JP7414638B2 - vacuum cleaner - Google Patents

Description

The present invention relates to a vacuum cleaner.

In conventional vacuum cleaners, by suctioning the dust on the surface to be cleaned together with air, static electricity is generated due to friction between the ventilation path inside the vacuum cleaner and the dust or air, and the vacuum cleaner then pulls the dust or air away from the user. Static electricity could be transmitted to the hands of people, causing discomfort.
Further, Patent Document 1 proposes a vacuum cleaner in which an electrostatic discharge body capable of discharging static electricity charged on a chargeable component into the air from an end of short felt fibers is provided on the outer surface of a suction flow path.

Japanese Patent Application Publication No. 10-55895

Static electricity is generated by sucking up dust (particularly dust) with the suction port body that has a rotating brush, and this static electricity is transmitted to the handle via the electrical wiring system, which can cause discomfort to the user. There was sex.

An object of the present invention is to provide a vacuum cleaner that has been made in consideration of the above circumstances.

According to the present invention, the vacuum cleaner body includes a suction device that has a housing containing an electric blower and that sucks dust, and a dust collector that captures the sucked dust,
The suction device includes an electrical parts storage section that stores the electric blower and a control board, and a pipe section that transfers the air sucked in by the suction force of the electric blower and the dust on the surface to be cleaned to the dust collector. and an operation unit for switching between driving and stopping the electric blower, and a discharge unit,
The operation section includes a switch section, a cover section provided on the outer surface of the housing so that the switch section can be operated, and a wiring section that can electrically connect the switch section and the control board. ,
The vacuum cleaner is provided in which the discharge section is provided at a position near the switch section on the outer periphery of the wiring section, and is configured to discharge static electricity from the wiring section into the air within the casing.

According to the present invention, it is possible to suppress the possibility that static electricity generated during cleaning with a vacuum cleaner will cause unpleasant irritation to the user's hands.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows 1st Embodiment of the vacuum cleaner of this invention. It is a block diagram explaining the control system of the vacuum cleaner of a 1st embodiment. It is a left sectional view showing a vacuum cleaner main body of a vacuum cleaner of a 1st embodiment. 4 is a block diagram illustrating a control system of the vacuum cleaner main body of FIG. 3. FIG. FIG. 4 is a partial left sectional view showing the operating section and handle section of the vacuum cleaner main body of FIG. 3; FIG. 4 is an explanatory diagram showing a discharge section provided in the wiring section of the operating section of the vacuum cleaner main body in FIG. 3; 7 is a cross-sectional view showing a discharge section provided in the wiring section of FIG. 6. FIG. 7 is a plan view showing the discharge section before being attached to the wiring section of FIG. 6. FIG. It is a top view which shows the modification of the discharge part of 1st Embodiment. FIG. 10(A) is a plan view of the discharge section of the second embodiment, and FIG. 10(B) is a plan view of a modification thereof. FIG. 11(A) is a plan view of the discharge section of the third embodiment, and FIG. 11(B) is a plan view of a modification of the second embodiment.

Hereinafter, this invention will be explained in further detail using the drawings. Note that the following description is illustrative in all respects and should not be construed as limiting the invention.

(First embodiment)
FIG. 1 is a perspective view showing a first embodiment of the vacuum cleaner of the present invention.
As shown in FIG. 1, this vacuum cleaner 1 includes a vacuum cleaner body 10, a battery 40 that is detachably attached to the vacuum cleaner body 10, and one end 61a that is detachably connected to the vacuum cleaner body 10. This is a stick-type cordless vacuum cleaner that includes an extension tube 60 and a suction port body 70 that is detachably connected to the other end 61b of the extension tube 60. Further, the vacuum cleaner 1 can also be used as a handy type by directly connecting the suction port body 70 to the vacuum cleaner main body 10 without using the extension tube 60.
Note that although a stick-type vacuum cleaner is illustrated in this embodiment, the present invention also applies to a stick-type vacuum cleaner of a type in which a dust collector is provided on the extension pipe side, a canister-type vacuum cleaner, and an upright-type vacuum cleaner. The vacuum cleaner may be a hand-held vacuum cleaner such as a vacuum cleaner or a futon vacuum cleaner.

FIG. 2 is a block diagram illustrating a control system of the vacuum cleaner according to the first embodiment.
As shown in FIGS. 1 and 2, this vacuum cleaner 1 includes relay wiring sections 26 and 62 that electrically connect the vacuum cleaner main body 10 and the suction port body 70 with or without the extension pipe 60; An electrical wiring system including 76 and the like is provided. Note that the relay wiring sections 26, 62, 76 and other wiring sections will be described in detail later.

The vacuum cleaner main body 10 includes a suction device 20 that includes an electric blower 22 and sucks dust, and a dust collector 30 that captures the sucked dust. Note that the vacuum cleaner main body 10 will be described in detail later.

The extension tube 60 includes a tube body 61 and the relay wiring section 62 including a plurality of conductive cables provided along the tube body 61.
Further, each conductive cable of the relay wiring section 62 has a pin-type terminal 62a provided on one end 61a side and a clip-type terminal 62b provided on the other end 61b side.

The suction port body 70 includes a suction port body 71, a joint portion 72 rotatably coupled to the suction port body 71 about a first axis in the front-rear direction, and a second axis perpendicular to the first axis. It includes a connecting pipe part 73 rotatably coupled to a joint part 72 about the center.

