Electronic control device

Abstract

To provide an electronic control device in which the fixing force of a wiring board is improved.SOLUTION: An electronic control device 100 includes a wiring board 11, a bag-shaped case 20 that houses the wiring board and has one open end, a cover 40 that closes the opening of the bag-shaped case, and a movable pole 30 that fixes the wiring board in the thickness direction of the wiring board. The bag-shaped case is provided with a support portion 26 that supports the wiring board and a through-hole 21h that penetrates in the thickness direction at a position facing the wiring board. The movable pole is slidably disposed in the through-hole, and when the cover is assembled to the bag-shaped case, the movable pole is pressed against the wiring board by the cover, sandwiching and fixing the wiring board together with the support portion.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to electronic control devices. [Background technology]

[0002] As disclosed in Patent Document 1, there is a configuration that includes a board and a housing that houses the board. The housing includes a case and a cover. The case has protrusions that position and support the board, a board support that supports the board from below, and fixing holes for fixing the cover. When attached to the case, the cover has a board holder in a position that corresponds to the board support of the case. The board is then sandwiched and fixed between the board support of the case and the board holder of the cover. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 8-153981 Summary of the Invention [Problem to be solved by the invention]

[0004] The housing for accommodating the wiring board may include a bag-shaped case and a cover that closes the opening of the bag-shaped case. The bag-shaped case has an opening facing the side wall of the wiring board. In this configuration, even if the bag-shaped case has a board support and the cover has a board press, there is a risk that the wiring board may not be held in place sufficiently.

[0005] One disclosed object is to provide an electronic control device with improved fixing strength for a wiring board. [Means for solving the problem]

[0006] The electronic control device disclosed herein comprises: A wiring board (11), a bag-like case (20, 20a, 20b) that houses a wiring board and has one open end; a cover (40) that closes the opening of the bag-shaped case; a fixing member (30) for fixing the wiring board in the thickness direction of the wiring board; The bag-shaped case is provided with a support portion (26, 30a) for supporting the wiring board at a position facing the wiring board, and a through-hole (21h) penetrating in the thickness direction of the case, The fixing member is slidably disposed in the through hole, and when the cover is attached to the bag-shaped case, the fixing member is pressed against the wiring board by the cover, sandwiching and fixing the wiring board together with the support portion.

[0007] In this way, the electronic control device includes a fixing member that is pressed against the wiring board by the cover when the cover is attached to the bag-shaped case, and that sandwiches and fixes the wiring board together with the support part, thereby improving the fixing force of the electronic control device to the wiring board.

[0008] The various aspects disclosed in this specification employ different technical means to achieve their respective objectives. The reference numerals in parentheses in the claims and in this section are intended to exemplify correspondences with the following embodiments and are not intended to limit the technical scope. The objectives, features, and advantages disclosed in this specification will become more apparent by reference to the following detailed description and the accompanying drawings. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view showing a schematic configuration of an electronic control device according to a first embodiment. [Figure 2] FIG. 2 is a cross-sectional view taken along line II-II in FIG. [Figure 3] FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2. [Figure 4] FIG. 2 is an enlarged perspective view showing a schematic configuration of a movable pole portion. [Figure 5] FIG. 10 is a cross-sectional view showing a schematic configuration of an electronic control device according to a second embodiment. [Figure 6] FIG. 10 is a cross-sectional view showing a schematic configuration of an electronic control device according to a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, several embodiments for carrying out the present disclosure will be described with reference to the drawings. In each embodiment, parts corresponding to matters described in the preceding embodiment may be assigned the same reference numerals, and duplicated explanations may be omitted. In each embodiment, when only a part of the configuration is described, the other parts of the configuration can be applied by referring to the other embodiment described earlier. In the following, three mutually orthogonal directions are referred to as the X-axis, Y-axis, and Z-axis.

[0011] (First embodiment) An electronic control device 100 according to this embodiment will be described with reference to Figures 1 to 4. As shown in Figures 1 and 2, the electronic control device 100 includes a circuit board 10, a bag-shaped case 20, a movable pole 30, and a cover 40.

[0012] The electronic control device 100 is configured to be mountable on, for example, a mobile object. Examples of the mobile object include vehicles such as electric cars, hybrid cars, and fuel cell cars, flying objects such as electric vertical take-off and landing aircraft and drones, ships, construction machinery, agricultural machinery, etc. However, the electronic control device 100 can also be mounted on devices other than mobile objects.

