Power converter and detachable member for power converter

Abstract

To provide a power conversion device that easily releases an engagement state of a power conversion device body part and a power conversion device attaching / detaching member by using a tool, even when the power conversion device is arranged via a narrow gap.SOLUTION: A power conversion device comprises a power conversion device body part 10, and a power conversion device attaching / detaching member (operation panel 20) attached to the power conversion device body part in an attachable / detachable manner. The power conversion device body part comprises a body part side engagement part (engagement hole 16). The power conversion device attaching / detaching member comprises a first face 21, and a second face 22 orthogonal to the first face, that comprises an attaching / detaching member side engagement part (operation panel side engagement part 30) bent and deformed when engaging with the body part side engagement part, and releasing engagement thereof. The attaching / detaching member side engagement part comprises an engagement portion (protrusion 31) engaging with the body part side engagement part; and a recess 32 pressed inward by inserting a tip 41 of a tool 40 when releasing the engagement with the body part side engagement part, that is formed so as to be recessed inward near the engagement portion.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a power converter and a detachable member for the power converter, and more particularly to a power converter and a detachable member for the power converter including a detachable member side engaging portion. [Background technology]

[0002] BACKGROUND ART Conventionally, a power converter and a detachable member for a power converter including a detachable member-side engaging portion are known (see, for example, Patent Document 1).

[0003] The inverter device (power conversion device) described in Patent Document 1 above comprises an inverter device main body and a detachable part (detachable member for power conversion device) equipped with an external interface and detachably attached to the inverter device main body. The inverter device main body is provided with an engaged part. The detachable part is provided with an attachment. The attachment of the detachable part is provided with an engaging part (detachable member side engaging part) that engages with the engaged part of the inverter device main body. The detachable part is attached to the inverter device main body by engaging the engaging part provided on the attachment of the detachable part with the engaged part provided on the inverter device main body. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-28893 Summary of the Invention [Problem to be solved by the invention]

[0005] Although not disclosed in the above-mentioned Patent Document 1, there are cases where multiple inverter devices are arranged in a row with a relatively narrow gap between them. Furthermore, the engaged portion of the inverter device main body and the engaging portion of the detachable component detachably attached to the inverter device main body are, for example, arranged on the gap side of the adjacent inverter device. When multiple inverter devices are arranged with such a relatively narrow gap between them, it is difficult for a user to insert their finger into the gap when using their finger to disengage the engaged portion of the inverter device main body and the engaging portion of the detachable component. Therefore, it is difficult for a user to use their finger to disengage the engaged portion of the inverter device main body and the engaging portion of the detachable component and detach the detachable component from the inverter device main body. Furthermore, even if an attempt is made to disengage the engaged portion of the inverter device main body (the main body-side engaging portion) and the engaging portion of the detachable component (the detachable component-side engaging portion) by inserting the tip of a tool such as a flathead screwdriver into the gap and pressing the engaging portion of the detachable component, it is difficult to position the tip of the tool appropriately so that the engagement can be disengaged by pressing. Therefore, even if the engagement points of the inverter device main body and the detachable part are arranged via a relatively narrow gap, it is desirable to be able to easily release the engagement between the inverter device main body (power conversion device main body) and the detachable part (detachable part for the power conversion device) using a tool.

[0006] The present invention has been made to solve the above-mentioned problems, and one object of the present invention is to provide a power conversion device and a detachable member for a power conversion device that allows the engagement between the power conversion device main body and the detachable member for the power conversion device to be easily released using a tool, even when the power conversion device is placed through a narrow gap. [Means for solving the problem]

[0007] In order to achieve the above object, a power conversion device according to a first aspect of the present invention comprises a power conversion device main body and a detachable member for the power conversion device detachably attached to the power conversion device main body, wherein the power conversion device main body includes a main body side engaging portion, and the detachable member for the power conversion device has a first surface and a detachable member side engaging portion that flexes and deforms when engaging with the main body side engaging portion, and includes a second surface that intersects with the first surface, and the detachable member side engaging portion includes an engaging portion that engages with the main body side engaging portion, and a recessed portion that is formed so as to be recessed inward near the engaging portion, and is pressed inward by inserting the tip of a tool when the engagement with the main body side engaging portion is released.

