Integrated motor structure with VDO sensor

Abstract

The utility model discloses an integrated motor structure with a VDO sensor, which comprises a stator assembly, a rotor assembly, a casing, a front end cover, a rear end cover, a rear cover, a VDO sensor, a signal gear, a grounding ring body and a grounding ring support. A rear cover is fixedly installed on the rear end cover, a VDO sensor is fixedly installed on the rear cover, a rear cover plate is further fixedly installed on the rear cover, a grounding ring support is fixedly installed in the rear cover, a grounding ring body is fixedly installed on the grounding ring support, one end of the rotor assembly penetrates through the rear end cover and extends into the rear cover, and the other end of the rotor assembly extends into the rear cover. One end of the rotor assembly arranged in the rear cover is fixedly connected with a signal gear, the rear cover is arranged at one end of the rotor assembly in a covering mode, a VDO sensor and a grounding ring are integrated, monitoring of the vehicle speed and the mileage is achieved, meanwhile, prevention measures of motor shaft current are added, and the failure risk of a bearing is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to an integrated motor structure with a VDO sensor. Background Art

[0002] With the continuous development of new energy commercial vehicle technology, the requirements for integration, lightweight, and long driving range of new energy commercial vehicles are becoming increasingly higher, which puts higher requirements on the integration and lightweight of electric drive systems.

[0003] At present, most of the VDO sensors of the whole vehicle are installed on the axle or gearbox to monitor the speed and mileage of the whole vehicle. The rotor part of the VDO sensor has a large number of teeth, a large volume and a large weight, which is not conducive to the lightweight of the whole vehicle and power system.

[0004] This patent involves an integrated motor structure with a VDO sensor. In addition to the stator assembly, rotor assembly, front and rear end covers, and housing structures commonly used in new energy vehicle motors, this patent also has signal gears, VDO sensors, rear covers, grounding rings and other structures. The VDO sensor and grounding ring are integrated, which not only realizes the monitoring of vehicle speed and mileage, but also the number of teeth on the signal gear being tested is only 6 to 8, which is a small number of teeth. The rotor being tested is small in size and light in weight, which effectively reduces the weight of the electric drive system and the vehicle. At the same time, preventive measures for motor shaft current are added, effectively reducing the risk of bearing failure. Utility Model Content

[0005] The main purpose of the utility model is to provide an integrated motor structure with a VDO sensor.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] An integrated motor structure with a VDO sensor comprises a stator assembly, a rotor assembly, a casing, a front end cover, a rear end cover, a rear shield, a VDO sensor, a signal gear, a grounding ring body and a grounding ring bracket. The stator assembly and the rotor assembly are arranged in the casing. The front end cover and the rear end cover are fixedly mounted on both ends of the casing respectively. A junction box is fixedly mounted on the front end cover, a rear shield is fixedly mounted on the rear end cover, a VDO sensor is fixedly mounted on the rear shield, a rear cover plate is also fixedly mounted on the rear shield, a grounding ring bracket is fixedly mounted in the rear shield, a grounding ring body is fixedly mounted on the grounding ring bracket, one end of the rotor assembly passes through the rear end cover and extends into the rear shield, and one end of the rotor assembly placed in the rear shield is fixedly connected to the signal gear, and the rear shield is arranged on one end of the rotor assembly.

[0008] Furthermore, the signal gear includes an optical axis section and a gear section. The optical axis section is provided with an inner step to cooperate with the tail end of the rotating shaft in the rotor assembly. The outer ring surface of the optical axis section is slidably connected to the grounding ring body. The outer ring surface of the gear section is evenly distributed on the circumference and formed by a tooth portion formed by a plurality of teeth.

[0009] Furthermore, a mounting boss is fixedly provided in the rear cover, a threaded hole is fixedly provided at the center of the mounting boss, a VDO sensor is fixedly installed in the threaded hole, and the VDO sensor is mounted on one side of the signal gear.

[0010] Furthermore, a carbon brush is fixedly mounted on the grounding ring body, and the carbon brush is connected to the outer ring surface of the signal gear in sliding contact.

[0011] Furthermore, bracket mounting holes are fixedly provided at both ends of the grounding ring bracket, a avoidance groove is fixedly provided at the center of the grounding ring bracket, and grounding ring mounting holes are fixedly provided at both sides of the avoidance groove.

[0012] Furthermore, the number of gears in the toothed portion is 6-8.

[0013] Furthermore, the mounting boss is formed by extending and bending the rear cover toward the inner ring of the rear cover.

[0014] Furthermore, the boss is formed by an integrally formed convex block provided on the rear cover.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model is an integrated motor structure. In addition to the stator assembly, rotor assembly, front and rear end covers, casing and other structures commonly used in new energy vehicle motors, this patent also has signal gears, VDO sensors, rear covers, grounding rings and other structures. The VDO sensor and grounding ring are integrated, which not only realizes the monitoring of vehicle speed and mileage, but also the signal gear to be measured has only 6 to 8 teeth, which is a small number of teeth. The rotor part to be measured is small in size and light in weight, which effectively reduces the weight of the electric drive system and the whole vehicle. At the same time, preventive measures for motor shaft current are added, effectively reducing the risk of bearing failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a main cross-sectional structural diagram of the utility model;

[0018] Figure 2 It is a partial enlarged view of the main cross section of the utility model;

[0019] Figure 3 It is a three-dimensional diagram of the rear cover of Example 1 of the utility model;

[0020] Figure 4 A three-dimensional diagram of the rear cover of Embodiment 2 of the present utility model;

[0021] Figure 5 This is a three-dimensional diagram of the grounding ring bracket of the utility model;

[0022] Figure 6 It is a stereoscopic diagram of the signal gear of the present utility model.

