JP5811943B2 - Case for in-vehicle electrical equipment - Google Patents

Case for in-vehicle electrical equipment Download PDF

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JP5811943B2
JP5811943B2 JP2012106634A JP2012106634A JP5811943B2 JP 5811943 B2 JP5811943 B2 JP 5811943B2 JP 2012106634 A JP2012106634 A JP 2012106634A JP 2012106634 A JP2012106634 A JP 2012106634A JP 5811943 B2 JP5811943 B2 JP 5811943B2
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vehicle
fixing
fixed
case
rib
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JP2013233839A (en
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誠 西前
誠 西前
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株式会社デンソー
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Description

  The present invention relates to a case for an in-vehicle electric device for housing the in-vehicle electric device and fixing it to a vehicle body.

  2. Description of the Related Art Conventionally, a case for an in-vehicle electric device for accommodating an in-vehicle electric device such as an inverter and fixing it to a vehicle is known. As a structure for fixing the in-vehicle electric device case to a vehicle, for example, a structure using a fixing portion protruding from a case wall portion is known (see Patent Document 1 below).

  For example, a female screw part is formed in the fixing part. A fixed portion (plate-like member) attached to the vehicle body is overlaid on the fixed portion. A through hole is provided in the fixed portion. The through hole and the female screw part are aligned, a bolt is inserted into the through hole, and the female screw part is screwed. In this way, the on-vehicle electrical device case is firmly fixed to the vehicle body.

JP 2009-154757 A

However, the case for in-vehicle electrical equipment may be damaged when a traffic accident or the like occurs due to a large load due to the following mechanism. That is, when a traveling vehicle collides with another object due to a traffic accident or the like, the in-vehicle electric device case that houses the in-vehicle electric device keeps moving due to inertia, but the fixed portion is fixed to the vehicle body. Therefore, a large stress is likely to occur around the fixed part (near the base). It is conceivable that the periphery of the fixed part is damaged by this large stress. Also, in the event of a traffic accident, other parts mounted on the vehicle collide with the in-vehicle electrical device case, causing a large stress around the fixed part due to the impact caused by this. It is possible to do.
If the on-vehicle electric device case is damaged, the high-voltage portion of the accommodated on-vehicle electric device may be exposed. Therefore, there is a demand for a case for an in-vehicle electric device that is not easily damaged even when subjected to a large impact due to a traffic accident or the like.

  The present invention has been made in view of such a background, and an object of the present invention is to provide a case for an in-vehicle electric device that is not easily damaged even when subjected to a large impact.

A first aspect of the present invention is a case for housing an in-vehicle electric device,
With multiple walls,
The inside of the plurality of wall portions serves as a housing space for housing the in-vehicle electric device,
At least a part of the plurality of wall portions is a vehicle fixing wall portion having a fixing portion for fixing to the vehicle,
The fixing portion protrudes from the vehicle fixing wall portion to the outside of the case in the thickness direction of the vehicle fixing wall portion,
The vehicle fixed wall portion has a rib for reinforcing the periphery of the fixed portion,
The rib is connected to the fixed part ,
The fixing portion is formed with a female screw portion that is open at an end surface of the fixing portion, the axis of the female screw portion is parallel to the protruding direction of the fixing portion, and a male screw is screwed into the female screw portion. In addition, the in-vehicle electric device case is configured to fix the in-vehicle electric device case to the vehicle by the male screw (claim 1).
A second aspect of the present invention is a case for housing an in-vehicle electric device,
With multiple walls,
The inside of the plurality of wall portions serves as a housing space for housing the in-vehicle electric device,
At least a part of the plurality of wall portions is a vehicle fixing wall portion having a fixing portion for fixing to the vehicle,
The fixing portion protrudes from the vehicle fixing wall portion to the outside of the case in the thickness direction of the vehicle fixing wall portion,
The vehicle fixed wall portion has a rib for reinforcing the periphery of the fixed portion,
The rib is connected to the fixed part,
The plurality of wall portions include the vehicle fixing wall portion and a non-vehicle fixing wall portion in which the fixing portion is not formed, and the thickness of the vehicle fixing wall portion in the rib is the non-vehicle fixing wall. It is in the case for vehicle-mounted electrical equipment characterized by being thicker than the thickness of the thinnest part of the part (Claim 2).
A third aspect of the present invention is a case for housing an in-vehicle electric device,
With multiple walls,
The inside of the plurality of wall portions serves as a housing space for housing the in-vehicle electric device,
At least a part of the plurality of wall portions is a vehicle fixing wall portion having a fixing portion for fixing to the vehicle,
The fixing portion protrudes from the vehicle fixing wall portion to the outside of the case in the thickness direction of the vehicle fixing wall portion,
The vehicle fixed wall portion has a rib for reinforcing the periphery of the fixed portion,
The rib is connected to the fixed part,
The vehicle fixing wall portion includes a plurality of the fixing portions, and at least two fixing portions of the plurality of fixing portions are connected fixing portions connected to each other by the ribs,
The said rib which connects the said connection fixing | fixed part exists in the case for vehicle-mounted electrical equipment characterized by the composite cyclic | annular rib which mutually arranged the several cyclic | annular rib and connected them.

