New energy environmental sanitation sweeper whole vehicle motor gas-liquid cooling system

Abstract

The utility model provides a new energy environmental sanitation sweeper whole vehicle motor gas-liquid two-phase cooling system, which comprises a vehicle-mounted water tank and a circulating pump, the circulating pump is fixed at the top of the vehicle-mounted water tank, one end of the circulating pump is connected with a water pump water-cooling motor through a connecting pipe, and one end of the water pump water-cooling motor is connected with an inner spiral cooling pipe through a connecting pipe. One end of the inner spiral cooling pipe is connected with an axle water cooling motor through a connecting pipe, one end of the axle water cooling motor is connected with a spiral cooling pipe through a connecting pipe, and an air cooling radiator and a temperature sensing device are connected to the connecting pipe between the water pump water cooling motor and the circulating pump. The problem that the motor on the sanitation sweeper is damaged or the performance is reduced due to heating is solved to a great extent, the heat dissipation effect is good, and the service life of the motor is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation and cooling equipment for new energy vehicles, and in particular to a gas-liquid cooling system for a motor of a new energy environmental sanitation sweeper. Background Art

[0002] With the vigorous development of new energy vehicles and the steady progress of domestic urbanization, the demand for new energy sanitation sweepers is increasing. As the core component of new energy sanitation sweepers, the motor plays an important role in various links such as vehicle driving, fan drive, and water pump drive. When the motor works for a long time, the heat generated by it cannot be dissipated in time, which is an important factor in motor damage and motor efficiency reduction. Most motors on the market basically adopt the method of adding fans to the body and using air cooling for physical cooling. However, under high-intensity working hours, the fan cooling effect is not particularly obvious. Utility Model Content

[0003] The purpose of the utility model is to solve the problems existing in the above-mentioned background technology, and to propose a gas-liquid cooling system for the whole motor of a new energy sanitation sweeper.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A new energy sanitation sweeper vehicle has a gas-liquid cooling system for the entire motor, including a vehicle-mounted water tank and a circulating pump, wherein a circulating pump is fixed on the top of the vehicle-mounted water tank, one end of the circulating pump is connected to a water pump water-cooled motor via a connecting pipe, one end of the water pump water-cooled motor is connected to an inner spiral cooling pipe via a connecting pipe, one end of the inner spiral cooling pipe is connected to an axle water-cooled motor via a connecting pipe, one end of the axle water-cooled motor is connected to a spiral cooling pipe via a connecting pipe, and an air-cooled radiator and a temperature sensing device are connected to the connecting pipe between the water pump water-cooled motor and the circulating pump.

[0006] Preferably, an exchange water cooler is nested on the outer side of the inner spiral cooling tube.

[0007] Preferably, the spiral cooling pipe is embedded in the lower part of the vehicle-mounted water tank.

[0008] Preferably, a signal transmission end of the temperature sensing device is connected to a signal receiving end of the air-cooled radiator.

[0009] Start the water cooling system switch, the antifreeze provides kinetic energy through the circulation pump, enters the one-way closed-circuit flow channel of the water pump water-cooled motor through the pipeline, absorbs the heat dissipated by the water pump water-cooled motor, and brings the heat to the spiral cooling pipe in the flow exchange water cooler. At this time, the water pump absorbs the water in the water tank to flow through the outer surface of the inner spiral cooling pipe, taking away the heat of the water pump water-cooled motor, and then flows to the sweeping plate of the sweeper through the drain outlet of the exchange water cooler for secondary water utilization. After completing the flow water cooling, the refrigerant flows to the flow channel of the axle water-cooled motor through the pipeline, absorbs the heat, and brings the heat of the axle water-cooled motor to the spiral cooling pipe pre-buried in the vehicle-mounted water tank, and the antifreeze is cooled by the water in the vehicle-mounted water tank for a second water bath. After cooling, it flows through the flow channel of the fan water-cooled motor, absorbs the heat emitted by the fan water-cooled motor. If the heat temperature of the pipeline reaches above 65 degrees Celsius at this time, it is confirmed by the temperature sensing device, and the air-cooled radiator starts automatically to perform the third physical cooling. After multi-link cooling treatment, the antifreeze flows to the circulation pump and is circulated in the pipeline system. The physical properties of the antifreeze are that in relatively harsh or long-term working environments, its boiling point is above 110 degrees Celsius, and its freezing point range is -15°~-68°, which is adaptable in both the south and the north. The use of the water cooling system of the present invention can greatly solve the problem of damage or performance degradation of the motor on the sanitation sweeper due to heat, and the heat dissipation effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 It is a schematic diagram of the overall structural pipeline in the utility model.

