KR20220013879A - Portable air caring apparatus - Google Patents

Abstract

Disclosed is a portable air purifier capable of blocking air pollution by installing a separate sterilizing device for sterilizing a filter unit. According to the present invention, the portable air purifier may comprise: a housing unit having an accommodation space formed therein and having an inlet part for sucking air and an exhaust part for discharging air; a filter unit installed inside the housing unit facing the inlet part; a fan module unit installed inside the housing unit facing the exhaust part; a filter case which is detachably installed in the filter unit and is located between the filter unit and the fan module unit and guides the movement of air from the filter unit to the fan module unit; and a sterilization unit mounted on the filter case and irradiating light for sterilization toward the filter unit.

Description

Portable air purifier {PORTABLE AIR CARING APPARATUS}

The present invention relates to a portable air purifier, and more particularly, to a portable air purifier capable of sterilizing a filter unit.

An air purifier is a device widely used in modern life, and it purifies the air by filtering physical particles such as dust, fine dust, and ultrafine dust, chemicals such as odor particles and harmful gases, and microorganisms such as bacteria and viruses. .

Air purifiers are becoming an indispensable device even in general households due to the influence of urbanization, industrialization, and globalization. In addition, the demand for it is rapidly increasing due to the increase in fine dust, the increase in allergy sufferers, and the improvement of living standards.

When the air purifier is intended for an environment exceeding 100 m2, such as a general home, the size of the device may be increased. In such a device, a filter corresponding to physical particles such as dust, a filter corresponding to a chemical substance such as gas, and a filter corresponding to microorganisms such as bacteria or viruses may be used in combination. That is, in a large space, a large-sized air purifier capable of accommodating various filters in combination can be used.

However, using a large-sized air purifier in a narrow space such as a studio room or inside a vehicle is inefficient in terms of space utilization, mobility, and energy consumption. In addition, for users who move frequently, an air purifier that is small in size and can be used by individuals is more suitable than a large-sized air purifier. Under this background, portable air purifiers that can be used by individuals are being developed.

The portable air purifier is provided in a small and light form for easy portability. Such a portable air purifier has an advantage that the user can easily carry it and use it at a desired place. That is, a portable air purifier is a device suitable for a user who has a life pattern of going out frequently or moving to several places rather than staying for a long time in one place, such as at home.

The prior art (Korean Patent Publication No.: 10-2019-0029478 A, title of invention: portable air purifier) is an invention of an air purifier, in which the rear panel for sucking air and the front panel for discharging air are installed in the horizontal direction . Therefore, the outside air that passes through the rear panel and flows into the inside of the case passes through the filter unit and the fan assembly in turn, and then is discharged to the outside of the portable air purifier through the outlet.

However, in the prior art, since a separate sterilization device for sterilizing the filter unit is not provided, there is a problem in that the possibility of contamination of the filter unit is increased.

In addition, when a separate sterilizing device for sterilizing the filter unit is installed inside the prior art, a separate fixing bracket for fixing the sterilizing device should be additionally installed on the inside of the case. Since a separate fixing bracket is additionally installed inside the case, the size of the filter part and the fan assembly is relatively small, which causes a problem in that the air purification ability is lowered.

In addition, when the sterilizer in which the sterilizer is additionally installed in the prior art is fixed to the fan module unit, the sterilization beam irradiated from the sterilizer interferes with the filter case fixing the filter unit, so the filter unit cannot be sterilized properly. do. In addition, when the sterilizer is installed in the fan module unit, there is a problem in that the frictional resistance between the air sucked through the inlet of the fan module and the sterilizer increases, so that the blowing ability is lowered.

In addition, in the prior art, the shape of the case is made in a rectangular parallelepiped shape extending in the vertical direction, and the edge of the case is provided on the outside. Therefore, inconvenience may occur in the operation of the user holding the outside of the case, and when the portable air purifier is mounted on a structure having a groove shape concave downward, such as a cup holder, between the cup holder and the case having a cylindrical groove shape. As a gap is generated and causes the case to shake, there is a problem that causes vibration and noise.

An object of the present invention is to provide a portable air purifier capable of blocking air pollution by installing a separate sterilizing device for sterilizing the filter unit.

Another object of the present invention is to provide a portable air purifier capable of exhibiting high air purification performance by minimizing an increase in resistance of an air flow passage passing through the portable air purifier when a sterilizer is installed inside the portable air purifier. .

Another object of the present invention is to provide a portable air purifier capable of reducing vibration and noise generation of the portable air purifier when the portable air purifier is installed in a cup holder.

Another object of the present invention is to provide a portable air purifier in which a user can comfortably move while holding the outside of the case.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned may be understood by the following description, and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the appended claims.

The portable air purifier according to the present invention for solving the above problems has a technical feature of sterilizing the filter unit by installing a sterilizing unit between the filter unit and the fan module unit.

Specifically, the sterilization unit is installed between the filter case and the fan module unit supporting the filter unit, or the sterilization unit is installed inside the filter case, and the filter unit can be sterilized by the sterilization light irradiated from the sterilization unit. In addition, since the sterilization unit is installed between the fan module unit and the filter unit, and the light for sterilization is irradiated toward the filter unit which shields the inlet unit, it is possible to block the light for sterilization harmful to the human body from being exposed to the outside of the housing unit.

In addition, the portable air purifier according to the present invention is characterized in that the sterilization unit is installed in a shape extending in the vertical direction from the center of the fan module part to minimize the increase in resistance of the air flow path.

Specifically, in a state in which the plurality of fan members are installed consecutively in the vertical direction, the upper and lower ends of the sterilizing unit extending in the vertical direction do not protrude outside the hub of the fan member, so that the sterilizing unit is obstructed in the air flow path sucked into the fan member. can be minimized

In addition, the portable air purifier according to the present invention is technically characterized in that the sterilizing unit is installed between the filter unit and the fan module unit in a state in which an air flow path passing through the housing unit in a horizontal direction is formed.

Specifically, the air introduced into the inlet of the housing moves in the horizontal direction, passes through the filter unit, the sterilizer, and the fan module in turn, and then is discharged through the discharge unit of the housing unit. can do it

In addition, in the portable air purifier according to the present invention, the distance between the filter part and the fan module part is different from the first horizontal center line passing through the center of the housing part in the horizontal direction and located in the middle of the inlet part and the exhaust part. characterized.

Specifically, in order for the sterilization unit to irradiate the sterilization light toward the filter unit, the sterilization unit and the filter unit must be spaced apart at a set interval. It is installed close to the first horizontal center line. In addition, the volume of the fan module unit is larger than the volume of the filter unit.

In addition, the portable air purifier according to the present invention is technically characterized in that the cross-section of the housing part installed in the concave groove part like a cup holder of a vehicle is made in a circular or oval shape.

Specifically, since the cross-section of the housing portion is circular or oval, the housing portion can be stably seated in the groove portion of the cup holder having a circular cross-section, and the separation distance between the housing portion and the cup holder is reduced, resulting in vibration and noise possibility This can be reduced.

In addition, the portable air purifier according to the present invention is characterized in that the fixing of the sterilizing unit is made between the fan module unit and the filter case.

Specifically, the front of the sterilization unit is supported by the fixing protrusion provided in the filter case, and the rear side of the sterilization unit is supported by the fan module unit, so there is no need to additionally install a separate fixing bracket for fixing the sterilization unit. An increase in flow resistance can be minimized.

In addition, the portable air purifier according to the present invention is characterized in that a protruding rib is provided on the radially outer side of the bell mouse, the protruding rib is spaced apart from the shroud at a set interval, and an inclined surface parallel to the inclined surface of the shroud is formed. Due to this, the occurrence of flow loss due to the rotational wind is suppressed, and the rigidity of the fan base is increased, so that the effect of suppressing the deformation of the fan base due to an external force can be provided.

The portable air purifier according to the present invention may include a housing unit, a filter unit, a fan module unit, a filter case, and a sterilizer unit.

The housing part has an accommodation space therein, and may include an inlet for sucking air and an outlet for discharging air. In addition, the housing part may include a first case part and a second case part.

In the first case part, the filter part, the sterilization part, and the fan module part are installed inside. In addition, an inlet part is provided on one side of the first case part, and an exhaust part for discharging air is provided on the other side facing the inlet part.

Also, the first case unit may include a first case body and a service door. The first case body may include an inlet portion and an outlet portion, and a service space may be provided on the side surface.

The service door is detachably installed on the first case body, and the service space can be opened and closed. In addition, the service door may include a door body, a gap maintaining protrusion, and a first mounting groove. Also, the door body may be detachably installed on the first case body. In addition, the gap maintaining protrusion may protrude to the inside of the door body. In addition, the gap maintaining protrusion may extend toward at least one of the filter unit and the filter case.

In addition, the first mounting groove portion may form a groove in the vertical direction on the inner side of the door body.

In addition, the first case body may further include a second mounting groove portion for forming a groove in the vertical direction on the inner side of the first case body facing the first mounting groove portion. In addition, one side and the other side of the fan module in the width direction may be inserted into the first and second mounting grooves to restrict movement.

In addition, a plurality of inlet grills extending in the vertical direction may be installed on one side of the housing to form an inlet hole. In addition, the inlet grille can be extended in the longitudinal direction to guide the movement path of the air in the longitudinal direction. In addition, a plurality of discharge grills extending in the vertical direction may be installed on the other side of the housing to form a discharge hole. In addition, the exhaust grill can be extended in the longitudinal direction to guide the movement path of the air in the longitudinal direction. Also, the inlet hole and the outlet hole may face each other in a horizontal direction. In addition, the width direction length of the inlet part is shorter than the width direction length of the filter part.

In addition, the second case part is connected to the lower part of the first case part. In addition, a battery may be built inside the second case part.

An air flow path is formed inside the first case part, and an air flow path is not formed inside the second case part. In addition, the cross section of at least one of the first case part and the second case part may be circular or oval. In addition, the first case part and the second case part may be assembled after being molded, respectively, or may be integrally molded.

Also, the filter unit may be installed inside the housing unit facing the inlet unit. In addition, the filter unit is located inside the housing unit and may be installed in a shape facing the inlet unit. In addition, both sides of the filter part in the width direction may be installed in a state in contact with the inner side of the housing part. In addition, the filter unit has a rectangular parallelepiped shape extending in the vertical direction. In addition, the filter unit is mounted on the inside of the filter case can be restricted in movement.

In addition, in the filter case, the filter unit is detachably installed, and may be located between the filter unit and the fan module unit. In addition, the filter case may guide the movement of air from the filter unit to the fan module unit.

In addition, the filter case may include at least one of a case body, a flow path guide, a fixing support, a locking protrusion, a first fixing projection, a second fixing projection, and a first coupling projection.

The case body part is fixed to the inside of the housing part, and the filter part is mounted on the inside. In addition, both sides of the case body portion in the longitudinal direction may be opened.

In addition, the flow guide part is installed on one side of the case body, and may form a passage through which air moves from the filter part toward the fan module part.

In addition, the fixed support may be located in the center of the flow guide. In addition, the fixed support unit may include a protrusion extending in the vertical direction and supporting the sterilization unit.

In addition, the locking protrusion may protrude to the inside of the case body to restrict the movement of the filter unit. In addition, the filter unit caught on the protrusion may be installed to be spaced apart from the sterilization unit by a set distance.

Also, the first fixing protrusion may protrude upward from the case body and be fixed to the first boss provided inside the housing. In addition, the second fixing protrusion may protrude downward of the case body and be fixed to the second boss provided inside the housing.

The first coupling protrusion may protrude in a direction toward the fan module and be inserted into the fan module.

In addition, the flow path guide is installed on both sides of the fixed support, extends in the vertical direction, may be provided with a plurality of through-holes.

In addition, the fixing support part may include a filter frame that forms an inner hole extending in the vertical direction and is connected to the flow guide part, and a plurality of fixing protrusions protruding from the filter frame toward the inner hole.

In addition, the sterilization unit is mounted on the filter case, and can be irradiated with light for sterilization toward the filter unit. In addition, the sterilization unit is inserted into the filter frame, and can be caught on the fixing protrusion to restrict movement. In addition, the sterilization unit is installed in the center of the width direction of the filter case, and may extend in the vertical direction. In addition, the sterilization unit may include a printed circuit board extending in the vertical direction and a sterilization light source installed on both sides of the printed circuit board in the vertical direction to irradiate a light for sterilization toward the filter unit. In addition, the sterilization unit may be located at the center of the fan module unit in the width direction. In addition, two fan members may be installed in the vertical direction along the sterilization unit. In addition, the upper end of the sterilization unit may be installed at a lower position than the upper end of the hub of the fan member located above the sterilization unit. In addition, the lower end of the sterilization unit may be installed at a higher position than the lower end of the hub of the fan member located below the sterilization unit. In addition, the irradiation angle of the sterilizing light source irradiated by the sterilizing light source is 140 ° to 160 °.

In addition, the fan module unit may be installed inside the housing unit facing the discharge unit. In addition, the fan module unit may include a fan housing, a fan member, and a fan base. The fan housing is fixed to the inside of the housing part. The fan member is rotatably installed inside the fan housing, and can move air in a direction toward the exhaust unit. In addition, the fan base is coupled to the fan housing, and may guide the air that has passed through the filter unit to flow into the fan member. In addition, the width direction length of the fan module part is formed to be longer than the width direction length of the discharge part.

In addition, the fan housing may surround the fan member and be coupled to the fan base. In addition, the fan housing, the fan member, and the fan base may be formed of a module. In addition, two fan housings and two fan members may be installed in the vertical direction of the fan base. Also, the central axis of rotation of the fan member may cross the sterilization unit at right angles.

