Control panel

Abstract

A control panel (1) according to an embodiment comprises: a housing (2); a unit (10) placed on a base panel (3) inside the housing; a caster (19) that is provided to a bottom section (10d) of the unit and is able to travel on the base panel; an upper section fixing panel (17) that fixes a depth-side upper end (10fu) of the unit when storing the unit; a guiding groove (32) that regulates movements of the caster so that the unit is lowered as far as a fixing position toward the depth side when storing the unit; and a unit fixing part (14) that fixes a depth-side lower end (10fd) of the unit when the entirety of the lower surface of the unit comes into contact with the base panel. As a result, there is provided a control panel with which fixing performance of a unit to a housing is improved, damage to components inside the unit or to connected conductors and cables can be prevented, and ease and workability for taking the unit in and out of the housing can be improved.

Description

Control panel

[0001] FIELD OF THE INVENTION An embodiment of the present invention relates to a control panel.

[0002] For example, a control panel of a power conversion device has many control boards and electrical appliances (products). These boards and appliances are stored in a housing. The boards and appliances are configured as units. The units are configured so that they can be pulled out from inside the housing. An example of such a device is described in Patent Document 1.

[0003] However, in some power conversion devices, the rear of the unit is not secured inside the housing with bolts. If the unit is not secured properly to the housing, vibrations that occur during transportation or operation of the device can damage the components inside the unit, or the conductors and cables connected to the unit.

[0004] Furthermore, the circuit boards and accessories are heavy. For this reason, the unit is fixed to the housing. There is potential for improvement in ease and workability when inserting and removing the unit into and from the housing. At the same time, there is potential for reduction in the work time required for inserting and removing the unit into and from the housing.

[0005] The present invention has been made in consideration of the above circumstances, and aims to achieve the objectives of improving the fixation of the unit to the housing, improving ease of attaching the unit to the housing, improving workability, shortening work time, and providing a configuration that accommodates flexible equipment placement.

[0006] JP 2010-183711 A

[0007] The problem that the present invention aims to solve is to provide a control panel that improves the fixation of the unit to the housing, prevents damage to the parts inside the unit, and the conductors and cables connected to the unit, and improves the ease and workability of inserting and removing the unit from the housing.

[0008] A control panel according to an embodiment includes a housing, a unit, casters, an upper fixing panel, a guide groove, and a unit fixing portion. The unit is placed on a base panel within the housing. The casters are provided on the bottom of the unit and are capable of running on the base panel. The upper fixing panel fixes the rear upper end of the unit when the unit is stored. The guide groove restricts movement of the casters so that the unit descends toward the rear to a fixed position when the unit is stored. The unit fixing portion fixes the rear lower end of the unit when the entire lower surface of the unit contacts the base panel.

[0009] 1 is a front view of a control panel according to an embodiment; a side view showing a state in which units are stored in a housing in the control panel according to an embodiment; a perspective view showing units and a base panel before storage in the control panel according to an embodiment; a side view showing dimensions of units in the control panel according to an embodiment; a side view showing dimensions of the housing in the control panel according to an embodiment; a side view showing dimensions of an upper fixing panel and units in the control panel according to an embodiment; a side view showing dimensions of the housing and units in the control panel according to an embodiment; a side process view showing a method of storing units in a housing in the control panel according to an embodiment; a side process view showing a method of storing units in a housing in the control panel according to an embodiment; a side process view showing a method of storing units in a housing in the control panel according to an embodiment; a side process view showing a method of storing units in a housing in the control panel according to an embodiment; a side process view showing a method of storing units in a housing in the control panel according to an embodiment; a side process view showing a method of storing units in a housing in the control panel according to an embodiment.

[0010] A control panel according to an embodiment will be described below with reference to the drawings. FIG. 1 is a front view of a control panel according to an embodiment. In the drawing, reference numeral 1 denotes the control panel. Hereinafter, the X-axis, Y-axis, and Z-axis directions, which are orthogonal to one another in three-dimensional space, are parallel to each other. For example, as shown in FIG. 1, the X-axis direction is parallel to the left-right direction of the control panel 1. The Y-axis direction is parallel to the front-rear direction of the control panel 1. The Z-axis direction is parallel to the up-down direction of the control panel 1.

[0011] A control panel 1 according to the embodiment is provided in electrical equipment, etc. The control panel 1 is a power distribution panel, a power distribution board, etc. that constitutes a power conversion device, a power supply device, a motor drive device, etc. As shown in FIG. 1 , the control panel 1 has a housing 2 and a unit 10.

[0012] The housing 2 has an opening on the front side. The housing 2 is provided with an opening / closing door (not shown) that opens and closes the opening. The housing 2 is provided with a plurality of base panels (shelf boards) 3. The interior of the housing 2 is divided into a plurality of levels by the base panels 3. The lowest base panel 3 may be flush with the bottom of the housing 2.

[0013] The base panels 3 are disposed inside the housing 2. The base panels 3 are attached to the housing 2. The base panels 3 are fixed to the housing 2. The base panels 3 are spaced apart from one another in the vertical direction. The base panels 3 are parallel to one another. The base panels 3 have the same contour shape. All of the base panels 3 are disposed horizontally. The multiple base panels 3 divide the interior of the housing 2 in the vertical direction.

[0014] The unit 10 can be placed on the base panel 3. Depending on the items to be stored in the housing 2, the unit 10 may not be placed on the base panel 3. When the unit 10 is placed on the base panel 3, the housing 2 is provided with a rear position restricting portion 14 and an upper fixed panel 17 (see FIGS. 2 and 3). The rear position restricting portion 14 and the upper fixed panel 17 will be described later.

[0015] The unit 10 is stored inside the housing 2. The unit 10 is placed on the base panel 3 while stored in the housing 2. The unit 10 moves in the Y direction when being stored from the outside to the inside of the housing 2. The unit 10 can be pulled out from the inside of the housing 2 to the outside. The unit 10 moves in the Y direction when being pulled out from the inside of the housing 2 to the outside.

