JP2015202697A - Electric device storage body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterproof electric device storage body.SOLUTION: An electric device storage body includes: a case 1 having upper flange parts 12 and lower flange parts 13; a lid 2 which covers the opening of the case 1; cross members 51 and 52 disposed between the upper flange parts 12 and the lower flange parts 13; bolts B1 and nuts N1 for fastening the lid 2, the cross members 51 and 52, and floor panels F together; bolts and nuts for fastening the lid 2 and the upper flange parts 12; upper seals 3 interposed between the upper flange parts 12 and the lid 2; and lower seats 4 interposed between the lower flange parts 13 and the floor panels F. The upper seals 3 have a larger elastic restoration force caused by compression than that of the lower seals 4. The upper seals 3 are compressed by the lid 2 and the upper flange parts 12, and the lower seals 4 are compressed by the lower flange parts 13 and the floor panels F.

Description

  The present invention relates to an electrical device housing that houses an electrical device.

  Electric devices such as batteries, DC-DC converters, inverters, and ECUs (Electric Control Units) are mounted on vehicles such as electric vehicles, fuel cell vehicles, and hybrid vehicles that include a motor as a power source. These electric devices are often housed in a single housing for the purpose of reducing installation space.

  For example, Patent Document 1 describes a configuration in which a storage box in which a high-voltage device is stored is stored in an under floor storage recess at the rear of the vehicle. This underfloor accommodation recess is formed by recessing a plate-like rear pan downward. And it is the structure which closes the opening of this underfloor accommodation recessed part with a rear floor in the state which accommodated the accommodation box in the underfloor accommodation recessed part.

Patent Document 2 discloses a box that is inserted into the opening of the rear floor panel from the passenger compartment side, a lid member that covers the opening of the box, and an upper seal member that closes a gap between the box and the lid member. A vehicle body rear structure including a rear floor panel (periphery of the opening) and a lower seal member that closes a gap between the box body is described.
The box body described above has a mounting flange on which the upper seal member is installed and a lower overhang portion on which the lower seal member is installed. And it is the structure which fastens a cover member and a rear floor panel with the fastening bolt which penetrates an attachment flange and a lower overhang | projection part.

International Publication No. 2013/046997 JP2013-252772A

  However, in the technique described in Patent Document 1, if water enters the passenger compartment, the water may flow through the gap between the rear floor and the underfloor storage recess, and the storage box may be immersed in water. Usually, the storage box is not sealed, and wiring and the like are drawn from the internal high-voltage device. Therefore, water may enter through the gaps in the storage box, which may cause a problem with the high-voltage system device.

  Moreover, in the technique of patent document 2, as above-mentioned, it has the structure which a fastening bolt penetrates a mounting flange and a lower overhang | projection part. Then, for example, a horizontal force acts on the mounting flange and the lower overhanging portion from the fastening bolt due to vibration associated with the traveling of the vehicle, and the mounting flange and the lower overhanging portion made of resin are bent or extended. It becomes easy. When the mounting flange and the lower overhanging portion are deformed in this way, the axial force (tightening force) of the fastening bolt is weakened, and accordingly, the compressibility of the upper seal member and the lower seal member is also reduced. As a result, there exists a problem of causing the fall of waterproofness by an upper seal member and a lower seal member.

  Then, this invention makes it a subject to provide an electrical device container with high waterproofness.

  As means for solving the above-described problems, an electrical device container according to the present invention has a box shape with an opening provided above, and a case body in which an electrical device for a vehicle is housed, and a side wall of the case body An annular first flange portion extending outward from the first flange portion, and an annular second flange portion disposed on the lower side of the first flange portion and extending outward from the side wall of the case body, and provided on the body panel A resin case that is fitted into the hole from above and the second flange portion is locked to the body panel, a lid that closes the opening, and a cross member that is sandwiched between the first flange portion and the second flange portion A first fastening member that fastens the lid, the cross member, and the body panel; a second fastening member that fastens the lid and the first flange portion; and the first frame. An annular first seal interposed between the first and second lids, and an annular second seal interposed between the second flange portion and the body panel. The elastic restoring force accompanying compression is larger than that of the second seal, the first seal is compressed by the lid and the first flange portion, and the second seal is compressed by the second flange portion and the body panel. It is characterized by that.

  According to such a configuration, the first seal is compressed by the lid and the first flange portion. Further, the first seal has a larger elastic restoring force due to compression than the second seal. By sealing the lid and the case with the first seal having a relatively high waterproof property as described above, it is possible to prevent water from entering the case and thus prevent the electric device from being defective.

