JP4196644B2 - Ballast-mounted lighting fixture - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a ballast-equipped lighting fixture for a lighting fixture.
[0002]
[Prior art]
Conventional ballast-mounted lighting fixtures have been developed mainly for lighting in factories, etc., and have a limited variety of products and are practically practical.
Compared to copper-iron ballasts that were mainly used in conventional ballast-mounted lighting fixtures, electronic ballasts have advantages such as no flickering of the lamp, stable light color of the lamp, and small and light weight. There is. In recent years, electronic ballasts have been frequently used also in the field of HID lamp appliances, but the types of electronic ballast-equipped appliances are very limited. Therefore, it was common to install the electronic ballast and the lighting fixture separately.
As a conventional technique, a ballast has been arranged in a non-movable state directly above a lighting fixture lamp as disclosed in Japanese Patent Application Laid-Open No. 2000-285725.
[0003]
[Problems to be solved by the invention]
However, according to the prior art, there are the following problems.
Conventional ballast-mounted lighting fixtures have been unpopular in places of use such as commercial facilities where importance is placed on the appearance due to the size, weight, and design of the fixtures.
[0004]
Further, according to Japanese Patent Laid-Open No. 2000-285725, this luminaire cannot be used in a place where it is desired to suppress overhanging from the ceiling because the ballast is positioned vertically above the luminaire lamp body in a non-movable state. It was a structure.
[0005]
In addition, when electronic ballasts or copper-iron ballasts are placed near lighting fixtures, ballasts are installed on the back of ceilings if they are stuck ceilings, but it is necessary to provide an opening for ballast inspection. When there was no material and the lighting fixtures were installed directly on the building frame, the ballasts were exposed and there was a problem of poor appearance.
[0006]
Also, if the ballast is placed away from the luminaire and concentrated in one place, facility management becomes easier, but in the case of an electronic ballast, if the wiring length between the electronic ballast and the fixture is long, harmonics and noise current There is a problem that the measures of If a copper-iron ballast is unavoidably used, lamp flickering and variations in lamp light color will increase. Further, since the copper-iron type ballast has a mass of 5 to 10 kg or more, there is a drawback that the strength of the mounting portion is required and the installation place is limited. When the ballast and the luminaire are independent, it is necessary to perform wiring work between the ballast and the luminaire.
[0007]
Furthermore, since the electronic ballast uses a semiconductor, it is vulnerable to high temperatures compared to the copper-iron ballast, which has been an obstacle when the electronic ballast is placed in and built in a lighting fixture.
[0008]
The present invention has been made in view of the above contents, and by arranging a small and light electronic ballast so as to be rotatable with respect to a lighting fixture, wiring can be performed while enjoying the advantages of the electronic ballast regardless of the installation location. There is no need to worry about the length, and by rotating the ballast in the horizontal direction, the overhang of the appliance from the ceiling can be reduced, and the influence of heat on the electronic ballast can be suppressed. Therefore, it aims at providing the lighting fixture provided with the advantage that the wiring construction between a ballast and a lighting fixture is unnecessary.
[0009]
[Means for Solving the Problems]
The invention according to claim 1 comprises a reflector having an opening on the bottom surface, a holder having a lamp socket in which a lamp is mounted, and an electronic ballast. The electronic ballast, the holder and the reflector It is a ballast-type lighting fixture that is installed by exposing it directly from the mounting surface such as the ceiling, and the holder supports the reflector, and the rotatable support arm sandwiches the holder from the left and right. The other end of the electronic ballast, which has a longitudinal direction and has a mounting surface on each of the outer surface and one end, is supported on the support arm, and the electronic ballast is horizontally placed on the side of the holder. If it is located, the outer metal mounting surface can be directly attached to the mounting surface, or if it is positioned vertically upward, the one end metal mounting surface can be directly attached to the mounting surface. It is characterized by comprising.
