Vehicle-mounted water dispenser
The water circuit design, which combines multi-port connectors and solenoid valves, solves the problem of water pipes freezing and cracking in vehicle-mounted water dispensers during winter, achieving a stable supply of hot and cold water and antifreeze function for water pipes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANGFEN COUNTY JIAMEIXI INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-06-19
AI Technical Summary
In winter, the water pipes of existing vehicle-mounted water dispensers are prone to freezing and bursting or rupturing due to the expansion of frozen water in low-temperature environments, and there is a lack of effective drainage or insulation measures.
The water circuit design, which combines multi-port connectors and solenoid valves, enables the switching between cold and hot water through the cooperation of cold water pumps, cold water valves, hot water pumps, and return water pumps. During the return water process, residual water is pumped back to prevent water pipes from freezing and cracking.
It effectively prevents water pipes from freezing and cracking in low-temperature environments, ensuring that the water dispenser can work normally in winter and providing a stable supply of hot and cold water.
Smart Images

Figure CN224375427U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle-mounted home appliance technology, and in particular to a vehicle-mounted water dispenser. Background Technology
[0002] In today's fast-paced life, cars have become an essential means of transportation for daily travel. As people's demands for travel quality increase, the diversity and functionality of in-vehicle devices are also growing. In-vehicle water dispensers, as devices that meet the drinking water needs of passengers, have a huge market potential. During long drives, people need access to drinking water at a suitable temperature at any time to maintain body hydration and a comfortable driving experience. However, existing in-vehicle water dispensers have shortcomings in many aspects, failing to fully meet users' expectations for convenient, safe, and stable drinking water. Technological innovation is urgently needed to improve these issues and enhance the performance and user experience of in-vehicle water dispensers.
[0003] Currently, most car water dispensers on the market employ relatively simple structures and technologies. For cooling, some car water dispensers utilize semiconductor cooling technology, achieving cooling through the temperature difference effect generated when a semiconductor material is energized. One side of the cooling element absorbs heat, while the other side dissipates heat. Heat sinks and fans are used to expel the heat, thereby lowering the temperature of the water in contact with the cooling element. For heating, resistance wire heating is commonly used. A resistance wire is wound around the water container or placed at the bottom. When current passes through the resistance wire, it heats up, raising the water temperature through heat transfer. Temperature control typically relies on a simple thermostat. When the water temperature reaches the set temperature, the thermostat cuts off the power to stop heating; the power is turned back on when the water temperature drops.
[0004] Existing vehicle-mounted water dispensers have serious shortcomings in dealing with low-temperature winter environments. In cold weather, especially when the temperature drops below zero degrees Celsius, the residual water in the pipes is prone to freezing. Because water expands when it freezes, most existing water dispenser pipes are not specially designed for this situation and lack effective drainage or insulation measures, making the pipes extremely susceptible to freezing, bursting, or rupturing due to the expansion force of the ice. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a vehicle-mounted water dispenser, which aims to improve the serious defects of existing vehicle-mounted water dispensers in dealing with low-temperature environments in winter, especially the problem that the residual water in the water pipes is prone to freezing when the temperature drops to below zero degrees Celsius.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a vehicle-mounted water dispenser, comprising a water tank, one end of which is fixedly connected to the inner wall of the water tank, and the other end of which is fixedly connected to a cold water pump. The cold water pump is fixedly connected to a cold water valve via a water pipe, and the cold water valve is fixedly connected to a four-way connector via a water pipe. Each of the four ends of the four-way connector is fixedly connected to a water pipe.
[0007] Furthermore, the four-way connector and the three-way solenoid valve are fixedly connected through water pipe one, the three-way solenoid valve is fixedly connected to one end of water pipe three, the other end of water pipe three is fixedly connected to a water tank, the water tank is fixedly connected to the hot water pump through water pipe three, and the hot water pump is fixedly connected to the four-way connector through water pipe one.
[0008] Furthermore, the four-way connector is fixedly connected to the return water pump via a water pipe, and the return water pump is fixedly connected to one end of the three-way conversion connector via a water pipe.
[0009] Furthermore, the four-way connector is disposed on the outer wall of the three-way conversion connector, one end of the three-way conversion connector is fixedly connected to one end of the water pipe, and the other end of the water pipe is fixedly connected to the water outlet.
[0010] Furthermore, the hot water pump is installed on the outer wall of the three-way adapter, and the other end of the three-way adapter is fixedly connected to one end of the second water pipe, and the other end of the second water pipe is fixedly connected to one end of the three-way solenoid valve.
[0011] Furthermore, the four-way connector is respectively installed at one end of the cold water valve, the three-way solenoid valve, the hot water pump, and the return water pump.
[0012] Furthermore, the water pipe is configured as six.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, a vehicle-mounted water dispenser is used. When cold water is obtained by using the vehicle-mounted water dispenser, the cold water pump starts to draw water from the water tank. The cold water first flows through the cold water valve, which is controlled to open and close according to the command. After opening, it enters the water pipe. Then, the water flows to the four-way connector and guides the water into the three-way solenoid valve. The three-way solenoid valve switches the water path, so that the water flows through another water pipe and the three-way conversion connector, and finally flows out from the outlet pipe, which is the cold water.
