Fixing structure of motor shell of new energy automobile

Abstract

The utility model discloses a fixing structure of a new energy automobile motor shell, which is characterized in that a motor shell is arranged on the left side of the top of a bottom plate, the right side of the rear end of the motor shell is fixedly connected with a speed reducer shell in a penetrating manner, and the outer side of the speed reducer shell is connected with a sealing plate in a clamping manner; according to the utility model, the motor shell and one side of the top of the bottom plate can be rapidly installed and positioned, the situation of installation position deviation caused by direct attachment of the motor shell and the bottom plate is avoided, and a large number of welding marks at the joint of the outer sides of the motor shell and the speed reducer shell can be effectively reduced; the welding fixing attractiveness of the motor shell, the speed reducer shell and the bottom plate is effectively guaranteed, the sealing gasket can seal the gap position of connection of the end cover, the end cover connection position outside the speed reducer shell and the motor shell is protected, and the sealing performance is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile motor housings, and in particular to a fixing structure of a motor housing of a new energy automobile. Background Art

[0002] New energy vehicles use unconventional automotive fuels as their power source (or use conventional automotive fuels and adopt new on-board power devices), and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies, and new structures.

[0003] In the prior art, the motor housing of new energy vehicles is generally a motor housing and a reducer housing that are interpenetrating and fixedly connected, the motor and the reducer are integrally formed, and the structure of the motor humidifying reducer is complicated. During the installation process, a large number of welding operations are required to complete the connection with the fixed base plate, which greatly affects the appearance of the automobile motor. In addition, the assembly accuracy with the fixed base plate is insufficient, and welding errors are easily caused by displacement of the installation position.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a fixing structure of the motor housing of a new energy vehicle to overcome the above-mentioned technical problems existing in the existing related technology.

[0006] To this end, the specific technical solution adopted by the utility model is as follows: the fixing structure of the motor housing of a new energy vehicle includes a base plate, a motor housing, and a reducer housing. The motor housing is arranged on the left side of the top of the base plate, and the right side of the rear end of the motor housing is fixedly connected to the reducer housing. A sealing plate is snap-connected to the outside of the reducer housing, a first welding seat is connected to the top of the base plate, and a second welding seat is connected to the rear side of the first welding seat.

[0007] As a further optimization, a first arc-shaped groove is dug on the left side of the top of the base plate, the left side structures of the first welding seat and the second welding seat match the structure of the first arc-shaped groove, and annular grooves are dug at equal intervals on the inner wall of the motor housing.

[0008] As a further optimization, a positioning hole is provided on the bottom side of the inner wall of the annular groove, a connecting hole is provided on the bottom side of the inner wall of the first arc-shaped groove, a limiting tube is provided at the top end of the connecting hole, a threaded groove is provided on the inner wall of the limiting tube, and a fixing bolt is threadedly connected through the threaded groove.

[0009] As a further optimization, a welding opening is provided on the right side of the first welding seat, an axis support seat is connected to the front side of the top of the second welding seat, the bottom side of the outer wall of the motor housing is connected to the inner wall of the first arc-shaped groove, and is respectively attached to the left sides of the first welding seat and the second welding seat.

[0010] As a further optimization, a second arc-shaped groove is dug on the rear side of the second welding seat, and fitting notches are dug equidistantly on the front side of the inner wall of the second arc-shaped groove, and the positions of the fitting notches correspond to the positions of the reinforcing ribs on the outside of the output shaft end of the reducer housing.

[0011] As a further optimization, the shaft support seat includes a bearing seat and a support plate. The support plate is equidistantly arranged at the bottom rear side of the bearing seat. A ball bearing is installed inside the bearing seat. The center point of the aperture of the ball bearing corresponds to the position of the output shaft end of the reducer housing.

