CN210717902U

CN210717902U - Air purifier

Info

Publication number: CN210717902U
Application number: CN201921858663.1U
Authority: CN
Inventors: 龚梦洋; 贺新; 刘晓明
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-06-09
Anticipated expiration: 2029-10-31

Abstract

The utility model provides an air purifier. The air purifier comprises a shell with an accommodating chamber, a lifting device, a controller and a detachable filter element assembly, wherein the lifting device, the controller and the filter element assembly are arranged in the shell, the lifting device comprises a rotatable wheel disc, a power output piece and a lifting assembly, the power output piece is used for driving the wheel disc to rotate, the lifting assembly ascends or descends when the wheel disc rotates, and the controller is used for judging whether the air purifier is in a to-be-operated state or not when receiving an operation instruction; the controller is also used for determining whether the lifting device is at the first position or not when the air purifier is in a standby working state, and when the lifting assembly is not at the first position, the power output part controls the wheel disc to rotate towards the first direction until the lifting assembly rises to the first position, so that the filter element assembly is abutted to the top of the accommodating chamber. The utility model discloses the leakproofness preferred of filter element group spare and air outlet, it is better to the purifying performance of air.

Description

Air purifier

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to an air purifier.

Background

Along with air pollution is more and more serious, people to indoor air quality requirement higher and higher, the suspended particles in the air can be got rid of to air purifier, provides comparatively clean air for people.

At present, the air purifier mainly depends on a filter screen for filtering and purifying air. Specifically, the fan among the air purifier inhales the air, and through the absorption of filter screen to suspended particles, the air after will purifying is discharged. Wherein, the filter efficiency is directly influenced by the quality of the sealing effect of the filter screen and the air inlet of the fan. As time goes on, the filter screen becomes more and more dirty due to the accumulation of the micro-dust, and the purpose of air purification cannot be achieved, which requires the user to replace the filter screen regularly, and in order to replace the filter screen, the filter screen is set to be detachable in the prior art.

However, the filter screen with convenient dismounting operation is poor with the sealing opening of the fan air outlet, and with the filter screen with good sealing performance of the fan air outlet, dismounting operation is comparatively complicated, and user experience is not good.

SUMMERY OF THE UTILITY MODEL

The utility model provides an air purifier, the leakproofness preferred of filter element group spare and air outlet, purification performance to the air is better, and the dismouting is simple.

In a first aspect, a method of controlling an air purifier, the air purifier including a filter element assembly and a lifting device, the method comprising:

when a working instruction is received, judging whether the air purifier is in a state of waiting to work;

if so, judging whether the lifting device is in the first position, and controlling the lifting device to ascend to drive the filter element assembly to ascend until the lifting device ascends to the first position when the lifting device is not in the first position;

if not, judging whether the lifting device is at the second position, and controlling the lifting device to descend to the second position when the lifting device is not at the second position.

In the scheme, when the air purifier is in a standby working state, whether the lifting device is in the first position or not is judged, if not, the filter element assembly does not reach the position abutting against the top of the accommodating chamber, and the lifting device is controlled to drive the filter element assembly to ascend until the filter element assembly abuts against the top of the accommodating chamber; the top of filter element group spare and air purifier's the sealed muscle of air outlet etc. butt each other and closely laminate this moment, realize the sealed butt joint of filter element group spare and air outlet promptly, avoid some air not through the condition emergence that filters just flowed out, consequently better to the air purification performance.

If air purifier is not in and treats operating condition, judge whether elevating gear is in the second position, if no, then elevating gear descends to the second position, to the filter element group spare not on elevating gear's the condition, can place filter element group spare on elevating gear as required, to the condition that filter element group spare was placed on elevating gear, can make filter element group spare along with elevating gear descend to initial position.

In one possible embodiment, determining whether the air purifier is in a standby state includes:

judge whether filter element group spare is in the state of predetermineeing, predetermine the state and include: the filter element assembly is arranged on the lifting device; or the filter element assembly is arranged on the lifting device, and the air purifier is provided with a door plate;

if so, determining that the air purifier is in a standby working state;

if not, determining that the air purifier is not in a standby working state.

By the arrangement, as long as the filter element assembly is arranged on the lifting device, the air purifier is considered to have a working condition regardless of the existence of the door plate; and when the filter element component is not arranged on the lifting device, the air purifier is considered to have no working condition.

Or, if the filter element assembly is arranged on the lifting device and the air purifier is provided with the door plate, the air purifier is considered to have a working condition;

and filter element group spare is not on elevating gear, or air purifier does not set up the door plant, in this two conditions, as long as satisfy any one and just think air purifier does not possess operating condition.

In one possible embodiment, determining whether the lifting device is in the first position includes:

acquiring first position information of the lifting device, and judging whether the lifting device is at a first position according to the first position information, wherein the first position information is used for indicating whether the lifting device is at the first position;

judging whether the lifting device is at the second position or not, including:

and acquiring second position information of the lifting device, and judging whether the lifting device is at the second position according to the second position information, wherein the second position information is used for indicating whether the lifting device is at the second position.

When the position of the filter element component is indirectly judged according to the lifting device, the component for detecting the position can be omitted on the filter element component, so that the filter element component is convenient to generalize.

In one possible embodiment, obtaining the first position information of the lifting device includes:

acquiring a first signal sent by a first measuring device, and acquiring first position information of a lifting device according to the first signal, wherein the first measuring device is used for measuring the position of the lifting device in the lifting process;

acquiring second position information of the lifting device, comprising:

and acquiring a second signal sent by a second measuring device, and acquiring second position information of the lifting device according to the second signal, wherein the second measuring device is used for measuring the position of the lifting device in the descending process.

By means of the arrangement, the position information of the lifting device can be obtained through the first measuring device and the second measuring device.

In one possible embodiment, if the lifting device is in the first position, the method further comprises: controlling the air purifier to enter a working state; if the lifting device is at the second position, the method further comprises: and controlling the air purifier to enter a shutdown state.

Set up like this, rise the filter element group spare with air purifier's air outlet when the position that offsets such as sealed muscle, start work promptly, when descending initial position with the filter element group spare, stop the operation of clarifier.

