JP2019186115A - Electric device - Google Patents

Abstract

To prevent unintended false detection of a switch due to a close operation of a lid body.SOLUTION: An electric device (rice cooker 10) includes a main body 14, a lid body 25 rotatably attached to the main body 14, an operation panel 57 having a plurality of operation buttons 58, an operation substrate 62 having a switch element 63 corresponding to the operation button 58, and a spacer unit 67 having a spacer 71 that conveys an operational force of the operation button 58 to the switch elements 63. Between predetermined adjacent spacers 71 of the spacer unit 67, first convex portions 81a to 81c abutting on the operation substrate 62 and second convex portions 82a to 82c abutting on the operation panel 57 are provided.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an electrical device.

  There is known an electric device including a main body, a lid body rotatably attached to the main body, and an operation panel for executing a predetermined process. In this electrical apparatus, a circuit board is disposed inside the operation panel, and a spacer unit is further disposed between them.

  Patent Document 1 discloses an electric device in which the same spacer unit is arranged in models having different numbers of necessary switches. The spacer unit includes a plurality of spacers corresponding to the model having the largest number of switches. When a spacer unit is mounted on a model having a small number of switches, dummy parts are arranged on the circuit board instead of the switch elements. Thereby, when the part corresponding to the non-use spacer of the operation panel is pushed, the operation panel is prevented from being bent, and erroneous operation of the switch element due to the movement of the nearby spacer is prevented.

JP 2002-358851 A

  In the electric device of Patent Document 1, since it is necessary to dispose dummy parts on the control board, the cost increases. Moreover, the operation panel is provided in the main body, and nothing is taken into consideration for preventing erroneous detection when closing the lid with respect to the main body.

  It is an object of the present invention to provide an electric device that can prevent unintentional erroneous detection of a switch accompanying a lid closing operation.

  One aspect of the present invention includes a main body, a lid body rotatably attached to the main body, a plurality of operation buttons, an operation panel provided on the opposite side of the rotation axis of the lid body, A plurality of switch elements respectively corresponding to the plurality of operation buttons; a circuit board disposed inside the operation panel; and a plurality of spacers for transmitting operation forces of the plurality of operation buttons to the plurality of switch elements, respectively. A spacer unit disposed between the operation panel and the circuit board, and between the predetermined spacers adjacent to the spacer unit, a first convex part that contacts the circuit board, and Provided is an electric device provided with a second convex portion that comes into contact with an operation panel.

  Here, the first convex part abuts on the circuit board and the second convex part abuts on the operation panel means that the operation panel is in contact with no external force applied and the external force is applied. Both touching configurations are included. In the latter case, the total gap between the first protrusion and the circuit board, and between the second protrusion and the operation panel is made smaller than the operation stroke of the switch element.

  When closing the lid with respect to the main body, the user often pushes the distal end side of the lid, that is, the side opposite to the rotation axis of the lid on which the operation panel is provided. In other words, erroneous switch detection is likely to occur. However, according to this aspect, the 1st convex part contact | abutted to a circuit board and the 2nd convex part contact | abutted to an operation panel are provided between the adjacent predetermined spacers. Therefore, even if the user presses between the operation buttons, the first convex portion and the second convex portion are brought into contact with the circuit board and the operation panel, thereby preventing the switch element from being turned on. As a result, erroneous detection of an unintended switch can be prevented. Moreover, since it is not necessary to arrange dummy parts on the circuit board, an increase in manufacturing cost can be suppressed.

  The spacer unit includes a base portion extending in the same direction as the axis of the rotation shaft, and the plurality of spacers are respectively connected to elastically deformable elastic pieces protruding from the base portion, and the first convex portion The second convex portion protrudes from the base portion. Here, extending in the same direction includes not only a configuration extending in parallel but also a configuration in which the base portion is slightly inclined with respect to the axis of the rotating shaft. According to this aspect, the first convex portion and the second convex portion provided on the base portion do not affect the operation of the spacer, so that the operation force of the operation button can be reliably transmitted to the switch element during normal use.

  The first convex portion and the second convex portion are arranged on the same straight line. According to this aspect, since the base portion does not bend through the second convex portion due to the pressing of the operation panel, it is possible to effectively prevent an erroneous detection of an unintended switch.