[0012] As a further optimization, the sealing plate includes an L-shaped connecting plate and a mounting hole. The mounting hole is arranged at the bottom corner of the front side of the L-shaped connecting plate. The L-shaped connecting plate is provided with a positioning bolt through the mounting hole, and is connected and fixed to a threaded hole opened on one side of the inner wall of the second arc-shaped groove through the positioning bolt.

[0013] As a further optimization, a sealing gasket is fixedly connected to the inner wall of the L-shaped connecting plate, and the position of the sealing gasket corresponds to the gap where the reducer housing is connected.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the motor housing can be quickly installed and positioned on the top side of the base plate, while avoiding the situation where the motor housing and the base plate are directly fitted and cause the installation position to be offset, and a large number of welding marks can be effectively reduced at the connection between the motor housing and the outer side of the reducer housing, and the aesthetics of the welding and fixing of the motor housing, the reducer housing and the base plate are effectively guaranteed. The sealing gasket can seal the gap at the end cover connection, so that the end cover connection outside the reducer housing and the motor housing is protected, and the sealing performance is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the appearance structure of the bottom plate and the first welding seat of the utility model;

[0018] Figure 3 This is a schematic diagram of the split structure of the second welding seat and the shaft support seat of the utility model;

[0019] Figure 4 This is a schematic diagram of the appearance structure of the sealing plate of the utility model.

[0020] In the figure: 1, base plate; 2, motor housing; 3, reducer housing; 4, sealing plate; 5, first welding seat; 6, second welding seat; 7, first arc-shaped groove; 8, annular groove; 9, positioning hole; 10, connecting hole; 11, limiting tube; 12, fixing bolt; 13, welding port; 14, shaft support seat; 15, second arc-shaped groove; 16, fitting notch; 17, bearing seat; 18, support plate; 19, ball bearing; 20, L-shaped connecting plate; 21, mounting hole; 22, sealing gasket. DETAILED DESCRIPTION

[0021] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0022] Example 1

[0023] like Figures 1 to 4As shown, the fixed structure of the motor housing of the new energy vehicle includes a base plate 1, a motor housing 2, and a reducer housing 3. The motor housing 2 is arranged on the left side of the top of the base plate 1, and the right side of the rear end of the motor housing 2 is fixedly connected with the reducer housing 3. A sealing plate 4 is connected to the outer side of the reducer housing 3 by snapping, and a first welding seat 5 is connected to the top of the base plate 1. The rear side of the first welding seat 5 is connected to the second welding seat 6. A first arc-shaped groove 7 is dug on the left side of the top of the base plate 1. The left side structures of the first welding seat 5 and the second welding seat 6 match the structure of the first arc-shaped groove 7. Annular grooves 8 are dug equidistantly on the inner wall of the motor housing 2. Positioning holes 9 are penetrated on the bottom side of the inner wall of the annular groove 8. The inner wall of the first arc-shaped groove 7 A connecting hole 10 is provided on the bottom side, and a limiting tube 11 is provided on the top of the connecting hole 10. A threaded groove is provided on the inner wall of the limiting tube 11, and a fixing bolt 12 is threadedly connected through the threaded groove. The motor housing 2 is installed inside the first arc-shaped groove 7 on the left side of the base plate 1, so that the limiting tube 11 on the top side of the inner wall of the first arc-shaped groove 7 is embedded in the positioning hole 9 in the annular groove 8 on the inner wall of the motor housing 2, and then the fixing bolts 12 are respectively extended into the interior of the motor housing 2, and then connected and fixed with the threaded groove on the inner wall of the sleeved limiting tube 11, so that the motor housing 2 can be quickly installed and positioned on the top side of the base plate 1 while avoiding the situation where the motor housing 2 and the base plate 1 are directly fitted and the installation position is offset.

