JP2019081442A - Onboard structure of storage battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an in-vehicle structure of a storage battery capable of reducing costs while easily assembling a pedestal. An in-vehicle structure of a storage battery includes a floor body 14, a storage battery 10 mounted on a lower portion of a rear seat 12, a main body 40 that receives the load of the rear seat 12, and legs 42 that extend downward from the main body 40. The floor body 14 includes a pedestal 16 and a vertical wall portion that connects the mounting portion 20 on which the storage battery 10 is mounted, the floor portion 24 lower than the mounting portion 20, and the mounting portion 20 and the floor portion 24. 22 has a vertical wall portion 22 to be fastened to the leg portion 42, and the leg portion 42 has the vertical wall portion 22 of the leg portion 42 when its end is abutted against the floor portion 24. The shape is such that the fastening height with the wall portion 22 substantially matches the fastening height of the vertical wall portion 22 with the leg portion 42. [Selection diagram] Fig. 1

Description

  The present specification discloses an on-vehicle structure of a storage battery, in particular, an on-vehicle structure of a storage battery in which the storage battery is mounted below a seat.

  BACKGROUND In recent years, an electric vehicle (for example, a hybrid car and an electric car) equipped with a rotating electrical machine as one of driving power sources is widely known. In such an electric vehicle, a relatively large storage battery is mounted to supply power to the rotating electrical machine. And in order to use space effectively, it is proposed by some to mount a storage battery in the lower part of a seat.

  When the storage battery is mounted below the seat, a pedestal is provided between the storage battery and the seat. The pedestal is fully fastened to the floor body by a fastening bolt or the like. Conventionally, the pedestal is positioned by a location pin and temporarily placed prior to the full fastening. Specifically, the floor body and the pedestal are provided with a floor-side positioning hole and a pedestal-side positioning hole through which the location pin is inserted. Then, by inserting the location pin into the floor-side positioning hole and the pedestal-side positioning hole, the pedestal is temporarily placed at a predetermined position. By temporarily placing the pedestal using such a location pin, the operator can stably fasten the pedestal with both hands.

Unexamined-Japanese-Patent No. 2010-179688

  Here, the floor side positioning holes formed in the floor body communicate the inside and the outside of the vehicle compartment. Therefore, there is a possibility that outside air or moisture may intrude into the vehicle compartment through the floor side positioning hole. Under the circumstances, it has been conventionally proposed to provide a cap for sealing the positioning hole, a cap closely sealing the outer surface of the floor body, and a cover which covers the location pin projecting from the floor-side positioning hole. By providing such a cap or the like, the floor-side positioning hole is airtightly sealed, and the outside air or the like is prevented from entering. However, when such a cap or the like is provided, the manufacturing process is complicated and the cost is increased.

  Patent Document 1 discloses a technique for attaching a lower rail of a seat to a member (leg member) on the floor body side using a caulking pin and a location pin. The location pins are crimped and fixed after being inserted into holes formed in the lower rails and the leg members respectively. However, in this patent document 1, the lower rail and the leg members through which the location pin is inserted are both disposed in the vehicle compartment, so the seal mechanism (cap etc.) for blocking the outside air as described above is unnecessary. is there. Further, the technology described in Patent Document 1 relates only to a vehicle mounting structure of a seat, and Patent Document 1 does not disclose the vehicle mounting structure of a storage battery. Therefore, the technique described in Patent Document 1 can not solve the above-mentioned problem in temporarily placing the pedestal using the location pin.

  Therefore, in this specification, an on-vehicle structure of a storage battery that can be reduced in cost while the attachment of the pedestal is simple is disclosed.

  The on-vehicle structure of the storage battery disclosed in the present specification includes a seat on which an occupant sits, a floor body forming a floor surface of a cabin, a storage battery mounted between the seat and the floor body, and the storage battery A pedestal having a main body portion interposed between the seat and the load receiving the load of the seat, and a leg portion extending downward from a front end of the main body portion, and the floor body has the storage battery mounted thereon A vertical wall portion connecting the mounting portion and the floor portion located in front of the vehicle than the mounting portion and lower than the mounting portion, and connecting the mounting portion and the floor portion, the fastening portion being fastened to the leg portion A vertical wall portion, and when the leg portion abuts the end thereof to the floor portion, a fastening height of the leg portion with the vertical wall portion is the vertical wall portion And the fastening height with the corresponding leg of the It is characterized in.

