JPH09173260A - Electric cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make an electric cleaner lightweight by eliminating a power source for controlling a motor or the like in a hose using a method wherein a hand operating section is provided with a transmitting part to generate a radio wave coded in terms of control information while a receiving part is provided in the body to convert a received signal to a electrical signal to control the power of a motor by an output of the receiving part. SOLUTION: A hand operating part 101 of an electric cleaner is provided with a switch 113 for selecting a control method of a suction force, a transmitting section 107 to transmit a radio wave coded in terms of control information selected and a transmitting antenna 108. In the body part 104, there are arranged a receiving antenna 110, a receiving part 109 to convert the received ratio wave to an electrical signal and a control section 111 which judges operational information by an output from the receiving section 109 to control the power of a motor 112. A coded signal is transmitted following the operation of the switch 113 and when the signal coincides with an ID code set previously by the transmitting section 107 at the receiving section 109, the operation information is sent to a control section 111 to control the power according to the selection.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner using wireless communication.

[0002]

2. Description of the Related Art Conventionally, in this type of vacuum cleaner, operation information of a switch of a hand operation unit is transmitted to a motor or the like in a main body through a power line in a hose and a signal line for controlling a motor.

[0003]

However, the above-mentioned conventional technique has a problem that the power line, the signal line, and the reinforcing line pass through the hose, so that the hose tends to be heavy. There is also a problem that the operability is poor because the hose is hard and inflexible. Also, when radio waves from wireless communication are used for such transmission, communication may not be possible due to the directivity of the antenna. Furthermore, when the motor inside the main unit is operating, there is radio wave interference due to noise generated by the motor. There is a problem that it becomes uncontrollable, or another vacuum cleaner receives and malfunctions.

The present invention is intended to solve such a conventional problem and is intended to reduce the weight by eliminating the power supply line and the signal line for controlling the motor in the hose, and at the same time, to reduce the transmission and The purpose is to effectively perform reception on the main unit.

[0005]

A first means of the present invention for solving the above-mentioned problems is to provide a switch provided with control information in a main body provided in a hand-operated portion and a code for each control information by the switch. The transmitting unit for generating the radio wave, the transmitting antenna for transmitting the radio wave generated by the transmitting unit, the receiving antenna provided inside the main body for receiving the radio wave from the transmitting antenna, and the received radio wave The transmission antenna has a U-shape, and includes a receiving unit for converting the signal into an electric signal and a control unit for discriminating the operation information of the switch based on the output from the receiving unit and controlling the power of the motor.

The second means is a coil-shaped transmission antenna instead of the transmission antenna of the first means.

Further, as another means, a receiving antenna is connected to a 100V power source line of an internal circuit through a capacitor, or a handle portion formed by attaching a metal foil connected to the ground of the transmitting portion with a lead wire inside, A handle is provided inside which a battery serving as a power source of the transmitter is arranged.

[0008]

According to the first aspect of the present invention, since the transmitting antenna is U-shaped, it is easy to dispose the transmitting antenna on the hand-side operating portion, and the position and orientation of the main body having the receiving antenna are dependent. It becomes possible to communicate without using it.

According to the second aspect of the present invention, since the transmitting antenna has a coil shape, communication can be performed regardless of the position or orientation of the main body having the receiving antenna.

According to the third aspect of the present invention, the receiving antenna provided inside the main body is connected to the 100V power source line of the internal circuit via the capacitor, thereby forming a pseudo antenna and improving the radio wave receiving sensitivity. be able to.

According to a fourth aspect of the present invention, by attaching a metal foil, which is connected to the transmitting section of the hand operating section by a lead wire, to the inside of the grip section, the ground of the transmitting section is strengthened and the signal is stabilized, so that the transmitted radio wave is transmitted. The communication distance can be increased by strengthening the communication.

According to the fifth aspect of the present invention, the battery serving as the power source of the transmitter of the hand-held operating unit is arranged inside the handle, so that the user himself / herself becomes the human body ground, strengthens the radio wave to be transmitted, and is stable. Can communicate.

