CN211737267U - Engine cooling system matched with 48V motor - Google Patents

Abstract

The utility model relates to an engine cooling system matched with a 48V motor, wherein the outlet of a cooling pipeline of an engine cylinder cover is respectively communicated with a radiator inlet and a second tee joint through a third tee joint, the other two interfaces of the second tee joint are respectively communicated with the inlets of a first tee joint and a warm air core body, the other two interfaces of the first tee joint are respectively communicated with the outlet of the warm air core body and a fourth tee joint, a first water type heat exchanger and a second water type heat exchanger are arranged on a pipeline between the first tee joint and the second tee joint, the other two interfaces of the fourth tee joint are respectively communicated with an expansion water tank and the fourth tee joint, the other three interfaces of the fourth tee joint are respectively communicated with the inlet of a mechanical water pump, the outlet of the cooling pipeline of the 48V motor is communicated with the outlet of the radiator, the outlet of the mechanical water pump is communicated with the outlet of the cooling liquid of the engine cylinder body, the, the problem of efficiency reduction of the 48V motor at high temperature is solved.

Description

Engine cooling system matched with 48V motor

Technical Field

The utility model relates to an engine cooling system field, concretely relates to match engine cooling system of 48V motor.

Background

The vehicle model matching with the 48V motor needs to consider the cooling requirements of the engine and the 48V motor at the same time, and the common mode is that the 48V motor is connected in series in a small cycle of the engine through a cooling pipeline and forms a loop together with a warm air core body, an engine oil cooler and the like. The disadvantages of this approach are: in a high-temperature environment in summer, the temperature of the water outlet of the engine is high, and the heat dissipation of the 48V motor is unfavorable, so that the efficiency of the motor caused by over-temperature is easily reduced.

Disclosure of Invention

The utility model aims at providing a match engine cooling system of 48V motor, through the redesign to cooling system topological principle, the coolant liquid that adopts the minimum temperature point among the engine cooling system cools off the 48V motor to reduce the operating temperature of 48V motor, make the work efficiency of 48V motor obtain promoting. The motor has the advantages of reasonable structure and high reliability, and overcomes the problem of efficiency reduction of a 48V motor at high temperature.

The technical implementation scheme of the invention is as follows:

an engine cooling system matched with a 48V motor comprises an engine assembly, a small circulation loop, a cooling circulation loop and a cooling liquid filling device; the engine assembly comprises an engine cylinder body 5, an engine cylinder cover 12 connected to the upper end of the engine cylinder body, a mechanical water pump 3 and a 48V motor 14, wherein the mechanical water pump 3 is fixed on the engine cylinder body through a bolt, and the 48V motor is fixed on the engine cylinder cover through a bracket through a bolt; the small circulation loop consists of a first tee joint 6, a second tee joint 10, a third tee joint 11, a fourth tee joint 15, a four-way joint 2, a warm air core body 8, a first water type heat exchanger 7, a second water type heat exchanger 9 and an engine assembly, and the cooling circulation loop consists of a mechanical water pump 3, an engine cylinder body cooling liquid outlet 4 and a 48V motor 14; the large circulation loop consists of a thermostat 13, a radiator 1 and a four-way valve 2; the cooling liquid filling device comprises an expansion water tank 16 and a fourth tee 15; the engine cylinder body 5 is communicated with a cooling pipeline of an engine cylinder cover 12, the outlet of the cooling pipeline of the engine cylinder cover 12 is respectively communicated with the inlet of a radiator 1 and a second tee joint 10 through a third tee joint 11, the other two interfaces of the second tee joint 10 are respectively communicated with the inlets of a first tee joint 6 and a warm air core body 8, the other two interfaces of the first tee joint 6 are respectively communicated with the outlet of the warm air core body 8 and a fourth tee joint 15, a first water type heat exchanger 7 and a second water type heat exchanger 9 are arranged on a pipeline between the first tee joint 6 and the second tee joint 10, a thermostat 13 is arranged on a pipeline between the third tee joint 11 and the inlet of the radiator 1, the other two interfaces of the fourth tee joint 15 are respectively communicated with an expansion water tank 16 and a four-way joint 2, the other three interfaces of the four-way 2 are respectively communicated with the inlet of a mechanical water pump 3, the outlet of the cooling pipeline of a 48V motor 14, the outlet of the mechanical water pump 3 is communicated with the engine block cooling liquid outlet 4, and the engine block cooling liquid outlet 4 is communicated with the cooling pipeline inlet of the 48V motor 14.

