CN111937502B - Electrical equipment housing and electrical equipment - Google Patents
Electrical equipment housing and electrical equipment Download PDFInfo
- Publication number
- CN111937502B CN111937502B CN201880092066.4A CN201880092066A CN111937502B CN 111937502 B CN111937502 B CN 111937502B CN 201880092066 A CN201880092066 A CN 201880092066A CN 111937502 B CN111937502 B CN 111937502B
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- Prior art keywords
- hook
- mounting rail
- projection
- electrical equipment
- disposed
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- 238000009434 installation Methods 0.000 claims abstract description 19
- 238000010586 diagram Methods 0.000 description 14
- 210000000078 claw Anatomy 0.000 description 10
- 230000000452 restraining effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1462—Mounting supporting structure in casing or on frame or rack for programmable logic controllers [PLC] for automation or industrial process control
- H05K7/1474—Mounting of modules, e.g. on a base or rail or wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
- F16B2/18—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using cams, levers, eccentrics, or toggles
- F16B2/185—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using cams, levers, eccentrics, or toggles using levers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
- F16B5/0685—Joining sheets or plates to strips or bars
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
- H02B1/052—Mounting on rails
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mounting Components In General For Electric Apparatus (AREA)
- Connection Of Plates (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
An electrical equipment housing (100) is provided with: a body (3) provided with a convex portion (32) and a hook guide portion (31), wherein the hook guide portion (31) forms an installation space (33) for arranging the hat-shaped installation rail (4) between the convex portion (32); a 1 st hook (1) having an end (11) capable of sliding movement between a projected position projected into the mounting space (33) and a retracted position embedded into the hook guide (31); and a 2 nd hook (2) rotatably provided between a lock position where the projection (21) projects into the installation space (33) and an unlock position where the projection does not project, wherein the projection (32) has a return portion (321) that projects into the installation space (33), the return portion (321) restrains the restraint surfaces (4b, 4c), the back surface of the main body (3) restrains the restraint surfaces (4a, 4d), the one end portion (11) of the 1 st hook (1) disposed at the projection position restrains the restraint surface (4f), and the projection (21) of the 2 nd hook (2) disposed at the lock position restrains the restraint surface (4 e).
Description
Technical Field
The present invention relates to an electrical equipment housing fixed to a mounting rail and an electrical equipment.
Background
In the electric device, an electric device housing constituting an outer contour is fixed to a mounting rail. Patent document 1 discloses a structure in which a pair of protruding portions of an electrical equipment housing each have a locking claw, the locking claw of one protruding portion is slidable, and the distance between the locking claws is variable. In the structure disclosed in patent document 1, a mounting rail is disposed between a pair of protruding portions, and one of the locking claws is slid in a direction to narrow a gap between the locking claws, thereby fixing the electrical equipment casing to the rail.
Patent document 1: japanese laid-open patent publication No. 2002-100436
Disclosure of Invention
However, in the structure disclosed in patent document 1, if one of the locking claws is retracted for some reason and the distance between the locking claws is increased, the electrical equipment housing falls off from the mounting rail. If the force required to slide the locking claw is increased, the locking claw can be made less likely to retreat, but when the electrical equipment housing is attached to and detached from the mounting rail, a strong force needs to be applied to the locking claw, and operability is impaired.
The present invention has been made in view of the above circumstances, and an object thereof is to obtain an electrical equipment casing in which detachment from a mounting rail is prevented.
In order to solve the above problems and achieve the object, the present invention provides an electrical equipment casing, comprising: a body provided with a convex portion protruding from a back surface and a hook guide portion forming an attachment space between the convex portion and the hook guide portion, the attachment space being configured by a hat-shaped cross-sectional attachment rail having a convex side surface and a concave side surface and having flange portions at both ends; a 1 st hook slidably provided in the hook guide portion, the 1 st hook being slidably movable between a projected position where one end portion is projected to the installation space and a retracted position where the one end portion is buried in the hook guide portion; and a 2 nd hook having a projection rotatably provided between a lock position where the projection projects to the installation space and an unlock position where the projection does not project to the installation space. The convex portion has a return portion protruding to the mounting space. The return portion restrains an end surface and a convex side surface of the flange portion at one end portion of the mounting rail. The back surface of the body restrains the concave side surface of the flange portion at one end of the mounting rail and the concave side surface of the flange portion at the other end of the mounting rail. One end of the 1 st hook disposed at the projecting position restrains the convex side surface of the flange portion at the other end of the mounting rail. The projection of the 2 nd hook disposed at the locking position restrains the end surface of the flange portion at the other end of the mounting rail.
ADVANTAGEOUS EFFECTS OF INVENTION
The electrical equipment casing according to the present invention has an effect of preventing the casing from falling off the mounting rail.
Drawings
Fig. 1 is a perspective view of an electrical device having an electrical device housing according to embodiment 1 of the present invention.
Fig. 2 is a cross-sectional view of a portion of the electric apparatus casing according to embodiment 1 fixed to the mounting rail.