In addition, the fan housing may include at least one of a support plate, a connecting support, a side support, and a protruding boss. The support plate may be installed in a plate shape at a position facing the fan member. The connecting support may extend to the outside of the support plate. In addition, the side support part is connected to the connection support, and may form a frame of a circular or rectangular shape around the support plate. In addition, the protruding boss protrudes from the side support portion toward the fan base, and may be coupled to the fan base.

In addition, the fan housing may include a wire guide that is installed consecutively on the connection support and supports the wires installed along the side of the connection support. In addition, the fan housing may include a wire fixing protrusion that protrudes from the side support and is located in the lateral direction of the wire located outside the connection support to restrict the separation of the wire.

In addition, the fan member is located at the center of the fan housing, and may include a hub that rotates by receiving external power. Also, the fan member may include a plurality of fan blades spaced apart from each other at equal intervals along the outer circumferential surface of the hub. In addition, the fan member may include a shroud connected to the end of the fan blade, installed in an annular shape, and spaced apart from the fan base.

Also, the outer diameter of the hub and the inner diameter of the shroud may gradually decrease in a direction from the outlet to the inlet.

In addition, the fan base may include at least one of a base plate, a bell mouse, a coupling protrusion, and a protruding rib.

The base plate has a hollow for air movement and has a plate shape extending in the vertical direction. In addition, the bell mouse may be installed in an annular shape on the inside of the base plate facing the hollow. In addition, the bell mouse may have a concave longitudinal cross-section surrounding the lower side of the entrance protrusion of the shroud. In addition, the coupling protrusion may protrude from the base plate and be coupled to the protruding boss of the fan housing. In addition, the protruding rib may be installed in an annular shape surrounding the outer periphery of the bell mouse. In addition, the protruding ribs may be installed parallel to the outside of the fan member.

Also, the air introduced into the inlet may be guided in a horizontal direction, pass through the filter unit, the filter case, and the fan module in turn, and then be discharged to the outside of the housing through the discharge unit.

In addition, the first horizontal center line passing through the center of the housing in the transverse direction is located in the middle of the inlet portion and the discharge portion.

Also, when the distance between the first horizontal center line and the filter unit is D1 and the distance between the first horizontal center line and the fan module unit is D2, D1 and D2 have different values. Also, D1 may have a larger value than D2.

In addition, the second horizontal center line intersecting at right angles with the first horizontal center line at the center of the housing unit and extending in the lateral direction may pass through the width direction center of the inlet part, the filter part, the sterilization part, the fan module part, and the discharge part.

In addition, a plurality of fan members provided in the fan module unit may be installed in the vertical direction. In addition, the sterilization unit may be installed at a position parallel to the vertical virtual line extending vertically and intersecting the rotational center axis of the fan member in the vertical direction. In addition, one side of the sterilization unit may be supported by the fixing protrusion of the filter case. In addition, the other side of the sterilization unit may be supported by the fan module unit.

In the portable air purifier according to the present invention, since a sterilizing unit is installed between the filter unit and the fan module unit to sterilize the filter unit, it is possible to block air pollution.

In addition, according to the present invention, the sterilization unit is installed between the filter unit and the fan module unit, and the sterilization light irradiated toward the filter unit shielding the inlet unit blocks leakage to the outside of the housing unit, thereby providing a safe use environment.

In addition, the present invention can fix the sterilization part between the filter case and the fan module part or fix the sterilization part on the inside of the filter case without a separate fixing bracket to fix the sterilization part, thereby minimizing an increase in air flow resistance. It can improve air purification performance.

In addition, the present invention may add a separate fixing bracket for fixing the sterilization unit. In addition, according to the present invention, the fixing bracket for fixing the sterilization unit is installed at a position to minimize an increase in air flow resistance, thereby improving air purification performance.

In addition, in the present invention, in a state in which the sterilization unit is located in the center of the width direction of the fan module unit and extends in the vertical direction, the upper and lower ends of the sterilization unit do not protrude to the outside of the hub of the fan member. Since the upper and lower ends of the fan module do not face the suction space formed on the outside of the hub, it is possible to improve air purification performance by minimizing an increase in flow resistance of air sucked into the fan member.

In addition, in the present invention, since the air introduced into the inlet of the housing moves in the horizontal direction and passes through the filter unit, the sterilization unit, and the fan module in turn, the housing unit is discharged through the discharge unit. improved, and the air movement path is shortened to improve air purification performance.

In addition, in the present invention, since the fan module unit is installed closer to the first horizontal center line than the filter unit, the decrease in air purification efficiency is minimized and the filter unit is sterilized to prevent air pollution, thereby improving customer satisfaction.

In addition, in the present invention, the second case part is mounted on a structure having a groove shape concave toward the lower side, such as a cup holder, and air can be sucked through the inlet part provided in the first case part without interfering with external structures. The purification performance can be improved.

In addition, in the present invention, since the cross section of the housing portion installed in the concave groove portion such as a cup holder of a vehicle is made in a circular or oval shape, the separation distance between the housing portion and the cup holder is reduced compared to the housing portion having a polygonal cross section, thereby reducing vibration and noise can reduce the incidence.

In addition to the above-described effects, the specific effects of the present invention will be described together while describing specific details for carrying out the invention below.

1 is a perspective view showing a portable air purifier according to an embodiment of the present invention.
2 is a front view of a portable air purifier according to an embodiment of the present invention.
3 is a rear view of a portable air purifier according to an embodiment of the present invention.
4 is a plan view of a portable air purifier according to an embodiment of the present invention.
5 is a perspective view illustrating a state in which the second case part is separated from the portable air purifier according to an embodiment of the present invention.
6 and 7 are exploded perspective views of a portable air purifier according to an embodiment of the present invention.
8 is a view showing an air flow path passing through the portable air purifier in a horizontal direction according to an embodiment of the present invention.
9 is an exploded perspective view of a housing part according to an embodiment of the present invention.
10 is a plan cross-sectional view of a portable air purifier according to an embodiment of the present invention.
11 is a view illustrating a movement direction of air passing through a portable air purifier according to an embodiment of the present invention.
12 is a front view illustrating a state in which the sterilization unit is installed between the fan module unit and the filter unit according to an embodiment of the present invention.
13 and 14 are perspective views illustrating a state in which the filter case according to an embodiment of the present invention is positioned between the sterilization unit and the filter unit.
15 is a perspective view illustrating a filter case according to an embodiment of the present invention.
16 is a view showing a state in which the sterilization unit is installed in the center of the fan module unit according to an embodiment of the present invention.
17 is a perspective view illustrating a state in which the fan housing is separated from the fan module unit according to an embodiment of the present invention.
18 is a perspective view illustrating a fan housing according to an embodiment of the present invention.
19 is a perspective view illustrating an inside of a fan housing according to an embodiment of the present invention.
20 is a perspective view illustrating a shroud of a fan member according to an embodiment of the present invention.
21 is a perspective view illustrating a shaft coupling portion of a fan member according to an embodiment of the present invention.
22 is a front view of a fan member according to an embodiment of the present invention.
23 is a view illustrating a hub of a fan member according to an embodiment of the present invention.
24 is a cross-sectional view of a fan member according to an embodiment of the present invention.
25 is a perspective view illustrating a state in which the fan base is separated from the filter case according to an embodiment of the present invention.
26 is a perspective view illustrating a fan base according to an embodiment of the present invention.
27 is a view showing a state in which the sterilization unit is installed in a state spaced apart from the filter unit according to an embodiment of the present invention.
28 is a view illustrating a state in which the sterilization unit irradiates a light for sterilization toward the filter unit according to an embodiment of the present invention.
29 is a view showing a state in which a locking protrusion is installed on the rear surface of the sterilization unit according to an embodiment of the present invention.

The above-described objects, features and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

Although the first, second, etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from other components, and unless otherwise stated, it goes without saying that the first component may be the second component.

In the following, that an arbitrary component is disposed on the "upper (or lower)" of a component or "upper (or below)" of a component means that any component is disposed in contact with the upper surface (or lower surface) of the component. Furthermore, it may mean that other components may be interposed between the component and any component disposed on (or under) the component.

In addition, when it is described that a component is “connected”, “coupled” or “connected” to another component, the components may be directly connected or connected to each other, but other components are “interposed” between each component. It should be understood that “or, each component may be “connected,” “coupled,” or “connected,” through another component.

Throughout the specification, unless otherwise stated, each element may be singular or plural.

As used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “consisting of” or “comprising” should not be construed as necessarily including all of the various components or various steps described in the specification, some of which components or some steps are It should be construed that it may not include, or may further include additional components or steps.

Throughout the specification, when “A and/or B” is used, it means A, B or A and B, unless otherwise stated, and when “C to D” is used, it means that there is no specific opposite description. Unless otherwise specified, it means that it is greater than or equal to C and less than or equal to D.

[Appearance of portable air purifier]

1 is a perspective view showing a portable air purifier 1 according to an embodiment of the present invention, FIG. 2 is a front view of the portable air purifier 1 according to an embodiment of the present invention, and FIG. It is a rear view of the portable air purifier 1 according to an embodiment, and FIG. 4 is a plan view of the portable air purifier 1 according to an embodiment of the present invention.

1 to 4, the portable air purifier 1 according to the embodiment of the present invention may be formed in a substantially cylindrical shape. The portable air purifier (1) has an outer shape formed by the housing (10). In addition, the portable air purifier 1 according to this embodiment sucks air through the inlet part 32 provided on one side of the housing part 10 , and an exhaust part provided on the other side of the housing part 10 . Air is discharged through (36).

The housing part 10 may be composed of a first case part 20 and a second case part 60 , and the first case part 20 and the second case part 60 are the portable air purifiers 1 . Forms the external skeleton. A plurality of components are accommodated in the first case unit 20 and the second case unit 60 .

The first case portion 20 may be formed so that both sides are opened in the first direction, which is the longitudinal direction (E). That is, both sides of the first case portion 20 in the longitudinal direction E may be opened. The inlet part 32 may be disposed on one side of the first case part 20 in the first direction, and the discharge part 36 may be disposed on the other side of the first case part 20 in the first direction.

The inlet part 32 and the outlet part 36 are installed on opposite sides of the first case part 20 . In addition, since the inlet part 32 and the outlet part 36 are installed at positions facing each other, the air moved through the inlet part 32 is moved in the horizontal direction and discharged through the outlet part 36, so the movement path of the air is shortened, so that air circulation can be made smoothly.

A second case unit 60 is connected to a lower side of the first case unit 20 , and the second case unit 60 may have a cylindrical shape. Alternatively, the cross section of the first case part 20 and the second case part 60 may be formed in a circular or elliptical shape and thus may have a case shape extending in the vertical direction.

The portable air purifier 1 may have a cylindrical shape with a curved surface on the outside, such as an erect cylindrical shape having a long length in the vertical direction as a whole, or an elliptical column shape.

Therefore, the portable air purifier 1 can be stably mounted by being inserted into a recess concave downwardly like a cup holder. In addition, since the outside of the portable air purifier 1 is curved in a curved shape, the user can easily hold and move the outside of the portable air purifier 1 .

define the direction The direction in which the first case part 20 is positioned with respect to the second case part 60 is referred to as upper and upper side, and the direction in which the second case part 60 is positioned with respect to the first case part 20 is referred to as referred to as lower, lower. In addition, the "longitudinal direction (E)" and the "first direction" are the same direction, and the direction connecting the inlet part 32 and the outlet part 36 of the housing part 10 is defined as the longitudinal direction (E). In addition, the "width direction (W)" and the "second direction" are the same direction and are perpendicular to the longitudinal direction E and extend in the horizontal direction. In addition, both the longitudinal direction (E) and the width direction (W) are perpendicular to the vertical direction (H). In addition, the "up and down direction (H)" and the "third direction" are the same direction, and are the same as the up-down direction H and the vertical direction. The direction setting as described above is based on when the portable air purifier 1 is placed on the same plane as the horizontal line.

[Overall structure of portable air purifier]

5 is a perspective view illustrating a state in which the second case unit 60 is separated from the portable air purifier 1 according to an embodiment of the present invention, and FIGS. 6 and 7 are a portable air purifier according to an embodiment of the present invention. It is an exploded perspective view of the air purifier (1).

5 to 7 , the portable air purifier 1 according to an embodiment of the present invention includes a housing 10 , a filter unit 70 , a fan module unit 140 , and a filter case 80 . ) and a sterilization unit 210 may be included.

The first case part 20 and the second case part 60 form an external skeleton of the portable air purifier (1). An accommodating space 22 is formed inside the first case part 20 and the second case part 60 . In the accommodating space 22 , the filter unit 70 , the filter case 80 , the fan module unit 140 , the sterilization unit 210 , and electrical components including the battery 220 are accommodated. The first case part 20 and the second case part 60 are preferably formed to have sufficient strength to protect the components accommodated in this way from external impact.

The filter unit 70 is installed in the accommodating space 22 of the first case unit 20 , and is disposed between the fan module unit 140 and the inlet unit 32 . That is, the filter unit 70 is spaced apart from the fan module unit 140 by a set distance, and is disposed on one side of the fan module unit 140 in the longitudinal direction (E). Accordingly, the filter unit 70 serves to purify the air sucked in through the inlet 32 of the portable air purifier 1 . The air purified while passing through the filter unit 70 passes through the fan module unit 140 and the discharge unit 36 and is discharged toward the “‡” side of the portable air purifier 1 .

The filter unit 70 may be formed of a single filter, and if necessary, a plurality of filters may be installed in a stacked state. In addition, the filter unit 70 is fixed by the filter case 80 for fixing the filter.

The filter case 80 is fixed to the inside of the first case part 20 , and an insertion space for accommodating the filter is formed inside the filter case 80 .

