JP6136014B2 - Lighting device - Google Patents

Description

  The present invention relates to a lighting device used by being attached to a ceiling or the like, and more particularly to an electrical connection structure inside the lighting device.

2. Description of the Related Art In recent years, lighting devices using semiconductor light emitting elements such as LEDs (Light Emitting Diodes) with high luminous efficiency and long life as a light source are becoming widespread. In such an illuminating device, a power supply circuit unit that supplies power for lighting the semiconductor light emitting element is required.
In addition, in a lighting device used by being attached to a ceiling or the like, a light source is disposed on the lower end side of a cylindrical housing, and a power circuit unit is accommodated on the upper end side of the light source inside the housing. Conventionally, a light source and a light source are integrally formed (for example, Patent Document 1).

  In such an illuminating device, it is necessary to connect an external power supply line and a power supply circuit unit for distributing external power (commercial power) disposed on the ceiling or the like. When a contractor or the like connects the external power supply line, the lid that closes the upper opening of the housing is removed, and after connecting the external power supply line to the power supply circuit unit with the internal power supply circuit unit exposed, A method of closing the opening with a cover again has been conventionally employed.

In the above case, when connecting the external power supply line, the power supply circuit unit is exposed to the outside. There is a possibility that a problem such as the occurrence of malfunctions of electronic components may occur due to contamination. Further, it is not preferable from the viewpoint of safety.
Therefore, a configuration is conceivable in which a connection terminal such as a quick connection terminal is provided on the lid to form a terminal block, and the power supply circuit unit and the external power supply line are electrically connected via the connection terminal. In such a configuration, the external power supply line only needs to be connected to a connection terminal provided on the lid (terminal block), so there is no need to remove the lid.

JP 2011-243510 A

In the case of the above configuration, the lid is covered after the connection terminal and the power supply circuit unit are electrically connected inside the casing during assembly. Therefore, in order to improve the assembly work efficiency, there is a demand for improvement in efficiency in the electrical connection work between the connection terminal and the power supply circuit unit.
An object of this invention is to provide the illuminating device which the efficiency of the electrical connection operation | work at the time of an assembly improved in view of said subject.

  An illumination device according to one embodiment of the present invention includes a semiconductor light emitting element, a circuit board, and a conductive connector erected on the circuit board, and the power received through the connector is supplied to the semiconductor light emitting element. A power supply circuit unit that converts the power to light for lighting, and a cylindrical shape, when the main emission direction of light from the semiconductor light emitting element is downward, the semiconductor light emitting element is attached to the lower end, and the power supply circuit unit is A housing housed inside, a lid fixed to the housing, and a conductive material that is fixed to the lid and mediates an electrical connection between the external power supply line that distributes external power and the connector. A terminal block having a connection terminal, the connection terminal has a connector side connection terminal portion connected to the connector, and an external power supply line side connection terminal portion for connection to the external power supply line, One of the connector and the connector side connection terminal portion has rigidity, and protrudes to the other side along the assembly direction when the terminal block and the power supply circuit unit are assembled. The elastic member is in elastic contact with the one side.

Further, in the lighting device according to another aspect of the present invention, the lid body has an upper surface, the upper surface is provided with an opening, and the connection terminal includes the external power supply line side connection terminal portion. It is fixed to the lid body in a state of facing the opening on the upper surface.
Moreover, the illuminating device which concerns on another aspect of this invention has the connection space which is a through-hole which the said cover body penetrates to the upper surface and the recessed part which dents below from the upper surface, or an up-down direction, The said connection space An opening is provided on the side of the connecting terminal, and the connection terminal is fixed to the lid body with the external power supply line side connection terminal portion facing the opening on the side.

Further, in the lighting device according to another aspect of the present invention, the lid body is accommodated in the casing so as to cover the power supply circuit unit, or the upper end side opening of the casing is closed. It is characterized by being.
Further, in the lighting device according to another aspect of the present invention, in the state where the connection terminal is in a positional relationship in which the external power line side connection terminal portion and the connector side connection terminal portion are shifted from each other in plan view. It is fixed to the body.

Moreover, the illumination device according to another aspect of the present invention is characterized in that the external power supply line side connection terminal portion and the connector side connection terminal portion are integrally formed.
Further, in the illumination device according to another aspect of the present invention, the circuit board has a notched portion in which a part of a peripheral edge thereof is notched, and the lid body has a bottomed cylindrical shape with an open lower end. The cylindrical wall has a recessed side portion that is recessed inward so as to match the shape of the notched portion of the circuit board, and the notch portion of the circuit board and the lid body The connector and the connector-side connection terminal portion are arranged at positions that overlap in a plan view in a state in which the recessed side surface portion is fitted.

Moreover, the illuminating device which concerns on another aspect of this invention is characterized by the said connection terminal being fixed to the center part of the said cover body in planar view.
Moreover, the lighting device according to another aspect of the present invention is characterized in that the one has a columnar shape.
Moreover, the illumination device according to another aspect of the present invention is characterized in that the one of the illumination devices is cylindrical.

Moreover, the illumination device according to another aspect of the present invention is characterized in that the one has a polygonal column shape.
Moreover, the illumination device according to another aspect of the present invention is characterized in that the one is plate-shaped.
Moreover, the lighting device according to another aspect of the present invention is characterized in that the one has an X-shaped cross section by a plane perpendicular to the column axis.

Moreover, the illumination device according to another aspect of the present invention is characterized in that the other is in elastic contact so as to sandwich the one.
Moreover, the lighting device according to another aspect of the present invention is characterized in that the one is the connector.
Moreover, the illumination device according to another aspect of the present invention is characterized in that the one is the connector-side connection terminal portion.

  In the lighting device according to one embodiment of the present invention, one of the connector and the connector-side connection terminal portion has rigidity, and the other side along the assembly direction when the terminal block and the power supply circuit unit are assembled. Protruding. The other is in elastic contact with one. Thus, since one side is rigid and the other can be elastically contacted with the other, when assembling the power supply circuit unit and the terminal block, the one and the other are aligned and assembled. Electrical connection can be made simply by attaching, and the work is easy. Therefore, it is possible to improve the efficiency of electrical connection work during assembly.

  Further, in the assembled state, the other is in elastic contact with the other, so that it is possible to ensure a stable electrical connection between the one and the other.

The perspective view which shows the state with which the illuminating device which concerns on Embodiment 1 was attached to the ceiling board. It is the partially exploded perspective view which shows the illuminating device which concerns on Embodiment 1, Comprising: (a) is the figure seen from the front side, (b) is the figure seen from the back side The exploded perspective view which looked at the illuminating device which concerns on Embodiment 1 from the front side The exploded perspective view which looked at the illuminating device which concerns on Embodiment 1 from the back side Sectional drawing which shows the state by which the illuminating device which concerns on Embodiment 1 was attached to the ceiling board. BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective sectional view which shows the connection method of the connector in the illuminating device which concerns on Embodiment 1, and a connection terminal, and the connection method of a connection terminal and an external power wire, Comprising: (a) is a connector and an external power wire is a connection terminal The figure which shows the state before connecting with (b), The figure which shows the state in which the connector and the external power supply line were connected with the connection terminal It is the partially exploded perspective view which shows the illuminating device which concerns on Embodiment 2, Comprising: (a) is the figure seen from the front side, (b) is the figure seen from the back side Sectional drawing which shows the state with which the illuminating device which concerns on Embodiment 2 was attached to the ceiling board. It is a partially cutaway perspective view showing a connection method between the connector and the connection terminal in the lighting device according to Embodiment 2, wherein (a) is a diagram showing a state before the connector is connected to the connection terminal; ) Is a diagram showing the connector connected to the connection terminal It is a partially cutaway perspective view showing a connection method between the external power supply line and the connection terminal in the lighting apparatus according to Embodiment 2, wherein (a) shows a state before the external power supply line is connected to the connection terminal. FIG. 4B is a diagram illustrating a state in which the external power supply line is connected to the connection terminal. (A) is a perspective view showing a connector according to modification 1, (b) is a perspective view showing a connector according to modification 2, (c) is a perspective view showing a connector according to modification 3, and (d) is a modification. The perspective view which shows the connector which concerns on Example 4, (e) is the perspective view which shows the connector which concerns on the modification 5.

<Background to the configuration of the present invention>
When connecting a connector and a connection terminal in a housing using, for example, a lead wire, the lead wire may be bent and difficult to connect, which causes a reduction in work efficiency during assembly.
Therefore, in order to improve work efficiency, an illuminating device having a configuration capable of connecting the connector and the connection terminal with a simple work is desired.

