JP4263138B2 - Air cleaner - Google Patents

Description

  The present invention relates to an air cleaner.

  Prior art document information related to the air cleaner of the present invention includes the following.

JP 2003-343886 A

  In this patent document 1, the air cleaner provided with the main body case, the front cover which covers the front surface of this main body case, and the rear surface cover which covers the rear surface of the said main body case is provided. In this air purifier, a partition wall is provided in the main body case, a partition wall constituting an involute passage projects from the partition wall, and a sirocco fan that can be sucked from the front and rear in the axial direction is disposed therein. . Further, the main body case is provided with filters so as to be positioned on the front surface and side surfaces thereof. Or the filter is arrange | positioned so that it may be located in a front surface and a rear surface. And the said main body is provided with the suction hole in the front surface, rear surface, and both side surfaces, and is comprised so that external air can be attracted | sucked from four directions. The sucked outside air passes through one of the filters and is purified, and then the clean air flows into the involute passage from before and after the sirocco fan and is circulated and supplied to the outside.

  However, in the air purifier of Patent Document 1, it is necessary to project the partition wall with a projection length that is at least about 10 mm added to the thickness of the sirocco fan. There is a problem that is likely to occur. And when a deformation | transformation arises in the said partition, since sealing performance will fall and a clearance gap will arise in an involute channel | path, there exists a problem that the cleaning efficiency of air also falls.

  Therefore, an object of the present invention is to provide an air purifier capable of preventing the deformation of the partition walls constituting the involute passage and maintaining the air cleaning efficiency.

In order to solve the above-mentioned problems, the air cleaner of the present invention sucks outside air with a fan disposed inside the main body, cleans the sucked air through a filter, and then circulates and supplies the clean air to the outside. In the machine, the main body includes an inner case composed of a pair of split cases each projecting a partition wall constituting an involute passage in which the fan is disposed, and an outer cover covering at least the front and rear surfaces of the inner case. The split case is provided with a vent so as to be located in the partition wall, and provided with a filter disposing portion on the surface thereof, and the filter is disposed between the inner case and the outer cover. in, the fan includes a base forming an annular, a plurality of blades protruding to the base and perpendicular to the direction, and a motor mounting unit located at the center of the base A connecting portion connecting the base and the motor mounting portion, and a rib which constitutes the fin for projecting blown from both sides of the connecting portion consists of sirocco fans which enables sucking the air from the front and rear axial configuration It is said.

  In this air cleaner, it is preferable that the ends of the partition walls of the pair of split cases overlap at the approximate center in the thickness direction of the fan.

  Further, the outer cover includes a front cover that covers from the front surface to both side surfaces of the inner case, and a rear cover that covers from the rear surface to both side surfaces of the inner case. It is preferable that a hole is provided and a notch is provided in at least one of the side-surface blocking portions of each cover so that outside air can be sucked from the front and rear intake holes and the left and right notches.

  In the air purifier of the present invention, the main body includes an inner case and an outer cover in which the fan is disposed, and the inner case supplies clean air to the outside and an involute passage in which the fan is disposed. Since the partition part which comprises this is set as the structure which protruded from a pair of division | segmentation case, the protrusion length of a partition part can be made small. Therefore, it is possible to greatly suppress production errors and deformation due to use, and it is possible to suppress a decrease in air cleaning efficiency.

  In addition, since the ends of the partition walls in the pair of split cases are configured to overlap at substantially the center in the thickness direction of the fan, the sealing performance can be improved and the air cleaning efficiency can be improved. . Furthermore, since the fan is a sirocco fan that can suck air from the front and rear in the axial direction, the efficiency of sucking outside air can be increased, and as a result, the efficiency of cleaning air can be further improved. Furthermore, since the outer cover includes a front cover and a rear cover, and can suck outside air from the front and rear intake holes formed in these covers and the left and right cutouts, the outside air suction efficiency can be improved. As a result, the air cleaning efficiency can be further improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 and 2 show an air cleaner according to an embodiment of the present invention. This air cleaner generally comprises a main body 10, a fan 56, and filters 64A and 64B. The air is sucked by the fan 56, and the sucked air is purified through the filters 64A and 64B. Is circulated and supplied to the outside.

  As shown in FIGS. 1 and 3, the main body 10 includes an inner case including a pair of split cases 11 and 21 that house the fan 56 and have the filters 64A and 64B disposed on both front and rear sides. It consists of an outer cover consisting of a pair of front and rear covers 34, 40 covering the surface of the case, and a top cover 48 covering the air outlet of clean air, all of which are made of synthetic resin.

