JPH0733722Y2 - Small vacuum cleaner - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial field of application The present invention is a vacuum cleaner of a dual-purpose type capable of directly driving the motor with an alternating current when the motor is driven by a built-in rechargeable battery. It is about.

(B) Conventional Technology Various types of vacuum cleaners of the dual type have been proposed. For example, in Japanese Patent Laid-Open No. 61-131720, a handy-type cleaner body having a suction port on one side and a mounting portion for detachably mounting the cleaner body are provided, and the cleaning portion is provided at one end of the mounting portion. Connect an extension pipe that communicates with the suction port of the machine body, and attach a handle to the other end of the fitting part.
A support body having a suction port body connected to the tip of the extension tube, and a rechargeable battery charged by an AC power supply relaying the support body to the cleaner body, and the DC power supply and the AC power supply. The electric blower can be operated by either an AC power source or a DC power source by switching the above, and a winding portion of an electric cord provided on the support and supplying the AC power is provided on a surface different from the mounting portion of the support. An electric vacuum cleaner provided is disclosed.

In this example, since there is only one motor, it is necessary to match the output characteristics of the motor with the output of the battery, and there is a problem in that there is no merit when using an AC power supply.

(C) Problems to be solved by the invention The problems to be solved by the invention are to drive the DC motor and the AC motor in correspondence with the DC power supply and the AC power supply, respectively, and to improve the operability when using the DC power supply. It is to improve.

(D) Means for Solving Problems A dust collection case 1 having a suction port 4 and a filter 6 built therein,
The charging drive unit case 2 having the rechargeable batteries 13 and 14, the DC motor 12 and the fan 11 rotated by the DC motor 12, and the charging current supply unit to the rechargeable batteries 13 and 14 and the AC motor 22 and the The charger case 3 has a fan 21 that is rotated by an AC motor 22, and the charging drive case 2 and the charger case 3 can be selectively fitted into the dust collection case 1.
The charger case 3 can be connected to the charging drive unit case 2, and when the dust collection case 1 and the charging drive unit case 2 are fitted together,
The fan 11 is rotated by the DC motor 12 using the rechargeable batteries 13 and 14 as a power source, and when the dust collection case 1 and the charger case 3 are fitted together, the commercial AC is used as a power source and the AC motor 22 drives the fan.
When the charging driving unit case 2 and the charger case 3 are connected, the charging battery 1 is rotated by the charging current supply unit when the charging driving unit 21 is rotated.
Characterized by charging 3,14.

(E) Action The charging drive unit case is fitted and attached to the dust collection case, and the DC motor and the fan are driven by using the charging battery in the case as a power source to suck the dust. Further, the charger case is fitted and attached to the dust collection case, the AC motor and the fan are driven, and the dust collection is sucked with a relatively strong suction force. Further, the charging drive case is fitted into the dust collection case, and the charging current is supplied to the charging battery inside the charging drive case while the charging drive case is fitted and attached to the charger case.

(F) Embodiment Hereinafter, the vacuum cleaner of the present invention will be described in detail with reference to an embodiment of the drawings.

In the vertical cross-sectional view of FIG. 1, a dust collection case (1), a charging drive unit case (2), and a charger case (3) are stacked by fitting to stand up.

The dust collection case (1) has a suction port (4) at the upper end, and a check valve (5) is attached to the suction port (4) and a filter body (6) is detachably housed inside. There is. Further, (7) is a handle body, which is integrally formed or attached and fixed to the lower part of the side surface of the dust collecting case (1), and the head is constantly urged in the protruding direction by a spring (8). A switch operating rod (9) is provided.

The charging drive unit case (2) has an intake hole (10) on its upper surface, and the fan (1) is provided at a position facing the intake hole (10) inside.
1) is installed and a DC motor (12) for rotating and driving the fan (11) is housed, and rechargeable batteries (13) (14) for supplying DC current to the motor (12) are connected to the motor (1).
It is arranged around 2). The motor (12) and the batteries (13) and (14) are connected via a micro switch (15), and the micro switch (15) connects the charging drive unit case (2) to the dust collecting case (1). It is positioned so as to be able to come into contact with the leg portion of the switch operating rod (9) of the handle body (7) at the time of fitting, so as to oppose the side surface communication hole (16) of the charging drive case (2). . The rechargeable battery (13) (14)
Is connected to the power receiving contact (17) (18), and this power receiving contact (1
7) and (18) are bottom recesses (1) of the charging drive case (2).
It is provided to counter 9).

The charger case (3) has an intake hole (20) on the bottom surface thereof, a fan (21) is disposed inside the charger case (3) so as to oppose the intake hole (20), and the fan (21) is rotationally driven. The AC motor (22) for use is housed, and a cord (23) for supplying an AC current to the motor (22) is wound around a groove (24) circumferentially formed on the side surface of the charger case (3). It is fixed. The cord (23) and the motor (22) are connected via a micro switch (25), and this micro switch (25) also has side communication like the micro switch (15) of the charging drive case (2). It is located against the hole (26). Therefore, when the charger case (3) is fitted and attached to the dust collection case (1), it can be opened and closed by the switch operating rod (9) of the handle portion (7). A transformer (27) for decompressing AC 100V and a rectifier to be described later are housed in the charger case (3), and a charging current generated by both is projected (28) on the upper surface of the charger case (3). ), The power receiving contact located in the recess (19) of the charging drive case (2) into which the protrusion (28) is fitted via the power supplying contact (29) (30). (17) (18) is connected to supply charging current to the rechargeable batteries (13) (14).

