JP2018196161A - Power converter - Google Patents

Description

  The present invention relates to a power conversion device, and more particularly to a power conversion device including a plurality of substrates including a connector portion.

  Conventionally, a power converter provided with a plurality of boards containing a connector part is known (for example, refer to patent documents 1).

  Patent Document 1 discloses an inverter device including a main circuit unit configured by a power semiconductor element and a control circuit unit for controlling the main circuit unit. In this inverter device, the control circuit unit includes a power printed circuit board and a control printed circuit board stacked above the power printed circuit board. The power supply printed board and the control printed board are connected to each other via a pin connector. Specifically, a pin (or hole) provided on the lower surface of the control printed circuit board is inserted into a hole (or pin) provided on the upper surface of the power printed circuit board, so that the power printed circuit board and the control print are printed. The board is connected.

JP 2006-333591 A

  However, in the inverter device described in Patent Document 1, the pin (or hole) provided on the lower surface of the control printed board is inserted into the hole (or pin) provided on the upper surface of the power printed board. The operator stacks the control printed circuit board on the power printed circuit board in a state where the pins and the holes cannot be directly seen from above. For this reason, a control printed circuit board may be laminated | stacked on a power supply printed circuit board in the state in which a pin is not normally inserted in a hole. In this case, in the test after assembling the inverter device, connection failure of the pin connector (connection failure between the pin and the hole) is recognized for the first time. That is, the inverter device described in Patent Document 1 has a problem in that the presence or absence of poor connection of the pin connector (connector portion) cannot be recognized during assembly.

  This invention was made in order to solve the above subjects, and one object of this invention is to provide the power converter device which can recognize the connection defect of a connector part at the time of an assembly. is there.

  In order to achieve the above object, a power conversion device according to one aspect of the present invention is provided with a main circuit portion, a first substrate including a first connector portion, and a stack on the first substrate, A second substrate including a second connector portion connected to the first connector portion of the first substrate; and a support member provided between the first substrate and the second substrate and supporting the second substrate. The member includes a support member side hole portion into which the first connector portion is inserted, a first convex portion projecting from the outside of the edge portion of the support member side hole portion to the second substrate side, a support member side hole portion, and a first member. And a step portion provided between the convex portions.

  In the power conversion device according to one aspect of the present invention, as described above, the step portion is provided between the support member side hole and the first convex portion. The step portion restricts the second connector portion from abutting and moving the second substrate toward the first substrate when the second connector portion is not normally connected to the first connector portion. Accordingly, when the second connector portion is not normally connected to the first connector portion, the movement of the second substrate to the first substrate side is restricted by the step portion (that is, the second connector that is in contact with the step portion). Since the portion serves as a tension rod), the second substrate is prevented from being stacked (assembled) on the first substrate in a state where the second connector portion is not normally connected to the first connector portion. As a result, the operator can recognize a connection failure between the second connector portion and the first connector portion during assembly. As a result, unlike the case where a connection failure between the second connector portion and the first connector portion is recognized after assembly, there is no need to perform reassembly work so that the connection is normally performed after assembly. Work loss can be suppressed.

  In the power conversion device according to the above aspect, preferably, the second connector portion includes a plurality of pins arranged along a predetermined direction, and the first connector portion includes a plurality of connectors into which the plurality of pins are inserted. When inserting a plurality of pins into a plurality of connector insertion hole portions, each including an insertion hole portion, if at least one of the plurality of pins is not normally inserted into the connector insertion hole portion, it is not inserted normally. The pin is configured to contact the stepped portion. Here, the pin is relatively easy to bend. Therefore, the configuration in which the bent pins that are not normally inserted contact the stepped portion prevents the second substrate from being stacked on the first substrate in a state where the pins are not normally connected to the connector insertion hole portion. This is particularly effective in terms of points.

