CN211233260U - Filter screen dust accumulation detection device and air conditioner - Google Patents
Filter screen dust accumulation detection device and air conditioner Download PDFInfo
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- CN211233260U CN211233260U CN201922102629.8U CN201922102629U CN211233260U CN 211233260 U CN211233260 U CN 211233260U CN 201922102629 U CN201922102629 U CN 201922102629U CN 211233260 U CN211233260 U CN 211233260U
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Abstract
The utility model provides a filter screen laying dust detection device and air conditioner, filter screen laying dust detection device includes photo resistance and host system, photo resistance is suitable for and installs in the upper and lower both sides of filter screen, photo resistance with host system communication connection, host system basis photo resistance's resistance changes, judges the laying dust degree of filter screen. The utility model provides a filter screen laying dust detection device, through installing the photo resistance in filter screen upper and lower both sides to according to the change of two sets of photo resistance output voltage, judge the filter screen laying dust degree, realize the real-time supervision of filter screen laying dust, and detect precision and reliability all higher; in addition, the filter screen dust accumulation detection device is simple and compact in structural design and strong in universality, and the filter screen filth blockage condition can be detected without stopping the machine.
Description
Technical Field
The utility model relates to an air conditioner technical field particularly, relates to a filter screen laying dust detection device and air conditioner.
Background
Most of equipment at present adopt the filter screen to come air-purifying, for example air conditioner and air purifier, but along with the long-term operation of equipment, the filter screen laying dust phenomenon is more and more serious, needs clear up and change the filter screen. However, these apparatuses are affected by the use environment, the frequency of use, and the like, and the periods of cleaning and replacement are different. Therefore, it is desirable to provide a device for detecting dust deposited on a filter screen with a reminding function, which can perform cleaning or replacement in time when the dust deposited on the filter screen reaches a cleaning or replacement standard.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem lack among the prior art one kind reliably, detect the high device that carries out real-time detection and warning to the filter screen of precision.
In order to solve the problem, the utility model provides a filter screen laying dust detection device, including photo resistance and host system, photo resistance is suitable for and installs in the upper and lower both sides of filter screen, photo resistance with host system communication connection, host system basis photo resistance's resistance changes, judges the laying dust degree of filter screen.
The utility model provides a filter screen laying dust detection device, through installing the photo resistance in filter screen upper and lower both sides to according to the change of two sets of photo resistance output voltage, judge the filter screen laying dust degree, realize the real-time supervision of filter screen laying dust, and detect precision and reliability all higher; in addition, the filter screen dust accumulation detection device is simple and compact in structural design and strong in universality, and the filter screen filth blockage condition can be detected without stopping the machine.
Further, still include thermal-insulated dustproof construction, thermal-insulated dustproof construction locates the outside of photo resistance is used for right photo resistance prevents dust, thermal-insulated.
From this, through setting up thermal-insulated dustproof construction, avoid the surperficial deposition of photo resistance, reduce ambient temperature to the influence of photo resistance, improve photo resistance's detection precision and reliability.
Further, thermal-insulated dustproof construction includes the dust guard, the dust guard is located the top of photo resistance.
Because the both sides of filter screen are located to the photo resistance, easily attach on the photo resistance surface when dust or other impurity process photo resistance, and set up the dust guard above the photo resistance, can prevent dust to the photo resistance in advance and keep off the ash, avoid the surface deposition of photo resistance.
Further, be provided with the printing opacity mouth on the dust guard, light is suitable for to pass through the printing opacity mouth shines into the photo resistance.
Therefore, the dustproof plate has a dustproof effect on the photoresistor, and the arrangement of the light-transmitting opening does not influence the photoresistor to receive light.
Further, thermal-insulated dustproof construction still includes control mechanism, control mechanism is used for controlling the printing opacity mouth is opened and is closed.
