CN105298888A - Method for preventing reverse pollution from exhaust passage, exhaust fan low-speed controller and exhaust system capable of preventing reverse pollution - Google Patents
Method for preventing reverse pollution from exhaust passage, exhaust fan low-speed controller and exhaust system capable of preventing reverse pollution Download PDFInfo
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- CN105298888A CN105298888A CN201510163540.6A CN201510163540A CN105298888A CN 105298888 A CN105298888 A CN 105298888A CN 201510163540 A CN201510163540 A CN 201510163540A CN 105298888 A CN105298888 A CN 105298888A
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- ventilating fan
- switch
- speed controller
- low speed
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Abstract
The invention belongs to the technical field of indoor exhaust, and in particular, relates to a method for preventing reverse pollution from an exhaust passage, an exhaust fan low-speed controller and an exhaust system capable of preventing reverse pollution. The invention effectively solves the problem of reverse pollution of an indoor exhaust system from the exhaust passage; in particular, when the exhaust is not needed, the exhaust fan low-speed controller is used for controlling an exhaust fan to operate with low speed, so that air pressure of an exhaust port is slightly higher than outdoor air pressure, and outdoor air cannot enter indoors; and meanwhile, as crawlers and mice are afraid to crawl indoors because of fearing the agitation of blades, and the exhaust fan is located in a weak exhaust state of low-speed operation at ordinary times, the moisture and the moldy smell in bathrooms can be timely removed. The product cost is lower in cost compared with the prior art.
Description
Technical field
The invention belongs to and belong to indoor exhaust technical field, be specifically related to a kind of preventing from the method for air outlet flue inverse contamination and ventilating fan low speed controller and the vent systems that can prevent inverse contamination.
Background technique
Indoor exhaust fan is when quitting work, the outdoor particularly dirty gas with foreign flavor of public air outlet flue is easy to pour in down a chimney into indoor from air outlet flue, reptile or mouse are also easy to climb into indoor from ventilating fan, cause inverse contamination, existing technological scheme adopts to fill at the air intake of air outlet flue with manual locking device, although manual sealing effect is good, requires that ventilating fan is arranged on lower position, otherwise cannot operate, limit application; Or at the air outlet of air outlet flue dress with automatic closing appliance, but the defect of the sealing principle due to automatic closing appliance, still gap is there is during automatic closing appliance self-closed, the dirty gas with foreign flavor of outdoor particularly public air outlet flue still can pour in down a chimney into indoor from air outlet, reptile is also easy to climb into indoor from air outlet, cause inverse contamination, and when being vented, the windage of automatic closing appliance is large, noise is large.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, thering is provided a kind of prevents from the method for air outlet flue inverse contamination and ventilating fan low speed controller and the vent systems that can prevent inverse contamination, allow ventilating fan low-speed running when not needing exhaust, thus effectively stop inverse contamination.
The present invention is a kind of to be prevented from being achieved in that from the method for air outlet flue inverse contamination and to allow ventilating fan low-speed running when not needing exhaust.
Correspondingly, another aspect of the present invention is to provide following two kinds of ventilating fan low speed controller.
The first ventilating fan low speed controller comprises second gear K switch
2with electric capacity c, second gear K switch
2have gear m, gear n and input end t, two ends of wherein said electric capacity C respectively with described second gear K switch
2gear m be connected with gear n, gear m is the output terminal of ventilating fan low speed controller, for connecting the power input of the exhaust motor M of ventilating fan, described two gear switch k
2input end t be the input end of ventilating fan low speed controller, for connecting power supply, wherein, gear m is full gear, and gear n is bottom gear.
The second gear K switch of described ventilating fan low speed controller
2can be seesaw type two gear switch or push key type two gear switch or piano keys type two gear switch or rotary two gear switch or boom guy type two gear switch.
The second ventilating fan low speed controller comprises third gear switch K
3with electric capacity C, third gear switch K
3have gear m, gear n, gear q and input end t, two ends of wherein said electric capacity C respectively with described third gear switch K
3gear m be connected with gear n, gear m is the output terminal of ventilating fan low speed controller, for connecting the power input of the exhaust motor M of ventilating fan, described third gear switch K
3input end t be the input end of ventilating fan low speed controller, for connecting power supply, wherein, gear m is full gear, and gear n is bottom gear, and gear q is that power supply disconnects shelves.
