CN116428679A

CN116428679A - Air supply device

Info

Publication number: CN116428679A
Application number: CN202310031027.6A
Authority: CN
Inventors: 石川朋弘; 桂成龙; 江田沙织; 金沢透匡
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2022-01-13
Filing date: 2023-01-10
Publication date: 2023-07-14
Also published as: JP2023103054A

Abstract

The invention provides an air supply device. The air cleaner (1) is provided with a housing (10), an upper air blowing unit (30), a lower air blowing unit (40), a right air blowing unit (16), and a left air blowing unit (17). The upper air blowing unit (30) and the lower air blowing unit (40) are arranged in the housing (10) in a vertical arrangement. The right-side blowing-out part (16) is arranged on the right side of the front surface of the housing (10) and blows out the air sent out from the upper-side blowing-out part (30) to the outside. The left blowing-out part (17) is arranged at the left side of the front surface of the shell (10) and blows out the air sent out from the lower blowing-out part (40) to the outside.

Description

Air supply device

Technical Field

The present invention relates to an air blowing device.

Background

Patent document 1 discloses an air cleaner having a large air blowing amount. The air purifier is composed of a suction inlet, a first blow-out port, a second blow-out port and an air supply passage. The suction port opens around the lower part of the housing. The first and second outlets are opened at both side portions of the upper portion of the housing. The air supply passage has: a first branch passage extending up and down from one side of the casing and communicating the suction port with the first air outlet; and a second branching path that extends up and down on the other side portion of the housing and communicates the suction port with the second blowout port. The first branching circuit is provided with: a first blower that sucks air from the suction port and circulates the air flow through the first branch passage; and a first dust collection filter that captures dust in the air. The second branching circuit is provided with: a second blower that sucks air from the suction port and circulates the air flow through the second branch passage; and a second dust collection filter that captures dust in the air.

Prior art literature

Patent literature

Patent document 1: japanese patent No. 6725213

Disclosure of Invention

The invention aims to solve the technical problems

In a plan view of the air cleaner disclosed in patent document 1, the first blower, the first dust collecting filter, the second dust collecting filter, and the second blower are arranged in parallel. Therefore, there is a problem that the installation area of the air cleaner is large.

The invention aims to provide an air supply device capable of increasing air supply quantity without increasing installation area.

Technical scheme for solving technical problems

The air blowing device of the present invention comprises a housing, at least two air blowing units, a right blowing unit, and a left blowing unit. The at least two air supply parts are arranged in the shell in a vertical arrangement mode. The right blowout part is provided on the right side of the front surface of the housing, and blows out the air blown out from a part of the at least two air blowing parts to the outside. The left air supply part is arranged at the left side of the front surface of the shell and blows out the air sent out from the rest air supply parts in the at least two air supply parts to the outside.

Advantageous effects

According to the present invention, it is possible to provide an air blower that can increase the air volume without increasing the installation area.

Drawings

Fig. 1 is a right side view of an air cleaner of a first embodiment.

Fig. 2 is a front view of the air cleaner of the first embodiment.

Fig. 3 is a rear view of the air cleaner of the first embodiment.

Fig. 4 is a perspective view showing a structure of a filter unit in the air cleaner according to the first embodiment.

Fig. 5 is a perspective view showing a structure of a filter holding portion in the air cleaner according to the first embodiment.

Fig. 6 is a perspective view showing a configuration of an air blowing unit of the air cleaner according to the first embodiment.

Fig. 7 is a front view showing the configuration of the air passage in the air cleaner according to the first embodiment.

Fig. 8 is a right side view showing the configuration of the air passage in the air cleaner according to the first embodiment.

Fig. 9 is a left side view showing the configuration of the air passage in the air cleaner according to the first embodiment.

Fig. 10 is a sectional view of the air cleaner of the first embodiment cut by the cutting line X in fig. 2.

Fig. 11 is a sectional view of the air cleaner of the first embodiment after being cut by the cutting line XI of fig. 2.

Fig. 12 is a sectional view of the air cleaner of the first embodiment after being cut by the cutting line XII in fig. 2.

Fig. 13 is a plan view illustrating the crossing position of the filter unit in the air cleaner according to the first embodiment.

Fig. 14 is a reference example for helping understanding the crossing position of the filter portion in the air cleaner of the first embodiment.

Fig. 15 is a front view showing a structure of an upper filter in the air cleaner according to the first embodiment.

Fig. 16 is a partial cross-sectional view showing the structure of the upper filter in the air cleaner according to the first embodiment.

Detailed Description

Embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals, and description thereof will not be repeated.

< first embodiment >

Referring to fig. 1 to 16, an air cleaner 1 and a filter unit 20 used in the air cleaner 1, which are an example of an air blower according to the first embodiment, will be described. In the present specification, for ease of understanding, the vertical direction, the front-rear direction, and the lateral direction are described in some cases. These directions are merely defined for convenience of description, and the directions at the time of use and the time of assembly of the air cleaner 1 of the first embodiment are not limited by the definition of these directions. The air cleaner 1 may be configured as an air blower that does not have an air cleaning function (the filter unit 20, the

ion generators

51, 61, and the like) and a heating function (the heaters 52, 62).