[0008] In the power converter according to the first aspect of the present invention, as described above, the detachable-member-side engaging portion, which flexes and deforms when engaged with the main-body-side engaging portion, includes an engaging portion that engages with the main-body-side engaging portion and a recessed portion that is recessed inward near the engaging portion and that is pressed inward by inserting the tip of a tool into the recessed portion when disengaging from the main-body-side engaging portion. This allows the tip of a tool to be easily inserted into the recessed portion and to press the recessed portion inward. Pressing the recessed portion pushes the engaging portion inward, thereby disengaging the engaging portion from the main-body-side engaging portion. Therefore, even when the power converter is disposed across a narrow gap, the engagement between the power converter main body and the detachable-member-side engaging portion can be easily released using a tool.

[0009] In the power converter according to the first aspect, the recessed portion is preferably formed between the first surface and the engagement portion, and the recessed portion has a bottom surface that slopes inward from the first surface side toward the engagement portion side. This configuration allows the tip of a tool to be easily inserted into the recessed portion along the sloped bottom surface. This makes it easier to release the engagement between the power converter main body and the power converter detachable member using the tool.

[0010] In the power converter according to the first aspect, the recess preferably further includes a pair of side walls that guide the tool when the tool is inserted. This configuration allows the tip of the tool to be easily introduced into the recess by the guide of the pair of side walls, and also prevents the tool from shifting in a direction perpendicular to the insertion direction when pressed. This makes it easier to release the engagement between the power converter main body and the power converter detachable member using the tool.

[0011] In the power converter according to the first aspect, the second surface preferably extends from an end opposite to the first surface toward an end of the first surface, sandwiching the detachable-member-side engaging portion, and further includes a pair of slits for inwardly deflecting the detachable-member-side engaging portion, and the recessed portion is formed between the pair of slits. With this configuration, the pair of slits can easily deflect and deform the detachable-member-side engaging portion. Therefore, when pressed against the recessed portion, the detachable-member-side engaging portion can easily deflect and deform inward.

[0012] In this case, preferably, a pair of second surfaces are provided facing each other, and the detachable-member-side engaging portion including the recess and the pair of slits are formed on both of the facing second surfaces. With this configuration, the detachable power converter member can be reliably attached to the power converter main body.

[0013] In the power converter according to the first aspect, the engaging portion preferably includes a protrusion, the main body-side engaging portion preferably includes an engaging hole or a recess that engages with the protrusion, and the protrusion is configured to snap-fit ​​into the engaging hole or the recess. With this configuration, the detachable member can be easily attached to and detached from the power converter main body by being pressed to cause bending deformation.

[0014] In the above-described power converter according to the first aspect, the detachable member for the power converter preferably includes an operation panel having an operation unit for operating the power converter provided on a first surface thereof. With this configuration, when the operation panel is detached from the power converter main body and the power converter is remotely operated using the operation panel, the engagement between the power converter main body and the operation panel can be easily released.

[0015] In the power converter according to the first aspect, the detachable member for the power converter is preferably a protective cover member that is attached in place of an operation panel for operating the power converter when the operation panel is detached from the power converter main body. With this configuration, the engagement between the power converter main body and the protective cover member that has been attached in place of the operation panel can be easily released.

[0016] A detachable member for a power conversion device according to a second aspect of the present invention is configured to be detachable from a power conversion device main body included in the power conversion device, and includes a first surface and a detachable member side engaging portion that flexes and deforms when engaging with a main body side engaging portion provided on the power conversion device, and a second surface that intersects the first surface, and the detachable member side engaging portion includes an engaging portion that engages with the main body side engaging portion, and a recessed portion that is formed so as to be recessed inward near the engaging portion, and is pressed inward by inserting the tip of a tool when the engagement with the main body side engaging portion is released.

