JP6754406B2 - Vacuum cleaner - Google Patents

Description

An embodiment of the present invention relates to an electric vacuum cleaner provided with a dust collector in a vacuum cleaner main body to which an extension pipe is connected.

Conventionally, there is a so-called stick type vacuum cleaner in which an extension pipe and a floor brush are directly connected to a vacuum cleaner body having a built-in electric blower. In such an electric vacuum cleaner, a dust collector is provided in the main body of the vacuum cleaner, and the dust is sucked into the dust collector together with air from the tip side of the floor brush or the extension pipe by driving the electric blower to collect the dust.

In the case of such an electric vacuum cleaner, it is required to make the vacuum cleaner body compact in consideration of operability, etc. Therefore, by limiting the arrangement of the dust collector and the electric blower, the dust collector from the extension pipe There is a concern that the air passage distance until the air is sucked into the electric blower will be long, and the suction efficiency will decrease. Therefore, it is required to shorten the air passage distance until the air is sucked into the electric blower.

Japanese Unexamined Patent Publication No. 2014-61451 Japanese Unexamined Patent Publication No. 2014-100571

An object to be solved by the present invention is to provide an electric vacuum cleaner capable of shortening the air passage distance until being sucked into an electric blower while ensuring suction efficiency.

The vacuum cleaner of the embodiment includes a main body having an electric blower, a vacuum cleaner main body provided with a dust collector, and a straight pipe portion connected to the vacuum cleaner main body, and grips the vacuum cleaner main body. It is a vacuum cleaner to be used. The dust collector includes an intake port for sucking in dust-containing air and an exhaust port for discharging air from which dust has been separated. Further, the main body portion includes a main body connection port to which the straight pipe portion is connected. Further, the main body portion is provided with a first opening that is opened facing the intake port and communicates the main body connection port and the intake port. Further, the main body portion is provided with a second opening that is opened facing the exhaust port at a position farther from the main body connection port than the first opening in the axial direction of the straight pipe portion and communicates with the suction side of the electric blower. The electric blower is adjacent to the dust collector across the outer shell of the main body, fits within the width of the dust collector in the axial direction of the straight pipe portion, and has a first opening in the axial direction of the straight pipe portion. Adjacent to the dust collector from to the second opening .

It is explanatory drawing which shows a part of the vacuum cleaner of one Embodiment schematically. It is sectional drawing of the vacuum cleaner main body of the electric vacuum cleaner as above. It is a perspective view which shows the main body part of the vacuum cleaner main body as above. It is a perspective view which shows the dust collector of the vacuum cleaner main body as above. It is a perspective view which shows the electric vacuum cleaner as above.

Hereinafter, the configuration of one embodiment will be described with reference to FIGS. 1 to 5.

In FIG. 5, 11 indicates a vacuum cleaner, and the vacuum cleaner 11 constitutes an electric vacuum cleaner together with a support device (charging stand) (not shown) that supports the vacuum cleaner 11 in a stored state not used for cleaning. Is.

The electric vacuum cleaner 11 is a so-called stick provided with a vacuum cleaner main body 15, an extension pipe 16 directly connected to the vacuum cleaner main body 15, and an air passage body 18 including a floor brush 17 as a suction port body. It is a type vacuum cleaner. Regarding the vacuum cleaner 11, the usage state (for example, in FIG. 5) of gripping the grip portion 19 described later to clean the surface to be cleaned (floor surface) in the front-rear direction, the vertical direction, the left-right direction, and the like. The state shown) is used as a reference. That is, the arrow U and arrow D directions shown in FIG. 5 are defined as the vertical direction, the arrow FR direction and the arrow RR direction are defined as the front-back direction, and the arrow L direction and the arrow R direction are defined as the left-right direction.

The vacuum cleaner main body 15 includes a main body portion 21 and a dust collector 22 that can be attached to and detached from the main body portion 21.

