JP2016110934A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress temperature rise in an internal space.SOLUTION: A lighting device includes a case body 100, an electric power supply box 200 and a connecting member 300. The case body 100 houses a light source 111 and a heat radiator 120 radiating heat generated from the light source 111. The electric power supply box 200 is set apart from the case body 100, and houses the power supply part 210 supplying electricity to the light source 111. The connecting member 300 spacially connects the inside of the case body 100 and the inside of the electric power supply box 200.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a lighting device.

  2. Description of the Related Art In recent years, lighting devices using LEDs (Light Emitting Diodes), which are a type of semiconductor element that emits light when an electric current is applied, have become popular. An illumination device using an LED has an advantage that it generates less heat than that using a halogen lamp or the like. However, it is known that a decrease in the amount of light adversely affects the life when the amount of generated heat increases. For example, spotlights for the stage and studio, which are examples of lighting devices using LEDs, have increased heat generation due to the increasing output of light sources, and the internal space of the housing has become hot. Become. For this reason, such an illuminating device is desired to prevent an adverse effect on the LED by an appropriate heat dissipation measure for the internal space.

JP 2013-161623 A

  The problem to be solved by the present invention is to provide an illuminating device capable of suppressing a temperature rise in the internal space.

  The lighting device according to the embodiment includes a first housing, a second housing, and a connection member. The first housing houses a light source and a radiator that dissipates heat generated from the light source. The second housing is provided apart from the first housing and houses a power supply unit that supplies power to the light source. The connection member spatially connects the inside of the first housing and the inside of the second housing.

  According to the illumination device of the embodiment, an effect that an increase in temperature of the internal space can be suppressed can be expected.

FIG. 1 is a perspective view illustrating an example of a lighting device according to the embodiment. FIG. 2 is a perspective view illustrating an example of a lighting device according to the embodiment. FIG. 3 is a perspective view illustrating an example of the interior of the illumination device according to the embodiment. FIG. 4 is a cross-sectional view of the lighting device according to the embodiment. Drawing 5 is an explanatory view for explaining the flow of the air inside the illuminating device concerning an embodiment. Drawing 6 is an explanatory view for explaining the flow of the air inside the illuminating device concerning an embodiment.

  The lighting device 1 according to the embodiment described below includes a housing 100, a power supply box 200, and a connection member 300. The housing 100 accommodates a light source 111 including LEDs and a radiator 120 that dissipates heat generated from the light source 111. The power supply box 200 is provided separately from the housing 100 and houses a power supply unit 210 that supplies power to the light source 111. The connection member 300 spatially connects the inside of the housing 100 and the inside of the power supply box 200.

  Moreover, in the illuminating device 1 which concerns on embodiment described below, the heat radiator 120 is installed in the opposite side to the irradiation direction of the light source 111 in the housing | casing 100, and the power supply box 200 is in the direction which crosses the irradiation direction of the light source 111. The connection member 300 may be connected to the power supply box 200 and the end of the housing 100 that is provided apart from the housing 100 and is located in a direction opposite to the irradiation direction of the light source 111.

  In the lighting device 1 according to the embodiment described below, the connection member 300 is formed so that the inside can be ventilated, and the surface 100a of the housing 100 that faces the power box 200 and the power box that faces the housing 100. It may be inclined and connected to the surface 200b of 200.

  Moreover, in the illuminating device 1 which concerns on embodiment described below, the connection member 300 may support the housing | casing 100 and the power supply box 200 in the separated state.

  Moreover, in the illuminating device 1 which concerns on embodiment described below, the light source 111 may be provided with LED.

  Hereinafter, an illumination device according to an embodiment will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the structure which has the same function in embodiment, and the overlapping description is abbreviate | omitted. Moreover, the illuminating device demonstrated by the following embodiment is only an example, and does not limit this invention. Further, the following embodiments may be appropriately combined within a consistent range.

  Hereinafter, the illuminating device 1 of embodiment is demonstrated with reference to FIGS.

