CN203849336U - Detection circuit of electrostatic dust collection unit - Google Patents
Detection circuit of electrostatic dust collection unit Download PDFInfo
- Publication number
- CN203849336U CN203849336U CN201420160221.0U CN201420160221U CN203849336U CN 203849336 U CN203849336 U CN 203849336U CN 201420160221 U CN201420160221 U CN 201420160221U CN 203849336 U CN203849336 U CN 203849336U
- Authority
- CN
- China
- Prior art keywords
- resistance
- photoelectrical coupler
- diode
- air purifier
- dust collection
- 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
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Abstract
The utility model discloses a detection circuit of an electrostatic dust collection unit. The detection circuit comprises a first resistor, a second resistor, an optoelectronic coupler, a diode, a first capacitor and a second capacitor. The optoelectronic coupler is connected with a cathode of the diode through an anode of an internal light emitting diode. The anode of the diode and the cathode of the internal light emitting diode of the optoelectronic coupler are used to be connected with feedback signals of a dust collection unit. The second capacitor and the optoelectronic coupler are connected in parallel through the internal light emitting diode. The optoelectronic coupler is connected with an anode of a power supply through a collector electrode of an internal phototriode. An emitter electrode of the internal phototriode of the optoelectronic coupler is connected in series with the second resistor, and then connected with a power ground, and the emitter electrode is connected in series with the first resistor and then electrically connected with a main controller of an air purifier. The first capacitor is electrically connected between the main controller of the air purifier and the power ground. According to the detection circuit of the electrostatic dust collection unit provided by the utility model, the feedback signals of the dust collection unit can be detected in real time, signal transition is realized and the transmitted signals are transmitted to the main controller of the air purifier in real time.
Description
Technical field
The utility model relates to a kind of testing circuit, particularly electrostatic precipitation unit inspection circuit in a kind of air purifier.
Background technology
In recent years, the pollution of room air has caused the concern of each side, is applicable to the indoor air cleaner of the public place use such as large conference room, school, hospital with surprising develop rapidly, has formed an emerging industry.
Electrostatic precipitator technology is the technology that air purifier uses, the gas that contains dust granules, in the time being connected to high-voltage electric field that high-voltage DC power supply dust removing units forms and passing through, due to negative electrode generation corona discharge, gas is ionized, now, electronegative gaseous ion, under the effect of electric field force, plate motion on the sunny side, collide with dust granules at the volley, make grit lotus with negative electricity, grit after charged is under the effect of electric field force, also anode motion, arrive after anode, emit be with electronics, grit is deposited on dust removing units positive plate, and the gas being purified is discharged outside clarifier.But in the time that dust removing units has accumulated a large amount of dust foul, can affect the effect of dedusting, in order to keep the clean-up effect of air purifier, should tell in time user to clear up dust removing units.
Therefore, need to design a kind of dust removing units testing circuit, this circuit can detect dust removing units feedback signal, and changes this feedback signal into air purifier master controller discernible signal.
Utility model content
In view of this, the utility model provides a kind of electrostatic precipitation unit inspection circuit, adopts photoelectrical coupler that dust removing units feedback signal is converted to the discernible signal of air purifier master controller.
Electrostatic precipitation unit inspection circuit of the present utility model, comprises the first resistance, the second resistance, photoelectrical coupler, diode, the first electric capacity and the second electric capacity; Described photoelectrical coupler is connected with the negative electrode of diode by interior light emitting diodes anode; The anode of described diode is used for being connected dust removing units feedback signal with the negative electrode of photoelectrical coupler internal illumination two utmost points; Described the second electric capacity is extremely in parallel by internal illumination two with photoelectrical coupler; Described photoelectrical coupler is connected with positive source by the collector of inner phototriode; The emitter of the inner phototriode of described photoelectrical coupler connects power supply ground after connecting with the second resistance respectively, electrical connection air purifier master controller after connecting with the first resistance; Described the first electric capacity is electrically connected between air purifier master controller and power supply ground.
Further, described electrostatic precipitation unit inspection circuit also comprises the 3rd resistance, and described the 3rd resistance is in parallel with photoelectrical coupler interior light emitting diodes.
Further, described photoelectrical coupler is PC817, and this photoelectrical coupler not only can play retroactive effect can also play input and output isolation.
Further, described the first resistance is 1K, and described the second resistance is 5K.
The beneficial effects of the utility model: electrostatic precipitation unit inspection circuit of the present utility model, can detect in real time dust removing units feedback signal, and realize signal conversion, give in real time air purifier master controller by switching signal.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further described.