[0017] In a second aspect of the present invention, similar to the first aspect, the detachable member for a power converter according to the present invention includes an engaging portion that engages with the main body engaging portion, and a recessed portion that is recessed inward near the engaging portion and that is pressed inward by inserting the tip of a tool when disengaging from the main body engaging portion. This allows the tip of a tool to be easily inserted into the recessed portion and press the recessed portion inward. Pressing the recessed portion pushes the engaging portion inward, thereby disengaging the engaging portion from the main body engaging portion. Therefore, a detachable member for a power converter can be provided that allows the engagement between the power converter main body and the detachable member for a power converter to be easily released using a tool, even when the engagement points of the power converter main body and the detachable member for a power converter are disposed across a narrow gap. [Effects of the Invention]

[0018] According to the present invention, it is possible to provide a power conversion device and a detachable member for a power conversion device that can easily release the engagement between the power conversion device main body and the detachable member for the power conversion device using a tool, even when the power conversion device is placed through a narrow gap, as described above. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a perspective view of a power converter according to an embodiment; [Figure 2] FIG. 2 is a perspective view showing a state in which a plurality of power conversion devices are arranged in a row. [Figure 3] 1 is a side view of a power converter according to one embodiment; [Figure 4] FIG. 4 is a cross-sectional view taken along line 300-300 in FIG. [Figure 5] FIG. 2 is a view of the operation panel according to an embodiment as seen from the Y1 side. [Figure 6] FIG. 2 is a diagram of an operation panel according to an embodiment as viewed from the X1 side. [Figure 7]10A and 10B are explanatory diagrams illustrating a method for disengaging the operation panel side engaging portion from the main body side engaging portion. [Figure 8] 10 is a view of a protective cover member according to a modified example, viewed from the Y1 side. FIG. [Figure 9] FIG. 10 is a perspective view of a power conversion device according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0020] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.

[0021] [One embodiment] (Configuration of power conversion device) First, the configuration of a power conversion device 100 according to one embodiment of the present invention will be described with reference to FIGS.

[0022] As shown in FIG. 1, the power conversion device 100 includes a power conversion device main body 10 and an operation panel 20 that accepts operations on the power conversion device main body 10. The power conversion device 100 has a substantially rectangular parallelepiped shape. The shape of the power conversion device 100 is not particularly limited. The operation panel 20 is an example of a "detachable member for a power conversion device" in the claims.

[0023] As shown in Fig. 2, in this embodiment, multiple power converters 100 are arranged in a row with relatively narrow gaps between them that make it difficult for a user to insert a finger. Each power converter 100 has an engagement portion (an operation panel-side engagement portion 30 and an engagement hole 16 (see Fig. 4) described below) on a side surface 13 facing an adjacent power converter 100, which engages the operation panel 20 with the power converter main body 10. The operation panel-side engagement portion 30 is an example of a "detachable member-side engagement portion" in the claims. The engagement hole 16 is an example of a "main body-side engagement portion" in the claims.

[0024] The power converter main body 10 is, for example, an inverter main body that converts AC power input from a commercial power source and outputs the converted power to a load. As shown in Fig. 3, the power converter main body 10 includes an upper surface 11, a lower surface 12, and a side surface 13 connecting the upper surface 11 and the lower surface 12.

[0025] As shown in Fig. 4, an opening 14 that leads to the interior of the power conversion device main body 10 is formed in a part of the top surface 11 of the power conversion device main body 10. The opening 14 is formed from one end to the other end in the Y direction of the top surface 11 of the power conversion device main body 10. When the operation panel 20 is attached to the power conversion device main body 10, the opening 14 is covered by the operation panel 20. A main body side connector 15 for connecting the power conversion device main body 10 and the operation panel 20 so as to be communicatively connected is arranged in the opening 14 so as to protrude upward (in the Z1 direction) of the power conversion device main body 10.

