A low optical axis compensation structure and a motor

Abstract

The present invention discloses a low optical axis compensation structure and a motor. The low optical axis compensation structure includes: a chip; a carrier, with a left winding coil and a right winding coil respectively provided on the left and right sides of the carrier, and the left winding coil and the right winding coil are independently connected to the chip; a Hall magnet, arranged between the left winding coil and the right winding coil, and the Hall magnet is located above the carrier; an angular magnetic field change detection unit, arranged below the Hall magnet, and the angular magnetic field change detection unit is used to detect the change of the angular magnetic field of the carrier. In the present invention, when the angular magnetic field change detection unit below the Hall magnet senses the change of the angular position of the carrier, the angular magnetic field change detection unit transmits the signal of the angular position change to the chip, and the chip balances the change of the angle by controlling the change of the current magnitude of the left winding coil or the right winding coil, thereby achieving the optimal optical axis. The present invention also has the advantages of high detection accuracy, simple and convenient adjustment, etc.

Description

Technical Field

[0001] The present invention relates to the technical fields of low optical axis compensation structures and motors. Background Art

[0002] In the prior art, after the carrier angle of a general motor changes, the specific angle position change cannot be sensed, nor can the angle change of the carrier be balanced, resulting in the inability to achieve the optimal optical axis. Summary of the Invention

[0003] The present invention mainly solves the technical problems existing in the prior art, and thus provides a low optical axis compensation structure and a motor that can sense the angle change of the carrier and balance the angle change.

[0004] The above technical problems of the present invention are mainly solved by the following technical solutions:

[0005] The low optical axis compensation structure provided by the present invention includes:

[0006] A chip;

[0007] A carrier, with a left winding coil and a right winding coil respectively arranged on the left and right sides of the carrier, and the left winding coil and the right winding coil are respectively and independently connected to the chip;

[0008] A Hall magnet, arranged between the left winding coil and the right winding coil, and the Hall magnet is located above the carrier;

[0009] An angle magnetic field change detection unit, arranged below the Hall magnet, and the angle magnetic field change detection unit is used to detect the change of the carrier angle magnetic field;

[0010] When the angle magnetic field change detection unit detects that the carrier angle exceeds the set range, the angle magnetic field change detection unit sends a signal to the chip, and the chip balances the carrier angle by controlling the current of the left winding coil or the right winding coil.

[0011] Further, AF magnets are respectively arranged on the left and right sides of the carrier, and the left winding coil and the right winding coil are respectively arranged on the relative inner sides of the AF magnets.

[0012] Further, the chip is installed on a flexible circuit board, and a capacitor is also arranged on the flexible circuit board.

[0013] Further, the angle magnetic field change detection unit is a TMR magnetic sensor.

[0014] Further, an upper elastic sheet and a lower elastic sheet are respectively arranged on the front and back sides of the carrier.

[0015] Further, the left winding coil and the right winding coil have the same structure and are both in a long annular shape.

[0016] The motor of the present invention includes the above-mentioned low optical axis compensation structure, a housing, and a base. The housing and the base cooperate with each other, and the low optical axis compensation structure is disposed between the housing and the base.

[0017] The beneficial effects of the present invention are as follows: By respectively providing a left winding coil and a right winding coil on the left and right sides of the carrier, the chip independently supplies power to the left winding coil and the right winding coil. When the angle magnetic field change detection unit below the Hall magnet senses the change in the angle position of the carrier, the angle magnetic field change detection unit transmits the signal of the angle position change to the chip. The chip balances the change in the angle by controlling the current of the left winding coil or the right winding coil, thereby achieving the optimal optical axis, that is, achieving a low optical axis. At the same time, the present invention also has the advantages of high detection accuracy, simple and convenient adjustment, and wide application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 is a schematic structural diagram of the low optical axis compensation structure of the present invention;

[0020] Figure 2 is a distribution position diagram of the left winding coil and the right winding coil of the low optical axis compensation structure of the present invention;

[0021] Figure 3 is an exploded view of the motor of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will elaborate on the preferred embodiments of the present invention in conjunction with the drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0023] Refer to Figures 1 - 3 As shown, the low optical axis compensation structure of the present invention includes:

[0024] Chip 1;

[0025] Carrier 2, with a left winding coil 21 and a right winding coil 22 respectively arranged on the left and right sides of the carrier 2. The left winding coil 21 and the right winding coil 22 are respectively and independently connected to the chip 1. In the present invention, the chip 1 can independently control the change in the magnitude of the current in the left winding coil 21 or the right winding coil 22, so as to adjust the magnetic field intensity on the left and right sides of the carrier 2, thereby balancing the angular change of the carrier 2 under the action of magnetic force, enabling the carrier 2 to reach the optimal optical axis, that is, to reach a low optical axis.