[0013] <Circuit board> 2, circuit board 10 includes wiring board 11, and electronic components 12 and connectors 13 mounted on wiring board 11. Wiring board 11 has conductive wiring provided on an electrically insulating base material. Wiring board 11 is a so-called printed wiring board.

[0014] The wiring board 11 has one surface S1 and an opposite surface S2 of the surface S1. The surface S1 and the opposite surface S2 have, for example, a rectangular shape. The surface S1 and the opposite surface S2 are connected to four side surfaces. The surface S1 and the opposite surface S2 are surfaces along the XY plane. The distance between the surface S1 and the opposite surface S2 corresponds to the plate thickness. The plate thickness is the thickness along the Z axis. The direction along the plate thickness can also be referred to as the plate thickness direction. The plate thickness direction coincides with the Z axis direction. The XY plane is an imaginary plane defined by the X axis and the Y axis.

[0015] The wiring board 11 has wiring patterns formed by patterning a conductive thin film (such as copper foil) and metal plating that forms through holes as wiring. In addition, a portion of the wiring includes electrode connection portions to which electrodes of the electronic components 12 and terminals of the connector 13 are connected. The electrode connection portions can also be called pads or lands. Note that the wiring board 11 can be a multilayer board in which wiring patterns are stacked via a base material.

[0016] In this embodiment, as an example, a wiring board 11 is used, on which a ground wiring 1 that is part of a wiring pattern is provided. A part of the ground wiring 1 is exposed on one surface S1. In addition, the ground wiring 1 is exposed on the wiring board 11 at a position where it comes into contact with a movable pole 30, which will be described later.

[0017] The electronic components 12 are circuit elements such as microcomputers, semiconductor switching elements, resistors, capacitors, and coils. The electronic components 12 have electrodes. The electrodes of the electronic components 12 are electrically connected to electrode connection portions via solder or the like. The electronic components 12 are mounted on one surface S1 and the opposite surface S2. The circuit board 10 forms a circuit by electrically connecting the wiring and the electronic components 12. It is sufficient that the electronic components 12 are mounted on at least one of the one surface S1 and the opposite surface S2.

[0018] The connector 13 is used to connect the electronic control device 100 to an external device. The connector 13 includes conductive connector terminals and a connector case that holds the connector terminals. The connector terminals are electrically connected to electrode connection portions via solder or the like. The connector 13 is mounted on one surface S1. The external device may be a device to be controlled by the electronic control device 100 or another electronic control device. The connector 13 may also be mounted on the opposite surface S2.

[0019] <Case> 1 to 4, the housing includes a bag-shaped case 20, a movable pole 30, and a cover 40. The bag-shaped case 20 and the cover 40 are assembled together to form a storage space for storing the wiring board 11. The cover 40 is fixed to the bag-shaped case 20 with screws, a snap-fit ​​mechanism, or the like.

[0020] The state in which the bag-shaped case 20 and the cover 40 are assembled is also simply referred to as the assembled state. Also, the state in which the bag-shaped case 20 and the cover 40 are not assembled is also simply referred to as the non-assembled state.

[0021] The bag-shaped case 20 and the cover 40 accommodate the electronic component 12 in addition to the wiring board 11. It can also be said that the bag-shaped case 20 and the cover 40 accommodate the circuit board 10 with a portion of the connector 13 exposed to the external space. The external space is the space surrounding the housing. Therefore, the external space and the accommodation space are separated by the housing.

[0022] The bag-shaped case 20 and the cover 40 are primarily made of a metal such as aluminum. That is, the bag-shaped case 20 and the cover 40 are electrically conductive. However, the present disclosure is not limited to this. The bag-shaped case 20 and the cover 40 may also be primarily made of an electrically insulating material.

[0023] As shown in Figures 2 and 3, the bag-shaped case 20 houses the wiring board 11 and is open at one end. The bag-shaped case 20 has a case upper wall portion 21, a case lower wall portion 22, case side walls 23 and 24, and a case bottom portion 25. The case upper wall portion 21 and the case lower wall portion 22 are disposed opposite to each other. The case upper wall portion 21 is a wall portion facing one surface S1. The case lower wall portion 22 is a wall portion facing the opposite surface S2.