[0010]
According to the first aspect of the present invention, the height of the entire configuration of the fixture can be suppressed by rotating and arranging the longitudinal direction of the electronic ballast laterally on the side of the holder of the lighting fixture. It can be used in places where you want to reduce overhang. Furthermore, when it is desired to perform the construction away from the mounting surface, the longitudinal direction of the electronic ballast is rotated and arranged directly above the holder of the lighting fixture.
[0011]
The invention according to claim 2, wherein the electronic ballast constitute the engaging groove in a portion of the outer surface of fitting the adapter that protrudes from the support arm in the engaging groove, so as to hook the luminaire Constitute.
[0012]
According to the second aspect of the present invention, a hooking groove is formed on a part of the outer surface of the electronic ballast, and an adapter protruding in a substantially L shape protruding from the support arm is inserted into the hooking groove and then slid to slide. The holder of the instrument is easily and reliably supported on the electronic ballast. In addition, the hook of the lighting fixture can be easily attached to the electronic ballast by forming a hooking groove in the support arm and inserting the adapter protruding into the hooking groove into a substantially L-shape from the support arm mounting surface of the electronic ballast. It is definitely supported.
[0013]
The invention according to claim 3, wherein the electronic ballast to the support arm mounting surface provided on the other end of the spring of the engaging projection formed of plate-shaped bent piece projecting Type freely formed, the plate-like folding A supporting arm having an adapter is hooked and supported from the side direction of the piece, and the electronic ballast and the supporting arm are configured to be locked.
[0014]
According to the third aspect of the present invention, in the case where the spring-like hooking projection made of a plate-like bent piece is formed on the support arm mounting surface of the electronic ballast so as to protrude freely, the support arm is hooked on the electronic ballast. In the state of being stopped and supported, the hooking protrusion is inserted and fitted into the hooking protrusion fitting hole formed in the support arm. Even if a force is applied in a direction to release the state in which the support arm is latched and supported by the electronic ballast, it is stopped by the latching protrusion.
Further, in the case where a springy engaging protrusion made of a plate-like bent piece is formed on the support arm so as to be freely projectable, the engaging protrusion is not attached to the electronic ballast in a state where the support arm is hooked and supported by the electronic ballast. It is inserted and fitted into a hooking projection fitting hole formed on the support arm mounting surface. Therefore, even if a force is applied in a direction to release the state where the support arm is hooked and supported by the electronic ballast, the hook is stopped by the hooking protrusion.
For this reason, even if a vibration due to an earthquake or the like is added, the state in which the hook is supported is not easily released.
[0015]
According to a fourth aspect of the invention, in the interior of the electronic ballast, the low heat temperature components in the support arm mounting surface side of the electronic ballast when the electronic ballast of the lateral and disposed below the electronic ballast When the electronic ballast is in the vertical orientation, the electronic ballast is arranged so as to be below the electronic ballast.
[0016]
According to the invention of claim 4, when the longitudinal direction of the electronic ballast is disposed laterally on the side of the holder, the component having a low heat-resistant temperature is disposed on the support arm mounting surface side in the electronic ballast, and The electronic ballast is arranged below when the upper and lower parts are divided. Here, even when the electronic ballast is arranged in the upper part of the holder and the longitudinal direction of the electronic ballast is vertically oriented, the parts with low heat resistance temperature are arranged below the electronic ballast divided into two parts, the electronic ballast Regardless of whether the longitudinal direction is used vertically or horizontally, a component with a low heat-resistant temperature is always placed below the electronic ballast as a whole, and the component with a low heat-resistant temperature is protected from the heat generated by the electronic ballast itself. It is configured as follows. For this reason, the heat resistant temperature is protected from the heat generated by the electronic ballast itself.
[0017]
In the invention of claim 5, wherein the electronic ballast multiple groove-like heat radiation fins are formed in the longitudinal direction of the outer side surface of the case which is arranged vertically in the longitudinal direction of the electronic ballast above the holder The heat radiating fins on the outer surface of the electronic ballast are configured to be vertical.