In one possible embodiment, controlling the lifting device to lift drives the filter element assembly to lift comprises:

sending a first instruction to the lifting device, wherein the first instruction is used for indicating the lifting device to ascend, and the lifting device drives the filter element assembly to ascend when ascending;

in the ascending process of the lifting device, third position information of the lifting device is obtained, when the third position information is used for indicating the lifting device to ascend to the first position, a second instruction is sent to the lifting device, and the second instruction is used for indicating the lifting device to stop ascending;

controlling the lifting device to descend to a second position, comprising:

sending a third instruction to the lifting device, wherein the third instruction is used for indicating the lifting device to descend;

and in the descending process of the lifting device, obtaining fourth position information of the lifting device, and sending a fourth instruction to the lifting device when the fourth position information is used for indicating the lifting device to descend to the second position, wherein the fourth instruction is used for indicating the lifting device to stop descending.

Like this at the in-process that elevating gear rose, if elevating gear rose to the first position, when the sealed muscle of air purifier's air outlet etc. offset corresponding to the top of filter element group spare, stopped the continuation of filter element group spare to rise. And in the process of descending the lifting device, if the lifting device descends to the first position, the filter element component corresponding to the filter element component is already lowered to the initial lowest position, and the filter element component is stopped from continuously descending.

In one possible embodiment, obtaining the third position information of the lifting device includes:

acquiring a third signal sent by a first measuring device, and acquiring third position information of the lifting device according to the third signal, wherein the first measuring device is used for measuring the position of the lifting device in the lifting process;

acquiring fourth position information of the lifting device, including:

and acquiring a fourth signal sent by a second measuring device, and acquiring fourth position information of the lifting device according to the fourth signal, wherein the second measuring device is used for measuring the position of the lifting device in the descending process.

In one possible embodiment, if the air purifier is not in a standby state, the method further comprises:

and sending a fifth instruction to the prompting device, wherein the fifth instruction is used for indicating the prompting device to output prompting information, and the prompting information comprises information that the filter element assembly is not arranged on the lifting device, and/or information that the air purifier is not provided with a door plate.

If the filter element group spare is not arranged the holding in on elevating gear, and/or, air purifier does not set up the door plant and can to suggestion device output prompt message, and the operating personnel of being convenient for notices this problem.

In a second aspect, the present invention provides an air purifier, the air purifier includes a housing having an accommodating chamber and a filter element assembly disposed in the housing and including a lifting device, a controller and a detachable unit, the lifting device, the controller and the filter element assembly are disposed in the housing, the controller is connected to the lifting device, and the controller is used for executing the method.

In a third aspect, the utility model provides an air purifier, which comprises a shell with an accommodating chamber, a lifting device, a controller and a detachable filter element assembly, wherein the lifting device, the controller and the detachable filter element assembly are arranged in the shell, the lifting device comprises a rotatable wheel disc, a power output part and a lifting assembly, the power output part is used for driving the wheel disc to rotate, the lifting assembly ascends or descends when the wheel disc rotates, the controller is connected with the power output part,

the controller is used for judging whether the air purifier is in a state of waiting to work or not when receiving the working instruction;

the controller is further used for judging whether the lifting device is located at a first position or not when the air purifier is determined to be in a standby working state, and controlling the wheel disc to rotate towards a first direction through the power output part until the lifting assembly rises to the first position when the lifting assembly is not located at the first position, so that the filter element assembly is abutted against the top of the accommodating chamber;

the controller is also used for judging whether the lifting device is at the second position or not when determining that the air purifier is not in the state of waiting to work, and when the lifting assembly is not at the second position, the wheel disc is controlled to rotate towards the second direction through the power output part until the lifting assembly is lowered to the second position.

In the scheme, when the air purifier is in a standby working state, the controller judges whether the lifting device is at a first position, if not, the filter element assembly does not reach a position abutting against the top of the accommodating chamber, and the wheel disc is controlled to rotate towards a first direction through the power output piece, so that the lifting assembly drives the filter element assembly to ascend until the filter element assembly abuts against the top of the accommodating chamber; the top of filter element group spare and the top of accommodation chamber are like mutual butt and the inseparable laminating of sealed muscle of air outlet department this moment, realize the sealed butt joint of filter element group spare and air outlet promptly, avoid some air not to take place through the condition that filters just outflow, consequently better to the air purification performance.

If air purifier is not in and treats operating condition, the controller judges whether elevating gear is in the second position, if not, then crosses power take off control wheel dish and rotates towards the second direction, drops to the second position until the elevating gear subassembly, to the condition that filter element group spare is not on elevating gear, can place filter element group spare on elevating gear as required, places the condition on elevating gear to filter element group spare, can make filter element group spare along with elevating gear drop to initial position.

In a possible implementation mode, an opening for the filter element assembly to enter and exit is formed in the shell, a first detector is arranged on the inner wall of the accommodating cavity, a second detector is arranged on the shell, the controller is further electrically connected with the first detector and the second detector respectively, the first detector is used for detecting whether the filter element assembly is located in the accommodating cavity, and the second detector is used for detecting whether a door plate is arranged on the opening; wherein

The controller is specifically used for judging whether filter element group spare is in the preset state according to first detector and second detector, and the preset state includes: the filter element assembly is arranged on the lifting device; or the filter element assembly is arranged on the lifting device, and the air purifier is provided with a door plate;

if so, determining that the air purifier is in a standby working state;

if not, determining that the air purifier is not in a standby working state.

In a possible embodiment, the lifting device further comprises: the first measuring component is used for measuring the position of the lifting device in the lifting process, and the second measuring component is used for measuring the position of the lifting device in the descending process;

the controller is further specifically used for acquiring a first signal sent by the first measuring assembly and acquiring first position information of the lifting assembly according to the first signal, wherein the first position information is used for indicating whether the lifting assembly is located at a first position;

the controller is further specifically configured to acquire a second signal sent by the second measurement component, and acquire second position information of the lifting component according to the second signal, where the second position information is used to indicate whether the lifting component is located at a second position.

When the controller indirectly judges the position of the filter element component according to the position information of the lifting device, the component for detecting the position can be omitted on the filter element component, so that the filter element component is convenient to generalize.

