KR102500527B1 - Apparatus for both humidification and air cleaning and method thereof - Google Patents

Abstract

The humidification cleaning device and its control method of the present invention are a wireless power transmitter formed on a base body equipped with an air clean module and transmitting a wireless power signal to a top cover assembly, and connected to the power transmitter of the wireless power transmitter to transmit power to the power transmitter A coil voltage sensing unit for detecting a coil voltage applied to the coil voltage and a control unit for setting a standby mode for the wireless power transmitter when the top cover assembly is separated and detecting foreign substances in response to the coil voltage, wherein the wireless power transmitter includes: When the top cover assembly is separated and the standby mode is set, it is recognized as a foreign matter detection mode, and the output voltage and frequency are varied to control the voltage applied to the power transmitter, so that the top cover assembly is separated. Foreign matter introduced into the position where the cover assembly is mounted is detected, and the present invention can improve efficiency reduction due to foreign matter and prevent energy waste.

Description

Humidification cleaning device and method {Apparatus for both humidification and air cleaning and method thereof}

The present invention relates to a humidifying cleaning device and a method therefor.

Conventional humidifiers are divided into a vibration type in which water is vaporized in a diaphragm and discharged into the air, and a natural evaporation type in which water is naturally evaporated in a humidifying filter.

The natural evaporative humidifier is a disc type humidifier in which a disc is rotated using a driving force and water is naturally evaporated from the surface of the disc in the air, and a humidification filter type humidifier in which water is naturally evaporated by air flowing from a humidifying medium wetted with water. Separated.

However, conventional humidifiers have a problem in that electrical accidents such as electric shock due to water occur as terminals for electrical contact are provided to supply power to the cover.

Accordingly, in recent years, a non-contact power supply device has been used in preparation for the risk of an electric accident.

However, in the case of non-contact power supply, when foreign substances are caught between the power supply or due to manufacturing process, the transmission side for power supply and the reception side become distant, and power supply is not performed normally, resulting in waste of energy and product There is a problem that causes malfunction of . In addition, when the transmission side for power supply and the reception side are too close, a problem in that overvoltage may occur.

Since the conventional device requires the user to directly check foreign substances, if the user fails to check this, it may lead to product problems, and when overvoltage is applied due to proximity, it is difficult to respond and damage to the product may occur. .

In the present invention, water can be supplied even while air is being discharged, a detachable top cover assembly can be mounted, and power is supplied from the base body to the top cover assembly in a non-contact manner while the top cover assembly is mounted. Its purpose is to provide an apparatus and its method.

In the humidification cleaning device according to an embodiment of the present invention, in the humidification cleaning device including an air clean module and an air wash module, the air wash module is disposed on top of a water tank and is detachably mounted from the water tank a top cover assembly, a wireless power transmitter formed on the base body equipped with the air clean module and transmitting a wireless power signal to the top cover assembly, and a coil connected to the power transmitter of the wireless power transmitter and applied to the power transmitter When the coil voltage sensing unit for detecting voltage and the top cover assembly are separated, a standby mode is set for the wireless power transmitter and a control unit for detecting foreign matter in response to the coil voltage, wherein the wireless power transmitter includes the top cover assembly. When the cover assembly is separated and the standby mode is set, it is recognized as a foreign matter detection mode, and the voltage applied to the power transmitter is controlled by varying the output voltage and frequency.

The wireless power transmitter is characterized in that, as the standby mode is set, a low voltage lower than that of the normal mode is applied as an output voltage.

The wireless power transmission unit is characterized in that the voltage applied to the power transmission unit is reduced by changing the duty.

The wireless power transmitter sets a frequency range and changes the frequency within the frequency range so that the voltage applied to the power transmitter is changed.

The wireless power transmitter may perform a ping operation by repeating a frequency change within the frequency range a predetermined number of times.

The control unit may calculate an average of the coil voltages sensed through the coil voltage detection unit, and detect foreign substances by comparing the average of the coil voltages with a set value.

The controller selects a peak value among the coil voltages sensed for each frequency changed by the wireless power transmitter, and calculates an average of the peak values for each cycle as the frequency changes are repeated.

In the control method of a humidifying cleaning device according to the present invention, in the control method of a humidifying cleaning device including a top cover assembly detachably mounted, the step of detecting whether the top cover assembly is mounted, the top cover assembly being separated setting the standby mode, recognizing it as a foreign matter detection mode, varying the output voltage and frequency of the wireless power transmitter for supplying power to the top cover assembly, applying power to the power transmitter provided in the wireless power transmitter and detecting a coil voltage corresponding to the coil voltage and detecting a foreign material in response to the coil voltage.

The method may further include setting a frequency range based on a resonant frequency when recognizing the foreign matter detection mode, and controlling a voltage applied to the power transmitter by changing a frequency within the frequency range.

The step of repeating the operation of changing the frequency within the frequency range a predetermined number of times is further included.

In the detecting of the foreign matter, the detected coil voltage is compared with a predetermined set value, and when the coil voltage is less than the normal set value, it is determined that the foreign material is located.

The foreign matter detection step may further include storing the coil voltage detected according to the frequency change, selecting a peak value among the coil voltages, and calculating an average of peak values for each time as the frequency change is repeated. and comparing the average value of the coil voltage with the set value.

The humidifying cleaning device and method of the present invention can operate the operation module of the top cover assembly by supplying power to the top cover assembly through wireless power transmission even when the top cover assembly with an embedded electric circuit is detachably mounted, , it has the effect of improving safety by eliminating the risk of electric shock and preventing the occurrence of electrical accidents.

The present invention can detect foreign substances introduced into a position where the top cover assembly is mounted.

The present invention can detect foreign matter in a state in which the top cover assembly is separated.

The present invention can improve efficiency reduction due to foreign substances and prevent energy waste.

The present invention can prevent product damage caused by foreign substances.

1 is a perspective view of a humidifying cleaning device according to a first embodiment of the present invention.
Figure 2 is an exploded perspective view of Figure 1;
Figure 3 is an exploded cross-sectional view of Figure 1;
FIG. 4 is a perspective view in which the top cover assembly is separated from the air wash module shown in FIG. 2;
5 is a reference diagram explaining a method of supplying power to the top cover assembly in the humidifying and cleaning device of the present invention.
6 is a block diagram briefly showing the control configuration of the humidifying and cleaning device of the present invention.
7 is a block diagram briefly illustrating a control configuration for power supply and communication of a humidifying and cleaning device.
8 is a schematic block diagram showing the configuration of a wireless power transmitter and a wireless power receiver for supplying power to the top cover assembly.
9 is a schematic diagram showing a circuit configuration according to wireless power transmission of the humidifying and cleaning device of the present invention.
10 is a reference diagram for explaining the mounting structure of the top cover assembly of the humidifying and cleaning device of the present invention.
11 is a diagram showing a voltage sensing circuit of a wireless power transmission unit of a humidifying and cleaning device of the present invention.
12 is a reference diagram for explaining the signal flow of the humidification and cleaning device of the present invention.
13 is a diagram comparing coil voltages detected by the wireless power transmission unit of the humidifying and cleaning device of the present invention.
14 is a graph of the coil voltage sensed by the wireless power transmitter of the humidifying and cleaning device of the present invention.
15 is a flowchart illustrating a control method of a humidifying and cleaning device according to the present invention.
16 is a flow chart illustrating a foreign matter detection method of the humidifying and cleaning device of the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification. In addition, the control unit and each unit of the present invention may be implemented with one or more processors or hardware devices.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a humidifying and cleaning device according to a first embodiment of the present invention, FIG. 2 is an exploded perspective view of FIG. 1 , and FIG. 3 is an exploded cross-sectional view of FIG. 1 .

The humidification cleaning device according to this embodiment includes an air clean module 100 and an air wash module 200 mounted on the upper side of the air clean module 100.

The air clean module 100 takes in external air, filters it, and supplies the filtered air to the air wash module 200. The air wash module 200 receives the filtered air, performs humidification to provide moisture, and discharges the humidified air to the outside.

The air wash module 200 includes a water tank 300 in which water is stored. The water tank 300 can be separated from the air clean module 100 when the air wash module 200 is separated. The air wash module 200 is mounted on the air clean module 100.

The user can separate the air wash module 200 from the air clean module 100 and clean the separated air wash module 200. The user may clean the inside of the air clean module 100 from which the air wash module 200 is separated. When the air wash module 200 is separated, the upper surface of the air clean module 100 is opened to the user.

The air clean module 100 includes a filter assembly 10 and can be cleaned after separating the filter assembly 10 from the base body 110 .

A user can supply water to the air wash module 200. A water supply passage 109 through which water can be supplied from the outside to the water tank 300 is formed in the air wash module 200 .

The water supply passage 109 is configured to be separated from the discharge passage 107 through which air is discharged. The water supply passage 109 is configured to supply water to the water tank at any time. For example, water may be supplied through the water supply passage even when the air wash module 200 is in operation. For example, even when the air wash module 200 is coupled to the air clean module 100, water can be supplied through the water supply passage. For example, even when the air wash module 200 is separated from the air clean module 100, water can be supplied through the water supply passage.

The air clean module 100 and the air wash module 200 are connected through an internal connection passage. Since the air wash module 200 is detachable, the connection passages are distributed in the air clean module 100 and the air wash module 200. When the air wash module 200 is mounted on the air clean module 100, the flow path of the air wash module 200 and the flow path of the air clean module 100 communicate with each other through the connection flow path.

Hereinafter, the air clean module 100 and the air wash module 200 will be described in more detail.

The air clean module 100 includes a base body 110, a filter assembly 10 disposed on the base body 110 to filter air, and a filter assembly 10 disposed on the base body 110 to flow air. It includes a blowing unit (20).

The air wash module 200 stores water for humidification, and is disposed in the water tank 300 detachably mounted on the air clean module 100, the water tank 300, and the inside of the water tank 300 A watering unit 400 disposed in the water tank and spraying water from the watering unit 400, and a humidifying medium 50 providing moisture to the flowing air and wetted by the water sprayed from the watering unit 400; A visual body 210 coupled to the water tank 300 and formed of a material that can see the inside, a discharge passage 107 detachably mounted on the visual body 210, through which air is discharged, and water is supplied. and a top cover assembly 230 in which a water supply passage 109 is formed.

In the air clean module 100, a suction passage 101, a filtration passage 102, a blowing passage 108, and a clean connection passage 104 are disposed. The air sucked through the suction passage 101 flows to the clean connection passage 104 via the filtering passage 102 and the blowing passage 108 .

