JP3426873B2 - Air cleaner - Google Patents

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 cleaning air in a home or the like.

[0002]

2. Description of the Related Art Conventional air purifiers drive a fan built into a main body to suck outside air from an intake port provided in the main body, pass through a dust collecting section provided inside to remove dust, and then discharge the air. In addition to the so-called fan-type air purifier that exhausts air from the outlet to the room, a high voltage is applied between the discharge electrode and the counter electrode to generate corona discharge without using a fan, and this corona discharge generates ionic wind. Equipped with an ion wind generating means for generating, by utilizing the ion wind induced by this ion wind generating means, the outside air is sucked into the main body to charge the dust in the air and remove it in the dust collecting part, and thereafter A so-called ion-type air purifier that exhausts air to, for example, Jikken 2-43495
It is known from the official gazette.

In the fan type air purifier, the air in the room is forcedly circulated by the fan to obtain a large amount of circulating air, so that the dust can be removed efficiently, but the noise due to the rotation of the fan and the temperature change. There is a problem in that when the temperature is low, the circulating wind may make you feel cold. On the other hand, an ion-type air purifier has a low air volume and is inefficient, but it does not feel cold even when it is quiet and the temperature is low.

Therefore, it is conceivable to provide one air purifier with the functions of both of these air purifiers. In this case, the following matters.

Since dust is liable to adhere to the discharge electrode forming the ion wind generating means and must be cleaned frequently, it is necessary to remove the discharge electrode from the main body easily. However, a high voltage is applied to the discharge electrode. Since the voltage is being applied, when the discharge electrode is removed, the operation of the high voltage generator must be stopped for safety so that the high voltage is not applied. If all the power is turned off by the safety switch that works in conjunction with the removal of the discharge electrode to stop the high voltage generator, if the discharge electrode is lost or cannot be used due to a malfunction, etc. There is a problem that the fan cannot be installed in a predetermined position, and as a result, the safety switch cannot be closed and the power cannot be turned on, so that the function of the fan type air cleaner cannot be utilized.

[0006]

DISCLOSURE OF THE INVENTION The present invention provides a fan type air purifier capable of operating the function even when the discharge electrode cannot be mounted at a predetermined position due to a loss or a failure or cannot be mounted. The challenge is to get a cleaner.

[0007]

SUMMARY OF THE INVENTION According to the present invention, a high voltage is applied between a discharge electrode and a counter electrode provided in a main body to generate a discharge, and this discharge generates an ionic wind to suck the outside air. Ion wind generating means for charging the dust inside, a first dust collecting section for removing the dust in the charged outside air, and a second dust collecting section for sucking the outside air by rotating a fan provided in the main body A high-voltage generator that has a fan-type air purifying unit that removes dust and then exhausts the gas, attaches the discharge electrode to the main body in a detachable manner, and removes the discharge electrode from the main body to generate the high voltage. A safety switch for stopping the operation is provided, and the safety switch makes it possible to energize the electric motor for rotating the fan even when the operation of the high voltage generator is stopped.

According to this structure, when the discharge electrode cannot be attached at a predetermined position due to loss or malfunction or is not attached at all, the safety switch stops the operation of the high voltage generator, but causes the fan to rotate. The fan type air cleaning means can be operated.

Further, the ion wind generating means may only charge the dust in the outside air, but may be a constituent element of so-called ion wind type air purifying means capable of sucking the outside air by the ion wind. In the case of simply charging the dust in the outside air, the charged dust is captured by the dust collecting portion of the fan-type air cleaning means. When it is used as a component of the ion-type air cleaning means, the dust collecting part of the ion-type air cleaning means and the dust collecting part of the fan-type air cleaning means may be common or different.

According to the present invention, the discharge electrode is attached to the main body case in a detachable cover, and the cover is attached to the main body case with the discharge electrode removed from the cover. The first safety switch inserted in the energization path is opened, the second safety switch is closed, and the electric motor is energized via the second safety switch.

