JPH0611063Y2 - air purifier - Google Patents

Description

TECHNICAL FIELD The present invention relates to a household air cleaner.

BACKGROUND ART FIG. 28 shows a perspective view of a conventional air cleaner, and FIG.
The figure shows an exploded perspective view. A filter block (b) for cleaning the intake air is placed in the opening on the front of the housing (b), and this filter block
The grill (c) is placed in front of (b). Rotate the motor (d) in the housing (b), suck the indoor air from the grill (c) with the fan (e), clean the air with the filter block (b), and place it on the top surface of the housing (b). Purified air is discharged from the discharge port (f) provided. Here, "strong" as air volume switching of the air purifier,
It is possible to switch the air volume between "weak" and 2 steps, but in the case of "weak" operation, a cement resistor partial pressure resistor is configured in series with the motor (d), and the partial pressure resistance block ( 28) was disposed near the discharge port (f) as shown in FIG.
As this arranging means, a rib (h) that can be inserted from the tongue part of the rib of the wind tunnel casing of the housing (a) to the discharge port (f) side is formed, and the voltage dividing resistance block (g) is formed on this rib (h). Had been inserted and fixed.

In such a conventional example, since the partial pressure resistor generates heat,
In order to lower the temperature, a partial pressure resistance block (g) was arranged near the discharge port (f), which is a blower passage part. Therefore, there is a problem that the voltage dividing resistance block (g) interferes with the air blowing, and there is also a problem that the voltage dividing resistance is visible from the lattice part of the discharge port (f) and the appearance is impaired.

[Object of the Invention] The present invention has been provided in view of the above-mentioned points, and is intended to cool a plate member provided with an electric component such as a voltage dividing resistor as a part of a peripheral wall of a wind tunnel casing, and to externally The purpose of the present invention is to provide an air purifier that cannot be seen from the outside.

DISCLOSURE OF THE INVENTION (Structure) The present invention is an air purifier that purifies and discharges air taken in by a blower, in which a part of a peripheral wall of a wind tunnel casing of the blower is cut out, and a lead wire is provided in the cutout. Having a plate member having a partial pressure resistance that allows the motor speed of the blower to be variable, and closing the cutout portion of the peripheral wall to dispose the plate member as a part of the peripheral wall of the wind tunnel casing. By applying wind to the surface to cool the electric parts provided in the plate material, and by making the surface of the plate material flush with the peripheral wall surface of the wind tunnel casing, it is possible to suppress wind leakage and noise generation. It is a thing.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a perspective view of the air purifier as seen from the front, FIG. 3 is a perspective view as seen from the back, and FIG. 4 is a sectional view. The air purifier of the present invention is roughly classified into a grill 1 for inhaling air and purifying it by a filter block FB, a bell mouth 2 for inhaling and guiding the purified air from the grill 1, and an inhalation from the bell mouth 2. It is composed of a housing 3 that discharges air by a motor, a fan, or the like.

Explaining from the grill 1 arranged on the front surface of the air purifier, the grill 1 has the following configuration. Referring to FIGS. 5 to 13, as shown in FIG.
A lattice portion 1a having a horizontal striped lattice is formed on the front surface of, and at the same time, ventilation holes are formed. On the back side of the grill 1, as shown in FIG. 8, is a filter block FB.
Are stored. That is, the inside of the entire circumferential rib 8 integrally provided on the rear surface of the grill 1 at the rear is provided with the filter block FB.
Is used as a filter storage portion 8a. In the filter housing 8a, from the front side, the pre-filter 4,
Dust filter 5, deodorant filter configured in a bellows fold
6 and 7 are stored. This filter block FB is the ninth
With the filter retainer 9 shown in the figure, the deodorant filter 7 is pressed from the back side and fixed to the grill 1 as shown in FIG. As shown in FIG. 8, a horizontal striped grid is formed only on the back surface of the grill 1 in the entire rib 8 in which the filter block FB is arranged, and ventilation holes are provided. A notch 10 having a rear opening is formed as a filter block FB take-out portion at substantially the center of both sides of the entire circumferential rib 8 of the grill 1. Further, a square hole 12 for accommodating the indicator 11 shown in FIGS. 5 and 6 is bored at the end of the upper surface of the grill 1, and the indicator 11 is accommodated and arranged in the accommodating portion 13 through the square hole 12. It Ventilation holes are formed in the front surface of the storage portion 13 as in the front surface of the grill 1. Also,
An indicator filter 11a is provided in the indicator 11 as shown in FIG.

