CN203275045U - Dust prevention test device - Google Patents
Dust prevention test device Download PDFInfo
- Publication number
- CN203275045U CN203275045U CN 201320175304 CN201320175304U CN203275045U CN 203275045 U CN203275045 U CN 203275045U CN 201320175304 CN201320175304 CN 201320175304 CN 201320175304 U CN201320175304 U CN 201320175304U CN 203275045 U CN203275045 U CN 203275045U
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- Prior art keywords
- dust
- test device
- container
- casing
- dust prevention
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- 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
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Abstract
The utility model provides a dust prevention test device, relates to the field of product environmental testing and specially relates to housing sealing tests for electric and electronic products. The dust prevention test device comprises a trapezoidal container, a vibrator, a square container, a sample holder, a barometer, a filter, an air flowmeter, a vacuum pump, a recirculation fan, an air duct and an outlet housing. According to utility model, vertical airstream is generated through the recirculation fan and the vertical airstream enters inclosed inner space of a box, so that dust suspends in the test box, and a uniform sand-and-dust test environment is provided. For products needing negative pressure tests, the products can be connected to the vacuum pump for vacuum-pumping. The dust prevention test device is simple in structure and convenient to use, and is especially suitable for housing sealing tests for electric and electronic products.
Description
Technical field
The utility model relates to the environmental test field, relates in particular to electron and electrician product dust-proof test.
Background technology
The product of working out of doors generally need to be done sand protection, and especially the shell of electron and electrician product need to prevent that sand and dust from entering, to guarantee the product normal operation.The advantage that relies on physical environment to carry out dust-proof test is that environmental baseline is true and reliable, but be subjected to the restriction of the factors such as region, time, weather, test tends to last longer, be difficult to realize expected effect, generally provide a kind of sand and dust test environment by dustproof test box at present, the sealing of product casing is tested.
The dust-proof test device provides an airtight test space, and the air circulation pump produces high velocity air and vertically enters box house, and uprush blows afloat sand and dust, and dust suspension makes to keep enough concentration, uniform airborne dust in chamber in chamber.Some product can produce heat in work, cause product shell internal gas pressure different with external atmosphere pressure, for this series products, vacuum pump is connected on measured piece by pipeline, and it is vacuumized, and makes interiors of products pressure lower than external atmosphere pressure.
Summary of the invention
The utility model carries out the instability of dust-proof test for the open air, dust-proof test device a kind of simple in structure, easy to use is provided.
The utility model is achieved through the following technical solutions:
The utility model comprises that casing, recirculating air device, vacuum plant consist of, it is characterized in that: described vacuum plant is fixed on the outside of casing, the lower end of recirculating air device is connected with the trapezoidal container of casing, and the upper end outlet housing of recirculating air device is connected with the top of casing.
Described casing is comprised of square container, trapezoidal container, specimen holder and Vib., and square container and trapezoidal container are tightly connected, and specimen holder is fixed on the inwall of square container, and Vib. is fixed on the outside of trapezoidal container.
Described recirculating air device is comprised of circulating fan, airduct and outlet housing, and circulating fan is fixed on the lower end of trapezoidal container, and lower end and the circulating fan of airduct are tightly connected, and the upper end of airduct is connected with the top seal of casing.
Described vacuum plant is comprised of air flowmeter, filtrator, barometer.
The beneficial effects of the utility model are: what produce in dustproof test box is uprush, can make sand and dust be uniformly distributed in whole chamber, and vacuum pump can vacuumize product, and the negative pressure test is provided, simple in structure, easy to use.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
Wherein, 1 trapezoidal container, 2 Vib.s, 3 square containers, 4 specimen holders, 5 barometers, 6 filtrators, 7 air flowmeter, 8 vacuum pumps, 9 circulating fans, 10 airducts, 11 outlet housings.
