Patent Description:
A cleaning appliance is an appliance that sucks dusts or foreign matters to clean the room. A conventional cleaning appliance generally includes a housing having an intake port and an exhaust, a fan for flowing air flowed into the intake port to the exhaust, a separator for separating the foreign matters from the air flowing by the fan, a filter located between the separator and the fan to filter the foreign matters from the air passed through the separator, and a handle disposed on the housing.

The conventional cleaning appliance has a disadvantage in that a flow path between the air passed through the fan and the exhaust is complicated (a flow path resistance is high), so that output of the fan should kept higher than necessary. In addition, although the conventional cleaning appliance has an input unit for inputting a control command, but does not have a display for informing a user of information associated with an operation of the cleaning appliance. A cleaning appliance according to the preamble of claim <NUM> is already known e.g. from <CIT>.

A purpose of the present application is to provide a cleaning appliance that may minimize a flow path resistance of air flowed by a fan.

Further, another purpose of the present application is to provide a cleaning appliance including a display for delivering information to a user.

Further, another purpose of the present application is to provide a cleaning appliance in which cleaning of a filter is easy.

The present application provides a cleaning appliance including: a hollow housing; a housing wall provided in the housing to divide an internal space of the housing into a first space and a second space; a wall through-hole provided in the housing wall; an intake port, the first space communicating with an exterior of the housing via the intake port; an exhaust provided in a housing through-hole provided in the housing such that the second space communicates with the exterior of the housing through the housing through-hole, the exhaust including: a housing cover configured to be received in the housing through-hole; a cover through-hole provided in the housing cover; and an exhaust hole provided the housing cover, the second space communicating with the exterior of the housing through the exhaust hole; a fan including: a casing configured to be coupled to at least one the housing wall or a surface facing the second space such that the casing is positioned in the wall through-hole; a casing intake hole provided in the casing, the first space communicating with an interior of the casing through casing intake hole; a casing exhaust hole provided in the casing; and an impeller to generate an air flow into the interior of the casing via the casing intake hole and out of the interior of the casing via the casing exhaust hole; a separator provided in the first space to form a flow path for air from the intake port to the casing intake hole, wherein the separator separates a matter from the air flow using centrifugal force; and a display including: a display panel; a display housing coupled to the display panel; and at least one housing fastening extension that is configured to couple the display housing to at least one of the housing wall or an inner circumferential surface of the housing such the display panel is positioned to be exposed to the exterior of the housing through the cover through-hole.

The cover through-hole may be defined at a center of the housing cover.

The cover through-hole may be defined in a space defined between a center of the housing cover and an edge of the housing cover and has a ring or an arc shape.

The cleaning appliance may further include: a filter including: a filter body positioned below the housing cover to filter air flowing to the exhaust hole; and a filter body through-hole provided in the filter body and positioned to correspond to the cover through-hole.

The display housing may include: a support body coupled to the display panel and configured to be inserted into the filter body through-hole and the cover through-hole such that the support body is positioned above the casing exhaust hole, and coupled to the second space by the housing fastening extension; a support body communicating hole provided in a bottom face of the support body such that at least a portion of the air discharged from the casing exhaust hole flows into the support body through the support body communicating hole; and a filter communicating hole provided in the support body to guide air flowing into the support body communicating hole toward the filter body.

The display housing may further include: a panel mounting region defined in a face of the support body facing the cover through-hole of and configured to provide a space in which the display panel is mounted.

The panel mounting region may further include at least one of a groove defined by concavely bending the face of the support body, or a through-hole in the support body that is connected to the support body communicating hole.

The cleaning appliance may further include: a display cover that is coupled to the support body, positioned above the display panel, and made of a transparent material.

The housing fastening extension detachably may fix the support body to the housing wall.

The cleaning appliance may further include: a casing cover provided in the second space to be positioned between the display panel and the casing exhaust hole, and to form a rear face of the casing; and a filter first communicating hole provided in the casing cover to discharge air from the casing exhaust hole to an exterior of the casing cover.

The display housing may include: a support body that is coupled to the display panel and is configured to be inserted into the filter body through-hole and the cover through-hole such that the support body is positioned above the casing cover, and is coupled to the second space by the housing fastening extension; and a filter second communicating hole provided in the display housing and positioned to guide air discharged from the filter first communicating hole to the filter body.

The casing cover may be fixed to the housing wall, and the support body may be fixed to the inner circumferential face of the housing.

