Binocular anti-shake device with low power consumption

Abstract

The utility model provides a low-power-consumption binocular anti-shake device. The low-power-consumption binocular anti-shake device comprises a control circuit board provided with a gyroscope, a fixed part and a movable part movably connected to the fixed part. A first magnetic steel assembly, a second magnetic steel assembly, a third magnetic steel assembly, a first sensing magnetic steel, a second sensing magnetic steel, a third sensing magnetic steel and two light holes are arranged on the fixing piece; the moving part is provided with a first driving coil, a second driving coil, a third driving coil, a first Hall sensor, a second Hall sensor, a third Hall sensor and two anti-shake lenses. The two anti-shake lenses can be driven to move up and down synchronously, inclination and deflection are avoided, the anti-shake precision is high, the structure is simple, and debugging is convenient. In addition, a closed magnetic circuit magnetic steel assembly with a magnet yoke is adopted, the magnetic field leakage is small, the magnetic field utilization rate is high, and the power consumption is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to binoculars anti-shake technical field, concretely points to a kind of low-power binoculars anti-shake device. BACKGROUND

[0002] When binoculars are used, even if there is slight shaking, it will also cause the field of view to shake violently, making it difficult to observe the details of the target. To this end, the applicant has proposed a patent technology with application number CN202321274705.3. This technology controls the operation of the drive coil based on the collected shaking data, which pushes the drive magnetic steel to move the moving part, thereby offsetting the impact of shaking on the field of view of the telescope. However, the applicant found that the setting method of the drive coil and the drive magnetic steel in this technology has low magnetic field utilization rate, resulting in increased electrical power consumption and reduced battery life. SUMMARY

[0003] To solve the above technical problems, the utility model provides a kind of low-power binoculars anti-shake device, its magnetic field leakage is small, and the magnetic field utilization rate is high, and electrical power consumption is significantly reduced, which can greatly extend the battery life.

[0004] The utility model realizes the following technical scheme: a kind of low-power binoculars anti-shake device, including the control circuit board being provided with gyroscope, fixed part and the movable connecting on fixed part moving part;First magnetic steel assembly, second magnetic steel assembly, third magnetic steel assembly, first sensing magnetic steel, second sensing magnetic steel, third sensing magnetic steel and two light transmission holes are provided on the fixed part;First drive coil, second drive coil, third drive coil, first hall sensor, second hall sensor, third hall sensor and two anti-shake lenses are provided on the moving part;First drive coil, second drive coil, third drive coil, first hall sensor, second hall sensor and third hall sensor are electrically connected with control circuit board.

[0005] The second and third magnet assemblies are distributed left and right, and the second and third drive coils are respectively opposite to the second and third magnet assemblies to drive the two ends of the moving part to move up and down synchronously. The lines connecting the first magnet assembly to the second and third magnet assemblies are orthogonally distributed, and the first drive coil is opposite to the first magnet assembly to drive the moving part to move left and right. The second and third sensing magnets are distributed left and right, and the second and third Hall sensors are respectively opposite to the second and third sensing magnets to detect the up and down movement signals of the moving part. The lines connecting the first sensing magnet to the second and third sensing magnets are orthogonally distributed, and the first Hall sensor is opposite to the first sensing magnet to detect the left and right movement signals of the moving part. Two image stabilization lenses are distributed left and right and are opposite to the two light-transmitting holes. The first, second, and third magnet assemblies are all magnet assemblies with magnetic yokes.

[0006] Furthermore, the first magnet assembly, the second magnet assembly, and the third magnet assembly have the same structure, and all three include a U-shaped magnetic yoke and permanent magnets disposed on one side wall or opposite side walls of the opening of the magnetic yoke.

[0007] The movable component is at least partially inserted into the openings of the first magnet assembly, the second magnet assembly, and the third magnet assembly, and the first drive coil, the second drive coil, and the third drive coil are located in the openings of the first magnet assembly, the second magnet assembly, and the third magnet assembly, respectively.

[0008] The control circuit board is mounted on a fixed component.

[0009] The movable component is connected to the fixed component via a connector.

[0010] The connecting component is a tension spring.

