JP5789215B2 - Lighting device - Google Patents

Description

  The present invention includes a light source container in which a light source module including a light emitting diode as a light source is accommodated, a reflecting plate that reflects light from the light source, a cylindrical body that diffuses and transmits light from the light source, and a light source container The present invention relates to a lighting device including a reflector and a connecting body that connects cylindrical bodies.

  In recent years, lighting devices using light-emitting diodes (LEDs) as light sources are generally more energy efficient than fluorescent lamps and incandescent bulbs, and have a long lifetime, so that their applications are rapidly expanding. However, the light emitted from the LED has high directivity, and in the state as it is, strong light is irradiated locally. For this reason, in order to irradiate a certain amount of light over a certain area, it is necessary to diffuse the light emitted from the LED.

  As a method of diffusing the light from the LED, a concave portion (hereinafter also referred to as a reflective plate concave portion) is formed in a flat plate material having excellent light reflectivity, and an opening formed at the bottom of the reflective plate concave portion is used. It has been proposed to cause an LED to protrude into the reflector recess and to reflect and diffuse the LED light on the inner surface of the reflector recess. The lighting device including such a reflection plate is formed so as to cover a light source module including a plurality of LEDs arranged in a planar shape, a reflection plate formed to cover the light source module, and the reflection plate. There has been proposed one having a diffuser plate that diffuses and transmits light from a light source. In such an illuminating device, a reflecting plate recess is formed at a position corresponding to the LED of the light source module, and the light emitted from the LED protruding into each reflecting plate recess and the light reflected by the reflecting plate are diffused. Since the light passes through the diffusion plate while being diffused in the above, it is possible to irradiate a certain amount of light from a planar region (Patent Document 1 below).

International Publication WO2007 / 037035

  However, the illumination device as described above has a large size because a plurality of LEDs are arranged in a planar shape, and the installation space is limited. In addition, since the light source module, the reflector, and the diffuser plate are large, when manufacturing the lighting device, it is difficult to handle each member, and it is necessary to stack and fix each member sequentially. The lighting device cannot be manufactured efficiently.

  Then, this invention makes it a subject to provide the illuminating device using LED as a light source, Comprising: It is smaller and can be manufactured easily.

  An illumination device according to the present invention includes a light source container in which a light source module including a light emitting diode as a light source is accommodated, a reflection plate that reflects light from the light source, and an axial direction that is formed in a longitudinal direction. A cylindrical body that transmits light while diffusing, a light source container, a reflector, and a connecting body that connects the cylindrical bodies, and the light source container is orthogonal to the axis of the cylindrical body. A container recess formed to have a concave cross-sectional shape and housing the light source module; and a container flange extending outward from an end located in the opening direction of the container recess, The reflecting plate is arranged so as to face each other and is formed on the outside of the pair of reflecting wall portions formed so as to be inclined outwardly with respect to the facing direction and both end portions located in the inclined direction of each reflecting wall portion. A pair of counter-extensions extending outward from one end The light source container and the reflector include a light source projecting between the pair of reflecting wall portions in a state where the pair of reflecting wall portions are housed in the housing recessed portion, and the housing flange portion. And the reflection plate flange portion are configured to overlap each other, and the connecting body includes a flange insertion portion for inserting the overlapping container flange portion and the reflection plate flange portion, and a cylindrical body protrusion protruding from the inner surface of the cylindrical body. The light source container and the reflection plate are connected by the connecting body and connected by inserting the overlapping housing flange portion and the reflection plate flange portion into the flange insertion portion. In a state where the light source container and the reflecting plate are housed in the cylindrical body along the axis of the cylindrical body, the cylindrical body projecting portion is inserted into the projecting portion insertion portion, and the light source housing body and the reflecting plate are tubed by the coupling body. Connected to the body And wherein the are.