[0026] The side surfaces 13 are provided with engagement holes 16 that engage with the operation panel side engagement parts 30. The engagement holes 16 are arranged on each of the opposing side surfaces 13, and the engagement holes 16 are arranged so as to face each other. The engagement holes 16 are holes for engaging with protrusions 31 (described later) of the operation panel side engagement parts 30, for example. In this embodiment, the protrusions 31 are configured to engage with the engagement holes 16, but the protrusions 31 may also be configured to engage with recesses instead of holes. The protrusions 31 are an example of an "engagement portion" in the claims.

[0027] The operation panel 20 is a device for operating the power conversion device main body 10. The operation panel 20 is attached so as to cover the opening 14 formed on the top surface 11 of the power conversion device main body 10. The operation panel 20 is attached to the power conversion device main body 10 in a detachable manner (attachable and detachable).

[0028] The operation panel 20 includes a first surface 21 and a second surface 22 that intersects with the first surface 21. When the operation panel 20 is attached to the power conversion device main body 10, the first surface 21 forms a part of the upper surface of the power conversion device 100. The second surface 22 is formed to extend from the periphery of the first surface 21 along a direction (Z2 direction) that is perpendicular to the first surface 21. When the operation panel 20 is attached to the power conversion device main body 10, a part of the second surface 22 forms a part of the side surface of the power conversion device 100.

[0029] The operation panel 20 includes, on a first surface 21, an operation panel substrate 24 having an operation unit 23 provided on its surface, and an operation panel-side connector 25. As shown in Fig. 5, the operation panel 20 includes, on a second surface 22, a pair of slits 26 and an operation panel-side engagement unit 30 formed between the pair of slits 26. As shown in Fig. 4, a pair of second surfaces 22 are provided facing each other, and the pair of slits 26 (see Fig. 3) and the operation panel-side engagement unit 30 are formed on both of the second surfaces 22 facing each other.

[0030] The operation panel board 24 is, for example, a printed circuit board.

[0031] The operation unit 23 includes operation buttons 23a (see FIG. 1). The operation buttons 23a are buttons for performing operations on the power conversion device main body 10, and are electrically connected to an operation panel board 24. The operation panel 20 is configured to accept input operations based on user input operations on the multiple operation buttons 23a. That is, the user can change the operation or settings of the power conversion device main body 10 by operating the operation buttons 23a.

[0032] The operation panel side connector 25 is provided on the back side of the first surface 21 so as to protrude toward the power conversion device main body side (in the Z2 direction). The operation panel side connector 25 is electrically connected to the operation panel board 24. When the operation panel 20 is attached to the power conversion device main body 10, the operation panel side connector 25 is communicably connected to the main body side connector 15. When the operation panel 20 is detached from the power conversion device main body 10, the operation panel side connector 25 is communicably connected to the main body side connector 15 via a cable (not shown). In this case, by operating the operation panel 20 detached from the power conversion device main body 10, a user can remotely control the power conversion operation by the power conversion device main body 10.

[0033] 5, the pair of slits 26 are formed in the second surface 22 so as to extend from an end opposite to the first surface 21 toward an end on the first surface 21 side (Z2 direction). The pair of slits 26 are formed so as to sandwich the operation panel side engaging portion 30. For convenience, the operation panel side connector 25 is not shown in FIG.

[0034] The operation panel side engaging portion 30 includes a protrusion 31 that engages with the engaging hole 16, and a recessed portion 32 that is recessed inward. The operation panel side engaging portion 30 is configured by a portion sandwiched between a pair of slits 26 on the second surface 22. The operation panel side engaging portion 30 is formed to protrude toward the opposite side of the first surface 21 beyond an end portion 22a of the second surface 22 that is not formed with the operation panel side engaging portion 30 and that is opposite the first surface 21. Because the operation panel side engaging portion 30 is formed to be sandwiched between the pair of slits 26, it is configured to bend and deform when engaging with and disengaging from the engaging hole 16.

