KR20230040207A - Air cleaner - Google Patents

Abstract

Disclosed is an air purifier which improves blowing performance through an air purifier guard grill structure. The disclosed air purifier comprises: a housing including an intake port and a discharge port; a double suction blower disposed inside the housing to suck air into the housing through the intake port and discharge air to the outside of the housing through the discharge port; and a guard grill disposed on an air path between the intake port and the double suction blower inside the housing. The guard grill includes: a casing cover provided to cover the circumference of a blower casing; and an inclined rib extending in the transverse direction of the housing and having a cross-section extending at an angle to the vertical direction to guide the air flowing in from the intake port toward an air inlet of the blower casing.

Description

Air purifier {AIR CLEANER}

The present disclosure relates to an air cleaner, and more particularly, to an air cleaner including a guard grill.

An air purifier is a device used to remove pollutants in the air. The air purifier can remove germs, viruses, molds, fine dust, and chemicals that cause odors in the inhaled air.

The air purifier may include a suction port for sucking polluted air, may include a discharge port for discharging purified air, and may include a blowing fan for generating air flow.

The air purifier may additionally include a guard having a grill structure as a protective member of the blowing fan in order to prevent the blowing fan from being exposed to the outside and injuring a user.

One aspect of the present disclosure provides an air purifier that improves blowing performance through an air purifier guard grill structure.

One aspect of the present disclosure provides an air purifier that improves flow resistance around a blowing fan through a guard grill structure of the air purifier.

One aspect of the present disclosure provides an air purifier that improves eddy current around a blowing fan through a guard grill structure of the air purifier.

An air purifier according to an example of the present disclosure includes a housing including a suction port and a discharge port, a double suction blower disposed inside the housing to suck air into the housing through the suction port and discharge air to the outside of the housing through the discharge port A double suction blower including a blower casing having air inlets formed on both sides and a fan disposed inside the blower casing to generate an air flow, and an air flow path between the suction port and the double suction blower in the inside of the housing. and a guard grill, wherein the guard grill extends in a transverse direction of a casing cover provided to cover a portion of the circumference of the blower casing and the housing, and directs air introduced from the inlet toward the air inlet of the blower casing. It includes an inclined rib having a cross section extending obliquely with respect to the vertical direction to guide.

The inclined rib is a first inclined rib disposed in front of the casing cover, the guard grill is disposed in front of the first inclined rib in parallel with the first inclined rib, and the air cleaner is introduced from the suction port. A second inclined rib having a cross section extending obliquely with respect to the vertical direction to guide air toward the air inlet of the blower casing may be further included.

An angle of inclination of the second inclined rib with respect to the vertical direction may be greater than an angle of inclination of the first inclined rib with respect to the vertical direction.

The guard grill is a plurality of first ribs arranged in the front-rear direction of the housing and extending in the transverse direction of the housing so as to intersect the plurality of first ribs including the inclined ribs and the plurality of first ribs. It may further include a plurality of second ribs extending in the front-back direction of the.

The plurality of second ribs may include a plurality of connection ribs extending downwardly from the casing cover so as to be connected to the inclined ribs.

The plurality of first ribs may further include a plurality of vertical ribs having cross sections extending in the vertical direction to guide air introduced from the suction port toward the air inlet of the blower casing.

The casing cover may include a cover plate disposed to cover a lower circumferential surface of the blower casing in a width direction of the blower casing corresponding to a horizontal direction of the housing.

A bottom of the cover plate may include an air flow guide unit for guiding air flow in the width direction of the blower casing so that air toward the casing cover is directed toward the air inlet.

The air flow guide part may include a curved part in which both ends of the bottom of the cover plate toward an edge of the blower casing in a width direction are curved toward the air inlet.

The airflow guide part may further include a guide inclined surface inclined upward from the center of the bottom of the cover plate toward the edge of the blower casing in the width direction.

The airflow guide part may further include a plurality of ribs protruding from the bottom of the cover plate and extending in a width direction of the blower casing.

The airflow guide part may further include a plurality of intaglio patterns regularly spaced apart on the bottom of the cover plate.

The guard grill may be mounted on the blower casing.

The guard grill may include a fastening part that can be mounted on the blower casing, and the fastening part may include a hooking hole provided at a rear side of the casing cover so that the hook can be fastened to the rear of the blower casing.

The fastening unit may further include a fastening hole provided at a front side of the casing cover to be screwed to the blower casing.

The guard grill may be provided to entirely cover the air passage inside the housing in a left and right direction.

The housing further includes a cabinet and a front panel disposed in front of the cabinet, having the suction port formed at a lower portion and the discharge port formed at an upper portion, and the air purifier includes air sucked into the housing through the suction port. Further comprising a filter disposed at the rear of the suction port to filter out foreign substances, the guard grill may be disposed between the suction blower and the filter in a vertical direction.

The air purifier may further include an electrical box disposed under the guard grill inside the housing.

