Electronic control device, fixing member, and manufacturing method

Abstract

To provide an electronic control device with improved fixing force for fixing a wiring board.SOLUTION: An electronic control device includes a wiring board 10, a housing that houses the wiring board 10, and a fixing member 50 that fixes the wiring board 10 to the housing. The fixing member 50 includes a board fixing portion 52 that is fixed to the wiring board 10, a housing fixing portion 53 that is fixed to the housing, and a main body portion 51 that is connected to the board fixing portion 52 and the housing fixing portion 53. The main body portion 51 of the fixing member 50 is in contact with both the wiring board 10 and the housing.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to an electronic control device, a fixing member, and a manufacturing method. [Background technology]

[0002] Patent Document 1 discloses an electronic device including a circuit board and a housing that houses the circuit board. The housing is equipped with a snap fit. The circuit board is housed in the housing and held in place by the snap fit. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-179103 Summary of the Invention [Problem to be solved by the invention]

[0004] In Patent Document 1, the circuit board is held in the housing by a snap fit, which means that the fixing force of the circuit board may be reduced due to deformation of the circuit board caused by vibration or temperature changes.

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

[0006] The electronic control device disclosed herein comprises: A wiring board (10, 10a, 10b), a housing (20) for accommodating a wiring board; and fixing members (50, 50a, 50b) for fixing the wiring board to the housing, The fixing member has a first fixing portion (52) fixed to the wiring board, a second fixing portion (53) fixed to the housing, and a main body portion (51) connected to the first fixing portion and the second fixing portion, and the main body portion is in contact with both the wiring board and the housing.

[0007] In this way, in the electronic control device, the fixing member is fixed to the wiring board and the housing, and the main body of the fixing member is in contact with both the wiring board and the housing, thereby improving the fixing force with which the fixing member fixes the wiring board in the electronic control device.

[0008] The electronic control device disclosed herein comprises: A wiring board (10, 10a), a housing member (20c, 30c) for housing a wiring board; a fixing member (50c) for fixing the wiring board to the housing member, the fixing member includes a first fixing portion (52) fixed to the wiring board, a second fixing portion (54c) fixed to the housing member, and a main body portion (51c) connected to the first fixing portion and the second fixing portion; The second fixing portion is fixed to the housing member by a screw (60).

[0009] In this way, in the electronic control device, the fixing member is fixed to the housing member by the screw, which improves the fixing force with which the fixing member fixes the wiring board.

[0010] The fixing member disclosed herein comprises: A fixing member for fixing a wiring board to a housing, The device comprises a first fixing portion (52) fixed to the wiring board, a second fixing portion (53) fixed to the housing, and a main body portion (51) connected to the first fixing portion and the second fixing portion, and the main body portion is arranged so as to contact both the wiring board and the housing.

[0011] In this way, the fixing member is fixed to the wiring board and the housing, and the main body of the fixing member is in contact with both the wiring board and the housing, thereby improving the fixing force of the fixing member to fix the wiring board.

[0012] The manufacturing method disclosed herein comprises: A method for manufacturing an electronic control device including a wiring board (10, 10a), a housing (20) that houses the wiring board, and a fixing member (50, 50a, 50b) that fixes the wiring board to the housing, comprising: a first mounting step (t1) of mounting a first fixing portion (52) of the fixing member on one surface (S11) of the wiring board; a second mounting step (t2) of mounting a second fixing portion (53) of the fixing member to the housing by pressing from the opposite surface (S12) of the wiring board after the first mounting step, In the second mounting step, the main body portion (51) of the fixing member, which is connected to the first fixing portion and the second fixing portion, is pressed against the wiring board and the housing, respectively.

[0013] In this way, the manufacturing method presses the main body of the fixing member against the wiring board and the housing, respectively, thereby manufacturing an electronic control device in which the fixing member has improved fixing force for fixing the wiring board.

[0014] 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]

[0015] [Figure 1] 1 is a cross-sectional view showing a schematic configuration of an electronic control device according to a first embodiment. [Figure 2] FIG. 2 is an enlarged view of part II in FIG. [Figure 3] FIG. 3 is a cross-sectional view showing a schematic configuration of a fixing member. [Figure 4] FIG. 4 is a plan view taken from the direction IV in FIG. 3. [Figure 5] FIG. 4 is a plan view from the V direction in FIG. [Figure 6] 5A to 5C are cross-sectional views illustrating a first mounting step of the electronic control device. [Figure 7] 5A to 5C are cross-sectional views illustrating a second mounting step of the electronic control device. [Figure 8] 5A to 5C are cross-sectional views illustrating steps in an assembly process of the electronic control device. [Figure 9] FIG. 4 is an enlarged cross-sectional view showing a first mounting step of the electronic control device. [Figure 10] FIG. 10 is an enlarged cross-sectional view showing the start of a second mounting step of the electronic control device. [Figure 11] FIG. 10 is an enlarged cross-sectional view showing the electronic control device at the end of a second mounting step. [Figure 12] FIG. 10 is a cross-sectional view showing a schematic configuration of a fixing member in a second embodiment. [Figure 13] FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. 12. [Figure 14] FIG. 10 is a cross-sectional view showing a schematic configuration of a wiring board according to a third embodiment. [Figure 15] FIG. 10 is a plan view showing a schematic configuration of an electronic control device according to a fourth embodiment. [Figure 16] 16 is a cross-sectional view taken along line XVI-XVI in FIG. 15 at the end of the second mounting step. [Figure 17] FIG. 10 is a plan view showing a schematic configuration of an electronic control device according to a fifth embodiment. [Figure 18] 18 is a cross-sectional view taken along line XVIII-XVIII in FIG. 17 at the end of a second mounting step. [Figure 19] FIG. 10 is a cross-sectional view showing a schematic configuration of an electronic control device according to a sixth embodiment. [Figure 20] FIG. 13 is an enlarged cross-sectional view showing a schematic configuration of a fixing member in a sixth embodiment. [Figure 21] FIG. 13 is a cross-sectional view showing a schematic configuration of a fixing member according to a seventh embodiment. [Figure 22] FIG. 22 is a plan view taken from the direction XXII in FIG. 21. [Figure 23] FIG. 13 is a cross-sectional view showing a schematic configuration of an electronic control device according to an eighth embodiment. [Figure 24] FIG. 24 is a cross-sectional view taken along line XXIV-XXIV in FIG. 23. DETAILED DESCRIPTION OF THE INVENTION

[0016] 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 may be applied by referring to the other embodiment described previously.