[0035] The protrusion 31 is formed to protrude outward from the second surface 22. The protrusion 31 is provided on a protruding portion 33 that protrudes further from the end 22a of the second surface 22 on the side opposite to the first surface 21. The protrusion 31 is configured to snap-fit ​​into the engagement hole 16 (or recess) when engaging with the engagement hole 16.

[0036] As shown in FIG. 4, the recessed portion 32 is formed so as to be recessed inward. The recessed portion 32 is a portion that is pressed inward by inserting a tip 41 (see FIG. 7) of a tool 40 into the recessed portion 32 when the engagement with the engagement hole 16 is released. The recessed portion 32 is formed in the vicinity of the protrusion 31. The recessed portion 32 is formed between the first surface 21 and the protrusion 31. The recessed portion 32 is formed so that an end 32a on the protrusion 31 side is positioned in approximately the same straight line as the end 22a of the second surface 22. The end 32b of the recessed portion 32 on the first surface 21 side has a curved shape (see FIG. 5) in a plan view. The shape of the recessed portion 32 in a plan view is not particularly limited.

[0037] The recess 32 has a bottom surface 34 that slopes inward from the first surface 21 side toward the protrusion 31 side. The recess 32 has a bottom surface 34 that slopes inward from an end 32b on the first surface 21 side to an end 32a on the protrusion 31 side. The recess 32 also includes a pair of side walls 35 that connect the bottom surface 34 to the second surface 22 other than the recess 32 on both sides in a direction (X direction) perpendicular to the direction in which the second surface 22 is formed relative to the first surface 21 (Z direction). The pair of side walls 35 are configured to guide a tip 41 (see FIG. 7) of a tool 40 (see FIG. 7) when the tool 40 is inserted into the recess 32.

[0038] 5, the operation panel side engagement part 30 has a groove part 36 extending in a direction (X direction) perpendicular to the forming direction (Z direction) of the second surface 22 relative to the first surface 21. A plurality of groove parts 36 are provided on both sides of the recess part 32 in the X direction and between the recess part 32 and the first surface 21. The number of groove parts 36 is not particularly limited. The groove parts 36 can prevent the pad of the user's finger from slipping off the operation panel side engagement part 30 when the user's finger engages or disengages the operation panel side engagement part 30 and the engagement hole 16.

[0039] In the direction (X direction) perpendicular to the direction (Z direction) in which the second surface 22 is formed relative to the first surface 21 of the operation panel side engagement portion 30, the width W1 on the base end side is formed larger than the width W2 on the tip end side. This allows the entire pad of the user's finger to appropriately contact the operation panel side engagement portion 30 when the user's finger engages or disengages the operation panel side engagement portion 30 from the engagement hole 16.

[0040] Regarding the size of the operation panel side engagement portion 30, the ratio of the length D of the pair of slits 26 in the extension direction to the width W3 between the pair of slits 26 is, for example, D:W3=3:5. This allows the protrusions 31 to be appropriately displaced inward by a predetermined pressing force. Note that the ratio of the length D of the pair of slits 26 in the extension direction to the width W3 between the pair of slits 26 is not limited to the above ratio.

[0041] (Method of disengaging the operation panel engagement portion from the engagement hole) A method for disengaging the operation panel side engaging portion 30 from the engaging hole 16 will be described with reference to FIG.

[0042] To disengage the operation panel 20 from the power converter main body 10 by disengaging the operation panel engaging portion 30 from the engaging hole 16, insert the tip 41 of a tool 40, such as a flathead screwdriver, into the recess 32 of the operation panel engaging portion 30 formed on one of the opposing second surfaces 22. Then, press the tip 41 of the tool 40 inserted into the recess 32 inward. This causes the operation panel engaging portion 30 to bend inward, disengaging the protrusion 31 of the operation panel engaging portion 30 from the engaging hole 17. Then, move the disengaged operation panel 20 away from the power converter main body 10.

