CN104033796A - High-radiating-performance LED streetlamp - Google Patents

High-radiating-performance LED streetlamp Download PDF

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Publication number
CN104033796A
CN104033796A CN201410280020.9A CN201410280020A CN104033796A CN 104033796 A CN104033796 A CN 104033796A CN 201410280020 A CN201410280020 A CN 201410280020A CN 104033796 A CN104033796 A CN 104033796A
Authority
CN
China
Prior art keywords
cavernous body
radiating surface
auxiliary radiating
radiating
lamp housing
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.)
Granted
Application number
CN201410280020.9A
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Chinese (zh)
Other versions
CN104033796B (en
Inventor
朱虹斐
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.)
SHENZHEN MEISITE PHOTOELECTRIC TECHNOLOGY CO., LTD.
Original Assignee
朱虹斐
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to CN201610557250.4A priority Critical patent/CN106195824A/en
Priority to CN201610557368.7A priority patent/CN106195825A/en
Priority to CN201610556493.6A priority patent/CN106195822A/en
Priority to CN201610555813.6A priority patent/CN106195821A/en
Priority to CN201610557249.1A priority patent/CN106122853A/en
Application filed by 朱虹斐 filed Critical 朱虹斐
Priority to CN201410280020.9A priority patent/CN104033796B/en
Priority to CN201610560073.5A priority patent/CN106195826A/en
Publication of CN104033796A publication Critical patent/CN104033796A/en
Application granted granted Critical
Publication of CN104033796B publication Critical patent/CN104033796B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • 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
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/56—Cooling arrangements using liquid coolants
    • 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
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • 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
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The invention provides a high-radiating-performance LED streetlamp comprising a lamp shell and a streetlamp post connecting body which are fixed with each other. The lamp shell comprises more than one main radiating face and more than one auxiliary radiating face, the main radiating faces and the auxiliary radiating faces are all connected to a radiating substrate arranged inside the lamp shell and closely fitted with an LED wafer panel in a thermally-conductive manner, radiating fins are processed on the main radiating faces, a metal net frame is covered on the auxiliary radiating faces, and a sponge body is arranged in the metal net frame, and contacts with the auxiliary radiating faces after the sponge body absorbs water. The high-radiating-performance LED streetlamp is good in radiating effect, simple in structure and low in cost.

Description

High heat dissipation street lamp
 
Technical field
The present invention relates to highway lighting apparatus field, especially, relate to a kind of LED street lamp.
 
Background technology
Along with current highway is made wider and wider, also more and more higher for the brightness requirement of street lamp, and consider power saving, promoting gradually at present LED street lamp; And the problem running in extension process is, for the LED street lamp of high brightness, its caloric value is huge, and LED wafer is stronger for the sensitiveness of temperature, under the condition of high temperature, the performance of LED is decay very soon, therefore, for a LED lamp of smaller size smaller, conventionally to configure a huge radiator; Therefore, heat dissipation problem is the subject matter that restriction LED lighting device is promoted.
And the current design for LED illuminating lamp radiator structure, main by improving shape, the distribution of radiating fin, improve radiating effect, in any case but change, because current radiating fin is all fixed, therefore, can only rely on the external distribute heat of mode of natural heat dissipation, its radiating effect is extremely limited; And for the higher structure of ask for something, configured again motor fan structure, carry out forced convertion heat radiation, except the cost of motor itself, also need to consider the cost of electric drilling match waterproof construction, cause the cost of radiator significantly to improve, be unfavorable for equally popularization and application.
 