Fig. 3 is a diagram showing a structure of a mounting rail for fixing the electric apparatus casing according to embodiment 1.
Fig. 4 is a diagram showing a state before the electric equipment enclosure according to embodiment 1 is disposed on the mounting rail.
Fig. 5 is a diagram showing a state in which the electric equipment casing according to embodiment 1 is disposed on a mounting rail.
Fig. 6 is a cross-sectional view of a portion of the electric equipment casing fixed to the mounting rail according to embodiment 2 of the present invention.
Fig. 7 is a diagram showing a state in which the electric equipment casing according to embodiment 2 is disposed on the mounting rail.
Fig. 8 is a diagram showing a state in which the electric equipment casing according to embodiment 2 is fixed to the mounting rail.
Fig. 9 is a cross-sectional view of a portion of the electric equipment casing fixed to the mounting rail according to embodiment 3 of the present invention.
Fig. 10 is a diagram showing a state in which the electric equipment casing according to embodiment 3 is disposed on a mounting rail.
Fig. 11 is a diagram showing a state in which the electric equipment casing according to embodiment 3 is fixed to the mounting rail.
Detailed Description
Next, an electrical equipment housing and an electrical equipment according to an embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the embodiments.
Fig. 1 is a perspective view of an electrical device having an electrical device housing according to embodiment 1 of the present invention. Fig. 2 is a cross-sectional view of a portion of the electric apparatus casing according to embodiment 1 fixed to the mounting rail. Further, fig. 1 illustrates the electrical equipment enclosure 100 and the mounting rail 4 independently of each other. The electric device 101 having the electric device casing 100 according to embodiment 1 can be exemplified by a programmable logic controller, a servo controller, a tension controller, a shutter, and a breaker, but is not limited thereto. The electrical equipment casing 100 has a hook guide 31 and a projection 32 on the back surface of the main body 3. Hereinafter, a space between the hook guide 31 and the convex portion 32 is referred to as an installation space 33. The electrical equipment enclosure 100 is fixed to the mounting rail 4 disposed in the mounting space 33.
Fig. 3 is a diagram showing a structure of a mounting rail for fixing the electric apparatus casing according to embodiment 1. The mounting rail 4 has a hat-shaped cross-sectional shape having a convex side surface and a concave side surface, and flange portions 43 provided at both ends. The flange portion 43 at one end of the mounting rail 4 includes: a constraining surface 4a as a concave side surface, a constraining surface 4b as an end surface, and a constraining surface 4c as a convex side surface. The flange portion 43 at the other end of the mounting rail 4 includes: a constraining surface 4d as a concave side surface, a constraining surface 4e as an end surface, and a constraining surface 4f as a convex side surface. The mounting rail 4 can exemplify a rail according to german industry standards (Deutsche Industrie normausschuss), called DIN rail, but is not limited to the DIN rail. The mounting rail 4 has a long hole 41 formed in the crown portion 40, and the mounting rail 4 is set at a setting position by a rail mounting screw 42 passing through the long hole 41. The installation site of the mounting rail 4 is not limited to the above, and the ferroelectric disk 50 can be exemplified. The flange portions 43 at both ends of the mounting rail 4 are each restrained from 3 directions, whereby the main body 3 is fixed to the mounting rail 4. The mounting of the electrical equipment casing 100 to the mounting rail 4 will be described later. The width of the mounting rail 4 is a width between the constraining surface 4b, which is the end surface of the flange portion 43 at one end, and the constraining surface 4e, which is the end surface of the flange portion 43 at the other end.
The hook guide 31 has a groove protruding to the back side of the body 3 through the mounting space 33. The 1 st hook 1 is provided in a groove of the hook guide 31 passing through the installation space 33. The 1 st hook 1 is slidably provided on the hook guide 31, and the amount of projection into the mounting space 33 can be changed. The hook guide 31 guides the sliding movement of the 1 st hook 1. The sliding direction of the 1 st hook 1 is shown by arrow a in fig. 2. The 1 st hook 1 has a restriction surface 1c at one end 11. The 1 st hook 1 is formed with a recess 12 at one end 11. The 1 st hook 1 has an operation portion 13 formed at the other end portion 14, and the operation portion 13 is biased when a user performs a sliding operation. The 1 st hook 1 has a cantilever beam bar-shaped latch lever 15.
The main body 3 is formed with a hole 34 at a portion facing the installation space 33. A stopper 35 is formed at the edge of the hole 34. The main body 3 has a latch projection 36 at the setting portion of the 1 st hook 1. The convex portion 32 of the main body 3 is formed with a returning portion 321 protruding toward the mounting space 33. The returning section 321 has: a restriction surface 3b rising from a restriction surface 3a which is a rear surface of the body 3; and a constraining surface 3c extending from the constraining surface 3b in parallel with the constraining surface 3 a.
