CN209859285U - Power supply and data transmission device - Google Patents

Abstract

The embodiment of the application provides a power supply and data transmission device, and the device at least comprises: the device comprises a first control module, a first input module, a second input module and a second control module; the first control module is used for controlling at least two input pulse sequences to simultaneously carry out high-low level conversion according to a preset communication protocol so as to generate data to be transmitted, and inputting the at least two input pulse sequences and the data to be transmitted to the first input module; the first input module is used for generating a first voltage according to at least two input pulse sequences, and inputting the first voltage and data to be transmitted to the second input module, wherein the first voltage is a power supply voltage of a circuit in the device; the second input module is used for converting the first voltage into a second voltage and inputting the data to be transmitted to the second control module, and the second voltage is at least the power supply voltage of the second control module; and the second control module is used for determining an execution instruction corresponding to the data to be transmitted and controlling the execution of the execution instruction.

Description

Power supply and data transmission device

Technical Field

The application relates to the technical field of household appliances, and relates to but is not limited to a power supply and data transmission device.

Background

At present, an internal power supply device of a household appliance generally includes two lines, i.e., a power supply line and a Ground line, so as to obtain an operating Voltage of the household appliance, such as a Voltage of 5 volts (V) and an Analog Ground (AGND) Voltage. The obtained 5V voltage only supplies power for chip-level peripheral devices, and when data transmission is required, a communication line is required to be separately added so as to obtain instructions from the data required to be transmitted to prompt household electronics to perform corresponding actions. Common communication protocols include a Universal Asynchronous Receiver/Transmitter (UART) protocol, an Inter-Integrated Circuit (IIC) protocol, and the like. The above-mentioned protocol adopts two wires to supply power and adopts a mode of adding communication wires to transmit data, which is simple to implement, but wastes wires, and at least 4 wires are needed to implement when two or more modules are needed to supply power and transmit data, especially when the distance is long or the space is narrow, the connecting wires are too many and the wiring is complex. If the communication line is not separately added, while the household appliance is powered by two lines, data transmission needs to be performed by means of Wireless technologies such as Radio Frequency Identification (RFID), Wireless Fidelity (Wi-Fi) or bluetooth, but the cost of the Wireless technologies is too high, and the system is too complex and the user experience is not high.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present application provides a power supply and data transmission device, so as to solve the problems of circuit waste, complicated wiring and high cost caused by the separate arrangement of a connection line for acquiring a working voltage and a connection line for performing data transmission of a household appliance in the related art, so as to transmit corresponding instructions of actions such as turning on, turning off or heating required to be performed by the household appliance while providing the working voltage to the household appliance, thereby not only reducing the number of wires, but also greatly reducing the requirements of the power supply and data transmission device on the internal space of the household appliance, and also reducing the cost.

An embodiment of the present application provides a power supply and data transmission apparatus, the apparatus at least includes: the device comprises a first control module, a first input module, a second input module and a second control module, wherein the first control module is electrically connected with the first input module, the first input module is electrically connected with the second input module, and the second input module is electrically connected with the second control module;

the first control module is used for controlling at least two input pulse sequences to simultaneously perform high-low level conversion according to a preset communication protocol so as to generate data to be transmitted, and inputting the at least two input pulse sequences and the data to be transmitted to the first input module;

the first input module is used for generating a first voltage according to the at least two input pulse sequences and inputting the first voltage and the data to be transmitted to the second input module; wherein the first voltage is a supply voltage for circuitry in the device;

the second input module is used for converting the first voltage into a second voltage and inputting the data to be transmitted to the second control module; wherein the second voltage is at least a supply voltage of the second control module;

the second control module is used for determining an execution instruction corresponding to the data to be transmitted and controlling the execution of the execution instruction.

By adopting the technical scheme of the embodiment of the application, the working voltage (such as 5V voltage and AGND voltage) required by power supply of the household appliance can be obtained to be common to the communication line required by data transmission, and the corresponding instructions of actions such as opening, closing or heating and the like required to be executed by the household appliance can be sent while the working voltage is provided for the household appliance without independently setting the communication line for data transmission, so that the quantity of wires can be reduced, the requirements of the power supply and data transmission device on the internal space of the household appliance are greatly reduced, and the cost can be reduced.

Drawings

Fig. 1 is a circuit diagram of a related art power supply and data transmission apparatus inside a home appliance;

fig. 2 is a schematic structural diagram of a power supply and data transmission apparatus according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a power supply and data transmission apparatus according to a second embodiment of the present application;

fig. 4 is a block diagram illustrating basic functions of a power supply and data transmission apparatus according to a third embodiment of the present application;

fig. 5 is a schematic structural diagram of a power supply and data transmission device according to a third embodiment of the present application.

Detailed Description

Fig. 1 is a circuit diagram of a related art power supply and data transmission apparatus inside a home appliance, as seen from fig. 1, the apparatus including: a first control module 101, a second input module 102, a connection harness 103, a second input module 104, and a second control module 105, wherein:

the first control module 101 and the first input module 102 are respectively electrically connected through a first connection line 1061, a second connection line 1062 and a third connection line 1063, the first input module 102 and the connection harness 103 are respectively electrically connected through a fourth connection line 1064 and a fifth connection line 1065, the connection harness 103 and the second input module 104 are respectively electrically connected through a sixth connection line 1066 and a seventh connection line 1067, and the second input module 104 and the second control module 105 are respectively electrically connected through an eighth connection line 1068 and a ninth connection line 1069.

In the transmission device shown in fig. 1, the first connection line 1061, the fourth connection line 1064, the sixth connection line 1066, and the ninth connection line 1069 belong to the same line, the second connection line 1062, the fourth connection line 1064, the sixth connection line 1066, and the eighth connection line 1068 belong to the same line, and the third connection line 1063, the fifth connection line 1065, and the seventh connection line 1067 belong to the same line.

The first control module 101 is configured to transmit INPUT DATA _ IN1 stored IN the first control module 101 to the second control module 105 while controlling a circuit power supply Voltage (VCC) or a Ground (GND) voltage of an electric wire output by the first INPUT module 102 according to a Pulse high-low level IN a Pulse-Width Modulation INPUT (PWM _ INPUT); wherein:

the first control module 101 transmits the INPUT DATA _ IN1 to the second control module 105 through the first connection line 1061, the fourth connection line 1064, the sixth connection line 1066, and the ninth connection line 1069, and when the first control module 101 controls the pulse IN PWM _ INPUT to be at a high level, the first INPUT module 102 outputs VCC, and transmits the VCC to the second control module 105 through the fourth connection line 1064, the sixth connection line 1066, and the eighth connection line 1068.

Similarly, when the first control module 101 controls the pulse in the PWM _ INPUT to be at a low level, the first INPUT module 102 outputs a GND voltage, and the GND voltage is transmitted to the second INPUT module 104 through the fifth connection line 1065 and the seventh connection line 1067.

The second input module 104 is configured to receive the VCC or the GND voltage, and when the second input module 104 receives the GND voltage, full-wave rectification is performed on the GND voltage through a diode built in the second input module to obtain an Analog Ground (AGND) voltage.

Similarly, when the second input module 104 receives VCC, the VCC is full-wave rectified by a built-in diode thereof to obtain a supply Voltage (VDD) of the Device, where the VDD is a supply Voltage of the second control module 105; wherein the VDD may be a voltage of 5V.

Here, while the second control module 105 receives the dc VDD, it also receives the DATA input DATA _ IN1 transmitted from the first control module 101 through the first connection line 1061, the fourth connection line 1064, the sixth connection line 1066, and the ninth connection line 1069, and the second control module 105 uses its built-IN DATA microprocessor DATA _ OUT1 to obtain the command to be executed by the household appliance, such as an opening command, a closing command, a heating command, or a heat preservation command, from the input DATA _ IN 1.

As can be understood from the above description and fig. 1, in the current power supply and data transmission device inside the household appliance, not only the data to be transmitted is stored in the first control module 101 in advance, but also a separate connection line is required between the first control module 101 and the first input module 102 to transmit data, and a separate connection line is also required between the connection harness 104 and the second control module 105 to transmit data.

IN addition, while the first control module 101 controls the DATA INPUT DATA _ IN1 to be transmitted to the second control module 105 for command acquisition, the acquisition of the voltage of 5V or AGND voltage is also performed, i.e., if the first control module 101 controls the pulse level of PWM _ INPUT to be high, the VDD is output from the second control module 105.

Accordingly, if the pulse level of PWM _ INPUT in the first control module 101 is low, the second control module 105 outputs the AGND voltage. It can be seen that the apparatus of fig. 1 cannot achieve data transmission and acquire the VDD and AGND voltages.

Based on this, this application provides the technical scheme that can solve the problem that the wiring that obtains 5V voltage and AGND voltage and the interconnecting link that carries out data transmission set up alone and the wiring that produces is complicated, with high costs, can realize carrying out data transmission, obtain 5V voltage and AGND voltage for the household electrical appliances supply power.

In order to make the objects, technical solutions and advantages of the present application clearer, specific technical solutions of the present application will be described in further detail below with reference to the accompanying drawings in the embodiments of the present application. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.

Example one

An embodiment of the present application provides a power supply and data transmission device, and fig. 2 is a schematic structural diagram of the power supply and data transmission device provided in the embodiment of the present application, and as shown in fig. 2, the device at least includes: a first control module 201, a first input module 202, a second input module 203, and a second control module 204, wherein:

the first control module 201 is electrically connected to the first input module 202, the first input module 202 is electrically connected to the second input module 203, and the second input module 203 is electrically connected to the second control module 204.

The first control module 201 is configured to control at least two input pulse sequences to perform high-low level conversion simultaneously according to a preset communication protocol to generate data to be transmitted, and input the at least two input pulse sequences and the data to be transmitted to the first input module. In an implementation, the at least two input pulse sequences may be two pulse sequences with the same pulse period and opposite pulse levels.

In this embodiment, the first control module 201 is a main controller, and the first control module 201 controls the high and low levels of at least two input pulse sequences to be converted simultaneously according to a preset communication protocol, so as to generate data to be transmitted. In an implementation process, the at least two input pulse sequences may be provided by a pulse sequence generation module built in the first control module 201, or may be provided by a pulse sequence generation module externally connected to the first control module 201, which is not limited herein.

The first input module 202 is configured to generate a first voltage according to at least two input pulse sequences, and input the first voltage and the data to be transmitted to the second input module. In implementation, the first voltage is a supply voltage for a circuit in the apparatus, and the first voltage may be comprised of VCC and GND voltages.

Here, the first input module 202 outputs a first voltage and data to be transmitted according to the at least two input pulse sequences through a push-pull circuit scheme.

Here, since it is necessary to obtain VDD and AGND voltages, a push-pull circuit scheme is used in the power supply and data transmission apparatus of the present embodiment. In general, the push-pull circuit comprises two symmetrical transistors, the structure is simple, the utilization rate is high, only one transistor is conducted each time in work, and the conduction loss is small, so that the push-pull circuit scheme is selected to be used conveniently and quickly, and the complexity and the feasibility of the circuit in the device are not influenced.

The second input module 203 is configured to convert the first voltage into a second voltage, and input the data to be transmitted to the second control module 204; wherein the second voltage is at least a supply voltage of the second control module 204.

Here, the second input module 204 rectifies the first voltage through a full-bridge rectification scheme to obtain a second voltage. In an implementation, the second voltage may be comprised of VDD and AGND voltages.

Here, the full-bridge rectification scheme is adopted, because the full-bridge rectification scheme can convert alternating current into direct current, the rectification efficiency is high, the stability is good, the second voltage for supplying power to the second control module 205 can be obtained more flexibly and rapidly, and therefore the full-bridge rectification scheme is used in the device of the embodiment.

The second control module 204 is configured to determine an execution instruction corresponding to the data to be transmitted, and control execution of the execution instruction; the execution instruction can be an opening instruction, a closing instruction, a heating instruction, a heat preservation instruction or the like. In the implementation process, the second control module 204 may determine, according to a communication protocol preset by itself, an execution instruction corresponding to the data to be transmitted.

By adopting the technical scheme of the embodiment of the application, the obtaining line of VDD (for example, 5V voltage) required by power supply of the household appliance, the obtaining line of the AGND voltage and the communication line required by data transmission are shared, and the corresponding instructions of actions such as opening, closing or heating required to be executed by the household appliance can be sent while the VDD and the AGND voltage are provided for the household appliance without independently arranging the communication line for data transmission, so that the quantity of wires can be reduced, the requirements of the power supply and data transmission device on the internal space of the household appliance are greatly reduced, and the cost can be reduced.

Example two

The embodiment of the present application provides a power supply and data transmission device, fig. 3 is a schematic diagram of a structure of a power supply and data transmission device provided by the second embodiment of the present application, as shown in fig. 3, the power supply and data transmission device is applied to the inside of a household appliance such as an electric cooker or an electric pressure cooker or is externally connected with a household appliance such as an electric cooker or an electric pressure cooker, and the device at least comprises: a first control module 301, a first input module 302, a connection unit 303, a second input module 304, and a second control module 305, wherein:

the first input module 302 includes at least: a first input unit 3021 and a second input unit 3022; the second input module 304 at least comprises a full-bridge rectification circuit 3042, the full-bridge rectification circuit 3042 at least comprises: a first rectification circuit 30421 and a second rectification circuit 30422.

The input end of the first input unit 3021 and the input end of the second input unit 3022 are electrically connected to the two output ends of the first control module 301, the output end of the first input unit 3021 and the output end of the second input unit 3022 are electrically connected to the two input ends of the connection unit 303, and the two output ends of the connection unit 303 are electrically connected to the input end of the first rectification circuit 30421 and the second rectification circuit 30422.

In this embodiment of the application, the first control module 301 is configured to control at least two input pulse sequences to perform high-low level conversion simultaneously according to a preset communication protocol to generate data to be transmitted, and input the at least two input pulse sequences and the data to be transmitted to the first input module 302.

In the implementation process, the first control module 301 controls the pulse duration, the pulse rise time, and/or the pulse leading edge time of each pulse in the at least two input pulse sequences according to a preset communication protocol, so that the high and low levels of the at least two input pulse sequences are simultaneously switched, and data to be transmitted is generated according to the high and low level switching of the at least two input pulse sequences. The first input module 302 is configured to generate a first voltage according to the at least two input pulse sequences, and input the first voltage and the data to be transmitted to the second input module 304; wherein the at least two input pulse trains may include a first input pulse train and a second input pulse train, and the first voltage may include a first circuit voltage and a second circuit voltage.

The first input unit 3021 is configured to generate a first circuit voltage according to a first input pulse sequence. In an implementation, the first circuit voltage may include a VCC or GND voltage.

The second input unit 3022 is configured to generate a second circuit voltage according to a second input pulse sequence. In an implementation, the second circuit voltage may include a GND voltage or a VCC voltage. In the implementation process, the data to be transmitted generated by the first control module 301 may be input to the second input module 304 together with the first circuit voltage, and may also be input to the second input module 304 together with the second circuit voltage.

The first input unit 3021 and the second input unit 3022 each include at least one push-pull circuit for outputting a first circuit voltage or a second circuit voltage according to a high level of a pulse in the first input pulse train or the second input pulse train.

Here, the first input pulse train and the second input pulse train have the same pulse period and opposite pulse levels. In an implementation, the first INPUT pulse sequence may be a first pulse width modulation INPUT PWM _ INPUT1, the second INPUT pulse sequence may be a second pulse width modulation INPUT PWM _ INPUT2, and PWM _ INPUT1 and PWM _ INPUT2 are two pulse sequences with the same pulse period and opposite pulse levels. In an implementation process, when the first circuit voltage output by the first input unit 3021 is VCC, the second circuit voltage output by the second input unit 3022 is GND voltage; accordingly, when the first circuit voltage output from the first input unit 3021 is the GND voltage, the second circuit voltage output from the second input unit 3022 is VCC.

In contrast, for at least one push-pull circuit included in each of the first input unit 3021 and the second input unit 3022, in the present embodiment, each push-pull circuit includes N first transistors, and the N first transistors are connected in a push-pull manner; wherein the first transistor may be a triode.

When the first transistor is conducted, the first transistor is used for outputting a first circuit voltage or a second circuit voltage according to a pulse high level in the first input pulse sequence or the second input pulse sequence, the first circuit voltage and the second circuit voltage form a first voltage, and the first voltage is a power supply voltage of a circuit in the device; wherein N is a positive integer greater than 1. In the implementation process, the value of N may be 2.

In an implementation process, the first input module 302 may include VCC and GND voltages according to a first voltage output by a high-low level of a pulse in the first input pulse sequence and the second input pulse sequence, and inputs the output first voltage and the data to be transmitted to the second input module 304.

In this embodiment, the first input module 302 and the second input module 304 are electrically connected through a connection unit 303.

The connection unit 303 includes Q connection lines, and the connection lines are used to transmit the first voltage and the data to be transmitted, where Q is a positive integer. In an implementation process, the number of Q may be the same as the number of input units in the first input module 302, for example, when there are two input units in the first input module 302, Q is 2, that is, the output end of the first input unit 3021 may be electrically connected to one input end of the second input module 304 through a first connection line, and the output end of the second input unit 3022 may be electrically connected to the other input end of the second input module 304 through a second connection line.

In an implementation process, the number of the input ends of the second input module 304 may be the same as the number of the connection lines included in the connection unit 303, and the input ends are electrically connected in a one-to-one correspondence manner.

The second input module 304 is at least internally provided with a current-limiting resistor 3041, and the current-limiting resistor 3041 is used for limiting the current of the branch where the data to be transmitted is located.

The second input module 304 further includes at least one full-bridge rectification circuit 3042, where the full-bridge rectification circuit 3042 is configured to perform full-wave rectification on the received first voltage to obtain a second voltage; wherein the second voltage is at least a supply voltage of the second control module.

In the embodiment of the present application, the full-bridge rectification circuit 3042 includes M second transistors, and the M second transistors are butted two by two to form a first rectification circuit 30421 and a second rectification circuit 30422; where M may be an integer divisible by 2, and the second transistor may be a diode.

And when the second transistor is conducted, the second transistor is used for carrying out full-wave rectification on the received first voltage to obtain a second voltage. In an implementation process, since the full-bridge rectification circuit includes a first rectification circuit 30421 and a second rectification circuit 30422, and two output terminals of the connection unit 303 are electrically connected to an input terminal of the first rectification circuit 30421 and an input terminal of the second rectification circuit 30422, when each rectification circuit includes at least two butt-jointed second transistors and M is an integer divisible by 2, a value of M may be 4. The second voltage may be VDD and AGND voltage. In the implementation process, when the second transistor is turned on, if the received first voltage is VCC, VDD is output; similarly, if the received first voltage is the GND voltage, the AGND voltage is output.

In addition, the full-bridge rectification circuit 3042 is connected with at least one capacitor 3043, and the capacitor 3043 is used for supplying power to the second control module 305.

The second control module 305 is at least internally provided with a data micro-control unit 3051, and the data micro-control unit 3051 is configured to determine an execution instruction corresponding to the data to be transmitted according to a communication protocol preset by the second control module, and control execution of the execution instruction. In the implementation process, the data micro-control unit 3051 may determine, according to a preset communication protocol, an execution instruction corresponding to the data to be transmitted, where the execution instruction may be an opening instruction, a closing instruction, a heating instruction, a heat preservation instruction, or the like.

After acquiring the execution instruction, the second control module 305 may also use other built-in corresponding control units to control the household appliance to execute corresponding actions of the execution instruction, such as turning on, turning off, heating or keeping warm.

The second control module 305 is further configured to control the second voltage to supply power to peripheral or external devices of the apparatus. In the implementation process, the device described in the present application may be considered as being built in a household appliance, or as being an external device of the household appliance, and is not limited herein.

In the device that embodiment two provided, utilize the push-pull circuit can obtain VCC, GND voltage and wait to transmit data simultaneously according to at least two input pulse sequences to circuit structure is simple, the high-usage, utilizes full-bridge rectifier circuit to carry out full-wave rectification to VCC and GND voltage in addition, in order to obtain VDD and AGND voltage, not only rectification efficiency is high, and stability is good. The device provided by the second embodiment can not only provide VDD and AGND voltages for the household appliance, but also send the instruction required to be executed by the household appliance, and can reduce the number of wires and cost.

EXAMPLE III

Based on the second embodiment, a third embodiment of the present application further provides a power supply and data transmission device, which is applied to a household appliance such as an electric cooker or an electric pressure cooker or is externally connected to the household appliance such as the electric cooker or the electric pressure cooker, fig. 4 is a basic functional description of a module of the power supply and data transmission device provided in the third embodiment of the present application, and as shown in fig. 4, the device includes: a first control module 401, a first input module 402, a second input module 403, a third input module 405, and a second control module 406; wherein:

fig. 5 is a schematic structural diagram illustrating a power supply and data transmission apparatus according to a third embodiment of the present application; as can be seen in fig. 5, the apparatus further comprises a connection harness 404, the connection harness 404 comprising two connection wires, in turn a first connection wire 4071 and a second connection wire 4072; the third input module 405 includes: the rectifier circuit comprises a first rectifier circuit 4051 and a second rectifier circuit 4052, wherein the first rectifier circuit 4051 comprises a diode D1 and a diode D2, the second rectifier circuit 4052 comprises a diode D3 and a diode D4, the diode D1 is in butt joint with a diode D2, and the diode D3 is in butt joint with a diode D4.

The input end of the first connection line 4071 is electrically connected to the OUTPUT end OUTPUT1 of the first input module 402, the input end of the second connection line 4072 is electrically connected to the OUTPUT end OUTPUT2 of the second input module 403, the OUTPUT end of the first connection line 4071 is electrically connected to the input end of the first rectifying circuit 4051, and the OUTPUT end of the second connection line 4072 is electrically connected to the input end of the second rectifying circuit 4052.

In fig. 5, the first control module 401 is configured to control a first PWM INPUT PWM _ INPUT1 and a second PWM INPUT PWM _ INPUT2 to perform high-low level conversion according to a preset communication protocol to generate DATA to be transmitted, and INPUT the PWM _ INPUT1, PWM _ INPUT2 and the DATA to be transmitted to the second INPUT module 402; PWM _ INPUT1 and PWM _ INPUT2 are two pulse sequences having the same pulse period and opposite pulse levels.

Here, when the first control module 401 controls the level of the PWM _ INPUT1 to be a high level and controls the level of the PWM _ INPUT2 to be a low level, the first INPUT module 402 outputs VCC and the second INPUT module 403 outputs GND voltage; similarly, when the first control module 401 controls the level of the PWM _ INPUT1 to be low and the level of the PWM _ INPUT2 to be high, the first INPUT module 402 outputs the GND voltage and the second INPUT module 403 outputs the VCC voltage.

And, while the first INPUT module 402 outputs the GND voltage or VCC and the second INPUT module 403 outputs the VCC voltage or GND voltage, the first control module 401 is further configured to perform high-low level change simultaneously by controlling the PWM _ INPUT1 and the PWM _ INPUT2 according to a preset communication protocol to generate DATA to be transmitted.

In the implementation, when the pulse levels in PWM _ INPUT1 and PWM _ INPUT2 are inverted simultaneously, for example, two pulse levels one high and one low are converted into two pulse levels one low and one high simultaneously, the output VDD and AGND voltages of the third INPUT module 405 are not affected, but one DATA to be transmitted DATA may be generated.

Similarly, in the implementation process, in order to ensure that the GND voltage or VCC can be output according to the high and low levels of PWM _ INPUT1 or PWM _ INPUT2, each of the first INPUT module 402 and the second INPUT module 403 in this embodiment includes a push-pull circuit, each push-pull circuit includes 2 triodes, and the push-pull circuits are connected in a push-pull manner between the 2 triodes, specifically:

the first push-pull circuit 4021 in the first input module 402 includes: a transistor Q1, a transistor Q2, and the second push-pull circuit 4031 in the second input module 403 includes: the transistor Q3, the transistor Q4, the transistor Q1 and the transistor Q2 are connected in a push-pull mode; similarly, the transistor Q3 and the transistor Q4 are also connected in a push-pull manner.

With this arrangement, when the first control module 401 controls the pulse level in the PWM _ INPUT1 to be high and controls the pulse level in the PWM _ INPUT2 to be low, the transistor Q1 is turned on, the transistor Q2 is turned off, the transistor Q3 is turned off, and the transistor Q4 is turned on, at this time, VCC is output from the first INPUT module 402, and GND voltage is output from the second INPUT module 403.

Similarly, when the first control module 401 controls the pulse level in the PWM _ INPUT1 to be low and controls the pulse level in the PWM _ INPUT2 to be high, the transistor Q1 is turned off, the transistor Q2 is turned on, the transistor Q3 is turned on, and the transistor Q4 is turned off, at this time, the first INPUT module 402 outputs the GND voltage, and the second INPUT module 403 outputs the VCC voltage. That is to say, when the first control module 401 controls PWM _ INPUT1 and PWM _ INPUT2 to output a pulse to the first INPUT module 402 and the second INPUT module 403, VCC and GND voltages are obtained, and the obtained VCC and GND voltages are transmitted to the third INPUT module 405 through the first connection wire 4071 and the second connection wire 4072, and meanwhile, DATA to be transmitted, which is generated by the first INPUT module 402 and the second INPUT module 403, is also transmitted to the third INPUT module 405 through the first connection wire 4071 or the second connection wire 4072.

The third input module 405 includes a full-bridge rectifier circuit 4051, the full-bridge rectifier circuit 4051 includes four diodes, the four diodes are in two-to-two butt joint to form a first rectifier circuit 4051 and a second rectifier circuit 4052, and the two diodes included in the first rectifier circuit 4051 can ensure full-wave rectification of the VCC or GND voltage transmitted through the first connection line 4071 to obtain the VDD or AGND voltage; similarly, the second rectifying circuit 4052 includes two diodes, which can also ensure full-wave rectification of the GND voltage or VCC transmitted through the second connection line 4072 to obtain AGND voltage or VDD.

The third input module 405 does not perform any processing on the DATA to be transmitted, but only performs a wire transmission function, that is, the DATA to be transmitted is transmitted to the second control module 406; in order to ensure that the branch where the DATA to be transmitted is located is not burned in the transmission process, a current-limiting resistor 4052 is connected in the branch, and the current-limiting resistor 4052 may be used to limit the current of the branch, so as to protect the branch from being burned.

In order to ensure that the obtained VDD can supply power to the second control module 406, the full-bridge rectifier circuit 4051 is connected with a capacitor 4053, and when the corresponding dc power of the VDD or AGND voltage is connected to the capacitor 4053, the capacitor 4053 is configured to cut off the dc power to supply power to the second control module 406 connected to the third input module 405.

The second control module 406 is configured to control the VDD to supply power to peripheral or external devices of the apparatus; wherein the VDD may be a voltage of 5V.

In addition, a DATA micro-control unit DATA _ MCU4061 is further built in the second control module 406, the third input module 405 transmits the DATA to be transmitted to the second control module 406, and substantially transmits the DATA to be transmitted to the DATA micro-control unit DATA _ MCU4061 in the second control module 406, and the DATA micro-control unit DATA _ MCU4061 is configured to determine an execution instruction corresponding to the DATA to be transmitted according to a preset communication protocol, such as a start instruction, a close instruction, a heating instruction or a heat preservation instruction, and further control the household appliance to execute corresponding actions of the execution instruction, such as start, close, heat or heat preservation. In the implementation process, the device described in the present application may be considered as being built in a household appliance, or as being an external device of the household appliance, and is not limited herein.

It should be noted that the first input module 402 corresponds to the first input unit 3021 in the second embodiment, the second input module 403 corresponds to the second input unit 3022 in the second embodiment, the third input module 405 corresponds to the second input module 203 in the first embodiment and the second input module 304 in the second embodiment, respectively, and the connection harness 404 corresponds to the connection unit 303 in the second embodiment.

In the apparatus provided in the third embodiment, when two pulse sequences with the same pulse period and opposite pulse levels are used to simultaneously send a pulse to the first input module 402 and the second input module 403, the push-pull circuits included in the first input module 402 and the second input module 403 are used to simultaneously obtain VCC, GND voltage, and DATA to be transmitted, and then full-wave rectification is performed on the VCC and GND voltages to obtain VDD and AGND voltages; therefore, corresponding instructions of actions such as opening, closing or heating required to be executed by the household appliance can be sent while the VDD and the AGND voltages are provided for the household appliance, the device of the embodiment is more flexible and reliable to realize due to the two pulse width modulation inputs and the two connecting wires, the number of the conducting wires can be reduced, the requirements of the power supply and data transmission device on the inner space of the household appliance are greatly reduced, and the cost can be reduced.

The above description is only for the preferred embodiment of the present application, and is not intended to limit the scope of the present application.

Claims (10)

1. A power supply and data transmission apparatus, the apparatus comprising: a first control module, a first input module, a second input module, and a second control module,

the first control module is electrically connected with the first input module, the first input module is electrically connected with the second input module, and the second input module is electrically connected with the second control module;

the first control module is used for controlling at least two input pulse sequences to simultaneously perform high-low level conversion according to a preset communication protocol so as to generate data to be transmitted, and inputting the at least two input pulse sequences and the data to be transmitted to the first input module;

the first input module is used for generating a first voltage according to the at least two input pulse sequences and inputting the first voltage and the data to be transmitted to the second input module; wherein the first voltage is a supply voltage for circuitry in the device;

the second input module is used for converting the first voltage into a second voltage and inputting the data to be transmitted to the second control module; wherein the second voltage is at least a supply voltage of the second control module;

the second control module is used for determining an execution instruction corresponding to the data to be transmitted and controlling the execution of the execution instruction.

2. The power supply and data transmission device as claimed in claim 1, wherein the first input module and the second input module are electrically connected via a connection unit, wherein,

the connecting unit comprises Q connecting wires, the connecting wires are used for transmitting the first voltage and the data to be transmitted, and Q is a positive integer.

3. The power supply and data transmission device according to claim 2, wherein the first input module comprises at least a first input unit and a second input unit, wherein an input terminal of the first input unit and an input terminal of the second input unit are electrically connected to two output terminals of the first control module, respectively, and an output terminal of the first input unit and an output terminal of the second input unit are electrically connected to two input terminals of the connection unit, respectively;

inputting the at least two input pulse sequences to the input end of the first input unit and the input end of the second input unit through the two output ends of the first control module;

and the first voltage and the data to be transmitted are input to two input ends of the connecting unit through an output end of the first input unit and an output end of the second input unit.

4. A power supply and data transmission apparatus according to claim 3, wherein the at least two input pulse sequences comprise at least a first input pulse sequence and a second input pulse sequence, the first input unit and the second input unit respectively comprise at least a push-pull circuit, and the push-pull circuit is configured to output a first voltage according to a high level of a pulse in the first input pulse sequence or the second input pulse sequence; wherein the first input pulse sequence and the second input pulse sequence have the same pulse period and opposite pulse levels.

5. The power supply and data transmission device as claimed in claim 4, wherein the push-pull circuit comprises N first transistors, and the N first transistors are connected in a push-pull manner;

and when the first transistor is conducted, the first transistor is used for outputting a first voltage according to the high level of the pulse in the first input pulse sequence or the second input pulse sequence, and N is a positive integer greater than 1.

6. The power supply and data transmission device as claimed in claim 1, wherein the second input module comprises at least one full-bridge rectifying circuit, and the full-bridge rectifying circuit is configured to perform full-wave rectification on the received first voltage to obtain the second voltage.

7. The power supply and data transmission device according to claim 6, wherein the full-bridge rectification circuit comprises M second transistors, and the M second transistors are butted two by two;

and when the second transistor is conducted, the second transistor is used for carrying out full-wave rectification on the received first voltage to obtain a second voltage, and M is an integer capable of dividing 2.

8. The device according to claim 6, wherein the full-bridge rectifying circuit is connected to at least one capacitor, and the capacitor is used for supplying power to the second control module.

9. The power supply and data transmission device according to any one of claims 1 to 8, wherein at least one current limiting resistor is built in the second input module, and the current limiting resistor is used for limiting the current of a branch where the data to be transmitted is located.

10. The power supply and data transmission device according to any one of claims 1 to 8, wherein at least a data micro-control unit is built in the second control module, and the data micro-control unit is configured to determine an execution instruction corresponding to the data to be transmitted according to the preset communication protocol.