KR20220016660A - Air Cleaner - Google Patents

Abstract

The present invention relates to an air purifier. According to an embodiment of the present invention, the air purifier comprises: a first blower which has a first inlet and a first outlet, and in which a first fan is disposed therein; a second blower which is spaced apart from the first blower, and in which a second inlet and a second outlet are formed, and a second fan is disposed therein; a filter which is disposed on at least one of the first blower and the second blower to filter out foreign substances contained in the incoming air; a partition body which is disposed between the first blower and the second blower and has a space therein; and a speaker which is disposed inside the partition body. Accordingly, the amplified voice is transferred through the partition body to the outside of the air purifier to increase the discrimination of the output voice.

Description

Air Cleaner {Air Cleaner}

The present invention relates to an air purifier, and more particularly, to a voice guidance speaker disposed in the air purifier.

An air purifier is a device that sucks in polluted air from a room, undergoes a series of cleaning actions, and then supplies the purified air to the room.

In order to provide the user with information about the operating state of the air purifier or indoor air quality, a speaker may be disposed in the air purifier, and the speaker should be disposed at an appropriate location to increase the user's ability to identify the output voice.

However, it was difficult to find an appropriate arrangement position for the sound generated from the speaker to be output to the outside of the air purifier with high discrimination power, and there was a problem in that the resolution of the generated sound was lowered due to the flow noise or the fan driving sound.

Korea Patent No. 10-1994906 discloses a method of providing information on the operating state of the air purifier through voice by mounting a Bluetooth speaker in the air purifier case, but the voice generated from the speaker is There was a problem in that the resolution was lowered by the

Korean Patent No. 10-1872669 discloses a structure in which a Bluetooth speaker is mounted in a case forming the exterior, but there is no structure to amplify the sound generated from the speaker, so the discrimination power for the voice output through the speaker is lowered. There was a problem.

Korean Patent Registration 10-1994906 Korean Patent Registration 10-1872669

SUMMARY OF THE INVENTION An object of the present invention is to provide an air purifier with improved discrimination of voice output through a speaker.

Another object of the present invention is to provide an air purifier in which a voice output through a speaker is amplified.

Another object of the present invention is to provide an air purifier in which a speaker is disposed at a position not affected by the flow.

Another object of the present invention is to provide a compact air purifier by utilizing the conventional wasted space.

Another object of the present invention is to provide an air purifier in which sound is evenly output in all directions.

Another object of the present invention is to provide an air purifier that stably supports a speaker.

Another object of the present invention is to provide an air purifier in which various substrates including a speaker are integrated.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, an air purifier according to an embodiment of the present invention includes: a first blower having a first inlet and a first outlet, and having a first fan disposed therein; a second blower that is spaced apart from the first blower, a second inlet and a second outlet are formed, and a second fan is disposed therein; a filter disposed on at least one of the first blower and the second blower to filter out foreign substances contained in the incoming air; a partition body disposed between the first blowing device and the second blowing device and having a space therein; and a speaker disposed inside the compartment body, so that the voice output through the speaker is amplified by the compartment body, thereby increasing the discrimination power of the voice output.

The air purifier according to an embodiment of the present invention may further include a support body disposed in the compartment body and on which the speaker is seated, so that the speaker may be stably supported by the support body.

The support body includes: an inner plate on which the speaker is seated; an outer plate extending outwardly from the inner plate; It may include a lower plate extending downward from the inner plate, so that a plurality of substrates can be integrated and arranged.

The support body may be formed with a support protrusion that protrudes outwardly from the support body and is connected to the partition body, and may be connected to the partition body through the support protrusion.

A rim disposed to surround the support body and connected to the partition body may be disposed on the outside of the support body, so that the support body may be stably supported by the rim.

A first fence may be formed in the support body to surround the outer wall of the speaker, so that movement of the speaker in the support body may be restricted.

A holder protruding from the support body to support one side of the speaker may be formed on the support body, and the speaker may be fixed by the holder.

The first substrate electrically connected to the speaker may be seated on the support body, and thus the speaker may be connected stably.

A second fence may be formed on the support body to surround the outer wall of the first substrate, so that the second fence may be stably fixed to the support body.

A first upper protrusion protruding to support the upper side of the first substrate may be formed on the support body, thereby limiting movement of the upper side of the first substrate.

An eaves extending to cover at least a portion of one side of the first substrate may be formed on the support body, thereby limiting movement of the first substrate upward.

A lower protrusion may be formed on the support body to support the lower side of the first substrate, thereby limiting movement of the lower side of the first substrate.

In the support body, a wire groove through which the wire connected to the first substrate passes may be formed, thereby preventing bad connection of the wire.

A second substrate electrically connected to each of the plurality of sensors providing air quality information may be seated on the support body, so that each of the plurality of sensors may be controlled by the second substrate.

A third substrate electrically connected to at least one of the first and second fans may be seated on the support body, so that the first and second fans may be controlled by the third substrate.

The third substrate may be provided with an insertion protrusion to pass through the support body, so that it may be stably fixed to the support body.

A fourth substrate for receiving the radio signal transmitted from the outside of the first and second blower devices may be seated on the support body, so that wireless communication with the outside of the air purifier may be performed through the fourth substrate.

A second upper protrusion may be formed on the support body to support the upper side of the fourth substrate, so that the fourth substrate may be stably fixed to the support body.

The first substrate may be disposed on the inner plate, the second substrate may be disposed on one side of the lower plate, and the third substrate may be disposed on the other side of the lower plate. A plurality of substrates may be integrated and fixed.

The partition body includes: a stem connected to the first blower and extending outward toward the upper side; It may include a loop connected to the stem and extending outward toward the lower side, so that the sound generated from the speaker may be spread outward.

The details of other embodiments are included in the detailed description and drawings.

According to the air purifier of the present invention, there are one or more of the following effects.

First, there is an advantage of increasing the discrimination of the output voice by transmitting the amplified voice through the compartment body to the outside of the air purifier.

Second, by arranging the speaker in the compartment body that connects the blower between the blowers arranged vertically, there is also an advantage in that the resolution of the sound output from the speaker can be prevented from being lowered by the flow.

Third, there is an advantage of utilizing wasted space by arranging the speaker inside the hollow compartment body that was blocking the flow between the blowers spaced up and down.

Fourth, by arranging the speaker between the blowers spaced up and down, there is also an advantage that the sound generated from the speaker can be evenly spread up and down.

Fifth, through the structure of the support body for stably supporting the speaker, there is also an advantage that the speaker can be stably fixed in the compartment body.

Sixth, through the structural design of the support body, a plurality of substrates are fixed to a single support body, so that the device for controlling the air purifier is highly integrated.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of an air purifier according to an embodiment of the present invention.
2 is a longitudinal cross-sectional view of an air purifier according to an embodiment of the present invention.
3 is a front view of a compartment body according to an embodiment of the present invention.
4 is a view for explaining a coupling relationship between the partition body and the blower according to an embodiment of the present invention.
5 is a view for explaining the coupling structure of the substrate assembly and the rim according to the embodiment of the present invention.
6 is a perspective view of the structure shown in FIG. 5 from above.
7 (a) is a perspective view of a support body according to an embodiment of the present invention.
7 (b) is a perspective view of a substrate assembly according to an embodiment of the present invention.
8 is a view for explaining the coupling structure of the substrate assembly and the compartment body according to the embodiment of the present invention.
9 is a view showing the structure before and after the speaker and the first PCB are coupled to the support body according to the embodiment of the present invention, respectively.
10 is a perspective view from the lower side of the first PCB coupled to the support body according to the embodiment of the present invention.
11 is a view showing the structure before and after the second PCB is coupled to the support body according to the embodiment of the present invention, respectively.
12 is a view showing the structure before and after the third PCB is coupled to the support body according to the embodiment of the present invention.
13 is a diagram illustrating a structure in which a third PCB and a fourth PCB are coupled to a support body according to an embodiment of the present invention.
14 is a diagram illustrating a propagation path of a sound generated by a speaker according to an embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, the present invention will be described with reference to the drawings for explaining an air purifier according to embodiments of the present invention.

1 and 2, the overall configuration of the air purifier 10 will be described first. 1 is a perspective view of the air purifier 10 viewed from above, and FIG. 2 is a longitudinal sectional view showing the internal structure of the air purifier 10 .

