CN202327705U - LED lamp with small surface opening rate - Google Patents

LED lamp with small surface opening rate Download PDF

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Publication number
CN202327705U
CN202327705U CN2011204298613U CN201120429861U CN202327705U CN 202327705 U CN202327705 U CN 202327705U CN 2011204298613 U CN2011204298613 U CN 2011204298613U CN 201120429861 U CN201120429861 U CN 201120429861U CN 202327705 U CN202327705 U CN 202327705U
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CN
China
Prior art keywords
led light
percent opening
light fixture
radiator
little
Prior art date
Application number
CN2011204298613U
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Chinese (zh)
Inventor
吴俊纬
Original Assignee
广州南科集成电子有限公司
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Publication date
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Priority to CN2011204298613U priority Critical patent/CN202327705U/en
Application granted granted Critical
Publication of CN202327705U publication Critical patent/CN202327705U/en

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Abstract

The utility model discloses an LED lamp capable of meeting CCC (China Compulsory Certification) and having high safety and small surface opening rate. The LED lamp includes a heat sink (1), a drive circuit board assembly (3), and an LED light source assembly (6), wherein the LED light source assembly (6) includes a plurality of LED chips and an LED heat sink base plate. The LED lamp with small surface opening rate further includes a ventilation hood (100) which coats the externally exposed part of the heat sink (1), a plurality of ventilation holes (101) are arranged on the ventilation hood (100), and the surface opening rate of the LED lamp is controlled through the opening rate of the ventilation hood (100). The utility model can be applied to the field of LED lamps.

Description

The LED light fixture that a kind of surperficial percent opening is little

Technical field

The utility model relates to a kind of LED light fixture, relates in particular to the little LED light fixture of a kind of surperficial percent opening.

Background technology

LED has advantages such as luminous efficiency height, power saving and life-span length, and it is used more and more widely.LED is applied to normal lighting; In order to reach illumination requirement; Generally to power-type LED be concentrated on the light fixture and use; Therefore the heat radiation of LED becomes a key factor that influences LED light fixture user mode and life-span, and especially for high-power LED lamp, heat dissipation problem has become a technical bottleneck that influences its extensive use.At present the LED light fixture generally adopts radiator to dispel the heat, and in order to improve radiating effect, need increase area of dissipation as far as possible, and radiator generally all exposes, and can directly touch the radiator portion of radiator from appearance.In order further to improve radiating effect; Often it is made open structure; Parts such as the fin of radiator expose, and cause its surperficial percent opening, and---area of perforate on the projected area of annular surface part and ratio of the projected area of annular surface---is very high, has to touch from the surface or near the potential potential safety hazard of electric component in the radiator; Therefore the authentication of the UL of the U.S. has restrictive requirement to the surperficial percent opening of LED light fixture; The present structure that exposes is difficult to satisfy above-mentioned requirement to surperficial percent opening, and surperficial percent opening height causes its waterproof and dustproof effect relatively poor, has limited it and has reached the application under the particular surroundings out of doors.

The utility model content

The utility model technical problem to be solved is the deficiency that overcomes prior art, provides a kind of and can satisfy safety authentication, the safe little LED light fixture of surperficial percent opening.

The technical scheme that the utility model adopted is: the utility model comprises radiator, drive circuit board component, led light source assembly; Said led light source assembly comprises several led chips and LED heat-radiating substrate; The LED light fixture that said surperficial percent opening is little also comprises ventilator cowling; Said ventilator cowling is with the exposed parts ladle cover of said radiator, and said ventilator cowling is provided with several air vents, controls the surperficial percent opening of said LED light fixture through the percent opening of said ventilator cowling.

The LED light fixture that said surperficial percent opening is little also comprises radiator fan, wind scooper, power pack loam cake, power pack lower cover, top cover; Said radiator comprises base plate; The bottom surface of said base plate is the plane; The end face of said base plate is provided with radiating part, and the central area of said radiating part is provided with the space region that is used for ccontaining said radiator fan, and said LED heat-radiating substrate conducts heat to said radiator heat-dissipation; Said power pack lower cover is positioned at said radiator fan top and is fixedly connected with said radiator; Said power pack loam cake be tightly connected mutually with said power pack lower cover and with said drive circuit board component ladle cover in interior, in cavity, the upper portion side wall of said wind scooper is provided with several gas ports to said wind scooper with the top ladle cover of said radiator fan, said power pack loam cake, said power pack lower cover and said radiator; Said top cover and said wind scooper be fixedly connected and in the side with said gas port ladle cover, said gas port communicates with the external world through the opening of the bottom periphery of said top cover.

