CN101852418B - Pressure balancing device and lamp using same - Google Patents
Pressure balancing device and lamp using same Download PDFInfo
- Publication number
- CN101852418B CN101852418B CN 201010143970 CN201010143970A CN101852418B CN 101852418 B CN101852418 B CN 101852418B CN 201010143970 CN201010143970 CN 201010143970 CN 201010143970 A CN201010143970 A CN 201010143970A CN 101852418 B CN101852418 B CN 101852418B
- Authority
- CN
- China
- Prior art keywords
- lamp
- labyrinth
- pressure
- air
- air valve
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 6
- 230000005489 elastic deformation Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000000428 dust Substances 0.000 description 6
- 241001621399 Lampris Species 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 241000258971 Brachiopoda Species 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
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 field of pressure balance structures, and particularly relates to a pressure balance device and a lamp using the same.
Background
As is well known, in consideration of factors such as dust prevention, water prevention and the like, the inner cavities of many lamps are designed to be sealed inner cavities, and when a bulb in the inner cavity of the lamp generates heat due to self-heating during working, the temperature of the inner cavity of the lamp rises, air is heated to expand, the temperature and pressure of the inner cavity of the lamp rise, the service life of the bulb is shortened, and even the lamp shell is broken or exploded due to overhigh temperature and pressure; when the bulb stops working, the temperature of the inner cavity of the lamp is reduced, the inner cavity of the lamp is in a negative pressure state relative to the outside, and water vapor and dust in the environment are easy to enter the inner cavity of the lamp at the moment, so that the normal work of the lamp is influenced. In the prior art, the pressure of the inner cavity and the outer cavity of the lamp is kept balanced mainly by arranging the labyrinth structure with a complex structure, the sealing performance is poor, water vapor still easily enters the inner cavity of the lamp from the outside of the lamp, and the service life of the lamp is shortened.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a pressure balancing device and a lamp using the same, which can prolong the service life of the lamp, have simple structure, good sealing performance and easy processing and are beneficial to reducing the production cost of products.
The technical scheme of the invention is as follows: a pressure balancing device is used on a lamp and comprises an air valve and a mounting assembly, wherein the air valve can be automatically opened when the air pressure in an inner cavity of the lamp is greater than the air pressure outside the lamp, the mounting assembly is fixed on a shell of the lamp, the air valve is of a hollow structure and is made of elastic materials; the installation assembly comprises a connecting component, a labyrinth component and a valve cover, wherein one end of the connecting component is arranged in an inner cavity of the lamp, the other end of the connecting component is provided with a countersunk through hole, the labyrinth component is sleeved in the countersunk through hole, the valve cover is connected to the connecting component and tightly presses the labyrinth component, a labyrinth cavity is formed between the valve cover and the labyrinth component, the labyrinth component is provided with a through hole capable of communicating the labyrinth cavity with the inner cavity of the lamp, an air valve is arranged in the through hole and seals the through hole, a gap is formed in the air valve, and the side wall of the labyrinth component is provided with a plurality of labyrinth grooves which are arranged in a zigzag manner and can communicate the labyrinth cavity with the outside of the; wherein,
when the air pressure of the inner cavity of the lamp is higher than the air pressure outside the lamp, the air valve impacts the gap and enables the gap to generate elastic deformation and stretch, the air in the inner cavity of the lamp can be discharged into the labyrinth cavity from the gap on the air valve, and the air in the labyrinth cavity is discharged to the outside of the lamp through the labyrinth groove; when the air in the inner cavity of the lamp is exhausted and the pressure in the inner cavity of the lamp is balanced with the outside of the lamp, the gap is closed and sealed under the elastic recovery action of the air valve.
Specifically, the front end of the air valve is in a sharp-horn shape, and the gap is in a line shape and is positioned at the top end of the air valve.
Specifically, an annular groove which can be clamped in the through hole is formed in the outer side of the air valve, and the annular groove is in interference fit with the through hole.
More specifically, the connecting member includes a middle nut portion, an upper end threaded connection portion of the upper section, and a lower end threaded connection portion of the lower section, and a plurality of exhaust grooves are formed in the outer side of the upper end threaded connection portion.
More specifically, a first accommodating groove is formed in the lower end face of the nut portion, and a first sealing ring is arranged in the first accommodating groove.
More specifically, a second accommodating groove is formed in the upper end face of the nut portion, and a second sealing ring is arranged in the second accommodating groove.
Preferably, the length of the gap is between 5mm and 10mm, the air valve is made of polyethylene materials and is formed through injection molding, and the thickness of the material of the air valve is between 1mm and 1.5 mm.
Preferably, the first sealing ring is made of a rubber material.
The invention also provides a lamp which comprises a shell and the light-emitting component fixedly arranged in the shell, wherein the shell is provided with a mounting hole, and the pressure balancing device is fixedly arranged on the mounting hole.