[0012] Legend:

[0013] On-vehicle water tank 1, circulating pump 2, water pump water-cooled motor 3, exchange water cooler 4, inner spiral cooling pipe 5, axle water-cooled motor 6, spiral cooling pipe 7, air-cooled radiator 8, temperature sensing device 9. DETAILED DESCRIPTION

[0014] Example 1, reference Figure 1-2 A new energy sanitation sweeper motor gas-liquid cooling system includes a vehicle-mounted water tank 1 and a circulating pump 2. The circulating pump 2 is fixed on the top of the vehicle-mounted water tank 1. One end of the circulating pump 2 is connected to a water pump water-cooled motor 3 through a connecting pipe. One end of the water pump water-cooled motor 3 is connected to an inner spiral cooling pipe 5 through a connecting pipe. One end of the inner spiral cooling pipe 5 is connected to an axle water-cooled motor 6 through a connecting pipe. One end of the axle water-cooled motor 6 is connected to a spiral cooling pipe 7 through a connecting pipe. An air-cooled radiator 8 and a temperature sensing device 9 are connected to the connecting pipe between the water pump water-cooled motor 3 and the circulating pump 2.

[0015] The outer side of the inner spiral cooling tube 5 is nested with an exchange water cooler 4;

[0016] The spiral cooling pipe 7 is embedded in the lower part of the vehicle-mounted water tank 1;

[0017] When the water cooling system switch is turned on, the antifreeze provides kinetic energy through the circulation pump 2, enters the one-way closed-circuit flow channel of the water pump water-cooled motor 3 through the pipeline, absorbs the heat dissipated by the water pump water-cooled motor 3, and brings the heat to the spiral cooling pipe 5 in the flow exchange water cooler 4. At this time, the water pump absorbs the water in the water tank and flows through the outer surface of the inner spiral cooling pipe 5, taking away the heat of the water pump water-cooled motor 3, and then flows to the sweeping plate of the sweeper through the drain outlet of the exchange water cooler 4 for secondary water utilization. After completing the flow water cooling, the refrigerant flows to the flow channel of the axle water-cooled motor 6 through the pipeline, absorbs the heat, and brings the heat of the axle water-cooled motor 6 to the spiral cooling pipe 7 pre-buried in the vehicle-mounted water tank 1. The antifreeze is cooled by the water in the vehicle-mounted water tank 1 for the second time in a water bath, and then flows through the flow channel of the fan water-cooled motor after cooling, absorbing the heat dissipated by the fan water-cooled motor, which can effectively prevent the motor from overheating during use and further improve the service life of the motor.

[0018] Embodiment 2, Embodiment 2 is different from Embodiment 1 in that, in this embodiment, a signal transmission end of the temperature sensing device 9 is connected to a signal receiving end of the air-cooled radiator 8;

[0019] During the operation of the sweeper, the heat temperature of the pipeline reaches above 65 degrees Celsius. After confirmation by the temperature sensing device 9, the air-cooled radiator 8 starts automatically and performs the third physical cooling. After multiple cooling processes, the antifreeze flows to the circulation pump 2 and is circulated in the pipeline system. The physical properties of the antifreeze are adaptable to both the south and the north in relatively harsh or long-term working environments, with a boiling point of more than 110 degrees Celsius and a freezing point range of -15°~-68°. The use of the water cooling system of the present invention solves the problem of damage or performance degradation of the motor on the sanitation sweeper due to heat to a great extent.

[0020] The above are only preferred implementations of the utility model. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model. These should also be regarded as the protection scope of the utility model. These will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A new energy sanitation sweeper motor gas-liquid cooling system, comprising a vehicle-mounted water tank (1) and a circulation pump (2), wherein the circulation pump (2) is fixed on the top of the vehicle-mounted water tank (1), characterized in that: One end of the circulation pump (2) is connected to a water pump water-cooled motor (3) via a connecting pipe, one end of the water pump water-cooled motor (3) is connected to an inner spiral cooling pipe (5) via a connecting pipe, one end of the inner spiral cooling pipe (5) is connected to an axle water-cooled motor (6) via a connecting pipe, one end of the axle water-cooled motor (6) is connected to a spiral cooling pipe (7) via a connecting pipe, and an air-cooled radiator (8) and a temperature sensing device (9) are connected to the connecting pipe between the water pump water-cooled motor (3) and the circulation pump (2).

2. The gas-liquid two-phase cooling system for the motor of the new energy sanitation sweeper according to claim 1 is characterized in that: An exchange water cooler (4) is nested on the outer side of the inner spiral cooling tube (5).

3. The gas-liquid two-phase cooling system for the motor of the new energy sanitation sweeper according to claim 1 is characterized in that: The spiral cooling pipe (7) is embedded in the lower part of the vehicle-mounted water tank (1).

4. The gas-liquid two-phase cooling system for the motor of the new energy sanitation sweeper according to claim 1 is characterized in that: A signal connection is provided between the signal sending end of the temperature sensing device (9) and the signal receiving end of the air-cooling radiator (8).

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