CN111436855A

CN111436855A - Electric vacuum cleaner

Info

Publication number: CN111436855A
Application number: CN201910824121.0A
Authority: CN
Inventors: 山谷辽; 伊藤则和; 矢野将; 佐藤叶登
Original assignee: Hitachi Global Life Solutions Inc
Current assignee: Hitachi Global Life Solutions Inc
Priority date: 2019-01-16
Filing date: 2019-09-02
Publication date: 2020-07-24
Also published as: JP2022125218A; JP2020110472A; TWI711421B; JP2024074961A; TW202027669A

Abstract

The invention provides an electric dust collector which can realize miniaturization. The electric vacuum cleaner includes: a cleaner main body (1); an electric fan (40) housed in the cleaner body (1) and used for generating suction force; a motor (40a) housed in the cleaner body (1) and driving the electric fan (40); a battery (3) mounted on the cleaner body (1) and supplying electric power to the motor (40 a); and a dust collecting device (2) which is attached to the cleaner body (1) and which stores dust sucked by the suction force, wherein the dust collecting device (2), the motor (40a), and the battery (3) are arranged on a straight line in the longitudinal direction of the cleaner body (1).

Description

Electric vacuum cleaner

Technical Field

The present invention relates to an electric vacuum cleaner.

Background

As a background art in this field, japanese patent application laid-open No. 2016-. The publication describes: "electric vacuum cleaner includes: a cleaner body having a body connection port; a storage seat for supporting and storing the cleaner main body; and a charging circuit provided in the housing and charging the secondary battery of the cleaner body in a state where the cleaner body is housed in the housing. The storage seat includes: a support part for supporting the cleaner main body in a posture that the main body connection port faces downward; a recess having a bottom plate facing the main body connection port in a state where the cleaner main body is supported by the support portion; and a side wall portion having a notch for opening the recess portion to a side of the receptacle to ensure visibility. "(refer to abstract).

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2016-131795

Disclosure of Invention

Technical problem to be solved by the invention

In the electric vacuum cleaner disclosed in patent document 1, the electric blower, the dust separation and collection unit, and the secondary battery are not arranged in a straight line in the longitudinal direction. Therefore, the size of the electric vacuum cleaner in the short side direction becomes large, and there is a problem that the electric vacuum cleaner cannot be downsized.

Accordingly, an object of the present invention is to provide a vacuum cleaner that can be downsized.

Means for solving the problems

In order to solve the above problem, the present invention includes: a cleaner main body; an electric fan housed in the cleaner body for generating an attraction force; a motor housed in the cleaner body for driving the electric fan; a battery mounted on the cleaner body for supplying electric power to the motor; and a dust collecting device attached to the cleaner body and configured to store dust sucked by the suction force, wherein the dust collecting device, the motor, and the battery are arranged on a straight line in a longitudinal direction of the cleaner body.

Effects of the invention

According to the present invention, a vacuum cleaner that can be miniaturized can be provided.

Problems, structures, and effects other than those described above will be apparent from the following description of the embodiments.

Drawings

Fig. 1 is a perspective view showing a state in which an electric vacuum cleaner according to an embodiment of the present invention is housed in a support base.

Fig. 2 is an exploded view of an electric vacuum cleaner according to an embodiment of the present invention.

Fig. 3 is a side view of the electric vacuum cleaner in a state of fig. 2 viewed from the left side.

Fig. 4 is a perspective view of an electric vacuum cleaner according to an embodiment of the present invention.

Fig. 5 is a plan view of an electric vacuum cleaner according to an embodiment of the present invention.

Fig. 6 is a sectional view VI-VI of fig. 5.

Fig. 7 is an enlarged sectional view of the periphery of a release button of an electric vacuum cleaner according to an embodiment of the present invention.

Fig. 8 is an enlarged sectional view of the periphery of a release button of an electric vacuum cleaner according to an embodiment of the present invention.

Fig. 9 is a side view of the electric vacuum cleaner of the embodiment of the present invention as viewed from the right side.

Fig. 10 is a side view of the electric vacuum cleaner of the embodiment of the present invention as viewed from the left side.

FIG. 11 is a cross-sectional view XI-XI of FIG. 10.

