A high efficiency magnetic circuit linear motor

Abstract

The utility model discloses a kind of efficient magnetic circuit linear motor, E-type core is composed of two core end parts and a core middle part;The length, width size of core middle part and two side core end parts is designed differently;And the width direction of core middle part is designed with narrow structure;Winding coil is nested on core middle part. Through the length, width size of core middle part and two side core end parts is designed differently, form asymmetric structure, make core magnetic circuit change from two-dimensional magnetic circuit to three-dimensional magnetic circuit;Disperse magnetic flux, solve the problem that traditional design middle tooth portion magnetic density is too large, ensure motor efficiency and swing torque do not reduce;And realize the structure design of winding coil without width direction protruding;Can effectively control motor total width size, so that it can be more adapted to the use scene requirement of precision;Maximally in effective space goes to realize the efficient conversion of electromagnetic force.

Description

Technical Field

[0001] This utility model belongs to the field of linear motor technology and relates to a high-efficiency magnetic linear motor. Background Technology

[0002] Linear motors are widely used in various devices requiring linear or oscillating drives due to their characteristics of directly achieving linear motion, fast response, and high precision. With the trend of miniaturization and thinning of equipment, more stringent requirements are being placed on the overall dimensions of linear motors (especially their width).

[0003] In existing linear motor stator core structures, the windings are typically wound around the teeth of the core. During miniaturization designs, if the winding size is maintained to ensure performance, the windings can easily exceed the overall width of the motor (e.g., ...). Figure 5 As shown in the figure, this results in an excessively large overall width of the motor, which cannot meet the requirements for a thinner device. Utility Model Content

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A high-efficiency magnetic linear motor includes: a swing bracket and a yaw arm mounted on the swing bracket; a stator assembly is mounted on the swing bracket, and a mover assembly is mounted on the yaw arm; the yaw arm can be oscillating by the cooperation of the stator assembly and the mover assembly.

[0006] The stator assembly includes: an E-type iron core disposed in the support base, the E-type iron core consisting of two iron core ends and an iron core middle section, the iron core middle section being connected to the tail ends of the iron core ends to form an iron core magnetic circuit;

[0007] The length and width dimensions of the middle part of the iron core and the two ends of the iron core are designed differently to form an asymmetrical structure, which transforms the magnetic circuit of the iron core from a two-dimensional magnetic circuit to a three-dimensional magnetic circuit; and the width of the middle part of the iron core is designed to be narrowed, so that a coil arrangement slot is formed between the middle part of the iron core and the bottom position of the iron core.

[0008] A winding coil is nested in the middle of the iron core; and the outer contour of the winding coil in the width direction is arranged in the coil arrangement slot, so that it is flush with or lower than the end face of the support base, realizing a structural design in which the winding coil does not protrude in the width direction.

[0009] As a further embodiment of this utility model: the length of the middle part of the iron core is greater than the length of the ends of the iron core on both sides, and the width of the middle part of the iron core is less than the width of the ends of the iron core on both sides.

[0010] As a further embodiment of this utility model: the width of the coil arrangement slot is adapted to the width of the winding coil, and the depth of the slot is not less than the thickness of the winding coil.

[0011] The beneficial effects of this utility model are as follows: By differentiating the length and width dimensions of the middle part of the iron core from the two ends of the iron core, an asymmetrical structure is formed, which transforms the magnetic circuit of the iron core from a two-dimensional magnetic circuit to a three-dimensional magnetic circuit; the magnetic flux is dispersed, solving the problem of excessive magnetic density in the middle tooth section in traditional designs, ensuring that the motor efficiency and oscillation torque are not reduced; and the width direction of the middle part of the iron core adopts a narrowing structure design, realizing a structure design in which the winding coil does not protrude in the width direction; it can effectively control the total width dimension of the motor, making it more suitable for the needs of precision application scenarios; and it maximizes the efficient conversion of electromagnetic force in the effective space. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the stator assembly and mover assembly in this utility model.

[0014] Figure 3 This is a schematic diagram of the E-type iron core structure in this utility model.

[0015] Figure 4 This is a schematic diagram of the swing bracket structure in this utility model.

[0016] Figure 5 This is a schematic diagram of the existing technology structure. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. It should be understood that this application is not limited to the exemplary embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0018] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the number of the indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "a plurality" means two or more, unless otherwise explicitly and specifically defined.

[0020] In the embodiment of the present utility model, unless otherwise explicitly specified and defined, terms such as "installation", "connection", "coupling" and "fixing" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated into one piece; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, it may be the communication inside two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0021] The present utility model provides, please refer to Figures 1-4 , in an embodiment of the present utility model, a high-efficiency magnetic circuit linear motor, comprising: a swing bracket 2, and a stator set 1 and a mover set 3 installed in the swing bracket 2;

[0022] The main body of the swing bracket 2 is a "凵"-shaped structural bracket base 22, and a mounting position 23 for mounting the stator set 1 is provided at the center of the bracket base 22; two sets of parallel arranged yaw arm frames 21 are arranged at the upper end of the mounting position 23, both ends of the yaw arm frames 21 are elastically connected to the swing bracket 2, and the mover set 3 is mounted on the yaw arm frames 21;

[0023] The stator set 1 comprises: an E-shaped iron core 12 arranged in the mounting position 23, the E-shaped iron core 12 consists of two iron core ends 121 and one iron core middle portion 122, the iron core middle portion 122 is connected to the tail ends of the iron core ends 121 to form an iron core magnetic circuit;

