Anti-electrocorrosion bearing and new energy automobile suspension stabilizing system high-voltage motor

Abstract

The utility model relates to an anti-electrocorrosion bearing and a new energy automobile suspension stabilizing system high-voltage motor equipped with the anti-electrocorrosion bearing, the anti-electrocorrosion bearing comprises a bearing inner ring, a bearing outer ring, a retainer and a steel ball which are matched with each other, and a plurality of conductive carbon brushes are uniformly fixed at the center of the inner side of the bearing outer ring along the circumferential direction of the bearing outer ring; the conductive carbon brush extends towards the axis direction of the bearing outer ring. By optimizing the structural design, the electrocorrosion-resistant bearing has the functions of being convenient to assemble and preventing the bearing inner ring from falling off, and meanwhile, the conductive carbon brush is integrated into the bearing, so that the electrocorrosion-resistant function under a high-voltage system is realized, the integration level and the high efficiency of the system are improved, and the service life of the system is prolonged. And the requirement of a high-rigidity output bearing under a high-voltage motor (such as 800V) of a suspension stabilizing system of a new energy automobile is met.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, specifically to an anti-electro-corrosion bearing, particularly an anti-electro-corrosion double-row angular contact ball bearing, and a high-voltage motor for a new energy vehicle suspension stability system incorporating the anti-electro-corrosion double-row angular contact ball bearing. Background Technology

[0002] Some existing anti-electro-corrosion bearings integrate conductive structures on the bearing to protect the motor, such as the bearing electro-corrosion protection conductive ring and motor disclosed in CN217036976U. However, such bearings have complex structures, long assembly time, and low assembly efficiency, resulting in high manufacturing costs. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a simple, easy-to-assemble, and low-cost anti-electro-corrosion bearing and a high-voltage motor for the suspension stabilization system of new energy vehicles.

[0004] This utility model is achieved through the following technical solution:

[0005] This utility model provides an anti-electro-corrosion bearing, including a mating inner bearing ring, an outer bearing ring, a cage, and steel balls. A plurality of conductive carbon brushes are uniformly fixed to the inner center of the outer bearing ring along its circumferential direction, and the conductive carbon brushes extend toward the axial direction of the outer bearing ring.

[0006] To facilitate the installation of each conductive carbon brush, a ring of through holes is uniformly opened around the center of the outer ring of the bearing along its circumference, penetrating the thickness of its wall. One end of the conductive carbon brush is fixed in the through hole, and the other end extends towards the axis of the outer ring of the bearing.

[0007] To facilitate the guidance and positioning of assembly tools, an inwardly recessed annular groove is formed at the center of the outer wall of the bearing outer ring along its circumference, and the through hole is formed within the annular groove.

[0008] To facilitate the installation of the conductive carbon brush without affecting the overall shape and structure of the bearing, the conductive carbon brush is cylindrical, with one end pressed into the through hole, and its outer end face flush with the bottom end face of the annular groove.

[0009] Preferably, the conductive carbon brush is made of conductive fibers.

[0010] The anti-electrochemical corrosion bearing of this utility model is preferably a double-row angular contact ball bearing. The outer ring of the double-row angular contact ball bearing has annular steps at both axial ends. The cage is fitted inside the outer ring of the bearing, and the inner ring of the bearing is fitted inside the cage. The steel balls are disposed inside the cage, with the outer side of the steel balls supported by the annular steps and the inner side of the steel balls supported by the inner ring of the bearing.

[0011] This utility model also provides a high-voltage motor for a new energy vehicle suspension stabilization system, wherein the output shaft of the high-voltage motor for the new energy vehicle suspension stabilization system is equipped with the aforementioned anti-electro-corrosion bearing.

[0012] The beneficial effects of this utility model are: the anti-electro-corrosion bearing, through optimized structural design, has the functions of convenient assembly and preventing the bearing inner ring from falling off. At the same time, the conductive carbon brush is integrated into the bearing, thereby realizing the anti-electro-corrosion function under high voltage system, improving the system integration and efficiency, and meeting the high rigidity output bearing requirements of high voltage motor (such as 800V) in the suspension stability system of new energy vehicles. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the anti-electro-corrosion bearing of this utility model;

[0014] Figure 2 This is an exploded view of the anti-electro-corrosion bearing of this utility model.

[0015] Figure 3 This is a cross-sectional view of the anti-electro-corrosion bearing of this utility model. Detailed Implementation

[0016] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0017] Combination Figure 1-3 The illustrated anti-electrochemical corrosion bearing includes a mating inner ring 2, an outer ring 1, a cage 3, and steel balls 4. In this embodiment, the bearing is a double-row angular contact ball bearing. The outer ring 1 of the double-row angular contact ball bearing has annular steps 8 at both axial ends. The cross-section of the annular steps 8 is arc-shaped. The cage 3 is fitted inside the outer ring 1, and the inner ring 2 is fitted inside the cage 3. The steel balls 4 are disposed inside the cage 3. The outer side of the steel balls 4 is supported by the annular steps 8, and the inner side of the steel balls 4 is supported by the inner ring 2. That is, the inner ring 2, the cage 3, and the steel balls 4 are confined at the annular steps 8, which can prevent the inner ring 2 from falling off.

[0018] The outer ring 1 of the bearing has an inwardly recessed annular groove 6 at the center of its circumference. A series of through holes 7, penetrating the wall thickness, are uniformly formed in the annular groove 6. Each through hole 7 is fixed with a conductive carbon brush 5. The conductive carbon brush 5 is cylindrical and made of conductive fiber. Its outer end is fixed to the bearing by a fixing ring, and its inner end extends towards the axis of the bearing. The length of the extension is designed according to the size of the central shaft. The diameter of the fixing ring is slightly larger than the diameter of the through hole 7. It can be pressed into the through hole 7 by riveting. Its outer end face is flush with the bottom end face of the annular groove 6 (on the same circle). By designing an annular groove 6, a series of conductive carbon brushes 5 can be easily pressed into place at once using a special pressing tool, which is convenient for assembly.

[0019] This utility model also provides a high-voltage motor for a new energy vehicle suspension stabilization system. The output shaft of the high-voltage motor for the new energy vehicle suspension stabilization system is equipped with the aforementioned anti-electro-corrosion bearing, which improves the system's integration and efficiency, and meets the high-rigidity output bearing requirements of high-voltage motors (such as 800V) in new energy vehicle suspension stabilization systems.

[0020] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "between", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0022] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A bearing resistant to electro-corrosion, comprising a mating inner ring, an outer ring, a cage, and steel balls, characterized in that: A plurality of conductive carbon brushes are uniformly fixed on the inner center of the outer ring of the bearing along its circumference, and the conductive carbon brushes extend toward the axial direction of the outer ring of the bearing.

2. The anti-electro-corrosion bearing according to claim 1, characterized in that: The outer ring of the bearing has a ring of through holes that penetrate its wall thickness evenly around its circumference. One end of the conductive carbon brush is fixed in the through hole, and the other end extends toward the axis of the outer ring of the bearing.

3. The anti-electro-corrosion bearing according to claim 2, characterized in that: The outer ring of the bearing has an inwardly recessed annular groove at the center of its circumference, and the through hole is formed in the annular groove.

4. The anti-electro-corrosion bearing according to claim 3, characterized in that: The conductive carbon brush has a cylindrical structure, with one end pressed into a through hole, and its outer end face is flush with the bottom end face of the annular groove.

5. The anti-electro-corrosion bearing according to claim 4, characterized in that: The conductive carbon brush is made of conductive fibers.

6. The anti-electro-corrosion bearing according to claim 1, characterized in that: The anti-electro-corrosion bearing is a double-row angular contact ball bearing. The outer ring of the double-row angular contact ball bearing has annular steps at both axial ends. The cage is fitted inside the outer ring of the bearing, and the inner ring of the bearing is fitted inside the cage. The steel balls are disposed inside the cage, with the outer side of the steel balls supported by the annular steps and the inner side of the steel balls supported by the inner ring of the bearing.

7. A high-voltage motor for a suspension stabilization system of a new energy vehicle, characterized in that: The output shaft of the high-voltage motor of the new energy vehicle suspension stability system is equipped with an anti-electro-corrosion bearing as described in any one of claims 1-6.

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