Oil return baffle

By designing a return oil baffle with an annular oil circuit and multiple return oil holes, the problem of low return oil efficiency of traditional baffles was solved, achieving stable control of transmission oil temperature and improved transmission efficiency.

CN223908755UActive Publication Date: 2026-02-13JIANGXI TIANJIAN LONGWEI AUTO PARTS CO LTD
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Patent Information

Application Number
CN202520386309.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-02-13
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

Traditional baffles have low oil return efficiency, resulting in unstable transmission oil temperature control and affecting transmission efficiency.

Method used

A return oil baffle was designed, comprising an annular vertical plate and an arc vertical plate forming an annular oil passage, with multiple return oil holes and inclined structures, combined with a movable sealing plate and return oil channel, to optimize the oil flow path and improve return oil efficiency.

Benefits of technology

It improved oil return efficiency, stabilized transmission oil temperature, and enhanced transmission efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223908755U_ABST
    Figure CN223908755U_ABST
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Abstract

The utility model relates to the technical field of automobile parts, and provides an oil return baffle which comprises a baffle body and a baffle seat, one side face of the baffle body is an oil blocking face, the baffle seat is arranged on the other side face of the baffle body, an annular vertical plate is arranged on the outer edge of the oil blocking face, and a plurality of arc-shaped vertical plates are arranged on the inner side of the annular vertical plate. Circular tracks corresponding to the arc-shaped vertical plates are equal in diameter, an annular oil way is formed between the arc-shaped vertical plates and the annular vertical plate and used for arranging an impeller, a first oil return hole is formed in the portion, located on the inner sides of the arc-shaped vertical plates, of the baffle body, and the blocking plate is arranged on the outlet side of the first oil return hole in a swinging mode so as to open or close the first oil return hole. At least two second oil return holes are further formed in the portion, located on the annular oil way, of the baffle body, and the baffle seat is provided with oil return channels correspondingly communicated with the second oil return holes. By means of the technical scheme, the problem that in the prior art, an oil return baffle is low in oil return efficiency is solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, specifically, relates to an oil return baffle. BACKGROUND

[0002] The performance of the gearbox has a great relationship with the energy consumption of the automobile, which mainly can be divided into two aspects: one is to have suitable oil amount, too much oil amount will lead to large oil stirring loss and high oil temperature; the second is the limitation of the internal structure of the gearbox, which often appears irregular places, and the splashed oil will fall back when colliding with these places, thereby not being able to effectively lubricate the parts. Both of them reduce the transmission efficiency of the gearbox. The oil in the gearbox needs to be returned for cooling, but the traditional oil baffle has low oil return efficiency, which leads to unstable oil temperature control, and a baffle structure with high oil return efficiency is needed. SUMMARY

[0003] The utility model provides a kind of oil return baffle, solve the problem of low oil return efficiency of oil return baffle in prior art.

[0004] The technical scheme of the utility model is as follows:

[0005] An oil return baffle, the oil return baffle includes baffle main part and baffle seat, wherein the side surface of the baffle main part is an oil blocking surface, the baffle seat is arranged on the other side surface of the baffle main part, the outer edge on the oil blocking surface is provided with an annular stand, the inner side of the annular stand is provided with multiple arc-shaped stands, the circular tracks corresponding to the multiple arc-shaped stands are equidiameter, the annular oil passage is formed between the arc-shaped stand and the annular stand, and the annular oil passage is used for arranging an impeller, the part of the baffle main part inside the arc-shaped stand is provided with a first oil return hole, a plugging plate is swingably arranged on the outlet side of the first oil return hole to open or close the first oil return hole, the part of the baffle main part in the annular oil passage is further provided with at least two second oil return holes, and the baffle seat is provided with an oil return channel corresponding to the second oil return hole.

[0006] At least two third oil return holes are further arranged on the side wall of the annular stand, a guide plate is arranged on the side wall of the annular stand, there is a gap between the guide plate and the annular stand, and the third oil return hole is located in the gap.

[0007] The second oil return hole is provided with a first inclined surface, a second inclined surface is arranged in the oil return channel, the first inclined surface is inclined downward along the tangent direction of the rotation of the impeller, and the second inclined surface is inclined in the opposite direction to the first inclined surface.

[0008] A mounting hole is arranged at the center of the baffle main part.

[0009] The baffle seat is provided with a recess.

[0010] The baffle seat is provided as a hollow structure.

[0011] The baffle body is further provided with a locking hole, and a bushing is arranged in the locking hole.