The fan module unit 140 is accommodated in the accommodating space 22 inside the first case unit 20 , and may be disposed between the discharge unit 36 and the filter unit 70 . More specifically, the fan module unit 140 may be disposed between the discharge unit 36 and the filter case 80 . In addition, the sterilization unit 210 may be installed inside the filter case 80 or may be installed between the filter case 80 and the fan module unit 140, and various modifications are possible.

The fan module unit 140 is located on the other side of the filter unit 70 in the first direction, and the discharge unit 36 is located on the other side of the first case unit 20 facing the fan module unit 140 . The fan module unit 140 sucks air introduced into one side of the filter unit 70 through the inlet unit 32 and removes the discharge unit 36 provided on the other side of the first case unit 20 . It serves to discharge air to the other side of the first case portion 20 through the.

In this embodiment, it is exemplified that the fan module unit 140 includes a flow fan. The fan module unit 140 may suck in air that has passed through the filter unit 70 in the axial direction and discharge it in a direction between the axial direction and the radial direction.

The sterilization unit 210 is positioned between the filter unit 70 and the fan module unit 140 , and may be fixed to at least one of the filter case 80 and the fan module unit 140 .

The sterilization unit 210 may be fixed to the filter case 80 . However, according to another embodiment of the present invention, the sterilization unit 210 is fixed to the fan module unit 140 , or fixed between the fan module unit 140 and the filter case 80 , or to the housing unit 10 . Various modifications are possible, such as being able to be fixed.

If the sterilization unit 210 is fixed to the fan module unit 140 , a separate bracket for fixing the sterilization unit 210 to the fan module unit 140 is required, thereby increasing the production cost. In addition, since the sterilization unit 210 is installed in a protruding shape on the outside of the fan module unit 140 , the size of the filter case 80 and the filter unit 70 becomes relatively small, so that the air filtration performance may be deteriorated. . In addition, when the sterilization unit 210 is integrally installed inside the fan module unit 140 , the size of the fan member is reduced due to the installation of the sterilization unit 210 , thereby reducing the blowing ability. In addition, when the sterilization unit 210 is installed in the fan module unit 140, the frictional resistance between the air sucked into the inlet of the fan module unit 140 and the sterilization unit 210 increases, thereby reducing the blowing ability. can have

In the present invention, the sterilization unit 210 is fixed to the filter case 80 in order to solve the above problems.

Since the sterilization unit 210 according to an embodiment of the present invention is fixed to the filter case 80 , the sterilization light irradiated from the sterilization unit 210 goes to the filter unit 70 without interfering with the filter case 80 . It is possible to prevent deterioration of the sterilization performance of the sterilization unit 210 by being irradiated. If the sterilization unit 210 is fixed to the fan module unit 140, since the sterilization light irradiated from the sterilization unit 210 interferes with the filter case 80 fixing the filter unit 70, the sterilization unit 210 sterilization performance may be reduced.

In addition, the filter case 80 , the sterilization unit 210 , and the filter unit 70 form one module and are mounted inside the housing unit 10 . Since the sterilization unit 210 sterilizes the filter unit 70 by irradiation with a sterilizing light, the installation position of the sterilization unit 210 and the distance between the filter unit 70 and the sterilization unit 210 are important design factors.

Therefore, when the filter case 80, the sterilization unit 210, and the filter unit 70 are installed as one module, the installation position of the fan module unit 140, etc. is variable depending on the model of the portable air purifier 1 However, since the distance between the sterilization unit 210 and the filter unit 70 is a fixed design element, the sterilization of the filter unit 70 can be performed stably, and an increase in cost caused when a design is changed can be reduced.

In addition, since the sterilization unit 210 is installed in a state inserted inside the filter case 80, a separate bracket for fixing the sterilization unit 210 is not required, thereby reducing production costs. In addition, since the sterilization unit 210 is installed in a state inserted inside the filter case 80, the size of the fan module unit 140 and the filter unit 70 due to the installation of the sterilization unit 210 is prevented from being reduced. It is possible to prevent the deterioration of the ventilation capacity and air filtration capacity.

In addition, since the sterilization unit 210 fixed to the filter case 80 is installed to be spaced apart from the fan module unit 140 , the area of the inlet through which air is sucked into the fan module unit 140 is not reduced. However, when the sterilization unit 210 is fixed to the fan module unit 140 , the area of the inlet through which air is sucked into the fan module unit 140 may be reduced, so that the blowing ability may be reduced.

Accordingly, the sterilization unit 210 may be fixed to at least one of the filter case 80 , the fan module unit 140 , and the housing unit, but it is more preferable that the sterilization unit 210 is fixed to the filter case 80 .

The sterilization unit 210 is spaced apart from the filter unit 70 by a set distance, and irradiates a light for sterilization toward the filter unit 70 . Since the light for sterilization irradiated from the sterilization unit 210 is harmful to the human body, the installation position of the sterilization unit 210 is set so that the light for sterilization does not flow out of the portable air purifier 1 through the inlet 32 . do.

In addition, since the sterilization unit 210 is installed between the filter unit 70 and the fan module unit 140 to sterilize the filter unit 70 , it is possible to block air pollution. The sterilization unit 210 is installed between the filter case 80 supporting the filter unit 70 and the fan module unit 140 , and the filter unit 70 is irradiated with light for sterilization from the sterilization unit 210 . can be sterilized. In addition, the sterilization unit 210 is installed between the fan module unit 140 and the filter unit 70, and the light for sterilization is irradiated toward the filter unit 70 that shields the inlet 32, so it is harmful to the human body. It is possible to block the light for sterilization from being exposed to the outside of the housing unit 10 .

The battery 220 is installed in the accommodating space 22 provided inside the second case unit 60 , and may supply power for driving the portable air purifier 1 .

[Part arrangement structure of portable air purifier]

8 is a view showing an air flow path passing in a horizontal direction through the portable air purifier 1 according to an embodiment of the present invention, and FIG. 10 is a plan view of the portable air purifier 1 according to an embodiment of the present invention. It is a cross-sectional view, and FIG. 11 is a view showing the movement direction of air passing through the portable air purifier 1 according to an embodiment of the present invention.

2, 8, 10 and 11, the accommodation space 22 provided inside the portable air purifier 1 is divided into a first area (A) and a second area (B). can be When the accommodation space 22 is divided in the vertical direction (H), the upper area becomes the first area (A), and the lower area becomes the second area (B). It should be noted that the first area (A) and the second area (B) are not physically partitioned areas, but are only conceptually separated areas.

In one embodiment of the present invention, the accommodation space 22 of the first case part 20 forming the skeleton of the portable air purifier 1 is set as the first area A, and the second case part 60 The receiving space 22 inside is set as the second area (B).

In the first area (A), components related to air intake, purification, and discharge are arranged. That is, in the first area A, the inlet part 32, the filter part 70, the fan module part 140, and the exhaust part 36 are disposed, and the filter case 80 and the sterilization part 210 are provided if necessary. ) may be additionally installed. Accordingly, in the first region A, the air flows through the first case portion 20 in the horizontal direction.

An inlet part 32 having a plurality of inlet holes 34 as a passage for air intake is installed on one side (the right side of FIG. 8 ) of the first case part 20 . A discharge unit 36 having a plurality of discharge holes 38 as a passage for discharging air purified in the first area A is installed on the other side (left side of FIG. 8 ) of the first case unit 20 . Accordingly, an air passage in the longitudinal direction (E) connecting the inlet part 32 , the filter part 70 , the fan module part 140 and the exhaust part 36 is formed inside the first case part 20 .

That is, in the first region A, an inlet part 32 , a filter part 70 , a filter case 80 , a sterilization part 210 , and an exhaust part 36 are provided, and the portable air purifier 1 is sucked into the inside. A flow path necessary for the filtered air to pass through the inside of the air purifier is formed in the first area (A).

In the second area (B), components not directly related to the flow of air for air purification are arranged. That is, in the second area B, a control unit including a PCB and a battery 220 may be installed.

According to the present embodiment, the first case portion 20 and the second case portion 60 are formed in a cylindrical or elliptical columnar shape having a vertical (H) length longer than a lateral length. In addition, the first region (A) disposed on the upper portion is formed to have a longer length in the vertical direction (H) than the second region (B) disposed on the lower portion. That is, when the portable air purifier 1 is erected in the vertical direction, the upper first area (A) occupies a wider area than the lower second area (B).

The battery 220 may be installed inside the second case part 60 in which the second region B is formed. The battery 220 may be provided to have a heavier weight than the combined weight of the fan module unit 140 , the filter unit 70 , the filter case 80 , and the sterilization unit 210 .

In general, since the weight per unit volume of the battery 220 is much heavier than the weight per unit volume of the fan module unit 140 , the filter unit 70 , the filter case 80 , and the sterilization unit 210 , Even without artificially increasing the weight or size, the battery 220 has a heavier weight than the fan module unit 140 , the filter unit 70 , the filter case 80 , and the sterilization unit 210 .

When the battery 220, which is a heavy object, is disposed under the portable air purifier 1, the center of gravity of the portable air purifier 1 is inclined from the center in the vertical direction (H) to the lower side. That is, the center of gravity of the portable air purifier 1 is moved to the lower side of the portable air purifier 1 on which the battery 220 is disposed.

As described above, when the center of gravity of the portable air purifier 1 is focused on the lower side of the portable air purifier 1 on which the battery 220 is disposed, the portable air purifier 1 will The risk of transmission is reduced.

That is, when the portable air purifier 1 is erected in the vertical direction, the center of gravity of the portable air purifier 1 is located on the lower side due to the battery 220 disposed under the portable air purifier 1, The purifier 1 does not easily fall over.

In addition, when the heavy battery 220 is disposed below the portable air purifier 1 , other components constituting the portable air purifier 1 should be disposed above the battery 220 . That is, the sterilization unit 210 for sterilizing the air intake, purification, and discharge-related components and the filter unit 70 should be disposed at a higher position than the battery 220 .

In order to secure the charging capacity of the battery 220 necessary for smooth use of the portable air purifier 1, the size of the battery 220 is required to be greater than or equal to a certain size. Therefore, an installation space of a certain size or more is required for the installation of the battery 220 even inside the portable air purifier 1 . And since it is difficult to form a flow path for the flow of air in the space where the battery 220 is installed, components related to air intake, purification, and discharge avoid the battery 220 , that is, a position higher than the battery 220 . can only be placed in

With this arrangement structure, a flow path for suction, purification, and discharge of air in the portable air purifier 1 is formed in the first area A, which is higher than the battery 220 . Accordingly, the intake of air to the portable air purifier 1 and the discharge of the purified air from the portable air purifier 1 are also made at a higher position than the position where the battery 220 is installed.

As such, when the purified air is discharged from the top of the portable air purifier 1, the air purified from the portable air purifier 1 can more easily reach the user's face.

In order to increase the amount of air purified by the portable air purifier (1) reaching the user's face when the portable air purifier (1) is placed on the floor at a lower position than the user's face, the portable air purifier (1) It is more advantageous to use it vertically than to lay it horizontally.

To this end, when the portable air purifier 1 is erected in the vertical direction and the purified air is discharged from the top of the portable air purifier 1, the amount of air purified by the portable air purifier 1 reaching the user's face This will increase further.

And, the battery 220, which is a heavy object, is disposed below the portable air purifier 1, and accordingly, the components related to air intake, purification, and discharge are disposed at a higher position than the battery 220, the portable air purifier. It can also contribute to the expansion of the installation scope of (1).

As an example, when the portable air purifier 1 is used in a state of being plugged into a cup holder in a vehicle, an area in which air is sucked and an area in which air is purified and discharged may be disposed at a higher position than the cup holder. Accordingly, the portable air purifier 1 can maintain a high level of air purification performance while being stably mounted in the vehicle. To this end, it is preferable that the length of the second region (B) in the vertical direction (H) in which the battery 220 is disposed is set to be greater than or equal to the depth of the cup holder.

As another example, if the lower area of the portable air purifier 1 is fixed using a clamp-type cradle, this also does not block the area where the air is sucked in and the area where the purified air is discharged. It is possible to stably fix the portable air purifier (1) without it.

In addition, even when the user's hand holds the lower part of the portable air purifier 1 and moves, the portable air purifier 1 does not block the area where the air is sucked in and the area where the purified air is discharged. stable movement is possible.

That is, components that are not directly related to the flow of air for air purification, such as the battery 220, are arranged under the portable air purifier 1, and through the lower part of the portable air purifier 1, the portable air purifier ( By allowing the mounting and fixing of 1) to be made, it is possible to provide a high level of air purification performance of the portable air purifier 1 and to ensure stable fixing together.

The portable air purifier 1 according to an embodiment of the present invention having the above structure includes a first case part 20 having an inlet part 32 and an exhaust part 36 on the upper side of the second case part 60 . ) is installed. The first case part 20 is connected to the upper side of the second case part 60 where the electrical components are installed, and the inlet part 32 for sucking air into the first case part 20 and the exhaust part for discharging the air (36) is provided. Therefore, in a state in which the first case part 20 is inserted into a structure having a groove shape concave downward, such as a cup holder, the suction of air into the inside of the first case part 20 through the inlet part 32 is After being easily made, air is discharged in the lateral direction of the first case unit 20 through the discharge unit 36 of the first case unit 20, so that air cleaning efficiency can be improved.

The inner space of the first case part 20 may be divided into a direction toward the inlet part 32 and a direction toward the discharge part 36 based on the first horizontal center line P1 . The first horizontal center line P1 is an imaginary line passing through the center of the housing 10 and extends in the horizontal direction. In addition, the first horizontal center line (P1) is located in the middle of the inlet portion 32 and the discharge portion (36).