The third gear switch K of described ventilating fan low speed controller
3can be seesaw type third gear switch or push key type third gear switch or piano keys type third gear switch or rotary third gear switch or boom guy type third gear switch.
Another aspect of the invention is to provide a kind of vent systems that can prevent inverse contamination, comprise ventilating fan, wherein ventilating fan comprises the housing, exhaust motor M and the flabellum that double as air outlet flue, characterized by further comprising the ventilating fan low speed controller between power input and power supply being connected to described exhaust motor M.
The described ventilating fan low speed controller of the vent systems of inverse contamination that can prevent is arranged in described ventilating fan.
For ease of operation, the described place that the ventilating fan low speed controller of the vent systems of inverse contamination can be prevented also can be arranged on convenient operation outside described ventilating fan, the power input of described exhaust motor M is connected with ventilating fan low speed controller with long lead.
For reducing the power consumpiton of exhaust motor M under the working state preventing inverse contamination of ventilating fan, described exhaust motor M is the d.c. motor with rectification circuit.
Good effect of the present invention is: because ventilating fan have employed the technology of low speed controller, make ventilating fan low-speed running when not needing exhaust, outdoor dirty gas with foreign flavor just cannot enter indoor, fear the stirring of flabellum due to reptile and mouse and indoor dare not be climbed into simultaneously, in addition, because ventilating fan is in the weak exhaust condition of low-speed running at ordinary times, moisture and the stale of such as toilet can be removed in time.Product cost is lower than prior art.
Accompanying drawing explanation
The circuit theory diagrams of the ventilating fan low speed controller that Fig. 1 and Fig. 2 is made up of rotary two gear switch and electric capacity.
The circuit theory diagrams that the ventilating fan low speed controller that Fig. 3 with Fig. 4 is made up of rotary two gear switch and electric capacity is connected with exhaust motor and power supply.
The circuit theory diagrams of the ventilating fan low speed controller that Fig. 5 to Fig. 7 is made up of rotary third gear switch and electric capacity.
The circuit theory diagrams that the ventilating fan low speed controller that Fig. 8 to Figure 10 is made up of rotary third gear switch and electric capacity is connected with exhaust motor and power supply.
In figure: K
2, rotary two gear switch (dotted line frame in); K
3, rotary third gear switch (dotted line frame in); C, electric capacity; M, exhaust motor.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
A kind of preventing in the present invention from the method for air outlet flue inverse contamination is: allow ventilating fan low-speed running when not needing exhaust.
Referring to figs. 1 through Fig. 4, first embodiment of the ventilating fan low speed controller in the present invention is: ventilating fan low speed controller is by rotary second gear K switch
2form with electric capacity C, second gear K switch
2have gear m, gear n and input end t, two ends of electric capacity C respectively with rotary second gear K switch
2gear m be connected with gear n, gear m is the output terminal of ventilating fan low speed controller, second gear K switch
2input end t be the input end of ventilating fan low speed controller, during use, ventilating fan low speed controller is arranged on the place of convenient operation, between the power input that ventilating fan low speed controller is connected to the exhaust motor M of ventilating fan and power supply, when needs are vented, ventilating fan low speed controller is threaded to gear m (as shown in figs. 1 and 3), exhaust motor M direct power and full-speed operation, when not needing exhaust, ventilating fan low speed controller is threaded to gear n (as shown in Figures 2 and 4), electric capacity C connects with exhaust motor M, exhaust motor M is low-speed running by electric capacity C step-down, prevent inverse contamination.
The second gear K switch of embodiment above
2can also be seesaw type two gear switch or push key type two gear switch or piano keys type two gear switch or boom guy type two gear switch.