Hereinafter, a lighting device according to one embodiment of the present invention will be described with reference to the drawings. Each drawing is a schematic diagram, and the scale of members in each drawing may be different from the actual one.
<Embodiment 1>
1. Configuration of Lighting Device 1 The configuration of the lighting device 1 will be described with reference to FIGS. FIG. 1 is a perspective view showing an appearance of the lighting device 1. FIG. 2A is a partially exploded perspective view of the lighting device 1 as seen from the front side. FIG. 2B is a partially exploded perspective view of the lighting device 1 as seen from the back side. FIG. 3 is an exploded perspective view of the lighting device 1 as seen from the front side. FIG. 4 is an exploded perspective view of the lighting device 1 as seen from the back side. FIG. 5 is a cross-sectional view showing the lighting device 1.

  As shown in FIG. 1 and FIG. 5, the lighting device 1 is a ceiling light installed on the ceiling 2, for example, and is a lighting device with a built-in power supply circuit that is directly connected to a commercial AC power source by an external power line 3. However, the configuration of the lighting device 1 may be applied to a building lighting device such as a downlight, or may be applied to a lighting device other than the building lighting device such as a backlight.

In the following description, the ceiling 2 side as viewed from the lighting device 1 is the upper side, and the opposite side is the lower side. Therefore, the upper surface of the lighting device 1 is the back surface, and the lower surface is the front surface. The main emission direction of light from the illumination device 1 is downward.
As illustrated in FIGS. 3 and 4, the lighting device 1 includes, for example, a housing 10, a light emitting unit 20, a reflection plate 30, a light guide plate 40, a cover 50, a power supply circuit unit 60, a terminal block 70, and an attachment member 80. And the apparatus main body 4 is comprised by the housing | casing 10, the light emission unit 20, the reflecting plate 30, the light-guide plate 40, the cover 50, and the power supply circuit unit 60 (refer Fig.2 (a) and FIG.2 (b)).

(1) Configuration of each member The configuration of each member will be described below.
a. Case 10
The housing 10 is made of, for example, a metal material such as aluminum die cast, and includes a circular flat plate-like base portion 11 and a circuit housing portion 12 that rises in a cylindrical shape from the upper main surface 11 a of the base portion 11. The circuit housing portion 12 has an upper end side opening 12a at the upper end.

  The base 11 has a circular opening 13 formed in the center thereof, a small screw hole 14 formed at a position sandwiching the opening 13 with a space therebetween, and a vertex of an equilateral triangle centering on the opening 13 And a through hole 15 formed at a position corresponding to. A boss 16 is formed on the upper main surface 11 a of the base 11 at a position rotated about 30 degrees from each through hole 15 around the opening 13. The small screw hole 14, the through hole 15, and the boss 16 are all disposed on the inner side of the circuit housing portion 12, and are not exposed when the lighting device 1 is assembled.

  The circuit housing portion 12 is formed with an outer flange portion 17 projecting outward in the vicinity of the center in the vertical direction of the outer peripheral surface 12b corresponding to the side surface of the cylinder to form an annular shape. In addition, a heat insulating plate 18 made of fiber heat insulating material such as glass wool, ceramic fiber, phenol foam, urethane foam or foam heat insulating material is disposed on the upper main surface 11a inside the circuit housing portion 12. Yes. The heat insulating plate 18 has a flat plate shape having a circular opening at the center thereof, and has, for example, a hexagonal shape so as to expose the through hole 15 and the boss 16 while covering the upper main surface 11a. The heat insulating plate 18 is also formed of a material having electrical insulation, and plays a role of ensuring electrical insulation between the base 11 and the power supply circuit unit 60.

b. Light emitting unit 20
The light emitting unit 20 includes a substrate 21, a plurality of light emitting units (semiconductor light emitting elements) 22, and a power supply terminal 23.
The substrate 21 is a circular flat plate having a diameter smaller than that of the base portion 11 and larger than the outer diameter of the circuit housing portion 12. For example, the substrate 21 is made of an electrically insulating layer made of ceramic, heat conductive resin, etc. The metal layer which consists of is patterned. The metal layer electrically connects each light emitting unit 22 and the power supply terminal 23, a light reflecting unit for efficiently guiding light emitted from each light emitting unit 22 to the front side of the lighting device 1, and each light emitting unit 22 emits light. It has a role as a heat radiating part for efficiently dissipating heat, and materials suitable for the role are patterned at necessary places. In addition, the substrate 21 corresponds to the base portion 11 in a circular opening 24 formed in the center thereof, a small through hole 25 formed at a position corresponding to the small screw hole 14, and the through hole 15. And a through hole 26 formed at a corresponding position.

The light emitting unit 22 uses a semiconductor light emitting element as a light source, and is, for example, a surface-mounted LED that emits white light. In addition, a plurality of light emitting units 22 exist and are arranged in an annular shape on the lower main surface of the substrate 21. Further, each light emitting unit 22 is mounted on the substrate 21 so that the main emission direction of the light is on the lower side, that is, the front side of the lighting device 1.
The power supply terminal 23 is an input unit for power to be supplied to each light emitting unit 22, and may be a power supply line that can be attached and detached, such as a socket, or may be soldered, for example, a metal land. You may do. The power supply terminal 23 is disposed in the vicinity of the opening 24 on the lower main surface of the substrate 21.

c. Reflector 30
The reflecting plate 30 is a circular flat plate having a diameter smaller than the base 11 and larger than the substrate 21. For example, a highly reflecting polycarbonate resin, a highly reflecting nylon resin, a highly reflecting polybutylene terephthalate resin, a highly reflecting foamed resin, etc. It is made of a material having a high light reflectance. The reflecting plate 30 has a small hole 31 formed at the center thereof, a window hole 32 formed at a position corresponding to each light emitting portion 22, a hollow portion 33 that includes the window hole 32 and is recessed upward in an annular shape, And a through hole 34 formed at a position corresponding to the apex of a substantially regular hexagon centering on the small hole 31 at the peripheral edge.

Further, on the upper main surface of the reflecting plate 30, a protrusion 35 located at a position corresponding to the opening end of the opening 24 so as to surround the small hole 31, a boss 36 located at a position corresponding to the through hole 15, and a through hole A raised portion 37 that runs in an arc shape along the outer periphery of the reflecting plate 30 is formed between the holes 34. The diameter of the arc formed by the raised portion 37 is substantially the same as the diameter of the substrate 21.
The reflecting plate 30 only needs to have at least the side surface of the window hole 32 and the lower main surface including the recessed portion 33 made of a material having high light reflectivity, and the protrusion 35, the boss 36, the raised portion 37, and the upper side. The main surface may be made of a material such as a resin having low light reflectance.

d. Light guide plate 40
The light guide plate 40 is a circular flat plate having a size equivalent to that of the reflection plate 30 and is made of a translucent material such as acrylic resin, polycarbonate resin, polystyrene resin, or glass. The light guide plate 40 includes a recessed portion 41 that is recessed upward at a position corresponding to the ring formed by the light emitting portion 22, and a through hole 42 formed at a position corresponding to the through hole 34. Further, a protrusion 43 is formed at the center of the upper main surface 40 a of the light guide plate 40.

e. Cover 50
The cover 50 has a dome shape recessed downward, and is made of a translucent material such as silicone resin, acrylic resin, polycarbonate resin, or glass. A protrusion 51 is formed on the upper surface side of the cover 50 at a position corresponding to the through hole 34. The outer diameter of the cover 50 is substantially the same as the diameter of the base part 11.

f. Power supply circuit unit 60
The power supply circuit unit 60 includes a circuit board 61, circuit components 62, lead wires 63, connectors 64, and the like.
The circuit board 61 has a substantially circular flat plate shape whose diameter is smaller than the inner diameter of the circuit housing portion 12, and is made of, for example, an electrically insulating material such as paper phenol or glass epoxy. In the center of the circuit board 61, a substantially semicircular opening 61a is formed. Further, the circuit board 61 is formed with a notch 61b in which a part of the peripheral edge is cut out linearly. A wiring patterned with a conductive material such as metal is formed on the circuit board 61, and the wiring electrically connects the circuit component 62, the lead wire 63, and the connector 64.

The circuit component 62 is an electronic component such as a control IC, a transistor, a diode, a resistor, a coil, or a capacitor, and is mounted on both main surfaces of the circuit board 61. In FIG. 2B, FIG. 3, FIG. 4, and FIG. The same applies to the second embodiment.
The lead wire 63 is connected to the power supply terminal 23 of the light emitting unit 20 to electrically connect the light emitting unit 20 and the power supply circuit unit 60, and the tip thereof is, for example, a plug depending on the type of the power supply terminal 23 And lead wires exposed from the sheath.

The connector 64 is an input unit for power to be supplied to the power supply circuit unit 60, and is formed of a conductive material, and is, for example, a quadrangular prism pin. As a conductive material forming the connector 64, for example, a metal such as copper, carbon, or the like can be used. The connector 64 is disposed on the circuit board 61 in an opposing manner.
g. Terminal block 70
The terminal block 70 has a bottomed cylindrical shape, and passes through a circular flat plate-shaped bottom surface portion 70a, a side surface portion 70b that rises in a cylindrical shape from the lower main surface of the bottom surface portion 70a, and a central portion of the bottom surface portion 70a. And a cylindrical terminal portion 71. The terminal block 70 is made of, for example, an electrically insulating material such as ceramic or resin, and is accommodated in the circuit accommodating portion 12 of the housing 10 so as to cover the power circuit unit 60.

A through hole 72 at a position corresponding to the boss 16 is formed in the bottom surface portion 70a.
A claw 73 that protrudes inside the cylinder is formed on the side surface 70b. Further, a part of the side surface part 70b is formed with a recessed side surface part 70b1 that is linearly recessed inward, and a part of the recessed side surface part 70b1 is cut out to form a notch part. 70b2 is formed. The shape of the recessed side surface portion 70 b 1 corresponds to the shape of the notched portion 61 b of the circuit board 61, and the notched portion 70 b 2 is formed at a position corresponding to the lead wire 63.

  The terminal portion 71 is formed of a cylindrical connection terminal holding portion 71a formed of an electrically insulating material such as ceramic or resin, and a conductive material such as metal such as copper or iron, and the inside of the connection terminal holding portion 71a. And the connection terminal 71b held by the terminal. The connection terminal 71b is integrally formed from a connector side connection terminal portion 71b1, an external power supply line side connection terminal portion 71b2, and a connection portion 71b3 that connects the connector side connection terminal portion 71b1 and the external power supply line side connection terminal portion 71b2. It is configured.

The lid 75 is configured by the portion other than the connection terminal 71b of the terminal block 70, that is, the bottom surface portion 70a, the side surface portion 70b, and the connection terminal holding portion 71a. The upper surface 75 a of the lid body 75 includes an upper surface 70 a 1 of the bottom surface portion 70 a and an upper surface 71 a 2 of the terminal portion 71.
As shown in FIG. 5, the connector 64 is in contact with and electrically connected to the connector side connection terminal portion 71 b 1 of the connection terminal 71 b inside the terminal portion 71. Further, the distal end portion 3b1 of the external power supply line 3 is in contact with and electrically connected to the external power supply line side connection terminal portion 71b2 of the connection terminal 71b inside the terminal portion 71. Thereby, the connector 64 and the external power supply line 3 are electrically connected via the connection terminal 71b.

The configuration of the terminal portion 71, the electrical connection method between the connector 64 and the connection terminal 71b, and the electrical connection method between the external power supply line 3 and the connection terminal 71b will be described in detail later.
Further, a substantially semi-annular protrusion 71a3 is formed at the lower end portion of the connection terminal holding portion 71a.
Here, the power supply circuit unit 60 is accommodated in the terminal block 70, and the terminal block 70 is accommodated in the circuit accommodating portion 12.

h. Mounting member 80
The mounting member 80 has a bottom having a circular flat plate shape on the upper side and a cylindrical shape on the side, and is, for example, a metal material such as aluminum or iron, a ceramic, or a resin having thermal conductivity. Made of material. The mounting member 80 includes a circular opening 81 formed at the center of the bottom, a through hole 82 formed at a position sandwiching the opening 81 with a gap in the bottom, and the center in the vertical direction of the inner peripheral surface of the side. It has an inner flange 83 that protrudes inward and forms an annular shape in the vicinity. Further, the inner diameter of the mounting member 80 is larger than the outer diameter of the circuit housing portion 12.

  As mentioned above, although the structure of each member was demonstrated, the said structure is an example of the illuminating device 1 to the last, Comprising: It is not restricted to this. In the lighting device 1, it is possible to appropriately add, change, and delete each of the above members, for example, change of the number or position of openings or protrusions in each member, addition of a heat radiating member, a reinforcing member, etc. The reflection plate 30 and the light guide plate 40 may be deleted. In addition, a plurality of members may be integrated, for example, the light guide plate 40 and the cover 50 may be integrated, or the light emitting units 22 and the power circuit unit 60 are directly arranged on the housing 10. It may be.

i. External power line 3
The external power supply line 3 is not a member constituting the lighting device 1 but is important in the description of the configuration of the lighting device 1 according to the present embodiment.
The external power supply line 3 is an electric wire that is arranged on the back of the ceiling or the like and distributes commercial external power individually to a lighting device or an electric device. The external power supply line 3 includes an external power supply line main body 3a formed as a single flexible line and a bifurcated portion 3b that is a bifurcated portion at the tip. The tip portion 3b1 of the bifurcated portion 3b is constituted by a pin made of metal such as copper having rigidity. The portions other than the tip portion 3b1 of the bifurcated portion 3b have flexibility. Portions other than the tip portion 3b1 of the external power supply line 3 are covered with an electrically insulating covering member such as resin.

(2) Assembly and Installation Method of Lighting Device 1 Hereinafter, an assembly and installation method of the illumination device 1 will be described. However, the following is an example, and the method of assembling and installing the lighting device 1 is not limited to this.
First, the light emitting units 20 are stacked on the lower main surface 11b of the base 11 so that each light emitting portion 22 is exposed, and the small screws 27 inserted into the small through holes 25 from the light emitting unit 20 side are replaced with the small screws. Screwed into the hole 14. Thereby, the light emitting unit 20 is fixed on the lower main surface 11 b of the base part 11. At this time, a plurality of light emitting portions 22 are arranged in a ring shape on the lower main surface 11b. Since the diameter of the substrate 21 is smaller than the diameter of the base portion 11, the lower main surface 11 b is exposed around the light emitting unit 20.

Next, the lead wire 63 is inserted from the circuit housing portion 12 side in the order of the opening portion of the heat insulating plate 18, the opening portion 13, and the opening portion 24, and connected to the power supply terminal 23. Thereby, each light emission part 22 and the power supply circuit unit 60 are electrically connected. At this time, the heat insulating plate 18 is disposed between the power supply circuit unit 60 and the upper main surface 11a of the base 11.
Next, in a state where the recess 41 and the protrusion 43 of the light guide plate 40 are inserted into the recess 33 and the small hole 31 of the reflecting plate 30, respectively, the protrusion 51 of the cover 50 is inserted into the through hole 42 from the light guide plate 40 side. And inserted into the through hole 34. Then, the tip of the protruding portion 51 protruding from the through hole 34 is plastically deformed into a shape that does not come out of the through hole 34 by laser light or the like. Thereby, the reflection plate 30 and the light guide plate 40 are fixed inside the cover 50. The light guide plate 40 can be rotated with respect to the reflection plate 30 in a state where the positional relationship with the reflection plate 30 is fixed by the recess 41 and the protrusion 43 inserted in the reflection plate 30. Therefore, it is easy to align the through hole 34 and the through hole 42 when the protrusion 51 is inserted.

  Next, in a state where the light emitting unit 20 is pressed against the base portion 11 by the raised portion 37, the screw 19 inserted into the through hole 15 and the through hole 26 from the circuit housing portion 12 side is screwed into the boss 36. Thereby, the reflecting plate 30, the light guide plate 40 and the cover 50 are fixed to the housing 10. At this time, the light guide plate 40 is disposed at a position covering the lower main surface 11 b of the base portion 11. Furthermore, the front end of the side surface of the cover 50 is in close contact with the lower main surface 11b exposed from the periphery of the light emitting unit 20, so that the light emitting unit 20, the reflecting plate 30, and the light guide plate 40 are covered with the cover 50 and exposed to the outside. Not exposed.