  In this case, preferably, the second connector portion further includes a base portion on which a plurality of pins are arranged, and the plurality of pins are in a direction orthogonal to the direction in which the plurality of pins are arranged in the base portion and the first pin. The connector part is arranged to be deviated to one side of the direction along the second substrate side surface of the connector part, and the step part is a direction orthogonal to the direction in which the plurality of pins are arranged in the support member side hole part and the first part. The one connector portion is disposed on one side in the direction along the second substrate side surface. Here, the pins that are biased to the base portion are easily bent to the biased side. Therefore, the stepped portion is arranged on one side of the direction along the surface on the second board side of the first connector portion in the direction orthogonal to the direction in which the plurality of pins are arranged, which is the direction side where the pins are biased. Thus, a pin that is bent and cannot be normally inserted can be easily brought into contact with the stepped portion.

  In the power conversion device in which the second connector portion includes a plurality of pins, preferably, the step portion is provided along the arrangement direction of the plurality of pins. If comprised in this way, when any one (or a plurality) of a plurality of pins is bent and is not normally inserted into the connector insertion hole, one (or a plurality) of bent pins are replaced with a plurality of pins. It can be made to contact | abut to the level | step-difference part provided along the arrangement direction of a pin.

  In this case, preferably, the stepped portion has a wall shape provided so as to be along the arrangement direction of the plurality of pins. With this configuration, unlike the case where the plurality of stepped portions are discretely provided at predetermined intervals along the arrangement direction of the plurality of pins, the bent pins are adjacent to each other without contacting the stepped portion. It can suppress inserting between the level | step-difference parts to perform. That is, since the step portion has a wall shape, the bent pin can be reliably brought into contact with the step portion.

  In the power conversion device according to the above aspect, the height position of the stepped portion with respect to the first substrate is preferably lower than the height position of the upper end of the first connector portion with respect to the first substrate. Here, when the height position of the stepped portion with respect to the first substrate is substantially the same as the height position of the upper end of the first connector portion with respect to the first substrate (substantially flush), the step portion is not normally connected to the first connector portion. A second connector part (such as a bent state) may be inserted into a gap between the first connector part and the step part. That is, the second connector part that is not normally connected to the first connector part may not contact the step part. Therefore, in the present invention, as described above, the height position of the step portion with respect to the first substrate is set lower than the height position of the upper end of the first connector portion with respect to the first substrate. If comprised in this way, the 2nd connector part which is not normally connected to the 1st connector part (such as a bent state) can be made to contact appropriately with a level difference part.

  In the power conversion device according to the above aspect, the support member is preferably provided so as to face the first convex portion, and guides the second connector portion when connecting the second connector portion to the first connector portion. The protrusion height from the surface of the support member of the first protrusion is substantially equal to the protrusion height of the second protrusion from the surface of the support member. If comprised in this way, since the protrusion height from the surface of the support member of a 1st convex part is substantially equal to the protrusion height from the surface of the support member of a 2nd convex part, a 2nd connector part is a 1st connector. The second substrate can be supported by the first convex portion and the second convex portion when normally connected to the portion. As a result, rattling of the second substrate can be suppressed.

  In the power conversion device according to the above aspect, the first convex portion is preferably inserted into the second substrate in a state where the second connector portion of the second substrate is connected to the first connector portion of the first substrate. In addition, a second substrate side hole that exposes the first convex portion is provided. If comprised in this way, when a 2nd connector part is normally connected to the 1st connector part, a 1st convex part will be inserted in a 2nd board | substrate side hole, and will be exposed. Thus, the operator visually confirms that the second connector portion is normally connected to the first connector portion by visually observing that the first convex portion is exposed from the second board side hole portion. Can be recognized.

  In this case, preferably, the support member further includes a second convex portion that is provided to face the first convex portion and guides the second connector portion when the second connector portion is connected to the first connector portion. The protruding height of the first convex portion from the surface of the support member is higher than the protruding height of the second convex portion from the surface of the support member. If comprised in this way, when the 2nd connector part is normally connected to the 1st connector part, in the state where the 2nd substrate was supported by the 2nd convex part, the projection height is higher than the 2nd convex part. The first convex portion can be inserted into the second substrate side hole portion and exposed.

  According to the present invention, as described above, connection failure of the connector portion can be recognized during assembly.