  According to such a configuration, the light source container and the reflecting plate can be handled as a unit by connecting the light source container and the reflecting plate by the connecting body. For this reason, the light source container and the reflector can be efficiently accommodated in the cylindrical body, compared with the case where the light source container and the reflector are separately accommodated inside the cylindrical body, and the lighting device can be easily installed. Can be formed. Moreover, since it becomes a rod-shaped illuminating device along the axis of a cylindrical body, it becomes smaller than the case where it is formed in a planar shape, and the space required for installation can be reduced.

  In addition, the light source protrudes between the pair of reflection wall portions in a state in which the pair of reflection wall portions are accommodated inside the container recess, so that the inner surfaces of the pair of reflection walls are opposed to the container recess. It is closer to the light source than the inner surface. For this reason, light stronger than giving light reflectivity to the inner surface of the container recess is reflected. And since a pair of reflection wall part is formed so that it may incline outward, light is efficiently reflected toward the open direction of a pair of reflection wall part.

  For this reason, brighter light is irradiated toward the opening direction of a pair of reflection wall part. Then, the light is diffused while being transmitted through the cylindrical body, so that the light is irradiated in a region other than the region corresponding to the light source. Furthermore, a part of the light irradiated toward the opening direction of the pair of reflecting walls is reflected by the cylindrical body, travels again toward the reflecting plate, is reflected again by the reflecting plate (multiple reflection), and is diffused. . In this way, an illumination device that emits uniform light can be obtained by diffusion of light due to the cylindrical body and multiple reflection.

  In addition, the cylindrical body projecting portion is inserted into the projecting portion insertion section, and the light source container and the reflector are connected to the cylindrical body via the coupling body, thereby rotating the lighting device around the axis of the cylindrical body. Thus, the light irradiation direction can be arbitrarily set.

  Furthermore, since the reflecting plate is composed of a pair of reflecting wall portions and a pair of reflecting plate flange portions, the interval between the pair of reflecting wall portions can be changed according to the size of the container recess. it can. In other words, the reflector can be used for general purposes according to the size of the recess of the container.

  In the state where the light source container and the reflection plate are connected by the connecting body, the reflection plate flange portion is positioned such that an end portion on the reflection wall portion side is on the opposite direction side of the pair of reflection wall portions with respect to the reflection wall portion. It is preferable.

  According to such a configuration, the reflection wall portion side end portion of the reflection plate flange portion is closer to the light source than the inner surface of the container recess. For this reason, the reflection wall part connected with the edge part by the side of the reflection wall part in a reflecting plate flange part also becomes a position near a light source rather than the inner surface of a container recessed part. Thereby, since the light from a light source is reflected by the reflection wall part in a stronger state, it becomes possible to irradiate stronger light.

  It is preferable that the reflection plate includes an identification unit that identifies a portion to be a reflection plate flange.

  According to such a configuration, the reflector flange portion and the reflector wall portion in the reflector can be identified. Therefore, when the light source container and the reflector are connected by the connector, the reflector flange portion is erroneously connected. Can be prevented from being housed in the housing recess. Thereby, the workability | operativity at the time of connecting a light source container and a reflecting plate with a connection body can be improved.

  It is preferable that the container flange portion and the reflector flange portion are configured to be unevenly fitted in an overlapping state.

  According to such a configuration, when the light source container and the reflector are connected by the connecting body, the light source container is configured so that the housing flange part and the reflector plate flange part are concavo-convexly fitted. And the reflector can be positioned. Moreover, the coupling state of the light source container and the reflector can be effectively maintained by the concave and convex fitting between the container flange and the reflector flange.

  It is preferable that the reflector is configured such that a space is formed between the reflector and the light source module in a state where the reflector is connected to the light source container.

  According to such a configuration, in a state where the light source container and the reflection plate are connected by the connection body, a space is formed between the reflection plate and the light source module, so that the heat released from the light source module is reduced. It is diffused through the space between the reflector and the light source module. For this reason, the heat from the light source module is directly transmitted to the reflecting plate, and a local temperature rise is prevented. Thereby, problems such as an increase in electrical resistance of the light source module can be prevented.

  The reflecting plate is preferably formed by thermoforming a thermoplastic resin sheet.