The filter part 70 is positioned in the direction toward the inlet part 32 based on the first horizontal center line P1, and the fan module part 140 and the sterilization part 210 in the direction toward the discharge part 36. is located Accordingly, the air passing through the inlet part 32 passes through the filter part 70 and moves to the inside of the fan module part 140 in a state in which foreign substances in the air are removed. Accordingly, since the fan module unit 140 can be prevented from being contaminated by foreign substances contained in the air, durability of the fan module unit 140 can be improved, and maintenance costs can be reduced.

In addition, since the sterilization unit 210 sterilizes the filter unit 70 using the sterilizing light beam, an irradiation distance for irradiating the sterilizing light beam is essential. Therefore, when the sterilization unit 210 is located on the first horizontal center line P1 or is installed in the area facing the inlet 32 with respect to the first horizontal center line P1, the installation area of the filter unit 70 Since this is excessively reduced, there is a problem in that air purification performance is deteriorated.

As shown in FIG. 11 , the area facing the inlet part 32 with respect to the first horizontal center line P1 is an area between the first horizontal center line P1 and the inlet part 32 .

Therefore, when the sterilization unit 210 is installed in the region located between the first horizontal center line P1 and the discharge unit 36, the sterilization light is irradiated from the sterilization unit 210 toward the filter unit 70. distance can be secured. In addition, since the installation area of the filter part 70 for removing impurities in the air introduced through the inlet part 32 can be secured, deterioration of air purification performance can be prevented.

However, when the sterilization unit 210 is installed on the first horizontal center line P1 or between the first horizontal center line P1 and the inlet part 32, the filter unit 70 in the sterilization unit 210 is installed. The irradiation distance for irradiating the sterilization beam toward the Therefore, since the sterilization of the filter unit 70 is not performed properly, the contaminated air may be discharged.

In addition, when the installation area of the filter unit 70 is reduced in order to secure an irradiation distance for irradiating the light for sterilization from the sterilization unit 210 toward the filter unit 70 , the air purification performance may be deteriorated.

In order to solve the above problems, since the sterilization unit 210 is installed in the area facing the discharge unit 36 with the first horizontal center line P1 as the center, the installation area of the filter unit 70 is increased to purify the air. Performance degradation can be prevented.

However, when a separate fixing bracket for fixing the sterilization unit 210 is added, the installation area of the fan module unit 140 is reduced, and thus the blowing ability of the fan module unit 140 is lowered, so that the air purification performance is deteriorated. There is a problem of lowering.

In order to solve the above problems, the sterilization unit 210 is fixed between the filter case 80 and the fan module unit 140 without adding a separate fixing bracket to fix the sterilization unit 210 . Alternatively, since the sterilizing unit 210 is fixed to the inside of the filter case 80, an increase in air flow resistance can be minimized to improve air purification performance.

That is, since the front surface of the sterilization unit 210 is supported by the filter case 80 and the rear surface of the sterilization unit 210 is supported by the fan module unit 140 , a separate fixing for fixing the sterilization unit 210 is provided. Since there is no need to install additional brackets, the increase in air flow resistance can be minimized. In addition, since the installation area of the fan module unit 140 is not reduced, it is possible to prevent a decrease in the blowing ability of the fan module unit 140 , thereby preventing a decrease in air purification performance.

Meanwhile, the filter part 70 is located inside the inlet part 32 , and both sides of the filter part 70 in the width direction W are installed in contact with the inside of the first case part 20 . Therefore, since the sterilization light irradiated toward the filter unit 70 that shields the inlet 32 is prevented from leaking to the outside of the housing unit 10, a safe use environment can be provided.

[Detailed composition of portable air purifier parts]

9 is an exploded perspective view of the housing unit 10 according to an embodiment of the present invention. 8 and 9 , the portable air purifier 1 according to an embodiment of the present invention includes a housing 10 , a filter unit 70 , a filter case 80 , and a fan module unit 140 . ) and at least one of the sterilizing unit 210 and the battery 220 may be included.

The housing part 10 has an accommodation space 22 formed therein, and various modifications can be implemented within the technical concept having an inlet part 32 for sucking air and an exhaust part 36 for discharging air. The housing unit 10 according to an embodiment of the present invention may include a first case unit 20 and a second case unit 60 .

The first case unit 20 includes a filter unit 70 , a sterilization unit 210 , and a fan module unit 140 installed inside. In addition, an inlet part 32 is provided on one side of the first case part 20 , and an exhaust part 36 for discharging air is provided on the other side facing the inlet part 32 . The first case unit 20 may be formed of a single member, or may be formed of a plurality of members if necessary. The first case unit 20 according to an embodiment of the present invention may include a first case body 30 and a service door 50 .

The first case body 30 has an accommodating space 22 formed therein, and an inlet part 32 for sucking air is provided on one side of the first case body 30 , and faces the inlet part 32 . A discharge part 36 is provided on the other side of the first case body 30 .

The first case body 30 may be formed in a pipe shape having a cylindrical or elliptical cross-section, and, if necessary, has a cross section in which a diameter in the width direction (W) is longer than a diameter in the length direction (E) and extends in the vertical direction. can be The side of the first case body 30 is opened to form a service space, and the service door 50 is detachably installed on the side of the first case body 30 .

The upper and lower sides of the first case body 30 having an inlet part 32 and an outlet part 36 and having a service space on the side thereof may be installed in a closed shape. The service door 50 is easily detachably installed in the first case body 30 to open and close the service space.

The first case body 30 according to an embodiment of the present invention includes an inlet part 32 , an outlet part 36 , a second mounting groove part 40 , a first boss 42 , and a second boss 44 . may include at least one of

The inlet portion 32 includes an inlet grill 33 extending in the vertical direction, and an inlet hole 34 is provided between the plurality of inlet grills 33 . A plurality of inlet grilles 33 may be installed on one side of the housing 10 to form an inlet hole 34 for air intake. Since the cross section of the inlet grill 33 extends in the longitudinal direction E, the inlet hole 34 positioned between the inlet grills 33 is also formed along the longitudinal direction E. Therefore, the movement of the air introduced through the inlet 32 is guided along the longitudinal direction (E).

Since the inlet hole 34 guides the flow of air flowing into the first case part 20 in the longitudinal direction E, the movement path of the air passing through the first case part 20 is shortened and thus more Since the air is purified in a short time, the air cleaning efficiency can be improved.

In addition, since the inlet part 32 extends in the vertical direction from one side of the first case part 20 , one side of the first case part 20 is used as a space for air intake. In addition, since the inlet part 32 is formed along one side of the curved first case part 20 , the inlet hole 34 compared to the inlet part 32 installed along a straight line parallel to the filter part 70 . number is increased According to the shape of the inlet part 32 , the intake flow rate of air is increased, so that air cleaning efficiency can be improved.

The discharge part 36 includes a discharge grill 37 extending in the vertical direction, and a discharge hole 38 is provided between the plurality of discharge grills 37 . A plurality of exhaust grills 37 may be installed on the other side of the housing 10 to form an exhaust hole 38 for discharging air. Since the cross-section of the exhaust grill 37 extends in the longitudinal direction (E), the discharge hole 38 located between the exhaust grills 37 is also formed along the longitudinal direction (E). Therefore, the air discharged through the discharge unit 36 is guided to be discharged in the longitudinal direction (E) along the discharge grill (37).

The discharge hole 38 guides the flow of air discharged to the outside of the first case portion 20 in the longitudinal direction E, so that the air passing through the first case portion 20 together with the inlet 32 It leads to shortening of the movement path.

In addition, since the discharge unit 36 extends in the vertical direction from the other side of the first case unit 20 , most of the space on the other side of the first case unit 20 may be utilized as a space for air discharge. In addition, since the discharge unit 36 is formed along the other side of the curved first case unit 20, the discharge hole 38 compared to the discharge unit 36 installed along a straight line parallel to the fan module unit 140 the number of is increased. Since the discharge flow rate of air is increased according to the shape of the discharge unit 36 , air cleaning efficiency can be improved.

In addition, the inlet hole 34 and the discharge hole 38 may be installed to face each other in the horizontal direction. Since the inlet hole 34 and the outlet hole 38 are installed at positions facing each other in the longitudinal direction (E), the air introduced through the inlet hole 34 moves in the horizontal direction and then through the outlet hole 38 It is discharged to the outside of the first case portion (20). Therefore, by inducing that the movement path of the air passing through the first case unit 20 becomes the shortest distance, frictional resistance is minimized during air movement, and air cleaning efficiency is improved because more air can be purified within a short time by improving the blowing ability. can improve In addition, electricity consumption may be reduced by reducing the power consumption required for the operation of the fan module unit 140 .

On the other hand, the width direction (W) length of the inlet part 32 is shorter than the width direction (W) length of the filter part (70). Accordingly, since the air introduced toward the inlet 32 passes through the filter unit 70 and is purified, the air cleaning performance can be improved. If the width direction (W) length of the inlet part 32 is equal to or smaller than the width direction (W) length of the filter part 70 , the air introduced through the inlet part 32 passes through the filter part 70 . Since it cannot do so and may be moved directly to the fan module unit 140 , the air purification ability may be deteriorated.

The first boss 42 and the second boss 44 in the shape of protrusions protruding to the inside of the first case body 30 are coupled to the filter case 80 to restrict the movement of the filter case 80 . The first boss 42 and the second boss 44 are installed inside the first case body 30 facing the service door 50, and the first fixing protrusion 130 of the filter case 80 to be described later. and the second fixing protrusion 132 is fixed. Since the first boss 42 and the second boss 44 are installed at positions facing the service door 50, the first boss 42 and the second boss 44 are in a state in which the service door 50 is separated. ) is visible to the operator. Therefore, since the filter case 80 fastened to the first boss 42 and the second boss 44 is easily separated, the time and cost required for the maintenance work including the replacement of the filter unit 70 is reduced. can save

One side and the other side of the fan module 140 in the width direction W may be inserted into the first mounting groove 56 and the second mounting groove 40 to restrict movement. The first mounting groove portion 56 is in the shape of a groove extending in the vertical direction on the inside of the service door 50 , and the second mounting groove portion 40 is in the shape of a groove extending in the vertical direction on the inside of the first case body 30 . to be.

The first mounting groove portion 56 and the second mounting groove portion 40 are respectively located on both sides of the discharge portion 36 in the width direction (W), and both sides of the fan module portion 140 have the first mounting groove portion 56 . And since it is inserted into the second mounting groove portion 40, the fan module portion 140 can be stably fixed. In addition, since a separate bracket for fixing the fan module 140 is not used, it is possible to design a miniaturized portable air purifier 1, and it is possible to reduce production and maintenance costs by reducing the number of parts.

The service door 50 is detachably installed on the first case body 30 , and various modifications are possible within the technical idea of opening and closing the service space provided on the side of the first case body 30 . The service door 50 according to an embodiment of the present invention may include at least one of the door body 52 , the gap maintaining protrusion 54 , and the first mounting groove 56 .

The door body 52 can be modified in various ways within the technical concept of opening and closing the service space opened on the side of the first case body 30 . The door body 52 according to an embodiment of the present invention has a curved cross-section and extends in the vertical direction. The door body 52 is detachably installed on the side surface of the first case part 20 positioned between the inlet part 32 and the discharge part 36 .

The gap maintaining protrusion 54 protrudes to the inside of the door body 52 and extends toward at least one of the filter part 70 and the filter case 80, and various modifications can be made within the technical idea. The gap maintaining protrusion 54 according to an embodiment of the present invention has a plate shape and protrudes inside the door body 52 to contact the side surfaces of the filter case 80 and the filter unit 70 or to be spaced apart by a set distance. .

A plurality of spacing protrusions are provided, and are in contact with the side surface of the filter case 80 and the side surface of the filter unit 70 or are spaced apart from each other at a set interval. Accordingly, the filter case 80 and the filter unit 70 are prevented from inclining in the direction toward the service door 50 and guides the filter case 80 and the filter unit 70 so that the filter case 80 and the filter unit 70 can be installed at a set position.

The first mounting groove portion 56 forms a groove on the inside of the door body 52 in the vertical direction. A first mounting groove 56 is formed in the vertical direction inside the door body 52 in contact with the edge of the fan module 140 . In addition, a second mounting groove portion 40 forming a groove in the vertical direction is also installed inside the first case body 30 facing the first mounting groove portion 56 .

The first mounting groove portion 56 and the second mounting groove portion 40 are respectively installed on both sides of the discharge portion 36 in the width direction (W). Accordingly, both edges of the fan module unit 140 in the width direction (W) are inserted into the first mounting groove portion 56 and the second mounting groove portion 40 to be stably mounted.

The second case unit 60 is connected to the lower portion of the first case unit 20, and inside the second case unit 60, various electronic components including the battery 220 are installed within the technical idea. Variation is possible.

A cross section of at least one of the first case part 20 and the second case part 60 may be circular or oval. Both the first case part 20 and the second case part 60 may have a cylindrical shape or an oval shape, and only the second case part 60 may have a cylindrical shape or an oval shape. Alternatively, only the first case portion 20 may be formed in a cylindrical or oval shape, if necessary.

When the second case part 60 is formed in a cylindrical or oval shape and extends in the vertical direction (H), it is convenient for the user to grip the outer periphery of the second case part 60 by hand, and the groove part of a generally circular cross section is The operation of mounting the second case unit 60 to the cup holder of the vehicle provided can be easily performed.

And when the first case part 20 is formed in a cylindrical or oval shape, air passing through the inside of the first case part 20 and moving in the horizontal direction comes into contact with the inside of the first case part 20 forming a curved shape, The generated friction is reduced, so that the air flow can be made more smoothly.

