CN208090897U - Cabin ventilator and system - Google Patents
Cabin ventilator and system Download PDFInfo
- Publication number
- CN208090897U CN208090897U CN201820122833.9U CN201820122833U CN208090897U CN 208090897 U CN208090897 U CN 208090897U CN 201820122833 U CN201820122833 U CN 201820122833U CN 208090897 U CN208090897 U CN 208090897U
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- wireless
- ventilation
- gas
- control circuit
- executing agency
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Abstract
A kind of cabin ventilator provided by the utility model and system, including sensing circuit, control circuit and ventilation executing agency.Sensing circuit can acquire the concentration parameter that gas is set in room air, the corresponding signal of concentration parameter is sent to control circuit, control circuit identifies that the information that the signal is conveyed, control ventilation executing agency carry out suspend mode of taking a breath or enter to indoor air.The utility model can monitor the concentration of the setting gas in Laboratory air in real time, take a breath automatically, be conducive to air in cleaning laboratory, Protection room personnel's health.
Description
Technical field
The utility model is related to application of electronic technology field, more particularly, to a kind of cabin ventilator and system.
Background technology
At present in the laboratories such as laboratory, especially chemical, biological stain, thorn is easy tod produce during the experiment
The toxic gas of nose, the toxic gas of peppery eye and some colorless and odorless.These toxic gases can cause experimenter's physical and mental health
Serious damage.Since the toxic gas of colorless and odorless is difficult to be aware, caused by consequence it is frequently more serious.
Currently, reducing local environment harmful gas concentration has following two methods, but is all simple conventional method, effect
Fruit is undesirable.First method is exactly that artificial conscious opening door and window, formation natural convection air are protected during the experiment
Demonstrate,proving local environment harmful gas concentration will not be excessively high；Second method is exactly to install ventilation fan, equally artificial during the experiment
Conscious opening ventilation fan accelerates local environment and outside air convection velocity, dense to effectively reduce indoor harmful gas
Degree.All there is the control artificially realized at low cost, simple and practicable in both methods, especially the smell of people, which exists, adapts to ring
The phenomenon that border, be easy to cause the problem of ignorance updates room air, is damaged to the physical and mental health of experimenter.
Utility model content
The purpose of this utility model is to provide a kind of cabin ventilator and systems, to reduce indoor toxic gas to people
The damage of body health.
In a first aspect, the utility model embodiment provides a kind of cabin ventilator, including sequentially connected sensing electricity
Road, control circuit and ventilation executing agency；Sensing circuit is used to acquire the concentration parameter that gas is set in room air, by concentration
The corresponding signal of parameter is sent to control circuit；Ventilation executing agency is for taking a breath to room air；Control circuit is used for
The corresponding signal of concentration parameter is received, executing agency sends startup or sleep signal to ventilation.
With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect,
In, sensing circuit includes the gas concentration sensor and the first wireless microcontroller being connected with each other；Gas concentration sensor is used for
Acquire the concentration parameter that gas is set in room air；First wireless microcontroller is used to send the corresponding signal of concentration parameter
To control circuit.
The possible embodiment of with reference to first aspect the first, the utility model embodiment provide the of first aspect
Two kinds of possible embodiments, wherein control circuit includes sequentially connected second wireless microcontroller, photoelectrical coupler, drive
Dynamic circuit and relay.
Second of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Three kinds of possible embodiments, wherein the wireless communication protocol of the first wireless microcontroller and the second wireless microcontroller is mutual
Matching；Wireless communication protocol includes ZigBee, WI-FI or LORA.
Second of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Four kinds of possible embodiments, wherein the first wireless microcontroller and second wireless microcontroller include CC2530 chips.
The possible embodiment of with reference to first aspect the first, the utility model embodiment provide the of first aspect
Five kinds of possible embodiments, wherein sensing circuit includes multiple gas concentration sensors and the first wireless microcontroller；It is multiple
Gas concentration sensor respectively with state the first wireless microcontroller and connect.
Second of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Six kinds of possible embodiments, wherein relay includes the starting relay and directional relay being connect respectively with driving circuit；
Starting relay is used to control the unlatching or suspend mode of ventilation executing agency；Directional relay is used to control the work of ventilation executing agency
Operation mode.
