JP2018533716A - Air cleaning device - Google Patents

Abstract

In the air cleaning device according to the present invention, an outer shape is formed, and a body case in which a filter installation opening is formed on one side of side surfaces, a filter housing disposed inside the body case, and air pass through A drawer including a frame forming a drawer opening, a filter cover coupled to the frame and covering the filter installation opening, and a filter for filtering air having passed through the drawer opening separably fixed to the frame And a module. The drawer can be pulled out of the internal space of the filter housing through the filter installation opening.
[Selected figure] Figure 6

Description

  The present invention relates to an air purification device provided with a removable filter module for filtering inhaled air.

  The air conditioner controls a temperature of air, a cooling device or a heating device, an air cleaning device that removes foreign matter of air to maintain cleanliness, a humidifying device that provides moisture in air, and removes moisture in air There is a dehumidifier etc.

  The air purification device includes a fan that sucks in and discharges air. The air purification device comprises a filter module for filtering the sucked air.

  Among the conventional air purification devices, there is one in which the filter module is detachably provided in the air purification device. The removable filter module may be separated from the main body for cleaning the filter module or may be coupled to the main body for driving the air cleaner.

  The first problem to be solved by the present invention is to provide a structure that allows the user to easily separate and combine the removable filter module of the air purification device.

  A second problem to be solved by the present invention is to provide a structure capable of separating a plurality of filters at one time and combining them at one time even when there are a plurality of filter modules to be attached and detached.

  A third problem to be solved by the present invention is to provide a drawer structure for fixing and supporting the filter module, forming an opening for a filtration channel, and for attaching and detaching the filter module. .

  When the filter module is equipped with an electrostatic precipitator, there is a risk of being shocked by the high voltage if a situation occurs in which part of the body, such as the user's hand, enters the air inlet opening during operation. . The fourth problem is to provide a structure that shuts off the risk of electric shock during use.

  The problems of the present invention are not limited to the problems mentioned above, and further problems not mentioned will be clearly understood by those skilled in the art from the following description.

  The air cleaning apparatus according to the present invention includes a body case which forms an outer shape and has a filter installation opening formed on one side of the side surfaces, and a filter housing disposed inside the body case.

  In order to solve the first to third problems, an air cleaning device according to the present invention is provided with a frame forming a drawer opening through which air passes, and the frame installed in the frame. And a filter module for filtering the air that has passed through the drawer opening separably fixed to the frame. The drawer can be drawn out from the internal space of the filter housing through the filter installation opening.

  The air cleaning device may be provided to allow air to pass through the drawer opening and the filter module in the vertical direction with the drawer fixed in the inner space of the filter housing.

  The filter module may include a plurality of filters stacked so as to be separable from one another.

  The frame may include a pair of side frames that slide in the front-rear direction with respect to the filter housing to form the drawer opening in a gap.

  The filter cover may be disposed at the front end of the pair of side frames. The frame is disposed between a rear frame arranged to connect between the rear ends of the pair of side frames and a front end of the pair of side frames and connected to the rear surface of the filter cover A front frame can be provided.

  The pair of side frames, the rear frame, and the front frame may form a fixing surface on which the filter module is fixed. The fixing surface of the pair of side frames may have a height difference with at least one of the fixing surface of the rear frame and the fixing surface of the front frame.

  The filter housing may include a pair of drawer guides respectively disposed on both sides of the filter housing to guide pulling and pulling of the frame. The drawer may include a pair of sliders disposed on both sides of the frame and moved along the drawer guide.

  The air cleaning device may further include a mesh filter drawn out of the internal space of the filter housing independently of the drawer. The filter housing may include a mesh filter guide disposed lower than the drawer guide between the pair of drawer guides inside the filter housing. The mesh filter guide guides the drawing and drawing of the mesh filter.

  The filter housing is an air cleaning device further comprising a filter module guide disposed on an inner upper side of the filter housing and guiding movement of an upper surface of the filter module when the filter module is pulled out and retracted together with the drawer. .

  One of the drawer guide and the slider includes a roller, and the other one of the drawer guide and the slider includes a rail portion in contact with the roller. In this case, the rail portion includes a first section and a second section in order to realize a soft drawer and pull-in operation of the drawer and to prevent vertical play when the drawer is settled. be able to.

  The filter module may comprise an electrostatic precipitator. In this case, for the fourth problem, the filter housing switches whether or not power can be applied to the electrostatic precipitator, and the power source can be applied when all are connected in series and all pressed. The first cut-off switch and the second cut-off switch may be provided. The electrostatic precipitator may include a first blocking protrusion protruding from the electrostatic precipitator to press the first blocking switch. Also, the mesh filter may include a second blocking protrusion protruding from the mesh filter to press the second blocking switch.

  The filter cover may be provided on the lower side to be coupled to the frame, and may be formed to extend in a direction perpendicular to the frame.

  The filter cover is disposed between a front surface forming a handle, a rear surface contacting the front surface of the filter module, and the rear surface and the front surface, the upper surface facing the inner upper surface of the filter housing Can be provided.

  The filter cover may comprise a locking device.

  The filter cover may be provided with an upper extension which is formed at a predetermined interval higher than the height of the filter installation opening and which forms a sensor hole. In this case, a sensor module may be further provided, which is disposed on the back side of the upper extension and senses predetermined information from air flowing in through the sensor hole.

  The body case may include a recess formed to mesh with the upper extension when the drawer is fixed in the inner space of the filter housing.

  The filter module is easily separated and cleaned, and it is easy to pull it in again. In particular, when the filter module is provided with a plurality of filters, the plurality of filters can be pulled in and out at one time by placing all of the plurality of filters on the drawer and pulling in and pulling out the drawer.

  Further, when the drawer having the filter module fixed therein is pulled in due to the detailed structure of the drawer, the drawer is drawn to the end while increasing the convenience of the drawing-in operation with sufficient play at the beginning of the drawing-in operation. In the fixed state, there is an effect of minimizing the play and ensuring accurate contact with the power supply terminal and the like.

  In addition, at the time of drawing out of the filter housing of the electrostatic precipitator, the shutoff switch opens the power supply circuit, so that the risk of electric shock when not in use is significantly reduced. Furthermore, in the electrostatic precipitator, the mesh filter is disposed on the inlet side, and the second cutoff switch formed on the mesh filter is realized to make the electric shock risk during use of the electrostatic precipitator remarkable. It has the effect of reducing it.

  In addition, although it is easy to separate and clean the mesh filter separately from the electrostatic precipitator, there is an effect that safety against electric shock can be secured at the same time.

  In addition, even if another fan is not added to the plurality of sensors using the external air, there is an effect that sound pressure is applied to guide the inflow of air, and the cleaning cover of the dust sensor is opened and closed by the filter cover of the drawer. There is an effect that it is not necessary to provide another dust sensor opening / closing structure other than another drawer.

  In addition, the filter cover completely separates the user's hand from the front and the upper side to reduce the risk of electric shock, and yet it is possible to realize a structure that can easily detect information on the front air.

  The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

It is a perspective view of the air conditioner concerning one embodiment of the present invention. It is the disassembled perspective view which isolate | separated the components of the humidifying apparatus 200 of FIG. It is a longitudinal cross-sectional view of the air conditioner of FIG. It is the disassembled perspective view which isolate | separated and showed only the body 130 of FIG. It is the disassembled perspective view which isolate | separated the components of the body 130 of FIG. FIG. 2 is a perspective view of the body 130 of FIG. 1 and the removable filter assembly 10 therein. FIG. 7 is a perspective view of the filter assembly 10 of FIG. 6; FIG. 8 is a bottom view of the filter assembly 10 of FIG. 7; It is A1-A1 longitudinal cross-sectional view which cut off the filter assembly 10 of FIG. FIG. 8 is an exploded perspective view of the filter assembly 10 of FIG. 7; FIG. 7 is a front view of body 130 with filter assembly 10 separated from body 130 of FIG. 6; It is sectional drawing which cut off the body 130 of FIG. 11 perpendicularly. 12 is a cross-sectional view taken along line A2-A2 of FIG. 11, and FIG. 13 is a cross-sectional view taken along line A3-A3 of FIG. It is sectional drawing which cut off the body 130 of FIG. 11 perpendicularly. 12 is a cross-sectional view taken along line A2-A2 of FIG. 11, and FIG. 13 is a cross-sectional view taken along line A3-A3 of FIG. FIG. 12 is a perspective view of the body 130 of FIG. 11 showing guide structures 146, 147 inside the filter housing 140. FIG. 12 is a perspective view of the body 130 of FIG. 11 showing the guide structure 142 inside the filter housing 140. It is a perspective view of the drawer 400 of FIG. It is the perspective view which looked at the drawer 400 of FIG. 16 from the other side. FIG. 17 is an elevational view of the drawer 400 of FIG. 16 viewed from the side. It is A4-A4 sectional drawing which cut off the drawer 400 of FIG. It is A5-A5 sectional drawing which cut off the drawer 400 of FIG. Fig. 17 is an elevational view of the drawer 400 of Fig. 16 as viewed from the front. FIG. 15 is a vertical sectional view showing the arrangement of the drawer guide 147 of the filter housing 140 of FIG. 14 and the slider 414 of the drawer 400. FIG. 16 is a cross-sectional perspective view showing the arrangement of the drawer guide 147 and the slider 414 of FIG. 14 when the front end 400a1 of the drawer opening is disposed forward of the front end 3001 of the mesh filter, the roller 147b contacts the slider 414 It is the figure which showed the point. FIG. 7 is a conceptual view showing a circuit diagram of the electrostatic precipitator 500 in a state where the filter assembly 10 of FIG. 6 is fixed to the internal space of the filter housing 140. FIG. 7 is a conceptual view showing a circuit diagram of the electrostatic precipitator 500 in a state where the filter assembly 10 of FIG. 6 is pulled out of the filter housing 140. FIG. 26 is a perspective view conceptually showing a circuit diagram of charging unit 510 shown in FIGS. 24 and 25. FIG. 26 is an elevation view conceptually showing a circuit diagram of the dust collection portion 540 shown in FIGS. 24 and 25.

  The expressions referring to the directions such as up / down / prev / post / back / left / right mentioned in the following are defined by what is shown in FIG. 1 etc., but this is only for the present invention to be clearly understood. Of course, each direction can be defined differently depending on where the reference is placed for the purpose of explanation. U, D, F, R, Le, and Ri indicated in the drawing are Up, Down, Front, Front, Rear, Left, and Right, respectively. Point to

  The air purification device of the present invention can be used as a partial device in an air conditioner or the like capable of air conditioning, humidification, etc., and can also be used as another independent device for air purification. . In the present embodiment, it is described as an air cleaner attached to an air conditioner, but it is not necessary to be limited to this.