Fig. 12 is a sectional view XII-XII of fig. 10.

Fig. 13 is a plan view of a state in which an accessory is attached to an electric vacuum cleaner according to an embodiment of the present invention.

Fig. 14 is a perspective view showing a support base of an electric vacuum cleaner according to an embodiment of the present invention.

Fig. 15 is a side view showing an electric vacuum cleaner and a support base according to an embodiment of the present invention.

Fig. 16 is a diagram showing a mode of use when the electric vacuum cleaner in a stick-type state cleans the floor in the electric vacuum cleaner according to the embodiment of the present invention.

Fig. 17 is a view showing a mode of use when the electric vacuum cleaner of the embodiment of the present invention is used in a stick-type state to clean a high place.

Detailed Description

Hereinafter, embodiments for carrying out the present invention (hereinafter, referred to as "embodiments") will be described in detail with reference to the accompanying drawings.

Fig. 1 is a perspective view showing a state in which the electric vacuum cleaner of the present embodiment is housed in a support base.

As shown in fig. 1, the electric vacuum cleaner 100 is an electric vacuum cleaner that can be changed to various modes of use such as a hand-held (hand) state and a stick (stick) state to perform cleaning. The support stand 70 for storing the electric vacuum cleaner 100 is stored in a pole-type state in which an extension pipe 300 (attachment) and a standard cleaner head 400 (attachment) are connected to the electric vacuum cleaner 100, and includes a base portion 71 and an upright portion 72. The electric vacuum cleaner 100 can be used by connecting a small-sized suction head (attachment), a broom-type suction head (attachment), an extension hose (attachment), and the like, all of which are not shown. The standard tip 400 is a brush-type tip in which a brush is rotated by a motor.

Fig. 2 is an exploded view of the electric vacuum cleaner of the present embodiment. The front, rear, left, right, and up-down directions as viewed from the cleaner body 1 are appropriately shown in the drawings of fig. 2 and later.

As shown in fig. 2, the electric vacuum cleaner 100 includes a cleaner body 1, a dust box 2 (dust collecting device), a storage battery 3, and an airtight holding member 90.

The cleaner body 1 includes a main body portion 10, a motor housing portion 11, and a handle portion 12.

The main body 10 has a connection port 10a (suction port), and the connection port 10a is capable of connecting an extension tube 300, a standard tip 400 (see fig. 1), and the like. The connection port 10a is molded from the same resin as the main body 10, the motor housing 11, the handle 12, and the like. The connection port 10a has a substantially circular opening and is formed facing forward. The connection port 10a is capable of connecting the extension pipe 300, the standard tip 400, a small-sized tip (not shown), a broom-type tip (not shown), and the like (hereinafter, collectively referred to as "attachment" in some cases) as accessories. The connection port 10a is provided with a terminal (not shown) electrically connected to the circuit board 50 (see fig. 6), and when a motor-driven accessory such as the standard tip 400 is connected, the brush is rotated by the electrically connected motor.

The main body 10 is detachably attached with the dust box 2, and includes an inlet pipe 14 (see fig. 3), and the inlet pipe 14 sends air containing dust sucked from the connection port 10a into the dust box 2.

The motor case portion 11 incorporates a motor fan 40 (see fig. 6) and a circuit board 50 (see fig. 6). A circular suction port (not shown) for sucking in clean air collected by the dust box 2 is formed in the front surface of the motor housing portion 11.

The grip portion 12 is provided on the rear side of the body portion 10, and has a grip portion 12a formed in a substantially L-shape, the grip portion 12a has a1 st grip portion 12a1 linearly extending in the front-rear direction so as to gradually become higher toward the rear side, and a2 nd grip portion 12a2 linearly extending in the substantially vertical direction, in addition, in the grip portion 12a, the 2 nd grip portion 12a2 extends substantially downward from the rear end of the 1 st grip portion 12a1, the 1 st grip portion 12a1 is located at a position forward of the 2 nd grip portion 12a2, the 2 nd grip portion 12a2 is slightly inclined forward with respect to the upper portion thereof in the vertical direction, in addition, the 1 st grip portion 12a1 and the 2 nd grip portion 12a2 are formed substantially in a rod shape and continuously, and in this way, the 1 st grip portion 12a1 and the 2 nd grip portion 12a2 are respectively configured linearly, whereby the position where the user can easily recognize and the grip portion 12a1 is not easily shifted to the grip portion 9612 a 3612 a, and the grip portion 9612 a is easily shifted to the first grip portion 9612 a 3612 a, and when the grip portion 12a is connected to the first grip portion 9612 a is bent at a 3612 a side, and the first grip portion 9612 a is not easily shifted to the right angle.