When the filter screen dust deposition detection device starts, the light transmission opening is opened, and when the filter screen dust deposition detection device is closed, the light transmission opening is closed. Therefore, impurities such as dust are prevented from entering through the light-transmitting opening, so that dust on the surface of the photoresistor is prevented from being accumulated, and the detection precision of the photoresistor is prevented from being influenced.
Further, control mechanism includes motor, threaded connection pole and shutter, the shutter set up in on the dust guard, the motor passes through the threaded connection pole drive the shutter is opened or is closed.
Therefore, the opening and closing of the light transmission opening are realized through the opening and closing of the shutter, and the realization mode is simple and stable.
Further, the dust-proof plate is made of a transparent material.
Therefore, the intensity of light irradiated into the photoresistor is increased, and the reliability of the photoresistor is improved.
Further, thermal-insulated dustproof construction still includes bottom plate and connecting plate, the bottom plate with the dust guard upper and lower parallel arrangement, the connecting plate perpendicular to the bottom plate with the dust guard sets up, photo resistance sets up on the bottom plate.
From this, bottom plate, dust guard and connecting plate constitute a fixed frame, and the photo resistance is located inside the fixed frame, not only has the bearing effect, still has dustproof effect simultaneously.
Further, thermal-insulated dustproof construction still includes the support, the support set up in the bottom plate with between the dust guard.
Therefore, the stability of a fixed frame formed by the dustproof plate, the bottom plate and the connecting plate is improved, and the working stability of the photoresistor is further improved.
Further, thermal-insulated dustproof construction still includes transparent heat exchanger that separates, transparent heat exchanger that separates is located on the bottom plate and cover and locate the outside of photo resistance.
Therefore, the photoresistor is not influenced by the external temperature, and meanwhile, the photoresistor is not influenced to receive light, and the probability of dust deposition on the surface of the photoresistor is also reduced.
Furthermore, the device also comprises a signal processing module, wherein the photosensitive resistor is in communication connection with the signal processing module, and the signal processing module is in communication connection with the main control module.
Therefore, the signal processing module can convert the resistance value signal of the photosensitive resistor into other signals which are easy to process by the main control module, and the processing efficiency of the device is improved.
Furthermore, the signal processing module comprises an output circuit and a voltage comparator, the output circuit is electrically connected with the voltage comparator, the output circuit is used for converting the resistance value signal of the photoresistor into a voltage signal, and the voltage comparator is used for comparing the voltage signal.
Therefore, the resistance signal of the photoresistor is converted into a voltage signal which is easy to process, and the light receiving difference of the two photoresistors is judged by comparing the voltage data.
The utility model also provides an air conditioner, which comprises an indoor unit, wherein the indoor unit comprises a panel, an air inlet, a filter screen and an evaporator, and the filter screen is arranged between the air inlet and the evaporator; still include as above any one filter screen laying dust detection device, filter screen laying dust detection device's photo resistance is located respectively the air intake with between the filter screen and the filter screen with between the evaporimeter.
Further, still include lamp plate display module, lamp plate display module set up in on the panel of indoor set, lamp plate display module with filter screen laying dust detection device's host system communication connection.
From this, show host system's processing result through lamp plate display module to remind user's filter screen deposition degree.
Further, lamp plate display module includes LED pilot lamp and time-recorder, LED pilot lamp and time-recorder respectively with master control module communication connection.
Therefore, the detection result is displayed through the LED indicating lamp, a user is reminded of cleaning or replacing the filter screen, and the mode is simple and easy to identify; in addition, the running time of the air conditioner can be recorded through a timer, so that the air conditioner can be regularly detected according to a set period.
The utility model provides an air conditioner sets up a photo resistance respectively in the upper and lower both sides of the filter screen of air inlet department in the air conditioning, judges filter screen deposition degree through the photic degree that two photo resistance are different, realizes that the air conditioner does not shut down and detects the filthy stifled condition of filter screen to in time clear up and change the filter screen.