The air purifier 10 may include the blowers 100 and 200 for generating an air flow and a circulator 300 for changing the discharge direction of the air flow generated by the blowers 100 and 200 . The blowers 100 and 200 may include a lower blower 100 for discharging clean air to a lower region and an upper blower 200 for discharging clean air to an upper region.

The lower blower 100 and the upper blower 200 may be disposed in a vertical direction, and the upper blower 200 may be disposed spaced apart from the upper side of the lower blower 100 .

The air purifier 10 may include cases 110 and 210 that form an exterior. The cases 110 and 210 may include a lower case 110 forming an outer appearance of the lower blower 100 and an upper case 210 forming an outer appearance of the upper blower 200 .

The overall outer shape of the lower case 110 may be a cylindrical shape, and the diameter of the upper part of the lower case 110 may be smaller than the diameter of the lower part.

A first suction port 112 through which air is sucked is formed in the lower case 110 , and the first suction port 112 may be referred to as an air inlet 112 through which external air is introduced into the lower case 110 . A plurality of first suction ports 112 may be formed along the circumferential surface of the lower case 110 , and may be formed to be opened up and down. A first discharge port 152 through which the introduced air is discharged to the outside may be formed on the upper portion of the lower case 110 , and the first discharge port 152 may be formed to open upward. The first outlet 152 may be called an air outlet 152 through which air inside the lower case 110 is discharged to the outside.

The plurality of first suction ports 112 may be uniformly formed in the circumferential direction of the lower case 110 so that air can be sucked in all radial directions with respect to the lower case 110 .

A first discharge cover 150 forming a first discharge port 152 may be disposed on the upper portion of the lower blower 100 , and the first discharge cover 150 determines the flow direction of the upwardly flowing air. It may be called the discharge body 150 that guides in the discharge direction of the.

The first filter 120 is detachably disposed inside the lower case 110 . The first filter 120 may have a cylindrical shape, and may filter foreign substances contained in the air introduced through the outer circumferential surface of the first filter 120 .

The first filter frame 122 may provide a space in which the first filter 120 is detachable, and may be disposed outside the first filter 120 . The first filter 120 may be supported by the first filter frame 122 , and the first filter frame 122 may define a mounting space of the first filter 120 .

A first fan housing 130 may be disposed above the first filter 120 , and a first fan 132 rotatably disposed in the first fan housing 130 , and the first fan 132 . A first fan motor 134 for providing power to the .

A circular first housing suction hole 130a through which air that has passed through the first filter 120 is introduced may be formed on the lower side of the first fan housing 130 , and blown by the first fan 132 on the upper side. A first housing discharge hole 130b through which the exhausted air flows may be formed. As the first fan 132 , a four-flow fan may be used, and the air blown by the first fan 132 may flow upward and outward in the radial direction.

The first fan 132 includes a first hub 132a to which the rotation shaft of the first fan motor 134 is coupled, a first shroud 132b spaced apart from the first hub 132a, and a first It may include a plurality of first blades 132c disposed between the hub 132a and the first shroud 132b. The first fan motor 134 may be coupled to the upper side of the first fan 132 .

A first blowing guide 140 for guiding the air blown by the first fan 132 upward may be disposed above the first fan 132 .

The first blowing guide 140 may form an annular first blowing path 140a through which the air blown by the first fan 132 flows.

The first blower guide 140 has a first blower body 142 of a cylindrical shape forming an exterior, and is disposed in the center of the first blower body 142 and has a bowl shape into which the first fan motor 134 is inserted. A plurality of first guide vanes ( 146) may be included.

The plurality of first guide vanes 146 may guide the air discharged from the first fan 132 to the first air flow passage 140a upward. Each of the plurality of first guide vanes 146 may have a curved rib shape which is disposed to stand up close to the vertical axis direction. The first guide vanes 146 may extend from the outer circumferential surface of the first motor cover 144 to the inner circumferential surface of the first blowing body 142, and a plurality of first guide vanes 146 may be disposed to be spaced apart from each other.

The rotation shaft of the first fan motor 134 may extend downward from the first fan motor 134 , and may pass through the bottom of the first motor cover 144 and be connected to the first hub 132a.

A base 180 in contact with the ground may be disposed on a lower side of the lower case 110 . The base 180 may be positioned to be spaced downward from the lower end of the lower case 110 , and a base suction part 114 through which external air is introduced into the space between the lower case 110 and the base 180 is provided. can be formed.

A partition body 160 is disposed between the lower blower 100 and the upper blower 200 to limit the upward flow of the air discharged from the discharge body 150 . By the partition body 160 , the upper blower 200 may be positioned to be spaced apart from the upper side of the lower blower 100 .

The compartment body 160 may extend along the air outlet 152 . At this time, the phrase “extending along the air outlet” may be interpreted to mean extending in a direction parallel to the direction in which the air outlet 152 is formed. Accordingly, the compartment body 160 may extend parallel to the direction in which the air outlet 152 is formed at a position spaced apart from the upper side of the air outlet 152 .

The compartment body 160 may block the air discharged from the lower blower 100 from flowing into the second suction port 212 of the upper blower 200 .

The compartment body 160 may include a stem 162 connected to the lower case 110 and extending upwardly, and a loop 164 disposed above the stem 162 . The stem 162 may extend upwardly and roundly, and the loop 164 may extend downwardly. The stem 162 may extend upward from the discharge body 150 , and at least a portion of the stem 162 may be formed as a curved portion having a predetermined radius of curvature.

On the lower side of the partition body 160, the discharge body 150 of the lower blower 100 is disposed, and on the upper side of the partition body 160, the connecting body 170 on which the upper blower 200 is seated is disposed. can

The connecting body 170 may have an annular shape, and may be rounded and extended upwardly from the inner circumferential surface toward the outer circumferential surface.

The overall outer shape of the upper case 210 may be cylindrical, and the diameter of the upper part of the upper case 210 may be smaller than the diameter of the lower part. A second suction port 212 through which external air is sucked is formed in the upper case 210 . The second inlet 212 may be formed to be opened in the vertical direction, and a plurality may be formed to be spaced apart in the circumferential direction.

The second filter 220 may be disposed on the second filter frame 222 in the upper blower 200 as well, and the details thereof are described in the first filter 120 and the first filter frame 122 described above. It can be described in the same way as the contents. The first filter 120 and the second filter 220 may be named "filter" in the same way, and the first filter frame 122 and the second filter frame 222 may be named "filter frame" in the same way. can

The upper blower 200 includes a second fan 232 disposed above the second filter 220 to blow the introduced air, and a second fan motor 234 for applying power to the second fan 232 . and a second fan housing 230 accommodating the second fan 232 . The second fan 232, the second fan motor 234, and the second fan housing 230 include the first fan 132, the first fan motor 134, and the first fan housing ( 130) and has the same configuration and similar form, and can perform the same function. The second fan 232 may be a four-flow fan, and, like the first fan 132 , may include a hub 232a, a shroud 232b, and a plurality of blades 232c.

The upper blower 200 may further include a second blower guide 240 disposed above the second fan 232 to guide the air blown from the second fan 232 upward. The second blowing guide 240 is a second blowing body 242 having a cylindrical shape forming an external appearance, and is disposed in the center of the second blowing body 242 and has a bowl shape into which the second fan motor 234 is inserted. A plurality of second guide vanes 246 spaced apart from the second motor cover 244 in the circumferential direction on the second air flow passage 240a formed between the second blowing body 242 and the second motor cover 244 . ) may be included. The second blowing body 242, the second motor cover 244, and the plurality of second guide vanes 246, the first blowing body 142, the first motor cover 144, the plurality of The first guide vane 146 has the same configuration and similar shape as that of the first guide vane 146 , and may perform the same function.

A second discharge cover 250 forming a second discharge port 252 opened in an upward direction may be disposed on the upper part of the upper blower 200 . The second discharge port 252 may be formed in an annular shape, and a second discharge grill 258 formed in a radial shape may be disposed on the second discharge cover 250 .

The second discharge cover 250 includes a second cover wall 254 forming a cylindrical rim, a guide base 256 disposed inside the second cover wall 254, and a second cover wall 254 formed from the guide base 256. The second cover wall 254 may include a second discharge grill 258 extending in a radial direction.

