JP2003325389A - Electric vacuum cleaner - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a vacuum cleaner having a simple configuration and low noise at low cost. SOLUTION: An electric blower 12 for generating a suction wind, an intake port 20 provided in front of the electric blower 12 and serving as an inlet of the suction wind to a cleaner main body 11, and attached to and detached from the rear of the electric blower 12 are provided. The cleaner body 11 is provided with a free dust collector 21, and an exhaust unit 26 is formed in the cleaner main body 11 to exhaust the exhaust air from the electric blower 12, and the exhaust unit 26 is covered by an outer shell 30 of the dust collector 21. Therefore, the exhaust air from the electric blower 12 is not directly discharged to the atmosphere, and the electric blower 12 which is a sound source is covered with the dust collecting portion, so that noise can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vacuum cleaner used in general households, and more particularly, to reduction of exhaust noise which exhibits a sound deadening effect.

[0002]

2. Description of the Related Art A conventional vacuum cleaner of this type is disclosed in Japanese Examined Patent Publication 62
Those described in Japanese Patent Laid-Open No. 15207 were common. This electric vacuum cleaner will be described with reference to FIG.

In FIG. 15, 1 is a cleaner body, 2 is an electric blower that emits suction air, which communicates with a suction tool (not shown) that sucks dust, and the electric blower 2 is the cleaner body. 1 is provided behind the cleaner body 1 and in front of the cleaner body 1, a dust collecting part 5 having a main filter 3 for collecting fine dust and a pre-filter 4 for collecting coarse dust.
Is provided. The dust collecting part 5 is the main body 1 of the cleaner.
It is configured to be detachable and communicates with the electric blower 2.

In front of the dust collecting section 5, there is provided an intake port 6 which communicates with the dust collecting section 5 and takes in dust to the cleaner body 1.

When the cleaner body 1 is operated, the air sucked by the suction tool (not shown) enters the dust collecting section 5 through the intake port 6 and prefilters for collecting coarse dust. 4 and the main filter 3 for collecting fine dust, and is guided to the suction passage 8 formed above the cleaner body 1 and communicated with the electric blower 2. Exhaust air from the electric blower 2 passes through a filter 9 provided in the rear of the cleaner body 1 near the electric blower 2 and is exhausted from an exhaust hole 10 provided in the rear of the cleaner body 1.

[0006]

However, in the structure of the conventional vacuum cleaner described above, exhaust air from the electric blower 2 is directly discharged to the atmosphere through the exhaust hole 10 provided at the rear of the cleaner body 1. Further, the direct communication between the electric blower 2 which is the sound source and the atmosphere has been a factor of noise increase.

In order to solve this, it is conceivable to increase the ventilation pressure loss of the filter 9, but the exhaust efficiency deteriorates and the dust collection performance of the vacuum cleaner is degraded, and the thickness of the filter 9 is reduced. If the size is increased, the vacuum cleaner body 1 may be increased in size.

An object of the present invention is to solve the above-mentioned problems, and an object thereof is to provide an electric vacuum cleaner which has a simple structure and is low in cost and quiet.

[0009]

In order to solve the above problems, the present invention provides an electric blower for emitting suction air and an inlet for the suction air provided in front of the electric blower to a cleaner body. An air intake port and a detachable dust collecting portion at the rear of the electric blower are provided, an exhaust portion for discharging exhaust air from the electric blower is formed in the cleaner body, and the exhaust portion is provided with the dust collecting portion. It is an electric vacuum cleaner covered with the outer shell of.

According to the above invention, the exhaust air from the electric blower is not directly discharged to the atmosphere, and the electric blower, which is the sound source, is covered by the dust collecting portion, so that noise can be reduced. You can Further, it is possible to reduce noise with a simple configuration without using a filter for suppressing the wind speed and the flow velocity. Further, the exhaust part does not directly touch the eyes of the user, and the appearance of the cleaner body is not impaired by the exhaust part.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention is
An electric blower that emits suction air, an intake port that is provided in front of the electric blower and that is an inlet port to the cleaner body of the suction air, and a detachable dust collecting portion behind the electric blower are provided. In the vacuum cleaner body, an exhaust portion for discharging exhaust air from the electric blower is formed in a cleaner body, and the exhaust portion is covered with an outer shell of the dust collecting portion.

According to the above invention, the exhaust air from the electric blower is not directly discharged to the atmosphere, and the electric blower, which is the sound source, is covered by the dust collecting portion, so that noise can be reduced. You can Further, it is possible to reduce noise with a simple configuration without using a filter for suppressing the wind speed and the flow velocity. Further, the exhaust part does not directly touch the eyes of the user, and the appearance of the cleaner body is not impaired by the exhaust part.