[0017] (First embodiment) 1 to 11, an electronic control device 100 of this embodiment will be described. The electronic control device 100 includes a wiring board 10, a housing 20 that houses the wiring board 10, and a fixing member 50 that fixes the wiring board 10 to the housing 20. The state in which the wiring board 10 is housed in the housing 20 is also simply referred to as a housed state.

[0018] 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 may also be mounted on a device other than a mobile object.

[0019] <Wiring board> 1 and 2, wiring board 10 includes an electrically insulating base material 11 and a conductive wiring portion provided on base material 11. Wiring board 10 is provided with through holes 12, fixing holes 14, and the like. Wiring board 10 is a so-called printed wiring board. Note that base material 11 can also be called an insulating substrate.

[0020] The wiring board 10 has one surface S11 and an opposite surface S12 of the one surface S11. The one surface S11 and the opposite surface S12 are flat surfaces. Here, unevenness of the order of the thickness of the wiring portion is considered to be flat. The fixing member 50, which will be described later, comes into contact with the one surface S11. Therefore, at least the portion of the one surface S1 that comes into contact with the fixing member 50 is flat.

[0021] The through hole 12 includes a conductor portion 13 that surrounds the through hole and is provided from one surface S11 to the opposite surface S12. The conductor portion 13 is provided on the surface where the through hole is formed by plating or the like. The conductor portion 13 can also be called a through-hole conductor. The conductor portion 13 is part of the wiring portion.

[0022] The wiring portion includes a wiring pattern formed by patterning a conductive thin film (such as copper foil) in addition to the conductor portion 13. The wiring pattern includes a ground pattern, a power supply pattern, a signal pattern, etc. The wiring pattern may include pads and lands. The wiring pattern may be laminated via a base material 11. In other words, the wiring board 10 may be a multi-layer board. The ground pattern corresponds to a ground wiring.

[0023] Circuit elements such as a microcomputer, semiconductor switching elements, capacitors, resistors, and coils are mounted on the wiring board 10. Circuit elements are electrically connected via wiring portions to form circuits on the wiring board 10. Therefore, the wiring board 10 on which circuit elements are mounted can also be called a circuit board.

[0024] Furthermore, external connection terminals 40 are mounted on the wiring board 10. The external connection terminals 40 are made of a conductive material. The external connection terminals 40 are terminals for electrically connecting the wiring board 10 to an external device. The external connection terminals 40 include a rod-shaped terminal base 41 and a connection portion 42 provided on one end side of the terminal base 41. The external device is a device provided outside the electronic control device 100.

[0025] The terminal base 41 is a portion that becomes a male terminal. The terminal base 41 has a linear shape. The terminal base 41 is provided so as to protrude from the one surface S11 when the external connection terminal 40 is mounted on the wiring board 10. The terminal base 41 is also arranged within an opposing region of the one surface S11.

[0026] The terminal base 41 is provided so as to reach the outside of the housing 20 (housing base 21) in the housed state. Therefore, a connector for connecting to an external device is connected to the facing area of ​​one surface S11 of the electronic control device 100. The connector for connecting to an external device is also referred to as an external connector.

[0027] The connection portion 42 is a portion that is press-fitted into the through-hole 12. The connection portion 42 is press-fitted into the through-hole 12 and comes into contact with the conductor portion 13. Therefore, the external connection terminal 40 serves as a terminal for making an electrical connection. Furthermore, the connection portion 42 is elastically deformed when press-fitted into the through-hole 12. The external connection terminal 40 is held on the wiring board 10 by a restoring force generated by the elastic deformation of the connection portion 42. In this way, the external connection terminal 40 is mounted on the wiring board 10 and is provided from one surface S1 to the outside of the housing base 21.

[0028] External connection terminals 40 can also be considered press-fit connector terminals or press-fit terminals. Furthermore, connection portions 42 can also be considered press-fit portions. Therefore, external connection terminals 40 can also be considered to be mounted on wiring board 10 by a press-fit structure.

[0029] The external connection terminal 40 is not limited to the above. For example, the terminal base 41 may have a shape that protrudes from the surface S11 and is bent in a direction along the surface S11. In this case, the terminal base 41 is provided so as to reach the outside of the housing 20 from the side wall 22 side of the housing 20. Therefore, an external connector is connected to the area of ​​the electronic control device 100 that faces the side wall 22.

[0030] Furthermore, the external connection terminals 40 may be surface-mounted connector terminals, in which case the wiring board 10 does not need to have through holes 12 to which the external connection terminals 40 are connected.

[0031] As shown in FIG. 2, the fixing hole 14 is a hole into which a board fixing portion 52 of the fixing member 50, which will be described later, is inserted. The fixing hole 14 is a through hole provided from one surface S11 to the opposite surface S12. In this embodiment, as an example, an example is adopted in which a conductor portion 13 is provided on the surface of the through hole serving as the fixing hole 14. In other words, the fixing hole 14 can also be said to be a hole surrounded by the conductor portion 13. The fixing hole 14 and the conductor portion 13 can also be said to be a through hole 14. The conductor portion 13 surrounding the fixing hole 14 is electrically connected to, for example, a ground pattern.

[0032] Fixing holes 14 are provided in multiple locations on wiring board 10. For example, fixing holes 14 are provided in three or more corners of wiring board 10. However, the locations of fixing holes 14 are not particularly limited. Fixing holes 14 are omitted from FIG. 1 in order to be described using FIG. 2.

[0033] <Housing, cover> As shown in FIG. 1, the housing 20 is a member that houses the wiring board 10. The housing 20 includes a housing base 21 and an annular side wall 22 that is continuous with the housing base 21. In this embodiment, as an example, the housing 20 is made primarily of a metal such as aluminum or copper. However, the present disclosure can also be used with a housing 20 made primarily of resin. The housing base 21 corresponds to the opposing portion.

[0034] The housing base 21 has a housing surface S21 that faces the wiring board 10 in the housed state, and an outer surface S22 that is the opposite side of the housing surface S21. The housing surface S21 faces the one surface S11 in the housed state. A fixing member 50, which will be described later, comes into contact with the housing surface S21. Therefore, the housing surface S21 is flat at least in the area where the fixing member 50 comes into contact. In the present disclosure, unevenness on the order of manufacturing error is considered to be flat.

[0035] The housing base 21 is provided with a connector housing 23 and a terminal hole 24. The terminal hole 24 is a through-hole provided from the accommodation surface S21 to the outer surface S22. The terminal hole 24 is a hole in which a part of the external connection terminal 40 is disposed. The connector housing 23 is provided so as to surround the terminal hole 24 and the external connection terminal 40. An external connector is attached to the connector housing 23.