On the other hand, an air flow path is formed inside the first case part 20, and an air flow path is not formed inside the second case part 60, so the second case part 60 is held in a cup holder or a user's hand. Even when lost, the suction and discharge of air through the first case unit 20 can be smoothly performed, thereby improving the convenience of use.

In addition, the second case part 60 is mounted on a structure having a groove shape concave downward, such as a cup holder, and does not interfere with external structures through the inlet part 32 provided in the first case part 20 . Since air can be inhaled, air purification performance can be improved.

And, since the cross-section of the housing part 10 is circular or oval, the housing part 10 can be stably seated in the groove of the cup holder having a circular cross-section, and the separation distance between the housing part 10 and the cup holder. is reduced, and the possibility of vibration and noise generation can be reduced.

The first case part 20 and the second case part 60 may be assembled after being molded, respectively, or various modifications may be implemented, such as integrally molded.

12 is a front view illustrating a state in which the sterilization unit 210 is installed between the fan module unit 140 and the filter unit 70 according to an embodiment of the present invention, and FIGS. 13 and 14 are one embodiment of the present invention. It is a perspective view showing a state in which the filter case 80 according to the embodiment is positioned between the sterilization unit 210 and the filter unit 70 .

12 to 14 , the filter unit 70 is installed inside the first case unit 20 , and various modifications are carried out within the technical idea of purifying the air introduced into the inlet unit 32 . is possible The filter unit 70 according to an embodiment of the present invention may be formed in a rectangular parallelepiped shape. The filter unit 70 is installed inside the filter case 80 , and since the filter unit 70 is easily separated from the filter case 80 , the time required for filter replacement can be saved.

The filter part 70 according to an embodiment of the present invention is installed inside the housing part 10 facing the inlet part 32 . The filter part 70 is located inside the housing part 10 and is installed in a shape facing the inlet part 32 , and both sides of the filter part 70 in the width direction (W) are inside the housing part 10 . Since it is installed in a contact state, it is possible to improve the air purification performance by guiding the movement of the air introduced through the inlet part 32 toward the filter part 70 .

In addition, since the filter unit 70 has a rectangular parallelepiped shape extending in the vertical direction, the area of the filter unit 70 in contact with air is increased to improve air purification performance. On the other hand, since the filter unit 70 is mounted inside the filter case 80 to restrict movement, it is possible to prevent deterioration of air purification performance due to the movement of the filter unit 70 .

According to this embodiment, the inlet part 32, the filter part 70, the fan module part 140, and the exhaust part 36 are arranged in the first direction, and the air flow is also made in the same direction. can That is, the flow of air made by the operation of the fan module unit 140 is made in the same linear direction as the arrangement direction of the inlet part 32 , the filter part 70 , the fan module part 140 , and the exhaust part 36 . can

As such, when the flow of air in the linear direction is made, the resistance to the air flow is lowered by that amount, so that the flow of air can be made more smoothly. Accordingly, a sufficient amount of air can be sucked in by the fan module unit 140 and a sufficient amount of air corresponding thereto can be discharged, so that the air purification performance of the portable air purifier 1 can be improved by that much.

15 is a perspective view illustrating a filter case 80 according to an embodiment of the present invention.

13 to 15 , the filter case 80 and the filter unit 70 may be combined to form a module, and in addition to the above configuration, the sterilization unit 210 may be coupled to the filter case 80 . can That is, since the filter case 80, the filter unit 70, and the sterilization unit 210 can form a single module, the time and cost required for assembly and maintenance of the product can be reduced.

Also, in the filter case 80 , the filter unit 70 is detachably installed, and may be located between the filter unit 70 and the fan module unit 140 . In addition, the filter case 80 may guide the movement of air from the filter unit 70 to the fan module unit 140 . In addition, the filter case 80 can be implemented in various modifications within the technical idea of fixing the sterilization unit 210 installed at a position spaced apart from the filter unit 70 . The filter case 80 according to an embodiment of the present invention includes a case body part 90 , a flow path guide part 100 , a fixing support part 110 , a locking protrusion 120 , a first fixing protrusion 130 , and a first fixing protrusion ( 130 ). It may include at least one of the second fixing protrusion 132 and the first coupling protrusion 134 .

The case body part 90 is fixed to the inside of the housing part 10, and various modifications are possible within the technical idea that the filter part 70 is mounted on the inside. The case body part 90 forms an external skeleton of the filter case 80 .

In this embodiment, the case body portion 90 is illustrated as being formed in a rectangular frame-shaped frame in which both sides are open in the longitudinal direction (E). An insertion space for accommodating the filter unit 70 is formed inside the case body unit 90 . And the rear of the case body part 90 is opened, and through this, a passage for the filter part 70 to be inserted into the insertion space inside the case body part 90 is formed.

In the insertion space inside the case body part 90, the filter part 70 is mounted. On the inner surface of the case body part 90 , a seating groove or a locking protrusion 120 may be provided so that the filter part 70 can be securely mounted inside the case body part 90 .

Both sides of the case body part 90 in the longitudinal direction (E) are open, and the length of the side in the width direction (W) of the case body part 90 facing the service door 50 is in the longitudinal direction (E) length, It is shorter than the length in the longitudinal direction (E) of the side located on the other side in the width direction (W) of the case body portion (90). Therefore, when the filter unit 70 is replaced after the service door 50 is separated from the first case body 30 , the filter unit 70 can be easily pulled out through one side of the case body unit 90 . Therefore, the time required to replace the filter unit 70 can be saved.

The flow guide part 100 is installed on one side of the case body part 90, and various modifications are possible within the technical idea of forming a passage through which air moves from the filter part 70 toward the fan module part 140. do. The flow path guide part 100 according to an embodiment of the present invention is positioned between the filter part 70 and the fan module part 140 , and forms a plurality of through holes 102 .

When the direction in which the filter part 70 is positioned is the rear with respect to the filter case 80 and the direction in which the discharge part 36 is positioned is the front, the flow path guide part 100 is the filter part 70's. It is connected to the case body 90 located in the front. The through hole 102 is formed to be penetrated in the front-rear direction. The through hole 102 forms a passage through which the air passing through the filter unit 70 moves in the direction toward the fan module unit 140 . That is, a plurality of through-holes 102 are provided on the front surface of the filter case 80 , and each of the through-holes 102 is formed to penetrate through the front surface of the filter case 80 in the front-rear direction.

These through-holes 102 may be formed in a hexagonal shape. In addition, the plurality of through-holes 102 are arranged in a honeycomb shape, and accordingly, a honeycomb structure may be formed on the front surface of the filter case 80 .

By forming the honeycomb structure on the front surface of the filter case 80 as described above, goals such as securing rigidity and weight reduction of the filter case 80 can be achieved in addition to the purpose of securing a passage for air flow.

The fixed support unit 110 may be located in the center of the flow path guide unit 100 in the width direction (W). In addition, the fixed support 110, extending in the vertical direction, various modifications are possible within the technical idea having a protrusion for supporting the sterilizing unit 210 . The fixing support unit 110 according to an embodiment of the present invention may include a filter frame 112 and a fixing protrusion 116 .

The filter frame 112 forms an inner hole 114 extending in the vertical direction, and both sides in the width direction W are connected to the flow path guide 100 . Both sides of the filter frame 112 in the vertical direction (H) are connected to the case body portion 90 to form a rectangular frame-shaped frame extending in the vertical direction. The shape of the inner hole 114 corresponds to the shape of the sterilizing unit 210 . Accordingly, an operation in which the sterilization unit 210 is installed while being inserted into the inner hole 114 can be easily performed.

The fixing protrusion 116 is a plurality of protrusions protruding from the filter frame 112 toward the inner hole 114 . The fixing protrusion 116 can be modified in various ways within the technical concept of restricting the movement of the sterilizing unit 210 seated in the inner hole 114 . The fixing protrusion 116 according to an embodiment of the present invention is located between the sterilizing unit 210 seated in the inner hole 114 and the filter unit 70 , and the sterilizing unit 210 includes the filter unit 70 . to prevent tilting in the direction toward

The flow guide part 100 is installed on both sides of the fixed support part 110 , extends in the vertical direction, and has a plurality of through holes 102 , so that air passing through the filter case 80 can pass through the fan module part 140 . ) can be moved to

The locking jaw 120 is protruded to the inside of the case body portion 90, and various modifications are possible within the technical concept of restricting the movement of the filter portion 70. The locking protrusion 120 according to an embodiment of the present invention is a band-shaped protrusion protruding to the inside of the case body portion 90 , and the installation position is set in consideration of the irradiation angle of the sterilization unit 210 . Since the locking jaw 120 is installed in a band shape along the inner circumference of the case body part 90 , the filter unit 70 caught on the locking jaw 120 is installed to be spaced apart from the sterilizing part 210 by a set distance. Therefore, the sterilization effect of the filter unit 70 can be enhanced by irradiating all the sides of the filter unit 70 that the sterilizing light of the sterilizing unit 210 faces.

The first fixing protrusion 130 may protrude upward from the case body 90 and be fixed to the first boss 42 provided inside the housing 10 . In addition, the second fixing protrusion 132 may protrude downward of the case body 90 and be fixed to the second boss 44 provided inside the housing 10 . In a state where the first fixing protrusion 130 faces the first boss 42 , the movement of the first fixing protrusion 130 may be restricted by fastening the bolts. And in a state in which the second fixing protrusion 132 faces the second boss 44 , the movement of the second fixing projection 132 may be restricted by fastening the bolts.

Meanwhile, since the first coupling protrusion 134 protruding from the case body 90 toward the fan module 140 is inserted into the fan module 140 , the filter case 80 and the fan module 140 . can be easily combined, and if necessary, the filter case 80 and the fan module unit 140 may be formed as a single module. The first coupling protrusion 134 has a circular pipe shape and extends in the longitudinal direction E from the front of the case body 90 .

16 is a view showing a state in which the sterilization unit 210 is installed in the center of the fan module unit 140 according to an embodiment of the present invention, and FIG. 17 is a fan module unit 140 according to an embodiment of the present invention. ) is a perspective view showing a state in which the fan housing 150 is separated.

12, 16 and 17 , the fan module unit 140 is installed inside the housing unit 10 facing the discharge unit 36 , and is installed from the rear of the portable air purifier 1 . Various modifications are possible within the technical idea of sucking in air and discharging air to the front.

The fan module unit 140 may be accommodated in the accommodating space 22 of the housing unit 10 , and may be disposed in the first area (A). The fan module unit 140 includes two fan housings 150 and a fan member 160 as a module and may be disposed in an up-down direction.

The fan module unit 140 may be disposed between the discharge unit 36 and the filter case 80 , more specifically, between the discharge unit 36 and the sterilization unit 210 . Accordingly, the fan module unit 140 functions to blow air and to restrict the movement of the sterilization unit 210 together with the filter case 80 .

The width direction (W) length of the fan module unit 140 is formed to be longer than the width direction (W) length of the discharge unit. Accordingly, the fan module unit 140 is fixed to the inside of the first case unit 20 located on both sides of the discharge unit in the width direction (W), and the air discharged from the fan module fire toward the front is the fan module unit 140 and After moving along the inner curved surface of the first case unit 20 located between the discharge units, it is discharged to the front of the portable air purifier 1 through the discharge units. That is, the inner curved surface of the first case unit 20 located between the fan module unit 140 and the discharging unit serves as an air guide for guiding the movement of air toward the discharging unit 36, so the straight-line blowing function of air is improved. .

Since both front corners of the fan module unit 140 are inserted into the first mounting groove portion 56 and the second mounting groove portion 40 provided inside the housing portion 10 to restrict movement, the fan module portion 140 Since the shape of the first case part 20 does not have to be increased due to the fixing or fastening of the product, it is possible to reduce the size of the product. In addition, when the portable air purifier 1 according to the present invention is used in a vehicle, the size of the portable air purifier 1 can be implemented within a cup holder.

The fan member 160 according to the present invention is rotated by the operation of the motor. Only the rotation shaft of the motor rotating the fan member 160 may be connected to the fan member 160 , a rotor may be installed in the fan member 160 , and a stator may be installed in the fan housing 150 , the rotation of which is restricted. Since the magnetic field of the stator changes, the shaft rotated together with the rotor is connected to the fan member 160 so that the rotor and the fan member 160 can rotate around the stator. Since the configuration of the motor for rotating the fan member 160 is a known configuration, a detailed description thereof will be omitted.

The fan module unit 140 according to an embodiment of the present invention may include a fan housing 150 , a fan member 160 , and a fan base 200 .

18 is a perspective view illustrating a fan housing 150 according to an embodiment of the present invention, and FIG. 19 is a perspective view illustrating an inside of the fan housing 150 according to an embodiment of the present invention.

17 to 19, the fan housing 150 is fixed to the inside of the housing part 10, and various modifications are carried out within the technical idea to provide a space for the fan member 160 to rotate inside. is possible

Also, the fan housing 150 may surround the fan member 160 and be coupled to the fan base 200 . In addition, since the fan housing 150, the fan member 160, and the fan base 200 may be formed of a module, product assembly and maintenance work can be easily performed.

The fan housing 150 according to an embodiment of the present invention includes a support plate 151 , a connection support 152 , a wire guide 153 , a side support part 154 , a wire fixing protrusion 155 and a projecting boss 156 ). and at least one of the side wings 157 and the center guide 158 .

The support plate 151 is installed in a plate shape at a position facing the fan member 160 , and a hole is provided in the center of the support plate 151 . A motor may be installed in the center of the support plate 151 or a shaft connected to the motor may be installed in the first direction. This support plate 151 is located at the rear of the discharge part (36).

The connecting support 152 extends outwardly of the support plate 151 and is connected to the side support 154 . The connecting support 152 according to an embodiment of the present invention is provided in plurality and may be installed in a bar shape. The connection support 152 extending outward in the radial direction of the support plate 151 is connected to the side support 154 having a frame shape.