[0016] The unit 10 houses multiple electrical devices (accessories) and multiple circuit components (accessories). Some of the electrical components (accessories) are connected to the outside by wiring. The unit 10 is equipped with wiring that is connected to the outside. The unit 10 has a rectangular outline when viewed in the X direction. The unit 10 has a rectangular outline when viewed in the Y direction. The unit 10 has a rectangular outline when viewed in the Z direction. The unit 10 has a rectangular outline similar to that of the base panel 3 when viewed in the Z direction.

[0017] 2 is a side view showing the state in which the units are stored in the housing according to the embodiment. As shown in FIG. 2, the unit 10 has a unit front panel 10b, a unit upper panel 10u, a unit rear panel 10f, and a unit lower panel (bottom) 10d. The unit rear panel 10f, the unit upper panel 10u, the unit front panel 10b, and the unit lower panel 10d surround the interior in a rectangular shape when viewed in the X direction.

[0018] The unit front panel 10b has a rectangular outline when viewed in the Y direction. The upper end of the unit front panel 10b is connected to the unit upper panel 10u. The lower end of the unit front panel 10b is connected to the unit lower panel 10d. The unit front panel 10b is exposed on the front side in the Y direction when the unit 10 is stored in the housing 2. When the unit 10 is stored in the housing 2, the unit front panel 10b is exposed at the front of the housing 2 when the opening and closing door is open.

[0019] The unit front panel 10b stands upright along the substantially vertical XZ plane when the unit 10 is stored in the housing 2. The unit front panel 10b is on the rear side in the direction of movement of the unit 10 when the unit 10 is stored in the housing 2. The unit front panel 10b is on the front side in the direction of movement of the unit 10 when the unit 10 is removed from the housing 2. The XZ plane is a plane that extends along the X and Z directions.

[0020] The unit upper plate 10u has a rectangular outline when viewed in the Z direction. The front side of the unit upper plate 10u is connected to the unit front plate 10b of the housing 2. The rear side of the unit upper plate 10u is connected to the unit rear plate 10f of the housing 2. The unit upper plate 10u has the same dimensions in the X direction as the unit front plate 10b. The unit upper plate 10u has the same dimensions in the X direction as the unit rear plate 10f. The unit upper plate 10u is a substantially horizontal XY plane when the unit 10 is stored in the housing 2. The unit upper plate 10u is parallel to the base panel 3 when the unit 10 is stored in the housing 2. The XY plane is a plane along the X and Y directions.

[0021] The unit rear plate 10f has a rectangular outline when viewed in the Y direction. The unit rear plate 10f has approximately the same outline as the unit front plate 10b when viewed in the Y direction. The upper end of the unit rear plate 10f is connected to the unit upper plate 10u. The lower end of the unit rear plate 10f is connected to the unit lower plate 10d. The unit rear plate 10f faces the rear side of the housing 2 when the unit 10 is stored in the housing 2. The unit rear plate 10f has the same dimensions in the X direction as the unit front plate 10b.

[0022] The unit rear plate 10f has the same dimensions in the X direction as the unit upper plate 10u. The unit rear plate 10f is parallel to the unit front plate 10b. The unit rear plate 10f stands upright along a substantially vertical XZ plane when the unit 10 is stored in the housing 2. When the unit 10 is stored in the housing 2, the unit rear plate 10f is the front side in the direction of movement of the unit 10. When the unit 10 is removed from the housing 2, the unit rear plate 10f is the rear side in the direction of movement of the unit 10.

[0023] The unit lower plate 10d has a rectangular outline when viewed in the Z direction. The unit lower plate 10d has approximately the same outline as the unit upper plate 10u when viewed in the Z direction. The unit lower plate 10d is connected to the unit front plate 10b on the front side of the housing 2. The unit lower plate 10d is connected to the unit rear plate 10f on the rear side of the housing 2. The unit lower plate 10d has the same dimensions in the X direction as the unit front plate 10b. The unit lower plate 10d has the same dimensions in the X direction as the unit rear plate 10f.

[0024] The unit lower plate 10d is in a substantially horizontal XY plane when the unit 10 is stored in the housing 2. The unit lower plate 10d is parallel to the base panel 3 when the unit 10 is stored in the housing 2. The unit lower plate 10d comes into contact with the base panel 3 when the unit 10 is stored in the housing 2. Both ends of the unit lower plate 10d in the X direction may be bent upward along the Z direction. The strength of the unit lower plate 10d can be improved by bending both ends in the X direction.

[0025] When the unit 10 is stored in the housing 2, the unit lower plate 10d extends further back in the X direction than the base panel 3. When the unit 10 is stored in the housing 2, the unit lower plate 10d protrudes from the back end 3f of the base panel 3. The back end 3f is parallel to the lower end of the unit rear plate 10f. When the unit 10 is stored in the housing 2, the back end 3f is closer to the unit rear plate 10f in the Y direction than the center of the unit lower plate 10d. When the unit 10 is stored in the housing 2, the back end 3f may be closer to the unit rear plate 10f in the Y direction than the midpoint between the center of the unit lower plate 10d and the unit rear plate 10f. Casters 19, which will be described later, are provided on the lower part of the unit lower plate 10d.

[0026] The unit front plate 10b has a front fixing plate 11 at its lower end. The front fixing plate 11 is formed along the XY plane. The front fixing plate 11 extends in the Y direction. The front fixing plate 11 is flush with the unit lower plate 10d. The front fixing plate 11 is parallel to the unit lower plate 10d. When the unit 10 is stored in the housing 2, the front fixing plate 11 extends rearward from the unit front plate 10b in the direction of movement of the unit 10. The front fixing plate 11 has the same dimensions as the unit front plate 10b in the X direction. The front fixing plate 11 is parallel to the base panel 3.

[0027] The front fixing plate 11 is fixed to the base panel 3. The front fixing plate 11 is fixed to the base panel 3 with bolts 12. By fixing the front fixing plate 11, the unit 10 is fixed to the base panel 3. The front fixing plate 11 has a through-hole 11s through which a connecting member (bolt) 12 passes (see FIG. 3). The base panel 3 has a through-hole 3s through which the bolt 12 passes (see FIG. 3). The front fixing plate 11 may be formed by bending the lower end of the unit front plate 10b. The connecting member (bolt) 12 is not limited to a bolt and may have other configurations. When removing the unit 10 from the housing 2, the front fixing plate 11 can be removed from the base panel 3 by removing the bolts 12. The unit 10 can be moved from the base panel 3 by releasing the front fixing plate 11.

[0028] The unit rear plate 10f has a rear fixing plate (unit fixing portion) 13 at its lower end. The rear fixing plate 13 is provided at the rear lower end 10fd of the unit 10. The rear fixing plate 13 positions the rear lower end 10fd of the unit 10. The rear fixing plate 13 is formed along the XY plane. The rear fixing plate 13 extends in the Y direction. The rear fixing plate 13 is flush with the unit lower plate 10d. The rear fixing plate 13 is parallel to the unit lower plate 10d. When the unit 10 is stored in the housing 2, the rear fixing plate 13 extends forward from the unit front plate 10b in the direction of movement of the unit 10. The rear fixing plate 13 has the same dimensions in the X direction as the unit rear plate 10f. The rear fixing plate 13 is parallel to the base panel 3.

[0029] The rear fixing plate 13 abuts against a rear position restricting portion (unit fixing portion) 14 when the unit 10 is stored in the housing 2. The rear position restricting portion (unit fixing portion) 14 will be described later. The rear fixing plate 13 may be formed by bending the lower end of the unit rear plate 10f. When the unit 10 is stored in the housing 2, the rear fixing plate 13 is flush with the base panel 3. The rear fixing plate 13 is not fixed by bolts. The rear fixing plate 13 is elastically deformable.

[0030] The rear fixing plate 13 abuts against the underside of the rear position restricting portion 14 when the unit 10 is stored in the housing 2. The rear position restricting portion 14 abuts against the rear lower end 10fd of the unit 10 when the unit 10 is stored in the housing 2. The rear position restricting portion 14 positions the rear lower end 10fd of the unit 10 when the unit 10 is stored in the housing 2. The rear position restricting portion 14 presses the abutting rear fixing plate 13 from above. The Z-direction position of the unit 10 relative to the base panel 3 is restricted by the rear position restricting portion 14 pressing the rear fixing plate 13 from above and the base panel 3 abutting the unit lower plate 10d from below. The rear position restricting portion 14 is elastically deformable.

[0031] The rear position restricting portion 14 has a rear vertical position restricting portion 14a extending in the Y direction and a rear front-rear position restricting portion 14b extending in the Z direction. The rear vertical position restricting portion 14a and the rear front-rear position restricting portion 14b are each formed as a plate. The Y-direction end of the rear vertical position restricting portion 14a and the Z-direction end of the rear front-rear position restricting portion 14b are connected to each other. The rear vertical position restricting portion 14a and the rear front-rear position restricting portion 14b are formed by bending a single plate.

[0032] The rear vertical position restricting portion 14a extends along a substantially horizontal XY plane. The rear vertical position restricting portion 14a has an end portion on the front side of the housing 2 in the Y direction connected to the rear front-rear position restricting portion 14b. The rear vertical position restricting portion 14a has an end portion in the Y direction connected to the rear front-rear position restricting portion 14b over its entire length in the X direction. The rear vertical position restricting portion 14a is spaced apart from the rear end portion 3f in the Y direction.

[0033] The rear front-rear position restricting portion 14b extends along a substantially vertical ZX plane. The lower end of the rear front-rear position restricting portion 14b is connected to the rear up-down position restricting portion 14a in the Z direction. The rear front-rear position restricting portion 14b abuts against the rear end of the unit 10 in the Y direction when the unit 10 is stored in the housing 2. The rear front-rear position restricting portion 14b abuts against the unit rear plate 10f in the Y direction when the unit 10 is stored in the housing 2. The rear front-rear position restricting portion 14b restricts the stored position of the unit 10 in the Y direction.

[0034] 3 is a perspective view showing the unit and the base panel before storage in the embodiment. As shown in FIG. 3, the rear position restricting portion 14 has lateral position restricting portions 14c at both ends in the X direction.

[0035] The lateral position restricting portion 14c is connected to both ends of the rear front-rear position restricting portion 14b in the X direction. The lateral position restricting portion 14c extends along a substantially vertical YZ plane. The lateral position restricting portion 14c may be in contact with the end of the rear up-down position restricting portion 14a that faces the front of the housing 2. The upper end of the lateral position restricting portion 14c coincides with the upper end of the rear front-rear position restricting portion 14b. The lateral position restricting portion 14c may be formed by bending both ends of the rear front-rear position restricting portion 14b in the X direction. The lateral position restricting portion 14c abuts both ends of the unit 10 in the X direction when the unit 10 is stored in the housing 2.

[0036] The lateral position restricting portions 14c restrict the storage position of the unit 10 in the X direction when the unit 10 is stored in the housing 2. The distance between the two lateral position restricting portions 14c in the X direction is equal to the X direction dimension of the unit 10. The distance between the two lateral position restricting portions 14c in the X direction may be slightly larger than the X direction dimension of the unit 10. The distance between the two lateral position restricting portions 14c in the X direction is equal to the X direction dimension of the unit rear plate 10f. The distance between the two lateral position restricting portions 14c in the X direction may be slightly larger than the X direction dimension of the unit rear plate 10f.

[0037] The distance between the two lateral position restricting portions 14c in the X direction is equal to the X direction dimension of the rear fixing plate 13. The distance between the two lateral position restricting portions 14c in the X direction may be slightly greater than the X direction dimension of the rear fixing plate 13. In the Y direction, the near end 14c1 of the lateral position restricting portion 14c, which is on the front side of the housing 2, is located closer to the front side of the housing 2 than the rear end 3f of the base panel 3. In the Y direction, the near end 14c1 of the lateral position restricting portion 14c, which is on the front side of the housing 2, may be formed at approximately the same position as the rear end 3f of the base panel 3. In the Y direction, the end of the lateral position restricting portion 14c, which is on the front side of the housing 2, may be located slightly farther from the front side of the housing 2 than the rear end 3f of the base panel 3. The lower end of the lateral position restricting portion 14c is connected to the rear position restricting fixing portion 14d.

[0038] The rear position restricting and fixing portion 14d is fixed to the base panel 3 with a bolt 15. By fixing the rear position restricting and fixing portion 14d, the rear position restricting and fixing portion 14 is fixed to the base panel 3. The rear position restricting and fixing portion 14d is located outward from both ends of the unit 10 in the X direction when the unit 10 is stored in the housing 2. The rear position restricting and fixing portion 14d extends along a substantially horizontal XY plane.

[0039] The rear position restricting and fixing portion 14d is formed such that its end portion on the front side of the housing 2 in the Y direction is at approximately the same position as the rear end portion 3f of the base panel 3. The rear position restricting and fixing portion 14d may be positioned such that its end portion on the front side of the housing 2 in the Y direction is closer to the front side of the housing 2 than the rear end portion 3f of the base panel 3. The rear position restricting and fixing portion 14d may be positioned such that its end portion on the front side of the housing 2 in the Y direction is farther from the front side of the housing 2 than the rear end portion 3f of the base panel 3.

[0040] The upper fixing panel 17 abuts against the unit 10 when the unit 10 is stored in the housing 2. The upper fixing panel 17 abuts against the rear upper end 10fu when the unit 10 is stored in the housing 2. The upper fixing panel 17 positions the rear upper end 10fu when the unit 10 is stored in the housing 2. The upper fixing panel 17 positions the unit 10 when the unit 10 is stored in the housing 2. The rear upper end 10fu abuts against the lower side of the upper fixing panel 17 when the unit 10 is stored in the housing 2. The rear upper end 10fu of the upper fixing panel 17 abuts against the front side of the housing 2 in the Y direction when the unit 10 is stored in the housing 2. The position of the upper fixing panel 17 is fixed relative to the base panel 3. Both ends of the upper fixing panel 17 in the X direction are connected to the housing 2. The upper fixing panel 17 is elastically deformable.

[0041] As will be described later, the upper fixing panel 17 regulates the position of the rear upper end 10fu when the unit 10 is stored in the housing 2. The upper fixing panel 17 is provided at a position that the rear upper end 10fu of the unit 10 first comes into contact with when the unit 10 is stored in the housing 2. The upper fixing panel 17 is provided at a position that the rear upper end 10fu of the unit 10 first comes into contact with when the unit 10 is tilted in the Y direction so that the front lower end 10bd is lifted off the base panel 3 and moved toward the rear in the Y direction while supported by casters 19, which will be described later, when storing the unit 10 in the housing 2.

[0042] The upper fixing panel 17 has an upper vertical position restricting portion 17a extending in the Y direction and an upper front-rear position restricting portion 17b extending in the Z direction. The upper vertical position restricting portion 17a and the upper front-rear position restricting portion 17b are each formed as a plate. The Y-direction end of the upper vertical position restricting portion 17a and the Z-direction end of the upper front-rear position restricting portion 17b are connected to each other. The upper vertical position restricting portion 17a and the upper front-rear position restricting portion 17b are formed by bending a single plate.

[0043] The upper vertical position restricting portion 17a extends along a substantially horizontal XY plane. The end of the upper vertical position restricting portion 17a that is located on the far side of the housing 2 in the Y direction is connected to the upper front-rear position restricting portion 17b. The far end of the upper vertical position restricting portion 17a in the Y direction is connected to the upper front-rear position restricting portion 17b over its entire length in the X direction. The front end 17a1 of the upper vertical position restricting portion 17a in the Y direction extends along the X direction over its entire length in the X direction. When the unit 10 is stored in the housing 2, the upper vertical position restricting portion 17a abuts against the far end of the unit upper plate 10u. When the unit 10 is stored in the housing 2, as described below, the front end 17a1 of the upper vertical position restricting portion 17a abuts against the unit upper plate 10u.

[0044] The upper front-rear position restricting portion 17b extends along a substantially vertical ZX plane. The upper end of the upper front-rear position restricting portion 17b is connected to the upper up-down position restricting portion 17a in the Z direction. The upper front-rear position restricting portion 17b abuts against the upper end of the unit rear plate 10f when the unit 10 is stored in the housing 2. The upper front-rear position restricting portion 17b restricts the storage position of the unit 10 in the Y direction.

[0045] The casters 19 are provided on the lower part of the unit lower plate 10d. The casters 19 protrude downward from the unit lower plate 10d. The casters 19 are rotatable around rotation shafts 19c extending in the X direction when the unit 10 is stored in the housing 2. The rotation shafts 19c are parallel to the ridge lines of the corners where the unit lower plate 10d and the unit rear plate 10f are connected. The rotation shafts 19c are parallel to the ridge lines of the corners where the unit lower plate 10d and the unit front plate 10b are connected. The rotation shafts 19c are spaced downward in the Z direction from the unit lower plate 10d.

[0046] The casters 19 are housed in guide grooves 32, which will be described later, when the unit 10 is housed in the housing 2. The casters 19 protrude downward from the base panel 3 when the unit 10 is housed in the housing 2. The casters 19 are in contact with the guide grooves 32, which will be described later, when the unit 10 is housed in the housing 2. The casters 19 are located closer to the front side of the housing 2 than the rear end 3f when the unit 10 is housed in the housing 2. The casters 19 run on the base panel 3 when the unit 10 is housed in the housing 2. The casters 19 run inside the guide grooves 32, which will be described later, when the unit 10 is housed in the housing 2.

[0047] The casters 19 are disposed in the center of the unit lower plate 10d in the X direction. The casters 19 are disposed in positions in the X direction that correspond to guide grooves 32, which will be described later, when the unit 10 is stored in the housing 2. The casters 19 are disposed apart from both ends of the unit lower plate 10d in the Y direction. The casters 19 are disposed in the center of the unit lower plate 10d, a long distance away from both ends of the unit lower plate 10d in the X direction.

[0048] The casters 19 are disposed at positions where, when the unit 10 is stored in the housing 2, the unit 10 can be tilted in the Y direction so that the front lower end 10bd is lifted off the base panel 3 and can travel on the base panel 3. The casters 19 are provided at positions where, when the unit 10 is stored in the housing 2, the unit 10 moves toward the rear in the Y direction and the rear upper end 10fu of the unit 10 comes into contact with the upper fixing panel 17, the casters 19 coincide with the front groove end 32b of the guide groove 32 in the Y direction, which will be described later.

[0049] The base panel 3 has guide grooves 32. When the unit 10 is stored in the housing 2, the guide grooves 32 restrict movement of the casters 19 when the unit 10 is moved toward the rear in the Y direction. The guide grooves 32 guide the movement of the casters 19. The guide grooves 32 guide the movement of the unit 10. The guide grooves 32 restrict the unit 10 so that it descends in the Z direction to a fixed position as the unit 10 moves in the Y direction. The guide grooves 32 are spaced apart from the unit lower plate 10d when the unit 10 is stored in the housing 2. When the unit 10 is stored in the housing 2, the base panel 3 is in contact with the unit lower plate 10d at a position around the guide grooves 32.

[0050] The guide groove 32 is provided in the base panel 3. The guide groove 32 extends in the Y direction. The guide groove 32 is inclined in the Y direction from the front groove end 32b to the rear groove end 32f. The guide groove 32 descends in the Y direction from the front groove end 32b to the rear groove end 32f. The front groove end 32b is at the same height as the base panel 3 in the Z direction. The rear groove end 32f descends from the base panel 3 in the Z direction by the same height as the protrusion amount of the caster 19 protruding downward from the unit lower plate 10d. The guide groove 32 is open outward on both sides in the X direction. The rear groove end 32f of the guide groove 32 is open outward in the Y direction. The rear groove end 32f is formed at approximately the same position in the Y direction as the rear end 3f of the base panel 3.

[0051] The guide groove 32 has a bottom (bottom plate) 32d. The bottom 32d is curved. The bottom 32d is formed in an arc shape when viewed in the X direction. The bottom 32d is curved in an arc shape centered at the position where the unit 10 contacts the upper fixing panel 17. The bottom 32d has a curved surface shape that descends from the front groove end 32b toward the rear groove end 32f, centered at the position where the unit 10 contacts the upper fixing panel 17. The bottom 32d can be formed as a notch in the base panel 3.

[0052] The bottom 32d is inclined downward near the front groove end 32b toward the rear groove end 32f. The bottom 32d extends in the Y direction near the rear groove end 32f. The entire length of the bottom 32d extends horizontally in the X direction. In other words, the bottom 32d is not inclined in the X direction. The bottom 32d is plate-shaped. The front groove end 32b of the bottom 32d is connected to the base panel 3. The bottom 32d is integral with the base panel 3. It is formed by bending the rear groove end 32f downward from the base panel 3 at the front groove end 32b.

[0053] The guide groove 32 regulates the movement locus of the caster 19 so that the rear lower end 10fd of the unit 10 rotates toward the rear side around the position where it contacts the upper fixed panel 17.

[0054] FIG. 4 is a side view showing the dimensions of the unit in the embodiment. FIG. 5 is a side view showing the dimensions of the base panel in the embodiment. FIG. 6 is a side view showing the dimensions of the unit and upper fixing panel in the embodiment. FIG. 7 is a side view showing the dimensions of the unit and base panel in the embodiment. The Z-direction dimension of the unit 10 is the Z-direction height Z10 as shown in FIG. 4. The Z-direction dimension of the unit rear plate 10f is the Z-direction height Z10. The Z-direction height Z10 is the Z-direction dimension from the upper surface of the unit upper plate 10u to the lower surface of the unit lower plate 10d.

[0055] As shown in Figure 4, the thickness of the rear fixing plate 13 is Z-direction thickness Z13. The Y-direction dimension of the rear fixing plate 13 is Y-direction dimension Y13. The Y-direction dimension Y13 is the Y-direction dimension from the rear surface of the unit rear plate 10f to the rear end of the rear fixing plate 13. The Y-direction dimension Y13 is the Y-direction protrusion dimension of the rear fixing plate 13.

[0056] 5, the Z-direction height dimension of the upper fixing panel 17 is Z-direction height Z17. Z-direction height Z17 is the Z-direction distance from the upper surface 3u of the base panel 3 to the lower surface of the upper vertical position regulating portion 17a.

[0057] 5, the Z-direction height dimension of the rear position restricting portion 14 is a Z-direction height Z14. The Z-direction height Z14 is the Z-direction distance from the upper surface 3u of the base panel 3 to the lower surface of the rear vertical position restricting portion 14a.

[0058] 6, the Y-direction dimension Y17 of the upper fixing panel 17 is the Y-direction length of the upper vertical position restricting portion 17a. The Y-direction length of the upper vertical position restricting portion 17a is the length in the Y-direction from the front end 17a1 to the base end of the upper vertical position restricting portion 17a. The Y-direction length of the upper vertical position restricting portion 17a is the length in the Y-direction from the front end 17a1 to the front side surface of the upper front-rear position restricting portion 17b.

[0059] As shown in FIG. 6, the Y-direction position Y10u of the unit 10 is the distance in the Y direction from the position where the front end 17a1 of the unit upper plate 10u abuts to the outer surface of the unit rear plate 10f.

[0060] The Y-direction mounting position of the caster 19 is defined by the angle θ, as shown in FIG. 7 . The angle θ is the angle between the upper surface 3u and the unit lower plate 10d of the base panel 3 and the unit 10 in the following state. The angle θ is defined when the rear upper end 10fu of the unit 10 abuts the upper fixing panel 17 when the unit 10 is stored in the housing 2. The angle θ is defined when the unit 10 is tilted in the Y direction so that the front lower end 10bd is lifted off the base panel 3 when the unit 10 is stored in the housing 2. The angle θ is defined when the caster 19 is in contact with the front groove end 32b when the unit 10 is stored in the housing 2. The angle θ is defined when the end of the rear fixing plate 13 abuts the rear end 3f of the base panel 3 when the unit 10 is stored in the housing 2. The angle θ is defined by the Y-direction dimension Y13.