In a possible embodiment, the controller is further configured to control the air purifier to enter the working state if the lifting device is in the first position; if the lifting device is in the second position, the air purifier is controlled to enter a shutdown state.

Set up like this, rise the filter element group spare with the top of accommodation chamber, for example when air purifier's the sealed muscle of air outlet etc. offset position, start work promptly, when descending the filter element group spare initial position, stop the operation of clarifier.

the controller is further specifically used for sending a first instruction to the power output part when the lifting assembly is not located at the first position, the first instruction is used for indicating the power output part to control the wheel disc to rotate towards the first direction, in the lifting process of the lifting assembly, a third signal sent by the first measuring assembly is obtained, third position information of the lifting assembly is obtained according to the third signal, when the third position information is used for indicating the lifting assembly and rises to the first position, a second instruction is sent to the power output part, and the second instruction is used for indicating the power output part to stop working;

the controller is further specifically used for sending a third instruction to the power output part when the lifting assembly is not located at the second position, the third instruction is used for indicating the power output part to control the wheel disc to rotate towards the second direction, in the descending process of the lifting assembly, fourth position information of the lifting assembly is obtained according to a fourth signal sent by the second measuring device, when the fourth position information is used for indicating the lifting assembly to descend to the second position, a fourth instruction is sent to the power output part, and the fourth instruction is used for indicating the power output part to stop working.

Like this at the in-process that elevating gear rose, the controller rose the primary importance at elevating gear, when the top that corresponds to filter element group spare and air purifier's air outlet sealing rib etc. offset, stopped the continuation of filter element group spare to rise. During the lowering of the lifting device, the controller stops the continued lowering of the filter element assembly corresponding to the filter element assembly having been lowered to the initial lowest position as the lifting device is lowered to the first position.

In one possible embodiment, the air purifier further comprises a prompting device, and the prompting device is electrically connected with the controller;

the controller is further used for sending a fifth instruction to the prompting device when the filter screen assembly is not arranged in the accommodating cavity or the door plate is not arranged at the opening on the shell, the fifth instruction is used for indicating the prompting device to output prompting information, the prompting information comprises information that the filter element assembly is not arranged in the accommodating cavity, and/or the information that the door plate is not arranged at the opening on the shell

If the holding is not arranged in on elevating gear to the filter element group spare, and/or, air purifier does not set up the door plant, and the controller can indicate that suggestion device outputs prompt information, and the operating personnel of being convenient for notices this problem.

In a possible embodiment, the first measuring assembly and the second measuring assembly are arranged on the lifting device.

The filter element component is a consumable part and needs to be frequently replaced along with the increase of the service life, and the first measuring component and the second measuring component are arranged on the lifting device, so that when the filter element component is replaced, the first measuring component and the second measuring component do not need to be replaced, and the maintenance cost can be reduced.

In one possible embodiment, the first and second measuring assemblies are: at least one of a displacement sensor, a proximity switch, or an infrared detection sensor.

The detection process is simple and easy to realize due to the arrangement.

The first detector and/or the second detector is a proximity switch.

The first detector comprises a first Hall proximity switch and a first magnet matched with the first Hall proximity switch, the first Hall proximity switch is arranged on one of the inner wall of the accommodating chamber and the filter element assembly, and the first magnet is arranged on the other one of the inner wall of the accommodating chamber and the filter element assembly;

the second detector comprises a second Hall proximity switch and a second magnet matched with the second Hall proximity switch, the second Hall proximity switch is arranged on one of the shell and the door plate, and the first magnet is arranged on the other one of the shell and the door plate.

Drawings

Fig. 1 is a schematic structural diagram of an air purifier in a control method of the air purifier according to an embodiment of the present invention;

FIG. 2 is a side cross-sectional view of FIG. 1;

fig. 3 is a flowchart of a control method of an air purifier according to an embodiment of the present invention;

fig. 4 is a flowchart illustrating a method for controlling an air purifier according to a first embodiment of the present invention to determine whether the air purifier is in a standby state;

fig. 5 is an exploded view of a lifting device in an air purifier according to a second embodiment of the present invention;

fig. 6 is an exploded view of another angle of the lifting device in the air purifier according to the second embodiment of the present invention;

fig. 7 is a perspective view of a lifting device in an air purifier provided in the second embodiment of the present invention;

fig. 8 is a sectional view of a lifting device in an air purifier according to a second embodiment of the present invention;

fig. 9 is a cross-sectional view of an air purifier according to a second embodiment of the present invention;

fig. 10 is a schematic perspective view of an air purifier according to an embodiment of the present invention.

Description of reference numerals:

100. 100 a-a lifting device; 1 a-a base; 2 a-a lifting mechanism; 6 a-upper cover; 7 a-bottom cover; 21 a-a wheel; 22 a-a worm; 23-a lifting screw; 24-a motor; 25 a-power take-off; 26 a-a lifting assembly; 27 a-a first detector; 28 a-a second detector; 41-a first housing; 42-a second housing; 43-avoiding holes; 44-an extension; 53 a-lifting seat; 111-a first rim; 121-a second rim; 131 a-a first limit switch; 132 a-a second limit switch; 231-a carrier; 200. 200 a-an air purifier; 300. 300 a-a housing; 400. 400 a-a filter element assembly; 301. 301 a-air outlet; 302. 302 a-the top of the containment chamber; 500. 500 a-door panel.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

Fig. 1 is a schematic structural diagram of an air purifier in a control method of an air purifier according to an embodiment of the present invention, and fig. 2 is a side sectional view of fig. 1, as shown in fig. 1 and 2, the control method of the air purifier of this embodiment is applied to an air purifier described below, the air purifier 200 includes a filter element assembly 400 and a lifting device 100, and the filter element assembly 400 is disposed on the lifting device 100.

