JP2016070539A - Air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air cleaner which includes a detection mechanism capable of performing a detection operation with high reliability with a structure of low cost.SOLUTION: An air cleaner, in a body, includes: the body which can accommodate a cleaning filter unit such as a dust collection filter for collecting dust in a housing and a deodorization filter; an air suction port which is formed on an upstream of the cleaning filter unit; a centrifugal fan and a motor-driven blower which take in air from the air suction port and which allow the air to pass the filter unit. In the housing, a cleaning filter unit mounting part is formed for mounting the cleaning filter unit. A detection mechanism is mounted on an upper surface of the cleaning filter unit mounting part, and the detection mechanism is configured by a detection sensor and a detection lever. The detection sensor is mounted in the body, and the detection lever is projected so as to be located in the cleaning filter unit mounting part. Detection means is provided which can detect presence/absence of the dust collection filter by inserting the dust collection filter in the cleaning filter unit mounting part.SELECTED DRAWING: Figure 9

Description

  The present invention relates to an air cleaner.

  In the conventional air cleaner, the following structure is used in order to improve safety. Patent Document 1 discloses a structure that operates an electric dust collector only when a filter housing member is fitted into a suction port.

Japanese Patent Application Laid-Open No. 3-204466

  The air cleaner basically has the function of collecting dirty dust and dust in the room, and as a structure it collects large dust at the front (outside) of the dust collection filter. In general, a pre-filter for providing the pre-filter is provided and the pre-filter is bent and taken out as an inexpensive structure.

  When the detection device is arranged on the back side (centrifugal fan direction) of the dust collection filter with respect to the position where the dust collection filter is attached to the air cleaner body (housing) as in Patent Document 1, the prefilter changes with time. If it is deformed by repeated attachment and detachment, the position of the detection object such as the dust collecting filter is displaced, and there is a possibility that the detection device cannot be detected due to insufficient stroke or the like.

  It is an object of the present invention to provide an air cleaner having a detection mechanism that can perform a highly reliable detection operation with an inexpensive structure.

  In order to solve the above problems, the present invention provides a main body that can store a purification filter unit such as a dust collection filter or a deodorization filter for collecting dust in a housing, and air formed upstream of the purification filter unit. A purification device in which a suction port, a centrifugal fan for taking air from the air suction port and allowing the air to pass through the purification filter unit and an electric blower are provided in the main body, and the purification filter unit is mounted in the housing. A filter unit mounting portion is formed, and the detection mechanism is attached to the upper surface of the purification filter unit mounting portion. The detection mechanism includes a detection sensor and a detection lever, and the detection sensor is the main body. And the detection lever protrudes so as to be positioned in the purification filter unit mounting portion, and the purification filter By inserting the dust filter to filter unit mounting portion, characterized in that a detection means capable of detecting the presence or absence of dust filter.

  In order to solve the above problems, the present invention provides a housing, a purification filter unit mounting portion formed in the housing, a purification filter unit attachable to and detachable from the purification filter unit mounting portion, and the housing And a detection mechanism for detecting whether or not the purification filter unit is attached to the purification filter unit mounting portion, and the detection mechanism includes the purification filter. The detection mechanism is configured by a detection sensor and a detection lever, and one end of the detection lever is located in the purification filter unit mounting portion, and the detection And one end of the detection lever is connected to the detection sensor. The state in between is the state in which the purification filter unit is attached to the purification filter unit mounting part, and the state in which one end of the detection lever is located in the purification filter unit mounting part is The purification filter unit mounting portion is not attached.

  ADVANTAGE OF THE INVENTION According to this invention, the air cleaner provided with the detection mechanism which can perform a highly reliable detection operation with an inexpensive structure can be provided.

It is an appearance perspective view of an air cleaner concerning an embodiment of the present invention. It is a disassembled perspective view of the air cleaner which concerns on embodiment of this invention. It is composition explanatory drawing which shows typically the composition of the water supply mechanism at the time of seeing the internal structure of the air cleaner concerning the embodiment of the present invention from the back, and a humidification filter. It is composition explanatory drawing which shows typically the composition of the water supply mechanism and humidification filter at the time of seeing the internal structure of the air cleaner concerning the embodiment of the present invention from the left side. It is a center sectional view of an air cleaner concerning an embodiment of the present invention. It is an expansion perspective view showing arrangement of a purification filter unit seen from the back of an air cleaner concerning an embodiment of the present invention. It is a perspective view of the detection mechanism vicinity of the state which attached the dust collection filter of the air cleaner which concerns on embodiment of this invention. It is a perspective view of the detection mechanism vicinity of the state which removed the dust collection filter of the air cleaner which concerns on embodiment of this invention. It is sectional drawing of the detection mechanism of the state which attached the dust collection filter of the air cleaner which concerns on embodiment of this invention. It is sectional drawing of the detection mechanism of the state which removed the dust collection filter of the air cleaner which concerns on embodiment of this invention. It is a partial expansion perspective view of the ventilation mechanism (large motor incorporation) of the air cleaner concerning the embodiment of the present invention. It is a partial expansion perspective view of the ventilation mechanism (small motor incorporation) of the air cleaner concerning the embodiment of the present invention. (A) It is an expansion | deployment perspective view when a big motor of the air cleaner which concerns on embodiment of this invention is integrated. (B) It is a front view when the big motor of the air cleaner which concerns on embodiment of this invention is integrated. (A) It is an expansion | deployment perspective view when a small motor of the air cleaner which concerns on embodiment of this invention is integrated. (B) It is a front view when the small motor of the air cleaner which concerns on embodiment of this invention is integrated. (A) It is a perspective view at the time of lock release of the air cleaner concerning the embodiment of the present invention. (B) It is a perspective view at the time of the lock | rock of the air cleaner which concerns on embodiment of this invention. (A) It is sectional drawing at the time of lock release of the air cleaner which concerns on embodiment of this invention. (B) It is sectional drawing at the time of the lock | rock of the air cleaner which concerns on embodiment of this invention. (A) It is the elements on larger scale at the time of lock release of the air cleaner which concerns on embodiment of this invention. (B) It is the elements on larger scale at the time of the lock | rock of the air cleaner which concerns on embodiment of this invention. It is a disassembled perspective view of the front panel which concerns on embodiment of this invention. It is a disassembled perspective view of the display unit which concerns on embodiment of this invention. It is sectional drawing of the front panel which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.

  FIG. 1 is an external perspective view of an air cleaner 1 according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the air cleaner 1. In addition, in FIG. 1, the humidification filter 3 arrange | positioned in the housing 4 and the water supply mechanism 2 are drawn with the broken line (hidden line).

  As will be described in detail later, the air cleaner 1 according to the present embodiment includes a water supply mechanism 2 that supplies water to an upper portion in the vertical direction of the humidifying filter 3. In the following description, the front / rear / left / right / up / down directions are based on the front / rear / left / right / up / down directions of the air purifier 1 shown in FIG. 1, and the upper side in the vertical direction coincides with the upward arrow shown in FIG. .

