JP5608454B2 - Board component fixing structure - Google Patents

Description

  The present invention relates to a substrate component fixing structure in which a plurality of components are fixed to a substrate.

  A variety of electronic devices are mounted on automobiles. In order to supply power and transmit signals to these various electronic devices, electrical junction boxes are arranged at appropriate locations in the automobile. In the present invention, a junction block (also referred to as a junction box), a fuse block (also referred to as a fuse box), and a relay block (also referred to as a relay box) are collectively referred to as an electrical connection box.

  This electric connection box has various structures depending on the type of vehicle. For example, there is an electric connection box provided with a “substrate component fixing structure 301” shown in FIG. 9 (see Patent Document 1).

  As shown in FIG. 9, the component fixing structure 301 of the substrate includes a substrate 2, a plurality of terminal blocks 304, 305, 306, 307 fixed to the substrate 2, and a plurality of terminal blocks 304, 305, 306, And a screw 10 for fixing 307 to the substrate 2.

  The terminal block 304 includes a plurality of terminals 342 and a housing 340 that holds the plurality of terminals 342. The terminal block 304 is generally called a “fuse terminal holder” because a fuse is attached to each terminal 342. The terminal blocks 305 and 306 include a plurality of terminals 352 and 362 and housings 350 and 360 holding the plurality of terminals 352 and 362. The terminal blocks 305 and 306 are generally called “connector blocks” because the connectors of the wire harness are fitted. The terminal block 307 includes a plurality of terminals 372 and a housing 370 that holds the plurality of terminals 372. The terminal block 307 is generally called an “ECU connection connector” because a connector of the ECU is fitted therein.

  Such terminal blocks 304, 305, 306, and 307 are attached to the substrate 2 by passing the screw 10 through screw attachment portions 341, 351, 361, and 371 provided at both ends of the housings 340, 350, 360, and 370. It has been. The terminal blocks 304, 305, 306, and 307 are soldered to the circuit pattern of the substrate 2 through one end portions of the terminals 342, 352, 362, and 372 being passed through the through holes of the substrate 2.

JP 2006-333583 A

  In the conventional board component fixing structure 301 described above, since the board 2 becomes hot when the terminals 342, 352, 362, and 372 are soldered or when the electrical junction box is used, the screw 10 that directly contacts the board 2 is used. There is a problem in that it is necessary to form an expensive heat-resistant material, which increases the cost. This problem also occurs in the “substrate component fixing structure” in which components other than the terminal blocks 304, 305, 306, and 307 are fixed to the substrate.

  Further, Japanese Patent Application Laid-Open No. 2006-60970 discloses a technique for integrally forming a plurality of terminal blocks and attaching the integrated object to a substrate. Since the number is multipolar, there is a problem that it is difficult to simultaneously pass these multipolar terminals through the through holes of the substrate.

  Furthermore, Japanese Patent Application Laid-Open No. 2008-53079 discloses a technique for connecting a plurality of terminal blocks formed separately from each other and attaching the connection body to a substrate. Since the number of terminals is multipolar, there is a problem that it is difficult to simultaneously pass these multipolar terminals through the through holes of the substrate.

  Accordingly, a first object of the present invention is to provide a component fixing structure for a substrate that can reduce the number of screws for fixing a plurality of components to the substrate, and the number of screws for fixing the plurality of components to the substrate. A second object of the present invention is to provide a component fixing structure for a substrate that can reduce the number of terminals and allows the terminals of a plurality of components to pass through the through-holes of the substrate smoothly.

In order to achieve the first object, the invention described in claim 1 is a substrate component fixing structure in which a plurality of components are fixed to a substrate, wherein the plurality of components are at least a first component and a second component. And the third part, the second part and the third part are arranged in the vicinity of both ends of the first part, and a pair of first parts are arranged at both ends of the first part. 1 is provided, and each of the second component and the third component is provided with a screw mounting portion that is screwed to the board, and the first fixing part is sandwiched between the board and the board. A second fixing portion for fixing the first component, and the first fixing portion and the second fixing portion are provided at positions that do not overlap the screw mounting portion, The second fixing part and the front part of the second part and the third part fixed to the board by screws By first fixed portion of said pair between a substrate is sandwiched, wherein the first component is a component fixing structure of the substrate, characterized by being fixed to the substrate.

