Ultra-low-voltage gas heating water heater

Abstract

An ultra-low-voltage gas heating water heater comprises a shell, a main controller and an electric device, the main controller and the electric device are arranged in the shell, the main controller is electrically connected with the electric device, the ultra-low-voltage gas heating water heater further comprises a power adapter, the input end of the power adapter is connected with a mains supply, and the output end of the power adapter is connected with the main controller; a power module and a logic control module are arranged in the main controller, the output end of the power adapter is connected with the power module, the power module is electrically connected with the logic control module, and the logic control module is electrically connected with the electric device. According to the gas heating water heater, the power adapter is arranged and converts the high-voltage mains supply into the voltage lower than 36 V, so that the voltage input by equipment and the working voltage of parts are safe voltages, and therefore compared with a traditional gas heating water heater, the situation that people are hurt due to electric leakage does not exist, the safety coefficient of the machine is improved, and the service life of the gas heating water heater is prolonged. And the machine body does not need to be provided with a grounding device, so that the installation of the gas heating water heater is simpler.

Description

Technical Field

[0001] The utility model relates to the technical field of heating furnaces, and particularly relates to a gas heating and hot water furnace with extremely low voltage. Background Art

[0002] Existing gas heating and hot water furnaces all heat the water flowing through the appliance by burning gas to release heat to achieve the purpose of preparing hot water, but they cannot do without the assistance of electricity; at present, the domestic mains voltage is AC220V, which is much higher than the human body safety voltage of 36V, and there is a certain risk of electric leakage, which is likely to cause harm to the human body and other living bodies in the surrounding environment; in addition, good grounding measures are required when installing the gas heating and hot water furnace.

[0003] Therefore, it is necessary to make further improvements. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a gas heating and hot water furnace with extremely low voltage, which has a simple structure, low voltage, is safe and reliable, does not require grounding measures, and has strong practicability, so as to overcome the deficiencies of the prior art.

[0005] A gas heating and hot water furnace with extremely low voltage designed according to this purpose includes a housing, a main controller and electrical components arranged in the housing. The main controller is electrically connected to the electrical components. It is characterized in that: it further includes a power adapter. The input end of the power adapter is connected to the mains, and the output end of the power adapter is connected to the main controller.

[0006] A power module and a logic control module are arranged in the main controller. The output end of the power adapter is connected to the power module, the power module is electrically connected to the logic control module, and the logic control module is electrically connected to the electrical components.

[0007] It further includes a human-machine interface, and the logic control module is electrically connected to the human-machine interface.

[0008] The electrical components include a circulation water pump. A heat exchanger is arranged in the housing. The circulation water pump is connected to the heat exchanger, and the logic control module is electrically connected to the circulation water pump.

[0009] The electrical components further include a water flow sensor. A water inlet pipe is arranged on the housing. The water inlet pipe is connected to the circulation water pump, and the water flow sensor is arranged on the water inlet pipe. The logic control module is electrically connected to the water flow sensor.

[0010] The electrical components further include a temperature controller. A water outlet pipe is arranged on the housing. The heat exchanger is connected to the water outlet pipe, and the temperature controller is arranged on the water outlet pipe. The logic control module is electrically connected to the temperature controller.

[0011] The electrical component further includes a gas proportional valve. A burner and a combustion chamber are arranged inside the housing. The gas proportional valve is connected to the burner. The combustion chamber is located above the burner, and the heat exchanger is located above the combustion chamber. The logic control module is electrically connected to the gas proportional valve.

[0012] The electrical component further includes a blower and a wind pressure switch. The blower is arranged above the heat exchanger, and the wind pressure switch is arranged on one side of the blower. The logic control module is electrically connected to the blower and the wind pressure switch respectively.

[0013] The electrical component further includes a temperature sensor. The temperature sensor is respectively arranged on the water inlet pipe and the water outlet pipe. The logic control module is electrically connected to the temperature sensor.

[0014] The output voltage of the output end of the power adapter ≤ 36V.