The top of said ventilator cowling is provided with annular connecting portion; Several said air vents are positioned on the sidewall of said ventilator cowling; Said wind scooper is stepped; Said gas port is positioned at the top of ladder, and said ventilator cowling ladle cover is in the lower, outer perimeter of the ladder of said wind scooper, and said ventilator cowling is fixed in the ladder position of said wind scooper through said annular connecting portion.

Perhaps, the one-body molded integral body that becomes of said ventilator cowling and said wind scooper.

Be provided with the synthetic mica sheet between said LED heat-radiating substrate and the said base plate, the outer rim of said synthetic mica sheet exceeds the edge 1~10mm of said LED heat-radiating substrate.

The LED light fixture that said surperficial percent opening is little also comprises the connection fixation kit; Said connection fixation kit comprises upper connector, following connector, intermediate connector; Said upper connector is connected with indoor roofing element; Said connector down and said top cover are fixedly connected, and said intermediate connector is connected with said upper connector, said connector down respectively through screw thread.

Said radiator fan is the dustproof and waterproof fan; Connect seam crossing between said power pack loam cake and the said power pack lower cover and scribble waterproof gasket cement; Said radiating part in the form of sheets or the pin column.

The LED light fixture that said surperficial percent opening is little also comprises light permeable protection, lampshade, and the bottom of said light permeable protection, said lampshade and said radiator is fixedly connected and with said led light source assembly ladle cover.

The bottom outer rim of said light permeable protection covers the bottom margin of said lampshade; And through bolt said light permeable protection, said lampshade are connected with said radiator, the bottom outer rim of said light permeable protection and the seam crossing of said radiator scribble waterproof gasket cement.

The LED light fixture that said surperficial percent opening is little also comprises reflecting component, and said reflecting component is positioned at luminous the place ahead of said led light source assembly, and said reflecting component comprises the reflective surface that several are corresponding with said led chip.

The beneficial effect of the utility model is: because the utility model comprises ventilator cowling; Said ventilator cowling is with the exposed parts ladle cover of said radiator, and said ventilator cowling is provided with several air vents, controls the surperficial percent opening of said LED light fixture through the percent opening of said ventilator cowling; The utility model is on the basis that does not influence original radiator heat-dissipation performance; Through the exposed parts ladle cover of said ventilator cowling, and control the surperficial percent opening of said LED light fixture, both satisfied the needs of heat radiation through the percent opening of said ventilator cowling with said radiator; Again can the control surface percent opening, so the utility model can satisfy the safety authentication, safe, surperficial percent opening is little;

Because be provided with the synthetic mica sheet between said LED heat-radiating substrate of the utility model and the said base plate, the outer rim of said synthetic mica sheet exceeds the edge 1~10mm of said LED heat-radiating substrate, the synthetic mica sheet is to adopt the MICA raw material to cause mica paper; Be equipped with adhesive then through the slab insulant that HTHP compacting forms, have excellent thermal conductivity, anti-flammability and electrical insulating property, advantage such as have that thickness is even, the adjusting arbitrarily of the big I of area, pliability and processability are good; Its thermal conductivity factor is 5W/ (mK)~24W/ (mK); Higher than the thermal conductivity factor of heat-conducting silicone grease and heat conductive insulating cloth, and mica sheet is the state of fixed in shape, and its average uniformity is high; Therefore more closely knit evenly with contacting of said LED heat-radiating substrate and said base plate; Therefore heat conduction and insulating properties are better, and simple installation, and efficient is high; Edge 1~the 10mm that exceeds said LED heat-radiating substrate through the edge of said synthetic mica sheet; Make and to satisfy of the requirement of relevant safety between said LED heat-radiating substrate and the said radiator, improve security so the utility model can satisfy safety authentication, safe for creep age distance.

Description of drawings

Fig. 1 is the perspective view of the utility model embodiment;

Fig. 2 is the blast structural representation of the utility model embodiment;

Fig. 3 is the section structure sketch map of the utility model embodiment;

Fig. 4 is the perspective view of the ventilator cowling of the utility model embodiment.

