CN203202661U

CN203202661U - Lamp device and illumination appliance

Info

Publication number: CN203202661U
Application number: CN 201220285549
Authority: CN
Inventors: 木宫淳一
Original assignee: Toshiba Lighting and Technology Corp
Current assignee: Toshiba Lighting and Technology Corp
Priority date: 2011-07-29
Filing date: 2012-06-14
Publication date: 2013-09-18
Anticipated expiration: 2022-06-14
Also published as: JP2013030414A

Abstract

The utility model provides a lamp device capable of preventing a lighting device against temperature increase, and an illumination appliance provided with the lamp device. The lamp device (1) comprises an illuminant (2) provided with a plurality of LED bare chips (6) used as illuminating elements; a frame body (3) provided with a pedestal portion (12) and a cylinder portion (13) in an irregular cylinder shape; a plurality of heat dissipation fins (14) arranged at specified intervals on the whole outer peripheral face (13a) of the cylinder portion (13) in a manner of extending from the periphery (14a) side to the same circumference; a lamp head body (4) provided with a base plate portion (29), a protruded portion (30) with a bottom in a cylinder shape and a pair of electrode pins (24); and the lighting device (5) accommodated in at least one of the protruded portion (30) and the cylinder portion (13). Through the pair of electrode pins (24), the lamp device is powered up, and therefore, the LED bare chips (6) are lighted.

Description

Lamp device and ligthing paraphernalia

Technical field

An embodiment of the present utility model relates to a kind of with lamp (lamp) device and the ligthing paraphernalia of light-emitting component as light source.

Background technology

With light emitting diode (Light Emitting Diode, LED) in the lamp device as light source, known have use by International Electrotechnical Commission (International Electrotechnical Commission, IEC) the lamp device of Gui Ding GX53 type lamp head structure.For example form following structure, that is, possess: lamp head has pair of electrodes pin (pin); Framework is installed on upper surface side with this lamp head; Led module (module) (illuminator) is installed on the lower face side of this framework; Light transmission cover (cover) covers the lower surface of framework and installs; And ignition device, be configured in the lamp head, and the outer peripheral face of framework has radiating fin (fin).(for example with reference to patent documentation 1).

The heat that led module and ignition device produce mainly conducts to framework, and is dispersed into space outerpace from radiating fin.Herein, because led module is installed on the lower face side of framework, so the heat that led module produces can conduct to framework rapidly, and is dispersed into space outerpace immediately from radiating fin.

Relative therewith, to compare with led module, the heat that ignition device produces is difficult to be distributed.Namely, because lamp head and framework form cylindric respectively, and between heating part of ignition device etc. and lamp head and framework, there is corresponding gap (space), therefore the heat that produces of ignition device will be conducted across described gap (space), thereby be difficult to conduct to lamp head and framework.

The prior art document

Patent documentation

Patent documentation 1: the Japan Patent spy opens 2011-70974 communique (the 5th page, the 1st figure)

In order to improve thermal conductivity, for example consider thermally conductive resin is inserted in the described gap (space), but thermally conductive resin is relatively expensive, and has corresponding weight, therefore, if in described gap (space), thermally conductive resin is set, then has following shortcoming, that is: look the use amount of thermally conductive resin, the cost of lamp device rises (cost up) and weight increases.

And, when forming lamp head by metal, similarly have the shortcoming that cost rises and weight increases of lamp device, and have the shortcoming that is electrically insulated that must realize lamp head and electrode pin and ignition device etc.

The utility model content

The purpose of embodiment of the present utility model is, the lamp device that a kind of temperature that can suppress ignition device rises and the ligthing paraphernalia that possesses this lamp device are provided.

The lamp device of embodiment of the present utility model is to have illuminator, framework, radiating fin, body and ignition device and constitute.

Illuminator is for example to have that semiconductor light-emitting elements forms as light-emitting component.Semiconductor light-emitting elements is light emitting diode (LED) or organic electroluminescent (Electroluminescence, EL) element etc.

Framework is to have to possess base (base) portion of installed surface and non-tube portion just cylindraceous in the one side side and form.Installed surface in base portion is installed illuminator.Tube portion is from the side-prominent formation of the another side of base portion, and possessing peristome with the base portion opposition side.

