Electric equipment

Abstract

To provide electric equipment capable of permitting deformation of the electric equipment due to an influence of attraction force and residual stress of a fixing member for fixing the electric equipment to a wall part.SOLUTION: Electric equipment of the present disclosure, includes: an installation plate having a coupling surface that couples a back surface contacted to an open of the wall part and a front surface, a back surface and a front surface on an inverse side of the back surface; a fixing member that fixes the installation plate to the wall part; a circuit board; a design cover having a cover surface; and a bonding part that bonds the installation plate with the design cover. The bonding part comprises: a projection part projected from the coupling surface; and a groove part fitted to the projection part. The projection part includes: a first projection part that an end part on the right side is on a right side from an end part on the right side of the fixing member in a direction vertical to the front surface so as to be inclined to a back surface direction toward a right from a left in the end part on the front surface side in view of a direction vertical to the coupling surface; and a second projection part on the left side that the end part on the left side is in the left side of the fixing member in the direction vertical to the front surface so as to be inclined to the back surface direction toward the left from the right in the end part on the front surface side in view from the direction vertical to the coupling surface.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present disclosure relates to electrical devices. [Background technology]

[0002] Conventionally, electrical equipment has been fixed and attached to an opening in a wall. Patent Document 1 discloses an electrical equipment (remote control) to be attached to a wall, in which locking claws are provided on the left and right sides of a frame member of the electrical equipment, and the electrical equipment has locking portions on the left and right sides of a main body for locking the locking claws. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2021-197410 A Summary of the Invention [Problem to be solved by the invention]

[0004] When fixing an electrical device to an opening in a wall, a fixing member is generally used to fix the electrical device to the wall. For example, the fixing member is a screw. However, when fixing the electrical device disclosed in Patent Document 1 to a wall, if a fixing member is used and the remote control is deformed in the left-right direction due to the influence of the attractive force and residual stress, there is a problem that the locking claw and the locked part cannot be locked.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to allow deformation of an electrical device due to the influence of the attractive force and residual stress of a fixing member that fixes the electrical device to a wall portion. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems and achieve the object, the electrical device according to the present disclosure has a mounting plate having a rear surface that contacts an opening in a wall, a front surface that is the surface opposite to the rear surface, a connecting surface that connects upper ends or lower ends of the rear surface and the front surface, a fixing member that fixes the mounting plate to the wall, a circuit board provided between the front surface and the rear surface, a decorative cover having a cover surface that covers the connecting surface, and a joint that joins the mounting plate and the decorative cover, the joint having a protrusion that protrudes from the connecting surface or the cover surface, and a fixing member that fixes the mounting plate to the wall, the fixing member ... The first protrusion has a groove that fits into the protrusion, and when viewed from a direction perpendicular to the connecting surface, the front end portion is inclined from left to right toward the rear face, and when viewed from the front side in a direction perpendicular to the front face, the right end portion is located to the right of the right end portion of the fixing member, forming a first protrusion, and when viewed from the front side in a direction perpendicular to the front face, the front end portion is inclined from right to left toward the rear face, and when viewed from the front side in a direction perpendicular to the front face, the second protrusion has a left end portion located to the left of the left end portion of the fixing member. Effect of the Invention

[0007] The electric device according to the present disclosure has an advantage in that it is possible to tolerate a certain amount of deformation of the electric device due to the influence of the attractive force of the fixing member that fixes the electric device to the wall portion and residual stress. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a perspective view of a remote control according to the first embodiment. [Diagram 2] FIG. 2 is an exploded perspective view of the remote control according to the first embodiment. [Diagram 3] 4 is a top view of the mounting plate and protrusions of the remote control in accordance with the first embodiment when the mounting plate is not deformed. FIG. [Figure 4] 4 is a front view of the mounting plate and protrusions of the remote control in accordance with the first embodiment when the mounting plate is not deformed. FIG. [Diagram 5] 11 is a top view of the design cover when the installation plate of the remote control in accordance with the first embodiment is not deformed. FIG. [Figure 6]13 is a cross-sectional view of the joint in a direction perpendicular to the up-down direction when the mounting plate of the remote control in accordance with embodiment 1 is not deformed and the decorative cover is fitted together. FIG. [Figure 7] 2 is a cross-sectional view of the remote control according to the first embodiment taken along line AA of FIG. [Figure 8] 2 is a cross-sectional view of the remote control according to the first embodiment taken along the line AA of FIG. 1, and is a partially enlarged view of the periphery of a first protrusion. FIG. [Figure 9] 2 is a cross-sectional view taken along the line AA in FIG. 1, enlarging the periphery of a first protrusion when deformation of the mounting plate of the remote control according to the first embodiment is within an allowable deformation amount. FIG. [Figure 10] 4 is a flowchart showing the procedure in installation work for the remote control in accordance with the first embodiment. [Figure 11] 13 is a front view of a mounting plate and a protrusion of a remote control according to a modified example of the first embodiment. FIG. [Figure 12] 13 is a front view of a switch box for fixing an installation plate of a remote control according to a modified example of the first embodiment. FIG. [Figure 13] 13 is an enlarged top view of the right portion of the mounting plate and the protrusion of the remote control in accordance with the second embodiment when the mounting plate is not deformed. FIG. [Figure 14] 13 is a rear view of the design cover and the protrusion when the mounting plate of the remote control in accordance with embodiment 3 is not deformed. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] In the embodiment of the present disclosure, a remote control, which is an example of an electrical device, will be described. Note that the present disclosure can be applied to electrical devices other than remote controls, and modifications or omissions can be made without departing from the spirit of the present disclosure. Also, common elements in each drawing are given the same reference numerals, and duplicated descriptions will be omitted.

[0010] Embodiment 1 FIG. 1 is a perspective view of the remote control 1 according to the first embodiment. FIG. 2 is an exploded perspective view of the remote control 1 according to the first embodiment. FIG. 3 is a top view of the mounting plate 2 and the protrusion 12 of the remote control 1 according to the first embodiment when the mounting plate 2 is not deformed. FIG. 4 is a front view of the mounting plate 2 and the protrusion 12 of the remote control 1 according to the first embodiment when the mounting plate 2 is not deformed. FIG. 5 is a top view of the design cover 5 of the remote control 1 according to the first embodiment when the mounting plate 2 is not deformed. FIG. 6 is a cross-sectional view of the joint 100 in a direction perpendicular to the up-down direction when the mounting plate 2 of the remote control 1 according to the first embodiment is not deformed and the design cover 5 is fitted together. FIG. 7 is a cross-sectional view of the joint 100 in a direction perpendicular to the up-down direction after the installation work of the remote control 1 according to the first embodiment, that is, the A-A cross-sectional view of FIG. 1. The configuration of the remote control 1 will be described with reference to FIGS. 1 to 7.

[0011] In the drawings of this disclosure, the up-down, left-right, and front-rear directions of the remote control 1 are defined. More specifically, the direction perpendicular to the top surface 2h is defined as the up-down direction, the direction perpendicular to the front surface 2b is defined as the front-rear direction, and the direction perpendicular to the up-down and front-rear directions is defined as the left-right direction. The definitions of these directions are for the purpose of explaining the embodiment, and do not limit the arrangement or orientation of the devices and components of this disclosure.