With this configuration, the electric motor can be energized by the second safety switch even when the discharge electrode is removed.

[0012]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 is an air purifier body case, which is composed of a front case 2 and a rear case 3. In the upper center of the front case 2,
The makeup board 4 is attached. Reference numeral 5 denotes a middle frame mounted so as to partition the inside of the main body case 1 into front and rear, and an electric motor 6 is mounted at the center of the middle frame 5. A vent hole 7 is provided in the middle frame 5 around the electric motor 6. A fan 8 rotated by an electric motor 6 is provided in a space behind the middle frame 5 in the main body case.

On the inner frame 5 and the rear case 3, a peripheral wall 10 of a spiral fan case 9 that surrounds the fan 8 is formed. The upper portion of the fan case 9 is opened to serve as a discharge port, and the lattice-shaped second exhaust holes 11 provided in the rear case 3 are provided.
Is in communication with. A second dust collecting portion 12 is housed in a space in front of the inner frame 5 (the first exhaust hole will be described later) (the first dust collecting portion will be described later). The second dust collecting portion 12 is composed of a so-called electret filter 13 in the form of a bellows and a deodorizing filter 14 made of activated charcoal, and both filters 13 and 14 are integrated by being surrounded by a frame 15. . Reference numeral 16 is a claw that holds the second dust collecting portion 12 so as not to come off the inside of the frame 15. The second dust collecting portion 12 can be taken out from an outlet 17 (see FIG. 4) formed on the side surface of the front case 2. Reference numeral 18 is a handle formed on the frame body 15 for taking out.

The front surface of the front case 2 is covered with a front cover 19. The main body shell of the air purifier is composed of the main body case 1 and the front cover 19. As shown in FIG. 3, the front cover 19 is provided with a number of vertically elongated slit-shaped first intake holes 20. To attach the front cover 19 to the front case 2, use the front cover
A pair of projecting pieces 21 projecting from the lower end of 19 are engaged with a pair of receiving portions 22 formed at the lower end of the front case 2 (see FIG. 1), and a pair of strips formed on the left and right of the upper part of the front case 2 are formed. Locking hole 23 (Fig. 14
(See), a pair of claws attached to the upper left and right of the front cover 19.
This is done by engaging 24.

This situation will be described with reference to FIG. A slide plate storage box 26 having a through hole 25 on the back side of the front cover 19 is screwed.
Mounted by 27, slide plate 28
Is slidably mounted to the left and right, and the claw 24 protruding from the through hole 25 is projected on the slide plate 28. The slide plate 28 is always outward by the spring 30, that is, the claw 24 is engaged with the locking hole 23. It is urged to meet. When the pressing portion 29 formed at the end of the slide plate 28 is pressed inward against the spring 30, the engagement between the claw 24 and the locking hole 23 is released,
The front cover-19 can be removed from the front case 2, and the holding part
When you release your hand from 29, the force of the spring 30 causes the pawl 24 to engage with the locking hole.
23 engage. In this way, the front cover-19 is attached to the front case 2
It can be attached and detached more easily.

The front cover 19 and the front case 2 are each provided with a discharge line 31 serving as a discharge electrode and a counter electrode 32. A negative high voltage is applied to the discharge line 31 while a positive voltage is applied to the counter electrode 32. By applying voltage (may be grounded), discharge line 31 and counter electrode
An ionic wind generating means is configured to generate an electric discharge between 32 and induce an ionic wind by this electric discharge.

The ion wind generating means will be described below.
The discharge line 31 is attached to a gutter-shaped discharge line attachment case 33 made of synthetic resin as shown in FIG. This mounting case 33
Is attached to the central portion on the back side of the front cover 19 so as to be detachable in the vertical direction, as will be described later. As shown in FIG.
The metal terminal plate 34 as shown in FIG. This terminal board 34 is provided in a hole 35 formed in the mounting case 33 as shown in FIG.
By press-fitting in the direction of the arrow, due to its elasticity, it is fixedly held on the upper end of the mounting case 33.