Radiating fin comprises the complete cycle of the tube portion that spreads all over framework, has predetermined distance and a plurality of radiating fins of arranging each other.And, described radiating fin be with from the outer peripheral face of tube portion towards making peripheral side arrive the mode on the same circumference with the direction of the prominent set direction quadrature of tube portion and establishing.

Body is provided in a side of on the framework, and has baseplate part, protuberance and pair of electrodes pin and form.Baseplate part is located at the peristome of the tube portion of framework, and has the outstanding size bigger than the minimum dimension the predetermined distance between radiating fin from the end face of the prominent set direction of the tube portion of radiating fin.Protuberance is outstanding formation from baseplate part towards foreign side, and formed the round-ended cylinder shape.The pair of electrodes pin is located on the baseplate part in the mode that clips protuberance.

Ignition device is housed in in the tube portion of the protuberance of body and framework at least one.And described ignition device forms, and is powered via the pair of electrodes pin, thereby light-emitting component is lit a lamp.

The lamp device of embodiment of the present utility model comprises illuminator, framework, a plurality of radiating fin, body, ignition device; Illuminator has light-emitting component; Framework has base portion and non-tube just cylindraceous portion, described base portion possesses the installed surface that described illuminator is installed in the one side side, non-described tube just cylindraceous portion is from the side-prominent formation of the another side of described base portion, and possessing peristome with described base portion opposition side; A plurality of radiating fins with from the outer peripheral face of described tube portion towards make peripheral side arrive mode on the same circumference with the direction of the prominent set direction quadrature of described tube portion, spread all over complete cycle and have predetermined distance each other and arrange; Body has baseplate part, protuberance and the pair of electrodes pin of round-ended cylinder shape is arranged, described baseplate part is located at the peristome of described tube portion, and have the outstanding size bigger than the minimum dimension the described predetermined distance between described radiating fin from the end face of the prominent set direction of the described tube portion of described radiating fin, the described protuberance that the round-ended cylinder shape is arranged is outstanding formation from described baseplate part towards foreign side, and described pair of electrodes pin is located on the described baseplate part in the mode that clips described protuberance; Ignition device is housed in in described protuberance and the described tube portion at least one, is powered via described pair of electrodes pin, thereby described light-emitting component is lit a lamp.

In some embodiments, the described baseplate part of described body forms the essentially rectangular shape, and is provided with described pair of electrodes pin along its long side direction.

The ligthing paraphernalia of embodiment of the present utility model comprises lamp device and the apparatus body of above-mentioned embodiment, and described apparatus body has the lamp socket that the described pair of electrodes pin of described lamp device electrically connects.

The effect of utility model

According to embodiment of the present utility model, because the tube portion of framework forms non-just cylindric, therefore the gap smaller of the tube portion of the ignition device of accommodating in the one or both in the tube portion of the protuberance of body and framework and framework, the thermal change that ignition device produces gets and easily conducts to a portion, and, it is big that the surface area of radiating fin becomes, and ventilate between radiating fin between the baseplate part of the end face of radiating fin and body, therefore the thermal change that conducts to a portion gets easily and distributes, thereby can expect that the ignition device temperature descends.

Description of drawings

Fig. 1 is the outline elevation of the lamp device of expression the 1st embodiment of the present utility model.

Fig. 2 is the approximate vertical view of the lamp device of expression the 1st embodiment of the present utility model.

Fig. 3 is the summary face upwarding stereogram of the lamp device of expression the 1st embodiment of the present utility model.

Fig. 4 is that the summary of the lamp device of expression the 1st embodiment of the present utility model decomposes side isometric view.

Fig. 5 is that the summary of the lamp device of expression the 1st embodiment of the present utility model decomposes face upwarding stereogram.

Fig. 6 is that the summary of the lamp device of expression the 1st embodiment of the present utility model decomposes top perspective view.

Fig. 7 is the approximate vertical view of the lamp device of expression the 2nd embodiment of the present utility model.

Fig. 8 is the summary face upwarding stereogram of the ligthing paraphernalia of expression the 3rd embodiment of the present utility model.

Fig. 9 is the partial cut outline elevation of the ligthing paraphernalia of expression the 3rd embodiment of the present utility model.

