JP2016119202A - Electric device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric device which inhibits rattling of a refrigerant duct having a split structure and reduces noise caused by the rattling.SOLUTION: An electric device D includes: a high voltage battery 32; a frame member 31 holding the high voltage battery 32; and an air intake duct 37 disposed between the high voltage battery 32 and a side cover 70 of the frame member 31. The air intake duct 37 has: a first air intake duct member 91 positioned at the high voltage battery 32 side; and a second air intake duct member 92 positioned at the side cover 70 side. The first air intake duct member 91 and the second air intake duct member 92 are engaged with each other to be assembled at their peripheries. The high voltage battery 32 and the side cover 70 sandwich the first air intake duct member 91 and the second air intake duct member 92 while applying a pressing force thereto.SELECTED DRAWING: Figure 8

Description

  The present invention relates to an electric device in which a battery is held by a frame member.

  A hybrid vehicle or an electric vehicle is equipped with a battery as a drive source for the electric motor. The battery generates heat during use, and the efficiency decreases when the temperature exceeds a predetermined temperature. Therefore, it is necessary to cool the battery.

  Patent Document 1 discloses a cooling structure for an automobile battery in which a cooling duct is attached to the battery. By the way, the cooling duct may have a divided structure in terms of moldability and the like.

JP 2009-101996 A

  Normally, when the cooling duct has a split structure, it is possible to prevent rattling by welding the split elements and suppress the generation of noise caused by the rattling, but the welding process becomes complicated and manufacturing man-hours and costs May increase.

  An object of the present invention is to provide an electric device that can suppress the play of a refrigerant duct having a divided structure and reduce noise due to the play with a simple configuration.

In order to achieve the above object, the invention described in claim 1
A battery (for example, a high voltage battery 32 in an embodiment described later);
A frame member for holding the battery (for example, a frame member 31 in an embodiment described later);
A refrigerant duct (for example, an intake duct 37 in an embodiment described later) disposed between the battery and a wall portion of the frame member (for example, a side cover 70 in an embodiment described later). A device (for example, an electric device D in an embodiment described later),
The refrigerant duct includes a first refrigerant duct member located on the battery side (for example, a first intake duct member 91 in an embodiment described later) and a second refrigerant duct member located on the wall side (for example, described later). A second air intake duct member 92) in the embodiment of
The first refrigerant duct member and the second refrigerant duct member are engaged and assembled at the periphery, and are sandwiched between the battery and the wall portion with a pressing force applied.

The invention according to claim 2 is the invention according to claim 1,
A plurality of ribs (for example, ribs 75 in the embodiments described later) extending to the opposite side of the refrigerant duct are formed on the wall portion.

In the invention according to claim 3, in the invention according to claim 1 or 2,
The first refrigerant duct member is formed with an inner rib that extends toward the second refrigerant duct member and abuts against the second refrigerant duct member in a state in which a pressing force is applied thereto, or the second refrigerant duct member The duct member is formed with an inner rib (for example, an inner rib 95 in an embodiment to be described later) that contacts the first refrigerant duct member in a state in which a pressing force is applied to the duct member. The

In the invention according to claim 4, in the invention according to claim 3,
The rib and the inner rib extend in a direction orthogonal to each other.

  According to the first aspect of the present invention, the refrigerant duct assembled by the first refrigerant duct member and the second refrigerant duct member engaging with each other around the periphery is sandwiched by the pressing force between the battery and the wall portion. In addition, rattling can be prevented, and noise caused by rattling can be reduced. Thereby, since integration processing, such as welding, can be omitted, manufacture of a refrigerant duct can be simplified.

  According to the second aspect of the present invention, since the plurality of ribs extending on the opposite side to the refrigerant duct are formed on the wall portion, the wall portion can be prevented from warping and the refrigerant duct can be pressed uniformly.

  According to invention of Claim 3, since an inner rib is formed in a refrigerant | coolant duct, the noise by contact | abutting of an inner rib can be prevented, improving the rigidity of a refrigerant | coolant duct.

  According to the fourth aspect of the present invention, since the rib and the inner rib extend in a direction perpendicular to each other, the rigidity of the electric device can be increased.

It is a perspective view which shows the center console arrange | positioned between the front seat of the vehicle which concerns on one Embodiment of this invention, and a front seat. It is a top view of a center console. FIG. 3 is a partial cross-sectional view taken along line AA in FIG. 2. It is a whole perspective view of the electric device accommodated in a center console. It is a disassembled perspective view of the electric device accommodated in a center console. It is a figure which shows the side cover seen from the outer side. It is a figure which shows the side cover seen from the inner side. It is CC sectional view taken on the line of FIG. It is the whole intake duct perspective view.