  In order to achieve the second object, the invention described in claim 2 is the invention described in claim 1, wherein the first component, the second component, and the third component are: Each is provided with a terminal that passes through the through hole of the substrate.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the second fixed portion is separated from the substrate from the bottom surface on the substrate side of the second fixed portion. A concave portion formed in a T-shape or an L-shape when viewed from the bottom side is provided, and the first fixing portion is a T-shape or It is formed in an L shape.

  According to a fourth aspect of the present invention, in the first or second aspect of the present invention, the first fixed portion may be disposed on the substrate side from the upper surface of the first fixed portion away from the substrate. A concave portion formed in a concave shape and having a planar shape viewed from the upper surface side is formed in a T shape or an L shape, and the second fixing portion is fitted in the concave portion. It is characterized by being formed in a letter shape.

According to the invention described in claim 1, the plurality of parts are configured of at least a first part, a second part, and a third part, and the second part and the third part are included. , Disposed near both ends of the first component, and provided with a pair of first fixing portions at both ends of the first component, and each of the second component and the third component, A screw mounting portion that is screwed to the substrate; and a second fixing portion that fixes the first component by sandwiching the first fixing portion between the substrate and the first fixing portion . The second fixing portion and the second fixing portion are provided at positions that do not overlap the screw mounting portion, and the second fixing of the second component and the third component fixed to the substrate by screws. When the pair of first fixing portions are sandwiched between the portion and the substrate, the first component is attached to the base. Are fixed to, it is possible to omit the screw to secure the first component to the substrate. Therefore, it is possible to provide a component fixing structure for a substrate that can reduce the number of screws for fixing a plurality of components to the substrate.

  According to the invention described in claim 2, each of the first component, the second component, and the third component includes a terminal that is passed through the through hole of the substrate. Since a pair of first fixing portions can be sandwiched between the second fixing portion and the substrate by stacking the second component and the third component on the substrate after stacking one component on the substrate, The terminals of the parts can be smoothly passed through the through holes of the board. Accordingly, it is possible to provide a component fixing structure for a substrate that can reduce the number of screws for fixing a plurality of components to the substrate and can smoothly pass each terminal of the plurality of components through the through hole of the substrate. it can.

  According to the invention described in claim 3, the second fixing portion is formed in a concave shape on the side away from the substrate from the bottom surface of the second fixing portion on the substrate side, and from the bottom surface side. A concave portion having a T-shape or an L-shape as viewed in plan is provided, and the first fixing portion is formed in a T-shape or an L-shape that fits into the concave portion. These parts can be positioned and fixed with high accuracy.

  According to the invention described in claim 4, the first fixing portion is formed to be concave from the upper surface of the first fixing portion away from the substrate to the substrate side, and viewed from the upper surface side. The planar shape is provided with a recess formed in a T-shape or L-shape, and the second fixing portion is formed in a T-shape or L-shape that fits into the recess. Parts can be positioned and fixed with high accuracy.

It is an exploded view of the component fixation structure of the board | substrate concerning the 1st Embodiment of this invention. It is the schematic of the component fixing structure of the board | substrate shown by FIG. It is a fragmentary perspective view which shows the 1st fixing | fixed part of the component fixing structure of the board | substrate shown by FIG. 1, and the 2nd fixing | fixed part provided in the 2nd component. It is a fragmentary perspective view which shows the 1st fixing | fixed part of the component fixing structure of the board | substrate shown by FIG. 1, and the 2nd fixing | fixed part provided in the 3rd component. It is an exploded view of the component fixation structure of the board | substrate concerning the 2nd Embodiment of this invention. FIG. 6 is a schematic view of a component fixing structure of the board shown in FIG. 5. It is a fragmentary perspective view which shows the 1st fixing | fixed part of the component fixing structure of the board | substrate shown by FIG. 5, and the 2nd fixing | fixed part provided in the 2nd component. It is a fragmentary perspective view which shows the 1st fixing | fixed part of the component fixing structure of the board | substrate shown by FIG. 5, and the 2nd fixing | fixed part provided in the 3rd component. It is the schematic which shows the conventional component fixation structure of a board | substrate.

(First embodiment)
A “substrate component fixing structure” according to a first embodiment of the present invention will be described with reference to FIGS.

  A “substrate component fixing structure 1A” shown in FIG. 1 and FIG. 2 constitutes an electrical junction box that is mounted on an automobile and supplies power and transmits signals to an electronic device mounted on the automobile.

  The substrate component fixing structure 1A includes a substrate 2, a connector block 3A as a “first component”, a connector block 4A as a “first component”, and a fuse terminal holder as a “second component”. 5A, an ECU connection connector 6A as a “third component”, and four screws 10 for fixing the components 5A and 6A to the substrate 2.