  FIG.1 and FIG.2 is a perspective view which shows an example of the illuminating device which concerns on embodiment. Specifically, FIG. 1 is a perspective view of the front side of the lighting device 1. FIG. 2 is a perspective view of the back side of the lighting device 1. FIG. 3 is a perspective view of the inside of the lighting device 1. As shown in FIGS. 1 and 2, the lighting device 1 includes a housing 100 (corresponding to a first housing), a power supply box 200 (corresponding to a second housing), a power cord 230, a plug 250, The connecting member 300, a plurality of fixing members 350, a support member 400, and a lid 420 are provided.

  The housing 100 stores various parts and elements. Further, the housing 100 is sealed to some extent in order to satisfy predetermined durability. In the example of FIGS. 1 and 2, the casing 100 is provided with vent holes 101 having a size and a number that do not lose predetermined durability in order to dissipate heat in the internal space.

  The internal configuration of the housing 100 will be described with reference to FIG. As shown in FIG. 3, the housing 100 houses the radiator 120 at the end opposite to the X direction, which is the irradiation direction in which the light source 111 emits light, and is thermally connected to the light source 111. . Further, the casing 100 accommodates a reflector 112 and a lens 113 in the irradiation direction of the light source 111, respectively.

  The light source 111 includes an LED. For example, the light source 110 is a chip-on-board (COB) type LED module. As an example, in the COB module, a plurality of light emitting elements such as blue LEDs and red LEDs that irradiate light when a current flows on the substrate are arranged.

  The reflector 112 controls the direction of light emitted from the light source 111. For example, the reflector 112 is attached so as to surround the periphery of the light source 111 as shown in FIG.

  The lens 113 converges or diverges the light emitted from the light source 111. For example, the lens 113 is a Fresnel lens having a saw-like cross section.

  The radiator 120 dissipates heat generated from the light source 111. Thereby, the heat radiator 120 suppresses the temperature rise in the internal space of the housing 100. Further, the radiator 120 is installed on the opposite side of the casing 100 from the irradiation direction of the light source 111. As shown in FIG. 3, the heat radiator 120 is formed by a base 121, a plurality of fins 122, and a plurality of pipes 123.

  A plurality of fins 122 and a plurality of pipes 123 are attached to the base 121. The plurality of fins 122 are formed, for example, by arranging a plurality of flat plates in parallel, and are formed of a metal material having excellent heat conduction characteristics such as aluminum and copper.

  The plurality of pipes 123 are attached so as to penetrate the plurality of fins 122. Thereby, since the some pipe 123 can conduct the heat | fever on the base 121 side to the opposite side to the base 121 among the some fins 122, the thermal radiation characteristic by the fin 122 can be used effectively.

  Note that a fan or the like may be attached in the vicinity of the radiator 120 in order to increase the heat dissipation capability by increasing the amount of air movement.

  The power supply box 200 is provided apart from the housing 100. Specifically, the power supply box 200 is provided apart from the housing 100 in a direction that intersects the X direction, which is the irradiation direction in which the light source 111 emits light. In the example of FIGS. 1 to 3, the power supply box 200 is provided so as to be parallel to the housing 100.

  Further, the power supply box 200 is not limited to the example illustrated in FIG. 1, and the end portion may be located outside the end portion of the housing 100 in the direction opposite to the X direction.

  Moreover, the power supply box 200 accommodates the power supply part 210, as shown in FIG. The power supply unit 210 supplies power to the light source 111. For example, the power supply unit 210 is formed of a circuit board that controls the flow of electricity. A vent hole may be provided in the power supply box 200 to such an extent that the power supply unit 210 is not adversely affected by dust or the like.

  Further, the power supply unit 210 is connected to the plug 250 via the power cord 230. Thereby, the power supply unit 210 can supply electricity to the light source 111 when the plug 250 is inserted into a power outlet or the like. The power supply unit 210 may supply power to various devices (not shown) as well as the light source 111.

  For example, the power supply unit 210 generates heat from the circuit board when supplying electricity to the light source 111. For this reason, when the power supply box 200 supplies electricity to the light source 111, the internal temperature rises. Therefore, the lighting device 1 is provided with a connection member 300 in order to suppress a temperature rise in the internal space of the power supply box 200.

  The connecting member 300 has a space inside and is formed to be able to vent. The connection member 300 spatially connects the inside of the housing 100 and the inside of the power supply box 200. Specifically, the connection member 300 is connected to the end of the housing 100 located in the direction opposite to the irradiation direction of the light source 111 and the power supply box 200.