Reference numeral:

1,1A: lamp device

2: illuminator

3: framework

4: body

5: ignition device

The 6:LED bare chip

7,37: substrate

7a: the one side of substrate 7

8: dyke

9: sealing resin

10: notch

11: terminal

12: base portion

12a: bottom surface

12b: another side

12c: perisporium

12d: periphery

13: tube portion

13a: the outer peripheral face of tube portion 13

13b, 44: peristome

14,40: radiating fin

14a: the periphery of radiating fin 14

14b: end face

15: screw hole

16: through hole

17,51: screw

18: the connector wiring hole

19: the light transmission cover

19a: front surface portion

19b: side surface part

19c: fitting portion

20: the card claw stop

21: tab

22: insulating component

22a: the bottom surface of insulating component 22

22b: the lower surface of insulating component 22

23: the collar

23a:C word shape opening

24: electrode pin

25: leadout hole

26: the relaying terminal sets case

27: the lamp holder body

28: the lamp holder member

29: baseplate part

29a: the one side of baseplate part 29

30: protuberance

30a: the side of protuberance 30

31: matrix part

32: protuberance

33: installing hole

34: material is installed

35: opening

36: projection is installed

37a: the one side of substrate 37

38: electric parts

39: the wedge slot part

40a: base portion

40b: wide width part

41: ligthing paraphernalia

42: lamp base device

43: apparatus body

43a: lower end side

43b: upper end side

43c: outer surface

43d: inner face

45: flange part

46: upper plate portion

47,48: reinforced sheet

49: mounting spring

50: top board

50a: lower surface

52: terminal plate

H1: outstanding size

L1: minimum dimension

The specific embodiment

Below, with reference to accompanying drawing an embodiment of the present utility model is described.At first, the 1st embodiment of the present utility model is described.

Present embodiment indication lamp device 1 constitutes as shown in Figure 6 as Fig. 1.In Fig. 5, lamp device 1 is to have illuminator 2, framework 3, body 4 and ignition device 5 and form.

Illuminator 2 comprises known structure, that is: on a plate base 7, by chip on board (Chip On Board, COB) mode and a plurality of LED bare chips (bare chip) 6 as light-emitting component are installed.That is, a plurality of LED bare chips 6 for example are matrix (matrix) shape on the one side 7a of substrate 7 installs, and is for example surrounded by the dyke 8 that comprises silicone (silicone) resin, and covers by being filled in the sealing resin 9 in this dyke 8.

LED bare chip 6 for example forms in the mode of radiation blue light.Sealing resin 9 for example comprises the silicone resin of light transmission, and is mixed with not shown fluorophor, and described fluorophor will convert sodium yellow to from a part of wavelength of the blue light of LED bare chip 6 radiation.Illuminator 2 radiation white lights, described white light are to mix from LED bare chip 6 blue light that radiates and the sodium yellow of changing through the fluorophor wavelength.And LED bare chip 6 is followed the radiation of blue light and is produced heat.This heat conducts to substrate 7.

Substrate 7 for example is aluminium (Al) plate, and forms at four jiaos and have the roughly roughly square shape of the notch 10 of semicircle shape.And, at one side 7a LED bare chip 6 is installed via not shown insulating barrier, and is formed with not shown Wiring pattern (pattern).LED bare chip 6 is connected in series by Wiring pattern, and is connected in one side 7a and goes up set terminal 11.

Framework 3 has base portion 12, tube portion 13 and radiating fin 14 as shown in Figure 6, and these parts are for example one-body molded by aluminium diecasting (aluminium die cast).

Base portion 12 forms the cylindrical shape at the end as shown in Figure 5.That is, base portion 12 is to have as the perisporium 12c of the bottom surface 12a of circle of one side and the low clearance on the 12a periphery of this bottom surface to form.And, on the 12a of bottom surface, be formed with 4 screw holes 15.Not shown screw behind the notch 10 of the substrate 7 of slotting logical illuminator 2 is threaded in this screw hole 15.Substrate 7 is clipped by the head of bottom surface 12a and screw and is fixed in bottom surface 12a.That is, the bottom surface 12a side of base portion 12 becomes the installed surface that illuminator 2 is installed.Substrate 7 with one side 7a be that the back side 7b (shown in Figure 6) of opposition side connects airtight in bottom surface 12a.

And, on the 12a of bottom surface, being formed with 4 through holes 16, described 4 through holes 16 are through to the another side 12b (shown in Figure 6) of opposition side of the bottom surface 12a of base portion 12.Screw 17 is inserted into this through hole 16 respectively.4 screws 17 are installed on framework 3 with body 4 described later.And, on the 12a of bottom surface, form 1 connector (connector) wiring hole 18 equally.

