Oil cooling motor electric control system and vehicle

Abstract

The utility model discloses an oil cooling motor electric control system and a vehicle, and the oil cooling motor electric control system comprises an oil cooler which comprises a first oil inlet and a first oil outlet; the electric control assembly comprises a second oil inlet and a second oil outlet, and the second oil inlet is communicated with the first oil outlet; and the motor assembly comprises a cooling oil channel, the cooling oil channel is used for cooling the motor assembly, and the cooling oil channel is communicated with the second oil outlet. Compared with the prior art, the second oil outlet of the electric control assembly is communicated with the cooling oil channel of the motor assembly, and cooling oil can directly flow into the motor assembly after flowing through the electric control assembly, so that the motor assembly and the electric control assembly share the oil channel, the utilization rate of the oil is increased, and the electric control cooling efficiency of the motor is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric drive technical field, especially an oil cooling motor electric control system and vehicle. BACKGROUND

[0002] With the high -speed development of new energy vehicles, hybrid transmission also is to the direction of high power, high speed, high integration development, hybrid transmission case is developed from three in one to current twelve in one, this is also one of the main introduction points of many cars to release new models, in order to match the high speed, high power demand of hybrid transmission, need more consider electric control cooling flow self -controlling, make the cooling path structure of hybrid transmission become particularly critical.

[0003] The electric control cooling mode of the existing hybrid special transmission is a water cooling structure, and the motor is mainly water cooled and oil cooled structure, for the multi-in-one transmission, the current structure has the following deficiencies:

[0004] 1. The cooling liquid of the water cooling mode is in contact with the shell to exchange heat by convection, and the shell is in contact with the motor to exchange heat by conduction, and the heat dissipation efficiency is slow, which is common in small power demand motors and cannot meet the high power heat dissipation demand.

[0005] 2. The current water tank cooling liquid flows through the electric control, and the cooling liquid temperature of the electric control outlet is lower than 65 degrees, and the cooling liquid temperature reflows into the vehicle, can be into the motor shell, as the motor cooling input.

[0006] 3. The electric control temperature monitoring needs to arrange temperature sensors at the motor inlet and outlet, and the motor oil temperature monitoring also needs to arrange temperature sensors, and since the electric control motor water and oil are different, the temperature sensor utilization rate is low.

[0007] 4. The water temperature of the transmission is limited by the vehicle VCU, and compared with the electric control MCU control, the signal processing is sensitive, and the temperature field feedback is more accurate. INVENTION CONTENTS

[0008] The utility model aims at providing an oil cooling motor electric control system and vehicle to solve the problems in the prior art, increase the utilization rate of oil, and improve the oil cooling efficiency of the motor electric control.

[0009] In a first aspect, the utility model provides an oil cooling motor electric control system, which comprises:

[0010] An oil cooler, the oil cooler comprises a first oil inlet and a first oil outlet;

[0011] An electric control assembly, the electric control assembly comprises a second oil inlet and a second oil outlet, and the second oil inlet is communicated with the first oil outlet;

[0012] The motor assembly comprises a cooling oil channel for cooling the motor assembly, and the cooling oil channel is communicated with the second oil outlet.

[0013] The oil-cooled motor electric control system as described above, wherein preferably, the outlet end of the second oil inlet is provided with a first temperature sensor.

[0014] The oil-cooled motor electric control system as described above, wherein preferably, the outlet end of the second oil outlet is provided with a second temperature sensor.

[0015] The oil-cooled motor electric control system as described above, wherein preferably, the outlet end of the second oil outlet is provided with an adjusting member for adjusting the oil flow rate flowing out of the electric control assembly.

[0016] The oil-cooled motor electric control system as described above, wherein preferably, the adjusting member is an electromagnetic valve.

[0017] The oil-cooled motor electric control system as described above, wherein preferably, the motor assembly comprises a first housing, and the cooling oil channel is arranged on the first housing.

[0018] The oil-cooled motor electric control system as described above, wherein preferably, the first housing is provided with a first motor and a second motor, and the cooling oil channel is used for cooling the first motor and the second motor.

[0019] The oil-cooled motor electric control system as described above, wherein preferably, the first housing is provided with an oil return port communicated with the cooling oil channel.

[0020] The oil-cooled motor electric control system as described above, wherein preferably, the oil-cooled motor electric control system further comprises an oil suction filter and an oil pump, the inlet end of the oil pump is communicated with the oil suction filter, and the outlet end of the oil pump is communicated with the oil cooler.