The upper blower 200 is rotatably disposed on the guide base 256 and moves along the movement guider 260 supporting the circulator 300, and the movement guider 260 to adjust the inclination angle of the circulator 300. It may include a shifting device (mover, 270).

The movement guide 260 may be disposed above the guide base 256 , and may be rotatably disposed on the guide base 256 .

The guide base 256 may have a disk shape, and a second discharge grill 258 may be disposed around it. A space in which the moving gear 262 and the gear motor 263 are disposed may be formed inside the movement guider 260 .

The moving device 270 may be moved along the movement guide 260 while being coupled to the circulator 300 to change the inclination angle of the circulator 300 . The moving device 270 may include a guide plate 272 convexly formed toward the moving guide 260 , and a gear rail 274 meshing with the moving gear 262 may be formed on the guide plate 272 . have.

Since the moving device 270 is coupled to the lower surface of the circulator 300 , a portion of the suction port 310a formed under the circulator 300 may be shielded.

An external gear 264 may be formed on one side of the movement guide 260 along the circumferential surface, and a pinion gear 266 which rotates in engagement with the external gear 264 on one side of the second discharge grill 258 and the pinion gear A motor 268 to rotate 266 may be disposed.

In the circulator 300, the moving gear 262 and the gear rail 274 are engaged and rotated, so that the inclination angle with respect to the vertical axis may be changed, and the external gear 264 and the pinion gear 266 are meshed and rotated. Due to this, it can be rotated in the circumferential direction using the upper and lower shaft as the rotation axis.

The circulator 300 may be disposed on the upper side of the upper blower 200 to change the wind direction of the air discharged from the upper blower 200 to the upper side. The circulator 300 may be disposed parallel to or inclined to the plane formed by the second outlet 252 .

An annular third discharge port 320a may be formed in the circulator 300 , and the air discharged from the upper blower 200 and introduced into the circulator 300 is discharged to the outside through the third discharge port 320a . can be

A display 390 displaying operation information of the air purifier 10 may be disposed above the circulator 300 . The display 390 may be disposed radially inside the third outlet 320a and may form an upper surface of the circulator 300 .

The circulator 300 includes a lower cover 310 that forms a lower exterior and is connected to the upper blower 200, and an upper cover 320 that forms an upper exterior and is disposed on the upper side of the lower cover 310. and a third fan 330 for flowing air into the circulator 300 , a fan motor 340 for rotating the third fan 330 , and a motor cover 350 for accommodating the fan motor 340 , , a third fan housing 370 accommodating the third fan 330 , and an outer cover 380 disposed outside the upper cover 320 .

Hereinafter, with reference to FIG. 3, the partition body 160 will be described. 3 shows a form in which the compartment body 160 is viewed in perspective from the front.

The compartment body 160 is connected to the lower blower 100, and the stem 162 extending outward toward the upper side; It may include a loop 164 connected to the stem 162 and extending outward toward the lower side.

The stem 162 may be disposed on the upper side of the lower blower 100 , and the loop 164 may be disposed on the upper side of the stem 162 .

The stem 162 and the loop 164 may have a shape symmetrical to each other with respect to a plane perpendicular to the vertical axis. Accordingly, the shape of the loop 164 may be a form in which the stem 162 is turned upside down.

The stem 162 includes a lower body 162a connected to the lower blower 100 and extending upwardly; It may include a lower frame (162b) extending in the radially outward direction from the lower body (162a).

The lower body 162a may extend to be curved outward toward the upper side, and may have a cylindrical shape as a whole. The lower end of the lower body 162a may be connected to the upper portion of the discharge body 150, and the air discharge port 152 may be formed along the outer periphery of the lower body 162a.

The lower frame 162b may extend radially outward from the upper end of the lower body 162a, and may have an annular overall appearance. The lower frame 162b may be spaced apart from the upper side of the discharge body 150 , and may face the air discharge port 152 up and down. The air outlet 152 may be formed in an annular shape along the direction in which the lower frame 162b extends.

The roof 164 is connected to the upper blower 200, and the upper body 164a extending downward; It may include an upper frame (164b) extending in a radially outward direction from the upper body (164a).

The upper body 164a may extend to be curved outward toward the lower side, and may have a cylindrical shape as a whole. The upper end of the upper body 164a may be connected to the lower portion of the connecting body 170, and the connecting body 170 may be an annular shape protruding outward of the upper body 164a and extending in the circumferential direction.

The upper frame 164b may extend radially outwardly from the lower end of the upper body 164b, and may have an annular overall appearance. The upper frame 164b may be spaced apart from the lower side of the connecting body 170 , and may face the lower surface of the connecting body 170 . The connecting body 170 may be formed in an annular shape along the direction in which the upper frame 164b extends, and may have the same inner and outer diameters as those of the upper frame 164b.

The upper frame 164b and the lower frame 162b may be connected to each other, and the inner and outer diameters of the upper frame 164b and the lower frame 162b may be the same. The upper frame 164b and the lower frame 162b may be connected to each other while having a gap G that is vertically spaced apart from each other.

Air discharged from the discharge body 150 of the lower blower 100 may flow upward along the first path (X). The air flowing along the first path (X) may come into contact with the lower surface of the lower frame (162b) and may collide with the lower frame (162b) to change the flow direction to the second path (X'). Accordingly, the air, which has been flowing upwards, may be discharged to the outside of the air purifier 10 by changing the flow direction in a radially outward direction. Therefore, the compartment body 160 not only amplifies the sound output from the speaker 30 to be described later, but also prevents the air discharged from the discharge body 150 from being re-suctioned into the upper blower 200 "shielding body" It may be named as ".

Hereinafter, a coupling relationship between the partition body 160 and the blowers 100 and 200 will be described with reference to FIG. 4 . Figure 4 (a) shows the form in which the discharge body 150, the stem 162 and the loop 164 are connected, Figure 4 (b) shows the form in which the discharge body 150 and the stem 162 are connected. did it

The discharge body 150 includes an outer body 151 forming an outer circumferential surface of the discharge body 150; an inner body 154 spaced apart from the inner side of the outer body 151; A discharge guider 153 disposed between the outer body 151 and the inner body 154 may be included.

The overall outer shape of the outer body 151 may be a cylindrical shape, and the overall outer shape of the inner body 154 may be a cylindrical shape having a diameter smaller than that of the outer body 151 . The outer body 151 and the inner body 154 may be cylindrical in a concentric circle relationship, and a discharge guider 153 forming an air discharge port 152 is disposed between the outer body 151 and the inner body 154. can

The air discharged from the lower blower 100 may be discharged to the outside of the lower blower 100 through the discharge guider 153, and may flow between the outer body 151 and the inner body 154. .

The stem 162 may be connected to the upper portion of the inner body 154 and extend upward. The outer peripheral surface of the stem 162 may be positioned radially inward than the discharge guider 153, and the air discharged from the discharge guider 153 reaches the lower surface of the lower frame 162b along the outer peripheral surface of the lower body 162a. can do.

The loop 164 may include a connecting ring 164c that constitutes an upper portion of the upper body 164a and is connected to the connecting body 170 . The overall outer shape of the connecting ring 164c may be annular, and may have an inner diameter equal to the inner diameter of the connecting body 170 . The connecting body 170 may be connected to the partition body 160 through a connecting ring 164c on the upper side of the loop 164 . The connecting body 170 may have an annular shape in which the inner part is connected to the connecting ring 164c.

Inside the compartment body 160, a hollow amplification space (S) may be formed. The amplification space (S) may be understood as a cylindrical space formed inside the stem 162 and the loop 164, and may be understood as a voice transmission region extending in the vertical direction.

Since the stem 162 and the loop 164 prevent the air discharged from the discharge body 150 from flowing into the compartment body 160, there is no flowing air in the amplification space (S). Therefore, the sound wave generated in the amplification space S does not receive resistance due to the flow flow. In addition, since the sound wave has a property of propagating faster in the solid than in the gas, the sound wave generated in the amplification space (S) quickly moves to the outside of the air purifier 10 along the walls of the stem 162 and the roof 164 . is output

Hereinafter, a coupling structure between the substrate assembly 20 and the rim 80 will be described with reference to FIGS. 5 and 6 . 5 is a perspective view of the substrate assembly 20 coupled to the rim 80 , and FIG. 6 is a perspective view of the substrate assembly 20 coupled to the rim 80 , viewed from above.

