CN202501234U - Lamp apparatus and lighting appliance - Google Patents

Abstract

The utility model relates to a lamp device and a lighting appliance. The lamp device is provided with a light-emitting module, a lighting circuit, optical parts and a frame body. The lighting circuit includes: a ring-shaped circuit board provided with an opening facing one side of the light emitting module; and circuit components mounted on at least one side of the circuit board. The optical component is disposed in the opening of the circuit board, and controls light from the light emitting element. One side of the frame body is open, and the other side has a lamp head, which accommodates the light-emitting module, lighting circuit and optical components inside, and has a wiring guide. The wiring is passed through and the circuit board is locked, and the electric wire connects the light-emitting module and the circuit parts on one side of the circuit board.

Description

Light fixtures and lighting fixtures

technical field

Embodiments of the present invention relate to a lamp device using a light emitting element and a lighting fixture using the lamp device.

Background technique

Conventionally, as a lamp device using a light emitting element, for example, there is a flat lamp device using a GX53 base. Among such lamp devices, there are also lamp devices in which light-emitting elements, lighting circuits, and optical components are accommodated in a frame provided with a lamp cap, but parts for installing these housing parts in the frame or for electrically connecting the light-emitting elements are used. There are relatively many parts such as parts of the lighting circuit. Furthermore, in this type of lamp device, the light distribution characteristic of the light irradiated from the light emitting element is set to one kind. Therefore, desired light distribution control is obtained by using optical components such as reflectors, globes, and visors on the side of the lighting fixture to which the lamp device is mounted.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2010-262781

Utility model content

Problems to be solved by utility models

However, it is desired to reduce the number of parts and simplify the lamp device in order to achieve cost reduction.

In order to obtain the desired light distribution control, since the lamp device cannot handle it, it must be dealt with on the side of the lighting fixture to which the lamp device is mounted, resulting in complexity and size of the lighting fixture.

One of the problems to be solved by the present invention is to provide a lamp device capable of reducing and simplifying the number of parts and a lighting fixture using the lamp device.

One of the problems to be solved by the present invention is to provide a lamp device capable of obtaining desired light distribution control and a lighting fixture using the lamp device.

A lamp device according to an embodiment includes a light emitting module, a lighting circuit, optical components, and a housing. The light emitting module has a light emitting element on one side of the light emitting module. The lighting circuit includes: a ring-shaped circuit board provided with an opening facing one side of the light emitting module; and circuit components mounted on at least one side of the circuit board. The optical component is disposed in the opening of the circuit board, and controls light from the light emitting element. One side of the frame body is open, and the other side has a lamp head, which accommodates the light-emitting module, lighting circuit and optical components inside, and has a wiring guide (guide), and the wiring guide (guide) is inserted into the lighting. The circuit board of the electric circuit forms a wiring path through which electric wires are passed and prevents the circuit board from rotating. The wires connect the light-emitting module and circuit components on one side of the circuit board.

In the lamp device of the embodiment, a light-transmitting cover (cover) is further arranged at the opening of the housing.

A lighting fixture according to an embodiment includes: the lamp device described above; and a lamp socket on which the lamp device is mounted.

(effect of utility model)

According to the present invention, the wiring guide part of the frame body can be used both for the formation of the wiring passage and the rotation prevention of the circuit board, which can be expected to reduce and simplify the number of parts. The wiring passage uses electric wires to connect the light-emitting module and the circuit. Circuit parts on one side of the substrate.

According to the present invention, desired light distribution control can be obtained only with the lamp device, and simplification and downsizing of lighting fixtures can be expected. Furthermore, the wiring guiding portion is provided with a wiring guiding function and a function of preventing rotation of the circuit board.

Description of drawings

FIG. 1 is a perspective view showing an exploded state of a lamp device according to one embodiment.

Fig. 2 is a cross-sectional view showing a lamp device according to one embodiment.

Fig. 3 is a front view of a state in which a lighting circuit is incorporated in a casing showing the lamp device according to the embodiment.

Fig. 4 is a perspective view showing one side of a lamp device according to one embodiment.

Fig. 5 is a perspective view showing another side of the lamp device according to the embodiment.

Fig. 6 is a cross-sectional view of a lamp device using the mid-angle optical component of Fig. 2 .

Fig. 7 is a cross-sectional view of a lighting fixture using a lamp device showing an embodiment.

Fig. 8 is a perspective view showing an exploded state of a lamp device according to one embodiment.

[explanation of the symbol]

11: Lighting fixtures

12: Department to be set

13: Embedding hole

15: Appliance body

16: lamp holder

17: radiator

18: Light device

21: frame

21a: common installed part

22, 57: heat conduction sheet

23: Lighting module

24: Optical parts

25: lighting circuit

26: Translucent cover

28: box body

28a, 70: openings

29: lamp head component

30: lamp head

31: flat part

32, 43: Peripheral face

32a: concave and convex part

33, 35: through holes

34, 48: Mounting holes

36, 37: Substrate support part

38: Wiring guide

38a: side wall portion

38b: outer wall part

39: wiring path

40: Optical parts support part

40a: convex rib

41: Mounting slot

42: end face

44, 58: Screws

45: Raised

46: heat conduction part

47, 68a: Mounting surface

49: Department of Restrictions

50, 88: wedge groove

50a, 88a: Longitudinal groove

50b, 88b: horizontal groove

51, 89: Wedge

53: Substrate

54: Luminous Department

55, 69a, 73a, 73b: Connectors

56: Bracket

60: reflector

60a: common installation part

61: Light guide

62: cover part

63: reflective surface

64: Substrate fitting part

65: Substrate pressing part

66: Hold Claw

68: Circuit board

68b: Wiring pattern side

69: Circuit Parts

71: Incision

72: light foot

73: wire

75: Embedded part

76: Detent claw

77: Finger hook

78, 83: Marking

81: Flange

82: Fitting hole

85: lamp holder body

86: Insertion opening

87: Connection slot

91: base

92: cooling fins

93: protrusion

94: contact surface

95: Installation department

96: Install the spring

97: Terminal board for power supply

98: Terminal board for dimming signal

99: Mounting plate

Detailed ways

Hereinafter, an embodiment will be described with reference to the drawings.

