CN201763688U - Air flow channel of dust collector air blower - Google Patents
Air flow channel of dust collector air blower Download PDFInfo
- Publication number
- CN201763688U CN201763688U CN201020528620XU CN201020528620U CN201763688U CN 201763688 U CN201763688 U CN 201763688U CN 201020528620X U CN201020528620X U CN 201020528620XU CN 201020528620 U CN201020528620 U CN 201020528620U CN 201763688 U CN201763688 U CN 201763688U
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- CN
- China
- Prior art keywords
- impeller
- wind
- fan housing
- cover plate
- cover
- 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 an air flow channel of dust collector air blower comprising an impeller, a wind-guiding disc, a wind cover and a cover plate. The impeller and the wind-guiding disc are disposed in the space enclosed by the wind cover and the cover plate. The high-speed rotation of the impeller can form a negative pressure difference, and the air absorbed in the space enclosed by the wind cover and the cover plate through the wind-guiding disc after passing through the wind inlet port of the wind cover, thereafter the air is extruded out of the space from the wind outlet port of the cover plate. An outward round flange used for guiding the wind flow in the impeller is disposed on the wind inlet port of the impeller. The part of the inner surface of the wind inlet port of the wind cover, which is relative to the round flange on the wind inlet port of the impeller, is provided with a circular groove. The round flange is embedded in the circular groove of the wind cover and keeps a certain distance with the inner wall of the groove, so that the impeller and the wind cover can not collide to damage each other during the rotation of the wind cover. The bottom of the circular groove of the wind cover is filled with plastic materials, which is tightly attached to the groove and used to seal the gap of the impeller flanges, thereby the circulating air flow between the impeller and the wind can be effectively prevented.
Description
Technical field
The utility model relates to a kind of vacuum cleaner blower fan, relates in particular to a kind of air-flow path of vacuum cleaner blower fan.
Background technique
Current domestic vacuum cleaners blower fan all adopts impeller 2 ', guide disc 3 ', fan housing 1 ', cover plate 4 ' structure as shown in Figure 1; Impeller forms behind the high speed rotating in the space that fan housing, cover plate surround and extraneous angrily pressure reduction during blower fan work, air is sucked by the impeller of high speed rotating via fan housing mouth 11 ' after be depressed into the space that fan housing, cover plate surround by guide disc 3 ', exhaust outlet 41 ' via cover plate 4 ' extrudes again, finishes the work.As shown in Figure 2, for successfully with in the outer gas stream intake impeller, impeller intake grill place is provided with the ring flange 21 ' that steering flow enters, the internal surface at fan housing mouth place and impeller intake grill flange corresponding section are provided with toroidal cavity 12 ', the flange of impeller is embedded in the groove of fan housing and keeps certain interval with the inwall of groove, is convenient to that impeller is unlikely when rotated to form grazing with fan housing and impaired; Owing to be barotropic state by the air-flow that impeller is depressed into the space that fan housing, cover plate surround through guide disc, and impeller intake grill place is negative pressure state, and the gap that exists between fan housing and the impeller intake grill flange, therefore form air-flow from just pressing to flowing of negative pressure, caused the formation of circulating air flow, and then influence the blower fan suction from extraneous air quantity, reduced the efficient of blower fan.
The model utility content
The utility model by insert the plasticity exotic material of certain depth at the bottom portion of groove of fan housing, forms the shutoff to circulating air flow between fan housing and the impeller in order to overcome above-mentioned defective of the prior art, thereby improves the operational efficiency of blower fan.
