CN217206994U

CN217206994U - Automobile electronic water pump adopting magnetic bearing

Info

Publication number: CN217206994U
Application number: CN202221131260.9U
Authority: CN
Inventors: 赵鸿岳; 檀荣科
Original assignee: Incare System Shandong Co ltd
Current assignee: Incare System Shandong Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2022-08-16
Anticipated expiration: 2032-05-12

Abstract

The utility model discloses an automobile electronic water pump adopting magnetic bearings, which comprises a machine body, a volute and a driving shell which are respectively arranged on the upper part and the lower part of the machine body, wherein a water inlet and a water outlet are arranged above the volute, a shielding sleeve is arranged inside the machine body, the two ends of the shielding sleeve are respectively connected with the machine body and the driving shell, a rotor is arranged inside the shielding sleeve, an impeller is arranged above the rotor, the upper end and the lower end of the rotor are both provided with the magnetic bearings, a stator is arranged between the outer side of the shielding sleeve and the inner side of the machine body, a controller is arranged in the driving shell, a connector is arranged on the driving shell, one end of the connector is connected with an external connector, the other end of the connector is connected with the controller, a rear end cover is also arranged below the driving shell, the automobile electronic water pump adopts the magnetic bearings to eliminate abrasion, and the power consumption of the automobile electronic water pump is 10 percent of that of a common bearing and is free from lubrication and sealing devices, the problems of inevitable mechanical abrasion, bearing damage, rotor eccentricity and the like in the working process of the water pump in the prior art are solved.

Description

Automobile electronic water pump adopting magnetic bearing

Technical Field

The utility model belongs to the technical field of electronic water pump, a car electronic water pump is related to, specifically is an adopt magnetic bearing's car electronic water pump.

Background

The automobile water pump is a device used for conveying engine coolant on an automobile, and can be divided into a mechanical water pump and an electric water pump according to a driving mode, and the electric water pump can be divided into a brushed electric water pump and a brushless electric water pump according to whether a carbon brush exists or not. The mechanical water pump is driven by the engine, the rotating speed of the water pump and the rotating speed of the engine form a fixed ratio, the heat dissipation requirement under the low-speed and high-load working condition cannot be met, and the cooling requirements of parts such as a main drive motor of a new energy automobile and the water supply requirement on a motor home cannot be met when the engine stops working; the brushed electric water pump has poor electromagnetic interference resistance, the carbon brush is easy to generate electric sparks to interfere other electronic devices, and meanwhile, the brushed electric water pump has short service life due to the abrasion influence of the reversing carbon brush. Is not suitable for new energy automobiles. Therefore, at present, the direct-current brushless electronic water pump is increasingly applied to high-end automobiles, new energy automobiles and motor homes.

The bearing is basically placed at one end or two ends of a rotor in the prior automobile electronic water pump technology, such as a self-lubricating bearing and wear-resistant bearing automobile electronic water pump provided by file number CN 112524047A, though the structure is properly improved, when the water pump starts working, a motor rotor just starts to transmit torque with the bearing interaction, impurities such as fine sand in cooling liquid cannot be avoided entering, the cooling liquid is easily clamped between the rotor and the bearing, the abrasion is aggravated, the main shaft is eccentric, even the bearing is damaged, the water pump is damaged and loses efficacy, when the rotating speed of the water pump rises, the bearing loss is aggravated, external impurities, the influence of vibration on the water pump is more serious, the rotating speed is higher, the service life of the water pump is lower, and great restriction is caused for the development of the high-rotating-speed water pump.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an adopt magnetic bearing's automotive electronics water pump to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an adopt magnetic bearing's automotive electronics water pump, includes the organism, sets up spiral case and the drive shell of below on the organism respectively, the spiral case top is equipped with water inlet and delivery port, organism internally mounted has the housing, organism and drive shell are connected respectively to the both ends of housing, the rotor is installed to the housing internally, the rotor top is equipped with the impeller, just magnetic bearing is all installed to the last lower extreme of rotor, install the stator between the housing outside and the organism inboard, be equipped with the controller in the drive shell, be equipped with the connector on the drive shell, the one end and the external connection ware of connector are connected, and the other end is connected the controller, the below of drive shell still is equipped with the rear end cap.

The utility model discloses a further improvement lies in: the joint of the volute and the machine body, and the joint of the shielding sleeve and the machine body and the driving shell are both provided with sealing rings.

The utility model discloses a further improvement lies in: the stator comprises a plurality of silicon steel sheets and a winding wound on the silicon steel sheets, and the winding is connected with the controller.

The utility model discloses a further improvement lies in: and the volute, the shielding sleeve, the machine body, the driving shell and the connector are all provided with flange surfaces for mounting and connecting.

The utility model discloses a further improvement lies in: and a plurality of radiating fins are arranged on the controller.

The utility model discloses a further improvement lies in: the rear end cover is connected with the driving shell through a screw, and a sealing ring is matched between the rear end cover and the driving shell to form static seal.

The utility model discloses a further improvement lies in: the connector and the driving shell are fixedly connected through bolts and matched with a sealing ring to form static seal.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a magnetic bearing, the wearing and tearing are eliminated, and its consumption is 10% of ordinary bearing, it is lubricated nothing, sealing device, there is not environmental pollution, can be at high temperature, cryrogenic and vacuum environment under the operation, inevitable mechanical wear in the work of current technical state water pump has been solved, the bearing damages, rotor off-centre scheduling problem, avoid electric motor rotor's friction loss, fundamentally has solved high rotational speed automotive electronics water pump's bearing loss problem, promote water pump work efficiency, increase life, and effectively solve the problem that water pump reliability is low when sneaking into impurity such as fine sand in the coolant liquid that current automotive electronics water pump adopts ordinary graphite bearing's structure to lead to, promote life and reliability.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic view of the stator structure of the present invention;

fig. 3 is a schematic diagram of the controller of the present invention.

In the figure: 1. volute, 101-water inlet, 102-water outlet, 2-impeller, 3-machine body, 301-boss, 4-magnetic bearing, 5-shielding sleeve, 6-stator, 601-silicon steel sheet, 602-winding, 7-rotor, 8-driving shell, 9-controller, 901-radiating fin, 10-rear end cover and 11-connector.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present embodiment provides an automotive electronic water pump using a magnetic bearing, including a volute 1, an impeller 2, a body 3, a magnetic bearing 4, a shielding sleeve 5, a stator 6, a rotor 7, a driving shell 8, a controller 9, a rear end cover 10, and a connector 11, where the volute 1, the shielding sleeve 5, the body 3, the driving shell 8, and the connector 11 all have flange surfaces for mounting and connecting. Specifically, spiral case 1 install in on the organism 3, be equipped with water inlet 101 and delivery port 102 on the spiral case 1, form main water route, drive shell 8 install in the organism below, housing 5 installs between the inside top flange face of organism 3 and the drive shell 8 flange face, spiral case 1 and organism 3's junction housing 5 with organism 3 and with the junction of drive shell 8 all is provided with the sealing washer, forms static seal structure, has prevented that the water in the inner chamber from leaking, keeps apart fluid part and stator structure completely, has replaced traditional mechanical dynamic seal, avoids traditional dynamic seal to produce generate heat and wearing and tearing, has eliminated the fluid that mechanical dynamic seal wearing and tearing produced and has revealed, has kept away to realize the zero transmission of revealing of power. The middle cavity that is used for holding rotor 7 that has of housing 5, for the rotor chamber, magnetic bearing 4 is all connected to the last lower extreme of rotor 7, magnetic bearing 4 places the inside upper and lower extreme of cavity, and the upper end is installed on organism 3, and the lower extreme is installed on drive shell 8, and the friction of rotor motion in-process has effectively been exempted from in magnetic bearing 4's adoption, has promoted motor efficiency, and to a great extent has avoided answering impurity such as tiny gravel and sand sneaking into the harm that causes the water pump, has increased water pump efficiency and reliability. For the stator chamber between 5 outsides of housing and the 3 inboards of organism, placed stator 6, organism 3 be equipped with boss 301 on being connected the lateral wall with stator 6, stator 6 inlays and establishes in organism 3, and stator 6 has restricted the rotation and the axial displacement of stator through the inboard radial and axial boss 301 interact of organism 3, stator 6 includes silicon steel sheet 601 and winding 602 of winding on silicon steel sheet 601, and winding 602 is controlled by controller 9 and provides variable magnetic field, has kept apart rotor 7 and stator 6 through housing 5 to make the water of rotor intracavity can not get into the stator chamber and damage stator and controller. Controller 9 is last to paste and is equipped with a plurality of radiating fin, can effectively dispel the heat that the during operation of controller 9 released, has enlarged the heat radiating area of controller, has prolonged life. The rear end cover 10 is connected with the driving shell 8 through a screw and matched with a sealing ring to form static seal; the connector 11 passes through bolted connection with drive shell 8, and the cooperation sealing washer forms static seal, has effectively prevented that water from the external world to get into drive shell 8 and has caused the harm to controller 9.

This embodiment provides an adopt magnetic bearing's automotive electronics water pump, and controller 9 and stator 6 pass through the wire and connect, and the wire corresponds through three pore pair above stator and the controller and connects, by controller 9 discernment input signal, sends control signal after through internal program operation processing, and drive stator 6 produces the magnetic field that the law changes to make stator 6 and rotor 7 produce the interact, drive rotor 7 drives the impeller rotation. When the cooling device works, the connector 11 is connected with an external connector, the controller 9 recognizes an input signal and sends a control signal to drive the stator 6 to generate a magnetic field, so that the rotor 7 is caused to rotate, the impeller 2 rotates along with the rotor, water in the center of the impeller 2 is thrown out to the periphery and is pumped out from the water outlet of the volute 1 at a certain pressure, and meanwhile, due to the fact that the pressure in the center of the impeller 2 is reduced, cooling liquid is pumped in from the water inlet of the volute 1, and therefore the circulation flow of the cooling liquid on a vehicle is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an adopt magnetic bearing's automotive electronics water pump, includes the organism, sets up spiral case and the drive shell of below on the organism respectively, its characterized in that: the utility model discloses a motor, including spiral case, engine body, stator, magnetic bearing, stator, drive shell, stator, spiral case, magnetic bearing, stator, controller, casing, stator, casing, magnetic bearing, casing.

2. The automobile electronic water pump adopting the magnetic bearing as claimed in claim 1, wherein: the joint of the volute and the machine body, and the joint of the shielding sleeve and the machine body and the driving shell are both provided with sealing rings.

3. The automobile electronic water pump adopting the magnetic bearing as claimed in claim 1, wherein: the stator comprises a plurality of silicon steel sheets and a winding wound on the silicon steel sheets, and the winding is connected with the controller.

4. The electronic water pump for the automobile adopting the magnetic bearing as claimed in claim 1, wherein: and the volute, the shielding sleeve, the machine body, the driving shell and the connector are all provided with flange surfaces for mounting and connecting.

5. The automobile electronic water pump adopting the magnetic bearing as claimed in claim 1, wherein: and a plurality of radiating fins are arranged on the controller.

6. The automobile electronic water pump adopting the magnetic bearing as claimed in claim 1, wherein: the rear end cover is connected with the driving shell through a screw, and a sealing ring is matched between the rear end cover and the driving shell to form static seal.

7. The automobile electronic water pump adopting the magnetic bearing as claimed in claim 1, wherein: the connector and the driving shell are fixedly connected through bolts and matched with a sealing ring to form static seal.