Control system for total heat cabinet

Abstract

The utility model discloses a control system used for a total heat cabinet. The control system comprises a PCB circuit board, an integrated heat cabinet controller, an ADC interface module, a silicon controlled rectifier output module and a mainboard heat radiation module. An MCU control chip is adopted by the integrated hot cabinet controller, an ADC interface module is arranged at the input end of the integrated hot cabinet controller and comprises multiple ADC interfaces, the input end of each ADC interface is in communication connection with a temperature sensor arranged on the total hot cabinet, and the ADC interface module is used for converting analog signals sent by the temperature sensor into digital signals. The MCU control chip outputs a control signal according to the real-time temperature of the laminates of the total heat cabinet; the output end of the integrated hot cabinet controller is provided with a silicon controlled rectifier output module, the silicon controlled rectifier output module comprises a plurality of silicon controlled rectifier output interfaces, and the silicon controlled rectifier output interfaces are respectively in communication connection with a temperature sensor and are used for transmitting a control signal output by the MCU control chip to a heating device, so that the temperature of a single-layer laminate can be independently adjusted.

Description

Technical Field

[0001] The utility model relates to the field of display cabinets, in particular to a control system for a full-heat cabinet. Background Art

[0002] A display cabinet is a display cabinet that provides low-temperature cold air to the commodity storage space in the cabinet through refrigeration equipment to achieve a single low-temperature storage function. With the advent of dual-purpose cold and hot commodity display cabinets, especially under the premise of storing two types of temperature-controlled commodities in the same cabinet cavity at the same time, the same cabinet will have three random control usage states under different users and different application occasions: full cold use, mixed cold and hot use, and full hot use. The take-out industry is becoming more mature and the competition is becoming more fierce. How to improve the efficiency of food delivery, centralized food delivery in office buildings and office buildings, and self-service pick-up in the customer lobby or front desk are becoming the industry trend. How to keep the food temperature at an appropriate state for a long time has become an urgent problem to be solved in the industry. A large-capacity heating display cabinet, especially a heating display cabinet with precise layered temperature control, has become a better choice. The display cabinet relies on the thermostat to control the heating output ratio to achieve the purpose of adjusting the internal temperature of the display cabinet. When the temperature measured by the temperature probe is lower than the temperature set by the thermostat, the heating device runs to increase the temperature of the corresponding shelf; when the temperature measured by the temperature probe reaches the temperature set by the thermostat, the heating device begins to output at a ratio through PID adjustment to keep the shelf temperature near the set temperature.

[0003] For example, the patent document with patent number 202020062509.X discloses a vertical refrigeration display cabinet, including a cabinet body and a refrigeration system, the cabinet body consisting of an air-cooled chamber and a unit chamber; a plurality of shelves are arranged in sequence from top to bottom in the air-cooled chamber, and an infrared temperature sensor is arranged at the back of each shelf. The infrared temperature sensor is used to detect the actual temperature of each layer of goods in real time, and transmit the temperature information to the temperature controller. The thermostat receives the data information of the infrared temperature sensor, calculates the average temperature, and then controls the start and stop of the refrigeration system.

[0004] The above patent solution solves the problem that most display cabinets in the prior art have only one temperature sensing probe for measuring the temperature inside the cabinet by setting up multiple infrared temperature sensors, resulting in the measured temperature being usually the temperature of a certain area of ​​the refrigerator, which deviates greatly from the actual temperature.

[0005] However, the thermostat of the above patent solution receives data information from the infrared temperature sensor and controls the start and stop of the refrigeration system by calculating the average temperature, which results in a unified temperature adjustment in the display cabinet, making it impossible to achieve separate temperature control of different shelves in the display cabinet.

[0006] Therefore, it is necessary for us to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0007] The utility model aims to provide a control system for a full-heat cabinet to solve the problems existing in the prior art.

