JP2008253433A - Electric vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric vacuum cleaner which maintains a function for generating negative ions over a long period of time. <P>SOLUTION: This electric vacuum cleaner is equipped with a vacuum cleaner main body 10, an electric blower 11, an air discharging section 36, and an ion generating section 30. The vacuum cleaner main body 10 has a dust collecting chamber 13 on the front side, and an electric blower chamber 12 on the rear side. The electric blower 11 is arranged in the electric blower chamber 12, and generates a wind for sucking the air in the dust collecting chamber 13. The air discharging section 36 is installed on the rear side surface of the vacuum cleaner main body 10, and discharges the air, which has been discharged from the electric blower 11 to the electric blower chamber 12, to the atmosphere. The ion generating section 30 is installed in an exhaust passage which communicates with the air discharging section 36. A high voltage circuit 33 which operates the ion generating section 30 is arranged under and behind the electric blower 11 in the electric blower chamber 12. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner having an ion generator that generates ions.

  A conventional vacuum cleaner of this kind is generally as described in Patent Document 1. This type of vacuum cleaner will be described with reference to FIG.

In FIG. 5, reference numeral 1 denotes an ion generating unit that has an ion generating electrode 2 and generates ions. The ion generating electrode 2 is connected to a high voltage circuit 4 that generates a high voltage of about minus 7.5 kV by a high voltage electric wire 3. The high-voltage circuit 4 is provided above the cleaner body 5 and above the electric blower 6 that generates suction air. An ion emission part 7 and an exhaust part 8 are provided behind the cleaner body 5, and most of the exhaust air from the electric blower 6 (A in FIG. 5) is released from the exhaust part 8 to the atmosphere. Part of the exhaust air from the electric blower 6 (B in FIG. 5) passes through the inside of the ion generator 1, and negative ions are discharged from the ion discharge port 7 to the outside air together with the exhaust air. .
JP 2004-33454 A

  However, when the high-voltage circuit 4 is arranged at the position as described above, the heat generated by the electric blower 6 increases the ambient temperature of the high-voltage circuit 4 arranged above, and the components constituting the high-voltage circuit 4 by the heat, particularly the semiconductor. There was a risk of degrading or damaging the device. For this reason, the ion generator 1 cannot be operated stably.

  The present invention solves the above-described conventional problems, and an object thereof is to provide a vacuum cleaner that stably generates ions over a long period of time without damaging a high-voltage circuit for generating ions. To do.

  In order to solve the above-described conventional problems, the present invention includes a dust collection chamber in the front, an electric blower that emits suction air in the rear, and an exhaust unit that discharges exhaust from the electric blower to the atmosphere. The vacuum cleaner is a vacuum cleaner in which a high-pressure circuit for operating the ion generating unit is disposed in an exhaust passage communicating with the exhaust unit, and the high-pressure circuit is cooled by exhaust air from the electric blower. Can be prevented.

  Since the vacuum cleaner of this invention cools a high voltage circuit with the exhaust air from an electric blower, it can suppress the failure of the high voltage circuit of an ion generation part, and can maintain original performance over a long period of time. Further, by disposing the high-pressure circuit in the exhaust passage, it is possible to effectively use the internal space and reduce the size of the cleaner body.

  A first invention includes a dust collection chamber in the front, an electric blower that emits suction air in the rear, and an exhaust part that discharges exhaust from the electric blower to the atmosphere, and the exhaust from the electric blower communicates with the exhaust part. This is a vacuum cleaner in which a high-pressure circuit for operating the ion generator is arranged in the exhaust passage.

  As a result, the vacuum cleaner of the present invention cools the high-pressure circuit with the exhaust air from the electric blower, prevents a failure of the high-pressure circuit due to temperature rise, and has an initial function of generating negative ions over a long period of time. Can be maintained. Further, by disposing the high-pressure circuit in the exhaust passage, it is possible to effectively use the internal space and reduce the size of the cleaner body.

  According to a second aspect of the present invention, there is provided a vacuum cleaner body having a dust collection chamber in the front and an electric blower chamber in the rear, an electric blower that is arranged in the electric blower chamber and emits air that sucks air in the dust collection chamber, and the cleaning An exhaust part that is provided on the rear surface of the machine body and discharges air discharged from the electric blower into the electric blower chamber to the atmosphere, and an ion generation part that is provided in an exhaust passage that communicates with the exhaust part. A high-pressure circuit that operates the generating unit is a vacuum cleaner that is arranged in a lower rear portion of the electric blower in the electric blower chamber, and the heat generated by the electric blower is radiated by the exhaust air, Since the heat generation temperature of the electric blower is dissipated while being transmitted from the lower portion to the upper portion, the exhaust air flowing through the lower rear portion of the electric blower has a lower temperature than the exhaust air flowing through other portions. Therefore, the high-pressure circuit arranged in the lower rear part of the electric blower is cooled by the exhaust air having a low temperature and can operate in a relatively low ambient temperature, so that the ion generating part can be stably maintained over a long period of time. It can be operated. Further, by disposing the high-pressure circuit in the exhaust passage, it is possible to effectively use the internal space and reduce the size of the cleaner body.

(Embodiment 1)
The vacuum cleaner carrying the ion generating part in the 1st Embodiment of this invention is demonstrated using FIGS. 1-4.

  FIG. 1 is an overall perspective view of the vacuum cleaner in the present embodiment, and FIG. 2 is a cross-sectional view of the vacuum cleaner. FIG. 3 is a partial cross-sectional view of the electric vacuum cleaner, and FIG. 4 is a perspective view showing an ion generator.

