Exhaust device

The present disclosure relates to an exhaust device. The exhaust device according to the concept of the present disclosure includes a base plate, a swirler, a driving motor, and a rotation shaft. The swirler includes a rotating plate in which the rotation shaft is connected to a central portion thereof, and a plurality of blade parts extending from an edge portion of the rotating plate. In this case, the rotating plate may be convexly bent such that the central portion thereof is positioned on the front side than the edge portion.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a National Stage application under 35 U.S.C. § 371 of International Application No. PCT/KR2020/001919, filed on Feb. 11, 2020, which claims the benefit of Korean Patent Application No. 10-2019-0020091, filed on Feb. 20, 2019. The disclosures of the prior applications are incorporated by reference in their entirety.

TECHNICAL FIELD

The present disclosure relates to an exhaust device.

BACKGROUND

In general, an exhaust device is a device that suctions polluted air. Accordingly, the exhaust device is used in factories, homes, restaurants, and the like, where a lot of pollutants are generated. In particular, the exhaust device may be installed in the kitchen of the home to suction polluted air generated during cooking.

In relation to such an exhaust device, the present applicant has applied for Prior Art Document 1.

2. Title of the Invention: Local Exhaust Device and Swirler Provided Therein

Prior Art Document 1 includes a vortex forming device (swirler) that rotates to induce intake of external air and forms a vortex. The vortex forming device includes a rotating plate and a wing part disposed to surround the radially outer side of the rotating plate, and the wing part includes a flat portion forming the same plane as the rotating plate and a bent blade formed by bending a portion of the flat portion.

The vortex forming device (hereinafter referred to as the swirler) of Prior Art Document 1 is provided with a flat surface and may be relatively easily deformed by external impact or external force. In particular, there is a problem in that a portion of the swirler coupled to a rotation shaft is relatively thin and flat, so that it is vulnerable to external force.

In addition, one end of the rotation shaft may be coupled to the swirler and the other end of the rotation shaft may be coupled to a driving motor. At this time, as the swirler is provided with the flat surface, there is a problem in that the height of the exhaust device including the driving motor is relatively increased. Accordingly, there is a problem in that a space in which the exhaust device is installed is limited and user inconvenience is caused.

DISCLOSURE

Technical Problem

The present disclosure has been proposed to solve these problems, and aims to provide an exhaust device having a swirler having a shape that prevents deformation caused by external force.

In particular, the present disclosure aims to provide an exhaust device in which the shape of the swirler installation part where the swirler is installed is deformed in correspondence to the swirler, and the drive motor is accommodated in the swirler installation part such that the exhaust device has a relatively small height.

Technical Solution

An exhaust device according to a concept of the present disclosure includes a base plate, a swirler rotatably coupled to a first surface of the base plate positioned on a front side, a driving motor installed on a second surface of the base plate positioned on a rear side and configured to provide power for rotating the swirler, and a rotation shaft installed to pass through the base plate so as to connect the swirler to the driving motor.

The swirler includes a rotating plate in which the rotation shaft is connected to a central portion thereof, and a plurality of blade parts extending from an edge portion of the rotating plate.

In this case, the rotating plate may be convexly bent such that the central portion thereof is positioned on the front side than the edge portion.

In addition, the base plate may include a base body having the first surface and the second surface, and a swirler installation part formed in the base body to accommodate the swirler.

In addition, the swirler installation part may include a stepped portion extending from the base body toward the rear side, and an installation plate convexly extending from the stepped portion toward the front side.

Advantageous Effects

The exhaust device having the above-described configuration according to the embodiment of the present disclosure has the following effects.

As the swirler that generates the flow of air is formed to prevent a change in shape by external force, the exhaust device operates more stably and the user's reliability may be increased.

In particular, there is an advantage in that the weight of the swirler is maintained as it is, and thus the performance is maintained, and it is possible to prevent the deformation caused by external shock or external force through the change in shape.

In addition, the swirler installation part in which the swirler is installed is formed to correspond to the shape of the swirler, and the driving motor is accommodated in the swirler installation part, thereby reducing the overall height of the exhaust device.