  According to such a configuration, since the reflecting plate is formed by thermoforming the thermoplastic resin sheet, the reflecting plate can be easily manufactured. Moreover, it is easier to produce a complicated shape than when the thermoplastic resin sheet is bent, and it is possible to prevent a decrease in reflectivity due to the crease formed by the bending process.

  As described above, according to the present invention, a lighting device using an LED as a light source can be manufactured more compactly and easily.

The perspective view which showed the structural article of the illuminating device which concerns on this embodiment. The perspective view which showed the light source container of the illuminating device which concerns on the same embodiment. The perspective view which showed the reflecting plate of the illuminating device which concerns on the same embodiment. The perspective view which showed the coupling body of the illuminating device which concerns on the same embodiment. (A) is sectional drawing which showed the cross section orthogonal to each longitudinal direction in the state with which the light source container of the embodiment and the reflecting plate overlapped, (b) is a connection body with a light source housing and a reflecting plate. Sectional drawing which showed the cross section orthogonal to each longitudinal direction in the state connected with each other. (A) is sectional drawing which showed the cross section orthogonal to each longitudinal direction in the state in which the light source container, the reflecting plate, and the connection body were accommodated in the cylindrical body, (b) is the same embodiment. The perspective view of an illuminating device. (A) is the perspective view which showed the reflecting plate of the illuminating device which concerns on other embodiment, (b) is the perspective view which showed the reflecting plate of the illuminating device which concerns on other embodiment. Furthermore, in the illuminating device which concerns on other embodiment, sectional drawing which showed the cross section orthogonal to each longitudinal direction of the state with which the light source container and the reflecting plate were connected by the coupling body.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  As shown in FIG. 1, the illumination device according to the present embodiment includes a cylindrical body 1 that diffuses and transmits light, a light source container 2 that houses a light source L, and a reflector that reflects light from the light source L. 3, a tubular body 1, a light source container 2, and a connecting body 4 that connects the reflector 3, and a pair of caps 5 and 5 that are inserted into a socket for supplying current. The light source container 2 and the reflector 3 are accommodated inside the cylindrical body 1 along the axis of the cylindrical body 1, and a pair of caps 5, 5 are attached to both ends of the cylindrical body 1. Is formed.

  The cylindrical body 1 is formed so that the axial direction is long. In the present embodiment, the cylindrical body 1 is formed in a cylindrical shape. Moreover, the cylindrical body 1 has openings 1a and 1a at both ends. Moreover, the cylindrical body 1 is provided with the cylindrical body protrusion part 1b which protrudes from an internal peripheral surface. The tubular body protruding portion 1 b is formed along the axis of the tubular body 1. Specifically, the cylindrical protrusion 1b is formed in a straight line over the entire area between the openings 1a and 1a formed at both ends of the cylindrical body 1. In the present embodiment, a pair of cylindrical protrusions 1b are formed.

  The light source container 2 is formed to be elongated along one direction. The length of the light source housing 2 is not particularly limited. In the present embodiment, a length shorter than the length of the cylindrical body 1 in the axial direction is used. The light source container 2 is configured to house a light source module L1 including a light emitting diode as the light source L. Specifically, the light source container 2 is formed in a concave shape (more specifically, a cross-sectional shape orthogonal to the longitudinal direction is concave), and is configured to accommodate the light source module L1 inside. In the present embodiment, the light source module L1 is formed so as to be longitudinal along the longitudinal direction of the light source container 2, and a plurality of light sources L are linearly arranged at equal intervals along the longitudinal direction. .

  The light source container 2 will be described in more detail. As shown in FIG. 2, the light source container 2 is formed in a concave shape so as to accommodate the light source module L1, and in the opening direction of the container concave part 2a. And a container flange portion 2b extending outward from the positioned end portion. Here, “outward” refers to a direction orthogonal to the axis of the cylindrical body 1 in a state where the light source container 2 is stored in the cylindrical body 1 (that is, a direction orthogonal to the longitudinal direction of the light source container 2). And the direction which goes to the outer side from the inner side of the container recessed part 2a is said.