The latch projection 36 has a shape having a maximum height between the one end 361 and the other end 362 in the sliding direction of the 1 st hook 1. When the tip end portion 151 of the latch lever 15 abuts against the latch projection 36, the tip end portion 151 of the latch lever 15 is biased to the one end portion 11 side or the other end portion 14 side of the 1 st hook 1 along the inclined surface of the latch projection 36. Therefore, if the 1 st hook 1 is released in a state where the distal end portion 151 of the latch lever 15 abuts on the latch projection 36, the 1 st hook 1 is disposed at any position of the projecting position where the latch projection 36 is located on the other end portion 14 side of the 1 st hook 1 with respect to the distal end portion 151 of the latch lever 15, and the retracted position where the latch projection 36 is located on the one end portion 11 side of the 1 st hook 1 with respect to the distal end portion 151 of the latch lever 15. That is, the latch projection 36 and the latch lever 15 have a mechanism for disposing the 1 st hook 1 between the projected position and the retracted position at the projected position or the retracted position. When the 1 st hook 1 is disposed at the projecting position, the one end portion 11 projects into the mounting space 33. When the 1 st hook 1 is disposed at the retracted position, the one end portion 11 is embedded in the hook guide portion 31. That is, the 1 st hook 1 is slidingly moved between the projected position and the retracted position. When the front end 151 of the latch lever 15 passes over the latch boss 36, a click feeling is generated, and therefore the user can recognize that the 1 st hook 1 is disposed at the projecting position or the retracted position by the sliding operation based on the tactile sensation.
In a state where the 1 st hook 1 is disposed at the retreat position, the distance between the returning portion 321 and the hook guide portion 31 is greater than or equal to the width of the mounting rail 4. In a state where the 1 st hook 1 is disposed at the projecting position, the interval between the returning section 321 and the one end 11 of the 1 st hook 1 is narrower than the width of the mounting rail 4.
The 2 nd hook 2 is provided rotatably about a fulcrum 37 provided inside the body 3. The 2 nd hook 2 is formed with a projection 21 on the side of one end 22 from the fulcrum 37. The projection 21 has a restriction surface 2 d. A stopper 211 is formed on the projection 21. The 2 nd hook 2 has an operation portion 24 on the other end 23 side from the fulcrum 37. The operating portion 24 protrudes to the outside of the main body 3. By applying a force to the operation portion 24, the 2 nd hook 2 rotates about the fulcrum 37. By rotating the 2 nd hook 2, the projection 21 of the 2 nd hook 2 can be moved in and out with respect to the mounting space 33 through the hole 34 of the main body 3. That is, the 2 nd hook 2 moves between a lock position where the projection 21 projects to the installation space 33 and an unlock position where the projection 21 does not project to the installation space 33. Further, an elastic member may be provided to bias the 2 nd hook 2 to the locking position side.
A procedure for fixing the electrical equipment enclosure 100 to the mounting rail 4 will be described. Fig. 4 is a diagram showing a state before the electric equipment enclosure according to embodiment 1 is disposed on the mounting rail. The 1 st hook 1 is disposed at the retreat position, and the distance between the returning portion 321 and the hook guide portion 31 is greater than or equal to the width of the mounting rail 4.
Fig. 5 is a diagram showing a state in which the electric equipment casing according to embodiment 1 is disposed on a mounting rail. Since the distance between the returning section 321 and the hook guide section 31 is greater than or equal to the width of the mounting rail 4, the electrical equipment enclosure 100 can be disposed on the mounting rail 4 without tilting the electrical equipment enclosure 100. By arranging the electrical equipment casing 100 on the mounting rail 4, the constraining surfaces 3b and 3c of the return portion 321 constrain the constraining surface 4b, which is the end surface of the flange portion 43 at one end, and the constraining surface 4c, which is the convex side surface of the flange portion 43 at one end, and the constraining surface 3a, which is the back surface of the main body 3, constrains the constraining surface 4a, which is the concave side surface of the flange portion 43 at one end.
If the force is applied to the operation portion 13 and the 1 st hook 1 is slid in a direction in which the projecting amount of the mounting space 33 increases, the tip end portion 151 of the latch lever 15 goes over the peak of the latch projection 36, and the latch projection 36 is positioned on the other end portion 14 side of the 1 st hook 1 with respect to the tip end portion 151 of the latch lever 15. Then, the tip end portion 151 of the latch lever 15 is biased toward the one end portion 11 of the 1 st hook 1, and the 1 st hook 1 is disposed at the projecting position. Therefore, the constraining surface 1c of the one end 11 of the 1 st hook 1 constrains the constraining surface 4f, which is the convex side surface of the flange portion 43 of the other end of the mounting rail 4, and the constraining surface 3a, which is the back surface of the body 3, constrains the constraining surface 4d, which is the concave side surface of the flange portion 43 of the other end of the mounting rail 4.
Then, the 2 nd hook 2 is rotated and placed in the lock position by applying a force to the operation portion 24. The stopper 35 and the stopper 211 are engaged, whereby the 2 nd hook 2 is fixed in a posture in which the projection 21 projects from the hole 34 to the mounting space 33. Thereby, the restraining surface 2d of the projection 21 of the 2 nd hook 2 restrains the restraining surface 4e, which is the end surface of the flange portion 43 at the other end of the mounting rail 4.
