Electromagnetic brake with flat enameled wire structure

Abstract

The utility model relates to the technical field of electromagnetic brakes, and provides an electromagnetic brake with a flat enameled wire structure, which comprises a stator, a mounting groove is arranged on the end face of one side of the stator, and a detachably connected coil assembly is placed in the mounting groove; the coil assembly comprises a winding drum and a flat wire, a positioning ring plate extending in the radial direction is arranged at the bottom end of the winding drum, a plurality of wire separation plates are evenly distributed on the positioning ring plate in a surrounding mode, the wire separation plates are detachably connected with the positioning ring plate, and the flat wire is wound on the winding drum and the wire separation plates. According to the utility model, the slot filling rate after the coil is installed can be improved, and the volume after the coil is wound is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic brakes, in particular to an electromagnetic brake with a flat enameled wire structure. Background Art

[0002] Electromagnetic brake is a device that uses electromagnetic force to stop or slow down mechanical movement. Its working principle is based on Faraday's law of electromagnetic induction and Lenz's law. When the coil of the electromagnetic brake is energized, a change in magnetic flux will occur in the iron core. This changing magnetic field causes the friction plate to move and compress the spring, ultimately generating a braking force to slow down, stop or maintain the position of the controlled object.

[0003] The existing electromagnetic brake coil is usually wound with round copper wire, and the filling factor of the coil in the coil slot is low. There are certain gaps between the copper wires, which makes the volume of the coil after winding relatively large. Utility Model Content

[0004] The utility model aims to provide an electromagnetic brake with a flat enameled wire structure, which can improve the slot filling rate after the coil is installed and reduce the volume of the coil.

[0005] The embodiment of the utility model is realized through the following technical scheme: an electromagnetic brake of a flat enameled wire structure, comprising a stator, one side end face of the stator is provided with an installation groove, a detachably connected coil assembly is placed in the installation groove; the coil assembly comprises a winding drum and a flat wire, the bottom end of the winding drum is provided with a radially extending positioning ring plate, a plurality of wire separators are evenly distributed on the positioning ring plate, and the wire separators are detachably connected to the positioning ring plate, and the flat wire is wound on the winding drum and the wire separators.

[0006] Preferably, one end of the wire separator is connected to the positioning ring plate, and the coil assembly is installed in the installation groove, and the wire separator extends from one end surface of the stator.

[0007] Preferably, the separator is made of metal heat-conducting material.

[0008] Preferably, a limiting portion is provided in the middle of the wire separator.

[0009] Preferably, it further comprises an armature and a brake disc which are arranged axially in sequence, a return spring is connected between the armature and the stator, and the brake disc is arranged closely to the armature.

[0010] Preferably, the cross-section of the flat wire is an elliptical or square structure.

[0011] Preferably, the separator plate is a curved long strip structure.

[0012] Preferably, wear-resistant layers are provided on both sides of the flat wire.

[0013] The technical solution of the embodiments of the utility model has at least the following advantages and beneficial effects: compared with the prior art, the utility model forms a coil module by arranging a flat wire and a winding drum, which makes installation and wiring more convenient, and the flat wire is wound more tightly, so that the coil assembly occupies a smaller volume while maintaining consistent performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A schematic structural diagram of an electromagnetic brake having a flat enameled wire structure provided by an embodiment of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the electromagnetic brake in the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the coil assembly in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the wire separator in the utility model;

[0019] Figure 5 This is a schematic diagram of the end surface structure of one side of the stator in the utility model;

[0020] Figure 6 It is a cross-sectional view of the flat wire in the present invention.

[0021] Icons: 1- stator, 2- mounting groove, 3- coil assembly, 31- winding drum, 32- positioning ring plate, 33- wire separator, 331- limiting part, 34- flat wire, 341- wear-resistant layer, 4- return spring, 5- armature, 6- brake disc. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] Example

