Household heat pump all-in-one machine electrical control system

Abstract

The utility model relates to the technical field of heat pump electrical control, in particular to an electrical control system of a household heat pump all-in-one machine, which comprises a control mainboard arranged in an electrical box and used for controlling the operation of a heat pump all-in-one machine, and a chip program module, a mainboard power supply module, a relay output module, a temperature module, a voltage module and a flow detection module are arranged on the control mainboard. All the modules are matched with one another to achieve system control, instruction sending and receiving, switch control and fault detection of the unit, and the running state of the heat pump integrated unit is adjusted in real time through the chip program module. The electric leakage detector monitors electric leakage signals of the system in real time, the electric leakage signals are transmitted to the chip program module in time, the system can automatically stop running, abnormal flowing of current is detected at the initial stage of electric leakage, and the electrical safety is improved. The fault alarm and the fault lamp can automatically and rapidly give an alarm, thereby improving the alertness of a user to an electrical fault, rapidly taking countermeasures, and avoiding accident spread.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pump electrical control, in particular to an electrical control system for a household heat pump all-in-one machine. Background Art

[0002] A heat pump is a device that transfers low-temperature heat energy to high-temperature heat energy. It is commonly used in heating, cooling, and water heating applications. Integrated heat pumps utilize this technology for highly efficient heat exchange. They transfer heat through a circulation system consisting of an evaporator, compressor, condenser, and expansion valve. Heat from the environment is absorbed by the evaporator, raised in temperature by the compressor, and then transferred to the condenser, heating the water or air.

[0003] However, during the use of the heat pump all-in-one machine, leakage is often related to problems such as poor circuit connection or equipment aging. These problems may affect the normal operation of the heat pump all-in-one machine and reduce its energy efficiency and stability.

[0004] When users discover a leakage problem, it takes longer to identify the source, increasing repair time and costs. Leakage can also cause premature equipment failure, requiring replacement of components or the entire system, increasing maintenance and replacement costs.

[0005] If not replaced promptly, equipment failures will frequently occur, impacting the normal operation and performance of the entire system. Leakage can cause unforeseen impacts on users, and even worse, lead to serious accidents such as electric shock or fire, seriously endangering the safety of users' lives and property. Heat pump all-in-one units are unable to implement the required intelligent management functions, affecting the system's intelligence level and ease of use. Summary of the Invention

[0006] The technical problem to be solved by the utility model is to provide an electrical control system for a household heat pump all-in-one machine that addresses the deficiencies of the existing technology and technically meets user needs and is more effective, more energy-efficient, and more environmentally friendly.

[0007] The technical problem to be solved by the present invention is achieved through the following technical solutions: an electrical control system for a household heat pump all-in-one unit, comprising an evaporator, a water tank, a compressor, an electric heater, a DC fan, an AC motor and a four-way valve, and an electrical box. The electrical box is provided with a control mainboard for controlling the operation of the heat pump all-in-one unit. The control mainboard is provided with a chip program module, a mainboard power supply module, a communication port module, a relay output module, a temperature module, a voltage module and a flow detection module. The modules cooperate with each other to realize system control, instruction sending and receiving, switch control and fault detection of the unit.

[0008] The chip program module is equipped with a chip with a preset control program. The control program receives signals, analyzes them and outputs signals for program control. The chip program module adjusts the operating status of the heat pump integrated unit in real time. The entire system can automatically optimize its operation according to environmental conditions, thereby improving the working efficiency and energy efficiency of the heat pump.

[0009] The mainboard power supply module is connected to the external power supply through the integrated terminal block, and the integrated terminal block is electrically connected to the relay output module;

[0010] The voltage module is electrically connected to a leakage detector, which is also arranged between the integrated terminal block and the external power supply. When the leakage detector detects leakage, the leakage signal is transmitted to the chip program module for identification, and the power is stopped. The system monitors leakage in real time. Once leakage is detected, the leakage signal will be transmitted to the chip program module in time, and the system will automatically stop running, avoiding the occurrence of electrical accidents and ensuring safe use.

[0011] The communication port module is connected to a wired controller, which is connected to the unit signal communication. If the leakage detector detects no leakage, the wired controller will pass the unit signal to the chip program module to start the unit. Users can remotely control the unit through the wired controller, which is convenient for operations such as device switching and mode switching, improving the convenience of use and allowing flexible adjustment of parameters without approaching the unit.

[0012] As a further embodiment of the present invention, the voltage module input is connected to a power supply, the live wire of the power supply is connected to the input of a leakage detector, and the output of the leakage detector is connected to the input of the voltage module. This allows real-time monitoring of leakage in the circuit and detects abnormal current flow at the earliest stage of leakage, thereby improving electrical safety and preventing leakage damage to the voltage module and other equipment. Failure to promptly detect leakage could result in overload or prolonged abnormal operation of electrical equipment, damaging the equipment and shortening its service life.

[0013] As a further feature of the present invention, the voltage module is equipped with a fault alarm and a fault light. If the leakage detector detects a leakage current greater than 6mA, the fault alarm and fault light will sound an alarm. Leakage currents exceeding 6mA often pose a potential risk to human health. A timely alarm can effectively prevent electric shock accidents, thereby improving overall electrical safety. When the leakage current exceeds 6mA, the fault alarm and fault light automatically and quickly sound an alarm, drawing the user's attention and raising their awareness of electrical faults. This allows the user to quickly take countermeasures and prevent the incident from spreading.

[0014] As a further solution of the present invention, the relay output module includes a compressor relay, an electric heating relay, a DC fan relay, an AC motor relay, and a four-way valve relay. The compressor relay is electrically connected to the compressor, the electric heating relay is electrically connected to the electric heating relay, the DC fan relay is electrically connected to the DC fan, the AC motor relay is electrically connected to the AC motor, and the four-way valve relay is electrically connected to the four-way valve to control start and stop. Through centralized management and intelligent operation, the operating status of the system and overall operating efficiency can be effectively monitored and adjusted. Each relay module independently controls the start and stop of the corresponding equipment, and the control module can operate independently to ensure the overall stability of the system.

[0015] As a further solution of this utility model, the flow detection module is connected to a flow sensor. When the flow sensor detects a water flow rate of 0.5L / min-0.8L / min, it shuts down the compressor and power supply. This real-time monitoring of water flow and automatic shutdown of the compressor and power supply prevents equipment damage caused by insufficient flow, thereby improving the safety of the entire system, reducing energy waste, and achieving energy conservation and consumption reduction, thereby improving overall operational efficiency.

[0016] As a further solution of the present invention, the temperature module is connected to a coil temperature sensor, an ambient temperature sensor, an exhaust temperature sensor, a water tank temperature sensor, a return air temperature sensor, and an outlet air temperature sensor, which respectively detect the coil evaporation temperature, ambient temperature, exhaust temperature, water tank temperature, return air temperature, and outlet air temperature.

[0017] As a further solution of this invention, the chip program module is pre-programmed with preset compressor startup temperatures and water tank temperature settings. The water tank temperature setting is 15-75°C. When the water tank temperature reaches the preset value and the ambient temperature reaches the preset value, the compressor and DC fan are activated. The combination of the temperature module and multiple temperature sensors provides accurate temperature data monitoring, enabling intelligent management and optimizing system performance, enhancing equipment safety, reliability, and energy efficiency, and increasing system stability and service life. This improves equipment efficiency while enhancing the user experience, reducing the risk of failure, and achieving energy conservation and environmental protection goals.

[0018] The beneficial effects of the utility model are:

[0019] The utility model provides an electrical control system for a household heat pump all-in-one unit, which adjusts the operating status of the heat pump all-in-one unit in real time through a chip program module. The entire system can automatically optimize operation according to environmental conditions, thereby improving the working efficiency and energy efficiency of the heat pump.

[0020] The leakage detector monitors the system's leakage signals in real time, promptly transmitting them to the chip program module, automatically shutting down the system. This detects abnormal current flow at the earliest stages of leakage, improving electrical safety and preventing damage to the voltage module and other equipment. This prevents electrical accidents and ensures safe operation. The fault alarm and fault light automatically and quickly sound an alarm, drawing the user's attention and raising their awareness of electrical faults. This allows the user to quickly take countermeasures and prevent the accident from spreading.

[0021] The communication port module is connected to a wired controller, which is connected to the unit signal communication. Users can remotely control the unit through the wired controller, making it convenient to perform operations such as device switching and mode switching, which improves the convenience of use and allows flexible adjustment of parameters without approaching the unit.