  Further, the second seal is compressed by the second flange portion and the body panel. By sealing the case and the body panel with the second seal in this way, it is possible to prevent water from entering the vehicle compartment through the hole in the body panel. Since the second seal has a smaller elastic restoring force than the first seal (that is, it is flexible), the component tolerance of the body panel can be absorbed by the compression of the second seal.

Further, the lid, the cross member, and the body panel are fastened by the first fastening member. Accordingly, the case and the lid can be fixed to the body panel in a state where the case is fitted in the hole of the body panel, and the first seal and the second seal can be compressed.
Further, the lid and the first flange portion are fastened by the second fastening member. As a result, even when the first flange portion of the case made of resin is deformed (bent or extended) by vibration or the like, the state where the first seal is compressed by the lid and the first flange portion can be maintained. Therefore, it is possible to maintain the waterproofness of the first seal in a high state and reliably prevent water from entering the case.

  Further, the side wall of the case body, the first flange portion, and the second flange portion have a square frame shape in plan view, and the pair of cross members correspond to one opposite side of the square frame shape. The first fastening member is installed at a plurality of locations including both ends of the pair of cross members, and the second fastening member is installed at a location corresponding to the one opposite side and the other opposite side. Each is preferably installed.

According to such a configuration, the first fastening member is installed at a plurality of locations including both ends of the pair of cross members. Here, both ends of the pair of cross members correspond to the four corners (corner portions) of the first flange portion and the second flange portion that have a square frame shape in plan view. By installing the first fastening members at least at the four corners, the first seal and the second seal can be effectively compressed, and the waterproofness of the electrical device housing can be enhanced.
Further, the second fastening member is installed at a location corresponding to one opposite side and the other opposite side. Therefore, since the lid and the first flange portion having a square frame shape are pressed over substantially the entire circumference (square frame shape) through the first seal by the fastening of the second fastening member, the first seal The seal pressure can be secured. The second seal is naturally compressed by the weight of the electric device or the case, in addition to being compressed by fastening the first fastening member.

  Further, it is preferable that the first fastening member does not penetrate the first flange portion.

  According to such a configuration, since the first fastening member does not penetrate the first flange portion, a force from the first fastening member to the first flange portion (for example, a horizontal force due to vehicle vibration). Does not act and the first flange portion is difficult to deform. Accordingly, it is possible to suppress a decrease in the seal pressure of the first seal and the second seal.

  Further, it is preferable that the first fastening member does not penetrate the second flange portion.

  According to such a configuration, since the first fastening member does not penetrate the second flange portion, no force acts on the second flange portion from the first fastening member, and the second flange portion is not easily deformed. Become. Accordingly, it is possible to suppress a decrease in the seal pressure of the first seal and the second seal.

  A contact member that is fixed to the cross member in a state of protruding above and below the cross member, and the contact member has an upper end that is the lid when the fastening member is fastened; It is preferable that the lower end is in contact with the body panel.

  According to such a configuration, the contact member has an upper end in contact with the lid and a lower end in contact with the body panel. Therefore, the degree to which the first seal is compressed can be adjusted by the length of the contact member protruding above the cross member. Similarly, the degree to which the second seal is compressed can be adjusted by the length of the contact member projecting below the cross member. That is, by providing the contact member, the sealing performance of the first seal and the second seal can be adjusted independently.

  In addition, a frame member having a device side fastening portion fastened to the electrical device and a flange side fastening portion fastened to the first flange portion, the device side fastening portion is fastened to the electrical device, And it is preferable that the said electric device is spaced apart from the bottom face of the said case main body in the state by which the said flange side fastening part was fastened by the said 1st flange part.

  According to such a structure, an electric device is hold | maintained in the state spaced apart from the bottom face of the case main body by the frame member. Therefore, it is possible to prevent the load of the electric device from directly acting on the bottom wall of the case body made of resin. Further, the load of the electric device acts on the cross member via the frame member and the first flange portion. Therefore, even when the load of the electric device is relatively large, deformation of the first flange portion and the second flange portion made of resin can be suppressed.

  ADVANTAGE OF THE INVENTION According to this invention, a highly waterproof electrical device container can be provided.

