CN218493849U - Roof fan - Google Patents
Roof fan Download PDFInfo
- Publication number
- CN218493849U CN218493849U CN202222151671.0U CN202222151671U CN218493849U CN 218493849 U CN218493849 U CN 218493849U CN 202222151671 U CN202222151671 U CN 202222151671U CN 218493849 U CN218493849 U CN 218493849U
- Authority
- CN
- China
- Prior art keywords
- fan
- air outlet
- sensor
- control module
- roof
- 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.)
- Active
Links
Images
Abstract
The utility model relates to a roof fan belongs to exhaust passage system technical field. The air conditioner comprises a main mounting body shell, an air inlet, an air outlet, a fan, a control module and a sensor; the air outlet comprises a main air outlet and an auxiliary air outlet, the main air outlet is arranged at one end of the fan air outlet, and the auxiliary air outlet is arranged on the upper portion of the main body shell. And the control module compares the set threshold value with the feedback value of the sensor to control the start and stop of the fan or give an abnormal alarm.
Description
Technical Field
The utility model relates to a roof fan belongs to exhaust passage system technical field.
Background
The air outlet of the public smoke exhaust channel of the residential kitchen is provided with a rainproof roof hood. Generally, an unpowered hood is adopted, the hood is weak in wind-pulling effect, congestion is easily formed during dense smoke exhaust, the smoke exhaust of residents is not smooth, even the oil smoke flows backward, and adverse effects are caused on physical health and the home environment.
The roof fan is adopted to replace an unpowered hood, so that the smoke discharge congestion phenomenon can be improved, because the kitchen use time of each household is not uniform, the peak period of dense oil smoke discharge has certain randomness, and the roof fan needs to be started as required; when the fan breaks down, the public flue has certain smoke exhaust capacity; the fan warning device has an automatic warning function, and can automatically give a warning when the fan breaks down to inform related personnel of providing services in time.
Therefore, realizing the functions becomes the object and direction of seeking breakthrough in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a roof fan possesses the function that the fan was opened automatically and is closed, fan trouble automatic alarm.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
a roof fan comprises a main body shell, an air inlet, an air outlet, a fan, a control module and a sensor;
the air outlet comprises a main air outlet and an auxiliary air outlet, wherein the main air outlet is arranged at the air outlet end of the fan, and the auxiliary air outlet is arranged at the upper part of the main body shell;
the collection point of the sensor is arranged below the air inlet.
And the controller realizes the control of the starting and stopping of the fan or the abnormal alarm according to the comparison of the set threshold value and the feedback value of the sensor.
Further, the fan is an axial flow fan or a centrifugal fan;
the fan and the main body shell can be of an integral structure or a split structure.
Further, the sensor is one or more of a pressure sensor and an oil smoke sensor.
Furthermore, the electric power of the roof fan is connected to the mains supply or the solar power supply.
The control flow of the roof fan is as follows:
the control module is provided with a starting threshold, a detection period and an operation period;
in the detection period, when the feedback value of the sensor is greater than or equal to the starting threshold value, the control module drives the fan to start to enter the running period, and the fan automatically stops when the running period is finished;
the control module is provided with an alarm signal output unit, and the output of the alarm signal unit can be triggered by an alarm threshold value set by the control module or an independent fan stop alarm module;
when the alarm threshold is adopted for triggering: when the fan is in the operation period and the feedback value of the sensor is greater than or equal to the alarm threshold value, the abnormality is judged to occur, and the alarm signal output unit sends out an alarm signal.
When the fan halt alarm module is adopted for triggering: when the fan is in the operation period, the fan stop alarm module monitors the stop of the fan, if the fan is judged to be abnormal, the alarm signal output unit sends out an alarm signal.
The output mode of the alarm signal is one or more of sound alarm, light alarm, short message alarm, mobile phone APP alarm and cloud platform alarm.
The ID of the control module may be named by one or more combinations of doorplate address information, latitude and longitude information, and landmark orientation information.
The control module modifies the operation curve of the fan by adjusting parameters such as the detection period, the operation period, the starting threshold value and the like, so that the fan is prevented from being started and stopped frequently, and the system works smoothly.
The utility model discloses following beneficial effect has: the scheme has the functions of automatically opening and closing the roof fan as required and automatically alarming when the fan fails; especially, when the household range hood is low in simultaneous operation rate and is not enough to trigger the roof fan to start or break down, the oil smoke is naturally discharged from the auxiliary air outlet.
Drawings
Fig. 1 is a schematic structural view of a roof fan in embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a roof fan in embodiment 2 of the present invention.
In the figure: 1. a main body housing; 2. an air inlet; 3-1, a main air outlet; 3-2, an auxiliary air outlet; 4. a fan; 5. control module, 6, sensor.
Detailed Description
The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all of them. Based on the embodiments in the embodiment, those skilled in the art can obtain other embodiments without making creative efforts, which all belong to the protection scope of the present invention.
Example 1:
referring to fig. 1, a roof fan includes a main body housing 1, an air inlet 2, an air outlet, a fan 4, a control module 5, a sensor 6, and the like.
The main body shell 1 is cylindrical, the fan 4 is an axial flow fan, and the two are of an integral structure; the air outlet is arranged at the upper part of the main body shell 1 and is of a cap-shaped structure; the air outlet is a main air outlet 3-1 and an auxiliary air outlet 3-2; the control module 5 is respectively connected with the fan 4 and the sensor 6; the sensor 6 adopts a wind pressure transmitter, and a collection point of the sensor 6 is arranged below the air inlet 2; the power access mode is commercial power.
Preferably, the alarm signal output unit adopts an alarm threshold triggering mode, and the alarm signal is sent in a remote cloud platform mode.
For ease of understanding, the following table illustrates the operating conditions.
Table 1:
further, in the present embodiment, according to the working conditions described in table 1, the detection period T1=10 is set, that is, 1 detection time per 10 seconds; setting an operation period T2=120, namely, 120 seconds of operation each time; setting a starting threshold TH1=200, namely, triggering starting when a feedback value reaches 200 Pa; and setting an alarm threshold TH2=400, namely, triggering an alarm when the feedback value reaches 400 Pa.
Further, when the pressure value of the acquisition point of the sensor 6 is greater than or equal to 200Pa, the control module 5 drives the fan 4 to start, and the fan 4 enters the operation period and operates for 2 minutes at regular time; and in the operation period, when the pressure value is detected to be more than or equal to 200Pa again, triggering a new operation period and covering the previous operation period, and timing the fan 4 again to operate for 2 minutes.
Further, when the simultaneous on-duty ratio is not high, the pressure value of the collection point is lower than 200Pa even reaching negative pressure when the fan 4 is in the running state, and the condition of triggering the start threshold value is not met. When the operation period is over, the fan 4 automatically stops, if the extractor hood of the household kitchen is still in the starting state at the moment, along with the stop of the fan 4, the pressure value of the collection point can gradually rise back in the slow deceleration process of the fan blade, and when the pressure value rises back to 200Pa, the trigger condition is reached, the fan 4 is started again, and the next cycle is started.
Further, when the operation cycle is finished and the fan 4 is automatically stopped, if the extractor hoods in the kitchens of the residents are all in a shutdown state or are in a low startup rate at the same time, the pressure value of the collection point cannot reach 200Pa, and the fan 4 is kept in a shutdown state because the triggering condition cannot be reached.
Further, when fan 4 was in the operating cycle, when the pressure value of the acquisition point of sensor 6 was more than or equal to 400Pa, then judged that unusual appeared, alarm signal output unit valve goes out alarm signal, and alarm signal adopts the online long-range sending of cloud platform, and at this moment, cloud platform or staff's cell-phone APP end all can receive the alarm information that ID is "01 family type of a certain unit in a certain district of a certain way in a certain city" to relevant personnel in time accurately arrive at the scene and investigate the trouble.
Particularly, when the fan 4 is in a stop state or fails, the oil smoke is naturally discharged from the sparse blades of the axial flow fan through the auxiliary air outlet 3-2.
Example 2:
referring to fig. 2, the roof fan includes a main body housing 1, an air inlet 2, an air outlet, a fan 4, a control module 5, a sensor 6, and the like. Wherein the main body shell 1 is square, the fan 4 is a centrifugal fan, and the two are in a split structure; the main air outlet 3-1 is arranged on one side of the air outlet of the centrifugal fan and is subjected to rainproof treatment; the auxiliary air outlet 3-2 is arranged at the upper part of the main body shell 1 and is of a movable louver structure; the sensor 6 is a wind pressure transmitter, and the collection point is arranged below the air inlet 2; the power access mode is commercial power.
As shown in fig. 2, when the fan 4 operates, the movable louver structure of the auxiliary air outlet 3-2 is synchronously closed, the extracted oil smoke is actively discharged from the main air outlet 3-1, and when the fan 4 stops, the louver device of the auxiliary air outlet 3-2 is reset to be opened.
Particularly, when the household range hood is low in simultaneous starting rate, the pressure value is not enough to trigger the starting threshold TH1, or the household range hood fails, smoke is naturally discharged through the auxiliary air outlet 3-2.
The rest is the same as example 1.
Example 3:
a roof fan comprises a main body shell 1, an air inlet 2, an air outlet, a fan 4, a control module 5, a sensor 6 and the like. The main body shell 1 is cylindrical, the fan 4 is an axial flow fan, the two are integrated, and the air outlet is arranged at the upper part of the main body shell 1 and is of a cap-shaped structure; the air outlet is a main air outlet 3-1 and an auxiliary air outlet 3-2; the sensor 6 is an oil smoke sensor, and a sampling point is arranged below the air inlet 2; the alarm signal output unit adopts a fan stop alarm module triggering mode, and the alarm signal adopts an acousto-optic alarm + short message alarm mode; the power access mode is commercial power.
