Electromagnetic brake of flat wire winding
By adopting the design of flat coils and dislocation alternating direction windings in the electromagnetic brakes, the low filling rate and low power output problems caused by coil gaps in the prior art are solved, and higher power density and more efficient performance are achieved.
Patent Information
- Application Number
- CN202421926844.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-09
AI Technical Summary
In existing electromagnetic brakes, when the copper cylindrical coil is wound outside the iron core, the gap between the turns will not be fully utilized, which reduces the compactness of the winding and the wire filling rate, thereby limiting the power output.
Flat coils are used instead of copper cylindrical coils, dislocated alternate direction windings, and connected through copper contacts to form a more compact structure to improve the filling rate of flat coils and the power density of magnetic poles.
At the same size, flat wire winding electromagnetic brakes can output more power and provide more efficient performance, reducing the impact of resistance, inductance and capacitance.
Smart Images
Figure CN222963228U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnetic brakes, in particular to an electromagnetic brake with a flat wire winding. Background Art
[0002] An electromagnetic brake is a brake that uses electromagnetic effects to achieve braking; an electromagnetic brake is an ideal automatic actuator in modern industry and mainly plays roles such as transmitting power and controlling motion in a mechanical transmission system; it has advantages such as a compact structure, simple operation, sensitive response, long service life, reliable use, and easy implementation of remote control;
[0003] An electromagnetic brake includes a core component, and the core component is generally assembled by an iron core and a coil wound around the outside of the iron core; in related technologies, the coil is mostly composed of copper cylindrical wires, which are wound around the outside of the iron core; when the copper cylindrical wires are wound around the outside of the iron core, there are gaps between the turns, so that the space of the winding groove cannot be filled and the slot position cannot be fully utilized, thereby reducing the compactness of the winding and the wire filling rate, and thus higher power output cannot be achieved;
[0004] Aiming at the problems in the above background art, the utility model aims to provide an electromagnetic brake with a flat wire winding. Summary of the Utility Model
[0005] The purpose of the utility model is to provide an electromagnetic brake with a flat wire winding to solve the problems raised in the above background art.
[0006] To achieve the above purpose, the utility model provides the following technical solutions:
[0007] An electromagnetic brake with a flat wire winding, the electromagnetic brake with a flat wire winding includes:
[0008] A brake body, on one side of the brake body, a driving wheel is movably installed, and a driving shaft is provided at the axial center position of the driving wheel; an electromagnetic braking component for generating an electromagnetic field after being powered on to stop braking the rotating driving wheel is arranged inside the brake body;
[0009] The electromagnetic braking component includes magnetic poles and a yoke, the yoke is movably installed inside the brake body, and one end of the yoke is in pressing contact with one side of the driving wheel; the magnetic poles include an iron core and a flat coil, and the flat coil is wound around the outside of the iron core.
[0010] As a further scheme of the utility model: winding posts are annularly and spacedly arranged and installed on the outside of the iron core, a wire groove is formed between adjacent winding posts, and the flat coil is inserted inside the winding posts.
[0011] As a further solution of the present utility model: the flat coil is in a mountain shape, and cavities are symmetrically arranged inside the flat coil. At the same time, a copper contact is also provided on one side of the flat coil.
[0012] Compared with the prior art, the beneficial effects of the present utility model are:
[0013] The electromagnetic brake with the flat wire winding has the following advantages compared with the current electromagnetic brake:
[0014] It replaces the original copper cylindrical coil with the provided flat coil wound around the outside of the iron core, and it is a misaligned and alternating direction winding. Compared with the copper cylindrical coil, the flat coil winding in the alternating direction is connected by welding at the copper contact position. In the same space volume of the wire groove, more flat coils can be accommodated, improving the filling rate of the flat coils; ultimately, it also improves the power density of the magnetic poles, enabling it to output greater power under the same size;
[0015] In addition, the flat coils are connected through copper contacts, forming a more compact structure, which helps to reduce the influence of resistance, inductance, and capacitance. The flat wire winding enables the electromagnetic brake to have a higher power output under the same volume and also provides more efficient performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model.
[0017] Figure 1 It is a side view of an electromagnetic brake with a flat wire winding according to an embodiment of the present utility model.
[0018] Figure 2 It is a schematic installation diagram of the coil and the iron core of an electromagnetic brake with a flat wire winding according to an embodiment of the present utility model.
[0019] Figure 3 It is a schematic diagram of the coil structure of an electromagnetic brake with a flat wire winding according to an embodiment of the present utility model.
[0020] Figure 4 It is a schematic installation diagram of the coil of an electromagnetic brake with a flat wire winding according to an embodiment of the present utility model.
[0021] Figure 5 It is a schematic installation diagram of the coil and the iron core of an electromagnetic brake in the prior art.
[0022] Figure 6 It is a side view of the coil and the iron core of an electromagnetic brake in the prior art.
[0023] In the figure: 1 - drive shaft, 2 - drive wheel, 3 - yoke, 4 - brake body, 5 - flat coil, 6 - iron core, 7 - magnetic pole, 8 - winding post, 9 - wire groove, 10 - copper contact, 11 - cavity, 12 - copper cylindrical coil. Detailed implementation
[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0025] Embodiment
[0026] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 A flat wire winding electromagnetic brake provided in an embodiment of the present utility model includes:
[0027] A brake body 4, on one side of which a drive wheel 2 is movably installed, and a drive shaft 1 is provided at the axial center position of the drive wheel 2; when the drive shaft 1 rotates to output kinetic energy, it will drive the drive wheel 2 movably installed on one side of the brake body 4 to rotate; an electromagnetic braking component is provided inside the brake body 4, and after the electromagnetic braking component is powered on, an electromagnetic field is generated to stop the rotation of the drive wheel 2.