[0043] Next, the same method as above is performed on the recessed portion 32 of the operation panel-side engaging portion 30 formed on the other of the opposing second surfaces 22, thereby disengaging the protrusion 31 of the operation panel-side engaging portion 30 from the engaging hole 17, and the disengaged operation panel 20 is moved in a direction away from the power converter main body 10. Note that the same method as above may be performed simultaneously on both the recessed portions 32 formed on one and the other of the opposing second surfaces 22. As a result, the user can detach the operation panel 20 from the power converter main body 10.

[0044] In addition, if the user can insert his / her fingers into the gap between adjacent power converters 100, the user's fingers can easily release the engagement between the power converter main body 10 and the operation panel 20.

[0045] (Effects of this embodiment) In this embodiment, the following effects can be obtained.

[0046] In this embodiment, the power conversion device main body 10 includes an engagement hole 16, and the operation panel 20 has a first surface 21 and an operation panel side engagement portion 30 that flexes and deforms when engaged with the engagement hole 16, and includes a second surface 22 that intersects with the first surface 21. The operation panel side engagement portion 30 includes a protrusion 31 that engages with the engagement hole 16 and a recessed portion 32 that is recessed inward near the protrusion 31 and is pressed inward by inserting a tip 41 of a tool 40 when the engagement with the engagement hole 16 is released. This allows the tip 41 of the tool 40 to be easily inserted into the recessed portion 32 and can press the recessed portion 32 inward. When the protrusion 31 is pressed inward by pressing the recessed portion 32, the engagement between the protrusion 31 and the engagement hole 16 is released. Therefore, even if the power conversion device 100 is placed across a narrow gap, the engagement between the power conversion device main body 10 and the operation panel 20 can be easily released using the tool 40.

[0047] Furthermore, in this embodiment, as described above, the recessed portion 32 is formed between the first surface 21 and the protrusion 31, and the recessed portion 32 has a bottom surface 34 that slopes inward from the first surface 21 side toward the protrusion 31 side. This allows the tip 41 of the tool 40 to be easily introduced into the recessed portion 32 along the sloped bottom surface 34. This makes it easier to use the tool 40 to release the engagement between the power conversion device main body 10 and the operation panel 20.

[0048] Furthermore, in this embodiment, as described above, the recess 32 further includes a pair of side walls 35 that guide the tool 40 when the tool 40 is inserted. This allows the tip 41 of the tool 40 to be easily introduced into the recess 32 by being guided by the pair of side walls 35, and also prevents the tool 40 from shifting in position in a direction perpendicular to the insertion direction of the tool 40 when pressed. This makes it easier to use the tool 40 to release the engagement between the power conversion device main body 10 and the operation panel 20.

[0049] Furthermore, in this embodiment, as described above, the second surface 22 extends from the end opposite to the first surface 21 toward the end on the first surface 21 side (Z1 direction) and is formed to sandwich the operation panel side engagement portion 30, and further includes a pair of slits 26 for bending the operation panel side engagement portion 30 inward, and the recessed portion 32 is formed between the pair of slits 26. This allows the pair of slits to easily cause bending deformation of the operation panel side engagement portion 30. Therefore, when the recessed portion 32 is pressed, the operation panel side engagement portion 30 can easily bend and deform inward.

[0050] In this embodiment, as described above, a pair of second surfaces 22 are provided facing each other, and the operation panel side engaging portion 30 including the recessed portion 32 and the pair of slits 26 are formed on both of the facing second surfaces 22. This allows the operation panel 20 to be securely attached to the power conversion device main body 10.