And, at perisporium 12c light transmission cover 19 is installed.At the short transverse pars intermedia of the inner peripheral surface of perisporium 12c, be formed with not shown all grooves of required width.Week, groove for example was to be formed with for 1 week by incision (undercut) processing by the boring bar tool (boring bar tool) of lathe.Light transmission cover 19 is limited to all grooves and installs.

Light transmission cover 19 is by having the transparent of light transmission or having Merlon (polycarbonate, PC) the synthetic resin material of Denging and to have formed the end flat cylindric of light diffusing.Light transmission cover 19 has the bottom, be the discoideus 19a of front surface portion with at the set side surface part 19b cylindraceous of the outer peripheral edges portion of the 19a of this front surface portion, on side surface part 19b, as shown in Figure 6, be formed with fitting portion 19c, described fitting portion 19c is embedded in the inboard of the perisporium 12c of framework 3.On this fitting portion 19c, be formed with card claw stop 20, described card claw stop 20 is limited to all grooves of framework 3.

Card claw stop 20 is to form every 120 ° central angle with respect to the center of the 19a of front surface portion.The both sides of the Zhou Fangxiang of card claw stop 20 flexibly are limited to the mode of described all grooves with card claw stop 20 and cut.

And light transmission cover 19 on the peripheral part of the outer surface of the 19a of front surface portion, is equipped with the pair of right and left tab 21 of anti-skidding usefulness as shown in Figure 3.These tab 21 are that a plurality of kicks with required form such as spherical or hemispherical for example are adapted to required forms such as rectangle, and form and be people's the sentient size and shape of finger tip.When light transmission cover 19 was installed on framework 3, finger tip touched a pair of tab 21 and is supported, whereby, prevent or the light transmission cover 19 that reduces little shape light weight from finger tip landing or the phenomenon that departs from.

And the tube portion 13 of framework 3 forms from the another side 12b of base portion 12 is outstanding and forms the non-just cylindric of specific length, and possessing peristome 13b with base portion 12 opposition sides as shown in Figure 6.Tube portion 13 is with respect to the center of base portion 12 and be 180 ° of rotations and form symmetrically, and this peristome 13b shape forms the essentially rectangular shape.That is, the both sides of the long side direction of the outer peripheral face 13a of tube portion 13 are the plane, and the both sides of its short side direction are along circular-arc of the perisporium 12c of base portion 12.

A plurality of radiating fins 14 are established with the direction of the prominent set direction quadrature of tube portion 13 from the outer peripheral face 13a court of tube portion 13.Radiating fin 14 has the thickness of regulation, and forms rectangle or the rectangle roughly that arrives the periphery 12d of base portion 12 from the outer peripheral face 13a of tube portion 13.And, a plurality of radiating fins 14 as shown in Figure 2, () mode roughly uniformly-spaced spreads all over the complete cycle of a portion 13 and establishes to have predetermined distance in the periphery 12d of base portion 12 side.Therefore, described radiating fin 14 is that periphery 14a side with radiating fin 14 arrives the mode on the same circumference and forms.

Therefore the long side direction side of the essentially rectangular shape of the outer peripheral face 13a of tube portion 13 forms the plane, and the short side direction side forms circular-arc, looks the position with the distance of the periphery 12d of base portion 12 and different.Whereby, the surface area of a plurality of radiating fins 14 has nothing in common with each other, and is relatively large in the outer peripheral face 13a side on the plane of tube portion 13, and less relatively in circular-arc outer peripheral face 13a side.

In addition, radiating fin 14 also can not dashed forward and be established till the periphery 12d side that arrives base portion 12, but with regard to the viewpoint that adds high surface area, preferably with at least a portion arrive base portion 12 periphery 12d side mode and form.And radiating fin 14 also can not form rectangle or rectangle roughly, but is preferably formed equally to adding the rectangle of high surface area.And, radiating fin 14 also can be from the periphery 12d side of base portion 12 towards foreign side outstanding mode and forming, but with regard to the viewpoint of the size of framework 3, attractive in appearance or aesthetic appearance etc., preferably do not form towards prominent the establishing of foreign side from the periphery 12d side of base portion 12.And, radiating fin 14 set at interval or thickness etc. as long as suitably set in the mode of maximum performance heat dispersion.

