JP4978740B1 - Electric vacuum cleaner - Google Patents

Abstract

【Task】 A vacuum cleaner that can reliably deliver ions to the dust and air channel walls targeted for static elimination and aggregation.I will provide a.
SOLUTION: A blower 16 for generating suction air, a housing 10 incorporating the blower 16, a suction port body 9 for sucking dust-containing air by suction air, and dust collection for collecting dust from the dust-containing air. Unit 20, an ion generating means 38 for generating ions, and a case body 37 storing the ion generating means 38. The ion generating means 38 has a needle-like electrode 38c that discharges when a voltage is applied, The case body 37 is provided on the base side of the electrode 38c, and is provided on the leading end side of the intake port 37c for taking in air and the electrode 38c.38And an emission port 37d for emitting the generated ions.
[Selection] Figure 13

Description

  The present invention relates to a vacuum cleaner.

  In an electric vacuum cleaner, garbage and an air passage in the vacuum cleaner come into contact with each other. At this time, the dust is charged to at least one of positive and negative due to the position of the dust and the air passage wall surface on the charging column. The charged dust adheres to the inner surface of the dust collecting part by electric force when it is collected by the dust collecting part. For this reason, when throwing away garbage from a dust collection part, the sliding property of garbage worsens.

  On the other hand, the vacuum cleaner which discharge | releases ion in a dust collection part is proposed. According to this vacuum cleaner, it is possible to neutralize dust and air passage wall surfaces (see, for example, Patent Document 1).

  In addition, a device that emits ions upstream of the dust collection unit has been proposed. According to this device, the dust is pre-aggregated by ions. Aggregated garbage is collected in the dust collecting section. Thereby, the dust collection efficiency of a dust collection part can be improved (for example, refer patent document 2).

JP 2011-015881 A JP-T 59-502059

  However, in Patent Document 1 and Patent Document 2, ions can disappear along a route. In this case, the ions do not reach the garbage and the air channel wall sufficiently. That is, the effect of static elimination or aggregation is not sufficient.

  This invention was made in order to solve the above-mentioned subject, The objective is providing the vacuum cleaner which can deliver ion reliably to the garbage and air channel wall surface which are the object of static elimination or aggregation. That is.

A blower that generates suction air, a housing that contains the blower, a suction port that sucks in dust-containing air by the suction air, a dust collection unit that collects dust from the dust-containing air, and ions. An ion generating means for generating, and a case body storing the ion generating means, wherein the ion generating means includes a rectangular tube-shaped frame in which one of the outer surfaces is in close contact with one surface of the case body, and a thickness direction. A plate-like support that is close to the inner surface of the frame that is in close contact with the case body, and the shaft is supported by the support so that the axis passes through a plane in the center of the thickness direction of the support, A needle-like electrode that discharges when a voltage is applied; the case body is provided on a base side of the electrode; an intake port for taking in air; and a tip end side of the electrode; Means to release the ions produced And the intake opening and the discharge opening face each other so that the plane connecting the intake opening and the discharge opening is parallel to the extending direction of the electrode. .

  According to this invention, it is possible to reliably deliver ions to the dust or wind path wall surface that is subject to charge removal or aggregation.

It is a perspective view of the electric vacuum cleaner in Embodiment 1 of this invention. It is a perspective view of the main body of the vacuum cleaner in Embodiment 1 of this invention. It is a top view of the main body of the vacuum cleaner in Embodiment 1 of this invention. It is a side view of the main body of the vacuum cleaner in Embodiment 1 of this invention. It is sectional drawing in the AA of FIG. It is sectional drawing in the BB line of FIG. It is a longitudinal cross-sectional view of the dust collection part of the vacuum cleaner in Embodiment 1 of this invention. It is sectional drawing in the CC line of FIG. It is sectional drawing in the DD line | wire of FIG. It is sectional drawing in the EE line | wire of FIG. It is a top view of the main body housing | casing of the vacuum cleaner in Embodiment 1 of this invention. It is a top view which shows the state which removed the upper housing | casing from FIG. It is sectional drawing in the FF line of FIG. It is sectional drawing in the GG line of FIG. It is a perspective view of the ion production | generation means of the vacuum cleaner in Embodiment 1 of this invention. It is a perspective view of the ion production | generation means of the vacuum cleaner in Embodiment 2 of this invention. It is a perspective view of the ion production | generation means of the vacuum cleaner in Embodiment 3 of this invention.