[0008] The above technical objectives of the utility model are achieved through the following technical solutions:

[0009] A control system for a full thermal cabinet, comprising a PCB circuit board, and an integrated thermal cabinet controller, an ADC interface module, a thyristor output module and a mainboard heat dissipation module arranged on the PCB circuit board;

[0010] The integrated hot cabinet controller adopts an MCU control chip, and an ADC interface module is provided at the input end of the integrated hot cabinet controller. The ADC interface module includes a multi-channel ADC interface, and the ADC interface input end is communicatively connected with a temperature sensor provided on the full hot cabinet. The ADC interface module is used to convert the analog signal sent by the temperature sensor into a digital signal, and transmit it to the MCU control chip. The MCU control chip outputs a control ratio according to the real-time temperature of the shelf of the full hot cabinet to keep the shelf temperature constant;

[0011] The output end of the integrated heating cabinet controller is provided with a thyristor output module, which includes multiple thyristor output interfaces, each of which is communicatively connected to a temperature sensor, and is used to transmit the control signal output by the MCU control chip to the heating device;

[0012] The mainboard heat dissipation module includes several fans, which are arranged on the side of the integrated thermal cabinet controller, ADC interface module and thyristor output module. When the temperature sensor located on the PCB circuit board detects that the temperature is higher than the set value, the fan heat dissipation is turned on to prevent the control system temperature from being too high.

[0013] Furthermore, the full-heat cabinet divides the internal space of the cabinet into several storage layers through several layers, and a temperature sensor and a heating device are provided at each storage layer;

[0014] Furthermore, the temperature sensor is used to detect the real-time temperature of the current storage layer and transmit it to the integrated heat cabinet controller through the ADC interface module; the heating device receives the control signal sent by the integrated heat cabinet controller through the thyristor output module, and adjusts the real-time temperature of the current storage layer according to the control signal.

[0015] Furthermore, the ADC interface module includes 10 ADC interfaces, the thyristor output module includes 10 thyristor output interfaces, and the ADC interface module and the thyristor output module are used to realize independent adjustment of the temperature of a single-layer board.

[0016] Furthermore, the integrated hot cabinet controller is also provided with a switch output port, which is connected to the lighting lamp on the whole hot cabinet and is used to independently control the lighting lamp to be turned on / off.

[0017] Furthermore, the mainboard cooling module includes several fans, which are arranged on the sides of the integrated thermal cabinet controller, ADC interface module and thyristor output module. When the temperature sensor located on the PCB circuit board detects that the temperature is higher than the set value, the integrated thermal cabinet controller controls to turn on the fans for cooling to prevent the control system temperature from being too high.

[0018] Furthermore, the PCB circuit board is connected to a display, the display includes a housing and a control unit, the housing includes a panel and a rear housing, the panel and the rear housing are connected, the panel and the rear housing together form a receiving space, and the panel is provided with a key slot and a display slot;

[0019] The control unit includes a circuit board and a digital tube. The circuit board is installed in the housing. A key unit is integrated on the circuit board. One end of the key unit is connected to the circuit board, and the other end of the key unit corresponds to the key slot. One end of the digital tube is connected to the circuit board, and the other end of the digital tube corresponds to the display slot.

[0020] The circuit board is integrated with a power module, a storage module, a temperature detection module, a temperature control module, a pressure detection module, a voltage detection module and a current detection module;

[0021] The digital tube is connected to the circuit board via electrical signals, and an indicator bar indicating the current working status of the system is integrated on the digital tube.

[0022] In summary, the utility model has the following beneficial effects:

[0023] By setting multiple ADC interfaces and thyristor output interfaces on the MCU control chip, the MCU control chip can receive the temperature of different shelves through the ADC interface, and feed back the control signal to the heating device at the corresponding shelf through the corresponding thyristor output interface, thereby realizing independent adjustment of the temperature of a single layer of shelves in the display cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a module block diagram of a control system for a full-heat cabinet described in the utility model.

[0025] Figure 2 It is a structural schematic diagram of the display described in the utility model.

[0026] Figure 3 It is a three-dimensional diagram of the housing of the display described in the utility model.

[0027] Figure 4 It is a three-dimensional diagram of the housing of the display described in the utility model from another angle.

[0028] Figure 5 It is a stereoscopic diagram of a control unit of a display according to the utility model. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with illustrations and specific embodiments.