In Fig. 6, framework 3 also has the insulating component 22 that is housed in the portion 13.Insulating component 22 is by polybutylene terephthalate (PBT) (polybutylene terephthalate, PBT) synthetic resin of resin etc. and form the roughly case shape that the end is arranged that embeds tube portion 13.The part of ignition device 5 described later is housed in the insulating component 22.

And, on the 22a of the bottom surface of insulating component 22, erect in opposed mode a pair of collar (collar) 23 be set.The a pair of collar 23 for the bottom that is pair of electrodes pin 24 described later insert respectively cylindric, the flat shape of its front forms roughly C word shape.

Make the bottom of each electrode pin 24 insert the collar 23, the collar 23 respectively, utilize the bottom surface 22a of insulating component 22 to press the following bottom of support electrode pin 24, and the not shown lead that makes winding (wrapping) be connected in each electrode pin 24 extend towards foreign side from C word shape opening 23a.This lead is connected in the input terminal of ignition device 5.

And, on the 22a of the bottom surface of insulating component 22, be provided with the leadout hole 25 that the not shown output line of ignition device 5 is derived.As shown in Figure 5, on the lower surface 22b of insulating component 22, be equipped with the relaying terminal opposite to each other with the connector wiring hole 18 of framework 3 and set case 26, described relaying terminal sets case 26 and sets not shown relaying terminal.The output line of ignition device 5 is connected in not shown relaying terminal.

In Fig. 4, body 4 is located at the peristome 13b side of the tube portion 13 of framework 3, is formed by lamp holder body 27 and lamp holder member 28 these two dividing bodies.Lamp holder body 27 is for example by the moulding of aluminium diecasting institute, and lamp holder member 28 is by the synthetic resin institute moulding of the polybutylene terephthalate (PBT) with electrical insulating property (PBT) resin etc.Lamp holder member 28 to be embedding the mode in the lamp holder body 27, forms along the shape of lamp holder body 27.

Lamp holder member 28 is equipped with pair of electrodes pin 24, and pair of electrodes pin 24 and lamp holder body 27 as metal are electrically insulated.And described lamp holder member 28 is inserted between lamp holder body 27 and the ignition device 5 and they is electrically insulated.

Lamp holder body 27 forms for the mode that constitutes GX53 type holder structure with its outer shape, and has: baseplate part 29 has plane one side (upper surface) 29a; And the protuberance 30 that the round-ended cylinder shape is arranged, from the central portion of the one side 29a of this baseplate part 29 towards the outstanding specific length that forms of foreign side.Baseplate part 29 forms roughly case shape, and the one side 29a side of described roughly case shape forms the essentially rectangular shape slightly littler than the peristome 13b of the tube portion 13 of framework 3.

Lamp holder member 28 has along the matrix part 31 of lamp holder body 27 inboards and protuberance 32, on the long side direction of the matrix part 31 that clips protuberance 32, is provided with the installation material 34 of the installing hole 33 with electrode pin 24.And electrode pin 24 is embedded into and is installed on installing hole 33.

And when the lamp holder member 28 that pair of electrodes pin 24 is installed embedded lamp holder bodies 27, a pair of installation material 34 to be becoming roughly same planar mode with one side 29a, and was exposed to set opening 35, opening 35 on the one side 29a of baseplate part 29 of lamp holder body 27.Whereby, pair of electrodes pin 24 is established in the modes of giving prominence to from the baseplate part 29 of lamp holder body 27 as shown in Figure 1.And pair of electrodes pin 24 clips protuberance 30 and establishes at the long side direction of the one side 29a of the essentially rectangular shape of baseplate part 29 as shown in Figure 2.Pair of electrodes pin 24 for example comprises brass, and its leading section forms major diameter.

In Fig. 5, in the inboard of lamp holder body 27, be provided with 4 projection (boss) 36 is installed, described 4 installation projectioies 36 have the screw hole that screw 17 is spirally connected.Be installed on this installation projection 36 by the screw 17 that will insert the through hole 16 that leads to framework 3, the lamp holder body 27 of body 4 is installed in the peristome 13b side of the tube portion 13 of framework 3, and framework 3 is able to integrated with body 4.

And, when body 4 and framework 3 are integrated, as shown in Figure 1, the upper surface 29a of baseplate part 29 has outstanding size H1 from the end face 14b of the prominent set direction of the tube portion 13 of radiating fin 14, and described outstanding size H1 is bigger than the minimum dimension L1 (shown in Figure 2) in the predetermined distance of 14 of radiating fins 14, radiating fin.That is, form baseplate part 29 in this way.

The described minimum dimension L1 that radiating fin 14, radiating fin are 14 as shown in Figure 2, for the size of 14 of the radiating fins 14 on the outer peripheral face 13a of tube portion 13, radiating fin, more than 3mm.That is, if described minimum dimension L1 is lower than 3mm, then radiating

fin

14,14 of radiating fins narrow down, and radiating

fin

14,14 of radiating fins are difficult to ventilation, and the heat dispersion of radiating fin 14 can descend.And, it is desirable to more than the 5mm from the described outstanding size H1 of the end face 14b meter of the radiating fin 14 of baseplate part 29.Like this, radiating

fin

14,14 of radiating fins are communicated to the upper surface 29a side of baseplate part 29.

In Fig. 6, ignition device 5 is to have foursquare substrate 37 roughly and be installed on the electric parts 38 on the one side 37a of this substrate 37 and form.And described ignition device 5 forms known lamp circuit,, converts AC power to dc source that is, and illuminator 2 is supplied with predetermined electric current so that LED bare chip 6 is lit a lamp.And ignition device 5 is contained in the major part of this electric parts 38 in the protuberance 30 of body 4, and other parts of ignition device 5 are housed in the tube portion 13 of framework 3 (insulating component 22).

The input terminal of ignition device 5 is connecting not shown lead, and described lead is wound in electrode pin 24, electrode pin 24 respectively.The lead-out terminal of ignition device 5 is connected in not shown relaying terminal as shown in Figure 5 via not shown output line, the set relaying terminal of lower surface 22b that described relaying terminal is provided in insulating component 22 sets in the case 26.Not shown relaying terminal is connected in the terminal 11 of illuminator 2 by the lead of not shown attached connector.

Lamp device 1 is installed on its body 4 in the lamp base device corresponding to GX53 type lamp holder.And, supply with AC power from lamp base device.In addition, on the side 30a of the protuberance 30 of body 4, as shown in Figure 1, be formed with the chimeric wedge slot part 39 of wedge protuberance set on the lamp base device.Wedge protuberance by lamp base device is embedded in wedge slot part 39, and lamp device 1 is fixed in lamp base device.

Next, the effect of the 1st embodiment 1 of the present utility model is narrated.

Ignition device 5 is powered via pair of electrodes pin 24 when the lamp base device that body 4 is installed is supplied with AC power.And, generate dc source from AC power and move, the LED bare chip 6 of illuminator 2 is supplied with predetermined electric current.Whereby, LED bare chip 6 is lit a lamp, from illuminator 2 radiation white lights.White light sees through light transmission cover 19 and the plane of illumination of foreign side or shone thing etc. is thrown light on.

And illuminator 2 is followed and is lit a lamp and generate heat.This heat conducts to substrate 7, and conducts to the base portion 12 of the framework 3 that is tightly locked with substrate 7.And, to radiating fin 14, and be distributed to space outerpace from the periphery 14a side of radiating fin 14 from base portion 12 heat conduction.And, between the upper surface 29a (lamp base device) of the baseplate part 29 of the end face 14b of radiating fin 14 and body 4, there is the gap that is equivalent to outstanding size H1 shown in Figure 1, radiating

fin

14,14 of radiating fins are communicated to this gap, therefore the thermal convection current of 14 of radiating fins 14, radiating fin is to this clearance side, whereby, the heat that conducts to radiating fin 14 is distributed.And the substrate 7 of illuminator 2 and framework 3 are formed by the big aluminium of thermal conductivity, so the heat that produces of illuminator 2 is conducted rapidly and is distributed to space outerpace.Whereby, the rising of the temperature of illuminator 2 is suppressed.