Fig. 1 is a right side view of an air cleaner 1 according to a first embodiment, fig. 2 is a front view, and fig. 3 is a rear view. The housing 10 of the air cleaner 1 is provided on the floor surface or the like in a room. The housing 10 has at least two air blowing

portions

30 and 40 arranged in a vertical direction (see fig. 6 and the like described later). A right side blowing portion 16 is provided on the right side of the front surface of the casing 10, and the right side blowing portion 16 blows out air blown out from the blowing portion 30 of a part of the at least two blowing

portions

30, 40 to the outside. A left-side blowing portion 17 is provided on the left side of the front surface of the housing 10, and the left-side blowing portion 17 blows out air blown out from at least the remaining air blowing portion 40 of the two air blowing

portions

30 and 40 to the outside.

A side panel 10a for design is attached to the right side surface of the case 10. A side panel 10b for design is attached to the left side surface of the case 10. Further, an intake portion 13 for taking in outside air is provided on the back surface of the case 10. A grid-like back panel 14 is detachably attached to the suction portion 13. That is, the opening of the suction portion 13 is covered with the back panel 14. The back panel 14 functions as a prefilter, and traps relatively large dust in the air, and the hair and fibers of the pet.

The air cleaner 1 is configured to have a substantially cylindrical shape extending in the up-down direction. Therefore, the

side panels

10a, 10b and the back panel 14 are also formed in a curved shape along the cylinder.

An operation unit 11 is provided on the upper surface of the air cleaner 1. For example, the operation unit 11 includes a power button, an operation mode switching button, a heater operation button, and the like. By operating the power button, the air cleaner 1 starts and stops the operation. Each time the operation mode switching button is operated, the air blowing amount of the

air blowing units

30, 40 is switched to any one of "weak", "medium", and "strong". By operating the heater operation button, the

heaters

52 and 62 described later start and stop operation. The position, shape, and the like of the operation unit 11 are not limited to the example of the figure. The function of the air cleaner 1 operated by operating the operation unit 11 is not limited to the above example.

A display unit 12 is provided at an upper portion of the front surface of the air cleaner 1. For example, the display unit 12 displays the room temperature during the operation of the air cleaner 1. The room temperature is detected by a temperature sensor, not shown, provided in the air cleaner 1. The position, shape, and the like of the display unit 12 are not limited to the example of the figure. The information displayed on the display unit 12 is not limited to the above example.

Next, the structure of the filter unit 20 and its surroundings will be described with reference to fig. 4 and 5. Fig. 4 is a perspective view showing the structure of the filter unit 20 in the air cleaner 1 according to the first embodiment. In fig. 4, the

side panels

10a, 10b and the back panel 14 are removed. Fig. 5 is a perspective view showing the structure of the filter holding portion 15 in the air cleaner 1 according to the first embodiment. In fig. 5, the

side panels

10a, 10b, the back panel 14, and the filter portion 20 are removed.

At least two

filters

21, 22 of rectangular parallelepiped shape which are arranged in a vertical direction and intersect each other in a plan view are provided in the housing 10. The

filters

21 and 22 constitute a filter unit 20. Hereinafter, the filter 21 disposed on the upper side will be referred to as an upper filter 21, and the filter 22 disposed on the lower side will be referred to as a lower filter 22. The plan view means that the air cleaner 1 is viewed from a normal direction of an upper surface provided with the operation portion 11. The upper filter 21 and the lower filter 22 are arranged in a vertically aligned manner so as to cover the suction portion 13 having a vertically long shape. By forming the intake portion 13 as a large opening portion having a vertically long shape, the intake area of air can be increased without increasing the installation area of the air cleaner 1. Further, by increasing the suction area of the air, as a result, the air supply amount of the air cleaner 1 can be increased. In addition, although the suction portion 13 can be covered with one filter that is long in the up-down direction, the filter that is long in the up-down direction is difficult to handle. Therefore, in the first embodiment, at least two filters are arranged in a top-bottom arrangement. This shortens the length of each filter in the up-down direction, and facilitates handling.

The upper filter 21 includes a filter main body 21a and an outer frame 21c covering the outer peripheral surface of the filter main body 21 a. The upper filter 21 may have a handle 21e. The lower filter 22 includes a filter main body 22a and an outer frame 22c covering the outer peripheral surface of the filter main body 22 a. The lower filter 22 may have a handle 22e. Details of the upper filter 21 and the lower filter 22 will be described later. The

filter bodies

21a and 22a are constituted by HEPA (High Efficiency Particulate Air) filters, for example. The upper filter 21 and the lower filter 22 collect small dust, pollen, smoke, PM2.5 (fine particulate matter), etc. passing through the back panel 14 functioning as a prefilter.

The upper filter 21 and the lower filter 22 are filters adjacent to each other vertically, intersect each other, and are in direct contact at an intersection position 23. The crossing position 23 is a position where the lower surface of the upper filter 21 crosses the upper surface of the lower filter 22 in a plan view. In the first embodiment, the upper filter 21 is directed obliquely rearward to the left, and the lower filter 22 is directed obliquely rearward to the right.

The rear surfaces of the upper filter 21 and the lower filter 22 face the curved rear surface panel 14. The upper filter 21 and the lower filter 22 are detachably held by a filter holding portion 15 provided in the housing 10. The filter holding portion 15 is a recess having a shape corresponding to the upper filter 21 and the lower filter 22. The filter holding portion 15 includes a lower holding portion 15a,

side holding portions

15b, 15c, 15f, 15g,

front holding portions

15d, 15i, and an upper holding portion 15h.

The lower surface holding portion 15a holds the lower surface of the lower filter 22. The

side holding portions

15b and 15c hold both side surfaces of the lower filter 22. The lattice-shaped front surface holding portion 15d holds the front surface of the lower filter 22. The

side holding portions

15g and 15f hold both side surfaces of the upper filter 21. The upper surface holding portion 15h holds the upper surface of the upper filter 21. The lattice-shaped front surface holding portion 15i holds the front surface of the upper filter 21. The lower surface of the upper filter 21 is held by the upper surface of the lower filter 22.

When the filter unit 20 is attached to the air cleaner 1, the lower filter 22 is first fitted into the filter holder 15 in a state where the back panel 14 is detached from the suction unit 13. Next, the upper filter 21 is fitted into the filter holding portion 15. The lower surface of the upper filter 21 is held by the upper surface of the lower filter 22, and therefore, it is preferable to mount the lower filter 22 prior to the upper filter 21.

When the filter unit 20 is removed from the air cleaner 1, the upper filter 21 is first removed from the filter holder 15 in a state where the back panel 14 is removed from the suction unit 13. Next, the lower filter 22 is detached from the filter holder 15. At this time, the user can easily detach the

handles

21e, 22e by grasping and pulling them.

The lower surface of the upper filter 21 and the upper surface of the lower filter 22 are surfaces that are in direct contact with each other and that rub against each other when attached and detached. Therefore, the reinforcing

members

21f and 22f may be provided at least on the lower surface of the upper filter 21 and the upper surface of the lower filter 22, thereby improving the strength. Alternatively, a member having a low friction coefficient may be provided at least on the lower surface of the upper filter 21 and the upper surface of the lower filter 22, so that the assembly and the disassembly are easy. The surfaces on which the reinforcing

members

21f and 22f and the members having low friction coefficients are provided may be at least one surface orthogonal to the longitudinal direction of the outer peripheral surfaces of the

outer frames

21c and 22c. The surfaces perpendicular to the longitudinal direction correspond to the upper and lower surfaces of the outer frame 21c of the upper filter 21 and the upper and lower surfaces of the outer frame 22c of the lower filter 22.

A filter detection unit 18 (see fig. 10) is provided below the upper surface holding unit 15h. The filter detection unit 18 is disposed so as to be able to contact the upper surface of the upper filter 21 disposed at the uppermost side of the filter units 20. The filter detection unit 18 is, for example, a lever or a switch that is pushed by the upper surface of the upper filter 21 held in the correct position by the filter holding unit 15 and moves upward. The upper filter 21 is held by the lower filter 22, and therefore the presence or absence of the upper filter 21 and the lower filter 22 can be detected by the single filter detection unit 18. For example, when the filter detection unit 18 detects the upper filter 21, the operation of the air cleaner 1 is permitted. On the other hand, when the filter detection unit 18 does not detect the upper filter 21, the operation of the air cleaner 1 is not started or stopped. Therefore, malfunction of the air cleaner 1 is prevented.

The internal structure of the air cleaner 1 will be described below with reference to fig. 6 to 12. Fig. 6 is a perspective view showing the configuration of the

blower units

30 and 40 of the air cleaner 1 according to the first embodiment. Fig. 7 is a front view showing the configuration of the

air passages

50, 60 in the air cleaner 1 according to the first embodiment. Fig. 8 is a right side view showing the structure of the air passage 50 in the air cleaner 1 according to the first embodiment. Fig. 9 is a left side view showing the configuration of the air passage 60 in the air cleaner 1 according to the first embodiment. Fig. 10 is a sectional view of the air cleaner 1 according to the first embodiment cut by the cutting line X shown in fig. 2. Fig. 11 is a sectional view of the air cleaner 1 according to the first embodiment after being cut by the cutting line XI in fig. 2. Fig. 12 is a sectional view of the air cleaner 1 according to the first embodiment after being cut by the cutting line XII in fig. 2. In fig. 10 to 12, the flow of air is indicated by arrows.

At least two

air blowing portions

30, 40 are provided at positions corresponding to the at least two

filters

21, 22, respectively. The air cleaner 1 has two

air passages

50 and 60. Hereinafter, the air blowing unit 30 disposed at a position corresponding to the upper filter 21 is referred to as an upper air blowing unit 30, and the air blowing unit 40 disposed at a position corresponding to the lower filter 22 is referred to as a lower air blowing unit 40. The air duct 50 located on the right side of the air cleaner 1 is referred to as a right air duct 50, and the air duct 60 located on the left side is referred to as a left air duct 60. The right air duct 50 connects the air blowing portion 30 of a part of the at least two

air blowing portions

30, 40 to the right air blowing portion 16. The left air passage 60 connects the remaining air blowing portion 40 of the at least two

air blowing portions

30 and 40 to the left air blowing portion 17. The air sent from the upper air sending unit 30 flows through the right air duct 50, and is blown out forward from the right air blowing unit 16. The air sent from the lower air sending unit 40 flows through the left air passage 60, and is blown out forward from the left air blowing unit 17.