In the on-vehicle electric device case, a rib is formed on a wall portion (vehicle fixing wall portion) provided with a fixing portion. This rib is connected to the fixed portion.
Therefore, the periphery (the vicinity of the root) of the fixed portion in the vehicle fixed wall portion can be sufficiently reinforced by the rib. Therefore, even if a large impact occurs due to a traffic accident and a large stress is generated around the fixed portion of the vehicle fixed wall portion, this portion can be prevented from being damaged, and the in-vehicle electric device case can be prevented from being damaged. Can do.

  As described above, according to this example, it is possible to provide a case for an in-vehicle electric device that is not easily damaged even when subjected to a large impact.

The side view of the case for vehicle-mounted electrical equipment in Example 1. FIG. The II arrow line view of FIG. III-III sectional drawing of FIG. IV-IV sectional drawing of FIG. VV sectional drawing of FIG. The front view of the case for vehicle-mounted electrical equipment in the state attached to the vehicle in Example 1. FIG. The manufacturing method explanatory drawing of the case for vehicle-mounted electrical equipment in Example 1. FIG. The side view of the case for vehicle-mounted electrical equipment which made the recessed part the square shape in Example 1. FIG. The side view of the case for vehicle-mounted electrical equipment which made the recessed part the triangle shape in Example 1. FIG.

  The in-vehicle electric device housed in the in-vehicle electric device case can be a power conversion device for use in an electric vehicle or a hybrid vehicle.

Further, the fixing portion is formed with a female screw portion opened at an end face of the fixing portion, and the axis of the female screw portion is parallel to the protruding direction of the fixing portion, and the male screw portion is connected to the female screw portion. There screwed by male screws, the case for the vehicle-mounted electric equipment that is configured to secure to the vehicle (claim 1, claim 4).
Therefore, since the male screw is screwed into the female screw portion of the fixing portion from the protruding direction, the fixing portion is reinforced by the male screw, and the fixing portion is not easily broken even when an impact is applied from the direction orthogonal to the protruding direction. Become. Therefore, the fixed portion does not break when subjected to an impact, and stress is easily applied around the fixed portion. Therefore, the effect when the rib is formed and the periphery of the fixed portion is reinforced is great.

The plurality of wall portions include the vehicle fixed wall portion and a non-vehicle fixed wall portion in which the fixed portion is not formed, and the thickness of the vehicle fixed wall portion in the rib is the non-vehicle stationary wall portion, have a thickness than the thickness of the thinnest portion (claim 2, claim 5).
Therefore, since the thickness of the vehicle fixing wall portion in the rib can be increased, the periphery of the fixing portion can be firmly reinforced.