The board assembly 20 may be disposed in the amplification space S of the partition body 160 , and the speaker 30 may be disposed above the board assembly 20 . An upper portion of the substrate assembly 20 may have a disk shape, and a rim 80 supporting the substrate assembly 20 may be disposed outside the disk-shaped upper portion of the substrate assembly 20 .

The overall outer shape of the rim 80 may be annular, and the inner diameter of the rim 80 may be larger than the outer diameter of the substrate assembly 20 . The board assembly 20 may be disposed inside the rim 80 , and the board assembly 20 may be disposed to protrude upward from the inside of the rim 80 .

The rim 80 includes an inner rim 81 in contact with the outer circumferential surface of the substrate assembly 20; a middle rim 82 in contact with the outer peripheral surface of the inner rim 81; It may include an outer rim 83 in contact with the outer peripheral surface of the middle rim 82 .

The overall appearance of the inner rim 81 , the middle rim 82 , and the outer rim 83 may be annular, and the rim 80 disposed on the outside may have larger inner and outer diameters. The inner rim 81, the middle rim 82, and the outer rim 83 may be in a concentric relationship, and may be integrally formed with each other.

The rim 80 may be disposed between the lower frame 162b and the upper frame 164b, and may have the same shape as the lower frame 162b and the upper frame 164b. The rim 80 may be pressed and fixed between the lower frame 162b and the upper frame 164b, and may be connected through a separate fastening member. The rim 80 may be disposed within the gap G between the lower frame 162b and the upper frame 164b.

The inner rim 81 may have an inner hole 81a opened up and down, and a plurality of inner holes 81a may be formed to be spaced apart from each other in the circumferential direction. The inner rim 81 may be connected to the lower frame 162b and the upper frame 164b through a predetermined fastening member (not shown) penetrating the inner hole 81a.

A first boss 83a protruding upward may be formed on the outer rim 83 , and a plurality of first bosses 83a may be formed to be spaced apart from each other in the circumferential direction. A second boss 83c protruding upward may be formed on the outer rim 83 , and the second boss 83c may be formed in a radially inward direction than the first boss 83a. The second boss 83c may protrude upward from the upper surface of the boss plate 83b in which the outer rim 83 extends to the cut portion of the middle rim 82 . The outer rim 83 may be connected to the lower frame 162b and the upper frame 164b through a predetermined fastening member (not shown) penetrating the first boss 83a and the second boss 83c.

The middle rim 82 may be press-fixed between the lower frame 162b and the upper frame 164b by a predetermined fastening member (not shown) passing through the second boss 83c.

The support protrusion 421 protruding outwardly may be formed in the substrate assembly 20 , and two support protrusions 421 may be formed in pairs to face each other. The support protrusion 421 may be inserted into the cut-out portion of the inner rim 81 to protrude downward, and may extend upwardly and downwardly to be curvedly supported by the inner rim 81 .

Hereinafter, a structure in which various substrates 30 , 40 , 50 , 60 , and 70 are coupled to the support body 400 will be described with reference to FIG. 7 . Figure 7 (a) shows the shape of the support body 400 before the substrates 30, 40, 50, 60, 70 are coupled, Figure 7 (b) is the substrate (30, 40, 50, 60, 70) ) shows the shape of the substrate assembly 20 after it is combined.

The support body 400 may be understood as an injection-molded product formed integrally, and may be understood as a support to which various substrates 30 , 40 , 50 , 60 , and 70 are fixed. The support body 400 is disposed in the compartment body 160, the speaker 30 may be seated.

The support body 400 may have a 'T' shape in its longitudinal section, and may be an assembly of a disk-shaped structure forming an upper portion and a plate-shaped structure forming a lower portion.

The support body 400 includes an inner plate 410 on which the speaker 30 is seated; an outer plate 420 extending outwardly from the inner plate 410; a lower plate 430 extending downward from the inner plate 410; An inner wall 440 extending upwardly from the inner plate 410 and connecting the inner plate 410 and the outer plate 420 may be included.

The overall appearance of the inner plate 410 may be at least a part of an open disk shape, and may provide a space in which the speaker 30 is seated.

The inner wall 440 may be formed to protrude upward from the outer peripheral surface of the inner plate 410 , and may extend in the circumferential direction of the inner plate 410 . The inner wall 440 includes a first wall 440a extending in the circumferential direction of the inner plate 410; a second wall 440b extending radially outward from one side of the first wall 440a; A third wall 440c extending in a radially outward direction from the other side of the first wall 440a may be included.

The overall shape of the first wall 440a may be arc-shaped, and may be formed in pairs to face each other on both sides of the inner plate 410 .

The second wall 440b and the third wall 440c may extend radially outward from both ends of the first wall 440a, respectively, and each of a pair of first walls 440a formed to face each other. can be extended from The second wall 440b may be understood as a wall formed adjacent to the first substrate 40 , and the third wall 440c may be understood as a wall formed adjacent to the fourth substrate 70 . .

The outer plate 420 may extend radially outward from the upper end of the inner wall 440 , and may be formed outside the inner plate 410 . The overall appearance of the outer plate 420 may be at least partially open annular, and may extend in the circumferential direction to surround the outside of the inner plate 410 . The inner diameter of the outer plate 420 may be greater than or equal to the outer diameter of the inner plate 410 , and the inner wall 440 may extend vertically from the inner plate 410 toward the outer plate 420 .

The support protrusion 421 may be formed to protrude outward from the outer circumferential surface of the outer plate 420 . The support protrusions 421 may be formed in pairs symmetrically on both sides of the outer plate 420 , and may be formed to face each other.

The lower plate 430 may extend downward from the lower surface of the inner plate 410 and may have a rectangular plate shape as a whole. The lower plate 430 may extend vertically from the inner plate 410 and may extend downward from the center of the inner plate 410 .

Referring to FIG. 7( b ), the substrate assembly 20 includes a speaker 30 , a first substrate 40 , a second substrate 50 , a third substrate 60 , and a fourth substrate on the support body 400 . 70 can be understood as a mounted assembly.

The first substrate 40 may be electrically connected to the speaker 30 , and may control a voice guide signal output from the speaker 30 . The first substrate 40 may be called “voice guide PCB” in that it controls the speaker 30 . The outer shape of the first substrate 40 may be a square plate shape, and may be disposed on the same plane as the speaker 30 .

The speaker 30 may be disposed above the inner plate 410 , and may be disposed at the center of the inner plate 410 .

The first substrate 40 may be disposed above the inner plate 410 , and may be disposed outside the speaker 30 . At least a portion of the first substrate 40 may be positioned between the second walls 440b formed to face each other, and the remaining portion may be positioned between the first walls 440a formed to face each other.

The second substrate 50 may be electrically connected to each of a plurality of sensors that provide information on air quality, and the blowing fans 132 , 232 , 332 , the display 390 and the discharge based on the information provided from each sensor. Driving of the grill 153 and the circulator 300 may be controlled. The second substrate 50 may be called a “control PCB” in that it controls the driving of the components 132 , 232 , 332 , 390 , 153 , and 300 of the air purifier 10 .

Although not shown in the drawings, the sensors connected to the second substrate 50 are a dust sensor, a CO2 sensor, a gas sensor, a differential pressure sensor, and a UWB disposed between the filter frames 122 and 222 and the fan housings 130 and 230 . It may include a sensor.

The second substrate 50 may be disposed on the first surface 430a of the lower plate 430 , and may be disposed at the center of the lower plate 430 . An upper portion of the second substrate 50 may be in contact with a lower surface of the inner plate 410 , and both sides of the second substrate 50 may be positioned below the inner plate 410 .

The third substrate 60 may be electrically connected to at least one of the first fan 132 , the second fan 232 , and the third fan 332 , and the blowing fans 132 , 232 , 332 . It can be connected in parallel with all of them. The third substrate 60 may supply power necessary for driving the blowing fans 132 , 232 , and 332 , and may be supplied from an external power source (outlet) through a plug (not shown) exposed to the outside of the air purifier 10 . The transferred power may be supplied to the blowing fans 132 , 232 , and 332 . The third substrate 60 may be electrically connected to the fan motors 134 , 234 , and 334 through electric wires (not shown), and the power supplied from the external power source is the third substrate 60 and the fan motor 134 . , 234 , and 334 may be sequentially supplied to the blowing fans 132 , 232 , and 332 . The third substrate 60 may also be electrically connected to a motor and a display 390 for rotating the discharge grill 153 and the circulator 300 , and may supply power to the motor and the display 390 . The third substrate 60 may be referred to as a “power PCB” in that it transmits power received from the outside.

