CN107288913A - Exhaust fan - Google Patents
Exhaust fan Download PDFInfo
- Publication number
- CN107288913A CN107288913A CN201710614434.4A CN201710614434A CN107288913A CN 107288913 A CN107288913 A CN 107288913A CN 201710614434 A CN201710614434 A CN 201710614434A CN 107288913 A CN107288913 A CN 107288913A
- Authority
- CN
- China
- Prior art keywords
- exhaust fan
- control circuit
- normally opened
- sensor
- opened contact
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/12—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention discloses a kind of exhaust fan, it is related to small household appliances technical field；Including body and being located at intrinsic control circuit, the normally opened contact of air mass sensor and the normally opened contact of Smoke Sensor are connected in a phase of the power inleting terminal of the control circuit.The present invention can solve to forget out the problem of exhaust fan can not be operated during switch.
Description
Technical field
It is especially a kind of that there is the exhaust for detecting IAQ and smog the present invention relates to small household appliances technical field
Fan.
Background technology
Exhaust fan is conventional small household appliances, is used in many occasions, such as family, box in hotel etc., the bag in hotel
Railway carriage or compartment varies, either big box or small box, once inside had a meal more than people, along with somebody drinks, somebody
Smoking, the air muddiness that will result in box can't bear, and those is not drunk, and the people of non-smoking is difficult by if forgetting to beat
The switch of the exhaust fan in box is driven, exhaust fan would not be operated, people feels more to feel bad.
The content of the invention
It is an object of the invention to provide a kind of exhaust fan, it can solve to forget out that what exhaust fan during switch can not operate asks
Topic.
In order to solve the above problems, the technical solution adopted by the present invention is：This exhaust fan, including body and it is located at body
Interior control circuit, the normally opened of air mass sensor is connected in a phase of the power inleting terminal of the control circuit
Contact and the normally opened contact of Smoke Sensor.
In above-mentioned technical proposal, more specifically scheme can also be：The control circuit is also associated with hand switch.
Further：The Smoke Sensor is carbon monoxide gas sensor.
By adopting the above-described technical solution, the present invention is compared with prior art, have an advantageous effect in that：The present invention is set
There are air mass sensor and Smoke Sensor, room air is bad or Smoke Sensor when air mass sensor is detected
When detecting interior and having smog, controlled manually without people, the control circuit of exhaust fan will be connected, exhaust fan will be operated, will
Indoor bad air discharge is outdoor.
Brief description of the drawings
Fig. 1 is control principle schematic diagram of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples：
Exhaust fan shown in Fig. 1, including body and intrinsic control circuit is located at, in the phase of the power inleting terminal of control circuit
Air mass sensor SK normally opened contact and Smoke Sensor SS normally opened contact are connected on line, control circuit also connects
It is connected to hand switch SB.In the present embodiment, Smoke Sensor SS is carbon monoxide gas sensor.As air mass sensor SK
Detect room air it is bad when, air mass sensor SK normally opened contact closure switches on power, exhaust fan operating will be bad
Air discharge it is outdoor；When Smoke Sensor SS, which detects interior, smog, Smoke Sensor SS normally opened contact closure connects
Energization source, exhaust fan operating discharges smog outdoor.The present invention, which can also be operated with manual switches SB, operates exhaust fan.Air matter
Quantity sensor has high sensitivity to the various pollution sources such as alcohol, cigarette, ammonia, sulfide, and the product response time is fast, work
Stablize.
Claims (3)
1. a kind of exhaust fan, including body and it is located at intrinsic control circuit, it is characterised in that：In the electricity of the control circuit
Air mass sensor is connected in one phase of source end of incoming cables（SK）Normally opened contact and Smoke Sensor（SS）It is normally opened
Contact.
2. exhaust fan according to claim 1, it is characterised in that：The control circuit is also associated with hand switch（SB）.
3. exhaust fan according to claim 1 or 2, it is characterised in that：The Smoke Sensor（SS）For carbon monoxide gas
Dependent sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710614434.4A CN107288913A (en) | 2017-07-25 | 2017-07-25 | Exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710614434.4A CN107288913A (en) | 2017-07-25 | 2017-07-25 | Exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107288913A true CN107288913A (en) | 2017-10-24 |
Family
ID=60103652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710614434.4A Pending CN107288913A (en) | 2017-07-25 | 2017-07-25 | Exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107288913A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201488178U (en) * | 2009-07-24 | 2010-05-26 | 黎建吾 | Intelligent bathroom air draft device |
| CN204061258U (en) * | 2014-07-09 | 2014-12-31 | 昆明理工大学 | A kind of atmospheric pollution automatic air-exchanging circuit |
| US20170015426A1 (en) * | 2015-07-13 | 2017-01-19 | Hamilton Sundstrand Corporation | Raf bit for surge detection |
| US20170179709A1 (en) * | 2012-01-11 | 2017-06-22 | Emerson Climate Technologies, Inc. | System and Method for Compressor Motor Protection |
| CN106895020A (en) * | 2015-12-17 | 2017-06-27 | 周子龙 | A kind of Multifunctional exhaust fan |
-
2017
- 2017-07-25 CN CN201710614434.4A patent/CN107288913A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201488178U (en) * | 2009-07-24 | 2010-05-26 | 黎建吾 | Intelligent bathroom air draft device |
| US20170179709A1 (en) * | 2012-01-11 | 2017-06-22 | Emerson Climate Technologies, Inc. | System and Method for Compressor Motor Protection |
| CN204061258U (en) * | 2014-07-09 | 2014-12-31 | 昆明理工大学 | A kind of atmospheric pollution automatic air-exchanging circuit |
| US20170015426A1 (en) * | 2015-07-13 | 2017-01-19 | Hamilton Sundstrand Corporation | Raf bit for surge detection |
| CN106895020A (en) * | 2015-12-17 | 2017-06-27 | 周子龙 | A kind of Multifunctional exhaust fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171024 |