[0036] It can be said that the housing 20 includes the connector housing 23 as an integrated unit. However, the connector housing 23 may be attached as a separate unit to the housing 20. Furthermore, depending on the configuration of the external connection terminals 40, the housing 20 may not be provided with the connector housing 23 and the terminal holes 24.

[0037] As shown in FIG. 2, the housing base 21 is provided with a fixing hole 25. The fixing hole 25 is a hole into which a housing fixing portion 53 of a fixing member 50, which will be described later, is inserted. The fixing hole 25 is a bottomed hole recessed into the housing surface S21. Therefore, the fixing hole 25 can also be called a recess. The fixing hole 25 is provided, for example, at a position opposite the fixing hole 14. Note that the fixing hole 25 is omitted from FIG. 1 to avoid cluttering the drawing.

[0038] The side wall portion 22 protrudes, for example, from an end portion of the housing base portion 21. The side wall portion 22 is provided so as to surround the wiring board 10 housed in the housing 20. The housing 20 can also be said to be a box member having an opening in the area facing the housing base portion 21.

[0039] The cover 30 is attached to the side wall 22 so as to close the opening of the housing 20. The cover 30 faces the opposite surface S12 in the housed state. When the housing 20 and the cover 30 are attached to each other, they can be said to form a housing space that houses the wiring board 10.

[0040] <Fixing material> 2, 3, 4, and 5, the fixing member 50 will be described. The fixing member 50 is fixed to the wiring board 10 and also to the housing 20. The fixing member 50 is disposed between the wiring board 10 and the housing base 21.

[0041] The fixing member 50 includes a main body portion 51, a board fixing portion 52, and a housing fixing portion 53. The fixing member 50 is provided for each fixing hole portion 14. Therefore, the electronic control device 100 includes a plurality of fixing members 50.

[0042] 2 and 3, the main body 51 has a rectangular prism shape. The main body 51 has a substrate-facing surface S51 and a housing-facing surface S52, which is the surface opposite the substrate-facing surface S51. The substrate-facing surface S51 and the housing-facing surface S52 are flat surfaces. Note that the main body 51 is not limited to a rectangular prism shape and may be, for example, a cylindrical shape.

[0043] The main body 51 is provided with a substrate fixing portion 52 that protrudes from the substrate-facing surface S51 and a housing fixing portion 53 that protrudes from the housing-facing surface S52. The main body 51 is provided with two substrate fixing portions 52. Similarly, the main body 51 is provided with two housing fixing portions 53.

[0044] However, it is sufficient that the main body 51 is provided with at least one substrate fixing portion 52 and at least one housing fixing portion 53. Therefore, the main body 51 may be provided with three or more substrate fixing portions 52 and three or more housing fixing portions 53. Furthermore, the number of substrate fixing portions 52 and the number of housing fixing portions 53 may be different.

[0045] As shown in Figures 2, 3, and 5, the substrate fixing portion 52 is a portion that is fixed to the wiring board 10. The substrate fixing portion 52 has a press-fit mechanism. That is, the substrate fixing portion 52 is a portion that is press-fit into the fixing hole portion 14. The substrate fixing portion 52 is press-fit into the fixing hole portion 14 and comes into contact with the wiring board 10. More specifically, by being press-fit into the fixing hole portion 14, the substrate fixing portion 52 comes into contact with the conductor portion 13 that surrounds the fixing hole portion 14. Therefore, the substrate fixing portion 52 is electrically connected to the ground pattern of the wiring board 10.

[0046] Furthermore, the substrate fixing portion 52 is elastically deformed by being press-fitted into the fixing hole 14. The fixing member 50 is fixed (held) to the wiring substrate 10 by a restoring force generated by the elastic deformation of the substrate fixing portion 52. The substrate fixing portion 52 corresponds to a first fixing portion.

[0047] 2, 3, and 4, housing fixing portion 53 is a portion that is fixed to housing 20. Housing fixing portion 53 includes shaft portion 531 and claw portion 532 that protrudes relative to shaft portion 531. Housing fixing portion 53 is a portion that is inserted into fixing hole portion 25. Housing fixing portion 53 corresponds to the second fixing portion.

[0048] The fixing member 50 is primarily made of metal. That is, the substrate fixing portion 52 and the housing fixing portion 53 are primarily made of metal. The main body portion 51 is also primarily made of metal. The main body portion 51, the substrate fixing portion 52, and the housing fixing portion 53 may be made of the same material. For example, the main body portion 51, the substrate fixing portion 52, and the housing fixing portion 53 are configured as a single unit. In this embodiment, as an example, the fixing member 50 is made primarily of a metal such as aluminum or copper. The fixing member 50 can be manufactured by press working or the like.

[0049] However, the present disclosure can also be applied to a fixing member 50 whose main component is resin. Also, the fixing member 50 may be an assembly of a main body portion 51, a substrate fixing portion 52, and a housing fixing portion 53, which are provided separately.

[0050] As shown in Figures 3 and 4, shaft portion 531 has, for example, a rectangular prism shape. Shank portion 531 is provided with a plurality of claw portions 532. The direction in which shaft portion 531 protrudes from main body portion 51 can also be referred to as the protruding direction. The longitudinal direction of shaft portion 531 coincides with the protruding direction. Shank portion 531 is not limited to a rectangular prism shape, and may be, for example, a cylindrical shape.

[0051] The claw portions 532 are provided on the side walls of the shaft portion 531. In this embodiment, a fixing member 50 is used in which the claw portions 532 are provided on two side walls of the shaft portion 531. A plurality of claw portions 532 are provided on each side wall. In this embodiment, an example is used in which six claw portions 532 are provided on each shaft portion 531. However, the present disclosure is not limited to this. The claw portion 532 may be provided on only one side wall of the shaft portion 531. Also, only one claw portion 532 may be provided on each side wall.

[0052] The claw portion 532 has a shape that makes it easy to insert the housing fixing portion 53 into the fixing hole portion 25 and makes it difficult for the housing fixing portion 53 to come out of the fixing hole portion 25. For example, the claw portion 532 has a portion that is inclined with respect to the shaft portion 531. As shown in FIG. 3, the claw portion 532 has a triangular cross-sectional shape. The claw portion 532 is provided so as to gradually widen from the tip of the shaft portion 531 toward the main body portion 51. The insertion direction is also referred to as the insertion direction. The direction opposite to the insertion direction is also referred to as the removal direction.

