A kind of anti-shake motor

Abstract

The utility model discloses a kind of anti-shake motors, including base, sliding disc and coil assembly, sliding disc is installed above base, coil assembly is sleeved in the periphery of sliding disc, coil assembly includes four square frames, four square frames are sleeved on several fixed columns;Sliding disc is provided with one side wall in four directions, and each side wall is equipped with electromagnet assembly, and several ball grooves are arranged on the bottom surface of sliding disc to install ball;Through hole is arranged on the four corner positions of bottom plate, and there is lower hook in through hole;Sliding disc is provided with stand on four corner positions, and upper hook is arranged on the outside top of stand, one end of spring is hung on upper hook, the other end is hung on lower hook, sliding disc is always close to bottom plate by using the pulling force of spring, and ball on the bottom surface of sliding disc is supported on bottom plate;The gap between its sliding disc and coil assembly can be reserved enough large, and the maximum distance of sliding disc one-way movement reaches 1.3mm, to meet customer requirements.

Description

Technical Field

[0001] This utility model relates to a type of anti-shake motor. Background Technology

[0002] Image stabilization, or image fixing, for monocular rangefinders or cameras has been around for many years. The main idea is that when a person holds a monocular rangefinder or camera, hand shake can cause the image of the observed object to not be centered in the field of view. Image stabilization corrects this and ensures image quality. This will not be discussed in detail here. Image stabilization designs for binoculars are relatively less common.

[0003] The patent, numbered 202311520311.6 and titled "A Binocular Image Stabilized Telescope and Its Control Method," describes a method where each prism group within the binoculars employs an X-axis drive mechanism and a Y-axis drive mechanism to achieve X-axis and Y-axis rotation compensation. Therefore, a total of four independent drive mechanisms are used to stabilize the image. This method operates on an inverted beam-splitting prism group, resulting in a complex structure, large size, and high manufacturing cost.

[0004] In light of this, current field-of-view stabilization designs for single-element lenses have emerged, involving the redesign of a stabilization motor. This motor is simple in structure and reliable in operation, using four directions (forward, backward, left, and right) to compensate for the technical problem of the observed object not being centered in the field of view due to instability of the handheld laser rangefinder. However, research and experiments on the current stabilization motor have revealed the following technical issues: the maximum unidirectional movement range is within 1.1mm. Due to structural limitations and sensor sensitivity, the actual maximum unidirectional movement range is found to be less than 1.1mm, which does not meet customer requirements. Summary of the Invention

[0005] The purpose of this invention is to provide a shake-stabilizing motor that solves the technical problem in the prior art where, due to structural reasons and sensor sensitivity limitations, the actual maximum unidirectional movement range is less than the design range, thus failing to meet customer requirements.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A shake-stabilizing motor includes a base, a sliding disk, and a coil assembly. The sliding disk is mounted above the base, and the coil assembly is sleeved around the sliding disk.

[0008] The base includes a base plate and a plurality of fixing posts protruding from the edge of the base plate;

[0009] The coil assembly includes a square frame with a wall panel in each of the four directions: front, back, left, and right. A coil is installed on each wall panel. The square frame is mounted on several fixed posts.

[0010] The sliding disk has a circular hole in the middle for mounting the lens. The sliding disk has a side wall in each of the four directions: front, back, left, and right. An electromagnet assembly is installed on each side wall. Several ball grooves are set on the outer periphery of the circular hole and on the bottom surface of the sliding disk, and balls are installed in the ball grooves.

[0011] The feature is that: through holes are provided at the four corners of the base plate, and a lower hook extends out of the inner wall of the through hole; a column is provided at the four corners of the sliding plate, and an upper hook is provided at the top of the outer side of the column; one end of the spring is hung on the upper hook and the other end is hung on the lower hook; the tension of the spring is used to keep the sliding plate close to the base plate; and the ball bearings on the bottom surface of the sliding plate are supported on the base plate.

[0012] Each electromagnet assembly on the side wall is magnetically coupled to a coil on the corresponding wall panel; by energizing the coil, a pushing and pulling force is generated between the coil and the electromagnet assembly, allowing the sliding disk to move along the front, back, left, and right directions on the base plate to achieve image stabilization.

[0013] Preferably, a cover plate is installed on top of the coil assembly.

[0014] Preferably, the connector on the coil assembly protrudes from the base plate.

[0015] Preferably, a fixing post protrudes from each of the four corners of the base plate edge.

[0016] Preferably, the electromagnet assembly includes an iron plate support and a magnet, with the magnet mounted on the iron plate support.

[0017] The aforementioned quadrilateral frame includes a flexible PCB board.

[0018] Compared with the prior art, this utility model has the following advantages:

[0019] Effect 1: This utility model includes a base, a sliding disk, and a coil assembly. The sliding disk is installed on top of the base, and the coil assembly is sleeved around the sliding disk. Through holes are provided at the four corners of the base plate, and lower hooks extend from the inner walls of the through holes. Columns are provided at the four corners of the sliding disk, and upper hooks are provided on the top outer sides of the columns. One end of a spring is hung on the upper hook, and the other end is hung on the lower hook. The tension of the spring keeps the sliding disk close to the base plate. Ball bearings on the bottom surface of the sliding disk support the base plate. With this new structural design, the gap between the sliding disk and the coil assembly can be large enough, and the maximum unidirectional movement distance of the sliding disk can meet customer requirements. After testing, the maximum unidirectional movement distance of the sliding disk reaches 1.3mm, which negligibly reduces the influence of sensor sensitivity and meets the requirement of a maximum unidirectional movement distance of 1.1mm.

[0020] Other advantages of this invention are described in detail in the Embodiments section. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention from one angle;

[0022] Figure 2 This is an exploded view of the present invention;

[0023] Figure 3 This is a perspective view of the concealed cover plate and coil assembly of this utility model;

[0024] Figure 4 for Figure 3 A magnified view of part A;

[0025] Figure 5 for Figure 3 Exploded view;

[0026] Figure 6 This is a perspective view of the sliding disk of this utility model;

[0027] Figure 7 This is an exploded view of the sliding disk of this utility model;

[0028] Figure 8 This is a top view of the present invention;

[0029] Figure 9 yes Figure 8 BB section view;

[0030] Figure 10 yes Figure 8 CC section view;

[0031] Figure 11 yes Figure 9 DD sectional view;

[0032] Figure 12 This is a diagram showing the usage state of this utility model. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] Example 1:

[0035] like Figures 1 to 12 As shown, this embodiment provides a shake-stabilizing motor, including a base 3, a sliding disk 1, and a coil assembly 2. The sliding disk 1 is mounted above the base 3, and the coil assembly 2 is sleeved around the sliding disk 1, wherein:

[0036] The base 3 includes a base plate 31 and a plurality of fixing posts 32 protruding from the edge of the base plate 31;

[0037] The coil assembly 2 includes a square frame 20, with a wall panel 21 in each of the four directions of front, back, left and right. A coil 22 is set on each wall panel 21. The square frame 20 is fitted onto several fixed posts 32.

[0038] The sliding disk 1 has a circular hole 10 in the middle for mounting the lens 6. The sliding disk 1 has a side wall 11 in the front, back, left and right directions. An electromagnet assembly 12 is installed on each side wall 11. Several ball grooves 131 are provided on the bottom surface 13 of the sliding disk 1 around the circular hole 10. Balls 7 are installed in the ball grooves 131.

[0039] The feature is that: through holes 34 are respectively provided at the four corners of the base plate 31, and a lower hook 33 extends out from the inner wall of the through hole 34; a column 14 is provided at the four corners of the sliding plate 1, and an upper hook 15 is provided on the top of the outer side of the column 14; one end of the spring 5 is hung on the upper hook 15, and the other end is hung on the lower hook 33; the tension of the spring 5 makes the sliding plate 1 always close to the base plate 31; and the ball bearing 7 on the bottom surface 13 of the sliding plate 1 is supported on the base plate 31.

[0040] Each sidewall 11 has an electromagnet assembly 12 magnetically coupled to a coil 22 on a corresponding wall panel 21. By energizing the coil 22, a pushing and pulling force is generated between the coil 22 and the electromagnet assembly 12, the sliding disk 1 can move along the front, back, left, and right directions on the base plate 31 to achieve image stabilization.

[0041] The working principle of this invention is as follows: Under the action of four springs 5, the sliding disk 1 is always kept close to the base plate 31. The ball bearings 7 on the bottom surface 13 of the sliding disk 1 are supported on the base plate 31. The function of the ball bearings 7 is to reduce friction when the sliding disk 1 moves on the base plate 31. When the four coils 22 are energized, the magnitude and direction of the current are controlled, so that each coil 22 and its corresponding electromagnet assembly 12 generate mutually repulsive pushing forces or mutually attractive pulling forces, allowing the sliding disk 1 to move on the base plate 31 in the forward, backward, left, and right directions to achieve the purpose of image stabilization.