[0051] In this embodiment, as described above, the engagement holes 16 include engagement holes 17 or recesses that engage with the protrusions 31, and the protrusions 31 are configured to snap-fit ​​into the engagement holes 17 or recesses. This allows the operation panel 20 to be easily attached to and detached from the power conversion device main body 10 by being pressed to cause bending deformation.

[0052] Furthermore, as described above, the present embodiment includes the operation panel 20 having the operation unit 23 provided on the first surface 21 for performing operations on the power conversion device 100. This allows the engagement between the power conversion device main body 10 and the operation panel 20 to be easily released when the operation panel 20 is detached from the power conversion device main body 10 and the power conversion device 100 is remotely operated using the operation panel 20.

[0053] [Variations] The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present invention is defined by the claims rather than the description of the above embodiments, and further includes all modifications (variations) within the meaning and scope of the claims.

[0054] For example, in the above embodiment, an example was shown in which the operation panel 20 was detachably attached to the power conversion device main body 10, but the present invention is not limited to this. For example, when the operation panel 20 is detached from the power conversion device main body 10 for remote operation, a protective cover member 50 (see FIG. 8) that covers the opening 14 instead of the operation panel 20 may be detachably attached to the power conversion device main body 10.

[0055] 8, the protective cover member 50 includes a relay board 51, a first connector (not shown) connected to the main body-side connector 15, and a second connector 52 connected to the operation panel-side connector 25 via a cable (not shown). These components connect the main body-side connector 15 and the operation panel-side connector 25 so that they can communicate with each other.

[0056] Like the operation panel 20 in the above embodiment, the protective cover member 50 also has a first surface 521 and a protective cover member-side engaging portion 530 that flexes and deforms when engaging with an engaging hole 16 provided in the power conversion device main body 10, and includes a second surface 522 that intersects with the first surface 521, and the protective cover member-side engaging portion 530 includes a protrusion 531 that engages with the engaging hole 16, and a recessed portion 532 that is formed so as to be recessed inward near the protrusion 531 and is pressed inward by inserting the tip 41 of the tool 40 when the engagement with the engaging hole 16 is released. Note that the other configurations of the modified example of the protective cover member 50 are the same as those of the above embodiment.

[0057] Even when the protective cover member 50 is attached in place of the operation panel, the engagement between the power conversion device main body 10 and the protective cover member 50 can be easily released, similar to the operation panel 20 in the above embodiment. The effects of the modified example of the protective cover member 50 are similar to those of the above embodiment.

[0058] In the above embodiment, the recessed portion 32 has an inclined bottom surface 34, but the present invention is not limited to this. For example, the recessed portion 32 may have a bottom surface 34 that is parallel to the second surface 22 other than the recessed portion 32.

[0059] In the above embodiment, the width W1 at the base end of the operation panel side engaging portion 30 is larger than the width W2 at the tip end in the direction (X direction) perpendicular to the direction (Z direction) in which the second surface 22 is formed relative to the first surface 21 of the operation panel side engaging portion 30, but the present invention is not limited to this. For example, the width of the operation panel side engaging portion 30 in the direction (X direction) perpendicular to the direction (Z direction) in which the second surface 22 is formed relative to the first surface 21 may be constant.

[0060] In the above embodiment, the operation panel side engaging portion 30 includes the protrusion 31, and the protrusion 31 engages with the engaging hole 16 or the recess, but the present invention is not limited to this. For example, the operation panel side engaging portion 30 may include an engaging hole or a recess, and may be configured so that a protrusion formed on the power conversion device main body 10 engages with the engaging hole or the recess.

[0061] In the above embodiment, the opening 14 is formed from one end to the other end of the top surface 11 of the power converter main body 10, and the engagement holes 16 are provided in each of the opposing side surfaces 13. However, the present invention is not limited to this. As shown in FIG. 9 , for example, the opening 14 may be formed from one end of the top surface 11 of the power converter main body 10 to between the one end and the other end, and the engagement holes 16 may be provided in the side surface 13 connected to the one end of the top surface 11 and in a side wall formed between the one end and the other end so as to face the side surface 13 connected to the one end. In this case, an insertion hole 60 is formed in a part of the top surface 11 of the power converter main body 10, into which a user's finger or a tool 40 can be inserted for disengagement. Furthermore, the operation panel side engagement portion 30 is positioned so as to be able to engage with the engagement hole 16.

