CN202647297U - Straight-tube lamp and lighting fixture - Google Patents

Straight-tube lamp and lighting fixture Download PDF

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Publication number
CN202647297U
CN202647297U CN 201220252561 CN201220252561U CN202647297U CN 202647297 U CN202647297 U CN 202647297U CN 201220252561 CN201220252561 CN 201220252561 CN 201220252561 U CN201220252561 U CN 201220252561U CN 202647297 U CN202647297 U CN 202647297U
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CN
China
Prior art keywords
light source
source cell
lamp
straight
pipe type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201220252561
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Chinese (zh)
Inventor
贵家学
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Lighting and Technology Corp
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Toshiba Lighting and Technology Corp
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Publication of CN202647297U publication Critical patent/CN202647297U/en
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Expired - Lifetime legal-status Critical Current

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  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The utility model relates to a straight-tube lamp and a lighting fixture employing the same. According to the straight-tube lamp, a light source is collected in a straight-tube cover easily, and heat generated by the light source is emitted to the outside. The straight-tube lamp comprises a light source unit (20), lamp caps (30 and 40) and a straight-tube cover (a transparent cover) (10), wherein the light source unit (20) is provided with a light source part (LED)(21); the lamp caps (30 and 40) are fixed at two ends of the light source unit (20) respectively; the straight-tube cover (10) is formed in the following way, that is, a transparent part is arranged at least on a front surface (10c); and the light source unit (20) is collected by emitting light from the transparent part, and when the two ends are supported and the front surface is downward, the interval between the central side of a rear surface (10b) and the light source unit (20) is thinner than that between the two ends of the rear surface (10b) and the light source unit (20).

