Electrical 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] This disclosure relates to electrical equipment.

Background Art

[0002] Conventionally, an electrical device has been fixed and attached to an opening provided in a wall portion. Patent Document 1 discloses an electrical device provided with locking claws on the left and right sides of a frame member of an electrical device (remote control) attached to a wall portion, and provided with locking portions for locking the respective locking claws on the left and right sides of the main body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When fixing an electrical device to an opening provided in a wall portion, it is common to use a fixing member for fixing the electrical device to the wall portion. For example, the fixing member is a screw. However, when fixing the electrical device disclosed in Patent Document 1 to a wall portion, when using a fixing member, if deformation occurs in the left-right direction of the remote control due to the influence of the pulling force and residual stress, there is a problem that the locking claw and the locking portion cannot be locked.

[0005] This disclosure has been made to solve the above-described problems, and an object thereof is to allow deformation of an electrical device due to the influence of the pulling force and residual stress of a fixing member for fixing the electrical device to a wall portion.

Means for Solving the Problems

[0006] To solve the above-mentioned problems and achieve the objective, the electrical equipment according to this disclosure has a mounting plate having a back surface in contact with an opening in the wall, a front surface which is the opposite side of the back surface, and a connecting surface that connects the upper ends or lower ends of the back surface and the front surface, a fixing member for fixing the mounting plate to the wall, a circuit board provided between the front surface and the back 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, wherein the joint has a projection that protrudes from the connecting surface or the cover surface and is provided on the cover surface or the connecting surface The projection has a groove that fits into the projection, and the projection has a first projection whose front end is inclined from left to right toward the rear when viewed from a direction perpendicular to the connecting surface, and whose right end is located to the right of the right end of the fixing member when viewed from the front in a direction perpendicular to the front, and a second projection whose front end is inclined from right to left toward the rear when viewed from a direction perpendicular to the connecting surface, and whose left end is located to the left of the left end of the fixing member when viewed from the front in a direction perpendicular to the front, When viewed from the front in a direction perpendicular to the front, the third projection is located between the first projection and the second projection in the left-right direction. It has. [Effects of the Invention]

[0007] The electrical equipment of this disclosure has the effect of allowing a certain amount of deformation of the electrical equipment due to the effects of the tension force and residual stress of the fixing member that fixes the electrical equipment to the wall. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view of the remote control according to Embodiment 1. [Figure 2] This is a disassembled perspective view of the remote control according to Embodiment 1. [Figure 3] This is a top view of the mounting plate and protrusions of the remote control according to Embodiment 1, when the mounting plate is not deformed. [Figure 4] This is a front view of the mounting plate and protrusions of the remote control according to Embodiment 1, when the mounting plate is not deformed. [Figure 5] This is a top view of the design cover when the mounting plate of the remote control according to Embodiment 1 is not deformed. [Figure 6]This is a cross-sectional view of the joint portion perpendicular to the vertical direction when the mounting plate and the design cover are fitted together, in the case where the mounting plate of the remote control according to Embodiment 1 is not deformed. [Figure 7] This is a cross-sectional view of the remote control according to Embodiment 1, taken along line A-A in Figure 1. [Figure 8] This is a cross-sectional view of the remote control according to Embodiment 1, taken from line A-A in Figure 1, and is a partially enlarged view showing the area around the first projection. [Figure 9] This is a cross-sectional view taken along line A-A in Figure 1, showing an enlarged view of the area around the first protrusion when the deformation of the mounting plate of the remote control according to Embodiment 1 is within the deformation tolerance. [Figure 10] This is a flowchart showing the procedure for the installation work of the remote control according to Embodiment 1. [Figure 11] This is a front view of the mounting plate and protrusion of the remote control according to a modified example of Embodiment 1. [Figure 12] This is a front view of a switch box for fixing the mounting plate of a remote control according to a modified example of Embodiment 1. [Figure 13] This is an enlarged top view of the right portion of the mounting plate and protrusion when the mounting plate of the remote control according to Embodiment 2 is not deformed. [Figure 14] This is a rear view of the design cover and protrusions when the mounting plate of the remote control according to Embodiment 3 is not deformed. [Modes for carrying out the invention]

[0009] This disclosure describes an embodiment of an electrical device, specifically a remote control. This disclosure is also applicable to electrical devices other than remote controls, and modifications or omissions are permitted without departing from the spirit of this disclosure. Furthermore, common elements in each figure are denoted by the same reference numerals, and redundant explanations are omitted.

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

[0011] In the drawings of the present disclosure, the up / down, left / right, and front / rear directions of the remote control 1 are defined. More specifically, the direction perpendicular to the upper 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 direction and the front / rear direction is defined as the left / right direction. These definitions of the directions are for the purpose of explaining the embodiments and do not limit the arrangement and orientation of the devices and components of the present disclosure.

[0012] As shown in FIGS. 1 and 2, the remote control 1 includes 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 the wall surface 7 of the wall. The switch box 8 fixes the remote control 1 to the wall portion 6. Also, the connection cord 11 connects the remote control 1 and the device that the remote control 1 operates.

