CN204376682U - Self-closed type dustproof transducer - Google Patents
Self-closed type dustproof transducer Download PDFInfo
- Publication number
- CN204376682U CN204376682U CN201420753387.3U CN201420753387U CN204376682U CN 204376682 U CN204376682 U CN 204376682U CN 201420753387 U CN201420753387 U CN 201420753387U CN 204376682 U CN204376682 U CN 204376682U
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- CN
- China
- Prior art keywords
- plate
- skirtboard
- frequency converter
- air inlet
- fresh air
- 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
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Abstract
The utility model discloses a kind of self-closed type dustproof transducer, comprise housing and skirtboard, sealing plate is provided with in skirtboard, skirtboard between described sealing plate and base plate arranges fresh air inlet, the top of described fresh air inlet is hinged with side seal orifice plate, top board is hinged with closedtop orifice plate and limits the closedtop orifice plate limiting plate that flip angle is less than 90 ° under the effect of aerofoil fan wind-force.The utility model self-closed type dustproof transducer, it is by arranging hole sealing plate at fresh air inlet and air-out oral area, during work, hole sealing plate is opened under atmospheric pressure and air stream thrust, and cooling air enters in frequency converter shell the cooling realized electric elements, can ensure frequency converter steady operation; When frequency converter quits work, hole sealing plate turn under gravity and is enclosed on fresh air inlet and air outlet, thus dust can be stoped to enter in frequency converter shell cause damage to electric elements, reduce frequency converter failure rate.
Description
Technical field
The utility model relates to a kind of electrical equipment, particularly a kind of frequency converter.
Background technology
Frequency converter is one of modern electrical machine speed regulating control and energy-conservation indispensable important devices, industrial circle application widely.Main circuit of converter is made up of rectification circuit, intermediate circuit, inverter circuit three part, and the power device caloric value in the course of the work in these circuit is comparatively large, and the housing of therefore frequency converter is generally all provided with ventilating heat dissipating hole.
Frequency converter is generally mounted near the working site of motor simultaneously, and the dust in working site easily enters in frequency converter shell with cooling air, causes frequency converter to damage.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of self-closed type dustproof transducer, enters in frequency converter to solve dust the problem causing frequency converter to damage.
The utility model self-closed type dustproof transducer, comprises housing, and the base plate of described housing is provided with air inlet, and the top board of described housing has been arranged on air outlet, is provided with aerofoil fan in described air outlet;
Described housing is connected with square tubulose skirtboard below base plate, is provided with transverse sealing plate in described skirtboard, and the skirtboard between described sealing plate and base plate arranges fresh air inlet, and the top of described fresh air inlet is hinged with side seal orifice plate; Under frequency converter quits work state, described side seal orifice plate is sealed on fresh air inlet under gravity;
Described top board is hinged with closedtop orifice plate, under frequency converter quits work state, described closedtop orifice plate is sealed on air outlet under gravity, and top board is also provided with the restriction closedtop orifice plate limiting plate that flip angle is less than 90 ° under the effect of aerofoil fan wind-force.
Further, dust-proof web plate is provided with between the inherent base plate of described skirtboard and seal cup.
Further, the side of described skirtboard is provided with jack, described dust-proof web plate is inserted in jack, described skirtboard inwall is provided with the bearing rib supporting dust-proof web plate.
The beneficial effects of the utility model:
The utility model self-closed type dustproof transducer, it is by arranging hole sealing plate at fresh air inlet and air-out oral area, during work, hole sealing plate is opened under atmospheric pressure and air stream thrust, and cooling air enters in frequency converter shell the cooling realized electric elements, can ensure frequency converter steady operation; When frequency converter quits work, hole sealing plate turn under gravity and is enclosed on fresh air inlet and air outlet, thus dust can be stoped to enter in frequency converter shell cause damage to electric elements, reduce frequency converter failure rate.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the utility model self-closed type dustproof transducer.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in the figure, the present embodiment self-closed type dustproof transducer, comprises housing 1, and the base plate 2 of described housing is provided with air inlet 3, the top board 4 of described housing has been arranged on air outlet 5, has been provided with aerofoil fan 6 in described air outlet;
Described housing is connected with square tubulose skirtboard 7 below base plate, is provided with transverse sealing plate 8 in described skirtboard, and the skirtboard between described sealing plate and base plate arranges fresh air inlet 9, and the top of described fresh air inlet is hinged with side seal orifice plate 10; Under frequency converter quits work state, described side seal orifice plate is sealed on fresh air inlet under gravity;
Described top board is hinged with closedtop orifice plate 11, under frequency converter quits work state, described closedtop orifice plate is sealed on air outlet under gravity, and top board is also provided with the restriction closedtop orifice plate limiting plate 12 that flip angle is less than 90 ° under the effect of aerofoil fan wind-force.