[0018]
According to the fifth aspect of the present invention, when the radiating fin formed in the longitudinal direction of the electronic ballast is oriented vertically, heat is released from the radiating fin, and convection occurs due to the heat. Since the convection is smoothly performed in the vertical direction, the cooling of the electronic ballast is promoted, and the electronic ballast is protected from a high temperature.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to FIGS. 1 to 5, reference numeral 11 denotes a holder that supports the reflector 12 and has a lamp socket 13 mounted therein. 14 is a support arm rotatably supported by the holder 11 and provided with a latching projection fitting hole 15 on the ballast mounting surface, and the support arm is arranged so as to sandwich the holder 11 from the left and right as shown in FIG. The support arms are connected on the ballast mounting surface side. Reference numeral 16 denotes an adapter that protrudes from the ballast mounting surface of the support arm, and is inserted into the engaging groove 23 provided on the mounting arm mounting surface of the electronic ballast and then slid to easily support the support arm 14 to the electronic ballast 21. Make sure to support it.
[0020]
Although the lamp socket 13 and the electronic ballast 21 need to be electrically connected, an electric wire drawn from the lamp socket 13 through the support arm 14 and the ballast mounting surface, and an electric wire drawn from the electronic ballast 21 support arm mounting surface. Are easily connected by connectors attached to the respective ends.
[0021]
Reference numeral 21 denotes an electronic ballast, which is rotatably supported by the holder 11 via the support arm 14, so that the electronic ballast 21 rotates around the holder 11 and the longitudinal direction of the electronic ballast is arranged vertically or horizontally. can do. Reference numeral 22 denotes a heat radiating fin formed in a groove shape in the longitudinal direction of the side surface of the electronic ballast. By increasing the surface area of the electronic ballast 21, heat radiation is promoted and the temperature of the electronic ballast is lowered.
Since the heat generated by the lamp is transmitted by convection in the direction directly above the holder, if the electronic ballast is arranged on the side of the holder so that the longitudinal direction of the electronic ballast is lateral, the influence of heat on the electronic ballast can be reduced. On the other hand, when the electronic ballast is arranged directly above the holder so that the longitudinal direction of the electronic ballast is vertical, the electronic ballast is easily affected by the heat of the lamp. However, since the radiating fins formed in the longitudinal direction of the electronic ballast are oriented vertically, heat is released from the radiating fins, and convection occurs due to the heat. Since the convection is smoothly performed in the vertical direction, the cooling of the electronic ballast is promoted, and the electronic ballast is protected from a high temperature.
[0022]
Reference numeral 23 denotes a hooking groove for hooking the adapter 16 protruding from the support arm 14, and 24 denotes a hooking protrusion for fitting into the hooking protrusion fitting hole 15 provided on the stabilizer mounting surface of the support arm 14. When the adapter 16 protruding from the support arm 14 is inserted into the engagement groove 23, the hook projection 24 is pushed by the ballast mounting surface of the support arm 14 and pushed into the electronic ballast 21. Thereafter, when the support arm 14 is slid, the positions of the hooking protrusion 24 and the hooking protrusion fitting hole 15 are matched, and the hooking protrusion 24 is inserted into the hooking protrusion fitting hole 15 and locked, and the support arm 14 and the electronic ballast 21 are locked. It will not be possible to slide in the direction to release the engagement state.
The mass of the electronic ballast 21 is configured to be, for example, 2 kg or less.
[0023]
4 and 5, reference numerals 32 and 33 denote fitting mounting surfaces, which are configured to suspend and support the entire device by fitting fitting fittings and hanging tools, respectively.
[0024]
In FIG. 2, reference numeral 31 denotes a mounting bracket used to attach directly to the ceiling surface when the longitudinal direction of the electronic ballast is disposed laterally on the side of the holder. Suspend and support the whole.
