CN103104521A - Negative pressure draught fan - Google Patents
Negative pressure draught fan Download PDFInfo
- Publication number
- CN103104521A CN103104521A CN2012105363962A CN201210536396A CN103104521A CN 103104521 A CN103104521 A CN 103104521A CN 2012105363962 A CN2012105363962 A CN 2012105363962A CN 201210536396 A CN201210536396 A CN 201210536396A CN 103104521 A CN103104521 A CN 103104521A
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- negative
- motor
- pressure air
- air fan
- coupling
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Abstract
The invention provides a negative pressure draught fan comprising an outer shell, a motor and blades. The outer shell comprises an air inlet opening and an air outlet opening. The motor is placed inside the air inlet opening and the blades are placed inside the air outlet opening. A coupler is arranged between the motor and the blades. The coupler connects the motor and the blades integrally, so that torque of the motor is synchronously transmitted to the blades and a negative pressure ventilation effect is achieved.
Description
Technical field
The present invention relates to a kind of negative-pressure air fan, relate in particular to the integrated negative-pressure air fan of a kind of motor and fan page.
Background technique
Negative-pressure air fan is the principle of utilizing cross-ventilation, negative pressure ventilation, by the subtend of infield---gate or window nature inhale fresh air, simultaneously indoor sultry gas is forced rapidly to discharge outdoor, to reach a kind of machine of cooling and cooling-down effect.Because of it has cost of investment low (disposable input only is the sixth of air-conditioning), air quantity large (ventilation rate can reach 99%), noise is low, power consumption is little (operating cost only for air-conditioning 1/10th), operate steadily, the life-span is long, the efficient high, therefore now utilized by increasing industrial and mineral factory building, it is also the excellent selection that modernization workshop cooling is ventilated.Especially safe, environmental protection, energy-conservation negative-pressure air fan will become the main flow of aeration-cooling equipment Market.
See also shown in Figure 1ly, the negative machine 6 of existing negative pressure comprises shell 61, is located at motor 62 and fan page 63 in shell 61, and wherein the torque of motor 61 is usually coordinated by belt 66 and belt pulley 67 and transmits.Yet the shortcoming of belt transport is apparent: 1. belt is perishable, easy to wear; 2. the transmission time has been grown, and belt is easily loosening; 3. synchronism is inadequate.Above-mentioned three kinds of reasons all are easy to cause the decline of belt input efficiency, and then affect the working efficiency of negative-pressure air fan.Therefore, how to employ new technology to replace belt transport in negative-pressure air fan, thereby guarantee the stability transmitted, then become the task of top priority.
Summary of the invention
The object of the present invention is to provide a kind of have motor and the integrated negative-pressure air fan of fan page, to solve the unsettled problem of belt transport of existing negative-pressure air fan.
For achieving the above object, negative-pressure air fan of the present invention, comprise: shell, motor and flabellum, its housing comprises intake grill and exhaust outlet, described motor and flabellum lay respectively in the intake grill and exhaust outlet of shell, it is characterized in that: motor and fan page link together by a coupling one, thereby guarantee the stability of torque transfer.
As a further improvement on the present invention, described coupling is permanent coupling.
As a further improvement on the present invention, described permanent coupling is case butt coupling.
As a further improvement on the present invention, the material of described coupling is forged steel.
As a further improvement on the present invention, the material of described coupling is cast steel.
As a further improvement on the present invention, the material of described coupling is chromium steel.
Compared with prior art, the invention has the beneficial effects as follows: link together by a coupling one between the motor of negative-pressure air fan and fan page, thereby overcome the unsettled problem of the transmission that in the prior art, belt transport brings.
Description of drawings
Fig. 1 is the sectional view of existing negative-pressure air fan;
Fig. 2 is the sectional view of negative-pressure air fan of the present invention.
Embodiment
The present invention is described in detail below in conjunction with each mode of execution shown in the drawings; but should be noted that; these mode of executions are not limitation of the present invention; those of ordinary skills are according to these mode of executions institutes work energy, method or structural equivalent transformation or substitute, within all belonging to protection scope of the present invention.
Consult shown in Figure 2, Fig. 2 is the sectional view of negative-pressure air fan 10 of the present invention, the negative machine 10 of negative pressure of the present invention comprises: shell 1, be positioned at the motor 2 of shell 1 one ends, the coupling 4 that is positioned at the flabellum 3 of shell 1 the other end, motor 2 and fan page 3 are coupled together, during negative-pressure air fan 10 work, motor 2 starts, and the torque that it brings is passed to fan page 3 by coupling 4, thereby drive fan page 3 rotations, reach the effect of negative pressure ventilation.