  The board 2 is a printed board having a circuit pattern printed on the surface of a rectangular insulating plate. Various electronic components 19 are mounted on the substrate 2 in addition to the four components 3A, 4A, 5A, and 6A. Further, the substrate 2 has through holes 21 through which the terminals 31, 41, 51, 61 of the four components 3 </ b> A, 4 </ b> A, 5 </ b> A, 6 </ b> A are passed and electrically connected, and screw holes 22 to which the screws 10 are attached. Is provided.

  The screw 10 is made of an expensive heat-resistant material because the substrate 2 becomes hot when the terminals 31, 41, 51, 61 are soldered or when the electric junction box is used.

  The four parts 3A, 4A, 5A, and 6A are arranged along each side of the substrate 2 and fixed to the substrate 2 as shown in FIG. Further, the connector block 3A and the connector block 4A are arranged at positions facing each other. Further, the fuse terminal holder 5A and the ECU connection connector 6A are arranged at positions facing each other. Further, the fuse terminal holder 5A and the ECU connection connector 6A have one end portions disposed near both end portions of the connector block 3A and the other end portions disposed near both end portions of the connector block 4A.

  The connector block 3A includes a plurality of L-shaped terminals 31, a synthetic resin housing 30 holding the plurality of terminals 31, and a pair of first fixing portions extending from both ends of the housing 30. 32, 33. One end of the terminal 31 is passed through the through hole 21 of the substrate 2, and the other end is accommodated in the housing 30. The connector block 3A is fitted with a connector of a wire harness.

  The connector block 4A has the same configuration as the connector block 3A, and includes a plurality of L-shaped terminals 41, a synthetic resin housing 40 holding the plurality of terminals 41, and both ends of the housing 40. And a pair of first fixing portions 42 and 43 provided. One end of the terminal 41 is passed through the through hole 21 of the substrate 2, and the other end is accommodated in the housing 40. The connector block 4A is fitted with a connector of a wire harness.

  The fuse terminal holder 5 </ b> A includes a plurality of L-shaped terminals 51, a synthetic resin housing 50 holding the plurality of terminals 51, and a pair of screw attachment portions 52 extending from the outer surface of the housing 50. , And a pair of second fixing portions 53 and 54 extending from both end portions of the housing 50. One end of the terminal 51 is passed through the through hole 21 of the substrate 2, and a fuse is attached to the other end.

  The ECU connector 6A includes a plurality of terminals 61, a synthetic resin housing 60 holding the plurality of terminals 61, a pair of screw mounting portions 62 extending from the outer surface of the housing 60, and a housing 60 And a pair of second fixing parts 63 and 64 extending from both ends. One end of the terminal 61 is passed through the through hole 21 of the substrate 2, and the other end is accommodated in the housing 60. An ECU connector is fitted into the ECU connection connector 6A.

  The fuse terminal holder 5 </ b> A and the ECU connection connector 6 </ b> A described above are fixed to the substrate 2 with screws 10 through the screw mounting portions 52 and 62. Further, the connector blocks 3A and 4A described above have a pair of first terminals between the board 2 and the fuse terminal holder 5A fixed to the board 2 by screws and the second fixing parts 53, 54, 63 and 64 of the ECU connector 6A. The one fixing portion 32, 33, 42, 43 is sandwiched and fixed to the substrate 2. Thus, in the board component fixing structure 1A of the present invention, the screws for fixing the connector blocks 3A and 4A to the board 2 can be omitted, and the number of screws 10 used can be reduced.

  Next, detailed configurations of the first fixing portions 32, 33, 42, and 43 and the second fixing portions 53, 54, 63, and 64 will be described.

  As shown in FIGS. 1 to 3, the pair of second fixing portions 53 and 54 provided in the fuse terminal holder 5 </ b> A are opposed to the bottom surfaces 53 a and 54 a that contact the surface of the substrate 2 and the bottom surfaces 53 a and 54 a. It is formed in a rectangular parallelepiped shape having upper surfaces 53b and 54b and a plurality of side surfaces. Further, the second fixing portions 53 and 54 are formed concavely on the upper surfaces 53b and 54b that are separated from the substrate 2 from the bottom surfaces 53a and 54a on the substrate 2 side, and have a planar shape viewed from the bottom surfaces 53a and 54a side. Recesses 55 and 56 formed in a T-shape are provided. Moreover, the recessed parts 55 and 56 are opened to the side surfaces 53c and 54c facing the connector blocks 3A and 4A.

