JP6679825B2 - In-vehicle electronic unit case - Google Patents

Description

  TECHNICAL FIELD The present invention relates to an on-vehicle electronic unit case that houses an on-vehicle electronic unit and includes a unit case attached to a vehicle.

  Conventionally, an in-vehicle electronic unit in which the thickness of a side plate of a unit case for accommodating an in-vehicle electronic unit having a circuit board or the like is changed from the middle to make a mounting side of a vehicle thin and a side for accommodating an in-vehicle electronic unit thick A case for use is known (for example, refer to Patent Document 1).

JP, 2010-167816, A

  Here, in the case of a vehicle-mounted electronic unit of the related art, when the vehicle collides, the side plate of the unit case is stored in the unit case by damaging only the thin part and making it difficult for the damage to reach the thick part. Protects the in-vehicle electronic unit. However, if the thin-walled portion is damaged, water such as rain or radiator liquid may enter the inside of the unit case from the damaged portion, which may cause a malfunction of the vehicle-mounted electronic unit.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle-mounted electronic unit case capable of preventing damage to the unit case housing the vehicle-mounted electronic unit in the event of a vehicle collision.

In order to achieve the above-mentioned object, a case for an on-vehicle electronic unit of the present invention includes a unit case that is attached to a vehicle and has a plurality of side plates that surround a unit storage space for storing the on-vehicle electronic unit, and the unit case is At least one side plate among the plurality of side plates is a side plate against collision. And this collision response side plate has a 1st load input plate part, a 2nd load input plate part, a 1st rising plate part, a 2nd rising plate part, and a load receiving plate part.
The first load input plate portion and the second load input plate portion are opposed to each other in the load input direction at the time of collision, and are arranged on both sides thereof with a space therebetween.
The first rising plate portion is erected from the end portion of the first load input plate portion on the side of the spacing portion toward the load input direction.
The second rising plate portion is erected from the end of the second load input plate portion on the side of the spacing portion toward the load input direction, and faces the first rising plate portion.
The load receiving plate portion connects the leading end of the first rising plate portion and the leading end of the second rising plate portion, and faces the load input direction.

Therefore, in the case for an on-vehicle electronic unit of the present invention, at least one side plate of the unit case is opposed to the load input direction at the time of collision, and the first and second load input plate portions are arranged with a gap therebetween, A first rising plate portion standing in the load input direction from the first load input plate portion, a second rising plate portion standing in the load input direction from the second load input plate portion, and first and second rising plate portions. And a load receiving plate portion that is connected to the tip ends of the load receiving plate portion and faces the load input direction.
Therefore, when a load is input to the vehicle at the time of a collision, the input load is first input to the load receiving plate portion, and the load receiving plate portion is deformed toward the inside of the unit case. Here, the load receiving plate portion is supported by the first and second rising plate portions, and the distance from the load input position to the support position is greater than that in the case where the input load is received on the entire surface of the side plate for collision of the unit case, for example. Can be shortened. Therefore, the amount of deformation of the load receiving plate portion can be suppressed.
Further, the load input from the load receiving plate portion is divided into approximately two equal parts and transmitted to each of the first and second load input plate portions via the first and second rising plate portions. Therefore, for example, compared with the case where an input load is received on the entire surface of the collision response side plate, the load input to each load input plate portion can be dispersed, and the deformation amount of the first and second load input plate portions can be suppressed. You can
Further, since the first and second load input plate parts are arranged on both sides of the space part with a gap therebetween, at least one of the first load input plate part and the second load input plate part receives a load. The dimension from the end on the side of the interval portion to the other end supported by the other adjacent side plate can be half or less of the overall length of the collision response side plate. As a result, for example, the distance from the supporting position of the first and second load input plate portions to the load input position becomes shorter than that in the case where the entire surface of the collision response side plate receives the input load, and the first and second load input The amount of deformation of the plate portion can be suppressed.
Since the load input to the unit case can be dispersed and the deformation of the load receiving plate portion and the first and second load input plate portions can be suppressed, even if a load input occurs in the unit case during a vehicle collision, It is possible to prevent damage to the unit case.

