Oil pump motor

Abstract

An oil pump motor comprises an end cover part, and further comprises a rotor assembly, a stator part and a control assembly, the stator part and the control assembly are fixedly arranged on the end cover part, the rotor assembly is rotationally arranged on the end cover part, one end of the rotor assembly is arranged on the periphery of the stator part in a sleeving mode, and the other end of the rotor assembly is arranged on the end cover part. The other end of the rotor assembly penetrates out of the end cover component and is in transmission connection with the oil pump, and the stator component is electrically connected with the control assembly. The oil pump motor provided by the utility model is simple in structure, and the manufacturing cost of the oil pump motor is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and particularly relates to an oil pump motor. Background Art

[0002] In the hydraulic system of a device, an oil pump motor provides power for the oil pump to make the oil pump operate and supply oil to the device. The oil pump motor realizes the conversion or transmission of electrical energy according to the law of electromagnetic induction.

[0003] For the oil pump motor of the prior art, as disclosed in the patent document No. CN111224499A, an oil pump and its motor are provided. The motor includes a stator and a rotor installed in the stator. The stator includes a stator core. The motor further includes a metal connecting pipe extending along the axial direction of the motor outside the stator core, and an injection molded housing covering the outer circumferences of both ends of the stator core and the metal connecting pipe. The metal connecting pipe has an axial connecting through hole for an axial connecting member to pass through. The problem is that for the oil pump motor with the above structure, a capacitor motor is adopted. The internal structure of the capacitor motor is complex, and the types and quantities of parts constituting the capacitor motor are large, resulting in a cumbersome processing and assembly process of the capacitor motor and a high manufacturing cost of the capacitor motor. In addition, when the capacitor motor works, the temperature rises rapidly and a large amount of heat is generated. The high temperature will accelerate the wear of the internal parts of the motor, resulting in the motor being prone to abnormal noise, affecting the service life and performance of the motor.

[0004] Therefore, further improvement is needed. Summary of the Utility Model

[0005] The purpose of the utility model is to at least overcome one of the deficiencies existing in the above prior art, and to provide an oil pump motor with a simple structure, which reduces the manufacturing cost of the oil pump motor.

[0006] To achieve the above purpose, the technical solution provided by the embodiment of the utility model is:

[0007] An oil pump motor includes an end cover assembly. The oil pump motor further includes a rotor assembly, a stator assembly, and a control assembly. The stator assembly and the control assembly are fixedly arranged on the end cover assembly. The rotor assembly is rotatably arranged on the end cover assembly. One end of the rotor assembly is sleeved outside the stator assembly, and the other end of the rotor assembly passes through the end cover assembly and is in transmission connection with the oil pump. The stator assembly is electrically connected to the control assembly.

[0008] The end cover component is provided with a mounting column, and the mounting column is arranged at the middle part of the end surface of the end cover component away from the oil pump. The mounting column includes a first mounting part and a second mounting part, and the first mounting part is located below the second mounting part. The control component includes a control board, and the control board is mounted on the first mounting part so that the control component is mounted on the end cover component. The stator component includes a stator bracket, and the stator bracket is mounted on the second mounting part so that the stator component is mounted on the end cover component.

[0009] A first positioning and mounting structure is provided between the control component and the end cover component, and a first mounting hole is provided on the control board. The first positioning and mounting structure includes a first positioning recess provided on the control board, and a first positioning protrusion provided on the mounting column and corresponding to the first positioning recess. The first mounting hole matches the first mounting portion. The first positioning recesses are a plurality of first positioning recesses and are circumferentially arranged on the inner side wall of the first mounting hole. The first positioning protrusions are a plurality of first positioning recesses and are circumferentially arranged on the outer peripheral wall of the first mounting portion. The first positioning recess matches the first positioning protrusion. The first mounting portion extends into the first mounting hole. The first positioning recess and the first positioning protrusion are mutually clamped. The control board is positioned and sleeved on the first mounting portion and abuts against the end surface of the end cover component, so that the control component is positioned and mounted on the end cover component.