The upper air supply unit 30 has at least one sirocco fan. The lower blower 40 also has at least one sirocco fan. The rotation shaft of the sirocco fan is disposed in the up-down direction. By arranging the plurality of fans in a vertically aligned manner, the installation area of the air cleaner 1 is not increased. In addition, by incorporating a plurality of fans, the air supply amount of the air cleaner 1 can be increased, and air in a wide space can be cleaned.

In the first embodiment, the upper air blowing unit 30 includes two sirocco fans (a first fan 32 and a second fan 34) arranged in a vertical direction. The rotation axis of the first fan 32 and the rotation axis of the second fan 34 are arranged coaxially. Here, the rotation axis of the first fan 32 and the rotation axis of the second fan 34 are collectively referred to as an upper rotation axis 36 (see fig. 11). The upper blower 30 may have 3 or more sirocco fans arranged in a vertical direction.

The upper blower 30 includes an upper fan motor 35 that operates the first fan 32 and the second fan 34. The upper fan motor 35 is disposed between the first fan 32 and the second fan 34. The upper fan motor 35 rotates the first fan 32 and the second fan 34 counterclockwise about the upper rotation shaft 36.

The first fan 32 is housed inside the first fan housing 31. The upper intake 31a opens to the upper side of the first fan housing 31. The lower intake portion 31b opens at the lower side of the first fan housing 31. The delivery portion (not shown) is opened to the right peripheral surface of the first fan housing 31. The outlet (not shown) of the first fan housing 31 faces the same direction as the outlet 33c of the second fan housing 33 shown in fig. 11.

The first fan 32 sucks in outside air from the suction portion 13 through the back panel 14, passes through the upper filter 21 and the lattice-shaped front surface holding portion 15i, is taken in from the upper intake portion 31a and the lower intake portion 31b of the first fan case 31, and is sent out in the circumferential direction from the sending-out portion (not shown). A delivery portion (not shown) of the first fan housing 31 is connected to one end side of the right air duct 50.

The second fan 34 is housed inside the second fan housing 33. The upper intake portion 33a opens to the upper side of the second fan housing 33. The lower intake portion 33b opens at the lower side of the second fan housing 33. The delivery portion 33c is opened on the right circumferential surface of the second fan housing 33.

The second fan 34 sucks in the outside air from the suction portion 13 through the back panel 14, passes through the upper filter 21 and the lattice-shaped front surface holding portion 15i, is taken in from the upper intake portion 33a and the lower intake portion 33b of the second fan case 33, and is sent out from the sending-out portion 33c in the circumferential direction. The delivery portion 33c of the second fan housing 33 is connected to one end side of the right air passage 50.

The lower blower 40 has 2 sirocco fans (third fan 42 and fourth fan 44) arranged in a vertical direction. The rotation axis of the third fan 42 and the rotation axis of the fourth fan 44 are arranged coaxially. Here, the rotation axis of the third fan 42 and the rotation axis of the fourth fan 44 are collectively referred to as a lower rotation axis 46. The lower blower 40 may have 3 or more sirocco fans arranged in a vertical direction.

The lower blower 40 includes a lower fan motor 45 that operates the third fan 42 and the fourth fan 44. The lower fan motor 45 is disposed between the third fan 42 and the fourth fan 44. The lower fan motor 45 rotates the third fan 42 and the fourth fan 44 clockwise about the lower rotation shaft 46.

The third fan 42 is housed inside the third fan housing 41. The upper intake 41a opens to the upper side of the third fan case 41. The lower intake 41b opens at the lower side of the third fan case 41. The delivery portion 41c is opened in the left peripheral surface of the third fan housing 41.

The third fan 42 sucks in the outside air from the suction portion 13 through the back panel 14, passes through the lower filter 22 and the lattice-shaped front surface holding portion 15d, is taken in from the upper intake portion 41a and the lower intake portion 41b of the third fan case 41, and is sent out from the sending-out portion 41c in the circumferential direction. The delivery portion 41c of the third fan case 41 is connected to one end side of the left air passage 60.

The fourth fan 44 is housed inside the fourth fan housing 43. The upper intake portion 43a opens to the upper side of the fourth fan case 43. The lower intake portion 43b opens at the lower side of the fourth fan case 43. The delivery portion (not shown) is opened to the left peripheral surface of the fourth fan housing 43. The outlet portion (not shown) of the fourth fan housing 43 faces the same direction as the outlet portion 41c of the third fan housing 41 shown in fig. 12.

The fourth fan 44 sucks in outside air from the suction portion 13 through the back panel 14, passes through the lower filter 22 and the lattice-shaped front surface holding portion 15d, is taken in from the upper suction portion 43a and the lower suction portion 43b of the fourth fan case 43, and is sent out in the circumferential direction from the sending-out portion (not shown). A delivery portion (not shown) of the fourth fan case 43 is connected to one end side of the left air duct 60.

The right air passage 50 extends from the right side and the upper side of the air cleaner 1 toward the front side and the center. The right air passage 50 is curved along the substantially cylindrical casing 10. One end side of the right air duct 50 is connected to a delivery portion (not shown) of the first fan housing 31 and a delivery portion 33c of the second fan housing 33. The other end side of the right air duct 50 is connected to the right blowing unit 16.

The right air duct 50 includes

branch air ducts

50a and 50b that branch a part of the air duct. In the first embodiment, the

branched air passages

50a and 50b are provided at one end side of the right air passage 50. The

branched air passages

50a and 50b merge at a position further ahead than the right side blowing portion 16. A right air direction changing portion 16a is provided on the other end side of the right air duct 50, that is, on the right air outlet portion 16 side. The right wind direction changing portion 16a is a surface parallel to the front-rear direction. The air flowing along the curved right air path 50 collides with the right air direction changing portion 16a, changes its direction, and is blown out from the right blowing portion 16 toward the front of the case 10. Thereby, the right air direction changing unit 16a can change the direction in which the air flowing along the right air passage 50 is blown out from the right blowing unit 16 to the front of the case 10. Further, the right wind direction changing portion 16a is formed by a part of the casing 10, so the number of components does not increase.

The right air duct 50 is provided with a imparting unit that imparts air characteristics to the air blown out from the upper air blowing unit 30. The applying unit is an ion generating device 51, a heater 52, a humidifying device (not shown), or the like. In the first embodiment, the imparting unit is disposed in each of the branched

air passages

50a and 50b, and imparts different air characteristics to each other.

The ion generating device 51 is disposed in the branched air passage 50a, for example. The discharge electrode portion 51a of the ion generating device 51 faces the branched air passage 50a. When the voltage applied to the discharge electrode portion 51a is a positive voltage, the discharge electrode portion 51a generates positive ions, and when it is a negative voltage, negative ions are generated. The air cleaner 1 can remove bacteria and odor in a room by destroying suspended bacteria, odor components, and the like in the air by these ions. The ion generator 51 is not limited to ions, and may be a discharge device that generates electrons, ozone, radicals, active species, and the like.

The heater 52 is disposed in the branched air passage 50b, for example. The air cleaner 1 can raise the indoor temperature by heating the air by the heater 52. Further, by disposing the ion generating device 51 and the heater 52 in different air passages, the ions generated by the ion generating device 51 can be prevented from being adsorbed to the metal member of the heater 52, so that the sterilization and deodorization can be effectively performed.

The left air passage 60 extends from the left side and the lower side of the air cleaner 1 toward the front side and the center. The left air passage 60 is curved along the substantially cylindrical casing 10. One end of the left air passage 60 is connected to a delivery portion 41c of the third fan housing 41 and a delivery portion (not shown) of the fourth fan housing 43. The other end side of the left air passage 60 is connected to the left blowing portion 17.

The left air duct 60 has

branch air ducts

60a and 60b, a part of which is branched. In the first embodiment, the

branch air passages

60a and 60b are provided at one end side of the left air passage 60. The

branched air passages

60a and 60b merge at a position further ahead than the left side blowing portion 17. A left wind direction changing portion 17a is provided on the other end side of the left wind path 60, that is, on the left blowing portion 17 side. The left wind direction changing portion 17a is a surface parallel to the front-rear direction. The air flowing along the curved left air passage 60 collides with the left air direction changing portion 17a, changes its direction, and is blown out from the left blowing portion 17 toward the front of the case 10. Thereby, the left air direction changing unit 17a can change the direction in which the air flowing along the left air passage 60 is blown out from the left blowing unit 17 to the front of the case 10. Further, the left wind direction changing portion 17a is formed by a part of the housing 10, and therefore the number of components does not increase.

The left air duct 60 is provided with a imparting unit that imparts air characteristics to the air blown out from the lower air blowing unit 40. The applying unit includes an ion generator 61, a heater 62, a humidifier (not shown), and the like. In the first embodiment, the imparting portion is disposed in each of the branched

air passages

60a, 60b, and imparts different air characteristics to each other.

The ion generating device 61 is disposed in the branched air passage 60a, for example. The discharge electrode portion 61a of the ion generating device 61 faces the branched air passage 60a. The ion generator 61 imparts positive ions or negative ions to the air as in the ion generator 51. The ion generator 61 is not limited to ions, and may be a discharge device that generates electrons, ozone, radicals, active species, and the like.

The heater 62 is disposed in the branched air passage 60b, for example. The heater 62 gives heat to the air in the same manner as the heater 52.

The heater 52 may be disposed upstream of the right air passage 50, i.e., on the side of the upper air blowing unit 30, and the ion generator 51 may be disposed downstream, i.e., on the side of the right air blowing unit 16. Similarly, the heater 62 may be disposed upstream of the left air passage 60, i.e., on the side of the lower air blowing unit 40, and the ion generator 61 may be disposed downstream, i.e., on the side of the left air blowing unit 17. In this arrangement, the ions generated by the

ion generating devices

51 and 61 can be prevented from being adsorbed to the metal members of the

heaters

52 and 62, and therefore, sterilization and deodorization can be effectively performed. In addition, a branched air passage can be unnecessary.

In the first embodiment, the imparting portions are provided in both the right air duct 50 and the left air duct 60, but the imparting portions may be provided in at least one of the right air duct 50 and the left air duct 60. The air characteristics may be different between the application portion provided in the right air duct 50 and the application portion provided in the left air duct 60.

Since the

discharge electrode portions

51a, 61a are consumed, the

ion generating devices

51, 61 require replacement work by the user. That is, the

ion generating devices

51 and 61 are replacement members. Therefore, the air cleaner 1 is preferably configured to facilitate replacement work of the

ion generating devices

51 and 61.

Here, the suction portion 13 provided at the rear surface of the housing 10 is opened larger than the upper filter 21 and the lower filter 22, and the upper filter 21 and the lower filter 22 are disposed at the opening.

Ion generating devices

51 and 61 as replacement members are disposed in gaps of the suction portion 13 which are not blocked by the upper filter 21 and the lower filter 22. More specifically, as shown in fig. 11 and the like, a gap exists between the side holding portion 15f holding the upper filter 21 and the edge of the suction portion 13. An ion generating device 51 is disposed in the gap. Further, the gap is opposite to the right air passage 50. The right air passage 50 is open at a portion facing the gap, and an ion generator 51 is disposed so as to close the opening. The discharge electrode portion 51a of the ion generating device 51 protrudes into the branched air duct 50a through the opening of the right air duct 50.

As shown in fig. 12 and the like, a gap is provided between the side holding portion 15c holding the lower filter 22 and the edge of the suction portion 13. An ion generating device 61 is disposed in the gap. Further, the gap is opposite to the left air passage 60. The left air duct 60 is opened at a portion facing the gap, and the ion generator 61 is disposed so as to close the opening. The discharge electrode portion 61a of the ion generating device 61 protrudes into the branched air duct 60a through the opening of the left air duct 60.

As shown in fig. 4, when the back panel 14 is detached from the suction portion 13, the

ion generating devices

51 and 61 are exposed, and therefore replacement of the

ion generating devices

51 and 61 is easy. Since the openings are provided on the outer surfaces of the right air duct 50 and the left air duct 60, the

discharge electrode portions

51a and 61a can be disposed in the right air duct 50 and the left air duct 60 without requiring a special task.

The rotation axes of the fans of the vertically adjacent

air blowing units

30 and 40 of the at least two air blowing units are arranged at positions offset from each other in plan view. Specifically, as shown in fig. 11, the upper rotary shaft 36 of the upper air blowing unit 30 and the lower rotary shaft 46 of the lower air blowing unit 40 are disposed at positions offset in the left-right direction in plan view with respect to the adjacent upper air blowing unit 30 and lower air blowing unit 40. That is, the upper air blowing unit 30 is disposed to the right, and the lower air blowing unit 40 is disposed to the left. The upper air blowing unit 30 is disposed on the right side to avoid interference with the left air duct 60 disposed on the left side and to increase the air blowing amount. On the other hand, the lower air blowing unit 40 is disposed on the left side to avoid interference with the right air duct 50 disposed on the right side and to increase the air blowing amount.

When the upper rotary shaft 36 of the upper air blowing unit 30 and the lower rotary shaft 46 of the lower air blowing unit 40 are to be coaxially arranged, the diameter of the upper air blowing unit 30 needs to be reduced so that the upper air blowing unit 30 does not interfere with the left air passage 60. Similarly, in order to prevent the lower air blowing unit 40 from interfering with the right air duct 50, the diameter of the lower air blowing unit 40 needs to be reduced. If the diameter of the upper air blowing unit 30 is reduced, that is, if the first fan 32 and the second fan 34 are miniaturized, the air blowing amount is reduced. Similarly, if the diameter of the lower air blowing unit 40 is reduced, that is, if the third fan 42 and the fourth fan 44 are miniaturized, the air blowing amount is reduced. The upper rotary shaft 36 of the upper blower 30 and the lower rotary shaft 46 of the lower blower 40 may be disposed at positions overlapping each other in a plan view.

The fans of the vertically adjacent

air blowing units

30 and 40 of the at least two air blowing units rotate in opposite directions. Specifically, as shown in fig. 11, the rotation directions of the first fan 32 and the second fan 34 included in the upper blower 30 are counterclockwise. On the other hand, as shown in fig. 12, the rotation directions of the third fan 42 and the fourth fan 44 included in the lower blower 40 are clockwise. By reversing the rotation directions of the upper air blowing unit 30 and the lower air blowing unit 40, the distance from the upper air blowing unit 30 to the right air duct 50 connected to the right air blowing unit 16 and the distance from the lower air blowing unit 40 to the left air duct 60 connected to the left air blowing unit 17 can be shortened.

Next, the arrangement of the filter unit 20 will be described with reference to fig. 13 and 14. Fig. 13 is a plan view illustrating a crossing position 23 of the filter unit 20 in the air cleaner 1 according to the first embodiment. Fig. 14 is a reference example for helping understanding the crossing position 23 of the filter portion 20 in the air cleaner 1 of the first embodiment.

Fig. 13 is a plan view schematically showing a case 10 including a back panel 14 and a filter unit 20 including an upper filter 21 and a lower filter 22. The upper filter 21 and the lower filter 22 are arranged at an angle in plan view, and intersect at an intersection position 23. By intersecting the upper filter 21 and the lower filter 22, the distance D1 between the rear panel 14 and the upper filter 21 and the distance D1 between the rear panel 14 and the lower filter 22 can be ensured. By securing the distance D1, the pressure loss around the suction portion 13 can be reduced.

In the reference example of fig. 14, a case 10A including a back panel 14A and a filter portion 20A constituted by an upper filter 21A and a lower filter 22A are schematically shown. The upper filter 21A and the lower filter 22A of the reference example are disposed at the same angle in a plan view. In order to secure the distance D1 between the rear panel 14A and the upper filter 21A and the distance D1 between the rear panel 14A and the lower filter 22A, the rear panel 14A needs to protrude outward from the case 10A. That is, in order to secure the distance D1, the installation area of the housing 10A needs to be increased. In contrast, when the upper filter 21 and the lower filter 22 are crossed, the installation area of the housing 10 does not need to be increased to secure the distance D1.

The crossing position 23 of the upper filter 21 and the lower filter 22, which are vertically adjacent, is located on the back surface panel 14 side of the

filter center portions

24 and 25 in a plan view, for example. The center on the upper surface (or lower surface) of the upper filter 21 is taken as a filter center portion 24. The center on the upper face (or lower face) of the lower filter 22 is taken as a filter center portion 25. By positioning the crossing point 23 on the back surface panel 14 side with respect to the

filter center portions

24 and 25, the gap between the

ion generators

51 and 61 can be provided on the left and right sides of the filter portion 20 without increasing the installation area of the air cleaner 1.

Next, the detailed configuration of the upper filter 21 and the lower filter 22 will be described with reference to fig. 15 to 16. Fig. 15 is a front view showing the structure of the upper filter 21 in the air cleaner 1 according to the first embodiment. Fig. 16 is a partial cross-sectional view showing the structure of the upper filter 21 in the air cleaner 1 according to the first embodiment.

The upper filter 21 and the lower filter 22 have the same shape, and therefore the upper filter 21 will be representatively described herein.

The upper filter 21 includes a filter main body 21a and an outer frame 21c. The upper filter 21 may further include a handle 21e in addition to the filter main body 21a and the outer frame 21c.

The filter main body 21a is configured by folding a plurality of folding lines 21b formed along a longitudinal direction, i.e., an up-down direction. As described above, the filter body 21a is constituted by a HEPA filter or the like. Since the plurality of fold lines 21b are arranged in the left-right direction along the up-down direction, the strength of the filter main body 21a in the up-down direction is high. Therefore, in the case where the upper filter 21 and the lower filter 22 are arranged in the upper-lower arrangement, deformation is difficult even if the load of the upper filter 21 is applied to the lower filter 22.

Adjacent fold lines 21b among the plurality of fold lines 21b are bonded to each other by an adhesive 21 d. The adhesive 21d is disposed in a direction perpendicular to the fold line 21b, i.e., in the left-right direction. As shown in fig. 16, adjacent fold lines 21b are bonded to each other by an adhesive 21d to both the front side and the back side of the filter body 21 a. The adhesive 21d maintains the distance between the adjacent folding lines 21 b. The plurality of adhesives 21d are arranged in the left-right direction, so that the shape of the filter main body 21a in the left-right direction is maintained. In order to maintain the shape of the entire filter body 21a, it is preferable to provide a plurality of rows of adhesive 21d extending in the left-right direction in the up-down direction. In the first embodiment, 6 columns of the adhesive 21d are provided.

The outer frame 21c covers the outer peripheral surface of the filter main body 21 a. The outer frame 21c is made of nonwoven fabric, resin, or the like. Since the filter main body 21a itself has high strength, the outer frame 21c does not necessarily need to have high strength.

The handle 21e is fixed in a state where one end side is sandwiched between the filter main body 21a and the outer frame 21c, and the other end side protrudes from the outer frame 21c. For example, the handle 21e is bonded between the filter main body 21a and the outer frame 21c by an adhesive (not shown). Since the area to which one of the longitudinal directions can be bonded is larger than the area to which the other of the longitudinal directions of the filter main body 21a can be bonded, the handle 21e is preferably disposed in the longitudinal direction of the filter main body 21a in order to secure the bonding force. Further, since a larger load is applied in the longitudinal direction than in the short side direction of the filter main body 21a, the handle 21e is preferably disposed in the longitudinal direction of the filter main body 21a in order to ensure easy removal of the upper filter 21.

The number and positions of the handles 21e may be arbitrary. For example, the handle 21e may be provided at the right and left centers of the upper filter 21. Further, for example, the handle 21e may be provided at the right lower portion and the left upper portion of the upper filter 21. Further, for example, the handles 21e may be provided at the right side upper portion and the left side upper portion. Further, for example, the handle 21e may be provided at the upper center. Here, an example of the specification of the upper filter 21 is shown. The upper filter 21 has dimensions of about 310mm in the up-down direction, about 150mm in the left-right direction, and about 35mm in the front-rear direction. The handle 21e has a length of about 37mm and a width of about 15mm from the filter main body 21a side to the protruding tip end side. The filter main body 21a contains activated carbon, and can provide a deodorizing effect. The outer peripheral surface of the outer frame 21c may have a display indicating the insertion direction when the filter is provided. The display showing the insertion direction is, for example, characters such as "back" and "front" showing the orientation when the upper filter 21 is provided in the filter holding portion 15, or an arrow showing the orientation. Further, the display indicating the insertion direction is arranged on the surface provided with the grip 21e in the outer peripheral surface of the outer frame 21c, so that the user easily notices the display indicating the insertion direction.

The embodiments of the present invention are described above with reference to the drawings (fig. 1 to 16). However, the present invention is not limited to the above-described embodiments, and may be implemented in various forms within a scope not departing from the gist thereof. For example, in the above embodiment, the blower and the filter are arranged in two or more groups, but three or more groups may be arranged in one or more groups. Further, although 2 fans are arranged vertically in the 1 air blowing units, 3 or more fans may be arranged vertically. Even with such an arrangement, the air cleaner 1 can clean the air in a wide space without increasing the installation area.

For easy understanding, the drawings schematically show the respective components. Accordingly, the thickness, length, shape, number, spacing, material, etc. of each constituent element shown in the drawings are not particularly limited, and various modifications can be made without substantially departing from the scope of the present invention.

Industrial applicability

The present invention is particularly suitable for an air blower provided in a wide space, an air cleaner for cleaning air in a wide space, or the like.

Description of the reference numerals

1: air purifier (air supply device)

10: shell body

10a, 10b: side panel

11: operation part

12: display unit

13: suction part

14: back panel

15: filter holding part

15a: lower holding part

15b, 15c, 15f, 15g: side holding part

15d, 15i: front holding part

15h: upper surface holding part

16: right side blowing-out part

16a: right wind direction changing part

17: left side blowing-out part

17a: left wind direction changing part

18: filter detection unit

20: filter unit

21: upper filter (Filter)

21a, 22a: filter main body

21b: folding line

21c, 22c: outer frame

21d: adhesive agent

21e, 22e: handle grip

21f, 22f: reinforcing component

22: underside filter (Filter)

23: intersection position

24. 25: filter center portion

30: upper air supply part (air supply part)

31: first fan shell

31a, 33a, 41a, 43a: upper intake part

31b, 33b, 41b, 43b: lower intake part

33c, 41c: delivery unit

32: first fan

33: second fan shell

34: second fan

35: upper fan motor

36: upper rotary shaft

40: lower air supply part (air supply part)

41: third fan casing

42: third fan

43: fourth fan casing

44: fourth fan

45: lower fan motor

46: lower rotary shaft

50: right side wind path (wind path)

50a, 50b, 60a, 60b: branched air path

51. 61: ion generating device (giving part, replacing part)

51a, 61a: discharge electrode part

52: heater (endowing part)

62: heater (endowing part)

60: left wind path (wind path)

D1: distance of

Claims

1. An air blowing device, characterized by comprising:

a housing;

at least two air supply parts which are arranged in the shell in a vertical arrangement way;

a right-side blowing-out part provided on the right side of the front surface of the housing, and blowing out air blown out from a part of the at least two blowing-out parts to the outside;

and a left blowing-out part provided on the left side of the front surface of the housing, and blowing out the air blown out from the remaining blowing-out parts of the at least two blowing-out parts to the outside.

2. The air supply device according to claim 1, wherein,

an intake part for taking in external air is provided at the rear of the housing,

and fans provided in the at least two air blowing units, wherein the fans are provided with rotating shafts in the vertical direction, and the fans take in the external air sucked from the suction units from the upper side and the lower side and send out the external air along the circumferential direction.

3. The air blowing device according to claim 2, wherein rotation axes of the fans of the air blowing portions adjacent to each other in the upper and lower of the at least two air blowing portions are arranged at positions offset from each other in a plan view.

4. A blower according to claim 2 or 3, wherein the fans of the vertically adjacent blower units of the at least two blower units rotate in opposite directions.

5. The air blowing device according to any one of claims 1 to 4, wherein the at least two air blowing portions each have two fans arranged in a top-bottom arrangement.

6. The air blowing device according to any one of claims 1 to 5, characterized in that the air blowing device includes:

a right air passage connecting the air blowing part of the at least two air blowing parts to the right blowing part; and

a left air passage connecting the remaining air blowing part of the at least two air blowing parts to the left air blowing part,

at least one of the right air duct and the left air duct is provided with an imparting unit that imparts air characteristics to air blown out from the air blowing unit.

7. The air supply device according to claim 6, wherein,

at least one of the right air path and the left air path has a branched air path in which a part of the air path is branched,

the applying portion is disposed in the branched air passage.

8. The air supply device according to claim 7, wherein,

the imparting unit is disposed in each of the branched air passages and imparts mutually different air characteristics.

9. A blowing device according to claim 7 or 8, characterized in that,

the branched air passages merge further toward the front than the right side air outlet portion or the left side air outlet portion.

10. The air blowing device according to any one of claims 6 to 9, characterized in that the air blowing device includes:

a right-side air direction changing unit that changes a direction in which air flowing along the right-side air path is blown out from the right-side blowing unit to a front side of the case; and

and a left-side air direction changing unit that changes the direction in which air flowing along the left-side air path is blown out from the left-side blowing unit to the front of the housing.