CN112294182B

CN112294182B - Electric vacuum cleaner

Info

Publication number: CN112294182B
Application number: CN202010142046.2A
Authority: CN
Inventors: 渡部贵裕; 矢吹祐辅; 栗城润也; 小森启礼
Original assignee: Hitachi Global Life Solutions Inc
Current assignee: Hitachi Global Life Solutions Inc
Priority date: 2019-07-26
Filing date: 2020-03-04
Publication date: 2022-10-28
Anticipated expiration: 2040-03-04
Also published as: TWI736160B; JP2023010908A; JP7237767B2; CN112294182A; TW202103623A; JP2021019761A

Abstract

The invention provides an electric dust collector which can keep the state that a dust collecting device is arranged on a main body after cleaning and easily discard the garbage accumulated in a dust collecting part. The electric vacuum cleaner includes: a battery as a power source; a cleaner main body for accommodating the electric fan; and a dust collecting device and the storage battery mounted on the cleaner body, wherein the dust collecting device includes a housing having a housing opening and a cover capable of opening and closing the housing opening, and includes: a hook member capable of opening the opening of the receiving portion; an operation member operated by a user; and a cable member capable of transmitting a force applied to the operating member to the hook member.

Description

Electric vacuum cleaner

Technical Field

The present invention relates to an electric vacuum cleaner.

Background

In a rechargeable vacuum cleaner of the related art, a dust collecting device is detachably attached to a main body, and when garbage is discarded from the dust collecting device, an operation of temporarily removing a dust collecting part, placing the main body, and opening an opening of the dust collecting device is performed. In this case, the main body or the dust collecting device may be dropped and damaged.

In order to solve this problem, as shown in patent document 1, for example, a lever for opening an opening portion of the dust collecting device is provided, and the lever member is interlocked and slid by operating the operating portion, so that the dust collecting device held in a state of being attached to the main body can discard the dust.

Documents of the prior art

Patent literature

Patent document 1: japanese patent No. 4873355

Disclosure of Invention

Technical problem to be solved by the invention

However, in the method described in this document, the rod member needs to have rigidity. Therefore, it is necessary to secure a space for the rod member to enter and slide, and the body and the dust collecting device become large and the mass also increases, thereby deteriorating the operability. And is not preferable in terms of design.

In the dust collecting device having the cyclone separating device described in this document, a method is generally employed in which an air flow containing dust is rotated in the dust collecting device, and the dust is separated from the air flow by a centrifugal force generated at the time of rotation, and static electricity is generated by friction between the dust and a housing of the dust collecting device at the time of rotation. However, in the conventional electric vacuum cleaner main body and dust collecting device, a resin member is often used as an exterior member for reasons such as weight reduction, and since an insulation resistance of a general resin material is high, the electric vacuum cleaner main body or the dust collecting device is charged, and discharge occurs when a user touches the electric vacuum cleaner main body or the dust collecting device, which may cause pain to the user.

In addition, when using the electric vacuum cleaner, a user may use the electric vacuum cleaner without installing a dust collecting device. In this case, since the electric fan directly entering the electric vacuum cleaner main body does not pass through a filter of the dust collecting device or the like, dust is accumulated, and the fan may not be rotated or damaged.

The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to enable disposal of dust in a dust collecting device without using a member such as a rod or detaching the dust collecting device from a main body.

In addition, the present invention is directed to prevent static electricity generated in a dust collecting device from being charged, thereby preventing the user from being affected.

In addition, the invention aims to avoid dust suction without installing a dust collecting device and dust from entering the main body.

Means for solving the problems

The invention is an electric dust collector, characterized by comprising: a battery as a power source; a cleaner body for accommodating the electric fan; and a dust collecting device and the battery mounted on the cleaner body, the dust collecting device including a housing having a housing opening and a cover capable of opening and closing the housing opening, and including: a hook member capable of opening the opening of the receiving portion; an operation member operated by a user; and a cable member capable of transmitting a force applied to the operating member to the hook member.

Effects of the invention

According to the present invention, it is possible to provide an electric vacuum cleaner capable of discarding dust while keeping a dust collecting device attached to a main body without enlarging the main body and the dust collecting device.

Further, according to the invention described in claim 4, the static electricity generated in the dust collecting device can be discharged to the ground through the user contacting the operation member.

Further, according to the invention described in claim 5, when the dust collecting device is mounted by transmitting a signal from the control board of the main body, the member in contact with the hook member of the dust collecting device is energized via the cable member and the hook member to form a closed circuit, thereby automatically determining whether or not the dust collecting device is mounted.

Drawings

Fig. 1 (a) is a perspective view showing a state in which the electric vacuum cleaner of the present embodiment is stored in a charging stand in a rod-type state. Fig. 1 (b) is a perspective view showing a state in which the electric vacuum cleaner of the present embodiment is stored in a charging stand in a hand-held state.

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

Fig. 3 is an X-direction view of fig. 2.

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

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

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

Fig. 7 (a) is a front perspective view of the pole-type charging stand according to the present embodiment. Fig. 7 (b) is a rear perspective view of the charging stand for a pole mount according to the present embodiment.

Fig. 8 is an exploded perspective view of the pole charging stand according to the present embodiment.

Fig. 9 (a) is a front perspective view of the handheld charging stand according to the present embodiment. Fig. 9 (b) is a rear perspective view of the handheld charging stand according to the present embodiment.

Fig. 10 is an exploded perspective view of the handheld charging stand according to the present embodiment.

Fig. 11 (a) is an enlarged view of the body connecting portion of fig. 7 (a) and 9 (a). Fig. 11 (b) is an enlarged view of the body connecting portion of fig. 7 (b) and 9 (b).

Fig. 12 is a perspective view showing a state in which a main body terminal portion of the electric vacuum cleaner connected to an output plug of the AC adapter is viewed from below the dust collection housing.

Fig. 13 is an external perspective view of the AC adapter of the present embodiment.

Fig. 14 is an external perspective view showing a state in which the AC adapter of the present embodiment is connected to the electric vacuum cleaner as a single body.

Fig. 15 (a) is a perspective view showing a state in which the AC adapter 80 is attached to the holding member of the charging stand. Fig. 15 (b), 15 (c), and 15 (d) are central sectional views.

Fig. 16 is a sectional view showing a state of connection between the main terminal portion and the AC adapter output plug.

Fig. 17 is a view showing a manner of use when the electric vacuum cleaner in the stick-type state is used for cleaning the floor.

Fig. 18 is a view showing a mode of use when a stick-type electric vacuum cleaner is used to clean a high place.

Fig. 19 is an external view showing an operation portion of the cleaner body according to the present embodiment.

Fig. 20A is a side view showing the mechanism portion of the present embodiment without showing the outer contour of the main body and with the lid closed.

Fig. 20B is a side view showing the mechanism portion of the present embodiment without showing the outer contour of the main body and with the cover opened.

Fig. 21 is an exploded perspective view for showing a mechanism part of the present embodiment.

Fig. 22 is a side view of the mechanism section of the present embodiment.

Detailed Description

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

Fig. 1 (a) is a perspective view showing a state in which the electric vacuum cleaner of the present embodiment is stored in a charging stand in a stick (wand) state.

The electric vacuum cleaner 100 can be changed to a hand-held (hand-held) state, a stick-type state, or other various use states for cleaning. The charging stand 70a for housing the electric vacuum cleaner 100 is a member for housing the electric vacuum cleaner 100 in a bar-type state, and includes a base member 71, an upright member 72, and a holding member 73. The output plug 81 of the AC adaptor 80 is attached to the holding member 73, and is used to charge the battery 3 attached to the electric vacuum cleaner 100, and when the electric vacuum cleaner 100 is placed on the charging stand 70a, the output plug 81 is connected to the input socket 17b of the electric vacuum cleaner 100, and charging is enabled. In this way, the charging stand itself can be configured without providing any electric components, and cost and productivity can be suppressed from being improved. In addition, since the presence or absence of the upright member 72 does not cause a change in electrical connection, reliability of the product can be ensured.

The base member 71 has a mounting surface 71a and an extending portion 71b. The mounting surface 71a is a substantially rectangular plate-shaped portion. The extension 71b is a substantially truncated cone-shaped portion. The extension portion 71b is provided substantially perpendicular to the mounting surface 71a. The central axis of the extension portion 71b is provided so as to be located substantially at the center in the short side direction of the placement surface 71a and substantially approximately 3/4 of the length in the long side direction.

Fig. 1 (b) is a perspective view showing a state in which the electric vacuum cleaner of the present embodiment is stored in a charging stand in a hand-held state. Unlike the charging stand 70a, the charging stand 70b in this state is a member for housing the electric vacuum cleaner 100 in a hand-held state, and has only the base member 71 and the holding member 73, with the upright member 72 omitted.

As shown in fig. 2, the electric vacuum cleaner 100 includes a cleaner body 1, a dust collection case 2 (dust collection device), a battery 3 (power storage device), 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 is formed with a connection port 10a (suction port) to which an extension tube 300 (see fig. 1) or a standard tip 400 (see fig. 1) is connected. The connection port 10a is formed of the same resin as the main body portion 10, the motor housing portion 11, the handle portion 12, and the like. The connection port 10a has a substantially circular opening and is formed facing forward. The attachment 10a is capable of connecting a slit/brush replacement nozzle 110, an extension pipe 300, a standard cleaner 400, a small cleaner 600, a broom-type cleaner 700, and the like (hereinafter, collectively referred to as "accessories" in some cases) as accessories.

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

The motor case portion 11 incorporates a motor fan 40 (see fig. 6) and a main body board 50 (see fig. 6). A circular suction port 11a is formed in the front surface of the motor housing portion 11, and sucks in clean air collected by the dust collection box 2. Further, a main body terminal portion 17 connected to the charging stand 70 is provided on the front surface of the motor housing portion 11 at a position lower than the inlet portions 36796 and 11 a.

The grip portion 12 is provided on the rear side of the main body portion 10 and is formed in a substantially arc shape. The handle portion 12 is formed in a substantially arc shape, and can be used in a state of being used by a user, and in a position where the user can hold the handle portion 12 which is easy to use.