Further, the vehicle fixing wall portion is provided with a plurality of the fixed part, at least two fixed portions of the fixed portion of the plurality of has a connecting and fixing part connected to each other by the rib (claim 3) .
For this reason , since the plurality of fixing portions (connection fixing portions) are connected to each other by the ribs, the region between the plurality of connection fixing portions in the vehicle fixing wall portion can be reinforced by the ribs. Therefore, by providing the plurality of connecting and fixing portions at positions separated from each other, the entire vehicle fixing wall portion can be reinforced, and damage to the vehicle fixing wall portion can be more effectively prevented.

Further, the rib which connects the connecting fixing portion, Ru composite annular rib der connected to each other adjacently arranging a plurality of annular ribs (claim 3).
For this reason , it is possible to effectively prevent damage to the on-vehicle electrical device case and to reduce the weight. That is, since the composite annular rib can easily increase the area, a wide range of the vehicle fixing wall portion can be reinforced. Therefore, the case for in-vehicle electric equipment is less likely to be damaged when subjected to an impact. The composite annular rib is formed by connecting a plurality of annular ribs whose center is recessed, and has a plurality of recesses. Therefore, the case for on-vehicle electrical equipment can be reduced in weight.

Further, the vehicle fixing wall portion includes a plurality of the fixing portions, and a flange portion for attaching a lid is formed at an opening portion of the on-vehicle electric device case, and at least one of the plurality of fixing portions is formed. The fixing portion is a flange connection fixing portion connected to the flange portion, and it is preferable that the flange portion also serves as the rib for reinforcing the periphery of the flange connection fixing portion. .
In this case, since the flange portion also serves as a rib, there is no need to provide a rib dedicated to reinforcing the vehicle fixing wall portion. Therefore, it becomes easier to reduce the weight of the on-vehicle electrical device case.

(Example 1)
The Example which concerns on the said vehicle-mounted electrical equipment case is described using FIGS.
As shown in FIGS. 1 and 2, the on-vehicle electric device case 1 of this example includes a plurality of wall portions 2. The inside of the plurality of wall portions 2 serves as a housing space for housing the in-vehicle electric device.
One wall portion 2 among the plurality of wall portions 2 is a vehicle fixing wall portion 2a having a fixing portion 3 for fixing to the vehicle.
The fixed portion 3 protrudes from the vehicle fixed wall portion 2a to the outside of the case in the plate thickness direction (Z direction) of the vehicle fixed wall portion 2a.
The vehicle fixing wall portion 2 a has ribs 4 for reinforcing the periphery of the fixing portion 3.
The rib 4 is connected to the fixed portion 3.

  The in-vehicle electric device housed in the in-vehicle electric device case 1 of this example is a power conversion device for use in an electric vehicle or a hybrid vehicle. This power converter is configured by stacking a plurality of semiconductor modules (not shown) and a cooling pipe. As shown in FIGS. 1 and 2, an introduction pipe 14 a for introducing the refrigerant into the cooling pipe and a lead-out pipe 14 b for leading the refrigerant from the cooling pipe protrude from the on-vehicle electric device case 1.

  The on-vehicle electric device case 1 of this example includes five wall portions 2. Of the five wall portions 2, one wall portion 2 is the vehicle fixed wall portion 2a, and the other four wall portions 2 are non-vehicle fixed wall portions 2b in which the fixed portion 3 is not formed. The non-vehicle fixing wall 2b includes a pipe protruding wall 21 from which the introduction pipe 14a and the outlet pipe 14b protrude, a battery fixing wall 22 for fixing the battery 18 (see FIG. 6), a connector 16, 17 (see FIG. 6) and a connector connecting wall portion 23 for connecting 17 and another device adjacent wall portion 24 adjacent to another electronic device.

  A lid 13 is attached to the opening 100 of the in-vehicle electric device case 1. The case 1 for in-vehicle electric equipment includes a flange portion 40 that protrudes to the outside of the case at the opening 100. The lid side flange portion 130 of the lid 13 is overlaid on the flange portion 40, and the lid 13 is fixed to the flange portion 40 using bolts 19.

