CN210273681U

CN210273681U - High leakproofness engine motor lid for new energy automobile

Info

Publication number: CN210273681U
Application number: CN201921137527.3U
Authority: CN
Inventors: 商平和; 姜绍雄; 陈力军
Original assignee: Xinchang Xinchai Machinery Co ltd
Current assignee: Xinchang Xinchai Machinery Co ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-04-07
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses a high leakproofness motor cover for new energy automobile, including the apron, the center of apron is equipped with the shaft hole, and the outside circumference of apron distributes has the otic placode, is equipped with the mounting hole on the otic placode, is equipped with fixed recess on the apron, is equipped with the boss in the fixed recess, and the center of boss is equipped with and holds the recess, and the shaft hole is located the center of holding the recess, is equipped with the sealing ring in holding the recess, is equipped with the clamping ring on the boss, and the clamping ring is spacing the sealing ring in holding; the utility model discloses novel structure uses reliably, and the leakproofness is good, can effectively avoid making the inside dampness of intaking of motor because sealing performance is bad.

Description

High leakproofness engine motor lid for new energy automobile

Technical Field

The utility model belongs to the technical field of auto-parts, especially, relate to high leakproofness engine motor lid for new energy automobile.

Background

In order to promote the strategy of sustainable development, reduce energy consumption and reduce the influence of greenhouse effect on the environment, people begin to use a large amount of clean energy. Therefore, new energy automobiles are produced at the same time. As one of the most important parts of a new energy automobile, the motor of the new energy automobile must have excellent sealing performance, and if the motor is wet or water enters due to poor sealing, the wire ends and winding wires can be directly influenced, so that the motor is short-circuited and burnt.

Motor cover among the prior art is connected with the motor housing cooperation, and motor shaft stretches out from the shaft hole of motor cover, but the leakproofness between the shaft hole of motor cover and the motor shaft is poor, and water can get into between the gap of this junction, and inside getting into the motor along the motor shaft, lead to motor trouble, sealing performance is unsatisfactory, seriously influences the life of motor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solves the above-mentioned technical problem that exists among the prior art, provides high leakproofness motor lid for the new energy automobile, and novel structure uses reliably, and the leakproofness is good, can effectively avoid making the inside dampness of intaking of motor because sealing performance is bad.

In order to solve the technical problem, the utility model discloses a following technical scheme:

high leakproofness engine motor lid for new energy automobile, including the apron, the center of apron is equipped with shaft hole, its characterized in that: the outer side of the cover plate is circumferentially distributed with lug plates, mounting holes are formed in the lug plates, a fixing groove is formed in the cover plate, a boss is arranged in the fixing groove, a containing groove is formed in the center of the boss, a shaft hole is formed in the center of the containing groove, a sealing ring is arranged in the containing groove, a pressing ring is arranged on the boss, and the sealing ring is limited in the containing groove by the pressing ring; this motor cover novel structure uses reliably, and the leakproofness is good, can effectively avoid making the inside intaking of motor wet because sealing performance is bad.

Furthermore, reinforcing ribs are circumferentially distributed in the fixed groove and connected with the boss, the structural strength of the cover plate is improved due to the arrangement of the reinforcing ribs, and the connecting strength between the boss and the cover plate is improved due to the reinforcing ribs.

Furthermore, supporting ribs are circumferentially distributed on the compression ring and fixed on the reinforcing ribs, and the supporting ribs and the reinforcing ribs are fixedly connected, so that the connection area between the compression ring and the cover plate is increased, and the reliability of the installation of the compression ring is improved.

Furthermore, the supporting rib is connected with a fastening bolt, the reinforcing rib is provided with a limiting screw hole, the limiting screw hole is connected with one end of the fastening bolt, detachable connection of the pressing ring is achieved, the limiting screw hole limits the fastening bolt to be separated, the supporting rib is tightly pressed on the reinforcing rib by the fastening bolt, the fastening bolt is not easy to separate, and the installation reliability is high.

Further, be equipped with mounting groove on the apron, mounting groove is located the outside of fixed recess, is equipped with the sealing washer in the mounting groove, and after motor cover and motor casing were connected, the sealing washer was laminated with motor casing's terminal surface, and the gap is little, has improved the leakproofness between motor cover and the motor casing, prevents that water from getting into inside the motor from the gap department of motor cover and motor casing contact surface.

Further, be equipped with the axle sleeve in the shaft hole, the axle sleeve plays radial limiting displacement to the motor shaft, avoids the motor shaft to take place radial drunkenness, has improved the stability of motor shaft, and the axle sleeve closely seals the motor shaft for inside water can not permeate the motor along the motor shaft, improved the sealing performance between motor lid and the motor shaft.

Furthermore, the sealing ring shields the joint between the shaft sleeve and the shaft hole, so that water is prevented from entering the motor from the gap between the shaft sleeve and the shaft hole joint, and the sealing performance is improved.

