Motor with oil cooling structure

Abstract

The utility model discloses a motor with an oil cooling structure, which comprises a shell, the front side of the shell is provided with a detachable front end cover assembly, the rear side of the shell is provided with a detachable rear end cover assembly, the front end cover assembly comprises an annular front cover plate, and the rear end cover assembly comprises an annular rear cover plate. The front end cover assembly comprises an annular front cover plate, a first oil cooling channel and a second oil cooling channel are arranged on the side wall of the front cover plate, the rear end cover assembly comprises an annular rear cover plate, a third oil cooling channel is arranged on the side wall of the rear cover plate, a bridging oil channel is arranged on the outer wall of the shell, and a second oil cooling channel is arranged on the side wall of the bridging oil channel. And the bridging oil channel is communicated with the first oil cooling channel and the third oil cooling channel. Through the first oil cooling channel, the second oil cooling channel and the third oil cooling channel, the heating unit of the motor is fully cooled, the effect is obvious, and the reliability and durability of the motor are improved.

Description

Technical Field

[0001] This utility model relates to an electric motor, and more specifically, an electric motor with an oil-cooled structure. Background Technology

[0002] With the development of automotive electrification, electric vehicles have become a new mode of transportation. For electric vehicles, the importance of motor heat dissipation performance is self-evident. Current oil-cooled motors have overly complex structures, high manufacturing costs, and their heat dissipation effect still needs improvement. Utility Model Content

[0003] Therefore, it is necessary to provide a motor with an oil-cooled structure to address the aforementioned technical problems.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A motor with an oil-cooled structure is characterized in that the motor includes a housing, a detachable front cover assembly is provided on the front side of the housing, and a detachable rear cover assembly is provided on the rear side of the housing.

[0006] The front cover assembly includes an annular front cover plate, and a first oil cooling channel and a second oil cooling channel are provided on the side wall of the front cover plate.

[0007] The outer end of the first oil cooling channel is provided with a first channel thread, and a first oil seal screw is provided on the first channel thread. The side wall of the first oil cooling channel is provided with an axially arranged first inner guide countersunk hole and an axially arranged first outer guide countersunk hole.

[0008] The outer end of the second oil cooling channel is provided with a second channel threaded opening, and a second oil seal screw is provided inside the second channel threaded opening. The side wall of the second oil cooling channel is provided with an axially arranged through second inner guide hole and an axially arranged second outer guide countersunk hole.

[0009] The rear end cover assembly includes an annular rear cover plate, and a third oil cooling channel is provided on the side wall of the rear cover plate.

[0010] The outer end of the third oil cooling channel is provided with a third channel threaded opening, and a third oil seal screw is provided on the third channel threaded opening.

[0011] The outer end of the third oil cooling channel is provided with an axially arranged third outer guide hole, and the inner end of the third oil cooling channel is provided with an axially arranged third inner guide hole.

[0012] The bottom of the housing is provided with an oil return screw hole, and an oil seal screw is provided on the oil return screw hole. The outer wall of the housing is provided with a bridging oil passage, which is connected to the first oil cooling passage and the third oil cooling passage.

[0013] In a preferred embodiment of this utility model, both the first oil cooling channel and the second oil cooling channel are arranged radially.

[0014] In a preferred embodiment of this utility model, the third oil cooling channels are all arranged radially.

[0015] In a preferred embodiment of this utility model, the opening direction of the third outer guide hole is opposite to that of the third inner guide hole.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This utility model provides a motor with an oil-cooling structure. Through the first oil-cooling channel, the second oil-cooling channel and the third oil-cooling channel, the heat-generating unit of the motor is fully cooled, with obvious effect, which improves the reliability and durability of the motor. Attached Figure Description

[0018] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the motor with oil cooling structure according to this utility model;

[0020] Figure 2 for Figure 1 An exploded view of the three-dimensional structure of the motor with an oil-cooled design.

[0021] Figure 3 for Figure 2 An exploded view of the three-dimensional structure of the front cover assembly of the motor.

[0022] Figure 4 for Figure 3 A magnified view of the details of region A in the diagram;

[0023] Figure 5 for Figure 3 A magnified view of the details of region B in the diagram;

[0024] Figure 6 for Figure 3 A three-dimensional structural diagram of the front cover plate of the front cover assembly in the middle;

[0025] Figure 7 for Figure 6 A cross-sectional view of the front cover along the CC line;

[0026] Figure 8 for Figure 7 A magnified view of the details of region D in the diagram;

[0027] Figure 9 for Figure 2 An exploded view of the three-dimensional structure of the rear end cover assembly of the motor.

[0028] Figure 10 for Figure 9 A detailed magnified view of region E in the diagram;

[0029] Figure 11 for Figure 9 A partial structural diagram of the rear cover plate of the rear cover assembly in the diagram;

[0030] Figure 12 for Figure 11 A magnified view of the details of region F in the diagram;

[0031] Figure 13 for Figure 2 An exploded three-dimensional structural diagram of the motor housing.

[0032] Figure 14 for Figure 13 A detailed magnified diagram of region G in the image;

[0033] The markings in the diagram are explained as follows:

[0034] 1. Motor with oil cooling structure; 2. Housing; 200. Bridging oil passage; 21. Oil return screw hole; 22. Housing oil seal screw; 3. Front end cover assembly; 30. Front cover plate; 301. First oil cooling channel; 3011. First channel screw hole; 3012. First inner guide countersunk hole; 3013. First outer guide countersunk hole; 302. Second oil cooling channel; 3021. Second channel screw hole; 3022. Second inner guide through hole; 3023. Second outer guide countersunk hole; 31. First oil seal screw; 32. Second oil seal screw; 4. Rear end cover assembly; 40. Rear cover plate; 401. Third oil cooling channel; 4011. Third channel screw hole; 4012. Third inner guide hole; 4013. Third outer guide hole; 41. Third oil seal screw. Detailed Implementation

[0035] 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 making a clearer and more definite definition of the scope of protection of the present invention.

[0036] like Figures 1 to 14 As shown, the motor 1 with oil cooling structure includes a housing 2, a detachable front end cover assembly 3 is provided on the front side of the housing 2, and a detachable rear end cover assembly 4 is provided on the rear side of the housing 2.

[0037] The front cover assembly 3 includes an annular front cover plate 30. A first oil cooling channel 301 and a second oil cooling channel 302 are provided on the side wall of the front cover plate 30. Both the first oil cooling channel 301 and the second oil cooling channel 302 are arranged radially.

[0038] The outer end of the first oil cooling channel 301 is provided with a first channel screw 3011, and a first oil seal screw 31 is provided on the first channel screw 3011. The side wall of the first oil cooling channel 301 is provided with an axially arranged first inner guide countersunk hole 3012 and an axially arranged first outer guide countersunk hole 3013.

[0039] The outer end of the second oil cooling channel 302 is provided with a second channel screw 3021, and a second oil seal screw 32 is provided inside the second channel screw 3021. The side wall of the second oil cooling channel 302 is provided with an axially arranged through second inner guide hole 3022 and an axially arranged second outer guide countersunk hole 3023.

[0040] The rear cover assembly 4 includes an annular rear cover plate 40, and a third oil cooling channel 401 is provided on the side wall of the rear cover plate 40. The third oil cooling channel 401 is arranged radially.

[0041] The outer end of the third oil cooling channel 401 is provided with a third channel screw 4011, and a third oil seal screw 41 is provided on the third channel screw 4011.

[0042] The outer end of the third oil cooling channel 401 is provided with an axially arranged third outer guide hole 4013, and the inner end of the third oil cooling channel 401 is provided with an axially arranged third inner guide hole 4012. The opening direction of the third outer guide hole 4013 is opposite to that of the third inner guide hole 4012.

[0043] The bottom of the housing 2 is provided with an oil return screw hole 21, and an oil seal screw 22 is provided on the oil return screw hole 21. The outer wall of the housing 2 is provided with a bridging oil passage 200, which is connected to the first oil cooling passage 301 and the third oil cooling passage 401, which will be further explained later.

