A button wake-up power drive circuit and an electric-controlled toilet

Abstract

The present invention discloses a button-activated wake-up power-taking drive circuit and an electric-controlled toilet, comprising: a logic judgment module, comprising a detection end and an output end, the detection end of the logic judgment module being used to connect to an external main power supply and an external button component respectively; a switch module, comprising a backup power supply end, a control end and an output end, the backup power supply end of the switch module being used to connect to an external backup power supply, the output end of the switch module being used to connect to an external load and / or an external controller, and the output end of the logic judgment module being connected to the control end of the switch module; the logic judgment module being able to control the switch module to close when the main power supply is cut off and the button component is actuated, and this design saves auxiliary power supply power consumption and extends battery life.

Description

Technical Field

[0001] The present invention relates to the field of bathroom fixtures, and in particular to a button-activated power-taking drive circuit and an electric-controlled toilet. Background Art

[0002] Today's smart electric toilets can generate electrical signals by non-physical self-locking buttons, output them to the controller, and then the controller controls the flushing load of the toilet to achieve the flushing operation. This control circuit architecture needs to be powered by a main power supply (connected to external AC power or set up a main storage battery). In order to prevent the electric toilet from failing to operate when the main power supply fails or there is insufficient power, a backup power supply is also required. However, there is an obvious defect now: after the main power supply fails, the backup power supply continues to power the electric toilet. Even if there is no flushing demand, the load of the electric toilet, the main control chip of the controller, etc. are still continuously powered by the backup power supply to maintain the chip in low-power standby mode waiting for the button component to trigger wake-up, resulting in continuous consumption of electricity in the backup power supply. In the event of a main power failure, the time that the electric toilet can continue to work is greatly shortened. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a key-activated wake-up power drive circuit to save auxiliary power consumption and extend battery life.

[0004] The present invention also provides an electric-controlled toilet, which saves power consumption of an auxiliary power supply and extends the endurance of the electric-controlled toilet after the main power supply fails.

[0005] According to the first aspect of the present invention, a key wake-up power-taking drive circuit includes: a logic judgment module, including a detection end and an output end, the detection end of the logic judgment module is used to connect to an external main power supply and an external key component respectively; a switch module, including a backup power supply end, a control end and an output end, the backup power supply end of the switch module is used to connect to an external backup power supply, the output end of the switch module is used to connect to an external load and / or an external controller, and the output end of the logic judgment module is connected to the control end of the switch module; the logic judgment module can control the switch module to close when the main power supply is cut off and the key component is actuated.

[0006] A key-activated wake-up power-taking driving circuit according to an embodiment of the present invention has at least the following beneficial effects:

[0007] The button-activated power-taking drive circuit of the present invention uses a logic judgment module to judge the status of the main power supply and the button component. When the main power supply is normally supplied or the button component is not triggered, the switch module is in the disconnected state and does not consume the power of the backup power supply. When the main power supply is cut off and the button component is activated, the switch module can be controlled to close, so that the backup power supply can supply power to the load. This design saves auxiliary power supply power consumption and extends battery life.

[0008] According to some embodiments of the present invention, the logic judgment module includes a signal trigger unit and a self-locking unit, the signal trigger unit is respectively connected to the main power supply, the button component and the self-locking unit, the self-locking unit is connected to the control end of the switch module, and when the main power supply is cut off and the button component is actuated, the signal trigger unit can control the switch module to close and maintain the control state. An unlocking end is provided on the self-locking unit, and the unlocking end of the self-locking unit is used to connect to an external controller and can unlock the control state according to the unlocking signal of the external controller.

[0009] According to some embodiments of the present invention, the logic judgment module also includes a unidirectional conductive module, the positive end of the unidirectional conductive module is used to connect to the main power supply, the negative end of the unidirectional conductive module is respectively connected to the signal trigger unit, the backup power supply and one end of the button component, and the other end of the button component is grounded.

[0010] According to some embodiments of the present invention, the unidirectional conductive module includes a diode D1, the anode of the diode D1 is used to connect to the main power supply, and the cathode of the diode D1 is respectively connected to the signal trigger unit, the backup power supply and one end of the button component.

[0011] According to some embodiments of the present invention, the logic judgment module further includes a voltage divider module, the output end of which is respectively connected to the backup power supply, the signal trigger unit, the negative end of the unidirectional conductive module and one end of the button component.

[0012] According to some embodiments of the present invention, the voltage divider module includes a resistor R2 and a resistor R7, one end of the resistor R2 is connected to the backup power supply, the other end of the resistor R2 is respectively connected to the signal trigger unit, the negative end of the unidirectional conductive module and one end of the resistor R7, and the other end of the resistor R7 is connected to one end of the key component.

[0013] According to some embodiments of the present invention, one end of the button component is further connected to the controller.

[0014] According to some embodiments of the present invention, the signal trigger unit includes a switch tube Q3, a switch tube Q5, a resistor R3 and a resistor R9, the input electrode of the switch tube Q3 is connected to a backup power supply, the output electrode of the switch tube Q3 is respectively connected to one end of the resistor R9 and the control electrode of the switch tube Q5, the control electrode of the switch tube Q3 is connected to the negative end of the unidirectional conductive module, one end of the resistor R3 is connected to the backup power supply, the other end of the resistor R3 is respectively connected to the input electrode of the switch tube Q5 and the self-locking unit, the other end of the resistor R9 and the output electrode of the switch tube Q5 are grounded.

[0015] According to some embodiments of the present invention, the self-locking unit includes a switch tube Q2, a switch tube Q6, a resistor R5, a resistor R8 and a resistor R10. The control electrode of the switch tube Q2 is respectively connected to the other end of the resistor R3 and one end of the resistor R5, the other end of the resistor R5 is respectively connected to the input electrode of the switch tube Q5 and the input electrode of the switch tube Q6, the input electrode of the switch tube Q2 is connected to a backup power supply, the output electrode of the switch tube Q2 is respectively connected to one end of the resistor R8 and the control end of the switch module, the control electrode of the switch tube Q6 is respectively connected to the other end of the resistor R8, one end of the resistor R10 and the controller, and the output electrode of the switch tube Q6 and the other end of the resistor R10 are both grounded.

[0016] According to the second aspect of the present invention, the electric toilet includes a backup power supply, a button component, a load, and a button wake-up power drive circuit disclosed in any of the above embodiments. The backup power supply end of the switch module is connected to the backup power supply, the button trigger end of the logic judgment module is connected to the button component, and the output end of the switch module is connected to the load or controller.

[0017] The electronically controlled toilet according to the embodiment of the present invention has at least the following beneficial effects:

[0018] The electronically controlled toilet of the present invention uses a logic judgment module to judge the status of the main power supply and the button component. When the main power supply is normally supplied or the button component is not triggered, the switch module is in the disconnected state and does not consume the electric energy of the backup power supply. When the main power supply is cut off and the button component is activated, the switch module can be controlled to close, so that the backup power supply supplies power to the toilet load and the controller, and the controller receives the flushing trigger signal output by the button component. The controller controls the flushing load of the toilet to complete the flushing operation. This design saves the electric energy consumption of the auxiliary power supply and extends the battery life.

[0019] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0021] Figure 1 This is a principle structural block diagram of one embodiment of the electronically controlled toilet of the present invention;

[0022] Figure 2 This is a circuit diagram of one embodiment of the key-press wake-up power-taking driving circuit of the present invention.

[0023] Reference numerals:

[0024] Logic judgment module 100, signal trigger unit 110, self-locking unit 120, switch module 200, main power supply 300, backup power supply 400, button component 500, load 600, controller 700, unidirectional conductive module 800, voltage divider module 900. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientations, such as the orientations or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside", are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0028] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0029] like Figure 1 、 2 As shown, a key wake-up power-taking drive circuit according to an embodiment of the present invention includes a logic judgment module 100 and a switch module 200. The logic judgment module 100 includes a detection end and an output end. The detection end of the logic judgment module 100 is used to connect to the external main power supply 300 and the external key component 500 respectively; the switch module 200 includes a backup power supply 400 end, a control end and an output end. The backup power supply 400 end of the switch module 200 is used to connect to the external backup power supply 400, and the output end of the switch module 200 is used to connect to the external load 600 or the external controller 700. The output end of the logic judgment module 100 is connected to the control end of the switch module 200. The logic judgment module 100 can control the switch module 200 to close when the main power supply 300 is powered off and the key component 500 is actuated.

[0030] The button wake-up power-taking drive circuit of the present invention uses a logic judgment module 100 to judge the status of the main power supply 300 and the button component 500. When the main power supply 300 is supplying power normally or the button component 500 is not triggered, the switch module 200 is in an off state and does not consume the power of the backup power supply 400. When the main power supply 300 is powered off and the button component 500 is activated, the switch module 200 can be controlled to close, so that the backup power supply 400 supplies power to the load 600. This design saves auxiliary power supply power consumption and extends battery life.

[0031] In some embodiments of the present invention, Figure 2 As shown, the logic judgment module 100 includes a signal trigger unit 110 and a self-locking unit 120. The signal trigger unit 110 is respectively connected to the main power supply 300, the button component 500 and the self-locking unit 120. The self-locking unit 120 is connected to the control end of the switch module 200. When the main power supply 300 is cut off and the button component 500 is actuated, the signal trigger unit 110 can control the switch module 200 to close and maintain the control state. An unlocking end is provided on the self-locking unit 120. The unlocking end of the self-locking unit 120 is used to connect to the external controller 700 and can unlock the control state according to the unlocking signal of the external controller 700.

[0032] Since the button component 500 can adopt a non-self-locking button, it will reset after pressing the button component 500. A self-locking unit 120 is set here. After the button component 500 takes action and the signal generated by the signal trigger unit 110 controls the switch unit to close, the self-locking unit 120 self-locks to maintain the closed state of the switch unit, and the self-locking unit 120 can not be unlocked until the controller 700 outputs an unlocking signal to allow the switch unit to disconnect, thereby providing a more flexible control method.

[0033] In some embodiments of the present invention, the logic judgment module 100 also includes a unidirectional conductive module 800, the positive end of the unidirectional conductive module 800 is used to connect to the main power supply 300, and the negative end of the unidirectional conductive module 800 is respectively connected to the signal trigger unit 110, the backup power supply 400 and one end of the button component 500, and the other end of the button component 500 is grounded.

[0034] In the logic judgment module 100, as Figure 2 As shown, when the main power supply 300 operates normally, it can charge the backup power supply 400. The backup power supply 400 here can be a storage battery or a storage capacitor. When the main power supply 300 fails, the button component 500 does not move, the signal trigger unit 110 will still not be triggered, and the backup power supply 400 will not discharge.

[0035] Specifically, if Figure 2 As shown, the unidirectional conductive module 800 includes a diode D1, the anode of the diode D1 is used to connect to the main power supply 300, and the cathode of the diode D1 is respectively connected to the signal trigger unit 110, the backup power supply 400 and one end of the button component 500.

[0036] In some embodiments of the present invention, the logic judgment module 100 also includes a voltage divider module 900, the output end of the voltage divider module 900 is respectively connected to the backup power supply 400, the signal trigger unit 110, the negative end of the unidirectional conductive module 800 and one end of the button component 500.

[0037] Specifically, the voltage divider module 900 includes a resistor R2 and a resistor R7, one end of the resistor R2 is connected to the backup power supply 400, the other end of the resistor R2 is respectively connected to the signal trigger unit 110, the negative end of the unidirectional conductive module 800 and one end of the resistor R7, and the other end of the resistor R7 is connected to one end of the key component 500.

[0038] like Figure 2As shown, in some embodiments of the present invention, the signal trigger unit 110 includes a switch tube Q3, a switch tube Q5, a resistor R3 and a resistor R9, the input electrode of the switch tube Q3 is connected to the backup power supply 400, the output electrode of the switch tube Q3 is respectively connected to one end of the resistor R9 and the control electrode of the switch tube Q5, the control electrode of the switch tube Q3 is connected to the negative end of the unidirectional conductive module 800, one end of the resistor R3 is connected to the backup power supply 400, the other end of the resistor R3 is respectively connected to the input electrode of the switch tube Q5 and the self-locking unit 120, the other end of the resistor R9 and the output electrode of the switch tube Q5 are grounded.

[0039] The switch transistors Q3 and Q5 herein may be transistors or MOS transistors. For example, the switch transistor Q3 is a PNP transistor. When the main power supply 300 is operating normally, it provides a higher voltage (e.g., 5V). At this time, if the button component 500 is pressed, the other end of the resistor R7 is grounded. When the voltage of the main power supply 300 is set to be greater than the voltage of the backup power supply 400, the voltage across the resistor R7 is +5VA-0.7V (assuming the voltage drop of the diode D1 is 0.7V) = 4.3V. The emitter voltage of the transistor Q3 is the voltage of the backup power supply 400 (assuming 3V). At this time, the base voltage of the transistor Q3 is greater than the emitter voltage of the transistor Q3, and the transistor Q3 cannot be turned on. As a result, the subsequent circuits are all in a non-conducting state, and the backup power supply 400 cannot be discharged. When the main power supply 300 fails and the +5VA voltage disappears, the button component 500 is pressed, and the base current flows through the transistor Q3, and the emitter current flows into the switch tube Q5. At this time, Q5 is turned on, thereby generating a trigger signal for the rear self-locking unit 120 and other circuits to control the switch module 200 to turn on.

[0040] In some embodiments of the present invention, one end of the button component 500 is further connected to the controller 700 .

[0041] like Figure 2 As shown, after the button component 500 is pressed and the main power supply 300 fails, the backup power supply 400 can power the controller 700 by pressing the button component 500, and at this time, the terminal voltage signal at one end of the button component 500 can be contacted and given to the controller 700, and the controller 700 can control the operation of the load 600.

[0042] Specifically, the self-locking unit 120 includes a switch tube Q2, a switch tube Q6, a resistor R5, a resistor R8 and a resistor R10. The control electrode of the switch tube Q2 is respectively connected to the other end of the resistor R3 and one end of the resistor R5. The other end of the resistor R5 is respectively connected to the input electrode of the switch tube Q5 and the input electrode of the switch tube Q6. The input electrode of the switch tube Q2 is connected to the backup power supply 400. The output electrode of the switch tube Q2 is respectively connected to one end of the resistor R8 and the control end of the switch module 200. The control electrode of the switch tube Q6 is respectively connected to the other end of the resistor R8, one end of the resistor R10 and the controller 700. The output electrode of the switch tube Q6 and the other end of the resistor R10 are both grounded.

[0043] The switch tubes Q2 and Q6 can be transistors or MOS tubes, such as Figure 2 As shown, after the switch tube Q5 is turned on, the switch tube Q2 is turned on, and the switch tube Q2 turns on the switch tube Q6, and prompts the switch module 200 to be turned on. The backup power supply 400 supplies power to the load 600 and the controller 700. After Q2 is turned on, the button component 500 is reset, and the switch tubes Q3 and Q5 are turned off. However, the switch tubes Q2 and Q6 are self-locked, and the switch module 200 remains closed.

[0044] and Figure 2 As shown, the switch module 200 can be composed of a switch tube Q4, a switch tube Q1, a resistor R4, a resistor R6, a resistor R1 and a resistor R11. One end of the resistor R6 is connected to one end of the resistor R8, and the other end of the resistor R6 is respectively connected to one end of the resistor R11 and the control electrode of the switch tube Q4. The input electrode of the switch tube Q4 is connected to one end of the resistor R4, and the other end of the resistor R4 is respectively connected to one end of the resistor R1 and the control electrode of the switch tube Q1. The other end of the resistor R1 is respectively connected to the input electrode of the switch tube Q1 and the backup power supply. The output electrode of the switch tube Q1 is connected to the load and the controller. The output electrode of the switch tube Q4 and the other end of the resistor R11 are grounded.

[0045] The switch tube Q4 drives the switch tube Q1 to operate, thereby opening and closing the power supply circuit of the backup power supply 400.

[0046] According to the electronically controlled toilet of the second embodiment of the present invention, Figure 1 、 Figure 2 As shown, it includes a backup power supply 400, a button component 500, a load 600 and a button wake-up power drive circuit disclosed in any of the above embodiments. The backup power supply 400 end of the switch module 200 is connected to the backup power supply 400, the button trigger end of the logic judgment module 100 is connected to the button component 500, and the output end of the switch module 200 is connected to the load 600 or the controller 700.

[0047] Here, the load 600 can be the electric water valve of the toilet, and the controller 700 can be an MCU or a CPU. When the main power supply 300 fails and the button component 500 is activated, the logic judgment module 100 closes the switch module 200 and the self-locking unit 120 self-locks. The backup power supply 400 supplies power to the load 600 and the controller 700, and is triggered by the button component 500 to generate a flushing signal to the controller 700. The controller 700 controls the operation of the load 600. After flushing for a certain period of time, the controller 700 outputs an unlocking signal to the self-locking unit 120, so that the switch module 200 is disconnected and the backup power supply 400 stops supplying power.

[0048] In the electronically controlled toilet of the present invention, the logic judgment module 100 judges the status of the main power supply 300 and the button component 500. When the main power supply 300 is supplying power normally or the button component 500 is not triggered, the switch module 200 is in the disconnected state and does not consume the power of the backup power supply 400. When the main power supply 300 is powered off and the button component 500 is activated, the switch module 200 can be controlled to close, so that the backup power supply 400 supplies power to the toilet load 600 and the controller 700, and the controller 700 receives the flush trigger signal output by the button component 500. The controller 700 controls the flush load 600 of the toilet to complete the flushing operation. This design saves power consumption of the auxiliary power supply and extends battery life.

[0049] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0050] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A button wake-up power drive circuit, characterized in that: include: A logic judgment module includes a detection end and an output end, wherein the detection end of the logic judgment module is used to connect to an external main power supply and an external key component respectively; A switch module, comprising a backup power supply terminal, a control terminal, and an output terminal. The backup power supply terminal of the switch module is used to connect to an external backup power supply. The output terminal of the switch module is used to connect to an external load and / or an external controller. The output terminal of the logic judgment module is connected to the control terminal of the switch module. The logic judgment module can control the switch module to close when the main power supply is cut off and the button component is actuated; The logic judgment module includes a signal trigger unit and a self-locking unit. The signal trigger unit is respectively connected to the main power supply, the key component and the self-locking unit. The self-locking unit is connected to the control end of the switch module. When the main power supply is cut off and the key component is actuated, the signal trigger unit can control the switch module to close and maintain the control state. The self-locking unit is provided with an unlocking end. The unlocking end of the self-locking unit is used to connect to an external controller and can unlock the control state according to the unlocking signal of the external controller; The logic judgment module further includes a unidirectional conductive module, wherein the positive end of the unidirectional conductive module is used to connect to the main power supply, the negative end of the unidirectional conductive module is respectively connected to the signal trigger unit, the backup power supply and one end of the key component, and the other end of the key component is grounded; The unidirectional conductive module includes a diode D1, the positive electrode of the diode D1 is used to connect to the main power supply, and the negative electrode of the diode D1 is connected to the signal trigger unit, the backup power supply and one end of the key component respectively; The signal trigger unit includes a switch tube Q3, a switch tube Q5, a resistor R3, and a resistor R9. The input electrode of the switch tube Q3 is connected to the backup power supply, the output electrode of the switch tube Q3 is respectively connected to one end of the resistor R9 and the control electrode of the switch tube Q5, the control electrode of the switch tube Q3 is connected to the negative end of the unidirectional conductive module, one end of the resistor R3 is connected to the backup power supply, the other end of the resistor R3 is respectively connected to the input electrode of the switch tube Q5 and the self-locking unit, the other end of the resistor R9 and the output electrode of the switch tube Q5 are grounded, wherein the main power supply voltage is greater than the backup power supply voltage; The self-locking unit includes a switch tube Q2, a switch tube Q6, a resistor R5, a resistor R8, and a resistor R10. The control electrode of the switch tube Q2 is respectively connected to the other end of the resistor R3 and one end of the resistor R5. The other end of the resistor R5 is respectively connected to the input electrode of the switch tube Q5 and the input electrode of the switch tube Q6. The input electrode of the switch tube Q2 is connected to a backup power supply. The output electrode of the switch tube Q2 is respectively connected to one end of the resistor R8 and the control end of the switch module. The control electrode of the switch tube Q6 is respectively connected to the other end of the resistor R8, one end of the resistor R10, and the controller. The output electrode of the switch tube Q6 and the other end of the resistor R10 are both grounded.

2. The key-activated wake-up power-taking driving circuit according to claim 1, characterized in that: The logic judgment module further includes a voltage divider module, the output end of which is respectively connected to the backup power supply, the signal trigger unit, the negative end of the unidirectional conductive module and one end of the key component.

3. The key-activated wake-up power-taking driving circuit according to claim 2, characterized in that: The voltage divider module includes a resistor R2 and a resistor R7, one end of the resistor R2 is connected to the backup power supply, the other end of the resistor R2 is respectively connected to the signal trigger unit, the negative end of the unidirectional conductive module and one end of the resistor R7, and the other end of the resistor R7 is connected to one end of the key component.

4. The button wake-up power supply driving circuit according to claim 1, characterized in that: One end of the button component is also connected to the controller.

5. An electronically controlled toilet, characterized in that: It includes a backup power supply, a key component, a load and a key wake-up power drive circuit as described in any one of claims 1 to 4, the backup power supply end of the switch module is connected to the backup power supply, the key trigger end of the logic judgment module is connected to the key component, and the output end of the switch module is connected to the load or controller.

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