Vehicle-mounted gas water heater

Abstract

The utility model discloses a vehicle-mounted gas water heater. The vehicle-mounted gas water heater comprises a shell, a gas inlet assembly, a combustion assembly and a flow dividing assembly. The combustion assembly is provided with a plurality of gas channels, the flow dividing assembly comprises a flow dividing pipe and a switch valve, the flow dividing pipe is arranged on one side of the combustion assembly, a gas inlet is formed in one end of the flow dividing pipe, the other end of the flow dividing pipe is closed, the gas inlet is connected with the gas inlet assembly, and a gas inlet channel communicated with the gas inlet is formed in the flow dividing pipe and comprises a first gas chamber and a second gas chamber. Nozzles are arranged on the first gas chamber and the second gas chamber respectively, the gas channel is communicated with the nozzles, the switch valve is arranged between the first gas chamber and the second gas chamber, when the switch valve is opened, the first gas chamber and the second gas chamber are opened at the same time, and the multiple nozzles supply gas for combustion synchronously. When the switch valve is closed to cut off the second air chamber, only the first air chamber maintains air supply, the number of nozzles participating in work is reduced, the minimum fire power is reduced, and complex adjusting operation is not needed.

Description

A vehicle-mounted gas water heater Technical Field

[0001] This utility model relates to the field of RV equipment technology, and in particular to a vehicle-mounted gas water heater. Background Technology

[0002] Traditional water heaters suffer from several problems when it comes to rapidly supplying hot water. Firstly, in scenarios requiring large amounts of hot water, limitations in the gas supply system design make it difficult to simultaneously and rapidly supply gas from multiple nozzles, leading to delayed hot water supply and failing to meet users' needs for quick showering or hot water use. Secondly, in terms of water temperature regulation, traditional water heaters typically require complex adjustment devices, such as adjusting a proportional valve to control the gas flow. While this allows for adjustment of the flame intensity, the combustion effect is not ideal, and reducing the flame intensity can easily result in unstable water temperature and fluctuating hot and cold water, leading to a poor user experience. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art.

[0004] This application provides a vehicle-mounted gas water heater, comprising a housing, an air intake assembly, a combustion assembly, and a flow distribution assembly. The air intake assembly is disposed within the housing. The combustion assembly is disposed within the housing and has multiple gas passages. The flow distribution assembly includes a flow distribution pipe and a switching valve. The flow distribution pipe is disposed on one side of the combustion assembly, with an air inlet at one end and a closed end. The air inlet is connected to the air intake assembly. The flow distribution pipe contains a first gas chamber and a second gas chamber communicating with the air inlet. Each of the first and second gas chambers has at least one nozzle, and each nozzle communicates with one of the gas passages. The switching valve is disposed between the first and second gas chambers and is used to control the on / off state of the first and second gas chambers.

[0005] The vehicle-mounted gas water heater provided in this application has at least the following beneficial effects: by having a diversion component, when the switch valve is opened, the first gas chamber and the second gas chamber open simultaneously, and multiple nozzles supply gas and burn synchronously, which can quickly supply hot water; when the switch valve is closed to isolate the second gas chamber, only the first gas chamber maintains gas supply, reducing the number of nozzles involved in the operation, thereby reducing the minimum firepower, eliminating the need for complex adjustment operations, and quickly meeting the water temperature requirements.

[0006] According to some technical solutions of this application, the first air chamber and the second air chamber are connected and separated by a partition, and the switching valve is connected to the partition.

[0007] According to some technical solutions of this application, the switching valve includes a valve seat, a valve stem, a spring, and a stop block. One end of the valve stem is movably connected to the valve seat, and the other end of the valve stem is fixed to the stop block. The spring is sleeved on the valve stem and one end abuts against the stop block. A vent is provided between the partition and the second air chamber. The position of the stop block corresponds to the vent, so as to control the opening and closing of the first air chamber and the second air chamber.

[0008] According to some technical solutions of this application, the switching valve is a solenoid valve.

[0009] According to some technical solutions of this application, a connecting pipe is provided at one end of the diverter pipe near the air inlet, and the connecting pipe is provided with external threads.

[0010] According to some technical solutions of this application, the flow splitting component further includes a proportional valve, which is disposed between the air intake component and the air intake port via a pipeline.

[0011] According to some technical solutions of this application, the combustion assembly includes a burner housing, a plurality of gas passages are disposed inside the burner housing, and a burner is provided inside the gas passages.