  In addition, the reflecting plate 30 has a protrusion 35 at a position along the end of the opening 24, and can be rotated with respect to the light emitting unit 20 in a state where the positional relationship with the light emitting unit 20 is fixed. Therefore, alignment of the through hole 15 and the through hole 26 and the boss 36 is easy. At this time, since each light emitting part 22 is exposed from each window hole 32 of the reflecting plate 30, the light emitted from each light emitting part 22 is not obstructed by the reflecting plate 30. Further, the light emitted from each light emitting unit 22 enters between the light emitting unit 20 and the reflecting plate 30 by surrounding each light emitting unit 22 while the side surface of the window hole 32 is in contact with the lower main surface of the substrate 21. It prevents that.

  Further, when the screw 19 is screwed into the boss 36, a packing 52 is disposed between the side surface of the cover 50 and the raised portion 37 of the reflecting plate 30, and the base portion 11, the reflecting plate 30 and the cover 50 are connected. By filling the space between them, the adhesion between the housing 10 and the cover 50 can be improved (see FIG. 2). With this configuration, entry of foreign matter such as dust, insects and moisture into the cover 50 can be prevented. The packing 52 is preferably made of a stretchable and water-repellent material such as a resin such as silicone.

  Next, a method for assembling the power supply circuit unit 60 and the terminal block 70 will be described. The power supply circuit unit 60 and the terminal block 70 are arranged to face each other so that the notch 61b of the circuit board 61 fits into the recessed side surface portion 70b1 of the terminal block 70. Then, the peripheral portion of the circuit board 61 is fitted inside the side surface portion 70b while the protruding portion 71a3 is inserted into the opening portion 61a, and the peripheral portion of the circuit board 61 and the claw portion 73 are fitted. At this time, the connector 64 is inserted into the connector side connection terminal hole 71a1a. As described above, when the notch 61b of the circuit board 61 is oriented to fit into the recessed side surface portion 70b1 of the terminal block 70, the connector 64 and the connector-side connection terminal hole 71a1a are respectively disposed at positions where they coincide. ing.

  Thereby, the power supply circuit unit 60 is fixed inside the terminal block 70, and the connector 64 and the terminal portion 71 are electrically connected. At this time, the lead wire 63 is located in the notch 70b2. Thereby, the lead wire 63 is pushed and bent by the side surface portion 70b, and the connection portion between the lead wire 63 and the circuit board 61 can be prevented from being damaged due to unnecessary stress. The electrical connection between the connector 64 and the terminal portion 71 will be described later in detail.

  Note that the positioning of the power supply circuit unit 60 and the terminal block 70 is not limited to the configuration performed by the notched portion 61b formed in the circuit board 61 and the recessed side surface portion 70b1 of the terminal block 70 as described above. For example, a protrusion may be formed on the peripheral portion of the circuit board 61, and a notch, a notch, a groove, or the like corresponding to the protrusion may be formed on the side surface portion 70b of the terminal block 70, or may protrude inwardly on the side surface portion 70b. A rail-shaped protrusion may be formed, and a notch or a notch corresponding to the protrusion may be formed on the peripheral portion of the circuit board 61.

Next, the side surface portion 70b of the terminal block 70 is inserted into the circuit housing portion 12 so that the bottom surface portion 70a of the terminal block 70 is on the upper side, and the screw 74 inserted into the through hole 72 from the bottom surface portion 70a side is Screw into the boss 16. Thereby, the terminal block 70 is fixed in the circuit housing portion 12 of the housing 10, and the power circuit unit 60 is housed in the circuit housing portion 12.
In addition, that the power supply circuit unit 60 is accommodated in the circuit accommodating part 12 means that the main part of the power supply circuit unit 60 is located inside the circuit accommodating part 12. Therefore, a part of the power supply circuit unit 60, for example, a tall component such as an insertion type housing among the circuit components 62, the lead wire 63, the connector 64, and the like may protrude from the circuit housing portion 12 to the upper side. Further, the bottom surface portion 70 a of the terminal block 70 may be exposed above the circuit housing portion 12.

  Next, with the external power line 3 exposed from the opening 81, the bottom of the mounting member 80 is brought into close contact with the ceiling 2, and the mounting member 80 is attached to the ceiling 2 by the wood screw 84 inserted into the through hole 82 from below. Fix in place. Further, the distal end portion 3b1 of the external power supply line 3 exposed from the opening 81 is inserted into the external power supply line side connection terminal hole 71a2a of the terminal portion 71 from the bottom surface portion 70a side. Thereby, the external power supply line 3 and the power supply circuit unit 60 are electrically connected through the terminal portion 71. This will also be described in detail later.

Subsequently, the housing 10 is inserted into the mounting member 80 from below, and the outer flange portion 17 of the housing 10 and the inner flange portion 83 of the mounting member 80 are fitted (see FIG. 5). It is fixed at a predetermined position on the ceiling 2. At this time, the upper end side opening 12a of the circuit housing portion 12 is closed by the mounting member 80.
The method of fitting the outer flange portion 17 and the inner flange portion 83 may be, for example, by elastically deforming either or both of the circuit housing portion 12 and the attachment member 80, or the outer flange portion 17 and the inner flange portion. 83 may be formed in a screw shape and screwed together.

The assembly / installation of the lighting device 1 is completed by the above method.
2. Electrical Connection Next, the configuration of the connector 64 and the terminal portion 71, the electrical connection method between the connector 64 and the terminal portion 71, and the electrical connection method between the external power supply line 3 and the terminal portion 71 will be described in more detail below.

  FIG. 6A is an enlarged cross-sectional view of a main part of the lighting device 1 showing a state before the connector 64 and the external power supply line 3 are connected to the terminal portion 71. FIG. 6B is an enlarged cross-sectional view of a main part of the lighting device 1 showing a state where the connector 64 and the external power supply line 3 are connected to the terminal portion 71. 6 (a) and 6 (b), only the terminal block 70, the power supply circuit unit 60, and the external power supply line 3 are shown for easy understanding, and the housing 10, the mounting member 80, and the light emitting unit are shown. The other constituent members such as 20 are not shown.

  As shown in FIG. 6A, the connector 64 is a square columnar pin made of a conductive material having rigidity such as metal, and the direction in which the power supply circuit unit 60 and the terminal block 70 are assembled (FIG. 6A ) In the direction indicated by the arrow A, and protrudes upward (on the terminal block 70 side) along the vertical direction or the Z-axis direction). As a metal material for forming the connector 64, for example, copper, nickel or the like can be used. The connector 64 is provided through the connector base 65 and the circuit board 61 provided on the circuit board 61. The connector base 65 functions as a reinforcing member for preventing the connector 64 from coming off and falling, and is made of an electrically insulating material such as resin. In the present embodiment, the connector 64 is provided through the circuit board 61, but is not limited thereto. The connector 64 may be erected on the circuit board 61 without penetrating the circuit board. Further, the connector base 65 may not be provided.

The terminal portion 71 includes a cylindrical connection terminal holding portion 71a made of an electrically insulating material such as resin, and a connection terminal 71b held by the connection terminal holding portion 71a. The connection terminal holding portion 71a has a connector side connection terminal hole 71a1a which is an opening provided in the lower surface 71a1 and an external power supply line side connection terminal hole 71a2a which is an opening provided in the upper surface 71a2.
In the present embodiment, the upper end portion of the terminal portion 71 protrudes upward from the bottom surface portion 70a. However, the present invention is not limited to this. The upper end portion of the terminal portion 71 does not protrude from the bottom surface portion 70a, and the upper surface 71a2 of the terminal portion 71 may be flush with the upper surface 70a1 of the bottom surface portion 70a, or is recessed below the upper surface 70a1. It may be.

  The connection terminal 71b is made of a conductive material such as metal and is held in the internal space 71a4 of the connection terminal holding portion 71a. The internal space 71a4 communicates with the external space via the connector side connection terminal hole 71a1a and the external power supply line side connection terminal hole 71a2a. The connection terminal 71b is a portion held at a position facing the connector side connection terminal hole 71a1a, a connector side connection terminal portion 71b1, and a portion held at a position facing the external power supply line side connection terminal hole 71a2a. The connection terminal portion 71b2 and the connection portion 71b3 for connecting the connector side connection terminal portion 71b1 and the external power supply line side connection terminal portion 71b2 are formed integrally. In the present embodiment, the terminal portion 71 has a pair of connection terminals 71b. Each connection terminal 71b is formed by processing one metal plate such as a copper plate.

The connector side connection terminal portion 71b1 includes a plate spring-like connector side leaf spring region 71b1a having elasticity, and a connector side receiving region 71b1b disposed to face the connector side leaf spring region 71b1a. In the present embodiment, the connector side receiving region 71b1b is also formed in a plate spring shape by bending a plate-shaped metal plate, and has elasticity.
Further, the external power supply line side connection terminal portion 71b2 has an elastic leaf spring-like external power supply line side leaf spring region 71b2a and an external power supply line side receiving region 71b2b disposed to face the external power supply line side leaf spring region 71b2a.

