Cleaner

Abstract

The cleaner includes a body having a body vent, a filter mountable within the body, and a fan motor device. The fan motor device includes: an impeller configured to be rotatable so as to generate a suction force in a main body; a motor configured to provide driving power to rotate the impeller; and a diffuser device. The diffuser arrangement includes a radiant diffuser extending in a radial direction from the rotational axis of the impeller and an axial diffuser extending from the radiant diffuser. The fan motor device is configured such that: when the filter is installed in the main body, the impeller rotates by driving power provided by the motor; and air is discharged from the impeller while passing through the fan motor device, is guided by the radiation diffuser in a radial direction from a rotation axis of the impeller, is guided by the filter due to the axial diffuser to be filtered, and is discharged through the main body exhaust port.

Description

Technical Field

[0001] The present disclosure relates to a cleaner having a diffuser. Background Art

[0002] A cleaner is an appliance that cleans an indoor space by removing garbage from the indoor space. At home, a vacuum cleaner is generally used. The vacuum cleaner cleans the indoor space by sucking in air using the suction force of a fan motor device and then separating garbage from the sucked air through a device such as a filter. Vacuum cleaners are divided into canister types and upright types. Recently, robot cleaners that travel on a cleaning area by themselves without user control to perform cleaning tasks by sucking in garbage such as dust from a floor to be cleaned have become popular.

[0003] The cleaner includes a fan motor device for generating suction force, and the fan motor device inputs external air and garbage into the interior of the cleaner, and then discharges the air from which the garbage has been filtered to the outside of the cleaner.

[0004] The fan motor device includes an impeller and a diffuser for diffusing air discharged from the impeller. The diffuser improves the efficiency of the fan motor device by diffusing the air discharged from the impeller. Since the diffuser extends in the direction of the rotation axis of the impeller, the length and / or weight of the cleaner may increase. Summary of the invention

[0005] Publicly available technology

[0006] Therefore, an aspect of the present disclosure is to provide a cleaner capable of reducing the length.

[0007] An aspect of the present disclosure is to provide a cleaner capable of reducing weight.

[0008] An aspect of the present disclosure is to provide a cleaner capable of improving efficiency.

[0009] An aspect of the present disclosure is to provide a cleaner capable of improving heat dissipation efficiency of a motor.

[0010] The technical objectives of the present disclosure are not limited to the above description, and according to the following detailed description, persons having common knowledge in the technical field to which the present disclosure belongs will also clearly understand other technical objectives not described herein.

[0011] Technical Solution

[0012] The cleaner according to the concept of the present disclosure includes: a body including a body exhaust port; a filter that can be installed in the body; and a fan motor device. The fan motor device includes: an impeller configured to be rotatable to generate suction in the body; a motor configured to provide power to rotate the impeller; and a diffuser device. The diffuser device includes a radiating diffuser extending in a radial direction from the rotation axis of the impeller and an axial diffuser extending from the radiating diffuser. The fan motor device is configured so that: when the filter is installed in the body, the rotation of the impeller by the power provided by the motor causes the air to pass through the fan motor device and be discharged from the impeller, and then be guided by the radiating diffuser in a radial direction from the rotation axis of the impeller, and then be guided by the axial diffuser to the filter for filtration, and then be discharged through the body exhaust port.

[0013] The radiation diffuser may include radiation blades configured to diffuse air directed by the radiation diffuser.

[0014] The axial diffuser may include axial vanes configured to diffuse air directed by the axial diffuser.

[0015] The axial diffuser includes a first axial diffuser extending from the radiation diffuser and a second axial diffuser extending from the first axial diffuser.

[0016] The first axial diffuser may include first axial vanes configured to diffuse air directed by the first axial diffuser, and the second axial diffuser may include second axial vanes configured to diffuse air directed by the second axial diffuser.

[0017] The radiation diffuser may include a first radiation diffuser extending in a direction in which the impeller discharges air.

[0018] The radiation diffuser may include a second radiation diffuser extending from the first radiation diffuser in a direction perpendicular to the rotational axis of the impeller.

[0019] With the filter mounted in the body, the axial diffuser may be configured to discharge air directed by the axial diffuser in a direction toward the filter.

[0020] The motor may be positioned on the side of the impeller opposite the diffuser arrangement for drawing in air.

[0021] With the filter mounted within the body, the filter may surround the fan motor arrangement in a circumferential direction relative to the rotational axis of the impeller.

[0022] The diffuser device may be configured to discharge air toward a side of the impeller for drawing in air.

[0023] The diffuser device may include an outlet to discharge air guided by the axial diffuser, the outlet being positioned adjacent to a first side of the filter when the filter is installed in the body, and the body exhaust port may be positioned adjacent to a second side of the filter opposite to the first side of the filter when the filter is installed in the body.

[0024] The diffuser assembly may include an outlet to discharge air directed by the axial diffuser, and with the filter mounted within the body, the filter may extend upwardly from the outlet of the diffuser assembly to the body exhaust port.

[0025] The filter may be a high efficiency particulate air (HEPA) filter.

[0026] The filter is removable from the body.

[0027] The cleaner according to the concept of the present disclosure may include: a body; a fan motor device configured to generate suction in the body; and a filter located in the body and configured to filter the air passing through the fan motor device. The fan motor device may include: an impeller configured to generate suction; a motor located at one side of the impeller for inhaling air and configured to provide power to the impeller; and a diffuser device, the diffuser device including: a radiation diffuser extending to guide the air discharged from the impeller in a radial direction from the rotation axis of the impeller; and an axial diffuser extending to discharge the air passing through the radiation diffuser toward one side of the impeller for inhaling air.

[0028] The radiative diffuser may include radiative vanes configured to diffuse air passing through the radiative diffuser, and the axial diffuser may include axial vanes configured to diffuse air passing through the axial diffuser.

[0029] The axial diffuser may include: a first axial diffuser extending from the radiation diffuser and including a first axial diffuser configured to diffuse air passing through the first axial diffuser; and a second axial diffuser extending from the first axial diffuser and including second axial blades configured to diffuse air passing through the second axial diffuser.

[0030] The radiation diffuser may include a first radiation diffuser extending in a direction in which the impeller discharges air; and a second radiation diffuser extending from the first radiation diffuser in a direction perpendicular to a rotation axis of the impeller.

[0031] The filter may surround the fan motor arrangement in a circumferential direction relative to the axis of rotation of the impeller.

[0032] Beneficial Effects

[0033] According to the concept of the present disclosure, since the diffuser has a portion extending from the rotation axis of the impeller in the radial direction, the length of the cleaner can be reduced in the rotation axis direction of the impeller.

[0034] According to the concept of the present disclosure, since the length of the cleaner in the rotation axis direction of the impeller is reduced, the weight of the cleaner can be reduced.

[0035] According to the concept of the present disclosure, since the diffuser has a portion extending from the rotation axis of the impeller in a radial direction, the efficiency of the cleaner may be improved.

[0036] According to the concept of the present disclosure, since the motor, impeller and diffuser are arranged in sequence in the direction in which the air passing through the dust collecting device is discharged to the outside of the cleaner, air with relatively low temperature passes through the motor, and the cleaner can improve the heat dissipation efficiency of the motor.

[0037] Effects that can be achieved by the concept of the present disclosure are not limited to the above-mentioned effects, and other effects that are not mentioned will be clearly understood from the following description by those having ordinary skill in the technical field to which the present disclosure pertains. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] These and / or other embodiments of the present disclosure will become apparent and more easily understood through the following description of the embodiments in conjunction with the accompanying drawings, in which: Figure 1 A cleaning device according to an embodiment of the present disclosure is shown.

[0039] Figure 2 yes Figure 1 An exploded view of some of the components of the cleaner is shown.

[0040] Figure 3 In a different Figure 2 The other direction is shown Figure 2 Some parts of the cleaner shown in .

[0041] Figure 4 Shown along Figure 1 A cross section taken along the line AA' shown in FIG.

[0042] Figure 5 yes Figure 4 An exploded view of some of the components of the body is shown.

[0043] Figure 6 The embodiment according to the present disclosure is shown Figure 5 The impeller cover and diffuser assembly are shown in their connected state.

[0044] Figure 7 yes Figure 4 Magnified view of region B is shown.

[0045] Figure 8 A coupling state of an impeller cover and a diffuser device according to an embodiment of the present disclosure is shown.

[0046] Fig. 9 Showing the application of the embodiment according to the present disclosure Figure 8 Cleaner for diffuser assembly shown.

[0047] Fig.10 A coupling state of an impeller cover and a diffuser device according to an embodiment of the present disclosure is shown.

[0048] Fig.11 Showing the application of the embodiment according to the present disclosure Fig.10 Cleaner for diffuser assembly shown.

[0049] Fig.12 A coupling state of an impeller cover and a diffuser device according to an embodiment of the present disclosure is shown.

[0050] Fig.13 Showing the application of the embodiment according to the present disclosure Fig.12 Cleaner for diffuser assembly shown.

[0051] Fig.14 A cleaner to which the diffuser device according to an embodiment of the present disclosure is applied is shown.

[0052] Fig.15 A coupling state of an impeller cover and a diffuser device according to an embodiment of the present disclosure is shown.

[0053] Fig.16 Showing the application of the embodiment according to the present disclosure Fig.15 Cleaner for diffuser assembly shown.

[0054] Fig.17 A cleaner to which the diffuser device according to an embodiment of the present disclosure is applied is shown. DETAILED DESCRIPTION

[0055] The various embodiments of the present disclosure and the terms used therein are not intended to limit the technical features described in the present disclosure to specific embodiments, but should be construed as including various modifications, equivalents, or replacements of the corresponding embodiments.

[0056] Regarding the description of the drawings, like reference numerals may be used for like or related components.

[0057] Singular forms of nouns corresponding to items may include one item or a plurality of items unless the context clearly indicates otherwise.

[0058] As used herein, each of the expressions "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "at least one of A, B or C" may include one or all possible combinations of the items listed with the corresponding expression within the expression.

[0059] The term "and / or" includes any and all combinations of one or more of the associated listed items.

[0060] It will be understood that the terms “first”, “second”, etc. may be used only to distinguish one component from another component, and are not intended to limit the corresponding components in other aspects (eg, importance or order).

[0061] Reference is made to one (e.g., first) component being "coupled" or "connected" to another (e.g., second) component, with or without the term "functionally" or "communicatively." When referred to, this means that one component may be connected to another component directly (e.g., by wire), wirelessly, or through a third component.

[0062] It will be understood that when used in this specification, the terms “include” and / or “comprises” indicate the presence of the stated features, figures, steps, operations, parts, components or a combination thereof, but do not exclude the presence or addition of one or more other features, figures, steps, operations, parts, components or a combination thereof.

[0063] The expression that one component is “connected,” “coupled,” “supported” or “contacting” another component includes the case where the components are directly “connected,” “coupled,” “supported” or “contacting” each other and the case where the components are indirectly “connected,” “coupled,” “supported” or “contacting” each other through a third component.

[0064] It will also be understood that when an element is referred to as being “on” or “over” another element, it can be directly on the other element or intervening elements may also be present.

[0065] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0066] Hereinafter, for convenience of description, although a stick type cleaner as a type of vacuum cleaner is described as an example, the configuration of the present disclosure is not limited to the stick type cleaner. For example, the configuration of the present disclosure can also be applied to a canister type cleaner, a robot cleaner, and the like.

[0067] Figure 1 A cleaning device according to an embodiment of the present disclosure is shown. Figure 2 yes Figure 1 An exploded view of some of the components of the cleaner shown in . Figure 3 In addition to Figure 2 In another direction other than the direction shown Figure 2 Some parts of the cleaner are shown. Figure 4 Shown along Figure 1 The cross section is taken along the line AA' shown in FIG.

[0068] See also Figures 1 to 4 The cleaner 1 may include a suction head 20 and a body 10 , wherein the suction head 20 is used to suck foreign matter such as dust present on the surface to be cleaned by suction force of air, and the body 10 collects the foreign matter sucked by the suction head 20 .

[0069] The cleaner 1 may include a connection pipe 30 connecting the suction head 20 and the body 10 .

[0070] The suction head 20 may include a suction brush (not shown) and suck air and foreign matter on the surface to be cleaned by closely contacting the surface to be cleaned. The suction head 20 is rotatably coupled to the connection pipe 30.

[0071] The connection pipe 30 may be formed as a pipe or hose having a certain rigidity, and may transfer the suction force generated by the motor 111 to the suction head 20 , and guide the air and foreign materials such as dust sucked through the suction head 20 to the body 10 .

[0072] The connection tube 30 may further include a tip connector 31. The tip connector 31 may separate the tip 20 from the body 10 or couple the tip 20 to the body 10.

[0073] The body 10 may include a fan motor device 100, a dust collecting device 60, a handle 40 and a battery 50, wherein the fan motor device 100 is configured to generate suction relative to the surface to be cleaned, the dust collecting device 60 is configured to separate dust from the inhaled air and collect the dust, the handle 40 can be grasped by the user, and the battery 50 is used to provide the power required to drive the components of the cleaner 1 (such as the motor 111, etc.).

[0074] The body 10 may include a body intake port 11a through which air and foreign matter are sucked into the body 10, and a body exhaust vent 12a through which air and foreign matter are discharged to the outside of the body 10. The body 10 may include a body intake pipe 11 communicating with one end of the connection pipe 30, and the body intake port 11a may be formed at one end of the body intake pipe 11 connected to one end of the connection pipe 30, among both ends of the body intake pipe 11. The air and foreign matter sucked by the suction head 20 may enter the interior of the body 10 through the connection pipe 30 and the body intake port 11a of the body intake pipe 11, although the embodiments of the present disclosure are not limited thereto. For example, the body 10 may not include a pipe structure such as the body intake pipe 11, and the body intake port 11a may be directly connected to the connection pipe 30.

[0075] The body 10 may include an exhaust housing 12 , and in an outer circumference of the exhaust housing 12 , a body exhaust port 12 a for exhausting air to the outside of the body 10 may be formed.

[0076] The body 10 may include a filter 15 for filtering foreign matter from the internal air of the body 10 before the air is discharged to the outside of the body 10 through the body exhaust port 12a. The filter 15 may be a high efficiency particulate air (HEPA) filter, although embodiments of the present disclosure are not limited thereto.

[0077] The body 10 may include a control device 17. The user may turn on / off the cleaner 1 or adjust the suction intensity by controlling a power button or the like provided in the control device 17.

[0078] In the body 10, a dust collecting device 60 may be provided. The dust collecting device 60 may be located upstream of the motor 111 along the flow direction of the internal air of the body 10 caused by the fan motor device 100 to separate foreign matter from the air entering the dust collecting device 60 and collect the separated foreign matter.

[0079] The dust collecting device 60 may include a dust collecting case 61 for collecting foreign matter separated from the air. The dust collecting case 61 may form the appearance of the dust collecting device 60. The dust collecting case 61 may form a dust collecting chamber 62 in which foreign matter separated from the air is collected. The dust collecting chamber 62 may be a space in which foreign matter separated by the first dust collecting device (first cyclone) 70 is collected, and the dust collecting chamber 62 may be referred to as a first dust collecting chamber 62. Similarly, the dust collecting case 61 forming the first dust collecting chamber 62 may be referred to as a first dust collecting case 61.

[0080] At one side of the first dust box 61, an inlet 63 may be formed, through which air enters the interior of the first dust chamber 62 from the suction head 20. The inlet 63 may be communicated with the body air inlet pipe 11, and the air entering the interior of the body 10 through the body air inlet port 11a may enter the interior of the dust collecting device 60 through the inlet 63. The inlet 63 may be referred to as a first cyclone separator inlet 63 because air and foreign matter enter the first cyclone separator 70.

[0081] The dust collecting device 60 may be connected to the body 10 in a manner detachable from other components of the body 10 .

[0082] The dust collecting device 60 may include a connection cover 66 for connecting the dust collecting device 60 to other components of the body 10 and a connection button 67 provided on one side of the connection cover 66 to detachably connect the dust collecting device 60 to other components of the body 10. More specifically, as Figures 1 to 4As shown, the connection cover 66 and the coupling button 67 may be located between the exhaust housing 12 and the first dust box 61 .

[0083] The coupling button 67 may be hook-coupled to one side of the body 10. By hook-coupling the coupling button 67 to one side of the body 10, the dust collecting device 60 may be installed in the body air intake port 11a.

[0084] In a case where a user presses the coupling button 67 of the dust collecting device 60 installed in the body 10 , the coupling button 67 may be released and the dust collecting device 60 may be separated from the body 10 .

[0085] After the dust collecting device 60 is separated from other parts of the body 10, the user can perform various operations, such as removing foreign matter collected in the dust collecting device 60, cleaning the dust collecting device 60, or repairing or replacing parts of the dust collecting device 60 or the body 10, although the embodiments of the present disclosure are not limited thereto. However, the dust collecting device 60 can be separated from the body 10 by various methods.

[0086] The dust collecting device 60 may include a dust box door 68 disposed in the first dust box 61. The dust box door 68 may be disposed at one side of the first dust box 61 to open or close the first dust chamber 62. In addition, the dust box door 68 may open or close the second dust chamber 81.

[0087] The dust box door 68 may be rotated relative to the first dust box 61 by a rotation shaft 68a. The dust box door 68 may include a door button 68b, and the door button 68b may be hooked to one side of the first dust box 61. When the door button 68b is hooked to one side of the first dust box 61, the dust box door 68 may remain in a closed state. In the case where the user presses the door button 68b when the dust box door 68 is in a closed state, the door button 68b may be released and the dust box door 68 may be opened.

[0088] Therefore, the user can easily remove foreign matter collected in the first dust collecting chamber 62 and the second dust collecting chamber 81 without separating the dust collecting device 60 from the body 10 or disassembling components of the dust collecting device 60 (such as the dust collecting box 61). However, the above description of the dust collecting box door 68 is merely an example of removing collected foreign matter from the dust collecting device 60 of the cleaner 1 according to the concept of the present disclosure, and the concept of the present disclosure is not limited thereto.

[0089] The dust collecting device 60 may include a first dust collecting device 70 and a second dust collecting device 80, wherein the first dust collecting device 70 is used to initially separate the air and foreign matter received through the first cyclone separator inlet 63, and the second dust collecting device 80 is used to receive the air from which foreign matter has been separated by the first dust collecting device 60 and has been discharged from the first dust collecting device 70 and to secondarily separate foreign matter from the air.

[0090] Each of the first dust collecting device 70 and the second dust collecting device 80 may be a cyclone type dust collecting device.

[0091] The cyclone dust collecting device can separate foreign matter by the centrifugal force generated by the rotating flow of air and foreign matter therein, wherein the inlet for air to enter can have a structure capable of guiding the rotating flow of air, such as a spiral inlet, a tangential inlet, a guide blade inlet, etc.

[0092] For example, the first dust collecting device 70 may include a first cyclone separator guide 71 for guiding the air and foreign matter received through the first cyclone separator inlet 63 to rotate and flow. In addition, the second dust collecting device 80 may include an inlet duct for guiding the air and foreign matter discharged from the first dust collecting device 70 to enter the second dust collecting device 80 and then rotate and flow.

[0093] The foreign matter initially separated by the first dust collecting device 70 may include foreign matter having a relatively large size. For example, in the first dust collecting device 70, the rotation radius of the air flowing by the first cyclone separator guide 71 may be relatively large, and the first dust collecting chamber 62 may also be correspondingly large.

[0094] The second dust collecting device 80 can separate foreign matter of relatively small size that is not sufficiently separated by the first dust collecting device 70 from the air.

[0095] The cyclone separator cover 90 may be located between the first dust collecting device 70 and the second dust collecting device 80. Air and foreign matter exhausted from the first dust collecting device 70 may pass through the cyclone separator cover 90 and then enter the second dust collecting device 80. In other words, the cyclone separator cover 90 may serve as an outlet of the first dust collecting device 70 and an inlet of the second dust collecting device 80.

[0096] Due to the suction force generated in the body 10 by the fan motor device 100, air and foreign matter may be sucked into the suction head 20. The air and dust sucked into the suction head 20 may pass through the connecting pipe 30 and the body air inlet port 11a, and be sucked into the inside of the body 10. The air entering the inside of the body 10 may enter the dust collecting device 60 via the inlet (first cyclone separator inlet) 63. The foreign matter entering the dust collecting device 60 may be primarily separated by the first dust collecting device 70 and collected in the first dust collecting chamber 62. The air from which the foreign matter has been separated by the first dust collecting device 70 may be discharged from the first dust collecting device 70 through the cyclone separator cover 90 and enter the second dust collecting device 80. The foreign matter entering the second dust collecting device 80 may be secondarily separated by the second dust collecting device 80 and collected in the second dust collecting chamber 81. The air from which the foreign matter has been separated by the second dust collecting device 80 may flow to the fan motor device 100, be filtered once more by the filter 15, and then be discharged to the outside of the body 10 through the body exhaust port 12a.

[0097] However, unlike the above description, in some embodiments of the present disclosure, the first dust collecting device 70 may not be a cyclonic dust collecting device. For example, the first dust collecting device as a dust collecting device for initially separating foreign matter from the air received from the suction head according to the concept of the present disclosure may be one of various types of dust collecting devices, such as a dust collecting device that separates foreign matter through a porous filter.

[0098] The cleaner 1 may include a fan motor filter 19 for filtering foreign matter from the air passing through the dust collecting device 60 when the air moves toward the fan motor device 100. The fan motor filter 19 may include a plurality of holes.

[0099] Figure 5 yes Figure 4 An exploded view of some of the components of the body is shown. Figure 6 Show Figure 5 The impeller cover and diffuser assembly are shown in their connected state. Figure 7 yes Figure 4 Magnified view of region B is shown.

[0100] Reference Figures 5 to 7 The body 10 may include a main body 101. The fan motor device 110 may be accommodated in the main body 101. The main body 101 may include a connecting vent 102 for discharging air to the filter 15. The connecting vent 102 may be formed along the circumference of the main body 101. The connecting vent 102 may guide the air passing through the fan motor device 100 to the filter 15.

[0101] The body 101 may include a body cover 106 detachably installed in the body 101. The body cover 106 may be detachably installed in the exhaust housing 12. The handle 40 and the control device 17 may be provided in the body cover 106. The body cover 106 may cover an open side of the body 101.

[0102] The exhaust housing 12 may be detachably connected to the body cover 106. The exhaust housing 12 may include a body exhaust port 12a, through which the air passing through the filter 15 is discharged to the outside of the body 10. The internal air of the cleaner 1 may be discharged to the outside of the cleaner 1 through the body exhaust port 12a. For example, the body exhaust port 12a may be in the shape of a slit. For example, the body exhaust port 12a may be in the shape of a hole. The body exhaust port 12a may be formed along the periphery of the exhaust housing 12.

[0103] The filter 15 may be accommodated in the exhaust housing 12. The filter 15 may filter foreign matter from the air exhausted from the connection vent 102 of the main body 101. The filter 15 may be located within the body 10 to filter the air passing through the fan motor device 100. The filter 15 may surround the fan motor device 100 in a circumferential direction relative to the rotation axis of the impeller 120.

[0104] At least a portion of the filter 15 may face the connection vent 102. The filter 15 may extend along the circumferential surface of the body 10 in which the connection vent 102 is formed. The filter 15 may extend from the connection vent 102 to the body exhaust port 12a. Since the filter 15 extends from the connection vent 102 to the body exhaust port 12a, the air entering the space between the exhaust housing 12 and the main body 101 through the connection vent 102 may be filtered by passing through the filter 15 and then discharged through the body exhaust port 12a. The filter 15 may surround the connection vent 102. The filter 15 may be substantially in the shape of a cylinder with both ends open.

[0105] The filter 15 may be detachably installed in the body 10. The filter 15 may be detachably installed in the main body 101 and / or the body cover 106. The user may manage and / or repair the filter 15 by separating the filter 15 from the body 10.

[0106] The exhaust housing 12 may cover the filter 15. The exhaust housing 12 may be detachably coupled to the body cover 106 and / or the main body 101. Since the exhaust housing 12 is detachably coupled to the body cover 106 and / or the main body 101, the user may easily replace the filter 15.

