CN207478175U - The air purifier of detectable filter element life - Google Patents

Abstract

The utility model relates to the technical field of air purification, and discloses an air purifier capable of detecting the service life of a filter element. The service condition of the filter element is detected through a life monitoring component arranged on the main body of the purifier. The concentration of harmful gases, the number and concentration of particulate matter, and the air resistance through the filter element, etc. The calculation element compares the detected data signal with the preset parameter data of the air purifier to determine whether the filter element has exceeded its service life. When the air is purified When the purifier exceeds the service life, the calculation element sends a reminder signal to the control element through the signal feedback element, and vice versa; after the control element receives the reminder signal, it controls the display component to display the reminder signal to the user. The displayed reminder signal clearly understands whether the filter element has exceeded its service life, so that the filter element can be replaced in time to ensure the effective work of the entire air purifier.

Description

An air purifier that detects filter life

technical field

The utility model relates to the technical field of air purification, in particular to an air purifier which can detect the service life of a filter element.

Background technique

In recent years, with the increasingly serious smog in various cities, air purifiers have also been widely used in household life. The filter element in the air purifier can filter and absorb harmful substances such as formaldehyde, large particles of dust and mold in the air.

In the process of using the air purifier, when to replace the filter element of the air purifier is also a matter of great concern to consumers. If the filter element reaches the service life limit, if it is not replaced in time, the purification effect of the air purifier will be affected. However, if the filter element is replaced before the service life of the filter element is reached, it will incur a large cost and cause a waste of resources.

In traditional technology, the countdown method is often used to monitor and calculate the life of the filter element used in the air purifier. However, the service life of the filter element is different for different usage environments. The service life of the filter element will be greatly shortened, and in areas with better air, the service life of the filter element will increase for a long time. The simple countdown method cannot accurately and effectively detect the service life of the filter element, and the user cannot determine whether the filter element has exceeded the service life. Thereby achieving the purpose of timely replacement.

Utility model content

The purpose of the utility model is to provide an air purifier which can detect the life of the filter element, so as to solve the problem in the prior art that the user cannot effectively detect the life of the filter element of the air purifier, so that the filter element cannot be replaced in time.

In order to solve the above problems, the utility model provides an air purifier that can detect the service life of the filter element, which includes a purifier main body and a filter element. The upper cover of the chamber is equipped with an air purification panel;

The main body of the purifier is provided with a control element and a life monitoring component for detecting the service life of the filter element, and the air purification panel is provided with a display component for prompting and notifying the user, and the display component and the life monitoring component are connected to the Electrical connection of control elements;

The life monitoring component includes a detection element, a calculation element, and a signal feedback element that feeds back a calculation result data signal, the data detected by the detection element is calculated by the calculation element to obtain a calculation result signal, and the calculation result signal is fed back through the signal feedback element to the control element.

Further, the main body of the purifier is provided with an air inlet and an air outlet, and the detection element is arranged on the air inlet and the air outlet.

Further, the detection element includes a plurality of electrochemical sensors for detecting the concentration of harmful gases, and the electrochemical sensors are arranged at the air inlet and the air outlet.

Further, the detection element includes a plurality of particle sensors for detecting particle concentration, and the particle sensors are arranged at the air inlet and the air outlet.

Further, the detection element includes a plurality of differential pressure gauges for monitoring the air circulation resistance of the filter element, and the differential pressure gauges are arranged in the purification chamber.

Further, the display component includes a display device for displaying prompt information and a voice device for playing a prompt sound, and the display device and the voice device are arranged on the upper end of the main body of the purifier.

Further, a control panel is provided on the upper end of the main body of the purifier, and the control panel includes control buttons and the display assembly.

The utility model provides an air purifier that can detect the service life of the filter element. The service condition of the filter element is detected by the life monitoring component arranged on the main body of the purifier. The calculation element compares the detected data signal with the preset parameter data of the air purifier to determine whether the filter element has exceeded its service life. When the air purifier exceeds its service life, The calculation element sends a reminder signal to the control element through the signal feedback element, and vice versa. After the control element receives the reminder signal, it controls the display component to display the reminder signal to the user. Know whether the filter element has exceeded its service life, so that the filter element can be replaced in time to ensure the effective work of the entire air purifier.