According to a second aspect of the present invention, the electric blower is mounted on a frame forming an outer casing of the cleaner body configured so that exhaust air discharged from the electric blower flows along the outer casing of the dust collecting portion. Forming an exhaust part where the exhaust air from
By covering the exhaust part with the outer part of the dust collecting part, the exhaust air from the electric blower is not directly discharged to the atmosphere,
Further, since the electric blower, which is the sound source, is covered with the dust collecting portion, noise can be reduced. Further, it is possible to reduce noise with a simple configuration without using a filter for suppressing the wind speed and the flow velocity.

According to the third aspect of the present invention, a cord reel chamber for accommodating the power cord is provided above or below the dust collecting portion, and exhaust air discharged from the electric blower passes through the cord reel chamber. With such a configuration, it is possible to improve the cooling effect of the cord.

According to a fourth aspect of the present invention, there is provided an electric blower housing for housing the electric blower, and the electric blower housing is provided with an exhaust filter through which exhaust air exhausted from the electric blower passes. Therefore, it becomes possible to improve the cleanliness of the exhaust gas without accumulating the dust in the exhaust passage by stopping the fine dust, carbon and the like discharged from the electric blower with the exhaust filter.

According to a fifth aspect of the present invention, the operation of the electric blower is controlled on the downstream side of the exhaust filter and the upstream side of the dust collecting section in the flow path of the exhaust air discharged from the electric blower. Since the control circuit is provided, the cooling effect of electronic components can be improved.

According to a sixth aspect of the present invention, a rotatable storage lid is provided above the exhaust filter, and the exhaust filter is detachable from the main body of the vacuum cleaner. Can be cleaned.

In the invention according to claim 7 of the present invention, the outer contour of the cleaner main body near the exhaust filter is made of a visible material, and the user can directly check the degree of contamination of the exhaust filter.

According to an eighth aspect of the present invention, an electric blower that emits suction air, an intake port that is an inlet port of the suction wind to the cleaner body in front of the electric blower, and a rear side of the electric blower. A detachable dust collecting portion is provided, and a suction passage that communicates the intake port and the dust collecting portion is arranged around the electric blower, because the suction passage is provided around the electric blower that is the sound source. The suction passage plays a role of preventing noise of the electric blower leaking from the cleaner body to the atmosphere, and the noise can be reduced.

[0020]

(Embodiment 1) A first embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a plan view of a cleaner body showing a first embodiment of the present invention, FIG. 2 is a partial sectional side view thereof, and FIG. 3 is a central sectional view of the cleaner body. Yes, Figure 4
FIG. 3 is a sectional view taken along line AA of FIG. 1. FIG. 5 is a horizontal sectional view including a suction passage of the cleaner body, and FIG. 6 is a partial sectional view of the rear side of the cleaner body. FIG. 7 is a horizontal cross-sectional view including the exhaust portion of the cleaner body. FIG. 8 is a vertical sectional view including an exhaust filter portion.

1 to 8, the cleaner body 11 has a built-in electric blower 12 that emits suction air, and is connected to a dust collecting hose 13 that sucks dust. This vacuum cleaner body 1
1 is a lower frame body 14, an upper frame body 15, and a cord reel cover 1
6 and the storage lid 17 form an outer shell. A support rubber 18 is supported above the electric blower 12, and the outer periphery and the rear are covered with an electric blower housing 19.
The electric blower 12 is supported by the electric blower housing 19. The electric blower 12 is disposed between the lower frame body 14 and the upper frame body 15, and the lower frame body 14 and the upper frame body 15 are fixed to each other in a spigot structure. The dust collecting hose 13 is configured to be attachable / detachable to and from the intake port 20 arranged in front of the electric blower 12 and in front of the cleaner body 11. Further, behind the electric blower 12, a substantially cylindrical dust collecting portion 21 for accumulating dust is arranged, and above the dust collecting portion 21, a cord reel chamber 23 accommodating a power cord 22 is arranged. It is set up. Although the cord reel chamber 23 is provided above the dust collecting portion 21 in this embodiment, it may be provided below the dust collecting portion 21.

An exhaust port 2 for passing exhaust gas from the electric blower 12 is provided in an electric blower housing 19 containing the electric blower 12.
4 is provided on the side surface side of the cleaner body 11. In addition, in the vicinity of the outer periphery of the dust collecting portion 21, the box-shaped rib 25 having upper and lower openings on the upper frame 15 behind the cleaner body 11 is provided.
The box-shaped rib 25 has a dust collecting portion 2
An exhaust portion 26 that exhausts the exhaust air from the electric blower 12 to the outside air is provided on the first side.