And ignition device 5 is when lighting a lamp, and the heating quantitative change of electric parts 38 is big.This heat conducts to the tube portion 13 of framework 3 via insulating component 22, and then conducts to radiating fin 14 and be distributed to space outerpace.Herein, tube portion 13 forms non-positive toroidal, the shape of its peristome 13b (shape of the baseplate part 29 of body 4) forms the essentially rectangular shape, so the gap of ignition device 5 and tube portion 13 diminishes at the short side direction of peristome 13b, and the heat of ignition device 5 is conducted to a portion 13 rapidly.And the surface area of the radiating fin 14 that the outer peripheral face 13a on the plane of tube portion 13 upward forms is relatively large on the short side direction of peristome 13b, and it is big that area of dissipation becomes.And as mentioned above, radiating

fin

14,14 of radiating fins are communicated to the gap of baseplate part 29 sides of body 4, and the heat that conducts to radiating fin 14 is distributed.Whereby, the heat that ignition device 5 produces is distributed to space outerpace rapidly via radiating fin 14, and the temperature of ignition device 5 rises and alleviated.

In the lamp device 1 of present embodiment, the tube portion 13 of framework 3 forms the tubular of essentially rectangular shape, so gap smaller of the tube portion 13 of ignition device 5 and framework 3, the thermal change that ignition device 5 produces gets and easily conducts to a portion 13, and, it is big that the area of dissipation of radiating fin 14 becomes, and, radiating

fin

14,14 of radiating fins are ventilated between the upper surface 29a (lamp base device) of the baseplate part 29 of the end face 14b of radiating fin 14 and body 4, therefore has following effect, that is, the generation heat of ignition device 5 is distributed rapidly, thereby the temperature that can suppress ignition device 5 rise.

And, even in the gap of ignition device 5 and the tube portion 13 of framework 3, fill thermally conductive resin, because this gap is little, thereby also can reduce the loading of thermally conductive resin, have therefore that the cost that can suppress lamp device 1 rises and the effect of weight increase.

And, in the body 4, the baseplate part 29 that establish in the peristome 13b place of the tube portion 13 of framework 3 forms the essentially rectangular shape, pair of electrodes pin 24 is along the long side direction setting of baseplate part 29, therefore has following effect, that is, can easily be formed on the GX53 type body 4 that establish in tube portion 13 (peristome 13b) place of the essentially rectangular shape of non-positive toroidal.

In addition, in the present embodiment, illuminator 2 is to use substrate 7 and forms, but also can not use substrate 7, and forms in the mode on the bottom surface 12a of the base portion 12 that LED bare chip 6 is located at framework 3.That is, also the base portion 12 of framework 3 can be used as substrate.

And the tube portion 13 of framework 3 is made as non-just cylindric, and the shape of its peristome 13b forms the tubular of essentially rectangular shape, but also can form rectangle, elliptical shape or the tubular of rectangular-shaped (cydariform) etc. of neck part is arranged.

Next, the 2nd embodiment of the present utility model is described.

Fig. 7 is the lamp device 1A of expression the 2nd embodiment of the present utility model.This lamp device 1A is in the lamp device 1 of the 1st embodiment, is provided with the radiating fin 40 of section T type at the outer peripheral face 13a of the tube portion 13 of framework 3.That is, radiating fin 40 is that the front end at base portion 40a has wide width part 40b and forms, and surface area is greater than radiating fin 14.

According to present embodiment, the area of dissipation of the radiating fin 40 of section T type is big, therefore has following effect, namely, the heat of illuminator 2 and ignition device 5 generations can be distributed to space outerpace rapidly, whereby, have the effect of the temperature rising that can suppress illuminator 2 and ignition device 5.Therefore and radiating fin 40 has wide width part 40b at its front end, has following effect,, when lamp device 1A accident drops, can suppress the distortion of radiating fin 40 or to people's injury etc. that is.And radiating fin 40 along the above-below direction formation convection current of lamp device 1A, thereby has the effect that can improve radiating effect by base portion 40a and the formed space of wide width part 40b by adjacency.

Next, the 3rd embodiment of the present utility model is described.

Fig. 8 and Fig. 9 are the ligthing paraphernalias of expression the 3rd embodiment of the present utility model, and Fig. 8 is approximate three-dimensional map, and Fig. 9 is the partial cut outline elevation.In addition, for the part mark identical with Fig. 1 to Fig. 3 identical symbol and omission explanation.

Fig. 8 and ligthing paraphernalia 41 shown in Figure 9 are the Down lamps (down light) that are embedded in ceiling etc.In Fig. 9, ligthing paraphernalia 41 is to possess apparatus body 43 and lamp device 1 shown in Figure 1 and constitute, and described apparatus body 43 has the lamp base device 42 as lamp socket.

