Vehicle-mounted water heater

Abstract

The present application relates to a vehicle-mounted water heater. During installation, a combustion heat-exchange assembly is provided on the side of an installation chamber away from an opening, and a fan assembly is installed on the side of the installation chamber close to the opening, such that generated high-temperature flue gas can be pumped out by the fan assembly via a flue gas outlet channel, thus helping to heat a water source; a clearance space communicated with the opening is formed between a support frame and one side wall of the installation chamber; a sampling interface is integrally provided on a valve body and the sampling interface is arranged facing the opening, thus facilitating operators in connecting sampling interfaces and sampling tubes in installation chambers, and reducing the difficulty for operators in installing valve bodies and adapted elements of the valve bodies. During connection of a sampling interface and a sampling tube, the processes of complete machine assembly can be reduced for the vehicle-mounted water heater, facilitating complete machine installation, and reducing the difficulty and costs of the part production process.

Description

A car water heater

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on January 31, 2024, with application number 202420249053.6 and invention name “A Car-mounted Water Heater”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to a water heater, and in particular to a vehicle-mounted water heater. Background Art

[0004] As living standards continue to improve, more and more people are traveling by car. RVs, with their functionality for living, dining, and showering, have become an essential travel tool. Currently, RV water heaters are categorized by heat energy source, including fuel-fired, electric, gas, and solar. Gas water heaters, compared to other types of water heaters, offer advantages such as environmental friendliness, energy efficiency, ease of use, and low cost, making them a key area of ​​future development for RV water heaters.

[0005] Conventional technology often uses the following methods to connect the secondary pressure sampling port of the gas circuit to the water heater housing: A nut, a small copper tube, and an air jet pipe are connected to the secondary pressure sampling port, and then connected to the housing for securement. However, this structure can easily loosen the connection between components after prolonged vibration. Alternatively, a small copper tube is welded to the air jet pipe connecting pipe, and then connected to the housing for secure installation. This structure requires additional holes and welds on the gas pipe, and the secondary pressure pipe has a small diameter and a long length. This makes it susceptible to external force during assembly, and the weld joints are prone to cracking and leaking after prolonged vibration. Therefore, existing vehicle-mounted gas water heaters are less safe. Summary of the Invention

[0006] The technical problem solved by the present application is to provide a vehicle-mounted water heater, which effectively solves the problem of low safety of the vehicle-mounted gas water heater caused by an external secondary pressure sampling port.

[0007] The above technical problems are solved by the following technical solutions:

[0008] A vehicle-mounted water heater comprises a shell structure, a combustion heat exchange component, a fan component, a support frame and an air intake valve body component, the shell structure comprises a shell body, the shell body encloses an installation chamber with an opening; the combustion heat exchange component is arranged on a side of the installation chamber away from the opening; the fan component is arranged on a side of the installation chamber close to the opening, and the smoke collecting chamber of the fan component is connected to the smoke outlet channel of the combustion heat exchange component; the support frame is connected to the fan component and is used to support the fan component; the air intake valve body assembly comprises a valve body, the valve body is placed in the installation chamber, the valve body is provided with a sampling interface, the sampling interface is connected to the inner cavity of the valve body, and an avoidance space connected to the opening is formed between the support frame and a side wall of the installation chamber, and the sampling interface is arranged towards the opening.

[0009] Compared with the prior art, the vehicle-mounted water heater described in the present application has the following advantages: during installation, by arranging the combustion heat exchange assembly on the side of the installation chamber away from the opening and using a support frame to install the fan on the side of the installation chamber close to the opening, the generated high-temperature flue gas can be extracted by the fan assembly through the smoke outlet channel to heat the water source; a clearance space connected to the opening is formed between the support frame and a side wall of the installation chamber; and by integrating the sampling interface with the valve body and arranging the sampling interface toward the opening, it is convenient for the operator to connect the sampling interface and the sampling tube in the installation chamber, reducing the difficulty of the operator to install the valve body and the valve body adapter component, and avoiding the phenomenon of loose connection between components and cracking and leakage of welding joints when connecting the secondary pressure sampling port in the prior art. When connecting the sampling interface and the sampling tube, the vehicle-mounted water heater can reduce the assembly process of the whole machine, facilitate the installation of the whole machine, and reduce the difficulty and cost of the component production process.