  Further, as shown in FIG. 1, the vehicle fixing wall portion 2a is provided with four fixing portions 3 (3a to 3d). Of these four fixed portions 3, the first fixed portion 3a and the second fixed portion 3b are respectively provided at both ends of the vehicle fixed wall portion 2b in the protruding direction (Y direction) of the introduction pipe 14a. The second fixing portion 3 b is located between the flange portion 40 and the connector connection wall portion 23 in the thickness direction (X direction) of the flange portion 40. The first fixing portion 3a is provided at a position close to the flange portion 40 in the X direction.

  The third fixing portion 3c is provided in the vicinity of the connector connection wall portion 23 in the X direction. The fourth fixing portion 3d is connected to the flange portion 40. The 4th fixing | fixed part 3d is located in the center of the vehicle fixed wall part 2a in the Y direction.

  Thus, the vehicle fixing wall 2b can be fixed to the vehicle body in a balanced manner by providing the four fixing portions 3 at positions separated from each other.

  Of the four fixing parts 3, three fixing parts 3 (first fixing part 3 a, second fixing part 3 b, third fixing part 3 c) are connected fixing parts 30 connected to each other by the ribs 4. Yes. The ribs 4 that connect the connecting and fixing portions 30 to each other are composite annular ribs 4a in which annular ribs 41 are adjacently connected to each other. A recess 410 is formed in the center of the annular rib 41. The recess 410 is formed in a circular shape.

  In addition, one of the four fixing portions 3 is a flange connection fixing portion 31 connected to the flange portion 40, one fixing portion 3 (fourth fixing portion 3 d). The flange portion 40 also serves as the rib 4 for reinforcing the flange connection fixing portion 31.

  As shown in FIG. 1, when viewed from the Z direction, the first fixing portion 3a and the second fixing portion 3b are elongated in the X direction, and the third fixing portion 3c and the fourth fixing portion 3d are circular. Presents. The first fixing portion 3a and the second fixing portion 3b are formed with alignment protrusions 15 for alignment with a fixed portion 5 (see FIG. 6) described later.

  Further, as shown in FIG. 2, a female screw portion 11 is formed in the fixing portion 3. The axis A of the female screw portion 11 is parallel to the Z direction. The end surfaces 300 of the four fixed portions 3 are flush with each other.

  As shown in FIG. 6, in this example, the on-vehicle electric device case 1 is fixed to a plate-like fixed portion 5. The fixed portion 5 is attached to the vehicle body and has a plurality of through holes 50. The through holes 50 are formed at positions corresponding to the four female screw portions 11 respectively. Further, the fixed portion 5 is formed with a concave portion 150 with which the alignment projection 15 is engaged.

  When fixing the on-vehicle electric device case 1, the fixed portion 5 is overlapped with the end surface 300 of the fixing portion 3, and the protrusion 15 is engaged with the concave portion 150. If it does in this way, female screw part 11 of fixed part 3 and penetration hole 50 of fixed part 5 will be aligned. In this state, the male screw portion 12 is inserted into the through hole 50 and screwed into the female screw portion 11. As a result, the on-vehicle electric device case 1 is fixed to the fixed portion 5.

  The on-vehicle electric device case 1 is arranged on the upper side in the gravity direction with respect to the fixed portion 5. The vehicle travels in a direction orthogonal to the Z direction (gravity direction). Therefore, when a traffic accident or the like occurs, the impact is applied to the in-vehicle electric device case 1 from a direction orthogonal to the Z direction. Further, as described above, the male screw 12 is inserted in the center of the fixed portion 3 from the Z direction. Therefore, the fixing portion 3 is reinforced by the male screw 12, and the fixing portion 3 is not easily folded even if an impact is applied from a direction orthogonal to the Z direction.

  In addition, as shown in FIG. 6, two connectors of a high voltage connector 16 and a low voltage connector 17 are attached to the connector connection wall portion 23. A battery fixing part 220 is formed on the battery fixing wall part 22. The battery 18 is fixed to the battery fixing part 220.