Description of drawings

Fig. 1 is the schematic diagram of the working principle of the air purifier with detectable filter core life provided by the utility model;

Fig. 2 is a structural schematic diagram of an air purifier with detectable filter core life provided by the utility model;

Fig. 3 is a schematic diagram of the working principle of Embodiment 1 of the utility model;

Fig. 4 is a schematic diagram of the working principle of the second embodiment of the utility model;

Fig. 5 is a schematic diagram of the working principle of the third embodiment of the utility model.

In the figure, 01, purifier main body; 02, filter element; 03, air purification panel; 10, life monitoring component; 20, control component; 30, display component; 101, detection component; 102, calculation component; 103, signal feedback component ; 1011, an electrochemical sensor; 1012, a particle sensor; 1013, a differential pressure gauge; 301, a display device; 302, a voice device.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

The electrical connection in this embodiment includes physical contact circuit connection and wireless communication signal connection.

1 to 5, schematically shows an air purifier that can detect the life of the filter element according to the embodiment of the present invention, including a purifier main body 01 and a filter element 02, and a purification chamber is provided in the purifier main body 01 , the filter element 02 is set in the purification chamber, and the upper cover of the purification chamber is provided with an air purification panel 03;

In order to enhance the purification effect of the air purifier, multi-layer filter elements 02 can be arranged sequentially in the purification chamber along the air inlet direction.

The main body of the purifier 01 is provided with a control element 20 and a life monitoring component 10. The control element 20 is the basic element for automatic control of the entire purifier. The life monitoring component 10 is used to detect the service life of the filter element 02. There is a display assembly 30 for prompting and notifying the user, the display assembly 30 and the life monitoring assembly 10 are electrically connected to the control element 20, and the life monitoring assembly 10 feeds back the data signal of the detected filter element 02 service life to the control element 20, and the control The component 20 controls the display component 30 to display a reminder signal to the user according to the received data signal.

The life monitoring component 10 includes a detection element 101, a calculation element 102, and a signal feedback element 103. The detection element 101 is installed in the purification chamber or on the filter element 02, and is used to detect data such as the concentration of harmful gases, the number and concentration of particulate matter passing through the air purifier Information, the calculation element 102 calculates the detection data information of the detection element 101 and compares and analyzes it with the parameter information preset by the system, so as to judge the service life of the filter element 02, and the signal feedback element 103 is used to feed back the calculation result data signal, and the detection element The data detected by 101 is calculated by the calculation component 102 to obtain a calculation result signal, and the calculation result signal is fed back to the control component 20 through the signal feedback component 103 .

Specifically, the usage of the filter element 02 is detected through the life monitoring component 10 arranged on the purifier main body 01, and the detection element 101 is used to detect the concentration of harmful gases in the air passing through the filter element 02, the concentration of particulate matter, and the air resistance through the filter element 02, etc. Data, the calculation element 102 compares the detected data signal with the preset parameter data of the air purifier to determine whether the filter element 02 has exceeded the service life. When the filter element 02 has not exceeded the service life, the calculation element 102 does not send a reminder to the control element 20 signal, the user can continue to use the filter element 02; when it is detected that the calculation filter element 02 exceeds the service life, the calculation element 102 sends a reminder signal to the control element 20 through the signal feedback element 103, and the control element 20 controls the display component 30 to display a reminder to the user after receiving the reminder signal signal, the user can clearly understand whether the filter element 02 has exceeded the service life through the reminder signal displayed on the display assembly 30 arranged on the upper end of the purifier main body 01, so as to replace the filter element 02 in time to ensure the effective operation of the entire air purifier.

The display assembly 30 in this embodiment includes a display device 301 for displaying prompt information and a voice device 302 for playing a prompt sound. The display device 301 can be a display lamp for displaying signal light, or a display screen, and the display lamp can display Different colors of light remind the user of the use of the filter element 02, such as yellow reminding the user that "the filter element 02 is about to be replaced", and red reminding the user that "the filter element 02 is completely invalid"; The audio and voice device 302 is arranged on the upper end of the main body 01 of the purifier, and reminds the user by setting a visual and auditory double-layer reminder mode, so that the user can detect the reminder signal in time and replace the filter element 02 in time.