Further, the air purifier further includes a housing 300 having an accommodating chamber, the lifting device 100 is disposed in the accommodating chamber, an opening for the filter element assembly 400 to enter and exit the accommodating chamber is formed on a side wall of the housing 300, and the door panel 500 is used for closing the opening. In casing 300, the top 302 of accommodation chamber still is equipped with air outlet 301 and the sealed muscle of air outlet, and when filter element subassembly 400 was installed in the accommodation chamber completely, the bottom of filter element subassembly 400 bore on the accommodation chamber bottom, and the top of filter element subassembly 400 is just to air outlet 301, and the top of filter element subassembly 400 will keep encapsulated situation with the sealed muscle of air outlet that sets up at the accommodation chamber top. In order to achieve the above object, the present embodiment provides a control method of an air purifier, which can raise the filter element assembly 400 when the filter element assembly 400 is located on the lifting device 100, and since the top of the filter element assembly 400 faces the air outlet 301, when the filter element assembly 400 is gradually raised, so that the top of the filter element assembly 400 and the top 302 of the accommodating chamber, such as an air outlet sealing rib, are closely attached and abutted to each other, filtered air from the filter element assembly 400 is discharged out of the air purifier 200 through the air outlet 301.

Fig. 3 is a flowchart of a control method of an air purifier according to an embodiment of the present invention, as shown in fig. 3, the control method of the air purifier of this embodiment includes:

s10, judging whether the air purifier is in a standby working state or not when the working instruction is received;

receiving work order here specifically means, under the normal circular telegram's of air purifier circumstances, and guaranteeing that filter element group spare is located the holding cavity, and/or under the prerequisite that the door plant was closed, the normal instruction of the expression air purifier state that air purifier sent under being in normal condition promptly.

And S20, if yes, judging whether the lifting device is at the first position, and controlling the lifting device to ascend to drive the filter element assembly to ascend until the lifting device ascends to the first position when the lifting device is not at the first position.

The first position of the lifting device corresponds to the highest position of the filter element assembly, namely the position where the top end of the filter element assembly is abutted with the top of the accommodating chamber, such as a sealing convex rib of an air outlet. The lifting device is not in the first position, which means that the filter element assembly and the top of the containing chamber are in an interval state and are not sealed, and the lifting device can be controlled to drive the filter element assembly to ascend until the lifting device ascends to the first position.

In the step, when the air purifier is in a standby working state, whether the lifting device is in a first position or not is judged, if not, the filter element assembly does not reach a position abutting against the top of the accommodating chamber, and the lifting device is controlled to drive the filter element assembly to ascend until the filter element assembly abuts against the top of the accommodating chamber; the top of filter element group spare and air purifier's the sealed muscle of air outlet etc. butt each other and closely laminate this moment, realize the sealed butt joint of filter element group spare and air outlet promptly, avoid some air not through the condition emergence that filters just flowed out, consequently better to the air purification performance.

And S30, if not, judging whether the lifting device is at the second position, and if not, controlling the lifting device to descend to the second position.

The second position of the lifting device corresponds to the lowest position of the filter element assembly, namely the position where the top end of the filter element assembly is farthest away from the top of the accommodating chamber, such as a sealing convex rib of the air outlet. The absence of the lifting device in the second position represents the filter element assembly not being lowered to the lowermost position. The lifting device can be controlled to descend to the second position, so that the filter element assembly descends to the lowest position.

In other words, if air purifier is not in waiting operating condition, judge whether elevating gear is in the second position, if no, then elevating gear descends to the second position, to the condition that filter element group spare is not on elevating gear, can place filter element group spare on elevating gear as required, to the condition that filter element group spare is placed on elevating gear, can make filter element group spare along with elevating gear descend to initial position.

Fig. 4 is a flowchart illustrating a method for controlling an air purifier according to an embodiment of the present invention, wherein the step S10 is to determine whether the air purifier is in a standby state, and the step includes:

s101, judging whether the filter element assembly is in a preset state or not, wherein the preset state comprises the following steps: the filter element assembly is arranged on the lifting device; or, the filter element assembly is arranged on the lifting device, and the air purifier is provided with a door plate.

Filter element group spare sets up on elevating gear, installs filter element group spare among the air purifier promptly, and air purifier is provided with the door plant, and the door plant is in the closed condition promptly, and air purifier casing is in airtight state.

S102, in the judgment, if yes, determining that the air purifier is in a standby working state;

in the above determination, if it is determined that the filter element assembly is installed on the lifting device, the air purifier is determined to have a condition for operating regardless of the presence of the door panel.

Or, can also be filter element group spare on elevating gear to air purifier is provided with the door plant, and air purifier possesses the condition that can work.

S103, in the judgment, if not, the air purifier is determined not to be in the standby working state.

Optionally, in step S20, determining whether the lifting device is located at the first position includes:

acquiring first position information of the lifting device, and judging whether the lifting device is at a first position according to the first position information, wherein the first position information is used for indicating whether the lifting device is at the first position.

Wherein the first position information may be implemented by a sensor disposed within the lifting assembly or the receiving chamber.

Optionally, judging whether the lifting device is located at the second position includes:

acquiring second position information of the lifting device, comprising:

In one possible embodiment, if the lifting device is in the first position, the method further comprises: controlling the air purifier to enter a working state; if the lifting device is at the second position, the method further comprises: and controlling the air purifier to enter a shutdown state. Set up like this, rise the filter element group spare with air purifier's air outlet when the position that offsets such as sealed muscle, start work promptly, when descending initial position with the filter element group spare, stop the operation of clarifier.

In the embodiment of the present invention, in step S20, the lifting device is controlled to drive the filter element assembly to ascend, which specifically includes:

in the embodiment of the present application, in step S30, the controlling the lifting device to descend to the second position specifically includes:

Optionally, obtaining third position information of the lifting device includes:

further, acquiring fourth position information of the lifting device includes:

By means of the arrangement, the position information of the lifting device can be obtained through the first measuring device and the second measuring device. First measuring component and second measuring component set up on elevating gear, and first measuring component and second measuring component are displacement sensor, proximity switch or infrared detection sensor in at least one.

