Electromagnetic clutch structure
By employing a coaxially arranged V-shaped groove and convex surface structure in the electromagnetic clutch, the problem of limited tension and stroke on small-volume equipment is solved, achieving stable electromagnetic tension and improved automation, while reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN SOUTHERN DARE AUTOMOTIVE ELECTRONICS
- Filing Date
- 2025-03-12
- Publication Date
- 2026-07-24
AI Technical Summary
Existing electromagnetic clutches have limited pulling force and stroke in small-volume equipment, resulting in low automation, easy slippage, high cost, and limited functionality.
The first and second iron cores are coaxially arranged to form a V-shaped groove and a convex surface structure. The coil winding moves axially with the iron core within the winding space to form a closed magnetic circuit to generate a stable electromagnetic pull.
A large stroke and stable tension were achieved on a small-volume device, which improved the level of automation, prevented slippage, and reduced production costs.
Smart Images
Figure CN224550666U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clutch structure technology, and in particular to an electromagnetic clutch structure. Background Technology
[0002] Electromagnetic clutches are generally used to control the engagement and disengagement of a clutch by turning the power supply on and off the coil windings. When the coil windings are energized, a magnetic force is generated to attract the "armature" plate, and the clutch is engaged; when the coil windings are de-energized, the "armature" springs back. The clutch is disengaged and is typically used in high-frequency mechanical transmission systems, where the driven component can combine with or separate from the driving component when the moving parts are in operation.
[0003] If electromagnetic clutch technology is applied to the field of motors, the motor needs to output different torques for different applications. Therefore, the motor can be connected to different voltages by setting multiple sets of windings, thereby outputting different torques to meet different needs.
[0004] However, in related technologies, the arrangement of two independent windings in the motor leads to an increase in the size of the motor and also significantly increases the production cost of the motor.
[0005] At the same time, due to the current structural design of electromagnetic clutches, the travel and pulling force of electromagnetic clutches are limited under fixed size conditions. If the pulling force and travel of the clutch are to be increased, the volume of the clutch structure must be increased. If a larger clutch pulling force and travel can be achieved in a smaller volume device, it will be more convenient to use. Utility Model Content
[0006] The purpose of this application is to provide an electromagnetic clutch structure to solve the problems mentioned in the background art, such as low overall automation, easy slippage when pulling heavy objects, limited functionality, and poor performance.
[0007] To achieve the above objectives, this application provides the following technical solution: an electromagnetic clutch structure, comprising a first end cap, a second end cap, an insulating frame, and a coil winding. A first iron core is disposed on the first end cap, and a second iron core is disposed on the second end cap. A winding space is formed between the first iron core and the second iron core, and the insulating frame and the coil winding are disposed within the winding space. The first iron core and the second iron core are coaxially opposite to each other, and the first iron core and the second iron core can move relative to each other axially. The first iron core has a V-shaped groove, and the second iron core has a V-shaped convex surface. The V-shaped convex surface is inserted into the V-shaped groove, and there is a gap between the V-shaped convex surface and the V-shaped groove. The V-shaped convex surface and the V-shaped groove undergo axial displacement with the first iron core and the second iron core, respectively.
[0008] Preferably, the first iron core includes a first inner ring iron core and a first outer ring iron core, and the second iron core includes a second inner ring iron core and a second outer ring iron core; the first inner ring iron core, the first outer ring iron core, the second inner ring iron core, and the second outer ring iron core are coaxial.
[0009] Preferably, the included angle between the V-shaped groove and the V-shaped convex surface is between - degrees.
[0010] Preferably, the insulating frame and the coil winding are fixed within the winding space between the first inner ring core and the first outer ring core and move axially with the first inner ring core and the first outer ring core.
[0011] Preferably, the insulating frame and the coil winding are fixed within the winding space between the second inner ring core and the second outer ring core and move axially with the second inner ring core and the second outer ring core.
[0012] In summary, the technical effects and advantages of this utility model are as follows:
[0013] When this invention is used, the coil winding is energized to generate magnetic lines of force. The magnetic lines of force pass through the first outer ring iron core, the first end cap, the air gap between the first outer ring iron core and the second inner ring iron core, the second end cap and the second outer ring iron core to form a closed magnetic circuit. The electromagnetic force drives the air gap to gradually decrease, thereby generating electromagnetic tension. The specially shaped air gaps between the first inner ring iron core, the second inner ring iron core and the first outer ring iron core and the second outer ring iron core allow the magnetic shielding plate, the second iron core and the second end cap to form a large stroke in the vertical direction with little change in the air gap, thereby generating a stable tension. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a three-dimensional schematic diagram of the electromagnetic clutch in an embodiment of this application;
[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the electromagnetic clutch in an embodiment of this application;
[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the first end cap and the first iron core in an embodiment of this application;
[0018] Figure 4This is a schematic diagram of the cross-sectional structure of the second end cap and the second iron core in an embodiment of this application.
[0019] Figure Labels
[0020] 1. First end cap
[0021] 11 First Iron Core
[0022] 110 V-groove
[0023] 111 First Inner Ring Core
[0024] 112 First outer ring core
[0025] 2 Second end cap
[0026] 21 Second Iron Core
[0027] 210 V-shaped convex surface
[0028] 211 Second Inner Ring Core
[0029] 212 Second Outer Ring Core
[0030] 3 Insulation frame
[0031] 4-winding space
[0032] 5 magnetic shielding plates Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Example
[0035] like Figure 1 As shown, an electromagnetic clutch structure includes an electromagnetic clutch structure comprising a first end cover 1, a second end cover 2, an insulating frame 3, and a coil winding (not shown in the figure). A magnetic shielding plate 5 is connected to the periphery of the second end cover 2. A first iron core 11 is disposed on the first end cover 1, and a second iron core 21 is disposed on the second end cover 2. The first iron core 11 and the second iron core 21 are coaxially opposite to each other, and the first iron core 11 and the second iron core 21 can move relative to each other axially. The first iron core 11 includes a first inner ring iron core 111 and a first outer ring iron core 112, and the second iron core 21 includes a second inner ring iron core 211 and a second outer ring iron core 212. The first inner ring iron core 111, the first outer ring iron core 112, the second inner ring iron core 211, and the second outer ring iron core 212 are coaxial.
[0036] A winding space 4 is formed between the first inner ring core 111, the first outer ring core 112, the second inner ring core 211, and the second outer ring core 212. The insulating frame 3 and the coil winding are disposed in the winding space 4. The first inner ring core 111 and the first outer ring core 112 are respectively formed with V-shaped grooves 110, and the second inner ring core 211 and the second outer ring core 212 are formed with V-shaped convex surfaces 210. The V-shaped convex surfaces 210 are inserted into the V-shaped grooves 110, and there is a gap between the V-shaped convex surfaces 210 and the V-shaped grooves 110. The V-shaped convex surfaces 210 and the V-shaped grooves 110 are respectively axially displaced with the first core 11 and the second core 21.
[0037] With the above structure: the coil winding generates magnetic lines of force when energized; the magnetic lines of force form a closed magnetic circuit through the air gap between the first outer ring core 112, the first end cap 1, the first inner ring core 111, and the second inner ring core 211, the second end cap 2, and the second inner ring core 212; the electromagnetic force drives the air gap to gradually decrease, thereby generating electromagnetic tension; the specially shaped air gap between the first outer ring core 112, the second outer ring core 212, the first inner ring core 111, and the second inner ring core 211 allows the magnetic shielding plate 5, the second inner ring core 211, the second outer ring core 212, and the second end cap 2 to form a large stroke in the vertical direction, thereby generating a stable tension when the change in air gap is not large.
[0038] The included angle between the V-shaped groove 110 and the V-shaped convex surface 210 is preferably between 5 and 45 degrees. The larger the included angle, the shorter the clutch travel. In one case, the insulating frame 3 and the coil winding are fixed in the winding space 4 between the first inner ring core 111 and the first outer ring core 112, and move axially with the first inner ring core 111 and the first outer ring core 112. In another case, the insulating frame 3 and the coil winding can be fixed in the winding space 4 between the second inner ring core 211 and the second outer ring core 212, and move axially with the second inner ring core 211 and the second outer ring core 212.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An electromagnetic clutch structure, comprising a first end cap (1), a second end cap (2), an insulating frame (3), and a coil winding, characterized in that: The first end cap (1) is provided with a first iron core (11), and the second end cap (2) is provided with a second iron core (21). A winding space (4) is formed between the first iron core (11) and the second iron core (21), and the insulating frame (3) and the coil winding are disposed in the winding space (4); The first iron core (11) and the second iron core (21) are coaxially opposite each other, and the first iron core (11) and the second iron core (21) can move relative to each other axially; The first iron core (11) has a V-shaped groove (110) and the second iron core (21) has a V-shaped convex surface (210). The V-shaped convex surface (210) is inserted into the V-shaped groove (110) and there is a gap between the V-shaped convex surface (210) and the V-shaped groove (110). The V-shaped convex surface (210) and the V-shaped groove (110) undergo axial displacement with the first iron core (11) and the second iron core (21), respectively.
2. The electromagnetic clutch structure according to claim 1, characterized in that: The first iron core (11) includes a first inner ring iron core (111) and a first outer ring iron core (112), and the second iron core (21) includes a second inner ring iron core (211) and a second outer ring iron core (212); the first inner ring iron core (111), the first outer ring iron core (112), the second inner ring iron core (211), and the second outer ring iron core (212) are coaxial.
3. The electromagnetic clutch structure according to claim 1, characterized in that: The included angle between the V-shaped groove (110) and the V-shaped convex surface (210) is between 5 and 45 degrees.
4. The electromagnetic clutch structure according to claim 2, characterized in that: The insulating frame (3) and the coil winding are fixed in the winding space (4) between the first inner ring core (111) and the first outer ring core (112) and move axially with the first inner ring core (111) and the first outer ring core (112).
5. The electromagnetic clutch structure according to claim 2, characterized in that: The insulating frame (3) and the coil winding are fixed in the winding space (4) between the second inner ring core (211) and the second outer ring core (212) and move axially with the second inner ring core (211) and the second outer ring core (212).