It is the perspective view which looked down at the electric device container which concerns on one Embodiment of this invention from the left front. It is II-II arrow sectional drawing of the electric device container shown in FIG. It is the elements on larger scale of the II-II arrow sectional drawing shown in FIG. 2, (a) is the elements on larger scale of the area | region K1, (b) is the elements on larger scale of the area K2. It is the elements on larger scale of the right side volt | bolt vicinity among the IV-IV arrow directional cross-sectional views of the electrical device container shown in FIG. It is a VV arrow sectional view of the electric device container shown in FIG. It is the disassembled perspective view which looked down at the electric device container from the left front.

<Embodiment>
<Configuration of electrical device container>
An electrical device housing P shown in FIG. 1 houses an electrical device D (see FIG. 2) such as a battery, a DC / DC converter, an inverter, and an ECU, and is mounted on, for example, a hybrid vehicle. The electric device container P is fastened to the floor panel F in a state of being fitted from above into a hole H formed in a metal floor panel F (body panel).

  As shown in FIG. 2, the electric device housing P includes a case 1, a lid 2, an upper seal 3, a lower seal 4, cross members 51 and 52, collars 61 and 62, a frame member 7, and the like. And various fastening members (bolts B1, nuts N1, etc.).

(Case)
A case 1 shown in FIG. 2 includes a case main body 11, an annular upper flange portion 12 that extends outward from the side wall 11 a of the case main body 11, and an outer side from the side wall 11 a of the case main body 11 that is disposed below the upper flange portion 12. And an annular lower flange portion 13 extending in the vertical direction. The side wall 11a, the upper flange portion 12, and the lower flange portion 13 of the case body 11 have a rectangular frame shape in plan view (see FIG. 6).

  The case body 11 is a resin member having a box shape (concave shape) with an opening on the upper side, and the outer shape of the case body 11 has a rectangular parallelepiped shape. The case body 11 is configured to be able to accommodate the electric device D described above.

For example, a rectangular hole H corresponding to the shape of the side wall 11a (outer side surface) of the case body 11 is formed below the rear seat in the vehicle floor panel F (see FIG. 1). . The case main body 11 is fastened to the floor panel F in a state of being fitted in the hole H. Around the hole H, a plurality of insertion holes h1 (see FIG. 3) through which bolts B1 (see FIG. 3) described later are inserted are formed.
When the case 1 is attached to the floor panel F, the bottom wall of the case 1 and an under cover (not shown) installed below the case 1 are spaced apart in the vertical direction.

The upper flange portion 12 (flange portion, first flange portion) shown in FIG. 2 extends outward from the upper end of the side wall 11a of the case main body 11, and the vicinity of the outer edge extends upward. The upper flange portion 12 is provided in an annular shape over the entire circumference of the side wall 11a of the case body 11 (see FIG. 6).
The upper flange portion 12 is pressed (compressed) in the vertical direction by a flange 21 of the lid 2 and cross members 51 and 52 described later. Therefore, in order to ensure rigidity, the upper flange portion 12 is formed relatively thick in the vertical direction.
At the upper end of the upper flange portion 12, a seal groove 12v that is recessed downward in a longitudinal sectional view is formed over the entire circumference (see FIGS. 3 and 6). An annular upper seal 3 to be described later is installed in the seal groove 12v.

As shown in FIGS. 5 and 6, the upper flange portion 12 has a plurality of fastening portions 12 a (8 in this embodiment: see FIG. 6) for fastening a frame member 7 to be described later.
The fastening portion 12a is provided on the inner side in the front-rear direction than the above-described seal groove 12v, and is formed with a relatively large thickness in consideration of the action of the load of the electric device D. The fastening portion 12a is formed with an insertion hole h2 for inserting the bolt B2 for fixing the frame member 7 and the cylindrical collar C2 along the vertical direction. In addition, an annular groove 12w is formed in the fastening portion 12a so as to surround the head of the bolt B2 in a plan view, and an O-ring R is installed in the groove 12w.

  In addition, a plurality of insertion holes h3 (see FIGS. 4 and 6) for bolts B3 for fixing the lid 2 described later to the case 1 are formed on the upper flange portion 12 outside the seal groove 12v. The insertion hole h3 is provided with a nut N3 having a U-shape in cross section, which is a counterpart of the bolt B3.

