Power conversion device

Abstract

The present application provides a kind of power conversion device.The power conversion device is provided with cover member, the cover member includes the connecting part for connecting the equipment outside the device and the fixing part for fixing the cover member to the shell for power conversion, which can be elastically deformed.By making the fixing part inserted into the insertion part provided in the outer surface part in an elastically deformed state, the cover member is installed on the outer surface part.And, on either of the inner surfaces of the fixing part and the insertion part, a protruding part is provided, which abuts against the other of the inner surfaces of the fixing part and the insertion part, and the protruding part has a width smaller than that of the fixing part.

Description

TECHNICAL FIELD

[0001] The present application relates to a power conversion device, and particularly to a power conversion device provided with a connection portion for connecting an external device. BACKGROUND

[0002] Conventionally, a power supply device provided with a connection terminal for connecting an external device is known. Such a power supply device is disclosed in, for example, Japanese Patent Application Publication No. 2020-054179.

[0003] The power supply device described in Japanese Patent Application Publication No. 2020-054179 is provided with a power supply portion including a rectification circuit, a MOSFET (metal-oxide-semiconductor field-effect transistor), and a transformer. The power supply portion converts alternating-current power input from an alternating-current power supply into direct-current power and outputs it. In addition, the power supply device is provided with a connection terminal and is configured to be able to communicate with an external device such as a PC (personal computer) via a connection cable. The power supply device described in Japanese Patent Application Publication No. 2020-054179 is configured to input a signal from the external device and output information with respect to the external device.

[0004] In this regard, the power supply device (power conversion device) described in Japanese Patent Application Publication No. 2020-054179 is sometimes disposed in a factory or outdoors or the like in an environment in which foreign matter such as dust is contained in the atmosphere. In this case, in order to suppress the mixing of foreign matter into a portion (connection portion) for connecting an external device, which is provided on the outer surface of the power supply device, such as a connection terminal, it is conceivable to provide a cover member that covers the connection portion. However, in the case where the cover member that covers the connection portion is provided, there is a problem in that, since a new structure (member) such as a fastening member (screw) is provided in order to fix the cover member to the outer surface of the power supply device, the number of components increases and the burden of assembly work increases. SUMMARY

[0005] PROBLEMS TO BE SOLVED BY THE INVENTION

[0006] The present application has been made in order to solve the above-described problems, and an object of the present application is to provide a power conversion device that does not increase the number of components in order to fix a cover member that covers a connection portion for connecting an external device and that can easily perform assembly work even in the case where the cover member is provided.

[0007] In order to achieve the above object, one aspect of the present application provides a power conversion device including: a power conversion housing including an outer surface portion in which a connection portion for connecting an external device is provided, and a power conversion portion configured inside the power conversion housing, the power conversion portion performing a power conversion operation of converting input power and outputting the power; and a cover member including a cover portion covering the connection portion and a fixing portion capable of elastically deforming for fixing the cover member to the power conversion housing, the cover member being mounted to the outer surface portion by inserting the fixing portion in an elastically deformed state into an insertion portion provided independently of the connection portion in the outer surface portion, a protrusion portion being provided in either one of the fixing portion of the cover member and an inner surface of the insertion portion provided in the outer surface portion, the protrusion portion abutting the other of the fixing portion of the cover member and the inner surface of the insertion portion provided in the outer surface portion, and the protrusion portion having a width smaller than a width of the fixing portion in a direction orthogonal to a direction in which the other is abutted.

[0008] In the power conversion device of one aspect of the present application, as described above, the fixing portion of the cover member is inserted into the insertion portion provided on the outer surface portion independently of the connection portion in an elastically deformed state, thereby mounting the cover member to the outer surface portion. Further, either one of the fixing portion of the cover member and the inner surface of the insertion portion provided on the outer surface portion is provided with a protruding portion that abuts against the other one of the fixing portion of the cover member and the inner surface of the insertion portion provided on the outer surface portion, and the protruding portion has a width smaller than that of the fixing portion in a direction orthogonal to the direction in which the other one is abutted. Thus, by abutting the protruding portion provided on either one of the fixing portion and the inner surface of the insertion portion against the other one of the fixing portion and the inner surface of the insertion portion, the fixing portion can be pressed. That is, the fixing portion can be pressed into the insertion portion. Therefore, unlike the case where a fastening member (screw) or the like is independently provided in order to fix the fixing portion inserted into the insertion portion, the cover member can be fixedly mounted to the power conversion housing using the inner surface of the insertion portion provided on the outer surface portion of the power conversion housing and the fixing portion of the cover member without providing a new member such as a screw. In addition, in the case where the fixing portion is inserted into and fixed to the insertion portion, the fixing portion is inserted into the insertion portion in a state of being pressed by the protruding portion having a width smaller than that of the fixing portion. Therefore, the area of the contact surface between the fixing portion and the inner surface of the insertion portion can be reduced using the protruding portion. In addition, since the width of the protruding portion is smaller than that of the fixing portion, the fixing portion can be easily elastically deformed when the fixing portion is inserted into the insertion portion. Thus, the force required for pressing the fixing portion into the insertion portion can be reduced, and thus the assembly work of inserting the fixing portion and fixing it can be easily performed. As a result, even in the case where the cover member that covers the connection portion for connecting to an apparatus outside the device is provided, the number of components can not be increased in order to fix the cover member, and the assembly work can be easily performed.

[0009] In the power conversion device of the above one aspect, it is preferable that the protruding portion provided on either one of the fixing portion and the inner surface of the insertion portion include a surface shape in which a corner portion is chamfered or a surface shape having a rounded corner. If so configured, unlike the case where a corner portion is included in the surface shape of the protruding portion, the surface of one of the fixing portion and the inner surface of the insertion portion, which is not provided with the protruding portion, can be prevented from being damaged by the corner portion of the protruding portion. Therefore, the surface portion of the inner surface of the fixing portion or the insertion portion can be prevented from being deteriorated by being damaged by the corner portion of the protruding portion.

[0010] In this case, it is preferable that the protruding portion be provided with a semicircular surface shape, and that the semicircular curved surface of the protruding portion abut against the other. If so configured, since the protruding portion abuts against the other by the semicircular curved surface, the protruding portion can abut against either of the inner surfaces of the fixing portion and the insertion portion by line contact. Therefore, compared to the case where the protruding portion surface contacts either of the inner surfaces of the fixing portion and the insertion portion, the frictional force when the fixing portion is inserted can be reduced. Further, since the protruding portion having the semicircular surface shape abuts against the inner surfaces of the fixing portion and the insertion portion, respectively, the fixing portion can be easily elastically deformed along the semicircular surface in the case where the protruding portion abuts against either of the inner surfaces of the fixing portion and the insertion portion. As a result, by providing the protruding portion with the semicircular surface shape, the force required when the fixing portion is inserted can be made smaller, and thus the assembly work for fixing the cover member by inserting the fixing portion into the insertion portion can be performed more easily.

