Vehicle-mounted water heater with smoke pipe decoration ring

Abstract

The utility model provides a vehicle-mounted water heater with flue pipe decoration ring, include: shell, the front side of shell is equipped with the openable access door, be equipped with the smoke hole on the access door, install the flue pipe decoration ring on the smoke hole, be equipped with a plurality of gas holes on the flue pipe decoration ring, be equipped with the flue pipe in the shell, the flue pipe extends to the smoke hole to the front, the inner diameter of flue pipe decoration ring is greater than the outer diameter of flue pipe, and the flue pipe decoration ring is located the outside of flue pipe gas -discharging end, and the flue pipe is inserted into the flue pipe decoration ring and is docked. It is contact type connection between flue pipe and flue pipe decoration ring, and user need not direct contact high temperature flue pipe, can realize decoration ring automatic positioning or pre -installation, reduced the risk of scald in the operation process, promoted the use safety, can effectively shield internal structure and tolerance gap, promote the whole machine appearance harmony.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle-mounted gas water heaters, and more specifically to a vehicle-mounted water heater with a flue pipe decorative ring. Background Technology

[0002] Most vehicle-mounted water heaters on the market currently use an embedded structure installed on the side wall of the vehicle. Their exhaust structure usually involves directly opening an exhaust hole in the water heater's access panel. During installation, the exhaust pipe passes through the inside of the device and exhausts the fumes through the opening in the panel. Due to dimensional deviations during the assembly, welding, or transportation process, there is often a certain coaxiality error between the water heater's exhaust pipe and the panel opening, causing the exhaust pipe and exhaust hole to not align naturally.

[0003] Therefore, installers typically need to manually adjust the flue pipe position when closing the access door to ensure it smoothly enters the mounting hole. However, the flue pipe reaches high temperatures after prolonged burner operation, posing a significant safety hazard as users are highly susceptible to burns during operation. Some existing water heater access doors incorporate heat insulation mesh or decorative rings to address this issue, but these meshes and rings are often simple in structure and fail to effectively compensate for alignment errors between the flue pipe and the access hole. Utility Model Content

[0004] In view of this, the present invention provides a vehicle-mounted water heater with a flue pipe decorative ring.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A vehicle-mounted water heater with a flue pipe decorative ring includes: an outer shell, with an openable access door on the front side of the outer shell; a flue vent on the access door, a flue pipe decorative ring installed on the flue vent, and a plurality of air outlets on the flue pipe decorative ring; a flue pipe inside the outer shell, extending forward to the flue vent, the inner diameter of the flue pipe decorative ring being larger than the outer diameter of the flue pipe, the flue pipe decorative ring being located outside the air outlet end of the flue pipe, and the flue pipe being inserted into the flue pipe decorative ring for connection.

[0007] In a preferred embodiment, the flue decorative ring includes a front baffle and a fixing ring. The fixing ring is connected to the rear side of the front baffle, and the front baffle and the fixing ring form an integral structure. The air outlet is opened on the front baffle. The diameter of the front baffle is larger than the inner diameter of the exhaust hole. The outer diameter of the fixing ring matches the inner diameter of the exhaust hole. The flue decorative ring is embedded in the exhaust hole through the fixing ring to be assembled on the access door. The end of the exhaust pipe near the access door is inserted into the inner side of the fixing ring, and its end face can be close to or fit against the inner surface of the front baffle.

[0008] In the preferred technical solution, the air outlet is either a strip-shaped opening or a circular opening, and is set on the front baffle. The air outlet allows the decorative ring of the smoke pipe to effectively cover the smoke pipe while ensuring smooth smoke exhaust.

[0009] In the preferred technical solution, the inspection door is also provided with a ventilation and heat dissipation structure, which is a ventilation hole or a louver structure.

[0010] In the preferred technical solution, the inspection door is equipped with a door lock, which is a mechanical lock.

[0011] In the preferred technical solution, a grille is provided inside the exhaust pipe near its outlet.

[0012] In the preferred technical solution, the shell is equipped with a heat exchanger, a burner and an exhaust fan connected to the exhaust pipe; wherein the heat exchanger and the burner are connected by a water pipe to form a closed heat exchange system.

[0013] In the preferred embodiment, the rear side of the housing is provided with a cold water inlet and a hot water outlet connected to the heat exchanger, and a gas inlet connected to the burner.

[0014] As can be seen from the above technical solution, compared with the prior art, the present invention has the following beneficial technical effects:

[0015] This invention features a decorative ring for the flue pipe, integrally formed from a front baffle and a fixing ring. The fixing ring is inserted into the exhaust hole for quick alignment, and various connection methods, such as snap-fit ​​and interference fit, can accommodate assembly errors and ensure a stable connection. The exhaust pipe and the decorative ring are connected via a contact type, allowing the user to automatically position or pre-install the decorative ring without direct contact with the high-temperature exhaust pipe, reducing the risk of burns during operation and improving safety. The decorative ring structure covers the edge of the exhaust hole and includes strip-shaped vents, ensuring proper exhaust function while effectively concealing internal structures and tolerance gaps. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is an exploded structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0020] Figure 4 This is a schematic diagram showing the connection structure between the decorative ring on the flue and the exhaust pipe.

[0021] Figure 5 This is a three-dimensional structural diagram of the decorative ring for the flue pipe.

[0022] Reference numerals: 1. Outer shell; 12. Inspection door; 121. Smoke vent; 13. Smoke pipe decorative ring; 131. Air outlet; 132. Front baffle; 133. Fixing ring; 14. Ventilation and heat dissipation structure; 15. Smoke vent; 151. Grille; 16. Cold water inlet; 17. Hot water outlet; 18. Gas inlet; 19. Door lock. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0024] In the description of this application, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used 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, and therefore should not be construed as a limitation of this application. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] A type of vehicle-mounted water heater with a decorative ring for the flue pipe, such as Figure 1-5As shown, it includes: Outer shell 1: the main structure of the water heater, in a cubical shape with an opening on the front side. The material can be metal or engineering plastic, possessing good structural strength and thermal insulation. The front opening of outer shell 1 has a large outward-expanding plate to cover the edge of the pre-drilled mounting holes on the vehicle body during installation, ensuring a neat and seamless appearance after the device is embedded. The rear side of outer shell 1 has multiple interfaces, including a cold water inlet 16, a hot water outlet 17, and a gas inlet 18, for connecting to the vehicle's water supply system and gas system, respectively. An inspection door 12 is installed on the front side of outer shell 1, with an opening function. The inspection door 12 has a smoke exhaust hole 121, which is preferably integrally formed on the inspection door 12 by a stamping process. The hole has regular edges, high structural strength, and facilitates subsequent fixed connection with the flue pipe decorative ring. The smoke exhaust hole 121 is used to exhaust combustion flue gas; a flue pipe decorative ring 13 is installed in the smoke exhaust hole 121. The connection between the access door 12 and the outer shell 1 can be any of the following: hinge connection, latch and socket connection, or screw connection. The access door 12 is equipped with a door lock 19. After the access door 12 is installed and connected to the outer shell 12, it is locked by the door lock 19. The door lock 19 has a hook 151 that cooperates with the locking structure 112 on the outer shell 12 to lock the door. In use, after unlocking the door lock 19, the access door 12 can be opened around its connection point for maintenance and inspection of the internal structure.

[0027] Furthermore, the inspection door 12 is also equipped with a ventilation and heat dissipation structure 14, which consists of several louvered holes or vents to enhance airflow in the heat exchange area. The flue decorative ring 13 is integrally formed from the front baffle 132 and the fixing ring 133. The flue decorative ring 13 is an integral structure formed by the front baffle 132 and the fixing ring 133, preferably formed by injection molding, but can also be made by metal die casting, stamping and welding or other forming processes. The material can be high-temperature resistant plastic, stainless steel or aluminum alloy, etc., to meet the strength and heat resistance requirements. The diameter of the front baffle 132 is larger than that of the exhaust hole 121, which is used to cover the edge of the exhaust hole. The front baffle 132 has multiple strip-shaped air outlet holes 131. In other embodiments, the air outlet holes 131 can be circular openings or louvered structures, which can both ensure gas discharge and cover the end of the exhaust pipe. The outer diameter of the fixing ring 133 matches the exhaust hole 121, and is positioned and fixed after being inserted into the exhaust hole. An interference fit is preferred for a secure connection. Alternatively, the flue pipe decorative ring 13 can be fixed to the access door 12 using snaps, hooks, threads, screws, welding, or adhesive to meet the needs of different structural forms and installation processes. A gap washer or heat-resistant sealing structure can be provided between the flue pipe decorative ring 13 and the exhaust pipe 15 to optimize gas flow and reduce heat leakage. An exhaust pipe 15 is located inside the outer casing 1. The outlet end of the exhaust pipe 15 is inserted into the inner side of the fixing ring, with its end face close to or abutting the inner surface of the front baffle to achieve a stable connection and prevent misalignment or loosening. The exhaust pipe 15 connects to the exhaust port of the internal burner. The end of the exhaust pipe 15 near the access door 12 is the outlet end, which is inserted into the flue pipe decorative ring 13. A grille 151 is provided inside the exhaust pipe near the outlet end to prevent foreign objects from entering the pipe and improve safety.

[0028] Furthermore, the housing 1 contains a heating assembly, which can be modularly arranged in the middle or rear of the housing 1 to facilitate the arrangement of gas and water passages; including a burner for providing a heat source for combustion; a heat exchanger coupled to the burner for heat exchange, through which cold water is heated; and an exhaust fan connected to the exhaust pipe for driving the exhaust gas out. To simplify the illustration and highlight the structural points of this utility model, the heating assembly and other conventional internal components are not shown in the figure, but their structure is well known to those skilled in the art. The rear side of the housing has a cold water inlet 16 and a hot water outlet 17, through which cold water is heated by the heat exchanger and output from the hot water outlet; the rear side of the housing 12 also has a gas inlet 18, which is connected to the vehicle's gas system to supply gas to the burner. In use, cold water enters the heat exchanger through the cold water inlet, is heated by the burner, and hot water is output from the hot water outlet for use inside the vehicle. The exhaust gas generated after combustion is driven by the exhaust fan, discharged through the exhaust pipe 15, and exited through the vent 131 on the exhaust pipe decorative ring 13. The decorative ring 13 for the exhaust pipe not only provides an aesthetically pleasing cover but also conceals any gaps or deviations between the exhaust pipe 15 and the exhaust port, improving the visual effect. Meanwhile, the louvered structure of the exhaust port effectively prevents the entry of foreign objects and enhances exhaust efficiency. The door lock structure ensures the equipment is securely closed during transportation or vehicle operation, preventing accidental opening or detachment due to vibration.

[0029] Furthermore, this water heater features a vehicle-mounted embedded installation structure. During installation, the device is inserted from the rear of the pre-drilled mounting hole on the side of the vehicle body, and then inserted from the front into the mounting slot in the vehicle body panel. An outward-expanding plate on the front of the outer casing fits snugly against the outer surface of the vehicle wall, effectively concealing the edges of the mounting hole. After installation, the water heater and vehicle body form a unified appearance, and the water and gas systems are connected via interfaces, meeting the needs of mobile use. The main components of this water heater, such as the exhaust pipe, fan, and exhaust pipe decorative ring, are designed to be detachable for easy maintenance or replacement.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle-mounted water heater with a flue pipe decorative ring, characterized in that: include: The outer casing (1) has an openable inspection door (12) on the front side; The inspection door (12) is provided with a smoke exhaust hole (121), and a smoke pipe decorative ring (13) is installed on the smoke exhaust hole (121). The smoke pipe decorative ring (13) is provided with several air outlet holes (131). The outer casing (1) is provided with a smoke exhaust pipe (15), which extends forward to the smoke exhaust hole (121). The inner diameter of the flue pipe decorative ring (13) is larger than the outer diameter of the exhaust pipe (15). The flue pipe decorative ring (13) is located outside the exhaust pipe (15) outlet end. The exhaust pipe (15) is inserted into the flue pipe decorative ring (13) for connection.

2. A vehicle-mounted water heater with a flue pipe decorative ring according to claim 1, characterized in that: The flue decoration ring (13) includes a front baffle (132) and a fixing ring (133). The fixing ring (133) is connected to the rear side of the front baffle (132). The front baffle (132) and the fixing ring (133) form an integral structure. The air outlet (131) is opened on the front baffle (132). The diameter of the front baffle (132) is larger than the inner diameter of the smoke exhaust hole (121), the outer diameter of the fixing ring (133) matches the inner diameter of the smoke exhaust hole (121), and the smoke pipe decorative ring (13) is embedded in the smoke exhaust hole (121) through the fixing ring (133) to be assembled on the inspection door (12). The exhaust pipe (15) is inserted into the inner side of the fixing ring (133) at one end near the inspection door (12), and its end face can be close to or fit against the inner surface of the front baffle (132).

3. A vehicle-mounted water heater with a flue pipe decorative ring according to claim 1, characterized in that: The air outlet (131) is either a strip-shaped opening or a circular opening, and is set on the front baffle (132). The air outlet (131) enables the flue pipe decorative ring (13) to effectively block the flue pipe (15) while ensuring smooth smoke exhaust.

4. A vehicle-mounted water heater with a flue pipe decorative ring according to claim 1, characterized in that: The inspection door (12) is also provided with a ventilation and heat dissipation structure (14), which is a ventilation hole or a louver structure.

5. A vehicle-mounted water heater with a flue pipe decorative ring according to claim 1, characterized in that: The inspection door (12) is equipped with a door lock (19), which is a mechanical lock.

6. A vehicle-mounted water heater with a flue pipe decorative ring according to claim 1, characterized in that: The exhaust pipe (15) is provided with a grille (151) near its exhaust end.

7. A vehicle-mounted water heater with a flue pipe decorative ring according to claim 1, characterized in that: The outer casing (1) is equipped with a heat exchanger, a burner and a smoke exhaust fan connected to the smoke exhaust pipe (15); The heat exchanger and the burner are connected by a water pipe to form a closed heat exchange system.

8. A vehicle-mounted water heater with a flue pipe decorative ring according to claim 7, characterized in that: The rear side of the outer casing (1) is provided with a cold water inlet (16) connected to the heat exchanger, a hot water outlet (17) connected to the burner, and a gas inlet (18) connected to the burner.

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