[0011] The moving part or the fixed part is provided with a plurality of ball grooves, and each ball groove is installed in a ball; the ball protrudes at least partially from the ball groove so that the moving part and the fixed part are isolated by the ball.

[0012] Compared with the prior art, the embodiments of this application have the following beneficial effects:

[0013] (1) This utility model adopts a closed magnetic circuit magnetic steel assembly with a magnetic yoke, which has low magnetic field leakage, high magnetic field utilization, and significantly reduced power consumption, thus greatly extending the battery's runtime.

[0014] (2) The second magnetic steel assembly and the third sensing magnetic steel are distributed on the left and right, and the second driving coil and the third driving coil are opposite to the second magnetic steel assembly and the third sensing magnetic steel respectively, so that the moving part can be driven to move up and down synchronously at the left and right ends, the inclination and deflection of the moving part are avoided, the anti-shake precision is improved, and the debugging is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application, the schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute the limitation of the present application. In the drawings, the same reference numerals represent the same components. Among them,

[0016] Figure 1 It is the structure diagram of the moving part and the fixed part after being split.

[0017] Figure 2 It is the structure diagram of the moving part and the fixed part after being assembled.

[0018] Figure 3 It is the structure diagram of the first magnetic steel assembly.

[0019] Figure 4 It is the schematic diagram of the present application applied to binoculars.

[0020] The reference numerals in the above drawings are: 1-moving part, 2-anti-shake lens, 3-first Hall sensor, 4-second driving coil, 5-first magnetic steel assembly, 51-magnetic yoke, 52-permanent magnet, 53-opening, 6-connection piece, 7-rolling ball, 8-rolling ball groove, 9-second magnetic steel assembly, 10-control circuit board, 11-third magnetic steel assembly, 12-light transmission hole, 13-fixed part, 14-second sensing magnetic steel, 15-first sensing magnetic steel, 16-third sensing magnetic steel, 17-eyepiece, 18-objective lens, 19-third driving coil, 20-first driving coil, 21-second Hall sensor, 22-third Hall sensor. DETAILED DESCRIPTION

[0021] In order to enable the persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the persons skilled in the art without creative labor should belong to the protection scope of the present application.

[0022] It should be noted that if the terms "first", "second" and the like are used in the description and claims of the present application and the above drawings, they are used to distinguish similar objects, and are not necessarily used to describe a particular sequential or chronological order. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, if the terms "comprise" and "have" and any variations thereof are used, it is intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0023] In the present application, if the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like are used, they indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0024] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0025] In addition, in the present application, if the terms "mounting", "setting", "provided with", "connecting", "connected", "sleeved" and the like are used, they should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or a monolithic structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or an internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0027] Embodiments

[0028] The present embodiment discloses a low-power consumption binocular image stabilization device, which can be applied to a binocular telescope to offset the influence of shaking on the field of view of the telescope.

[0029] Specifically, asFigure 1 、 2 As shown in FIGS. 1-3, the anti-shake device comprises a control circuit board 10 provided with a gyroscope, a fixed part 13 and a movable part 1 movably connected to the fixed part 13. The fixed part 13 is provided with a first magnetic steel assembly 5, a second magnetic steel assembly 9, a third magnetic steel assembly 11, a first sensing magnetic steel 15, a second sensing magnetic steel 14, a third sensing magnetic steel 16 and two light transmission holes 12. The movable part 1 is provided with a first drive coil 20, a second drive coil 4, a third drive coil 19, a first Hall sensor 3, a second Hall sensor 21, a third Hall sensor 22 and two anti-shake lenses 2.

[0030] In a specific arrangement, the control circuit board 10 is arranged on the fixed part 13, or the control circuit board 10 is not arranged on the fixed part 13 and can be directly installed in the housing of the telescope when in use. In this embodiment, the control circuit board 10 is installed on the fixed part 13, which facilitates the arrangement of wires and makes the installation of the anti-shake device simpler and more convenient. The first drive coil 20, the second drive coil 4, the third drive coil 19, the first Hall sensor 3, the second Hall sensor 21 and the third Hall sensor 22 can be electrically connected to the control circuit board 10 through flexible wires. The detection signals of the gyroscope, the first Hall sensor 3, the second Hall sensor 21 and the third Hall sensor 22 are transmitted to the control circuit board 10, and the control circuit board 10 controls the first drive coil 20, the second drive coil 4 and the third drive coil 19 to work to drive the movable part 1 to move according to the detection signals. The control circuit board 10 is installed with electronic devices such as a battery and a single-chip microcomputer.