  The front division case 11 constituting the inner case includes a front wall portion 12 extending in the vertical direction, and a substrate arrangement portion 14 for arranging the operation substrate 13 is provided at the upper end of the front wall portion 12 and is installed at the lower end. The first pedestal portion 15 is formed. The substrate placement portion 14 and the first pedestal portion 15 are provided so as to protrude in the front-rear direction with respect to the front wall portion 12, and the filter 64 A is provided on the front (outer) surface of the front wall portion 12 by the protruding portion. A first filter disposing portion 16 for disposing is formed. The first filter placement portion 16 has a step portion 17 for positioning the filter 64A so that a predetermined gap is formed between the first filter placement portion 16 and the front wall portion 12 in a state where the filter 64A is disposed.

  Further, on the inner side surface (rear surface) of the front wall portion 12, a first partition wall portion 18 that projects clean air to the outside and constitutes the involute passage 31 in which the fan 56 is disposed protrudes. Further, the front wall portion 12 is provided with a plurality of first ventilation holes 19 so as to be located in the first partition wall portion 18. Furthermore, a first fitting portion 20 having a substantially C-shaped cross section is provided on the upper side of the substrate placement portion 14 in order to fit and fix the top cover 48.

  The rear divided case 21 constituting the inner case has a substantially symmetric configuration with the front divided case 11. Specifically, the rear divided case 21 includes a rear wall portion 22 extending in the vertical direction, a carrying recess 23 is provided at the upper end of the rear wall portion 22, and a second pedestal for installation is provided at the lower end. The part 24 is formed. The holding recess 23 and the second pedestal 24 are provided so as to protrude in the front-rear direction with respect to the rear wall 22, and the filter 64 </ b> B is disposed on the front (outer) surface of the rear wall 22 by the protruding portion. The 2nd filter arrangement | positioning part 25 for doing is formed. The second filter disposing portion 25 has a step portion 26 for positioning the filter 64B so that a predetermined gap is formed between the second filter disposing portion 25 and the rear wall portion 22 in a state where the filter 64B is disposed.

  Further, on the inner side surface (front surface) of the rear wall portion 22, a second partition wall portion 27 that projects clean air to the outside and constitutes the involute passage 31 in which the fan 56 is disposed is projected. Further, a plurality of second vent holes 28 are provided in the rear wall portion 22 so as to be positioned in the second partition wall portion 27. Furthermore, a second fitting portion 29 is provided on the upper side of the substrate disposing portion 14 in order to fit and fix the top cover 48.

  The partition portions 18 and 27 of the split cases 11 and 21 have spiral shapes with upper end openings, and project in dimensions that extend to the approximate center of the fan 56 in the thickness direction. As shown in FIG. 1, engagement portions 30 a and 30 b that overlap and engage with each other are provided at the leading edges of the partition walls 18 and 27. These divided cases 11 and 21 are configured to be assembled with each other by screwing so as to form one involute passage 31 with the partition portions 18 and 27. In FIG. 3, 32 a and 32 b are fixing holes for fixing a front cover 34 and a rear cover 40 to be described later via the fixing member 33.

  The front cover 34 that constitutes the outer cover covers the front surface of the inner case from the front surface to both side surfaces, and a front recess portion 35 is provided with a first recess 36 that is recessed inward. A first intake hole 37 for sucking indoor air (outside air) is provided on the upper surface. The front side blocking portion 38 of the front cover 34 has a substantially right triangle shape that is inclined rearward from the upper end of the front blocking portion 35, and a first fixing hole for engaging the fixing member 33 in the lower portion on the rear side. 39 is provided.

  The rear cover 40 constituting the outer cover covers the rear surface of the inner case from the rear surface to both side surfaces. The rear surface blocking portion 41 is provided with a second concave portion 42 that is recessed inward. A second intake hole 43 for sucking indoor air is provided on the upper surface. In addition, the rear surface closing portion 41 is provided with an opening 44 corresponding to the grip recess 23. The rear cover closing portion 45 of the rear cover 40 has a shape in which upper and lower edges thereof are in contact with upper and lower edges of the front side closing portion 38 of the front cover 34 and a notch 46 is provided between them. A second fixing hole 47 for engaging the fixing member 33 is provided.

  As shown in FIGS. 2 and 4, the covers 34 and 40 suck air from the front and rear intake holes 37 and 43 and the left and right cutouts 46 and 46 when assembled to the inner case via the fixing member 33. be able to.