The cleaning appliance may further include: a mounting body provided in the wall through-hole and having a mounting space defined therein; a mounting body through-hole defined in the mounting body and positioned to be in communication with the casing intake hole; a communication hole provided in the mounting body and positioned to allow air to flow between the separator and the mounting space; and a second filter provided in the mounting space to filter air flowing from the communication hole to the casing intake hole.

The present application provides a cleaning appliance including: a cylindrical housing having a first end and second end; a wall provided in the housing to an internal space of the housing into a first space provided between the wall and the first end, and a second space provided between the wall and the second end, the wall including a wall through-hole; an intake port, air being introduced into the first space via the intake port; a housing cover configured to be received at the second end of the housing, the housing cover including a cover through-hole and an exhaust hole through which air from the second space flows out of the housing; one or more cyclones provided in the first space to receive air from the intake port and to output filtered air; a fan including: a casing positioned in the wall through-hole; a casing intake hole provided in the casing, filtered air from the one or more cyclones being received in an interior of the casing through casing intake hole; a casing exhaust hole provided in the casing; and an impeller provided in the casing to generate air flow from the casing intake hole to the casing exhaust hole; and a display including: a display panel; and a display housing coupled to the display panel and configured to position the display panel to be visible through the cover through-hole.

Containments filtered by the one or more cyclones may be received in a storage space that is opened and closed by a cover provided at the first end of the housing.

The cover through-hole may be defined at a center of the housing cover or is defined in a space between a center of the housing cover and an edge of the housing cover to have a ring or an arc shape.

The display housing may include: a support body coupled to the display panel and configured to be inserted into the filter body through-hole and the cover through-hole such that the support body is positioned above the casing exhaust hole; a support body communicating hole provided in a bottom face of the support body such that at least a portion of the air discharged from the casing exhaust hole flows into the support body through the support body communicating hole; and a filter communicating hole provided in the support body to guide air flowing into the support body communicating hole toward the filter body.

The panel mounting region may include at least one of a groove defined by concavely bending the face of the support body, or a through-hole in the support body that is connected to the support body communicating hole.

The present application has an effect of providing the cleaning appliance that may minimize the flow path resistance of the air flowed by the fan.

Further, the present application has an effect of providing the cleaning appliance including the display for delivering the information to the user.

Further, the present application has an effect of providing the cleaning appliance in which the cleaning of the filter is easy.

Hereinafter, a preferred embodiment of a cleaner will be described in detail with reference to the drawings. A configuration or a method for controlling an apparatus to be described below is only for describing an embodiment of the present application, and is not intended to limit the scope of the present application. Further, like reference numerals throughout the specification indicate like components.

<FIG> illustrates an example of a cleaning appliance <NUM>. The cleaning appliance <NUM> may include a housing <NUM> formed in a form of a cylinder with a hollow defined therein, an intake port <NUM> formed on the housing <NUM> and an exhaust <NUM> defined in the housing <NUM>, a fan <NUM> disposed inside the housing <NUM> to flow air from the intake port <NUM> to the exhaust <NUM>, a separator <NUM> for guiding the air flowed into the intake port <NUM> to the fan <NUM> and separating foreign matters from the air using a centrifugal force, and a display <NUM> for displaying information associated with the cleaning appliance.

A handle <NUM> is disposed on the housing <NUM>. The handle <NUM> may be positioned at a point that is symmetrical with (<NUM> degrees apart from) a point where the intake port <NUM> is located in a space provided by a circumferential face of the housing <NUM>.

As shown in <FIG>, a housing wall <NUM> for dividing an internal space of the housing into a lower space (a first space, S1) and an upper space (a second space, S2) of the housing is disposed inside the housing <NUM>. Further, the housing wall <NUM> includes a wall through-hole S3 for communicating the first space S1 and the second space S2 with each other defined therein.

The intake port <NUM> is disposed on the circumferential face of the housing <NUM> to flow outside air into the first space S1. The intake port <NUM> may include an intake hole <NUM> defined to penetrate the circumferential face of the housing <NUM>, and an intake pipe <NUM> extending from the intake hole <NUM> in a direction to be farther away from a center of the housing <NUM> (a direction farther away from the handle, a Y-axis direction). Although not shown in the drawings, the cleaning appliance of the present disclosure may further include an extended pipe detachably disposed on the intake pipe <NUM>, and a nozzle disposed at a free end of the extended pipe to flow the foreign matters to the extended pipe.