Drawings
FIG. 1 is an assembly view of a filter screen dust deposition detecting device and an air conditioner according to an embodiment of the present invention;
fig. 2 is a sectional view of the air conditioner of the embodiment of the present invention, taken along the direction a-a in fig. 1;
FIG. 3 is a partial cross-sectional view of the air conditioner of the embodiment of the present invention taken along the direction B-B in FIG. 1;
FIG. 4 is a structural diagram of a heat-insulating and dust-proof structure in an embodiment of the present invention;
FIG. 5 is a structural diagram of a heat-insulating and dust-proof structure according to another embodiment of the present invention;
fig. 6 is the utility model discloses in the embodiment of the utility model the work block diagram of filter screen laying dust detection device.
Description of reference numerals:
1-a lamp panel display module; 2-a filter screen dust deposition detection device; 3-a housing; 4-filtering with a filter screen; 5-an evaporator;
21-a photoresistor; 22-heat insulation and dust prevention structure; 23-a master control module; 24-a support frame;
221-a backplane; 222-dust guard; 223-connecting plate; 224-a scaffold; 225-transparent heat shield; 226-blinds; 227-a motor; 228-threaded connecting rod.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
In addition, the upper and lower portions in the embodiments of the present invention are indicated by the X-positive direction and the X-negative direction in the drawings. The V1 in the drawing indicates the air inlet direction, and V2 indicates the air outlet direction.
Please refer to fig. 3, an embodiment of the present invention provides a filter screen dust deposition detection apparatus 2, including main control module 23 and the photo resistor 21 installed on both sides of the filter screen 4, the photo resistor 21 is in communication connection with the main control module 23, and the main control module 23 determines the dust deposition degree of the filter screen 4 according to the resistance value change of the photo resistor 21 on both sides of the filter screen 4.
Because the photoresistor 21 is sensitive to light, the photoresistor 21 is in a high-resistance state in the absence of illumination, and free electrons and holes are excited in the material of the photoresistor 21 in the presence of illumination, so that the resistance value is reduced. In this embodiment, a set of photo resistors 21 are respectively disposed on two sides of the filter screen 4, and along the light irradiation direction, the light intensity received by the photo resistors 21 located on the upper side of the filter screen 4 is high, and the detected resistance value is low. The light sensitive resistor 21 on the lower side of the filter screen 4 reduces the light intensity because the filter screen 4 is distributed with impurities such as dust, hair, particles, fiber velvet and the like, so that the light intensity received by the light sensitive resistor 21 on the side is lower, and the detected resistance value is higher.
This embodiment utilizes natural light or indoor light shines the filter screen based on the luminousness of filter screen laying dust back filter screen diminishes and the different photo resistance's of photo resistance photic degree resistance is different, through the change of the resistance of 4 both sides photo resistance 21 of filter screen, can reach clearance or change standard in order to judge laying dust on the filter screen 4, and then clears up or change filter screen 4, and the device is simple. The laying dust thickness on direct detection filter screen surface among the prior art, the reliability is poor, perhaps represents the filter screen laying dust degree through the specific parameter value that detects filter screen one side, and detection precision and accuracy are lower, compares with prior art, and the filter screen laying dust detection device that this embodiment provided judges the laying dust degree based on the difference size of filter screen both sides detected value, and the upper and lower both sides of filter screen have the same detection benchmark, and the accuracy and the reliability of detection are higher.
The filter screen laying dust detection device 2 that this embodiment provided sets up photo resistance 21 respectively through 4 both sides at the filter screen, causes the characteristic that its resistance changes according to photo resistance 21 along with the intensity change of light transmission filter screen 4, judges the filthy stifled degree of filter screen 4, and device structural design is simple, can detect the filthy stifled condition of filter screen 4 under the equipment does not shut down the state.