[0107] For example, the filter 15 may be a HEPA filter. The filter 15 may filter small-sized garbage, such as fine dust, from the air passing through the dust collecting device 60. The air from which the fine dust has been filtered by passing through the filter 15 may be discharged to the outside of the cleaner 1 through the body exhaust port 12a of the exhaust housing 12.

[0108] A fan motor device 100 for generating suction force required to suck in the garbage on the surface to be cleaned may be included in the body 10. The fan motor device 100 may be accommodated in the body 10. The fan motor device 100 may be configured to generate suction force in the body 10.

[0109] The fan motor device 100 may include a motor 111 and a circuit board 112 for controlling the motor 111. The circuit board 112 may be located at one side of the motor 11, which is opposite to the other side of the motor 111 connected to the impeller 120. The motor 111 and / or the circuit board 112 may be located at one side of the impeller 120 for sucking air.

[0110] The motor 111 may perform a function of converting electromagnetic force into mechanical rotational force. To perform this function, the motor 111 may include a stator having a coil, a rotor having magnetism and being rotatable by electromagnetic force, and a motor shaft 111a passing through the rotor and being rotatable. In the body 10, an impeller 120 connected to the motor 111 through the motor shaft 111a of the motor 111 may be provided.

[0111] The motor 111 may be located at one side of the impeller 120, which is opposite to the other side of the impeller 120 where the diffuser device 130 is located. The motor 111, the impeller 120, and the diffuser device 130 may be sequentially arranged in a direction in which the air is discharged to the outside of the cleaner 1 through the dust collecting device 60. Since the motor 111, the impeller 120, and the diffuser device 130 are sequentially arranged in a direction in which the air passing through the dust collecting device 60 is discharged to the outside of the cleaner 1, air having a relatively low temperature may pass through the motor 111, thereby improving the heat dissipation efficiency of the motor 111.

[0112] The body 10 may include a motor housing 105 in which a motor 111 and / or a circuit board 112 are mounted. The motor 111 and / or the circuit board 112 may be accommodated in the motor housing 105. The motor housing 105 may cover the motor 111 and / or the circuit board 112. The motor housing 105 may be accommodated in the main body 101. The motor housing 105 may be coupled to the main body 101.

[0113] The fan motor filter 19 may be disposed in the motor housing 105. The fan motor filter 19 may include a mesh portion. The motor housing 105 may include a fan motor inlet 105a through which air passing through the fan motor filter 19 enters the fan motor device 100. The fan motor inlet 105a may include a plurality of holes.

[0114] The fan motor device 100 may include an impeller 120 coupled to the motor 111 to generate an air flow. The motor 111 may provide power to the impeller 120. The impeller 120 may rotate by receiving power from the motor 111. The impeller 120 may be connected to a motor shaft 111a. The impeller 120 may receive power through the motor shaft 111a of the motor 111. According to the coupling of the impeller 120 with the motor shaft 111a, the impeller 120 may rotate together with the motor shaft 111a. The impeller 120 may generate suction.

[0115] The impeller 120 may include a hub 121 and a plurality of blades 122 protruding from the hub 121 and forming an air flow.

[0116] Hub 121 may have a shape whose cross section perpendicular to the rotation axis of impeller 120 increases toward the direction in which air entering body 10 is discharged. Impeller 120 may discharge air entering along the rotation axis direction of impeller 120 in a substantially radial direction of impeller 120.

[0117] The plurality of blades 122 may extend from the hub 121. The plurality of blades 122 may form an airflow together with the hub 121 according to the rotation of the impeller 120. The plurality of blades 122 may extend from a surface of the hub 121 into which air enters.

[0118] The fan motor device 100 may include an impeller cover 126 for covering the impeller 120. The impeller cover 126 may cover at least a portion of the motor 111. The impeller cover 126 may be coupled to one side of the motor 111. The impeller cover 126 may form a flow path for guiding air discharged from the impeller 120 together with the diffuser device 130.

[0119] The impeller cover 126 may include an impeller receiving portion 126a corresponding to the impeller 120 to receive the impeller 120. The impeller receiving portion 126a may have a shape whose cross section increases in the flow direction of air. According to this structure, the fan motor device 100 can improve efficiency.

[0120] The fan motor device 100 may include a diffuser device 130. The diffuser device 130 may guide air exhausted from the impeller 120. The diffuser device 130 may diffuse the air exhausted from the impeller 120. The diffuser device 130 may discharge air in a direction parallel to the rotation axis of the impeller 120. The diffuser device 130 may be substantially in the shape of a disk. The diffuser device 130 may extend in a radial direction from the rotation axis of the impeller 120.

[0121] Diffuser device 130 may include a radiation diffuser 131 extending to guide air exhausted from impeller 120 in a radial direction from the rotation axis of impeller 120 , and an axial diffuser 132 extending to guide air passing through radiation diffuser 131 to filter 15 .

[0122] The radiation diffuser 131 may extend substantially in a radial direction from the rotation axis of the impeller 120. Air entering the diffuser device 130 may be guided substantially in a radial direction relative to the rotation axis of the impeller 120 by the radiation diffuser 131. The radiation diffuser 131 may be formed such that a cross section perpendicular to the rotation axis of the impeller 120 increases from the rotation axis of the impeller 120 toward the radial direction.

[0123] The efficiency of the fan motor device 100 may depend on the vacuum pressure of the air passing through the diffuser device 130 at a constant airflow volume through the impeller 120. When the cross section of the radiation diffuser 131 perpendicular to the rotation axis of the impeller 120 increases from the rotation axis of the impeller 120 toward the radial direction, the flow rate of the air may decrease. According to the decrease in the flow rate of the air passing through the radiation diffuser 131, the vacuum pressure may increase. According to the increase in the vacuum pressure of the air passing through the radiation diffuser 131, the efficiency of the fan motor device 100 may be improved.

[0124] The radiation diffuser 131 may include a first radiation diffuser 131 a extending in a direction in which the impeller 120 discharges air, and a second radiation diffuser 131 b extending from the first radiation diffuser 131 a in a direction substantially perpendicular to a rotation axis of the impeller 120 .

[0125] Since diffuser device 130 includes first radiation diffuser 131a extending in the direction in which impeller 120 discharges air, turbulence generated by high-speed air discharged from impeller 120 can be reduced. Since turbulence generated by air discharged from impeller 120 is reduced, diffuser device 130 can reduce noise.

