CN112294178B

CN112294178B - Electric vacuum cleaner

Info

Publication number: CN112294178B
Application number: CN202010141935.7A
Authority: CN
Inventors: 栗城润也; 小森启礼; 矢吹祐辅; 渡部贵裕
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: 2023-01-31
Anticipated expiration: 2040-03-04
Also published as: JP2021019762A; JP7398535B2; JP7157017B2; CN112294178A; JP2022173577A

Abstract

The invention provides an electric dust collector, which can keep the state that a dust collecting device is installed on a main body after cleaning and can easily discard the garbage accumulated in a dust collecting part. The electric dust collector of the invention comprises: an electric fan driven by a power supply; a cleaner main body for housing the electric fan; and a dust collecting device mounted to the cleaner body, the dust collecting device including: a housing section having an opening; a lid attached to the storage section and capable of opening and closing the opening; and a cover locking mechanism for locking the cover by closing the opening, wherein the cleaner main body comprises: a claw portion capable of releasing the cover locking mechanism; an operation member operated by a user; a cable member that transmits a force operated by the operating member to the claw portion; and an elastic member for urging the operation member and the claw portion in a direction to return to their original positions.

Description

Electric vacuum cleaner

Technical Field

The present invention relates to an electric vacuum cleaner.

Background

In a conventional rechargeable vacuum cleaner, 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 an operation 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 document

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 or the dust collecting device becomes large and the mass also increases, thereby deteriorating the operability. And is not preferable in terms of design.

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 the like and without detaching the dust collecting device from a main body.

Means for solving the problems

The invention is an electric dust collector, comprising: an electric fan driven by a power supply; a cleaner body housing the electric blower; and a dust collecting device mounted to the cleaner body, the dust collecting device including: a housing section having an opening; a lid attached to the storage section and capable of opening and closing the opening; and a cover locking mechanism for locking the cover so that the opening is closed, the cleaner main body including: a claw portion capable of releasing the cover locking mechanism; an operation member operated by a user; a cable member that transmits a force operated by the operating member to the claw portion; and an elastic member for urging the operation member and the claw portion in a direction to return to their original positions.

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 increasing the size of the main body and the dust collecting device.

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 pole-type charging stand according to the present embodiment.

Fig. 8 is an exploded perspective view of the charging stand for a pole of 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 charging stand for a hand-held device 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 from the dust box side.

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 where the AC adaptor 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 body 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 the electric vacuum cleaner in a stick-type state is used for cleaning 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 (stick) 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 pole-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 component, and cost and productivity can be suppressed. 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), a standard tip 400 (see fig. 1), and the like are 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 to face 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 suction port 36796.

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 main body 10 and the accessory can be released, and the accessory can be removed from the main 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 at the proximal end side and connectable to the main body 10. 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 forward, i.e., toward a surface to be cleaned (e.g., a floor surface). The front end surface 10c1 of the light-emitting element 10c is located at a position substantially flush with (on the same plane as) the front 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 project laterally and laterally rearward of the terminal portion 3b.

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 symmetrical to the introduction hole 3e.

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 with the axial direction being the front-rear direction, and has a substantially cylindrical housing 2a. 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 cover 2c is rotatably supported on the front surface of the dust box 2 via a hinge portion 2d, and the cover 2c can be opened and closed when dust accumulated in the dust box 2 is discarded. 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 vertical direction. 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 a sofa or a bed is cleaned in a bar-type state, the cleaner body 1 may be brought close to horizontal with respect to the floor surface. At this time, when the cover lock mechanism 2e is provided on the outer 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 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 airtight holding member 90 is attached to the cleaner body 1, the light emitting element 10c is covered with the airtight holding member 90. In other words, the inner diameter of the airtight holding member 90 is set so that the light emitting element 10c is located 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 part 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 fitted with the bearing portion 60a of the hook member 60 in the projection 10e provided in the main 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 thereto, 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 lid 2c of the dust box 2 is equal to or greater than the body mass, and therefore, for example, when the user releases the handle portion 12 with fingers on the operation member 63 and applies a load of the body mass to the operation member 63, the lid 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 freely selected in consideration of the shape of the member, 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 work of attaching the cable member 62 can be omitted, and the cable member can be prevented from falling off by external force or the like after assembly when moved after attachment.