The operation and action of the above structure will be described.

5 to 7, the exhaust air from the electric blower 12 passes through the exhaust port 24 of the electric blower housing 19 located on the side surface side of the cleaner body 11, as shown by the arrow. The exhaust gas that has passed through the exhaust port 24 passes between the lower frame body 14 and the upper frame body 15, communicates between the box-shaped ribs 25 provided on the upper frame body 15 of the cleaner body 11, and the exhaust section 26. Emitted from. Therefore, the exhaust air from the electric blower 12 is not directly discharged to the outside air. In addition, the exhaust passage becomes longer, and noise can be reduced.

Further, in FIGS. 3, 4, and 8, the air sucked into the electric blower 12 is from the intake port 20 via the suction passage 27, behind the electric blower 12, and in the main body 12 of the cleaner. Cylindrical dust collecting portion 21 disposed behind
And a filter 28 provided in the dust collecting portion 21 to separate the dust and air.

The dust is accumulated on the lower surface of the dust collecting portion 21 by its own weight. Also, the air that has passed through the filter 28
It is connected to the electric blower 12 of the electric blower housing 19 via the communication passage 29. The suction passage 27 is arranged on the side surface of the electric blower 12, and the communication passage 29 is formed in the electric blower 12.
Is disposed above. With such a configuration, the suction passage 27 and the communication passage 29 are separated from each other, the passages do not overlap and the cleaner main body 11 does not become large, and space can be effectively used for downsizing. Becomes

In FIG. 3 and FIG. 6, since the exhaust part 26 for exhausting the exhaust air from the electric blower 12 to the outside air is provided above the dust collecting part 21, the exhaust part 26 is located above the floor surface and accumulates on the floor surface. You don't have to blow away trash and documents.

Further, since the exhaust portion 26 is constructed so as to be covered with the outer shell 30 of the substantially cylindrical dust collecting portion 21, the exhaust portion 26 is provided.
Is more blindfolded than the appearance, and does not spoil the appearance. Further, since the exhaust air blows on the outer shell 30 of the dust collecting portion 21 and flows along the outer shell 30 of the dust collecting portion 21, the wind speed and the flow velocity of the exhaust air can be reduced and the noise due to the exhaust air can be reduced. .

The cord reel chamber 2 above the dust collecting portion 21
3, a cord 22 having a cord winding device 31 is housed therein, and a cord reel chamber 23 has a cord reel cover 16 for covering the upper and side surfaces of the cord winding device 31 and a partition plate at the bottom of the cord reel chamber 23. It is covered with 32 and. A cord 22 is provided behind the cord reel cover 16.
A cord outlet portion 33 is provided for inserting and removing the cord.

The box-shaped rib 25 having an opening at the upper side of the upper frame 15 and the box-shaped wall 34 formed of the partition plate 32 are locked to each other in a spigot structure, and exhaust air is supplied to the cord reel chamber. It is formed so as to communicate with 23. With these configurations, the exhaust air from the electric blower 12 is
2 passes through the cord reel chamber 23 containing the cord 2 and is discharged from the cord outlet portion 33, so that it is possible to suppress the temperature rise of the cord 22 and exert the cooling effect.

(Second Embodiment) FIG. 9 is a partial cross-sectional view of a cleaner body according to a second embodiment of the present invention. FIG. 10 is a side sectional view showing the filter support. FIG. 11 is an operation diagram when the storage lid is opened, and FIG. 12 is a partial cross-sectional plan view of the cleaner body. FIG. 13 is an operation diagram when the filter support is attached to and detached from the cleaner body.

Example 2 is a detailed representation around the filter support from Example 1. The same reference numerals as those in the first embodiment have the same structure, and the description thereof will be omitted.

In FIGS. 9 and 13, a box-shaped wall 35 communicating with the exhaust port 24 is formed integrally with the electric blower housing body 19 in the electric blower housing body 19. The box-shaped wall 35 has an opening at the top, and the cleaner body 11
An exhaust hole 36 having an opening is also formed on the side surface side.
The box-shaped wall 35, the wall 37 of which the upper side is opened, is engaged and locked with the rib 39 of the opening 38 formed in the upper frame body 15 of the cleaner body 11 in a spigot shape. Also, wall 3
7 is configured so that the upper part is inclined forward.