  The top cover 48 covers a clean air outlet which is the upper end of the involute passage 31 formed by assembling the divided cases 11 and 21, and as shown in FIG. The radiating member 53 is detachably disposed in the main body 49 and the radiating member cover 54 is detachably attached to the cover main body 49 so as to cover the radiating member 53.

  The cover main body 49 is substantially the same as the upper end shape in a state in which the divided cases 11 and 21 constituting the inner case are assembled, and the lower end edge of the cover main body 49 is a convex portion that is fitted to the fitting portions 20 and 29. 50 is provided. In addition, in the upper center of the cover main body 49, a radiating member 53 is provided, an attachment portion 51 for engaging the radiating member cover 54 is provided, and a lattice-like blowing portion 52 is provided on both sides thereof. .

  The diffusion member 53 is disposed in the mounting portion 51 and is used to supply vitamins and catechins together indoors with clean air circulated and supplied from the involute passage 31 into the room. It is a lattice-like thing formed and contained.

  The dissipating member cover 54 is composed of a grid-like frame that covers the upper surface of the mounting portion 51. Locking portions 55 to the mounting portion 51 are provided on both sides of the radiating member cover 54.

  The fan 56 is rotated by a motor 57 as drive means. As shown in FIGS. 1 and 5A, 5B, 5C, an annular base 58 and a base 58 are provided. A sirocco fan comprising a plurality of blade portions 59 projecting in a direction orthogonal to the motor, a motor mounting portion 60 located at the center of the base 58, and a connecting portion 61 connecting the base 58 and the motor mounting portion 60. Become. The lower end of the blade part 59 is connected by a ring-shaped flange part 62. The base 58 and the motor mounting portion 60 are located at a predetermined interval along the axial direction of the fan 56, which is the extending direction of the blade portion 59, and the connecting portion 61 is provided in the axial direction of the fan 56 in order to connect them. And a curved shape along the direction of rotation by the motor 57. The connecting portion 61 is provided with ribs 63a and 63b projecting from both sides in order to form a blowing fin.

  When the fan 56 configured as described above is rotated by the motor 57, the air located in the space inside the fan 56 is sent out in the diameter direction outward by the blade portion 59. Thereby, air mainly flows into the space surrounded by the blades 59 from the wide open end (inside the flange 62). Further, the air located on the axially outer side of the base 58 is scraped off by the connecting portion 61 and the ribs 63a and 63b provided on the connecting portion 61 so that the outside air is directed to the inside surrounded by the blade portion 59. And blow. That is, the connecting portion 61 serves not only for connecting the base 58 and the motor mounting portion 60 but also as a second blade portion. Therefore, air can be introduced into the inside from both axial sides (front and rear sides) of the fan 56 in FIG. 1, and the air can be sent into the room from the upper outlet through the involute passage 31.

  Each of the filters 64A and 64B includes a pair of a dust collection filter 65 and a deodorizing filter 66. The dust collection filter 65 is composed of a HEPA (High Efficiency Particulate Air) filter having an initial dust collection efficiency of 99.97% or more for fine particles of 0.3 μm. The deodorizing filter 66 is an activated carbon filter in which activated carbon is contained in a base material.

  In the air purifier configured as described above, the main body 10 includes an inner case and an outer cover in which the fan 56 is disposed, and the inner case includes partition walls 18 and 27 that constitute the involute passage 31. Since it is set as the structure protruded from a pair of division | segmentation cases 11 and 21, the protrusion length of each partition part 18 and 27 can be made small. Therefore, it is possible to greatly suppress production errors and deformation due to use, and it is possible to suppress a decrease in air cleaning efficiency. In other words, in this type of air purifier, it is preferable to use a large fan 56 in order to improve the cleaning efficiency. The problem of deformation is likely to occur. However, in the present embodiment, such a problem can be prevented from occurring even when the large fan 56 is used.

  In addition, since the ends of the partition walls 18 and 27 in the pair of split cases 11 and 21 are overlapped at substantially the center in the thickness direction of the fan 56, the sealing performance can be improved and the air can be purified. Efficiency can be improved.

  When the air purifier is connected to a commercial power source and starts an air purifying operation, the fan 56 rotates, and the air in front of the air purifier is the first intake air of the front cover 34 as shown in FIG. The air is sucked into the main body 10 from the hole 37, the rear air is sucked into the main body 10 from the second intake hole 43 of the rear cover 40, and the air on the left and right sides is sucked into the main body 10 from the notch 46. .