[0014] The switch box 8 has a shape with a front opening 8a, and is attached to the opening 7 of the wall portion 6 with the front opening 8a facing forward. On the upper surface of the switch box 8, an upper screw hole 8b for screwing the upper screw 9a, which is a long screw, is formed. On the lower surface of the switch box 8, a lower screw hole 8c for screwing the lower screw 9b, which is a long screw, is formed. That is, 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 portion 6.

[0015] Also, the switch box 8 has a cord hole on its upper surface. By inserting the connection cord 11 into the cord hole of the switch box 8, the connection cord 11 is drawn into the inside of the switch box 8.

[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 through portion 2e, a lower screw through portion 2f, a bottom surface 2g, and an upper surface 2h.

[0017] The back surface 2a contacts the opening 7 of the wall portion 6. That is, the outer shape of the back surface 2a is larger than the opening 7 of the wall portion 6. The front surface 2b is the surface on the opposite side of the back surface 2a.

[0018] The right side surface 2c is a surface provided in the right direction. The left side surface 2d is a surface provided in the left direction.

[0019] The upper screw through portion 2e is a hole corresponding to the upper screw hole 8b. Also, the upper screw through portion 2e is a hole provided to penetrate from the front surface 2b toward the back surface 2a. The lower screw through portion 2f is a hole corresponding to the lower screw hole 8c. Also, the lower screw through portion 2f is a hole provided to penetrate from the front surface 2b toward the back surface 2a.

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

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

[0022] As shown in Figure 3, the first projection 12a is a projection provided on the right side of the upper surface 2h of the mounting plate 2. The first left end 120a, which is the left end of the first projection 12a, is provided to the right of the screw right end 90b. Also, the first right end 120b, which is the right end of the first projection 12a, is provided to the right of the screw right end 90b.

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

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

[0025] Furthermore, the first projection 12a and the second projection 12b are arranged symmetrically with respect to the central position 91c.

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

[0027] Furthermore, when viewed from above on the upper surface 2h, the first projection 12a has a trapezoidal shape with its left end, the first left end 120a, and its right end, the first right end 120b, being parallel. Also, when viewed from above on the upper surface 2h, the second projection 12b has a trapezoidal shape with its left end, the second left end 121a, and its right end, the second right end 121b, being parallel.

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

[0029] The circuit cover 4 covers and protects the circuit board 3. In other words, 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 rear 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 rear surface 5a covers the front surface 2b of the mounting plate 2. The front surface 5b is the opposite side of the rear surface 5a and has a display unit 20 and an operation unit 30. The display unit 20 is, for example, a display that shows the power on / off status and operating status 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 consists 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 connects the mounting plate 2 and the decorative cover 5. The joint 100 includes a hole 13 and a projection 12.

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

[0033] As shown in Figure 4, the projection 12 protrudes from the upper surface 2h. The projection 12 engages with the hole 13. As shown in Figure 6, when the mounting plate 2 is not deformed, the projection 12 and the hole are engaged. The projection 12 also comprises a first projection 12a, a second projection 12b, and a third projection 12c. As also shown in Figure 4, the left end 90a of the screw is the left end of the upper screw penetration 2e and the lower screw penetration 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 end 90b of the screw is the right end of the upper screw penetration 2e and the lower screw penetration 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 of the upper screw penetration portion 2e and the lower screw penetration portion 2f, that is, the center position in the left-right direction of the upper screw 9a and the lower screw 9b when the remote control 1 is fixed to the wall portion 6. Also, in Figure 4, for explanatory purposes, the left-right positions of the screw's left end 90a, the screw's right end 90b, and the center position 91c are shown by dotted lines.

[0034] A comparison of Figure 3 and Figure 7 shows that the mounting plate 2 undergoes deformation during installation. More specifically, the central part of the mounting plate 2 in the left-right direction deforms in such a way that it is pulled towards the opening 7. This deformation occurs during installation, especially when the mounting plate 2 is screwed to the switch box 8. More specifically, when the upper screw 9a and lower screw 9b are screwed in, stress is generated near the upper and lower screw holes of the mounting plate 2 from the front 2b side to the back 2a side. As a result, the part to the left of the left end 90a of the screw and the part to the right of the right end 90b of the screw deform away from the wall 6. In particular, significant deformation occurs when the mounting plate 2 is tightly screwed to the switch box 8.

[0035] As a result of this deformation, the first front end 120c, which is the front end of the first projection 12a, and the second front end 121c, which is the front end of the second projection 12b, deform to approach the front end 13a, which is the front end of the hole 13. The hole 13 is provided in the design cover 5 and fits into the projection 12. This is because the first projection 12a and the second projection 12b are provided on the outside of the opening 7 in the wall 6.

[0036] Furthermore, this deformation generates residual stress in the mounting plate 2. This is because the mounting plate 2 undergoes plastic deformation, causing bending from the front 2b to the back 2b. The residual stress is generated from the back 2a to the front 2b.

[0037] The deformation of the mounting plate 2 resulting from the pulling force of the upper screw 9a and lower screw 9b, as well as residual stress, may cause malfunctions in the remote control 1 due to deformation and cosmetic defects due to gaps between the remote control 1 and the wall 6. However, it is desirable to design the system to tolerate deformation to a degree that does not cause malfunctions or cosmetic defects. This is because minimizing the deformation of the mounting plate 2 would require using a highly rigid and expensive metal or a thick resin, which would increase costs.