  The lower flange portion 13 (flange portion, second flange portion) shown in FIG. 2 extends outward from the side wall 11a lower than the upper flange portion 12 in the case body 11, and is disposed on the entire circumference of the side wall 11a. It is formed in an annular shape. In other words, the upper flange portion 12, the lower flange portion 13, and the side wall 11a of the case body 11 form a concave groove v over the entire circumference of the side wall 11a. Cross members 51 and 52, to which collars 61 and 62 described later are welded, are fitted into the groove v along the left-right direction (see FIG. 6). A portion of the upper flange portion 12 corresponding to the collar 61 in the left-right direction is recessed inward in the front-rear direction so as not to interfere with the collar 61 (see FIG. 6).

  As shown in FIG. 2, the outer end portion of the lower flange portion 13 is located outside the hole H over the entire circumference, and the lower seal 4 described later is installed (adhered) on the lower surface thereof. . When the electric device container P is fitted into the floor panel F from above, the lower flange portion 13 is locked to the floor panel F, and the annular lower seal 4 is compressed in the vertical direction so as to adhere to the floor panel F. It is supposed to be.

  In the state where the electric device container P is installed on the floor panel F, the lower portion of the case 1 below the lower flange portion 13 (and the lower seal 4 described later) faces the outside of the passenger compartment, and The portion above the side flange portion 13 faces the vehicle interior.

(lid)
The lid 2 closes the opening of the case body 11 having a box shape, and is formed, for example, by pressing a metal plate. Near the edge of the lid 2, a flange 21 extending in the horizontal direction is formed over the entire circumference (see FIG. 6). A plurality of insertion holes h4 through which the bolts B1 (see FIG. 2) are inserted and a plurality of insertion holes h5 through which the bolts B3 (see FIG. 4) are inserted are formed in the flange 21.
In addition, the lid 2 is formed with a hole ht (see FIG. 6) for exposing the duct T (see FIG. 1) to the outside and a hole (not shown) for drawing out the wiring of the electric device D. .

(Upper seal)
The upper seal 3 (first seal) shown in FIG. 6 is an annular seal member installed in a seal groove 12v (upper surface of the upper flange portion 12) formed in the upper flange portion 12, and includes an upper flange portion 12 and a lid. 2 is interposed.
In order to prevent water from entering the case 1 and protect the electrical device D, the upper seal 3 is required to have higher sealing performance than the lower seal 4 described later. Therefore, it is preferable to use the upper seal 3 having a larger elastic restoring force (reaction force) due to compression than the lower seal 4. As the upper seal 3, for example, a highly waterproof rubber O-ring or gasket can be used.

  Then, a bolt B1 (see FIG. 2) that fastens the lid 2 and the floor panel F is screwed to the nut N1, whereby the upper seal 3 is compressed in the vertical direction, and the lower surface of the flange 21 of the lid 2 and the upper flange It is in close contact with the upper surface of the portion 12. Note that the upper end of the upper seal 3 is positioned above a collar 61 (see FIG. 3A) described later in an uncompressed state.

(Lower seal)
The lower seal 4 (second seal) shown in FIG. 6 is an annular seal member installed (for example, bonded) on the lower surface of the lower flange portion 13, and between the lower flange portion 13 and the floor panel F. Is intervening.
As the lower seal 4, it is preferable to use an opt sealer (foamed resin) having a smaller elastic restoring force (that is, flexible) than that of the upper seal 3, or a silicon or urethane sealer. Thus, it is possible to prevent water from entering the vehicle compartment through the hole H of the floor panel F while absorbing the component tolerance of the floor panel F and the like with the lower seal 4. In addition, the ept sealer has an advantage that it is less expensive than a rubber O-ring.

  A bolt B1 (see FIG. 2) that fastens the lid 2 and the floor panel F is screwed into the nut N1, whereby the lower seal 4 is compressed in the vertical direction, and the lower surface of the lower flange portion 13 and the floor panel are compressed. It is in close contact with the upper surface of F (near the edge of the hole H). The lower seal 4 has a lower end positioned below the collars 61 and 62 described later in a state where the lower seal 4 is not compressed.

(Cross member)
The cross member 51 shown in FIG. 2 is a metal member sandwiched between the upper flange portion 12 and the lower flange portion 13 and extends in the left-right direction. As described above, the upper flange portion 12 and the lower flange portion 13 have a rectangular frame shape in plan view (see FIG. 6). The cross members 51 and 52 are installed at locations corresponding to one opposite side (the opposite side along the left-right direction) of the square frame shape described above. That is, as shown in FIG. 6, one cross member 51 is fitted from the front side of the case 1, and the other cross member 52 is fitted from the rear side of the case 1.

