JP7064690B2 - Vehicle battery mounting structure - Google Patents

Description

The present invention relates to a vehicle battery mounting structure.

As this type of battery mounting structure, the battery carrier disclosed in Patent Document 1 below is known. This battery carrier is used for a type of battery having ribs on its side surface, and includes a base member as a battery tray and a clamp member fixed to the base member by bolts. Further, a locking portion protruding toward the battery is provided on the side wall of the main body of the base member.

In this battery carrier, by arranging the battery at the mounting position of the base member, the upper surface of the ribs provided on the plurality of side surfaces of the battery abuts on the lower surface of the locking portion. After that, the ribs provided on the remaining side surfaces of the battery are sandwiched between the base member and the clamp member from above and below. According to this battery carrier, the ribs of the battery can be suppressed and held from above by both the clamp member and the locking portion of the base member.

JP-A-2017-70089

By the way, a heavy battery is subjected to excessive stress in the direction of being lifted from the battery tray under a situation such as a vehicle collision. At this time, if the battery holding performance for holding the battery is low, the battery moves in the direction of rising from the battery tray according to the above stress and becomes slippery, so that the battery may be in an unstable state.

Here, when the above battery carrier is used, the movement of the battery that tries to lift from the battery tray due to the above stress can be regulated by both the clamp member and the locking portion of the base member. However, with this battery carrier, it is not possible to sufficiently suppress the rattling of the battery with respect to the battery tray, and it is difficult to obtain the required battery retention performance in a situation where an excessive impact can be received, such as when a vehicle collides. ..

The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle battery mounting structure capable of enhancing battery retention performance.

One aspect of the present invention is
It is a vehicle battery mounting structure that mounts a battery with ribs on the side to the vehicle.
The battery tray fixed to the above vehicle and
A locking portion provided on the inner wall surface of the battery tray for locking the rib of the battery, and a locking portion provided on the inner wall surface of the battery tray.
A pressing member for pressing the rib locked to the locking portion, and
A fixing member that tightens and fixes the holding member to the battery tray,
Equipped with
A plurality of engaging protrusions are provided on at least one of the locking portion and the holding member so as to be engageable with the upper surface from the facing surface facing the upper surface of the rib when the battery is attached . Each of the engaging protrusions is a linear engaging protrusion that protrudes toward the upper surface of the rib and is along the inclination of the facing surface.
The battery tray is provided with an opening for inserting and removing the battery along the mounting surface on which the battery is mounted.
The vehicle battery mounting structure, wherein the linear engaging protrusion extends in a direction intersecting the insertion direction of the battery at the opening when the battery tray is viewed from above .
It is in.

In the above embodiment, the battery is mounted on the battery tray in a state of being placed on the battery tray fixed to the vehicle. When the battery is installed, the ribs of the battery are locked by the locking portion provided on the battery tray. Then, the battery is attached to the battery tray by tightening and fixing the pressing member to the battery tray with the fixing member in a state where the rib locked to the locking portion is pressed by the pressing member.

At this time, a plurality of engaging protrusions provided on at least one facing surface of the locking portion and the holding member are pressed against the upper surface of the rib of the battery, so that the battery holding performance for holding the battery is enhanced. As a result, the rattling of the battery with respect to the battery tray can be suppressed by using a plurality of engaging protrusions.

In addition, when the battery is attached to the battery tray and receives an excessive impact such as when a vehicle collides, the battery is stressed in the direction of floating with respect to the battery tray, so multiple engagement protrusions. The force that presses against the upper surface of the rib of the battery is strengthened. This can prevent the battery from moving away from the battery tray due to the above stress.

As described above, according to the above aspect, it is possible to provide a vehicle battery mounting structure capable of enhancing the battery holding performance.

A perspective view showing a part of a vehicle in which a battery is attached. The perspective view of the battery tray which concerns on Embodiment 1. Top view of the battery tray of FIG. The figure which looked at a part of the inner wall surface of the battery tray of FIG. 3 about the insertion direction of a battery. FIG. 2 is a perspective view showing a state when the battery slides in the insertion direction in FIG. 2. FIG. 2 is a perspective view showing a state after the battery slides to the mounting position in FIG. 2. The plan view of the battery mounting structure for a vehicle of Embodiment 1. FIG. FIG. 7 is a cross-sectional view taken along the line VIII-VIII of FIG. FIG. 8 is a partially enlarged view of region A in FIG. 9 is a cross-sectional view for explaining the protruding height of the engaging protrusion and the crushing allowance dimension of the rib of the battery in FIG. The plan view of the battery mounting structure for a vehicle of Embodiment 2. FIG. 11 is a cross-sectional view taken along the line XII-XII. The partially enlarged view of the B region of FIG.

Preferred embodiments of the above embodiments will be described below.

In the vehicle battery mounting structure, it is preferable that all of the plurality of engaging protrusions are configured as linear engaging protrusions extending linearly.

According to this battery mounting structure, the contact area with respect to the upper surface of the rib of the battery can be increased by extending the engaging protrusion linearly. This can increase the resistance that regulates the movement of the battery to move out of the battery tray when stressed.

In the vehicle battery mounting structure, the battery tray is provided with an opening for inserting and removing the battery along the mounting surface on which the battery is mounted.
The linear engaging projection is preferably configured to extend in a direction intersecting the battery insertion direction at the opening when the battery tray is viewed from above.

According to this battery mounting structure, a linear engaging protrusion extending in a direction intersecting the battery insertion direction can regulate the movement of the battery from the battery tray in the insertion direction through the opening. can.

In the vehicle battery mounting structure, the locking portion is integrally molded during resin molding of the battery tray, and the linear engaging protrusion extends in the die-cutting direction during resin molding of the battery tray. It is preferably configured.

According to this battery mounting structure, a linear engaging protrusion can be provided on the locking portion during resin molding of the battery tray, and the cost of manufacturing the locking portion having the linear engaging protrusion can be kept low. ..

In the vehicle battery mounting structure, the plurality of engaging protrusions are configured to be located on the rear side of the vehicle in the assumed collision direction with respect to the battery placed on the battery tray. Is preferable.

According to this battery mounting structure, it is possible to arrange a plurality of engaging protrusions on ribs that are susceptible to stress in the direction of lifting with respect to the battery tray in the event of a vehicle collision. This makes it possible to improve the battery holding performance for holding the battery in the event of a vehicle collision.

Hereinafter, a specific embodiment of the vehicle battery mounting structure will be described with reference to the drawings.

In the drawings for explaining the present embodiment, unless otherwise specified, the front of the vehicle is indicated by an arrow FR, the inside of the vehicle is indicated by an arrow IN, and the upper portion of the vehicle is indicated by an arrow UP.

Further, the first direction which is the depth direction of the battery tray is indicated by the arrow X, the second direction which is the width direction of the battery tray is indicated by the arrow Y, and the third direction which is the height direction of the battery tray is indicated by the arrow Z. It shall be. At this time, one of the first directions X is the battery insertion direction X1, and the opposite direction of the first direction X is the battery insertion direction X2.

(Embodiment 1)
As shown in FIG. 1, the vehicle 4 according to the first embodiment is provided with an erection wall 7 at a step portion between the floor 5 and the door step 6 in the vehicle interior. The erection wall 7 has an opening 7a, and the opening 7a is configured to be covered with a removable cover 8.

The cover 8 opens the opening 5a in a state of being removed from the erection wall 7. In the state where the opening 5a is opened, the battery 2 can be mounted on the battery tray (hereinafter, also simply referred to as “tray”) 10 while sliding horizontally from the outside of the vehicle, or is mounted on the tray 10. The battery 2 can be taken out of the vehicle from the tray 10 while sliding horizontally. On the other hand, the cover 8 closes the opening 5a while being attached to the upright wall 7.