The main body 21 shown in FIGS. 1 to 3 has an outer shell formed of, for example, a main body case 25 made of synthetic resin or the like. The main body 21 has a connection portion 26 and a charging connection portion 27 located at one end, a protrusion 28 located at the other end, and a connection portion 26 and a charging connection portion 27 and a protrusion 28. A grip for gripping the vacuum cleaner main body 15 by connecting the continuous longitudinal main body 29, the holding portion 30 projecting from the main body 29 and holding the dust collector 22, and the protruding portion 28 and the holding portion 30. A portion 19 is configured, and a fitting portion 32 into which the dust collector 22 is fitted is recessed between the main body 29 and the holding portion 30. The main body 21 includes an electric blower 34, a control means 35 that controls the drive of the electric blower 34, and a secondary battery 36 that is a power source for the electric blower 34 and the control means 35. Is housed and constructed.

The connecting portion 26 is a portion to which one end (downstream end) of the extension pipe 16 is connected. The connecting portion 26 is formed in a cylindrical shape and protrudes from a front end portion (lower end portion) which is one end portion of the main body 29. That is, the front end portion of the connecting portion 26 is a main body connecting port 41 to which the extension pipe 16 is connected. Further, the connection portion 26 is provided with an extension pipe clamp portion 43 for holding the connected extension pipe 16, and also has a fulcrum portion 44 which serves as a fulcrum when the dust collector 22 is attached to the main body portion 21. It is provided. Further, the axial direction of the connecting portion 26 is substantially parallel to the longitudinal direction of the main body 29. Further, the connecting portion 26 is biased upward with respect to the front end portion (lower end portion) of the main body 29. The connection portion 26 is set to have a larger protrusion amount in the longitudinal direction of the main body 29 than the charging connection portion 27. Hereinafter, the axis A of the extension pipe 16 connected to the main body connection port 41 shall mean the central axis of the air passage in the extension pipe 16 along the opening direction of the main body connection port 41. Further, one side (other side) with respect to this axis A means that most of it or the center of gravity is located on one side (other side), and the whole is necessarily located on one side (other side). It is not necessary to do so, including the case where a part is located on the other side (one side).

The extension tube clamp portion 43 can use any well-known configuration, but is operably exposed above the connecting portion 26.

In the present embodiment, the fulcrum portion 44 is recessed in the upper part of the connecting portion 26, and is located behind the extension pipe clamp portion 43, that is, on the side opposite to the main body connecting port 41.

The charging connection portion 27 is for charging the secondary battery 36 and is a portion that is mechanically and electrically connected to the support device side. The charging connection portion 27 protrudes from the front end portion (lower end portion) of the main body 29, and a connection recess 47 is provided at the tip portion, and the inside of the connection recess 47 is electrically connected to the secondary battery 36. The charging terminal 48 is arranged. Further, the charging connection portion 27 is biased downward with respect to the front end portion (lower end portion) of the main body 29. Therefore, the charging connection 27 is located below the connection 26. In other words, the connecting portion 26 and the charging connecting portion 27 are arranged side by side at the front end portion of the main body 29 in a vertical direction, that is, in a direction intersecting (orthogonal) with the longitudinal direction of the main body 29.

The protruding portion 28 protrudes from the rear end portion (upper end portion) which is the other end of the main body 29, and the secondary battery 36 is housed therein. The protruding portion 28 is formed in a longitudinal direction along a direction inclined with respect to the axis A (longitudinal direction of the main body 29) of the extension pipe 16. That is, the protruding portion 28 is inclined in a direction separated from the axis A of the extension pipe 16 in the unilateral direction, and extends from the rear end portion (upper end portion) of the main body 29. In other words, the main body 21 is bent in a V shape by the protrusion 28 and the main body 29. Further, when the protruding portion 28 is placed at a position opposite to the main body 29 and the grip portion 19 of the protruding portion 28, that is, the lower portion of the rear end portion (rear end portion of the main body portion 21) is placed on the mounting surface. The ground contact surface 51 serves as a contact portion in contact with the mounting surface, and the main body exhaust port 52 is opened at the position of the ground contact surface 51.