Hereinafter, a vehicle according to an embodiment of the present invention will be described with reference to the drawings. It should be noted that the drawings are viewed in the direction of the reference numerals, and in the following description, front, rear, left and right, and top and bottom are in accordance with the direction seen from the driver, and the front of the vehicle is Fr, rear is Rr, left is L, and right is R, upper is shown as U, and lower is shown as D.
1 is a perspective view showing a center console disposed between a front seat and a front seat of a vehicle according to an embodiment of the present invention, FIG. 2 is a plan view of the center console, and FIG. It is a fragmentary sectional view of a console.

  As shown in FIGS. 1 to 3, in the vehicle 10 according to the present embodiment, a center console 30 is disposed on a center tunnel 12 formed in a floor panel 11, and an electric device D is built in the center console 30. An exhaust pipe 20 having one end connected to an internal combustion engine (not shown) extends in the front-rear direction in the center tunnel 12 (below the center tunnel 12). In FIG. 3, reference numeral 16 </ b> M is a central cross member that reinforces the center tunnel 12.

<Center console>
The center console 30 is disposed between the left front seat 14L and the right front seat 14R, and is provided with an upper surface provided with a cup holder 52, a shift knob 51, a tray 53 capable of accommodating small items, an occupant's armrest 54, and the like in order from the front. An internal space is covered with a cover 55. A cover member 57 provided with an intake grill 56 is attached to the rear end of the exterior cover 55. The intake grill 56 takes in the air in the passenger compartment 87 as cooling air for the electric device D when a cooling fan 36 described later operates.

<Electrical device>
Next, the electric device D housed in the center console 30 will be described in detail with reference to FIGS. 4 is an overall perspective view of the electric device D, and FIG. 5 is an exploded perspective view of the electric device D.
The electric device D includes a high voltage battery 32, an ECU 41, and a high voltage system device 35. The high voltage battery 32, the ECU 41, and the high voltage system device 35 are supported by the frame member 31 to be unitized. Yes. The frame member 31 has a rectangular parallelepiped shape, and includes an upper frame member 31U, a lower frame member 31D, and an intermediate frame member 31M that connects the upper frame member 31U and the lower frame member 31D, a front cover member 31F, and a left cover. It is configured by being surrounded by the member 31L, the right cover member 31R, and the rear cover member 31B. In the following description, the left cover member 31L and the right cover member 31R may be collectively referred to as a side cover 70.

  The high voltage battery 32, the ECU 41, and the high voltage system device 35 are arranged in this order from the rear of the vehicle. The high-voltage equipment 35 includes a junction box 33 attached to the front surface of the intermediate frame member 31M, and a converter (PCU) 34 that is disposed in front of the junction box 33 and converts the voltage of the high-voltage battery 32. The The ECU 41 described above is attached to the rear surface of the intermediate frame member 31M. The converter (PCU) 34 includes a DC-DC converter 42 and an inverter 44. In the space formed between the front cover member 31F and the junction box 33, the DC-DC converter 42 and the inverter 44 are arranged on the left and right. Has been placed.

  An intake duct 37 is attached to the left side surface of the high-voltage battery 32 with the left cover member 31L, and an exhaust duct 38 is attached to the right side surface with the right cover member 31R. A cell voltage sensor (CVS) 46 is covered with a CVS cover 45 and fixed to the lower surface of the lower frame member 31D. The electric device D is fixed to the center tunnel 12 by bolting the lower frame member 31 </ b> D to the center tunnel 12. A cooling fan 36 is attached to the front surface of the front cover member 31F, and air taken from the intake grill 56 of the center console 30 by the cooling fan 36 passes through the intake duct 37 → the high pressure battery 32 → the exhaust duct 38. Then, the air is sucked into the cooling fan 36 from the exhaust duct 38 through the cooling passage 39 formed between the DC-DC converter 42 and the inverter 44, and is exhausted from the cooling fan 36 to the exhaust passage 80F. The exhaust flow path 80F is a flow path for exhausting the cooling air discharged from the cooling fan 36 into the vehicle interior 87 through the side trim. However, the exhaust flow path 80F is not directly related to the present invention. Description is omitted.

<Side cover>
Next, the side cover 70 will be described in detail with reference to FIGS. 6 is a view showing the side cover 70 viewed from the outside, FIG. 7 is a view showing the side cover 70 viewed from the inside, and FIG. 8 is a cross-sectional view taken along the line CC in FIG.
The side cover 70 has a double structure composed of an inner cover 71 disposed on the high-voltage battery side and an outer cover 72 that covers the outer side of the inner cover. The inner cover 71 and the outer cover 72 are: Welded.