[0024] Example 2

[0025] like Figures 1 to 4As shown, the fixing structure of the motor housing of a new energy vehicle has a welding port 13 extending through the right side of the first welding seat 5, a shaft support seat 14 is connected to the front side of the top of the second welding seat 6, the bottom side of the outer wall of the motor housing 2 is connected to the inner wall of the first arc-shaped groove 7, and is respectively fitted to the left side of the first welding seat 5 and the second welding seat 6, a second arc-shaped groove 15 is dug on the rear side of the second welding seat 6, and a fitting notch 16 is dug equidistantly on the front side of the inner wall of the second arc-shaped groove 15, and the positions of the fitting notches 16 correspond to the positions of the reinforcing ribs on the outer side of the output shaft end of the reducer housing 3, respectively. The shaft support seat 14 includes a bearing seat 17 and a support plate 18, and the support plate 18 is equidistantly arranged at the bottom of the rear side of the bearing seat 17, and a ball bearing 19 is installed inside the bearing seat 17, and the center point of the aperture of the ball bearing 19 corresponds to the position of the output shaft end of the reducer housing 3. The reducer housing 3 on one side of the housing 2 will be installed in the first arc-shaped groove 7 along with the motor housing 2, and the bottom of the reducer housing 3 will fit into the second arc-shaped groove 15, and the reinforcing ribs arranged on the outside of the inner shaft hole of the reducer housing 3 will be embedded in the corresponding fitting notch 16, and can be sleeved on the outside of the reducer output shaft shaft through the ball bearing 19 inside the bearing seat 17, which can further improve the accuracy of assembly and placement of the motor housing 2, the reducer housing 3 and the base plate 1, and welding operations can be performed in the gap between the second arc-shaped groove 15 and the reducer housing 3 and the welding port 13, which can effectively reduce the large number of welding marks at the outer connection of the motor housing 2 and the reducer housing 3, and effectively ensure the beauty of the welding and fixation of the motor housing 2, the reducer housing 3 and the base plate 1.

[0026] Example 3

[0027] like Figures 1 to 4 As shown, the fixing structure of the motor housing of a new energy vehicle, the sealing plate 4 thereof includes an L-shaped connecting plate 20 and a mounting hole 21, the mounting hole 21 is through-set at the bottom corner of the front side of the L-shaped connecting plate 20, the L-shaped connecting plate 20 is through-set with a positioning bolt through the mounting hole 21, and is connected and fixed with a threaded hole opened on one side of the inner wall of the second arc-shaped groove 15 through the positioning bolt, a sealing gasket 22 is fixedly connected to the inner wall of the L-shaped connecting plate 20, the position of the sealing gasket 22 corresponds to the gap where the reducer housing 3 is connected, the L-shaped connecting plate 20 can be used to penetrate the mounting hole 21 on its outer wall through the positioning bolt, and be connected and fixed with the threaded hole opened on one side of the inner wall of the second arc-shaped groove 15, so that the L-shaped connecting plate 20 can be engaged in the gap between the reducer housing 3 and the end cover connected to the outside, and the gap where the end cover is connected can be sealed by the sealing gasket 22, so that the connection between the reducer housing 3 and the end cover outside the motor housing 2 is protected, and the sealing performance is greatly improved.