  According to this configuration, the pedestal can be temporarily placed at the predetermined height position only by bringing the end of the leg portion into contact with the floor portion. Therefore, the pedestal can be easily assembled. In addition, since the location pin and the positioning hole are not required, the cost can be reduced.

  The two or more leg portions may be provided at intervals in the vehicle width direction. By providing two or more legs, the pedestal can be temporarily placed more stably.

  Further, the vertical wall portion has a substantially cylindrical shape elongated in the vehicle width direction, and a fastening bolt for fastening the leg portion to the vertical wall portion protrudes into the cylinder of the vertical wall portion and tightens. It may be done. By making the vertical wall portion cylindrical, the strength around the vertical wall portion can be improved. Further, by causing the fastening bolt to protrude into the cylinder, it is possible to reduce the adverse effect of dust and moisture outside the vehicle on the fastening bolt and the like.

  According to the on-vehicle structure of the storage battery disclosed in the present specification, the pedestal can be temporarily placed at a predetermined height position only by bringing the end of the leg portion into contact with the floor portion. Therefore, the pedestal can be easily assembled. In addition, since the location pin and the positioning hole are not required, the cost can be reduced.

It is the schematic of the vehicle-mounted structure of a storage battery. It is the schematic which saw the base from the upper side. It is sectional drawing of a leg part periphery. It is a perspective view of a leg. It is a front view of the leg part of conventional structure. It is sectional drawing of a leg part periphery in the AA in FIG.

  Hereinafter, the on-vehicle structure of storage battery 10 will be described with reference to the drawings. FIG. 1 is a schematic view of an on-vehicle structure of storage battery 10. Moreover, FIG. 2 is the schematic which looked at the base 16 from the upper side. This on-vehicle structure is adopted for an electric vehicle that travels by power generated by a rotating electrical machine (not shown). The electric vehicle includes an electric car having only a rotating electric machine as a power source, and a hybrid car having another power source (for example, an engine or the like) in addition to the rotating electric machine.

  Storage battery 10 (battery) is a secondary battery that transmits and receives electric power to and from the rotating electrical machine. The storage battery 10 has a substantially rectangular shape elongated in the vehicle width direction. Further, as shown in FIG. 1, the storage battery 10 is placed on the floor body 14 at the lower part of the rear seat 12. In other words, storage battery 10 is disposed in the gap between rear seat 12 and floor body 14. In addition, if the storage battery 10 can be arrange | positioned in the lower part of a sheet | seat, it does not necessarily need to be rectangular shape, and the shape and size may be changed suitably.

  The floor body 14 is a body member that constitutes the floor surface of the passenger compartment 100. The floor body 14 is configured by combining a sheet metal member for reinforcement in addition to the floor panel exposed in the passenger compartment 100 as described later. The back surface of the floor body 14 is exposed to the outside of the vehicle 110, and the floor body 14 functions as a partition that separates the vehicle compartment 100 from the vehicle exterior 110.

  Of the floor body 14, a portion directly below the rear seat 12 is a mounting portion 20 on which the storage battery 10 is mounted. The mounting portion 20 is higher than the floor portion 24 located forward of the mounting portion 20, and extends substantially upward between the mounting portion 20 and the floor portion 24 to form the step. A vertical wall 22 is present. The leg portion 42 of the pedestal 16 described later is fastened to the vertical wall portion 22. Further, the end of the leg portion 42 of the pedestal 16 abuts or is placed on the floor portion 24.

  The rear seat 12 is a seat 12 disposed behind the driver's seat and the front passenger seat. The rear seat 12 is a three-seat seat and extends over substantially the entire width of the passenger compartment 100 without being split along the way. An upper rail 13 is fixed to the bottom surface of the rear seat 12, and the upper rail 13 is slidably assembled to a lower rail 44 provided on the pedestal 16.

  The pedestal 16 is interposed between the storage battery 10 and the rear seat 12 and receives the load of the rear seat 12. Specifically, the pedestal 16 includes a plate-like main body 40 to which the rear seat 12 is assembled, and a pair of legs 42 extending downward from the front end of the main body 40. A lower rail 44 to which the upper rail 13 of the rear seat 12 is attached is provided on the upper surface of the main body 40. Further, the rear end of the main body 40 is placed on and fastened to a framework member 18 (so-called cross member) extending in the width direction of the vehicle. The rear seat 12 is mounted on the main body 40 via the upper rail 13 and the lower rail 44. By providing the main body 40 (the base 16), the storage battery 10 is protected from the load from the rear seat 12 and the collision load generated at the time of a collision.