In the air wash module 200, a humidification connection passage 105, a humidification passage 106, a discharge passage 107, and a water supply passage 109 are disposed.

The clean connection passage 104 of the air clean module 100 and the humidification connection passage 105 of the air wash module 200 are connected only when the air wash module 200 is mounted on the air clean module 100 .

Filtered air supplied through the humidification connection passage 105 of the air wash module 200 is discharged into the room through the humidification passage 106 and the discharge passage 107. The water supply passage 109 communicates with the humidification passage 106, but is manufactured in a structure capable of receiving only water without discharging air.

First, each configuration of the air clean module 100 will be described.

The base body 110 is composed of an upper body 120 and a lower body 130. The upper body 120 is stacked on the upper side of the lower body 130, and the upper body 120 and the lower body 130 are assembled.

Air flows into the base body 110.

A structure in which a suction passage 101, a filtration passage 102, and a blowing passage 108 are disposed in the lower body 130, and the suction passage 101, the filtration passage 102, and the blowing passage 108 are formed. are placed

A portion of the connection passage 103 is disposed in the upper body 120, and structures for guiding filtered air to the air wash module 200 and structures for holding the air wash module 200 are disposed. .

The base body 110 includes a lower body 130 forming an external shape and having a suction port 111 formed on a lower side thereof, and an upper body 120 forming an external shape and coupled to the upper side of the lower body 130 do.

The filter assembly 10 is detachably assembled from the base body 110 .

The filter assembly 10 provides a filtering passage 102 and filters external air. The filter assembly 10 has a structure that is detachable in a horizontal direction with respect to the base body 110 . The filter assembly 10 is disposed to cross the flow direction of the air flowing in the vertical direction. The filter assembly 10 slides in the horizontal direction and filters air flowing upward in the vertical direction. The filter assembly 10 is disposed horizontally and forms a filtering passage 102 in a vertical direction.

The filter assembly 10 may slide in a horizontal direction with respect to the base body 110 .

The filter assembly 10 is disposed inside the lower body 130 and detachably coupled to the filter housing 11 forming the filter passage 102 and the filter housing 11, and the filter passage ( and a filter 14 for filtering air passing through 102.

The lower side of the filter housing 12 communicates with the suction passage 101 and the upper side communicates with the blowing passage 108 . The air sucked through the suction passage 101 flows to the blowing passage 108 via the filtering passage 102 .

One side of the filter housing 12 is opened in a direction crossing the filter passage 102 . The filter 14 may be detachably coupled through the opening of the filter housing 12 . The opening surface of the filter housing 12 is formed in a lateral direction. The opening surface of the filter housing 12 is disposed on the outer surface of the lower body 130 . So, the filter 14 is inserted through the side of the lower body 130 and positioned inside the filter housing 12 . The filter 14 is disposed to cross the filtration passage 102 and filters air passing through the filtration passage 102 .

The filter 14 may be an electric dust collecting filter that collects foreign substances in the air by charging the applied power. The filter 14 may be formed of a material that collects foreign substances in the air through a filter medium. The filter 14 may have various structures. The rights of the present invention are not limited by the filtration method of the filter 14 or the filter medium of the filter.

The filtering passage 102 is disposed in the same direction as the main flow direction of the humidifying cleaning device. In this embodiment, the filtering passage 102 is arranged in a vertical direction, and allows air to flow in a direction opposite to gravity. That is, the main flow direction of the humidification and cleaning device is formed from the lower side to the upper side.

A blower unit 20 is disposed above the filter housing 12 .

An upper surface of the filter housing 12 is formed with an opening, and air passing through the filtering passage 102 flows into the blowing unit 20 .

The blowing unit 20 creates a flow of air. The blowing unit 20 is disposed inside the base body 110 and flows air from the lower side to the upper side.

The blowing unit 20 is composed of a blowing housing 150, a blowing motor 22 and a blowing fan 24. In this embodiment, the blowing motor 22 is disposed on the upper side, and the blowing fan 24 is disposed on the lower side. The motor shaft of the blowing motor 22 is installed downward, and is assembled with the blowing fan 24 .

The blower housing 150 is disposed inside the base body 110 . The blower housing 150 provides a flow path for flowing air. The blowing motor 22 and the blowing fan 24 are disposed in the blowing housing 150 .

The blower housing 150 is disposed above the filter assembly 10 and below the upper body 120 .

The blowing housing 150 forms a blowing passage 108 therein. The blowing fan 24 is disposed in the blowing passage 108 . The blowing passage 108 connects the filtering passage 102 and the clean connection passage 104.

The blowing fan 24 is a centrifugal fan, sucks in air from the lower side, and then discharges the air outward in the radial direction. The blowing fan 24 discharges air outward and upward in the radial direction. The blowing fan 24 is formed so that the outer end faces upward in the radial direction.

The blowing motor 22 is disposed above the blowing fan 24 to minimize contact with flowing air. The blowing motor 22 is installed while being wrapped by a blowing fan 24 . The blowing motor 22 is not located on the air passage by the blowing fan 24 and does not generate resistance with the air flowing by the blowing fan 24 .

The upper body 120 forms the outer shape of the base body 110, and is disposed inside the upper outer body 128 coupled to the lower body 130 and the upper outer body 128, and the water tank ( 300) is inserted, the upper inner body 140 providing the connection passage 103, the upper inner body 140 and the upper outer body 128 are coupled, and the air is guided to the water tank 300. It includes an air guide 170.

Since the upper body 120 separates the connection passage and the water tank insertion space, it is possible to minimize the inflow of water from the water tank 300 into the connection passage. Particularly, since the connection passage is partitioned through the upper inner body and disposed outside the space in which water is stored, it is possible to suppress water from flowing into the connection passage.

The upper inner body 140 is formed with an open top, and the water tank 300 is inserted therein. The upper inner body 140 forms a part of the clean connection passage 104 through which filtered air flows.

The upper inner body 140 is formed with an upper inlet 121 corresponding to the air wash inlet 31. The upper inlet 121 is not an essential component. It is sufficient if the shape of the upper body 120 exposes the air wash inlet 31 to the connection passage 103.

The air guide 170 guides the air supplied through the clean connection passage 104 to the upper inlet 121 . The air guide 170 gathers the air raised along the outside of the base body 110 to the inside. The air guide 170 changes the flow direction of air flowing from the lower side to the upper side. However, the air guide 170 converts the air flow direction and minimizes the air flow resistance by minimizing the angle.

The air guide 170 is formed to surround the outer side of the upper inner body 140 by 360 degrees. The air guide 170 guides air to the water tank 300 in all directions of 360 degrees. The air guide 170 collects the air guided along the outside of the lower body 130 inward and supplies it to the water tank 300. Through such a structure, a sufficient flow rate of air supplied to the water tank 300 can be secured.

Therefore, the air guide 170 includes a guide part 172 formed in the flow direction of air, and a conversion part 174 connected to the guide part 172 and changing the flow direction of the guided air.

Meanwhile, the outer visual body 214 is coupled to the upper side of the upper body 120 .

The outer visual body 214 is a component of the visual body 210, but is fixed to the upper body 120 in this embodiment. Unlike this embodiment, the outer visual body 214 may be fixed to the air wash module 200. Unlike the present embodiment, the outer visual body 214 is a removable component.

The outer visual body 214 is fixed to the upper body 120. In this embodiment, the outer visual body 214 is coupled to the upper outer body 128. The outer visual body 214 forms a continuous outer surface of the upper outer body 128.

The outer visual body 214 is formed of a material that can see through the inside. The outer visual body 214 may be formed of a transparent or translucent material.

A display module 160 displaying an operating state to a user may be disposed on at least one of the air clean module 100 and the air wash module 200 . In this embodiment, a display module 160 is installed on the base body 110 to display the operating state of the humidifying cleaning device to the user.

A display module 160 is disposed inside the outer visual body 214 . The display module 160 is placed in close contact with the inner surface of the outer visual body 214 . The display module 160 has a donut shape when viewed from a plane. The water tank 300 is inserted into the display module 160 .

The display module 160 is supported by the outer visual body 214 . The inner edge of the display module 160 is supported by the upper inner body ring 126 . The display module 160 is located above the air guide 170. The display module 160 may be integrally manufactured with the base connector 260 .

The display module 160 is located above the air guide 170. The display module 160 may be disposed between the upper outer body 128 and the upper inner body 140 . The display module 160 covers so that the user cannot see between the upper outer body 128 and the upper inner body 140 . In particular, in order to prevent water from permeating between the upper outer body 128 and the upper inner body 140, the inside and outside of the display module 160 are preferably sealed.

The inner side of the display module 160 is supported by the upper inner body 140 and the outer side is supported by the outer visual body 218 .

In this embodiment, the display module 160 is formed in a ring shape. Unlike the present embodiment, the display module 160 may be formed in an arc shape. The surface of the display module 160 is formed of a material capable of reflecting light or coated with a material capable of reflecting light.

So, when water is formed on the visual body 210, the water formed on the visual body 210 may be projected or reflected on the surface of the display module 160. When water condensed from the visual body 210 flows down, the same effect appears on the display module 160.

This effect gives a visual stimulus to the user, and the user can intuitively recognize that humidification is being performed. The water drop image projected on the display module 160 not only has an emotional effect of giving the user a sense of refreshment, but also has a functional effect of knowing the humidification state.

The upper side of the display module 160 is formed to be inclined. The display module 160 is inclined toward the user. So the inside is high and the outside is low.

Next, each configuration of the air wash module 200 will be described.

The air wash module 200 provides humidification for the filtered air. The air wash module 200 may implement a rain view in the humidification passage 106 . The air wash module 2000 injects water from the water tank 300 and circulates it. The air wash module 200 converts water into small-sized droplets and washes the filtered air once again through the scattered droplets. When washing the filtered air through the splash water, humidification and filtering take place once again.

The air wash module 200 includes a humidification connection passage 105, a humidification passage 106, a discharge passage 107 and a water supply passage 109.

The air wash module 200 includes a water tank 300, a watering unit 400, a humidifying medium 50, a visual body 210, a top cover assembly 230, and a handle 180.

The handle 180 is coupled to the visual body 210, rotates in the visual body 210, and is stored in the visual body 210. Only the air wash module 200 can be easily lifted through the handle 180, and can be separated from the air clean module 100.

The humidification connection passage 105 is disposed outside the water tank 300 and may guide air into the water tank 300 . The humidification connection passage 105 is disposed outside the visual body 210 and may guide air into the visual body 210 .

The humidification connection passage 105 is disposed outside at least one of the water tank 300 and the visual body 210, and may guide air into either the water tank 300 or the visual body 210. .