[0015] 2. In this invention, to obtain hot water, the cold water pump still draws water from the tank, through the cold water valve and water pipe to the four-way connector and three-way solenoid valve. At this time, the three-way solenoid valve changes the flow direction, sending the water into the water tank for storage. The hot water pump heats the water, and the hot water, assisted by the return water pump, flows out from the outlet through the water pipe and the three-way conversion connector. After water is collected, the return water pump pumps back the residual water to the water tank to prevent the water pipes from freezing and cracking in winter. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the planar structure of a vehicle-mounted water dispenser proposed in this utility model.
[0017] Legend:
[0018] 1. Water tank; 2. Cold water pump; 3. Cold water valve; 4. Four-way connector; 5. Three-way solenoid valve; 6. Water tank; 7. Hot water pump; 8. Return water pump; 9. Three-way adapter; 10. Water outlet; 11. Water pipe one; 12. Water pipe two; 13. Water pipe three; 14. Water pipe four; 15. Water pipe five. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Reference Figure 1This utility model provides an embodiment of a vehicle-mounted water dispenser, including a water tank 1. A water pipe 14 is fixedly connected to one end of the inner wall of the water tank 1, and a cold water pump 2 is fixedly connected to the other end of the water pipe 14. The cold water pump 2 is responsible for drawing water from the water tank 1, providing initial power for the water flow. The cold water pump 2 is fixedly connected to a cold water valve 3 via a water pipe 11. The cold water valve 3 is fixedly connected to a four-way connector 4 via the water pipe 11. Each of the four ends of the four-way connector 4 is fixedly connected to a water pipe 11, integrating multiple water flow channels to rationally distribute and guide the water source, ensuring that cold and hot water flow along a set path. The four-way connector 4 is fixedly connected to a three-way solenoid valve 5 via the water pipe 11. The water pipe 11 serves as the main water supply pipeline, responsible for the supply and return of cold and hot water. In the water supply process, a three-way solenoid valve 5 is fixedly connected to one end of water pipe 313, and the other end of water pipe 313 is fixedly connected to a water tank 6. Water tank 6 stores water for heating and utilizes its excellent insulation properties to maintain the hot water temperature, providing a stable reserve for hot water supply. Water tank 6 is fixedly connected to hot water pump 7 via water pipe 313. During the hot water supply process, water pipe 313 connects the three-way solenoid valve 5 to water tank 6, allowing water to enter and be stored in water tank 6 for heating. Hot water pump 7 is fixedly connected to four-way connector 4 via water pipe 11. Four-way connector 4 is fixedly connected to return water pump 8 via water pipe 11. Return water pump 8 is fixedly connected to one end of three-way conversion connector 9 via water pipe 11. Four-way connector 4 is located on the outer wall of three-way conversion connector 9. One end of the three-way adapter 9 is fixedly connected to one end of water pipe 15. In the cold and hot water supply process, the three-way adapter 9 acts as a transition and guide for the water flow, ensuring that the water flows smoothly to outlet pipe 15. Simultaneously, it participates in the return path of residual water during the return process. The other end of water pipe 15 is fixedly connected to outlet 10. Outlet pipe 15 delivers the treated cold and hot water to outlet 10, completing the final stage of the cold and hot water supply. A hot water pump 7 is installed on the outer wall of the three-way adapter 9. The other end of the three-way adapter 9 is fixedly connected to one end of water pipe 12. In the cold water supply process, water pipe 12 connects the three-way solenoid valve 5 to the three-way adapter 9, allowing cold water to flow smoothly to outlet pipe 15. The other end of water pipe 12 is fixedly connected to a three-way solenoid valve. At the other end of the solenoid valve 5, the four-way connector 4 is equipped with a cold water valve 3. The cold water valve 3 controls the flow of water in the cold water process, ensuring that water only enters the subsequent cold water supply circuit when a cold water command is issued. The three-way solenoid valve 5 switches the water flow direction according to the cold and hot water supply commands, deciding whether the water flows directly to the outlet pipe to become cold water or enters the water tank 6 to be heated into hot water. The hot water pump 7 heats the water in the water tank 6, converting cold water into hot water. It is the key heating component for realizing hot water supply. At one end of the return water pump 8, after the return water pump 8 finishes receiving water, it pumps back and stores the residual water in the outlet pipe 5 15 and the water pipe 11 to prevent the water pipes from freezing and bursting or rupturing in winter due to the expansion of water freezing, ensuring the safe operation of the water system in winter.The water pipe 11 is configured as six.
[0021] Specifically, when cold water is needed from the vehicle-mounted water dispenser, the cold water pump 2 is inserted into the water tank 1 through water pipe 4 14, drawing water out using suction. The water then passes through the cold water valve 3, which opens upon command, connecting the water to water pipe 1 11 and then delivering it to the four-way connector 4. The four-way connector 4, by integrating the water flow channels, directs the water back through water pipe 1 11 to the three-way solenoid valve 5. The three-way solenoid valve 5, by switching its internal pathway, allows the water to pass through water pipe 2 12 and directly through the three-way conversion connector 9 to the outlet pipe 5 15, subsequently flowing out from the outlet 10, achieving the effect of cold water flow. When hot water is needed, the cold water pump 2 again draws water from the water tank 1 through water pipe 4 14, connecting the cold water pump 2 to water pipe 1 11 via the cold water valve 3. After being connected, the water is delivered to the four-way connector 4. The four-way connector 4 sends the water source to the three-way solenoid valve 5 through the water pipe 11. The three-way solenoid valve 5 switches the water source to be delivered to the water tank 6 through the water pipe 3 13 for storage. The hot water pump 7 connects to the water pipe 3 13 and the water tank 6 to heat the water source in the water tank 6 into hot water. The hot water is then delivered back to the four-way connector 4 through the water pipe 11. Through the water pipe 11, the return water pump 8 delivers the hot water to the three-way conversion connector 9. Finally, the hot water flows to the outlet 10 through the outlet pipe 5 15 to achieve the effect of hot water flowing out. After the water is received, the return water pump 8 pumps back the residual water source in the outlet pipe 5 15 and the water pipe 11, and returns it to the water tank 6 through the four-way connector 4 and the three-way solenoid valve 5 for storage, thus achieving the effect of preventing the water pipe from freezing and bursting or breaking in winter.
[0022] Working principle: When a vehicle-mounted water dispenser needs to dispense cold water, the cold water pump 2 draws water from the water tank 1 through water pipe 4 14, and delivers it to the four-way connector 4 via the cold water valve 3 and water pipe 11. The four-way connector 4 then delivers the water to the three-way solenoid valve 5 via water pipe 11. The three-way solenoid valve 5 directly delivers the water to the outlet pipe 15 via the three-way adapter 9 through water pipe 2 12, and then the water flows out through the outlet 10. The water flowing out is cold water. When hot water is needed, the cold water pump 2 draws water from the water tank 1 through water pipe 4 14, and delivers it to the four-way connector 4 via the cold water valve 3 and water pipe 11. The four-way connector 4 then delivers the water to the outlet pipe 11 via water pipe 10. Inside the three-way solenoid valve 5, water is transported to the water tank 6 for storage via water pipe 3 13. The hot water pump 7 heats the water source into hot water by connecting to water pipe 3 13 and water tank 6, and then transports it back to the four-way connector 4 through water pipe 1 11. Subsequently, it is transported to the three-way conversion connector 9 through water pipe 1 11 and return water pump 8. Finally, it flows to the outlet 10 through outlet pipe 5 15, making the outflowing water hot. After the water is used up, the return water pump 8 pumps back the water source remaining in outlet pipe 5 15 and water pipe 1 11, and then returns it to the water tank 6 for storage through four-way connector 4 and three-way solenoid valve 5. This prevents the water pipes from freezing and bursting or rupturing when the winter temperature reaches below zero degrees Celsius.
[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A vehicle-mounted water dispenser comprising a water tank (1), characterized in that: The inner wall of the water bucket (1) is fixedly connected to one end of a water pipe (14), and the other end of the water pipe (14) is fixedly connected to a cold water pump (2). The cold water pump (2) and the cold water valve (3) are fixedly connected through a water pipe (11). The cold water valve (3) and the four-way connector (4) are fixedly connected through a water pipe (11). All four ends of the four-way connector (4) are fixedly connected to a water pipe (11).
2. The vehicle-mounted water dispenser according to claim 1, characterized in that: The four-way connector (4) and the three-way solenoid valve (5) are fixedly connected through water pipe one (11). The three-way solenoid valve (5) is fixedly connected to one end of water pipe three (13). The other end of water pipe three (13) is fixedly connected to a water tank (6). The water tank (6) and the hot water pump (7) are fixedly connected through water pipe three (13). The hot water pump (7) and the four-way connector (4) are fixedly connected through water pipe one (11).
3. The vehicle-mounted drinking water machine according to claim 2, characterized in that: The four-way connector (4) is fixedly connected to the return water pump (8) through a water pipe (11), and the return water pump (8) is fixedly connected to one end of the three-way conversion connector (9) through a water pipe (11).
4. The vehicle-mounted drinking water machine according to claim 2, characterized in that: The four-way connector (4) is set on the outer wall of the three-way conversion connector (9). One end of the three-way conversion connector (9) is fixedly connected to one end of the water pipe five (15), and the other end of the water pipe five (15) is fixedly connected to the water outlet (10).
5. The vehicle-mounted drinking water machine according to claim 2, characterized in that: The hot water pump (7) is installed on the outer wall of the three-way conversion joint (9). The other end of the three-way conversion joint (9) is fixedly connected to one end of the second water pipe (12). The other end of the second water pipe (12) is fixedly connected to one end of the three-way solenoid valve (5).
6. The vehicle-mounted drinking water machine according to claim 1, characterized in that: The four-way connector (4) is respectively installed at one end of the cold water valve (3), the three-way solenoid valve (5), the hot water pump (7), and the return water pump (8).
7. The vehicle-mounted drinking water machine according to claim 2, characterized in that: The water pipe 1 (11) is configured as six.