JPS63258615A - Air cleaner - Google Patents

Abstract

PURPOSE:To obtain an air cleaner whose external view does not provide a user with any unpleasant feeling by a design in which the fouled condition of an indicator is not visible directly through an auxiliary suction hole communicating to the indicator for checkup at the time of filter block replacement. CONSTITUTION:An air cleaner is provided with a separate auxiliary suction hole which supplies air to an auxiliary suction blast path 91 in addition to a suction hole 35 for a filter block of a grill. Inside this auxiliary suction hole, an indicator 11 for checkup at the time of filter block replacement is mounted in freely removable manner. A suction aperture of the indicator 11 is provided at a deviated position in a direction crossing the auxiliary suction hole directly before and after the latter. Consequently, the fouled condition of the indicator is not visible directly, and, therefore, the purifier presents a better appearance, thus giving no unpleasant feeling to the user.

Description

[Detailed Description of the Invention] [Technical Field 1] The present invention has an indicator that displays the degree of dirtiness of a filter, and is used for household use to purify the air inside a room or a car by removing dust, dust, odor, etc. from the air. It relates to air purifiers for automobiles and the like.

[Background Art 1] Conventionally, in a household air purifier having an indicator for displaying the degree of contamination of the filter, Japanese Patent Laid-Open No. 59-21 has been used as a display means for indicating the degree of contamination of the filter.
There was something like the one shown in Publication No. 7430. In other words, a window was opened in the front cover of the air purifier, and the purification filter inside was exposed through this window. This is because the internal filter is directly visible through the window, so if the filter becomes dirty from using an air purifier, the dirt will be directly visible, which will not look good and will give a feeling of discomfort.

[Objective of the Invention J The present invention has been provided in view of the above-mentioned points, and provides an air purifier whose purpose is to improve the appearance by making the degree of dirt on the indicator invisible. be.

[Disclosure of the Invention] (M) The present invention provides a grill having a filter block that cleans air taken in through an intake hole, a bell mouth with the grill attached to one side and having an intake hole on the other side, In an air purifier equipped with a bell mouth and a fixed bell mouth that sucks air into the wind tunnel casing from the suction hole and discharges purified air from the discharge port, the air purifier is equipped with An auxiliary suction hole for blowing air to the auxiliary suction air passage is provided in the grille, and an indicator for checking when to replace the filter block is removably attached to the inside of this auxiliary suction hole, and an auxiliary suction air passage 7 inside this indicator is attached. By providing the suction opening so as to be offset from the auxiliary suction hole in a direction perpendicular to the front-rear direction,
It is characterized in that the auxiliary suction hole on the outside of the indicator and the suction opening on the inside of the indicator are offset so that dirt on the indicator cannot be seen directly from the outside.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

Figure 6 shows a perspective view of the air purifier from the front;
The figure shows a perspective view as seen from the back, and FIG. 8 shows a cross-sectional view. The air purifier of the present invention is roughly divided into a grill 1 which inhales air and cleans it with a filter block FB, a bell mouth 2 which inhales and guides the purified air from the grill 1, and a bell mouth 2 which inhales and guides the purified air from the bell mouth 2. It consists of a housing 3 that discharges air using a motor, fan, etc.

Starting from the grill 1 placed on the front of the air purifier, the grill 1 has the following configuration. tIIi
6 to 111, as shown in FIGS. 8 and 9, a lattice portion 1a with a horizontal striped lattice is formed on the front surface of the grille 1, and at the same time, the grille 1 has a lattice portion 1a provided with a horizontal striped lattice. A suction hole 1b for inhaling is formed. A filter block FB is housed on the back side of the grill 1, as shown in FIG. That is, the inside of the entire circumferential pipe 8 integrally provided rearwardly on the back surface of the grill 1 is used as a filter storage part 8a in which the filter block FB is stored.

In this filter storage part 8a, a blur filter 4, a dust removal filter 5 configured in a bellows-like shape, and a deodorizing filter 6.7 are stored from the front side. This filter block FB has a narrow strip-shaped filter holder 9, and the first
As shown in Figure 1, the deodorizing filter 7 is held down from the back and fixed to the grill 1. As shown in FIG. 10, a horizontal striped lattice is formed only on the back side of the grill 1 within the circumferential tube 8 where the filter strip FB is placed, and only the portion within the circumferential tube 8 is provided with a ventilator that inhales air. A pore 1b is provided. The front side of the other parts also has a lattice formation, but it is not a through lattice. A notch 10, which is open at the rear, is formed in the holes on both sides of the circumferential rib 8 of the grille 1, and serves as a filter block FB takeout part. *In addition, a square hole 12 for storing the indicator 11 shown in FIG. 9 and IIIJ10 is bored at the end of the upper surface of the grill 1, and the indicator 11 is inserted into the box-shaped storage part 13 through this square hole 12. It is stored and arranged.