The discharge passage 107 may be disposed between the top cover assembly 230 and the visual body 210 . The discharge passage 107 may be disposed on at least one of the top cover assembly 230 and the visual body 210 .

In this embodiment, the discharge passage 107 is formed between the top cover assembly 230 and the visual body 210, and the water supply passage 109 is disposed at the inner center of the top cover assembly 230, respectively.

In the humidification cleaning device according to this embodiment, power is connected to the air clean module 100, and the air wash module 200 receives power through the air clean module 100.

Since the air wash module 200 is separable from the air clean module 100, the air clean module 100 and the air wash module 200 are provided with a detachable power supply structure.

Since the air clean module 100 and the air wash module 200 are detachably assembled through the upper body 120, the upper body 120 has a base providing power to the air wash module 200. A connector 260 is disposed. An internal wireless power transmitter 410 is installed in the base connector.

In the top cover assembly 230 of the air wash module 200, a control unit and a display requiring power are disposed. A top connector 270 detachably connected to the base connector 260 is disposed in the air wash module 200 . The top connector 270 is disposed on the top cover assembly 230.

In this embodiment, since the top cover assembly 230 can be separated, the inner surface of the visual body 210 or the inner surface of the water tank 300 can be easily cleaned.

The top cover assembly 230 has a water supply passage 109 formed therein, and forms a discharge passage 107 between it and the visual body 210. The top cover assembly 230 is detachably installed from the visual body 210 . The top cover assembly 230 has a top connector 270 electrically connected to the base connector 260 .

When the top cover assembly 230 is mounted, the top connector 270 is mounted above the base connector 260. The top cover assembly 230 receives electricity from the base connector 260 through the top connector 270 .

A wireless power receiver 420 is installed inside the top connector 270 .

As the top connector 270 is arranged to correspond to the base connector when the top cover assembly is mounted, a wireless power signal is transmitted from the wireless power transmitter to the wireless power receiver, and power is supplied to the top cover assembly.

A water level display unit 247 displaying the water level of the water tank 300 is disposed around the water supply passage 109 . Therefore, when supplying water, the user can check how full the water level of the invisible water tank 300 is. By disposing the water level display unit 247 on the user's water supply line, it is possible to prevent the user from excessively supplying water and to prevent the water tank 300 from overflowing.

The water level display unit 247 is disposed on the top cover assembly 230 . The detachable power supply structure of the top connector 270 and the base connector 260 makes it possible to effectively configure the upper water supply.

The water tank 300 is detachably mounted on the upper body 120 . The watering unit 400 is disposed inside the water tank 300 and rotates inside the water tank 300.

The water tank 300 is formed by extending upward from the water tank body 320 in which water is stored, an air wash inlet 31 formed on a side surface of the water tank body 320, and the water tank body 320. A water tank body extension 380 coupled to the visual body 210 is included.

In this embodiment, the water tank body 320 is formed in a cylindrical shape with an open top. Unlike the present embodiment, the water tank body 320 may be formed in various shapes.

The watering unit 400 has a function of supplying water to the humidifying medium 50 . The watering unit 400 has a function of visualizing the humidification process. The watering unit 400 has a function of implementing a rain view inside the air wash module 200.

The watering unit 400 rotates the watering housing 800 to suck in water inside the water tank, pump the sucked water upward, and spray the pumped water outward in a radial direction. The watering unit 400 includes a watering housing 800 that sucks water into the inside, pumps the sucked water upward, and then sprays it radially outward.

In this embodiment, the water ring housing 800 is rotated to spray water. Unlike the present embodiment, it is okay to spray water using a nozzle instead of the watering housing 800. Water can be sprayed from a nozzle to supply water to the humidifying medium 50, and a rain view can be implemented similarly. Depending on the embodiment, water may be sprayed from the nozzle and the nozzle may be rotated.

The water sprayed from the watering housing 800 wets the humidifying medium 50 . The water sprayed from the watering housing 800 may be sprayed toward at least one of the visual body 210 and the humidifying medium 50 .

Water sprayed toward the visual body 210 may implement a rain view. The water injected toward the humidifying medium 50 is used to humidify the filtered air. After implementing a rain view by spraying water toward the visual body 210, the water flowing down from the visual body 210 may wet the humidifying medium 50.

In this embodiment, a plurality of injection holes having different heights are disposed in the watering housing 800. The water discharged from one nozzle forms droplets on the inner surface of the visual body 210 to implement a rain view, and the water discharged from the other nozzle wets the humidifying medium 50 and is used for humidification.

The watering housing 800 injects water toward the inner surface of the visual body 210, and the sprayed water flows downward along the inner surface of the visual body 210. Droplets formed in the form of water droplets are formed on the inner surface of the visual body 210 , and the user can see the droplets through the visual body 210 .

In particular, the water flowing down from the visual body 210 wets the humidifying medium 50 and is used for humidification. The humidifying medium 50 may be wetted by water sprayed from the watering housing 800 and water flowing down from the visual body.

The visual body 210 is coupled to the water tank 300 and is positioned above the water tank 300. At least a part of the visual body 210 is formed of a material capable of seeing through the inside.

A display module 160 may be disposed outside the visual body 210 . The display module 160 may be coupled to either the visual body 210 or the upper body 120 .

The display module 160 is disposed on a line of sight through which a rain view can be observed. In this embodiment, the display module 160 is disposed on the upper body 120 .

When the air wash module 200 is mounted, the outer surface of the visual body 210 is in close contact with the display module 160 . At least a portion of the surface of the display module 160 may be formed of or coated with a material that reflects light.

Droplets formed on the visual body 210 are also projected onto the surface of the display module 160 . Therefore, the user can observe the motion of the droplet at two locations of the visual body 210 and the display module 160 .

The water tank 300 is formed with an air wash inlet 31 through which air is communicated. The air wash inlet 31 is located between the connection passage 103 and the humidification passage 106. The air wash inlet 31 is an outlet of the connection passage 103 and an inlet of the humidification passage 106 .

Filtered air supplied from the air clean module 100 flows into the air wash module 200 through the air wash inlet 31 .

The humidifying medium 50 includes a water tank humidifying medium 51 disposed at an inlet of the humidifying passage 106 and a discharge humidifying medium 55 disposed at an outlet of the humidifying passage 106 . An outlet of the humidification passage 106 and an inlet of the discharge passage 107 are connected to each other. Therefore, the discharge humidifying medium 55 may be disposed in the discharge passage 107.

Filtered air is humidified by the water naturally evaporated from the humidifying medium 50 . The natural evaporation refers to evaporation of water without applying additional heat. As the contact with air increases, the flow rate of air increases, and the pressure in the air decreases, spontaneous evaporation is promoted. The natural evaporation is also referred to as natural evaporation.

The humidifying medium 50 promotes natural evaporation of water. In this embodiment, the humidifying medium 50 is wetted with water, but not submerged in the water tank 300.

Since they are spaced apart from and disposed separately from the water stored in the water tank 300, even if there is water stored in the water tank 300, the water tank humidifying medium 51 and the discharge humidifying medium 55 are not always wet. That is, the tank humidifying medium 51 and the discharge humidifying medium 55 are wet only when operating in the humidifying mode, and the tank humidifying medium 51 and the discharge humidifying medium 55 are dry when operating in the air cleaning mode. can be maintained as is.

The water tank humidifying medium 51 covers the air wash inlet 31, and air flows into the water tank 300 through the water tank humidifying medium 51.

The discharge humidifying medium 55 may be disposed at an outlet of the humidification passage 106 or an inlet of the discharge passage 107 .

In this embodiment, the discharge humidifying medium 55 is disposed to cover the top of the visual body 210. The discharge humidifying medium 55 is mounted on the visual body 210. Unlike this embodiment, the discharge humidifying medium 55 may be coupled to the lower surface of the top cover assembly 230 .

The discharge humidifying medium 55 covers the discharge passage 107 , and the humidified air flows into the discharge passage 107 after penetrating the discharge humidification medium 55 .

Hereinafter, the top cover assembly 230 will be described.

FIG. 4 is a perspective view in which the top cover assembly is separated from the air wash module shown in FIG. 2;

In this embodiment, the water tank 300 and the visual body 210 are manufactured as separate parts. Unlike this embodiment, the water tank 300 may be integrally manufactured with the visual body 210. For example, some components of the water tank 300 may be formed of a transparent material through double injection. In this case, the visual body 210 is not manufactured as a separate component.

In this embodiment, the top cover assembly 230 is described as being mounted on the visual body 210, but unlike this embodiment, when the visual body 210 is integrated with the water tank 300, the opening of the water tank 300 Can be mounted on top.

In this embodiment, the top cover assembly 230 is characterized in that it is detachably mounted on the visual body 210. The top cover assembly 230 not only provides a discharge passage 107 but also provides a water supply passage 109 for supplying water.

In this embodiment, the top cover assembly 230 is located above the discharge humidifying medium 55 . In this embodiment, the discharge humidifying medium housing 1400 in which the discharge humidifying medium 55 is disposed is disposed, and the top cover assembly 230 is disposed above the discharge humidifying medium housing 1400. The discharge humidifying medium housing 1400 is mounted on top of the visual body 210. The top cover assembly 230 is mounted on top of the discharge humidifying medium housing 1400 . The top cover assembly 230 may be integrally assembled with the discharge humidifying medium housing 1400 . In this embodiment, the top cover assembly 230 and the discharge humidification medium housing 1400 are manufactured respectively.

The top cover assembly 230 is supported by being mounted on the visual body 210, and no load is applied to the discharge humidifying medium housing 1400.

The top cover grill 232 includes a grill outlet 231 forming at least a portion of the discharge passage 107 and a grill water inlet 233 forming at least a portion of the water supply passage 109 . The grill discharge port 231 and the grill water supply port 233 are formed by opening in the vertical direction. The grill water inlet 233 is disposed at the inner center of the top cover grill 232, and the grill outlet 231 is disposed outside the grill water inlet 233.

The top cover reel 232 is detachably mounted on the visual body 210. The top cover grill 232 is mounted inside the visual body 210.

The control module 240 is coupled to the top cover reel 232 .

The manipulation module 240 may receive a user's manipulation signal. The operation module transmits water level information to the user. A water supply passage 109 is disposed in the control module 240. The control module 240 is electrically connected to the top connector 270 and receives power from the top connector 270 .

The operation module (240) is coupled to the discharge grill and has an input unit 245 and a water level display unit 247 in an operation space formed inside an operation housing in which at least a part of the water supply passage 109 is formed. Is provided, Input/output controllers 246 and 470 that control the input unit 245 and the water level display unit 247 are included.