  In the present embodiment, no cross member is installed at a location along the front-rear direction of the case 1. Therefore, it is preferable to increase the rigidity by providing a plurality of reinforcing ribs (not shown) protruding outward from the side wall 11a of the case 1 at the location. For example, the rib extends in the vertical direction from the upper flange portion 12 to the lower flange portion 13.

  The cross member 51 shown in FIG. 3A is formed, for example, by welding the ends of metal plates 51a and 51b having a C-shape in a longitudinal sectional view, and the cross section has a square frame shape. . The cross member 51 has a vertical width substantially equal to the distance between the upper flange portion 12 and the lower flange portion 13. The same applies to the other cross member 52 shown in FIG.

  One cross member 51 is formed with a plurality of holes h6 for installing a collar 61 described later. A plurality of holes h7 for installing the collar 62 are formed in the lower metal plate 52b of the other cross member 52 shown in FIG. 3B, and the bolt B1 is inserted through the upper metal plate 52a. A plurality of insertion holes h8 are formed (see FIG. 6). Note that one of the region K2 and the region K1 shown in FIG. 2 may have the same configuration as the other.

  As shown in FIGS. 5 and 6, the upper metal plate 52a has a plurality of insertion holes h9 through which the bolts B2 are inserted. Further, a nut N2 which is a counterpart of the bolt B2 is welded in advance to a portion corresponding to the insertion hole h9 on the lower surface of the upper metal plate 52a.

(Color)
A collar 61 (contact member) shown in FIG. 3A is a metal member having a cylindrical shape, and is welded to the cross member 51 while penetrating the cross member 51. In a state in which the collar 61 is welded to the cross member 51 extending in the left-right direction, the collar 61 extends in the up-down direction (see FIG. 6). Further, in the state where the bolt B <b> 1 is fastened, the upper end of the collar 61 is in contact with the lower surface of the flange 21 of the lid 2, and the lower end of the collar 61 is in contact with the upper surface of the floor panel F.

  Since the collar 61 is fixed (welded) to the cross member 51, the degree to which the upper seal 3 is compressed can be adjusted by the length of the collar 61 protruding upward from the cross member 51. That is, the upper end of the collar 61 is positioned slightly above the upper end of the upper flange portion 12, and the upper seal 3 is appropriately compressed by bringing the lid 2 into contact with the collar 61. . The length of the collar 61 protruding upward from the cross member 51 is set in consideration of the material of the upper seal 3 and the required sealing performance.

  Similarly, the degree to which the lower seal 4 is compressed can be adjusted by the length of the collar 61 protruding downward from the cross member 51. The lower end of the collar 61 is positioned a predetermined distance below the lower flange portion 13, and the lower seal 4 is appropriately compressed by bringing the collar 61 into contact with the floor panel F. Yes. The length of the collar 61 protruding downward from the cross member 51 is set in consideration of the material of the lower seal 4 and the required sealing performance.

  The collar 62 (contact member) shown in FIG. 3B is the same as the collar 61 welded to the cross member 51 except that only the lower metal plate 52b is penetrated. The upper end of the collar 62 is in contact with the lower surface of the upper metal plate 52a, and the lower end thereof is in contact with the upper surface of the floor panel F. The degree to which the lower seal 4 is compressed can be adjusted by the length of the collar 62 protruding downward from the cross member 52.

(Frame member)
The frame member 7 shown in FIG. 5 is a metal member for holding the electric device D (for example, a battery pack) in a state of being hung on the upper flange portion 12 of the case 1. The frame member 7 has a device side fastening portion 71 fastened to the electric device D and a flange side fastening portion 72 fastened to the upper flange portion 12. The device side fastening portion 71 extends in the up-down direction, and the flange side fastening portion 72 extends forward (or rearward) from the upper end of the device side fastening portion 71 toward the upper flange portion 12.

The front-side device-side fastening portion 71 is fastened to the front surface of the electric device D using bolts B4 and nuts N4 (the same applies to the rear-side device-side fastening portion 71).
The flange-side fastening portion 72 is fastened to the upper flange portion 12 with the tip thereof being in contact with the upper surface of the upper flange portion 12. An insertion hole h <b> 10 through which the bolt B <b> 2 is inserted is formed near the tip of the flange side fastening portion 72. The flange side fastening portion 72 is fastened to the upper flange portion 12 and the cross members 51 and 52 by the bolt B2 and the nut N2 welded to the inner wall surface (ceiling surface) of the cross members 51 and 52.