[0028] The utility model installs the motor housing 2 inside the first arc-shaped groove 7 on the left side of the bottom plate 1, so that the limiting tube 11 on the top side of the inner wall of the first arc-shaped groove 7 is embedded in the positioning hole 9 in the annular groove 8 on the inner wall of the motor housing 2, and then extends into the motor housing 2 through the fixing bolts 12, and then is connected and fixed with the threaded groove on the inner wall of the sleeved limiting tube 11. The reducer housing 3 on one side of the motor housing 2 will be installed in the first arc-shaped groove 7 at the same time, and the bottom of the reducer housing 3 will fit into the second arc-shaped groove 15, and the reinforcing ribs arranged on the outer side of the inner shaft hole of the reducer housing 3 will be embedded in the inner wall of the motor housing 2. The corresponding fitting notch 16 can be arranged on the outer side of the output shaft of the reducer through the ball bearing 19 inside the bearing seat 17, and the welding operation can be performed in the gap between the second arc groove 15 and the reducer housing 3 and the welding port 13. The L-shaped connecting plate 20 can be penetrated through the mounting hole 21 on its outer wall by the positioning bolt, and connected and fixed with the threaded hole opened on one side of the inner wall of the second arc groove 15, so that the L-shaped connecting plate 20 can be engaged in the gap between the reducer housing 3 and the end cover connected to the outside, and the gap where the end cover is connected can be sealed by the sealing gasket 22.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixing structure for a motor housing of a new energy vehicle, comprising a base plate (1), a motor housing (2), and a reducer housing (3), characterized in that: The motor housing (2) is arranged on the left side of the top of the base plate (1); the right side of the rear end of the motor housing (2) is fixedly connected to the reducer housing (3); a sealing plate (4) is snap-connected to the outside of the reducer housing (3); a first welding seat (5) is connected to the top of the base plate (1); and a second welding seat (6) is connected to the rear side of the first welding seat (5).

2. The fixing structure of the motor housing of a new energy vehicle according to claim 1 is characterized in that: A first arc-shaped groove (7) is excavated on the left side of the top of the base plate (1); the left side structures of the first welding seat (5) and the second welding seat (6) match the structure of the first arc-shaped groove (7); and annular grooves (8) are excavated at equal intervals on the inner wall of the motor housing (2).

3. The fixing structure of the motor housing of a new energy vehicle according to claim 2 is characterized in that: A positioning hole (9) is provided through the bottom of the inner wall of the annular groove (8), a connecting hole (10) is provided through the bottom of the inner wall of the first arc-shaped groove (7), a limiting tube (11) is provided through the top of the connecting hole (10), a threaded groove is provided on the inner wall of the limiting tube (11), and a fixing bolt (12) is threadedly connected through the threaded groove.

4. The fixing structure of the motor housing of a new energy vehicle according to claim 1 is characterized in that: A welding opening (13) is provided through the right side of the first welding seat (5), a shaft support seat (14) is connected to the front side of the top of the second welding seat (6), and the bottom side of the outer wall of the motor housing (2) is connected to the inner wall of the first arc-shaped groove (7), and is respectively fitted to the left sides of the first welding seat (5) and the second welding seat (6).

5. The fixing structure of the motor housing of a new energy vehicle according to claim 4 is characterized in that: The shaft support seat (14) comprises a bearing seat (17) and a support plate (18), wherein the support plate (18) is equidistantly arranged at the rear bottom of the bearing seat (17), and a ball bearing (19) is installed inside the bearing seat (17), wherein the center point of the aperture of the ball bearing (19) corresponds to the position of the output shaft end of the reducer housing (3).

6. The fixing structure of the motor housing of a new energy vehicle according to claim 1, characterized in that: A second arc-shaped groove (15) is excavated on the rear side of the second welding seat (6), and fitting notches (16) are excavated at equal intervals on the front side of the inner wall of the second arc-shaped groove (15), and the positions of the fitting notches (16) respectively correspond to the positions of the reinforcing ribs on the outer side of the output shaft end of the reducer housing (3).

7. The fixing structure of the motor housing of a new energy vehicle according to claim 6, characterized in that: The sealing plate (4) comprises an L-shaped connecting plate (20) and a mounting hole (21). The mounting hole (21) is provided through the bottom corner of the front side of the L-shaped connecting plate (20). A positioning bolt is provided through the mounting hole (21) on the L-shaped connecting plate (20), and the positioning bolt is connected and fixed to a threaded hole provided on one side of the inner wall of the second arc-shaped groove (15).

8. The fixing structure of the motor housing of a new energy vehicle according to claim 7 is characterized in that: A sealing gasket (22) is fixedly connected to the inner wall of the L-shaped connecting plate (20), and the position of the sealing gasket (22) corresponds to the gap where the reducer housing (3) is connected.

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