The ground contact surface 51 is formed by being curved in an arc shape that is convex downward when viewed from the side, and is substantially formed in the width direction which is the left-right direction of the vacuum cleaner main body 15 (main body portion 21 (protruding portion 28)). It is continuous so that it has the same shape. That is, the ground contact surface 51 is formed so as to extend linearly along the left-right direction.

The main body exhaust port 52 communicates with the exhaust side (air passage on the exhaust side) of the electric blower 34, and discharges a part of the exhaust from the electric blower 34 to the outside of the main body 21 (vacuum cleaner main body 15). Is. The main body exhaust port 52 is opened in an elongated hole shape along the arc of the ground contact surface 51, and a plurality of the main body exhaust ports 52 are arranged side by side in the left-right direction.

The main body 29 is formed in a straight longitudinal shape, and is inclined so that the front portion is on the lower side and the rear portion is on the upper side in the used state. An electric blower 34, a control means 35, and the like are housed inside the main body 29. Further, in the main body 29, an intake communication port 54 as a first opening and an exhaust communication port 55 as a second opening communicating with the dust collector 22 are provided on the fitting portion 32, that is, the upper part facing the dust collector 22. Are each open. Further, inside the main body 29, an intake air passage portion 56 and an exhaust air passage portion 57, which communicate with the intake air passage port 54 and the exhaust communication port 55, respectively, are partitioned. Further, a plurality of main body exhaust ports (not shown) are opened side by side in the longitudinal direction of the main body 29 on the lower portion of the main body 29, that is, on both the left and right sides opposite to the fitting portion 32.

The intake communication port 54 is arranged so as to be separated from the exhaust communication port 55 on the front end side of the main body 29. That is, the intake communication port 54 and the exhaust communication port 55 are arranged side by side in the longitudinal direction of the main body 29, separated from each other, and opened in a direction intersecting (orthogonal) with respect to the axis A of the extension pipe 16. In other words, the exhaust communication port 55 is located on the side opposite to the main body connection port 41 with respect to the intake communication port 54.

Further, for example, a filter 55a is arranged at the exhaust communication port 55.

The intake air passage portion 56 (directly) communicates the main body connection port 41 and the intake communication port 54 (the suction side of the dust collector 22), and the upstream side is formed coaxially with the axis A of the extension pipe 16. The downstream side bends upward so as to intersect (orthogonally) the axis A. Therefore, the intake air passage portion 56 is formed by being bent in an L shape from the upstream side to the downstream side.

The exhaust air passage portion 57 (directly) communicates the exhaust communication port 55 with the suction side of the electric blower 34, and is formed linearly along the direction intersecting (orthogonal) with the axis A of the extension pipe 16. The downstream side is open in the direction along the axis A of the extension pipe 16.

The main body exhaust port communicates with the exhaust side (to the air passage on the exhaust side) of the electric blower 34, and a part of the exhaust from the electric blower 34 is discharged to the outside of the main body 21 (vacuum cleaner main body 15). is there.

The holding portion 30 is formed in a direction intersecting (orthogonal) with respect to the longitudinal direction of the main body 29 from the upper portion of the main body 29, specifically, the front portion at a position where the main body 29 and the protruding portion 28 are continuous, that is, the extension pipe 16. It projects along a direction substantially orthogonal to the axis A. Therefore, due to the holding portion 30 and the main body 29, the upper portion of the main body portion 21 surrounds the fitting portion 32 and has an L shape. The holding portion 30 is provided with a guide portion 61 that serves as a guide when the dust collector 22 is mounted on the main body portion 21 at a position facing the fitting portion 32.

The guide portion 61 is formed in a straight rib shape along, for example, along the holding portion 30, that is, along a direction intersecting (orthogonal) with respect to the longitudinal direction of the main body 29 (main body portion 21). In the present embodiment, the guide portions 61 are provided in pairs at positions facing the fitting portion 32 of the holding portion 30 so as to be separated from each other on the left and right. Further, these guide portions 61 are dust collector locking portions 61a in which the end portion on the base end side of the holding portion 30 locks and fixes the dust collector 22. Therefore, these guide portions 61 have a function of a locking fixing portion for locking and fixing the dust collector 22 to the main body portion 21.

The grip portion 19 is also called a hand operation portion, and has a continuous arc shape from the rear end portion of the protruding portion 28 (main body portion 21 (vacuum cleaner main body 15)) to the tip portion (front end portion) of the holding portion 30. It is formed. That is, the grip portion 19 is located at the uppermost portion of the main body portion 21, and is arranged so as to straddle the axis A of the extension pipe 16 on one side (lower side) and the other side (upper side). Therefore, at least a part of the grip portion 19 is located on the side opposite to the main body connection port 41 (connection portion 26) with respect to the electric blower 34 (main body 29). In other words, the grip portion 19 is arranged so that a part of the grip portion 19 is located on the axis A of the extension pipe 16. Therefore, the grip portion 19 is located above the secondary battery 36 housed in the protrusion 28, that is, in the vicinity immediately above. Further, the grip portion 19 is provided with a setting button 64 for setting the operation of the electric blower 34 or the like on the control means 35. The setting button 64 is arranged unevenly on the front side of the grip portion 19, that is, on the other side with respect to the axis A of the extension pipe 16, and can be operated by the thumb of the hand holding the grip portion 19. There is.

The fitting portion 32 is located on the upper side, which is the other side of the axis A of the extension pipe 16.

Further, the electric blower 34 is a heavy object also called a fan motor, and by generating a negative pressure by driving, dust-containing air is sucked into the dust collector 22 through the air passage body 18 and the dust collector 22 The dust is separated by sucking in the separated air, cooling it by itself, and then exhausting it. The electric blower 34 is formed in a cylindrical shape, is located on the axis A of the extension pipe 16 and is arranged on the main body 29 (main body 21), and the central axis is on one side of the axis A. It is located on the lower side. Further, the electric blower 34 is arranged so as to have an axial direction along the longitudinal direction of the main body 29 with the fan side, that is, the suction side as the upper side (rear side) and the electric motor side, that is, the exhaust side as the lower side (front side). There is. More specifically, in the electric blower 34, the suction side communicating with the exhaust side of the dust collector 22 via the exhaust communication port 55 is located closer to the main body connection port 41 than the exhaust communication port 55, and the main body 29 (main body). It is located in Part 21). In the present embodiment, the electric blower 34 is located between the exhaust communication port 55 and the intake communication port 54 and is arranged in the main body 29 (main body 21).

The control means 35 includes a drive control unit that operates the electric blower 34 and the like according to the user's setting by the setting button 64, and a charging circuit unit such as a constant current circuit that receives power from the support device side to charge the secondary battery 36. It is equipped with. In the present embodiment, for example, a circuit board provided with a microcomputer is used as the control means 35. Further, the control means 35 is located on the lower side (front side) of the electric blower 34, that is, on the main body connection port 41 side, and is arranged in the main body 29 (main body portion 21). Therefore, the control means 35 is located on the opposite side of the electric blower 34 from the secondary battery 36. Further, the control means 35 is arranged along a direction intersecting (orthogonal) with respect to the axis A of the extension pipe 16, and a part of the control means 35 is located on the axis A.

The secondary battery 36 is a battery pack in which a plurality of batteries are connected in series or in parallel. The secondary battery 36 is heavier than the electric blower 34 and is the heaviest of the vacuum cleaners 11. The secondary battery 36 is arranged along the protrusion 28. Therefore, the secondary battery 36 is located on the lower side of the extension pipe 16 on one side with respect to the axis A, and is separated from the axis A, that is, the axial direction of the electric blower 34. It has a longitudinal direction along a direction that inclines toward the direction, and is arranged substantially along the anteroposterior direction.