The third substrate 60 may be disposed on the second surface 430b of the lower plate 430 , and may be disposed at the center of the lower plate 430 . The upper portion of the third substrate 60 may be in contact with the lower surface of the inner plate 410 , and both sides of the third substrate 60 may be positioned below the outer plate 420 .

The fourth substrate 70 may receive a radio wave signal transmitted from the outside of the blowers 100 and 200 , and may be electrically connected to the speaker 30 and the first substrate 40 . The fourth substrate 70 may be referred to as a “communication PCB” in that it transmits a wireless signal received from the outside to the speaker 30 and the first substrate 40 .

The fourth substrate 70 may be disposed above the inner plate 410 , and may be disposed outside the speaker 30 . At least a portion of the fourth substrate 70 may be positioned between the second walls 440b formed to face each other, and the remaining portion may be positioned between the first walls 440a formed to face each other. The fourth substrate 70 may be disposed to protrude upward from the upper surface of the inner plate 410 , and may be disposed at an intermediate height between the inner plate 410 and the outer plate 420 .

Hereinafter, a structure in which the substrate assembly 20 is fixed to the compartment body 160 will be described with reference to FIG. 8 . 8 is an enlarged view of a portion where the substrate assembly 20 and the partition body 160 are connected.

The substrate assembly 20 may be fixed to the partition body 160 by connecting the support body 400 to the stem 162 through the support protrusion 421 .

The support protrusion 421 includes a first support portion 421a extending downward from the outer plate 420; a first rounding portion 421b extending downwardly from the lower portion of the first supporting portion 421a to be curved; a second support portion 421c extending upwardly from the rounding portion 421b; A second rounding part 421d extending upwardly from the upper portion of the second support part 421c to be curved may be included.

The first support part 421a and the second support part 421c may extend vertically in the vertical direction, and the first rounding part 421b may connect the first support part 421a and the second support part 421c in a radial direction. It can extend downward with a convex shape. The second rounding part 421d may extend a predetermined length in a radially outward direction from the upper end of the second support part 421c and then extend to be bent upward.

A fixing projection insertion groove 421s into which the fixing projection 162e of the stem 162 is inserted may be formed in the support protrusion 421 . The fixing protrusion insertion groove 421s may be formed by cutting a portion of the second support portion 421c and the second rounding portion 421d. The substrate assembly 20 may be fixed to the partition body 160 by inserting the fixing protrusion 162e into the fixing protrusion insertion groove 421s.

The stem 162 includes a seating rim 162c extending upwardly from the inner end of the lower frame 162b; A stamboss (162d) spaced apart from the radially outward direction of the seating rim (162c) and protruding upwardly; a fixing protrusion (162e) protruding upwardly between the seating rim (162c) and the stem boss (162d); It extends radially outward from the seating rim 162c and may include a plurality of reinforcing ribs 162f formed to be spaced apart from the fixing protrusion 162e in the circumferential direction.

The seating rim 162c may have a cylindrical shape extending in the circumferential direction, and may come into contact with the lower surface of the outer plate 420 when the substrate assembly 20 is connected to the stem 162 . The stem boss 162d may connect the stem 162 and the loop 164 to each other.

Hereinafter, a structure in which the speaker 30 and the first substrate 40 are mounted to the support body 400 will be described with reference to FIGS. 9 and 10 . 9 (a) is an enlarged view of a portion of the support body 400 before the speaker 30 and the first substrate 40 are mounted, and FIG. 9 (b) is the speaker 30 and the first substrate 40. This is an enlarged view of a part of the board assembly 20 after the mounting, and FIG. 10 is a view of the board assembly 20 after the speaker 30 and the first board 40 are mounted from the lower side.

The inner plate 410 may include a first fence 411 protruding upward from the inner plate 410 . The first fence 411 may vertically protrude upward from the upper surface of the inner plate 410 , and may have a 'L' shape in overall appearance. The first fence 411 may include one side fence 411a supporting one side of the speaker 30 and the other side fence 411b supporting the other side of the speaker 30 . The one side fence 411a and the other side fence 411b may be formed to face each other, and may have the same shape and be symmetrically disposed. Two side fences 411a may be formed in pairs to face each other, and only one side fence 411b may be formed.

The inner plate 410 may include a holder 412 protruding upward from the inner plate 410 . The holder 412 may vertically protrude upward from the upper surface of the inner plate 410, and may have the shape of a pig's nose as a whole. The holder 412 may include a ring-shaped holder side wall 412a and a holder groove 412b that is opened and formed inside the holder side wall 412a. The holder side wall 412a may be understood as a cylindrical outer wall protruding upward from the upper surface of the inner plate 410 , and the protruding height may be different in the circumferential direction. Two holder grooves 412b may be formed in pairs to be spaced apart from each other, and may have the same shape and be formed side by side. The holder 412 may be formed inside the first fence 411 and may be formed in the center of the one side fence 411a and the other side fence 411b.

The inner plate 410 may include an upper boss 413 protruding upward from the inner plate 410 . The upper boss 413 may vertically protrude upward from the upper surface of the inner plate 410 , and may have a cylindrical shape as a whole. The upper boss 413 may include a first upper boss 413a formed between a pair of one side fence 411a and a second upper boss 413b formed outside the other side fence 411b. An inside of the upper boss 413 may be opened, and a predetermined fastening member (not shown) may be connected to the upper boss 413 .

The inner plate 410 may include a second fence 414 protruding upward from the inner plate 410 . The second fence 414 may vertically protrude upward from the upper surface of the inner plate 410 , and may have a 'L' shape in overall appearance. The second fence 414 includes a fence inner wall 414a for supporting one surface of the first substrate 40, a fence outer wall 414b for supporting the other surface of the first substrate 40, a fence inner wall 414a, and It may include a fence protrusion 414c respectively protruding from the fence outer wall 414b. The fence inner wall 414a and the fence outer wall 414b may extend in a direction perpendicular to each other, and the fence protrusion 414c may vertically protrude from the lower portion of each of the fence inner wall 414a and the fence outer wall 414b. Two second fences 414 may be formed in pairs, and the fence outer walls 414b of each of the pair of second fences 414 may be formed to face each other. The second fence 414 may be formed at a position spaced apart from the first fence 411 in a radially outward direction, and may be formed outside the speaker 30 .

The inner plate 410 may include a first upper protrusion 415 protruding upward of the inner plate 410 . The first upper protrusion 415 may vertically protrude upward from the upper surface of the inner plate 410 , and may have a 'L' shape in overall appearance. The first upper protrusion 415 has a first protrusion hook 415a extending upwardly from the upper surface of the inner plate 410, and a first protrusion hook inclined radially outward from the upper end of the first protrusion post 415a. (415b). The first upper protrusion 415 may be formed between the pair of second fences 414 , and may be positioned outside the first fence 411 to be formed outside the speaker 30 .

The inner plate 410 may include an upper rib 418 protruding upward from the inner plate 410 . The upper rib 418 may vertically protrude upward from the upper surface of the inner plate 410 , and the overall appearance may be a 'ㅁ' shape. The upper rib 418 may be formed in a square closed loop shape to form an insertion groove 418s on the inside.

A wire groove 422 through which an electric wire (not shown) connected to the first substrate 40 passes may be formed in the outer plate 420 . The wire groove 422 may be formed at an end of the outer plate 420 and may be formed to have a surface opposite to the second wall 440b. The wire groove 422 may mean an area opened in the vertical direction on the outer plate 420 , and may be understood as an empty space having a quadrangular prism shape.

The support body 400 may be formed with a substrate receiving portion 410s opened in the vertical direction. The substrate accommodating part 410s may be understood as a cut-out portion having a rectangular shape in the inner plate 410 , and may be understood as an accommodating space in which the first substrate 40 is seated. The substrate receiving portion 410s may be formed outside the inner plate 410 , at least a portion is formed between the pair of second walls 440b , and the remaining portion is formed between the pair of first walls 440a . can be formed in

The schematic shape of the substrate accommodating part 410s may be a square column shape, and may be formed inside the second fence 414 . The substrate accommodating part 410s may include a first trough 410s1 extending inwardly formed below the first upper protrusion 415, and the first trough 410s1 has a quadrangular prism shape and a substrate accommodating part The open area of (410s) can be extended. The substrate accommodating part 410s may include a second trough 410s2 that extends upward and is formed on the lower side of the outer plate 420, and the second trough 410s2 has a rectangular prism shape and the substrate accommodating part 410s. ) can be expanded.