[0061] Here, the following relationships hold: Z10 ≥ Z17 Z13 ≥ Z14 Y10u = Y14

[0062] 7, the distance between the upper fixing panel 17 and the guide groove 32 is R19 from the front end 17a1 to the front groove end 32b. The distance R19 is the distance from the point on the upper surface of the unit upper plate 10u where the front end 17a1 abuts in the unit 10 tilted at angle θ to the bottom of the caster 19 abutting against the front groove end 32b. The distance R19 from the front end 17a1 to the front groove end 32b is equal to the distance R19 from the point on the upper surface of the unit upper plate 10u where the front end 17a1 abuts in the unit 10 tilted at angle θ to the bottom of the caster 19 abutting against the front groove end 32b.

[0063] Furthermore, the distance R19 from the front end 17a1 to the front groove end 32b is equal to the distance R19 from the point on the top surface of the unit upper plate 10u where the front end 17a1 abuts to the bottom of the caster 19 abutting against the front groove end 32b. The distance R19 from the front end 17a1 to the front groove end 32b is equal to the distance R19 from the front end 17a1 to the rear groove end 32f. The distance R19 from the front end 17a1 to the top surface of the bottom 32d is equal to the distance R19 from the front end 17a1 to the rear groove end 32f. The distance R19 from the front end 17a1 to the vicinity of the rear groove end 32f is equal to the distance R19 from the point on the top surface of the unit upper plate 10u where the front end 17a1 abuts to the bottom of the caster 19 abutting against the front groove end 32b.

[0064] Next, a method for storing the unit 10 in the housing 2 will be described.

[0065] Fig. 8 is a process diagram showing a method for storing a unit in an embodiment. Fig. 9 is a process diagram showing a method for storing a unit in an embodiment. Fig. 10 is a process diagram showing a method for storing a unit in an embodiment. Fig. 11 is a process diagram showing a method for storing a unit in an embodiment. Fig. 12 is a process diagram showing a method for storing a unit in an embodiment. When storing the unit 10 in the housing 2, the unit 10 is prepared on the near side in the Y direction relative to the base panel 3 on which the unit 10 is placed, as shown in Fig. 8.

[0066] In this case, the unit 10 is positioned outside the housing 2 in the Y direction, with the unit upper plate 10u positioned higher than the unit lower plate 10d. The unit 10 is positioned outside the housing 2 in the Y direction, with the unit rear plate 10f closer to the base panel 3 than the unit front plate 10b. The unit 10 is positioned outside the housing 2 in the Y direction, with the rotation axis 19c aligned along the X direction.

[0067] In the unit 10, the lower ends of the casters 19 are at approximately the same height as the upper surface 3u of the base panel 3. Alternatively, in the unit 10, the casters 19 are positioned higher than the upper surface 3u of the base panel 3. In the unit 10, the unit upper plate 10u and the unit lower plate 10d are parallel to the base panel 3. Alternatively, in the unit 10, as long as the casters 19 are positioned higher than the upper surface 3u of the base panel 3, the unit upper plate 10u and the unit lower plate 10d may be inclined with respect to the base panel 3.

[0068] Next, as shown in FIG. 9 , the unit 10 is placed on the upper surface 3u of the base panel 3. The lower ends of the casters 19 of the unit 10 contact the upper surface 3u of the base panel 3. The lower ends of the casters 19 of the unit 10 contact the upper surface 3u at a position spaced apart from the front groove end 32b in the Y direction. The lower ends of the casters 19 of the unit 10 contact the upper surface 3u closer to the front groove end 32b in the Y direction. The unit 10 maintains an orientation in which the rotation axis 19c is aligned along the X direction. The unit 10 has the unit upper plate 10u and unit lower plate 10d parallel to the base panel 3. Alternatively, the unit 10 may have the unit upper plate 10u and unit lower plate 10d tilted relative to the base panel 3 as long as the front fixing plate 11 and the rear fixing plate 13 are not in contact with the upper surface 3u.

[0069] Furthermore, the unit 10 moves as the casters 19 rotate around the rotation shafts 19c. The unit 10 moves toward the rear in the Y direction along the top surface 3u. At this time, the unit 10 maintains an orientation in which the front fixing plate 11 and the rear fixing plate 13 are not in contact with the top surface 3u. The unit 10 maintains an orientation in which the rotation shafts 19c are aligned in the X direction. In the Y direction, the lower ends of the casters 19 of the unit 10 have not reached the front groove end 32b.

[0070] Next, the unit 10 is tilted around the rotation axis 19c as shown by the arrow in Figure 10. The unit 10 rotates around the rotation axis 19c in a direction in which the rear lower end 10fd moves downward. The unit 10 rotates around the rotation axis 19c in a direction in which the front lower end 10bd moves upward. The front fixing plate 11 of the unit 10 moves away from the base panel 3 compared to the rear fixing plate 13. At this time, the unit 10 maintains an orientation in which the rotation axis 19c is aligned along the X direction. The unit 10 maintains a state in which the rear fixing plate 13 is not in contact with the upper surface 3u.

[0071] The unit 10 travels in the Y direction along the upper surface 3u until the lower end of the caster 19 reaches the front groove end 32b. While traveling, the unit 10 maintains a posture in which the rotation axis 19c is aligned along the X direction. While traveling, the unit 10 maintains a posture inclined about the rotation axis 19c.

[0072] Next, as shown in Figure 11, the lower ends of the casters 19 of the unit 10 reach the front groove ends 32b. At the same time, the rear upper ends 10fu of the unit 10 abut against the upper fixed panel 17. The unit upper plate 10u of the unit 10 abuts against the upper vertical position restricting portions 17a. The front ends 17a1 of the upper vertical position restricting portions 17a in the Y direction abut against the unit upper plate 10u. A location on the top surface of the unit upper plate 10u abuts against the front end 17a1 at a position corresponding to position Y10u, which is the Y-direction distance from the rear surface of the unit rear plate 10f.

