Electronic oil pump with sealing structure

Abstract

The utility model discloses an electronic oil pump with a sealing structure, which comprises a shell, a motor stator and a motor rotor are arranged in the shell, an inner sealing ring is arranged on the inner wall of one side of the shell, an outer sealing ring is arranged on the outer side of the shell, one side of the shell is fixedly connected with an isolation cover plate, and the isolation cover plate is fixedly connected with a sealing ring. One end of the isolation cover plate is in contact with the inner sealing ring and the outer sealing ring, a circuit board is fixedly connected to one side of the isolation cover plate, a plurality of PINs are fixedly connected to one side of the circuit board, a plurality of penetrating holes are formed in one side of the isolation cover plate, sealing sleeves are arranged on the inner walls of the penetrating holes, and the sealing sleeves are fluororubber rings; a plurality of protruding rings are integrally formed on the outer surface of the sealing sleeve and connected with the penetrating holes in a clamped mode. According to the electronic oil pump, sealing isolation between the circuit board and the motor is effectively achieved, the sealing effect is enhanced through clamping connection of the protruding ring of the sealing sleeve and the penetrating hole, and the reliability and durability of the electronic oil pump are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic oil pump technical field especially, it relates to an electronic oil pump with sealing structure. BACKGROUND

[0002] With the rapid development of vehicle industry, vehicle performance is developing towards more safe, more reliable, more stable, full-automatic intelligent and environmental protection energy saving, and electronic oil pump is used in vehicle lubricating system or cooling system in large quantities and can satisfy the market requirement well.

[0003] At present, the existing electronic oil pump needs to be sealed and isolated between the circuit board and the motor, and PIN needle as important component of transmission model must be contacted with the motor, and PIN needle and the shell are two kinds of materials, but after long time operation, the connecting surface of both will appear gap due to aging, so that oil can enter the circuit board through the gap, thereby affecting the service life of the electronic oil pump. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of electronic oil pumps with sealing structure, to solve the problem that the existing circuit board and motor need to be sealed and isolated, and PIN needle as important component of transmission model must be contacted with the motor, and PIN needle and the shell are two kinds of materials, but after long time operation, the connecting surface of both will appear gap due to aging, so that oil can enter the circuit board through the gap, thereby affecting the service life of the electronic oil pump.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] An electronic oil pump with sealing structure, comprising a shell, the shell is internally provided with a motor stator and a motor rotor, an inner sealing ring is arranged on the inner wall of one side of the shell, an outer sealing ring is arranged on the outer side of the shell, an isolation cover plate is fixedly connected to one side of the shell, and one end of the isolation cover plate is in contact with the inner sealing ring and the outer sealing ring respectively, a circuit board is fixedly connected to one side of the isolation cover plate, a plurality of PIN needles are fixedly connected to one side of the circuit board, a plurality of through holes are formed in one side of the isolation cover plate, and a sealing sleeve is arranged on the inner wall of the through hole, the sealing sleeve is a fluorine rubber ring, a plurality of convex rings are integrally formed on the outer surface of the sealing sleeve, the convex rings are clamped with the through holes, and the PIN needles are in contact with the wiring terminals of the motor stator through the sealing sleeve.

[0007] Further, the circuit board end cover is fixedly connected to one side of the isolation cover plate.

[0008] Further, the maintenance cover is fixedly connected to one side of the circuit board end cover.

[0009] Further, the pump head end cover is arranged on the other side of the shell.

[0010] Further, the outer surface of the pump head end cover is provided with an oil inlet and an oil outlet.

[0011] Further, the outer surface of the oil inlet and the oil outlet is provided with a sealing gasket.

[0012] Further, one side of the circuit board end cover is provided with a connector, and the connector is electrically connected with the circuit board.

[0013] The beneficial effects of the utility model are:

[0014] 1. The electronic oil pump makes PIN pin contact with motor stator terminal through sealing sleeve on isolation cover plate, wherein the sealing sleeve is fluorine rubber ring, when the motor runs, motor rotor and motor stator produce rotary motion, and due to the existence of sealing sleeve between circuit board and motor, oil cannot penetrate into circuit board through the connecting part of PIN pin and isolation cover plate, thereby guaranteeing the stable operation and long service life of electronic oil pump, this design not only effectively realizes the sealing isolation between circuit board and motor, but also enhances the sealing effect through the clamping of convex ring of sealing sleeve and perforation, thereby guaranteeing the reliability and durability of electronic oil pump.

[0015] 2. The electronic oil pump realizes good sealing isolation through the inner sealing ring arranged on the inner wall of one side of the shell and the outer sealing ring arranged on the outer side of the shell, the shell is fixed with isolation cover plate through bolt, the end of isolation cover plate is in contact with inner sealing ring and outer sealing ring respectively, and the sealing effect is further enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the electronic oil pump with sealing structure provided by the utility model;

[0017] Figure 2 It is a rear view structure schematic view of the electronic oil pump with sealing structure provided by the utility model;

[0018] Figure 3 It is an internal structure schematic view of the electronic oil pump with sealing structure provided by the utility model;

[0019] Figure 4 It is an explosion structure schematic view of the electronic oil pump with sealing structure provided by the utility model;

[0020] Figure 5 It is a part enlarged structure schematic view of the electronic oil pump with sealing structure provided by the utility model.

