KR20090102157A - Wireless transmitting/receiving apparatus and cleaner having the same - Google Patents

Abstract

PURPOSE: A wireless transceiver and a cleaner having the same are provided to control other electrical devices except for the cleaner in which the wireless transceiver is installed and a cleaner in which a receiving module of the wireless transceiver is installed. CONSTITUTION: A wireless transceiver(200) includes a transmission module(210), a receiving module(220) and a blocking cover. The transmission module wirelessly transmits signals of at least two frequency bands. The receiving module comprises at least two receivers(222a,222b). The receivers respectively receive the signals of at least two frequency bands. The blocking cover is installed at an upper side of the receiving module to cover upper parts of the receivers, and includes at least one signal incoming hole which is formed in a part out of upper parts of the receivers.

Description

Wireless transceiver and cleaner with same {Wireless Transmitting / Receiving Apparatus and Cleaner having the same}

The present invention relates to a wireless transmission and reception device, and more particularly, to a wireless transmission and reception device that is not affected by disturbance light or noise, and a cleaner having the same.

In general, a wireless transceiver is used to remotely control an electric device such as a television, a video, an air conditioner, a cleaner, etc. using an infrared signal.

1 is a block diagram showing a radio transceiver according to the prior art, and FIG. 2 is a perspective view showing a vacuum cleaner in which the radio transceiver according to the prior art is installed.

Referring to FIG. 1, the wireless transceiver 1 according to the related art includes a transmission module 10 and a reception module 20.

The transmission module 10 wirelessly transmits a control signal generated by the operation unit 44 and includes a transmitter 12 and a transmission control unit 11. The transmission control unit 11 receives the control signal from the operation unit 43 to produce a carrier signal of a constant frequency and transmits it through the transmitter 12.

The reception module 20 receives a carrier signal of a predetermined frequency transmitted from the transmission module 10, extracts a control signal from the carrier signal, and transfers the control signal to the main body controller 5. The main body controller 5 controls the electric device in which the receiving module 20 is installed according to the received control signal. Reference numerals 13 and 23 denote power units supplying power to the transmission module 10 and the reception module 20, respectively.

Referring to FIG. 2, the vacuum cleaner 30 including the wireless transceiver 1 according to the related art includes a suction nozzle 31, an extension tube assembly 40, and a cleaner body 50.

Extension tube assembly 40 includes an extension tube 41 and a flexible hose 42, the handle 43 is provided at the connection of the extension tube 41 and the flexible hose 42. The handle 43 is provided with an operation unit 44 for controlling a motor (not shown) of the cleaner body 50, and a transmission module 10. The transmission module 10 loads the control signal of the operation unit 44 on the infrared signal of one frequency band and transmits it.

The cleaner body 50 is connected to the flexible hose 42 of the extension pipe assembly 40, and a dust collecting device (not shown) for separating and storing the dirt from the air sucked through the suction nozzle 31, and generating a suction force. A suction force generator (not shown) is provided. The suction force generator generates suction force by rotating the impeller with a motor. In addition, a reception module 20 for receiving an infrared signal transmitted from the transmission module 10 is installed in the upper upper side 51 of the cleaner body 50.

Therefore, when the user generates a control signal for turning on the power of the motor by using the operation unit 44 installed on the handle 43 of the extension tube assembly 40, the control signal is generated by the transmission module 10. It is carried by infrared signals of two frequency bands. When the infrared signal transmitted from the transmission module 10 is received by the receiver 22 of the reception module 20, the reception control unit 21 separates the control signal from the received infrared signal and transmits the control signal to the main body control unit 5. . The main body controller 5 turns on the power of the motor according to the received control signal.

As described above, the cleaner 30 having the wireless transceiver 1 according to the related art has a control signal of the operation unit 44 installed on the handle 43 of the extension tube assembly 40 through the transmission module 10. When transmitted wirelessly, the receiving module 20 installed in the cleaner body 50 receives a control signal, so that the main body controller 5 can control the motor.