[0053] When housing fixing portion 53 is inserted into fixing hole 25, claw portion 532 comes into contact with housing 20. That is, claw portion 532 comes into contact with the wall surface of housing 20 that forms fixing hole 25. Fixing member 50 is fixed (held) to housing 20 by the frictional force between claw portion 532 and housing 20. Also, it can be said that fixing member 50 is fixed to housing 20 because movement in the removal direction is restricted by claw portion 532 coming into contact with the wall surface. Furthermore, it can be said that housing fixing portion 53 is fixed by being press-fitted into fixing hole 25.

[0054] 2, the fixing member 50 is fixed to both the wiring board 10 and the housing 20. This state is also referred to as a fixed state. In the fixed state, the main body 51 is in contact with both the wiring board 10 and the housing 20. The board-facing surface S51 is in contact with the surface S11. The housing-facing surface S52 is in contact with the receiving surface S21.

[0055] Furthermore, in the fixed state, board fixing portion 52 is electrically connected to the ground pattern of wiring board 10. On the other hand, housing fixing portion 53 is in contact with housing 20. Therefore, in the fixed state of electronic control device 100, the ground pattern of wiring board 10 is grounded to housing 20.

[0056] <Manufacturing method> A manufacturing method for the electronic control device 100 will now be described with reference to Figures 6 to 11. The electronic control device 100 is manufactured using, for example, a manufacturing device. The manufacturing device includes a fixing member pusher 200, a board pusher 300, and a drive device for driving them. The drive device moves the fixing member pusher 200 and the board pusher 300 by, for example, a predetermined movement amount. In other words, the drive device moves the fixing member pusher 200 and the board pusher 300 by stroke control.

[0057] 9, the pusher 200 for the fixed member is a member that presses the fixed member 50. The pusher 200 for the fixed member includes a pusher base 210 and a pressing portion 220 that protrudes from the pusher base 210. The pusher 200 for the fixed member presses the housing-facing surface S52 with the pressing portion 220. The pusher 200 for the fixed member may also press the housing fixing portion 53 with the pusher base 210.

[0058] The fixed member pusher 200 presses the fixed member 50 with the housing fixing portion 53 disposed between the pressing portions 220. Therefore, the pressing portions 220 may be provided in an annular shape, or multiple pressing portions 220 may be provided. The length of the pressing portions 220 is approximately the same as or longer than the housing fixing portion 53. The length of the pressing portions 220 is the length in a direction perpendicular to the housing facing surface S52.

[0059] As shown in FIG. 10 , the board pusher 300 is a member that presses the wiring board 10. The board pusher 300 includes a pusher base 310 and a pressing portion 320 that protrudes from the pusher base 310. The board pusher 300 presses the opposite surface S12 with the pressing portion 320. The board pusher 300 presses the wiring board 10 in a state where a space is formed in the opposing region of the fixing hole 14. Therefore, the pressing portion 320 may be provided in an annular shape, or multiple pressing portions 320 may be provided.

[0060] 6, the manufacturing equipment performs a first mounting step t1 in which the substrate fixing portion 52 of the fixing member 50 is mounted on one surface S11 of the wiring substrate 10. In the first mounting step t1, the external connection terminals 40 are mounted on the wiring substrate 10. That is, in the first mounting step t1, the substrate fixing portion 52 is press-fitted into the fixing hole portion 14. Therefore, in the first mounting step t1, the substrate fixing portion 52 is electrically connected to the ground pattern of the wiring substrate 10.

[0061] In the first mounting process t1, the connection portions 42 are press-fit into the through holes 12. In this manner, in this manufacturing method, the fixing member 50 is mounted on the wiring board 10 in the same process as the process of mounting the external connection terminals 40 on the wiring board 10. The wiring board 10 on which the fixing member 50 and the external connection terminals 40 are mounted is also referred to as a substrate structure.

[0062] 9, in the first mounting step t1, the fixing member pusher 200 is used to press-fit the board fixing portion 52 into the fixing hole 14. That is, the fixing member 50 is pressed by the fixing member pusher 200.

[0063] In the first mounting step t1, it is preferable to press-fit the substrate fixing portion 52 into the fixing hole 14 to such an extent that a clearance GP is formed between the substrate-facing surface S51 and the one surface S11. In other words, it is preferable that the substrate-facing surface S51 and the one surface S11 are not in contact with each other at the time of the first mounting step t1. This makes it possible to prevent the wiring substrate 10 and the fixing member 50 from not contacting each other and to prevent excessive stress from being applied to the wiring substrate 10 in the second mounting step t2, which will be described later.

[0064] 7, after the first mounting process t1, the manufacturing equipment performs a second mounting process t2 in which the substrate structure is mounted on the housing 20. In the second mounting process t2, the wiring board 10 is pressed from the opposite surface S12 side to mount the housing fixing portion 53 on the housing 20.

[0065] As shown in FIGS. 10 and 11, in the second mounting process t2, the board pusher 300 is used to insert the housing fixing portion 53 into the fixing hole 25. That is, the wiring board 10 and the fixing member 50 are pressed by the board pusher 300. Also, in the second mounting process t2, the board-facing surface S51 is pressed against the one surface S11, and the housing-facing surface S52 is pressed against the accommodation surface S21. Therefore, it can be said that an assembly load is applied to the wiring board 10 and the fixing member 50 from the board pusher 300. The outline arrows in the figures indicate the pressing direction.

[0066] Therefore, in the second mounting process t2, the housing fixing portion 53 is fixed to the housing 20. That is, the wiring board 10 is fixed to the housing 20 via the fixing member 50 and is housed in the housing 20. In addition, the housing fixing portion 53 is electrically connected to the housing 20. As described above, the fixing member 50 has a configuration in which the board fixing portion 52 is electrically connected to the ground pattern of the wiring board 10. Therefore, in the second mounting process t2, it can be said that the wiring board 10 and the housing 20 are grounded. In addition, in the second mounting process t2, it can be said that the wiring board 10 is connected to the ground potential.

[0067] 8, after the second mounting process t2, the manufacturing apparatus performs an assembling process t3 in which the cover 30 is attached to the housing 20. As a result, the wiring board 10 is placed in the accommodation space formed by the housing 20 and the cover 30.

[0068] <Effects> As described above, in the electronic control device 100, the fixing member 50 is fixed to the wiring board 10 and the housing 20. The main body 51 is in contact with both the wiring board 10 and the housing 20. Therefore, the fixing member 50 in the electronic control device 100 can improve the fixing force with which the wiring board 10 is fixed. In other words, the fixing force of the electronic control device 100 can be improved compared to a configuration in which the wiring board 10 is fixed by a snap fit. The fixing force can also be called a holding force.

