CN110440164A - A kind of oscillating-type radiating lamp - Google Patents
A kind of oscillating-type radiating lamp Download PDFInfo
- Publication number
- CN110440164A CN110440164A CN201910726035.6A CN201910726035A CN110440164A CN 110440164 A CN110440164 A CN 110440164A CN 201910726035 A CN201910726035 A CN 201910726035A CN 110440164 A CN110440164 A CN 110440164A
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- China
- Prior art keywords
- fixed
- lamp
- piston tube
- lamp body
- piston
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
-
- 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
- F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
- F21V29/61—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by control arrangements
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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 discloses a kind of oscillating-type radiating lamps, including the lamp holder being fixed on the downside of lamp body, the lower wall of the lamp holder is equipped with pedestal, the upper side wall of the pedestal is fixed with connecting rod, the rotation connection of the upper end of the lamp holder and connecting rod, symmetrically arranged sliding slot there are two being opened up in the lamp body, the lower wall of the lamp body offers the port being connected to in sliding slot, sliding has sliding block in the sliding slot, reset spring is fixed between the sliding block and the inner roof wall of sliding slot, symmetrically there are two struts for the upper side wall of the pedestal.Advantage is: the present invention makes piston move down the connection for carrying out electromagnet when working by lamp body and generate heat, lamp holder is pushed up to swing by magnetic repulsion force, hot-air is discharged for sliding block movement in sliding slot, passes through the reciprocally swinging of lamp holder, cold air sequentially enters discharge, realizes the heat dissipation of lamp body.
Description
Technical field
The present invention relates to technical field of lamps more particularly to a kind of oscillating-type radiating lamps.
Background technique
Lamps and lanterns refer to can light transmission, distribution and the utensil for changing light source light distribution.
Lamps and lanterns can generate a large amount of heat because of itself element manipulation in use, and traditional lamps and lanterns are generally used in lamps and lanterns
Outer wall on setting fin radiate, heat dissipation effect is poor, or setting venthole radiate, be easy to cause dust to enter,
Influence lamps and lanterns work heat dissipation effect.
For this purpose, we have proposed a kind of oscillating-type radiating lamps to solve the above problems.
Summary of the invention
The purpose of the present invention is to solve the problems in background techniques, and a kind of oscillating-type radiating lamp proposed.
To achieve the goals above, present invention employs following technical solutions: a kind of oscillating-type radiating lamp, including fixation
The lower wall of lamp holder on the downside of lamp body, the lamp holder is equipped with pedestal, and the upper side wall of the pedestal is fixed with connecting rod, the lamp
Seat is rotatablely connected with the upper end of connecting rod, opened up in the lamp body there are two symmetrically arranged sliding slot, the lower wall of the lamp body
The port being connected to in sliding slot is offered, sliding has sliding block in the sliding slot, fixed between the sliding block and the inner roof wall of sliding slot
There is reset spring, for the upper side wall of the pedestal symmetrically there are two strut, each strut is located in one of the downside of port,
And the drawstring fixed across port and sliding block lower wall is fixed on strut, it is embedded on the pedestal and extends to the intracorporal work of lamp
Plug pipe, the piston tube upper end are embedded with heat conducting bar, sliding and piston, the upside of the piston and piston tube in the piston tube
Between be filled with inflation fluid, the lower wall of the piston tube is integrally formed with protrusion, and the lower end of the protrusion is fixed with and lamp body
First electric contravention of inside connection is rotatably connected to bull stick, the interior bottom of the bull stick and piston tube on the inner wall of the piston tube
Adjustable spring is fixed between wall, the upper side wall of the bull stick is fixed with the second electric contravention, and the upper side wall of the pedestal is fixed with
The electromagnet being connect by conducting wire with the second electric contravention on the downside of piston tube is embedded with outside piston tube on the lamp holder
The magnet block of side.
In a kind of above-mentioned oscillating-type radiating lamp, integrally formed with positioned at piston underside on the inner wall of the piston tube
Flange, be fixed with connecting spring between the flange and piston.
In a kind of above-mentioned oscillating-type radiating lamp, the upper side wall of the lamp holder one end and pedestal far from piston tube it
Between be fixed with fixed spring.