The 6th kind of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Seven kinds of possible embodiments, wherein photoelectrical coupler includes the first optocoupler unit and the second optocoupler unit；Driving circuit includes
First driving unit and the second driving unit；First optocoupler unit and the second optocoupler unit connect with the second wireless microcontroller respectively
It connects；First optocoupler unit, the first driving unit and starting relay are sequentially connected；Second optocoupler unit, the second driving unit and
Directional relay is sequentially connected；Starting relay and directional relay are connect with ventilation executing agency respectively.
Any one in the first to seven kind of possible embodiment with reference to first aspect, the utility model embodiment carries
The 8th kind of possible embodiment of first aspect is supplied, wherein ventilation executing agency includes ventilation fan.
Second aspect, the utility model embodiment also provide a kind of indoor air exchange system, and system includes above-mentioned first aspect
Cabin ventilator, further include power supply.
A kind of cabin ventilator and system, sensing circuit that the utility model embodiment provides can acquire room air
The corresponding signal of concentration parameter is sent to control circuit by the concentration parameter of middle setting gas, and control circuit identifies that the signal passes
The information reached, control ventilation executing agency carry out suspend mode of taking a breath or enter to indoor air.The device can monitor in real time
The concentration of setting gas in Laboratory air, takes a breath, is conducive to air in cleaning laboratory, Protection people from room automatically
Member's health.
Other feature and advantage of the utility model will illustrate in the following description, alternatively, Partial Feature and advantage
Can deduce from specification or unambiguously determine, or by implement the utility model above-mentioned technology it can be learnt that.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, better embodiment cited below particularly,
And coordinate appended attached drawing, it is described in detail below.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of structural schematic diagram for cabin ventilator that the utility model embodiment provides；
Fig. 2 is the structural schematic diagram for another cabin ventilator that the utility model embodiment provides；
Fig. 3 is a kind of indoor air-changing method flow diagram that the utility model embodiment provides；
Fig. 4 is the local area network star topology structure chart for the cabin ventilator that the utility model embodiment provides；
Fig. 5 is a kind of structural schematic diagram for sensing circuit that the utility model embodiment provides.
Specific implementation mode
To keep the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model part is real
Example is applied, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, shall fall within the protection scope of the present invention.
Biochemical or chemical laboratory will produce toxic gas during the experiment, endanger the health of experimenter.Base
In this, a kind of cabin ventilator, the system and method for the utility model embodiment offer can be used in Laboratory air having
The detection and ventilation of poisonous gas content, it can also be used to which other need to detect the content of certain gases in air and need the field taken a breath
Institute.
For ease of understanding the present embodiment, a kind of indoor air-changing disclosed in the utility model embodiment is filled first
It sets and describes in detail.
A kind of structural schematic diagram of cabin ventilator shown in Figure 1, the device include sequentially connected sensing electricity
Road 100, control circuit 102 and ventilation executing agency 104；Sensing circuit 100, which is used to acquire, sets the dense of gas in room air
Spend parameter, the corresponding signal of concentration parameter be sent to control circuit 102, ventilation executing agency 104 be used for room air into
Row ventilation；Control circuit 12 sends startup or suspend mode letter for receiving the corresponding signal of concentration parameter, to ventilation executing agency 104
Number.
Above-mentioned sensing circuit may include multiple sensors part, the concentration for detecting various gases；For example, for detecting
The senser element etc. of the gases such as CO, H2S, NO, NO2, CL2, HCN, NH3, PH3；Above-mentioned control circuit can by microcontroller,
DSP (Digital Signal Processing, Digital Signal Processing), FPGA (Field Programmable Gate
Array, field programmable gate array) etc. processing chips realize；Above-mentioned ventilation executing agency can be ventilation fan, ventage
System etc..
A kind of cabin ventilator that the utility model embodiment provides, sensing circuit can be acquired in room air and be set
The corresponding signal of concentration parameter is sent to control circuit by the concentration parameter of gas；Control circuit identifies that the signal is conveyed
Information, control ventilation executing agency to indoor air carry out take a breath or enter suspend mode.The device can monitor reality in real time
The concentration for testing the setting gas in room air, takes a breath, is conducive to air in cleaning laboratory, Protection room personnel automatically
Health.