However, in the place where the cleaner 30 is used, noise or disturbance light having a frequency of the same band affecting the carrier frequency used by the wireless transceiver 1 is present, so that the cleaner 30 is transmitted to the wireless transceiver 1. There can be a lot of cases that can not control. For example, when the switching frequency of the inverter fluorescent lamp is in the same band as the carrier frequency of the radio transceiver 1, when the cleaner 30 is wirelessly controlled, the cleaner 30 malfunctions due to the frequency generated by the inverter fluorescent lamp. There is a problem that or to lose the function.

The present invention has been made in view of the above problems, and an object thereof is to provide a wireless transmission / reception apparatus capable of wireless transmission without being affected by external disturbance light or noise, and a cleaner having the same.

The object of the present invention as described above, the transmission module for transmitting a signal of at least two frequency bands wirelessly; A receiving module having at least two receivers capable of receiving the signals of the at least two frequency bands transmitted by the transmitting module for each frequency band; And a blocking cover installed on an upper side of the receiving module and blocking an upper portion of the at least two receivers, wherein the blocking cover includes at least one signal inlet formed at a position beyond an upper portion of the at least two receivers. This can be achieved by providing a wireless transceiver.

In this case, the transmission module preferably transmits a signal using one infrared LED.

Further, it is preferable that the transmitting module transmits one signal at least once at a first carrier frequency and subsequently transmits the signal at least once at a second carrier frequency.

In another aspect of the present invention, the object of the present invention as described above, the transmission module is installed in the extension tube assembly, for transmitting a signal of at least two frequency bands wirelessly; A receiving module installed inside the cleaner body and having at least two receivers for receiving the signals of the at least two frequency bands transmitted from the transmitting module for each frequency band; And a main body control unit controlling a motor of the cleaner body according to the signal transmitted from the receiving module, wherein the cleaner body includes at least one of the at least one place out of an upper portion of the at least two receivers so that the at least two receivers are not exposed. Can be achieved by providing a cleaner in which two signal inlets are formed.

In this case, two signal inlets may be formed in the cleaner body at both sides of the at least two receivers.

According to a wireless transceiver and a cleaner according to an embodiment of the present invention having the structure as described above, since the same control signal is transmitted using carrier frequencies of at least two bands, the same frequency as that of the carrier frequency of the wireless transceiver is Even when there is disturbance light or noise generating a frequency, the control signal can be normally received. Therefore, it is possible to accurately control other electric devices other than the cleaner in which the wireless transceiver is installed or the receiving module of the wireless transceiver is installed without being influenced by the outside.

1 is a block diagram of a wireless transceiver according to the prior art;

2 is a perspective view showing a vacuum cleaner having a wireless transceiver according to the prior art;

3 is a perspective view showing a cleaner having a wireless transceiver according to an embodiment of the present invention;

4 is a block diagram of a wireless transceiver according to an embodiment of the present invention;

5 is a partial plan view showing a portion in which the receiving module is installed in the cleaner of FIG. 3;

FIG. 6 is a partial cross-sectional view of the cleaner of FIG. 5 taken along line VI-VI; FIG.

7 is a plan view illustrating a receiving module of a wireless transceiver according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100; Cleaner 110; Suction nozzle

120; Extension tube assembly 124; Control panel

130; A cleaner body 131; Top cover

132,133; Signal inlet 139; Main body control unit

200; A wireless transceiver 210; Send module

211; Transmission control unit 212; transmitter

220; Receiving module 221; Receiving control unit

222a, 222b; Receiver 230; Blocking cover

231,232; Signal inlet

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the wireless transmission and reception apparatus and a cleaner having the same according to an embodiment of the present invention.

However, in the following description of the present invention, if it is determined that the detailed description of the related known functions or components may unnecessarily obscure the subject matter of the present invention, the detailed description and the detailed illustration will be omitted.

3 is a perspective view illustrating a cleaner including a wireless transceiver according to an embodiment of the present invention, and FIG. 4 is a block diagram of the wireless transceiver according to an embodiment of the present invention used in the cleaner of FIG. 3.

Referring to FIG. 3, the cleaner 100 including the wireless transceiver 200 according to an embodiment of the present invention includes a suction nozzle 110, an extension pipe assembly 120, a cleaner body 130, and a wireless transceiver. 200.

The extension tube assembly 120 includes an extension tube 121 and a flexible hose 122, and a handle 123 is provided at a connection portion of the extension tube 121 and the flexible hose 122. The handle 123 is provided with an operation unit 124 for controlling a motor (not shown) of the cleaner body 130. The operation unit 124 controls the motor of the suction force generator (not shown) installed in the cleaner body 130. Therefore, the operation unit 124 includes a power switch and a speed control switch to turn on / off the power of the motor and control the rotational speed of the motor to adjust the suction power.

The cleaner body 130 is connected to the flexible hose 122 of the extension pipe assembly 120, and a dust collecting device (not shown) for separating and storing the dirt from the air sucked through the suction nozzle 110 and generating a suction force. A suction force generator (not shown) is provided. As dust collectors, various types of dust collectors such as dust bags and cyclone dust collectors may be used. The suction force generator includes an impeller having a plurality of blades and a motor, and generates suction force by rotating the impeller with the motor. The main body controller 139 receives a control signal from the operation unit 124 of the extension tube assembly 120 to control the motor.

3 and 4, the wireless transceiver 200 includes a transmitting module 210 and a receiving module 220. The transmission module 210 is installed on the handle 123 of the extension tube assembly 120 and is electrically connected to the operation unit 124. The transmission module 210 loads a control signal of the operation unit 124 on a carrier frequency of at least two frequency bands, and includes a transmission control unit 211 and a transmitter 212.

The transmission control unit 211 is electrically connected to the operation unit 124, generates a carrier frequency for transmitting the control signal of the operation unit 124, and transmits the control signal to the carrier frequency to the transmitter 212. At this time, the transmission control unit 211 generates carrier frequencies of at least two bands different from each other as carrier frequencies. For example, when the transmission control unit 211 generates carrier frequencies of two bands, the first carrier frequency is 38 KHz and the second carrier frequency is 56 KHz. The transmission control unit 211 also loads the same control signal on the first carrier frequency and the second carrier frequency. If the transmission control unit 211 generates a carrier frequency of three bands or more, one control signal is carried on a carrier frequency of three bands or more and transmitted. The transmission control unit 211 may load a control signal on a carrier frequency using various modulation methods. As described above, when one control signal is loaded on at least two carrier frequencies and transmitted, when a signal of one carrier frequency is interrupted by external disturbance light or noise, the signal of another carrier frequency is received by the receiving module 220. It can be received by, so that the control signal can be transmitted reliably.

In addition, when one control signal is generated by the operation unit 124, the transmission control unit 211 preferably transmits at least two carrier frequencies carrying the control signal in various ways. For example, the transmission control unit 211 may transmit one control signal at least once at a first carrier frequency and then transmit the control signal at least once at a second carrier frequency. As an example, the transmission control unit 211 may continuously transmit the first carrier frequency carrying the control signal three times, and then transmit the second carrier frequency carrying the same control signal three times in succession. Alternatively, the transmission control unit 211 may transmit two or more times alternately between the first carrier frequency and the second carrier frequency on which the control signal is carried.

The transmitter 212 transmits a carrier frequency generated by the transmission control unit 211, and may use an infrared ray LED. The transmitter 212 emits infrared rays corresponding to the carrier frequency transmitted from the transmission control unit 211.

The transmission control unit 211 and the transmitter 212 receive power from the power supply unit 213. As the power supply unit 213, a battery may be used.

The receiving module 220 is installed in the cleaner main body 130 and receives the infrared signal transmitted from the transmitting module 210 and transmits the infrared signal to the main body controller 139. The receiving module 220 is preferably installed on the upper portion of the cleaner body 130 to receive the infrared signal transmitted from the transmitting module 210 well. In addition, the receiving module 220 is preferably installed inside the cleaner body 130 to prevent damage. Therefore, the receiving module 220 is preferably installed above the inside of the cleaner body 130. 3 illustrates a position where the receiving module 220 is installed in the cleaner body 130 by arrow A. FIG.

Referring to FIG. 4, the reception module 220 includes at least two receivers 222a and 222b and a reception control unit 221.

At least two receivers 221 are installed corresponding to the number of carrier frequencies of at least two bands transmitted by the transmission module 210. For example, when the transmission module 210 transmits carrier frequencies of two bands, two receivers 222a and 222b are installed to receive carrier frequencies of two bands, respectively. That is, when the transmitting module 210 transmits first and second carrier frequencies having different bands from each other, the receiving module 220 may receive the first carrier frequency 222a and the second carrier frequency. It includes a second receiver 222b that can receive. The receivers 222a and 222b use an infrared receiver capable of receiving the infrared signal transmitted from the transmitter 212.

The reception control unit 221 is electrically connected to the main body control unit 139, and separates a control signal from each carrier frequency received by the at least two receivers 222a and 222b and transmits the control signal to the main body control unit 139.

At least two receivers 222a and 222b and the reception control unit 221 are supplied with power from the power supply unit 223. The power supply unit 223 may use commercial power supplied from a motor.

FIG. 5 is a partial plan view illustrating an upper portion (arrow A) of the cleaner main body 130 in which the receiving module 220 is installed in the cleaner 100 of FIG. 3, and FIG. 6 illustrates the cleaner main body 130 of FIG. 5. Partial cross-sectional view taken in section VI.

5 and 6, the receiving module 220 is installed directly below the upper cover 131 of the cleaner body 130, and two signals are provided on the upper cover 131 toward the upper side of the receiving module 220. Inlets 132 and 133 are formed. In this case, as shown in FIGS. 5 and 6, the signal inlets 132 and 133 may be formed at a position away from the upper portion of the at least two receivers 222a and 222b. That is, the signal inlets 132 and 133 may not be formed directly above the at least two receivers 222a and 222b so that the at least two receivers 222a and 222b are not directly exposed to the outside. Then, the infrared signal transmitted from the transmitting module 210 does not directly enter the at least two receivers 222a and 222b, but is introduced into the cleaner body 130 through the signal inlets 132 and 133, and then internal components. After being reflected by the light, the incident light enters the receivers 222a and 222b. When the upper portion of the at least two receivers 222a and 222b is blocked by the lower cover 131 of the cleaner body 130, disturbance light or noise generated from an external device such as an inverter fluorescent lamp is transferred to the receivers 222a and 222b. Direct incidence can be blocked. Therefore, the receiving module 220 may effectively receive the infrared signal transmitted from the transmitting module 210.

In the present exemplary embodiment, two signal inlets 132 and 133 are formed in the cleaner body 130, but only one signal inlet 132 and 133 may be formed, and three or more signal inlets may be formed. That is, at least one signal inlet 132 and 133 may be formed in the upper cover 131 of the cleaner body 130. Experimentally, it is effective to provide two signal inlets 132 and 133.

As another embodiment, a separate blocking cover 230 may be installed in the receiving module 220 without using the upper cover 131 of the cleaner body 130. FIG. 7 illustrates a case in which the blocking cover 230 is installed on the substrate 224 of the receiving module 220 to form the receiving module 220 and the blocking cover 230 as one unit. The blocking cover 230 blocks at least two portions of at least two receivers 222a and 222b and includes at least one signal inlet 231 and 232 formed at a distance from a portion directly above the at least two receivers 222a and 222b. It is formed to. In the present embodiment, two signal inlets 231 and 232 are formed in the blocking cover 230. The blocking cover 230 blocks the disturbance light or noise from being directly introduced into at least two receivers 222a and 222b so that the receivers 222a and 222b of the receiving module 220 are transmitted from the transmitting module 210. Effectively receive infrared signals.

Hereinafter, the operation of the cleaner 100 having the wireless transceiver 200 according to an embodiment of the present invention having the above structure will be described in detail with reference to FIGS. 3 to 5.

In the case of cleaning using the cleaner 100, the user turns on the power switch of the operation unit 124 of the handle 123 of the extension tube assembly 120 to drive a motor installed in the cleaner body 130. Let's do it. When the power switch is turned on, the transmission control unit 211 electrically connected to the operation unit 124 generates a control signal (hereinafter, referred to as a motor on control signal) for turning on a motor, loads it on a carrier signal, and transmits the same to the transmitter 212. . At this time, the transmission control unit 211 generates a carrier frequency of two bands as a carrier signal to carry a control signal. That is, the transmission control unit 211 generates first and second carrier frequencies having different frequency bands as carrier frequencies for carrying the above-described motor on control signal. Subsequently, the motor on control signal is loaded on the first carrier frequency and the second carrier frequency, and then transmitted to the transmitter 212. The transmitter 212 transmits the transmitted first and second carrier frequencies in an infrared form. At this time, when the user presses the power switch of the operation unit 124 once, the transmission control unit 211 transmits the first carrier frequency in which the transmitter 212 carries the motor on control signal three times, and then the same motor. Control to transmit the second carrier frequency on which the on control signal is carried out three times.

At least two receivers 222a and 222b installed in the receiving module 220 receive the infrared signal transmitted from the transmitting module 210. That is, the first receiver 222a receives the infrared signal having the first carrier frequency, and the second receiver 222b receives the infrared signal having the second carrier frequency. If the external disturbance light or noise is the same as the first carrier frequency and the first carrier frequency is interfered with and thus cannot be received by the first receiver 222a, the second carrier frequency having the same control signal is the second receiver. 222b receives. In contrast, when the second carrier frequency is blocked because the disturbance light or the noise is the same as the second carrier frequency, the first receiver 222a may receive the first carrier frequency. When the first or second receiver 222a or 222b receives an infrared signal having a first or second carrier frequency, the reception controller 221 separates the control signal from the received infrared signal and transmits the separated control signal to the main body controller. Send to (139). The main body controller 139 turns on the motor according to the control signal transmitted from the receiving module 220.

If a signal for controlling the rotational speed of the motor is input from the operation unit 124, the main body controller 124 controls the rotational speed of the motor through the same process as described above.

In addition, the receiving module 220 is installed below the upper cover 131 of the cleaner body 130, and immediately above the at least two receivers (222a, 222b) is blocked by the upper cover 131, next to the Since the infrared signal is input through at least one signal inlet 132 and 133 installed in the receiver, the receiving module 220 effectively receives the control signal transmitted from the transmitting module 210 without being affected by disturbance light or noise such as an inverter fluorescent lamp. can do.

In the above description, the vacuum cleaner of the canister type is described as an example of the cleaner 100 in which the wireless transceiver 200 is installed according to an embodiment of the present invention, but the type of the cleaner is not limited thereto. The cleaner 100 that needs the wireless transceiver 200 such as a robot cleaner may apply the wireless transceiver according to an embodiment of the present invention to any cleaner.

In addition, although the vacuum cleaner 100 has been described as an example of an electric device to which the wireless transceiver according to an embodiment of the present invention is applied, it can be applied to an electric device such as a television, a video, an air conditioner, etc. in addition to the remote control. Do.

The present invention is not limited to the above-described specific embodiments, and simple components that can be carried out by those skilled in the art without departing from the spirit of the present invention described in the claims below. Substitutions, additions, deletions, and alterations of are within the scope of the claims.

Claims (7)

A transmission module for wirelessly transmitting signals of at least two frequency bands; A receiving module having at least two receivers capable of receiving the signals of the at least two frequency bands transmitted by the transmitting module for each frequency band; And A blocking cover installed on an upper side of the receiving module and blocking an upper portion of the at least two receivers; And the blocking cover includes at least one signal inlet formed outside the upper portion of the at least two receivers. The method of claim 1, The transmitting module is a wireless transceiver, characterized in that for transmitting a signal using one infrared LED. The method of claim 1, And the transmitting module transmits one signal at least once at a first carrier frequency and subsequently transmits the signal at least once at a second carrier frequency. A transmission module installed in the extension tube assembly and wirelessly transmitting signals of at least two frequency bands; A receiving module installed inside the cleaner body and having at least two receivers for receiving the signals of the at least two frequency bands transmitted from the transmitting module for each frequency band; And And a main body control unit controlling a motor of the cleaner main body according to the signal transmitted from the receiving module. The cleaner body, characterized in that at least one signal inlet is formed at a position beyond the upper portion of the at least two receivers so that the at least two receivers are not exposed. The method of claim 4, wherein The transmitting module is a cleaner, characterized in that for transmitting a control signal using one infrared LED. The method of claim 4, wherein And said transmitting module transmits one control signal at least once at a first carrier frequency and subsequently transmits said control signal at least once at a second carrier frequency. The method of claim 4, wherein And two signal inlets are formed in the cleaner body at both sides of the at least two receivers.