Clothing treatment combined device

Abstract

The utility model discloses a clothes processing combination device, which belongs to the field of electricity, solves the problem of low applicability in a single logic alternative power supply mode in the prior art, and adopts the technical scheme that a first clothes processing device is provided with a first power supply circuit, and a second clothes processing device is provided with a second power supply circuit; the first clothes processing device and the second clothes processing device share one operation panel, the operation panel is electrically connected to the output end of the power supply selection circuit, the first input end of the power supply selection circuit is electrically connected with the first power supply circuit, and the second input end of the power supply selection circuit is electrically connected with the second power supply circuit. And the operation panel selects one of the first power supply circuit and the second power supply circuit through the power supply selection circuit to obtain a working power supply. The power supply circuit is mainly used for supplying power to the operation panel through the power supply selection circuit, so that different power supply circuits can selectively supply power to the operation panel, and the applicability is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply circuits, in particular to a clothing processing combined device. Background Art

[0002] With the improvement of living standards, the demand for intelligent home appliances is growing, and integrated clothing processing devices are becoming more and more popular. If multiple operation panels are used, the operation is cumbersome and the cost is high, so the control circuits of multiple devices are integrated together to achieve the function of one operation panel controlling multiple devices.

[0003] The existing patent with announcement number CN219059437U discloses a power supply circuit for the operating panel of a clothing processing combination device. By adopting a complex method of two anti-reverse connection circuits and multiple switches, different power modules can be used to power the operating panel. When the first power module and the second power module are powered at the same time, the first power module can be used to power the operating panel first. After the first power module loses power, the second power module can be used to replace the first power module to power the operating panel.

[0004] The above technical solution has the following defects: the circuits of the multiple clothing processing combination devices are complex, and have low applicability and single logic. It is impossible to select different power modules to power the operation panel for different usage environments. When the first power module suddenly resumes power supply, the first power module and the second power module will supply power at the same time, and a power supply conflict will occur, which may cause excessive current in the power supply circuit, resulting in damage to electrical components in the power supply circuit and even fire. Utility Model Content

[0005] The purpose of the utility model is to provide a clothing processing combination device, which solves the problem of low applicability in the single logic relay power supply mode in the prior art, and realizes that different power supply circuits can be selected to power the operation panel, which has a wider applicability.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a clothing processing combination device, comprising at least a first clothing processing device and a second clothing processing device, the first clothing processing device having a first power supply circuit, the second clothing processing device having a second power supply circuit, the first clothing processing device and the second clothing processing device sharing an operation panel, the operation panel being electrically connected to the output end of a power supply selection circuit, the first input end of the power supply selection circuit being electrically connected to the first power supply circuit, the second input end of the power supply selection circuit being electrically connected to the second power supply circuit, the operation panel selecting one of the first power supply circuit and the second power supply circuit through the power supply selection circuit to obtain a working power supply.

[0007] After adopting the above technical scheme, the utility model has the following advantages: the power supply selection circuit is used to power the operation panel, so that the power circuits of multiple different clothing processing devices can power the same operation panel. When a clothing processing device fails or loses power, other clothing processing devices can be selected to power the operation panel normally. At the same time, the function of selecting power circuits with different properties to power the same operation panel can be realized. It is no longer limited to a single power supply logic, and can still be applicable after the number of clothing processing devices is increased, and the applicability is wider.

[0008] Furthermore, the power supply selection circuit includes a switch control circuit, a first switch circuit and a second switch circuit, the first switch circuit is electrically connected between the first power supply circuit and the operation panel, the second switch circuit is electrically connected between the second power supply circuit and the operation panel, the signal output end of the switch control circuit is electrically connected to the signal control end of the first switch circuit and the signal control end of the second switch circuit, respectively, and the switch control circuit obtains working power from the first power supply circuit or the second power supply circuit.

[0009] The adoption of the above-mentioned technical solution avoids the switch control circuit receiving a single current source, ensuring that each clothing processing device can independently power the switch control circuit, thereby ensuring that when one of the clothing processing devices is powered off, the switch control circuit can select other clothing processing devices to continue to power the operation panel. Therefore, as long as one clothing processing device has power, the switch control circuit can control the operation panel to continue to be powered.