  The potential expressed in the following means electrical potential energy. The voltages expressed below refer to the difference between the potentials of the two points. Electrical connection, which will be expressed in the following, means not only those which are in direct contact with each other to flow electricity, but also those which are connected to the gap via another conductor. Throughout the present invention, the first, second,... Expressions are for the division of components, and are not related to the priority or importance between components or the like.

  Referring to FIGS. 1 to 5, an air conditioner according to an embodiment includes an air cleaning device 100 and a humidifying device 200 placed above the air cleaning device 100. The air cleaner 100 is placed on the bottom, and the humidifier 200 is placed on the air cleaner 100.

  The air cleaner 100 sucks the external air, and then filters and provides the filtered air to the humidifier 200. The air cleaning device 100 removes foreign matter contained in the inflowing external air, and discharges filtered air from which an offensive odor or the like has been removed to the humidifying device 200. The humidifying device 200 receives the filtered air to perform humidification to provide moisture, and discharges the humidified air to the outside.

  The humidifier 200 and the air cleaner 100 can be separated from each other. The user can clean the humidifier 200 and the air cleaner 100 after they are separated from each other. The user can supply water to the water tank 30 disposed inside after separating the humidifying device 200 from the air purifying device 100. The user can also supply water in a state where the humidifier 200 is stacked on the air cleaner 100.

  The air cleaning device 100 forms a suction passage 101 through which external air is drawn. The air cleaning device 100 forms a filtration channel 102 for filtering the drawn air.

  In a state where the humidifying device 200 is stacked on the air purifying device 100, the air conditioner forms a connection flow path 103 through which the air passes in order to supply the air filtered by the air purifying device 100 to the humidifying device 200. Do. The connection flow path 103 formed on the air cleaning device 100 side is defined as a clean connection flow path 104, and the connection flow path formed on the humidification device 200 side is defined as a humidification connection flow path 105. The air cleaner 100 forms a clean connection channel 104. The humidifying device 200 forms a humidifying connection channel 105.

  The humidifying device 200 is formed with a humidifying channel 106 for humidifying the filtered air that has passed through the air purifying device 100. The filtered air is humidified by being supplied with water while passing through the humidification channel 106. A discharge flow channel 107 is formed on the downstream side of the humidification flow channel 106, and guides the air processed by the air cleaning device 100 and the humidification device 200 to be discharged to the outside.

  In the present embodiment, there is a portion where the flow direction of the air is partially broken inside the air cleaning device 100 and the humidifying device 200, but the air flow direction A is the vertical direction as a whole. Specifically, the air flow direction A is a direction from the lower side to the upper side.

  The air conditioner may include a display module 160 for displaying an operating state of the air cleaner to a user.

  The air conditioner may include a handle 129 for lifting the humidifier 200.

  The air cleaning device 100 is provided so as to be separable from the body 130 for guiding the external air drawn in via the suction flow path 101 to the humidifying device 200, and the drawn external air And a blower unit 20 disposed inside the body 130 to provide pressure to the flowing air.

  The air cleaning device 100 is provided on a base 112, and a body 130 is spaced apart from the base 112 to form the suction passage 101. Body 130 is spaced from base 112 so that external air can be drawn through the entire lower surface of body 130. The air cleaner 100 moves the external air drawn from the lower side upward. The air flows from the lower side to the upper side along the filtration flow path 102 against the direction of gravity.

  External air is drawn from all directions on a horizontal plane through the suction flow path 101. A bridge frame 115 is provided between the body 130 and the base 112 to separate the base 112 and the body 130. The bridge frame 115 couples the base 112 and the body 130 and supports the body 130.

  External air flows through the bridge frame 115 to the inlet 111. A plurality of bridges 114 are formed on the upper and lower sides of the bridge frame 115. The number of the bridges 114 is preferably finely arranged so that the user's finger can not enter the suction port 111.

  The body 130 includes a body case 131 that forms the outer shape of the air purification device 100.

  The body 130 may have a circular cross section cut in a plane perpendicular to the vertical direction.

  The filter assembly 10 is detachably coupled to the body 130. The filter assembly 10 may be horizontally separated from the body 130. The filter assembly 10 can be pulled in or out with respect to the body 130 in the front-rear direction. The filter assembly 10 may have a plurality of filters stacked in the vertical direction. The plurality of filters may be stacked and arranged to be separable by the user. The filter assembly 10 may include a drawer 400 for moving the plurality of filters at one time. A detailed description of this will be given later.

  The air cleaning apparatus 100 includes a body case 131 having an outer shape and having a filter installation opening 133 formed on one side (front side). The air purification device 100 includes a filter housing 140 disposed inside the body case 131.

  The filter housing 140 forms an internal space in which the filter assembly 10 is removably housed. The filter housing 140 is provided on the body 130. The filter housing 140 is fixed and disposed inside the body 130. The filter housing 140 forms an internal space in which a filter module such as the electrostatic precipitator 500 can be inserted. The filter module may be drawn into the inner space of the filter housing 140 through the filter installation opening 133. The filter module can be pulled out of the internal space of the filter housing 140 through the filter installation opening 133. The drawer 400 can be drawn into the internal space of the filter housing 140 via the filter installation opening 133. The drawer 400 can be pulled out of the internal space of the filter housing 140 through the filter installation opening 133. The drawer 400 is pulled in and out in the front-rear direction.

  The filter housing 140 and the filter assembly 10 form a filtration channel 102 in a coupled state. The upstream side of the filtration flow path 102 is connected to the suction flow path 101. The downstream side of the filtration flow path 102 is connected to the connection flow path 103. Specifically, the downstream side of the filtration flow channel 102 is connected to the clean connection flow channel 104.

  A filter installation opening 133 is formed on one side (front side) of the body case 131. The filter assembly 10 is inserted into the filter housing 140 through the filter installation opening 133. The filter assembly 10 comprises a filter cover 413 covering the filter installation opening 133.

  A blower housing 150 for guiding the air discharged from the blower unit 20 to the humidifier 200 is provided in the body 130. The blower housing 150 is located above the filter housing 140. The blower housing 150 is fixed to the filter housing 140.

  A blower unit 20 is provided between the filter housing 140 and the blower housing 150. The blower unit 20 provides pressure to flow air.

  The filter assembly 10 is disposed to be orthogonal to the flow of air. The filter assembly 10 is provided to intersect the filtration flow path 102. The filtration flow path 102 is formed in the vertical direction, and the filter assembly 10 is pulled in and out in the horizontal direction.

  The air drawn in through the suction passage 101 flows into the blower unit 20 through the inside of the filter housing 140. The blower unit 20 is disposed on the upper side of the filter housing 140, sucks the air in the filtration flow passage 102, and discharges the air to the humidifying device 200.

  The blower unit 20 includes a blower motor 22 and a blower fan 24. In the present embodiment, the blower motor 22 and the blower fan 24 are both disposed between the blower housing 150 and the filter housing 140, the blower motor 22 is disposed on the upper side, and the blower fan 24 is disposed on the lower side.

  The blower motor 22 is provided on the blower housing 150 and supported by the blower housing 150. The blower fan 24 is assembled with the blower motor 22, and the driving force of the blower motor 22 is transmitted to be rotated. The blower fan 24 is disposed on the filter housing 140 side.

  The blower motor 22 may be at least partially inserted into the blower housing 150 and the blower fan 24 may be at least partially inserted into the filter housing 140 in order to minimize installation space.

  The blower fan 24 sucks in the air filtered to the center and discharges the filtered air in the circumferential direction. In the present embodiment, the blower motor 22 is positioned above the blower fan 24 so as not to generate resistance with air. The blower motor 22 is provided out of the air flow path.

  The air discharged from the blower fan 24 flows along the filter housing 140 and the blower housing 150 to the upper humidifier 200.

  A water tank 30 is disposed on the upper side of the blower unit 20 inside the body 130. The body 130 is formed with a water tank insertion space which is recessed from the upper side so that the water tank 30 can be inserted to the upper side.

  A humidification channel inlet 123 through which air can pass is formed on the circumferential surface of the water tank insertion space, and the humidification channel inlet 123 is in communication with the inside of the water tank 30. In the present embodiment, a humidifying medium 50 containing water is disposed inside the humidifying channel inlet 123.

  Inside the water tank 30, there is provided a watering unit 40 which sucks in the water in the water tank 30, lifts the sucked water upward, and jets the pumped water to the outside. Below the water tank 30, a watering motor 42, which is a power source of the watering unit 40, is provided. The watering motor 42 is physically separated from the blower motor 22. The blower motor 22 and the watering motor 42 can be independently controlled.

  The humidifier 200 comprises a visual body 210 which is separably stacked on the air cleaner 100 and is made of a transparent material, and a top cover assembly 230 which is separably coupled to the visual body 210. In the present embodiment, the discharge channel 107 is formed between the top cover assembly 230 and the visual body 210. The discharge flow path 107 is connected to the downstream side of the humidification flow path 106. The connection channel 103 is connected to the upstream side of the humidification channel 106. The top cover assembly 230 is formed with a water supply channel 109 capable of supplying water from the outside.

  Referring to FIGS. 6 to 15, the body 130 forms the filter installation opening 133 on one side of the outer peripheral surface. The internal space of the filter housing 140 and the external space are connected via the filter installation opening 133. The filter assembly 10 is drawn into the interior space of the filter housing 140 via the filter mounting opening 133.

Guides 142, 146, 147 may be formed on both sides of the inner surface of the filter housing 140 to guide the sliding of the filter assembly 10. The guides 142, 146, 147 can comprise at least one upper side 146, 147 a that provides a friction surface to support the filter assembly 10. The guides 142, 146, 147 can comprise at least one lower side 142 pushing the filter assembly 10 from the top to the bottom. The guides 142, 146, 147 can comprise at least one roller 147b or bearing. The guides 142, 146, 147 can comprise drawer guides 147 that guide the sliding of the drawer 400. The guides 142, 146, 147 can include mesh filter guides 146 that guide the sliding of the mesh filter 300. The guides 142, 146, 147 can comprise a filter module guide 142 that guides the sliding of the top surface of the filter module 350, 400 that settles to the drawer. (Refer to FIG. 14 and FIG. 15)
The left and right sides of the inner space of the filter housing 140 (the side where the guides are disposed) prevent the flow of the filter assembly 10 in the left and right direction.

  The air cleaner 100 includes a power terminal 148 for supplying power to the electrostatic precipitator 500. The air cleaner 100 includes a ground terminal 149 for providing a ground to the electrostatic precipitator 500. The power terminal 148 and the ground terminal 149 are disposed on the inner side of the filter housing 140.