  A cylindrical collar C2 is installed in the insertion hole h2 provided in the fastening portion 12a of the upper flange portion 12, and the bolt B2 is inserted through the collar C2. By installing the collar C2 extending in the vertical direction in this way, the rigidity of the portion where the load of the electric device D acts can be increased.

As shown in FIG. 5, in this embodiment, the pair of frame members 7, 7 are fixed to the electric device D so as to be substantially symmetrical in the front-rear direction, and are fastened with each frame member 7 hung on the upper flange portion 12. I tried to do it. In practice, a plurality of pairs of frame members 7 are installed along the left-right direction.
In a state where the device side fastening portion 71 is fastened to the electrical device D and the flange side fastening portion 72 is fastened to the upper flange portion 12, the electrical device D is separated from the bottom surface of the case body 11.

(First fastening member)
A bolt B1 and a nut N1 (first fastening member) shown in FIG. 2 fasten the lid 2, the cross members 51 and 52, and the floor panel F. The bolt B <b> 1 passes through the collar 61 welded to the cross member 51, and the lower end of the shaft portion projects below the floor panel F. A nut N1 is screwed into a portion of the shaft portion of the bolt B1 that protrudes below the floor panel F. Note that the nut N1 may be welded to the lower surface of the floor panel F in advance.

  In the example shown in FIG. 6, the collar 61 is welded at four locations including both ends of the cross member 51, and the bolt B <b> 1 is inserted through the collar 61. Similarly, a collar 62 is welded to four locations including both ends of the cross member 52, and the bolt B <b> 1 is inserted through the collar 62. As shown in FIG. 6, among the flanges 21 having a square frame shape in plan view, the bolts B1 are installed at the four corners (corner portions) through holes h4, so that the upper seal 3 and the lower seal 4 are all attached. It can compress effectively over the circumference.

  That is, the upper seal 3 is pressed (compressed) in the vertical direction by the upper flange portion 12 and the lid 2 by fastening the bolt B1 and the nut N1, and the lower seal 4 is moved in the vertical direction by the lower flange portion 13 and the floor panel F. Pressed (compressed). As a result, the vibration associated with the traveling of the vehicle is absorbed by the upper seal 3 and the lower seal 4, so that the backlash and vibration of the case 1 can be suppressed.

  As shown in FIG. 2, the bolt B <b> 1 is disposed outside the upper flange portion 12 and the lower flange portion 13. That is, since the bolt B1 does not penetrate the upper flange portion 12 and the lower flange portion 13, a horizontal force is applied to the upper flange portion 12 and the lower flange portion 13 from the bolt B1 (and the collars 61 and 62). Will not work. Therefore, deformation (deflection / extension) of the upper flange portion 12 and the lower flange portion 13 can be suppressed, and the thickness in the vertical direction can be maintained. Therefore, a decrease in the axial force (tightening force) of the bolt B1 can be suppressed, and consequently a decrease in the seal pressure of the upper seal 3 and the lower seal 4 can be suppressed.

(Second fastening member)
A bolt B3 and a nut N3 (second fastening member) shown in FIG. 4 fasten the lid 2 and the upper flange portion 12. As described above, the nut N3 is installed in the insertion hole h3 of the upper flange portion 12 having a square frame shape in plan view (see FIG. 6). The nut N3 is integrated with the upper flange portion 12 by injection molding or the like. On the inner wall surface of the nut N3, a thread groove corresponding to the shaft portion of the bolt B3 is formed.

  As shown in FIG. 6, a plurality of bolts B <b> 3 and nuts N <b> 3 are provided on one side of the upper flange portion 12 that extends along the left-right direction (three on the front side and the rear side) and extend along the front-rear direction. A plurality of devices are installed on the other side (two locations on the right and left sides).

  By fastening the bolt B3 and the nut N3, the lid 2 and the upper flange portion 12 having a square frame shape are pressed over the substantially entire circumference (square frame shape) via the upper seal 3. Therefore, even if one or both of the upper flange portion 12 and the lower flange portion 13 are somewhat deformed, it is possible to maintain a state in which the seal pressure of the upper seal 3 is sufficiently ensured.

<Effect>
In the electrical device housing P according to the present embodiment, the upper seal 3 is compressed in the vertical direction by screwing the bolt B1 and the nut N1, and the collar 61 contacts the lid 2. Therefore, the extent to which the upper seal 3 is compressed can be adjusted by the length of the collar 61 protruding upward from the cross member 51. Further, by using a highly waterproof rubber O-ring or the like as the upper seal 3, it is possible to reliably prevent water from entering the case 1.