The manipulation housing 250 includes an upper manipulation housing 242 and a lower manipulation housing 244 .

The manipulation space 243 is formed between the upper manipulation housing 242 and the lower manipulation housing 244, and the manipulation space 243 is sealed to prevent penetration of water. The input unit 245, the water level display unit 247, and the input/output control unit 246 are disposed in the manipulation space 243.

Although not shown in this embodiment, the water filter (not shown) may be installed on the water supply passage 109 or in the water tank 300 . The water filter may purify hard water into soft water. When the water filter is disposed, it is preferable to be disposed in the operation housing, softened by gravity, and then moved to the water tank 300.

The input unit 245 may be a touch panel capable of detecting a user's touch manipulation. The input unit 245 may receive a user's touch manipulation in a static pressure type or a capacitive type. Unlike the present embodiment, the input unit 245 may be a button.

The input unit 245 is disposed on the lower surface of the upper control housing. A light emitting member (not shown) may be disposed in the input unit 245, and light may be selectively generated from the light emitting member.

For example, when it is necessary to receive a user's manipulation signal, the input unit 245 may emit light. For example, when it is necessary to allow the user to recognize an operation signal input by the user, the input unit 245 may emit light. In addition, when the humidification cleaning device is operated according to an operation signal input by a user, light may be emitted.

The surface of the housing of the manipulation module 240 and the upper manipulation housing may be coated with a material capable of selectively transmitting light. Accordingly, light emitted from the input unit 245 can pass through the upper control housing, and the user can see it. When the input unit 245 does not emit light, external light is reflected from the surface of the upper control housing, and the user cannot check the position of the input unit.

When water is supplied to the top, when water is poured into the water tank, the water level display unit 247 can be checked.

An input unit display area 255 where the input unit 245 is displayed and a water level display area 257 where the water level display unit 247 is displayed are disposed on the manipulation housing.

The input unit display area 255 and the water level display area 257 may be disposed inclined toward the front.

The input/output control unit 246 detects a signal of the input unit 245, analyzes the signal of the input unit 245, and transmits it to a control unit (not shown). The controller may be disposed on the base body 110.

The input unit 245 may be hidden in the upper control housing, and the location may be exposed to the user by emitting light only during operation. Power to the input unit 245, the water level display unit 247, and the input/output control unit 246 is supplied through the base connector 260.

The top connector 270 is assembled with the control module 240 to form the top cover assembly 230 . Since the top connector 270 and the base connector 260 can be separated, the top cover assembly 230 can be detachably mounted on the visual body 210, and power or electrical signals can be supplied from the base body 110. can send and receive.

When the top connector 270 is mounted on the upper side of the base connector 260, it is electrically connected to the base connector 260, and when the top connector 270 is separated from the base connector 260, the base connector 260 ) and electrically disconnected.

The top connector 270 can be mounted on the upper side of the base connector 260 without a separate structure. For example, when the top cover assembly 230 is mounted on the visual body 210, the top connector 270 and the base connector 260 may be positioned outside the visual body 210.

In this embodiment, since the top connector 270 is located inside the visual body 210, the top connector 270 is disposed on the upper side of the visual body 210, and the top connector 270 is disposed on the lower side of the visual body 210. A base connector 260 is disposed.

That is, the top connector 270 and the base connector 260 are separated by the visual body 210 as a boundary. Therefore, the top connector 270 and the base connector 260 must transmit power and signals through the visual body 210 .

In this embodiment, the top connector 270 and the base connector 260 transmit signals through wireless communication. Unlike the present embodiment, a communication signal may be transmitted through direct contact.

The base connector 260 and the top connector 270 communicate electrical signals in a non-contact manner. Various communication modules may be used for wireless communication between the base connector 260 and the top connector 270 .

Since the base connector 260 and the top connector 270 are arranged in a short distance, IR, Zigbee, NFC, Bluetooth, etc. suitable for short distance communication may be used.

In this embodiment, the base connector 260 and the top connector 270 communicate through an IR signal. In order to transmit the IR signal, the connector holder 212 must be made of a material capable of passing the IR signal. In this embodiment, the connector holder 212 is formed of a transparent material. Since the entire visual body 210 is formed of a transparent material capable of transmitting light, a separate material does not need to be disposed only for the connector holder 212 .

A base connector window 263 through which the IR signal is transmitted is disposed on the base connector 260 . A top connector window 273 through which the IR signal is transmitted is disposed on the top connector 270 .

A top connector communication unit 275 is disposed above the top connector window 273 . A base connector communication unit 265 is disposed below the base connector window 263 .

The signal transmitted from the top connector communication unit 275 is received by the base connector communication unit 265 via the top connector window 273, the connector holder 212, and the base connector window 263.

In contrast, the signal transmitted from the base connector communication unit 265 is received by the top connector communication unit 275 via the base connector window 263, the connector holder 212, and the top connector window 273.

A signal transmitted from the top connector communication unit 275 to the base connector communication unit 265 may be a user's operation signal input to the operation module 240 . A signal transmitted from the base connector communication unit to the top connector communication unit 275 may be a signal for controlling the water level display unit 247 .

The base connector 260 and the top connector 270 not only communicate using electrical signals, but also supply power from the visual body to the cover assembly. The base connector 260 includes wireless power transmitters 277 and 410, and the top connector 270 includes wireless power receivers 276 and 420 to supply power from the visual body to the cover assembly in a non-contact manner. do.

When the top cover assembly is mounted on the visual body, induced electromotive force is generated in the wireless power transmitter 277 and the wireless power receiver 276, and power applied from the power supply unit 185 of the visual body is supplied to the top cover assembly of the power receiver. do.

The wireless power transmission unit 277 and the wireless power reception unit 276 are disposed at positions corresponding to each other. In addition, in a state where the top cover assembly is mounted, the wireless power transmitter 277 and the wireless power receiver 276 are installed to be close to each other by a certain distance or less.

When the top cover assembly is mounted on the visual body, power is supplied from the base body through the power supply unit 185, power is supplied to the control module of the top cover assembly, and signal is input through the user's touch input through the input unit or key input. this becomes possible In addition, the light emitting module may operate in response to a signal input through the input unit to emit predetermined light. As the light emitting module emits light and emits light, the user can visually check the state of touch manipulation or key input. In addition, lighting of the operation module may be operated so that lighting corresponding to a key input by a user's touch may be turned on.

When the top cover assembly is separated from the visual body, power supply between the wireless power transmitter and the wireless power receiver is cut off. If the top cover assembly is separated from the visual body by less than a certain distance, power supply can be maintained, but if it is separated by a distance where mutual power supply is impossible, power supply is immediately stopped.

Contactless wireless power transfer (WPT) describes power supply using induced electromotive force, but this is only an example and can be implemented in other ways. The wireless power transmitter and the wireless power receiver are provided inside the base connector and the top connector, respectively, and are not exposed to the outside.

Meanwhile, a discharge humidifying medium housing 1400 is disposed below the top cover assembly 230 . A user may supply water through the manipulation water supply port 241 formed in the top cover assembly 230 .

A groove may be formed on one side of the discharge humidifying medium housing 1400 so that the top connector can be easily seated when the cover assembly is mounted on the visual body. The discharge humidification medium housing is configured such that the shape of the groove is similar to that of the top connector.

A user may supply water from the upper side of the top cover assembly 230 . The water dropped into the control water supply port 241 flows along the surface of the water supply cap 1430, is temporarily stored in the water supply reservoir 1441, and flows to the lower part of the discharge humidification medium housing 1440 through the water supply port 1445. .

The water passing through the water inlet 1445 falls into the visual body 210 and then falls to the top of the watering housing 800.

When the watering housing 800 is rotated, the water supplied through the upper water supply is scattered to the inner surface of the visual body 210. Then, the scattered water flows along the inner surface of the visual body 210 and is stored inside the water tank 300, raising the water level of the water tank 300.

The control unit determines the signal detected by the water level sensor 135 and displays the water level of the water tank 300 on the water level display unit 247 .

When water is supplied from the top, the user cannot see the water level inside the water tank 300, but can immediately check the increased water level through the water level display unit 247 disposed around the manipulation water supply port 241.

Since the user can check the water level through the water level display unit 247 during the upper water supply, the upper water supply flow rate can be adjusted.

On the other hand, in this embodiment, the top cover assembly 230 has been described as a detachable structure from the visual body 210.

5 is a reference diagram explaining a method of supplying power to the top cover assembly in the humidifying and cleaning device of the present invention.

As described above, the base connector 260 of the base body is provided with a wireless power transmitter, and supplies power to the top cover assembly in a non-connected manner. A wireless power receiver is provided in the top connector of the top cover assembly.

As shown in (a) of FIG. 5, power is supplied to the top cover assembly according to the magnetic induction method between the wireless power transmitter of the base body and the wireless power receiver of the top cover assembly.

When the wireless power transmitter of the base body and the wireless power receiver of the top cover assembly are disposed close to each other by a certain distance, current is applied to the coil of the wireless power transmitter through switching control, and a magnetic field is formed according to the current flow.

When the coil of the wireless power receiver is positioned within the range of the magnetic field of the wireless power transmitter, current is induced in the coil of the wireless power receiver. Accordingly, power is supplied from the base body to the top cover assembly. This wireless power transfer method is described using a magnetic induction method as an example, but it is only an example, and a magnetic resonance (MR) method and a long-distance microwave method may be used.

When power is supplied to the top cover assembly through wireless power transmission, as shown in FIG. 5(b), power is supplied to the control module 240 and the second display provided in the top cover assembly. The control module 240 becomes capable of touch or key input as power is supplied. In addition, it is provided in the input unit so that lighting can be turned on/emitting. In some cases, the brightness of lighting may be changed or a predetermined sound effect may be output in response to manipulation of the input unit.

6 is a block diagram briefly showing the control configuration of the humidifying and cleaning device of the present invention.

As shown in FIG. 6, the humidification cleaning device includes a control module 240 including an input unit 245, a display module 160 including a display module, a plurality of sensors, an electric dust collector 500, and a blower motor 22 ), an aberration motor 42, a power supply unit 185, a communication unit 181, and a control unit 190 that controls the overall operation.

The humidification cleaning device includes a gas sensor 131, a dust sensor 133, a temperature sensor 124, a humidity sensor 134, a water level sensor 135, and a filter sensor 127. Various other sensors may be installed, but descriptions of the other sensors are omitted.