Further, a lock member 13 for locking the battery 3 is provided in the handle portion 12. The lock member 13 is formed in a push button type and is supported swingably.

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

A release button 18 that is operated when an accessory such as an extension pipe 300 (see fig. 1) is removed is provided on the upper end of the main body 10. By pressing the release button 18, the lock between the body 10 and the accessory can be released, and the accessory can be removed from the body 10.

Further, an airtight holding member 90 is 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 in an annular shape on the distal end side. 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 at the proximal end. The cylindrical body 91 is formed by integrally molding 2 different members, i.e., the elastic portion 91a and the connecting portion 91b. 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 to the main body 10 in a stable state without coming off.

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, substantially the entire part of the cylindrical body 91 may be formed of the same material as the connecting portion 91b, and short bristles of electrostatic flocking may be annularly provided at the distal end of the cylindrical body 91. In such a member having electrostatic flocking, the tip of the airtight holding member 90 can be brought into close contact with the floor surface, similarly to the elastic member, thereby improving the suction force.

A longitudinally elongated fitting groove 10b is formed in the outer surface of the connection port 10a of the body 10. The fitting grooves 10b are formed in 1 piece on each of the left and right sides. A projection (not shown) that is engaged and engaged with the fitting groove 10b in a concavo-convex manner is formed at the base end of the connecting portion 91b.

In addition, the main body 10 is provided with a light emitting element 10c (see fig. 2) above the connection port 10 a. The light emitting element 10c is configured to emit light toward the front, i.e., a surface to be cleaned (such as a floor surface). The distal end surface 10c1 of the light-emitting element 10c is located at a position substantially flush with (on the same plane as) the distal end 10a1 of the connection port 10 a.

The battery 3 is a member for supplying electric power to the electric fan 40 (see fig. 6) and the like, and is composed of a secondary battery such as a lithium ion battery or a nickel hydride battery. The battery 3 has a substantially semi-cylindrical case 3a made of synthetic resin, and is detachable from the body 10 by sliding the case 3a in the front-rear direction.

A terminal portion 3b connected to the main body portion 10 is provided on the upper surface of the housing 3a. Further, a slide groove 3c slidably supported by the body portion 10 is formed in front of the terminal portion 3b on the upper surface of the housing 3a. Further, on the upper surface of the housing 3a,

slide rails

3d, 3d slidably supported by the body portion 10 are formed to protrude rearward of the terminal portion 3b to the left and right sides.

An introduction hole 3e for introducing cooling air for cooling the battery 3 is formed in the front surface of the housing 3a on one side (left side) in the left-right direction (width direction). The introduction hole 3e is formed to be elongated in the vertical direction.

Further, a discharge hole 3f for discharging air after cooling the battery 3 is formed in the other side (right side) in the left-right direction (width direction) on the front surface of the case 3a. The discharge hole 3f is formed to have a shape bilaterally symmetrical to the introduction hole 3e.

Further, a lock recess 3g for fitting and fixing the lock member 13 to the main body 10 is formed in the rear surface of the housing 3a.

Fig. 3 is a view in the X direction of fig. 2.

As shown in fig. 3, the dust box 2 is a cyclone dust box, and has a function of separating air containing dust sucked from the inlet pipe 14 from the air and collecting the dust. The dust box 2 is disposed in front of the motor housing 11 so that the axial direction is the front-rear direction, and has a substantially cylindrical housing portion 2a. The housing 2a has a housing opening on the front surface. In addition, 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 forms a cyclone, centrifugal force acts on the dust, the dust and the air are separated from each other 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 lid 2c is rotatably supported by the housing 2a via a hinge 2d on the front surface of the dust box 2, and the lid 2c can be opened and closed when dust accumulated in the dust box 2 is discarded. The storage opening is closed by closing the lid 2c. Further, a cover locking mechanism 2e for releasing the locking of the cover 2c is provided on the upper portion of the cover 2c. The mechanism inside the dust collection housing 2 can be configured based on japanese patent application laid-open No. 2016-137165.

An exhaust port 16 is provided at a lower portion of the motor case portion 11. The exhaust port 16 has a plurality of slits 16a along the front-rear direction, and the plurality of slits 16a are formed in a vertically aligned manner. Although not shown, the exhaust ports 16 are provided on both the left and right sides.

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 (outside), the cover lock mechanism 2e may be released during cleaning, and the cover lock mechanism 2e is hidden on the cleaner body 1 side, thereby preventing 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. In this case, when the cover lock mechanism 2e is provided on the outer side, the cover lock mechanism 2e may be released by coming into contact with the floor surface. The positions of the cover lock mechanism 2e and the hinge portion 2d are not limited to this, and may be provided on the left and right sides of the cleaner body 1.

In addition, a maintenance brush 2s (see fig. 2 and 3) is detachably provided in the dust box 2. 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 2s does not need to be stored in a place other than the electric vacuum cleaner 100.

When the air-tightness maintaining member 90 is attached to the cleaner body 1, the light emitting element 10c is covered with the air-tightness maintaining member 90. In other words, the inner diameter of the airtight holding member 90 is set so that the light emitting element 10c is positioned inside the airtight holding member 9.

