Oil pump structure with self-filtering effect

Abstract

The utility model relates to the technical field of actuators. An oil pump structure with a self-filtering effect comprises an oil pump body, the oil pump body comprises an external oil pump shell, an inner rotor and an outer rotor are arranged in the oil pump shell, a hollow rotating shaft is arranged in the center of the inner rotor, a pump head is arranged at the front end of the oil pump body, and a controller module is arranged at the rear end of the oil pump body; an oil inlet and an oil outlet are formed in the pump head, the oil pump body is matched with a client side, a filter screen is arranged at the oil flowing position of the middle section of the oil pump body, and oil flowing into the oil pump through the oil inlet is filtered through the filter screen firstly. The utility model provides an oil pump structure with a self-filtering effect, which can solve the interference of sundries on the work of an oil pump and can meet higher actual requirements of users. The technical problems that in the prior art, an existing oil pump is single in structure, some impurities enter the oil pump easily, the oil pump is blocked, the service life and working stability of the oil pump are affected, and higher use requirements of users cannot be met are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to actuator technical field especially relates to an oil pump structure with self-filtering effect. BACKGROUND

[0002] With the development of economy, people's living standards gradually improve, and the car has become one of the public's preferred means of transportation. The automobile industry develops rapidly, and with the development of car performance to more safe, more reliable, more stable, environmental protection and energy saving direction, in order to ensure the stable operation of automobile power assembly, it is necessary to equip perfect actuator, therefore each actuator with motor is used in automobile power assembly in large quantities, including hydraulic actuator, gear selection actuator, brake booster and the like.

[0003] In order to ensure the cooling and lubrication of each part of the engine, an electronic oil pump is needed to provide power for oil circulation, and the electronic oil pump is controlled by the controller system to provide power for the internal motor, drive the impeller (inner and outer rotor) to drive the oil circulation to cool and lubricate the related parts. The current new type of electronic oil pump is composed of controller, motor and pump head inner and outer rotor. In order to ensure the stable connection of each structure and the stable work of the product, the overall structure design has higher requirements, especially the filtration and cooling. The current oil pump structure is relatively simple, the cooling effect is not ideal, some impurities enter the oil pump and are easy to be stuck, which affects the working stability and working life of the oil pump, so it is necessary to improve. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of oil pump structure with self-filtering effect by structure further improvement to oil circuit, cooperate with the structure such as rotating shaft and realize more good heat dissipation, and can solve the interference of sundries to oil pump work, can satisfy the higher actual demand of user, the utility model discloses a kind of oil pump structure with self-filtering effect;Solve the technical problems that the structure of current oil pump is single in prior art, the heat dissipation effect of oil pump is not ideal, and some impurities are easy to enter into oil pump, cause the phenomenon that oil pump is stuck, affect the service life and working stability of oil pump, cannot satisfy the higher use demand of user.

[0005] The technical problems above are solved by the following technical scheme: the oil pump structure with self-filtering effect, comprising an oil pump body, wherein the oil pump body comprises an external oil pump shell, an inner rotor and an outer rotor are arranged in the oil pump shell, a hollow rotating shaft is arranged at the center of the inner rotor, a pump head is arranged at the front end of the oil pump body, and a controller module is arranged at the rear end of the oil pump body; an oil inlet and an oil outlet are arranged on the pump head, the oil pump body is matched with a client end, a filter screen is arranged at an oil liquid flow passage in the middle section of the oil pump body, and the oil liquid flowing into the oil pump through the oil inlet is filtered through the filter screen. When the oil pump works, the oil liquid is divided into two parts, one part of the oil liquid is pressed into the controller through the hollow rotating shaft under the action of the high-pressure area to cool the controller, and the other part of the oil liquid flows into the oil pump through the oil inlet and is combined with the oil liquid flowing out of the controller, and then the oil liquid is filtered through the filter screen and flows into the inner rotor and the outer rotor, so that impurities are filtered out, the service life and the working stability of the parts are ensured, the heat dissipation problem is solved by using the oil liquid, and the working efficiency of the oil pump is not affected.