1 is a perspective view schematically showing a vehicle to which a vehicle-mounted electronic unit case of Example 1 is applied. FIG. 3 is a perspective view showing a vehicle-mounted electronic unit case of the first embodiment. FIG. 3 is a plan view showing a side plate against collision of the on-vehicle electronic unit case of the first embodiment. FIG. 4A is a plan view showing a collision-handling side plate of a vehicle-mounted electronic unit case of a comparative example, and FIG. 4B is a description showing a deformed state when a load is input to the collision-handling side plate shown in FIG. 4A. It is a figure. FIG. 6 is an explanatory diagram showing a deformed state when a load is input to the collision response side plate of the vehicle electronic unit case of the first embodiment. It is a perspective view which shows the case for vehicle-mounted electronic units of Example 2. FIG. 7 is a plan view showing a side plate against collision of the on-vehicle electronic unit case according to the second embodiment. FIG. 8 is an explanatory diagram showing a deformed state when a load is input to the collision-supporting side plate of the vehicle electronic unit case of the second embodiment. It is a top view which shows the inside of the vehicle-mounted electronic unit case of Example 3. It is a principal part perspective view which shows the other example of the case for vehicle-mounted electronic units of this invention. (a), (b) is a principal part perspective view which shows another example of the vehicle-mounted electronic unit case of this invention.

  Hereinafter, a mode for carrying out a vehicle-mounted electronic unit case of the present invention will be described based on Examples 1 to 3 shown in the drawings.

(Example 1)
FIG. 1 is a perspective view schematically showing a vehicle to which the vehicle-mounted electronic unit case of the first embodiment is applied. FIG. 2 is a perspective view showing the vehicle electronic unit case of the first embodiment. FIG. 3 is a plan view showing a collision-response side plate of the vehicle-mounted electronic unit case of the first embodiment. The configuration of the on-vehicle electronic unit case of the first embodiment will be described below with reference to FIGS. 1 to 3.

The in-vehicle electronic unit case 1 of the first embodiment is a case for incorporating the in-vehicle electronic unit U mounted in the vehicle S shown in FIG. 1 and protecting the in-vehicle electronic unit U from moisture and dust. The on-vehicle electronic unit case 1 is arranged at the rear of the vehicle S, as shown in FIG.
Here, the vehicle-mounted electronic unit U includes, for example, a control circuit board on which a sensor such as an acceleration sensor, a microcomputer, and a memory are mounted, a switching circuit unit such as a DC / DC converter and an inverter, and a component such as a battery and the like outside the case and an electrical component. In-vehicle parts that are connected together.

  As shown in FIG. 2, the on-vehicle electronic unit case 1 includes a unit case 2 and a cover 3.

  The unit case 2 is a so-called bottomed housing that is open above the vehicle, and has a bottom plate 21 and a plurality of side plates 22 to 25.

  The bottom plate 21 is a plate member that faces the lower side of the vehicle, and the vehicle-mounted electronic unit U (see FIG. 1) is mounted thereon.

The plurality of side plates 22 to 25 are plate members standing upright from the peripheral edge of the bottom plate 21 toward the vehicle upper side, respectively. The front side plate 22 standing upright from the front end of the bottom plate 21 and facing the front of the vehicle, and the left end of the bottom plate 21. Left plate 23 standing upright from the left side of the vehicle, facing the left side of the vehicle, right side plate 24 standing upright from the right end of the bottom plate 21 facing right of the vehicle, and rear side plate standing upright from the rear end of the bottom plate 21 facing the rear of the vehicle. 25 and. The left end portion of the front side plate 22 is joined to the left side plate 23, and the right end portion is joined to the right side plate 24. The left end of the rear plate 25 is joined to the left plate 23, and the right end is joined to the right plate 24.
Then, the bottom plate 21, the front side plate 22, the left side plate 23, the right side plate 24, and the rear side plate 25, which are a plurality of side plates, form a unit storage space 26 for storing the vehicle-mounted electronic unit U (see FIG. 1). That is, the vehicle-mounted electronic unit U is surrounded by the plurality of side plates (front side plate 22, left side plate 23, right side plate 24, rear side plate 25). The unit storage space 26 has an opening 27 that faces the bottom plate 21 and opens upward of the vehicle.
Further, each of the left side plate 23 and the right side plate 24 is formed with a plurality of flanges 28 protruding laterally of the vehicle. Each flange 28 is formed with a through hole 28a through which a screw (not shown) for fixing the unit case 2 to the vehicle penetrates.

  The cover 3 is a plate member that covers the opening 27 of the unit case 2 and has peripheral edges joined to the upper ends of the front plate 22, the left plate 23, the right plate 24, and the rear plate 25 to close the unit storage space 26. Is.

In the unit case 2, one of a plurality of side plates (bottom plate 21, front side plate 22, left side plate 23, right side plate 24, rear side plate 25), here, the rear side plate 25 is a collision response side plate. The “collision-supporting side plate” is a side plate that faces the direction in which the load is input to the vehicle S (here, the vehicle rear side) when a collision occurs and receives the input load to the vehicle generated by the collision.
Then, as shown in FIG. 2, the rear side plate 25, which is the collision response side plate, includes the first load input plate portion 41, the second load input plate portion 42, the first rising plate portion 43, and the second rising plate. It has a portion 44 and a load receiving plate portion 45.