The utility model provides a kind of air-flow path of vacuum cleaner blower fan, comprise impeller, guide disc, fan housing and cover plate, impeller, guide disc are installed in the space that fan housing, cover plate surround, form behind the impeller high speed rotating and extraneous angrily pressure reduction, air sucked via the fan housing intake grill after guide disc is pressed into the space that fan housing and cover plate surround, again by the exhaust outlet extrusion of cover plate; Impeller intake grill place is provided with the distinguished and admirable outside circular flange that enters impeller of guiding, the circular flange corresponding section at the internal surface at fan housing intake grill place and impeller intake grill place is provided with toroidal cavity, circular flange is embedded in the toroidal cavity of fan housing and keeps certain interval with the inwall of groove, avoid in the rotary course of impeller, forming grazing between the fan housing and impeller and impaired, the plastic material with the groove secure bond is inserted in the toroidal cavity bottom of fan housing, is used for the toroidal cavity of fan housing and the gap between the impeller flange are carried out shutoff.
Preferably, plastic material is the high temperature resistant silicon clay.
Preferably, the circular flange of impeller is pressed in the high temperature resistant silicon clay when blower fan is installed, and makes silica cement generation plastic deformation and suitable with the impeller flange; Small the beating that impeller when rotation produces makes to pushing once more of silica cement and to form micro-gap between the circular flange of silica cement and impeller, is used for the circulating air flow between fan housing and the impeller is formed obstruct.
Compared with prior art, the utlity model has following beneficial effect:
By insert the plasticity high temperature resistant silicon clay material of certain depth at the bottom portion of groove of fan housing, form shutoff to circulating air flow between fan housing and the impeller, can intercept circulating air flow to greatest extent, thereby improve the operational efficiency of blower fan.
Description of drawings
Fig. 1 is the air-flow path generalized section of vacuum cleaner blower fan of the prior art;
Fig. 2 is the A place partial enlarged drawing of Fig. 1;
Fig. 3 is the three-dimensional exploded view of the utility model vacuum cleaner blower fan;
Fig. 4 is the generalized section of the utility model vacuum cleaner fan airflow passage;
Fig. 5 is the A place partial enlarged drawing of Fig. 4.
Mark thereon in conjunction with the accompanying drawings:
1 '-fan housing, 11 '-fan housing intake grill, 12 '-fan housing groove, 2 '-impeller, 21 '-impeller flange, 3 '-guide disc, 4 '-cover plate, 41 '-cover plate exhaust outlet;
The 1-fan housing, 11-fan housing intake grill, 12-fan housing groove, 2-impeller, 21-impeller flange, 3-guide disc, 4-cover plate, 41-cover plate exhaust outlet, 5-silica cement.
Embodiment
Below in conjunction with accompanying drawing, an embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subjected to the restriction of embodiment.
As Fig. 3,4, shown in 5, the air-flow path of vacuum cleaner blower fan of the present utility model, comprise fan housing 1, impeller 2, guide disc 3 and cover plate 4, impeller 2, guide disc 3 are installed in the space that fan housing 1 and cover plate 4 surround, and form behind the impeller high speed rotating and extraneous angrily pressure reduction, air sucked via fan housing intake grill 11 after guide disc is pressed into the space that fan housing and cover plate surround, again by 41 extrusion of cover plate exhaust outlet; Impeller intake grill place is provided with the distinguished and admirable outside circular flange 21 that enters impeller of guiding, flange 21 corresponding sections of the internal surface at fan housing intake grill 11 places and impeller intake grill are provided with the fan housing groove 12 of ring, the gap that the ring flange 21 of impeller is embedded in the fan housing groove 12 and keeps 1-2mm with the inwall of groove, it is unlikely when rotated impaired with fan housing formation grazing to be convenient to impeller, the bottom of fan housing groove is inserted and the anti-200 degree high temperature silicon clay 5 of the plasticity with certain depth of groove secure bond, be used for shutoff is carried out in the above-mentioned gap between fan housing groove and the impeller flange, reduce effectively because the blower fan circulating air flow that the negative pressure at positive air pressure in the fan housing and impeller intake grill place forms improves fan operation efficient.