An air purifier according to an example of the present disclosure includes a housing including a suction port and a discharge port, a blower casing disposed between the suction port and the discharge port, and having air inlets formed on both sides, and a double suction blower including a fan causing flow, and the suction port and a guard grill disposed between the blower casing, wherein the guard grill includes a plurality of first ribs extending in a transverse direction of the housing, and a plurality of first ribs intersecting the first ribs and extending in a front-back direction of the housing. 2 ribs and a casing cover corresponding to the circumferential surface of the blower casing, wherein the plurality of first ribs include inclined ribs positioned forward from the casing cover, and the inclined ribs direct air introduced from the inlet into the It is inclined toward the front of the housing with respect to the vertical direction to guide it toward the air inlet of the blower casing.

The plurality of second ribs are located in front of the casing cover and include a connecting rib connecting the casing cover and the inclined rib, and the connecting rib directs air introduced from the inlet toward the air inlet of the blower casing. It may be inclined downward from the casing cover to guide.

According to the present disclosure, it is possible to improve the blowing performance of the air purifier by not obstructing the flow of air flowing into the blowing fan through the guard grill structure of the air purifier.

According to the present disclosure, since the guard grill is positioned below the blowing fan, it is possible to prevent a user's safety accident and improve air flow resistance.

According to the present disclosure, since the guard grill guides air to flow into the blowing fan, eddy current around the blowing fan can be improved.

1 is a diagram illustrating an air purifier according to an embodiment of the present disclosure.
2 is a cross-sectional view of the air purifier shown in FIG. 1;
FIG. 3 is an exploded view illustrating the configuration of the air purifier shown in FIG. 1 .
FIG. 4 is a view showing that a discharge guide unit and a guard grill are coupled to both suction blowers of the air cleaner shown in FIG. 1 .
FIG. 5 is an enlarged view of both suction blowers and guard grilles of the air purifier shown in FIG. 3 .
6 is a view from above of the guard grill of the air purifier shown in FIG. 3 .
7 is a view of the guard grill of the air purifier shown in FIG. 3 viewed from below.
FIG. 8 is a cross-sectional view of a guard grill of the air purifier shown in FIG. 3;
9 and 10 are views illustrating a process in which the guard grill of the air cleaner shown in FIG. 1 is mounted on the blower casing.
11 is a view showing a casing cover of a guard grill according to another embodiment of the present disclosure.
12 is a view showing a casing cover of a guard grill according to another embodiment of the present disclosure.
13 is a view showing a casing cover of a guard grill according to another embodiment of the present disclosure.

The embodiments described in this specification and the configurations shown in the drawings are only one preferred example of the disclosed invention, and there may be various modifications that can replace the embodiments and drawings in this specification at the time of filing of the present application.

In addition, the same reference numerals or numerals presented in each drawing in this specification indicate parts or components that perform substantially the same function.

In addition, terms used in this specification are used to describe embodiments, and are not intended to limit and/or limit the disclosed invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "include" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It does not preclude in advance the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

In addition, terms including ordinal numbers such as “first” and “second” used herein may be used to describe various components, but the components are not limited by the terms, and the terms It is used only for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention. The term "and/or" includes any combination of a plurality of related listed items or any of a plurality of related listed items.

Meanwhile, the terms "front", "upper", "lower", "left", and "right" used in the following description are defined based on the drawing, and the shape and location of each component are limited by these terms. it is not going to be

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

In addition, although an air cleaner, which is a kind of air conditioner, will be described as an example for convenience of explanation, the configuration of the present disclosure is not limited to the air cleaner and may be applied to the air conditioner. For example, it can also be applied to air conditioners and other types of air conditioners such as air conditioners. Moreover, it can be applied to any home appliance as long as it has a fan for sucking and discharging air and a structure accessible to the fan from the outside. When the present invention is applied to an air conditioner, a configuration of a heat exchanger may be further included.

1 is a diagram illustrating an air purifier according to an embodiment of the present disclosure.

As shown in FIG. 1 , the air purifier 1 may include a housing 2 . The housing 2 may include a cabinet 3 having an open front portion and a front panel 7 coupled to the open front portion of the cabinet 3 .

The cabinet 3 may include a back panel 4 provided to form a rear surface, a floor panel 6 provided to form a floor, and a top panel 5 provided to form a ceiling. In FIG. 1, the back panel 4 is illustrated as an example in which both side surfaces and rear surfaces are integrally formed, but the present disclosure is not limited thereto. For example, the cabinet 3 may further include left and right side panels provided to form both sides.

In FIG. 1 , the front panel 7 is separately configured in front of the housing 2 as an example, but the present disclosure is not limited thereto. For example, the front panel 7 may be integrally formed with the cabinet 3.

A suction port 9 may be formed at a front lower portion of the housing 2 . That is, the inlet 9 may be disposed under the front panel 7 . The inlet 9 may be formed to allow outside air to flow from the front of the front panel 7 toward the inside of the cabinet 3 (Y-axis direction).

A blocking jaw 8 may be formed at a lower portion of the inlet 9 . That is, the barrier 8 is located below the inlet 9 on the front panel 7 to prevent relatively heavy substances such as hair or large dust from entering the inlet 9 of the air purifier 1. can

Air introduced into the cabinet 3 through the inlet 9 may be discharged to the outside through the outlet 10 .

