CN104421695A - Lamp - Google Patents
Lamp Download PDFInfo
- Publication number
- CN104421695A CN104421695A CN201310401096.8A CN201310401096A CN104421695A CN 104421695 A CN104421695 A CN 104421695A CN 201310401096 A CN201310401096 A CN 201310401096A CN 104421695 A CN104421695 A CN 104421695A
- Authority
- CN
- China
- Prior art keywords
- light source
- lamp casing
- light fixture
- temperature
- temperature difference
- 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
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
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- 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
- F21V15/00—Protecting lighting devices from damage
- F21V15/02—Cages
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- 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
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
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- 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
- F21V25/12—Flameproof or explosion-proof arrangements
-
- 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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
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- 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
- F21V31/00—Gas-tight or water-tight arrangements
- F21V31/005—Sealing arrangements therefor
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- 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
- F21V31/00—Gas-tight or water-tight arrangements
- F21V31/03—Gas-tight or water-tight arrangements with provision for venting
Abstract
The invention relates to a lamp which comprises a lamp shell, a light source positioned in the lamp shell, a lampshade, a temperature difference sensing device and a valve switching device. When working, the light source generates heat in the lamp shell; the lampshade covers the lamp shell and a closed accommodating cavity is formed; the temperature difference sensing device is arranged in the accommodating cavity of the lamp shell, senses temperature variation in the lamp shell in real time and generates a current according to the temperature variation; the valve switching device is arranged on the lamp shell and is electrically connected with the temperature difference sensing device; the valve switching device is switched on or switched off according to on-off of the current input by the temperature difference sensing device, so that the lamp shell is communicated with or isolated from the outside air to enable balance of internal and external pressures. The lamp effectively solves the problem of potential safety hazards which are generated due to internal and external pressure difference caused by variation of the internal temperature in the working process of a conventional lamp; the service life of the lamp is prolonged; moreover, the requirements of the specific working environment are met.
Description
Technical field
The present invention relates to lighting field, particularly relate to a kind of light fixture.
Background technology
Fluorescent lamp, Halogen lamp LED, floodlight, LED have become indispensable lighting lamp in people's life, work, these light fixtures are by the various aspects be applied to more and more in people's live and work, especially IP(Ingress Protection, enter protection) protect lower place, as indoor environment.During use, these light fixtures can send different light after powered up as required, and can produce a large amount of heats in the process of work, and these heats can only be distributed by the housing conduction of light fixture mostly.
But such radiating mode often efficiency is lower, can cause the inside of light fixture and casing surface temperature uneven, reduce the service life of light fixture.And because the sealing of the housing of this light fixture is better, operationally the enclosure interior temperature of these light fixtures raises, and the pressure correspondingly in this housing constantly increases.Therefore the external and internal pressure difference formed is applied on housing, and can make housing failure when the internal pressure of this light fixture acquires a certain degree, and even may there is the potential safety hazard causing light fixture to explode, and is so difficult to the use needs meeting user.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of radiating effect better and the light fixture that internal pressure balances can be kept, its efficiently solve conventional lamp due to internal temperature change during work the inside and outside differential pressure that causes and the potential safety hazard brought.
In order to solve the problems of the technologies described above, the invention provides a kind of light fixture, it comprises lamp casing, be positioned at the light source of this lamp casing, lampshade, temperature difference induction installation and valve opening/closing device, in described lamp casing, heat is produced during described light source works, described lampshade to be located on described lamp casing and to be formed airtight accommodating cavity, described temperature difference induction installation is installed in the accommodating cavity of described lamp casing, and the variations in temperature sensed in real time in described lamp casing, and generate electric current according to variations in temperature, described valve opening/closing device is installed on described lamp casing, and be electrically connected with described temperature difference induction installation, the break-make of the electric current that described valve opening/closing device inputs according to this temperature difference induction installation and to open or closed, described lamp casing and ambient atmos are circulated or isolates to keep internal and external pressure balance.