[0044] The working principle of the motor 1 with oil cooling structure is explained below.

[0045] like Figure 1 As shown, during the installation and use of the motor, a front gearbox housing is installed on the outside of the front cover assembly 3. Figure 1 (Not shown in the image), a rear gearbox housing is mounted on the outside of the rear cover assembly 4. Figure 1 (Not shown in the text).

[0046] When the motor is working, the cooling oil enters the first oil cooling channel 301 from the first outer guide countersunk hole 3013 of the front cover plate 30, and then flows out from the first inner guide countersunk hole 3012 into the front gearbox housing.

[0047] Simultaneously, the cooling oil in the first oil cooling channel 301 enters the bridging oil channel 200 on the outer wall of the housing 2, and then enters the third oil cooling channel 401. The cooling oil then enters the rear gearbox housing to cool the rear gearbox housing and the bearing at the center of the rear cover plate 40. It should be noted that the cooling oil entering the rear gearbox housing will enter the motor through pre-set notches on the silicon steel sheet to cool the motor windings.

[0048] In addition, cooling oil enters the second oil cooling channel 302 from the second outer guide countersunk hole 3023 of the front cover plate 30, and then enters the bearing chamber at the center of the motor from the second inner guide through hole 3022, and cools the bearing at the center of the front cover plate 30.

[0049] The first oil cooling channel 301, the second oil cooling channel 302 and the third oil cooling channel 401 are used to fully cool the heat-generating unit of the motor, which has a significant effect and improves the reliability and durability of the motor.

[0050] However, this is not the only possibility. Any variations or substitutions conceived without inventive effort should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope defined in the claims.

Claims

1. A motor with an oil-cooled structure, characterized in that, The motor (1) with oil cooling structure includes a housing (2), a detachable front cover assembly (3) is provided on the front side of the housing (2), and a detachable rear cover assembly (4) is provided on the rear side of the housing (2). The front cover assembly (3) includes an annular front cover plate (30), and a first oil cooling channel (301) and a second oil cooling channel (302) are provided on the side wall of the front cover plate (30). The outer end of the first oil cooling channel (301) is provided with a first channel screw (3011), and a first oil seal screw (31) is provided on the first channel screw (3011). The side wall of the first oil cooling channel (301) is provided with an axially arranged first inner guide countersunk hole (3012) and an axially arranged first outer guide countersunk hole (3013). The outer end of the second oil cooling channel (302) is provided with a second channel screw (3021), and a second oil seal screw (32) is provided inside the second channel screw (3021). The side wall of the second oil cooling channel (302) is provided with an axially arranged through second inner guide through hole (3022) and an axially arranged second outer guide countersunk hole (3023). The rear cover assembly (4) includes an annular rear cover plate (40), and a third oil cooling channel (401) is provided on the side wall of the rear cover plate (40). The outer end of the third oil cooling channel (401) is provided with a third channel screw (4011), and a third oil seal screw (41) is provided on the third channel screw (4011). The third oil cooling channel (401) has an axially arranged third outer guide hole (4013) at its outer end and an axially arranged third inner guide hole (4012) at its inner end. The bottom of the housing (2) is provided with an oil return screw hole (21), and an oil seal screw (22) is provided on the oil return screw hole (21). The outer wall of the housing (2) is provided with a bridging oil passage (200), and the bridging oil passage (200) is connected to the first oil cooling passage (301) and the third oil cooling passage (401).

2. The motor with oil-cooled structure according to claim 1, characterized in that, The first oil cooling channel (301) and the second oil cooling channel (302) are both arranged radially.

3. The motor with oil-cooled structure according to claim 1, characterized in that, The third oil cooling channel (401) is arranged radially.

4. The motor with oil-cooled structure according to claim 1, characterized in that, The opening direction of the third outer guide hole (4013) is opposite to that of the third inner guide hole (4012).

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