  A mode for carrying out the invention will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

Embodiment 1 FIG.
First, the outline | summary of a vacuum cleaner is demonstrated using FIG.
FIG. 1 is a perspective view of the electric vacuum cleaner according to Embodiment 1 of the present invention.

  In FIG. 1, reference numeral 1 denotes a cyclone vacuum cleaner body. Wheels 2 are provided on both sides of the rear portion of the vacuum cleaner body 1. A cord reel portion (not shown) is provided at the rear portion of the cleaner body 1. A power cord 3 is wound around the cord reel portion.

  One end of a suction hose 4 is connected to the front portion of the cleaner body 1. The suction hose 4 is formed in a bellows shape so as to have flexibility. One end of the connection pipe 5 is connected to the other end of the suction hose 4. The connection pipe 5 is formed to be bent slightly in the middle. The connection pipe 5 is provided with a handle 6. The handle 6 is provided with an operation switch 7. One end of the suction pipe 8 is connected to the other end of the connection pipe 5. The suction pipe 8 is formed straight in a cylindrical shape. A suction port body 9 is connected to the other end of the suction pipe 8.

Next, the cleaner body 1 will be described with reference to FIGS.
FIG. 2 is a perspective view of the main body of the electric vacuum cleaner according to Embodiment 1 of the present invention. FIG. 3 is a plan view of the main body of the electric vacuum cleaner according to Embodiment 1 of the present invention. FIG. 4 is a side view of the main body of the electric vacuum cleaner according to Embodiment 1 of the present invention. FIG. 5 is a cross-sectional view taken along line AA in FIG. 6 is a cross-sectional view taken along line BB in FIG.

  As shown in FIG. 2, a main body housing 10 is disposed at the lower part of the cleaner body 1. The main body housing 10 includes a lower housing 10a and an upper housing 10b. The lower housing 10 a is disposed at the lower part of the main body housing 10. The upper housing 10 b is disposed on the upper part of the main body housing 10.

  As shown in FIG. 2, a suction port 11 is formed in the front portion of the main body housing 10. As shown in FIGS. 2 to 4, a suction air passage 12 is provided on one side of the main body housing 10. As shown in FIG. 3, an exhaust port 13 is provided on the other side of the main body housing 10.

  As shown in FIGS. 5 and 6, a space is formed between the lower housing 10a and the upper housing 10b. As shown in FIG. 6, a discharge air passage 14 is formed in the upper rear part on the other side of the main body housing 10. An intake filter 15 is disposed below the exhaust air passage 14. An electric blower 16 is disposed below the intake filter 15. An exhaust filter 17 is disposed in front of the electric blower 16. An exhaust space 18 is formed in front of the exhaust filter 17. A power supply board 19 is provided below the exhaust space 18.

  As shown in FIG. 2, a dust collection unit 20 is provided on the upper portion of the cleaner body 1. The dust collection unit 20 is detachably attached to the upper part of the main body housing 10. For example, as shown in FIGS. 2 and 5, a primary cyclone separator 20 a is provided on one side of the dust collecting unit 20. For example, as shown in FIGS. 2 and 6, a secondary cyclone separator 20 b is provided on the other side of the dust collecting unit 20.

  Next, the dust collection unit 20 will be described more specifically with reference to FIGS.

  FIG. 7 is a longitudinal sectional view of the dust collecting portion of the electric vacuum cleaner according to Embodiment 1 of the present invention. 8 is a cross-sectional view taken along the line CC of FIG. 9 is a cross-sectional view taken along the line DD of FIG. 10 is a cross-sectional view taken along line EE in FIG.

  As shown in FIG. 7, a primary inlet 21 is formed on the outer surface of the primary cyclone separator 20a. As shown in FIG. 8, the tangent side of the primary cylindrical portion 22 a of the primary swirl chamber 22 is connected to the primary inlet 21. As shown in FIG. 7, a primary conical portion 22b is connected to the lower side of the primary cylindrical portion 22a. A primary opening 23 is formed below the primary cone portion 22b. A primary dust collection chamber 24 is formed around the primary cone portion 22b.

  As shown in FIG. 7, a primary discharge port 25 is formed in the center of the primary cylindrical portion 22a. Below the primary outlet 25 is a cone 25a. Above the primary discharge port 25 is a cylindrical body 25b. A primary discharge pipe 26 is connected above the cylindrical body 25b.

  As shown in FIG. 7, the secondary inflow port 27 is formed in the upper part of the secondary cyclone separator 20b. As shown in FIG. 9, the secondary inlet 27 is connected to the primary discharge pipe 26. A tangential direction of the secondary cylindrical portion 28 a of the secondary swirl chamber 28 is connected to the secondary inlet 27. As shown in FIG. 7, the secondary cone part 28b is connected below the secondary cylindrical part 28a. A secondary opening 29 is formed below the secondary cone portion 28b. A secondary dust collection chamber 30 is connected below the secondary opening 29. A zero-order dust collection chamber 31 is formed around the secondary cone portion 28b.

  As shown in FIG. 7, a secondary discharge port 32 is formed at the center of the secondary cylindrical portion 28a. A secondary discharge pipe 33 is connected above the secondary discharge port 32.

  As shown in FIG. 7, the primary cyclone separator 20a and the secondary cyclone separator 20b are separated by a partition wall 34 or the like. However, as shown in FIG. 10, a zero-order opening 35 is formed between the primary cylindrical portion 22 a and the zero-order dust collection chamber 31. As shown in FIG. 7, a communication portion 36 is formed between the primary dust collection chamber 24 and the zero-order dust collection chamber 31.

Next, the flow of the dust-containing air when the cleaner body 1 sucks dust will be described with reference to FIG.
The cleaner body 1 is energized by connecting the power cord 3 to an external power source. When the operation switch 7 is operated in this state, the electric blower 16 (not shown in FIG. 1) generates a predetermined suction air. With this suction air, the suction port body 9 sucks dust on the floor and surrounding air as dust-containing air.

  The dust-containing air flows into the cleaner body 1 through the suction pipe 8, the connection pipe 5, and the suction hose 4. That is, the suction port body 9, the suction pipe 8, the connection pipe 5, and the suction hose 4 are part of a path for allowing dust-containing air to flow into the cleaner body 1.

Next, the flow of dust-containing air from the main body housing 10 to the dust collecting unit 20 will be described with reference to FIG.
FIG. 11 is a plan view of the main body housing of the electric vacuum cleaner according to Embodiment 1 of the present invention.
As shown in FIG. 11, in the main body housing 10, the dust-containing air passes through the suction port 11 and the suction air passage 12, and the primary cyclone separator 20 a (not shown in FIG. 11). ).

Next, operation | movement at the time of the dust collection part 20 collecting garbage is demonstrated using FIG.
The dust-containing air that has reached from the main body housing 10 swirls in the primary swirl chamber 22. By this swirling, dust is centrifuged from the dust-containing air. The garbage is collected in the zero-order dust collection chamber 31 or the primary dust collection chamber 24.

  The dust-containing air separated from the dust reaches the secondary inlet 27 via the primary outlet 25 and the primary outlet pipe 26. The dust-containing air swirls in the secondary swirl chamber 28. By this turning, fine dust is centrifuged from the dust-containing air. The fine dust is collected in the secondary dust collection chamber 30. The air separated from the fine dust is discharged to the main body housing 10 (not shown in FIG. 7) through the secondary discharge port 32 and the secondary discharge pipe 33.

Next, the flow of air discharged from the main body housing 10 will be described with reference to FIG.
The air discharged from the dust collection unit 20 reaches the discharge air passage 14. The air passes through the intake filter 15 and the electric blower 16. At this time, the coil portion generates heat due to a current flowing in a coil portion (not shown) of the electric blower 16. Due to this heat generation, the temperature of the air rises. The air whose temperature has risen is exhausted to the outside of the main body housing 10 through the exhaust filter 17, the exhaust space 18, and the exhaust port 13 in this order.

Next, a structure for releasing ions to the suction air passage 12 will be described with reference to FIGS.
FIG. 12 is a plan view showing a state where the upper housing is removed from FIG. 13 is a cross-sectional view taken along line FF in FIG. 14 is a cross-sectional view taken along line GG in FIG. FIG. 15 is a perspective view of the ion generating means of the electric vacuum cleaner according to Embodiment 1 of the present invention.

  As shown in FIG. 12, a case body 37 is provided in front of the main body housing 10 in the vicinity of the upper portion of the suction air passage 12. As shown in FIGS. 13 and 14, the case body 37 includes an upper case 37a and a lower case 37b. An intake port 37c is provided in the upper part of the upper case 37a. A discharge port 37d is provided at the lower portion of the lower case 37b. As shown in FIG. 13, at least a part of the case body 37 is exposed to the exhaust space 18.

  As shown in FIGS. 13 and 14, an ion generating means 38 is provided between the upper case 37a and the lower case 37b. The ion generating means 38 includes a frame 38a, a support 38b, and a discharge electrode 38c.

  As shown in FIG. 15, the frame 38a is formed in a rectangular tube shape. The support 38b is formed in a plate shape. The support 38b is fixed to one surface in the frame 38a. The discharge electrode 38c is formed in a needle shape. The discharge electrode 38c is supported on one edge of the support 38b. At this time, the center plane in the thickness direction of the support 38b passes through the axis of the discharge electrode 38c.

  In the present embodiment, as shown in FIGS. 13 and 14, the ion generating means is such that the plane connecting the intake port 37c and the discharge port 37d and the extending direction of the discharge electrode 38c are substantially parallel to each other. 38 is arranged close to the power supply substrate 19 (not shown in FIGS. 13 and 14). Specifically, the root side of the discharge electrode 38c is disposed on the intake port 37c side. On the other hand, the distal end side of the discharge electrode 38c is disposed on the discharge port 37d side.

  In the ion generating means 38, when a high voltage is applied to the discharge electrode 38c, a discharge is generated from the tip of the discharge electrode 38c toward the atmosphere. This discharge generates a concentrated electric field.

  In the concentrated electric field, outer electrons are taken from air molecules. As a result, the air molecules become positive ions. On the other hand, the electrons detached from the air molecule are captured by another air molecule. As a result, another air molecule becomes a negative ion.

  When the voltage applied to the discharge electrode 38c is positive, positive ions are repelled by the discharge electrode 38c. As a result, positive ions are released into free space (space outside the concentrated electric field) as an ion wind so as to spread away from the tip of the discharge electrode 38c in the extending direction of the discharge electrode 38c. On the other hand, when the high voltage applied to the discharge electrode 38c is negative, negative ions are repelled by the discharge electrode 38c. As a result, negative ions are released into free space as an ion wind so as to spread away from the tip of the discharge electrode 38c in the extending direction of the discharge electrode 38c.

  On the other hand, the dust-containing air comes into contact with each inner wall surface when passing through the air passages such as the case body 37, the suction air passage 12, and the dust collecting portion 20. At this time, each inner wall surface is charged due to the position of the dust-containing air and each inner wall surface on the charging column. For example, when the inner wall surface is more positive than the dust-containing air in the charging train, the inner wall surface is positively charged. On the other hand, dust-containing air is negatively charged.

  Therefore, in the present embodiment, the inner wall surface of the case body 37, the inner wall surface of the suction air passage 12, and the inner wall surface of the dust collecting portion 20 are formed of a material that is on the ion side of the dust train with respect to the dust-containing air. Therefore, when the ions are positive ions, these inner wall surfaces are on the positive side with respect to the dust-containing air in the charging train. On the other hand, when the ions are negative ions, these inner wall surfaces are on the negative side of the dust-containing air in the charge train.

  As a result, these inner wall surfaces are charged with the same polarity as the ions. This charging can prevent ions from being adsorbed to the inner wall surface by electric force. That is, the efficiency of releasing ions into the suction air passage 12 is increased.

  According to the first embodiment described above, the inner wall surface of the case body 37, the inner wall surface of the suction air passage 12, and the inner wall surface of the dust collecting unit 20 are on the ion side in the charging column from the dust-containing air. For this reason, ion can be reliably delivered to garbage. As a result, it is possible to reliably aggregate the garbage.

  Note that at least one of the inner wall surface of the case body 37, the inner wall surface of the suction air passage 12, and the inner wall surface of the dust collecting unit 20 may be located on the ion side of the dust-containing air in the charging train. Furthermore, a part of each inner wall surface may be located on the ion side of the dust-containing air in the charging train. Also in this case, it is possible to prevent ions from being adsorbed to the portion by electric force.

  However, the inner wall surface to be neutralized should promote the adsorption of ions to the inner wall surface by electric force. For this reason, the inner wall surface should not be on the ion side of the dust-containing air in the charging train.

  Further, the inner wall surface of the suction air passage 12 may be located on the ion side of the dust collection unit 20 in the charging train. In this case, the suction air passage 12 is more strongly charged with the same polarity as the ions than the dust collection unit 20. As a result, electric lines of force having the same polarity as ions are formed from the suction air passage 12 toward the dust collection unit 20. For this reason, it becomes easy for ions to reach the dust collecting part 20 by electric force.

  Further, the inner wall surface of the case body 37 may be located on the ion side of the suction air passage 12 in the charging train. In this case, the case body 37 is more strongly charged with the same polarity as the ions than the suction air passage 12. As a result, electric lines of force having the same polarity as ions are formed from the case body 37 toward the suction air passage 12. For this reason, ions are easily released to the suction air passage 12 by electric force.

  Further, at least a part of the case body 37 is exposed in the exhaust space 18. For this reason, the inside of the case body 37 becomes high temperature. This activates the Brownian motion of ions. As a result, in the concentrated electric field, the ionized air tends to drift near the discharge electrode 38c. For this reason, the ions easily receive the repulsive force of the discharge electrode 38c. As a result, ions are easily released into free space.

  Furthermore, the Brownian motion of the released ions becomes active. As a result, ions are efficiently discharged into the suction air passage 12 through the discharge port 37d. For this reason, the ions easily reach the inner wall surfaces of the dust, the suction air passage 12, the dust collecting unit 20, and the like. As a result, neutralization and aggregation of the target can be performed efficiently.

  Further, due to the temperature rise of the case body 37, the movement of electric charges inside the case body 37 and the movement of electric charges when the inner wall surface of the case body 37 is in contact with air become active. As a result, charging of the inner wall surface of the case body 37 is promoted. For this reason, ions are more efficiently released by the suction air passage 12 by electric force.

  Further, the heat of the exhaust from the electric blower 16 is used to increase the temperature of the case body 37. That is, it is not necessary to provide a separate heating source. For this reason, the structure can be simplified and the cost can be reduced.

  Further, the ion generating means 38 is provided close to the power supply substrate 19. For this reason, it is possible to simplify the routing of the power supply line to the ion generating means 38.

  The same effect can be obtained even if at least a part of the suction air passage 12 or the dust collecting portion 20 is exposed in the exhaust space 18.

  A part of the exhaust from the electric blower 16 is taken into the case body 37 through the intake port 37c. For this reason, the air temperature in the vicinity of the ion generating means 38 can be efficiently increased. Further, the case body 37 can be prevented from being filled with ionized air. For this reason, the ion emission efficiency can be further increased. Further, it is possible to suppress the adhesion of dust to the discharge electrode 38c. For this reason, the lifetime of these discharge electrodes 38c can be extended. At this time, the exhaust from the electric blower 16 is cleaned by the exhaust filter 17. For this reason, the ion production efficiency can be further increased.