[0024] A winding coil 11 is nested on the iron core middle portion 122, when the winding coil 11 is energized for operation, the magnetic field generated by the winding coil 11 can be conducted from the iron core middle portion 122 through the iron core magnetic circuit to the two iron core ends 121 of the E-shaped iron core 12; due to the closed property of the magnetic circuit, the magnetic pole of the iron core middle portion 122 is opposite to the magnetic poles of the iron core ends 121 on both sides;

[0025] The mover set 3 comprises: two sets of swing bars 31 installed on the lower end face of the yaw arm frames 21 (the swing bars 31 are arranged along the length direction of the yaw arm frames 21), the lower end of the swing bars 31 is provided with magnetized magnetic sheets 32 arranged close to the E-shaped iron core 12; and the magnetization directions of the magnetized magnetic sheets 32 on the two sets of swing bars 31 are opposite;

[0026] Therefore, under this structural arrangement, the armature magnetic field of the middle part 122 and the two ends 121 of the E-type iron core 12 interacts synchronously with the excitation magnetic field of the magnetized sheet 32.

[0027] Taking a certain instant as an example, when the two ends 121 of the E-type iron core 12 are the N pole of armature reaction, the middle part 122 of the iron core is the S pole.

[0028] When the left side of the first set of magnetized magnetic sheets 32 is the S pole and the right side is the N pole, at that instant, according to the principle of magnetic pole attraction and repulsion, the magnetized magnetic sheet 32 ​​(swing bar 31) will move to the left. Since the other set of magnetized magnetic sheets 32 is opposite to its magnetization direction, the other set of magnetized magnetic sheets 32 will move to the opposite right. When the N and S poles of the E-type iron core 12 switch, the two sets of magnetized magnetic sheets 32 will move to the other side.

[0029] The swing component assembly, which outputs power, is mounted on the swing boom 21. The swing boom 21 is driven to swing left and right by two sets of swing bars 31, thereby driving the swing component assembly to output power.

[0030] In the above embodiment, the magnetic pole changes of the core end 121 and the core middle 122 in the E-type iron core 12 are determined by the positive and negative circuits of the input winding coil 11; the swing amplitude of the swing bar 31 is determined by the frequency of the current input; the torque of the swing bar 31 is determined by the magnitude of the input current. Therefore, in actual use, the staff can adjust the operation according to the above principles to achieve the required technical effect.

[0031] Furthermore, the length and width dimensions of the middle part 122 of the iron core and the two ends 121 of the iron core are designed differently to form an asymmetrical structure, which transforms the magnetic circuit of the iron core from a two-dimensional magnetic circuit to a three-dimensional magnetic circuit; the magnetic flux is dispersed, which solves the problem of excessive magnetic density in the middle tooth section in the traditional design, and ensures that the motor efficiency and oscillation torque are not reduced; and the width direction of the middle part 122 of the iron core (the length direction of the two ends 121 of the iron core) adopts a narrowing structure design, so that a coil arrangement slot 123 is formed between the middle part 122 of the iron core and the bottom position of the iron core;

[0032] Furthermore, the outer contour of the winding coil 11 in the width direction is arranged in the coil arrangement slot 123, so that it is flush with or lower than the end face of the bracket base 22, realizing a structural design in which the winding coil 11 does not protrude in the width direction; this can effectively control the total width dimension of the motor, making it more suitable for precision application scenarios.

[0033] Furthermore, the length of the middle part 122 of the iron core is greater than the length of the two ends 121 of the iron core, and the width of the middle part 122 of the iron core is less than the width of the two ends 121 of the iron core; while realizing the asymmetrical structure of the E-type iron core 12, the design of the middle part 122 of the iron core provides more space for the magnetic field to flow; effectively avoids the phenomenon of magnetic circuit saturation and ensures that the electromagnetic conversion efficiency of the motor will not decrease.

[0034] Furthermore, the width of the coil arrangement slot 123 is adapted to the width of the winding coil 11, and the depth of the slot is not less than the thickness of the winding coil 11, so that the winding coil 11 can be housed in the mounting position 23 of the bracket base 22.

[0035] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-efficiency magnetic linear motor, characterized in that, Includes: a swing bracket and a sway boom mounted on the swing bracket; the swing bracket is equipped with a stator assembly, and the sway boom is equipped with a mover assembly; The oscillating operation of the yaw boom is achieved by coordinating the stator groups; The stator assembly includes: an E-type iron core disposed in the support base, the E-type iron core consisting of two iron core ends and an iron core middle section, the iron core middle section being connected to the tail ends of the iron core ends to form an iron core magnetic circuit; The length and width dimensions of the middle part of the iron core and the two ends of the iron core are designed differently to form an asymmetrical structure, which transforms the magnetic circuit of the iron core from a two-dimensional magnetic circuit to a three-dimensional magnetic circuit; and the width of the middle part of the iron core is designed to be narrowed, so that a coil arrangement slot is formed between the middle part of the iron core and the bottom position of the iron core. A winding coil is nested in the middle of the iron core; and the outer contour of the winding coil in the width direction is arranged in the coil arrangement slot, so that it is flush with or lower than the end face of the support base, realizing a structural design in which the winding coil does not protrude in the width direction.

2. The high-efficiency magnetic linear motor according to claim 1, characterized in that, The length of the middle part of the iron core is greater than the length of the two ends of the iron core, and the width of the middle part of the iron core is less than the width of the two ends of the iron core.

3. The high-efficiency magnetic linear motor according to claim 1, characterized in that, The width of the coil arrangement slot is adapted to the width of the winding coil, and the depth of the slot is not less than the thickness of the winding coil.

Images