  Then, the air sucked from the first intake hole 37 of the front cover 34 is purified by passing through the front filter 64A and reaches the involute passage 31 in the divided cases 11 and 21. Further, the air sucked from the second intake hole 43 of the rear cover 40 is purified by passing through the rear filter 64B and reaches the involute passage 31 in the divided cases 11 and 21. Further, a part of the air sucked from the notches 46 on both sides is detoured forward of the split cases 11 and 21 and passes through the filter 64A in the front to be cleaned into the involute passage 31, and the rest is split. By detouring to the rear of the cases 11, 21 and passing through the rear filter 64 </ b> B, it is cleaned and reaches the involute passage 31.

  In this way, the clean air that has flowed into the involute passage 31 is sent outward from the inside surrounded by the blade portion 59 of the fan 56, and is circulated and supplied into the room from the top outlet through the involute passage 31. At this time, vitamins and catechins contained in the radiation member 53 are supplied (radiated) together with clean air passing through the radiation member 53.

  Thus, in this embodiment, since the fan 56 is a sirocco fan that can suck air from the front and rear in the axial direction, the efficiency of sucking outside air can be improved, and as a result, the air cleaning efficiency is further improved. can do. Moreover, the outer cover includes the front cover 34 and the rear cover 40, and can suck outside air from the front and rear intake holes 37, 43 formed in the covers 34, 40 and the left and right cutouts 46, 46. The suction efficiency of the outside air can be increased, and as a result, the air cleaning efficiency can be further improved.

  In addition, the air cleaner of this invention is not limited to the structure of the said embodiment, A various change is possible.

  For example, in the above-described embodiment, the engaging portions 30a and 30b that are engaged with the distal ends of the partition walls 18 and 27 in the pair of split cases 11 and 21 at the approximate center in the thickness direction of the fan 56 are overlapped. Although provided, the partition portions 18 and 27 may be simply overlapped so as to contact each other without engaging each other.

It is a longitudinal section showing an air cleaner concerning an embodiment of the present invention. It is a cross-sectional view of FIG. It is a disassembled perspective view of an air cleaner. It is a perspective view of the air cleaner of an assembly state. A sirocco fan is shown, (A) is a front view, (B) is a sectional view, and (C) is a rear view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Main body 11 ... Front side division case 12 ... Front wall part 18 ... 1st partition part 19 ... 1st ventilation hole 21 ... Rear side division case 22 ... Rear wall part 27 ... 2nd partition part 28 ... 2nd ventilation hole 30a, 30b ... engagement portion 31 ... involute passage 34 ... front cover 35 ... front obstruction portion 37 ... first intake hole 40 ... rear cover 41 ... rear obstruction portion 43 ... second intake hole 48 ... top cover 56 ... fan 57 ... motor 58 ... Base 59 ... Blade part 60 ... Motor mounting part 61 ... Connecting part 63a, 63b ... Rib 64A, 64B ... Filter

Claims (3)

In an air cleaner that sucks outside air with a fan arranged inside the main body, cleans the sucked air through a filter, and then circulates the clean air to the outside.
The body includes an inner case made of a pair of split cases the partition wall portion is protruded respectively constituting the involute passage for disposing the fan therein, and an outer cover for covering at least the front and rear surfaces of the inner casing, wherein The split case is provided with a ventilation hole so as to be located in the partition wall part, and a filter disposing part is provided on the surface thereof, and the filter is disposed between the inner case and the outer cover.
The fan includes an annular base, a plurality of blade portions projecting in a direction orthogonal to the base, a motor mounting portion located at the center of the base, and a connecting portion that connects the base and the motor mounting portion. And an air purifier comprising a sirocco fan that protrudes from both sides of the connecting portion and constitutes a fin for blowing air and that can suck air from the front and rear in the axial direction .   The air cleaner according to claim 1, wherein the ends of the partition walls in the pair of split cases are overlapped at substantially the center in the thickness direction of the fan. The outer cover includes a front cover that covers from the front surface to both side surfaces of the inner case, and a rear cover that covers from the rear surface to both side surfaces of the inner case, and has an intake hole in each of the front blocking portion and the rear blocking portion of each cover. 3. The device according to claim 1 , wherein a cutout portion is provided in at least one of the side-surface closed portions of each cover so that outside air can be sucked from the front and rear intake holes and the left and right cutout portions. Air cleaner.

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