JPH06101242B2 - lighting equipment - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluorescent lamp including a light diffuser, and more particularly to a fluorescent lamp including an air diffuser such as used in a vehicle. It is a thing.

(Prior Art) Many of the existing public transport vehicles use outdated fluorescent light fixtures. These fixtures were mounted on the vehicle many years ago when the vehicle was manufactured, at which time there was little interest in providing fluorescent light fixtures with appropriate light diffusers. These appliances are also required to measure the air diffusion and circulation around the fluorescent lamp for the purpose of cooling and natural cleaning. Considering the realization of equipment that is easy to maintain and equipment that is not easily broken, which is another requirement, many equipment replacements are necessary to satisfy all desired conditions, so designing such equipment and dissipator Requires caution.

One of the special applications of the improved design is existing fluorescent lighting fixtures in the London Underground vehicle that need to be replaced. The London Underground vehicle is equipped with open fluorescent lighting fixtures arranged in two parallel lines along the ceiling. The instrument is not fitted with a diffuser of any kind and the fluorescent tubes inside the instrument are easily destroyed by accident or tampering. Moreover, the bright light of the fluorescent tube is uncomfortable, resulting in a light intensity that is too intense for ordinary reading. Lighting effects generally lack aesthetics. Also, stable resistors for fluorescent tubes are generally difficult to maintain.

Other older vehicle lighting systems also do not incorporate the air circulation system of the vehicle in which they are used.

OBJECT OF THE INVENTION The present invention provides a fluorescent lamp fixture with an improved light diffuser.

The present invention also provides an advanced light diffuser for fluorescent light fixtures that also functions as an air diffuser.

The present invention also provides a diffuser that is both a light diffuser and an air diffuser for fluorescent lamp fixtures that is easy to maintain.

The present invention also provides a diffuser that is both a light diffuser and an air diffuser for a fluorescent lamp fixture that is not easily destroyed by mischief.

Another object of the present invention is to provide a diffuser that is both a light diffuser and an air diffuser for a fluorescent lamp fixture that is naturally cleaned.

Still another object of the present invention is to provide a fluorescent lamp apparatus having a diffuser which is also used as a light diffuser and an air diffuser for use in a public transportation vehicle incorporating a handrail integrated with the fluorescent lamp apparatus. Especially.

Another object of the present invention is to provide a diffuser that employs an extruded structure and that serves as both a light diffuser and an air diffuser for a fluorescent lamp fixture.

Another object of the present invention is to provide a fluorescent lamp apparatus having a diffuser which is also used as a light diffuser and an air diffuser used in a passenger compartment of a vehicle, and also improves the air mixing and temperature equalization in the passenger compartment. Is to measure.

The following description and the accompanying drawings are provided to aid the understanding of the present invention, the scope of which is set forth in the appended claims.

(Example) FIGS. 1 and 2 show a subway vehicle 10 in which a fluorescent light fixture 11 according to the present invention is installed. The fixture is mounted near the vertical support posts 13 on the vehicle ceiling 12. The device 11 is designed so that the same compartments are lined up, and each compartment can accommodate one 120 cm fluorescent tube (T12 size). Each compartment has a handrail 21 for passengers to grasp, and the row of compartments arranged in parallel on the left and right is one continuous railing on each side of the vehicle.

FIG. 3 shows details of the fluorescent lamp fixture section 11. Each compartment has an instrument base 15 that is fixed to the ceiling 12 of the subway vehicle in a manner not shown. Radiator panel on base 15
14 is installed. The panel 14 is mounted substantially parallel to the base 15. The diffuser panel 14 has a frame 16 which supports a majority of the longitudinal elements 17.

The longitudinal element groups 17 are arranged at intervals, preferably parallel to each other. The elements are made of transparent or translucent material to refract, reflect, and dissipate the light that strikes the elements generated by the fluorescent tubes mounted above the panel. FIG. 3 shows an array of hollow glass tubular elements 17. Tempered glass is desirable for this purpose.

Depending on the application, it may be desirable to use a group of elements having different cross-sectional shapes. FIG. 6 shows an embodiment of a diffuser panel 11 'having a triangular section and a group of rectangular section elements 17' in a single panel. Elongated element in this figure
A fluorescent tube 19 is shown above 17 '.

The materials that can be used for this type of panel may be selected depending on the desired light dissipation properties and factors such as cost, ease of manufacture, and fragility. Transparent or translucent plastic materials, in particular clear acrylic plastics sold under the trademark "LUCITE" and clear polycarbonate plastics sold under the trademark "LEXAN" are within the scope of the claims. Totally reflective or totally absorptive materials such as extruded, frosted or anodized aluminum rods can also be used.

The shape and spacing of the longitudinal elements are designed to allow dust and dirt to fall from the panel when air is not forced into the panel. When air is forced into the panel in the manner described below, the panel and longitudinal elements also function as air diffusers. The dissipator panel 14 is attached to the base 15 at both ends of the frame 16. There is a hinged support 21 at one end. The other end of the panel is supported by one or more panel latches (latches) 22. The preferred arrangement requires two panel latches per compartment. The latch 22 includes a portion fixed to the base, a portion fixed to the frame 16 of the panel, and a portion fixed to the frame 16 of the panel. In order to prevent the panel latch from being opened improperly, a pair of keyed panel latch locks 23 are provided for each section. Therefore, a special tool is needed to open the device.

The hinge type support 21 has two functions. Stake
When 22 is released, the panel rotates about the hinge axis of the support and descends. In this preferred embodiment,
Handrails are located along the axis of the hinge for the passenger to grab.

A rotation limiting mechanism 24 is provided to prevent the panel from suddenly descending to the lowermost end when the latch is released. The mechanism includes a hinge support 25 fixed to the base and cooperating with the rod 25a. A cam element 2 is attached to the other end of the rod 25a.
6 is installed. A cam groove 27 is provided inside the cam guide attached to one end of the frame 16 of the panel. The shape of the cam groove is such that the cam 26a is 24 'when the panel is opened.
The shape is such that it moves a little to the position. In order to fully lower the panel, it is necessary to lift the panel slightly and move the cam 26 along the cam groove 27 to the position 27 ″.

A fluorescent tube 19 is attached, and a fluorescent tube mounting member 18 is provided for making electrical connection of each device. These members 18 are preferably mounted end to end on the panel frame 16 so that the fluorescent tubes are located substantially parallel to the center of the longitudinal member group 17.

A fluorescent ballast resistor 20 is also installed in the fluorescent lamp fixture, preferably at one end of the panel frame. It is possible to attach the ballast resistor 20 and the fluorescent tube 19 to the base 15, but if they are attached to the panel frame, those elements can be easily reached by the service personnel when the panel is lowered, so that maintenance is easy. It has a great advantage. This downward movement is shown in phantom in FIG. The panel 14 first rotates in the "A" direction to the 14 'position and finally to the 14' position. In this final position,
Easy access to fluorescent tubes and ballast resistors.

The relative position of the fluorescent tube 19 and ballast resistor 20 with respect to the frame 16 is shown in the top view of the panel and apparatus shown in FIG. The ballast resistor 20 is attached to one end of the frame 16.
Fluorescent tube mounting members 18 are attached to the ends of the frame 16 so that the fluorescent tube 19 fits between them. The other elements are numbered the same as those shown in FIG.

The main feature of the fluorescent lamp fixture 11 is that a single or a plurality of nozzles 28 are provided. A nozzle 28 is provided in the base 15, the inlet of the nozzle is above the base and the outlet 30 of the nozzle is below the base. The cross-sectional area of the nozzle inlet is larger than that of the outlet, and the cross-sectional area gradually decreases from the inlet to the outlet.

When the high-speed airflow 31 is supplied in the direction of the arrow 31, the nozzle outlet 30
A negative pressure area is generated on the lower side. Air from the underside of the device flows through the device 32 by the suction action of the negative pressure and merges with the high velocity air stream at the nozzle exit. This effect is commonly known as the Venturi effect. Therefore, the air circulation is improved and the temperature distribution inside the vehicle is made uniform. The high-speed airflow may be supplied by heating or cooling the air circulating in the vehicle.

The nozzle 28 thus merges the air from within the passenger compartment with the air emanating from the central air heating or cooling device. The coalesced mixed air is conditioned in the desired direction by properly positioning the nozzle. The induced vertical flow cleans the dust in the optical path and keeps the gaps between the longitudinal emissive elements from being filled with dust.