On the other hand, at the lower end of the mounting case 33, as shown in FIG.
A U-shaped elastic piece 36 as shown in FIG. 1 is integrally formed, and a U-shaped metal reinforcing plate 37 is attached along the inside of the elastic piece 36. One end 38 of the reinforcing plate 37 is attached to the case 33.
The reinforcing plate is engaged with a locking portion 39 provided at the lower end of the reinforcing plate and is rotated in the direction of the arrow in FIG.
The hole 40 provided on the 37 is engaged with the claw 41 provided on the elastic piece 36, and is attached along the elastic piece 36. In this mounted state, the elastic piece 36 is reinforced and the elasticity of the elastic piece 36 is adjusted to be stiff.

Each of the terminal plate 34 and the reinforcing plate 37 has a key-like claw.
42 and 43 are formed by bending, and both ends of the discharge wire 31 are attached to the claws 42 and 43 via springs 44. The discharge wire 31 is appropriately tensioned by a spring 44. If the spring 44 is directly engaged with the synthetic resin mounting case 33, the tension of the spring 44 may cause the engaging portion to deform due to long-term use. Since it is attached to the plate 37, it is possible to prevent deformation of the attachment portion due to long-term use.

Next, a method of mounting the mounting case 33 having the discharge wire 31 mounted on the front cover 19 which is a part of the main body will be described. Projecting pieces 45 and 46 are formed inwardly in the upper and lower portions of the center of the back surface of the front cover 19, respectively, and one engaging hole 47 is formed in the upper projecting piece 45 and two projecting pieces are formed in the lower projecting piece 46. One engagement hole 48 is formed. One protrusion 49 is provided on the upper end of the mounting case 33, and two claws 50 are formed on the lower surface of the elastic piece 36 at the lower end of the mounting case. Then, with the surface 95 corresponding to the bottom of the gutter of the gutter-shaped mounting case 33 facing the front cover 19, the protrusion 49 is put into the engagement hole 47 from below as shown in FIG. By pushing the elastic piece 36 as shown by the arrow in FIG. 12, the pawl 50 is engaged with the engaging hole 48 by the elastic force of the elastic piece 36, and the mounting case 33 is mounted on the front cover 19. You can Reference numerals 51 and 52 are guide pieces integrally formed from both sides of the projecting pieces 45 and 46, respectively, and serve as guides when inserting the projecting portion 49 into the engaging hole 47 and pushing in the elastic piece 36.

Since the elastic piece 36 is reinforced by the reinforcing plate 37, the elasticity of the elastic piece 36 does not sag no matter how many times the mounting case 33 is attached to or detached from the front cover 19, and the claw 50 is not removed. The engaging hole 48
The mounting case 33 can be securely attached to the front cover 19 by reliably engaging with the front cover 19.

At the lower end of the mounting case 33, an operating piece 54 for operating a first safety switch 53 inserted in a circuit for operating a high voltage generator 80, which will be described later, for supplying a high voltage to the discharge wire 31. Are integrally formed (see FIGS. 10, 13, and 15). Use this operation piece 54 to cover the mounting case 33 with the front cover.
When the front cover 19 is attached to the front case 2 with the front cover 19 attached, the first safety switch 53 is closed to operate the high voltage generator 80, and the front cover 19 is removed from the front case 2. , The first safety switch 53 is opened and the high voltage generator 80
I'm trying to stop the operation of.

By the way, on the back surface of the front cover 19, a pre-filter 55 for removing the dust of the air sucked from the slit-shaped first intake holes 20 in advance is attached. 33 cannot be attached to the front cover 19. The structure at this point will be described below.