[0010] In one embodiment, the sampling port is directly opposite to the avoidance space.

[0011] In one embodiment, an escape gap is provided on one edge of the support frame, and the escape gap is connected to the escape space.

[0012] The vehicle-mounted water heater described in the present application has the following beneficial effects: by adding an avoidance gap connected to the avoidance space on one edge of the support frame, the avoidance area can be increased, which further facilitates the operator to connect the sampling interface and sampling tube in the installation chamber, and reduces the difficulty of the operator in installing the valve body and valve body adapter components.

[0013] In one embodiment, the intake valve body assembly also includes a valve body bracket, and the valve body bracket includes a first support plate and a second support plate that are arranged at intervals and form an angle with each other, the first support plate is fixed to the inner wall of the installation chamber, and the second support plate is used to fix the valve body, and one side of the first support plate and the second support plate are connected by a connecting plate, the first support plate is provided with a number of first shock-absorbing pads that fit the inner wall of the installation chamber, and the second support plate is provided with a number of second shock-absorbing pads that fit the valve body.

[0014] The vehicle-mounted water heater described in the present application has the following beneficial effects: by adding a number of first shock-absorbing pads that fit the inner wall of the installation chamber on the first support plate, and adding a number of second shock-absorbing pads that fit the valve body on the second support plate, the impact of vibrations generated during the movement of the vehicle-mounted water heater on the valve body and the mounting bracket can be reduced, the seismic resistance of the entire machine can be improved, and the risk of valve leakage caused by the valve body shaking due to local swinging of the valve body mounting bracket can be reduced.

[0015] In one embodiment, the first support plate and the second support plate are connected via a connecting plate, and the connecting plate is located on one side of the first support plate and the second support plate.

[0016] In one embodiment, the first support plate and the second support plate are arranged parallel to each other.

[0017] In one embodiment, a side wall of the first shock-absorbing pad is provided with a positioning groove, and the first support plate is provided with a positioning notch, and an edge of the positioning notch is clamped in the positioning groove.

[0018] The vehicle-mounted water heater described in the present application has the beneficial effect of facilitating the positioning and installation of the valve body bracket by clamping the edge of the positioning notch into the positioning groove.

[0019] In one embodiment, the first shock-absorbing pad and the second shock-absorbing pad are both provided with fixing holes penetrating through the upper and lower end surfaces thereof and for fasteners to pass through.

[0020] The vehicle-mounted water heater described in the present application has the following beneficial effects: by providing the first shock-absorbing pad and the second shock-absorbing pad with fixing holes that pass through the upper and lower end surfaces thereof and are used for fasteners to pass through, it is convenient to use fasteners to complete the fixation of the valve body, the first shock-absorbing pad, the first support plate, the second shock-absorbing pad, the second support plate and the shell body.

[0021] In one embodiment, the combustion and heat exchange assembly includes a burner, a combustion chamber shell and a heat exchanger arranged in sequence from bottom to top in the installation chamber, the outer wall of the burner is provided with a plurality of third shock-absorbing pads that fit with the inner wall of the installation chamber, and the heat exchanger is installed on the top of the shell body.

[0022] The vehicle-mounted water heater described in the present application has the following beneficial effects: by providing a third shock-absorbing pad on the outer wall of the burner that fits with the inner wall of the installation chamber, it is convenient to reduce the impact of vibration generated during the movement of the vehicle-mounted water heater on the burner.

[0023] In one embodiment, the inner wall of the installation chamber is provided with a positioning protrusion, and the positioning protrusion is used to support the third shock-absorbing pad and the burner.

