CN110566830A - Lamp meeting safe creepage distance - Google Patents
Lamp meeting safe creepage distance Download PDFInfo
- Publication number
- CN110566830A CN110566830A CN201910971768.6A CN201910971768A CN110566830A CN 110566830 A CN110566830 A CN 110566830A CN 201910971768 A CN201910971768 A CN 201910971768A CN 110566830 A CN110566830 A CN 110566830A
- Authority
- CN
- China
- Prior art keywords
- lamp body
- groove
- optical
- body radiator
- light source
- 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.)
- Pending
Links
- 239000000758 substrate Substances 0.000 claims abstract description 40
- 238000003801 milling Methods 0.000 claims abstract description 19
- 239000011810 insulating material Substances 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 claims description 53
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 210000000078 claw Anatomy 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 241001465382 Physalis alkekengi Species 0.000 claims 1
- 239000004020 conductor Substances 0.000 abstract description 7
- 239000000919 ceramic Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
- F21V23/002—Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V25/00—Safety devices structurally associated with lighting devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The invention relates to a lamp meeting the safe creepage distance, which comprises a lamp body radiator and a COB light source substrate; the COB light source substrate is arranged on the lamp body radiator; the bottom of the lamp body radiator comprises a groove milling area and a non-groove milling area; the groove milling area is arranged in the center of the lamp body radiator; the non-groove-milling area is a light-emitting surface of the COB light source substrate; length a of the milled groove area1Is 26mm, and is milled with a grooveWidth b of the region130mm, depth h of the milled groove area1Is 3 mm; diameter D of non-milled groove area1Is 18 mm; and heat-conducting insulating materials are filled or placed in the milling groove area. The invention solves the safety requirement of the safe creepage distance between the electrified conductor and the touchable conductor of the I-type lamp.
Description
Technical Field
The invention relates to the technical field of structures of safe creepage intervals of electrified parts of lamps, in particular to a lamp meeting the safe creepage intervals.
Background
Lamps are classified into class 0 lamps, class i lamps, class ii lamps and class iii lamps according to the national mandatory lamp safety standard (GB 7000.1-2015). Of these, type i lamps refer to lamps whose protection against electric shock is not only dependent on basic insulation, but also includes additional safety measures, namely the connection of accessible conductive parts to the protective (earth) conductor in the fixture wiring, so that the accessible conductive parts do not become live in case of a basic insulation failure.
At present, the design method of the I-type lamp is to customize the size of an enlarged LED light source substrate, can increase the insulation distance and meet the requirement of electrical safety distance.
FIG. 1 is a schematic diagram of a conventional (standard) COB-LED light source substrate. The COB-LED light source substrate includes an electrode pad 10, a light emitting chip 11, a dam dotting layer 12, and a ceramic substrate 14. The light emitting chip 11 is fixed on the light emitting surface area of the ceramic substrate 14, the dam point adhesive layer 12 is fixed around the light emitting chip 11, and the electrode pad 10 is fixed on the light emitting surface area of the ceramic substrate 14. The electrode pad 10 includes a positive electrode lead 13 and a negative electrode lead 15. The edge distance l between the positive electrode lead 13 or the negative electrode lead 15 and the ceramic substrate 141Only 1 mm. Length a of ceramic substrate 14220mm, width b of the ceramic substrate 14224mm, thickness h of the ceramic substrate 142Is 1 mm. Diameter D of light emitting surface region of ceramic substrate 142Is 17 mm. The creepage distance from the charged electrode to the conductive lamp body radiator is l1+h2＝1mm+1mm＝2mm。
Fig. 2 is a cross-sectional view of a conventional class i LED lamp structure. As shown in fig. 2, the conventional class i LED lamp includes a lamp body heat sink 1, a COB light source substrate 3, and an optical reflector 5. Heat-conducting silicone grease 16 is coated on the base surface of the lamp body radiator 1, the COB light source substrate 3 is directly placed on the base surface, heat treatment is carried out until the silicon chip is firmly fixed on the base, and the COB light source substrate 3 is additionally provided with the optical reflector 5.
FIG. 6 shows the minimum creepage distance of the AC (50/60Hz) sinusoidal voltage of a common lamp specified in the safety Standard for lamps imposed by the State standards for Lamp safety (GB 7000.1-2015). As shown in fig. 6, the minimum creepage distance requirement is greater than 2.5mm at an input voltage of 250V.
Therefore, the structural design of the existing class i LED lamp cannot meet the minimum creepage safety requirement specified in the national mandatory lamp safety standard (GB 7000.1-2015).