Exhaust holes (31) (32) for discharging the air sucked in by the fans (11) (12) to the outside are formed on the side surfaces of the charging drive case (2) and the charger case (3). ing.

A circuit diagram is shown in FIG. In the figure, (33) is a rectifier, and others are as described above.

In the electric vacuum cleaner having the above-mentioned configuration, in the case of direct current driving, the charging drive case (2) is made to have its intake hole (10) opposed to the dust collection case (1) as shown in FIG. Used in the case (1). When the handle portion (7) is gripped and the switch operating rod (9) is pressed, the micro switch (15) is closed, and current flows from the batteries (13) and (14) to the motor (12), causing the motor (12) to move. Since it is driven, the fan (11) rotates, and dust is sucked from the suction port (4) together with the suction air. The sucked dust is separated from the sucked air by the filter body (16), and the dust is collected in the dust collection case (1). On the other hand, the intake air passes through the filter body (6), enters the charging drive unit case (2), and is discharged to the outside air from the exhaust hole (31).

When using alternating current, as shown in FIG. 4, the charger case (3) is fitted to the dust collection case (1) with its intake hole (20) facing the dust collection case (1). . When the cord (23) is inserted into the outlet and the switch operating rod (9) is pressed, the micro switch (25) is closed and commercial AC is supplied from the outlet to the motor (22) via the cord (23). Since the motor (22) is driven, the fan (21) rotates and the suction air (4) sucks dust together with the suction air. The sucked dust is collected in the dust collection case (1) and the sucked air is discharged through the exhaust hole (32).

Furthermore, when charging the batteries (13, 14), the protrusion (2) of the charger case (3) is placed in the recess (19) of the charging drive case (2).
When both cases (2) and (3) are connected by matching 8),
Transformer (27) and rectifier (3) in the charger case (3)
3) is connected to the batteries (13) (14) in the charging drive case (2), the commercial AC supplied from the cord (23) is step-down rectified, and the charging current is supplied to the batteries (13) (14). Supplied.
During this charging, the dust collection case (1) may be connected to the charging drive unit case (2) as shown in FIG. 5, or may be removed.

(G) Effect of the Invention As described above, the present invention has the suction port 4 and the filter 6
A dust collecting case 1 having a built-in battery, charging batteries 13 and 14, a DC motor 12, and a charging drive case 2 having a fan 11 rotated by the DC motor 12, and the charging battery 1
AC motor 22 with charging current supply to 3,14
And a fan 21 rotated by the AC motor 22
And a charger case 3 having a built-in battery, and the charging drive unit case 2 and the charger case 3 can be selectively fitted into the dust collection case 1, and the charger case 3 is connected to the charging drive unit. When the dust collection case 1 and the charging drive unit case 2 are fitted to each other, the fan 11 is rotated by the DC motor 12 using the rechargeable batteries 13 and 14 as a power source so that the dust collection case 1 and the charger case 3 can be connected to the case 2. At the time of fitting, the fan 21 is rotated by the AC motor 22 using commercial AC as a power source. On the other hand, when the charging drive unit case 2 and the charger case 3 are connected, the charging current supply unit causes the charging batteries 13 and 14 to operate. Since it is characterized by charging, rechargeable battery 13,1 as a DC power source
4 and DC motor 12, and AC motor 22, respectively, depending on the application, for example, when using without a cord while carrying, use DC, and when strong suction force is required, use AC. Depending on the use, it can be used properly. Further, the unnecessary case 2 or case 3 can be removed before each use. As a result, the vacuum cleaner itself can be made compact and lightweight when used. In particular, when the charging drive unit case 2 is used, the cord for connecting to the commercial AC provided in the charger case 3 does not get in the way by removing the charger case 3.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of the vacuum cleaner of the present invention showing a charging time, FIG. 2 is an electric circuit diagram, FIG. 3 is an external perspective view showing a DC use, and FIG. 4 is an external perspective view showing an AC use. 5 and 5 are external perspective views corresponding to FIG. (4) …… Suction port, (6) …… Filter, (1) …… Dust collection case, (13) (14) …… Rechargeable battery, (12) …… DC motor, (11) …… Fan, (2) …… Charging drive case, (27) …… Transformer, (33) Rectifier, (22) …… AC motor, (21) …… Fan, (3) …… Charger case.

Claims (1)

[Scope of utility model registration request] 1. A dust-collecting case 1 having a suction port 4 and a filter 6 incorporated therein, and a charging drive case 2 incorporating rechargeable batteries 13 and 14, a DC motor 12, and a fan 11 rotated by the DC motor 12. And a charger case 3 having a charging current supply unit for the rechargeable batteries 13 and 14 and having an AC motor 22 and a fan 21 rotated by the AC motor 22 built therein. The dust collector case 3 can be selectively fitted into the dust collection case 1, and the charger case 3 can be connected to the charge drive unit case 2, so that the dust collection case 1 and the charge drive unit case 2 can be connected.
At the time of mating with the DC motor 12
When the dust collection case 1 and the charger case 3 are fitted together, the fan 21 is rotated by the AC motor 22 using the commercial AC as a power source, while the charging drive case 2 and the charger case 3 are rotated. A compact electric vacuum cleaner characterized in that the rechargeable batteries 13 and 14 are charged by the charging current supply unit when the battery is connected.