[0010] A first locking structure is provided between the control assembly and the end cover component, the first locking structure comprising a first locking through hole provided on the control panel, a first locking hole provided on the end surface of the end cover component and corresponding to the first locking hole, and a first fastening component cooperating with the first locking hole, the first fastening component passes through the first locking through hole and is screwed together with the first locking hole, so that the control assembly is locked on the end cover component.

[0011] A second positioning and mounting structure is provided between the stator component and the end cover component, the stator bracket is provided with a second mounting hole, the second positioning and mounting structure includes a second positioning recessed portion provided on the stator bracket, and a second positioning convex portion provided on the mounting column and corresponding to the second positioning recessed portion, the second mounting hole matches the second mounting portion, the second positioning recessed portions are a plurality of and are circumferentially arranged on the inner side wall of the second mounting hole, the second positioning convex portions are a plurality of and are circumferentially arranged on the outer peripheral wall of the second mounting portion, the second positioning recessed portion matches the second positioning convex portion, the second mounting portion extends into the second mounting hole, the second positioning recessed portion and the second positioning convex portion are mutually clamped, the stator bracket is positioned and sleeved on the second mounting portion and abuts against the top end of the first mounting portion, so that the stator component is positioned and mounted on the end cover component.

[0012] The rotor assembly includes a rotating shaft, a rotor shell, and a magnetic ring component. The rotating shaft is rotatably arranged on the end cover component. The magnetic ring component is fixedly mounted on the rotor shell and sleeved on the periphery of the stator component. The rotor shell is fixedly mounted on one end of the rotating shaft, and the other end of the rotating shaft passes through the end cover component and is transmission-connected to the oil pump.

[0013] The magnetic ring component and the rotor housing are in interference fit, and the rotor housing and the rotating shaft are in interference fit.

[0014] The oil pump motor further includes a rolling component, which is arranged on the end face of the end cover component and located between the rotating shaft and the end cover component. A locking component for locking the rolling component to the end cover component is provided on the rotating shaft, and the locking component is clamped on the outer peripheral wall of the rotating shaft.

[0015] The oil pump motor further includes a hood, which is arranged on the end face of the end cover component away from the oil pump. A third installation structure is provided between the hood and the end cover component. The third installation structure includes a third installation through hole provided on the hood, a third installation hole provided on the end cover component corresponding to the third installation through hole, and a third fastening component matched with the third installation hole. The third fastening component passes through the third installation through hole and is screwed with the third installation hole to install the hood on the end cover component.

[0016] The control component includes a wire component for electrically connecting the component to an external power supply. A wire hole for the wire component to pass through the hood is provided on the hood, and the wire hole is arranged on the side wall of the hood.

[0017] The beneficial effects of the present utility model are as follows:

[0018] Through the oil pump motor of the above technical solution, the present utility model includes a body, a rotor assembly, a stator component and a control component. The rotor assembly, the stator component and the control component are assembled on the body, reducing the types and quantities of parts for assembling the oil pump motor, simplifying the structure of the oil pump motor, and reducing the manufacturing cost of the oil pump motor.

[0019] In addition, for the oil pump motor of the above technical solution, during operation, its temperature rises slowly, slowing down the wear rate of the internal parts of the oil pump motor, reducing the abnormal noise of the oil pump motor, and extending the service life and performance of the oil pump motor. Brief Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of an oil pump motor according to an embodiment of the present utility model.

[0021] Figure 2 It is an exploded view of an oil pump motor according to an embodiment of the present utility model.

[0022] Figure 3 It is an exploded view of an oil pump motor according to an embodiment of the present utility model.

[0023] Figure 4 It is a schematic structural diagram of a control component according to an embodiment of the present utility model.

[0024] Figure 5This is a schematic structural diagram of a stator component according to an embodiment of the present utility model.

