CN120812399A

CN120812399A - Horizontal moving device

Info

Publication number: CN120812399A
Application number: CN202511275880.8A
Authority: CN
Inventors: 杨银烁; 汪仁德; 彭坤; 林聪�; 刘富泉; 吕新科
Original assignee: Henan Haoze Electronics Co ltd Kunshan Branch
Current assignee: Henan Haoze Electronics Co ltd Kunshan Branch
Priority date: 2025-09-08
Filing date: 2025-09-08
Publication date: 2025-10-17

Abstract

The invention belongs to the technical field of optical imaging equipment, and particularly relates to a horizontal moving device which comprises a base, a piece to be moved and a piezoelectric mechanism, wherein the piece to be moved is arranged in the base, the piezoelectric mechanism comprises a deformation block, one end of the deformation block in a first direction is connected with the bottom end of the base, the other end of the deformation block in the first direction is abutted with the bottom end of the piece to be moved, and the deformation block is a deformation block which can generate bending deformation along a second direction perpendicular to the first direction when the introduced current changes, so that the piece to be moved is driven to move along the second direction through the deformation block. According to the invention, the deformation block capable of realizing bending deformation in the second direction when current is introduced for changing drives the to-be-moved member to move in the second direction, so that the purpose of stably moving the to-be-moved member to one side can be realized in a limited space.

Description

Horizontal moving device

Technical Field

The invention belongs to the technical field of optical image equipment, and particularly relates to a horizontal moving device.

Background

With the development of technology, many electronic devices (such as smart phones or digital cameras) have photographing or video recording functions. The use of these electronic devices is becoming more and more popular and is evolving towards a convenient and light-weight design that provides more options for the user.

Some electronic devices with photographing or video recording function are provided with a lens driving device to drive an optical component such as a lens to move so as to achieve an auto focus (auto focus) function. The light can be imaged through the optical assembly onto the photosensitive assembly.

Most of the prior art implements optical zoom and/or optical anti-shake functions by movement of a member to be moved (e.g., a carrier). Therefore, a moving mechanism that can realize stable and reliable movement of the member to be moved is a positive consideration for those skilled in the art.

Disclosure of Invention

The present invention is directed to the above-mentioned technical problems, and an object of the present invention is to provide a horizontal movement device.

A horizontal movement device comprising:

A base;

the to-be-moved piece is arranged in the base;

The piezoelectric mechanism comprises a deformation block, one end of the deformation block in the first direction is connected with the bottom end of the base, the other end of the deformation block in the first direction is abutted to the bottom end of the to-be-moved member, and the deformation block is a deformation block which can generate bending deformation along the second direction perpendicular to the first direction when the introduced current changes, so that the to-be-moved member is driven to move along the second direction through the deformation block.

Optionally, the piezoelectric mechanism further includes an abutment block, the other end of the deformation block in the first direction is connected with one end of the abutment block, and the other end of the abutment block abuts against the bottom end of the to-be-moved member, so that the deformation block abuts against the bottom end of the to-be-moved member through the abutment block.

Optionally, the base bottom is provided with the base butt arch, wait to remove the piece bottom and be provided with moving member butt arch, the first direction one end of deformation piece with base butt arch is connected, the first direction other end of deformation piece directly or through the butt piece with moving member butt arch butt.

Optionally, an energizing point is provided on the end surface of the base abutting protrusion connected with the deformation block, the deformation block is in contact with the energizing point, the energizing point is connected with a base built-in circuit in the base, and the base built-in circuit supplies power to the deformation block through the energizing point.

Optionally, the member to be moved is a carrier or a substrate.

Optionally, the horizontal moving device further comprises:

The pressing mechanism is respectively connected with the to-be-moved piece and the base, and the to-be-moved piece is abutted to the piezoelectric mechanism through the pressing mechanism and reset after moving along the second direction is achieved.

Optionally, the pressing mechanism adopts one or a combination of a plurality of reed, embedded elastic piece and rubber elastic piece.