  The power supply terminal 148 may include a charging unit power supply terminal 148 a for supplying power to the charging unit 510 and a dust collection unit power supply terminal 148 b for supplying power to the dust collection unit 540. The ground terminal 149 may include a charging unit ground terminal 149 a for providing a ground to the charging unit 510 and a dust collection unit ground terminal 149 b for providing a ground to the dust collection unit 540.

  The drawer 400 includes a filter cover 413 that covers the filter installation opening 133. The filter cover 413 includes an upper extension 413 d which is formed at a predetermined interval higher than the height of the filter installation opening 133. The upper extension forms a sensor hole 413a.

  The air cleaning apparatus 100 may include sensor modules 135, 136, and 137 provided on the body 130. The sensor modules 135, 136, 137 at least partially include portions exposed to external air. The sensor modules 135, 136, 137 sense predetermined information from the external air. The sensor modules 135, 136, 137 may be disposed inside the body 130. The sensor modules 135, 136, 137 may be disposed above the filter installation opening 133. The sensor modules 135, 136, 137 may be arranged to be visually blocked by the filter cover 413 when the filter assembly 10 is coupled with the body 130. The sensor modules 135, 136, 137 may be disposed behind the upper extension 413 d of the filter cover 413. The sensor modules 135, 136, and 137 sense predetermined information from the air flowing in through the sensor hole 413a. The blower unit 20 may be controlled based on the information sensed by the sensor modules 135, 136, 137.

  The sensor modules 135, 136, 137 may include a dust sensor 135 for sensing the dust concentration of the external air. The sensor modules 135, 136, 137 can include a humidity sensor 136 that senses the humidity of the external air. The sensor modules 135, 136, 137 may include an odor sensor 137 that senses the odor of external air.

  The upper portion of the filter installation opening 133 forms a recess 134 in which the outer peripheral surface of the body 130 is recessed by a distance corresponding to the thickness of the upper extension 413 d of the filter cover 413. The body case 131 includes a recess 134 formed to engage with the upper extension 413 d in a state where the drawer 400 is fixed in the internal space of the filter housing 140. The filter cover 413 meshes with the recess 134 when coupled to the body 130. The upper extension 413 d engages with the recess 134 when coupled to the body 130.

  The settled state of the drawer 400 in the interior space of the filter housing 140 means that the drawer 400 has been fully retracted to such an extent that it can not be drawn further into the filter housing 140. The state in which the drawer 400 is being drawn into the filter housing 140 or the state in which the drawer 400 is being drawn out of the filter housing 140 is not the fixed state.

  The sensor modules 135, 136, 137 can comprise multiple sensors. Multiple sensors can be arranged laterally. The plurality of sensors may be arranged laterally from the rear side of the depression 134.

  The body case 131 forms holes 135a, 136a and 137a in front of the plurality of sensors. In the recess 134, respective holes formed in front of the respective sensors can be arranged laterally.

  A humidity sensor hole 136 a is formed in the depressed portion 134. A humidity sensor 136 is disposed behind the depression 134. The humidity sensor 136 is disposed behind the humidity sensor hole 136a. The humidity sensor hole 136a may be formed by densely arranging a plurality of small holes.

  An odor sensor hole 137 a is formed in the depressed portion 134. An odor sensor 137 is disposed behind the depression 134. The odor sensor 137 is disposed after the odor sensor hole 137a. The odor sensor hole 137a may be formed by gathering a plurality of small holes.

  The body case 131 forms a cleaning hole 135 a for cleaning the inside of the dust sensor 135. The body case 131 includes an inflow hole 135 b for causing the dust sensor 135 to flow air. Body case 131 forms an outflow hole 135 c for allowing air to flow out of dust sensor 135. The inflow hole 135b, the cleaning hole 135a, and the outflow hole 135c are disposed in order from the lower side to the upper side.

  The dust sensor 135 may include a heating unit (not shown) that adds heat to the air flowing into the dust sensor 135. The heating unit may be disposed in an internal space where the cleaning hole 135a is opened and closed. If the air is heated by the heating unit, air may flow from the lower side to the upper side by convection. By the convection, the air flows into the lower inflow hole 135b, and the air flows out into the upper outflow hole 135c.

  The dust sensor 135 is disposed behind the recess 134. The dust sensor 135 is disposed behind the plurality of holes 135a, 135b and 135c.

  A sensor hole 413a is formed in a portion of the filter cover 413 corresponding to the position of the dust sensor 135 so that external air is supplied to the dust sensor 135 even when the filter cover 413 blocks the dust sensor 135. The sensor hole 413a is formed with a slit long in the left-right direction at a position corresponding to at least one of the inflow hole 135b and the outflow hole 135c. The plurality of sensors may be arranged in the lengthwise direction of the slit.

  The sensor holes 413a may be formed at positions corresponding to the inflow holes 135b and the outflow holes 135c. The sensor holes 413a may be formed at positions corresponding to the inflow holes 135b and the outflow holes 135c.

  The sensor hole 413a may be formed long in the direction in which the plurality of sensors are arranged. The sensor hole 413a may be a slit formed long in the horizontal direction.

  The sensor holes 413a may be formed in a plurality. The sensor holes 413a may be formed by vertically separating a plurality of slits. The sensor hole 413a includes a first sensor hole 413a1 disposed on the upper side and a second sensor hole 413a2 disposed on the lower side. The first sensor hole 413a1 and the second sensor hole 413a2 may be formed side by side. The first sensor hole 413a1 may be formed laterally long. The second sensor hole 413a2 may be formed laterally long. The first sensor hole 413a1 is formed long along the direction in which the rear sensors are arranged. The second sensor hole 413a2 is formed long along the direction in which the rear sensors are arranged. The first sensor hole 413a1 is formed at a height corresponding to the outflow hole 135c. The second sensor hole 413a2 is formed at a height corresponding to the inflow hole 135b.

  The upper extension 413 d may be provided to open and close the cleaning hole 135 a by pulling out and pulling in the drawer 400. With the drawer 400 fixed inside the filter housing 140, the rear side of the upper extension 413d closes the cleaning hole 135a. With the drawer 400 pulled out of the filter housing 140, the rear side of the upper extension 413d opens the cleaning hole 135a.

  The filter assembly 10 comprises filter modules 500, 350 for filtering air. The filter assembly 10 comprises a drawer 400 supporting the filter modules 500, 350. The filter assembly 10 includes a mesh filter 300 that removes foreign matter in the air as the air passes between meshes of the mesh type.

  The drawer 400 is provided to be able to be pulled out of the internal space of the filter housing 140 through the filter installation opening 133. The filter modules 500, 350 are fixed to the drawer 400. The filter modules 500 and 350 are provided so as to be able to withdraw from the internal space of the filter housing 140 via the filter installation opening 133 together with the drawer 400.

  The drawer 400 supports at least a portion of the filter module 500, 350. The drawer 400 is slid along the drawer guide 147 of the filter housing 140. The drawer 400 forms a drawer opening 400a through which air passes. The drawer opening 400a is formed on a horizontal surface. The air drawn in via the suction flow path 101 passes the drawer opening 400 a in the vertical direction. Air passes through the drawer opening 400a from the lower side to the upper side.

  The drawer 400 comprises a frame 410 forming a drawer opening through which air passes. The drawer 400 is provided with a filter cover 413 that covers the filter installation opening. Filter cover 413 is coupled to frame 410.

  The frame 410 may be disposed below the drawer 400. The filter cover 413 is disposed on the front of the drawer 400. The frame 410 is provided such that the filter cover 413 is coupled to the front end. The filter cover 413 is provided such that the frame 410 is coupled to the lower side. The filter cover 413 may be formed to extend in a direction perpendicular to the frame 410. The frame 410 can be disposed on a horizontal plane. The filter cover 413 may be disposed on the same plane as the outer surface of the body case 131.

  The filter modules 500, 350 are separably fixed to the frame 410. The filter modules 500, 350 filter the air that has passed through the drawer opening 400a. With the drawer 400 fixed in the internal space of the filter housing 140, air is provided to pass vertically through the drawer opening 400a and the filter modules 500 and 350. The air passes through the drawer opening 400 a from the lower side to the upper side and is then filtered through the filter modules 500 and 350.

  The filter modules 350, 500 may comprise a plurality of filters separably laminated to one another. The filter modules 350, 500 may comprise an electrostatic precipitator 500. The filter module 350, 500 may comprise a photocatalytic filter 350.

  The electrostatic precipitator 500 charges dust particles in the air, collects the charged dust particles, and filters the air.

  The photocatalyst filter 350 applies a photocatalyst having deodorizing performance to the porous base to physically / chemically remove odor components in the air.

  The photocatalytic filter 350 includes a photocatalytic filter frame 353 forming a periphery on the horizontal cross section of the filtration flow path 102, and a photocatalytically active portion 355 supported by the photocatalytic filter frame 353. The photocatalytic action portion 355 can be manufactured by applying a known photocatalyst having deodorizing performance to a base member having a void that forms a part of the filtration channel 102, and a member having a photocatalytic property is used. It can also be manufactured by forming an air gap.

  The photocatalyst may include activated carbon. The activated carbon can cause odor particles to be collected by the photocatalytic action unit 355 by physical adhesion. The odor particles may be collected in the photocatalytic action unit 355 by chemical bonding using activated carbon or other photocatalysts. By separating the photocatalytic filter 350 from the body 130 and the filter assembly 10 and exposing the photocatalytic filter 350 to sunlight or the like, odorous particles collected in the photocatalytic action part 355 can be removed.

  The drawer 400 can support the electrostatic precipitator 500. The electrostatic precipitator 500 can support the photocatalytic filter 350. The mesh filter 300, the electrostatic precipitator 500, and the photocatalytic filter 350 may be sequentially disposed upstream to downstream based on the air flow direction A. In the filter assembly 10, the mesh filter 300 may be disposed at the lowermost portion, the electrostatic precipitator 500 may be disposed on the upper side of the mesh filter 300, and the photocatalytic filter 350 may be disposed at the uppermost portion.

  The filter modules 350, 500 can be separably fixed to the drawer 400. The electrostatic precipitator 500 can be separably fixed to the drawer 400. The photocatalytic filter 350 can be separably fixed on the upper side of the electrostatic precipitator 500.

  The mesh filter 300 is pulled out of the internal space of the filter housing 140 independently of the drawer 400. The mesh filter 300 is disposed in the direction in which the inlet 506 of the electrostatic precipitator 500 is formed.