Accordingly, the degree of freedom of installation of the exhaust device is increased and a relatively wide cooking space is secured, thereby increasing user convenience.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, some embodiments of the present disclosure will be described in detail with reference to exemplary drawings. It should be noted that when components in the drawings are designated by reference numerals, the same components have the same reference numerals as far as possible even though the components are illustrated in different drawings. Further, in description of embodiments of the present disclosure, when it is determined that detailed descriptions of well-known configurations or functions disturb understanding of the embodiments of the present disclosure, the detailed descriptions will be omitted.

Also, in the description of the embodiments of the present disclosure, the terms such as first, second, A, B, (a) and (b) may be used. These terms are only for distinguishing one component from another, and the nature, order, or sequence of the components is not limited by the terms. When it is described that an element is “coupled to”, “engaged with”, or “connected to” another element, it should be understood that the element may be directly coupled or connected to the other element but still another element may be “coupled to”, “engaged with”, or “connected to” the other element between them.

FIG.1is a view showing a space in which an exhaust device according to an embodiment of the present disclosure is installed.

As shown inFIG.1, the exhaust device10according to the spirit of the present disclosure may be installed in a kitchen. In particular, the exhaust device10may be disposed above a first cooking appliance1in which a user cooks a predetermined food. For example, the first cooking appliance1may include a gas range.

Accordingly, the exhaust device10may suction and discharge polluted air generated when the first cooking appliance1is used. In addition, the exhaust device10may be coupled to a second cooking appliance2installed on a wall W of the kitchen. For example, the second cooking appliance2may include a wall-mounted microwave oven.

The second cooking appliance2may include a cooking space3accommodating food and an air passage5communicating with the exhaust device10. In addition, the second cooking appliance2may further include a door4configured to open or close the cooking space3and a fan7installed in the air passage5.

In this case, the cooking space3and the air passage5are provided as separate spaces. That is, the cooking operation accommodated in the second cooking appliance2and the exhaust operation of the exhaust device10may be separately performed.

Referring to an arrow shown inFIG.1, the air suctioned upward by the exhaust device10flows along the air passage5. The air flows along the air passage5and may be discharged to one side. In addition, the air passage5may be disposed to communicate with an exhaust hole formed in the wall, such that the polluted air may be discharged to the outside.

In this case, the first cooking appliance and the second cooking appliance are merely exemplary. Accordingly, the exhaust device10may be installed in various forms at a required place. In addition, of course, only the exhaust device10may be installed alone.

Hereinafter, the exhaust device10will be described in detail.

FIG.2is a view showing the exhaust device according to an embodiment of the present disclosure, andFIG.3is a view taken along line ofFIG.2.

As shown inFIGS.2and3, the exhaust device10includes a base plate100and a swirler300. The base plate100forms the outer appearance of the exhaust device10and may be understood as a configuration in which the swirler300is installed.

The swirler300is rotatably installed to form the flow of air. That is, the swirler300may be rotatably coupled to the base plate100. In addition, the exhaust device10includes a driving motor310that provides power for rotating the swirler300and a rotation shaft320that connects the driving motor310to the swirler300.

At this time, the driving motor310and the swirler300are respectively installed on opposite surfaces of the base plate100. In detail, the base plate100has a first surface and a second surface opposite to each other. In this case, a side on which the first surface is formed is referred to as a front side, and a side on which the second surface is formed is referred to as a rear side.

In addition, the swirler300is installed on the first surface of the base plate100, and the driving motor310is installed on the second surface of the base plate100. In other words, the swirler300is installed on the front side of the base plate100, and the driving motor310is installed on the rear side of the base plate100.

The rotation shaft320is installed to pass through the base plate100so as to connect the swirler300to the driving motor310. The shape of the swirler300and the shape of the base plate100on which the swirler300is installed will be described in detail later.

In addition, the exhaust device10includes a filter bracket200that is detachably coupled to the base plate100. In detail, the filter bracket200may be understood as a configuration for protecting the swirler300.