[0126] The portion of the impeller cover 126 adjacent to the outlet of the impeller 120 may extend in the direction of the air discharged from the impeller 120. The portion of the impeller cover 126 adjacent to the outlet of the impeller 120 may guide the air discharged from the impeller 120 together with the first radiation diffuser 131a to reduce the generation of turbulence. The diffuser inlet 136 may be formed by the diffuser device 130 and the impeller cover 126.

[0127] Impeller cover 126 may include a portion corresponding to second radiation diffuser 131b. Impeller cover 126 may have a portion extending substantially parallel to the direction of the rotation axis of impeller 120. Diffuser outlet 137 may be formed by diffuser device 130 and impeller cover 126. Diffuser outlet 137 may be formed by second radiation diffuser 131b and impeller cover 126.

[0128] The axial diffuser 132 may extend from the radiation diffuser 131. The axial diffuser 132 may extend from the second radiation diffuser 131b. The axial diffuser 132 may extend in a direction substantially parallel to the rotation axis of the impeller 120. The axial diffuser 132 may guide air in a direction opposite to the direction in which the impeller 120 discharges the air. The axial diffuser 132 may discharge the air passing through the radiation diffuser 131 toward the side of the impeller 120 for inhaling the air.

[0129] The diffuser device 130 may discharge air toward one side of the impeller 120 that sucks the air in. In the diffuser device 130, a diffuser inlet 136 through which air is received through the impeller 120 and a diffuser outlet 137 through which the air entering the diffuser inlet 136 is discharged may be formed toward substantially the same direction.

[0130] The diffuser outlet 137 may be adjacent to one side of the filter 15. The body exhaust port 12a may be adjacent to the other side of the filter 15 opposite to the one side of the filter 15. The filter 15 may extend downward from the diffuser outlet 137 to the body exhaust port 12a.

[0131] Since the axial diffuser 132 discharges air in a direction opposite to the direction in which the impeller 120 discharges air, it is possible to prevent the length of the body 10 from increasing in the direction of the rotation axis of the impeller 120. Since the cleaner 1 according to an embodiment of the present disclosure can reduce the length of the body 10 in the direction of the rotation axis of the impeller 120, the overall length and overall weight of the cleaner 1 can be reduced.

[0132] Figure 8 A coupling state of an impeller cover and a diffuser device according to an embodiment of the present disclosure is shown. Fig. 9 Show application Figure 8 Cleaner for diffuser assembly shown.

[0133] The following will refer to Figure 8 and Fig. 9 The diffuser device 230 of the fan motor device 200 of the cleaner 2 according to the embodiment of the present disclosure is described. Figure 8 and Fig. 9 In the following description of the components of the cleaning device 2 shown, Figures 1 to 7 The same components as those of the illustrated cleaner 1 will be given the same reference numerals, and a detailed description thereof will be omitted.

[0134] Reference Figure 8 and Fig. 9 The fan motor device 200 of the cleaner 2 according to an embodiment of the present disclosure may include a diffuser device 230. The diffuser device 230 may include a radiation diffuser 231 and an axial diffuser 132, wherein the radiation diffuser 231 extends to guide the air discharged from the impeller 120 in a radial direction from the rotation axis of the impeller 120; and the axial diffuser 132 extends to guide the air passing through the radiation diffuser 131 to the filter 15.

[0135] exist Fig. 9 In the radiation diffuser 231 of the diffuser device 230 shown, the Figure 7 The diffuser device 130 is shown as a second diffuser 131b. The diffuser device 231 of the diffuser device 230 according to an embodiment of the present disclosure may include a first diffuser 231a extending in the direction in which the impeller 120 discharges air. The axial diffuser 132 may extend from the first diffuser 231a.

[0136] Since the diffuser device 230 according to an embodiment of the present disclosure includes a first radiation diffuser 231a at which the radiation diffuser 231 extends along the flow direction of the air discharged from the impeller 120, and the diffuser device 230 omits a portion extending substantially perpendicular to the direction of the rotation axis of the impeller 120, the diffuser device 230 can more effectively reduce turbulence and / or noise caused by the air discharged from the impeller 120.

[0137] Fig.10 A coupling state of an impeller cover and a diffuser device according to an embodiment of the present disclosure is shown. Fig.11 Show application Fig.10 Cleaner for diffuser assembly shown.

[0138] The following will refer to Fig.10 and Fig.11 The diffuser device 330 of the fan motor device 300 of the cleaner 3 according to the embodiment of the present disclosure is described. Fig.10 and Fig.11 In the following description of the components of the cleaner 3 shown, Figures 1 to 7The same components as those of the illustrated cleaner 1 will be given the same reference numerals, and a detailed description thereof will be omitted.

[0139] Reference Fig.10 and Fig.11 The fan motor device 300 of the cleaner 3 according to an embodiment of the present disclosure may include a diffuser device 330. The diffuser device 330 may include a radiation diffuser 331 and an axial diffuser 332, wherein the radiation diffuser 331 extends to guide the air discharged from the impeller 120 in a radial direction from the rotation axis of the impeller 120, and the axial diffuser 332 extends to guide the air passing through the radiation diffuser 331 to the filter 15.

[0140] exist Fig.11 In the radiation diffuser 331 of the diffuser device 330 shown, the Figure 7 The second radiation diffuser 131b of the radiation diffuser 131 of the diffuser device 130 is shown. The radiation diffuser 331 of the diffuser device 330 according to an embodiment of the present disclosure may include a first radiation diffuser 331a extending in a direction in which the impeller 120 discharges air.

[0141] The axial diffuser 332 of the diffuser device 330 according to an embodiment of the present disclosure may extend from the first radiation diffuser 331a toward the filter 15. The axial diffuser 332 of the diffuser device 330 may extend such that the diffuser outlet 337 faces the filter 15. Figure 7 Compared to the axial diffuser 132 of the diffuser assembly 130 shown, Fig.11 The axial diffuser 332 of the diffuser device 330 shown may be tilted relative to the rotation axis direction of the impeller 120 .

[0142] Because the axial diffuser 332 extends from the radiative diffuser 331 toward the filter 15 , the diffuser device 330 according to an embodiment of the present disclosure may reduce turbulence and / or noise that may be generated from the filter 15 by air exhausted from the diffuser device 330 .