[0025] Figure 6 This is an exploded view of a rotor assembly according to an embodiment of the present utility model.

[0026] Figure 7 This is a cross-sectional view of a rotor assembly according to an embodiment of the present utility model.

[0027] Figure 8 This is an exploded view of an end cover component according to an embodiment of the present utility model. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0029] See Figure 1-8The oil pump motor includes an end cover component 1, and the oil pump motor also includes a rotor component 2, a stator component 3, and a control component 4. The stator component 3 and the control component 4 are fixedly arranged on the end cover component 1. Specifically, in this embodiment, a mounting column 101 is provided on the end cover component 1, and the mounting column 101 is arranged at the middle of the end surface of the end cover component 1 away from the oil pump. The mounting column 101 includes a first mounting portion 1011 and a second mounting portion 1012. The first mounting portion 1011 is located below the second mounting portion 1012, and the radial dimension of the second mounting portion 1012 is slightly smaller than the radial dimension of the first mounting portion 1011. The control component 4 includes a control board 401 and a wire component for electrically connecting the control component 4 to an external power supply. When the control board 401 is mounted on the first mounting portion 1011 from top to bottom, the control component 4 is mounted on the end cover component 1. The stator component 3 is preferably a stator core, which includes a stator bracket 301. When the stator bracket 301 is mounted from top to bottom, the stator bracket 301 is mounted from top to bottom. When the lower sleeve is mounted on the second mounting portion 1012, the stator component 3 is mounted on the end cover component 1, and the stator component 3 is located above the control component 4, and the rotor component 2 is rotatably arranged on the end cover component 1. Specifically, in this embodiment, the rotor component 2 includes a rotating shaft 201, a rotor shell 202, and a magnetic ring component 203. The rotating shaft 201 is rotatably arranged on the end cover component 1, and the magnetic ring component 203 is fixedly mounted on the rotor shell 202 and sleeved on the periphery of the stator component 3. The rotor shell 202 is fixedly mounted on one end of the rotating shaft 201, and the other end of the rotating shaft 201 passes through the end cover component 1 and is connected to the oil pump transmission. The stator component 3 and the rotor component 2 can be assembled by conventional installation means, and the rotor component 2 and the stator component 3 are electrically connected to the control component 4 respectively through the wire component, so that the operation of the oil pump motor can be realized, the types and quantities of parts for assembling the oil pump motor are reduced, the structure of the oil pump motor is simple, and the manufacturing cost of the oil pump motor is reduced.

[0030] In addition, the oil pump motor of the above technical solution has a slow temperature rise rate when working, which slows down the wear rate of the internal parts of the oil pump motor, reduces the abnormal noise of the oil pump motor, and extends the service life and performance of the oil pump motor.

[0031] Furthermore, a first positioning and mounting structure is provided between the control component 4 and the end cover component 1. Specifically, in this embodiment, a first mounting hole 4011 is provided on the control board 401. The first positioning and mounting structure includes a first positioning recess 4012 provided on the control board 401 and a first positioning protrusion 1013 provided on the mounting post 101 and corresponding to the first positioning recess 4012. The shape of the first mounting hole 4011 is preferably circular, and the radial cross-section of the first mounting portion 1011 is preferably circular. The radial dimension of the first mounting hole 4011 is the same as the radial dimension of the first mounting portion 1011, so that the two match each other. The number of the first positioning recesses 4012 is preferably six and is circumferentially arranged on the inner side wall of the first mounting hole 4011. The number of the first positioning protrusions 1013 corresponding to the first positioning recesses 4012 is preferably six and is circumferentially arranged on the outer peripheral wall of the first mounting portion 1011. The shape and size of the first positioning recess 4012 match the shape and size of the first positioning protrusion 1013, so that the first positioning protrusion 1013 can extend into the first positioning recess 4012. When the first mounting portion 1011 extends into the first mounting hole 4011, the first positioning recess 4012 and the first positioning protrusion 1013 are engaged with each other, and the control board 401 is positioned and sleeved on the first mounting portion 1011, and the bottom surface of the control board 401 abuts against the end surface of the end cover component 1. Through the above technical solution, the control component 4 is positioned and mounted on the end cover component 1, which can be understood by those skilled in the art.