Description

Straight pipe type lamp and ligthing paraphernalia
Technical field
Embodiment of the present utility model relates to a kind of straight pipe type lamp (lamp) of light source and ligthing paraphernalia that uses this lamp of accommodating in straight tube cover (cover).
Background technology
Used the fluorescent lamp of straight pipe types and the lighting devices that use this fluorescent lamp, described fluorescent lamp is extruded with respectively the lamp base (pin) of a pair of G13 type lamp holder at two ends more in the past.
In recent years, propose a kind of profile and use the straight pipe type lamp of light emitting diode (Light Emitting Diode, LED) in the past straight tube shape and light source, to replace the fluorescent lamp of described straight pipe type.For example, sometimes to be that the substrate that will LED be installed is equipped on gripper shoe (plate) upper and take in to the straight tube cover for the straight pipe type lamp.At this moment, be dispersed into outside the lamp in order to make the heat that is produced by light source, sometimes make the gripper shoe that is equipped with light source be embedded in the straight tube cover.(for example, with reference to " patent documentation 1 ").
The prior art document
Patent documentation
Patent documentation 1: Japanese Patent Laid-Open 2010-40504 communique
But, when making gripper shoe be embedded in the straight tube cover, gripper shoe is inserted operation difficult in the straight tube cover.
The utility model content
Problem to be solved in the utility model is the ligthing paraphernalia that a kind of straight pipe type lamp is provided and uses this lamp, and the operation of light source being accommodated to the straight tube cover of described straight pipe type lamp is easy, and will be dispersed into the outside by the heat that light source produces.
The straight-tube lamp of embodiment has the light source cell (unit) of the light source portion of being equipped with.Two ends at described light source cell are fixed wtih respectively lamp holder.And described straight-tube lamp has the straight tube cover that consists of in the following manner, that is: has the transmittance section at front surface at least, and to accommodate described light source cell from the mode of this transmittance section outgoing radiating light, and two ends supported and make front surface towards below state under, compare with the interval of described light source cell with the both ends side of rear surface, the central portion side of rear surface and the interval of described light source cell are narrower.
(effect of utility model)
According to the utility model, can expect that the operation that light source is accommodated to the straight tube cover is easy, and will be dispersed into the outside by the heat that light source produces.
Description of drawings
Fig. 1 is the front view of the straight pipe type lamp of expression the 1st embodiment.
Fig. 2 is the A-A cutaway view of the straight pipe type lamp of expression the 1st embodiment.
Fig. 3 is the exploded perspective view of the straight pipe type lamp of expression the 1st embodiment.
Fig. 4 is the cutaway view that makes the central portion of front surface under the installment state of below of the straight pipe type lamp of expression the 1st embodiment.
Fig. 5 is the cutaway view that makes the end of front surface under the installment state of below of the straight pipe type lamp of expression the 1st embodiment.
Fig. 6 is the cutaway view that makes the central portion of rear surface under the state of below of the straight pipe type lamp of expression the 1st embodiment.
Fig. 7 is the stereogram of the ligthing paraphernalia of the expression straight pipe type lamp that uses the 1st embodiment.
The explanation of symbol:
1: the straight pipe type lamp
10: the light transmission cover
10a: fastener
10b: rear surface
10c: front surface
20: light source cell
21: light source portion
22: substrate
23: supporter
23a: installed surface
23b: the back side
23c: pedestal part
23d: distribution controls section
23e: holding section
23f: installation portion
24: installation component
24a: bottom
24b: maintaining part
30: the lamp holder of power supply usefulness
31: body
31a: bottom surface sections
31b: side surface part
31c: through hole
32: power supply terminal
32a: axial region
32b: connecting portion
33: terminal
40: earthy lamp holder
50: fixed mechanism
100: ligthing paraphernalia
110: apparatus body
120: ignition device
130,140: lamp socket
L1: the central portion side of rear surface 10b and the interval of light source cell 20
L2: the both ends side of rear surface 10b and the interval of described light source cell 20
The specific embodiment
Below, referring to figs. 1 through Fig. 6 the 1st embodiment is described.
As shown in Figure 1 to Figure 3, straight pipe type lamp 1 to be forming straight pipe type with the luminous tube of straight pipe type fluorescent lamp as pipe range and caliber with degree, and has: the light transmission cover 10 as the straight tube cover has light transmission; Light source cell 20 is housed in this light transmission cover 10; And the lamp holder 30, earthy lamp holder 40 of power supply usefulness, be individually fixed in the two ends of this light source cell 20.
Light source cell 20 comprises: as the LED21 of light source portion; The substrate 22 of strip has predetermined distance ground along long side direction a plurality of LED21 is installed; And supporter 23, installation base plate 22.
As LED21, can use chip on board (Chip On Board, COB) mode, namely, with LED element or electroluminescent (Electroluminescence, EL) a plurality of semiconductor light-emitting elements of element etc. are installed on the substrate 22, for example can adopt following structure: utilize yellow luminescent coating to cover the semiconductor light-emitting elements that is installed in the blueness on the substrate 22, thus the outgoing white light.And LED21 also can adopt following manner,, a plurality of surface mounted components (Surface Mount Device, SMD) packaging body (package) of the attached connecting terminal that is equipped with led chip is installed at substrate 22 that is.