Fig. 20A is a side view showing the mechanism portion of the present embodiment without showing the outer contour of the main body and with the cover closed. Fig. 20B is a side view showing a state in which the cover is opened without showing the outer contour of the main body in order to show the mechanism portion of the present embodiment. Fig. 21 is an exploded perspective view for illustrating a mechanism portion of the present embodiment. Fig. 22 is a side view of the mechanism section of the present embodiment.

A hook member (hook portion) 60 is provided at a lower front portion of the main body 10 at a position abutting against a cover lock release button 2f of a cover lock mechanism 2e provided in the dust box 2 when the dust box 2 is attached to the main body 10. The hook member 60 is configured such that the bearing portion 60a of the hook member 60 is fitted to the projection 10e provided in the body case 10 d. The hook member 60 is provided with a spring housing 60b to which a coil torsion spring (elastic member) 61 is attached, and is held by the hook member 60 and the projection 10e. One end 61a of the coil torsion spring 61 is received by the flat surface portion 10f of the body portion 10, and the other end 61b of the coil torsion spring 61 is received by the stepped portion Xb of the hook member 60. The hook member 60 is provided with a groove 60c for hooking the distal end 62a of the cable (cord) member 62. The cable member 62 is not a member having no deflection like a rod shape but a member having a deflection. Such as a string. Accordingly, when a tensile force is applied to the cable member 62, the hook member 60 rotates, the coil torsion spring 61 is twisted, the step Xb of the hook member 60 receives a force of return of the coil torsion spring 61, and when the tensile force of the cable member 62 is eliminated, the hook member 60 returns to its original position by the return force of the coil torsion spring 61.

An operating member 63 for rotating the hook member 60 is provided below the handle portion 12 and above the motor housing portion 11. The claw 63a of the operating member 63 is hooked in the groove 11b of the motor housing portion 11, and the operating member 63 is configured to be slidable. The operating member 63 is provided with a groove 63b for hooking the rear end 62b of the cable member 62, and when a pulling force is applied to the operating member 63c, the operating member 63 slides, the cable member 62 is pulled, the hook member 60 is rotated, and the lid lock release button 2f is pressed, so that the lid 2c of the dust box 2 can be opened.

Here, by setting the length of the cable member 62 to be longer than the distance between the groove portion 60c and the groove portion 63b, it is possible to adjust the position at which the cable member 62 is pulled when the operating member 63 is pulled, and even if the operating member 63 is erroneously touched when an operation is not intended, there is a "margin" until the mechanism actually operates.

The operation member 63 is provided in a range that a user can reach by protruding a finger from a state of holding the grip portion 12. Therefore, when the user opens the lid 2c of the dust box 2, the user can discard the garbage stored in the dust box 2 by operating the main body 10 with only one hand holding the handle 12.

In the present embodiment, the hook member 60 is rotated in the same direction as the operation direction of the operation member 63, whereby the cover 2c of the dust box 2 can be opened. The operation direction of the hook member 60 and the operation member 63 may be different from each other in terms of the effect of the present invention. However, when the hook member is operated in a different direction, a conversion mechanism is required to transmit the force of the operating member 63 to the hook member 60, and the number of components increases. Therefore, the transmission of force can be made easier by operating in the same direction.

A compression coil spring 64 may be provided between the operation member 63 and the spring seat 11 of the motor housing portion 11. Thus, when the operating member 63 is slid by applying a tensile force, the operating member 63 receives the force restored by the compression coil spring 64, and slides to restore the original position. In this case, when the stroke of the operating member 63 is longer than the free length of the compression coil spring 64, a sliding range in which the restoring force of the compression coil spring 64 is not received when the operating member 63 is pulled can be formed. Accordingly, when a finger acts on the operation member 63 to pull the operation member 63 during cleaning, more operation force is required from the middle of sliding the operation member 63, and the user can notice that an erroneous operation has been performed.

The coil torsion spring 61 and the compression coil spring 64 are attached to both the hook member 60 and the operation member 63, and the force for opening the cover 2c of the dust box 2 is equal to or greater than the body mass, and thus, for example, when the user opens the handle portion 12 with fingers placed on the operation member 63 and applies a load of the body mass to the operation member 63, the cover 2c of the dust box 2 is not opened.

Both ends of the cable member 62 are hooked on the hook member 60 and the operating member 63, and the tensile force applied to the operating member 63 is transmitted to the hook member 60. The cable member 62 is formed of polyester or the like into a string shape. Thus, the cable member 62 has a higher degree of freedom of shape than a resin mold product or the like, and can be easily arranged without enlarging the cleaner body 1. The method of hooking the both ends 62a and 62b of the cable member 62 to the hook member 60 and the operating member 63 may be selected freely in consideration of the shape of the members, the assembling workability, and the like, such as knotting and forming a loop.