The 1 st grip portion 12a1 extends to be gradually higher toward the rear side in the front-rear direction. Therefore, the hand can be easily put into the gap 12c (see fig. 6).

Further, an operation button 12b is provided on the upper surface of the 1 st grip portion 12a1 of the handle portion 12. The operation button 12b is constituted by 3 buttons of "strong", "normal", and "off", for example.

On the upper front end and the upper rear end of the main body 10,

release buttons

18a and 18b are provided to be operated when an accessory such as the extension pipe 300 is removed. By pressing the

release buttons

18a and 18b, the lock between the body 10 and the accessory can be released and the accessory can be removed from the body 10. The structure of the

release buttons

18a and 18b will be described later.

Further, an airtight holding member 90 can be attached to the distal end of the main body 10. The airtight holding member 90 has a substantially circular cylindrical body 91. The cylindrical body 91 has an elastic portion 91a formed of soft resin and looped around the distal end. The cylindrical body 91 has a connecting portion 91b formed of a material harder than the elastic portion 91a and connectable to the main body 10 on the proximal end side. The cylindrical body 91 is formed by integrating 2 members of different kinds, such as the elastic portion 91a and the connecting portion 91 b. The elastic portion 91a is made of an elastically deformable (flexibly deformable) material such as an elastic body. By attaching the airtight holding member 90 to the connection port 10a of the cleaner body 1, the entire distal end 90s of the airtight holding member 90 can be brought into close contact with the floor surface, and the suction force can be increased as compared with the case where the airtight holding member is not brought into close contact. Further, by forming the connection portion 91b of a hard material, the airtight holding member 90 can be attached in a stable state without coming off the main body 10.

In the present embodiment, the case where the elastic portion 91a is formed of an elastic material such as an elastomer is exemplified, but the present invention is not limited thereto. For example, the substantially entire cylindrical body 91 may be formed of the same material as the connecting portion 91b, and short bristles obtained by electrostatic flocking may be annularly provided at the distal end of the cylindrical body 91. With such an electrostatic flocking structure, the tip of the airtight holding member 90 can be brought into close contact with the floor surface, similarly to the elastic body, and the suction force can be increased.

A fitting groove 10b elongated in the longitudinal direction is formed in the outer side surface of the connection port 10a of the body 10. The fitting groove 10b is formed with 1 piece on each of the left and right sides. A protruding portion (not shown) that can be engaged and locked by being fitted into the fitting groove 10b in a concave-convex manner is formed at the base end of the connecting portion 91 b.

In addition, the main body 10 may be provided with a light emitting element above the connection port 10 a.

The battery 3 is a member for supplying electric power to a motor 40a (see fig. 6) of the electric fan 40 for generating suction force, and is formed of a secondary battery such as lithium ion or nickel hydrogen. The battery 3 has a substantially semi-cylindrical case 3a made of synthetic resin, and the case 3a is attached to and detached from the main body 10 by sliding in the front-rear direction.

Fig. 3 is a side view of the electric vacuum cleaner 100 in a state of fig. 2 viewed from the left side.

As shown in fig. 3, the dust box 2 is of a cyclone type, and has a function of separating air containing dust sucked from the inlet pipe 14 into dust and air, and collecting the dust. The dust box 2 is disposed in front of the motor housing portion 11 so that the axial direction is the front-rear direction, and has a substantially cylindrical housing portion 2 a. A substantially rectangular inlet 2b (see fig. 2) connected to the inlet pipe 14 is formed on the upper surface (side surface) of the dust box 2. The air containing dust flowing into the inlet 2b becomes a swirling flow, centrifugal force acts on the dust, the dust is separated into dust and air in the dust box 2, and the air from which the dust is separated is discharged from the rear (back) of the dust box 2.