As a more excellent technical solution of the utility model: the radiator 1 is in one of a longitudinal flow mode, a transverse flow mode, a direct flow mode or a U-shaped flow mode.

The beneficial effects are that:

the utility model has the advantages of rational in infrastructure and high reliability, overcome 48V motor efficiency reduction problem under high temperature, utilized the coolant liquid that the temperature is the lowest in whole cooling system to cool off for 48V motor is progressive, the refrigerated effect is compared the temperature with other positions and is had 8 ℃ -10 ℃ temperature reduction, more favorable ambient temperature condition has been created for the work of 48V motor for 48V motor's work efficiency obtains promoting, and the cost that consumes simultaneously is minimum.

Drawings

Fig. 1 is a schematic connection diagram of an engine cooling system of the present invention, which is matched with a 48V motor;

in the figure: 1. the heat pump type air conditioner comprises a radiator, 2, a four-way joint, 3, a mechanical water pump, 4, an engine cylinder body coolant liquid outlet, 5, an engine cylinder body, 6, a first three-way joint, 7, a first water type heat exchanger, 8, a warm air core body, 9, a second water type heat exchanger, 10, a second three-way joint, 11, a third three-way joint, 12, an engine cylinder cover, 13, a thermostat, a 14.48V motor, 15, a fourth three-way joint and 16 an expansion water tank.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1, the utility model provides an engine cooling system matched with a 48V motor, which comprises an engine assembly, a small circulation loop, a cooling circulation loop and a cooling liquid filling device; the engine assembly comprises an engine cylinder body 5, an engine cylinder cover 12 connected to the upper end of the engine cylinder body, a mechanical water pump 3 and a 48V motor 14, wherein the mechanical water pump 3 is fixed on the engine cylinder body through a bolt, and the 48V motor is fixed on the engine cylinder cover through a bracket through a bolt; the small circulation loop consists of a first tee joint 6, a second tee joint 10, a third tee joint 11, a fourth tee joint 15, a four-way joint 2, a warm air core body 8, a first water type heat exchanger 7, a second water type heat exchanger 9 and an engine assembly, and the cooling circulation loop consists of a mechanical water pump 3, an engine cylinder body cooling liquid outlet 4 and a 48V motor 14; the large circulation loop consists of a thermostat 13, a radiator 1 and a four-way valve 2; the cooling liquid filling device comprises an expansion water tank 16 and a fourth tee 15; the engine cylinder body 5 is communicated with a cooling pipeline of an engine cylinder cover 12, the outlet of the cooling pipeline of the engine cylinder cover 12 is respectively communicated with the inlet of a radiator 1 and a second tee joint 10 through a third tee joint 11, the other two interfaces of the second tee joint 10 are respectively communicated with the inlets of a first tee joint 6 and a warm air core body 8, the other two interfaces of the first tee joint 6 are respectively communicated with the outlet of the warm air core body 8 and a fourth tee joint 15, a first water type heat exchanger 7 and a second water type heat exchanger 9 are arranged on a pipeline between the first tee joint 6 and the second tee joint 10, a thermostat 13 is arranged on a pipeline between the third tee joint 11 and the inlet of the radiator 1, the other two interfaces of the fourth tee joint 15 are respectively communicated with an expansion water tank 16 and a four-way joint 2, the other three interfaces of the four-way 2 are respectively communicated with the inlet of a mechanical water pump 3, the outlet of the cooling pipeline of a 48V motor 14, the outlet of the mechanical water pump 3 is communicated with the engine block cooling liquid outlet 4, and the engine block cooling liquid outlet 4 is communicated with the cooling pipeline inlet of the 48V motor 14. The radiator 1 is in one of a longitudinal flow mode, a transverse flow mode, a direct flow mode or a U-shaped flow mode.