The suction port main body 71 includes a housing 71a having a suction port (not shown) at the bottom, a rotating brush 74 rotatably provided near the suction port in the housing 71a, and a drive motor 75 for rotating the rotating brush 74. a motor drive circuit (not shown) electrically connected to the drive motor 75; the relay wiring section 76 including a plurality of conductive cables having pin-shaped terminals 76a at their tips and electrically connected to the motor drive circuit; A power transmission mechanism 77 (for example, a pulley belt mechanism) that transmits the rotational force of the motor 75 to the rotating brush 74 is provided.

In the state where the suction port body 70 and the extension pipe 60 are connected, the pin-shaped terminal 76a of the relay wiring portion 76 of the suction port body 70 is inserted into the clip-type terminal 62b of the relay wiring portion 62 of the extension pipe 60, and electricity is supplied. connected.
In addition, in the state where the extension tube 60 and the vacuum cleaner main body 10 are connected, the pin-shaped terminal 62a of the relay wiring section 62 of the extension tube 60 is connected to the relay wiring section 20 of the vacuum cleaner main body 10 including a plurality of conductive cables, which will be described later. It is inserted into the clip-type terminal 26a of the terminal and is electrically connected.
Note that when the suction port body 70 is directly connected to the cleaner main body 10 without using the extension tube 60, the pin-type terminal 76a is inserted into the clip-type terminal 26a for electrical connection.

<Configuration of the vacuum cleaner body>
3 is a left sectional view showing the vacuum cleaner main body of the vacuum cleaner according to the first embodiment, FIG. 4 is a block diagram illustrating a control system of the vacuum cleaner main body of FIG. 3, and FIG. FIG. 3 is a partial left side cross-sectional view showing an operating section and a handle section of the machine body. In addition, in FIG. 3, arrows indicate the front-back and up-down directions when the pipe portion 21d (to be described later) of the vacuum cleaner main body 10 is viewed from a user who holds the pipe section 21d horizontally. The direction perpendicular to the paper plane of FIG. 3) is the left-right direction, and the structure of the vacuum cleaner main body will be explained based on this front-back, left-right, left-right, up-down direction. Further, in FIG. 4, the control system of the vacuum cleaner main body 10 (suction device 20) is shown in more detail than in FIG.

As shown in FIGS. 2 to 5, the suction device 20 of the vacuum cleaner body 10 includes an electric parts storage part 21a that stores an electric blower 22, its drive board 22a, a control board 23, etc., and a rear part of the electric parts storage part 21a. A housing 21 includes a handle portion 21b provided at the top of the electrical component storage portion 21a, a battery mounting portion 21c provided at the lower end of the electrical component storage portion 21a, and a pipe portion 21d provided in front of the upper portion of the electrical component storage portion 21a. .
The suction device 20 is also provided with an operating section 21e extending from the upper end of the electrical component storage section 21a toward the handle section 21b, and a discharging section 21f that discharges static electricity from the operating section 21e into the air within the housing 21. It is provided.

The electrical component storage portion 21a of the housing 21 is a substantially cylindrical portion, and is provided with a cylindrical air inlet 21aa that opens toward the front, and a lattice member 21ab (see FIG. 3) is provided in the air inlet 21aa. ) is inserted.
Furthermore, an exhaust port 21ac consisting of a plurality of small holes is provided on the right side wall of the electrical component storage section 21a.

The electric blower 22 is arranged behind the air inlet 21aa in the electrical parts storage section 21a so that the rotation axis of the electric blower 22 is parallel to and above a center line P passing through the center of the air inlet 21aa. has been done.
The drive board 22a of the electric blower 22 is arranged behind the electric blower 22.
The control board 23 (see FIG. 4) is arranged, for example, behind the drive board 22a or between the electric blower 22 and the battery mounting part 21c.
The control board 23 on which electronic components including a microcomputer are mounted is electrically connected to the battery 40 mounted on the battery mounting part 21c via a wiring part 23a including a plurality of conductive cables. It is electrically connected to the drive board 22a via the wiring section 23b.

The handle portion 21b includes an upper end portion 21ba extending rearward from the upper portion of the electrical component storage portion 21a, a lower end portion 21bb extending rearward from the lower portion of the electrical component storage portion 21a, and a grip portion connecting the upper end portion 21ba and the lower end portion 21bb. It consists of 21bc. The grip portion 21bc includes a grip provided on the grip portion 21bc so as to detect the fingers of the user's hand H (see FIG. 5) gripping the grip portion 21bc and output a detection signal to the control board (control portion) 23. A sensor 21bs is provided. Further, a battery locking mechanism 21bd is provided at the lower part of the handle portion 21b.

The grip sensor 21bs has a light emitting element and a light receiving element, and the light L1 is emitted from the light emitting element toward the fingers of the hand H of the user who grips the grip part 21bc, and the light L1 reflects reflected light L2 from the fingers. The fingers of hand H are detected by the light receiving element receiving light (see FIG. 5).
This grip sensor 21bs is electrically connected to the operating section 21e via a wiring section 21ec including a plurality of conductive cables. Note that a discharge section 21f, which will be described later, is provided in the vicinity of the connection section of the wiring section 21ec with the operation section 21e.

