Housing for electronic control device and electronic control device

Abstract

To provide a technique capable of improving the cooling performance of an electronic control device.SOLUTION: A housing for an electronic control device includes a fin 29 protruding outward on a top surface 25 of a housing 9 that houses a heat-generating component. The fin 29 has a first surface M1 facing a first direction D1 and a second surface M2 facing a second direction D2 perpendicular to the first direction D1. The first surface M1 and the second surface M2 are shaped like a right triangle having a side H3 and a hypotenuse H2 extending perpendicularly from the surface. By using the housing 9, the cooling performance of an electronic control device 1 can be improved.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a technique for enhancing the heat dissipation performance of an electronic control device and a housing.

Background Art

[0002] In recent years, as in-vehicle electronic devices have become smaller and generated more heat, a structure that can dissipate heat efficiently has been demanded. As this type of heat dissipation structure, it is common to provide a heat dissipation member between a heat generating body and a metal housing, and to provide fins on the metal housing to efficiently release heat to the surroundings.

[0003] When an electronic control device is arranged in an engine room, usually, since wind is generated by the running wind or the radiator fan in the engine room, the heat is released from the housing surface by the wind passing between the fins.

[0004] By the way, generally, it is known that heat transfer to the surroundings is promoted more by turbulent flow with vortices than by laminar flow for the wind hitting the fins. For example, Patent Document 1 below discloses a configuration in which a bar-shaped member having a prism shape is arranged upstream of a flat fin attached to a heat dissipation target to generate Karman vortices in the wake.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, as a result of the inventors' detailed examination, the following problems were found in the conventional technology. Specifically, in the above-described conventional technology, heat transfer is improved by Karman vortices. However, with the increasing heat generation of electronic components used in electronic control devices, further improvement in heat dissipation performance (and thus cooling performance) is desired.

[0007] One aspect of the present disclosure aims to provide a technology capable of enhancing the cooling performance of an electronic control device.

Means for Solving the Problems

[0008] a) One embodiment of the present disclosure relates to a housing (9) for an electronic control device that houses heat-generating components. On the outer surface (25) of the housing for the electronic control device, a protruding portion (29) that protrudes outward is provided. The protruding portion includes a first surface (M1) facing the first direction and a second surface (M2) facing the second direction perpendicular to the first direction. The shapes of the first surface and the second surface are in the shape of a right triangle having a side (H3) extending vertically from the surface and a hypotenuse (H2).

[0009] By using such a housing for the electronic control device, the cooling performance of the electronic control device can be enhanced. By arranging the electronic control device provided with the housing for the electronic control device in a space where wind flows in a predetermined direction, it is possible to generate longitudinal vortices at the protruding portion. That is, by arranging the first surface or the second surface having a right triangle shape to face the wind flow, it is possible to efficiently generate longitudinal vortices. Therefore, the generated longitudinal vortices can effectively cool the electronic control device. Note that by having a vertical side of the right triangle, it is possible to maximize the generation of longitudinal vortices in a member such as the protruding portion (for example, a small member).

[0010] b) Another embodiment of the present disclosure relates to a housing (9) for an electronic control device that houses heat-generating components. On the outer surface (25) of the housing for the electronic control device, a plate-shaped protruding portion (29) that protrudes outward is provided. The shape of the protruding portion as viewed from the thickness direction is in the shape of a right triangle having a side (H3) extending vertically from the surface and a hypotenuse (H2).

[0011] By using such a housing for an electronic control device, the cooling performance of the electronic control device can be enhanced. By disposing the electronic control device provided with the housing for an electronic control device in a space where wind flows in a predetermined direction, it is possible to generate a longitudinal vortex at the protruding portion. That is, by disposing the right triangle-shaped portion of the protruding portion so as to face the wind flow, it is possible to efficiently generate a longitudinal vortex. Therefore, the generated longitudinal vortex can effectively cool the electronic control device. Note that by having a vertical side of the right triangle, in a member such as the protruding portion (for example, a small member), the generation of the longitudinal vortex can be maximized.

[0012] c) Still another aspect of the present disclosure relates to an electronic control device (1) that houses a heat-generating component in a housing for an electronic control device that houses the heat-generating component. By disposing the electronic control device using the above-described housing for an electronic control device in a space where wind flows in a predetermined direction, a longitudinal vortex can be efficiently generated at the protruding portion, and the cooling performance of the electronic control device can be enhanced.