As described above, the dust sensor 133 detects dust from the inhaled air. The dust sensor 133 detects the concentration of dust in the air and inputs it to the controller 190 . The dust sensor 133 can detect the concentration of dust for each size of the dust particle, and in this embodiment, it can separately detect the concentration of dust of PM 1.0, PM 2.5, and PM 10.0.

The gas sensor 131 detects the concentration of odor from the inhaled air. The gas sensor 131 detects the concentration of odorous substances contained in indoor air, and detects various types of gas concentrations as well as food odors.

The temperature sensor 124 detects the temperature of the intake air, and the humidity sensor 134 detects the humidity of the intake air. At this time, since the temperature and humidity of the sucked air are the temperature and humidity of the indoor air, the controller 190 changes the operation or controls the humidification module to adjust the degree of humidification based on the detected temperature and humidity.

The water level sensor 135 detects the level of water accommodated in the water tank 300 . The water level sensor detects whether the water in the water tank is full or there is no water through the height of the water in the water tank.

The filter sensor 127 can detect when the filter assembly 10 is opened from the body, and also detects whether the filter 14 installed in the filter assembly 10 is removed. The filter sensor 127 detects whether a filter is normally inserted, and detects no filter when any one filter is not inserted.

The input unit 245 is included in the control module 240 and is provided with a plurality of keys or touch means to receive commands from the user. The input unit 245 is disposed on the upper surface of the top cover assembly 230 to set commands and operation modes for the operation of the humidifying cleaning device.

At this time, as the control module 240 is provided in the top cover assembly 230, when the top cover assembly 230 is opened and detached from the base body 110, the power supply from the body is cut off so that it does not operate. .

The top cover assembly 230 and the body are connected through a contact terminal when the top cover assembly 230 is mounted on the body, so that power is supplied to the control module 240 and a signal according to a key input of the input unit 245. is input to the controller 190.

The control unit 190 may detect whether or not the top cover assembly 230 is removed through a contact terminal or a sensor of the provided cover detection unit, and determine the cover open state.

The display module 160 displays the operating state of the humidifying cleaning device. The display module 160 outputs an operating state in a combination of at least one of letters, numbers, icons, and images.

The display module 160 can display information about the operation mode set according to the key input of the control module 240 and the concentration of odor or dust detected through the sensor, and can display the measured temperature and humidity, and humidification Humidity settings according to functions, network connection status, water tank status, etc. are displayed.

In addition, the lighting unit 165, which is one of the display modules 160, is turned on to display the operating state of the humidification and cleaning device, and also outputs information about the indoor environment as it is turned on in different colors corresponding to the concentration of odor or dust do.

As described above, the blowing motor 22 rotates the blowing fan to suck in indoor air, and blows the sucked air through the air clean module 100 to the air wash module 200 . The rotational speed of the blower motor is changed according to the wind strength setting of the input unit.

The water wheel motor 42 sucks water accommodated in the water tank 300 and sprays it. The water turbine motor 42 rotates the water wheel 44 provided in the water tank to suck water in the water tank and spray it. When water is sprayed by the water wheel motor 42, the air passing through the air wash module 200 is humidified and discharged into the room.

In addition, the water tank of the humidification cleaning device may further include an ultraviolet unit 136 installed at the bottom of the water tank 300 to sterilize the water tank and the water contained in the water tank. The ultraviolet unit is composed of a lamp that generates ultraviolet rays, and is turned off for a predetermined period of time after maintaining an on state for a predetermined period of time. At this time, the time during which the ultraviolet unit operates is a time sufficient to sterilize the water in the water tank.

The communication unit 181 is communicatively connected to the user's portable device and transmits the status of the humidifying cleaning device to the user's portable device. In addition, the communication unit 181 receives a user's command input through the user's portable device and applies it to the control unit 190 . The communication unit 181 is a mobile device such as a user's cell phone or tablet and wireless communication such as WLAN (Wireless LAN, Wi-Fi), 3G or 4G LTE, Bluetooth, RFID (Radio Frequency Identification), infrared communication (IrDA, infrared data) Association), etc., and can be connected wirelessly. When the communication unit 181 is connected to a portable device, the display module 160 displays a communication connection state as an icon.

In addition, the communication unit 181 includes a second communication unit and a third communication unit for data transmission and reception between the base body and the top cover assembly as well as communication with external devices. The base connector 260 and the top connector 270 are included in the second or third communication unit.

The electric precipitator 500 is mounted on a humidification and cleaning device to charge and collect dust particles included in the air.

The electric precipitator 500 may be installed in the filter assembly 10 in which the plurality of filters 14 are installed. The electric dust collecting unit 500 includes a charging unit that forms an electric field and a dust collecting unit that collects dust particles charged by the charging unit. While the air passes through the dust collection unit after passing through the charging unit, dust in the air is collected in the dust collection unit. The charging unit includes discharge electrodes and counter electrodes arranged in parallel with the discharge electrodes, and the dust is charged by corona discharge between the counter electrode and the discharge electrode facing each other.

The power supply unit 185 rectifies and smooths the supplied power, changes it to a voltage required for operation, and supplies it to each unit. In addition, the power supply unit 185 supplies power to the top cover assembly separated from the body. The power supply unit 185 includes a wireless power transmitter provided in the base body and a wireless power receiver provided in the top cover assembly to supply operation power to the top cover assembly in a non-contact manner.

The controller 190 starts or ends an operation according to a command input through the input unit 245 or the communication unit 181 and sets an operation mode. The control unit 190 may be implemented with one or more processors or may be implemented as a hardware device.

The control unit 190 controls the electric dust collector 500, the blower motor 22, the aberration motor, the ion generator 137 and/or the ultraviolet unit 136 according to the operation mode, and controls the lighting unit 165 and the display module. 160 and/or the communication unit 181 may display or inform the user of the operating state of the humidifying cleaning device.

The control unit 190 can change the operation mode or change the settings in response to data sensed from a plurality of sensors, and also determines the failure or abnormal operation of the humidification cleaning device from the data of the sensors to determine the display module 160 or communication unit Errors can be output through (181).

The control unit 190 receives a signal of the input unit 245 provided in the top cover assembly through the communication unit, sets an operation mode accordingly, and controls the operation. When the standby mode is set from the input unit of the top cover assembly, the control unit 190 applies a control command to the power supply unit to operate the visual body with standby voltage, and also controls the voltage supplied to the top cover assembly.

In addition, the control unit 190 determines whether or not the top cover assembly is mounted on the visual body based on the input detection signal and controls power to be supplied to the top cover assembly through the wireless power transmitter.

When the top cover assembly is separated, the control unit 190 determines that the cover is open based on the cover detection signal and cuts off the power supply or sets a standby mode.

When the cover is opened, the controller 190 sets the standby mode and applies a voltage lower than that of the normal mode to the wireless power transmitter.

The controller 190 may output an error by determining whether a foreign substance exists between the visual bodies in a state in which the top cover assembly is mounted.

When a foreign substance is located at the position where the top cover assembly is mounted, as the distance between the top cover assembly and the visual body is separated by a certain distance, between the wireless power receiver provided in the top cover assembly and the wireless power transmitter provided in the visual body power transmission does not occur normally.

In addition, the controller 190 may detect whether or not a foreign substance is located at a position where the top cover assembly 230 is mounted in a state where the top cover assembly 230 is not mounted and separated.

The controller 190 applies a voltage to the wireless power transmitter in a standby mode in a state in which the top cover assembly 230 is separated, thereby detecting a coil voltage of the power transmitter and determining whether there is a foreign substance.

The control unit 190 may detect foreign matter according to a change in coil voltage using a resonant frequency through a wireless power transmitter.

The controller 190 may block power transmission by controlling the wireless power transmitter 410 when a foreign substance is detected. When wireless power transmission is impossible due to foreign substances, the control unit 190 may output an error accordingly. In addition, the controller 190 may output a predetermined warning sound for foreign matter and output an error through the display module.

7 is a block diagram briefly illustrating a control configuration for power supply and communication of a humidifying and cleaning device.

As shown in FIG. 7, the power supply unit 185 supplies operating power to the base body 110, and also includes a wireless power transmitter 410 and a wireless power receiver 420 to transfer the top cover assembly from the base body. Power is supplied to (230).

In addition, the wireless power transmission unit further includes a coil voltage detection unit 450 for sensing the coil voltage of the power transmission unit.

The top cover assembly 230 includes a control module 240 including an input unit 245 and a second display unit 257, and the control module 240 and the display unit 257 are wireless power receivers 420 Operates by receiving the power received by

The control unit 190 determines whether the top cover assembly 230 is separated from the visual body in response to the detection signal of the cover detection unit 440, and controls the operation of the wireless power transmission unit 410 accordingly.

When the top cover assembly 230 is separated, the controller 190 sets a standby mode and applies a voltage according to the standby mode to the wireless power transmitter. In some cases, the control unit 190 may block power supply to the wireless power transmission unit so that power is not applied unnecessarily.

When the standby mode is set through the input unit 245, the control unit 190 operates in the standby mode by controlling the power supply unit 185, and enters the standby mode with the top cover assembly 230 to receive a signal in the standby mode state. voltage is applied accordingly. That is, when the power supplied to the top cover assembly 230 is cut off in the standby mode state, since the input unit 245 does not operate, it is not possible to receive an input according to operation setting or release of the standby mode. Accordingly, the controller 190 controls the power supply unit 185 to apply voltage to the top cover assembly 230 in the standby mode.

The top cover assembly 230 receives power through the wireless power receiver 420 . Accordingly, voltage is applied to the input unit 245 and the second display unit 257 provided in the top cover assembly 230, and the input/output controllers 246 and 470 that control input and output operate.

The input/output controller 246 (470) controls the output of the second display unit 257 in response to a signal input through the input unit 245, and transmits data to the base body through the third communication unit 480. The second display unit 257 is provided in the top cover assembly 230 among the display modules 160 described above, and a separate display may be added. For example, since the water level display area is displayed by the second display unit 257, it is specified that the same reference numerals are used.

The second communication unit 430 inputs received data to the control unit 190, and the control unit 190 controls an operation corresponding to the input data.

In addition to the communication unit 181 for communication with the outside, a second communication unit 430 in the base body and a third communication unit 480 in the top cover assembly are provided to transmit and receive data between the base body and the top cover assembly 230. do. The second communication unit 430 and the third communication unit 480 are connected wirelessly through Bluetooth, RFID (Radio Frequency Identification), infrared communication (IrDA, Infrared Data Association), etc., but are not limited thereto, and other wireless devices such as WIFI. A communication method may be applied.