Furthermore, the outer diameter of the sealing ring is matched with the diameter of the accommodating groove, the inner diameter of the sealing ring is matched with the inner diameter of the shaft sleeve, and the sealing ring is connected with the accommodating groove in a matched mode, so that the reliability of the sealing ring installed in the accommodating groove is improved; the sealing ring also plays radial limiting action on the motor shaft, and the sealing ring sleeves the tightly-sealed motor shaft to play a secondary sealing action, so that water cannot permeate into the motor along the motor shaft, and the sealing performance between the motor cover and the motor shaft is further improved.

Furthermore, the bottom of clamping ring is equipped with the position circle, is equipped with positioning groove on the boss, and positioning groove and position circle phase-match are gone into with the position circle of clamping ring bottom to aim at the positioning groove card on the boss during installation for the clamping ring is fixed a position on the boss fast, has reduced the installation degree of difficulty of clamping ring.

The utility model discloses owing to adopted above-mentioned technical scheme, following beneficial effect has:

the clamping ring is limited in the accommodating groove, the clamping ring is pressed by the clamping ring, on one hand, the sealing ring cannot be separated from the accommodating groove, the reliability of the sealing ring in the accommodating groove is improved, on the other hand, the sealing ring is tightly attached to the accommodating groove, the gap between the two contact surfaces is reduced, the sealing performance is improved, and the leakage is not easy. The compression ring shields a gap between the sealing ring and the accommodating groove, so that the faults of short circuit, burning and the like of the motor caused by the fact that water permeates into the accommodating groove and continuously enters the motor from the gap between the sealing ring and the accommodating groove are avoided; the sealing ring sleeves the tightly-sealed motor shaft, so that water cannot permeate into the motor along the motor shaft, and the sealing performance between the motor cover and the motor shaft is further improved.

The utility model discloses novel structure uses reliably, and the leakproofness is good, can effectively avoid making the inside dampness of intaking of motor because sealing performance is bad.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

fig. 1 is a schematic structural diagram of a high-sealing engine motor cover for a new energy automobile;

FIG. 2 is a schematic structural view of the connection between the cover plate and the sealing ring;

FIG. 3 is a schematic structural view of the middle cover plate of the present invention;

fig. 4 is the structure diagram of the middle pressure ring of the present invention.

In the figure: 1-cover plate; 2-ear plate; 3-mounting holes; 4, mounting a groove; 5-sealing ring; 6-fixing the groove; 7-a boss; 8-a receiving recess; 9-shaft hole; 10-shaft sleeve; 11-a sealing ring; 12-a pressure ring; 13-reinforcing ribs; 14-support ribs; 15-fastening bolts; 16-limit screw holes; 17-a positioning ring; 18-positioning groove.

Detailed Description

As shown in fig. 1 to 4, do the utility model discloses high leakproofness engine motor lid for new energy automobile, including apron 1, the outside circumference of apron 1 distributes and has otic placode 2, is equipped with mounting hole 3 on the otic placode 2, is convenient for install 1 with the apron and fixes to motor housing. Be equipped with mounting groove 4 on apron 1, be equipped with sealing washer 5 in the mounting groove 4, after motor lid and motor casing are connected, sealing washer 5 and motor casing's terminal surface laminating, the gap is little, has improved the leakproofness between motor lid and the motor casing, prevents that water from getting into inside the motor from the gap department of motor lid and motor casing contact surface.

Be equipped with fixed recess 6 on apron 1, fixed recess 6 is located the inboard of mounting groove 4, is equipped with boss 7 in the fixed recess 6, has improved apron 1's surface texture intensity. The center of boss 7 is equipped with and holds recess 8, and the center that holds recess 8 is equipped with shaft hole 9, is equipped with axle sleeve 10 in the shaft hole 9, and axle sleeve 10 plays radial limiting displacement to the motor shaft, avoids the motor shaft to take place radial drunkenness, has improved the stability of motor shaft, and axle sleeve 10 covers closely seals the motor shaft for inside water can not improve the sealing performance between motor lid and the motor shaft along motor shaft infiltration motor. A sealing ring 11 is arranged in the accommodating groove 8, the outer diameter of the sealing ring 11 is matched with the diameter of the accommodating groove 8, the inner diameter of the sealing ring 11 is matched with the inner diameter of the shaft sleeve 10, and the sealing ring 11 is connected with the accommodating groove 8 in a matched mode, so that the reliability of the sealing ring 11 installed in the accommodating groove 8 is improved; the sealing ring 11 also plays radial limiting displacement to the motor shaft, and 11 covers the closely sealed motor shaft of sealing ring, play the secondary seal effect for inside water can not permeate the motor along the motor shaft, and then improved the sealing performance between motor lid and the motor shaft. The sealing ring 11 shields the joint between the shaft sleeve 10 and the shaft hole 9, so that water is prevented from entering the motor from the gap between the joint of the shaft sleeve 10 and the shaft hole 9, and the sealing performance is improved.