  The suction port 11 is provided in front of the main body housing 10. The electric blower 16 is provided behind the main body housing 10. The electric blower 16 exhausts to the front of the main body housing 10. As a result, the ion generating means 38 can be provided close to the suction air passage 12. For this reason, it can prevent that ion lose | disappears in the path | route between the ion production | generation means 38 and the suction air path 12. FIG. Moreover, the vacuum cleaner main body 1 can be made small.

  In addition, the ion generation unit 38 releases ions upstream from the dust collection unit 20. For this reason, the dust collection part 20 can be neutralized, and the adhesion of the dust to the inner wall face of the dust collection part 20 can be suppressed. As a result, when the garbage is thrown away, the sliding property of the garbage can be improved. That is, the usability of the electric vacuum cleaner can be improved. In addition, it is possible to agglomerate the ions and the oppositely charged dust with an electric force. For this reason, the dust collection efficiency of the dust collection part 20 can be improved.

  The ions emitted from the ion generating means 38 may be ions having a charge opposite to that of dust. In this case, the dust aggregation effect is enhanced. For this reason, the dust collection performance in the dust collection part 20 can further be improved.

  Further, the plane connecting the intake port 37c and the discharge port 37d is substantially parallel to the extending direction of the discharge electrode 38c. Specifically, the root side of the discharge electrode 38c is disposed on the intake port 37c side. On the other hand, the distal end side of the discharge electrode 38c is disposed on the discharge port 37d side. For this reason, the air flow in the case body 37 approximately matches the extending direction of the discharge electrode 38c. Thereby, it can prevent that the flow of the air from the ion wind and the inlet 37c interferes. As a result, ions can be efficiently discharged into the suction air passage 12 by the synergistic effect of the ion wind and the air flow. That is, it is possible to prevent the ionized air from being filled in the case body 37 and to increase the ion emission efficiency.

  Furthermore, it is possible to prevent dust from adhering to the discharge electrode 38c due to the air flow from the intake port 37c. For this reason, it can prevent that the performance of the ion production | generation means 38 deteriorates. Moreover, it is possible to prevent the discharge electrode 38c from being damaged by flowing air along the discharge electrode 38c.

  Further, the plane in the center in the thickness direction of the support 38b passes through the axis of the discharge electrode 38c. For this reason, the support body 38b does not disturb the flow of air from the intake port 37c to the discharge port 37d. For this reason, ions can be efficiently discharged into the suction air passage 12.

Embodiment 2. FIG.
FIG. 16 is a perspective view of the ion generating means of the electric vacuum cleaner according to Embodiment 2 of the present invention. In addition, the same code | symbol is attached | subjected to Embodiment 1 and an equivalent part, and description is abbreviate | omitted.

  The ion generating means 38 of the second embodiment is obtained by adding a counter electrode 38d to the ion generating means 38 of the first embodiment. The counter electrode 38d is provided at a position spaced from the tip of the discharge electrode 38c in the extending direction of the discharge electrode 38c. Thereby, the discharge intensity from the tip of the discharge electrode 38c increases.

  According to the second embodiment described above, the counter electrode 38d is arranged at a distance from the tip of the discharge electrode 38c in the extending direction of the discharge electrode 38c. For this reason, the direction of the ion wind substantially coincides with the extending direction of the discharge electrode 38c. Thereby, it can prevent that the direction of an ion wind and the flow of the air from the intake port 37c interfere. As a result, ions can be efficiently discharged into the suction air passage 12 by the synergistic effect of the ion wind and the air flow. That is, it is possible to prevent the ionized air from being filled in the case body 37 and to increase the ion emission efficiency.

Embodiment 3 FIG.
FIG. 17 is a perspective view of the ion generating means of the electric vacuum cleaner according to Embodiment 3 of the present invention. In addition, the same code | symbol is attached | subjected to Embodiment 1 and an equivalent part, and description is abbreviate | omitted.

  The ion generating means 38 of the third embodiment is obtained by adding a counter electrode 38d to the ion generating means 38 of the first embodiment. The counter electrode 38d extends from both sides of the support 38b to the center of thickness of the support 38b from the support 38b. As a result, the counter electrode 38d is disposed on both sides of the discharge electrode 38c symmetrically with respect to the axis of the discharge electrode 38c.