[0069] Furthermore, the electronic control device 100 has external connection terminals 40 provided in an opposing region of the surface S11. Therefore, an external connector is connected to the electronic control device 100 in a direction perpendicular to the surface S11. Therefore, it is conceivable that the wiring board 10 may be displaced in a direction perpendicular to the surface S11 due to stress, etc., when the external connector is connected. Furthermore, it is conceivable that the wiring board 10 may be displaced in a direction perpendicular to the surface S11 due to environmental stress in the market, etc., after the external connector is connected. It is noted that environmental stress includes temperature changes, vibrations, etc.

[0070] However, in the electronic control device 100, the fixing force of the fixing member 50 for fixing the wiring board 10 is improved. This makes it possible to prevent the wiring board 10 from shifting position as described above. Therefore, the electronic control device 100 can prevent a decrease in the reliability of the connection between the connection portion 42 and the through hole 12. Furthermore, the electronic control device 100 can prevent a decrease in the reliability of the connection between the terminal base 41 and the external connector.

[0071] Furthermore, in this manufacturing method, main body 51 is pressed so as to contact wiring board 10 and housing 20, respectively. Therefore, this manufacturing method can manufacture electronic control device 100 in which fixing member 50 has improved fixing force for fixing wiring board 10. Furthermore, in this manufacturing method, wiring board 10 can be grounded to housing 20 via fixing member 50 in the process of mounting the substrate structure on housing 20.

[0072] 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 to eighth embodiments will be described as other aspects of the present disclosure. The above embodiments and the second to eighth embodiments 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.

[0073] (Second embodiment) An electronic control device 100 of the second embodiment will be described with reference to Figures 12 and 13. This embodiment differs from the first embodiment in the configuration of the fixing member 50. Note that in Figure 12, the conductor portion 13 is not shown.

[0074] 12 and 13, the fixing member 50 has extension portions 511 and 512 that protrude relative to the main body portion 51. The extension portions 511 and 512 are provided so as to protrude relative to the main body portion 51 in a direction along one surface S1. The extension portions 511 and 512 protrude in different directions with the main body portion 51 as the base. In other words, the fixing member 50 has a shape that is bent along the one surface S1. Like the main body portion 51, the extension portions 511 and 512 have a board-facing surface S51 and a housing-facing surface S52.

[0075] As described above, the fixing member 50 includes the extensions 511 and 512. Therefore, the electronic control device 100 can increase the contact area between the fixing member 50 and the wiring board 10 and the contact area between the fixing member 50 and the housing 20. Therefore, the electronic control device 100 can stabilize the fixation and positioning between the wiring board 10 and the housing 20.

[0076] Furthermore, the electronic control device 100 can prevent the fixing member 50 from buckling due to stress applied to the fixing member 50 during manufacturing. The second embodiment can achieve the same effects as the first embodiment. The electronic control device 100 can be manufactured by the above-described manufacturing method.

[0077] (Third embodiment) An electronic control device 100 according to the third embodiment will be described with reference to Fig. 14. The third embodiment differs from the first embodiment in the configuration of a wiring board 10a.

[0078] As shown in Fig. 14, wiring board 10a includes substrate 11a1, inner layer pattern 11a2, inter-connection portion 11a3, surface layer pattern 11a4, surface conductor 15, and through-hole 16. Wiring board 10a has multiple inner layer patterns 11a2 stacked via substrate 11a1. Wiring board 10a also has surface layer patterns 11a4 provided on both sides of substrate 11a1. Each inner layer pattern 11a2 and surface layer pattern 11a4 are connected by inter-connection portion 11a3.

[0079] The correlation connection portion 11a3 is provided so as to surround the through hole of the base material 11a1. Like the conductor portion 13, the correlation connection portion 11a3 is provided on the surface of the through hole by plating or the like. The through hole 16 includes the correlation connection portion 11a3. The external connection terminal 40 or the terminal of a circuit element is not inserted into this through hole 16. The through hole 16 is provided to improve the rigidity of the wiring board 10a. The through hole 16 can also be called a dummy through hole.

[0080] The surface conductors 15 are provided around the through holes 16. The surface conductors 15 and the through holes 16 are provided to improve the rigidity of the wiring board 10a. The surface conductors 15 correspond to a conductor pattern.

[0081] The surface conductor 15 and the through hole 16 are provided in a region where they contact the main body 51. In other words, the surface conductor 15 and the through hole 16 are provided in opposing regions of the main body 51 in a fixed state.

[0082] This allows the electronic control device 100 to prevent the wiring board 10a from collapsing or becoming worn due to the assembly load. Note that the electronic control device 100 can prevent collapsing or becoming worn if at least one of the surface conductors 15 and the through holes 16 is provided. The third embodiment can also achieve the same effects as the first embodiment. The electronic control device 100 can be manufactured by the above-described manufacturing method. In other embodiments, the wiring board 10a can be used instead of the wiring board 10.

[0083] (Fourth embodiment) An electronic control device 100 according to the fourth embodiment will be described with reference to Figures 15 and 16. The fourth embodiment differs from the first embodiment in the fixing position of the fixing member 50 on the wiring board 10. Note that the conductor portion 13 is not shown in Figure 16.

[0084] 15, wiring board 10 has two adjacent side walls SW1 and SW2 and a corner CN1 that is the boundary between side walls SW1 and SW2. Fixing hole 14 is provided at an angle with respect to side walls SW1 and SW2. In other words, fixing hole 14 is provided on an imaginary straight line that is inclined with respect to side walls SW1 and SW2.

[0085] The fixing member 50 is disposed obliquely with respect to the corner CN1 in a direction along the one surface S1. The fixing member 50 is disposed such that a portion of the main body 51 protrudes from the wiring board 10. In other words, the main body 51 is disposed so as to straddle the two side walls SW1 and SW2 and protrude from the opposing region of the one surface S1.

[0086] As shown in FIG. 16, the protruding portion of the main body 51 is the portion that is pressed by the board pusher 300. Therefore, the electronic control device 100 does not need to press the wiring board 10 with the board pusher 300. Therefore, the electronic control device 100 can suppress the need to impose mounting restrictions on the circuit elements on the wiring board 10. In this case, it is not necessary to provide a clearance GP in the first mounting step t1. Furthermore, the fourth embodiment can achieve the same effects as the first embodiment. In this embodiment, the board pusher 300 can also be said to be a pusher for the second fixing member.

[0087] (Fifth embodiment) An electronic control device 100 according to the fifth embodiment will be described with reference to Figures 17 and 18. The fifth embodiment differs from the first embodiment in the configuration of a wiring board 10b. Note that the conductor portion 13 is not shown in Figure 18.

