New energy automobile gear

By designing structures such as oil storage chambers, oil outlets, and oil-absorbing sponge rings in the gears of new energy vehicles, the uniform diffusion of lubricating oil is achieved by utilizing centrifugal force, thus solving the problem of uneven lubrication and improving the durability and stability of the gears.

CN224064790UActive Publication Date: 2026-03-31TIANCHANG PRIMA ELECTROMECHANICAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The gears in existing new energy vehicles have difficulty ensuring uniform lubrication during use and lubrication, resulting in insufficient or uneven lubricating oil, which affects the durability and stability of the gears.

Method used

A new energy vehicle gear has been designed, comprising a gear disk seat, an oil reservoir, an oil outlet, an oil guide ramp, an arc-shaped protrusion, and an oil-absorbing sponge ring. It utilizes centrifugal force to evenly diffuse the lubricating oil and export it through the oil outlet. Combined with the oil-absorbing sponge ring, it controls the output of lubricating oil to ensure uniform lubrication.

Benefits of technology

This achieves uniform distribution of lubricating oil, improves the durability and stability of gears, and prevents problems caused by insufficient or uneven lubricating oil.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a new energy automobile gear which comprises a gear disc seat, teeth are evenly distributed on the circumferential side of the radial face of the gear disc seat, an oil storage cavity coaxial with the gear disc seat is formed in the gear disc seat, and a plurality of oil outlet holes penetrating through the side wall of the radial face of the gear disc seat are formed in a circle of the circumferential side of the oil storage cavity. Meanwhile, the multiple oil outlet holes are located in the middles of the adjacent teeth respectively, an oil injection hole communicated with the oil storage cavity is further formed in one side of the gear disc base, and in the gear operation and rotation process, grease in the oil storage cavity can be evenly diffused all around under the centrifugal force effect, so that lubricating oil is swung to the areas of the oil outlet holes, and the lubricating oil is evenly dispersed. And meanwhile, under the cooperation of the oil absorption sponge ring and the like, the lubricating oil gradually seeps out in a small amount and is guided out through the oil outlet holes, lubricating oil supply is conducted between the adjacent teeth, the problem that the lubricating oil is likely to be lacked and uneven in the long-term use process of the gear is effectively solved, and the durability and stability of the gear are improved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive gear technology, specifically a gear for new energy vehicles. Background Technology

[0002] Gears are one of the core components of the transmission system in new energy vehicles, primarily functioning to achieve power conversion and energy recovery. In new energy vehicles, gears transmit and control electrical and thermal energy, realizing power conversion and recovering energy during braking, thus improving the overall energy efficiency of the vehicle. However, in actual use, conventional gear structures often struggle to ensure uniform lubrication during operation and lubrication, and gears themselves lack the ability to distribute lubrication evenly. Therefore, over long-term use, insufficient or uneven lubrication can affect the durability and stability of the gears. This invention provides a novel automotive gear to address these problems as much as possible. Utility Model Content

[0003] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0004] Therefore, the purpose of this utility model is to provide a new energy vehicle gear to solve the problem that the general gear structure mentioned in the background art is difficult to guarantee the uniformity of lubrication during use and lubrication, and the gear itself does not have the effect of lubrication distribution. Therefore, in the long-term use, the durability and stability of the gear may be affected by the lack and unevenness of lubricating oil.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a gear for a new energy vehicle, comprising a gear disk seat, teeth evenly distributed on the radial circumference of the gear disk seat, an oil storage cavity coaxial with the gear disk seat, a plurality of oil outlet holes penetrating the sidewall of the radial surface of the oil storage cavity around the periphery of the oil storage cavity, and the plurality of oil outlet holes being located at the middle part of adjacent teeth, and an oil injection hole communicating with the oil storage cavity on one side of the gear disk seat;

[0006] The oil storage cavity has an oil guiding slope around its inner edge and near the oil outlet, and the oil storage cavity also has an arc-shaped protrusion coaxial with it on one side at its center.

[0007] As a preferred embodiment of the new energy vehicle gear described in this utility model, the gear disk seat has a first connecting end shaft on one side and a second connecting end shaft on the other side, and the first connecting end shaft and the second connecting end shaft are coaxial with the gear disk seat, and the inner sides of the first connecting end shaft and the second connecting end shaft also have keyways.

