CN102628556A - Light-emitting diode (LED) anti-explosion lamp - Google Patents
Light-emitting diode (LED) anti-explosion lamp Download PDFInfo
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- CN102628556A CN102628556A CN2012100857326A CN201210085732A CN102628556A CN 102628556 A CN102628556 A CN 102628556A CN 2012100857326 A CN2012100857326 A CN 2012100857326A CN 201210085732 A CN201210085732 A CN 201210085732A CN 102628556 A CN102628556 A CN 102628556A
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- proof lamp
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Abstract
The invention relates to a light-emitting diode (LED) anti-explosion lamp. The LED anti-explosion lamp comprises LEDs, lenses, a radiator, an aluminum-based circuit board, a cover board, a supporting board, a protective shell, a driving circuit and an electric appliance box, wherein a plurality of high-power LEDs are arranged on the aluminum-based circuit board; the aluminum-based circuit board is arranged on the lower surface of the radiator; one lens is arranged on each high-power LED; and the lens is fixedly connected with the radiator through the supporting board and the cover board. The LED anti-explosion lamp adopts the radiating fin type radiator and utilizes the characteristic that the LEDs have small sizes, and the radiator serves as a constituent part of the protective shell, so the whole structure is simple and compact, the manufacturing cost is low, and the volume and the weight of the lamp are reduced. The LEDs are directly arranged below the radiating fins, so the heat conduction distance is short, the sectional area is large, and the heat transfer efficiency is improved. The strength of the glass lens is improved through toughening treatment; the additional protective shell is not required; the light distribution requirement in various occasions is met; and the lamp structure is simplified.
Description
Technical field
The present invention relates to a kind ofly, relate in particular to a kind of INCREASEDSAFETY LED explosion-proof lamp with the light fixture of LED as light source.
Background technology
Explosion-proof lamp is a kind of special light fixture, is used for explosive atmosphere.Be called type of explosion proof construc tion for preventing to light the various certain measures that explosive atmosphere on every side takes electrical equipment, comprise flameproof enclosure protection, INCREASEDSAFETY protection and essential safe type protection or the like (referring to CNS GB836.1-2010).Wherein, INCREASEDSAFETY is protected through light fixture is taked addition thereto, prevents that it from producing the possibility of dangerous temperature, electric arc and spark under the exceptional condition of normal operation or regulation.
LED is a kind of solid state light emitter, uses direct current supply, advantage such as have the light efficiency height, the life-span is long and volume is little, and along with the reduction of LED manufacturing cost, LED progressively is applied to explosion-proof lamp.Because the LED volume is less, optical system therefore easy to use changes light distribution, thereby improves the efficiency of light energy utilization, strengthens energy-saving effect.Simultaneously, less dimension of light source also helps reducing the overall volume of explosion-proof lamp.
Difference according to the application scenario; The light distribution requirements that various explosion-proof lamps need satisfy is difference to some extent also; Disclosing in the LED explosion-proof lamp design; Use reflector that has (like Chinese patent CN 201731301U) or lens (like Chinese patent CN 201615372U and CN 201615372U etc.) luminous intensity distribution; The polyhedron base that utilizes that has enlarges illumination zone (like Chinese patent CN 201715291U), also has some then not adopt any luminous intensity distribution measure (like Chinese patent CN 201757312U and CN 201212662Y).When the road lighting that is applied to explosive atmosphere, room lighting or deep hole illumination, be the raising illumination uniformity and the efficiency of light energy utilization, or also need the effective non-imaging optical system of design more reasonable in order to satisfy the requirement that cuts aspects such as light.
Heat radiation is the key issue that needs solution in the LED Design of Luminaires.In the design of the explosion-proof tool of disclosed LED, generally adopt the method for directly or indirectly dispelling the heat through guard shield.For example; Disclosed scheme such as Chinese patent CN 201187752Y and CN 201731301U uses heat pipe that the heat that LED produces is conducted to shell; The scheme of Chinese patent CN 201661912U and CN 200982560Y etc. utilizes cross-ventilation and shell conduction in the cavity that heat is transferred to the light fixture outside at first through being sealed in the fin conductive heat in the shell again.The structure more complicated of cooling system in the such scheme because the contact area of heat pipe or fin and shell is less, causes bigger thermal resistance, thereby influences the integral heat sink effect.In disclosed schemes such as Chinese patent CN 201661872U and CN 201443739U, LED is installed on the base with the shell one; Because thermal source is longer apart from the distance of the outer surface of shell; And the sectional area of heat transfer base is less, so heat transfer efficiency is still not high enough.