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of high heat dissipation street lamp, this LED street lamp not only has good radiating effect, and simple in structure, and cost is lower.
The technical solution adopted for the present invention to solve the technical problems is: this high heat dissipation street lamp comprises the lamp housing, the light pole connector that interfix; Described lamp housing comprises more than one main radiating surface, and more than one auxiliary radiating surface; Described main radiating surface, the equal heat conduction of auxiliary radiating surface are connected to heat-radiating substrate described lamp housing inside, that be closely affixed with LED wafer panel; On described main radiating surface, be shaped with radiating fin; Metal screen frame of described auxiliary radiating surface upper cover, is provided with cavernous body in described metal screen frame, and described cavernous body, after water suction, is in contact with one another with described auxiliary radiating surface.
As preferably, described main radiating surface is located at the side of described lamp housing; Described auxiliary radiating surface is located at the upper surface of described lamp housing, the water suction so that cavernous body is drenched with rain; Further, the surrounding of described auxiliary radiating surface has the surrounding edge of upwards digging, and described surrounding edge and auxiliary radiating surface form the tank of an opening upwards; So that ponding.
As preferably, surface and described metal screen frame that described cavernous body deviates from described auxiliary radiating surface just interfix to the surface of auxiliary radiating surface; And under cavernous body drying regime, cavernous body just has space between the surface to described auxiliary radiating surface and auxiliary radiating surface, so that the normal heat radiation of auxiliary radiating surface; And described cavernous body inside has water baby water-absorbing resins, made by starch mixing acrylonitrile or acrylate; When after cavernous body water suction, its inner water-absorbing resins absorbs water simultaneously and acutely expands, thereby makes the described auxiliary radiating surface of intimate contact of cavernous body.
As preferably, described main radiating surface is located at the side of described lamp housing; Described auxiliary radiating surface is located at the upper surface of described lamp housing, and the upper surface of described cavernous body is provided with one deck permanent magnetism sheet; The upper surface of described metal screen frame is made up of ferromagnetics; The upper surface of described permanent magnetism sheet and metal screen frame has suitable magnetic attraction, this suitable magnetic attraction meets following condition: do not absorb water and weight when lighter at cavernous body, described magnetic attraction attracts cavernous body at the upper surface of metal screen frame, and makes between the lower surface of cavernous body and described auxiliary radiating surface to have space; After after cavernous body water suction, weight increases, described magnetic attraction is less than the gravity of cavernous body and cavernous body is come off, and the lower surface of cavernous body is contacted with described auxiliary radiating surface.
Beneficial effect of the present invention is: because this high heat dissipation street lamp is only being started working when night came, and be often now in mist vapour generates, therefore, when street lamp is started working, described cavernous body just has started to absorb airborne steam, and in the time that cavernous body absorbs a large amount of steam and becomes very moist, because the surface of cavernous body and the auxiliary radiating surface of streetlamp housing contact, therefore, amount of heat on lamp housing is by for evaporating the moisture in cavernous body, thereby the radiating effect that makes auxiliary radiating surface has had the raising of internal, the temperature that makes lamp housing is declined to a great extent.
 
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of this high heat dissipation street lamp.
Fig. 2 is embodiment mono-sectional view of cavernous body in this high heat dissipation street lamp.
Fig. 3 is embodiment bis-sectional views of cavernous body in this high heat dissipation street lamp.
 