[0030] like Figure 1 As shown, the utility model proposes a control system for a full thermal cabinet, including a PCB circuit board, and an integrated thermal cabinet controller, an ADC interface module, a thyristor output module and a mainboard heat dissipation module arranged on the PCB circuit board;

[0031] The integrated hot cabinet controller adopts an MCU control chip, and an ADC interface module is provided at the input end of the integrated hot cabinet controller. The ADC interface module includes a multi-channel ADC interface. The ADC interface input end is communicatively connected with a temperature sensor provided on the full hot cabinet. The ADC interface module is used to convert the analog signal sent by the temperature sensor into a digital signal and transmit it to the MCU control chip. The MCU control chip outputs a control signal according to the real-time temperature of the shelf of the full hot cabinet to keep the shelf temperature constant.

[0032] The output end of the integrated heating cabinet controller is provided with a thyristor output module, which includes multiple thyristor output interfaces, each of which is communicatively connected to a temperature sensor, and is used to transmit the control signal output by the MCU control chip to the heating device;

[0033] The mainboard heat dissipation module includes several fans, which are arranged on the side of the integrated thermal cabinet controller, ADC interface module and thyristor output module. When the temperature sensor located on the PCB circuit board detects that the temperature is higher than the set value, the fan heat dissipation is turned on to prevent the control system temperature from being too high.

[0034] The full-heat cabinet divides the internal space of the cabinet into several storage layers through several layers, and a temperature sensor and a heating device are arranged at each storage layer;

[0035] The temperature sensor is used to detect the real-time temperature of the current storage layer and transmit it to the integrated heat cabinet controller through the ADC interface module; the heating device receives the control signal sent by the integrated heat cabinet controller through the thyristor output module, and adjusts the real-time temperature of the current storage layer according to the control signal.

[0036] The ADC interface module includes 10 ADC interfaces, and the thyristor output module includes 10 thyristor output interfaces. The ADC interface module and the thyristor output module are used to independently adjust the temperature of a single-layer board.

[0037] The integrated thermal cabinet controller is also provided with a switch output port, which is connected to the lighting lamp on the thermal cabinet and is used to independently control the lighting lamp to be turned on / off.

[0038] The mainboard cooling module includes several fans, which are arranged on the side of the integrated thermal cabinet controller, ADC interface module and thyristor output module. When the temperature sensor located on the PCB circuit board detects that the temperature is higher than the set value, the integrated thermal cabinet controller controls the fan to turn on the heat dissipation to prevent the control system temperature from being too high.

[0039] Furthermore, the PCB circuit board is connected to a display, the display includes a housing and a control unit, the housing includes a panel 1 and a rear housing 2, the panel and the rear housing are connected, the panel and the rear housing together form a receiving space, and the panel is provided with a key slot 3 and a display slot 4;

[0040] The control unit includes a circuit board 5 and a digital tube 6. The circuit board is installed in the housing. A key unit 7 is integrated on the circuit board. One end of the key unit is connected to the circuit board, and the other end of the key unit corresponds to the key slot. One end of the digital tube is connected to the circuit board, and the other end of the digital tube corresponds to the display slot.

[0041] The circuit board is integrated with a power module 8, a storage module 9, a temperature detection module 10, and a temperature control module 11;

[0042] The digital tube is connected to the circuit board via an electrical signal, and an indicator bar 15 indicating the current working status of the system is integrated on the digital tube.

[0043] In this embodiment, the indicator bar includes a plurality of LED segments arranged in a row at the bottom of the digital tube. The number of LEDs is 10, which are 7 green, 2 yellow and 1 red from left to right. The LED digital tube technology is existing technology and will not be described in detail here.

[0044] External clamps 16 are provided on both sides of the rear shell, and the lower end of the external clamps is connected to the rear shell. A gasket 17 is provided under the panel, and the gasket is fixed between the panel and the external clamps through the external clamps. Since the lower end of the external clamps is connected to the rear shell, and the upper end of the external clamps is movable, when the gasket is installed, the gasket can be passed through the external clamps by pressing the upper end of the external clamps. When the external clamps are released, the external clamps rebound so that the bottom surface of the gasket abuts against the upper end of the external clamps to fix the gasket. Card slots are provided on both sides of the rear shell, and the circuit board is fixed in the rear shell through the card slots. The card slots include an upper stop 18 and a lower stop 19. The upper stop is fixedly connected to the rear shell, and one end of the lower stop is connected to the rear shell.

