JP2006148011A - Fitting structure for electric element to substrate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable size reduction in a direction perpendicular to a surface of a substrate by making it possible to fit an electric element in such a posture that the length direction of the electric element is along the surface of the substrate. <P>SOLUTION: A reception member 30 is provided with a storage space 31 capable of storing an aluminum electrolysis capacitor 20 in a lying posture and a pressure member 40 is attachable to and detachable from its opening portion. The reception member 30 is fixed while fitted to the substrate 10 with screw members N. A support portion 38 which projects toward the substrate 10 is provided on a bottom surface of the reception member 30. A space S of specified height is secured by the support portion 38 between the reception member 30 and substrate 10 and another electric element D can be mounted in the space S. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electric element mounting structure for a substrate.

Conventionally, what was described in the following patent document 1 is known as an example in which a substrate is accommodated in a case of an ECU and a large number of electric elements are attached to the substrate. As shown in FIG. 17, a substrate 2 is housed in a lower case 1 of an ECU, and a large number of electrical elements such as relays 3 and capacitors 4 are mounted on the substrate 2, and an upper case 5 is mounted from above. It is designed to be covered.
JP 2004-119485 A

In the above, since the capacitor 4 which is a large electric element is attached in a standing posture with respect to the substrate 2, the whole is bulky.
However, even if the capacitor 4 is attached to the substrate 2 in a lying position, the surface area of the substrate 2 is increased accordingly, so that the substrate 2 is oriented in the plane direction in order to secure a mounting area for other electric elements. I was forced to increase the size, and I was struggling with measures.
The present invention has been completed based on the above circumstances, and aims to reduce the size.

  As a means for achieving the above object, the invention of claim 1 is a mounting structure of a columnar electric element to a substrate, wherein the electric element has a length direction along the surface of the substrate. And a support portion capable of supporting the electric element in a state where a predetermined space is maintained between the substrate and the substrate.

  The invention of claim 2 is characterized in that, in the invention of claim 1, a pressing member capable of pressing the electric element from the side opposite to the substrate is provided.

  According to a third aspect of the present invention, there is provided the receiving member according to the first or second aspect, wherein the receiving member is arranged on the substrate side so as to be able to receive the electric element, and the support portion is integrally provided. The receiving member is characterized by having fixing means that can fix the receiving member to the substrate.

  According to a fourth aspect of the present invention, the pressing member can be attached to and detached from the receiving member according to the third aspect, and both of the pressing member and the receiving member can be held in a mounted state. It is characterized in that a locking means is provided.

  The invention of claim 5 is characterized in that, in the invention of claim 4, the opposing surfaces of the receiving member and the pressing member to the electric element are formed in a shape along the outer shape of the electric element. Have.

  According to a sixth aspect of the present invention, in the method according to any one of the third to fifth aspects, the fixing means includes a fitting having a press-fit portion that can be press-fitted into a hole provided in the substrate. This metal fitting is characterized in that it is mounted on the receiving member.

  According to a seventh aspect of the present invention, in the apparatus according to the sixth aspect, the metal fitting has an element side connection portion connectable to a connection terminal of the electric element, and the press-fitting portion is connected to the conductive path of the substrate. It is characterized in that it can be connected.

<Invention of Claim 1>
Since the electric element is attached in such a posture that its length direction is aligned with the surface of the substrate, it can be miniaturized in a direction orthogonal to the surface of the substrate. In addition, since the electric element is supported by the support portion in a state where a predetermined space is secured between the electric element and the substrate, for example, by mounting another electric element in the space, The surface area can be used effectively. Thereby, size reduction can be achieved also about the surface direction of a board | substrate.

<Invention of Claim 2>
Shaking of the electric element due to vibration or the like can be suppressed.
<Invention of Claim 3>
Since it can attach with respect to a board | substrate in the state which accommodated the electrical element in the receiving member, it is excellent in workability | operativity.

<Invention of Claim 4>
The pressing member and the electric element can be collectively attached to the substrate in a state assembled to the receiving member, and the workability is further improved.
<Invention of Claim 5>
Shaking of the electric element can be suppressed as much as possible.

