CN104316648B - Airflow sensing apparatus - Google Patents
Airflow sensing apparatus Download PDFInfo
- Publication number
- CN104316648B CN104316648B CN201410553629.9A CN201410553629A CN104316648B CN 104316648 B CN104316648 B CN 104316648B CN 201410553629 A CN201410553629 A CN 201410553629A CN 104316648 B CN104316648 B CN 104316648B
- Authority
- CN
- China
- Prior art keywords
- opening
- conducting element
- state
- switched
- housing
- 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.)
- Expired - Fee Related
Links
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention provides a kind of airflow sensing apparatus, comprise: housing, filter screen, sensor and conducting element.This housing has accommodation space, the first opening, the second opening and the 3rd opening; This filter screen is arranged in this housing; This sensor is arranged in this accommodation space; This conducting element is arranged in this housing, and this conducting element can switch between the first state and the second state.Wherein, when this conducting element is switched to this first state, this first opening, this accommodation space and this second opening form first passage, make the first air-flow outside this housing flow through this sensor via this first passage; When this conducting element is switched to this second state, this first opening, this accommodation space and the 3rd opening form second channel, make to flow through this sensor by the second air-flow of this filter screen via this second channel.
Description
Technical field
The present invention about a kind of airflow sensing apparatus, espespecially a kind of utilize single sensor sense through before strainer filtering with filter after the airflow sensing apparatus of air-flow.
Background technology
Along with the progress and development of science and technology, air-polluting problem is also more and more serious.Therefore, many families all can arrange the quiet machine of air, improve the air quality in family.Generally speaking, the quiet machine of air by the air-flow suction casing of outside, to make air-flow by filter screen, makes filter screen can by the powder filtering filtration in air-flow by fan.The quiet machine of air, after running a period of time, filter screen just can be covered with dust, and cannot effective sanitizing air.Now, just need to change filter screen, to maintain the air quality after filtration.For the quiet machine of known air, user can only, in modes such as range estimation or the service times of record filter screen, determine whether changing filter screen.But, if user's misjudgment or want to save filter screen cost and change filter screen too late because lacking experience, the air quality after filtering just can be made to have a greatly reduced quality.
Summary of the invention
An object of the present invention be to provide a kind of utilize single sensor sense through before strainer filtering with filter after the airflow sensing apparatus of air-flow, to solve the problem.
The invention provides a kind of airflow sensing apparatus, comprise: housing, filter screen, sensor and conducting element.This housing has accommodation space, the first opening, the second opening and the 3rd opening; This filter screen is arranged in this housing; This sensor is arranged in this accommodation space; This conducting element is arranged in this housing, and this conducting element can switch between the first state and the second state.Wherein, when this conducting element is switched to this first state, this first opening, this accommodation space and this second opening form first passage, make the first air-flow outside this housing flow through this sensor via this first passage; When this conducting element is switched to this second state, this first opening, this accommodation space and the 3rd opening form second channel, make to flow through this sensor by the second air-flow of this filter screen via this second channel.
Preferably, this conducting element is plate and is arranged at rotationally in this housing, and this conducting element is pivotally switched between this first state and this second state; When this conducting element is switched to this first state, this conducting element covers the 3rd opening; When this conducting element is switched to this second state, this conducting element covers this second opening.
Preferably, this conducting element is cylinder and is arranged at rotationally in this housing, and this conducting element is pivotally switched between this first state and this second state, and this conducting element has guide groove; When this conducting element is switched to this first state, this conducting element covers the 3rd opening, and this first opening, this accommodation space, this guide groove and this second opening form this first passage; When this conducting element is switched to this second state, this conducting element covers this second opening, and this first opening, this accommodation space, this guide groove and the 3rd opening form this second channel.