Disclosure of Invention
Aiming at the defects of the prior art, the invention discloses a lamp meeting the safe creepage distance.
The technical scheme adopted by the invention is as follows:
A lamp meeting the safe creepage distance comprises a lamp body radiator and a COB light source substrate; the COB light source substrate is arranged on the lamp body radiator; the bottom of the lamp body radiator comprises a groove milling area and a non-groove milling area; the groove milling area is arranged in the center of the lamp body radiator; the non-groove-milling area is a light-emitting surface of the COB light source substrate; length a of the milling groove area126mm, the width b of the milled groove area130mm, depth h of the milled groove area1Is 3 mm; diameter D of the non-grooved region1Is 18 mm; and heat-conducting insulating materials are filled or placed in the milling groove area.
The method is further characterized in that: the heat-conducting insulating material is insulating glue or a gasket.
The method is further characterized in that: the lamp meeting the safe creepage distance further comprises an optical assembly pressure ring, an optical reflector, an optical lens and an electrode lead; the electrode lead is packaged on the COB light source substrate; the COB light source substrate is clamped between the optical lens and the lamp body radiator; the optical lens is fixed on the optical reflector; the optical reflector is arranged in the lamp body radiator; the optical component pressure ring and the optical reflector, the optical component pressure ring and the lamp body radiator are all in spiral connection; the optical reflecting shade is fixed in the lamp body radiator.
The method is further characterized in that: a radially outwardly extending claw of the optical lens; the COB light source substrate is provided with a group of symmetrical U-shaped notches; the clamping jaw is inserted in the U-shaped notch.
The method is further characterized in that: the inner wall of the optical component compression ring is provided with a first thread ring; the outer wall of the optical reflector is provided with a second threaded ring; the first thread turn and the second thread turn are spirally connected.
The method is further characterized in that: a third thread ring is arranged on the outer wall of the optical assembly compression ring; the inner wall of the optical component compression ring is also provided with a plurality of grooves; the inner wall of the lamp body radiator is provided with a fourth thread ring; the inner wall of the lamp body radiator is provided with a convex part; the third thread turn and the fourth thread turn are in threaded connection; the groove is embedded with the inner wall.
The invention has the following beneficial effects:
1. the creepage distance between the electrode charged part and the lamp body radiator after groove milling is more than 4mm, and the safety requirement of the safe creepage distance between the charged conductor and the touchable conductor of the I-type lamp is met.
2. The invention has the advantages of no need of customization, low cost, quick delivery, safety and good product consistency.
Drawings
FIG. 1 is a schematic diagram of a conventional (standard) COB-LED light source substrate.
Fig. 2 is a cross-sectional view of a conventional class i LED lamp structure.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 is a schematic size view of a milled groove area and a non-milled groove area.
Fig. 5 is an exploded view of the present invention.
FIG. 6 shows the minimum creepage distance of the AC (50/60Hz) sinusoidal voltage of a common lamp specified in the safety Standard for lamps imposed by the State standards for Lamp safety (GB 7000.1-2015).
In the figure: 1. a lamp body heat sink; 2. a thermally conductive insulating material; 3. a COB light source substrate; 4. an optical assembly compression ring; 5. an optical reflector; 6. an optical lens; 7. an electrode lead; 8. a claw; 9. a U-shaped notch; 10. an electrode pad; 11. a light emitting chip; 12. a dam point glue layer; 13. a positive electrode lead; 14. a ceramic substrate; 15. a negative electrode lead; 16. and (3) heat-conducting silicone grease.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings. Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Therefore, the directional terminology used is for the purpose of describing, but not limiting, the invention, and moreover, like reference numerals designate like elements throughout the embodiments.
The following describes a specific embodiment of the present embodiment with reference to the drawings.
Fig. 3 is a cross-sectional view of the present invention, and fig. 4 is a schematic size view of a milled area and a non-milled area. With reference to fig. 3 and 4, a lamp satisfying a safe creepage distance is characterized in that: including lamp body radiator 1 and COB light source substrate 3. The COB light source substrate 3 is mounted on the lamp body heat sink 1. The bottom of the lamp body heat sink 1 includes a milled groove region and a non-milled groove region. The milled groove area is in the center of the lamp body heat sink 1. The non-groove-milled area is the light-emitting surface of the COB light source substrate 3. That is, grooves are milled in the front bottom portion of the COB light source substrate 3, and no grooves are milled in the front bottom portion except for the light emitting surface of the COB light source substrate 3. Length a of the milled groove area126mm, width b of the milled groove area130mm, depth h of the milled groove area1Is 3 mm. Diameter D of non-milled groove area1Is 18 mm. And the heat-conducting insulating material 2 is filled or placed in the milled groove area. The heat-conducting insulating material 2 is insulating glue or a gasket.