In a kind of above-mentioned oscillating-type radiating lamp, the conducting wire uses elastic wire.
Compared with prior art, the advantages of this oscillating-type radiating lamp, is:
1, the heat that the work of lamp body internal element generates is directed in piston tube by heat conducting bar, makes the inflation fluid in piston tube
Expanded by heating pushes piston to move down, and the first electric contravention is in contact with the second electric contravention, carries out electric power and electromagnet in lamp body
Between circuit connect, generate electromagnet magnetic, the magnetic repulsion force passed through between electromagnet and magnet block pushes the one of lamp holder
End up rotates；
2, when lamp holder one end up rotates, conducting wire pulls bull stick to rotate down, between the first electric contravention and the second electric contravention
Contact disconnect, electromagnet loses magnetism, and the other end squeezes fixed spring and rotates down, later by the reversed bullet of fixed spring
Power rotates lamp holder up, and conducting wire restores, and the first electric contravention is contacted again with the second electric contravention, and electromagnet generates magnetism, again
It pushes lamp holder up to rotate, pulls sliding block to move down again, hot-air is discharged；
3, when lamp body restores, reset spring return, cold air enters sliding slot, is led to again by the absorption heat that enters of cold air
Hot-air is discharged for the movement for crossing sliding block, and lamp body is made to cool down, and after lamp body temperature restores, the volume of inflation fluid is restored, even
Connecing moves up piston under the reversed elastic force of spring, and the connection between the first electric contravention and the second electric contravention disconnects, and stops lamp body
It swings；
In conclusion the present invention makes piston move down the connection for carrying out electromagnet when working by lamp body and generate heat, pass through
Magnetic repulsion force pushes lamp holder up to swing, and hot-air is discharged for sliding block movement in sliding slot, by the reciprocally swinging of lamp holder, cold sky
Gas sequentially enters discharge, realizes the heat dissipation of lamp body.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of oscillating-type radiating lamp proposed by the present invention；
Fig. 2 is the enlarged drawing of part A in Fig. 1.
In figure: 1 pedestal, 2 connecting rods, 3 lamp holders, 4 lamp bodies, 5 sliding slots, 6 sliding blocks, 7 reset springs, 8 struts, 9 drawstrings, 10 electricity
Magnet, 11 magnet blocks, 12 piston tubes, 13 heat conducting bars, 14 pistons, 15 connecting springs, 16 bull sticks, 17 adjustable springs, 18 fixed bullets
Spring.
Specific embodiment
Following embodiment only exists in illustrative purpose, limits the scope of the invention without being intended to.
Referring to Fig.1-2, a kind of oscillating-type radiating lamp, the lamp holder 3 including being fixed on 4 downside of lamp body, the lower wall of lamp holder 3
Equipped with pedestal 1, the upper side wall of pedestal 1 is fixed with connecting rod 2, and lamp holder 3 and the upper end of connecting rod 2 are rotatablely connected, open up in lamp body 4
There are two symmetrically arranged sliding slot 5, the lower wall of lamp body 4 offers the port being connected to in sliding slot 5, and sliding has cunning in sliding slot 5
Block 6 is fixed with reset spring 7, the heat that the air of sliding slot 5 generates when working lamp body 4 between sliding block 6 and the inner roof wall of sliding slot 5
Amount is adsorbed, and when sliding block 6 slides, hot-air is released, after reset spring 7 is moved back with movable slider 6, cold air is again introduced into
Carry out the absorption of heat.
For the upper side wall of pedestal 1 symmetrically there are two strut 8, each strut 8 is located in one of the downside of port, and strut 8
On be fixed with the drawstring 9 fixed across port and 6 lower wall of sliding block, be embedded with the piston tube extended in lamp body 4 on pedestal 1
12,12 upper end of piston tube is embedded with heat conducting bar 13, sliding and piston 14 in piston tube 12, the upside of piston 14 and piston tube 12 it
Between be filled with inflation fluid, inflation fluid can be used the substance that kerosene etc. is expanded under heat, one on the inner wall of piston tube 12
The flange for being located at 14 downside of piston is formed, connecting spring 15, the work of 4 internal element of lamp body are fixed between flange and piston 14
The heat of generation is directed in piston tube 12 by heat conducting bar 13, makes the inflation fluid expanded by heating in piston tube 12, pushes piston 14
It moves down, flange is press-connected spring 15, convenient for the reset of subsequent piston 14.