[0026] The following is further described in conjunction with specific embodiments. Figure 1-Figure 6 As shown, this embodiment is an electromagnetic brake of a flat enameled wire structure, including a stator 1, a mounting groove 2 is opened on one end surface of the stator 1, and a detachably connected coil assembly 3 is placed in the mounting groove 2; the coil assembly 3 includes a winding drum 31 and a flat wire 34, and the bottom end of the winding drum 31 is provided with a radially extending positioning ring plate 32, and a plurality of wire separators 33 are evenly distributed around the positioning ring plate 32, and the wire separators 33 are detachably connected to the positioning ring plate 32, and the flat wire 34 is wound on the winding drum 31 and the wire separators 33; Specifically, the utility model A layer of flat wire 34 is first wound on the winding drum 31, and then a plurality of separators 33 are inserted to separate them. The plurality of separators 33 form a new circle of winding fitting part, and the flat wire 34 is wound to form two layers. In this way, each coil wound in one circle is connected with a circle of separators 33 radially outward. After the winding is completed, the coil assembly 3 is completely loaded into the installation groove 2, which has a higher slot fill rate and allows a higher current density. Due to the flat structure, its fit is higher and it is more convenient to install winding and wiring. The separator 33 is a smaller thin plate, and there is a certain heat dissipation space between each layer of coils.

[0027] Reference Figure 2 and Figure 3 As shown, one end of the wire separator 33 in this embodiment is connected with the positioning ring plate 32, and the coil assembly 3 is installed in the installation groove 2, and the wire separator 33 extends from one side end surface of the stator 1; the wire separator 33 is made of metal heat-conducting material. Specifically, the wire separator 33 can be made of copper or other metals for heat conduction. The two ends of the wire separator 33 are evenly contacted with flat wires 34, so when it is powered on and heated, the heat generated can be transferred to the outer end of the stator 1, thereby helping to reduce the heating temperature of the coil assembly 3.

[0028] Reference Figure 4As shown, a limiting portion 331 is provided in the middle of the wire separator 33 in this embodiment; specifically, when the wire separator 33 passes through the positioning ring plate 32, the limiting portion 331 is used to prevent it from over-penetrating, and an adhesive is used to bond and fix it.

[0029] like Figure 1 and Figure 2 As shown, this embodiment further includes an armature 5 and a brake disc 6 which are arranged axially in sequence, a return spring 4 is connected between the armature 5 and the stator 1 , and the brake disc 6 is arranged closely to the armature 5 .

[0030] It is worth noting that the cross-section of the flat wire 34 is an elliptical or square structure; specifically, the square flat wires 34 can be seamlessly fitted one after another, which helps to reduce the overall volume of the brake, and it has a larger surface area than the round copper wire, which helps to reduce the temperature rise of the coil.

[0031] The wire separators 33 in this embodiment are curved long strip structures; specifically, a plurality of wire separators 33 surround and pass through the positioning ring plate 32 to form a winding circle.

[0032] In order to overcome the relative friction between the flat wires 34 due to the tension when the coil is wound, wear-resistant layers 341 are provided on both sides of the flat wires 34 to provide better wear resistance.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electromagnetic brake with a flat enameled wire structure, comprising a stator (1), one end surface of the stator (1) being provided with a mounting groove (2), characterized in that: A detachably connected coil assembly (3) is placed in the installation groove (2); The coil assembly (3) comprises a winding drum (31) and a flat wire (34); a positioning ring plate (32) extending radially is provided at the bottom end of the winding drum (31); a plurality of wire separators (33) are evenly distributed around the positioning ring plate (32); and the wire separators (33) are detachably connected to the positioning ring plate (32); and the flat wire (34) is wound on the winding drum (31) and the wire separators (33).

2. The electromagnetic brake of the flat enameled wire structure according to claim 1, characterized in that: One end of the wire separator (33) is connected to the positioning ring plate (32), and the coil assembly (3) is installed in the installation groove (2). The wire separator (33) extends from one end surface of the stator (1).

3. The electromagnetic brake of the flat enameled wire structure according to claim 2, characterized in that: The wire separator (33) is made of a metal heat-conducting material.

4. The electromagnetic brake of the flat enameled wire structure according to claim 2, characterized in that: A limiting portion (331) is provided in the middle of the wire separator (33).

5. The electromagnetic brake of the flat enameled wire structure according to claim 2, characterized in that: It also comprises an armature (5) and a brake disc (6) which are arranged axially in sequence, a return spring (4) is connected between the armature (5) and the stator (1), and the brake disc (6) is arranged closely to the armature (5).

6. The electromagnetic brake of the flat enameled wire structure according to claim 1, characterized in that: The cross section of the flat wire (34) is an elliptical or square structure.

7. The electromagnetic brake of the flat enameled wire structure according to claim 1, characterized in that: The separator plate (33) is a curved long strip structure.

8. The electromagnetic brake of the flat enameled wire structure according to claim 1, characterized in that: Wear-resistant layers (341) are provided on both sides of the flat wire (34).

Images