The upper end of the purifier main body 01 is also provided with a control panel. The control panel includes control buttons and a display assembly 30. The control buttons are convenient for users or maintenance personnel to manually input signals or manipulate the air purifier. The display assembly 30 is used to display reminder signals. It is arranged on the upper end of the main body 01 of the purifier, which is convenient for operating and controlling the air purifier and viewing and monitoring at any time.

In the present utility model, the life monitoring component 10 is used to detect the service life of the filter element 02. There are many ways to realize the life of the filter element 02, see the following embodiments for details.

Embodiment one:

As shown in Figure 3, the main body of the purifier 01 is provided with an air inlet and an air outlet. The indoor air enters the air purifier through the air inlet, and is filtered by the filter element 02 to form purified air, which is drawn by the fan to the air outlet, and then released from the air outlet. In the room, the detection element 101 of the life monitoring component 10 is set on the air inlet and the air outlet, and the service life of the filter element 02 is judged by calculating and analyzing the concentration of harmful gases at the air inlet and the air outlet.

Specifically, the detection element 101 includes a plurality of electrochemical sensors 1011 for detecting the concentration of harmful gases in the air. Judge the usage of filter element 02.

The harmful gases detected by the electrochemical sensor 1011 in this embodiment mainly include formaldehyde, benzene, ammonia, TVOC (ie total volatile organic compounds) and ozone.

Further, there are preferably two electrochemical sensors 1011 in this embodiment, which are respectively arranged at the air inlet and the air outlet of the purifier main body 01 .

Specifically, taking the measurement of harmful gas formaldehyde as an example, when the concentration of formaldehyde detected at the air outlet is less than the preset value of 0.08mg/m3 of the air purifier (because the indoor formaldehyde concentration stipulated by the national standard shall not be greater than 0.08mg/m3, so in this embodiment It is preset as 0.08mg/m3, of course, the formaldehyde concentration value can also be preset as other values), the calculation element 102 judges whether the start-up time of the air purifier exceeds the preset maximum service life of the filter element 02 by calculation, in this embodiment Take the longest service life as one year, (of course, the longest service life of the filter element 02 can be set to other values, specifically set according to the longest service life set by the filter element 02 manufacturer), if it exceeds the preset maximum service life, the filter element 02 needs to be replaced, and the computing element 102 sends a "reminder" signal to the control element 20 through the signal feedback element 103. After the control element 20 receives the "reminder" signal, it controls the display component 30 on the upper end of the purifier main body 01 to display the reminder signal , the reminder signal displayed by the display assembly 30 prompts the user to replace the filter element 02, otherwise no;

When the formaldehyde concentration detected at the air outlet is greater than 0.08 mg/m3, the calculation element 102 starts to calculate the formaldehyde concentration ratio between the air inlet and the air outlet, if the formaldehyde concentration detected at the air outlet is greater than or equal to a preset value of the formaldehyde concentration at the air inlet , the preset ratio in this embodiment is 50%, then the filter element 02 needs to be replaced, the calculation element 102 sends a "reminder" signal to the control element 20 through the signal feedback element 103, and the control element 20 controls the purifier after receiving the "reminder" signal The display component 30 on the upper end of the main body 01 displays a reminder signal, and the reminder signal displayed by the display component 30 prompts and informs the user to replace the filter element 02, and vice versa;

In this embodiment, multiple ratios can be preset through the gradient to achieve multi-level reminders. For example, setting different ratios corresponds to "the filter element 02 is about to be replaced", "the filter element 02 needs to be replaced", "the filter element 02 is completely invalid", etc. Different reminding gradients, the control element 20 is electrically connected to the control circuit in the main body of the purifier 01, and when the control element 20 receives the signal of "complete failure of the filter element 02", the circuit can be disconnected, thereby causing the air purifier to stop Work.