[0032] Furthermore, a first locking structure is provided between the control component 4 and the end cover component 1. Specifically, in this embodiment, the first locking structure includes a first locking through hole 4013 provided on the control board 401, a first locking hole 102 provided on the end surface of the end cover component 1 and corresponding thereto, and a first fastening member 6 cooperating with the first locking hole 102. The first locking hole 102 is preferably a screw hole, and the first fastening member 6 is preferably a screw. When the first fastening member 6 passes through the first locking through hole 4013 and is screwed with the first locking hole 102, the control component 4 is locked on the end cover component 1. Through the above technical solution, the control component 4 is locked on the end cover component 1, which can be understood by those skilled in the art.

[0033] Furthermore, a second positioning and mounting structure is provided between the stator component 3 and the end cover component 1. Specifically, in this embodiment, the stator bracket 301 is provided with a second mounting hole 3011. The second positioning and mounting structure includes a second positioning recess 3012 provided on the stator bracket 301 and a second positioning protrusion 1014 provided on the mounting post 101 and corresponding to the second positioning recess 3012. The shape of the second mounting hole 3011 is preferably circular, and the radial cross-section of the second mounting portion 1012 is preferably circular. The radial dimension of the second mounting hole 3011 is the same as the radial dimension of the second mounting portion 1012, so that the two match each other. There are six second positioning recesses 3012 and they are circumferentially arranged on the inner side wall of the second mounting hole 3011. The second positioning protrusions 1014 are three and are circumferentially arranged on the outer peripheral wall of the second mounting portion 1012 and are spaced to correspond to the second positioning recesses 3012. That is, the second positioning protrusions 1014 are provided at the top of the first positioning protrusions 1013. The shape and size of the second positioning recess 3012 match the shape and size of the second positioning protrusion 1014, so that the second positioning protrusion 1014 can extend into the second positioning recess 3012. When the second mounting portion 1012 extends into the second mounting hole 3011, the second positioning recess 3012 and the second positioning protrusion 1014 are engaged with each other, and the stator bracket 301 is positioned and sleeved on the second mounting portion 1012, and the bottom surface of the stator bracket 301 abuts against the top of the first mounting portion 1011, that is, the bottom surface of the stator bracket 301 abuts against the top of the first positioning protrusion 1013. Through the above technical solutions, the stator component 3 is positioned and mounted on the end cover component 1, which can be understood by those skilled in the art.

[0034] Furthermore, in this embodiment, the magnetic ring component 203 and the rotor housing 202 are fixed on the rotor housing 202 through interference fit, and the rotor housing 202 and the rotating shaft 201 are fixed through interference fit, so that the rotor housing 202 and the magnetic ring component 203 are fixed on the rotating shaft 201. Through the above technical solutions, while satisfying the installation of each component in the rotor assembly 2, the assembly parts of the oil pump motor can be reduced, and the manufacturing cost of the oil pump motor can be further reduced, which can be understood by those skilled in the art.

[0035] Furthermore, the oil pump motor further includes a rolling member 8, and a locking member 204 is provided on the rotating shaft 201. Specifically, in this embodiment, the rolling member 8 is preferably a ball bearing, and the number thereof is preferably two groups and are respectively installed on the end face of the end cover member 1 close to the oil pump and on the end face away from the oil pump and located between the rotating shaft 201 and the end cover member 1. The locking member 204 is preferably a shaft retaining ring, and the number thereof is preferably one group and is clamped on the outer peripheral wall of the rotating shaft 201. When the rotor assembly 2 is installed on the end cover member 1, the rolling member 8 on the end face of the end cover member 1 close to the oil pump is locked to the end cover member 1 by the locking member 209, and the rolling member 8 on the end face of the end cover member 1 away from the oil pump is locked to the end cover member 1 by the rotating housing 202. Through the above technical solutions, the rotation resistance of the rotating shaft 201 relative to the shaft cover member is reduced, and the rotation effect of the rotating shaft 201 is smoother, which can be understood by those skilled in the art.

[0036] Furthermore, the oil pump motor further includes a hood 5, which is arranged on the end face of the end cover member 1 away from the oil pump and covers the outside of the rotor assembly 2, the stator component 3 and the control component 4 to protect the rotor assembly 2, the stator component 3 and the control component 4. A third mounting structure is provided between the hood 5 and the end cover member 1. Specifically, in this embodiment, the third mounting structure includes a third mounting through hole 501 provided on the hood 5, a third mounting hole 103 provided on the end cover member 1 and corresponding to the third mounting through hole 501, and a third fastening member 7 that cooperates with the third mounting hole 103. The third mounting hole 103 is preferably a threaded hole, and the third fastening member 7 is preferably a screw. When the third fastening member 7 passes through the third mounting through hole 501 and is screwed to the third mounting hole 103, the hood 5 is installed on the end cover member 1. Through the above technical solutions, the hood 5 can be locked and installed on the end cover member 1, which can be understood by those skilled in the art.

[0037] Furthermore, a wire hole 502 for the wire component to pass through the hood 5 is provided on the hood 5. Specifically, in this embodiment, the wire hole 502 is provided on the side wall of the hood 5 and is formed by cutting the hood 5. Through the above technical solutions, the wire component can extend out of the oil pump motor into the external environment, which can be understood by those skilled in the art.

[0038] The above is the preferred solution of the present invention, which shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil pump motor, comprising an end cover component (1), characterized in that: The oil pump motor further comprises a rotor assembly (2), a stator component (3), and a control assembly (4); the stator component (3) and the control assembly (4) are fixedly arranged on the end cover component (1); the rotor assembly (2) is rotatably arranged on the end cover component (1); one end of the rotor assembly (2) is sleeved on the periphery of the stator component (3); the other end of the rotor assembly (2) passes through the end cover component (1) and is transmission-connected to the oil pump; and the stator component (3) is electrically connected to the control assembly (4).

2. The oil pump motor according to claim 1, characterized in that: The end cover component (1) is provided with a mounting column (101), the mounting column (101) being arranged at the middle of the end surface of the end cover component (1) away from the oil pump, the mounting column (101) comprising a first mounting portion (1011) and a second mounting portion (1012), the first mounting portion (1011) being located below the second mounting portion (1012), the control component (4) comprising a control board (401), the control board (401) being sleeved on the first mounting portion (1011) so that the control component (4) is mounted on the end cover component (1), and the stator component (3) comprising a stator bracket (301), the stator bracket (301) being sleeved on the second mounting portion (1012) so that the stator component (3) is mounted on the end cover component (1).

3. The oil pump motor according to claim 2, characterized in that: A first positioning and mounting structure is provided between the control assembly (4) and the end cover component (1); a first mounting hole (4011) is provided on the control panel (401); the first positioning and mounting structure comprises a first positioning recess (4012) provided on the control panel (401), and a first positioning protrusion (1013) provided on the mounting column (101) and corresponding to the first positioning recess (4012); the first mounting hole (4011) matches the first mounting portion (1011); the first positioning recess (4012) is a plurality of first positioning recesses (4012) and is arranged around the first mounting hole (4011). The first positioning protrusions (1013) are arranged on the inner side wall of the first mounting portion (1011), the first positioning recess (4012) matches the first positioning protrusion (1013), the first mounting portion (1011) extends into the first mounting hole (4011), the first positioning recess (4012) and the first positioning protrusion (1013) are mutually engaged, the control panel (401) is positioned and sleeved on the first mounting portion (1011) and abuts against the end surface of the end cover component (1), so that the control component (4) is positioned and mounted on the end cover component (1).

4. The oil pump motor according to claim 2, characterized in that: A first locking structure is provided between the control component (4) and the end cover component (1), the first locking structure comprising a first locking through hole (4013) provided on the control plate (401), a first locking hole (102) provided on the end surface of the end cover component (1) and corresponding to the first locking hole, and a first fastening component (6) cooperating with the first locking hole (102), the first fastening component (6) passing through the first locking through hole (4013) and being screwed to the first locking hole (102), so that the control component (4) is locked on the end cover component (1).

5. The oil pump motor according to claim 2, characterized in that: A second positioning and mounting structure is provided between the stator component (3) and the end cover component (1); the stator bracket (301) is provided with a second mounting hole (3011); the second positioning and mounting structure comprises a second positioning recess (3012) provided on the stator bracket (301), and a second positioning protrusion (1014) provided on the mounting column (101) and corresponding to the second positioning recess (3012); the second mounting hole (3011) matches the second mounting portion (1012); the second positioning recess (3012) is a plurality of second positioning recesses (3012) provided around the second mounting hole (3011). On the inner wall, the second positioning protrusions (1014) are a plurality of and are arranged on the outer peripheral wall of the second mounting portion (1012); the second positioning recess (3012) matches the second positioning protrusion (1014); the second mounting portion (1012) extends into the second mounting hole (3011); the second positioning recess (3012) and the second positioning protrusion (1014) are mutually engaged; the stator bracket (301) is positioned and sleeved on the second mounting portion (1012) and abuts against the top end of the first mounting portion (1011), so that the stator component (3) is positioned and mounted on the end cover component (1).

6. The oil pump motor according to claim 1, characterized in that: The rotor assembly (2) comprises a rotating shaft (201), a rotor shell (202), and a magnetic ring component (203); the rotating shaft (201) is rotatably disposed on the end cover component (1); the magnetic ring component (203) is fixedly mounted on the rotor shell (202) and sleeved on the periphery of the stator component (3); the rotor shell (202) is fixedly mounted on one end of the rotating shaft (201); and the other end of the rotating shaft (201) passes through the end cover component (1) and is drivingly connected to the oil pump.

7. The oil pump motor according to claim 6, characterized in that: There is an interference fit between the magnetic ring component (203) and the rotor shell (202), and there is an interference fit between the rotor shell (202) and the rotating shaft (201).

8. The oil pump motor according to claim 6, characterized in that: The oil pump motor further comprises a rolling component (8), the rolling component (8) being arranged on the end surface of the end cover component (1) and being located between the rotating shaft (201) and the end cover component (1), the rotating shaft (201) being provided with a locking component (204) for locking the rolling component (8) on the end cover component (1), the locking component (204) being clamped on the outer peripheral wall of the rotating shaft (201).

9. The oil pump motor according to claim 1, characterized in that: The oil pump motor further comprises a hood (5), the hood (5) being arranged on an end surface of the end cover component (1) away from the oil pump, a third mounting structure being arranged between the hood (5) and the end cover component (1), the third mounting structure comprising a third mounting through hole (501) arranged on the hood (5), a third mounting hole (103) arranged on the end cover component (1) and corresponding to the third mounting through hole (501), and a third fastening component (7) cooperating with the third mounting hole (103), the third fastening component (7) passing through the third mounting through hole (501) and being screwed to the third mounting hole (103), so that the hood (5) is mounted on the end cover component (1).

10. The oil pump motor according to claim 9, characterized in that: The control component (4) comprises a wire component for electrically connecting the control component (4) to an external power source, and the hood (5) is provided with a wire hole (502) for the wire component to pass through the hood (5), and the wire hole (502) is arranged on a side wall of the hood (5).

Images