JP2013014420A - Elevator car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a lighting system of an elevator car compact.SOLUTION: The lighting system of the elevator car includes: a light source part 31 arranged along a ceiling 4a and to cover a portion of a long through-hole 11; a power supply part 71 disposed outside the elevator car and configured to be able to supply power to the light source part 31; an electric resistance part electrically connected to the power supply part 71 and the light source part 31, and adjusted so that a voltage acting on the light source 31 is at a predetermined value; and a radiator 21 fixed to a ceiling plate 4 such that a portion thereof is below the through-hole to secure the light source part 31, and configured to be able to dissipate heat from the light source part 31, or the like.

Description

  Embodiments of the present invention relate to an elevator car having a lighting device.

  The elevator car has a car frame, a floor panel, a plurality of side panels, and a ceiling panel. The floor board, the plurality of side boards and the ceiling board are assembled in a rectangular parallelepiped shape within the car frame. The floor board, the plurality of side boards and the ceiling board form a cab inside.

  A lighting device is attached to the ceiling plate. The illumination device has a light source and a cover that covers the light source. Light (illumination light) emitted from the light source passes through the cover and illuminates the car room (Patent Document 1).

JP 2007-182296 A

  In recent years, the height dimension of the outside (upper side) of the ceiling board is often restricted due to the height restriction of the building structure. For this reason, the magnitude | size of the area | region for installing an illuminating device is restrict | limited. If the size of the lighting device is reduced to cope with this limitation, light unevenness may occur when the interior of the car is illuminated with illumination light.

  On the other hand, when the amount of projection (downward projection) that extends to the inner side (lower side) of the ceiling board is increased to suppress light unevenness, passengers in the car room may feel as if they are being pressed. For this reason, it is also undesirable for the downward projecting amount to increase. Also, from the viewpoint of design properties, it is not desirable that the amount of downward protrusion is large.

  Moreover, it is necessary to attach the heat radiating part for radiating the heat generated from the light source or the like above the ceiling plate. However, the region for installing the heat radiating portion is also restricted as described above.

  An embodiment of the present invention is for solving the above-described problems, and an object thereof is to make a lighting device attached to an elevator car more compact.

  An elevator car according to an embodiment for achieving the above object includes a floor plate, a plurality of side plates arranged perpendicular to the floor plate, and arranged in parallel with each other above the floor plate, the floor plate and the plurality of the plurality of side plates. A ceiling plate formed with a side plate and formed with a plurality of through holes, and a lighting device attached to a ceiling surface of the ceiling plate facing the cabin. The apparatus is configured to be capable of supplying power to the light source unit arranged at least one light source unit disposed along the ceiling surface and partially covering the through hole, and disposed outside the cab. A power supply unit, an electrical resistance unit that is electrically connected to the power supply unit and the light source unit and adjusted so that a voltage acting on the light source unit has a predetermined value, and a part thereof is below the through hole. Fixed to the ceiling plate so that the Source unit by fixing the, and having a heat radiating portion which is radiated configured to be capable of heat the light source unit is emitted.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the cage | basket | car room in the elevator car of 1st Embodiment which concerns on this invention, and shows the state which looked at the car door from the back side. FIG. 2 is an elevational sectional view illustrating the outline of the illumination device of FIG. 1. FIG. 3 is a top view of FIG. 2. FIG. 4 is a partial cross-sectional view taken along arrows IV-IV in FIG. 3. FIG. 5 is an enlarged vertical sectional view of a portion V in FIG. 4. FIG. 4 is a schematic bottom view of the diffusion plate of FIG. 3. It is a fragmentary sectional view of the illuminating device of the elevator car of 2nd Embodiment which concerns on this invention. It is a fragmentary sectional view of the illuminating device of the elevator car of 3rd Embodiment which concerns on this invention.