Accordingly, the filter bracket200is coupled to the base plate100to cover the swirler300. As shown inFIG.2, the swirler300is not exposed to the outside by the filter bracket200. Referring toFIG.3, the swirler300is disposed between the filter bracket200and the base plate100.

That is, the filter bracket200is coupled to the first surface of the base plate100to cover the swirler300. In other words, the filter bracket300is coupled to the front side of the base plate100. In this case, the filter bracket200may be provided in a circular flat plate as a whole. The filter bracket200has various openings and irregularities.

In this case, the bait plate100and the filter bracket200may be made of different materials and manufactured through different processes. For example, the base plate100may be made of steel, and the filter bracket200may be made of plastic. In addition, the base plate100may be formed on a predetermined flat plate through a machining process, and the filter bracket200may be formed through an injection process.

At this time, the filter bracket200corresponds to a configuration in which the air flowing by the swirler300primarily contacts. That is, there is a relatively high possibility that pollutants are accumulated in the filter bracket200. Accordingly, the user needs to periodically clean the filter bracket200.

The exhaust device1according to the present disclosure has a structure in which the filter bracket200is easily separated from the base plate100for user convenience. In detail, the filter bracket200may be fitted to the base plate100.

For example, the filter bracket200may be provided with a protruding rib (not shown) protruding toward the base plate100. The protruding rib may be fitted to the base plate100, and the filter bracket200may be installed in the base plate100.

In addition, the filter bracket200is provided with a fastening rib230coupled to the base plate100through a fastening member. The fastening rib230may be understood as an auxiliary coupling part for fitting. Accordingly, the fastening ribs230may be provided in a minimum number. For example, the fastening rib230may be provided as one fastening rib.

In addition, the exhaust device10is provided with filters115and117through which the air flowing by the swirler300passes. In particular, the filters115and117may correspond to oil filters configured to filter oil in flowing air. The filter includes a first oil filter117installed at one side of the swirler300and a second oil filter115installed in an auxiliary intake part to be described later.

The first filter117is installed in the filter bracket200to filter the air flowing into the swirler300. In particular, the first filter117may be formed in a circular shape and installed in the central portion of the filter bracket200.

In addition, a lighting120may be installed in the base plate100. For example, the lighting120may be installed to irradiate the first cooking appliance1with light. Accordingly, a user may conveniently cook food in the first cooking appliance1.

Hereinafter, the base plate100will be described in detail.

FIG.4is a view showing the base plate of the exhaust device according to an embodiment of the present disclosure. The filter bracket200, the swirler300, and the filters115and117ofFIG.2are omitted inFIG.4in order to describe the base plate100.

As shown inFIG.4, the base plate100may include a base body102having a first surface and a second surface.FIG.4is a view showing the first surface of the base body102. The base body102is provided as a rectangular flat plate and has various openings and irregularities through various processing processes.

In addition, the base plate100is provided with a swirler installation part110recessed such that the swirler300is accommodated therein. The swirler installation part110is formed in a circular shape to correspond to the shape of the swirler102.

The swirler installation part110is formed in a circular shape to correspond to the shape of the swirler300. A rotation hole114through which the rotation shaft320of the swirler300passes may be formed in the central portion of the swirler installation part110.

That is, the swirler installation part110may be understood as a circular recessed part formed around the rotation hole114. In addition, the swirler installation part110is formed in a circular shape greater than the swirler300so as not to interfere with the rotation of the swirler300.

In addition, a suction port116through which air flows is formed in the swirler installation part110. The suction port116may be understood as an opening through which the air passing through the swirler300flows through the base plate100. The shape and number of suction ports116may be provided differently depending on the design.

In addition, the base plate100is provided with an auxiliary suction port130that is opened in the base body102so as to be positioned at one side of the swirler installation part110. As shown inFIG.4, the auxiliary suction ports130may be formed on both sides of the swirler installation part110, respectively.

The auxiliary suction port130may be understood as a configuration that facilitates the flow of air flowing by the swirler300. In detail, as air flows through the auxiliary suction port130as well as the suction port116, exhaust efficiency may be increased. In addition, the auxiliary suction port130may be formed in a shape of an open grill extending to one side.