The lower wall of piston tube 12 integrally formed with protrusion, raised lower end be fixed with connected inside lamp body 4 first
Electric contravention, when lamp body 4 works, the first electric contravention is powered, and bull stick 16 is rotatably connected on the inner wall of piston tube 12, is turned
Adjustable spring 17 is fixed between bar 16 and the inner bottom wall of piston tube 12, the upper side wall of bull stick 16 is fixed with the second electric contravention, base
The upper side wall of seat 1 is fixed with the electromagnet 10 connecting by conducting wire with the second electric contravention positioned at 12 downside of piston tube, and conducting wire is adopted
With elastic wire, the stretching of conducting wire when elastic wire is swung convenient for subsequent lamp holder 3 is embedded with positioned at piston tube on lamp holder 3
The magnet block 11 in 12 outsides, is fixed with fixed spring 18 between the one end of lamp holder 3 far from piston tube 12 and the upper side wall of pedestal 1,
Piston 14 moves down, and the first electric contravention is in contact with the second electric contravention, carries out the electricity in lamp body 4 between electric power and electromagnet 10
Road is connected, and electromagnet 10 is made to generate magnetism, and one end of lamp holder 3 is pushed by the magnetic repulsion force between electromagnet 10 and magnet block 11
It up rotates, drawstring 9 pulls sliding block 6 to move down, and the hot-air in sliding slot 5 is squeezed out.
When 3 one end of lamp holder up rotates, conducting wire pulls bull stick 16 to rotate down, between the first electric contravention and the second electric contravention
Contact disconnect, electromagnet 10 loses magnetism, and the other end squeezes fixed spring 18 and rotates down, later by fixed spring 18
Reversed elastic force rotates lamp holder 3 up, and conducting wire restores, and the first electric contravention is contacted again with the second electric contravention, and electromagnet 10 generates
Magnetism pushes lamp holder 3 up to rotate again, pulls sliding block 6 to move down again, hot-air is discharged, when lamp body 4 restores,
Reset spring 7 moves back, and cold air enters sliding slot 5, will be hot empty by the movement for passing through sliding block 6 again into absorption heat of cold air
Gas discharge, makes lamp body 4 cool down, and after 4 temperature of lamp body is restored, the volume of inflation fluid is restored, in the reversed bullet of connecting spring 15
Move up piston 14 under power, the connection between the first electric contravention and the second electric contravention disconnects, and stops the swing of lamp body 4.
Now operating principle of the invention is set forth as follows:
When lamp body 4 is worked, the heat that the work of 4 internal element of lamp body generates is directed at piston tube 12 by heat conducting bar 13
It is interior, make the inflation fluid expanded by heating in piston tube 12, piston 14 is pushed to move down, the first electric contravention connects with the second electric contravention
Touching carries out circuit between electric power and electromagnet 10 in lamp body 4 and connects, electromagnet 10 is made to generate magnetism, by electromagnet 10 with
Magnetic repulsion force between magnet block 11 pushes one end of lamp holder 3 up to rotate, and drawstring 9 pulls sliding block 6 to move down, by sliding slot 5
Interior hot-air squeezes out, while conducting wire pulls bull stick 16 to rotate down, and the contact between the first electric contravention and the second electric contravention is disconnected
It opens, electromagnet 10 loses magnetism, and the other end squeezes fixed spring 18 and rotates down, later by the reversed elastic force of fixed spring 18
Rotate lamp holder 3 up, conducting wire restores, and the first electric contravention is contacted again with the second electric contravention, and electromagnet 10 generates magnetism, again
It pushes lamp holder 3 up to rotate, pulls sliding block 6 to move down again, hot-air is discharged, when lamp body 4 restores, reset spring 7
Return, cold air enter sliding slot 5, and hot-air is discharged by the movement for passing through sliding block 6 again into absorption heat of cold air, makes
Lamp body 4 cools down, and after 4 temperature of lamp body is restored, the volume of inflation fluid is restored, and makes piston under the reversed elastic force of connecting spring 15
14 move up, and the connection between the first electric contravention and the second electric contravention disconnects, and stop the swing of lamp body 4.
