supports the battery from below.
A rear surface support portion that supports the rear surface of the battery at a position separated upward from the battery tray, and a rear surface support portion.
Further provided with a connecting member for connecting the rear surface support portion and a predetermined vehicle body member constituting the vehicle body of the vehicle.
At least two terminals protruding upward are provided on the upper surface of the battery.
The rear support portion extends to the rear surface of the battery in the vehicle width direction.
The vehicle battery holding structure further comprises a tab that projects downward from the rear support and is narrower than the distance between the two terminals.
A vehicle battery holding structure characterized in that the amount of protrusion of the tab from the rear surface support portion is larger than the amount of protrusion of the terminal from the upper surface. The vehicle battery holding structure according to claim 1 or 2 , wherein the rear surface support portion supports an upper portion of the rear surface of the battery. The vehicle battery holding structure according to any one of claims 1 to 3, further comprising a battery bracket for attaching a lower portion of the front surface of the battery to the battery tray. The vehicle for a vehicle according to any one of claims 1 to 4 , wherein the vehicle battery holding structure further includes an upper surface support portion that extends from the rear surface support portion and supports the upper surface of the battery. Battery retention structure.

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