A cover 2c is rotatably supported on the front surface of the dust box 2 via a hinge 2d, and the cover 2c is opened and closed when dust accumulated in the dust box 2 is discarded. A cover locking mechanism 2e for unlocking the cover 2c is provided on the upper portion of the cover 2 c. The mechanism inside the dust box 2 can be configured based on japanese patent application laid-open No. 2016 and 137165.

Fig. 4 is a perspective view of the electric vacuum cleaner of the present embodiment.

As shown in fig. 4, in the electric vacuum cleaner 100, the dust box 2 is attached below the main body 10 and in front of the motor housing 11. At this time, when the dust box 2 is attached to the cleaner body 1, the cover lock mechanism 2e is hidden on the cleaner body 1 side. This is because, when the cover lock mechanism 2e is provided on the opposite side (outer side), there is a possibility that the cover lock mechanism 2e is released during cleaning. However, by hiding the cover lock mechanism 2e from the cleaner body 1 side, it is possible to prevent an erroneous operation. For example, when cleaning a sofa or under a bed in a pole-type state, the cleaner body 1 may be made nearly horizontal with respect to the floor surface. At this time, when the cover lock mechanism 2e is provided on the front surface side, there is a possibility that the cover lock mechanism 2e is released by coming into contact with the ground. The positions of the cover lock mechanism 2e and the hinge portion 2d are not limited, and may be set to the left and right with respect to the cleaner main body 1.

The dust box 2 is detachably provided with a maintenance brush 2s (see fig. 2 and 3). The maintenance brush 2s is disposed at a position that is difficult to see from the outside when the dust box 2 is attached to the cleaner body 1. Therefore, the maintenance brush 2s is not easily detached during operation, and the maintenance brush does not need to be stored separately from the electric vacuum cleaner 100.

Fig. 5 is a plan view of the electric vacuum cleaner of the present embodiment.

As shown in fig. 5, the connecting portion 91b of the airtight holding member 90 has extending portions 91b1, 91b1 formed on both left and right sides thereof and extending rearward. In a plan view, a concave portion 91b2 is formed between the left extending portion 91b1 and the right extending portion 91b 1. The concave portion 91b2 is fitted into the front end portion 10d1 of the protruding portion 10d formed on the front end upper surface of the body 10. This enables the airtight holding member 90 to be positioned in the front-rear direction and the left-right direction with respect to the connection port 10a (see fig. 2).

The introduction pipe 14 formed in the main body 10 extends obliquely rightward and rearward and then extends downward, and is connected to the inlet 2b (see fig. 2) of the dust box 2. This can generate a swirling flow in the housing 2a of the dust box 2, and can effectively separate dust by centrifugal force.

Fig. 6 is a sectional view VI-VI of fig. 5.

As shown in fig. 6, the motor case portion 11 of the main body portion 10 houses a motor fan 40. The electric blower 40 is driven by a motor 40 a. In the motor housing portion 11, a circuit board 50 (circuit board) for controlling the cleaner body 1 is housed above the electric fan 40.

Further, the electric fan 40 and the circuit board 50 are arranged to overlap in the vertical direction. Therefore, the size of the cleaner body 1 in the front-rear direction can be reduced. In the electric blower 40, the motor housing portion 11 is formed so as to protrude toward the grip portion 12, so that the size of the main body portion 10 in the front-rear direction (overall length) can be reduced.

In addition, the electric blower 40 and the circuit board 50 are located below the 1 st grip portion 12a1 of the handle portion 12. Thus, when the user operates the electric vacuum cleaner 100 while holding the 1 st grip 12a1, the center of gravity of the electric vacuum cleaner 100 is located in the vicinity below the 1 st grip 12a 1. Therefore, when the electric vacuum cleaner 100 is used with the front end thereof facing upward, the electric vacuum cleaner 100 can be stably held.

Further, a gap 12c for inserting a hand is formed between the 1 st grip portion 12a1 and the upper surface 11c of the motor housing portion 11. Further, a gap 12d is formed between the 2 nd grip portion 12a2 and the back surface 11d of the motor housing portion 11.