[0038] With the configuration disclosed in Embodiment 1, the operator can sense the deformation of the first projection 12a and the second projection 12b on both the left and right sides. Furthermore, since the third projection 12c is provided in a location where deformation is less likely to occur, it is attracted to the opening 7 side of the wall 6, allowing the operator to sense the location of the less deformed portion. Therefore, with this configuration, the operator can sense the amount of lateral deformation of the mounting plate 2 that would otherwise prevent fitting.

[0039] According to the remote control 1 of Embodiment 1, deformation below the tolerance limit can be tolerated. Furthermore, this configuration eliminates the need to construct the mounting plate 2 from expensive metal or thick resin to suppress deformation, thus reducing costs.

[0040] Figure 8 is a cross-sectional view of the joint portion 100 perpendicular to the vertical direction of the remote control 1 according to Embodiment 1, and is a magnified view of the area around the first projection 12a. In other words, Figure 8 is a magnified view of the section A-A in Figure 1. Figure 9 is a cross-sectional view of the joint portion 100 perpendicular to the vertical direction, magnified of the area around the first projection 12a when the deformation of the mounting plate 2 of the remote control 1 according to Embodiment 1 is within the deformation tolerance. In other words, Figure 9 is a magnified view of the section A-A in Figure 1. The deformation tolerance is the maximum value that indicates the allowable deformation of the remote control according to Embodiment 1. The deformation tolerance is determined by the designer considering the installation conditions, etc. The behavior of the projection 12 will be explained using Figures 8 and 9.

[0041] As shown in Figure 8, when the deformation of the mounting plate 2 is less than or equal to the deformation tolerance, and the projection 12 and the hole 13 fit together, the first front end 120c of the first projection 12a of the mounting plate 2 does not come into contact with the front end 13a of the hole 13. In other words, there is a gap between the first front end 120c and the front end 13a of the hole.

[0042] Furthermore, as shown in Figure 9, when the deformation of the mounting plate 2 is within the deformation tolerance, the first front end 120c of the first projection 12a comes into contact with the front end 13a of the hole 13. If the deformation of the mounting plate 2 is greater than the deformation tolerance, it becomes impossible to fit the first projection 12a and the hole 13 together.

[0043] Furthermore, at the second projection 12b, if the deformation of the mounting plate 2 is less than or equal to the deformation tolerance, there is a gap between the second front end 121c and the front end 13a of the hole. Also, if the deformation of the mounting plate 2 is within the deformation tolerance, the second front end 121c and the front end 13a of the hole come into contact.

[0044] In Figures 8 and 9, the position of the first projection 12a when it is rectangular is indicated by a dotted line. By making the first projection 12a and the second projection 12b the shape shown in Embodiment 1, the width of the hole 13 of the design cover 5 can be designed to be smaller when the same amount of deformation is allowed, compared to when they are rectangular. If the first projection 12a is rectangular, even a small amount of deformation will cause the front end of the projection to come into contact with the front end of the hole 13a, making it impossible to fit the projection 12 and the hole 13 together, even in the case of Figure 8 where the amount of deformation of the mounting plate 2 is smaller than the deformation allowance. Furthermore, by adopting the configuration as in Embodiment 1, the degree of freedom in designing 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 protrusions 12 can be determined by the designer through simulation or experimentation based on the strength and allowable strain of the mounting plate 2, circuit board 3, or circuit cover 4. For example, if a large deformation tolerance is desired, 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 back surface 2a should be increased. Conversely, if a small deformation tolerance is desired, the inclination angle of the first front end 120c and the second front end 121c with respect to the back surface 2a should be decreased.

[0046] Figure 10 is a flowchart showing the procedure for the installation of the remote control 1 according to Embodiment 1. The procedure for the installation of the remote control 1 will be explained using Figure 10. The flowchart in Figure 10 starts after the manufacturing of each component, the switch box 8 is fixed to the opening 7 in the wall 6, and the connection cord 11 is attached. Steps S101 to S104 in Figure 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 the upper screws 9a and the lower screws 9b.

[0048] Step S102 is a procedure performed after step S101. In step S102, it is determined whether the projection 12 of the mounting plate 2 can be fitted into the hole 13. In other words, in step S102, it is determined whether the deformation that has occurred in the mounting plate 2 is below the allowable deformation limit.

[0049] If the projection 12 can be fitted into the hole 13 in step S102 (step S102, Yes), the construction work is completed.

[0050] Step S103 is performed when the projection 12 cannot be fitted into the hole 13 in step S102 (step S102, No). In step S103, it is determined whether there are any damaged parts in the remote control 1. This is because there is a possibility that the parts have been damaged due to deformation that exceeds the allowable deformation limit of the mounting plate 2.

[0051] Step S104 is performed if it is determined in step S103 that there is a damaged part (step S103, Yes). In step S104, the part that was 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. In other words, steps S101 to S104 are repeated until the amount of deformation of the mounting plate 2 is less than or equal to the deformation tolerance and the projection 12 can be fitted into the hole 13. If the projection 12 cannot be fitted into the hole 13 in step S102, it is because the amount of deformation of the mounting plate 2 is greater than the deformation tolerance. However, it is not necessary to re-tighten the upper screw 9a and lower screw 9b; it is sufficient to loosen the screws or take other appropriate measures.

