CN217883060U

CN217883060U - Sealing structure of end cover and shell of electric vehicle motor

Info

Publication number: CN217883060U
Application number: CN202222001131.4U
Authority: CN
Inventors: 张启峰; 杨晓梅; 黄陆军
Original assignee: Jiangsu Mengtian Electromechanical Technology Co ltd
Current assignee: Jiangsu Mengtian Electromechanical Technology Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-11-22
Anticipated expiration: 2032-07-29

Abstract

The utility model discloses a sealing structure of an electric vehicle motor end cover and a shell, relating to the technical field of electric vehicle motors; the utility model comprises a motor sealing shell, wherein an extension groove is arranged on the side wall of the motor sealing shell, a front end cover is arranged on one side inside the motor sealing shell, a mounting groove is arranged on the end surface of the front end cover close to the motor sealing shell, and a second sealing rubber ring is sleeved inside the mounting groove; one end with second seal rubber ring enters into the inside of extending groove, later install the rear end cap, insert the spacing inslot of motor seal housing inner wall with the top strip on the rear end cap, the top strip withstands the front end housing, make the inside of motor seal housing is hugged closely to second seal rubber ring, the back is installed to the rear end cap simultaneously, the inside first seal rubber ring of rear end cap can be supported to motor seal housing's the other end, first seal rubber ring all plays fine sealed effect with second seal rubber ring, prevent that dust and rainwater from entering into motor seal housing's inside.

Description

Sealing structure of end cover and shell of electric vehicle motor

Technical Field

The utility model relates to an electric motor car motor technical field specifically is a seal structure of electric motor car motor end cover and casing.

Background

The electric vehicle motor refers to a driving motor for an electric vehicle. The form is different according to the use environment and the use frequency. The different types of motors are also characterized differently. The motor of the electric vehicle is generally a permanent magnet direct current motor. The electric vehicle motors are classified according to the electrifying form of the motor, and can be divided into two types, namely brush motors and brushless motors; the motor assembly is divided into two categories, namely 'toothed' (the motor has high rotating speed and needs to be decelerated by a gear) and 'toothless' (the motor torque output does not undergo any deceleration), according to the mechanical structure of the motor assembly.

The prior art has the following problems:

the existing electric vehicle motor end cover and the shell are mostly fixedly connected through a plurality of bolts, the sealing effect is poor, rainwater and dust enter the shell, the motor is easily damaged, meanwhile, the installation of the end cover and the shell is very troublesome, and the motor is inconvenient to operate.

SUMMERY OF THE UTILITY MODEL

The sealing structure aims to solve the problems that the sealing effect of the sealing structure of the motor end cover and the shell of the existing electric vehicle is not good, and the installation is very troublesome; an object of the utility model is to provide a seal structure of electric motor car motor end cover and casing.

In order to solve the technical problem, the utility model adopts the following technical scheme: a sealing structure of an electric vehicle motor end cover and a casing comprises a motor sealing casing, wherein an extension groove is formed in the side wall of the motor sealing casing, a front end cover is arranged on one side inside the motor sealing casing, a mounting groove is formed in the end face, close to the motor sealing casing, of the front end cover, a second sealing rubber ring is sleeved inside the mounting groove, a rear end cover is movably sleeved at one end, far away from the front end cover, of the motor sealing casing, a plurality of limiting grooves are formed in the inner wall of the motor sealing casing, a plurality of top strips which are distributed annularly are fixedly connected inside the rear end cover and located inside the limiting grooves, and a first sealing rubber ring is sleeved on the outer surfaces of the top strips;

the front end cover with the second sealing rubber ring is placed inside the motor sealing shell, one end of the front end cover with the second sealing rubber ring enters the inside of the extending groove, the rear end cover is installed later, a top strip on the rear end cover is inserted into a limiting groove in the inner wall of the motor sealing shell, the top strip abuts against the front end cover, the second sealing rubber ring is made to cling to the inside of the motor sealing shell, meanwhile, the rear end cover is in contact with the second connecting ring, a sealing ring on a first threaded groove in the outer surface of the rear end cover is rotated to be rotated to a second threaded groove in the second connecting ring, the sealing ring is screwed tightly, the sealing ring plays a role in connecting the rear end cover and the second connecting ring, therefore, the motor sealing shell and the rear end cover are installed together, the top strip abuts against the front end cover when the rear end cover is installed, the other end of the motor sealing shell abuts against the first sealing rubber ring inside the rear end cover, the first sealing rubber ring and the second sealing rubber ring play a good sealing role in sealing, and dust are prevented from entering the inside of the motor sealing shell.

Preferably, one side of the outer surface of the motor sealing shell is fixedly connected with a first connecting ring, the other side of the outer surface of the motor sealing shell is fixedly connected with a second connecting ring, a first thread groove is formed in the outer surface of the rear end cover, a second thread groove corresponding to the first thread groove is formed in the outer surface of the second connecting ring, sealing rings are connected to the outer surfaces of the first thread groove and the second thread groove through threads, and insertion holes are symmetrically formed in the two sides of the outer surface of each sealing ring.