In addition, the thickness T1 of the 1 st tab 12a1 is formed to be thin, and the thickness T2 of the 2 nd tab 12a2 is formed to be thicker than the thickness T1. That is, the 1 st grip 12a1 is formed to be thin, and the 2 nd grip 12a2 is formed to be thick. In this manner, when the 2 nd grip 12a2 is gripped for cleaning, the thickness T2 of the 2 nd grip 12a2 is increased, so that the grip can be easily and sufficiently gripped, and the strength of the 2 nd grip 12a2 can be increased.

The battery 3 can be formed of, for example, a lithium ion battery with high energy efficiency. The battery 3 is disposed below the 2 nd grip portion 12a2 of the handle portion 12. Since the battery 3 is provided at the rear end of the electric vacuum cleaner 100 in this manner, the center of gravity of the handle portion 12 is close to the 2 nd grip portion 12a2, and therefore, the user can feel more comfortable when the front end of the electric vacuum cleaner 100 is used upward.

In the dust box 2, a filter 5 is housed at the rear end in the axial direction of the housing portion 2 a. The filter 5 is formed by folding in a pleated manner, and the filter area can be increased and the pressure loss caused by the filter 5 can be reduced.

The filter 5 is, for example, a High-density HEPA filter (High Efficiency Particulate air filter). The HEPA filter has a particle capture rate of 99.97% or more for particles having a particle diameter of 0.3 μm at a rated air volume and a performance of 245Pa or less of an initial pressure loss.

As shown in fig. 6, the dust box 2, the motor 40a, and the battery 3 are arranged on a straight line in the longitudinal direction (front-rear direction) of the cleaner body 1. In particular, the dust box 2 and the motor 40a are disposed coaxially with each other in the longitudinal direction (front-rear direction) of the electric vacuum cleaner 100. The arrangement of the motor 40a and the battery 3 has a large space. However, since the motor 40a, the battery 3, and the dust box 2 are arranged in a straight line, the vertical width of the vacuum cleaner 100 can be made narrow, and the vacuum cleaner 100 can be made compact.

In fig. 6, an arrow F indicates the flow of air sucked into the electric vacuum cleaner 100. The air drawn into the dust box 2 enters the electric fan 40. The air passes around the motor 40a to cool the motor 40 a. Part of the air having passed through the motor 40a flows through the battery 3 to cool the battery 3. The remaining part of the air passing around the motor 40a and the air passing through the battery 3 are merged at the circuit board 50 to cool the circuit board 50, and then discharged out of the system of the cleaner 100.

At this time, since the battery 3 is disposed directly behind the motor 40a, the cooling air is easily circulated in the battery 3. This makes it possible to easily and efficiently cool the battery 3.

A circuit board housing space 50a for housing the circuit board 50 is provided in the housing at the rear of the introduction pipe 14 and above the motor 40 a. In the front portion of the vacuum cleaner 100, the introduction pipe 14 must be formed to have a certain thickness in the vertical direction in order to generate a swirling flow in the dust box 2. Therefore, even if the housing of the vacuum cleaner 100 is formed to have a certain thickness in the vertical direction to form the circuit board housing space 50a at the rear side, the vertical thickness of the vacuum cleaner 100 as a whole does not become thick. Therefore, if the circuit board 50 is housed in the circuit board housing space 50a, it is not necessary to provide a separate space for housing the circuit board 50, and thus an increase in the vertical thickness of the vacuum cleaner 100 can be suppressed.

At this time, since the arrangement position of the circuit board 50 is increased, the connection line between the circuit board 50 and the connection port 10a having the connection end with the accessory and the operation button 12b is shortened. Therefore, if the connecting line is shortened, the workability in manufacturing is improved, and the manufacturing cost of the vacuum cleaner 100 can be reduced.

Fig. 7 and 8 are enlarged sectional views of the periphery of the

release buttons

18a and 18 b. When any one of the

release buttons

18a and 18b is pressed, the connection between the attachment such as the extension pipe 300 and the standard cleaner head 400 and the cleaner main body 1 can be released. Fig. 7 shows a state in which neither the release button 18a nor the release button 18b is pressed. In this state, when the release button 18a is first pressed, the release button 18a and the base end portion 18a1 thereof are tilted forward and downward. Thereby, the predetermined lock mechanism is released, and the accessory can be removed from the cleaner body 1.