  As shown in FIG. 6A, when the connector 64 and the distal end portion 3b1 of the external power supply line 3 are not inserted, when the connector side connection terminal hole 71a1a is looked straight into from the outside, the connector side leaf spring region At least a part of 71b1a is seen to protrude into the connector side connection terminal hole 71a1a. Further, when the external power supply line side connection terminal hole 71a2a is looked straight into from the outside, at least a part of the external power supply line side leaf spring region 71b2a appears to protrude into the external power supply line side connection terminal hole 71a2a.

Here, “facing” the connection terminal 71b in the opening (for example, the connector-side connection terminal hole 71a1a and the external power line connection terminal hole 71a2a) means that the connection terminal 71b is connected when the opening is looked straight into from the outside. It is used to indicate a state in which at least a part of the terminal 71b appears to protrude from the opening. The same applies to the second embodiment.
When the power supply circuit unit 60 and the terminal block 70 are assembled, when the connector 64 is inserted into the terminal portion 71 from the connector side connection terminal hole 71a1a, as shown in FIG. The connector side connection terminal portion 71b1 comes into contact with each other and is electrically connected. At this time, since the connector 64 is inserted between the connector side leaf spring region 71b1a and the connector side receiving region 71b1b of the connector side connection terminal portion 71b1 so as to push away the connector side leaf spring region 71b1a, the connector side leaf spring region 71b1a The connector 64 is pressed against and is in contact with its own elastic force (that is, it is in elastic contact). Thereby, the contact with the connector 64 and the connector side connection terminal part 71b1 becomes more reliable, and both electrical connection can be made more reliable. At this time, the connector 64 is sandwiched between the connector-side leaf spring region 71b1a and the connector-side receiving region 71b1b.

In the present embodiment, the connector side receiving region 71b1b has elasticity, but is not limited to this. If the connector side leaf spring region 71b1a has elasticity, the connector side receiving region 71b1b is elastic. May not be included.
When the distal end portion 3b1 of the external power supply line 3 is inserted into the terminal portion 71 through the external power supply line side connection terminal hole 71a2a, as shown in FIG. 6B, the distal end portion 3b1 becomes the external power supply line side connection terminal portion 71b2. And both are electrically connected. At this time, as in the case of the connector 64, the distal end portion 3b1 is disposed between the external power supply line side leaf spring region 71b2a and the external power supply line side receiving region 71b2b of the external power supply line side connection terminal portion 71b2. Since it is inserted so as to push the region 71b2a away, the external power supply line side leaf spring region 71b2a is pressed and elastically contacted with the tip portion 3b1 by its own elastic force. Thereby, the electrical connection between the external power supply line side connection terminal portion 71b2 and the tip portion 3b1 can be made more reliable. At this time, the distal end portion 3b1 is sandwiched between the external power supply line side leaf spring region 71b2a and the external power supply line side receiving region 71b2b. The external power supply line side receiving region 71b2b may have elasticity.

In this way, the external power supply line 3 and the connector 64 are electrically connected via the connection terminal 71b.
3. Obtained Effects As described above, the configuration of the illumination device 1 according to the present embodiment can be summarized as follows. That is, the lighting device 1 includes the semiconductor light emitting element 22, the power supply circuit unit 60, the housing 10, and the terminal block 70. The power supply circuit unit 60 includes a circuit board 61 and a conductive connector 64 erected on the circuit board 61. The power received via the connector 64 is converted into power for lighting the semiconductor light emitting element 22. Convert. The casing 10 has a cylindrical shape, and when the main emission direction of light from the semiconductor light emitting element 22 is downward, the semiconductor light emitting element is attached to the lower end of the casing 10, and the power circuit unit 60 is connected to the casing 10. Housed inside. The terminal block 70 includes a lid 75 fixed to the housing 10, and a connection terminal 71 b that mediates electrical connection between the external power supply line 3 that distributes external power and the connector 64. The connection terminal 71 b is fixed to the lid 75, and has a connector side connection terminal portion 71 b 1 connected to the connector 64 and an external power supply line side connection terminal portion 71 b 2 connected to the external power supply line 3. One of the connector 64 and the connector side connection terminal portion 71b1 has rigidity, protrudes to the other side along the assembly direction of the terminal block 70 and the power supply circuit unit 60, and the other is in elastic contact with one. .

  In the configuration of the illumination device 1 according to the present embodiment, the connector 64 has rigidity and protrudes toward the terminal block along the assembly direction of the terminal block 70 and the power supply circuit unit 60. Specifically, the connector 64 according to the first embodiment is a pin having rigidity and conductivity made of a metal material such as copper, and is erected on the circuit board 61. When the power supply circuit unit 60 and the terminal block 70 are assembled, when the connector 64 is inserted into the connector-side connection terminal hole 71a1a, the connector 64 and the connector-side connection terminal portion 71b1 are elastically contacted and connected to the connector 64. Electrical connection with the terminal 71b is performed. As a result, compared to the conventional case where the power supply circuit unit and the connection terminal are connected using a lead wire or the like, the electrical connection work is easier and the work efficiency can be improved.

Also, when connecting using lead wires or the like, it is difficult to work if the lead wires are too short, so the lead wires need to have a certain length. Therefore, in this case, the lead wire after connection is housed in the circuit housing portion 12 of the housing 10 in a bent state, but a housing space for that purpose is required in the circuit housing portion 12. This is an obstacle to downsizing.
According to the configuration of the present embodiment, there is no need for a space for accommodating the lead wire, which can contribute to the miniaturization of the lighting device.

  In the configuration of lighting device 1 according to the present embodiment, lid 75 may have an upper surface 75a, and external power supply line side connection terminal hole 71a2a that is an opening may be provided on upper surface 75a. . The connection terminal 71b may be fixed to the lid 75 in a state where the external power supply line side connection terminal portion 71b2 faces the external power supply line side connection terminal hole 71a2a that is an opening of the upper surface 75a.

  With the above configuration, the external power supply line side connection terminal hole 71a2a is provided on the upper surface 75a of the lid 75 and opens upward. Accordingly, the tip portion 3b1 of the external power supply line 3 can be inserted into the external power supply line side connection terminal hole 71a2a from above. In addition, the external power supply line side connection terminal portion 71b2 of the connection terminal 71b is fixed to the lid 75 in a state of facing the external power supply line side connection terminal hole 71a2a. Therefore, when the distal end portion 3b1 is inserted into the external power supply line side connection terminal hole 71a2a, the external power supply line side connection terminal portion 71b2 comes into contact with the distal end portion 3b1, and electrical connection therebetween is made. Thereby, the electrical connection between the connection terminal 71b and the external power supply line 3 can be easily performed only by inserting the tip portion 3b1 into the external power supply line side connection terminal hole 71a2a from above.

  Further, the connection terminal 71b may be fixed to the lid body 75 in a state where the external power supply line side connection terminal portion 71b2 and the connector side connection terminal portion 71b1 are in a positional relationship shifted from each other in plan view. Specifically, in the lighting device 1 according to the present embodiment, as shown in FIGS. 6A and 6B, the connector side connection terminal portion 71b1 and the external power supply line side connection terminal portion 71b2 are: They are arranged at positions shifted from each other in the axial direction. With the configuration as described above, when the distal end portion 3b1 of the external power supply line 3 and the connector 64 are inserted, they do not collide with each other. Therefore, compared with the case where they are arranged in series on the same axis. The length of the terminal portion 71 (length in the vertical direction (Z-axis direction)) can be reduced. That is, the thickness (length in the vertical direction (Z-axis direction)) of the terminal block 70 can be reduced to contribute to the thinning of the entire lighting device 1.

The displacement between the connector-side connection terminal portion 71b1 and the external power supply line-side connection terminal portion 71b2 is not limited to the X-axis direction, and is displaced in any direction as long as both are arranged in a plan view. May be.
<Embodiment 2>
In the first embodiment, the configuration in which the distal end portion 3b1 of the external power supply line 3 is inserted and connected in the direction along the vertical direction has been described. However, the connection mode of the external power supply line 3 is not limited to this. Hereinafter, the illumination device 100 according to Embodiment 2 will be described in detail with reference to the drawings. In addition, in order to avoid duplication of description, about the same component as Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted. Hereinafter, the same applies to each modification.

1. Configuration of Lighting Device 100 The configuration of the lighting device 100 will be described with reference to FIGS. 7 (a), (b), and FIG. FIG. 7A is a partially exploded perspective view of the lighting device 100 as seen from the front side. FIG. 7B is a partially exploded perspective view of the lighting device 100 as seen from the back side. FIG. 8 is a cross-sectional view showing the lighting device 100.

  As shown in FIGS. 7A and 7B, the lighting device 100 includes, for example, a main body 5, a power circuit unit 160, a terminal block 170, and an attachment member 80. The main body 5 has the same configuration as that obtained by removing the power supply circuit unit 60 from the apparatus main body 4 in the first embodiment. That is, the main body 5 includes the housing 10, the light emitting unit 20, the reflection plate 30, the light guide plate 40, and the cover 50. Since these components are the same as those in the first embodiment, in FIGS. 7A and 7B, illustration of the exploded view showing the internal configuration of the main body 5 is omitted. Also, the housing 10 and the cover 50 are the same as those of the lighting device 1 according to Embodiment 1, and the appearance of the lighting device 100 is the same as the appearance of the lighting device 1 shown in FIG.

(1) Configuration of Each Member The configuration of each member of the lighting device 100 that is different from the member of the lighting device 1 will be described below.
j. Terminal block 170
The terminal block 170 is made of an electrically insulating material such as ceramic or resin, has a bottomed cylindrical shape, and has a substantially disk-shaped bottom surface portion 170a, a side surface portion 170b that rises downward in a cylindrical shape from the periphery of the bottom surface portion 170a, and A terminal portion 171 is provided below the bottom surface portion.

  The bottom surface portion 170a is formed with a connection space 170a2 which is a recess recessed downward from the top surface 170a1 at the center. An external power supply z70a2a1 is formed on the side surface 170a2a of the connection space 170a2. A terminal portion 171 is provided below the bottom surface portion 170a and communicates with the external power supply line side connection terminal hole 170a2a1 and between the side surface portion 170b. A connector-side connection terminal hole 171a1a is formed in the lower surface 171a1 of the terminal portion 171.

Similar to the side surface portion 70b of the terminal block 70 in the first embodiment, a concave side surface portion 170b1 having a shape that is linearly recessed inward is formed on a part of the side surface portion 170b. A part of the side surface portion 170b1 is notched to form a notched portion 170b2.
k. Power circuit unit 160
The power supply circuit unit 160 includes a circuit board 161, circuit components 62, lead wires 63, connectors 64, and the like.

  The circuit board 161 is different from the circuit board 61 according to the first embodiment mainly in the following three points. That is, the connector 64 is erected not in the vicinity of the center portion of the circuit board 161 but in the vicinity of the peripheral portion, the point that does not have an opening corresponding to the opening portion 61a, and the circuit on the circuit board 161 accordingly. There are three points where the arrangement and wiring pattern of the component 62 are different. Except for these three points, the basic configuration is the same as that of the circuit board 61. The circuit board 161 has a notch 161 b corresponding to the notch 61 b of the circuit board 61. The connector 64 is erected at a position corresponding to the connector side connection terminal hole 171a1a on the circuit board 161 when the notch 161b and the recessed side surface portion 170b1 of the terminal block 170 are positioned.

l. External power line 103
The external power supply line 103 is not a member constituting the lighting device 100, but a schematic configuration thereof will be described.
The external power supply line 103 includes an external power supply line main body part 3a and a bifurcated part 103b. The bifurcated portion 103b has a shape bent approximately 90 degrees, and a tip portion 103b1 which is an exposed metal pin is provided at the tip. The portions other than the tip portion 103b1 of the tip portion 103b1 have a certain degree of flexibility. Portions other than the external power line main body 3a and the tip portion 103b1 of the bifurcated portion 103b are covered with an electric field insulating covering member such as resin.

2. Electrical Connection Next, the configuration of the terminal portion 171, the electrical connection method between the connector 64 and the terminal portion 171, and the electrical connection method between the external power supply line 103 and the terminal portion 171 will be described below.
FIG. 9A is a partially cutaway perspective sectional view of the lighting device 100 showing a state before the connector 64 is connected to the terminal portion 171. FIG. 9B is a partially cutaway perspective sectional view of the lighting device 100 showing a state in which the connector 64 is connected to the terminal portion 171. FIG. 10A is a partially cutaway perspective sectional view of the lighting device 100 showing a state before the external power supply line 103 is connected to the terminal portion 171. FIG. 10B is a partially cutaway perspective sectional view of the lighting device 100 showing a state in which the external power supply line 103 is connected to the terminal portion 171. 9A, 9B, 10A, and 10B, the power supply circuit unit 160, the external power supply line 103, and the terminal portion 171 are not shown in cross section. For the sake of clarity, only the main circuit components 62 are shown.

The terminal portion 171 is disposed below the bottom surface portion 170a between the side surface 170a2a where the external power supply line side connection terminal hole 170a2a1 is provided and the side surface portion 170b, and is electrically insulating such as resin. A connection terminal holding portion 171a made of a material and a connection terminal 71b formed of a conductive material such as metal and held by the connection terminal holding portion 171a.
The connection terminal holding portion 171a is mainly a flat plate region 171aa, a lower recessed region 171ab in which a part of the flat plate region 171aa is recessed downward, and a columnar member having a C-shaped cross section standing on the flat plate region 171aa. It consists of a columnar region 171ac. A connector-side connection terminal hole 171a1a is provided on the bottom surface of the lower recessed area 171ab. The connector-side connection terminal portion 171b1 of the connection terminal 171b faces the connector-side connection terminal hole 171a1a in the lower recessed area 171ab. Is held in. The external power supply line side connection terminal portion 171b2 is fixed at the position facing the external power supply line side connection terminal hole 170a2a1 by the columnar region 171ac, and the external power supply line side is fixed between the flat plate region 171aa and the bottom surface portion 170a. The connection terminal portion 171b2 is held and accommodated. A portion of the bottom surface portion 170a where the external power supply line side connection terminal portion 171b2 is held protrudes downward to form a protrusion 170a3, and the protrusion 170a3 fits inside the C of the columnar region 171ac. As a result, the columnar region 171ac is fixed.

In addition, the cover body 175 is comprised by parts other than the connection terminal 171b of the terminal block 170, ie, the bottom face part 170a, the side part 170b, and the connection terminal holding part 171a. An upper surface 175a of the lid body 175 is an upper surface 170a1 of the bottom surface portion 170a. The top surface 175a may include the bottom surface 170a2b of the connection space 170a2.
The connection terminal 171b is integrally formed from a connector side connection terminal portion 171b1, an external power supply line side connection terminal portion 171b2, and a connection portion 171b3 connecting the connector side connection terminal portion 171b1 and the external power supply line side connection terminal portion 171b2. It is configured.

In this embodiment, the terminal portion 171 includes a pair of connection terminals 171b. Each connection terminal 171b is formed by processing one metal plate such as a copper plate.
The connector side connection terminal portion 171b1 includes a plate spring-like connector side leaf spring region 171b1a having elasticity, and a connector side receiving region 171b1b disposed to face the connector side leaf spring region 171b1a.

Further, the external power supply line side connection terminal portion 171b2 includes an elastic power supply-side external power supply line side leaf spring region 171b2a and an external power supply line side receiving region 171b2b disposed to face the external power supply line side leaf spring region 171b2a.
The columnar region 171ac is disposed between the pair of connection terminals 171b and serves as a separator that separates the two. That is, the columnar region 171ac plays a role of securing electrical insulation between the pair of connection terminals 171b in addition to the role of fixing the connection terminals 171b.

Note that the portion of the side surface 170a2a where the external power supply line side connection terminal hole 170a2a1 is provided, the portion of the bottom surface portion 170a (including the protruding portion 170a3) and the portion of the side surface portion 170b corresponding to the portion are connected terminal holding. It can also be understood as constituting a part of the portion 171a.
When the power supply circuit unit 60 and the terminal block 70 are assembled, when the connector 64 is inserted into the terminal portion 171 from the connector side connection terminal hole 171a1a, as shown in FIG. It contacts the side connection terminal portion 171b1, and both are electrically connected. At this time, since the connector 64 is inserted between the connector side leaf spring region 171b1a and the connector side receiving region 171b1b of the connector side connection terminal portion 171b1 so as to push the connector side leaf spring region 171b1a, the connector side leaf spring region 171b1a The connector 64 is in elastic contact with its own elastic force. Thereby, the contact with the connector 64 and the connector side connection terminal part 171b1 becomes more reliable, and both electrical connection can be made more reliable. At this time, the connector 64 is sandwiched between the connector side leaf spring region 171b1a and the connector side receiving region 171b1b. The connector side receiving region 171b1b may have elasticity.