[0088] 17 and 18, the wiring board 10b has a board through-hole 17 that extends from one surface S11 to the opposite surface S12 in an area facing the main body portion 51. The board through-hole 17 is not for inserting the external connection terminal 40 or the terminal of a circuit element. The board through-hole 17 is for accommodating the pressing portion 320 of the board pusher 300 during the manufacturing process.

[0089] Furthermore, the substrate through-hole 17 may reach the side wall of the wiring substrate 10. That is, the wiring substrate 10 may be provided with a cutout in the opposing region of the main body portion 51, the cutout extending from one surface S11 to the opposite surface S12.

[0090] As shown in FIG. 18, the portion of the main body 51 facing the board through-hole 17 is the portion that is pressed by the board pusher 300. Therefore, the electronic control device 100 does not need to press the wiring board 10 with the board pusher 300. Therefore, the electronic control device 100 can achieve the same effects as the fourth embodiment. In this case, it is not necessary to provide the clearance GP in the first mounting step t1. Furthermore, the fifth embodiment can achieve the same effects as the first embodiment. In this embodiment, the board pusher 300 can also be said to be a pusher for the second fixing member. The wiring board 10b can also be used in the first to third embodiments, the sixth embodiment, and the seventh embodiment.

[0091] (Sixth embodiment) An electronic control device 100 according to a sixth embodiment will be described with reference to Figures 19 and 20. The sixth embodiment differs from the first embodiment in the configuration of the fixing member 50a. In this embodiment, the wiring board 10a is used as an example. However, this embodiment can also use the wiring boards 10 and 10b. The wiring board 10a is shown in simplified form.

[0092] As shown in Figures 19 and 20, fixing member 50a includes main body 51a, substrate fixing portion 52a, shaft 53a1, and housing fixing portion 53a2. Fixing member 50a includes housing fixing portion 53a2 instead of housing fixing portion 53. Main body 51a, shaft 53a1, and substrate fixing portion 52a are configured as a single unit. Main body 51a, shaft 53a1, and substrate fixing portion 52a are primarily composed of metal such as aluminum or copper. Main body 51a, shaft 53a1, and substrate fixing portion 52a can be manufactured by, for example, press working.

[0093] The main body 51a has a shaft 53a1 and a substrate fixing portion 52a that protrude from it. The substrate fixing portion 52a is similar to the substrate fixing portion 52.

[0094] The shaft portion 53a1 is a portion where the housing fixing portion 53a2 is provided. The housing fixing portion 53a2 is provided so as to contact the shaft portion 53a1 and cover the shaft portion 53a1. The housing fixing portion 53a2 is made of a resin or rubber elastic member. The housing fixing portion 53a2 may be made of an elastomer. The housing fixing portion 53a2 is press-fitted into the fixing hole portion 25. The housing fixing portion 53a2 corresponds to the second fixing portion.

[0095] As a result, the fixing member 50a can be applied to the housing 20, which is mainly made of metal and is difficult to press-fit, even if the main body 51a and the like are manufactured by press working. Furthermore, the electronic control device 100 can suppress the generation of shavings from the housing 20 when the housing fixing portion 53a2 is press-fitted into the fixing hole 25. Note that the sixth embodiment can achieve the same effects as the first embodiment. Furthermore, the electronic control device 100 can be manufactured by the above-mentioned manufacturing method.

[0096] (Seventh embodiment) An electronic control device 100 according to the seventh embodiment will be described with reference to Figures 21 and 22. The seventh embodiment differs from the first embodiment in the configuration of a fixing member 50b. Note that the conductor portion 13 is not shown in Figure 21.

[0097] As shown in Figures 21 and 22, the fixing member 50b includes a main body portion 51b, a substrate fixing portion 52b, and a housing fixing portion 53b. The main body portion 51b, the substrate fixing portion 52b, and the housing fixing portion 53b are configured as a single unit. The main body portion 51b, the substrate fixing portion 52b, and the housing fixing portion 53b are configured primarily with metals such as aluminum and copper. The substrate fixing portion 52b is similar to the substrate fixing portion 52. The housing fixing portion 53b is similar to the housing fixing portion 53. Reference symbol S51b denotes a side surface of the main body portion 51b.

[0098] As shown in Figure 22, the main body 51b has a curved portion 51b1. The main body 51b has a shape that is bent in the thickness direction due to the curved portion 51b1. The main body 51b also has a contact portion 51b2 between the curved portion 51b1 and the tip 51b3. The tip 51b3 becomes a punched fracture surface, which will be described later. The side surface S51b is a surface that continues to the tip 51b3.

[0099] The contact portion 51b2 includes a portion that contacts the surface S11 in the fixed state. That is, a portion of the side surface 51b of the main body 51b between the tip portion 51b3 and the bent portion 51b1 contacts the surface S11. Therefore, the portion of the side surface 51b of the main body 51b that corresponds to the contact portion 51b2 forms the substrate-facing surface S51.

[0100] The tip of the fixing member manufactured by press molding becomes a punched fracture surface. The punched fracture surface of the fixing member is considered to be the contact surface with the wiring board 10. In other words, the tip of the fixing member, which becomes the punched fracture surface, comes into contact with the wiring board 10. Therefore, the contact of the fixing member with the wiring board 10 becomes unstable due to non-uniformity in the fracture surface shape. In other words, the fixing member will have large positioning variations in the thickness direction of the wiring board 10. Furthermore, there is a risk that the fixing member will damage one surface S11. In particular, if the wiring board 10 is deformed due to vibration or thermal stress, the fixing member is likely to damage one surface S11.

[0101] However, the fixing member 50 can overcome the above-mentioned concerns because the substrate-facing surface S51, which is a part of the side surface S51b, contacts the wiring board 10. The seventh embodiment can achieve the same effects as the first embodiment. Furthermore, the electronic control device 100 can be manufactured by the above-mentioned manufacturing method. The fixing member 50 in other embodiments may include a curved portion 51b1 and a contact portion 51b2.

[0102] (Eighth embodiment) An electronic control device 100 according to the eighth embodiment will be described with reference to Figures 23 and 24. The eighth embodiment differs from the first embodiment in the configuration of the fixing member 50c. Note that this embodiment employs a wiring board 10a as an example. However, this embodiment may employ a wiring board 10.

[0103] As shown in FIGS. 23 and 24, the electronic control device 100 includes a wiring board 10a, housing members 20c and 30c that house the wiring board, and a fixing member 50c that fixes the wiring board 10a to the housing members 20c and 30c.

