Anti-interference electric water heater control device and system

Abstract

The utility model discloses an anti-interference electric water heater control device and system. The control device comprises a main control module, a display module, an input module and a communication module. The input module comprises a touch key unit, the touch key unit comprises a touch key circuit and an anti-interference circuit, the anti-interference circuit is used for filtering interference information of the touch key circuit, and the touch key circuit is used for obtaining touch information; the main control module comprises a main control chip and a main control chip peripheral circuit, and the peripheral circuit comprises a thin code switch circuit; the display module is used for displaying the display information sent by the main control chip; the communication module comprises a WiFi communication circuit. Interference of the touch key circuit is filtered through the anti-interference circuit, the anti-interference capacity is high, communication with the electric water heater can be conducted in time through the WiFi communication circuit, the electric water heater is good in response, and the controller can be widely applied to the technical field of controllers.

Description

Technical Field

[0001] The utility model relates to the technical field of controllers, and in particular to an anti-interference electric water heater control device and system. Background Art

[0002] Currently, the controllers of electric water heaters on the market are easily interfered with, resulting in no response to touch buttons or the electric water heater, affecting the product's performance and providing a poor user experience. Utility Model Content

[0003] In view of this, the purpose of the embodiments of the utility model is to provide an anti-interference electric water heater control device and system, which has strong anti-interference ability, excellent product performance and good user experience.

[0004] In a first aspect, an embodiment of the utility model provides an anti-interference electric water heater control device, comprising a main control module, a display module, an input module and a communication module;

[0005] The input module includes a touch key unit, the touch key unit includes a touch key circuit and an anti-interference circuit, the anti-interference circuit is used to filter interference information of the touch key circuit, the touch key circuit is used to obtain touch information, and the anti-interference circuit includes a plurality of anti-interference capacitors;

[0006] The main control module includes a main control chip and a peripheral circuit of the main control chip, wherein the peripheral circuit includes a thin code switch circuit, and the thin code switch circuit is used to input the selected model information to the main control chip;

[0007] The display module is used to display the display information sent by the main control chip;

[0008] The communication module includes a WiFi communication circuit, which is used to send the instruction information of the main control chip to the electric water heater, receive feedback information from the electric water heater, and send the feedback information to the main control chip.

[0009] Optionally, the main control chip peripheral circuit further includes an alarm circuit, and the alarm circuit is used to sound an alarm after receiving the alarm information of the main control chip.

[0010] Optionally, the anti-interference capacitor uses a 6pF capacitor.

[0011] Optionally, the control device further includes a voice module, the voice module includes a voice playing circuit, and the voice playing circuit is used for playing voice after receiving voice information from the main control chip.

[0012] Optionally, the control device further includes a clock module, the clock module includes a clock circuit, and the clock circuit is used to generate a clock signal and send the clock signal to the main control chip.

[0013] Optionally, the clock circuit includes a clock chip HT1381 and a peripheral circuit of the clock chip HT1381.

[0014] Optionally, the touch button circuit includes a chip YS806 and a peripheral circuit of the chip YS806.

[0015] Optionally, the display module includes an LCD driving circuit and an LCD interface circuit, an input end of the LCD driving circuit is connected to the main control chip, and an output end of the LCD driving circuit is connected to the LCD interface circuit.

[0016] Optionally, the peripheral circuit of the main control chip further includes a reset circuit, and the reset circuit is used to generate reset information to the main control chip.

[0017] In a second aspect, an embodiment of the utility model provides an electric water heater control system, comprising the above-mentioned control device and a water heater, wherein the water heater is wirelessly connected to the control device.