[0031] Specifically, as shown in FIG. 4, the first magnetic steel assembly 5, the second magnetic steel assembly 9 and the third magnetic steel assembly 11 are arranged in a triangular shape on the fixed part 13, and the first sensing magnetic steel 15, the second sensing magnetic steel 14 and the third sensing magnetic steel 16 are arranged in a triangular shape on the movable part 1. Figure 1As shown, the second magnetic steel assembly 9 and the third magnetic steel assembly 11 are distributed on the fixing member 13, and the second driving coil 4 and the third driving coil 19 are opposite to the second magnetic steel assembly 9 and the third magnetic steel assembly 11 respectively; in this way, the second magnetic steel assembly 9, the third magnetic steel assembly 11, the second driving coil 4 and the third driving coil 19 jointly form an up-down driving mechanism, which can drive the two ends of the moving member 1 to move up and down synchronously, avoid the moving member 1 to tilt and deflect, and improve the anti-shake precision. The connection lines between the first magnetic steel assembly 5 and the second magnetic steel assembly 9 and the third magnetic steel assembly 11 are orthogonal, and the first driving coil 20 is opposite to the first magnetic steel assembly 5; in this way, the first magnetic steel assembly 5 and the first driving coil 20 jointly form a left-right driving mechanism, which can drive the moving member 1 to move left and right. The second sensing magnetic steel 14 and the third sensing magnetic steel 16 are distributed left and right, and the second Hall sensor 21 and the third Hall sensor 22 are opposite to the second sensing magnetic steel 14 and the third sensing magnetic steel 16 respectively; in this way, the second sensing magnetic steel 14, the third sensing magnetic steel 16, the second Hall sensor 21 and the third Hall sensor 22 jointly form an up-down detection mechanism, which can detect the up-down movement signal of the moving member 1. The connection lines between the first sensing magnetic steel 15 and the second sensing magnetic steel 14 and the third sensing magnetic steel 16 are orthogonal, and the first Hall sensor 3 is opposite to the first sensing magnetic steel 15; in this way, the first sensing magnetic steel 15 and the first Hall sensor 3 jointly form a left-right detection mechanism, which can detect the left-right movement signal of the moving member 1. That is, the Hall sensor can detect the offset information between the Hall sensor and the sensing magnetic steel, and then obtain the movement information data of the moving member 1. The first sensing magnetic steel 15, the second sensing magnetic steel 14 and the third sensing magnetic steel 16 are all magnetic steels magnetized in the horizontal direction.

[0032] The two anti-shake lenses 2 are opposite to the two light transmission holes 12 respectively, and the light path can enter the two lenses 14 after passing through the two light transmission holes 2.

[0033] In the embodiment, the first magnetic steel assembly 5, the second magnetic steel assembly 9 and the third magnetic steel assembly 11 all adopt magnetic steel assemblies with magnetic yokes, and the structures of the first magnetic steel assembly 5, the second magnetic steel assembly 9 and the third magnetic steel assembly 11 are the same, all of which include a magnetic yoke 51 with an opening 53 and a permanent magnet 52 arranged on one side wall or opposite two side walls of the opening 53. In the embodiment, the permanent magnets 52 are installed on the opposite two side walls of the opening 53, so as to enhance the magnetic field strength, as shown in the figure. Figure 3

[0034] Specifically, the magnetic yoke 51 can be in the shape of U, V or other shapes with an opening. In the embodiment, the magnetic yoke 51 is set to be in the shape of U, and the two permanent magnets 52 are installed on the opposite two side walls of the opening of the U-shaped magnetic yoke 51.