[0008] As a preferred embodiment of the new energy vehicle gear described in this utility model, an oil-absorbing sponge ring fitted into the inner side of the oil storage cavity and matching its radial edge is also placed therein.

[0009] As a preferred embodiment of the new energy vehicle gear described in this utility model, a first plug cover corresponding to the oil injection hole is also provided on the outer side of the gear disk seat.

[0010] As a preferred embodiment of the new energy vehicle gear described in this utility model, the gear disk seat also has a cleaning hole coaxial with it and connected to the oil storage cavity, and a second plug corresponding to the cleaning hole on one side.

[0011] The second plug is located inside the shaft of the first connecting end, and the diameter of the cleaning hole is larger than the diameter of the oil injection hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: During the operation and rotation of this new energy vehicle gear, the grease inside the oil storage chamber will spread evenly to the surrounding area under the action of centrifugal force, causing the lubricating oil to be thrown to each oil outlet area. At the same time, with the cooperation of the oil-absorbing sponge ring, the lubricating oil gradually seeps out in a small amount and is discharged from the oil outlet, and lubricating oil is replenished between adjacent teeth. This effectively prevents the gear from having problems such as lack of lubricating oil or unevenness during long-term use, and improves the durability and stability of the gear. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0014] Figure 2 This is a side view of the internal structure of the gear of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the gear side and the first connecting end shaft of this utility model after removal;

[0016] Figure 4 This is a schematic diagram of the other side of the gear of this utility model.

[0017] In the diagram: 100, gear disc seat; 110, oil reservoir; 111, oil guide ramp; 112, arc-shaped protrusion; 120, oil outlet; 130, oil injection hole; 140, cleaning hole; 200, gear teeth; 300, first connecting end shaft; 310, second connecting end shaft; 320, keyway; 400, first plug cover; 500, second plug cover; 600, oil-absorbing sponge ring. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0021] Figures 1-4 The diagram shown is a complete structural schematic of a new energy vehicle gear according to this utility model. Please refer to [link / reference]. Figures 1-4 This embodiment of a new energy vehicle gear includes a gear disk seat 100. Teeth 200 are evenly distributed along the radial circumference of the gear disk seat 100. The gear disk seat 100 has an oil reservoir 110 coaxial with it. A plurality of oil outlet holes 120 are located around the periphery of the oil reservoir 110, penetrating the sidewall of the radial surface of the gear disk seat 100. These oil outlet holes 120 are located at the midpoints of adjacent teeth 200. One side of the gear disk seat 100 also has an oil injection hole 130 connected to the oil reservoir 110. An oil guide ramp 111 is located around the edge of the oil reservoir 110 near the oil outlet holes 120. An arc-shaped protrusion 112 coaxial with the center of the oil reservoir 110 is also present on one side of the oil reservoir 110.

[0022] The gear disk holder 100 has a first connecting end shaft 300 on one side and a second connecting end shaft 310 on the other side. The first connecting end shaft 300 and the second connecting end shaft 310 are coaxial with the gear disk holder 100. The inner sides of the first connecting end shaft 300 and the second connecting end shaft 310 also have keyways 320. It can be understood that the gear disk holder 100 can be coaxially connected with the transmission shaft through the first connecting end shaft 300 and the second connecting end shaft 310, and coaxially fixed through the keyway 320 and the key bar, thereby realizing normal gear transmission. During the rotation of the gear, the arc-shaped protrusion 112 can generate a uniform centrifugal force inside the oil storage cavity 110, so that the grease inside the cavity can be evenly diffused to its edge and the oil outlet 120, thereby achieving a uniform lubrication effect. At the same time, the oil guide slope 111 can increase the output pressure of grease through the oil outlet 120 and prevent local accumulation of grease, which is conducive to the smooth output of lubricating oil. An oil-absorbing sponge ring 600, which is fitted into the inner side of the oil storage cavity 110 and matched to its radial edge, is also placed therein. The oil-absorbing sponge ring 600 forms a buffer against the centrifugally discharged grease. Simultaneously, the porous oil-absorbing sponge ring 600 allows lubricating oil to be discharged in small amounts and linearly and evenly through the oil filling hole 130, preventing excessive grease discharge and waste. It is important to note that the lubricating oil supply in the oil storage chamber 110 is only for replenishing or filling the grease used daily by the gears. This replenishment does not require a large output of lubricating oil; only a small amount is needed to maintain normal gear lubrication, thus demonstrating its practicality. Specifically, in this embodiment, during gear operation and rotation, the grease inside the oil storage chamber 110 diffuses evenly in all directions under centrifugal force, causing the lubricating oil to be thrown to the areas of each oil outlet hole 120. Simultaneously, with the cooperation of the oil-absorbing sponge ring 600, etc., the lubricating oil gradually seeps out in small amounts and is discharged through the oil outlet hole 120, replenishing the lubricating oil between adjacent teeth 200. This effectively prevents problems such as insufficient or uneven lubricating oil during long-term use, improving the durability and stability of the gears.

[0023] Furthermore, a first plug cap 400 corresponding to the oil filling hole 130 is also provided on the outer side of the gear disk seat 100. It can be understood that during daily use, when the lubricating oil inside the oil reservoir 110 is insufficient, the first plug cap 400 can be opened and lubricating oil can be injected into the oil reservoir 110 through the oil filling hole 130 without disassembling the gear. It should be noted that the oil filling method can be manual, mechanical automatic, etc., and there is no limitation on this.

[0024] Furthermore, the gear disc seat 100 also has a cleaning hole 140 coaxial with it and connected to the oil reservoir 110, as well as a second plug 500 corresponding to the cleaning hole 140. The second plug 500 is located inside the first connecting end shaft 300, and the diameter of the cleaning hole 140 is larger than the diameter of the oil filling hole 130. It is understood that scale or impurities may accumulate inside the oil reservoir 110 after long-term use. Therefore, during normal use and maintenance, first open the second plug 500, then disassemble the gear, and then insert the high-pressure hose into the cleaning hole 140 to quickly flush the oil reservoir 110. The cleaned grease and impurities will be discharged through the oil filling hole 130. It should be noted that the oil-absorbing sponge ring 600 should be removed before cleaning to prevent obstruction during flushing. After flushing and drying, a new oil-absorbing sponge ring 600 should be inserted into the oil reservoir 110. This process is simple and convenient.

[0025] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A new energy vehicle gear, characterized in that, The gear disc seat (100) is uniformly distributed with gear teeth (200) on the radial surface, and has an oil storage cavity (110) coaxial with the gear disc seat (100) inside, a plurality of oil outlet holes (120) penetrating the radial surface side wall of the gear disc seat (100) on the side of the oil storage cavity (110), and the oil outlet holes (120) are located at the middle part of the adjacent gear teeth (200), and the gear disc seat (100) has an oil injection hole (130) connected with the oil storage cavity (110) on one side. The edge of the oil storage cavity (110) near the oil outlet hole (120) has an oil guide slope (111), and the oil storage cavity (110) has an arc convex (112) coaxial with it on one side.

2. The new energy vehicle gear according to claim 1, characterized in that: The gear disc seat (100) has a first connecting end shaft (300) on one side and a second connecting end shaft (310) on the other side, and the first connecting end shaft (300) and the second connecting end shaft (310) are coaxial with the gear disc seat (100), and the first connecting end shaft (300) and the second connecting end shaft (310) have key grooves (320) on the inner side.

3. The new energy vehicle gear according to claim 1, characterized in that: The oil storage cavity (110) is also provided with an oil absorption sponge ring (600) matched with the radial edge part.

4. The new energy vehicle gear according to claim 1, characterized in that: The gear disc seat (100) is also provided with a first plug cover (400) corresponding to the oil injection hole (130).

5. The new energy vehicle gear according to claim 1, characterized in that: The gear disc seat (100) is also provided with a cleaning hole (140) coaxial with it and connected with the oil storage cavity (110) on one side, and a second plug cover (500) corresponding to the cleaning hole (140). The second plug cover (500) is located on the inner side of the first connecting end shaft (300), and the diameter of the cleaning hole (140) is greater than that of the oil injection hole (130).