A connecting portion 21ae that is continuously connected to the upper end 21ba of the handle portion 21b is provided at the upper part of the electrical component storage portion 21a. An operating section 21e is provided, including a switch for switching between low and low modes, an automatic operation mode switch for operating the electric blower 22 while automatically adjusting its output, an "off" switch for stopping the operation, and the like.
The operating section 21e is electrically connected to the control board 23 via a wiring section 21ed including a plurality of conductive cables (see FIG. 4). Note that the operation section 21e and the discharge section 21f will be described in detail later.

The battery locking mechanism 21bd includes a lock release button part 21bda provided at the lower part of the grip part 21bc, a claw part 21bdb having an inclined surface part that can slide on the lock release button part 21bda, and a claw part 21bdb that urges the claw part 21bdb downward. The biasing member 21bdc (for example, a compression coil spring) is provided.

According to this battery locking mechanism 21bd, when the lock release button part 21bda is pushed forward, the front end of the lock release button part 21bda presses the inclined surface part of the claw part 21bdb, thereby resisting the urging force of the urging member 21bdc. Then, the claw portion 21bdb moves upward. When the pressure on the lock release button part 21bda is released from this state, the claw part 21bdb is pressed by the biasing member 21bdc and moves downward, thereby moving the lock release button part 21bda to the rear initial position (as shown in FIG. 3). position).

The battery mounting portion 21c has a recess that opens downward and rearward, and the recess is provided in an inclined shape that rises slightly (for example, about 10 degrees) from the rear toward the front. Furthermore, a power receiving terminal (not shown) that can be electrically connected to a power feeding terminal (not shown) of the battery 40 is provided in the inner part of the recessed part of the battery mounting part 21c.
In addition, ribs (not shown) extending along the longitudinal direction are provided on the left and right side surfaces of the recess, and when the battery is installed, grooves (not shown) provided along the left and right sides of the battery 40 are provided on the left and right sides of the battery mounting portion 21c. It is designed to fit into the ribs while sliding. At this time, the claw portion 21bdb of the battery locking mechanism 21bd engages with the notch recess 42 on the rear upper surface of the battery 40, thereby locking the battery 40 in the installed state in the battery mounting portion 21c (see FIG. 3).

The pipe portion 21d protrudes forward from a protruding portion 21ad that is connected to the connecting portion 21ae and protrudes further forward than the air introduction port 21aa, and has a suction port 21da at its tip.
Further, as shown in FIGS. 3 and 4, in the pipe portion 21d, a clip-type terminal 26a of the relay wiring portion 26 is provided in a closed space below the suction port 21da, and communicates with a plurality of clip-type terminals 26a. A partition plate 21db having a plurality of insertion holes (not shown) is provided at the front end of the closed space.

As shown in FIGS. 2 and 4, the relay wiring section 26 is electrically connected to the control board 23.
When one end 61a of the extension tube 60 is inserted and connected to the suction port 21da of the pipe portion 21d of the suction device 20, the plurality of pin-shaped terminals 62a of the extension tube 60 are inserted into the plurality of insertion holes of the pipe portion 21d, and the plurality of pin-shaped terminals 62a are inserted into the plurality of insertion holes of the pipe portion 21d. It is electrically connected to the clip type terminal 26a.

As shown in FIG. 3, the dust collector 30 is a cyclone type dust collector having a dust collecting container 31 and a removable filter part 32. It is mounted horizontally along the bottom edge. That is, the space between the lower end of the pipe portion 21d of the suction device 20 and the air inlet 21aa of the electrical component storage portion 21a is configured as a mounting portion for the dust collector 30.

An inlet 31a (see FIG. 3) is provided in a part of the peripheral wall of the dust collecting container 31, and the lower end of the pipe part 21d of the suction device 20 can be connected to the inlet 31a of the dust collecting container 31. An outlet 21dc (see FIG. 5) is provided. Therefore, when the cleaner main body 10 is driven, the dust-containing air that has flowed into the pipe portion 21d of the suction device 20 flows into the dust collection container 31 via the outflow port 21dc and the inflow port 31a.

The filter part 32 of the dust collector 30 includes a cup part 32a that is removably fitted into the opening of the dust collection container 31, and an inner cylinder part that is connected to the center hole of the cup part 32a and housed in the dust collection container 31. 32b, and a filter main body 32c provided on the opposite side of the inner cylinder part 32b of the cup part 32a.

When the vacuum cleaner main body 10 is driven, a part of the relatively large first dust of the dust-containing air that has flowed into the dust collection container 31 rotates inside the dust collection container 31 and is centrifuged, The dust No. 1 is captured by the mesh section provided in the inner cylinder section 32b. The relatively fine second dust that has passed through the mesh portion is captured by the filter body 32c. The air from which dust has been removed by passing through the filter body 32c flows into the suction device 20 from the air introduction port 21aa, passes through the electric blower 22, and is exhausted from the exhaust port 21ac.

<About the operation section and discharge section>
FIG. 6 is an explanatory diagram showing a discharge section provided in the wiring section of the operating section of the vacuum cleaner main body of FIG. 3. Moreover, FIG. 7 is a cross-sectional view showing the discharge part provided in the wiring part of FIG. 6, and FIG. 8 is a plan view showing the discharge part before being attached to the wiring part of FIG. 6.
As shown in FIGS. 3 and 6, the operation part 21e provided near the handle part 21b includes a switch part 21ea, a cover part 21eb provided on the outer surface of the housing 21 so as to be able to operate the switch part 21ea, The wiring section 21ec electrically connects the switch section 21ea and the grip sensor 21bs via a board side connector section 21eac and a wiring side connector section 21ecb, which will be described later, and the switch section 21ea and the control board 23 are electrically connected. and the wiring section 21ed.