[0015] By arranging a power adapter in the gas heating and hot water boiler of the present utility model, the power adapter converts high-voltage mains electricity into a voltage lower than 36V, so that the input voltage of the device and the working voltage of the components are both safe voltages. Therefore, compared with the traditional gas heating and hot water boiler, there is no situation of electric shock and injury to people, the safety factor of the machine is improved, and the body does not need to be installed with a grounding device, thus making the installation of the gas heating and hot water boiler simpler. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the internal structure of the gas heating and hot water boiler in an embodiment of the present utility model.

[0017] Figure 2 It is a schematic diagram of the principle of the gas heating and hot water boiler in an embodiment of the present utility model. Detailed Embodiments

[0018] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0019] See Figure 1 - Figure 2 , this extra-low voltage gas heating and hot water boiler includes a housing 1, a main controller 2 and electrical components arranged inside the housing 1. The main controller 2 is electrically connected to the electrical components. It further includes a power adapter 3. The power adapter 3 is arranged outside the housing 1. The input end 4 of the power adapter 3 is connected to the mains electricity (220V~50Hz). The output end 5 of the power adapter 3 is connected to the main controller 2. The output voltage of the output end 5 of the power adapter 3 ≤ DC36V, and is input into the main controller 2 through the power adapter 3 connection line; the mains electricity passes through the power adapter 3, the power output voltage ≤ DC36V, and the working voltage of all electrical components ≤ DC36V, realizing working with safe voltage, using extra-low safe voltage, and solving the problem of electrical safety.

[0020] The main controller 2 is provided with a power module 6 and a logic control module (PLC) 7. The output end 5 of the power adapter 3 is connected to the power module 6. The power module 6 is electrically connected to the logic control module 7, and the logic control module 7 is electrically connected to the electrical components. The power module 6 is a power management module and can Function of regulating and stabilizing the output power supply voltage.

[0021] It further includes a human-machine interface 8. The logic control module 7 is electrically connected to the human-machine interface 8. A display screen is provided on the housing 1, and the human-machine interface 8 is arranged on the display screen.

[0022] The electrical components include a circulation water pump 9. A heat exchanger 10 is arranged in the housing 1. The circulation water pump 9 is connected to the heat exchanger 10, and the logic control module 7 is electrically connected to the circulation water pump 9.

[0023] The electrical components further include a water flow sensor 11. A water inlet pipe is provided on the housing 1. The water inlet pipe is connected to the circulation water pump 9, and the water flow sensor 11 is arranged on the water inlet pipe. The logic control module 7 is electrically connected to the water flow sensor 11. The water flow sensor 11 is used to detect the water inlet flow rate to avoid the problem of dry burning.

[0024] The electrical components further include a thermostat 15. A water outlet pipe is provided on the housing 1. The heat exchanger 10 is connected to the water outlet pipe, and the thermostat 15 is arranged on the water outlet pipe. The logic control module 7 is electrically connected to the thermostat 15.

[0025] The electrical components further include a gas proportional valve 12. A burner 13 and a combustion chamber 14 are arranged in the housing 1. The gas proportional valve 12 is connected to the burner 13. The combustion chamber 14 is located above the burner 13, and the heat exchanger 10 is located above the combustion chamber 14. The logic control module 7 is electrically connected to the gas proportional valve 12.

[0026] The electrical components further include a blower 16 and a wind pressure switch 17. The blower 16 is arranged above the heat exchanger 10, and the wind pressure switch 17 is arranged on one side of the blower 16. The logic control module 7 is electrically connected to the blower 16 and the wind pressure switch 17 respectively.

[0027] The electrical components further include a temperature sensor 18. The temperature sensor 18 is respectively arranged on the water inlet pipe and the water outlet pipe. The logic control module 7 is electrically connected to the temperature sensor 18. The temperature sensor 18 is used to detect the water inlet temperature and the water outlet temperature and feedback the detected temperature to the logic control module 7. When there is a difference between the water outlet temperature and the set temperature, the logic control module 7 controls the fire power of the burner 13 or the flow rate of the circulation water pump 9 to adjust the water outlet temperature.