Wherein, described lamp casing comprises diapire, roof and connects the perisporium of this diapire and roof, described diapire, roof and described perisporium surround described accommodating cavity, described roof offers openend, described perisporium offers through hole, described valve opening/closing device is installed in this through hole, and exposes described lamp casing.
Wherein, described lamp casing also comprises fixed mount, and this fixed mount is fixed on described diapire, and is positioned at the position near described through hole, and this fixed mount is used for installing and locating described valve opening/closing device.
Wherein, the lens subassembly that described lampshade is an optical lens or is made up of multiple optical lens, it is mounted on described roof, and exposes described openend, is provided with sealing ring between the faying face of described lamp casing and described lampshade.
Wherein, described light fixture also comprises circuit board, and described circuit board is fixedly arranged in the accommodating cavity of described lamp casing, and this circuit board is laid with electronic devices and components, and provides electric connection for each electronic devices and components.
Wherein, described light fixture also comprises light source base, described light source base is positioned at the accommodating cavity of described lamp casing and is installed on described circuit board, described light source is removably connected on this light source base, and be electrically connected by this light source base and described circuit board, and be electrically connected by this circuit board and a power supply, then this power supply by described circuit board and light source base for this light source provides electric energy.
Wherein, described temperature difference induction installation is thermocouple element, and it is installed in described accommodating cavity and near described light source base, the variations in temperature near described light source base measured by described thermocouple element, and converts temperature signal to induced-current.
Wherein, described valve opening/closing device is magnetic valve, and it coordinates different circuit to realize the control of expection, and controls its valve open or closedown by the break-make of control inputs electric current.
Wherein, described temperature difference induction installation senses the variations in temperature near described light source base, and produces described induced-current, and described valve opening/closing device is in "on" position and its valve is opened, between described lamp casing and outside air, gas circulates, to balance the external and internal pressure of described lamp casing.
Wherein, described light source is any one in LED, fluorescent lamp, Halogen lamp LED, floodlight, and it sends the light of respective color, intensity after powered up as required.
In light fixture provided by the present invention, described temperature difference induction installation is positioned at described lamp casing, it can sense the variations in temperature (raise or reduce) in this lamp casing in real time, and corresponding electric current can be generated according to variations in temperature, described valve opening/closing device is connected with described temperature difference induction installation, and to open according to the break-make of this temperature difference induction installation input current or closed, then between described lamp casing and outside air, gas circulates or isolates, thus achieves the dynamic equilibrium of the external and internal pressure of described light fixture.Described light fixture operationally its enclosure interior can remain on a constant pressure limit, achieve the dynamic equilibrium of the external and internal pressure of this lamp casing, efficiently solve conventional lamp due to internal temperature change during work the inside and outside differential pressure that causes and the potential safety hazard brought, improve the service life of this light fixture, and meet the requirement of specific work environments.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic perspective view of the light fixture that embodiment of the present invention provides.
Fig. 2 is the front view of the light fixture that embodiment of the present invention provides.
Fig. 3 is the cross-sectional schematic of the light fixture shown in Fig. 1.
Fig. 4 is the rearview of the light fixture that embodiment of the present invention provides.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, Fig. 2 and Fig. 3, the embodiment of the present invention provides a kind of light fixture 100, it can be the lighting lamps such as fluorescent lamp, Halogen lamp LED, floodlight, LED, is mainly used in as IP(IngressProtection such as indoor environments, enters protection) protect lower place.In embodiments of the present invention, described light fixture 100 comprises lamp casing 10, lampshade 20, circuit board 30, light source base 40, light source 50, temperature difference induction installation 60 and valve opening/closing device 70.Described lampshade 20 covers on described lamp casing 10, and described circuit board 30, light source base 40, light source 50 and temperature difference induction installation 60 are installed in described lamp casing 10, and described valve opening/closing device 70 is installed on described lamp casing 10.The variations in temperature in this lamp casing 10 responded to by described temperature difference induction installation 60, and control described valve opening/closing device 70 according to variations in temperature and to open or closed, thus achieve the circulation of this lamp casing 10 and outside air when described light fixture 100 works, and achieve the balance of external and internal pressure.