  Next, the connection between the external power supply line 103 and the external power supply line side connection terminal portion 171b2 will be described. As shown in FIGS. 10A and 10B, when the distal end portion 103b1 of the external power supply line 103 is inserted into the terminal portion 171 from the external power supply line side connection terminal hole 170a2a1, the distal end portion 103b1 becomes the external power supply line side. It contacts the connection terminal portion 171b2 and both are electrically connected. At this time, as in the case of the connector 64, the distal end portion 103b1 is disposed between the external power supply line side leaf spring region 171b2a and the external power supply line side receiving region 171b2b of the external power supply line side connection terminal portion 171b2. Since it is inserted so as to push the region 171b2a away, the external power supply line side leaf spring region 171b2a is in elastic contact with the tip portion 103b1 by its own elastic force. Thereby, both electrical connection can be made more reliable. At this time, the distal end portion 103b1 is sandwiched between the external power supply line side leaf spring region 171b2a and the external power supply line side receiving region 171b2b. The external power supply line side receiving region 171b2b may have elasticity.

Further, at this time, since the terminal block 170 has the connection space 170a2, the connection space 170a2 functions as a work space when connecting the distal end portion 103b1 and the external power supply line side connection terminal portion 171b2. It is possible to work easily.
In this way, the external power supply line 103 and the connector 64 are electrically connected via the connection terminal 171b.

3. Effect Obtained As described above, the same effect as that of the illumination device 1 according to the first embodiment can be obtained by the configuration of the illumination device 100 according to the second embodiment. That is, the connector 64 and the connection terminal 171b can be electrically connected by simply inserting the pin-shaped connector 64 into the connector side connection terminal hole 171a1a. Thereby, compared with the case where it connects using a lead wire etc., work is easy and it can aim at the improvement of work efficiency.

Further, similarly to the lighting device 1 according to the first embodiment, a space for accommodating the connected lead wire is unnecessary, and accordingly, the lighting device 100 can be reduced in size.
Furthermore, the cover body 175 is a connection space 170a2 that is a recess recessed downward from the upper surface 175a and the upper surface 175a or a through-hole penetrating in the vertical direction (in the second embodiment, the connection space 170a2 is a recess). .). The side surface 170a2a of the connection space 170a2 may be provided with an external power line connection terminal hole 170a2a1, which is an opening. The connection terminal 171b may be fixed to the lid 175 in a state where the external power supply line side connection terminal portion 171b2 faces the external power supply line side connection terminal hole 170a2a1 that is an opening of the side surface 170a2a.

  In lighting device 100 according to the present embodiment, external power supply line side connection terminal hole 170a2a1 is provided on side surface 170a2a of connection space 170a2 and opens in the lateral direction (a direction substantially perpendicular to the vertical direction). doing. Accordingly, the distal end portion 103b1 of the external power supply line 103 is inserted laterally into the external power supply line side connection terminal hole 170a2a1. At this time, the distal end portion 103b1 and the external power supply line side connection terminal portion 171b2 come into contact with each other, and electrical connection is made between the connection terminal 171b and the external power supply line 103.

  In a state where the tip portion 103b1 and the external power supply line side connection terminal portion 171b2 are in contact, the tip portion 103b1 is accommodated inside the terminal block 170 in a state of lying down. Thereby, compared with the structure accommodated in the terminal block 70 in the state where the front-end | tip part 3b1 became vertical like the illuminating device 1 which concerns on Embodiment 1, the thickness (vertical direction ( The length) in the Z-axis direction) can be further reduced, and the lighting device 100 can be made thinner.

Further, in the present embodiment, the terminal block 170 has a connection space 170a2, and when the distal end portion 103b1 is inserted into the external power supply line side connection terminal hole 170a2a1, the connection space 170a2 is used as the work space. Since it can be used, work is easy.
Furthermore, since the terminal block 170 has a connection space 170a2, when the lighting device 100 is attached to the ceiling, the terminal block 170 is also used as a space for storing a portion exposed from the ceiling 2 of the external power supply line 103. The space 170a2 can function. Accordingly, the lighting device 100 can be installed in close contact with the ceiling 2, insects and foreign objects can be prevented from entering, and the appearance is also good.

<Modification>
As described above, Embodiment 1 and Embodiment 2 which are one embodiment of the present invention have been described, but the present invention is not limited thereto. Hereinafter, modified examples of the lighting device according to one embodiment of the present invention will be described with reference to the drawings. In addition, when the same member as the member already demonstrated is used, the same code | symbol as the member is attached | subjected and description is simplified or abbreviate | omitted. Moreover, the scale of the member in each drawing may differ from an actual thing.

In the illuminating device 1 according to the first embodiment and the illuminating device 100 according to the second embodiment, the connector 64 is a quadrangular prism pin, but the present invention is not limited to this.
1. Modification 1
FIG. 11A is a schematic perspective view showing a connector 264 according to the first modification. The connector 264 is a cylindrical pin, and the basic configuration such as material is the same as that of the connector 64 according to the first and second embodiments except that the shape is different.

In FIG. 11A, the circuit board is not shown. The same applies to FIGS. 11B to 11E.
2. Modification 2
FIG. 11B is a schematic perspective view showing a connector 364 and a connector base 365 according to the second modification. The connector 364 is a plate-like member, and the basic configuration such as material is the same as the connector 64 according to the first and second embodiments except that the shape is different.

The connector base 365 has the same basic structure as the connector base 65 according to the first and second embodiments except for the difference in size.
3. Modification 3
In the first and second embodiments and the first and second modifications, the connector is provided on the circuit board so as to be opposed to the circuit board, but is not limited thereto.

  FIG. 11C is a schematic perspective view showing a connector 464 and a connector base 465 according to the third modification. The connector 464 is an X-shaped columnar member with a plane orthogonal to the column axis (here, the vertical direction and the direction orthogonal to the circuit board), and one columnar member is a circuit board ( (Not shown). The connector 454 is composed of a pair of prismatic conductive portions 464a made of a conductive material such as metal and an electrically insulating material such as a resin, and a plate-like electrical insulation interposed between the pair of conductive portions 464a. And sexual part 464b.

The connector base 465 is the same as the connector base 65 according to the first and second embodiments in basic configuration such as material and function except that the connector base 465 is different in size.
4). Modification 4
FIG. 11D is a schematic perspective view showing a connector 564 and a connector base 565 according to Modification 4. The connector 564 is a square columnar pin, and three pins are erected on a circuit board (not shown).

The connector base 565 has the same basic configuration as the connector base 65 according to the first and second embodiments except for the difference in size.
One of the three pins may be used for grounding or may not perform any electrical function.
5. Modification 5
FIG. 11E is a schematic perspective view showing a connector 664 and a connector base 665 according to the fifth modification. The connector 664 is a columnar member, and is erected on a circuit board (not shown). The connector 664 includes a pair of conductive portions 664a made of a conductive material such as a metal foil, and a columnar electrically insulating portion 664b made of an electrically insulating material such as a resin. The conductive portions 664a are affixed to the peripheral surface of the electrically insulating portion 664b while being separated from each other.

The connector base 565 has the same basic configuration as the connector base 65 according to the first and second embodiments except for the difference in size.
6). Other Modifications In the lighting device 100 according to the second embodiment, the connection space 170a2 is a recess, but is not limited thereto, and may be a through hole. Also in this case, the through hole functions as a work space when connecting the tip portion 103b1 and the external power supply line side connection terminal portion 171b2, and the connection work can be easily performed. In addition, the external power supply line side connection terminal hole is provided on the side surface of the through hole, which can contribute to the thinning of the lighting device.

In the lighting devices according to Embodiments 1 and 2 and Modifications 1 to 5, the external shape of the connector base is a rectangular parallelepiped. However, the shape is not limited to this, and a cube, a cylinder, an elliptical cylinder, a cylinder, or an elliptical cylinder is used as an axis. The shape may be a half-cut shape, a hemisphere, or a dome shape.
In the lighting devices according to the first and second embodiments, the connector-side connection terminal portions 71b1 and 171b1 have connector-side leaf spring regions 71b1a and 171b1a, and the connector-side leaf spring regions 71b1a and 171b1a themselves have the elastic force. 64 was in elastic contact. The external power supply line side connection terminal portions 71b2 and 171b2 have external power supply line side leaf spring regions 71b2a and 171b2a, and elastically contact the tip portions 3b1 and 103b1 by the elastic force of the external power supply line side leaf spring regions 71b2a and 171b2a themselves. Was. However, it is not limited to these.