[0025]
4 and 5, for example, when the longitudinal direction of the electronic ballast is arranged laterally on the side of the holder, 33 can be used as a wall mounting device by attaching a wall mounting bracket to the bracket mounting surface 33. . If the metal ballast is used and the longitudinal direction of the electronic ballast is arranged vertically above the holder, the metal fitting can be attached to the metal fitting mounting surface 33 and attached to the ceiling or the lifting device. For further reference , if the electronic ballast is placed vertically above the holder and a chain or pipe hanger is attached, the luminaire can be installed at a position away from the ceiling surface.
[0026]
4 and 5, reference numeral 34 denotes a position of the low heat resistance component, and the electronic ballast is arranged below the entire electronic ballast regardless of whether the electronic ballast is arranged vertically or horizontally. . The inside of the electronic ballast shows a distribution in which the temperature above the lower side is higher due to heat convection. Regardless of whether the longitudinal direction of the electronic ballast is arranged in the vertical direction or the horizontal direction, the components arranged below as viewed from the whole electronic ballast are not easily affected by heat.
[0027]
【The invention's effect】
According to the first aspect of the present invention, since the lighting fixture and the electronic ballast can be juxtaposed, the wiring work between the lighting fixture and the electronic ballast becomes unnecessary. Further, since the wiring length between the lighting fixture and the electronic ballast is shortened, problems such as harmonics and noise current are eliminated. Further, by using an electronic ballast, it is possible to enjoy advantages such as no flickering of the lamp, stable light color of the lamp, small size and light weight.
In addition, since the electronic ballast is rotatably supported with respect to the lighting fixture via a support arm, if the longitudinal direction of the electronic ballast is disposed laterally on the side of the holder, the electronic ballast is mounted on the ceiling or other mounting surface. The output width can be kept small.
If it is desired to perform the construction at a distance from the mounting surface, the longitudinal direction of the electronic ballast is arranged vertically above the holder, and if necessary, the electronic ballast can be hung using a hanger such as a pipe or a chain.
[0028]
According to the second aspect of the present invention, a hooking groove is formed on the support arm mounting surface of the electronic ballast, and the substantially L-shaped adapter protruding from the support arm is inserted into the hooking groove and then supported by sliding. The arm is easily and securely supported by the electronic ballast.
In addition, the electronic ballast can be easily mounted on the support arm by forming a hooking groove on the support arm and inserting an approximately L-shaped adapter protruding from the support arm mounting surface of the electronic ballast into the hooking groove and sliding it. And it is supported reliably.
[0029]
According to the third aspect of the present invention, in the state where the support arm is hooked and supported by the electronic ballast, the hooking protrusion formed on the electronic ballast is inserted into the hooking protrusion fitting hole formed on the support arm. And fit. Therefore, even if a force is applied in a direction to release the state where the support arm is hooked and supported by the electronic ballast, the hook is stopped by the hooking protrusion. Even if vibration due to an earthquake or the like is applied, the state of being supported by the hook is not easily released, and the apparatus is prevented from falling.
Further, in a state where the support arm is hooked and supported by the electronic ballast, the hooking protrusion formed on the support arm is inserted into the hooking protrusion fitting hole formed in the electronic ballast and fitted. Therefore, even if a force is applied in a direction to release the state where the support arm is hooked and supported by the electronic ballast, the hook is stopped by the hooking protrusion. Even if vibration due to an earthquake or the like is applied, the state of being supported by the hook is not easily released, and the apparatus is prevented from falling.
[0030]
According to the fourth aspect of the present invention, a component having a low heat-resistant temperature is placed in a relatively low temperature portion inside the electronic ballast regardless of whether the longitudinal direction of the electronic ballast is used vertically or horizontally above the holder. Is placed. This is because the temperature rises due to heat generated by the components inside the electronic ballast, but the temperature distribution is high in the upper part and low in the lower part as viewed from the whole electronic ballast due to heat convection. Therefore, it is possible to protect as much as possible the components having a low heat-resistant temperature disposed below the electronic ballast.