When the air pressure in the inner cavity of the lamp is not higher than the air pressure outside the lamp, the gap on the air valve is closed under the reset action of elastic deformation, so that water vapor and dust outside the lamp cannot enter the inner cavity of the lamp.
Drawings
Fig. 1 is a schematic cross-sectional view of a pressure balancing apparatus according to an embodiment of the present invention;
FIG. 2 is an exploded perspective view of a pressure equalization device according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a pressure balancing apparatus according to an embodiment of the present invention;
fig. 4 is a partially enlarged schematic view of a portion a of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. As shown in fig. 1 and fig. 2, a pressure balancing apparatus provided in an embodiment of the present invention is used in a lamp, and includes: the air valve 200 capable of automatically opening when the air pressure in the lamp cavity 500 is greater than the air pressure outside the lamp, and the mounting assembly 100 fixed on the lamp shell 300, wherein the air valve 200 is of a hollow structure, and the mounting assembly 100 comprises: the lamp comprises a connecting member 110, a labyrinth member 120 and a valve cover 130, wherein the connecting member 110 and the labyrinth member 120 are hollow structures, one end of the connecting member 110 is arranged in an inner cavity 500 of the lamp, the other end of the connecting member 110 is provided with a countersunk through hole 114, the labyrinth member 120 is sleeved in the countersunk through hole 114, the valve cover 130 is connected to the connecting member 110 in a threaded manner and tightly presses the labyrinth member 120, so that the disassembly and assembly of a product are facilitated, a labyrinth cavity 400 is formed between the valve cover 130 and the labyrinth member 120, the labyrinth member 120 is provided with a through hole 121 capable of communicating the labyrinth cavity 400 with the inner cavity 500 of the lamp, the side wall of the labyrinth member 120 is provided with a plurality of labyrinth grooves (not shown in the figure) which are arranged in a zigzag manner and can communicate the labyrinth cavity 400 with the outside of the lamp, and by the design, the sealing performance of the lamp is further enhanced, particularly, by the design, when the lamp works, the temperature of the inner cavity sealed on the lamp rises to cause the air pressure of the inner cavity 500 of the lamp to rise, when the air pressure of the air valve 200 in the inner cavity 500 of the lamp is higher than the air pressure outside the lamp, the air valve 200 impacts the gap 201 and causes the gap 201 to elastically deform and open under the action of the internal and external pressure difference of the air valve 200, and the air in the inner cavity 500 of the lamp can be discharged into the labyrinth cavity 400 from the gap 201 on the air valve 200, the air in the labyrinth cavity 400 is exhausted to the outside of the lamp through the labyrinth grooves, so that the pressure of the inner cavity 500 of the lamp and the pressure of the outside of the lamp are kept balanced, and the lamp can work under reasonable pressure; when the air in the lamp cavity 500 is exhausted and the pressure in the lamp cavity 500 is balanced with the outside of the lamp, the gap 201 is closed and sealed under the elastic recovery action of the air valve 200, so that water vapor and dust outside the lamp cannot enter the lamp cavity 500 at will, the sealing effect of the lamp is good, and the service life of the lamp is prolonged. The pressure balancing device provided by the embodiment of the invention can be used for discharging the gas in the lamp cavity 500 in a one-way manner, has a reliable structure and simple processing, and is beneficial to reducing the product cost.
Specifically, as shown in fig. 1 and 2, the front end of the air valve 200 is convex, the cross section of the front end is pointed, the gap 201 is in a shape of a straight line and is located at the top end of the air valve 200, as shown in fig. 4, when the air pressure in the inner cavity 500 of the lamp is not higher than the air pressure outside the lamp, the gap 201 can be kept in a closed and closed state, and the sealing performance is reliable.
Preferably, the air valve 200 is made of an elastic material, so that the slit 201 on the air valve 200 can be elastically deformed and opened in time when the air pressure in the lamp is high, and the air in the inner cavity 500 of the lamp can be discharged in time;
more specifically, as shown in fig. 1 and 2, an annular groove 202 that can be clamped in the through hole 121 is formed outside the air valve 200, so that the air valve 200 is fixed to the labyrinth member 120 in the mounting assembly 100, the annular groove 202 is connected to the through hole 121 in a sealing manner, in a specific structural design, the annular groove 202 and the through hole 121 can be in interference fit, and additionally, a sealant can be coated between the annular groove 202 and the through hole 121 to maintain the sealing between the air valve 200 and the through hole 121, so as to prevent moisture outside the lamp from flowing into the lamp cavity 500 from a gap between the air valve 200 and the through hole 121, and the air valve 200 can be reliably fixed to the mounting assembly 100, and the air valve 200 cannot fall off even if the lamp is excited by severe vibration.