  A pair of legs 42 extend from the front end of the main body 40. The two legs 42 are spaced apart in the vehicle width direction. Each leg 42 extends downward from the main body 40, overlaps with the vertical wall 22 of the floor panel 26 in the thickness direction, and is fastened to the vertical wall 22. Further, as shown in FIG. 3, the end 48 of the leg 42 abuts on or is close to the floor portion 24 of the floor body 14.

  The configuration around the legs 42 will be described in detail with reference to FIGS. 3 and 4. FIG. 3 is a cross-sectional view around the leg 42, and FIG. 4 is a perspective view of the leg 42. As shown in FIG. As described above, the legs 42 are fastened to the vertical wall 22 of the floor body 14. The floor body 14 includes a floor panel 26 exposed in the passenger compartment 100, an inner reinforcement 28 (hereinafter referred to as “inner R / F 28”) which is a sheet metal member for reinforcing the floor panel 26, and an outer reinforcement 30. (Hereinafter referred to as "outer R / F 30"). The inner R / F 28 is a floor around the first corner portion 38 so as to reinforce around the corner portion (hereinafter referred to as “first corner portion 38”) of the floor portion 24 and the vertical wall portion 22 in the floor panel 26. A sheet metal member along the back surface of the panel 26. The inner R / F 28 is welded to the back surface of the floor panel 26.

  The outer R / F 30 is bent and joined to the back surface of the floor panel 26 in order to cooperate with the first corner portion 38 to form a space having a substantially V-shaped cross section. That is, around the first corner portion 38, a rectangular tube long in the vehicle width direction is formed. This square tube portion is generally called a center floor cross 29. The center floor cross 29 (around the first corner portion 38) is formed in a square tube shape while being reinforced by a sheet metal member, and thus has higher strength than other portions. The center floor cross 29 is partially open and in communication with the outside 110 of the vehicle.

  In the floor body 14 of the floor body 26 constituting the vertical wall portion 22 and the inner R / F 28, floor side fastening holes 34 through which the fastening bolts 60 are inserted are formed. Further, on the back surface of the inner R / F 28, a fastening nut 36 coaxially disposed with the floor side fastening hole 34 and screwed with the fastening bolt 60 is welded. The fastening nut 36 is used to fasten the leg portion 42 of the pedestal 16.

  A floor mat 32 is mounted on the upper surface of the floor portion 24. The floor mat 32 is, for example, a member which is soft and easily deformable to some extent, such as a rubber material and a carpet material. When the pedestal 16 is temporarily placed, the end 48 of the leg 42 described later abuts on the floor mat 32.

  A pedestal side fastening hole 46 through which the fastening bolt 60 is inserted is formed in the leg portion 42 of the pedestal 16. The leg portion 42 is fastened to the vertical wall portion 22 by inserting the fastening bolt 60 through the pedestal side fastening hole 46 and the floor side fastening hole 34 and screwing the fastening bolt 60 to the fastening nut 36.

  Both the pedestal side fastening hole 46 and the floor side fastening hole 34 have a diameter larger than that of the male screw portion of the fastening bolt 60, and between the respective fastening holes 34 and 46 and the male screw portion, There is a gap. Between the head of the fastening bolt 60 and the leg 42 in order to prevent outside air of the vehicle exterior 110 from entering the compartment 100 through the gap between the fastening holes 34 and 46 and the male screw portion. Is provided with a seal member 62 made of an elastic material (e.g., Eptseal (registered trademark)). The seal member 62 is in close contact with the head and the leg 42 of the fastening bolt 60 to prevent the entry of the outside air.

  The leg portion 42 has its end 48 fastened to the floor portion 24 (more precisely, the floor mat 32 laid on the floor portion 24), the fastening height of the leg portion 42 with the vertical wall portion 22 However, the fastening height of the vertical wall 22 with the leg 42 is substantially the same. Such a shape is to temporarily place the pedestal 16 without using the location pin. This will be described in comparison with the prior art. FIG. 5 is a perspective view of the conventional leg 42, and FIG. 6 is a cross-sectional view of the leg 42 and its periphery taken along the line A-A in FIG.

  The conventional leg 42 is relatively short, as shown in FIG. 6, and when the axis of the pedestal side fastening hole 46 is aligned with the axis of the fastening nut 36, the end 48 of the leg 42 is the floor 24. It is widely separated from Further, in addition to the pedestal side fastening hole 46, a pedestal side positioning hole 84 is further provided in the conventional leg portion 42. Similarly, in addition to the floor side fastening holes 34, floor side positioning holes 80 are formed in the vertical wall portion 22 of the floor body 14.