A discharge port 10 may be formed in a front upper portion of the housing 2 . That is, the outlet 10 may be disposed above the front panel 7 . Although the outlet 10 of this embodiment is illustrated as being disposed above the front panel 7 as an example, the present disclosure is not limited thereto. For example, the discharge port 10 may be provided on the top panel 5 forming the upper surface of the cabinet 3 .

In this embodiment, the inlet 9 is formed on the lower part of the housing 2 and the discharge hole 10 is formed on the upper part of the housing 2, but the present disclosure is not limited thereto. For example, the discharge port 10 may be disposed at the lower portion of the housing 2 and the suction port 9 may be disposed at the upper portion of the housing 2 .

A discharge blade 11 may be provided in the discharge port 10 to open or close the discharge port 10 or to adjust the direction of air discharged from the inside of the cabinet 3 .

A control manipulation unit 12 provided to input an operating command of the air cleaner 1 and display an operating state may be disposed on the front panel 7 .

2 is a cross-sectional view of the air purifier shown in FIG. 1;

As shown in FIG. 2 , the air purifier 1 may include a blower installed inside the housing 2, a guard grill 15, a filter 13, and an electrical box 14.

The blowing device of the air purifier 1 may include a double suction blower 40. The double suction blower 40 may include a fan 43, a motor 41, a motor bracket 48, a bracket plate 49, and a blower casing 50 accommodating the fan 43.

The air purifier 1 may include a filter 13. The filter 13 may be provided to filter air introduced through the inlet 9 . The filter 13 may be disposed inside the housing 2 . The filter 13 may be disposed inside the cabinet 3 and disposed below the double suction blower 40 . A filter 13 may be disposed adjacent to the rear of the inlet 9 .

A plurality of filters 13 may be provided in the vertical direction (Z-axis direction). That is, the filters 13 may be provided in a plurality of layers in the front-back direction (Y-axis direction) of the housing 2, and are spaced apart from each other in the up-down direction (Z-axis direction) of the housing 2 and are provided in a plurality of pieces. may be provided.

In FIG. 2 , a plurality of filters 13 are provided and shown to be disposed behind the inlet 9 as an example, but the present disclosure is not limited thereto. For example, the filter 13 may be provided as a single piece.

The air purifier 1 may include an electrical box 14. The electrical box 14 may be installed inside the housing 2 . The electrical box 14 may be disposed below the double suction blower 40 . Although the electrical box 14 of this embodiment is illustrated as being disposed inside the back panel 4 of the cabinet 3 as an example, the present disclosure is not limited thereto. For example, the electrical box 14 may be disposed inside the left and right side panels of the housing 2 .

A printed circuit board driving the air cleaner 1 may be mounted on the electrical box 14 .

The electrical box 14 may be rotatably coupled to the inner surface of the housing 2 by a hinge. The electrical box 14 can be pivoted in an opening and closing manner so that the user can easily access the printed circuit board inside the electrical box 14 .

The air purifier 1 may include a guard grill 15 . The guard grill 15 may be disposed under the double suction blower 40 to prevent a user from accessing the fan 43 . Specifically, it may be disposed under the blower casing 50 .

For example, when inspecting or repairing the air purifier 1, the front panel 7 is separated and the intake port 9 is opened to work. In particular, when working in a state where the filter 13 is separated from the air purifier 1 to remove dust or foreign substances attached to the filter 13 or to repair the electrical box 14, the body It becomes a state in which it can contact the fan 43. In this situation, when the air purifier 1 is operated and the fan 43 rotates at high speed, a part of the body may contact the fan 43 inadvertently, resulting in a safety accident. To prevent such a safety accident, a guard grill 15 is disposed in the air purifier 1.

As shown in FIG. 2, the guard grill 15 is disposed below the double suction blower 40 inside the air purifier 1, so that the filter 13 is separated from the air purifier 1 and the double suction blower 40 ) is exposed downward, preventing a part of the body from coming into contact with the fan 43. The guard grill 15 may be disposed above the electrical box 14 . The guard grill 15 may be disposed between the electrical box 14 and the double suction blower 40 . The guard grill 15 may be disposed above the filter 13 . The guard grill 15 may be disposed between the filter 13 and the suction blower 40 in the vertical direction.

The air purifier 1 may include a suction port 9 and a discharge port 10 . Left and right wind direction control blades 11a and up and down wind direction control blades 11b for adjusting the discharge direction of air may be installed in the outlet 10 . The double suction blower 40 may be disposed between the suction port 9 and the discharge port 10, and the guard grill 15 may be disposed between the suction port 9 and the double suction blower 40. The guard grill 15 is disposed on the air flow path between the inlet 9 and the double suction blower 40, and may be disposed upstream of the double suction blower 40.

External air is sucked into the housing 2 through the inlet 9 of the air purifier 1, passes through the guard grill 15 and flows into the air inlet 51 of the blower casing 50, and the blower casing ( It is discharged through the air outlet 52 of 50) and can be discharged to the outlet 10 through the discharge guide part 53.

The outlet 10 of the air purifier 1, the double suction blower 50, the guard grill 15, and the inlet 9 may be sequentially arranged in the vertical direction (Z-axis direction) of the housing 2.