Next, the Mercedes Benz car 1 or storage section 13, which is the gist of the present invention, will be explained. As shown in Figures 1 and 2, the front side of the storage section 13 at the top of the grill 1 is formed with a grid section 1a, similar to the front surface of the grill 1, and in addition to the ventilation holes 1b on both sides of the grid section 1a. A plurality of auxiliary suction holes 81 for sucking air are bored vertically. The other parts are left as a shield 82 that does not penetrate. [As shown in FIGS. 4 and 5, the indicator 11 stored in the storage part 13 has an approximately triangular upper portion and a square frame-shaped lower portion. A recess 83 is formed on the front surface of the upper part of the indicator 11, and the indicator 11 can be attached to and removed from the storage portion 13 by inserting a finger or the like into the recess 83. A portion of the indicator 11 whose front side is obstructed by the wall 84 is a filter housing portion 11a, and an indicator filter 85 is housed within this filter housing portion 11a. Further, a hole 84a is bored approximately in the center of the wall body 84. As shown in FIG. 4, indicator stickers 86 are pasted on the front of the wall 84, with color 1 for rooms where people smoke a lot on the left and color 1 for rooms where they rarely smoke on the right. When the indicator filter 85 visible through the central hole 84a changes to these colors, the indicator filter 5 also indicates that it is time to replace it.

Projections 87 are integrally formed on both sides of the indicator 110, and as shown in FIG.
At the same time, the air entering from the auxiliary suction hole 81 is passed through the suction opening 9 formed in the back plate 89 of the storage section 13.
It will only flow from 0. 9 on the back plate 89 of storage g13
This suction opening 90 provided is shown in FIG.
As shown in FIG. 2(a) showing a sectional view and FIG. 2(b) showing a B-Blli side view of FIG. It is formed at a position offset in the direction. That is, when viewed through the auxiliary suction hole 81, the indicator filter 85 and the suction opening 90 cannot be seen because they are offset.

Auxiliary suction hole 81 of grill 1, inside storage section 13 and grill 1
and the bell mouth 2.
is formed as shown in FIG. 8, and this auxiliary suction air passage 9
The discharge side of No. 1 communicates with a wind tunnel casing 50, which will be described later, and is blown out to the outside through a discharge port 41. Thus, the air sucked through the auxiliary suction hole 81 of the grill 1 flows through the hole 84a of the indicator 11, the indicator filter 85, and the suction opening 90 of the storage section 13. In this way, by arranging the indicator filter 85 in a parallel circuit to the rAMy filter 5 and the separate auxiliary suction air passage 91 in the grill 1, the reduction by 1! By setting the pressure drop of the indicator filter 85 and the size of the suction opening 90 so that the pressure drop is approximately the same as the pressure drop of the filter 5, the pressure drop of the dust removal filter 5 and the pressure drop of the part of the filter of the indicator 11 can be reduced. Can be made the same. Therefore, whenever the air purifier is in use, the indicator 11 can be easily removed and the indicator filter 85 can be seen through the hole 84a of the indicator 11.
By comparing the degree of dirt on the filter with the color of the indicator seal 86, it is possible to notify when it is time to replace the dust removal filter 5. Incidentally, the user needs to take out the indicator 11 from the main body from time to time to check how dirty the indicator filter 85 is. Further, by simply changing the opening area of the suction opening 90 of the storage section 13 of the grill 1, it is possible to adapt to various pressure-loss products of the dust removal filter 5.

As shown in FIG. 10, on both upper and lower sides of the full-circumference lip 8 of the grill 1, there are L-shaped mounting portions 14 that protrude from the rear and face each other. L-shaped mounting portions 15 protruding downward are respectively formed. At the top of both sides of the grill 1, there are 7 claws 16 and leaf springs 17.
It is fixed with a tapping screw 18 via. That is, as shown in FIG. 3, the hook 16 is disposed in a storage section 21 provided on the back side of the grill 1 so as to be movable in the horizontal direction, and the hook 16 is inserted into the storage section 21 in the horizontal direction through an elongated insertion hole 16m. A tapping screw 18 is hinged to the grill 1 via a washer 19. Further, a retaining piece 16c is integrally formed inside the hook 16, and the retaining piece 16c is inserted into a retaining hole (not shown) formed in the bell mouth 2 and engaged. I have to. That is, in order to fix the grill 1 to the bell mouth 2, as shown in FIG. When the grill 1 is inserted into the opening 25 from above, and the grill 1 is fitted into the opening surface of the bell mouth 2 by pushing both hooks 16 inward, and the hook 16 is released, the hook 16 returns to its original position due to the restoring force of the leaf spring 17.
The retaining piece 16c of the seven hooks 16 engages with the retaining hole of the bell mouth 2, and the grill 1 is fixed to the bell mouth 2.