Further, the dust collector 22 shown in FIGS. 1, 2 and 4 is a separation main body 71 that separates dust from dust-containing air, and a dust accommodating unit that stores the dust separated by the separation main body 71. It is equipped with a cup portion 72. Further, the dust collector 22 is the heaviest object in the vacuum cleaner 11, that is, a heavy object having a weight substantially equal to that of the secondary battery 36. Further, the dust collector 22 generally has a cylindrical outer surface (outer peripheral surface). In other words, the dust collector 22 has an arcuate surface on the side opposite to the side facing the main body 21, in other words, the outer surface on the side exposed without being covered by the main body 21. Further, the dust collector 22 is sucked from the intake port 74 and the intake port 74, which sucks dust-containing air by driving the electric blower 34, at a position facing the main body 21 while being mounted on the main body 21. The exhaust ports 75 for discharging the air from which the dust has been separated by the separation main body 71 to the outside of the dust collector 22 are opened. Then, in this dust collector 22, the intake port 74 and the exhaust port 75 are opposed to the upper side of the main body 21 (main body 29), that is, the main body 21 is fitted with the intake port 74 and the exhaust port 75 side as the lower side. It is fitted to the joint portion 32 and attached to the main body portion 21. Therefore, the dust collector 22 is located on the upper side, which is the other side of the axis A of the extension pipe 16. In other words, the dust collector 22 is located on the side opposite to the secondary battery 36 with respect to the axis A of the extension pipe 16.

The separation main body 71 is formed of, for example, a synthetic resin. The separation main body 71 may have an arbitrary configuration. For example, in the present embodiment, the first separation section 77 for centrifuging (cyclone separation) coarse dust, which is relatively large dust, and the first separation section 77. A second separation unit 78 that centrifuges (cyclone separation) fine dust (fine dust), which is relatively small dust that could not be separated by the separation unit 77, and a slight amount in the air that has passed through the second separation unit 78. It is a multi-stage centrifuge type that includes a filter body 79 that separates (filters and separates) the contained dust inside. The separation main body 71 is formed in a substantially cylindrical shape, and the outer surface is an arcuate surface (substantially cylindrical surface). Further, an attachment / detachment mechanism 81 that detachably locks the dust collector 22 to the main body 21 (holding portion 30) is provided on the upper portion outside the separation main body 71, that is, on the side opposite to the cup portion 72. Has been done. The exhaust port 75 is opened in the separated main body 71 at a position facing the main body 21 (main body 29). As described above, the separation main body 71 has a more complicated structure than the cup 72 and is composed of a larger number of parts than the cup 72, and constitutes most of the weight of the dust collector 22, that is, It is heavier than the cup portion 72.

The first separation portion 77 is arranged coaxially with the cup portion 72 and a part of the first separation portion 77 is inserted into the cup portion 72, and dust (coarse dust) is centrifuged by swirling the dust-containing air in the cup portion 72. Separate and compress and store in cup 72.

A plurality of second separation portions 78 are arranged around the upper side of the first separation portion 77, for example, and are formed in a substantially cylindrical shape having a radius smaller than that of the cup portion 72, and allow air that has passed through the first separation portion 77 to pass through. By swirling inside, dust (fine dust) is centrifuged and stored in the cup portion 72.

The filter body 79 is arranged so as to face above the entire exhaust side of the second separation portion 78.

The cup portion 72 is formed in a bottomed cylindrical shape with, for example, a translucent synthetic resin, and is coaxially removable with respect to the lower end portion of the separation main body portion 71. Therefore, the outer surface of the cup portion 72 is an arcuate surface (substantially cylindrical surface). Further, the cup portion 72 has the intake port 74 opened at a position facing the main body portion 21 (main body 29), and also serves as a rotation fulcrum when the dust collector 22 is attached to the main body portion 21. A locking portion 89 is provided.

The locking portion 89 is projected below the intake port 74 at a position opposite to the separation main body portion 71 of the cup portion 72, that is, near the lower end portion. The locking portion 89 is engaged with the fulcrum portion 44 (FIGS. 2 and 3) of the main body portion 21, and by engaging with the fulcrum portion 44, the dust collector 22 is mounted on the main body portion 21 vertically and horizontally. Along with positioning in the direction, the attachment / detachment mechanism is attached along the guide portions 61 and 61 by rotating the upper side of the dust collector 22 toward the main body portion 21 around the locking portion 89 at the position of the fulcrum portion 44. The dust collector 22 can be attached to the main body 21 by operating 81.

The intake port 74 is airtightly connected to the intake communication port 54 with the dust collector 22 attached. Therefore, the intake port 74 is airtightly connected to the main body connection port 41 (via the intake communication port 54 and the intake air passage portion 56) with the dust collector 22 attached. That is, the intake port 74 opens along the direction intersecting (orthogonally) with respect to the axis A of the extension pipe 16 in the state where the dust collector 22 is attached. Further, the intake port 74 is configured to guide dust-containing air along the tangential direction of the cup portion 72.

The exhaust port 75 is airtightly connected to the exhaust communication port 55 with the dust collector 22 attached. Therefore, the exhaust port 75 is airtightly connected to the suction side of the electric blower 34 (via the exhaust communication port 55 and the exhaust air passage portion 57) with the dust collector 22 attached. That is, the exhaust port 75 opens along the direction intersecting (orthogonally) with respect to the axis A of the extension pipe 16 when the dust collector 22 is attached. Further, the exhaust port 75 is arranged above the intake port 74 and near the upper end portion of the dust collector 22.

The extension pipe 16 shown in FIG. 5 is formed in a long shape, and the base end side is connected to the main body portion 21 (connection portion 26 (main body connection port 41)) of the vacuum cleaner main body 15 to be connected to the dust collector 22. It is designed to be airtightly connected. Further, on the tip end side of the extension pipe 16, a floor brush clamp portion 91 as a suction port clamp portion for locking and holding the floor brush 17 detachably is provided.

The floor brush clamp portion 91 may use any well-known configuration, but is operably exposed above the extension tube 16.

Further, the floor brush 17 includes a case body 94 formed horizontally, that is, longitudinally in the left-right direction, and a connecting pipe 95 rotatably connected to the case body 94. A suction port 96 is opened in the case body 94 at a lower portion facing the surface to be cleaned. Further, the connecting pipe 95 communicates with the suction port 96 and is airtightly connected to the tip end side of the extension pipe 16, and this connection is maintained by the floor brush clamp portion 91.

Therefore, an air passage from the floor brush 17 (suction port 96) to the extension pipe 16, the main body connection port 41, the dust collector 22, and the suction side of the electric blower 34 is configured.

Next, the operation of the above embodiment will be described.

When cleaning with the electric vacuum cleaner 11, as shown in FIGS. 1 to 5, the vacuum cleaner main body 15 (main body 21 (main body connection port 41)) in which the dust collector 22 is attached to the main body 21 is attached. On the other hand, the base end side of the extension pipe 16 is connected and locked and held detachably by the extension pipe clamp portion 43, and the connection pipe 95 of the floor brush 17 is inserted and connected to the tip side of the extension pipe 16. It is detachably locked and held by the floor brush clamp portion 91. In this state, the floor brush 17 communicates with the dust collector 22 via the extension pipe 16, the main body connection port 41 of the vacuum cleaner main body 15, the intake air passage portion 56, the intake air passage port 54, and the intake port 74. It communicates with the suction side of the electric blower 34 (via the exhaust port 75 of the dust collector 22, the exhaust communication port 55 of the vacuum cleaner main body 15, and the exhaust air passage portion 57).

Then, in the vacuum cleaner 11, the control means 35 is electrically operated by the operation set by the user who grips the grip portion 19 by placing the floor brush 17 on the surface to be cleaned and operating the setting button 64 of the grip portion 19. While driving the blower 34 and alternately running the floor brush 17 on the surface to be cleaned in the front-rear direction, the diagonal direction, etc., the negative pressure generated by the drive of the electric blower 34 is used to suck in the dust on the surface to be cleaned. .. That is, the negative pressure generated by driving the electric blower 34 is the exhaust air passage portion 57, the exhaust communication port 55, the dust collector 22, the intake port 74, the intake communication port 54, the intake air passage portion 56, and the main body connection port 41. It acts with the extension pipe 16 and the floor brush 17 (connecting pipe 95 and suction port 96), and sucks dust together with air from the suction port 96 of the floor brush 17. The sucked dust-containing air flows linearly from the floor brush 17 through the extension pipe 16 along the axis A of the extension pipe 16, and is L-shaped from the main body connection port 41 through the intake air passage portion 56. While bending in a shape, it is sucked into the dust collector 22 through the intake communication port 54 and the intake port 74. Inside the dust collector 22, dust-containing air is swirled by the first separation unit 77 and the second separation unit 78 to centrifuge almost all the dust, and when a small amount of fine dust remains, the filter body 79 Be collected. The air from which the dust has been separated is discharged linearly from the exhaust port 75 to the outside of the dust collector 22, flows linearly through the exhaust communication port 55 and the exhaust air passage portion 57, and then the electric blower 34. The electric blower 34 is cooled (indicated by the arrow W in FIG. 1), and is discharged to the outside of the vacuum cleaner main body 15 from the main body exhaust port 52 and the like.