[0045] In this example, since the upper stop is fixed to the rear shell, the lower end of the lower stop is used to connect to the rear shell, and the upper end of the lower stop is movable, when the circuit board is installed, the circuit board can pass through the lower stop by squeezing the upper end of the lower stop. When the circuit board passes through the lower stop, the upper end of the lower stop rebounds to make the bottom surface of the circuit board abut against the upper end of the lower stop, and at the same time, the top surface of the circuit board abuts against the bottom surface of the upper stop to fix the circuit board.

[0046] In this embodiment, it is further configured that a button 20 is provided on the top of the button unit, and the button corresponds to the button slot.

[0047] The working principle of the utility model is as follows:

[0048] By setting multiple ADC interfaces and thyristor output interfaces on the MCU control chip, the MCU control chip can receive the temperature of different shelves through the ADC interface, and feed back the control signal to the heating device at the corresponding shelf through the corresponding thyristor output interface, thereby realizing independent adjustment of the temperature of a single layer of shelves in the display cabinet.

[0049] In this document, the directions or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", and "horizontal" are based on the directions or positional relationships shown in the accompanying drawings and are only for the clarity of the technical solution and the convenience of description. Therefore, they should not be understood as limitations on the present invention.

[0050] In this document, the terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than those listed and may also include additional elements not expressly listed.

[0051] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A control system for a full-heat cabinet, characterized in that: It includes a PCB circuit board, and an integrated thermal cabinet controller, an ADC interface module, a thyristor output module and a mainboard heat dissipation module are arranged on the PCB circuit board; The integrated hot cabinet controller adopts an MCU control chip, and an ADC interface module is provided at the input end of the integrated hot cabinet controller. The ADC interface module includes a multi-channel ADC interface, and the ADC interface input end is communicatively connected with a temperature sensor arranged on the full hot cabinet. The ADC interface module is used to convert the analog signal sent by the temperature sensor into a digital signal, and transmit it to the MCU control chip. The MCU control chip adjusts the output control ratio according to the real-time temperature of the shelf of the full hot cabinet to keep the shelf temperature constant; The output end of the integrated heating cabinet controller is provided with a thyristor output module, which includes multiple thyristor output interfaces, each of which is communicatively connected to a temperature sensor, and is used to transmit the control signal output by the MCU control chip to the heating device; The mainboard heat dissipation module includes a plurality of fans, which are arranged on the side of the integrated thermal cabinet controller, the ADC interface module and the thyristor output module, and are used to prevent the control system temperature from being too high.

2. The control system for a full-heat cabinet according to claim 1, characterized in that: The full-heat cabinet divides the internal space of the cabinet into several storage layers through several layers, and a temperature sensor and a heating device are arranged at each storage layer; The temperature sensor is used to detect the real-time temperature of the current storage layer and transmit it to the integrated heat cabinet controller through the ADC interface module; the heating device receives the control signal sent by the integrated heat cabinet controller through the thyristor output module, and adjusts the real-time temperature of the current storage layer according to the control signal.

3. The control system for a full-heat cabinet according to claim 1, characterized in that: The ADC interface module includes 10 ADC interfaces, and the thyristor output module includes 10 thyristor output interfaces. The ADC interface module and the thyristor output module are used to independently adjust the temperature of a single-layer board.

4. The control system for a full thermal cabinet according to claim 1, characterized in that: The integrated thermal cabinet controller is also provided with a switch output port, which is connected to the lighting lamp on the thermal cabinet and is used to independently control the lighting lamp to be turned on / off.

5. The control system for a full thermal cabinet according to claim 1, characterized in that: The PCB circuit board is connected to a display, the display comprises a housing and a control unit, the housing comprises a panel (1) and a rear housing (2), the panel and the rear housing are connected, the panel and the rear housing together enclose a receiving space, and the panel is provided with a key slot (3) and a display slot (4); The control unit comprises a circuit board (5) and a digital tube (6), the circuit board is installed in the housing, a key unit (7) is integrated on the circuit board, one end of the key unit is connected to the circuit board, and the other end of the key unit corresponds to the key slot, one end of the digital tube is connected to the circuit board, and the other end of the digital tube corresponds to the display slot; A power module (8), a storage module (9), a temperature detection module (10), and a temperature control module (11) are integrated on the circuit board; The digital tube is connected to the circuit board via an electrical signal, and an indicator bar (15) indicating the current working state of the system is integrated on the digital tube.

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