[0018] The implementation of the utility model embodiment includes the following beneficial effects: the utility model embodiment provides an anti-interference electric water heater control device, including a main control module, a display module, an input module and a communication module; the input module includes a touch key unit, the touch key unit includes a touch key circuit and an anti-interference circuit, the anti-interference circuit is used to filter the interference information of the touch key circuit, the touch key circuit is used to obtain touch information, and the anti-interference circuit includes multiple anti-interference capacitors; the main control module includes a main control chip and a main control chip peripheral circuit, the peripheral circuit includes a thin code switch circuit, the thin code switch circuit is used to input the selected model information to the main control chip; the display module is used to display the display information sent by the main control chip; the communication module includes a WiFi communication circuit, the WiFi communication circuit is used to send the instruction information of the main control chip to the electric water heater, and receive the feedback information of the electric water heater, and send the feedback information to the main control chip. The interference of the touch key circuit is filtered out by the anti-interference circuit, the anti-interference ability is strong, and the WiFi communication circuit can communicate with the electric water heater in time, the electric water heater responds well, the product has excellent performance, and the user experience is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural block diagram of an anti-interference electric water heater control device provided by an embodiment of the utility model;

[0020] Figure 2 It is a circuit schematic diagram of the main control module provided by the embodiment of the utility model;

[0021] Figure 3 This is a circuit schematic diagram of a key touch unit provided in an embodiment of the utility model;

[0022] Figure 4 It is a circuit schematic diagram of the voice module provided by the embodiment of the utility model;

[0023] Figure 5 It is a circuit schematic diagram of a clock module provided by an embodiment of the utility model;

[0024] Figure 6 It is a circuit schematic diagram of a display module provided by an embodiment of the utility model;

[0025] Reference numerals: thin code switch circuit 100 , alarm circuit 200 , reset circuit 300 , touch key circuit 400 , anti-interference circuit 500 . DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0028] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, unless otherwise specified, "plurality" means two or more.

[0029] First, refer to Figure 1 , the embodiment of the utility model provides an anti-interference electric water heater control device, including a main control module, a display module, an input module and a communication module;

[0030] The input module includes a touch key unit, the touch key unit includes a touch key circuit 400 and an anti-interference circuit 500, the anti-interference circuit 500 is used to filter interference information of the touch key circuit 400, the touch key circuit 400 is used to obtain touch information, and the anti-interference circuit 500 includes a plurality of anti-interference capacitors;

[0031] The main control module includes a main control chip and a peripheral circuit of the main control chip. The peripheral circuit includes a thin code switch circuit 100. The thin code switch circuit 100 is used to input the selected model information to the main control chip;

[0032] The display module is used to display the display information sent by the main control chip;

[0033] The communication module includes a WiFi communication circuit, which is used to send the instruction information of the main control chip to the electric water heater, receive feedback information from the electric water heater, and send the feedback information to the main control chip.

[0034] It should be noted that the control method of the main control module adopts the existing control method.

[0035] Specifically, the touch button circuit 400 of the touch button unit can obtain the button touch information when the button is touched. The button touch information is processed by the anti-interference circuit 500 and sent to the main control module. After the main control chip of the main control module receives the button touch information, it generates instruction information, or the main control chip receives the button scanning information obtained by the button unit to generate instruction information. The button touch information is the electrical information obtained after the button is touched, and the instruction information is sent to the WiFi communication circuit, and the instruction information is sent to the electric water heater through the WiFi communication circuit, so as to control the operation of the electric water heater. After the main control chip receives the button touch information, if the button touch information is the button touch information related to the setting parameters, it enters the parameter setting mode to perform the corresponding parameter setting. After the anti-interference circuit 500 processes the button touch information, the anti-interference ability of the button can be improved to avoid the interference of the hand during use, resulting in the button not responding, or the button automatically responding. The command information of the main control chip is sent to the electric water heater through the WiFi communication circuit, and the feedback information of the electric water heater is received, and the feedback information is sent to the main control chip, so as to complete the communication between the main control chip and the electric water heater. Since WiFi communication is not easily affected by obstruction or direction, the control instructions sent by the control device can control the electric water heater, unlike the traditional infrared signal which is easily obstructed, resulting in no response of the electric water heater. The thin code switch circuit 100 inputs the selected model information to the main control chip, and the main control chip selects different electric water heater models. For example, when the thin code switch inputs the first switch information, the main control chip turns off the electric water heater, when the thin code switch inputs the second switch information, the main control chip selects the volume of the electric water heater as 50L, and when the thin code switch inputs the third switch information, the main control chip selects the volume of the electric water heater as 60L. After receiving the feedback data signal of the electric water heater, the main control chip generates corresponding display information and sends the display information to the display module, and the display module displays the display information, which specifically includes the water temperature, water storage volume, air temperature and humidity, date, working status of the electric water heater, etc., which are not limited here.