Further, install two photo resistors in filter screen upper and lower both sides as a set of, in order to guarantee accuracy and the reliability that detects, filter screen laying dust detection device 2 includes two sets of or more than two sets of photo resistors, so, main control module 23 judges filter screen laying dust degree according to the multiunit detection difference, prevents to influence the rate of accuracy that detects because of the photo resistor trouble.
The filter screen 4 is generally arranged at the air inlet and is mainly used for filtering out impurities such as hair, fiber velvet, large particles and the like in the air. Further, in order to avoid the surface dust accumulation of the photo resistor 21 and the influence of the external temperature on the photo resistor 21, and reduce the detection precision of the photo resistor 21, as shown in fig. 3, the filter screen dust accumulation detection device 2 provided in this embodiment further includes a heat insulation and dust prevention structure 22, which is disposed outside the photo resistor 21 and used for preventing dust and heat of the photo resistor 21. It should be understood that the photo-resistors 21 on both sides of the filter screen 4 are provided with the heat-insulating and dust-proof structure 22, and the heat-insulating and dust-proof structure 22 is the same structure, so that the two photo-resistors 21 have the same comparison basis. The two heat-insulating dustproof structures 22 are connected through a support frame 24.
Specifically, as shown in fig. 4, the heat-insulating and dust-proof structure 22 includes a bottom plate 221, a dust-proof plate 222 and a connecting plate 223, the bottom plate 221 and the dust-proof plate 222 are arranged in parallel up and down, the connecting plate 223 is arranged perpendicular to the bottom plate 221 and the dust-proof plate 222, the same ends of the bottom plate 221 and the dust-proof plate 222 are connected to the connecting plate 223, and the bottom plate 221, the dust-proof plate 222 and the connecting plate 223 constitute a fixed frame. The light sensitive resistor 21 is arranged on the bottom plate 221, and the lead of the light sensitive resistor 21 is connected with the main control module 23. The dust-proof plate 222 is provided with a light-transmitting opening for allowing light to pass through and enter the photo resistor 21, wherein an arrow shown in fig. 4 is a light incidence direction.
Optionally, the heat-insulating dustproof structure 22 further includes a bracket 224 disposed between the bottom plate 221 and the dustproof plate 222 for increasing the stability of the fixing frame, so as to improve the working stability of the photo resistor 21.
Preferably, the central line of the area on the dust-proof plate 222 where the light-transmitting opening is located and the central line of the area on the bottom plate 221 where the photo-resistor 21 is located are located on the same vertical line, so that light can directly irradiate into the photo-resistor 21 through the light-transmitting opening, the path of the light is short, and the photo-resistor 21 can receive light quickly. In some embodiments, as shown in fig. 5, the central line of the area on the dust-proof plate 222 where the light-transmitting opening is located and the central line of the area on the bottom plate 221 where the photo-resistor 21 is located are not on the same vertical line, and at this time, light enters through the light-transmitting opening and is reflected by the bottom plate 221 and the dust-proof plate 222 to irradiate on the photo-resistor 21, wherein an arrow shown in fig. 5 is the incident direction of the light. It is preferable that the roughness of the lower surface of the dust-proof plate 222 and the upper surface of the bottom plate 221 is increased so that the light incident through the light-transmitting opening is diffused and the intensity of the light irradiated into the photo resistor 21 is increased.
Preferably, thermal-insulated dustproof construction still includes the control mechanism who is used for controlling the printing opacity mouth and opens and close, and when filter screen laying dust detection device 2 started, control mechanism control printing opacity mouth was opened, and light shines into photo resistor 21 through printing opacity mouth direct irradiation or after the diffuse reflection, and main control module 23 receives photo resistor 21's resistance value, changes through two photo resistor 21's resistance value, judges filter screen 4 laying dust degree. When filter screen laying dust detection device 2 closed, control mechanism control printing opacity mouth was closed, prevented that impurity such as dust from getting into through printing opacity mouth, causes the surface laying dust of photo resistance 21, influences photo resistance 21's detection precision.