It is a disassembled perspective view of the power converter device by 1st Embodiment. It is a top view of the power converter by a 1st embodiment. FIG. 3 is a cross-sectional view taken along line 200-200 in FIG. 2. It is a perspective view of the convex part provided in the supporting member of the power converter device by 1st Embodiment. It is a top view (schematic diagram) of a convex part provided in a support member of a power converter by a 1st embodiment. It is a figure which shows the back surface side (side in which a connector part is provided) of the board | substrate of the power converter device by 1st Embodiment. It is a perspective view of the connector part (a base part, a pin) of the power converter by a 1st embodiment. It is a perspective view which shows the state before inserting a pin in the hole of a connector part. It is a side view (schematic diagram) showing a state where a pin is bent. It is a side view (schematic diagram) which shows the state where the bent pin contacts the level difference part. It is sectional drawing of the power converter device by 2nd Embodiment. It is a side view (schematic diagram) which shows the state where the bent pin contacts the level difference part.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings.

  With reference to FIGS. 1-10, the structure of the power converter device 1 by 1st Embodiment is demonstrated. The power conversion device 1 is, for example, an inverter device.

  As shown in FIGS. 1 and 2, the power conversion apparatus 1 includes a substrate 10 on which a main circuit unit 11 is provided. The main circuit unit 11 is composed of a power semiconductor element or the like. The main circuit unit 11 is placed above a cooling fin (not shown), and heat generated from the main circuit unit 11 is radiated by the cooling fin. The substrate 10 is an example of the “first substrate” in the claims.

  Further, the board 10 is provided with a connector portion 12. Two connector parts 12 (connector parts 12a and 12b) are provided. The connector parts 12a and 12b are arranged side by side along the Y direction. The configurations of the connector portions 12a and 12b are substantially the same. The connector parts 12, 12a and 12b are examples of the “first connector part” in the claims.

  Further, as shown in FIG. 3, the connector portion 12 is arranged on the surface of the substrate 10 (Z1 direction side). The connector portion 12 has a substantially prismatic shape (specifically, a prismatic shape bent in a U-shape, FIGS. 4 and 5). The connector portion 12 is disposed along the X direction.

  As shown in FIGS. 4 and 5, the connector portion 12 includes a plurality of hole portions 13 into which a plurality of pins 23 of the connector portion 21 described later are inserted. The plurality of holes 13 are arranged along the X direction. Each hole 13 has a hole shape extending along the Z direction. Further, the plurality of hole portions 13 are in a direction perpendicular to the X direction in which a plurality of pins 23 to be described later are arranged and on one side in the Y direction along the surface 12c on the board 20 side of the connector portion 12 (Y1 direction side) It is arranged to be biased. The hole 13 is an example of the “connector insertion hole” in the claims.

  As shown in FIG. 1, the power conversion device 1 includes a substrate 20 provided to be stacked on the substrate 10. The substrate 20 is disposed on the Z1 direction side of the substrate 10. The substrate 20 is provided with a gate drive circuit for driving the power semiconductor elements constituting the main circuit unit 11. The substrate 20 is an example of the “second substrate” in the claims.

  Further, as shown in FIG. 6, the substrate 20 includes a connector portion 21 connected to the connector portion 12 of the substrate 10. Two connector parts 21 (connector parts 21a and 21b) are provided so as to correspond to the two connector parts 12a and 12b. The connector parts 21a and 21b are arranged side by side along the Y direction. The configurations of the connector portions 21a and 21b are substantially the same as each other. Moreover, the connector part 21 is arrange | positioned on the back surface (Z2 direction side) of the board | substrate 20. As shown in FIG. The connector parts 21, 21a and 21b are examples of the “second connector part” in the claims.

  Further, as shown in FIG. 7, the connector portion 21 includes a base portion 22 and a plurality of pins 23 arranged on the base portion 22. The base portion 22 has a substantially rectangular parallelepiped shape. The base portion 22 is disposed along the X direction. The plurality of pins 23 are arranged along the X direction in the base portion 22. Further, the plurality of pins 23 is one side (Y1 direction side) in a direction perpendicular to the X direction in which the plurality of pins 23 are arranged and along the surface 12c (see FIG. 4) of the connector portion 12 on the board 20 side. ).