  The mesh filter 300 is disposed below the electrostatic precipitator 500. Mesh filter 300 is arranged in the direction in which charging unit 510 is arranged in electrostatic precipitator 500. The mesh filter 300 is disposed in the direction in which the inlet 506 of the electrostatic precipitator 500 is formed in the electrostatic precipitator 500. The mesh filter 300 is provided to be stacked with the electrostatic precipitator 500.

  The mesh filter 300 is disposed below the drawer 400. The mesh filter 300 is provided to be pulled in or out independently of the drawer 400. The mesh filter 300 is provided to be drawn in or drawn out independently of the electrostatic precipitator 500. Only one of the electrostatic precipitator 500 and the mesh filter 300 may be drawn into or out of the filter housing 140.

  The mesh filter 300 comprises a mesh filter cover 313 forming a front surface. With the mesh filter 300 and the drawer 400 fixed to the filter housing 140, the mesh filter cover 313 forms an appearance on the surface continuous with the front surface of the filter cover 413. The mesh filter cover 313 forms a mesh filter cover handle 313a which is sunk downward from above the upper side surface.

  With the mesh filter 300 and the drawer 400 fixed to the filter housing 140, the filter cover 413 has a handle exposure portion 413c in which a part of the lower end is recessed so that the mesh filter cover handle 313a can be exposed to the outside. Form The handle exposed portion 413c has an open front and a lower surface. The handle exposing portion 413 c may be recessed rearward of the front surface of the filter cover 413 to the rear end of the mesh filter cover handle 313 a. The user can put his hand on the handle exposed portion 413c and hang the hand on the mesh filter cover handle 313a.

  The mesh filter 300 comprises a mesh frame 315 disposed around the filtration channel 102 on a horizontal plane behind the mesh filter cover 313. The mesh filter 300 can include a mesh auxiliary frame 316 that divides the horizontal cross section of the filtration channel 102 inside the perimeter provided by the mesh frame 315. The mesh auxiliary frame 316 divides the horizontal cross section of the filtration channel 102 into a plurality of parts.

  The mesh filter 300 includes a mesh 318 that removes and collects foreign matter in the air passing therethrough. Mesh 318 is supported by mesh frame 315 and mesh auxiliary frame 316. The mesh 318 is disposed on the same plane as the mesh frame 315 and the mesh auxiliary frame 316. Foreign matter collected by the mesh 318 can be removed by separating the mesh filter 300 from the body 130 and cleaning.

  Referring to FIGS. 16 and 21, the frame 410 includes a pair of side frames 410 a that slide in the front-rear direction with respect to the filter housing 140. The pair of side frames 410a form a drawer opening 400a in the gap. The pair of side frames 410 a is formed to extend in the front-rear direction. The filter cover 413 is disposed at the front end of the pair of side frames 410a. The pair of side frames 410 a is disposed below the filter modules 350 and 500. The pair of side frames 410 a is disposed on the upper side of the mesh filter 300.

  The frame 410 may include a rear frame 410b disposed to connect between the rear ends of the pair of side frames 410a. The rear frame 410b is formed to extend in the left-right direction. The left end of the rear frame 410b is coupled to the rear end of the left side frame 410a. The right end of the rear frame 410b is coupled to the rear end of the right side frame 410a. The drawer opening 400 a is formed between the rear frame 410 b and the filter cover 413. The rear frame 410 b is disposed below the filter module 350, 500. The rear frame 410 b is disposed on the upper side of the mesh filter 300.

  The frame 410 may include a front frame 410c disposed to connect between the front ends of the pair of side frames 410a. The front frame 410 c is coupled to the rear surface of the filter cover 413. The front frame 410c is formed to extend in the left-right direction. The left end of the front frame 410c is coupled to the front end of the left side frame 410a. The right end of the front frame 410c is coupled to the front end of the right side frame 410a. The drawer opening 400a is formed between the rear frame 410b and the front frame 410c. The front frame 410 c is disposed below the filter modules 350 and 500. The front frame 410 c is disposed on the upper side of the mesh filter 300.

  The frame 410 forms a fixing surface 411 on which the filter modules 350, 500 are fixed. The fixing surface 411 forms an upper surface that supports the filter module 350, 500. The fixing surfaces 411 may be formed on the left and right sides of the frame 410, respectively. The fixing surface 411 is in contact with part of the lower surface of the filter module 350, 500 to support the filter module 350, 500.

  The filter modules 350, 500 are separably fixed to the frame 410. The electrostatic precipitator 500 can be separably fixed to the frame 410. The pair of side frames 410a, the rear frame 410b, and the front frame 410c form a fixing surface 411 on which the filter modules 350 and 500 are fixed. The pair of side frames 410a form a first fixing surface 411a contacting the lower side of the filter module 350, 500 on the upper side. The rear frame 410b forms a second fixing surface 411b on the upper side in contact with the lower surface of the filter module 350,500. The front frame 410c forms a third fixing surface 411c on the upper side in contact with the lower side of the filter module 350,500. The fixing surface 411 can include a first fixing surface 411a, a second fixing surface 411b, and a third fixing surface 411c.

  A drawer opening 400 a may be formed at a central portion of the fixing surface 411. The first fixing surface 411a, the second fixing surface 411b, and the third fixing surface 411c may be disposed to surround the drawer opening 400a. A guide member (not shown) may be provided that protrudes upward along the circumference of the fixing surface 411 and contacts the side surface of the filter module 350, 500. The guide member guides the fixing operation of the filter modules 350 and 500 so that the filter modules 350 and 500 can contact the fixing surface 411.

  The fixing surface 411a of the pair of side frames 410a may have a height difference with at least one of the fixing surface 411b of the rear frame 410b and the fixing surface 411c of the front frame 410c. The fixing surfaces 411a of the pair of side frames 410a may be disposed at a position higher than the fixing surface 411b of the rear frame 410b. The fixing surfaces 411a of the pair of side frames 410a may be disposed higher than the fixing surface 411c of the front frame 410c. The lower side surfaces of the filter modules 350, 500 are formed in such a shape as to engage with the plurality of fixing surfaces 411a, 411b, 411c formed so as to cause the height difference.

  The filter cover 413 includes a front surface 4131 that forms a front surface. The front surface 4131 forms the sensor hole 413a. The front portion 4131 includes a handle 413 b. The filter cover handle 413b may be formed by a part of the front surface 4131 being recessed rearward. When the filter cover handle 413b is pulled, the drawer 400 is pulled. A lock release button 417b described later can be disposed on the filter cover handle 413b. The front surface portion 4131 can form a handle exposing portion 413c described later. The front surface 4131 may be formed to extend to the outer surface of the body case 131. The front surface 4131 may be bent to project forward from the horizontal cross section. The front surface 4131 includes the upper extension 413 d disposed on the upper side.

  The filter cover 413 includes a rear surface 4132 that contacts the front surface of the filter module 350, 500. The rear surface 4132 forms at least a part of the rear surface of the filter cover 413. The rear surface 4132 guides the position of the front surface of the filter module 350, 500. The rear surface 4132 is formed in a shape corresponding to the shape of the front surface of the filter module 350, 500. In the present embodiment, the front surfaces of the filter modules 350 and 500 form a vertical plane, and the shape of the rear surface 4132 also forms a vertical plane.

  The filter cover 413 can include an upper surface 4133 facing the inner upper surface of the filter housing 140. The top surface 4133 is disposed between the rear surface 4132 and the front surface 4131. In the upper surface portion 4133, a locking portion 417a described later is disposed. The filter housing 140 forms a locking groove 143 at a position corresponding to the locking portion 417a so that the locking portion 417a can be locked. The rear end of the top surface 4133 can be connected to the top end of the rear surface 4132. The front end of the top surface 4133 is connected to the rear surface of the front surface 4131. The front end of the top surface 4133 is connected to the lower end of the upper extension 413 d.

  Referring to FIG. 9, drawer 400 includes a locking device 417 that allows drawer 400 to be fixedly locked to the inside of filter housing 140. The locking device 417 fixes the drawer 400 with the drawer 400 fixed inside the filter housing 140. The locking device 417 can be disposed on the filter cover 413.

  The locking device 417 includes a locking portion 417a that is locked to the filter housing 140 in a state where the drawer 400 is fixed to the internal space of the filter housing 140. The locking portion 417a is disposed on the upper surface 4133. The locking groove 143 is formed on the upper surface of the internal space of the filter housing 140. The locking portion 417a is formed to protrude upward. The upper end of the locking portion 417 a is disposed at a position higher than the upper surface 4133. The rear side surface of the locking portion 417a forms an inclined surface that approaches the rear side as it goes downward. The inclined surface is pushed by the upper end of the filter installation opening 133 in the process of drawing the drawer 400 in the rear direction, and the locking portion 417a moves downward. With the drawer 400 fixed in the internal space of the filter housing 140, the locking portion 417a is inserted into the locking groove 143 and moves upward. If the locking portion 417a is inserted into the locking groove 143, the drawer 400 can not be pulled out even if the drawer 400 is pulled forward.

  In a state where the locking portion 417a is inserted into the locking groove 143, the locking device 417 can be provided with a locking release button 417b for moving the locking portion 417a downward to release the locking. . The locking portion 417a releases the locking of the locking portion 417a. The locking portion 417a and the locking release button 417b are structurally connected. The locking portion 417a may be provided to move downward when the locking release button 417b is pressed. The lock release button 417b can be formed to be pushed downward. The unlocking button 417b may be disposed on the lower side of the filter cover handle 413b.

  The locking device 417 can include an elastic portion 417c that applies a restoring force to the upper side when the locking device 417 is pushed downward. The elastic portion 417c may be disposed below the locking release button 417b. The elastic portion 417c may be disposed to support the lower side of the lock release button 417b.

  Referring to FIGS. 14, 15, 17 to 20, 22 and 23, the sliding structure between filter housing 140 and drawer 400 and the sliding between filter housing 140 and mesh filter 300. The dynamic structure is as follows.

  The filter housing 140 includes a pair of drawer guides 147 disposed on both sides of the filter housing 140. A pair of drawer guides 147 guide the pulling and pulling of the frame 410. The drawer 400 includes a pair of sliders 414 disposed on both sides of the frame 410. The pair of sliders 414 is moved along the pair of drawer guides 147. The slider 414 is movably supported by the drawer guide 147. The slider 414 is formed below the pair of side frames 410a.

  The drawer guide 147 can include a rail portion 147a. The drawer guide 147 can include a roller 147b. The rail portion 147a can be formed to extend in the front-rear direction. The rail portion 147 a forms an upper side surface that contacts the slider 414. The roller 147 b can be disposed at the front end of the drawer guide 147. The direction of the rotation axis of the roller 147b is the left-right direction. The roller 147 b of the drawer guide 147 contacts the rail portion 414 a of the slider 414.

