Flexible conductor protection device for permanent magnet brake

Abstract

The utility model discloses a soft lead protection device for a permanent magnet brake, which comprises an insert, an insert support, a lead support and an insulator, one end of the lead support is mounted on a magnet yoke of the permanent magnet brake, a soft lead is mounted on the lead support, and the insert support is close to the lead support. One end of the insertion piece is installed on the insertion piece support and electrically connected with the other end of the flexible wire, the insertion piece support, the wire support, the part, located outside the magnet yoke, of the flexible wire and the part, close to the insertion piece support, of the insertion piece are all integrally wrapped by the insulator, and the other end of the insertion piece is arranged outside the insulator and used for being connected with a power source. According to the utility model, the lead support and the insertion sheet support are used for positioning the flexible lead and the insertion sheet respectively, and the insulator is used for integrally wrapping and fixing the lead support, the insertion sheet support, the flexible lead and the insertion sheet, so that the flexible lead is effectively fixed and protected, and the problems of winding, knotting, breaking and the like of the flexible lead and the interference of the flexible lead on the rotation of the rotor assembly are avoided; and the stability and the reliability are enhanced.

Description

Technical Field

[0001] This utility model relates to a partial structure of a permanent magnet brake, and more particularly to a flexible wire protection device for a permanent magnet brake. Background Technology

[0002] With the development of industrial technology, customers' requirements for permanent magnet brakes are no longer limited to basic performance; product reliability and stability have also become key characteristics for evaluation. Traditional permanent magnet brakes use flexible wires that are directly connected to the power supply via terminals. This direct connection poses risks such as tangling, knotting, and breakage, leading to brake failure. Consequently, the product's reliability and stability are insufficient, failing to meet customer requirements for brakes.

[0003] like Figure 1 As shown, in a traditional permanent magnet brake, the permanent magnet 2 is embedded in the cage 3. The iron core 1, permanent magnet 2, cage 3, and yoke 4 form the stator assembly. The coil 6 and flexible wire 5 are connected by tinning to form the coil assembly. The tail end of the flexible wire 5 is press-fitted with a terminal (not shown in the figure), and then a connector (not shown in the figure) is pressed in to connect to the power supply (not shown in the figure) to form a circuit. The armature 7, leaf spring 8, and flange 9 form the rotor assembly. A bearing 10 is installed between the iron core 1 and the flange 9. During operation, the magnetic field generated by the permanent magnet 2 attracts the rotor assembly, thereby causing the rotor assembly and stator assembly to fit tightly together, forming a whole, which serves to brake the rotor assembly. When the flexible wire 5 is energized, the coil 6 generates a magnetic field, which cancels out the magnetic field generated by the permanent magnet 2; the stator assembly and rotor assembly separate, the rotor assembly is released, and the permanent magnet brake is in the released braking state; conversely, when the flexible wire 5 is de-energized, the rotor assembly is locked, and the permanent magnet brake is in the braking state. Since the flexible wire 5 is directly exposed outside the permanent magnet brake, it is easy to form knots and entanglements. When the rotor assembly is released and rotates, the flexible wire 5 will interfere with it. The flexible wire 5 is at risk of being cut and broken, which reduces the reliability and stability of the product. Utility Model Content

[0004] The purpose of this invention is to provide a flexible wire protection device for permanent magnet brakes that can improve reliability and stability in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A flexible conductor protection device for a permanent magnet brake, the permanent magnet brake including a stator assembly, a rotor assembly, and a coil assembly, the stator assembly including an iron core, a magnetic yoke, and a permanent magnet, the coil assembly including a coil and a flexible conductor, the coil being placed inside the magnetic yoke and connected to one end of the flexible conductor, the flexible conductor protection device for the permanent magnet brake including a insert, a insert bracket, a conductor bracket, and an insulator, one end of the conductor bracket being mounted on the magnetic yoke, the flexible conductor being mounted on the conductor bracket, the insert bracket being close to the conductor bracket, one end of the insert being mounted on the insert bracket and electrically connected to the other end of the flexible conductor, the portion of the insert bracket, the conductor bracket, and the flexible conductor located outside the magnetic yoke, and the portion of the insert close to the insert bracket being entirely covered by the insulator, the other end of the insert being placed outside the insulator and used for connection to a power source.

[0007] Preferably, for ease of application, the wire support is "L" shaped and the length direction of one of its straight sides is parallel to the length direction of the insert.

[0008] Preferably, to facilitate the positioning of the flexible wire, the outer wall of the wire support is provided with an "L"-shaped wire groove and the flexible wire is placed in the wire groove; or, the flexible wire is installed on the outer wall of the wire support by binding.

[0009] Preferably, in order to facilitate a reliable connection between the insert and the flexible wire, the insert and the flexible wire are welded or riveted together.

[0010] Preferably, the stator assembly further includes a cage mounted on the iron core, the permanent magnet mounted on the cage, the iron core connected to the yoke, the rotor assembly including an armature, leaf springs and a flange, the armature connected to the flange and the leaf springs mounted between the armature and the flange, the yoke located between the armature and the iron core, and a bearing installed between the iron core and the flange.