  The container recess 2a includes a container bottom 2c on which the light source module L1 is placed, and a pair of container first walls 2d and 2d formed in an opening direction from the end of the container bottom 2c. The pair of container second wall portions 2e and 2e are formed from the respective end portions of the pair of container first wall portions 2d and 2d toward the opening direction.

  The container bottom portion 2 c is formed in a flat plate shape that is long along the longitudinal direction of the light source container 2. The container bottom 2c is configured to be in close contact with the light source module L1. The container first wall 2d and the container second wall 2e are arranged along the longitudinal direction of the light source container 2 (that is, the container bottom 2c) (specifically, the entire area between both ends in the longitudinal direction). A). The container first wall 2d is formed so as to be substantially orthogonal to the container bottom 2c. On the other hand, the container second wall 2e is formed so as to be inclined outward from the container bottom 2c.

  The container flange 2b is formed to extend outward from the end of the container second wall 2e located in the opening direction of the container recess 2a. The container flange portion 2b is formed along the longitudinal direction of the light source container 2 (specifically, over the entire area between both ends in the longitudinal direction).

  In addition, it does not specifically limit as a material which forms the light source container 2, In this embodiment, the light source container 2 is formed by bending a plate-shaped material. Such a plate-shaped material is not particularly limited. For example, it is preferable to use a material having a high thermal conductivity (metal such as aluminum). By forming the light source container 2 using such a material, the heat of the light source module L1 can be dissipated to the outside of the light source container 2, and the temperature rise of the light source module L1 can be suppressed. it can.

  Returning to FIG. 1, the reflecting plate 3 is formed to be long in one direction. The length of the reflecting plate 3 is not particularly limited, and in this embodiment, a length shorter than the length of the cylindrical body 1 in the axial direction is used.

  The reflecting plate 3 will be described in more detail. As shown in FIG. 3, the reflecting plate 3 includes a pair of reflecting wall portions 3a disposed so as to face each other, and a reflection extending from one end portion of each reflecting wall portion. And a plate flange portion 3b. The pair of reflection wall portions 3 a are formed to be long along the longitudinal direction of the reflection plate 3. The pair of reflection wall portions 3a are formed so as to be inclined outward with respect to the facing direction. Specifically, the pair of reflection wall portions 3a is configured such that, of the both end portions in the inclined direction, the interval between the one end portions 3c located outward is wider than the interval between the other end portions 3d. . Here, the outward direction is a direction orthogonal to the axis of the cylindrical body 1 in a state in which the reflecting plate 3 is accommodated in the cylindrical body 1 and is opposite to the opposing direction of the pair of reflecting wall portions 3a. Say.

  The pair of reflection wall portions 3a has a reflection plate flange portion 3b connected to one end portion 3c located in the tilt direction. The pair of reflecting wall portions 3a includes a reflecting plate protruding portion 3e protruding in the opposite direction of the pair of reflecting wall portions 3a at the other end portion 3d located in the tilt direction.

  In addition, the pair of reflection wall portions 3a are arranged with a space therebetween so that the light source L is located in a state where the light source container 2 and the reflection plate 3 are connected by the connection body 4. Specifically, in the pair of reflection wall portions 3a, the light source L projects between the pair of reflection wall portions 3a from the other end portion 3d (more specifically, the reflection plate protrusion portion 3e) positioned in the tilt direction. Is arranged.

  The reflector flange portion 3b is formed in a flat plate shape. The reflection plate flange portion 3b extends outward from one end portion 3c located in the inclination direction of the pair of reflection wall portions 3a. Moreover, the reflecting plate flange portion 3b is formed along the longitudinal direction of the reflecting plate 3 (specifically, over the entire region between both ends in the longitudinal direction). Further, the angle formed by the reflecting plate flange portion 3b and the reflecting wall portion 3a is not particularly limited, but is preferably an angle exceeding 90 ° C. That is, the reflecting plate 3 is formed so that the cross-sectional shape orthogonal to the axis of the cylindrical body 1 is a U shape.