[0006] Preferably, the oil pump body is of a sectional structure, the middle section of the oil pump body has a smaller diameter, a flow passage is arranged at the matching position of the middle section of the oil pump body and the client end, and the oil liquid flows into the flow passage through the oil inlet and then enters the oil pump body through the filter screen. When the oil pump works, most of the oil liquid flows into the flow passage through the oil inlet of the pump head and is combined with the oil liquid cooled by the controller, and then the oil liquid flows into the inner rotor and the outer rotor after being filtered through the filter screen, so that impurities are filtered out, the service life and the working stability of the parts are ensured, the heat dissipation problem is solved by using the oil liquid, and the working efficiency of the oil pump is not affected.

[0007] Preferably, sealing rings are arranged on the oil pump body at the front end and the rear end of the flow passage. The sealing rings can ensure the sealing effect of each part and prevent the oil liquid from flowing to other areas.

[0008] Preferably, a connecting oil port is arranged on the middle section of the oil pump body and connected with the oil inlet and the flow passage. The connecting oil port and the oil inlet cooperate to change the flow direction of the oil liquid, so that the oil liquid flows into the flow passage, is filtered, and then flows into the oil pump.

[0009] Preferably, a flow port is arranged on the oil pump shell at one side of the filter screen, the oil liquid cooled by the controller module flows out through the flow port, is combined, and then flows into the oil pump body after being filtered through the filter screen. A small amount of oil liquid is pressed into the controller module through the hollow rotating shaft under the action of the high-pressure area, the oil liquid cools the controller, the oil liquid cooled by the controller flows out from the flow port, is combined, and then flows downward after being filtered.

[0010] As preferred, the confluence port is arranged on the top of the oil pump shell. The confluence port arranged on the top can ensure that the oil flows out of the confluence port only after filling the controller cavity, thereby ensuring sufficient heat dissipation of each electronic component.

[0011] As preferred, the filter screen is in an arc shape. The structure of the filter screen can be adjusted according to different actual requirements. The filter screen in an arc shape is taken as an example for illustration. The arc-shaped filter screen structure is in connection with the oil pump structure on one hand, and is more smooth in structure, and has a large area and good filtering effect on the other hand.

[0012] As preferred, the controller module comprises an internal PCBA and a controller cover plate matched with the oil pump body. The controller cover plate is in a hollow structure. When the oil pump works, the oil is divided into two parts. A small part of the oil is pressed into the controller module by the hollow shaft under the action of the pressure in the high-pressure area, and the oil dissipates heat for the controller. The controller cover plate in the hollow structure can make the oil flow more easily.

[0013] Therefore, the oil pump structure with self-filtering effect has the following advantages: the oil circuit is further improved by the structure, the heat dissipation is better by cooperating with the shaft and other structures, the interference of sundries on the work of the oil pump can be solved, and higher actual requirements of users can be met. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a perspective structural schematic view of the oil pump structure with self-filtering effect.

[0015] Figure 2 is Figure 1 a front view structural schematic view.

[0016] Figure 3 is Figure 1 a top view structural schematic view.

[0017] Figure 4 is Figure 1 a left view structural schematic view.

[0018] Figure 5 is Figure 1 a right view structural schematic view.

[0019] Figure 6 is an oil pump body and client assembly structural schematic view in the utility model.

[0020] Figure 7 is Figure 6 a top view sectional structural schematic view.

[0021] Figure 8 is Figure 7 a perspective structural schematic view of the controller cover plate.

[0022] In the figure, the oil pump body 1, the inner rotor 2, the outer rotor 3, the rotating shaft 4, the sealing ring 5, the oil inlet 6, the oil outlet 7, the pump head 8, the controller cover plate 9, the flow cavity 10, the connecting oil port 11, the filter screen 12, and the flow port 13. DETAILED DESCRIPTION

[0023] The technical scheme of the utility model will be further specifically explained below by examples in combination with the drawings.

[0024] Embodiment:

[0025] As Figure 1 and 2 and 3 and 4 and 5 and 6 and 7 and 8, an oil pump structure with self-filtering effect, comprising an oil pump body 1, the oil pump body 1 comprising an external oil pump shell and an internal inner rotor 2 and outer rotor 3, the inner rotor 2 being provided with a hollow rotating shaft 4 at the center, the oil pump body 1 being provided with a pump head 8 at the front end, the pump head 8 being provided with a sealing ring 5 on the outer wall, the pump head 8 being provided with an oil inlet 6 and an oil outlet 7, and the oil pump body 1 being provided with a controller module at the rear end.

[0026] The controller module comprises an internal PCBA and a controller cover plate 9 matched with the oil pump body 1, and the controller cover plate 9 is a hollow structure.

[0027] The oil pump body 1 is of a segmented structure, the middle segment of the oil pump body 1 being smaller in diameter, the middle segment of the oil pump body 1 being provided with a flow cavity 10 matched with the client, and the middle segment of the oil pump body 1 being provided with a connecting oil port 11 connecting the oil inlet 6 and the flow cavity 10.

[0028] The middle segment of the oil pump body 1 is provided with a filter screen 12, and the filter screen 12 is of an arc structure; oil flows into the oil pump body 1 through the filter screen 12 after flowing into the flow cavity 10 through the oil inlet 6.

[0029] The oil pump body 1 at both ends of the flow cavity 10 is provided with a sealing ring 5.

[0030] The oil pump shell at the rear side of the filter screen 12 is provided with a flow port 13, the flow port 13 being provided at the top of the oil pump shell, the oil flowing out of the controller module after heat dissipation flowing back to the flow port 13, and then flowing into the oil pump body 1 after being filtered by the filter screen 12.

[0031] The oil pump body 1 is matched with the client, and when the oil pump is working, the oil is divided into two parts, a small part of the oil is pressed into the controller module through the hollow rotating shaft 4 under the action of the pressure in the high-pressure area, the oil is used for heat dissipation of the controller, the hollow structure of the controller cover plate 9 can make the oil flow more easily, and the flow port 13 located at the top can ensure that the oil flows out of the flow port 13 only after the controller cavity is filled, thereby ensuring sufficient heat dissipation of each electronic component.

[0032] When the oil pump is working, most of the oil flows from the oil inlet 6 of the pump head 8 into the flow cavity 10 through the connecting oil port 11, and is combined with the oil after heat dissipation of the controller. After filtering through the filter screen 12, the oil enters the inner and outer rotors 3 of the oil pump to work, which can ensure that impurities and the like do not flow into the internal structure and the client product, filter the impurities and the like outside, ensure the service life and working stability of the parts, and solve the heat dissipation problem by using the oil, without affecting the working efficiency of the oil pump.

[0033] The specific embodiments described herein are merely illustrative of the principles of the application. Various modifications or changes in addition or substitution to the described specific embodiments can be made by those skilled in the art of the present application without departing from the spirit of the present application or exceeding the scope of the appended claims.

Claims

1. An oil pump structure with self-filtration effect, characterized in that: The system includes an oil pump body, which comprises an external oil pump housing. Inside the oil pump housing are an inner rotor and an outer rotor. The inner rotor has a hollow rotating shaft at its center. The front end of the oil pump body is equipped with a pump head, and the rear end of the oil pump body is equipped with a controller module. The pump head has an oil inlet and an oil outlet. The oil pump body is matched with the client. A filter screen is installed at the oil flow point in the middle section of the oil pump body. The oil flowing into the oil pump through the oil inlet is first filtered by the filter screen.

2. The oil pump structure with self-filtration effect according to claim 1, characterized in that: The oil pump body has a segmented structure. The middle section of the oil pump body has a smaller diameter. A flow cavity is left at the mating point between the middle section of the oil pump body and the client. The oil flows into the flow cavity from the oil inlet and then enters the oil pump body through the filter screen.

3. The oil pump structure with self-filtration effect according to claim 2, characterized in that: The oil pump body at both ends of the flow cavity is equipped with sealing rings.

4. The oil pump structure with self-filtration effect according to claim 2, characterized in that: The oil pump body has a connecting port on the middle section that connects the oil inlet and the flow chamber.

5. The oil pump structure with self-filtration effect according to claim 1, characterized in that: A manifold is provided on the oil pump housing on one side of the filter screen. The oil that has been cooled by the controller module flows out through the manifold and then merges back into the main body of the oil pump after being filtered by the filter screen.

6. The oil pump structure with self-filtration effect according to claim 5, characterized in that: The manifold is located at the top of the oil pump housing.

7. The oil pump structure with self-filtration effect according to claim 5, characterized in that: The filter screen has an arc-shaped structure.

8. The oil pump structure with self-filtration effect according to claim 1, characterized in that: The controller module includes an internal PCBA and a controller cover plate that matches the oil pump body. The controller cover plate has a hollow structure.

Images