  As shown in FIG. 3, the power conversion device 1 includes a support member 30 that is provided between the substrate 10 and the substrate 20 and supports the substrate 20. The support member 30 is made of, for example, a resin. The support member 30 includes a hole portion 31 into which the connector portion 12 is inserted. Two holes 31 (holes 31a and 31b) are provided so as to correspond to the two connector parts 12a and 12b. The hole portion 31 has a shape corresponding to the shape of the connector portion 12 in plan view. That is, the hole 31 has a substantially U shape (see FIG. 5) in plan view. The holes 31, 31a and 31b are examples of the “support member side hole” in the claims.

  As shown in FIG. 3, the support member 30 has a flat plate shape, and a hole portion 31 is constituted by a circumferential wall portion 32 protruding from the back surface of the support member 30.

  As shown in FIG. 3, the support member 30 includes a convex portion 34 that protrudes from the outer side of the edge portion 33 of the hole portion 31 toward the substrate 20. Here, in the first embodiment, the support member 30 includes a stepped portion 35 provided between the hole portion 31 and the convex portion 34. The step portion 35 is configured to restrict the connector 20 from abutting (see FIG. 10) and moving the substrate 20 toward the substrate 10 when the connector portion 21 is not normally connected to the connector portion 12. Yes. Specifically, when each of the plurality of pins 23 is inserted into the plurality of hole portions 13 and at least one of the plurality of pins 23 is not normally inserted into the hole portion 13, the pins that are not normally inserted 23 is configured to contact the stepped portion 35. The convex portion 34 is an example of the “first convex portion” in the claims.

  Further, in the first embodiment, the stepped portion 35 is formed in the Y direction along the surface 12c of the connector portion 12 on the board 20 side in a direction orthogonal to the X direction in which the plurality of pins 23 are arranged. It is arranged on one side (Y1 direction side). That is, the stepped portion 35 is arranged on the same direction side as the Y1 direction side in which the plurality of pins 23 are arranged to be biased in the base portion 22.

  In the first embodiment, as shown in FIG. 5, the stepped portion 35 is provided along the arrangement direction (X direction) of the plurality of pins 23. Further, the step portion 35 has a wall shape provided so as to be along the arrangement direction of the plurality of pins 23. Specifically, in plan view, the convex portion 34 is provided in a substantially linear shape so as to follow a substantially linear side surface of the hole portion 31 on the Y1 direction side. Moreover, the convex part 34 has the wall shape provided so that the X direction might be followed. And the level | step-difference part 35 is provided between the side surface by the side of the Y1 direction of the hole part 31, and the convex part 34 provided so that a X direction may be followed.

  In the first embodiment, as shown in FIG. 3, the height position h1 of the stepped portion 35 with respect to the substrate 10 is the height position h2 of the end portion (surface 12c) of the connector portion 12 on the substrate 20 side with respect to the substrate 10. Lower than. For example, the height position h <b> 1 of the stepped portion 35 is located closer to the substrate 20 than the central portion in the Z direction of the connector portion 12.

  Further, as shown in FIG. 5, the width W1 in the Y direction of the stepped portion 35 is larger than the width W2 in the Y direction of the hole 13 (the width W6 of the pin 23 in the Y direction, see FIG. 3). Moreover, as shown in FIG. 3, the boundary part of the level | step-difference part 35 and the convex part 34 has R shape. Further, as shown in FIG. 5, the end portions on the X1 direction side and the X2 direction side of the stepped portion 35 are connected to a convex portion 36 described later. Further, the width W3 in the X direction of the step portion 35 is larger than the width W4 in the X direction of the connector portion 12.

  As shown in FIG. 3, the support member 30 includes a convex portion 36 provided to face the convex portion 34. The convex portion 36 has a function of guiding the connector portion 21 when the connector portion 21 is connected to the connector portion 12. Specifically, the convex portion 36 is provided so as to protrude from the edge portion 33 of the hole portion 31 toward the substrate 20 side. That is, the inner side surface of the hole 31 and the surface of the convex portion 36 on the Y1 direction side are substantially flush. The convex portion 36 is an example of the “second convex portion” in the claims.