[0012] As shown in FIGS. 1 and 2, the remote control 1 has a screw 9, a mounting plate 2, a circuit board 3, a circuit cover 4, a design cover 5, and a joint 100.

[0013] The screw 9 is fixed to a switch box 8 provided on a wall surface 7. The switch box 8 fixes the remote control 1 to the wall portion 6. Furthermore, a connection cord 11 connects the remote control 1 to a device that the remote control 1 operates.

[0014] The switch box 8 has a front opening 8a, and is attached to the opening 7 of the wall 6 with the front opening 8a facing forward. An upper screw hole 8b into which an upper screw 9a, which is a long screw, is formed in the upper surface of the switch box 8. A lower screw hole 8c into which a lower screw 9b, which is a long screw, is formed in the lower surface of the switch box 8. In other words, the upper screw 9a and the lower screw 9b are an example of a fixing member that is a member for fixing the mounting plate 2 to the wall 6.

[0015] The switch box 8 also has a cord hole on the top surface thereof. The switch box 8 draws the connection cord 11 into the inside of the switch box 8 by inserting the connection cord 11 through the cord hole.

[0016] The mounting plate 2 has a back surface 2a, a front surface 2b, a right side surface 2c, a left side surface 2d, an upper screw penetration portion 2e, a lower screw penetration portion 2f, a bottom surface 2g, and a top surface 2h.

[0017] The rear surface 2a contacts the opening 7 of the wall portion 6. In other words, the outer shape of the rear surface 2a is larger than the opening 7 of the wall portion 6. The front surface 2b is the surface opposite to the rear surface 2a.

[0018] The right side surface 2c is a surface provided on the right side, and the left side surface 2d is a surface provided on the left side.

[0019] The upper screw through portion 2e is a hole corresponding to the upper screw hole 8b. The upper screw through portion 2e is a hole provided so as to penetrate from the front surface 2b to the rear surface 2a. The lower screw through portion 2f is a hole corresponding to the lower screw hole 8c. The lower screw through portion 2f is a hole provided so as to penetrate from the front surface 2b to the rear surface 2a.

[0020] The mounting plate 2 is fixed to the outside of the opening 7 of the wall portion 6. More specifically, the mounting plate 2 is fixed to the outside of the opening 7 of the wall portion 6 by screwing the upper screw 9a into the upper screw hole 8b with the upper screw 9a passing through the upper screw through portion 2e and screwing the lower screw 9b into the lower screw hole 8c with the lower screw 9b passing through the lower screw through portion 2f.

[0021] The bottom surface 2g is a surface that connects the lower ends of the back surface 2a, the front surface 2b, the right side surface 2c, and the left side surface 2d. The top surface 2h is a horizontal plane that connects the upper ends of the back surface 2a, the front surface 2b, the right side surface 2c, and the left side surface 2d. The top surface 2h is the opposite surface to the bottom surface 2g. The top surface 2h is also an example of a connecting surface.

[0022] 3, the first protrusion 12a is a protrusion provided on the right side of the upper surface 2h of the mounting plate 2. A first left end 120a, which is the left end of the first protrusion 12a, is provided to the right of the screw right end 90b. Also, a first right end 120b, which is the right end of the first protrusion 12a, is provided to the right of the screw right end 90b.

[0023] The second protrusion 12b is a protrusion provided on the left side of the upper surface 2h of the mounting plate 2. More specifically, a second right end 121b, which is the right end of the second protrusion 12b, is provided to the left of the position of the screw left end 90a, which is the left end of the upper screw 9a and the lower screw 9b. Therefore, a second left end 121a, which is the left end of the second protrusion 12b, is provided to the left of the position of the screw left end 90a.

[0024] The third protrusion 12c is a protrusion provided at the center of the top surface 2h of the remote control 1, and is a protrusion provided between the first protrusion 12a and the second protrusion 12b in the left-right direction. The third left end 124a, which is the left end of the third protrusion 12c, is provided to the right of the second right end 121b. The third right end 124b, which is the right end of the third protrusion 12c, is provided to the left of the first left end 120a. The screw 9 is provided between the third left end 124a and the third right end 124b of the third protrusion 12c. The center position of the third protrusion 12c in the left-right direction coincides with the center position 91c. The shape of the third protrusion 12c is a rectangular parallelepiped.

[0025] The first protrusion 12a and the second protrusion 12b are provided symmetrically with respect to the center position 91c.

[0026] 3, when the mounting plate 2 is not deformed, the first front end 120c, which is the end of the first protrusion 12a on the front surface 2b side, is inclined from left to right toward the rear surface 2a when viewed from above. Also, the second front end 121c, which is the end of the second protrusion 12b on the front surface 2b side, is inclined from right to left toward the rear surface 2a. The behavior of the protrusion 12 will be described later.

[0027] When the top surface 2h is viewed from above, the first protrusion 12a has a trapezoid shape in which the first left end 120a, which is the left end, and the first right end 120b, which is the right end, are parallel to each other. When the top surface 2h is viewed from above, the second protrusion 12b has a trapezoid shape in which the second left end 121a, which is the left end, and the second right end 121b, which is the right end, are parallel to each other.

[0028] The circuit board 3 is fixed to the front surface 2b of the mounting plate 2 and is provided between the rear surface 2a and the front surface 2b. The circuit board 3 is configured by arranging conductive wiring on an insulating plate.

[0029] The circuit cover 4 covers the circuit board 3 and protects the circuit board 3. That is, the circuit cover 4 is fixed to the front surface 2b of the mounting plate 2.

[0030] The design cover 5 covers the circuit cover 4. The design cover has a back surface 5a, a front surface 5b, a right side surface 5c, a left side surface 5d, a bottom surface 5g, and a top surface 5h. The back surface 5a covers the front surface 2b of the mounting plate 2. The front surface 5b is the opposite surface to the back surface 5a, and has a display unit 20 and an operation unit 30. The display unit 20 is, for example, a display, and displays the power on / off state and the operating state of the device operated by the remote control 1. The operation unit 30 is for operating the device operated by the remote control 1. The operation unit 30 is composed of operation buttons. The right side surface 5c, the left side surface 5d, the bottom surface 5g, and the top surface 5h cover the right side surface 2c, the left side surface 2d, the bottom surface 2g, and the top surface 2h of the mounting plate, respectively.

[0031] The joint 100 joins the mounting plate 2 and the decorative cover 5. The joint 100 includes a hole 13 and a protrusion 12.

[0032] The hole 13 is an opening provided in the upper surface 5h of the decorative cover 5. As shown in Fig. 5, the hole 13 has a rectangular shape when the decorative cover 5 is viewed from above.