[0031]
According to the fifth aspect of the present invention, the heat generated by the lamp is transmitted by convection directly above the holder. Therefore, if the electronic ballast is arranged on the side of the holder so that the longitudinal direction of the electronic ballast is lateral, the electronic ballast The influence of heat on can be reduced. However, when the electronic ballast is arranged directly above the holder so that the longitudinal direction of the electronic ballast is vertical, the electronic ballast is easily affected by the heat of the lamp. However, since the radiating fins formed in the longitudinal direction of the electronic ballast are oriented vertically, heat is released from the radiating fins, and convection occurs due to the heat. Since the convection is smoothly performed in the vertical direction, the cooling of the electronic ballast is promoted, and the electronic ballast is protected from a high temperature.
[Brief description of the drawings]
FIG. 1 is a perspective view in which a support arm is configured in a lighting fixture of a ballast-type lighting fixture according to the present invention.
FIG. 2 is a schematic side view of an electronic ballast structure of a ballast-type lighting apparatus according to the present invention.
3 is a front view in which a support arm is formed on the holder shown in FIG. 1. FIG.
FIG. 4 is a front view in which an electronic ballast is vertically arranged above a holder.
FIG. 5 is a front view in which the electronic ballast is horizontally disposed on the side of the holder.
[Explanation of symbols]
11 Holder 12 Reflector 13 Lamp socket 14 Support arm 15 Engagement protrusion engagement hole 16 Adapter 17 Lamp 21 Electronic ballast 22 Radiation fin 23 Engagement groove 24 Engagement protrusion 31 Mounting bracket 32 Bracket mounting surface (when the ballast is horizontal)
33 Bracket mounting surface (when ballast is vertical)
34 Low heat resistant parts

Claims (5)

It has a reflector with an opening on the bottom, a holder with a lamp socket with a lamp mounted inside, and an electronic ballast, and the electronic ballast , holder and reflector are exposed from the mounting surface such as the ceiling. It is a ballast-type lighting fixture that is installed directly,
The holder supports the reflector, and the support arm that is rotatable on the other side is arranged so as to sandwich the holder from the left and right,
When the other end of the electronic ballast, which has a longitudinal direction and has a mounting surface on each of the outer side and one end, is supported on the support arm, and the electronic ballast is positioned horizontally on the side of the holder. Is configured such that the metal mounting surface of the outer surface can be directly attached to the mounting surface, or the metal mounting surface of the one end can be directly attached to the mounting surface when vertically positioned upward. A ballast-type lighting fixture characterized by A latching groove is formed on a part of the outer surface of the electronic ballast, and an adapter protruding from a support arm is fitted into the latching groove so that the lighting apparatus can be latched. 1 Ballast-mounted lighting fixture. A spring-like hooking projection made of a plate-like bent piece is formed on the support arm mounting surface provided at the other end of the electronic ballast so as to protrude freely, and an adapter is provided from the side of the plate-like bent piece. 3. The ballast-equipped lighting device according to claim 1, wherein the support arm is hooked and supported, and the electronic ballast and the support arm are locked. In the interior of the electronic ballast, the low heat temperature components in the support arm mounting surface side of the electronic ballast when the electronic ballast is sideways, which and are disposed below the electronic ballast, the electronic ballast portrait 4. The ballast-equipped luminaire according to claim 1, wherein the lighting device is disposed below the electronic ballast. When a plurality of groove-shaped heat dissipating fins are formed in the longitudinal direction of the outer surface of the electronic ballast, and the longitudinal direction of the electronic ballast is disposed vertically above the holder, the heat dissipating fins on the outer surface of the electronic ballast The ballast-mounted lighting apparatus according to claim 1, wherein the ballast is vertically arranged.

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