  The first load input plate portion 41 faces the load input direction at the time of a collision (vehicle rearward), the left end portion is joined to the left side plate 23, and the right end portion is provided with a space 46 to form the second load input plate portion 42. This is the part that faces.

The second load input plate portion 42 faces the load input direction (vehicle rearward) at the time of a collision, the right end portion is joined to the right side plate 24, and the left end portion is provided with a space 46 to form the first load input plate portion 41. This is the part that faces.
That is, the first load input plate portion 41 and the second load input plate portion 42 are arranged on both sides of the space portion 46 with a space 46 therebetween. Therefore, the first and second load input plate portions 41, 42 are divided in the vehicle width direction and are supported in a cantilever state by the left side plate 23 or the right side plate 24, respectively. Further, as shown in FIG. 3, the vehicle width direction dimension W1 of the first load input plate portion 41 (the dimension from the left side plate 23 to the spacing portion 46) and the vehicle width direction dimension W2 of the second load input plate portion 42 ( The dimension from the right side plate 24 to the spacing portion 46) is set to the same dimension.

  The first rising plate portion 43 is a portion that is erected from the right end portion of the first load input plate portion 41, that is, the end portion on the side of the spacing portion 46 toward the vehicle rear side which is the load input direction. Here, the angle θ1 formed by the first load input plate portion 41 and the first rising plate portion 43 is set to 90 ° as shown in FIG.

The second rising plate portion 44 is a portion that is erected from the left end portion of the second load input plate portion 42, that is, the end portion on the side of the spacing portion 46 toward the vehicle rear side which is the load input direction. Here, the angle θ2 formed by the second load input plate portion 42 and the second rising plate portion 44 is set to 90 ° as shown in FIG.
That is, the first rising plate portion 43 and the second rising plate portion 44 face each other with a gap 46 therebetween and extend in parallel. Note that, as shown in FIG. 3, the rising dimension L1 of the first rising plate portion 43 (the dimension from the first load input plate portion 41 to the tip of the first rising plate portion 43) and the rising edge of the second rising plate portion 44. The dimension L2 (the dimension from the second load input plate portion 42 to the tip of the second rising plate portion 44) is the same.

The load receiving plate portion 45 is a portion that connects the leading end of the first rising plate portion 43 and the leading end of the second rising plate portion 44 and faces the vehicle rear side, which is the load input direction.
That is, the load receiving plate portion 45 extends parallel to the first and second load input plate portions 41 and 42, and is on the vehicle rear side with respect to the first and second load input plate portions 41 and 42. Is located in. Further, since the vehicle width direction dimension W1 of the first load input plate portion 41 and the vehicle width direction dimension W2 of the second load input plate portion 42 are set to the same dimension, this load receiving plate portion 45 has the rear side plate. It is arranged in the widthwise central part of 25.

Next, the operation will be described.
First, the "action during collision of the vehicle-mounted electronic unit case of the comparative example and its problem" will be described, and subsequently, the action during collision of the vehicle-mounted electronic unit case 1 of the first embodiment will be described.

[Collision Action of In-vehicle Electronic Unit Case of Comparative Example and Its Problems]
FIG. 4 (a) is a plan view showing a collision response side plate of a vehicle-mounted electronic unit case of a comparative example, and FIG. 4 (b) shows a deformed state when a load is input to the collision response side plate shown in FIG. 4 (a). It is an explanatory view shown. Hereinafter, the action at the time of collision of the vehicle-mounted electronic unit case of the comparative example and its problem will be described with reference to FIG.

  In the on-vehicle electronic unit case 100 of the comparative example, as shown in FIG. 4 (a), the collision response side plate 101 facing the rear of the vehicle is formed of a flat plate member, and the entire surface of the collision response side plate 101 is used when a collision occurs. It is configured to receive an input load. In other words, the collision response side plate 101 has a left end portion joined to the left side plate 102, a right end portion joined to the right side plate 103, and a central portion being a flush surface.

When a collision from the rear of the vehicle occurs in such a vehicle-mounted electronic unit case 100 and a load F is input from the rear of the vehicle, as shown in FIG. It is largely recessed and deformed toward the inside of the case 100.
At this time, the collision response side plate 101 is most deformed at the central portion A farthest from the left side plate 102 and the right side plate 103, and faces the left end portion joined to the left side plate 102 and the right end portion joined to the right side plate 103. And the amount of deformation gradually decreases.

However, in the in-vehicle electronic unit case 100 of this comparative example, since the input load F is received by the entire surface of the collision response side plate 101, the central portion A is deformed relatively largely, and the deformation stress is also increased.
Then, when the deformation stress of the collision-handling side plate 101 becomes large, there is a problem that the joint portion B with the left side plate 102 that supports the collision-handling side plate 101 or the joint portion C with the right side plate 103 is likely to be damaged.