[0021] In the second aspect, the utility model provides a kind of vehicle, comprising the oil-cooled motor electric control system of preceding.

[0022] Compared with prior art, the second oil outlet of the electric control assembly is communicated with the cooling oil channel of the motor assembly, cooling oil flows into the motor assembly directly after flowing through the electric control assembly, so that the motor assembly and the electric control assembly share oil channel, increase the utilization rate of oil, and improve the cooling efficiency of motor control. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is one perspective view of the oil-cooled motor electric control system provided by the embodiment of the utility model;

[0024] Figure 2 is another perspective view of the oil-cooled motor electric control system provided by the embodiment of the utility model;

[0025] Figure 3 is a top view of the oil-cooled motor electric control system provided by the embodiment of the utility model.

[0026] Mark explanation:

[0027] 1-oil cooler, 11-first oil inlet, 12-first oil outlet, 2-electric control assembly, 21-second oil inlet, 22-second oil outlet, 3-motor assembly, 31-first shell, 32-first motor, 33-second motor, 4-first temperature sensor, 5-second temperature sensor, 6-adjusting piece, 61-solenoid valve, 7-oil suction filter, 8-oil pump. Specific implementation

[0028] The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model and cannot be explained as the limitation of the utility model.

[0029] In the first aspect, referring to Figures 1 to 3 The utility model provides a kind of oil-cooled motor electric control system, including oil cooler 1, electric control assembly 2 and motor assembly 3, wherein:

[0030] Oil cooler 1 includes first oil inlet 11 and first oil outlet 12, the oil for cooling enters oil cooler 1 by first oil inlet 11, and after heat exchange with cooling medium in oil cooler 1, by first oil outlet 12 flow out.

[0031] Electric control assembly 2 includes second oil inlet 21 and second oil outlet 22, second oil inlet 21 is communicated with first oil outlet 12, the oil that flows out from first oil outlet 12, via second oil inlet 21 enters electric control assembly 2, when flowing through electric control assembly 2, realize the cooling of electric control assembly 2.

[0032] Motor assembly 3 includes cooling oil channel (not shown), cooling oil channel is used to cool motor assembly 3, cooling oil channel is communicated with second oil outlet 22, the oil that flows out from second oil outlet 22 realizes the cooling of motor assembly 3 via cooling oil channel.

[0033] Compared with the water cooling mode for electric control assembly 2 in prior art, the cooling of motor assembly 3 adopts oil cooling mode, electric control assembly 2 and motor assembly 3 are cooled by two circuits respectively.In the embodiment provided in the present application, first oil outlet 12, second oil inlet 21, second oil outlet 22 and cooling oil channel are communicated in sequence, and the oil flows through electric control assembly 2 and motor assembly 3 in sequence, and only one circuit can realize the cooling of electric control assembly 2 and motor assembly 3, so that the utilization rate of oil is improved.

[0034] In order to meet the cooling requirement of the electric control assembly 2, refer to Figure 1 , the outlet end of the second oil inlet 21 is provided with a first temperature sensor 4, the first temperature sensor 4 can monitor the temperature of the oil after heat exchange by the oil cooler 1, that is, the temperature of the oil entering the electric control assembly 2, and further ensure that the temperature of the oil entering the electric control assembly 2 meets the cooling requirement.

[0035] For the electric control assembly 2, the oil flowing out of the second oil outlet 22 needs to continue to cool the motor assembly 3, in order to meet the cooling requirement of the motor assembly 3, continue to refer to Figure 1 , the outlet end of the second oil outlet 22 is provided with a second temperature sensor 5, the second temperature sensor 5 can monitor the temperature of the oil flowing out of the electric control assembly 2, and further judge whether the oil after the first heat exchange can meet the cooling requirement of the motor assembly 3.

[0036] The oil-cooled motor electric control system of the present application only sets two temperature sensors, that is, the temperature of the oil entering the electric control assembly 2 and the temperature of the oil entering the motor assembly 3 can be monitored respectively, compared with the prior art, the number of temperature sensors is reduced, but accurate oil temperature information can still be obtained, and the feedback of the information can make the electric control temperature control more sensitive.

[0037] In order to realize accurate control of the oil flow of the electric control assembly 2 and the motor assembly 3, since the electric control assembly 2 can be adaptively adjusted according to the feedback information of the first temperature sensor 4, only the oil flow entering the motor assembly 3 needs to be controlled. Refer to Figure 1 and Figure 3 , the outlet end of the second oil outlet 22 is provided with an adjusting member 6, the adjusting member 6 is used to adjust the oil flow flowing out of the electric control assembly 2, that is, the oil flow entering the motor assembly 3.

[0038] Preferably, the adjusting member 6 is an electromagnetic valve 61, the electromagnetic valve 61 is arranged at the outlet end of the second oil outlet 22, the oil flow flowing through the motor assembly 3 can be controlled according to the speed, torque and temperature of the motor assembly 3, the opening of the electromagnetic valve 61 is controlled accordingly, and accurate control of the oil flow is realized.

[0039] In a feasible implementation manner, refer to Figure 2 , the motor assembly 3 comprises a first housing 31, a cooling oil channel is arranged on the first housing 31, a first motor 32 and a second motor 33 are arranged in the first housing 31, and the cooling oil channel is used to cool the first motor 32 and the second motor 33. The oil flowing out of the electric control assembly 2 is distributed to the first motor 32 and the second motor 33 in the cooling oil channel to cool the first motor 32 and the second motor 33 respectively.

[0040] Further, in order to realize the oil circulation cooling, the first shell 31 is further provided with an oil return port (not shown) which is communicated with the cooling oil channel. After the motor assembly 3 is cooled, the oil flows out through the oil return port and enters the cooling circulation.

[0041] With the circulation cooling of the oil, particles or impurities are mixed in the oil, which will affect the cooling effect of the oil. In order to solve the problem, referring to Figure 2 As shown in the figure, the oil-cooled motor electric control system further comprises an oil suction filter 7 and an oil pump 8. The inlet end of the oil pump 8 is communicated with the oil suction filter 7, and the outlet end of the oil pump 8 is communicated with the oil cooler 1.

[0042] The oil pump 8 can provide power for the oil to enter the oil cooler 1. Before the oil enters the oil cooler 1, it needs to be filtered by the oil suction filter 7 to remove the particles or impurities in the oil, so that the oil can maintain good cooling effect.

[0043] In the second aspect, the utility model provides a kind of vehicle, comprising the oil-cooled motor electric control system described above. Since the oil-cooled motor electric control system accurately detects the temperature of the oil used for cooling to meet the cooling needs of the electric control assembly 2 and the motor assembly 3, it is beneficial to improve the cooling performance of the whole vehicle.

[0044] The above detailed description of the embodiments shown in the drawings explains the structure, features and effects of the utility model. The above description is only the preferred embodiment of the utility model, but the utility model is not limited by the drawings shown. Any change or modification made in accordance with the concept of the utility model, or equivalent embodiment with equivalent changes, shall be within the scope of protection of the utility model.

Claims

1. An oil-cooled electric motor electronic control system, characterized by, The oil-cooled motor electric control system comprises: an oil cooler comprising a first oil inlet and a first oil outlet; an electric control assembly comprising a second oil inlet and a second oil outlet, the second oil inlet being in communication with the first oil outlet; a motor assembly comprising a cooling oil channel for cooling the motor assembly, the cooling oil channel being in communication with the second oil outlet.

2. The oil-cooled electric motor electronic control system of claim 1, wherein, An outlet end of the second oil inlet is provided with a first temperature sensor.

3. The oil-cooled electric motor electronic control system of claim 1, wherein, An outlet end of the second oil outlet is provided with a second temperature sensor.

4. The oil-cooled electric motor electronic control system of claim 3, wherein, An outlet end of the second oil outlet is provided with an adjusting member for adjusting the oil flow rate out of the electric control assembly.

5. The oil-cooled electric motor electronic control system of claim 4, wherein, The adjusting member is an electromagnetic valve.

6. The oil-cooled motor electronic control system of claim 1, wherein, The motor assembly comprises a first housing, and the cooling oil channel is arranged on the first housing.

7. The oil-cooled electric motor electronic control system of claim 6, wherein, The first housing is provided with a first motor and a second motor, and the cooling oil channel is used for cooling the first motor and the second motor.

8. The oil-cooled electric motor electronic control system of claim 7, wherein, The first housing is provided with an oil return port in communication with the cooling oil channel.

9. The oil-cooled motor electronic control system of claim 1, wherein, The oil-cooled motor electric control system further comprises an oil suction filter and an oil pump, an inlet end of the oil pump being in communication with the oil suction filter, and an outlet end of the oil pump being in communication with the oil cooler.

10. A vehicle characterized by comprising: The oil-cooled motor electric control system comprises any one of claims 1 to 9.

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