  Similarly, the lower seal 4 is compressed in the vertical direction by fastening the bolt B1, and the collars 61 and 62 abut against the floor panel F. Therefore, the degree to which the lower seal 4 is compressed can be adjusted by the length of the collars 61 and 62 protruding downward from the cross members 51 and 52. In addition, by using a highly elastic ept sealer or the like as the lower seal 4, water permeates into the vehicle compartment through the hole H of the floor panel F while absorbing the component tolerance of the floor panel F with the lower seal 4. Can be prevented.

  Thus, according to the present embodiment, the upper seal 3 and the lower seal 4 are compressed with respect to the upper seal 3 having a high required seal performance and the lower seal 4 having a relatively low required seal performance. The degree can be adjusted independently. Therefore, the electrical device container P fitted into the hole H of the floor panel F can be appropriately waterproofed.

  Further, as described above, since the bolt B1 does not penetrate the upper flange portion 12 and the lower flange portion 13, deformation of the upper flange portion 12 and the lower flange portion 13 due to vibration can be suppressed. Accordingly, it is possible to suppress a decrease in the sealing pressure of the upper seal 3 and the lower seal 4 and prevent water from entering the case 1 or the vehicle interior.

Further, the lid 2 and the upper flange portion 12 are fastened by the bolt B3 and the nut N3. Accordingly, even if one or both of the upper flange portion 12 and the lower flange portion 13 are deformed, the upper seal 3 can be maintained in a compressed state by the lid 2 and the upper flange portion 12. Therefore, it is possible to maintain the waterproof property of the upper seal 3 in a high state and reliably prevent water from entering the case 1.
The lower seal 4 is naturally compressed by gravity acting on the electric device D and the like, in addition to being compressed as the bolt B1 and the nut N1 are fastened.

  Since the cross members 51 and 52 are interposed between the upper flange portion 12 and the lower flange portion 13, the load of the electric device D acts on the cross members 51 and 52 via the frame member 7 and the upper flange portion 12. To do. In this way, the electric device D having a relatively large load can be appropriately supported by the cross members 51 and 52 having high rigidity. Furthermore, since the cross members 51 and 52 extend in the left-right direction (vehicle width direction), the impact can be absorbed by the cross members 51 and 52 when a side collision occurs.

  Further, by supporting the electric device D with the cross members 51 and 52 having high rigidity, the bolts B1 and B2 and the nuts N1 and N2 (see FIGS. 2 and 5) fastened through the cross members 51 and 52 are fastened. The score can be reduced. Further, by screwing the bolt B1 into the nut N1, the electric device housing P can be fixed to the floor panel F and the upper seal 3 and the lower seal 4 can be compressed together. Therefore, according to this embodiment, the assembly work of the electric device container P can be simplified.

  Moreover, since the electric device D is supported using the frame member 7 and the cross members 51 and 52, even if the resin case 1 is used, the strength does not fall. As a result, the case 1 can be easily molded, and the electric device D can be reduced in weight and cost.

≪Modification≫
As mentioned above, although the electric device container P according to the present invention has been described in the above embodiment, the present invention is not limited to these descriptions, and various modifications can be made.

  For example, in the embodiment, the collar 61 welded to one cross member 51 (see FIG. 2) protrudes above and below the cross member 51, and the collar 62 welded to the other cross member 52 is the cross member 51. Although the configuration protruding only downward has been described, the present invention is not limited to this. That is, it may be configured to include a collar (not shown) that is welded to a cross member (not shown) and protrudes only upward from the cross member. The degree to which the upper seal 3 is compressed can be adjusted by the length of the collar protruding upward from the cross member.

  Moreover, in the said embodiment, although the lower seal 4 was installed (adhered) in the lower surface of the lower flange part 13, the case where the electric device container P was fitted in the hole H of the floor panel F was demonstrated, Not limited to. For example, the lower seal 4 may be installed (adhered) around the hole H, and the electric device container P (excluding the lower seal 4) may be fitted into the hole H. Even in this case, the lower seal 4 is compressed by the lower flange portion 13 and the floor panel F as in the above embodiment.