First, after explaining the whole structure of the air cleaner 1, the water supply mechanism 2 and the humidification filter 3 are demonstrated.
<Overall configuration of the air purifier>
As shown in FIGS. 1 and 2, the air cleaner 1 according to this embodiment includes a front panel 4a, a pair of side panels 4b and 4b (only the left side panel 4b is shown in FIG. 1), and an upper. A housing 4 is formed including a case 4c and a rear panel 4d.

  The housing 4 is assembled via a tank base 6 in which the water tank 20 is retractably accommodated, and a rear case 4e (see FIG. 2) attached thereto.

  The left side panel 4b is provided with an opening / closing lid 4f for removing the humidifying filter 3 from the housing 4. Moreover, in FIG.1 and FIG.2, the code | symbol 7 is a flap mentioned later which can adjust an opening-and-closing angle. Incidentally, the flap 7 is configured to rotate and open so that the front edge side is lifted around the rear edge side as an axis.

  As shown in FIG. 2, in the housing 4 of the air cleaner 1, the purification filter unit 8, the humidification filter 3, and the air blowing mechanism 10 are arranged in this order from the rear panel 4d side to the front panel 4a side. Is arranged.

  As will be described in detail later, the purification filter unit 8 is mainly composed of a pre-filter 8a, a dust collection filter 8b, and a deodorizing filter 8c, and the blower mechanism 10 includes a centrifugal fan 11, a scroll 12, and a motor. 13 mainly.

  Incidentally, the centrifugal fan 11 of the blower mechanism 10 to be described later rotates into the housing 4 so that air outside the housing 4 flows from the openings 4g and 4g on both side edges of the rear panel 4d. And this air flow distribute | circulates the purification | cleaning filter unit 8 and the humidification filter 3 in this order. Thereafter, the air is sent out of the housing 4 of the air purifier 1 through the filter 14 and the flap 7 from the upper opening of the scroll 12 in which the centrifugal fan 11 is housed.

  Reference numeral 16 denotes a plate. The plate 16 is plate-shaped and is arranged so as to face the scroll 12 with the centrifugal fan 11 therebetween, and the scroll partitions the openings 4g, 4g (air suction port) and the upper opening 12b (air outlet) of the scroll 12. It plays the role of 12 lids. A bell mouth 27 is fixed to the plate 16 with screws. The bell mouth 27 is a flow-shaped member that is provided with an opening and allows the sucked air to flow radially inward of the centrifugal fan. The bell mouth 27 has a shape in which a finger or the like does not enter the centrifugal fan 11 by providing a radial or annular rib in the opening. As a conventional technique, the plate is provided with an opening, and a bell mouth that has a flow shape to flow the sucked air inward in the radial direction of the centrifugal fan is configured in an integrated shape, reducing the number of parts. Have. However, in order to improve the performance of the air purifier, it is necessary to increase the fan diameter if the design is such that noise is reduced while increasing the air volume. In that case, if the mold is manufactured by integrating the plate and the bell mouth, the optimally designed shape may be changed, and it may be necessary to recreate the shape in accordance with the fan performance. In addition, the air cleaner has a relatively large shape and size, and it is expensive to remake the mold. In addition, when they are integrally formed, a larger mold has a longer time when changing the shape of the mold, and there is a risk of spending a considerable amount of time and time until it is changed several times and optimized. However, in the embodiment of the present invention, the plate 16 and the bell mouth 27 are separated from each other in consideration of the case where it is necessary to change the aerodynamic characteristics in which the specification of the motor 13 is different or the shape of the centrifugal fan 11 is different. Only the mouse 27 can be changed. As a result, it is designed to cope with the change of the bell mouth 27 when the above necessity arises. It is possible to have performance with different specifications at low cost without producing a large mold. 28 is a tank house.

  The bell mouth 27 and the plate 16 are fixed by screws or fitting, and further by welding connection or the like.

  The purification filter unit 8 includes a pre-filter 8a, a dust collection filter 8b, and a deodorizing filter 8c arranged in this order from the rear panel 4d side to the front panel 4a side.

  The prefilter 8a collects relatively large dust such as cotton dust. The dust collection filter 8b collects relatively small particles such as dust, dust and pollen. The deodorizing filter 8c adsorbs a chemical substance that causes odor.

  The humidification filter 3 increases the humidity of the air flowing through it. The humidifying filter 3 will be described in detail later.

  The blower mechanism 10 includes a centrifugal fan 11 disposed in the scroll 12 and a motor 13 that rotates the centrifugal fan 11.

As described above, the air blowing mechanism 10 causes the air introduced from the openings 4g and 4g of the rear panel 4d to flow through the purification filter unit 8 and the humidifying filter 3 by the rotation of the centrifugal fan 11 and then through the flap 7. To feed out of the housing 4.
<Water supply mechanism>
Next, the water supply mechanism 2 of the air cleaner 1 will be described.

  As shown in FIG. 2, the water supply mechanism 2 includes a water tank 20 accommodated in the tank base 6, a pump 21 that pumps water stored in the water tank 20, and a water supply pipe 22 described later disposed in the humidifying filter 3. (See FIGS. 3 and 4), a connecting pipe 23 that connects the pump 21 and the water supply pipe 22, and a pumping pipe 24 that is detained in the water tank 20 and connected to the pump 21 (see FIGS. 3 and 4). ) And.

  As shown in FIG. 2, the tank base 6 is formed in a substantially rectangular parallelepiped box, and the water tank 20 can be taken in and out from the side opening. A receiving tray 6 a on which the humidifying filter 3 is placed is provided on the upper surface of the tank base 6, and a communication hole 6 b communicating with the inside of the tank base 6 is formed in the receiving tray 6 a.

  As shown in FIG. 2, the water tank 20 is formed of a substantially rectangular parallelepiped box, in which water supplied to the humidifying filter 3 is stored.

  Reference numeral 20 a is a communication hole formed on the upper surface of the water tank 20, and the communication hole 20 a allows the inside and outside of the water tank 20 to communicate with each other.

  Reference numeral 33 denotes a power button. Reference numeral 26 denotes a filter case.

  FIG. 3 is a configuration explanatory diagram schematically showing the configuration of the water supply mechanism 2 and the humidifying filter 3 when the internal structure of the air purifier 1 according to the embodiment of the present invention is viewed from the back. FIG. 4 is a configuration explanatory diagram schematically showing the configuration of the water supply mechanism 2 and the humidifying filter 3 when the internal structure of the air purifier 1 according to the embodiment of the present invention is viewed from the left side.

  3 and 4, reference numeral 4 is a housing, and reference numeral 6 is a tank base. Reference numeral 8 in FIG. 4 is a purification filter unit, reference numeral 2 is a water supply mechanism, reference numeral 11 is a centrifugal fan, reference numeral 12 is a scroll, reference numeral 13 is a motor, and reference numeral 4g is The opening of the housing 4 (rear panel 4d in FIG. 2). 3 and 4, the housing 4, the opening 4 g, the tank base 6, the centrifugal fan 11, the scroll 12, and the motor 13 are drawn with virtual lines (two-dot chain lines).