  In addition, it does not specifically limit as a material which forms the reflecting plate 3, In this embodiment, the reflecting plate 3 is formed by thermoforming a plate-shaped material. Although it does not specifically limit as such a plate-shaped material, For example, it is preferable to use a thermoplastic resin sheet.

  Returning to FIG. 1, the connecting body 4 is formed to be long in one direction. The length of the connection body 4 is not particularly limited, and in the present embodiment, a length slightly longer than the length of the cylindrical body 1 in the axial direction is used. Moreover, the connection body 4 has a concave shape (specifically, a cross-sectional shape orthogonal to the longitudinal direction is concave). And the connection body 4 is comprised so that accommodation of the light source container 2 and the reflecting plate 3 is possible inside.

  The connecting body 4 will be described in more detail. As shown in FIG. 4, the connecting body 4 has a concave cross-sectional shape perpendicular to the axis of the cylindrical body 1 (in other words, the longitudinal direction of the connecting body 4). And a pair of connecting body wall portions 4b and 4b that are formed in the opening direction from the end of the connecting body bottom portion 4a and face each other. Moreover, the connection body 4 is provided with the flange insertion part 4c which inserts the container flange part 2b and the reflecting plate flange part 3b, and the protrusion part insertion part 4d which inserts the cylindrical body protrusion part 1b. The flange insertion portion 4c and the protrusion insertion portion 4d are formed on the connecting body wall portion 4b. That is, in this embodiment, the flange insertion part 4c and the protrusion insertion part 4d are each formed in a pair on the connection body 4.

  The flange insertion portion 4c is formed in a concave shape so as to open inside the connecting body 4 (specifically, in a direction opposite to the pair of connecting body wall portions 4b and 4b). Moreover, the flange insertion part 4c is along the axis line (in other words, the longitudinal direction of the connection body 4) of the cylindrical body 1 (specifically, covering the entire region between both ends in the longitudinal direction of the connection body 4). Is formed. That is, the flange insertion portion 4 c is formed in a groove shape along the longitudinal direction of the connection body 4.

  On the other hand, the protruding portion insertion portion 4d is formed in a concave shape so as to open to the outside of the connection body 4. Further, the protrusion insertion portion 4d extends along the axis of the cylindrical body 1 (in other words, the longitudinal direction of the connecting body 4) (specifically, over the entire region between both ends in the longitudinal direction of the connecting body 4). ) Is formed. That is, the protruding portion insertion portion 4 d is formed in a groove shape along the longitudinal direction of the coupling body 4.

  In addition, it does not specifically limit as a material which forms the connection body 4, In this embodiment, the connection body 4 is formed by thermoforming (injection molding etc.) of the resin material. Such a resin material is not particularly limited. For example, it is preferable to use a thermoplastic resin.

  Returning to FIG. 1, the base 5 includes a cylindrical base body 5 a with one end closed, and a pair of base pins 5 b and 5 b. The base body 5a is formed using a resin material (preferably having heat resistance). On the other hand, the pair of base pins 5b, 5b are made of, for example, a metal such as aluminum or copper, and are disposed so as to penetrate the base body 5a. One end portion is located outside the base body 5a, and the other end portion is formed. It is located inside the base body 5a. And in the state in which the illuminating device was formed, the other end part of a pair of cap pins 5b and 5b is electrically connected via the wiring pattern of the light source module L1, and a lead wire.

  Next, about the flow which forms an illuminating device using the cylindrical body 1 which has the above structures, the light source container 2, the reflecting plate 3, the connection body 4, and a pair of nozzle | cap | die 5,5. explain. First, as shown in FIG. 5A, the light source container 2 and the reflection plate 3 are overlapped. Specifically, the light source container 2 and the reflection plate 3 are overlapped so as to accommodate the pair of reflection wall portions 3a inside the container recess 2a.

  At this time, the light source L protrudes into a space between the pair of reflecting wall portions 3a from between the pair of reflecting wall portions 3a (specifically, the reflecting plate protruding portions 3e). Thereby, in this embodiment, it will be in the state by which the several light source L was arrange | positioned linearly (along the reflecting plate 3) between a pair of reflective wall part 3a. Furthermore, it becomes the state which the container flange part 2b and the reflecting plate flange part 3b overlapped. In addition, the other end 3d (specifically, the reflection plate protrusion 3e) located in the inclination direction of the pair of reflection walls 3a is in contact with the light source module L1.