With reference to Fig. 5 to Figure 10, second embodiment of the ventilating fan low speed controller in the present invention is: ventilating fan low speed controller is by rotary third gear switch K
3form with electric capacity C, third gear switch K
3have gear m, gear n, gear q and input end t, two ends of electric capacity C respectively with rotary third gear switch K
3gear m be connected with gear n, gear m is the output terminal of ventilating fan low speed controller, third gear switch K
3input end t be the input end of ventilating fan low speed controller, during use, ventilating fan low speed controller is arranged on the place of convenient operation, between the power input that ventilating fan low speed controller is connected to the exhaust motor M of ventilating fan and power supply, when needs are vented, ventilating fan low speed controller is threaded to gear m (as shown in figs. 5 and 8), exhaust motor M direct power and full-speed operation, when not needing exhaust, ventilating fan low speed controller is threaded to gear n (as shown in Figure 6 and 9), electric capacity C connects with exhaust motor M, exhaust motor M is low-speed running by electric capacity C step-down, prevent inverse contamination, when needs power cutoff, ventilating fan low speed controller is screwed into gear q (as shown in figures 7 and 10), the power supply of exhaust motor M is just turned off.
The third gear switch K of embodiment above
3can also be seesaw type third gear switch or push key type two gear switch or piano keys type third gear switch or boom guy type third gear switch.
First of the vent systems of inverse contamination the embodiment that can prevent in the present invention is: can prevent the vent systems of inverse contamination from being made up of ventilating fan and ventilating fan low speed controller, ventilating fan comprises the housing, exhaust motor M and the flabellum that double as air outlet flue, ventilating fan low speed controller is arranged in described ventilating fan, the power input of exhaust motor M is connected with ventilating fan low speed controller, during use, the input end of ventilating fan low speed controller is connected with power supply, and application circuit is as shown in Figure 3 and Figure 4 and shown in Fig. 8 to Figure 10.
Second of the vent systems of inverse contamination the embodiment that can prevent in the present invention is: can prevent the vent systems of inverse contamination from being made up of ventilating fan and ventilating fan low speed controller, ventilating fan comprises the housing, exhaust motor M and the flabellum that double as air outlet flue, ventilating fan low speed controller is arranged on the place of convenient operation outside ventilating fan, between the power input that ventilating fan low speed controller long lead is connected to exhaust motor M and power supply, application circuit is as shown in Figure 3 and Figure 4 and shown in Fig. 8 to Figure 10.
Exhaust motor M in the above-mentioned embodiment that can prevent the vent systems of inverse contamination can adopt the d.c. motor of band rectification circuit, can reduce the power consumpiton of exhaust motor under the working state preventing inverse contamination like this.
Prevent the object of inverse contamination from considering from reducing the power consumpiton of exhaust motor under the working state preventing inverse contamination as far as possible and can reaching again, the rotating speed being vented motor should between 90 revs/min to 300 revs/min, and the size of electric capacity is also as basis.
The various embodiments described above are when being in the working state preventing inverse contamination, due to exhaust motor low-speed running, make the air pressure of relief opening a little more than outdoor air pressure, outdoor gas just cannot enter indoor, fears the stirring of flabellum and dare not climb into indoor simultaneously due to reptile and mouse.
Claims (9)
1. preventing the method from air outlet flue inverse contamination, it is characterized in that allowing when not needing exhaust ventilating fan low-speed running.
2. a ventilating fan low speed controller, is characterized in that comprising second gear K switch
2with electric capacity C, second gear K switch
2have gear m, gear n and input end t, two ends of wherein said electric capacity C respectively with described second gear K switch
2gear m be connected with gear n, gear m is the output terminal of ventilating fan low speed controller, for connecting the power input of the exhaust motor M of ventilating fan, described second gear K switch
2input end t be the input end of ventilating fan low speed controller, for connecting power supply, wherein, gear m is full gear, and gear n is bottom gear.
3. ventilating fan low speed controller as claimed in claim 2, is characterized in that described second gear K switch
2seesaw type two gear switch or push key type two gear switch or piano keys type two gear switch or rotary two gear switch or boom guy type two gear switch.