FIG. 3 is an exploded view illustrating the configuration of the air purifier shown in FIG. 1 . FIG. 4 is a view showing that a discharge guide unit and a guard grill are coupled to both suction blowers of the air cleaner shown in FIG. 1 . FIG. 5 is an enlarged view of both suction blowers and guard grilles of the air purifier shown in FIG. 3 .

3 to 5, the double suction blower 40 may include a fan 43, a motor 41, a motor bracket 48, a bracket plate 49 and a blower casing 50 .

The fan 43 may be connected to the rotation shaft 42 and rotated by the motor 41 .

The fan 43 is a cylindrical member capable of sucking air from both sides and sucking air from both sides in an axial direction (X-axis direction) and discharging it in a circumferential direction. A fan 43 may cause a flow.

The fan 43 may include a middle plate 44, a center hole 45, a plurality of blades 47, and a pair of rings 46.

A pair of rings 46 are installed parallel to each other and spaced a certain distance apart, and form both ends of the fan 43 . The ring 46 is formed in a circular ring shape, and can fix and support one end of a plurality of blades 47 . External air may be introduced into the fan 43 through the pair of rings 46 .

The middle plate 44 is installed between the pair of rings 46. The middle plate 44 is formed as a disk having a diameter corresponding to the ring 46, and a center hole 45 may be formed at the center of the middle plate 44. The other ends of the plurality of blades 47 may be fixed to the outer circumference of the middle plate 44 .

A plurality of blades 47 extending in the axial direction (X-axis direction) may be disposed around the fan 43 at regular intervals. A plurality of blades 47 may be installed between the pair of rings 46 and the middle plate 44 . A plurality of blades 47 may be formed in a rectangular shape. When the fan 43 is rotated by the motor 41, the introduced air may be discharged through between the plurality of blades 47 in the radial direction of the fan 43.

The motor 41 is installed on one side of the fan 43 and may transmit rotational force to the fan 43 . The rotation shaft 42 of the motor 41 may be connected to the center hole 45 of the fan 43 .

The motor 41 may be mounted on the motor bracket 48. The motor bracket 48 may include a through hole so that the motor 41 can be mounted therein. The motor 41 may be supported by the motor bracket 48 and fixed to one side of the fan 43 . The motor bracket 48 may be spaced apart from one side of the fan 43. The motor bracket 48 may be disposed between the discharge guide unit 53 and the guard grill 15 .

Referring to FIG. 4 , the motor bracket 48 may be supported by a bracket plate 49 . The motor bracket 48 may be coupled to the bracket plate 49 and supported on one side of the fan 43 . The bracket plate 49 may be mounted on the discharge guide part 53 . The bracket plate 49 includes a plate 49a extending in the horizontal direction (X-axis direction) of the discharge guide part 53 and a plate 49b extending downward in the Z-axis direction and coupled to the motor bracket 48. can do. The motor bracket 48 is supported on the discharge guide part 53 by the bracket plate 49 to fix the motor 41 to one side of the fan 43 . The motor bracket 48 and the bracket plate 49 may be screwed together.

A fan 43 generating air flow may be disposed inside the blower casing 50 .

The blower casing 50 is formed to accommodate the fan 43, and the air inlet 51 of the blower casing 50 is formed at positions corresponding to both sides in the axial direction (X-axis direction) of the fan 43, An air outlet 52 of the blower casing 50 is formed at a position corresponding to one side of the fan 43 in the circumferential direction.

Therefore, when the fan 43 rotates, air is sucked in the axial direction (X-axis direction) of the fan 43 through the air inlet 51 of the blower casing 50, and the blower casing ( It is discharged through the air outlet 52 of 50).

On one side of the blower casing 50, while the fan 43 rotates by the motor 41, the air introduced in the axial direction (X-axis direction) and discharged in the radial direction is collected and discharged in one place. Discharge guide A portion 53 is formed. Accordingly, the air discharged through the air outlet 52 of the blower casing 50 passes through the discharge guide part 53 and is discharged to the outside of the air purifier 1 through the outlet 10 .

A guard grill 15 may be disposed under the both suction blower 40 . The guard grill 15 may be disposed under the blower casing 50 . The guard grill 15 may include a plurality of ribs forming a plurality of openings 25 to guide air sucked through the suction port 9 to the air inlet 51 of the blower casing 50 .

6 is a view from above of the guard grill of the air purifier shown in FIG. 3 . 7 is a view of the guard grill of the air purifier shown in FIG. 3 viewed from below. FIG. 8 is a cross-sectional view of a guard grill of the air purifier shown in FIG. 3;

As shown in FIG. 6, the guard grill 15 may include a plurality of first ribs 16 arranged in the front-back direction (Y-axis direction) of the housing 2 when mounted inside the housing 2. can The plurality of first ribs 16 may be provided extending in the horizontal direction (X-axis direction) of the housing 2 .

The guard grill 15 may include a plurality of second ribs 20 extending in the front-rear direction (Y-axis direction) of the housing 2 when mounted inside the housing 2 . The plurality of second ribs 20 may cross the plurality of first ribs 16 to form a plurality of openings 25 . The plurality of openings 25 may be formed in a rectangular shape.