When the cleaning is completed, the user operates the setting button 64 to stop the electric blower 34 by the control means 35. Then, the vacuum cleaner 11 is attached to the support device and put into the stored state.

According to one embodiment described above, the intake communication port 54 and the exhaust communication port 55 are opened facing the dust collector 22 in a direction intersecting the axis A of the extension pipe 16, and the exhaust communication port 55 is opened. The 55 is arranged on the rear side opposite to the main body connection port 41 with respect to the intake communication port 54, and the electric blower 34 is on the axis A of the extension pipe 16 and on the suction side communicating with the exhaust communication port 55. Is located in the main body 21 on the front side of the main body connection port 41 side of the exhaust communication port 55, so that the dust-containing air flowing linearly through the extension pipe 16 can be bent in the minimum number of times. And is sucked into the electric blower 34 without taking a long air passage from the dust collector 22. Therefore, the air passage distance until the air is sucked into the electric blower 34 can be shortened, and the dust-containing air sucked through the extension pipe 16 flows into the dust collector 22 while maintaining the inertia, so that the suction efficiency is lowered. Can be prevented.

Further, by arranging the electric blower 34 in the main body 21 in the space between the intake communication port 54 and the exhaust communication port 55, the electric blower 34 can be arranged compactly.

That is, in the case of the stick-type vacuum cleaner 11 in which the extension pipe 16 is directly connected to the vacuum cleaner main body 15, it is required to suppress the size of the vacuum cleaner main body 15, and the arrangement of the electric blower 34 and the like is restricted. Therefore, the electric blower 34, the intake communication port 54, and the exhaust communication port 55 are arranged by effectively utilizing the space of the main body 21, and the dust collector 22 is arranged along the main body 21 for cleaning. The air passage distance before being sucked into the electric blower 34 can be minimized without increasing the size of the machine body 15.

In the above embodiment, as the power supply unit, in addition to the secondary battery 36, for example, a cord reel device that takes power from an external power source using a power cord can also be used.

Although one embodiment of the present invention has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. This novel embodiment can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

11 vacuum cleaner
15 Vacuum cleaner body
16 Extension pipe that is a straight pipe
21 Main body
22 Dust collector
34 Electric blower
41 Main unit connection port
54 Intake air intake as the first opening
55 Exhaust communication port as the second opening
74 Intake port
75 Exhaust port A axis

Claims (1)

It is an electric vacuum cleaner that includes a main body having an electric blower, a vacuum cleaner main body equipped with a dust collector, and a straight pipe portion connected to the vacuum cleaner main body, and grips and uses the vacuum cleaner main body. hand,
The dust collector includes an intake port for sucking dust-containing air and an exhaust port for discharging dust-separated air.
The main body
The main body connection port to which the straight pipe portion is connected and
A first opening that is opened facing the intake port and communicates between the main body connection port and the intake port,
In the axial direction of the straight pipe portion, a second opening that is opened facing the exhaust port at a position farther from the main body connection port than the first opening and communicates with the suction side of the electric blower is provided.
The electric blower is adjacent to the dust collector across the outer shell of the main body portion, fits within the width of the dust collector in the axial direction of the straight pipe portion, and is in the axial direction of the straight pipe portion. An electric vacuum cleaner characterized in that it is adjacent to the dust collector from the first opening to the second opening .

Images