[0035] ​When installed, the moving part 1 is at least partially clamped into the opening 53 of the first magnetic steel assembly 5, the second magnetic steel assembly 9 and the third magnetic steel assembly 11 respectively, and the first driving coil 20, the second driving coil 4 and the third driving coil 19 are located in the opening 53 of the first magnetic steel assembly 5, the second magnetic steel assembly 9 and the third magnetic steel assembly 11 respectively, as shown in Figure 2

[0036] Specifically, the moving part 1 is connected to the fixed part 13 through the connecting part 6, wherein the connecting part 6 can be realized by a tension spring, and when installed, the two ends of the tension spring are connected to the moving part 1 and the fixed part 13 respectively.

[0037] In addition, the moving part 1 or the fixed part 13 is provided with a plurality of ball grooves 8, and each ball groove 8 is provided with a ball 7. The diameter of the ball 7 is greater than the depth of the ball groove 8, so that after the ball 7 is installed in the ball groove 8, the ball 7 partially protrudes from the ball groove 8, thereby isolating the moving part 1 from the fixed part 13, so that the moving part 1 can move more stably. At the same time, under the connection of the connecting part 6, the ball 7 will not fall out of the ball groove 8.

[0038] In order to limit the movement of the moving part 1, a limiting structure can be arranged between the moving part 1 and the fixed part 13 to limit the movement of the moving part 1, which can prevent the driving coil 4 from moving out of the opening of the magnetic steel assembly.

[0039] Specifically, the limiting structure can be a limiting bolt and a through hole provided on the moving part 1 or the fixed part 13. When the through hole is provided on the moving part 1, the limiting bolt is connected to the fixed part 13 after passing through the through hole. When the through hole is provided on the fixed part 13, the limiting bolt is connected to the moving part 1 after passing through the through hole. The diameter of the through hole is greater than the diameter of the limiting bolt, and when the moving part 1 moves horizontally, the limiting bolt moves in the through hole. If the moving range of the moving part 1 is too large, the limiting bolt will abut against the hole wall of the through hole, thereby limiting the movement of the moving part 1.

[0040] When used, the anti-shake assembly of the embodiment is installed between the objective lens 18 and the eyepiece 17 of the binocular telescope, as shown in Figure 4 ​The first driving coil 20, the second driving coil 4 and the third driving coil 19 are fixedly installed on the moving part 1, and the first sensing magnetic steel 15, the second sensing magnetic steel 14 and the third sensing magnetic steel 16 are fixedly installed on the fixed part 13. When the binoculars are in use, the moving part 1 is in a state of being fixedly installed in the shell of the binoculars, and the moving part 1 can move relative to the fixed part 13. When the binoculars are in a state of shaking, the gyroscope 5 detects the shaking information of the binoculars, and the control circuit board 10 obtains the target amount that the anti-shake lens 2 needs to move according to the shaking information. At the same time, the first Hall sensor 3, the second Hall sensor 21 and the third Hall sensor 22 detect the movement data between the first Hall sensor 3, the second Hall sensor 21 and the third Hall sensor 22 and the first sensing magnetic steel 15, the second sensing magnetic steel 14 and the third sensing magnetic steel 16, and the control circuit board 10 obtains the driving amount of the moving part 1 in the left-right direction or the up-down direction through the feedback control algorithm with the data as the feedback amount, and supplies power to the first driving coil 20, the second driving coil 4 and the third driving coil 19, so that the driving coil and the magnetic steel assembly are offset, and the moving part 1 is driven to move left and right or up and down, and the two anti-shake lenses 2 are moved, so that the shaking of the field of view of the binoculars caused by the shaking is offset, and the image stabilization function is realized.

[0041] The closed magnetic circuit magnetic steel assembly with a magnetic yoke is adopted in the embodiment, the magnetic field leakage is small, the magnetic field utilization rate is high, the electric power consumption is obviously reduced, and the endurance time of the battery can be greatly prolonged.

[0042] It should be noted that all the features disclosed in the specification, or the steps in all the disclosed methods or processes, can be combined in any manner, except for the mutually exclusive features and / or steps.