As shown in <FIG>, a housing outlet <NUM> for discharging the foreign matters stored in the housing <NUM> to the outside is further defined in a bottom face (one face of the housing opposite to the face in which the exhaust is defined) of the housing <NUM>. The housing outlet <NUM> is opened and closed by a lower cover <NUM>. The lower cover <NUM> may be pivotably fixed to the housing <NUM>.

The exhaust <NUM> may include a housing through-hole <NUM> defined to penetrate a top face of the housing <NUM> to communicate an interior of the second space S2 with the outside of the housing <NUM>, a housing cover <NUM> for closing the housing through-hole, a cover through-hole <NUM> defined to penetrate the housing cover <NUM>, and the exhaust hole <NUM> penetrating the housing cover <NUM> to discharge the air in the second space S2 therethrough.

The housing cover <NUM> may be formed in any shape as long as the housing through-hole <NUM> is able to be closed. The drawing shows an example of a disk-shaped housing cover for closing the cylindrical housing.

As shown in <FIG>, the cover through-hole <NUM> may be defined at a center of the housing cover <NUM> (a center of the top face of the housing), and the exhaust hole <NUM> may be defined as a plurality of holes surrounding the cover through-hole <NUM>. Unlike the drawing, the cover through-hole <NUM> may be defined in a space defined between the center of the housing cover <NUM> and an edge of the housing cover <NUM> in a ring or an arc shape.

A first filter <NUM> for filtering the air flowing from the fan <NUM> to the exhaust hole <NUM> may be disposed in the second space S2. The first filter <NUM> may include a first filter frame <NUM> detachably fixed to the second space S2, and a first filter body <NUM> positioned below the housing cover <NUM> by being supported by the first filter frame.

The first filter body <NUM> and the first filter frame <NUM> may be formed in a ring shape. That is, a filter body through-hole <NUM> in communication with the cover through-hole <NUM> may be defined at a center of the first filter body <NUM>, and a body first through-hole <NUM> in communication with the filter body through-hole <NUM> may be disposed at a center of the first filter frame <NUM>. In addition, a body second through-hole <NUM> for supplying the air in the second space S2 to the first filter body <NUM> may be defined in the first filter frame <NUM>. The body second through-hole <NUM> may include a plurality of through-holes arranged to form a ring to surround the body first through-hole <NUM>.

Therefore, the air inside the second chamber S2 may be discharged to the outside of the housing <NUM> through the body second through-hole <NUM> and the exhaust hole <NUM>. In this process, the air may be filtered by the first filter body <NUM>.

As shown in <FIG>, a mounting portion <NUM> may be disposed inside the wall through-hole S3. The mounting portion <NUM> is for providing a mounting space <NUM> in which a second filter <NUM> is mounted. The mounting portion <NUM> may be disposed as a mounting body <NUM> detachably fixed to the housing wall <NUM> and positioned inside the wall through-hole S3. The mounting body <NUM> may be disposed in a cylindrical or faceted cylindrical shape having a hollow defined therein.

As shown in <FIG>, a mounting body through-hole <NUM> for communicating the mounting space <NUM> and the second space S2 with each other may be defined in a top face of the mounting body <NUM>, and a plurality of communicating holes <NUM> for communicating the mounting space <NUM> with the first space S1 may be defined in a bottom face <NUM> of the mounting body <NUM>.

The mounting body <NUM> may be detachably coupled to the housing wall <NUM> through a body fastening portion <NUM>. As shown in <FIG>, the body fastening portion <NUM> may include a protrusion <NUM> disposed on an outer circumferential face of the mounting body <NUM>, and a protrusion fastening groove <NUM> defined in the housing wall <NUM> to provide a space in which the protrusion <NUM> is accommodated. The protrusion fastening groove <NUM> may be defined as a groove in which a face of the housing wall defining the wall through-hole S3 is concavely curved.

The separator <NUM> is fixed to the mounting body <NUM>. As shown in <FIG>, when the user opens the housing outlet <NUM> with the lower cover <NUM> and pulls the separator <NUM> to the housing outlet <NUM>, the mounting body <NUM> and the second filter <NUM> may be drawn out of the housing <NUM> together with the separator <NUM>. When the mounting body <NUM> and the second filter <NUM> are withdrawn from the housing <NUM>, the user may detach the second filter <NUM> from the mounting body <NUM>. Therefore, the cleaning appliance having the above-described structure has an effect of facilitating separation and cleaning of the second filter <NUM>.