In an embodiment of the present invention, described lamp casing 10 entirety roughly in hollow and the column of one end open, it perisporium 14 comprising diapire 12, roof 13 and connect this diapire 12 and roof 13.Described diapire 12, roof 13 surround an accommodating cavity 15 with described perisporium 14, and described roof 13 offers openend 16, and described perisporium 14 offers through hole 17, and described valve opening/closing device 70 is installed in this through hole 17, and exposes described lamp casing 10.Described lamp casing 10 also comprises fixed mount 18, and this fixed mount 18 is fixed on described diapire 12, and is positioned at the position near described through hole 17, and this fixed mount 18 is for installing and locating described valve opening/closing device 70.
See also Fig. 4, in an embodiment of the present invention, the lens subassembly that described lampshade 20 can be an optical lens or is made up of multiple optical lens, its entirety is roughly in spherical crown shape.Be specially, described lampshade 20 entirety is roughly hemispheric lampshade, and it is mounted on described roof 13, and exposes described openend 16, thus in described lamp casing 10, form airtight accommodating cavity 15, the light that this lampshade 20 sends for light source described in transmission 50.Be appreciated that and can set up sealing ring between described lamp casing 10 and the faying face of described lampshade 20, so as to prevent extraneous steam further, that dust and other impurities enters described lamp casing 10 is inner.
In an embodiment of the present invention, described circuit board 30 can be printed circuit board (PCB) (printed circuit board, PCB), and it is fixedly arranged in the accommodating cavity 15 of described lamp casing 10.The electronic devices and components such as power circuit, mu balanced circuit, charge protector, amplifying circuit laid by this circuit board 30, and provides electric connection for each electronic devices and components.
Described light source base 40 entirety is roughly the round table-like of hollow, and it is positioned at the accommodating cavity 15 of described lamp casing 10, and is installed on described circuit board 30.Described light source 40 is removably connected on this light source base 40, and be electrically connected with described circuit board 30 by this light source base 40, and then be electrically connected by this circuit board 30 and a power supply, then this power supply by described circuit board 30 and light source base 40 for this light source 50 provides electric energy.
Described light source 50 is positioned at the accommodating cavity 15 of described lamp casing 10, and is removably installed on described light source base 40.In embodiments of the present invention, described light source 50 can be in LED, fluorescent lamp, Halogen lamp LED, floodlight any one, it sends the light of respective color, intensity as required after being energized by described power socket 40.
In embodiments of the present invention, described temperature difference induction installation 60 is installed in the accommodating cavity 15 of described lamp casing 10 sealing, and be specifically positioned at described light source base 40 annex, it is in order to sense the variations in temperature in this lamp casing 10 in real time.Be specially, described temperature difference induction installation 60 can be thermocouple element, and it directly can measure the variations in temperature near described light source base 40, and converts temperature signal to corresponding electric current.Can produce a large amount of heats after described light source 50 energising is lighted, the temperature near described light source base 40 raises, then this temperature difference induction installation 60 senses the variations in temperature near this light source base 40, thus produces corresponding induced-current.Be appreciated that this temperature difference induction installation 60 can't detect the variations in temperature near described light source base 40, namely cannot obtain temperature signal, also temperature signal can not be converted to induced-current when described light source 50 extinguishes or reaches constant temperature in described lamp casing 10.
In an embodiment of the present invention, described valve opening/closing device 70 is installed on the fixed mount 18 in described lamp casing 10, and exposes described lamp casing 10 by described through hole 17, and namely this valve opening/closing device 70 is embedded in described through hole 17.Described valve opening/closing device 70 is electrically connected with described temperature difference induction installation 60, and control described valve opening/closing device 70 according to the change of temperature by this temperature difference induction installation 60 and to open or closed, and then achieve the circulation of this lamp casing 10 and outside air when described light fixture 100 works, and achieve the balance of external and internal pressure.Such as, after described light source 50 energising is lighted, described temperature difference induction installation 60 senses the variations in temperature near this light source base 40, and produce corresponding induced-current, now described valve opening/closing device 70 is in open mode, then between described lamp casing 10 and outside air, gas circulates, and the internal pressure of this lamp casing 10 reduces, and so namely achieves the balance of external and internal pressure.When described light source 50 quits work or reaches constant temperature in described lamp casing 10, this temperature difference induction installation 60 cannot detect the variations in temperature near described light source base 40, also temperature signal can not be converted to induced-current, now described valve opening/closing device 70 is in closure state, then seal isolation between described lamp casing 10 and outside air, cannot carry out gas circulation.
In an embodiment of the present invention, described valve opening/closing device 70 can be a magnetic valve (electromagneticvalve), it can coordinate different circuit to realize the control of expection, and controls its valve open or closedown by the break-make of control inputs electric current.Be specially, after described light source 50 energising is lighted, described temperature difference induction installation 60 senses the variations in temperature near this light source base 40, just corresponding induced-current is produced, then described valve opening/closing device 70 is in "on" position, and its valve is opened, then between described lamp casing 10 and outside air, gas circulates, the internal pressure of this lamp casing 10 reduces, and so namely achieves the dynamic equilibrium of external and internal pressure.When described light source 50 extinguishes or reaches constant temperature in described lamp casing 10, this temperature difference induction installation 60 cannot detect the variations in temperature near described light source base 40, also temperature signal can not be converted to induced-current, now described valve opening/closing device 70 is in off-position, the valve of this valve opening/closing device 70 is closed, then seal isolation between described lamp casing 10 and outside air, cannot carry out gas circulation.
See also Fig. 1 to Fig. 4, during use, be energized to described light fixture 100, described light source 50 is lighted after being energized, and produces a large amount of heats, and the temperature near described light source base 40 raises, and produces variations in temperature.Described temperature difference induction installation 60 senses the variations in temperature near this light source base 40, and converts temperature signal to corresponding induced-current, and by this current delivery to described valve opening/closing device 70.This valve opening/closing device 70 is in "on" position, its valve open, then between described lamp casing 10 and outside air, gas circulates, and the internal pressure of this lamp casing 10 reduces, and so namely achieves the balance of external and internal pressure.When described light source 50 extinguish (as this light source 50 power-off) or as described in be in steady temperature scope in lamp casing 10 time, described temperature difference induction installation 60 can't detect the variations in temperature near described light source base 40, also temperature signal can not be converted to induced-current, now described valve opening/closing device 70 is in off-position, the valve of this valve opening/closing device 70 is closed, then seal isolation between described lamp casing 10 and outside air, cannot carry out gas circulation.Therefore, when the temperature in described lamp casing 10 raises or reduce, described temperature difference induction installation 60 sensing temperature change, and control described valve opening/closing device 70 and open, then between described lamp casing 10 and outside air, gas circulates, the internal pressure of this lamp casing 10 is reduced, so namely achieves the dynamic equilibrium of the external and internal pressure of described light fixture 100.
In sum, in light fixture 100 provided by the present invention, described temperature difference induction installation 60 is positioned at described lamp casing 10, it can sense the variations in temperature (raise or reduce) in this lamp casing 10 in real time, and corresponding electric current can be generated according to variations in temperature, described valve opening/closing device 70 is connected with described temperature difference induction installation 60, and to open according to the break-make of this temperature difference induction installation 60 input current or closed, then between described lamp casing 10 and outside air, gas circulates or isolates, thus achieves the dynamic equilibrium of the external and internal pressure of described light fixture 100.Described light fixture 100 operationally its enclosure interior can remain on a constant pressure limit, achieve the dynamic equilibrium of the external and internal pressure of this lamp casing 10, efficiently solve conventional lamp due to internal temperature change during work the inside and outside differential pressure that causes and the potential safety hazard brought, improve the service life of this light fixture 100, and meet the requirement of specific work environments.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a light fixture, it light source comprising lamp casing and be positioned at this lamp casing, in described lamp casing, heat is produced during described light source works, it is characterized in that, described fitting structure also comprises lampshade, temperature difference induction installation and valve opening/closing device, described lampshade to be located on described lamp casing and to be formed airtight accommodating cavity, described temperature difference induction installation is installed in the accommodating cavity of described lamp casing, and the variations in temperature sensed in real time in described lamp casing, and generate electric current according to variations in temperature, described valve opening/closing device is installed on described lamp casing, and be electrically connected with described temperature difference induction installation, the break-make of the electric current that described valve opening/closing device inputs according to this temperature difference induction installation and to open or closed, described lamp casing and ambient atmos are circulated or isolates to keep internal and external pressure balance.
