JPS63130031A - Electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a vacuum cleaner that can be used in both a rechargeable type and an AC type.

BACKGROUND OF THE INVENTION Conventionally, this type of vacuum cleaner has been of the type shown in FIG. In Figure 3, 1 is a motor for low voltage DC, 2 is an on-off switch, 3 is a rechargeable battery, 4 is a charging control circuit, 6 is a charge/replacement switch, and 6 is a transformer. .

When using the battery 3 as a power source, the transformer 6 is removed and the on-off switch 2 is turned on to supply power to the motor 1. Further, when charging the battery 3, the charging/replacement switch 5 is turned off and the battery is charged from the transformer 6 through the charging control circuit 4. When used as an alternating current type, the charge/replacement switch 6 is turned on and power is supplied from the transformer 6 to the motor 1.

Problems to be Solved by the Invention In such a conventional configuration, since the motor is a low-voltage DC type, a large current must be drawn to generate power, which requires a large transformer. The problem was that it was too heavy to be portable, making it difficult to use the vacuum cleaner.

Means for solving the problem In order to solve this problem, the present invention provides a rechargeable battery,
A vacuum cleaner that can be operated on both AC power and has a number of rechargeable unit batteries connected in series, with a nominal voltage of 80 to 1
00 (V), and the DC output obtained from the AC power line through the rectifier is connected to the battery via a resistor, so that the battery directly drives a commutator motor with ACloo [V] specifications. It is composed of

Function When operating with AC power, the commutator motor is driven from the AC power, and when operating with batteries, the commutator motor can be operated with either AC or DC.
It can be operated with a battery of 80 to 1ooCv]. Furthermore, when charging the battery, a DC voltage of about 140 [Vl is obtained by rectifying the ACloo[:V] power supply, so the current is limited by a resistor and charging is performed.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 and 2. In the figure, 21 is ACis, 22 is x
-Y-123 is a commutator motor with 10oCv specification. In addition, 24 is a rectifying diode bridge, 26
is a charging current limiting resistor, 26 is a lead-acid battery, and lead-acid batteries have D 2 CVI per cell, so by connecting 40 to 6 o cells in series, 80 to 1 o o
[: Forms a battery of Vl.

In the above configuration, when this vacuum cleaner is operated with the AC power supply 21, current flows from the AC power supply 21 to the commutator motor 23 via the switch 22, and the contents are as follows. There is no difference from an AC vacuum cleaner. On the other hand, when operating with the lead-acid battery 26, even if the AC power supply 21 is turned off, by switching the switch 22, the voltage of the lead-acid battery 26 is transferred from the lead-acid battery 26 to the commutator motor 23 via the switch 22. 80
~1qo[: When a voltage of Vl is applied, the commutator motor is A
Since the commutator motor 23 rotates in the same way whether it is C or DC, the commutator motor 23 is driven by the power of the lead acid battery 26.

By increasing the voltage of the lead-acid battery 26 to about 80 to 100[:V'l], one can apply ACloo to the motor.
A vacuum cleaner that can be used for both AC and DC can be realized without using a special motor that can be used for both low voltage and DC.

In other words, a conventional AC motor can be used as is. In addition, vacuum cleaners that use rechargeable batteries generally have a low battery voltage of 10 [V] or less.
Therefore, the K that generates power has a large current value, requiring special switches, lead wires, etc. However, by increasing the battery voltage, it is now possible to obtain a large amount of power even with a fairly small current value, and special considerations for switches, batteries, and wiring are no longer required.

Then, when charging the lead acid battery 26, the lead acid battery
When charging, basically a voltage of 2, a(:V) is required, and in this case, for 40 to 60 cells, a voltage of 100 to 125 (Vl) is required.
Since a voltage of approximately 14 oCv can be obtained by directly rectifying the AC power supply, charging can be easily performed via a current limiting resistor, eliminating the need to use a charging transformer or the like.

FIG. 2 shows an example of the structure of the lead-acid battery 26. By using small single cells 26a1 to 26an, the batteries can be housed in a suitable empty space.

Effects of the Invention As is clear from the above explanation, the vacuum cleaner of the present invention meets the ACloo [v] specifications by raising the battery voltage to 80 to 100 [■] and using it as a charging/replacement type. Since the motor can be used as is and a step-down transformer is not required during charging, the overall configuration can be simplified, thereby realizing a vacuum cleaner that is easy to use.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing an embodiment of the vacuum cleaner according to the present invention, and FIG. TA2 is a perspective view showing the structure of the lead-acid battery.
The figure is a circuit diagram showing a conventional example. 23... Commutator motor, 24... Group/rectifier diode bridge, 25... Charging current control resistor, 26... Lead-acid battery. Name of agent: Patent attorney Toshi Nakao (1 person, 26)
- Lead number flood Figure 1 z Figure 2 Figure 3

Claims (1)

[Claims] Using both a rechargeable battery and an AC power source, a large number of rechargeable unit batteries are connected in series, and the nominal voltage is 80%.
~100 [V], the DC output obtained from the AC power line through a rectifier is connected to the battery via a resistor, and the battery directly drives a motor with AC100 [V] specifications. A vacuum cleaner configured to.