[0012] The working principle and beneficial effects of the utility model are as follows:

[0013] In the utility model, a kind of oil return baffle is disclosed, specifically, baffle body is installed by baffle seat, and annular stand and arc stand are provided on the oil retaining surface of baffle body, wherein the arc stand is discontinuous multi-section form, so as to install other components, and the track corresponding to multi-section arc stand is circular and equal in diameter, so that annular oil passage is formed between the arc stand of inside and the annular stand of outside, and impeller is installed in annular oil passage, to improve oil return efficiency, first, first oil return hole is formed on baffle body, and first oil return hole is located at the inside of arc baffle, movable plugging plate is installed at the outlet side of first oil return hole, plugging plate can be selectively installed on baffle seat, to open or close first oil return hole, and oil pressure increases in the inside, then discharged from first oil return hole, in addition, at least two second oil return holes are further provided on baffle body, which are located in annular oil passage range, and can be reasonably arranged, and average distribution is achieved, oil return channel is provided on baffle seat and communicated with second oil return hole, to further improve oil return efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further explained in detail in combination with the drawings and specific embodiment.

[0015] Fig. 1 It is structure schematic view of the utility model;

[0016] Fig. 2 It is internal structure schematic view of second oil return hole of the utility model;

[0017] Fig. 3 It is sectional structure schematic view of first oil return hole of the utility model;

[0018] In the drawing: 1, baffle body, 2, baffle seat, 3, annular stand, 4, arc stand, 5, annular oil passage, 6, first oil return hole, 7, plugging plate, 8, second oil return hole, 9, oil return channel, 10, third oil return hole, 11, oil guide plate, 12, first inclined surface, 13, second inclined surface, 14, mounting hole, 15, accommodation slot, 16, locking hole, 17, bushing. DETAILED DESCRIPTION

[0019] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0020] like Figs. 1-3 As shown in the figure, this embodiment proposes an oil return baffle, which includes a baffle body 1 and a baffle seat 2. One side of the baffle body 1 is an oil-blocking surface, and the baffle seat 2 is disposed on the other side of the baffle body 1. An annular vertical plate 3 is disposed on the outer edge of the oil-blocking surface. Multiple arc-shaped vertical plates 4 are disposed on the inner side of the annular vertical plate 3. The circular trajectories corresponding to the multiple arc-shaped vertical plates 4 are of equal diameter. An annular oil passage 5 is formed between the arc-shaped vertical plates 4 and the annular vertical plate 3, and the annular oil passage 5 is used to house an impeller. A first oil return hole 6 is disposed on the portion of the baffle body 1 located on the inner side of the arc-shaped vertical plate 4. A sealing plate 7 is swayably disposed on the outlet side of the first oil return hole 6 to open or close the first oil return hole 6. At least two second oil return holes 8 are also disposed on the portion of the baffle body 1 located on the annular oil passage 5. The baffle seat 2 is provided with an oil return channel 9 corresponding to and communicating with the second oil return holes 8.

[0021] In this embodiment, a return oil baffle is disclosed. Specifically, the baffle body 1 is installed via a baffle seat 2. An annular vertical plate 3 and an arc-shaped vertical plate 4 are provided on the oil-blocking surface of the baffle body 1. The arc-shaped vertical plate 4 is a discontinuous multi-segment form to facilitate the installation of other components. The trajectory corresponding to the multi-segment arc-shaped vertical plate 4 is circular and of equal diameter. Therefore, an annular oil passage 5 is formed between the inner arc-shaped vertical plate 4 and the outer annular vertical plate 3. The impeller is installed in the annular oil passage 5. To improve the return oil efficiency, a first return oil hole is first opened on the baffle body 1. 6. The first oil return hole 6 is located inside the arc-shaped baffle. A movable sealing plate 7 is installed on the outlet side of the first oil return hole 6. The sealing plate 7 can be installed on the baffle seat 2 to open or close the first oil return hole 6. When the oil pressure inside increases, it is discharged from the first oil return hole 6. In addition, at least two second oil return holes 8 are provided on the baffle body 1. They are located within the annular oil circuit 5 and can be reasonably arranged and evenly distributed. An oil return channel 9 is provided on the baffle seat 2 to communicate with the second oil return holes 8, further improving the oil return efficiency.

[0022] At least two third oil return holes 10 are also provided on the side wall of the annular vertical plate 3. An oil guide plate 11 is provided on the side wall of the annular vertical plate 3. There is a gap between the oil guide plate 11 and the annular vertical plate 3. The third oil return holes 10 are located in the gap.

