Electromagnetic coil structure with function of locking differential assembly
By designing an electromagnetic coil structure with locking differential assembly function, the problem that the existing differential is prone to slip on bad road surfaces is solved, ensuring stable output driving force of the output shaft in the slip state, and improving the vehicle's ability to pass through.
Patent Information
- Application Number
- CN202421945166.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-08-12
AI Technical Summary
When existing bevel gear differentials drive on bad roads such as mud, ice and snow, it is easy to slip due to the reduced adhesion of one side of the drive wheels in contact with the road surface, resulting in a reduced car's ability to pass.
A solenoid coil structure with locking differential assembly function is designed, including a housing, an actuator and a coil assembly. When the car is detected to be in a slippery state, the solenoid valve is activated, and the actuator is meshed with the half-axle gear of the differential through the magnetic field to fix its position to ensure that the output shaft can stably output the driving force.
When the car is in a slipping state, the electromagnetic coil structure of the locking differential is ensured that the half-axle output wheel can obtain a fixed driving force, drive the vehicle out of the slipping road surface, and improve the car's ability to pass on the bad road surface.
Smart Images
Figure CN222836198U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of differentials, in particular to an electromagnetic coil structure with the function of locking a differential assembly. Background Art
[0002] The car differential is a mechanism that enables the left and right (or front and rear) drive wheels to rotate at different speeds when the car needs to turn. It is mainly composed of left and right half-shaft gears, two planetary gears and a gear rack. Its function is to make the left and right wheels roll at different speeds when the car turns or drives on uneven roads, that is, to ensure that the drive wheels on both sides perform pure rolling motion.
[0003] The ordinary bevel gear differential has the disadvantage of evenly distributing torque to the left and right wheels, which causes the car to slip (spin) on bad roads (muddy, icy and snowy roads, etc.) because one driving wheel contacts the muddy, icy and snowy road surface, while the other driving wheel on a good road surface remains stationary, reducing the car's ability to pass. This is because the adhesion between the driving wheel in contact with the muddy, icy and snowy road surface and the road surface is reduced, and the road surface has a very small reaction torque on the half-axle. Combined with the symmetrical bevel gear differential's characteristic of even torque distribution, the torque obtained by the driving wheel on a good road surface can only be equal to the torque of the driving wheel on a bad road surface. Therefore, the combined force of the two is not enough to overcome the driving resistance, and the car stops.
[0004] Therefore, in view of this, the shortcomings of the existing structure are studied and improved, and an electromagnetic coil structure with the function of locking the differential assembly is proposed. Utility Model Content
[0005] The purpose of the utility model is to provide an electromagnetic coil structure with a locking differential assembly function to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electromagnetic coil structure with a locking differential assembly function, comprising an outer cover, an actuator is arranged on one side of the outer cover, and the actuator comprises an inner ring and an outer ring, the inner ring is nested inside the outer ring, and an interference fit is adopted between the inner ring and the outer ring, the inner ring is made of aluminum, and the outer ring is made of magnetic conductive material.
[0007] Furthermore, a wiring harness assembly is arranged on the other side of the outer cover, and the wiring harness assembly includes a rubber plug, a positioning block and a wire clip. A positioning block is arranged on the side of the rubber plug, and a wire clip is arranged on the side of the positioning block.
[0008] Furthermore, the wiring harness assembly also includes a bellows and a hook and loop fastener. The side of the wire clip is provided with a bellows, and the middle of the bellows is provided with two hooks and loop fasteners.
[0009] Furthermore, the wiring harness assembly also includes a wire and a plug connector. The wire extends inside the corrugated tube, and one end of the wire is connected to the plug connector.
[0010] Furthermore, a coil assembly is arranged outside the actuator, and the coil assembly includes a connecting coil and a potting material. The wiring harness assembly passes through the outer cover and is welded and fixed to the connecting coil, and a potting material of epoxy resin material is arranged at the end of the connecting coil.
[0011] Furthermore, the coil assembly also includes a rear cover, one end of the potting material is blocked by the rear cover at the rear end of the outer cover, and the other end of the potting material is blocked by a rubber plug at the front end of the outer cover.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] 1. The utility model adds a locking electromagnetic coil to the basic structure of an ordinary differential. When it is detected that the car is in a slipping state, the electromagnetic valve is started to work, so that a half-axle gear at the output end of the differential is locked and fixed together with the differential housing, thereby ensuring that the half-axle output wheel can obtain a fixed driving force, driving the vehicle to drive out of the slippery road surface. The structure is simple and convenient for improving the structure of the differential assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model device;
[0015] Figure 2 This is a schematic diagram of the structure of the actuator of the utility model;
[0016] Figure 3 This is a schematic diagram of the wiring harness assembly structure of the utility model;
[0017] Figure 4 This is a schematic diagram of the coil assembly structure of the utility model.
[0018] In the figure: 1. Outer cover; 2. Coil assembly; 3. Connecting coil; 4. Filling material; 5. Back cover; 6. Actuator; 7. Inner ring; 8. Outer ring; 9. Wiring assembly; 10. Rubber plug; 11. Positioning block; 12. Wire clip; 13. Bellows; 14. Aircraft buckle; 15. Wire; 16. Plug connector. DETAILED DESCRIPTION
[0019] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0020] like Figures 1 to 4As shown, an electromagnetic coil structure with a locking differential assembly function includes an outer cover 1, an actuator 6 is arranged on one side of the outer cover 1, and the actuator 6 includes an inner ring 7 and an outer ring 8, the inner ring 7 is nested inside the outer ring 8, and the inner ring 7 and the outer ring 8 are fitted in an interference fit manner, the inner ring 7 is made of aluminum, and the outer ring 8 is made of a magnetic conductive material, a wiring harness assembly 9 is arranged on the other side of the outer cover 1, the wiring harness assembly 9 includes a rubber plug 10, a positioning block 11 and a wire clip 12, a positioning block 11 is arranged on the side of the rubber plug 10, and a wire clip 12 is arranged on the side of the positioning block 11, the wiring harness assembly 9 also includes a bellows 13 and an airplane buckle 14, a bellows 13 is arranged on the side of the wire clip 12, and two airplane buckles 14 are arranged in the middle of the bellows 13, the wiring harness assembly 9 also includes a wire 15 and a plug connector 16, the wire 15 extends from the inside of the bellows 13, and one end of the wire 15 is connected to the plug connector Head 16, a coil assembly 2 is arranged outside the actuator 6, and the coil assembly 2 includes a connecting coil 3 and a potting material 4. The wiring harness assembly 9 passes through the outer cover 1 and is welded and fixed to the connecting coil 3, and a potting material 4 made of epoxy resin material is arranged at the end of the connecting coil 3. When the vehicle slips when driving on a slippery road and cannot drive, the vehicle detects that the wheel is slipping, and after sending a signal to the vehicle, the system sends a start signal to the coil assembly 2. After the connecting coil 3 is energized, a magnetic field is generated. The actuator 6 moves axially under the action of the magnetic field and meshes with the half-axle gear in the differential assembly, fixing the half-axle gear of the differential output shaft with the differential housing, so that the output driving force can be stably output to the output shaft. The coil assembly 2 also includes a rear cover 5, one end of the potting material 4 is blocked by the rear cover 5 at the rear end of the outer cover 1, and the other end of the potting material 4 is blocked by the rubber plug 10 at the front end of the outer cover 1.
[0021] Working principle: When using the electromagnetic coil structure with the function of locking the differential assembly, when the vehicle slips on a slippery road and cannot drive, the vehicle detects that the wheel is slipping and sends a signal to the vehicle. The system then sends a start signal to the coil assembly 2, and the connecting coil 3 is energized to generate a magnetic field. The actuator 6 moves axially under the action of the magnetic field and meshes with the half-shaft gears in the differential assembly, fixing the half-shaft gears of the differential output shaft and the differential housing together, thereby being able to stably output driving force to the output shaft.
[0022] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.
Claims
1. An electromagnetic coil structure with a locking differential assembly function, comprising an outer cover (1), characterized in that: An actuator (6) is provided on one side of the outer cover (1), and the actuator (6) comprises an inner ring (7) and an outer ring (8), wherein the inner ring (7) is nested inside the outer ring (8), and an interference fit is adopted between the inner ring (7) and the outer ring (8), wherein the inner ring (7) is made of aluminum, and the outer ring (8) is made of a magnetic conductive material.
2. The electromagnetic coil structure with a locking differential assembly function according to claim 1, characterized in that: A wiring harness assembly (9) is provided on the other side of the outer cover (1), and the wiring harness assembly (9) comprises a rubber plug (10), a positioning block (11) and a wire clip (12). The positioning block (11) is provided on the side of the rubber plug (10), and the wire clip (12) is provided on the side of the positioning block (11).
3. The electromagnetic coil structure with a locking differential assembly function according to claim 2, characterized in that: The wiring harness assembly (9) further comprises a corrugated tube (13) and an airplane buckle (14); the corrugated tube (13) is provided on the side of the line clamp (12), and two airplane buckles (14) are provided in the middle of the corrugated tube (13).
4. The electromagnetic coil structure with a locking differential assembly function according to claim 3, characterized in that: The wiring harness assembly (9) further comprises a wire (15) and a plug connector (16); the wire (15) extends inside the corrugated tube (13), and one end of the wire (15) is connected to the plug connector (16).
5. The electromagnetic coil structure with a locking differential assembly function according to claim 2, characterized in that: A coil assembly (2) is provided outside the actuator (6), and the coil assembly (2) includes a connecting coil (3) and a filler (4). The wiring harness assembly (9) passes through the outer cover (1) and is welded to the connecting coil (3), and a filler (4) made of epoxy resin material is provided at the end of the connecting coil (3).
6. The electromagnetic coil structure with a locking differential assembly function according to claim 5, characterized in that: The coil assembly (2) further includes a rear cover (5), one end of the filler (4) is blocked by the rear cover (5) at the rear end of the outer cover (1), and the other end of the filler (4) is blocked by a rubber plug (10) at the front end of the outer cover (1).