  On the other hand, as shown in FIGS. 3 and 4, the thickness x1 (the distance from the inner wall surface 310 to the end surface 300 in the Z direction) of the vehicle fixing wall portion 2a in the fixing portion 3 is Thicker than thickness x2. The thickness x2 is thicker than the thickness x3 of the thinnest portion of the non-vehicle fixed wall 2b. Further, the thickness x4 of the thinnest portion of the vehicle fixed wall portion 2a is substantially the same as the thickness x4 of the thinnest portion of the non-vehicle fixed wall portion 2b.

  Further, the thickness x3 of the thinnest portion is substantially the same in each of the pipe protruding wall portion 21, the battery fixing wall portion 22, the connector connection wall portion 23, and the other device adjacent wall portion 24.

  Further, as shown in FIGS. 3 and 4, a round-shaped portion 320 is formed at the base of the fixed portion 3. The rounded portion 320 relieves stress applied to the base of the fixed portion 3 and makes it difficult to damage the fixed portion 3. Similarly, a round portion 330 is formed at the base of the rib 4.

  On the other hand, as shown in FIG. 1, the vehicle fixed wall portion 2 a includes a region where the rib 4 is formed and a region where the rib 4 is not formed (rib non-formation region 45). In this example, three rib non-formation regions 45 (45a to 45c) are provided. The first rib non-formation region 45a is formed in a portion of the vehicle fixing wall 2a on the pipe protruding wall 21 side in the Y direction and on the connector connecting wall 23 side in the X direction. Further, the second rib non-formation region 45b is formed at a portion of the vehicle fixing wall portion 2a on the other device adjacent wall portion 24 side in the Y direction and on the connector connection wall portion 23 side in the X direction. The third rib non-formation region 45c is formed at a portion of the vehicle fixed wall 2a on the side of the other equipment adjacent wall 24 in the Y direction and on the flange 40 in the X direction.

  An inclined rib 49 is formed between the first rib non-formation region 45a and the second rib non-formation region 45b. As shown in FIG. 2, the inclined rib 49 is formed in an inclined shape so that the thickness in the Z direction gradually decreases toward the connector connection wall 23 side in the X direction.

  Further, as shown in FIG. 1, about half of the flange connection fixing portion 31 on the connector connection wall portion 23 side in the X direction faces the third rib non-forming region 45c. The flange connection fixing portion 31 is not connected to the composite annular rib 4a. In addition, about half of the flange connection fixing portion 31 on the lid 13 side is connected to the flange portion 40.

  The flange portion 40 is not connected to the composite annular rib 4a. A gap 48 is formed between the flange portion 40 and the composite annular rib 4a. The thickness of the gap 48 in the Z direction is substantially the same as the thickness of the non-rib region 45 in the Z direction.

  Further, as described above, the rib 4 that connects the connecting and fixing portions 30 (the first fixing portion 3a, the second fixing portion 3b, and the third fixing portion 3c) is a composite annular rib that connects a plurality of annular ribs 41 to each other. 4a. The concave portion 410 formed in the center of the annular rib 41 is circular, and the diameter of the concave portion 410 is substantially equal to the diameters of the third fixing portion 3c and the fourth fixing portion 4d.

  As shown in FIG. 1, three ribs 411, 412 and 413 constituting the composite annular rib 4a are connected to the first fixing portion 3a. The second fixing portion 3b is almost entirely surrounded by the composite annular rib 4a. Three ribs 414, 415, and 416 constituting the composite annular rib 4a are connected to the third fixing portion 3b.

  In addition, two support recesses 46 are formed in the vehicle fixed wall portion 2a. Similarly, two supporting recesses 46 are formed in the battery fixing wall portion 22 (see FIG. 2). When carrying the case 1 for vehicle-mounted electrical equipment, a pin-shaped jig | tool (not shown) is inserted in these four recessed parts 46 for support. The jig 1 is used to carry the case 1 for in-vehicle electric equipment. Further, in order to facilitate the insertion of the jig into the support recess 46, the rib 4 is not formed around the support recess 46.