  As shown in FIG. 3, an adapter tube 21 a is provided in the suction portion (not shown) of the pump 21. The adapter pipe 21a is detachably connected to a pumping pipe 24 placed in the water tank 20.

  The pumping pipe 24 has a plurality of suction holes 24 a formed at positions where it is submerged in the water tank 20. In addition, the pumping pipe 24 is bent in an L shape toward the adapter pipe 21a in the middle of extending upward of the water tank 20, and the tip of the pumping pipe 24 is fitted to the adapter pipe 21a.

  Incidentally, as shown in FIG. 2, when the water tank 20 is pulled out from the tank base 6, the fitting between the pumping pipe 24 (see FIG. 3) and the adapter pipe 21a (see FIG. 3) is released. When the water tank 20 is stored in the tank base 6, the pumping pipe 24 and the adapter pipe 21a are fitted again.

  As shown in FIG. 3, a connecting pipe 23 is connected to a discharge portion (not shown) of the pump 21. The connecting pipe 23 extends from the pump 21 side along the right edge of the humidifying filter 3 toward the upper side in the vertical direction, and is bent toward the upper edge of the humidifying filter 3 so as to be connected to the water supply pipe 22. 23a.

  The connecting portion 23a is detachably fitted to one end side of a water supply pipe 22 which will be described later.

  Incidentally, when the opening / closing lid 4f shown in FIG. 1 is opened and the humidifying filter 3 is taken out from the housing 4, the fitting between the water supply pipe 22 (see FIG. 3) and the connecting portion 23a (see FIG. 3) is released. . Moreover, when the humidification filter 3 is arrange | positioned in the original position in the housing 4, the water supply pipe 22 and the connection part 23a are fitted again.

  As shown in FIG. 3, the water supply pipe 22 is disposed so as to extend along the vertical edge of the humidifying filter 3.

  In addition, the water supply pipe 22 is inclined downwardly from one end side fitted to the connecting portion 23a toward the other end side (in this embodiment, from the right side to the left side of the air purifier 1). In the present embodiment, an opening (not shown) formed on one end side of the water supply pipe 22 corresponds to a “water supply portion” in the claims.

Such a water supply pipe 22 has a plurality of water supply holes 22a along the extending direction thereof.
<Humidification filter>
The humidification filter 3 in this embodiment is a plate-shaped body.

  As shown in FIG. 4, the humidification filter 3 is erected in the vertical direction between the purification filter unit 8 and the blower mechanism 10. The water supply pipe 22 is disposed on the air upstream side of the upper edge of the humidifying filter 3 in the vertical direction.

  In addition, the white arrow in FIG. 4 represents the flow of air.

  The humidification filter 3 in this embodiment has flexibility. And as shown in FIG.3 and FIG.4, the circumference | surroundings of the humidification filter 3 are supported by the frame 3a.

  As shown in FIG. 4, the humidifying filter 3 extends so as to reach the side surface portion of the water supply pipe 22 on the air downstream side while extending from the vertical lower edge side toward the vertical lower portion of the water supply pipe 22. In other words, the humidification filter 3 extends toward the water supply pipe 22 from the lower edge side in the vertical direction, and is bent toward the air downstream side of the water supply pipe 22 immediately before contacting the water supply pipe 22.

  Further, as shown in FIGS. 3 and 4, a water receiving tray 3 b is provided below the frame body 3 a that supports the humidifying filter 3.

  Incidentally, when the humidifying filter 3 is removed from the housing 4 by opening the opening / closing lid 4f shown in FIG. 1, the humidifying filter 3 (see FIGS. 3 and 4), the frame 3a (see FIGS. 3 and 4), and water The receiving tray 3b (see FIGS. 3 and 4) is integrally removed from the housing 4.

  As shown in FIGS. 3 and 4, the water receiving tray 3b is formed with a drain hole 3c, and the drain hole 3c is opened on the tray 6a side of the tank base 6 shown in FIG.

  The drain hole 3c is provided with an opening / closing valve V. When the humidifying filter 3 is disposed at a predetermined position in the housing 4, the opening / closing valve V is urged upward. The drain hole 3c is opened. And when taking out the humidification filter 3 from the inside of the housing 4, the on-off valve V becomes a structure which closes the drain hole 3c.

  Therefore, when the humidifying filter 3 is taken out from the housing 4, the drain hole 3c is closed, and water dripping from the humidifying filter 3 is received by the water receiving tray 3b. Thereby, it is prevented that the indoor floor surface etc. get wet with the water dripping from the humidification filter 3.

  Next, an effect is demonstrated, demonstrating operation | movement of the air cleaner 1 which concerns on this embodiment.

  As shown in FIG. 3, when the pump 21 is activated, the water in the water tank 20 flows from the water supply hole 22 a of the water supply pipe 22 through the pumping pipe 24 having the suction hole 24 a, the connection pipe 23, and the water supply pipe 22. It is supplied to the humidifying filter 3. At this time, it is desirable that the output of the pump 21 is set so that water drops from the water supply hole 22a.

  As shown in FIG. 4, the water supplied from the water supply pipe 22 to the upper part in the vertical direction of the humidifying filter 3 flows down from the upper part in the vertical direction of the humidifying filter 3 to the lower part in the vertical direction.

  According to this air cleaner 1, the wetness rate of the water in the humidification filter 3 improves further compared with the conventional air cleaner (for example, refer patent document 1) in which the humidification filter 3 sucks up water by capillary action.

  The water dripped from the humidifying filter 3 to the water receiving tray 3b is returned from the drain hole 3c into the water tank 20 through the communication hole 6b of the tray 6a and the communication hole 20a of the water tank 20 shown in FIG. It is. That is, the water in the water tank 20 is recirculated by the pump 21.

  Further, as shown in FIG. 4, the centrifugal fan 11 of the blower mechanism 10 is rotated by the motor 13, so that air flows from the opening 4 g of the rear panel 4 d (see FIG. 2) as indicated by a white arrow. The air is purified by flowing through the purification filter unit 8 and humidified by flowing through the humidification filter 3. Thereafter, the air is sent out of the housing 4 from the top of the scroll 12 via the flap 7 (see FIG. 2).

  And in the air cleaner 1 which concerns on this embodiment, when air distribute | circulates the humidification filter 3 and is humidified, the water contained in the humidification filter 3 evaporates, but water is the humidification filter 3 by the water supply pipe 22. It flows down from the upper vertical direction to the lower vertical direction. As a result, the air cleaner 1 is prevented from adhering evaporation residue or the like to the humidifying filter 3. Therefore, according to this air cleaner 1, compared with the conventional air cleaner (for example, refer patent document 1), the moisture rate of the water in the humidification filter 3 improves further.

  Therefore, according to this air cleaner 1, the humidification performance outstanding compared with the past can be exhibited.