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

[First Embodiment]
A first embodiment will be described with reference to FIGS. FIG. 1 is a perspective view showing a car room 7 in the elevator car of the present embodiment, and shows a state in which the car door 3 is viewed from the back side in the car room 7. FIG. 2 is an elevational sectional view schematically showing the illumination device 10 of FIG. In FIG. 2, the detailed shape of the illumination device 10 is omitted and schematically illustrated. In FIG. 2, illustration of the power supply unit 71 and the like on the upper surface of the ceiling plate 4 is omitted. FIG. 3 is a top view of FIG. 4 is a partial cross-sectional view taken along arrows IV-IV in FIG. FIG. 5 is an enlarged view of a portion V in FIG. FIG. 6 is a schematic bottom view of the diffusion plate 63 of FIG.

  First, the structure of the elevator car of this embodiment is demonstrated.

  The elevator car includes a floor plate 1, a side plate 2, a ceiling plate 4, a car door 3, and a lighting device 10 (FIG. 1). Although not shown in detail, this elevator car moves up and down in a vertically extending hoistway formed in the building to transport passengers.

  The car door 3 is configured to be openable and closable when the elevator car stops at a predetermined level.

  A plurality of side plates 2 are arranged perpendicular to the floor plate 1. These side plates 2 are provided with switches and the like (not shown) for passengers to register destination hierarchies and the like.

  The ceiling board 4 is arranged above the floor board 1 in parallel with each other. A cab 7 is formed by the ceiling plate 4, the floor plate 1 and the side plate 2. This cab 7 is a rectangular parallelepiped space.

  In the ceiling plate 4, two through long holes, that is, a first through long hole 11 and a second through long hole 12 are formed. These 1st and 2nd penetration long holes 11 and 12 are each rectangular shapes, and each longitudinal direction is mutually parallel and formed at intervals.

  The lighting device 10 is attached to the ceiling surface 4 a facing the cab 7 of the ceiling plate 4. Hereinafter, the configuration of the illumination device 10 will be described.

  The illuminating device 10 includes two light source parts, that is, a first light source part 31 and a second light source part 32, and two corresponding heat radiating parts, that is, a first heat radiating part 21 and a second heat radiating part 22. And a power supply unit 71 and an electric resistance unit 72. The lighting device 10 includes a fixing plate 50, a light guide plate 61, a reflection sheet 62, a diffusion plate 63, and a fixing elastic member 64.

  The fixing plate 50 is a metal member, and includes a flat plate portion 50a and two fixing portions, that is, a first fixing portion 51 and a second fixing portion 52.

  The flat plate portion 50a has a substantially rectangular shape, is parallel to the ceiling surface 4a, and is disposed below the ceiling surface 4a with a predetermined interval. The flat plate portion 50a is fixed to the ceiling plate 4 with a bolt 80 or the like at a predetermined position. At this time, the bolt 80 is attached so as not to be seen from the inside of the cab 7.

  The first fixing portion 51 is formed at the left end portion of the flat plate portion 50 a in FIG. 3 and has an upper presser portion 55 and a lower support portion 56.

  The upper presser portion 55 has a rectangular shape that is long in the left-right direction in FIG. 3, and two upper pressers 55 are formed at intervals in the vertical direction in FIG. 3. Each upper pressing portion 55 has a rectangular shape formed by cutting a part of the first fixing portion 51 in the right direction in FIG. 3, and is long in the left-right direction in FIG. Each upper pressing part 55 is bent to the upper surface (FIG. 4).

  The lower support portion 56 is a portion of the first fixed portion 51 where a plane parallel to the ceiling surface 4a is formed, and is integrally formed on the left extension of the flat plate portion 50a in FIG.

  Although details will be described later, the first fixing portion 51 is fixed by sandwiching the first heat radiating portion 21 by the upper pressing portion 55 and the lower support portion 56 (FIG. 4).

  The second fixing portion 52 is formed at the right end portion of the flat plate portion 50 a in FIG. 3, and has an upper pressing portion 55 and a lower support portion 56, similar to the first fixing portion 51. The second heat dissipating part 22 is sandwiched and fixed by the upper pressing part 55 and the lower support part 56.

