Oil cooling type water pump shell structure

Abstract

The utility model discloses an oil cooling type water pump shell structure which comprises a horizontally-installed water pump shell, the water pump shell comprises a motor shell body and a controller shell body, a motor cavity is formed in the motor shell body, a controller cavity is formed in the controller shell body, a cooling cavity surrounding the periphery of a motor is formed in the motor shell body, and a water inlet is formed in the motor shell body. An oil inlet pipe communicated with the cooling cavity is arranged on the outer wall of the motor shell, an oil outlet pipe communicated with the inner motor cavity is arranged on the outer wall of the controller shell, an oil guide hole is formed in a partition plate between the cooling cavity and the controller cavity, and oil enters the cooling cavity from the oil inlet pipe to cool the motor. Oil liquid enters the controller cavity through the oil guide hole to cool the controller, and finally the oil liquid flows out of the oil outlet pipe. The oil cooling type water pump shell structure is convenient to machine and manufacture, high in cooling efficiency, capable of cooling a motor in a water pump and cooling a controller PCBA in the water pump, good in heat dissipation effect and capable of guaranteeing stable work of the water pump.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted water pumps, in particular to an oil-cooled water pump housing structure. Background Art

[0002] With the development of the economy, the automotive industry has developed rapidly. To ensure the stable operation of the automotive powertrain, a perfect actuator needs to be equipped. Therefore, various actuators with motors are widely used in the automotive powertrain, including hydraulic actuators, shift actuators, brake boosters, etc.

[0003] To ensure the cooling of the engine, a water pump is required to provide power for the coolant circulation. The water pump itself is powered by an internal motor. With the increasing development of the automotive powertrain, the heat dissipation requirements for the water pump are getting higher and higher. In a limited volume, it is necessary to increase the power as much as possible. The increase in power will also cause a significant increase in the heat generation of the water pump. The increase in heat generation will lead to a decrease in the efficiency of the water pump, and long-term high-temperature operation will also affect the service life of the water pump. Therefore, there is a need for improvement. Summary of the Utility Model

[0004] The utility model provides an oil-cooled water pump housing structure that is easy to process and manufacture, has high cooling efficiency, can cool both the motor inside the water pump and the controller PCBA inside the water pump, has good heat dissipation effect, and ensures the stable operation of the water pump; it solves the technical problems existing in the prior art that the current water pump cooling structure is relatively single, the cooling efficiency of the water pump is low, the working efficiency of the water pump is low, and the working life of the water pump is greatly reduced.

[0005] The above technical problems of the utility model are solved by the following technical solutions: an oil-cooled water pump housing structure includes a horizontally installed water pump housing. The water pump housing includes a motor housing and a controller housing. A motor cavity is opened in the motor housing, and a controller cavity is opened in the controller housing. A cooling cavity surrounding the motor is opened in the motor housing. An oil inlet pipe communicating with the cooling cavity is provided on the outer wall of the motor housing, and an oil outlet pipe communicating with the internal motor cavity is provided on the outer wall of the controller housing. An oil guiding hole is opened on the partition between the cooling cavity and the controller cavity. The oil enters the cooling cavity through the oil inlet pipe to cool and lower the temperature of the motor, and the oil enters the controller cavity through the oil guiding hole to cool and lower the temperature of the controller. Finally, the oil flows out through the oil outlet pipe. The cooling cavity in the utility model is integrally formed with the motor housing to ensure the sealing performance of the cooling cavity. During installation, the oil inlet pipe and the oil outlet pipe are connected to the vehicle-mounted oil cooling pipeline. The oil enters the cooling cavity through the oil inlet pipe to cool and lower the temperature of the motor stator, and then the oil enters the cooling cavity to cool and lower the temperature of the motor. The oil fills the controller cavity, and finally the oil flows out through the oil outlet pipe to complete the circulation of the oil and the cooling of the water pump.

[0006] Preferably, the cooling cavity is an annular cavity, and the cooling cavity is not connected to the motor cavity. In the present utility model, the cooling cavity is integrally formed with the motor housing to ensure the sealing performance of the cooling cavity. The annular cooling cavity can increase the contact area with the motor and quickly cool down the internal motor.

[0007] Preferably, the oil inlet pipe and the oil outlet pipe are located on the same side, and the oil inlet pipe and the oil outlet pipe are arranged on one side of the top of the water pump housing. The oil inlet pipe and the oil outlet pipe being located on the same side enables the oil to complete cooling through circulation, and can better cool down the motor and the controller PCBA.

[0008] Preferably, the oil guiding hole is opened on the side opposite to the oil inlet pipe and the oil outlet pipe, that is, the oil guiding hole is installed at the bottom of the water pump housing. In the present utility model, the oil guiding hole is installed at the bottom of the water pump housing, so that the cooled oil will gradually fill the cooling cavity and the controller cavity, and finally flow out through the oil outlet pipe, which can better cool down the motor and the controller PCBA.

[0009] Preferably, the oil guiding holes are arranged in 2 symmetrically set groups. The 2 groups of oil guiding holes are adjacent and spaced apart, which can increase the oil flow rate and ensure the cooling efficiency.

[0010] Preferably, the oil inlet pipe and the oil outlet pipe are connected to the vehicle-mounted oil cooling pipeline. In the present utility model, the oil inlet pipe and the oil outlet pipe are connected to the vehicle's overall oil cooling pipeline, and the oil circulation does not require its own power supply, with high efficiency and low energy consumption.

[0011] Therefore, a water pump housing structure with oil cooling of the present utility model has the following advantages: being easy to process and manufacture, having high cooling efficiency, being able to cool the motor inside the water pump and also being able to cool down the controller PCBA inside the water pump, having good heat dissipation effect, ensuring the stable operation of the water pump, and increasing the working life of the water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a three-dimensional structural schematic diagram of a water pump housing structure with oil cooling of the present utility model.

[0013] Figure 2 is Figure 1 the front view structural schematic diagram of

[0014] Figure 3 is Figure 1 the front view sectional structural schematic diagram of

[0015] Figure 4 is Figure 1 the left view sectional structural schematic diagram of

[0016] In the figure, there are a water pump housing 1, a motor housing 2, a controller housing 3, a motor chamber 4, a controller cavity 5, a cooling chamber 6, an oil inlet pipe 7, an oil outlet pipe 8, and an oil guiding hole 9. Detailed implementation mode

[0017] The technical solution of the utility model will be further specifically described below through embodiments in conjunction with the accompanying drawings.

[0018] Embodiment:

[0019] As Figure 1 and 2 shown in FIGS. 3 and 4, an oil-cooled water pump housing structure includes a horizontally and laterally installed water pump housing 1, the water pump housing 1 includes a motor housing 2 at the front section and a controller housing 3 at the rear section, a motor chamber 4 is provided in the motor housing 2, a controller cavity 5 is provided in the controller housing 3, a motor stator etc. is installed in the motor chamber 4, and a controller PCBA is installed in the controller housing 3.

[0020] A cooling chamber 6 surrounding the motor is provided on the inner side of the motor housing 2. The cooling chamber 6 is an annular cavity, and the cooling chamber 6 is not communicated with the motor chamber 4. An oil inlet pipe 7 communicated with the cooling chamber 6 is integrally formed on the outer wall of the top of the motor housing 2.

[0021] The oil inlet pipe 7 and the oil outlet pipe 8 are connected to the vehicle-mounted oil cooling pipeline. The oil inlet pipe 7 and the oil outlet pipe 8 are on the same side, and the oil inlet pipe 7 and the oil outlet pipe 8 are provided on one side of the top of the water pump housing 1.

[0022] An oil outlet pipe 8 communicated with the inner cavity of the controller is integrally formed on the outer wall of the top of the controller. An oil guiding hole 9 is provided on the partition at the bottom between the cooling chamber 6 and the controller cavity 5.

[0023] There are 2 groups of oil guiding holes 9, and the oil guiding holes 9 are provided on the side opposite to the oil inlet pipe 7 and the oil outlet pipe 8, that is, the oil guiding holes 9 are installed on the bottom side of the water pump housing 1.

[0024] The cooling chamber 6 in the utility model is integrally formed with the motor housing 2 to ensure the sealing performance of the cooling chamber 6. During installation, the oil inlet pipe 7 and the oil outlet pipe 8 are connected to the vehicle-mounted oil cooling pipeline. The oil liquid enters the cooling chamber 6 from the oil inlet pipe 7 to cool down the motor stator, then the oil liquid enters the cooling chamber 6 to cool down the motor. The oil liquid fills the controller cavity 5, and finally the oil liquid flows out from the oil outlet pipe 8 to complete the circulation of the oil liquid and the cooling of the water pump.

[0025] The oil inlet pipe 7 and the oil outlet pipe 8 in the utility model are connected to the vehicle's whole vehicle oil cooling pipeline. The oil liquid circulation does not require self-provided power, with high efficiency and low energy consumption. The utility model can not only dissipate heat from the motor, but also the oil circuit passes through the controller, and has a very good heat dissipation effect on the controller.

Claims

1. An oil-cooled water pump housing structure, comprising a horizontally installed water pump housing, the water pump housing including a motor housing and a controller housing, a motor cavity being provided in the motor housing, and a controller cavity being provided in the controller housing, characterized in that: A cooling cavity surrounding the motor is provided inside the motor housing. An oil inlet pipe communicating with the cooling cavity is provided on the outer wall of the motor housing, and an oil outlet pipe communicating with the internal motor cavity is provided on the outer wall of the controller housing. An oil guiding hole is provided on the partition between the cooling cavity and the controller cavity. The oil enters the cooling cavity through the oil inlet pipe to cool the motor, the oil enters the controller cavity through the oil guiding hole to cool the controller, and finally the oil flows out through the oil outlet pipe.

2. The oil-cooled water pump housing structure according to claim 1, characterized in that: The cooling cavity is an annular cavity, and the cooling cavity is not communicated with the motor cavity.

3. The oil-cooled water pump housing structure according to claim 1, characterized in that: The oil inlet pipe and the oil outlet pipe are located on the same side, and the oil inlet pipe and the oil outlet pipe are arranged on one side of the top of the water pump housing.

4. The oil-cooled water pump housing structure according to claim 1, wherein: The oil guiding hole is opened on the side opposite to the oil inlet pipe and the oil outlet pipe, that is, the oil guiding hole is installed at the bottom of the water pump housing.

5. The oil-cooled water pump housing structure according to claim 4, characterized in that: The oil guiding holes are arranged in 2 groups symmetrically.

6. The oil-cooled water pump housing structure according to claim 1, characterized in that: The oil inlet pipe and the oil outlet pipe are connected to the vehicle-mounted oil cooling pipeline.

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