WO2012133542A1

WO2012133542A1 - Vacuum cleaner

Info

Publication number: WO2012133542A1
Application number: PCT/JP2012/058165
Authority: WO
Inventors: 潤吉田; 英治椋本; 文礼王
Original assignee: 三洋電機株式会社
Priority date: 2011-03-31
Filing date: 2012-03-28
Publication date: 2012-10-04
Also published as: JP2012210289A

Abstract

A vacuum cleaner comprises a cleaner main body (1) with a suction port (4) formed on the lower front part thereof, whereat a hose is connected, and a dust collection device (30) which is detachably mounted on the front part of the cleaner main body (1). The dust collection device (30) further comprises an approximately cylindrical dust collection case (31) which has an intake port (40) which is connected to the suction port (4), a lid body (35) which closes the upper part of the dust collection case (31), and an exhaust tube (34) which is extended from the lid body (35) within the dust collection case (31). Filters (33, 36) are disposed upon the exhaust tube (34) which filter air within the dust collection case (31). An exhaust port (41) is formed upon the lid body (35) which is connected to the exhaust tube (34). The dust collection case (31) is mounted on the cleaner main body (1) in a state wherein the exhaust port (41) is inclined toward the rear. An electric blower (13) is positioned in the rear part of the cleaner main body (1) located above the cleaner main body (1) with the intake side facing the exhaust port (41) and the axial direction approximately horizontal. A cord reel (21) is positioned in a location below the electric blower (13).

Description

Electric vacuum cleaner

The present invention relates to a cyclone type electric vacuum cleaner.

2. Description of the Related Art Conventionally, there is known an electric vacuum cleaner in which a cyclone dust collector is detachably attached to the front and an electric blower is housed behind (Patent Document 1).
The dust collecting device of Patent Document 1 includes a substantially cylindrical dust collecting case, a lid that closes the upper part of the dust collecting case, and an exhaust pipe that is formed to hang down from the lid into the dust collecting case. An intake port is formed in the upper part of the side surface of the dust collection case, and a discharge port is formed in the lid.

A cyclone space that separates dust by swirling the air sucked from the intake port is formed in the upper space facing the intake port between the dust collection case and the exhaust pipe, and the cyclone space is separated in the lower space. A dust collection space for guiding and accumulating dust through the gap is formed. The exhaust tube is formed with a large number of minute ventilation holes in the cyclone space position, and air separated from the dust in the cyclone space is sucked into the inside through the ventilation holes and passes through the filter arranged in the lid. Then, it is sucked into the electric blower from the discharge port.

As described above, the dust collection device of Patent Document 1 requires a cyclone space and a dust collection space. However, since dust accumulates in the dust collection space from below to above, sufficient accumulation of dust is possible. The dust collector is formed in a vertically long shape so that the amount can be secured. Since the cyclone type vacuum cleaner of patent document 1 has accommodated the vertical dust collector in the perpendicular direction, a vacuum cleaner main body also becomes a dimension up and down, and becomes a vertically long and unstable shape. In addition, the hose to which the floor suction tool or the like is connected communicates with an air inlet formed in the upper part of the dust collecting case of the dust collector, and thus is configured to be connected to an upper position of the cleaner body. For this reason, there is a problem that when the hose is pulled along with the cleaning operation, the cleaner body is likely to fall down in combination with the unstableness of the cleaner body.

In order to solve the above problem, the dust collector is disposed obliquely with respect to the cleaner body, and the hose is connected to the front lower part of the cleaner body, so that the vertical direction of the cleaner body An electric vacuum cleaner that suppresses the increase in dimensions and prevents the vacuum cleaner body from overturning is known (Patent Document 2).

JP 2010-148882 A Japanese Patent Application No. 2010-244990

In the electric vacuum cleaner of Patent Document 2, in order to reduce the suction resistance of the electric blower and improve the dust suction efficiency, the electric blower is arranged with the intake port facing upward, and the cord reel is located on the side of the electric blower. It is installed side by side. Since the electric vacuum cleaner of Patent Document 2 has the electric blower and the cord reel arranged side by side in the lateral direction, there is a problem that the width dimension of the rear portion of the cleaner main body becomes large. Moreover, the vacuum cleaner of patent document 2 has an exhaust port formed in the upper rear part of the vacuum cleaner body, and it is necessary to set a wide area of the exhaust air passage so that the exhaust from the electric blower is efficiently guided to the exhaust port. In combination with the electric blower and the cord reel being arranged in parallel, there has been a problem that the width of the rear portion of the main body of the vacuum cleaner becomes large as a whole.

In order to solve such a problem, an object of the present invention is to provide a cyclone type vacuum cleaner that can improve dust suction efficiency and can reduce the size of the vacuum cleaner body.

