JPH025621Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a voltage switching device for electrical equipment such as a vacuum cleaner for export, which switches the circuit configuration according to the power supply voltage used.

Conventionally, for example, in the case of vacuum cleaners for export, the circuit configuration was changed using a switch according to the power supply voltage used, but the switch used for such switching had a complicated configuration such as a 12-terminal switch. Therefore, a very expensive switch was required, and it could not be called a very good product from a cost standpoint.

This proposal was made in view of these points,
Embodiments of the present invention shown in the drawings will be described in detail below.

First, in FIGS. 1 to 3, reference numeral 1 denotes a main body case 2 which has running wheels 3 on both rear sides and a flexible wheel 4 on the front bottom surface, and a main body attached to the upper surface of the rear half of the case 2. The vacuum cleaner main body (device main body) has an outer shell formed by a cover 5, and has an electric blower, a cord reel (none of which are shown), etc. inside. Reference numeral 6 denotes a dust collecting case which has a built-in filter device (not shown) and has an intake port 7 formed on the front surface, and is located on the upper surface of the front half of the main body case 2 and is separably connected to the vacuum cleaner main body 1. An air flow path is formed from the air intake port 7 to the electric blower via the filter device.

8 is a recess formed on the upper surface of the main body cover 5; 9;
Reference numeral 10 indicates a bearing formed integrally with the main body cover 5 on both sides of the recess 8, and reference numeral 11 indicates a shaft portion 11 on one bearing 9.
The spring 12 is rotatably supported by the spring 12.
The cord reel operating knob is always biased upward, and there is a protrusion (not shown) that releases the cord reel brake mechanism through the through hole 13 when the cord reel operating knob is rotated downward against the spring 12. ). 14 is a shaft portion 14' on the other bearing 10.
This is a driving operation knob rotatably supported by a spring 15, and is always urged upward by a spring 15. Reference numeral 16 denotes a push-on-push type operating switch disposed in the recess 8 of the main body cover 5, and when the operating switch operating knob 14 is rotated downward against the spring 15, the operating rod 16' is pressed. Controls the operation of the electric blower.

17 is a connector assembly for voltage switching arranged in the recess 8 of the main body cover 5, and the mounting angle 18,
It consists of a 110V (low voltage) circuit side connector 19 and a 220V (high voltage) circuit side connector 20, and each connector 19, 20 is fitted and fixed to the mounting angle 18 with claws 19', 20', respectively. This mounting angle 1
8 is labeled with "110V", "220V", etc. corresponding to each connector 19, 20. 21 indicates a screw for fixing the mounting angle 18. 22 is a switching connector, which is connected to the 110V circuit side connector 19.
It is selectively connected to the 220V circuit side connector 20.
Thus, each of the connectors 19, 20, 22 is connected to the fourth connector.
The terminals are connected as shown in the figure. In FIG. 4, 23 indicates an electric blower, and 24 indicates a power plug.

In this embodiment, female connectors are used for the connectors 19 and 20, and a male connector is used for the connector 22, but these may be reversed.

Reference numeral 25 denotes an operation panel that is attached with screws 26 so as to cover the recess 8 of the main body cover 5 and prevents the respective knobs 11 and 14 from falling off.
An opening 27 for projecting the voltage to the outside is formed, and a rectangular voltage switching opening 28 is formed. 2
Reference numeral 9 denotes a rectangular cover plate which is removably attached to the voltage switching opening 28, and is configured so that it can be attached by selecting the left-right reversal, that is, the attachment state (direction). Therefore, the operation panel 25 has a voltage switching opening 28.
One end of the cover plate 29 displays a voltage of "110V" and the other end displays a voltage of "220V," and indicators a and a' are provided on both sides of one end of the cover plate 29.

This embodiment has the above-mentioned configuration, and when switching the circuit configuration according to the power supply voltage used, the cover plate 29 is removed to open the voltage switching opening 28, and the switching connector 22 located inside the opening 28 is opened. This is done by changing the connections. For example, if the power supply voltage used is 110V
In this case, the switching connector 22 is connected to the 110V circuit side connector 19. Then both connectors 1
Corresponding terminals 9 and 22 are electrically connected, and the circuit configuration is switched to 110V. Also, if the power supply voltage used is 220V, connect the switching connector 22.
By connecting to the 220V circuit side connector 20,
Switch to the circuit configuration for 220V. In this way, by changing the connection of the switching connector 22, the circuit configuration can be changed according to the power supply voltage used.

After the work is completed, the voltage switching opening 28 will be closed with the cover plate 29, but at this time,
When switching to 110V, "110V" display and indicator a
However, when switching to 220V, the cover plate 29 is attached so that the "220V" display and the index a' match. However, if you do this, the operation panel 25
You can check at a glance which voltage side it is on.

The voltage switching device of the present invention is not limited to vacuum cleaners for export, but can be applied to any electrical device that requires switching the circuit configuration depending on the power supply voltage used.

Further, in this embodiment, the display is switched by reversing the lid plate 29 from side to side to change its mounting state, but it is also possible to switch the display by reversing the lid plate 29 from front to back or rotating it by a predetermined angle. Further, a voltage display may be attached to the cover plate 29, and an indicator may be provided in the voltage switching opening 28.

According to the present invention having the configuration as described above, by using a combination of simple and inexpensive connectors, the circuit configuration can be switched according to the power supply voltage used.
It is no longer necessary to use a very expensive switch with a complicated configuration for 12 terminals as in the past, which is advantageous in terms of cost.Moreover, it can be displayed using a cover plate that closes the voltage switching opening. Switching can also be performed, making it extremely practical.

[Brief explanation of the drawing]

Figure 1 is an external perspective view of a vacuum cleaner incorporating the voltage switching device of the present invention, Figure 2 is an exploded perspective view of the main parts of the same, Figure 3 is an exploded perspective view of the main parts of the same, and Figure 4 is an exploded perspective view of the main parts of the same.
The figure is an electrical circuit diagram of the same as above. 19...110V circuit side connector, 20...220V
Circuit side connector, 22...Switching connector, 28
...Voltage switching opening, 29...Cover plate, a/a'...
…index.

Claims (1)

[Scope of utility model registration request] In devices that switch the circuit configuration according to the power supply voltage used, a voltage switching opening is formed at an appropriate location on the device body, and a low voltage circuit side connector, a high voltage circuit side connector, and both connectors are placed inside this opening. A switching connector that selectively connects to the circuit configuration to switch the circuit configuration is housed, and a cover plate is removably attached to the voltage switching opening, and the cover plate can be attached in two different states. A voltage switching device characterized in that a voltage display is provided on either the cover plate or the voltage switching opening side, and an indicator is provided on the other side, and the display is switched by selecting the mounting state of the cover plate.