  FIG. 4 is a cross-sectional view of the lighting device according to the embodiment. A hollow rectangular space is formed inside the connection member 300. Further, the connection member 300 has a surface 100 a (corresponding to the first surface) of the housing 100 facing the power supply box 200 and a surface 200 b (corresponding to the second surface) of the power supply box 200 facing the housing 100. Inclined and connected to the surface 100a and the surface 200b.

  For example, when the end portion of the power supply box 200 is positioned in the X direction from the end portion of the housing 100 as in the example of FIG. 4, the connecting member 300 is lowered by about 45 to the lower left by connecting these end portions. Set to a degree slope.

  Similarly, when the end portion of the power supply box 200 is positioned in the direction opposite to the X direction from the end portion of the housing 100, the connecting member 300 is inclined to the lower right by about 45 degrees by connecting these end portions. Is set.

  The plurality of fixing members 350 maintain a state where the housing 100 and the power supply box 200 are separated from each other.

  The support member 400 is attached to the housing 100 by a bolt 410 so as to be rotatable. The support member 400 can be directed to an arbitrary direction by being attached to a ceiling or the like. The lid 420 is called a band door and adjusts the irradiation of the light source 111 so as not to extend beyond a predetermined range.

  Thus, the housing 100 and the power supply box 200 are spatially connected via the connection member 300, and the internal space is connected. And since the inside of the connection member 300 accept | permits the flow of air, the temperature rise of the internal space of the power supply box 200 can be suppressed. This point will be described with reference to FIGS.

  FIG.5 and FIG.6 is explanatory drawing which shows the flow of the air inside the illuminating device 1 which concerns on embodiment. Specifically, FIG. 5 is a diagram in which the lighting device 1 is installed such that the X direction in which the light source 111 emits light is opposite to the Y direction, which is the direction of gravity. On the other hand, FIG. 6 is a diagram in which the lighting device 1 is installed so that the X direction in which the light source 111 emits light and the gravity direction are the same.

  In the example of FIG. 5, a state in which outside air flows into the power supply box 200 through the connection member 300 is illustrated. Now, when the power supply unit 210 in the power supply box 200 generates heat, the air in the power supply box 200 rises as a whole. On the other hand, the internal air of the connection member 300 sharing the space with the power supply box 200 remains at substantially room temperature. Therefore, since the air in the power supply box 200 can be easily related to the temperature difference from the air in the connection member 300, an air flow based on the temperature gradient is easily generated. Since there are holes and gaps around the power supply box 200 that are not affected by dust or the like, an air flow based on a temperature gradient is generated in the X direction using these as outlets. Thus, by providing the connection member 300 and sharing the internal space, the flow of internal air can be easily generated in the power supply box 200 regardless of the size and the internal temperature of the power supply box 200. Then, room temperature air continuously flows from below the power supply box 200 through the connection member 300 in order to compensate for high-temperature air flowing out from the power supply box 200 toward the X direction. Specifically, first, as shown in FIG. 5, the outside air flows in as indicated by an arrow Si1. Subsequently, the outside air advances through the connection member 300 as indicated by an arrow Si2. Then, as indicated by an arrow Si3, outside air flows from the connection member 300 into the power supply box 200, and proceeds through the power supply box 200 from the Y direction to the X direction. Such an air flow is generated when the power supply unit 210 in the power supply box 200 generates heat and the temperature in the power supply box 200 rises. Thus, by providing the connection member 300, the power supply box 200 can actively flow outside air into the power supply box 200, and thus the temperature rise in the internal space of the power supply box 200 can be suppressed.