In the normal mode, when the standby mode is set through the input unit 245, the input/output controllers 246 and 470 transmit data according to the standby mode setting through the third communication unit 480, and the control unit 190 Corresponding to data received through the communication unit 430, a standby mode is set.

The controller 190 controls the operation of the air clean module 100 and the air wash module 200 as the standby mode is set. In addition, the controller 190 controls the voltage applied from the wireless power transmitter 410 to the top cover assembly 230. As the standby mode is set, the voltage applied to the top cover assembly 230 through the wireless power receiver 420 is changed to a low voltage according to the standby mode.

The voltage according to the standby mode is used to receive a key input of the input unit 245, and power supply is cut off for other operations. In some cases, some of the second display unit 257 may be operated. For example, in the second display unit, a notification display indicating a standby mode setting state may be maintained, but all remaining displays may be turned off.

When standby mode release is selected through the input unit 245, the input/output controllers 246 and 470 transmit data according to the standby mode release through the third communication unit 480, and the control unit 190 cancels the standby mode and By supplying power to operate in normal mode, the air clean module and air wash module are controlled to operate according to their respective settings.

The control unit 190 allows the general voltage to be applied from the wireless power transmission unit 410 . As the normal voltage is applied to the top cover assembly 230, all operations operate normally.

In addition, when the standby mode is set in a state in which the top cover assembly 230 is separated, the control unit 190 determines whether foreign substances are located at the position where the top cover assembly is mounted, that is, the position where the top cover assembly of the visual body is mounted. detect In some cases, foreign substances between the connector of the base body and the visual body can also be detected.

As the standby mode is set by the control unit 190, the wireless power transmission unit applies a voltage of 6.5 lower than the normal mode voltage of 12V, selects a range according to the distribution of the resonant frequency, and then changes the frequency.

As the standby mode is set in the cover open state with the top cover assembly separated, the wireless power transmitter 410 recognizes it as a foreign matter detection mode and performs an operation for detecting foreign matter, and the coil voltage is varied accordingly.

The coil voltage detection unit 450 senses the coil voltage according to the frequency change and inputs it to the control unit.

The control unit determines whether there is a foreign substance based on the coil voltage input from the coil voltage sensing unit 450 . Since the coil voltage is different depending on the foreign substance in the state in which the top cover assembly is separated, the control unit can determine whether or not there is a foreign substance based on this.

In addition, the controller 190 may determine whether or not there is a foreign substance in a state in which the top cover assembly 230 is mounted. If a foreign substance is located between the top cover assembly 230 and the base body 110, power is not normally supplied to the top cover assembly, and the input unit and the second display unit provided in the top cover assembly do not operate normally.

Foreign matter may be located at the point where each body is joined. In particular, as the top cover assembly 230 is separated from the visual body 210, foreign substances may be located during the separation and mounting process.

When it is determined that a foreign substance is located, the controller 190 may output an error through the display unit, output a guide about the foreign substance, and output a predetermined warning sound or voice guide.

In addition, the control unit 190 controls the wireless power transmission unit 410 to stop wireless power transmission when a foreign material is detected, since heat generated by the foreign material may lead to ignition and damage to the internal circuit.

8 is a block diagram briefly showing the configuration of a wireless power transmitter and a wireless power receiver for supplying power to the top cover assembly, and FIG. 9 is a simplified circuit configuration according to wireless power transmission of the humidifying and cleaning device of the present invention. It is a diagram shown in detail.

8 and 9, the base body 110 includes a wireless power transmitter 410, and the top cover assembly 230 includes a wireless power receiver 420, and the visual body 210 Power is supplied to the separated top cover assembly 230 using a non-connection method.

In addition, the coil voltage detection unit 450 is connected to the power transmission unit 416 of the wireless power transmission unit 410 and senses the voltage applied to the coil of the power transmission unit.

The controller 190 receives the cover detection signal, determines whether the top cover assembly 230 is mounted on the visual body 210 or separated, and controls power supply through the wireless power transmitter 410 on/off. . When the top cover assembly 230 is separated, the control unit 190 causes the wireless power transmitter to operate in a standby mode.

The wireless power transmission unit 410 includes a filter unit 413, a regulator 414, a switching unit 415, a power transmission unit 416, a current detection unit 412, and a power transmission control unit 411. A coil voltage sensing unit 450 is connected to the power transmission unit 416 .

The filter unit 413 filters the input power, that is, the current above or below a certain level. The filter unit 413 blocks inrush current.

The regulator 414 generates a voltage to be transmitted from the wireless power transmitter 410 to the wireless power receiver 420 according to a control command of the controller. The regulator changes and transmits the voltage according to the setting. For example, the regulator 414 outputs a voltage of 12V during normal operation in response to a control command and outputs a voltage of 6.5V when a standby mode is set. Accordingly, the voltages sensed at the first point PV1 are 12V and 6.5V in the normal mode and the standby mode, respectively.

The first voltage sensing unit 417 is connected between the regulator 414 and the switching unit 415 and detects a voltage output from the regulator. Accordingly, the voltage sensing unit 417 includes a plurality of resistors and capacitors, and senses a voltage division according to the size of the resistors.

The first voltage detection unit 417 detects whether a voltage is normally applied to the power transmission unit 416 after being output from the regulator.

The first voltage sensing unit 417 includes two resistors, and detects a divided voltage divided by a ratio of resistance values of the two resistors as an output voltage of the regulator 414 . A capacitor is connected in parallel with one resistor. The first voltage detector may detect the output voltage PV1 of the regulator by detecting the divided voltage according to the ratio of the resistance value.

In the first current sensing unit 412, a resistor is connected between the regulator 414 and the switching unit 415, and senses a current flowing from the regulator to the switching unit. The current detection unit detects overcurrent and inputs a detection signal to the power transmission control unit. The current sensing unit 412 is connected to the voltage sensing unit 417 .

The switching unit 415 applies a wireless power signal to the power transmission unit as the plurality of switches are turned on and off according to the switching control signal of the power transmission control unit. The switching unit may be connected to both ends of the coil of the power transmission unit, respectively.

The switching unit converts the output voltage of the regulator into alternating current and applies it to the coil so that power is transmitted.

In the power transmission unit 416, current is applied to the coil by the operation of the switching unit, and electricity is induced. The coil of the power transmission unit is preferably installed so as to face the rear surface of the side where the switching unit and the power transmission control unit are provided and face the power reception unit.

The power transmission control unit 411 applies different types of switching control signals (PWM control signals) to the switching unit in the normal mode and the standby mode.

For example, the power transmission control unit 411 applies a switching control signal of a designated frequency in normal mode and applies a switching control signal for section switching in standby mode.

The power transmission control unit applies a PWM control signal of a fixed frequency to the switching unit in the normal mode, and performs high-efficiency section switching at a frequency lower than that of the normal mode in the standby mode.

The power transmission control unit divides the signal period into an operation period and a stop period, and generates a switching control signal so that the switching unit operates in the operation period. The power transmission control unit applies a switching control signal of a first frequency to the switching unit when the normal mode is set, and when the standby mode is set, the power transmission control unit performs section switching at a frequency lower than the first frequency, so that the normal mode and the standby mode have different frequencies. A switching control signal is generated.

High-efficiency section switching means that power consumption in standby mode increases due to large ineffective circulating current due to LC resonance. In order to solve this problem, PWM control is performed by dividing the switching section and the stop section for each section. The power transmission control unit separates the lengths of the operation period and the stop period so that the lengths of the operation period are different, and PWM control is performed in the operation period. For example, PWM control can be performed only in the operating section by repeating a 2 ms operation section and an 8 ms stop section.

In addition, when setting the standby mode, the power transmission control unit generates the switching control signal with a duty lower than that of the normal mode, and adjusts the ratio of the lengths of the operation section and the stop section according to the duty. When setting the standby mode, the power transmission control unit sets the duration so that the length of the operation section and the stop section are the same, or the length of the stop section is longer than the length of the operation section.

The power transmission control unit 411 may control the duty to be 50% in the normal mode and to vary the duty within a range of 0 to 50 in the standby mode. In addition, the power transmission control unit reduces noise through soft switching.

Accordingly, a wireless power signal is transmitted at a predetermined frequency by the switching unit with a voltage of a certain size output from the regulator, and as an induced current is applied to the wireless power receiving unit, power is supplied from the base body to the top cover assembly in a non-contact manner. do.

Meanwhile, the top cover assembly 230 includes a wireless power receiver, a switching regulator, an input/output control unit, an input unit, and a second display unit.

The wireless power receiver may include a power receiver 421, a rectifier 422, and a second voltage detector 425. The rectifying unit includes a smoothing capacitor C1 having a predetermined size.

The wireless power receiver 420 receives power from the base body by an induced current generated in a coil of the power receiver 421 .

The received power is rectified and smoothed through the rectifier 422 and then input to the switching regulator 490, and the switching regulator 490 outputs operating power supplied to the load, that is, the input unit or the second display. The rectifier 422 includes a plurality of diodes.

At this time, the voltage applied to the second point PV2 is 9V to 20V, and the voltage of the operating power output from the switching regulator, that is, the voltage at the third point PV3 is 8V or 6.5V, respectively, depending on the mode.

The input/output controller 246 (470) applies a control signal to the switching regulator 490 so that operating power is output with different voltages depending on the normal mode or the standby mode.

The switching regulator 490 performs DC-DC conversion according to the control signals of the input/output controllers 246 and 470, controls the output voltage according to the normal mode or the standby mode, and outputs operating power having a specified voltage. For example, the switching regulator outputs operating power with a voltage of 8V in normal mode and 6.5V in standby mode.

Since the switching regulator 490 transmits a 6.5V wireless power signal from the wireless power transmitter in the standby mode, it is preferable to use a switching regulator with high power efficiency. In addition, since the switching regulator must output 6.5V operating power with high efficiency in the standby mode, it is preferable to use a capacitor with a large capacity in the wireless power receiver.

At this time, the wireless power receiver 420 does not include a separate microprocessor, and the switching regulator is controlled by the input/output control unit when the rectified operating power is output as a voltage of a predetermined size by the switching regulator.

As the wireless power receiver is not provided with a microprocessor, hardware configuration is simplified and power consumption is reduced, thereby reducing standby power for the operation of the top cover assembly.

In addition, a second voltage sensing unit 425 is connected to the smoothing capacitor.

The second voltage detection unit 425 detects the magnitude of the voltage received by the wireless power receiver 420 and inputs it to the control unit 190 through the third communication unit.

The second voltage sensing unit includes an 11th resistor R11 connected to the rectifier and a 12th resistor R12 connected in series to the 11th resistor. In addition, an 11th capacitor C11 connected in parallel to the 12th resistor is included.

The second voltage sensing unit senses the divided voltage by the eleventh and twelfth resistors. It is sensed by the received voltage. The second voltage sensing unit may sense the received voltage by sensing the divided voltage according to the ratio of the resistance values of the eleventh and twelfth resistors.

In addition, the wireless power receiver includes an overvoltage protection unit that protects the circuit when an overvoltage higher than the set voltage is applied. The overvoltage protection unit includes a 31st resistor (R31) and a 31st diode (ZD31). The 31st diode is a Zener diode.

When the distance between the power transmitter and the power receiver is less than the set distance, for example, less than 5 mm, a voltage of 20V or more may be applied to the power receiver. The overvoltage protection unit reduces the voltage when a voltage of 20V or more is applied so that a constant voltage can be applied.

The controller 190 determines whether the cover is separated through a cover detecting unit composed of sensors.

The coil voltage sensing unit 450 is connected to the power transmission unit 416 to sense a voltage applied to the coil, and inputs the sensed coil voltage to the control unit 190 .

The coil voltage detection unit 450 detects a change in voltage applied to the power transmission unit when the wireless power transmission unit is set to a standby mode in a state in which the top cover assembly is separated. The coil voltage sensing unit detects the coil voltage and applies it to the control unit, and the control unit may detect foreign substances based on the coil voltage.

In the process of detecting the foreign matter, the power transmission control unit controls the regulator so that the output voltage is 6.5V by setting the standby mode according to the control command of the control unit in the state in which the top cover assembly 230 is separated.

Since foreign matter may be introduced while the top cover assembly is separated, the controller detects the foreign matter when the top cover assembly is separated.

The control unit sets the top cover assembly to a standby mode in a state in which the top cover assembly is separated to detect foreign substances. When the foreign matter detection is completed, the control unit may release the standby mode of the wireless power transmitter. In addition, when the top cover assembly is mounted, the control unit can detect foreign substances based on the received voltage of the wireless power receiver side of the top cover assembly.

In addition, the power transmission control unit sets a frequency range based on a resonant frequency according to the unique characteristics of the parts constituting the wireless power transmission unit, and detects a change in coil voltage while changing the frequency within the corresponding frequency range.

Even if products are produced in the same process, errors may occur in each product, and thus a difference in resonance frequency for each product occurs. Therefore, a foreign substance is detected while varying the frequency by setting a predetermined range.

When the wireless power transmission unit is set to standby mode in the cover open state, the power transmission control unit 411 determines that foreign matter is detected and controls the switching signal.

When detecting foreign matter, the power transmission control unit 411 reduces the duty from 50% to 3% to adjust the size of the coil voltage when controlling the switching of the plurality of switches of the switching unit 415 .

The power transmission control unit 411 changes the frequency within a set error range based on the specifications of the resonant coil and capacitor based on the resonant frequency in product design.

The wireless power transmitter performs a ping operation using a resonant frequency in a state where a low voltage is applied. At this time, the coil voltage detection unit 450 senses the coil voltage and inputs it to the control unit.

The coil voltage is measured while changing the frequency, and the gain according to the resonant frequency sets a high frequency. At this time, when the foreign matter is located, since the gain is changed by the foreign matter at the same frequency, the coil voltage can be measured low. In addition, the coin voltage may be measured differently depending on the type of foreign material.

The value measured in the absence of foreign matter is stored as a reference value, and based on the reference value, a setting value for detecting foreign matter can be specified considering measurement error and performance difference depending on the product.

With respect to the coil voltage sensed for each frequency, the control unit selects a value at which the voltage is detected as high, compares the value with the set value, and determines that the foreign matter is located when the coil voltage is less than the set value.

In addition, the control unit stores a peak value among the coil voltages detected for each frequency, detects the voltage by repeating a predetermined number of times, for example, 10 times at the corresponding frequency, and determines the foreign matter through the coil voltage based on the average value. .

10 is a reference diagram for explaining the mounting structure of the top cover assembly of the humidifying and cleaning device of the present invention.

As shown in FIG. 10 , the wireless power transmitter 410 is provided on the base connector 260 protruding upward from the base body 110 . The base connector 260 is configured to contact the visual body 210 to which the water tank is coupled.

The cover detection unit detects whether the top cover assembly 230 is mounted on the visual body 210 and inputs a detection signal to the control unit.

The visual body 210 is coupled to the upper body 120 of the base body 110, and the outer visual body 214 made of a transparent material forms its appearance.

The base connector 260 is provided on the upper body 120 and protrudes upward so that when the visual body 210 is coupled to the upper body 120, the base connector 260 is located at the lower portion of the visual body 210. As such, the wireless power transmitter 410 located inside the base connector and the wireless power receiver 420 located inside the top cover assembly are arranged to correspond to each other, thereby transmitting power.

The distance between the wireless power receiver 420 and the wireless power transmitter 410 is determined according to the thickness of the lower cover of the top cover assembly, the thickness of the visual body, and the thickness of the base connector, and parameters for non-contact power supply are set accordingly. It can be.

As the wireless power transmitter 410 is fixed to the inside of the base connector 260, the power transmitter 416 is disposed at a predetermined position.

The wireless power receiver 420 is inserted and fixed into the top connector 270 of the top cover assembly 230. The wireless power receiver and the wireless power transmitter are arranged to face each other when the top cover assembly is mounted, and their positions can be fixed as they are fixedly arranged on the base connector 260 and the top connector 270, respectively.

When a foreign substance is located at the position where the top cover assembly is mounted, the distance between the power transmitter 416 and the power receiver 421 increases.

The switching frequency is set so that power can be transmitted even if a certain distance is separated due to a small foreign substance or a problem in product manufacturing. Accordingly, the power transmission control unit may generate an output voltage by controlling switching of the switching unit to 113 khz in normal mode and 110 khz in standby mode. In addition, the power transmission control unit sets the switching frequency in consideration of the LC resonant frequency.

On the other hand, when the distance between the wireless power transmitter and the wireless power receiver exceeds a predetermined error range due to foreign substances, power supply to the top cover assembly becomes impossible.

Accordingly, as described above, when the top cover assembly is separated, the control unit switches the wireless power transmitter to a standby mode and detects foreign substances.

11 is a diagram showing a voltage sensing circuit of a wireless power transmission unit of a humidifying and cleaning device of the present invention.

As shown in FIG. 11 , the coil voltage sensing unit 450 has one end connected to the switching unit 415 and the other end connected to the power transmission unit 416 .

The power transmission unit 416 is between the first and third switches S11 and S13 among the first to fourth switches S11 to S14 of the switching unit 415, and between the second and fourth switches S12 and S14. ) are connected between The coil voltage sensing unit 450 has one end connected to one end of the coil of the power transmission unit 416 and the other end connected to the first and third switches S11 and S13.

The coil voltage sensing unit 450 includes a first resistor R21, a second resistor R22, a first capacitor C21, and a first diode D21.

The first diode D21 has one end connected to the coil of the power transmission unit 416 and the switching unit 415 and the other end connected to the first resistor R21 and the first capacitor C21. The other end of the first capacitor C21 is connected to the second resistor R22. The other end of the first resistor R21 is connected to the second resistor R22. The coil voltage is sensed as a divided voltage according to the resistance ratio of the first resistor R21 and the second resistor R22.

The first diode D21 and the first capacitor C21 rectify the current voltage applied to the power transmitter 416 into a DC voltage.

The coil voltage sensing unit 450 detects the DC voltage rectified through the first diode D21 and the first capacitor C21 and applied to the resistor as the coil voltage V21.

12 is a reference diagram for explaining the signal flow of the humidification and cleaning device of the present invention.

As shown in FIG. 12 , the controller 190 determines whether or not a foreign substance is located in the detachable top cover assembly 230 at a position where the top cover assembly 230 is mounted.

When the wireless power transmitter 410 operates in standby mode and voltage is applied to the power transmitter 416, the controller 190 operates a first voltage detector 417, a coil voltage detector 450, and a current detector 412. ), it is determined whether a foreign substance is located or not based on the input data.

At this time, since the top cover assembly 230 is in a separated state, it is possible to detect foreign substances based on the data of the wireless power transmitter 410 side. When the top cover assembly 230 is mounted, the control unit 190 may detect foreign substances based on the received voltage of the wireless power receiver 420.

The first voltage sensing unit 417 senses the voltage output from the regulator, and the current sensing unit senses the corresponding current. The control unit may determine whether the voltage according to the standby mode setting is normally output based on the detected voltage and current. For example, in standby mode, the wireless power transmitter outputs about 6.5V.

In addition, the control unit 190 controls the voltage and frequency of the wireless power transmission unit 410 and detects foreign substances based on a change in coil voltage detected by the coil voltage detection unit 450.

The wireless power transmitter 410 outputs 6.5V according to the standby mode, but adjusts the size of the coil voltage by lowering the duty when foreign matter is detected. In addition, the wireless power transmission unit 410 changes the switching frequency step by step within a set frequency range so that a voltage is applied to the coil.

At this time, the frequency range is set within a predetermined error range based on the resonant frequency according to the design of the product and the resonant frequency of the coil and capacitor of the wireless power transmitter. In addition, the duty for the switch frequency can be controlled to about 3% to 10%.

The coil voltage sensing unit senses the coil voltage for each frequency.

The control unit stores the highest value (peak value) for each frequency of the coil voltage detected through the coil voltage detection unit, calculates the average value by repeating it a predetermined number of times, and compares it with the set value, thereby detecting whether or not there is a foreign substance. .

13 is a diagram comparing coil voltages detected by the wireless power transmission unit of the humidifying and cleaning device of the present invention.

As shown in FIG. 13 , the control unit designates a set value based on the reference voltage and compares the measured coil voltage with the set value (Vth) to determine whether there is a foreign substance.

At the same frequency, A is the reference voltage for the coil voltage in the absence of foreign matter, B is the actual measured coil voltage according to the product or situation in the absence of foreign matter, and C is the coil voltage in the presence of foreign matter am.

At the same frequency, since the foreign matter acts as a load when a position wave occurs, the gain is changed and the coil voltage is reduced. Accordingly, the control unit may detect foreign substances by comparing coil voltages.

14 is a graph of the coil voltage sensed by the wireless power transmitter of the humidifying and cleaning device of the present invention.

As shown in FIG. 14, ping is performed a predetermined number of times for each frequency, for example, 5 times, and this is set as one set (501) and repeated a predetermined number of times (S110). That is, pinging of P1 of the first frequency, P2 of the second frequency, P3 of the third frequency, P4 of the fourth frequency, and P5 of the fifth frequency is performed, and the coil voltage measured accordingly is stored, and the peak value ( 502) is used. Repeat this process a certain number of times.

The coil voltage sensing unit 450 senses the coil voltage and inputs it to the control unit while ping according to the frequency change is being performed. The control unit 190 stores the coil voltage sensed for each frequency, selects and sums the peak values 502 for each set with respect to values repeated in a unit of one set, and calculates an average thereof.

That is, in FIG. 12 described above, the coil voltage B is the coil voltage measured as an average value.

The control unit 19 compares the averaged coil voltage by summing the highest value (peak value) for each frequency with a set value to determine whether or not there is a foreign substance.

15 is a flowchart illustrating a control method of a humidifying and cleaning device according to the present invention.

As shown in FIG. 15, the humidification cleaning device filters foreign substances (fine dust) contained in the air that is sucked in according to input settings, or controls and discharges odors, and also humidifies and discharges the air. .

When power is input, the humidification cleaning device starts operating (S310).

The controller 190 determines whether the top cover assembly (cover) detachable from the visual body is in a mounted state or a separated state (330).

When it is determined that the top cover assembly is normally mounted, the controller 190 supplies power to the top cover assembly (cover).

Meanwhile, when it is determined that the top cover assembly is separated, the controller 190 sets a standby mode (S340).

As the standby mode is set with the cover open, the wireless power transmitter 410 recognizes it as a foreign matter detection mode and performs an operation for detecting foreign matter (S350).

The wireless power transmission unit 410 performs a PING operation while changing a frequency within a set range. The wireless power transmission unit 410 repeats a ping operation for at least five frequencies a predetermined number of times.

The coil voltage detection unit 450 detects the coil voltage while the wireless power transmission unit 410 performs a ping operation (S360).

The controller 190 stores the coil voltage in a memory and selects a maximum value (peak value) for each frequency. As the ping operation is repeated, the controller 190 selects the maximum value for each number of times, sums the maximum values, and calculates an average.

The controller 190 compares the average value of the coil voltage with a preset value (S370), and determines that the foreign matter is located when the coil voltage (average value) is less than the preset value (S380).

Upon detection of foreign matter, the controller 190 outputs an error according to the foreign matter (S390). The controller 190 may output a warning to remove foreign substances.

In addition, the control unit 190 may cut off the supply of operation power to the top cover assembly according to foreign matter detection. Since the standby mode is set and low voltage is being applied while the top cover assembly is separated, the control unit 190 can release the standby mode and cut off power supply to the wireless power transmitter.

If necessary, the control unit 190 may reset the standby mode after a predetermined time has elapsed and detect the foreign matter again to determine whether the foreign matter has been removed.

On the other hand, if the coil voltage (average value) is greater than or equal to the set value, it is determined that no foreign matter is located.

The controller 190 may perform foreign matter detection at predetermined time intervals until the top cover assembly is mounted.

The controller 190 changes from the standby mode to the normal mode when the foreign matter is not detected and the top cover assembly is mounted, and allows operating power to be applied to the top cover assembly.

16 is a flow chart illustrating a foreign matter detection method of the humidifying and cleaning device of the present invention.

As shown in FIG. 16, in a state where the cover is opened (S410), the controller 190 sets a standby mode.

Accordingly, the wireless power transmitter 410 changes the applied voltage to a low voltage as the standby mode is set. The regulator of the wireless power transmitter 410 outputs a voltage of about 6.5V as the standby mode is set.

The power transmission control unit of the wireless power transmission unit recognizes the foreign matter detection mode, changes the duty, and applies a frequency signal within a set range (S440).

The coil voltage detection unit 450 senses the voltage applied to the coil of the power transmission unit 416 (S450).

If the number of frequency changes is less than the set number (S460), the power transmission control unit 411 changes the frequency within the set frequency range (S480). The power transmission control unit 411 increases the frequency change count (S490).

The power transmission control unit 411 applies the changed frequency signal (S440), and the coil voltage detection unit 450 detects the voltage applied to the coil of the power transmission unit 416 (450).

The power transmission control unit 411 detects the coil voltage while changing the frequency by the set number of times within the set frequency range (S440 to S490).

For example, as shown in FIG. 14 described above, the wireless power transmitter 410 applies a signal while changing the frequency to the first to fifth frequencies, and the coil voltage detector 450 detects each coil voltage.

The coil voltage sensing unit applies the coil voltage to the control unit.

When the frequency change is completed within the set frequency range, the control unit 190 selects and stores the highest value, that is, the peak value, among the input coil voltages (S490).

If the wireless power transmission unit changes the frequency by the set number of times within the set frequency range, it is set as one set and repeated a certain number of times (S495).

When the wireless power transmission unit repeats the ping operation a certain number of times, the controller 190 stores voltage peak values for each time and calculates an average thereof (S500).

The control unit 190 compares the average of the calculated coil voltages with the set value (S510), and determines that the foreign matter is located if the coil voltage (average) is less than the set value (S520). It is judged as a normal state (S530).

Accordingly, the controller 190 may output an error according to foreign matter detection, may operate in a normal mode, and may repeat foreign matter detection at predetermined time intervals until the top cover assembly is mounted.

Therefore, the present invention can detect foreign matter in response to the installation position or installation state of the detachable top cover assembly. The present invention can detect foreign substances even in a separated state before the top cover assembly is mounted, and accordingly, a warning about foreign substances is output in advance, thereby solving a power supply problem caused by foreign substances.

Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific embodiments described above, and in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Various modifications and implementations are possible by those skilled in the art, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

100: air clean module 110: base body
120: upper body 130: lower body
150: blower housing 160: display module
200: air wash module
210: visual body 230: top cover assembly
240: control module 245: input unit
260: base connector 270: top connector
300: water tank
410: wireless power transmission unit 411: power transmission control unit
414: regulator 415: switching unit
420: wireless power receiver 490: switching regulator
470: input/output control unit

Claims (20)

In the humidification cleaning device including the air clean module and the air wash module,
a top cover assembly disposed above the water tank provided in the air wash module and mounted to be separable from the water tank;
a wireless power transmission unit that is formed on the base body on which the air clean module is provided and transmits a wireless power signal to the top cover assembly;
a coil voltage detection unit connected to the power transmission unit of the wireless power transmission unit and sensing a coil voltage applied to the power transmission unit; and
When the top cover assembly is separated, a control unit that sets a standby mode to the wireless power transmitter and detects foreign substances in response to the coil voltage,
The wireless power transmitter recognizes the foreign matter detection mode when the top cover assembly is separated and the standby mode is set, controls the voltage applied to the power transmitter by varying the output voltage and frequency,
The wireless power transmitter is a humidifying cleaning device, characterized in that as the standby mode is set, a low voltage lower than the voltage in the normal mode is applied as an output voltage.
delete According to claim 1,
The humidifying cleaning device, characterized in that the wireless power transmission unit reduces the voltage applied to the power transmission unit by changing the duty. According to claim 3,
The humidification cleaning device, characterized in that the wireless power transmission unit changes the duty from 3% to 10%. According to claim 1,
The wireless power transmitter sets a frequency range and changes the frequency within the frequency range so that the voltage applied to the power transmitter is changed. According to claim 5,
The wireless power transmission unit repeats a frequency change within the frequency range a predetermined number of times to perform a ping operation. According to claim 5,
The wireless power transmitter causes a voltage of a predetermined size to be applied to the power transmitter at a first frequency within the frequency range,
The frequency is changed so that a voltage of a predetermined size is applied to the power transmitter at a second frequency,
The humidifying cleaning device characterized in that the frequency change is repeated so that a voltage of a predetermined size is applied to the power transmitter at the nth frequency. According to claim 7,
The wireless power transmission unit repeats the change from the first frequency to the n-th frequency a predetermined number of times. According to claim 5,
The wireless power transmission unit sets the frequency range to be changed in consideration of the resonant frequency of the product and the resonant frequency of the coil and capacitor provided. According to claim 1,
The humidifying cleaning device, characterized in that the control unit determines that foreign substances are located when the coil voltage is less than a preset value. According to claim 10,
The control unit calculates an average of the coil voltages detected through the coil voltage detection unit, and compares the average of the coil voltages with the set value to detect foreign substances. According to claim 11,
The control unit selects a peak value among the coil voltages detected for each frequency changed by the wireless power transmission unit, and calculates an average of the peak values for each cycle as the frequency change is repeated. According to claim 10,
The humidifying cleaning device, characterized in that the control unit sets the set value to a value lower than the coil voltage in consideration of a measurement error based on the coil voltage measured when no foreign matter is located. In the control method of a humidifying cleaning device including a top cover assembly detachably mounted,
detecting whether the top cover assembly is installed;
setting a standby mode when the top cover assembly is separated;
Recognizing it as a foreign matter detection mode, varying the output voltage and frequency of the wireless power transmitter for supplying power to the top cover assembly;
sensing a coil voltage applied to a power transmitter provided in the wireless power transmitter;
detecting foreign matter in response to the coil voltage;
outputting an error when a foreign substance is detected; and
A method of controlling a humidification and cleaning device comprising repeating foreign matter detection until the top cover assembly is mounted when no foreign matter is detected. 15. The method of claim 14,
When recognized in the foreign matter detection mode,
Setting a frequency range based on the resonant frequency; and
The control method of the humidifying cleaning device further comprising controlling the voltage applied to the power transmission unit by changing a frequency within the frequency range. According to claim 15,
A method of controlling a humidifying cleaning device further comprising repeating an operation of changing a frequency within the frequency range a predetermined number of times. According to claim 15,
If the frequency is changed,
applying a voltage of a predetermined magnitude to the power transmitter at a first frequency within the frequency range;
changing a frequency so that a voltage of a predetermined magnitude is applied to the power transmitter at a second frequency;
The control method of the humidifying cleaning device further comprising the step of repeating the frequency change so that a voltage of a predetermined size is applied to the power transmitter at the nth frequency. According to claim 15,
The step of detecting the foreign matter,
A control method of a humidifying cleaning device, characterized in that comparing the sensed coil voltage with a preset value, and determining that a foreign substance is located when the coil voltage is less than the preset value. According to claim 18,
In the case of detecting the foreign matter,
storing the coil voltage sensed according to a frequency change;
Selecting a peak value among coil voltages for each frequency; and
Calculating an average of the peak values for each time as the frequency change is repeated,
A control method of a humidifying cleaning device, characterized in that for comparing the average value of the coil voltage with the set value.

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