Further, if the cable member 62 is made of a material having a high melting temperature (for example, polyester) and the hook member 60 and the operating member 63 are made of a material having a low melting temperature (for example, acrylonitrile butadiene styrene), the cable member 62 can be integrally molded and the cable member 62 can be prevented from coming off the hook member 60 and the operating member 63. Therefore, the cable member 62 can be omitted from the mounting work, and can be prevented from coming off by external force or the like after the assembly when moved after the mounting work.

In addition, the use of the cable member 62 enables electrostatic discharge generated by the cleaner main body. In this case, the cable member 62 is made of a conductive material. The hook member 60, the operating member 63, and the lid lock release button 2f provided in the lid lock mechanism 2e of the dust box 2 are made of a resin material into which an antistatic agent or the like is mixed. When the user touches the operation member 63 while using the electric vacuum cleaner, static electricity generated in the dust box 2 by the sucked dust flows to the operation member 63 through the lid lock release button 2f, the hook member 60, and the cable member 62, which are not easily electrified (have low resistance). The static electricity flowing to the operation member 63 is discharged to the floor via the human body, so that the amount of charge of the cleaner body is reduced, and the impact and the like due to the static electricity can be avoided.

The cable member 62 is constituted by a 2-core lead wire or the like, is hooked to the operation portion, and is connected at its rear end to the main body board 50. The hook member 60 is provided with 2 metal pieces, and the metal pieces are made of a material having a high resistance such as resin, and are connected to the tip ends of the cable members 62. The lid lock release button 2f has a conducting portion at a portion where the 2 metal pieces of the hook member 60 abut. With this configuration, the electric signal emitted from the main body substrate 50 is transmitted to the lid lock release button 2f via the cable member 62 and the hook member 60. The electrical signal flows through the other of the hook member 60 and the cable member 62 and is conducted to the body substrate 50, thereby forming a closed circuit. Thereby, the main body base plate 50 can determine whether or not the dust box 2 is attached to the cleaner main body 1. With this configuration, control such as disabling the electric vacuum cleaner when the dust box 2 is not attached can be performed, and the electric vacuum cleaner can be prevented from being erroneously operated in a state where the dust box 2 is not attached, and dust can be prevented from entering the cleaner body 1.

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 extending rearward on both left and right sides. A concave portion 91b2 is formed between the left extending portion 91b1 and the right extending portion 91b1 in a plan view. The concave portion 91b2 is fitted to a front end portion 10d1 of a protruding portion 10d formed on the front end upper surface of the main 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 body 10 extends obliquely rearward to the right 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 collection box 2, and can efficiently separate dust by centrifugal force.

The respective widths of the dust box 2 and the battery 3 are formed to be slightly shorter than the width W of the main body 10. In other words, the dust box 2 and the battery 3 are configured not to protrude from the side of the body 10. Accordingly, the user can smoothly move the electric vacuum cleaner 100 in the front-rear direction regardless of whether the user holds the electric vacuum cleaner with the left or right hand to perform cleaning, and the usability can be improved.

Fig. 6 is a sectional view VI-VI of fig. 5. Fig. 6 shows a state where the air-tightness maintaining member 90 is removed from the electric vacuum cleaner 100.

As shown in fig. 6, the motor case portion 11 of the main body portion 10 houses a motor fan 40. Further, a main body board 50 (control board) for controlling the cleaner body 1 is housed in the motor housing portion 11 below the electric fan 40.

The electric fan 40 is disposed horizontally (horizontally) so that the rotary drive shaft 40a faces the front-rear direction. The air discharged from the electric fan 40 flows to the main body board 50 disposed below the electric fan 40, and cools the main body board 50. In addition, a part of the air after cooling the main body substrate 50 cools the battery 3.

The main body substrate 50 includes an upper substrate 50a and a lower substrate 50b which are arranged in a manner divided into 2 layers in the vertical direction, and various components are mounted mainly on the surfaces (the lower surface of the upper substrate 50a and the upper surface of the lower substrate 50 b) which face each other. Almost all of the air discharged from the electric fan 40 flows so as to cool components (heat generating components) arranged opposite to each other on the respective main substrates 50. The main body board 50 is covered with a flame-retardant resin case 51, and the air (air) discharged from the electric fan 40 flows from the rear side to the front side in the resin case 51, passes under the bottom surface of the resin case 51, and flows toward the battery 3.

Further, the electric fan 40 and the main body board 50 are arranged to overlap in the vertical direction. Therefore, the dimension in the front-rear direction can be shortened. Further, the electric fan 40 is formed such that the motor case portion 11 bulges toward the handle portion 12 side, and thus the size of the body portion 10 in the front-rear direction (overall length) can be reduced.

Further, the electric fan 40 and the main body board 50 are located below the 1 st grip portion 12a1 of the grip portion 12. Thus, when the user operates the grip 12a1, the center of gravity of the electric vacuum cleaner 100 is located in the vicinity of the lower side of the 1 st grip 12a1, and therefore, when the electric vacuum cleaner 100 is used with the tip end thereof facing upward, the electric vacuum cleaner 10 can be stably held.