  Moreover, as shown in FIG. 4, the convex part 36 has a wall shape along the outer periphery of the substantially U-shaped hole 31. And the convex part 34 and the convex part 36 are formed (connected) continuously. Thereby, the convex portion 34 and the convex portion 36 are configured to surround the hole portion 31. Further, the convex portion 34 and the convex portion 36 are formed integrally with the support member 30.

  And in 1st Embodiment, as shown in FIG. 3, the protrusion height h3 from the surface of the supporting member 30 of the convex part 34 is substantially equal to the protrusion height h4 from the surface of the supporting member 30 of the convex part 36. . That is, the upper surface (surface on the Z1 direction side) of the convex portion 34 formed continuously (connected) and the upper surface of the convex portion 36 (surface on the Z1 direction side) are formed substantially flat. Further, the base side portion (the Z2 direction side portion) of the convex portion 36 has an R shape. In the state where the substrate 20 is laminated on the substrate 10, the protrusions 34 and 36 and the substrate 20 are separated from each other.

  Further, a gap C is provided between the connector portion 12 and the hole portion 31. For example, the width W5 of the gap C in the Y direction is larger than the width W6 of the pin 23 in the Y direction. By providing the gap C, it is possible to prevent the connector portion 12 from being inserted into the hole portion 31 due to a dimensional error of the hole portion 31 (a dimensional error of the connector portion 12).

  As shown in FIG. 1, a hole 37 into which an element (such as a transformer) provided on the substrate 10 is inserted is provided near the center of the support member 30. As shown in FIG. 2, a hole 24 into which an element (such as a transformer) provided on the substrate 10 is inserted is also provided near the center of the substrate 20.

  Next, the case where the pin 23 of the connector part 21 is not normally connected to the hole part 13 of the connector part 12 is demonstrated with reference to FIGS.

  First, as shown in FIG. 8, in order to connect the connector part 21 to the connector part 12, the board | substrate 20 is moved to the board | substrate 10 side. Here, as shown in FIG. 9, when the pin 23 is not normally connected to the hole portion 13, for example, the pin 23 may abut against the surface 12 c of the connector portion 12 and the pin 23 may be bent in the Y1 direction side. . In addition, since the pin 23 is disposed in the base portion 22 so as to be biased toward the Y1 direction, the pin 23 is easily bent toward the Y1 direction. Then, as shown in FIG. 10, the bent pin 23 comes into direct contact with the step portion 35 by moving the substrate 20 further toward the substrate 10 side. Alternatively, the bent pin 23 contacts the convex portion 34 and then contacts the stepped portion 35. This restricts the movement of the substrate 20 toward the substrate 10 side. As a result, the operator can recognize that the pin 23 is not normally connected to the hole 13.

(Effect of 1st Embodiment)
In the first embodiment, the following effects can be obtained.

  In the first embodiment, as described above, the step portion 35 is provided between the hole portion 31 and the convex portion 34. The step portion 35 restricts the connector portion 21 from abutting and moving the substrate 20 toward the substrate 10 when the connector portion 21 is not normally connected to the connector portion 12. Thereby, when the connector part 21 is not normally connected to the connector part 12, the movement of the board | substrate 20 to the board | substrate 10 side is controlled by the level | step-difference part 35 (that is, the connector part 21 contact | abutted to the level | step-difference part 35 stretches. Since the connector portion 21 is not normally connected to the connector portion 12, it is possible to prevent the substrate 20 from being stacked (assembled) on the substrate 10. As a result, the operator can recognize a connection failure between the connector portion 21 and the connector portion 12 during assembly. Thus, unlike the case where a connection failure between the connector part 21 and the connector part 12 is recognized after assembly, there is no need to perform reassembly work so that the connection is normally performed after assembly. Can be suppressed.