  The inner cover 71 is formed, for example, by press-molding a metal rectangular thin plate. The outer cover 72 is formed, for example, by press-molding a rectangular thin plate made of metal, and has a wavy cross section in which a convex portion 73 and a flat portion 74 are continuously formed when viewed from the vertical direction. The flat portion 74 of the outer cover 72 is in contact with the inner cover 71 and is called three welding points P (hereinafter referred to as an upper welding point P1, a central welding point P2, and a lower welding point P3 in order from the top). ) Spot welding. Therefore, the side cover 70 is formed by connecting a plurality of upper welding points P1 arranged in the front-rear direction and an upper welding line L1 that is an imaginary line, and a plurality of center welding points P2 arranged in the front-rear direction. The central weld line L2 that is a virtual line and the lower weld lines L3 that are virtual lines formed by connecting a plurality of lower weld points P3 arranged in the front-rear direction are formed in three rows in the vertical direction.

  The inner cover 71 is a portion facing the convex portion 73 of the outer cover 72, and a plurality of ribs 75 are provided between the upper weld line L1 and the lower weld line L3. More specifically, the rib 75 includes an upper rib 75A and a lower rib 75B extending in the vertical direction. The upper rib 75A is provided between the upper weld line L1 and the center weld line L2, and the lower rib 75B. Is provided between the center weld line L2 and the lower weld line L3. Further, in terms of the relationship with the welding points P1 to P3, the upper rib 75A is positioned so as to be offset in the front-rear direction between the upper welding point P1 and the central welding point P2, and the lower rib 75B is the central welding point. The ribs 75 and the welding points P are arranged in a staggered manner by being positioned so as to be offset in the front-rear direction between P2 and the lower welding point P3.

  That is, in the inner cover 71, a plurality of upper ribs 75A and lower ribs 75B are arranged in a rectangular non-rib forming region 77 in the front-rear direction and the vertical direction. Further, the upper rib 75 </ b> A and the lower rib 75 </ b> B protrude from the high voltage battery 32, that is, toward the outer cover 72. As shown in FIG. 8, the protruding height H <b> 1 of these ribs 75 is lower than the height H <b> 2 of the convex portion 73 of the outer cover 72, and a space is formed between the rib 75 and the convex portion 73. Has been. Therefore, the rib 75 is arrange | positioned in the convex part 73 in a non-contact state.

  As shown in FIG. 4, the side cover 70 configured as described above includes an upper frame member 31 </ b> U and a lower portion through a plurality of fastening holes formed at the upper end portion and the lower end portion of the outer cover 72 via bolts 88 and nuts 89. Fastened to the frame member 31D.

<Intake duct>
Next, the intake duct 37 will be described with reference to FIGS. FIG. 9 is an overall perspective view of the intake duct 37.
As described above, the intake duct 37 (see FIG. 4) is attached to the left side surface of the high voltage battery 32 in the center console 30 between the left cover member 31L. The intake duct 37 has a two-part configuration of a first intake duct member 91 located on the high voltage battery 32 side and a second intake duct member 92 located on the left cover member 31L side, and each has a substantially L-shape when viewed from above. The first air intake duct member 91 and the second air intake duct member 92 having the above are assembled by engaging a plurality of engaging portions 94 formed on the peripheral mating surface 93.

  An air intake duct 37 composed of a first air intake duct member 91 and a second air intake duct member 92 is formed in a substantially L shape in a top view as a whole, and an air intake portion 66 disposed at the rear portion facing the cover member 57. And a wind guide portion 67 disposed on the left side surface of the high-voltage battery 32. In the intake section 66 and the air guide section 67, flow paths 66f and 67f are formed inside by two thin plates facing each other of the first intake duct member 91 and the second intake duct member 92. An opening 63 that opens toward the intake grill 56 provided in the cover member 57 is provided in the upper half portion of the intake portion 66, and a plurality of (main) In the embodiment, four communication holes 67a are arranged in parallel. A plurality of (four in this embodiment) inner ribs 95 extending from the second intake duct member 92 to the first intake duct member 91 are formed between the communication holes 67a adjacent in the front-rear direction so as to extend in the front-rear direction. Yes.