Substrate 22 can use pottery (ceramic) substrate, expoxy glass (glass epoxy) substrate, metal substrate etc.
Supporter 23 is the metals that utilize thermal conductivity good, for example the extrusion molding of aluminium and forming.Supporter 23 comprises: base (base) 23c of section, and a side has the installed surface 23a that sets substrate 22, and has back side 23b at opposite side, and described back side 23b forms with the inner face of light transmission cover 10 roughly with the semi-cylindrical of shape; The a pair of distribution controls 23d of section, the 23d of distribution controls section from the both side edges of pedestal part 23c along oblique outstanding formation, and establish in the mode that expands each other; And holding section 23e, holding section 23e, along the long side direction of supporter 23 and be located at respectively between back side 23b and the 23d of distribution controls section, the 23d of distribution controls section.The 23d of distribution controls section and holding section 23e form along long side direction when making supporter 23 extrusion molding.And each end at the long side direction of supporter 23 is formed with respectively a pair of installation portion 23f.
Substrate 22 is fixed in the installed surface 23a of supporter 23 by installation component 24.Installation component 24 consists of integratedly from bottom 24a a pair of maintaining part 24b, maintaining part 24b, and maintaining part 24b, maintaining part 24b have elasticity with respect to bottom 24a.In the following manner installation component 24 is installed on the 23d of distribution controls section, that is, substrate 22 is being equipped under the state of installed surface 23a, make a maintaining part 24b towards the configuration of holding section 23e side, and another maintaining part 24b disposes towards installed surface 23a side.The 23d of distribution controls section constitutes, and strutting between with maintaining part 24b, maintaining part 24b under the state that installation component 24 is installed on the 23d of distribution controls section, by its reaction, produces elastic force towards approximating direction between maintaining part 24b, maintaining part 24b.By this elasticity, another maintaining part 24b can press on installed surface 23a with substrate 22.The 23d of distribution controls section for example projects to till the degree of the height dimension of the outstanding LED21 of substrate 22.Whereby, the relatively short light towards horizontal of the distance till can making from LED21 to light transmission cover 10 reflects forward face side, inhibition and the distribution controls of the dazzle (glare) in the time of can carrying out from transverse observation.And then the 23d of distribution controls section also has the function that keeps installation component 24.
Lamp holder 30, lamp holder 40 are installed on the installation portion 23f of supporter 23 by the fixed mechanism 50 of screw etc.That is, lamp holder 30, lamp holder 40 are fixed in light source cell 20 two ends.In addition, fixed mechanism 50 can use jointing material, other known fixing means of rivet (rivet) or cement (cement) etc.
The A-A cutaway view of Fig. 3 presentation graphs 1, lamp holder 30 has: body 31 cylindraceous roughly comprise resin and a side opening, and body 31 has bottom surface sections 31a and from the periphery of the bottom surface sections 31a outstanding side surface part 31b that forms integratedly; And a pair of power supply terminal 32, power supply terminal 32, the outstanding formation from body 31 towards foreign side.Power supply terminal 32, power supply terminal 32 have: axial region 32a, and outstanding from the bottom surface sections 31a of body 31; And connecting portion 32b, give prominence to towards direction away from each other from the front end of axial region 32a.
And lamp holder 30 is formed with the through hole 31c of mechanism for installing 50 at bottom surface sections 31a.By the outside from lamp holder 30 fixed mechanism 50 is installed on installation portion 23f, thereby lamp holder 30 can be fixed in the end of supporter 23.
And lamp holder 40 has except replacing power supply terminal 32 terminal 33, adopts the structure same with lamp holder 30.That is, lamp holder 40 is fixed in the end of light source cell 20 too by not shown through hole and fixed mechanism.In addition, terminal 33 mainly is the member that straight pipe type lamp 1 is installed on the lamp socket of ligthing paraphernalia, also can be used as ground connection (earth) terminal of straight pipe type lamp 1.
Light transmission cover 10 is the straight tube shape of both ends open, and integral body comprises translucent material.In the present embodiment, light transmission cover 10 is formed by having diffusible translucent Merlon (polycarbonate).Be provided with a pair of fastener 10a in the inboard, described a pair of fastener 10a be with along long side direction in opposite directions mode and outstanding formation integratedly.As shown in Figure 3, light source cell 20 enters the mode in the 23e of holding section with fastener 10a and is housed in the light transmission cover 10.And by the locking of holding section 23e and fastener 10a, the position of light source cell 20 in light transmission cover 10 is restricted.Particularly, light source cell 20 is restricted towards the movement of light exit direction and the movement take the long side direction of lamp as the direction of rotation of axle., in light transmission cover 10, take fastener 10a as the boundary, a side of accommodating light source cell 20 is made as rear surface 10b herein, will be made as front surface 10c from a side of the radiating light institute outgoing of light source cell 20.That is, light transmission cover 10 has the transmittance section at front surface 10c at least, and to accommodate light source cell 20 from the mode of this transmittance section outgoing radiating light.