On the other hand, as shown in fig. 8, when the release button 18b is pressed, the release button 18b and the base end portion 18b1 thereof are inclined forward and downward. An elongated shaft-like member 18c is disposed between the base end portion 18a1 of the release button 18a and the base end portion 18b1 of the release button 18 b. When the base end portion 18b1 of the release button 18b is tilted forward and downward, the base end portion 18b1 pushes out one end of the shaft-like member 18c in the forward direction. As a result, the shaft-shaped member 18c moves in the forward direction, and the other end portion thereof presses the base end portion 18a1 of the release button 18a, so that the release button 18a and the base end portion 18a1 thereof are tilted forward and downward. As a result, as shown in fig. 8, the predetermined lock mechanism is released, and the airtight holding member 90 can be removed from the cleaner body 1.

By providing the release button 18b in addition to the release button 18a, the user of the electric vacuum cleaner 100 can operate the release button 18b while holding the 1 st grip 12a1, and remove the accessory from the cleaner body 1.

Fig. 9 is a side view of the electric vacuum cleaner as viewed from the right side.

Attachment and

detachment mechanisms

2g and 19 for attaching and detaching the dust box 2 to and from the cleaner body 1 are provided at the lower rear end of the dust box 2 and the lower front end of the cleaner body 1. That is, when the dust box 2 is attached to the cleaner body 1, the attachment/detachment mechanism 2g and the attachment/detachment mechanism 19 are connected by a predetermined mechanism. The attachment/

detachment mechanisms

2g and 19 extend to the lowermost part of the electric vacuum cleaner 100, and particularly, the lower end of the attachment/detachment mechanism 19 is the lowermost part of the electric vacuum cleaner 100, and a foot part 19a is provided below the attachment/detachment mechanism 19. In addition, a foot 3n is also provided at the lower end of the rearmost tail of the battery 3.

When the electric vacuum cleaner 100 is placed on the horizontal plane F with the lower side of the electric vacuum cleaner 100 facing downward, heavy components such as the motor 40a and the battery 3 may be present at the rear lower portion of the electric vacuum cleaner 100, and the electric vacuum cleaner 100 may be supported on the horizontal plane F by the

leg portions

19a and 3 h. At this time, since the leg 19a is located at the lowermost end of the electric vacuum cleaner 100 and the leg 19a is located at the middle position in the longitudinal direction of the electric vacuum cleaner 100, the front of the electric vacuum cleaner 100 placed on the horizontal plane F faces obliquely upward as shown in fig. 9. Thereby, the tip of the connection port 10a serving as a suction port is also directed obliquely upward. Thereby, the tip 90s of the airtight holding member 90 also faces obliquely upward. Therefore, in a state where the electric vacuum cleaner 100 is supported on the horizontal plane F, dust remaining inside the connection port 10a and the airtight holding member 90 is less likely to spill to the outside.

As shown in fig. 9, the battery 3 can be charged by connecting an unillustrated AC adapter to a terminal t provided on the right side portion of the cleaner body 1.

Fig. 10 is a side view of the electric vacuum cleaner of the present embodiment as viewed from the left side. FIG. 11 is a cross-sectional view XI-XI of FIG. 10.

In the housing structure of the electric vacuum cleaner 100, the housing 20 covering the motor 40a and the circuit board 50 is one housing that is flame retardant. Since the motor 40a and the circuit board 50 are not covered by the 2-and 3-heavy housing structure, the electric vacuum cleaner 100 can be reduced in weight.

Fig. 12 is a sectional view taken along line XII-XII of fig. 10.

As shown in fig. 12, the battery 3 is an assembled battery, and 5 electric cells 3h (unit cells) are arranged in the left-right direction 2 by 2 in the upper and lower directions in the

case

3a, and 1 is also arranged in the center. By arranging the cells 3h in the longitudinal direction in this manner, the width of the battery 3 can be made narrower than when the cells 3h are oriented in the lateral direction.

