Linear motion micro motor

Abstract

The utility model belongs to the technical field of micro motors, and particularly relates to a linear motion micro motor, which comprises a main body, a heat dissipation assembly is mounted on the outer side of the main body and comprises heat dissipation fins, the inner surfaces of the heat dissipation fins are fixedly connected with the outer surface of the main body, and a plurality of square grooves are formed in the side surfaces of the heat dissipation fins. A plurality of heat dissipation plates are arranged on the side surfaces of the heat dissipation fins, elastic pieces are fixedly connected to the side surfaces of the heat dissipation plates, one ends of the elastic pieces penetrate through the interiors of the square grooves and extend to the other sides of the heat dissipation fins, clamping blocks are fixedly connected to the side surfaces of one ends of the elastic pieces, and inclined grooves are formed in the side surfaces of the clamping blocks. According to the utility model, heat can be quickly dissipated, heat accumulation is avoided, the performance is improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of micro motors, in particular to a linear motion micro motor. Background Art

[0002] Linear motors are also called linear motors, linear motors, linear motors or push rod motors. Linear motors are a transmission device that converts electrical energy directly into linear motion mechanical energy without any intermediate conversion mechanism. It can be regarded as a rotating motor cut radially and unfolded into a plane. Commonly used linear motor types are mainly flat plate type, U-shaped slot type and tube type. The typical composition of the coil is three-phase, and the brushless commutation is realized by the Hall element.

[0003] In the prior art, since the movement of the linear motor mainly relies on the action of the electromagnetic field, the electromagnetic field will heat up locally during operation, causing the linear motor to generate a large amount of heat during operation. The accumulation of this heat will seriously affect the performance and service life of the linear motor. Summary of the invention

[0004] The utility model aims to provide a linear motion micro motor, which can quickly dissipate heat and avoid heat accumulation, thereby improving performance and extending service life.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a linear motion micro motor, including a main body, a heat dissipation component is installed on the outside of the main body, the heat dissipation component includes a heat sink, the inner surface of the heat sink is fixedly connected to the outer surface of the main body, the side surface of the heat sink is provided with a square groove, the number of the square grooves is multiple, the side surface of the heat sink is provided with a heat sink, the number of the heat sink is multiple, the side surface of the heat sink is fixedly connected with an elastic member, one end of the elastic member passes through the inside of the square groove and extends to the other side of the heat sink, the side surface of one end of the elastic member is fixedly connected with a card block, and the side surface of the card block is provided with an oblique groove.

[0006] Optionally, there are two heat dissipation components, and the two heat dissipation components are mirror-symmetrical along the central axis of the main body.

[0007] Optionally, a stator coil is fixedly connected to the inner surface of the main body, the number of the stator coils is three, and the three stator coils are evenly and equidistantly arranged.

[0008] Optionally, an output shaft is disposed inside the main body, and both ends of the output shaft extend through the interior of the main body to the outside of the main body.

[0009] Optionally, a mover magnet is fixedly connected to the outer surface of the output shaft, and a gap is provided between the mover magnet and the stator coil.

[0010] Optionally, a limiting groove is provided on the outer surface of the output shaft, the number of the limiting grooves is two, the interior of the main body is fixedly connected with a limiting block, the number of the limiting blocks is two, and the two limiting blocks are respectively located inside the two limiting grooves.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model is provided with a heat dissipation assembly, so that the heat dissipation plate corresponds to the square groove, and the elastic member is inserted into the square groove. At this time, the elastic member is guided by the inclined groove and the pressure applied by the square groove to the elastic member so that the elastic member bends inward. After being fully inserted, the obstruction of the elastic member is released to restore it to its original state. At this time, the side of the clamping block contacts the side surface of the heat dissipation fin, and the elastic member is clamped, thereby fixing the heat dissipation plate and making the heat dissipation plate contact the heat dissipation fin. When the utility model generates heat during operation, the heat dissipation fin quickly absorbs the conducted heat and cooperates with the heat dissipation plate to dissipate heat, so that the heat is reduced. The utility model can quickly dissipate heat, avoid heat accumulation, thereby improving performance and extending service life. At the same time, the heat dissipation plate can be increased or decreased according to needs to improve the heat dissipation effect and facilitate heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from a first viewing angle;

[0015] Figure 2 This is a schematic diagram of the third perspective structure of the utility model;

[0016] Figure 3 It is a schematic diagram of a longitudinal partial cross-section stereoscopic structure of the utility model;

[0017] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the heat sink of the utility model;

[0019] Figure 6 For this utility model Figure 5 Schematic diagram of the enlarged structure at point B in the middle.

[0020] In the figure: 1. main body; 2. heat dissipation assembly; 201. heat sink; 202. square groove; 203. heat dissipation plate; 204. elastic member; 205. clamping block; 3. stator coil; 4. output shaft; 5. mover magnet; 6. limit groove; 7. limit block. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0023] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] Now, a linear motion micro motor provided by the embodiment of the utility model is described. Figures 1 to 6A linear motion micro motor comprises a main body 1, a heat dissipation assembly 2 is installed on the outer side of the main body 1, the heat dissipation assembly 2 comprises a heat sink 201, the inner surface of the heat sink 201 is fixedly connected to the outer surface of the main body 1, a square groove 202 is opened on the side surface of the heat sink 201, the number of the square grooves 202 is multiple, and the multiple square grooves 202 are arranged in a ring shape around the heat sink 201, a heat sink 203 is arranged on the side surface of the heat sink 201, the number of the heat sink 203 is multiple, and the side surface of the heat sink 203 is fixedly connected with an elastic member 204, two elastic members 204 are arranged in one heat sink 203, one end of the elastic member 204 passes through the inside of the square groove 202 and extends to the other side of the heat sink 201, and a clamping block 205 is fixedly connected to the side surface of one end of the elastic member 204, and the clamping block 205 is fixedly connected to the side surface of the clamping block 20 5 is provided with an oblique groove, and there are two heat dissipation components 2. The two heat dissipation components 2 are mirror-symmetrical along the central axis of the main body 1. When in use, the heat dissipation plate 203 is matched with the square groove 202, and the elastic member 204 is inserted into the square groove 202. At this time, the elastic member 204 is guided by the oblique groove and the pressure exerted by the square groove 202 on the elastic member 204, so that the elastic member 204 is bent inward. After it is fully inserted, the obstruction of the elastic member 204 is released to restore it to its original state. At this time, the side surface of the clamping block 205 contacts the side surface of the heat sink 201, and the elastic member 204 is clamped, so that the heat dissipation plate 203 is fixed, and the heat dissipation plate 203 is in contact with the heat sink 201. When the utility model generates heat during operation, the heat sink 201 quickly absorbs the conductive heat and cooperates with the heat dissipation plate 203 to dissipate heat, so that the heat of the motor is reduced.

[0026] In the embodiment of the present utility model, please refer to Figures 1 to 6 The inner surface of the main body 1 is fixedly connected with a stator coil 3, the number of the stator coils 3 is three, and the three stator coils 3 are evenly and equidistantly arranged. An output shaft 4 is arranged inside the main body 1, and both ends of the output shaft 4 extend through the inside of the main body 1 to the outside of the main body 1. The outer surface of the output shaft 4 is fixedly connected with a mover magnet 5, and a gap is arranged between the mover magnet 5 and the stator coil 3. Power is supplied to the stator coil 3, and the mover magnet 5 pushes the output shaft 4 to move linearly through the action of the electromagnetic field.

[0027] In the embodiment of the present utility model, please refer to Figures 1 to 6 The outer surface of the output shaft 4 is provided with a limiting groove 6, and there are two limiting grooves 6. The interior of the main body 1 is fixedly connected with a limiting block 7, and there are two limiting blocks 7. The two limiting blocks 7 are respectively located inside the two limiting grooves 6. The limiting groove 6 and the limiting block 7 cooperate to limit the output distance of the output shaft 4, so as to facilitate the control of the movement of the output shaft 4.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A linear motion micro motor, comprising a main body (1), characterized in that: A heat dissipation assembly (2) is installed on the outer side of the main body (1), and the heat dissipation assembly (2) comprises a heat sink (201), the inner surface of the heat sink (201) is fixedly connected to the outer surface of the main body (1), the side surface of the heat sink (201) is provided with a square groove (202), and the number of the square grooves (202) is multiple; a heat dissipation plate (203) is provided on the side surface of the heat sink (201), and the number of the heat dissipation plates (203) is multiple; an elastic member (204) is fixedly connected to the side surface of the heat sink (203), one end of the elastic member (204) passes through the inside of the square groove (202) and extends to the other side of the heat sink (201); a clamping block (205) is fixedly connected to the side surface of one end of the elastic member (204), and the side surface of the clamping block (205) is provided with an oblique groove.

2. A linear motion micro motor as claimed in claim 1, characterized in that: The number of the heat dissipation components (2) is two, and the two heat dissipation components (2) are mirror-symmetrical along the central axis of the main body (1).

3. A linear motion micro motor as claimed in claim 1, characterized in that: The inner surface of the main body (1) is fixedly connected with a stator coil (3), the number of the stator coils (3) is three, and the three stator coils (3) are evenly and equidistantly arranged.

4. A linear motion micro motor as claimed in claim 1, characterized in that: An output shaft (4) is arranged inside the main body (1), and both ends of the output shaft (4) pass through the interior of the main body (1) and extend to the outside of the main body (1).

5. A linear motion micro motor as claimed in claim 4, characterized in that: A mover magnet (5) is fixedly connected to the outer surface of the output shaft (4), and a gap is provided between the mover magnet (5) and the stator coil (3).

6. A linear motion micro motor as claimed in claim 4, characterized in that: The outer surface of the output shaft (4) is provided with a limiting groove (6), the number of the limiting grooves (6) is two, the interior of the main body (1) is fixedly connected with a limiting block (7), the number of the limiting blocks (7) is two, and the two limiting blocks (7) are respectively located inside the two limiting grooves (6).

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