[0011] In the power conversion device of the above one aspect, it is preferable that, for the protruding portion provided on either of the inner surfaces of the fixing portion and the insertion portion, a width in a direction orthogonal to a direction in which the protruding portion abuts against the other in a plane orthogonal to the direction in which the fixing portion is inserted be smaller than a corresponding width of the fixing portion. Here, in the case where the width of the protruding portion in the direction orthogonal to the direction in which the protruding portion abuts against the other in the plane orthogonal to the direction in which the fixing portion is inserted is larger than the corresponding width of the fixing portion, in order to provide the protruding portion with the larger width, the size of the opening of the insertion portion needs to be increased to a necessary degree or more. In contrast, in the present application, the protruding portion is configured such that the width in the direction orthogonal to the direction in which the protruding portion abuts against the other in the plane orthogonal to the direction in which the fixing portion is inserted is smaller than the corresponding width of the fixing portion. If so configured, unlike the case where the protruding portion with the larger width is provided, the size of the opening of the insertion portion does not need to be increased to the necessary degree or more in order to provide the protruding portion, and thus the device structure can be prevented from being large in order to fix the cover member.

[0012] In the power conversion device of the above one aspect, it is preferable that the protruding portion be provided on the inner surface of the insertion portion, the fixing portion include a first engaging portion that is inserted into the insertion portion and engages with the outer surface portion, and the inner surface of the insertion portion have a second engaging portion that engages with the first engaging portion. If so configured, the fixing portion and the protruding portion provided on the inner surface of the insertion portion can abut against each other in a state where the first engaging portion of the fixing portion and the second engaging portion of the inner surface of the insertion portion engage with each other. Therefore, by pressing the protruding portion 32 provided on the inner surface of the insertion portion against the fixing portion, the engagement of the first engaging portion and the second engaging portion can be prevented from being released. As a result, the fixing portion can be prevented from being separated from the insertion portion by the protruding portion.

[0013] In this case, it is preferable that the insertion portion be provided in a manner that penetrates the outer surface portion, and the protrusion portion be provided on the inner surface of the insertion portion in a manner that abuts against the fixing portion in a state in which the first engagement portion of the insertion portion that penetrates the outer surface portion is engaged with the second engagement portion. If so configured, by providing the insertion portion as a through hole, it is possible to insert the fixing portion from one end portion to the other end portion of the through hole and engage the first engagement portion with the other end portion. Therefore, unlike the case in which the insertion portion is a recess that does not penetrate, by providing the insertion portion as a through hole, it is possible to easily configure the inner surface of the end portion of the through hole as the second engagement portion. As a result, it is possible to engage the fixing portion with the insertion portion and easily perform the fixing.

[0014] In the power conversion device in which the protrusion portion is provided on the inner surface of the insertion portion, it is preferable that the protrusion portion be provided on the inner surface of the insertion portion on one side in a direction that intersects the direction in which the fixing portion is inserted, and the first engagement portion be engaged with a second engagement portion provided on the other side in the direction that intersects the direction in which the fixing portion is inserted on the inner surface of the insertion portion. If so configured, since the protrusion portion is provided on the inner surface of the insertion portion on the side opposite the inner surface on which the second engagement portion with which the first engagement portion is engaged is provided, by abutting the fixing portion and the protrusion portion, it is possible to press and fix the fixing portion from the opposite side of the first engagement portion. Therefore, the fixing portion is pressed from the opposite side by the protrusion portion, and thus it is possible to more reliably prevent the engagement of the first engagement portion and the second engagement portion from being released. As a result, it is possible to more reliably prevent the fixing portion from coming off the insertion portion using the protrusion portion.

[0015] In the power conversion device in which the protrusion portion is provided on the inner surface of the insertion portion, it is preferable that the protrusion portion be provided on the inner surface of the insertion portion in a manner that the distance between the protrusion portion and the second engagement portion in the direction in which the protrusion portion and the fixing portion abut against each other is smaller than the thickness of the portion of the fixing portion that abuts against the protrusion portion. If so configured, since the distance between the protrusion portion and the second engagement portion is smaller than the thickness of the fixing portion, for the fixing portion that is inserted into the insertion portion in a state in which it abuts against the protrusion portion, it is possible to fix the fixing portion in an elastically deformed state using the protrusion portion. Therefore, it is possible to more effectively prevent the engagement of the first engagement portion and the second engagement portion from being released using the restoring force of the fixing portion that is fixed in an elastically deformed state.

[0016] In the power conversion device in which the protrusion portion is provided to the inner surface of the insertion portion, it is preferable that, when viewed from the direction in which the insertion fixing portion is inserted, the insertion portion has a rectangular shape, and the protrusion portion is provided to one side of the long side of the rectangular shape on the inner surface of the insertion portion. If so configured, the protrusion portion of the long side, the portion other than the protrusion portion of the long side, and the gap between the fixing portion become larger than in the case where the protrusion portion is provided to the short side of the rectangular shape, and thus the fixing portion can be elastically deformed more greatly. Therefore, the fixing portion that has been elastically deformed can be fixed to the insertion portion in a state in which a greater restoring force is applied, and thus the engagement of the first engagement portion and the second engagement portion can be further suppressed from being released with a greater force.

[0017] Further, in the present specification, the "rectangular shape" is described as a broad concept that includes not only a rectangular shape in which all four corners are right angles but also a shape in which the four corners have rounded corners or are chamfered. In addition, the "rectangular shape" is described as a broad concept that includes not only a rectangular shape in which all four corners are right angles but also a quadrilateral in which the four corners are angles deviated from right angles.

[0018] In the power conversion device in which the protrusion portion is provided to the inner surface of the insertion portion, it is preferable that the protrusion portion is provided on the inner surface of the insertion portion so as to extend from one end portion side of the inner surface to the other end portion side of the inner surface in the direction in which the insertion fixing portion is inserted. If so configured, the fixing portion can be elastically deformed more greatly than in the case where the protrusion portion is provided to only a part in the direction in which the insertion fixing portion is inserted. Therefore, a greater restoring force can be applied using the fixing portion that has been elastically deformed more greatly, and thus the engagement of the first engagement portion and the second engagement portion can be more effectively suppressed from being released.

[0019] In the power conversion device of the one technical solution, it is preferable that the power conversion housing includes an operation panel that operates a power conversion operation performed by the power conversion portion, and the protrusion portion is provided to the inner surface of the insertion portion provided to the outer surface portion of the operation surface of the operation panel. If so configured, even in the case where a connection portion for connecting a device outside the device is provided on the operation surface of the operation panel that operates the power conversion operation, the cover member can be easily fixed without providing a new structure (member). Therefore, the number of components of the operation panel does not increase, and the assembly work of the operation panel can be easily performed.

[0020] In the power conversion device of one of the above-described aspects, preferably, the cover member includes a fixing portion formed of an elastically deformable rubber, the cover member is attached to the outer surface portion by inserting and fitting the fixing portion in an elastically deformed state into the insertion portion, and the protruding portion is provided on an inner surface of the insertion portion and is configured to abut against the fixing portion inserted in an elastically deformed state. With this configuration, since the fixing portion is formed of rubber, the fixing portion can be easily elastically deformed. Therefore, the fixing portion can be easily elastically deformed and pressed against the protruding portion in the state of abutting against the protruding portion, and thus the cover member can be easily fixed and attached to the housing for power conversion.

[0021] In this case, preferably, the cover member is configured such that the cover portion is openable and closable in the state of being attached to the outer surface portion by inserting the elastically deformable fixing portion into the insertion portion in the state of abutting against the protruding portion. With this configuration, since the fixing portion is fixed by abutting against the protruding portion in an elastically deformed state, the cover portion of the cover member can be opened and closed in the state of pressing the fixing portion with the protruding portion. Therefore, by pressing the fixing portion with the protruding portion, the fixing portion can be easily fixed without providing a new structure even when the cover portion is opened and closed in the state of the cover member being attached to the outer surface portion.