[Action when a collision occurs]
FIG. 5 is an explanatory diagram showing a deformed state when a load is input to the collision-corresponding side plate of the vehicle-mounted electronic unit case of the first embodiment. Hereinafter, the action at the time of collision of the vehicle-mounted electronic unit case 1 according to the first embodiment will be described with reference to FIG.

  When a rear collision occurs in the vehicle S equipped with the on-vehicle electronic unit case 1 of the first embodiment, a load F (a load having the same magnitude as that in the comparative example) is input from the rear of the vehicle. The load F is first input to the load receiving plate portion 45 of the rear side plate 25, which is a side plate against collision, and the load receiving plate portion 45 is dented and deformed toward the inside of the unit case 2.

  Here, both end portions in the vehicle width direction of the load receiving plate portion 45 are respectively supported by the first rising plate portion 43 and the second rising plate portion 44 that are opposed to each other with a spacing portion 46 therebetween. That is, the vehicle-widthwise dimension W3 (see FIG. 3) of the load receiving plate portion 45 is shorter than the vehicle-widthwise dimension W4 (see FIG. 4) of the collision response side plate 101 in the vehicle-mounted electronic unit case 100 of the comparative example. .

  As a result, in the vehicle-mounted electronic unit case 1 of the first embodiment, it is possible to reduce the support interval dimension in the load receiving plate portion 45 to which the load F is input, as compared with the vehicle-mounted electronic unit case 100 of the comparative example. Since the support spacing dimension is short, the amount of deformation of the load receiving plate portion 45 due to the input load F is smaller than the amount of deformation of the collision-handling side plate 101 in the vehicle-mounted electronic unit case 100 of the comparative example. Furthermore, by suppressing the amount of deformation, the generation of deformation stress can be made relatively small. Therefore, it is possible to prevent damage to the joint portion D with the first rising plate portion 43 and the joint portion E with the second rising plate portion 44 that support the load receiving plate portion 45.

Furthermore, the load F input to the load receiving plate portion 45 is transmitted from the both end portions in the width direction of the load receiving plate portion 45 to the first rising plate portion 43 and the second rising plate portion 44 in a substantially halved manner. Input is made to the right end portion of the first load input plate portion 41 joined to the rising plate portion 43 and the left end portion of the second load input plate portion 42 joined to the second rising plate portion 44, respectively.
Here, in the first load input plate portion 41 or the second load input plate portion 42 as well, since the load receiving plate portion 45 is formed, the vehicle width direction dimensions W1 and W2 are the vehicle-mounted electronic unit case 100 of the comparative example. Is smaller than half the dimension W4 of the collision-handling side plate 101 in the vehicle width direction.

As a result, in the case 1 for the on-vehicle electronic unit of the first embodiment, compared with the case 100 for the on-vehicle electronic unit of the comparative example, from the load input position in the first and second load input plate portions 41, 42 where the load F is input The distance dimension to the support position can be shortened. Therefore, the amount of deformation of the first and second load input plate portions 41, 42 due to the input load F is smaller than the amount of deformation of the collision response side plate 101 in the vehicle-mounted electronic unit case 100 of the comparative example. Further, since the loads themselves input to the first and second load input plate portions 41 and 42 are also dispersed, the amount of deformation can be further suppressed.
By suppressing the amount of deformation, the generation of deformation stress can be made relatively small, and the joint portion G between the first load input plate portion 41 and the first rising plate portion 43 and the second load input plate portion can be obtained. The joint portion H between the second rising plate portion 42 and the second rising plate portion 44, the joint portion J between the first load input plate portion 41 and the left side plate 23, and the joint portion K between the second load input plate portion 42 and the right side plate 24 are damaged. It can be hard to occur.

  As described above, in the vehicle-mounted electronic unit case 1 according to the first embodiment, the first and second rising plate portions 43 and 44 that face the collision-corresponding side plate with the gap portion 46 therebetween, and the load receiving plate portion 45 that connects them. By providing a convex shape, the first and second load input plate portions 41 and 42, the first and second rising plate portions 43 and 44, and the load receiving plate portion 45 respectively reduce the input load F and the deformation. It can be dispersed. As a result, it is possible to prevent the collision-aware side plate from being locally largely deformed and stress from being concentrated.

Next, the effect will be described.
In the vehicle-mounted electronic unit case 1 of the first embodiment, the following effects can be obtained.