Preferably, this conducting element comprises the first hollow cylinder and the second hollow cylinder, this first hollow cylinder to be fixed in this housing and to have the 4th opening, 4th opening and the 3rd open communication, this second hollow cylinder is arranged in this housing rotationally, this second hollow cylinder is pivotally switched between this first state and this second state, and this second hollow cylinder has the 5th opening; When this second hollow cylinder is switched to this first state, 3rd opening, the 4th opening, the 5th opening and this second opening conducting, make this first opening, this accommodation space, the 3rd opening, the 4th opening, the 5th opening and this second opening form this first passage; When this second hollow cylinder is switched to this second state, this second hollow cylinder covers this second opening, and the 3rd opening, the 4th opening and the 5th opening conducting, make this first opening, this accommodation space, the 3rd opening, the 4th opening and the 5th opening form this second channel.
Preferably, this conducting element is plate and is arranged at movably in this housing, and this conducting element is switched in a movable manner between this first state and this second state; 3rd opening is greater than this second opening; When this conducting element is switched to this first state, this conducting element covers the 3rd opening; When this conducting element is switched to this second state, this conducting element opens the 3rd opening.
Preferably, this conducting element comprises the first plate and the second plate, this first plate to be fixed in this housing and to have the 4th opening, 4th opening and the 3rd open communication, this second plate is arranged in this housing rotationally, this second plate is pivotally switched between this first state and this second state, and this second plate has the 5th opening; 3rd opening, the 4th opening and the 5th opening are all greater than this second opening; When this second plate is switched to this first state, this second plate covers the 4th opening and the 3rd opening; When this second plate is switched to this second state, the 3rd opening, the 4th opening and the 5th opening conducting, make this first opening, this accommodation space, the 3rd opening, the 4th opening and the 5th opening form this second channel.
In sum, airflow sensing apparatus provided by the invention, arranges the conducting element that can carry out switching between the first state and the second state in the housing of airflow sensing apparatus.When conducting element is switched to the first state, namely the first air-flow before the filtration outside housing can flow through sensor, makes sensor can sense the air quality of the first air-flow before filtration, using the foundation as adjustment rotation speed of the fan.On the other hand, when conducting element is switched to the second state, namely can flow through sensor by the second air-flow after the filtration of filter screen, make sensor can sense the air quality of the second air-flow after filtration, using as the foundation whether changing filter screen.Therefore, the present invention by the design of conducting element and gas channel, utilize single sensor sense through before strainer filtering with filter after air-flow, not only simple to operate, and too much setup cost can not be increased.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of airflow sensing apparatus according to an embodiment of the invention, and wherein conducting element is switched to the first state.
Fig. 2 is the schematic diagram that the conducting element in Fig. 1 is switched to the second state.
Fig. 3 is the schematic diagram of airflow sensing apparatus according to another embodiment of the present invention, and wherein conducting element is switched to the first state.
Fig. 4 is the schematic diagram that the conducting element in Fig. 3 is switched to the second state.
Fig. 5 is the schematic diagram of airflow sensing apparatus according to another embodiment of the present invention, and wherein the second hollow cylinder of conducting element is switched to the first state.
Fig. 6 is the schematic diagram that the second hollow cylinder of conducting element in Fig. 5 is switched to the second state.
Fig. 7 is the schematic diagram of airflow sensing apparatus according to another embodiment of the present invention, and wherein conducting element is switched to the first state.
Fig. 8 is the schematic diagram that the conducting element in Fig. 7 is switched to the second state.
Fig. 9 is the schematic diagram of conducting element according to another embodiment of the present invention, and wherein the second plate of conducting element is switched to the first state.
Figure 10 is the schematic diagram that the second plate of conducting element in Fig. 9 is switched to the second state.
Embodiment
For making there is further understanding to object of the present invention, structure, feature and function thereof, embodiment is hereby coordinated to be described in detail as follows.