[0012] According to some technical solutions of this application, a folded portion is provided on one side of the diverter tube, and a connection hole is provided on the folded portion. The folded portion is used to be fixedly connected to the burner housing.

[0013] According to some technical solutions of this application, the nozzle is provided in multiple ways, and the multiple nozzles are spaced apart along the length direction of the diversion pipe.

[0014] According to some technical solutions of this application, the bottom of the diversion pipe is provided with a connecting seat, which is used to fix it to the housing.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 is a three-dimensional structural diagram of the vehicle-mounted gas water heater provided in an embodiment of this application;

[0018] Figure 2 is a schematic diagram of the internal structure of the vehicle-mounted gas water heater provided in the embodiment of this application;

[0019] Figure 3 is a partially enlarged structural schematic diagram of Figure 2;

[0020] Figure 4 is a three-dimensional structural schematic diagram of the shunt assembly provided in the embodiment of this application;

[0021] Figure 5 is a partial cross-sectional structural diagram of the shunt assembly provided in the embodiment of this application;

[0022] Figure 6 is a schematic diagram of the connection structure of the shunt tube provided in the embodiment of this application.

[0023] In the attached diagram: 100-Housing; 200-Intake assembly; 300-Combustion assembly; 400-Bifurcation assembly; 310-Gas passage; 320-Burner housing; 330-Burner; 410-Bifurcation pipe; 420-Switch valve; 430-Baffle plate; 440-Connecting pipe; 450-Folding part; 460-Connecting seat; 411-Intake port; 412-First gas chamber; 413-Second gas chamber; 414-Nozzle; 415-Ventilation port; 421-Valve seat; 422-Valve stem; 423-Spring; 424-Stop block; 451-Connecting hole. Detailed Implementation

[0024] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0025] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Regarding directional descriptions, such as "up," "down," "front," "back," "left," and "right," the directions or positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this application. In the description of this utility model, unless otherwise expressly limited, terms such as "set," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] The embodiments of this application will be described below with reference to Figures 1 to 6.

[0027] This application provides a vehicle-mounted gas water heater, which includes a housing 100, an air intake assembly 200, a combustion assembly 300, and a flow distribution assembly 400.

[0028] An intake assembly 200 is disposed within a housing 100, and a combustion assembly 300 is disposed within a housing 100. The combustion assembly 300 has multiple gas passages 310. A flow divider assembly 400 includes a flow divider pipe 410 and a switching valve 420. The flow divider pipe 410 is disposed on one side of the combustion assembly 300. One end of the flow divider pipe 410 is provided with an air inlet 411, and the other end is closed. The air inlet 411 is connected to the intake assembly 200. The flow divider pipe 410 is provided with a first gas chamber 412 and a second gas chamber 413 that communicate with the air inlet 411. At least one nozzle 414 is provided on the first gas chamber 412 and the second gas chamber 413 respectively. Each nozzle communicates with one of the gas passages 310. The switching valve 420 is disposed between the first gas chamber 412 and the second gas chamber 413 and is used to control the opening and closing of the first gas chamber 412 and the second gas chamber 413.

[0029] In actual use, the gas flows from the intake assembly 200 into the intake port 411 of the diversion pipe 410, and enters the corresponding gas chamber according to the opening and closing state of the switch valve 420. Then, it enters the gas passage 310 of the combustion assembly 300 through the nozzle 414, mixes with air and burns to heat the water.

[0030] For example, the first air chamber 412 is provided with two nozzles 414, and the second air chamber 413 is provided with three nozzles 414. When the switch valve 420 is closed, the first air chamber 412 is supplied with air, and only two nozzles 414 are working, which can reduce the minimum heat output. When the user has a high demand for hot water, the switch valve 420 is opened, and the first and second air chambers 413 are supplied with air simultaneously, switching to the operation of all five nozzles 414. The multiple nozzles 414 supplying air can quickly heat the water and improve the hot water production efficiency.

[0031] Therefore, by incorporating the diversion component 400, when the switch valve 420 is opened, the first gas chamber 412 and the second gas chamber 413 open simultaneously, and multiple nozzles 414 supply gas and combustion synchronously, enabling rapid supply of hot water. When the switch valve 420 is closed to isolate the second gas chamber 413, only the first gas chamber 412 maintains gas supply, reducing the number of nozzles 414 involved in operation, thereby reducing the minimum heat output. This eliminates the need for complex adjustments and quickly meets water temperature requirements. In summer, the temperature can be adjusted to maintain a constant hot water temperature, preventing rapid scalding or sudden temperature fluctuations, ensuring temperature stability and user comfort. Conversely, in winter when temperatures are low, maximum heat output can be used to deliver higher-temperature hot water.

[0032] In some embodiments, the first gas chamber 412 and the second gas chamber 413 are connected and separated by a partition 430. That is, the diverter pipe 410 is divided into the first gas chamber 412 and the second gas chamber 413 by the partition 430, and the switching valve 420 is connected to the partition 430. The partition 430 prevents the two gas chambers from interfering with each other, facilitating control of the gas chambers and achieving precise firepower adjustment. When the switching valve 420 is closed, the valve port is closed, preventing gas from flowing into the second gas chamber 413.

[0033] In some embodiments, the switching valve 420 includes a valve seat 421, a valve stem 422, a spring 423, and a stop block 424. One end of the valve stem 422 is movably connected to the valve seat 421, that is, one end is located inside the valve seat 421 and extends outward along the valve seat 421. The other end of the valve stem 422 is fixed to the stop block 424. The spring 423 is sleeved on the valve stem 422 and located between the valve seat 421 and the stop block 424, with one end of the spring abutting against the stop block 424. A vent 415 is provided between the partition 430 and the second air chamber 413. The position of the stop block 424 corresponds to that of the vent 415 to control the opening and closing of the first air chamber 412 and the second air chamber 413.

[0034] When it is necessary to open the second gas chamber 413, the valve stem 422 is pushed to overcome the spring force to control the movement of the stop block 424, so that the stop block 424 moves away from the vent 415, and the gas enters the second gas chamber 413 from the first gas chamber 412 through the vent 415; when it is not necessary to open the second gas chamber 413, the valve stem 422 is released, the spring 423 pushes the stop block 424 to reset, so as to close the vent 415, and the spring 423 can also press the stop block 424 against the vent.

[0035] Optionally, the switching valve 420 can be a solenoid valve. Solenoid valves have a faster response speed. By changing the magnitude of the electromagnetic force inside the solenoid valve through the controller, the valve can be opened and closed, thereby controlling the flow of gas between the two gas chambers. This allows for precise control of the valve to control the gas flow and meets the user's need for convenient operation. The solenoid valve can use an existing solenoid valve structure, and the specific principle will not be elaborated here.

[0036] In some embodiments, a connecting pipe 440 is provided at one end of the diverter pipe 410 near the air inlet 411, and the connecting pipe 440 is provided with external threads. During installation, the internal thread of the air intake assembly 200 pipe interface is screwed to the corresponding external thread interface of the connecting pipe 440, which is convenient for installation or replacement, can improve the sealing of the connection, and effectively prevent gas leakage.

[0037] In some embodiments, the combustion assembly 300 includes a burner housing 320, a plurality of gas passages 310 are disposed within the burner housing 320, and a burner 330 is provided within the gas passages 310, so that gas can be delivered from the gas passages 310 to the burner 330, ensuring efficient combustion of gas.

[0038] In some embodiments, the diversion assembly 400 further includes a proportional valve, which is connected between the air inlet pipe and the air inlet 411 via a pipeline. By providing the proportional valve, in actual configuration, the proportional valve is electrically connected to the controller to adjust the supply voltage of the proportional valve when the temperature is too low, thereby changing the gas flow rate and increasing the combustion volume to meet the required outlet water temperature. When the outlet water temperature still does not reach the set temperature, the controller controls the valve stem 422 of the solenoid valve on the diversion unit to lift, connecting the first gas chamber 412 and the second gas chamber 413, and supplying gas to both gas chambers together so that the burner shroud 330 in the burner housing 320 is fully combusted.

[0039] Considering that using only simple pipes or bonding methods for connection, the connection between the diversion pipe 410 and the burner housing 320 is prone to problems such as loose connection and positional displacement, which affects the normal operation of the water heater. Therefore, in some embodiments, a folded part 450 is provided on one side of the diversion pipe 410, and a connection hole 451 is provided on the folded part 450. The folded part 450 is used to fix the connection with the burner housing 320.

[0040] For example, by passing the bolt through the connection hole 451 of the folded part 450 of the diverter pipe 410 and tightening it with the corresponding screw hole on the burner housing 320, the two can be connected and fixed, ensuring that the gas smoothly enters the gas passage 310 from the nozzle 414, avoiding gas leakage caused by misalignment or offset, and improving the stability during heating.

[0041] In some embodiments, the distributor has multiple nozzles 414, which are spaced apart along the length of the distributor pipe 410. Therefore, by increasing the number of nozzles, it is possible to achieve more precise and rapid dynamic adjustment and switching of firepower, thereby improving the utilization rate of gas.

[0042] In actual use, vehicle vibrations can easily cause damage to components or loosening of connections, affecting the performance and safety of the water heater. Therefore, in some embodiments, a connector 460 is provided at the bottom of the diversion pipe 410, which is used to fix it to the housing 100.

[0043] During assembly, screws or other fasteners are used to secure the connector 460 to the housing 100 to prevent the splitter pipe 410 from shifting due to vibration during vehicle operation, thus maintaining the relative position of the connector 460 and the housing 100. This also secures the splitter assembly 400 within the housing 100 and reduces the impact of bumps during driving on the splitter assembly 400.

[0044] Furthermore, certain terms in this specification have been used to describe embodiments of this specification. For example, "an embodiment," "an embodiment," and / or "some embodiments" mean that a particular feature, structure, or characteristic described in connection with that embodiment may be included in at least one embodiment of this specification. Therefore, it is to be emphasized and understood that two or more references to "an embodiment" or "an embodiment" in various parts of this specification do not necessarily refer to the same embodiment. Moreover, specific features, structures, or characteristics may be appropriately combined in one or more embodiments of this specification.

[0045] The preferred embodiments of this application have been described in detail above, but this application is not limited to the embodiments described. Without departing from the spirit and scope of this specification, those skilled in the art can make equivalent modifications or alternative configurations based on the embodiments in this specification to implement the application in this specification. These equivalent modifications or alternatives are all included within the scope defined by the claims of this application.

Claims

1. A vehicle-mounted gas water heater, characterized in that: include: Housing (100); intake assembly (200) disposed within the housing (100); combustion assembly (300) disposed within the housing (100), the combustion assembly (300) having multiple gas passages (310); flow divider assembly (400) including a flow divider pipe (410) and a switching valve (420), one end of the flow divider pipe (410) having an air inlet (411), and the other end being closed, the air inlet (411) being connected to the intake assembly (200), the flow divider... The flow pipe (410) is provided with a first air chamber (412) and a second air chamber (413) that are connected to the air inlet (411). At least one nozzle (414) is provided on the first air chamber (412) and the second air chamber (413). Each nozzle is connected to one of the gas passages (310). The switching valve (420) is located between the first air chamber (412) and the second air chamber (413) and is used to control the opening and closing of the first air chamber (412) and the second air chamber (413).

2. The vehicle-mounted gas water heater according to claim 1, characterized in that: The first air chamber (412) and the second air chamber (413) are connected and separated by a partition (430), and the switching valve (420) is connected to the partition (430).

3. The vehicle-mounted gas water heater according to claim 2, characterized in that: The switching valve (420) includes a valve seat (421), a valve stem (422), a spring (423), and a stop (424). One end of the valve stem (422) is movably connected to the valve seat (421), and the other end of the valve stem (422) is fixed to the stop (424). The spring (423) is sleeved on the valve stem (422) and one end abuts against the stop (424). A vent (415) is provided between the partition (430) and the second air chamber (413). The position of the stop (424) corresponds to that of the vent (415) to control the opening and closing of the first air chamber (412) and the second air chamber (413).

4. The vehicle-mounted gas water heater according to claim 3, characterized in that: The switching valve (420) is a solenoid valve.

5. The vehicle-mounted gas water heater according to claim 1, characterized in that: The splitter pipe (410) is provided with a connecting pipe (440) at one end near the air inlet (411), and the connecting pipe (440) is provided with external threads.

6. The vehicle-mounted gas water heater according to claim 1, characterized in that: The flow splitter assembly (400) also includes a proportional valve, which is located between the intake assembly (200) and the intake port (411) via a pipeline.

7. The vehicle-mounted gas water heater according to claim 1, characterized in that: The combustion assembly (300) includes a burner housing (320), a plurality of gas passages (310) are disposed within the burner housing (320), and a burner vent (330) is provided within the gas passages (310).

8. The vehicle-mounted gas water heater according to claim 7, characterized in that: The diverter pipe (410) has a folded part (450) on one side, and the folded part (450) has a connecting hole (451) for fixed connection with the burner housing (320).

9. The vehicle-mounted gas water heater according to claim 1, characterized in that: The nozzle (414) is provided in multiple ways, and the multiple nozzles (414) are spaced apart along the length direction of the diversion pipe (410).

10. The vehicle-mounted gas water heater according to claim 1, characterized in that: The bottom of the diversion pipe (410) is provided with a connecting seat (460), which is used to fix it to the housing.

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