  The first intake duct member 91 and the second intake duct member 92 assembled by being engaged by the surrounding engaging portion 94 are applied by the high voltage battery 32 and the left cover member 31L in a state where a pressing force is applied. It is pinched. That is, the first intake duct member 91 contacts the high-voltage battery 32, and the second intake duct member 92 contacts the non-rib forming region 77 of the inner cover 71 constituting the left cover member 31L. Accordingly, the state in which the plurality of inner ribs 95 extending from the second intake duct member 92 to the first intake duct member 91 is in contact with the first intake duct member 91 by the pressing force is maintained.

  In the electric device D configured as described above, the air taken in from the intake grill 56 is formed in the air guide section 67 through the flow path 66f formed in the intake section 66 from the opening 63 of the intake duct 37. It is guided to the flow path 67f. The cooling air guided to the flow path 67f is supplied to the high voltage battery 32 from the communication hole 67a, cools the high voltage battery 32, and then flows to the exhaust duct 38.

  As described above, the intake duct 37 assembled by the first intake duct member 91 and the second intake duct member 92 being engaged with each other around the periphery is sandwiched by the pressing force between the high voltage battery 32 and the side cover 70. Therefore, rattling can be prevented, thereby reducing noise caused by rattling. Further, since the intake duct 37 is clamped by the pressing force between the high voltage battery 32 and the side cover 70, the first intake duct member 91 and the second intake duct member 92 need only be engaged with each other and assembled. Etc. can be omitted. Further, since it is possible to omit an integration process such as welding of the inner rib 95 of the second air intake duct member 92 and the first air intake duct member 91 which is originally necessary for preventing rattling, the manufacture of the air intake duct 37 is possible. Can be simplified.

  Further, the side cover 70 that presses the second intake duct member 92 is formed with a plurality of ribs 75 extending on the opposite side of the second intake duct member 92, so that the side cover 70 can be prevented from warping, and the second intake air can be prevented. The duct member 92 can be pressed uniformly.

  Further, since the inner rib 95 extending toward the first intake duct member 91 is formed in the second intake duct member 92, noise due to the contact of the inner rib 95 can be prevented while increasing the rigidity of the refrigerant duct. Furthermore, since the ribs 75 extend in the vertical direction while the inner ribs 95 extend in the front-rear direction, they are orthogonal to each other, and the rigidity of the electric device D can be increased.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably.

  In the above embodiment, the side cover 70 has a double structure including the inner cover 71 disposed on the high-voltage battery side and the outer cover 72 that covers the outer side of the inner cover 71, but is not limited thereto. The inner cover 71 alone or the outer cover 72 alone may be used.

  In the above embodiment, the inner rib 95 extending toward the first intake duct member 91 is formed on the second intake duct member 92. However, the present invention is not limited to this, and the second intake duct member 92 side is not limited to this. An inner rib 95 may be formed.

  Moreover, in the said embodiment, although the electric device D was unitized because the high voltage battery 32, ECU41, and the high voltage | pressure apparatus 35 were hold | maintained with the frame member 31, it is not restricted to this, At least high voltage battery It is only necessary that 32 is held by the frame member 31.

  In the above embodiment, the intake duct 37 is illustrated as the refrigerant duct, and the detailed description of the exhaust duct 38 is omitted. However, as in the intake duct 37 or only the exhaust duct 38 is divided into two parts, You may comprise so that the two division | segmentation element assembled | attached by engaging may be clamped by the pressing force of the high voltage battery 32 and the side cover 70. FIG.

32 High voltage battery (battery)
31 Frame member 37 Intake duct 70 Side cover 75 Rib 91 First intake duct member 92 Second intake duct member 95 Inner rib D Electric device

Claims (4)

Battery,
A frame member for holding the battery;
A refrigerant duct disposed between the battery and a wall of the frame member, and an electrical device comprising:
The refrigerant duct has a first refrigerant duct member located on the battery side, and a second refrigerant duct member located on the wall side,
The electric device in which the first refrigerant duct member and the second refrigerant duct member are engaged and assembled at the periphery, and are sandwiched between the battery and the wall portion with a pressing force applied. The electrical device according to claim 1,
An electrical device in which a plurality of ribs extending on a side opposite to the refrigerant duct are formed on the wall portion. An electrical device according to claim 2,
The first refrigerant duct member is formed with an inner rib that extends toward the second refrigerant duct member and abuts against the second refrigerant duct member in a state in which a pressing force is applied thereto, or the second refrigerant duct member The electrical device, wherein the duct member is formed with an inner rib that contacts the first refrigerant duct member in a state in which the duct member extends toward the first refrigerant duct member and is given a pressing force. An electrical device according to claim 3,
The electrical device, wherein the rib and the inner rib extend in a direction orthogonal to each other.

Images