Reference numeral 40 denotes a filter support body having a built-in exhaust filter 41, which is formed of a substantially U-shaped box body, and the exhaust filter 41 is inserted into a hole 42 provided on the side surface as shown in FIG. It is configured to be removable by press fitting. The filter support 40 is inserted into the opening 38 formed in the upper frame 15 of the cleaner body 11, and is supported by the box-shaped wall 35 integrally formed with the electric blower housing 19 and the box-shaped wall 35. It is detachably configured by press-fitting the inner wall of the filter and the outer wall of the filter support 40.

Next, the operation and action will be described. Fine dust, carbon and the like discharged from the electric blower 12 are stopped by the exhaust filter 41, which is locked in the electric blower housing 19 near the electric blower 12, It is possible to prevent dust from passing through the exhaust passage, prevent dust from accumulating in the exhaust passage, and improve the cleanliness of the exhaust.

Further, in FIGS. 9 and 10, a vibration isolator 45 having elasticity is provided between the lower surface 43 of the electric blower housing 19 and the bottom surface 44 of the lower frame body 14, so that the vacuum cleaner is temporarily operated. Even when the main body 11 is repeatedly dropped, it is possible to prevent the lower frame body 14 from being damaged by interfering the impact due to the own weight of the electric blower 12. Further, as a result, the vibration isolator 45 can prevent the vibration generated by the electric blower 12 and reduce the noise.

3, 5, and 9, a plurality of exhaust grids 42 formed on the filter support 40 through which exhaust air passes.
An electronic component 46 for controlling the electric blower 12 is disposed between A and the exhaust unit 26 that discharges exhaust air to the outside air. The electronic component 46 includes a lower frame body 14 and an upper frame that form an exhaust passage. It is fitted and locked to the body 15. From this, electronic component 4
The cooling effect of 6 can be improved. In addition, since the exhaust air passes through the exhaust filter 41, the degree of cleaning is good, and dust is not attached to the electronic component 46, and the reliability of the electronic component 46 is improved.

In addition, in FIG. 4, FIG. 10 and FIG. 11, the cleaner body 1 is located above the intake port 20 and the electric blower 12.
A recessed attachment storage portion 48 for storing the attachment 47 is provided in the upper frame 15 of the first frame 15. The attachment storage portion 48 and the storage lid 17 that covers the attachment 47 are disposed above the attachment 47. ing.

Similarly, the filter support 40 is also covered by the storage lid 17. As shown in FIG. 11, the storage lid 17 is rotatably supported by a rotation fulcrum 50 of a support body 49 formed at a substantially central portion of the cleaner body 11. As a result, when the storage lid 17 is closed in a normal use state, the filter support body 40 is blinded from the appearance, and the cleaner body 11 has a simple shape without spoiling the appearance of the cleaner body 11. can do.

Further, in the box-shaped wall 35 integrally formed with the electric blower storage body 19, the wall 37 having an upper opening is inclined forward and the filter support 40 is inclined forward. Is locked in. As shown in FIG. 11, when the storage lid 49 is opened, the filter support body 40 is easily seen by the user, and when the filter support body 40 is detached from the cleaner body 11, the arrow B direction (diagonal direction).
Since it moves to, it becomes difficult to interfere with the storage lid 49, and the detachability of the filter support 40 is improved.

Further, in FIGS. 9 and 13, on the cleaner body 11 side into which the filter support 40 is inserted, an oblique taper surface 51 is formed on the outer periphery of the end of the opening 38 formed in the upper frame 15. By forming it, the area of the opening 38 is increased, and the detachability of the filter support 40 can be further improved with a simple configuration.

12 and 13, a protrusion 52 is provided on the outer surface of the filter support 40, and an opening 38 formed in the upper frame 15 on the cleaner body 11 side at a position facing the protrusion 52. The recess 53 is formed in the filter support member 40.
When inserting the cleaner into the cleaner body 11, the convex portion 52 and the concave portion 53
Are fitted to each other.

With this structure, the positioning of the filter support 40 can be performed at a low cost, and the filter support 40 can be prevented from being erroneously assembled without being installed in the wrong direction.

Further, in FIG. 13, when the filter support 40 is attached to or detached from the cleaner body 11 by forming the inclined surface 54 at the end of the protrusion 52 of the filter support 40, the protrusion of the filter support 40 is removed. The part 52 relieves the possibility of being caught in the recess 53 of the opening 38, and the filter support 4
Improves 0's detachability.

(Embodiment 3) FIG. 14 is a partial sectional view of an electric vacuum cleaner according to Embodiment 3 of the present invention. The third embodiment is a detailed description of the window from the first embodiment. The same reference numerals as those in the first embodiment have the same structure, and the description thereof will be omitted.