The vehicle battery mounting structure (hereinafter, also simply referred to as “battery mounting structure”) 1 of the first embodiment is a structure for mounting the battery 2 on the vehicle 4. Here, the battery 2 has a substantially rectangular parallelepiped shape, and ribs 3 are provided at the bottoms of all four side surfaces 2a. That is, the bottom of the side surface 2a of the battery 2 projects outward.

The battery mounting structure 1 includes a tray 10, a holding member 31 and a fixing member 33 (see FIG. 6), which will be described later. The tray 10 is fixed to the vehicle 4 by being attached to a metal panel 9 located in the space below the floor 5.

As shown in FIGS. 2 and 3, the tray 10 has a bottom plate portion 11 having a mounting surface 11a on which the battery 2 is mounted, and an opening for inserting and removing the battery 2 along the mounting surface 11a. A 12 and three outer peripheral wall portions 13, 14, and 15 erected on the bottom plate portion 11 so as to surround the mounting surface 11a except for the opening portion 12 are provided. The tray 10 is configured as a resin molded product integrally molded from a resin material.

The bottom plate portion 11 extends on a plane defined by the first direction X and the second direction Y. The bottom plate portion 11 is configured so that the shape in a plan view when the tray 10 is viewed from above is substantially square. The bottom plate portion 11 preferably has a plurality of reinforcing ribs (not shown) protruding upward from the mounting surface 11a.

Each of the bottom plate portions 11 is provided with three recesses 16 recessed downward from the mounting surface 11a. The first recess 16 is located at the center position in the second direction Y and at a position closer to the outer peripheral wall portion 13. The second recess 16 is arranged at a position closer to the outer peripheral wall portion 14 and at a position close to the opening 12 in the first direction X. The third recess 16 is arranged at a position closer to the outer peripheral wall portion 15 and at a position close to the opening 12 in the first direction X.

A drain port 16a and a bolt hole 16b are provided on the bottom surface of each recess 16, that is, at a low position on the mounting surface 11a. Each drainage port 16a is provided at a low position of the mounting surface 11a so as to penetrate the bottom plate portion 11 in the third direction Z which is the thickness direction, and is used for draining water flowing into the mounting surface 11a. It is configured as a drainage hole. Like the drainage port 16a, each bolt hole 16b penetrates the bottom plate portion 11 in the third direction Z, and a bolt member 18 for fastening the bottom plate portion 11 of the tray 10 to the panel 9 of the vehicle 4 is inserted. It is configured as an insertion hole. In the present embodiment, the bottom plate portion 11 is provided with three drainage ports 16a and three bolt holes 16b.

Further, the bottom plate portion 11 is provided with two bolt holes 17 and 17 arranged apart from each other in the second direction Y. Each bolt hole 17 penetrates the bottom plate portion 11 in the third direction Z, and is configured as an insertion hole into which the fixing member 33 is inserted.

The outer peripheral wall portion 13 is provided on the side opposite to the opening portion 12 of both ends of the bottom plate portion 11 in the first direction X with the first direction X as the plate thickness direction. The outer peripheral wall portion 14 is provided on one side of both ends of the bottom plate portion 11 in the second direction Y with the second direction Y as the plate thickness direction, and the outer peripheral wall portion 15 has the second direction Y as the plate thickness direction. It is provided on the other side of both ends of the bottom plate portion 11 in the second direction Y.

The three outer wall portions 13, 14 and 15 of the tray 10 have inner wall surfaces 13a, 14a and 15a surrounding the battery 2 from the side, and the ribs 3 of the battery 2 are formed on the inner wall surfaces 13a, 14a and 15a. A plurality of locking portions 20 capable of locking the above are provided.

The plurality of locking portions 20 lock the ribs 3 to regulate the movement of the heavy battery 2 in a situation where the battery 2 may receive an excessive impact such as when the vehicle 4 collides. , This battery 2 functions to prevent the battery 2 from coming out of the tray 10. These plurality of locking portions 20 are made of a resin material that is harder than the case member forming the outer surface of the battery 2, and are simultaneously molded during the resin molding of the tray 10.

The plurality of locking portions 20 include two first locking portions 20A provided on the inner wall surface 13a of the outer peripheral wall portion 13 and one second locking portion 20B provided on the inner wall surface 14a of the outer peripheral wall portion 14. And one third locking portion 20C provided on the inner wall surface 15a of the outer peripheral wall portion 15.

Each locking portion 20 has a flat plate-shaped first locking piece 21 extending with the first direction X as the longitudinal direction, and a flat plate-shaped extending upward from the first locking piece 21 in the second direction Y. It has a plurality of second locking pieces 22 and. The plurality of second locking pieces 22 are all configured so that the side views form a substantially triangular shape, and are arranged so as to be spaced apart from each other.

Below the first locking piece 21 of each locking portion 20, an insertion space is formed in which the rib 3 of the battery 2 is inserted when the battery 2 slides the mounting surface 11a of the tray 10 in the insertion direction X1. Has been done. When the rib 3 is inserted into this insertion space, the lower surface 21a of the first locking piece 21 becomes the facing surface 23 that faces the upper surface 3a of the rib 3 of the battery 2 so as to be engageable.

The facing surface 23 is configured to be a surface substantially parallel to the upper surface 3a of the rib 3. That is, in the present embodiment, since the upper surface 3a of the rib 3 is an inclined surface inclined with respect to the horizontal plane, the facing surface 23 is also an inclined surface following the upper surface 3a. When the upper surface 3a of the rib 3 is a horizontal plane along the horizontal plane, it is preferable that the facing surface 23 is also a horizontal plane following the upper surface 3a.

In order to reduce the weight of the tray 10, it is preferable to use a plant-derived plant filler having a smaller specific gravity than a general resin material and to mix the plant filler with the resin material. For example, a resin material in which wood flour is mixed at a ratio of 20% by weight, glass fiber is mixed at a ratio of 20% by weight, and polypropylene resin is mixed at a ratio of 60% by weight can be used. Such a resin material has high fluidity and can be used for injection molding with higher productivity than the press method. Therefore, the lightweight tray 10 can be manufactured at low cost.

As shown in FIGS. 2 to 4, the first locking piece 21 of the first locking portion 20A can be engaged with the upper surface 3a from the facing surface 23 facing the upper surface 3a of the rib 3 when the battery 2 is attached. A plurality of engaging protrusions 24 are provided.

The plurality of engaging protrusions 24 project toward the upper surface 3a of the rib 3 and extend along the inclination of the facing surface 23. Further, as shown in FIGS. 3 and 4, the plurality of engaging protrusions 24 provided on one of the first locking portions 20A are all linear engaging protrusions extending linearly in the first direction D1. It is configured as. The plurality of engaging protrusions 24 provided on the other first locking portion 20A are all configured as linear engaging protrusions extending linearly in the second direction D2. The engaging protrusion 24 can also be referred to as a rib provided on the facing surface 23.

Here, the first direction D1 is a direction that intersects the insertion direction X2 of the battery 2 in the opening 12 when the tray 10 is viewed from above, and particularly when the tray 10 is resin-molded, one of the first locking portions. This is the die-cutting direction of the first mold C1 used for resin molding of 20A (see FIG. 3). Further, the second direction D2 is a direction that intersects the insertion direction X2 of the battery 2 in the opening 12 when the tray 10 is viewed from above, and particularly when the tray 10 is resin-molded, the other first locking portion 20A. This is the die-cutting direction of the second mold C2 used for resin molding (see FIG. 3).

As shown in FIG. 5, in the mounting work of the battery 2, the battery 2 is first slid in the insertion direction X1 along the mounting surface 11a of the tray 10 and placed at the planned mounting position P in FIG.

When the battery 2 slides in the insertion direction X1 and is arranged at the mounting position P, the rib 3 on the front side of the insertion direction X1 of the battery 2 faces the first locking pieces 21 of the two first locking portions 20A. It faces the surface 23 and engages with a plurality of engaging protrusions 24 provided on the facing surface 23. Therefore, the first locking portion 20A functions to regulate the movement of the battery 2 in the third direction Z after sliding to the mounting position P.