  In the first embodiment, as described above, when each of the plurality of pins 23 is inserted into the plurality of hole portions 13, at least one of the plurality of pins 23 is not normally inserted into the hole portion 13. In this case, the pin 23 that is not normally inserted is configured to abut on the stepped portion 35. Here, the pin 23 is relatively easy to bend. Therefore, the configuration in which the pin 23 that is bent and is not normally inserted comes into contact with the step portion 35 prevents the substrate 20 from being stacked on the substrate 10 in a state where the pin 23 is not normally connected to the hole portion 13. This is particularly effective in terms of points.

  In the first embodiment, as described above, the plurality of pins 23 are arranged on the base portion 22 on the surface 12c on the board 20 side of the connector portion 12 in a direction orthogonal to the direction in which the plurality of pins 23 are arranged. The step portion 35 is arranged on one side of the direction along the direction, and the step portion 35 is formed on the surface 12c of the connector portion 12 on the board 20 side in a direction orthogonal to the direction in which the plurality of pins 23 are arranged. It is arranged on one side in the direction along. Here, the pin 23 which is arranged to be biased to the base portion 22 is easily bent to the biased side. Therefore, the stepped portion 35 is arranged on one side of the direction along the surface 12c on the board 20 side of the connector portion 12 in the direction orthogonal to the direction in which the plurality of pins 23 are arranged, which is the direction side where the pins 23 are biased. By doing so, the pin 23 that is bent and cannot be normally inserted can be easily brought into contact with the stepped portion 35.

  In the first embodiment, as described above, the stepped portion 35 is provided along the arrangement direction of the plurality of pins 23. Accordingly, when any one (or a plurality) of the plurality of pins 23 is bent and is not normally inserted into the hole portion 13, the bent one (or a plurality of) pins 23 are changed to the plurality of pins 23. It can be brought into contact with the stepped portion 35 provided along the arrangement direction.

  Further, in the first embodiment, as described above, the step portion 35 has a wall shape provided so as to be along the arrangement direction of the plurality of pins 23. Thus, unlike the case where the plurality of step portions 35 are discretely provided at predetermined intervals along the arrangement direction of the plurality of pins 23, the bent pins 23 are adjacent to each other without contacting the step portions 35. It can suppress inserting between the level | step-difference part 35 to perform. That is, since the step portion 35 has a wall shape, the bent pin 23 can be reliably brought into contact with the step portion 35.

  In the first embodiment, as described above, the height position h1 of the step portion 35 with respect to the substrate 10 is lower than the height position h2 of the upper end of the connector portion 12 with respect to the substrate 10. Here, when the height position h1 of the stepped portion 35 with respect to the substrate 10 is substantially the same (substantially flush) with the height position h2 of the upper end of the connector portion 12 with respect to the substrate 10, it is not normally connected to the connector portion 12 ( In some cases, the connector portion 21 (such as a bent state) is inserted into the gap C between the connector portion 12 and the stepped portion 35. That is, the connector portion 21 that is not normally connected to the connector portion 12 may not contact the stepped portion 35. Therefore, in the first embodiment, as described above, the height position h1 of the step portion 35 with respect to the substrate 10 is set lower than the height position h2 of the upper end of the connector portion 12 with respect to the substrate 10. Thereby, the connector part 21 that is not normally connected to the connector part 12 (such as a bent state) can be appropriately brought into contact with the step part 35.

  In the first embodiment, as described above, the protrusion height h3 of the protrusion 34 from the surface of the support member 30 is substantially equal to the protrusion height h4 of the protrusion 36 from the surface of the support member 30. As a result, the protrusion height h3 of the convex portion 34 from the surface of the support member 30 is substantially equal to the protrusion height h4 of the convex portion 36 from the surface of the support member 30. When connected, the substrate 20 can be supported by the convex portion 34 and the convex portion 36. As a result, rattling of the substrate 20 can be suppressed.

[Second Embodiment]
Next, with reference to FIG. 11 and FIG. 12, the power converter device 100 by 2nd Embodiment is demonstrated. In the power conversion device 100, a hole 125 is provided in the substrate 120.