  The plurality of spacers include a first spacer group disposed on a side of the base opposite to the rotation shaft, and a second spacer group disposed on the rotation shaft side of the base, and the second convex portion. Is between the two adjacent spacers of the first spacer group and the one spacer of the second spacer group facing each other, or the two adjacent the spacers of the second spacer group. It is provided between the spacer and one of the spacers of the first spacer group facing each other. According to this aspect, it is possible to reliably prevent erroneous switch detection while reducing the number of second convex portions formed in the spacer unit.

  In the electric device according to the present invention, the first convex portion that contacts the circuit board and the second convex portion that contacts the operation panel are provided between the predetermined spacers. False detection can be prevented. Moreover, since it is not necessary to arrange dummy parts on the circuit board, it is possible to suppress an increase in the manufacturing cost of the electric equipment.

The perspective view which shows the electric equipment which concerns on embodiment of this invention. The perspective view of the electric equipment which opened the cover body. The exploded perspective view of a lid. Sectional drawing of the operation panel part of a cover body. The perspective view of the part which arrange | positions a circuit board and a liquid crystal display device. The top view which shows the relationship between a circuit board, a spacer unit, and a liquid crystal display device. The perspective view of a circuit board and a spacer unit. The lower perspective view of a spacer unit.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG.1 and FIG.2 shows the rice cooker 10 which is an example of the electric equipment which concerns on embodiment of this invention. The rice cooker 10 includes a rice cooker body 14 in which the rice cooking pan 12 is detachably disposed, and a lid 25 attached to the rice cooker body 14 so as to be opened and closed. The lid 25 is provided with an operation unit 55 for operating the rice cooker 10, and in this embodiment, a portion other than the operation button 58 in the operation unit 55, that is, an unintended error due to the operation panel 57 being pressed. Effectively prevent detection.

(Outline of rice cooker)
As shown in FIGS. 1 and 2, the rice cooker main body 14 includes a main body exterior body 15 having an upper end opened, and a shoulder body 16 that closes the opening of the main body exterior body 15. On the back of the shoulder body 16, a hinge connection portion 17 is provided for attaching the lid body 25 in a rotatable manner. A carrying handle 18 is rotatably attached to the side of the shoulder body 16.

  The rice cooker main body 14 includes an accommodating portion 19 that accommodates the bottomed cylindrical rice cooking pot 12. The accommodating part 19 is a bottomed cylindrical shape including a metal inner cylinder 20 formed in a cylindrical shape and a protective frame 21 made of a resin (non-conductive material) formed in a saucer shape. It is arranged at the bottom of the opening. A coil (not shown) for inductively heating the rice cooking pot 12 is disposed outside the protective frame 21. The process which cooks the cooked rice in the rice cooking pot 12 is performed because the control part which is not shown in figure controls the electrical component containing a coil.

  As shown in FIGS. 2 and 3, the lid body 25 includes a lid body 26 having a planar view shape that covers the upper surface of the shoulder body 16, and a lid exterior body 30 that covers the upper portion of the lid body 26.

  A rotation shaft 27 is attached to the back of the lid body 26, and the rotation shaft 27 is rotatably attached to the hinge connection portion 17. The lid body 26 is provided with an inner lid 28 that closes the upper end opening of the rice cooking pan 12 so as to be positioned on the inner side facing the rice cooking pan 12. The inner lid 28 may be detachably disposed with respect to the lid body 25 or may be unremovably disposed.

  As shown in FIG. 3, the lid exterior body 30 includes a base member 31 having a lower end opening disposed so as to cover the lid body 26. On the outer periphery of the base member 31, a pair of side panels 33, one front panel 34, and one back panel 35 are arranged as decorative panels. A top panel 36 is disposed on the outer surface of the top wall 32 that covers the outer periphery of the base member 31.

  The top panel 36 is provided with a first exposure hole 37 on the back side where the rotary shaft 27 is located, and a second exposure hole 38 on the side opposite to the rotary shaft 27 (the tip side of the lid body 25). ing. In the first exposure hole 37, an exhaust portion 39 of an exhaust passage for discharging the steam in the rice cooker 12 to the outside is disposed. An opening operation member 40 for opening the lid body 25 is disposed in the second exposure hole 38. By operating the opening operation member 40 downward in FIG. 1, the lock claw 42 shown in FIG. 2 rotates in a direction to detach from the lock hole 43 of the rice cooker body 14, and the lid body 25 is applied by the biasing force of a hinge spring (not shown). Opens to the rice cooker body 14. The lock member 41 shown in FIG. 3 in which the lock claw 42 is formed is biased by a spring in a direction in which the lock claw 42 is engaged with the lock hole 43.