[0010] Furthermore, the switch control circuit includes a first chip and a second chip, the first chip and the second chip communicate with each other, the first chip obtains working power from the first power supply circuit, and the second chip obtains working power from the second power supply circuit, and the signal output end of the switch control circuit includes a signal output pin of the first chip and a signal output pin of the second chip, the signal output pin of the first chip is electrically connected to the signal control end of the first switch circuit, and the signal output pin of the second chip is electrically connected to the signal control end of the second switch circuit.

[0011] By adopting the above-mentioned technical solution, the on and off of the two switch circuits can be controlled by the chip respectively. When the first power circuit fails and the power is cut off, the first chip cannot receive the pulse communication signal of the second chip, and the second power circuit supplies power to the operation panel. When the first power circuit can continue to supply power to the operation panel, the second chip can receive the pulse communication signal sent to it from the first chip. According to the pre-set logical sequence, the first chip controls the first switch circuit to supply power to the operation panel, and the second chip controls the second switch circuit to cut off power, or the second chip controls the second switch circuit to continue to supply power to the operation panel, and the first chip keeps the first switch circuit off. Through this mutual communication between the two chips, it can be ensured that only one power circuit supplies power to the operation panel at the same time, avoiding power supply conflicts, thereby avoiding excessive current passing through the operation panel and damaging the life of electrical components, and effectively ensuring the service life of the electrical components of the operation panel. Moreover, the use of chip control can be expanded to the case where a larger number of clothing processing devices share one operation panel.

[0012] Furthermore, the control priority of the first chip is higher than that of the second chip. Both the first chip and the second chip are in a power-on state. The first chip has a first power-on state of keeping the first switch circuit turned on and continuously sending a pulse communication signal to the second chip to keep the second switch circuit of the second chip turned off.

[0013] By adopting the above technical solution, by setting the priority, it is possible to avoid the first chip and the second chip from sending conduction signals to their respective connected switch circuits at the same time, thereby avoiding resource waste or safety risks caused by supplying power to the operation panel at the same time.

[0014] Furthermore, the second chip has a second power-on state of keeping the second switch circuit turned on after failing to receive the pulse communication signal sent by the first chip.

[0015] By adopting the above technical solution, when the first chip is not powered on or fails, the second chip cannot receive the pulse communication signal sent by the first chip, and controls the second switch circuit to conduct to supply power to the operation panel in time, thereby ensuring the normal operation of the operation panel.

[0016] Furthermore, the first chip has a third power-on state in which a pulse communication signal is continuously sent to the second chip when the first power supply circuit is powered on and the second power supply circuit is powered off, so that the second switch circuit is kept disconnected after the second chip is powered on; or, the second chip has a fourth power-on state in which a pulse communication signal is continuously sent to the first chip when the second power supply circuit is powered on and the first power supply circuit is powered off, so that the first switch circuit is kept disconnected after the first chip is powered on.

[0017] The above-mentioned technical solution is adopted to avoid the situation where multiple power circuits supply power to the operation panel at the same time. At the same time, the power supply method can be selected according to the use environment, and the power use is more flexible. This ensures that when a power circuit fails, the power supply to the operation panel can be seamlessly connected, and it can also avoid affecting other running devices.

[0018] Further, the first switching circuit includes a first transistor, a second transistor, a first optocoupler and a second optocoupler, the collector of the first transistor is electrically connected to the first power supply circuit, the base of the first transistor is electrically connected to a signal output pin of the first chip, the emitter of the first transistor is electrically connected to the LED anode pin of the first optocoupler, the LED cathode pin of the first optocoupler is grounded, the photodetector collector pin of the first optocoupler is electrically connected to the first power supply circuit, the photodetector emitter pin of the first optocoupler is electrically connected to the positive pole of the operation panel, the collector of the second transistor is electrically connected to the first power supply circuit, the base of the second transistor is electrically connected to another signal output pin of the first chip, the emitter of the second transistor is electrically connected to the LED anode pin of the second optocoupler, the LED cathode pin of the second optocoupler is grounded, the photodetector collector pin of the second optocoupler is electrically connected to the negative pole of the operation panel, and the photodetector emitter pin of the second optocoupler is grounded.