[0024] The vehicle-mounted water heater described in the present application has the beneficial effect that positioning of the burner is facilitated when it is installed by adding a positioning protrusion to the inner wall of the installation chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] FIG1 is a perspective view of a vehicle-mounted water heater provided in an embodiment of the present application;

[0027] FIG2 is a three-dimensional view of the vehicle-mounted water heater provided by an embodiment of the present application with the cover opened;

[0028] FIG3 is a perspective view of components of a vehicle-mounted water heater provided in an embodiment of the present application;

[0029] FIG4 is a perspective view of an air intake valve body assembly in a vehicle-mounted water heater provided in an embodiment of the present application;

[0030] FIG5 is an exploded view of an air intake valve body assembly in a vehicle-mounted water heater provided by an embodiment of the present application;

[0031] FIG6 is a partial enlarged view of portion A in FIG5 ;

[0032] FIG7 is a side view of an air intake valve body assembly in a vehicle-mounted water heater provided in an embodiment of the present application;

[0033] FIG8 is a cross-sectional view of an air intake valve body assembly in a vehicle-mounted water heater provided in an embodiment of the present application;

[0034] FIG9 is a cross-sectional view of a valve body in a vehicle-mounted water heater provided in an embodiment of the present application;

[0035] Explanation of Reference Numerals: 1. Shell structure; 11. Shell body; 111. Bottom shell; 1111. Positioning protrusion; 112. Upper enclosure; 12. Surface shell; 121. Surface frame; 122. Hinge; 123. Surface shell body; 124. Locking member; 2. Combustion and heat exchange assembly; 21. Burner; 22. Combustion chamber shell; 23. Heat exchanger; 24. Third shock-absorbing pad; 3. Fan assembly; 4. Support frame; 411. Avoidance gap; 5. Inlet valve body assembly; 51. Valve body; 511. Sampling interface; 52. Valve body bracket; 521. First support plate; 5211. Positioning notch; 522. Second support plate; 523. Connecting plate; 53. First shock-absorbing pad; 5311. Positioning groove; 5312. Fixing hole; 54. Second shock-absorbing pad; 55. Valve cover; 56. Inlet pipe assembly; 57. Jet pipe assembly; 58. Seal; 59. Fastener; 6. Controller. DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of this application.

[0037] In the description of this application, it should be understood that the terms "upper", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They 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, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0038] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature identified as "first," "second," or "third" may explicitly or implicitly include one or more of such features. Throughout the description of this application, unless otherwise specified, "plurality" means two or more.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0040] Referring to Figures 1 to 9, Figure 1 shows a three-dimensional view of the vehicle-mounted water heater provided in an embodiment of the present application; Figure 2 shows a front view of the vehicle-mounted water heater provided in an embodiment of the present application when the surface shell is opened; Figure 3 shows a three-dimensional view of the components in the vehicle-mounted water heater provided in an embodiment of the present application; Figure 4 shows a three-dimensional view of the air intake valve body assembly in the vehicle-mounted water heater provided in an embodiment of the present application; Figure 5 shows an exploded view of the air intake valve body assembly in the vehicle-mounted water heater provided in an embodiment of the present application; Figure 6 is a partial enlarged view of part A in Figure 5; Figure 7 shows a side view of the air intake valve body assembly in the vehicle-mounted water heater provided in an embodiment of the present application; Figure 8 shows a cross-sectional view of the air intake valve body assembly in the vehicle-mounted water heater provided in an embodiment of the present application; Figure 9 shows a cross-sectional view of the valve body in the vehicle-mounted water heater provided in an embodiment of the present application.

[0041] As shown in Figures 1 to 5 and Figure 9, the vehicle-mounted water heater provided in this embodiment includes a shell structure 1, a combustion heat exchange component 2, a fan component 3, a support frame 4 and an air intake valve body component 5. Specifically, the shell structure 1 includes a shell body 11, which encloses a mounting chamber with an opening; the combustion heat exchange component 2 is arranged on a side of the mounting chamber away from the opening; the fan component 3 is arranged on a side of the mounting chamber close to the opening, and the smoke collecting chamber of the fan component 3 is connected to the smoke outlet channel of the combustion heat exchange component 2; the support frame 4 is connected to the fan component 3 and is used to support the fan component 3; the air intake valve body component 5 includes a valve body 51, which is placed in the mounting chamber and is provided with a sampling interface 511, which is connected to the inner cavity of the valve body 51, and an avoidance space connected to the opening is formed between the support frame 4 and a side wall of the mounting chamber, and the sampling interface 511 is arranged towards the opening.

[0042] When installing the vehicle-mounted water heater of the above structure, the combustion heat exchange component 2 is set on the side of the installation chamber away from the opening, and the support frame 4 is used to install the fan on the side of the installation chamber close to the opening, so that the high-temperature flue gas generated can be extracted by the fan component through the smoke outlet channel to heat the water source; and an escape space connected to the opening is formed between the support frame 4 and a side wall of the installation chamber, and by integrating the sampling interface 511 at the valve body 51 and by setting the sampling interface 511 toward the opening, it is convenient for the operator to connect the sampling interface 511 and the sampling tube in the installation chamber, reducing the difficulty of the operator in installing the valve body 51 and the adapter components of the valve body 51, avoiding the phenomenon that the connection relationship between the components is easy to loosen when the secondary pressure sampling port is connected externally in the background technology, or avoiding the phenomenon that the welding joint is easy to crack and leak when the secondary pressure sampling port is connected externally. When the vehicle-mounted water heater is connected to the sampling interface 511 and the sampling tube, the assembly process of the entire machine can be reduced, the installation of the entire machine is facilitated, and the difficulty and cost of the parts production process are reduced.

[0043] It can be explained that, in the vehicle-mounted water heater provided in this embodiment, there is no specific limitation on the arrangement of the sampling interface 511 , and the sampling interface 511 only needs to be arranged toward the opening.

[0044] As one of the embodiments, the sampling port 511 is disposed opposite to the avoidance space.

[0045] Of course, in other optional embodiments, the sampling interface 511 can be set on the side of the valve body 51. In this case, the sampling interface 511 and the support frame 4 are staggered and the area around the sampling interface 511 is left vacant.

[0046] Optionally, in the above embodiment, an avoidance gap 411 is provided on one edge of the support frame 4 , and the avoidance gap 411 is communicated with the avoidance space.

[0047] The vehicle-mounted water heater of the above structure can increase the avoidance area by adding an avoidance gap 411 connected to the avoidance space on one side of the support frame 4, further facilitating the operator to connect the sampling interface 511 and the sampling tube in the installation chamber, and reducing the difficulty of the operator in installing the valve body 51 and the adapter components of the valve body 51.

[0048] It can be explained that the vehicle-mounted water heater provided in this embodiment does not specifically limit the composition of the shell body 11. The shell body 11 includes a bottom shell 111 and an upper panel 112. The bottom shell 111 and the upper panel 112 enclose an installation chamber with an opening on one side. At this time, the bottom shell 111 includes a bottom plate and a back plate arranged opposite to the opening. The upper panel 112 includes two side panels and a top plate. During installation, the bottom shell 111 and the upper panel 112 are disassembled and installed to facilitate disassembly and assembly by the operator as needed.

[0049] As shown in Figures 2 to 4, the vehicle-mounted water heater provided in this embodiment, the air intake valve body assembly 5 also includes a valve body bracket 52, the valve body bracket 52 includes a first support plate 521 and a second support plate 522 that are arranged at intervals and form an angle with each other, the first support plate 521 is fixed to the inner wall of the installation chamber, the second support plate 522 is used to fix the valve body 51, the first support plate 521 and the second support plate 522 are connected on one side by a connecting plate 523, the first support plate 521 is provided with a plurality of first shock-absorbing pads 53 that are in contact with the inner wall of the installation chamber, and the second support plate 522 is provided with a plurality of second shock-absorbing pads 54 that are in contact with the valve body 51.

[0050] The vehicle-mounted water heater with the above structure can reduce the impact of vibration generated during the movement of the vehicle-mounted water heater on the valve body 51 and the mounting bracket by adding a number of first shock-absorbing pads 53 that fit the inner wall of the installation chamber on the first support plate 521, and adding a number of second shock-absorbing pads 54 that fit the valve body 51 on the second support plate 522, thereby improving the seismic resistance of the entire machine and reducing the risk of air leakage in the valve body 51 caused by the shaking of the valve body 51 due to local swinging of the mounting bracket of the valve body 51.

[0051] It can be explained that the vehicle-mounted water heater provided in this embodiment does not impose any specific limitation on the specific structure of the valve body bracket 52 .

[0052] As one embodiment, the first support plate 521 and the second support plate 522 are connected via a connecting plate 523 , and the connecting plate 523 is located on one side of the first support plate 521 and the second support plate 522 .

[0053] Optionally, to reduce installation difficulty, the first support plate 521 and the second support plate 522 are arranged parallel to each other.

[0054] It can be explained that, in the vehicle-mounted water heater provided in this embodiment, the side wall of the first shock-absorbing pad 53 is provided with a positioning groove 5311 , the first support plate 521 is provided with a positioning notch 5211 , and the edge of the positioning notch 5211 is clamped in the positioning groove 5311 .

[0055] The vehicle-mounted water heater of the above structure facilitates positioning and installation of the valve body bracket 52 by clamping the edge of the positioning notch 5211 into the positioning groove 5311 .

[0056] Similarly, in this embodiment, in order to facilitate the disassembly and installation of the valve body 51, the first shock-absorbing pad 53, the first support plate 521, the second shock-absorbing pad 54, the second support plate 522 and the shell body 11 by the fastener 59, the first shock-absorbing pad 53 and the second shock-absorbing pad 54 are both provided with fixing holes 5312 that pass through their upper and lower end surfaces and are used for the fastener 59 to pass through.

[0057] Specifically, additional fixing holes 5312 for fasteners 59 are provided in the valve body 51, the first support plate 521, the second support plate 522, and the housing body 11. During installation, a set of fasteners 59 is inserted through the fixing holes 5312 of the valve body 51, the fixing holes 5312 of the first shock-absorbing pad 53, and the fixing holes 5312 of the first support plate 521, thereby enabling the valve body 51, the first shock-absorbing pad 53, and the first support plate 521 to be removed and installed. Similarly, another set of fasteners 59 is inserted through the fixing holes 5312 of the second support plate 522, the fixing holes 5312 of the second shock-absorbing pad 54, and the fixing holes 5312 of the housing body 11, thereby enabling the second support plate 522, the second shock-absorbing pad 54, and the housing body 11 to be removed and installed.

[0058] Optionally, in this embodiment, the fastener 59 is a screw, which is used in combination with a nut to complete the installation of the valve body 51, the first shock-absorbing pad 53 and the first support plate 521, and the second support plate 522, the second shock-absorbing pad 54 and the shell body 11.

[0059] As shown in FIG. 2 to FIG. 5 and FIG. 7 and FIG. 8 , in the vehicle-mounted water heater provided in this embodiment, the air intake valve body assembly 5 further includes a valve cover 55 , which is sealed to the valve body 51 .

[0060] The vehicle-mounted water heater of the above structure can prevent the valve cover 55 from being subjected to stress even if the valve body 51 shakes accidentally by sealingly connecting the valve cover 55 to the valve body 51 and fixing the valve body 51 mounting bracket to the valve body 51, thereby reducing the risk of air leakage caused by the valve cover 55 being loosened due to the stress on the valve cover 55.

[0061] It can be explained that the vehicle-mounted water heater provided in this embodiment has a sealing member 58, such as a sealing ring, placed at the connection between the valve cover 55 and the valve body 51. At this time, the valve body 51 and the valve cover 55 are enclosed to form a accommodating chamber for placing the sealing ring.

[0062] As shown in Figures 2 to 5, the vehicle-mounted water heater provided in this embodiment, the air intake valve body assembly 5 also includes an air intake pipe assembly 56 and an air jet pipe assembly 57. At this time, the air intake pipe assembly 56, the valve body 51 and the air jet pipe assembly 57 form an air circuit, and a seal 58 is placed at the air inlet of the valve body 51, and a seal 58 is provided at the air outlet of the valve body 51 to ensure the air tightness of the air inlet and air outlet of the valve body 51.

[0063] It can be explained that, in the vehicle-mounted water heater provided in this embodiment, the air outlet end of the air inlet pipe assembly 56 and the air inlet end of the jet pipe assembly 57 are both provided with flanges or mounting seats, and fasteners 59 such as bolts are used to mount the air outlet end of the air inlet pipe assembly 56 to the air inlet, and to mount the air inlet end of the jet pipe assembly 57 to the air outlet.

[0064] Similarly, in the vehicle-mounted water heater provided in this embodiment, the air inlet end of the air inlet pipe assembly 56 is fixedly mounted on the housing body 11 , and the air outlet end of the air injection pipe assembly 57 is mounted on the burner 21 .

[0065] As shown in FIG. 2 to FIG. 5 and FIG. 7 to FIG. 9 , in the vehicle-mounted water heater provided in this embodiment, the sampling interface 511 and the valve body 51 are integrally formed.

[0066] The vehicle-mounted water heater of the above structure is easy to produce, install and maintain by integrally forming the sampling interface 511 and the valve body 51 .

[0067] As shown in FIG. 1 to FIG. 3 , the vehicle-mounted water heater provided in this embodiment has a shell structure 1 further comprising a surface shell 12 , which is detachably installed at the opening to separate the installation chamber from the outside.

[0068] The vehicle-mounted water heater of the above structure is disassembled and installed at the opening by using the surface shell 12, which makes it convenient for the operator to open the surface shell 12 as needed to debug, maintain or replace the components placed in the installation chamber, thereby reducing the difficulty of disassembly and assembly.

[0069] It can be explained that the vehicle-mounted water heater provided in this embodiment does not impose any specific limitation on the structure of the surface shell 12 .

[0070] As one embodiment, the face shell 12 includes a face frame 121, a hinge 122, a face shell body 123, and a locking member 124. Specifically, the face frame 121 is fixedly mounted at the opening of the installation chamber, and the face frame 121 is configured to conform to the outer edge of the opening. The face shell body 123 is rotatably connected to the face frame 121 via the hinge 122. The locking member 124 is a cam lock. After assembly, the face shell body 123 is fixed to the face frame 121. When it is necessary to disassemble or assemble components within the installation chamber, that is, to release the connection between the face shell body 123 and the face frame 121, the face shell body 123 can be opened by simply inserting a key into the lock cylinder of the cam lock and rotating it. This facilitates the operator to debug, maintain, or replace components placed within the installation chamber as needed, reducing the difficulty of disassembly and assembly.

[0071] As shown in Figures 1 and 3, the vehicle-mounted water heater provided in this embodiment, the combustion and heat exchange assembly 2 includes a burner 21, a combustion chamber shell 22 and a heat exchanger 23 arranged in sequence from bottom to top in the installation chamber, and the outer wall of the burner 21 is provided with a plurality of third shock-absorbing pads 24 that fit with the inner wall of the installation chamber, and the heat exchanger 23 is installed on the top of the shell body 11.

[0072] The vehicle-mounted water heater of the above structure has a third shock-absorbing pad 24 on the outer wall of the burner 21 that fits the inner wall of the installation chamber, so as to reduce the impact of vibration generated during the movement of the vehicle-mounted water heater on the burner 21.

[0073] It can be explained that the vehicle-mounted water heater provided in this embodiment is provided with a positioning protrusion 1111 at the bottom of the shell body 11.

[0074] Specifically, as one of the embodiments, a positioning protrusion 1111 is provided on the inner wall of the installation chamber, and the positioning protrusion 1111 is used to support the third shock-absorbing pad 24 and the burner 21.

[0075] The vehicle-mounted water heater of the above structure is easy to position when installing the burner 21 by adding a positioning protrusion 1111 on the inner wall of the installation chamber.

[0076] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The specific contents of the above-mentioned specific embodiments merely represent several embodiments of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and such modifications and improvements are all within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A car water heater, characterized in that: include: A housing structure (1), the housing structure (1) comprising a housing body (11), the housing body (11) enclosing and forming an installation chamber having an opening; A combustion heat exchange component (2) is arranged on a side of the installation chamber away from the opening; A fan assembly (3) is arranged on a side of the installation chamber close to the opening, and a smoke collecting chamber of the fan assembly (3) is connected to a smoke outlet channel of the combustion heat exchange assembly (2); a support frame (4), the support frame (4) being connected to the fan assembly (3) and being used to support the fan assembly (3); An air intake valve body assembly (5), the air intake valve body assembly (5) comprising a valve body (51), the valve body (51) being placed in an installation chamber, the valve body (51) being provided with a sampling interface (511), the sampling interface (511) being in communication with an inner cavity of the valve body (51), a relief space in communication with the opening being formed between the support frame (4) and a side wall of the installation chamber, the sampling interface (511) being arranged towards the opening.

2. The vehicle-mounted water heater according to claim 1, characterized in that: The sampling interface (511) is directly opposite to the avoidance space.

3. The vehicle-mounted water heater according to claim 1, characterized in that: An escape notch (411) is provided on one edge of the support frame (4), and the escape notch (411) is communicated with the escape space.

4. The vehicle-mounted water heater according to any one of claims 1 to 3, characterized in that: The intake valve body assembly (5) further includes a valve body bracket (52), the valve body bracket (52) including a first support plate (521) and a second support plate (522) which are spaced apart and form an angle with each other, the first support plate (521) being fixed to the inner wall of the installation chamber, the second support plate (522) being used to fix the valve body (51), one side of the first support plate (521) and the second support plate (522) being connected via a connecting plate (523), the first support plate (521) being provided with a plurality of first shock-absorbing pads (53) which are in contact with the inner wall of the installation chamber, and the second support plate (522) being provided with a plurality of second shock-absorbing pads (54) which are in contact with the valve body (51).

5. The vehicle-mounted water heater according to claim 4, characterized in that: The first support plate (521) and the second support plate (522) are connected via a connecting plate (523), and the connecting plate (523) is located on one side of the first support plate (521) and the second support plate (522).

6. The vehicle-mounted water heater according to claim 5, characterized in that: The first support plate (521) and the second support plate (522) are arranged parallel to each other.

7. The vehicle-mounted water heater according to claim 4, characterized in that: The side wall of the first shock-absorbing pad (53) is provided with a positioning groove (5311), and the first support plate (521) is provided with a positioning notch (5211), and the edge of the positioning notch (5211) is clamped in the positioning groove (5311).

8. The vehicle-mounted water heater according to claim 4, characterized in that: The first shock-absorbing pad (53) and the second shock-absorbing pad (54) are both provided with fixing holes (5312) penetrating the upper and lower end surfaces thereof and used for fasteners (59) to pass through.

9. The vehicle-mounted water heater according to any one of claims 1 to 3, characterized in that: The combustion heat exchange assembly (2) comprises a burner (21), a combustion chamber shell (22) and a heat exchanger (23) which are arranged in sequence from bottom to top in an installation chamber, the outer wall of the burner (21) is provided with a plurality of third shock-absorbing pads (24) which are in contact with the inner wall of the installation chamber, and the heat exchanger (23) is installed on the top of the shell body (11).

10. The vehicle-mounted water heater according to claim 9, characterized in that: The inner wall of the installation chamber is provided with a positioning protrusion (1111), and the positioning protrusion (1111) is used to support the third shock-absorbing pad (24) and the burner (21).

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