2. light fixture according to claim 1, it is characterized in that, described lamp casing comprises diapire, roof and connects the perisporium of this diapire and roof, described diapire, roof and described perisporium surround described accommodating cavity, described roof offers openend, described perisporium offers through hole, and described valve opening/closing device is installed in this through hole, and exposes described lamp casing.
3. light fixture according to claim 2, is characterized in that, described lamp casing also comprises fixed mount, and this fixed mount is fixed on described diapire, and is positioned at the position near described through hole, and this fixed mount is used for installing and locating described valve opening/closing device.
4. light fixture according to claim 2, it is characterized in that, the lens subassembly that described lampshade is an optical lens or is made up of multiple optical lens, it is mounted on described roof, and expose described openend, be provided with sealing ring between the faying face of described lamp casing and described lampshade.
5. light fixture according to claim 1, is characterized in that, described light fixture also comprises circuit board, and described circuit board is fixedly arranged in the accommodating cavity of described lamp casing, and this circuit board is laid with electronic devices and components, and provides electric connection for each electronic devices and components.
6. light fixture according to claim 5, it is characterized in that, described light fixture also comprises light source base, described light source base is positioned at the accommodating cavity of described lamp casing and is installed on described circuit board, described light source is removably connected on this light source base, and be electrically connected by this light source base and described circuit board, and pass through this circuit board and a power supply is electrically connected, then this power supply by described circuit board and light source base for this light source provides electric energy.
7. light fixture according to claim 6, it is characterized in that, described temperature difference induction installation is thermocouple element, and it to be installed in described accommodating cavity and near described light source base, the variations in temperature near described light source base measured by described thermocouple element, and converts temperature signal to induced-current.
8. light fixture according to claim 7, is characterized in that, described valve opening/closing device is magnetic valve, and it coordinates different circuit to realize the control of expection, and controls its valve open or closedown by the break-make of control inputs electric current.
9. light fixture according to claim 8, it is characterized in that, described temperature difference induction installation senses the variations in temperature near described light source base, and produce described induced-current, described valve opening/closing device is in "on" position and its valve is opened, between described lamp casing and outside air, gas circulates, to balance the external and internal pressure of described lamp casing.
10. light fixture according to claim 1, is characterized in that, described light source is any one in LED, fluorescent lamp, Halogen lamp LED, floodlight, and it sends the light of respective color, intensity after powered up as required.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310401096.8A CN104421695A (en) | 2013-09-05 | 2013-09-05 | Lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310401096.8A CN104421695A (en) | 2013-09-05 | 2013-09-05 | Lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104421695A true CN104421695A (en) | 2015-03-18 |
Family
ID=52971464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310401096.8A Pending CN104421695A (en) | 2013-09-05 | 2013-09-05 | Lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104421695A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108954072A (en) * | 2018-04-24 | 2018-12-07 | 浙江联品电子科技有限公司 | A kind of LED anti-explosion lamp of transmitter welding shop |
-
2013
- 2013-09-05 CN CN201310401096.8A patent/CN104421695A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108954072A (en) * | 2018-04-24 | 2018-12-07 | 浙江联品电子科技有限公司 | A kind of LED anti-explosion lamp of transmitter welding shop |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150318 |
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| WD01 | Invention patent application deemed withdrawn after publication |