[0021] In the figure: 1, the shell; 2, motor stator; 3, motor rotor; 4, inner sealing ring; 5, outer sealing ring; 6, isolation cover plate; 7, circuit board; 8, circuit board end cover; 9, maintenance cover; 10, perforation; 11, PIN needle; 12, sealing sleeve; 13, convex ring; 14, pump head end cover; 15, oil inlet; 16, oil outlet; 17, sealing pad; 18, connector. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0023] Referring to Figures 1-5 An electronic oil pump with a sealing structure comprises a shell 1, the shell 1 is internally provided with a motor stator 2 and a motor rotor 3, the inner wall of one side of the shell 1 is provided with an inner sealing ring 4, the outer side of the shell 1 is provided with an outer sealing ring 5, the isolation cover plate 6 is fixed on one side of the shell 1 through bolts, and one end of the isolation cover plate 6 is in contact with the inner sealing ring 4 and the outer sealing ring 5 respectively, the end of the isolation cover plate 6 is in contact with the inner sealing ring 4 and the outer sealing ring 5 respectively, which further enhances the sealing effect, the circuit board 7 is fixed on one side of the isolation cover plate 6 through bolts, a plurality of PIN needles 11 are welded on one side of the circuit board 7, a plurality of perforations 10 are formed on one side of the isolation cover plate 6, and the inner wall of the perforation 10 is provided with a sealing sleeve 12, the sealing sleeve 12 is a fluorine rubber ring, the fluorine rubber can withstand high temperature and high pressure, and shows excellent stability to various chemicals, a plurality of convex rings 13 are integrally formed on the outer surface of the sealing sleeve 12, the convex ring 13 is clamped with the perforation 10, the PIN needle 11 is in contact with the terminal of the motor stator 2 through the clamping of the convex ring 13 of the sealing sleeve 12 and the perforation 10, which can prevent falling and enhance the sealing effect.

[0024] Among them, the circuit board end cover 8 is fixed on one side of the isolation cover plate 6 through bolts, the maintenance cover 9 for maintaining the circuit board 7 is fixed on one side of the circuit board end cover 8 through bolts, the pump head end cover 14 is arranged on the other side of the shell 1, the oil inlet 15 and the oil outlet 16 are formed on the outer surface of the pump head end cover 14 respectively, the outer surface of the oil inlet 15 and the oil outlet 16 is provided with a sealing pad 17, the connector 18 is arranged on one side of the circuit board end cover 8, and the connector 18 is electrically connected with the circuit board 7.

[0025] The working principle of the embodiment is as follows: in use, in order to prevent the lubricating liquid in the shell 1 from flowing into the circuit board 7, first, the shell 1 is fixedly connected with the isolation cover plate 6, then the sealing of the isolation cover plate 6 is realized through the inner sealing ring 4 and the outer sealing ring 5 to prevent oil seepage, secondly, the perforation 10 through which the PIN needle 11 penetrates is arranged on the isolation cover plate 6, and the sealing sleeve 12 with the convex ring 13 is arranged in the perforation 10, the convex ring 13 is clamped with the inner wall of the perforation 10, which can prevent the convex ring 13 from falling off, and the sealing sleeve 12 is a fluorine rubber ring, the fluorine rubber can withstand high temperature and high pressure, and shows excellent stability, corrosion resistance and ability to withstand extreme working environment to a variety of chemicals, the PIN needle 11 penetrates through the sealing sleeve 12, which can effectively prevent the oil liquid from entering the circuit board 7 through the gap between the PIN needle 11 and the isolation cover plate 6, and improve the overall sealing performance of the electronic oil pump.

[0026] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An electronic oil pump with a sealing structure, comprising a housing (1), a motor stator (2) and a motor rotor (3) are arranged inside the housing (1), characterized in that, The side inner wall of the shell (1) is provided with an inner sealing ring (4), the outer side of the shell (1) is provided with an outer sealing ring (5), one side of the shell (1) is fixedly connected with an isolation cover plate (6), one end of the isolation cover plate (6) is in contact with the inner sealing ring (4) and the outer sealing ring (5) respectively, one side of the isolation cover plate (6) is fixedly connected with a circuit board (7), one side of the circuit board (7) is fixedly connected with a plurality of PIN pins (11), one side of the isolation cover plate (6) is provided with a plurality of perforations (10), and the inner wall of the perforation (10) is provided with a sealing sleeve (12), the sealing sleeve (12) is a fluorine rubber ring, a plurality of convex rings (13) are integrally formed on the outer surface of the sealing sleeve (12), the convex ring (13) is clamped with the perforation (10), and the PIN pin (11) is in contact with the wiring terminal of the motor stator (2) through the sealing sleeve (12).

2. The electronic oil pump with a sealing structure according to claim 1, characterized by, One side of the isolation cover plate (6) is fixedly connected with a circuit board end cover (8).

3. An electronic oil pump with a seal structure according to claim 2, characterized by One side of the circuit board end cover (8) is fixedly connected with an inspection cover (9).

4. The electronic oil pump with a sealing structure according to claim 1, characterized in that, The other side of the shell (1) is provided with a pump head end cover (14).

5. An electronic oil pump with a seal structure according to claim 4, characterized by The outer surface of the pump head end cover (14) is respectively provided with an oil inlet (15) and an oil outlet (16).

6. An electronic oil pump with a seal structure according to claim 5, wherein The outer surface of the oil inlet (15) and the oil outlet (16) is provided with a sealing gasket (17).

7. The electronic oil pump with a sealing structure according to claim 3, characterized in that, One side of the circuit board end cover (8) is provided with a connector (18), and the connector (18) is electrically connected with the circuit board (7).

Images