[0042] Advantages of this utility model: Through structural improvement, through holes 34 are respectively provided at the four corners of the base plate 31, and lower hooks 33 extend from the inner wall of the through holes 34; columns 14 are provided at the four corners of the sliding disk 1, and upper hooks 15 are provided on the top of the outer side of the columns 14; one end of the spring 5 is hung on the upper hook 15, and the other end is hung on the lower hook 33. The tension of the spring 5 keeps the sliding disk 1 always close to the base plate 31, and the ball bearings 7 on the bottom surface 13 of the sliding disk 1 are supported on the base plate 31; the gap between the sliding disk 1 and the coil assembly 2 can be reserved to be large enough, and the maximum unidirectional movement distance of the sliding disk can meet the customer's requirements. After testing, the maximum unidirectional movement distance of the sliding disk reaches 1.3mm, which can ignore the influence of the sensor's sensitivity and meets the requirement that the maximum unidirectional movement distance of the sliding disk reaches 1.1mm.

[0043] Preferably, a cover plate 4 is installed on the top of the coil assembly 2, which improves aesthetics and overall appearance.

[0044] Preferably, the connector 16 on the coil assembly 2 protrudes from the base plate 31, facilitating connection with the drive circuit board and energizing the four coils 22.

[0045] Preferably, a fixing post 32 protrudes from each of the four corners of the edge of the base plate 31, which is reasonable in layout and simple in structure.

[0046] Preferably, the electromagnet assembly 12 includes an iron plate support 121 and a magnet 122, with the magnet 122 mounted on the iron plate support 121, resulting in a reasonable and simple structure.

[0047] Preferably, the quadrilateral frame 20 includes a flexible PCB board.

[0048] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited thereto. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model are equivalent substitutions and are included within the protection scope of the present utility model.

Claims

1. A shake-stabilizing motor, comprising a base (3), a sliding disk (1), and a coil assembly (2), wherein the sliding disk (1) is mounted above the base (3), and the coil assembly (2) is sleeved around the sliding disk (1), wherein: The base (3) includes a base plate (31) and a plurality of fixing posts (32) protruding from the edge of the base plate (31). The coil assembly (2) includes a square frame (20), with a wall panel (21) in each of the four directions of front, back, left and right. A coil (22) is set on each wall panel (21). The square frame (20) is fitted onto several fixed posts (32). The sliding disk (1) has a circular hole (10) in the middle for mounting the lens (6). The sliding disk (1) has a side wall (11) in the front, back, left and right directions. An electromagnet assembly (12) is installed on each side wall (11). Several ball grooves (131) are provided on the outer periphery of the circular hole (10) and on the bottom surface (13) of the sliding disk (1). Balls (7) are installed in the ball grooves (131). The feature is that: through holes (34) are provided at the four corners of the base plate (31), and a lower hook (33) extends out from the inner wall of the through hole (34); a column (14) is provided at the four corners of the sliding plate (1), and an upper hook (15) is provided at the top of the outer side of the column (14); one end of the spring (5) is hung on the upper hook (15), and the other end is hung on the lower hook (33); the tension of the spring (5) makes the sliding plate (1) always close to the base plate (31); the ball (7) on the bottom surface (13) of the sliding plate (1) is supported on the base plate (31); The electromagnet assembly (12) on each side wall (11) is magnetically coupled to the coil (22) on the corresponding wall plate (21); by energizing the coil (22) and generating a mutual pushing and pulling force with the electromagnet assembly (12), the sliding disk (1) can move on the base plate (31) in the front, back, left and right directions to achieve the purpose of image stabilization.

2. The anti-shake motor according to claim 1, characterized in that: A cover plate (4) is installed on top of the coil assembly (2).

3. A vibration stabilization motor according to claim 1 or 2, characterized in that: The connector (16) on the coil assembly (2) protrudes from the base plate (31).

4. A shake-stabilizing motor according to claim 3, characterized in that: A fixing post (32) protrudes from each of the four corners of the edge of the base plate (31).

5. A shake-stabilizing motor according to claim 4, characterized in that: The electromagnet assembly (12) includes an iron plate bracket (121) and a magnet (122), with the magnet (122) mounted on the iron plate bracket (121).

6. A shake-stabilizing motor according to claim 4, characterized in that: The square frame (20) includes a flexible PCB board.

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