[0033] As shown in FIG. 4, the protrusion 12 protrudes from the upper surface 2h. The protrusion 12 fits into the hole 13. As shown in FIG. 6, when the mounting plate 2 is not deformed, the protrusion 12 fits into the hole. The protrusion 12 includes a first protrusion 12a, a second protrusion 12b, and a third protrusion 12c. As shown in FIG. 4, the left screw end 90a is the left end of the upper screw through-hole 2e and the lower screw through-hole 2f, that is, the left end of the upper screw 9a and the lower screw 9b when the remote control 1 is fixed to the wall 6. The right screw end 90b is the right end of the upper screw through-hole 2e and the lower screw through-hole 2f, that is, the right end of the upper screw 9a and the lower screw 9b when the remote control 1 is fixed to the wall 6. The center position 91c is the center position in the left-right direction between the upper screw through-hole 2e and the lower screw through-hole 2f, that is, the center position in the left-right direction between the upper screw 9a and the lower screw 9b when the remote control 1 is fixed to the wall 6. In addition, in Fig. 4, for the purpose of explanation, the left end portion 90a of the screw, the right end portion 90b of the screw, and the center position 91c are indicated by dotted lines.

[0034] 3 and 7, the installation plate 2 is deformed by the installation work. More specifically, the central portion of the installation plate 2 in the left-right direction is deformed so as to be attracted toward the opening 7. This deformation occurs during the installation work, particularly when the installation plate 2 is screwed to the switch box 8. More specifically, when the upper screw 9a and the lower screw 9b are screwed, stress is generated near the upper screw hole and the lower screw hole of the installation plate 2 from the front surface 2b side to the rear surface 2a side, and as a result, the portion to the left of the left end 90a of the screw and the portion to the right of the right end 90b of the screw are deformed so as to move away from the wall portion 6. In particular, a large deformation occurs when the installation plate 2 is firmly screwed to the switch box 8.

[0035] Due to this deformation, a first front end 120c, which is a front end of the first protrusion 12a, and a second front end 121c, which is a front end of the second protrusion 12b, are deformed to approach a hole front end 13a, which is a front end of the hole 13. The hole 13 is provided in the decorative cover 5, and fits with the protrusion 12. This is because the first protrusion 12a and the second protrusion 12b are provided outside the opening 7 of the wall 6.

[0036] Furthermore, this deformation generates residual stress in the mounting plate 2. This is because the mounting plate 2 is plastically deformed so as to bend from the front surface 2b toward the rear surface 2b. The residual stress is generated from the rear surface 2a toward the front surface 2b.

[0037] Such deformation of the mounting plate 2 caused by the pulling force of the upper screw 9a and the lower screw 9b, and the effect of residual stress, may cause malfunction of the remote control 1 due to deformation, and may cause a poor appearance due to a gap occurring between the remote control 1 and the wall 6. However, it is preferable to design the mounting plate 2 so that deformation is allowed to a degree that does not cause malfunction or poor appearance. This is because in order to minimize deformation of the mounting plate 2, it is necessary to make the mounting plate 2 out of an expensive metal with high rigidity or a thick resin, which increases costs.

[0038] With the configuration disclosed in the first embodiment, the worker can sense the deformation on the left and right of the first protrusion 12a and the second protrusion 12b. Also, since the third protrusion 12c is provided in a place where deformation is unlikely to occur, it is attracted to the opening 7 side of the wall 6, so that the worker can sense the position of the part with less deformation. Therefore, with this configuration, the worker can sense the deformation of the mounting plate 2 in the left and right direction to an extent that fitting is impossible.

[0039] The remote control 1 according to the first embodiment can tolerate deformation up to the allowable deformation amount. Also, with this configuration, it is not necessary to configure the mounting plate 2 with expensive metal or thick resin to suppress deformation, which reduces costs.

[0040] FIG. 8 is a cross-sectional view of the joint 100 in a direction perpendicular to the vertical direction of the remote control 1 according to the first embodiment, and is a partially enlarged view of the periphery of the first protrusion 12a. That is, FIG. 8 is a partially enlarged view of the A-A cross-sectional view of FIG. 1. FIG. 9 is a cross-sectional view of the joint 100 in a direction perpendicular to the vertical direction, enlarging the periphery of the first protrusion 12a when the deformation of the mounting plate 2 of the remote control 1 according to the first embodiment is within the deformation allowance. That is, FIG. 9 is a partially enlarged view of the A-A cross-sectional view of FIG. 1. The deformation allowance is a value indicating the maximum allowable deformation of the remote control according to the first embodiment. The deformation allowance is determined by the designer in consideration of the installation situation and the like. The behavior of the protrusion 12 will be described with reference to FIG. 8 and FIG. 9.

[0041] 8, when the deformation of the mounting plate 2 is equal to or less than the deformation allowance and the protrusion 12 and the hole 13 are fitted together, the first front end 120c of the first protrusion 12a of the mounting plate 2 does not contact the hole front end 13a of the hole 13. In other words, there is a gap between the first front end 120c and the hole front end 13a.

[0042] 9, when the deformation of the mounting plate 2 is within the deformation allowance, the first front end 120c of the first protrusion 12a comes into contact with the hole front end 13a of the hole 13. When the deformation of the mounting plate 2 is greater than the deformation allowance, it becomes impossible for the first protrusion 12a and the hole 13 to fit together.

[0043] In addition, in the second protrusion 12b, when the deformation of the mounting plate 2 is equal to or less than the deformation allowance, a gap is formed between the second front end 121c and the hole front end 13a. When the deformation of the mounting plate 2 is equal to or greater than the deformation allowance, the second front end 121c and the hole front end 13a come into contact with each other.

[0044] In Fig. 8 and Fig. 9, the position of the first protrusion 12a in the case where the first protrusion 12a is a rectangular parallelepiped is indicated by a dotted line. By making the first protrusion 12a and the second protrusion 12b have the shape shown in the first embodiment, the width of the hole 13 in the design cover 5 can be designed to be smaller than that in the case where the first protrusion 12a and the second protrusion 12b are a rectangular parallelepiped, when the same amount of deformation is allowed. When the first protrusion 12a is a rectangular parallelepiped, the front end of the protrusion comes into contact with the front end 13a of the hole even with a small amount of deformation, so that even in the case of Fig. 8 where the amount of deformation of the mounting plate 2 is smaller than the allowable amount of deformation, it is impossible to fit the protrusion 12 and the hole 13 together. In addition, by making the configuration as in the first embodiment, the degree of freedom in designing the area around the hole 13 is increased, and the design cover 5 and the remote control 1 can be made thinner.

[0045] The size and position of the protrusion 12 may be determined by a designer through simulation or experimentation based on the strength and allowable strain of the mounting plate 2, the circuit board 3, or the circuit cover 4. For example, when it is desired to set the allowable deformation amount to be large, the inclination angle of the first front end 120c of the first protrusion 12a and the second front end 121c of the second protrusion 12b with respect to the rear surface 2a is increased. On the other hand, when it is desired to set the allowable deformation amount to be small, the inclination angle of the first front end 120c and the second front end 121c with respect to the rear surface 2a is decreased.