[0036] In some optional real-time examples, the electric water heater control device is powered by a voltage module, and the voltage conversion unit of the voltage module converts the voltage of the power supply and inputs it into the main control module, touch button unit, communication module and display module respectively.

[0037] In some optional embodiments, the main control chip peripheral circuit further includes an alarm circuit 200, and the alarm circuit 200 is used to sound an alarm after receiving the alarm information of the main control chip.

[0038] Specifically, refer to Figure 2The main control chip uses R7FC908, and the alarm circuit 200 includes a resistor R32, a transistor Q1, resistors R30, R31, and a buzzer BZ1. After the pin 12 of the main control chip R7FC908 outputs the alarm information, it is matched by the resistor R32 and amplified by the transistor Q1, and then input to the buzzer BZ1, and the buzzer BZ1 then sounds an alarm. Specifically, it can be an alarm for the water temperature of the water heater to be too high, a short circuit, etc., and there is no specific limitation.

[0039] In some optional embodiments, the peripheral circuit of the main control chip further includes a reset circuit 300, and the reset circuit 300 is used to generate reset information to the main control chip.

[0040] Specifically, refer to Figure 2 The reset circuit 300 includes a resistor R25 and a capacitor C4. The resistor R25 obtains reset information after matching the input voltage. The capacitor C4 filters the reset information and inputs it into the pin 2 of the main control chip R7FC908. The main control chip R7FC908 resets after receiving the reset information.

[0041] In some optional embodiments, the anti-interference capacitor uses a 6pF capacitor.

[0042] Specifically, refer to Figure 3 , the anti-interference circuit 500 includes capacitors C19-C22 and capacitors C24-C27, and the interference information in the touch information input by the touch key is filtered out by capacitors C19-C22 and C24-C27. By adopting a 6pF capacitor, the anti-interference ability of the key is improved to avoid the key not responding or the key automatically responding due to the interference of the hand during use. Each touch key is increased with a 6PF capacitor, and the sensitivity of the touch key is improved at the same time. When the touch panel is used, the response is slow. When the power supply is unstable and the interference is large, there is an obvious phenomenon of no response to the key. It has been verified by experiments that it is most appropriate to select a 6PF capacitor to filter the interference.

[0043] In some optional embodiments, the touch button circuit 400 includes a chip YS806 and a peripheral circuit of the chip YS806.

[0044] Specifically, refer to Figure 3, Pin 2 of chip YS806 matches the touch information of touch key K5 through resistor R8, Pin 3 of chip YS806 matches the touch information of touch key K6 through resistor R7, Pin 4 of chip YS806 matches the touch information of touch key K7 through resistor R6, Pin 5 of chip YS806 matches the touch information of touch key K8 through resistor R9, Pin 6 of chip YS806 matches the touch information of touch key K1 through resistor R5, Pin 7 of chip YS806 matches the touch information of touch key K1 through resistor R4 The touch information of touch key K2 is matched by pin 8 of chip YS806 through resistor R10, and the touch information of touch key K3 is matched by pin 9 of chip YS806 through resistor R11. After the touch information is processed by chip YS806, the processed touch information is sent to pins 9 and 10 of the main control chip through pins 13 and 14. Specifically, pin 13 of chip YS806 is connected to pin 9 of the main control chip, and pin 14 of chip YS806 is connected to pin 10 of the main control chip. Resistors R14 and R15 match the input voltage and input it to pin 16 of chip YS806. Capacitor C29 filters the ripple. Capacitors EC2 and C2 filter the power supply noise of pins 11 and 12 of chip YS806.

[0045] In some optional embodiments, the control device further includes a voice module, the voice module includes a voice playing circuit, and the voice playing circuit is used for playing voice after receiving voice information from the main control chip.

[0046] Specifically, refer to Figure 4 The voice playback circuit includes a chip NY5P085AS8. The power supply voltage is input to pin 6 of the chip NY5P085AS8. The power supply voltage is matched by resistor R23 and then input to the corresponding current. After being amplified by transistor Q2 and filtered by capacitor C8, the current is input to pin 6 of the chip NY5P085AS8. Pin 26 of the main control chip outputs the corresponding voice information to the endpoint DAC of the voice playback circuit. After being filtered by the RC circuit composed of resistors R21, R19 and capacitor C18, the current is input to pin 3 of the chip NY5P085AS8. After being processed by the chip NY5P085AS8, the voice information is output to CN3 through pins 4 and 5. CN3 is connected to the corresponding speaker for playback.

[0047] In some optional embodiments, the control device further includes a clock module, the clock module includes a clock circuit, and the clock circuit is used to generate a clock signal and send the clock signal to the main control chip.

[0048] In some optional embodiments, the clock circuit includes a clock chip HT1381 and a peripheral circuit of the clock chip HT1381.

[0049] Specifically, refer to Figure 5 The clock crystal X1 of the clock circuit generates a crystal signal which is filtered by capacitors C15 and C16 and then input to pins 2 and 3 of the clock chip HT1381. After being processed by the clock chip HT1381, the clock signal is output to the main control chip R7FC90. Specifically, the clock chip HT1381 pin 5 is connected to the main control chip R7FC90 pin 19, the clock chip HT1381 pin 6 is connected to the main control chip R7FC90 pin 18, and the clock chip HT1381 pin 7 is connected to the main control chip R7FC90 pin 17, thereby transmitting the clock signal. Resistors R26-R28 match the input voltage, and diode D2 filters out the ripple voltage. After passing through the RC filtering circuit of resistors R29, EC4 and C5, the signal is input to pin 8 of the clock chip HT1381, thereby providing power supply voltage for the clock chip HT1381.

[0050] In some optional embodiments, the display module includes an LCD driving circuit and an LCD interface circuit, an input end of the LCD driving circuit is connected to the main control chip, and an output end of the LCD driving circuit is connected to the LCD interface circuit.

[0051] Specifically, refer to Figure 6 , pin 25 of the main control chip R7FC90 is connected to pin 2 of the LCD drive circuit chip HT1621B, pin 9 of the main control chip R7FC90 is connected to pin 4 of the LCD drive circuit chip HT1621B, pin 10 of the main control chip R7FC90 is connected to pin 3 of the LCD drive circuit chip HT1621B, pin 11 of the main control chip R7FC90 is connected to pin 1 of the LCD drive circuit chip HT1621B, thereby transmitting display information to the chip HT1621B through the main control chip R7FC90, and the chip HT1621B is connected to the LCD The interface circuit is connected, specifically, pins 23-48 of the chip HT1621B are connected to pins 4-30 of the socket LCD1 of the LCD interface circuit, such as pin 23 of the chip HT1621B is connected to pin 30 of the socket LCD1, and so on; pins 13-16 of the chip HT1621B are connected to pins 1-4 of the socket LCD1 of the LCD interface circuit, such as pin 13 of the chip HT1621B is connected to pin 4 of the socket LCD1, and so on, thereby sending display information to the LCD interface circuit, and the LCD interface circuit sends the display information to the display screen for display.