Summary of the invention
The present invention is intended to simplify the structure of LED explosion-proof lamp, reduces the volume and weight of explosion-proof lamp, the advantage that the LED light efficiency is high, volume is little can be fully used, and a kind of LED explosion-proof lamp is provided.
For realizing above-mentioned purpose; Technical scheme of the present invention is: a kind of LED explosion-proof lamp; Comprise LED; Lens, radiator, aluminium base circuit board, cover plate, gripper shoe, drive circuit and electric appliance box thereof are characterized in: several great power LEDs are installed on the aluminium base circuit board, and aluminium base circuit board is installed on the lower surface of radiator; On each great power LED lens are housed, and lens are fixedly connected on the radiator through gripper shoe and cover plate.
Radiator is made up of substrate, groups of fins and inside recessed light source cavity; And be integrative-structure, wherein, inwardly recessed light-source chamber body is positioned at the lower surface of substrate; LED and aluminium base circuit board are installed in the light source cavity; Groups of fins is positioned at the upper surface of substrate, and is corresponding with the installation region of LED, and the heat that LED is produced transfers to external environment condition through fin.
Lens are provided with the outer rim of cavity and protrusion; Housing surface is the light incidence surface; The composite surface that is the hemisphere face or the face of cylinder or the face of cylinder and free form surface, and be fixed on the downside surface of radiator through gripper shoe and cover plate, and the symmetry axis of LED light-emitting area overlaps with the symmetry axis of lens cavity.
Lens also as the transparent protective shield of explosion-proof lamp, are processed by the glass material that tempering is handled.
The junction at gripper shoe and radiator downside light source cavity edge and the junction of gripper shoe and each lens are respectively equipped with the first, two sealing ring, make LED and circuit board thereof and external isolation.
Electric appliance box is communicated with through the through hole that penetrates radiator base plate with the light source cavity, and the service cable of LED picks out from drive circuit, is connected to aluminium base circuit board after passing through hole, and sealing ring or packing matcrial are installed in the through hole.
The service cable introducing device is housed on the protecting sheathing of electric appliance box, is used for the sealing of clamping cables and electric appliance box.Be provided with seal at the protecting sheathing of electric appliance box and the junction of radiator base plate, make drive circuit and the external isolation of LED.
Contact-making switch is installed in the electric appliance box, and when the protecting sheathing of electric appliance box was opened, the power supply circuits of outside input were cut off.
The invention has the beneficial effects as follows:
The present invention adopts the radiator of fin form, and utilizes the little characteristics of LED size, with the building block of radiator as protecting sheathing, and the overall structure compact, manufacturing cost is lower, and helps reducing the volume and weight of light fixture.LED is directly installed on the below of fin, and heat conduction distance is short, sectional area is big, helps improving heat transfer efficiency.Handle the intensity that improves glass lens through tempering, need not re-use extra protective cover, when satisfying the light distribution requirements of various occasions, simplified the structure of light fixture.
Description of drawings
Fig. 1 is a structure of the present invention office cutaway view;
Fig. 2 is that partial view is looked on the left side of Fig. 1;
Fig. 3 is a stereogram of the present invention;
Fig. 4 is the heat spreader structures stereogram;
Fig. 5 is to use the structural front view of the LED explosion-proof lamp of light chopping lens;
Fig. 6 is the stereogram of Fig. 5.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
To shown in Figure 3, LED explosion-proof lamp of the present invention is by LED1 like accompanying drawing 1, and parts such as lens 2, radiator 3, aluminium base circuit board 4, cover plate 5, gripper shoe 6 and drive circuit 8 and protecting sheathing 7 thereof are formed.
Led light source is relatively more responsive to temperature, need take rational cooling measure, and the junction temperature of LED is remained in course of normal operation in the specified scope.In explosive atmosphere, LED1 and drive circuit 8 thereof are installed in the protection housing 7 of sealing, and the caloric requirement that LED1 produces is dispersed in the external environment condition through protecting sheathing 7.The present invention adopts the radiator 3 of fin form, utilizes the little characteristics of LED size, with the building block of radiator 3 as explosion-proof lamp protecting sheathing 7.LED1 is placed the seal chamber 303 of radiator 3, and drive circuit 8 is installed in the electric box 11.