Fig. 4 is the cutaway view that makes the central portion of front surface 10c under the installment state of below of straight pipe type lamp 1, and Fig. 5 is the cutaway view of the end under this state.As shown in Figure 2, the end of light transmission cover 10 is by being supported from the outstanding support portion 31c that forms of the bottom surface sections 31a of lamp holder 30, under the state that light transmission cover 10 is supported at two ends, because of the deadweight center side towards the downward direction bending.Therefore, light transmission cover 10 two ends supported and make front surface 10c towards below state under, such as Fig. 4 and shown in Figure 5, compare with the interval L2 of described light source cell 20 with the both ends side of rear surface 10b, the central portion side of rear surface 10b and the interval L1 of light source cell 20 are narrower.The gap that forms between the rear surface 10b of the back side of light source cell 20 23b and light transmission cover 10 can hinder the effect that makes the heat that is produced by light source cell 20 conduct to light transmission cover 10, so the gap is more little better.In the present embodiment, mainly distributed from the substantial middle section of light transmission cover 10 by the heat that light source cell 20 produces.Herein, the both ends of straight pipe type lamp 1 are by lamp holder 30,40 obturations of lamp holder, the easiest the reaching a high temperature of center side of light source cell 20.Therefore, preferably adopt to make the central portion of light source cell 20 than the structure of the easy heat radiation in both ends, that is, make the back side 23b of supporter 23 narrower than both ends at central portion with the interval of the rear surface 10b of light transmission cover 10.In the present embodiment, especially at central portion, the back side 23b of light source cell 20 contacts with the rear surface 10b of light transmission cover 10, thereby improves the thermal diffusivity from central portion.
Fig. 6 is the cutaway view that makes the central portion of rear surface 10b under the state of below of straight pipe type lamp 1.The fastener 10a of light transmission cover 10 is supported by the holding section 23e of light source cell 20, is formed with the gap between 23b and the rear surface 10b overleaf.Herein, fastener 10a and holding section 23e form along long side direction, and fastener 10a is supported by holding section 23e along long side direction, therefore can not produce the bending that causes because of deadweight.Namely, straight pipe type lamp 1 is limited to holding section 23e by fastener 10a, thereby with respect to light source cell 20 and be restricted towards the movement of rear surface 10b direction, and make rear surface 10b towards below state under, between the back side 10b of light source cell 20 and light transmission cover 10, spread all over long side direction and form roughly unidimensional gap.Owing to there is the size relationship that forms this gap, the operation of therefore light source cell 20 being inserted light transmission cover 10 is easy, and make front surface 10c towards below state under, light transmission cover 10 can be crooked because of deadweight, the gap of the back side 23b of light source cell 20 and the rear surface 10b of light transmission cover 10 can with minimum at central portion, preferably contacted mode consists of, thereby the heat that produced by light source cell 20 is distributed from the central portion of light transmission cover 10.
Fig. 7 represents the two lamps of the straight pipe type lamp embedded illuminating apparatus of type, and namely ligthing paraphernalia 100, use two straight pipe type lamps 1 in this ligthing paraphernalia 100.
Ligthing paraphernalia 100 possesses: the rectangular apparatus body 110 of lower surface style of opening, and embedding is arranged on the ceiling surface; Two groups of lamp sockets 130, lamp socket 140 dispose in opposite directions at the two ends of the long side direction of this apparatus body 110, and the end of each straight pipe type lamp 1 is installed respectively; And ignition device 120, be disposed in the apparatus body 110, straight pipe type lamp 1 is lit a lamp.Installation straight pipe type lamp 1 one distolateral distolateral lamp sockets 130 are non-powered side and are the ground connection side, straight pipe type lamp 1 another another distolateral distolateral lamp socket 140 is installed is power supply usefulness.In addition, there is the situation of the grounding connection that is also used as straight pipe type lamp 1 and installation in the lamp socket of ground connection side 130, only carries out the situation of the installation of straight pipe type lamp 1, and arbitrary situation all can.
Lamp socket 130, lamp socket 140 uses the rotation installing type of installing by following manner, that is: from front end face inserted terminals and the power supply terminal 32 of described lamp socket 130, lamp socket 140, and centered by the tubular axis of straight pipe type lamp 1 and half-twist.
And, ignition device 120 shown in Figure 7 is transfused to commercial ac power source, convert alternating electromotive force to direct current power, make this direct current power by a pair of power supply terminal of lamp socket 140 of power supply usefulness and a pair of power supply terminal 32 of straight pipe type lamp 1 LED21 be lit a lamp, from the light transmission light transmission cover 10 of LED21 and towards the direction of illumination irradiation of the regulation of ligthing paraphernalia 100 belows.
These embodiments are illustration only, are not intended to limit the scope of utility model.These novel embodiments can other various forms be implemented, and can carry out various omissions, replacement, change in the scope of the purport that does not break away from utility model.These embodiments or its distortion are included in the scope or purport of utility model, and are included in the utility model put down in writing in claims and the impartial scope thereof.