  In the present embodiment, as shown in FIG. 17, the discharge is performed from the tip of the discharge electrode 38c toward the tip of both opposing electrodes 38d. In this case, the main direction of the ion wind is a direction obtained by vector addition of the discharge directions to the opposing electrodes 38d on both sides. That is, the main direction of the ion wind is the extending direction of the discharge electrode 38c.

  According to the third embodiment described above, the counter electrode 38d is disposed on both sides of the discharge electrode 38c. For this reason, the flow of air from the intake port 37c and the ion wind are not disturbed by the counter electrode 38d while increasing the discharge intensity. Thereby, ions can be efficiently discharged into the suction air passage 12. That is, it is possible to prevent the ionized air from being filled in the case body 37 and to increase the ion emission efficiency.

  In addition, in the vacuum cleaner of Embodiment 1-3 mentioned above, it was a cyclone type dust collection system. However, for example, the same effect as described above can also be achieved in a dust collection type vacuum cleaner such as a paper pack or a filter. Moreover, it is not necessary to limit a vacuum cleaner to the canister type thing of Embodiment 1-3.

  Further, the suction port body 9, the suction pipe 8, the connection pipe 5, the suction hose 4 and the like may be selected as the “suction air passage” for releasing ions. In this case, it is possible to prevent ions from being adsorbed to the inner wall surfaces of the suction port body 9, the suction pipe 8, the connection pipe 5, the suction hose 4, and the like by electric force.

  In the first to third embodiments, it is desirable not to disturb the ion release path by the seal structure and the lock structure between the components.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Wheel 3 Power supply cord 4 Suction hose 5 Connection pipe 6 Handle 7 Operation switch 8 Suction pipe 9 Suction port body 10 Main body housing 10a Lower housing 10b Upper housing 11 Suction port 12 Suction air passage 13 Exhaust port 14 Exhaust air passage 15 Intake filter 16 Electric blower 17 Exhaust filter 18 Exhaust space 19 Power supply board 20 Dust collector 20a Primary cyclone separator 20b Secondary cyclone separator 21 Primary inlet 22 Primary swirl chamber 22a Primary cylinder 22b Primary cone 23 Primary opening 24 Primary dust collection chamber 25 Primary discharge port 25a Cone 25b Cylinder 26 Primary discharge pipe 27 Secondary inlet 28 Secondary swirl chamber 28a Secondary cylinder 28b Secondary cone 29 Secondary opening 30 Secondary Dust collection chamber 31 Zero-order dust collection chamber 32 Secondary discharge port 33 Secondary discharge pipe 34 Partition 35 Zero-order opening 36 Communication portion 37 Case Body 37a upper case 37b lower case 37c intake port 37d discharge port 38 ion generating means 38a frame 38b support 38c discharge electrode 38d counter electrode

Claims (3)

A blower that generates suction air;
A housing containing the blower;
A suction port for sucking dust-containing air by the suction air;
A dust collecting unit for collecting dust from the dust-containing air;
Ion generating means for generating ions;
A case body storing the ion generating means;
With
The ion generating means includes
A rectangular tube-shaped frame in which one of the outer surfaces is closely attached to one surface of the case body;
A plate-like support that is close to the inner surface of the frame that is in close contact with the case body of the frame;
A needle-like electrode that is supported by the support so that the axis passes through the plane in the center of the thickness direction of the support, and discharges when a voltage is applied;
Have
The case body is
Provided on the base side of the electrode, and an intake for taking in air;
A discharge port provided on the tip side of the electrode for discharging ions generated by the ion generation means;
Have
The intake port and the discharge port are vacuum cleaners facing each other so that a plane connecting the intake port and the discharge port is parallel to an extending direction of the electrode. A counter electrode arranged at a distance from the tip of the electrode in the extending direction of the electrode,
The electric vacuum cleaner according to claim 1, further comprising: A counter electrode extending in the axial direction of the electrode from both sides of the support portion of the electrode in the support so as to be arranged on both sides of the electrode symmetrically with respect to the axis of the electrode;
The electric vacuum cleaner according to claim 1, further comprising:

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