In some embodiments, the control mechanism includes a louver 226 disposed on the dust-proof plate 222, and a motor 227 and a threaded connecting rod 228 for driving the louver 226 to open and close, the threaded connecting rod 228 is respectively connected to the motor 227 and each connecting shaft of the louver 226, and the motor 227 drives the louver 226 to open or close through the threaded connecting rod 228. The embodiment is not particularly limited as to the manner of opening and closing the louver 226.
Optionally, the dust-proof plate 222 is made of a transparent material, light can penetrate through the dust-proof plate 222 to irradiate the photo resistor 21, and dust, particles and the like cannot enter, so that the photo resistor 21 is ensured not to be influenced by impurities, but light receiving is not influenced. It should be understood that, when the dust guard 222 is transparent, in order to increase the intensity of the light received by the photo resistor 21, the light-transparent opening can be still arranged on the dust guard 222, the light-transparent opening can be arranged right above the photo resistor 21, and also can be arranged obliquely above the photo resistor 21, when the light-transparent opening is arranged right above the photo resistor 21, the heat-insulating and dust-proof structure comprises a control mechanism, which is used for controlling the opening and closing of the light-transparent opening, and preventing the filter screen dust accumulation detection device from being out of work, dust enters from the light-transparent opening, and dust accumulation on the surface of the photo resistor is caused. When the light-transmitting opening is arranged obliquely above the photoresistor 21, a control mechanism for controlling the opening and closing of the light-transmitting opening can be arranged, or the control mechanism is not arranged, so that the light-transmitting opening is always in an open state.
Further, the heat-insulating and dust-proof structure 22 further includes a transparent heat shield 225, and the transparent heat shield 225 is disposed on the bottom plate 221 and covers the outside of the photo resistor 21. The transparent heat shield 225 is transparent on one hand and does not affect the light received by the photoresistor 21, and on the other hand is heat-insulating, so that the photoresistor 21 is not affected by the outside temperature, and in addition, the transparent heat shield 225 further reduces the probability of dust deposition on the surface of the photoresistor 21.
Preferably, the filter screen dust deposition detection device 2 further includes a signal processing module, the light dependent resistor 21 is in communication connection with the signal processing module, and the signal processing module is connected with the main control module 23. Preferably, the signal processing module includes an output circuit and a voltage comparator, the output circuit is electrically connected to convert the received resistance signal of the photoresistor 21 into a voltage signal, the voltage comparator receives the voltage signals transmitted by the two output circuits and compares the two voltage signals, one of the output circuits is connected to a non-inverting input terminal of the voltage comparator, and the other output circuit is connected to an inverting input terminal of the voltage comparator. For example, the output circuit of the photo resistor 21 disposed on the upper side of the filter 4 is connected to the inverting input terminal of the voltage comparator, and the output circuit of the photo resistor 21 disposed on the lower side of the filter 4 is connected to the non-inverting input terminal of the voltage comparator. The main control module 23 receives the comparison voltage signal output by the voltage comparator and judges the filth blockage degree of the filter screen 4. Of course, the output circuit may also convert the received resistance signal into other signals, such as a current signal, and the corresponding voltage comparator is a comparator of the converted signal corresponding to the output circuit.
As shown in fig. 6, the photoresistor 21 receives external conditions such as natural light or lamplight irradiation, the photoresistor 21 is in communication connection with the signal processing module, the signal processing module is in communication connection with the main module, and the main module transmits a processing signal to the external alarm module to remind a user; the photoresistor 21, the signal processing module, the main control module 23 and the external alarm module are all powered by a power supply.
The utility model provides a filter screen dust deposition detection device 2, through installing photo resistance 21 on the upper and lower both sides of filter screen 4, and according to the change of two sets of photo resistance 21 output voltage, judge the dust deposition degree of filter screen 4, realize the real-time supervision of filter screen 4 dust deposition; the filter screen dust deposition detection device 2 is compact in structure and strong in universality, the photoresistor 21 has a heat-insulation and dust-proof design, and the detection precision and reliability are high.