Further as shown in Figure 5, impeller flange 21 is pressed into when blower fan is installed in the plasticity high temperature resistant silicon clay 5 of bonding in the fan housing groove 12, make silica cement 5 that plastic deformations take place and suitable with the impeller flange, small the beating that impeller when rotation produces makes the micro-gap of formation 0.1-0.5mm between silica cement and the impeller flange to pushing once more of silica cement, the use of silica cement can reduce the gap between fan housing groove 12 and the impeller flange 21 to greatest extent, can form efficiently the circulating air flow between fan housing and the impeller to intercept.
The utility model forms the shutoff to circulating air flow between fan housing and the impeller by insert the plasticity high temperature resistant silicon clay material of certain depth at the bottom portion of groove of fan housing, can intercept circulating air flow to greatest extent, thereby improves the operational efficiency of blower fan.
More than disclosed only be a specific embodiment of the present utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into protection domain of the present utility model.
Claims (3)
1. the air-flow path of a vacuum cleaner blower fan, comprise impeller, guide disc, fan housing and cover plate, impeller, guide disc are installed in the space that fan housing, cover plate surround, form behind the impeller high speed rotating and extraneous angrily pressure reduction, air sucked via the fan housing intake grill after guide disc is pressed into the space that fan housing and cover plate surround, again by the exhaust outlet extrusion of cover plate; Impeller intake grill place is provided with the distinguished and admirable outside circular flange that enters impeller of guiding, the internal surface at described fan housing intake grill place and the described circular flange corresponding section at impeller intake grill place are provided with toroidal cavity, described circular flange is embedded in the described toroidal cavity of fan housing and keeps certain clearance with the inwall of groove, avoid in the rotary course of impeller, forming grazing between the fan housing and impeller and impaired, it is characterized in that, the plastic material with the groove secure bond is inserted in the toroidal cavity bottom of described fan housing, is used for the toroidal cavity of fan housing and the described gap between the impeller flange are carried out shutoff.
2. the air-flow path of vacuum cleaner blower fan according to claim 1 is characterized in that, described plastic material is the high temperature resistant silicon clay.
3. the air-flow path of vacuum cleaner blower fan according to claim 2 is characterized in that, the described circular flange of impeller is pressed in the described high temperature resistant silicon clay when blower fan is installed, and makes silica cement generation plastic deformation and suitable with the impeller flange; Small the beating that impeller when rotation produces makes to pushing once more of described silica cement and to form micro-gap between the circular flange of silica cement and impeller, is used for the circulating air flow between fan housing and the impeller is formed obstruct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020528620XU CN201763688U (en) | 2010-09-13 | 2010-09-13 | Air flow channel of dust collector air blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020528620XU CN201763688U (en) | 2010-09-13 | 2010-09-13 | Air flow channel of dust collector air blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201763688U true CN201763688U (en) | 2011-03-16 |
Family
ID=43716295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020528620XU Expired - Fee Related CN201763688U (en) | 2010-09-13 | 2010-09-13 | Air flow channel of dust collector air blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201763688U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107040090A (en) * | 2017-04-28 | 2017-08-11 | 广东威灵电机制造有限公司 | Impeller assembly, integrated motor and household electrical appliance |
| CN109026792A (en) * | 2018-09-29 | 2018-12-18 | 王浦林 | Decompression type outer circulation blower fan structure |
-
2010
- 2010-09-13 CN CN201020528620XU patent/CN201763688U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107040090A (en) * | 2017-04-28 | 2017-08-11 | 广东威灵电机制造有限公司 | Impeller assembly, integrated motor and household electrical appliance |
| CN107040090B (en) * | 2017-04-28 | 2024-05-07 | 广东威灵电机制造有限公司 | Impeller assembly, integrated motor and household appliance |
| CN109026792A (en) * | 2018-09-29 | 2018-12-18 | 王浦林 | Decompression type outer circulation blower fan structure |
| CN109026792B (en) * | 2018-09-29 | 2024-02-27 | 王浦林 | External circulation fan structure of decompression type |
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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 |
Granted publication date: 20110316 Termination date: 20140913 |
|
| EXPY | Termination of patent right or utility model |