The instant release type panel latch 22 preferred in FIGS. 4A and 4B.
Indicates. Fig. 4A shows the state where the latch is closed. base
The hook closing member 35 attached to 15 is the panel frame 16
Engages with a protrusion that is part of the base member attached to the.
The closing member 35 is held in this state by the latch fixing arm 33. The latch fixing arm 33 has a lock 23. Use the key to rotate the locking part 23 and
33 is raised and the closing member 35 is released. The spring 34 is for ensuring the release. When the latch is opened by this spring, the panel descends to the state shown in Fig. 4B.

The diffuser panel frame 16 is preferably made of aluminum.
Extrusion is the preferred method of manufacturing the frame.
Each part of the frame may be polished or anodized to obtain a good metallic luster, if necessary.

The fluorescent light fixture of the present invention includes a panel that acts as both a light and air diffuser. Air flows around the longitudinal elements that are spaced within the panel for cooling and natural cleaning purposes. Light passes through and around the longitudinal elements, which are preferably transparent or translucent.

The nozzle, which is part of the device, has the effect of allowing air to rise through the device and promote mixing and temperature averaging when combined with forced heated or cooled air. It is also effective in cleaning equipment.

The mechanical arrangement of the device and the panel facilitates maintenance (eg replacement of the fluorescent tube) simply by lowering the panel. This arrangement also prevents damage to the fluorescent tube due to mischief. The handrails associated with the panel are particularly useful for appliances for public transport vehicles.

FIG. 7 shows another embodiment of the present invention. In this arrangement, fluorescent lighting fixtures extend across the entire vehicle ceiling. A fluorescent tube 103 is attached to each end of the ceiling parallel to the longitudinal direction of the vehicle. Center fluorescent tube 10 parallel to left and right fluorescent tubes
3'is installed.

The diffuser for the instrument consists of a central partial panel 102 'located below the central fluorescent tube 103' and two lateral panels 102 located below the fluorescent tube 103 mounted on both sides. Central part 10
The 2'has a plurality of holes, which may be of any well-known shape such as a lattice or a tube. The central portion 102 'acts as a light and air diffuser and is described in more detail below. The side panels 102 disposed below the fluorescent tubes on both sides are generally transparent or translucent panels and have no holes inside.

The entire diffuser has a single-element structure, and by opening a latch 108 provided so as to be hidden at one end, it is lowered about a hinge point 107 as an axis for cleaning the fixture and replacing the fluorescent tube.
It is desirable to attach the fluorescent tube to the back of the diffuser. The position where the diffuser is lowered is shown by a broken line 102'A.

In this arrangement, a pair of nozzles 104 is shown.
These nozzles are mounted within the ceiling 100. Each nozzle 1
04 is a narrow passage 105 that goes from the space above the ceiling 100 (below the roof 101) to the side wall of the vehicle through the side edge opening between the base and the panel edge, and the air in the center of the equipment to the passage 105. It comprises a narrower passageway 106 that leads.

When a high-speed airflow (preferably cooler) is passed through the passage 105,
The warm air due to the suction effect is drawn through the central portion of the diffuser into the narrower passageway 106. Air occurs on both sides of these vehicles and air circulates inside the vehicles. This circulation effect cleans the diffuser and the fluorescent tube.

FIG. 8 also shows a kind of fluorescent lamp fixture equipped with a fluorescent lamp and an air diffuser, which is an embodiment similar to FIG. The diffuser consists of two side panels 112 and a central portion 118. Three fluorescent tubes 113 are attached in parallel. These fluorescent tubes are preferably mounted on top of the diffuser.
The latches 120 and 121 are released, and the diffuser is rotated downward about the hinge point 119 as an axis, so that the fluorescent tube can be replaced and the instrument can be cleaned.

The center 118 of the diffuser is preferably a grid or tubular structure and the side panels 112 are transparent or translucent panels.

Nozzles 114 are located on both sides of the instrument. Each nozzle has a primary air passage 116 that is narrow from the entrance adjacent to the ceiling 110 to the exit, with the exit facing the side of the vehicle. A cold high-speed airflow flows into the entrance through a hole provided in the ceiling 111. The wing-shaped element 115 forms the lower part of the primary air passage and also forms part of a narrower secondary air passage 117. Also in this structure, the high-speed airflow passing through the primary passage 117 sucks air from the central portion due to the suction effect and causes air circulation in the device.