The switch section 21ea includes a switch body 21eaa, a circuit board 21eab on which the switch body 21eaa is mounted, and a board-side connector section 21eac that electrically connects the circuit board 21eab and the wiring section 21ec.
In this embodiment, three switch bodies 21eaa are provided on the circuit board 21eab. These three switch bodies 21eaa are, for example, an automatic operation mode switch that operates while automatically adjusting the output of the electric blower 22, a switch that switches the output of the electric blower 22 between "strong/weak", and a switch that controls the operation of the electric blower 22. It is an "off" switch that stops the operation.
Further, in this embodiment, the circuit board 21eab is provided with three LED lights 21ead. These three LED lights 21ead are, for example, a light that lights up in automatic operation mode, a light that lights up when the output of the electric blower 22 is "strong," and a light that lights up when the output of the electric blower 22 is "weak." It is light.

The circuit board 21 eab is screwed to the rib structure inside the casing 21 with the board side connector part 21 eac facing toward the handle part 21 b (see FIG. 3).
As shown in FIGS. 1, 3, and 6, the cover part 21eb is made of an oval sheet material that is fitted into an oval hole formed in the housing 21, and covers the plurality of switch bodies 21eaa from above. It is meant to be covered.
The cover portion 21eb has three circular flexible membrane portions 21eba at positions corresponding to the three switch bodies 21eaa, and on their surfaces, for example, characters such as “auto”, “strong/weak”, and “off” are written. printed. By pressing these flexible film parts 21eba with a finger, each switch main body 21eaa can be pressed via each flexible film part 21eba.
Further, the portions of the cover portion 21eb corresponding to the three LED lights 21ead are transparent or semitransparent, so that the light of each LED light 21ead can be visually observed from the outside.

Further, the wiring section 21ec is electrically connected to the wiring main body 21eca (see FIG. 7), which is formed by covering the conductive cable 21ecx with an insulating tube 21ecy, so that it can be electrically connected to the board side connector section 21eac. It has a wiring side connector part 21ecb connected to the wiring side connector part 21ecb. In addition, in this embodiment, the case where the wiring part 21ec has three wiring main bodies 21eca is illustrated, but the number of wiring parts 21ec is not particularly limited, and may be one or two, or four or more. good.

As shown in FIGS. 6 to 8, the discharge portion 21f includes a conductive winding portion 21fa that is wound around the outer periphery of the wiring main body 21eca near the wiring side connector portion 21ecb, and a conductive winding portion 21fa that is wound around the wiring side connector portion 21ecb from the winding portion 21fa. It has a pair of conductive protrusions 21fb that protrude toward the wiring main body 21eca side opposite to 21ecb.
In the case of this embodiment, in the discharge portion 21f, the winding portion 21fa is formed of a band-shaped conductive fiber bundle, and the protruding portion 21fb is formed of a brush-shaped conductive fiber bundle. The discharge portion 21f can be formed, for example, by attaching a pair of brush-like protrusions 21fb to one long side of the unfolded band-shaped winding portion 21fa at a distance from each other.
The conductive fibers used in the discharge portion 21f may be any conductive fibers, such as fibers made of metal such as copper, aluminum, and stainless steel.

The discharge part 21f is arranged such that the pair of protruding parts 21fb protrudes toward the wiring part 21ec (three wiring bodies 21eca) on the opposite side from the wiring side connector part 21ecb, so that the winding part 21fa is connected to the outer periphery of the wiring part 21ec. It can be attached by wrapping it around.
At this time, for example, double-sided tape (not shown) attached to one wide surface of the winding section 21fa may be wound (attached) around the wiring section 21ec. Furthermore, the fixing tape 21fc is wound around the outer surface of the winding part 21fa wrapped around the wiring part 21ec to firmly fix the winding part 21fa to the wiring part 21ec, and the conductive fibers constituting each protruding part 21fb are You may also use a stopper. Note that the double-sided tape and the fixing tape 21fc may be electrically conductive.

When winding the discharge portion 21f around the wiring portion 21ec, the pair of protruding portions 21fb may be made to protrude toward the wiring portion 21ec (three wiring bodies 21eca) on the opposite side from the wiring side connector portion 21ecb. That is, the pair of protruding parts 21fb may protrude along the wiring part 21ec, or the tip side of each protruding part 21fb may be curved in a direction away from or toward the wiring part 21ec.

Furthermore, when winding the discharge section 21f around the wiring section 21ec, it is preferable that the distance W from the winding section 21fa to the wiring side connector section 21ecb is 1 mm to 6 mm (see FIG. 6).
By setting the interval W to 1 mm or more, the possibility that the conductive fibers of the winding part 21fa enter between the wiring body 21eca and the wiring side connector part 21ecb and come into contact with the core wire (conductive cable 21ecx) of the wiring body 21eca is suppressed. In addition, since the interval W is 6 mm or less, static electricity easily jumps from the wiring-side connector portion 21ecb to the winding portion 21fa, making it easier to obtain a high discharge effect by the discharge portion 21f. In other words, if the interval W is less than 1 mm, the winding part 21fa (conductive fiber) may enter between the wiring body 21eca and the wiring side connector part 21ecb and come into contact with the core wire (conductive cable 21ecx) of the wiring body 21eca. When the distance W increases and the distance W exceeds 6 mm, it becomes difficult for static electricity to jump from the wiring side connector section 21ecb to the winding section 21fa of the discharge section 21f, making it difficult to obtain a high discharge effect by the discharge section 21f.