As shown in FIGS. 2 and 13, the pre-filter 55 is divided into two parts on the left and right, and like the front cover 19, a frame 57 made of synthetic resin having a large number of vertically elongated slits 56 and this frame. It comprises a synthetic resin net 58 (see FIG. 17) integrally molded with the body 57. With these two pre-filters 55, the front cover 19
Then, the entire surface of the first intake hole 20 is covered. On the back surface of the front cover 19, a wall 59 that faces the front case 2 side is integrally formed on the left and right sides so as to surround the outside of the first intake hole 20, and on this wall 59, the left and right pre-filter frame bodies 57 are formed. A through hole 61 is formed to receive the engaging piece 60 projecting outward from each of the above. (See FIG. 2) Pre-filter fixing plates 62 are fixed by screws 63 at two upper and lower positions in the center of the back surface of the front cover 19. As shown in FIG. 2 and FIG. 17, a pair of fixing pieces 64 are projected on the fixing plate 62, and the fixing pieces 64 have left and right pre-filter frame members 57.
Through holes 66 are formed to receive the claws 65 projecting from the inside of each. The fixing plate 62 is made of synthetic resin and has a pair of fixing pieces 64.
Have elasticity in the direction of moving toward and away from each other.

Therefore, by inserting the engaging piece 60 provided on the outer side of the pre-filter frame 57 into the through hole 61 and inserting the claw 65 protruding inward into the through hole 65 of the fixing piece 64, The pre-filter 55 is attached to the front cover 19, and at this time, as shown in FIG.
As described above, the interval between the pair of fixing pieces 64 becomes narrow. This is the figure
Fixing piece 64 with the root part 67 where the width of the claw 65 is widened like 19
By pressing the two so that they are closely spaced from each other. In this state, when the mounting case 33 is approached to the front cover 19 in order to mount it on the front cover 19 as described above, the fixing piece 64 is located in the gutter of the gutter-shaped mounting case 33 as shown in FIG.
It can be brought close to the fixing piece 64 without being disturbed, and the mounting case 33 can be mounted at a predetermined position of the front cover 19.

However, when the pre-filter 55 is not attached to the front cover 19, the pair of fixing pieces 64 have a wide interval as shown in FIG. 18 due to their elasticity. Therefore, even if the mounting case 33 is attached to the front cover 19 in this state, the side wall 68 corresponding to the side surface of the gutter of the gutter-shaped mounting case 33 contacts the tip of the fixing piece 64 as shown in the figure, and the fixing piece 64 is fixed. The mounting case 33 cannot be attached to the predetermined position of the front cover 19 because of the hindrance.

The mounting case 33 cannot be mounted on the front cover 19 unless the pre-filter 55 is mounted as described above.
When a high voltage is applied between the counter electrode 32 and the counter electrode 32 to cause discharge, the pre-filter 55 must be installed and the first intake hole of the front cover 19 must be installed.
By removing cotton dust, insects, etc. contained in the outside air sucked from 20 with the pre-filter 55, these may adhere to the discharge line 31 or the counter electrode 32 to lower the discharge efficiency or cause an abnormal discharge. This is to prevent it from happening.

Although the discharge line side of the ion wind generating means has been described above, the counter electrode side will now be described.
A square metal counter electrode 32 is attached to the front case 2 so as to face the slit 20 of the front cover 19. At the upper end of the counter electrode 32, a contact piece 70, which is inserted into the front case 2 and to which a positive high voltage is applied, is bent and formed as shown in FIG. A rib 71 projects from the front case 2 so as to surround the counter electrode 32, and a wall 59 projecting from the front cover 19 is fitted to the outside of the rib 71 as shown in FIG. A large number of horizontally elongated slit-shaped first exhaust holes 72 are formed in the wall 59 (see FIGS. 2 and 4). On the outside of the rib 72 of the front case 2, a number of horizontally elongated slit-shaped second intake holes 73 are formed.