The wire guide 153 is installed in succession to the connection support 152 and supports the wires installed along the side of the connection support 152 . The wire guide 153 has a protrusion shape located at the rear side of the connection support 152 , and guides the electric wire of the motor installed on the support plate 151 to extend to the outside of the fan housing 150 . The wire guide 153 may be installed on the side of the connection support 152 to form a concave groove for arranging the wires. Therefore, the electric wire installed in the electric wire guide 153 is arranged in a concave groove located on the side of the connection support 152 , and the rear is supported by the electric wire guide 153 , so that damage to the electric wire can be prevented.

The side support part 154 may be subjected to various modifications within the technical idea of forming a frame of a circular or rectangular shape around the support plate 151 . The side support part 154 according to an embodiment of the present invention has a frame shape of a rectangular frame, and both sides in the first direction are opened. The outside of the side support part 154 is in contact with the inside of the first case part 20 , and the inside of the side support part 154 is connected to the connection support 152 .

The protruding boss 156 extends rearward toward the fan base 200 of the side support part 154, and various modifications within the technical idea having a groove for inserting the engaging protrusion 204 of the fan base 200 to be described later. implementation is possible. A plurality of projecting bosses 156 according to an embodiment of the present invention are installed along the circumference of the side support part 154 .

The wire fixing protrusion 155 protrudes from the side support part 154, and is located in the lateral direction of the wire located outside the connection support 152, so that various modifications can be made within the technical idea of restricting the separation of the wire. The wire fixing protrusion 155 according to an embodiment of the present invention is located in front of the electric wire guided to the edge of the fan housing 150 along the connection support 152 , and the electric wire protrudes toward the front of the fan housing 150 . It is possible to prevent damage to the wire by restraining the

The side wings 157 are connected to both sides in the width direction (W) of the side support part 154, and have a plate shape extending in the first direction. The side wings 157 extend in the vertical direction (H), and extend to the rear of the side support part 154 . In addition, the side wings 157 serve as an air guide in which the air moved by the fan member 160 moves in the direction toward the discharge unit 36, and prevents the high-speed rotating fan member 160 from colliding with other objects. serves to prevent

The center guide 158 has a circular pipe shape and is fixed to the support plate 151 . The hollow formed inside the center guide 158 extends in the first direction. Since the shaft connected to the fan member 160 is positioned inside the center guide 158, it serves to guide the shaft so that the rotation can be stably performed.

20 is a perspective view illustrating a shroud 190 of the fan member 160 according to an embodiment of the present invention, and FIG. 21 is a shaft coupling portion 172 of the fan member 160 according to an embodiment of the present invention. ) is a perspective view, FIG. 22 is a front view of the fan member 160 according to an embodiment of the present invention, and FIG. 23 is a hub 170 of the fan member 160 according to an embodiment of the present invention. It is a view, and FIG. 24 is a cross-sectional view of the fan member 160 according to an embodiment of the present invention.

20 to 24 , the fan member 160 is rotatably installed inside the fan housing 150 , and can move air in a direction toward the discharge unit 36 in various ways within the technical idea. Variation is possible.

As the fan member 160, a fan may be used, but this is only an embodiment of the present invention, and other types of fans may also be used as the fan member 160 according to the present invention. The fan member 160 according to an embodiment of the present invention may include at least one of a hub 170 , a fan blade 180 , and a shroud 190 .

The hub 170 is located in the center of the fan housing 150, and various modifications can be made within the technical idea of rotating by receiving external power.

The hub 170 is disposed at the radial center of the fan member 160 , and may rotate together with a rotor constituting the motor and a shaft that is an output shaft of the motor. The hub 170 according to an embodiment of the present invention may include at least one of a hub plate part 171 , a shaft coupling part 172 , an inner protrusion part 175 , and a skirt part 177 .

The hub plate portion 171 may be formed in a disk shape parallel to the support plate 151 . A shaft coupling part 172 may be provided in the hub plate part 171 . The shaft coupling portion 172 may be disposed at the radial center of the hub plate portion 171 . The shaft coupling portion 172 may be formed to protrude from the hub plate portion 171 in the first direction.

The shaft coupling part 172 may be coupled to an end of a shaft that transmits rotational power. For example, the coupling between the shaft coupling part 172 and the shaft may be made in a form in which the shaft is fitted and fixed to the shaft coupling part 172 .

The first reinforcing protrusions 173 are installed at set intervals along the outer circumference of the shaft coupling portion 172 . The first reinforcing protrusion 173 is radially installed around the shaft coupling part 172 , and forms a belt-shaped protrusion on the outside of the shaft coupling part 172 . Therefore, the stress concentrated on the shaft coupling portion 172 is distributed through the first reinforcing protrusion 173 , so that the structural rigidity of the shaft coupling portion 172 can be reinforced.

The inner protrusion 175 may protrude from the hub plate 171 in a direction in which the support plate 151 is installed. The inner protrusion 175 according to an embodiment of the present invention is installed in a circular arc direction along the outer edge of the hub plate portion 171 . The inner protrusion 175 has a pipe shape extending in the first direction.

And the second reinforcing protrusions 176 are installed at set intervals along the inner circumference of the inner protrusion 175 . The second reinforcing protrusion 176 is installed in the first direction along the inner surface of the inner protrusion 175 , and the second reinforcing protrusion 176 forms a band-shaped protrusion extending toward the shaft coupling unit 172 . do. Therefore, since the stress concentrated on the inner protrusion 175 is distributed through the second reinforcing protrusion 176 , the structural rigidity of the inner protrusion 175 can be reinforced. If necessary, the rotor of the motor unit may be fixed to the inside of the inner protrusion 175 .

The skirt part 177 may protrude from the edge of the hub plate part 171 toward the support plate 151 . The skirt portion 177 may form an inclined surface that is inclined outward in the radial direction as it goes away from the hub plate portion 171 in the first direction. The skirt portion 177 is located on the outside of the inner protrusion 175 , and the inner diameter of the skirt portion 177 gradually increases toward the front of the hub plate portion 171 .

For example, the shape in which the hub plate part 171 and the skirt part 177 are connected may be a truncated cone shape with a hollow formed therein and one side open. The skirt portion 177 may have a funnel shape in which the front is opened and the rear is blocked by the hub plate portion 171 .

The shroud 190 is connected to the end of the fan blade 180 and is installed in an annular shape, and various modifications are possible within the technical idea that can be spaced apart from the fan base 200 .

The shroud 190 is installed along the outer circumference of the skirt part 177 , and the shroud 190 and the skirt part 177 are connected by a fan blade 180 . In addition, the outer diameter of the hub 170 and the inner diameter of the shroud 190 may be gradually decreased in a direction from the discharge portion 36 toward the inlet portion 32 .

The shroud 190 is spaced apart from the hub 170 at a predetermined distance along the radial direction of the fan module unit 140 , and may be disposed radially outside the hub 170 . In addition, the shroud 190 may be spaced apart from the hub 170 by an interval corresponding to the radial length of the fan blade 180 . And each fan blade 180 may connect between the skirt portion 177 and the shroud 190 provided in the hub 170 .

The shroud 190 may form an inclined surface substantially parallel to the skirt portion 177 . In this embodiment, the arrangement of the skirt part 177 and the shroud 190 is made in a form in which the distance between the skirt part 177 and the shroud 190 is gradually widened toward the front of the shroud 190. is exemplified In the present invention, the front is a direction from the center of the housing part 10 toward the discharge part 36 , and the rear is a direction from the center of the housing part 10 toward the inlet part 32 .

The inlet protrusion 191 provided at the rear of the shroud 190 is a ring-shaped protrusion, and extends in the first direction from the funnel-shaped shroud 190 . Since the inlet protrusion 191 is located inside the bell mouth 202 to be described later, it is possible to prevent rotational movement of the air flowing into the inlet provided in the shroud 190 along the outside of the shroud 190 .

The fan blades 180 are provided in plurality, and may be spaced apart from each other at equal intervals along the outer circumferential surface of the hub 170 . The fan blade 180 protrudes to the outside of the hub 170 with the hub 170 as the center, and the fan blade 180 extends spirally. In addition, the plurality of fan blades 180 may be disposed to be spaced apart from each other by a predetermined distance along the circumferential direction of the hub 170 .

The fan blade 180 according to an embodiment of the present invention may protrude to the outside of the skirt part 177 along the centrifugal direction extending helically from the center of the shaft coupling part 172 . In addition, when the direction from the outside of the shaft coupling part 172 toward the shaft coupling part 172 is referred to as a radial direction, the radial inner side of the fan blade 180 is connected to the skirt part 177, and the fan blade 180 is connected to the skirt part 177. The radially outer side of may be connected to a shroud 190 to be described later.

The skirt part 177 is a part directly connected to the fan blade 180 in the configuration of the hub 170 , and is also in direct contact with the air passing through the fan blade 180 . The skirt portion 177 may be deeply related to the flow path of the air passing through the fan module 140 .

Each fan blade 180 connecting between the shroud 190 and the skirt portion 177 has a first end 181 and a second end 182 and a first edge 183 and a second edge 184 . ) may be included.

The first end 181 may be disposed at the front end of the fan blade 180 in the rotational direction, and may be formed in a linear shape extending in the radial direction. The rotation direction is defined as a direction in which the fan member 160 rotates.

The second end 182 may be disposed at the rear end of the fan blade 180 in the rotational direction, and may be formed radially around the shaft coupling portion 172 .

The first edge 183 may connect one end of the first end 181 and one end of the second end 182 . The first edge 183 may be connected to the inner circumferential surface of the shroud 190 .

The second edge 184 may connect the other end of the first end 181 and the other end of the second end 182 . The second edge 184 may be connected to the outer peripheral surface of the hub 170 .

That is, one end of the first end 181 and one end of the second end 182 may be connected to the inner peripheral surface of the shroud 190 . In addition, the other end of the first end 181 and the other end of the second end 182 may be connected to the outer peripheral surface of the skirt portion 177 .

One end of the first end 181 may be disposed closer to the radial center of the hub plate 171 than one end of the second end 182 . The other end of the second end 182 may be disposed closer to the radial center of the hub plate 171 than the other end of the first end 181 . In this case, one end and the other end of the first end 181 are disposed forward in the rotational direction than one and the other end of the second end 182 , and the skirt portion 177 has a shape whose radius becomes narrower toward the front in the rotational direction. because it is formed.

According to this embodiment, the fan blade 180 is connected to the skirt portion 177 of the hub 170 . In order to guide the flow of air flowing into the fan module unit 140 in an upwardly inclined direction, the skirt part 177 forms an inclined surface in an upwardly inclined direction.

25 is a perspective view illustrating a state in which the fan base 200 is separated from the filter case 80 according to an embodiment of the present invention, and FIG. 26 shows the fan base 200 according to an embodiment of the present invention. It is a perspective view, and FIG. 27 is a view showing a state in which the sterilization unit 210 according to an embodiment of the present invention is installed in a spaced apart state from the filter unit 70 .

25 to 27 , the fan base 200 is coupled to the rear of the fan housing 150 , and is a technical idea for guiding that air passing through the filter unit 70 flows into the fan member 160 . Various modifications are possible within.

The fan base 200 may be disposed between the filter unit 70 and the fan member 160 . The front of the fan base 200 is coupled to the fan housing 150 , and the rear of the fan base 200 is coupled to the filter case 80 . In addition, the fan base 200 may support the front of the sterilizing unit 210 , and the filter case 80 may support the rear of the sterilizing unit 210 . In addition, the fan base 200 is provided with a passage for air sucked into the fan member 160 , and the air passage may be formed to be the same as the number of the fan member 160 .

The fan base 200 is generally plate-shaped, and the external shape may be formed in a shape corresponding to the shape of the fan housing 150 . For example, when the fan housing 150 has a rectangular shape and is installed consecutively in the vertical direction, the fan base 200 coupled to the fan housing 150 may also be formed in a rectangular plate shape extending in the vertical direction. The fan base 200 according to an embodiment of the present invention may include at least one of a base plate 201 , a bell mouth 202 , a coupling protrusion 204 , and a protruding rib 203 .

The base plate 201 may be disposed between the filter case 80 and the fan member 160 . The base plate 201 has a rectangular plate shape extending in the vertical direction (H), and a hollow for air movement is provided in the center. The hollow is provided in plurality, and is arranged in the vertical direction (H).

The bell mouth 202 is installed in an annular shape on the inside of the base plate 201 facing the hollow. The bell mouth 202 has a concave longitudinal cross-section surrounding the end of the inlet protrusion 191 of the shroud 190 and extends in the circumferential direction.

The bell mouth 202 may be formed in a shape surrounding the outer peripheral surface of the hollow formed in the center of the base plate 201 . The bell mouth 202 is formed to be convex toward the rear, and may form a groove having a concave shape toward the front.

Bellmouth 202 may be inserted, at least in part, radially inward of shroud 190 . The bell mouse 202 may contribute to improving suction and discharge performance of the fan module 140 by guiding the suction flow at the inlet of the fan module 140 . In addition, since it is made of a convex curved surface at the rear of the bell mouth 202, it is possible to reduce the increase in frictional resistance of the air moving forward through the bell mouth 202, whereby air blowing can be made more smoothly.

In addition, the coupling protrusion 204 protrudes forward from the base plate 201 in the first direction, and is fitted into the groove of the protruding boss 156 provided in the fan housing 150 to be fitted to the fan housing 150 . The fan base 200 is fixed. By the coupling formed between the coupling protrusion 204 and the protruding boss 156 , the fan base 200 and the fan housing 150 may be coupled at a plurality of points. When the coupling between the fan base 200 and the pill housing is made in this way, the fan member 160 may be rotatably installed between the fan base 200 and the fan housing 150 .

