Liquid crystal control switch for a heater

Abstract

The utility model discloses a liquid crystal control switch for heater, include: bottom shell, the top of bottom shell is provided with upper lid shell, be provided with control circuit board between bottom shell and upper lid shell, the utility model relates to control switch technical field, this control circuit board, the array insertion post positioning fixed in bottom shell mounting groove, cooperate the clamping structure of upper lid shell and bottom shell, insertion post, form compact and stable hardware assembly system, effectively avoid the problem of bad line contact caused by vibration, displacement, control circuit board has manual and automatic control mode simultaneously, and manual mode realizes the power regulation of gear through upper key, lower key, adapts the individualized demand of user to heating intensity, and automatic mode is based on temperature sensor signal, and automatic control power.

Description

Technical Field

[0001] This utility model relates to the field of control switch technology, specifically to a liquid crystal control switch for a heater. Background Technology

[0002] In scenarios such as home heating and industrial insulation, the heater is the core heating equipment. The precise control of its operating status directly affects the heating effect, energy consumption and equipment lifespan. The control switch, as the "control center" of the heater, is key to improving the overall experience of the equipment.

[0003] Most existing heater control devices are based on a single control mode, with some only supporting manual gear adjustment. Users need to frequently operate buttons to switch gears according to changes in ambient temperature. Especially in unattended industrial scenarios or home nighttime heating scenarios, automatic temperature adaptation cannot be achieved, which increases the user's operating burden and makes it difficult to maintain a constant temperature environment. Other devices have automatic temperature control functions, but lack manual intervention options. When users need to temporarily adjust the heating intensity, they cannot flexibly switch control logic. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a liquid crystal control switch for heaters, which solves the problem that existing heater control devices are mostly based on a single control mode and cannot flexibly switch control logic.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A liquid crystal control switch for a heater includes: a bottom shell, with an upper cover shell disposed on the top of the bottom shell; an installation groove is formed on the outer wall of the top of the bottom shell, a pin is fixedly connected to the inner wall of the bottom of the installation groove, an adhesive backing is fixedly connected to the outer wall of the bottom of the bottom shell, and a control circuit board is slidably connected to the inner wall of the installation groove.

[0006] Preferably, the insertion posts are arranged in an array at the four corners of the mounting groove, and the outer wall of the insertion posts is slidably connected to the inner wall of the control circuit board.

[0007] Preferably, the outer wall of the top of the control circuit board is fixedly connected to a power button, a function button, an up button, a down button, and an LCD panel, and the outer wall of the control circuit board is connected to the signal interfaces of the pressure sensor, the temperature sensor, and the heater.

[0008] Preferably, the power button, function button, up button, and down button are respectively located at the four corners of the LCD panel. The power button, function button, and other operation buttons, along with the LCD panel display module, form a hardware closed loop of "input-processing-output".

[0009] Preferably, the inner wall of the bottom shell is provided with a wire groove, the outer wall of the insertion post is engaged with the inner wall of the bottom of the upper cover shell, the inner wall of the upper cover shell is slidably connected to the power button, function button, up button, down button and the outer wall of the LCD panel, and the control circuit board is positioned and fixed by the insertion post in the mounting groove of the bottom shell.

[0010] This invention provides a liquid crystal control switch for a heater. It has the following advantages: (i) The bottom shell and the control circuit board are positioned and fixed by the array of pins in the mounting slot of the bottom shell. Together with the snap-fit ​​structure of the top cover shell, the bottom shell and the pins, a compact and stable hardware assembly system is formed, which effectively avoids poor circuit contact caused by vibration and displacement, and provides a solid hardware foundation for subsequent signal transmission and instruction execution.

[0011] (ii) The control circuit board has both manual and automatic control modes. In manual mode, the power can be adjusted by using the up and down keys to meet the user's personalized needs for heating intensity. In automatic mode, the power is automatically adjusted based on the temperature sensor signal to meet the needs of unattended operation or constant temperature environment. The two modes can be switched with one key to flexibly adapt to different usage scenarios such as home and industry. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a schematic diagram of the control circuit board of this utility model; Figure 4 This is a schematic diagram of the overall process of this utility model.