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described:
In the embodiment shown in fig. 1, this high heat dissipation street lamp comprises the lamp housing 1, the light pole connector 2 that interfix; Main radiating surface 11 is made in the side of described lamp housing 1, lamp housing 1 upper as auxiliary radiating surface 12; Described main radiating surface 11, the equal heat conduction of auxiliary radiating surface 12 are connected to heat-radiating substrate (conventional structure, not shown) described lamp housing 1 inside, that be closely affixed with LED wafer panel; Described heat conduction connects, that is is to connect by metallic object.
On described main radiating surface 11, be shaped with radiating fin 111; Rectangular-shaped metal screen frame 3 of described auxiliary radiating surface 12 upper cover.In Fig. 1, only drawn the web plate of the upper surface of this metal screen frame, considered the definition of drawing, do not had the side web plate that draws this metal screen frame, several support edges 31 of this metal screen frame have only been drawn in side.
In described metal screen frame 3, be provided with cavernous body 4, in Fig. 1, cavernous body 4 does not have water suction, and its upper surface contacts with the upper surface of metal screen frame 3, between the lower surface of cavernous body 4 and auxiliary radiating surface 12, has space.
In the present embodiment, the surrounding of described auxiliary radiating surface 12 has the surrounding edge 121 of upwards digging, and described surrounding edge 121 and auxiliary radiating surface 12 form the tank of an opening upwards; So that ponding.
For described cavernous body 4, embodiment one as shown in Figure 2, cavernous body 4 comprises the water baby water-absorbing resins 42 of sponge body 41 and sponge body 41 inside, this water baby water-absorbing resins is made up of starch mixing acrylonitrile or acrylate, fully after water suction, tens times of original volume will be expanded to without restrained condition lower volume; When after cavernous body 4 water suctions, its inner water-absorbing resins 42 absorbs water and violent expansion simultaneously, thereby makes the described auxiliary radiating surface 12 of intimate contact of cavernous body.By this scheme, in the time that cavernous body 4 does not have water suction, do not contact with auxiliary radiating surface 12, do not affect the normal heat radiation of auxiliary radiating surface 12, and in the time that cavernous body 4 absorbs water, make auxiliary radiating surface acutely dispel the heat.
For described cavernous body 4, as shown in Figure 3, described cavernous body 4 comprises sponge body 41 to embodiment two, and one deck permanent magnetism sheet 43 of sponge body 41 upper surfaces.Now, the upper surface of the described metal screen frame 3 shown in Fig. 1 is made up of ferromagnetics; Described permanent magnetism sheet 43 has suitable magnetic attraction with the upper surface of metal screen frame 3, this suitable magnetic attraction meets following condition: do not absorb water and weight when lighter at cavernous body, cavernous body 4 is attracted the upper surface at metal screen frame 3 by described magnetic attraction, and make to have space between the lower surface of cavernous body and described auxiliary radiating surface 12; After after cavernous body 4 water suctions, weight increases, described magnetic attraction is less than the gravity of cavernous body and cavernous body is come off, and the lower surface of cavernous body 4 is contacted with described auxiliary radiating surface 12.The advantage of this scheme is similar to the embodiment mono-of cavernous body 4.
Above-mentioned high heat dissipation street lamp, owing to only starting working when night came, and be often now in mist vapour generates, therefore, when street lamp is started working, described cavernous body 4 just has started to absorb airborne steam, and in the time that cavernous body 4 absorbs a large amount of steam and becomes very moist, because the surface of cavernous body 4 and the auxiliary radiating surface 12 of streetlamp housing contact, therefore, amount of heat on lamp housing 1 is for evaporating the moisture in cavernous body, thereby makes the radiating effect of auxiliary radiating surface 12 have the raising of internal, and the temperature that makes lamp housing is declined to a great extent.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (5)