  The slider 414 can include a rail portion 414a. The slider 414 can comprise a roller 414b. The rail portion 414a may be formed to extend in the front-rear direction. The rail portion 414 a forms a lower side surface in contact with the drawer guide 147. The roller 414 b can be disposed at the rear end of the slider 414. The direction of the rotation axis of the roller 414b is the left-right direction. The roller 414 b of the slider 414 contacts the rail portion 147 a of the drawer guide 147.

  The roller 414 b is movable in the front-rear direction along the rail portion 147 a. The rail portion 147a supports the lower side of the roller 414b. The rail portion 414b is movable in the front-rear direction by the roller 147b. The roller 147 b supports the rail portion 414 b.

  The filter housing 140 comprises a filter module guide 142 that guides the movement of the upper surface of the filter module 350, 500 when the filter module 350, 500 is pulled out and retracted with the drawer 400. The filter housing 140 includes a pair of filter module guides 142 disposed on both sides of the filter housing 140. The filter module guide 142 is disposed on the upper inside of the filter housing 140. The filter module guide 142 forms a lower surface that contacts the upper surface of the filter module 350, 500.

  With the drawer 400 fixed inside the filter housing 140, the support point of the roller 147b is positioned forward, and the support point of the rail portion 147a is positioned rearward. With the support points spaced apart in the front-rear direction, the drawer 400 is stably supported.

  While the drawer 400 is pulled out of the filter housing 140, the support point of the roller 147b maintains its position, but the support point of the rail portion 147a moves forward while the roller 414b moves forward. The separation distance between the support point of the roller 147b and the support point of the rail portion 147a is narrowed, and the front portion of the drawer 400 is protruded without the support point. If the electrostatic precipitator 500 and the photocatalyst filter 350 are fixed to the drawer 400, the upper surface of the photocatalyst filter 350 contacts the filter module guide 142 of the filter housing 140, and the front of the drawer 400 is rotated downward. To prevent

  The filter housing 140 comprises a mesh filter guide 146 which guides the withdrawal and withdrawal of the mesh filter 300. The filter housing 140 includes a pair of mesh filter guides 146 disposed on each side of the filter housing 140. The mesh filter 300 includes a sliding portion 315 a that allows the mesh filter 300 to move in the front-rear direction with respect to the filter housing 140. The mesh filter 300 includes a pair of sliding parts 315 a arranged on both sides of the mesh frame 315.

  The sliding portion 315 a is formed on the lower side of the mesh frame 315. The sliding portion 315 a provides a lower surface in contact with the mesh filter guide 146. The mesh filter guide 146 is provided with a mesh filter guide 146 that guides the movement of the sliding portion 315a. The mesh filter guide 146 provides an upper surface in contact with the sliding portion 315a. The lower side surface of the sliding portion 315 a can move in the front-rear direction while sliding on the upper side surface of the mesh filter guide 146.

  The sliding portion 315 a is disposed between the pair of sliders 414 when viewed from the lower side. The sliding portion 315 a on one side is disposed inside the slider 414 on the same side. When viewed from the top, the mesh filter guide 146 is disposed between the pair of drawer guides 147 inside the filter housing. The mesh filter guide 146 on one side is disposed inward of the drawer guide 147 on the same side.

  The mesh filter guide 146 is disposed lower than the drawer guide 147. A suction port 111 connected to the suction flow path 101 is formed between the pair of mesh filter guides 146.

  One of the drawer guide 147 and the slider 414 includes the rollers 147 b and 414 b, and the other one of the drawer guide 147 and the slider 414 includes the rail portions 414 a and 147 a with which the rollers 147 b and 414 b contact. Prepare. Although the first section and the second section described below can be provided in the rail portion 414a of the slider 414 as in this embodiment, the rail portion 147a of the drawer guide 147 in another embodiment Even if equipped with the same function. Hereinafter, although this embodiment is described, this is explained to other embodiments in which the first section and the second section are provided on the rail portion 147 a of the drawer guide 147.

  Referring to FIGS. 22 and 23, when the drawer 400 starts to be drawn into the internal space of the filter housing 140, the rail portion 414a forms a flat surface from the first point p1 contacted to the roller 147b to the predetermined point p2. A first section 414a1. The rail portion 414a forms a flat surface from a predetermined point p1 to a second point p2 where the front end 400a1 of the drawer opening 400a is in contact with the roller 147b before being drawn into the internal space of the filter housing 140. 414a1 is provided. The rail portion 414a is pulled from the first point p1 in contact with the roller 147b to the front end 400a1 of the drawer opening 400a into the inner space of the filter housing 140 when the drawer 400 starts to be drawn into the inner space of the filter housing 140. The first section 414 a 1 forms a flat surface up to a second point p 2 that contacts the roller 147 b.

  Referring to FIGS. 22 and 23, the rail portion 414a is a frame from the second point p2 to a third point p3 where the drawer 400 contacts the roller 147b in a state where the drawer 400 is fixed in the internal space of the filter housing 140. The second section 414 a 2, 414 a 3 has a height different from that of the first section 414 a 1 so as to pull up 410 upward. The second sections 414a2 and 414a3 have a height different from that of the first section 414a1 so as to pull the drawer 400 upward. In the present embodiment in which the first section 414a1 and the second sections 414a2 and 414a3 are formed in the slider 414, the lower surface of the second sections 414a2 and 414a3 is from the lower surface of the first section 414a1. It is placed at a low position. In another embodiment in which the first section and the second section are formed in the drawer guide 147, the upper surface of the second section is positioned higher than the upper surface of the first section. Be placed.

  Thus, when the drawer 400 to which the filter module 350 or 500 is fixed starts to be drawn into the internal space of the filter housing 140, the insertion start operation is performed such that there is sufficient play in the vertical direction of the drawer 400 to which the filter module 350 or 500 is fixed. Has the effect of making

  Furthermore, when the front end 400a1 of the drawer opening 400a is drawn into the internal space of the filter housing 140, the drawer 400 to which the filter module 350, 500 is fixed is in close contact with the upper surface of the filter housing 140 as much as possible. Prevents the phenomenon that the front end tilts downward. This has the effect of preventing the front end 400a1 of the drawer opening 400a from colliding with the front end of the lower mesh filter 3001 (or the front end of the filter installation opening).

  Furthermore, when the drawer 400 is fixed in the internal space of the filter housing 140, the drawer 400 to which the filter modules 350 and 500 are fixed is pulled up to reduce the vertical play between the drawer 400 and the inner surface of the filter housing 140. . Thus, the fixed state of the drawer 400 can be accurately maintained, and the gap between the drawer 400 and the filter housing 140 can be limited to a predetermined degree, and the electrical terminals can be accurately contacted. .

  Referring to FIGS. 22 and 23, the second sections 414a2 and 414a3 have relatively large height differences with the height of the first sections 414a1, and are relatively close to the second point p2. Of the first height forming portion 414a2 arranged in the second section 414a1 and the height of the first section portion 414a1 have a relatively small height difference, and are arranged relatively close to the third point p3 And a height formation portion 414a3. In the present embodiment in which the second sections 414a2 and 414a3 are formed on the slider 414, the lower side surface of the first height forming portion 414a2 is disposed at a position lower than the lower side surface of the second height forming portion 414a3. Ru. In another embodiment in which the second section is formed in the drawer guide 147, the upper side surface of the first height forming portion is disposed at a position higher than the upper side surface of the second height forming portion. Ru.

  The second sections 414a2 and 414a3 have inclined surfaces inclined in the direction of the third point p3 starting from the second point p2. The first height formation portion 414a2 includes an inclined surface which is inclined in the direction of the third point p3 starting from the second point p2. The first height formation portion 414a2 includes an inclined surface which is inclined in the direction of the second point p2 starting from the point at which the first height formation portion 414a2 and the second height formation portion 414a3 are in contact with each other.

  Referring to FIGS. 17-20, drawer 400 can include a play prevention portion 412 that reduces play between the inner surface of filter housing 140 and the outer surface of drawer 400. The play preventing portion 412 is projected in a direction perpendicular to the direction in which the drawer 400 is pulled out. When the direction in which the drawer 400 is pulled out is the front-rear direction, the direction perpendicular to the direction in which the drawer 400 is pulled out may be the vertical direction or the left-right direction. The anti-play portion 412 may be formed in the shape of a rib extending from the frame 410 and extending in the front-rear direction.

  The play prevention unit 412 may include a side play prevention unit 412 a that protrudes from at least one of both side surfaces in a direction perpendicular to the direction in which the drawer 400 is pulled out. The side play prevention portion 412 a reduces the play between the inner side of the filter housing 140 and the both sides of the drawer 400. The pair of side frames 410 a may include a pair of side anti-slip portions 412 a that respectively protrude toward the side surface of the filter housing 140. The side play prevention part 412a may be formed in a rib shape which protrudes from the side frame 410a to the side of the filter housing 140 and extends in the front-rear direction.

  The play prevention unit 412 may include an up and down play prevention unit 412 b that protrudes in the vertical direction. The upper and lower play preventing portions 412 b reduce the vertical play between the inner surface of the filter housing 140 and the outer surface of the drawer 400. The pair of side frames 410 a may include a pair of upper and lower play preventing portions 412 b that respectively protrude downward toward the drawer guide 147. The upper and lower play preventing portion 412b may be formed in a rib shape that protrudes downward from the side frame 410a and extends in the front-rear direction. The second sections 414a2 and 414a3 can be regarded as pointing to the same configuration as the upper and lower play preventing portion 412b.

  The play prevention portion 412 contacts the inner surface of the filter housing 140 with the drawer 400 fixed in the inner space of the filter housing 140, and contacts the inner surface of the filter housing 140 while the drawer 400 is pulled out of the filter housing 140. Is prepared to be released. That is, the play prevention part 412 is formed of only a partial section of the vertical sections of the side frame 410a. As a result, at the time of the initial operation of inserting the drawer 400 into the filter installation opening 133, while the play is convenient, the play is reduced and the drawer 400 is accurate when the drawer 400 is fixed in the internal space of the filter housing 140. It has the effect of stably fixing it at a certain position.

  The play prevention portion 412 may include an inclined portion having a protruding portion formed to be inclined such that the play is gradually reduced while the drawer 400 is drawn into the inner space of the filter housing 140.

  The play prevention portion 412 is disposed on the front side of the portion inserted into the inner space of the filter housing 140 in a state where the drawer 400 is fixed to the inner space of the filter housing 140. The play prevention part 412 is disposed on the front side of the frame 410. The play prevention part 412 is disposed on the front side of the side frame 410a.