According to the sixth aspect of the present invention, since the main body and the hose need to be connected to connect the receiving section and the receiving antenna, an unexpected malfunction due to the radio wave of another cleaner when the cleaner is not used is prevented. be able to.

Embodiments of the invention will be described below with reference to the accompanying drawings. (Embodiment 1) FIG. 1 shows a form of an electric vacuum cleaner according to the present embodiment. A switch 113 for selecting a suction force control method and a switch 113 are provided on a hand operation unit 101.
There are a transmission unit 107 that transmits a radio wave coded by the control information selected in step 1, and a U-shaped transmission antenna 108 connected to the transmission unit 107. The main body 104 includes a receiving antenna 110 that receives radio waves, a receiving unit 109 that converts the received radio waves into electric signals, and operation information of the switch 113 that is determined by the output from the receiving unit 109.
There is a control unit 111 that performs 12 power controls. 102 is a handle portion, 103 is a hose, 105 is an extension tube, and 106 is a suction nozzle. 2 is a functional block diagram, in which 201 is a U-shaped transmitting antenna, 202 is a receiving antenna, 203 is a microcomputer for coding, and 204 is a coding microcomputer.
Is a transmission modulation circuit, 205 is a reception demodulation circuit, and 206 is a decoding microcomputer. Further, FIG. 3 is a circuit diagram of the transmission unit, in which 300 is a coding microcomputer, 301 is a tank circuit, 302 is a tuning circuit, and 303 is a high-frequency oscillation circuit. FIG. 4 is a circuit diagram of the receiving unit,
Reference numeral 401 is a quenching oscillation circuit, 402 is a high frequency oscillation circuit, 403 is a tank circuit for a filter, 404 is an amplification circuit, 400 is a decoding microcomputer, and 405.
Is a low-pass filter. The high frequency oscillator circuit includes a transistor TR401 and tank circuits L406 and C409,
This tank circuit is adjusted to resonate at the reception frequency of 310 MHz.

The quenching oscillating circuit 401 is a circuit which oscillates intermittently at a frequency lower than a high frequency oscillating frequency of 310 MHz. The quenching oscillating circuit 401 comprises a series circuit of a resistor R412 and a capacitor C414 connected in parallel and an inductance L405. Shared with. The low-pass filter 405 is a circuit for rounding a sharp spike-shaped sawtooth waveform generated from the quenching oscillation circuit to restore a binarized signal (1/0) to be received. Is determined. FIG. 5 is a configuration diagram in the vicinity of the hand operation unit. The hand operation unit 501 includes a transmission unit 502 that encodes control information of the motor selected by the switch 505 and transmits radio waves.
U-shaped transmission antenna 503 connected to the transmission unit 502
There is. In addition, 504 is a handle part.

The operation of the above configuration will be described below. First, the user operates the switch 1 of the hand operation unit 101.
At 13, the suction force is selected (strong / medium / weak or floor / tatami / carpet). The selected control information is transmitted by the transmission unit 107.
Is sent to the encoding microcomputer 203 and is encoded together with a 4-bit ID code for interference prevention.
After that, the transmission modulation circuit 204 performs ASK modulation to adjust the tank circuit 301 and the tuning circuit 302 to 21.8 MHz and tune them, and the U-shaped transmission antenna 108 to the main body 104
Is transmitted to the receiving unit 109 located at. The transmitted signal is received by the reception antenna 110 in the main body 104, and the 21.8 MHz tuning circuit 4 of the reception demodulation circuit 205.
The noise component from the quenching oscillation circuit oscillating at 90 kHz to 200 kHz through 03 is applied to the low pass filter 405 (super reproduction circuit). Then, only the amplitude is multiplied by 10 in the amplification circuit 404, and the threshold is set to 10
It is sent to the decoding microcomputer 206 through the comparator set to 0 mV. At this time, the LC oscillation 402 on the collector side of the transistor TR3 is also 21.8 MHz.
Adjust to z. When it matches the ID code preset in the transmitting unit in the decoding microcomputer, the operation information is sent to the control unit 111, and the power control of the motor 112 according to the selected switch is performed.

(Second Embodiment) FIG. 6 is a block diagram of an electric vacuum cleaner according to a second embodiment, in which a hand operation unit 601 has a switch 60 for selecting a suction force control method.
2, a transmission unit 603 that transmits a radio wave encoded by the control information selected by the switch 602, and a transmission unit 60.
3, there is a coiled transmitting antenna 604 connected to it. The main body 605 has a receiving antenna 606 for receiving radio waves.
And a receiving unit 607 that converts received radio waves into electric signals
Then, there is a control unit 609 that determines the operation information of the switch 602 based on the output from the reception unit 607 and controls the power of the motor 608. 610 is a hose, 611 is an extension pipe,
612 is a suction nozzle, and 613 is a handle. 7 is a functional block diagram. 701 is a coiled transmission antenna, 702 is a reception antenna, 703 is a microcomputer for encoding, 704 is a transmission modulation circuit, and 70
Reference numeral 5 is a reception demodulation circuit, and 706 is a decoding microcomputer. Circuit diagrams and configurations of the transmission unit and the reception unit are shown in FIGS. 3 and 4 and the first embodiment. Further, FIG. 8 is a block diagram of the vicinity of the hand operation unit. The hand operation unit 801 is connected to the transmission unit 803 which encodes the control information of the motor selected by the switch 802 and transmits an electric wave, and the transmission unit 803. There is a coiled transmitting antenna 804. Note that 80
Reference numeral 5 is a handle portion.

The operation of the above configuration will be described below. First, the user operates the switch 6 of the hand operation unit 601.
At 02, the suction force is selected (strong / medium / weak or floor / tatami / carpet). The selected control information is transmitted by the transmission unit 603.
Is sent to the encoding microcomputer 703 and is encoded together with a 4-bit ID code for interference prevention.
After that, the transmission modulation circuit 704 performs ASK modulation to adjust the tank circuit 301 and the tuning circuit 302 to 21.8 MHz for tuning, and the coil-shaped transmission antenna 604 to the main body 60
5 is transmitted to the receiving unit 607. The transmitted signal is received by the reception antenna 606 in the main body 605, passes through the 21.8 MHz tuning circuit of the reception demodulation circuit 705, and low-passes the noise component from the quenching oscillation circuit oscillating at 90 kHz to 200 kHz. Filter 4
05 (super playback circuit). Then, only the amplitude is multiplied by 10 in the amplification circuit 404, and the threshold is 100 mV.
It is sent to the decoding microcomputer 706 through the comparator set to. At this time, the transistor TR
The LC oscillation 402 on the collector side of 3 is also adjusted to be 21.8 MHz. When it matches the ID code previously set in the transmitting unit in the decoding microcomputer, the operation information is sent to the control unit 609, and the power control of the motor 608 according to the selected switch is performed.

(Third Embodiment) FIG. 9 is a block diagram of an electric vacuum cleaner according to a third embodiment. A switch 90 for selecting a suction force control method is provided on a hand operation unit 901.
2, a transmitter 903 for transmitting a radio wave coded by the control information selected by the switch 902, and a transmitter 90.
3 has a transmit antenna 904 connected to it. Body 90
5, a receiving antenna 906 for receiving radio waves, a receiving unit 907 for converting the received radio waves into electric signals, and a receiving unit 9
There is a control unit 909 that determines the operation information of the switch 902 based on the output from 07 and controls the power of the motor 908. 910 is a hose, 911 is an extension pipe, 912 is a suction nozzle, and 913 is a handle. In addition, FIG.
It is a functional block diagram of the Example of the 3rd means of this invention.
1001 is a transmitting antenna, 1002 is a receiving antenna, 1
Reference numeral 003 is a capacitor that connects the receiving antenna to the 100V power supply line of the control unit, 1004 is an encoding microcomputer, 1005 is a transmission modulation circuit, 1006 is a reception demodulation circuit, and 1007 is a decoding microcomputer. Circuit diagrams and configurations of the transmission unit and the reception unit are shown in FIGS. 3 and 4 and the first embodiment. Further, FIG. 11 is a configuration diagram of the main body portion, and 1101 is a control circuit of the main body portion 1102, and a receiving antenna 1105 is connected to a 100V power supply line 1103 of the control circuit 1101 via a capacitor 1104. Reference numeral 1106 is a receiving circuit and 1107 is a hose.

The operation of the above configuration will be described below. First, the user operates the switch 9 of the hand operation unit 901.
At 02, the suction force is selected (strong / medium / weak or floor / tatami / carpet). The selected control information is transmitted by the transmission unit 903.
Is transmitted to the encoding microcomputer 1004 and is encoded together with a 4-bit ID code for interference prevention. After that, the transmission modulation circuit 1005 performs ASK modulation to adjust the tank circuit 301 and the tuning circuit 302 to 21.8 MHz for tuning, and the transmission antenna 904 to the main body 905.
It is transmitted to the receiving unit 907 in. The transmitted signal is received by the reception antenna 906 in the main body 905, passes through the 21.8 MHz tuning circuit of the reception demodulation circuit 1006, and the noise component from the quenching oscillation circuit oscillating at 90 kHz to 200 kHz is low-passed. Filtered (super regenerative circuit). After that, the amplification circuit 40
Only the amplitude is multiplied by 10 at 4, and the signal is sent to the decoding microcomputer 1007 through the comparator in which the threshold is set to 100 mV. At this time, the transistor TR3
The LC oscillation 402 on the collector side of is also adjusted to be 21.8 MHz. When it matches the ID code previously set in the transmitting unit in the decoding microcomputer, the operation information is sent to the control unit 909, and the power control of the motor 908 according to the selected switch is performed. here,
The receiving antenna 906 is a control unit 909 inside the main body unit 905.
Since it is connected to the power supply line and the antenna becomes pseudo long as a whole, the receiving sensitivity is improved.

(Fourth Embodiment) FIG. 12 is a block diagram of an electric vacuum cleaner according to a fourth embodiment of the present invention.
Switch 1 for selecting the suction force control method
202, a transmitting unit 1203 that transmits a radio wave coded by the control information selected by the switch 1202, and a transmitting antenna 1204 connected to the transmitting unit 1203. The main body 1205 has a receiving antenna 1206 that receives radio waves, a receiving unit 1207 that converts the received radio waves into an electric signal, and operation information of the switch 1202 that is determined by the output from the receiving unit 1207, and power control of the motor 1208. There is a control unit 1209 for performing. 1210 is a hose, 1211 is an extension pipe, 1212 is a suction nozzle, 1
213 is a handle part. FIG. 13 is a functional block diagram of the electric vacuum cleaner according to the fourth embodiment, in which 1301 is a transmitting antenna, 1302 is a receiving antenna, 1303 is a microcomputer for encoding, 1304 is a transmission modulation circuit, and 13
Reference numeral 05 is a reception demodulation circuit, and 1306 is a decoding microcomputer. Circuit diagrams and configurations of the transmission unit and the reception unit are shown in FIGS. 3 and 4 and the first embodiment. Further, FIG. 14 shows a mounting portion inside the hand operation portion and the grip portion, 1401 is a transmitting antenna, 1402 is a transmitting substrate, and the hand operating portion 1403.
It is provided in. The metal foil 1406 is attached to the inside of the handle portion 1405, and the lead wire 1404 is used for the transmission substrate 140.
2 is connected to ground. 1407 is a hose.

The operation of the above configuration will be described below. First, the user selects the suction force (strong / medium / weak or floor / tatami / carpet) with the switch 1213 of the hand operation unit 1201. The selected control information is transmitted by the transmitter 1.
It is sent to the coding microcomputer 1303 of 207 and coded together with a 4-bit ID code for interference prevention. After that, the transmission modulation circuit 1304 performs ASK modulation, and the tank circuit 301 and the tuning circuit 302 are set to 21.8 MHz.
The signal is transmitted to the receiving section 1209 in the main body section 1204 from the transmitting antenna 1208. The transmitted signal is received by the receiving antenna 121 in the main body 1204.
21.8MHz of the reception demodulation circuit 1305
The noise component from the quenching oscillating circuit that oscillates at 90 kHz to 200 kHz through the tuning circuit of (1) is applied to the low-pass filter 405 (super reproduction circuit). After that, only the amplitude is multiplied by 10 in the amplification circuit 404, and the signal is sent to the decoding microcomputer 1306 through the comparator whose threshold is set to 100 mV. On this occasion,
The LC oscillation 402 on the collector side of the transistor TR3 is also 2
Adjust so that it is 1.8 MHz. In the decoding microcomputer, I which is set in advance in the transmitting unit
If it matches the D code, the operation information is sent to the control unit 1311, and the power control of the motor 1312 according to the selected switch is performed. Here, since the ground of the transmission board 1402 is connected to the metal foil 1406 inside the handle, the ground is reinforced and the electric wave can be stably transmitted.

(Fifth Embodiment) FIG. 15 is a block diagram of the vicinity of a hand operation section of an electric vacuum cleaner according to a fifth embodiment. A hand operation section 1503 includes a transmission board 1502 and a transmission antenna 1501. It is provided. A battery 1507 is contained inside the handle portion 1505, and the transmission substrate 1503 is provided.
And a power line 1504 and a ground line 1506. 1508 is a hose. The block diagram of the vacuum cleaner of the fifth embodiment is shown in FIG. 12 of the fourth embodiment. A functional block diagram is shown in FIG. 13 of the fourth embodiment. Circuit diagrams and configurations of the transmission unit and the reception unit are shown in FIGS. 3 and 4 and the first embodiment.

The operation of the above configuration will be described below. First, the user selects the suction force (strong / medium / weak or floor / tatami / carpet) with the switch 1213 of the hand operation unit 1201. The selected control information is transmitted by the transmitter 1.
It is sent to the coding microcomputer 1303 of 207 and coded together with a 4-bit ID code for interference prevention. After that, the transmission modulation circuit 1304 performs ASK, the tank circuit 301 and the tuning circuit 302 are adjusted to 21.8 MHz, and tuning is performed.
No. 04 is transmitted to the receiving unit 1209. The transmitted signal is received by the reception antenna 1210 in the main body 1204, passes through the 21.8 MHz tuning circuit of the reception demodulation circuit 1305, and the noise component from the quenching oscillation circuit oscillating at 90 kHz to 200 kHz is low-passed. It is applied to the filter 405 (super reproduction circuit). Then, only the amplitude is multiplied by 10 in the amplification circuit 404, and the threshold is set to 1.
It passes through the comparator set to 00 mV and is sent to the decoding microcomputer 1306. At this time, the LC oscillation 402 on the collector side of the transistor TR3 is also 21.8.
Adjust so that it becomes MHz. When it matches the ID code preset in the transmitting unit in the decoding microcomputer, the operation information is sent to the control unit 1211 to control the power of the motor 1212 according to the selected switch. Here, since the battery serving as the power source of the transmission circuit is arranged inside the handle, the user grips the battery through the handle, and the user himself / herself becomes the human body ground. Therefore,
Radio waves are strengthened and can be transmitted stably.

(Sixth Embodiment) FIG. 16 is a block diagram of an electric vacuum cleaner according to a sixth embodiment.
Includes a switch 1602 for selecting a suction force control method, a transmission unit 1603 for transmitting a radio wave encoded by the control information selected by the switch 1602,
There is a transmitting antenna 1604 connected to the transmitting unit 1603. 1605 is a hose, and a receiving antenna 160 is provided on the main body side.
6 is provided so that it can be connected to the receiving board of the main body 1607. The main body unit 1608 includes a receiving unit 1609 that converts received radio waves into electric signals, and a control unit 1612 that determines the operation information of the switch 1602 based on the output of the receiving unit 1610 and controls the power of the motor 1611. Reference numeral 1613 is a handle portion, 1614 is an extension tube, and 1615 is a suction nozzle. FIG. 17 is a configuration diagram of a connection portion between the hose and the main body, and a receiving antenna 1701 and a connecting portion 1703 between the receiving antenna 1701 and the main body 1706 are provided in the hose 1702. The main body 1706 is provided with a receiving board 1705, and the receiving antenna 1 in the hose 1702 is provided on the receiving board 1705.
A connection portion 1704 for connecting to 701 is provided. further,
FIG. 18 is a functional block diagram. 1801 is a transmitting antenna, 1802 is a receiving antenna, 1803 is a hose side receiving board connecting part, 1804 is a main body side receiving antenna connecting part, 1
Reference numeral 805 is a coding microcomputer, 1806 is a transmission modulation circuit, 1807 is a reception demodulation circuit, and 1808 is a decoding microcomputer. Circuit diagrams and configurations of the transmission unit and the reception unit are shown in FIGS. 3 and 4 and the first embodiment.

The operation of the above configuration will be described below. First, the user inserts a hose having a receiving antenna inside into the main body. At that time, the antenna inside the hose and the receiving circuit inside the main body are connected at the joint between the main body and the hose. Next, the switch 160 of the hand operation unit 1601
At 2, the suction force is selected (strong / medium / weak or floor / tatami / carpet). The selected control information is transmitted by the transmitter 160.
3 to the encoding microcomputer 1303,
It is coded together with a 4-bit ID code for countermeasures against interference. After that, the transmission modulation circuit 1806 performs ASK modulation to adjust the tank circuit 301 and the tuning circuit 302 to 21.8 MHz for tuning, and the transmission antenna 1604 to the main body 16
No. 05 is transmitted to the receiving unit 1607. The transmitted signal is received by the reception antenna 1608 in the main body 1605, passes through the 21.8 MHz tuning circuit of the reception demodulation circuit 1807, and the noise component from the quenching oscillation circuit oscillating at 90 kHz to 200 kHz is low-passed. It is applied to the filter 405 (super reproduction circuit). Then, only the amplitude is multiplied by 10 in the amplification circuit 404, and the threshold is set to 1.
It is sent to the decoding microcomputer 1808 through the comparator set to 00 mV. At this time, the LC oscillation 402 on the collector side of the transistor TR3 is also 21.8.
Adjust so that it becomes MHz. When it matches the ID code preset in the transmission unit in the decoding microcomputer, the operation information is sent to the control unit 1610, and the power control of the motor 1611 according to the selected switch is performed.

[0027]

As described above, according to the invention described in claim 1, since the transmitting antenna is U-shaped,
It is easy to place it on the operation unit at hand, and communication is possible regardless of the position or orientation of the main body having the receiving antenna.

According to the second aspect of the present invention, since the transmitting antenna has a coil shape, communication can be performed regardless of the position or orientation of the main body having the receiving antenna.

According to the third aspect of the present invention, the receiving antenna provided inside the main body is connected to the 100V power source line of the internal circuit via the capacitor to form a pseudo antenna, thereby improving the reception sensitivity of radio waves. Can be improved.

According to the fourth aspect of the invention, the metal foil, which is connected to the transmitter of the hand-operated unit by the lead wire, is stuck inside the handle, so that the user himself / herself becomes a human body ground and the radio wave to be transmitted. Can be strengthened and can communicate stably.

According to the invention of claim 5, the battery serving as a power source of the transmitter of the hand-operated portion is arranged inside the handle portion, so that the user himself / herself becomes the human body ground and the transmitted radio wave is stabilized. Can be made.

Further, according to the invention of claim 6, when the main body and the hose are connected to the receiving section and the receiving antenna, the radio waves of other vacuum cleaners when the cleaner is not used. It is possible to prevent an unexpected malfunction due to.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an electric vacuum cleaner according to a first embodiment of the present invention.

FIG. 2 is a functional block diagram of the electric vacuum cleaner.

FIG. 3 is a circuit diagram of a transmitter of the vacuum cleaner.

FIG. 4 is a circuit diagram of a receiving unit of the electric vacuum cleaner.

FIG. 5 is a block diagram of the vicinity of the hand operation part of the electric vacuum cleaner.

FIG. 6 is a configuration diagram of an electric vacuum cleaner according to a second embodiment of the present invention.

FIG. 7 is a functional block diagram of the electric vacuum cleaner.

FIG. 8 is a block diagram of the vicinity of the hand operation part of the electric vacuum cleaner.

FIG. 9 is a configuration diagram of an electric vacuum cleaner according to a third embodiment of the present invention.

FIG. 10 is a functional block diagram of the electric vacuum cleaner.

FIG. 11 is a block diagram of the main body of the electric vacuum cleaner.

FIG. 12 is a configuration diagram of an electric vacuum cleaner according to a fourth embodiment of the present invention.

FIG. 13 is a functional block diagram of the electric vacuum cleaner.

FIG. 14 is a block diagram of the vicinity of the hand operation part of the electric vacuum cleaner.

FIG. 15 is a configuration diagram in the vicinity of a hand operation unit of the electric vacuum cleaner according to the fifth embodiment of the present invention.

FIG. 16 is a configuration diagram of an electric vacuum cleaner according to a sixth embodiment of the present invention.

FIG. 17 is a configuration diagram of the connection part between the hose and the main body of the electric vacuum cleaner.

FIG. 18 is a functional block diagram of the same electric vacuum cleaner.

[Explanation of symbols]

 101 Hand Control Unit 107 Transmitter 108 U-shaped Transmitter Antenna 109 Receiver 110 Receiver Antenna 604 Coiled Transmitter Antenna 904 Transmitter Antenna 1202 Handle

Claims (6)

[Claims] 1. A switch provided in a hand-held operation unit for giving control information to a main body, a transmission unit for generating a radio wave coded for each control information by an output of the switch, and a radio wave generated by the transmission unit. Transmission antenna, a reception antenna provided inside the main body for receiving radio waves from the transmission antenna, a reception unit for converting the received radio waves into electric signals, and switch operation information by output from this reception unit. The electric vacuum cleaner having a U-shaped transmission antenna, which has a control unit for determining the power and controlling the power of the motor. 2. A switch which is provided in the hand operation section and which gives control information to the main body, a transmission section for generating a radio wave coded for each control information by the switch, and the radio wave generated by the transmission section. Transmission antenna, a reception antenna provided inside the main body for receiving radio waves from the transmission antenna, a reception unit for converting the received radio waves into electric signals, and switch operation information by output from this reception unit. And a control unit that controls the power of the motor, and the transmission antenna has a coil shape. 3. The vacuum cleaner according to claim 1, wherein the receiving antenna is connected to a 100V power line of the internal circuit via a capacitor. 4. The electric vacuum cleaner according to claim 1, further comprising a grip portion, wherein the grip portion has a metal foil connected to the ground of the transmitter with a lead wire attached inside thereof. . 5. The electric vacuum cleaner according to claim 1, further comprising a handle portion, wherein the handle portion has therein a battery serving as a power source of the transmitter. 6. The electric vacuum cleaner according to claim 1, wherein a receiving antenna is provided on the hose, and a receiving portion having a connecting portion with the receiving antenna is provided inside the main body.