In the case 3a, the cell 3h is housed in a state of being held by a holding member 3j made of synthetic resin. The holding member 3j is configured to form a gap 3k between the upper layer cell 3h and the lower layer cell 3 h.

By forming such a gap 3k, air can be circulated around each cell 3h, and each cell 3h can be cooled efficiently.

Fig. 13 is a plan view of the electric vacuum cleaner in a state where the accessory is attached.

As shown in FIG. 13, the electric vacuum cleaner 100 is configured such that the extension pipe 300 can be connected in a state where the airtight maintaining member 90 is connected to the cleaner body 1. in this way, even if the airtight maintaining member 90 is connected to the cleaner body 1, the position of the connection port 10a for connecting the extension pipe 300 can be kept unchanged, and thus, the total length L for connecting the cleaner body 1, the extension pipe 300, and the standard cleaner head 400 can be kept short, and thus, the standard cleaner head 400 is positioned close to the hand, and therefore, the handleability is improved, and the convenience of use can be improved.

In the electric vacuum cleaner 100 shown in fig. 13, even if the extension pipe 300 to which the standard cleaner head 400 is connected is removed from the pole type state and is changed to a hand-held state, the state in which the air-tight holding member 90 is attached can be maintained in the cleaner main body 1. This enables cleaning with an increased suction force.

In the embodiment of fig. 13, the case where the extension pipe 300 and the standard cleaner head 400 are connected to the electric vacuum cleaner 100 is described as an example, but the present invention is not limited to this embodiment. For example, the standard suction head 400 may be directly connected to the connection port 10a and used as the vacuum cleaner 100 in a hand-held state. This improves the airtightness with the floor surface by the airtight holding member 90, thereby improving the suction force.

In this manner, in the electric vacuum cleaner 100, various accessories (accessories) can be attached and detached while maintaining the state in which the airtight holding member 90 is attached to the cleaner body 1, and cleaning can be performed by quickly switching the use mode of cleaning. Further, since the state in which the air-tightness holding member 90 is attached to the cleaner body 1 can be maintained, the electric vacuum cleaner 100 in the hand-held state in which the air-tightness holding member 90 is attached can perform cleaning with a high suction force secured.

Fig. 14 is a perspective view showing a support base of the electric vacuum cleaner. The support stand 70 shown in fig. 14 is a state in which the electric vacuum cleaner 100 and all the accessories (accessories) are removed. As shown in fig. 14, the support stand 70 is composed of a base portion 71 and an upright portion 72.

The base portion 71 has a substantially rectangular placement surface 71a on which a standard tip 400 (see fig. 1) can be placed. The placing surface 71a is provided with a locking portion 71a1, and the locking portion 71a1 is used for locking the standard suction head 400 sliding down to the front side.

The upright portion 72 extends vertically upward from an upright portion support portion 71b provided behind the mounting surface 71 a. An engaging portion 72a is provided at an upper front portion of the upright portion supporting portion 71 b.

Fig. 15 is a side view showing the electric vacuum cleaner and the support base.

As shown in fig. 15, the electric vacuum cleaner 100 is supported by the support stand 70 in a state where the extension pipe 300 and the standard cleaner head 400 are connected to the cleaner main body 1, specifically, a hook member 301 having a shape of approximately L with its front end being the lower side is provided at the front end of the extension pipe 300, the hook member 301 is engaged with an engaging portion 72a (fig. 14) of the upright portion 72 provided on the support stand 70, and the entire electric vacuum cleaner 100 can be supported by the support stand 70 with the cleaner main body 1 side being the upper side and the standard cleaner head 400 side being the lower side by engaging the engaging portion 71 a1. with the standard cleaner head 400 on the placement surface 71 a.

Since the electric vacuum cleaner 100 can be mounted on the support stand 70 in a state of holding the stick type, the electric vacuum cleaner 100 can be used in a state of directly holding the stick type at the time of the next cleaning.

The placement surface 71a of the base portion 71 is formed to extend forward of the extension pipe 300. Accordingly, the standard cleaner head 400 can be supported by the mounting surface 71a in a state where the standard cleaner head 400 is connected to the extension pipe 300, that is, in a state where the extension pipe 300 and the standard cleaner head 400 are connected to the cleaner body 1 (a pole-type state). This enables the electric vacuum cleaner 100 to be stably supported by the support base 70.