[0013] Note that the shape of the right triangle may include not only the right triangle itself but also those that can be regarded as substantially a right triangle. Also, the reference signs in parentheses described in this column and the claims indicate the correspondence with the specific means described in the embodiments described later as one aspect, and do not limit the technical scope of the present disclosure.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Mode for Carrying Out the Invention

[0015] Hereinafter, exemplary embodiments of the present disclosure will be described with reference to the drawings. [1. First Embodiment] In this first embodiment, an electronic control device mounted on a vehicle or the like and a housing for the electronic control device will be described.

[0016] [1-1. Configuration] As shown in FIG. 1, the electronic control device 1 of this first embodiment is a control device that controls the operation of the vehicle 3. The electronic control device 1 is disposed, for example, in the engine room 5 of the vehicle 3 and is fixed to a mounting target such as the vehicle body 7 or a battery holder (not shown) by a bracket or the like.

[0017] In the engine room 5, as shown by the arrow, wind such as wind from a radiator (not shown) or traveling wind flows during the running of the vehicle 3, and this wind hits the wall surface and various components in the engine room 5 and flows around the electronic control device 1.

[0018] <Electronic control device> First, the electronic control device 1 will be described. As shown in FIG. 2, the electronic control device 1 includes a housing 9 which is a container for housing a substrate on which electronic components such as heat-generating components are mounted, and a connector 11 fixed to the housing 9.

[0019] In the following, the explanation will be made using the orthogonal coordinates of XYZ. The + side in the X-axis direction is the front side, and the - side is the rear side. The + side in the Y-axis direction is the right side, and the - side is the left side. The + side in the Z-axis direction is the upper side, and the - side is the lower side.

[0020] As shown in FIGS. 2 and 3, the electronic control device 1 is, for example, substantially rectangular in a plan view (see FIG. 3A) as viewed from the Z-axis direction, and is a substantially plate-shaped device having a predetermined thickness (that is, the thickness in the Z-axis direction).

[0021] The housing 9 includes a box-shaped case 13 and a cover 15 that covers the opening on the lower side of the case 13. Note that the case 13 and the cover 15 are made of a metal such as an aluminum alloy, and are, for example, members integrally formed by casting (for example, members made of aluminum die-casting).

[0022] The case 13 is a box-shaped container with openings on the lower side and the rear side, and includes a main body portion 17 having a substantially rectangular parallelepiped shape (specifically, a thin plate shape), and a case rear portion 19 that is thicker than the main body portion 17 at the rear side of the main body portion 17. Note that an overhanging portion 21 is provided so as to surround the outer periphery of the lower portion of the case 13.

[0023] Inside the main body portion 17, a substrate on which heat-generating components and the like are mounted is disposed, and a part of the connector 11 is fitted on the rear side of the case rear portion 19. The cover 15 is a plate-shaped member that is substantially rectangular in a plan view, and its periphery extends to the same position as the overhanging portion 21 of the case 13.

[0024] Note that the case 13 and the cover 15 are integrally fixed by fixing members 23 such as screws disposed on the overhanging portion 21 of the case 13 and the outer peripheral portion of the cover 15. <Case> Next, the case 13 will be described in more detail.

[0025] The main body portion 17 of the case 13 is substantially rectangular in plan view, and its upper surface 25 is flat. At the four corners of the upper surface 25, mounting portions 27 are provided to which brackets (not shown) for fixing the electronic control device 1 to the mounting target are attached.

[0026] On the upper surface 25 of the case 13, a plurality of fin 29, which are triangular protrusions, are erected perpendicular to the upper surface 25. The fin 29 is integrally formed with the case 13.

[0027] As shown in FIG. 4, the fin 29 is in the shape of a plate with a uniform thickness, and the shape viewed from the thickness direction (see FIG. 4A) is triangular (specifically, a right triangle). The fin 29 has a bottom side H1 in contact with the upper surface 25, a hypotenuse H2 inclined with respect to the bottom side H1, and a side (hereinafter, the vertical side) H3 perpendicular to the bottom side H1 when viewed from the thickness direction. Further, it has a vertex T1 which is the intersection of the bottom side H1 and the hypotenuse H2, a vertex T2 which is the intersection of the hypotenuse H2 and the vertical side H3, and a vertex T3 which is the intersection of the vertical side H3 and the bottom side H1. Furthermore, it has an apex angle C1 formed by the bottom side H1 and the hypotenuse H2, an apex angle C2 formed by the hypotenuse H2 and the vertical side H3, and a right apex angle C3 formed by the vertical side H3 and the bottom side H1.