As shown in FIGS. 7 and 8 , the lighting fixture 11 is a built-in lighting fixture such as a down light, and is installed in a state of being fitted into a circular fitting hole 13 provided on an installation portion 12 such as a ceiling. .

The lighting fixture 11 includes a fixture body 15 , a socket 16 integrally fixed to the fixture body 15 , a radiator 17 , a flat lamp device 18 detachably attached to the socket 16 , and the like.

In addition, hereinafter, on the basis of the state where the lighting fixture 11 is installed horizontally and the flat lamp device 18 is installed horizontally with respect to the lighting fixture 11, one side of the lamp device 18 is referred to as the lower side (for example, the lower surface, the lower side, the lower part, lower end, etc.), and the other surface will be described as the upper side (for example, upper surface, upper side, upper part, upper end, etc.).

First, as shown in FIGS. 1 to 6, the lamp device 18 includes: a flat and cylindrical frame body 21; a heat-conducting sheet (sheet) 22 mounted on the upper surface of the frame body 21; Inside the frame body 21 ; an optical component 24 and a lighting circuit 25 ;

The housing 21 has a cylindrical case 28 and a cylindrical base member 29 attached to the upper surface of the case 28 . The base portion 30 is constituted by the upper surface side of the case body 28 and the base member 29 protruding from the upper surface of the case body 28 .

The case body 28 is made of, for example, insulating synthetic resin, and has a flat plate portion 31 on the upper surface and a peripheral surface portion 32 protruding downward from the peripheral portion of the flat plate portion 31 . An opening 28 a is formed on the lower surface of the case body 28 .

On the flat plate part 31, an insertion hole 33 is formed in the center, and a plurality of mounting holes 34 are formed on the outer diameter side of the insertion hole 33, and further, a plurality of insertion holes 34 are formed on the outer diameter side of these mounting holes 34. Hole 35. On the peripheral portion of the flat plate portion 31 and the edge portion of the insertion hole 33, an annular outer peripheral side substrate support portion 36 and an annular inner peripheral side substrate support portion that support the lighting circuit 25 (circuit board 68) are respectively formed. 37. The board support portion 36 on the outer peripheral side is formed in a groove shape into which the lighting circuit 25 (circuit board 68 ) fits (see FIG. 2 , details are omitted in FIG. 1 ). At one place of the board support part 37 on the inner peripheral side, a wiring guide part 38 is formed on the outer diameter side of the board support part 37 and protrudes further downward from the board support part 37, and the wiring guide part 38 forms a communication line. The upper and lower surfaces of the flat plate portion 31 and the wiring passage 39 in the insertion hole 33 . In the wiring guide portion 38, a pair of side wall portions 38a are formed toward the radially outer side from the board support portion 37, and an outer wall portion 38b is formed on the radially outer side of the pair of side wall portions 38a. 38a and the outer wall portion 38b are formed in a substantially U-shaped cross section.

On the inner peripheral surface of the peripheral surface portion 32, a plurality of optical component support portions 40 for supporting the optical component 24 are formed, and a plurality of attachment grooves 41 are formed in the vicinity of the opening portion 28a. A rib (rib) 40 a for locking the optical component 24 is formed on one optical component support portion 40 . On the outer peripheral surface and the upper side of the peripheral surface portion 32, a concavo-convex portion 32a for enlarging the surface area is formed.

The base member 29 is formed of a material such as metal such as aluminum casting, ceramics, or resin with excellent thermal conductivity, and has an end surface 42 on the upper surface and a peripheral surface 43 protruding downward from the periphery of the end surface 42 . . On the inner side of the peripheral surface 43, a plurality of bosses (boss) 45 for screwing the plurality of screws 44 for fixing the case body 28 and the cap member 29 through the plurality of mounting holes 34 of the case body 28 are formed.

In the center of the lower surface of the end portion 42, a heat conduction portion 46 protruding toward the box body 28 is integrally formed, and a planar mounting surface 47 for mounting the light emitting module 23 is formed on the lower surface of the heat conduction portion 46. A plurality of mounting holes 48 are formed on it. An annular restricting portion 49 is protrudingly formed on the upper surface of the end surface portion 42 , and the heat conduction sheet 22 is attached inside the restricting portion 49 . As the restricting portion 49 , the upper surface of the end surface portion 42 may be dented in accordance with the shape of the heat conduction sheet 22 .