Groove-shaped mounting portions 14 for mounting the filter retainers 9 and L-shaped mounting portions 15 facing each other are formed on both upper and lower sides of the entire circumferential rib 8 of the grill 1. As shown in FIG. 9, the filter retainer 9 has an upper portion bent into an L shape, and a protrusion 9b is integrally formed on the lower surface of the bent piece 9a. Also, there is a hole 9c at the bottom of the filter retainer 9.
Are bored, and projecting pieces 9d are provided on both sides of the hole 9c. Put the bent piece 9a of the filter holder 9 around the entire circumference rib 8
Of the bending piece 9a into the through hole 14a formed in the mounting portion 14 so that the filter holder 9 does not easily come off from the grill 1 even if it is pulled. There is. Further, the lower portion of the filter retainer 9 is inserted into the mounting portion 15 so that the protruding piece 9d is hooked on the inner surface of the mounting portion 15. The hole 9c provided at the center of the projecting piece 9d allows the filter holder 9 to be attached to the mounting portion 15 of the grill 1.
This is for facilitating the attachment / detachment when attaching / detaching inside, and the lower part of the filter retainer 9 is made to have elasticity. In this embodiment, two filter holding members 9 are used, but two or more may be used.

By the way, FIG. 10 shows a filter block FB in which the take-out piece 4a is projected to the back side of the grill 1 from the upper and lower center of the pre-filter 4 arranged closest to the ventilation hole of the grill 1. is there. With this take-out piece 4a, the protruding piece 9d of the filter retainer 9 is attached to the mounting portion 15 of the grill 1.
All the filters can be taken out at the same time by pulling out the take-out piece 4a of the pre-filter 4 when the filter block FB is taken out further.

11 and 12 show the bellows folding direction of the dust removing filter 5. As shown in the drawing, the bellows filter 5 is housed and arranged in the frame body 5a in accordance with the grid direction of the grid portion 1a of the grill 1. is there. Therefore, the filter block F
When B is placed in the entire circumference rib 8 of the grill 1 and viewed from the front of the grill 1, the grid of the grid portion 1a of the grill 1 and the bellows folding direction of the dust removal filter 5 are the same, so there is no discomfort and it is beautiful. It looks like.

Hooks 16 are fixed to the upper portions on both sides of the grill 1 by tapping screws 18 via leaf springs 17. That is, as shown in FIG. 8 and FIG. 13, the hook 16 is movably arranged in the lateral direction in the storage portion 21 provided on the rear surface of the grill 1, and the hook 16 has a long hole in the lateral direction. 1
The tapping screw 18 via 6a is screwed onto the boss 20 formed on the grill 1 via the washer 19, and the protrusion 16b of the hook 16 is attached to the side surface of the leaf spring 17 installed between the ribs 22. I am trying to hit it. The hook 16 can move laterally by the length of the long hole of the insertion hole 16a, and is biased to the position shown in FIG. 13 (a) by the elastic contact force of the leaf spring 17. FIG. 13C shows a state in which the hook 16 is pushed inward, and the hook 16 can be pushed in until the inner surface of the insertion hole 16 a hits the tapping screw 18. Further, as shown in FIG. 13 (b), an engaging piece 16 c is integrally formed on the back side (downward in the figure) of the hook 16, and the engaging piece 16 c is formed on the bell mouth 2. It is adapted to be inserted into the engaging hole 23 and engaged therewith. That is, in order to fix the grill 1 to the bell mouth 2, as shown in FIG. 4, the two engaging pieces 24 vertically provided from the lower surface of the grill 1 are provided with the engaging recesses formed on the upper surface of the lower portion of the bell mouth 2. Insert it into the place 25 from the upper side, then push both hooks 16 inward to fit the grill 1 into the opening surface of the bell mouth 2, and when the hooks 16 are released, the hooks 16 are released as shown in FIG. 13 (b). It returns by the restoring force of the leaf spring 17, and the hook 1
The engaging piece 16c of 6 engages with the engaging hole 23 of the bell mouth 2, and the grill 1 is fixed to the bell mouth 2.
Thus, when the grill 1 is attached or detached, the leaf spring 17 holding the hook 16 is bent by pressing the hook 16, and the grill 1 is attachable to and detachable from the bell mouth 2.