[0022] In the power conversion device of one of the above-described aspects, preferably, the cover portion covers a connection portion including a USB terminal or an SD card slot, the area of the fixing portion is smaller than the area of the cover portion when viewed from the direction in which the fixing portion is inserted, and the area of the protruding portion is further smaller than the area of the fixing portion when viewed from the direction in which the fixing portion is inserted. With this configuration, in the case where the fixing portion smaller than the cover portion is inserted and fixed into the insertion portion, the fixing portion can be fixed by providing the protruding portion further smaller than the fixing portion. Therefore, in the case where the fixing portion is inserted and fixed into the insertion portion, the device structure can be prevented from being large due to the provision of the protruding portion. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic view of a power conversion device according to an embodiment.

[0024] Figure 2 is a block diagram showing the structure of a power conversion device according to an embodiment.

[0025] Figure 3A is a perspective view of a cover member and an outer surface portion according to an embodiment, and is a view before the cover member is attached to the outer surface portion.

[0026] Figure 3B is a perspective view of a cover member and an outer surface portion according to an embodiment, and is a view after the cover member is attached to the outer surface portion.

[0027] Figure 4Ais a plan view of the cover member and the outer surface portion of one embodiment viewed from the Zl direction side, and is a view before the cover member is attached to the outer surface portion.

[0028] Figure 4B is a plan view of the cover member and the outer surface portion of one embodiment viewed from the Zl direction side, and is a view after the cover member is attached to the outer surface portion.

[0029] Figure 5A is a sectional view along the line 200-200 of Figure 4A , and is a view before the cover member is attached to the outer surface portion.

[0030] Figure 5B is a sectional view along the line 200-200 of Figure 4B , and is a view after the cover member is attached to the outer surface portion.

[0031] Figure 6A is a view for explaining the thickness of the portion of the fixing portion that abuts against the protruding portion, and the distance between the protruding portion and the second engaging portion, and is a sectional view along the line 200-200 of Figure 4A , Figure 4B .

[0032] Figure 6B is a view for explaining the thickness of the portion of the fixing portion that abuts against the protruding portion, and the distance between the protruding portion and the second engaging portion, and is a perspective view of the cover member and the outer surface portion.

[0033] Figure 7A is a view for explaining the opening and closing of the cover portion in the state of being attached to the outer surface portion, and is a view of the state in which the cover portion is closed.

[0034] Figure 7B is a view for explaining the opening and closing of the cover portion in the state of being attached to the outer surface portion, and is a view of the state in which the cover portion is opened. DETAILED DESCRIPTION

[0035] Hereinafter, an embodiment embodying the present application will be described based on the drawings.

[0036] The structure of the power conversion device 100 of the present embodiment will be described with reference to Figures 1-7A , Figure 7B .

[0037] (Overall structure of the power conversion device)

[0038] As shown in Figure 1 and Figure 2As shown in FIG. 1, the power conversion device 100 includes a power conversion section 1, a control section 2, a housing 3, a communication terminal 4, and a cover member 5. The power conversion device 100 is, for example, a converter device that converts alternating-current power input from a commercial power source 101 and outputs the power to a load 102. In addition, as shown in FIG. 1, the power conversion device 100 is configured to be able to communicate with a PC 103 (personal computer). Further, the housing 3 is an example of the "power conversion housing" in the claims. In addition, the communication terminal 4 is an example of the "connection portion" in the claims. In addition, the PC 103 is an example of the "device external apparatus" in the claims. Figure 1 As shown in FIG. 1, the power conversion device 100 is configured to be able to communicate with the PC 103 (personal computer). Further, the housing 3 is an example of the "power conversion housing" in the claims. In addition, the communication terminal 4 is an example of the "connection portion" in the claims. In addition, the PC 103 is an example of the "device external apparatus" in the claims.

[0039] As shown in FIG. 1, the power conversion device 100 includes a power conversion section 1, a control section 2, a housing 3, a communication terminal 4, and a cover member 5. The power conversion device 100 is, for example, a converter device that converts alternating-current power input from a commercial power source 101 and outputs the power to a load 102. In addition, as shown in FIG. 1, the power conversion device 100 is configured to be able to communicate with a PC 103 (personal computer). Further, the housing 3 is an example of the "power conversion housing" in the claims. In addition, the communication terminal 4 is an example of the "connection portion" in the claims. In addition, the PC 103 is an example of the "device external apparatus" in the claims. Figure 2 As shown in FIG. 1, the power conversion device 100 includes a power conversion section 1, a control section 2, a housing 3, a communication terminal 4, and a cover member 5. The power conversion device 100 is, for example, a converter device that converts alternating-current power input from a commercial power source 101 and outputs the power to a load 102. In addition, as shown in FIG. 1, the power conversion device 100 is configured to be able to communicate with a PC 103 (personal computer). Further, the housing 3 is an example of the "power conversion housing" in the claims. In addition, the communication terminal 4 is an example of the "connection portion" in the claims. In addition, the PC 103 is an example of the "device external apparatus" in the claims.

[0040] The control section 2 controls the power conversion operation of the power conversion section 1. The control section 2 includes a microcomputer (microcontroller) having a CPU (Central Processing Unit) and a flash memory. The control section 2 outputs a gate signal (PWM signal: Pulse Width Modulation signal) for controlling the switching operation of the switching element of the inverter circuit 13 of the power conversion section 1. In addition, the control section 2 is configured to cause each part of the power conversion device 100 to operate in accordance with a set value (set information) stored in advance in the flash memory. In addition, the control section 2 is configured to store an operation log (log information) of the operation of each part of the power conversion device 100 in the flash memory.

[0041] As shown in FIG. 1, the power conversion device 100 includes a power conversion section 1, a control section 2, a housing 3, a communication terminal 4, and a cover member 5. The power conversion device 100 is, for example, a converter device that converts alternating-current power input from a commercial power source 101 and outputs the power to a load 102. In addition, as shown in FIG. 1, the power conversion device 100 is configured to be able to communicate with a PC 103 (personal computer). Further, the housing 3 is an example of the "power conversion housing" in the claims. In addition, the communication terminal 4 is an example of the "connection portion" in the claims. In addition, the PC 103 is an example of the "device external apparatus" in the claims. Figure 1As shown, in this embodiment, the housing 3 includes an operation panel 3a for operating the power conversion operation performed by the power conversion unit 1. The operation panel 3a includes multiple operation buttons. Furthermore, the operation panel 3a is configured to accept input operations based on input operations to the multiple operation buttons. Additionally, the housing 3 includes an outer surface 30. Specifically, the outer surface 30 is the operation surface of the operation panel 3a of the housing 3. Furthermore, the power conversion unit 1, which performs the power conversion operation, is disposed internally within the housing 3. Additionally, the housing 3 is formed, for example, from ABS resin.

[0042] In this embodiment, the communication terminal 4 is provided on the outer surface 30 of the housing 3. Furthermore, the communication terminal 4 includes a USB port for connecting to the PC 103, which is an external device. The control unit 2 and the PC 103, as an external device, send and receive information to each other via the communication terminal 4. For example, by connecting the USB cable to the communication terminal 4, the PC 103 stores setting information in the flash memory of the control unit 2 via the communication terminal 4. Additionally, the PC 103 obtains (receives) log information stored in the flash memory of the control unit 2 via the communication terminal 4.