A vacuum cleaner body (1) in which a suction port (4) to which a hose is connected at the lower front is formed, and a dust collector (30) that is detachably attached to the front of the vacuum cleaner body; The dust device includes a substantially cylindrical dust collection case (31) having an intake port (40) communicating with the suction port, a lid (35) that closes an upper portion of the dust collection case, and the lid from the lid A filter (33, 36) that extends in the dust collection case and has an exhaust pipe (34) positioned substantially at the center of the dust collection case, and filters the air in the dust collection case through the exhaust pipe. ) And a discharge port (41) communicating with the exhaust pipe is formed in the lid body, and the dust collecting case is attached to the cleaner body with the discharge port inclined rearward. In the rear part of the vacuum cleaner body, the electric blower (13) is located in front of the intake side in the upper position of the vacuum cleaner body. While it is disposed substantially horizontally in the axial direction toward the discharge port, wherein said that the cord reel to the lower position of the electric blower (21) is arranged.

In this section, the alphanumeric characters in parentheses indicate reference numerals of corresponding components in the embodiments described later, but the invention is not limited by these reference numerals.
According to this configuration, the electric blower is arranged with the intake side facing the discharge port, and the electric blower and the cord reel are arranged above and below, thereby maintaining the dust suction efficiency of the electric vacuum cleaner and cleaning. It is possible to reduce the size of the machine body, particularly the width of the rear part of the vacuum cleaner body.

The vacuum cleaner body includes a traveling wheel (26) that is formed to be inclined so that the interval between the rear side walls becomes wider as it goes downward, and is rotatably disposed on the side walls. preferable.
According to this configuration, since the traveling wheel is tilted so as to spread as it goes downward, the main body of the cleaner can be stably traveled.

Further, the cleaner body has a discharge port (25) formed on the side surface facing the traveling wheel, substantially perpendicular to the side surface or obliquely upward, through which the exhaust from the electric blower passes, It is preferable that the traveling wheel penetrates in a substantially vertical direction with respect to the sidewall of the traveling wheel, and an exhaust port (29) is formed at a position corresponding to the discharge port.
According to this configuration, since the exhaust from the electric blower is exhausted upward via the discharge port and the exhaust port, the exhaust does not blow on the surface to be cleaned, and the dust on the surface to be cleaned by the exhaust It is possible to prevent the hoisting and the like from being prevented.

It is sectional drawing which shows embodiment of this invention. It is a disassembled perspective view which shows the positional relationship of the electric blower and a cord reel. It is a side view of the state which removed the traveling wheel. It is the same side view. It is sectional drawing explaining the flow of the exhaust_gas | exhaustion from the same electric blower. It is sectional drawing which shows the structure of the dust collector.

Reference numeral 1 denotes a vacuum cleaner body, which is composed of an upper case 2 and a lower case 3. Reference numeral 4 denotes a suction port formed in the lower front portion of the cleaner body 1, to which a flexible hose is detachably connected, and communicates with a floor suction tool (both not shown) through an extension pipe. ing.
5 is a dust collector housing chamber formed at the front of the cleaner body 1, a front side wall surface that supports the bottom of the dust collector 30 described later, and a rear side wall surface that supports the lid 35 of the dust collector 30. have. A connection port (not shown) is formed at a position in front of the bottom surface of the dust collector storage chamber 5, and an intake port 40 of a dust collector 30 (to be described later) is connected to the connection port in an airtight manner. Reference numeral 6 denotes a suction port formed at a substantially central portion of the rear side wall surface of the dust collector storage chamber 5, and a discharge port 41 of the dust collector 30 described later is connected in an airtight manner. A dust suction path 7 is formed in the cleaner body 1 and extends from the suction port 4 to the connection port, and is defined by ribs 8 and 9 formed integrally with the upper case 2 and the lower case 3.

A partition plate 10 divides the rear portion of the cleaner body 1 up and down, and is held so as to form a plurality of air passages (not shown) between the inner surface of the cleaner body 1 and a large number of small holes 11 in a substantially central portion. Is formed.
12 is a storage unit that stores the electric blower 13, and includes a motor storage unit 14 that stores a motor unit of the electric blower 13 and a fan storage unit 15 that stores a fan unit of the electric blower 13. The electric blower 13 is supported so that the intake side is directed forward and the axial direction of the electric blower 13 is substantially horizontal. An exhaust pipe 16 is formed downward in the motor storage section 14 of the storage section 12, and the exhaust pipe 16 is airtightly fixed to the partition plate 10 so as to surround the small hole 11 of the partition plate 10. Has been. Reference numeral 17 denotes an exhaust filter disposed in the exhaust pipe 16. An opening 18 is formed in the fan housing portion 15 at a position facing the intake port of the electric blower 13, and the opening 18 and the suction port 6 are airtightly connected by a suction path 19. Reference numeral 20 denotes a cord reel storage chamber formed below the partition plate 10, and a cord reel 21 supports a rotating shaft 22 substantially vertically.

In the upper space of the cleaner body 1, exhaust chambers 23 are formed on both sides of the storage portion 12, and a control board (not shown) is stored in the exhaust chamber 23. It communicates with the cord reel storage chamber 20 through the ventilation path (not shown) formed between the partition plate 10.
The both side walls of the rear part of the vacuum cleaner body 1 are formed to be inclined so that the distance between the side walls corresponding to the exhaust chamber 23 becomes wider as it goes downward. Reference numeral 24 denotes a bearing hole formed on the side surface of the

cleaner body

1, and 25 denotes a plurality of discharge ports formed above the bearing hole 24 on the side surface of the cleaner body 1 and on a concentric circle with respect to the bearing hole 24. It is formed substantially perpendicular to the both side walls of the machine body 1 or obliquely upward.

26 is a traveling wheel provided with an axle (not shown) supported by the bearing hole 24, and is rotatably supported by the cleaner body 1 so as to cover the discharge port 25. Reference numeral 28 denotes a shielding wall disposed below the discharge port 25, which prevents the exhaust discharged from the discharge port 25 from flowing downward from the gap between the side wall of the cleaner body 1 and the traveling wheel 26. . A plurality of exhaust ports 29 are formed in the traveling wheel 26 so as to be substantially perpendicular to the side wall of the traveling wheel 26 or inclined in the outer diameter direction, and the exhaust discharged from the discharge ports 25 is exhausted from the traveling wheel 26. 26 is exhausted obliquely upward through 26 exhaust ports 29.

A dust collector 30 is detachably housed in the dust collector housing chamber 5 of the vacuum cleaner main body 1. The dust collector 31 is formed of a transparent synthetic resin and has an open top surface. A cylindrical tube 32 that is rotatably mounted on the bottom surface in the dust case 31, an exhaust tube 34 that is disposed inside the tube 32 and includes a main filter 33, and an upper surface of the dust collection case 31. It is comprised with the cover body 35 which obstruct | occludes opening freely. The dust collector 30 is mounted so as to be inclined so that the lid 35 faces the rear upper part in a state of being stored in the dust collector storage chamber 5.

The cylindrical body 32 is provided with a mesh-like pre-filter 36 in substantially half of the lid 35 side, and a spiral body 37 over the entire outer periphery.
The main filter 33 is formed by disposing a non-woven fabric folded in the shape of a bowl on the outer periphery of an exhaust cylinder 34 serving as a passage for filtered air. The exhaust cylinder 34 is detachably attached to the lower surface of the dust collection case 31, and the exhaust cylinder 34 sandwiches the cylinder 32 between the exhaust cylinder 34 and the lower surface of the dust collection case 31.

Reference numeral 38 denotes a handle provided on a side surface of the dust collection case 31 located above the dust collector 30 in a state where the dust collector 30 is attached to the cleaner body 1. Reference numeral 39 denotes a cylinder 32 provided on the bottom surface of the dust collection case 31. It is a rotation mechanism that rotates.
Reference numeral 40 denotes an air inlet provided on the side surface of the dust collection case 31, which is eccentric at the front lower position and with respect to the center of the dust collection case 31 when the dust collector 30 is attached to the cleaner body 1. It is formed at the above-mentioned position and is connected to the connection port of the cleaner body 1 in an airtight manner by packing (not shown) provided at the periphery. Further, the connection port is provided with a valve body (not shown) that is always biased in the direction of closing the intake port 40 and opens only inside the dust collection case 31, and dust and the like in the dust collection case 31 are sucked into the connection port. Leaking from the mouth 40 is prevented.

The lid 35 is formed with a discharge port 41 at a substantially central portion. The discharge port 41 communicates with the exhaust tube 34 of the main filter 33 and the dust collector 30 is attached to the cleaner body 1. In this state, the discharge port 41 communicates with the suction port 6 of the cleaner body 1 in an airtight manner through a packing (not shown). The packing provided at the discharge port 41 contacts the exhaust cylinder 34 of the main filter 33, and air that does not pass through the nonwoven fabric of the main filter 33 flows toward the electric blower 13 from between the exhaust cylinder 34 and the lid 35. It is designed to prevent this.