Embodiment
With reference to accompanying drawing 1, the utility model comprises that trapezoidal container 1, Vib. 2, square container 3, specimen holder 4, barometer 5, filtrator 6, air flowmeter 7, vacuum pump 8, circulating fan 9, airduct 10, outlet housing 11 consist of.During use, according to testing requirements, sand and dust in chamber (being generally talcum powder) are placed in sample on specimen holder 4, close chamber door.Start circulating fan 9, produce high velocity air, high velocity air is entered in the case of sealing by airduct 10 with the form of uprush by outlet housing 11, sand and dust in case are blown afloat, make dust suspension in case, produce uniform Sand Dust Environment, can change the size of gas velocity by regulating circulating fan 9.The sand and dust that suspend due to gravity and static affect the meeting sedimentation or be adsorbed on square container 3 and trapezoidal container 1 on, by the vibration trapezoidal container 1 of Vib. 2 discontinuity, its shake can be fallen, to keep the sand and dust concentration in case.Some sample need to be done the negative pressure test, to impel entering of dirt, at this moment need to punch on sample, then is connected with vacuum pump 8 through filtrator 6, and it is vacuumized.Filtrator 6 is in order to prevent that sand and dust from entering vacuum pump, and when barometer 5 test products vacuumized, the difference of product shell internal gas pressure and external atmosphere pressure, air flowmeter 7 were measured when vacuumizing the air mass flow of extracting out in the product shell.
Claims (4)
1. dust-proof test device, comprise that casing, recirculating air device, vacuum plant consist of, it is characterized in that: described vacuum plant is fixed on the outside of casing, and the lower end of recirculating air device is connected with the trapezoidal container of casing, and the upper end outlet housing of recirculating air device is connected with the top of casing.
2. dust-proof test device according to claim 1, it is characterized in that: described casing is comprised of square container, trapezoidal container, specimen holder and Vib., square container and trapezoidal container are tightly connected, and specimen holder is fixed on the inwall of square container, and Vib. is fixed on the outside of trapezoidal container.
3. dust-proof test device according to claim 1, it is characterized in that: described recirculating air device is comprised of circulating fan, airduct and outlet housing, circulating fan is fixed on the lower end of trapezoidal container, and lower end and the circulating fan of airduct are tightly connected, and the upper end of airduct is connected with the top seal of casing.
4. dust-proof test device according to claim 1, it is characterized in that: described vacuum plant is comprised of air flowmeter, filtrator, barometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320175304 CN203275045U (en) | 2013-04-09 | 2013-04-09 | Dust prevention test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320175304 CN203275045U (en) | 2013-04-09 | 2013-04-09 | Dust prevention test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203275045U true CN203275045U (en) | 2013-11-06 |
Family
ID=49505427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320175304 Expired - Fee Related CN203275045U (en) | 2013-04-09 | 2013-04-09 | Dust prevention test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203275045U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258921A (en) * | 2015-10-19 | 2016-01-20 | 马瑞利汽车零部件(芜湖)有限公司 | Automobile lamp waterproof dustproof test case |
| CN106323853A (en) * | 2016-08-26 | 2017-01-11 | 安徽云图信息技术有限公司 | Dustproof testing device of electronic device product |
| CN110018088A (en) * | 2019-03-05 | 2019-07-16 | 中国矿业大学 | A kind of opencut dust dirt environment simulation test system and method |
-
2013
- 2013-04-09 CN CN 201320175304 patent/CN203275045U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258921A (en) * | 2015-10-19 | 2016-01-20 | 马瑞利汽车零部件(芜湖)有限公司 | Automobile lamp waterproof dustproof test case |
| CN106323853A (en) * | 2016-08-26 | 2017-01-11 | 安徽云图信息技术有限公司 | Dustproof testing device of electronic device product |
| CN110018088A (en) * | 2019-03-05 | 2019-07-16 | 中国矿业大学 | A kind of opencut dust dirt environment simulation test system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20140409 |