In step S103, in a possible implementation, if the air purifier is not in the standby state, it represents that the air purifier is in an abnormal state, so the method further includes:

In the control method of the air purifier of the embodiment, the air purifier comprises a filter element component and a lifting device, and the method comprises the following steps: when a working instruction is received, judging whether the air purifier is in a state of waiting to work; if so, judging whether the lifting device is in the first position, and controlling the lifting device to ascend to drive the filter element assembly to ascend until the lifting device ascends to the first position when the lifting device is not in the first position; if not, judging whether the lifting device is at the second position, and controlling the lifting device to descend to the second position when the lifting device is not at the second position. In the scheme, when the air purifier is in a standby working state, whether the lifting device is in the first position or not is judged, if not, the filter element assembly does not reach the position abutting against the top of the accommodating chamber, and the lifting device is controlled to drive the filter element assembly to ascend until the filter element assembly abuts against the top of the accommodating chamber; the top of filter element group spare and air purifier's the sealed muscle of air outlet etc. butt each other and closely laminate this moment, realize the sealed butt joint of filter element group spare and air outlet promptly, avoid some air not through the condition emergence that filters just flowed out, consequently better to the air purification performance.

Example two

The embodiment provides an air purifier, which is controlled by the control method of the first embodiment,

the specific structure of the air cleaner of the present embodiment will be briefly described below. Fig. 5 is an explosion diagram of the lifting device in the air purifier provided by embodiment two, fig. 6 is an explosion diagram of another angle of the lifting device in the air purifier provided by embodiment two, fig. 7 is a perspective diagram of the lifting device in the air purifier provided by embodiment two, fig. 8 is a cross-sectional view of the lifting device in the air purifier provided by embodiment two, fig. 9 is a cross-sectional view of the air purifier provided by embodiment two, fig. 10 is a three-dimensional structure schematic diagram of the air purifier provided by embodiment two. As shown in fig. 5 to 10, the air cleaner 200a of the present embodiment includes a housing 300a having an accommodating chamber, and a lifting device 100a, a controller and a filter element assembly 400a detachably disposed in the housing 300a, the lifting device 100a includes a rotatable wheel disc 21a, a power output element 25a for driving the wheel disc 21a to rotate, and a lifting assembly 26a, the lifting assembly 26a ascends or descends when the wheel disc 21a rotates, and the controller is connected to the power output element 25 a.

The lifting device 100a and the controller are arranged in the accommodating chamber, and the lifting device 100a comprises a base 1a, a lifting mechanism 2a and an upper cover 6a arranged on the top of the base 1 a; the lifting mechanism 2a comprises a rotatable wheel disc 21a, a power output piece 25a for driving the wheel disc 21a to rotate, and a lifting assembly 26a, wherein the lifting assembly 26a passes through the upper cover 6a to ascend or descend when the wheel disc 21a rotates; a first limit switch 131a (first measuring unit) is provided on either side of the upper cover 6a and the lifting unit 26a facing each other, and the controller is electrically connected to the first limit switch 131a, and further, the controller may be provided in a recess in the back surface of the base 1 a.

Specifically, the lifting device 100a may be disposed at the bottom of the accommodating chamber, and the filter element assembly 400a may be supported at the top end of the lifting device 100a, so that when the lifting assembly 26a is lifted or lowered, the filter element assembly 400a is driven to be lifted or lowered. The first limit switch 131a may be a proximity switch, and when the first limit switch 131a is disposed on one surface of the upper cover 6a and the lifting assembly 26a opposite to each other, a metal member is disposed on the other surface of the upper cover 6a and the lifting assembly 26a opposite to each other, so as to facilitate measurement of the proximity switch.

The controller is used for judging whether the air purifier 200a is in a standby working state or not when receiving a working instruction;

the controller is further configured to determine whether the lifting device 100a is located at the first position when it is determined that the air purifier 200a is in the standby state, and when the lifting assembly 26a is not located at the first position, control the wheel disc 21a to rotate in the first direction through the power output element 25a until the lifting assembly 26a rises to the first position, so that the filter element assembly 400a abuts against the top 302a of the accommodating chamber;

the controller is further configured to determine whether the lifting device 100a is in the second position when it is determined that the air cleaner 200a is not in the standby state, and control the wheel disc 21a to rotate in the second direction through the power output element 25a until the lifting device 26a descends to the second position when the lifting device 26a is not in the second position.

In the above scheme, when the air purifier 200a is in a standby state, the controller determines whether the lifting device 100a is in the first position, if not, the filter element assembly 400a does not reach a position abutting against the top 302a of the accommodating chamber, and the power output element 25a controls the rotary disc 21a to rotate towards the first direction, so that the lifting device 26a drives the filter element assembly 400a to rise until abutting against the top 302a of the accommodating chamber; at this moment, the top end of the filter element assembly 400a and the top 302a of the accommodating cavity are mutually abutted and tightly attached like a sealing rib and the like at the air outlet, so that the filter element assembly 400a and the air outlet are hermetically butted, the condition that partial air flows out without being filtered is avoided, and the air purifying performance is better.

If the air purifier 200a is not in the standby state, the controller determines whether the lifting device 100a is in the second position, if not, the power output element 25a controls the wheel disc 21a to rotate towards the second direction until 2a descends to the second position, for the case that the filter element assembly 400a is not on the lifting device 100a, the filter element assembly 400a can be placed on the lifting device 100a as required, and for the case that the filter element assembly 400a is placed on the lifting device 100a, the filter element assembly 400a can descend to the initial position along with the lifting device 100 a.

In a possible embodiment, an opening for the filter element assembly 400a to enter and exit is provided on the housing 300a, a first detector 27a is provided on the inner wall of the accommodating chamber, a second detector 28a is provided on the housing 300a, the controller is further electrically connected to the first detector 27a and the second detector 28a, respectively, the first detector 27a is used for detecting whether the filter element assembly 400a is located in the accommodating chamber, and the second detector 28a is used for detecting whether the door panel 500a is located on the opening; in which case the first detector 27a and/or the second detector 28a are proximity switches.

The first detector 27a includes a first hall proximity switch disposed on one of the inner wall of the accommodating chamber and the filter element assembly 400a, and a first magnet matched therewith disposed on the other thereof;

the second detector 28a includes a second hall proximity switch disposed on one of the housing 300a and the door panel 500a, and a second magnet matched therewith, and the first magnet is disposed on the other one thereof

The controller is specifically configured to determine whether the filter element assembly 400a is in a preset state according to the first detector 27a and the second detector 28a, where the preset state includes: the filter element assembly 400a is disposed on the lifting device 100 a; alternatively, the filter cartridge assembly 400a is provided on the lifting device 100a, and the air cleaner 200a is provided with the door panel 500 a;

if yes, determining that the air purifier 200a is in a standby working state;

if not, it is determined that the air purifier 200a is not in the standby state.

So configured, as long as the filter cartridge assembly 400a is disposed on the lifting device 100a, the air purifier 200a is considered to have a condition in which it can operate regardless of the presence or absence of the door panel 500 a; when the filter cartridge assembly 400a is not disposed on the lifting device 100a, the air purifier 200a is considered to have no working condition.

Alternatively, if the filter element assembly 400a is mounted on the lifting device 100a and the air cleaner 200a is provided with the door panel 500a, it is considered that the air cleaner 200a has a condition to be operated;

and the filter cartridge assembly 400a is not provided on the lifting device 100a or the air cleaner 200a is not provided with the door panel 500a, and of these two conditions, the air cleaner 200a is considered to have no operating condition as long as either one is satisfied.

In a possible embodiment, the lifting device 100a further comprises: a first measuring unit (e.g., a first limit switch 131a) for measuring a position of the lifting device 100a during the lifting process, a second measuring unit (e.g., a second limit switch 132a) for measuring a position of the lifting device 100a during the lowering process; the first measuring component and the second measuring component are as follows: at least one of a displacement sensor, a proximity switch, or an infrared detection sensor. And they are all provided on the elevating device 100 a.

The controller is further specifically configured to acquire a first signal sent by the first measurement component (for example), and acquire first position information of the lifting device according to the first signal, where the first position information is used to indicate whether the lifting device is at a first position;

the controller is further specifically configured to acquire a second signal sent by the second measurement component, and acquire second position information of the lifting component 26a according to the second signal, where the second position information is used to indicate whether the lifting component 26a is located at the second position.

When the controller indirectly judges the position of the filter element assembly 400a according to the position information of the elevating device 100a, an assembly for detecting the position may not be provided on the filter element assembly 400a, which is convenient for generalization of the filter element assembly 400 a.

In one possible embodiment, the controller is further configured to control the air purifier 200a to enter the working state if the lifting device 100a is in the first position; if the lifting device 100a is in the second position, the air purifier 200a is controlled to enter the shutdown state.

With this arrangement, when the filter element assembly 400a is raised to a position against the top 302a of the accommodating chamber, for example, an air outlet sealing rib of the air cleaner 200a, the operation is started, and when the filter element assembly 400a is lowered to the initial position, the operation of the cleaner is stopped.

In a possible embodiment, the lifting device 100a further comprises: a first measuring component for measuring the position of the lifting device 100a in the lifting process, and a second measuring component for measuring the position of the lifting device 100a in the lowering process;

the controller is further specifically configured to send a first instruction to the power output element 25a when the lifting assembly 26a is not located at the first position, where the first instruction is used to instruct the power output element 25a to control the wheel disc 21a to rotate in the first direction, acquire a third signal sent by the first measurement assembly during the lifting process of the lifting assembly 26a, acquire third position information of the lifting assembly 26a according to the third signal, and send a second instruction to the power output element 25a when the third position information is used to instruct the lifting assembly 26a and lift to the first position, where the second instruction is used to instruct the power output element 25a to stop working;

the controller is further specifically configured to send a third instruction to the power output element 25a when the lifting assembly 26a is not located at the second position, where the third instruction is used to instruct the power output element 25a to control the wheel disc to rotate in the second direction, and in a descending process of the lifting assembly 26a, fourth position information of the lifting assembly 26a is obtained according to a fourth signal sent by the second measuring device, and when the fourth position information is used to instruct the lifting assembly 26a to descend to the second position, a fourth instruction is sent to the power output element 25a, and the fourth instruction is used to instruct the power output element 25a to stop working.

In this way, in the process of the lifting device 100a lifting, when the lifting device 100a is lifted to the first position and the top of the filter element assembly 400a is abutted against the air outlet sealing rib of the air cleaner 200a, the controller stops the filter element assembly 400a from continuously lifting. During the lowering of the lifting device 100a, the controller stops the continued lowering of the filter element assembly 400a when the lifting device 100a is lowered to the first position, corresponding to the filter element assembly 400a having been lowered to the initial lowest position with the filter element assembly 400 a.

In one possible embodiment, air purifier 200a further includes a prompting device electrically connected to the controller;

the controller is further configured to send a fifth instruction to the prompting device when the filter screen assembly is not disposed in the accommodating chamber or the door panel 500a is not disposed in the opening of the housing 300a, where the fifth instruction is used to instruct the prompting device to output a prompting message, where the prompting message includes information that the filter element assembly 400a is not disposed in the accommodating chamber, and/or information that the door panel 500a is not disposed in the opening of the housing 300a

If filter element assembly 400a is not disposed on lifting device 100a and/or air purifier 200a is not provided with door panel 500a, the controller may prompt the prompting device to output prompt information to facilitate the operator to notice the problem.

In one possible embodiment, the first measuring assembly and the second measuring assembly are provided on the lifting device 100 a.

The filter element assembly 400a is a consumable part and needs to be frequently replaced as the service life increases, and by providing the first and second measuring assemblies on the lifting device 100a, the maintenance cost can be reduced without replacing the first and second measuring assemblies when the filter element assembly 400a is replaced.

The detection process is simple and easy to realize due to the arrangement.

The specific structure of the air cleaner of the present embodiment is described in detail below.

As shown in fig. 5 to 8, in the lifting device 100a of the present embodiment, the power output member 25a includes a worm 22a and a driving unit, such as a motor 24, the lifting assembly 26a is a lifting screw 23, the wheel disc 21a is fixed on the base 1a, the wheel disc 21a has a central hole 401, the lifting screw 23 is inserted into the central hole 401 and screwed with the central hole 401 through a transmission thread, and the lifting seat 53a can be supported at an end of the lifting screw 23; the outer circumferential surface of the wheel disc 21a is engaged with the worm 22a, and the motor 24 is used for driving the worm 22a to drive the wheel disc 21a to rotate, so that the lifting screw 23 is driven by the wheel disc 21a to move in the axial direction and drive the lifting seat 53a to ascend or descend.