Next, the bell mouth 2 will be described. 4 and 1
As shown in FIG. 4, the upper surface of the bell mouth 2 is an inclined surface 26 that inclines toward the front side, and the upper surface of the indicator 11 is also the same inclined surface in accordance with the inclined surface 26. A switch operating portion 27 is provided on the inclined surface 26 of the bell mouth 2.
The switch operating portion 27 has a so-called tact switch configuration and can be turned on and off and the timer can be switched by lightly touching it. Switch operation unit 27
The printed board base 28 constituting the above is fixed to the boss portion of the housing 3 with screws at three points, and the printed board base 28 has a printed board 29 on which spring hooks and round bosses 30 are formed.
It is fixed at and. As shown in FIG. 26, a tact switch 31, a light emitting diode 32, and other electronic parts are mounted on the printed board 29. Printed board stand 28
Is pressed by a part of the bell mouth 2, and the switch operating portion 27 is composed of a molded product spring 33 integrally molded with the bell mouth 2, and the molded product spring 33 moves the tact switch 31 on the printed board 29 upward. It can be turned on and off by pressing. A switch name plate 34 is attached to the upper surface of the molded spring 33 of the bell mouth 2 by a sheet of polyester film.

As shown in FIG. 14, two engaging recesses 25 into which the engaging pieces 24 of the grill 1 are inserted are formed on the lower surface of the bell mouth 2. A suction port 35 is formed in a substantially central portion of the bell mouth 2 as shown in FIG. 4 so as to face a fan of a housing 3 which will be described later, and a lattice 36 is radially formed integrally with the bell mouth 2 on the front side of the suction port 35. Has been formed. Also, this lattice 3
6, a plurality of circular lattices 37 each having a height lower than that of the lattice 36 are integrally formed. The deodorizing filter 7 is in contact with the radial lattice 36, and the deodorizing filter 7 is not in contact with the circular lattice 37 so that a gap is created. The opening portion of the bell mouth 2 is a grill storage portion 38, and a rib 39 is integrally formed around the grill storage portion 38 over the entire circumference. The height of the rib 39 is the same as the height of the grid 36, and the rib 39 presses the entire circumference of the back surface of the filter block FB of the grill 1 housed in the grill housing section 38.
The airtightness between the filter block FB and the bell mouth 2 of FIG. A rib 40 is formed integrally with the rib 39 in the same height as the rib 39 and in the same direction as the radial lattice 36. The rib 40 is not continuous with the radial grid 36 and is cut in the middle. In such a configuration, the ribs 39 are provided on the entire circumference of the grill accommodating portion 38, so that when the fan rotates, the flow of air flows from the ventilation holes of the lattice portion 1a of the grill 1 to the pre-filter 4 and dust removal. Through the filter 5 and the deodorizing filters 6 and 7, the air is blown from the suction port 35 of the bell mouth 2 through the air passage of the housing 3 by the force of the centrifugal fan and from the projecting port. In particular, since the circular lattice 37 is lower in height than the radial lattice 36 on the side of the suction port 35, the flow of wind is improved, and the wind passing through the filter block FB is evenly distributed in the suction port 35 of the bell mouth 2. The pressure loss in the air flow passage is reduced. Further, since the filter block FB does not adhere to the lattice 37, the suction efficiency is improved.