[0028] The main controller 2 is provided with an igniter 19. When igniting, the high-voltage electric spark released by the igniter 19 has an extremely small current and is consumed by the counter-discharge, and will not harm people. A switching solenoid valve 20 is arranged in the housing 1. The switching solenoid valve 20 can control the flow of hot water by controlling the opening and closing of the valve core, thereby controlling the heating effect.

[0029] Through the human-machine interface 8, the machine can be switched on and off, set, and the operation of the water flow sensor 11, the blower 16, the circulation water pump 9, the igniter 19, the gas proportional valve 12, the switching solenoid valve 20, the thermostat 15 and the temperature sensor 18 can be controlled and adjusted; in a low-voltage environment, the demands for continuous heating and domestic hot water are realized.

[0030] The above is the preferred solution of the present utility model, which shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An extra-low voltage gas-fired heating water heater, comprising a housing (1), and a main controller (2) and electrical components arranged in the housing (1), wherein the main controller (2) is electrically connected to the electrical components, and characterized in that: It also includes a power adapter (3), wherein an input end (4) of the power adapter (3) is connected to the mains, and an output end (5) of the power adapter (3) is connected to the main controller (2).

2. The extra-low voltage gas-fired heating water heater according to claim 1, characterized in that: A power module (6) and a logic control module (7) are provided in the main controller (2); the output end (5) of the power adapter (3) is connected to the power module (6); the power module (6) is electrically connected to the logic control module (7); and the logic control module (7) is electrically connected to the electrical device.

3. The extra-low voltage gas-fired heating water heater according to claim 2, characterized in that: It also includes a human-machine interaction interface (8), and the logic control module (7) is electrically connected to the human-machine interaction interface (8).

4. The extra-low voltage gas-fired heating water heater according to claim 3, characterized in that: The electrical device comprises a circulating water pump (9); a heat exchanger (10) is arranged in the housing (1); the circulating water pump (9) is connected to the heat exchanger (10); and the logic control module (7) is electrically connected to the circulating water pump (9).

5. The extra-low voltage gas-fired heating water heater according to claim 4, characterized in that: The electrical device also includes a water flow sensor (11); a water inlet pipe is provided on the housing (1); the water inlet pipe is connected to a circulating water pump (9); the water flow sensor (11) is provided on the water inlet pipe; and the logic control module (7) is electrically connected to the water flow sensor (11).

6. The extra-low voltage gas-fired heating water heater according to claim 5, characterized in that: The electrical device further comprises a temperature controller (15); a water outlet pipe is provided on the housing (1); the heat exchanger (10) is connected to the water outlet pipe; the temperature controller (15) is provided on the water outlet pipe; and the logic control module (7) is electrically connected to the temperature controller (15).

7. The extra-low voltage gas-fired hot water heater according to claim 4, characterized in that: The electrical device further comprises a gas proportional valve (12); a burner (13) and a combustion chamber (14) are arranged in the housing (1); the gas proportional valve (12) is connected to the burner (13); the combustion chamber (14) is located above the burner (13); the heat exchanger (10) is located above the combustion chamber (14); and the logic control module (7) is electrically connected to the gas proportional valve (12).

8. The extra-low voltage gas-fired heating water heater according to claim 4, characterized in that: The electrical device further comprises a fan (16) and a wind pressure switch (17); the fan (16) is arranged above the heat exchanger (10); the wind pressure switch (17) is arranged on one side of the fan (16); and the logic control module (7) is electrically connected to the fan (16) and the wind pressure switch (17), respectively.

9. The extra-low voltage gas-fired heating water heater according to claim 6, characterized in that: The electrical device also includes a temperature sensor (18), which is arranged on the water inlet pipe and the water outlet pipe respectively, and the logic control module (7) is electrically connected to the temperature sensor (18).

10. The extra-low voltage gas-fired hot water heater according to any one of claims 1 to 9, characterized in that: The output voltage of the output terminal (5) of the power adapter (3) is ≤36V.

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