JPH1043629A - Air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable efficient suction of cigarette smoke, etc., and to obtain a high cleaning capacity by installing a suction-induction plate which extends along a part of the periphery of a suction port and forward from the suction port and induces air to the suction port in an air cleaner in which dust charged by an ionization part is collected into a dust collection part. SOLUTION: In an air cleaner in which an air passage 4 is formed in a casing 1, and an ionization part 5 and a dust collection part 6 are arranged in the passage 4, electricity is discharged from an ionization wire 5a to a counter member 5a in the part 5, and an ionic wind is generated by the collision between charged particles and air molecules. Application electrode plates 6a and dust collection electrode plates 6b are laminated alternately at prescribed intervals to constitute the dust collection part 6. A suction induction plate 7 is received freely forward/backward movably in a receiving part 1e formed in the casing 1. With the plate 7 extracted from the receiving part 1e, air in front of a suction port 2 is induced by the plate 7, and for example, cigarette smoke, etc., are led effectively into the port 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air cleaner for collecting dust charged by an ionization unit in a dust collection unit.

[0002]

2. Description of the Related Art Various types of air purifiers, such as a wall-mounted type and a desktop type, have been provided. In this type of air purifier, an air path from an inlet to an outlet is defined in a casing.
A ventilation fan that generates a ventilation flow, an ionization unit that charges dust by electric discharge, and a dust collection unit that collects the charged dust are arranged.

However, as a practical matter, as shown in FIG. 4, if the casing 91 has only the suction port 92 which is a mere opening, the smoke 94 of the cigarette 93 which is slightly away from the suction port 92, etc. It is difficult to be sucked through the suction port 92, and thus there is a problem in the cleaning ability. In addition, if the air volume of the blower fan is increased, the suction capacity is slightly increased. However, since the noise caused by the operation noise of the blower fan originally became a problem, the air volume cannot be increased. In particular, it has been desired to reduce noise as much as possible in a desk-top type.

Accordingly, an object of the present invention is to provide an air purifier that is quiet and can efficiently suck smoke and the like of cigarettes.

[0005]

In order to solve the above-mentioned problems, according to the present invention, there is provided an air passage defined in a casing from an inlet to an outlet, and a ventilation flow generating means for generating a ventilation flow in the air passage. An air purifier comprising: an ionization unit arranged in the air passage to charge dust by discharge; and a dust collection unit arranged in the air passage downstream of the ionization unit to collect charged dust. A suction induction plate extending substantially along at least a part of the periphery of the suction port and in front of the suction port to draw air to the suction port is provided.

[0006] The air in front of the suction port is attracted by a suction port induction plate extending from the periphery of the suction port to the front of the suction port,
For example, tobacco smoke or the like floating in front of the suction port can be effectively guided to the suction port. This is based on the principle that if there is a plate surface where the wind is flowing, the wind will flow along the plate surface. Since the air in front of the suction port can be attracted by the suction induction plate as described above, for example, when a blower fan is used as the ventilation flow generating means, it is possible to reduce the air volume of the blower fan, thereby reducing noise. I can do it.

The expression "substantially along at least a part of the periphery of the suction port" means that, for example, a rectangular suction port should follow at least one of an upper edge, a lower edge, a left edge and a right edge. Yes, "approximately along" means that the effect can be expected up to a predetermined distance (for example, about 5 cm) from the periphery, so that this range is allowed. It is preferable that the suction attraction plate be capable of moving back and forth between a use position protruding from the casing to attract air and a non-use position accommodated in the casing. In this case, when the suction induction plate is stored in the casing when not in use, it does not become an obstacle. In particular, the present invention is effective when the air purifier is applied to a table. In addition, "to be accommodated in the casing" has a meaning including a case of being accommodated in the casing and a case of being accommodated along the outer surface of the casing.

[0008] It is preferable that the ionization section constitutes the ventilation flow generating means by generating a ventilation flow in an air path by ionic wind generated by discharge. In this case, since the air flow is of the ion wind type, the air flow can be generated without using a fan for generating the air flow, and the air flow is quiet. Further, even in the case of the ion wind type, which is somewhat inferior to the attraction force, a sufficient attraction force can be exerted because the suction attraction plate is used.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION
This will be described with reference to the accompanying drawings. FIG. 1 is a schematic perspective view of an air purifier according to one embodiment of the present invention, and FIG. 2 is a schematic sectional view showing an internal configuration of the air purifier. Referring to these drawings, the present air purifier is of a desktop type, in which a rectangular suction port 2 is provided on a front surface 1a of a rectangular parallelepiped casing 1 that can be placed on a table, and a rear surface 1b. A rectangular outlet 3 is formed. In the inlet 2 and the outlet 3
Crosspieces 2a and 3a for regulating finger insertion are provided. An air path 4 extending from the suction port 2 to the air outlet 3 is formed in the casing 1, and an ionization section 5 and a dust collection section 6 are arranged in this air path 4 in this order.

The ionization section 5 has a positive ionization line 5
A discharge is caused from a to the opposite member 5b in the form of a round bar on the minus side, and the opposite member 5b is disposed at a predetermined distance from the ionization line 5a along the direction of the ventilation flow K. This is to facilitate the generation of ion wind in the direction of the ventilation flow K due to the discharge from the ionization line 5a to the facing member 5b. The ionic wind is generated when the charged particles collide with air molecules and the air molecules collide with each other one after another.