[0024] The case upper wall 21 and the case lower wall 22 are provided so as to be continuous with the case side walls 23 and 24 and the case bottom 25. The case side wall 23 and the case side wall 24 are arranged opposite each other. The bag-shaped case 20 has an opening that faces the case bottom 25. The case upper wall 21, the case lower wall 22, and the case side walls 23 and 24 have an accommodation surface S11 on the accommodation space side and an outer surface S12 on the exterior space side.

[0025] The bag-shaped case 20 is provided with a support portion 26 that supports the wiring board 11 and a through-hole 21h that penetrates in the thickness direction of the case, at a position facing the wiring board 11. The through-hole 21h is provided in the case upper wall portion 21. That is, the through-hole 21h is provided at a position facing one surface S1. The case upper wall portion 21 is provided from the storage surface S11 to the outer surface S12. The through-hole 21h is a hole in which a movable pole 30, which will be described later, is disposed.

[0026] The support portion 26 is provided on the case bottom wall portion 22. In other words, the support portion 26 is provided at a position facing the opposite surface S2. The support portion 26 is a portion that protrudes from the storage surface S11 of the case bottom wall portion 22. The support portion 26 can also be said to be a portion that protrudes more than the periphery of the support portion 26. The support portion 26 is a portion that supports the circuit board 10. The support portion 26 has a support surface S3 at its tip. The support surface S3 is a surface that comes into contact with the opposite surface S2 of the circuit board 10.

[0027] Guide portions 27a and 27b are provided on case bottom 25. Guide portion 27a and guide portion 27b are portions that guide wiring board 11 when wiring board 11 is accommodated in bag-shaped case 20. Guide portions 27a and 27b are portions that protrude from accommodation surface S11 on case bottom 25. Also, guide portions 27a and 27b can be said to be portions that protrude further than the peripheries of guide portions 27a and 27b. Guide portion 27a and guide portion 27b are provided in pairs. Guide portion 27a and guide portion 27b are provided with a gap therebetween that is approximately the same as the thickness of wiring board 11.

[0028] As shown in Figures 1, 2, and 3, the cover 40 is a member that closes the opening of the bag-shaped case 20. The cover 40 has a cover upper wall portion 41, a cover lower wall portion 42, cover side wall portions 43 and 44, and a cover bottom portion 45. The cover upper wall portion 41 and the cover lower wall portion 42 are arranged opposite each other. The cover upper wall portion 41 and the cover lower wall portion 42 are provided so as to be continuous with the cover side wall portions 43 and 44 and the cover bottom portion 45. The cover side wall portion 43 and the cover side wall portion 44 are arranged opposite each other. The cover 40 has an opening that faces the cover bottom portion 45.

[0029] A connector opening 45h, which is a through-hole, is provided in the cover bottom 45. The connector 13 is placed in the connector opening 45h in the assembled state.

[0030] The cover upper wall portion 41, the cover lower wall portion 42, the cover side walls 43 and 44, and the cover bottom portion 45 have an inner peripheral surface S7 that faces the storage space. The cover upper wall portion 41, the cover lower wall portion 42, and the cover side walls 43 and 44 have an opening surface S6 that surrounds the opening.

[0031] 2 and 3, cover upper wall 41 is disposed opposite case upper wall 21 in the assembled state. Cover lower wall 42 is disposed opposite case lower wall 22 in the assembled state. Cover side wall 43 is disposed opposite case side wall 23 in the assembled state. Cover side wall 44 is disposed opposite case side wall 24 in the assembled state. Cover bottom 45 is disposed opposite case bottom 25 with wiring board 11 or the like interposed therebetween in the assembled state.

[0032] 2, in order to make it easier to understand the boundary between the bag-shaped case 20 and the cover 40, a gap is shown between the case lower wall portion 22 and the cover lower wall portion 42. However, the case lower wall portion 22 and the cover lower wall portion 42 are in contact with each other.

[0033] The movable pole 30 will be described with reference to Figures 2, 3, and 4. The movable pole 30 is a member that fixes the wiring board 11 in the thickness direction. The movable pole 30 is mainly made of a metal such as aluminum. In other words, the movable pole 30 is conductive. The movable pole 30 corresponds to a fixing member.

[0034] The movable pole 30 has an inclined portion 32 provided on a base 31. The base 31 has a pressing surface S4 at one end in the Z direction and a contact surface S5 at the other end. The pressing surface S4 is the surface that contacts the one surface S1 in the assembled state. The contact surface S5 is the surface that contacts the inner peripheral surface S7 in the assembled state. Therefore, the pressing surface S4 can also be said to be the end surface on the wiring board 11 side. On the other hand, the contact surface S5 can also be said to be the end surface on the cover 40 side.