[0019] By adopting the above-mentioned technical solution, the output end of the optocoupler is connected to the emitter of the transistor, so that the transistor can control the optocoupler to turn on and off the electrical signal. Through the cooperation of the optocoupler and the transistor, the electrical signal input by the first power supply circuit can be converted into an optical signal, and then the optical signal is converted into an electrical signal through the optocoupler, thereby realizing the transmission of the electrical signal and achieving the purpose of controlling the on and off of the first switch circuit. It has the advantages of simple circuit, rapid response, safety and reliability.

[0020] Further, the second switch circuit includes a third transistor, a fourth transistor, a third optocoupler and a fourth optocoupler, the collector of the third transistor is electrically connected to the second power supply circuit, the base of the third transistor is electrically connected to a signal output pin of the second chip, the emitter of the third transistor is electrically connected to the LED anode pin of the third optocoupler, the LED cathode pin of the third optocoupler is grounded, the photodetector collector pin of the third optocoupler is electrically connected to the second power supply circuit, the photodetector emitter pin of the third optocoupler is electrically connected to the positive pole of the operation panel, the collector of the fourth transistor is electrically connected to the second power supply circuit, the base of the fourth transistor is electrically connected to another signal output pin of the second chip, the emitter of the fourth transistor is electrically connected to the LED anode pin of the fourth optocoupler, the LED cathode pin of the fourth optocoupler is grounded, the photodetector collector pin of the fourth optocoupler is electrically connected to the negative pole of the operation panel, and the photodetector emitter pin of the fourth optocoupler is grounded.

[0021] By adopting the above-mentioned technical solution, the output end of the optocoupler is connected to the emitter of the transistor, so that the transistor can control the optocoupler to turn on and off the electrical signal. Through the cooperation of the optocoupler and the transistor, the electrical signal input by the second power supply circuit can be converted into an optical signal, and the optical signal is converted into an electrical signal through the optocoupler, thereby realizing the transmission of the electrical signal and achieving the purpose of controlling the on and off of the second switch circuit. It has the advantages of simple circuit, rapid response, safety and reliability.

[0022] Furthermore, the power supply selection circuit includes a relay, a control coil of the relay obtains working power from one of the first power supply circuit and the second power supply circuit, the relay has a first group of contacts and a second group of contacts, the first group of contacts is electrically connected between the first power supply circuit and the operation panel, and the second group of contacts is electrically connected between the second power supply circuit and the operation panel, and the relay has a first power-on state in which the first group of contacts is turned on and the second group of contacts is turned off when the first power supply circuit supplies power, and a second power-on state in which the second group of contacts is turned on and the first group of contacts is turned off when the second power supply circuit supplies power.

[0023] By adopting the above-mentioned technical solution, the conduction state of the circuit can be controlled by a relay. Different contacts can be automatically switched when the power is on or off, the power circuit can be flexibly converted, and the power supply can be selected through the relay. Compared with chip control, mechanical control has a longer life.

[0024] Furthermore, the operation panel is electrically connected to the power supply selection circuit via a voltage stabilizing circuit.

[0025] By adopting the above technical solution, it is possible to ensure that the output voltage of the power supply circuit remains basically unchanged when the voltage fluctuates or the load changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The utility model is further described below in conjunction with the accompanying drawings:

[0027] Figure 1 It is a schematic diagram of a clothes processing combined device of the utility model;

[0028] Figure 2 This is a circuit diagram of a clothes processing combined device of the utility model;

[0029] Figure 3 This is a connection diagram of the power supply selection circuit in the first embodiment of the utility model;