As shown in <FIG>, the fan <NUM> is disposed in the second space S2 to flow the air in the first space S1 to the exhaust hole <NUM> through the communicating hole <NUM>. Further, the separator <NUM> is a flow path formed in the first space S1 to guide the air flowed into the intake port <NUM> to the communicating hole <NUM>. The foreign matters such as dust and the like contained in the air are separated from the air by a centrifugal force while flowing to the fan <NUM> along the flow path provided by the separator <NUM>, and a specific structure of the separator <NUM> is as follows.

The separator <NUM> includes a chamber forming portion <NUM> for dividing the first space S1 into a first separated chamber 41a and a second separated chamber 41b, and a cyclone forming portion <NUM> for supplying the air in the second separated chamber 41b to the fan <NUM>. The cyclone forming portion <NUM> is for providing the centrifugal force to the foreign matters contained in the air by rotating the air flowing to the fan <NUM>.

The chamber forming portion <NUM> is formed in a hollow cylindrical shape. One end of the chamber forming portion <NUM> may be fixed to the bottom face <NUM> of the mounting body, and the other end of the chamber forming portion <NUM> may include a separated chamber body <NUM> in contact with the lower cover <NUM>, and a separated chamber wall <NUM> for separating the second separated chamber 41b formed in the separated chamber body into a separated space <NUM> and a storage space <NUM>.

The separated chamber body <NUM> includes a plurality of through-holes <NUM> communicating the first separated chamber 41a and the separated space <NUM> with each other. Therefore, the air flowed into the first separated chamber 41a through the intake port <NUM> may be supplied to the separated space <NUM> through the through-hole <NUM>.

An outlet <NUM> is defined in a bottom face of the separated chamber body <NUM> in contact with the lower cover <NUM>. Accordingly, the foreign matters stored in the storage space <NUM> may be discharged to the outside of the housing <NUM> through the outlet <NUM> when the lower cover <NUM> opens the housing outlet <NUM>.

As shown in <FIG>, each cyclone forming portion <NUM> may have one end fixed to the bottom face <NUM> of the mounting body, and the other end including a flow path body <NUM> penetrating through the separated chamber wall <NUM> and in communication with the storage space <NUM>, each discharge pipe <NUM> having one end connected to the mounting space <NUM> and the other end located inside the flow path body <NUM>, each inlet <NUM> defined to penetrate a circumferential face of the flow path body <NUM>, and each air flow forming portion <NUM> forming a spiral flow path between an outer circumferential face of the discharge pipe <NUM> and an inner circumferential face of the flow path body. Each discharge pipe <NUM> may be disposed as a pipe fixed to each communicating hole <NUM>. Each flow path body <NUM> may be disposed as a pipe fixed to the bottom face <NUM> of the mounting body to surround each communicating hole.

In one example, each foreign matter outlet <NUM> is defined at a free end of each flow path body <NUM> (a bottom face of the flow path body) positioned in the storage space <NUM>. Thus, each flow path body <NUM> is in communication with the storage space <NUM> through each foreign matter outlet <NUM>. Each flow path body <NUM> may be disposed to decrease in diameter toward the free end thereof. This is to strongly maintain a strength of the air flow formed therein. Each inlet <NUM> is located at a point higher than each air flow forming portion <NUM>. Therefore, when the fan <NUM> is operated, the air flowing into the flow path body <NUM> through the inlet <NUM> flows to the discharge pipe <NUM> via the air flow forming portion <NUM>. In this process, the air will flow while rotating inside the flow path body <NUM> (cyclone flow).

When the cyclone flow occurs in the flow path body <NUM>, the foreign matters contained in the air will flow to an edge of the flow path (the circumferential face of the flow path body) by the centrifugal force, and then be discharged to the storage space <NUM> by gravity.

As shown in <FIG>, the fan <NUM> is disposed in the second space S2 of the housing to flow the air flowed into the communicating hole <NUM> to the exhaust hole <NUM>. The fan <NUM> may include a casing <NUM> disposed in the wall through-hole S3, an impeller <NUM> rotatably disposed inside the casing, and a motor <NUM> fixed to the casing to rotate the impeller <NUM>. The casing <NUM> may be disposed in a hollow cylinder shape. Further, a casing intake hole <NUM> and a casing exhaust hole <NUM> are defined in the casing <NUM>. The casing intake hole <NUM> may be defined to guide the air flowed through the communicating hole <NUM> of the mounting portion into the casing <NUM>, and the casing exhaust hole <NUM> may be defined to discharge the air in the casing <NUM> to the second space S2.