The shell 1 of negative-pressure air fan 10 comprises that the square intake grill 11 for air intake reaches the circular exhaust outlet 12 that is used for air-out, and motor 2 and fan page 3 lay respectively in intake grill 11 and exhaust outlet 12.Wherein square intake grill 11 is fixed on wall or door and window.
When negative-pressure air fan 10 was started working, motor 2 started, and the rotation that it brings by input shaft 41, the output shaft 42 of coupling 4, passes to fan page 3 with successively at last, and fan page 3 is normally rotated, and reaches the effect of negative pressure ventilation.
Further, described coupling is permanent coupling.
Further, described permanent coupling is case butt coupling.
Further, the material of described coupling is forged steel.
Further, the material of described coupling is cast steel.
Further, the material of described coupling is chromium steel.
Compare with existing negative-pressure air fan, the advantage of negative-pressure air fan 10 of the present invention is: link together by coupling 4 one between the motor 2 of negative-pressure air fan 10 and fan page 3, thereby overcome the unsettled problem of transmission that the belt transport of prior art brings.The motor 2 of negative-pressure air fan 10 of the present invention also has with the integrated advantage of flabellum 3: the field installation time that has shortened negative-pressure air fan, reduced simultaneously the number of times that the decentraction of installing due to two belt pulleys causes motor to damage, motor-driven efficient increases simultaneously, has reduced maintenance time and cost.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and in the situation that do not deviate from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present invention is limited by claims rather than above-mentioned explanation, therefore is intended to include in the present invention dropping on the implication that is equal to important document of claim and all changes in scope.Any reference character in claim should be considered as limit related claim.
In addition, be to be understood that, although this specification is described according to mode of execution, but be not that each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, and the technological scheme in each embodiment also can through appropriate combination, form other mode of executions that it will be appreciated by those skilled in the art that.
Claims (7)
1. negative-pressure air fan comprises: shell, motor and flabellum, and its housing comprises intake grill and exhaust outlet, described motor and flabellum lay respectively in the intake grill and exhaust outlet of shell, it is characterized in that: motor and fan page one link together.
2. negative-pressure air fan according to claim 1, described motor and fan page link together by a coupling one.
3. negative-pressure air fan according to claim 2, described coupling is permanent coupling.
4. negative-pressure air fan according to claim 3, it is characterized in that: described permanent coupling is case butt coupling.
5. negative-pressure air fan according to claim 4, it is characterized in that: the material of described coupling is forged steel.
6. negative-pressure air fan according to claim 4, it is characterized in that: the material of described coupling is cast steel.
7. negative-pressure air fan according to claim 4, it is characterized in that: the material of described coupling is chromium steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105363962A CN103104521A (en) | 2012-12-13 | 2012-12-13 | Negative pressure draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105363962A CN103104521A (en) | 2012-12-13 | 2012-12-13 | Negative pressure draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103104521A true CN103104521A (en) | 2013-05-15 |
Family
ID=48312639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105363962A Pending CN103104521A (en) | 2012-12-13 | 2012-12-13 | Negative pressure draught fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103104521A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60142098A (en) * | 1983-12-28 | 1985-07-27 | Toshiba Corp | Motor fan |
| CN2051686U (en) * | 1989-08-15 | 1990-01-24 | 周心贤 | High efficiency, low pressure axial flow ventilator |
| CN201246314Y (en) * | 2008-08-22 | 2009-05-27 | 西安嘉能高速动力科技开发有限公司 | Direct connecting type high speed centrifugal air blower |
| CN201723466U (en) * | 2010-05-14 | 2011-01-26 | 广州慧全科技信息咨询有限公司 | Negative pressure fan with high air suction efficiency |
-
2012
- 2012-12-13 CN CN2012105363962A patent/CN103104521A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60142098A (en) * | 1983-12-28 | 1985-07-27 | Toshiba Corp | Motor fan |
| CN2051686U (en) * | 1989-08-15 | 1990-01-24 | 周心贤 | High efficiency, low pressure axial flow ventilator |
| CN201246314Y (en) * | 2008-08-22 | 2009-05-27 | 西安嘉能高速动力科技开发有限公司 | Direct connecting type high speed centrifugal air blower |
| CN201723466U (en) * | 2010-05-14 | 2011-01-26 | 广州慧全科技信息咨询有限公司 | Negative pressure fan with high air suction efficiency |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130515 |