[0028] Note that, as the inclination angle of the hypotenuse H2 of the fin 29 (that is, the apex angle C1), for example, 40° can be adopted, but it is not limited thereto. For example, as the apex angle C1, 40° ± 10° etc. can be adopted.

[0029] Also, although the apex angle C3 is 90°, a range that can be regarded as a substantially right triangle may be adopted. For example, as the apex angle C3, 90° ± 2° etc. can be adopted. As shown in FIG. 3A, a total of 20 fins 29 are arranged, for example, in 4 rows in the X-axis direction and 5 rows in the Y-axis direction. Note that the fins 29 do not have to be arranged in alignment perpendicular to each other in the vertical and horizontal directions, and may be arranged randomly on the upper surface 25 as long as they can receive wind from the outside and generate longitudinal vortices as described later.

[0030] In a plan view (see FIG. 3A), each fin 29 is arranged to be inclined with respect to the X-axis and the Y-axis. For example, it is inclined at a predetermined angle (e.g., 45°) with respect to the Y-axis direction. Note that the number and inclination angle of the fins 29 are not limited to this.

[0031] Among the fins 29, the four left columns (the first group) shown in FIG. 3A are arranged such that the left side is the hypotenuse H2 rising to the upper right and the right side is the vertical side H3 as shown in FIG. 3B. On the other hand, one right column (the second group) shown in FIG. 3A is arranged such that the left side is the vertical side H3 and the right side is the hypotenuse H2 falling to the lower right as shown in FIG. 3B.

[0032] Specifically, as shown in FIG. 3A, the fin 29 includes a first surface M1 that is a plane of a right triangle facing the first direction D1, and a second surface M2 that is a plane of a right triangle facing the second direction D2 perpendicular to the first direction. Note that the first direction D1 is, for example, a direction from the front side to the rear side along the X-axis direction, and the second direction D2 is, for example, a direction from the left side to the right side along the Y-axis direction.

[0033] Also, among the fins 29, some have a higher height on the inner side than on the outer peripheral side (outer side) in a plan view. For example, in the left 1st and 2nd columns in FIG. 3A, the inner side is higher than the outer peripheries on the front side and the left side. Also, in the front 1st and 2nd columns in FIG. 3A, the inner side is higher than the outer periphery on the front side. Note that in the right 1st column in FIG. 3A, the inner side (left side) is higher than the outer periphery on the right side.

[0034] [1-2. Principle] In the first embodiment, since longitudinal vortices are generated by the fins 29, the principle of generating longitudinal vortices will be described.

[0035] As shown in FIG. 5A, when the wind blows in the first direction D1, as shown in FIG. 5B, taking the case where the fin 29 is broken at A-A, B-B, and C-C in order from the front side as an example, it will be described. Here, the apex angle C1 of the fin 29 is, for example, 45°.

[0036] As shown in FIG. 5E, at the tip portion (the portion having the apex angle C1: the left end portion of the fin 29) 31 of the fin 29, the wind passing through the hit of the hypotenuse H2 wraps around to the back side of the fin 29 under negative pressure.

[0037] Subsequently, as shown in FIG. 5D, at the central portion 33 of the fin 29, the wind passing through the hit of the hypotenuse H2 similarly wraps around to the back side of the fin 29 under negative pressure. At this time, as shown by the size of the arrow in the figure, the width of the wrap becomes larger for the wind that has passed through the tip portion 31 of the fin 29 described above.

[0038] Subsequently, as shown in FIG. 5C, at the rear end portion (the right end portion of the fin 29 in the figure) 35 of the fin 29, the wind passing through the hit of the hypotenuse H2 similarly wraps around to the back side of the fin 29 under negative pressure. At this time, as shown by the size of the arrow in the figure, the width of the wrap becomes larger respectively for the wind that has passed through the tip portion 31 of the fin 29 and the wind that has passed through the central portion 33 described above.

[0039] By continuously causing the wind to wrap around on the leeward side of the fin 29 in this way, the circular motion of the wind continues and a longitudinal vortex is generated. It is presumed that the radius of the longitudinal vortex changes depending on the speed of the wind entering the back side of the fin 29 and the shape of the fin 29 (the size and inclination of the hypotenuse H2, etc.).