The counter electrode 32 has a first electrically insulating material.
A dust collecting paper 74 that serves as a dust collecting portion is attached. This dust paper 74
Is similar to kitchen paper. The dust collecting paper 74 is pressed by the pressing plates 75, 75 above and below so as not to come off from the counter electrode 32. As shown in FIG. 23, the pressing plate 75 is rotatable by pivotally supporting a shaft 76 projecting from the left and right ends of the pressing plate 75 to a bearing portion 77 provided on the rib 71. Further, the spring 78 wound around the shaft 76 constantly urges the dust collecting paper 74 in the direction of pressing it against the counter electrode 32. By rotating the pressing plate 75 against the biasing force, the dust collecting paper 74 can be removed from the counter electrode 32 and replaced.

A high voltage terminal 81 to which a high negative voltage is supplied from the high voltage generator 80 is provided above the counter electrode 32 of the front case 2 (see FIGS. 14 and 16). When the front cover 19 with the mounting case 33 is attached to the front case 2, the discharge wire 31
The terminal plate 34 having the upper ends thereof connected to the high voltage terminal 81 as shown in FIGS. 1 and 16 applies a high negative voltage to the discharge line 31. Further, a positive high voltage from the high voltage generator 80 is supplied to the contact piece 70 of the counter electrode 32.

By the way, the negative high-voltage terminal 81 and the contact piece 70 to which a positive high voltage is supplied are covered with a protective cover 84 mounted on the back surface of the front case 2 as shown in FIG. Both walls 81, 70 are partitioned by a partition wall 85 integrally formed with 84. This is because if not covered with the protective cover 84, dust will adhere to the high-voltage terminal 81 and the contact piece 70, or dust will enter between the two, and due to the influence of the adhered dust and the invaded dust, both
Although there is a risk of discharge occurring between 81 and 70, such a discharge is prevented by covering with the cover 84 to prevent dust from adhering and entering between the two.
Even if some dust adheres or enters, the partition wall 85 separates the two so that the creepage distance between the two 81, 70 is made longer and the discharge is less likely to occur.

The first safety switch 53 is provided below the front case 2 and is operated by the operation piece 54 projecting from the lower end of the mounting case 33 as described above. A second safety switch 83 operated by an operation piece 82 provided on the upper rear surface of the front cover 19 is provided on the upper portion of the front case 2 (see FIG. 16). This safety switch 83 is for turning off all power when the front cover 19 is removed from the front case 2.

FIG. 20 shows an electric circuit diagram. An energizing circuit 89 from the power plug 87 to the electric motor 6 via the second safety switch 83 and the main switch 88 and an energizing circuit 90 to the high voltage generator 80 are connected in parallel. The fan operation switch 91 is connected to the energizing circuit 89 for the electric motor and the energizing circuit for the high-voltage generator.
90 includes an ion operation switch 92 and the first safety switch.
53 are inserted respectively. The main switch 88, the fan operation switch 91 and the ion operation switch 92 are the front case 2
It is provided on the operation panel 93 provided on the upper surface.

Next, the operation will be described. When the main switch 88 is turned on and the ion operation switch 92 is turned on, the high voltage generator 80 operates and the negative high voltage on the discharge line 31, for example, -7K.
A voltage of V is applied, and a positive high voltage such as + is applied to the counter electrode 32.
A voltage of 7 KV is applied. On the other hand, the electric motor 6 is not energized,
The fan 8 does not rotate.

As a result, a corona discharge is generated between the discharge wire 31 and the counter electrode 32 to generate an ionic wind. Due to this ionic wind, the outside air is sucked from the first intake hole 20 of the front cover 19, and the dust contained in the sucked air is negatively charged in contact with the gas ions and electrons generated by the discharge, and has a high potential. The charged dust adheres to the dust collecting paper 74 attached to the counter electrode 32 as it moves toward the electrode 32. Then, the air from which the dust has been removed has a large number of the horizontally long slit-shaped first exhaust holes 72.
Released more. In FIG. 2, arrow A shows the flow of air at this time.