  7 to 10, the electrostatic precipitator 500 includes a charging unit 510 for charging dust particles in the air, a dust collection unit 540 for collecting dust particles charged by the charging unit 510, and And a case 501, 502 for receiving the dust collection part 540 therein. The cases 501 and 502 can form the appearance of the electrostatic precipitator 500. The charging unit 510 may be disposed on the lower side, and the dust collecting unit 540 may be disposed on the upper side.

  An electric dust collector handle 503 is formed in the cases 501 and 502 so that the electric dust collector 500 can be separated and lifted from the drawer 400. The electrostatic precipitator handle 503 may be formed in a pair on the left and right sides of the cases 501 and 502. The electrostatic precipitator handle 503 may be formed by sinking the surfaces of the cases 501 and 502.

  The cases 501 and 502 may include a charging case 501 forming a space for housing the charging unit 510 therein, and a dust collection case 502 forming a space for housing the dust collecting unit 540 therein. The charging case 501 may be disposed on the lower side, and the dust collection case 502 may be disposed on the upper side. The cases 501 and 502 are formed such that the space accommodating the charging unit 510 and the space accommodating the dust collection unit 540 are connected to each other.

  In the present embodiment, the charging case 501 is disposed at the lower portion, the dust collection case 502 is disposed at the upper portion, the charging portion 510 is disposed at the lower portion, and the dust collecting portion 540 is disposed above the charging portion 510. But not necessarily limited to this.

  The cases 501 and 502 form an inlet 506 into which air having dust particles flows, and an outlet 507 from which the air inside the case 501 and 502 flows out. The cases 501 and 502 can be formed with a plurality of inlets 506. In the cases 501 and 502, a plurality of outlets 507 can be formed. In the present embodiment, the inlet 506 is formed on the lower side of the charging case 501, and the outlet 507 is formed on the upper side of the dust collection case 502.

  The overall air flow direction A will be described as follows. Air flowing into the air conditioner from the outside through the case suction flow passage 101 flows into the filtration flow passage 102. The air flowing into the filtration channel 102 passes through the mesh 318 and then passes through the drawer opening 400a. The air having passed through the drawer opening 400 a flows into the inside of the cases 501 and 502 through the inlet 506 of the electrostatic precipitator. The air that has flowed into the internal space of the case 501, 502 flows through the charging port 510 and the dust collection section 540 sequentially, and then flows upward through the outlet 507. The air flowing upward passes through the photocatalytic action unit 355.

  In other embodiments, the arrangement of each component may be changed, and each component may be arranged sideways, but also in this case, the air is directed from the charging unit 510 toward the dust collection unit 540. Is set to be

  Referring to FIG. 26, the charging unit 510 can include a wire discharge electrode 521 to which a high voltage is applied and a counter electrode plate 523 spaced apart from the wire discharge electrode 521. The high voltage is a value such that the voltage between the wire discharge electrode 521 and the counter electrode plate 523 is extremely large and a discharge occurs in the wire discharge electrode 521.

  A plurality of counter electrode plates 523 can be disposed. The counter electrode plates 523 may be disposed to face each other with the wire discharge electrodes 521 therebetween.

  The wire discharge electrode 521 can be disposed in a plurality. A plurality of wire discharge electrodes 521 can be arranged side by side and spaced apart from one another. The counter electrode plate 523 may be disposed between the plurality of wire discharge electrodes 521 perpendicularly to the direction in which the wire discharge electrodes 521 are arranged.

  In FIG. 26, several wire discharge electrodes 521 and several counter electrode plates 523 are exemplarily alternately spaced in the air flow direction A and the vertical direction X, but a larger number of wire discharge electrodes 521 are arranged. And counter electrode plates 523 may be alternately arranged.

  The wire discharge electrode 521 and the counter electrode plate 523 can be fixed to the charging case 501. A gap maintaining structure (not shown) may be provided to maintain a gap between the plurality of wire discharge electrodes 521 and the plurality of counter electrode plates 523.

  When a voltage is applied to the wire discharge electrode 521, corona discharge is generated between the wire discharge electrode 521 and the counter electrode plate 523. Dust particles in the air are charged while passing through the charging unit 510.

  Referring to FIG. 27, the dust collection unit 540 includes an electrode 540 a that collects charged dust particles. The dust collection unit 540 includes a plurality of electrodes 541 and 542 for generating an electric field to collect charged dust particles. The electrode 540a may be formed in a thin plate shape having a width, a length and a thickness. The electrode 540a may be formed in an electrode type.

  The electrodes 541 and 542 include a high potential electrode 541 to which a relatively high potential is applied, and a low potential electrode 542 to which a relatively low potential is applied to the high potential electrode 541. The plurality of high potential electrodes 541 and the plurality of low potential electrodes 542 can be arranged side by side so that the length directions Y coincide with each other.

  The electrodes 541 and 542 are arranged in a plurality so as to face each other to form a gap S. A plurality of high potential electrodes 541 and a plurality of low potential electrodes 542 are alternately formed in the direction S perpendicular to the width direction Z and the length direction Y so as to form a gap S.

  The circuit configuration of the electrostatic precipitator 500 will be described below with reference to FIGS. 24 to 27.

  The body 130 includes power supply terminals 148 a and 148 b for supplying power to the charging unit 510 and the dust collecting unit 540. The body 130 includes ground terminals 149 a and 149 b for supplying the ground to the charging unit 510 and the dust collecting unit 540. The power terminals 148 a, 148 b are disposed in the filter housing 140. The ground terminals 149 a, 149 b are disposed in the filter housing 140.

  The power supply terminals 148 a and 148 b may include a charging unit power supply terminal 148 a for supplying power to the charging unit 510 and a dust collection unit power supply terminal 148 b for supplying power to the dust collection unit 540. The ground terminals 149a and 149b may include a charging unit ground terminal 149a for providing a ground to the charging unit 510, and a dust collection unit ground terminal 149b for providing a ground to the dust collection unit 540.

  The body 130 includes a high voltage generator 581 that generates a high voltage. The body 130 includes a high voltage generator 581 a that generates a high voltage applied to the charging unit 510. The body 130 includes a high voltage generator 581 b that generates a high voltage applied to the dust collection unit 540. The high voltage generator 581a is electrically connected to the power supply terminals 148a and 148b.

  In the present embodiment, the high voltage generator 581 a and the high voltage generator 581 b refer to one high voltage generator 581, and the high voltage generator 581 respectively supplies power in parallel to the charging unit 510 and the dust collection unit 540. Construct a line to apply. The body 130 includes a power supply line 585 for applying power to the high voltage generator 581.

  The electrostatic precipitator 500 includes power receiving terminals 518 and 548 and ground receiving terminals 519 and 549 respectively corresponding to the power terminals 148a and 148b and the ground terminals 149a and 149b. The power supply terminals 518 and 548 are disposed in the electrostatic precipitator 500. The ground accommodation terminals 519 and 549 are disposed in the electrostatic precipitator 500.

  In the filter housing 140, power terminals 148a and 148b connected to the high voltage generator 581 to supply power to the charging unit 510 and the dust collecting unit 540 are disposed. The body 130 may include ground terminals 149 a and 149 b connected to the ground 582 to provide the charging unit 510 and the dust collecting unit 540 with a ground.

  In the filter housing 140, a charging unit power terminal 148a connected to the high voltage generator 581a and supplying power to the charging unit 510 is disposed. In the filter housing 140, a dust collection unit power terminal 148b connected to the high voltage generator 581b to supply power to the dust collection unit 540 is disposed. In the filter housing 140, a charging unit ground terminal 149a connected to the ground 582a to provide the charging unit 510 with a ground is disposed. The filter housing 140 is provided with a dust collecting portion grounding terminal 149 b connected to the ground 582 b to provide the dust collecting portion 540 with a ground.

  Power supply accommodating terminals 518 and 548 which are in contact with the power supply terminals 148a and 148b and connect the power to the charging unit 510 and the dust collecting unit 540 are disposed on the outer surfaces of the cases 501 and 502. Ground accommodation terminals 519 and 549 are disposed on the outer side surfaces of the cases 501 and 502 to be in contact with the ground terminals 149a and 149b and to electrically connect the charging unit 510 and the dust collection unit 540 to the ground.

  The power supply accommodation terminals 518 and 548 include a charging unit power supply accommodation terminal 518 and a dust collection unit power supply accommodation terminal 548. The ground accommodation terminals 519 and 549 include a charging unit ground accommodation terminal 519 and a dust collection unit ground accommodation terminal 549.

  A charging unit power supply accommodation terminal 518 is disposed on the outer surface of the case 501, 502 in contact with the charging unit power supply terminal 148a to connect the charging unit 510 with a power supply. A dust collection portion power supply accommodation terminal 548 is disposed on the outer surface of the case 501, 502 in contact with the dust collection portion power terminal 148b to connect the power supply to the dust collection portion 540. A charging unit ground accommodation terminal 519 is disposed on the outer surface of the cases 501 and 502, in contact with the charging unit ground terminal 149a to electrically connect the charging unit 510 to the ground. A dust collection portion ground accommodation terminal 549 is disposed on the outer surface of the case 501, 502 in contact with the dust collection portion ground terminal 149b to electrically connect the dust collection portion 540 to the ground.

  In the electrostatic precipitator 500, the side on which the power receiving terminals 518 and 548 are disposed is opposite to the side on which the grounding terminals 519 and 549 are disposed. In the electrostatic precipitator 500, the side on which the charging unit power supply accommodation terminal 518 and the dust collection unit power supply accommodation terminal 548 are disposed is opposite to the side on which the charging unit ground accommodation terminal 519 and dust collection unit grounding accommodation terminal 549 are disposed. Be done.

  The charging unit power supply accommodation terminal 518 and the dust collection unit power supply accommodation terminal 548 may be disposed apart from each other in a large angle direction on the same horizontal plane. The charging unit ground accommodation terminal 519 and the dust collection unit ground accommodation terminal 549 may be disposed apart from each other in the large angle direction on the same horizontal plane.

  When the drawer 400 is pulled into the internal space of the filter housing 140, the power terminals 148a, 148b and the power accommodating terminals 518, 548 contact each other, and the ground terminals 149a, 149b and the grounding terminals 519, 549 contact each other Do. With the drawer 400 fixing the electrostatic precipitator 500 settled in the internal space of the filter housing 140, the power terminals 148a, 148b and the power accommodation terminals 518, 548 contact each other, and the ground terminals 149a, 149b. And the ground accommodating terminals 519, 549 contact each other.

  Among the outer surfaces of the cases 501 and 502, charging unit ground accommodation terminals 519 and dust collection unit grounding accommodation terminals 549 are provided at points corresponding to the charging unit grounding terminals 149a and the dust collecting unit grounding terminals 149b, respectively.