[0073] At the same time, the rear fixing plate 13 of the unit 10 reaches the rear end 3f. During this time, the unit 10 maintains an orientation in which the rotation axis 19c is aligned along the X direction. The unit 10 maintains an orientation in which it is tilted around the rotation axis 19c. The angle between the upper surface 3u of the unit 10 and the base panel 3 and the unit lower plate 10d is angle θ. The unit 10 and the base panel 3 maintain angle θ. The unit rear plate 10f of the unit 10 does not abut against the upper front-rear position regulating portion 17b.

[0074] When the rear fixing plate 13 of the unit 10 reaches the rear end 3f as viewed in the Z direction, both ends of the rear lower end 10fd in the X direction abut against the lateral position restricting portions 14c. The front end 14c1 of the lateral position restricting portion 14c is closer to the front side of the housing 2 than the rear end 3f in the Y direction. The rear fixing plate 13 abuts against the front end 14c1 before the rear end 3f. The rear fixing plate 13 sandwiched between the two lateral position restricting portions 14c is restricted in its position in the X direction. The rear lower end 10fd of the unit 10 is sandwiched between the lateral position restricting portions 14c, and its position in the X direction is restricted. The unit 10, whose position is restricted in the X direction, is in a position where the casters 19 can enter the guide grooves 32.

[0075] Next, as shown by the arrow in FIG. 12 , the unit 10 is tilted around the position where it abuts against the front end 17a1. The unit 10 rotates around the position where it abuts against the front end 17a1 so that the rear lower end 10fd faces rearward in the Y direction. The unit 10 rotates around the position where it abuts against the front end 17a1 so that the front lower end 10bd faces downward in the Z direction. The unit 10 rotates around the position where it abuts against the front end 17a1 so that the front lower end 10bd approaches the base panel 3. At this time, the unit upper plate 10u does not shift from the position where it abuts against the front end 17a1. The caster 19 of the unit 10 passes over the front groove end 32b and enters the inside of the guide groove 32.

[0076] The caster 19 travels in the Y direction along the bottom 32d within the guide groove 32. The bottom 32d descends from the front groove end 32b to the rear groove end 32f. The caster 19 descends along the bottom 32d. As the caster 19 travels, the unit 10 rotates around the position where it abuts the front end 17a1. At the same time, the unit 10 moves in a diagonal direction, with the front lower end 10bd pointing downward in the Z direction and toward the rear in the Y direction. The unit 10 moves in a diagonal direction, with the rear lower end 10fd pointing downward in the Z direction and toward the rear in the Y direction. At this time, the unit 10 maintains a state in which the lower surface of the unit lower plate 10d is spaced apart from the rear end 3f, as shown in FIG. 13 . The movement of the unit 10 is not obstructed by the base panel 3.

[0077] The unit 10 rotates around the position where it abuts the front end 17a1 and reaches the storage position as shown in FIG. 2. In the storage position, the unit rear plate 10f abuts against the rear front-rear position restricting portion 14b at the rear lower end 10fd. The upper surface of the rear fixing plate 13 abuts against the lower surface of the rear vertical position restricting portion 14a at the rear lower end 10fd. The upper surface of the rear fixing plate 13 is pressed against the lower surface of the rear vertical position restricting portion 14a. The rear lower end 10fd causes the rear fixing plate 13 and the rear vertical position restricting portion 14a to elastically deform. The rear fixing plate 13 and the rear vertical position restricting portion 14a are fixed by frictional forces generated by the elastic deformation, providing vibration damping in directions along the XY plane.

[0078] In the storage position, the rear upper end 10fu of the unit rear plate 10f abuts against the upper front-to-rear position restriction portion 17b. The rear upper end 10fu of the unit upper plate 10u abuts against the upper vertical position restriction portion 17a. The rear upper end 10fu of the unit upper plate 10u is pressed against the upper vertical position restriction portion 17a. The rear upper end 10fu of the unit upper plate 10u elastically deforms the upper vertical position restriction portion 17a. The upper vertical position restriction portion 17a is fixed in place by frictional forces generated by the elastic deformation, providing vibration damping in directions along the XY plane.

[0079] In the storage position, the front lower end 10bd of the unit lower plate 10d abuts against the upper surface 3u. The entire lower surface of the unit lower plate 10d, up to the innermost end 3f in the Y direction, abuts against the upper surface 3u. The through-hole 11s is positioned in line with the through-hole 3s. The unit 10 is fixed to the base panel 3 by passing bolts 12 through the through-holes 11s and 3s.

[0080] By tightening the bolt 12, a force is applied to the unit 10 so that the front lower end 10bd approaches the base panel 3. This increases the pressing force on the upper surface of the unit upper plate 10u and the lower surface of the upper vertical position restricting portion 17a. It also increases the pressing force on the upper surface of the rear fixing plate 13 and the lower surface of the rear vertical position restricting portion 14a.

[0081] This completes the process of storing the unit 10 in the housing 2.

[0082] To remove the stored unit 10 from the housing 2, the above-described storage method is carried out in reverse order.

[0083] The control panel 1 of the embodiment can eliminate the need for bolt fixing at the rear side while maintaining the vibration-proof structure. This allows the unit 10 to be sufficiently fixed by fitting it between the base panel 3, rear position restriction portion 14, and upper fixing panel 17 of the housing 2. At the same time, the upper surface of the rear fixing plate 13 abuts against the lower surface of the rear vertical position restriction portion 14a, thereby allowing the unit 10 to be sufficiently fixed.

[0084] The control panel 1 can maintain the angle θ of the unit 10 with respect to the base panel 3 by using the casters 19. The control panel 1 can improve the mobility of the unit 10 with respect to the base panel 3 by using the casters 19. The control panel 1 can easily fix the unit 10 to the base panel 3 by using the casters 19.

[0085] Compared to conventional control panels, the control panel 1 allows the distance between the fulcrum and the point of force when fixing the unit 10 to be greater. Side panels can also be provided on the sides of the unit 10 to close off the sides of the unit 10. Although the control panel 1 has been described as being configured so that one caster 19 corresponds to one guide groove 32, guide grooves 32 corresponding to multiple casters 19 can also be formed in the base panel 3.