Refer to Fig. 1 and Fig. 2, Fig. 1 is the schematic diagram of airflow sensing apparatus 1 according to an embodiment of the invention, and wherein conducting element 16 is switched to the first state; Fig. 2 is the schematic diagram that conducting element 16 in Fig. 1 is switched to the second state.As shown in Figures 1 and 2, airflow sensing apparatus 1 comprises housing 10, filter screen 12, sensor 14, conducting element 16 and fan 18, and wherein filter screen 12, sensor 14, conducting element 16 are all arranged in housing 10 with fan 18.Airflow sensing apparatus 1 can be air quiet machine, dehumidifier or other electronic installation that can filter air.Housing 10 has accommodation space 100, first opening 102, second opening 104 and the 3rd opening 106, and wherein sensor 14 is arranged in accommodation space 100.
In this embodiment, conducting element 16 is plate and is arranged in housing 10 rotationally, and conducting element 16 is pivotally switched between the second state shown in the first state shown in Fig. 1 and Fig. 2.In practical application, conducting element 16 can be articulated in housing 10 by pivot (not shown).
As shown in Figure 1, when conducting element 16 is switched to the first state, conducting element 16 covers the 3rd opening 106 and opens the second opening 104, makes the first opening 102, accommodation space 100 and the second opening 104 form first passage P1.Now, the first air-flow A1 outside housing 10 can flow through sensor 14 via first passage P1.By this, sensor 14 can sense the air quality of the first air-flow A1 before filtration, using the foundation as adjustment fan 18 rotating speed.As shown in Figure 2, when conducting element 16 is switched to the second state, conducting element 16 covers the second opening 104 and opens the 3rd opening 106, makes the first opening 102, accommodation space 100 and the 3rd opening 106 form second channel P2.Now, sensor 14 can be flowed through via second channel P2 by fan 18 suction casing 10 by the second air-flow A2 of filter screen 12.By this, sensor 14 can sense the air quality of the second air-flow A2 after filter screen 12 filters, using as the foundation whether changing filter screen 12.
In other words, when user makes airflow sensing apparatus 1 normal operation carry out filtered air, conducting element 16 can be switched to the first state shown in Fig. 1 by airflow sensing apparatus 1, and when user for judge filter screen 12 whether this replacing time, conducting element 16 can be switched to the second state shown in Fig. 2 by airflow sensing apparatus 1.Therefore, the present invention, by the design of conducting element 16 with gas channel P1, P2, utilizes single sensor 14 to sense the air-flow A2 after the air-flow A1 before filter screen 12 filters with filtration, not only simple to operate, and can not increase too much setup cost.It should be noted that, the switching of conducting element 16 can be arranged in pairs or groups mechanism design and automatically switching via circuit, or via mechanism design by user's manual switchover, depending on practical application.
Refer to Fig. 3 and Fig. 4, Fig. 3 is the schematic diagram of airflow sensing apparatus 3 according to another embodiment of the present invention, and wherein conducting element 36 is switched to the first state; Fig. 4 is the schematic diagram that conducting element 36 in Fig. 3 is switched to the second state.Airflow sensing apparatus 3 is with the main difference part of above-mentioned airflow sensing apparatus 1, and the conducting element 36 of airflow sensing apparatus 3 is cylinder, as shown in Figure 3 and Figure 4.Conducting element 36 is arranged in housing 10 rotationally, and conducting element 36 is pivotally switched between the second state shown in the first state shown in Fig. 3 and Fig. 4.In practical application, conducting element 36 can be articulated in housing 10 by pivot (not shown).