The structural schematic diagram of another cabin ventilator shown in Figure 2, device device basic shown in Fig. 1
Upper realization；In the device, sensing circuit includes the gas concentration sensor and the first wireless microcontroller 201 being connected with each other, should
Gas concentration sensor is used to acquire the concentration parameter that gas is set in room air；First wireless microcontroller 201 is used for will
The corresponding signal of concentration parameter is sent to control circuit；Above-mentioned control circuit includes sequentially connected second wireless microcontroller
202, photoelectrical coupler, driving circuit and relay.
Wherein, it is wirelessly communicated to make sensing circuit and control circuit realize, above-mentioned first wireless microcontroller and second
The wireless communication protocol of wireless microcontroller is mutually matched；The wireless communication protocol includes ZigBee (ZigBee protocol), WI-FI
(WIreless-FIdelity, Wireless Fidelity) or LORA (Long Range Wireless, long-distance radio communication).
In view of needing while monitoring a variety of pernicious gases, above-mentioned sensing circuit includes multiple gas concentration sensors and the
One wireless microcontroller；Multiple gas concentration sensors are connect with the first wireless microcontroller respectively.In Fig. 2, with three gases
Concentration sensor connect with the first wireless microcontroller and illustrates, and respectively gas concentration sensor 200a, gas concentration pass
Sensor 200b and gas concentration sensor 200c.
Further, above-mentioned relay includes the starting relay 207 and directional relay being connect respectively with driving circuit
208；The starting relay 207 is used to control the unlatching or suspend mode of ventilation executing agency；Directional relay 208 is taken a breath for controlling
The operating mode of executing agency.
For example, the operating mode of the ventilation executing agency may include exhaust mode and pattern of supplying gas；When the ventilation executes
When mechanism is ventilation fan, which can be to rotate in the forward direction and reversely rotate, to realize the purpose supplied gas or be vented.
Above-mentioned photoelectrical coupler includes the first optocoupler unit 203 and the second optocoupler unit 204；Driving circuit includes the first drive
Moving cell 205 and the second driving unit 206；First optocoupler unit 203 and the second optocoupler unit 204 respectively with the second wireless micro-control
Device 202 processed connects；First optocoupler unit 203, the first driving unit 205 and starting relay 207 are sequentially connected；Second optocoupler list
First 204, second driving unit 206 and directional relay 208 are sequentially connected；Starting relay 207 and directional relay 208 are distinguished
It is connect with ventilation fan 209.
Above-mentioned photoelectrical coupler can by system light current circuit and forceful electric power circuit keep apart, to ensure the circuit of system
Safety.
The above-mentioned cabin ventilator that the utility model embodiment provides, can monitor the setting in Laboratory air in real time
The concentration of gas, takes a breath automatically, is conducive to air in cleaning laboratory, Protection room personnel's health.
The utility model embodiment additionally provides a kind of indoor air exchange system, which includes that the utility model embodiment carries
The cabin ventilator of confession, while further including power supply.
Corresponding to above-mentioned cabin ventilator and system, a kind of indoor air-changing method flow diagram shown in Figure 3, the party
Method is applied to above-mentioned cabin ventilator, includes the following steps：
Step S300, sensing circuit acquire the concentration parameter that gas is set in room air in real time, judge the concentration ginseng
Whether number is greater than or equal to given threshold, if so, the sensing circuit sends Alarm signal to control circuit；
Specifically, gas sensor measures the concentration that gas is set in air, judges that the gas concentration is more than or equal to
When given threshold, " alarm signal " is sent to the first wireless microprocessor, the first wireless microprocessor should by wireless signal
Alarm signal is sent to control circuit；
Step S302, after control circuit receives Alarm signal, to ventilation, executing agency sends enabling signal；
Step S304, ventilation executing agency start, take a breath to room air；
Step S306, when the concentration parameter for setting gas in the collected room air of sensing circuit is less than given threshold
When, sensing circuit sends " normal " signal to control circuit；
Step S308, after control circuit receives " normal " signal, ventilation executing agency sends sleep signal, and ventilation executes
Mechanism work on setting time after, stop ventilation.
The indoor concentration of toxic gases height of air exchanging method energy automatic sensing detection provided in this embodiment；It is dense in toxic gas
When degree is more than threshold value, air exchange system can be automatically opened and be closed, the case where forgetting out, forgetting to close air exchange system is avoided, efficiently ensures
Human body is physically and mentally healthy.