  In this conventional structure, when fastening the leg portion 42 to the vertical wall portion 22, the operator first supports the front end portion of the pedestal 16 with one hand with the rear end portion of the pedestal 16 mounted on the framework member 18. , And adjust the height of the legs 42 schematically. Then, in that state, the worker inserts the location pin 88 into the pedestal side positioning hole 84 and the floor side positioning hole 80 with the other hand. By inserting the location pin 88 into the two positioning holes 80 and 84, the leg 42 is temporarily placed at a predetermined height. Since the temporary placement eliminates the need to manually support the front end portion of the pedestal 16, the operator can use both hands. In this state, the operator holds the fastening bolt 60 with one hand and the impact driver with the other hand to screw the fastening bolt 60 onto the fastening nut 36 and the leg 42 to the vertical wall 22 Finalize the

  Thus, conventionally, the pedestal 16 has been temporarily placed at a predetermined height position using the location pin 88. By temporarily placing, the worker can use both hands, so the work of final fastening between the leg 42 and the vertical wall 22 can be easily performed.

  However, when the location pin 88 is used, the outside air of the vehicle exterior 110 may intrude into the passenger compartment 100 through the pedestal side positioning hole 84 and the floor side positioning hole 80. In the prior art, a seal member 86 made of an elastic material (e.g., Eptsealer (registered trademark) or the like) is provided between the head of the location pin 88 and the leg 42 in order to prevent the entry of the outside air. . Further, the inner R / F 28 is attached with a cap 82 airtightly in close contact with the inner R / F 28 while covering the location pin 88 projecting from the floor-side positioning hole 80.

  However, in the case of such a configuration, it is necessary to prepare the seal member 86 and the cap 82 in order to prevent the outside air from entering, which causes the manufacturing process to be complicated and the cost to be increased. Further, in the case of the configuration using the location pin 88, a process of inserting the location pin 88 in a state in which the front end of the pedestal 16 is held with one hand is required, which also causes an increase in the number of steps. Furthermore, when using the location pin 88, it is necessary to provide the floor side positioning hole 80 in the floor body 14, but there is also a problem that the strength of the floor body 14 decreases as the number of such holes increases.

  In the vehicle-mounted structure of the storage battery 10 disclosed in the present specification, when the end 48 of the leg portion 42 is abutted against the floor portion 24, the fastening height of the leg portion 42 with the vertical wall portion 22 is the vertical wall portion 22. And the axial center of the pedestal side fastening hole 46 and the axial center of the fastening nut 36 substantially coincide with each other. As a result, the pedestal 16 can be temporarily placed at an appropriate position without using the location pin 88, simply by applying the end 48 of the leg 42 to the floor 24.

  Here, the “almost match” of the fastening height means the matching degree to which the operator can screw the fastening bolt 60 to the fastening nut 36 without raising the pedestal 16 and adjusting the height. . That is, a taper 60 a is formed at the end of the fastening bolt 60. When the taper 60a abuts on the periphery of the female screw of the fastening nut 36, the fastening bolt 60 is automatically guided to a coaxial position with the fastening nut 36 by this abutting relationship. Therefore, if the height range of the taper 60a of the fastening bolt 60 is deviated, the fastening bolt 60 can be screwed onto the fastening nut 36 without lifting the pedestal 16 and adjusting the height, so the fastening height Is almost "matched".

  In the temporary placement state in which the end 48 of the leg 42 is in contact with the floor mat 32, the leg 42 can move upward, but moves almost downward because the end 48 interferes with the floor 24. Can not. Therefore, when the axis of the pedestal side fastening hole 46 in the temporarily placed state is higher than the axis of the fastening nut 36, it is necessary to move the leg 42 downward, but as described above, this leg 42 It is difficult to make the axis of the pedestal side fastening hole 46 coincide with the axis of the fastening nut 36 because it is difficult to move downward. Therefore, it is preferable that the axis of the pedestal side fastening hole 46 in the temporarily placed state be the same as the axis of the fastening nut 36 or slightly lower than the axis of the fastening nut 36. However, since the floor mat 32 is elastically deformable, the leg portion 42 can be moved downward, though slightly, by compressively deforming the floor mat 32. Therefore, within the range of compressive deformation of the floor mat 32, the axis of the pedestal side fastening hole 46 in the temporarily placed state may be higher than the axis of the fastening nut 36.