In this embodiment, conducting element 36 has guide groove 360.As shown in Figure 3, when conducting element 36 is switched to the first state, conducting element 36 covers the 3rd opening 106 and opens the second opening 104, makes the first opening 102, accommodation space 100, guide groove 360 and the second opening 104 form first passage P1.Now, the first air-flow A1 outside housing 10 can flow through sensor 14 via first passage P1.By this, sensor 14 can sense the air quality of the first air-flow A1 before filtration, using the foundation as adjustment fan 18 rotating speed.As shown in Figure 4, when conducting element 36 is switched to the second state, conducting element 36 covers the second opening 104 and opens the 3rd opening 106, makes the first opening 102, accommodation space 100, guide groove 360 and the 3rd opening 106 form second channel P2.Now, sensor 14 can be flowed through via second channel P2 by fan 18 suction casing 10 by the second air-flow A2 of filter screen 12.By this, sensor 14 can sense the air quality of the second air-flow A2 after filter screen 12 filters, using as the foundation whether changing filter screen 12.
In other words, when user makes airflow sensing apparatus 3 normal operation carry out filtered air, conducting element 36 can be switched to the first state shown in Fig. 3 by airflow sensing apparatus 3, and when user for judge filter screen 12 whether this replacing time, conducting element 36 can be switched to the second state shown in Fig. 4 by airflow sensing apparatus 3.Therefore, the present invention, by the design of conducting element 36 with gas channel P1, P2, utilizes single sensor 14 to sense the air-flow A2 after the air-flow A1 before filter screen 12 filters with filtration, not only simple to operate, and can not increase too much setup cost.It should be noted that, the switching of conducting element 36 can be arranged in pairs or groups mechanism design and automatically switching via circuit, or via mechanism design by user's manual switchover, depending on practical application.
Refer to Fig. 5 and Fig. 6, Fig. 5 is the schematic diagram of airflow sensing apparatus 5 according to another embodiment of the present invention, and wherein the second hollow cylinder 562 of conducting element 56 is switched to the first state; Fig. 6 is the schematic diagram that the second hollow cylinder 562 of conducting element 56 in Fig. 5 is switched to the second state.Airflow sensing apparatus 5 is with the main difference part of above-mentioned airflow sensing apparatus 1, and the conducting element 56 of airflow sensing apparatus 5 comprises the first hollow cylinder 560 and the second hollow cylinder 562, as shown in figs. 5 and 6.First hollow cylinder 560 to be fixed in housing 10 and to have the 4th opening 564, and wherein the 4th opening 564 is communicated with the 3rd opening 106.Second hollow cylinder 562 is arranged in housing 10 rotationally, and the second hollow cylinder 562 is pivotally switched between the second state shown in the first state shown in Fig. 5 and Fig. 6.In practical application, the second hollow cylinder 562 can be articulated in housing 10 by a pivot (not shown).In addition, the second hollow cylinder 562 has the 5th opening 566.
As shown in Figure 5, when the second hollow cylinder 562 is switched to the first state, 3rd opening 106, the 4th opening 564, the 5th opening 566 and the second opening 104 conducting, make the first opening 102, accommodation space 100, the 3rd opening 106, the 4th opening 564, the 5th opening 566 and the second opening 104 form first passage P1.Now, the first air-flow A1 outside housing 10 can flow through sensor 14 via first passage P1.By this, sensor 14 can sense the air quality of the first air-flow A1 before filtration, using the foundation as adjustment fan 18 rotating speed.As shown in Figure 6, when the second hollow cylinder 562 is switched to the second state, second hollow cylinder 562 covers the second opening 104, and the 3rd opening 106, the 4th opening 564 and the 5th opening 566 conducting, make the first opening 102, accommodation space 100, the 3rd opening 106, the 4th opening 564 and the 5th opening 566 form second channel P2.Now, sensor 14 can be flowed through via second channel P2 by fan 18 suction casing 10 by the second air-flow A2 of filter screen 12.By this, sensor 14 can sense the air quality of the second air-flow A2 after filter screen 12 filters, using as the foundation whether changing filter screen 12.