  Moreover, in the air cleaner 1 which concerns on this embodiment, as shown in FIG. 3, the water supply pipe | tube 22 is arrange | positioned so that it may extend along the vertical direction upper edge part of the humidification filter 3, and this water supply pipe | tube 22 has it. A plurality of water supply holes 22a are formed along the extending direction. Therefore, according to this air cleaner 1, the humidification filter 3 is wetted efficiently.

  Moreover, in the air cleaner 1 which concerns on this embodiment, the water supply pipe | tube 22 is arrange | positioned in the air upstream of the humidification filter 3, as shown in FIG. According to this air cleaner 1, compared to the case where the water supply pipe 22 is disposed on the air downstream side of the humidifying filter 3, the water dripped from the water supply pipe 22 is accompanied by the air, and water drops from the air cleaner 1. Is prevented from being discharged.

  Moreover, in the air cleaner 1 which concerns on this embodiment, the humidification filter 3 reaches the side part by the side of the air downstream of the water supply pipe 22 in the middle of extending from the lower edge part of the vertical direction toward the lower part of the vertical direction of the water supply pipe 22. It extends like so. According to the air cleaner 1, the water dripped from the water supply pipe 22 is more reliably received and absorbed by the humidifying filter 3.

  Moreover, in the air cleaner 1 which concerns on this embodiment, as shown in FIG. 3, the water supply pipe 22 inclines in the downward slope toward the other end side from the one end side connected with the connection pipe 23. As shown in FIG. According to this air cleaner 1, the water supplied from the connecting pipe 23 into the water supply pipe 22 is efficiently supplied to the humidifying filter 3 from the water supply hole 22 a without staying in the water supply pipe 22.

  FIG. 5 is a central cross-sectional view of the air cleaner according to the embodiment of the present invention. As shown in FIG. 5, the humidification filter 3 is arranged from the vertical lower edge side toward the vertical lower part of the water supply pipe 22 and is incorporated so as to be folded back on the water supply pipe 22 side (water supply mechanism side). ing. In other words, the humidifying filter 3 includes a humidifying filter plate portion 3b that is a plate-like portion facing from the vertical lower edge side to the lower portion in the vertical direction of the water supply pipe 22, a humidifying filter folding portion 3a that is shaped to be folded, Is built to exist. By having the above-mentioned shape and having a portion (humidification filter folding portion 3a) that folds the humidification filter 3, the flow of water dripped from the upper side of the humidification filter 3 is slowed, and the speed of falling down is suppressed. It is possible to provide an air purifier that can be used.

  Furthermore, when a non-woven fabric having a relatively low water absorption is arranged on the upper side of the humidifying filter 3 (on the upper side of the humidifying filter folding portion 3a), a further slower dropping speed can be obtained and it is possible to prevent the water from flowing down at once.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, It can implement with a various other form.

  In the embodiment, the air blowing mechanism 10 is arranged between the front panel 4a and the plate 16. However, the air blowing mechanism 10 is arranged between the rear panel 4d and the purification filter unit 8, and the air Can be introduced into the housing 4 from the front panel 4a side.

  Moreover, although the air cleaner provided with the humidification function was described in the said embodiment, it is good also as a structure used for what is called a dehumidification humidification air cleaner provided with the dehumidification function which dehumidifies air with high humidity at the time of a rainy season.

<Detection mechanism>
Next, a detection mechanism for controlling the operation of the air purifier 1 to stop when the purification filter unit 8 is removed from the housing 4, particularly when the dust collection filter 8 b is removed from the housing 4, is shown in FIG. 5. -10. FIG. 5 is a central cross-sectional view of the air cleaner according to the embodiment of the present invention. FIG. 6 is an exploded perspective view showing the arrangement of the purification filter unit as seen from the back surface of the air cleaner according to the embodiment of the present invention. FIG. 7 is a perspective view of the vicinity of the detection mechanism in a state where the dust collection filter of the air cleaner according to the embodiment of the present invention is attached. FIG. 8 is a perspective view of the vicinity of the detection mechanism with the dust collection filter of the air cleaner according to the embodiment of the present invention removed. FIG. 9 is a cross-sectional view of the detection mechanism in a state where the dust collection filter of the air cleaner according to the embodiment of the present invention is attached. FIG. 10 is a cross-sectional view of the detection mechanism in a state where the dust collection filter of the air cleaner according to the embodiment of the present invention is removed.

  The detection mechanism includes a detection lever 39 and a detection sensor 40.

  The detection lever 39 has a rotation shaft 39a, a shielding part 39b, and a contact part 39c. The rotation shaft 39a is a portion that can rotate the detection lever 39 with respect to the housing 4 (purification filter unit mounting portion 5). By attaching the rotation shaft 39a to the housing 4 sensor (purification filter unit mounting portion 5) which is a component of the air purifier 1, the detection lever 39 rotates relative to the housing 4 (purification filter unit mounting portion 5). It becomes possible to move. The shielding part 39b is a part capable of shielding infrared rays emitted and received by the detection sensor 40 described later. The contact part 39c is a part that can come into contact with the dust collection filter 8b.

  In the present embodiment, the detection sensor 40 includes an infrared light emitting unit 53 and an infrared light receiving unit 54. The detection sensor 40 enables the operation of the air cleaner 1 by shielding infrared rays from the infrared light emitting unit 53 to the infrared light receiving unit 54 (by preventing infrared rays from reaching the infrared light receiving unit 54 from the infrared light emitting unit 53). On the other hand, it has the same role as the ON / OFF switch that controls the air cleaner 1 to stop operation by not blocking the infrared rays (by causing the infrared rays to reach the infrared ray receiving portion 54 from the infrared ray emitting portion 53). It is what you are doing. As described above, the shielding portion 52 of the detection lever 39 is used to shield infrared rays. Here, since the detection sensor 40 uses infrared rays, particularly the shielding portion 52 of the detection lever 39 has a black component hue to shield the infrared rays. In the present embodiment, the detection sensor 40 uses infrared rays, but this is not a limitation. What is necessary is just to detect the presence or absence of attachment of the dust collection filter 8b.

  The operation of the detection mechanism when removing the dust collection filter 8b from the housing 4 will be described. When the dust collecting filter 8b is attached to the housing 4, the shielding part 39b is located between the infrared light emitting part 53 and the infrared light receiving part 54 to shield the infrared rays of the detection sensor 40, and the contact part 39c is the dust collecting filter 8b. Is in contact with. When the dust collection filter 8b is started to be removed from the housing 4 from this attached state, the rotation shaft 39a is rotated so that the position where the dust collection filter 8b and the contact portion 39c are in contact with each other. The position changes. In a state where the dust collection filter 8b is removed from the housing 4, the shielding part 39b is located below between the infrared light emitting part 53 and the infrared light receiving part 54 and does not shield the infrared rays of the detection sensor 40, and the contact part 39c is a dust collecting part. It will be in the state which does not contact with the filter 8b. In this removed state, infrared rays reach the infrared light receiving unit 54 from the infrared light emitting unit 53 of the detection sensor 40 and control is performed so that the operation of the air cleaner 1 is stopped. It is controlled not to perform the operation.