[0030] Figure 4 This is a connection diagram of the power supply selection circuit in the second embodiment of the present utility model; DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0032] The terms "first", "second", etc. (if any) in the specification and claims of the present utility model are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish a certain technical feature, it does not necessarily mean that it has "first". It should be understood that in the present utility model, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that in the present utility model, "multiple" refers to two or more. "And / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0033] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0034] like Figure 1 As shown, the utility model provides a clothes processing combined device, including a first clothes processing device 100 and a second clothes processing device 200, wherein the first clothes processing device 100 can be a washing machine, and the second clothes processing device 200 can be a drying machine. Figure 2As shown, the first clothing processing device 100 has a first power circuit 11, the second clothing processing device 200 has a second power circuit 21, the first clothing processing device 100 and the second clothing processing device 200 share an operation panel 300, the operation panel 300 is electrically connected to the output end of the power supply selection circuit 400, the first input end of the power supply selection circuit 400 is electrically connected to the first power circuit 11, the second input end of the power supply selection circuit 400 is electrically connected to the second power circuit 21, the operation panel 300 selects one of the first power circuit 11 and the second power circuit 21 to obtain a working power supply through the power supply selection circuit 400, and the power supply selection circuit 400 is used to power the operation panel 300, so that the power circuits of multiple different clothing processing devices can all power the same operation panel. When a clothing processing device fails or loses power, other clothing processing devices can be selected to normally power the operation panel, and at the same time, the function of selecting power circuits with different properties to power the same operation panel can be realized. The operation panel 300 can be arranged on the first laundry processing device 100 or the second laundry processing device 200, or can be arranged away from the first laundry processing device 100 and the second laundry processing device 200, for example, fixed on a wall or other location convenient for user operation and viewing.

[0035] Combination Figure 3 It can be seen that the power supply selection circuit 400 includes a switch control circuit 41, a first switch circuit 42 and a second switch circuit 43. The first switch circuit 42 is electrically connected between the first power supply circuit 11 and the operation panel 300, and the second switch circuit 43 is electrically connected between the second power supply circuit 21 and the operation panel 300. The signal output end of the switch control circuit 41 is electrically connected to the signal control end of the first switch circuit 42 and the signal control end of the second switch circuit 43 respectively. The switch control circuit 41 obtains the working power from the first power supply circuit 11 or the second power supply circuit 21.

[0036] It can be understood that the first clothing processing device 100 and the second clothing processing device 200 respectively have separate power input terminals respectively connected to the operation panel 300. It can be seen that this power supply selection circuit 400 is no longer limited to a single power supply logic, and can still be applicable after increasing the number of clothing processing devices. The clothing processing devices can be washing machines, dryers, etc., which have wider applicability. The setting of the switch control circuit 41 avoids the single source of received current and ensures that each clothing processing device can power the switch control circuit 41 separately to ensure that when one of the clothing processing devices is powered off, the switch control circuit 41 can select other clothing processing devices to continue to power the operation panel. Therefore, as long as one clothing processing device has power, the switch control circuit 41 can control to continue to power the operation panel 300. The specific number and type of clothing processing devices are not limited in the present invention.

[0037] In a specific embodiment, the switch control circuit 41 may be implemented in a variety of ways, which are described in detail below with reference to the accompanying drawings.

[0038] Embodiment 1:

[0039] like Figure 3 As shown, in this embodiment, the switch control circuit 41 includes a first chip 411 and a second chip 412. The first chip 411 and the second chip 412 can communicate with each other, and can communicate wirelessly or by wire. The first chip 411 obtains working power from the first power circuit 11, and the second chip 412 obtains working power from the second power circuit 21. The signal output end of the switch control circuit 41 includes a signal output pin of the first chip 411 and a signal output pin of the second chip 412. The signal output pin of the first chip 411 is electrically connected to the signal control end of the first switch circuit 42, and the signal output pin of the second chip 412 is electrically connected to the signal control end of the second switch circuit 43. The chip can control the on and off of the two switch circuits respectively. When the first power circuit is powered off, the first chip cannot receive the pulse communication signal from the second chip, and the second power circuit supplies power to the operation panel. When the first power circuit can continue to supply power to the operation panel, the second chip can receive the pulse communication signal sent to it from the first chip. According to the pre-set logical sequence, the first chip controls the first switch circuit to supply power to the operation panel, and the second chip controls the second switch circuit to power off, or the second chip controls the second switch circuit to continue to supply power to the operation panel, and the first chip keeps the first switch circuit powered off. Through this mutual communication between the two chips, it can be ensured that only one power circuit supplies power to the operation panel at the same time, avoiding power supply conflicts, thereby avoiding excessive current passing through the operation panel and damaging the life of electrical components, and effectively ensuring the service life of the electrical components of the operation panel. Moreover, the use of chip control can be expanded to the case where a larger number of clothing processing devices share one operation panel.