  Moreover, although the said embodiment demonstrated the case where the lid | cover 2 and the floor panel F were fastened with volt | bolt B1 and nut N1 (fastening member), it is not restricted to this. For example, the lid 2 and the upper flange portion 12 may be fastened by a fastening member (not shown), and the lower flange portion 13 and the floor panel F may be fastened by another fastening member (not shown). .

  Moreover, although the said embodiment demonstrated the case where the side wall of the case main body 11, the upper side flange part 12, and the lower side flange part 13 exhibit square frame shape in planar view (refer FIG. 6), it is not restricted to this. That is, the shape of the side wall and the like of the case body 11 may be changed as appropriate according to the layout of the vehicle.

  Moreover, although the said embodiment demonstrated the structure by which the collar 61 was welded to the cross member 51 and the collar 62 was welded to the cross member 52 (refer FIG. 2), it is not restricted to this. That is, the collars 61 and 62 may be omitted, and only the bolt B1 may pass through the cross members 51 and 52. Even in this case, the lid 2, the cross members 51 and 52, and the floor panel F can be fastened by the bolt B1 and the nut N1.

  Moreover, although the said embodiment demonstrated the structure which installs volt | bolt B1 outside the upper side flange part 12 and the lower side flange part 13 (refer FIG. 2), it is not restricted to this. That is, the bolt B <b> 1 may be configured to penetrate one or both of the upper flange portion 12 and the lower flange portion 13. In such a configuration, even if the upper flange portion 12 and the lower flange portion 13 are deformed by a horizontal force acting from the bolt B1, the bolt B3 and the nut N3 (see FIG. 4) are fastened. The seal pressure of the upper seal 3 does not decrease. Further, the sealing pressure of the lower seal 4 is secured by the gravity acting on the electric device D and the like.

  Moreover, although the said embodiment demonstrated the case where the electrical device container P was mounted in a hybrid vehicle, it is not restricted to this. For example, it may be installed in other types of vehicles such as electric vehicles and fuel cell vehicles, and may be installed not only in four-wheeled vehicles but also in two-wheeled vehicles and three-wheeled vehicles.

P Electrical device container 1 Case 11 Case body 11a Side wall 12 Upper flange portion (flange portion, first flange portion)
13 Lower flange (flange, second flange)
2 Lid 3 Upper seal (first seal)
4 Lower seal (second seal)
51, 52 Cross member 61, 62 Color (contact member)
7 Frame member 71 Device side fastening part 72 Flange side fastening part B1 Bolt (fastening member)
N1 nut (fastening member)
D Electrical device F Floor panel (Body panel)
H hole

Claims (6)

A case main body that has a box shape with an opening formed therein and accommodates an electric device for a vehicle, an annular first flange portion that extends outward from a side wall of the case main body, and a lower side of the first flange portion An annular second flange portion that is disposed and extends outward from the side wall of the case body, and is fitted from above into a hole provided in the body panel, and the second flange portion is locked to the body panel. A resin case,
A lid that closes the opening;
A cross member sandwiched between the first flange portion and the second flange portion;
A first fastening member that fastens the lid, the cross member, and the body panel;
A second fastening member for fastening the lid and the first flange portion;
An annular first seal interposed between the first flange portion and the lid;
An annular second seal interposed between the second flange portion and the body panel;
The first seal has a larger elastic restoring force due to compression than the second seal,
The electrical device container, wherein the first seal is compressed by the lid and the first flange portion, and the second seal is compressed by the second flange portion and the body panel. The side wall of the case body, the first flange portion, and the second flange portion have a rectangular frame shape in plan view,
The pair of cross members are installed at locations corresponding to one side of the square frame shape,
The first fastening member is installed at a plurality of locations including both ends of the pair of cross members,
The electric device container according to claim 1, wherein the second fastening member is installed at a position corresponding to the one opposite side and the other opposite side. The electric device container according to claim 1, wherein the first fastening member does not penetrate the first flange portion. The electric device container according to any one of claims 1 to 3, wherein the first fastening member does not penetrate the second flange portion. An abutting member fixed to the cross member in a state protruding above and below the cross member;
The contact member is
The upper end of the first fastening member is in contact with the lid, and the lower end of the first fastening member is in contact with the body panel. The electrical device container as described. A frame member having a device side fastening portion fastened to the electric device and a flange side fastening portion fastened to the first flange portion;
In the state where the device side fastening portion is fastened to the electrical device and the flange side fastening portion is fastened to the first flange portion, the electrical device is separated from the bottom surface of the case body. The electrical device container according to any one of claims 1 to 5.

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