More specifically, as shown in fig. 1 to 3, the connection member 110 includes a middle nut portion 112, an upper threaded portion 111, and a lower threaded portion 113, and a plurality of air discharge grooves 119 are formed on an outer side of the upper threaded portion 111, so that air in the lamp cavity 500 can be smoothly discharged; during installation, the lower end threaded connection portion 113 is inserted into the housing 300 of the lamp, and acts on the nut portion 112 by using a wrench, and the connection member 110 can be easily locked on the lamp by using a nut (not shown in the figure), so that the assembly and disassembly are convenient, and the assembly efficiency of the product is improved.
More specifically, as shown in fig. 1 and 2, a first receiving groove 115 is formed in a lower end surface of the nut portion 112, and a first sealing ring 117 is disposed in the first receiving groove 115, so as to prevent rainwater from flowing into the lamp cavity 500 from a gap between the mounting assembly 100 and the housing 300, and improve waterproof performance and sealing reliability of the product.
More specifically, as shown in fig. 1 and 2, a second receiving groove 116 is formed in an end surface of the countersunk through hole 114, which is attached to the labyrinth member 120, and a second sealing ring 118 is disposed in the second receiving groove 116, so that rainwater is prevented from flowing into the inner cavity 500 of the lamp from a gap between the labyrinth member 120 and the connecting member 110, and the waterproof performance and the sealing reliability of the product are improved.
In the specific application, the size of the gap 201 can be adjusted according to actual conditions, in this embodiment, the length of the gap 201 is between 5mm and 10mm, the air valve 200 is made of polyethylene materials and is formed through injection molding, the production cost is low, the efficiency is high, the material thickness of the air valve 200 is between 1mm and 1.5mm, through the design, when the air pressure of a lamp cavity 500 is 0.1MPa greater than the air pressure outside the lamp, the gap 201 can be elastically deformed in time, the air in the lamp cavity 500 can be discharged in time, and the lamp is not influenced by the installation direction of the lamp and the vibration of the lamp, so that the lamp can work in a reasonable pressure environment. In addition, the material, the thickness of the material and the specific size of the gap 201 can be selected according to the actual situation, so that the gas valve 200 can elastically deform the gap 201 in time and discharge the gas out of the gas valve 200 under the designed pressure difference.
Preferably, the first sealing ring 117 is made of a rubber material, and can be molded by a plastic mold, so that the cost is low and the sealing effect is good.
Preferably, the second sealing ring 118 is made of a rubber material, and can be molded by a plastic mold, so that the cost is low and the sealing effect is good.
As shown in fig. 1 and fig. 2, an embodiment of the present invention further provides a lamp, including a housing 300 and a light emitting component (not shown in the drawings) fixedly disposed in the housing 300, wherein a mounting hole 301 is formed in the housing 300, the above-mentioned pressure balancing device is fixedly disposed on the mounting hole 301, and a first sealing ring 117 is disposed between the housing 300 and the connecting component 110, so as to prevent rainwater and water vapor from penetrating into an inner cavity 500 of the lamp from a gap between the housing 300 and the connecting component 110, so that the lamp can operate within a reasonable pressure range, and prevent impurities such as water vapor and dust from entering the inner cavity 500 of the lamp, which is beneficial to prolonging the service life of the lamp.
The pressure balancing device provided by the embodiment of the invention has the following working process:
as shown in fig. 1 and 2, when the lamp operates, the temperature of the sealed lamp cavity 500 of the lamp rises due to the heat generated by the light emitting member, so that the air pressure in the lamp cavity 500 rises, and a pressure difference occurs between the air pressure in the lamp cavity 500 and the outside of the lamp, under the action of the pressure difference, the gap 201 on the air valve 200 is flushed away by the air in the lamp cavity 500, the air enters the labyrinth cavity 400 from the lamp cavity 500, and then is exhausted from the labyrinth cavity 400 to the outside of the lamp along the labyrinth groove and the exhaust groove 119 outside the connecting member 110. When the pressure in the lamp cavity 500 is balanced with the pressure outside the lamp, the air valve 200 is not affected by external force, and the elastic deformation of the gap 201 is reset, so that the gap 201 is closed, and water vapor and dust are prevented from entering the lamp cavity 500.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A pressure balancing device is used for a lamp and is characterized in that: the method comprises the following steps: the air valve is automatically opened when the air pressure in the inner cavity of the lamp is larger than the air pressure outside the lamp, and the mounting assembly is fixed on the shell of the lamp; the installation assembly comprises a connecting component, a labyrinth component and a valve cover, wherein one end of the connecting component is arranged in an inner cavity of the lamp, the other end of the connecting component is provided with a countersunk through hole, the labyrinth component is sleeved in the countersunk through hole, the valve cover is connected to the connecting component and tightly presses the labyrinth component, a labyrinth cavity is formed between the valve cover and the labyrinth component, the labyrinth component is provided with a through hole capable of communicating the labyrinth cavity with the inner cavity of the lamp, an air valve is arranged in the through hole and seals the through hole, a gap is formed in the air valve, and the side wall of the labyrinth component is provided with a plurality of labyrinth grooves which are arranged in a zigzag manner and can communicate the labyrinth cavity with the outside of the; wherein,
when the air pressure of the inner cavity of the lamp is higher than the air pressure outside the lamp, the air valve impacts the gap and enables the gap to generate elastic deformation and stretch, the air in the inner cavity of the lamp can be discharged into the labyrinth cavity from the gap on the air valve, and the air in the labyrinth cavity is discharged to the outside of the lamp through the labyrinth groove; when the air in the inner cavity of the lamp is exhausted and the pressure in the inner cavity of the lamp is balanced with the outside of the lamp, the gap is closed and sealed under the elastic recovery action of the air valve.