  When the dust collection filter 8b is started to be attached to the housing 4 (purification filter unit mounting portion 5) from the detached state, the dust collection filter 8b and the contact portion 39c come into contact with each other, and the rotation shaft 39a rotates, and the contact portion accordingly. The position of 39 changes. In a state where the dust collection filter 8b is attached to the main body, as described above, the shielding part 39b is located between the infrared light emitting part 53 and the infrared light receiving part 54 to shield the infrared rays of the detection sensor 40, and the contact part 39c is a collecting part. It will be in the state which contacted the dust filter 8b. In this attached state, the infrared ray from the infrared light emitting part 53 of the detection sensor 40 to the infrared light receiving part 54 is shielded by the shielding part 39b so that the air cleaner 1 can be operated when the operation part is operated. Let

  When changing from the attached state to the detached state, the shielding part 39b is rotated downward by its own weight, and is rotated from the state where the infrared light is emitted from the infrared light emitting part 53 and the infrared light receiving part 54 to the state where it is not shielded. .

  When changing from the detached state to the attached state, the shielding portion 39b is rotated upward, and is rotated from a state where the infrared ray is not shielded to a state where the infrared ray is shielded between the infrared light emitting portion 53 and the infrared light receiving portion 54. .

  Here, the state in which one end (contact portion 39c) of the detection lever 39 is located between the detection sensors 40 (between the infrared light emitting portion 53 and the infrared light receiving portion 54) is that the dust collection filter 8b in the purification filter unit 8 is in particular. The purification filter unit 8 is attached to the purification filter unit mounting portion 5 in a state where one end (contact portion 39c) of the detection lever 39 is located in the purification filter unit mounting portion 5. It is in the state where it is not attached to.

  The housing 4 of the air cleaner 1 is formed with a substantially rectangular purification filter unit mounting portion 5 for attaching the purification filter unit 8. Detection mechanisms such as the detection lever 39 and the detection sensor 40 are located on the upper surface of the purification filter unit mounting portion 5.

  The reason why the detection mechanism is located particularly on the upper outer surface of the purification filter unit mounting portion 5 is as follows.

  First, consider a case where the detection mechanism is located not on the top surface but on the back surface (the surface that is not visible from the front by the purification filter unit 8 when the purification filter unit 8 is attached to the main body). Here, the prefilter 8a located on the most surface side (the surface that can be seen from the table when the purification filter unit 8 is attached to the main body) of the purification filter unit 8 has an inexpensive structure. The type that is taken out from the housing 4 is generally used. There is a possibility that the filter unit pre-filter 8a is deformed with the passage of time, and the position of the dust collecting filter 8b is also displaced accordingly. When the detection mechanism is located on the back surface, in a displaced state, the stroke of the detection lever 39 with respect to the detection sensor 40 may be insufficient and detection may not be possible.

  Next, the thing which arrange | positions a detection mechanism in an air path directly is examined. When the detection mechanism is located in the air path, there is a possibility that dust may enter the detection mechanism during long-term use, or fine dust may be caught around the detection mechanism and accumulated. Dust enters the detection mechanism, and fine dust is caught around the detection mechanism and accumulates, so that the infrared ray is always blocked, and even if the purification filter unit 8 is removed from the main body, the function of stopping the operation may not work. is there.

  Consider a case in which the detection mechanism is structured to be attached to a frame-shaped part having a case shape in which the dust collecting filter 8b is mounted exclusively. In the above case, there is a possibility that the dimensional variation of the frame parts and the change with time of the frame parts may occur. If dimensional variations or changes with time occur, they may not be placed at positions that operate reliably due to integration tolerances, and may not be detected.

  Consider a case where the detection mechanism is located on the inner surface of the purification filter unit mounting portion 5, particularly on the lower inner surface. When the detection mechanism is located on the lower inner surface, fine dust adheres to the dust collection filter 8b after long-term use. When removing the dust collection filter 8b from the housing 4 (purification filter unit mounting portion 5), there is a possibility that dust spills downward and enters the detection mechanism. When the dust enters the detection mechanism, the infrared ray is always blocked, and even if the purification filter unit 8 is removed from the main body, the function of stopping the operation may not work.

  Consider the case where the detection mechanism is located below the purification filter unit mounting portion 5. Here, in an actual usage environment, the air cleaner 1 may be used in a room with high humidity. Further, when the temperature is suddenly lowered, the relative humidity increases, and the air purifier 1 is left in an environment where condensation easily occurs. It is sometimes done. If an electrical component such as a detection mechanism is disposed on the lower side, condensed moisture may fall down and enter the detection mechanism. In the case of an air purifier with a humidifying function, it is necessary to have little trouble in operation even if condensation or water should be applied in order to handle water.

  Since the detection mechanism is located on the outer surface of the purification filter unit mounting portion 5, particularly the upper outer surface, the various fears are reduced. Since the detection mechanism is located particularly on the upper outer surface of the purification filter unit mounting portion 5, a stroke that can be detected even if the dust collection filter 8b is slightly displaced due to a change over time or an impact is ensured. Furthermore, since the detection mechanism is located on the upper side, the shielding portion 39b returns to a prescribed position due to its own weight, and reliability is increased.

Reference numeral 35 denotes a wheel. Reference numeral 38 denotes a power cord. Reference numeral 45 is an air suction port.
<Motor mounting structure>
Next, a motor mounting structure for mounting the motor 13 to the scroll 12 will be described with reference to FIGS. FIG. 11 is a partially exploded perspective view of a blower mechanism (large motor built-in) of the air cleaner according to the embodiment of the present invention. FIG. 12 is a partially exploded perspective view of a blower mechanism (small motor built-in) of the air cleaner according to the embodiment of the present invention. Fig.13 (a) is an expansion | deployment perspective view when a big motor of the air cleaner which concerns on embodiment of this invention is integrated. FIG.13 (b) is a front view when the big motor of the air cleaner which concerns on embodiment of this invention is integrated. Fig.14 (a) is an expansion | deployment perspective view when a small motor of the air cleaner which concerns on embodiment of this invention is integrated. FIG.14 (b) is a front view when the small motor of the air cleaner which concerns on embodiment of this invention is integrated.

  FIG. 11 and FIG. 12 show the scroll 12 having a configuration that can handle the same parts even when the size of the motor 13 to be attached is different.

  The basic mounting method is as follows.

  A plurality of fixing screw bosses 55 formed integrally with the scroll 12 are provided on the side of the scroll 12 where the motor 13 is attached. The plurality of fixing screw bosses are formed in a range of substantially the same diameter as the motor 13 with respect to the center of the motor 13 with the motor 13 attached. The fixing screw boss 55 is formed to be attached at an arbitrary height according to the type (size) of the motor 13 to be attached, and is a fixing screw boss having a different length. The motor holder 29 is fixed to the fixing screw boss 55 with screws so as to sandwich the motor 13.