The constraining surfaces 4a, 4b, 4c, 4d, 4e, 4f of the mounting rail 4 are constrained by the constraining surfaces 3a, 3b, 3c of the main body 3, the constraining surface 1c of the 1 st hook 1 and the constraining surface 2d of the 2 nd hook 2, whereby the movement of the main body 3 in the direction perpendicular to the longitudinal direction of the mounting rail 4 is restricted. Therefore, the electrical equipment enclosure 100 is prevented from falling off the mounting rail 4. Further, gaps may be provided between the constraining surfaces 3a, 3b, 3c of the body 3, the constraining surface 1c of the 1 st hook 1, the constraining surface 2d of the 2 nd hook 2, and the constraining surfaces 4a, 4b, 4c, 4d, 4e, 4f of the mounting rail 4.
When the electrical equipment enclosure 100 is detached from the mounting rail 4, the 2 nd hook 2 is rotated and placed at the unlock position by applying a force to the operation portion 24. The 2 nd hook 2 disposed at the lock position is fixed by the stoppers 35 and 211, but can be rotated by applying a force exceeding the braking force of the stoppers 35 and 211. The projection 21 is embedded in the body 3 from the hole 34, whereby the restriction of the restriction surface 4e of the mounting rail 4 is released.
A force in a direction to move the 1 st hook 1 to the retreat position is applied to the operation portion 13. If the 1 st hook 1 slides and the front end portion 151 of the latch lever 15 goes over the peak of the latch projection 36, the front end portion 151 of the latch lever 15 is pretensioned on the other end portion 14 side of the 1 st hook 1. Therefore, the 1 st hook 1 is disposed at the retracted position. When the 1 st hook 1 is disposed at the retracted position, the restriction of the restriction surfaces 4d and 4f of the mounting rail 4 is released. Next, by separating the electrical equipment enclosure 100 from the mounting rail 4, the restriction of the restriction surfaces 4a, 4b, and 4c of the mounting rail 4 is released.
In the electrical equipment enclosure 100 according to embodiment 1, in a state where the 1 st hook 1 is disposed at the projecting position and the 2 nd hook 2 is disposed at the locking position, movement in a direction perpendicular to the longitudinal direction of the mounting rail 4 is restricted, and therefore, the electrical equipment enclosure is not likely to fall off after being fixed to the mounting rail 4.
In a state where the electrical equipment enclosure 100 according to embodiment 1 is fixed to the mounting rail 4, the restriction surface 4e of the mounting rail 4 is restricted by the restriction surface 2d of the projection 21 of the 2 nd hook 2 that is rotatable about the fulcrum 37. Therefore, even if a force in the width direction of the mounting rail 4 is applied to the electrical equipment enclosure 100 fixed to the mounting rail 4, a force in the direction of rotating the 2 nd hook 2 is not applied to the restraining surface 2d of the 2 nd hook 2. Thus, even if a force in the width direction of the mounting rail 4 is applied to the electrical equipment enclosure 100 fixed to the mounting rail 4, the 2 nd hook 2 is still disposed at the lock position. In a state where the 2 nd hook 2 is arranged at the lock position, a force in the width direction of the mounting rail 4 is not applied from the mounting rail 4 to the 1 st hook 1. That is, the electrical equipment enclosure 100 according to embodiment 1 maintains the state in which the 1 st hook 1 is disposed at the projecting position and the 2 nd hook 2 is disposed at the locking position even when a force in the width direction of the mounting rail 4 is applied when the electrical equipment enclosure is fixed to the mounting rail 4.
Further, the electrical equipment housing in which the distance between the returning section and the hook guide section is narrower than the width of the mounting rail is prevented from falling off the mounting rail, but must be inclined with respect to the mounting rail when the mounting rail is disposed in the mounting space. If the electrical equipment enclosure is tilted when the mounting rail is disposed in the mounting space, there is a possibility that the electrical equipment enclosure interferes with the mounting surface, and therefore there is an upper limit to the tilt of the electrical equipment enclosure with respect to the mounting rail. If the electrical equipment housing is large, interference with the mounting surface occurs even if the inclination with respect to the mounting rail is small. Therefore, the size of the electrical equipment enclosure that needs to be tilted when the mounting rail is disposed in the mounting space is limited. In the electrical equipment enclosure 100 according to embodiment 1, the distance between the returning section 321 and the hook guide section 31 is greater than or equal to the width of the mounting rail 4 in the state where the 1 st hook 1 is disposed at the retracted position, and therefore, the electrical equipment enclosure does not need to be inclined when disposed on the mounting rail 4. Therefore, the electrical equipment enclosure 100 according to embodiment 1 is not limited in size.
Fig. 6 is a cross-sectional view of a portion of the electric equipment casing fixed to the mounting rail according to embodiment 2 of the present invention. The same reference numerals are given to the parts common to the electric equipment casing according to embodiment 1, and the description thereof is omitted.