  A display unit 50 and an operation unit 55 are provided between the exposure holes 37 and 38 of the top panel 36.

  As shown in FIGS. 3 and 4, the display unit 50 includes a window 51 formed in the top panel 36 and a liquid crystal display device 52 disposed inside the window 51. The window 51 can see through the display of the liquid crystal display device 52, and is provided in the vicinity of the exhaust unit 39 so as to be positioned approximately at the center of the lid body 25. The liquid crystal display device 52 is controlled by the control unit, and displays the operation state of the rice cooker 10 and the operation state of the operation unit 55.

  The operation unit 55 is disposed between an operation panel 57 constituted by a part of the top panel 36, an operation board (circuit board) 62 disposed inside the operation panel 57, and between the operation panel 57 and the operation board 62. The spacer unit 67 is provided. The operation unit 55 is provided in the vicinity of the opening operation member 40 so as to be positioned on the distal end side of the lid body 25. A plurality of operation buttons 58 are provided on the operation panel 57. Referring to FIG. 7, a plurality of switch elements 63 respectively corresponding to the plurality of operation buttons 58 are arranged on the operation board 62. The spacer unit 67 has a plurality of spacers 71 positioned between the plurality of operation buttons 58 and the plurality of switch elements 63, respectively.

  When closing the opened lid 25, the user puts his hand on the top panel 36 and pushes the lid 25 downward against the biasing force of the hinge spring. When the lock claw 42 is locked in the lock hole 43, it is necessary to apply a larger force to rotate the lock member 41 against the biasing force of the spring.

  At this time, since the operation button 58 is disposed on the distal end side of the lid body 25, the user's finger is positioned in the vicinity of the operation button 58. Even if the finger does not touch the operation button 58, if the operation panel 57 is bent by the closing operation force of the user, the nearby spacer 71 moves toward the operation board 62, and the corresponding switch element 63 is turned on. is there. The present invention prevents such erroneous detection in the operation unit 55.

(Details of the operation unit)
As shown in FIGS. 3 and 4, the operation unit 55 includes the operation panel 57, the operation substrate 62, and the spacer unit 67 described above. In the top wall 32 of the base member 31, a recess 45 is formed in a portion corresponding to the display unit 50 and the operation unit 55.

  As shown in FIGS. 3 to 5, the recess 45 is provided for disposing the liquid crystal display device 52 including the attachment member 53, the operation substrate 62, and the spacer unit 67. An insertion hole 46 is provided at the bottom of the recess 45, and the liquid crystal display device 52 and the operation board 62 are electrically connected to the control unit (control board) by a cable (not shown) routed through the insertion hole 46. It is connected.

  The top wall 32 of the base member 31 is provided with a fitting groove 47 so as to surround the recess 45. Referring to FIG. 4, the operation panel 57 is provided with a fitting protrusion 59 disposed in the fitting groove 47. A space between the fitting groove 47 and the fitting protrusion 59 is sealed in a liquid-tight and air-tight manner by a sealing member. Note that reference numeral 48 in FIG. 5 denotes a desiccant arrangement portion that adsorbs the moisture of the air in the recess 45 and the moisture contained in the operation substrate 62.

  As shown in FIG. 4, the operation button 58 of the operation panel 57 has a configuration in which the outside of the through hole 60 in which the spacer 71 is disposed is covered with a flexible film member 61. Referring to FIG. 3, the plurality of operation buttons 58 include a rice cooking button 58 a for starting the rice cooking process, a heat retaining button 58 b for starting the heat retaining process, and a barge button 58 c for ending the rice cooking process and the heat retaining process. The plurality of operation buttons 58 include a menu button 58d for changing the rice cooking menu, a non-washing rice button 58e for selecting that the rice is non-washing rice, a current time and a rice cooking reservation time displayed on the liquid crystal display device 52. An up button 58f and a down button 58g for changing the menu, and a reservation button 58h for selecting a reserved rice cooker are included.