Furthermore, when winding the discharge part 21f around the wiring part 21ec, it is preferable that the pair of protrusions 21fb be arranged at positions facing each other with the wiring part 21ec (the three wiring bodies 21eca) in the center. This is preferable because it can further enhance the discharge effect.

<About the vacuum cleaner during operation>
According to the vacuum cleaner 1 of the first embodiment configured as described above (see FIGS. 1 to 6), the user can grasp the grip portion 21bc and press the power switch (switch body 21eaa) of the operation portion 21e. As a result, a detection signal (High or Low) from the grip sensor 21bs and a driving command signal from the power switch (switch body 21eaa) are input to the microcomputer of the control board 23. Based on these signals, the microcomputer controls the drive motor 75 of the rotating brush 74 via a drive board (not shown), and also controls the electric blower 22 via the drive board 22a. Note that when the "auto" switch main body 21eaa is pressed, an automatic operation mode is entered in which the output of the electric blower 22 is automatically switched (adjusted) according to the condition of the floor surface and the detection result of the dust sensor. Also, by pressing the "strong/weak" switch body 21eaa, the microcomputer switches the output of the electric blower 22 to strong (or weak) each time the "strong/weak" switch body 21eaa is pressed. Take control. Furthermore, when the user releases his hand H from the grip part 21bc during driving, a detection signal (low or high) is input from the grip sensor 21bs to the microcomputer, and the microcomputer instructs the drive board to stop the drive motor 75 of the rotating brush 74. (not shown), and also controls the electric blower 22 to be stopped via the drive board 22a. Also, when the "off" switch body 21eaa is pressed during operation, the microcomputer controls the drive motor 75 of the rotating brush 74 to stop via the drive board (not shown), and also drives the electric blower 22 to stop. It is controlled via the substrate 22a.

When the vacuum cleaner 1 is operated, the rotary brush 74 of the suction port body 70 rotates and sucks the dust on the surface to be cleaned into the suction port. At this time, if the dust is particularly fine, static electricity is likely to be generated on the rotating brush 74, and the generated static electricity is transferred from the rotating brush 74 to the power transmission mechanism 77, the drive motor 75 and its motor drive circuit (not shown), and the relay wiring. It may reach the wiring side connector part 21ecb and the board side connector part 21eac of the operation part 21e through the parts 76, 62, 26, the control board 23, the wiring part 21ec, etc.

Assuming that the discharge section 21f is not provided near the wiring side connector section 21ecb, static electricity accumulates in the wiring side connector section 21ecb and the board side connector section 21eac, and when the amount of accumulated static electricity exceeds a certain amount. This may cause unpleasant irritation to the user's hand H, which grips the grip portion 21bc of the handle portion 21b. At this time, as shown in FIGS. 1 and 5, for example, there may be a slight gap between the joint part 21q when the outer part 21x and the inner part 21y of the casing 21 constituting the grip part 21bc are joined, or when the casing It is presumed that static electricity is arc discharged to the outside from a small gap between the peripheral edge of the mounting hole provided in the inner part 21y of the grip sensor 21 and the outer frame of the grip sensor 21bs fitted into the mounting hole.

In order to suppress the possibility that such static electricity arcs and gives unpleasant stimulation to the user's hand H, the present invention provides a discharge section 21f near the wiring side connector section 21ecb, and the board side connector section 21eac When static electricity reaches , the static electricity periodically jumps to the winding part 21fa of the discharge part 21f when the amount of charge is small, and flows from the tip of each conductive fiber of the brush-like protrusion 21fb into the air inside the casing 21. corona discharge. Therefore, it is possible to suppress the possibility of causing unpleasant irritation to the user's hand H due to the arc discharge as described above.

Note that even if static electricity generated by friction between the wiring part 21ec and the air flowing in the exhaust air path between the electric blower 22 and the exhaust port 21ac in the suction device 20 is transmitted to the wiring side connector part 21ecb, the same as described above will occur. The static electricity is corona discharged from the discharge section 21f into the air inside the housing 21.

(Modified example of the first embodiment)
FIG. 9 is a plan view showing a modification of the discharge section of the first embodiment. Note that in FIG. 9, elements similar to those in FIG. 8 are designated by the same reference numerals.
As shown in FIG. 9, in the discharge section 121f, a brush-like protrusion 121fb may be provided on the entire one long side of the winding section 21fa.
In this way, by wrapping the discharge part 121f around the wiring part 21ec, the protruding part 121fb of the discharge part 121f can be arranged over the entire outer periphery of the wiring part 21ec (three wiring bodies 21eca). Therefore, a high discharge effect can be obtained by the discharge section 121f.

(Second embodiment and variations thereof)
FIG. 10(A) is a plan view of the discharge section of the second embodiment, and FIG. 10(B) is a plan view of a modification thereof.
As shown in FIG. 10(A), in the case of the second embodiment, the winding portion 221fa and the pair of protruding portions 221fb of the discharge portion 221f are made of one conductive sheet. Furthermore, each protrusion 221fb is a tape bundle made up of a plurality of long and thin tapes 221fba cut into strips.
As shown in FIG. 10(B), in the case of the modified example of the second embodiment, a tape bundle consisting of a plurality of elongated tapes 321fba is disposed on the entire one long side of the winding portion 221fa of the discharge portion 321f at the protruding portion 321fb. It is established as.
In the case of the protrusions 221fb and 321fb of the discharge portions 221f and 321f of the second embodiment and its modifications, static electricity is corona discharged from the tips of the plurality of elongated tapes 221fba and 321fba.
In the second embodiment and its modified examples, by bending the end of the winding part 221fa on the wiring side connector part side into a flange shape in a direction perpendicular to the wiring part, or by increasing the thickness of the winding part 221fa, It may be possible to easily catch static electricity flying from the wiring side connector part. The same applies to the third embodiment and its modifications, which will be described later.
In the second embodiment and its modifications, other configurations are the same as those of the first embodiment and its modifications.