Thus, when a flexible hose is connected to the suction port 4 and the electric blower 13 is driven, the dust sucked from the floor suction tool is removed from the suction port 4 via the extension pipe and the flexible hose. 7, enters the dust collection case 31 through the connection port and the intake port 40, flows to the lid body 35 while turning along the inner wall of the dust collection case 31, and relatively large dust is compressed and accumulated from the lid body 35 side. I will do it.
Fine dust passes through the pre-filter 36 together with air, but is filtered by the nonwoven fabric of the main filter 33, and only clean air passes through the main filter 33 and passes through the suction fan 19 and the electric blower 13. The air exhausted from the electric blower 13 is blown toward the cord reel 21 through the exhaust pipe 16 and the small hole 11 to cool the power cord of the cord reel 21. Then, it passes through the exhaust chamber 23 located in the both sides of the accommodating part 12 through the ventilation path between the partition plate 10 and the cleaner main body 1, and is discharged outside from the discharge port 25 of the cleaner main body 1 side surface. . Air discharged from the discharge port 25 is discharged obliquely upward from an exhaust port 29 formed in the traveling wheel 26 facing the discharge port 25.

In the present embodiment, by arranging the electric blower 13 and the cord reel 21 vertically, the lateral width of the rear portion of the vacuum cleaner main body 1 can be reduced as compared with the configuration in which the cord reel is disposed on the side of the electric blower. Can do.
Further, by disposing the electric blower 13 upward, the intake port of the electric blower 13 can be opposed to the discharge port 41 facing rearward in the storage state of the dust collector 30, and the intake port of the electric blower 13 is discharged. By supporting substantially horizontally toward the outlet 41, the air in the dust collector 30 can be smoothly led from the outlet 41 to the inlet of the electric blower 13, reducing the suction resistance and improving the dust suction efficiency. be able to.

Further, the exhaust from the electric blower 13 is blown through the exhaust pipe 16 and the small hole 11 toward the cord reel 21 disposed at the lower position of the electric blower 13. Can be cooled.
In addition, the exhaust that has cooled the cord reel 21 is guided to the exhaust chambers 23 located on both sides of the storage unit 12 through the ventilation path between the partition plate 10 and the inner surface of the cleaner body 1, and the exhaust flows smoothly. The exhaust can be efficiently led to the exhaust port 29. Further, the discharge port 25 and the exhaust port 29 are formed upward, and by providing the shielding wall 28, the exhaust can be exhausted upward, and dust is prevented from being rolled up by the exhaust. Can do.

Further, since the exhaust after cooling the cord reel 21 is configured to be introduced into the wide exhaust chamber 23 through a relatively narrow air passage between the partition plate 10 and the inner surface of the cleaner body 1, it is narrow. By flowing from the ventilation path to the exhaust chamber 23, the flow rate of the exhaust is reduced, and noise associated with the exhaust can be reduced.
Furthermore, the cleaner main body 1 can be stably driven by tilting and supporting the running wheels 26 so that the running wheels 26 spread downward. Further, coupled with the fact that the suction port 4 to which the hose is connected is formed at the bottom of the cleaner body 1, the stability of the cleaner body 1 can be improved when the hose is pulled with the cleaning operation. It is possible to prevent the vacuum cleaner body 1 from falling.

The present invention is widely applicable to cyclone vacuum cleaners.
The present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the claims.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 4 Suction port 5 Dust collector storage chamber 6 Suction port 10 Partition plate 11 Small hole 12 Storage part 13 Electric blower 16 Exhaust pipe 19 Suction path 20 Code reel storage chamber 21 Code reel 23 Exhaust chamber 24 Bearing hole 25 Exhaust Exit 26 Traveling wheel 28 Shielding wall 29 Exhaust port 30 Dust collector 31 Dust collection case 32 Cylinder 33 Main filter 34 Exhaust cylinder 35 Cover body 40 Inlet 41 Inlet 41

Claims

A vacuum cleaner body in which a suction port to which a hose is connected is formed in the lower front part, and a dust collector that is detachably attached to the front part of the vacuum cleaner body,
The dust collector includes a substantially cylindrical dust collecting case having an air inlet that communicates with the suction port, a lid that closes an upper portion of the dust collecting case, and extending from the lid into the dust collecting case. And an exhaust pipe positioned at substantially the center of the dust collection case,
The exhaust pipe is provided with a filter for filtering the air in the dust collection case, and the lid body is formed with a discharge port communicating with the exhaust pipe,
The dust collection case is attached to the cleaner body in a state where the discharge port is inclined rearward,
At the rear of the vacuum cleaner body, the electric blower is arranged substantially horizontally in the axial direction with the intake side facing the discharge port at the upper position of the vacuum cleaner body, and the code reel is arranged at a lower position of the electric blower A cyclone type vacuum cleaner characterized by being made.
The vacuum cleaner main body is formed to be inclined so that the interval between the rear side walls becomes wider as it goes downward, and includes running wheels that are rotatably disposed on the side walls. The cyclonic vacuum cleaner according to claim 1.
The cleaner body has a discharge port through which exhaust from the electric blower is formed on a side surface facing the traveling wheel, substantially perpendicular to the side surface or obliquely upward.
The cyclonic vacuum cleaner according to claim 2, wherein the traveling wheel has an exhaust port formed at a position corresponding to the discharge port.