  The first fixing portions 32 and 42 provided at the end portions of the connector block 3A and 4A on the fuse terminal holder 5A side are the concave portions 55 and 56 of the pair of second fixing portions 53 and 54 of the fuse terminal holder 5A described above. It is formed in a T-shape that fits in.

  As shown in FIGS. 1, 2 and 4, the pair of second fixing portions 63, 64 provided on the ECU connection connector 6A includes bottom surfaces 63a, 64a that contact the surface of the substrate 2, and bottom surfaces 63a, 64a. Are formed in a rectangular parallelepiped shape having upper surfaces 63b and 64b opposite to each other and a plurality of side surfaces. Further, the second fixing portions 63 and 64 are formed in a concave shape on the upper surface 63b and 64b side away from the substrate 2 from the bottom surface 63a and 64a on the substrate 2 side, and have a planar shape viewed from the bottom surface 63a and 64a side. Concave portions 65 and 66 formed in an L shape are provided. Moreover, the recessed parts 65 and 66 are opened to the side surfaces 63c and 64c facing the connector blocks 3A and 4A.

  The first fixing portions 33 and 43 provided at the end of the connector blocks 3A and 4A on the ECU connection connector 6A side are the recesses 65 and 66 of the pair of second fixing portions 63 and 64 of the ECU connection connector 6A described above. It is formed in an L-shape that fits in.

  Next, a procedure for assembling the board component fixing structure 1A described above will be described. First, the connector blocks 3 </ b> A and 4 </ b> A are overlapped on the substrate 2, and one end portions of the terminals 31 and 41 of the connector blocks 3 </ b> A and 4 </ b> A are passed through the through holes 21 of the substrate 2. Next, the fuse terminal holder 5A is overlaid on the substrate 2 and the fuse terminal holder so that the first fixing portions 32, 42 of the connector blocks 3A, 4A fit into the recesses 55, 56 of the second fixing portions 53, 54. One end of the terminal 51 of 5A is passed through the through hole 21 of the substrate 2. In addition, the ECU connection connector 6A is overlapped on the board 2 and the ECU connection connector 6A so that the first fixing portions 33, 43 of the connector blocks 3A, 4A fit into the recesses 65, 66 of the second fixing portions 63, 64. One end of the terminal 61 is passed through the through hole 21 of the substrate 2. Finally, the screw attachment portion 52 of the fuse terminal holder 5A and the screw attachment portion 62 of the ECU connection connector 6A are screwed to the board 2 to complete the assembly of the board component fixing structure 1A.

  As described above, in the board component fixing structure 1A according to the present invention, the connector blocks 3A and 4A are overlaid on the board 2 and then the fuse terminal holder 5A and the ECU connection connector 6A are overlaid on the board 2, thereby providing the second fixing portion 53. , 54, 63, 64 and the substrate 2, the first fixing portions 32, 33, 42, 43 can be sandwiched. In addition, precision is required for the operation of passing the terminals 31, 41, 51, 61 through the through hole 21 of the board 2, but in the board component fixing structure 1A of the present invention, the fuse terminal holder 5A and the ECU connection connector 6A. By simply aligning the recesses 55, 56, 65, 66 of the second fixing portions 53, 54, 63, 64 with the first fixing portions 32, 33, 42, 43 of the connector blocks 3A, 4A, the terminals 51, 61 Since the through holes 21 are aligned with each other, the operation of passing the terminals 51 and 61 through the through holes 21 of the substrate 2 can be easily performed. Therefore, it is possible to reduce the cost by reducing the number of screws 10 used, and to provide a component fixing structure 1A for a board that can be smoothly passed through the through hole 21 of the board 2 and has a good assembly property. can do.

  Further, in the board component fixing structure 1A of the present invention, the first fixing portions 32, 33, 42, 43 of the connector blocks 3A, 4A are replaced with the second fixing portion 53 of the fuse terminal holder 5A and the ECU connection connector 6A. , 54, 63, 64 are pressed from above the substrate 2, so that the connector blocks 3 </ b> A, 4 </ b> A can be firmly fixed to the substrate 2. That is, the connector blocks 3A and 4A can be firmly fixed in the Z-axis direction of FIG. The connector blocks 3A, 4A are fixed in the X-axis direction and the Y-axis direction by the recesses 55, 56, 65, second fixing portions 53, 54, 63, 64 formed in a T-shape or L-shape. 66 and the first fixing portions 32, 33, 42, and 43. Thus, in the board component fixing structure 1A of the present invention, the connector blocks 3A and 4A can be positioned and fixed with high accuracy.