[0040] Optionally, in one embodiment, the control priority of the first chip 411 is selected to be higher than that of the second chip 412. In practical applications, the control priority of the second chip 412 may be selected to be higher than that of the first chip 411. If there are multiple clothing processing devices, the control priorities of multiple chips may be sorted and selected by analogy. It is understandable that by setting the priority, the first chip 411 and the second chip 412 may be prevented from simultaneously sending a conduction signal to the switch circuits connected to them, thereby avoiding wasting resources or safety risks caused by simultaneously powering the operation panel.

[0041] Under the premise that the control priority of the first chip is higher than that of the second chip, depending on whether the first chip is powered on, the on and off states of the two switch circuits are controlled by the two chips respectively, and there are two power-on states as follows:

[0042] First, both the first chip 411 and the second chip 412 are in a powered-on state, and the first chip 411 has a first powered-on state in which the first switch circuit is turned on and the pulse communication signal is continuously sent to the second chip 412 so that the second chip 412 keeps the second switch circuit 43 turned off; second, after the first chip 411 is powered off, the second chip 412 has a second powered-on state in which the second switch circuit 43 is turned on after failing to receive the pulse communication signal sent by the first chip 411. In this way, when the first chip is not powered on or fails, the second chip can control the second switch circuit to turn on to supply power to the operation panel in time because it fails to receive the pulse communication signal sent by the first chip, thereby ensuring the normal operation of the operation panel.

[0043] Regardless of whether the control priority of the first chip is higher than that of the second chip, the following two power-on states can be designed: one is that the first chip 411 has a third power-on state in which a pulse communication signal is continuously sent to the second chip 412 when the first power circuit 11 is powered and the second power circuit 21 is powered off, so that the second chip 412 is powered on and the second switch circuit 43 is kept disconnected; the other is that the second chip 412 has a fourth power-on state in which a pulse communication signal is continuously sent to the first chip 411 when the second power circuit 21 is powered and the first power circuit 11 is powered off, so that the first switch circuit is kept disconnected after the first chip 411 is powered on. This can effectively avoid the situation where multiple power circuits are simultaneously supplying power to the operation panel, and the power supply mode can be selected according to the use environment, making the use of electricity more flexible, ensuring that when a power circuit fails, the power supply to the operation panel can be seamlessly connected, and can also avoid affecting other running devices.

[0044] In a specific circuit, the first switch circuit 42 includes a first optical coupler PC1, a second optical coupler PC2, a first transistor Q1, a second transistor Q2, a first diode D1, a second diode D2, voltage divider resistors R1, R2, R11, and R21, wherein the collector of the first transistor Q1 is electrically connected to the output end VC1 of the first power supply circuit through the voltage divider resistor R11, the base of the first transistor Q1 is electrically connected to a signal output pin of the first chip 411 through the voltage divider resistor R1, the emitter of the first transistor Q1 is electrically connected to the LED anode pin of the first optical coupler PC1, the LED cathode pin of the first optical coupler PC1 is grounded, and the photodetector collector pin of the first optical coupler PC1 is electrically connected to the output of the first power supply circuit. Terminal VC1 is electrically conducted, the emitter pin of the photodetector of the first optical coupler PC1 is electrically conducted with the positive electrode of the operation panel through the first diode D1, the collector of the second transistor Q2 is electrically conducted with the output terminal VC1 of the first power supply circuit through the voltage-dividing resistor R21, the base of the second transistor Q2 is electrically conducted with another signal output pin of the first chip 411 through the voltage-dividing resistor R2, the emitter of the second transistor Q2 is electrically conducted with the LED anode pin of the second optical coupler PC2, the LED cathode pin of the second optical coupler PC2 is grounded GND1, the collector pin of the photodetector of the second optical coupler PC2 is electrically conducted with the negative electrode of the operation panel, and the emitter pin of the photodetector of the second optical coupler PC2 is grounded GND1 through the second diode D2.

