A vehicle-mounted special water heater
Patent Information
- Application Number
- CN202521465920.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-14
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-07-14
AI Technical Summary
然而,在天气转冷时,水罐内的冷水作为驾驶人员的日常用水,水温较为不适,过冷的水会给驾驶人员的日常生活带来诸多不便,影响他们在长途货运过程中的舒适度和体验感
[0016] This invention effectively solves the problem of truck drivers using low-temperature water in cold environments through an innovative water diversion and dual-mode heating design. Traditional truck water tanks can only provide cold water, resulting in a poor user experience in winter. This patent uses a three-way connector to divert the water outlet to an electric heating device and a water heat exchanger, forming a composite heating system of "electric heating" + "engine waste heat + electric auxiliary heating".
Smart Images

Figure CN224771735U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of truck-mounted equipment, and in particular to a truck-mounted water heater. Background Technology
[0002] A truck water tank is a crucial component of a truck. It's typically a sealed container with a certain volume, usually made of sturdy and durable metal or high-strength plastic to withstand the bumps and various complex environments encountered during truck operation. The tank primarily stores water and plays several key roles during truck operation, including cooling brake drums, providing water for firefighting, and meeting the daily water needs of the driver. Long-haul trucks often require drivers to spend several days on the road. To accommodate different water needs, truck water tanks generally have two outlets. One outlet connects to the brake drum cooling system to spray water to cool the brake drums when they overheat, preventing brake failure; it also provides water for firefighting in emergencies. The other outlet is specifically for the driver's daily use, such as washing and drinking. However, in cold weather, the cold water in the tank is unsuitable for the driver's daily use, causing inconvenience and affecting their comfort and experience during long-haul trucking. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a vehicle-mounted water heater.
[0004] The technical problem to be solved by this utility model is achieved by the following technical solution:
[0005] A vehicle-mounted water heater includes a water tank body, with a water outlet pipe connected to one side of the water tank body. The water outlet pipe is equipped with a switch valve. The end of the water outlet pipe away from the water tank body is connected to an electric heating device and the inlet of a water heat exchanger via a T-joint and a water pipe, respectively. The outlet of the water heat exchanger is connected to an electric auxiliary heating device via a water pipe.
[0006] The electric heating device includes a first housing, which contains an electric heater and a first controller. The electric heater includes an outer shell, and the inner wall of the outer shell includes an antifreeze inner liner. Multiple heating rods are provided inside the outer shell, and water pipes are coiled around the heating rods. The inlet and outlet of the water pipes are respectively connected to the electric heating inlet pipe and the electric heating outlet pipe. The electric heating inlet pipe is connected to one end of a tee connector via a connecting pipe head.
[0007] The electrically heated water outlet pipe is connected to the first umbrella via a water pipe.
[0008] The water heat exchanger is fixed to the engine.
[0009] The electric auxiliary heating device includes a second housing, inside which is an electric auxiliary heater and a second controller. The inlet and outlet of the electric auxiliary heater are respectively connected to an electric auxiliary heating water inlet pipe and an electric auxiliary heating water outlet pipe. The electric auxiliary heating water inlet pipe is connected to one end of a three-way pipe through a connecting pipe head, and the electric auxiliary heating water outlet pipe is connected to the second umbrella through a connecting pipe head and a water pipe.
[0010] A temperature sensor is installed at the electric auxiliary heating water inlet pipe.
[0011] The first housing and the second housing are respectively provided with a first display screen, a first control panel, a second display screen, and a second control panel.
[0012] The first controller is electrically connected to the heating rod, the first display screen, and the first control panel.
[0013] The second controller is electrically connected to the electric auxiliary heater, the temperature sensor, the second control panel, and the second display screen.
[0014] The first controller, the second controller, the heating rod, the first display screen, the electric auxiliary heater, and the second display screen are all electrically connected to the vehicle battery.
[0015] The beneficial effects of this utility model are:
[0016] This invention effectively solves the problem of truck drivers using low-temperature water in cold environments through an innovative water diversion and dual-mode heating design. Traditional truck water tanks can only provide cold water, resulting in a poor user experience in winter. This patent uses a three-way connector to divert the water outlet to an electric heating device and a water heat exchanger, forming a composite heating system of "electric heating" + "engine waste heat + electric auxiliary heating".