[0053] As described above, the electrical equipment according to Embodiment 1 (corresponding to the remote control 1) has a mounting plate 2 having a back surface 2a that is in contact with the opening 7 of the wall 6, a front surface 2b which is the opposite side of the back surface 2a, and a connecting surface (corresponding to the top 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) for fixing the mounting plate 2 to the wall 6, a circuit board 3 provided between the front surface 2b and the back surface 2a, a decorative cover 5 having a cover surface (corresponding to the top 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 having a projection 12 that protrudes from the connecting surface or the cover surface, and a groove (corresponding to the hole 13) provided on the cover surface or the connecting surface that fits with the projection 12, the projection 12 is connected When viewed from a direction perpendicular to the surface, the end on the front 2b side (corresponding to the first front end 120c) is inclined from left to right towards the back 2a, and when viewed from the front 2b side in a direction perpendicular to the front 2b, the right end (corresponding to the first right end 120b) is provided to the right of the right end of the fixing member (corresponding to the screw right end 90b), which is a first projection 12a. When viewed from a direction perpendicular to the connecting surface, the end on the front 2b side (corresponding to the second front end 121c) is inclined from right to left towards the back 2a, and when viewed from the front 2b side in a direction perpendicular to the front 2b, the left end (corresponding to the second left end 121a) is provided to the left of the left end of the fixing member (corresponding to the screw left end 90a), which is a second projection 12b. With this configuration, the electrical equipment according to Embodiment 1 has the effect of allowing a certain amount of deformation of the electrical equipment due to the influence of the pulling force and residual stress of the fixing member that fixes the electrical equipment to the wall.

[0054] Furthermore, in the electrical equipment according to Embodiment 1 (corresponding to the remote control 1), as an additional configuration, the left end (corresponding to the first left end 120a) of the first projection 12a is positioned to the right of the right end (corresponding to the screw right end 90b) of the fixing member (corresponding to the screw 9) when viewed from the front 2b side in a direction perpendicular to the front 2b, and the right end (corresponding to the second right end 121b) of the second projection 12b is positioned to the left of the left end (corresponding to the screw left end 90a) of the fixing member when viewed from the front 2b side in a direction perpendicular to the front 2b. This additional configuration provides the electrical equipment according to Embodiment 1 with the effect that the operator can more accurately sense the deformation of the mounting plate in the left-right direction.

[0055] Furthermore, in the electrical device according to Embodiment 1 (corresponding to the remote control 1), as an additional configuration, the first projection 12a or the second projection 12b is trapezoidal in shape when viewed from the connecting surface side in a direction perpendicular to the connecting surface (corresponding to the upper surface 2h). This additional configuration has the effect that the first projection and the second projection of the electrical device according to Embodiment 1 can be easily manufactured.

[0056] Furthermore, in the electrical equipment according to Embodiment 1 (corresponding to the remote control 1), as an additional configuration, the fixing member (corresponding to the screw 9) generates stress from the front 2b to the back 2a. This additional configuration has the effect of allowing the worker to effectively sense the deformation of the mounting plate 2 due to stress.

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

[0058] Furthermore, the electrical equipment according to Embodiment 1 (corresponding to the remote control 1) has an additional configuration in which the projection 12 further has a third projection 12c, and the third projection 12c is provided between the first projection 12a and the second projection 12b in the left-right direction when viewed from the front 2b side in a direction perpendicular to the front 2b. This additional configuration provides the electrical equipment according to Embodiment 1 with the effect that the operator can more accurately sense the deformation of the mounting plate in the left-right direction.

[0059] Furthermore, in the electrical equipment according to Embodiment 1 (corresponding to the remote control 1), as an additional configuration, the fixing member (corresponding to the screw 9) is provided between the left end of the third projection 12c (corresponding to the third left end 124a) and the right end of the third projection 12c (corresponding to the third right end 124b) in the left-right direction when viewed from the front 2b side in a direction perpendicular to the front 2b. This additional configuration provides the electrical equipment according to Embodiment 1 with the effect that the third projection 12c can be provided on a portion of the mounting plate 2 where the amount of deformation is small in the left-right direction.

[0060] Furthermore, in the electrical equipment according to Embodiment 1 (corresponding to the remote control 1), as an additional configuration, the third projection 12c, when viewed from the front 2b side in a direction perpendicular to the front 2b, has a center position in the left-right direction that coincides with the center position 91c of the fixing member (corresponding to the screw 9) in the left-right direction. This additional configuration provides the electrical equipment according to Embodiment 1 with the effect that the third projection 12c can be provided on the part of the mounting plate 2 where the amount of deformation is least in the left-right direction.

[0061] Furthermore, in the electrical device according to Embodiment 1 (corresponding to the remote control 1), as an additional configuration, the third projection 12c, when viewed from the connecting surface side in a direction perpendicular to the connecting surface (corresponding to the upper surface 2h), has its right end (corresponding to the third right end 124b) positioned to the left of the left end of the first projection 12a (corresponding to the first left end 120a), and its left end (corresponding to the third left end 124a) positioned to the right of the right end of the second projection 12b (corresponding to the second right end 121b). This additional configuration has the effect of reducing the size of the projections in the electrical device according to Embodiment 1.