[0023] Attached photos

[0024] 1. Stator assembly; 2. Rotor assembly; 3. Casing; 4. Front cover; 5. Rear cover; 6. Rear cover; 7. VDO sensor; 8. Signal gear; 11. Grounding ring body; 9. Grounding ring bracket; 10. Junction box; 91. Bracket mounting hole; 92. Avoidance groove; 93. Grounding ring mounting hole; 81. Optical axis section; 82. Gear section; 83. Tooth; 61. Mounting boss. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described in detail below in conjunction with 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 protection scope of the present invention. Example 1

[0026] See Figures 1-2 and Figure 4-6 As shown, an integrated motor structure with a VDO sensor includes a stator assembly, a rotor assembly, a housing, a front cover, a rear cover, a rear cover, a VDO sensor, a signal gear, a grounding ring body and a grounding ring bracket;

[0027] A stator assembly and a rotor assembly are arranged in the casing, and a front end cover and a rear end cover are fixedly installed at both ends of the casing respectively. A junction box is fixedly installed on the front end cover, and a rear cover is fixedly installed on the rear end cover. The rear cover is arranged at one end of the rotor assembly, and a mounting boss formed by bending the rear cover body toward the center of the rear cover is fixedly arranged in the rear cover. A threaded hole is fixedly arranged at the center of the mounting boss, and a VDO sensor is fixedly installed in the threaded hole. The VDO sensor is mounted on one side of the signal gear.

[0028] A rear cover plate is also fixedly installed on the rear cover, a grounding ring bracket is fixedly installed inside the rear cover, bracket mounting holes are fixedly opened at both ends of the grounding ring bracket, a avoidance groove is fixedly opened at the center of the grounding ring bracket, and grounding ring mounting holes are fixedly opened on both sides of the avoidance groove.

[0029] A grounding ring body is fixedly mounted on the grounding ring bracket, one end of the rotor assembly passes through the rear end cover and extends into the rear cover, and one end of the rotor assembly placed in the rear cover is fixedly connected with a signal gear.

[0030] The signal gear includes an optical axis section and a gear section. The optical axis section is provided with an inner step to cooperate with the tail end of the rotating shaft in the rotor assembly. The outer ring surface of the optical axis section is slidably connected to the grounding ring body. The outer ring surface of the gear section is evenly distributed on the circumference with a tooth portion formed by a plurality of teeth.

[0031] A carbon brush is fixedly mounted on the grounding ring body, and the carbon brush is in sliding contact with the outer ring surface of the signal gear.

[0032] The number of gears in the toothed portion is 6-8. Example 2

[0033] Most of the technical features of this embodiment are the same as those of the above-mentioned embodiment 1, and the only difference is that the boss is formed by an integrally formed convex block provided on the rear cover.

[0034] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. An integrated motor structure with a VDO sensor, comprising a stator assembly, a rotor assembly, a housing, a front cover, a rear cover, a rear cover, a VDO sensor, a signal gear, a grounding ring body and a grounding ring bracket, wherein the stator assembly and the rotor assembly are arranged in the housing, and characterized in that: A front end cover and a rear end cover are fixedly installed on both ends of the casing respectively, a junction box is fixedly installed on the front end cover, a rear cover is fixedly installed on the rear end cover, a VDO sensor is fixedly installed on the rear cover, a rear cover plate is also fixedly installed on the rear cover, a grounding ring bracket is fixedly installed in the rear cover, a grounding ring body is fixedly installed on the grounding ring bracket, one end of the rotor assembly extends through the rear end cover into the rear cover, and one end of the rotor assembly placed in the rear cover is fixedly connected to a signal gear, and the rear cover is provided at one end of the rotor assembly.

2. The integrated motor structure with a VDO sensor according to claim 1, characterized in that: The signal gear includes an optical axis section and a gear section. The optical axis section is provided with an inner step to cooperate with the tail end of the rotating shaft in the rotor assembly. The outer ring surface of the optical axis section is slidably connected to the grounding ring body. The outer ring surface of the gear section is evenly distributed on the circumference with a tooth portion formed by a plurality of teeth.

3. The integrated motor structure with a VDO sensor according to claim 1, characterized in that: A mounting boss is fixedly provided in the rear cover, a threaded hole is fixedly provided at the center of the mounting boss, a VDO sensor is fixedly installed in the threaded hole, and the VDO sensor is mounted on one side of the signal gear.

4. The integrated motor structure with a VDO sensor according to claim 1, characterized in that: A carbon brush is fixedly mounted on the grounding ring body, and the carbon brush is in sliding contact with the outer ring surface of the signal gear.

5. The integrated motor structure with a VDO sensor according to claim 1, characterized in that: Bracket mounting holes are fixedly provided at both ends of the grounding ring bracket, a position avoidance groove is fixedly provided at the center of the grounding ring bracket, and grounding ring mounting holes are fixedly provided at both sides of the position avoidance groove.

6. The integrated motor structure with a VDO sensor according to claim 2, characterized in that: The number of gears in the toothed portion is 6-8.

7. The integrated motor structure with a VDO sensor according to claim 3, characterized in that: The mounting boss is formed by extending and bending the rear cover toward the inner ring of the rear cover.

8. The integrated motor structure with a VDO sensor according to claim 3, characterized in that: The boss is formed by an integrally formed convex block provided on the rear cover.

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