In FIGS. 9 and 14, a window 55 made of a transparent material is provided on the side surface of the lower frame 14 of the cleaner body 11 near the side surface of the filter support 40, and 56 is the cleaner body 11 and It is a bumper that prevents scratches on furniture, etc.

Next, the operation and action will be described. If dust from the electric blower 12 adheres to the exhaust filter 41 and is conspicuously contaminated, the degree of contamination of the exhaust filter 41 can be confirmed from the transparent material window 55. Usability can be improved without opening and closing the storage lid 17 for confirmation.

Further, the outer peripheral end portion of the window 55 has a concave shape 57, and the window 5 is provided on the side surface of the lower frame body 14 of the cleaner body 11.
A notch 58 having the same shape as the outer peripheral shape of No. 5 is formed. The concave shape 57 of the window 55 is inserted and fitted into the side wall 59 of the cutout portion 58 of the cleaner body 11 to lock the window 55. As a result, the outer periphery of the window 55 formed by the concave shape 57 as shown in FIG. 14 is less likely to come off in the direction of the arrow, and the window 55 can be reliably locked with a simple configuration.

[0050]

As described above, according to the present invention, it is possible to provide an electric vacuum cleaner having a simple structure and low cost.

[Brief description of drawings]

FIG. 1 is a plan view of a cleaner body according to a first embodiment of the present invention.

FIG. 2 is a partial cross-sectional side view of the cleaner body.

FIG. 3 is a cross-sectional view of the cleaner body.

4 is a sectional view taken along line AA of FIG.

FIG. 5 is a horizontal sectional view of the cleaner body including a suction passage.

FIG. 6 is a partial schematic view of the rear of the cleaner body.

FIG. 7 is a horizontal cross-sectional view of the vacuum cleaner body including an exhaust portion.

FIG. 8 is a vertical cross-sectional view including an exhaust filter portion of the cleaner body.

FIG. 9 is a partial cross-sectional view of the cleaner body according to the second embodiment of the present invention.

FIG. 10 is a side sectional view showing a filter support body of the cleaner body.

FIG. 11 is an operation diagram when the storage lid of the cleaner body is opened.

FIG. 12 is a partial cross-sectional plan view of the same cleaner body.

FIG. 13 is an operation diagram when the filter support is attached to and detached from the cleaner body.

FIG. 14 is a partial cross-sectional view of a cleaner body according to a third embodiment of the present invention.

FIG. 15 is a sectional view of a conventional vacuum cleaner.

[Explanation of symbols]

11 Vacuum cleaner body 12 Electric blower 13 Dust collecting hose 17 Storage lid 19 Electric blower storage 20 air intake 21 Dust collector 22 code 23 Code reel room 26 Exhaust section 27 Suction passage 30 Outer part of the dust collecting part

Claims (8)

[Claims] 1. An electric blower which emits suction air, an intake port which is provided in front of the electric blower and which is an inlet port of the suction air to the cleaner body, and a dust collector which is detachable behind the electric blower. An electric vacuum cleaner having a portion, an exhaust portion for discharging exhaust air from the electric blower is formed in the cleaner body, and the exhaust portion is covered by an outer shell of the dust collecting portion. 2. The vacuum cleaner according to claim 1, wherein the exhaust air discharged from the electric blower flows along the outer contour of the dust collecting portion. 3. A cord reel chamber for accommodating a power cord is provided above or below the dust collecting portion, and exhaust air discharged from an electric blower passes through the cord reel chamber. Vacuum cleaner. 4. An electric blower accommodating body for accommodating an electric blower, wherein the electric blower accommodating body is provided with an exhaust filter through which exhaust air discharged from the electric blower passes. Vacuum cleaner according to the item. 5. A flow path of exhaust air discharged from an electric blower, downstream of the exhaust filter and upstream of the dust collecting portion,
The electric vacuum cleaner according to claim 4, further comprising a control circuit for controlling a driving operation of the electric blower. 6. The electric vacuum cleaner according to claim 4, wherein a rotatable storage lid is provided above the exhaust filter, and the exhaust filter is detachable from the cleaner body. 7. The vacuum cleaner main body in the vicinity of the exhaust filter is formed of a visible material to form an outer shell.
Vacuum cleaner according to the item. 8. An electric blower which emits suction air, an intake port which is an inlet port of the suction wind to the cleaner body in front of the electric blower, and a detachable dust collecting portion which is behind the electric blower. An electric vacuum cleaner in which a suction passage that connects the intake port and the dust collecting portion is arranged around the electric blower.