[0062] In Embodiment 1, the remote control is connected to the device via a wired connection cord, but this configuration is not limited to this. The remote control may be connected to the device wirelessly. In that case, it is not necessary to attach the connection cord to the switch box.

[0063] Furthermore, while Embodiment 1 involves screwing the mounting plate to the switch box, the configuration is not limited to this. The method of fixing is not limited as long as the remote control is fixed to the opening in the wall by a fixing member. For example, the remote control may be fixed to the opening in the wall using a stay pipe.

[0064] Furthermore, in Embodiment 1, the circuit board is fixed to the mounting plate, but this is not limited to this configuration. The circuit board may be fixed to, for example, the decorative cover. The circuit board can be located between the front and back of the mounting plate.

[0065] Furthermore, while Embodiment 1 has a configuration with a circuit cover, a configuration without a circuit cover is also possible.

[0066] Furthermore, in Embodiment 1, the protrusion was provided on the upper surface of the mounting plate, but this is not limited to that. The protrusion may also be provided on the bottom surface of the mounting plate. Alternatively, the protrusion may be present on both the top and bottom surfaces of the mounting plate. With such a configuration, even if only the upper part or only the lower part of the remote control is significantly deformed, the operator can still detect the deformation.

[0067] Furthermore, in Embodiment 1, the first and second protrusions are arranged symmetrically, but this is not limited to this configuration. The first and second protrusions may be configured to differ in position or size from their center. Depending on the position of the operating or display unit and the material of the remote control, the deformation may be greater on only the right or left side of the remote control. Therefore, by using such a configuration, it is possible to install protrusions that match the deformation tendency of the remote control.

[0068] Furthermore, while Embodiment 1 involved fitting the first projection, second projection, and third projection into a hole that penetrates the upper surface of the design cover, the configuration is not limited to this. A configuration with three holes corresponding to the first projection, second projection, and third projection may also be provided. Moreover, the configuration does not have to have a hole that penetrates the upper surface of the design cover. For example, the design cover may have a groove with a bottom on its upper surface.

[0069] Furthermore, in Embodiment 1, the first left end of the first projection is provided to the right of the right end of the opening in the wall, and the second right end of the second projection is provided to the right of the left end of the opening in the wall, but the configuration is not limited to this. The first projection only needs to have its first right end provided to the right of the right end of the opening in the wall. The second projection only needs to have its second left end provided to the left of the left end of the opening in the wall. If the projection 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, allowing the operator to sense the deformation of the remote control.

[0070] Furthermore, in Embodiment 1, the first and second protrusions are trapezoidal in shape when viewed from above, but are not limited to this. During construction, it is sufficient that the first front end and the second front end are inclined from left to right towards the back surface 2a. For example, the first and second protrusions may be parallelograms in shape when viewed from above, or they may be inclined ellipses. The first and second protrusions may have different shapes. Also, the shape of the rear ends of the first and second protrusions can be freely determined.

[0071] Furthermore, in Embodiment 1, the center position of the third projection coincides with the center positions of the upper and lower screw holes in the left-right direction, but this is not limited to this configuration. The left end of the third projection may be provided to the right of the left end of the opening, and the right end of the third projection may be provided to the left of the right end of the opening. This is because, in the left-right direction, the third projection is located between the openings in the wall, allowing the worker to sense the position of the mounting plate with minimal deformation.

[0072] Furthermore, in Embodiment 1, the third projection is rectangular in shape, but is not limited to this. The shape of the third projection can be freely determined by the designer. The area around where the third projection is provided is a place where deformation is unlikely to occur, so its shape is not particularly limited.

[0073] Furthermore, while Embodiment 1 has a configuration with three protrusions, it is not limited to this. It may also have a configuration without a third protrusion. This is because if it has a first protrusion and a second protrusion, the worker can sense the deformation of the mounting plate. It may also have a configuration with protrusions other than the first, second, and third protrusions disclosed in Embodiment 1.

[0074] A modified example of Embodiment 1. Next, a modified remote control 40 according to Embodiment 1 will be described. Compared to the remote control 1 according to Embodiment 1, the remote control 40 according to the modified remote control 1 according to Embodiment 1 differs in the position where the mounting plate 42 is screwed to the switch box 38. The configuration other than the switch box 38, mounting plate 42 and projection 52 is the same as that of the remote control 1 according to Embodiment 1, so the explanation will be omitted.

[0075] Figure 11 is a front view of the mounting plate 42 and projection 52 of the remote control 40 according to a modified example of Embodiment 1. Figure 12 is a front view of the switch box that fixes the mounting plate 38 of the remote control 40 according to a modified example of Embodiment 1. The configuration of the remote control 40 according to a modified example of Embodiment 1 will be described using Figures 11 and 12.

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

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

[0078] A lower screw hole 38c is formed on the lower surface of the switch box 38, into which a long lower screw 9b is screwed. 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 extending from the front to the back of the mounting plate.

[0080] As shown in Figure 11, the projection 52 protrudes upward from the upper surface 42h when viewed from the front-to-back direction, which is perpendicular to the front surface 2b. The projection 52 also comprises a first projection 52a, a second projection 52b, and a third projection 52c.