Further, until the battery 2 slides in the insertion direction X1 and is arranged at the mounting position P, the rib 3 on the left side of the insertion direction X1 of the battery 2 is the first locking piece 21 of the second locking portion 20B. The rib 3 on the right side of the insertion direction X1 of the battery 2 engages with the smooth facing surface 23 of the first locking piece 21 of the third locking portion 20C.

Therefore, both the second locking portion 20B and the third locking portion 20C have a function of restricting the movement of the battery 2 in the third direction Z after sliding to the mounting position P (similar to the first locking portion 20A). In addition to the above function), by making the facing surface 23 of the first locking piece 21 a smooth surface, it also has a function of smoothly guiding the battery 2 to the mounting position P in the insertion direction X1.

As shown in FIGS. 6 and 7, the battery 2 arranged at the mounting position P is fixed to the tray 10 by using the holding member 31, the bracket 32, and the fixing member 33.

The pressing member 31 is used after the rib 3 of the battery 2 is locked by the locking portion 20 when the battery 2 is attached. The pressing member 31 faces the upper surface 3a of a rib 3 (in this embodiment, a rib 3 on the rear side of the insertion direction X1 of the battery 2) different from the rib 3 locked by the locking portion 20. It has a surface 31a and has a function of pressing the upper surface 3a of the rib 3 via the facing surface 31a. The facing surface 31a is an inclined surface that is inclined following the upper surface 3a of the rib 3.

The bracket 32 is arranged on the side opposite to the pressing member 31 with the bottom plate portion 11 of the tray 10 interposed therebetween, and is temporarily fixed to the bottom plate portion 11 by rivets (not shown). The bracket 32 has a function of sandwiching the rib 3 of the battery 2 with the holding member 31.

The fixing member 33 is for tightening and fixing the pressing member 31 to the tray 10, and is configured as a bolt member in the present embodiment. When the fixing member 33 is tightened with the rib 3 on the rear side of the insertion direction X1 of the battery 2 sandwiched between the pressing member 31 and the bracket 32, the rib 3 is fixed in the fixing direction by the fixing member 33 (FIG. It is urged to be pressed against the mounting surface 11a of the tray 10 by the tightening force (downward in 6).

As shown in FIG. 8, the tray 10 is fastened and fixed to the panel 9 by a bolt member 18 in each of the three recesses 16. In particular, the tray 10 is fastened and fixed by a bolt member 18 in a state where the extension piece 32a of the bracket 32 is sandwiched between the extension piece 32a and the panel 9 in each of the two recesses 16 near the opening 12.

By fastening the tray 10 and the bracket 32 together to the panel 9 in this way, the stress received by the battery 2 is made of metal, which is stronger than the resin tray 10 via the extension piece 32a of the bracket 32. It becomes easy to be transmitted to the panel 9. This enhances the function of preventing the tray 10 from being deformed and the battery 2 from being detached from the tray 10.

As shown in FIG. 9, when the battery 2 is arranged at the mounting position P, the rib 3 on the front side of the insertion direction X1 of the battery 2 is the facing surface of the first locking piece 21 of the first locking portion 20A. It comes into contact with a plurality of engaging protrusions 24 protruding from 23. At this time, since the first locking portion 20A is harder than the outer surface of the battery 2 as described above, the plurality of engaging protrusions 24 are provided as the battery 2 slides in the insertion direction X1. It bites into the upper surface 3a of the rib 3 of. That is, the upper surface 3a of the rib 3 of the battery 2 is crushed by the plurality of engaging protrusions 24.

As a result, the battery holding performance at the time of mounting the battery 2 is improved as compared with the structure in which the facing surface 23 is not provided with the plurality of engaging protrusions 24. In this case, the facing surface 23 of the first locking portion 20A can hold the rib 3 of the battery 2 more firmly than the facing surface 23 of the other locking portions 20B and 20C.

Further, when the vehicle 4 collides forward with the insertion direction X2 after the battery 2 is attached and the battery 2 receives an upward stress, the plurality of engaging protrusions 24 are formed on the upper surface of the rib 3 of the battery 2 by this stress. The degree of biting into 3a becomes stronger.

As shown in FIG. 10, when the protruding height of the engaging protrusion 24 of the first locking portion 20A is Ha, the protruding height Ha is set to 0 in order to obtain the desired holding performance for the battery 2. It is preferable to set it to 5.5 mm or more. Considering the dimensions of the battery 2 and the variation in assembly, it is particularly preferable to set the protrusion height Ha to about 1 to 3 mm. Further, in order to avoid excessive interference of the engaging protrusion 24 with the battery 2, it is preferable to set the radius of curvature R of the engaging protrusion 24 to about 0.5 to 3 mm.

On the other hand, when the crushing allowance dimension (biting dimension) of the rib 3 of the battery 2 by the engaging projection 24 of the first locking portion 20A is Hb, when the holding performance by the engaging projection 24 is taken into consideration, this crushing allowance dimension It is preferable to set Hb to about 0.1 to 1.0 mm. Particularly preferably, this crushing allowance dimension Hb is set to about 0.5 mm.

When the material of the outer surface of the battery 2 is PP (polypropylene) resin or HDPE (high density polyethylene) resin, a resin material harder than these resin materials is used for the engaging protrusion 24 of the first locking portion 20A. Is preferable.

As the hard resin material, as described above, in addition to the resin material in which wood flour is mixed at a ratio of 20% by weight, glass fiber at 20% by weight, and polypropylene resin at a ratio of 60% by weight, glass fiber or glass is mixed with polypropylene resin. Examples thereof include a resin material mixed with a fiber mat. Such a resin material has a flexural modulus (MPa) representing rigidity larger than that of PP resin or HDPE resin, and is effective for use as a resin material that is harder than the material of the outer surface of the battery 2. A material having a high flexural modulus has a relatively high rigidity as compared with a material having a low flexural modulus.

Next, the operation and effect of the above-mentioned first embodiment will be described.

According to the battery mounting structure 1 described above, the battery 2 is mounted on the tray 10 in a state of being placed on the tray 10 fixed to the vehicle 4. When the battery 2 is attached, the rib 3 of the battery 2 is locked by the locking portion 20 provided on the tray 10. Then, the battery 2 is attached to the tray 10 by tightening and fixing the pressing member 31 to the tray 10 with the fixing member 33 in a state where the rib 3 locked to the locking portion 20 is pressed by the pressing member 31. ..

At this time, the plurality of engaging protrusions 24 provided on the facing surface 23 of the first locking portion 20A are pressed against the upper surface 3a of the rib 3 of the battery 2, so that the battery holding performance for holding the battery 2 is improved. It will increase. As a result, the rattling of the battery 2 with respect to the tray 10 can be suppressed by utilizing the plurality of engaging protrusions 24.

Further, when the battery 2 is attached to the tray 10 and receives an excessive impact such as when the vehicle 4 collides, the battery 2 receives stress in the direction of floating with respect to the tray 10, so that a plurality of batteries 2 are applied. The force for pressing the engaging protrusion 24 against the upper surface 3a of the rib 3 of the battery 2 is strengthened. This makes it possible to prevent the battery 2 from moving away from the tray 10 due to the above stress.

Therefore, it becomes possible to provide the battery mounting structure 1 capable of enhancing the battery holding performance.

According to the battery mounting structure 1 described above, the contact region of the rib 3 of the battery 2 with respect to the upper surface 3a can be increased by extending all of the plurality of engaging protrusions 24 in a linear shape. As a result, it is possible to increase the resistance that regulates the movement of the battery 2 to come off the tray 10 when it receives stress.

According to the battery mounting structure 1 described above, the battery 2 will move from the tray 10 to the insertion direction through the opening 12 by the linear engaging projection 24 extending in the direction intersecting the insertion direction D2 of the battery 2. It is possible to regulate the movement.