(Second Embodiment)
A “substrate component fixing structure” according to a second embodiment of the present invention will be described with reference to FIGS. 5 to 8, the same components as those in the first embodiment described above are denoted by the same reference numerals, and the description thereof is omitted.

  The “substrate component fixing structure 1B” shown in FIG. 5 and FIG. 6 constitutes an electrical junction box that is mounted on an automobile and supplies power and transmits signals to an electronic device mounted on the automobile.

  The board component fixing structure 1B includes a board 2, a connector block 3B as a “first component”, a connector block 4B as a “first component”, and a fuse terminal holder as a “second component”. 5B, an ECU connection connector 6B as a “third component”, and four screws 10 for fixing the components 5B and 6B to the substrate 2.

  The connector block 3B has the same configuration as the connector block 3A except that the first fixing portions 34 and 35 are provided instead of the first fixing portions 32 and 33 described above.

  The connector block 4B has the same configuration as the connector block 4A except that the first fixing portions 44 and 45 are provided instead of the first fixing portions 42 and 43 described above.

  The fuse terminal holder 5B has the same configuration as the fuse terminal holder 5A except that second fixing portions 57 and 58 are provided instead of the second fixing portions 53 and 54 described above.

  The ECU connection connector 6B has the same configuration as the ECU connection connector 6A except that second fixing portions 67 and 68 are provided instead of the second fixing portions 63 and 64 described above.

  The fuse terminal holder 5 </ b> B and the ECU connection connector 6 </ b> B described above are fixed to the substrate 2 with screws 10 passing through the screw mounting portions 52 and 62. Further, the connector blocks 3B and 4B described above have a pair of second terminals between the fuse terminal holder 5B and the second fixing portions 57, 58, 67 and 68 of the ECU connection connector 6B fixed to the board 2 and the board 2. The one fixing portion 34, 35, 44, 45 is sandwiched and fixed to the substrate 2. Thus, in the board component fixing structure 1B of the present invention, the screws for fixing the connector blocks 3B and 4B to the board 2 can be omitted, and the number of screws 10 used can be reduced.

  Next, detailed configurations of the first fixing portions 34, 35, 44, and 45 and the second fixing portions 57, 58, 67, and 68 will be described.

  As shown in FIGS. 5 to 7, the first fixing portions 34 and 44 provided at the end portions of the connector blocks 3 </ b> B and 4 </ b> B on the fuse terminal holder 5 </ b> B side are bottom surfaces 34 a and 44 a that contact the surface of the substrate 2. The upper surfaces 34b and 44b facing the bottom surfaces 34a and 44a and a plurality of side surfaces are formed in a rectangular parallelepiped shape. Furthermore, the first fixing portions 34 and 44 are formed to be concave from the upper surfaces 34b and 44b away from the substrate 2 to the substrate 2 side, that is, the bottom surfaces 34a and 44a side, and viewed from the upper surfaces 34b and 44b side. Concave portions 36 and 46 having a T-shaped planar shape are provided. Further, the recesses 36 and 46 are opened in the side surfaces 34c and 44c facing the fuse terminal holder 5B.

  The pair of second fixing portions 57 and 58 of the fuse terminal holder 5B is formed in a T-shape that fits into the recesses 36 and 46 of the first fixing portions 34 and 44 of the connector blocks 3B and 4B described above.

  As shown in FIGS. 5 and 8, the first fixing portions 35 and 45 provided at the end of the connector blocks 3B and 4B on the ECU connection connector 6B side include a bottom surface 35a that contacts the surface of the substrate 2, and a bottom surface. It is formed in a rectangular parallelepiped shape including upper surfaces 35b and 45b facing the surface 35a and a plurality of side surfaces. Further, the first fixing portions 35 and 45 are formed to be concave from the upper surfaces 35b and 45b away from the substrate 2 to the substrate 2 side, that is, the bottom surface 35a side, and are planar shapes viewed from the upper surfaces 35b and 45b side. Are provided with recesses 37 and 47 formed in an L shape. Moreover, the recessed parts 37 and 47 are opened to the side surfaces 35c and 45c facing the ECU connection connector 6B.

  The pair of second fixing portions 67 and 68 of the ECU connection connector 6B is formed in an L shape that fits into the concave portions 37 and 47 of the first fixing portions 35 and 45 of the connector blocks 3B and 4B described above.

  Next, a procedure for assembling the above-described board component fixing structure 1B will be described. First, the connector blocks 3 </ b> B and 4 </ b> B are overlaid on the substrate 2, and one end portions of the terminals 31 and 41 of the connector blocks 3 </ b> B and 4 </ b> B are passed through the through holes 21 of the substrate 2. Next, the fuse terminal holder 5B is overlaid on the substrate 2 and the fuse terminal holder so that the second fixing portions 57 and 58 fit into the recesses 36 and 46 of the first fixing portions 34 and 44 of the connector blocks 3B and 4B. One end of the terminal 51 of 5B is passed through the through hole 21 of the substrate 2. Further, the ECU connection connector 6B is overlapped on the board 2 and the ECU connection connector 6B so that the second fixing portions 67 and 68 are fitted in the recesses 37 and 47 of the first fixing portions 35 and 45 of the connector blocks 3B and 4B. One end of the terminal 61 is passed through the through hole 21 of the substrate 2. Finally, the screw mounting portion 52 of the fuse terminal holder 5B and the screw mounting portion 62 of the ECU connection connector 6B are screwed to the board 2 to complete the assembly of the board component fixing structure 1B.

  As described above, in the board component fixing structure 1B of the present invention, the first fixing parts 34, 35, 44, and 45 have the recesses 36 formed on the board 2 side from the upper surfaces 34b, 35b, 44b, and 45b. 37, 46, 47 are provided, so that the second fixing portions 57, 58, 67, 68 are fitted into the recesses 36, 37, 46, 47 of the first fixing portions 34, 35, 44, 45. The concave portions 36, 37, 46, and 47 can be visually observed, and the operation of fitting the second fixing portions 57, 58, 67, and 68 into the concave portions 36, 37, 46, and 47 can be easily performed.

  In the first and second embodiments described above, the screw terminal holders 5A and 5B and the ECU connection connectors 6A and 6B are provided with screw mounting portions 52 and 62, and the fuse terminal holders 5A and 5B and the ECU connection connector 6A. 6B, the connector blocks 3A, 3B, 4A, 4B were pressed from the top and fixed to the board 2, but the “part fixing structure of the board” of the present invention is screwed to the connector blocks 3A, 3B, 4A, 4B. A portion may be provided, and the fuse terminal holders 5A, 5B and the ECU connection connectors 6A, 6B may be pressed from above with the connector blocks 3A, 3B, 4A, 4B and fixed to the substrate 2.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

1A, 1B PCB component fixing structure 2 PCB 3A, 3B Connector block (first component)
4A, 4B Connector block (first part)
5A, 5B Fuse terminal holder (second part)
6A, 6B ECU connector (third part)
21 through-hole 31, 41, 51, 61 terminal 32, 33, 34, 35, 42, 43, 44, 45 first fixing part 36, 37, 46, 47 recess 53, 54, 57, 58, 63, 64 , 67, 68 Second fixing portion 55, 56, 65, 66 Recess

Claims (4)

In the component fixing structure of the substrate in which a plurality of components are fixed to the substrate,
The plurality of parts are composed of at least a first part, a second part, and a third part,
The second part and the third part are arranged near both ends of the first part;
A pair of first fixing portions are provided at both ends of the first component,
The first component is fixed to each of the second component and the third component with a screw attachment portion fixed to the substrate by a screw and the first fixing portion interposed between the substrate and the substrate. A second fixing part, and
The first fixing portion and the second fixing portion are provided at positions that do not overlap the screw mounting portion;
The pair of first fixing portions are sandwiched between the second fixing portion of the second component and the third component fixed to the substrate and the substrate, and the substrate. A component fixing structure for a substrate, wherein the component is fixed to the substrate. The board component according to claim 1, wherein each of the first part, the second part, and the third part includes a terminal that is passed through a through hole of the board. Fixed structure. The second fixing portion is formed in a concave shape on a side away from the substrate from the bottom surface of the second fixing portion on the substrate side, and a planar shape viewed from the bottom surface side is T-shaped or L-shaped. Provided with a recess formed in
3. The component fixing structure for a board according to claim 1, wherein the first fixing portion is formed in a T-shape or an L-shape that fits in the recess. 4. The first fixing portion is formed in a concave shape on the substrate side from the upper surface away from the substrate of the first fixing portion, and the planar shape viewed from the upper surface side is T-shaped or L-shaped Formed recesses,
3. The component fixing structure for a board according to claim 1, wherein the second fixing portion is formed in a T-shape or an L-shape that fits in the recess. 4.

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