(Third embodiment and variations thereof)
FIG. 11(A) is a plan view of the discharge section of the third embodiment, and FIG. 11(B) is a plan view of a modification of the second embodiment. Note that in FIGS. 11A and 11B, elements similar to those in FIGS. 10A and 10B are designated by the same reference numerals.
As shown in FIG. 11A, in the case of the third embodiment, similarly to the second embodiment, the winding portion 221fa and the pair of protrusions 421fb of the discharge portion 421f are made of one conductive sheet. Further, each protruding portion 421fb is formed of a tape having a plurality of sharp acute angle portions 421fba at its tip.
As shown in FIG. 11(B), in the case of the modified example of the third embodiment, a tape having a plurality of sharp edge portions 521fba at the tip is provided on the entire one long side of the winding portion 221fa of the discharge portion 521f. It is provided as a protrusion 521fb.
In the case of the protrusions 421fb and 521fb of the discharge portions 421f and 521f of the third embodiment and its modifications, static electricity is corona discharged from the sharp tips of the acute angle portions 421fba and 521fba.
In the third embodiment and its modifications, other configurations are the same as those of the first embodiment and its modifications.

(Other embodiments)
The suction port body 70 of the vacuum cleaner 1 of the embodiment includes a motor-driven rotating brush 74, and static electricity is generated during rotation of the rotating brush 74, and the static electricity is transferred to the operating section 21e via the electrical wiring system. When the static electricity reaches the user's hand H, the static electricity is corona-discharged into the air inside the casing 21 by the discharge part 21f provided in the wiring part 21ec electrically connected to the operating part 21e, and the static electricity flies to the user's hand H. Although the case where the possibility of giving unpleasant stimulation is suppressed has been exemplified, the present invention may be configured as follows.
That is, in the suction device 20, static electricity is generated due to friction between the air flowing in the exhaust air path between the electric blower 22 and the exhaust port 21ac and the wiring part 21ec, and the static electricity can be transmitted to the wiring side connector part 21ecb and accumulate there. There is sex. This phenomenon occurs not only when the suction port is equipped with a motor-driven rotating brush, but also when the suction port is equipped with a turbine-driven rotating brush, or when the suction port is equipped with a rotating brush and its drive system. This may occur even if you do not have the necessary equipment.
Therefore, the vacuum cleaner of the present invention is a vacuum cleaner in which the vacuum cleaner body and the suction port body are not electrically connected via an electrical wiring system, and the suction port body is equipped with a turbine-driven rotating brush, The present invention can also be applied to a vacuum cleaner in which the vacuum cleaner main body and the suction port body are not electrically connected via an electrical wiring system, and the suction port body does not include a rotating brush and its drive system.
Furthermore, the present invention is not limited to vacuum cleaners in which a handle is provided on the vacuum cleaner body, but can also be applied to, for example, bottle-shaped vacuum cleaners that do not have a handle.

(summary)
The vacuum cleaner of the present invention includes a vacuum cleaner main body that has a casing that houses an electric blower and has a suction device that suctions dust, and a dust collector that captures the sucked dust,
The suction device includes an electrical parts storage section that stores the electric blower and a control board, and a pipe section that transfers the air sucked in by the suction force of the electric blower and the dust on the surface to be cleaned to the dust collector. and an operation unit for switching between driving and stopping the electric blower, and a discharge unit,
The operation section includes a switch section, a cover section provided on the outer surface of the housing so that the switch section can be operated, and a wiring section that can electrically connect the switch section and the control board. ,
The discharge section is provided at a position near the switch section on the outer periphery of the wiring section, and is configured to discharge static electricity from the wiring section into the air within the casing.

According to this configuration, static electricity generated during cleaning with a vacuum cleaner reaches the switch section via the wiring section, and is periodically discharged from the switch section via the discharge section before the amount of static electricity on the switch section increases. Because it discharges into the air inside the body (corona discharge), static electricity is less likely to accumulate in the switch. Therefore, there is a possibility that a large amount of static electricity accumulates in the switch section (the amount of charge increases) and discharges (arc discharge) all at once, causing unpleasant irritation to the hands of the user holding the vacuum cleaner's operating section. It is possible to reduce the
In addition, there is a known technology for conventional vacuum cleaners that reduces the amount of static electricity generated and reduces the possibility of static electricity being transmitted to the user's hands by forming the housing from resin containing an antistatic agent. ing. However, in this case, the amount of static electricity does not become zero, and the possibility of static electricity flying to the user's hands does not change much.In addition, the orthogonal rate of the molded product decreases and the cost increases, but this The invention allows countermeasures against static electricity to be taken at low cost without affecting the perpendicularity of the molded product.
Further, in the vacuum cleaner of Patent Document 1, the electrostatic discharge body is provided on the outer surface of the suction passage, which affects the external design, but in the present invention, the discharge part is provided inside the housing, so the external design is affected. It has no impact.