  In this embodiment, a case where two types of motors 13 having different sizes (a large motor 13a and a small motor 13b) are used will be described. In the present embodiment, the scroll 12 is provided with three fixing screw bosses 55a having a long length and three fixing screw bosses 55b having a short length as a plurality of fixing screw bosses 55 having different lengths. . The fixing screw bosses 55a having a long length and the fixing screw bosses 55b having a short length are provided alternately. When the fixing screw bosses are connected by a line, they are provided in a substantially triangular shape. The motor holder 29 has a substantially triangular shape, and a screw fixing hole is provided at each vertex.

  When incorporating a large motor 13a as shown in FIGS. 11 and 13, a long fixing screw boss 55a is used. First, a large motor 13 a is incorporated in the scroll 12. Next, for the purpose of both suppressing the large motor 13a and preventing rotation, the motor holder 29 is screwed and fixed to a long fixing screw boss 55a so as to sandwich the large motor 13a.

  When incorporating a small motor 13b as shown in FIGS. 12 and 14, a fixing screw boss 55b having a short length is used. First, a small motor 13 b is incorporated in the scroll 12. Next, for the purpose of both suppressing the small motor 13b and preventing the rotation, the motor holder 29 is screwed and fixed to a short fixing screw boss 55b so as to sandwich the small motor 13b.

  By providing the scroll 12 with the fixing screw bosses 55 having different lengths, the fixing screw bosses 55 that match the size of the motor 13 can be fixed.

  Even when the motors 13 having different sizes are incorporated, it is possible to configure the air cleaner 1 without increasing the number of parts.

Reference numeral 30 denotes a seismic device.
<Power board case mounting structure>
Next, a structure for attaching the power supply board case 31 to the housing 4 (a structure for attaching the power supply board) will be described with reference to FIGS.

  As described in FIGS. 11 to 14 and the like, the scroll 12 includes a storage portion 12a that stores the centrifugal fan 11, an upper opening portion 12b that constitutes the air outlet, and a passage portion that connects the storage portion 12a and the upper opening portion 12b. 12c. When viewed from the side, the storage portion 12a has a substantially circular shape, the upper opening portion 12b has a width substantially the same as the diameter of the storage portion 12a, and the passage portion 12c opens from the upper right of the storage portion 12a. The shape is such that the width increases toward the portion 12b. When the scroll 12 is attached to the housing 4, the portion from the upper left of the scroll 12 to the end of the upper opening 12b becomes a space.

In the present embodiment, in order to prevent the main body size (depth) of the air purifier 1 from becoming large, the periphery of the rotating portion of the centrifugal fan 11 of the scroll 12 configured in the blower mechanism 10 and the opening that configures the outlet. The power supply substrate case 31 is disposed between the two (in the portion from the upper left of the scroll 12 to the end of the upper opening 12b). As a result, the power supply board case 31 (power supply board) is disposed in a space not used for the operation of the air purifier 1, and the space can be used effectively, and the main body size (depth) of the air purifier 1 is large. It becomes possible to deter.
<Lock lever>
Next, the lock lever 41 will be described with reference to FIGS.
Fig.15 (a) is a perspective view at the time of lock release of the air cleaner which concerns on embodiment of this invention. FIG.15 (b) is a perspective view at the time of locking of the air cleaner which concerns on embodiment of this invention. Fig.16 (a) is sectional drawing at the time of lock release of the air cleaner which concerns on embodiment of this invention. FIG.16 (b) is sectional drawing at the time of the lock | rock of the air cleaner which concerns on embodiment of this invention. Fig.17 (a) is the elements on larger scale at the time of lock release of the air cleaner which concerns on embodiment of this invention. FIG.17 (b) is the elements on larger scale at the time of the lock | rock of the air cleaner which concerns on embodiment of this invention.

  In the present embodiment, a lock for attaching (fixing so as not to be removed) the pre-filter 8a for collecting large dust on the most rearmost (outer) surface of the purification filter unit 8 to the housing 4. The structure of the lever 41 is shown. One lock lever 41 is provided on each side of the housing 4. The lock lever 41 is a slide type, and by switching the lock lever 41 up and down, the pre-filter 8a can be unlocked and locked to the housing 4. By sliding the lock lever 41 upward and releasing the lock of the prefilter 8a, the prefilter 8a can be removed from the housing 4, and the dust collection filter 8b and the deodorizing filter 8c can also be removed from the housing 4. Since the lock lever 41 is a slide type, it is not a complicated unlocking method and can be easily operated.

  The pre-filter 8a is attached to the housing 4 as follows. A pre-filter mounting convex portion 48 (see FIG. 6) formed integrally with the lower side of the pre-filter 8a is inserted into the pre-filter mounting concave portion 47 (see FIG. 6) formed in the housing 4 and rotated to the back side. The locking projections 50 formed on both side surfaces of the prefilter 8a are set on the mounting portion of the lock lever 41, and the lock lever 41 is slid down to enable locking. 4 is attached.

  Removal of the prefilter 8a from the housing 4 is as follows. The pre-filter 8a is inserted with the pre-filter mounting convex portion 48 into the pre-filter mounting concave portion 47 and attached with the lock lever 41. Therefore, after collecting the dust collected by sliding the lock lever 41 upward and releasing the lock, The prefilter 8a has the prefilter mounting recess 47 as a fulcrum, and can rotate the dust collection filter 8b and the prefilter 8a together and pull them out to the front. Can be provided. Furthermore, by putting a finger in the dust collection filter take-out groove 46 provided in the upper part of the housing 4 and pulling it with the finger on the upper part of the pre-filter 8a or the dust collection filter 8b, the air cleaner 1 having better handleability. Can be provided.

  Further, when removing the purification filter unit 8, it is desirable that the collected garbage can be exchanged without touching it as much as possible. As described above, since the prefilter 8a and the dust collection filter 8b can be taken out together, dust adhering to the dust collection filter 8b can be suppressed by the prefilter 8a and spilling on the floor or directly touching the hand. In addition, it is possible to provide the air cleaner 1 with better handleability.

In this embodiment, the lock lever 41 is provided on the left and right sides of the housing 4 so that the pre-filter 8a can be unlocked and locked by sliding up and down. However, the pre-filter 8a can be unlocked and locked by sliding the lock lever 41. This is not the case. For example, the lock lever 41 may be provided on the top and bottom of the housing 4 and the prefilter 8a may be unlocked and locked by sliding left and right.
<Front panel 4a>
FIG. 18 is an exploded perspective view of the front panel according to the embodiment of the present invention.

  As shown in FIG. 18, the front panel 4a on the front surface of the apparatus main body includes a glass plate 4a1 that has been tempered, a frame body 4a2 that holds the glass plate 4a1 and serves as a frame of the front panel 4a, a display unit 4a3, A panel base 4a4 that holds the glass plate 4a1 and the frame body 4a2 and serves as a skeleton of the front panel 4a.

  An operation unit using a touch switch is provided on the same plane as the surface of the glass plate 4a1.