[0104] The housing members 20c, 30c include a housing 20c and a cover 30c. The housing members 20c, 30c house the wiring board 10a. The housing 20c and the cover 30c are assembled together to form a housing space for housing the wiring board 10a. In this embodiment, as an example, housing members 20c, 30c whose main component is a metal such as aluminum or copper are employed. However, the present disclosure can also employ housing members 20c, 30c whose main component is resin. Furthermore, the housing 20c and the cover 30c may be formed from different materials. The state in which the housing 20c and the cover 30c are assembled is also referred to as an assembled state.

[0105] The housing 20c includes a flange portion 26c. The flange portion 26c is provided at the four corners of the housing 20c. The flange portion 26c is provided with a through hole into which a bolt 60 is inserted. Note that the housing 20c may be provided with a connector housing 23 and a terminal hole portion 24, similar to the housing 20.

[0106] The cover 30c includes a flange portion 36c. The flange portion 36c is provided at a position facing the flange portion 26c. The flange portion 36c is provided with threaded holes into which bolts 60 are fastened. In an assembled state, the threaded holes are disposed opposite the through holes of the flange portion 26c. The bolts 60 correspond to screws.

[0107] The fixing member 50c includes a board fixing portion 52c fixed to the wiring board 10a, a housing fixing portion 54c fixed to the housing 20c, and a main body portion 51c connected to the board fixing portion 52c and the housing fixing portion 54c.

[0108] The substrate fixing portion 52c and the housing fixing portion 54c are provided to protrude relative to the main body portion 51c. The substrate fixing portion 52c protrudes in a direction along the main body portion 51c. On the other hand, the housing fixing portion 54c protrudes in a direction intersecting the main body portion 51c. Therefore, the fixing member 50c has an L-shaped bent shape in the thickness direction. The substrate fixing portion 52c corresponds to the first fixing portion. The housing fixing portion 54c corresponds to the second fixing portion.

[0109] The substrate fixing portion 52c is fixed to the wiring substrate 10a, similar to the substrate fixing portion 52. On the other hand, the housing fixing portion 54c is fixed to the housing members 20c, 30c by bolts 60. More specifically, the housing fixing portion 54c includes an out-of-area portion that is arranged outside the opposing area of ​​the wiring substrate 10a when the substrate fixing portion 52c is fixed to the wiring substrate 10a.

[0110] The housing fixing portion 54c is provided with a hole 55c into which a bolt 60 is inserted. The hole 55c is provided in a region outside the region. The region outside the region can also be said to be a portion that protrudes outside the outline of the wiring board 10a. In the assembled state, the hole 55c is disposed opposite the screw hole of the flange portion 36c and the through-hole of the flange portion 26c. Note that the opposite region here is the region that faces the one surface S1.

[0111] The housing fixing portion 54c (outside the area) is sandwiched between the flange portion 26c and the flange portion 36c. The housing fixing portion 54c is fixed to the flange portion 26c and the flange portion 36c by the bolt 60. In other words, the housing fixing portion 54c is fastened together to the flange portion 26c and the flange portion 36c by the bolt 60.

[0112] In the electronic control device 100, the wiring board 10a can be fixed to the housing 20c and the cover 30c in the process of fixing the housing 20c and the cover 30c. In other words, the electronic control device 100 can be manufactured without performing the process of simply fixing the wiring board 10a to the housing members 20c, 30c.

[0113] Furthermore, the fixing member 50c is fixed to the housing members 20c, 30c by bolts 60. The fixing member 50c is fixed more firmly than when it is fixed to the housing members 20c, 30c by press-fitting. Therefore, the electronic control device 100 can improve the fixing force for fixing the wiring board 10a.

[0114] Furthermore, when fixing the wiring board 10a to the housing members 20c, 30c, a fixing structure in which the wiring board 10a and the housing members 20c, 30c are directly screwed together is conceivable. However, with this fixing structure, there is a risk that stress will be applied to the wiring board 10a due to the difference in linear expansion coefficients between the wiring board 10a and the housing members 20c, 30c. The application of stress to the wiring board 10a may also reduce the connection life of the connecting members on the wiring board 10a. The connecting members are, for example, solder for mounting circuit elements.

[0115] However, the wiring board 10a is fixed to the housing members 20c and 30c via the fixing member 50c. Therefore, even if there is a difference in the linear expansion coefficient as described above, the electronic control device 100 can reduce the stress applied to the wiring board 10a by bending the fixing member 50c.

[0116] 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.

[0117] (Disclosure of technical ideas) This specification discloses multiple technical ideas described in the following multiple clauses. Some clauses may be written in a multiple dependent form, with the subsequent clause referring to the preceding clause as an alternative. Furthermore, some clauses may be written in a multiple dependent form, referring to another multiple dependent clause. These multiple dependent clauses define multiple technical ideas.

[0118] (Technical thought 1) A wiring board (10, 10a, 10b), a housing (20) that houses the wiring board; a fixing member (50, 50a, 50b) for fixing the wiring board to the housing, The fixing member comprises a first fixing portion (52) fixed to the wiring board, a second fixing portion (53) fixed to the housing, and a main body portion (51) connected to the first fixing portion and the second fixing portion, and the main body portion is in contact with both the wiring board and the housing.

[0119] (Technical thought 2) The electronic control device according to Technical Idea 1, wherein the first fixing portion is a press-fit mechanism.

[0120] (Technical Thought 3) The electronic control device according to Technical Idea 1 or 2, wherein the first fixing portion and the second fixing portion are primarily made of metal.

[0121] (Technical Thought 4) The electronic control device according to Technical Idea 1 or 2, wherein the second fixing portion is a resin or rubber elastic member.

[0122] (Technical Thought 5) The electronic control device according to any one of Technical Ideas 1 to 4, wherein the fixing member has an extension portion (511, 512) that protrudes from the main body portion and has a shape that is bent along one surface of the wiring board.

[0123] (Technical Thought 6) An electronic control device described in any one of technical ideas 1 to 4, wherein the main body portion has a bent portion (51b1) and a portion of the side surface between the tip portion and the bent portion is in contact with one surface (S11) of the wiring board.

[0124] (Technical Thought 7) The electronic control device according to any one of Technical Concepts 1 to 6, wherein the wiring board has a through hole (16) in a region where the main body portion comes into contact.

[0125] (Technical Thought 8) The electronic control device according to any one of Technical Concepts 1 to 6, wherein the wiring board has a conductor pattern (15) in an area where the main body is in contact.

[0126] (Technical Thought 9) An electronic control device described in any one of technical ideas 1 to 8, wherein the main body portion is in contact with one surface (S11) of the wiring board, straddles two adjacent side walls of the wiring board, and is arranged protruding from the opposing area of ​​the one surface.

