Vehicle-mounted water heater

Abstract

The utility model discloses a vehicle-mounted water heater which comprises a shell, a fan assembly and a check valve, an installation cavity is formed in the shell, the fan assembly is arranged in the installation cavity, and the fan assembly is provided with an air outlet; the check valve comprises a frame body, a stop plate and a connecting piece, one end part of the frame body is connected with the air outlet, a through accommodating cavity is formed in the frame body, the stop plate and the connecting piece are arranged in the accommodating cavity, and the stop plate is rotatably connected with the frame body through the connecting piece so as to shield the accommodating cavity or enable the accommodating cavity to be communicated during rotation; the airflow pushes the baffle plate to rotate around the connecting piece to be close to the inner wall of the frame body, the accommodating cavity is through, and the air is smoothly exhausted; and when the fan stops working, the stop plate rotates under the action of self gravity or external airflow to shield the accommodating cavity, so that external backward flowing wind, dust and rainwater are prevented from entering.

Description

Technical Field

[0001] This application relates to the field of water heaters, and in particular to a vehicle-mounted water heater. Background Technology

[0002] Car water heaters provide a stable and comfortable hot water supply for outdoor travel, greatly enhancing the travel experience. Currently, car water heaters often have anti-backflow components at the air outlet, which effectively reduce backflow without obstructing normal gas discharge. However, in actual use, the wind deflector cannot close completely, and the anti-backflow component and fan assembly do not fit tightly enough. The connection lacks a robust fixing structure, allowing air to still enter at the component's edges, and rainwater can also enter with the wind, damaging internal circuit components and affecting the device's lifespan. Furthermore, the limited space in a car environment strictly limits the device's size, making it impossible to simply increase the size of the anti-backflow component to improve the anti-backflow effect. Utility Model Content

[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 water heater, which includes a housing, a fan assembly, and a check valve. The housing has an installation cavity; the fan assembly is disposed within the installation cavity and has an air outlet; the check valve includes a frame, a stop plate, and a connector. One end of the frame is connected to the air outlet, and the frame has a through-hole receiving cavity. The stop plate and the connector are disposed within the receiving cavity. The stop plate is rotatably connected to the frame via the connector, so as to block the receiving cavity or allow the receiving cavity to pass through during rotation.

[0005] The vehicle-mounted water heater provided in this application has at least the following beneficial effects: when the fan assembly is working and blowing air, the airflow pushes the baffle to rotate around the connector, so that it is close to the inner wall of the frame, the accommodating cavity is open, and the gas is discharged smoothly; when the fan stops working, the baffle rotates under its own gravity or the action of external airflow, blocking the accommodating cavity, thereby preventing external backflow, dust and rainwater from entering.

[0006] In some embodiments, the frame includes a first connecting portion, a second connecting portion, and a third connecting portion. The first connecting portion is connected to the third connecting portion through the second connecting portion. The first connecting portion, the second connecting portion, and the third connecting portion are cylindrical. The stop plate and the connector are disposed inside the second connecting portion.

[0007] In some embodiments, the diameter of the second connecting portion is larger than the diameters of the first connecting portion and the third connecting portion.

[0008] In some embodiments, a fastener is also included. The outer side of the third connecting portion is provided with a plurality of first connecting holes spaced apart along the circumference, and the outer side of the air outlet is provided with a corresponding second connecting hole. The first connecting holes and the second connecting holes are connected by the fastener to fix the frame to the fan assembly by means of the fastener.

[0009] In some embodiments, the end of the third connecting portion extends inward toward the second connecting portion, and a vent is provided on the extended end of the third connecting portion, and the stop plate is installed on the vent.

[0010] In some embodiments, the connector is a rotating shaft, which is disposed within the accommodating cavity and rotatably connected to the stop plate.

[0011] In some embodiments, the connector is a hinge, which is disposed within the accommodating cavity and rotatably connected to the stop plate.

[0012] In some embodiments, a mesh screen is provided at one end of the frame away from the fan assembly, and the mesh screen has mesh-like openings.

[0013] In some embodiments, there are multiple openings, each of which is arc-shaped.

[0014] In some embodiments, both the valve body and the stop plate are made of stainless steel.

[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 A perspective structural diagram of a water heater provided in an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the internal structure of a water heater provided in an embodiment of this application;

[0019] Figure 3 This is a side view of the water heater provided in an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the connection structure of the check valve provided in the embodiments of this application;

[0021] Figure 5 A three-dimensional structural diagram of the check valve provided in an embodiment of this application;

[0022] Figure 6 This is a schematic diagram of the internal structure of the check valve provided in an embodiment of this application.

[0023] In the attached drawings: 100-shell; 200-fan assembly; 300-check valve; 310-frame; 320-stop plate; 330-connector; 340-partition; 301-accommodating cavity; 311-first connecting part; 312-second connecting part; 313-third connecting part; 314-first connecting hole; 201-air outlet; 202-second 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 following is combined with Figures 1 to 6 The embodiments of this application are described below.

[0027] Based on the above, this application provides a vehicle-mounted water heater, which includes a housing 100, a fan assembly 200, and a check valve 300.

[0028] The housing 100 has an installation cavity, and the fan assembly 200 is located in the installation cavity. The fan assembly 200 has an air outlet 201. The fan assembly 200 can draw away excess heat and exhaust gas in the main body of the water heater through the air outlet 201 and discharge it to the outside.

[0029] The check valve 300 includes a frame 310, a stop plate 320, and a connector 330. One end of the frame 310 is connected to the air outlet 201. The frame 310 has a through-hole accommodating cavity 301. The stop plate 320 and the connector 330 are disposed in the accommodating cavity 301. The stop plate 320 is rotatably connected to the frame 310 through the connector 330 so as to block the accommodating cavity 301 or allow the accommodating cavity 301 to pass through when rotating.

[0030] Optionally, the connector 330 is a rotating shaft, which is disposed within the accommodating cavity 301 and rotatably connected to the stop plate 320. In this way, when there is airflow, the stop plate 320 rotates around the rotating shaft, changing its position; when the airflow disappears or reverses, the stop plate 320 rotates back to its original position around the rotating shaft under its own weight or other external forces.

[0031] Alternatively, the connector 330 can be a hinge, which is disposed within the accommodating cavity 301 and rotatably connected to the stop plate 320. Similar to a pivot, when airflow is present, the stop plate 320 rotates around the pivot via the hinge; when the airflow disappears or reverses, the stop plate 320 rotates back around the hinge under the action of gravity or other external forces. This ensures that the stop plate 320 can rotate flexibly while providing corresponding support.

[0032] When the fan assembly 200 operates and discharges air, the airflow pushes the baffle 320 to rotate around the connector 330, bringing it close to the inner wall of the frame 310, thus opening the accommodating cavity 301 and allowing gas to escape smoothly. When the fan stops operating, the baffle 320 rotates under its own weight or the action of external airflow, blocking the accommodating cavity 301 and preventing backflow of external air, dust, and rainwater. Therefore, its position can be changed according to the direction and state of the airflow to block or open the accommodating cavity 301, thereby achieving the purpose of ventilation and backflow prevention, effectively protecting the internal electronic components of the water heater.

[0033] In some embodiments, the frame 310 includes a first connecting portion 311, a second connecting portion 312, and a third connecting portion 313. The first connecting portion 311 is connected to the third connecting portion 313 via the second connecting portion 312. The first connecting portion 311, the second connecting portion 312, and the third connecting portion 313 are cylindrical. The cylindrical connecting portions reduce airflow resistance and turbulence, allowing the gas to flow more smoothly. The baffle 320 and the connector 330 are disposed within the second connecting portion 312, thereby providing suitable installation space for the baffle 320 and the connector 330. In use, gas enters the third connecting portion 313 from the outlet 201 of the fan assembly 200. When passing through the second connecting portion 312, it pushes the baffle 320 to rotate, and then exits through the first connecting portion 311.

[0034] Optionally, the diameter of the second connecting portion 312 is larger than the diameter of any other connecting portion, that is, the diameter of the second connecting portion 312 is larger than the diameters of the first connecting portion 311 and the third connecting portion 313. When the stop plate 320 is installed on the second connecting portion 312, and the fan pushes the stop plate 320 to rotate, the larger diameter of the second connecting portion 312 provides more space for the rotation of the stop plate 320. This allows the stop plate 320 to more freely approach the inner wall of the frame 310, achieving passage through the accommodating cavity 301, so that the stop plate 320 is less likely to interfere with the frame 310 during rotation.

[0035] In some embodiments, fasteners are also included. The outer side of the third connecting portion 313 is provided with a plurality of first connecting holes 314 spaced circumferentially, and the outer side of the air outlet 201 is provided with corresponding second connecting holes 202. The first connecting holes 314 and the second connecting holes 202 are connected by fasteners to fix the frame 310 to the fan assembly 200. Optionally, the fasteners can be bolts, which are passed through the first connecting holes 314 and the second connecting holes 202 and tightened to tightly connect the frame 310 to the fan assembly 200, increasing the stability of the connection between the fan assembly 200 and the check valve 300.

[0036] In some embodiments, the end of the third connecting portion 313 extends inward toward the second connecting portion 312, allowing gas to flow more smoothly from the fan assembly 200 into the check valve 300. A vent is provided on the extended end of the third connecting portion 313, and a baffle 320 is installed on the vent, i.e., the baffle 320 corresponds to the vent. The vent guides the airflow direction, enhancing the control of the baffle 320 over gas flow. The baffle 320 can block or open the vent according to the airflow conditions to control the flow of gas. Simultaneously, it ensures the sealing of the connection between the connecting portion and the baffle.

[0037] Considering that larger particles can easily enter the check valve or the water heater, to prevent damage to the baffle plate 320, the connector 330, and the internal components of the water heater, in some embodiments, a mesh 340 is provided at the end of the frame 310 away from the fan assembly 200. The mesh 340 has grid-like openings. The mesh structure of the mesh 340 separates gas and impurities, allowing only gas to pass through and preventing other impurities from entering. Furthermore, there are multiple openings, each of which is arc-shaped.

[0038] In some embodiments, both the valve body and the plate are made of stainless steel, which enables the check valve 300 to be used for a long time in humid and harsh vehicle environments, and is not prone to rust and damage, while ensuring that the components are not easily deformed under stress.

[0039] In addition, the shell 100 is also equipped with a water outlet connector, which connects to the RV's water pipe and can be directly connected to the shower head outside the vehicle for convenient outdoor use.

[0040] 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.

[0041] 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 water heater, characterized in that: include: A housing (100) having an installation cavity inside; A fan assembly (200) is disposed within the mounting cavity, the fan assembly (200) having an air outlet (201); A check valve (300) includes a frame (310), a stop plate (320), and a connector (330). One end of the frame (310) is connected to the air outlet (201). The frame (310) has a through cavity (301). The stop plate (320) and the connector (330) are located in the cavity (301). The stop plate (320) is rotatably connected to the frame (310) through the connector (330) so as to block the cavity (301) or allow the cavity (301) to pass through when rotating.

2. The vehicle-mounted water heater according to claim 1, characterized in that: The frame (310) includes a first connecting part (311), a second connecting part (312) and a third connecting part (313). The first connecting part (311) is connected to the third connecting part (313) through the second connecting part (312). The first connecting part (311), the second connecting part (312) and the third connecting part (313) are cylindrical. The stop plate (320) and the connector (330) are disposed in the second connecting part (312).

3. The vehicle-mounted water heater according to claim 2, characterized in that: The diameter of the second connecting part (312) is larger than the diameter of the first connecting part (311) and the third connecting part (313).

4. The vehicle-mounted water heater according to claim 2, characterized in that: It also includes fasteners. The outer side of the third connecting part (313) is provided with a plurality of first connecting holes (314) spaced apart along the circumference, and the outer side of the air outlet (201) is provided with a corresponding second connecting hole (202). The first connecting holes (314) and the second connecting holes (202) are connected by the fasteners so as to fix the frame (310) to the fan assembly (200) by the fasteners.

5. The vehicle-mounted water heater according to claim 2, characterized in that: The end of the third connecting part (313) extends inward toward the second connecting part (312), and a vent is provided on the extended end of the third connecting part (313), and the stop plate (320) is installed on the vent.

6. The vehicle-mounted water heater according to claim 1, characterized in that: The connector (330) is a rotating shaft, which is disposed in the accommodating cavity (301) and rotatably connected to the stop plate (320).

7. The vehicle-mounted water heater according to claim 1, characterized in that: The connector (330) is a hinge, which is disposed in the accommodating cavity (301) and rotatably connected to the stop plate (320).

8. The vehicle-mounted water heater according to claim 1, characterized in that: The frame (310) is also provided with a mesh (340) at one end away from the fan assembly (200), and the mesh (340) has a grid-like opening.

9. The vehicle-mounted water heater according to claim 8, characterized in that: There are multiple openings, and each opening is arc-shaped.

10. The vehicle-mounted water heater according to claim 1, characterized in that: Both the frame (310) and the stop plate (320) are made of stainless steel.

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