Optionally, one or a plurality of top bosses are arranged at the top end of the base, the pressing mechanism adopts reeds, the number of the reeds is the same as that of the top bosses, one end of each reed is connected with a corresponding top boss, and the other end of each reed is connected with the top end of the piece to be moved.

Optionally, the number of the top bosses is two, and the two top bosses are arranged on one side of the top end of the base and close to the second direction of the deformation block.

Optionally, the horizontal moving device further comprises:

the friction reducing mechanisms are respectively arranged between the outer side wall of the to-be-moved piece and the inner side wall of the base, and are used for reducing friction force between the to-be-moved piece and the base during relative movement.

Optionally, the friction reducing mechanism employs a combination of one or more of balls, rollers, and guide shafts.

Optionally, the horizontal moving device further comprises:

the position sensor is arranged on the base;

The induction magnet is arranged at the bottom end of the to-be-moved part, the induction magnet is arranged opposite to the position sensor, and the position of the to-be-moved part is monitored through the cooperation of the induction magnet and the position sensor.

Optionally, the position sensor is powered by a base built-in wiring within the base.

The invention has at least one or more of the following advantages:

1. According to the invention, the deformation block capable of realizing bending deformation in the second direction when current is introduced for changing drives the to-be-moved member to move in the second direction, so that the purpose of stably moving the to-be-moved member to one side can be realized in a limited space.

2. The invention can provide elastic tension force for the part to be moved and the base through the pressing mechanism, so that the abutting compactness between the deformation block/abutting block and the part to be moved is higher, and meanwhile, when the part to be moved moves in the second direction, such as AF zooming operation, the pressing mechanism can assist the part to be moved to perform resetting operation, thereby achieving the technical effects of assisting resetting and preventing the part to be moved from twisting.

3. The invention guides by reducing the friction mechanism and reduces the friction force between the to-be-moved piece and the base during relative movement.

4. The invention realizes the monitoring of the position of the to-be-moved part through the cooperation of the position sensor and the induction magnet, has an auxiliary effect on automatic focusing or automatic anti-shake, and realizes the purpose of closed-loop control.

Drawings

FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a diagram showing the positional relationship between the base and the piezoelectric mechanism in embodiment 1 of the present invention;

fig. 4 is a diagram showing a positional relationship between a member to be moved and a piezoelectric mechanism in embodiment 1 of the present invention;

FIG. 5 is an exploded view of FIG. 4;

FIG. 6 is a schematic diagram of the operation of the piezoelectric mechanism of the present invention;

FIG. 7 is a schematic view of a piezoelectric mechanism of the present invention driving a member to be moved;

FIG. 8 is a diagram showing a positional relationship among the base, the member to be moved and the spring in embodiment 1;

FIG. 9 is a diagram showing a positional relationship among the base, the member to be moved and the balls in embodiment 1;

FIG. 10 is a diagram showing a positional relationship among the base, the member to be moved and the guide shaft in embodiment 1;

FIG. 11 is a schematic structural view of embodiment 2 of the present invention;

FIG. 12 is an exploded view of FIG. 11;

FIG. 13 is an exploded view of a portion of the structure of FIG. 12;

Fig. 14 is a schematic diagram of a power supply circuit in embodiment 2 of the present invention;

FIG. 15 is a diagram showing the positional relationship between the object to be moved and the piezoelectric mechanism and the induction magnets in embodiment 2;

fig. 16 is a diagram showing a positional relationship between a member to be moved and an induction magnet in embodiment 2.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the attached drawings, so that the objects, features and advantages of the present invention will be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the invention, but rather are merely illustrative of the true spirit of the invention.

In the following description, for the purposes of explanation of various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that an embodiment may be practiced without one or more of the specific details. In other instances, well-known devices, structures, and techniques associated with the present application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the following description, for the purposes of clarity of presentation of the structure and manner of operation of the present invention, the description will be made with the aid of directional terms, but such terms as "forward," "rearward," "left," "right," "outward," "inner," "outward," "inward," "upper," "lower," etc. are to be construed as convenience, and are not to be limiting.