The connector side connection terminal portion and the external power supply line side connection terminal portion may be configured to receive an external urging force and come into close contact with the connector and the front end portion of the external power supply line, respectively. The external biasing force may be, for example, a biasing force by a helical spring or the like.
In the first and second embodiments and the first to seventh modifications, the connector is a columnar protrusion that is erected on the circuit board, and is inserted into the connection terminal side to be connected to the connector side connection terminal portion. Although it was a structure, it is not restricted to this. The connector side connection terminal portion may be a protrusion and may be inserted and connected to the connector side. Further, the shape of the protrusion is not limited to the column shape, and may be a cone, a pyramid, a hemisphere, a dome shape, or the like.

Furthermore, as long as stable electrical connection can be ensured, both the connector and the connector-side connection terminal portion may be protrusions, or both may be elastic members such as leaf springs. Good.
In the lighting devices according to Embodiments 1 and 2, the base portion of the housing has a circular flat plate shape, but is not limited to a circular shape, and may be, for example, a polygon or an ellipse. Further, the base portion is not limited to a flat plate shape whose main surface is completely flat, and an opening or some unevenness may exist on the main surface.

Further, in the lighting devices according to the first and second embodiments, the circuit housing portion of the housing is cylindrical. However, the present invention is not limited thereto, and may be any cylindrical shape that rises from the main surface of the base portion. It may be a polygonal column shape or an elliptical column shape having a space inside.
Moreover, in the illuminating device according to the first and second embodiments, the plurality of light emitting units are arranged in an annular shape. However, the present invention is not limited to this, and for example, arranged in a polygonal annular shape or an elliptical annular shape. Also good. Furthermore, a plurality of rings formed by a plurality of light emitting units may be arranged.

  Moreover, in the illuminating device according to the first and second embodiments, the LED that emits white light is illustrated as the light emitting unit. However, the light emitting unit is not limited thereto, and may be, for example, an LED that emits light other than white light. The plurality of light emitting units may emit different colors. Furthermore, it is good also as a structure which can add a light control circuit and can change luminescent colors, such as a daylight color, a daylight white, white, warm white, a light bulb color, etc. with the signal from the outside.

Further, although the surface mount type LED is exemplified as the LED, it is not limited to this, and a bullet type LED may be used, or an LED chip is directly mounted on a substrate (COB: Chip On Board). Also good. In the case of a COB type LED, a plurality of LEDs may be integrated with an annular or dome-shaped resin.
In addition to the LED, the light source of the light emitting unit may be an LD (laser diode) or an EL (electroluminescence) element. Furthermore, there is no limitation on the number of these light emitting portions.

  Moreover, in the illuminating device which concerns on the said Embodiment 1 and 2, although the hexagonal flat heat insulation board was illustrated as an aspect of a heat insulation member, it is not restricted to this. For example, the heat insulating member is not a hexagon but may be a circle or a polygon other than a hexagon. Moreover, the shape with an opening and the unevenness | corrugation in the surface etc. may be sufficient instead of flat form. Further, it may be a thin film coated on the substrate of the housing or the power supply circuit unit instead of an independent member.

Further, in the lighting device according to the above-described embodiment and the modification, the configuration in which the bottom surface portion is circular and the side surface portion is cylindrical and includes the terminal portion as one aspect of the terminal block is illustrated, but the present invention is not limited thereto. Absent. For example, the bottom surface portion may be a polygon or an ellipse. Further, for example, the side surface portion may be a polygonal or elliptical cylinder.
Moreover, in the illumination device according to Embodiments 1 and 2, the upper end side opening of the circuit housing portion 12 is illustrated as being configured to be closed by the attachment member 80, but is not limited thereto. For example, the upper end side opening 12a may be closed by the terminal block 70.

  As mentioned above, although the aspect of this invention was demonstrated based on the said embodiment and modification, this invention is not restricted to the said embodiment and modification. For example, a configuration obtained by appropriately combining the partial configurations of the above-described embodiment and modification examples may be used. In addition, the materials, numerical values, and the like described in the above embodiments are merely preferable examples, and are not limited thereto. Further, it is possible to appropriately change, add, or delete the configuration without departing from the scope of the technical idea of the present invention. The present invention can be widely used in general lighting applications.

DESCRIPTION OF SYMBOLS 1,100 Illuminating device 3,103 External power supply line 4,104 Apparatus main body 10 Case 12a Upper end side opening 20 Light emitting unit 22 Light emitting part (semiconductor light emitting element, LED)
60, 160 Power circuit unit 61, 161 Circuit board 61b, 161b Notch 64 Connector 70, 170 Terminal block 75, 175 Lid 75a, 175a Upper surface (upper surface of the lid)
70b, 170b Side surface (cylinder wall)
70b1, 170b1 Recessed side surface portion 71a, 171a Connection terminal holding portion 71a2a, 171a2a1 External power supply line side connection terminal hole (opening)
71b, 171b Connection terminal 71b1, 171b1 Connector side connection terminal part 71b2, 171b2 External power line side connection terminal part 170a2 Connection space 170a2a Side

Claims (16)

A semiconductor light emitting device;
A power supply circuit unit that has a circuit board and a conductive connector erected on the circuit board, and converts power received through the connector into power for lighting the semiconductor light emitting element;
When the main emission direction of the light from the semiconductor light emitting element is downward, in a cylindrical shape, the semiconductor light emitting element is attached to the lower end, and the housing that houses the power supply circuit unit therein,
A lid fixed to the casing, and a terminal block fixed to the lid and having a conductive connection terminal that mediates an electrical connection between the external power line for distributing external power and the connector. Have
The connection terminal has a connector side connection terminal portion connected to the connector and an external power supply line side connection terminal portion for connecting to the external power supply line,
One of the connector and the connector side connection terminal portion has rigidity, and protrudes to the other side along the assembly direction when the terminal block and the power supply circuit unit are assembled. Is an illuminating device in elastic contact with the one side. The lid has an upper surface;
The upper surface is provided with an opening,
The lighting device according to claim 1, wherein the connection terminal is fixed to the lid body with the external power supply line side connection terminal portion facing the opening on the upper surface. The lid body has a connection space that is a top surface and a recessed portion recessed downward from the top surface or a through-hole penetrating in the vertical direction.
An opening is provided on a side surface of the connection space,
The lighting device according to claim 1, wherein the connection terminal is fixed to the lid body in a state where the external power supply line side connection terminal portion faces the opening on the side surface. The said cover body is accommodated in the inside of the said housing | casing in the aspect which covers the said power supply circuit unit, or has obstruct | occluded the upper end side opening of the said housing | casing. Lighting equipment. The said connection terminal is being fixed to the said cover body in the state from which the said external power supply line side connection terminal part and the said connector side connection terminal part became the positional relationship which mutually shifted | deviated in planar view. The lighting device according to claim 1. The lighting device according to any one of claims 1 to 5, wherein the external power line side connection terminal portion and the connector side connection terminal portion are integrally formed. The circuit board has a cutout part in which a part of the peripheral edge is cut out,
The lid has a bottomed cylindrical shape with an open lower end, and has a recessed side surface portion that is recessed inward so that a part of the cylindrical wall matches the shape of the notch of the circuit board. And
2. The connector and the connector-side connection terminal portion are arranged at a position where they overlap in a plan view in a state where the notch portion of the circuit board and the recessed side surface portion of the lid are fitted. The lighting device according to any one of 6 to 6. The lighting device according to any one of claims 1 to 7, wherein the connection terminal is fixed to a central portion of the lid in a plan view. The lighting device according to claim 1, wherein the one has a columnar shape. The lighting device according to claim 9, wherein the one has a columnar shape. The lighting device according to claim 9, wherein the one has a polygonal column shape. The lighting device according to claim 9, wherein the one has a plate shape. The lighting device according to claim 9, wherein the one has an X-shaped cross section by a plane orthogonal to the column axis. The lighting device according to claim 9, wherein the other is in elastic contact so as to sandwich the one. The lighting device according to claim 1, wherein the one is the connector. The lighting device according to any one of claims 1 to 14, wherein the one is the connector-side connection terminal portion.

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