(1) A unit case 2 that is attached to the vehicle S and has a plurality of side plates (a front side plate 22, a left side plate 23, a right side plate 24, a rear side plate 25) that surrounds a unit storage space 26 that stores the vehicle-mounted electronic unit U is provided. In case 1 for in-vehicle electronic unit,
In the unit case 2, at least one side plate (rear side plate 25) of the plurality of side plates (front side plate 22, left side plate 23, right side plate 24, rear side plate 25) is used as a collision response side plate,
The collision response side plates face a load input direction at the time of a collision, respectively, and a first load input plate part 41 and a second load input plate part 42 which are arranged on both sides of the interval part 46 with an interval part 46 therebetween.
A first rising plate portion 43 that stands from the end portion of the first load input plate portion 41 on the side of the spacing portion 46 toward the load input direction (vehicle rearward);
A second rising plate part 44, which stands from the end of the second load input plate part 42 on the side of the spacing part 46 toward the load input direction (vehicle rearward) and faces the first rising plate part 43. When,
A load receiving plate portion 45 that connects the tips of the first rising plate portion 43 and the second rising plate portion 44 and that faces the load input direction (vehicle rear side);
It has a structure having.
As a result, it is possible to prevent the unit case 2 accommodating the vehicle-mounted electronic unit U from being damaged during a vehicle collision.

(Example 2)
The second embodiment is an example in which the first and second rising plate portions are inclined with respect to the load input direction so that their tips are close to each other.

  FIG. 6 is a perspective view showing a vehicle-mounted electronic unit case of the second embodiment. FIG. 7 is a plan view showing a collision-handling side plate of the on-vehicle electronic unit case of the second embodiment. The configuration of the on-vehicle electronic unit case of the second embodiment will be described below with reference to FIGS. 6 and 7. The same parts as those in the first embodiment are designated by the same reference numerals as those in the first embodiment, and detailed description thereof will be omitted.

As shown in FIG. 6, the unit case 2A of the vehicle-mounted electronic unit case 1A of the second embodiment has a bottom plate 21, a front side plate 22 which is a plurality of side plates, a left side plate 23, a right side plate 24, and a rear side plate 25A. And have.
Then, the rear side plate 25A facing the rear of the vehicle is used as a side plate for collision, and the rear side plate 25A includes the first load input plate portion 41A, the second load input plate portion 42A, the first rising plate portion 43A, and the second rising plate. It has a plate portion 44A and a load receiving plate portion 45A.

The first load input plate portion 41A faces the load input direction (vehicle rearward) at the time of a collision, the left end portion is joined to the left side plate 23, and the right end portion is provided with a space 46A to form the second load input plate portion 42A. This is the part that faces.
In addition, as shown in FIG. 7, the vehicle width direction dimension W1A of the first load input plate portion 41A (the dimension from the left side plate 23 to the spacing portion 46A) and the vehicle width direction dimension W2A of the second load input plate portion 42A ( The dimension from the right side plate 24 to the spacing portion 46A) is set to the same dimension.

  The second load input plate portion 42A faces the load input direction (vehicle rearward) at the time of a collision, the right end portion is joined to the right side plate 24, and the left end portion is provided with a gap 46A to form the first load input plate portion 41A. This is the part that faces.

  The first rising plate portion 43A is a portion that is erected from the right end portion of the first load input plate portion 41A, that is, the end portion on the spacing portion 46A side toward the vehicle rear side which is the load input direction. Here, the angle θ3 formed by the first load input plate portion 41A and the first rising plate portion 43A is set to 90 ° or more as shown in FIG. 7, and the tip of the first rising plate portion 43A is second. It is inclined with respect to the load input direction so as to be close to the rising plate portion 44A.

  The second rising plate portion 44A is a portion erected from the left end portion of the second load input plate portion 42A, that is, the end portion on the side of the spacing portion 46A toward the vehicle rear side which is the load input direction. Here, the angle θ4 formed by the second load input plate portion 42A and the second rising plate portion 44A is set to 90 ° or more as shown in FIG. 7, and the tip of the second rising plate portion 44A is first. It is inclined with respect to the load input direction so as to be close to the rising plate portion 43A.

The load receiving plate portion 45A is a portion that connects the leading end of the first rising plate portion 43A and the leading end of the second rising plate portion 44A and faces the vehicle rear side, which is the load input direction. Here, an angle θ5 formed by the load receiving plate portion 45A and the first rising plate portion 43A and an angle θ6 formed by the load receiving plate portion 45A and the second rising plate portion 44A are 90 as shown in FIG. 7, respectively. It is set to ° or higher.
The vehicle width direction dimension W3A of the load receiving plate portion 45A is set to be the same as the vehicle width direction dimension W3 of the load receiving plate portion 45 of the first embodiment. On the other hand, the first rising plate portion 43A and the second rising plate portion 44A are inclined with respect to the first load input plate portion 41A and the second load input plate portion 42A, respectively. Therefore, the vehicle width direction dimension W1A of the first load input plate portion 41A and the vehicle width direction dimension W2A of the second load input plate portion 42A are the vehicle width direction dimension W1 of the first load input plate portion 41 of the first embodiment. Alternatively, it becomes shorter than the vehicle width direction dimension W2 of the second load input plate portion 42.