The dust collecting section 6 is formed by alternately stacking a positive-side applied electrode plate 6a and a negative-side dust collecting electrode plate 6b at a predetermined interval. The application electrode plate 6a and the dust collection electrode plate 6b face each other in a direction perpendicular to the direction of the ventilation flow K. That is, each of the electrode plates 6a and 6b has its plate surface along the direction of the ventilation flow K. The casing 1 accommodates a rectangular suction induction plate 7 that slides forward from the accommodation section 1e formed along one side surface 1c to the front of the casing 1 and retreats into the accommodation section 1e by sliding. This suction induction plate 7
Is one side edge 2 of the suction port 2 in the advanced use position.
b to extend forward. In the retracted non-use position, the suction attraction plate 7 is almost completely housed in the housing portion 1e, but the front end 7a of the suction attraction plate 7 protrudes from the front surface 1a of the casing 1 to such an extent that it can be grasped by a finger.

Reference numeral 1f denotes an engagement projection provided at the front end of the housing portion 1e, and reference numeral 7b denotes an engagement projection provided at the rear end of the suction induction plate 7. The engagement projections 1f and 7b engage with each other to prevent the suction attraction plate 7 from falling out of the housing portion 1e and to position the suction attraction plate 7 at the use position. In the present embodiment, the air in front of the suction port 2 is attracted by the suction port induction plate 7 at the use position, and, for example, tobacco smoke or the like floating in front of the suction port is effectively guided to the suction port 2. be able to. This is based on the principle that if there is a plate surface where the wind is flowing, the wind will flow along the plate surface.

[0013] Further, since the suction induction plate 7 is accommodated in the accommodating portion 1e in the casing 1, it does not become an obstacle. In particular, the desk-top type as in the present embodiment does not take up space and can be freely set in the arrangement location, so that it is easy to use. Further, the ionization unit 6 is of an ion wind type in which a ventilation flow K is generated in the air passage 4 by an ion wind generated by the discharge, and the present ionization unit 6 constitutes a ventilation flow generation unit. Therefore, the ventilation flow K can be generated without using a fan for generating the ventilation flow, and the system is quiet. In addition, even if it is of the ion wind type, which is slightly inferior to the suction force, the suction attraction plate 7 is used, so that a sufficient suction force can be exhibited.

The suction induction plate 7 may be along at least one of the upper edge, the lower edge, the left edge, and the right edge as long as the rectangular suction port 2 is as in this embodiment. However, regarding the lower edge, in the case of the tabletop type as in the present embodiment, it is unnecessary because the desk surface itself is considered to perform the attracting action. Further, the suction attraction plate 7 can be expected to have an attraction effect up to a predetermined distance (for example, about 5 cm) from the side edge of the suction port 2, so that it is sufficient to follow the portion in this range.

FIG. 3 shows another embodiment of the present invention. With reference to the figure, in the present embodiment, a suction induction plate 70 that is rotatable about a rotation axis 70a along one side edge of the front surface 1a of the casing 1 is provided. In the present embodiment, the suction induction plate 70 at the time of non-use can be set in a posture that does not interfere with the one side surface 1 c of the casing 1.

The present invention is not limited to the above embodiments. For example, the present invention can be applied to a stationary type air cleaner other than a desktop type. Alternatively, the airflow may be increased by using an auxiliary fan that is very quiet in a slight breeze. Further, a straightening plate such as a louver may be provided in the suction port 2. Further, it is possible to use an electrode plate instead of the round bar as the facing member 5b. In addition, various changes can be made within the scope of the present invention.

[0017]

According to the first aspect of the present invention, the air in front of the suction port is attracted by the suction port inducing plate extending from the peripheral edge of the suction port to the front of the suction port. As a result, smoke and the like of cigarettes can be effectively guided to the suction port, so that high cleaning ability can be exhibited. Further, when a blower fan is used as the ventilation flow generating means, the airflow of the blower fan can be reduced, and noise can be reduced.

According to the second aspect of the present invention, the suction induction plate when not in use can be stored in the casing.
It does not get in the way. According to the third aspect of the present invention, since the air-flow generating means is constituted by the ionizing section, the air-flow generating means can be used without using a fan for generating the air flow.
Can generate ventilation flow and is quiet. Further, even in the case of the ion wind type, which is somewhat inferior to the attraction force, a sufficient attraction force can be exerted because the suction attraction plate is used.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a use state of an air purifier according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the air purifier.

FIG. 3 is a schematic perspective view showing a use state of an air purifier according to another embodiment of the present invention.

FIG. 4 is a schematic perspective view of a conventional air purifier.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Casing 1a Front surface 2 Inlet 2b Side edge 3 Outlet 4 Air path 5 Ionization part 5a Ionization line 5b Opposing member 6 Dust collecting part 6a Applied electrode plate 6b Dust collecting electrode plate 7, 70 Suction induction plate

Claims (3)

[Claims] An air passage (4) defined in a casing (1) from an inlet (2) to an air outlet (3), and an air flow through the air passage (4).
(K), and an ionization unit (5) that is disposed in the air path (4) and charges the dust by discharge.
And a dust collecting portion (6) disposed in an air passage (4) downstream of the ionizing portion (5) for collecting charged dust, wherein a peripheral portion of the suction port (2) is provided. An air purifier characterized by comprising a suction attraction plate (7) extending substantially along at least a part (2b) of the above and forward of the suction port (2) to draw air to the suction port (2). The suction attraction plate (7) has a use position protruding from the casing (1) to attract air,
2. The air purifier according to claim 1, wherein the air purifier is movable back and forth between a non-use position accommodated in (1). 3. The method according to claim 1, wherein the ionizing section (5) forms the ventilation flow generating means by generating a ventilation flow (K) in the air path (4) by ionic wind generated by the discharge. The air purifier according to claim 1 or 2, wherein: