Oil injection nozzle, motor oil injection system and motor

By using balls and elastic parts in the oil injection nozzle and combining with the detachable design of the connector, the problems of difficulty in disassembling the oil injection nozzle and oil contamination in the prior art are solved, convenient replacement of the oil injection nozzle and effective protection of the oil circuit are achieved, and the operation stability of the motor is improved.

CN222910561UActive Publication Date: 2025-05-27GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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Patent Information

Application Number
CN202422053542.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-23
Publication Date
2025-05-27
Estimated Expiration
2034-08-23

AI Technical Summary

Technical Problem

In the prior art, the oil injection nozzle cannot be easily disassembled and replaced, and the oil injection channel cannot effectively protect the internal oil circuit of the motor, resulting in oil pollution and unstable motor operation.

Method used

Through the cooperation of balls and elastic parts, the oil inlet and oil outlet function is realized, and the connection is detachable and connected with the oil inlet and oil outlet holes through the connection parts to improve the efficiency of the oil inlet nozzle replacement and prevent grease contamination inside the oil circuit.

Benefits of technology

It realizes convenient installation and disassembly of the oil injection nozzle, ensures the sealing of the oil circuit, avoids grease pollution, and improves the operating stability and reliability of the motor.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222910561U_ABST
Patent Text Reader

Abstract

The utility model provides an oil injection nozzle, a motor oil injection system and a motor wherein the oil injection nozzle comprises an oil injection housing, the oil injection housing is internally provided with a hollow oil injection channel, and the top end and the bottom end of the outer side of the oil injection housing are respectively provided with a first connecting piece and a second connecting piece which are used for installing the oil injection housing. A ball and an elastic piece are arranged in the oil injection channel, the ball is located at the top end of the oil injection channel, and the outer diameter of the ball is larger than or equal to the inner diameter of the top end of the oil injection channel. The two ends of the elastic piece are connected with the bottom end of the oil injection channel and the ball respectively. According to the oil injection nozzle, oil inlet and oil outlet are achieved in the mode that the ball and the elastic piece are matched with differential pressure, meanwhile, the connecting piece is detachably connected with the oil outlet hole and the oil inlet hole, the oil injection nozzle replacement efficiency is improved, and oil in an oil way is prevented from being polluted.
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Claims

1. A grease injection nozzle, characterized in that: The invention comprises an oil injection housing (11), wherein a hollow oil injection channel is arranged inside the oil injection housing (11), and a first connecting piece and a second connecting piece for mounting the oil injection housing are respectively arranged at the top and bottom of the outer side of the oil injection housing (11), and a ball (14) and an elastic piece (15) are arranged in the oil injection channel, wherein the ball (14) is located at the top of the oil injection channel, and the outer diameter of the ball (14) is greater than or equal to the inner diameter of the top of the oil injection channel; and the two ends of the elastic piece (15) are respectively connected to the bottom of the oil injection channel and the ball (14).

2. A grease injection nozzle according to claim 1, characterized in that: The connecting piece is a thread located outside the oil injection housing (11).

3. The oiling nozzle according to claim 1, characterized in that: The outer side wall of the oil injection housing (11) is provided with a partition plate (16), the partition plate (16) is distributed along the circumferential direction of the oil injection housing (11), and the first connecting piece and the second connecting piece are respectively provided on opposite sides of the partition plate (16).

4. A grease injection nozzle according to claim 3, characterized in that: The first connecting piece is a first external thread (12) surrounding the outside of the oil injection housing (11), and the second connecting piece is a second external thread (13) surrounding the outside of the oil injection housing (11).

5. The oiling nozzle according to claim 3, characterized in that: The cross section of the oil injection housing (11) is hexagonal, the cross section of the partition plate (16) is hexagonal, and the cross-sectional area of ​​the partition plate (16) is greater than the cross-sectional area of ​​the oil injection housing (11).

6. The oiling nozzle according to claim 3, characterized in that: The first connecting piece is located at the top of the oil filling housing (11); when the oil filling nozzle is installed inside the oil filling hole (22), the second connecting piece is fixedly connected to the inner wall of the oil filling hole (22), and the first connecting piece is connected to the protective cap (17).

7. The oiling nozzle according to claim 3, characterized in that: The second connecting piece is located at the bottom end of the oil filling housing (11); when the oil filling nozzle is installed in the oil outlet hole (23), the first connecting piece is fixedly connected to the inner wall of the oil outlet hole (23), and the second connecting piece is connected to the protective cap (17).

8. A motor oil injection system, characterized in that: The motor body (21) comprises an oil filling hole (22), an oil outlet hole (23), and an oil circulation channel connecting the oil filling hole (22) and the oil outlet hole (23), wherein the oil filling hole (22) is fixedly connected to a first oil filling nozzle, and the oil outlet hole (23) is fixedly connected to a second oil filling nozzle, and the first oil filling nozzle and the second oil filling nozzle are both oil filling nozzles according to any one of claims 1 to 7.

9. A motor oil injection system according to claim 8, characterized in that: The outer wall of the oil filling housing (11) is provided with a partition (16), and the partition (16) is distributed along the circumferential direction of the oil filling housing (11), and the first connecting member and the second connecting member are respectively provided on opposite sides of the partition (16); the first oil filling nozzle is fixedly connected to the inner wall of the oil filling hole (22) through the second connecting member, and the second oil filling nozzle is fixedly connected to the inner wall of the oil outlet hole (23) through the first connecting member.

10. A motor, characterized in that: A motor oil injection system comprising the one described in claim 8.