The vacuum cleaner of the present invention may be configured as follows, and these may be combined as appropriate.

- The suction device may have a handle portion near the operation portion.
Many of the various types of vacuum cleaners, such as stick-type, handy-type, canister-type, and upright-type vacuum cleaners, have a handle near the operating section. This is effective in reducing the possibility of static electricity flying around and causing unpleasant irritation.

- The switch section includes a switch main body, a circuit board on which the switch main body is mounted, and a board-side connector section that electrically connects the circuit board and the wiring section,
The wiring portion includes a wiring main body and a wiring side connector portion electrically connected to the wiring main body so as to be electrically connectable to the board side connector portion,
The discharge portion may be provided at a position near the wiring-side connector portion on the outer periphery of the wiring main body.
According to this configuration, static electricity that has traveled through the wiring body and reached the wiring-side connector portion and the board-side connector portion is transferred to the discharge portion, and is corona discharged from the discharge portion into the air within the casing.

- The discharge part includes a conductive winding part that is wound around a position near the wiring side connector part on the outer periphery of the wiring body, and a conductive winding part that is wound around the wiring body side on the opposite side from the wiring side connector part from the winding part. It may also have a conductive protrusion that protrudes from above.
According to this configuration, static electricity that has passed through the wiring body and reached the wiring side connector part and the board side connector part is easily transferred to the winding part with a large area of the discharge part, and the static electricity transferred to the winding part corona discharge from the protrusion into the air inside the housing.

- The protrusion may be formed of a brush-like conductive fiber bundle.
According to this configuration, static electricity in the discharge section is corona discharged into the air inside the casing from the tip of each fiber of the brush-like conductive fiber bundle that is the protrusion.

- The winding portion may be formed of a band-shaped conductive fiber bundle.
According to this configuration, the winding portion and the protruding portion can be easily formed integrally from the same conductive fiber.

- The winding part and the protruding part are made of one conductive sheet,
The protruding portion may be formed of a tape bundle consisting of a plurality of elongated tapes, or a tape having an acute corner at its tip.
According to this configuration, the discharge section can be formed at low cost. In addition, the static electricity in the discharge section causes corona discharge into the air inside the housing from the tip of each elongated tape of the tape bundle that is the protrusion or from the acute angle portion of the tip of the tape that is the protrusion.

- The distance from the winding portion to the wiring side connector portion may be 1 mm to 6 mm.
According to this configuration, since the interval is 1 mm or more, it is possible to suppress the possibility that the winding part will enter between the wiring body and the wiring side connector part and come into contact with the core wire (conductor wire) of the wiring body, Since the interval is 6 mm or less, static electricity is easily transferred (easily attracted) from the wiring-side connector portion to the winding portion of the discharge portion, making it easier to obtain a high discharge effect by the discharge portion. In other words, if the interval is less than 1 mm, there is a high possibility that the winding part will enter between the wiring body and the wiring side connector part and come into contact with the core wire (conductor wire) of the wiring body, and if the interval exceeds 6 mm, Static electricity becomes difficult to jump from the wiring side connector section to the winding section of the discharge section, making it difficult to obtain a high discharge effect by the discharge section.

- A plurality of the protruding parts may protrude from the winding part toward the wiring main body in a state that they are separated from each other.
According to this configuration, the protruding parts of the discharge part can be arranged at multiple locations on the outer periphery of the wiring body, so the discharge effect of the discharge part can be further enhanced, and the wiring bodies of the wiring part can be bundled. It is effective if

- A pair of protrusions as the plurality of protrusions may be arranged at positions facing each other centering on the wiring main body.
According to this configuration, since the pair of protrusions of the discharge part can be arranged at opposing positions on the outer periphery of the wiring body, the discharge effect of the discharge part can be further enhanced, and multiple wiring bodies of the wiring part can be bundled. This is effective when the number of sheets is 2 or 3 (for example, a bundle of 2 or 3 pieces).

- The protruding portion may be provided over the entire outer periphery of the wiring main body.
According to this configuration, since the protruding part of the discharge part can be arranged over the entire outer circumference of the wiring body, it is possible to obtain a high discharge effect from the discharge part, and the wiring body of the wiring part can be bundled with multiple wires. It is effective if

- further comprising a suction port body connected to the pipe part of the vacuum cleaner body directly or via an extension pipe,
The suction port body has a rotating brush and a drive motor that rotates the rotating brush,
An electrical wiring system including the wiring section may be provided from the switch section of the vacuum cleaner main body to the drive motor of the suction port connected to the vacuum cleaner main body directly or via an extension tube. good.
According to this configuration, static electricity is generated by scraping and suctioning dust (particularly dust particles) with the suction port body having a rotating brush, and the static electricity is transmitted to the switch section via the electrical wiring system, and the switch When the amount of static electricity (charge) accumulated on the vacuum cleaner exceeds a certain amount, it is possible to suppress the possibility of static electricity arcing and causing unpleasant irritation to the hands of the user holding the vacuum cleaner.

Preferred embodiments of the invention include combinations of any of the above-mentioned embodiments.
In addition to the embodiments described above, there may be various modifications of this invention. Such variations are not to be construed as falling outside the scope of this invention. This invention should include the meaning equivalent to the scope of the claims and all modifications within the said scope.