[0013] In the diagram: 1. Bottom shell; 2. Mounting slot; 3. Insert post; 5. Control circuit board; 6. Power button; 7. Function button; 8. Up button; 9. Down button; 10. LCD panel; 11. Top cover. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4This utility model provides a technical solution: a liquid crystal control switch for a heater, comprising: a bottom shell 1, an upper cover shell 11 disposed on the top of the bottom shell 1; an installation groove 2 is provided on the outer wall of the top of the bottom shell 1, a plug 3 is fixedly connected to the inner wall of the bottom of the installation groove 2, an adhesive backing is fixedly connected to the outer wall of the bottom of the bottom shell 1, and a control circuit board 5 is slidably connected to the inner wall of the installation groove 2.

[0016] The inserts 3 are arranged in an array at the four corners of the mounting groove 2, and the outer wall of the inserts 3 is slidably connected to the inner wall of the control circuit board 5.

[0017] The top outer wall of the control circuit board 5 is fixedly connected to the power button 6, function button 7, up button 8, down button 9 and LCD panel 10. The outer wall of the control circuit board 5 is connected to the signal interface of the air pressure sensor, temperature sensor and heater.

[0018] The power button 6, function button 7, up button 8, and down button 9 are respectively located at the four corners of the LCD panel 10. The power button 6, function button 7, and other operation buttons, along with the LCD panel 10 display module, form a hardware closed loop of "input-processing-output".

[0019] The inner wall of the bottom shell 1 is provided with a wire groove, the outer wall of the insertion post 3 is engaged with the inner wall of the bottom of the upper cover shell 11, the inner wall of the upper cover shell 11 is slidably connected to the power button 6, function button 7, up button 8, down button 9 and the outer wall of the LCD panel 10, and the control circuit board 5 is positioned and fixed by the insertion post 3 in the mounting groove 2 of the bottom shell 1.