Here, the discharge line 31, the counter electrode 32, the dust collecting paper 7
4. The front cover 19 and the like constitute ion air type air purifying means for sucking the outside air by the ion wind, removing the dust at the dust collecting portion and then exhausting it. Further, in this case, the amount of ventilation is small because it is attracted only by the ion wind, and the dust collection capability is poor, but the indoor air can be kept clean without feeling the noise caused by the rotation of the fan 8 or the cold caused by the blown air. . Therefore, the operation is suitable when the air is slightly contaminated or when the temperature is low.

If nothing is present between the discharge line 31 and the counter electrode 32 during operation of the ion wind type air cleaning means, the discharge generated between the two will be the discharge line 31 and the counter electrode 32.
In the shortest discharge distance between them, that is, in the central portion of the counter electrode 32, as a result, dust is attracted to the central portion of the dust collecting paper 74, and the central portions of the counter electrode 32 and the dust collecting paper 74 deteriorate. However, there is a problem that the dust collecting paper is not used effectively and the dust collecting efficiency is poor.

Therefore, in order to solve this problem, the discharge line
The gutter-shaped mounting case 33 to which the 31 is attached is attached to the front cover 19 so that the surface 95 corresponding to the bottom of the gutter is positioned so as to block the shortest discharge distance between the discharge wire 31 and the counter electrode 32. . That is, this surface 95 serves as a shield that shields the shortest discharge distance between the discharge line 31 and the counter electrode 32. Then, on both sides of the shielding portion 95, that is, the side walls 68 corresponding to the side surfaces of the gutter are uneven (corrugated) as shown in FIG.
I have to.

With such a structure, the discharge line 31 having a short discharge distance where discharge is likely to be concentrated is blocked by the shielding portion 95, so that the concentration of discharge is avoided and the discharge is made uniform. In addition, the uneven side wall 68 causes the side wall 68 to also act as a shielding portion, and this shielding portion alternately forms a portion that strengthens the shielding (a convex portion) and a portion that weakens the shielding (a concave portion). , The discharge between the discharge line 31 and the counter electrode 32 is made stronger and weaker depending on the position, and as a result, the discharge is diffused over the whole of the counter electrode 32 to generate the discharge, thereby making the discharge more uniform.

FIG. 21 shows the state of this discharge. For the sake of clarity, the prefilter 55 and the prefilter fixing plate 62 are omitted. In the figure, arrow A shows the state of discharge, and arrow B
Shows the state of the outside air sucked by the ion wind.

As a result, dust is attracted to the entire dust collecting paper 74, the dust collecting paper can be effectively used, the dust collecting efficiency can be improved, and the number of times of exchanging the dust collecting paper 74 can be reduced. Further, the centralized deterioration of the counter electrode 32 and the central portion of the dust collecting paper 74 can be reduced.

Next, the fan operation switch 91 of the operation panel 93
When turned on, the high voltage generator 80 does not operate, and no high voltage is applied to the discharge line 31 or the counter electrode 32. On the other hand, the electric motor 6 is energized and the fan 8 rotates. As a result, the air is not sucked by the ionic wind, and instead the arrow B in FIG.
As described above, the outside air is sucked from between the front cover 19 and the front case 2 through the large number of horizontally elongated slit-shaped second intake holes 73, passes through the second dust collecting portion 12, and the fan casing 9 The gas is exhausted into the room through the second exhaust hole 11 through the inside. In this process, the dust contained in the sucked air is not included in the second dust collecting portion.
Captured at 12 and purified.

In this case, the second dust collecting portion 12, the fan 8, the electric motor 6 and the like constitute a fan type air purifying means, and the fan type air purifying means is operated to forcibly circulate the air in the room. Since a large amount of circulating air is obtained, the dust can be efficiently removed by the second dust collecting unit 12. Therefore, this operation is suitable when the air in the room is dirty or when the air in a large room is purified.