  FIG. 8 is an explanatory diagram showing a deformed state when a load is input to the collision-corresponding side plate of the vehicle electronic unit case of the second embodiment. Hereinafter, the operation at the time of collision of the vehicle-mounted electronic unit case 1A according to the second embodiment will be described with reference to FIG.

  When a load F due to a collision (a load having the same magnitude as in the case of the comparative example) is input to the vehicle-mounted electronic unit case 1A of the second embodiment, this load F is first the load of the rear side plate 25A which is the collision-corresponding side plate. Input to the receiving plate portion 45A. As a result, the load receiving plate portion 45A is dented and deformed toward the inside of the unit case 2A.

  Here, the vehicle width direction dimension W3A of the load bearing plate portion 45A is the same dimension as the vehicle width direction dimension W3 of the load bearing plate portion 45 of the first embodiment, and the collision countermeasure side plate in the vehicle-mounted electronic unit case 100 of the comparative example. It is shorter than the vehicle width direction dimension W4 of 101.

  Therefore, also in the in-vehicle electronic unit case 1A of the second embodiment, the support interval dimension in the load receiving plate portion 45A becomes shorter than in the in-vehicle electronic unit case 100 of the comparative example, and the load receiving plate portion 45A due to the input load F is generated. Is smaller than the deformation amount of the collision response side plate 101 in the vehicle-mounted electronic unit case 100 of the comparative example. Furthermore, by suppressing the amount of deformation, the generation of deformation stress can be made relatively small. Therefore, it is possible to prevent damage to the joint portion M with the first rising plate portion 43A that supports the load receiving plate portion 45A and the joint portion N with the second rising plate portion 44A.

  Further, the load F input to the load receiving plate portion 45A is divided into two equal parts from the widthwise both ends of the load receiving plate portion 45A to the first rising plate portion 43A and the second rising plate portion 44A and transmitted. And it inputs into the right end part of 41 A of 1st load input board parts joined to 43 A of 1st rising board parts, and the left end part of 42 A of 2nd load input plate parts joined to 44 A of 2nd rising board parts, respectively.

  Here, the angle θ3 formed by the first load input plate portion 41A and the first rising plate portion 43A and the angle θ4 formed by the second load input plate portion 42A and the second rising plate portion 44A are each 90 ° or more. Is set to. Therefore, when the load F is input, the first and second load input plate portions 41A and 42A are more easily bent than in the first embodiment, and the input load F can be dispersed.

Further, in the second embodiment, the vehicle width direction dimension W1A of the first load input plate portion 41A and the vehicle width direction dimension W2A of the second load input plate portion 42A are the same as those of the first load input plate portion 41 of the first embodiment. It is shorter than the dimension W1 in the vehicle width direction and the dimension W2 in the vehicle width direction of the second load input plate portion 42. Therefore, as compared with the first embodiment, the load input position can be closer to the support position, and the deformation amount of the first and second load input plate portions 41A and 42A can be further suppressed as compared with the first embodiment.
By suppressing the amount of deformation, the generation of deformation stress can be made relatively small, and the joining portion P between the first load input plate portion 41A and the first rising plate portion 43A and the second load input plate portion can be obtained. 42A and the second rising plate portion 44A joint portion Q, the first load input plate portion 41A and the left side plate 23 joint portion R, the second load input plate portion 42A and the right side plate 24 joint portion T damage. It can be hard to occur.

  In the second embodiment, the angle θ3 formed by the first load input plate portion 41A and the first rising plate portion 43A, the angle θ4 formed by the second load input plate portion 42A and the second rising plate portion 44A, the load receiver The angle θ5 formed by the plate portion 45A and the first rising plate portion 43A, and the angle θ6 formed by the load receiving plate portion 45A and the second rising plate portion 44A are set to 90 ° or more, respectively. Therefore, when the load F is input and the rear side plate 25A is dented and deformed toward the inside of the unit case 2A, the joint portions M, N, P, Q are unlikely to form an acute angle. As a result, it is possible to further prevent the joint portions M, N, P, Q from being damaged.

  That is, in the vehicle-mounted electronic unit case 1A of the second embodiment, the following effects can be achieved.

(2) The first rising plate portion 43A and the second rising plate portion 44A are configured to be inclined with respect to the load input direction so that their tips are close to each other.
Thereby, the deformation of the unit case 2A when the load F is input can be further suppressed.

(Example 3)
The third embodiment is an example in which accessory parts of the vehicle-mounted electronic unit are arranged in a convex space surrounded by the first rising plate portion, the second rising plate portion, and the load receiving portion.

  FIG. 9 is a plan view showing the inside of the on-vehicle electronic unit case of the third embodiment. The configuration of the vehicle-mounted electronic unit case of the third embodiment will be described below with reference to FIG. The same parts as those in the first and second embodiments are designated by the same reference numerals as those in the first embodiment, and detailed description thereof will be omitted.

As shown in FIG. 9, the unit case 2B of the vehicle-mounted electronic unit case 1B of the third embodiment includes a bottom plate 21, a front side plate 22 which is a plurality of side plates, a left side plate 23, a right side plate 24, and a rear side plate 25B. And have. Then, the rear side plate 25B facing the rear of the vehicle is used as a collision response side plate, and the rear side plate 25B includes the first load input plate portion 41B, the second load input plate portion 42B, the first rising plate portion 43B, and the second rising plate. It has a plate portion 44B and a load receiving plate portion 45B.
Further, here, the first rising plate portion 43B and the second rising plate portion 44B are inclined such that their tips are close to each other with respect to the load input direction (vehicle rear side).

  Accordingly, also in the vehicle-mounted electronic unit case 1B of the third embodiment, when the load F is input, as in the second embodiment, the first load input plate portion 41B, the second load input plate portion 42B, and the second load input plate portion 42B. The input load F can be dispersed by the plate portions of the first rising plate portion 43B, the second rising plate portion 44B, and the load receiving plate portion 45B, and the amount of deformation of the rear side plate 25B and the generation of stress can be suppressed.

  Then, in the third embodiment, the vehicle-mounted electronic unit U has a unit main body 50 such as a control circuit board and a circuit unit, and a connector 52 (electrically connected to the unit main body 50 via a harness 51 ( Have accessories). Parts outside the case (not shown) are connected to the connector 52.

  The unit main body portion 50 includes the front side plate 22, the left side plate 23, the right side plate 24, and the first load input plate portion 41B and the second load input plate portion of the rear side plate 25B in the unit housing space 26B of the unit case 2B. The main storage space 29A is surrounded by 42B.

On the other hand, the connector 52, which is an accessory, is surrounded by the first rising plate part 43B of the rear side plate 25B, the second rising plate part 44B, and the load receiving plate part 45B, and communicates with the main storage space 29A. It is arranged in the convex space 29B of the space 26B.
An opening 47 is formed in the second rising plate portion 44B to expose the connecting portion 52a of the connector 52.

  In the vehicle electronic unit case 1B of the third embodiment, the connector 52, which is an accessory to the vehicle electronic unit U, is arranged in the convex space 29B, so that the internal space of the unit storage space 26B can be effectively used. It is possible to reduce unnecessary space. As a result, the unit case 2B can be downsized.

In addition, the harness 51 that electrically connects the unit main body 50 arranged in the main storage space 29A and the connector 52 arranged in the convex space 29B can be arranged with a margin.
That is, by disposing the connector 52 in the convex space 29B, the distance between the unit body 50 and the connector 52 can be secured without increasing the size of the unit case 2B, and the bending of the harness 51 can be prevented. The connector 52 can be installed without imposing an excessive load on the harness 51.

  Further, in the third embodiment, since the second rising plate portion 44B to which the connector 52 is fixed is inclined with respect to the load input direction, it is possible to arrange the harness 51 without extremely bending it. ing.

  That is, in the vehicle-mounted electronic unit case 1B of the third embodiment, the following effects can be achieved.

(3) The unit storage space 26B communicates with a main storage space 29A surrounded by the plurality of side plates (front side plate 22, left side plate 23, right side plate 24, rear side plate 25B) and the main storage space 29A. And a convex space 29B surrounded by the first rising plate part 43B, the second rising plate part 44B, and the load receiving part 45B,
An accessory (connector 52) electrically connected to the vehicle-mounted electronic unit U is arranged in the convex space 29B.
Thereby, the unit storage space 26B can be effectively used, and the unit case 2B can be downsized.

  Although the case for the on-vehicle electronic unit of the present invention has been described above based on the first to third embodiments, the specific configuration is not limited to these embodiments, and each claim of the claims is not limited. Modifications and additions of the design are allowed without departing from the gist of the invention according to the section.