[0035] The movable pole 30 is a quadrangular prism-shaped member having an inclined portion 32. The inclined portion 32 is provided on the movable pole 30 on the opening side of the bag-shaped case 20 in the Y direction. The inclined portion 32 is also provided on the movable pole 30 on the contact surface S5 side in the Z direction.

[0036] The inclined portion 32 is inclined with respect to a surface of the base 31 along the XZ plane. The base 31 is provided with the inclined portion 32 such that the thickness in the Y direction gradually decreases toward the contact surface S5 within a predetermined range from the contact surface S5 in the Z direction. The inclined portion 32 is provided so as not to be exposed to the accommodation space in the assembled state. The XZ plane is an imaginary plane defined by the X axis and the Z axis.

[0037] As described above, the movable pole 30 is provided with the inclined portion 32. Therefore, the contact surface S5 has a smaller area than the pressing surface S4.

[0038] The movable pole 30 is slidably arranged in the through hole 21h. That is, the movable pole 30 is movable in the Z direction within the through hole 21h in an unassembled state. Therefore, the opening area of ​​the through hole 21h is approximately the same as the outer periphery of the movable pole 30.

[0039] In the assembled state, the movable pole 30 is pressed by the cover 40 in the plate thickness direction and is in contact with the wiring board 11 and the cover 40. That is, in the assembled state, the movable pole 30 is pressed by the cover 40 in the direction of the white arrow. Therefore, in the assembled state, the movable pole 30 presses the wiring board 11 in the direction of the white arrow. Therefore, stress is applied to the wiring board 11 from the movable pole 30. In addition, in the assembled state, the movable pole 30 is pressed against the wiring board 11 by the cover 40, and sandwiches and fixes the wiring board 11 together with the support part 26.

[0040] In this way, in the assembled state, the wiring board 11 is in contact with both the support portion 26 and the movable pole 30. The portion of the wiring board 11 that is in contact with the movable pole 30 is also referred to as the first contact portion. The portion of the wiring board 11 that is in contact with the support portion 26 is also referred to as the second contact portion. The first contact portion is a portion of one surface S1. The second contact portion is a portion of the opposite surface S2.

[0041] In this embodiment, as an example, a configuration is adopted in which, in an assembled state, the pressing surface S4 of the movable pole 30 contacts the ground wiring 1. In other words, the through hole 21h and the movable pole 30 are arranged to face the ground wiring 1 in the Z direction. This strengthens the ground of the circuit board 10 in the electronic control device 100, thereby improving the EMC resistance. Note that the ground wiring 1 is omitted from FIG. 3.

[0042] The wiring board 11 may have the ground wiring 1 exposed on the opposite surface S2. In the electronic control device 100, the support portion 26 may be in contact with the ground wiring 1 in addition to the movable pole 30. This improves the EMC resistance of the electronic control device 100.

[0043] The EMC resistance of the electronic control device 100 can be improved by having at least one of the movable pole 30 and the support portion 26 in contact with the ground wiring 1. However, the support portion 26 and the movable pole 30 do not have to be in contact with the ground wiring 1.

[0044] As shown in FIG. 2, the movable pole 30 is disposed in a region facing the support portion 26 in the plate thickness direction. That is, the first contact portion and the second contact portion are located at the same position in the X-axis direction and at the same position in the Y-axis direction. The first contact portion and the second contact portion are located at different positions in the Z-axis direction. It can also be said that the electronic control device 100 sandwiches the wiring board 11 at the same point between the support portion 26 and the movable pole 30. In this embodiment, it is sufficient that at least a portion of the movable pole 30 is disposed in a region facing the support portion 26 in the plate thickness direction.

[0045] The first contact portion and the second contact portion can be set at a portion where wiring board 11 is likely to vibrate or where vibration is large. The portion where wiring board 11 is likely to vibrate or where vibration is large can also be called a vibrating portion. The vibrating portion can be identified in advance by experiments, simulations, etc.

[0046] This allows the electronic control device 100 to sandwich the vibrating portion of the wiring board 11 between the support portion 26 and the movable pole 30. Therefore, the electronic control device 100 has a stronger fixing force to the wiring board 11 than a configuration in which the vibrating portion is not sandwiched. As a result, the electronic control device 100 can suppress movement of the wiring board 11 due to vibration of the wiring board 11.