Next, the housing 3 to which the bell mouth 2 is attached will be described. In FIG. 4 and FIG. 15, first, the discharge port 41 is provided in the upper part of the housing 3, and the bell mouth 2
The design clearance between the housing and the housing 3 is
It is provided so as to match the line of the grid 41a. Inside the housing 3, the motor 42 sandwiches the back plate 3a of the housing 3 with three fixing portions of the motor bracket using the vibration-proof rubber 43 and the sleeve 44, and the motor fixing plate 45 on the back side of the housing 3 is provided. On the screw 46
It is fixed by. The fan 47 located in the housing 3 is screwed and fixed to the rotor 42a of the motor 42 by screws 49 above and below via a fan reinforcing plate 48.
Further, the peripheral wall 51 of the molded product forming the wind tunnel casing 50 is formed from the housing 3 so as to have an Archimedean spiral shape, and the bell mouth 2 and the printed board board 28 are formed.
And the peripheral wall 51 form a wind tunnel casing 50. The discharge port 41 is provided in a part of the wind tunnel casing 50.
Is formed.

By the way, when switching between "strong" and "weak" in the operation of the air purifier, a voltage dividing resistor is connected in series to the motor 42 in the case of "weak" operation. Since the voltage dividing resistor generates heat, the voltage dividing resistor is fixed to a fixed plate which also serves as a heat radiating plate. A voltage dividing resistor block 52 including this voltage dividing resistor is shown in FIGS. 16 and 17. That is, the voltage dividing resistor 53 is fixed to the fixing plate 54 by the fixing piece 55 provided on the fixing plate 54 also serving as a heat dissipation plate. The fixed plate 54 is
As shown in FIG. 1 and FIG. 19, the insert piece 54c is formed in a substantially U-shape, and the insert pieces 54c are formed on both sides thereof so as to be inserted into the grooves 63 of the rib 63a formed on the peripheral wall 51 of the wind tunnel casing 50, which will be described later. The cut-and-raised piece 57 is cut and raised on the insertion piece 54c to prevent the fixed plate 54 from coming off, as will be described later. The temperature fuse 56 is also fixed together with the voltage dividing resistor 53. That is, the voltage dividing resistor 53 is fixed by the fixing piece 54a formed on the fixing plate 54, and the thermal fuse 56 is placed on the voltage dividing resistor 53 and fixed.
It is fixed at b. Further, lead wires 53a and 56a are led out from the voltage dividing resistor 53 and the temperature fuse 56, respectively. The voltage dividing resistance block 52 is formed by cutting out a part of the wind tunnel casing 50 closest to the lead wire 58 of the motor 42 to which the housing 3 is attached.
This is arranged. That is, as shown in FIG. 15, in the wind tunnel casing 50 facing the fan 47 on the blower passage side of the bent portion 50a of the wind tunnel casing 50, the fixing plate 54 of the partial pressure resistance block 52 is placed on the blower passage side to form the partial pressure resistance block. 52 is provided.

Between the lead-out portion of the lead wire 58 of the motor 42 and the wind tunnel casing 50, in order to facilitate the wiring of the lead wire 58 of the motor 42, as shown in FIG.
A groove 60 constituted by 9 is provided. At the tip portion of the groove 60, a projection piece 62 that locks the tip of a lead wire retainer 61 that holds the lead wire 58 wired in the groove 60.
Is formed by so-called slicing of the mold. In addition, the peripheral wall 51 forming the wind tunnel casing 50 on both sides of the cutout portion 50b cut out for disposing the voltage dividing resistance block 52.
A rib 63a having the above-mentioned groove 63 formed inside is formed at the end of the notch 50b side. The fixing plate 54 of the voltage dividing resistance block 52 is inserted into the groove 63, and the cut and raised piece 57 is inserted.
The fixing plate 54 is pressed against the inner surface of the groove 63 to prevent the fixing plate 54 from coming out of the groove 63. On the other hand, as shown in FIG. 18, the lead wire 58 from the motor 42 passes through between the two protruding pieces 62, 62, is wired in the groove 60, and is brought to the outside of the wind tunnel casing 50. Connect to 29. The lead wire 58 is covered with a lead wire retainer 61, and one end of the lead wire retainer 61 is inserted and locked in the protrusion 62 so that the lead wire retainer 61 is flush with the inner peripheral surface of the wind tunnel casing 50. The other end of the lead wire holding tool 61 formed in a substantially L shape is pressed and fixed by the fixing plate 54 of the voltage dividing resistance block 52. As shown in FIG. 20, the fixing plate 5 of the voltage dividing resistor block 52 is held with the other end of the lead wire holder 61 held down.
The height of 4 is the same as the height of the wind tunnel casing 50. Then, the front peripheral surface of the peripheral wall 51 forming the wind tunnel casing 50 is covered with the bell mouth 2 to form an air blowing path. As described above, the motor 42
Notch 50 at the position closest to the lead wire 58
Since the b is formed and the voltage dividing resistance block 52 is provided in the notch 50b for wiring, the internal wiring can be shortened.