1. a high heat dissipation street lamp, comprises the lamp housing (1), the light pole connector (2) that interfix; Described lamp housing (1) comprises more than one main radiating surface (11), and more than one auxiliary radiating surface (12); Described main radiating surface (11), auxiliary radiating surface (12) all heat conduction be connected to described lamp housing (1) inner, the heat-radiating substrate that is closely affixed with LED wafer panel; On described main radiating surface (11), be shaped with radiating fin (111); It is characterized in that: described auxiliary radiating surface (12) metal screen frame of upper cover (3), is provided with cavernous body (4) in described metal screen frame (3).
2. high heat dissipation street lamp according to claim 1, is characterized in that: described main radiating surface (11) is located at the side of described lamp housing (1); Described auxiliary radiating surface (12) is located at the upper surface of described lamp housing (1).
3. high heat dissipation street lamp according to claim 2, is characterized in that: the surrounding of described auxiliary radiating surface (12) has the surrounding edge (121) of upwards digging, and described surrounding edge and auxiliary radiating surface form the tank of an opening upwards.
4. according to the high heat dissipation street lamp described in claim 1～3 any, it is characterized in that: surface and described metal screen frame (3) that described cavernous body (4) deviates from described auxiliary radiating surface (12) just interfix to the surface of auxiliary radiating surface (12); And under cavernous body drying regime, cavernous body (4) just has space between the surface to described auxiliary radiating surface (12) and auxiliary radiating surface; And described cavernous body (4) inside has water baby water-absorbing resins (42), made by starch mixing acrylonitrile or acrylate; When after cavernous body (4) water suction, its inner water-absorbing resins absorbs water simultaneously and acutely expands, and makes the intimate described auxiliary radiating surface of contact (12) of cavernous body (4).
5. according to the high heat dissipation street lamp described in claim 1～3 any, it is characterized in that: described main radiating surface (11) is located at the side of described lamp housing (1); Described auxiliary radiating surface (12) is located at the upper surface of described lamp housing (1), and the upper surface of described cavernous body (4) is provided with one deck permanent magnetism sheet (43); The upper surface of described metal screen frame (3) is made up of ferromagnetics; The upper surface of described permanent magnetism sheet and metal screen frame has suitable magnetic attraction, this suitable magnetic attraction meets following condition: do not absorb water and weight when lighter at cavernous body, described magnetic attraction attracts cavernous body (4) at the upper surface of metal screen frame (3), and makes between the lower surface of cavernous body (4) and described auxiliary radiating surface (12) to have space; After after cavernous body water suction, weight increases, described magnetic attraction is less than the gravity of cavernous body and cavernous body is come off, and the lower surface of cavernous body (4) is contacted with described auxiliary radiating surface (12).
CN201410280020.9A 2014-06-23 2014-06-23 High heat dissipation street lamp Expired - Fee Related CN104033796B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CN201610557368.7A CN106195825A (en) 2014-06-23 2014-06-23 Led street lamp
CN201610556493.6A CN106195822A (en) 2014-06-23 2014-06-23 A kind of high heat dissipation street lamp
CN201610555813.6A CN106195821A (en) 2014-06-23 2014-06-23 A kind of LED street lamp
CN201610557249.1A CN106122853A (en) 2014-06-23 2014-06-23 A kind of LED street lamp being suitable to make lamp housing temperature decline to a great extent
CN201610557250.4A CN106195824A (en) 2014-06-23 2014-06-23 Be suitable to the LED street lamp making lamp housing temperature decline to a great extent
CN201410280020.9A CN104033796B (en) 2014-06-23 2014-06-23 High heat dissipation street lamp
CN201610560073.5A CN106195826A (en) 2014-06-23 2014-06-23 High heat dissipation street lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410280020.9A CN104033796B (en) 2014-06-23 2014-06-23 High heat dissipation street lamp

Related Child Applications (6)

Application Number Title Priority Date Filing Date
CN201610557250.4A Division CN106195824A (en) 2014-06-23 2014-06-23 Be suitable to the LED street lamp making lamp housing temperature decline to a great extent
CN201610557368.7A Division CN106195825A (en) 2014-06-23 2014-06-23 Led street lamp
CN201610556493.6A Division CN106195822A (en) 2014-06-23 2014-06-23 A kind of high heat dissipation street lamp
CN201610560073.5A Division CN106195826A (en) 2014-06-23 2014-06-23 High heat dissipation street lamp
CN201610555813.6A Division CN106195821A (en) 2014-06-23 2014-06-23 A kind of LED street lamp
CN201610557249.1A Division CN106122853A (en) 2014-06-23 2014-06-23 A kind of LED street lamp being suitable to make lamp housing temperature decline to a great extent

Publications (2)

Publication Number Publication Date
CN104033796A true CN104033796A (en) 2014-09-10
CN104033796B CN104033796B (en) 2016-08-24

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ID=51464688

Family Applications (7)

Application Number Title Priority Date Filing Date
CN201410280020.9A Expired - Fee Related CN104033796B (en) 2014-06-23 2014-06-23 High heat dissipation street lamp
CN201610557249.1A Pending CN106122853A (en) 2014-06-23 2014-06-23 A kind of LED street lamp being suitable to make lamp housing temperature decline to a great extent
CN201610555813.6A Pending CN106195821A (en) 2014-06-23 2014-06-23 A kind of LED street lamp
CN201610560073.5A Pending CN106195826A (en) 2014-06-23 2014-06-23 High heat dissipation street lamp
CN201610557368.7A Pending CN106195825A (en) 2014-06-23 2014-06-23 Led street lamp
CN201610556493.6A Pending CN106195822A (en) 2014-06-23 2014-06-23 A kind of high heat dissipation street lamp
CN201610557250.4A Pending CN106195824A (en) 2014-06-23 2014-06-23 Be suitable to the LED street lamp making lamp housing temperature decline to a great extent