[0046] Fig. 10 is a flowchart showing the procedure in the installation work of the remote control 1 according to the embodiment 1. The procedure in the installation work of the remote control 1 will be described with reference to Fig. 10. The flowchart in Fig. 10 starts after each component is manufactured, the switch box 8 is fixed to the opening 7 in the wall surface 6, and the connection cord 11 is attached. Steps S101 to S104 in Fig. 10 are performed by a person or a machine.

[0047] In step S101, the mounting plate 2 is fixed to the switch box 8. More specifically, the mounting plate 2 is fixed to the switch box 8 by an upper screw 9a and a lower screw 9b.

[0048] Step S102 is a procedure performed after step S101. In step S102, it is determined whether the protrusion 12 of the mounting plate 2 can be fitted into the hole 13. That is, in step S102, it is determined whether the deformation caused in the mounting plate 2 is equal to or less than the deformation allowance.

[0049] If it is determined in step S102 that the protrusion 12 can be fitted into the hole 13 (Yes in step S102), the installation work is completed.

[0050] Step S103 is a procedure that is performed when protrusion 12 cannot be fitted into hole 13 in step S102 (No in step S102). In step S103, it is determined whether remote control 1 has any damaged parts. This is because there is a risk that a part has been damaged due to deformation of mounting plate 2 that is greater than the allowable deformation amount.

[0051] Step S104 is a procedure that is performed when it is determined in step S103 that there is a damaged part (Yes in step S103). In step S104, the part determined to be damaged in step S103 is replaced.

[0052] If it is determined in step S103 that there are no damaged parts (step S103, No), or after step S104 is completed, step S101 is performed again. That is, steps S101 to S104 are repeated until the deformation amount of the mounting plate 2 becomes equal to or less than the deformation allowance and the protrusion 12 can be fitted into the hole 13. If the protrusion 12 cannot be fitted into the hole 13 in step S102, this is because the deformation amount of the mounting plate 2 is greater than the deformation allowance. However, it is not necessary to re-screw the upper screw 9a and the lower screw 9b, but rather it is sufficient to take measures such as loosening the screws.

[0053] As described above, the electrical device (corresponding to the remote control 1) according to the first embodiment has the mounting plate 2 having the back surface 2a that contacts the opening 7 of the wall portion 6, the front surface 2b that is the surface opposite to the back surface 2a, a connecting surface (corresponding to the upper surface 2h) that connects the upper ends or lower ends of the back surface 2a and the front surface 2b, a fixing member (corresponding to the screw 9) that fixes the mounting plate 2 to the wall portion 6, the circuit board 3 provided between the front surface 2b and the back surface 2a, the decorative cover 5 having a cover surface (corresponding to the upper surface 5h) that covers the connecting surface, and a joint 100 that joins the mounting plate 2 and the decorative cover 5, the joint 100 including the protrusion 12 that protrudes from the connecting surface or the cover surface, and a groove portion (corresponding to the hole portion 13) that is provided on the cover surface or the connecting surface and that fits with the protrusion 12. When viewed from a direction perpendicular to the surface, the end portion on the front surface 2b side (corresponding to the first front end portion 120c) is inclined from left to right toward the rear surface 2a, and when viewed from the front surface 2b side in a direction perpendicular to the front surface 2b, the right end portion (corresponding to the first right end portion 120b) is provided to the right of the right end portion of the fixing member (corresponding to the right screw end portion 90b), which is a first protrusion portion 12a, and when viewed from a direction perpendicular to the connecting surface, the end portion on the front surface 2b side (corresponding to the second front end portion 121c) is inclined from right to left toward the rear surface 2a, and when viewed from the front surface 2b side in a direction perpendicular to the front surface 2b, the left end portion (corresponding to the second left end portion 121a) is provided to the left of the left end portion of the fixing member (corresponding to the left screw end portion 90a). With this configuration, the electric device according to the first embodiment has the effect of allowing a certain amount of deformation of the electric device due to the influence of the attractive force and residual stress of the fixing member that fixes the electric device to the wall portion.

[0054] Furthermore, the electric device (corresponding to the remote control 1) according to embodiment 1 has an additional configuration in which the left end (corresponding to the first left end 120a) of the first protrusion 12a is provided to the right of the right end (corresponding to the right screw end 90b) of the fixing member (corresponding to the screw 9) when viewed from the front face 2b in a direction perpendicular to the front face 2b, and the right end (corresponding to the second right end 121b) of the second protrusion 12b is provided to the left of the left end (corresponding to the left screw end 90a) of the fixing member when viewed from the front face 2b in a direction perpendicular to the front face 2b. This additional configuration allows the electric device according to embodiment 1 to have the effect of allowing the worker to more accurately sense deformation of the mounting plate in the left-right direction.

[0055] Furthermore, in the electric device (corresponding to the remote control 1) according to embodiment 1, as an additional configuration, the first protrusion 12a or the second protrusion 12b is trapezoidal when viewed from the connecting surface side in a direction perpendicular to the connecting surface (corresponding to the upper surface 2h). Due to this additional configuration, the electric device according to embodiment 1 has the effect of easily manufacturing the first protrusion and the second protrusion.

[0056] Moreover, in the electric device (corresponding to the remote control 1) according to the first embodiment, as an additional configuration, the fixing member (corresponding to the screw 9) generates stress from the front surface 2b toward the rear surface 2a. This additional configuration has the effect of allowing the worker to effectively sense the deformation of the mounting plate 2 due to the stress.

[0057] Furthermore, as an additional configuration, the electrical device (corresponding to the remote control 1) according to embodiment 1 has a fixing member (corresponding to the screw 9) which is a screw, and a screw hole corresponding to the screw is provided in the wall 6. This additional configuration has the effect of allowing the electrical device according to embodiment 1 to be easily fixed to the wall.

[0058] Furthermore, in the electric device (corresponding to the remote control 1) according to embodiment 1, as an additional configuration, protrusion 12 further has third protrusion 12c, which is provided between first protrusion 12a and second protrusion 12b in the left-right direction when viewed from the front face 2b in a direction perpendicular to the front face 2b. Due to this additional configuration, the electric device according to embodiment 1 has the effect of allowing the worker to more accurately sense deformation of the mounting plate in the left-right direction.

[0059] Furthermore, in the electric device (corresponding to the remote control 1) according to embodiment 1, as an additional configuration, a fixing member (corresponding to the screw 9) is provided between the left end (corresponding to the third left end 124a) of the third protrusion 12c and the right end (corresponding to the third right end 124b) of the third protrusion 12c in the left-right direction when viewed from the front face 2b side in a direction perpendicular to the front face 2b. This additional configuration provides the effect that the electric device according to embodiment 1 can provide the third protrusion 12c in a portion of the mounting plate 2 that is less deformed in the left-right direction.

[0060] Furthermore, the electric device (corresponding to the remote control 1) according to embodiment 1 has, as an additional configuration, a center position in the left-right direction of third protrusion 12c that coincides with center position 91c of the fixing member (corresponding to screw 9) in the left-right direction when viewed from the front face 2b side in a direction perpendicular to the front face 2b. This additional configuration provides the effect that the electric device according to embodiment 1 can provide third protrusion 12c in a portion of mounting plate 2 that is least deformed in the left-right direction.