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

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

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

[0084] In the left-right direction, the portion between the left end of the upper left screw 95a and the lower left screw 96a and the right end of the upper right screw 95b and the lower right screw 96b is the portion that is attracted to the opening 7 of the wall 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 the third protrusion 52c in the portion that is attracted to the opening of the wall; therefore, the protrusions 52 are positioned as shown in this disclosure.

[0085] In the modified embodiment of Embodiment 1, the mounting plate 42 of the remote control 40 was fixed to the switch box by being screwed into two screw holes each at the top and bottom, but this is not limited to this configuration. The mounting plate may be screwed into three screw holes, or into five or more screw holes.

[0086] As described above, the modified electrical equipment (corresponding to the remote control 40) according to Embodiment 1 has a back surface 2a that is in contact with the opening 7 of the wall 6, a front surface 2b which is the opposite side of the back surface 2a, a mounting plate 42 having a connecting surface (corresponding to the upper surface 42h) 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) for fixing the mounting plate 42 to the wall 6, a circuit board 3 provided between the front surface 2b and the back surface 2a, a 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 42 and the decorative cover 5, the joint 100 having a projection 12 that protrudes from the connecting surface or the cover surface, and a groove (corresponding to the hole 13) provided on the cover surface or the connecting surface that fits into the projection 12, The starting portion 12 has a first projection 12a, in which, when viewed from a direction perpendicular to the connecting surface, the end on the front 2b side (corresponding to the first front end 120c) is inclined from left to right toward the rear 2a, and when viewed from the front 2b side in a direction perpendicular to the front 2b, the right end (first right end 120b) is provided to the right of the right end of the fixing member (corresponding to the screw right end 98b), and a second projection 12b, in which, when viewed from a direction perpendicular to the connecting surface, the end on the front 2b side (corresponding to the second front end 121c) is inclined from right to left toward the rear 2a, and when viewed from the front 2b side in a direction perpendicular to the front 2b, the left end (corresponding to the second left end 121b) is provided to the left of the left end of the fixing member (screw left end 98a). With this configuration, the electrical equipment according to the modified embodiment 1 has the same effects as described in embodiment 1.

[0087] Embodiment 2. The remote control 50 according to Embodiment 2 will now be described. Compared to Embodiment 1, the remote control 50 according to Embodiment 2 has a different front-to-back position of the projection 62. The configuration of the remote control 50 according to Embodiment 2, excluding the front-to-back position of the projection 62, is the same as that of Embodiment 1, so the explanation will be omitted.

[0088] Figure 13 is an enlarged top view of the right portion of the mounting plate 2 and projection 62 of the remote control 50 according to Embodiment 2. The configuration and effect of the projection 62 of the remote control 50 will be explained using Figure 13.

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

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

[0091] In the mounting plate 2 of the remote control 50 according to Embodiment 2, deformation occurs due to the installation work. More specifically, the central part of the mounting plate 2 in the left-right direction deforms so that it is pulled towards the opening 7. This deformation occurs during installation work, especially when the mounting plate 2 is screwed to the switch box 8. More specifically, when the upper screw 9a and lower screw 9b are screwed in, stress is generated from the front to the back near the upper and lower screw holes of the mounting plate 2, resulting in deformation where the part to the left of the left end 90a of the screw and the part to the right of the right end 90b of the screw move away from the wall 6. In particular, significant deformation occurs when the mounting plate 2 is tightly screwed to the switch box 8.

[0092] Furthermore, by installing the projection 62 as in Embodiment 2, it is possible to prevent gaps from forming between the design cover 5 and the wall portion 6. This is because, during construction, the third projection 62c, which is located in a position where the deformation of the mounting plate 2 is minimal, can be fixed in a location close to the wall portion 6.

[0093] As described above, the electrical equipment according to Embodiment 2 (corresponding to the remote control 50) has a mounting plate 2 having a back surface 2a that is in contact with the opening 7 of the wall 6, a front surface 2b which is the opposite side of the back surface 2a, and a connecting surface (corresponding to the top 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) for fixing the mounting plate 2 to the wall 6, a circuit board 3 provided between the front surface 2b and the back surface 2a, a decorative cover 5 having a cover surface (corresponding to the top surface 5h) that covers the connecting surface, and a joint 100 that joins the mounting plate 2 and the decorative cover 5, wherein the joint 100 has a projection 62 that protrudes from the connecting surface or the cover surface, and a groove (corresponding to the hole 13) provided on the cover surface or the connecting surface that fits with the projection 62, and the projection 62 is When viewed from a direction perpendicular to the connecting surface, the end on the front 2b side (first front end 120a) is inclined from left to right towards the rear 2a, and when viewed from the front 2b side in a direction perpendicular to the front 2b, the right end (corresponding to the first right end 120b) is provided to the right of the right end of the fixing member (corresponding to the screw right end 90b), which is a first projection 62a. When viewed from a direction perpendicular to the connecting surface, the end on the front 2b side (corresponding to the second front end 121c) is inclined from right to left towards the rear 2a, and when viewed from the front 2b side in a direction perpendicular to the front 2b, the left end (corresponding to the second left end 121a) is provided to the left of the left end of the fixing member (corresponding to the screw left end 90a), which is a second projection 62b. With this configuration, the electrical equipment according to Embodiment 2 has the same effects as those described in Embodiment 1.

[0094] Furthermore, in the electrical equipment according to Embodiment 2 (corresponding to the remote control 50), as an additional configuration, when viewed from the connecting surface side in a direction perpendicular to the connecting surface (corresponding to the upper surface 2h), the distance between the end of the third projection 62c on the rear surface 2a side (corresponding to the third rear end 124d) and the rear surface 2a is shorter than the distance between the end of the first projection 62a on the rear surface 2a side (corresponding to the first rear end 120d) and the rear surface 2a, and also shorter than the distance between the end of the second projection 62b on the rear surface 2a side (corresponding to the second rear end 122d) and the rear surface 2a. This additional configuration provides the electrical equipment according to Embodiment 2 with the effect of preventing the occurrence of a gap between the design cover 5 and the wall portion 6.

[0095] Embodiment 3. The remote control 80 according to Embodiment 3 will now be described. The remote control 80 according to Embodiment 3 differs from that according to Embodiments 1 and 2 in the configuration of the joint portion 200. The configuration of the remote control excluding the joint portion 200 is the same as that of Embodiments 1 and 2, so its description will be omitted.

[0096] Figure 14 is a rear view of the design cover 85 and projection 92 of the remote control 80 when the mounting plate 82 according to Embodiment 3 is not deformed. The configuration of the remote control 80 will be explained using Figure 14.

[0097] The joint portion 200 in the remote control 80 of Embodiment 3 has a projection 92 and a hole.

[0098] As shown in Figure 14, when the mounting plate 82 is not deformed, the projection 92 protrudes downward from the upper surface 85h of the design cover 85. The projection 92 also has a first projection 92a, a second projection 92b, and a third projection 92c. The shapes of the first projection 92a, the second projection 92b, and the third projection 92c are the same as in Embodiment 1 and Embodiment 2.

[0099] The upper surface of the mounting plate 82 has grooves for fitting with the first projection 92a, the second projection 92b, and the third projection 92c. This configuration allows for fitting with the projections 92 when the deformation of the mounting plate 82 is below the allowable deformation value.

[0100] As described above, the electrical equipment according to Embodiment 3 (corresponding to the remote control 80) has a rear surface 2a that is in contact with the opening 7 of the wall 6, a front surface 2b which is the opposite side of the rear surface 2a, a mounting plate 82 having a connecting surface (corresponding to the upper surface 2h) that connects the upper ends or lower ends of the rear surface 2a and the front surface 2b, a fixing member (corresponding to the screw 9) for fixing the mounting plate 82 to the wall 6, a circuit board 3 provided between the front surface 2b and the rear surface 2a, a decorative cover 85 having a cover surface (corresponding to the upper surface 85h) that covers the connecting surface, and a joint 100 that joins the mounting plate 82 and the decorative cover 85, wherein the joint 100 has a projection that protrudes from the connecting surface or the cover surface, and a groove (corresponding to the hole) provided on the cover surface or the connecting surface that fits with the projection 92, and the projection 92 is When viewed from a direction perpendicular to the connecting surface, the end on the front 2b side (corresponding to the first front end 120c) is inclined from left to right towards the rear 2a, and when viewed from the front 2b side in a direction perpendicular to the front 2b, the right end (corresponding to the first right end 120b) is provided to the right of the right end of the fixing member (corresponding to the screw right end 90b), which is a first projection 92a. When viewed from a direction perpendicular to the connecting surface, the end on the front 2b side (corresponding to the second front end 121c) is inclined from right to left towards the rear 2a, and when viewed from the front 2b side in a direction perpendicular to the front 2b, the left end (corresponding to the second left end 121a) is provided to the left of the left end of the fixing member (corresponding to the screw left end 90a), which is a second projection 92b. With this configuration, the remote control 80 according to Embodiment 3 has the same effects as those described in Embodiment 1.

[0101] In Embodiment 3, the design cover has only protrusions and the mounting plate has only holes that fit into the protrusions, but the invention is not limited to this configuration. The design cover and the mounting plate may each have one or more protrusions and holes. For example, the design cover may have a first protrusion, a second protrusion, a third protrusion, and holes that fit into them, and the mounting plate may have a third protrusion and holes that fit into the first and second protrusions.