<Invention of Claim 6>
The receiving member can be fixed to the substrate by press-fitting the press-fitting portion of the metal fitting attached to the receiving member into the hole of the substrate. Thereby, the fixing operation of the receiving member with respect to the substrate becomes easy.
<Invention of Claim 7>
The function of fixing the receiving member to the substrate and the function of electrically connecting the electric element to the substrate can be used as the metal fitting.

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. In this Embodiment 1, the structure which attaches the aluminum electrolytic capacitor 20 with respect to the board | substrate 10 accommodated in the case of ECU which is not shown in figure is illustrated. As shown in FIG. 1, the mounting structure roughly includes a receiving member 30 that can receive the aluminum electrolytic capacitor 20, a pressing member 40 that can be attached to and detached from the receiving member 30, and the receiving member 30 to the substrate 10. And a screw member N that can be fixed. In the following, description of the vertical direction and the horizontal direction is based on FIGS. 1 and 7.

  The aluminum electrolytic capacitor 20 is composed of a main body portion 21 having a columnar shape elongated in one direction, and a pair of connection terminals 22 protruding from the left end surface (one end surface) of the main body portion 21 in the figure. The aluminum electrolytic capacitor 20 is accommodated in the receiving member 30 in a posture in which the main body portion 21 is laid down, that is, in a posture in which the length direction (axial direction) is along the surface direction of the substrate 10 (substantially parallel). ing. Both connection terminals 22 are bent downward from the end face of the main body portion 21 by projecting a predetermined dimension along the length direction thereof. In other words, the connection terminal 22 has a configuration in which a horizontal portion 22a that is horizontal along the surface of the substrate 10 and a vertical portion 22b that is perpendicular to the surface of the substrate 10 are connected to each other, and is substantially L-shaped when viewed from the side. There is no. Of these, the tip of the vertical portion 22b is inserted into the hole 11 provided in the substrate 10 and is electrically connected to a conductive path (not shown) of the substrate 10 by soldering. It is possible.

  The receiving member 30 is made of a synthetic resin and is formed in a substantially rectangular box shape whose upper surface is open, and an accommodation space 31 in which the aluminum electrolytic capacitor 20 can be accommodated is secured. As shown in FIG. 4, the bottom surface 31 a of the housing space 31 (the surface facing the aluminum electrolytic capacitor 20) is formed in a substantially arc shape along the outer surface of the main body portion 21 of the aluminum electrolytic capacitor 20. Further, a notch 32 that opens upward is formed at a substantially central position in the length direction of both long side portions of the peripheral wall of the receiving member 30.

  As shown in FIGS. 1 and 7, on the left and right sides of the cutouts 32 on the outer side surfaces of the long side portions of the peripheral wall of the receiving member 30, the locked portion 33 to which the lock piece 41 of the pressing member 40 can be locked. Are provided in pairs. The locked portion 33 is configured to protrude laterally from the outer surface of the receiving member 30, and its upper surface is formed in a tapered shape so as to guide the riding operation of the lock piece 41. A pair of lock guide portions 34 that can guide the mounting operation of the pressing member 40 by slidingly contacting the lock pieces 41 are provided on the left and right sides of the respective locked portions 33. The upper end portions of the pair of lock guide portions 34 are formed in a tapered shape so that the receiving opening for the lock piece 41 is widened.

  As shown in FIG. 1, a pair of terminal insertion grooves 35 into which the horizontal portion 22a of both the connection terminals 22 of the aluminum electrolytic capacitor 20 can be inserted are formed on the short side portion on the left side of the peripheral wall of the receiving member 30 as shown in FIG. An opening is provided. A terminal support portion 36 capable of supporting the vertical portion 22b of both connection terminals 22 is provided at the lower end portion of the short side portion of the peripheral wall of the receiving member 30 where the terminal insertion groove 35 is provided. The terminal support portion 36 is provided with a pair of terminal support grooves 36a that sandwich the connection terminal 22 and open to the left side in the drawing. The length dimension of the terminal support portion 36 is set shorter than the short side of the receiving member 30.

  As shown in FIGS. 4 and 7, a screw mounting portion 37 to which a screw member N for fixing the receiving member 30 to the substrate 10 can be attached to the bottom surface (the surface facing the substrate 10) of the receiving member 30. Is provided. A pair of screw attachment portions 37 are arranged in the vicinity of both end positions in the longitudinal direction on the bottom surface of the receiving member 30. Each screw mounting portion 37 is formed with a screw hole 37a into which the screw member N passed through the screw insertion hole 12 provided in the substrate 10 can be screwed.

  As shown in FIGS. 1 and 7, the pressing member 40 has a substantially flat plate shape having a size capable of closing the opening portion of the upper surface of the receiving member 30. A pair of lock pieces 41 are provided on both long side edges of the pressing member 40 at positions corresponding to the locked portions 33 on the receiving member 30 side. The lock piece 41 is formed in a cantilever shape extending downward, and can be elastically deformed so as to open outward with the root portion as a fulcrum. The lock piece 41 is formed with a groove portion 42 that allows the locked portion 33 to enter the center of the lock piece 41 so as to open upward. The remaining tip portion 41 a can be locked to the locked portion 33. The

  As shown in FIG. 4, a pressing portion 43 capable of pressing the aluminum electrolytic capacitor 20 is provided on the lower surface of the pressing member 40 (the surface facing the aluminum electrolytic capacitor 20). The pressing portion 43 is constituted by a ridge extending along the short side direction of the pressing member 40, and the inner surface 43 a thereof, that is, the surface facing the aluminum electrolytic capacitor 20 is formed in a substantially arc shape along the outer surface of the main body portion 21. ing. The inner surface 43a of the pressing portion 43 can form a circle together with the bottom surface 31a of the receiving space 31 of the receiving member 30 in the assembled state, and the diameter of the circle is the same as the outer diameter of the main body 21. The settings are almost the same (see FIG. 5).

  As shown in FIGS. 1, 4 and 7, a support portion 38 that protrudes downward (on the substrate 10 side) is provided on the bottom surface (the surface facing the substrate 10) of the receiving member 30. A pair of support portions 38 are provided at both end positions of the receiving member 30 in the long side direction. Both support portions 38 are constituted by ridges extending along the short side direction of the receiving member 30, and are respectively connected to the screw attachment portions 37. The length dimension of both the support parts 38 is set to be substantially the same as that of the terminal support part 36, and the support part 38 on the left side of the figure is also connected to the terminal support part 36.

  When the receiving member 30 is attached to the substrate 10, the lower support portions 38 are brought into contact with the upper surface of the substrate 10, and the bottom surface of the receiving member 30 is lifted (floated) from the upper surface of the substrate 10 by a predetermined height. ) Position (see FIGS. 6 and 8). Therefore, a space S corresponding to the height of the support portion 38 is secured between the substrate 10 and the receiving member 30 in the attached state. In the height dimension of the support portion 38, that is, the space S between the substrate 10 and the receiving member 30, it is possible to mount another electric element D on the upper surface of the substrate 10 or to provide wiring (not shown). Is set to a size. The mounting work and wiring work of other electric elements D are performed prior to the work of attaching the receiving member 30 to the substrate 10 as will be described in detail below.

  The present embodiment has the above structure, and the assembly work will be described next. First, as shown in FIGS. 1 and 4, the aluminum electrolytic capacitor 20 is housed from above in the housing space 31 of the receiving member 30 in a posture in which the aluminum electrolytic capacitor 20 is laid down. In this process, the vertical portions 22b of both connection terminals 22 are passed through the both terminal support grooves 36a of the terminal support portion 36, and the horizontal portions 22a are passed through the both terminal insertion grooves 35. The mounting posture around the axis is determined.

  Thereafter, the pressing member 40 is assembled to the opening portion of the receiving member 30 from above. In this process, when the lock pieces 41 enter between the pair of lock guide portions 34, the pressing member 40 is positioned in the left-right direction with respect to the receiving member 30. Then, the lock piece 41 rides on the locked portion 33 and is elastically deformed so as to open outward once, and then recovers when it gets over the locked portion 33. As shown in FIGS. 2 and 7, the lock piece 41 is locked in the groove portion 42. As the portion 33 enters, the lower surface of the locked portion 33 engages with the upper surface of the distal end portion 41a. In this attached state, as shown in FIG. 5, the outer peripheral surface of the main body portion 21 of the aluminum electrolytic capacitor 20 is contacted with the bottom surface 31a of the housing space 31 and the inner surface 43a of the pressing portion 43 of the pressing member 40 over almost the entire circumference. Touching. That is, since the aluminum electrolytic capacitor 20 is held in a state of being sandwiched between the receiving member 30 and the pressing member 40 with almost no gap, it is possible to prevent the body portion 21 from shaking in the radial direction. Yes.

  While performing the operation of assembling the receiving member 30 with the aluminum electrolytic capacitor 20 and the holding member 40 as described above, another electric element D is placed at the position where the receiving member 30 (the aluminum electrolytic capacitor 20) is to be mounted on the substrate 10. Work to install and wiring. Then, an operation of attaching the assembled receiving member 30 assembled with the aluminum electrolytic capacitor 20 and the pressing member 40 to the substrate 10 is performed. While inserting the front-end | tip part of the perpendicular | vertical part 22b of both the connection terminals 22 with respect to both the hole parts 11 of the board | substrate 10, it inserts into the both screw insertion holes 12 of the board | substrate 10, and the screw hole 37a of the both screw attachment part 37 is inserted. Align. Thereafter, both screw members N are passed through the screw insertion holes 12 from the back side of the substrate 10 and tightened to be screwed into the screw holes 37 a of the screw attachment portion 37. Thereby, as shown in FIGS. 3, 6, and 8, the receiving member 30 is fixed to the substrate 10 together with the aluminum electrolytic capacitor 20 and the pressing member 40. Also, the vertical portions 22b of both connection terminals 22 are soldered to be electrically connected to the conductive path of the substrate 10.

  At the time of attachment, the lower surface of both support portions 38 of the receiving member 30 is in contact with the upper surface of the substrate 10, so that the receiving member 30 is supported in a state where a space S is secured between the receiving member 30 and the substrate 10. As a result, other electrical elements D and wirings provided in advance on the substrate 10 are accommodated in the space S between the receiving member 30 and the substrate 10. In other words, the aluminum electrolytic capacitor 20 and the other electric elements D and wirings are arranged at positions overlapping in the surface direction of the substrate 10 although they are displaced in the height direction (direction orthogonal to the surface direction of the substrate 10). .

  As for the assembling procedure, for example, another electrical element D or the like is first mounted on the mounting position of the receiving member 30 on the substrate 10, and then the receiving member 30 is attached to the substrate 10. The capacitor 20 and the pressing member 40 may be assembled in this order, and the assembly procedure can be changed as appropriate.

  As described above, according to the present embodiment, since the aluminum electrolytic capacitor 20 is attached in a posture in which the length direction thereof is in the horizontal direction, that is, along the surface of the substrate 10, the height direction, that is, the surface of the substrate 10 is The overall size can be reduced in the orthogonal direction. In addition, since a predetermined space S is secured between the receiving member 30 containing the aluminum electrolytic capacitor 20 and the substrate 10, it is supported by the support portion 38. The surface area of the substrate 10 can be used effectively, such as mounting a wiring or providing wiring. Thereby, size reduction can be achieved also about the surface direction of the board | substrate 10. FIG.

  Further, since the aluminum electrolytic capacitor 20 is pressed by the pressing member 40 from the side opposite to the substrate 10, it is possible to prevent the aluminum electrolytic capacitor 20 from rattling in the direction in which the aluminum electrolytic capacitor 20 contacts and separates from the substrate 10 due to vibration or the like. it can.

  Moreover, since the aluminum electrolytic capacitor 20 is accommodated in the receiving member 30 integrally provided with the support portion 38 and the receiving member 30 is fixed to the substrate 10 by the screw member N, the workability is excellent. In addition, since the holding member 40 can be held in the receiving member 30 by the lock piece 41 and the locked portion 33, the holding member 40 and the aluminum electrolytic capacitor 20 are assembled in a state assembled to the receiving member 30. It can be attached to the substrate 10 and is further excellent in workability.

  In addition, since the inner peripheral surfaces of the receiving member 30 and the pressing member 40 are formed in an arc shape along the outer peripheral surface of the aluminum electrolytic capacitor 20, rattling of the aluminum electrolytic capacitor 20 can be suppressed as much as possible.

<Embodiment 2>
A second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, a metal fitting 60 is used to fix the receiving member 30 to the substrate 10. In the second embodiment, redundant description of the same structure, operation, and effects as those in the first embodiment will be omitted.