  As shown in FIG. 11, the support member 130 of the power conversion device 100 is provided with a protrusion 134 that protrudes from the outer side of the edge 133 of the hole 131 toward the substrate 120. Here, in 2nd Embodiment, the protrusion height h11 from the surface of the supporting member 130 of the convex part 134 is higher than the protrusion height h12 from the surface of the supporting member 130 of the convex part 136. FIG. Specifically, the protrusion height h11 is higher than the protrusion height h12 by the thickness t of the substrate 120 (or a thickness smaller than the thickness t). The hole 131 is an example of the “support member side hole” in the claims. The convex portion 134 is an example of the “first convex portion” in the claims. The convex 136 is an example of the “second convex” in the claims.

  In the second embodiment, the substrate 120 is provided with a hole 125. The hole 125 is configured so that the convex portion 134 is inserted and the convex portion 134 is exposed while the connector portion 21 of the substrate 120 is connected to the connector portion 12 of the substrate 10. Two holes 125 are provided so as to correspond to the two connector portions 12a and 12b. The hole 125 has a shape (substantially rectangular shape) corresponding to the convex portion 34 in plan view. The hole 125 is an example of the “second substrate side hole” in the claims.

  Next, with reference to FIG. 12 (FIG. 11), the case where the pin 23 of the connector part 21 is not normally connected to the hole part 13 of the connector part 12 (when normally connected) will be described.

  First, in order to connect the connector part 21 to the connector part 12, the board | substrate 120 is moved to the board | substrate 10 side. Here, when the pin 23 is not normally connected to the hole 13, the pin 23 is bent in the Y1 direction side. Then, the bent pin 23 comes into contact with the stepped portion 135 by moving the substrate 120 further to the substrate 10 side. Accordingly, the movement of the substrate 120 toward the substrate 10 is restricted, so that the convex portion 134 is not inserted into the hole portion 125. As a result, the operator can recognize that the pin 23 is not normally connected to the hole 13. Further, the operator can visually recognize the state of the pin 23 from the hole 125 (whether the pin 23 is normally connected to the hole 13).

  On the other hand, as shown in FIG. 11, when the connector part 21 of the board 120 is normally connected to the connector part 12 of the board 10, the convex part 134 is inserted into the hole part 125 and the convex part 134 is inserted into the hole part 125. Exposed from.

(Effect of 2nd Embodiment)
In the second embodiment, the following effects can be obtained.

  In the second embodiment, as described above, the convex portion 134 is inserted and the convex portion 134 is exposed to the substrate 120 in a state where the connector portion 21 of the substrate 120 is connected to the connector portion 12 of the substrate 10. A hole 125 is provided. Thereby, when the connector part 21 is normally connected to the connector part 12, the convex part 134 is inserted in the hole part 125 and exposed. As a result, the operator can visually recognize that the connector part 21 is normally connected to the connector part 12 by visually observing that the convex part 134 is exposed from the hole part 125.

  In the second embodiment, as described above, the protruding height h11 of the convex portion 134 from the surface of the support member 130 is higher than the protruding height h12 of the convex portion 136 from the surface of the support member 130. Thereby, when the connector part 21 is normally connected to the connector part 12, the protruding part 134 having a protruding height h <b> 11 higher than the protruding part 136 is formed in the hole part 125 while the substrate 120 is supported by the protruding part 136. It can be inserted and exposed.

[Modification]
The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiment but by the scope of claims for patent, and further includes all modifications (modifications) within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the first and second embodiments, the example in which the pin 23 is provided in the connector portion 21 has been described, but the present invention is not limited to this. For example, the connector part 21 may be provided with a connection terminal having a shape other than the pin 23.

  Moreover, in the said 1st and 2nd embodiment, although the example in which the pin 23 was biased and arrange | positioned in the Y1 direction side in the base part 22 was shown, this invention is not limited to this. For example, the pin 23 may be arranged at the approximate center (substantially the center in the Y direction) of the base portion 22. Further, the pins 23 may be arranged in the base portion 22 so as to be biased toward the Y2 direction. In this case, the step portion 35 (step portion 135) is disposed on the Y2 direction side of the hole portion 31 (hole portion 131).