Preferably, a plurality of cooling fins are fixedly connected between the first connecting ring and the second connecting ring, and the cooling fins are fixedly connected with the motor sealing shell.

Preferably, one end of the front end cover extends into the extension groove, a connecting sleeve is fixedly inserted in the center of the front end cover, and a sealing bearing is fixedly connected to the inner wall of the connecting sleeve.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the side wall of the motor sealing shell is provided with the extending groove, the front end cover with the second sealing rubber ring is placed into the motor sealing shell by the front end cover, one end with the second sealing rubber ring enters the extending groove, then the rear end cover is installed, the top strip on the rear end cover is inserted into the limiting groove on the inner wall of the motor sealing shell, the top strip props against the front end cover, so that the second sealing rubber ring is tightly attached to the inside of the motor sealing shell, meanwhile, after the rear end cover is installed, the other end of the motor sealing shell can prop against the first sealing rubber ring in the rear end cover, the first sealing rubber ring and the second sealing rubber ring play a good sealing role, dust and rainwater are prevented from entering the inside of the motor sealing shell, and the using effect of the device is greatly improved;

2. first thread groove is seted up through the surface at the rear end cap, the second thread groove corresponding with first thread groove is seted up to the surface of second go-between, there is the sealing washer first thread groove and the surface of second thread groove through threaded connection, the sealing washer plays the effect of connecting rear end cap and second go-between, thereby be in the same place motor seal shell and rear end cap installation, when the rear end cap is installed, the ejector strip withstands the front end cap, thereby it is fixed with the front end cap, it is very simple to install.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a cross-sectional view of the present invention.

In the figure: 1. a motor seal housing; 2. a first connecting ring; 3. a second connection ring; 4. a heat sink; 5. a front end cover; 6. connecting sleeves; 7. sealing the bearing; 8. a rear end cap; 9. a first thread groove; 10. a seal ring; 11. a jack; 12. a second thread groove; 13. a limiting groove; 14. carrying out top strip; 15. a first sealing rubber ring; 16. an extension groove; 17. mounting grooves; 18. and a second sealing rubber ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Example (b): as shown in fig. 1-3, the utility model provides a technical solution: a sealing structure of an electric vehicle motor end cover and a casing comprises a motor sealing casing 1, wherein an extension groove 16 is formed in the side wall of the motor sealing casing 1, a front end cover 5 is arranged on one side inside the motor sealing casing 1, a mounting groove 17 is formed in the end face, close to the motor sealing casing 1, of the front end cover 5, a second sealing rubber ring 18 is sleeved inside the mounting groove 17, the front end cover 5 with the second sealing rubber ring 18 is placed inside the motor sealing casing 1 through the front end cover 5, and one end with the second sealing rubber ring 18 enters the extension groove 16;

the rear end cover 8 is sleeved at the end, which is far away from the front end cover 5, of the motor seal housing 1, a plurality of limiting grooves 13 are formed in the inner wall of the motor seal housing 1, a plurality of top strips 14 distributed in an annular mode are fixedly connected to the inside of the rear end cover 8, the top strips 14 are located inside the limiting grooves 13, the outer surface of the top strips 14 are sleeved with first seal rubber rings 15, the rear end cover 8 is installed, the top strips 14 on the rear end cover 8 are inserted into the limiting grooves 13 in the inner wall of the motor seal housing 1, the front end cover 5 is propped against the top strips 14, the second seal rubber rings 18 are made to be tightly attached to the inside of the motor seal housing 1, meanwhile, after the rear end cover 8 is installed, the other end of the motor seal housing 1 can be propped against the first seal rubber rings 15 inside the rear end cover 8, the first seal rubber rings 15 and the second seal rubber rings 18 both have a good sealing effect, and dust and rainwater are prevented from entering the inside of the motor seal housing 1.

The sealing structure comprises a motor sealing shell 1, a first connecting ring 2, a second connecting ring 3, a first thread groove 9, a second thread groove 12, a sealing ring 10 and inserting holes 11, wherein the first connecting ring 2 is fixedly connected to one side of the outer surface of the motor sealing shell 1, the second connecting ring 3 is fixedly connected to the other side of the outer surface of the motor sealing shell 1, the first thread groove 9 is formed in the outer surface of a rear end cover 8, the second thread groove 12 corresponding to the first thread groove 9 is formed in the outer surface of the second connecting ring 3, the sealing ring 10 is connected to the outer surfaces of the first thread groove 9 and the second thread groove 12 through threads, and the inserting holes 11 are symmetrically formed in the two sides of the outer surface of the sealing ring 10.

Through adopting above-mentioned technical scheme, sealing washer 10 plays the effect of connecting rear end cap 8 and second go-between 3 to install motor seal shell 1 and rear end cap 8 together, when rear end cap 8 was installed, top strip 14 withstood front end cap 5, thereby fixed front end cap 5, it is very simple to install, jack 11 plays the effect of supplementary sealing washer 10 pivoted, insert inside jack 11 with the auxiliary rod, the person of facilitating the use rotates sealing washer 10.

One end of the front end cover 5 extends into the extending groove 16, a connecting sleeve 6 is fixedly inserted in the center of the front end cover 5, a sealing bearing 7 is fixedly connected to the inner wall of the connecting sleeve 6, a plurality of radiating fins 4 are fixedly connected between the first connecting ring 2 and the second connecting ring 3, and the radiating fins 4 are fixedly connected with the motor sealing shell 1.

Through adopting above-mentioned technical scheme, fin 4 plays the radiating effect for motor seal shell 1.

The working principle is as follows: the method comprises the steps of putting a front end cover 5 with a second sealing rubber ring 18 into a motor sealing shell 1, enabling one end, with the second sealing rubber ring 18, of the front end cover 5 to enter an extension groove 16, then installing a rear end cover 8, inserting a top strip 14 on the rear end cover 8 into a limiting groove 13 on the inner wall of the motor sealing shell 1, enabling the top strip 14 to abut against the front end cover 5, enabling the second sealing rubber ring 18 to cling to the inside of the motor sealing shell 1, enabling the rear end cover 8 to be in contact with a second connecting ring 3, rotating a sealing ring 10 on a first threaded groove 9 on the outer surface of the rear end cover 8, rotating the sealing ring 10 to a second threaded groove 12 on the second connecting ring 3, screwing the sealing ring 10, enabling the sealing ring 10 to play a role of connecting the rear end cover 8 and the second connecting ring 3, accordingly installing the motor sealing shell 1 and the rear end cover 8 together, enabling the top strip 14 to abut against the front end cover 5 when the rear end cover 8 is installed, enabling the other end of the motor sealing shell 1 to abut against the first sealing rubber ring 15 inside the rear end cover 8, enabling the first sealing rubber ring 15 and the second sealing rubber ring 18 to play a good role of sealing shell to prevent rainwater from entering the motor sealing shell 1 and preventing the motor sealing shell from entering the motor sealing shell 1.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a seal structure of electric motor car motor end cover and casing, includes motor seal casing (1), its characterized in that: extension groove (16) have been seted up to the lateral wall of motor seal housing (1), the inside one side of motor seal housing (1) is equipped with front end housing (5), mounting groove (17) have been seted up to the terminal surface that front end housing (5) are close to motor seal housing (1), the inside cover of mounting groove (17) is equipped with second sealing rubber ring (18), rear end housing (8) have been cup jointed in the one end activity that motor seal housing (1) kept away from front end housing (5), a plurality of spacing grooves (13) have been seted up to the inner wall of motor seal housing (1), the inside fixedly connected with of rear end housing (8) is a plurality of top strip (14) that are the annular and distribute, and top strip (14) are located the inside of spacing groove (13), and are a plurality of the surface cover of top strip (14) is equipped with first sealing rubber ring (15).

2. The sealing structure of the end cover and the shell of the motor of the electric vehicle as claimed in claim 1, wherein a first connecting ring (2) is fixedly connected to one side of the outer surface of the motor sealing shell (1), and a second connecting ring (3) is fixedly connected to the other side of the outer surface of the motor sealing shell (1).

3. The sealing structure of the end cover and the shell of the motor of the electric vehicle as claimed in claim 2, characterized in that a plurality of cooling fins (4) are fixedly connected between the first connecting ring (2) and the second connecting ring (3), and the cooling fins (4) are fixedly connected with the motor sealing shell (1).

4. A sealing structure of end cover and housing of electric vehicle motor according to claim 1, wherein one end of said front end cover (5) is extended into the inside of the extension groove (16).

5. The sealing structure of the end cover and the shell of the motor of the electric vehicle as claimed in claim 1, wherein a connecting sleeve (6) is fixedly inserted in the center position of the interior of the front end cover (5), and a sealing bearing (7) is fixedly connected to the inner wall of the connecting sleeve (6).

6. The sealing structure of the end cover and the shell of the motor of the electric vehicle as claimed in claim 2, wherein the outer surface of the rear end cover (8) is provided with a first thread groove (9), and the outer surface of the second connecting ring (3) is provided with a second thread groove (12) corresponding to the first thread groove (9).

7. The sealing structure of the end cover and the shell of the motor of the electric vehicle as claimed in claim 6, wherein the outer surfaces of the first thread groove (9) and the second thread groove (12) are connected with a sealing ring (10) through threads, and the two sides of the outer surface of the sealing ring (10) are symmetrically provided with insertion holes (11).