  The manufacturing method of the case 1 for vehicle-mounted electrical equipment of this example is demonstrated. In this example, the on-vehicle electric device case 1 is manufactured by casting aluminum. As shown in FIG. 7, a plurality of molds 6 (6a, 6b) are combined, and aluminum melted by heating is poured into a gap 60 between these molds 6a, 6b. And after cooling and solidifying aluminum, the casting_mold | template 6 is removed and the case 1 for vehicle-mounted electrical equipment is obtained. A metal protrusion 61 is attached to the mold 6 at a position corresponding to the concave portion 410 (see FIG. 1) of the composite annular rib 4a. The protrusions 61 form the recesses 410. When the casting process is repeated, the ridge 61 is worn, and therefore, when the ridge 61 is worn, the ridge 61 is replaced.

The effect of this example will be described. In this example, as shown in FIG. 1, the rib 4 is formed in the vehicle fixed wall part 2a. The rib 4 is connected to the fixed portion 3.
Therefore, the periphery (the vicinity of the root) of the fixed portion 3 in the vehicle fixed wall portion 2 a can be sufficiently reinforced by the rib 4. Therefore, even if the on-vehicle electric device case 1 receives a large impact due to a traffic accident or the like and a large stress is generated around the fixing portion 3 in the vehicle fixing wall portion 2a, this portion can be prevented from being damaged. Damage to the device case 1 can be prevented.

As shown in FIGS. 2 and 6, the fixing portion 3 is formed with a female screw portion 11 that opens to the end surface 300. The axis A of the female screw portion 11 is parallel to the protruding direction (Z direction) of the fixed portion 3. Then, a male screw 12 is screwed into the female screw portion 11, and the on-vehicle electric device case 1 is fixed to the vehicle by the male screw 12.
In this case, since the male screw 12 is screwed into the fixing portion 3 from the Z direction, the fixing portion 3 is reinforced by the male screw 12, and the fixing portion 3 is not easily broken even if an impact is applied from the direction orthogonal to the Z direction. Become. Therefore, the fixed portion 3 does not break when receiving an impact, and stress is easily applied to the periphery of the fixed portion 3. Therefore, the effect when the rib 4 is formed and the periphery of the fixed part 3 is reinforced is great.

Further, as shown in FIG. 4, the thickness x2 of the vehicle fixing wall 2a in the rib 4 is thicker than the thickness x3 of the thinnest portion of the non-vehicle fixing wall 2b.
If it does in this way, since thickness x2 of vehicle fixed wall part 2a in rib 4 can be made thick, the circumference of fixed part 3 can be strengthened firmly.

Further, as shown in FIG. 1, three fixing portions 3 (3 a to 3 c) of the four fixing portions 3 are connected fixing portions 30 connected to each other by the ribs 4.
If it does in this way, since the some connection fixing | fixed part 30 is mutually connected by the rib 4, the area | region between the some connection fixing | fixed part 30 in the vehicle fixing wall part 2a can be reinforced with the rib 4. FIG. Therefore, by providing the plurality of connection fixing portions 30 at positions separated from each other, the entire vehicle fixing wall portion 2a can be reinforced, and damage to the vehicle fixing wall portion 2a can be more effectively prevented.

Moreover, as shown in FIG. 1, the rib 4 which connects the connection fixing | fixed part 30 is the composite annular rib 4a which arrange | positioned the some annular rib 41 adjacently and connected mutually.
If it does in this way, while being able to prevent damage to case 1 for in-vehicle electric equipment effectively, it can be reduced in weight. That is, since the composite annular rib 41 can easily increase the area, the wide range of the vehicle fixing wall portion 2a can be reinforced. Therefore, the case 1 for in-vehicle electric equipment is less likely to be damaged. The composite annular rib 4a is formed by connecting a plurality of annular ribs 41 having a recessed center, and has a plurality of recesses 410. Therefore, the case 1 for vehicle-mounted electrical equipment can be reduced in weight.