As shown in FIG. 20, the fixing plate 54 is fixed by inserting the insertion piece 54c into the groove 63 of the rib 63a formed on the peripheral wall 51 of the wind tunnel casing 50 as shown in FIG.
Further, the surface of the fixed plate 54 is formed into a rounded shape so as to be uniform with the surface of the peripheral wall 51. The fixing plate 54 and the lead wire retainer 61 may be integrally formed so that the lead wire retainer 61 also serves as the fixing plate 54.

The motor fixing plate 45 for fixing the motor 42 is arranged flush with the back surface of the back plate 3 a of the housing 3. That is, as shown in FIG. 3 and FIG.
The central portion of the back plate 3a is a rectangular recess 64 that is recessed toward the front side.
Are integrally formed, and a concave step portion 65 is formed around the concave portion 64, and the motor fixing plate 45 is flush with the back surface of the back plate 3a by the screw 46 in the concave step portion 65. It is arranged. As shown in FIGS. 3 and 21, the motor fixing plate 45 is formed in a square plate shape, and a notch portion 45b is opened at the center thereof, and a holding piece 45a is formed so as to project into the notch portion 45b. It is formed integrally. In addition, three screw holes 45c are formed around the cutout portion 45b into which screws 46 for fixing the motor 42 are screwed. The holding piece 45a is located corresponding to the recess 64 of the housing 3. As described above, the motor fixing plate 45 is arranged in the recessed step portion 65 formed on the back surface of the housing 3, and the housing 3 is sandwiched by the motor fixing plate 45 to sandwich the motor 4
Since 2 is fixed, the housing 3 and the motor fixing plate 45 can be flush with each other even if the motor fixing plate 45 is used, and the design is neat.

The holding piece 45a formed on the motor fixing plate 45 is used for suspending and fixing the air purifier on the wall surface. In this case, the wall-hanging fixture shown in FIGS. 22 and 23 is used. 66 is used. As shown in the drawing, the wall-hanging fixture 66 has a mounting piece 66b formed by inserting insertion holes 66c from both ends of a central piece 66a formed in a substantially U shape. The recess 64 of the housing 3 is recessed according to the protrusion amount of the central piece 66a of the wall-hanging fixture 66. When the air purifier is mounted on a wall surface or a pillar, the air purifier is mounted upside down, and the state is shown in FIG. The wall hanging fixture 66 is arranged at a predetermined position on the wall surface 67, and the mounting screw 68 is screwed to the wall surface 67 through the insertion hole 66c to fix the wall hanging fixture 66. Then, the central piece 66a of the wall-hanging fixture 66 is inserted into the recess 64 on the back surface of the air purifier via the cutout portion 45b of the motor fixing plate 45, and the air purifier is moved downward to move the motor fixing plate 45. Holding piece 45
a is inserted and locked inside the central piece 66a of the wall-hanging fixture 66. Therefore, the air purifier is mounted on the wall surface 67 by the motor fixing plate 45 and the wall hanging fixture 66.
As described above, since the protrusion amount of the central piece 66a of the wall-hanging fixture 66 and the recess amount of the recess 64 of the housing 3 of the air purifier are matched, even if the air purifier is attached to the wall surface 67, FIG. As shown in, the clearance between the air purifier and the wall surface 67 is reduced, and the air cleaner can be mounted substantially parallel to the wall surface 67. Therefore, it is not necessary to use a member such as a cushion in order to mount the air purifier parallel to the wall surface 67. Although the air purifier is attached to the wall surface 67 as described above, the foot portions 69a and the bottom surface of the bell mouth 2 and the housing 3 are respectively provided in correspondence with the case where the air purifier is located on the floor. 69b is formed.