The 1 st hook 1 has a 1 st inclined surface 1a and a 2 nd inclined surface 1b on the 2 nd hook 2 side, and the 1 st inclined surface 1a and the 2 nd inclined surface 1b are opposed to each other. The 2 nd inclined surface 1b is provided closer to the one end 11 than the 1 st inclined surface 1 a.
The 2 nd hook 2 has: a 1 st cam surface 2a which abuts the 1 st inclined surface 1a when the 1 st hook 1 slides in a direction in which the amount of projection of the mounting space 33 increases, and rotates the 2 nd hook 2 toward the lock position; and a 2 nd cam surface 2b which abuts the 2 nd inclined surface 1b when the 1 st hook 1 slides in a direction in which the amount of projection into the mounting space 33 decreases, and rotates the 2 nd hook 2 toward the unlock position. The 1 st cam surface 2a is provided on the other end 23 side of the fulcrum 37. The 2 nd cam surface 2b is provided on the side of the one end 22 with respect to the fulcrum 37. The 1 st cam surface 2a is provided on the boss 2e, and the 2 nd cam surface 2b is provided on the boss 2 f. Further, the 1 st cam surface 2a and the 2 nd cam surface 2b are formed as the same projection. In embodiment 2, the 2 nd hook 2 does not have an operation portion, and is disposed entirely inside the main body 3.
When the 1 st hook 1 is disposed at the projecting position, the 1 st cam surface 2a abuts the 1 st inclined surface 1a to rotate the 2 nd hook 2 toward the locking position. When the 1 st hook 1 is disposed at the retreat position, the 2 nd cam surface 2b abuts the 2 nd inclined surface 1b to rotate the 2 nd hook 2 toward the unlock position.
A procedure for fixing the electrical equipment enclosure 100 to the mounting rail 4 will be described. As shown in fig. 6, when the 2 nd cam surface 2b abuts the 2 nd inclined surface 1b and the 1 st hook 1 is disposed at the retracted position, the distance between the returning section 321 and the hook guide section 31 is greater than or equal to the width of the mounting rail 4.
Fig. 7 is a diagram showing a state in which the electric equipment casing according to embodiment 2 is disposed on the mounting rail. Since the distance between the returning section 321 and the hook guide section 31 is greater than or equal to the width of the mounting rail 4, the electrical equipment enclosure 100 can be disposed on the mounting rail 4 without tilting the electrical equipment enclosure 100. By arranging the electrical equipment casing 100 on the mounting rail 4, the constraining surfaces 3b and 3c of the return portion 321 constrain the constraining surface 4b, which is the end surface of the flange portion 43 at one end, and the constraining surface 4c, which is the convex side surface of the flange portion 43 at one end, and the constraining surface 3a, which is the back surface of the main body 3, constrains the constraining surface 4a, which is the concave side surface of the flange portion 43 at one end.
The 1 st hook 1 is disposed at the projecting position and the 2 nd hook 2 is disposed at the locking position, and the constraining surfaces 4a, 4b, 4c, 4d, 4e, 4f of the mounting rail 4 are constrained by the constraining surfaces 3a, 3b, 3c of the main body 3, the constraining surface 1c of the 1 st hook 1, and the constraining surface 2d of the 2 nd hook 2, whereby the movement of the electric apparatus casing 100 in the direction perpendicular to the longitudinal direction of the mounting rail 4 is restricted. Therefore, the electrical equipment enclosure 100 is prevented from falling off the mounting rail 4. Further, gaps may be provided between the constraining surfaces 3a, 3b, 3c of the body 3, the constraining surface 1c of the 1 st hook 1, the constraining surface 2d of the 2 nd hook 2, and the constraining surfaces 4a, 4b, 4c, 4d, 4e, 4f of the mounting rail 4.
Fig. 8 is a diagram showing a state in which the electric equipment casing according to embodiment 2 is fixed to the mounting rail. When the 1 st hook 1 is slid and disposed at the projecting position by applying a force to the operation portion 13, the 1 st inclined surface 1a and the 1 st cam surface 2a come into contact with each other, and the 2 nd hook 2 is rotated and disposed at the lock position. In a state where the 1 st hook 1 is disposed at the projecting position, the distance between the returning section 321 and the one end 11 of the 1 st hook 1 is narrower than the width of the mounting rail 4, and therefore the mounting rail 4 is sandwiched between the one end 11 of the 1 st hook 1 and the main body 3. Therefore, the constraining surfaces 4d, 4e, 4f of the mounting rail 4 are constrained by the constraining surface 3a of the body 3, the constraining surface 1c of the 1 st hook 1, and the constraining surface 2d of the 2 nd hook 2. In the electrical equipment enclosure 100 according to embodiment 2, similarly to the electrical equipment enclosure 100 according to embodiment 1, even when a force in the width direction of the mounting rail 4 is applied when the electrical equipment enclosure 100 is fixed to the mounting rail 4, the state in which the 1 st hook 1 is disposed at the projecting position and the 2 nd hook 2 is disposed at the locking position is maintained.
