An electronic oil pump structure of non-contact drive

Abstract

The utility model relates to electronic oil pump technical field. A kind of non-contact drive's electronic oil pump structure, including the oil pump main body being composed of oil pump casing and motor structure and controller module, the front end of oil pump main body is equipped with independent pump head structure, and oil pump casing separates pump head structure and oil pump main body into two spaces, motor structure is independent drive shaft, and pump head structure is single rotating shaft, and magnetic attraction drive structure for realizing drive is equipped between pump head structure and motor structure. The utility model provides a kind of non-contact drive's electronic oil pump structure with stable control, good sealing, little noise, guarantees the stability of entire product under special circumstances by non-contact transmission, can satisfy higher use demand;Solve the technical problem that the current electronic oil pump structure is relatively single in prior art, prone to jamming problem, motor is prone to overheating failure and other problems, cannot satisfy higher use demand.

Description

Technical Field

[0001] This utility model relates to the field of electronic oil pump technology, and in particular to a non-contact driven electronic oil pump structure. Background Technology

[0002] With economic development and the rapid growth of the automotive industry, users now have higher requirements for vehicle intelligence and comfort, in addition to demanding power and stability.

[0003] To ensure the cooling and lubrication of various engine components, an electronic oil pump is needed to power the oil circulation. The electronic oil pump is powered by an internal motor, which drives the impeller (inner and outer rotors) to circulate the oil, thereby cooling and lubricating the relevant components. As oil pumps are developing towards higher integration, higher precision, and higher stability, ensuring the normal and stable operation of the oil pump under different working conditions is an urgent problem to be solved. The current electronic oil pump has a relatively simple structure and is prone to jamming and motor overheating failure, so it is necessary to improve it. Utility Model Content

[0004] This utility model provides a non-contact driven electronic oil pump structure that features stable control, good sealing, low noise, and ensures the stability of the entire product under special conditions through non-contact transmission, thus meeting higher usage requirements. It solves the technical problems of existing electronic oil pumps, such as their relatively simple structure, susceptibility to jamming, and motor overheating failure, which prevent them from meeting higher usage requirements.

[0005] The above-mentioned technical problem of this utility model is solved by the following technical solution: a non-contact driven electronic oil pump structure, comprising an oil pump body composed of an oil pump housing, a motor structure, and a controller module. The front end of the oil pump body has an independent pump head structure. The oil pump housing separates the pump head structure and the oil pump body into two spaces. The motor structure is an independent drive shaft, and the pump head structure is a separate rotating shaft. A magnetic drive structure for driving is provided between the pump head structure and the motor structure. This utility model shortens the original internal drive shaft of the oil pump, placing it only in the motor cavity. It seals the original through-hole of the motor shaft, eliminating the need for additional bearings and sealing rings, thus reducing material and processing costs to a certain extent, and increasing the sealing of the motor cavity. When the motor is working, the magnetic drive structure drives the pump head structure to rotate, realizing the function of driving oil circulation.

[0006] Preferably, the pump head structure includes a pump head body, a rotating shaft, an inner rotor, and an outer rotor, with a detachable filter screen at the front end of the pump head body. The rotating shaft in the pump head structure is an independent shaft, and the filter screen at the front end of the pump head body serves a filtering function.

[0007] Preferably, the motor structure includes a central drive shaft, an outer motor rotor, and a stator. The front end of the oil pump housing has an oil injection hole for oil cooling circulation. The motor housing seals the original perforated motor shaft and provides an oil injection hole for oil to enter the motor cavity, where the oil circulates for cooling.

[0008] Preferably, the magnetic drive structure includes strong magnets fixed at the rear end of the inner rotor in the pump head structure and at the front end of the motor rotor in the motor structure, with the inner rotor of the pump head and the motor rotor attracted to each other through the oil pump housing. When the motor is working, due to the attraction between the two strong magnets, the motor rotor drives the inner rotor of the pump head to rotate, thereby achieving the function of driving oil circulation.

[0009] Preferably, the strong magnets are paired, curved magnets. The number and shape of the strong magnets can be adjusted according to requirements; this invention uses curved strong magnets as an example for illustration.

[0010] Preferably, a magnetic shielding sleeve is provided between the strong magnet and the motor rotor. The magnetic shielding sleeve is fitted onto the front end of the motor rotor, and the strong magnet is fixed on the magnetic shielding sleeve. The function of the magnetic shielding sleeve is to prevent the strong magnet and the motor rotor magnet from interfering with each other, ensuring the stable rotation of the oil pump motor. The magnetic shielding sleeve can be made of magnetic isolation material or magnetic shielding material.

[0011] Preferably, the controller module is equipped with a sensor for detecting changes in magnetic force. In this invention, the inner rotor is not rigidly connected to the motor. When foreign objects obstruct the inner and outer rotors, the motor will not be jammed. When the sensor on the controller detects a change in magnetic resistance, it will control the motor to gradually reduce its speed, thereby ensuring the stability of the entire product under special circumstances.

[0012] Therefore, the non-contact driven electronic oil pump structure of this utility model has the following advantages: stable control, good sealing performance, low noise, and the stability of the entire product under special circumstances is guaranteed by non-contact transmission, which can meet higher usage requirements. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a non-contact driven electronic oil pump structure according to this utility model.