The protruding rib 203 is installed in an annular shape surrounding the outer circumference of the bell mouth 202 , and may be installed parallel to the outside of the fan member 160 . In addition, the protruding rib 203 protrudes from the base plate 201 and may be disposed on the radially outer side of the bell mouth 202 .

In addition, the protruding ribs 203 may be integrally formed with the base plate 201 . More specifically, the base plate 201, the bell mouth 202, and the protruding rib 203 may be integrally formed.

In addition, the protruding ribs 203 may be installed to be inclined at the same angle as the outer surface of the shroud 190 , and a distance between the protruding ribs 203 and the shroud 190 may be maintained constant. These protruding ribs 203 may protrude in the form of forming an inclined surface. The inclined surface of the protruding rib 203 is spaced apart from the shroud 190 by a set interval and may be formed as an inclined surface parallel to the inclined surface of the shroud 190 .

In addition, the inclined surface of the protruding rib 203 may have the same inclination angle as the inclined surface of the inner guide provided in the fan housing 150 . Therefore, a part of the air moved forward through the space between the shroud 190 and the skirt part 177 goes to the entrance of the fan member 160 through the space between the shroud 190 and the protruding rib 203 . It is possible to prevent the phenomenon of moving cyclones. Therefore, the flow loss due to the cyclonic phenomenon is suppressed, and the rigidity of the fan base 200 is increased, so that the effect of suppressing the deformation of the fan base 200 due to an external force can be provided.

On the other hand, a ring-shaped coupling guide protrusion 205 may be installed at the rear of the base plate 201 facing the protruding rib 203 . The first coupling protrusion 134 protruding forward of the filter case 80 is moved to the inside of the coupling guide protrusion 205 and then inserted into the rear of the coupling protrusion 204 and fixed in a fitting manner.

If the first coupling protrusion 134 of the filter case 80 is moved and coupled to the inside of the coupling protrusion 204 of the fan base 200 without the coupling guide protrusion 205, the first coupling protrusion 134 Since the area in contact with the fan base 200 is reduced, the coupling force is lowered, and thus the filter case 80 and the fan base 200 may be separated.

While solving this problem, in order to suppress an increase in the length of the fan base 200 in the longitudinal direction (E) to enable a compact design, a coupling guide protrusion 205 is additionally installed. When the first coupling protrusion 134 is coupled to the fan base 200 , since the inner side of the coupling guide protrusion 205 and the coupling protrusion 204 is in contact with the outer surface of the first coupling protrusion 134 , the first coupling protrusion 134 . The area in which the protrusion 134 comes into contact with the fan base 200 is increased, thereby increasing the coupling force.

28 is a view showing a state in which the sterilizing light is irradiated toward the filter 70 from the sterilizing unit 210 according to an embodiment of the present invention.

As shown in FIG. 28 , the sterilization unit 210 is mounted on the filter case 80 , and various modifications are possible within the technical idea of irradiating the sterilization light toward the filter unit 70 .

The sterilizing unit 210 according to an embodiment of the present invention is inserted into the filter frame 112 , and is caught by the fixing protrusion 116 so that movement may be restricted. The installation position of the sterilization unit 210 may be variously modified within the technical idea for preventing air pollution by sterilizing the filter unit 70 while minimizing an increase in the flow resistance of the air.

As shown in FIG. 15 , the sterilization unit 210 is installed in the center of the width direction W of the filter case 80 and may extend in the vertical direction.

In addition, as shown in FIG. 16 , the sterilization unit 210 may be located in the center of the fan module unit 140 in the width direction (W). That is, the front of the sterilization unit 210 is located in the center of the width direction (W) of the fan module unit 140, and the rear of the sterilization unit 210 is located in the center of the width direction (W) of the filter case 80, It is a position selected as an optimal position in consideration of the irradiation distance and irradiation angle of the sterilization light while minimizing friction with the air moving from the filter case 80 to the fan module unit 140 .

In one embodiment of the present invention, the two fan members 160 may be installed along the sterilization unit 210 in the vertical direction. The upper end of the sterilization unit 210 is installed at a lower position than the upper end of the hub 170 of the fan member 160 located above the sterilization unit 210 . Therefore, since the sterilization unit 210 does not interfere with the air intake passage located above the top of the hub 170 of the fan member 160 located above the sterilization unit 210, the increase in frictional resistance of the air passage can be minimized. .

And the lower end of the sterilization unit 210 is installed at a higher position than the lower end of the hub 170 of the fan member 160 located below the sterilization unit 210 . Therefore, since the sterilization unit 210 does not interfere with the air intake passage located below the lower end of the hub 170 of the fan member 160 located below the sterilization unit 210, the increase in frictional resistance of the air passage can be minimized. .

In a state in which the plurality of fan members 160 are installed consecutively in the vertical direction, the upper and lower ends of the sterilizing unit 210 extending in the vertical direction do not protrude to the outside of the hub 170 of the fan member 160, so the sterilizing unit ( It is possible to minimize the obstruction of the air passage 210 sucked into the fan member 160 . Accordingly, it is possible to improve the air purification performance by minimizing an increase in the flow resistance of the air sucked into the fan member 160 .

The sterilization unit 210 according to an embodiment of the present invention may include a printed circuit board 211 and a sterilization light source 212 . The printed circuit board 211 is a rectangular plate extending in the vertical direction, the front side is supported by the bell mouse 202 of the fan base 200, and the rear side by the fixing protrusion 116 of the filter case 80. this is supported

The sterilization light source 212 may be a UVC LED, and in addition to this, various types of sterilization devices may be used within the technical idea for sterilizing the bacteria in the filter unit 70 . The sterilization light source 212 is installed on both sides in the vertical direction of the printed circuit board 211 and irradiates the sterilization light toward the filter unit 70 .

In consideration of the vertical direction (H) length of the filter unit 70 according to the present invention, the installation position and number of the sterilization light sources 212 can be changed. The irradiation angle of the sterilizing light irradiated from the sterilizing light source 212 according to the present invention is 140 ° to 160 °. Therefore, the sterilization light irradiated from the sterilization light source 212 installed on the upper side and the lower side of the printed circuit board 211, respectively, reaches the filter unit 70, and since a part of the sterilization light overlaps, the side surface located in front of the filter unit 70 All of these can be sterilized.

12 and 27, the fan housing 150 and the fan member 160 according to an embodiment of the present invention are installed consecutively in the vertical direction of the fan base 200 in two, the fan member 160 ) of the central axis of rotation may cross the sterilization unit 210 at right angles.

An imaginary line extending in the first direction passing through the center of rotation of the fan member 160 located at the upper side is set as the first horizontal center line P1, passing through the center of rotation of the fan member 160 located at the lower side, and passing through the first An imaginary line extending in the direction is set as the second horizontal center line P2.

When an imaginary line intersecting the first horizontal center line P1 and the second horizontal center line P2 in the vertical direction is referred to as a vertical imaginary line (V), the sterilization unit 210 is installed in parallel with the vertical imaginary line (V). . If the sterilization unit 210 is installed inclined with respect to the vertical virtual line (V), the contact area with the air that passes through the filter unit 70 and moves to the fan module unit 140 increases, so frictional resistance generated when the air moves As this increases, there is a problem in that the air cleaning performance is deteriorated.

However, when the sterilization unit 210 is installed parallel to the vertical virtual line (V), the contact area with the air passing through the filter unit 70 and moving to the fan module unit 140 is minimized, so that friction generated during air movement is minimized. The increase in resistance can be minimized, and the air cleaning performance can be prevented from being deteriorated.

29 is a view showing a state in which the locking protrusion 117 is installed on the rear surface of the sterilization unit 210 according to an embodiment of the present invention. As shown in FIG. 29 , a separate locking protrusion 117 may be additionally installed in front of the sterilization unit 210 . In a state in which the sterilization unit 210 is inserted into the filter frame 112 provided in the filter case 80 , the fixing protrusion 116 and the locking protrusion 117 protrude from the filter frame 112 .

The fixing protrusion 116 is located at the rear of the sterilizing unit 210 , and the locking protrusion 117 is located at the front of the sterilizing unit 210 . The fixing protrusion 116 is located on the upper and lower sides of the sterilization unit 210, and the locking protrusion 117 is located at the center of the sterilization unit 210, and is made of a plastic material so that it can be deformed to some extent, so sterilization When the part 210 is mounted, the shapes of the fixing protrusion 116 and the locking protrusion 117 are deformed. And after the installation of the sterilization unit 210 is completed, the shape of the fixing protrusion 116 and the locking protrusion 117 is restored to its original state.

[Air flow aspect of portable air purifier]

11 and 28, the air introduced into the inlet 32 is guided to move in the horizontal direction, and passes through the filter unit 70, the filter case 80, and the fan module unit 140 in sequence. Since it is discharged to the outside of the housing unit 10 through the discharge unit 36 after being discharged, the air movement path can be shortened to improve the air purification performance.

In addition, since the sterilization unit 210 is fixed in a shape inserted inside the filter case 80 , the heat dissipation of the sterilization unit 210 is easy by the air moving to the fan module unit 140 through the filter case 80 . This can be done, whereby the durability of the sterilization unit 210 can be improved.

And since the area through which air flows into the housing 10 through the inlet 32 is larger than the area of the filter unit 70 facing the inlet 32 , the low speed of the fan module 140 . Since a large amount of air can move to the fan module unit 140 through the filter unit 70 even during operation, air cleaning efficiency can be improved.

And since the filter case 80 is installed around the outer edge of the filter unit 70, the air passing through the filter unit 70 does not move in the first direction toward the inlet unit 32, and the filter unit 70 By blocking the movement in the vertical direction (H) of the filter unit 70 through the edge of the air can secure the straight mobility.

And the sterilization unit 210 is installed at the center of the width direction (W) of the filter case 80 and the fan module unit 140 , and the upper and lower ends of the sterilization unit 210 are located above and below the sterilization unit 210 . Since it does not protrude to the outside of the installed hub 170 , an increase in flow resistance due to the sterilization unit 210 is minimized, and air flow loss is minimized, and effective air intake, discharge, and filtering can be achieved.

Meanwhile, air passes through the filter unit 70, and physical particles such as dust/fine dust/ultra-fine dust contained in the air, chemical substances such as odor particles/toxic gas, and microorganisms such as bacteria/viruses are filtered out. can get

In addition, the center of the width direction (W) of the inlet part 32, the center of the width direction (W) of the filter part 70, the center of the width direction (W) of the filter case 80, and the center of the width direction (W) of the sterilization unit 210 ) Since the center and the center of the width direction (W) of the fan module unit 140 and the center of the width direction (W) of the discharge unit 36 are arranged in a straight line along the second horizontal center line (P2), the flow loss is minimized As a result, effective air intake and filtering can be achieved.

Air that has passed through the filter unit 70 , that is, purified air may be introduced into the fan module unit 140 . The flow of air may be guided by the bell mouth 202 , thereby effectively guiding the smooth inflow of air into the fan module unit 140 .

The air introduced into the fan module unit 140 is discharged to the front of the fan module unit 140 . The air discharged to the front of the fan module unit 140 may be discharged in the direction of a dead flow. Here, the direction of the oblique flow may be defined as a front diagonal direction.

The air sucked into the rear center of the fan module unit 140 moves forward through a discharge port provided in an annular shape along the inner edge of the fan module unit 140, and moves forward through the space formed between the supports of the rotation support unit. do. That is, since the fan module unit 140 is applied with a flow fan, the air introduced to the rear of the fan module unit 140 is discharged in a forward inclined direction to match the air movement path and flow path direction of the rotation support unit, thereby reducing flow path loss. can

And the air discharged to the front of the fan module unit 140 is located between both edges of the fan module unit 140 in the width direction (W) and the width direction (W) of both sides of the inlet unit 32 in the first case unit ( It is moved along the inner curved surface of 20) and a straight movement toward the first direction is guided, and is discharged to the front of the housing 10 through the discharge unit. The inner side of the first case unit 20 has a curved shape, and the inside of the first case unit 20 in contact with the fan module unit 140 has an inner diameter in the width direction (W) gradually toward the inlet unit 32 . Since this is reduced, it serves as an air guide so that the air exiting the fan module unit 140 can move toward the inlet unit 32 . At this time, since the inner side of the first case unit 20 forms a concave curved surface, friction in contact with the air moving from the fan module unit 140 toward the inlet unit 32 is minimized to improve the air flow performance, and the front It is possible to maintain the straightness of the air toward

On the other hand, since the inlet grill 33 provided in the inlet 32 and the outlet grill 37 provided in the outlet 36 extend along the first direction, the air passing between the inlet grill 33 and Since the air discharged through the discharge grill 37 can be moved in a straight direction along the first direction, the movement path of the air passing through the housing 10 is shortened, thereby improving the blowing ability.

[Setting the placement of each part and the spacing between parts]

As shown in FIG. 11 , the first horizontal center line passing through the center of the housing part 10 in the transverse direction is located in the middle between the inlet part 32 and the outlet part 36 . The first horizontal center line is an imaginary line passing through a portion having the largest inner diameter among the cross sections of the first case unit 20 . And the second horizontal center line is perpendicular to the first horizontal center line and extends in the first direction.

The portable air purifier 1 has a substantially cylindrical shape, extends in the vertical direction, and has a technical feature that devices for air purification and sterilization are installed within a set size in order to be mounted on a cup holder of a vehicle. Therefore, the arrangement of each part is one of the important technical ideas of the present invention.