Next, the bell mouth 2 will be explained. Figure 8 and 1
As shown in FIG. 2, the top surface of the bell mouth 2 is a sloped surface 26 that slopes toward the front side, and the top surface of the indicator 11 is also formed to be the same sloped surface in accordance with this sloped surface 26. A switch operating section 27 is provided on the inclined surface 26 of the bell mouth 2.
The switch operating section 27 has a so-called tact switch configuration, and allows turning on/off the air volume and switching the timer with just a light touch. Switch operation section 27
The printed board stand 28 constituting the is fixed to the boss part of the housing 3 with screws at three points, and the printed board 29 is attached to the molded spring hook and round boss 30.
It is fixed with.

A tactile switch 31, a light emitting diode, and other electronic components are mounted on the printed board 29.

The printed board stand 28 is held down by a part of the bell mouth 2, and the switch operation part 27 is composed of a molded spring 33 integrally molded from the bell mouth 2. The switch 31 is pressed down from above to turn it on and off. A switch name plate 34 is attached to the upper surface of the molded spring 33 of the bell mouth 2 using a sheet of polyester film.

As shown in FIG. 12, on the lower surface of the bell mouth 2, two four engagement points 25 are formed into which the engagement pieces 24 of the grille 1 are inserted. As shown in FIG. 8, a suction port 35 is formed approximately in the center of the bell mouth 2, facing the fan of the housing 3, which will be described later.
6 is formed integrally with the bell mouth 2. *In addition, this grid 36 is integrally formed with a plurality of circular grids 37 whose height is lower than that of the grid 36.This grid 37 prevents fingers from entering.Radial grid 3G The deodorizing filter 7 is in contact with the circular lattice 37, so that a gap is created. A rib 39 is integrally formed around the entire circumference of the grill storage section 38.The height of this rib 39 is the same as the height of the grid 36, and the rib 39 allows the inside of the grill storage section 38 to be Press the entire back side of the filter block FB of grill 1 to be stored, and then
The airtightness between the filter block FB and the bell mouth 2 is ensured. Further, a rib 40 is formed integrally with the rib 39 at the same height as the rib 39 and in the same direction as the radial lattice 36. In such a configuration, since the ribs 39 are provided around the entire circumference of the grill storage section 38, the airflow is directed from the ventilation holes of the grid section 1a of the grill 1 to the blur filter 4, Through the dust removal filter 5 and the deodorizing filter 6.7, from the suction port 35 of the bell mouth 2, with a centrifugal force of 7 T), through the air passage of the housing 3,
Wind is finally blown out from the discharge port 41.

A) Ussing 3 in which a bell mouth 2 is attached to a dog will be explained. tJIJ8 and FIG. 13, first, a discharge port 41 is provided in the upper part of the housing 3. Inside the housing 3, the motor 42 is mounted on a motor fixing plate 45 on the back side of the housing 3 in such a way that the back plate 3a of the housing 3 is sandwiched by a fixed part of the motor bracket at 3m using a vibration isolating rubber 43 and a sleeve 44. screw 46
It is fixed by 77 located within housing 3
The pin 47 is hingedly fixed to the rotor 42a of the motor 42. Further, from the housing 3, the circumference I of the molded product that constitutes the wind tunnel casing 50! 1151 is formed to have an Archimedean spiral shape, and the bell mouth 2, the printed board stand 28, and this peripheral wall 51 constitute the wind tunnel casing 50. The above-mentioned discharge port 41 is formed in a part of this wind tunnel casing 50.

By the way, when switching between "strong" and "weak" operation of the air purifier, a partial voltage resistor is connected in series to the motor 42 for "weak" operation. Since the voltage dividing resistor generates heat, the voltage dividing resistor is fixed to a fixed plate that also serves as a heat sink. The voltage dividing resistance block 52 consisting of this voltage dividing resistance 53 and the like is installed in the wind tunnel casing 5 closest to the lead wire 58 of the motor 42 attached to the housing 3.
0 lap I! ! ! A part of 51 is cut out and placed here. That is, as shown in FIG.
7T on the side of the air passage from the bending part 50a of the wind tunnel casing 50
The voltage dividing resistance block 52 is disposed in the wind tunnel casing 50 facing the wind tunnel 47 with the fixing plate 54 of the voltage dividing resistance block 52 facing the air passage side. Between the lead wire 58 of the motor 42 and the wind tunnel casing 50, there is a
In order to facilitate wiring of the lead wire 58 of the motor 42,
As shown in FIG. 13, the groove 6 has ribs 59 on both sides.
0 is set.