  On the other hand, the example of FIG. 6 shows a state in which heat generated from the circuit board flows out from the inside of the power supply box 200 through the connection member 300. Now, when the power supply unit 210 in the power supply box 200 generates heat, the air in the power supply box 200 rises as a whole. On the other hand, the internal air of the connection member 300 sharing the space with the power supply box 200 remains at substantially room temperature. Therefore, since the air in the power supply box 200 can be easily related to the temperature difference from the air in the connection member 300, an air flow based on the temperature gradient is easily generated. Since there are holes and gaps around the power supply box 200 that are not affected by dust or the like, an air flow based on a temperature gradient is generated in the Y direction using these as inlets. Thus, by providing the connection member 300 and sharing the internal space, the flow of internal air can be easily generated in the power supply box 200 regardless of the size and the internal temperature of the power supply box 200. Then, in order to compensate for the air that continuously flows out from the inside of the power supply box 200 in the Y direction, the air flows in through holes or gaps (not shown) provided in the power supply box 200. Specifically, as shown in FIG. 6, first, hot air generated by the heat generated from the power supply unit 210 flows out from the power supply box 200 to the connection member 300 as indicated by an arrow Si4. Subsequently, the hot air advances through the connection member 300 as indicated by an arrow Si5. And hot air is discharge | released to the exterior of the connection member 300 like arrow Si6. Since the power supply box 200 can positively flow outside air into the power supply box 200 by providing the connection member 300 serving as a flow path for discharging air, the temperature rise in the internal space of the power supply box 200 is suppressed. can do.

  Similarly, the illuminating device 1 also suppresses a temperature increase in the internal space of the power supply box 200 even when the lighting device 1 is installed in a direction in which the irradiation direction of irradiating light and the gravitational direction Y are non-parallel (for example, crossing directions). be able to. For example, in the lighting device 1, when the power box 200 is located on the lower side in the gravity direction and the housing 100 is located on the upper side in the gravity direction, an air flow similar to that in FIG. It is possible to suppress the temperature rise in the internal space. This is because one end and the other end of the connection member 300 are inclined and connected so as to have different heights in the direction of gravity, so that a flow due to a temperature gradient can be generated in the air in the power supply box 200. . On the other hand, in the lighting device 1, when the casing 100 is positioned below the gravity direction and the power supply box 200 is positioned above the gravity direction, an air flow is generated according to the same principle as in FIG. The temperature rise in the internal space of the box 200 can be suppressed.

  As described above, the lighting device 1 can suppress the temperature increase in the internal space of the power supply box 200 in any posture on the stage or the studio. And even when the illuminating device 1 is a high output device, the temperature rise in the internal space can be effectively suppressed, so that the temperature inside the power supply box 200 can be kept within the rated reference value.

  Further, the lighting device 1 can easily maintain the structural strength and durability of the power supply box 200 as compared with a heat dissipation measure such as providing a large number of holes in the power supply box 200 itself. In addition, it is possible to reduce the risk of failure due to the influence of dust caused by providing holes and trapping confetti used for stage effects.

  Further, the connection member 300 supports the housing 100 and the power supply box 200 in a separated state. For example, as shown in FIG. 1, the connection member 300 is fixed together with the plurality of fixing members 350 so that the distance between the housing 100 and the power supply box 200 is maintained. Thereby, the luminaire 1 supports the housing 100 and the power supply box 200 more firmly than the case where the housing 100 and the power supply box 200 are supported by only the fixing member 350 in the vicinity of the middle of each. be able to. In addition, since the connection member 300 is connected to the end of the housing 100, the influence of heat generated on the housing 100 side is less likely to reach the connection member 300, and the heat dissipation effect on the power supply box 200 side is further stabilized. Can do.

  As described above, according to the embodiment, the temperature rise in the internal space can be suppressed.

  In addition, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Illuminating device 100 Case 111 Light source 120 Radiator 200 Power supply box 210 Power supply part 300 Connection member

Claims (5)

A first housing that houses a light source and a radiator that dissipates heat generated from the light source;
A second housing that is provided apart from the first housing and houses a power supply unit that supplies power to the light source;
A connection member that spatially connects the interior of the first housing and the interior of the second housing;
An illumination device comprising: The radiator is
Installed on the opposite side of the light source in the first housing;
The second housing is
Provided in a direction intersecting with the irradiation direction of the light source and spaced apart from the first housing;
The connecting member is
The lighting device according to claim 1, wherein the lighting device is connected to an end portion of the first casing located in a direction opposite to an irradiation direction of the light source and the second casing. The connecting member is
The interior is formed to allow ventilation, and is inclined with respect to the first surface of the first housing that faces the second housing and the second surface of the second housing that faces the first housing. The lighting device according to claim 1, wherein the lighting device is connected. The connecting member is
The lighting device according to any one of claims 1 to 3, wherein the first housing and the second housing are supported in a separated state.   The lighting device according to claim 1, wherein the light source includes an LED (Light Emitting Diode).