  Among the outer surfaces of the cases 501 and 502, the side on which the charging unit power receiving terminal 518 and the dust collecting unit power receiving terminal 548 are disposed is the side on which the charging unit ground receiving terminal 519 and the dust collecting unit ground receiving terminal 549 are disposed. And can be opposite each other. The power accommodation terminals 518 and 548 and the ground accommodation terminals 529 and 549 may be disposed on left and right sides of the case 501 and 502, respectively. The charging unit power supply accommodation terminal 518 and the dust collection unit power supply accommodation terminal 548 may be disposed on the same side of the cases 501 and 502. The charging unit ground accommodation terminal 519 and the dust collection unit ground accommodation terminal 549 may be disposed on the same side of the cases 501 and 502.

  Specifically, the power terminals 148a and 148b and the ground terminals 149a and 149b may be brought into contact with the power receiving terminals 518 and 548 and the ground terminals 519 and 549, respectively, only when the cases 501 and 502 are fixed to the body 130. Power supply terminals 518 and 548 and ground terminals 519 and 549 are disposed.

  The power supply terminals 148 a and 148 b are disposed on the inner side of the filter housing 140 in the direction perpendicular to the direction in which the drawer 400 is pulled in and out. The ground terminals 149 a and 149 b are disposed on the inner side of the filter housing 140 at the side perpendicular to the direction in which the drawer 400 is pulled in and out.

  The power terminals 148 a and 148 b are disposed on any one of the inner side surfaces of the filter housing 140. The ground terminals 149 a and 149 b are disposed on the other one of the inner side surfaces of the filter housing 140. The ground terminals 149 a and 149 b may be disposed on the inner side of the filter housing 140 opposite to the side on which the power terminals 148 a and 148 b are disposed.

  The charging unit power supply terminal 148 a and the dust collection unit power supply terminal 148 b may be disposed on the same side surface of the inner side surfaces of both sides of the body 130. The charging unit ground terminal 149 a and the dust collection unit ground terminal 149 b may be disposed on the same side of the inner side of the body 130.

  When the drawer 400 is fixed in the internal space of the filter housing 140, the charging portion power supply terminal 148a and the charging portion power storage terminal 518 are in contact, and the charging portion ground terminal 149a and the charging portion ground reception terminal 519 are in contact. In this case, a high voltage is applied to charging unit 510.

  When the drawer 400 is fixed in the internal space of the filter housing 140, the dust collection portion power terminal 148b and the dust collection portion power storage terminal 548 contact each other, and the dust collection portion ground terminal 149b and the dust collection portion ground reception terminal 549 Contact. In this case, a high voltage is applied to the dust collection unit 540.

  When drawer 400 is pulled out from the internal space of filter housing 140, charging unit power supply terminal 148a and charging unit power supply accommodation terminal 518 are separated, and charging unit ground terminal 149a and charging unit ground accommodation terminal 519 are separated. Thus, the voltage application to the charging unit 510 is interrupted.

  When the drawer 400 is pulled out from the internal space of the filter housing 140, the dust collecting portion power supply terminal 148b and the dust collecting portion power supply accommodating terminal 548 are separated, and the dust collecting portion grounding terminal 149b and the dust collecting portion ground accommodating terminal 549 are separated. Are separated, and the voltage application to the dust collection unit 540 is cut off.

  The electrostatic precipitator 500 includes a ground wire 583a electrically connecting the counter electrode plate 523 and the ground 582a. The electrostatic precipitator 500 includes a high voltage line 584a electrically connecting the wire discharge electrode 521 and the high voltage generator 581a.

  The charging unit power supply terminal 148a and the charging unit power supply accommodation terminal 518 are disposed on the high voltage line 584a. The charging unit power supply terminal 148a and the charging unit power supply accommodation terminal 518 function as switches for electrically opening and closing the high voltage line 584a. The charging unit ground terminal 149a and the charging unit ground accommodation terminal 519 are disposed on the ground line 583a. The charging unit ground terminal 149a and the charging unit ground accommodation terminal 519 function as switches for electrically opening and closing the ground line 583a.

  The electrostatic precipitator 500 includes a ground line 583 b electrically connecting the low potential electrode 542 and the ground 582 b. The electrostatic precipitator 500 includes a high voltage line 584 b electrically connecting the high potential electrode 541 and the high voltage generator 581 b.

  The dust collection unit power supply terminal 148 b and the dust collection unit power supply accommodation terminal 548 are disposed on the high voltage line 584 b. The dust collection unit power supply terminal 148 b and the dust collection unit power supply accommodation terminal 548 function as switches for electrically opening and closing the high voltage line 584 b. The dust collection unit ground terminal 149 b and the dust collection unit ground accommodation terminal 549 are disposed on the ground wire 583 b. The dust collection unit ground terminal 149 b and the dust collection unit ground accommodation terminal 549 function as a switch that electrically opens and closes the ground wire 583 b.

  Referring to FIGS. 11 to 13, the charging unit power supply terminal 148 a and the dust collection unit power supply terminal 148 b are disposed on a plane perpendicular to the direction in which the filter assembly 10 slides. The charging unit ground terminal 149a and the dust collection unit ground terminal 149b are disposed on a plane perpendicular to the direction in which the filter assembly 10 slides.

  The charging unit power receiving terminal 518 and the dust collecting unit power receiving terminal 548 are disposed on a plane perpendicular to the direction in which the filter assembly 10 slides. The charging unit grounding receiving terminal 519 and the dust collecting unit grounding receiving terminal 549 are disposed on a plane perpendicular to the direction in which the filter assembly 10 slides.

  The charging unit power supply terminal 148a and the dust collection unit power supply terminal 148b are arranged such that there is a positional difference with respect to the vertical direction in which the drawer 400 is pulled in and out. The charging unit ground terminal 149a and the dust collection unit ground terminal 149b are arranged such that there is a positional difference with respect to the vertical direction in which the drawer 400 is pulled in and pulled out.

  The direction in which the electrostatic precipitator 500 is pulled in and pulled out may be in the front-rear direction. In this case, the charging unit power supply terminal 148 a and the dust collection unit power supply terminal 148 b are disposed at different heights on the same inner side surface of the filter housing 140. The charging unit ground terminal 149 a and the dust collection unit ground terminal 149 b are disposed at different heights on the same inner side surface of the filter housing 140. The charging unit power supply accommodation terminal 518 and the dust collection unit power supply accommodation terminal 548 are disposed at different heights on the same side surface of the electrostatic precipitator 500. The charging unit ground accommodation terminal 519 and the dust collection unit ground accommodation terminal 549 are disposed at different heights on the same side surface of the electrostatic precipitator 500.

  Only the charging portion power supply terminal 148a contacts the charging portion power supply terminal 148a on the longitudinal movement path of the charging portion power accommodation terminal 518 due to the pulling out and drawing of the drawer 400 and the longitudinal movement path of the dust collecting portion power accommodation terminal 548 The collecting unit power supply terminal 148a and the collecting unit power supply terminal 148b may be arranged to have a difference in height so that only the dust collecting unit power supply terminal 148b is in contact.

  By preventing the electrostatic precipitator 500 from coming into contact with terminals which do not correspond to each other in the process of drawing in and drawing out, it is possible to reduce the wear phenomenon due to friction and to prevent the application of an undesired power source. In particular, in the process of pulling out the electrostatic precipitator 500, even if the drawer 400 is not in a fixed state in the internal space of the filter housing 140, if power is applied by contacting the terminals, the user may be shocked by electric shock. It is possible, but it can be prevented.

  Referring to FIGS. 24 to 27, the filter housing 140 includes a cutoff switch 145 that determines whether the electrostatic precipitator 500 is operable. The shutoff switch 145 can be disposed on the filter housing 140. The shutoff switch 145 switches whether the power can be supplied to the high voltage generator 581. The shutoff switch 145 is provided so that the power of the high voltage generator 581 can be applied when pressed. The shutoff switch 145 can switch whether or not the power can be supplied to a component (for example, a sensor, a display, a motor, etc.) requiring another power supply of the electrostatic precipitator 500.

  The shutoff switch 145 enables the air cleaner 100 to operate only when the electrostatic precipitator 500 and the drawer 400 are fixed to the filter housing 140. The shutoff switch 145 disables the operation of the air cleaning device 100 when the electrostatic precipitator 500 and the drawer 400 are separated from the filter housing 140. The shutoff switch 145 disables the operation of the air cleaning device 100 when the electrostatic precipitator 500 and the drawer 400 are not completely coupled to the filter housing 140 (unfixed state).

  The shutoff switch 145 is disposed on the power supply line 585. The shutoff switch 145 switches whether the power can be applied to the high voltage generators 581a and 581b. The shutoff switch 145 may be provided to cause the power supply line 585 to be connected when pressed and to shut off the power supply line 585 when not pressed.

  The shutoff switch 145 may be disposed on the inner side of the filter housing 140. The shutoff switch 145 may be disposed on the inner side of the filter housing 140 in the direction in which the cases 501 and 502 are inserted into the body 130. The shutoff switch 145 may be disposed on the rear side of the inner side of the filter housing 140. The shutoff switch 145 may be formed such that it can be pushed in the direction in which the cases 501, 502 are inserted into the body 130.

  The filter assembly 10 comprises a blocking protrusion 144 configured to push the blocking switch 145. The blocking protrusion 144 is disposed on the side in the direction in which the drawer 400 is inserted into the filter housing 140. The blocking protrusion 144 is protruded in the direction in which the electrostatic precipitator 500 is drawn. The blocking protrusion 144 is provided to push the blocking switch 145 with the filter assembly 10 fixed in the interior space of the filter housing 140. When the blocking protrusion 144 presses the blocking switch 145, the power supply line 585, which has been opened by the blocking switch 145, is short-circuited, and power can be applied to the high voltage generator 581. Accordingly, when the user contacts the power terminals 148a and 148b and the ground terminals 149a and 149b while the filter assembly 10 is separated from the filter housing 140, an electric shock can be prevented. The electrostatic precipitator 500 can include a blocking protrusion 144. The blocking protrusion 144 may be provided to push the blocking switch 145 with the drawer 400 fixed in the inner space of the filter housing 140.

  A plurality of blocking switches 145 may be connected in series with one another. The filter housing 140 may include a first blocking switch 145a and a second blocking switch 145b connected in series with each other. The first shutoff switch 145a and the second shutoff switch 145b are provided such that power can be applied when they are all pressed. The first cutoff switch 145 a and the second cutoff switch 145 b switch whether or not the power can be applied to the electrostatic precipitator 500.

  The blocking protrusion 144 is a first blocking protrusion 144 a projected from the filter assembly 10 to press the first blocking switch 145 a and a second protrusion projected from the filter assembly 10 to press the second blocking switch 145 b. And a blocking protrusion 144b.