The size of the opening 25 may be set substantially smaller than the size of the user's wrist so that the user's wrist does not pass through. When the guard grill 15 is installed on both sides of the blower casing 50 so as to cover the air inlet 51 of the blower casing 50, when the opening 25 is designed to be large, the user's fingers do not stick to the fan 43 There is a risk of touching it, so it cannot be designed to be larger than a predetermined size corresponding to the size of a finger. Specifically, the size of the opening 25 corresponding to the size of a finger is 48 mm in the X-axis direction and 7.5 mm in the Y-axis direction. Therefore, the separation distance of the ribs forming the opening 25 is narrowed and the blowing resistance is increased. However, according to an example of the present disclosure, the size of the opening 25 may be enlarged and designed by installing the guard grill 15 below the blower casing 50 . Specifically, the size of the opening 25 may be designed to correspond to the size of the user's wrist. The size of the opening 25 may be formed to a maximum of 75 mm in the X-axis direction and a maximum of 35 mm in the Y-axis direction. That is, the size of the opening 25 may be larger than the size corresponding to the finger and equal to or smaller than the size corresponding to the wrist. Specifically, the size of the opening 25 is greater than about 48 mm in the X-axis direction and about 7.5 mm in the Y-axis direction, and equal to or smaller than about 75 mm in the X-axis direction and about 35 mm in the Y-axis direction. can The sizes of the plurality of openings 25 may be different from each other.

The guard grill 15 may include a casing cover 30 provided to cover a portion of the circumference of the blower casing 50 . The casing cover 30 may cover the lower circumferential surface of the blower casing 50 (see FIGS. 4 and 5). The area of the casing cover 30 may correspond to the area of the lower circumferential surface of the blower casing 50 . Some of the openings 25 of the guard grill 15 may be closed by the casing cover 30 .

The casing cover 30 may include a cover plate 31 . The cover plate 31 is disposed to cover the lower circumferential surface of the blower casing 50 in the width direction (X-axis direction) of the blower casing 50 corresponding to the horizontal direction of the housing 2 of the blower casing 50. can The cover plate 31 may have a curved surface corresponding to the circumferential surface of the blower casing 50 .

A rigid rib 32 for rigidity may be included on the inner surface of the cover plate 31 . A plurality of rigid ribs 32 may be provided.

As shown in FIG. 7, the bottom of the cover plate 31 is disposed in the blower casing 50 width direction (X) so that air toward the casing cover 30 is directed toward the air inlet 51 of the blower casing 50. axial direction) may include an air flow guide part 36 for guiding the air flow.

The air flow guide part 36 includes a curved part 37 formed such that both ends toward the edge of the blower casing 50 in the width direction (X-axis direction) are curved toward the air inlet 51 of the blower casing 50 can do. Air moved to the casing cover 30 may be guided to the air inlet 51 of the blower casing 50 by the curved portion 37 of the cover plate 31 .

The curved portion 37 may be formed at both ends of the cover plate 31 in the X-axis direction. Both edges of the cover plate 31 in the X-axis direction may be provided in a curved shape by the curved portion 37 .

The guard grill 15 may include a first fastening part that may be mounted on the blower casing 50 . The first fastening part may be provided on the casing cover 30 . The first fastening part may be provided on the cover plate 31 of the casing cover 30 .

The first fastening part may include an engaging hole 33 . The locking hole 33 may be provided in the form of an opening on the rear side of the casing cover 30 . The locking hole 33 may be formed in a rectangular shape. The locking hole 33 of the guard grill 15 may be hooked to the rear of the blower casing 50 . The locking hole 33 may be provided in plurality.

The first fastening part may include a fastening hole 34 . The fastening hole 34 may be provided on the front side of the casing cover 30 . The fastening hole 34 may be formed by being recessed inward. The fastening hole 34 of the guard grill 15 may be screwed to the blower casing 50 . A screw inserted into the fastening hole 34 may pass through the guard grill 15 and the blower casing 50 . A plurality of fastening holes 34 may be provided.

The first fastening part may include a boss 35 . The boss 35 may be provided between the locking hole 33 and the fastening hole 34 of the casing cover 30 . The boss 35 may protrude upward from the casing cover 30 . The boss 35 of the guard grill 15 may be coupled to the blower casing 50 . The boss 35 may be provided in a triangular shape. The inner surface of the boss 35 may include a recessed circular shape. The boss 35 may be provided in plurality.

When the guard grill 15 is mounted on the blower casing 50, hook the hook hole 33 of the guard grill 15 to the rear of the blower casing 50, and the boss 35 of the guard grill 15 By supporting the blower casing 50 , the fastening hole 34 of the guard grill 15 may be coupled to the blower casing 50 .

The guard grill 15 may include a casing cover 30 and may be formed with a plurality of ribs spaced apart from the outside thereof.

The first rib 16 of the guard grill 15 may include at least one inclined rib 17 or 18 . The inclined ribs 17 and 18 may be disposed in front of the casing cover 30 . The inclined ribs 17 and 18 may be inclined with respect to the vertical direction (Z-axis direction) so as to guide the air introduced from the suction port 9 toward the air inlet 51 of the blower casing 50 .

As shown in FIG. 8, the inclined ribs 17 and 18 may have a cross section inclined toward the front of the housing 2 with respect to the vertical direction. The inclined ribs 17 and 18 may include a first inclined rib 17 disposed in front of the casing cover 30 . The first rib 16 may include a second inclined rib 18 disposed in front of the first inclined rib 17 . The second inclined rib 18 may be disposed on the outermost side of the guard grill 15 . The second inclined rib 18 may be inclined with respect to a vertical direction (Z-axis direction) so as to guide the air introduced from the suction port 9 toward the air inlet 51 of the blower casing 50 . The second inclined rib 18 may have a cross section inclined toward the front of the housing 2 with respect to the vertical direction. The second inclined rib 18 may be disposed parallel to the first inclined rib 17 .

)는 제1 경사리브(17)가 수직 방향에 대해 경사진 각도(

)보다 클 수 있다. 제2 경사리브(18)는 제1 경사리브(17)보다 수직 방향에 대해 하우징(2) 전방을 향해 크게 기울어질 수 있다. The angle at which the second inclined rib 18 is inclined with respect to the vertical direction (Z-axis direction) (

) is the angle at which the first inclined rib 17 is inclined with respect to the vertical direction (

) can be greater than The second inclined rib 18 may be inclined more toward the front of the housing 2 in the vertical direction than the first inclined rib 17 .

The second inclined rib 18 may be provided in plurality. Among the plurality of second inclined ribs, the inclined angle of the second inclined rib located at the front of the housing 2 with respect to the vertical direction (Z-axis direction) may be greater than the inclined angle of the second inclined rib located at the rear with respect to the vertical direction. . The plurality of second inclined ribs may be provided with a greater inclination toward the front of the housing 2 as they are located in the front of the housing 2 .

As shown in FIGS. 6 and 7 , the first rib 16 of the guard grill 15 may include a vertical rib 19 . The vertical rib 19 may be disposed behind the inclined ribs 17 and 18. The vertical ribs 19 may be provided extending from both edges corresponding to the width direction (X-axis direction) of the housing 2 of the casing cover 30 . The vertical ribs 19 may be provided to support both edges of the casing cover 30 . The vertical rib 19 may have a cross section extending in a vertical direction (Z-axis direction) to guide air introduced from the suction port 9 toward the air inlet 51 of the blower casing 50 . A plurality of vertical ribs 19 may be provided.

The guard grill 15 may be provided to entirely cover the air flow path inside the housing 2 in the left and right directions (X-axis direction).

The second rib 20 of the guard grill 15 may include a connection rib 21 . The connection rib 21 may extend from the casing cover 30 so that the casing cover 30 is connected to the inclined ribs 17 and 18 . The connection rib 21 may be provided in front of the casing cover 30 . The connecting rib 21 may cross the first inclined rib 17 and/or the second inclined rib 18 . The connection rib 21 may be provided to support one side of the casing cover 30 . The connection rib 21 may be formed to be inclined downward from the casing cover 30 so as to guide the air introduced from the inlet 9 toward the air inlet 51 of the blower casing 50 . The connecting ribs 21 may be provided in plurality.

6 and 7, the inclined ribs 17 and 18 of the guard grill 15 may be disposed at the rear of the casing cover 30. At this time, the inclined rib may have a cross section inclined toward the rear of the housing 2 with respect to the vertical direction. The inclined ribs may be provided in plurality, and may include a first inclined rib disposed behind the casing cover 30 and a second inclined rib disposed rearward of the first inclined rib. The second inclined rib may be inclined more toward the rear of the housing 2 in the vertical direction than the first inclined rib.

That is, the guard grill 15 may include inclined ribs located in front and/or rear of the casing cover 30 . Inclined ribs located in the front and/or rear of the casing cover 30 may be provided with a greater inclination towards the front and/or rear of the housing 2 as the outermost ribs are located. The inclined ribs located at the front and/or rear of the casing cover 30 may guide air introduced from the suction port 9 toward the air inlet 51 of the blower casing 50 .

9 and 10 are views illustrating a process in which the guard grill of the air cleaner shown in FIG. 1 is mounted on the blower casing.

The blower casing 50 may include a second fastening part coupled to the guard grill 15 . The second fastening part may correspond to the first fastening part of the guard grill 15 .

The second fastening part may include a locking jaw 55 . The locking jaw 55 may protrude from the rear of the blower casing 50 and may be provided. The locking jaw 55 of the blower casing 50 may be coupled to correspond to the locking hole 33 of the guard grill 15 . The locking hole 33 of the guard grill 15 is rotatably fastened to the locking jaw 55 of the blower casing 50 so that the guard grill 15 can be coupled to the lower side of the blower casing 50 . The locking jaw 55 may be provided in plurality. The locking jaw 55 may include a rib.

The second fastening part may include a fastening protrusion 56 . The fastening protrusion 56 may protrude from the center of the blower casing 50 . The fastening protrusion 56 may be screwed to correspond to the fastening hole 34 of the guard grill 15 . A plurality of fastening protrusions 56 may be provided.