In other words, when user makes airflow sensing apparatus 5 normal operation carry out filtered air, second hollow cylinder 562 of conducting element 56 can be switched to the first state shown in Fig. 5 by airflow sensing apparatus 5, and when user for judge filter screen 12 whether this replacing time, the second hollow cylinder 562 of conducting element 56 can be switched to the second state shown in Fig. 6 by airflow sensing apparatus 5.Therefore, the present invention, by the design of conducting element 56 with gas channel P1, P2, utilizes single sensor 14 to sense the air-flow A2 after the air-flow A1 before filter screen 12 filters with filtration, not only simple to operate, and can not increase too much setup cost.It should be noted that, the switching of the second hollow cylinder 562 of conducting element 56 can be arranged in pairs or groups mechanism design and automatically switching via circuit, or via mechanism design by user's manual switchover, depending on practical application.
Refer to Fig. 7 and Fig. 8, Fig. 7 is the schematic diagram of airflow sensing apparatus 7 according to another embodiment of the present invention, and wherein conducting element 76 is switched to the first state; Fig. 8 is the schematic diagram that conducting element 76 in Fig. 7 is switched to the second state.Airflow sensing apparatus 7 is with the main difference part of above-mentioned airflow sensing apparatus 1, the conducting element 76 of airflow sensing apparatus 7 is plate and is arranged in housing 10 movably, and conducting element 76 is switched in a movable manner between the second state shown in the first state shown in Fig. 7 and Fig. 8.In practical application, the present invention can form chute (not shown) in housing 10, and is arranged in this chute by conducting element 76, is arranged at movably in housing 10 to make conducting element 76.In addition, conducting element 76 also can be pliability plate, and conducting element 76 can be out of shape along the inner structure of housing 10 in process movably.
As shown in Figure 7, when conducting element 76 is switched to the first state, conducting element 76 covers the 3rd opening 106, makes the first opening 102, accommodation space 100 and the second opening 104 form first passage P1.Now, the first air-flow A1 outside housing 10 can flow through sensor 14 via first passage P1.By this, sensor 14 can sense the air quality of the first air-flow A1 before filtration, using the foundation as adjustment fan 18 rotating speed.As shown in Figure 8, when conducting element 76 is switched to the second state, conducting element 76 opens the 3rd opening 106, makes the first opening 102, accommodation space 100 and the 3rd opening 106 form second channel P2.Now, because the second opening 104 is also in opening, the present invention can make the 3rd opening 106 be greater than the second opening 104, make the resistance flowing to the 3rd opening 106 by the second air-flow A2 of filter screen 12 by fan 18 suction casing 10 be less than the resistance flowing to the second opening 104, thus cause the blast at the 3rd opening 106 place to be greater than the blast at the second opening 104 place.Therefore, by fan 18 suction casing 10 by the whole of the second air-flow A2 of filter screen 12 or at least major part can flow through sensor 14 via second channel P2.By this, sensor 14 can sense the air quality of the second air-flow A2 after filter screen 12 filters, using as the foundation whether changing filter screen 12.
In other words, when user makes airflow sensing apparatus 7 normal operation carry out filtered air, conducting element 76 can be switched to the first state shown in Fig. 7 by airflow sensing apparatus 7, and when user for judge filter screen 12 whether this replacing time, conducting element 76 can be switched to the second state shown in Fig. 8 by airflow sensing apparatus 7.Therefore, the present invention is by the design of conducting element 76, gas channel P1, P2, the second opening 104 and the 3rd opening 106, single sensor 14 is utilized to sense the air-flow A2 after the air-flow A1 before filter screen 12 filters with filtration, not only simple to operate, and too much setup cost can not be increased.It should be noted that, the switching of conducting element 76 can be arranged in pairs or groups mechanism design and automatically switching via circuit, or via mechanism design by user's manual switchover, depending on practical application.
Refer to Fig. 9 and Figure 10, Fig. 9 is the schematic diagram of conducting element 96 according to another embodiment of the present invention, and wherein the second plate 962 of conducting element 96 is switched to the first state; Figure 10 is the schematic diagram that the second plate 962 of conducting element 96 in Fig. 9 is switched to the second state.Conducting element 96 is with the main difference part of above-mentioned conducting element 16, and conducting element 96 comprises the first plate 960 and the second plate 962, as shown in Figures 9 and 10.Conducting element 96 mode of vertical paper can replace the conducting element 76 of Fig. 7, and corresponding 3rd opening 106 and be arranged in housing 10, wherein the first plate 960 to be fixed in housing 10 and to have the 4th opening 964,4th opening 964 is communicated with the 3rd opening 106, and the second plate 962 is arranged in housing 10 rotationally, the second plate 962 is pivotally switched between the second state shown in the first state shown in Fig. 9 and Figure 10.In practical application, the second plate 962 can be articulated in housing 10 by pivot (not shown).In addition, the second plate 962 has the 5th opening 966.It should be noted that, conducting element 76 entirety in Fig. 7 can move relative to the 3rd opening 106, and conducting element 96 in Fig. 9 non-integral can move relative to the 3rd opening 106, but the first plate 960 of conducting element 96 is motionless relative to the 3rd opening 106, second plate 962 of conducting element 96 can rotate relative to the 3rd opening 106.
As shown in Fig. 7 and Fig. 9, when the second plate 962 is switched to the first state, the second plate 962 covers the 4th opening 964 and the 3rd opening 106, makes the first opening 102, accommodation space 100 and the second opening 104 form first passage P1.Now, the first air-flow A1 outside housing 10 can flow through sensor 14 via first passage P1.By this, sensor 14 can sense the air quality of the first air-flow A1 before filtration, using the foundation as adjustment fan 18 rotating speed.As shown in Fig. 8 and Figure 10, (conducting element 96 shown in Figure 10 is arranged at the 3rd opening 106 place shown in Fig. 8, but not be arranged at conducting element 76 place being in the second state shown in Fig. 8), when the second plate 962 is switched to the second state, 3rd opening 106, the 4th opening 964 and the 5th opening 966 conducting, make the first opening 102, accommodation space 100, the 3rd opening 106, the 4th opening 964 and the 5th opening 966 form second channel P2.Now, because the second opening 104 is also in opening, the present invention can make the 3rd opening 106, the 4th opening 964 and the 5th opening 966 all be greater than the second opening 104, make the resistance flowing to the 3rd opening 106, the 4th opening 964 and the 5th opening 966 by the second air-flow A2 of filter screen 12 by fan 18 suction casing 10 be less than the resistance flowing to the second opening 104, thus cause the 3rd opening 106, blast that the blast at the 4th opening 964 and the 5th opening 966 place is greater than the second opening 104 place.Therefore, sensor 14 can be flowed through via second channel P2 by fan 18 suction casing 10 by the second air-flow A2 of filter screen 12.By this, sensor 14 can sense the air quality of the second air-flow A2 after filter screen 12 filters, using as the foundation whether changing filter screen 12.
In other words, when user makes airflow sensing apparatus normal operation carry out filtered air, second plate 962 of conducting element 96 can be switched to the first state shown in Fig. 9 by airflow sensing apparatus, and when user for judge filter screen 12 whether this replacing time, the second plate 962 of conducting element 96 can be switched to the second state shown in Figure 10 by airflow sensing apparatus.Therefore, the present invention is by the design of conducting element 96, gas channel P1, P2, the second opening 104 the 3rd opening 106, the 4th opening 964 and the 5th opening 966, single sensor 14 is utilized to sense the air-flow A2 after the air-flow A1 before filter screen 12 filters with filtration, not only simple to operate, and too much setup cost can not be increased.It should be noted that, the switching of the second plate 962 of conducting element 96 can be arranged in pairs or groups mechanism design and automatically switching via circuit, or via mechanism design by user's manual switchover, depending on practical application.