When the mounting body <NUM> is disposed in the wall through-hole S3, the casing <NUM> may be fixed to the second space S2 (the mounting body, the wall, or the interior of the second space) such that the casing intake hole <NUM> is defined inside the mounting space <NUM>. The motor <NUM> may be fixed to a support <NUM> fixed inside the casing <NUM>. In this case, the casing exhaust hole <NUM> may be defined as a support through-hole passing through the support <NUM>.

The impeller <NUM> is disposed to be positioned between the casing intake hole <NUM> and the casing exhaust hole <NUM>, and a rotation shaft <NUM> of the motor penetrates the support <NUM> and is connected to the impeller <NUM>.

The motor <NUM> may be disposed to receive power through a power source disposed in the room, or may be disposed to receive the power through a battery <NUM> detachable from the housing <NUM>. When the handle <NUM> is disposed to include a handle body <NUM> protruding in a direction farther away from the intake port on a rear face (a face opposite to the face on which the intake port is positioned) of the housing <NUM>, the handle body <NUM> may include a battery housing <NUM> in which the battery <NUM> is detachably accommodated.

In one example, the second filter <NUM> is disposed in the mounting body <NUM> for filtration of foreign matters not removed by the separator <NUM>. As shown in <FIG>, the second filter <NUM> may include a second filter frame <NUM> detachably fixed to the mounting body <NUM>, and a second filter body <NUM> fixed to the second filter frame <NUM> and inserted into the mounting space <NUM>.

The first filter <NUM> and the second filter <NUM> may be arranged to filter foreign matters of the same size, or may be arranged to filter foreign matters of different sizes. When the first filter <NUM> and the second filter <NUM> are arranged to filter the foreign matters of the different sizes, it is preferable that the second filter <NUM> is disposed to filter foreign matters of a size smaller than a size of the foreign matters filtered by the first filter <NUM>. This is to minimize an amount of fine dusts discharged to an indoor space.

As shown in <FIG>, the display <NUM> may include a display panel <NUM> exposed to the outside of the housing <NUM> through the cover through-hole <NUM>, a display housing <NUM> to which the display panel <NUM> is fixed, and a housing fastening portion (or housing fastening extension) <NUM> for fixing the display housing <NUM> to the wall <NUM> or the interior of the second chamber S2 (an inner circumferential face of the housing and the like).

The display panel <NUM> is for displaying information associated with an operation of the cleaning appliance <NUM>, and an LCD panel may be an example of the display panel <NUM>. The information associated with the operation of the cleaning appliance may include a user selectable control command, information on whether cleaning of the filters <NUM> and <NUM> is necessary, information on whether the motor <NUM> disposed in the fan is abnormal, information on whether the battery needs to be charged, and the like as examples thereof.

Whether the cleaning of the filters <NUM> and <NUM> is necessary and whether the motor <NUM> is abnormal may be determined using a pressure sensor for sensing an internal pressure of the second chamber. That is, whether the cleaning of the filters <NUM> and <NUM> is necessary and whether the motor <NUM> is abnormal may be determined by comparing, by a controller, the internal pressure of the second chamber transmitted by the pressure sensor after the power is supplied to the motor <NUM> with a preset reference value. The controller may be disposed to determine that the motor is broken when the internal pressure of the second chamber is equal to or less than a preset first reference value, determine that the cleaning of the filter is necessary when the internal pressure of the second chamber is greater than the first reference value and less than a second reference value, and determine that the filter and the motor are in a normal state when the internal pressure of the second chamber is equal to or greater than the second reference value. In one example, the display panel <NUM> may be disposed as a touch panel capable of displaying not only the information but also the control command.

Because the display panel <NUM> is exposed to the outside of the housing through the cover through-hole <NUM>, the display panel <NUM> may have the same shape as that of the cover through-hole <NUM>.

The display housing <NUM> is fixed to the second chamber S2 through the housing fastening portion <NUM> to provide a space in which the display panel <NUM> is installed. The display housing <NUM> may be formed in a shape of a cylinder inserted into the filter body through-hole <NUM> and the cover through-hole <NUM>.

