Bidirectional electromagnetic driving structure

Abstract

The utility model discloses a bidirectional electromagnetic driving structure which comprises a shaft body, a first electromagnetic coil is arranged on the shaft body, a second electromagnetic coil is arranged on the inner side of the first electromagnetic coil, the first electromagnetic coil and the second electromagnetic coil are matched with each other, a sliding sleeve is arranged in the first electromagnetic coil, and the sliding sleeve is sleeved on the sliding sleeve. The sliding sleeve is fixedly matched with the first electromagnetic coil and the second electromagnetic coil and is in sliding fit with the shaft body, a first working face is arranged on the opposite face of the first electromagnetic coil and the second electromagnetic coil, and a second working face is arranged on the opposite face of the second electromagnetic coil and the first electromagnetic coil. The electromagnetic coil is used for replacing an original push ring structure, two-way movement is achieved, meanwhile, parts are simplified, and the occupied axial space is smaller.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile design and manufacturing, and more particularly to a bidirectional electromagnetic drive structure. Background Art

[0002] With the advancement of new technologies, new energy vehicles are taking up an increasingly larger share of the market in the automotive industry. The transmission is an important structure of a car, used to control the speed of the car. The transmission of new energy vehicles is mostly controlled by electromagnetic structures.

[0003] The existing electromagnetic structure consists of an electromagnetic coil and a push ring. When the electromagnetic coil is energized, the push ring moves axially under the action of the electromagnetic force. Because the magnetic field circuit remains unchanged, the push ring can only move in one direction. To achieve movement in two directions, a mirror image of the electromagnetic coil and push ring structure must be installed in the axial direction, resulting in a large number of parts and occupying a large amount of axial space. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the problems existing in the prior art, the present invention provides a bidirectional electromagnetic drive structure to solve the technical problem mentioned in the background art that the electromagnetic structure has numerous parts and occupies a large space.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bidirectional electromagnetic drive structure, including a shaft body, a first electromagnetic coil is provided on the shaft body, a second electromagnetic coil is provided on the inner side of the first electromagnetic coil, the first electromagnetic coil and the second electromagnetic coil are gap-fitted, a sliding sleeve is provided in the first electromagnetic coil, the first electromagnetic coil is independently arranged, the sliding sleeve is fixedly fitted with the second electromagnetic coil and slidably fitted with the shaft body, a first working surface is provided on the opposing surface of the first electromagnetic coil and the second electromagnetic coil, and a second working surface is provided on the opposing surface of the second electromagnetic coil and the first electromagnetic coil.

[0008] The present invention is further configured such that a first coupling plate and a second coupling plate are respectively provided at both ends of the sliding sleeve.

[0009] The utility model is further configured such that a limiting groove is provided on the inner side of the sliding sleeve, a column groove is provided on the shaft body, a plunger is provided in the column groove for sliding connection, and a return spring is provided between the plunger and the inner wall of the column groove.

[0010] (3) Beneficial effects

[0011] Compared with the prior art, the present invention provides a bidirectional electromagnetic drive structure with the following features:

[0012] Beneficial effects:

[0013] 1. By arranging the cooperation of the first electromagnetic coil and the second electromagnetic coil, and connecting and fixing them through a sliding sleeve, and by energizing different coils to generate electromagnetic forces in different directions, the non-fixed electromagnetic coil is driven to move in two directions.

[0014] 2. By using one electromagnetic coil to replace the original push ring structure, compared with the solution of using only two coils and a push ring, the cooperation of the two electromagnetic coils can achieve movement in two directions while using fewer parts and lowering the cost. In addition, the two electromagnetic coils are arranged in the radial direction, which is more compact in structure and occupies less space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front structure of a bidirectional electromagnetic drive structure in the present utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the first electromagnetic coil, the second electromagnetic coil and the sliding sleeve after separation in the present invention;

[0017] Figure 3 This is a schematic diagram of the front structure of the first electromagnetic coil in the present utility model;

[0018] Figure 4 This is a schematic diagram of the front structure of the second electromagnetic coil in the present utility model.

[0019] In the figure: 1. shaft; 2. first electromagnetic coil; 3. second electromagnetic coil; 4. sliding sleeve; 5. first working surface; 6. second working surface; 7. first coupling disk; 8. second coupling disk; 9. limiting groove; 10. column groove; 11. plunger; 12. return spring. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0022] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0023] See also Figure 1-4 A bidirectional electromagnetic drive structure includes a shaft body 1, a first electromagnetic coil 2 is provided on the shaft body 1, a second electromagnetic coil 3 is provided on the inner side of the first electromagnetic coil 2, the first electromagnetic coil 2 and the second electromagnetic coil 3 are clearance-matched, a sliding sleeve 4 is provided in the first electromagnetic coil 2, the sliding sleeve 4 is fixedly matched with the second electromagnetic coil 3 and slidably matched with the shaft body 1, a first working surface 5 is provided on the opposite surface of the first electromagnetic coil 2 and the second electromagnetic coil 3, and a second working surface 6 is provided on the opposite surface of the second electromagnetic coil 3 and the first electromagnetic coil 2.

[0024] In this embodiment, when working, power is supplied to the first electromagnetic coil 2 or the second electromagnetic coil 3, and through the cooperation of the first working surface 5 and the second working surface 6, opposite electromagnetic forces are generated under the action of the magnetic field. Under the action of the electromagnetic force, power is provided, and the first electromagnetic coil 2 moves synchronously with the second electromagnetic coil 3 through the cooperation of the sliding sleeve 4. The first electromagnetic coil 2, the second electromagnetic coil 3 and the sliding sleeve 4 move under the influence of the magnetic force, so that the electromagnetic structure moves along the shaft 1.

[0025] See also Figure 1 and Figure 4 As a further embodiment of the sliding sleeve 4 , a first coupling disc 7 and a second coupling disc 8 are respectively provided at both ends of the sliding sleeve 4 .

[0026] Specifically, when the sliding sleeve 4 moves, it moves axially along with the electromagnetic structure.

[0027] Please refer to Figures 1-4 As a further implementation of the sliding sleeve 4: a limiting groove 9 is opened on the inner side of the sliding sleeve 4, a column groove 10 is opened on the shaft body 1, a plunger 11 is slidingly connected in the column groove 10, and a return spring 12 is provided between the plunger 11 and the inner wall of the column groove 10.

[0028] Specifically, when the first electromagnetic coil 2 and the second electromagnetic coil 3 are not energized, the sliding sleeve 4 stops on the shaft 1, so that the limiting groove 9 is aligned with the column groove 10. Under the thrust of the return spring 12, the front end of the plunger 11 is inserted into the limiting groove 9, locking the sliding sleeve 4 and limiting the movement of the sliding sleeve 4.

[0029] In summary, when the overall device is in use (or running):

[0030] When the device is used, it is assembled, and the first electromagnetic coil 2, the second electromagnetic coil 3 and the sliding sleeve 4 are all sleeved on the shaft 1, and the first electromagnetic coil 2 and the second electromagnetic coil 3 are combined together, and the second electromagnetic coil 3 cooperates with the first electromagnetic coil 2 to form a first working surface 5 and a second working surface 6, and cooperates with each other, and the sliding sleeve 4 is inserted between the second electromagnetic coil 3, and the upper end of the sliding sleeve 4 presses the first electromagnetic coil 2 and cooperates with the first electromagnetic coil 2, and the lower end of the sliding sleeve 4 can be cooperated with the second electromagnetic coil 3 by interference fit, or can be connected by glue, or limited by a snap ring, so that the second electromagnetic coil 3 and the sliding sleeve 4 are fixed together, so that the first electromagnetic coil 2, the second electromagnetic coil 3 and the sliding sleeve 4 are fixed as a whole, and the coupling disk adopts a toothed disk or other structure, and the first coupling disk 7 is installed at the lower end of the sliding sleeve 4, and the second coupling disk 8 is installed at the upper end of the sliding sleeve 4. When the sliding sleeve 4 moves, they move together.