[0052] The implementation of the utility model embodiment includes the following beneficial effects: the utility model embodiment provides an anti-interference electric water heater control device, including a main control module, a display module, an input module and a communication module; the input module includes a touch key unit, the touch key unit includes a touch key circuit 400 and an anti-interference circuit 500, the anti-interference circuit 500 is used to filter the interference information of the touch key circuit 400, the touch key circuit 400 is used to obtain touch information, and the anti-interference circuit 500 includes a plurality of anti-interference capacitors; the main control module includes a main control chip and a main control chip peripheral circuit, the peripheral circuit includes a thin code switch circuit 100, the thin code switch circuit 100 is used to input the selected model information to the main control chip; the display module is used to display the display information sent by the main control chip; the communication module includes a WiFi communication circuit, the WiFi communication circuit is used to send the instruction information of the main control chip to the electric water heater, and receive the feedback information of the electric water heater, and send the feedback information to the main control chip. The interference of the touch button circuit 400 is filtered out by the anti-interference circuit 500, and the anti-interference ability is strong. The WiFi communication circuit can communicate with the electric water heater in time, the electric water heater responds well, the product has excellent performance and good user experience.

[0053] In a second aspect, an embodiment of the utility model provides an electric water heater control system, comprising the above-mentioned control device and a water heater, wherein the water heater is wirelessly connected to the control device.

[0054] It can be seen that the contents of the above control device embodiments are all applicable to the present system embodiments, the functions specifically implemented by the present system embodiments are the same as those of the above control device embodiments, and the beneficial effects achieved are also the same as those achieved by the above control device embodiments.

[0055] In the description of this specification, the description with reference to the term "in a specific embodiment" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An anti-interference electric water heater control device, characterized in that: It includes a main control module, a display module, an input module and a communication module; The input module includes a touch key unit, the touch key unit includes a touch key circuit and an anti-interference circuit, the anti-interference circuit is used to filter interference information of the touch key circuit, the touch key circuit is used to obtain touch information, and the anti-interference circuit includes a plurality of anti-interference capacitors; The main control module includes a main control chip and a peripheral circuit of the main control chip, wherein the peripheral circuit includes a thin code switch circuit, and the thin code switch circuit is used to input the selected model information to the main control chip; The display module is used to display the display information sent by the main control chip; The communication module includes a WiFi communication circuit, which is used to send the instruction information of the main control chip to the electric water heater, receive feedback information from the electric water heater, and send the feedback information to the main control chip.

2. The control device according to claim 1, characterized in that: The main control chip peripheral circuit also includes an alarm circuit, and the alarm circuit is used to sound an alarm after receiving the alarm information of the main control chip.

3. The anti-interference electric water heater control device according to claim 1, characterized in that: The anti-interference capacitor uses a 6pF capacitor.

4. The control device according to claim 1, characterized in that: The control device further comprises a voice module, and the voice module comprises a voice playing circuit, and the voice playing circuit is used for playing the voice after receiving the voice information of the main control chip.

5. The control device according to claim 1, characterized in that: The control device further includes a clock module, wherein the clock module includes a clock circuit, and the clock circuit is used to generate a clock signal and send the clock signal to the main control chip.

6. The control device according to claim 5, characterized in that: The clock circuit includes a clock chip HT1381 and a peripheral circuit of the clock chip HT1381.

7. The control device according to claim 1, characterized in that: The touch key circuit includes a chip YS806 and a peripheral circuit of the chip YS806.

8. The control device according to claim 1, characterized in that: The display module comprises an LCD driving circuit and an LCD interface circuit. The input end of the LCD driving circuit is connected to the main control chip, and the output end of the LCD driving circuit is connected to the LCD interface circuit.

9. The control device according to claim 1, characterized in that: The main control chip peripheral circuit also includes a reset circuit, and the reset circuit is used to generate reset information to the main control chip.

10. An electric water heater control system, characterized in that: It comprises the control device according to any one of claims 1 to 9 and a water heater, wherein the water heater is wirelessly connected to the control device.

Images