According to the battery mounting structure 1 described above, a linear engaging protrusion 24 can be provided on the first locking portion 20A during resin molding of the tray 10, and the first locking portion having the linear engaging protrusion 24 can be provided. The cost of manufacturing 20A can be kept low.

Hereinafter, other embodiments related to the above-described first embodiment will be described with reference to the drawings. In other embodiments, the same elements as the elements of the first embodiment are designated by the same reference numerals, and the description of the same elements will be omitted.

(Embodiment 2)
As shown in FIG. 11, the battery mounting structure 101 of the second embodiment has the same configuration of the second locking portion 20B and the third locking portion 20C of the tray 110 and the holding member 131 as described in the first embodiment. It is different from that of battery mounting structure 1.
Other configurations are the same as those in the first embodiment.

In the tray 110 of the battery mounting structure 101, the second locking portion 20B provided on the inner wall surface 14a of the outer peripheral wall portion 14 is the lower surface 21a of the first locking piece 21 as in the first locking portion 20A. A plurality of engaging protrusions 24 are provided on a certain facing surface 23. Similarly, the third locking portion 20C provided on the inner wall surface 15a of the outer peripheral wall portion 15 is provided with a plurality of engaging protrusions 24 on the facing surface 23 which is the lower surface 21a of the first locking piece 21. ..

As shown in FIGS. 11 and 12, a plurality of engaging protrusions 34 having the same function as the engaging protrusions 24 are provided on the facing surface 31a of the pressing member 131. The plurality of engaging protrusions 34 project toward the upper surface 3a of the rib 3 and extend along the inclination of the facing surface 31a. Further, the plurality of engaging protrusions 34 are configured to extend in a direction intersecting the insertion direction D2 of the battery 2 in the opening 12 when the tray 110 is viewed from above.

As shown in FIG. 13, when the fixing member 33 is tightened in a state where the rib 3 on the rear side of the insertion direction X1 of the battery 2 is sandwiched between the pressing member 131 and the bracket 32, the rib 3 becomes the rib 3. It is urged to be pressed against the mounting surface 11a of the tray 110 by the tightening force in the fixing direction (downward in FIG. 13) by the fixing member 33.

Here, the holding member 131 is made of a metal material that is harder than the outer surface of the battery 2. As a result, the plurality of engaging protrusions 34 provided on the facing surface 31a of the pressing member 131 bite into the upper surface 3a of the rib 3 of the battery 2 by the tightening force of the fixing member 33. That is, the upper surface 3a of the rib 3 of the battery 2 is crushed by the plurality of engaging protrusions 34. It is preferable that the engaging protrusion 34 is set to the protruding height Ha as described above, similarly to the engaging protrusion 24.

Further, the plurality of engaging protrusions 24 and 34 are provided corresponding to any of the ribs 3 on all the side surfaces of the battery 2. Therefore, when assuming a front collision, a rear collision, a right side collision, and a left side collision of the vehicle 4, any one of the plurality of engaging protrusions 24 and 34 is rearward in all the assumed collision directions. It will be located on the side.

According to the battery mounting structure 101 of the second embodiment, a plurality of engaging protrusions 24 or a plurality of engaging protrusions 24 or a plurality of engaging protrusions 24 are engaged with all the ribs 3 which are susceptible to stress in the floating direction with respect to the tray 110 when the vehicle 4 collides with the battery 2. The protrusion 34 can be arranged. Further, as compared with the first embodiment, the number of portions that bite into the upper surface 3a of the rib 3 of the battery 2 can be increased. This makes it possible to improve the battery holding performance for holding the battery 2 in the event of a collision of the vehicle 4.
Other than that, it has the same effect as that of the first embodiment.

As a modification particularly related to the second embodiment, at least one of the first locking portion 20A, the second locking portion 20B, and the third locking portion 20C has a facing surface 23 of the first locking piece 21. It is also possible to adopt a structure in which the plurality of engaging protrusions 24 of the above are omitted. Further, it is also possible to adopt a structure in which the plurality of engaging protrusions 34 on the facing surface 31a are omitted in the pressing member 131.