In the utility model embodiment, first has at each critical positions in laboratory, be such as also easy to produce the reality of toxic gas
Platform etc. is tested, sensing circuit, including gas sensor and the first microcontroller are installed respectively；Then, suitable position installation is chosen to change
Gas executing agency, such as ventilation fan；Control circuit is finally installed, the second wireless microprocessor therein receives the first wireless sensor
Signal, be sequentially connected with photoelectricity coupling unit, driving circuit and electromagnetic relay, and control ventilation executing agency.
Specifically, above-mentioned gas sensor can measure the dense of a certain specific or certain specific toxic gases in real time
Degree, and sensitivity is adjustable；One the first wireless microprocessor can be connected with multiple gas sensors forms a sensing electricity
Road；The type and quantity of gas sensor can be according to practical adjustment；Multiple sensing circuits can be installed according to demand in laboratory.
The local area network star topology structure chart of cabin ventilator shown in Figure 4, the of sensing circuit everywhere
Second wireless microprocessor of one wireless microprocessor and control circuit forms star topology structure, forms a local area network,
The data automatic controlling ventilating system that can be transmitted according to each first wireless microprocessor.
Further, CC2530 chips can be used as the first wireless microcontroller and the second wireless microcontroller.CC2530
Chip is suitable for short-distance wireless communication (relative distance is no more than 50 meters in laboratory), has the characteristics that low-power consumption.As
The wireless communication protocol being mutually matched is used between first wireless microcontroller and the CC2530 chips of the second wireless microcontroller,
Such as Zigbee protocol.Zigbee be a kind of short distance, low rate radio network technique.It is mainly used near radio connection,
Adapt to the requirement of the low cost of wireless sensor, low energy, high fault tolerance etc..In addition to this, WI-FI, LORA etc. also can be used
It carries out wireless communication.
A kind of structural schematic diagram of sensing circuit shown in Figure 5, a CC2530 chip are passed with multiple gas concentrations
Sensor is connected, and is placed on the setting position in laboratory.In Fig. 5, connected with three gas concentration sensors and a CC2530 chip
It is connected in example to illustrate, respectively gas concentration sensor 50a, gas concentration sensor 50b and gas concentration sensor 50c.
Trident mark on the right side of CC2530 chips in Fig. 5, which represents the chip, to be communicated wirelessly.
The cabin ventilator specific work process is as follows：Gas sensor detects indoor certain or certain settings in real time
The concentration of gas；When gas concentration less than setting threshold value when, the first wireless microcontroller and control circuit in a dormant state,
Ventilation executing agency does not work；When the gas concentration value measured is equal to or higher than threshold value, the first wireless microcontroller is to second
Wireless microcontroller sends Alarm signal, and control ventilation executing agency opens after the second wireless microcontroller receives Alarm signal
Beginning work；After gas sensor detects that the concentration of setting gas is normal again, the first wireless microcontroller is wireless to second
Microcontroller sends " normal " signal, and enters dormant state；After second wireless microcontroller receives " normal " signal, control is changed
Gas stops operating after the fan work specific time and enters dormant state.
Further, the gas concentration threshold for determining whether the first wireless microcontroller sends out Alarm signal can be manually set
Value.Second wireless microcontroller can receive the signal that multiple first wireless microcontrollers are sent simultaneously.When any first wireless micro-
When controller sends Alarm signal, the second wireless microcontroller control ventilation fan works.When all first wireless
When microcontroller does not send Alarm signal, the second wireless microcontroller will stop after controlling the ventilation fan work specific time
Rotation, and enter dormant state.
Cabin ventilator provided in this embodiment can monitor the concentration levels of indoor toxic gas in real time, update Interior Space
Gas is effectively protected murder by poisoning of the experimenter from toxic gas.
The computer program product of cabin ventilator, system and method that the utility model embodiment is provided, packet
The computer readable storage medium for storing program code is included, the instruction that said program code includes can be used for executing previous methods
Method described in embodiment, specific implementation can be found in embodiment of the method, and details are not described herein.