[0040] [1 - 3. Usage method] When the electronic control device 1 of the first embodiment is installed in the engine room 5 of the vehicle 3, since the running wind and the wind generated by the radiator fan are present, the wind flows along the surface of the housing 9, specifically, the upper surface 25 of the main body portion 17 of the housing 9.

[0041] Therefore, predict the wind flow in advance and attach the electronic control device 1 so that the wind blows from, for example, the first direction D1 against the fin 29. Alternatively, when the position where the electronic control device 1 is attached and the direction of the wind flow are determined, for example, as shown in FIG. 3A, with respect to the first surface M1 or the second surface M2 of the fin 29, the wind hits at a predetermined angle (for example, 45°) in a plan view with respect to the upper surface 25, and set the orientation of the fin 29.

[0042] That is, the first surface M1 or the second surface M2 of the fin 29 is arranged so as to face obliquely to the wind flow, the tip 31 on the lower end side of the hypotenuse H2 is arranged on the upstream side of the wind flow, and the rear end 35 of the hypotenuse H2 is arranged on the downstream side of the wind flow with respect to the tip 31. Note that the vertical side H3 is arranged on the downstream side of the wind flow.

[0043] By doing so, as shown in FIG. 5B, the wind from the first direction D1 hits the fin 29 obliquely, so that it is possible to generate a longitudinal vortex by the fin 29. Further, even when the wind hits from the second direction D2, it is possible to generate a longitudinal vortex by the fin 29 on the same principle.

[0044] Note that, in the electronic control device 1, among the five rows of fins 29 shown in FIG. 3B, one row in the second group on the right side has a different (i.e., opposite) orientation of the fin 29 from the other four rows in the first group. That is, in the fins 29 of the second group, the tip 31 is located in the upper right side of FIG. 3B, and the rear end 35 is located in the lower left side of FIG. 3B. In this case, for example, when the wind blows from the right side, the fins 29 in the second group on the right side can effectively generate longitudinal vortices.

[0045] [1-4. Effect] According to the first embodiment, the following effects can be obtained. (1a) In the first embodiment, the fin 29 is provided on the upper surface 25 of the housing 9 of the electronic control device 1. The fin 29 includes a first surface M1 and a second surface M2, and the first surface M1 and the second surface M2 have a right triangle shape. By using such a housing 9, the cooling performance of the electronic control device 1 can be improved.

[0046] That is, by arranging the electronic control device 1 in a space where wind flows in a predetermined direction, it is possible to generate longitudinal vortices with the fins 29. Specifically, by arranging the first surface M1 or the second surface M2 having a right triangle shape so as to face the wind flow, it is possible to efficiently generate longitudinal vortices. Therefore, the generated longitudinal vortices can effectively cool the electronic control device 1.

[0047] In addition, in the case of a member such as the fin 29 (for example, a small member with respect to the electronic control device 1 etc.), by having a vertical side of a right triangle, the generation of longitudinal vortices can be maximized. When the side is not vertical, the projected area with respect to the traveling direction of the wind becomes small, so the generation area of longitudinal vortices becomes small. Therefore, it is considered that the heat dissipation capacity can be increased with a smaller member when the side is vertical.

[0048] (1b) In the first embodiment, the fin 29 is plate-shaped. With such a configuration, longitudinal vortices are likely to be generated, so the cooling performance can be improved more efficiently. (1c) In the first embodiment, the fin 29 is higher on the inner side than the outer peripheral side on the upper surface 25. With such a configuration, the area where the generated longitudinal vortices pass through the surface of the housing 9 becomes wider. Therefore, the cooling performance can be improved more efficiently.

[0049] (1d) In the first embodiment, the fin 29 becomes thinner toward the higher height. Thereby, it is superior in moldability at the time of casting etc. rather than the structure which made the thickness uniform. (1e) In the first embodiment, the fin 29 is arranged on the outer peripheral side on the upper surface 25. With such a configuration, the area where the longitudinal vortices generated by the fin 29 pass through the surface of the housing 9 becomes wider. Therefore, the cooling performance can be improved more efficiently.

[0050] (1f) In the first embodiment, since the housing 9 and the fins 29 are integrally formed and integrally configured, heat can be efficiently transferred from the housing 9 to the fins 29. Therefore, heat dissipation from the fins 29 can be more expected, and the cooling performance can be further improved.

[0051] [1-5. Corresponding relationship] Next, the relationship between the first embodiment and the present disclosure will be described. The electronic control device 1 corresponds to the electronic control device, the housing 9 corresponds to the housing for the electronic control device, the upper surface 25 corresponds to the surface, the fins 29 correspond to the protrusions, the first direction D1 corresponds to the first direction, the second direction D2 corresponds to the second direction, the hypotenuse H2 corresponds to the hypotenuse, the vertical side H3 corresponds to the vertical side, the first surface M1 corresponds to the first surface, and the second surface M2 corresponds to the second surface.

[0052] [1-6. Modification example] (1) In the first embodiment, the fins 29 were arranged separately as the first group and the second group. However, for example, all the fins 29 may be arranged like the first group (that is, in the same way), or may be arranged like the second group.

[0053] That is, the fins 29 may be arranged such that the tip 31 on the lower end side of the hypotenuse H2 is upwind of the rear end 35 on the rear end side of the hypotenuse H2, and a longitudinal vortex is generated when the wind hits the first surface M1 or the second surface M2 obliquely.

[0054] (2) Also, as shown in FIG. 6, the fins 29 may be thinner in the direction of increasing height (that is, on the vertex T2 side rather than the base H1 side). This has the advantage of good formability when forming by casting or the like.

[0055] [2. Second embodiment] Since the basic configuration of the second embodiment is the same as that of the first embodiment, the differences from the first embodiment will be mainly described below. The same reference numerals as those in the first embodiment indicate the same configuration, and refer to the previous description.

[0056] In the second embodiment, as shown in FIGS. 7 and 8, the electronic control unit 41 includes a housing 9, fins 29, etc. similar to those in the first embodiment, and also includes pin fins 43. This will be described in detail below.

[0057] In the second embodiment, a plurality of fins 29 are arranged on the upper surface 25 of the main body 17 of the housing 9 so as to form a substantially U-shaped arrangement on the outer peripheral side (i.e., along the outer periphery) in a plan view (top view). Note that the shape of each fin 29, the orientation in the plan view (orientation with respect to the X-axis and Y-axis), the direction of the inclination of the hypotenuse H2, etc. are the same as those in the first embodiment.

[0058] Also, a plurality of pin fins 43 are erected on the upper surface 25 of the main body 17 of the housing 9 so as to be surrounded by the fins 29 arranged in a substantially U-shaped arrangement, that is, inside the outer periphery in a plan view.

[0059] The pin fins 43 are columnar and are provided perpendicular to the upper surface 25. Specifically, a total of nine pin fins 43 are arranged in three rows at equal intervals in the Y-axis direction and three rows at equal intervals in the X-axis direction.

[0060] Note that no fins 29 are arranged in the region where the pin fins 43 are arranged. That is, four fins 29 are arranged in one row at the left end, four fins 29 are arranged in two rows at the right end, and four fins 29 are arranged in one row at the front side.

[0061] In addition to the columnar pin fins 43, members that are columnar or plate-like and have the same shape in the height direction may be arranged. Here, having the same shape in the height direction (Z-axis direction) means having the same shape even when broken by a plane perpendicular to the Z-axis.

[0062] The second embodiment has the same effects as the first embodiment. In addition, in the second embodiment, since the pin fins 43 are arranged on the leeward side of the fins 29, the longitudinal vortices generated by the fins 29 can be made to pass between the pin fins 29. Therefore, the cooling capacity of the region where the pin fins 43 are arranged can be improved.

[0063] Furthermore, in the second embodiment, by adopting the pin fins 43, even if the wind direction on the surface of the housing 9 changes depending on the mounting direction of the electronic control device 41 to the vehicle 3, the cooling effect of forced convection can be received.

[0064] [3. Other Embodiments] As described above, the embodiments of the present disclosure have been described. Needless to say, the present disclosure is not limited to the above embodiments and can take various forms.

[0065] (3a) As a method for manufacturing the case or cover, not limited to casting, other methods may be adopted. For example, insert molding of die casting may be adopted. Specifically, a member to be a fin prepared in advance may be arranged in a mold for manufacturing the case, and molten metal may be injected into the mold to manufacture a case integrated with the fin. Alternatively, fins may be joined to the surface of the case by welding or the like.

[0066] (3b) The shape of the fin is a right triangle, but other than the right triangle itself, any shape that can be substantially regarded as a right triangle is acceptable. That is, any shape that can obtain suitable longitudinal vortices as obtained by the right triangular fins and is substantially in the shape of a right triangle is acceptable.

[0067] For example, a shape in which the hypotenuse or the vertical side is slightly curved inside or outside the right triangle or has unevenness may be acceptable. In this case, as the degree of protrusion or depression from the hypotenuse or the vertical side of the curvature or unevenness, for example, a range of ±5% of the length of the hypotenuse or the vertical side can be adopted.

[0068] In a right triangle, the angle of the perpendicular side with respect to the base is a right angle, but a range that can be substantially regarded as a right triangle may be adopted. For example, the angle of the perpendicular side with respect to the base can be 90° ± 2°.

[0069] (3c) The number of fins, the orientation of the fins (orientation on the upper surface in plan view), the inclination of the hypotenuse of the fins, etc. are not limited to the above embodiments. Also, the sizes of the fins (dimensions of the base viewed from the thickness direction and height) may be the same or different.

[0070] (3d) As the upper surface of the main body portion, a flat shape (flat plane) can be adopted, but the height may vary depending on the location. That is, in the upper surface shape, it is sufficient if the shape viewed from the thickness direction has at least a right triangle portion on the upper side. Note that the portion of the apex T2 of the right triangle may have a rounded shape.

[0071] (3e) A plurality of functions of one component in each of the above embodiments may be realized by a plurality of components, or one function of one component may be realized by a plurality of components. Also, a plurality of functions of a plurality of components may be realized by one component, or one function realized by a plurality of components may be realized by one component. Further, a part of the configuration of each of the above embodiments may be omitted. Also, at least a part of the configuration of each of the above embodiments may be added to or replaced with the configuration of other embodiments.

Description of Reference Numerals

[0072] 1, 41... Electronic control device, 3... Housing (housing for electronic control device), 25... Upper surface, 29... Fin (protrusion), M1... First surface, M2... Second surface, H2... Hypotenuse, H3... Vertical side (perpendicular side)

Claims

1. A housing (9) for an electronic control device that houses a heat-generating component, wherein a protruding portion (29) that protrudes outward is provided on an outer surface (25) of the housing, the protruding portion includes a first surface (M1) facing a first direction and a second surface facing a second direction (M2) perpendicular to the first direction, the shapes of the first surface and the second surface are in the shape of a right triangle having a side (H3) extending vertically from the surface and a hypotenuse (2), A housing for an electronic control device.

2. The housing for an electronic control device according to Claim 1, wherein the protruding portion is plate-shaped, A housing for an electronic control device.

3. A housing (9) for an electronic control device that houses a heat-generating component, wherein a plate-shaped protruding portion (29) that protrudes outward is provided on an outer surface (25) of the housing, the shape of the protruding portion as viewed from the thickness direction is in the shape of a right triangle having a side (H3) extending vertically from the surface and a hypotenuse (H2), A housing for an electronic control device.

4. The housing for an electronic control device according to Claim 3, the protruding portion includes a first surface (M1) facing a first direction and a second surface (M2) facing a second direction perpendicular to the first direction, the first surface and the second surface have the shape of the right triangle, A housing for an electronic control device.

5. The housing for an electronic control device according to Claim 1, wherein the protruding portion is higher on the inner side than on the outer peripheral side on the surface, A housing for an electronic control device.

6. The housing for an electronic control device according to Claim 1, wherein the protruding portion becomes thinner toward the higher side in height, A housing for an electronic control device.

7. The housing for an electronic control device according to Claim 1, wherein the protruding portion is arranged on the outer peripheral side on the surface, A housing for an electronic control device.

8. The housing for an electronic control device according to Claim 7, wherein a heat dissipation part (43) that is columnar or plate-shaped and has the same shape in the height direction is arranged on the inner side of the outer peripheral side on the surface of the protruding portion, A housing for an electronic control device.

9. The housing for an electronic control device according to Claim 8, when wind flows through the protruding portion, the heat dissipation part is arranged on the downstream side of the wind, A housing for an electronic control device.

10. The housing for an electronic control device according to Claim 1, wherein the housing and the protruding portion are integrally formed, A housing for an electronic control device.

11. An electronic control device (1) comprising the heat-generating component in the housing for the electronic control device according to any one of claims 1 to 10. Electronic control device (1).

12. The electronic control device according to claim 11, wherein when disposed in a space where air flows in a predetermined direction, the portion having the right-angled triangle shape of the protrusion is disposed obliquely with respect to the flow of the air, and the hypotenuse side of the right-angled triangle is disposed on the upstream side of the air flow, and the side of the vertically extending side of the right-angled triangle is disposed on the downstream side of the air flow from the hypotenuse side. Electronic control device.

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