[0031] When the battery-driven structure is working, when the first electromagnetic coil 2 is energized and the second electromagnetic coil 3 is de-energized, the magnetic field formed is generated around the first electromagnetic coil 2. At this time, the first working surface 5 and the second working surface 6 both have magnetic fields passing through them, and both have magnetic forces generated, and the directions of the two are opposite. Because the magnetic field mainly forms a complete closed loop through the first working surface 5, the electromagnetic force generated by the first working surface 5 is greater than the electromagnetic force generated by the second working surface 6. Under the action of the electromagnetic force, the first electromagnetic coil 2 and the second electromagnetic coil 3 will move downward axially, and through the movement of the sliding sleeve 4, push the first coupling plate 7 to move downward and couple. When the second electromagnetic When the coil 3 is energized and the first electromagnetic coil 2 is de-energized, a magnetic field is formed around the second electromagnetic coil 3. The first working surface 5 and the second working surface 6 cooperate with each other. Under the action of the magnetic field, electromagnetic forces in opposite directions are generated. Because the magnetic field mainly forms a complete closed loop through the second working surface 6, the electromagnetic force generated by the second working surface 6 is greater than the electromagnetic force generated by the first working surface 5. Under the action of the electromagnetic force, the first electromagnetic coil 2 and the second electromagnetic coil 3 will move axially upward, and the movement direction is opposite to the movement direction when the first electromagnetic coil 2 is energized. The sliding sleeve 4 moves in the opposite direction, pushing the second coupling disk 8 to move upward and couple.

[0032] When the first electromagnetic coil 2 and the second electromagnetic coil 3 are not energized, the first coupling disc 7 and the second coupling disc 8 are controlled by the return structure of the equipment, such as the elastic elements such as coil springs or wave springs, so that the first electromagnetic coil 2, the second electromagnetic coil 3 and the sliding sleeve 4 return to the middle position on the shaft body 1, so that the limiting groove 9 is aligned with the column groove 10, and under the thrust of the return spring 12, the front end of the plunger 11 is inserted into the limiting groove 9, the sliding sleeve 4 is locked, and the movement of the sliding sleeve 4 is restricted, so that the electromagnetic mechanism remains stable when not in use, and the plunger 11 and the limiting groove 9 are both arc-surface structures. When the sliding sleeve 4 needs to move, sufficient force is provided to separate the plunger 11 from the limiting groove 9 and retract it into the column groove 10. In addition, the limiting groove 9 can also be set to multiple grooves, corresponding to different gear positions.

[0033] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A bidirectional electromagnetic drive structure, comprising a shaft (1), characterized in that: The shaft (1) is provided with a first electromagnetic coil (2), a second electromagnetic coil (3) is provided inside the first electromagnetic coil (2), the first electromagnetic coil (2) and the second electromagnetic coil (3) are clearance-matched, a sliding sleeve (4) is provided in the first electromagnetic coil (2), the sliding sleeve (4) is fixedly matched with the second electromagnetic coil (3) and is slidingly matched with the shaft (1), a first working surface (5) is provided on the opposite surface of the first electromagnetic coil (2) and the second electromagnetic coil (3), and a second working surface (6) is provided on the opposite surface of the second electromagnetic coil (3) and the first electromagnetic coil (2).

2. A bidirectional electromagnetic drive structure according to claim 1, characterized in that: The sliding sleeve (4) is provided with a first coupling disc (7) and a second coupling disc (8) at both ends thereof.

3. The bidirectional electromagnetic drive structure according to claim 1, characterized in that: A limiting groove (9) is provided on the inner side of the sliding sleeve (4), a column groove (10) is provided on the shaft body (1), a plunger (11) is provided in a sliding connection in the column groove (10), and a return spring (12) is provided between the plunger (11) and the inner wall of the column groove (10).

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