  The electrostatic precipitator 500 may include a first blocking protrusion 144 a that is protruded to press the first blocking switch 145 a in a state where the drawer 400 is fixed in the internal space of the filter housing 140. The first blocking protrusion 144 a is protruded in a direction in which the electrostatic precipitator 500 is drawn.

  The mesh filter 300 may include a second blocking protrusion 144b which is protruded to press the second blocking switch 145b in a state where the mesh filter 300 is fixed in the inner space of the filter housing 140. The second blocking protrusion 144b is protruded in the direction in which the mesh filter 300 is drawn.

  Referring to FIGS. 24 to 27, the electrostatic precipitator 500 turns on so that the high potential electrode 541 and the low potential electrode 542 are shorted to each other, or off so that they are not shorted to each other. And a shorting switch 600. Specifically, the plurality of high potential electrodes 541 may be connected in parallel, and may include a shorting line 600 a electrically connected to one terminal of the shorting switch 600 at a parallel connection point of the high potential electrodes 541. Also, the plurality of low potential electrodes 542 may be connected in parallel, and may include a shorting line 600 b electrically connected to the other terminal of the short circuit switch 600 at the parallel connection point of the low potential electrodes 542. The shorting switch 600 is disposed on the shorting lines 600a and 600b.

  The shorting switch 600 is turned off when the drawer 400 having the electrostatic precipitator 500 fixed thereon is fixed to the filter housing 140, and is turned on when the drawer 400 having the electrostatic precipitator 500 fixed thereto is separated from the filter housing 140. Be prepared to be

  When the drawer 400 is separated from the internal space of the filter housing 140, the high potential electrode 541 and the low potential electrode 542 are shorted to each other, and the charge accumulated in the dust collection portion 540 is removed. When the shorting switch 600 is released from pressing, the high potential electrode 541 and the low potential electrode 542 are shorted.

  In the state where the drawer 400 is fixed in the internal space of the filter housing 140, the short circuit of the high potential electrode 541 and the low potential electrode 542 is released, and the dust collecting portion 540 is charged and the electric field can be generated.

  The filter housing 140 includes a shorting protrusion 141 that pushes the shorting switch 600 in a state where the drawer 400 is fixed in the inner space of the filter housing 140. The shorting protrusion 141 is protruded in the direction in which the drawer 400 is pulled out.

  The shorting protrusion 141 is disposed on the inner surface of the filter housing 140 that is opposite to the direction in which the drawer 400 is inserted into the filter housing 140. The shorting protrusion 141 is disposed on the rear side of the inner side of the filter housing 140.

  The shorting switch 600 includes a pressing unit 626 exposed at a position corresponding to the shorting protrusion and pressed in a state in which the cases 501 and 502 are separated from the body 130. The short circuit switch 600 may include an elastic body disposed opposite to the pressing surface of the pressing unit 626. The elastic body is elastically compressed when the pressing portion 626 is pressed, and restored when the pressing portion 626 is pressed and released.

  The shorting switch 600 may be provided in a plurality. The electrostatic precipitator 500 can include a plurality of short circuit switches.

  The plurality of shorting switches 600 are connected in parallel to one another on the shorting lines 600a and 600b. The high potential electrode 541 and the low potential electrode 542 are shorted to each other even if at least one of the short circuit switches 600-1 and 600-2 is shorted. As a result, even if any one of the plurality of shorting switches 600 does not perform a normal shorting operation due to foreign matter adhesion or a failure, if at least one other performs a normal shorting operation, the high potential is generated. The electrode 541 and the low potential electrode 542 may be shorted to each other to further enhance the safety of the user.

  In the present embodiment, the electrostatic precipitator 500 includes two short circuit switches 600-1 and 600-2. The two shorting switches 600-1 and 600-2 can be spaced apart laterally. The electrostatic precipitator 500 can include a first short circuit switch 600-1 and a second short circuit switch 600-2.

  The first short circuit switch 600-1 includes a first pressing portion 652-1 disposed on the outer surface of the case 501, 502. The second short circuit switch 600-2 includes a second pressing portion 652-2 disposed on the outer side surface of the cases 501 and 502. The first pressing unit 652-1 and the second pressing unit 652-2 are disposed apart from each other.

  The filter housing 140 includes a plurality of shorting protrusions 141a and 141b formed at positions corresponding to the plurality of pressing portions 652-1 and 652-2, respectively. The plurality of shorting protrusions 141a and 141b may be a first shorting protrusion 141a provided to press the first shorting switch 600-1 and a second shorting protrusion 141a may be provided to press the second shorting switch 600-2. And a shorting protrusion 141b. In a state where the drawer 400 having the electrostatic precipitator 500 fixed thereon is fixed in the internal space of the filter housing 140, the plurality of shorting protrusions push the plurality of pressing portions 652-1 and 652-2, respectively.

Claims (20)

An air cleaning device,
A body case that forms an outer shape and has a filter installation opening formed on one side of the side surfaces;
A filter housing disposed inside the body case;
A frame comprising: a frame forming a drawer opening through which air passes; and a filter cover coupled to the frame and covering the filter installation opening;
A filter module for filtering the air passing through the drawer opening separably fixed to the frame;
The air cleaner according to claim 1, wherein the drawer is capable of being pulled out of the internal space of the filter housing through the filter installation opening.   The air purification apparatus according to claim 1, wherein air is vertically passed through the drawer opening and the filter module in a state where the drawer is fixed in the inner space of the filter housing.   The air cleaning device according to claim 1, wherein the filter module comprises a plurality of filters stacked so as to be separable from one another.   The air purification device according to claim 1, wherein the frame includes a pair of side frames that are slid in the front-rear direction with respect to the filter housing to form the drawer opening in a gap. The filter cover is disposed at the front end of the pair of side frames,
The frame is
A rear frame disposed to connect between the rear ends of the pair of side frames;
The air purification apparatus according to claim 4, further comprising: a front frame disposed between front ends of the pair of side frames and coupled to a rear surface of the filter cover. The pair of side frames, the rear frame, and the front frame form a fixing surface on which the filter module is fixed,
The air cleaning apparatus according to claim 5, wherein the fixing surfaces of the pair of side frames have a height difference with at least one of the fixing surface of the rear frame and the fixing surface of the front frame. The filter housing is
The filter housing includes a pair of drawer guides respectively disposed on both sides of the filter housing to guide pulling and pulling of the frame.
The air cleaner according to claim 1, wherein the drawer further comprises a pair of sliders disposed respectively on both sides of the frame and moved along the drawer guide. It further comprises a mesh filter drawn from the inner space of the filter housing independently of the drawer;
The air according to claim 7, wherein the filter housing further comprises a mesh filter guide disposed lower than the drawer guide between the pair of drawer guides inside the filter housing and guiding extraction and retraction of the mesh filter. Cleaning device. The filter housing is disposed on the upper inside of the filter housing,
The air purification device according to claim 7, further comprising a filter module guide that guides the movement of the upper surface of the filter module when the filter module is pulled out and retracted together with the drawer. Any one of the drawer guide and the slider includes a roller,
The other one of the drawer guide and the slider includes a rail portion in contact with the roller,
The rail portion is
When the drawer begins to be drawn into the interior space of the filter housing, the front end of the drawer opening is contacted with the roller from the first point contacted by the roller before being drawn into the interior space of the filter housing A first section forming a flat surface to a second point;
A height different from that of the first section so that the frame is pulled upward from the second point to a third point where the drawer is fixed to the inner space of the filter housing while being in contact with the roller. And the second section portion. The second section portion is
A first height formation portion having a relatively large height difference with the height of the first section portion and disposed at a position relatively close to the second point;
11. A second height forming portion having a relatively small height difference with the height of the first section and being disposed relatively close to the third point. An air cleaner as described. The filter module comprises an electrostatic precipitator,
The mesh filter further includes a mesh filter which is drawn out of the internal space of the filter housing independently of the drawer and disposed in the direction in which the inlet of the electrostatic precipitator is formed.
The filter housing switches whether or not power can be applied to the electrostatic precipitator, and the first cut-off switch and the second switch are configured to be able to apply the power when the power is connected in series and all pressed. Equipped with a shutoff switch
The electrostatic precipitator further includes a first blocking protrusion protruding from the electrostatic precipitator to push the first blocking switch when the drawer is pulled into the internal space of the filter housing.
2. The mesh filter according to claim 1, further comprising: a second blocking protrusion protruding from the mesh filter to push the second blocking switch when the mesh filter is drawn into the inner space of the filter housing. An air cleaner as described.   The air cleaning apparatus according to claim 1, wherein the filter cover is provided such that the frame is coupled to the lower side, and the filter cover extends in a direction perpendicular to the frame. The filter cover is
The front part that forms the handle,
A rear face contacting the front face of the filter module;
The air purification device according to claim 1, further comprising: an upper surface portion disposed between the rear surface portion and the front surface portion and facing an inner upper surface of the filter housing. The filter cover is
A locking portion disposed on the upper surface portion and locked to the filter housing in a state where the drawer is fixed to the internal space of the filter housing;
The air purification device according to claim 14, further comprising: a lock release button disposed on the handle and configured to release the lock with the lock portion. The filter cover includes an upper extension which is formed a predetermined distance higher than the height of the filter installation opening and which forms a sensor hole.
The air purification apparatus according to claim 1, further comprising a sensor module disposed on the back side of the upper extension and sensing predetermined information from air flowing in through the sensor hole. The sensor module comprises a plurality of sensors,
The air purification device according to claim 16, wherein the sensor hole is elongated in a direction in which the plurality of sensors are arranged.   The air purification apparatus according to claim 16, wherein the body case includes a recessed portion formed to engage with the upper extension in a state where the drawer is fixed in an internal space of the filter housing. The sensor module includes a dust sensor that detects dust concentration.
The body case forms a cleaning hole for cleaning the inside of the dust sensor, an inflow hole for letting air flow into the dust sensor, and an outflow hole for letting air flow out of the dust sensor.
The sensor holes are formed at positions corresponding to the inflow holes and the outflow holes.
The air purification device according to claim 16, wherein the upper extension is provided to open and close the cleaning hole by pulling out and pulling in the drawer. The dust sensor includes a heating unit that adds heat to the air flowing into the dust sensor,
The inflow hole, the cleaning hole, and the outflow hole are disposed in order from the lower side to the upper side,
The sensor hole is formed with a slit long in the left and right direction at a position corresponding to at least one of the inflow hole and the outflow hole.
20. The air purification device of claim 19, wherein the sensor module comprises a plurality of sensors arranged in a lengthwise direction of the slit.