A gas water heater suitable for use with a variety of domestic voltages

Abstract

The utility model discloses a kind of gas water heater suitable for multiple domestic voltages, it includes shell, combustor, heat exchanger, gas control device, water control device, water-gas linkage device, fan, circuit board and wide-width power adapter, shell bottom is provided with power input terminal, wide-width power adapter is external type, wide-width power adapter is equipped with DC power output interface, power output interface is inserted in the power input terminal on shell, connecting circuit provides power for gas water heater;The wide-width power adapter is wide-width type switch transformer, its working voltage range is 100 to 240 volts AC voltage, can always maintain stable 12 volts DC power output in the environment of larger voltage fluctuation.Due to adopt such power system, the gas water heater is suitable for any numerical value between 100-240 volts voltage, can satisfy each national standard voltage, can also be connected on energy storage battery and use, use 24 to 36 volts DC motor to make that fan has good wind pressure resistance.

Description

Technical Field

[0001] This utility model relates to the field of gas water heaters, and in particular to a gas water heater applicable to various household voltages. Background Technology

[0002] Currently, gas water heaters mainly consist of a casing, burner, heat exchanger, gas control device, water control device, water-gas linkage device, control device, fan, and circuit board. When installing a gas water heater, the power cord is directly connected to a household AC power supply. Globally, standard household voltages fall into two main categories: the first uses 100V to 130V AC, classified as low voltage, primarily used in North American countries and shipboard electrical systems; the second uses 220V to 230V, classified as high voltage, primarily used in European countries, where electrical system design prioritizes efficiency. In some countries, although the standard voltage is 220V to 230V, 110V to 130V is used in different locations, indicating a mixed use of both voltages. In some remote areas, residents live far from substations, and aging power lines with high cable resistance, or a large number of households connected to the same power line with high electricity consumption, the voltage at the point of sale may drop, failing to meet standard voltage values. For example, a substation outputting 220V AC might only deliver around 200V to a residence, or a substation outputting 110V AC might only deliver around 90V. Because the power supply voltage used by residents worldwide is not standardized and the standard voltage for residential use is unstable, there is a desire for appliance manufacturers to create a gas water heater that can adapt to various voltage levels and can also be powered by an external energy storage source during power outages. Utility Model Content

[0003] The purpose of this utility model is to provide a gas water heater that is applicable to various household voltages, so as to solve the problems mentioned in the background art. This gas water heater is applicable to any voltage between 100 and 240 volts, which can meet the household standard voltage of various countries. It can also be connected to a storage battery for use. The use of a 24 to 36 volt DC motor gives the fan good wind pressure resistance.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A gas water heater suitable for multiple household voltages includes a casing, a burner, a heat exchanger, a gas control device, a water control device, a water-gas linkage device, a fan, a circuit board, and a wide-range power adapter. The bottom of the casing is provided with a power input terminal. The wide-range power adapter is an external type and is provided with a DC power output interface. The power output interface is plugged into the power input terminal on the casing and connects to the circuit to provide power to the gas water heater.

[0006] The wide-range power adapter is a wide-range switching transformer with an operating voltage range covering AC voltage from 100 to 240 volts. It can maintain a stable 12-volt DC power output in environments with large voltage fluctuations. The plug on the power adapter is configured according to the national standards used in gas water heaters, including European plug standards, American plug standards, or Chinese plug standards.

[0007] The fan includes a DC motor, a volute, and a rotor. The circuit board has a boost circuit that boosts the 12V DC power supply to 24-36V before transmitting it to the DC motor via wires. The 24V or 36V DC motor has good...

[0008] Furthermore, in order to increase the anti-interference capability of the DC power supply, an anti-interference magnetic ring is also included. The anti-interference magnetic ring is sleeved on the line of the input 12V DC power supply to filter the DC power supply and absorb electrostatic pulses.

[0009] Furthermore, an overload protector is provided on the housing, which is mounted on the bottom plate of the housing and connected in series with the input circuit of the DC power supply.

[0010] This utility model provides a gas water heater suitable for various household voltages. The gas water heater is compatible with any voltage between 100 and 240 volts and can also be connected to a storage battery. The use of a 36-volt DC motor gives the fan better wind pressure resistance. The entire gas water heater operates at 36 volts, making it safer to use and preventing electric shock accidents. When the residential power line experiences a power outage, users only need to remove the 12-volt DC output storage battery power source from their home, unplug the wide-range power adapter, and use the storage battery power source instead, achieving flexible power supply configuration for the gas water heater. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present invention.

[0012] Figure 2 This is one of the exploded perspective views of this utility model.

[0013] Figure 3 This is the second exploded perspective view of this utility model.

