CN101852418A - Pressure balancing device and lamp using same - Google Patents
Pressure balancing device and lamp using same Download PDFInfo
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- CN101852418A CN101852418A CN201010143970A CN201010143970A CN101852418A CN 101852418 A CN101852418 A CN 101852418A CN 201010143970 A CN201010143970 A CN 201010143970A CN 201010143970 A CN201010143970 A CN 201010143970A CN 101852418 A CN101852418 A CN 101852418A
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- light fixture
- air valve
- hole
- pressure
- labyrinth
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Abstract
The invention is applicable in the field of pressure balancing structures and discloses a pressure balancing device and a lamp using the same. The pressure balancing device comprises: an air valve which can open automatically when the air pressure in the internal cavity of the lamp is higher than the external air pressure of the lamp and a mounting component fixed on the shell of the lamp, wherein the mounting component is provided with a through hole communicated with the internal cavity of the lamp; the air valve has a hollow structure and is arranged in the through hole and seals the through hole; and a gap is reserved on the air valve. The invention also provides a lamp, which comprises the shell and a light emitting member fixedly arranged in the shell, wherein the shell has a mounting hole; and the pressure balancing device is fixedly arranged in the mounting hole. The pressure balancing device and the lamp using the pressure balancing device, which are provided by the invention, have the advantages that: the lamp can work at a reasonable pressure; the service life of the lamp can be prolonged; the structure is simple; the sealing effect is good; the processing is easy; and the production cost of the product is reduced.
Description
Technical field
The invention belongs to the pressure balancing structure field, relate in particular to a kind of pressure equaliser and use the light fixture of this pressure equaliser.
Background technology
As everyone knows, consider factors such as dustproof and waterproof, the inner chamber of a lot of light fixtures is for being designed to closed cavity, reason at the bulb of light fixture inner chamber self-heating during owing to work, the temperature of light fixture inner chamber rises, and air is heated and expands simultaneously, and light fixture inner chamber temperature and pressure raises, to reduce the service life of bulb, even can lamp housing be broken because of temperature and pressure is too high or explode; When bulb quits work, the temperature of light fixture inner chamber descends, and light fixture inner chamber outside relatively is a negative pressure state, and steam, the dust in the environment entered the light fixture inner chamber easily at this moment, thereby influences the operate as normal of light fixture.In the prior art, mainly make by baroque labyrinth structure is set that cavity pressure keeps balance inside and outside the light fixture, poor sealing performance, steam still are easy to enter the light fixture inner chamber from the light fixture outside, have shortened the service life of light fixture.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of pressure equaliser is provided and has used the light fixture of this pressure equaliser, it can prolong the service life of light fixture, and simple in structure, good seal performance, handling ease, helps reducing production cost of products.
Technical scheme of the present invention is: a kind of pressure equaliser, be used for light fixture, comprise when light fixture inner chamber air pressure automatic-opening air valve during greater than the light fixture external pressure, be fixed in the installation component on the lamp casing, described air valve is hollow structure, described installation component comprises connecting elements, labyrinth member and valve gap, described connecting elements one end places the light fixture inner chamber, the other end offers the countersunk head through hole, described labyrinth member is sheathed in the described countersunk head through hole, described valve gap is connected on the described connecting elements and compresses described labyrinth member, form chamber, a labyrinth between described valve gap and the described labyrinth member, offer the through hole that can be communicated with chamber, described labyrinth and light fixture inner chamber on the member of described labyrinth, described air valve is located in the described through hole and is sealed described through hole, offer the slit on the described air valve, described labyrinth component sidewall offers some tortuous maze troughs that are provided with and can be communicated with chamber, described labyrinth and light fixture outside.
Particularly, described air valve front end is tip-angled shape, and described slit is " one " font and is positioned at the top of described air valve.
Preferably, described air valve adopts the elastomeric material manufacturing.
Particularly, offer the cannelure that can be fastened in described through hole, described cannelure and described through hole interference fit outside the described air valve.
More specifically, described connecting elements comprises the nut portions in stage casing, the upper end threaded joints of epimere, the lower end threaded joints of hypomere, and the outside of described upper end threaded joints offers the plurality of rows air drain.
More specifically, the lower surface of described nut portions offers first storage tank, is provided with first sealing ring in described first storage tank.
More specifically, an end face that fits with described labyrinth member on the described countersunk head through hole offers second storage tank, is provided with second sealing ring in described second storage tank.
Preferably, the length in described slit is between 5mm to 10mm, and described air valve adopts polythene material by injection mo(u)lding, and the material thickness of described air valve is between 1mm to 1.5mm.
Preferably, described first sealing ring adopts the elastomeric material manufacturing.
The present invention also provides a kind of light fixture, comprises housing and is fixedly arranged on the interior illuminated component of described housing, offers installing hole on the described housing, is installed with above-mentioned a kind of pressure equaliser on the described installing hole.
A kind of pressure equaliser provided by the invention and use the light fixture of this pressure equaliser, it is by being provided with the air valve in a crack with seam, at the air pressure of light fixture inner chamber during greater than the air pressure of light fixture outside, slit on the air valve can in time produce strain under the impact of air pressure open the slit, so that the pressure of light fixture inner chamber can keep balance with the light fixture outside, help prolonging the service life of light fixture, and it is simple in structure, good sealing effect, handling ease, help reducing production cost of products, when the air pressure of light fixture inner chamber is not higher than the air pressure of light fixture outside, slit on the air valve closes up under the reset response of strain, makes the steam of light fixture outside, dust can't enter the light fixture inner chamber.
Description of drawings
Fig. 1 is the generalized section of a kind of pressure equaliser of providing of the embodiment of the invention;
Fig. 2 is the exploded perspective schematic diagram of a kind of pressure equaliser of providing of the embodiment of the invention;
Fig. 3 is the schematic perspective view of a kind of pressure equaliser of providing of the embodiment of the invention;
Fig. 4 is the local enlarged diagram in A place among Fig. 1.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.As depicted in figs. 1 and 2, a kind of pressure equaliser that the embodiment of the invention provides, be used for light fixture, comprise: the air valve of opening automatically during greater than the light fixture external pressure when light fixture inner chamber 500 air pressure 200, be fixed in the installation component 100 on the lamp casing 300, described air valve 200 is hollow structure, described installation component 100 comprises: connecting elements 110, labyrinth member 120 and valve gap 130, described connecting elements 110 and labyrinth member 120 all are hollow structure, described connecting elements 110 1 ends place light fixture inner chamber 500, the other end offers countersunk head through hole 114, described labyrinth member 120 is sheathed in the described countersunk head through hole 114, described valve gap 130 is threadedly connected on the described connecting elements 110 and compresses described labyrinth member 120, help the dismounting of product, form chamber, a labyrinth 400 between described valve gap 130 and the described labyrinth member 120, offer the through hole 121 that can be communicated with chamber, described labyrinth 400 and light fixture inner chamber 500 on the described labyrinth member 120, described labyrinth member 120 sidewalls offer some tortuous maze trough (not shown)s that are provided with and can be communicated with chamber, described labyrinth 400 and light fixture outside, by such design, further strengthened the airtightness of lamps energy, particularly under the rainwater environment, avoided rainwater directly to contact with air valve 200, improved reliability of products, and under the prerequisite that the maze trough structure complexity of labyrinth member 120 can reduce greatly than prior art, can guarantee steam, dust can not enter light fixture inner chamber 500, thereby the processing cost of greatly reducing, described air valve 200 is located at described through hole 121 and is sealed described through hole 121, offer slit 201 on the described air valve 200, slit 201 can keep sealing when air valve 200 air pressure inside are not higher than air valve 200 external pressures, by such design, when light fixture is worked, the temperature of the inner chamber that seals on the light fixture rises, the pressure rises that causes light fixture inner chamber 500, air valve 200 is when light fixture inner chamber 500 air pressure are bigger than light fixture external pressure, air valve 200 is under the effect of external and internal pressure difference, gas shock slit 201 also makes slit 201 produce strains and opens, light fixture inner chamber 500 air can drain in the chamber, labyrinth 400 from the slit on the air valve 200 201, air in the chamber, labyrinth 400 is expelled to the light fixture outside through maze trough, make the pressure of light fixture inner chamber 500 and light fixture outside keep balance, light fixture can reasonably worked under the pressure; When the air of light fixture inner chamber 500 is discharged, when the pressure of light fixture inner chamber 500 and light fixture external balance, under the elastic recovery effect of air valve 200 self, slit 201 closes up and seals, make steam, the dust of light fixture outside can not arbitrarily enter light fixture inner chamber 500, the good sealing effect of light fixture helps prolonging service life of light fixture.A kind of pressure equaliser that the embodiment of the invention provides, it can be discharged for the gas unidirectional of light fixture inner chamber 500, and reliable in structure, processing are simple, help reducing product cost.
Particularly, as depicted in figs. 1 and 2, described air valve 200 front ends projection and preceding end section are tip-angled shape, described slit 201 is " one " font and is positioned at the top of described air valve 200, as shown in Figure 4, when the air pressure of light fixture inner chamber 500 was not higher than the air pressure of light fixture outside, slit 201 can keep the state that closes up and seal, and sealing property is reliable.
Preferably, described air valve 200 adopts the elastomeric material manufacturings, can guarantee that slit 201 on the air valve 200 can in time produce strain and opens when lamp interior air pressure is big, make the air of light fixture inner chamber 500 be able to timely discharge;
More specifically, as depicted in figs. 1 and 2, described air valve 200 outsides offer the cannelure 202 that can be fastened in described through hole 121, be convenient to air valve 200 is fixed on the labyrinth member 120 in the installation component 100, be tightly connected between described cannelure 202 and the described through hole 121, in the concrete structural design, cannelure 202 and through hole 121 can be set to interference fit, additionally, also can between cannelure 202 and through hole 121, be coated with fluid sealant, so that keep sealing between air valve 200 and the through hole 121, the steam that prevents the light fixture outside flows into light fixture inner chamber 500 from the space between air valve 200 and the through hole 121, and air valve 200 can be fixed on the installation component 100 reliably, also can not come off even be subjected to violent vibration stimulus lower air valve 200 at light fixture.
More specifically, as Fig. 1～shown in Figure 3, described connecting elements 110 comprises the nut portions 112 in stage casing, the upper end threaded joints 111 of epimere, the lower end threaded joints 113 of hypomere, the outside of described upper end threaded joints 111 offers plurality of rows air drain 119, so that the air of light fixture inner chamber 500 can be discharged swimmingly; During installation, lower end threaded joints 113 is arranged in the housing 300 of light fixture, acts on nut portions 112 by using spanner, and just can easily connecting elements 110 be lock onto on the light fixture with a nut (not shown), easy accessibility helps improving the efficiency of assembling of product.
More specifically, as depicted in figs. 1 and 2, the lower surface of described nut portions 112 offers first storage tank 115, be provided with first sealing ring 117 in described first storage tank 115, to avoid rainwater to flow into light fixture inner chamber 500 from the gap between installation component 100 and the housing 300, improved the water resistance and the sealing reliability of product.
More specifically, as depicted in figs. 1 and 2, an end face that fits with described labyrinth member 120 on the described countersunk head through hole 114 offers second storage tank 116, be provided with second sealing ring 118 in described second storage tank 116, avoid rainwater to flow into light fixture inner chamber 500 from the gap between labyrinth member 120 and the connecting elements 110, improved the water resistance and the sealing reliability of product.
In concrete the application, can adjust the size in slit 201 according to actual conditions, in the present embodiment, the length in described slit 201 is between 5mm to 10mm, described air valve 200 adopts polythene material by injection mo(u)lding, production cost is low and efficient is high, the material thickness of described air valve 200 is between 1mm to 1.5mm, by such design, in the time of can making light fixture inner chamber 500 air pressure than the big 0.1MPa of light fixture external pressure, slit 201 can in time produce strain, and the air of light fixture inner chamber 500 can in time be discharged, be not subjected to the influence of lamp installation orientation and light fixture vibrations, can rationally working under the pressure environment to guarantee light fixture.Additionally, also can select the concrete size in suitable material, material thickness and slit 201 according to actual conditions, make the air valve 200 can be under the pressure differential of design, slit 201 in time produces strains and gas is discharged outside the air valve 200.
Preferably, described first sealing ring 117 adopts the elastomeric material manufacturing, can pass through plastic mould moulding, the lower and good sealing effect of cost.
Preferably, described second sealing ring 118 adopts the elastomeric material manufacturing, can pass through plastic mould moulding, the lower and good sealing effect of cost.
As depicted in figs. 1 and 2, the embodiment of the invention also provides a kind of light fixture, comprise housing 300 and be fixedly arranged on illuminated component (not shown) in the described housing 300, offer installing hole 301 on the described housing 300, be installed with above-mentioned a kind of pressure equaliser on the described installing hole 301, be provided with first sealing ring 117 between housing 300 and the connecting elements 110, avoid rainwater, steam infiltrates light fixture inner chamber 500 from the gap between housing 300 and the connecting elements 110, so that light fixture can reasonably worked in the pressure limit, and can avoid steam, impurity such as dust enter light fixture inner chamber 500, help prolonging the service life of light fixture.
A kind of pressure equaliser that the embodiment of the invention provides, its course of work is as follows:
As depicted in figs. 1 and 2, when light fixture is worked, the light fixture inner chamber 500 of the sealing of light fixture rises because of the illuminated component heating makes temperature, the pressure rises that causes light fixture inner chamber 500, make the air pressure and the light fixture outside of light fixture inner chamber 500 pressure differential occur, under action of pressure, slit 201 on the air valve 200 is washed open by the gas of light fixture inner chamber 500, gas enters chamber, labyrinth 400 from light fixture inner chamber 500, and then from chamber, labyrinth 400 along maze trough and the air discharge duct 119 in connecting elements 110 outsides discharge the light fixture outsides.When the pressure balance of the pressure of light fixture inner chamber 500 and light fixture outside, air valve 200 is not subjected to the external force effect, and the strain in slit 201 resets, and slit 201 is closed up, and avoids steam and dust to enter light fixture inner chamber 500.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. pressure equaliser, be used for light fixture, it is characterized in that: comprising: the air valve of opening automatically during greater than the light fixture external pressure when light fixture inner chamber air pressure, be fixed in the installation component on the lamp casing, described air valve is hollow structure, described installation component comprises connecting elements, labyrinth member and valve gap, described connecting elements one end places the light fixture inner chamber, the other end offers the countersunk head through hole, described labyrinth member is sheathed in the described countersunk head through hole, described valve gap is connected on the described connecting elements and compresses described labyrinth member, form chamber, a labyrinth between described valve gap and the described labyrinth member, offer the through hole that can be communicated with chamber, described labyrinth and light fixture inner chamber on the member of described labyrinth, described air valve is located in the described through hole and is sealed described through hole, offer the slit on the described air valve, described labyrinth component sidewall offers some tortuous maze troughs that are provided with and can be communicated with chamber, described labyrinth and light fixture outside.
2. a kind of pressure equaliser as claimed in claim 1 is characterized in that: described air valve front end is tip-angled shape, and described slit is " one " font and is positioned at the top of described air valve.
3. a kind of pressure equaliser as claimed in claim 1 is characterized in that: described air valve adopts the elastomeric material manufacturing.
4. a kind of pressure equaliser as claimed in claim 1 is characterized in that: the described air valve outside offers the cannelure that can be fastened in described through hole, described cannelure and described through hole interference fit.
5. a kind of pressure equaliser as claimed in claim 1, it is characterized in that: described connecting elements comprises the nut portions in stage casing, the upper end threaded joints of epimere, the lower end threaded joints of hypomere, and the outside of described upper end threaded joints offers the plurality of rows air drain.
6. a kind of pressure equaliser as claimed in claim 5 is characterized in that: the lower surface of described nut portions offers first storage tank, is provided with first sealing ring in described first storage tank.
7. a kind of pressure equaliser as claimed in claim 1 is characterized in that: an end face that fits with described labyrinth member on the described countersunk head through hole offers second storage tank, is provided with second sealing ring in described second storage tank.
8. a kind of pressure equaliser as claimed in claim 1 is characterized in that: the length in described slit is between 5mm to 10mm, and described air valve adopts polythene material by injection mo(u)lding, and the material thickness of described air valve is between 1mm to 1.5mm.
9. a kind of pressure equaliser as claimed in claim 6 is characterized in that: described first sealing ring adopts the elastomeric material manufacturing.
10. a light fixture comprises housing and is fixedly arranged on the interior illuminated component of described housing, it is characterized in that: offer installing hole on the described housing, be installed with on the described installing hole as each described a kind of pressure equaliser in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010143970 CN101852418B (en) | 2010-04-02 | 2010-04-02 | Pressure balancing device and lamp using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010143970 CN101852418B (en) | 2010-04-02 | 2010-04-02 | Pressure balancing device and lamp using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101852418A true CN101852418A (en) | 2010-10-06 |
| CN101852418B CN101852418B (en) | 2013-02-13 |
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ID=42804029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010143970 Expired - Fee Related CN101852418B (en) | 2010-04-02 | 2010-04-02 | Pressure balancing device and lamp using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101852418B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423720A (en) * | 2012-05-23 | 2013-12-04 | 海洋王照明科技股份有限公司 | Explosion-proof lamp and pressure regulating device thereof |
| CN104515107A (en) * | 2013-09-26 | 2015-04-15 | 深圳市海洋王照明工程有限公司 | Pressure balance device and lamp with same |
| CN108709127A (en) * | 2018-07-27 | 2018-10-26 | 江苏舒适照明有限公司 | A kind of underground lamp of condensation-proof |
-
2010
- 2010-04-02 CN CN 201010143970 patent/CN101852418B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423720A (en) * | 2012-05-23 | 2013-12-04 | 海洋王照明科技股份有限公司 | Explosion-proof lamp and pressure regulating device thereof |
| CN103423720B (en) * | 2012-05-23 | 2017-10-13 | 海洋王照明科技股份有限公司 | Explosion-proof lamp pressure-regulating device and explosion-proof lamp |
| CN104515107A (en) * | 2013-09-26 | 2015-04-15 | 深圳市海洋王照明工程有限公司 | Pressure balance device and lamp with same |
| CN104515107B (en) * | 2013-09-26 | 2018-12-18 | 深圳市海洋王照明工程有限公司 | A kind of air-pressure balancing device and the lamps and lanterns with the air-pressure balancing device |
| CN108709127A (en) * | 2018-07-27 | 2018-10-26 | 江苏舒适照明有限公司 | A kind of underground lamp of condensation-proof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101852418B (en) | 2013-02-13 |
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Granted publication date: 20130213 Termination date: 20190402 |