Fig. 5 is an exploded view of the present invention. As shown in fig. 5, the lamp satisfying the safe creepage distance further includes an optical assembly press ring 4, an optical reflector 5, an optical lens 6, and an electrode wire 7. The electrode leads 7 are packaged on the COB light source substrate 3. The COB light source substrate 3 is interposed between the optical lens 6 and the lamp body heat sink 1. In particular, the claws 8 of the optical lens 6 extend radially outward. The COB light source substrate 3 is provided with a group of symmetrical U-shaped notches 9. The clamping jaw 8 is inserted in the U-shaped notch 9. The optical lens 6 is fixed on the optical reflector 5. The optical reflector 5 is placed inside the lamp body heat sink 1. The optical component pressing ring 4 and the optical reflecting cover 5, the optical component pressing ring 4 and the lamp body radiator 1 are all in spiral connection. Specifically, the inner wall of the optical component pressure ring 4 is provided with a first thread ring. And the outer wall of the optical reflector 5 is provided with a second thread circle. The first thread ring and the second thread ring are spirally connected. And a third thread ring is arranged on the outer wall of the optical component compression ring 4. The inner wall of the optical component pressure ring 4 is also provided with a plurality of grooves. The inner wall of the lamp body radiator 1 is provided with a fourth thread circle. The inner wall of the lamp body heat sink 1 is provided with a protrusion. The third thread ring and the fourth thread ring are spirally connected. The groove is embedded with the inner wall. The optical reflector 5 is fixed in the lamp body heat sink 1.
FIG. 6 shows the minimum creepage distance of the AC (50/60Hz) sinusoidal voltage of a common lamp specified in the safety Standard for lamps imposed by the State standards for Lamp safety (GB 7000.1-2015). The creepage distance between the electrode charged part and the lamp body radiator 1 after groove milling is more than 4mm, and the safety requirement of the safe creepage distance between the charged conductor and the touchable conductor of the I-type lamp is met.
The foregoing description is illustrative of the present invention and is not to be construed as limiting thereof, the scope of the invention being defined by the appended claims, which may be modified in any manner without departing from the basic structure thereof.
Claims (6)
1. The utility model provides a satisfy lamps and lanterns of safe creepage interval which characterized in that: the LED lamp comprises a lamp body radiator (1) and a COB light source substrate (3); the COB light source substrate (3) is arranged on the lamp body radiator (1); the bottom of the lamp body radiator (1) comprises a groove milling area and a non-groove milling area; the groove milling area is arranged at the central position of the lamp body radiator (1); the non-groove-milling area is a light-emitting surface of the COB light source substrate (3); length a of the milling groove area126mm, the width b of the milled groove area130mm, depth h of the milled groove area1Is 3 mm; the non-millingDiameter D of the groove region1Is 18 mm; and the heat-conducting insulating material (2) is filled or placed in the milling groove area.
2. A light fixture that satisfies a safe creepage distance according to claim 1, wherein: the heat-conducting insulating material (2) is insulating glue or a gasket.
3. a light fixture that satisfies a safe creepage distance according to claim 1, wherein: the lamp meeting the safe creepage distance further comprises an optical assembly pressure ring (4), an optical reflector (5), an optical lens (6) and an electrode lead (7); the electrode lead (7) is packaged on the COB light source substrate (3); the COB light source substrate (3) is clamped between the optical lens (6) and the lamp body heat sink (1); the optical lens (6) is fixed on the optical reflector (5); the optical reflector (5) is arranged in the lamp body radiator (1); the optical component pressing ring (4) is in spiral connection with the optical reflecting cover (5), and the optical component pressing ring (4) is in spiral connection with the lamp body radiator (1); the optical reflecting shade (5) is fixed in the lamp body radiator (1).
4. A light fixture that satisfies a safe creepage distance according to claim 3, wherein: a radially outwardly extending claw (8) of the optical lens (6); the COB light source substrate (3) is provided with a group of symmetrical U-shaped notches (9); the clamping jaw (8) is inserted into the U-shaped notch (9).
5. A light fixture that satisfies a safe creepage distance according to claim 3, wherein: the inner wall of the optical component compression ring (4) is provided with a first threaded ring; the outer wall of the optical reflector (5) is provided with a second threaded ring; the first thread turn and the second thread turn are spirally connected.