[0047] The movable pole 30 may have other shapes. For example, a cylindrical movable pole 30 having an inclined portion 32 may also be used. In addition, in this embodiment, as an example, the electronic control device 100 is used which includes one movable pole 30. However, it is sufficient that the electronic control device 100 includes at least one movable pole 30. Therefore, the electronic control device 100 may include two or more movable poles 30.

[0048] Furthermore, at least one of the movable pole 30 and the support portion 26 may be made of an elastic material. This allows the electronic control device 100 to prevent excessive stress from being applied to the wiring board 11. Furthermore, the electronic control device 100 does not need to increase the dimensional accuracy of the support portion 26 and the movable pole 30 in the Z direction more than necessary.

[0049] <Manufacturing method> Here, a description will be given of a manufacturing method for the electronic control unit 100. The manufacturing method can also be said to be a method for assembling the electronic control unit 100.

[0050] First, the circuit board 10 is inserted into the storage space of the bag-shaped case 20. The circuit board 10 is inserted so as to be disposed between the guide portions 27a and 27b while contacting the support surface S3 of the support portion 26. At this time, the movable pole 30 is not disposed in the through-hole 21h.

[0051] Then, with the circuit board 10 inserted into the storage space of the bag-shaped case 20, the movable pole 30 is inserted into the through-hole 21h. At this time, the movable pole 30 is inserted so that the pressing surface S4 faces the wiring board 11. The pressing surface S4 is just in contact with one surface S1 of the wiring board 11.

[0052] Thereafter, the cover 40 is attached so as to close the opening of the bag-shaped case 20. The bag-shaped case 20 and the cover 40 are moved relatively in the Y direction so as to approach each other. For example, the cover 40 is moved while the bag-shaped case 20 is fixed.

[0053] The cover 40 moves while the corners of the opening surface S6 and the inner peripheral surface S7 come into contact with the inclined portion 32 of the movable pole 30. As a result, the movable pole 30 is pressed in the direction of the outline arrow. The movable pole 30 is then pressed against the wiring board 11, and together with the support portion 26, the wiring board 11 is sandwiched and fixed.

[0054] <Effects> In this way, the electronic control device 100 includes the movable pole 30, which is pressed against the wiring board 11 by the cover 40 in the assembled state and sandwiches and fixes the wiring board 11 together with the support portion 26. This improves the fixing force of the electronic control device 100 to the wiring board 11. Furthermore, stress is applied to the wiring board 11 from both the one surface S1 side and the opposite surface S2 side. This can be said to improve the fixing force of the electronic control device 100 to the wiring board 11.

[0055] Furthermore, the movable pole 30 is pressed by the cover 40. Therefore, the movable pole 30 can easily continuously press the wiring board 11. Furthermore, since the electronic control device 100 presses the wiring board 11 with the movable pole 30, it is easy to fix the wiring board 11 even if the wiring board 11 is distorted or warped.

[0056] The preferred embodiments of the present disclosure have been described above. However, the present disclosure is not limited to the above embodiments, and various modifications are possible within the scope of the present disclosure. Below, the second and third embodiments will be described as other aspects of the present disclosure. The above embodiments, the second and third embodiments, and the third embodiment can be implemented independently, or can be implemented in appropriate combinations. The present disclosure is not limited to the combinations shown in the embodiments, and can be implemented in various combinations.

[0057] (Second embodiment) An electronic control device 100a of the second embodiment will be described using Fig. 5. Here, differences between the electronic control device 100a and the electronic control device 100 will be mainly described. The electronic control device 100a differs from the electronic control device 100 mainly in that the support portion 30a is configured to be slidable. Fig. 5 is a cross-sectional view corresponding to Fig. 2.

[0058] 5, the bag-shaped case 20a is provided with an arrangement hole 22h that penetrates in the thickness direction and into which the support portion 30a is arranged. The arrangement hole 22h is a hole similar to the through-hole 21h.

[0059] The support portion 30a is configured in the same manner as the movable pole 30. The support portion 30a has a base portion 31a, an inclined portion 32a, a support surface S3, and a contact surface S8. The support portion 30a is slidably arranged in the arrangement hole 22h. In the assembled state, the support surface S3 contacts the opposite surface S2. In addition, in the assembled state, the contact surface S8 contacts the inner circumferential surface S7.