[0043] In addition, the above specific embodiments are exemplary, and those skilled in the art can think of various solutions under the inspiration of the disclosure of the utility model, and these solutions also belong to the disclosed range of the utility model and fall within the protection scope of the utility model. Those skilled in the art should understand that the specification and the drawings of the utility model are illustrative and do not constitute a limitation on the claims. The protection scope of the utility model is defined by the claims and their equivalents.

Claims

1. A low-power binocular image stabilization device, characterized by, The application relates to a control circuit board (10) provided with a gyroscope, a fixing member (13) and a movable moving member (1) connected to the fixing member (13); the fixing member (13) is provided with a first magnetic steel assembly (5), a second magnetic steel assembly (9), a third magnetic steel assembly (11), a first sensing magnetic steel (15), a second sensing magnetic steel (14), a third sensing magnetic steel (16) and two light transmission holes (12); the moving member (1) is provided with a first driving coil (20), a second driving coil (4), a third driving coil (19), a first Hall sensor (3), a second Hall sensor (21), a third Hall sensor (22) and two anti-shake lenses (2); the first driving coil (20), the second driving coil (4), the third driving coil (19), the first Hall sensor (3), the second Hall sensor (21) and the third Hall sensor (22) are electrically connected with the control circuit board (10). The second magnetic steel assembly (9) and the third magnetic steel assembly (11) are distributed left and right, the second driving coil (4) and the third driving coil (19) are opposite to the second magnetic steel assembly (9) and the third magnetic steel assembly (11) respectively, so as to drive the two ends of the moving member (1) to move up and down synchronously; the connection lines between the first magnetic steel assembly (5) and the second magnetic steel assembly (9) and the third magnetic steel assembly (11) are orthogonally distributed, the first driving coil (20) is opposite to the first magnetic steel assembly (5), so as to drive the moving member (1) to move left and right; the second sensing magnetic steel (14) and the third sensing magnetic steel (16) are distributed left and right, the second Hall sensor (21) and the third Hall sensor (22) are opposite to the second sensing magnetic steel (14) and the third sensing magnetic steel (16) respectively, so as to detect the up and down movement signals of the moving member (1); the connection lines between the first sensing magnetic steel (15) and the second sensing magnetic steel (14) and the third sensing magnetic steel (16) are orthogonally distributed, the first Hall sensor (3) is opposite to the first sensing magnetic steel (15), so as to detect the left and right movement signals of the moving member (1); the two anti-shake lenses (2) are distributed left and right and opposite to the two light transmission holes (12) one by one; the first magnetic steel assembly (5), the second magnetic steel assembly (9) and the third magnetic steel assembly (11) are all magnetic steel assemblies with magnetic yokes.

2. The low-power binocular image stabilization device of claim 1, wherein, The first magnetic steel assembly (5), the second magnetic steel assembly (9) and the third magnetic steel assembly (11) are the same in structure, all comprising a magnetic yoke (51) in the shape of U and a permanent magnet (52) arranged on one side wall or opposite two side walls of an opening (53) of the magnetic yoke (51). The moving member (1) is at least partially clamped into the openings (53) of the first magnetic steel assembly (5), the second magnetic steel assembly (9) and the third magnetic steel assembly (11) respectively, and the first driving coil (20), the second driving coil (4) and the third driving coil (19) are located in the openings (53) of the first magnetic steel assembly (5), the second magnetic steel assembly (9) and the third magnetic steel assembly (11) respectively.

3. The low-power binocular image stabilization device according to any one of claims 1 or 2, wherein The control circuit board (10) is arranged on the fixing member (13).

4. The low power binocular image stabilization device of claim 1, wherein, The moving part (1) is connected to the fixed part (13) through a connecting part (6).

5. The low-power binocular image stabilization device of claim 4, wherein, The connecting part (6) is a tension spring.

6. The low power binocular image stabilization device of claim 1, wherein, A plurality of ball grooves (8) are arranged on the moving part (1) or the fixed part (13), and a ball (7) is arranged in each ball groove (8); the ball (7) is at least partially protruded from the ball groove (8) so as to isolate the moving part (1) from the fixed part (13) through the ball (7).

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