[0020] In use, the control circuit board 5 is positioned and fixed by the plug 3 in the mounting slot 2 of the bottom shell 1, serving as the "brain" of the entire switch. Its outer wall is connected to the signal interfaces of the pressure sensor, temperature sensor, and heater, respectively. It also integrates operation buttons such as the power button 6 and function button 7, as well as the LCD panel 10 display module, forming a hardware closed loop of "input-processing-output". After the upper cover 11 is snapped and fixed to the bottom shell 1 and the plug 3, it provides protection for the internal components without affecting the button operation and LCD display. The temperature sensor collects ambient or target temperature signals, and the button receives user operation signals. Both are transmitted to the control circuit board 5. After the control circuit board 5 analyzes and processes the signals, it sends display signals to the LCD panel 10 on the one hand, and power adjustment, start and stop control signals to the heater on the other hand. At the same time, the air pressure sensor can help monitor the operating environment status. The user switches to manual mode using the "function key 7" on the top cover 11, and then adjusts the heating level using the "up key 8" and "down key 9". After receiving the key signals, the control circuit board 5 parses the level instructions and sends the corresponding power control signal to the heater to adjust the heater's output power. At the same time, it sends a level display signal to the LCD panel 10, which displays the current level status in real time for the user to view intuitively. The control circuit board 5 receives temperature sensor signals in real time, prioritizing the measurement value of the external lead temperature sensor. The user sets the target temperature range through the keys, and the control circuit board 5 compares the collected real-time temperature with the set temperature. When the real-time temperature is lower than the lower limit of the set value, it sends a signal to increase the power to the heater; when the real-time temperature is higher than the upper limit of the set value, it sends a signal to decrease the power or stop the heater. The user switches to ventilation mode via "function key 7". After the control circuit board 5 interprets the instruction, it sends a control signal to the heater to "start the fan only and stop the heating module". The fan runs to achieve air circulation, and the core heating component of the heater does not work. The LCD panel 10 displays "ventilation mode" or the corresponding logo to indicate the current functional status. After initial installation, the user triggers the "fuel pump button". After receiving the signal, the control circuit board 5 sends a fuel pump control command to the heater fuel supply system, driving the fuel pump to run and quickly fill the fuel line. After the fuel pumping is completed, the control circuit board 5 automatically stops the fuel pumping and displays "fuel pumping complete" or a prompt message on the LCD panel 10. The LCD panel 10 needs to be connected to a constant power supply to ensure timing accuracy. The user sets the timing plan through the buttons. The timing module built into the control circuit board 5 automatically sends a signal to the heater to start, stop or adjust the heating time after the set time is reached. The LCD panel 10 can display the set timing plan and the remaining time. Users can switch to query mode by using "function key 7". After the control circuit board 5 parses the instructions, it retrieves the pre-stored heater software version number, historical fault codes and other information, and sends them to the LCD panel 10 for display, helping users or maintenance personnel to understand the basic information of the equipment and the root cause of the fault. "Power button 6" controls the on / off state of the entire switching system. When power button 6 is pressed, the control circuit board 5 connects or disconnects from the external power supply, realizing the overall start and stop of the heater control function. If the heater malfunctions, the control circuit board 5 receives the fault signal and immediately sends a shutdown or protection signal to the heater. At the same time, the corresponding fault information is displayed on the LCD panel 10 to remind the user to troubleshoot. The control logic of control circuit board 5: With the MCU microcontroller unit as the core, it realizes precise control of the heater through a closed-loop process of "information input - logic processing - instruction output - status feedback"; Information Acquisition: Multi-source data input to the MCU. First, the system transmits basic information to the MCU through two channels: one is the "current status of each button" and the "trigger status of each function setting button", capturing the user's operation commands; the other is to collect environmental and equipment parameters such as indoor temperature, altitude, heater return air temperature, inlet / outlet water temperature, combustion fan speed, and oil pump operating frequency through devices such as barometric pressure sensors and temperature sensors. At the same time, it acquires system information such as power supply voltage, hardware version, software version, and timed on / off parameters to provide data support for subsequent control. Mode determination: The heater operation logic MCU determines whether to enter "user mode" or "debugging mode" based on the collected "control mode" setting information. If it is user mode, it further distinguishes between "automatic temperature control operation" or "manual gear operation". If it is debugging mode, it activates professional operation functions such as heating model selection, fuel type selection, manual oil pumping mode, and water pump forced control mode to adapt to the control needs of different usage scenarios. Command Output: Based on the mode judgment result and the collected data, the MCU sends signals to external devices. The MCU sends targeted operation commands to the heater through the "heater signal interface", such as start / stop / gear adjustment commands under automatic temperature control, specified gear operation commands in manual mode, or forced oil / water pump control commands in debugging mode. At the same time, the MCU transmits the information to be displayed to the LCD screen through the "LCD control panel signal interface" to present key data to the user. Status Display: Real-time Information Feedback from the LCD Screen. After receiving signals from the MCU, the LCD panel displays two types of information: First, "User Settings Information," including the current control mode, target room / water temperature, target setting, ventilation function status, and timing function parameters; second, "Heater Operating Status Information," covering the heater's current operating setting, diagnostic / fault information, combustion chamber temperature, heater hardware / software version, furnace body temperature, etc., allowing users to intuitively grasp the system's operating status. Abnormal Alarm: Timely Fault Status Reminder If the MCU detects an abnormality through the collected "Heater Diagnosis / Fault Information", it will immediately trigger the "Switch Buzzer" to emit a continuous audible alarm and simultaneously display the fault information on the LCD screen, reminding users or maintenance personnel to handle the situation in a timely manner and ensuring the safe operation of the system.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liquid crystal control switch for a heater, characterized in that, include: Bottom shell (1), and an upper cover shell (11) is provided on the top of the bottom shell (1). The outer wall of the top of the bottom shell (1) is provided with an installation groove (2), the inner wall of the bottom of the installation groove (2) is fixedly connected with a plug (3), the outer wall of the bottom of the bottom shell (1) is fixedly connected with an adhesive backing, and the inner wall of the installation groove (2) is slidably connected with a control circuit board (5).

2. The liquid crystal control switch for a heater according to claim 1, characterized in that: The inserts (3) are arranged in an array at the four corners of the mounting groove (2), and the outer wall of the inserts (3) is slidably connected to the inner wall of the control circuit board (5).

3. The liquid crystal control switch for a heater according to claim 2, characterized in that: The control circuit board (5) has a power button (6), a function button (7), an up button (8), a down button (9), and an LCD panel (10) fixedly connected to the outer wall of its top.

4. A liquid crystal control switch for a heater according to claim 3, characterized in that: The power button (6), function button (7), up button (8), and down button (9) are respectively located at the four corners of the LCD panel (10).

5. A liquid crystal control switch for a heater according to claim 1, characterized in that: The inner wall of the bottom shell (1) is provided with a wire groove, the outer wall of the insert (3) is engaged with the inner wall of the bottom of the upper cover shell (11), and the inner wall of the upper cover shell (11) is slidably connected to the power button (6), function button (7), up button (8), down button (9) and the outer wall of the liquid crystal panel (10).

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