[0011] The beneficial effects of this utility model are as follows:

[0012] This invention utilizes a wire support to position the flexible wire, a insert support to position the insert, and an insulator to completely cover and fix the corresponding parts of the wire support, insert support, flexible wire, and insert, effectively fixing and protecting the flexible wire, avoiding problems such as tangling, knotting, and breakage of the flexible wire, preventing interference with the rotation of the rotor assembly, and enhancing the stability and reliability of the permanent magnet brake. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the front cross-sectional structure of a traditional permanent magnet brake;

[0014] Figure 2 This is a schematic diagram of the main view cross-sectional structure of the flexible wire protection device for permanent magnet brakes and the permanent magnet brakes described in this utility model. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings:

[0016] like Figure 2 As shown, the permanent magnet brake of this utility model includes a stator assembly, a rotor assembly, and a coil assembly. The stator assembly includes an iron core 1, a magnetic yoke 4, and a permanent magnet 2. The coil assembly includes a coil 6 and a flexible wire 5. The coil 6 is placed inside the magnetic yoke 4 and connected to one end of the flexible wire 5. The flexible wire protection device for the permanent magnet brake of this utility model includes a insert 13, an insert bracket 12, a wire bracket 11, and an insulator 14. One end of the wire bracket 11 is mounted on the magnetic yoke 4, and the flexible wire 5 is mounted on the wire bracket 11. The insert bracket 12 is close to the wire bracket 11. One end of the insert 13 is mounted on the insert bracket 12 and is electrically connected to the other end of the flexible wire 5. The portions of the insert bracket 12, the wire bracket 11, and the flexible wire 5 located outside the magnetic yoke 4, and the portion of the insert 13 close to the insert bracket 12, are all completely covered by the insulator 14. The other end of the insert 13 is placed outside the insulator 14 and is used to connect to a power source (not shown in the figure).

[0017] like Figure 2 As shown, this utility model also illustrates the following more optimized specific structures:

[0018] For ease of application, the wire support 11 is L-shaped and the length direction of one of its straight sides is parallel to the length direction of the insert 13.

[0019] To facilitate the positioning of the flexible wire 5, an "L"-shaped wire groove (not visible in the figure) is provided on the outer wall of the wire bracket 11 and the flexible wire 5 is placed in the wire groove; or, the flexible wire 5 is installed on the outer wall of the wire bracket 11 by binding (not visible in the figure).

[0020] To facilitate a reliable connection between the insert 13 and the flexible wire 5, the insert 13 and the flexible wire 5 are welded or riveted together.

[0021] The stator assembly also includes a cage 3, which is mounted on the iron core 1. The permanent magnet 2 is mounted on the cage 3. The iron core 1 is connected to the magnetic yoke 4. The rotor assembly includes an armature 7, a leaf spring 8, and a flange 9. The armature 7 is connected to the flange 9, and the leaf spring 8 is mounted between the armature 7 and the flange 9. The magnetic yoke 4 is located between the armature 7 and the iron core 1. A bearing 10 is installed between the iron core 1 and the flange 9.

[0022] like Figure 2As shown, in application, the insert 13 is connected to the power supply to form a circuit. When the power supply supplies power to the coil 6, the coil 6 generates a magnetic field. The magnetic field generated by the coil 6 cancels out the magnetic field generated by the permanent magnet 2, the stator assembly and the rotor assembly separate, the rotor assembly is released and rotates, and the permanent magnet brake is in the released braking state. The flexible wire 5 is positioned and protected, avoiding interference with the rotation of the rotor assembly, thus enhancing the stability and reliability of the permanent magnet brake. When the power supply stops supplying power to the coil 6, the magnetic field generated by the permanent magnet 2 attracts the armature 7 through the yoke 4 and the iron core 1, and then attracts the rotor assembly, causing the rotor assembly to be tightly attached to the stator assembly, producing a braking effect on the rotor assembly, and the permanent magnet brake is in the braking state.

[0023] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A flexible conductor protection device for a permanent magnet brake, the permanent magnet brake comprising a stator assembly, a rotor assembly, and a coil assembly, the stator assembly comprising an iron core, a magnetic yoke, and a permanent magnet, the coil assembly comprising a coil and a flexible conductor, the coil being disposed within the magnetic yoke and connected to one end of the flexible conductor, characterized in that: The flexible conductor protection device for a permanent magnet brake includes a insert, a insert bracket, a conductor bracket, and an insulator. One end of the conductor bracket is mounted on the magnetic yoke, the flexible conductor is mounted on the conductor bracket, the insert bracket is close to the conductor bracket, one end of the insert is mounted on the insert bracket and electrically connected to the other end of the flexible conductor, the insert bracket, the conductor bracket, the portion of the flexible conductor located outside the magnetic yoke, and the portion of the insert close to the insert bracket are all completely covered by the insulator, and the other end of the insert is placed outside the insulator and used for connection to a power source.

2. The flexible conductor protection device for permanent magnet brakes according to claim 1, characterized in that: The conductor support is "L" shaped and the length direction of one of its straight sides is parallel to the length direction of the insert.

3. The flexible conductor protection device for permanent magnet brakes according to claim 2, characterized in that: The outer wall of the wire support is provided with an "L"-shaped wire groove and the flexible wire is placed in the wire groove; or, the flexible wire is installed on the outer wall of the wire support by binding.

4. The flexible conductor protection device for permanent magnet brakes according to claim 1, characterized in that: The insert is welded or riveted to the flexible wire.

5. The flexible conductor protection device for permanent magnet brakes according to any one of claims 1-4, characterized in that: The stator assembly further includes a cage mounted on the iron core, the permanent magnet mounted on the cage, the iron core connected to the yoke, the rotor assembly including an armature, leaf springs and a flange, the armature connected to the flange and the leaf springs mounted between the armature and the flange, the yoke located between the armature and the iron core, and a bearing installed between the iron core and the flange.

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