[0043] (Structure of the cover component and the insert)

[0044] like Figure 3A and Figure 3B As shown, in this embodiment, the cover member 5 includes a cover portion 51 and a fixing portion 52. The cover portion 51 covers the communication terminal 4. Specifically, the cover portion 51 is provided to cover the communication terminal 4 in order to prevent foreign matter such as dust and dirt from adhering to (mixing into) the communication terminal 4. The fixing portion 52 fixes the cover member 5 to the housing 3. In addition, the fixing portion 52 is elastically deformable. For example, the fixing portion 52 is formed of elastically deformable rubber. Specifically, the cover portion 51 and the fixing portion 52 are integrally formed by elastically deformable rubber.

[0045] like Figure 3A , Figures 3B-5A , Figure 5B As shown, the cover member 5 is mounted on the outer surface surface 30 by pressing the fixing part 52 into the insertion part 31 provided on the outer surface surface 30 in an elastically deformable state. The insertion part 31 is provided independently on the outer surface surface 30 relative to the communication terminal 4. Figure 4A As shown, when viewed from the direction of the insertion fixing part 52 (Z direction), the insertion part 31 has a generally rectangular shape. Specifically, the insertion part 31 is formed with rounded corners at the corners of the rectangular shape.

[0046] Further, the fixed portion 52 has a flat shape (a flat shape) of a cross section corresponding to the substantially rectangular insertion portion 31. Also, the fixed portion 52 is bent toward the long side (X2 direction side) of the insertion portion 31 in a state of being inserted into the insertion portion 31, thereby covering the cover portion 51 over the communication terminal 4. That is, the fixed portion 52 has a flat shape having a direction (Z direction) in which the fixed portion 52 is inserted as a long side direction and a direction (Y direction) orthogonal to the direction (Z direction) in which the fixed portion 52 is inserted and the direction (X2 direction) in which the fixed portion 52 is bent, in a state of extending in the Z direction.

[0047] Further, as shown in Figure 4B , in the present embodiment, the area of the fixed portion 52 is smaller than the area of the cover portion 51 when viewed from the direction (Z direction) in which the fixed portion 52 is inserted. That is, the opening area (area when viewed from the Z direction) of the insertion portion 31 is smaller than the area of the communication terminal 4 when viewed from the Z direction.

[0048] Further, as shown in Figure 5A , in the present embodiment, the insertion portion 31 provided to the outer surface portion 30 is provided in a manner of penetrating the outer surface portion 30 in the Z direction. That is, the insertion portion 31 is a through hole provided to the outer surface portion 30. The fixed portion 52 is inserted and fixed in a manner of penetrating the insertion portion 31. Specifically, as shown in Figure 5B , the fixed portion 52 includes a wedge-shaped engagement portion 52a. Also, the engagement portion 52a is engaged with the outer surface portion 30. Further, the inner surface 31a (see Figure 5A ) of the X2 direction side of the insertion portion 31 has an engagement portion 31b on the Z2 direction side. That is, the fixed portion 52 is inserted into the insertion portion 31, and the fixed portion 52 is fixed by the engagement portion 52a being engaged with the engagement portion 31b of the insertion portion 31. In addition, the engagement portion 52a is an example of the "first engagement portion" in the claims. Further, the engagement portion 31b is an example of the "second engagement portion" in the claims.

[0049] Here, the inner surface 31a of the insertion portion 31 refers to an inner peripheral wall portion (inner side surface portion) of the opening of the insertion portion 31 as a through hole. That is, the inner surface 31a of the insertion portion 31 refers to a wall surface portion on the inner side in the X direction and the Y direction of the insertion portion 31.

[0050] 〈Structure of the protrusion portion〉

[0051] In the present embodiment, as shown in Figure 3A , Figures 3B-6A , Figure 6BAs shown, the inner surface 31a on the X1 direction side of the insertion portion 31 is provided with the protrusion portion 32. That is, the protrusion portion 32 is provided on the inner surface 31a of the substantially rectangular insertion portion 31 on one side of the long side of the substantially rectangular insertion portion 31. In this embodiment, the protrusion portion 32 is in abutment with the fixing portion 52 inserted into the insertion portion 31. That is, the protrusion portion 32 is provided on the inner surface 31a on the X1 direction side in abutment with the fixing portion 52 in a state in which the engagement portion 52a is engaged with the engagement portion 31b on the X2 direction side of the inner surface 31a.

[0052] As shown in detail, Figure 5B In this embodiment, the protrusion portion 32 is provided on the inner surface 31a on the side opposite to the inner surface 31a provided with the engagement portion 31b in the X direction. That is, the protrusion portion 32 is provided to abut with the fixing portion 52 on the side (X1 direction side) of the direction (X direction) orthogonal to the direction (Z direction) in which the fixing portion 52 is inserted. On the other hand, the engagement portion 52a of the fixing portion 52 is engaged with the engagement portion 31b provided on the other side (X2 direction side) of the direction (X direction) orthogonal to the direction (Z direction) in which the fixing portion 52 is inserted. In other words, the fixing portion 52 is in abutment with the protrusion portion 32 on one side (X1 direction) in the X direction and is engaged with the engagement portion 31b on the other side (X2 direction) in the X direction.

[0053] As shown in detail, Figure 4A , Figure 4B In this embodiment, the protrusion portion 32 has a surface shape having a rounded corner. Specifically, the protrusion portion 32 has a semicircular surface shape. That is, the cross section of the protrusion portion 32 when viewed in the Z direction is semicircular with a circumferential portion on the X2 direction side. Thus, the curved surface of the protrusion portion 32 is disposed on the X2 direction side. As a result, the protrusion portion 32 is in abutment with the fixing portion 52 by the semicircular curved surface.

[0054] As shown in detail, Figure 4B In this embodiment, the protrusion portion 32 has a width w2 smaller than the width w1 of the fixing portion 52 in the direction (Y direction) orthogonal to the direction (X direction) in which the protrusion portion 32 is in abutment with the fixing portion 52. Specifically, the width w2 of the protrusion portion 32 in the direction (Y direction) orthogonal to the direction (X direction) in which the protrusion portion 32 is in abutment with the fixing portion 52 is shorter than the corresponding width w1 (width in the Y direction) of the fixing portion 52 in the XY plane orthogonal to the direction (Z direction) in which the fixing portion 52 is inserted. For example, the width w1 of the fixing portion 52 in the Y direction is about 7 mm. Also, the width w2 of the protrusion portion 32 in the Y direction is about 1 mm. In addition, the area of the protrusion portion 32 is smaller than the area of the fixing portion 52 when viewed in the direction (Z direction) in which the fixing portion 52 is inserted.

[0055] As shown in detail, Figure 5A, Figure 5B As shown, in this embodiment, the protrusion 32 is configured to extend from one end side (Z1 direction side) of the inner surface 31a to the other end side (Z2 direction side) along the direction (Z direction) of the insertion fixing part 52. That is, the protrusion 32 has an elongated semi-cylindrical shape extending along the Z direction.

[0056] In addition, such as Figure 6A , Figure 6B As shown, in this embodiment, the protrusion 32 is provided on the inner surface 31a of the insertion portion 31 in such a way that the distance d2 between the protrusion 32 and the engaging portion 31b in the direction (X direction) in which the protrusion 32 and the fixing portion 52 abut against each other is less than the thickness d1 of the portion of the fixing portion 52 that abuts against the protrusion 32.

[0057] That is, when the fixing part 52 is inserted into the insertion part 31, it is in a state where the protrusion 32 applies force (presses) in the X direction. In other words, the fixing part 52 is inserted into the insertion part 31 and fixed in a state where it is elastically deformed by the force applied in the X direction. Specifically, as Figure 3B and Figure 4B As shown, when the fixing part 52 is inserted into the insertion part 31, it elastically deforms by flexing the portion that abuts against the protrusion 32. Therefore, the fixing part 52 is elastically deformed by being pressed by the protrusion 32 in the X2 direction, and thus fixed in a state where a restoring force acts in the X direction. Consequently, the fixing part 52 is inserted into the insertion part 31 and fixed in a state where it acts forcefully in the direction that suppresses the release of the engagement between the engaging part 52a and the engaging part 31b.

[0058] As described above, in this embodiment, the protrusion 32 is designed to abut against the fixing portion 52, which is inserted in an elastically deformable state. Furthermore, as... Figure 7A , Figure 7B As shown, by inserting the elastically deformable fixing part 52 into the insertion part 31 in a state of abutting against the protrusion 32, the cover member 5 is configured such that the cover part 51 can be opened and closed when mounted on the outer surface part 30. Specifically, by elastically deforming the fixing part 52 in a state of being fixed by being inserted into the insertion part 31, the cover part 51 is closed. Figure 7A The cover 51 is open. Figure 7B ( ) Movement. That is, configured such that, with the cover member 5 installed on the outer surface 30, a connecting cable (communication cable) or the like can be connected to the communication terminal 4.

[0059] (Effects of this implementation method)

[0060] In this embodiment, the following effects can be achieved.

[0061] In the present embodiment, as described above, the fixing portion 52 of the cover member 5 is inserted into the insertion portion 31 provided on the outer surface portion 30 independently of the communication terminal 4 (connection portion) in an elastically deformed state, whereby the cover member 5 is attached to the outer surface portion 30. Also, either one of the fixing portion 52 of the cover member 5 and the inner surface 31a of the insertion portion 31 provided on the outer surface portion 30 is provided with a protrusion portion 32 that abuts against the other one of the fixing portion 52 of the cover member 5 and the inner surface 31a of the insertion portion 31 provided on the outer surface portion 30, and the protrusion portion 32 has a width w2 smaller than the width wl of the fixing portion 52 in a direction (Y direction) orthogonal to the direction (X direction) in which the other one is abutted. Thus, by abutting the protrusion portion 32 provided on either one of the fixing portion 52 and the inner surface 31a of the insertion portion 31 against the other one of the fixing portion 52 and the inner surface 31a of the insertion portion 31, the fixing portion 52 can be pressed. That is, the fixing portion 52 is pressed into the insertion portion 31. Therefore, unlike the case where a fastening member (screw) or the like is provided independently in order to fix the fixing portion 52 inserted into the insertion portion 31, the cover member 5 can be fixedly attached to the housing 3 using the inner surface 31a of the insertion portion 31 provided on the outer surface portion 30 of the housing 3 (power conversion housing) and the fixing portion 52 of the cover member 5 without providing a new member such as a screw. Also, in the case of inserting and fixing the fixing portion 52 into the insertion portion 31, the fixing portion 52 is inserted into the insertion portion 31 in a state of being pressed by the protrusion portion 32 having a width w2 smaller than the width wl of the fixing portion 52. Therefore, the area of the contact surface between the fixing portion 52 and the inner surface 31a of the insertion portion 31 can be reduced using the protrusion portion 32. Also, since the width w2 of the protrusion portion 32 is smaller than the width wl of the fixing portion 52, the fixing portion 52 can be easily elastically deformed when the fixing portion 52 is inserted into the insertion portion 31. Thus, the force required for pressing the fixing portion 52 into the insertion portion 31 can be reduced, and thus the assembly work of inserting and fixing the fixing portion 52 can be easily performed. As a result, even in the case where the cover member 5 that covers the communication terminal 4 (connection portion) for connecting the PC 103 (device outside the apparatus) is provided, the number of components can not be increased in order to fix the cover member 5, and the assembly work can be easily performed.

[0062] Also, in the present embodiment, the protrusion portion 32 provided on the inner surface 31a of the insertion portion 31 has a surface shape with a rounded corner. If so configured, unlike the case where the surface shape of the protrusion portion 32 includes a corner portion, the surface of the fixing portion 52 abutting against the protrusion portion 32 can be prevented from being damaged. Therefore, the surface portion of the fixing portion 52 can be prevented from being deteriorated by being damaged by the corner portion of the protrusion portion 32.

[0063] Further, in the present embodiment, the protruding portion 32 is provided so as to have a semicircular surface shape, and the semicircular curved surface of the protruding portion 32 abuts against the other. If so configured, since the protruding portion 32 abuts against the other using the semicircular curved surface, the protruding portion 32 can abut against either one of the fixing portion 52 and the inner surface 31a of the insertion portion 31 by line contact. Therefore, compared to the case where the protruding portion 32 is in surface contact with either one of the fixing portion 52 and the inner surface 31a of the insertion portion 31, it is possible to reduce the frictional force when the fixing portion 52 is inserted. Further, since the protruding portion 32 having the semicircular surface shape abuts against the fixing portion 52, it is easy to elastically deform the fixing portion 52 along the semicircular surface. As a result, by providing the protruding portion 32 with the semicircular surface shape, it is possible to make the force required when the fixing portion 52 is inserted smaller, and thus it is possible to more easily perform the assembly work for fixing the cover member 5 by inserting the fixing portion 52 into the insertion portion 31.

[0064] Further, in the present embodiment, for the protruding portion 32 provided on the inner surface 31a of the insertion portion 31, the width w2 in the direction orthogonal to the direction in which the protruding portion 32 abuts against the other (Y direction) in the plane orthogonal to the direction in which the fixing portion 52 is inserted (Z direction) (XY plane) is smaller than the corresponding width wl of the fixing portion 52. Here, in the plane orthogonal to the direction in which the fixing portion 52 is inserted, in the case where the width w2 of the protruding portion 32 in the direction orthogonal to the direction in which the protruding portion 32 abuts against the other is larger than the corresponding width wl of the fixing portion 52, in order to provide the protruding portion 32 with the larger width w2, it is necessary to increase the size of the opening of the insertion portion 31 to the required degree or more. In contrast, in the present embodiment, the protruding portion 32 is configured so that the width w2 in the direction orthogonal to the direction in which the protruding portion 32 abuts against the other is smaller than the corresponding width wl of the fixing portion 52 in the plane orthogonal to the direction in which the fixing portion 52 is inserted. If so configured, unlike the case where the protruding portion 32 with the larger width w2 is provided, it is not necessary to increase the size of the opening of the insertion portion 31 to the required degree or more in order to provide the protruding portion 32, and thus it is possible to suppress the increase in the size of the device structure for fixing the cover member 5.