A bottom face of the display housing <NUM> may be located above the casing exhaust hole <NUM>. In this case, a support body communicating hole for flowing at least a portion of the air discharged from the casing exhaust hole <NUM> into the support body <NUM> may be defined in the bottom face of the display housing <NUM>. Further, a filter communicating hole <NUM> for guiding the air flowed into the support body communicating hole to the first filter body <NUM> may be defined in a circumferential face of a support body <NUM>.

The display housing <NUM> may include a panel mounting portion (or panel mounting region) <NUM> defined in a face facing the cover through-hole <NUM> of a space provided by the support body <NUM> to provide a space in which the display panel <NUM> is mounted. The panel mounting portion <NUM> may be defined as a groove in which one face (a face exposed to the outside of the housing through the cover through-hole) of the support body <NUM> is concavely bent, or a through-hole penetrating the support body <NUM> to be connected to the support body communicating hole.

The cleaning appliance <NUM> may further include a display cover <NUM> fixed to the support body <NUM> and positioned above the display panel <NUM> for protection of the display panel <NUM>. The display cover <NUM> is preferably made of a transparent material.

The housing fastening portion <NUM> is means for detachably fixing the support body <NUM> to the wall <NUM> or the inner circumferential face of the second space S2, and <FIG> illustrates a case in which the housing fastening portion <NUM> fixes the support body <NUM> to the wall <NUM>. The housing fastening portion <NUM> may include a boss <NUM> disposed on the wall <NUM>, a flange <NUM> disposed on the support body <NUM>, and a bolt for fixing the flange to the boss. An operation procedure of the cleaning appliance <NUM> having the above-described structure is as follows. As shown in <FIG>, when the power is supplied to the motor <NUM> and the impeller <NUM> rotates, the air is flowed into the first separated chamber 41a through the intake pipe <NUM> and the intake hole <NUM>. The intake pipe <NUM> includes a housing guide <NUM> for allowing the air discharged from the intake hole <NUM> to flow into a circumferential face of the first separated chamber 41a in a tangential direction. Therefore, the air flowed into the first separated chamber 41a will rotate along the circumferential face of the first separated chamber 41a.

When the air rotates inside the first separated chamber 41a, the foreign matters in the air will be flowed to the circumferential face of the first separated chamber 41a by the centrifugal force and then to the lower cover <NUM> disposed on the bottom face of the housing by gravity, and the air will flow through the through-hole <NUM> to the second separated chamber 41b.

The air flowed to the second separated chamber 41b will flow to the flow path body <NUM> through the inlet <NUM>, and the air flowed into the flow path body <NUM> will flow cyclonically while passing through the air flow forming portion <NUM>. When the cyclone flow occurs in the flow path body <NUM>, the foreign matters contained in the air will flow to the circumferential face of the flow path body <NUM> by the centrifugal force and then be discharged to the storage space <NUM> by gravity. Further, the air will be discharged out of the housing <NUM> through the discharge tube <NUM>, the communicating hole <NUM>, the casing intake hole <NUM>, the casing exhaust hole <NUM>, the filter communicating hole <NUM>, the body second through-hole <NUM>, and the exhaust hole <NUM>.

As described above, a discharge flow path is formed in the cleaning appliance <NUM> by the discharge pipe <NUM>, the communicating hole <NUM>, the casing intake hole <NUM>, the casing exhaust hole <NUM>, the filter communicating hole <NUM>, the body second through-hole <NUM>, and the exhaust hole <NUM>. Because the discharge flow path is in a state in which bending is minimized, the cleaning appliance <NUM> may minimize a flow path resistance of the air flowed by the fan <NUM>.

The foreign matters stored in the storage space <NUM> and the first separated chamber 41a are discharged to the outside of the housing <NUM> when the lower cover <NUM> opens the housing outlet <NUM>. The first filter <NUM> is detachable from the housing <NUM> by opening the housing cover <NUM>, and the second filter <NUM> is detachable from the housing <NUM> by withdrawing the separator <NUM> from the housing <NUM>. <FIG> illustrates a different embodiment of a cleaning appliance. a structure of the cleaning appliance <NUM> according to the present embodiment may be the same as that of the cleaning appliance of <FIG> except for the fan <NUM> and the display <NUM>.