Further, a gap 12c having a width H1 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 slit 12d having a width H2 larger than the width H1 is formed between the 2 nd grip portion 12a2 and the back surface 11d of the motor housing portion 11. In this way, since the 1 st grip portion 12a1 can be held in an outstretched state when gripping and cleaning, the electric vacuum cleaner 100 can be moved forward and backward without strongly gripping the 1 st grip portion 12a. Further, when cleaning is performed by gripping the 2 nd grip portion 12a2, since it is necessary to insert a hand (fingers) deeply into the slit 12d and strongly grip it, the width H2 is formed to be larger than the width H1, and thus the 2 nd grip portion 12a2 can be stably gripped.

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

The battery 3 is constituted by, for example, a lithium ion battery having 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 grip portion 12 is closer to the 2 nd grip portion 12a2, and thus, when the electric vacuum cleaner 100 is used with the front end thereof facing upward, the operational feeling can be reduced.

The lock member 13 has a push button type operation portion 13a formed at a rear end portion. The operating portion 13a includes an arm portion 13b extending forward, and the tip of the arm portion 13b is supported by the main body portion 10. The arm portion 13b is biased downward by a spring 13 c. Thus, when the lock member 13 is fitted into the lock recess 3g and locked, the operation portion 13a does not fall off from the lock recess 3g. When the battery 3 is detached from the main body 10, the operating portion 13a can be pulled out of the locking recess 3g by pressing the operating portion 13a while receiving a repulsive force of the urging force of the spring 13.

By configuring the battery 3 to be detachable in this manner, replacement of the battery 3 becomes easier as compared with a case where the battery is not detachable. Further, by selectively preparing the spare battery 3 and the charging box capable of charging the spare battery 3, when the main body side battery of the electric vacuum cleaner 100 is exhausted, the spare battery 3 is replaced, and the cleaning time can be extended. By adopting such a configuration, it is effective in cleaning a large-area floor such as a shop.

As shown in fig. 6, when a surface passing through the front end face of the connection port 10a of the body portion 10 is R1, the front end 2f of the dust box 2 is configured to be substantially flush with (flush with) the surface R1 (a surface extending in the vertical direction with respect to the paper surface). Further, the front end 2f of the dust box 2 does not protrude forward from the surface R1. Thus, even when cleaning is performed with the air-tightness holding member 90 not attached to the cleaner body 1, cleaning can be performed while the distal end of the connection port 10a is in contact with a hard floor surface such as a floor.

In the dust box 2, a filter 5 is housed at the rear end in the axial direction of the housing portion 2a. The filter 5 is configured to be folded into a corrugated shape, so that the filter area can be increased and the pressure loss due to the filter 5 can be reduced.

The Filter 5 is made of, for example, a High-density HEPA Filter (High Efficiency Particulate Air Filter). The HEPA filter is an air filter having a particle trapping rate of 99.97% or more with respect to particles having a particle diameter of 0.3 μm and an initial pressure loss of 245Pa or less.

Fig. 7 (a), 7 (b), 9 (a), and 9 (b) are perspective views of charging stand 70a and charging stand 70b with electric vacuum cleaner 100 of the present embodiment removed, and fig. 8 and 10 are exploded views, respectively. The connecting portion between the base member 71 and the upright member 72 and the connecting portion between the upright member 72 and the holding member 73 are formed in the same shape, and can be assembled and disassembled. That is, the base projection-shaped portion 71c of the base member 71 described later has the same shape as the upright projection-shaped portion 72b of the upright member 72, and the recessed portion 72h of the upright member 72 has the same shape as the recessed portion 73h of the holding member 73.

The base member 71 has a substantially rectangular placement surface 71a on which a standard tip 400 (see fig. 1) is placed. The base member 71 has an extending portion 71b extending upward at a position substantially at the center in the width direction (left-right direction) and substantially about 3/4 of the length direction (front-rear direction). A base projection-shaped portion 71c to which the standing member 72 or the holding member 73 can be selectively attached is provided at the front end of the extension portion 71b. Further, the base member 71 is provided with a weight 75 (not shown) therein so that the charging stand 70 does not fall down when the electric vacuum cleaner 100 is mounted on the charging stand 70.

The upright member 72 is formed in a substantially cylindrical shape, and a concave portion 72h that fits into the base projection 71c of the base member 71 is formed at the lower end portion. The upper end portion is provided with an upright projection-shaped portion 72b to which the holding member 73 can be attached, which is the same shape as the base projection-shaped portion 71c provided at the upper end of the base member 71.

By connecting the upright member 72, the holding member 73, and the base member 71, which are configured as described above, as shown in fig. 7, the base member 71 forms a continuous surface with the upright member 72 and the holding member 73, and the charging stand 70 having a good appearance can be obtained.

Further, by connecting the holding member 73 and the base member 71, as shown in fig. 9, the holding member 73 and the base member 71 form a continuous surface, and a charging stand having a good appearance can be obtained.

That is, the charging stand 70a and the charging stand 70b are an AC adapter 80 for charging the battery 3 of the cleaner body 1 and a member to which the AC adapter 80 is detachably attached, and two configurations of a combination of the base member 71, the upright member 72, and the holding member 73, such as the charging stand 70a, and a combination of the base member 71 and the holding member 73, such as the charging stand 70b, can be selectively used. It is possible to provide an electric vacuum cleaner capable of selecting a storage mode at the time of charging according to a use state of the electric vacuum cleaner 100 in which the electric vacuum cleaner 100 is mainly used in a hand-held state or in a stick-type state.