[0143] Fig.12 A coupling state of an impeller cover and a diffuser device according to an embodiment of the present disclosure is shown. Fig.13 Show application Fig.12 Cleaner for diffuser assembly shown.

[0144] The following will refer to Fig.12 and Fig.13 The diffuser device 430 of the fan motor device 400 of the cleaner 4 according to the embodiment of the present disclosure is described. Fig.12 and Fig.13 In the following description of the components of the cleaner 4 shown, Figures 1 to 7The same components as those of the illustrated cleaner 1 will be given the same reference numerals, and a detailed description thereof will be omitted.

[0145] Reference Fig.12 and Fig.13 , the fan motor device 400 of the cleaner 4 according to an embodiment of the present disclosure may include a diffuser device 430. The diffuser device 430 may include a radiation diffuser 131 and an axial diffuser 132, the radiation diffuser 131 extending to guide the air discharged from the impeller 120 in a radial direction from the rotation axis of the impeller 120, and the axial diffuser 132 extending to guide the air passing through the radiation diffuser 331 to the filter 15. The radiation diffuser 131 may include a first radiation diffuser 131a extending in a direction in which the impeller 120 discharges air and a second radiation diffuser 131b extending from the first radiation diffuser 131a in a direction substantially perpendicular to the rotation axis of the impeller 120.

[0146] The diffuser device 430 of the fan motor device 400 of the cleaner 4 according to the embodiment of the present disclosure may include an axial blade 433 disposed inside the axial diffuser 132. The axial blade 433 may diffuse the air passing through the axial diffuser 132. Since the axial blade 433 is disposed in the axial diffuser 132, the cleaner 4 according to the embodiment of the present disclosure may improve efficiency.

[0147] Fig.14 A cleaner to which the diffuser device according to an embodiment of the present disclosure is applied is shown.

[0148] The following will refer to Fig.14 The diffuser device 530 of the fan motor device 500 of the cleaner 5 according to the embodiment of the present disclosure is described. Fig.14 In the description of the components of the cleaner 5 shown, Figures 1 to 7 The cleaner 1 shown or Fig.13 The same components as those of the illustrated cleaner 4 will be given the same reference numerals, and a detailed description thereof will be omitted.

[0149] Reference Fig.14, the fan motor device 500 of the cleaner 5 according to an embodiment of the present disclosure may include a diffuser device 530. The diffuser device 530 may include a radiation diffuser 131 extending to guide the air discharged from the impeller 120 in a radial direction from the rotation axis of the impeller 120, and an axial diffuser 132 extending to guide the air passing through the radiation diffuser 331 to the filter 15. The radiation diffuser 131 may include a first radiation diffuser 131a extending in a direction in which the impeller 120 discharges air and a second radiation diffuser 131b extending from the first radiation diffuser 131a in a direction substantially perpendicular to the rotation axis of the impeller 120.

[0150] The diffuser device 530 of the fan motor device 500 of the cleaner 5 according to an embodiment of the present disclosure may include axial blades 433 disposed within the axial diffuser 132 .

[0151] The diffuser device 530 of the fan motor device 500 of the cleaner 5 according to an embodiment of the present disclosure may include a radiation blade 534 disposed inside the radiation diffuser 131. The radiation blade 534 may be located at the second radiation diffuser 131b of the radiation diffuser 131. The radiation blade 534 may diffuse the air passing through the radiation diffuser 131.

[0152] Since the axial blades 433 are provided in the axial diffuser 132 and the radiation blades 534 are provided in the radiation diffuser 131 , the cleaner 5 according to the embodiment of the present disclosure may improve efficiency.

[0153] Fig.15 A coupling state of an impeller cover and a diffuser device according to an embodiment of the present disclosure is shown. Fig.16 Show application Fig.15 Cleaner for diffuser assembly shown.

[0154] Will refer to Fig.15 and Fig.16 The diffuser device 630 of the fan motor device 600 of the cleaner 6 according to the embodiment of the present disclosure is described. Fig.15 and Fig.16 In the following description of the components of the cleaning device 6 shown, Figures 1 to 7 The cleaner 1 shown or Fig.13 The same components as those of the illustrated cleaner 4 will be given the same reference numerals, and a detailed description thereof will be omitted.

[0155] Reference Fig.15 and Fig.16The fan motor device 600 of the cleaner 6 according to an embodiment of the present disclosure may include a diffuser device 630. The diffuser device 630 may include a radiation diffuser 131 extending to guide the air discharged from the impeller 120 in a radial direction from the rotation axis of the impeller 120, and an axial diffuser 632 extending to guide the air passing through the radiation diffuser 331 to the filter 15. The radiation diffuser 131 may include a first radiation diffuser 131a extending in a direction in which the impeller 120 discharges air and a second radiation diffuser 131b extending from the first radiation diffuser 131a in a direction substantially perpendicular to the rotation axis of the impeller 120.

[0156] The axial diffuser 632 of the diffuser device 630 of the fan motor device 600 of the cleaner 6 according to an embodiment of the present disclosure may include a first axial diffuser 632a extending from the radiation diffuser 131 and a second axial diffuser 632b extending from the first axial diffuser 632a. The first axial diffuser 632a and the second axial diffuser 632b may extend in a direction parallel to the rotation axis direction of the impeller 120. The first axial diffuser 632a and the second axial diffuser 632b may be stacked according to the rotation axis direction of the impeller 120. The first axial diffuser 632a and the second axial diffuser 632b may be arranged in series along the rotation axis direction of the impeller 120.

[0157] The diffuser device 630 of the fan motor device 600 of the cleaner 6 according to an embodiment of the present disclosure may include an axial blade 633 disposed in the axial diffuser 632. The axial blade 633 may diffuse the air passing through the axial diffuser 632. The axial blade 633 may include a first axial blade 633a disposed in the first axial diffuser 632a and a second axial blade 633b disposed in the second axial diffuser 632b. The first axial blade 633a may diffuse the air passing through the first axial diffuser 632a. The second axial blade 633b may diffuse the air passing through the second axial diffuser 632b.