[0065] Further, in the present embodiment, the protruding portion 32 is provided to the inner surface 31a of the insertion portion 31, the fixing portion 52 includes an engaging portion 52a (first engaging portion) which is inserted into the insertion portion 31 and engages with the outer surface portion 30, and the inner surface 31a of the insertion portion 31 has an engaging portion 31b (second engaging portion) which engages with the engaging portion 52a. If so configured, the fixing portion 52 and the protruding portion 32 provided to the inner surface 31a of the insertion portion 31 can be brought into abutment in a state where the engaging portion 52a of the fixing portion 52 and the engaging portion 31b of the inner surface 31a of the insertion portion 31 are engaged. Therefore, by pressing the protruding portion 32 provided to the inner surface 31a of the insertion portion 31 against the fixing portion 52, it is possible to prevent the engagement of the engaging portion 52a and the engaging portion 31b from being released. As a result, it is possible to prevent the fixing portion 52 from coming off the insertion portion 31 by the protruding portion 32.

[0066] Further, in the present embodiment, the insertion portion 31 is provided as a through-hole of the outer surface portion 30, and the protruding portion 32 is provided to the inner surface 31a of the insertion portion 31 so as to abut against the fixing portion 52 in a state where the engaging portion 52a (first engaging portion) of the insertion portion 31 which is inserted through the outer surface portion 30 is engaged with the engaging portion 31b (second engaging portion). If so configured, by providing the insertion portion 31 as a through-hole, it is possible to insert the fixing portion 52 from one end portion to the other end portion of the through-hole and engage the engaging portion 52a with the other end portion. Therefore, unlike the case where the insertion portion 31 is a recess which is not through, by providing the insertion portion 31 as a through-hole, it is possible to easily configure the inner surface 31a of the end portion of the through-hole as the engaging portion 31b. As a result, it is possible to engage the fixing portion 52 with the insertion portion 31 and easily fix it.

[0067] Further, in the present embodiment, the protruding portion 32 is provided to the inner surface 31a of the insertion portion 31 on one side (X1 direction side) in a direction intersecting the direction in which the fixing portion 52 is inserted, and the engaging portion 52a (first engaging portion) engages with the engaging portion 31b (second engaging portion) provided on the other side (X2 direction side) in the direction intersecting the direction in which the fixing portion 52 is inserted on the inner surface 31a of the insertion portion 31. If so configured, since the protruding portion 32 is provided to the inner surface 31a of the insertion portion 31 on the side opposite to the inner surface 31a on which the engaging portion 31b with which the engaging portion 52a engages is provided, by bringing the fixing portion 52 and the protruding portion 32 into abutment, it is possible to press and fix the fixing portion 52 from the side opposite to the engaging portion 52a. Therefore, since the fixing portion 52 is pressed from the side opposite to the protruding portion 32, it is possible to more reliably prevent the engagement of the engaging portion 52a and the engaging portion 31b from being released. As a result, it is possible to more reliably prevent the fixing portion 52 from coming off the insertion portion 31 by the protruding portion 32.

[0068] Further, in the present embodiment, the protruding portion 32 is provided on the inner surface 31a of the insertion portion 31 in such a manner that the distance d2 between the protruding portion 32 and the engaging portion 31b (second engaging portion) in the direction (X direction) in which the protruding portion 32 and the fixing portion 52 abut against each other is smaller than the thickness dl of the portion of the fixing portion 52 that abuts against the protruding portion 32. If so configured, since the distance d2 between the protruding portion 32 and the engaging portion 31b is smaller than the thickness dl of the fixing portion 52, the fixing portion 52 that is inserted into the insertion portion 31 in the state of abutting against the protruding portion 32 can be fixed in the elastically deformed state by the protruding portion 32. Therefore, the engagement of the engaging portion 52a (first engaging portion) and the engaging portion 31b (second engaging portion) can be more effectively prevented from being released by the restoring force of the fixing portion 52 that is fixed in the elastically deformed state.

[0069] Further, in the present embodiment, the insertion portion 31 has a substantially rectangular shape when viewed from the direction (Z direction) in which the fixing portion 52 is inserted, and the protruding portion 32 is provided on the inner surface 31a of the insertion portion 31 on one side of the long side of the substantially rectangular shape. If so configured, the gap between the protruding portion 32 of the long side, the portion other than the protruding portion 32 of the long side, and the fixing portion 52 becomes larger than in the case where the protruding portion 32 is provided on the short side of the substantially rectangular shape, and thus the fixing portion 52 can be more elastically deformed. Therefore, the fixing portion 52 that is elastically deformed can be fixed to the insertion portion 31 in the state of being applied with a larger restoring force, and thus the engagement of the engaging portion 52a (first engaging portion) and the engaging portion 31b (second engaging portion) can be further prevented from being released by a larger force.

[0070] Further, in the present embodiment, the protruding portion 32 is provided on the inner surface 31a of the insertion portion 31 so as to extend from one end portion side (Zl direction side) to the other end portion side (Z2 direction side) of the inner surface 31a in the direction (Z direction) in which the fixing portion 52 is inserted. If so configured, the fixing portion 52 can be more elastically deformed than in the case where the protruding portion 32 is provided on only a portion in the direction in which the fixing portion 52 is inserted. Therefore, the fixing portion 52 that is more elastically deformed can be used to apply a larger restoring force, and thus the engagement of the engaging portion 52a (first engaging portion) and the engaging portion 31b (second engaging portion) can be more effectively prevented from being released.

[0071] Further, in the present embodiment, the housing 3 (power conversion housing) includes an operation panel 3a that operates the power conversion operation by the power conversion section 1, and the protruding section 32 is provided to an inner surface 31a of an insertion section 31 provided to the outer surface section 30 as an operation surface of the operation panel 3a. If so configured, even in the case where the communication terminal 4 (connection section) for connecting an external device is provided to the operation surface of the operation panel 3a that operates the power conversion operation, the cover member 5 can be easily fixed without providing a new structure (member). Therefore, the number of components of the operation panel 3a is not increased, and the assembly work of the operation panel 3a can be easily performed.

[0072] Further, in the present embodiment, the cover member 5 includes a fixing section 52 formed of rubber that is elastically deformed, and the cover member 5 is mounted to the outer surface section 30 by pressing and inserting the fixing section 52 in the insertion section 31 in an elastically deformed state, and the protruding section 32 is provided to the inner surface 31a of the insertion section 31 and is configured to abut against the fixing section 52 that is inserted in the elastically deformed state. If so configured, since the fixing section 52 is formed of rubber, the fixing section 52 can be easily elastically deformed. Therefore, the fixing section 52 can be easily elastically deformed and pressed against the protruding section 32 in the abutting state, and thus the cover member 5 can be easily fixed and mounted to the housing 3 (power conversion housing).

[0073] Further, in the present embodiment, the cover member 5 is configured such that the cover section 51 can be opened and closed in the state of being mounted to the outer surface section 30 by inserting the fixing section 52 that is elastically deformed in the abutting state against the protruding section 32 into the insertion section 31. If so configured, since the fixing section 52 is fixed by abutting against the protruding section 32 in the elastically deformed state, the cover section 51 of the cover member 5 can be opened and closed in the state of being pressed against the fixing section 52 by the protruding section 32. Therefore, by pressing the fixing section 52 by the protruding section 32, even when the cover section 51 is opened and closed in the state of the cover member 5 being mounted to the outer surface section 30, the fixing section 52 can be easily fixed without providing a new structure.

