In-vehicle heating device of hydrogen fuel cell heavy truck

Abstract

The utility model provides an in-vehicle heating device for a hydrogen fuel cell heavy truck, which comprises a battery, a water pump arranged at the upper end of the battery, a connecting pipe fixedly mounted in the middle of the front end of the water pump, a water outlet pipe fixedly mounted at the front part of the right end of the water pump, a flow guide pipe fixedly connected to the right end of the water outlet pipe, and a lower guide pipe fixedly mounted at the right end of the flow guide pipe. A fixing plate is fixedly installed at the right end of the lower guide pipe, a plurality of heat dissipation pipes are fixedly installed at the rear end of the fixing plate, an upper guide pipe is fixedly connected to the right ends of the heat dissipation pipes, an annular plate is fixedly installed at the front end of the fixing plate, a roller is fixedly connected to the front end of the annular plate, a rotating disc is movably connected to the middle of the connecting roller, and fan blades are movably installed on the outer side of the rotating disc. The middle of the flow guide pipe is fixedly connected with a backflow pipe. An in-vehicle heating device of a hydrogen fuel cell heavy truck can play a role in increasing the temperature rise speed of a carrier, enabling the vehicle to be quickly started in a low-temperature environment, not delaying the time of a driver and guaranteeing that work is completed on time.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile heating, and more specifically to an in-vehicle heating device for a hydrogen fuel cell heavy truck. Background Art

[0002] Most of the existing hydrogen fuel cell heavy trucks use PTC heating for defrosting and in-car heating. The evaporator fan blows air to the PTC heating tube, and the hot air is blown into the car, thereby raising the temperature inside the car. Or the system is not used at all, which affects driving comfort and poses certain driving safety risks. The efficiency of the PTC heating tube is relatively low, about 1:1. In areas with relatively low temperatures, long-term use will cause power loss, seriously affecting its cruising range.

[0003] In response to the above problems, regarding the defrosting and in-car heating of existing hydrogen fuel cell heavy trucks, most of them use PTC heating, which affects driving comfort and has certain driving safety hazards. The efficiency of the PTC heating tube is relatively low, about 1:1. In areas with relatively low temperatures, long-term use will cause power loss, which seriously affects its cruising range. As for the technical problems, after a lot of searches, a patent number of 202221054301.9 was found for an in-car heating device for a hydrogen fuel cell heavy truck, which involves the field of automobile heating. One side of the fuel cell stack is connected to a fuel cell water pump, and the other side of the fuel cell stack is connected to a second three-way valve, which is connected to a fuel cell radiator. A first condensing fan and other structures are arranged at the corresponding position of the fuel cell radiator. However, the technical solution provided by the patent has a slow heating speed for the water pump, which causes the vehicle to be unable to start in time in a low temperature environment, causing the driver to delay time and fail to complete the work on time.

[0004] The utility model can improve the heating speed of the vehicle, so that the vehicle can be started quickly in a low-temperature environment, without delaying the driver's time, and ensuring that the work is completed on time. Utility Model Content

[0005] The utility model aims to solve the technical problems raised by the above-mentioned background technology and provides an in-vehicle heating device for a hydrogen fuel cell heavy truck.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an in-vehicle heating device for a hydrogen fuel cell heavy truck, comprising: a battery, a water pump is arranged at the upper end of the battery, a connecting pipe is fixedly installed at the middle part of the front end of the water pump, a water outlet pipe is fixedly installed at the front part of the right end of the water pump, a guide pipe is fixedly connected to the right end of the water outlet pipe, a down guide pipe is fixedly installed at the right end of the guide pipe, a fixing plate is fixedly installed at the right end of the down guide pipe, a plurality of heat dissipation pipes are fixedly installed at the rear end of the fixing plate, an upper guide pipe is fixedly connected to the right end of the heat dissipation pipe, a ring plate is fixedly installed at the front end of the fixing plate, a connecting roller is fixedly connected to the front end of the ring plate, a rotating disk is movably connected to the middle part of the connecting roller, a fan blade is movably installed on the outer side of the rotating disk, and a return pipe is fixedly connected to the middle part of the guide pipe.

[0007] A further preferred solution is that a metal shielding box is installed at the upper end of the water pump, and a fin is provided at the lower end of the metal shielding box.

[0008] A further preferred solution is that air bags are provided at the left and right ends of the lower conduit, and a booster plate is fixedly connected to the outer side of the air bag, and the longitudinal section of the booster plate is semicircular.

[0009] A further preferred solution is that a guard plate is fixedly mounted on the right end of the guide pipe, and the guard plate is connected between the guide pipe and the downcomer.

[0010] A further preferred solution is that a rotating shaft is movably mounted at the front end of the reflux pipe, and a limiting ring is embedded on the outer side of the upper end of the rotating shaft.

[0011] A further preferred solution is that an inner ball valve is movably mounted on the bottom end of the rotating shaft, an outer ball valve is movably mounted on the outer side of the inner ball valve, and a bottom plate is fixedly mounted on the bottom end of the outer ball valve.

[0012] A further preferred solution is that the number of the heat dissipation tubes is 8, and the longitudinal section of the heat dissipation tube is rectangular.

[0013] Beneficial effects:

[0014] 1. By setting up the airbag and the guide pipe, when the water flows through the guide pipe, it flows to the lower conduit through the guide pipe. The airbag is installed in the lower conduit. The airbag expands as the temperature rises, driving the booster plate to advance, accelerating the flow of water and causing the temperature to rise rapidly;

[0015] 2. By setting a valve, when the water flows back, the inner valve ball is rotated by the rotating shaft to open the water outlet. By controlling the rotation angle, the water flow size is controlled to save energy loss;

[0016] 3. By setting up a heat dissipation pipe, water flows through the heat dissipation pipe, and the heat is dissipated through the rotating fan blades, the temperature is evenly diffused, and the temperature is quickly increased;

[0017] 4. In summary, a hydrogen fuel cell heavy truck in-vehicle heating device, by providing airbags, guide pipes and other structures, can increase the heating speed of the vehicle, so that the vehicle can be started quickly in a low temperature environment, will not delay the driver's time, and ensure that the work is completed on time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the rotating shaft of the utility model.

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the downcomer of the utility model.

[0021] Figure 4 This is a schematic diagram of the heat dissipation pipe structure of the utility model.

[0022] Figure 1-4 Middle: 1-battery, 2-water pump, 3-connecting pipe, 4-water outlet pipe, 5-fixed plate, 6-upper conduit, 7-lower conduit, 8-flow guide pipe, 9-ring plate, 10-rotating disk, 11-fan blades, 12-heat dissipation pipe, 13-return pipe, 14-rotating shaft, 15-connecting roller, 16-inner ball valve, 17-outer ball valve, 18-limiting ring, 19-bottom plate, 20-guard plate, 21-air bag, 22-boosting plate. DETAILED DESCRIPTION

[0023] The following will be combined with the attached embodiment of the utility model Figure 1-Figure 4 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0024] See also Figure 1-4 In an embodiment of the utility model, a vehicle heating device for a hydrogen fuel cell heavy truck comprises: a battery 1, a water pump 2 is arranged at the upper end of the battery 1, a connecting pipe 3 is fixedly installed at the middle part of the front end of the water pump 2, a water outlet pipe 4 is fixedly installed at the front part of the right end of the water pump 2, a flow guide pipe 8 is fixedly connected to the right end of the water outlet pipe 4, a downpipe 7 is fixedly installed at the right end of the flow guide pipe 8, a fixing plate 5 is fixedly installed at the right end of the downpipe 7, a plurality of heat dissipation pipes 12 are fixedly installed at the rear end of the fixing plate 5, an upper pipe 6 is fixedly connected to the right end of the heat dissipation pipe 12, a ring plate 9 is fixedly installed at the front end of the fixing plate 5, a connecting roller 15 is fixedly connected to the front end of the ring plate 9, a rotating disk 10 is movably connected to the middle part of the connecting roller 15, a fan blade 11 is movably installed on the outer side of the rotating disk 10, and a return pipe 13 is fixedly connected to the middle part of the flow guide pipe 8.

[0025] In the embodiment of the utility model, a metal shielding box is installed at the upper end of the water pump 2, and fins are provided at the lower end of the metal shielding box. The metal shielding box is provided to increase the insulation performance of the water pump 2, and the fins are used for heat dissipation of the water pump 2.

[0026] In the embodiment of the utility model, air bags 21 are provided at the left and right ends of the lower conduit 7, and a boosting plate 22 is fixedly connected to the outer side of the air bag 21. The longitudinal section of the boosting plate 22 is semicircular. The boosting plate 22 squeezes the water flow to increase the flow velocity of the water, and the semicircular shape of the longitudinal section can reduce resistance and increase the boosting effect.

[0027] In the embodiment of the utility model, a guard plate 20 is fixedly installed on the right end of the guide pipe 8, and the guard plate 20 is connected between the guide pipe 8 and the downpipe 7. The guard plate 20 makes the guide pipe 8 more stable and not easy to loosen and affect the water flow.

[0028] In the embodiment of the utility model, a rotating shaft 14 is movably installed at the front end of the reflux pipe 13, and a limit ring 18 is embedded on the outer side of the upper end of the rotating shaft 14. The ball valve is switched by the rotating shaft 14, and the limit ring 18 limits the movable direction of the rotating shaft 14.

[0029] In the embodiment of the utility model, an inner ball valve 16 is movably installed at the bottom end of the rotating shaft 14, an outer ball valve 17 is movably installed on the outer side of the inner ball valve 16, and a bottom plate 19 is fixedly installed at the bottom end of the outer ball valve 17. The water flow rate is controlled by the switching angle of the inner ball valve 16 to save energy loss, and the bottom plate 19 is used to limit the outer ball valve 17.

[0030] In the embodiment of the utility model, the number of the heat dissipation tubes 12 is 8, and the longitudinal section of the heat dissipation tube 12 is rectangular. The heat energy is transferred out through the 8 heat dissipation tubes 12, and the heat dissipation tube 12 with a rectangular longitudinal section is used to increase the heat dissipation area.

[0031] Working principle: when the vehicle is started, energy is transmitted to the water pump 2 through the battery 1, and the battery 1 is a hydrogen fuel cell. The water pump 2 heats the water and transmits it to the water outlet pipe 4. The water outlet pipe 4 is connected to the guide pipe 8, and the water then flows to the guide pipe 8, and then passes through the guide pipe 8 and the lower conduit 7. According to the principle of thermal expansion and contraction, the hot water flows through the lower conduit 7, and the air bag 21 inside it expands, pushing the boost plate 22 to increase the pressure of the water flow, increase the flow rate, and accelerate the temperature rise. Then the water flows to the heat dissipation pipe 12, and the heat energy is sent out through the heat dissipation pipe 12, and the fan blades 11 are driven by the rotating disk 10 to evenly send out the hot air to improve the comfort. After passing through the upper conduit 6, it refluxes, and after passing through the reflux pipe 13, it flows to the valve, and the rotation angle is controlled by the rotating shaft 14, thereby controlling the water flow and saving energy loss. Then the water flows to the water pump 2 through the connecting pipe 3 to complete the reflux.

Claims

1. A heating device for a hydrogen fuel cell heavy truck, comprising: A battery (1), characterized in that: a water pump (2) is arranged at the upper end of the battery (1), a connecting pipe (3) is fixedly installed at the middle of the front end of the water pump (2), a water outlet pipe (4) is fixedly installed at the front right end of the water pump (2), a flow guide pipe (8) is fixedly connected to the right end of the water outlet pipe (4), a downpipe (7) is fixedly installed at the right end of the flow guide pipe (8), a fixing plate (5) is fixedly installed at the right end of the downpipe (7), and a rear end of the fixing plate (5) is fixedly installed. A plurality of heat dissipation pipes (12) are fixedly mounted on the end, the right end of the heat dissipation pipe (12) is fixedly connected to an upper guide tube (6), a ring plate (9) is fixedly mounted on the front end of the fixed plate (5), a connecting roller (15) is fixedly connected to the front end of the ring plate (9), a rotating disk (10) is movably connected to the middle of the connecting roller (15), a fan blade (11) is movably mounted on the outer side of the rotating disk (10), and a return pipe (13) is fixedly connected to the middle of the guide pipe (8).

2. The in-vehicle heating device for a hydrogen fuel cell heavy truck according to claim 1 is characterized in that: A metal shielding box is installed at the upper end of the water pump (2), and fins are arranged at the lower end of the metal shielding box.

3. The in-vehicle heating device for a hydrogen fuel cell heavy truck according to claim 1, characterized in that: Air bags (21) are arranged at the left and right ends of the lower conduit (7), and a booster plate (22) is fixedly connected to the outside of the air bag (21). The longitudinal section of the booster plate (22) is in the shape of a semicircular ring.

4. The in-vehicle heating device for a hydrogen fuel cell heavy truck according to claim 1, characterized in that: A guard plate (20) is fixedly mounted on the right end of the flow guide pipe (8), and the guard plate (20) is connected between the flow guide pipe (8) and the downpipe (7).

5. The in-vehicle heating device for a hydrogen fuel cell heavy truck according to claim 1, characterized in that: A rotating shaft (14) is movably mounted at the front end of the return pipe (13), and a limiting ring (18) is embedded on the outer side of the upper end of the rotating shaft (14).

6. The in-vehicle heating device for a hydrogen fuel cell heavy truck according to claim 5, characterized in that: An inner ball valve (16) is movably mounted on the bottom end of the rotating shaft (14), an outer ball valve (17) is movably mounted on the outer side of the inner ball valve (16), and a bottom plate (19) is fixedly mounted on the bottom end of the outer ball valve (17).

7. The in-vehicle heating device for a hydrogen fuel cell heavy truck according to claim 1, characterized in that: The number of the heat dissipation tubes (12) is 8, and the longitudinal section of the heat dissipation tube (12) is rectangular.

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