Another embodiment of the utility model provides an air conditioner, as shown in fig. 1, 2, including indoor set, indoor set includes shell 3, panel, air intake, filter screen 4 and evaporimeter 5, and filter screen 4 sets up between air intake and evaporimeter 5. The air conditioner also comprises a filter screen dust deposition detection device 2, and the filter screen dust deposition detection device 2 comprises two photoresistors 21 which are arranged between the air inlet and the filter screen 4 and between the filter screen 4 and the evaporator 5.
The air conditioner also comprises a lamp panel display module 1 which is arranged on the panel. The lamp panel display module 1 is in communication connection with the main control module 23. The lamp panel display module 1 comprises LED indicating lamps for displaying different colors, and one LED lamp can display multiple colors; or a plurality of LED lamps each displaying a plurality of colors. The LED pilot lamp in this embodiment includes green lamp, yellow light and red light, and when main control module 23 judged that filter screen 4 is dirty stifled and needs clearance or change, main control module 23 output signal to lamp plate display module 1 to show the lamp of corresponding colour. Of course, the lamp panel display module 1 may also be other signals for reminding the user that the filth blockage of the filter screen 4 needs to be cleaned or replaced, such as an alarm, a voice prompt, and the like.
Optionally, the lamp panel display module 1 further comprises a timer, the timer is in communication connection with the main control module 23, the timer is used for operating time of the air conditioner, and when the air conditioner runs for a certain time, the main control module 23 controls the filter screen dust deposition detection device 2 to be started.
In this case, the bottom plate 221 and the dust-proof plate 222 are connected to the center frame by bolts. Of course, the connecting plate 223 may be another mounting plate fixed on the middle frame. In addition, the upper surface of the evaporator and the upper surface of the filter screen of the indoor unit may be used as the bottom plate 221 of the heat-insulating and dust-proof structure 22, in this case, the photo resistor 21 is disposed on the upper surface of the filter screen and the upper surface of the evaporator, and of course, the bottom plate 221 may be a separately disposed mounting plate fixed to the filter screen or the evaporator.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (15)
1. The utility model provides a filter screen laying dust detection device, its characterized in that, includes photo resistance (21) and host system (23), photo resistance (21) are suitable for and install in the upper and lower both sides of filter screen (4), photo resistance (21) with host system (23) communication connection, host system (23) basis the resistance of photo resistance (21) changes, judges the laying dust degree of filter screen (4).
2. The filter screen dust deposition detection device according to claim 1, further comprising a heat insulation and dust prevention structure (22), wherein the heat insulation and dust prevention structure (22) is arranged outside the photo resistor (21) and used for preventing dust and insulating heat of the photo resistor (21).
3. The filter screen dust deposition detection device according to claim 2, wherein the heat-insulation and dust-prevention structure (22) comprises a dust-prevention plate (222), and the dust-prevention plate (222) is arranged above the photoresistor (21).
4. The filter screen dust deposition detection device according to claim 3, wherein the dust guard (222) is provided with a light-transmitting opening, and light is suitable for irradiating the light-sensitive resistor (21) through the light-transmitting opening.
5. The filter screen dust accumulation detection device according to claim 4, wherein the heat-insulating and dust-proof structure (22) further comprises a control mechanism for controlling the opening and closing of the light transmission opening.
6. The screen dust deposition detection device according to claim 5, wherein the control mechanism comprises a motor (227), a threaded connection rod (228) and a shutter (226), the shutter (226) is disposed on the dust-proof plate (222), and the motor (227) drives the shutter (226) to open or close through the threaded connection rod (228).
7. The screen dust deposition detection device according to claim 3, wherein the dust guard (222) is made of a transparent material.