[0017] When the vehicle is in motion, the water heat exchanger directly utilizes the engine's waste heat to preheat the water flow, supplemented by electric auxiliary heating to achieve a suitable temperature, significantly reducing energy consumption. When the vehicle is parked or in low-temperature environments, the electric heating device operates independently, using a tightly coupled design of coiled heating rods and water pipes to heat the block and achieve rapid temperature rise. This dual-mode heating mechanism ensures a continuous supply of hot water while reducing energy waste through waste heat recovery, significantly improving water comfort and energy efficiency during long-distance truck transportation. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model.
[0019] Figure 2 This is a schematic diagram of the structure of this utility model.
[0020] Figure 3 This is a schematic diagram of the structure of this utility model.
[0021] The components are as follows: 1-Water tank body; 2-Outlet pipe; 3-Switch valve; 4-T-connector; 5-Electric heating device; 6-Water heat exchanger; 7-Electric auxiliary heating device; 8-First shell; 9-Electric heater; 10-First controller; 11-Outer shell; 12-Heating rod; 13-Water pipe; 14-Electric heating inlet pipe; 15-Electric heating outlet pipe; 16-Connecting pipe head; 17-First umbrella; 18-Second shell; 19-Electric auxiliary heater; 20-Second controller; 21-Electric auxiliary heating inlet pipe; 22-Electric auxiliary heating outlet pipe; 23-Second umbrella; 24-Temperature sensor; 25-First display screen; 26-Second display screen; 27-First control panel; 28-Second control panel. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.
[0023] A vehicle-mounted water heater includes a water tank body 1, with a water outlet pipe 2 connected to one side of the water tank body 1. A switch valve 3 is provided on the water outlet pipe 2. The end of the water outlet pipe 2 away from the water tank body 1 is connected to an electric heating device 5 and the inlet of a water heat exchanger 6 through a three-way connector 4 and a water pipe, respectively. The outlet of the water heat exchanger 6 is connected to an electric auxiliary heating device 7 through a water pipe.
[0024] The electric heating device 5 includes a first housing 8, which contains an electric heater 9 and a first controller 10. The electric heater 9 includes an outer shell 11, with an antifreeze inner liner on the inner wall of the outer shell. Multiple heating rods 12 are provided inside the outer shell 11, and water pipes 13 are coiled around the heating rods 12. The inlet and outlet of the water pipes 13 are respectively connected to the electric heating inlet pipe 14 and the electric heating outlet pipe 15. The electric heating inlet pipe 14 is connected to one end of the tee connector 4 through a connecting pipe head 16.
[0025] The electrically heated water outlet pipe 15 is connected to the first flower umbrella 17 via a water pipe.
[0026] The water heat exchanger 6 is fixed to the engine.
[0027] The electric auxiliary heating device 7 includes a second housing 18, which houses an electric auxiliary heater 19 and a second controller 20. The inlet and outlet of the electric auxiliary heater 19 are connected to an electric auxiliary heating water inlet pipe 21 and an electric auxiliary heating water outlet pipe 22, respectively. The electric auxiliary heating water inlet pipe 21 is connected to one end of a three-way pipe 4 via a connecting pipe head 16, and the electric auxiliary heating water outlet pipe 22 is connected to the second umbrella 23 via the connecting pipe head 16 and a water pipe.
[0028] A temperature sensor 24 is installed at the electric auxiliary heating water inlet pipe 21.
[0029] The first housing 8 and the second housing 18 are respectively provided with a first display screen 25, a first control panel 27, a second display screen 26, and a second control panel 28.
[0030] The first controller 10 is electrically connected to the heating rod 12, the first display screen 25, and the first control panel 27.
[0031] The second controller 20 is electrically connected to the electric auxiliary heater 19, the temperature sensor 24, the second display screen 26, and the second control panel 28.
[0032] The first controller 10, the second controller 20, the temperature sensor 24, the first control panel 27, the second control panel 28, the heating rod 12, the first display screen 2, the electric auxiliary heater 19, and the second display screen 26 are all electrically connected to the vehicle battery.
[0033] The principle of this invention is as follows: When the driver needs to use hot water while the truck is in motion, he first opens the valve 3 on the outlet pipe 2, and the cold water in the water tank 1 flows out through the outlet pipe 2. Since the outlet pipe 2 is divided by the tee connector 4, a portion of the cold water enters the electric heating inlet pipe 14 of the electric heating device 5 through the connecting pipe 16, and flows into the water pipe 13 coiled on the heating rod 12 inside the electric heater 9.
[0034] Meanwhile, another portion of cold water enters the inlet of the water heat exchanger 6 through the three-way connector 4. The water heat exchanger 6 is fixed to the engine, utilizing the waste heat generated by the engine to preheat the water flow. The preheated water flows out from the outlet of the water heat exchanger 6 and enters the electric auxiliary heating inlet pipe 21 of the electric auxiliary heating device 7 through a water pipe. The temperature sensor 24 at the electric auxiliary heating inlet pipe 21 monitors the water temperature in real time and transmits the data to the second controller 20. The second controller 20 can control the electric auxiliary heater 19 to work according to the settings of the second control panel 28 and the data fed back by the temperature sensor 24, to replenish the temperature of the preheated water and bring it to a suitable temperature. The replenished hot water flows out from the electric auxiliary heating outlet pipe 22 and is transported to the second umbrella 23 through a water pipe to provide hot water for the driver. When the truck is parked or in a low-temperature environment, the engine waste heat cannot be effectively utilized. At this time, the electric heating device 5 works independently. The first controller 10 controls the heating rod 12 to quickly heat the water in the water pipe 13, and the hot water flows out from the first umbrella 17.
[0035] The entire system employs a dual-mode heating mechanism, allowing for flexible operation depending on the situation. This ensures a constant supply of hot water while reducing energy waste through waste heat recovery, significantly improving water comfort and energy efficiency during long-haul truck transportation. The water heat exchanger can be made of copper, aluminum, or stainless steel, and can be fixed to the engine using bolts, clamps, or welding. The electric auxiliary heater can be any commercially available electric auxiliary heater.
[0036] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A vehicle-mounted water heater, characterized in that, The device includes a water tank body, one side of which is connected to a water outlet pipe. The water outlet pipe is equipped with a switch valve. The end of the water outlet pipe away from the water tank body is connected to an electric heating device and the inlet of a water heat exchanger via a T-joint and a water pipe, respectively. The outlet of the water heat exchanger is connected to an electric auxiliary heating device via a water pipe.
2. The vehicle-mounted water heater according to claim 1, characterized in that, The electric heating device includes a first housing, which contains an electric heater and a first controller. The electric heater includes an outer shell, and the inner wall of the outer shell includes an antifreeze inner liner. Multiple heating rods are provided inside the outer shell, and water pipes are coiled around the heating rods. The inlet and outlet of the water pipes are respectively connected to the electric heating inlet pipe and the electric heating outlet pipe. The electric heating inlet pipe is connected to one end of a tee connector via a connecting pipe head.
3. A vehicle-mounted water heater according to claim 2, characterized in that, The electrically heated water outlet pipe is connected to the first umbrella via a water pipe.
4. A vehicle-mounted water heater according to claim 1, characterized in that, The water heat exchanger is fixed to the engine.
5. A vehicle-mounted water heater according to claim 1, characterized in that, The electric auxiliary heating device includes a second housing, inside which is an electric auxiliary heater and a second controller. The inlet and outlet of the electric auxiliary heater are respectively connected to an electric auxiliary heating water inlet pipe and an electric auxiliary heating water outlet pipe. The electric auxiliary heating water inlet pipe is connected to one end of a three-way pipe through a connecting pipe head, and the electric auxiliary heating water outlet pipe is connected to the second umbrella through a connecting pipe head and a water pipe.
6. A vehicle-mounted water heater according to claim 5, characterized in that, A temperature sensor is installed at the electric auxiliary heating water inlet pipe.
7. A vehicle-mounted water heater according to claim 2, characterized in that, The first housing and the second housing are respectively provided with a first display screen, a first control panel, a second display screen, and a second control panel.
8. A vehicle-mounted water heater according to claim 7, characterized in that, The first controller is electrically connected to the heating rod, the first display screen, and the first control panel.
9. A vehicle-mounted water heater according to claim 7, characterized in that, The second controller is electrically connected to the electric auxiliary heater, temperature sensor, second display screen, and second control panel.
10. A vehicle-mounted water heater according to claim 7, characterized in that, The first controller, the second controller, the heating rod, the first display screen, the electric auxiliary heater, and the second display screen are all electrically connected to the vehicle battery.