[0074] Further, in the present embodiment, the cover section 51 covers the communication terminal 4 (connection section) including a USB terminal or an SD card slot, the area of the fixing section 52 is smaller than the area of the cover section 51 when viewed from the direction of inserting the fixing section 52, and the area of the protruding section 32 is further smaller than the area of the fixing section 52 when viewed from the direction of inserting the fixing section 52. If so configured, in the case where the fixing section 52 that is smaller than the cover section 51 is inserted and fixed to the insertion section 31, the fixing section 52 can be fixed by providing the protruding section 32 that is further smaller than the fixing section 52. Therefore, in the case where the fixing section 52 is inserted and fixed to the insertion section 31, the device structure can be prevented from being large-sized due to the provision of the protruding section 32.

[0075] [Modified example]

[0076] Further, it should be understood that the embodiments disclosed herein are illustrative of the application and not restrictive of the application. The scope of the application is not shown by the above-described embodiments, but is shown by the claims, and the scope of the application includes all modifications (modified examples) within the meaning and scope of the claims.

[0077] For example, in the above-described embodiments, an example in which the protrusion portion 32 is provided to the inner surface 31a of the insertion portion 31 is shown, but the present application is not limited to this. For example, the protrusion portion 32 can also be provided to the fixing portion 52 of the cover member 5. That is, the protrusion portion 32 can also be provided to a side surface portion of the fixing portion 52 in a direction in which the fixing portion 52 is inserted.

[0078] Further, in the above-described embodiments, an example in which the protrusion portion 32 has a surface shape with rounded corners is shown, but the present application is not limited to this. For example, a surface shape in which the corners are chamfered can also be included. That is, the protrusion portion 32 can also be a triangular prism shape or a quadrangular prism shape in which the corners are chamfered. Further, the protrusion portion 32 can also be a surface shape with corners.

[0079] Further, in the above-described embodiments, an example in which the protrusion portion 32 is provided to have a semicircular surface shape and the curved surface of the semicircular protrusion portion 32 abuts against the other is shown, but the present application is not limited to this. For example, the protrusion portion 32 can also be an elliptical surface shape.

[0080] Further, in the above-described embodiments, an example in which, for the protrusion portion 32, the width w2 in a direction (Y direction) orthogonal to the direction in which the protrusion portion 32 abuts against the fixing portion 52 is smaller than the corresponding width w1 of the fixing portion 52 in a plane (XY plane) orthogonal to the direction in which the protrusion portion 32 is inserted into the fixing portion 52 is shown, but the present application is not limited to this. For example, the width of the protrusion portion 32 in the Z direction can also be smaller than the width of the fixing portion 52 in the Z direction. That is, the protrusion portion 32 can also be provided to have a width in the direction in which the protrusion portion 32 is inserted into the fixing portion 52 (Z direction) that is smaller than the corresponding width of the fixing portion 52 in a plane (YZ plane) orthogonal to the direction in which the protrusion portion 32 abuts against the fixing portion 52. In other words, the protrusion portion 32 can also be provided to extend along a plane (for example, the XY plane) that intersects the direction in which the protrusion portion 32 is inserted into the fixing portion 52 (Z direction).

[0081] Further, in the above-described embodiments, an example in which the insertion portion 31 is provided so as to penetrate the outer surface portion 30 is shown, but the present application is not limited to this. For example, the insertion portion 31 can also be provided as a recess that does not penetrate the outer surface portion 30.

[0082] Further, in the above-described embodiment, an example in which the protruding portion 32 is provided on the inner surface 31a of the insertion portion 31 on the side (X1 direction side) in the direction (X direction) intersecting the direction in which the fixing portion 52 is inserted, and the engaging portion 52a (first engaging portion) engages with the engaging portion 31b (second engaging portion) provided on the inner surface 31a of the insertion portion 31 on the other side (X2 direction side) in the direction (X direction) intersecting the direction in which the fixing portion 52 is inserted is shown, but the present application is not limited thereto. For example, the protruding portion 32 and the engaging portion 31b can also be provided in opposite directions on the same axis. For example, the protruding portion 32 can be provided on the inner surface 31a at a position deviated from the X1 direction. That is, the protruding portion 32 can be provided at a position deviated from the position on the side opposite to the position at which the engaging portion 31b (second engaging portion) is provided. Further, the protruding portion 32 and the engaging portion 31b can also be provided on the inner surface 31a on the Y direction side instead of the X direction side. That is, the protruding portion 32 and the engaging portion 31b (second engaging portion) can also be provided in a direction different from the direction (X direction) in which the fixing portion 52 is bent in order to open and close the cover portion 51. Further, the protruding portion 32 can be provided on the X2 direction side, and the engaging portion 31b can be provided on the X1 direction side.

[0083] Further, in the above-described embodiment, an example in which the protruding portion 32 is provided on the inner surface 31a of the insertion portion 31 on the side (X1 direction side) in the direction (X direction) intersecting the direction in which the fixing portion 52 is inserted, and the engaging portion 52a (first engaging portion) engages with the engaging portion 31b (second engaging portion) provided on the inner surface 31a of the insertion portion 31 on the other side (X2 direction side) in the direction (X direction) intersecting the direction in which the fixing portion 52 is inserted is shown, but the present application is not limited thereto. For example, the protruding portion 32 and the engaging portion 31b can also be provided in opposite directions on the same axis. For example, the protruding portion 32 can be provided on the inner surface 31a at a position deviated from the X1 direction. That is, the protruding portion 32 can be provided at a position deviated from the position on the side opposite to the position at which the engaging portion 31b (second engaging portion) is provided. Further, the protruding portion 32 and the engaging portion 31b can also be provided on the inner surface 31a on the Y direction side instead of the X direction side. That is, the protruding portion 32 and the engaging portion 31b (second engaging portion) can also be provided in a direction different from the direction (X direction) in which the fixing portion 52 is bent in order to open and close the cover portion 51. Further, the protruding portion 32 can be provided on the X2 direction side, and the engaging portion 31b can be provided on the X1 direction side.

[0084] Further, in the above-described embodiment, an example in which the protruding portion 32 is provided on the inner surface 31a of the insertion portion 31 on the side (X1 direction side) in the direction (X direction) intersecting the direction in which the fixing portion 52 is inserted, and the engaging portion 52a (first engaging portion) engages with the engaging portion 31b (second engaging portion) provided on the inner surface 31a of the insertion portion 31 on the other side (X2 direction side) in the direction (X direction) intersecting the direction in which the fixing portion 52 is inserted is shown, but the present application is not limited thereto. For example, the protruding portion 32 and the engaging portion 31b can also be provided in opposite directions on the same axis. For example, the protruding portion 32 can be provided on the inner surface 31a at a position deviated from the X1 direction. That is, the protruding portion 32 can be provided at a position deviated from the position on the side opposite to the position at which the engaging portion 31b (second engaging portion) is provided. Further, the protruding portion 32 and the engaging portion 31b can also be provided on the inner surface 31a on the Y direction side instead of the X direction side. That is, the protruding portion 32 and the engaging portion 31b (second engaging portion) can also be provided in a direction different from the direction (X direction) in which the fixing portion 52 is bent in order to open and close the cover portion 51. Further, the protruding portion 32 can be provided on the X2 direction side, and the engaging portion 31b can be provided on the X1 direction side.

[0085] Further, in the above-described embodiment, an example in which the protruding portion 32 is provided on the inner surface 31a of the insertion portion 31 so as to extend from one end portion side (Z1 direction side) of the inner surface 31a to the other end portion side (Z2 direction) of the inner surface 31a in the direction (Z direction) in which the insertion fixing portion 52 is inserted is shown, but the present application is not limited thereto. For example, the protruding portion 32 can be formed in a hemispherical shape instead of a columnar (cylindrical) shape extending in a predetermined direction. Further, instead of providing one protruding portion 32, a plurality of protruding portions can be provided.

[0086] Further, in the above-described embodiment, an example in which the protruding portion 32 is provided on the inner surface 31a of the insertion portion 31 provided on the outer surface portion 30 of the operation surface of the operation panel 3a is shown, but the present application is not limited thereto. For example, the insertion portion 31 and the protruding portion 32 can be provided on a portion other than the operation panel 3a by providing the communication terminal 4 (connection portion) on an outer surface (for example, a side surface or the like) of the housing 3 other than the operation panel 3a.

[0087] Further, in the above-described embodiment, an example in which the fixing portion 52 is formed of an elastically deformable rubber is shown, but the present application is not limited thereto. For example, the fixing portion 52 can include an elastically deformable raw material other than rubber.

[0088] Further, in the above-described embodiment, an example in which the cover portion 51 and the fixing portion 52 of the cover member 5 are integrally formed using rubber is shown, but the present application is not limited thereto. For example, the fixing portion 52 can be formed using an elastically deformable elastic raw material such as rubber, and the cover portion 51 can be formed using a raw material different from the fixing portion 52 such as resin.

[0089] Further, in the above-described embodiment, an example in which the cover portion 51 covers the communication terminal 4 (connection portion) including the USB terminal is shown, but the present application is not limited thereto. For example, the cover portion 51 can be configured to cover a LAN terminal (local area network terminal) or an HDMI (registered trademark) terminal other than the USB terminal. Further, the cover portion 51 can be configured to cover a connection portion including a memory card slot such as an SD card slot instead of a terminal such as the communication terminal 4.

[0090] Further, in the above-described embodiment, an example in which the area of the fixing portion 52 is smaller than the area of the cover portion 51 when viewed in the direction (Z direction) in which the insertion fixing portion 52 is inserted, and the area of the protruding portion 32 is further smaller than the area of the fixing portion 52 when viewed in the direction (Z direction) in which the insertion fixing portion 52 is inserted is shown, but the present application is not limited thereto. For example, the area of the fixing portion 52 can be larger than the area of the cover portion 51 when viewed in the direction (Z direction) in which the insertion fixing portion 52 is inserted.

[0091] Further, in the above-described embodiments, an example in which the power conversion section 1 is included in a converter device that converts and outputs input alternating-current power is shown, but the present application is not limited thereto. For example, the power conversion section 1 can be configured to convert and output direct-current power from input direct-current power. Further, the power conversion section 1 can be configured to convert and output alternating-current power from input direct-current power. That is, the power conversion device 100 can not be a converter device, but can be a DC-DC converter, a power conditioner, a battery charging device, or the like.

Claims

1. A power conversion device, wherein the power conversion device is provided with: a power conversion housing including an outer surface portion in which a connection portion for connecting an apparatus outside the device is provided, and a power conversion portion configured in an inside of the power conversion housing, the power conversion portion performing a power conversion operation of converting input power and outputting the power; and a cover member including a cover portion covering the connection portion and a fixing portion capable of elastically deforming for fixing the cover member to the power conversion housing, the cover member is mounted to the outer surface portion by inserting the fixing portion in an elastically deformed state into an insertion portion provided independently of the connection portion in the outer surface portion, either one of the fixing portion of the cover member and an inner surface of the insertion portion provided in the outer surface portion is provided with a protrusion portion that abuts against the other one of the fixing portion of the cover member and the inner surface of the insertion portion provided in the outer surface portion, and the protrusion portion has a width smaller than that of the fixing portion in a direction orthogonal to a direction in which the other one is abutted against, the fixing portion includes a first engagement portion independent of the protrusion portion, the first engagement portion being inserted into the insertion portion and engaged with the outer surface portion.

2. The power conversion device according to claim 1, wherein the protrusion portion provided in either one of the fixing portion and the inner surface of the insertion portion includes a surface shape in which a corner portion is chamfered or a surface shape having a rounded corner.

3. The power conversion device according to claim 2, wherein the protrusion portion is provided to have a semicircular surface shape, and a curved surface of the semicircular surface shape of the protrusion portion abuts against the other one.

4. The power conversion device according to claim 1, wherein for the protrusion portion provided in either one of the fixing portion and the inner surface of the insertion portion, a width in a direction orthogonal to a direction in which the protrusion portion abuts against the other one in a plane orthogonal to the direction in which the fixing portion is inserted is smaller than a corresponding width of the fixing portion.

5. The power conversion device according to claim 1, wherein the protrusion portion is provided to the inner surface of the insertion portion, the inner surface of the insertion portion has a second engagement portion engaged with the first engagement portion.

6. The power conversion device according to claim 5, wherein the insertion portion is provided in a manner penetrating the outer surface portion, the protrusion portion is provided to the inner surface of the insertion portion in a manner abutting against the fixing portion in a state in which the first engagement portion of the insertion portion penetrating the outer surface portion is engaged with the second engagement portion.

7. The power conversion device according to claim 5, wherein the protrusion portion is provided to one side of the inner surface of the insertion portion in a direction intersecting a direction in which the fixing portion is inserted in a manner abutting against the fixing portion, the first engagement portion is engaged with the second engagement portion provided to the other side of the inner surface of the insertion portion in the direction intersecting the direction in which the fixing portion is inserted. ​ 8. The power conversion device according to claim 5, wherein the protruding portion is provided on the inner surface of the insertion portion in a manner that a distance between the protruding portion and the second engaging portion in a direction in which the protruding portion and the fixed portion abut against each other is smaller than a thickness of a portion of the fixed portion that abuts against the protruding portion.

9. The power conversion device according to claim 5, wherein the insertion portion has a rectangular shape when viewed in a direction in which the fixed portion is inserted, the protruding portion is provided on the inner surface of the insertion portion at one side of a long side of the rectangular shape.

10. The power conversion device according to claim 5, wherein the protruding portion is provided on the inner surface of the insertion portion so as to extend from one end portion side of the inner surface to the other end portion side of the inner surface in a direction in which the fixed portion is inserted.

11. The power conversion device according to claim 1, wherein the housing for power conversion includes an operation panel that operates a power conversion operation performed by the power conversion portion, the protruding portion is provided on the inner surface of the insertion portion provided on the outer surface portion that is an operation surface of the operation panel.

12. The power conversion device according to claim 1, wherein the cover member includes the fixed portion formed of rubber that is elastically deformed, and the cover member is attached to the outer surface portion by pressing and inserting the fixed portion in an elastically deformed state into the insertion portion, the protruding portion is provided on the inner surface of the insertion portion and is configured to abut against the fixed portion that is inserted in an elastically deformed state.

13. The power conversion device according to claim 12, wherein the cover member is configured such that the lid portion is openable and closable in a state in which the cover member is attached to the outer surface portion by inserting the fixed portion that is elastically deformed into the insertion portion in a state of abutting against the protruding portion.

14. The power conversion device according to claim 1, wherein the lid portion covers the connection portion including a USB terminal or an SD card slot, an area of the fixed portion is smaller than an area of the lid portion when viewed in a direction in which the fixed portion is inserted, an area of the protruding portion is further smaller than the area of the fixed portion when viewed in the direction in which the fixed portion is inserted.

Images