Further, as shown in FIG. 1, one of the four fixing portions 3 is one fixing portion 3 (fourth fixing portion 3 d) which is a flange connection fixing portion 31 connected to the flange portion 40. The flange portion 40 also serves as the rib 4 for reinforcing the periphery of the flange connection fixing portion 31.
If it does in this way, since the flange part 40 serves as the rib 4, it becomes unnecessary to provide the rib 4 only for reinforcement of the vehicle fixed wall part 2a. Therefore, it becomes easier to reduce the weight of the in-vehicle electrical device case 1. Moreover, since it can prevent that the area of the composite annular rib 4a increases too much, when manufacturing the case 1 for vehicle-mounted electrical equipment, the burden added to the protrusion part 61 (refer FIG. 7) can be reduced.

  Further, as shown in FIG. 1, in this example, the rib 4 is not formed on the entire surface of the vehicle fixing wall portion 2a, but a portion where stress is not generated much when an impact is applied is not formed on the rib 4 This is a region 45. If it does in this way, it can prevent that the area of the rib 4 increases too much. Therefore, when manufacturing the case 1 for vehicle-mounted electrical equipment, it becomes possible to reduce the burden of the casting_mold | template 6 (refer FIG. 7) and the protrusion part 61. FIG.

  Moreover, as shown in FIG. 1, in this example, the recessed part 410 is circular. That is, the protrusion 61 (see FIG. 7) is formed in a columnar shape. When the casting process is repeated, the protrusion 61 is worn. However, if the protrusion 61 is formed in a columnar shape, the wear is relatively small.

  As described above, according to this example, it is possible to provide a case for an in-vehicle electric device that is not easily damaged even when subjected to a large impact.

  In this example, the rib 4 is formed on the vehicle fixing wall portion 2a so as to protrude toward the outside of the case in the Z direction, but may be formed so as to protrude toward the inside of the case. In this example, the inner wall surface 310 (see FIG. 3) is also included in the fixing portion 3. That is, the rib 4 may be formed so as to protrude to the inside of the case, and the rib 4 may be connected to the fixed portion 3 on the inner wall surface 310.

  Further, in this example, as shown in FIG. 1, the concave portion 410 is formed in a circular shape, but it can be formed in an arbitrary shape such as a quadrangular shape (see FIG. 8) or a triangular shape (see FIG. 9).

  Further, in this example, as shown in FIG. 1, all the fixing portions 3 (3 a to 3 d) are connected to the ribs 4, but the fixing portions 3 that are not connected to the ribs 4 may be provided.

DESCRIPTION OF SYMBOLS 1 Case for in-vehicle electric equipment 10 In-vehicle electric equipment 2 Wall part 2a Vehicle fixed wall part 3 Fixed part 4 Rib

Claims (6)