[0014] Figure 2 yes Figure 1 A schematic diagram of the left-side cross-sectional structure.

[0015] Figure 3 yes Figure 1 A schematic diagram of the front sectional view of the structure.

[0016] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0017] In the figure, the components are: 1. Oil pump housing; 2. Pump head body; 3. Rotary shaft; 4. Inner rotor; 5. Filter screen; 6. Drive shaft; 7. Motor rotor; 8. Strong magnet; 9. Magnetic shielding sleeve; and 10. Controller module. Detailed Implementation

[0018] The technical solution of the utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0019] Example: like Figure 1 and 2 As shown in Figures 3 and 4, a non-contact driven electronic oil pump structure includes an oil pump body 1, which consists of an oil pump housing, a motor structure, and a controller module 10. An independent pump head structure is installed at the front end of the oil pump body 1, and the oil pump housing separates the pump head structure from the oil pump body 1 into two spaces.

[0020] The pump head structure includes a pump head body 2, a central rotating shaft 3, an inner rotor 4 and an outer rotor, with the rotating shaft 3 being an independent structure installed in the center.

[0021] A removable filter screen 5 is installed at the front end of the pump head body 2.

[0022] The motor structure includes a central drive shaft 6, an outer motor rotor 7, and a stator. The drive shaft 6 is an independent shaft mounted at the center of the motor rotor 7. An oil injection hole for oil cooling circulation is provided at the front end of the oil pump housing.

[0023] A magnetic drive structure is installed between the pump head structure and the motor structure. The magnetic drive structure includes four strong magnets 8 that are fixedly installed at the front end of the motor rotor 7 and the rear end of the inner rotor 4.

[0024] Strong magnet 8 consists of two pairs of corresponding arc-shaped magnets.

[0025] A magnetic shielding sleeve 9 is installed between the motor rotor 7 and the strong magnet 8. The magnetic shielding sleeve 9 is fitted on the front end of the motor rotor 7, and the strong magnet 8 is fixed on the magnetic shielding sleeve 9.

[0026] The controller module 10 is installed at the rear end of the oil pump body 1, and a sensor for detecting changes in magnetic force is installed on the controller module 10.

[0027] In this invention, the motor structure and pump head structure of the electronic oil pump are separated by the oil pump housing to ensure overall sealing, while the oil enters the motor wall through the oil injection hole for circulation and cooling.

[0028] This invention shortens the original internal drive shaft 6 of the oil pump, placing it only in the motor cavity. It seals the perforation of the original motor shaft, eliminating the need for additional bearings and sealing rings. This reduces material and processing costs to some extent and improves the sealing of the motor cavity.

[0029] When the motor is working, the two strong magnets 8 attract each other, and the motor rotor 7 drives the inner rotor 4 of the pump head to rotate, thereby realizing the function of driving the oil circulation.

[0030] In this invention, the inner rotor 4 is not rigidly connected to the motor. When foreign objects are stuck in the inner and outer rotors, the motor will not be jammed. When the sensor on the controller detects a change in magnetic resistance, it will control the motor to slow down slowly, thereby ensuring the stability of the entire product under special circumstances.

[0031] Furthermore, since a strong magnet 8 is installed on the inner rotor 4, there is a certain gap between the inner rotor 4 and the pump head body 2. Some small foreign objects will also be attracted by the strong magnet 8, and the situation of the inner rotor 4 being stuck will be reduced.

[0032] The oil pump of this invention can effectively reduce noise and vibration accumulation and improve NVH levels to a certain extent through non-contact rotation.

[0033] The specific embodiments described herein are merely illustrative examples of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A non-contact driven electronic oil pump structure, characterized in that: The pump body comprises an oil pump housing, a motor structure, and a controller module. The front end of the oil pump body is provided with an independent pump head structure. The oil pump housing separates the pump head structure and the oil pump body into two spaces. The motor structure is an independent drive shaft, and the pump head structure is a separate rotating shaft. A magnetic drive structure for driving is provided between the pump head structure and the motor structure.

2. The non-contact driven electronic oil pump structure according to claim 1, characterized in that: The pump head structure includes a pump head body, a rotating shaft, an inner rotor, and an outer rotor. A detachable filter screen is provided at the front end of the pump head body.

3. The non-contact driven electronic oil pump structure according to claim 1, characterized in that: The motor structure includes a central drive shaft, an outer motor rotor, and a stator. The front end of the oil pump housing has an oil injection hole for oil cooling circulation.

4. The non-contact driven electronic oil pump structure according to claim 1, characterized in that: The magnetic drive structure includes strong magnets fixed in the pump head structure at the rear end of the inner rotor and in the motor structure at the front end of the motor rotor, which correspond to each other. The inner rotor of the pump head and the motor rotor of the motor are attracted to each other through the oil pump housing.

5. The non-contact driven electronic oil pump structure according to claim 4, characterized in that: The strong magnets mentioned are two corresponding arc-shaped magnets.

6. The non-contact driven electronic oil pump structure according to claim 4, characterized in that: A magnetic shielding sleeve is provided between the strong magnet and the motor rotor. The magnetic shielding sleeve is fitted on the front end of the motor rotor, and the strong magnet is fixed on the magnetic shielding sleeve.

7. The non-contact driven electronic oil pump structure according to claim 1, characterized in that: The controller module is equipped with a sensor for detecting changes in magnetic force.

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