In addition, the second oil filter115may be mounted on the auxiliary suction port130. In detail, the second oil filter115may be installed in front of the auxiliary suction port130to filter the air flowing into the auxiliary suction port130.

In addition, the base body102includes a slit112that is opened. The slit112corresponds to an opening into which at least a portion of the filter bracket200is inserted. That is, the slit112may be understood as an opening to which the filter bracket200is coupled.

As shown inFIG.4, the slit112is opened in an arc shape having a predetermined curvature. In particular, the slit112may correspond to an arc of a virtual circle formed around the rotation hole114. At this time, the virtual circle has a larger diameter than the swirler installation part110.

In addition, the slit112is formed in plurality. For example, as shown inFIG.4, four slits112may be provided. The slits112are provided with the same size and shape, and are spaced apart from each other at equal intervals in a circumferential direction. In this case, the number of slits112is exemplary.

In addition, the base main body102includes a fastening hole113that is opened. The fastening hole113corresponds to an opening into which a predetermined fastening member passing through the filter bracket200is inserted. That is, the fastening hole113may be understood as an opening coupled to the fastening rib230of the filter bracket200by the fastening member.

In this case, the fastening hole113is radially spaced apart from the slit112. In detail, the fastening hole113is formed outside the slit112. That is, the fastening hole113is formed outside the swirler installation part110, and the slit112is disposed closer to the rotation hole114than the fastening hole113.

In other words, the rotation hole114, the slit112, and the fastening hole113are sequentially disposed in one direction. In this case, one direction corresponds to the radially outer side of the circle formed around the rotation hole114.

In addition, the fastening hole113is formed in plurality. For example, as shown inFIG.4, four fastening holes113may be provided. The fastening holes113are provided with the same size and shape, and are spaced apart from each other at equal intervals in a circumferential direction. In this case, the number of fastening holes113is exemplary.

In addition, the slit112and the fastening hole113may be provided in the same number. This is for convenience of coupling with the filter bracket200to be described later. A coupling protrusion113protruding rearward may be formed on the rear surface of the frame light guide112.

In this case, both the slit112and the fastening hole113correspond to an opening for coupling with the filter bracket200. However, the filter bracket200is inserted into the slit112, and the fastening member coupled to the filter bracket200is inserted into the fastening hole113. That is, it can be seen that the filter bracket200is fitted through the slit112and fixed through the fastening hole113.

Hereinafter, the swirler installation part110will be described in detail.

FIGS.5and6are views illustrating a swirler installation part of the exhaust device according to an embodiment of the present disclosure.FIGS.5and6are views showing only the swirler installation part110. This is for convenience of description and the base plate100may be integrally formed.

In detail,FIG.5is a view showing the swirler installation part110when viewed from the second surface side, that is, the rear side. In addition,FIG.6is a view showing the swirler installation part110when viewed from the first surface side, that is, the front side.

As shown inFIGS.5and6, the swirler installation part110has an edge portion recessed to the rear side and a central portion protruding toward the front side. As a whole, the swirler installation part110is recessed toward the rear side in a circular shape.

In detail, the swirler installation part110includes a stepped portion111and an installation plate115. In particular, the installation plate115is formed in a circular shape and spaced rearward apart from the base body102, and the step portion111connects the installation plate115to the base body102.

Accordingly, the step portion111is formed to extend rearward from the base body102. The step portion111may be formed to have a predetermined inclination and extend rearward.

In addition, the installation plate115is formed to extend frontward from the step portion111in a convex shape. Accordingly, the central portion of the installation plate115is positioned to protrude frontward than the edge portion connected to the step portion111. Accordingly, the installation plate115is concave from the rear side as shown inFIG.5.

A rotation hole114through which the rotation shaft320passes is formed in the central portion of the installation plate115. The driving motor310is disposed at the rear of the installation plate115, and the swirler300is disposed at the front of the installation plate115. At this time, the driving motor310is accommodated in the installation plate115.

That is, at least a portion of the driving motor310is accommodated in the concave installation plate115. Referring toFIG.3, as the driving motor310is accommodated in the installation plate115, the driving motor310may be disposed on the relatively front side. In other words, the driving motor310may be disposed to protrude relatively little toward the rear side.