  When the axial line of the pedestal side fastening hole 46 is positioned slightly lower than the axial line of the fastening nut 36 in the temporarily placed state, when the leg 42 is finally fastened to the vertical wall 22 using the fastening bolt 60 The leg portion 42 is raised to a height at which the axis of the pedestal side fastening hole 46 coincides with the axis of the fastening nut 36. In this case, the end 48 of the leg portion 42 after the final fastening is slightly separated from the floor portion 24 (adjacent to the floor portion 24).

  In any case, when the leg portion 42 abuts the end 48 thereof to the floor portion 24, the fastening height with the vertical wall portion 22 of the leg portion 42 (the axial line height of the pedestal side fastening hole 46) is And the fastening height (the axial line height of the fastening nut 36) of the vertical wall 22 with the corresponding leg 42 substantially matches the leg 42 even if the location pin 88 is not used. Can be temporarily placed at a predetermined height position. As a result, the positioning holes 84 and 80 for inserting the location pin 88, the seal member 86 for preventing the outside air intrusion, and the cap 82 become unnecessary. As a result, the cost required to manufacture these members can be reduced. Moreover, the strength reduction of the floor body 14 resulting from the said hole which the floor side positioning hole 80 becomes unnecessary can also be prevented.

  Furthermore, according to the present embodiment, the pedestal 16 can be easily positioned in the height direction simply by placing the rear end of the main body 40 on the framework member 18 and placing the leg 42 on the floor 24. . In other words, manual rough adjustment in the height direction and insertion of the location pin 88 are not necessary. As a result, the number of operation steps for fastening the leg 42 to the vertical wall portion 22 can be reduced, and the fastening process can be further simplified.

  In addition, the structure demonstrated so far is an example, and the fastening height (vertical line height of the pedestal side fastening hole 46) of the said leg part 42 with the vertical wall part 22 is the said leg part 42 of the vertical wall part 22, and. Other configurations may be changed as appropriate as long as the shape substantially matches the fastening height of (the axial height of the fastening nut 36). For example, although two legs 42 have been described above, the number of legs 42 may be one or three or more as long as the pedestal 16 can be stably supported. However, in order to maintain the stability of the pedestal 16 at the time of temporary placement, it is desirable that the number of the legs 42 be two or more.

  Further, around the vertical wall portion 22 to which the leg portion 42 is fastened is a center floor cross 29 which forms a substantially square cylinder in cooperation with the outer R / F 30, and the fastening bolt 60 is of the vertical wall portion 22. It projects into the cylinder. In such a configuration, there is an advantage that dust and moisture on the outside 110 of the vehicle are unlikely to affect the fastening nut 36 and the fastening bolt 60. Moreover, the intensity | strength of the vertical wall part 22 periphery can also be improved by setting it as square tube shape. However, if the fastening nut 36 and the fastening bolt 60 are of a material and configuration that can sufficiently withstand dust and moisture, and the peripheral portion of the vertical wall portion 22 has sufficient strength, the peripheral portion of the vertical wall portion 22 is in a square tube shape It does not have to be configured.

  Moreover, although the storage battery 10 is mounted in the lower part of the three-seat rear seat 12 in the description so far, the storage battery 10 is mounted in another seat, for example, a front passenger seat or a three-row seat car It may be disposed at the bottom of a two-seat rear seat.

10 storage battery, 12 rear seat, 13 upper rail, 14 floor body, 16 pedestal, 18 frame member, 20 mounting portion, 22 vertical wall portion, 24 floor portion, 26 floor panel, 29 center floor cross, 32 floor mat, 34 floor side fastening Holes 36 fastening nuts 40 body parts 42 legs 44 lower rails 46 pedestal side fastening holes 60 fastening bolts 62, 86 sealing members 80 floor positioning holes 82 caps 84 pedestal positioning holes 88 locations Pin, 100 cars, 110 cars outside.

Claims (1)

A seat on which an occupant sits;
A floor body that constitutes the floor of the cabin,
A storage battery mounted between the seat and the floor body;
A pedestal having a main body portion interposed between the storage battery and the seat to receive the load of the seat, and a leg portion extending downward from a front end of the main body portion;
Equipped with
The floor body is
A mounting portion on which the storage battery is mounted;
A floor portion located in front of the vehicle than the mounting portion and lower than the mounting portion;
A vertical wall connecting the mounting portion and the floor, the vertical wall being fastened to the leg;
And have
When the end of the leg is applied to the floor, the fastening height of the leg to the vertical wall substantially matches the fastening height of the vertical wall to the leg It has a shape like
An on-board structure of a storage battery characterized by

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