Further, in the present embodiment, according to the working conditions described in table 1, the detection period T1=5 is set, that is, the detection is performed every 5 seconds for 1 time; setting an operation period T2=120, namely, 120 seconds of operation each time; setting the starting threshold TH1=3, namely the feedback value reaches 3mg/m 3 Triggering and starting.
Further, when the smoke concentration of the collection point of the sensor 6 is more than or equal to 3mg/m 3 When the running time is up, the control module 5 drives the fan 4 to start, and the fan 4 enters the running period to run for 2 minutes at regular time; in the operation period, the smoke concentration is detected to be more than or equal to 3mg/m again 3 And triggering a new operation period and covering the previous operation period, and timing and operating the fan 4 for 2 minutes again.
Further, when the fan 4 is stopped after the operation period T2 is finished, and the fan blade is slowly decelerated, if the flue gas concentration at the collection point rises again at this time, the condition of triggering the start threshold is reached, the fan 4 is continuously started, otherwise, the fan 4 is kept in a stop state.
Further, when the fan 4 is in the operation period T2, the fan stop alarm module monitors that the fan is stopped, and then determines that the system is abnormal, the alarm signal output unit outputs an alarm signal, and at this time, the sound and light alarm device operates, and related personnel receive an alarm short message showing that "a certain unit of a certain cell of a certain path of a certain district of a certain city is 01 house type".
In all the above-mentioned schemes, only be the specific implementation mode of the preferred embodiment of the present invention, however, the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical scheme of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (4)
1. A roof fan comprises a main body shell (1), an air inlet (2), an air outlet, a fan (4), a control module (5) and a sensor (6);
the method is characterized in that: the air outlet comprises a main air outlet (3-1) and an auxiliary air outlet (3-2), wherein the main air outlet (3-1) is arranged at the air outlet end of the fan (4), the auxiliary air outlet (3-2) is arranged at the upper part of the main body shell (1), the input end of the control module (5) is connected with the sensor (6), the output end of the control module is connected with the fan (4), and the collection point of the sensor (6) is arranged below the air inlet (2).
2. The roof fan of claim 1, wherein: the fan (4) is an axial flow fan or a centrifugal fan;
the fan (4) and the main body shell (1) are of an integral structure or a split structure.
3. The roof fan of claim 1, wherein: the sensor (6) is one or more of a pressure sensor and an oil smoke sensor.
4. The roof fan of claim 1, wherein: the electric power of the roof fan is connected to the commercial power or the solar power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222151671.0U CN218493849U (en) | 2022-08-16 | 2022-08-16 | Roof fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222151671.0U CN218493849U (en) | 2022-08-16 | 2022-08-16 | Roof fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218493849U true CN218493849U (en) | 2023-02-17 |
Family
ID=85186890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222151671.0U Active CN218493849U (en) | 2022-08-16 | 2022-08-16 | Roof fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218493849U (en) |
-
2022
- 2022-08-16 CN CN202222151671.0U patent/CN218493849U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204256566U (en) | Mist extractor control system concentrated by apartment with hotel-styled services | |
| CN203588047U (en) | Indoor environment intelligent control system | |
| CN202472390U (en) | Substation environment centralized control system | |
| CN206546008U (en) | A kind of intelligent combined control system of indoor air environment | |
| CN105953358B (en) | Air-conditioning safety protecting method, device and air-conditioning | |
| CN113266857A (en) | Fresh air system capable of being intelligently linked with household range hood | |
| CN109243148A (en) | Indoor fuel gas leakage alarms and evacuating system and its alarm and leak point positioning method | |
| CN103247810A (en) | Miniature hydrogen cell stack control system | |
| CN202887410U (en) | Distributed comprehensive monitoring alarm system | |
| CN210654752U (en) | Environment-friendly fireproof garbage house | |
| CN218493849U (en) | Roof fan | |
| CN109612000B (en) | Control method of fresh air system with fire-fighting function | |
| CN115289045A (en) | Roof fan and control method thereof | |
| CN211182374U (en) | Hydrogen fuel cell tail gas discharge system | |
| CN204254823U (en) | A kind of intelligent ventilating system | |
| KR102349706B1 (en) | A Fire emergency response type solar connection panel with modules to remove dehumidification and dust, and solar power generation roof system including the same | |
| CN206221785U (en) | A kind of high leakproofness fire resisting damper | |
| CN216114254U (en) | Central purification system | |
| CN202788918U (en) | Coal mine extraction system gas intelligent control device | |
| CN211400198U (en) | Reversing fan device of high-pressure chamber | |
| CN202119121U (en) | Toxic gas detecting, alarming and controlling system of gas water heater | |
| CN205504492U (en) | Intelligence domestic gas leak detection device | |
| CN210273194U (en) | Intelligent full-automatic outdoor moisture-removing device for transformer substation | |
| CN210273191U (en) | Solar outdoor moisture-removing box for GIS secondary loop of transformer substation | |
| CN210246047U (en) | Intelligent outdoor moisture dispeller for secondary cabinet of transformer substation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |