Regulation and control device for display of water dispenser and water dispenser

Abstract

The invention relates to the technical field of display regulation and control, and discloses a regulation and control device of a water dispenser display and a water dispenser, and the device comprises a power supply module, a main control module, a regulation and control module and a display communication interface. The power module is connected with an external power supply, the regulation and control module and the main control module; the main control module is connected with the regulation and control module, and the communication end of the main control module is connected with the communication end of the display communication interface; the input end of the regulation and control module is connected with the output end of the power module, the output end of the regulation and control module is connected with the power supply end of the display communication interface, and the display communication interface is connected with a display of the water dispenser; the display communication interface outputs a communication feedback signal generated by the display, the main control module receives the communication feedback signal and outputs a regulation and control signal, and the regulation and control module receives the regulation and control signal and regulates the on-off of the power supply module and the power supply end of the display communication interface, so that when the display has a communication fault, the display is powered off or restarted. And long-time crash is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of display control, and in particular to a control device for a water dispenser display and a water dispenser. Background Art

[0002] In the prior art, most of the serial communication is used to connect the display device and the main control device, so that the main control device can control the display device. In an environment with large temperature differences, the display device may be damp due to condensation, or water leakage may occur when the water dispenser is in use, causing the device to be damp. The damp device is prone to crash and communication failure. The water dispenser will not restart automatically and needs to be restarted manually by the user. In addition, if the device is in a crash state for a long time, accidents are likely to occur, affecting the normal use of the water dispenser. Summary of the invention

[0003] The main purpose of the embodiments of the present application is to provide a control device for a water dispenser display and a water dispenser, so as to realize power-off or restart processing of the display when a communication failure occurs in the display, so as to avoid being in a frozen state for a long time.

[0004] To achieve the above-mentioned purpose, some embodiments of one aspect of the present application provide a control device for a water dispenser display, comprising: a power module, a main control module, a control module and a display communication interface;

[0005] The input end of the power module is used to connect to an external power supply, and the output end of the power module is connected to the regulation module and the main control module respectively;

[0006] The output end of the main control module is connected to the input end of the regulation module, and the communication end of the main control module is connected to the communication end of the display communication interface;

[0007] The input end of the control module is connected to the output end of the power module, the output end of the control module is connected to the power supply end of the display communication interface, and the display communication interface is connected to the display of the water dispenser;

[0008] The display communication interface is used to output the communication feedback signal generated by the display, the main control module is used to receive the communication feedback signal and output a control signal, and the control module is used to receive the control signal and adjust the on / off of the power supply module and the power supply end of the display communication interface.

[0009] Furthermore, a control device for a water dispenser display further includes: a water leakage detection module;

[0010] The water leakage detection module is arranged inside the water dispenser, the output end of the water leakage detection module is connected to the input end of the main control module, and the water leakage detection module is used to output a water leakage detection signal to the main control module, so that the main control module outputs the control signal.

[0011] Further, the control module includes: a field effect transistor circuit;

[0012] The input end of the field effect tube circuit is connected to the output end of the main control module and the output end of the power supply module respectively, and the output end of the field effect tube circuit is connected to the power supply end of the display communication interface.

[0013] Furthermore, a control device for a water dispenser display further includes: a data transmission module;

[0014] The data transmission module is connected to the communication end of the main control module, the data transmission module is also connected to the communication end of the display communication interface, the data transmission module is connected to the output end of the power module, and the data transmission module is used to transmit the communication feedback signal.

[0015] Further, the data transmission module includes: a pull-up resistor group, a first current limiting resistor and a second current limiting resistor;

[0016] The first current limiting resistor and the second current limiting resistor are both connected to the communication end of the display communication interface, the first current limiting resistor and the second current limiting resistor are both connected to the communication end of the main control module, and the pull-up resistor group is respectively connected to the output end of the power module and the first current limiting resistor.

[0017] Furthermore, a control device for a water dispenser display further includes: a water drinking detection module;

[0018] The drinking water detection module is connected to the water receiving tank of the water dispenser, the output end of the drinking water detection module is connected to the input end of the main control module, and the drinking water detection module is connected to the output end of the power supply module;

[0019] The drinking water detection module is used to detect the water level and water temperature in the water receiving tank, and output the water level and the water temperature; the main control module is also used to output the water level and the water temperature to the display communication interface for display on the display of the water dispenser.

[0020] Further, the drinking water detection module includes: a water temperature detection circuit and a water level detection circuit;

[0021] The water temperature detection circuit and the water level detection circuit are both connected to the water receiving tank, the output end of the water temperature detection circuit and the output end of the water level detection circuit are both connected to the input end of the main control module, and the water temperature detection circuit and the water level detection circuit are both connected to the output end of the power supply module;

[0022] The water temperature detection circuit is used to detect the water temperature in the water receiving tank, and the water level detection circuit is used to detect the water level in the water receiving tank.

[0023] Further, the water level detection circuit includes: a water level detector, a water level detection interface, a first protection circuit and a grounding interface;

[0024] The water level detector is connected to the water level detection interface, the first protection circuit is respectively connected to the water level detection interface and the input end of the main control module, and the grounding interface is respectively connected to the first protection circuit and the outer shell of the water receiving tank.

[0025] Further, the water leakage detection module includes: a water leakage detector, a water leakage detection interface and a second protection circuit;

[0026] The water leakage detector is connected to the water leakage detection interface, and the second protection circuit is connected to the water leakage detection interface and the input end of the main control module respectively.

[0027] Some embodiments of another aspect of the present application provide a water dispenser, including a control device for a water dispenser display in some embodiments of one aspect of the present application.

[0028] The beneficial effect of the present invention is that when a communication failure occurs in the display, the communication end of the display communication interface will be pulled down and a communication feedback signal will be output. The main control module determines that the display has crashed and a communication failure has occurred based on the communication feedback signal, and then outputs a control signal to control the control module. The control module controls the on-off connection between the power module and the power supply end of the display communication interface based on the control signal to achieve the on-off control of the display, and restart or power-off the display without the need for the user to manually restart, thereby avoiding the display being in a crash state for a long time, and improving the reliability and safety of the water dispenser. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a partial circuit diagram of a control device for a water dispenser display provided by an embodiment of the present invention;

[0030] Figure 2 It is a partial circuit diagram of a control device for a water dispenser display provided by another embodiment of the present invention;

[0031] Figure 3It is a partial circuit diagram of a control device for a water dispenser display provided by another embodiment of the present invention. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and cannot be understood as limiting the present invention.

[0033] It should be noted that although the functional module division is performed in the schematic diagram, in some cases, the module division can be different from that in the system.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0036] As described in the background technology, in the prior art, most of the display devices and the main control devices are connected by serial communication to enable the main control device to control the display device. In an environment with large temperature differences, the display device may be damp due to condensation, or water leakage may occur when the water dispenser is in use, causing the device to be damp, and damp devices are prone to crashes and communication failures. The water dispenser will not automatically restart, and the user needs to restart manually. In addition, if the device is in a dead state for a long time, accidents are likely to occur, affecting the normal use of the water dispenser.

[0037] In view of this, the present application proposes a control device for a water dispenser display and a water dispenser, so as to realize power off or restart of the display when a communication failure occurs in the display, so as to avoid being in a frozen state for a long time.

[0038] Reference Figure 1 In some embodiments of one aspect of the present invention, a control device for a water dispenser display includes: a main control module 100, a control module 200, a power module 300 and a display communication interface CN1.

[0039] The external power supply is electrically connected to the input end of the power module 300, and the external power supply is a 24V DC power supply. The output end of the power module 300 is electrically connected to the control module 200, and the output end of the power module 300 is electrically connected to the main control module 100. The power module 300 performs voltage reduction processing on the external power supply and provides a power supply voltage to the control module 200 and the main control module 100, wherein the power supply voltage is a 5V DC voltage.

[0040] The communication end of the main control module 100 is electrically connected to the communication end of the display communication interface CN1, and the display of the water dispenser is electrically connected to the display communication interface CN1. That is, the main control module 100 is in communication connection with the display of the water dispenser through the display communication interface CN1.

[0041] The main control module 100 can output data information to the display through the display communication interface CN1 so that the display can display the data information, and the display can feed back data information to the main control module 100 through the display communication interface CN1 to realize serial port communication.

[0042] The output end of the control module 200 is electrically connected to the power supply end of the display communication interface CN1, the input end of the control module 200 is electrically connected to the output end of the main control module 100, and the input end of the control module 200 is also electrically connected to the output end of the power module 300.

[0043] When a communication failure occurs due to a display freeze, the communication end of the display communication interface CN1 will be pulled low, so that the display communication interface CN1 can output a communication feedback signal of the display freeze. Similarly, when the display operates normally and communication is normal, the display communication interface CN1 can output a communication feedback signal of the normal operation of the display.

[0044] The main control module 100 can receive a communication feedback signal, and output a control signal according to the communication feedback signal, wherein the control signal includes a power supply disconnection signal and a power supply connection signal.

[0045] The control module 200 receives the control signal output by the main control module 100, and switches on and off the connection between the power supply module 300 and the power supply end of the display communication interface CN1.

[0046] Exemplarily, the main control module 100 can determine that the display has crashed based on the communication feedback signal output by the display communication interface CN1. After the main control module 100 determines that the display has crashed, it outputs a control signal for power disconnection. The control module 200 receives the control signal for power disconnection, controls the power supply module 300 to be disconnected from the power supply end of the display communication interface CN1 to stop supplying power supply voltage to the display, and powers off the display to avoid the display being in a crashed state for a long time, thereby improving the reliability and safety of the water dispenser.

[0047] Exemplarily, the main control module 100 can determine that the display has crashed based on the communication feedback signal output by the display communication interface CN1. After the main control module 100 determines that the display has crashed, it outputs a control signal of power disconnection, and the control module 200 receives the control signal of power disconnection, and controls the power supply module 300 to be disconnected from the power supply end of the display communication interface CN1. After a set time period, the main control module 100 outputs a control signal of power connection, and the control module 200 receives the control signal of power connection, and controls the power supply module 300 to be connected to the power supply end of the display communication interface CN1, so that the display is powered on again and the display is restarted without the need for the user to manually restart, thereby avoiding the display being in a frozen state for a long time, and improving the reliability and safety of the water dispenser.

[0048] In the scheme of the present application, when a communication failure occurs in the display, the communication end of the display communication interface will be pulled down and a communication feedback signal will be output. The main control module 100 determines that the display has crashed and a communication failure has occurred based on the communication feedback signal, and then outputs a control signal to control the control module 200. The control module 200 controls the on and off of the power supply end of the power module 300 and the display communication interface CN1 based on the control signal. The main control module 100 can again use the communication feedback signal or send test information to determine whether the communication with the display is normal, and restart or power off the display without the user manually restarting, thereby avoiding the display being in a frozen state for a long time, thereby improving the reliability and safety of the water dispenser.

[0049] Reference Figures 1 to 3 In some embodiments of one aspect of the present invention, the control device of the water dispenser display further includes: a data transmission module 400, a water leakage detection module 500 and a drinking water detection module.

[0050] Reference Figure 1 The data transmission module 400 is electrically connected to the communication end of the main control module 100, the data transmission module 400 is electrically connected to the communication end of the display communication interface CN1, the data transmission module 400 is electrically connected to the output end of the power module 300, and the data transmission module 400 can transmit the communication feedback signal to the main control module 100.

[0051] In one embodiment, the data transmission module 400 includes: a pull-up resistor group, a first current limiting resistor R5 and a second current limiting resistor R6.

[0052] One end of the first current limiting resistor R5 is electrically connected to the communication end of the display communication interface CN1, and the other end of the first current limiting resistor R5 is electrically connected to the communication end of the main control module 100. One end of the second current limiting resistor R6 is electrically connected to the communication end of the display communication interface CN1, and the other end of the second current limiting resistor R6 is electrically connected to the communication end of the main control module 100. One end of the pull-up resistor group is electrically connected to the output end of the power module 300, that is, connected to the supply voltage. The other end of the pull-up resistor group is electrically connected to the other end of the first current limiting resistor R5.

[0053] Reference Figure 1 The water leakage detection module 500 is installed inside the water dispenser, and the output end of the water leakage detection module 500 is electrically connected to the input end of the main control module 100. The water leakage detection module 500 can detect whether there is a water leakage problem in the water dispenser, output a water leakage detection signal, and output the water leakage detection signal to the main control module 100. The main control module 100 outputs a control signal to the control module 200 according to the water leakage detection signal.

[0054] Exemplarily, the water leakage detection module 500 detects that the water dispenser has a water leakage problem and outputs a water leakage detection signal. The main control module 100 can determine that the water dispenser is leaking based on the water leakage detection signal and output a power disconnection control signal. The control module 200 receives the power disconnection control signal and controls the power supply module 300 to disconnect from the power supply end of the display communication interface CN1 to stop supplying power voltage to the display until the water leakage detection module 500 outputs a water leakage detection signal to stop leaking, and then the display is powered off to avoid the display being in a frozen state for a long time, thereby improving the reliability and safety of the water dispenser.

[0055] In one embodiment, the water leakage detection module 500 includes: a second protection circuit, a water leakage detector and a water leakage detection interface CN2.

[0056] The water leakage detector is electrically connected to the water leakage detection interface CN2 , the second protection circuit is electrically connected to the water leakage detection interface CN2 , and the second protection circuit is also electrically connected to the input end of the main control module 100 .

[0057] Wherein, the water leakage detector can be a detector formed by a humidity-sensitive resistor, a humidity-sensitive capacitor or an electrode. The second protection circuit includes: a third capacitor C3, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9 and a tenth resistor R10. One end of the seventh resistor R7, the eighth resistor R8, the ninth resistor R9 and the tenth resistor R10 are all electrically connected to the water leakage detection interface CN2, the other end of the seventh resistor R7 and one end of the third capacitor C3 are all electrically connected to the input end of the main control module 100, the other end of the third capacitor C3 is grounded, and the other end of the eighth resistor R8 is grounded. The other end of the tenth resistor R10 is electrically connected to the input end of the main control module 100, and the other end of the ninth resistor R9 is grounded.

[0058] Reference Figure 2 and Figure 3 The drinking water detection module is in contact with the water receiving tank of the water dispenser, the output end of the drinking water detection module is electrically connected to the input end of the main control module 100, and the drinking water detection module is electrically connected to the output end of the power supply module 300.

[0059] The drinking water detection module can detect the drinking water in the water receiving tank, detect the water level and water temperature of the drinking water, and output the water temperature and water level to the main control module 100. The main control module 100 receives the water temperature and water level, and transmits it to the display through the data transmission module 400, so that the display can display the water level and water temperature of the water receiving tank.

[0060] In one embodiment, the drinking water detection module includes: a water temperature detection circuit 600 and a water level detection circuit 610 .

[0061] The water temperature detection circuit 600 is in contact with the water receiving tank, the output end of the water temperature detection circuit 600 is electrically connected to the input end of the main control module 100, and the water temperature detection circuit 600 is electrically connected to the output end of the power module 300, that is, connected to the power supply voltage. The water temperature detection circuit 600 can detect the water temperature in the water receiving tank.

[0062] Among them, refer to Figure 2 The water temperature detection circuit 600 is provided with a plurality of water temperature detection circuits. The main control module 100 removes the water temperature data which differs greatly from the water temperature average, and fuses the remaining water temperature data to determine the water temperature transmitted to the display.

[0063] Reference Figure 3 The water level detection circuit 610 is in contact with the water receiving tank, the output end of the water level detection circuit 610 is electrically connected to the input end of the main control module 100, and the water level detection circuit 610 is electrically connected to the output end of the power module 300, that is, connected to the power supply voltage. The water level detection circuit 610 can detect the water level in the water receiving tank.

[0064] The water level detection circuit 610 includes: a water level detector, a water level detection interface CN6, a grounding interface CN7, and a first protection circuit. The water level detector is electrically connected to the water level detection interface CN6, the input end of the first protection circuit is electrically connected to the water level detection interface CN6, the output end of the first protection circuit is electrically connected to the input end of the main control module 100, the grounding interface CN7 is electrically connected to the first protection circuit, and the grounding interface CN7 is connected to the outer shell of the water receiving tank.

[0065] The first protection circuit includes: a pull-up capacitor C11, a pull-up resistor group, a current-limiting resistor group and a pull-down capacitor group. The pull-up resistor group is formed by connecting the 20th resistor R20, the 21st resistor R21, the 22nd resistor R22 and the 24th resistor R24 ​​in parallel. The current-limiting resistor group is formed by connecting the 16th resistor R16, the 17th resistor R17, the 18th resistor R18 and the 19th resistor R19 in parallel, and the pull-down capacitor group is formed by connecting the 12th capacitor C12, the 13th capacitor C13 and the 14th capacitor C14 in parallel. One end of the pull-up capacitor C11 is electrically connected to the 16th resistor R16, and the other end of the pull-up capacitor C11 is electrically connected to the input end of the power module 300.

[0066] Reference Figure 1 In some embodiments of one aspect of the present invention, the control module 200 includes: a field effect transistor circuit.

[0067] The input end of the field effect tube circuit is electrically connected to the output end of the main control module 100, the output end of the field effect tube circuit is electrically connected to the display communication interface CN1, and the input end of the field effect tube is also electrically connected to the output end of the power module 300, that is, connected to the supply voltage.

[0068] The field effect tube circuit receives the control signal sent by the main control module 100, and the field effect tube is turned on and off, thereby controlling the connection and disconnection between the power module 300 and the display communication interface CN1.

[0069] The field effect transistor Q1 in the field effect transistor circuit is a PMOS transistor. The control module 200 may further include: an anti-reverse connection circuit or other protection circuits, which will not be described in detail in this embodiment.

[0070] Reference Figure 3 In some embodiments of one aspect of the present invention, the power module 300 includes: a step-down circuit 310 and a filter circuit 320 .

[0071] The input end of the step-down circuit 310 is used to be connected to an external power supply, the output end of the step-down circuit 310 is connected to the input end of the filter circuit 320, and the output end of the filter circuit 320 is respectively connected to the drinking water detection module, the regulation module 200 and the main control module 100 to provide a power supply voltage to the drinking water detection module, the regulation module 200 and the main control module 100.

[0072] In some embodiments of another aspect of the present invention, a water dispenser includes a control device of a water dispenser display in one aspect of the present invention.

[0073] The preferred embodiments of the present invention are described in detail above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A control device for a water dispenser display, characterized in that: include: Power module, main control module, regulation module and display communication interface; The input end of the power module is used to connect to an external power supply, and the output end of the power module is connected to the regulation module and the main control module respectively; The output end of the main control module is connected to the input end of the regulation module, and the communication end of the main control module is connected to the communication end of the display communication interface; The input end of the control module is connected to the output end of the power module, the output end of the control module is connected to the power supply end of the display communication interface, and the display communication interface is connected to the display of the water dispenser; The display communication interface is used to output the communication feedback signal generated by the display, the main control module is used to receive the communication feedback signal and output a control signal, and the control module is used to receive the control signal and adjust the on / off of the power supply module and the power supply end of the display communication interface.

2. A control device for a water dispenser display according to claim 1, characterized in that: Also includes: Water leakage detection module; The water leakage detection module is arranged inside the water dispenser, the output end of the water leakage detection module is connected to the input end of the main control module, and the water leakage detection module is used to output a water leakage detection signal to the main control module, so that the main control module outputs the control signal.

3. The control device for a water dispenser display according to claim 1, characterized in that: The control module includes: a field effect tube circuit; The input end of the field effect tube circuit is connected to the output end of the main control module and the output end of the power supply module respectively, and the output end of the field effect tube circuit is connected to the power supply end of the display communication interface.

4. The control device for a water dispenser display according to claim 1, characterized in that: Also includes: Data transmission module; The data transmission module is connected to the communication end of the main control module, the data transmission module is also connected to the communication end of the display communication interface, the data transmission module is connected to the output end of the power module, and the data transmission module is used to transmit the communication feedback signal.

5. The control device for a water dispenser display according to claim 4, characterized in that: The data transmission module comprises: a pull-up resistor group, a first current limiting resistor and a second current limiting resistor; The first current limiting resistor and the second current limiting resistor are both connected to the communication end of the display communication interface, the first current limiting resistor and the second current limiting resistor are both connected to the communication end of the main control module, and the pull-up resistor group is respectively connected to the output end of the power module and the first current limiting resistor.

6. The control device for a water dispenser display according to claim 1, characterized in that: Also includes: Drinking water detection module; The drinking water detection module is connected to the water receiving tank of the water dispenser, the output end of the drinking water detection module is connected to the input end of the main control module, and the drinking water detection module is connected to the output end of the power supply module; The drinking water detection module is used to detect the water level and water temperature in the water receiving tank, and output the water level and the water temperature; the main control module is also used to output the water level and the water temperature to the display communication interface for display on the display of the water dispenser.

7. The control device for a water dispenser display according to claim 6, characterized in that: The drinking water detection module includes: a water temperature detection circuit and a water level detection circuit; The water temperature detection circuit and the water level detection circuit are both connected to the water receiving tank, the output end of the water temperature detection circuit and the output end of the water level detection circuit are both connected to the input end of the main control module, and the water temperature detection circuit and the water level detection circuit are both connected to the output end of the power supply module; The water temperature detection circuit is used to detect the water temperature in the water receiving tank, and the water level detection circuit is used to detect the water level in the water receiving tank.

8. The control device for a water dispenser display according to claim 7, characterized in that: The water level detection circuit comprises: a water level detector, a water level detection interface, a first protection circuit and a grounding interface; The water level detector is connected to the water level detection interface, the first protection circuit is respectively connected to the water level detection interface and the input end of the main control module, and the grounding interface is respectively connected to the first protection circuit and the outer shell of the water receiving tank.

9. The control device for a water dispenser display according to claim 2, characterized in that: The water leakage detection module includes: a water leakage detector, a water leakage detection interface and a second protection circuit; The water leakage detector is connected to the water leakage detection interface, and the second protection circuit is connected to the water leakage detection interface and the input end of the main control module respectively.

10. A water dispenser, characterized in that: A control device for a water dispenser display comprising the device described in any one of claims 1 to 9.

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