When the lifting base 53a is lifted, the filter element assembly 400a is lifted, and the top end of the filter element assembly 400a and the wall of the groove or the sealing rib at the air outlet 301a are abutted against each other, that is, the filter element assembly 400a and the air outlet 301a are in sealed butt joint. Further, when the elevating base 53a is lowered, the filter element assembly 400a is lowered, and the tip of the filter element assembly 400a is separated from the outlet port 301a, thereby releasing the seal between the filter element assembly 400a and the outlet port 301 a.

Specifically, the lifting screw 23 is inserted into the central hole 401 and screwed into the central hole 401 through a transmission thread, specifically, an internal thread is provided in the central hole 401 of the wheel disc 21a, and the lifting screw 23 is provided with an external thread, so that when the lifting screw 23 is inserted into the central hole 401, the thread on the outer surface of the lifting screw 23 and the internal thread of the central hole 401 are in threaded fit with each other, and at this time, if the wheel disc 21a rotates and does not lift in the axial direction, the lifting screw 23 can lift along the axial direction of the central hole 401. The elevating base 53a is provided at the end of the elevating screw 23, so that the elevating base 53a can be driven to be elevated simultaneously when the elevating screw 23 is elevated in the axial direction thereof.

Illustratively, the driving unit is a motor 24, and the worm 22a and a motor shaft of the motor 24 are axially connected to each other, so that the motor 24 rotates the worm 22a, and the wheel disc 21a engaged with the worm 22a is also rotated, so that the lifting screw 23 in the central hole 401 is axially moved by the wheel disc 21a, thereby lifting or lowering the lifting base 53 a. In order to ensure that the elevation of the elevation base 53a is in the vertical direction, the rotation axis of the wheel disc 21a may be in the vertical direction.

Referring to fig. 5 and 6, the base 1a includes a first housing 41 and a second housing 42, the first housing 41 and the second housing 42 together define a mounting cavity for receiving the wheel disc 21a, the wheel disc 21a is rotatably mounted in the mounting cavity, and the first housing 41 is provided with a relief hole 43 for exposing the central hole 401. Installing rim plate 21a like this in the relative confined installation intracavity is favorable to the steady rotation of rim plate 21a to prevent that rim plate 21a from moving in the circumference, be provided with on the first casing 41 and dodge hole 43, so that lifting screw 23 passes this and dodges in hole 43 gets into centre bore 401, and closes with the internal thread of centre bore 401 soon.

Further, in order to better support the disk 21a, a first rim 111 is provided on a surface of the first case 41 opposite to the end surface of the disk 21a, and/or a second rim 121 is provided on a surface of the second case 42 opposite to the end surface of the disk 21a, and the end surface of the disk 21a is rotatably supported on the first rim 111 and/or the second rim 121.

Further, a second limit switch 132a is disposed on a surface of the first housing 41 close to the lifting seat 53 a. Thus, when the vertically movable base 53a is lowered to contact the first housing 41, it cannot be lowered any more. Furthermore, optionally, the drive unit and the worm 22a may also be arranged in a mounting chamber enclosed by the first housing 41 and the second housing 42.

In a possible embodiment, the end face of the wheel disc 21a is further provided with an extension 44 protruding in the axial direction of the wheel disc 21a, the central hole 401 is located in the extension 44, and the extension 44 is inserted into the avoiding hole 43. An internally threaded hole having the same inner diameter as the center hole 401 is also provided at the center of the extension 44. The external thread of the lifting screw 23 matches with the internal thread.

Optionally, the end of the lifting screw 23 facing away from the wheel disc 21a is further provided with a disc-shaped carrier 231, and the carrier 231 and the lifting seat 53a contact each other, so that the contact area between the lifting screw 23 and the lifting seat 53 can be increased. In addition, in order to avoid relative rotation between the lifting seat 53a and the bearing 231, a plug connection between the lifting seat 53a and the bearing 231 may be selected.

As shown in fig. 9 and 10, the top of the accommodating chamber is further provided with an air outlet 301a, and the filter element assembly 400a is pressed against the top 302a of the accommodating chamber or away from the top 302a of the accommodating chamber along with the lifting of the lifting seat 53 a.

In addition, as shown in fig. 5-8, the upper cover 6a is located above the lifting assembly 2a and fixed on the base 1a, and the top of the upper cover 6a is spaced from the bottom of the base 1a by a predetermined distance, so that when the lifting seat 53a is lifted to the highest position, the lifting seat 53a abuts against the opening edge of the upper cover 6 a. Thus, the upper cover 6a can limit the upward movement of the elevating base 53 a.

Optionally, the middle of the lifting seat 53a protrudes in a direction away from the lifting screw 23 to form a protrusion, and the protrusion can be exposed out of the upper cover 6a from the opening. This may carry the filter element assembly 400a on the boss. In addition, it is desirable that the bosses be positioned at the highest position so that the top surfaces of the bosses are flush with the upper surface of the upper lid 6a, so that the upper surface of the upper lid 6a can be used to assist in supporting the filter element assembly 400 a.

Further, since the ascending/descending base 53a is restricted by the upper cover 6a when it ascends to contact the upper cover 6a and cannot ascend any more, the first limit switch 131a may be selectively provided on the surface of the upper cover 6a near the ascending/descending base 53 a. When the first limit switch 131a receives the approach signal, it is considered that the elevating base 53a has already risen to the highest point at this time, and it may be considered that the motor stops operating.

In addition, it is possible to make the air cleaner 200a include a bottom cover 7a, the bottom cover 7a being located at the lower side of the base 1a and detachably fixed to the upper cover 6 a.

In this implementation, the air purifier executes the control method described in the first embodiment, and when the air purifier is in a standby state, it is determined whether the lifting device is in the first position, and if not, the filter element assembly does not reach a position abutting against the top of the accommodating chamber, and the lifting device is controlled to drive the filter element assembly to rise until the filter element assembly abuts against the top of the accommodating chamber; the top of filter element group spare and air purifier's the sealed muscle of air outlet etc. butt each other and closely laminate this moment, realize the sealed butt joint of filter element group spare and air outlet promptly, avoid some air not through the condition emergence that filters just flowed out, consequently better to the air purification performance.