A plurality of key grooves 50 are formed on the peripheral surface portion 43 . Each wedge groove 50 is formed in a substantially L-shape having a vertical groove 50 a connected to the upper surface of the cap member 29 and formed in the vertical direction, and a horizontal groove 50 b at the lower portion of the peripheral surface 43 . It is formed along the circumferential direction of the peripheral surface portion 43 . Furthermore, a plurality of wedges 51 are protrudingly formed between the plurality of wedge grooves 50 on the peripheral surface portion 43 . In addition, in the present embodiment, three wedge grooves 50 and three wedges 51 are each provided, but each may be at least two, and may be four or more each.

Further, the heat conduction sheet 22 is in close contact with the radiator 17 when the lamp device 18 is attached to the lighting fixture 11 , thereby efficiently conducting heat from the lamp device 18 to the radiator 17 . The heat conduction sheet 22 is formed into a disc shape by, for example, a silicone sheet and metal foils such as aluminum, tin, zinc, etc. On the end portion 42 and having elasticity, the metal foil is attached to the upper surface of the polysiloxane sheet. The frictional resistance of the surface of the metal foil is smaller than that of the silicone sheet. In addition, the heat conduction sheet 22 may be a polygon such as a hexagon other than a circle.

Furthermore, the light emitting module 23 includes: a substrate 53; a light emitting portion 54 formed on the lower surface of the substrate 53; a connector (connector) 55 mounted on the lower surface of the substrate 53; and a frame-shaped holder (holder) 56 for holding the substrate 53. and the heat conduction sheet 57 interposed between the substrate 53 and the mounting surface 47 of the heat conduction portion 46 of the lamp cap member 29 on which the substrate 53 is mounted.

The substrate 53 is formed in a flat plate shape, for example, from a material such as metal or ceramics having excellent thermal conductivity.

The light emitting unit 54 uses, for example, a light emitting element called a semiconductor light emitting element such as a light emitting diode (Light Emitting Diode, LED) element or an electroluminescence (Electroluminescence, EL) element as a light source. In this embodiment, an LED element is used as a light emitting element, and a chip on board (COB) method in which a plurality of LED elements are mounted on a substrate is adopted. That is, a plurality of LED elements are mounted on a substrate, and the plurality of LED elements are electrically connected in series by wire bonding, and a phosphor layer, which is a transparent resin such as silicone resin mixed with a phosphor, is used. To cover and seal multiple LED elements integrally. For the LED element, for example, an LED element that emits blue light is used, and a phosphor is mixed in the phosphor layer, and the phosphor is excited by part of the blue light from the LED element to emit yellow light. Therefore, the light emitting part 54 is constituted by the LED element, the phosphor layer, etc., and the surface of the light emitting part 54, that is, the surface of the phosphor layer becomes a light emitting surface from which white illumination light is emitted. Alternatively, a method may be employed in which a plurality of surface mount device (Surface Mount Device, SMD) packages with connection terminals on which LED elements are mounted are mounted on a substrate as the light emitting section.

The connector 55 is electrically connected with the light emitting element.

The bracket 56 holds the base plate 53, and is fixed by a plurality of screws 58 screwed to the plurality of mounting holes 48 of the heat conduction portion 46 of the lamp cap member 29 so as to sandwich the heat conduction sheet 57 between the heat conduction portion 46 of the lamp cap member 29 and the state of the substrate 53 . As a result, the substrate 53 is in close contact with the heat conduction portion 46 of the base member 29 via the heat conduction sheet 57 , thereby ensuring good thermal conductivity from the substrate 53 to the base member 29 .

As the heat conduction sheet 57, metal foils such as aluminum, tin, zinc, etc. can be used instead of, for example, silicone sheets. By using metal foil, the deterioration caused by heat is smaller than that of silicone sheet, so that the thermal conductivity can be maintained for a long time.

Furthermore, the optical component 24 includes a cylindrical reflector 60 . The reflector 60 is, for example, made of insulating synthetic resin, and is formed with a cylindrical light guide part 61. Or the diameter is continuously enlarged, and an annular cover portion 62 is formed at the lower end of the light guide portion 61 , and the annular cover portion 62 covers the periphery of the lower surface of the case body 28 . On the inner surface of the light guide part 61 and the lower surface of the cover part 62, for example, a reflective surface 63 with a high light reflectivity of white or a mirror surface is formed. As one method of forming the reflective surface 63, a vapor deposition method of aluminum or the like can be used. At this time, electrical insulation can be improved by masking the outer peripheral portion of the cover portion 62 to make it a non-evaporation surface.

The light guide part 61 protrudes into the cap member 29 through the lighting circuit 25 (circuit board 68 ) and the insertion hole 33 of the case 28 , and is arranged around the light emitting part 54 to face each other. On the outer peripheral surface of the light guide part 61 and in the middle part in the vertical direction, a substrate fitting part 64 fitted to the lighting circuit 25 (circuit board 68) is formed. The board holding part 65 of the lighting circuit 25 (circuit board 68 ) is held between the board supporting parts 36 and 37 of the board 28 .

On the cover portion 62 , a plurality of holding claws 66 supported by the respective optical component supporting portions 40 of the case body 28 are formed. Furthermore, as one embodiment, one holding claw 66 fits into the rib 40 a of one optical component support portion 40 , and the reflector 60 is locked by the case body 28 .