When the electrical equipment enclosure 100 is detached from the mounting rail 4, a force is applied to the operation portion 13 to slide the 1 st hook 1 and place it at the retracted position. Thereby, the 2 nd cam surface 2b abuts on the 2 nd inclined surface 1b, and the 2 nd hook 2 is rotated and disposed at the unlock position. The 1 st hook 1 is disposed at the retracted position, and the 2 nd hook 2 is embedded into the body 3 from the hole 34, whereby the restriction surfaces 4d, 4e, and 4f of the mounting rail 4 are opened. Next, by separating the electrical equipment enclosure 100 from the mounting rail 4, the constraining surfaces 4a, 4b, and 4c of the mounting rail 4 are opened.
Since the electrical equipment enclosure 100 according to embodiment 2 rotates the 2 nd hook 2 in conjunction with the operation of sliding the 1 st hook 1, the user does not need to perform the operation of rotating the 2 nd hook 2.
Fig. 9 is a cross-sectional view of a portion of the electric equipment casing fixed to the mounting rail according to embodiment 3 of the present invention. The same reference numerals are given to the parts common to the electric equipment enclosure 100 according to embodiment 1, and the description thereof is omitted. The body 3 is provided with a hook 9. The hook portion 9 corresponds to the 2 nd hook 2 of the electrical equipment enclosure 100 according to embodiment 1. That is, in the electrical equipment enclosure 100 according to embodiment 3, the 2 nd hook is integrated with the main body 3. The hook 9 is a plate spring having a projection 99 at one end, and is pushed up by the projection 16 of the 1 st hook 1 when the 1 st hook 1 is disposed at the retracted position. When the 1 st hook 1 is disposed at the projecting position, the hook portion 9 is disposed at a lock position where the projection 99 projects into the mounting space 33. The hook 9 is disposed at an unlock position where the projection 99 does not project into the mounting space 33 when the 1 st hook 1 is disposed at the retreat position. The hook 9 is disposed in the locking position when no force is applied from the 1 st hook 1, and therefore can be regarded as being biased toward the locking position. The restriction surface 9a of the protrusion 99 is provided with a chamfered surface 9 b.
A procedure for fixing the electrical equipment enclosure 100 according to embodiment 3 to the mounting rail will be described. Fig. 10 is a diagram showing a state in which the electric equipment casing according to embodiment 3 is disposed on a mounting rail. The hook 9 is disposed at an unlocking position pushed up by the projection 16 of the 1 st hook 1 disposed at the retracted position, and the distance between the return portion 321 and the hook guide portion 31 is greater than or equal to the width of the mounting rail 4. Since the distance between the returning section 321 and the hook guide section 31 is greater than or equal to the width of the mounting rail 4, the electrical equipment enclosure 100 can be disposed on the mounting rail 4 without tilting the electrical equipment enclosure 100. By arranging the electrical equipment casing 100 on the mounting rail 4, the constraining surfaces 3b and 3c of the return portion 321 constrain the constraining surface 4b, which is the end surface of the flange portion 43 at one end, and the constraining surface 4c, which is the convex side surface of the flange portion 43 at one end, and the constraining surface 3a, which is the back surface of the main body 3, constrains the constraining surface 4a, which is the concave side surface of the flange portion 43 at one end.
Fig. 11 is a diagram showing a state in which the electric equipment casing according to embodiment 3 is fixed to the mounting rail. When a force is applied to the operation portion 13 to slide the 1 st hook 1 and place the hook in the projecting position, the projection 16 of the 1 st hook 1 enters the escape portion 91 of the hook 9, and the 1 st hook 1 does not push up the hook 9 and the hook 9 is placed in the locking position. Further, there may be a gap between the escape portion 91 and the projection 16. In a state where the 1 st hook 1 is disposed at the projecting position, the distance between the returning section 321 and the one end 11 of the 1 st hook 1 is narrower than the width of the mounting rail 4, and therefore the mounting rail 4 is sandwiched between the one end 11 of the 1 st hook 1 and the main body 3. Therefore, the restraining surface 1c of the one end 11 of the 1 st hook 1 restrains the restraining surface 4f, which is the convex side surface of the flange portion 43 of the other end of the mounting rail 4, the restraining surface 3a, which is the back surface of the body 3, restrains the restraining surface 4d, which is the concave side surface of the flange portion 43 of the other end of the mounting rail 4, and the restraining surface 9a of the protrusion 99 of the hook portion 9 restrains the restraining surface 4e, which is the end surface of the flange portion 43 of the other end of the mounting rail 4.
The constraining surfaces 4a, 4b, 4c, 4d, 4e, 4f of the mounting rail 4 are constrained by the constraining surfaces 3a, 3b, 3c of the main body 3, the constraining surface 1c of the 1 st hook 1 and the constraining surface 9a of the hook portion 9, whereby the movement of the electric apparatus casing 100 in the direction perpendicular to the longitudinal direction of the mounting rail 4 is restricted. Therefore, the electrical equipment enclosure 100 is prevented from falling off the mounting rail 4. Further, gaps may be provided between the constraining surfaces 3a, 3b, 3c of the body 3, the constraining surface 1c of the 1 st hook 1, the constraining surface 9a of the hook portion 9, and the constraining surfaces 4a, 4b, 4c, 4d, 4e, 4f of the mounting rail 4. In the electrical equipment enclosure 100 according to embodiment 3, similarly to the electrical equipment enclosure 100 according to embodiment 1, even when a force in the width direction of the mounting rail 4 is applied when the electrical equipment enclosure 100 is fixed to the mounting rail 4, the state in which the 1 st hook 1 is disposed at the projecting position and the hook portion 9 is disposed at the lock position is maintained.
When the electrical equipment enclosure 100 is detached from the mounting rail 4, a force is applied to the operation portion 13 to slide the 1 st hook 1 and place it at the retracted position. Thereby, the projection 16 of the 1 st hook 1 pushes up the hook 9, the hook 9 is disposed at the unlock position, and the engagement between the hook 9 and the recess 12 is released. Further, since the chamfered surface 9b is provided on the restriction surface 9a, the hook 9 does not interfere with the operation of sliding the 1 st hook 1. The 1 st hook 1 is disposed at the retracted position and the hook portion 9 is disposed at the unlock position, whereby the restraint surfaces 4d, 4e, and 4f of the mounting rail 4 are released. Next, by separating the electrical equipment enclosure 100 from the mounting rail 4, the constraining surfaces 4a, 4b, and 4c of the mounting rail 4 are opened.
In the electrical equipment enclosure 100 according to embodiment 3, the hook 9 is integrated with the main body 3, and therefore, the increase in the number of components can be suppressed. Further, since it is not necessary to dispose the 2 nd hook in the space inside the main body 3, the size of the electrical equipment enclosure 100 can be prevented from increasing.
The configuration described in the above embodiment is an example of the content of the present invention, and may be combined with other known techniques, and a part of the configuration may be omitted or modified without departing from the scope of the present invention.
Description of the reference numerals
1 st hook, 1a 1 st inclined surface, 1b 2 nd inclined surface, 1c, 2d, 3a, 3b, 3c, 4a, 4b, 4c, 4d, 4e, 4f, 9a restraining surface, 2 nd hook, 2a 1 st cam surface, 2b 2 nd cam surface, 2e, 2f, 16, 21, 99 protrusion, 3 body, 4 mounting rail, 9 hook portion, 9b chamfered surface, 11, 361 one end portion, 12 concave portion, 13, 24 operating portion, 14, 362 other end portion, 15 latch lever, 22 one end, 23 other end, 31 hook guide portion, 32 convex portion, 33 mounting space, 34 hole, 35, 211, 36 latch protrusion, 37 fulcrum, 40 crown portion, 41 long hole, 42 rail mounting screw, 43 flange portion, 50 strong electric disc, 91 escape portion, 100 electric equipment frame body, 101 electric equipment, 151 front end portion, 321 return portion.
Claims (4)
1. An electrical equipment enclosure comprising:
a body provided with a convex portion protruding from a back surface and a hook guide portion forming an attachment space between the hook guide portion and the convex portion, the attachment space being configured by a mounting rail having a hat-shaped cross-sectional shape having a convex side surface and a concave side surface and having flange portions at both ends;
a 1 st hook slidably provided to the hook guide portion, the 1 st hook being slidably movable between a projected position where one end portion is projected to the installation space and a retracted position where the one end portion is buried in the hook guide portion; and
a 2 nd hook having a projection rotatably provided between a lock position where the projection projects to the installation space and an unlock position where the projection does not project to the installation space,
the convex portion has a return portion protruding to the mounting space,
the return portion restrains the end surface of the flange portion and the convex side surface of one end portion of the mounting rail,
the back surface of the body restrains the concave side surface of the flange portion at one end of the mounting rail and the concave side surface of the flange portion at the other end of the mounting rail,
the one end portion of the 1 st hook disposed at the projecting position restrains the convex side surface of the flange portion at the other end portion of the mounting rail,
the projection of the 2 nd hook disposed at the locking position restrains an end surface of the flange portion at the other end of the mounting rail,
the 2 nd hook has one end and the other end, the 2 nd hook having: a 1 st cam surface provided on the other end side of a fulcrum of rotation; and a 2 nd cam surface provided on the one end side than the fulcrum,
the 1 st hook has: a 1 st inclined surface provided on the 2 nd hook side; and a 2 nd inclined surface provided closer to the one end portion than the 1 st inclined surface and on the 2 nd hook side,
when the 1 st hook disposed at the projecting position is moved to the retreat position, the 2 nd inclined surface abuts against the 2 nd cam surface, and the 2 nd hook is rotated in a direction of moving to the unlock position,
when the 1 st hook disposed at the retracted position is moved to the projecting position, the 1 st inclined surface abuts against the 1 st cam surface, and the 2 nd hook is rotated in a direction of moving to the lock position.
2. An electrical equipment enclosure comprising:
a body provided with a convex portion protruding from a back surface and a hook guide portion forming an attachment space between the hook guide portion and the convex portion, the attachment space being configured by a hat-shaped cross-sectional attachment rail having a convex side surface and a concave side surface and having flange portions at both ends;
a 1 st hook slidably provided in the hook guide portion, the 1 st hook being slidably movable between a projected position where one end portion is projected into the installation space and a retracted position where the one end portion is embedded in the hook guide portion; and
a 2 nd hook having a projection rotatably provided between a lock position where the projection projects to the installation space and an unlock position where the projection does not project to the installation space,
the convex portion has a return portion protruding to the mounting space,
the return portion restrains the end surface of the flange portion and the convex side surface of one end portion of the mounting rail,
the back surface of the body restrains the concave side surface of the flange portion at one end of the mounting rail and the concave side surface of the flange portion at the other end of the mounting rail,
the one end portion of the 1 st hook disposed at the projecting position restrains the convex side surface of the flange portion at the other end portion of the mounting rail,
the projection of the 2 nd hook disposed at the locking position restrains an end surface of the flange portion at the other end of the mounting rail,
the 2 nd hook is integrally formed with the main body.
3. The electrical equipment enclosure according to claim 1 or 2,
the interval between the returning part and the hook guide part is greater than or equal to the width of the mounting rail, and the interval between the one end part of the 1 st hook disposed at the projecting position and the returning part is narrower than the width of the mounting rail.
4. An electrical apparatus, characterized in that,
an electrical equipment housing having the structure defined in any one of claims 1 to 3.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2018/014823 WO2019193767A1 (en) | 2018-04-06 | 2018-04-06 | Electrical equipment case and electrical equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111937502A CN111937502A (en) | 2020-11-13 |
| CN111937502B true CN111937502B (en) | 2021-11-16 |
Family
ID=64899462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880092066.4A Active CN111937502B (en) | 2018-04-06 | 2018-04-06 | Electrical equipment housing and electrical equipment |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6444576B1 (en) |
| CN (1) | CN111937502B (en) |
| DE (1) | DE112018007441T5 (en) |
| WO (1) | WO2019193767A1 (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH064521Y2 (en) * | 1984-11-19 | 1994-02-02 | 三菱電機株式会社 | Rail attachment / detachment for reversible integrated electromagnetic contactor |
| DE3443540C1 (en) * | 1984-11-29 | 1986-04-24 | Christian Geyer GmbH & Co, 8500 Nürnberg | Device for fastening an electrical switchgear |
| JPS6281095A (en) * | 1985-10-04 | 1987-04-14 | 三菱電機株式会社 | Rail mounting device for electric equipment |
| JP2510504Y2 (en) * | 1993-12-01 | 1996-09-11 | 春日電機株式会社 | Fixing structure for electric equipment rail |
| DE10305931B4 (en) * | 2003-02-10 | 2007-11-08 | Hager Electro Gmbh | Device for fastening components of electrical metering and distribution devices to a carrier rail |
| FR2879833B1 (en) * | 2004-12-16 | 2008-06-13 | Schneider Electric Ind Sas | DEVICE FOR LOCKING AN ELECTRICAL APPARATUS ON A SUPPORT RAIL |
| ES2373985T3 (en) * | 2007-06-14 | 2012-02-10 | Bticino S.P.A. | MODULAR ELECTRICAL DEVICE WITH A HITCH DEVICE IN LANE. |
| CN101605439B (en) * | 2008-06-10 | 2012-03-14 | 鸿富锦精密工业（深圳）有限公司 | Sliding mechanism |
| JP5093541B1 (en) * | 2011-06-27 | 2012-12-12 | Ｎｅｃインフロンティア株式会社 | Control device for information processing device |
| JP2013215031A (en) * | 2012-04-02 | 2013-10-17 | Sankosha Corp | Device for mounting protective device on din rail |
| JP6300595B2 (en) * | 2014-03-26 | 2018-03-28 | 三菱電機株式会社 | Rail-mounted equipment |
| CN204616231U (en) * | 2015-05-05 | 2015-09-02 | 易春平 | A kind of grab |
-
2018
- 2018-04-06 CN CN201880092066.4A patent/CN111937502B/en active Active
- 2018-04-06 DE DE112018007441.2T patent/DE112018007441T5/en active Pending
- 2018-04-06 WO PCT/JP2018/014823 patent/WO2019193767A1/en active Application Filing
- 2018-04-06 JP JP2018551476A patent/JP6444576B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019193767A1 (en) | 2019-10-10 |
| JPWO2019193767A1 (en) | 2020-04-30 |
| DE112018007441T5 (en) | 2021-02-04 |
| CN111937502A (en) | 2020-11-13 |
| JP6444576B1 (en) | 2018-12-26 |
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