Claims (5)

1. straight pipe type lamp is characterized in that comprising:
Light source cell is equipped with light source portion;
Lamp holder is individually fixed in the two ends of described light source cell; And
The straight tube cover, to have the transmittance section at front surface at least, to accommodate described light source cell from the mode of described transmittance section outgoing radiating light, and two ends supported and make described front surface towards below state under, compare with the interval of described light source cell with the both ends side of rear surface, the narrower mode in the central portion side of described rear surface and the interval of described light source cell consists of.
2. straight pipe type lamp according to claim 1 is characterized in that,
The substantial middle section of described straight tube cover contacts with described light source cell.
3. straight pipe type lamp according to claim 1 and 2 is characterized in that,
Described light source cell has the holding section along long side direction, described straight tube cover has the fastener that is limited to described holding section along long side direction, by described holding section and described fastener, described straight tube cover is with respect to described light source cell and the rotary moving take long side direction as axle is restricted.
4. straight pipe type lamp according to claim 3 is characterized in that,
Described straight tube cover is by making described fastener be limited to described holding section, thereby with respect to described light source cell and be restricted towards the movement of rear surface direction, and make described rear surface towards below state under, described fastener is limited to described holding section, and between the back side of described light source cell and described straight tube cover, spread all over long side direction and form roughly unidimensional gap.
5. ligthing paraphernalia is characterized in that comprising:
Apparatus body;
Lamp socket is provided in the described apparatus body; And
Each described straight pipe type lamp is installed on described lamp socket in the claim 1 to 4.
CN 201220252561 2011-08-11 2012-05-30 Straight-tube lamp and lighting fixture Expired - Lifetime CN202647297U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011175910A JP2013041670A (en) 2011-08-11 2011-08-11 Straight tube type lamp and lighting fixture
JP2011-175910 2011-08-11

Publications (1)

Publication Number Publication Date
CN202647297U true CN202647297U (en) 2013-01-02

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CN 201220252561 Expired - Lifetime CN202647297U (en) 2011-08-11 2012-05-30 Straight-tube lamp and lighting fixture

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CN (1) CN202647297U (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014182893A (en) * 2013-03-18 2014-09-29 Sharp Corp Luminaire
JP6198431B2 (en) * 2013-04-04 2017-09-20 三菱電機株式会社 Lighting lamp
JP6431266B2 (en) * 2014-03-18 2018-11-28 浜井電球工業株式会社 Lighting device
JP2017050265A (en) * 2015-04-28 2017-03-09 株式会社アブラム Light-emitting diode type lighting device
JP2017050266A (en) * 2015-04-10 2017-03-09 株式会社アブラム Light-emitting diode type lighting device

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CX01 Expiry of patent term
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Granted publication date: 20130102