[0022] The relay output module effectively monitors and adjusts the system's operating status and overall operating efficiency through centralized management and intelligent operation. Each relay module independently controls the start and stop of the corresponding equipment, and the control module can operate independently to ensure the overall stability of the system.

[0023] The flow detection module monitors the water flow in real time and automatically shuts down the compressor and power supply to prevent equipment damage due to insufficient flow, thereby improving the safety of the entire system, reducing energy waste, achieving energy conservation and consumption reduction, and improving overall operating efficiency.

[0024] The combination of a temperature module and multiple temperature sensors provides precise temperature data monitoring, enabling intelligent management and optimizing system performance. This enhances equipment safety, reliability, and energy efficiency, and increases system stability and service life. This improves equipment efficiency, enhances the user experience, reduces the risk of failure, and achieves energy conservation and environmental protection goals. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The system principle of this utility model Figure 1 .

[0026] Among them: 1-mainboard power supply module, 2-voltage module, 201-leakage detector, 3-integrated terminal block, 4-relay output module, 401-DC fan relay, 411-DC fan, 402-electric heating relay, 403-compressor relay, 404-AC motor relay, 441-AC motor, 405-four-way valve relay, 451-four-way valve, 5-electric heating, 6-compressor, 7-communication port module, 701-wire controller, 8-flow detection module, 801-flow sensor, 9-temperature module, 901-coil temperature sensor, 902-ambient temperature sensor, 903-exhaust temperature sensor, 904-water tank temperature sensor, 905-return air temperature sensor, 10-chip program module. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present utility model, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0029] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0030] Example 1

[0031] like Figure 1 As shown, an electrical control system for a household heat pump all-in-one unit includes an evaporator, a water tank, a compressor, an electric heater, a DC fan, an AC motor, and a four-way valve, and also includes an electrical box. The electrical box contains a control mainboard for controlling the operation of the heat pump all-in-one unit. The control mainboard is provided with a chip program module 10, a mainboard power supply module 1, a communication port module 7, a relay output module 4, a temperature module 9, a voltage module 2, and a flow detection module 8. These modules cooperate with each other to realize system control, command sending and receiving, switch control, and fault detection of the unit.

[0032] The chip program module 10 includes a chip with a pre-set control program. The control program receives signals, analyzes them, and then outputs signals for program control. The mainboard power supply module 1 is connected to an external power supply via an integrated terminal block 3. The external power supply then supplies power to the mainboard power supply module via the integrated terminal block 3. The integrated terminal block 3 is electrically connected to the relay output module 4. The output signal generated by the chip program module is transmitted to the relay output module. The relay output module converts the chip's low-power control signal into a signal capable of controlling a higher-power load.

[0033] The relay output module 4 includes a compressor relay 403, an electric heating relay 402, a DC fan relay 401, an AC motor relay 404 and a four-way valve relay 405. The compressor relay 403 is electrically connected to the compressor 6, the electric heating relay 402 is electrically connected to the electric heater 5, the DC fan relay 401 is electrically connected to the DC fan 411, the AC motor relay 404 is electrically connected to the AC motor 441, and the four-way valve relay 405 is electrically connected to the four-way valve to control the start and stop.

[0034] The relay opens or closes the circuit according to the output signal of the chip module, and controls the working states of the compressor 6, the electric heater 5, the DC fan 411, the AC motor 441, and the four-way valve 451 respectively.

[0035] The voltage module 2 is electrically connected to the leakage detector 201 , the voltage module input is connected to the power supply, the live wire of the power supply is connected to the input of the leakage detector 201 , and the output of the leakage detector 201 is connected to the voltage module input.

[0036] The leakage detector is also provided between the integrated terminal block 3 and the external power supply. When the leakage detector 201 detects leakage, the leakage signal is transmitted to the chip program module for identification, and the high-voltage power supply is immediately cut off to stop booting.

[0037] The voltage module 2 is provided with a fault alarm and a fault light. When the leakage detector detects that the leakage current is greater than 6mA, the fault alarm and the fault light will sound. The fault light will flash and the fault alarm will sound three times.

[0038] The communication port module 7 is connected to the wire controller 701, which is connected to the unit signal communication. If the leakage detector does not detect leakage, the wire controller transmits the unit 1 signal to the chip program module to start the unit;

[0039] Example 2

[0040] When the integrated heat pump unit of Example 1 is in normal operation, the flow detection module 8 is connected to the flow sensor 1101. The flow sensor detects that the water flow is 0.6 L / min, and turns off the compressor and the power supply.

[0041] Example 3

[0042] In the integrated heat pump unit, the temperature module 9 is connected to a coil temperature sensor 901, an ambient temperature sensor 902, an exhaust temperature sensor 903, a water tank temperature sensor 904, a return air temperature sensor 905, and an outlet air temperature sensor. These sensors detect the coil evaporating temperature, ambient temperature, exhaust temperature, water tank temperature, return air temperature, and outlet air temperature, respectively. If the coil evaporating temperature is lower than the ambient temperature, or the ambient temperature is below 7°C, the compressor will not start.

[0043] The chip program module 10 is pre-programmed with a compressor startup temperature preset value and a water tank temperature preset value. The water tank temperature preset value is 65°C. When the water tank temperature reaches the water tank temperature preset value and the ambient temperature reaches the temperature preset value, the compressor and DC fan are started.

[0044] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An electrical control system for a household heat pump, comprising an evaporator, a water tank, a compressor, an electric heater, a DC fan, an AC motor and a four-way valve, wherein: The invention also includes an electrical box, wherein a control mainboard for controlling the operation of the heat pump integrated unit is provided in the electrical box, and the control mainboard is provided with a chip program module (10), a mainboard power supply module (1), a communication port module (7), a relay output module (4), a temperature module (9), a voltage module (2), and a flow detection module (8), wherein the modules cooperate with each other to realize system control, instruction sending and receiving, switch control, and fault detection of the unit; The chip program module (10) is provided with a chip with a preset control program, the control program receives a signal, and outputs a signal after analysis to perform program control; The mainboard power supply module (1) is connected to an external power supply via an integrated terminal block (3), and the integrated terminal block is electrically connected to the relay output module; The voltage module (2) is electrically connected to a leakage detector (201), which is also arranged between the integrated terminal block and the external power supply. When the leakage detector detects leakage, the leakage signal is transmitted to the chip program module for recognition, and the power-on is stopped. The communication port module (7) is communicatively connected to a wire controller (701), which is connected to the unit signal communication. If the leakage detector (201) does not detect leakage, the wire controller transmits the unit signal to the chip program module to start the unit.

2. The electrical control system for a household heat pump integrated machine according to claim 1, characterized in that: The input end of the voltage module (2) is connected to a power supply, the live wire of the power supply is connected to the input end of the leakage detector, and the output end of the leakage detector is connected to the input end of the voltage module.

3. The electrical control system for a household heat pump integrated machine according to claim 2, characterized in that: The voltage module (2) is provided with a fault alarm and a fault light. When the leakage detector (201) detects that the leakage current is greater than 6 mA, the fault alarm and the fault light will sound an alarm.

4. The electrical control system for a household heat pump integrated machine according to claim 1, characterized in that: The relay output module (4) includes a compressor relay (403), an electric heating relay (402), a DC fan relay (401), an AC motor relay (404) and a four-way valve relay (405). The compressor relay is electrically connected to the compressor (6), the electric heating relay is electrically connected to the electric heater (5), the DC fan relay is electrically connected to the DC fan (411), the AC motor relay is electrically connected to the AC motor (441), and the four-way valve relay is electrically connected to the four-way valve (451) to control start and stop.

5. The electrical control system for a household heat pump integrated machine according to claim 4, characterized in that: The flow detection module (8) is connected to a flow sensor (801), and when the flow sensor detects that the water flow is between 0.5 L / min and 0.8 L / min, the compressor and the power supply are turned off.

6. The electrical control system for a household heat pump integrated machine according to claim 1, characterized in that: The temperature module (9) is connected to a coil temperature sensor (901), an ambient temperature sensor (902), an exhaust temperature sensor (903), a water tank temperature sensor (904), a return air temperature sensor (905), and an outlet air temperature sensor, and detects the coil evaporation temperature, ambient temperature, exhaust temperature, water tank temperature, return air temperature, and outlet air temperature, respectively.

7. The electrical control system for a household heat pump integrated machine according to claim 6, characterized in that: The chip program module (10) is pre-programmed with a compressor startup temperature preset value and a water tank temperature preset value, wherein the water tank temperature preset value is 15-75° C. When the water tank temperature reaches the water tank temperature preset value and the ambient temperature reaches the temperature preset value, the compressor and the DC fan are started.

Images