The detection principle and working process of harmful gases such as benzene, ammonia, TVOC (total volatile organic compounds) and ozone are the same as those of formaldehyde, and the specific preset values refer to national standards and manufacturer presets.

In the present invention, the method for measuring the concentration of harmful gases is not limited to electrochemical sensors, but can also be semiconductor technology for measuring the concentration of harmful gases or laser absorption spectroscopy for measuring the concentration of harmful gases.

Embodiment two:

As shown in Figure 4, the difference between this embodiment and Embodiment 1 is that the detection element 101 is a plurality of particle sensors 1012 for detecting the concentration of particles, and the particle sensors 1012 are arranged at the air inlet and the air outlet. and the particle concentration value of the particulate matter at the air outlet to judge the use of the filter element 02.

Specifically, the detection element 101 includes a plurality of particulate matter sensors 1012 for detecting the concentration of particulate matter, preferably two, which are respectively placed at the air inlet and the air outlet of the air purifier, and are respectively used to detect the concentration of particulate matter at the air inlet and the air outlet. , judge the use of the filter element 02 by comparing the particle concentration values at the air outlet and the air inlet. When the particle concentration value detected at the air outlet is greater than or equal to a preset value of the particle concentration at the air inlet, the preset value in this embodiment If it is 50%, the filter element 02 needs to be replaced. The calculation element 102 sends a "reminder" signal to the control element 20 through the signal feedback element 103. After the control element 20 receives the "reminder" signal, it controls the display component 30 on the upper end of the purifier main body 01 to display the reminder. signal, the reminder signal displayed by the display assembly 30 prompts and informs the user to replace the filter element 02; otherwise, the computing element 102 further judges whether the start-up time of the air cleaner exceeds the preset longest service life of the filter element 02 through calculation. Take the longest service life as one year, (of course, the longest service life of the filter element 02 can be set to other values, specifically set according to the longest service life set by the filter element 02 manufacturer), if it exceeds the preset maximum service life, the filter element 02 needs to be replaced, and vice versa;

In this embodiment, multiple preset values can be preset through the gradient, thereby achieving the purpose of multi-level reminders, such as setting different preset values corresponding to "the filter element 02 is about to be replaced", "the filter element 02 needs to be replaced", "the filter element 02 Complete failure" and other different reminder gradients.

In this embodiment, the life of the filter element 02 can also be judged by calculating the total dirt holding capacity of the filter element 02 through the particle sensor 1012. Specifically, particle concentration*air volume*time=total dirt holding capacity, when it is detected that the total dirt holding capacity is greater than the preset capacity When the amount of pollution is high, the filter element 02 needs to be replaced. The calculation element 102 sends a "reminder" signal to the control element 20 through the signal feedback element 103. After the control element 20 receives the "reminder" signal, it controls the display component 30 on the upper end of the purifier main body 01 to display A reminder signal, the reminder signal displayed by the display assembly 30 prompts and informs the user to replace the filter element 02, and vice versa;

In this embodiment, multiple preset values can be set for multi-level reminders. For example, when the monitored total pollution holding capacity is 80% of the preset value, the user is reminded that "the filter element 02 is about to be replaced". The dirt holding capacity is 120% of the preset value, and the user is reminded that "the filter element 02 is completely invalid", and the control element 20 is electrically connected to the control circuit in the main body of the purifier 01, and the control element 20 receives the message "the filter element 02 is completely invalid". When the signal is activated, the circuit connection can be disconnected, thereby making the air purifier stop working.

The particle sensor 1012 is divided into the following test principles: light scattering method (white light, laser), gravimetric method, counting method, microscope method, DMA method (particle size analyzer), etc.

Embodiment three:

As shown in Figure 5, the filter element 02 is set in the purification chamber. The filter element 02 absorbs particulate matter and formaldehyde and other harmful substances in the air to filter and purify the air. The more harmful substances adsorbed on the filter element 02, the air flow resistance on the filter element 02 will increase. The difference between this embodiment and Embodiment 1 is that the detection element 101 includes a plurality of differential pressure gauges 1013 for monitoring the air circulation resistance of the filter element 02, and the differential pressure gauges 1013 are arranged in the purification chamber.