Be equipped with clamping ring 12 on boss 7, clamping ring 12 is spacing in holding recess 8 with sealing ring 11, and sealing ring 11 is pushed down to clamping ring 12, makes sealing ring 11 deviate from in holding recess 8 on the one hand, has improved sealing ring 11 and has installed the reliability at holding recess 8, and on the other hand makes sealing ring 11 hug closely and holds recess 8, reduces the gap between the two contact surfaces, and the leakproofness improves, is difficult for the seepage. The clamping ring 12 shields the gap between the sealing ring 11 and the accommodating groove 8, and avoids water from permeating into the accommodating groove 8 and continuing to enter the motor from the gap between the sealing ring 11 and the accommodating groove 8, so that the motor is short-circuited and burnt and other faults occur. The internal diameter of clamping ring 12 is greater than the internal diameter of sealing ring 11, and clamping ring 12 inner wall does not contact with the motor shaft, prevents that clamping ring 12 from producing the influence to the motor shaft rotation.

Reinforcing ribs 13 are distributed in the fixing groove 6 in the circumferential direction, the reinforcing ribs 13 are connected with the boss 7, the structural strength of the cover plate 1 is improved due to the arrangement of the reinforcing ribs 13, and the connecting strength between the boss 7 and the cover plate 1 is improved due to the reinforcing ribs 13. Supporting ribs 14 are circumferentially distributed on the pressing ring 12, fastening bolts 15 are connected to the supporting ribs 14, limiting screw holes 16 are formed in the reinforcing ribs 13, the limiting screw holes 16 are connected with one ends of the fastening bolts 15, detachable connection of the pressing ring 12 is achieved, the limiting screw holes 16 limit the fastening bolts 15 to be separated, the supporting ribs 14 are tightly pressed on the reinforcing ribs 13 through the fastening bolts 15, separation is not prone to occurring, and installation reliability is high. The supporting ribs 14 and the reinforcing ribs 13 are fixedly connected, so that the connection area between the pressure ring 12 and the cover plate 1 is increased, and the installation reliability of the pressure ring 12 is improved. The bottom of clamping ring 12 is equipped with position ring 17, is equipped with positioning groove 18 on the boss 7, and positioning groove 18 and position ring 17 phase-match, aim at positioning groove 18 on the boss 7 with the position ring 17 of clamping ring 12 bottom during the installation and go into to block for clamping ring 12 fixes a position on boss 7 fast, is convenient for to hole fixed fastening bolt 15, has reduced the installation degree of difficulty of clamping ring 12.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to solve the same technical problems and achieve the same technical effects are all covered by the protection scope of the present invention.

Claims

1. High leakproofness engine motor lid for new energy automobile, including the apron, the center of apron is equipped with shaft hole, its characterized in that: the improved structure of the automobile cover plate comprises a cover plate and is characterized in that lug plates are circumferentially distributed on the outer side of the cover plate, mounting holes are formed in the lug plates, fixing grooves are formed in the cover plate, bosses are arranged in the fixing grooves, accommodating grooves are formed in the centers of the bosses, shaft holes are formed in the centers of the accommodating grooves, sealing rings are arranged in the accommodating grooves, pressing rings are arranged on the bosses, and the pressing rings are limited in the accommodating grooves.

2. The high-sealing-performance engine motor cover for the new energy automobile according to claim 1, characterized in that: reinforcing ribs are circumferentially distributed in the fixed groove and connected with the bosses.

3. The high-sealing-performance engine motor cover for the new energy automobile according to claim 2, characterized in that: supporting ribs are circumferentially distributed on the pressing ring and fixed on the reinforcing ribs.

4. The high-sealing-performance engine motor cover for the new energy automobile according to claim 3, characterized in that: the supporting rib is connected with a fastening bolt, the reinforcing rib is provided with a limiting screw hole, and the limiting screw hole is connected with one end of the fastening bolt.

5. The high-sealing-performance engine motor cover for the new energy automobile according to claim 1, characterized in that: the cover plate is provided with a mounting groove, the mounting groove is located on the outer side of the fixing groove, and a sealing ring is arranged in the mounting groove.

6. The high-sealing-performance engine motor cover for the new energy automobile according to claim 1, characterized in that: and a shaft sleeve is arranged in the shaft hole.

7. The high-sealing-performance engine motor cover for the new energy automobile according to claim 6, characterized in that: the sealing ring shields the joint between the shaft sleeve and the shaft hole.

8. The high-sealing-performance engine motor cover for the new energy automobile according to claim 7, characterized in that: the outer diameter of the sealing ring is matched with the diameter of the containing groove, and the inner diameter of the sealing ring is matched with the inner diameter of the shaft sleeve.

9. The high-sealing-performance engine motor cover for the new energy automobile according to claim 1, characterized in that: the bottom of clamping ring is equipped with the position circle, be equipped with positioning groove on the boss, positioning groove with the position circle phase-match.