  And the edge part by the side of the reflective wall part 3a in the reflecting plate flange part 3b becomes a position near the light source L rather than the inner surface of the container recessed part 2a. For this reason, the reflecting wall 3a connected to the end of the reflecting plate flange 3b on the reflecting wall 3a side is also closer to the light source L than the inner surface of the housing recess 2a.

  Next, as shown in FIG. 5B, the light source container 2 and the reflection plate 3 are connected by a connecting body 4. Specifically, the light source container 2 and the reflection plate 3 are accommodated inside the coupling body 4 so that the longitudinal direction of the light source container 2 and the reflection plate 3 is along the longitudinal direction of the coupling body 4. At this time, the overlapping container flange portion 2b and reflector plate flange portion 3b are inserted into the flange insertion portion 4c. Thereby, the light source container 2 and the reflecting plate 3 are connected by the connecting body 4. In such a state, a space is formed between the housing recess 2a and the connecting body bottom 4a. By forming such a space, heat from the light source module L1 is dissipated into the space via the light source container 2, and thus the temperature in the lighting device is prevented from rising locally. can do.

  In addition, in this embodiment, since the length of the light source container 2 and the reflecting plate 3 is shorter than the length of the coupling body 4, the plurality of light source containers 2 and the plurality of reflecting plates 3 are provided. They can be linearly arranged in the longitudinal direction, accommodated in the connector 4 and connected. In this way, by connecting and integrating the plurality of light source containers 2 and the plurality of reflectors 3, as described later, the plurality of light source containers 2 and the plurality of light source containers 2 are arranged inside the cylindrical body 1. Since the reflective plate 3 can be accommodated at once, the workability in manufacturing the lighting device can be improved.

  Next, as shown in FIG. 6A, the light source container 2 and the reflection plate 3 connected by the connecting body 4 are stored in the cylindrical body 1 along the axis of the cylindrical body 1. At this time, the cylindrical body protrusions 1b and 1b are inserted into the protrusion insertion parts 4d and 4d. Thereby, the light source container 2 and the reflector 3 are connected to the cylindrical body 1 by the connecting body 4.

  Finally, as shown in FIG. 6 (b), the caps 5, 5 are attached to both ends of the cylindrical body 1 that houses the light source container 2, the reflector 3, and the coupling body 4. Thereby, the rod-shaped illuminating device 10 which becomes long along the axis line of the cylindrical body 1 is formed.

  As described above, according to the illuminating device according to the present invention, the illuminating device using the LED as a light source can be more compact and easily manufactured.

  That is, the illuminating device 10 can handle the light source container 2 and the reflection plate 3 as one body by connecting the light source container 2 and the reflection plate 3 by the connection body 4. For this reason, the light source container 2 and the reflector 3 can be accommodated in the cylindrical body 1 more efficiently than the case where the light source container 2 and the reflector 3 are separately accommodated inside the cylindrical body 1. The lighting device 10 can be easily formed. Moreover, since it becomes the rod-shaped illuminating device 10 along the axis line of the cylindrical body 1, it becomes a small-sized thing compared with the case where it forms in planar shape, and the space required for installation can be made small.

  In addition, in the state in which the pair of reflecting wall portions 3a are housed inside the housing recess 2a, the light source projects between the pair of reflecting wall portions 3a, so that the opposing inner surfaces of the pair of reflecting wall portions 3a are accommodated. It is closer to the light source than the inner surface of the body recess 2a. For this reason, light stronger than giving light reflectivity to the inner surface of the container recess 2a is reflected. And a pair of reflective wall part 3a is formed so that it may incline toward the outside, and light is efficiently reflected toward the open direction of a pair of reflective wall part 3a.