  In the above-described first embodiment, an example in which the vehicle-mounted electronic unit case 1 is arranged in the rear part of the vehicle S and the rear side plate 25 facing the rear of the vehicle is used as the collision response side plate is shown, but the invention is not limited to this. The in-vehicle electronic unit case 1 may be arranged at any position such as the front portion or the central portion of the vehicle S. In addition, depending on the vehicle requirements that differ depending on the arrangement position of the on-vehicle electronic unit case 1 or the like, any one of the front side plate 22, the left side plate 23, and the right side plate 24 may be used as the collision response side plate, or a plurality of side plates may collide. It may be a corresponding side plate.

  Further, in the first embodiment, the rising dimensions L1 and L2 of the first and second rising plate portions 43 and 44 are set to be the same, and the load receiving plate portion 45 is set to the first and second load input plate portions 41 and 42. Although the example of arranging in parallel is shown, the invention is not limited to this. For example, the rising dimension L1 of the first rising plate portion 43 and the rising dimension L2 of the second rising plate portion 44 are different from each other, and the load receiving plate portion 45 is different from the first and second load input plate portions 41 and 42. May be inclined.

  Further, as shown in FIG. 10, even if the rising dimension L1α at the upper end portion of the first rising plate portion 43 and the rising dimension L1β at the lower end portion are made different so that the load receiving plate portion 45 is inclined with respect to the vertical direction. Good.

  Further, in the third embodiment, an example in which the opening 47 that exposes the connecting portion 52a of the connector 52 is formed in the second rising plate portion 44B has been shown, but the present invention is not limited to this. The opening 47 may be formed in the first rising plate portion 43B, or may be formed in the bottom plate 21 or the cover 3 in the convex space 29B. The opening area of the opening 47 is set in consideration of the strength of the side plate that sets the opening 47.

  Further, in the first embodiment, the example in which the front side plate 22, the left side plate 23, the right side plate 24, and the rear side plate 25 are used as the plurality of side plates has been shown, but the present invention is not limited to this. That is, the unit case 2 may have a polygonal shape when seen in a plan view. Further, the unit case 2 may have a circular shape including an ellipse when seen in a plan view. In this case, a part of the side plate is set as the collision response side plate.

  Further, in the second embodiment, an example in which each of the first rising plate portion 43A and the second rising plate portion 44A is inclined with respect to the load input direction has been shown, but the first and second rising plate portions 43A, 44A are shown. Only one of them may be inclined.

  Furthermore, in each of the above-described embodiments, an example in which the first and second rising plate portions are flat surfaces has been shown, but the present invention is not limited to this. The first and second rising plate portions 43 and 44 may have a bent portion α extending in the vertical direction or the load input direction, as shown in FIGS. 11 (a) and 11 (b).

1 In-vehicle electronic unit case 2 Unit case 3 Cover 21 Bottom plate 22 Front side plate 23 Left side plate 24 Right side plate 25 Rear side plate 26 Unit storage space 27 Opening 28 Flange 41 First load input plate 42 Second load input plate 43 43th 1 rising board part 44 2nd rising board part 45 load receiving board part 46 interval part

Claims (4)

In a case for a vehicle-mounted electronic unit, which is mounted on a vehicle and includes a unit case having a plurality of side plates surrounding a unit housing space for housing a vehicle-mounted electronic unit,
In the unit case, at least one of the side plates is a side plate for collision,
The collision response side plate, a gap portion,
With opposing the load input direction of the respective time of collision, a first load input plate portion and the second load receiving plate portion arranged on both sides at a the distance portion,
A first rising plate portion standing upright in the load input direction from an end portion of the first load input plate portion on the spacing portion side;
A second rising plate portion that is provided upright in the load input direction from an end portion of the second load input plate portion on the side of the spacing portion and that faces the first rising plate portion;
A load receiving plate portion that connects the tips of the first rising plate portion and the second rising plate portion and faces each other in the load input direction;
A case for an in-vehicle electronic unit, comprising: In the case for a vehicle-mounted electronic unit according to claim 1,
At least one of the first rising plate portion and the second rising plate portion is inclined with respect to the load input direction such that tips of the first rising plate portion and the second rising plate portion are close to each other. In the case for a vehicle-mounted electronic unit according to claim 1 or 3,
The unit storage space communicates with the main storage space surrounded by the plurality of side plates, the main storage space, and is surrounded by the first rising plate portion, the second rising plate portion, and the load receiving portion. And a convex space,
An in-vehicle electronic unit case, wherein an accessory that is electrically connected to the in-vehicle electronic unit is arranged in the convex space. The in-vehicle electronic unit case according to any one of claims 1 to 3,
The side plate against collision is a plate member standing upright from the bottom plate of the unit case,
A vehicle-mounted vehicle characterized in that a convex shape formed by the first rising plate portion, the second rising plate portion, and the load receiving plate portion is formed over the entire length in the standing direction of the side plate from the bottom plate. Electronic unit case.