Specifically, the detection element 101 includes a plurality of differential pressure gauges 1013 for monitoring the air circulation resistance of the filter element 02, preferably one, and the differential pressure gauge 1013 is used for real-time monitoring of the air circulation resistance of the filter element 02, by comparing the The air circulation resistance and the preset air circulation resistance of the filter element 02 are used to judge the use of the filter element 02. When the air circulation resistance monitored by the differential pressure gauge 1013 is greater than the preset threshold, the filter element 02 needs to be replaced, and the calculation element 102 passes the signal feedback element 103 Send a "reminder" signal to the control element 20, after the control element 20 receives the "reminder" signal, control the display assembly 30 on the upper end of the purifier main body 01 to display the reminder signal, and notify the user to replace the filter element 02 through the reminder signal displayed by the display assembly 30; otherwise , the computing element 102 further judges whether the start-up time of the air purifier exceeds the preset longest service life of the filter element 02 by calculation, and the longest service life is taken as one year in this embodiment, (of course, the longest service life of the filter element 02 The service life can be set to other values, specifically according to the maximum service life set by the filter element 02 manufacturer), if the preset maximum service life is exceeded, the filter element 02 needs to be replaced, otherwise not.

The preset threshold of the air flow resistance of the filter element 02 is specifically set according to the air flow resistance threshold set by the manufacturer of the filter element 02 .

In this embodiment, the monitoring cycle of the differential pressure gauge 1013 can be set, such as once a week, once every half month, or once a month.

In this embodiment, along the air inlet direction, multiple pressure differential gauges 1013 can be provided on the air purifier, and multiple pressure differential gauges 1013 can be respectively arranged in the air inlet, air outlet, and purification chamber to detect the air inlet, air outlet, and cleaning chamber respectively. The air circulation resistance value of the air outlet and the air circulation resistance value of each place in the purification chamber is comprehensively compared and analyzed through the air resistance value of each place to ensure the accuracy of the test results.

The above is only the preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and replacements can also be made. And replacement should also be regarded as the protection scope of the present utility model.

Claims (7)

1. An air purifier capable of detecting the life of a filter element, characterized in that it comprises a purifier main body and a filter element, the purifier main body is provided with a purification chamber, the filter element is arranged in the purification chamber, and the purification chamber upper cover Equipped with air purification panel; The main body of the purifier is provided with a control element and a life monitoring component for detecting the service life of the filter element. The upper end of the main body of the purifier is provided with a display component for prompting and notifying the user. The display component and the life monitoring component are both connected to the Electrical connection of control elements; The life monitoring component includes a detection element, a calculation element, and a signal feedback element that feeds back a calculation result data signal, the data detected by the detection element is calculated by the calculation element to obtain a calculation result signal, and the calculation result signal is fed back through the signal feedback element to the control element. 2. The air purifier capable of detecting the service life of the filter element according to claim 1, wherein an air inlet and an air outlet are arranged on the main body of the purifier, and the detection element is arranged at the air inlet and the outlet. On the vent. 3. The air purifier capable of detecting filter element life as claimed in claim 2, wherein the detection element includes a plurality of electrochemical sensors for detecting the concentration of harmful gases, and the electrochemical sensors are arranged in the The air outlet and the air outlet. 4. The air purifier capable of detecting the service life of the filter element according to claim 2, wherein the detection element includes a plurality of particle sensors for detecting particle concentration, and the particle sensors are arranged at the air inlet and the Describe the air outlet. 5. The air purifier capable of detecting filter core life as claimed in claim 1, wherein the detection element includes a plurality of differential pressure gauges for monitoring the air circulation resistance of the filter core, and the differential pressure gauge is set in the clean chamber. 6. The air purifier capable of detecting filter element life as claimed in claim 1, wherein said display assembly includes a display device for displaying prompt information and a voice device for playing prompt sound, said display device and said The voice device is arranged on the upper end of the main body of the purifier. 7 . The air purifier capable of detecting the service life of a filter element according to claim 6 , wherein a control panel is provided on the upper end of the main body of the purifier, and the control panel includes control buttons and the display assembly. 8 .