[0060] In the assembled state, the movable pole 30 presses the wiring board 11 in the direction opposite to the direction of the outline arrow. In the assembled state, the support portion 30a contacts the cover 40 and the wiring board 11, sandwiching and fixing the wiring board 11 together with the movable pole 30. The electronic control device 100a can achieve the same effects as the electronic control device 100.

[0061] (Third embodiment) An electronic control device 100b of the third embodiment will be described using Fig. 6. Here, the differences between the electronic control device 100b and the electronic control device 100 will be mainly described. The electronic control device 100b differs from the electronic control device 100 mainly in the positional relationship between the support portion 26 and the movable pole 30. Fig. 6 is a cross-sectional view corresponding to Fig. 2.

[0062] As shown in Fig. 6, the bag-shaped case 20b has the support portion 26 provided outside the opposing area of ​​the movable pole 30. Therefore, the movable pole 30 is disposed at a position outside the opposing area of ​​the support portion 26 in the plate thickness direction. It can also be said that the movable pole 30 and the support portion 26 are not disposed opposite each other in the Z direction. Therefore, the first contact portion and the second contact portion are positioned differently in the Z axis direction. Furthermore, the first contact portion and the second contact portion are also positioned differently in at least one of the X axis direction and the Y axis direction.

[0063] The electronic control device 100b can achieve the same effects as the electronic control device 100. Furthermore, the electronic control device 100b can mount the electronic components 12 in the opposing area of ​​the movable pole 30 and the opposing area of ​​the support portion 26. That is, as shown in FIG. 6 , the wiring board 11 can mount the electronic components 12 in the opposing area of ​​the movable pole 30 on the opposite surface S2. Similarly, the wiring board 11 can also mount the electronic components 12 in the opposing area of ​​the support portion 26 on the one surface S1. Therefore, the electronic control device 100b can improve the degree of freedom in arranging the electronic components 12 on the wiring board 11 compared to the electronic control device 100.

[0064] Although the present disclosure has been described with reference to the embodiments, it is understood that the present disclosure is not limited to the embodiments or structures. The present disclosure also encompasses various modifications and modifications within the scope of equivalents. In addition, although various combinations and forms are shown in the present disclosure, other combinations and forms including only one element, more, or less than one element are also within the scope and spirit of the present disclosure. [Explanation of symbols]

[0065] 10...circuit board, 1...ground wiring, 11...wiring board, 12...electronic component, 13...connector, 20...bag-shaped case, 21h...through hole, 26...support portion, 30...movable pole, 32...inclined portion, 40...cover, 45h...opening for connector, 100, 100a, 100b...electronic control device

Claims

1. A wiring board (11), a bag-shaped case (20, 20a, 20b) that houses the wiring board and has one open end; a cover (40) that closes the opening of the bag-shaped case; a fixing member (30) that fixes the wiring board in the thickness direction of the wiring board, The bag-shaped case is provided with a support portion (26, 30a) for supporting the wiring board at a position facing the wiring board, and a through hole (21h) penetrating in the plate thickness direction, The fixing member is arranged in a slidable state in the through hole, and when the cover is assembled to the bag-shaped case, the fixing member is pressed against the wiring board by the cover, thereby sandwiching and fixing the wiring board together with the support portion.

2. 2. The electronic control device according to claim 1, wherein the bag-shaped case includes guide portions (27a, 27b) for guiding the wiring board when the wiring board is housed therein.

3. the wiring board has a ground wiring exposed at a position where the fixing member comes into contact; 3. The electronic control device according to claim 1, wherein at least one of the fixing member and the support portion is conductive and is in contact with the ground wiring.

4. 3. The electronic control device according to claim 1, wherein at least one of the fixing member and the support portion is made of an elastic member.

5. The electronic control device according to claim 1 or 2, wherein the fixing member is disposed in an area facing the support portion in the plate thickness direction.

6. The electronic control device according to claim 1 or 2, wherein the fixing member is disposed at a position outside a region facing the support portion in the plate thickness direction.

7. The bag-shaped case is provided with an arrangement hole (22h) that is a hole in which the support portion is arranged and penetrates in the plate thickness direction, The electronic control device according to claim 1 or 2, wherein the support portion is slidably arranged in the arrangement hole, and when the cover is assembled to the bag-shaped case, the support portion contacts the cover and the wiring board, and clamps and fixes the wiring board together with the fixing member.

Images