  The first heat dissipating part 21 is a metal block member such as an aluminum alloy that is fixed to the first fixing part 51, and is arranged so that a part thereof is below the first through hole 11. The first heat radiating part 21 includes a heat radiating fin 26 and a light source support part 27 for fixing the first light source part 31 and the like.

  The first heat radiating portion 21 closes the first through-hole 11 so that it cannot be seen from the inside of the cab 7. Thereby, the designability can be ensured.

  Here, the position where the radiation fin 26 is formed will be described. The first heat radiating portion is formed with an inclined surface such that the top portion 25 is vertically upward. The top 25 extends in the longitudinal direction of the first through hole 11. That is, the top portion 25 is a ridge line extending in the vertical direction in FIG. 3, and inclined surfaces are formed on the left side and the right side in FIG. The inclined surface on the right side is configured to contact the upper presser portion 55 (FIG. 4). Radiating fins 26 are formed on the inclined surface on the left side. The radiating fin 26 is formed with irregularities perpendicular to the inclined surface. The radiating fins 26 can radiate heat generated by the first light source unit 31.

  The top of the first heat dissipating part 21 in this example is at substantially the same position as the height direction position (vertical direction position in FIG. 4) of the first through hole 11.

  The light source support portion 27 is formed below the heat radiating fins 26 and fixes the first light source portion 31, the light guide plate 61, the reflection sheet 62, the diffusion plate 63, and the like (FIG. 4). At this time, the light guide plate 61, the reflection sheet 62, and the diffusion plate 63 are fixed using a fixing elastic member 64 such as rubber. Details will be described later.

  The second heat radiating portion 22 is a metal member such as an aluminum alloy that is fixed to the second fixing portion 52, and is disposed so that a part thereof is below the second through-hole 12. Similar to the first heat radiating portion 21, the second heat radiating portion 22 includes a heat radiating fin 26 and a light source support portion 27 for fixing the first light source portion 31 and the like. Here, the second heat radiating portion 22 closes the second through-hole 12 so that it cannot be seen from inside the cab 7. Thereby, the designability can be ensured.

  The power supply unit 71 is fixed between the first and second through holes 11 and 12 on the upper surface (outer side) of the ceiling plate 4. The power supply unit 71 causes a current to flow through the first and second light source units 31 and 32 through the electric wiring 73 in the light source unit. Thereby, the 1st and 2nd light source parts 31 and 32 light-emit. Details will be described later. In FIG. 3 and FIG. 4, detailed illustration of the electric wiring 73 is omitted, and is schematically shown by a dotted line.

  The electric resistance unit 72 is electrically connected to the power supply unit 71 and the light source unit. In this example, the power supply unit 71 is integrated. In FIG. 3, detailed illustration is omitted, and a two-dot chain line is virtually shown. The electrical resistance unit 72 forms a single closed circuit together with the power source unit 71, the first light source unit 31, and the second light source unit 32. The resistance value of the electric resistance portion 72 is variable and is adjusted so that the voltage applied to the first and second light source portions 31 and 32 becomes a predetermined value.

  The first light source unit 31 is, for example, a linearly extending LED lighting device, extends in the longitudinal direction of the first through-hole 11 (the vertical direction in FIG. 3, the depth direction in FIG. 4), and the ceiling surface 4a. Arranged parallel to As described above, the first light source unit 31 is supplied with power from the power source unit 71 and emits light when current flows therein. At this time, the voltage applied to the first light source unit 31 is adjusted by adjusting the resistance value of the electric resistance unit 72.

  The first light source unit 31 is disposed so as to straddle the longitudinal direction of the first through-hole 11 and is attached to the light source support unit 27 of the first heat radiation unit 21.

  Similar to the first light source unit 31, the second light source unit 32 is an LED illuminating device that extends in a straight line. The second light source unit 32 is a longitudinal direction of the second through-hole 12 (vertical direction in FIG. 3, depth direction in FIG. 4). ) And parallel to the ceiling surface 4a. As described above, the second light source unit 32 is supplied with power so that a current flows from the power source unit 71 and emits light. Further, the second light source unit 32 is disposed so as to straddle the longitudinal direction of the second through-hole 12 and is attached to the light source support unit 27 of the second heat radiating unit 22.