The fan <NUM> in the present embodiment may include the casing <NUM> in which the casing intake hole <NUM> and the casing exhaust hole <NUM> are defined, the impeller <NUM> rotatably disposed inside the casing and positioned between the casing intake hole <NUM> and the casing exhaust hole <NUM>, the motor <NUM> for rotating the impeller, and the casing cover <NUM> disposed to form a rear face of the casing. Because the casing <NUM>, the impeller <NUM>, and the motor <NUM> have been described in the embodiments of <FIG>, detailed descriptions thereof will be omitted. The casing cover <NUM> may be fixed to the casing <NUM> or may be fixed to the wall <NUM>, and may be fixed to an inner circumferential face of the housing <NUM> to be located in the second space S2. The casing cover <NUM> is disposed to form a rear face of the fan <NUM>.

The casing <NUM> and the casing cover <NUM> may be coupled to each other to form one chamber. That is, the casing <NUM> may be disposed as a cylinder with an open top face, and the casing cover <NUM> may be disposed as a cylinder with an open bottom face.

The casing cover <NUM> may be fixed to the casing <NUM>, the wall <NUM>, or the inner circumferential face of the housing through a cover support <NUM>. <FIG> illustrates an example in which the cover support <NUM> is disposed to fix the casing cover <NUM> to the wall <NUM>. In this case, the cover support <NUM> may be disposed as a boss <NUM> disposed on the wall <NUM>, a flange <NUM> disposed on the casing cover <NUM>, and a bolt for connecting the boss and the flanges <NUM> and <NUM> with each other. The casing cover <NUM> may include a filter first communicating hole <NUM> defined therein such that the air discharged through the casing exhaust hole <NUM> may be discharged to the outside of the casing cover <NUM>.

In one example, the display <NUM> in the present embodiment includes the display housing <NUM> inserted into the filter body through-hole <NUM> and the cover through-hole <NUM> and positioned above the casing cover <NUM>, and the housing fastening portion <NUM> for fixing the display housing <NUM> to the second space S2. The display housing <NUM> may include the support body <NUM> in a form of a hollow cylinder. The display panel <NUM> disposed on the display is fixed to the support body <NUM>. The housing fastening portion <NUM> may include the flange <NUM> protruding from a circumferential face of the support body <NUM>, and the bolt for fixing the flange <NUM> to the inner circumferential face of the housing <NUM>.

A filter second communicating hole <NUM> for guiding the air discharged from the filter first communicating hole <NUM> of the casing cover to the filter body <NUM> should be defined in the display housing <NUM>. The filter second communicating hole <NUM> may be defined as a hole passing through the flange <NUM>, or may be defined as a space (see <FIG>) defined between the plurality of flanges <NUM>. The support body <NUM> is preferably disposed so as not to be supported on a top face of the casing cover <NUM>. This is to minimize transmission of a vibration generated during the operation of the fan <NUM> to the display panel <NUM>.

Claim 1:
A cleaning appliance (<NUM>) comprising:
a hollow housing (<NUM>);
a housing wall (<NUM>) provided in the housing to divide an internal space of the housing into a first space (1b) and a second space (1a);
a wall through-hole (<NUM>,<NUM>) provided in the housing wall;
an intake port (<NUM>),
the first space communicating with an exterior of the housing via the intake port;
an exhaust (<NUM>) provided in a housing through-hole provided in the housing such that the second space communicates with the exterior of the housing through the housing through-hole, the exhaust including:
a housing cover configured to be received in the housing through-hole;
a cover through-hole provided in the housing cover; and
an exhaust hole provided the housing cover, the second space communicating with the exterior of the housing through the exhaust hole;
a fan (<NUM>) including:
a casing (<NUM>) configured to be coupled to at least one the housing wall or a surface facing the second space such that the casing is positioned in the wall through-hole;
a casing intake hole provided in the casing, the first space communicating with an interior of the casing through casing intake hole;
a casing exhaust hole (<NUM>) provided in the casing; and
an impeller (<NUM>) to generate an air flow into the interior of the casing via the casing intake hole and out of the interior of the casing via the casing exhaust hole;
a separator (<NUM>) provided in the first space to form a flow path for air from the intake port to the casing intake hole, wherein the separator separates a matter from the air flow using centrifugal force; characterized in that the cleaning appliance comprises
a display (<NUM>) including:
a display panel (<NUM>);
a display housing (<NUM>) coupled to the display panel; and
at least one housing fastening extension (<NUM>) that is configured to couple the display housing to at least one of the housing wall or an inner circumferential surface of the housing such the display panel is positioned to be exposed to the exterior of the housing through the cover through-hole.