Apparatus body 43 is by the moulding of aluminium diecasting institute, and form roughly casing cylindraceous, described casing has peristome 44 and towards flange (flange) portion 45 of the outstanding ring-type of foreign side at lower end side 43a, and has upper plate portion 46 at upper end side 43b, described upper plate portion 46 closed upper end side 43b and form flat condition.And, at the outer surface 43c of apparatus body 43, be formed with reinforced sheet 47, reinforced sheet 48 of a plurality of radiating fins of double as etc.And then, at the lower end side 43a of outer surface 43c, be provided with a pair of mounting spring 49, described a pair of mounting spring 49 and flange part 45 between clamping ceiling etc.And the inner face 43d of apparatus body 43 for example forms reflecting surface by white application.

At the outer surface of upper plate portion 46, by screw 51 grades top board 50 is installed.Top board 50 as shown in Figure 8,50a is installed with terminal plate 52 at its lower surface.On terminal plate 52, connecting respectively from the not shown power line of external power source and the not shown lead that is connected in lamp base device 42.

And, as shown in Figure 9, at the inner face of upper plate portion 46, by not shown screw lamp base device 42 is installed.Lamp base device 42 is by installing GX53 type lamp holder, and namely the well-known structure of the body 4 of lamp device 1 forms.And, lamp device 1 is installed in lamp base device 42.The protuberance 30 (not shown) of the body 4 of lamp device 1 is inserted the not shown inserting hole of lamp base device 42, and its a pair of electrode pin 24 (not shown) is inserted after the not shown a pair of connecting hole of lamp base device 42, rotate this lamp device 1, whereby, the wedge protuberance of lamp base device 42 is embedded in the wedge slot part 39 (not shown) of body 4 and is fixed in lamp base device 42, and pair of electrodes pin 24 is electrically connected at the not shown a pair of lamp bracket of lamp base device 42.

When butted line plate 52 was supplied with external power source, the LED bare chip 6 of lamp device 1 was lit a lamp and is radiated white light, and this white light is from 19 outgoing of light transmission cover.The reverberation that white light becomes direct sunshine or reflected by the inner face 43d of apparatus body 43, and from peristome 44 outgoing of apparatus body 43, with to plane of illumination for example floor throw light on.

Lamp device 1 have with framework 3 the essentially rectangular shape tubular tube portion 13 mode and form, the temperature that therefore can suppress illuminator 2 and ignition device 5 rises.Whereby, have following effect, that is, lamp device 1 is able to long lifetime, and can provide and (maintenance) operation of safeguarding of replacing of lamp device 1 etc. can be set at long-standing ligthing paraphernalia 41.

Claims

1. lamp device is characterized in that comprising:

Illuminator has light-emitting component;

Framework, have base portion and non-tube just cylindraceous portion, described base portion possesses the installed surface that described illuminator is installed in the one side side, and non-described tube just cylindraceous portion is from the side-prominent formation of the another side of described base portion, and is possessing peristome with described base portion opposition side;

A plurality of radiating fins, with from the outer peripheral face of described tube portion towards make peripheral side arrive mode on the same circumference with the direction of the prominent set direction quadrature of described tube portion, spread all over complete cycle and have predetermined distance each other and arrange;

Body, have baseplate part, protuberance and the pair of electrodes pin of round-ended cylinder shape are arranged, described baseplate part is located at the peristome of described tube portion, and have the outstanding size bigger than the minimum dimension the described predetermined distance between described radiating fin from the end face of the prominent set direction of the described tube portion of described radiating fin, the described protuberance that the round-ended cylinder shape is arranged is outstanding formation from described baseplate part towards foreign side, and described pair of electrodes pin is located on the described baseplate part in the mode that clips described protuberance; And

Ignition device is housed in in described protuberance and the described tube portion at least one, is powered via described pair of electrodes pin, thereby described light-emitting component is lit a lamp.

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

The described baseplate part of described body forms the essentially rectangular shape, and is provided with described pair of electrodes pin along its long side direction.

3. ligthing paraphernalia is characterized in that comprising:

Claim 1 or 2 described lamp devices; And

Apparatus body has the lamp socket that the described pair of electrodes pin of described lamp device electrically connects.