8. The filter screen dust deposition detection device according to claim 3, wherein the heat-insulation and dust-prevention structure (22) further comprises a bottom plate (221) and a connecting plate (223), the bottom plate (221) and the dust-prevention plate (222) are arranged in parallel up and down, the connecting plate (223) is arranged perpendicular to the bottom plate (221) and the dust-prevention plate (222), and the photoresistor (21) is suitable for being arranged on the bottom plate (221).
9. The screen dust deposition detection device according to claim 8, wherein the heat-insulating and dust-proof structure (22) further comprises a bracket (224), and the bracket (224) is disposed between the bottom plate (221) and the dust-proof plate (222).
10. The screen dust detection device according to claim 2, wherein the heat-insulating and dust-proof structure (22) comprises a transparent heat shield (225), and the transparent heat shield (225) is arranged outside the photoresistor (21).
11. The filter screen dust deposition detection device according to claim 1, further comprising a signal processing module, wherein the light dependent resistor (21) is in communication connection with the signal processing module, the signal processing module is in communication connection with the main control module (23), and the signal processing module is configured to convert a resistance signal of the light dependent resistor (21) into a signal that can be easily processed by the main control module (23).
12. The filter screen dust deposition detection device according to claim 11, wherein the signal processing module comprises an output circuit and a voltage comparator, the output circuit is electrically connected with the voltage comparator, the output circuit is used for converting the resistance signal of the photoresistor (21) into a voltage signal, and the voltage comparator is used for comparing the voltage signal.
13. An air conditioner, includes indoor set, indoor set includes air intake, filter screen (4) and evaporimeter (5), filter screen (4) set up in the air intake with between evaporimeter (5), its characterized in that still includes the filter screen laying dust detection device of any claim 1-12, filter screen laying dust detection device's photo resistance (21) are located respectively the air intake with between filter screen (4) and filter screen (4) with between evaporimeter (5).
14. The air conditioner of claim 13, further comprising a lamp panel display module (1), wherein the lamp panel display module (1) is disposed on a panel of the indoor unit, and the lamp panel display module (1) is in communication connection with a main control module (23) of the filter screen dust accumulation detection device.
15. The air conditioner as claimed in claim 14, wherein the lamp panel display module (1) comprises an LED indicator light and a timer, and the LED indicator light and the timer are respectively in communication connection with the main control module (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922102629.8U CN211233260U (en) | 2019-11-29 | 2019-11-29 | Filter screen dust accumulation detection device and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922102629.8U CN211233260U (en) | 2019-11-29 | 2019-11-29 | Filter screen dust accumulation detection device and air conditioner |
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| CN211233260U true CN211233260U (en) | 2020-08-11 |
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| CN201922102629.8U Active CN211233260U (en) | 2019-11-29 | 2019-11-29 | Filter screen dust accumulation detection device and air conditioner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779162A (en) * | 2019-11-29 | 2020-02-11 | 宁波奥克斯电气股份有限公司 | Filter screen dust accumulation detection device and method and air conditioner |
| CN117760050A (en) * | 2023-12-15 | 2024-03-26 | 科城爱高智慧能源科技(广州)有限公司 | Device and method for detecting blockage of filter screen of fresh air system |
-
2019
- 2019-11-29 CN CN201922102629.8U patent/CN211233260U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779162A (en) * | 2019-11-29 | 2020-02-11 | 宁波奥克斯电气股份有限公司 | Filter screen dust accumulation detection device and method and air conditioner |
| CN117760050A (en) * | 2023-12-15 | 2024-03-26 | 科城爱高智慧能源科技(广州)有限公司 | Device and method for detecting blockage of filter screen of fresh air system |
| CN117760050B (en) * | 2023-12-15 | 2024-05-14 | 科城爱高智慧能源科技(广州)有限公司 | Device and method for detecting blockage of filter screen of fresh air system |
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