It further illustrates, it is above-mentioned to be fixedly connected unless specifically defined or limited otherwise, otherwise to shall be understood in a broad sense, example
Such as, it can be welding, be also possible to gluing, or be integrally formed the customary means well known to those skilled in the art such as setting.
Although be used more herein pedestal 1, connecting rod 2, lamp holder 3, lamp body 4, sliding slot 5, sliding block 6, reset spring 7,
Strut 8, electromagnet 10, magnet block 11, piston tube 12, heat conducting bar 13, piston 14, connecting spring 15, bull stick 16, stretches drawstring 9
The terms such as spring 17, fixed spring 18, but it does not exclude the possibility of using other terms.The use of these items is only for
It is more convenient to describe and explain essence of the invention；It is construed as any additional limitation all and is and spirit of that invention
It disagrees.
Claims (4)
1. a kind of oscillating-type radiating lamp, including the lamp holder (3) being fixed on the downside of lamp body (4), which is characterized in that the lamp holder
(3) lower wall is equipped with pedestal (1), and the upper side wall of the pedestal (1) is fixed with connecting rod (2), the lamp holder (3) and connecting rod
(2) upper end rotation connection, opens up that there are two symmetrically arranged sliding slot (5), the downsides of the lamp body (4) in the lamp body (4)
Wall is offered to be had sliding block (6) with the interior port being connected to of sliding slot (5), the interior sliding of the sliding slot (5), the sliding block (6) and sliding slot (5)
Inner roof wall between be fixed with reset spring (7), symmetrically there are two strut (8), each branch for the upper side wall of the pedestal (1)
Bar (8) is located in one of the downside of port, and the drawing fixed across port and sliding block (6) lower wall is fixed on strut (8)
It restricts (9), is embedded with the piston tube (12) extended in lamp body (4) on the pedestal (1), piston tube (12) upper end is embedded with
Heat conducting bar (13), sliding and piston (14) in the piston tube (12), between the upside and piston tube (12) of the piston (14)
Filled with inflation fluid, the lower wall of the piston tube (12) is integrally formed with protrusion, and the lower end of the protrusion is fixed with and lamp body
(4) internal the first electric contravention connected is rotatably connected to bull stick (16) on the inner wall of the piston tube (12), the bull stick (16)
It is fixed between the inner bottom wall of piston tube (12) adjustable spring (17), the upper side wall of the bull stick (16) is fixed with the second electricity touching
End, the upper side wall of the pedestal (1) are fixed with the electricity connecting by conducting wire with the second electric contravention on the downside of piston tube (12)
Magnet (10), the magnet block (11) being embedded on the lamp holder (3) on the outside of piston tube (12).
2. a kind of oscillating-type radiating lamp according to claim 1, which is characterized in that on the inner wall of the piston tube (12)
Integrally formed with the flange being located on the downside of piston (14), connecting spring (15) are fixed between the flange and piston (14).
3. a kind of oscillating-type radiating lamp according to claim 1, which is characterized in that the lamp holder (3) is far from piston tube
(12) fixed spring (18) are fixed between the upper side wall of one end and pedestal (1).
