Cooling system of power assembly

Abstract

The utility model discloses a cooling system of a power assembly and belongs to the technical field of engine cooling. The water pump is communicated with the engine water jacket, the engine water jacket is communicated with the thermostat shell and the thermostat, the shell water outlet end of the thermostat shell is communicated with the second radiator, the second radiator is communicated with the transmission oil cooler, and the transmission oil cooler is communicated with the engine oil cooler water inlet end of the engine oil cooler. The engine oil cooler is communicated with the first water inlet end of the water pump; the water outlet end of the thermostat is communicated with the first radiator, and the first water outlet end of the first radiator is communicated with the second water inlet end of the water pump. The second water outlet end of the first radiator is communicated with the liquid supplementing pot, and the water outlet end of the liquid supplementing pot is communicated with the third water inlet end of the water pump. The second radiator is additionally arranged, heat dissipation of engine oil and transmission oil is enhanced, the requirement for dissipating heat generated by a high-speed and large accelerator of a vehicle is met, and engine oil is prevented from losing efficacy due to overheating and even damaging parts.

Description

Technical Field

[0001] The utility model relates to a cooling system of a power assembly and belongs to the technical field of engine cooling. Background Art

[0002] The powertrain of the vehicle will quickly accumulate a lot of heat during operation. Overheating of the powertrain will not only reduce its performance, but may even cause damage in severe cases. Therefore, it is very important to effectively cool the powertrain.

[0003] Although the traditional automobile engine cooling system can effectively reduce the temperature of the engine block and cylinder head, the temperature of the cooling water has risen significantly after flowing through these components, forming hot water. If this hot water is directly used to cool the engine oil and transmission oil, especially under high load conditions, the oil temperature will rise rapidly and exceed its safe operating temperature range.

[0004] Take the Chinese utility model patent with the publication date of April 6, 2021, publication number CN212898688U, and the name of "Automobile Engine Cooling System and Vehicle" as an example. Although it provides a design solution for a cooling system, there is still a problem of excessive oil temperature in actual application. When the engine and transmission enter the thermal protection mode due to excessive oil temperature, the normal operation of the vehicle will be seriously affected, which not only reduces the efficiency of the vehicle, but may also cause irreversible damage to the powertrain. Utility Model Content

[0005] In order to solve the problems existing in the background technology, the utility model provides a cooling system for a powertrain.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cooling system of a powertrain, comprising a water pump, an engine water jacket, a thermostat housing, a thermostat, a transmission oil cooler, a radiator 2, a radiator 1 and an engine oil cooler; a water outlet end of the water pump is connected to a water inlet end of the engine water jacket, the water outlet end of the engine water jacket is connected to a water inlet end of the thermostat housing and a water inlet end of the thermostat, a shell water outlet end of the thermostat housing is connected to a water inlet end of the radiator 2, a water outlet end of the radiator 2 is connected to a water inlet end of the transmission oil cooler, a water outlet end of the transmission oil cooler is connected to a water inlet end of the engine oil cooler, and a water outlet end of the engine oil cooler is connected to a first water inlet end of the water pump; a thermostat water outlet end of the thermostat is connected to a water inlet end of the radiator 1, and a first water outlet end of the radiator 1 is connected to a second water inlet end of the water pump.

[0007] The second water outlet end of the radiator 1 is connected to the water inlet end of the liquid replenishing pot, and the water outlet end of the liquid replenishing pot is connected to the third water inlet end of the water pump.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] The utility model adds a second radiator to strengthen the heat dissipation of the engine oil and the transmission oil, meet the heat dissipation requirements generated by high speed and large throttle of the vehicle, and avoid overheating of the oil and failure, or even damage to parts. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0011] Figure 2 It is a principle diagram of the utility model. DETAILED DESCRIPTION

[0012] The technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0013] A cooling system for a powertrain, comprising a water pump 1, an engine water jacket 2, a thermostat housing 3, a thermostat 4, a transmission oil cooler 5, a radiator 2 6, a radiator 1 7 and an engine oil cooler 8; the water outlet of the water pump 1 is connected to the water inlet of the engine water jacket 2, the water outlet of the engine water jacket 2 is connected to the water inlet of the thermostat housing 3 and the water inlet of the thermostat 4, the water outlet 10 of the thermostat housing 3 is connected to the water inlet of the radiator 2 6 The water outlet end of the radiator 2 6 is connected to the water inlet end of the transmission oil cooler 5, the water outlet end of the transmission oil cooler 5 is connected to the engine oil cooler water inlet end 11 of the engine oil cooler 8, and the water outlet end of the engine oil cooler 8 is connected to the first water inlet end of the water pump 1; the thermostat water outlet end 12 of the thermostat 4 is connected to the water inlet end of the radiator 1 7, and the first water outlet end of the radiator 7 is connected to the second water inlet end of the water pump 1.

[0014] In the cold start state of the engine, the water pump 1 supplies water to the engine water jacket 2, and the water flows into the thermostat housing 3. At this time, the water temperature is lower than the opening temperature of the thermostat 4, and the water flow at the thermostat 4 is cut off. The water flows from the water outlet 10 of the thermostat housing 3 to the radiator 2 6 through the hose, flows through the transmission oil cooler 5, enters the engine oil cooler 8 through the engine oil cooler water inlet 11, and then flows back to the water pump 1. This process is called a small cycle (low temperature cooling). As the temperature rises, the thermostat 4 opens, and the water flow, in addition to the small cycle, flows from the thermostat water outlet 12 through the radiator 1 7 and then flows back to the water pump 1. This process is called a large cycle (high temperature cooling).

[0015] The second water outlet of the radiator 7 is connected to the water inlet of the liquid replenishing pot 9, and the water outlet of the liquid replenishing pot 9 is connected to the third water inlet of the water pump 1. The liquid replenishing pot 9 is used to replenish water or store the water expanded by the radiator 7.

[0016] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent conditions of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0017] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A cooling system for a powertrain, characterized in that: The invention comprises a water pump (1), an engine water jacket (2), a thermostat housing (3), a thermostat (4), a transmission oil cooler (5), a second radiator (6), a first radiator (7) and an engine oil cooler (8); the water outlet end of the water pump (1) is connected to the water inlet end of the engine water jacket (2); the water outlet end of the engine water jacket (2) is connected to the water inlet end of the thermostat housing (3) and the water inlet end of the thermostat (4); the housing water outlet end (10) of the thermostat housing (3) is connected to the water inlet end of the second radiator (6); The water outlet end of the radiator 2 (6) is connected to the water inlet end of the transmission oil cooler (5), the water outlet end of the transmission oil cooler (5) is connected to the engine oil cooler water inlet end (11) of the engine oil cooler (8), the water outlet end of the engine oil cooler (8) is connected to the first water inlet end of the water pump (1); the thermostat water outlet end (12) of the thermostat (4) is connected to the water inlet end of the radiator 1 (7), the first water outlet end of the radiator 1 (7) is connected to the second water inlet end of the water pump (1).

2. A cooling system for a powertrain according to claim 1, characterized in that: The second water outlet end of the radiator 1 (7) is connected to the water inlet end of the liquid replenishing pot (9), and the water outlet end of the liquid replenishing pot (9) is connected to the third water inlet end of the water pump (1).

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