For improving radiating efficiency, adopt the multiple light courcess form, a plurality of LED1 disperse to be installed on the aluminium base circuit board 4, and aluminium base circuit board 4 further is installed in cavity 303 surfaces of radiator 3.
As shown in Figure 4, radiator 3 is made up of substrate 301, groups of fins 302 and inside recessed light source cavity 303, and three parts are structure as a whole.Groups of fins 302 is positioned at the upper surface of substrate 301, and the inside recessed light source cavity 303 that LED1 and circuit board thereof be installed is positioned at the lower surface of substrate 301, and be in groups of fins 302 under.
The present invention is according to the difference of light distribution requirements, and lens can adopt different forms, includes but not limited to convergent type lens, light chopping lens and can produce the lens of rectangular illumination hot spot.Fig. 1 has shown the structure that adopts the LED explosion-proof lamp of convergent type lens, Fig. 5, and 6 have shown the structure of using the LED explosion-proof lamp of light chopping lens.
Like Fig. 1, shown in 2, lens 2 have cavity, and housing surface is the light incidence surface, can be the composite surface of hemisphere face, the face of cylinder or the face of cylinder and free form surface, is used to hold LED1, and the symmetry axis of LED1 light-emitting area overlaps with the symmetry axis of lens cavity.Lens 2 also have the outer rim of protrusion, cooperate with installing hole on the gripper shoe 6, through gripper shoe 6 and cover plate 5 lens 2 are fixed on the radiator 3.According to the form of lens, gripper shoe 6 can be two independently parts with cover plate 5, also can merge into a part.Place the first, two sealing ring 9,10 in gripper shoe 6 and the junction and the gripper shoe 6 of light source cavity 303 respectively with the junction of each lens 2.
Like Fig. 2, shown in 3, electric appliance box 11 is installed on the uper side surface of radiator 3, and places the next door of groups of fins 302, and the heat radiation of LED1 is immune.The cavity of electric appliance box 11 is made up of protecting sheathing 7 and radiator base plate 301 jointly, the drive circuit 8 of LED is installed in the electric appliance box 11, and uses sealing ring and securing member to make drive circuit 8 and external isolation.Electric appliance box 11 adopts the through hole 304 that penetrates radiator base plate to be communicated with the light source cavity that LED is installed 303, and the power line of drive circuit 8 outputs passes the aluminium base circuit board 4 that through hole 304 is connected to LED.Sealing ring or packing matcrial are installed to satisfy requirement of shelter at through hole 304 places.Cable entry 12 is installed on the protecting sheathing 7 of electric appliance box, is used for clamping cables and guarantees the sealing of electric appliance box 11.In electric appliance box 11, contact-making switch is installed, the power supply circuits of outside input can be cut off when protecting sheathing 7 is opened, thereby produce spark when avoiding dismantling light fixture.
Claims (9)
1. LED explosion-proof lamp; Comprise LED (1); Lens (2), radiator (3), aluminium base circuit board (4), cover plate (5), gripper shoe (6), drive circuit (8) and electric appliance box (11) thereof; It is characterized in that: several great power LEDs (1) are installed on the aluminium base circuit board (4), and aluminium base circuit board (4) is installed on the lower surface of radiator (3); Lens (2) are housed on each great power LED (1), and lens (2) are fixedly connected on the radiator (3) through gripper shoe (6) and cover plate (5).
2. LED explosion-proof lamp according to claim 1; It is characterized in that: said radiator (3) is made up of substrate (301), groups of fins (302) and inside recessed light source cavity (303); And be integrative-structure, wherein, inwardly recessed light source cavity (303) is positioned at the lower surface of substrate (301); LED (1) and aluminium base circuit board (4) are installed in the light source cavity (303); Groups of fins (302) is positioned at the upper surface of substrate (301), and is corresponding with the installation region of LED (1), and the heat that LED (1) is produced transfers to external environment condition through fin.
3. LED explosion-proof lamp according to claim 1; It is characterized in that: said lens (2) are provided with the outer rim of cavity and protrusion; Housing surface is the light incidence surface; The composite surface that is the hemisphere face or the face of cylinder or the face of cylinder and free form surface, and be fixed on the downside surface of radiator (3) through gripper shoe (6) and cover plate (5), and the symmetry axis of LED (1) light-emitting area overlaps with the symmetry axis of lens (2) cavity.