As described above, the ion operation and the fan operation can be appropriately selected, and the desired operation can be performed according to the degree and size of the dirt in the room, the temperature, and the like. Further, if the ion operation switch 92 and the fan operation switch 91 are closed at the same time, the ion operation and the fan operation can be performed at the same time.

The maintenance of the dust collecting paper 74, the discharge wire 31, etc. is performed as follows. When replacing the dust collecting paper 74, replace the front cover.
19 is removed from the front case 2, but if the front cover 19 is removed, the discharge line 31 comes with it. Therefore, when replacing the dust collecting paper 74, the discharge line 31 does not interfere, and the work is It's easy to do. On the other hand, the discharge wire 31 removed from the
Since the contact with 81 is released, negative high voltage is not supplied and it is safe to touch the discharge line. Also, by removing the front cover 19, the second safety switch 83 and the first safety switch 53 Since the high voltage generator 80 is opened and the operation of the high voltage generator 80 is stopped, the positive high voltage is not applied to the counter electrode 32, and the dust collecting paper 74 can be safely replaced.

Also, dust adheres to the discharge wire 31 and the mounting case 33, which necessitates cleaning. However, in the mounting case 33, the elastic piece 36 of the mounting case 33 must be lifted up to disengage the pawl 50 from the engaging hole 48. Can be easily removed, and the discharge wire 31 can be easily removed from the mounting case 33 by removing the spring 44 from the key-shaped claws 42 and 43 of the terminal plate 34 and the reinforcing plate 37. -The cleaning of the spout 33 can be easily performed.

By the way, as can be seen from the circuit diagram of FIG. 20, if the front cover 19 is attached to the front case 2 with the mounting case 33 removed from the front cover 19, the first safety switch 53 is closed. However, the high voltage generator 80 does not operate, but the second safety switch 83 is closed by the operating piece 82, so that the fan 8 can be rotated by the electric motor 6. That is, although the ion wind type air cleaning means cannot be operated, the fan type air cleaning means can be operated to perform the fan operation.

Therefore, forgetting to attach the mounting case 33,
Alternatively, even if the discharge wire 31 is broken or lost and the mounting case 33 cannot be mounted, the air can be cleaned by operating the fan-type air purification means at a minimum.

In the above embodiment, the air purifier having the ionic wind type air purifying means and the fan type air purifying means and capable of selecting both of them has been described, but the ionic wind generating means only charges the dust in the outside air. It may be one that acts in. In this case, the charged dust is captured by the dust collecting portion of the fan-type air purification means. Further, although the dust collecting portion in the ion wind type air purifying means and the dust collecting portion in the fan type air purifying means are different, they can be made common. In any case, even if the ion wind generating means becomes inoperable, the fan type air cleaning means can be operated.

[0050]

According to the present invention, the discharge electrode (the discharge line in the embodiment) of the ion wind generating means is lost or malfunctions due to repeated maintenance, and is placed at a predetermined position in the main body. Even when it cannot be mounted, the air can be purified by operating the fan-type air purification means at a minimum, and the commercial value can be increased.

If the ion wind generating means is used as a constituent element of the ion wind type air purifying means and the fan type air purifying means and the ion wind type air purifying means can be selectively operated, the degree of air pollution and the room. It is possible to perform an air purifying action suitable for the surrounding environment such as the size or the temperature.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an entire air cleaner of the present invention.

FIG. 2 is a transverse cross-sectional view showing the entire air cleaner.

FIG. 3 is a front view showing the entire air cleaner.

FIG. 4 is a right side view of the entire air purifier.

FIG. 5 is a plan view of the entire air purifier.

FIG. 6 is a vertical cross-sectional view showing a mounting case to which a discharge wire of the air purifier is attached.

FIG. 7 is an exploded vertical sectional view of an upper part of a mounting case and a terminal plate of the air purifier.