Furthermore, the reflector 60 is prepared in various types with different light distribution characteristics according to the required light distribution control of the lamp device 18, and one type corresponding to the required light distribution control of the lamp device 18 is selected from the various types. type to use. For example, FIG. 2 shows a lamp device 18 using a wide-angle reflector 60 having a wide light distribution. FIG. 6 shows a lamp device 18 using a mid-angle type reflector 60 whose light distribution is slightly narrower than that of the wide-angle type. The wide-angle reflector 60 is different from the medium-angle reflector 60 mainly in the shape of the light guide 61 , but the board fitting part 64 of the light guide 61 , the board pressing part 65 or the holding claw 66 of the cover part 62 etc. Both the wide-angle type and the medium-angle type are common, so the reflectors 60 of the wide-angle type and the medium-angle type can be accommodated in the frame body 21 together. In addition, the plurality of types with different light distribution characteristics of the reflector 60 include not only the wide-angle type and the middle-angle type, but also the narrow-angle type with narrow light distribution or other types.

Therefore, the substrate fitting portion 64 of the reflector 60 , the substrate pressing portion 65 , the holding claw 66 of the cover portion 62 , and the like are constituted as a common mounting portion 60 a having a common shape for types with different light distribution characteristics. Furthermore, the board|substrate support part 37 of the housing|casing 21, the optical component support part 40, etc. are comprised as the common mounted part 21a of the common shape to which the common mounting part 60a of the reflector 60 is mounted.

Furthermore, the type of the reflector 60 is not limited to the shape, and the light distribution control of the reflective surface 63 can also be carried out according to the light distribution characteristics. When it is set to white, the light distribution can be controlled widely. Control the light distribution narrowly. Furthermore, no matter which type of reflector 60 is selected, it can be accommodated together in the housing 21 and used.

Furthermore, the lighting circuit 25 includes, for example, a circuit for rectifying and smoothing commercial power supply voltage, and a DC/DC (Direct Current/Direct Current, DC/DC) converter (converter) having switching elements that switch at a high frequency of several kHz to hundreds of kHz. ), etc., constitute a power supply circuit that outputs constant current DC power. The lighting circuit 25 includes a circuit board 68 and circuit components 69 that are a plurality of electronic components mounted on the circuit board 68 .

The circuit board 68 is formed in an annular shape in which the upper side of the light guide portion 61 of the reflector 60 penetrates through the central portion and a circular opening 70 into which the board fitting portion 64 fits is formed. The outer diameter of the circuit board 68 is formed in such a size that it fits into the board support portion 36 of the case 28 . At the edge of the opening 70 is formed a notch 71 which is a wiring hole through which the wiring guide 38 of the case 28 is inserted.

The lower surface of the circuit board 68 is a mounting surface 68a on which discrete (discrete) parts having conductive wires among the circuit components 69 are mounted, and the upper surface is a wiring pattern surface 68b formed with a wiring pattern (pattern) connected to discrete parts. Lead wire of parts and mount surface mount parts among lighting circuit parts.

Of the circuit components 69 mounted on the mounting surface 68 a of the circuit board 68 , at least one of large-sized components protruding from the circuit board 68 , heat-generating components with a large amount of heat, and components with weak heat resistance such as electrolytic capacitors (condensers) One, all of them are preferably mounted on the outer side of the circuit board 68 . On the mounting surface 68 a of the circuit board 68 , a connector 69 a connected to the light emitting module 23 via an electric wire 73 is mounted at a position near the notch 71 . Further, on the ring-shaped circuit board 68 , components that become noise sources such as switching elements are mounted at positions spaced apart from the position of the power supply input portion on the opposite side in the circumferential direction.

In addition, the circuit board 68 is arranged on the upper side in the case body 28 in a state where the wiring pattern surface 68b faces the flat plate portion 31 of the case body 28 in parallel. The circuit components 69 mounted on the mounting surface 68 a of the circuit board 68 are disposed between the peripheral surface portion 32 of the case 28 and the light guide portion 61 and the cover portion 62 of the reflector 60 .

A plurality of pins 72 electrically connected to the circuit board 68 are pressed into the respective insertion holes 35 of the case body 28 to vertically protrude upward from the case body 28 . That is, the plurality of lamp pins 72 vertically protrude from the upper surface of the lamp head 30 . The plurality of lamp pins 72 include at least two lamp pins 72 for power input, and may also include two lamp pins 72 for dimming signals or one lamp pin 72 for grounding (earth). That is, as long as there are at least two lamp pins 72 for power supply, the other lamp pins 72 may not exist or be connected to the circuit board 68, and a dummy lamp that is press-fitted and fixed to the insertion hole 35 of the case body 28 may also be used. feet (dummy pin). Moreover, the lamp pins 72 can also be pressed into the insertion holes 35 of the box body 28 and electrically connected to the circuit board 68 by wires, or the lamp pins 72 can be erected on the circuit board 68 and directly connected to the circuit board 68 .

Furthermore, the output terminal of the DC power supply of the lighting circuit 25 is electrically connected to the connector 55 of the light emitting module 23 through the wire 73 . For the electric wire 73, for example, a connector-attached electric wire equipped with connectors 73a and 73b at both ends is used. The connector 69a of the circuit part 69. The electric wires 73 pass through the circuit board 68 through the wiring passage 39 of the wiring guide portion 38 .

Furthermore, the translucent cover 26 is made of, for example, synthetic resin or glass in a disk shape so as to have translucency and diffusion, and is attached to the case 28 so as to cover the opening 28 a. On the peripheral portion of the upper surface of the light-transmitting cover 26, an embedded portion 75 is formed, and the embedded portion 75 is embedded in the inner periphery of the peripheral surface portion 32 of the box body 28, and a plurality of locking claws 76 are formed on the embedded portion 75. Each locking claw 76 is locked in each installation groove 41 of the peripheral surface 32 of the box body 28 . Each holding claw 66 holding the reflector 60 is sandwiched between the fitting portion 75 and each optical component supporting portion 40 in a state where each locking claw 76 is locked to each mounting groove 41 . In addition, the optical component support portion 40 of the box body 28 may not be used (in this case, the optical component support portion 40 may also be replaced with a rib for reinforcement), and the optical component support portion 40 may be covered by the embedded portion 75 of the light-transmitting cover 26 and the circuit board 68. The clip holds the optics 24 .

On the periphery of the lower surface of the light-transmitting cover 26, finger hooks 77 including a plurality of protrusions are protruded at multiple places on the circumference of the light-transmitting cover 26, for example, at two places, and a finger hook portion 77 including a plurality of protrusions is formed at one place. A triangular mark (mark) 78 for the installation position of the lighting fixture 11 is displayed. The shape of the finger hook portion 77 is arbitrary, but it is preferably a shape that does not spoil the appearance (inconspicuous) and does not interfere with light distribution, and is easy to handle when attaching and detaching the lamp device 18 as described later.

In addition, the light distribution control of the lamp device 18 can also be performed through the translucent cover 26 , and different types of light distribution characteristics can be used according to the light distribution control required by the lamp device 18 . For example, there is a difference in the degree of diffusion of the light-transmitting cover 26, or whether there is a Fresnel lens (Fresnel lens) or not.

Furthermore, in the lamp device 18 configured in this way, the lighting circuit 25 is disposed in the case 28, and is disposed in the cap member 29 at a position closer to the cap 30 side than the position of the lighting circuit 25 in the case 28. The light emitting module 23 is attached to the lamp cap member 29 in a thermally bonded manner. The light guide portion 61 of the reflector 60 is disposed in the opening 70 of the circuit board 68 and the insertion hole 33 of the case 28 , and the lighting circuit 25 inside the case 28 is covered and shielded by the cover portion 62 of the reflector 60 .

In addition, the input power (power consumption) of the light emitting module 23 of the lamp device 18 of the present embodiment is 20W to 25W, and the total light beam is 1100lm to 1650lm.

Next, as shown in FIGS. 7 and 8 , the fixture body 15 of the lighting fixture 11 also serves as a reflector, and is formed to open downward. A flange portion 81 protruding laterally is formed at a lower end of the appliance body 15 , and a fitting hole 82 is formed at an upper surface of the appliance body 15 . At one place on the inner peripheral surface of the fixture main body 15 , a triangular mark 83 indicating the mounting position of the lamp device 18 is provided.

Furthermore, the socket 16 includes, for example, a socket body 85 made of insulating synthetic resin and formed in a ring shape, and a plurality of terminals (not shown) arranged in the socket body 85 .

In the center of the socket body 85, an insertion opening 86 through which the base member 29 of the lamp device 18 is inserted is formed. A plurality of connecting grooves 87 into which the lamp pins 72 of the lamp device 18 are inserted are formed in the shape of long holes along the circumferential direction on the lower surface of the socket body 85 .

A plurality of wedge grooves 88 are formed on the inner peripheral surface of the socket body 85 . Each wedge groove 88 is formed in a substantially L-shape having a vertical groove 88 a formed in the vertical direction and a horizontal groove 88 b formed in the circumferential direction on the upper side of the socket body 85 . . Furthermore, a plurality of wedges 89 are protrudingly formed between the plurality of wedge grooves 88 on the inner peripheral surface of the socket body 85 . The wedge grooves 88 and wedges 89 correspond to the wedges 51 and wedge grooves 50 of the lamp device 18 , so that the lamp device 18 can be detachably attached to the lamp socket 16 .

Each terminal is disposed on the upper side of each connection groove 87 , and the lamp device 18 is installed on the lamp holder 16 and each lamp pin 72 inserted into each connection groove 87 is electrically connected.

Furthermore, the radiator 17 is formed of a material such as metal such as cast aluminum, ceramics, or resin excellent in heat dissipation, for example. The radiator 17 has a cylindrical base 91 and a plurality of radiator fins (fins) 92 protruding radially from the periphery of the base 91 .

A circular protruding portion 93 is formed on the lower surface of the center portion of the base portion 91 to close the lower surface of the base portion 91 , and a planar contact surface 94 is formed on the lower surface of the protruding portion 93 .

A plurality of mounting portions 95 are formed around the base portion 91 of the radiator 17 , and mounting springs 96 for mounting the lighting fixture 11 to the installed portion 12 are mounted to the mounting portions 95 .

On the upper surface of the heat sink 17, a mounting plate 99 is mounted. On the mounting plate 99, a terminal board 97 for a power supply and a terminal board 98 for a dimming signal are mounted.

In addition, in the lighting fixture 11 , the fitting hole 82 of the fixture body 15 is fitted around the protruding portion 93 of the radiator 17 , and the fixture body 15 is sandwiched between the radiator 17 and the lamp holder 16 and fixed by screws. On the upper surface of the insertion opening 86 of the lamp socket 16, the contact surface 94 of the radiator 17 is exposed and arranged.

Next, assembly of the lamp unit 18 will be described.

The heat conduction sheet 22 and the light emitting module 23 are installed on the base member 29 . The wire 73 connected to the connector 55 of the light emitting module 23 is introduced into the case body 28 through the insertion hole 33 , and the lamp cap member 29 is screwed to the case body 28 .

Insert the lighting circuit 25 into the case body 28, fit the cutout portion 71 of the circuit board 68 into the wiring guide portion 38, fit the peripheral portion of the circuit board 68 into the board support portion 36 of the case body 28, and make the inner periphery of the circuit board 68 The side upper surface is in contact with the substrate supporting portion 37 . Furthermore, for example, the lamp pins 72 and the circuit board 68 are connected by wrapping or the like, which are press-fitted in advance or subsequently press-fitted into the case body 28 . When the lighting circuit 25 is inserted into the case 28 , the wire 73 is passed through the wiring passage 39 of the wiring guide 38 and connected to the connector 69 a on the mounting surface 68 a side of the circuit board 68 .

Insert the reflector 60 into the box body 28, insert the light guide part 61 of the reflector 60 into the opening 70 of the circuit board 68 and the insertion hole 33 of the box body 28, and insert the substrate fitting part 64 of the light guide part 61 into the circuit The opening 70 of the substrate 68 allows the substrate pressing portion 65 of the light guide 61 to abut against the circuit substrate 68 . Furthermore, the holding claw 66 of the reflector 60 is arranged at a position facing the optical component support portion 40 of the case 28 .

The translucent cover 26 is inserted into the opening 28 a of the box body 28 , and the locking claws 76 of the translucent cover 26 are locked in the installation groove 41 of the box body 28 . As a result, the fitting portion 75 of the translucent cover 26 abuts against the holding claw 66 of the reflector 60 and is pressed against the optical component supporting portion 40 , and the holding claw 66 is sandwiched between the fitting portion 75 and the optical component supporting portion 40 , and The circuit board 68 is pressed against the board supporting parts 36 and 37 by the board pressing part 65 of the reflector 60, and the circuit board 68 can be sandwiched and held between the board pressing part 65 and the board supporting parts 36 and 37, thereby enabling easy assembly. .

Therefore, the light-transmitting cover 26 is installed in the case body 28 , and the circuit board 68 and the reflector 60 are sandwiched and held between the case body 28 and the light-transmitting cover 26 .

Next, attachment of the lamp device 18 to the lighting fixture 11 will be described.

Insert the lamp unit 18 from the lower surface opening of the appliance body 15 , align the mark 78 displayed on the lamp unit 18 with the mark 83 displayed on the inner surface of the appliance body 15 , push the lamp unit 18 up and insert it into the lamp socket 16 .

Thus, at first, the cap member 29 of the lamp device 18 is inserted into the insertion opening 86 of the lamp socket 16, and then each wedge 89 of the lamp socket 16 enters the longitudinal groove 50a of each wedge groove 50 of the lamp cap member 29, and the lamp cap member 29 Each wedge 51 enters the longitudinal groove 88a of each wedge groove 88 of the lamp holder 16, and each lamp pin 72 of the lamp device 18 is inserted into each corresponding connecting groove 87 of the lamp holder 16, and then, the upper surface of the lamp cap member 29 passes through the heat conducting sheet 22 And abut against the contact surface 94 of the radiator 17 . At this time, the heat conduction sheet 22 abuts against the contact surface 94 of the radiator 17 and is compressed.

In a state where the lamp device 18 is pressed against the radiator 17, the lamp device 18 is rotated in the mounting direction. When this lamp device 18 is rotated and operated, even if the space (space) between the peripheral surface of the lamp device 18 and the inner surface of the appliance body 15 is reduced by fingers, by hooking the finger from the light-transmitting cover 26 from the lower surface The protruding finger hook portion 77 can still easily rotate the light device 18 .

By rotating the lamp device 18 toward the installation direction, each wedge 89 of the lamp holder 16 enters into the transverse groove 50b of each wedge groove 50 of the lamp cap member 29 and is hooked, and each wedge 51 of the lamp cap member 29 enters each wedge of the lamp holder 16. The horizontal groove 88b of the groove 88 is hooked and the lamp device 18 is attached to the lamp socket 16 . Furthermore, each lamp pin 72 of the lamp device 18 moves in each connection groove 87 of each lamp socket 16 , and contacts and is electrically connected to each terminal disposed on the upper side of each connection groove 87 .

And, in the installed state of the lamp device 18, the upper surface of the cap member 29 of the lamp device 18 is in close contact with the contact surface 94 of the heat sink 17 via the heat conduction sheet 22, that is, the heat sink 17 can be efficiently connected from the lamp device 18 to the heat sink 17. Conducts heat well.

Moreover, when detaching the lamp device 18 from the luminaire 11, at first, the lamp device 18 is rotated in a direction opposite to that of the installation, so that each wedge 89 of the lamp holder 16 is in the longitudinal groove of each wedge groove 50 of the lamp cap member 29. 50a, and each wedge 51 of lamp cap member 29 moves in the longitudinal groove 88a of each wedge groove 88 of lamp holder 16, and each lamp pin 72 moves in each connection groove 87 of each lamp holder 16, thereby leaves each connection groove Each terminal arranged on the upper side of 87. Then, the lamp device 18 is moved downward, so that each lamp pin 72 is separated from each connecting groove 87 of each lamp holder 16, and each wedge 89 of the lamp holder 16 is separated from the vertical groove 50a of each wedge groove 50 of the lamp cap member 29, and the lamp cap The wedges 51 of the member 29 disengage from the vertical grooves 88 a of the wedge grooves 88 of the socket 16 , and the base member 29 disengages from the insertion opening 86 of the socket 16 , whereby the lamp device 18 can be detached from the socket 16 .

Next, lighting of the lamp device 18 will be described.

When power is supplied to the lighting circuit 25 from the power line through the terminal board 97, the terminals of the lamp socket 16, and the lamp pins 72 of the lamp device 18, lighting power is supplied from the lighting circuit 25 to the light emitting elements of the light emitting module 23, and the light emitting elements are turned on. The light emitted from the light emitting unit 54 by turning on the light emitting element travels through the light guide unit 61 of the reflector 60 , passes through the translucent cover 26 , and exits from the lower surface opening of the instrument body 15 .

Moreover, when lighting, the heat generated by the light-emitting elements of the light-emitting module 23 is mainly efficiently conducted from the substrate 53 of the light-emitting module 23 via the heat-conducting sheet 57 to the heat-conducting portion 46 of the cap member 29 that is thermally bonded, and from the cap member The heat conduction part 46 of 29 efficiently conducts heat to the heat sink 17 closely attached to it through the heat conduction sheet 22, and then dissipates heat from the surface of the heat sink 17 including the plurality of heat dissipation fins 92 into the air.

In addition, a part of the heat conducted from the lamp device 18 to the radiator 17 is conducted to the fixture main body 15 , the plurality of mounting springs 96 , and the mounting plate 99 , and is also dissipated into the air from these components.

Furthermore, the heat generated by the lighting circuit 25 is conducted to the case body 28 or the light-transmitting cover 26 , and is dissipated into the air from the surface of the case body 28 or the light-transmitting cover 26 .

In the lamp device 18 of the present embodiment configured as described above, by accommodating the lighting circuit 25 and the reflector 60 in the case 28 and attaching the translucent cover 26 , it is possible to sandwich the case 28 and the translucent cover 26 . The circuit board 68 and the reflector 60 are held so that they can be easily assembled.

Moreover, the circuit board 68 is only sandwiched between the box body 28 and the light-transmitting cover 26 without screwing, etc., but the wiring guide part 38 from the box body 28 is inserted through the cutout part 71, so the circuit board 68 can be By being locked against the case body 28, it is possible to reliably prevent the electric wire 73 from falling off or disconnected.

Furthermore, even with the configuration in which the light guide portion 61 of the reflector 60 is fitted into the opening 70 at the center of the circuit board 68, since the wiring guide portion 38 of the case 28 can form the wiring path 39 penetrating the circuit board 68, Therefore, the electric wire 73 which connects the light emitting module 23 and the lighting circuit 25 can also be wired. Furthermore, since the wiring guide portion 38 is inserted through the notch 71 of the circuit board 68 , the electric wire 73 does not contact the corner of the notch 71 , and the electric wire 73 can be protected.

Moreover, since the inner peripheral surface side of the wiring passage 39 of the wiring guide part 38 communicates with the insertion hole 33 of the case body 28, it is not necessary to make the electric wire 73 pass through the small hole. It only needs to move to the wiring passage 39 after the insertion hole 33 of the assembly, so that the assembly workability can be improved. Moreover, even if the inner peripheral surface side of the wiring passage 39 of the wiring guide 38 opens to the insertion hole 33 of the case body 28, it is closed by inserting the reflector 60 through the insertion hole 33 and is formed in a cylindrical shape. The wiring passage 39 is therefore also able to hold the wire 73 within the wiring passage 39 .

Thus, according to the lamp device 18 of this embodiment, the wiring guide part 38 of the case 28 can be used both for the formation of the wiring passage 39 through which the electric wire 73 passes, and for preventing rotation of the circuit board 68, and can reduce the number of parts. For simplification, the electric wire 73 connects the light emitting module 23 and the connector 69 a of the mounting surface 68 a of the circuit substrate 68 .

In addition, the shape and location of the wiring guide portion 38 are not particularly limited, as long as the circuit board 68 can be inserted to form the wiring passage 39, it may be of any shape and may be provided at any location. For example, the wiring guide 38 is inserted through the notch 71 formed at the edge of the opening 70 of the circuit board 68 , but a hole may be formed between the outer diameter side and the inner diameter side of the circuit board 68 and inserted through the hole. department. Also in this case, it is only necessary to form the wiring passage 39 through which the electric wire 73 can pass.

In addition, as the optical component 24, not only the reflector 60 but a lens, a prism (prism), a light guide member, etc. can also be used, and these members can also be combined.

In the lamp device 18 of the present embodiment configured as described above, desired light distribution control can be obtained only by the lamp device 18 .

To provide the lamp device 18 controlled to have a wide light distribution, as shown in FIG. 2 , it is only necessary to use a reflector 60 having a wide-angle type shape.

To provide a lamp device 18 controlled to have a slightly narrower light distribution than the wide light distribution using the wide-angle reflector 60 of FIG. 2, as shown in FIG. Can.

These wide-angle reflectors 60 are different from the medium-angle reflectors 60 mainly in the shape of the light guide 61 , but the board fitting part 64 of the light guide 61 and the board pressing part 65 or the holding claws 66 of the cover part 62 are different from each other. Both the wide-angle type and the medium-angle type are common, so the reflectors 60 of the wide-angle type and the medium-angle type can be accommodated in the frame body 21 together.