Fig. 1 is circuit diagram of the present utility model.
Embodiment
Fig. 1 is circuit diagram of the present utility model, as shown in the figure: electrostatic precipitation unit inspection circuit of the present utility model comprises the first resistance 1, the second resistance 5, photoelectrical coupler 2, diode 3, the first electric capacity 4 and the second electric capacity 7; Described photoelectrical coupler 2 is connected with the negative electrode of diode 3 by interior light emitting diodes anode; The anode of described diode 3 is used for being connected dust removing units feedback signal with the negative electrode of photoelectrical coupler 2 internal illumination two utmost points; Described the second electric capacity 7 is extremely in parallel by internal illumination two with photoelectrical coupler 2; Described photoelectrical coupler 2 is connected with positive source by the collector of inner phototriode; The emitter of described photoelectrical coupler 2 inner phototriodes connects power supply ground after connecting with the second resistance 5 respectively, electrical connection air purifier master controller after connecting with the first resistance 1; Described the first electric capacity 4 is electrically connected between air purifier master controller and power supply ground.
Principle of work of the present utility model is: whether dust removing units feedback signal is luminous and then control whether conducting of phototriode by controlling photoelectrical coupler 2 internal illumination two utmost points, the whether conducting and then just can identify dust removing units and whether have dust to need to clear up of the phototriode of air purifier master controller by judge photoelectrical coupler 2 inside.
In the present embodiment, described electrostatic precipitation unit inspection circuit also comprises the 3rd resistance 6, and described the 3rd resistance 6 is in parallel with photoelectrical coupler 2 interior light emitting diodes, plays shunting action, protection photoelectrical coupler 2.
In the present embodiment, described photoelectrical coupler 2 is PC817, and this photoelectrical coupler not only can play retroactive effect can also play input and output isolation.
In the present embodiment, described the first resistance 1 resistance is 1K, and described the second resistance 5 resistances are 5K.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (4)
1. an electrostatic precipitation unit inspection circuit, is characterized in that, comprises the first resistance (1), the second resistance (5), photoelectrical coupler (2), diode (3), the first electric capacity (4) and the second electric capacity (7); Described photoelectrical coupler (2) is connected with the negative electrode of diode (3) by interior light emitting diodes anode; The anode of described diode (3) is used for being connected dust removing units feedback signal with the negative electrode of photoelectrical coupler (2) internal illumination two utmost points; Described the second electric capacity (7) is extremely in parallel by internal illumination two with photoelectrical coupler (2); Described photoelectrical coupler (2) is connected with positive source by the collector of inner phototriode; The emitter of the inner phototriode of described photoelectrical coupler (2) connects power supply ground after connecting with the second resistance (5) respectively, electrical connection air purifier master controller after connecting with the first resistance (1); Described the first electric capacity (4) is electrically connected between air purifier master controller and power supply ground.
2. electrostatic precipitation unit inspection circuit according to claim 1, is characterized in that: also comprise the 3rd resistance (6), described the 3rd resistance (6) is in parallel with photoelectrical coupler (2) interior light emitting diodes.
3. electrostatic precipitation unit inspection circuit according to claim 1, is characterized in that: described photoelectrical coupler (2) is PC817, and this photoelectrical coupler not only can play retroactive effect can also play input and output isolation.
4. electrostatic precipitation unit inspection circuit according to claim 1, is characterized in that: described the first resistance (1) resistance is 1K, and described the second resistance (5) resistance is 5K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420160221.0U CN203849336U (en) | 2014-04-03 | 2014-04-03 | Detection circuit of electrostatic dust collection unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420160221.0U CN203849336U (en) | 2014-04-03 | 2014-04-03 | Detection circuit of electrostatic dust collection unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203849336U true CN203849336U (en) | 2014-09-24 |
Family
ID=51562337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420160221.0U Expired - Fee Related CN203849336U (en) | 2014-04-03 | 2014-04-03 | Detection circuit of electrostatic dust collection unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203849336U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184825A (en) * | 2021-12-08 | 2022-03-15 | 北京深思数盾科技股份有限公司 | Detection device, ion generator and air purifier |
-
2014
- 2014-04-03 CN CN201420160221.0U patent/CN203849336U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184825A (en) * | 2021-12-08 | 2022-03-15 | 北京深思数盾科技股份有限公司 | Detection device, ion generator and air purifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20150403 |
|
| EXPY | Termination of patent right or utility model |