A motor fixing plate 45 for fixing the motor 42 is disposed flush with the back surface of the back plate 3a of the housing 3. That is, as shown in FIGS. 7 and 1 and 8, the housing 3
The center part of the back plate 3a has a rectangular recess 64 recessed toward the front side.
Further, a recessed step 65 is formed around this recess 64, and within this recessed step 65, the motor fixing plate 45 is held flush with the back surface of the back plate 3a by the screws 46. will be placed. As shown in FIG. 7, the motor fixing plate 45 is formed into a rectangular plate shape, with a notch 45b opening in the center, and a holding piece 45a integrally formed so as to protrude into the notch 45b. It is.

Furthermore, three screw holes into which screws 46 for fixing the motor 42 are screwed are formed around the notch 45b. This holding piece 45a is positioned corresponding to the recess WS64 of the housing 3.

The holding piece 45a formed on the motor fixing plate 45 is used for hanging and fixing the air purifier to a wall surface, and is approximately U-shaped when the air purifier is attached to a wall surface etc. with the air purifier upside down. At the same time as fixing the mold, the motor fixing plate 45 is inserted and locked. At this time, a drawstring 72 is used for operation, and the drawstring 72 is normally attached by press-fitting its knob 73 into a recess 74 formed on the back of the housing 3, as shown in FIG. are doing. This is because the knob part 73 of the drawstring 72 is housed on the back surface of the housing 3 so that the knob part 73 of the drawstring 72 does not hang out and get in the way when the air purifier is used in a stationary position. In addition, the knob part 73 is 1! ! When stored in the first part 74, it is made so that it does not protrude from the back surface of the housing 3. Further, the tip of the drawstring 72 is connected to the arm 70 that drives the switch operation 1!1s27.

[Effect of the Invention 1] As described above, the present invention includes a grill having a filter block that cleans air taken in through the suction hole, and a bell mouth with the grill attached to one side and having the suction hole on the other side. In an air purifier equipped with a bell mouth and a fixed housing that sucks air into the wind tunnel casing from an inlet and discharges purified air from an outlet, an air purifier is provided that is separate from the inlet to the filter block of the grille. An auxiliary suction hole is provided in the grille to send air to the auxiliary suction air passage, and an indicator for checking when to replace the filter block is removably attached to the inside of this auxiliary suction hole, and air is drawn into the auxiliary suction air passage inside this indicator. Since the opening is provided offset from the auxiliary suction hole in a direction perpendicular to the longitudinal direction, the auxiliary suction hole on the outside of the indicator and the suction opening on the inside of the indicator are Because it is offset, dirt on the indicator cannot be directly seen from the outside through the auxiliary suction hole, which improves the appearance and does not cause discomfort like in the past. .

[Brief explanation of the drawing]

Figure 1 is a front view of main parts of the embodiment of the present invention, Figure #S2 (a)
2(b) is a sectional view taken along line BB in FIG. 1, and FIG. 3 is a rear view of essential parts of FIG.
Figure 4 is a perspective view of the above indicator, Figure 5 is an exploded perspective view of the same indicator, tpJ6 is a perspective view of the above air purifier, and Figure 7 is the air purifier seen from the back side of the above. FIG. 8 is a sectional view of the same as the above, FIG. 9 is an exploded perspective view of the same as the above, FIG. 10 is an exploded perspective view of the same as the above, FIG. 11 is a perspective view of the same as the above, and FIG. FIG. 13 is a front view of the same housing as above. 1 is a grill, 1b is a suction hole, 2 is a bell mouth, 3 is a housing, 11 is an indicator, 35 is a suction hole, 81 is an auxiliary suction hole, 90 is an auxiliary suction opening, and 91 is an auxiliary suction air passage. Agent Patent Attorney Ishi 1) Chief Seven: - Ku〇Figure 3 Figure 5 Figure 4 Figure 6 " Figure 7 Figure 8

Claims (1)

[Claims] (1) A grill having a filter block that purifies the air taken in through the suction hole, a bell mouth that is attached to one side of the grill and has a suction hole on the other side, and a bell mouth that is fixed to the bell mouth and draws air from the suction hole. In an air purifier equipped with a housing that sucks clean air into a wind tunnel casing and discharges purified air from an outlet, an auxiliary air blower is provided to the grille to blow air into the auxiliary suction air passage in addition to the suction hole to the filter block of the grille. A suction hole is provided, an indicator for checking when to replace the filter block is removably attached to the inside of this auxiliary suction hole, and a suction opening is provided in the auxiliary suction air passage inside this indicator. An air purifier characterized by being provided offset in a direction orthogonal to the front-rear direction.