FIG. 9 shows another embodiment in which the central part of the diffuser is fixed to the support structure 123. There is a latch mechanism 122 at each end of their support structure, and the diffuser panels on both sides can rotate and descend about a hinge 121.

While the above description and drawings illustrate preferred embodiments of the present invention, those skilled in the art will appreciate that various changes and modifications can be made without departing from the original intention and scope of the present invention. Ah

(Effects of the Invention) According to the present invention, the above and other objects are achieved by a fluorescent lamp fixture comprising a base and a light diffusion panel mounted on the base, and having a fluorescent tube mounting electrical connection means. The fluorescent tube mounting electrical connection means are located on the panel surface facing the base. The panel is perforated with holes to circulate air to cool the equipment and clean the fluorescent tubes and panels. The instrument is provided with a hinge that is attached to the base and supports one side of the panel, and the panel can be rotated about the hinge. The instrument is also provided with a releasable latch having a portion attached to the base and a portion attached to the other end of the panel. When the latch is released, the panel can be rotated and lowered around the hinge for cleaning and maintaining the device.

Further, according to the present invention, a fluorescent lamp fixture having a light and air diffuser comprises a base, a light and air diffuser panel, and a nozzle incorporated in the base. The light and air diffuser panel is mounted to the base and has fluorescent tube mounting electrical connection means. The fluorescent tube mounting electrical connection means are located on the panel surface facing the base. The panel is perforated to allow air to circulate through the panel to cool the equipment and clean the panel. The nozzle has an inlet on the surface of the base opposite to the side facing the panel and an outlet on the surface of the base on the side facing the panel. The nozzle outlet guides the air coming out in a direction substantially parallel to the base. The nozzle draws air through the panel using the suction effect of the air flow passing through the nozzle.

Further, according to the present invention, the diffuser of a fluorescent light fixture comprises a frame and a group of longitudinal elements supported by the frame at intervals with each other, and some or all of these elements are arranged to prevent the light impinging upon them. Made of materials that dissipate.

Furthermore, according to another aspect of the present invention, one or more fluorescent tubes, a diffuser having a hole in the center, a pair of translucent side panels arranged below the fluorescent tubes, and a diffuser A fluorescent light fixture for a passenger vehicle comprising a nozzle having a primary passageway and a narrower secondary passageway disposed above the vehicle.
The primary passage has an inlet for introducing a high-speed airflow facing away from the diffuser and an outlet facing the side of the vehicle. The primary passage gradually narrows from the entrance to the exit. The secondary passage has an inlet directed to the central portion of the diffuser and an outlet forming a confluence with the primary passage, and the high-speed airflow introduced into the primary passage allows air to pass through the central portion of the diffuser to the secondary passage. Suck into the next passage.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a railway vehicle equipped with the fluorescent lamp fixture of the present invention. FIG. 2 is a sectional view taken along line 2-2 in FIG. 1, and particularly shows the arrangement of instruments in the vehicle. FIG. 3 is an enlarged sectional view taken along line 3-3 in FIG.
3 shows details of the fluorescent lamp fixture of the present invention, including the position of the diffuser panel when opened for maintenance. FIG. 4A and FIG. 4B are views also showing a partially broken inside along 4A, B-4A, B in FIG. 3, respectively showing a state where the panel latch is applied and a state where the panel latch is removed. Corresponding to. FIG. 5 is an enlarged bottom view of the diffuser panel. FIG. 7 is a cross-sectional view of another embodiment of FIG. 6, showing a group of longitudinal emissive members with various cross-sections. Figures 7,8,9 show cross-sections of three other embodiments having descendable panels and nozzle arrangements for circulating air within the device. 10 …… Vehicle, 11 …… Fluorescent light fixture 12 …… Ceiling, 13 …… Vertical support pillar 14 …… Panel, 15 …… Base 16 …… Panel frame 17 …… Longitudinal element 18 …… Fluorescent tube mounting member , 19 ...... Fluorescent tube 20 ...... Stabilizing resistor, 21 ...... Handrail 21 ...... Support, 22 ...... Latch 23 ...... Locking part, 24 ...... Rotation limiting mechanism 25 ...... Hinge support, 25a ...... Rod 26 ... … Cam element, 27 …… Cam groove 28 …… Nozzle, 30 …… Nozzle outlet 31 …… High-speed air flow, 32 …… Apparatus 33 …… Latch fixing arm 34 …… Spring 35 …… Hook shutoff member 36 …… Projection , 100 ... Ceiling 101 ... Roof, 102 '... Central panel 103 ... Left and right fluorescent tubes, 103' ... Central fluorescent tube 104 ... Nozzle, 105 ... Primary passage 106 ... Secondary passage, 107 …… Hinge point 108 …… Latch, 110 …… Ceiling 111 …… Ceiling, 112 …… Side panel 113 …… Fluorescent tube, 114 …… Nozzle 115 …… Wing Element 116 ...... primary air passage 117 ...... secondary air passage, 121 ...... hinge 122 ...... latch mechanism, 123 ...... support mechanism