  1 and 2, the vacuum cleaner main body 10 is provided with an electric blower chamber 12 having a built-in electric blower 11 at the rear, a dust collection chamber 14 at the front, and is removable in the dust collection chamber 14. A dust collection bag 13 for collecting dust is stored. A pair of traveling wheels 15 are rotatably attached to both sides of the lower rear portion of the cleaner body 10, and a traveling caster 16 is similarly attached to the bottom front portion. At the front portion of the cleaner body 10, a hose insertion port 19 to which a connection pipe 18 provided at one end of the hose 17 is detachably connected is provided.

  The other end of the hose 17 is provided with a tip pipe 21 having a handle 20 that is gripped during cleaning. The extension tube 22 is configured to be stretchable or splicable, and its downstream end is detachably connected to the tip pipe 21, and the upstream end incorporates a dust brush (not shown). The suction tool 23 is detachably connected.

  2 and 3, the outer body of the cleaner body 10 is composed of a lower body 10 a and an upper body 10 b, and configures an electric blower chamber 12 for housing the electric blower 11 behind the cleaner body 10. .

  The electric blower 11 is supported by a support mae 24 made of an elastic body at the front and supported by a support bobbin 25 made of an elastic material at the rear, and is housed in the electric blower chamber 12. The partition wall 26 divides the electric blower chamber 12 and the dust collecting chamber 14, and a lattice-shaped partition opening portion 28 that communicates with the suction opening 27 of the electric blower 11 is provided at substantially the center of the partition wall 26. 28 is covered with a primary filter 29 from the dust collection chamber 14 side.

  3 and 4, reference numeral 30 denotes an ion generator that generates negative ions. The ion generator 30 includes an ion generator main body 30 a that stores the ion generation electrode 31 and a cover in which opening holes are formed in a lattice shape. 30b. Reference numeral 32 denotes a high-voltage electric wire connected to the ion generation electrode 31. The ion generation electrode 31 is fixed to the ion generation unit main body 30a with a screw or the like.

  The other end of the high-voltage wire 32 is connected to a high-voltage circuit 33 that generates a high voltage of about minus 7.5 kV.

  As the high voltage circuit 33 operates, negative ions are emitted from the tip of the ion generating electrode 31 by corona discharge.

  Moreover, in FIG. 3, the ion generation part 30 is arrange | positioned by the upper body 10b upper back of the cleaner body 10, and 34 is an ion discharge port which discharge | releases a negative ion.

  In FIG. 3, at the start of use of the electric vacuum cleaner, the suction air from the electric blower 11 flows into the suction opening 27 of the electric blower 11 through the primary filter 29, and the air that has passed through the electric blower 11 flows from the rear part of the electric blower 11. The exhaust air discharged and discharged from the electric blower 11 flows through the electric blower chamber 12.

  As shown by an arrow A, most of the exhaust air is discharged from the exhaust part 36 to the outside through the secondary filter 35 disposed behind the cleaner body 10.

  Most of the exhaust discharged from the rear of the electric blower 11 (arrow A in FIG. 3) is exhausted from the rear of the electric blower 11, that is, from the exhaust part 36 provided on the rear side surface of the cleaner body. A high pressure circuit 33 is disposed in an exhaust passage 37 serving as a simple exhaust passage. If the arrangement of the high voltage circuit 33 is arranged at the lower rear part of the electric blower 11, the high pressure circuit 33 can be cooled by the lowest temperature of the exhaust from the electric blower 11.

  A part of the exhaust air is exhausted from the ion emission port 34 via the ion generation unit 30 as indicated by an arrow B, and the negative ions generated from the ion generation unit 30 are diffused into the cleaning room. To do.

  Negative ions have a deodorizing effect and antibacterial effect. In addition, when positively charged fine dust is exposed to negative ions, dust separation is improved, and fine dust scattered in the air is lowered to the floor surface. The effect of facilitating the collection of fine dust in the air can also be expected.

  With the above configuration, the high-pressure circuit 33 of the ion generating unit 30 that generates negative ions is cooled by the exhaust air from the electric blower 11 and can suppress a rise in temperature. To prevent. As a result, the generation of negative ions is not hindered, and the original performance can be maintained for a long time.

  Further, since the high-pressure circuit 33 is disposed at the lower rear part of the electric blower chamber 12, it is possible to reduce the size of the vacuum cleaner body 10 by effectively utilizing the space corresponding to the size of the high-pressure circuit 33.

  As described above, the present invention can be applied to a vacuum cleaner having a function of stably generating and releasing negative ions.

Whole perspective view of the vacuum cleaner in embodiment of this invention Cross section of the vacuum cleaner Partial sectional view of the vacuum cleaner Perspective view showing the ion generator Sectional view of the main part of a conventional vacuum cleaner body

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vacuum cleaner main body 11 Electric blower 12 Electric blower chamber 14 Dust collection chamber 30 Ion generation part 33 High voltage circuit 36 Exhaust part 37 Exhaust passage

Claims (2)

Ion generation in an exhaust passage that includes a dust collection chamber in the front, an electric blower that emits suction air in the rear, and an exhaust part that discharges exhaust from the electric blower to the atmosphere, and the exhaust from the electric blower communicates with the exhaust part Vacuum cleaner with a high-voltage circuit that operates the unit. A vacuum cleaner body having a dust collection chamber in the front and an electric blower chamber in the rear, an electric blower that is arranged in the electric blower chamber and emits wind for sucking air in the dust collection chamber, and a rear surface of the vacuum cleaner body A high-pressure unit that operates the ion generation unit, including an exhaust unit that discharges air discharged from the electric blower to the electric blower chamber to the atmosphere, and an ion generation unit provided in an exhaust passage that communicates with the exhaust unit. An electric vacuum cleaner characterized in that a circuit is disposed in a lower rear portion of the electric blower in the electric blower chamber.

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