  Moreover, in the said 1st and 2nd embodiment, although shown about the example in which the some pin 23 is provided, this invention is not limited to this. For example, the number of pins 23 may be one.

  In the first and second embodiments, the stepped portion 35 (stepped portion 135) has been shown as an example having a wall shape provided along the arrangement direction of the plurality of pins 23. Not limited to. For example, the plurality of stepped portions may be arranged discretely (stepping stone shape) along the arrangement direction of the plurality of pins 23.

  In the first and second embodiments, the example in which the convex portion 34 (the convex portion 134) and the convex portion 36 (the convex portion 136) are continuously formed has been described. Not limited. For example, the convex part 34 (convex part 134) and the convex part 36 (convex part 136) may be formed discretely.

  Moreover, in the said 1st and 2nd embodiment, although the example in which the two connector parts 12 (connector part 21) were provided was shown, this invention is not limited to this. The number of connector parts 12 (connector parts 21) may be one, or three or more.

1, 100 Power converter 10 Substrate (first substrate)
11 Main circuit portion 12, 12a, 12b Connector portion (first connector portion)
12c surface 13 hole (connector insertion hole)
20 substrate (second substrate)
21, 21a, 21b Connector part (second connector part)
22 base part 23 pin 30 support member 31, 31a, 31b, 131 hole (support member side hole)
33, 133 Edge 34, 134 Convex (first convex)
35, 135 Step part 36, 136 Convex part (second convex part)
125 hole (second board side hole)

Claims (9)

A first circuit board provided with a main circuit part and including a first connector part;
A second substrate including a second connector portion provided to be stacked on the first substrate and connected to the first connector portion of the first substrate;
A support member provided between the first substrate and the second substrate and supporting the second substrate;
The support member includes a support member side hole portion into which the first connector portion is inserted, a first convex portion projecting from the outer side of the edge portion of the support member side hole portion to the second substrate side, and the support member A power conversion device including a step portion provided between a side hole portion and the first convex portion. The second connector part includes a plurality of pins arranged along a predetermined direction,
The first connector portion includes a plurality of connector insertion holes into which a plurality of the pins are inserted,
When inserting a plurality of the pins into the plurality of connector insertion holes, respectively, if at least one of the plurality of pins is not normally inserted into the connector insertion hole, the pins are not inserted normally The power converter according to claim 1, wherein the power converter is configured to abut against the stepped portion. The second connector part further includes a base part on which a plurality of the pins are arranged,
The plurality of pins are arranged in the base portion in a direction orthogonal to the direction in which the plurality of pins are arranged and are biased toward one side in a direction along the second substrate side surface of the first connector portion. Has been
The stepped portion is on the one side of the support member side hole in a direction perpendicular to a direction in which the plurality of pins are arranged and along a surface of the first connector portion on the second substrate side. The power converter according to claim 2, which is arranged.   The power converter according to claim 3, wherein the stepped portion is provided along an arrangement direction of the plurality of pins.   The power converter according to claim 4, wherein the stepped portion has a wall shape provided so as to be along an arrangement direction of the plurality of pins.   The height position of the step portion with respect to the first substrate is lower than the height position of the end portion on the second substrate side of the first connector portion with respect to the first substrate. The power converter according to item. The support member further includes a second convex portion that is provided to face the first convex portion and guides the second connector portion when the second connector portion is connected to the first connector portion,
The protrusion height from the surface of the support member of the first protrusion is approximately equal to the protrusion height of the second protrusion from the surface of the support member. Power converter.   The first convex portion is inserted into the second substrate in a state where the second connector portion of the second substrate is connected to the first connector portion of the first substrate. The power converter of any one of Claims 1-7 in which the 2nd board | substrate side hole part which exposes is provided. The support member further includes a second convex portion that is provided to face the first convex portion and guides the second connector portion when the second connector portion is connected to the first connector portion,
The power conversion device according to claim 8, wherein a protrusion height of the first protrusion from the surface of the support member is higher than a protrusion height of the second protrusion from the surface of the support member.

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