Claims (17)

[Claims] 1. A base in which a space through which a high-speed air current flows is defined, and a light diffusion panel having an opening, a space is formed between the base and the space, and the space is formed between the base and the side edge of the panel. A light-dissipating panel communicating with the room through a side edge opening between them, a lamp arranged in a space between the base and the light-dissipating panel, a means for mounting the panel and the lamp and the base together, an opening of the panel The nozzle means extends from the base, has an inlet and an outlet, and has a cross-sectional area gradually increasing from the base-side inlet to the outlet. A luminaire comprising a narrowed nozzle, the nozzle being inclined obliquely downward so as to allow air to flow toward the side edge opening. 2. The air flow is divided in both directions so that the nozzle means for sucking indoor air from the opening of the panel and generating a bench lily action blows out the air from the side edge openings on both sides. Lighting equipment. 3. The base has first and second nozzles,
Each of the nozzles has an inlet and an outlet, and each of the nozzles has a cross-sectional area gradually narrowed from the base side inlet to the outlet, and the first nozzle has an air flow from the inlet to the outlet on one side edge opening. Tilt diagonally downward so that it flows toward
3. The luminaire according to claim 2, wherein the second nozzle is inclined obliquely downward so that an air flow from its inlet to its outlet flows toward the other side edge opening. 4. The luminaire according to claim 1, wherein the light-diffusing panel comprises a plurality of light-diffusing rods, which are substantially parallel to and spaced from each other. 5. At least one of said rods is made from a material selected from the group consisting of glass, plastic, tempered glass, and extruded aluminum with a reflective surface and plastic. Item 4. A lighting device according to item 4. 6. The luminaire according to claim 4, wherein each of the rods has a different cross-sectional shape. 7. The luminaire of claim 1, further comprising means secured to the base and supporting a first side edge of the panel, the panel being rotatable about hinge means. A latch means having a first portion fixed to the base and a second portion fixed to and supporting a second side edge of the panel, the panel hinged when the latch means is opened. 2. A luminaire according to claim 1, characterized in that it can be lowered by rotating it around the means so that the luminaire can be maintained and cleaned. 8. A base of the device is adapted to be attached to a ceiling of a passenger vehicle, and the hinge means has an elongated shaft.
8. The luminaire of claim 7, wherein the luminaire further comprises a handrail positioned along the axis for a passenger to grab. 9. The method of claim 7 wherein the latch means includes a lock which requires a key tool to release.
The described lighting equipment. 10. The luminaire according to claim 7, wherein the latching means is an instant release type. 11. The luminaire according to claim 7, further comprising a release latch that prevents the panel from rotating beyond a predetermined range. 12. The luminaire of claim 7, wherein said release latch includes means for selectively rotating said panel in one of two different positions. 13. The nozzle means is combined with the base means, the nozzle means having an inlet on the base side facing the panel and an outlet on the panel side facing the base, the nozzle outlet from which 2. A luminaire as claimed in claim 1, characterized in that the air flow is emitted substantially parallel to the base, and the nozzle means is adapted to produce a suction action in which air is sucked from the panel. 14. A luminaire as claimed in claim 1, characterized in that said nozzle means is combined with said base means such that the air flow created by said nozzle means draws air from said panel. 15. The luminaire according to claim 14, wherein the base is attached to a vehicle compartment, and high-speed airflow is generated by forced air circulation in the vehicle compartment. 16. The nozzle means has an inlet on the side of the base facing the panel and an outlet on the side of the panel facing the base, from which the nozzle outlet emits an air stream substantially parallel to the base. 15. The lighting device according to claim 14, wherein the lighting device is configured to be. 17. The luminaire of claim 1 including means for attaching a fluorescent tube ballast to the panel.