  Thereby, brighter light is irradiated toward the opening direction of a pair of reflective wall part 3a. Then, the light is diffused while being transmitted through the cylindrical body 1, so that the light is irradiated in a region other than the region corresponding to the light source. Furthermore, a part of the light irradiated toward the opening direction of the pair of reflecting walls 3a is reflected by the cylindrical body 1, travels again toward the reflecting plate 3, and is reflected again by the reflecting plate 3 (multiple reflection). , Diffused. Thus, the illumination device 10 that emits uniform light can be obtained by the cylindrical body 1 and diffusion by multiple reflection.

  Further, the cylindrical body protruding portion 1b is inserted into the protruding portion insertion portion 4d, and the light source container 2 and the reflecting plate 3 are connected to the cylindrical body 1 via the connecting body 4, whereby the axis of the cylindrical body 1 is obtained. By rotating the illumination device 10 around the center, the light irradiation direction can be arbitrarily set.

  Furthermore, since the reflecting plate 3 is composed of a pair of reflecting wall portions 3a and a pair of reflecting plate flange portions 3b, the interval between the pair of reflecting wall portions 3a is changed according to the size of the housing recess 2a. Can be used. That is, it becomes the reflector 3 which can be used universally according to the size of the container recessed part 2a.

  Further, the end of the reflecting plate flange 3b on the reflecting wall 3a side is closer to the light source L than the inner surface of the housing recess 2a. For this reason, the reflecting wall 3a connected to the end of the reflecting plate flange 3b on the reflecting wall 3a side is also closer to the light source L than the inner surface of the housing recess 2a. Thereby, since the light from the light source L is reflected by the reflecting wall part 3a in a stronger state, it becomes possible to irradiate stronger light.

  Moreover, since the reflecting plate 3 is formed by thermoforming the thermoplastic resin sheet, the reflecting plate 3 can be easily manufactured. Moreover, it is easier to produce a complicated shape than when the thermoplastic resin sheet is bent, and it is possible to prevent a decrease in reflectivity due to the crease formed by the bending process.

  In addition, the illuminating device which concerns on this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of this invention. Further, the configurations and methods of the plurality of embodiments described above may be arbitrarily adopted and combined (even if the configurations and methods according to one embodiment are applied to the configurations and methods according to other embodiments). Of course, it is of course possible to arbitrarily select configurations, methods, and the like according to various modifications described below and employ them in the configurations, methods, and the like according to the above-described embodiments.

  For example, as shown in FIG. 7A, the reflector 3 may be provided with an identification portion 3f for identifying a portion to be the reflector flange portion 3b in the reflector 3. Specifically, a notch portion 3f may be formed at the end of the reflection plate flange portion 3b formed in a flat plate shape as the identification portion.

  According to such a configuration, it is possible to identify the reflecting plate flange portion 3b and the reflecting wall portion 3a by the notch portion 3f. For this reason, when connecting the light source container 2 and the reflecting plate 3 with the connecting body 4, it is possible to prevent the reflecting plate flange portion 3b from being erroneously housed in the housing recess 2a. Thereby, the workability | operativity at the time of connecting the light source container 2 and the reflecting plate 3 with the connection body 4 can be improved.

  Moreover, as shown in FIG.7 (b), you may comprise so that uneven | corrugated fitting may be carried out in the state with which the container flange part 2b and the reflecting plate flange part 3b overlapped. Specifically, the protrusion 3g for fitting is formed so as to protrude from the surface of the reflector flange portion 3b that contacts the housing flange portion 2b, and on the side of the container flange portion 2b that contacts the reflector plate flange portion 3b. A fitting recess 3h may be formed. And it is comprised so that the accommodating flange part 2b and the reflecting plate flange part 3b may carry out uneven | corrugated fitting by the protrusion part 3g for fitting entering into the recessed part 3h for fitting.