[0045] The second switch circuit 43 includes a third optical coupler PC3, a fourth optical coupler PC4, a third transistor Q3, a fourth transistor Q4, a third diode D3, a fourth diode D4, voltage-dividing resistors R3, R31, R4, and R41, wherein the collector of the third transistor Q3 is electrically connected to the output terminal VC2 of the second power supply circuit 21 through the voltage-dividing resistor R31, the base of the third transistor Q3 is electrically connected to a signal output pin of the second chip 412 through the voltage-dividing resistor R3, the emitter of the third transistor Q3 is electrically connected to the LED anode pin of the third optical coupler, the LED cathode pin of the third optical coupler PC3 is grounded, and the photodetector collector pin of the third optical coupler PC3 is electrically connected to the output terminal VC2 of the second power supply circuit 21. The photodetector emitter pin of the third optocoupler PC3 is electrically connected to the positive electrode of the operation panel 300 through the third diode D3, the collector of the fourth transistor Q4 is electrically connected to the output terminal VC2 of the second power supply circuit 21 through the voltage-dividing resistor R41, the base of the fourth transistor Q4 is electrically connected to another signal output pin of the second chip 412 through the voltage-dividing resistor R4, the emitter of the fourth transistor Q4 is electrically connected to the LED anode pin of the fourth optocoupler PC4, the LED cathode pin of the fourth optocoupler PC4 is grounded GND2, the photodetector collector pin of the fourth optocoupler PC4 is electrically connected to the negative electrode of the operation panel 300, and the photodetector emitter pin of the fourth optocoupler PC4 is grounded GND2 through the fourth diode D4.

[0046] It can be understood that the output end of the optocoupler is connected to the emitter of the transistor, so that the transistor can control the optocoupler to turn on and off the electrical signal. Through the cooperation of the optocoupler and the transistor, the electrical signal input by the power supply circuit can be converted into an optical signal, and then the optical signal is converted into an electrical signal through the optocoupler, thereby realizing the transmission of the electrical signal and the on-off control of the switching circuit. It has the advantages of simple circuit, rapid response, safety and reliability.

[0047] For example, in one case, when the first switch circuit 42 has power and the second switch circuit 43 has no power, when the bases of the first transistor Q1 and the second transistor Q2 receive a high-level electrical signal from the first chip 411, the first chip 411 sends a pulse signal to the second chip 412, the first transistor Q1 and the second transistor Q2 are turned on, and the first optocoupler PC1 and the second optocoupler PC2 are turned on. At this time, the first switch circuit 42 is turned on, the first power supply circuit 11 supplies power to the operation panel 300, the second chip 412 has no power and does not output a control signal, and the third transistor Q3 and the fourth transistor Q4 are not turned on.

[0048] For example, in one case, when the first switch circuit 42 has no power and the second switch circuit 43 has power, the second chip 412 cannot receive the communication signal of the first chip 411, then the second chip 412 outputs a high-level electrical signal, and after the bases of the third transistor Q3 and the fourth transistor Q4 receive the high-level electrical signal output by the second chip 412, the third transistor Q3 and the fourth transistor Q4 are turned on, and the third optocoupler PC3 and the fourth optocoupler PC4 are turned on. At this time, the second switch circuit 43 is turned on, and the second power supply circuit 21 supplies power to the operation panel 300. The first chip 411 has no power and does not output a control signal, and the first transistor Q1 and the second transistor Q2 are not turned on.

[0049] For example, in one case, when the first switch circuit 42 is powered and the second switch circuit 43 is powered, in this embodiment, the first chip 411 has a control priority, the first chip 411 sends a communication signal to the second chip 412, and the second chip 412 does not output a control signal after receiving the communication signal. After the bases of the first transistor Q1 and the second transistor Q2 receive the high-level electrical signal from the first chip 411, the first transistor Q1 and the second transistor Q2 are turned on, and the first optocoupler PC1 and the second optocoupler PC2 are turned on. At this time, the first switch circuit 42 is turned on, the first power supply circuit 11 supplies power to the operation panel 300, and the second chip 412 controls the output of a low-level signal to ensure that the third transistor Q3 and the fourth transistor Q4 are not turned on. When the first chip 411 is powered off, the first transistor Q1 and the second transistor Q2 are not turned on, and at the same time, communication signals cannot be sent to the second chip 412. The second chip 412 starts to output control signals after failing to receive communication signals. After the bases of the third transistor Q3 and the fourth transistor Q4 receive high-level electrical signals output by the second chip 412, the third transistor Q3 and the fourth transistor Q4 are turned on, and the third optocoupler PC3 and the fourth optocoupler PC4 are turned on. At this time, the second switch circuit 43 is turned on, and the second power supply circuit 21 supplies power to the operation panel 300.