In addition, in the description of the utility model embodiment unless specifically defined or limited otherwise, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, can also be electrical connection；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned term with concrete condition
Concrete meaning in the present invention.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer read/write memory medium.Based on this understanding, the technical solution of the utility model substantially or
Person says that the part of the part that contributes to existing technology or the technical solution can be expressed in the form of software products,
The computer software product is stored in a storage medium, including some instructions are used so that computer equipment (can be with
Personal computer, server or the network equipment etc.) execute each embodiment the method for the utility model whole or portion
Step by step.And storage medium above-mentioned includes the various media that can store program code.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
Finally it should be noted that：Embodiment described above, only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the scope of protection of the utility model is not limited thereto, although with reference to aforementioned
The utility model is described in detail in embodiment, it will be understood by those of ordinary skill in the art that：It is any to be familiar with this skill
The technical staff in art field within the technical scope disclosed by the utility model, still can be to the skill recorded in previous embodiment
Art scheme modify or can readily occur in variation or equivalent replacement of some of the technical features；And these modifications,
Variation is replaced, the spirit and model of the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
It encloses, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model is answered described is wanted with right
Subject to the protection domain asked.
Claims (10)
1. a kind of cabin ventilator, which is characterized in that including sequentially connected sensing circuit, control circuit and ventilation execution machine
Structure；
The sensing circuit is used to acquire the concentration parameter that gas is set in room air, by the corresponding signal of the concentration parameter
It is sent to the control circuit；The ventilation executing agency is for taking a breath to room air；
The control circuit sends to the ventilation executing agency for receiving the corresponding signal of the concentration parameter and starts or stop
Dormancy signal.
2. the apparatus according to claim 1, which is characterized in that the sensing circuit includes that the gas concentration being connected with each other passes
Sensor and the first wireless microcontroller；
The gas concentration sensor is used to acquire the concentration parameter that gas is set in room air；The first wireless microcontroller
Device is used to the corresponding signal of the concentration parameter being sent to the control circuit.
3. the apparatus of claim 2, which is characterized in that the control circuit includes sequentially connected second wireless micro-
Controller, photoelectrical coupler, driving circuit and relay.
4. device according to claim 3, which is characterized in that first wireless microcontroller and described second wireless micro-
The wireless communication protocol of controller is mutually matched；The wireless communication protocol includes ZigBee, WI-FI or LORA.
5. device according to claim 3, which is characterized in that first wireless microcontroller and described second wireless micro-
Controller includes CC2530 chips.
6. the apparatus of claim 2, which is characterized in that the sensing circuit include multiple gas concentration sensors and
First wireless microcontroller；
Multiple gas concentration sensors are connect with first wireless microcontroller respectively.
7. device according to claim 3, which is characterized in that the relay includes being connect respectively with the driving circuit
Starting relay and directional relay；
The starting relay is used to control the unlatching or suspend mode of the ventilation executing agency；The directional relay is for controlling
The operating mode of the ventilation executing agency；The operating mode includes exhaust mode and pattern of supplying gas.
8. device according to claim 7, which is characterized in that the photoelectrical coupler includes the first optocoupler unit and second
Optocoupler unit；The driving circuit includes the first driving unit and the second driving unit；
The first optocoupler unit and the second optocoupler unit are connect with second wireless microcontroller respectively；Described first
Optocoupler unit, first driving unit and the starting relay are sequentially connected；The second optocoupler unit, described second drive
Moving cell and the directional relay are sequentially connected；The starting relay and the directional relay are held with the ventilation respectively
Row mechanism connects.
9. according to claim 1 to 8 any one of them device, which is characterized in that the ventilation executing agency includes ventilation fan.
10. a kind of indoor air exchange system, which is characterized in that the system comprises changed in claim 1 to 9 any one of them room
Device of air further includes power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820122833.9U CN208090897U (en) | 2018-01-24 | 2018-01-24 | Cabin ventilator and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820122833.9U CN208090897U (en) | 2018-01-24 | 2018-01-24 | Cabin ventilator and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208090897U true CN208090897U (en) | 2018-11-13 |
Family
ID=64066172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820122833.9U Expired - Fee Related CN208090897U (en) | 2018-01-24 | 2018-01-24 | Cabin ventilator and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208090897U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278746A (en) * | 2018-01-24 | 2018-07-13 | 青海民族大学 | Cabin ventilator, system and method |
-
2018
- 2018-01-24 CN CN201820122833.9U patent/CN208090897U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278746A (en) * | 2018-01-24 | 2018-07-13 | 青海民族大学 | Cabin ventilator, system and method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |