Vehicle-mounted water heater and control method thereof

Abstract

The application relates to the technical field of vehicle-mounted equipment, and discloses a vehicle-mounted water heating machine and a control method thereof to solve the problems of large space occupation, poor adaptability and hidden safety hazards of existing vehicle-mounted water heating equipment. The vehicle-mounted water heating machine comprises a base, a water outlet unit, a first driving unit, a first detection unit, a liquid level sensing unit and a control unit. The water outlet unit comprises a liftable water outlet body and a reversible water outlet nozzle. The first driving unit drives the water outlet body to lift and lower, so that the water outlet body has a storage position in the base and a working position extending out. The first detection unit detects the height of a water receiving container. The control unit controls the first driving unit to adjust the height of the water outlet to maintain a safe distance. The liquid level sensing unit detects the liquid level and stops water supply when the liquid level is full. The application ensures water outlet only in a safe state through structural linkage and multi-module cooperation, and can self-adaptively adjust the water outlet height, thereby improving the space utilization, safety and use convenience in a vehicle-mounted scene.

Description

Technical Field

[0001] This application discloses information in the field of vehicle-mounted equipment technology, specifically relating to a vehicle-mounted water heater and its control method. Background Technology

[0002] Existing in-vehicle hot water systems typically suffer from problems such as large space occupation and insufficient safety protection. Specifically, external in-vehicle hot water systems often occupy interior space, affecting the tidiness of the vehicle; while fixed structures are mostly protruding, often unable to be completely hidden and stored, thus affecting the original function of the armrest box.

[0003] Furthermore, the outlet height of most existing vehicle-mounted water heating systems is fixed, making it difficult to adapt to water containers of different heights and shapes, resulting in poor flexibility in use. At the same time, the integration of modules is generally low, making efficient layout difficult in confined spaces such as car armrests, and hindering the guarantee of ease of operation and long-term durability. These problems collectively lead to significant shortcomings in the user experience, space utilization, and safety of existing vehicle-mounted water heating systems. Summary of the Invention

[0004] In view of the aforementioned defects or shortcomings in the prior art, namely, the existing vehicle-mounted hot water equipment has problems such as large space occupation, poor adaptability, and safety hazards, the first aspect of this application provides a vehicle-mounted hot water unit, which is integrated and installed on the center console of a vehicle, and the vehicle-mounted hot water unit includes: The base is constructed as an integrated module installed inside the central armrest box, and has an opening at the top; The water outlet unit has a storage position and a working position, including a water outlet body that can move up and down relative to the base and a water outlet nozzle that is rotatably connected to the water outlet body; The first driving unit is configured to drive the water outlet unit to move up and down so that the water outlet unit can switch back and forth between the storage position and the working position; wherein, in the storage position, the top of the water outlet unit is flush with or lower than the top surface of the base; in the working position, the water outlet body extends at least partially out of the base to meet the liquid discharge conditions. The first detection unit is installed on the water outlet body and is used to detect the highest point of the liquid container. The control unit, electrically connected to both the first drive unit and the first detection unit, is configured as follows: In response to a water discharge command, the first drive unit is controlled to drive the water discharge body to switch to the working position; Based on the detected highest point position of the liquid container, the first drive unit is controlled to adjust the extension height of the water outlet unit so that the water outlet of the water nozzle maintains a preset safe liquid outlet distance from the top position.

[0005] Preferably, according to the technical solution provided in the embodiments of this application, the first drive unit includes a first drive motor and a linear drive assembly that is drively connected to the output shaft of the first drive motor; The linear drive assembly is arranged vertically, and the water outlet body is provided with a motion conversion part that is threadedly engaged with the linear drive assembly. The rotational motion of the linear drive assembly is converted into the linear lifting motion of the water outlet unit through the motion conversion part.

[0006] Preferably, according to the technical solution provided in the embodiments of this application, the water outlet body is provided with a second driving unit, the second driving unit is connected to the water outlet nozzle, and is used to drive the water outlet nozzle to rotate relative to the water outlet body, so that the water outlet nozzle has a folded state and an unfolded state; wherein, in the folded state, the water outlet nozzle is folded and stored in the receiving groove opened on the water outlet body; in the unfolded state, the water outlet nozzle rotates away from the water outlet body to meet the liquid dispensing conditions.

[0007] Preferably, the technical solution provided in the embodiments of this application further includes a second detection unit, used to detect whether the water outlet is in the folded state or the unfolded state; The second detection unit is electrically connected to the control unit, which is further configured to enable or disable the water outlet function according to the state detected by the second detection unit.

[0008] A second aspect of this application provides a control method for an on-board water heater, comprising the following steps: Upon receiving the start command, the first drive unit is controlled to raise the water outlet unit from the storage position to the working position, and the second drive unit is controlled to flip the water outlet from the folded state to the unfolded state. The state of the water outlet is detected by the second detection unit. When the second detection unit detects that the water outlet has reached the water outlet state, it is determined that the current state condition for allowing water to be discharged is met. The first detection unit detects the highest point of the liquid container, and the first drive unit is controlled to adjust the height of the water outlet unit based on the detection result, so that the water outlet of the water outlet and the top position are kept at a preset safe distance. After completing the height alignment, the flow control valve is controlled to discharge water, and the liquid level height is monitored by the liquid level sensing unit. When the liquid level is detected to have reached the preset liquid level stop condition, the flow control valve is closed to stop the water flow.

[0009] The beneficial effects of this application are analyzed as follows: The technical solution of this application integrates functional modules such as a liftable water outlet unit, a flip-up water outlet nozzle, container height detection, water outlet status detection, and liquid level sensing into the armrest box, forming a complete system with small space occupation, concealed appearance, and automated operation process, which significantly improves the space utilization, interior aesthetics, and ease of use in the vehicle scenario.

[0010] The water outlet unit and nozzle can automatically switch between storage and working states, solving the drawback of fixed equipment occupying space for a long time; the lifting and storage structure significantly improves spatial adaptability and ease of use, meeting the layout requirements of limited vehicle interior space while ensuring the integrity of the armrest box function and the cleanliness of its surface.

[0011] By detecting the folded and unfolded state of the water nozzle and interlocking the start and stop of the water flow function accordingly, the multi-state detection and linkage control greatly enhance the safety and reliability of the equipment and effectively reduce the risk of water leakage or scalding caused by misoperation.

[0012] The first detection unit, combined with the liquid level sensing unit, can automatically identify the height of the water container and adjust the appropriate distance between the water outlet and the cup opening. This not only makes it widely compatible with different containers but also effectively reduces the risk of hot water splashing. At the same time, the automatic water shut-off function when the liquid is full eliminates the burden of continuous monitoring for users and avoids potential safety hazards and vehicle interior pollution caused by overflow. Attached Figure Description

[0013] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A three-dimensional structural diagram of the hot water supply device provided in the embodiment of the present invention in the working state; Figure 2 This is a schematic diagram of the structure of the water outlet unit in the storage position according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the water outlet unit when it rises to the working position according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the water outlet in the unfolded state according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the water outlet unit provided in an embodiment of the present invention when it descends to maintain a preset safe distance; Figure 6 A bottom view of the hot water supply device (hidden base) provided in an embodiment of the present invention, to show the installation position of the first detection unit; Figure 7 This is a cross-sectional schematic diagram of the structure of the water outlet in the folded state provided in an embodiment of the present invention, showing the transmission connection structure between the second drive unit and the water outlet; Figure 8 for Figure 7 A cross-sectional view of the structure when the center outlet nozzle is in the deployed state; Figure 9 This is a cross-sectional view of the water outlet unit when it rises to the working position according to an embodiment of the present invention. Figure 10 for Figure 9 A magnified view of a section at point A in the middle; Figure 11 A cross-sectional schematic diagram of the water outlet unit descending to maintain a preset safe distance according to an embodiment of the present invention; Figure 12 for Figure 11 A magnified view of a section at point B in the middle; Figure 13 This is a cross-sectional view of the structure of the water outlet containing the second detection unit when it is in a folded state, according to an embodiment of the present invention. Figure 14 This is a cross-sectional view of the structure of the water outlet with the second detection unit in the deployed state, provided in an embodiment of the present invention. Figure 15 This is a cross-sectional schematic diagram of the overall structure of the hot water supply equipment in the water outlet state according to an embodiment of the present invention.

[0014] The following numbers are labeled in the diagram: 100, base; 101, central armrest box; 200, water outlet body; 210, guide seat; 300, water outlet nozzle; 310, water outlet; 400, first drive unit; 410, first drive motor; 420, linear drive assembly; 430, guide assembly; 440, upper positioning seat; 450, lower positioning seat; 500, second drive unit; 510, second drive motor; 520, first gear; 530, second gear; 600, first magnet; 601, first magnetic field sensor; 700, second magnet; 701, second magnetic field sensor; 800, first detection unit; 900, liquid level sensing unit. Detailed Implementation

[0015] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] Example 1 like Figures 1 to 15As shown, this embodiment provides a vehicle-mounted water heater, which is integrated and installed on the center console 101 of a vehicle. The vehicle-mounted water heater includes a base 100, a water outlet unit, a first drive unit 400, a first detection unit 800, a second drive unit 500, a second detection unit, a liquid level sensing unit 900, and a control unit.

[0018] Preferably, refer to, as Figure 2-4 As shown, the base 100 is an integrated module installed within the center armrest box 101, with an opening at the top. The base 100 serves as the mounting base for various functional components, and its interior can accommodate water supply components, heating components, drive components, and related control components. By placing the entire vehicle-mounted water heater inside the center armrest box 101, the entire unit can be hidden within the armrest box when not in operation, thereby reducing its impact on interior space and helping to maintain the flatness of the armrest box's appearance and the overall integrity of the interior design.

[0019] Preferably, refer to, as Figure 1 As shown, the water outlet unit has a storage position and a working position, including a water outlet body 200 and a water outlet nozzle 300 rotatably connected to the water outlet body 200. The water outlet body 200 can move up and down relative to the base 100. The water outlet nozzle 300 is disposed on the water outlet body 200 and communicates with the water outlet passage inside the vehicle-mounted water heater. The water outlet nozzle 300 is provided with a water outlet 310.

[0020] More preferably, in this embodiment, reference is made to... Figure 2 As shown, when the water outlet unit is in the storage position, its top end is flush with or lower than the top surface of the base, so that the vehicle-mounted water heater does not protrude from the surface of the armrest box when not in use; see reference. Figure 3 As shown, in the working position, the water outlet body 200 extends at least partially through the base opening and out of the base 100, so that the water outlet 300 is capable of unfolding and dispensing liquid.

[0021] Preferably, refer to, as Figure 4 , Figure 5 As shown, the first driving unit 400 is used to drive the water outlet unit to move up and down, so that the water outlet unit can switch back and forth between the storage position and the working position.

[0022] More preferably, in this embodiment, reference is made to... Figure 6As shown, the first drive unit 400 includes a first drive motor 410 and a linear drive assembly 420 that is driveably connected to the output shaft of the first drive motor 410. The linear drive assembly 420 is arranged vertically, and the water outlet body 200 is provided with a motion conversion part that is threadedly engaged with the linear drive assembly 420. Thus, when the first drive motor 410 drives the linear drive assembly 420 to rotate, its rotational motion can be converted into linear lifting motion of the water outlet body 200 through the motion conversion part.

[0023] Further preferably, to improve the stability of the water outlet body 200 during the lifting and lowering process, a guide component 430 is also provided in this embodiment. The extending direction of the guide component 430 is parallel to the axial direction of the linear drive component 420. The water outlet body 200 is provided with a guide seat 210, and the guide seat 210 has a guide hole that slides with the guide component 430. The guide component 430 guides the lifting and lowering movement of the water outlet unit, thereby reducing swaying or jamming during the lifting and lowering process.

[0024] In one specific embodiment, reference is made to, as follows Figure 1 As shown, there are two guide components 430, which are symmetrically arranged on both sides of the linear drive component 420. The upper and lower ends of the base 100 are respectively provided with an upper positioning seat 440 and a lower positioning seat 450 for fixing the ends of the guide components 430.

[0025] Preferably, the second drive unit 500 is disposed on the water outlet body 200 and is pulsatorically connected to the water outlet nozzle 300, for driving the water outlet nozzle 300 to rotate relative to the water outlet body 200, so that the water outlet nozzle 300 has a folded state and an unfolded state. (See reference...) Figure 7 , Figure 8 As shown, specifically, in the folded state, the water outlet 300 is folded and stored in the receiving groove opened on the water outlet body 200; in the unfolded state, the water outlet 300 is rotated to a position away from the water outlet body 200 to enable liquid dispensing.

[0026] More preferably, refer to, as Figure 7 , Figure 8 As shown, the second drive unit 500 includes a second drive motor 510 and a transmission assembly. The transmission assembly includes a first gear 520 fixedly connected to the output shaft of the second drive motor 510, and a second gear 530 fixedly mounted on the side of the spout 300. The first gear 520 and the second gear 530 mesh with each other. Driven by the second drive motor 510, the spout 300 can rotate and switch between a folded state and an unfolded state.

[0027] As an optional embodiment, when the spout 300 is in the folded state, the outer surface of the spout 300 is flush with or substantially flush with the outer contour of the water outlet body 200, so as to reduce the space occupied in the storage state; in this embodiment, the spout 300 preferably adopts an approximately 90° folding and flipping structure, that is, in the folded state, the water outlet 310 is arranged to intersect with the axial direction of the water outlet body 200.

[0028] As an optional embodiment, in the unfolded state, the water outlet 300 includes at least one water outlet state, which is formed by flipping the water outlet 300 to a preset angle. When the water outlet 300 is flipped to the water outlet state, the water outlet 310 is parallel or substantially parallel to the axial direction of the water outlet body 200, so as to facilitate water injection into the liquid container located below.

[0029] Preferably, the second detection unit is used to detect whether the water outlet 300 is in a folded or unfolded state. The second detection unit is electrically connected to the control unit, and the control unit enables or disables the water outlet function according to the state detected by the second detection unit.

[0030] More preferably, in this embodiment, the second detection unit specifically includes: The first detection group is used to detect whether the water outlet 300 is in a folded state. The control unit is configured to disable the water outlet function when the water outlet 300 is in a folded state according to the detection signal of the first detection group. The second detection group is used to detect whether the water outlet 300 is in the water outlet state. The control unit is configured to enable the water outlet function when the water outlet 300 is in the unfolded state according to the detection signal of the second detection group.

[0031] More preferably, the first detection group and / or the second detection group includes a magnet and a magnetic field sensor that cooperates with the magnet; the magnet is fixedly disposed on the water outlet, and the magnetic field sensor is preferably a Hall switch or a Hall sensor. By setting two detection groups in different positions, they can respectively correspond to the closed and open positions of the water outlet 300, thereby improving the reliability of the status judgment.

[0032] Preferably, refer to, as Figures 9-12 As shown, the first detection unit 800 is disposed on the water outlet body 200 and is used to detect the highest point position of the liquid container. More preferably, the first detection unit 800 is disposed on the water outlet body 200 near the hinge axis of the water outlet 300, so that the first detection unit 800 is located at or near the lateral extension line of the water outlet 300.

[0033] In this embodiment, the first detection unit 800 may employ an infrared sensor or an infrared sensor array to detect the top position of the liquid container located below the water outlet area, such as the edge of a cup, by emitting and receiving reflected signals. Based on the detected highest point position of the liquid container, the control unit controls the first drive unit 400 to adjust the extension height of the water outlet unit, ensuring that the water outlet 310 of the spout 300 maintains a preset safe dispensing distance from the top position. This safe dispensing distance can be set according to product design requirements to minimize the drop between the water outlet and the cup rim without contacting the container, thus reducing the risk of hot water splashing.

[0034] Preferably, the vehicle-mounted water heater further includes a flow control valve and a liquid level sensing unit 900. The flow control valve is disposed on the water outlet passage of the water heater and is used to control the opening and closing of the water outlet passage. The liquid level sensing unit 900 is disposed on the water outlet 300 and is used to detect the liquid level in the water receiving container. The liquid level sensing unit 900 is electrically connected to the control unit, and the control unit controls the opening and closing of the flow control valve based on the liquid level.

[0035] More preferably, in this embodiment, the liquid level sensing unit 900 preferably adopts an infrared sensing structure, which identifies the liquid level height in the container by detecting the cup body obstruction and / or the change in the reflection of the liquid surface on the detection light; when the liquid level reaches a preset threshold, the control unit controls the flow control valve to close, and can further close the heating circuit or put the heating module into standby mode, thereby realizing automatic stop of water dispensing.

[0036] For reference Figure 15 As shown, the working process of the vehicle-mounted water heater described in this embodiment is as follows: When the user issues a start command, the control unit first controls the first drive unit 400 to move, causing the water outlet unit to rise from the storage position to the working position. Subsequently, the control unit controls the second drive unit 500 to move, causing the water outlet 300 to flip from the folded state to the unfolded state. During the flipping process, the second detection unit detects the state of the water outlet 300; when the second detection unit detects that the water outlet 300 has reached the water outlet state, the control unit determines that the current state conditions for allowing water to flow are met.

[0037] Subsequently, the first detection unit 800 detects the water receiving container placed below the water outlet area to obtain the position of the highest point of the water receiving container. Based on the detection result, the control unit controls the first drive unit 400 to adjust the height of the water outlet body 200 so that the water outlet 310 maintains a preset safe distance from the top of the water receiving container. After the height alignment is completed, the control unit controls the water outlet passage to open, and hot water flows into the water receiving container through the water outlet 310.

[0038] During water discharge, the liquid level sensing unit 900 continuously monitors the liquid level in the receiving container. When the liquid level reaches a preset stop condition, the control unit controls the flow control valve to close, stopping the water discharge.

[0039] Preferably, after the water is discharged, the control unit can further control the second drive unit 500 to flip the water outlet 300 back to the folded state, and control the first drive unit 400 to lower the water outlet body 200 to the storage position, thereby restoring the hidden storage state.

[0040] Therefore, the vehicle-mounted water heater of this embodiment can realize functions such as hidden storage of the water outlet unit, automatic lifting and lowering, automatic flipping of the water outlet, adaptive adjustment of the height of the water receiving container, and automatic stopping of water dispensing after the liquid level reaches the set value, making it suitable for hot water supply scenarios in the confined space of a vehicle.

[0041] Example 2 This embodiment is a further explanation based on Embodiment 1, and further describes the specific structure of the first driving unit 400 and the guide component 430.

[0042] In this embodiment, the linear drive assembly 420 is preferably a lead screw, and the output shaft of the first drive motor 410 is coaxially connected to the lead screw or connected via a coupling. A threaded sleeve or nut seat is provided on the water outlet body 200, and the threaded sleeve or nut seat is threadedly engaged with the lead screw. High-precision lifting control can be achieved by rotating the lead screw and moving the water outlet body 200 along the lead screw axis.

[0043] Preferably, the guide assembly 430 consists of two parallel guide rods symmetrically distributed on both sides of the lead screw. The guide seats 210 can be two or more, each slidingly engaging with its corresponding guide rod. The upper positioning seat 440 and lower positioning seat 450 can be metal positioning components or reinforcing structures to improve the installation strength and overall rigidity of the guide assembly 430. The lead screw drive, in conjunction with the dual guide rods, further enhances the straightness and stability of the water outlet body 200 during its lifting and lowering process.

[0044] Example 3 This embodiment is a further explanation based on Embodiment 1, and further describes the structure of the second detection unit.

[0045] In this embodiment, the first detection group and the second detection group are respectively set at different positions of the water outlet body 200, wherein the first detection group corresponds to the folded position of the water outlet 300, and the second detection group corresponds to the unfolded water outlet position of the water outlet 300.

[0046] More preferably, refer to, as Figure 13 As shown, the first detection group includes a first magnet 600 and a first magnetic field sensor 601 that cooperates with the first magnet 600; the first magnet 600 is fixedly disposed on the water outlet 300 and rotates synchronously with the water outlet 300. The first magnetic field sensor 601 is fixedly mounted on the water outlet unit, and its installation position is such that the first magnet 600 enters the effective magnetic field sensing range of the first magnetic field sensor 601 only when the water outlet 300 is rotated to the folded state.

[0047] More preferably, refer to, as Figure 14 As shown, the second detection group includes a second magnet 700 and a second magnetic field sensor 701 that cooperates with the second magnet 700; the second magnet 700 is fixedly mounted on the water outlet 300 and rotates synchronously with the water outlet 300. The second magnetic field sensor 701 is fixedly mounted on the water outlet unit, and its installation position is such that the second magnet 700 enters the effective magnetic field sensing range of the second magnetic field sensor 701 only when the water outlet 300 is rotated to the water outlet state.

[0048] This setting allows for separate detection of the 300 water outlet's closed and working states.

[0049] Example 4 This embodiment is a further explanation based on Embodiment 1, which further describes the detection method of the first detection unit 800 and the liquid level sensing unit 900.

[0050] In this embodiment, the first detection unit 800 can be a detection module composed of an infrared transmitter and an infrared receiver, or an array structure composed of multiple infrared detection points, used to detect the top contour of the water receiving container. The control unit can determine the highest point position of the water receiving container based on the signal strength, obstruction, or reflection time fed back from each detection point, and calculate the target height that the water outlet body 200 needs to be adjusted.

[0051] The liquid level sensing unit 900 can also employ an infrared detection structure, forming a liquid level detection area below the water outlet 300. By detecting changes in the reflected signal during the rise of the liquid level, the control unit can determine whether the current liquid level has reached a preset liquid level threshold. When the threshold is reached, water flow is stopped. If necessary, the control unit can also combine water flow duration, estimated flow rate, or abnormal signals as auxiliary conditions for liquid level judgment to improve system reliability.

[0052] Example 5 A control method for a vehicle-mounted water heater includes the following steps: S1. Upon receiving the start command, control the first drive unit 400 to raise the water outlet unit from the storage position to the working position, and control the second drive unit 500 to flip the water outlet 300 from the folded state to the unfolded state. S2. The first detection unit 800 detects the highest point of the liquid container, and controls the first drive unit 400 to adjust the height of the water outlet unit according to the detection result, so that the water outlet 310 of the water outlet 300 maintains a preset safe distance from the top position. S3. After completing the height alignment, control the flow control valve to discharge water, and monitor the liquid level height through the liquid level sensing unit 900. S4. When the liquid level is detected to have reached the preset liquid level stop condition, the flow control valve is closed to stop the water flow.

[0053] In some embodiments, the control method may further include: after water dispensing is completed, controlling the second drive unit 500 to flip the water outlet 300 back to the folded state, and controlling the first drive unit 400 to lower the water dispensing unit to the storage position.

[0054] Example 6 An automobile includes the on-board water heater described in the above embodiments.

[0055] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A vehicle-mounted water heater, characterized in that, The vehicle-mounted water heater is integrated and installed on the center console of the vehicle. The vehicle-mounted water heater includes: The base (100) is constructed as an integrated module installed in the central armrest box (101) and has an opening at the top; The water outlet unit has a storage position and a working position. The water outlet unit includes a water outlet body (200) that can move up and down relative to the base (100) and a water outlet nozzle (300) that is rotatably connected to the water outlet body (200). The first drive unit (400) is configured to drive the water outlet unit to move up and down so that the water outlet unit can switch back and forth between the storage position and the working position; wherein, in the storage position, the top of the water outlet unit is flush with or lower than the top surface of the base; in the working position, the water outlet body (200) extends at least partially out of the base (100) to meet the liquid discharge conditions. The first detection unit (800) is installed on the water outlet body (200) and is used to detect the highest point of the liquid container; The control unit, electrically connected to the first drive unit (400) and the first detection unit (800) respectively, is configured as follows: In response to the water discharge command, the first drive unit (400) is controlled to drive the water discharge body (200) to switch to the working position; Based on the detected highest point position of the liquid container, the first drive unit (400) is controlled to adjust the extension height of the water outlet unit so that the water outlet (310) of the water outlet (300) maintains a preset safe liquid outlet distance from the top position.

2. The vehicle-mounted water heater according to claim 1, characterized in that, The first detection unit (800) is located on the water outlet body (200) near the hinge axis of the water outlet (300) so that the first detection unit (800) is located at or near the lateral extension line of the water outlet (300).

3. The vehicle-mounted water heater according to claim 1, characterized in that, The first drive unit (400) includes a first drive motor (410) and a linear drive assembly (420) that is connected to the output shaft of the first drive motor (410). The linear drive assembly (420) is arranged in a vertical direction, and the water outlet body (200) is provided with a motion conversion part that is threadedly engaged with the linear drive assembly (420). The rotational motion of the linear drive assembly (420) is converted into the linear lifting motion of the water outlet unit through the motion conversion part.

4. The vehicle-mounted water heater according to claim 3, characterized in that, Also includes: The guide assembly (430) extends in a direction parallel to the axis of the linear drive assembly (420); the water outlet body (200) is provided with a guide seat (210), and the guide seat (210) is provided with a guide hole that slides with the guide assembly (430). The guide assembly (430) guides the lifting and lowering movement of the water outlet unit.

5. The vehicle-mounted water heater according to claim 4, characterized in that, The number of guide components (430) is two, and they are symmetrically arranged on both sides of the linear drive component (420). The upper end and lower end of the base (100) are respectively provided with an upper positioning seat (440) and a lower positioning seat (450) for fixing the ends of the guide components (430).

6. The vehicle-mounted water heater according to claim 1, characterized in that, The water outlet body (200) is provided with a second drive unit (500), which is connected to the water outlet nozzle (300) for driving the water outlet nozzle (300) to rotate relative to the water outlet body (200) so that the water outlet nozzle has a folded state and an unfolded state; wherein, in the folded state, the water outlet nozzle (300) is folded and stored in the receiving groove opened on the water outlet body (200); in the unfolded state, the water outlet nozzle (300) rotates away from the water outlet body (200) to meet the liquid dispensing conditions.

7. The vehicle-mounted water heater according to claim 6, characterized in that, In the folded state, the outer surface of the water outlet (300) is flush with the outer contour of the water outlet body (200), and the water outlet (310) is arranged to intersect with the axial direction of the water outlet body (200). In the unfolded state, the water outlet (300) includes at least one water outlet state, which is formed by flipping the water outlet (300) to a preset angle, so that the water outlet (310) has a water outlet direction parallel to the axial direction of the water outlet body (200), which facilitates water injection into the liquid container.

8. The vehicle-mounted water heater according to claim 6, characterized in that, The second drive unit (500) includes a second drive motor (510) and a transmission assembly; the transmission assembly includes a first gear (520) fixedly connected to the output shaft of the second drive motor (510) and a second gear (530) fixedly installed on the side of the water outlet (300), wherein the first gear (520) meshes with the second gear (530).

9. The vehicle-mounted water heater according to claim 6, characterized in that, It also includes a second detection unit for detecting whether the water outlet (300) is in the folded state or the unfolded state; The second detection unit is electrically connected to the control unit, which is further configured to enable or disable the water outlet function according to the state detected by the second detection unit.

10. The vehicle-mounted water heater according to claim 7, characterized in that, The second detection unit includes: The first detection group is used to detect whether the water outlet (300) is in the folded state, and the control unit is configured to disable the water outlet function when the water outlet (300) is in the folded state according to the detection signal of the first detection group; The second detection group is used to detect whether the water outlet (300) is in the water outlet state. The control unit is configured to enable the water outlet function when the water outlet (300) is in the unfolded state according to the detection signal of the second detection group. The first and second detection groups are located in different positions.

11. The vehicle-mounted water heater according to claim 10, characterized in that, The first detection group includes a first magnet (600) and a first magnetic field sensor (601) that cooperates with the first magnet (600); the first magnet (600) is fixedly disposed on the water outlet (300), the first magnetic field sensor (601) is fixedly disposed on the water outlet unit, and its installation position is such that the first magnet (600) enters the effective magnetic field sensing range of the first magnetic field sensor (601) only when the water outlet (300) is rotated to the folded state.

12. The vehicle-mounted water heater according to claim 10, characterized in that, The second detection group includes a second magnet (700) and a second magnetic field sensor (701) that cooperates with the second magnet (700); the second magnet (700) is fixedly disposed on the water outlet (300), and the second magnetic field sensor (701) is fixedly disposed on the water outlet unit, and its installation position is such that the second magnet (700) enters the effective magnetic field sensing range of the second magnetic field sensor (701) only when the water outlet (300) is rotated to the water outlet state.

13. The vehicle-mounted water heater according to claim 1, characterized in that, Also includes: A flow control valve is installed on the water outlet passage of the water heater; A liquid level sensing unit (900) is disposed on the water outlet (300) and is used to detect the liquid level in the water receiving container; The liquid level sensing unit (900) is electrically connected to the control unit, which is further configured to control the start and stop of the flow control valve based on the liquid level height.

14. A control method for a vehicle-mounted water heater as described in any one of claims 1 to 13, characterized in that, Includes the following steps: Upon receiving the start command, the first drive unit (400) is controlled to raise the water outlet unit from the storage position to the working position, and the second drive unit (500) is controlled to flip the water outlet (300) from the folded state to the unfolded state. The second detection unit detects the state of the water outlet (300). When the second detection unit detects that the water outlet (300) has reached the water outlet state, it determines that the current state condition for allowing water to be discharged is met. The first detection unit (800) detects the highest point of the liquid container, and controls the first drive unit (400) to adjust the height of the water outlet unit according to the detection result, so that the water outlet (310) of the water outlet (300) maintains a preset safe distance from the top position; After the height alignment is completed, the flow control valve is controlled to discharge water, and the liquid level height is monitored by the liquid level sensing unit (900); When the liquid level is detected to have reached the preset liquid level stop condition, the flow control valve is closed to stop the water flow.

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