[0050] For the working stability of the operation panel 300, the operation panel 300 can be designed to be connected to the first laundry processing device and the second laundry processing device through the output end of the voltage stabilizing circuit 500. The voltage stabilizing circuit can ensure that the output voltage of the power supply circuit remains basically unchanged when the voltage fluctuates or the load changes. The voltage stabilizing circuit 500 can adopt a common circuit structure, which will not be described here.

[0051] Embodiment 2:

[0052] In addition to using chips to implement signal control, the switch control circuit 41 can also use relays to implement signal control, such as Figure 4 As shown, in another embodiment, the power supply selection circuit includes a relay 413, and a control coil 413C of the relay 413 obtains a working power supply from one of the first power supply circuit 11 and the second power supply circuit 21. The relay 413 has a first group of contacts 413A and a second group of contacts 413B. The first group of contacts is electrically connected between the first power supply circuit 11 and the operation panel 300, and the second group of contacts is electrically connected between the second power supply circuit 21 and the operation panel 300. The relay 413 has a first power-on state in which the first group of contacts 413A is turned on and the second group of contacts 413B is turned off when the first power supply circuit 11 supplies power, and a second power-on state in which the second group of contacts 413B is turned on and the first group of contacts 413A is turned off when the second power supply circuit 21 supplies power.

[0053] Since the first group of contacts 413A and the second group of contacts 413B are in a selectively conductive state, for example, when the relay 413 is without power, the first group of contacts 413A is in a disconnected state, and the second group of contacts 413B is in a conductive state by default, the control coil 413C of the relay 413 is electrically connected to the first power circuit 11. When the first power circuit 11 is powered on, the control coil 413C attracts the first group of contacts 413A, the first power circuit 11 is electrically conductive with the operation panel 300, and the second group of contacts 413B is naturally disconnected, thereby disconnecting the second power circuit 21. At this time, the first power circuit 11 supplies power to the operation panel 300. When the first power circuit 11 is powered on, the control coil 413C attracts the first group of contacts 413A, the first power circuit 11 is electrically conductive with the operation panel 300, and the second group of contacts 413B is naturally disconnected, thereby disconnecting the second power circuit 21. When the source circuit 11 is not powered or a fault occurs and the power is cut off, the first group of contacts 413A is naturally disconnected, and the second group of contacts 413B automatically returns to the on state. The first power circuit 11 is disconnected, and the second power circuit 21 is electrically connected to the operation panel 300. At this time, the second power circuit 21 supplies power to the operation panel 300. While flexibly switching the power circuit, the relay 413 can also control the current to prevent excessive current from damaging the electrical components in the circuit. The conduction state is controlled by the relay 413, and the power on or off can automatically switch different contacts to conduct, flexibly switching the power circuit, and selecting the power supply through the relay. Compared with chip control, mechanical control has a longer life.

[0054] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A clothes processing combined device, comprising at least a first clothes processing device and a second clothes processing device, wherein the first clothes processing device has a first power circuit, the second clothes processing device has a second power circuit, and the first clothes processing device and the second clothes processing device share an operation panel, characterized in that: The operation panel is electrically connected to the output end of the power supply selection circuit, the first input end of the power supply selection circuit is electrically connected to the first power supply circuit, the second input end of the power supply selection circuit is electrically connected to the second power supply circuit, and the operation panel obtains working power from one of the first power supply circuit and the second power supply circuit through the power supply selection circuit.

2. The clothes processing assembly according to claim 1, characterized in that: The power supply selection circuit includes a switch control circuit, a first switch circuit and a second switch circuit. The first switch circuit is electrically connected between the first power supply circuit and the operation panel, and the second switch circuit is electrically connected between the second power supply circuit and the operation panel. The signal output end of the switch control circuit is electrically connected to the signal control end of the first switch circuit and the signal control end of the second switch circuit respectively. The switch control circuit obtains working power from the first power supply circuit or the second power supply circuit.