Family Applications After (6)

Application Number Title Priority Date Filing Date
CN201610557249.1A Pending CN106122853A (en) 2014-06-23 2014-06-23 A kind of LED street lamp being suitable to make lamp housing temperature decline to a great extent
CN201610555813.6A Pending CN106195821A (en) 2014-06-23 2014-06-23 A kind of LED street lamp
CN201610560073.5A Pending CN106195826A (en) 2014-06-23 2014-06-23 High heat dissipation street lamp
CN201610557368.7A Pending CN106195825A (en) 2014-06-23 2014-06-23 Led street lamp
CN201610556493.6A Pending CN106195822A (en) 2014-06-23 2014-06-23 A kind of high heat dissipation street lamp
CN201610557250.4A Pending CN106195824A (en) 2014-06-23 2014-06-23 Be suitable to the LED street lamp making lamp housing temperature decline to a great extent

Country Status (1)

Country Link
CN (7) CN104033796B (en)

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CN110131648A (en) * 2019-05-24 2019-08-16 湖北亮诚光电科技有限公司 A kind of solar illumination apparatus that can intelligently adjust
CN110504625A (en) * 2019-08-29 2019-11-26 杭州金心科技有限公司 A kind of waterproof cooling structure for power distribution cabinet
CN110767458A (en) * 2019-10-30 2020-02-07 江苏图腾电气科技有限公司 Self-healing low-voltage parallel capacitor
CN111076128A (en) * 2020-03-04 2020-04-28 福清阑珊灯具有限公司 Take defogging function and luminance to hang down self-cleaning's street lamp excessively
CN111878718A (en) * 2019-10-08 2020-11-03 电子科技大学中山学院 LED lamp with anti-dazzle effect
CN114791100A (en) * 2022-06-23 2022-07-26 徐州科华能源科技有限公司 Emergency lighting device for coal mining

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CN106764973B (en) * 2016-12-30 2019-05-10 重庆市志益鑫电子科技有限公司 Mounted LED light radiator structure
CN108343917B (en) * 2018-02-06 2020-12-04 浙江宏源灯具集团有限公司 Intelligent LED street lamp with high illumination brightness suitable for humid weather
CN109491475B (en) * 2018-11-23 2020-11-17 乐清市曙晟科技有限公司 Intelligent temperature control notebook computer radiator capable of achieving efficient water cooling

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Publication number Priority date Publication date Assignee Title
CN110131648A (en) * 2019-05-24 2019-08-16 湖北亮诚光电科技有限公司 A kind of solar illumination apparatus that can intelligently adjust
CN110131648B (en) * 2019-05-24 2021-09-07 湖北亮诚光电科技有限公司 Intelligent-adjustment solar lighting device
CN110504625A (en) * 2019-08-29 2019-11-26 杭州金心科技有限公司 A kind of waterproof cooling structure for power distribution cabinet
CN110504625B (en) * 2019-08-29 2020-11-03 山东光明电力科技有限公司 A waterproof cooling structure for switch board
CN111878718A (en) * 2019-10-08 2020-11-03 电子科技大学中山学院 LED lamp with anti-dazzle effect
CN110767458A (en) * 2019-10-30 2020-02-07 江苏图腾电气科技有限公司 Self-healing low-voltage parallel capacitor
CN111076128A (en) * 2020-03-04 2020-04-28 福清阑珊灯具有限公司 Take defogging function and luminance to hang down self-cleaning's street lamp excessively
CN114791100A (en) * 2022-06-23 2022-07-26 徐州科华能源科技有限公司 Emergency lighting device for coal mining
CN114791100B (en) * 2022-06-23 2022-08-26 徐州科华能源科技有限公司 Emergency lighting device for coal mining

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CN104033796B (en) 2016-08-24
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CN106195822A (en) 2016-12-07
CN106195825A (en) 2016-12-07

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