[0061] Furthermore, the electric device (corresponding to the remote control 1) according to embodiment 1 has, as an additional configuration, third protrusion 12c, when viewed from the coupling surface side in a direction perpendicular to the coupling surface (corresponding to the top surface 2h), such that the right end (corresponding to the third right end 124b) is provided to the left of the left end (corresponding to the first left end 120a) of first protrusion 12a, and the left end (corresponding to the third left end 124a) is provided to the right of the right end (corresponding to the second right end 121b) of second protrusion 12b. This additional configuration provides the effect that the size of the protrusions can be reduced in the electric device according to embodiment 1.

[0062] In the first embodiment, the remote control is connected to the device to be operated by a wired connection cord, but this is not limited to the above. The remote control may be connected to the device wirelessly. In this case, there is no need to attach the connection cord to the switch box.

[0063] In addition, in the first embodiment, the mounting plate is screwed to the switch box, but the present invention is not limited to this. As long as the remote control is fixed to the opening in the wall by a fixing member, the fixing method is not limited. For example, the remote control may be fixed to the opening in the wall by using a stay pipe.

[0064] In addition, in the first embodiment, the circuit board is configured to be fixed to the mounting plate, but this is not limited thereto. The circuit board may be configured to be fixed to, for example, a design cover. The circuit board may be configured to be located between the front and rear faces of the mounting plate.

[0065] Moreover, in the first embodiment, the configuration includes a circuit cover, but the configuration may not include a circuit cover.

[0066] In addition, in the first embodiment, the protrusion is provided on the top surface of the mounting plate, but this is not limited thereto. The protrusion may be provided on the bottom surface of the mounting plate. Also, the mounting plate may have protrusions on both the top and bottom surfaces. With this configuration, even if only the top or bottom of the remote control is significantly deformed, the operator can sense the deformation.

[0067] In addition, in the first embodiment, the first protrusion and the second protrusion are arranged symmetrically with respect to a line, but this is not limited thereto. The first protrusion and the second protrusion may be configured to have different positions or sizes from the center position. Depending on the position of the operation unit or the display unit and the material of the remote control, there is a possibility that only the right or left side of the remote control may be deformed significantly. Therefore, by adopting such a configuration, it is possible to install protrusions that match the deformation tendency of the remote control.

[0068] In addition, in the first embodiment, the hole portion, which is a hole penetrating the upper surface of the decorative cover, is fitted with the first protrusion portion, the second protrusion portion, and the third protrusion portion, but this is not limited to the above. It may be configured to have three holes corresponding to the first protrusion portion, the second protrusion portion, and the third protrusion portion, respectively. It is also not necessary to have a hole penetrating the upper surface of the decorative cover. For example, it may be configured to have a groove with a bottom on the upper surface of the decorative cover.

[0069] In addition, in the first embodiment, the first left end of the first protrusion is provided to the right of the right end of the opening in the wall, and the second right end of the second protrusion is provided to the right of the left end of the opening in the wall, but this is not limited to the above. It is sufficient that the first right end of the first protrusion is provided to the right of the right end of the opening in the wall. It is also sufficient that the second left end of the second protrusion is provided to the left of the left end of the opening in the wall. If the protrusion has a portion to the right or left of the opening in the wall, the remote control will deform outside the opening in the wall, and the operator will be able to sense the deformation of the remote control.

[0070] In addition, in the first embodiment, the first protrusion and the second protrusion are trapezoidal when viewed from above, but are not limited thereto. It is sufficient that the first front end and the second front end are configured to be inclined from left to right toward the back surface 2a during construction. For example, the first protrusion and the second protrusion may be in the shape of a parallelogram when viewed from above, or may be in the shape of an inclined ellipse. The first protrusion and the second protrusion may have different shapes. Furthermore, the shape of the rear end of the first protrusion and the second protrusion may be freely determined.

[0071] In addition, in the first embodiment, the central position of the third protrusion coincides with the central positions of the upper screw hole and the lower screw hole in the left-right direction, but this is not limited thereto. The third left end of the third protrusion may be provided to the right of the left end of the opening, and the third right end may be provided to the left of the right end of the opening. This is because the third protrusion is located between the openings in the wall in the left-right direction, allowing the worker to sense the position of the installation plate with less deformation.

[0072] In addition, in the first embodiment, the third protrusion has a rectangular parallelepiped shape, but is not limited thereto. The shape of the third protrusion can be freely determined by the designer. The area around the position where the third protrusion is provided is a place where deformation is unlikely to occur, so the shape is not particularly limited.

[0073] In addition, in the first embodiment, the protrusion portion has three protrusions, but this is not limited thereto. The protrusion portion may not have a third protrusion portion. This is because the first protrusion portion and the second protrusion portion allow the worker to sense the deformation of the installation plate. The protrusion portion may have a protrusion portion other than the first protrusion portion, the second protrusion portion, and the third protrusion portion disclosed in the first embodiment.

[0074] A variation of the first embodiment. Next, a description will be given of a remote control 40 according to a variation of embodiment 1. The remote control 40 according to the variation of embodiment 1 is different from the remote control 1 according to embodiment 1 in the position where the mounting plate 42 is screwed to the switch box 38. The configuration other than the switch box 38, the mounting plate 42, and the protrusion 52 is the same as that of the remote control 1 according to embodiment 1, so a description will be omitted.

[0075] Fig. 11 is a front view of mounting plate 42 and protrusion 52 of remote control 40 according to a modification of embodiment 1. Fig. 12 is a front view of a switch box that fixes mounting plate 38 of remote control 40 according to a modification of embodiment 1. The configuration of remote control 40 according to the modification of embodiment 1 will be described with reference to Figs. 11 and 12.

[0076] In order to explain the position of the protrusion 52, Figure 11 shows with dotted lines the left-right position of the left screw end 98a, which is the left end of the upper screw 9a and the lower screw 9b, the left-right position of the right screw end 90b, which is the right end of the upper screw 9a and the lower screw 9b, and the left-right center position 91c of the upper screw 9a and the lower screw 9b.

[0077] As shown in Fig. 12, switch box 38 is a so-called two-unit switch box. An upper screw hole 38b into which an upper screw 9a, which is a long screw, is formed on the top surface of switch box 38. Upper screw 9a has an upper left screw installed on the left side and an upper right screw installed on the right side. Therefore, upper screw hole 38b has upper left screw hole 39a into which the upper left screw is screwed and upper right screw hole 39b into which the upper right screw is screwed.

[0078] A lower screw hole 38c into which a long lower screw 9b is screwed is formed on the underside of the switch box 38. The lower screw 9b has a lower left screw installed on the left side and a lower right screw installed on the right side. Therefore, the lower screw hole 38c has a lower left screw hole 39c into which the lower left screw is screwed and a lower right screw hole 39d into which the lower right screw 96b is screwed.