  As shown in FIG. 9, metal mounting portions 50 to which the metal fitting 60 can be attached are provided on both short sides of the peripheral wall of the receiving member 30 (hereinafter, the left and right metal fittings shown in FIGS. 9 and 15). When distinguishing between the part 50 and the metal fitting 60, the subscript A is attached to the left one, and the subscript B is attached to the right one. The common structure of the two metal fittings 50 will be described. The metal fittings 50 are formed so as to protrude laterally from the short side portion of the peripheral wall of the receiving member 30, and the metal fittings 60 can be press-fitted and held individually. A mounting groove 51 is provided penetrating vertically.

  Explaining the different structure of the metal fitting mounting portion 50, four metal fitting mounting grooves 51B are arranged in parallel on the metal fitting mounting portion 50B on the right side. A wall 52 continuous with the peripheral wall of the receiving member 30 is provided around the outer peripheral edge of the right metal fitting 50B. Two metal fitting grooves 51A wider than the right metal fitting groove 51B are arranged in parallel on the left metal fitting portion 50A. Further, the left metal mounting part 50A is connected to the adjacent left support part 38.

  Next, the common structure of the metal fitting 60 corresponding to each metal fitting attaching part 50 is demonstrated. The metal fitting 60 is formed into a predetermined shape by pressing a metal plate. A receiving member side press-fit portion 61 that can be press-fitted into the metal fitting mounting groove 51 is formed on the upper side, and the substrate 10 is formed on the lower side. Substrate-side press-fit portions 62 that can be press-fitted into the holes 13 are respectively provided. The receiving member side press-fit portion 61 is formed wider than the groove width of the metal fitting mounting groove 51, and an overhang portion 63 that is wider is provided at the lower end position thereof. The overhanging portion 63 is capable of regulating the press-fitting depth of the metal fitting 60 by abutting against the side edge of the metal fitting mounting groove 51 during press-fitting. The board-side press-fit portion 62 has an outer width dimension larger than the diameter dimension of the hole portion 13 of the substrate 10, and an overhanging portion 64 having a larger outer width is provided at the upper end position. The overhanging portion 64 is capable of regulating the press-fitting depth of the metal fitting 60 by abutting against the periphery of the hole 13 during press-fitting.

  The difference structure of the metal fitting 60 will be described. The right metal fitting 60B is formed so that the width of the receiving member side press-fit portion 61B is smaller than the left metal fitting 60A corresponding to the metal fitting mounting groove 51B. A capacitor side connection portion 65 to which the connection terminal 22 of the aluminum electrolytic capacitor 20 can be connected is provided above the receiving member side press-fit portion 61A in the left metal fitting 60A. The connection terminal 22 of the aluminum electrolytic capacitor 20 has a structure having only a horizontal portion protruding to the left in the figure. The capacitor side connection portion 65 is formed in a forked shape by providing a slit 65a that opens upward, and the connection terminal 22 can be sandwiched therebetween. The capacitor side connecting portion 65 protrudes upward from the metal fitting mounting portion 50A in a state where the metal fitting 60A is attached to the metal fitting mounting portion 50A. When the board-side press-fit portion 62A of the left metal fitting 60A is press-fitted into the hole 13 of the board 10, it is provided on the peripheral surface of the hole 13 and is connected to a contact portion (not shown) connected to the conductive path. It can be electrically connected.

  This embodiment has the structure as described above, and the operation thereof will be described subsequently. From the state shown in FIG. 9, first, an operation of attaching the metal fittings 60 to the metal fitting attaching portions 50 of the receiving member 30 is performed. The receiving member side press-fitting portion 61 of each metal fitting 60 is press-fitted into each metal fitting mounting groove 51 from below. As a result, as shown in FIG. 10, each metal fitting 60 is press-fitted and held with respect to the receiving member 30. The press-fitting depth of each metal fitting 60 is regulated to a predetermined amount by the protruding portion 63 abutting against the side edge of each metal fitting mounting groove 51.