Fig. 16 is a view showing a manner of use when the electric vacuum cleaner in the stick-type state is used for cleaning the floor surface.

Fig. 16 shows a state in which the extension pipe 300 and the standard cleaner head 400 are connected to each other in the vacuum cleaner 100 (in a state in which the airtight holding member 90 is attached to the vacuum cleaner), and the vacuum cleaner 100 is extended to a position forward of the user to clean the floor. At this time, the user can move the electric vacuum cleaner 100 forward and backward to perform cleaning while holding the 2 nd grip portion 12a2 of the handle portion 12. Although not shown, when the bottom surface is cleaned with the electric vacuum cleaner 100 positioned under the left and right armpits (left and right chest sides) of the user, the user can move the electric vacuum cleaner 100 forward and backward while holding the 1 st grip portion 12a1 of the grip portion 12. In this way, when the user cleans the floor, the position of the grip portion 12 can be changed to clean the floor.

Fig. 17 is a view showing a mode of use when a high place is cleaned by the electric vacuum cleaner in the stick-type state.

In the electric vacuum cleaner having the center of gravity located at the front end side when the electric vacuum cleaner is in the pole-type state (see japanese patent application laid-open No. 2016-.

In the present embodiment, as shown in fig. 17, since the electric blower 40 (see fig. 6) and the battery 3, which are heavy components of the electric vacuum cleaner 100, are located at a position close to the grip portion 12 (a position close to the hand), the center of gravity G of the electric vacuum cleaner 100 is close to the hand of the user. Accordingly, even when the electric vacuum cleaner 100 is in the pole-type state and the electric vacuum cleaner 100 is used to clean a place higher than the floor surface, the cleaning can be easily performed, and the convenience in use can be improved. In fig. 17, the case of cleaning a step is described as an example, but the case of lifting the electric vacuum cleaner 100 to clean a panel or the like of an indoor unit of an air conditioner is also effective.

When the electric vacuum cleaner 100 is used in a stick-type state, the extension pipe 300 and the standard tip 400 are removed from the electric vacuum cleaner 100 to be held in a hand when dust remaining at a corner (corner) of a step is cleaned. In this case, since the state in which the airtight holding member 90 is attached to the electric vacuum cleaner 100 is maintained, cleaning can be performed with the suction force increased, and dust leakage can be prevented.

The present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the above-described embodiments are detailed for explaining the present invention to facilitate understanding, and are not limited to having all of the structures described.

Description of reference numerals

1 vacuum cleaner main body

2 dust box (dust collecting device)

3 accumulator

10a connection port (suction port)

14 introduction tube

40 electric fan

40a motor

50 circuit board

50a circuit board receiving space.

Claims

1. An electric vacuum cleaner, comprising:

a cleaner main body;

an electric fan housed in the cleaner body for generating an attraction force;

a motor housed in the cleaner body for driving the electric fan;

a battery mounted on the cleaner body for supplying electric power to the motor; and

a dust collecting device mounted on the cleaner body and used for collecting the dust sucked by the suction force,

the dust collecting device, the motor, and the battery are arranged on a straight line in a longitudinal direction of the cleaner body.

2. The electric vacuum cleaner of claim 1, wherein:

the dust collecting device and the motor are coaxially arranged in a longitudinal direction of the cleaner body.

3. The electric vacuum cleaner according to claim 1 or 2, wherein:

an inlet pipe which is arranged at the upper part of the dust collector main body and sends the air containing dust sucked by the suction force to the dust collector,

a circuit board housing space is provided in the housing of the electric vacuum cleaner main body at a rear portion of the introduction pipe and above the motor, and the circuit board housing space houses a circuit board for driving the vacuum cleaner main body.

4. The electric vacuum cleaner according to any one of claims 1 to 3, wherein:

the cleaner body has a suction port for sucking dust together with air at a front portion in a longitudinal direction thereof,

when the cleaner body is placed on a horizontal plane with its lower side down, the tip of the suction port faces obliquely upward.