[0026] Hall magnet 3, arranged between the left winding coil 21 and the right winding coil 22, and the Hall magnet 3 is located on the upper part of the carrier 2;

[0027] Angle magnetic field change detection unit 4, arranged below the Hall magnet 3. The angle magnetic field change detection unit 4 is used to detect the change in the angle magnetic field of the carrier 2. Preferably, the angle magnetic field change detection unit 4 is a TMR magnetic sensor. In the present invention, the tunneling magnetoresistance effect of the TMR magnetic sensor 4 can be used to sense the change in the angle magnetic field of the carrier 2.

[0028] When the angle magnetic field change detection unit 4 detects that the angle of the carrier 2 exceeds the set range, the angle magnetic field change detection unit 4 sends a signal to the chip 1, and the chip 1 balances the angle of the carrier 2 by controlling the current in the left winding coil 21 or the right winding coil 22.

[0029] In the present invention, a left winding coil 21 and a right winding coil 22 are respectively arranged on the left and right sides of the carrier 2. The chip 1 independently supplies power to the left winding coil 21 and the right winding coil 22. When the angle magnetic field change detection unit 4 below the Hall magnet 3 senses the change in the angular position of the carrier 2, the angle magnetic field change detection unit 4 transmits the signal of the angular position change to the chip 1. The chip 1 controls the change in the magnitude of the current in the left winding coil 21 or the right winding coil 22 to balance the angular change, and then reaches the optimal optical axis, that is, reaches a low optical axis. At the same time, the present invention also has the advantages of high detection accuracy, simple and convenient adjustment, wide application range, etc.

[0030] Preferably, the chip 1 is installed on a flexible circuit board 6, and a capacitor 7 is also arranged on the flexible circuit board 6.

[0031] Preferably, AF magnets 5 are respectively arranged on the left and right sides of the carrier 2, and the left winding coil 21 and the right winding coil 22 are respectively arranged on the relative inner sides of the AF magnets 5. In the present invention, when the angle magnetic field change detection unit 4 senses the change in the angular position of the carrier 2, the chip 1 independently controls the change in the magnitude of the current in the left winding coil 21 or the right winding coil 22, so as to adjust the magnetic field intensity on the left and right sides of the carrier 2, and can balance the angular change of the carrier 2 under the action of the AF magnets 5.

[0032] In the present invention, an upper elastic sheet 8 and a lower elastic sheet 9 are respectively arranged on the front and rear sides of the carrier 2.

[0033] Preferably, the left-side winding coil 21 and the right-side winding coil 22 have the same structure and are both long ring-shaped.

[0034] See also Figure 3 As shown, the motor of the present invention includes the above-mentioned low optical axis compensation structure, a shell 10 and a base 11. The shell 10 and the base 11 cooperate with each other, and the low optical axis compensation structure is arranged between the shell 10 and the base 11, so as to protect the low optical axis compensation structure and extend the overall service life of the motor.

[0035] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined in the claims.

Claims

1. A low optical axis compensation structure, characterized in that, Comprising: A chip; A carrier, with a left winding coil and a right winding coil respectively arranged on the left and right sides of the carrier, and the left winding coil and the right winding coil are respectively and independently connected to the chip; A Hall magnet, arranged between the left winding coil and the right winding coil, and the Hall magnet is located at the upper part of the carrier; An angular magnetic field change detection unit, arranged below the Hall magnet, and the angular magnetic field change detection unit is used to detect the change of the angular magnetic field of the carrier; When the angular magnetic field change detection unit detects that the angle of the carrier exceeds the set range, the angular magnetic field change detection unit sends a signal to the chip, and the chip balances the angle of the carrier by controlling the current of the left winding coil or the right winding coil; AF magnets are respectively arranged on the left and right sides of the carrier, and the left winding coil and the right winding coil are respectively arranged on the relative inner sides of the AF magnets; The left winding coil and the right winding coil have the same structure and are both in a long ring shape; the cross-sectional area of the AF magnet is larger than the cross-sectional areas of the left winding coil and the right winding coil.

2. The low optical axis compensation structure according to claim 1, wherein The chip is installed on a flexible circuit board, and a capacitor is also arranged on the flexible circuit board.

3. The low optical axis compensation structure according to claim 2, characterized in that, The angular magnetic field change detection unit is a TMR magnetic sensor.

4. The low optical axis compensation structure according to claim 3, wherein Upper elastic pieces and lower elastic pieces are respectively arranged on the front and rear sides of the carrier.

5. A motor, characterized in that, Comprising the low optical axis compensation structure, the housing and the base according to any one of claims 1-4, the housing and the base are matched with each other, and the low optical axis compensation structure is arranged between the housing and the base.

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