6. A light fixture that satisfies a safe creepage distance according to claim 3, wherein: a third thread ring is arranged on the outer wall of the optical component compression ring (4); the inner wall of the optical component compression ring (4) is also provided with a plurality of grooves; a fourth thread ring on the inner wall of the lamp body radiator (1); the inner wall of the lamp body radiator (1) is provided with a convex part; the third thread turn and the fourth thread turn are in threaded connection; the groove is embedded with the inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910971768.6A CN110566830A (en) | 2019-10-14 | 2019-10-14 | Lamp meeting safe creepage distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910971768.6A CN110566830A (en) | 2019-10-14 | 2019-10-14 | Lamp meeting safe creepage distance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110566830A true CN110566830A (en) | 2019-12-13 |
Family
ID=68784862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910971768.6A Pending CN110566830A (en) | 2019-10-14 | 2019-10-14 | Lamp meeting safe creepage distance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110566830A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201992578U (en) * | 2011-02-16 | 2011-09-28 | 厦门立明光电有限公司 | Point-center riveting and combining structure of illuminant substrate group and heat conducting installation plate |
| CN102927456A (en) * | 2011-08-09 | 2013-02-13 | 欧司朗股份有限公司 | LED luminous component and LED remodeled lamp with same |
| CN203322812U (en) * | 2013-06-26 | 2013-12-04 | 河北博信伟德电源技术有限公司 | Integrated LED (light emitting diode) daylight lamp without dark space |
| CN203533271U (en) * | 2013-10-18 | 2014-04-09 | 佛山市南海区华恒照明电器厂 | COB encapsulation light source |
| CN103867934A (en) * | 2012-12-17 | 2014-06-18 | 欧普照明股份有限公司 | LED bulb |
| CN204459935U (en) * | 2015-02-02 | 2015-07-08 | 深圳福凯半导体照明有限公司 | Novel flood lamp tool |
| TW201544761A (en) * | 2014-05-26 | 2015-12-01 | Chieh Ouyang | An LED lighting element and lighting fixtures |
| CN105179973A (en) * | 2015-10-12 | 2015-12-23 | 无锡优为照明科技有限公司 | LED lamp with high-safety operational light source support |
| CN107830453A (en) * | 2017-11-28 | 2018-03-23 | 深圳市必拓电子股份有限公司 | A kind of high pressure resistant shot-light |
| DE202018107462U1 (en) * | 2018-10-12 | 2019-03-17 | Ch Lighting Technology Co., Ltd. | Lamp head of a fluorescent tube and LED tube |
| CN210567589U (en) * | 2019-10-14 | 2020-05-19 | 江苏优为视界科技有限公司 | Lamp meeting safe creepage distance |
-
2019
- 2019-10-14 CN CN201910971768.6A patent/CN110566830A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201992578U (en) * | 2011-02-16 | 2011-09-28 | 厦门立明光电有限公司 | Point-center riveting and combining structure of illuminant substrate group and heat conducting installation plate |
| CN102927456A (en) * | 2011-08-09 | 2013-02-13 | 欧司朗股份有限公司 | LED luminous component and LED remodeled lamp with same |
| CN103867934A (en) * | 2012-12-17 | 2014-06-18 | 欧普照明股份有限公司 | LED bulb |
| CN203322812U (en) * | 2013-06-26 | 2013-12-04 | 河北博信伟德电源技术有限公司 | Integrated LED (light emitting diode) daylight lamp without dark space |
| CN203533271U (en) * | 2013-10-18 | 2014-04-09 | 佛山市南海区华恒照明电器厂 | COB encapsulation light source |
| TW201544761A (en) * | 2014-05-26 | 2015-12-01 | Chieh Ouyang | An LED lighting element and lighting fixtures |
| CN204459935U (en) * | 2015-02-02 | 2015-07-08 | 深圳福凯半导体照明有限公司 | Novel flood lamp tool |
| CN105179973A (en) * | 2015-10-12 | 2015-12-23 | 无锡优为照明科技有限公司 | LED lamp with high-safety operational light source support |
| CN107830453A (en) * | 2017-11-28 | 2018-03-23 | 深圳市必拓电子股份有限公司 | A kind of high pressure resistant shot-light |
| DE202018107462U1 (en) * | 2018-10-12 | 2019-03-17 | Ch Lighting Technology Co., Ltd. | Lamp head of a fluorescent tube and LED tube |
| CN210567589U (en) * | 2019-10-14 | 2020-05-19 | 江苏优为视界科技有限公司 | Lamp meeting safe creepage distance |
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