Next, the operation switch when the air purifier is attached to the wall surface 67 will be described. FIGS. 3 and 25 to 27
In the figure, as shown in FIG. 26, a printed board base 28 is disposed between the housing 3 and the bell mouth 2, and an arm 70 is attached to the printed board base 28. That is, the rotation fulcrum portion of the arm 70 is inserted into the shaft supporting portion 28a formed on the upper part of the printed board 28 so that the arm 70 is rotatably supported by the shaft supporting portion 28a. Further, an arm spring 71 is used for the shaft support portion 28a to give a click feeling and at the same time, a tension force of the drawstring 72 is applied. One end of the arm 70 is an operation piece 70
The operation piece 70a is formed adjacent to the tact switch 31, which is a pull switch mounted on the printed board 29 and used during suspension. Arm 7
A hook-shaped hook portion 70b is formed at the other end of 0,
The hook portion 70b is located on the back side through the hole 3b formed in the housing 3, and the tip of the drawstring 72 is attached to the hook portion 70b.

When the drawstring 72 is pulled when the wall of the air purifier is used as shown in FIG. 27, the arm 70 rotates about the shaft support 28a on the printed board 28, and the operating piece 70a of the arm 70 switches the tact switch. Turn on 31. When the tension of the drawstring 72 is removed, the arm spring 71 returns to the original position. In the following, it is possible to sequentially switch between the 1-puku mode, strong, weak, and off each time the pull string 72 is pulled. A knob 73 is provided at the end of the drawstring 72 so that it can be held by hand during operation. As shown in FIGS. 3 and 25, the drawstring 72 and the knob 73 are located on the back surface of the air purifier. is doing. The length of the drawstring 72 is set to 250 mm or more so that the knob portion 73 can be reached when the air purifier is hung on a wall. The knob portion 73 of the drawstring 72 is housed on the back surface of the housing 3 so that the knob portion 73 does not flutter when the stationary air cleaner is used.

That is, as shown in FIG. 25, a recess 74 for accommodating the knob portion 73 of the drawstring 72 is formed on the back surface of the housing 3 and at a position recessed from the back surface of the housing 3.
This concave portion 74 is formed outside the wind tunnel casing 50 in the housing 3, and as shown in FIG. 25 (c), a knob portion is formed in the molding boss 76 for fastening the fixing screw of the housing 3 and the bell mouth 2. A recess 74 for accommodating 73
Is formed. That is, the boss 76 that integrally projects from the housing 3 and the boss 77 that integrally projects from the bell mouth 2 are combined, and the space between both bosses 76 and 77 is tightened with the tapping screw 75 to form the wind tunnel casing 50. I have to. At this time, the boss 76 from the housing 3 becomes considerably high, molding releasing conditions and the like become difficult, and the design of the back surface is also wrong at any portion of the back surface of the housing 3, that is, when the recess 74 for storage is provided. Therefore, the knob portion 73 can be inserted and stored in the base portion of the boss 76 of the housing 3, and the recess portion 74 having a large radius is formed on the back surface so that the knob portion 73 of the drawstring 72 can be easily inserted or removed. It is what The knob portion 73 of the drawstring 72 is the drawstring 7
It is also possible to insert it into the concave portion 74 together with 2, and it is also possible to insert only the knob portion 73. It should be noted that when the knob portion 73 is housed in the recess 74, as shown in FIG.