EXAMPLE III

The embodiment provides an air purifier, the air purifier includes a housing having an accommodating chamber, a lifting device disposed in the housing, a controller, and a filter element assembly detachably disposed in the housing, the controller is connected to the lifting device, and the controller is configured to perform the method of the first embodiment. The specific structure of the air purifier and the like have been described in detail in the second embodiment, and the control method of the air purifier has been described in detail in the first embodiment, and will not be described again here.

Claims

1. An air purifier, the air purifier includes the body with the accommodation chamber and sets up in the body lifting gear, controller and removable filter element group spare that sets up in the body, the lifting gear includes rotatable rim plate (21a), is used for driving the rotatory power take off (25a) of rim plate (21a) and lifting unit (26a), lifting unit (26a) rises or descends when the rim plate (21a) rotates, the controller is connected with the power take off (25a), its characterized in that,

the controller is used for judging whether the air purifier is in a state of waiting to work or not when receiving a work instruction;

the controller is further used for judging whether the lifting device is located at a first position or not when the air purifier is determined to be in a standby working state, and controlling the wheel disc (21a) to rotate towards a first direction through the power output part (25a) when the lifting assembly (26a) is not located at the first position until the lifting assembly (26a) rises to the first position, so that the filter element assembly is abutted against the top (302a) of the accommodating chamber;

the controller is further used for judging whether the lifting device is located at a second position or not when the air purifier is determined not to be in the standby working state, and controlling the wheel disc (21a) to rotate towards a second direction through the power output part (25a) until the lifting assembly (26a) descends to the second position when the lifting assembly (26a) is not located at the second position.

2. The air purifier as claimed in claim 1, wherein the housing is provided with an opening for the filter element assembly to enter and exit, the inner wall of the accommodating chamber is provided with a first detector (27a), the housing is provided with a second detector (28a), the controller is further electrically connected with the first detector (27a) and the second detector (28a), respectively, the first detector (27a) is used for detecting whether the filter element assembly is located in the accommodating chamber, and the second detector (28a) is used for detecting whether a door panel is arranged on the opening; wherein

The controller is specifically configured to determine, based on the first detector (27a) and the second detector (28a), whether the filter element assembly is in a preset state, the preset state including: the filter element assembly is arranged on the lifting device; or the filter element assembly is arranged on the lifting device, and the air purifier is provided with a door plate;

if so, determining that the air purifier is in a standby working state;

if not, determining that the air purifier is not in a standby working state.

3. The air cleaner of claim 1, wherein the lifting device further comprises: the first measuring component is used for measuring the position of the lifting device in the ascending process, and the second measuring component is used for measuring the position of the lifting device in the descending process;

the controller is further specifically configured to acquire a first signal sent by the first measurement component, and acquire first position information of the lifting component (26a) according to the first signal, where the first position information is used to indicate whether the lifting component (26a) is at the first position;

the controller is further specifically configured to acquire a second signal sent by the second measurement component, and acquire second position information of the lifting component (26a) according to the second signal, where the second position information is used to indicate whether the lifting component (26a) is at the second position.

4. The air purifier of any one of claims 1-3, wherein the controller is further configured to control the air purifier to enter the operating state if the lifting device is in the first position; and if the lifting device is at the second position, controlling the air purifier to enter a shutdown state.

5. The air cleaner of claim 1, wherein the lifting device further comprises: the first measuring component is used for measuring the position of the lifting device in the ascending process, and the second measuring component is used for measuring the position of the lifting device in the descending process;

the controller is further specifically configured to send a first instruction to the power output element (25a) when the lifting assembly (26a) is not in the first position, the first instruction being used for instructing the power output element (25a) to control the wheel disc (21a) to rotate towards the first direction, acquire a third signal sent by the first measurement assembly during the lifting process of the lifting assembly (26a), acquire third position information of the lifting assembly (26a) according to the third signal, and send a second instruction to the power output element (25a) when the third position information is used for instructing the lifting assembly (26a) to lift to the first position, the second instruction being used for instructing the power output element (25a) to stop working;

the controller is further specifically configured to send a third instruction to the power output element (25a) when the lifting assembly (26a) is not in the second position, the third instruction being used for instructing the power output element (25a) to control the wheel disc (21a) to rotate towards the second direction, acquire fourth position information of the lifting assembly (26a) according to a fourth signal sent by the second measuring assembly during descending of the lifting assembly (26a), and send a fourth instruction to the power output element (25a) when the fourth position information is used for instructing the lifting assembly (26a) to descend to the second position, the fourth instruction being used for instructing the power output element (25a) to stop working.

6. The air purifier of claim 2, further comprising a prompting device electrically connected to the controller;

the controller is further used for sending a fifth instruction to the prompting device when the filter element assembly is not arranged in the accommodating cavity or the door plate is not arranged at the opening in the shell, the fifth instruction is used for indicating the prompting device to output prompting information, and the prompting information comprises information that the filter element assembly is not arranged in the accommodating cavity and/or information that the door plate is not arranged at the opening in the shell.

7. The air purifier of claim 3 or 5, wherein the first and second measuring assemblies are disposed on the lifting device.

8. The air purifier of claim 7, wherein the first and second measurement components are: at least one of a displacement sensor, a proximity switch, or an infrared detection sensor.

9. Air purifier according to claim 2, wherein the first detector (27a) and/or the second detector (28a) is a proximity switch.

10. The air purifier of claim 9,

the first detector (27a) comprises a first Hall proximity switch and a first magnet matched with the first Hall proximity switch, the first Hall proximity switch is arranged on one of the inner wall of the accommodating chamber and the filter element assembly, and the first magnet is arranged on the other one of the inner wall of the accommodating chamber and the filter element assembly;

the second detector (28a) comprises a second Hall proximity switch and a second magnet matched with the second Hall proximity switch, the second Hall proximity switch is arranged on one of the shell and the door panel, and the first magnet is arranged on the other one of the shell and the door panel.