  Since the up button 58f and the down button 58g are a set, they are constituted by a right side portion and a left side portion of one through hole 60. The other buttons 58a to 58e, 58h, 58i are each configured by one through hole 60. Of these, the three operation buttons 58a to 58c have a high operation frequency, and are arranged on the front end side of the lid 25 in consideration of user operability. Further, the operation buttons 58 a to 58 c are arranged in three through holes 60 provided at equal intervals along the axis A of the rotation shaft 27. Since the operation buttons 58d to 58h are used less frequently, the operation buttons 58d to 58h are arranged on the back side of the operation buttons 58a to 58c. Further, the operation buttons 58d to 58h are arranged in four through holes 60 provided at equal intervals along the axis A of the rotation shaft 27, with the up button 58f and the down button 58g as one set.

  As shown in FIGS. 6 and 7, the operation board 62 includes a first portion 62 a located below the operation portion 55 and a pair of second portions 62 b located on both sides of the attachment member 53 (display portion 50). Prepare. In the first portion 62, switch elements 63a to 63h are respectively arranged so as to be located immediately below the operation buttons 58a to 58h. As the switch elements 63a to 63h, for example, a normally open tact switch that turns on the contact when the upward projecting receiving portion is moved downward with a predetermined operation stroke can be used.

  A positioning hole 64 a for positioning the spacer unit 67 and a positioning hole 64 b for positioning the attachment member 53 are formed in the operation board 62. These positioning holes 64 a and 64 b penetrate in a circular shape from the upper surface to the lower surface of the operation substrate 62. The operation board 62 is provided with a locking hole 65a for locking the spacer unit 67 and a locking hole 65b for locking the attachment member 53. These locking holes 65 a and 65 b penetrate in a quadrangular shape from the upper surface to the lower surface of the operation substrate 62.

  As shown in FIGS. 6 to 8, the spacer unit 67 includes a base 68 extending in the same direction as the axis A of the rotating shaft 27, and spacers 71a to 71h having the same number as the operation buttons 58a to 58h. This is a resin molded product having an integral structure by 76.

  The base 68 is disposed at an intermediate portion between the operation panel 57 and the operation board 62 so as to be spaced apart from each other (see FIG. 4). The base portion 68 of the present embodiment is disposed in parallel to the axis A of the rotating shaft 27, but may be disposed slightly inclined. On both sides of the base portion 68, side portions 69 that protrude in a direction intersecting with the rotation shaft 27 and are positioned in parallel with the operation substrate 62 are provided. Further, a protruding portion that protrudes in a direction intersecting with the axis A of the rotating shaft 27 and extends along the operation board 62 is formed at an intermediate portion of the base portion 68 so as to be positioned between the spacers 71e and 71f and between 71b and 71c. 70 are provided.

  The spacers 71a to 71h are respectively disposed between the operation buttons 58a to 58h and the switch elements 63a to 63h, and transmit the operation force of the operation buttons 58a to 58h to the switch elements 63a to 63h, respectively. The spacers 71a to 71h include a bottom plate 72 having substantially the same shape as the operation buttons 58a to 58h, and the switch elements 63a to 63h are turned on by the bottom plate 72.

  The bottom plate 72 is provided with a frame plate 73 projecting upward from the outer periphery and an intermediate plate 74 projecting upward so as to form a + shape in plan view, and the upper part thereof is in the through hole 60 of the operation panel 57. Has been placed. The bottom plate 72 of the spacers 71a to 71c is formed with a regulating plate 75 that protrudes downward so as to form an arc shape. The restriction plate 75 is provided in order to prevent the switch elements 63a to 63c from being damaged due to excessive movement of the spacers 71a to 71c by contacting the operation board 62.

  The elastic pieces 76 of the spacers 71a to 71c protrude forward from the base 68, and the elastic pieces 76 of the spacers 71d to 71h protrude rearward from the base 68. The elastic piece 76 is formed with a thickness that is thinner than the base 68 and elastically deformable so as to allow the spacers 71a to 71h to move in the vertical direction. Two elastic pieces 76 are provided for each of the spacers 71a to 71h.

  The base portion 68 is provided with a cylindrical portion 77 for disposing LEDs (not shown) disposed on the operation board 62 so as to be adjacent to the spacers 71a, 71b, 71h of the rice cooking button 58a, the heat retaining button 58b, and the reservation button 58h. It has been. The cylindrical portions 77 of the spacers 71a and 71b are formed so as to bulge from the base portion 68, and are located on the attachment member 53 side of the spacers 71a and 71b. The cylindrical portion 77 of the spacer 71h is formed at the tip of an arm 78 protruding so as to form an L shape in plan view, and is located on the attachment member 53 side of the spacer 71h.