The specific embodiment

Like Fig. 1~shown in Figure 4, the LED light fixture that the surperficial percent opening of present embodiment is little is a kind of bulkhead lamp capable, comprises radiator 1, radiator fan 2, drive circuit board component 3, power pack loam cake 31, power pack lower cover 32, wind scooper 4, top cover 5, led light source assembly 6, ventilator cowling 100, connects fixation kit, light permeable protection 7, reflecting component 8, lampshade 9; Said led light source assembly 6 comprises several led chips and LED heat-radiating substrate; Said radiator 1 comprises base plate 11, and the bottom surface of said base plate 11 is the plane, and the end face of said base plate 11 is provided with radiating part 12; Be positioned at peripheral said radiating part 12 in the form of sheets; Form the air channel along said base plate 11 arranged radiallys, the said radiating part 12 that is positioned at the center is the pin column and forms crisscross air communication channel, so good heat dissipation effect; The central area of said radiating part 12 is provided with the space region that is used for ccontaining said radiator fan 2; Said LED heat-radiating substrate conducts heat to said radiator 1 heat radiation, and said radiator fan 2 is dustproof and waterproof fans, is provided with synthetic mica sheet 10 between said LED heat-radiating substrate and the said base plate 11; The outer rim of said synthetic mica sheet 10 exceeds the edge 1~10mm of said LED heat-radiating substrate; To satisfy the requirement of safety for creep age distance, said ventilator cowling 100 is with the exposed parts ladle cover of said radiator 1, and said ventilator cowling 100 is provided with several air vents 101; The top of said ventilator cowling 100 is provided with annular connecting portion 102; Several said air vents 101 are positioned on the sidewall of said ventilator cowling 100, control the surperficial percent opening of said LED light fixture through the percent opening of said ventilator cowling 100, to satisfy the requirement of safety for surperficial percent opening; In the present embodiment; On middle part 1/3rd place's ring surfaces of the sidewall of said ventilator cowling 100, offer the said air vent 101 of its area 40%, therefore said ventilator cowling 100 total percent openings are 0.333 * 0.4 ≈ 13.3%<15%, have satisfied the requirement of UL authentication; Said reflecting component 8 is positioned at luminous the place ahead of said led light source assembly 6, and said reflecting component 8 comprises the reflective surface that several are corresponding with said led chip; Said power pack lower cover 32 is positioned at said radiator fan 2 tops and is fixedly connected with said radiator 1; Said power pack loam cake 31 be tightly connected mutually with said power pack lower cover 32 and with said drive circuit board component 3 ladle covers in interior; Connect seam crossing between said power pack loam cake 31 and the said power pack lower cover 32 and scribble waterproof gasket cement; Make said drive circuit board component 3 sealed with said power pack lower cover 32 by said power pack loam cake 31; Reach the effect of water proof dust-separation, be connected through screw respectively between said power pack loam cake 31 and the said power pack lower cover 32 and between said top cover 5 and the said wind scooper 4, said wind scooper 4 with the top ladle cover of said radiator fan 3, said power pack loam cake 31, said power pack lower cover 32 and said radiator 1 in cavity; The upper portion side wall of said wind scooper 4 is provided with several gas ports 41; Said top cover 5 be fixedly connected with said wind scooper 4 and in the side with said gas port 41 ladle covers, said gas port 41 communicates with the external world through the opening of the bottom periphery of said top cover 5, helps flow air is carried out water conservancy diversion; Increased the path of flowing; Heat dispersion is better, and said wind scooper 4 is stepped, and said gas port 41 is positioned at the top of ladder; Said ventilator cowling 100 ladle covers are in the lower, outer perimeter of the ladder of said wind scooper 4, and said ventilator cowling 100 is fixed in the ladder position of said wind scooper 4 through said annular connecting portion 102; Said connection fixation kit comprises upper connector 51, following connector 52, intermediate connector 53; Said upper connector 51 is connected with indoor roofing element; Said down connector 52 is fixedly connected with said top cover 5, and said intermediate connector 53 is connected with said upper connector 51, said connector 52 down respectively through screw thread; The bottom of said light permeable protection 7, said lampshade 9 and said radiator 1 is fixedly connected and with said led light source assembly 6 ladle covers; The bottom outer rim of said light permeable protection 7 covers the bottom margin of said lampshade 9; And said light permeable protection 7, said lampshade 9 are connected with said radiator 1 through bolt; The bottom outer rim of said light permeable protection 7 and the seam crossing of said radiator 1 scribble waterproof gasket cement, to protect the waterproof and dustproof of the said led light source assembly 6 in the said light permeable protection 7.

In the present embodiment; Said ventilator cowling 100 links together with the member of said wind scooper 4 as two difference in functionalitys; Certainly; Said ventilator cowling 100 also can with the said wind scooper 4 one-body molded integral body that become, have and reduce surperficial percent opening and the two kinds of functions of flow path and the technique effect that increase heat dissipation wind channel.

In the present embodiment, the power unit water proof and dust proof of whole light fixture sealing is isolated, prevents that winged insect etc. from getting into power unit, can be used for the places such as workshop, factory building of outdoor and many dirt, is suitable for outdoor use, effectively waterproof and dustproof; Through said radiator fan 2 is combined with said radiator 1; Make light fixture have the effect that active heat removal and passive heat radiation combine; Its radiating effect is excellent; Can effectively improve the stability and the service life of light fixture, so the utility model dispels the heat, the dustproof and waterproof effect is good, the bulkhead lamp capable that can be used as indoor or outdoors uses.

In the present embodiment, under the effect of said radiator fan 2, outside air gets in the cavity of said wind scooper 4 through said gas port 41; And between said radiating part 12, flow, flow out to the outside air from the space, bottom of said radiator 1, the said air vent 101 of said ventilator cowling 100 successively, mobile through the forced circulation of said radiator fan 2; Take away the heat on the said radiator 1; Radiating effect is excellent, can avoid led chip at high temperature to work, and effectively increases the service life; Because the existence of forced heat radiation, therefore comparable common light fixture reduces the volume and weight of said radiator 1, has increased the adaptability of light fixture.

The utility model can be widely used in the LED lighting field.

Claims (10)

1. LED light fixture that surperficial percent opening is little; Comprise radiator (1), drive circuit board component (3), led light source assembly (6); Said led light source assembly (6) comprises several led chips and LED heat-radiating substrate; It is characterized in that: the LED light fixture that said surperficial percent opening is little also comprises ventilator cowling (100); Said ventilator cowling (100) is with the exposed parts ladle cover of said radiator (1), and said ventilator cowling (100) is provided with several air vents (101), controls the surperficial percent opening of said LED light fixture through the percent opening of said ventilator cowling (100).
2. the LED light fixture that surperficial percent opening according to claim 1 is little; It is characterized in that: the LED light fixture that said surperficial percent opening is little also comprises radiator fan (2), wind scooper (4), power pack loam cake (31), power pack lower cover (32), top cover (5); Said radiator (1) comprises base plate (11); The bottom surface of said base plate (11) is the plane; The end face of said base plate (11) is provided with radiating part (12); The central area of said radiating part (12) is provided with the space region that is used for ccontaining said radiator fan (2); Said LED heat-radiating substrate conducts heat to said radiator (1) heat radiation, and said power pack lower cover (32) is positioned at said radiator fan (2) top and is fixedly connected with said radiator (1), said power pack loam cake (31) be tightly connected mutually with said power pack lower cover (32) and with said drive circuit board component (3) ladle cover in interior; Said wind scooper (4) with the top ladle cover of said radiator fan (3), said power pack loam cake (31), said power pack lower cover (32) and said radiator (1) in cavity; The upper portion side wall of said wind scooper (4) is provided with several gas ports (41), said top cover (5) and said wind scooper (4) be fixedly connected and in the side with said gas port (41) ladle cover, said gas port (41) communicates with the external world through the opening of the bottom periphery of said top cover (5).
3. the LED light fixture that surperficial percent opening according to claim 2 is little; It is characterized in that: the top of said ventilator cowling (100) is provided with annular connecting portion (102); Several said air vents (101) are positioned on the sidewall of said ventilator cowling (100); Said wind scooper (4) is stepped; Said gas port (41) is positioned at the top of ladder, and said ventilator cowling (100) ladle cover is in the lower, outer perimeter of the ladder of said wind scooper (4), and said ventilator cowling (100) is fixed in the ladder position of said wind scooper (4) through said annular connecting portion (102).
4. the LED light fixture that surperficial percent opening according to claim 2 is little is characterized in that: said ventilator cowling (100) and the one-body molded integral body that becomes of said wind scooper (4).
5. the LED light fixture that surperficial percent opening according to claim 2 is little; It is characterized in that: be provided with synthetic mica sheet (10) between said LED heat-radiating substrate and the said base plate (11), the outer rim of said synthetic mica sheet (10) exceeds the edge 1~10mm of said LED heat-radiating substrate.
6. the LED light fixture that surperficial percent opening according to claim 2 is little; It is characterized in that: the LED light fixture that said surperficial percent opening is little also comprises the connection fixation kit; Said connection fixation kit comprises upper connector (51), following connector (52), intermediate connector (53); Said upper connector (51) is connected with indoor roofing element; Said connector (52) down is fixedly connected with said top cover (5), and said intermediate connector (53) is connected with said upper connector (51), said connector (52) down respectively through screw thread.
7. the LED light fixture that surperficial percent opening according to claim 2 is little is characterized in that: said radiator fan (2) is the dustproof and waterproof fan; Connect seam crossing between said power pack loam cake (31) and the said power pack lower cover (32) and scribble waterproof gasket cement; Said radiating part (12) in the form of sheets or the pin column.
8. the LED light fixture that surperficial percent opening according to claim 1 is little; It is characterized in that: the LED light fixture that said surperficial percent opening is little also comprises light permeable protection (7), lampshade (9), and the bottom of said light permeable protection (7), said lampshade (9) and said radiator (1) is fixedly connected and with said led light source assembly (6) ladle cover.
9. the LED light fixture that surperficial percent opening according to claim 8 is little; It is characterized in that: the bottom outer rim of said light permeable protection (7) covers the bottom margin of said lampshade (9); And through bolt said light permeable protection (7), said lampshade (9) are connected with said radiator (1), the seam crossing of the bottom outer rim of said light permeable protection (7) and said radiator (1) scribbles waterproof gasket cement.
10. the LED light fixture that surperficial percent opening according to claim 1 is little; It is characterized in that: the LED light fixture that said surperficial percent opening is little also comprises reflecting component (8); Said reflecting component (8) is positioned at luminous the place ahead of said led light source assembly (6), and said reflecting component (8) comprises the reflective surface that several are corresponding with said led chip.
CN2011204298613U 2011-11-03 2011-11-03 LED lamp with small surface opening rate CN202327705U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204298613U CN202327705U (en) 2011-11-03 2011-11-03 LED lamp with small surface opening rate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204298613U CN202327705U (en) 2011-11-03 2011-11-03 LED lamp with small surface opening rate

Publications (1)

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CN202327705U true CN202327705U (en) 2012-07-11

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102392945A (en) * 2011-11-03 2012-03-28 广州南科集成电子有限公司 LED lamp with small surface opening rate
CN103148384A (en) * 2013-02-19 2013-06-12 深圳市洲明科技股份有限公司 LED bulb
CN103994350A (en) * 2014-05-09 2014-08-20 东莞嘉盛照明科技有限公司 Light emitting diode lamp
CN104100868A (en) * 2014-07-23 2014-10-15 深圳市超频三科技有限公司 LED lamp
CN104763894A (en) * 2015-03-27 2015-07-08 上海典欧实业有限公司 LED mining lamp with self-absorbing high-convection radiator
WO2016119091A1 (en) * 2015-01-30 2016-08-04 宁波华电节能科技有限公司 Outdoor laser light

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102392945A (en) * 2011-11-03 2012-03-28 广州南科集成电子有限公司 LED lamp with small surface opening rate
CN102392945B (en) 2011-11-03 2014-05-07 广州南科集成电子有限公司 LED lamp with small surface opening rate
CN103148384A (en) * 2013-02-19 2013-06-12 深圳市洲明科技股份有限公司 LED bulb
CN103148384B (en) * 2013-02-19 2015-07-15 深圳市洲明科技股份有限公司 LED bulb
CN103994350A (en) * 2014-05-09 2014-08-20 东莞嘉盛照明科技有限公司 Light emitting diode lamp
CN103994350B (en) * 2014-05-09 2015-11-25 东莞嘉盛照明科技有限公司 LED lamp
CN104100868A (en) * 2014-07-23 2014-10-15 深圳市超频三科技有限公司 LED lamp
WO2016119091A1 (en) * 2015-01-30 2016-08-04 宁波华电节能科技有限公司 Outdoor laser light
CN104763894A (en) * 2015-03-27 2015-07-08 上海典欧实业有限公司 LED mining lamp with self-absorbing high-convection radiator

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120711

Termination date: 20171103