[0028] Among them, the electromagnetic braking component includes a magnetic pole 7 and a yoke 3. The yoke 3 is movably installed inside the brake body 4, and one end of the yoke 3 is in pressing contact with one side of the drive wheel 2; the magnetic pole 7 includes an iron core 6 and a flat coil 5, and the flat coil 5 is wound around the outside of the iron core 6.
[0029] In the embodiment of the present utility model, when using the flat wire winding electromagnetic brake, for example, before the electromagnetic braking component is powered on, the set drive wheel 2 is under the pressure of the yoke 3, causing braking on the drive shaft 1 at the axial center position of the drive wheel 2.
[0030] When the flat wire winding electromagnetic brake powers on the electromagnetic braking component, the flat coil 5 located outside the iron core 6 generates an electromagnetic field after being powered on, which is used to generate an adsorption force on the yoke 3, thereby causing the yoke 3 to slide and displace, disengaging the extrusion on one side position of the drive wheel 2, enabling the drive wheel 2 to lose braking, and then driving the drive shaft 1 at the axial center position of the drive wheel 2 to continue rotating.
[0031] The flat coil 5 with a special structural design further improves the power density of the entire electromagnetic braking component, enabling it to output greater power under the same size. Secondly, through the winding connection of the flat coil 5, a more compact structure is formed, which helps to reduce the influence of resistance, inductance, and capacitance and improve the efficiency of the entire magnetic pole 7.
[0032] Please refer to Figure 2 、 Figure 3 and Figure 4 In an embodiment of the present invention, around the outer side of the iron core 6, winding posts 8 are arranged in an annular and spaced manner, and a wire groove 9 is formed between adjacent winding posts 8. A flat coil 5 is inserted inside the winding post 8.
[0033] Specifically, the flat coil 5 is in a mountain shape. A cavity 11 is symmetrically formed inside the flat coil 5, and a copper contact 10 is also provided on one side of the flat coil 5.
[0034] In an embodiment of the present invention, when assembling the flat coil 5 inside the wire groove 9 formed on the outer side of the iron core 6, two windings with different reverse directions are alternately installed on the outer side of the iron core 6, so as to tightly fill the flat coil 5 inside the formed wire groove 9. The alternating insertion method can not only improve the filling rate of the flat coil 5, but also reduce the electromagnetic noise and vibration of the entire electromagnetic braking component.
[0035] At the same time, filling the flat coil 5 in an alternating direction can effectively reduce the generation of hot spots of the flat coil 5 and improve the heat dissipation performance of the entire electromagnetic brake.
[0036] In addition, the flat coils 5 with alternating directions are welded and connected at the position of the copper contact 10. Under the same spatial volume of the wire groove 9, more flat coils 5 can be accommodated, improving the filling rate of the flat coils 5. Finally, the power density of the magnetic pole 7 is also improved, enabling it to output greater power under the same size. Moreover, the flat coils 5 are connected through the copper contact 10, forming a more compact structure, which helps to reduce the influence of resistance, inductance, and capacitance and improve the efficiency of the entire electromagnetic brake.
[0037] Please refer to Figure 5 and Figure 6 for the installation schematic diagram of the coil and the iron core of the electromagnetic brake in the prior art. The copper cylindrical coil 12 is wound around the winding posts 8 arranged at intervals on the outer side of the iron core 6.
[0038] When the copper cylindrical coil 12 is wound outside the winding post 8, there are gaps between the turns, inevitably occupying space, reducing the filling rate of the copper cylindrical coil 12, and outputting less power under the same size.
[0039] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model may be understood according to specific circumstances.
[0040] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An electromagnetic brake with a flat wire winding, comprising: A brake body (4), a driving wheel (2) is movably mounted on one side of the brake body (4), and a driving shaft (1) is provided at the axial center of the driving wheel (2); the characteristics are: The brake body (4) is provided with an electromagnetic brake assembly inside thereof, which generates an electromagnetic field after being energized and is used to stop braking the rotating driving wheel (2); The electromagnetic brake assembly comprises a magnetic pole (7) and a yoke (3), wherein the yoke (3) is movably mounted inside a brake body (4), and one end of the yoke (3) is in extrusion contact with one side of a driving wheel (2); the magnetic pole (7) comprises an iron core (6) and a flat coil (5), and the flat coil (5) is wound around the outside of the iron core (6).
2. The electromagnetic brake of the flat wire winding according to claim 1, characterized in that: Winding poles (8) are installed in annularly spaced arrangement on the outside of the iron core (6), wire grooves (9) are formed between adjacent winding poles (8), and flat coils (5) are inserted inside the winding poles (8).
3. The electromagnetic brake of the flat wire winding according to claim 2, characterized in that: The flat coil (5) is in a mountain shape, and cavities (11) are symmetrically opened inside the flat coil (5). A copper contact (10) is also provided on one side of the flat coil (5).