  As shown most clearly in FIG. 8, the base 68 is provided with a cylindrical positioning projection 79 inserted into the positioning hole 64a and a locking projection 80 that locks into the locking hole 65a. These protrude downwardly toward the operation board 62.

  A plurality of first convex portions 81 that are in contact with the upper surface of the operation substrate 62 protrude downward from a predetermined position of the base portion 68 and the distal ends of the side portion 69 and the protruding portion 70. As shown in FIGS. 6 and 7, at the center of the base portion 68, three second convex portions 82 a to 82 c that abut against the lower surface of the operation panel 57 protrude upward. Among the plurality of first protrusions 81, the three one protrusions 81a to 81c positioned at the center of the base 68 are arranged vertically so as to be positioned on the same straight line with respect to the second protrusions 82a to 82c. Has been.

  When the first convex portions 81a to 81c abut on the operation board 62 and the second convex portions 82a to 82c abut on the operation panel 57, the first convex portions 81a to 81c abut on the operation panel 57 in a state where no external force (downward force) is applied. And a configuration that abuts when an external force is applied. In the latter case, the total gap between the first convex portion 81a and the operation board 62, the second convex portion 82a and the operation panel 57, the first convex portion 81b and the operation substrate 62, and the second convex portion. The total gap between 82b and the operation panel 57, and the total gap between the first protrusion 81c and the operation board 62, and between the second protrusion 82c and the operation panel 57 are respectively the switch elements 63a. It is set smaller than the operation stroke of ~ 63h.

  As shown most clearly in FIG. 6, the first convex portions 81 a to 81 c and the second convex portions 82 a to 82 c are provided so as to be positioned between adjacent predetermined spacers 71. More specifically, the plurality of spacers 71 are largely divided into first spacers 71 a to 71 c group located on the front end side of the lid body 25 and second spacers 71 d to 71 h group located on the back side of the lid body 25. Separated. The convex portions 81a and 82a are provided so as to be positioned between the spacers 71b and 71c of the first spacer group and the spacer 71e of the second spacer group facing therebetween. The convex portions 81b and 82b are provided so as to be positioned between the spacers 71e and 71f of the second spacer group and the spacer 71b of the first spacer group facing each other. The convex portions 81c and 82c are provided so as to be positioned between the spacers 71a and 71b of the first spacer group and the spacer 71g of the second spacer group opposed therebetween. In addition, as for one spacer facing two adjacent spacers, a part in the extending direction of the base 68 may overlap with a part of the two spacers.

  When the first convex portions 81a to 81c and the second convex portions 82a to 82c are not provided, when a downward force is applied to the operation panel 57 as described above, the concave portion 45 (space) is formed inside. The operation panel 57 can be bent downward. And in the operation panel 57, the amount of bending of the center part in the direction where the axis A of the rotating shaft 27 extends becomes the largest.

  However, in the present embodiment, the first convex portions 81 a to 81 c that contact the operation substrate 62 and the second convex portions 82 a to 82 c that contact the operation panel 57 are provided in the central portion of the spacer unit 67. Therefore, even if the user presses between the operation buttons 58a and 58b or between 58b and 58c, the second protrusions 82a to 82c abut on the operation panel 57 and the first protrusions 81a to 81c abut on the operation board 62. The bending of the operation panel 57 is prevented. As a result, it is possible to prevent an unintentional erroneous detection that any of the spacers 71a to 71h is moved by the bending of the operation panel 57 and the corresponding switch elements 63a to 63h are turned on.

  Since it is not necessary to arrange dummy parts on the operation board 62, an increase in the manufacturing cost of the rice cooker 10 can be suppressed. Since the plurality of spacers 71a to 71h are integrally formed with the base 68 by the elastic piece 76, the assembly workability at the time of manufacture can be improved. Moreover, since the 1st convex part 81a-81c and the 2nd convex part 82a-82c are provided in the base 68 spaced apart from the spacers 71a-71h, the 1st convex part 81a-81c and the 2nd convex part 82a-82c. Can be prevented from affecting the operation of the spacers 71a to 71h. Therefore, the operating force of the operation button 58 can be reliably transmitted to the switch element 63 during normal use.