The present invention is not limited to the above-described embodiment, and various applications and modifications can be considered as long as the object of the present invention is not deviated. For example, the following embodiments to which the above-described embodiments are applied can also be implemented.

In the above-described embodiment, the case where the plurality of engaging projections 24 provided on the facing surface 23 of the first locking portion 20A are all linear engaging projections extending linearly has been illustrated, but instead of this. A structure in which all or part of the plurality of engaging protrusions 24 are linear engaging protrusions extending in a curved shape, a structure in which all or part of the plurality of engaging protrusions 24 are point-shaped engaging protrusions, and the like. Can also be adopted. Further, the direction in which the linear engaging projection extends is not limited to only one direction, and can be appropriately changed as needed.

In the above-described embodiment, the case where the locking portion 20 is integrally molded with the trays 10 and 110 has been illustrated, but instead of this, the locking portion 20 may be retrofitted to the trays 10 and 110 as a separate member. good.

In the above-described embodiment, the trays 10 and 110 arranged in the space below the floor 5 of the vehicle 4 are exemplified, but the location of the trays 10 and 110 is not limited to the space below the floor 5 and the vehicle. The trays 10 and 110 can be arranged at appropriate positions in 4 according to the request for the mounting position of the battery 2.

Further, in view of the above embodiment and other modified examples, the following aspects can be adopted.

As one aspect,
"A vehicle battery tray that is fixed to the vehicle.
It has a locking part provided on the inner wall surface that surrounds the battery with ribs on the side from the side.
A vehicle battery tray provided with a plurality of engaging protrusions protruding from the facing surface facing the upper surface of the rib so as to be engageable with the upper surface when the battery is attached to the locking portion. "
Can be taken.

According to this aspect, a plurality of engaging protrusions provided on the facing surface of the locking portion are pressed against the upper surface of the rib of the battery, so that the battery holding performance for holding the battery is enhanced. As a result, the rattling of the battery with respect to the battery tray can be suppressed by using a plurality of engaging protrusions.

1,101 Vehicle battery mounting structure 2 Battery 2a Side surface 3 Rib 3a Top surface 4 Vehicle 10,110 Battery tray 11a Mounting surface 12 Opening 13a, 14a, 15a Inner wall surface 20 Locking part 20A First locking part (locking) Department)
20B Second locking part (locking part)
20C 3rd locking part (locking part)
23 Facing surfaces 24,34 Engagement protrusions (linear engagement protrusions)
31,131 Holding member 31a Facing surface 33 Fixing member D1, D2 Die-cutting direction X2 Insertion direction

Claims (3)

It is a vehicle battery mounting structure that mounts a battery with ribs on the side to the vehicle.
The battery tray fixed to the above vehicle and
A locking portion provided on the inner wall surface of the battery tray for locking the rib of the battery, and a locking portion provided on the inner wall surface of the battery tray.
A pressing member for pressing the rib locked to the locking portion, and
A fixing member that tightens and fixes the holding member to the battery tray,
Equipped with
A plurality of engaging protrusions are provided on at least one of the locking portion and the holding member so as to be engageable with the upper surface from the facing surface facing the upper surface of the rib when the battery is attached . Each of the engaging protrusions is a linear engaging protrusion that protrudes toward the upper surface of the rib and is along the inclination of the facing surface.
The battery tray is provided with an opening for inserting and removing the battery along the mounting surface on which the battery is mounted.
The linear engaging protrusion extends in a direction intersecting the insertion direction of the battery at the opening when the battery tray is viewed from above, and is a vehicle battery mounting structure. The locking portion is integrally molded at the time of resin molding of the battery tray.
The vehicle battery mounting structure according to claim 1, wherein the linear engaging protrusion extends in a die-cutting direction during resin molding of the battery tray. The vehicle according to claim 1 or 2, wherein the plurality of engaging protrusions are configured to be located on the rear side of the vehicle in the assumed collision direction with respect to the battery placed in the battery tray. Battery mounting structure.

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