FIG. 8 is an exploded vertical sectional view of a lower portion of a mounting case and a reinforcing plate of the air purifier.

FIG. 9 is an exploded perspective view of an upper part of a mounting case and a terminal plate of the air purifier.

FIG. 10 is an exploded perspective view of a lower portion of a mounting case and a reinforcing plate of the air purifier.

FIG. 11 is an enlarged vertical sectional view showing a state where the upper part of the mounting case of the air purifier is mounted.

FIG. 12 is an enlarged vertical sectional view showing a state where the lower part of the mounting case of the air purifier is mounted.

FIG. 13 is a rear view showing the pre-filter on the back side of the front cover of the air purifier with a broken line.

FIG. 14 is a front view of the main body case of the air purifier with the front cover removed.

FIG. 15 is a sectional view taken along the line AA of FIG. 14 when the front cover is attached.

16 is a sectional view based on the line BB of FIG. 14 when the front cover is attached.

FIG. 17 is an enlarged cross-sectional view showing the relationship between the prefilter mounted on the front cover and the mounting case.

FIG. 18 is an enlarged cross-sectional view showing a state in which the pre-filter having the same relationship is removed.

19 is a sectional view based on the line AA of FIG.

FIG. 20 is an electric circuit diagram of the air purifier of the present invention.

FIG. 21 is a cross-sectional view showing a state of discharge of the discharge line and the counter electrode of the air cleaner.

22 is a sectional view showing a mounting portion of the front cover on the front case, which is based on the line AA of FIG. 3. FIG.

23 is an enlarged view in a circle C of FIG. 14 showing how dust collecting paper is attached to the air cleaner of the present invention.

[Explanation of symbols]

1 body case 19 Front cover (cover) 31 Discharge line (discharge electrode) 32 Counter electrode 20 First intake hole 74 Dust collection paper (first dust collection part) 72 First exhaust hole 8 fans 6 electric motor 33 Mounting case 80 High voltage generator 53 1st safety switch 12 Second dust collector 83 Second safety switch 73 Second intake hole 11 Second exhaust hole

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-9-262501 (JP, A) JP-A-9-234391 (JP, A) JP-A-10-94739 (JP, A) JP-A-10- 99720 (JP, A) (58) Fields surveyed (Int.Cl. ⁷ , DB name) B03C 3/00-3/88

Claims (4)

(57) [Claims] 1. An ionic wind that applies a high voltage between a discharge electrode and a counter electrode provided inside a main body to generate a discharge, and generates an ionic wind by this discharge to charge dust in the sucked outside air. A generating unit, a first dust collecting unit for removing dust in the charged outside air, and a fan for sucking the outside air by rotating a fan provided in the main body, removing the dust at the second dust collecting unit , and then exhausting the dust. And a safety switch that detachably mounts the discharge electrode to the main body and that stops the operation of the high voltage generator that generates the high voltage by removing the discharge electrode from the main body. An air purifier that is provided and can energize the electric motor that rotates the fan even when the high voltage generator is stopped by the safety switch. 2. A ion wind air purifying unit for exhaust after removal of dust by the first dust collecting section by sucking outside air based on the ion wind generated by the ion wind generator, the rotation of the fan 2. The air according to claim 1, further comprising: a fan type air purifying unit that sucks outside air, removes dust in the second dust collecting unit, and then exhausts the air. The both air purifying units can be selectively operated. Cleaner. One and the second dust collecting portion and wherein the first dust collecting portion
The air cleaner according to claim 1 or 2, wherein the air cleaner is configured by the common member . 4. A cover in which the discharge electrode is detachably attached to a main body case.
Attached to the bar, with the discharge electrode removed from the cover,
By attaching this cover to the main body case,
The first safety switch inserted in the energizing path of the voltage generator
The second safety switch is closed when the second safety switch is opened.
The electric motor is energized through all switches.
An air purifier according to claim 3 .