The second fastening part may include a boss coupling protrusion 57 . The boss coupling protrusion 57 may be provided between the locking protrusion 55 and the fastening protrusion 56 . The boss coupling protrusion 57 may be coupled to correspond to the boss 35 of the guard grill 15 . The boss coupling protrusion 57 may have a cylindrical shape. The boss coupling protrusion 57 may correspond to the shape of the recessed portion of the boss 35 of the guard grill 15 . The boss coupling protrusion 57 may be provided in plurality.

The guard grill 15 may be coupled to the blower casing 50 by fastening the first fastening part of the guard grill 15 to the second fastening part of the blower casing 50 . The locking hole 33 of the guard grill 15 is coupled to the locking jaw 55 of the blower casing 50 so that the guard grill 15 can be hooked and supported at the rear of the blower casing 50 . The boss 35 of the guard grill 15 is coupled to the boss coupling protrusion 57 of the blower casing 50 so that the guard grill 15 can be supported by hanging in the center of the bottom of the blower casing 50 . The fastening hole 34 of the guard grill 15 may be coupled to the fastening protrusion 56 of the blower casing 50 by a screw.

The guard grill 15 can be easily supported by the blower casing 50 by the combination of the locking jaw 55 and the locking hole 33 at the rear of the blower casing 50, which is difficult to reach by the user. The guard grill 15 can be strongly fixed to the blower casing 50 by screw coupling between the fastening protrusion 56 and the fastening hole 34 at the front of the blower casing 50, which is easily accessible to the user. When checking or repairing the air purifier (1), the fastening hole (34) of the guard grill (15) can be separated from the fastening protrusion (56) of the blower casing (50) at the front of the housing (2), which is easily accessible. there is. At this time, the locking hole 33 of the guard grill 15 may be in a state where it is caught and supported by the locking jaw 55 of the blower casing 50, and the fastening hole 34 of the guard grill 15 is connected to the blower casing ( After separating from the fastening protrusion 56 of 50, the locking hole 33 of the guard grill 15 may be separated from the locking jaw 55 of the blower casing 50.

The guard grill 15 may be disposed under the blower casing 50 in a curved shape corresponding to the circumferential surface of the blower casing 50 by being coupled to the blower casing 50 . The guard grill 15 may be provided in a curved shape along the circumference of the blower casing 50 .

The guard grill 15 may be coupled to the lower portion of the blower casing 50 by a first fastening part. Although the first fastening part of the guard grill 15 of the present embodiment is illustrated as being composed of the locking hole 33, the fastening hole 34, and the boss 35 as an example, the present disclosure is not limited thereto. The guard grill 15 may also be mounted on the blower casing 50 by other methods. In addition, the guard grill 15 and the blower casing 50 are not limited to being separably provided, and the guard grill 15 may be integrally formed with the blower casing 50 .

11 is a view showing a casing cover of a guard grill according to another embodiment of the present disclosure.

The casing cover 30 may include a cover plate 31, and the bottom of the cover plate 31 is such that air toward the casing cover 30 is directed toward the air inlet 51 of the blower casing 50. The blower casing 50 may include an air flow guide part 36 for guiding the air flow in the width direction (X-axis direction).

The airflow guide part 36 may include a guide inclined surface 60 . The guide inclined surface 60 may be inclined upward from the center of the bottom of the cover plate 31 toward the edge of the blower casing 50 in the width direction (X-axis direction). The air that is sucked in from the inlet 9 and moved to the casing cover 30 is guided to both sides of the blower casing 50 by the inclined guide surface 60 and can be sucked into the air inlet 51 . Guide inclined surface 60 may be formed to achieve left-right symmetry.

Although the guide inclined surface 60 of this embodiment is illustrated as an example in which the vertical section is provided in a triangular shape, the present disclosure is not limited thereto. For example, the vertical cross section of the guide inclined surface 60 may be provided in a semicircular shape.

The airflow guide part 36 may include a rib that protrudes from the bottom of the cover plate 31 and extends in the front-rear direction (Y-axis direction) of the blower casing 50 .

12 is a view showing a casing cover of a guard grill according to another embodiment of the present disclosure.

The cover plate 31 may include an air flow guide portion 36, and the air flow guide portion 36 protrudes from the bottom of the cover plate 31 and extends in the width direction (X-axis direction) of the blower casing 50 It may include a plurality of ribs 61 to be. The plurality of ribs 61 may be spaced apart from each other at regular intervals in the front-back direction (Y-axis direction). A plurality of ribs 61 may be provided to correspond to the horizontal length of the bottom of the cover plate 31 .

The air sucked in from the inlet 9 and moved to the casing cover 30 is guided to both sides of the blower casing 50 by a plurality of ribs provided in the casing cover 30 and is sucked into the air inlet 51.

13 is a view showing the casing cover 30 of the guard grill 15 according to another embodiment of the present disclosure.

The cover plate 31 may include an air flow guide part 36 , and the air flow guide part 36 may include an engraved pattern 62 formed on the bottom of the cover plate 31 . The intaglio patterns 62 may be formed to be regularly spaced apart. Although the intaglio pattern 62 of this embodiment is illustrated as being provided in a circular shape, for example, the present disclosure is not limited thereto. For example, the intaglio pattern 62 may be provided in a rectangular shape.

The air that is sucked in from the inlet 9 and moved to the casing cover 30 is guided to both sides of the blower casing 50 by reducing the resistance by the intaglio pattern 62 provided on the casing cover 30, so that the air inlet 51 can be inhaled.