The present embodiment self-closed type dustproof transducer, it is by arranging hole sealing plate at fresh air inlet and air-out oral area, during work, hole sealing plate is opened under atmospheric pressure and air stream thrust, and cooling air enters in frequency converter shell the cooling realized electric elements, can ensure frequency converter steady operation; When frequency converter quits work, hole sealing plate turn under gravity and is enclosed on fresh air inlet and air outlet, thus dust can be stoped to enter in frequency converter shell cause damage to electric elements, reduce frequency converter failure rate.
As the improvement to the present embodiment, dust-proof web plate 13 is provided with between the inherent base plate of described skirtboard and seal cup, when frequency converter works, the air entering frequency converter can be filtered by dust-proof web plate, avoid the dust in air to enter housing and damage is caused to electric elements, the anti-dust performance of frequency converter can be improved further.
As the improvement to the present embodiment, the side of described skirtboard is provided with jack, described dust-proof web plate is inserted in jack, described skirtboard inwall is provided with the bearing rib 14 supporting dust-proof web plate, the easy accessibility of dust-proof web plate, is convenient to safeguard.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (3)
1. a self-closed type dustproof transducer, comprises housing, and the base plate of described housing is provided with air inlet, and the top board of described housing has been arranged on air outlet, is provided with aerofoil fan, it is characterized in that in described air outlet:
Described housing is connected with square tubulose skirtboard below base plate, is provided with transverse sealing plate in described skirtboard, and the skirtboard between described sealing plate and base plate arranges fresh air inlet, and the top of described fresh air inlet is hinged with side seal orifice plate; Under frequency converter quits work state, described side seal orifice plate is sealed on fresh air inlet under gravity;
Described top board is hinged with closedtop orifice plate, under frequency converter quits work state, described closedtop orifice plate is sealed on air outlet under gravity, and top board is also provided with the restriction closedtop orifice plate limiting plate that flip angle is less than 90 ° under the effect of aerofoil fan wind-force.
2. self-closed type dustproof transducer according to claim 1, is characterized in that: be provided with dust-proof web plate between the inherent base plate of described skirtboard and seal cup.
3. self-closed type dustproof transducer according to claim 2, is characterized in that: the side of described skirtboard is provided with jack, described dust-proof web plate is inserted in jack, described skirtboard inwall is provided with the bearing rib supporting dust-proof web plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420753387.3U CN204376682U (en) | 2014-12-04 | 2014-12-04 | Self-closed type dustproof transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420753387.3U CN204376682U (en) | 2014-12-04 | 2014-12-04 | Self-closed type dustproof transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204376682U true CN204376682U (en) | 2015-06-03 |
Family
ID=53332860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420753387.3U Expired - Fee Related CN204376682U (en) | 2014-12-04 | 2014-12-04 | Self-closed type dustproof transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204376682U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107979267A (en) * | 2017-12-29 | 2018-05-01 | 石狮市酷瑞电气有限责任公司 | A kind of frequency converter with dust and water protection dual-use function |
| CN110073586A (en) * | 2016-11-28 | 2019-07-30 | 东芝三菱电机产业系统株式会社 | Power-converting device |
-
2014
- 2014-12-04 CN CN201420753387.3U patent/CN204376682U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110073586A (en) * | 2016-11-28 | 2019-07-30 | 东芝三菱电机产业系统株式会社 | Power-converting device |
| CN107979267A (en) * | 2017-12-29 | 2018-05-01 | 石狮市酷瑞电气有限责任公司 | A kind of frequency converter with dust and water protection dual-use function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150603 Termination date: 20171204 |