In sum, the present invention arranges the conducting element that can carry out switching between the first state and the second state in the housing of airflow sensing apparatus.When conducting element is switched to the first state, namely the first air-flow before the filtration outside housing can flow through sensor, makes sensor can sense the air quality of the first air-flow before filtration, using the foundation as adjustment rotation speed of the fan.On the other hand, when conducting element is switched to the second state, namely can flow through sensor by the second air-flow after the filtration of filter screen, make sensor can sense the air quality of the second air-flow after filtration, using as the foundation whether changing filter screen.Therefore, the present invention by the design of conducting element and gas channel, utilize single sensor sense through before strainer filtering with filter after air-flow, not only simple to operate, and too much setup cost can not be increased.
The present invention is described by above-mentioned related embodiment, but above-described embodiment is only enforcement example of the present invention.Must it is noted that the embodiment disclosed limit the scope of the invention.On the contrary, change done without departing from the spirit and scope of the present invention and retouching, all belong to scope of patent protection of the present invention.
Claims (6)
1. an airflow sensing apparatus, is characterized in that, comprises:
Housing, has accommodation space, the first opening, the second opening and the 3rd opening;
Filter screen, is arranged in this housing;
Sensor, is arranged in this accommodation space; And
Conducting element, is arranged in this housing, and this conducting element can switch between the first state and the second state;
Wherein, when this conducting element is switched to this first state, this first opening, this accommodation space and this second opening form first passage, and make the first air-flow outside this housing flow through this sensor via this first passage, this sensor senses the air quality of this first air-flow; When this conducting element is switched to this second state, this first opening, this accommodation space and the 3rd opening form second channel, make to flow through this sensor by the second air-flow of this filter screen via this second channel, this sensor senses the air quality of this second air-flow.
2. airflow sensing apparatus as claimed in claim 1, it is characterized in that, this conducting element is plate and is arranged at rotationally in this housing, and this conducting element is pivotally switched between this first state and this second state; When this conducting element is switched to this first state, this conducting element covers the 3rd opening; When this conducting element is switched to this second state, this conducting element covers this second opening.
3. airflow sensing apparatus as claimed in claim 1, it is characterized in that, this conducting element is cylinder and is arranged at rotationally in this housing, and this conducting element is pivotally switched between this first state and this second state, and this conducting element has guide groove; When this conducting element is switched to this first state, this conducting element covers the 3rd opening, and this first opening, this accommodation space, this guide groove and this second opening form this first passage; When this conducting element is switched to this second state, this conducting element covers this second opening, and this first opening, this accommodation space, this guide groove and the 3rd opening form this second channel.
4. airflow sensing apparatus as claimed in claim 1, it is characterized in that, this conducting element comprises the first hollow cylinder and the second hollow cylinder, this first hollow cylinder to be fixed in this housing and to have the 4th opening, 4th opening and the 3rd open communication, this second hollow cylinder is arranged in this housing rotationally, and this second hollow cylinder is pivotally switched between this first state and this second state, and this second hollow cylinder has the 5th opening; When this second hollow cylinder is switched to this first state, 3rd opening, the 4th opening, the 5th opening and this second opening conducting, make this first opening, this accommodation space, the 3rd opening, the 4th opening, the 5th opening and this second opening form this first passage; When this second hollow cylinder is switched to this second state, this second hollow cylinder covers this second opening, and the 3rd opening, the 4th opening and the 5th opening conducting, make this first opening, this accommodation space, the 3rd opening, the 4th opening and the 5th opening form this second channel.
5. airflow sensing apparatus as claimed in claim 1, it is characterized in that, this conducting element is plate and is arranged at movably in this housing, and this conducting element is switched in a movable manner between this first state and this second state; 3rd opening is greater than this second opening; When this conducting element is switched to this first state, this conducting element covers the 3rd opening; When this conducting element is switched to this second state, this conducting element opens the 3rd opening.