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

[0103] The various aspects of this disclosure are summarized below as an appendix. (Note 1) A mounting plate having a back surface that is in contact with the opening in the wall, a front surface that is the opposite side of the back surface, and a connecting surface that connects the upper ends or lower ends of the back surface and the front surface, A fixing member for fixing the mounting plate to the wall, A circuit board provided between the front and the rear, A design cover having a cover surface that covers the aforementioned connecting surface, A joint that connects the mounting plate and the design cover, It has, The joint portion comprises a projection that protrudes from the connecting surface or the cover surface, and a groove provided on the cover surface or the connecting surface that fits into the projection. The aforementioned projection is When viewed from a direction perpendicular to the connecting surface, the front end is inclined from left to right toward the rear, and when viewed from the front side in a direction perpendicular to the front, the right end is a first projection provided to the right of the right end of the fixing member, When viewed from a direction perpendicular to the connecting surface, the front end is inclined from right to left toward the rear, and when viewed from the front side in a direction perpendicular to the front, the left end is provided to the left of the left end of the fixing member, and Electrical equipment having [a certain feature]. (Note 2) When viewed from the front side in a direction perpendicular to the front, the left end of the first projection is provided to the right of the right end of the fixing member. When viewed from the front side in a direction perpendicular to the front, the right end of the second projection is provided to the left of the left end of the fixing member. Electrical equipment as described in Appendix 1. (Note 3) The first or second projection is trapezoidal in shape when viewed from the connecting surface side in a direction perpendicular to the connecting surface. Electrical equipment as described in Appendix 1 or 2. (Note 4) The aforementioned fixing member generates stress from the front to the back. Electrical equipment as described in any one of the items 1-3 in the appendix. (Note 5) The aforementioned fixing member is a screw, The aforementioned wall portion is provided with screw holes corresponding to the screws. Electrical equipment as described in Appendix 4. (Note 6) The aforementioned projection further comprises a third projection, The third projection is provided between the first projection and the second projection in the left-right direction when viewed from the front side in a direction perpendicular to the front. Electrical equipment as described in any one of the items 1-5 in the appendix. (Note 7) The fixing member is provided between the left end and the right end of the third projection in the left-right direction when viewed from the front side in a direction perpendicular to the front. Electrical equipment as described in Appendix 6. (Note 8) When viewed from the front side in a direction perpendicular to the front, the center position of the third projection in the left-right direction coincides with the center position of the fixing member in the left-right direction. Electrical equipment as described in Appendix 6 or 7. (Note 9) When viewed from the connecting surface side in a direction perpendicular to the connecting surface, the right end of the third projection is provided to the left of the left end of the first projection, and the left end is provided to the right of the right end of the second projection. Electrical equipment as described in any one of the items in Appendix 6-8. (Note 10) When viewed from the connecting surface side in a direction perpendicular to the connecting surface, the distance between the rear end of the third projection and the rear surface is shorter than the distance between the rear end of the first projection and the rear surface, and shorter than the distance between the rear end of the second projection and the rear surface. The electrical equipment according to any one of claims 6-9. [Explanation of Symbols]

[0104] 1 Remote control, 2 Mounting plate, 2a Rear, 2b Front, 2c Right side, 2d Left side, 2e Upper screw hole, 2f Lower screw hole, 2g Bottom, 2h Top, 3 Circuit board, 4 Circuit cover, 5 Decorative cover, 5a Rear, 5b Front, 5c Right side, 5d Left side, 5g Bottom, 5h Top, 6 Wall section, 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 Front end of hole, 20 Display section, 30 Operation section, 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 through part, 42b Upper right screw through part, 42c Lower left screw through part, 42d Lower right screw through part, 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 Decorative 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. A mounting plate having a back surface that is in contact with the opening in the wall, a front surface that is the opposite side of the back surface, and a connecting surface that connects the upper ends or lower ends of the back surface and the front surface, A fixing member for fixing the mounting plate to the wall, A circuit board provided between the front and the rear, A design cover having a cover surface that covers the aforementioned connecting surface, A joint that connects the mounting plate and the design cover, It has, The joint portion comprises a projection that protrudes from the connecting surface or the cover surface, and a groove provided on the cover surface or the connecting surface that fits into the projection. The aforementioned projection is When viewed from a direction perpendicular to the connecting surface, the front end is inclined from left to right toward the rear, and when viewed from the front side in a direction perpendicular to the front, the right end is a first projection provided to the right of the right end of the fixing member, When viewed from a direction perpendicular to the connecting surface, the front end is inclined from right to left toward the rear, and when viewed from the front side in a direction perpendicular to the front, the left end is provided to the left of the left end of the fixing member, and When viewed from the front side in a direction perpendicular to the front, a third projection is provided between the first projection and the second projection in the left-right direction, Electrical equipment having [a certain feature].

2. When viewed from the front side in a direction perpendicular to the front, the left end of the first projection is provided to the right of the right end of the fixing member. The electrical device according to claim 1, wherein, when viewed from the front side in a direction perpendicular to the front, the right end of the second projection is provided to the left of the left end of the fixing member.

3. The first or second projection is trapezoidal in shape when viewed from the connecting surface side in a direction perpendicular to the connecting surface. The electrical equipment according to claim 1.

4. The aforementioned fixing member generates stress from the front to the back. The electrical equipment according to claim 1.

5. The aforementioned fixing member is a screw, The aforementioned wall portion is provided with screw holes corresponding to the screws. The electrical equipment according to claim 4.

6. The fixing member is provided between the left end and the right end of the third projection in the left-right direction when viewed from the front side in a direction perpendicular to the front. The electrical equipment according to claim 1.

7. When viewed from the front side in a direction perpendicular to the front, the center position of the third projection in the left-right direction coincides with the center position of the fixing member in the left-right direction. The electrical equipment according to claim 1.

8. When viewed from the connecting surface side in a direction perpendicular to the connecting surface, the right end of the third projection is provided to the left of the left end of the first projection, and the left end is provided to the right of the right end of the second projection. The electrical equipment according to claim 1.

9. When viewed from the connecting surface side in a direction perpendicular to the connecting surface, the distance between the rear end of the third projection and the rear surface is shorter than the distance between the rear end of the first projection and the rear surface, and shorter than the distance between the rear end of the second projection and the rear surface. The electrical equipment according to claim 1.

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