  Since the first convex portions 81 a to 81 c and the second convex portions 82 a to 82 c are formed on the same straight line, the base 68 is bent by the pressing of the operation panel 57 via the second convex portions 82 a to 82 c. Absent. Therefore, erroneous detection of an unintended switch due to pressing of the operation panel 57 can be effectively prevented. In addition, since the second protrusions 82a to 82c are provided between the three spacers 71, the number of the second protrusions 82a to 82c formed in the spacer unit 67 is reduced, and erroneous switch detection is ensured. Can be prevented.

  In addition, the electric equipment (rice cooker 10) of this invention is not limited to the structure of the said embodiment, A various change is possible.

  For example, the second convex portion may be provided between all adjacent spacers, or the first convex portion may be provided between all adjacent spacers. The first convex portion and the second convex portion may protrude from different positions of the base in the direction in which the axis of the rotation axis extends.

  Although the rice cooker 10 has been described as an example in the above embodiment, the structure of the present invention in which the first convex portion and the second convex portion are provided in the spacer unit is a main body and a lid body rotatably attached to the main body. Can be applied, and similar operations and effects can be obtained.

10 ... Rice cooker (electric equipment)
12 ... Rice cooker 14 ... Main body of rice cooker (main body)
DESCRIPTION OF SYMBOLS 15 ... Main body exterior body 16 ... Shoulder body 17 ... Hinge connection part 18 ... Handle 19 ... Accommodating part 20 ... Inner cylinder 21 ... Protection frame 25 ... Cover body 26 ... Cover body 27 ... Rotating shaft 28 ... Inner cover 30 ... Cover exterior body DESCRIPTION OF SYMBOLS 31 ... Base member 32 ... Top wall 33 ... Side panel 34 ... Front panel 35 ... Back panel 36 ... Top panel 37 ... Exposed hole 38 ... Exposed hole 39 ... Exhaust part 40 ... Opening operation member 41 ... Lock member 42 ... Lock claw DESCRIPTION OF SYMBOLS 43 ... Lock hole 45 ... Concave 46 ... Insertion hole 47 ... Fitting groove 48 ... Arrangement part 50 ... Display part 51 ... Window 52 ... Liquid crystal display device 53 ... Mounting member 55 ... Operation part 57 ... Operation panel 58, 58a-58h ... Operation button 59 ... fitting protrusion 60 ... through hole 61 ... membrane member 62 ... operation board (circuit board)
62a ... 1st part 62b ... 2nd part 63, 63a-63h ... Switch element 64a, 64b ... Positioning hole 65a, 65b ... Locking hole 67 ... Spacer unit 68 ... Base part 69 ... Side part 70 ... Projection part 71, 71a- 71h ... Spacers 71a-71c ... First spacer group 71d-71h ... Second spacer group 72 ... Bottom plate 73 ... Frame plate 74 ... Medium plate 75 ... Regulating plate 76 ... Elastic piece 77 ... Cylinder portion 78 ... Arm 79 ... Positioning projection 80: Locking projections 81, 81a to 81c ... First convex portion 82a-82c ... Second convex portion

Claims (4)

The body,
A lid rotatably attached to the body;
An operation panel having a plurality of operation buttons and provided on the opposite side of the rotation axis of the lid,
A plurality of switch elements respectively corresponding to the plurality of operation buttons, and a circuit board disposed inside the operation panel;
A plurality of spacers for transmitting the operation forces of the plurality of operation buttons to the plurality of switch elements, respectively, and a spacer unit disposed between the operation panel and the circuit board,
Between the predetermined spacers adjacent to the spacer unit, an electric device is provided with a first convex portion that contacts the circuit board and a second convex portion that contacts the operation panel. The spacer unit includes a base that extends in the same direction as the axis of the rotating shaft,
The plurality of spacers are respectively connected to elastically deformable elastic pieces protruding from the base,
The electrical device according to claim 1, wherein the first convex portion and the second convex portion protrude from the base portion.   The electrical device according to claim 1, wherein the first convex portion and the second convex portion are arranged on the same straight line. The plurality of spacers include a first spacer group disposed on the side of the base opposite to the rotating shaft, and a second spacer group disposed on the rotating shaft side of the base.
The second convex portion is formed between two adjacent spacers of the first spacer group and one spacer of the second spacer group opposed therebetween, or adjacent to the second spacer group. The electric device according to claim 2, wherein the electric device is provided between the two spacers and the one spacer of the first spacer group opposed therebetween.

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