The upright member 72 may be divided into a plurality of members. In this case, it is possible to provide the electric vacuum cleaner having the charging stand capable of selecting a desired height.

The holding member 73 may be provided with a hole that can be fixed to a wall surface with a screw or the like.

Fig. 11 (a) and 11 (b) are enlarged views of the mounting portion of the output plug 81 of the AC adapter 80 of the holding member 73. An opening 73i to which the output plug 81 of the AC adapter 80 can be attached is provided in the upper surface 73b of the holding member 73, and the electric vacuum cleaner 100 can be used as a charging stand by attaching the output plug 81. The output plug 81 is attached so as to protrude upward from the upper surface 73b of the holding member 73, and has guide portions 73a of a substantially rectangular parallelepiped shape on the left and right sides thereof for guiding when the main body is attached. The guide portion 73a is configured to prevent a load from being applied to the output plug 81. The guide portion 73a has a chamfered portion formed at the front end.

Further, a substantially rib-shaped guide portion 73e is formed on the front surface 73d of the holding member 73. The guide portion 73e is a member that guides the cleaner body 1 (see fig. 2) to the output plug 813 and prevents the cleaner body 1 from falling down, and is formed to protrude forward from both end edge portions of the front surface 73 d. Further, a projection 73f is provided at the lower portion thereof, and is configured to be fitted to the bottom of the dust box 2 attached to the cleaner body 1, thereby preventing the cleaner body 1 from falling down.

Fig. 12 is a perspective view showing a main body terminal portion of the electric vacuum cleaner connected to the output plug 81 of the AC adapter 80, viewed from the bottom of the dust collection box.

As shown in fig. 12, a fitting recess 17a into which a guide portion 73a (see fig. 20) of the charging stand 70 is fitted is formed in the main body terminal portion 17 of the cleaner main body 1. An input jack 17b connected to an output plug 81 of the AC adapter 80 is disposed at the center in the fitting recess 17a. The input socket 17b is connected to a terminal (not shown) connected to the terminal portion 3b of the battery 3 by a lead wire (not shown).

Fig. 13 is an external view of the AC adapter 80. Further, in the present embodiment, a type in which the AC adaptor is directly connected to the outlet is adopted, but a type in which the AC adaptor 80 main body is connected to the outlet via a plug-equipped cable may be used.

Fig. 14 is an external view showing a state in which the AC adapter 80 is directly connected to the electric vacuum cleaner for charging. With such a configuration, charging can be performed in a space-saving manner even when there is no place to place the charging stand.

Fig. 15 (a) is a perspective view showing how the AC adapter 80 is attached to the holding member of the charging stand, and fig. 15 (b), 15 (c), and 15 (d) are central sectional views.

The user lowers the cleaner body 1 from above the output plug 81 by lowering the cleaner body 1 downward, and connects the body terminal portion 17 to the output plug 81. In this case, since the output plug 81 is formed upward, the main body terminal portion 17 can be reliably connected to the output plug 81 by the self weight of the electric vacuum cleaner 100.

Fig. 16 is a sectional view showing a state of connection between the main body terminal portion and the output plug 81. When the guide portion 73a of the charging stand 70 is fitted into the fitting recess 17a of the main body, the output plug 81 located at the center thereof is fitted into the input socket 17b, and the AC adaptor 80 is electrically connected to the electric vacuum cleaner 1. While the cleaner body 1 is attached to the charging stand 70, the battery 3 can be continuously charged while the output plug 81 is in contact with the input socket 17b.

Further, since the output plug 81 is fitted to the main body terminal portion 17 in a concave-convex manner, even if the user contacts the cleaner main body 1 during charging, for example, the conductive state (contact state) between the main body terminal 17d and the terminal 73c is not released.

In the charging stand 70 configured as described above, since the output plug 81 is formed on the upper surface 72b of the upright member 72, when the main body terminal portion 17 is attached to the output plug 81, the main body terminal portion 17 is positioned close to the line of sight of the user, and therefore, the main body terminal portion 17 can be easily inserted into the output plug 81, and the cleaner main body 1 can be easily installed on the charging stand 70.

In charging stand 70, output plug 81 is formed on upper surface 72b of upright member 72. That is, since the output plug 81 is formed at a position higher than the floor surface, dust is less likely to accumulate on the output plug 81, and the adhesion of dust rising from the floor surface can be reduced.

In the electric vacuum cleaner 100 placed on the charging stand 70, since the output plug 81 is located at a position close to the center of gravity of the electric vacuum cleaner 100 (the position of the electric blower 40 and the battery 3), the portion near the center of gravity is received by the output plug 81, and the cleaner body 1 can be stably held on the charging stand 70 during charging.

Further, since the electric vacuum cleaner 100 can be charged with the dust box 2 removed by placing it on the charging stand 70, the dust box 2 can be charged even during the cleaning and drying process.