  1. A case for housing the in-vehicle electrical device (10),
    Comprising a plurality of walls (2),
    The inside of the plurality of wall portions (2) serves as a housing space for housing the on-vehicle electric device (10),
    At least a part of the plurality of wall portions (2) (2) is a vehicle fixing wall portion (2a) having a fixing portion (3) for fixing to the vehicle,
    The fixed portion (3) protrudes from the vehicle fixed wall portion (2a) to the outside of the case in the thickness direction of the vehicle fixed wall portion (2a),
    The vehicle fixed wall portion (2a) has a rib (4) for reinforcing the periphery of the fixed portion (3),
    The rib (4) is connected to the fixing part (3) ,
    The fixing portion (3) is formed with a female screw portion (11) opened at the end face of the fixing portion (3), and the axis of the female screw portion (11) is projected from the fixing portion (3). The male screw (12) is screwed into the female screw portion (11), and the on-vehicle electric device case (1) is fixed to the vehicle by the male screw (12). An in-vehicle electric device case (1) characterized in that
  2.   A case for housing the in-vehicle electrical device (10),
      Comprising a plurality of walls (2),
      The inside of the plurality of wall portions (2) serves as a housing space for housing the on-vehicle electric device (10),
      At least a part of the plurality of wall portions (2) (2) is a vehicle fixing wall portion (2a) having a fixing portion (3) for fixing to the vehicle,
      The fixed portion (3) protrudes from the vehicle fixed wall portion (2a) to the outside of the case in the thickness direction of the vehicle fixed wall portion (2a),
      The vehicle fixed wall portion (2a) has a rib (4) for reinforcing the periphery of the fixed portion (3),
      The rib (4) is connected to the fixing part (3),
      The plurality of wall portions (2) include a vehicle fixing wall portion (2a) and a non-vehicle fixing wall portion (2b) in which the fixing portion (3) is not formed, and the rib (4) The on-vehicle electric device case (1), wherein the vehicle fixing wall (2a) is thicker than the thinnest part of the non-vehicle fixing wall (2b).
  3.   A case for housing the in-vehicle electrical device (10),
      Comprising a plurality of walls (2),
      The inside of the plurality of wall portions (2) serves as a housing space for housing the on-vehicle electric device (10),
      At least a part of the plurality of wall portions (2) (2) is a vehicle fixing wall portion (2a) having a fixing portion (3) for fixing to the vehicle,
      The fixed portion (3) protrudes from the vehicle fixed wall portion (2a) to the outside of the case in the thickness direction of the vehicle fixed wall portion (2a),
      The vehicle fixed wall portion (2a) has a rib (4) for reinforcing the periphery of the fixed portion (3),
      The rib (4) is connected to the fixing part (3),
      The vehicle fixing wall portion (2a) includes a plurality of fixing portions (3), and at least two fixing portions (3) of the plurality of fixing portions (3) are connected to each other by the rib (4). It becomes the connection fixed part (30),
      The case for in-vehicle electrical equipment, wherein the rib (4) for connecting the connection fixing portion (30) is a composite annular rib (4a) in which a plurality of annular ribs (41) are arranged adjacent to each other and connected to each other. (1).
  4.   The in-vehicle electric device case (1) according to claim 3, wherein the fixing portion (3) is formed with a female screw portion (11) opened at an end face of the fixing portion (3). The axis of the screw part (11) is parallel to the protruding direction of the fixed part (3), and the male screw (12) is screwed into the female screw part (11). An in-vehicle electric equipment case (1), characterized in that the electric equipment case (1) is fixed to the vehicle.
  5.   The in-vehicle electric device case (1) according to any one of claims 1, 3, and 4, wherein the plurality of wall portions (2) include the vehicle fixing wall portion (2a), There is a non-vehicle fixed wall portion (2b) in which the fixed portion (3) is not formed, and the thickness of the vehicle fixed wall portion (2a) in the rib (4) is equal to the non-vehicle fixed wall portion (2b). ), A case (1) for in-vehicle electric equipment characterized by being thicker than the thickness of the thinnest part.
  6.   The in-vehicle electric device case (1) according to any one of claims 1 to 5, wherein the vehicle fixing wall portion (2a) includes a plurality of the fixing portions (3), and the in-vehicle electric device case ( A flange portion (40) for attaching the lid (13) is formed in the opening portion (100) of 1), and at least one fixing portion (3) among the plurality of fixing portions (3) The flange connection fixing portion (31) is connected to the flange portion (40), and the flange portion (40) also serves as the rib (4) for reinforcing the periphery of the flange connection fixing portion (31). An in-vehicle electric device case (1) characterized in that
JP2012106634A 2012-05-08 2012-05-08 Case for in-vehicle electrical equipment Active JP5811943B2 (en)

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US10264695B2 (en) * 2014-09-25 2019-04-16 Hitachi Automotive Systems, Ltd. Power converter
JP6679825B2 (en) * 2014-10-14 2020-04-15 日産自動車株式会社 In-vehicle electronic unit case

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JP2009286326A (en) * 2008-05-30 2009-12-10 Toyota Motor Corp Vibration reducing apparatus for storage case of electric devices
JP4697311B2 (en) * 2009-01-20 2011-06-08 株式会社デンソー In-vehicle electronic control unit housing

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