Since the arrangement of the fan module unit 140 and the filter unit 70 is an important technique in the portable air purifier 1, the filter unit 70 is disposed on the inlet part 32 based on the first horizontal center line and the exhaust part ( 36), the fan module unit 140 is disposed. Therefore, since the air from which foreign substances are removed while passing through the filter unit 70 passes through the fan module unit 140 , the phenomenon of foreign substances such as dust being caught in the fan module unit 140 is reduced, and the cost of maintenance and time can be saved.

And the sterilization unit 210 for sterilizing the filter unit 70 with the light for sterilization is spaced apart from the filter unit 70 by a set distance depending on the irradiation angle of the light for sterilization and the number and location of the sterilization light source 212 installed. should be Therefore, the sterilization unit 210 is located in the direction toward the fan module unit 140 with respect to the first horizontal center line. When the installation space of the fan module unit 140 is reduced, it is difficult to reduce the installation space of the fan module unit 140 because the ventilation function is significantly reduced. may be

Therefore, if the distance between the first horizontal center line P1 and the filter unit 70 is D1 and the distance between the first horizontal center line P1 and the fan module unit 140 is D2, D1 and D2 have different values. . And preferably, D1 may have a value greater than D2.

For example, if D1 and D2 are the same or D2 is greater than D1, the installation space of the fan module unit 140 is reduced compared to the prior art, so that the blowing function is remarkably deteriorated, thereby reducing the air cleaning efficiency.

On the other hand, when D1 has a larger value than D2, it is possible to secure an installation space for the fan module unit 140, thereby preventing a decrease in the blowing function, and thereby, while the sterilization operation of the filter unit 70 is performed. It also has an effect of preventing a decrease in air cleaning efficiency. That is, since the blowing ability of the fan module unit 140 is an important factor in the air purification function, the fan module unit 140 is installed closer to the first horizontal center line P1 than the filter unit 70 . As a result, the volume of the fan module unit 140 is larger than the volume of the filter unit 70 .

In addition, the second horizontal center line that intersects at right angles with the first horizontal center line at the center of the housing unit 10 and extends in the lateral direction is the inlet 32 , the filter unit 70 , the sterilization unit 210 , and the fan module. It may pass through the center of the width direction (W) of the part 140 and the discharge part 36 . Accordingly, the straightness of the air passing through the inlet part 32, the filter part 70, the sterilization part 210, the fan module part 140, and the exhaust part 36 is further improved and the blowing function is improved, so that the air is cleaned. Efficiency is also improved.

On the other hand, since the sterilization unit 210 is fixed while being inserted into the filter case 80, the first direction length of the fan module unit 140 or the filter unit 70 due to the installation of the sterilization unit 210 is reduced. can be minimized, it is also possible to prevent the deterioration of the blowing function compared to the prior art.

In addition, the rear of the sterilization unit 210 is supported by the fixing protrusion 116 , and the front of the sterilization unit 210 is supported by the bell mouse 202 of the fan base 200 , or together with the bell mouse 202 . It is supported by the locking protrusion 117 . Therefore, a separate bracket for fixing the sterilization unit 210 is not required, and since the length of other parts in the first direction is not reduced by the separately provided bracket, it is possible to provide an excellent air purification function and to reduce the number of parts. Production and maintenance costs can be reduced accordingly.

As described above, the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings disclosed in this specification, and various methods can be obtained by those skilled in the art within the scope of the technical spirit of the present invention. It is obvious that variations can be made. In addition, although the effects according to the configuration of the present invention have not been explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the configuration should also be recognized.

1: Portable air purifier
10: housing unit
20: first case portion 22: accommodation space
30: first case body 32: inlet part 33: inlet grill 34: inlet hole 36: exhaust part 37: exhaust grill 38: exhaust hole 40: second mounting groove 42: first boss 44: second boss
50: service door 52: door body 54: gap maintaining projection 56: first mounting groove
60: second case part
70: filter unit
80: filter case 90: case body part 100: flow guide part 102: through hole 110: fixed support part 112: filter frame 114: inner hole 116: fixing protrusion 117: locking protrusion
120: locking jaw 130: first fixing projection 132: second fixing projection 134: first coupling projection
140: fan module unit
150: fan housing 151: support plate 152: connection support 153: wire guide 154: side support part 155: electric wire fixing projection 156: protruding boss 157: side wings 158: center guide
160: fan member
170: hub 171: hub plate portion 172: shaft coupling portion 173: first reinforcing protrusion 175: inner protrusion 176: second reinforcing protrusion 177: skirt portion
180: fan blade 181: first end 182: second end 183: first edge 184: second edge
190: shroud 191: entrance projection
200: fan base 201: base plate 202: bell mouse 203: protruding rib 204: engaging projection 205: engaging guide projection
210: sterilization unit 211: printed circuit board 212: sterilization light source
220: battery
A: first area B: second area
C: the center of the housing part
E: longitudinal direction
H: up and down
W: width direction
P1: first horizontal center line
P2: 2nd horizontal center line
D1: Distance between the first horizontal center line and the filter unit
D2: Distance between the first horizontal center line and the fan module unit
S1: first central axis of rotation
S2: second central axis of rotation
V: vertical virtual line

Claims (36)

a housing portion having an accommodation space formed therein and having an inlet for sucking air and an outlet for discharging air;
a filter unit installed inside the housing unit facing the inlet unit;
a fan module unit installed inside the housing unit facing the discharge unit;
a filter case in which the filter unit is detachably installed, located between the filter unit and the fan module unit, and guides air movement from the filter unit to the fan module unit; and
a sterilization unit mounted on the filter case and irradiating light for sterilization toward the filter unit;
The air introduced into the inlet part is guided in a horizontal direction, passes through the filter part, the filter case, and the fan module part in turn, and then is discharged to the outside of the housing part through the discharge part.
According to claim 1,
The housing part includes a first case in which the filter part, the sterilization part, and the fan module part are installed inside, the inlet part is provided on one side, and the exhaust part for discharging air is provided on the other side facing the inlet part. wealth; and
A portable air purifier comprising a; a second case part connected to the lower part of the first case part.
3. The method of claim 2,
An air flow path is formed inside the first case part, and an air flow path is not formed inside the second case part.
3. The method of claim 2,
A portable air purifier having a built-in battery inside the second case part.
3. The method of claim 2,
A portable air purifier having a cross section of at least one of the first case part and the second case part having a circular or oval shape.
3. The method of claim 2,
The first case part and the second case part are each molded and then assembled or integrally molded for a portable air purifier.
3. The method of claim 2,
The first case portion may include: a first case body having the inlet portion and the exhaust portion, and having a service space on a side surface thereof; and
A portable air purifier comprising a; a service door that is detachably installed on the first case body and opens and closes the service space.
8. The method of claim 7,
The service door may include: a door body detachably installed on the first case body;
a gap maintaining protrusion protruding inside the door body and extending toward at least one of the filter unit and the filter case; and
A portable air purifier comprising a; first mounting groove for forming a groove in the vertical direction on the inside of the door body.
9. The method of claim 8,
The first case body further includes; a second mounting groove portion for forming a groove in the vertical direction on the inner side of the first case body facing the first mounting groove portion;
One side and the other side of the fan module in the width direction are inserted into the first and second mounting grooves to restrict movement.
According to claim 1,
A plurality of inlet grills extending in the vertical direction of the inlet are installed on one side of the housing to form an inlet hole,
In the discharge part, a plurality of discharge grills extending in the vertical direction are installed on the other side of the housing to form a discharge hole,
The inlet hole and the discharge hole are horizontally facing each other.
According to claim 1,
The filter part is located inside the housing part and faces the inlet part,
A portable air purifier in which both sides of the filter part in the width direction are installed in contact with the inside of the housing part.
12. The method of claim 11,
The filter unit has a rectangular parallelepiped shape extending in the vertical direction, and is mounted inside the filter case to restrict movement.
According to claim 1,
The filter case may include a case body fixed to the inside of the housing part, the filter part being mounted on the inside, and both sides of the filter case being opened in the longitudinal direction;
a flow path guide part installed on one side of the case body part and forming a passage through which air moves from the filter part toward the fan module part; and
A portable air purifier comprising a; located in the center of the flow path guide, extending in the vertical direction, and having a protrusion for supporting the sterilization unit.
14. The method of claim 13,
The filter case further includes a locking jaw protruding inside the case body to restrict movement of the filter unit;
A portable air purifier that is installed to be spaced apart from the sterilizing unit by a set distance from the filter unit caught on the clasp.
14. The method of claim 13,
The filter case may include: a first fixing protrusion that protrudes upward from the case body and is fixed to a first boss provided inside the housing; and
The portable air purifier further comprising: a second fixing protrusion that protrudes downward from the case body and is fixed to a second boss provided inside the housing.
14. The method of claim 13,
The filter case further includes a first coupling protrusion that protrudes in a direction toward the fan module and is inserted into the fan module.
14. The method of claim 13,
The flow guide part is installed on both sides of the fixed support part, extends in an up-down direction, and has a plurality of through-holes.
14. The method of claim 13,
The fixed support unit may include: a filter frame having an inner hole extending in a vertical direction and connected to the flow path guide; and
Includes; a plurality of fixing projections protruding from the filter frame toward the inner hole;
The sterilizing unit is inserted into the filter frame, and the movement is restricted by being caught by the fixing protrusion.
According to claim 1,
The sterilizing unit is installed in the center of the width direction of the filter case and extends in the vertical direction.
20. The method of claim 19,
The sterilizing unit may include: a printed circuit board extending in a vertical direction; and
A portable air purifier comprising a; a sterilization light source installed on both sides of the printed circuit board in the vertical direction and irradiating a light for sterilization toward the filter unit.
20. The method of claim 19,
The sterilization unit is located at the center of the fan module unit in the width direction, and two fan members are installed along the sterilization unit in the vertical direction;
The upper end of the sterilization unit is installed at a position lower than the upper end of the hub of the fan member located above the sterilization unit,
The lower end of the sterilizing unit is installed at a higher position than the lower end of the hub of the fan member located below the sterilizing unit.
According to claim 1,
The fan module unit may include: a fan housing fixed to the inside of the housing unit;
a fan member rotatably installed inside the fan housing and moving air in a direction toward the exhaust unit; and
and a fan base coupled to the fan housing and guiding the air passing through the filter unit into the fan member.
23. The method of claim 22,
The fan housing surrounds the fan member and is coupled to the fan base, and the fan housing, the fan member, and the fan base are formed of a module.
23. The method of claim 22,
Two of the fan housing and the fan member are installed in the vertical direction of the fan base, and the central axis of rotation of the fan member intersects the sterilizing unit at right angles to the portable air purifier.
23. The method of claim 22,
The fan housing may include a support plate installed in a plate shape at a position facing the fan member;
a connecting support extending to the outside of the support plate;
a side support part connected to the connection support and forming a frame of a circular or rectangular shape around the support plate; and
and a protruding boss that protrudes from the side support part in a direction toward the fan base and is coupled to the fan base.
26. The method of claim 25,
The fan housing may include: a wire guide installed consecutively on the connection support and supporting the wires installed along the side surface of the connection support; and
A portable air purifier comprising a; wire fixing protrusion protruding from the side support part and located in the lateral direction of the wire located outside the connection support to restrict the separation of the wire.
23. The method of claim 22,
The fan member may include a hub positioned at the center of the fan housing and rotating by receiving external power;
a plurality of fan blades spaced apart from each other along the outer circumferential surface of the hub; and
and a shroud connected to the end of the fan blade, installed in an annular shape, and spaced apart from the fan base.
28. The method of claim 27,
The outer diameter of the hub and the inner diameter of the shroud gradually decrease in a direction from the outlet to the inlet.
28. The method of claim 27,
The fan base may include: a plate-shaped base plate having a hollow for air movement and extending in the vertical direction;
a bell mouse installed in an annular shape on the inner side of the base plate facing the hollow, and having a concave longitudinal cross-section surrounding the lower side of the entrance protrusion of the shroud; and
and a coupling protrusion protruding from the base plate and coupled to the protruding boss of the fan housing.
30. The method of claim 29,
The fan base is
The portable air purifier further comprising: a protruding rib installed in an annular shape surrounding the outer circumference of the bell mouse and installed parallel to the outside of the fan member.
a housing portion having an accommodation space formed therein and having an inlet for sucking air and an outlet for discharging air;
a filter unit installed inside the housing unit facing the inlet unit;
a fan module unit installed inside the housing unit facing the discharge unit;
a filter case in which the filter unit is detachably installed, located between the filter unit and the fan module unit, and guides air movement from the filter unit to the fan module unit; and
a sterilization unit mounted on the filter case and irradiating light for sterilization toward the filter unit;
A first horizontal center line passing through the center of the housing in the transverse direction is located in the middle of the inlet and the outlet,
A distance between the first horizontal center line and the filter unit is referred to as D1,
When the distance between the first horizontal center line and the fan module part is D2,
D1 and D2 are portable air purifiers with different values.
32. The method of claim 31,
D1 is a portable air purifier with a larger value than D2.
32. The method of claim 31,
The center of the width direction of the inlet part, the filter part, the sterilization part, the fan module part, and the exhaust part coincide with each other.
32. The method of claim 31,
A second horizontal center line that intersects at right angles with the first horizontal center line at the center of the housing portion and extends in the lateral direction is a width direction center of the inlet portion, the filter portion, the sterilization portion, the fan module portion, and the discharge portion. A portable air purifier that passes through.
32. The method of claim 31,
A plurality of fan members provided in the fan module part are installed in the vertical direction,
A portable air purifier in which the sterilizer is installed in a position parallel to a vertical imaginary line vertically intersecting with the rotational center axis of the fan member and extending in the vertical direction.
32. The method of claim 31,
One side of the sterilization part is supported by the fixing protrusion of the filter case,
The other side of the sterilizing unit is supported by the fan module unit.

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