2. A pressure equalizing device as in claim 1, wherein: the front end of the air valve is in a sharp-horn shape, and the gap is in a straight shape and is positioned at the top end of the air valve.
3. A pressure equalizing device as in claim 1, wherein: and an annular groove which can be clamped and fixed in the through hole is formed in the outer side of the air valve, and the annular groove is in interference fit with the through hole.
4. A pressure equalizing device as in claim 1, wherein: the connecting component comprises a nut portion at the middle section, an upper end threaded connecting portion at the upper section and a lower end threaded connecting portion at the lower section, and a plurality of exhaust grooves are formed in the outer side of the upper end threaded connecting portion.
5. A pressure equalizing device as in claim 4, wherein: the lower end face of the nut portion is provided with a first accommodating groove, and a first sealing ring is arranged in the first accommodating groove.
6. A pressure equalizing device as in claim 4, wherein: a second containing groove is formed in the upper end face of the nut portion, and a second sealing ring is arranged in the second containing groove.
7. A pressure equalizing device as in claim 1, wherein: the length of the gap is between 5mm and 10mm, the air valve is made of polyethylene materials and is formed through injection molding, and the thickness of the material of the air valve is between 1mm and 1.5 mm.
8. A pressure equalizing device as in claim 5, wherein: the first sealing ring is made of rubber materials.
9. A lamp comprises a shell and a light-emitting component fixedly arranged in the shell, and is characterized in that: the shell is provided with a mounting hole, and the pressure balancing device as claimed in any one of claims 1 to 8 is fixedly arranged on the mounting hole.
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 CN101852418A (en) | 2010-10-06 |
| CN101852418B true CN101852418B (en) | 2013-02-13 |
Family
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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
-
2010
- 2010-04-02 CN CN 201010143970 patent/CN101852418B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101852418A (en) | 2010-10-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101852418B (en) | Pressure balancing device and lamp using same | |
| CN201412706Y (en) | LED solid non-maintaining anti-explosion lamp | |
| CN101761904A (en) | Dustproof and waterproof lamp | |
| WO2013073192A1 (en) | Capacitor and method for manufacturing same | |
| CN210411366U (en) | Glue filling head assembly, glue filling machine and display module needing glue filling | |
| CN104832802B (en) | It is provided with LED bulb and the bulb assemble method of radiating tube | |
| CN105720221B (en) | A kind of metalwork pressure explosion-proof pressure release balanced valve applied to compact battery packet | |
| JP2011023351A (en) | Sealing device of fluorescent lamp tube | |
| CN104676295B (en) | Watertight light fitting | |
| CN202266842U (en) | Light emitting diode (LED) illumination lamp with sealing structure | |
| CN217401771U (en) | Waterproof ventilation valve | |
| CN204114732U (en) | The anti-multifunctional flat lamp of LED five | |
| CN102937202B (en) | A kind of automatic pressure reducing valve | |
| CN105300012A (en) | Refrigerator glass door vacuum fixing device and refrigerator | |
| CN201117574Y (en) | Electromagnetic relay water proof air-permeable structure | |
| CN207990275U (en) | Plug-in silica gel extrusion molding LED light bar | |
| CN210805973U (en) | Combiner that barrier propterty is good | |
| ES2421918T3 (en) | Clamping member for fuel injection valve | |
| CN209876788U (en) | Automobile lamp drying agent fixing structure | |
| CN115585293A (en) | Explosion-proof balanced valve and battery box | |
| CN206112540U (en) | Waterproof LED (Light emitting diode) mould | |
| CN203099448U (en) | Light-emitting diode (LED) module with structure strengthening waterproof effect | |
| CN202294782U (en) | Quick release valve | |
| CN111564769A (en) | High leakproofness switch board | |
| KR20110049117A (en) | Light fixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20190402 |