1: Vacuum cleaner, 10: Vacuum cleaner body, 20: Suction device, 21: Housing, 21 a: Electrical parts storage section, 21aa: Air inlet, Grid member: 21ab, 21 ac: Exhaust port, 21ad: Projection part, 21ae: connecting part, 21b: handle part, 21ba: upper end part, 21bb: lower end part, 21bc: grip part, 21bd: battery locking mechanism, 21bda: lock release button part, 21b db: claw part, 21bdc: attachment 21bs: Grip sensor, 21c: Battery mounting part, 21d: Pipe part, 21da: Suction port, 21db: Partition plate, 21dc: Outflow port, 21e: Operation part, 21ea: Switch part, 21eaa: Switch body, 21eab: circuit board, 21eac: board side connector section, 21ead: LED light, 21eb: cover section, 21eba: flexible membrane section, 21ec: wiring section, 21eca: wiring main body, 21ecb: wiring side connector section, 21ecx: conductive cable, 21ecy: insulating tube, 21ed: wiring section, 21f: discharge section, 21fa: winding section, 21fb: protruding section, 21fc: fixing tape, 21g: fitting section, 21q: joining section, 21x: outside parts, 21y: Inner parts, 22: Electric blower, 22a: Drive board, 23: Control board, 23a: Wiring section, 23b: Wiring section, 26: Relay wiring section, 26a: Clip type terminal, 30: Dust collector, 31: Dust collection container, 31a: inlet, 32: filter section, 32a: cup section, 32b: inner cylinder section, 32c: filter main body, 40: battery, 42: notch recess, 60: extension pipe, 61: pipe main body, 61a: One end, 61b: Other end, 62: Relay wiring part, 62a: Pin type terminal, 62b: Clip type terminal, 70: Suction port body, 71: Suction port body, 71a: Housing, 72: Joint part, 73: Connection pipe section, 74: Rotating brush, 75: Drive motor, 76: Relay wiring section, 76a: Pin type terminal, 77: Power transmission mechanism, 121f: Discharge section, 121f b: Projection section, 221f: Discharge section , 221fa: winding part, 221fb: protruding part, 221fba: elongated tape, 321f: discharge part, 321fb: protruding part, 321fba: elongated tape, 421f: discharging part, 421fb: protruding part, 421fba: acute angle part, 521f: discharge part, 521fb: protruding part, 521fba: acute angle part, L1: light, L2: reflected light, P: center line, W: interval

Claims (12)

The vacuum cleaner body includes a casing that houses an electric blower, a suction device that sucks out dust, and a dust collector that captures the sucked dust.
The suction device includes an electrical parts storage section that stores the electric blower and a control board, and a pipe section that transfers the air sucked in by the suction force of the electric blower and the dust on the surface to be cleaned to the dust collector. and an operation unit for switching between driving and stopping the electric blower, and a discharge unit,
The operation section includes a switch section provided in the housing , a cover section provided on the outer surface of the housing so as to be able to operate the switch section, and a cover section provided inside the housing, and the switch section and the control board. and a wiring part that can be electrically connected to the
The vacuum cleaner is characterized in that the discharge section is provided at a position near the switch section on the outer periphery of the wiring section, and configured to discharge static electricity from the wiring section into the air within the casing. The vacuum cleaner according to claim 1, wherein the suction device has a handle portion near the operating portion. The switch section includes a switch main body, a circuit board on which the switch main body is mounted, and a board-side connector section that electrically connects the circuit board and the wiring section,
The wiring portion includes a wiring main body and a wiring side connector portion electrically connected to the wiring main body so as to be electrically connectable to the board side connector portion,
The vacuum cleaner according to claim 1 or 2, wherein the discharge section is provided at a position near the wiring side connector section on the outer periphery of the wiring main body. The discharge portion includes a conductive winding portion that is wound around the outer periphery of the wiring body near the wiring side connector portion, and a conductive winding portion that extends from the winding portion to the wiring body side opposite to the wiring side connector portion. The vacuum cleaner according to claim 3, further comprising a protruding conductive protrusion. The vacuum cleaner according to claim 4, wherein the protruding portion is formed of a brush-like conductive fiber bundle. The vacuum cleaner according to claim 4 or 5, wherein the winding portion is formed of a band-shaped conductive fiber bundle. The winding part and the protruding part are made of one conductive sheet,
5. The vacuum cleaner according to claim 4, wherein the protruding portion is formed of a tape bundle made up of a plurality of long and thin tapes, or a tape having an acute corner at its tip. The vacuum cleaner according to any one of claims 4 to 7, wherein a distance from the winding portion to the wiring side connector portion is 1 mm to 6 mm. The vacuum cleaner according to any one of claims 4 to 8, wherein the plurality of protrusions protrude from the winding part toward the wiring main body in a state apart from each other. The vacuum cleaner according to any one of claims 4 to 9, wherein a pair of protrusions as the plurality of protrusions are arranged at positions facing each other with the wiring main body as the center. The vacuum cleaner according to any one of claims 3 to 8, wherein the protruding portion is provided over the entire outer periphery of the wiring main body. Further comprising a suction port body connected to the pipe portion of the vacuum cleaner body directly or via an extension pipe,
The suction port body has a rotating brush and a drive motor that rotates the rotating brush,
An electrical wiring system including the wiring section is provided from the switch section of the vacuum cleaner main body to the drive motor of the suction port connected to the vacuum cleaner main body directly or via an extension tube. The vacuum cleaner according to any one of claims 1 to 11.

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