Permanent magnet brake structure with wire underneath type coil

Abstract

The utility model discloses a permanent magnet brake structure with a lead underneath type coil, which belongs to the technical field of permanent magnet brakes, and comprises a stator part and a rotor part, the stator part comprises a magnetic shell, the magnetic shell comprises an annular groove-shaped space, and a coil assembly, a lower flange, a permanent magnet and an upper flange are sequentially arranged from the bottom of the annular groove-shaped space to the top; the coil assembly comprises a coil framework, the coil framework comprises a barrel, an upper annular plate and a lower annular plate are arranged at the upper end and the lower end of the barrel respectively, a winding space is formed between the upper annular plate and the lower annular plate, and a wire groove is formed in the peripheral wall of the lower annular plate and communicated with the winding space. An annular groove is formed in the bottom of the annular groove-shaped space of the magnetic shell, and an annular convex part matched with the annular groove is arranged at the bottom of the lower annular plate; by means of the brake structure, the space use efficiency of the brake is improved, arrangement of more copper wires is achieved, and magnetism is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to permanent magnet brake technical field, especially relate to a coil is the permanent magnet brake structure of wire under -the -mounting. BACKGROUND

[0002] Common electric brake usually has three ways: regenerative braking, dynamic braking and electromagnetic braking, wherein, electromagnetic braking gradually adopts permanent magnet brake, and it is in line with the development trend that motor is lighter in quality and smaller in size, is the ideal automation execution element at present.

[0003] At present, the structure of the coil part of the permanent magnet brake can refer to the Chinese utility model patent with the authorization publication number CN217713421U. In the radial space between the coil and the side wall of the magnetic shell inside this structure, there is a wire placement position. With the continuous growth of market demand, the requirement for the volume of the brake becomes more stringent, so it is necessary to efficiently utilize the limited space while ensuring that the performance of the brake is not affected. UTILITY MODEL CONTENTS

[0004] The utility model mainly solves the technical problem to provide a coil is the permanent magnet brake structure of wire under -the -mounting, increase the wire -winding space of coil, effectively improve the space utilization, make the whole permanent magnet brake structure more compact.

[0005] To solve the above technical problem, one technical scheme adopted by the utility model is:

[0006] A coil is the permanent magnet brake structure of wire under -the -mounting, including stator part and rotor part, the stator part includes the magnetic shell, the magnetic shell includes annular groove space, from the bottom of the annular groove space upwards sequentially set with coil assembly, lower flange, permanent magnet and upper flange;

[0007] The coil assembly includes coil skeleton, the coil skeleton includes cylinder, the upper and lower ends of the cylinder are provided with upper ring plate and lower ring plate respectively, the upper ring plate and the lower ring plate are the wire -winding space between, the outer peripheral wall of the lower ring plate is provided with wire slot, and the wire slot is communicated with the wire -winding space;

[0008] The bottom of the annular groove space has annular groove, and the bottom of the lower ring plate has annular convex portion matched with the annular groove.

[0009] Further, the bottom of the annular groove space includes first annular plane, annular inclined plane and second annular plane arranged in the radial direction from inside to outside, and the second annular plane is lower than the first annular plane.

[0010] Further, the annular groove includes the annular inclined plane and the second annular plane.

[0011] Further, the annular slope is inclined downwardly away from the axis.

[0012] Further, the magnetic shell is provided with a wire through hole, which is communicated with the wire slot.

[0013] Further, the permanent magnet is in the form of a whole annular ring, and the bottom of the upper flange is provided with an annular step groove, and the permanent magnet is embedded in the step groove. Compared with the prior art, the difficulty of machining and assembling can be reduced, and the space of the bottom of the lower flange is effectively utilized to realize stable fixation of the permanent magnet.

[0014] Further, the permanent magnet is in the form of a whole annular ring, and the bottom of the upper flange is provided with an annular step groove, and the permanent magnet is embedded in the step groove. Compared with the prior art, the difficulty of machining and assembling can be reduced, and the space of the bottom of the lower flange is effectively utilized to realize stable fixation of the permanent magnet.

[0015] The beneficial technical effects of the utility model are:

[0016] The utility model discloses a magnetic shell bottom axial direction space, sets down annular recess in the bottom of annular groove space, and the bottom of lower ring plate is configured with the annular convex part that is adapted to it simultaneously, and sets up wire slot to provide the placement space of wire. The space use efficiency of brake is promoted, realizes more copper wire's arrangement, and enhances magnetism. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the whole structure schematic diagram (cross section view) of the utility model;

[0018] Fig. 2 It is the structure schematic diagram (explosion diagram) of the stator part of the utility model;

[0019] Fig. 3 It is the structure schematic diagram of the coil framework of the utility model;

[0020] The marks of each part in the drawing are as follows:

[0021] 1, rotor part;

[0022] 2, stator part;21, magnetic shell;211, wire through hole;22, annular groove space;221, annular recess;222, first annular plane;223, annular slope;224, second annular plane;23, coil assembly;231, barrel;232, upper ring plate;233, lower ring plate;2331, wire slot;2332, annular convex part;234, winding space;24, lower flange;25, permanent magnet;26, upper flange;261, step groove;

[0023] 3, wire. DETAILED DESCRIPTION

[0024] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0025] This specific embodiment discloses in detail a permanent magnet brake structure with the coil being a bottom-mounted wire, such as... Figs. 1 to 3 As shown, it includes a stator section 2 and a rotor section 1;

[0026] Specifically, the stator section includes a magnetic housing 21, which includes an annular groove space 22. From the bottom of the annular groove space upwards, a coil assembly 23, a lower flange 24, a permanent magnet 25, and an upper flange 26 are arranged sequentially. The permanent magnet is generally annular, and the bottom of the upper flange is provided with an annular stepped groove 261, in which the permanent magnet is embedded. The permanent magnet has an axial magnetization structure.

[0027] The coil assembly includes a coil frame, which includes a cylindrical body 231. An upper ring plate 232 and a lower ring plate 233 are respectively provided at the upper and lower ends of the cylindrical body. A winding space 234 is located between the upper and lower ring plates. A wire groove 2331 is provided on the outer peripheral wall of the lower ring plate, and the wire groove is connected to the winding space. A wire through-hole 211 is provided on the magnetic shell, and the wire through-hole is connected to the wire groove.

[0028] The bottom of the annular groove includes a first annular plane 222, an annular inclined plane 223, and a second annular plane 224 arranged radially from the inside out. The second annular plane is lower than the first annular plane, forming an annular groove 221 with an annular inclined plane on one side and the second annular plane on the bottom. The bottom of the lower ring plate has an annular protrusion 2332 that matches the annular groove. The annular inclined plane slopes downward away from the axis, which will not affect the magnetic conductivity after the structural change.

[0029] Working principle of this utility model:

[0030] This invention utilizes the space at the bottom of the magnetic housing in the axial direction, and sets an annular groove downward at the bottom of the annular groove-shaped space. At the same time, it sets a matching annular protrusion at the bottom of the lower ring plate and sets a wire groove to provide space for placing wires, thereby improving the space utilization efficiency of the brake, realizing the arrangement of more copper wires, and enhancing the magnetism.

[0031] It is worth noting that this embodiment does not specifically describe how the stator parts cooperate with each other, but the main technical problem solved by this utility model is to make the space of the stator parts more compact, so this part will not be described in detail.

[0032] In the description of the utility model, it is necessary to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "front", "back" and so on indicate the orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicating or implying that the device or element indicated must have a particular orientation, is constructed and operated in a particular orientation, therefore can not be understood as the limitation of the utility model.

[0033] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "connection", "arrangement" should be broad understanding, for example, can be fixedly connected, set, also can be detachably connected, set, or integrally connected, set. For ordinary skilled in the art, the specific meaning of the above terms in the application can be understood according to specific circumstances.

[0034] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, it should be pointed out that, for ordinary skilled in the art, on the premise of not departing from the technical principles of the utility model, can make a number of improvements and variations, these improvements and variations also should be considered as the protection scope of the utility model.

Claims

1. A permanent magnet brake structure of the type in which the coil is under the conductor, comprising a stator portion (2) and a rotor portion (1), characterized in that: The stator part comprises a magnetic shell (21) including an annular slot-like space (22), a coil assembly (23), a lower flange (24), a permanent magnet (25) and an upper flange (26) being sequentially arranged upwards from the bottom of the annular slot-like space; The coil assembly comprises a coil framework including a cylinder (231), an upper ring plate (232) and a lower ring plate (233) being respectively arranged at the upper and lower ends of the cylinder, a wire winding space (234) being between the upper ring plate and the lower ring plate, a wire groove (2331) being opened at the outer circumferential wall of the lower ring plate and being communicated with the wire winding space; The bottom of the annular slot-like space has an annular groove (221), and the bottom of the lower ring plate has an annular protrusion (2332) matched with the annular groove.

2. A coil down permanent magnet brake structure according to claim 1, characterised in that: The bottom of the annular slot-like space comprises a first annular plane (222), an annular inclined surface (223) and a second annular plane (224) being sequentially arranged radially from inside to outside, and the second annular plane is lower than the first annular plane.

3. A coil down permanent magnet brake structure according to claim 2, wherein: The annular groove comprises the annular inclined surface and the second annular plane.

4. A coil down permanent magnet brake structure according to claim 2, wherein: The annular inclined surface is inclined downwards away from the axis.

5. A coil down permanent magnet brake structure according to claim 1, wherein: The magnetic shell is provided with a wire through hole (211) communicated with the wire groove.

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