  Subsequently, the aluminum electrolytic capacitor 20 and the pressing member 40 are assembled to the receiving member 30 in this order. When the aluminum electrolytic capacitor 20 is accommodated in the accommodating space 31, the attachment posture around the axis of the aluminum electrolytic capacitor 20 is determined by passing both the connection terminals 22 through the both terminal insertion grooves 35. Along with this attachment, both the connection terminals 22 are passed through the slits 65a of the capacitor side connection portions 65 of the corresponding metal fittings 60A, so that these connection portions are fixed by soldering (FIG. 13). When the pressing member 40 is assembled, as shown in FIGS. 11 and 15, each locking piece 41 is engaged with each locked portion 33, so that the pressing member 40 presses the aluminum electrolytic capacitor 20. It is held with respect to the receiving member 30. While performing these operations, other electrical elements D are mounted on the planned mounting position of the receiving member 30 on the substrate 10 or wiring is provided.

  Next, an operation of attaching the receiving member 30 assembled with each metal fitting 60, the aluminum electrolytic capacitor 20 and the pressing member 40 to the substrate 10 is performed. When the receiving member 30 is pushed toward the substrate 10 while aligning the substrate-side press-fit portions 62 of the respective metal fittings 60 with the corresponding holes 13, the substrate-side press-fit portions 62 are formed as shown in FIGS. It is press-fitted into each hole 13. At this time, the board-side press-fit portions 62A of the metal fittings 60A connected to the connection terminals 22 of the aluminum electrolytic capacitor 20 are brought into contact with the contact portions disposed on the peripheral surfaces of the both hole portions 13, thereby the aluminum electrolytic capacitor 20 Is electrically connected to the conductive path of the substrate 10. The pressing depth of the receiving member 30 and the press-fitting depth of each metal fitting 60 are such that the support portion 38 is brought into contact with the substrate 10 or the protruding portion 64 of each substrate-side press-fitting portion 62 abuts the peripheral edge of each hole portion 13. Thus, the amount is regulated to a predetermined amount. As a result, a space S of a predetermined height is secured between the receiving member 30 and the substrate 10, and other electrical elements D and wirings are accommodated therein. As described above, the receiving member 30 (aluminum electrolytic capacitor 20) is fixed to the substrate 10 in an attached state by the press-fitting and holding of the board-side press-fit portions 62 of the metal fittings 60 in the holes 13 of the substrate 10. The

  As described above, according to this embodiment, the receiving member 30 is fixed to the substrate 10 by press-fitting the board-side press-fit portions 62 of the metal fittings 60 attached to the receiving member 30 into the holes 13 of the substrate 10. Therefore, as compared with the case where the receiving member 30 is fixed by screwing, the fixing operation is easy and the workability is excellent.

  In addition, the left metal fitting 60A has a capacitor side connection portion 65 that can be connected to the connection terminal 22 of the aluminum electrolytic capacitor 20, and the substrate side press-fit portion 62A can be connected to the conductive path of the substrate 10. The function of fixing the receiving member 30 to the substrate 10 and the function of electrically connecting the aluminum electrolytic capacitor 20 to the substrate 10 can be shared by the metal fitting 60A. This makes it possible to simplify the configuration.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.
(1) As a fixing means for fixing the receiving member to the substrate, for example, an elastic piece protruding downward is provided on the bottom surface of the receiving member, and a hook portion is provided at the tip of the elastic piece, and a hole provided in the substrate On the other hand, an elastic piece may be inserted so that the hook portion is locked to the peripheral back surface side of the hole portion. In addition, for example, the receiving member may be fixed to the substrate using an adhesive.

(2) As a modification of the above-described second embodiment, the metal fitting may not be held by press fitting to the receiving member or the substrate, but may be held by soldering, for example.
(3) In each of the above-described embodiments, the case where the support portion is provided integrally with the receiving member has been described. However, the present invention includes a case where the support portion is provided separately from the receiving member. In that case, if the support portion has a structure that directly supports the aluminum electrolytic capacitor, the receiving member can be omitted. In that case, what is necessary is just to fix an aluminum electrolytic capacitor with an adhesive agent with respect to a support part. In addition, the pressing member may be attached to the substrate or the support portion, and a locking means may be provided on both.