  The light guide plate 61 is disposed in parallel to the lower surface of the flat plate portion 50a of the fixed plate 50 and has a rectangular shape. The light guide plate 61 is formed of, for example, an acrylic resin. Both ends (left and right ends in FIG. 3) of the light guide plate 61 are fixed to the light source support portions 27 of the first and second heat radiation portions 21 and 22, respectively. One side of the rectangular shape is arranged on the light source support part 27 side of the first heat radiation part 21 so as to face the first light source part 31. The part including the opposite sides is fixed to the light source support part 27 of the first heat radiation part 21.

  A side opposite to the side facing the first light source unit 31 faces the second light source unit 32 on the light source support unit 27 side of the second heat radiation unit 22. The part including the opposite sides is fixed to the light source support part 27 of the second heat radiation part 22. The light guide plate 61 can guide the light emitted from the first and second light source units 31 and 32 in the direction in which the surface of the light guide plate 61 spreads. In this example, the light guide plate 61 guides the light toward the center of the light guide plate 61. Shine.

  The reflection sheet 62 is attached to the upper surface of the light guide plate 61 so as to be sandwiched between the light guide plate 61 and the flat plate portion 50a. In this example, it is affixed on the upper surface of the light guide plate 61. The reflection sheet 62 reflects light guided by the light guide plate 61 downward.

  The diffusing plate 63 is a flat plate attached to the lower surface of the light guide plate 61 so as to face the cab 7. The light guided into the light guide plate 61 can be diffused so as to illuminate the interior of the cab 7.

  The diffusing plate 63 has a plurality of spherical lenses 63a formed on the surface (side surface of the cab) facing the cab 7 (FIG. 5). These spherical lenses 63a protrude toward the cab 7 side. In the side surface of the cab, the area occupied by the spherical lens 63a is formed so that the center is larger than the side closer to the first and second light source portions 31 and 32 (FIG. 6). In this example, the diameter of the spherical lens 63a formed in the center is larger than that formed on the end side.

  Thereby, the light emitted from the portion of the diffuser far from the first and second light source units 31 and 32 into the cab 7 and the light irradiated from a location close to the light source units 31 and 32 are uniformly distributed. Become.

  Here, a state in which the light guide plate 61, the reflection sheet 62, and the diffusion plate 63 are fixed by the light source support portion 27 formed in the first fixing portion 51 will be described.

  The light source support part 27 can accommodate the first light source part 31 and has a groove shape extending in the depth direction of FIG. 4. The light source support 27 is opened to the center side of the light guide plate 61 and the like, that is, to the left in FIG. The end portion of the lower support portion 56 of the first fixing portion 51 is inserted into the light source support portion 27.

  On the lower side of the lower support portion 56, the reflection sheet 62, the light guide plate 61, and the diffusion plate 63 are stacked in this order from the top to the bottom. At this time, end portions (left end portion in FIG. 4) of the light guide plate 61, the reflection sheet 62, and the diffusion plate 63 are in the light source support portion 27. In this example, the end portions of the light guide plate 61, the reflection sheet 62, the diffusion plate 63, and the lower support portion 56 are arranged so that the positions in the left-right direction in FIG.

  A fixing elastic member 64 is attached between the lower portion in the light source support portion 27 and the diffusion plate 63. Thereby, even if the deformation such as thermal expansion, specifically, the thickness of the light guide plate 61 or the like changes, the fixed state of the light guide plate 61 or the like is maintained by the elastic deformation of the fixing elastic member 64.

  The first light source unit 31 is fixed in contact with the end of the light guide plate 61. At this time, an electrical component (substrate 31 a) associated with the first light source unit 31 and the like is attached to the groove bottom side of the light source support unit 27.

  The light from the first light source unit 31 can be guided to the center (left side in FIG. 4) by the optical system using the light guide plate 61 or the like. For this reason, the thickness (the vertical dimension in FIG. 4) of the light guide plate 61 and the height dimension in FIG. 4 of the first light source unit 31 can be configured to be substantially the same. The amount by which the lighting device 10 protrudes can be suppressed.

  In addition, although detailed illustration is abbreviate | omitted, the 2nd light source part 32 side is also comprised similarly.

  Next, heat dissipation when the first and second light source units 31 and 32 emit light will be described.

  When power is supplied from the power supply unit 71, the first and second light source units 31 and 32 emit light. Thereby, the inside of the cab 7 is illuminated through the light guide plate 61, the diffusion plate 63, and the like.

  At this time, heat is generated from the first and second light source units 31 and 32. The heat generated from the first light source unit 31 is conducted to the first heat radiating unit 21. Further, the light is transmitted to the air in the light source support portion 27 and is transmitted to the first heat radiating portion 21.

  The first heat radiating portion 21 to which this heat is conducted is radiated from the heat radiating fins 26. At this time, heat flows upward by natural convection due to heat dissipation. In this example, the air flows toward the first through hole 11 along the inclined surface on which the radiation fins 26 are formed. Thereafter, heat is radiated from the first through hole 11 to the outside of the cab 7.

  The heat generated from the second light source unit 32 is radiated from the second through-hole 12 to the outside of the cab 7 in the same manner as the flow of heat generated from the first light source unit 31. In this example, since the site | part in which each radiation fin 26 of the 1st and 2nd thermal radiation parts 21 and 22 is formed is an inclination, heat | fever becomes easy to flow upwards.

  On the other hand, the heat transmitted to the light guide plate 61 and the like is transmitted between the ceiling plate 4 and the flat plate portion 50a through the flat plate portion 50a of the fixed plate 50, and from the first and second through long holes 11 and 12 to the cab 7 The heat is dissipated outside.

  Thereby, the heat generated from the first and second light source units 31 and 32 can be efficiently dissipated above the ceiling plate 4.

  As can be seen from the above description, according to the present embodiment, the lighting device 10 attached to the elevator car can be made more compact, and the heat generated from the lighting device 10 can be efficiently radiated. .

[Second Embodiment]
The elevator car of 2nd Embodiment is demonstrated using FIG. FIG. 7 is a partial cross-sectional view of the lighting device 10 for the elevator car according to the present embodiment. In addition, this embodiment is a modification of 1st Embodiment (FIGS. 1-6), Comprising: The same code | symbol is attached | subjected to the same part or similar part as 1st Embodiment, and duplication description is carried out. Omitted.

  The top portion 25 of the first heat radiating portion 21 of the present embodiment protrudes from the first through hole 11 above the ceiling plate 4. Although illustration is omitted, the top 25 of the second heat radiating portion 22 also protrudes from the second through-hole 12 above the ceiling plate 4.

  Thereby, while obtaining the same effect as 1st Embodiment, the heat | fever conducted through the 1st and 2nd heat radiating parts 21 and 22 can be directly radiated outside the elevator car.

[Third Embodiment]
The elevator car of 3rd Embodiment is demonstrated using FIG. FIG. 8 is a partial cross-sectional view of the lighting device 10 for an elevator car according to the present embodiment. In addition, this embodiment is a modification of 1st Embodiment (FIGS. 1-6), Comprising: The same code | symbol is attached | subjected to the same part or similar part as 1st Embodiment, and duplication description is carried out. Omitted.

  In the first heat dissipating part 21 of the present embodiment, the heat dissipating fins 26 described in the first embodiment form irregularities vertically. Thereby, the dimension of the 1st and 2nd penetration long holes 11 and 12 grade can be made small.

  This example is effective when the lighting device 10 that generates relatively little heat is used.

[Other Embodiments]
The description of the above embodiment is an example for explaining the present invention, and does not limit the invention described in the claims. Moreover, each part structure of this invention is not restricted to the said embodiment, A various deformation | transformation is possible within the technical scope as described in a claim.

  For example, you may arrange | position so that the upper end of the heat-transfer fin of the 1st thermal radiation part 21 of 3rd Embodiment may jump out of the outer side of the cage room 7 from the 1st penetration long hole 11. FIG.

  Further, the electric resistance unit 72 may be configured separately from the power source unit 71.

  Moreover, although the light source part and the heat radiating part were described in two examples, one side may be sufficient. Moreover, it is also possible to set it as 3 sets or 4 sets.

  Moreover, the 1st and 2nd light source parts 31 and 32 may use not only an LED lighting fixture but another light source.

DESCRIPTION OF SYMBOLS 1 ... Floor board, 2 ... Side board, 3 ... Car door, 4 ... Ceiling board, 4a ... Ceiling surface, 7 ... Car room, 10 ... Illuminating device, 11 ... 1st penetration long hole, 12 ... 2nd penetration long hole , 21 ... 1st heat radiation part, 22 ... 2nd heat radiation part, 25 ... Top part, 26 ... Radiation fin, 27 ... Light source support part, 31 ... 1st light source part, 31a ... Board | substrate, 32 ... 2nd Light source part 50 ... fixed plate 50a ... flat plate part 51 ... first fixed part 52 ... second fixed part 55 ... upper pressing part 56 ... lower support part 61 ... light guide plate 62 ... reflective sheet , 63 ... Diffuser, 63a ... Spherical lens, 64 ... Elastic member for fixing, 71 ... Power supply part, 72 ... Electric resistance part, 73 ... Electric wiring, 80 ... Bolt

Claims (8)

Floor boards,
A plurality of side plates arranged perpendicular to the floor plate;
A ceiling plate that is disposed in parallel with each other above the floor plate, forms a cab enclosed by the floor plate and the plurality of side plates, and has a plurality of through holes;
A lighting device attached to a ceiling surface facing the cab of the ceiling plate;
Have
The lighting device includes:
At least one light source part arranged so as to be along the ceiling surface and partially close the through hole;
A power supply unit arranged outside the car room and configured to supply power to the light source unit;
An electric resistance unit that is electrically connected to the power source unit and the light source unit and adjusted so that a voltage acting on the light source unit has a predetermined value;
A heat dissipating part that is fixed to the ceiling plate so that a part thereof is below the through hole, fixes the light source part, and is configured to dissipate heat generated by the light source part;
An elevator car characterized by having an elevator.   The elevator car according to claim 1, wherein the heat dissipating part has an uneven part formed below the through hole.   3. The elevator car according to claim 2, wherein the heat radiating portion is formed with an inclined surface having a vertex in a vertically upward direction, and the uneven portion is formed on the inclined surface.   The elevator car according to claim 2 or 3, wherein a top of the inclined portion passes through a through hole and protrudes above the ceiling plate. In the light source unit, the electric resistance unit, and the power source unit, one closed circuit is formed,
The elevator car according to any one of claims 1 to 4, wherein the electric resistance portion has a variable resistance value.   6. The heat radiating portion is fixed by a metal fixing plate parallel to each other on the ceiling surface and spaced downward from the ceiling surface by a predetermined distance. The elevator car according to one item. The light source part is arranged in parallel with the fixed plate, is attached to the fixed plate in a rectangular shape via the heat radiating part, and faces each of the opposing sides, and emits light emitted from the light source part. A light guide plate capable of guiding light in the direction;
A reflective sheet that is attached to the upper surface of the light guide plate so as to be sandwiched between the light guide plate and the fixed plate, and reflects light guided by the light guide plate downward;
A flat plate attached to the lower surface of the light guide plate so as to face the car room, and a diffusion plate formed so as to illuminate the car room with light guided into the light guide plate;
The elevator car according to any one of claims 1 to 6, wherein the elevator car is provided.   The diffusing plate is configured such that a plurality of spherical lenses projecting from a side surface of the cab facing the cab are formed, and an area occupied by the spherical lens is configured to be larger at the center than at the end. The elevator car according to any one of claims 1 to 7.

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