[0086] By providing the casters 19 on the unit lower plate 10d, the control panel 1 can easily maintain the angle θ with the base panel 3. In addition, the angle θ can be easily set by changing the position in the Y direction where the casters 19 are provided on the unit lower plate 10d. The angle θ can also be easily set by changing the Y-direction length Y13 of the rear fixing plate 13.

[0087] After running the unit 10, the control panel 1 can be easily placed in the storage position by pushing the unit 10 in and rotating the front lower end 10bd downward while the front end 14a1 of the upper fixing panel is in contact with it.

[0088] When the control panel 1 is applied to a power conversion device, no tools are required even if the housing 2 is made smaller and internal components are densely packed. The control panel 1 can avoid the problem of tools not being able to reach the back. Furthermore, there is no need to fasten the rear of the unit 10 inside the housing 2 with bolts or the like. Moreover, the unit 10 can be securely fastened to the housing 2.

[0089] Therefore, it is possible to prevent the possibility of damage to the internal components of the unit 10 or the conductors, cables, etc. connected to the unit 10 due to vibrations that occur during transportation or operation of the device. At the same time, the unit 10 can be fixed to the housing 2 without using special tools. Because no special tools are used, there is no increase in the number of parts or in costs.

[0090] Furthermore, the circuit boards, supplies, etc. are heavy objects. The unit 10 is also heavy. However, the control panel 1 can improve the ease and workability of inserting and removing the unit 10 into and from the housing 2. At the same time, the work time required to insert and remove the unit 10 into and from the housing 2 can be reduced.

[0091] The control panel 1 can improve the fixation of the unit 10 to the housing 2. The control panel 1 can enable the unit 10 to be fixed inside the housing 2 without using special tools. The control panel 1 can improve the ease of attaching the unit 10 to the housing 2. The control panel 1 can improve the workability of attaching the unit 10 to the housing 2. The control panel 1 can shorten the work time required to attach the unit 10 to the housing 2. The control panel 1 can provide a configuration that accommodates flexible equipment placement when attaching the unit 10 to the housing 2.

[0092] The control panel 1 can more firmly fix the unit 10 to the housing 2 by increasing the coefficient of friction between the upper surface of the unit upper plate 10u and the lower surface of the upper vertical position restriction portion 17a, which come into contact with each other. This improves the vibration-damping effect. To increase the coefficient of friction between the upper surface of the unit upper plate 10u and the lower surface of the upper vertical position restriction portion 17a, the upper surface of the unit upper plate 10u and the lower surface of the upper vertical position restriction portion 17a can be subjected to a predetermined surface treatment. To increase the coefficient of friction, the upper surface of the unit upper plate 10u and the lower surface of the upper vertical position restriction portion 17a can be formed from a material with a high coefficient of friction.

[0093] The control panel 1 can more firmly fix the unit 10 to the housing 2 by increasing the coefficient of friction between the upper surface of the rear fixing plate 13 and the lower surface of the rear vertical position restricting portion 14a, which come into contact with each other. This improves the vibration-damping effect. To increase the coefficient of friction between the upper surface of the rear fixing plate 13 and the lower surface of the rear vertical position restricting portion 14a, the upper surface of the rear fixing plate 13 and the lower surface of the rear vertical position restricting portion 14a can be subjected to a predetermined surface treatment. To increase the coefficient of friction, the upper surface of the rear fixing plate 13 and the lower surface of the rear vertical position restricting portion 14a can be formed from a material with a high coefficient of friction.

[0094] The control panel 1 can more firmly fix the unit 10 to the housing 2 by increasing the coefficient of friction between the contact surfaces of the lower surface of the unit lower plate 10d and the upper surface 3u of the base plate 3. This improves the vibration-damping effect. To increase the coefficient of friction between the lower surface of the unit lower plate 10d and the upper surface 3u of the base plate 3, the lower surface of the unit lower plate 10d and the upper surface 3u of the base plate 3 can be subjected to a predetermined surface treatment. To increase the coefficient of friction, the lower surface of the unit lower plate 10d and the upper surface 3u of the base plate 3 can be formed from a material with a high coefficient of friction.

[0095] DESCRIPTION OF SYMBOLS 1... Control panel 2... Housing 3... Base panel 10... Unit 10fd... Lower rear end 10fu... Upper rear end 14... Rear position restricting portion (unit fixing portion) 17... Upper fixing panel 19... Caster 32... Guide groove 32d... Bottom (bottom plate)

Claims

1. A housing and a unit mounted on a base panel in the housing; casters provided on a bottom of the unit and capable of running on the base panel; an upper fixing panel that fixes an upper end of the unit at a rear side when the unit is stored; a guide groove for restricting movement of the casters so that the unit is lowered toward the back side to a fixed position when the unit is stored; a unit fixing portion that fixes a rear lower end of the unit when the entire lower surface of the unit is in contact with the base panel; having the upper fixing panel is disposed at a position where the unit is first contacted by the rear upper end of the unit when the unit is stored by supporting the unit with the casters and moving the unit toward the rear side so that the front lower end of the unit is lifted off the base panel; The guide groove is provided on the base panel and regulates the movement trajectory of the caster so that the rear lower end of the unit rotates toward the rear side around the position where the caster contacts the upper fixed panel. the guide groove has a curved shape that descends from the base panel toward the back side with the position where the guide groove contacts the upper fixing panel as a center, the unit fixing portion has a rear fixing plate provided at a rear lower end of the unit, and a rear position restricting portion that presses the rear fixing plate from above in a state in which the unit is housed in the housing, The rear position restricting portion, which presses the rear fixing plate from above, and the base panel, which abuts against the lower plate of the unit from below, restrict the vertical storage position of the unit relative to the base panel. Control panel.

2. (delete)

3. (delete)

4. (delete)

5. The bottom plate of the guide groove is integral with the base panel at the front side, and is formed by bending downward from the base panel. The control panel according to claim 1.