Even when the first substrate 40 is disposed, the first trough 410s1 and the second trough 410s2 may be in an open state, and the sound generated from the speaker 30 is the first trough 410s1 and the second trough 410s1. It may propagate through the valley 410s2.

Referring to FIG. 9B , the speaker 30 and the first substrate 40 may be disposed side by side on the upper side of the inner plate 410 .

The first substrate 40 may be disposed outside the second fence 414 , and movement may be restricted by the second fence 414 . The first substrate 40 may be in contact with the fence protrusion 414c of the second fence 414 .

The outer plate 420, the eaves 423 extending in the radially inward direction may be formed. The eaves 423 may extend to cover at least a portion of the upper surface of the first substrate 40a and may cover an edge portion of the first substrate 40 .

The first substrate 40 may be restricted from moving in the radial inward direction by the second fence 414 and may be restricted from moving in the upward direction by the eaves 423 .

The first upper surface 40a of the substrate may be a flat plane, and may be located below the outer plate 420 . A substrate groove 41 that is opened in a vertical direction may be formed at an edge of the first substrate 40 , and the substrate groove 41 may be formed through the entire thickness of the first substrate 40 .

The speaker 30 includes a speaker body 31 disposed inside the first fence 411; a battery 32 connected to the speaker body 31 and supplying power to the speaker body 31; an audio output unit 33 for generating an audio signal; a first speaker rib 34 extending outwardly from the speaker body 31; a second speaker rib (35) extending outwardly from the battery (32); A third speaker fastening hole 36 formed in the speaker body 31 may be included.

The overall outer shape of the speaker body 31 may be a square pillar shape, and the corners of the speaker body 31 may be in contact with the first fence 411 , respectively.

The overall external shape of the battery 32 may be a square pillar shape, and may extend from the speaker body 31 to the outside of the other side fence 411b. The volume of the battery 32 may be smaller than the volume of the speaker body 31 , and may be disposed outside the first fence 411 .

The audio output unit 33 may be formed in the center of the speaker body 31 . The overall appearance of the audio output unit 33 may be circular, and the audio output unit 33 may be formed to be recessed downward from the upper surface of the speaker body 31 . The audio output unit 33 may be formed to extend in the vertical direction, and may extend to the lower surface of the speaker body 31 . A groove (not shown) corresponding to the shape of the holder 412 protruding from the inner plate 410 may be formed on the lower surface of the speaker body 31 corresponding to the position where the audio output unit 33 is formed, and the speaker ( When the 30) is seated on the inner plate 410 , the holder 412 may be inserted into the groove formed on the lower surface of the speaker body 31 .

The overall appearance of the first speaker rib 34 may be a horseshoe shape, and a first speaker fastening hole 34s into which a predetermined fastening member is inserted may be formed. The first speaker rib 34 may be in contact with the upper surface of the first upper boss 413a and may be supported by the first upper boss 413a. The first speaker fastening hole 34s may communicate with the opening area of the first upper boss 413a, and the first speaker fastening hole 34s may be fixed to the first upper boss 413a through a predetermined fastening member. can The first speaker rib 34 may be formed by being drawn into the inside of the speaker body 31 so that at least a part thereof is positioned between the pair of one side fences 411a.

The overall outer shape of the second speaker rib 35 may be a horseshoe shape, and a second speaker fastening hole 35s into which a predetermined fastening member is inserted may be formed. The second speaker rib 35 may contact the upper surface of the second upper boss 413b and may be supported by the second upper boss 413b. The second speaker fastening hole 35s may communicate with the opening area of the second upper boss 413b, and the second speaker fastening hole 35s may be fixed to the second upper boss 413b through a predetermined fastening member. can The second speaker rib 35 may be formed to protrude outward from the outer surface of the battery 32 .

The third speaker fastening hole 36 may be formed by opening downward from the upper surface of the speaker body 31 , and may be formed through the speaker body 31 . The third speaker fastening hole 35 may be formed between the one side fence 411a and the first speaker rib 34, and a predetermined fastening member passes through the third speaker fastening hole 35 to the speaker 30 may be fixed to the support body 400 .

Referring to FIG. 10 , the first substrate 40 may be seated on the support body 400 to partially protrude downward of the inner plate 410 .

The first substrate 40 may be disposed such that a part faces the pair of first walls 440a and the rest faces the pair of second walls 440b.

The circuits, chips, and inverters printed on the first substrate 40 may be formed to protrude downward, and may be formed on the lower surface of the first substrate 40b. The circuit, chip, and inverter may be understood as sub-structures of the first substrate component 42 , and the first substrate component 42 may be formed to protrude below the substrate receiving part 410s.

The first substrate 40 may partially protrude downward of the inner plate 410 so that the lower surface 40b of the first substrate may be supported by the lower protrusions 424 and 441 .

The lower protrusions 424 and 441 include a first lower protrusion 424 protruding downward from the lower surface of the outer plate 420; It may include a second lower protrusion 441 protruding inward from the inner wall 440 .

The first lower protrusion 424 may be formed to be bent downward from the lower surface of the outer plate 420 , and a plurality of first lower protrusions 424 may be formed to be spaced apart from each other. The first lower protrusion 424 includes a first lower protrusion wall 424a connected to the outer plate 420; It may include a second lower protrusion wall 424b extending in a radially inward direction from the first lower protruding wall 424a. The first lower protruding wall 424a and the second lower protruding wall 424b may extend in a vertical direction, and the first lower protruding wall 424a is the side surface of the first substrate 40 and the second lower protruding wall The walls 424b may support the first substrate lower surface 40b, respectively.

The second lower protrusion 441 may extend in a radially inward direction from the second wall 440b and may extend from each of a pair of second walls 440b formed to face each other. The pair of second lower protrusions 441 may be formed to face each other, and may support the lower surface 40b of the first substrate.

The first lower protrusion 424 and the second lower protrusion 441 may extend in a direction perpendicular to each other, and the substrate groove 41 is formed between the first lower protrusion 424 and the second lower protrusion 441 . can be

Hereinafter, a structure in which the second substrate 50 is supported by the support body 400 will be described with reference to FIG. 11 . Fig. 11 (a) shows the support body 400 before the second substrate 50 is mounted, and Fig. 11 (b) shows the support body 400 after the second substrate 50 is mounted.

The second substrate 50 may be supported on one side 430a of the lower plate 430 . The lower plate 430 includes a first barrier 431 protruding outward from the upper portion of one side 430a; a second barrier 432 protruding outward from the lower portion of the side surface 430a; a first lower boss 433 protruding outward from one side 430a; a second lower boss 434 spaced apart from the first lower boss 433 and protruding to the outside of one side 430a; a third lower boss 435 formed outside the first lower boss 433; A fourth lower boss 436 formed outside the second lower boss 434 may be included.

The overall appearance of the first barrier 431 may be a square column shape, and may be formed on the outer upper portion of the lower plate 430 . The first barriers 431 may be formed in pairs to be radially spaced apart, and inner surfaces of the pair of first barriers 431 may be formed to face each other. The second substrate 50 may be disposed between the pair of first barriers 431 and supported by inner surfaces of the pair of first barriers 431 .

The overall appearance of the second barrier 432 may be a square column shape, and may be formed in the lower center of the lower plate 430 . The second barrier 432 may be formed at a position crossing the upper and lower central axes of the support body 400 , and may support the lower side of the second substrate 50 .

The first lower boss 433 includes: a first seating protrusion 433a having a hollow formed therein; A first boss rib 433b formed to be bent outside the first seating protrusion 433a may be included. A hole may be formed in the center of the first seating protrusion 433a, and may protrude outward from one side surface 430a. The first boss rib 433b may be formed by being bent in a 'L' shape on the outside of the first seating protrusion 433a, and supports the inner surfaces of the first seating protrusion 433a and the second substrate 50 . can do. Two first lower bosses 433 may be formed in pairs so as to be diagonally spaced apart when one side 430a is viewed from the front, and a first boss rib 433b formed in each has a first seating protrusion. It may be formed outside the (433a).

The second lower boss 434 includes a second seating protrusion 434a having a hollow shape; A second boss rib 434b formed to be bent outside the second seating protrusion 434a may be included. A hole may be formed in the center of the second seating protrusion 434a, and the size of the second seating protrusion 434a may be smaller than the size of the first seating protrusion 433a. The second boss rib 434b may be formed in a 'ㅁ' shape on the outside of the second seating protrusion 434a and may have a square closed loop cross-sectional shape. The second boss rib 434b may support the second seating protrusion 434a and the inner surface of the second substrate 50 . Two second lower bosses 434 may be formed in pairs so as to be diagonally spaced apart when one side 430a is viewed from the front, and the second boss ribs 434b formed in each are the second seating bosses. It may be formed on the outside of the 434a.

The third lower boss 435 may be formed to protrude outwardly from one side surface 430a, and when viewed from the front side, two lower bosses 435 may be formed in pairs so as to be diagonally spaced apart. The third lower boss 435 includes a third fastening hole 435a having a hollow formed therein; a third boss rib 435b formed to be bent outside the third fastening hole 435a; A third barrier 435c protruding outward from one side surface 430a may be included. The third fastening hole 435a may be a hole into which a predetermined fastening member is inserted, and the third boss rib 435b may be formed by bending an 'L' shape on the outside of the third fastening hole 435a. have. The third barrier 435c may be formed to surround the third fastening hole 435a and the third boss rib 435b, and may have a rectangular closed loop cross-sectional shape. The third fastening hole 435a and the third boss rib 435b may be formed to protrude outward from the third barrier 435c. A pair of third lower bosses 435 may be formed outside of the first lower bosses 433 at each formation position.

The fourth lower boss 436 may be formed to protrude outwardly from one side 430a, and when viewed from the front, two fourth lower bosses 436 may be formed in pairs so as to be diagonally spaced apart. The fourth lower boss 436 includes a fourth fastening hole 436a having a hollow formed therein; a fourth boss rib 435b bent outside the fourth fastening hole 436a; A fourth barrier 436c protruding outward from one side surface 430a may be included. The fourth fastening hole 436a may be a hole into which a predetermined fastening member is inserted, and the fourth boss rib 436b may be formed by bending an 'L' shape on the outside of the fourth fastening hole 436a. have. The fourth barrier 436c may be formed to surround the fourth fastening hole 436a and the fourth boss rib 436b, and may have a rectangular closed loop cross-sectional shape. The fourth fastening hole 436a and the fourth boss rib 436b may be formed to protrude outward from the fourth barrier 436c. A pair of fourth lower bosses 436 may be formed outside of the second lower bosses 434 at respective forming positions.

In the lower plate 430 , a lower plate groove 430s opened from one side 430a to the other side 430b may be formed. The lower plate grooves 430s may be opened in the shape of a square column, and two may be formed in pairs to be spaced apart from each other in the radial direction. Each of the pair of lower plate grooves 430s may be formed so as to be in contact with the inner surface of the pair of first barriers 431, and a first lower protrusion 433 and a second lower protrusion 434 spaced up and down are spaced apart from each other. ) can be formed between Each of the pair of lower plate grooves 430s may be formed between a third lower protrusion 435 and a fourth lower protrusion 436 that are vertically spaced apart from each other.

Referring to FIG. 11B , the second substrate 50 may be mounted on the lower plate 430 such that the second substrate component 52 including a printed circuit, a chip, and an inverter is exposed to the outside.

The second substrate component 52 may be disposed on the outer surface 50a of the second substrate 50 , and the second substrate 50 has a lower surface (not shown) opposite to the outer surface 50a. It may be mounted to be in contact with the plate 430 .

The second substrate 50 may be fixed to the lower plate 430 through the fastening member 51 passing through the third fastening hole 435a. Two fastening members 51 may pass through each of the pair of third fastening holes 435a.

The second substrate 50 may be seated in the inner space of the first barrier 431 and the second barrier 432 , and may be supported by the first barrier 431 and the second barrier 432 . The second substrate 50 may be spaced outwardly from one side 430a by the lower bosses 433, 434, 435, and 436 protruding outward from one side 430a, and the second substrate 50 ) and a gap may be formed between the side surface 430a. In the gap between the second substrate 50 and one side 430a, a portion of the third substrate 60 to be described later may be inserted, and a portion of the third substrate 60 passes through the lower plate groove 430s. It may protrude to the outside of one side 430a.

Hereinafter, a structure in which the third substrate 60 is supported by the support body 400 will be described with reference to FIG. 12 . Fig. 12 (a) shows the support body 400 before the third substrate 60 is mounted, and Fig. 12 (b) shows the support body 400 after the third substrate 60 is mounted. .

The third substrate 60 may be seated on the other side 430b opposite to the one side 430a of the lower plate 430 described with reference to FIG. 11 .

When viewed from the other side 430b, the first barrier 431 and the second barrier 432 may have a shape recessed inward from the other side 430b, and the third lower protrusion 435 and the fourth lower The protrusion 436 may have a shape recessed inward from the other side surface 430b.

The lower plate 430 includes a fifth fastening hole 437 protruding outward from the other side 430b; a sixth fastening hole 438 protruding outward at a position spaced apart from the fifth fastening hole 437; A seventh fastening hole 439 protruding outward from the lower portion of the other side 430b may be included.

Referring to FIG. 12B , the third substrate 60 may be mounted on the lower plate 430 such that the third substrate component 62 including a printed circuit, a chip, and an inverter is exposed to the outside.

The third substrate component 62 may be disposed on the outer surface 60a of the third substrate 60, and the third substrate 60 has a lower surface (not shown) opposite to the outer surface 60a. It may be mounted to be in contact with the plate 430 .

The third substrate 60 may be fixed to the lower plate 430 through a fastening member 61 penetrating the other side 430b of the lower plate 430 . The fastening member 61 may pass through a pair of two fastening members 61 spaced apart by an oblique line.

When the third substrate 60 is seated on the lower plate 430 , the third substrate 60 may cover a portion of the other side surface 430b of the lower plate 430 . The lower plate 430 may include a first reminder 430c, a second reminder 430d, and a third reminder 430e that are not covered by the third substrate 60 .

The first reminder 430c may mean an outer partial area including an outer end among the other side surfaces 430b of the lower plate 430 .

The second reminder 430d may mean an outer partial area including an outer end among the other side surfaces 430b of the lower plate 430, and is an opposite area symmetrical to the first reminder 430c. can mean

The third reminder 430e may mean a partial area of the lower side including the lower end of the other side 430b of the lower plate 430 , and it means a portion protruding downward from the lower plate 430 . can do.

The fifth fastening hole 437 may be formed in the first reminder 430c, the sixth fastening hole 438 may be formed in the second reminder 430d, and the seventh fastening hole 439 ) may be formed in the third reminder 430e. The fifth fastening hole 437 and the sixth fastening hole 438 may be formed at the outer end of the lower plate 430 .

The third substrate 60 includes a first fastening part 63 protruding outward from the third substrate 60; a second fastening part 64 protruding in a direction opposite to the first fastening part 63; A third fastening part 65 protruding downward from the third substrate 60 may be included.

The first fastening portion 63 includes: a first wing 63a protruding from the third substrate 60 toward the first reminder 430c; It may include a first hole (63b) formed in the first wing (63a). The first wing 63a may extend to the outer end of the other side 430c, and the first hole 63b may be formed at a position corresponding to the fifth fastening hole 437.

The second fastening portion 64 includes a second wing 64a protruding from the third substrate 60 toward the second reminder 430d; It may include a second hole 64b formed in the second wing 64a. The second wing 64a may extend to the outer end of the other side surface 430c, and the second hole 64b may be formed at a position corresponding to the sixth fastening hole 438 .

The third fastening portion 65 includes a third wing 65a protruding from the third substrate 60 toward the third reminder 430e; It may include a third hole 65b formed in the third wing 65a. The third wing 65a may extend to the lower end of the other side surface 430c , and the third hole 65b may be formed at a position corresponding to the seventh fastening hole 439 .

The third substrate 60 may be fixed to the lower plate 430 through a predetermined fastening member (not shown) passing through the plurality of fastening holes 437 , 438 , and 439 .

Hereinafter, a structure in which the third substrate 60 and the fourth substrate 70 are supported by the support body 400 will be described with reference to FIG. 13 . 13 is a view showing the substrate assembly 20 when the third substrate 60 and the fourth substrate 70 are seated on the support body 400, viewed through the top from the bottom.

The inner plate 410 includes a first floor 410a on which the speaker 30 is seated; a second bottom 410b extending radially outward from the first bottom 410a; It may include an inner plate groove 410c formed on the outside of the first floor 410a.

The overall shape of the first floor 410a may be a disk shape, and the speaker 30 and the first substrate 40 may be disposed on the upper surface of the first floor 410a. The second bottom 410b may mean a portion protruding outwardly from the first floor 410a, and thus the inner plate 410 may have the shape of a key. The inner plate groove 410c may mean a portion that is opened vertically on the outside of the inner plate 410 , and may be formed between the outer plate 420 and the inner plate 410 . The inner plate groove 410c may be formed between a pair of third walls 440c facing each other.

The upper rib 418 may be formed to protrude upward from the upper surface of the first floor 410a. The third substrate 60 may be provided with an insertion protrusion 66 protruding upward, and the insertion protrusion 66 is inserted into the insertion groove 418s formed on the inner side of the upper rib 418 to insert the first floor. It may protrude upward from 410a. The insertion protrusion 66 may be formed in pairs to correspond to the insertion groove 418s of the upper rib 418 .

The inner plate 410 may include a second upper protrusion 417 and a third upper protrusion 419 protruding upward from the upper surface of the inner plate 410 .

The second upper protrusion 417 may protrude vertically upwards of the inner plate 410 and may have a 'L' shape in overall appearance. The second upper protrusion 417 includes a second protrusion post 417a protruding upward from the upper surface of the first floor 410a; It may include a second protrusion hook (417b) inclined in a radially outward direction from the upper end of the second protrusion pillar (417a). The second upper protrusion 417 may be formed outside the upper rib 418 .

The third upper protrusion 419 may protrude vertically upwards of the inner plate 410 and may have a square plate shape as a whole. The third upper protrusion 419 may be formed outside of the second upper protrusion 417 , and two may be formed in pairs to face each other. The pair of third upper protrusions 419 may be respectively formed on both sides of the inner plate groove 410c, and the inner plate groove 410c may be formed between the pair of third upper protrusions 419. .

The fourth substrate 70 may be seated on the support body 400 such that the inner end thereof is supported by the second upper protrusion 417 and the third upper protrusion 419 . The first bottom 410a and the second bottom 410b may support a portion of the lower surface of the fourth substrate 70 . The fourth substrate 70 may be partially penetrated toward the inner plate groove 410c while being supported by the inner plate 410 to extend downward.

Hereinafter, a sound wave transmission path through which a voice signal generated from the speaker 30 is output to the outside of the air purifier 10 will be described with reference to FIG. 14 . 14 is a longitudinal sectional view of the air purifier 10 .

The board assembly 20 including the speaker 30 is disposed in the amplification space S formed inside the compartment body 160 .

The sound generated by the speaker 30 may be propagated through various paths A, B, C, D, and E within the air purifier 10 and output to the outside of the air purifier 10 . The first to fifth paths (A, B, C, D, E) shown in the drawing show only representative paths through which sound propagates, and the sound in the air purifier 10 according to the embodiment of the present invention is shown. may be amplified by the compartment body 160 and output to the outside of the air purifier 10 through various paths other than the above path.

The sound generated by the speaker 30 may be amplified in the amplification space S and output to the outside of the air purifier 10 through the outer wall of the compartment body 160 along the first path A.

The sound generated by the speaker 30 may be amplified in the amplification space S and output to the outside of the air purifier 10 through the lower portion of the second filter frame 222 along the second path B. A lower portion of the second filter frame 222 may communicate with the amplification space S and the second inlet 212 .

The sound generated by the speaker 30 is amplified in the amplification space S and output to the outside of the air purifier 10 through the second filter 220 or the second fan 232 along the third path C. can be The sound passing through the second filter 220 may be output to the outside of the air purifier 10 through the second inlet 212 , and the sound passing through the second fan 232 may be output through the second outlet 252 of the air purifier. (10) It can be output to the outside.

The sound generated by the speaker 30 may be amplified in the amplification space S and output to the outside of the air purifier 10 through the first outlet 152 along the fourth path D. The discharge body 150 and the first blower guide 140 may communicate with the amplification space S, and the sound generated from the speaker 30 is transmitted through the discharge body 150 and/or the first blower guide 140 . through the first discharge port 152 may be output to the outside.

The sound generated by the speaker 30 may be amplified in the amplification space S and output to the outside of the air purifier 10 through the first inlet 112 along the fifth path E. A portion of the sound generated by the speaker 30 may propagate downward and be output to the outside of the air purifier 10 through the first inlet 112 formed outside the first filter 120 .

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and in the technical field to which the present invention belongs, without departing from the gist of the present invention as claimed in the claims Various modifications may be made by those of ordinary skill in the art, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

10: air purifier 20: board assembly
30: speaker 40: first substrate
50: second substrate 60: third substrate
70: fourth substrate 80: rim
100: first blower 110: lower case
112: first inlet 120: first filter
150: discharge body 160: compartment body
162: stamp 164: loop
170: connecting body 180: base
200: second blower 210: upper case
212: second inlet 220: second filter
300: circulator

Claims (20)

a first blower having a first inlet and a first outlet, and having a first fan disposed therein;
a second blower that is spaced apart from the first blower, a second inlet and a second outlet are formed, and a second fan is disposed therein;
a filter disposed on at least one of the first blower and the second blower to filter out foreign substances contained in the incoming air;
a partition body disposed between the first blowing device and the second blowing device and having a space therein; and
An air purifier comprising a speaker disposed inside the compartment body.
The method of claim 1,
The air purifier further comprising a support body disposed in the compartment body, on which the speaker is seated.
3. The method of claim 2,
The support body,
an inner plate on which the speaker is seated;
an outer plate extending outwardly from the inner plate;
and a lower plate extending downward from the inner plate.
3. The method of claim 2,
The support body,
An air purifier having a support protrusion that protrudes outwardly from the support body and is connected to the compartment body.
3. The method of claim 2,
Arranged to surround the support body, the air cleaner further comprising a rim (rim) connected to the compartment body.
3. The method of claim 2,
The support body,
and a first fence formed to surround an outer wall of the speaker.
3. The method of claim 2,
The support body,
An air purifier with a holder protruding from the support body to support one side of the speaker.
3. The method of claim 2,
The air purifier further comprising a first substrate seated on the support body and electrically connected to the speaker.
9. The method of claim 8,
The support body,
and a second fence formed to surround an outer wall of the first substrate.
9. The method of claim 8,
The support body,
An air purifier comprising a first upper protrusion formed to support an upper side of the first substrate.
9. The method of claim 8,
The support body,
An air purifier comprising an eaves extending to cover at least a portion of one side of the first substrate.
9. The method of claim 8,
The support body,
An air purifier comprising a lower protrusion formed to support a lower side of the first substrate.
9. The method of claim 8,
The support body,
An air purifier having a wire groove through which a wire connected to the first substrate passes.
3. The method of claim 2,
The air purifier further comprising a second substrate seated on the support body and electrically connected to each of a plurality of sensors for providing air quality information.
3. The method of claim 2,
The air purifier further comprising a third substrate seated on the support body and electrically connected to at least one of the first fan and the second fan.
16. The method of claim 15,
The third substrate is
An air purifier comprising an insertion protrusion formed to pass through the support body.
3. The method of claim 2,
The air purifier further comprising a fourth substrate seated on the support body and receiving a radio wave signal transmitted from the outside of the first blower and the second blower.
18. The method of claim 17,
The support body,
and a second upper protrusion formed to support an upper side of the fourth substrate.
3. The method of claim 2,
a first substrate disposed on an inner plate on which the speaker is mounted;
a second substrate disposed on one side of the lower plate extending downward from the inner plate;
The air purifier further comprising a third substrate disposed on the other side of the lower plate to face the second substrate.
The method of claim 1,
The compartment body,
a stem connected to the first blower and extending outward toward the upper side;
An air purifier including a loop connected to the stem and extending outward toward the lower side.

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