In this way, reflectors 60 of different shapes depending on the light distribution characteristics can be housed together in the housing 21. Therefore, by selecting an arbitrary reflector 60 from reflectors 60 with different light distribution characteristics, only the lamp device 18 can be used. Get the light distribution control you need.

Moreover, by selecting the translucent cover 26 with different light distribution characteristics, desired light distribution control can also be obtained.

In this case, the reflector 60 is selected according to the desired light distribution control, and the basic reflector 60 is used in common, and the translucent cover 26 having different light distribution characteristics is selected and combined to adjust the desired light distribution. Alternatively, the reflector 60 and the translucent cover 26 are both replaced and combined to obtain desired light distribution control.

Furthermore, desired light distribution control can also be obtained by selecting reflectors 60 having different light distribution characteristics of the reflective surface 63 .

At this time, the shape of the reflector 60 is selected according to the desired light distribution control, and the basic shape is shared, and the reflector 60 having the reflective surface 63 with different light distribution characteristics can be selected to adjust to the desired light distribution. .

Furthermore, desired light distribution control can be obtained by arbitrarily combining reflectors 60 having different shapes of light distribution characteristics, translucent covers 26 having different light distribution characteristics, and reflecting surfaces 63 having different light distribution characteristics.

Thus, according to the lamp device 18 of this embodiment, desired light distribution control can be obtained only with the lamp device 18 . Therefore, in the lighting fixture 11 using the lamp device 18 , the lighting fixture itself does not need to perform light distribution control, and the simplification and miniaturization of the lighting fixture 11 can be achieved.

Moreover, since the optical parts 24 having different light distribution characteristics according to the light distribution characteristics can be housed together in the frame body 21, the structures other than the optical parts 24 of the lamp device 18 can be shared, as long as the optical parts to be combined are selected. 24 can provide the lamp device 18 with the required light distribution control.

Furthermore, the lamp device 18 can sandwich and hold the circuit board 68 of the lighting circuit 25 between the frame body 21 and the optical component 24 by incorporating the lighting circuit 25 and the optical component 24 into the frame body 21 and further attaching the translucent cover 26 . Thereby, the optical component 24 can be pressed against the frame body 21 side by the light-transmitting cover 26 and sandwiched and held between the frame body 21 and the light-transmitting cover 26 or between the circuit board 68 and the light-transmitting cover 26, so there is no need to place the circuit board 68 or the optical parts 24 are respectively screwed to the fixing of the frame body 21 and the like, so that they can be easily assembled. The structure of the lamp device 18 is similar to the above-mentioned embodiments. When it is applied to the lamp device 18 using reflectors 60 having different light distribution characteristics, it can obtain an advantageous effect that can improve the assemblability. Even when the optical component 24 having a specific light distribution characteristic is used for the lamp device 18 having the optical component 24 having a specific light distribution characteristic, the advantageous effect of improving the assemblability can be obtained in the same manner.

In addition, as the optical component 24, it is not limited to the reflector 60, You may use a lens, a prism, a light guide member, etc., You may combine these members.

Furthermore, since the space for accommodating the lighting circuit 25 in the housing 21 is reduced in order to house the optical component 24 in the housing 21 , the mounting area of the circuit board 68 may be insufficient, for example, when increasing output. In this case, a part or all of the circuit boards 68 may be arranged in parallel along the vertical direction, which is the light irradiation direction, to increase the mounting area.

Furthermore, a flexible substrate may be used as the circuit substrate of the lighting circuit 25 . When a flexible substrate is used, by arranging the flexible substrate along the inner side of the peripheral surface portion 32 of the case 28, the mounting area of the flexible substrate can be increased, and high output can also be accommodated.

Although some embodiments of the present invention have been described, these embodiments are merely examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in other various forms, and various omissions, substitutions, and changes are possible without departing from the gist of the invention. These embodiments or modifications thereof are included in the scope of the present invention.

Claims (6)

1. lamp device is characterized in that comprising:

Light emitting module has light-emitting component in one side;

Lamp circuit has the circuit substrate and the circuit component of ring-type, and said circuit substrate is provided with the one side peristome in opposite directions with said light emitting module, and said circuit component is installed on the one side at least of said circuit substrate;

Optical element is disposed at the said peristome of said circuit substrate, and the light from said light-emitting component is controlled; And

Framework; A side opening, and have lamp head in the another side side, accommodate said light emitting module, said lamp circuit and said optical element in inside; And has the distribution guide portion; Said distribution guide portion is inserted the said circuit substrate of logical said lamp circuit, forms to make the distribution path that electric wire passes and make said circuit substrate spline, and said electric wire connects the said circuit component of the one side of said light emitting module and said circuit substrate.

2. lamp device according to claim 1 is characterized in that,

Edge portion at the said peristome of said circuit substrate is formed with notch, and said distribution guide portion engages with said notch.

3. lamp device according to claim 1 is characterized in that,

Said circuit substrate is remained between said framework and the said optical element by double team.

4. lamp device according to claim 1 and 2 is characterized in that,

Diffuser is pushed said optical element and is remained in said case side.

5. lamp device according to claim 1 is characterized in that,

The diffuser that comprises the said opening that is disposed at said framework,

Said lamp circuit is lit a lamp said light-emitting component,

Said optical element basis has different light distribution characteristics from the distribution controls of the light of said light-emitting component.

6. ligthing paraphernalia is characterized in that comprising:

Claim 1 or 2 described lamp devices; And

Lamp socket is installed said lamp device.

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