[0079] The mounting plate 42 has an upper left screw through portion 42a, an upper right screw through portion 42b, a lower left screw through portion 42c, and a lower right screw through portion 42d. The upper left screw through portion 42a, the upper right screw through portion 42b, the lower left screw through portion 42c, and the lower right screw through portion 42d are holes corresponding to the upper left screw hole 39a, the upper right screw hole 39b, the lower left screw hole 39c, and the lower right screw hole 39d, respectively, and are provided penetrating from the front side to the back side of the mounting plate.

[0080] 11, when viewed from the front-rear direction, which is a direction perpendicular to the front surface 2b, the protrusion 52 protrudes upward from the upper surface 42h. The protrusion 52 includes a first protrusion 52a, a second protrusion 52b, and a third protrusion 52c.

[0081] The first protrusion 52a is a protrusion provided on the right side of the mounting plate 42. More specifically, a first left end 520a, which is the left end of the first protrusion 52a, is provided to the right of the screw right end 98b. Therefore, a first right end 520b, which is the right end of the first protrusion 52a, is provided to the right of the screw right end 98b.

[0082] The second protrusion 52b is a protrusion provided on the left side of the mounting plate 42. More specifically, a second right end 522b, which is the right end of the second protrusion 52b, is provided to the left of the screw left end 98a. Therefore, a second left end 522a, which is the left end of the second protrusion 52b, is provided to the left of the screw left end 98a.

[0083] The third protrusion 52c is a protrusion provided at the center of the remote control 40, and is a protrusion provided between the first protrusion 52a and the second protrusion 52b in the left-right direction. More specifically, the center position of the third protrusion 52c in the left-right direction coincides with 92c, which is the center position of the upper screw 9a and the lower screw 9b.

[0084] In the left-right direction, the portion between the left end portions of the upper left screw 95a and the lower left screw 96a and the right end portions of the upper right screw 95b and the lower right screw 96b is the portion that is attracted to the opening 7 in the wall portion 6. In order for an operator to sense the deformation of the mounting plate 42 by the protrusions, it is necessary to provide the first protrusion 52a and the second protrusion 52b in the portion where deformation occurs and to provide the third protrusion 52c in the portion that is attracted to the opening in the wall portion, and therefore the protrusions 52 are positioned as disclosed herein.

[0085] Although the mounting plate 42 of the remote control 40 according to the modification of the first embodiment is configured to be fixed to the switch box by being screwed into two screw holes provided at the top and two at the bottom, this is not limited thereto. The mounting plate may be configured to be screwed into three screw holes, or may be configured to be screwed into five or more screw holes.

[0086] As described above, the electrical device (corresponding to remote control 40) according to the modified example of embodiment 1 has a rear surface 2a that contacts opening 7 of wall portion 6, a front surface 2b that is the surface opposite to rear surface 2a, a mounting plate 42 having a connecting surface (corresponding to upper surface 42h) that connects upper ends or lower ends of rear surface 2a and front surface 2b, fixing members (corresponding to screws 9) that fix mounting plate 42 to wall portion 6, a circuit board 3 provided between front surface 2b and rear surface 2a, a decorative cover 5 having a cover surface (corresponding to upper surface 5h) that covers the connecting surface, and a joint 100 that joins mounting plate 42 and decorative cover 5, and joint 100 has a protrusion 12 that protrudes from the connecting surface or cover surface, and a groove portion (corresponding to hole portion 13) that is provided on the cover surface or connecting surface and engages with protrusion 12, The rising portion 12 has a first protrusion 12a in which the end portion on the front surface 2b side (corresponding to the first front end portion 120c) is inclined from left to right toward the rear surface 2a when viewed from the front surface 2b side in a direction perpendicular to the front surface 2b, and the right end portion (first right end portion 120b) is provided to the right of the right end portion of the fixing member (corresponding to the right screw end portion 98b) when viewed from the front surface 2b side in a direction perpendicular to the front surface 2b, and a second protrusion 12b in which the end portion on the front surface 2b side (corresponding to the second front end portion 121c) is inclined from right to left toward the rear surface 2a when viewed from the front surface 2b side in a direction perpendicular to the front surface 2b, and the left end portion (corresponding to the second left end portion 121b) is provided to the left of the left end portion of the fixing member (left screw end portion 98a) when viewed from the front surface 2b side in a direction perpendicular to the front surface 2b. With this configuration, the electric device according to the modified example of the first embodiment has the same effect as that described in the first embodiment.

[0087] Embodiment 2 A remote control 50 according to embodiment 2 will be described. The remote control 50 according to embodiment 2 differs from embodiment 1 in the front-rear position of the protrusion 62. The configuration of the remote control 50 according to embodiment 2, except for the front-rear position of the protrusion 62, is the same as that of embodiment 1, and therefore description thereof will be omitted.

[0088] 13 is an enlarged top view of the right portion of the mounting plate 2 and the protrusion 62 of the remote control 50 according to the embodiment 2. The configuration and effect of the protrusion 62 of the remote control 50 will be described with reference to FIG.

[0089] As shown in Figure 13, when the mounting plate 2 and the protrusion 62 are viewed from above when the mounting plate 2 is not deformed, the distance 626 between the third rear end 124d, which is the rear end of the third protrusion 62c, and the back surface 2a is shorter than the distance 625 between the first rear end 120d, which is the rear end of the first protrusion 62a, and the back surface 2a of the mounting plate 2.

[0090] Similarly, the distance between the second rear end portion, which is the rear end portion of the second protrusion portion, and the rear surface 2a of the mounting plate 2 is longer than the distance 626 between the third rear end portion 124d, which is the rear end portion of the third protrusion portion 62c, and the rear surface 2a.

[0091] The mounting plate 2 of the remote control 50 according to the second embodiment is also deformed by the installation work. More specifically, the central portion of the mounting plate 2 in the left-right direction is deformed so as to be attracted toward the opening 7. This deformation occurs during the installation work, particularly when the mounting plate 2 is screwed to the switch box 8. More specifically, when the upper screw 9a and the lower screw 9b are screwed, stress is generated from the front to the rear near the upper screw hole and the lower screw hole of the mounting plate 2, and as a result, the portion to the left of the left end 90a of the screw and the portion to the right of the right end 90b of the screw are deformed so as to move away from the wall 6. In particular, a large deformation occurs when the mounting plate 2 is firmly screwed to the switch box 8.

[0092] Furthermore, by providing the protrusion 62 as in the second embodiment, it is possible to prevent a gap from being generated between the decorative cover 5 and the wall 6. This is because the third protrusion 62c, which is provided at a position where the amount of deformation of the mounting plate 2 is small during construction work, can be fixed at a location close to the wall 6.

[0093] As described above, the electrical device (corresponding to remote control 50) according to embodiment 2 has a mounting plate 2 having a rear surface 2a that contacts opening 7 of wall 6, a front surface 2b that is the surface opposite to rear surface 2a, a connecting surface (corresponding to upper surface 2h) that connects upper ends or lower ends of rear surface 2a and front surface 2b, a fixing member (corresponding to screw 9) that fixes mounting plate 2 to wall 6, circuit board 3 provided between front surface 2b and rear surface 2a, decorative cover 5 having a cover surface (corresponding to upper surface 5h) that covers the connecting surface, and a joint 100 that joins mounting plate 2 and decorative cover 5, and joint 100 has protrusion 62 that protrudes from the connecting surface or cover surface, and a groove portion (corresponding to hole portion 13) that is provided on the cover surface or connecting surface and engages with protrusion 62, and protrusion 62 is When viewed from a direction perpendicular to the coupling surface, the end portion (first front end portion 120a) on the front surface 2b side is inclined from left to right toward the rear surface 2a, and when viewed from the front surface 2b side in a direction perpendicular to the front surface 2b, the right end portion (corresponding to the first right end portion 120b) is provided to the right of the right end portion of the fixing member (corresponding to the right screw end portion 90b), which is a first protrusion portion 62a, and when viewed from a direction perpendicular to the coupling surface, the end portion (corresponding to the second front end portion 121c) on the front surface 2b side is inclined from right to left toward the rear surface 2a, and when viewed from the front surface 2b side in a direction perpendicular to the front surface 2b, the left end portion (corresponding to the second left end portion 121a) is provided to the left of the left end portion of the fixing member (corresponding to the left screw end portion 90a), which is a second protrusion portion 62b. With this configuration, the electric device according to the second embodiment has the same effects as those described in the first embodiment.

[0094] Furthermore, the electric device (corresponding to the remote control 50) according to the second embodiment has an additional configuration in which, when viewed from the coupling surface side in a direction perpendicular to the coupling surface (corresponding to the top surface 2h), the distance between the end portion (corresponding to the third rear end portion 124d) of the third protrusion 62c on the rear surface 2a side and the rear surface 2a is shorter than the distance between the end portion (corresponding to the first rear end portion 120d) of the first protrusion 62a on the rear surface 2a side and the rear surface 2a, and is also shorter than the distance between the end portion (corresponding to the second rear end portion 122d) of the second protrusion 62b on the rear surface 2a side and the rear surface 2a. With this additional configuration, the electric device according to the second embodiment has the effect of preventing the occurrence of a gap between the decorative cover 5 and the wall portion 6.

[0095] Embodiment 3 A remote control 80 according to embodiment 3 will be described. The remote control 80 according to embodiment 3 is different from embodiments 1 and 2 in the configuration of the joint unit 200. The configuration of the remote control 80 excluding the joint unit 200 is the same as in embodiments 1 and 2, so the description will be omitted.

[0096] 14 is a rear view of the design cover 85 and the protrusions 92 of the remote control 80 when the mounting plate 82 according to the third embodiment is not deformed. The configuration of the remote control 80 will be described with reference to FIG.

[0097] The joint 200 in the remote control 80 of the third embodiment has a protrusion 92 and a hole.

[0098] 14, when the mounting plate 82 is not deformed, the protrusion 92 protrudes downward from the upper surface 85h of the decorative cover 85. The protrusion 92 has a first protrusion 92a, a second protrusion 92b, and a third protrusion 92c. The shapes of the first protrusion 92a, the second protrusion 92b, and the third protrusion 92c are the same as those in the first and second embodiments.

[0099] The upper surface of the mounting plate 82 has grooves for fitting with the first protrusion 92a, the second protrusion 92b, and the third protrusion 92c. With this configuration, the mounting plate 82 can be fitted with the protrusions 92 when the deformation of the mounting plate 82 is equal to or smaller than the allowable deformation value.

[0100] As described above, the electrical device (corresponding to remote control 80) according to embodiment 3 has a rear surface 2a that contacts opening 7 of wall 6, a front surface 2b that is the surface opposite to rear surface 2a, an installation plate 82 having a connecting surface (corresponding to upper surface 2h) that connects upper ends or lower ends of rear surface 2a and front surface 2b, a fixing member (corresponding to screw 9) that fixes installation plate 82 to wall 6, a circuit board 3 provided between front surface 2b and rear surface 2a, a design cover 85 having a cover surface (corresponding to upper surface 85h) that covers the connecting surface, and a joint 100 that joins installation plate 82 and design cover 85, and joint 100 has a protrusion protruding from the connecting surface or cover surface, and a groove portion (corresponding to a hole portion) that is provided on the cover surface or connecting surface and engages with protrusion portion 92, and protrusion portion 92 is When viewed from a direction perpendicular to the coupling surface, the end portion on the front surface 2b side (corresponding to the first front end portion 120c) is inclined from left to right toward the rear surface 2a, and when viewed from the front surface 2b side in a direction perpendicular to the front surface 2b, the right end portion (corresponding to the first right end portion 120b) has a first protrusion portion 92a provided to the right of the right end portion of the fixing member (corresponding to the right screw end portion 90b), and when viewed from a direction perpendicular to the coupling surface, the end portion on the front surface 2b side (corresponding to the second front end portion 121c) is inclined from right to left toward the rear surface 2a, and when viewed from the front surface side 2b in a direction perpendicular to the front surface 2b, the left end portion (corresponding to the second left end portion 121a) has a second protrusion portion 92b provided to the left of the left end portion of the fixing member (corresponding to the left screw end portion 90a). With this configuration, the remote control 80 according to the third embodiment has the same effects as those described in the first embodiment.

[0101] In the third embodiment, the decorative cover has only a protrusion, and the mounting plate has only a hole that fits with the protrusion, but this is not limited to the above. The decorative cover and the mounting plate may each have one or more protrusions and holes. For example, the decorative cover may have holes that fit with the first protrusion, the second protrusion, and the third protrusion, and the mounting plate may have holes that fit with the third protrusion, the first protrusion, and the second protrusion.

[0102] Although the preferred embodiments have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications and substitutions can be made to the above-described embodiments without departing from the scope of the claims.

[0103] Various aspects of the present disclosure are summarized below as appendices. (Appendix 1) an installation plate having a back surface in contact with the opening of the wall portion, a front surface that is the opposite surface of the back surface, and a connecting surface that connects upper ends or lower ends of the back surface and the front surface; A fixing member for fixing the mounting plate to the wall portion; A circuit board disposed between the front surface and the rear surface; A design cover having a cover surface that covers the connecting surface; A joint portion that joins the mounting plate and the decorative cover; having The joint portion includes a protrusion portion protruding from the connecting surface or the cover surface, and a groove portion provided on the cover surface or the connecting surface and engaging with the protrusion portion, The protrusion is a first protrusion portion having an end portion on the front side that is inclined from left to right toward the rear side when viewed from a direction perpendicular to the connecting surface, and a right end portion on the right side of the right end portion of the fixing member when viewed from the front side in a direction perpendicular to the front surface; a second protrusion portion having an end portion on the front side that is inclined from right to left toward the rear side when viewed from a direction perpendicular to the connecting surface, and a left end portion on the left side of the left end portion of the fixing member when viewed from the front side in a direction perpendicular to the front surface; An electrical device having (Appendix 2) When viewed from the front side in a direction perpendicular to the front surface, a left end portion of the first protrusion portion is provided to the right of a right end portion of the fixing member, When viewed from the front side in a direction perpendicular to the front surface, a right end of the second protrusion is provided to the left of a left end of the fixing member. 2. An electrical device as described in Appendix 1. (Appendix 3) The first protrusion or the second protrusion has a trapezoidal shape when viewed from the connecting surface in a direction perpendicular to the connecting surface. 1. An electrical device as defined in claim 1 or 2. (Appendix 4) The fixing member generates a stress from the front surface to the rear surface. An electrical device according to any one of appendix 1 to 3. (Appendix 5) The fixing member is a screw, The wall portion is provided with a screw hole corresponding to the screw. 1. An electrical device as described in Appendix 4. (Appendix 6) The protrusion further includes a third protrusion, The third protrusion is provided between the first protrusion and the second protrusion in the left-right direction when viewed from the front side in a direction perpendicular to the front surface. An electrical device according to any one of appendix 1 to 5. (Appendix 7) The fixing member is provided between a left end portion of the third protrusion and a right end portion of the third protrusion in the left-right direction when viewed from the front side in a direction perpendicular to the front surface. 1. Electrical equipment as described in Appendix 6. (Appendix 8) When viewed from the front side in a direction perpendicular to the front surface, a center position of the third protrusion in a left-right direction coincides with a center position of the fixing member in the left-right direction. 8. An electrical device as described in appendix 6 or 7. (Appendix 9) When viewed from the connecting surface in a direction perpendicular to the connecting surface, the third protrusion has a right end portion provided to the left of the left end portion of the first protrusion, and a left end portion provided to the right of the right end portion of the second protrusion. An electrical device according to any one of appendix 6 to 8. (Appendix 10) When viewed from the connecting surface side in a direction perpendicular to the connecting surface, a distance between the rear end of the third protrusion and the rear surface is shorter than a distance between the rear end of the first protrusion and the rear surface, and is also shorter than a distance between the rear end of the second protrusion and the rear surface. 10. An electrical device according to any one of claims 6 to 9. [Explanation of symbols]

[0104] 1 remote control, 2 mounting plate, 2a rear, 2b front, 2c right side, 2d left side, 2e upper screw through-hole, 2f lower screw through-hole, 2g bottom, 2h top, 3 circuit board, 4 circuit cover, 5 design cover, 5a rear, 5b front, 5c right side, 5d left side, 5g bottom, 5h top, 6 wall, 7 opening, 8 switch box, 8a front opening, 8b upper screw hole, 8c lower screw hole, 9 screw, 9a upper screw, 9b lower screw, 11 connection cord, 12 protrusion, 12a first protrusion, 12b second protrusion, 12c third protrusion, 13 hole, 13a hole front end, 20 display, 30 operation, 38 switch box, 38b upper screw hole, 38c Lower screw hole, 39a upper left screw hole, 39b upper right screw hole, 39c lower left screw hole, 39d lower right screw hole, 40 remote control, 40b top surface, 42 mounting plate, 42a upper left screw hole, 42b upper right screw hole, 42c lower left screw hole, 42d lower right screw hole, 42h top surface, 50 remote control, 52 protrusion, 52a first protrusion, 52b second protrusion, 52c third protrusion, 62 protrusion, 62a first protrusion, 62b second protrusion, 62c third protrusion, 80 remote control, 82 mounting plate, 83 hole, 85 design cover, 85a top surface, 90a left end of screw, 90b right end of screw, 91c center position, 92 protrusion, 92a first protrusion, 92b Second protrusion, 92c Third protrusion, 95a Top left screw, 95b Top right screw, 96a Bottom left screw, 96b Bottom right screw, 98a Screw left end, 98b Screw right end, 100 Joint, 120a First left end, 120b First right end, 120c First front end, 120d First rear end, 121a Second left end, 121b Second right end, 121c Second front end, 122d Second rear end, 124a Third left end, 124b Third right end, 124d Third rear end, 200 Joint, 520a First left end, 520b First right end, 522a Second left end, 522b Second right end, 625 Distance, 626 Distance.

Claims

1. an installation plate having a back surface in contact with the opening of the wall portion, a front surface that is the opposite surface of the back surface, and a connecting surface that connects upper ends or lower ends of the back surface and the front surface; A fixing member for fixing the mounting plate to the wall portion; A circuit board disposed between the front surface and the rear surface; A design cover having a cover surface that covers the connecting surface; A joint portion that joins the mounting plate and the decorative cover; having The joint portion includes a protrusion portion protruding from the connecting surface or the cover surface, and a groove portion provided on the cover surface or the connecting surface and engaging with the protrusion portion, The protrusion is a first protrusion portion having an end portion on the front side that is inclined from left to right toward the rear side when viewed from a direction perpendicular to the connecting surface, and a right end portion on the right side of the right end portion of the fixing member when viewed from the front side in a direction perpendicular to the front surface; a second protrusion portion having an end portion on the front side that is inclined from right to left toward the rear side when viewed from a direction perpendicular to the connecting surface, and a left end portion on the left side of the left end portion of the fixing member when viewed from the front side in a direction perpendicular to the front surface; An electrical device having

2. When viewed from the front side in a direction perpendicular to the front surface, a left end portion of the first protrusion portion is provided to the right of a right end portion of the fixing member, When viewed from the front side in a direction perpendicular to the front surface, a right end of the second protrusion is provided to the left of a left end of the fixing member.

2. The electrical device according to claim 1.

3. The first protrusion or the second protrusion has a trapezoidal shape when viewed from the connecting surface in a direction perpendicular to the connecting surface.

2. The electrical device according to claim 1.

4. The fixing member generates a stress from the front surface to the rear surface.

2. The electrical device according to claim 1.

5. The fixing member is a screw, The wall portion is provided with a screw hole corresponding to the screw.

5. An electrical device according to claim 4.

6. The protrusion further includes a third protrusion, The third protrusion is provided between the first protrusion and the second protrusion in the left-right direction when viewed from the front side in a direction perpendicular to the front surface.

2. The electrical device according to claim 1.

7. The fixing member is provided between a left end portion of the third protrusion and a right end portion of the third protrusion in the left-right direction when viewed from the front side in a direction perpendicular to the front surface.

7. An electrical device according to claim 6.

8. When viewed from the front side in a direction perpendicular to the front surface, a center position of the third protrusion in a left-right direction coincides with a center position of the fixing member in the left-right direction.

7. An electrical device according to claim 6.

9. When viewed from the connecting surface in a direction perpendicular to the connecting surface, the third protrusion has a right end portion provided to the left of the left end portion of the first protrusion, and a left end portion provided to the right of the right end portion of the second protrusion.

7. An electrical device according to claim 6.

10. When viewed from the connecting surface side in a direction perpendicular to the connecting surface, a distance between the rear end of the third protrusion and the rear surface is shorter than a distance between the rear end of the first protrusion and the rear surface, and is also shorter than a distance between the rear end of the second protrusion and the rear surface.

7. An electrical device according to claim 6.

Images