3. The clothes processing assembly according to claim 2, characterized in that: The switch control circuit includes a first chip and a second chip, the first chip and the second chip communicate with each other, the first chip obtains working power from the first power circuit, and the second chip obtains working power from the second power circuit, the signal output end of the switch control circuit includes a signal output pin of the first chip and a signal output pin of the second chip, the signal output pin of the first chip is electrically connected to the signal control end of the first switch circuit, and the signal output pin of the second chip is electrically connected to the signal control end of the second switch circuit.

4. The clothes processing assembly according to claim 3, characterized in that: The control priority of the first chip is higher than that of the second chip. Both the first chip and the second chip are in a power-on state. The first chip has a first power-on state in which the first switch circuit is turned on and a pulse communication signal is continuously sent to the second chip to keep the second switch circuit of the second chip turned off.

5. The clothes processing assembly according to claim 4, characterized in that: The second chip has a second power-on state for keeping the second switch circuit turned on after failing to receive the pulse communication signal sent by the first chip.

6. The clothes processing assembly according to claim 3, characterized in that: The first chip has a third power-on state in which a pulse communication signal is continuously sent to the second chip when the first power supply circuit is powered on and the second power supply circuit is powered off, so that the second chip is powered on and the second switch circuit is kept disconnected; or, the second chip has a fourth power-on state in which a pulse communication signal is continuously sent to the first chip when the second power supply circuit is powered on and the first power supply circuit is powered off, so that the first switch circuit is kept disconnected after the first chip is powered on.

7. The clothes processing assembly according to claim 3, characterized in that: The first switch circuit includes a first transistor, a second transistor, a first optocoupler and a second optocoupler, the collector of the first transistor is electrically connected to the first power supply circuit, the base of the first transistor is electrically connected to a signal output pin of the first chip, the emitter of the first transistor is electrically connected to the LED anode pin of the first optocoupler, the LED cathode pin of the first optocoupler is grounded, the photodetector collector pin of the first optocoupler is electrically connected to the first power supply circuit, the photodetector emitter pin of the first optocoupler is electrically connected to the positive pole of the operation panel, the collector of the second transistor is electrically connected to the first power supply circuit, the base of the second transistor is electrically connected to another signal output pin of the first chip, the emitter of the second transistor is electrically connected to the LED anode pin of the second optocoupler, the LED cathode pin of the second optocoupler is grounded, the photodetector collector pin of the second optocoupler is electrically connected to the negative pole of the operation panel, and the photodetector emitter pin of the second optocoupler is grounded.

8. The clothes processing assembly according to claim 3, characterized in that: The second switch circuit includes a third transistor, a fourth transistor, a third optocoupler and a fourth optocoupler, the collector of the third transistor is electrically connected to the second power supply circuit, the base of the third transistor is electrically connected to a signal output pin of the second chip, the emitter of the third transistor is electrically connected to the LED anode pin of the third optocoupler, the LED cathode pin of the third optocoupler is grounded, the photodetector collector pin of the third optocoupler is electrically connected to the second power supply circuit, the photodetector emitter pin of the third optocoupler is electrically connected to the positive pole of the operation panel, the collector of the fourth transistor is electrically connected to the second power supply circuit, the base of the fourth transistor is electrically connected to another signal output pin of the second chip, the emitter of the fourth transistor is electrically connected to the LED anode pin of the fourth optocoupler, the LED cathode pin of the fourth optocoupler is grounded, the photodetector collector pin of the fourth optocoupler is electrically connected to the negative pole of the operation panel, and the photodetector emitter pin of the fourth optocoupler is grounded.

9. The clothes processing assembly according to claim 1, characterized in that: The power supply selection circuit includes a relay, a control coil of the relay selects one of the first power supply circuit and the second power supply circuit to obtain the working power supply, the relay has a first group of contacts and a second group of contacts, the first group of contacts is electrically connected between the first power supply circuit and the operation panel, and the second group of contacts is electrically connected between the second power supply circuit and the operation panel, and the relay has a first power-on state in which the first group of contacts is turned on and the second group of contacts is turned off when the first power supply circuit supplies power, and a second power-on state in which the second group of contacts is turned on and the first group of contacts is turned off when the second power supply circuit supplies power.

10. The clothes processing assembly according to claim 1, characterized in that: The operation panel is electrically connected to the power supply selection circuit through a voltage stabilizing circuit.

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