4. a ventilating fan low speed controller, is characterized in that comprising third gear switch K
3with electric capacity C, third gear switch K
3have gear m, gear n, gear q and input end t, two ends of wherein said electric capacity C respectively with described third gear switch K
3gear m be connected with gear n, gear m is the output terminal of ventilating fan low speed controller, for connecting the power input of the exhaust motor M of ventilating fan, described third gear switch K
3input end t be the input end of ventilating fan low speed controller, for connecting power supply, wherein, gear m is full gear, and gear n is bottom gear, and gear q is that power supply disconnects shelves.
5. ventilating fan low speed controller as claimed in claim 4, is characterized in that described third gear switch K
3seesaw type third gear switch or push key type third gear switch or piano keys type third gear switch or rotary third gear switch or boom guy type third gear switch.
6. one kind can prevent the vent systems of inverse contamination, comprise ventilating fan, wherein ventilating fan comprises the housing, exhaust motor M and the flabellum that double as air outlet flue, characterized by further comprising the ventilating fan low speed controller between power input and power supply as described in claim 2 to 5 being connected to described exhaust motor M.
7. can prevent the vent systems of inverse contamination as claimed in claim 6, it is characterized in that described ventilating fan low speed controller is arranged in described ventilating fan.
8. can prevent the vent systems of inverse contamination as claimed in claim 6, it is characterized in that described ventilating fan low speed controller is arranged on the place of convenient operation outside described ventilating fan, the power input of described exhaust motor M is connected with described ventilating fan low speed controller with long lead.
9. can prevent the vent systems of inverse contamination as claimed in claim 6, it is characterized in that described exhaust motor M is the d.c. motor with rectification circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510163540.6A CN105298888A (en) | 2015-04-08 | 2015-04-08 | Method for preventing reverse pollution from exhaust passage, exhaust fan low-speed controller and exhaust system capable of preventing reverse pollution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510163540.6A CN105298888A (en) | 2015-04-08 | 2015-04-08 | Method for preventing reverse pollution from exhaust passage, exhaust fan low-speed controller and exhaust system capable of preventing reverse pollution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105298888A true CN105298888A (en) | 2016-02-03 |
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ID=55196540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510163540.6A Pending CN105298888A (en) | 2015-04-08 | 2015-04-08 | Method for preventing reverse pollution from exhaust passage, exhaust fan low-speed controller and exhaust system capable of preventing reverse pollution |
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|---|---|
| CN (1) | CN105298888A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09280621A (en) * | 1996-04-12 | 1997-10-31 | Toshiba Corp | Range hood fan |
| CN2553281Y (en) * | 2002-06-12 | 2003-05-28 | 王国辉 | Induction type fume-return-preventing device for kitchen ventilator |
| CN2572067Y (en) * | 2002-08-23 | 2003-09-10 | 程浩 | Fan speed regulator |
| US6860112B1 (en) * | 2003-09-03 | 2005-03-01 | Hitachi, Ltd. | Method of operating ventilator and air conditioner for vehicle |
| CN201795573U (en) * | 2009-08-12 | 2011-04-13 | 蒋绍中 | Natural ventilator for houses |
| CN202348715U (en) * | 2011-10-27 | 2012-07-25 | 伍思纪 | Wind exhauster |
-
2015
- 2015-04-08 CN CN201510163540.6A patent/CN105298888A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09280621A (en) * | 1996-04-12 | 1997-10-31 | Toshiba Corp | Range hood fan |
| CN2553281Y (en) * | 2002-06-12 | 2003-05-28 | 王国辉 | Induction type fume-return-preventing device for kitchen ventilator |
| CN2572067Y (en) * | 2002-08-23 | 2003-09-10 | 程浩 | Fan speed regulator |
| US6860112B1 (en) * | 2003-09-03 | 2005-03-01 | Hitachi, Ltd. | Method of operating ventilator and air conditioner for vehicle |
| CN201795573U (en) * | 2009-08-12 | 2011-04-13 | 蒋绍中 | Natural ventilator for houses |
| CN202348715U (en) * | 2011-10-27 | 2012-07-25 | 伍思纪 | Wind exhauster |
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Application publication date: 20160203 |