[0127] (Technical Thought 10) The main body is in contact with one surface (S11) of the wiring board, An electronic control device described in any one of technical ideas 1 to 9, wherein the wiring board has a board through hole (17) in the opposing area of ​​the main body portion, extending from the one surface to the opposite surface (S12) of the one surface.

[0128] (Technical Thought 11) The electronic control device according to any one of technical ideas 1 to 9, wherein the wiring board has a notch in the opposing area of ​​the main body portion, the notch extending from one surface of the wiring board to the opposite surface (S12) of the one surface.

[0129] (Technical Thought 12) The fixing member is disposed between one surface of the wiring board and an opposing portion (21) of the housing that faces the one surface, The electronic control device according to any one of Technical Ideas 1 to 11 further comprises an external connection terminal (40) mounted on the wiring board and provided from the one surface to the outside of the facing portion.

[0130] (Technical Thought 13) A wiring board (10, 10a), a housing member (20c, 30c) for housing the wiring board; a fixing member (50c) for fixing the wiring board to the housing member, the fixing member includes a first fixing portion (52) fixed to the wiring board, a second fixing portion (54c) fixed to the housing member, and a main body portion (51c) connected to the first fixing portion and the second fixing portion, The second fixing portion is an electronic control device fixed to the housing member by a screw (60).

[0131] (Technical Thought 14) A fixing member for fixing a wiring board to a housing, A fixing member comprising a first fixing portion (52) fixed to the wiring board, a second fixing portion (53) fixed to the housing, and a main body portion (51) connected to the first fixing portion and the second fixing portion, wherein the main body portion is arranged so as to contact both the wiring board and the housing.

[0132] (Technical Thought 15) A method for manufacturing an electronic control device including a wiring board (10, 10a), a housing (20) that houses the wiring board, and a fixing member (50, 50a, 50b) that fixes the wiring board to the housing, the method comprising: a first mounting step (t1) of mounting a first fixing portion (52) of the fixing member on one surface (S11) of the wiring board; a second mounting step (t2) of mounting a second fixing portion (53) of the fixing member to the housing by pressing from a side of a surface (S12) opposite to the one surface of the wiring board after the first mounting step, In the second mounting step, a main body portion (51) of the fixing member, which is connected to the first fixing portion and the second fixing portion, is pressed against the wiring board and the housing, respectively.

[0133] (Technical Thought 16) the housing and the fixing member are primarily made of metal, In the first mounting step, the first fixing portion is electrically connected to a ground wiring of the wiring board, The manufacturing method according to Technical Idea 15, wherein in the second mounting step, the second fixing portion is electrically connected to the housing, thereby grounding the wiring board and the housing. [Explanation of symbols]

[0134] 10... wiring board, 20... housing, 30... cover, 40... external connection terminal, 50... fixing member, 51... main body portion, 52... board fixing portion, 53... housing fixing portion, 100... electronic control device

Claims

1. A wiring board (10, 10a, 10b), a housing (20) that houses the wiring board; a fixing member (50, 50a, 50b) for fixing the wiring board to the housing, The fixing member comprises a first fixing portion (52) fixed to the wiring board, a second fixing portion (53) fixed to the housing, and a main body portion (51) connected to the first fixing portion and the second fixing portion, and the main body portion is in contact with both the wiring board and the housing.

2. The electronic control device according to claim 1 , wherein the first fixing portion is a press-fit mechanism.

3. The electronic control device according to claim 1 or 2, wherein the first fixing portion and the second fixing portion are made mainly of metal.

4. The electronic control device according to claim 1 or 2, wherein the second fixing portion is made of a resin or rubber elastic member.

5. 3. The electronic control device according to claim 1, wherein the fixing member has an extension portion (511, 512) that protrudes from the main body portion and has a shape that is bent along one surface of the wiring board.

6. 3. The electronic control device according to claim 1, wherein the main body has a bent portion (51b1), and a part of the side surface between the tip and the bent portion is in contact with one surface (S11) of the wiring board.

7. 3. The electronic control device according to claim 1, wherein the wiring board has a through hole (16) in a region where the main body is in contact.

8. 3. The electronic control device according to claim 1, wherein the wiring board is provided with a conductor pattern (15) in a region where the main body is in contact.

9. The electronic control device according to claim 1 or 2, wherein the main body portion is in contact with one surface (S11) of the wiring board, spans two adjacent side walls of the wiring board, and is positioned extending beyond the opposing area of ​​the one surface.

10. The main body is in contact with one surface (S11) of the wiring substrate, 3. The electronic control device according to claim 1, wherein the wiring board has a through-hole (17) in the opposing region of the main body, the through-hole extending from the one surface to the opposite surface (S12) of the one surface.

11. 3. The electronic control device according to claim 1, wherein the wiring board has a notch in a region facing the main body, the notch extending from one surface of the wiring board to a surface (S12) opposite the one surface.

12. The fixing member is disposed between one surface of the wiring board and an opposing portion (21) of the housing that faces the one surface, 3. The electronic control device according to claim 1, further comprising an external connection terminal (40) mounted on the wiring board and extending from the one surface to the outside of the facing portion.

13. A wiring board (10, 10a), a housing member (20c, 30c) for housing the wiring board; a fixing member (50c) for fixing the wiring board to the housing member, the fixing member includes a first fixing portion (52) fixed to the wiring board, a second fixing portion (54c) fixed to the housing member, and a main body portion (51c) connected to the first fixing portion and the second fixing portion, The second fixing portion is fixed to the housing member by a screw (60).

14. A fixing member for fixing a wiring board to a housing, A fixing member comprising a first fixing portion (52) fixed to the wiring board, a second fixing portion (53) fixed to the housing, and a main body portion (51) connected to the first fixing portion and the second fixing portion, wherein the main body portion is arranged so as to contact both the wiring board and the housing.

15. A method for manufacturing an electronic control device including a wiring board (10, 10a), a housing (20) that houses the wiring board, and a fixing member (50, 50a, 50b) that fixes the wiring board to the housing, a first mounting step (t1) of mounting a first fixing portion (52) of the fixing member on one surface (S11) of the wiring board; a second mounting step (t2) of mounting a second fixing portion (53) of the fixing member to the housing by pressing from a side of a surface (S12) opposite to the one surface of the wiring board after the first mounting step, In the second mounting step, a main body portion (51) of the fixing member, which is connected to the first fixing portion and the second fixing portion, is pressed against the wiring board and the housing, respectively.

16. the housing and the fixing member are primarily made of metal, In the first mounting step, the first fixing portion is electrically connected to a ground wiring of the wiring board, The manufacturing method according to claim 15 , wherein in the second mounting step, the second fixing portion is electrically connected to the housing, thereby grounding the wiring board and the housing.

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