[0014] The diagram shows: 1. Housing; 2. Burner; 3. Heat exchanger; 4. Fan; 5. Circuit board; 11. Power input terminal; 6. Power adapter; 61. Power output interface; 7. Anti-interference magnetic ring; 8. Overload protector. Detailed Implementation

[0015] To make the technical solutions and effects of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of this utility model, and not all embodiments.

[0016] The terms "connection," "setting," and "installation" used in this utility model should be interpreted broadly. For example, "connection" can be a fixed connection, a movable connection, or a detachable connection; it can also be a mechanical connection or an electrical connection; and it can be a direct connection or an indirect connection through an intermediate medium. Unless otherwise explicitly specified and limited, those skilled in the art can understand the specific meaning of the aforementioned terms in this utility model based on the actual situation. The terms "inner," "outer," "front," "rear," "upper," "lower," "left," and "right," etc., describe the orientation or positional relationship of the device / component indicated in the drawings, and do not emphasize that the indicated component / device must have a specific orientation structure and operation, and should not be construed as a limitation on the scope of protection of this utility model. The terms "first," "second," and "third," etc., are only used to distinguish similar technical features, and should not be construed as indicating the relative importance or sequential relationship of the technical features.

[0017] like Figures 1 to 3 As shown, a gas water heater applicable to multiple household voltages is disclosed. The gas water heater includes a shell 1, a burner 2, a heat exchanger 3, a gas control device, a water control device, a water-gas linkage device, a fan 4, a circuit board 5, and a wide-range power adapter 6. The bottom of the shell 1 is provided with a power input terminal 11. The wide-range power adapter 6 is an external type and is provided with a DC 12V power output interface 61. The power output interface 61 is plugged into the power input terminal 11 on the shell and connects to the circuit to provide power to the gas water heater.

[0018] The wide-range power adapter 6 is a wide-range switching transformer with an operating voltage range covering AC voltage from 100 to 240 volts. It can maintain a stable 12-volt DC power output in environments with large voltage fluctuations, and has wide voltage adaptability and output stability.

[0019] The fan 4 includes a 36V DC motor 41, a volute 42, and a fan impeller. The circuit board 5 is equipped with a boost circuit that boosts the 12V DC voltage to 24V or 36V before outputting it to the DC motor 41 via wires. The DC motor 41 has good wind pressure resistance during operation. The entire gas water heater operates at 36V, making it safer to use and eliminating the need for the traditional 220V AC motor, thus avoiding the possibility of electric shock. When the residential power line experiences a power outage, users only need to remove the 12V DC output energy storage battery power supply from their home and unplug the wide-range power adapter output interface 61, switching to power from the energy storage battery, thus enabling flexible power supply configuration for the gas water heater.

[0020] Furthermore, in order to increase the power supply's anti-interference capability, an anti-interference magnetic ring 7 is also included. The anti-interference magnetic ring 7 is sleeved on the line of the input 12V DC power supply to filter the 12V DC and absorb electrostatic pulses, so that the water heater meets the corresponding international standards for electromagnetic compatibility and electrostatic discharge.

[0021] Furthermore, an overload protector 8 is provided on the housing, which is mounted on the bottom plate of the housing 1 and connected in series with the input circuit of the 12V DC power supply.

[0022] Although the embodiments of this utility model have shown the technical solutions, those skilled in the art can understand that the technical solutions proposed by replacing, modifying or altering these embodiments in combination with conventional technology without departing from the principles and structure of this utility model are substantially the same as those of the utility model.

Claims

1. A gas water heater suitable for various household voltages, characterized in that: The gas water heater includes a shell, burner, heat exchanger, gas control device, water control device, water-gas linkage device, fan, circuit board and wide-range power adapter. The bottom of the shell is provided with a power input terminal. The wide-range power adapter is an external type and is provided with a DC power output interface. The power output interface is plugged into the power input terminal on the shell and connects to the circuit to provide power to the gas water heater. The wide-range power adapter is a wide-range switching transformer with an operating voltage range of 100 to 240 volts AC, which can maintain a stable 12 volt DC power output in environments with large voltage fluctuations.

2. A gas water heater applicable to multiple household voltages according to claim 1, characterized in that: The fan includes a DC motor, a volute, and a wind turbine. The circuit board is equipped with a boost circuit that boosts the 12V DC power supply to 24-36V and then transmits it to the DC motor through wires.

3. A gas water heater applicable to multiple household voltages according to claim 2, characterized in that: It also includes an anti-interference magnetic ring, which is sleeved on the line of the input 12V DC power supply to filter the DC power supply and absorb electrostatic pulses.

4. A gas water heater applicable to multiple household voltages according to claim 3, characterized in that: An overload protector is installed on the housing, which is located on the bottom plate of the housing and connected in series with the input circuit of the DC power supply.

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