The utility model discloses a coolant liquid passes through expansion tank filling for liquid is full of whole cooling system. After the pressure of the cooling liquid is increased by the mechanical water pump, a part of the cooling liquid flows through an engine cylinder body and then through an engine cylinder cover 12, when a thermostat 13 is closed, the cooling liquid respectively flows through a warm air core body 8 and a first water-type heat exchanger and a second water-type heat exchanger through a small circulation loop, and then the cooling liquid is collected and flows into a water inlet of the mechanical water pump through a four-way joint 2; when the thermostat 13 is turned on, the coolant flows not only into the small circulation circuit described above but also through the large circulation circuit, and then is collected with the small circulation circuit at the four-way junction via the radiator, and then flows into the mechanical water pump. And the other part is that point is taken through a water jacket at the water outlet of the mechanical water pump behind the engine cylinder body, then the cooling liquid enters the 48V motor through a pipeline to cool the 48V motor, and then the cooling liquid flows through the four-way valve through the pipeline to return to the water inlet of the mechanical water pump.

The utility model discloses an independent 48V motor cooling system is coolant liquid from engine cylinder body coolant liquid flow outlet 4, flows through pipeline to 48V motor 14, later gets back to in the electric water pump water inlet through pipeline, cross 2. The utility model discloses under the lower circumstances of engine coolant temperature, thermostat 13 closes, and little circulation circuit and 48V motor return circuit are flowed through simultaneously to the coolant liquid, and under the higher circumstances of engine coolant temperature, thermostat 13 opens, and little circulation circuit, big circulation circuit and 48V motor cooling circuit are flowed through simultaneously to the coolant liquid, and the coolant liquid passes through radiator heat dissipation back temperature and reduces, and 48V motor cooling effect can guarantee. This use neotype will be through the engine cylinder body coolant liquid flow export 4 of seting up on original engine cylinder body, and the coolant liquid after adopting the radiator cooling cools off for 48V motor's cooling environment is optimal.

Claims (2)

1. An engine cooling system that matches a 48V electric machine, characterized by: the system comprises an engine assembly, a small circulation loop, a cooling circulation loop, a large circulation loop and a cooling liquid filling device; the engine assembly comprises an engine cylinder body (5), an engine cylinder cover (12) connected to the upper end of the engine cylinder body, a mechanical water pump (3) and a 48V motor (14), wherein the mechanical water pump (3) is fixed on the engine cylinder body through a bolt, and the 48V motor is fixed on the engine cylinder cover through a support and a bolt; the small circulation loop consists of a first tee joint (6), a second tee joint (10), a third tee joint (11), a fourth tee joint (15), a four-way joint (2), a warm air core body (8), a first water type heat exchanger (7), a second water type heat exchanger (9) and an engine assembly, and the cooling circulation loop consists of a mechanical water pump (3), an engine cylinder body cooling liquid outlet (4) and a 48V motor (14); the large circulation loop consists of a thermostat (13), a radiator (1) and a four-way joint (2); the cooling liquid filling device comprises an expansion water tank (16) and a fourth tee joint (15); the engine cylinder body (5) is communicated with a cooling pipeline of an engine cylinder cover (12), an outlet of the cooling pipeline of the engine cylinder cover (12) is respectively communicated with an inlet of a radiator (1) and a second tee joint (10) through a third tee joint (11), the other two interfaces of the second tee joint (10) are respectively communicated with inlets of a first tee joint (6) and a warm air core body (8), the other two interfaces of the first tee joint (6) are respectively communicated with an outlet of the warm air core body (8) and a fourth tee joint (15), a first water type heat exchanger (7) and a second water type heat exchanger (9) are arranged on a pipeline between the first tee joint (6) and the second tee joint (10), a thermostat (13) is arranged on a pipeline between the third tee joint (11) and the inlet of the radiator (1), the other two interfaces of the fourth tee joint (15) are respectively communicated with an expansion water tank (16) and a tee joint (2), the other three interfaces of the four-way joint (2) are respectively communicated with an inlet of a mechanical water pump (3), a cooling pipeline outlet of a 48V motor (14) and an outlet of a radiator (1), an outlet of the mechanical water pump (3) is communicated with a cooling liquid outlet (4) of an engine cylinder, and the cooling liquid outlet (4) of the engine cylinder is communicated with a cooling pipeline inlet of the 48V motor (14).

2. An engine cooling system for a 48V electric machine matched as recited in claim 1 wherein: the radiator (1) adopts one of longitudinal flow, transverse flow, direct flow or U-shaped flow modes.

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