In the above, specific embodiments have been illustrated and described. However, it is not limited to the above embodiments, and those skilled in the art will be able to make various changes without departing from the gist of the technical idea of the invention described in the claims below. .

1 : Air purifier
2 : Housing
9: inlet
10: discharge port
15 : guard grill
16: first rib
17: first inclined rib
18: second inclined rib
19: vertical rib
20: second rib
21: connecting rib
30: casing cover
31: cover plate
40: double suction blower
50: blower casing
51: air inlet

Claims (20)

A housing including an inlet and a discharge port;
A double suction blower disposed inside the housing to suck air into the housing through the suction port and discharge air to the outside of the housing through the discharge port, the blower casing having air inlets formed on both sides and the blower to generate air flow A double suction blower including a fan disposed inside the casing; and
Including a guard grill disposed on the air flow path between the suction port and the double suction blower inside the housing,
The guard grill,
a casing cover provided to cover a portion of the circumference of the blower casing; and
An inclined rib extending in a transverse direction of the housing and having a cross section extending obliquely with respect to a vertical direction to guide the air introduced from the suction port toward the air inlet of the blower casing. According to claim 1,
The inclined rib is a first inclined rib disposed in front of the casing cover,
The guard grille is disposed in front of the first inclined rib in parallel with the first inclined rib, and has a cross section extending obliquely with respect to the vertical direction to guide the air introduced from the suction port toward the air inlet of the blower casing. An air purifier further comprising a second inclined rib. According to claim 2,
The angle of inclination of the second inclined rib with respect to the vertical direction is greater than the angle of inclination of the first inclined rib with respect to the vertical direction. According to claim 1,
The guard grill includes a plurality of first ribs arranged in front and rear directions of the housing and extending in a transverse direction of the housing, including a plurality of first ribs including the inclined ribs; and
The air purifier further comprises a plurality of second ribs extending in the front-rear direction of the housing to intersect the plurality of first ribs. According to claim 4,
The plurality of second ribs include a plurality of connecting ribs extending obliquely downward from the casing cover so as to be connected to the inclined ribs. According to claim 4,
The plurality of first ribs further include a plurality of vertical ribs having cross sections extending in the vertical direction to guide the air introduced from the suction port toward the air inlet of the blower casing. According to claim 1,
The casing cover includes a cover plate disposed to cover a lower circumferential surface of the blower casing in a width direction of the blower casing corresponding to a horizontal direction of the housing. According to claim 7,
The bottom of the cover plate includes an air flow guide portion for guiding air flow in the width direction of the blower casing so that air toward the casing cover is directed toward the air inlet. According to claim 8,
The air purifier includes a curved portion in which both ends of the air flow guide portion toward the edge of the blower casing at the bottom of the cover plate are curved toward the air inlet. According to claim 9,
The air purifier further comprises a guide slope inclined upward from the center of the bottom of the cover plate to the edge of the blower casing in the width direction of the air flow guide unit. According to claim 9,
The air purifier further comprises a plurality of ribs protruding from the bottom of the cover plate and extending in a width direction of the blower casing. According to claim 9,
The air purifier further comprises a plurality of intaglio patterns regularly spaced apart on the bottom of the cover plate. According to claim 1,
The guard grill is an air purifier mounted to the blower casing. According to claim 13,
The guard grill includes a fastening part that can be mounted on the blower casing,
The air purifier including a hooking hole provided on the rear side of the casing cover so that the fastening part can be hooked to the rear of the blower casing. According to claim 14,
The air purifier further comprises a fastening hole provided on the front side of the casing cover so that the fastening part can be screwed to the blower casing. According to claim 1,
The air purifier wherein the guard grill is provided to entirely cover the air flow path inside the housing in the left and right directions. According to claim 1,
the housing,
a cabinet, and a front panel disposed at a front of the cabinet, having the inlet at a lower portion and having the outlet at an upper portion;
The air purifier further includes a filter disposed at the rear of the inlet to filter out foreign substances in the air sucked into the housing through the inlet,
The air purifier wherein the guard grill is disposed between the double suction blower and the filter in the vertical direction. According to claim 1,
The air purifier further comprising an electrical box disposed under the guard grill inside the housing. A housing including an inlet and a discharge port;
A double suction blower disposed between the suction port and the discharge port, and including a blower casing having air inlets formed on both sides and a fan causing flow; and
Including a guard grill disposed between the inlet and the blower casing,
The guard grill includes a plurality of first ribs extending in a horizontal direction of the housing, a plurality of second ribs crossing the first ribs and extending in a front-back direction of the housing, and a casing cover corresponding to a circumferential surface of the blower casing. Including,
The plurality of first ribs include inclined ribs located forward from the casing cover,
The inclined rib is inclined toward the front of the housing with respect to a vertical direction to guide the air introduced from the suction port toward the air inlet of the blower casing. According to claim 19,
The plurality of second ribs are located forward from the casing cover and include a connecting rib connecting the casing cover and the inclined rib,
The connection rib is inclined downward from the casing cover to guide the air introduced from the suction port toward the air inlet of the blower casing.

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