(4) In each of the above-described embodiments, the case where the support portion is integrally provided on the receiving member side is shown, but the support portion may be integrally provided on the substrate side.
(5) In each of the above-described embodiments, the pressing portion that partially protrudes from the inner surface of the pressing member presses the aluminum electrolytic capacitor. However, the entire inner surface of the pressing member projects to press the aluminum electrolytic capacitor. What was done is also included in the present invention. It is also possible to omit the pressing member.

(6) In each of the above-described embodiments, the aluminum electrolytic capacitor has been exemplified. However, other types of capacitors may be used, and the present invention can be applied to other types of electric elements (for example, relays). The shape of the main body is not limited to a cylindrical shape, and may be a prismatic shape, for example.
(7) In the above-described embodiment, the example in which the electric element is attached to the board accommodated in the ECU is illustrated, but the present invention can also be applied to the case in which the electric element is attached to the board accommodated in another type of electrical junction box It is.

The exploded perspective view of the attachment structure of the aluminum electrolytic capacitor to the substrate concerning Embodiment 1 of the present invention The perspective view which shows the state which attached the aluminum electrolytic capacitor and the pressing member to the receiving member The perspective view which shows the state which attached the receiving member to the board | substrate Exploded cross-sectional view of mounting structure of aluminum electrolytic capacitor on board Cross-sectional view showing a state in which the aluminum electrolytic capacitor and the holding member are attached to the receiving member Cross-sectional view showing a state where the receiving member is attached to the substrate Side view showing a state in which the aluminum electrolytic capacitor and the holding member are attached to the receiving member Side view showing a state where the receiving member is attached to the substrate The exploded perspective view of the attachment structure of the aluminum electrolytic capacitor to the substrate concerning Embodiment 2 of the present invention The perspective view which shows the state which attached each metal fitting to the receiving member The perspective view which shows the state which attached the aluminum electrolytic capacitor and the pressing member to the receiving member The perspective view which shows the state which attached the receiving member to the board | substrate Front view showing a state in which each metal fitting, aluminum electrolytic capacitor and holding member are attached to the receiving member Front view showing a state in which the receiving member is attached to the substrate Side view showing a state in which each metal fitting, aluminum electrolytic capacitor and holding member are attached to the receiving member Side view showing a state where the receiving member is attached to the substrate Perspective view of conventional example

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Board | substrate 13 ... Hole 20 ... Aluminum electrolytic capacitor (electric element)
22 ... Connection terminal 30 ... Receiving member 31a ... Bottom surface (opposite surface)
33 ... Locked part (locking means)
38 ... support part 40 ... pressing member 41 ... lock piece (locking means)
43 ... Inner surface (opposite surface)
60 ... Fitting (fixing means)
62 ... Press-fit part 65 ... Capacitor side connection part (element side connection part)
D: Other electric element N ... Screw member (fixing means)
S ... space

Claims (7)

A mounting structure for a substrate of an electric element having a columnar shape,
The electrical element is attached to the substrate in a posture in which the length direction of the electrical element is along the surface of the substrate, and a support portion capable of supporting the electrical element while maintaining a predetermined space between the electrical element and the substrate. A structure for mounting an electric element to a substrate, characterized in that is provided. 2. The electric element mounting structure for a board according to claim 1, further comprising a pressing member capable of pressing the electric element from the side opposite to the board. A receiving member that is arranged on the substrate side and is capable of receiving the electric element and that is integrally provided with the support portion; and a fixing means that can fix the receiving member to the substrate. The structure for attaching an electric element to a substrate according to claim 1 or 2, characterized by the above-mentioned. 4. The pressing member is detachably attached to the receiving member, and the pressing member and the receiving member are provided with locking means capable of holding both in a mounted state. Mounting structure of electrical element to the substrate. The structure for mounting an electric element on a substrate according to claim 4, wherein the opposing surface of the receiving member and the pressing member facing the electric element is formed in a shape along the outer shape of the electric element. The said fixing means is comprised by the metal fitting which has a press-fit part press-fit with respect to the hole provided in the said board | substrate, and this metal fitting is mounted | worn with the said receiving member, It is characterized by the above-mentioned. A structure for attaching an electric element to a substrate according to any one of claims 3 to 5. The metal fitting has an element-side connection portion connectable to a connection terminal of the electric element, and the press-fitting portion is connectable to a conductive path of the substrate. Mounting structure of electrical elements to the board.

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