[0023] In the embodiment, a third oil return hole 10 is further formed in the annular vertical plate 3, and the third oil return hole 10 is on the side wall of the annular vertical plate 3, and a guide plate 11 is arranged on the side wall of the annular vertical plate 3, and a gap is formed between the guide plate 11 and the annular vertical plate 3, and the third oil return hole is in the gap, so that the oil on the side wall is discharged through the third oil return hole 10.

[0024] The second oil return hole 8 is provided with a first inclined surface 12, and the oil return channel 9 is provided with a second inclined surface 13, the first inclined surface 12 is inclined downward along the tangent direction of the rotation direction of the impeller, and the second inclined surface 13 is opposite to the inclined direction of the first inclined surface 12.

[0025] In the embodiment, the side edge of the second oil return hole 8 is provided with a first inclined surface 12, and the oil return channel 9 is provided with a second inclined surface 13, wherein the first inclined surface 12 is inclined downward along the tangent direction of the rotation direction of the impeller, and it can be seen from the drawings that the oil liquid can enter the second oil return hole 8, and the second inclined surface 13 is opposite to the first inclined surface 12, which helps to discharge all the oil liquid in the oil return channel 9 and avoid accumulation.

[0026] The center of the baffle body 1 is provided with a mounting hole 14.

[0027] In the embodiment, the center of the baffle body 1 is provided with a mounting hole 14, which is used for mounting components such as bearings or shafts.

[0028] The baffle seat 2 is provided with a space-allowing groove 15.

[0029] In the embodiment, the baffle seat 2 on the other side of the baffle body 1 is provided with a space-allowing groove 15, which provides space for the installation of shaft components and avoids interference.

[0030] The baffle seat 2 is provided as a hollow structure.

[0031] In the embodiment, the baffle seat is provided as a hollow structure, so that the baffle can be lightened.

[0032] The baffle body 1 is further provided with a locking hole 16, and the locking hole 16 is provided with a bushing 17.

[0033] In the embodiment, the baffle body 1 is provided with a locking hole 16, and the locking hole 16 also penetrates the baffle seat 2, and the locking hole 16 is provided with a bushing 17, which is convenient for connection.

[0034] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An oil return baffle, characterized by, The oil return baffle comprises a baffle body (1) and a baffle seat (2), wherein one side of the baffle body (1) is an oil blocking surface, the baffle seat (2) is arranged on the other side of the baffle body (1), an outer edge on the oil blocking surface is provided with an annular vertical plate (3), the inner side of the annular vertical plate (3) is provided with a plurality of arc-shaped vertical plates (4), the circular tracks corresponding to the plurality of arc-shaped vertical plates (4) are equidiameter, an annular oil path (5) is formed between the arc-shaped vertical plate (4) and the annular vertical plate (3), and the annular oil path (5) is used for arranging an impeller, the part of the baffle body (1) on the inner side of the arc-shaped vertical plate (4) is provided with a first oil return hole (6), a blocking plate (7) is swingably arranged on the outlet side of the first oil return hole (6) to open or close the first oil return hole (6), the part of the baffle body (1) on the annular oil path (5) is further provided with at least two second oil return holes (8), and the baffle seat (2) is provided with an oil return channel (9) corresponding to the second oil return hole (8) in communication.

2. The oil return baffle of claim 1, wherein, At least two third oil return holes (10) are further arranged on the side wall of the annular vertical plate (3), a guide plate (11) is arranged on the side wall of the annular vertical plate (3), the guide plate (11) has a gap with the annular vertical plate (3), and the third oil return hole (10) is located in the gap.

3. The oil return baffle of claim 1, wherein, The second oil return hole (8) is provided with a first inclined surface (12), the oil return channel (9) is provided with a second inclined surface (13), the first inclined surface (12) is inclined downward along the tangent direction of the rotation of the impeller, and the second inclined surface (13) is opposite to the inclination direction of the first inclined surface (12).

4. The oil return baffle of claim 1, wherein, A mounting hole (14) is arranged at the center of the baffle body (1).

5. The oil return baffle of claim 1, wherein, The baffle seat (2) is provided with a clearance slot (15).

6. The oil return baffle of claim 5, wherein, The baffle seat (2) is provided as a hollow structure.

7. The oil return baffle of claim 1, wherein, A locking hole (16) is further arranged on the baffle body (1), and a bushing (17) is arranged in the locking hole (16).