[Advantages of the Invention] As described above, the present invention is an air purifier that purifies and discharges air taken in by a blower, in which a part of a peripheral wall of a wind tunnel casing of the blower is cut out and a lead wire is provided in the cutout. With a plate member having a partial pressure resistance that allows the speed of the blower motor to be variable, the plate member is used as a part of the peripheral wall of the wind tunnel casing. It is possible to cool the electric parts provided on the plate material by arranging and blowing air to the surface of the plate material, and moreover, there is an effect that the electric parts are not seen from the discharge port as in the conventional case. Since the surface of the plate material is flush with the peripheral wall surface of the wind tunnel casing, it is possible to suppress wind leakage and noise generation.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a main part of the present invention, FIG. 2 is a perspective view of the air purifier of the same as seen from the front side, and FIG. 3 is a perspective view of the air purifier of the same embodiment as seen from the back side. Fig. 4 is a sectional view of the same as above, Fig. 5 is a perspective view of the above grill, Fig. 6 is a perspective view of the above indicator, and Fig. 7 is a perspective view of the above grill seen from the back side. 8 is an exploded perspective view of the above grill and filter block, FIG. 9 is a perspective view of the above filter retainer, FIG. 10 is a perspective view of the above grill viewed from the back side, and FIG. 11 is the above grill. Fig. 12 is an exploded perspective view of Fig. 12 is a sectional view of the dust filter of the same as Fig. 13 (a).
Is an enlarged rear view of an essential part of the same, FIG. 13 (b) is an enlarged sectional view of an essential part of the same, FIG. 13 (c) is an enlarged rear view of an essential part showing a state in which the hook is pushed, and FIG. FIG. 15 is a perspective view of the same housing with the grill removed, FIG. 15 is a rear view of the same housing, and FIG. 16 is a perspective view of the same voltage dividing resistor block as the first.
7 (a) to 7 (c) are a plan view, a front view and a side view of the voltage dividing resistor block of the above, and FIG.
FIG. 9 is a perspective view of the fixed plate, FIG. 20 is a perspective view of a main part showing a state where the fixed plate is attached to the wind tunnel casing, and FIGS. 21 (a) (b).
Is a front view and a cross-sectional view of the same motor fixing plate, FIG. 22 is a perspective view of the same wall hanging fixture, and FIGS. 23 (a) to (c) are rear views, side views and front views of the same wall hanging fixture. Figure, Figure 24 is a cross-sectional view of the same air purifier when it is wall-mounted, Figure 25 (a)
~ (C) is a rear view of the air purifier of the same as above, a plan view of a main part and a side view of the main part broken, Figs. 26 and 27 are enlarged cross-sectional views of the main part of the same, respectively, and Fig. 28 is an air diagram of a conventional example. Perspective view of the purifier,
FIG. 29 is a sectional view of a conventional example. 42 is a motor, 50 is a wind tunnel casing, 51 is a peripheral wall, 5
3 is a voltage dividing resistor, 54 is a fixed plate, 57 is a cut-and-raised piece, 5
Reference numeral 8 is a lead wire and 63 is a groove.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-60-244321 (JP, A) Actually open 59-146017 (JP, U) Actually open 59-146024 (JP, U)

Claims (3)

[Scope of utility model registration request] 1. An air purifier for purifying and discharging air sucked by a blower, wherein a part of a peripheral wall of a wind tunnel casing of the blower is cut out, and a lead wire is provided in the cutout portion, and An air purifier characterized in that a plate member having a partial pressure resistance that allows variable speed is mounted to close a notch portion of a peripheral wall, and a surface of the plate member is flush with a peripheral wall surface of the wind tunnel casing. 2. A lead wire retainer for pressing a motor lead wire in which a motor lead wire is provided in a groove is provided, a groove is formed in an end face of a cutout portion of a wind tunnel casing, and a cut-and-raised piece is formed at an end portion of the plate member. Characterized in that the cut-and-raised piece is inserted, the cut-and-raised piece is inserted into the groove to dispose the plate member in the cutout portion of the wind tunnel casing, and the lead wire retainer is abutted and fixed by the lower end surface of the plate member. The air purifier according to claim 1 of the utility model registration claim. 3. The air purifier according to claim 1, wherein the plate material also serves as a lead wire retainer for retaining the lead wire of the motor.