[0062] Furthermore, in the above embodiment, the opening 14 is formed in a part of the top surface 11 of the power converter main body 10, and the operation panel 20 covers the opening 14 of the power converter main body 10, but the present invention is not limited to this. For example, the opening 14 may be formed in a part of the side surface 13 of the power converter main body 10, and the operation panel 20 may be configured to cover the opening 14 formed in the side surface 13 of the power converter main body 10. Even in this case, the side surface 13 connected to the opening 14 is provided with an engagement hole 16 that engages with the operation panel side engagement portion 30, and the operation panel side engagement portion 30 is disposed in the operation panel 20 at a position where it can engage with the engagement hole 16. [Explanation of symbols]

[0063] 10 Power conversion device main body 16 Engagement hole 20 Operation Panel 21 Page 1 22 Side 2 23 Control section 26 Pair of slits 30 Operation panel side engagement part 31 Protrusion 32 recess 34 Side 35 Pair of side walls 40 Tools 50 Protective cover member 100 Power conversion device

Claims

1. a power conversion device main body; a detachable member for a power converter that is detachably attached to the power converter main body, the power converter main body includes a main body side engaging portion, The detachable member for the power converter includes: The first page and a detachable member side engaging portion that is flexibly deformed when engaging with and disengaging from the main body side engaging portion, and a second surface that intersects with the first surface; A power conversion device in which the detachable member side engaging portion includes an engaging portion that engages with the main body side engaging portion, and a recessed portion that is formed so as to be recessed inward near the engaging portion and is pressed inward by inserting the tip of a tool when the engagement with the main body side engaging portion is released.

2. the recessed portion is formed between the first surface and the engagement portion, The power conversion device according to claim 1 , wherein the recessed portion has a bottom surface that slopes inward from the first surface side toward the engaging portion side.

3. The power conversion device according to claim 1 , wherein the recessed portion further includes a pair of side walls that guide the tool when the tool is inserted.

4. the second surface extends from an end opposite to the first surface toward an end of the first surface, is formed to sandwich the detachable member side engaging portion, and further includes a pair of slits for bending the detachable member side engaging portion inward, The power conversion device according to any one of claims 1 to 3, wherein the recessed portion is formed between the pair of slits.

5. The second surfaces are provided as a pair facing each other, The power conversion device according to claim 4 , wherein the detachable-member-side engaging portion including the recess and the pair of slits are formed on both of the second surfaces that face each other.

6. the engagement portion includes a protrusion, the main body side engaging portion includes an engaging hole or a recess that engages with the protrusion, The power conversion device according to any one of claims 1 to 5, wherein the protrusion is configured to snap-fit ​​into the engagement hole or the recess.

7. The power conversion device according to any one of claims 1 to 6, wherein the detachable member for the power conversion device includes an operation panel on the first surface having an operation unit for performing operations on the power conversion device.

8. The power conversion device described in any one of claims 1 to 6, wherein the detachable member for the power conversion device is a protective cover member that is attached in place of an operation panel for operating the power conversion device when the operation panel is removed from the power conversion device main body.

9. A detachable member for a power converter configured to be detachable from a power converter main body included in the power converter, The first page and a detachable member side engaging portion that is flexibly deformed when engaged with a main body side engaging portion provided on the power conversion device, and a second surface that intersects with the first surface; The detachable member for a power conversion device includes an engagement portion that engages with the main body side engagement portion, and a recess that is formed so as to be recessed inward near the engagement portion and is pressed inward by inserting the tip of a tool when the engagement with the main body side engagement portion is released.

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