[0158] According to this configuration, since the axial diffuser 632 includes the first axial diffuser 632a and the second axial diffuser 632b, the first axial blades 633a are provided in the first axial diffuser 632a, and the second axial blades 633b are provided in the second axial diffuser 632b, the cleaner 6 according to the embodiment of the present disclosure can improve efficiency.

[0159] Fig.17 A cleaner to which the diffuser device according to an embodiment of the present disclosure is applied is shown.

[0160] The following will refer to Fig.17The diffuser device 730 of the fan motor device 700 of the cleaner 7 according to the embodiment of the present disclosure is described. Fig.17 In the description of the components of the cleaner 7 shown, Figures 1 to 7 The cleaner 1 shown, Fig.14 The cleaner 5 shown or Figure 6 The same components as those of the illustrated cleaner 6 will be given the same reference numerals, and a detailed description thereof will be omitted.

[0161] Reference Fig.17 , the fan motor device 700 of the cleaner 7 according to an embodiment of the present disclosure may include a diffuser device 730. The diffuser device 730 may include a radiation diffuser 131 and an axial diffuser 632, the radiation diffuser 131 extending to guide the air discharged from the impeller 120 in a radial direction from the rotation axis of the impeller 120, and the axial diffuser 632 extending to guide the air passing through the radiation diffuser 331 to the filter 15. The radiation diffuser 131 may include a first radiation diffuser 131a extending in a direction in which the impeller 120 discharges air and a second radiation diffuser 131b extending from the first radiation diffuser 131a in a direction substantially perpendicular to the rotation axis of the impeller 120. The axial diffuser 632 may include a first axial diffuser 632a extending from the radiation diffuser 131 and a second axial diffuser 632b extending from the first axial diffuser 632a.

[0162] The diffuser device 730 of the fan motor device 700 of the cleaner 7 according to an embodiment of the present disclosure may include a radiation blade 534 disposed inside the radiation diffuser 131. The radiation blade 534 may diffuse the air passing through the radiation diffuser 131.

[0163] The diffuser device 730 of the fan motor device 700 of the cleaner 7 according to the embodiment of the present disclosure may include an axial blade 633 disposed in the axial diffuser 632. The axial blade 633 may diffuse the air passing through the axial diffuser 632.

[0164] The axial blades 633 may include a first axial blade 633a disposed in the first axial diffuser 632a and a second axial blade 633b disposed in the second axial diffuser 632b. The first axial blade 633a may diffuse the air passing through the first axial diffuser 632a. The second axial blade 633b may diffuse the air passing through the second axial diffuser 632b.

[0165] According to this configuration, because the radiation blades 534 are arranged inside the radiation diffuser 131, the axial diffuser 632 includes a first axial diffuser 632a and a second axial diffuser 632b, the first axial blades 633a are arranged in the first axial diffuser 632a, and the second axial blades 633b are arranged in the second axial diffuser 632b, so the cleaner 7 according to an embodiment of the present disclosure can improve efficiency.

[0166] So far, specific embodiments have been shown and described, however, the present disclosure is not limited to these embodiments. It should be understood that various modifications can be made by ordinary technicians in the technical field to which the present disclosure belongs without departing from the gist of the technical concept of the present disclosure, and the gist of the technical concept of the present disclosure is defined in the attached claims.

Claims

1. Cleaner, including: a body, including a body exhaust port; A filter capable of being installed in the body; as well as A fan motor assembly comprising: an impeller configured to rotate to generate suction within the body, a motor configured to provide power to rotate the impeller, and Diffuser device, comprising: a radiating diffuser extending in a radial direction from the axis of rotation of the impeller, and an axial diffuser extending from said radial diffuser, Wherein, the fan motor device is configured so that: when the filter is installed in the body, Rotation of the impeller by power provided by the motor causes air to pass through the fan motor device and be discharged from the impeller, then be guided by the radial diffuser from the rotation axis of the impeller in the radial direction, then be guided by the axial diffuser to the filter to be filtered, and then be discharged through the body exhaust port.

2. The cleaning device according to claim 1, wherein: The radiation diffuser includes radiation blades configured to diffuse air directed by the radiation diffuser.

3. The cleaning device according to claim 1, wherein: The axial diffuser includes axial blades configured to diffuse air directed by the axial diffuser.

4. The cleaning device according to claim 1, wherein: The axial diffuser comprises: a first axial diffuser extending from the radiative diffuser, and A second axial diffuser extends from the first axial diffuser.

5. The cleaning device according to claim 4, wherein: The first axial diffuser includes first axial blades configured to diffuse air directed by the first axial diffuser, and The second axial diffuser includes second axial blades configured to diffuse air directed by the second axial diffuser.

6. The cleaning device according to claim 1, wherein: The radiation diffuser includes a first radiation diffuser extending in a direction in which the impeller discharges air.

7. The cleaning device according to claim 6, wherein: The radiation diffuser includes a second radiation diffuser extending from the first radiation diffuser in a direction perpendicular to the rotational axis of the impeller.

8. The cleaning device according to claim 1, wherein: When the filter is installed in the body, the axial diffuser is configured to discharge air guided by the axial diffuser in a direction toward the filter.

9. The cleaning device according to claim 1, wherein: The motor is located on a side of the impeller opposite the diffuser arrangement for drawing in air.

10. The cleaning device according to claim 1, wherein: With the filter mounted in the body, the filter surrounds the fan motor device in a circumferential direction relative to the rotation axis of the impeller.

11. The cleaning device according to claim 1, wherein: The diffuser device is configured to discharge air toward a side of the impeller for drawing in air.

12. The cleaning device according to claim 1, wherein: The diffuser device comprises: an outlet for exhausting air directed by the axial diffuser, the outlet being positioned adjacent a first side of the filter when the filter is installed in the body, and With the filter installed in the body, the body exhaust port is positioned adjacent a second side of the filter opposite the first side of the filter.

13. The cleaning device according to claim 1, wherein: The diffuser device comprises: an outlet for discharging the air guided by the axial diffuser, and With the filter mounted within the body, the filter extends from the outlet of the diffuser assembly to the body exhaust.

14. The cleaning device according to claim 1, wherein: The filter is a high efficiency particulate air (HEPA) filter.

15. The cleaning device according to claim 1, wherein: The filter is removable from the body.

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