6. airflow sensing apparatus as claimed in claim 1, it is characterized in that, this conducting element comprises the first plate and the second plate, this first plate to be fixed in this housing and to have the 4th opening, 4th opening and the 3rd open communication, this second plate is arranged in this housing rotationally, and this second plate is pivotally switched between this first state and this second state, and this second plate has the 5th opening; 3rd opening, the 4th opening and the 5th opening are all greater than this second opening; When this second plate is switched to this first state, this second plate covers the 4th opening and the 3rd opening; When this second plate is switched to this second state, the 3rd opening, the 4th opening and the 5th opening conducting, make this first opening, this accommodation space, the 3rd opening, the 4th opening and the 5th opening form this second channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410553629.9A CN104316648B (en) | 2014-10-17 | 2014-10-17 | Airflow sensing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410553629.9A CN104316648B (en) | 2014-10-17 | 2014-10-17 | Airflow sensing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104316648A CN104316648A (en) | 2015-01-28 |
| CN104316648B true CN104316648B (en) | 2016-04-20 |
Family
ID=52371907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410553629.9A Expired - Fee Related CN104316648B (en) | 2014-10-17 | 2014-10-17 | Airflow sensing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104316648B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842782B (en) * | 2017-02-24 | 2019-01-18 | 苏州佳世达光电有限公司 | Electronic device and its control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1727782A (en) * | 2004-07-26 | 2006-02-01 | 乐金电子(天津)电器有限公司 | Ventilation system |
| CN101650204A (en) * | 2008-08-11 | 2010-02-17 | 日立汽车系统株式会社 | Mass air flow measurement device |
| CN203672855U (en) * | 2013-10-15 | 2014-06-25 | 何艺 | Portable air quality detecting instrument based on T-shaped channel |
-
2014
- 2014-10-17 CN CN201410553629.9A patent/CN104316648B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1727782A (en) * | 2004-07-26 | 2006-02-01 | 乐金电子(天津)电器有限公司 | Ventilation system |
| CN101650204A (en) * | 2008-08-11 | 2010-02-17 | 日立汽车系统株式会社 | Mass air flow measurement device |
| CN203672855U (en) * | 2013-10-15 | 2014-06-25 | 何艺 | Portable air quality detecting instrument based on T-shaped channel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104316648A (en) | 2015-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20170328590A1 (en) | Parallel air filtration | |
| CN104316648B (en) | Airflow sensing apparatus | |
| KR101623333B1 (en) | Filter-changing type dust collector | |
| CN107940565A (en) | Air quality detecting device, air purifier, control method and device | |
| CN109758844A (en) | The double-deck dynamic filter mechanism and the range hood with the mechanism | |
| CN204735002U (en) | Multistage grease filter | |
| CN202715322U (en) | Oil mist filtering machine with filter screen oil stain accumulation detecting device | |
| CN104235963B (en) | A kind of throttle type air purifier | |
| CN202103981U (en) | Wind and sand peventing box body breathing apparatus | |
| CN205919461U (en) | Filter screen detects air purifier of function | |
| CN208786032U (en) | A kind of air cleaning unit | |
| CN105664654B (en) | A kind of cleaner | |
| CN114777243A (en) | Humidified air purifying apparatus and control method thereof | |
| TWI546114B (en) | Air flow sensing device | |
| CN207429912U (en) | Self set-up type air purifier | |
| CN108201751A (en) | Air purification device | |
| CN202822930U (en) | High-precision filter | |
| CN207688341U (en) | A kind of double air duct air purifiers for capableing of inletting fresh air | |
| CN205939451U (en) | Air purifier | |
| CN204476810U (en) | A kind of filtration air box | |
| CN204574287U (en) | A kind of architecture-integral air purifier | |
| CN209569867U (en) | A kind of new blower | |
| CN205556077U (en) | Sled dress formula filling station | |
| CN203253268U (en) | Dust remover with multiple discharging modes | |
| CN107560143A (en) | A kind of filter core mounting structure of air cleaner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20191017 |