  According to such a configuration, when the light source container 2 and the reflection plate 3 are connected by the connecting body 4, the storage body flange portion 2 b and the reflection plate flange portion 3 b are configured so as to be unevenly fitted. In addition, the light source container 2 and the reflector 3 can be positioned. Moreover, the coupling | bonding state of the light source container 2 and the reflecting plate 3 can be maintained effectively by the uneven | corrugated fitting of the container flange part 2b and the reflecting plate flange part 3b. Further, by forming the fitting protrusion 3g and the fitting recess 3h, the rigidity in the direction along the axis of the cylindrical body 1 in the housing flange 2b and the reflector flange 3b can be improved.

  Moreover, in the said embodiment, although the reflecting plate 3 is accommodated in the light source container 2 in the state contact | abutted to the light source module L1, it is not limited to this, As shown in FIG. The reflector 3 (specifically, the reflector protrusion 3e) may be configured such that a space is formed between the reflector 3 and the light source module L1 in a state of being connected to the light source container 2 by the connector 4. Good. According to such a configuration, the heat emitted from the light source module is dissipated through the space between the reflector 3 and the light source module L1, so that the heat from the light source module L1 is directly transmitted to the reflector 3; It is prevented that the temperature rises locally. Thereby, malfunctions, such as an electrical resistance rise of the light source module L1, can be prevented.

  DESCRIPTION OF SYMBOLS 1 ... Cylindrical body, 1b ... Cylindrical body protrusion part, 2 ... Light source housing body, 2a ... Housing body recessed part, 2b ... Housing body flange part, 3 ... Reflecting plate, 3a ... Reflecting wall part, 3b ... Reflecting plate flange part 3f: Identification part, notch part, 3g: projection part for fitting, 3h ... concave part for fitting, 4 ... coupling body, 4a ... bottom part of coupling body, 4b ... wall part of coupling body, 4c ... flange insertion part, 4d ... projection Part insertion part, 5 ... base, 10 ... lighting device, L ... light source, L1 ... light source module

Claims (6)

A light source container in which a light source module having a light emitting diode as a light source is accommodated, a reflecting plate that reflects light from the light source, and a cylinder that is formed so that the axial direction is long and allows light from the light source to be diffused and transmitted And a connecting body that connects the light source container, the reflector, and the cylindrical body,
The light source container is formed so that a cross-sectional shape orthogonal to the axis of the cylindrical body is concave, and a container concave part for housing the light source module, and an end part positioned in the opening direction of the container concave part And a container flange portion extending outward from
The reflection plate is arranged so as to face each other, and is formed between a pair of reflection wall portions formed so as to incline outwardly with respect to the opposite direction, and both ends located in the inclination direction of each reflection wall portion. A pair of reflector flanges extending outward from one end located at
The light source container and the reflecting plate are configured such that the light source protrudes between the pair of reflecting wall portions in a state where the pair of reflecting wall portions are housed in the housing recess, and the housing flange portion and the reflecting plate flange portion are Configured to overlap,
The coupling body includes a flange insertion portion for inserting the overlapping container flange portion and the reflector flange portion, and a protruding portion insertion portion for inserting the cylindrical body protruding portion protruding from the inner surface of the cylindrical body,
The overlapping container flange part and reflector flange part are inserted into the flange insertion part so that the light source container and reflector are connected by the connecting body, and the connected light source container and reflector are the axis of the cylindrical body. The cylindrical body protruding portion is inserted into the protruding portion insertion portion, and the light source container and the reflection plate are connected to the cylindrical body by a connecting body. Lighting device.   In the state where the light source container and the reflection plate are connected by the connecting body, the reflection plate flange portion is positioned such that an end portion on the reflection wall portion side is on the opposite direction side of the pair of reflection wall portions with respect to the reflection wall portion. The lighting device according to claim 1.   The lighting device according to claim 1, wherein the reflection plate includes an identification unit that identifies a portion to be a reflection plate flange portion.   The lighting device according to any one of claims 1 to 3, wherein the container flange portion and the reflector flange portion are configured to be concavo-convexly fitted in an overlapping state.   The said reflecting plate is comprised so that space may be formed between light source modules in the state connected with the light source container by the connection body. The lighting device described in 1.   The lighting device according to any one of claims 1 to 5, wherein the reflecting plate is formed by thermoforming a thermoplastic resin sheet.

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