As a result, as the driving motor310is accommodated in the installation plate115, the height of the exhaust device100may be lowered. As shown inFIG.1, as the height of the exhaust device100decreases, a cooking space may be formed more comfortably. That is, as the height of the exhaust device100decreases, user convenience may be increased and the exhaust device100may be installed even in a narrower space.

In addition, the above-described suction port116is formed in the installation plate115. The suction port includes a first suction port116aand a second suction port116bspaced apart from each other. In this case, the driving motor310may be disposed between the first suction port116aand the second suction port116b.

In particular, the first and second suction ports116aand116bmay be formed at one side of the installation plate115. In detail, assuming that the installation plate115is divided in half, the first and second suction ports116aand116bare formed only at one side of the installation plate115, that is, a semicircular portion. The driving motor310is disposed in a semicircular portion in which the first and second suction ports116aand116bare formed.

Such a structure is to efficiently form a vortex by the swirler300. Hereinafter, the shape of the swirler300will be described in detail.

FIGS.7and8are views illustrating the swirler of the exhaust device according to an embodiment of the present disclosure.

As shown inFIGS.7and8, the swirler300includes a rotating plate302and a plurality of blade parts304extending from the edge portion of the rotating plate302. In addition, a swirler rotation hole303to which the rotation shaft310is connected is opened in the central portion of the rotation plate302.

Accordingly, the swirler300may be disposed in the swirler installation part110such that the swirler rotation hole303matches the rotation hole114. The swirler300is provided in a circular shape accommodated in the swirler installation part110as a whole. In detail, the rotating plate302may be provided in a circular shape, and the plurality of blade parts304may be cut at the edge portion of the rotating plate302.

At this time, the rotating plate302is convexly bent such that the central portion thereof is positioned on the front side than the edge portion. That is, the rotating plate302is formed in a shape corresponding to that of the installation plate115inFIG.7. In addition, it can be understood thatFIG.7shows the swirler300when viewed from the front side, andFIG.8shows the swirler300when viewed from the rear side.

In summary, the swirler300shown inFIG.8may be disposed and coupled to the lower portion of the swirler installation part110shown inFIG.5. In addition, the swirler300shown inFIG.7may be disposed and coupled to the upper portion of the swirler installation part110shown inFIG.6.

At this time, one end of each of the plurality of blade parts304is bent toward the front side. In detail, each of the blade parts304includes a first blade part306extending from the rotating plate302and a second blade part308extending frontward from the first blade part306.

In other words, the rotating plate302is provided in a shape of a disk in which the swirler rotation hole303is formed in the central portion. The first blade part306extends radially outwardly away from the central portion of the rotating plate302at the edge of the rotating plate302.

At this time, the first blade part306is formed to have a predetermined thickness in a circumferential direction. Accordingly, one first blade part306has both ends extending from the rotating plate302. At this time, the second blade part308extends frontward from one of both ends of the first blade part306.

That is, one end of the first blade part306is provided so as not to be bent frontward. Accordingly, it can be understood that the first blade part306and the second blade part308are provided in the same number.

In this case, the length of the second blade part308extending frontward from the first blade part306is the same as the distance between the edge portion and the central portion of the rotating plate302spaced frontward apart from each other. Referring toFIG.3, it can be seen that the central portion of the swirler300is disposed on the same line as the front of the blade part304in the horizontal direction.

In addition, the rotating plate302includes a plurality of swirler flow holes305opened between the swirler rotation hole303and the plurality of blade parts304. At this time, a portion of the rotating plate302forming the plurality of swirler flow holes305may be bent toward the front side.

Such a shape may prevent the swirler300from being deformed by external force. In detail, the deformation of the swirler300may be prevented by the force of bending or twisting the swirler300frontward or rearward.

In addition, the swirler installation part110is provided in a shape corresponding to the swirler300. Accordingly, the swirler300may be more efficiently accommodated in the swirler installation part110. In addition, the driving motor320may be accommodated in the swirler installation part110to reduce the height of the exhaust device10.