As shown in FIG. 1, the front panel 4 a is provided on the front surface of the air cleaner 1. Conventionally, in the operation unit arranged on the upper surface of the device, there is a risk that fluid may invade from the top to the bottom due to a gap such as a joint of the operation button unit or the device housing. Is provided on the front surface of the air purifier 1 (the operation part by the touch switch is provided on the front surface of the air purifier 1), thereby providing an effect that the fluid is less likely to enter. In particular, by arranging the display unit 4a3 on the back surface of the unbroken glass plate 4a1, there is an effect that it is possible to prevent foreign substances, water, and the like from entering the internal substrate of the display unit 4a3.
<Glass plate 4a1>
Moreover, since the glass plate 4a1 which is the surface of the operation part is a smooth and hard glass surface, when the user wipes and cleans with a rag, the glass plate 4a1 is easy to clean and the surface may be damaged by water. There is an effect that there is little fear.

  Conventionally, the front panel is made of resin, and as a main method for improving the design, it has been necessary to perform high-precision polishing of the mold surface for producing a highly glossy surface. In addition, in order to make the design even higher, a method of post-processing such as painting and coating on the surface was taken, but the cost of post-processing is expensive, and coating unevenness due to subtle unevenness on the surface of the molded product ( Uniformity), contamination with foreign matter, etc., inevitably caused defects in the post-processing, which could increase the cost.

  By adopting the glass plate 4a1 in which the front panel 4a is tempered, it is possible to simultaneously obtain the beauty of gloss due to the uniform surface of the glass, uniformity during coating, and production stability.

  The glass plate 4a1 is coated with a transparent colored paint on the back surface (translucent coating is applied). Thereby, the light projected on the display unit 4a3 is clearly visually recognized. Further, when it is not necessary to display the projected light, the illumination can be turned off, and in that case, the appearance of the front panel 4a only with glass coating can be obtained and the design can be enhanced. In addition, except for the surface on which the display unit 4a3 is in contact, a coating for concealing light is applied over it so that the structure on the back surface cannot be seen through. The coating applied to the back surface of the glass plate 4a1 is the operation unit in which the non-irradiated part is not exposed so that there is no difference in the painted color appearance between the part where the operation result is irradiated and displayed by the lighting device (LED) from behind. A non-light-transmitting concealing coating is applied in a color combined with a printed film 4a31 (described later) having a display unit for displaying the operation result on the front surface of the glass plate. In other words, the portion of the back surface (back surface) of the glass plate 4a1 that is not irradiated with the display portion is painted in the same color as the color of the film 4a3 and without light transmission. In addition, the coating is provided on the backside except for a small part, and the front surface of the glass plate 4a1 that is touched by the user during operation is a uniform surface with no display such as printing, and has an excellent design. 4a is constituted. Since the surface of the glass plate 4a1 is a smooth surface as it is, the glass plate 4a1 is easily caught with a rag or the like and cleaned without any irregularities.

  Moreover, the protective film (not shown) is affixed on the back surface of the glass plate 4a1. This protective film protects the glass plate 4a1 from being scattered around even when a large impact is applied to the glass plate 4a1 and the glass is broken or cracked. Moreover, this protective film is affixed on the transparent colored paint surface. This film also has a role of preventing the internal structure from being seen through and impairing the appearance on the back surface of the glass plate 4a1.

  Further, the short direction of the display unit 4a3 and the short direction of the glass plate 4a1 are arranged to intersect each other. This is based on the property that when heat treatment is applied to the glass plate 4a1, the distortion tends to appear in the longitudinal direction. That is, in view of this property, it is configured to suppress the influence of the distortion of the glass plate 4a1 when the display unit 4a3 is installed.

  Here, when the display unit 4a3 is incorporated so that the longitudinal direction of the glass plate 4a1 is aligned with the longitudinal direction of the glass plate 4a1, it is affected by the distortion of the glass plate 4a1, and between the glass plate 4a1 and the detection unit on the display unit 4a3. There is a problem that gaps are easily generated, and the change in capacitance between the electrodes is irregular or difficult to change.

Therefore, in this embodiment, the longitudinal direction of the display unit 4a3 is arranged in a direction crossing the longitudinal direction of the glass plate 4a1.
<Display unit 4a3>
FIG. 19 is an exploded perspective view of the display unit according to the embodiment of the present invention.

  FIG. 19 is an exploded perspective view of the display unit 4a3. The structure of the display unit 4a3 will be described with reference to FIG.

  The display unit 4a3 includes a print film 4a31, a light guide plate 4a32, a touch switch substrate 4a33 that is a detection unit that detects a change in capacitance caused by touching the operation unit on the surface of the glass plate 4a1, and the display substrate 4a35. A light shielding plate 4a34 having a hole so as to emit the light of the illumination means only in the forward direction, and a control unit for controlling the illumination means (LED) on the substrate based on the detection result of the detection unit A display substrate 4a35 and a case 4a36 are provided. The display unit 4a3 includes a light guide plate 4a32, a touch switch substrate 4a33, a light shielding plate 4a34, and a display substrate 4a35. The display unit 4a3 includes a case 4a36 to which a surface film 4a31 is attached, and is illuminated by LEDs on the substrates. Then, the light is transmitted to the front surface of the glass plate 4a1, and is configured to appear to float up.

  A printing film 4a31 with characters and symbols removed is attached to the surface of the display unit 4a3. The printing film 4a31 is attached to the back surface of the glass plate 4a1 so that the adhesion or the gap is very small. Therefore, the character display can be clearly confirmed from the front through the glass plate 4a1. That is, the front panel 4a having excellent appearance and having an outer surface made of a flat glass plate 4a1 with high visibility is configured. Furthermore, the print color of the film 4a31 is such that when the glass plate 4a1 is viewed from the front, the difference between the display portion and the surrounding light-shielding coating does not appear, and the front panel 4a has a uniform appearance. The design is enhanced by making it visible.

  An LED for projecting the position of the detection unit is also mounted on the touch switch substrate 4a33, which is a detection unit that detects a change in capacitance, and the light guide plate 4a32 is disposed in close contact with the substrate surface of the touch switch substrate 4a33. Thus, the operation portion area on the surface of the glass plate 4a1 is clearly projected with the light. Further, the light guide plate 4a32 is in close contact with the film 4a31.

  The display substrate 4a35 is for controlling the illumination means (LED) on the substrate based on the detection result of the detection unit by the touch switch substrate 4a33 and transparently displaying the operation state on the glass plate 4a1.

  In addition, in the case of a device that is operated on the top surface and the device status is displayed, it is difficult to see the top surface of the device if it is separated from the device after the operation, and in many cases it is not possible to confirm the operation or state unless it is close The front panel 4a having the display unit 4a3 is provided on the front side of the air cleaner 1, and the state of the device is displayed by LED light illumination on the front side of the air cleaner 1, so that the device can be seen from a remote location. The state of can be clearly seen.

  The operation determination unit (not shown) determines the operation when the signal that detects the change in capacitance between the glass plate 4a1 surface operation unit and the touch switch substrate 4a33 exceeds a certain threshold. . When there is a change in the capacitance, an oscillation circuit that oscillates and changes in amplitude according to the change in the capacitance is included. As a result, the automatic control unit that has extracted the switch signal and the on / off signal output from the determination unit performs load drive output. Note that the determination unit may not output an on / off signal depending on the user's proximity to the surface operation unit of the glass plate 4a1 or the user's wiping operation for cleaning.