The output plug 81 is directed upward, and the main terminal portion 17 is connected to the output plug 81 from above. Accordingly, the self weight of the electric vacuum cleaner 100 can be mainly applied to the output plug 81, and therefore, the main body terminal portion 17 can be more reliably connected to the output plug 81.

Grooves

72g and 73g through which the output cable 82 of the AC adapter 80 can be routed are provided on the back surfaces of the upright member 72 and the holding member 73.

Although not shown, the charging stand 70 can store and charge the electric vacuum cleaner 100 with the standard cleaner head 400 or other accessories connected thereto.

Further, the charging stand 70 can be used as a stand (stand) for housing the electric vacuum cleaner 100 even when the AC adaptor 80 is not connected and the battery 3 is not charged.

In addition, in a state where the electric vacuum cleaner 100 is stored in the charging stand 70, the battery 3 is positioned at the upper end, and the lock member 13 is positioned at the upper end of the battery 3, so that the battery 3 can be easily attached and detached.

In other words, in the cleaner housing base capable of housing the cleaner, the cleaner housing base has the base member 71, the upright member 72, and the holding member 73, and the cleaner housing base in a state in which only the base member 71 and the holding member 73 are connected can house the cleaner in the first state (the hand-held state), and the cleaner housing base in a state in which the base member 71, the upright member 72, and the holding member 73 are connected is a cleaner housing base capable of housing the cleaner in the second state (the pole state), and it is possible to provide the electric cleaner in which the housing manner at the time of housing is selected in accordance with the use state of the electric cleaner 100.

Fig. 17 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. 17 shows a state in which the extension pipe 300 and the standard cleaner head 400 are connected to each other in the electric vacuum cleaner 100 (with the airtight maintaining member 90 attached) to form a stick type, and the electric vacuum cleaner 100 is extended forward from the user to clean the floor surface. At this time, the user can move the vacuum cleaner 100 forward and backward to perform cleaning while holding the 2 nd grip portion 12a2 of the grip portion 12. Although not shown, when cleaning the floor surface with the electric vacuum cleaner 100 positioned on the left and right sides of the user, the user can move the electric vacuum cleaner 100 forward and backward while holding the 1 st holding part 12a1 of the grip part 12. In this way, the user can perform cleaning by changing the position of the handle 12 when cleaning the floor surface.

Fig. 18 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 positioned on the front end side in the stick-type state (see japanese patent application laid-open No. 2016-137165), when the electric vacuum cleaner is used to clean a place higher than the floor surface, the user needs to lift the front end of the electric vacuum cleaner upward, which tends to cause a burden on the wrist.

In the present embodiment, as shown in fig. 18, the electric fan 40 (see fig. 6), which is a heavy object of the electric vacuum cleaner 100, and the battery 3 are located at positions close to the handle portion 12 (positions close to the hand), and therefore the center of gravity G of the electric vacuum cleaner 100 is close to the hand of the user. Thus, even when the electric vacuum cleaner 100 is formed in a pole-type state and the electric vacuum cleaner 100 is used to clean a place higher than the floor surface, cleaning is easy and usability can be improved. Fig. 18 illustrates a case where cleaning is performed on a step, and is also effective when the electric vacuum cleaner 100 is lifted up to clean a panel of an indoor unit of an air conditioner.

Description of reference numerals

1. Vacuum cleaner main body

2. Dust collecting box (dust collecting device)

3. Accumulator (storage battery)

3e lead-in hole

3f discharge hole

3h, 3h1, 3h2 single cell (cell)

10. Main body part

10a connection port (suction port)

10c light emitting element

11. Motor casing

11s leading-out hole

12. Handle part

40. Electric fan

50. Main body substrate (control substrate)

60. Hook component

61. Helical torsion spring

62. Cable component

63. Operating member

64. Compression coil spring

70. Charging stand

80 AC adapter

90. Airtight holding member

100. Electric vacuum cleaner

110. Gap/brush replacement nozzle (fittings, accessories)

300. Extension pipe (fittings, accessories)

400. Standard suction head (fittings, accessories)

600. Small suction nozzle (fittings, accessories)

700. Broom type suction head (fittings, accessories)

800. Extension hoses (fittings, accessories).

Claims

1. An electric vacuum cleaner, characterized in that:

the method comprises the following steps: a storage battery as a power source; a cleaner body for accommodating the electric fan; and a dust collecting device mounted on the cleaner body,

the dust collecting device comprises a containing part with an opening of the containing part and a cover capable of opening and closing the opening of the containing part, and comprises: a hook member capable of opening the opening of the storage part; an operation member operated by a user; and a cable member capable of transmitting a force applied to the operating member to the hook member,

the cable member has conductivity, and a conducting portion is provided on a member which the hook member of the dust collecting device contacts, and the cable member is connected to a control board built in the vacuum cleaner main body.

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

the cable member is hooked on a part of the operating member and the hook member.

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

the cable member is formed integrally with at least one of the operating member and the hook member.

4. The electric vacuum cleaner as set forth in claim 1 or 2, wherein:

the cable member, the hook member, the member to which the hook member of the dust collecting device is in contact, and the operating member are each formed of a material having electrical conductivity.