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 operating member 63 while using the vacuum cleaner, static electricity generated in the dust box 2 by the dust attracted by the user flows to the operating member 63 through the lid lock release button 2f, the hook member 60, and the cable member 62, which are not easily electrified (low in 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 has its rear end connected 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 conductive 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 conducted to the lid lock release button 2f via the cable member 62 and the hook member 60. The electric signal flows through the other of the hook member 60 and the cable member 62 and is conducted to the main body substrate 50, thereby constituting a closed circuit. This allows the main body base plate 50 to determine whether or not the dust box 2 is attached to the cleaner 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 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 main 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 main body 1 is housed in the motor case 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. Further, 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 the 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 blower 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 near 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 100 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 gap 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 holding the 1 st grip portion 12a1 strongly. Further, when cleaning is performed by gripping the 2 nd grip portion 12a2, since it is necessary to insert a hand (finger) deeply into the slit 12d and strongly grip it, the width H2 is formed to be wider 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 thin, and the 2 nd grip portion 12a2 is formed 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. As described above, since the battery 3 is provided at the rear end of the electric vacuum cleaner 100, the center of gravity of the grip portion 12 is closer to the 2 nd grip portion 12a2, and thus the operation feeling can be lightened when the front end of the electric vacuum cleaner 100 is used upward.

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 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 surface 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 replaced and assembled. 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 attached to 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, the holding member 73 and the base member 71 form a continuous surface as shown in fig. 9, 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 with which a desired height can be selected.

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 state of a main body terminal portion of the electric vacuum cleaner connected to the output plug 81 of the AC adapter 80 viewed from the dust box side.

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 adaptor 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 adaptor 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 moving 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 connection state between the main 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 positioned 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 unit 17 is attached to the output plug 81, the main body terminal unit 17 is positioned close to the line of sight of the user, and thus the main body terminal unit 17 can be easily inserted into the output plug 81, and the cleaner main body 1 can be easily installed in the charging stand 70.

In the charging stand 70, an output plug 81 is formed on the upper surface 72b of the 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 in a state where the dust box 2 is removed by placing it on the charging stand 70, the charging can be performed even in a process of cleaning and drying the dust box 2.

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 for wiring an output cable 82 of the AC adapter 80 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 in a state where the standard cleaner head 400 and other accessories are connected.

The charging stand 70 can be used as a stand (stand) for storing the electric vacuum cleaner 100 even when the AC adapter 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 portion 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 blower 40 (see fig. 6) and the battery 3, which are heavy items of the electric vacuum cleaner 100, 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 the step is cleaned, 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 the reference numerals

1. Vacuum cleaner main body

2. Dust collecting box

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 element

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 head (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: an electric fan driven by a power supply; a cleaner body housing the electric blower; and a dust collecting device mounted on the cleaner body,

the dust collecting device includes: a housing section having an opening; a lid attached to the housing section and capable of opening and closing the opening; and a lid locking mechanism for locking the lid so that the opening is closed,

the cleaner main body includes: a claw portion capable of releasing the cover locking mechanism; an operation member operated by a user; a cable member that transmits a force operated by the operating member to the claw portion; and an elastic member for urging the operation member and the claw portion in a direction to return to original positions,

the cable member is mounted in the vicinity of a suction port of the cleaner body for sucking dust and in a direction coaxial with a suction direction,

the cable member has conductivity, and a member in contact with the claw portion of the dust collecting device has a current-carrying portion, and the cable member is connected to a control board built in the electric vacuum cleaner main body.

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

the vacuum cleaner main body has a handle portion that can be gripped by a user, and the operating member is provided in a range that can be reached by extending fingers from a position near the handle portion.

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

the cable member is provided between the operating member and the hook portion, and is operated by a user to move the operating member and the hook portion in the same direction.

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

after the user operates the operation member, the elastic member is moved to the original position by the elastic member attached to at least one of the operation member and the hook portion.

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

the operation member operates when a load equal to or greater than the mass of the main body is applied.