4. a kind of oscillating-type radiating lamp according to claim 1, which is characterized in that the conducting wire uses elastic wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910726035.6A CN110440164B (en) | 2019-08-07 | 2019-08-07 | Swing type heat dissipation lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910726035.6A CN110440164B (en) | 2019-08-07 | 2019-08-07 | Swing type heat dissipation lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110440164A true CN110440164A (en) | 2019-11-12 |
| CN110440164B CN110440164B (en) | 2021-11-30 |
Family
ID=68433807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910726035.6A Active CN110440164B (en) | 2019-08-07 | 2019-08-07 | Swing type heat dissipation lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110440164B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111146705A (en) * | 2020-01-20 | 2020-05-12 | 张金辉 | Automatic flicking self-protection power distribution cabinet based on capacitance change |
| CN112762386A (en) * | 2021-01-14 | 2021-05-07 | 周述才 | Bury lamp fast heat dissipation type LED |
| CN113418170A (en) * | 2021-06-23 | 2021-09-21 | 徐桂云 | Electric energy storage street lamp equipment for wind power generation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004127898A (en) * | 2002-10-04 | 2004-04-22 | Hiroshi Kano | Vibration responsive switch |
| CN204026325U (en) * | 2014-06-25 | 2014-12-17 | 遵义火炎焱光电科技有限公司 | A kind of automatic heat radiation LED street lamp |
| CN207179230U (en) * | 2017-08-04 | 2018-04-03 | 江门市卡迪光电科技有限公司 | A kind of eardrum promotes the LED of radiating |
| CN207539860U (en) * | 2017-09-28 | 2018-06-26 | 刘玉婕 | A kind of LED light of included heat sinking function |
| CN207584675U (en) * | 2017-10-22 | 2018-07-06 | 徐荫环 | A kind of panel heat radiating type locomotive LED light |
| CN207962337U (en) * | 2018-04-02 | 2018-10-12 | 西北民族大学 | A kind of tunnel dedicated lamp |
-
2019
- 2019-08-07 CN CN201910726035.6A patent/CN110440164B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004127898A (en) * | 2002-10-04 | 2004-04-22 | Hiroshi Kano | Vibration responsive switch |
| CN204026325U (en) * | 2014-06-25 | 2014-12-17 | 遵义火炎焱光电科技有限公司 | A kind of automatic heat radiation LED street lamp |
| CN207179230U (en) * | 2017-08-04 | 2018-04-03 | 江门市卡迪光电科技有限公司 | A kind of eardrum promotes the LED of radiating |
| CN207539860U (en) * | 2017-09-28 | 2018-06-26 | 刘玉婕 | A kind of LED light of included heat sinking function |
| CN207584675U (en) * | 2017-10-22 | 2018-07-06 | 徐荫环 | A kind of panel heat radiating type locomotive LED light |
| CN207962337U (en) * | 2018-04-02 | 2018-10-12 | 西北民族大学 | A kind of tunnel dedicated lamp |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111146705A (en) * | 2020-01-20 | 2020-05-12 | 张金辉 | Automatic flicking self-protection power distribution cabinet based on capacitance change |
| CN112762386A (en) * | 2021-01-14 | 2021-05-07 | 周述才 | Bury lamp fast heat dissipation type LED |
| CN113418170A (en) * | 2021-06-23 | 2021-09-21 | 徐桂云 | Electric energy storage street lamp equipment for wind power generation |
| CN113418170B (en) * | 2021-06-23 | 2022-12-06 | 国网湖北省电力有限公司襄阳供电公司 | Electric energy storage street lamp equipment for wind power generation |
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| Publication number | Publication date |
|---|---|
| CN110440164B (en) | 2021-11-30 |
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Effective date of registration: 20210729 Address after: No.2-1, Nanshan Road, Huangling village, zhangban Town, Taiwan investment zone, Quanzhou City, Fujian Province, 362000 Applicant after: Quanzhou Taiwan investment zone ruichengwen Technology Co.,Ltd. Address before: 312580 no.85-3, Houzhai, Xishan village, dashiju Town, Xinchang County, Shaoxing City, Zhejiang Province Applicant before: Xinchang Chenghui Electrical and Mechanical Equipment Co.,Ltd. |
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Effective date of registration: 20211110 Address after: 221400 Bei Gou Zhen Zhong Zhuang Cun, Xinyi City, Xuzhou City, Jiangsu Province Applicant after: Jiangsu Puya Lighting Technology Co., Ltd Address before: 362000 No. 2-1, Nanshan Road, Huangling village, zhangban Town, Taiwan investment zone, Quanzhou City, Fujian Province Applicant before: Quanzhou Taiwan investment zone ruichengwen Technology Co., Ltd |
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