4. LED explosion-proof lamp according to claim 1 is characterized in that: said lens (2) also as the transparent protective shield of explosion-proof lamp, are processed by the glass material that tempering is handled.
5. LED explosion-proof lamp according to claim 1; It is characterized in that: said gripper shoe (6) is respectively equipped with first with the junction at radiator (3) downside light source cavity (303) edge and the junction of gripper shoe (6) and each lens (2); Two sealing rings (9; 10), make LED and circuit board thereof and external isolation.
6. LED explosion-proof lamp according to claim 1; It is characterized in that: said electric appliance box (11) is communicated with through the through hole (304) that penetrates radiator base plate (301) with light source cavity (303); The service cable of LED picks out from drive circuit (8); Be connected to aluminium base circuit board (4) after passing through hole (304Z), locate to install sealing ring or packing matcrial at through hole (304).
7. LED explosion-proof lamp according to claim 1 is characterized in that: on the protecting sheathing (7) of said electric appliance box (11) service cable introducing device (12) is housed, is used for the sealing of clamping cables and electric appliance box.
8. LED explosion-proof lamp according to claim 1 is characterized in that: the protecting sheathing (7) of said electric appliance box (11) is provided with seal with the junction of radiator base plate, makes drive circuit (8) and external isolation.
9. LED explosion-proof lamp according to claim 1 is characterized in that: said electric appliance box is equipped with contact-making switch in (11), and when the protecting sheathing (7) of electric appliance box (11) was opened, the power supply circuits of outside input were cut off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100857326A CN102628556A (en) | 2012-03-28 | 2012-03-28 | Light-emitting diode (LED) anti-explosion lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100857326A CN102628556A (en) | 2012-03-28 | 2012-03-28 | Light-emitting diode (LED) anti-explosion lamp |
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| Publication Number | Publication Date |
|---|---|
| CN102628556A true CN102628556A (en) | 2012-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100857326A Pending CN102628556A (en) | 2012-03-28 | 2012-03-28 | Light-emitting diode (LED) anti-explosion lamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822122A (en) * | 2014-02-25 | 2014-05-28 | 苏州红壹佰照明有限公司 | Led energy-saving lamp |
| CN106051535A (en) * | 2016-07-14 | 2016-10-26 | 潍坊歌尔光电有限公司 | LED (Light Emitting Diode) explosion-proof lamp |
Citations (5)
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| CN201251147Y (en) * | 2008-09-11 | 2009-06-03 | 陕西斯达煤矿安全装备有限公司 | LED square laneway lamp |
| CN201318558Y (en) * | 2008-12-03 | 2009-09-30 | 佛山市国星光电股份有限公司 | Portable integrated super-bright LED safety lamp |
| US20100176414A1 (en) * | 2009-01-14 | 2010-07-15 | I-Lung Chuang | Packaging structure of light-emitting components |
| CN201944583U (en) * | 2010-12-09 | 2011-08-24 | 厦门光宇光电科技有限公司 | Novel light-emitting diode (LED) down lamp |
| CN202501276U (en) * | 2012-03-28 | 2012-10-24 | 上海宝临防爆电器有限公司 | LED (Light-Emitting Diode) anti-explosion lamp |
-
2012
- 2012-03-28 CN CN2012100857326A patent/CN102628556A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201251147Y (en) * | 2008-09-11 | 2009-06-03 | 陕西斯达煤矿安全装备有限公司 | LED square laneway lamp |
| CN201318558Y (en) * | 2008-12-03 | 2009-09-30 | 佛山市国星光电股份有限公司 | Portable integrated super-bright LED safety lamp |
| US20100176414A1 (en) * | 2009-01-14 | 2010-07-15 | I-Lung Chuang | Packaging structure of light-emitting components |
| CN201944583U (en) * | 2010-12-09 | 2011-08-24 | 厦门光宇光电科技有限公司 | Novel light-emitting diode (LED) down lamp |
| CN202501276U (en) * | 2012-03-28 | 2012-10-24 | 上海宝临防爆电器有限公司 | LED (Light-Emitting Diode) anti-explosion lamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822122A (en) * | 2014-02-25 | 2014-05-28 | 苏州红壹佰照明有限公司 | Led energy-saving lamp |
| CN106051535A (en) * | 2016-07-14 | 2016-10-26 | 潍坊歌尔光电有限公司 | LED (Light Emitting Diode) explosion-proof lamp |
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Application publication date: 20120808 |