  FIG. 20 is a cross-sectional view of a front panel according to an embodiment of the present invention. The surface film 4a31 of the display unit 4a3 is attached to the back surface of the glass plate 4a1 facing the surface operation portion of the glass plate 4a1, and the character display is performed by LED light emission of the touch switch substrate 4a33 and the display substrate 4a35. Clearly illuminated from the back.

  Further, when a finger touches the surface operation unit on the glass plate 4a1, the detection unit on the touch switch substrate 4a33 senses the capacitance between the glass plate 4a1 and transmits the change to the determination unit. Then, when the determination unit determines the value and determines that the input is an operation, the programmed operation is operated.

  When the determination unit determines that the change in capacitance is input, the buzzer mounted on the display board 4a35 emits a notification sound, and the input operation state display location blinks to indicate that the operation has been switched. To do.

  By simply pressing the resin button on the operation unit and the button position on the operation unit decoration sheet, you can touch the mechanical switch such as a micro switch installed on the back of the unit. Operation is possible and operational feeling can be improved.

  The substrate case 4a36 has a convex portion, and the substrate case 4a36 is pressed against the glass plate 4a1 by the spring property of the convex portion. Accordingly, the substrates (touch switch substrate 4a33 and display substrate 4a35) positioned in the substrate case 4a36 can be pressed against the glass plate 4a1. Thereby, when the surface operation part of the glass plate 4a1 is touched, the possibility that the operation part does not operate can be reduced.

  Moreover, in the air cleaner 1, since the display unit 4a3 is larger than a display unit used for a refrigerator, for example, only a double-sided substrate is provided on the substrates (touch switch substrate 4a33 and the display substrate 4a35) arranged at the rear of the display unit 4a3. When using, there is a risk that it will be expensive. By using a double-sided substrate for the touch switch substrate 4a33 and a single-sided substrate for the display substrate 4a35 as in the present embodiment, the cost can be reduced. In addition, both substrates can be made more inexpensive by using single-sided substrates.

  The air purifier 1 described in the present embodiment has a structure in which air is sucked into the main body from the back surface of the main body of the air purifier 1 and air is discharged, and then the air is discharged outside the main body.

  Here, a general air purifier has a design panel on the front of the main body, an air suction port that sucks air into the machine from the back of the design panel, and a structure that exhausts the sucked air out of the main body through a filter inside the machine There are many things. When the touch switch substrate 4a33, the display substrate 4a35, and the like are arranged on the back surface of the design panel in such a structure that the air is sucked into the machine from the back surface of the design panel in this way, the wiring can be achieved by simply covering both substrates with the substrate case 4a36 In order to prevent the suction air from entering the inside of the substrate case 4a36, a case that covers it may be added or the opening of the opening may be added. A sealing material or the like is required, and there is a possibility that more costs may be required. In this embodiment, it is set as the structure which closed the back surface of the glass plate 4a1 which is the design panel of the front side by having set it as the structure which sucks air in the main body from the back side of the air cleaner 1 main body as mentioned above. It is possible to reduce the risk of the sucked air flowing into the touch switch substrate 4a33, the display substrate 4a35, and the like on the back surface of the design panel.

DESCRIPTION OF SYMBOLS 1 Air cleaner 2 Water supply mechanism 3 Humidification filter 3a Frame 3b Water receiving tray 3c Drain hole 4 Housing 4a Front panel 4a1 Glass plate 4a2 Frame 4a3 Display unit 4a31 Print film 4a32 Light guide plate 4a33 Touch switch substrate 4a35 Light shielding plate 4a35 4a36 Substrate case 4a4 Panel base 4b Side panel 4c Upper case 4d Rear panel 4e Rear case 4f Opening / closing lid 4g Opening 5 Purification filter unit mounting part 6 Tank base 6a Receptacle 6b Communication hole 7 Flap 8 Purification filter unit 8a Prefilter 8c Dust collection filter Deodorizing filter 10 Blower mechanism 11 Centrifugal fan 12 Scroll 12a Storage part 12b Upper opening part 12c Passage part 13 Motor 13a Large motor 13b Small Motor 14 Filter 16 Plate 20 Water tank 20a Communication hole 21 Pump 21a Adapter pipe 22 Water supply pipe 22a Water supply hole 23 Connection pipe 23a Connection part 24 Pumping pipe 24a Suction hole 26 Filter case 27 Bell mouth 28 Tank house 29 Motor holder 30 Shock absorber 31 Power supply board case 33 Power button 35 Wheel 38 Power cord 39 Detection lever 39a Rotating shaft 39b Shielding portion 39c Contact portion 40 Detection sensor 41 Lock lever 46 Dust collecting filter takeout groove 47 Prefilter mounting concave portion 48 Prefilter mounting convex portion 50 Locking convex part 53 Infrared light emitting part 54 Infrared light receiving part 55 Fixing screw boss 55a Long fixing screw boss 55b Short fixing screw boss

Claims (4)

A main body capable of storing a purification filter unit such as a dust collection filter or a deodorizing filter for collecting dust in the housing, an air suction port formed upstream of the purification filter unit, and air from the air suction port A centrifugal fan and an electric blower for taking in and passing air through the purification filter unit are provided in the main body,
A purification filter unit mounting portion for mounting the purification filter unit is formed in the housing,
The detection mechanism is attached to the upper surface of the purification filter unit mounting portion,
The detection mechanism includes a detection sensor and a detection lever.
The detection sensor is mounted in the main body,
The detection lever protrudes so as to be positioned in the purification filter unit mounting portion, and a detecting means capable of detecting the presence or absence of the dust collection filter by inserting the dust collection filter into the purification filter unit mounting portion. An air purifier characterized by being provided. A housing, a purification filter unit mounting portion formed in the housing, a purification filter unit attachable to and detachable from the purification filter unit mounting portion, and a motor provided downstream of the purification filter unit in the housing And a detection mechanism for detecting whether or not the purification filter unit is attached to the purification filter unit mounting portion,
The detection mechanism is attached to the upper surface of the purification filter unit mounting portion,
The detection mechanism includes a detection sensor and a detection lever.
One end of the detection lever is rotatable between a state located in the purification filter unit mounting portion and a state located between the detection sensors,
The state where one end of the detection lever is positioned between the detection sensors is a state where the purification filter unit is attached to the purification filter unit mounting portion,
The state in which one end of the detection lever is located in the purification filter unit mounting portion is a state in which the purification filter unit is not attached to the purification filter unit mounting portion.   The air cleaner according to claim 1 or 2, wherein the detection sensor is an infrared sensor.   When the dust collection filter is not attached to the purification filter unit mounting portion of the purification filter unit, the operation of the air cleaner is controlled to stop and the operation of the air cleaner is operated even if the operation portion is operated. The air cleaner according to any one of claims 1 to 3, wherein the air cleaner is controlled so as not to perform the operation.