Example 1:

Referring to fig. 1 to 5, the present embodiment provides a horizontal moving apparatus that can realize movement of a member to be moved in a second direction. When the horizontal movement device is used in a lens driving device, a piece to be moved is a carrier, and the horizontal movement device can realize AF zooming operation of a lens mounted on the carrier as a carrier movement mechanism.

Of course, the horizontal movement device can also be used in other scenes where movement is required. When the device is applied to other scenes, the to-be-moved piece can be a substrate, and can also be other to-be-moved pieces needing to be moved.

The horizontal moving device of the present embodiment includes a base 10, a carrier 20, and a piezoelectric mechanism 30. Wherein the piezoelectric mechanism 30 comprises a deformation block 31.

As shown in fig. 1, when the first direction is the X-axis direction, the second direction is the Y-axis direction, and the X-axis direction and the Y-axis direction are both horizontal directions parallel to the inner bottom surface of the base 10, the carrier 20 can move in the Y-axis direction in the base 10.

Referring to fig. 3 and 4, the base 10 is provided at the bottom end with a base abutment projection 11, the carrier 20 is provided at the bottom end with a moving member abutment projection 21, and the piezoelectric mechanism 30 further includes an abutment block 32. One end of the deformation block 31 in the X-axis direction is connected to the base abutment projection 11, the other end of the deformation block 31 in the X-axis direction is connected to one end of the abutment block 32, and the other end of the abutment block 32 abuts against the moving-member abutment projection 21. The deformation block 31 is a deformation block 31 which generates bending deformation along the Y-axis direction when the current is changed, so that the deformation block 31 drives the carrier 20 to move along the Y-axis direction, and further the AF zoom operation of the lens on the carrier is realized.

As shown in fig. 6 and 7, the deformation block 31 used in the present embodiment has a length direction along the X-axis direction, and is deformed to bend along the Y-axis direction when the current applied thereto changes, so that an S-shaped wave is formed, and the abutment block 32 and the carrier 20 can be moved in the Y-axis direction by the S-shaped wave, thereby realizing the movement of the carrier. Of course, when the piezoelectric mechanism is designed, the piezoelectric mechanism can be operated in the X-axis direction or the Z-axis direction by changing the direction of the deformation block 31. Wherein the Z-axis direction is a direction perpendicular to the X-axis direction and the Y-axis direction, respectively.

In the present embodiment, the shape and the material of the deformation block 31 and the abutment block 32 are not limited, as long as the shape and the material of the deformation block 31 can be realized such that bending deformation along the Y-axis direction occurs when the current applied to the deformation block 31 changes, thereby driving the abutment block 32 and the carrier 20 to move in the Y-axis direction.

For example, the deformation block 31 employs a piezoelectric material (Piezo), which generally employs a structure in which two piezoelectric ceramic (PZT) sheets having opposite polarization directions are sandwiched by a metal or carbon fiber sheet, by applying a voltage to the deformation block, so that one piezoelectric ceramic sheet in the deformation block is elongated and the other piezoelectric ceramic sheet is shortened, resulting in the deformation block being bent like a "metal-ceramic sandwich". It has the advantages of quick response, large force and high frequency.

In the present embodiment, one end of the deformation block 31 in the X axis direction may be directly connected to the bottom end of the base 10 instead of being connected to the base abutment protrusion 11, and the base abutment protrusion 11 is not provided in the base 10, but it is needless to say that the base abutment protrusion 11 may be a part of the base 10. The other end of the deformation block 31 in the X-axis direction may be directly abutted against the movable member abutment projection 21, instead of being connected to the abutment block 32, or directly abutted against the bottom end of the carrier 20, and in this case, the piezoelectric mechanism does not include the deformation block 31 or the bottom end of the carrier 20 is not provided with the movable member abutment projection 21, but it is needless to say that the movable member abutment projection 21 may be a part of the bottom end of the carrier 20.

In an embodiment, the horizontal moving device of the present embodiment further includes a pressing mechanism, where the pressing mechanism is respectively connected to the carrier 20 and the base 10, and the carrier 20 is abutted to the piezoelectric mechanism 30 by the pressing mechanism and is reset after moving along the second direction.

The invention can provide elastic tension between the carrier 20 and the base 10 through the pressing mechanism, so that the abutting compactness between the deformation block 31/the abutting block 32 and the carrier 20 is higher, and meanwhile, when the carrier 20 moves in the second direction, such as AF zooming operation, the pressing mechanism can also assist the carrier 20 to perform resetting operation, thereby achieving the technical effects of assisting resetting and preventing the carrier 20 from twisting.

In one embodiment, the hold down mechanism includes, but is not limited to, a combination of one or more of a reed, a pre-buried spring, and a rubber spring.

In an embodiment, referring to fig. 1, 2 and 8, one or a plurality of top bosses 12 are arranged at the top end of the base 10, the pressing mechanism adopts the spring leaves 40, the number of the spring leaves 40 is the same as that of the top bosses 12, one end of each spring leaf 40 is connected with a corresponding top boss 12, and the other end of each spring leaf 40 is connected with the top end of the carrier 20.

The arrow shown in fig. 8 indicates that a pulling force directed to the right is generated by the reed 40 so that the carrier 20 can be firmly abutted with the abutment block 32.

The number of tabs 40 and top bosses 12 may be sized according to the dimensions of the base 10 and carrier 20 to ensure that the carrier 20 can be held tightly against the base 10 by the tabs 40.

In an embodiment, referring to fig. 1 and 2, the number of top bosses 12 is two, and the two top bosses 12 are arranged side by side on the top end side of the base 10 in the Y-axis direction near the deformation block 31.

One side of the carrier 20 preferably has a protrusion located between the two top bosses 12 such that the two top bosses 12 effect a limit stop for the carrier 20.

In an embodiment, the horizontal moving device further comprises friction reducing mechanisms respectively arranged between the outer side wall of the carrier 20 and the inner side wall of the base 10, and the friction reducing mechanisms are used for reducing friction force between the carrier 20 and the base 10 during relative movement.

In one embodiment, the friction reducing mechanism includes, but is not limited to, a combination of one or more of balls, rollers, and guide shafts.

Referring to fig. 9, in the friction reducing mechanism, balls 61 are adopted, and in a specific implementation, one or more ball grooves may be formed on the outer side wall of the carrier 20 and the inner side wall of the base 10, and when a plurality of ball grooves are formed, the plurality of ball grooves are preferably arranged side by side along the Z-axis direction, the ball grooves between the outer side wall of the carrier 20 and the inner side wall of the base 10 are arranged opposite to each other, and one or more balls 61 are mounted, and the balls 61 are engaged in the ball grooves in a rolling manner to reduce friction. The number of the ball grooves and the balls 61 is not limited, and may be set according to actual conditions.

Referring to fig. 10, the friction reducing mechanism adopts a guide shaft 62, and a guide groove can be formed on the outer side wall of the carrier 20 and the inner side wall of the base 10, the guide groove between the outer side wall of the carrier 20 and the inner side wall of the base 10 is opposite to each other, and the guide shaft 62 is mounted, and the guide shaft 62 is engaged in the guide groove in a rolling manner to reduce friction.

In an embodiment, the horizontal moving device of the embodiment further includes a housing, wherein the housing is detachably connected with the base to form a hollow cavity, and the to-be-moved member, the piezoelectric mechanism, the pressing mechanism and the friction reducing mechanism are all disposed in the hollow cavity. The detachable connection of the housing to the base 10 is preferably a snap-fit connection.

Example 2:

Referring to fig. 11 to 16, the present embodiment provides a horizontal moving apparatus that can realize movement of a member to be moved in a second direction. The present embodiment is the same as embodiment 1 except that the following structure is different from embodiment 1, and the description thereof is omitted.

In the present embodiment, the horizontal movement device further includes a position monitoring mechanism including a position sensor 51 and an induction magnet 52.

The position sensor 51 is provided on the base 10. Specifically, a sensor mounting groove 13 may be provided at the inner bottom end of the base 10, and the position sensor 51 is mounted in the sensor mounting groove 13.

The induction magnet 52 is arranged at the bottom end of the carrier 20, the induction magnet 52 is arranged opposite to the position sensor 51, the position of the carrier 20 is monitored through the cooperation of the induction magnet 52 and the position sensor 51, an auxiliary effect is achieved on automatic focusing or automatic anti-shake, and the purpose of closed loop control is achieved. Specifically, a magnet mounting groove may be provided at the bottom end of the carrier 20, and the induction magnet 52 is mounted in the magnet mounting groove.

In one embodiment, referring to fig. 14, the position sensor 51 is powered by the base built-in wiring 14 within the base 10.

In an embodiment, referring to fig. 13 and 14, an energizing point 15 is provided on one side end surface of the base abutment protrusion 11, the one side end surface of the base abutment protrusion 11 is an end surface where the base abutment protrusion 11 is connected to the deformation block 31, and when the deformation block 31 is connected to the one side end surface of the base abutment protrusion 11, the deformation block 31 is in contact with the energizing point 15, the energizing point 15 is connected to the base built-in line 14 in the base 10, and the base built-in line 14 supplies power to the deformation block 31 through the energizing point 15.

While the preferred embodiments of the present application have been described in detail, it will be appreciated that those skilled in the art, upon reading the above teachings, may make various changes and modifications to the application. Such equivalents are also intended to fall within the scope of the application as defined by the following claims.

Claims

1. A horizontal moving device, characterized in that the horizontal moving device comprises:

base;

a part to be moved, the part to be moved being arranged in the base;

A piezoelectric mechanism includes a deformation block, one end of the deformation block in the first direction is connected to the bottom end of the base, and the other end of the deformation block in the first direction is abutted against the bottom end of the movable part. The deformation block is a deformation block that will bend and deform in a second direction perpendicular to the first direction when the current applied changes, so as to drive the movable part to move in the second direction through the deformation block.

2. The horizontal moving device according to claim 1, wherein the piezoelectric mechanism further comprises an abutment block, the other end of the deformation block in the first direction is connected to one end of the abutment block, and the other end of the abutment block abuts against the bottom end of the member to be moved, so that the deformation block abuts against the bottom end of the member to be moved through the abutment block;

Alternatively, a base abutment protrusion is provided at the bottom end of the base, a moving part abutment protrusion is provided at the bottom end of the moving part, one end of the deformation block in the first direction is connected to the base abutment protrusion, and the other end of the deformation block in the first direction abuts against the moving part abutment protrusion directly or through an abutment block.

3. The horizontal moving device as described in claim 2 is characterized in that a power-on point is provided on the end face of the base abutting protrusion connected to the deformation block, the deformation block contacts the power-on point, the power-on point is connected to the base built-in circuit in the base, and the base built-in circuit supplies power to the deformation block through the power-on point.

4 . The horizontal moving device according to claim 1 , wherein the part to be moved is a carrier or a substrate.

5. The horizontal moving device according to claim 1, further comprising: a pressing mechanism, wherein the pressing mechanism is connected to the movable member and the base, respectively, and the movable member is pressed against the piezoelectric mechanism by the pressing mechanism to reset the movable member after moving in the second direction;

And/or, the horizontal moving device also includes: a friction reducing mechanism, which is respectively arranged between the outer wall of the moving part and the inner wall of the base, and is used to reduce the friction force between the moving part and the base during relative movement.

6. The horizontal moving device according to claim 5, wherein the pressing mechanism is a combination of one or more of a spring, an embedded elastic member, and a rubber elastic member;

And/or, one or several top bosses are provided at the top of the base, and the clamping mechanism includes springs, the number of the springs is the same as the number of the top bosses, one end of a single spring is connected to a corresponding top boss, and the other end of a single spring is connected to the top of the part to be moved.

7. The horizontal moving device according to claim 6, characterized in that there are two top bosses, and the two top bosses are arranged on one side of the top of the base in the second direction close to the deformation block.

8. The horizontal moving device according to claim 5, wherein the friction reducing mechanism adopts a combination of one or more of balls, rollers and guide shafts.

9. The horizontal moving device according to any one of claims 1 to 8, further comprising:

a position sensor, wherein the position sensor is arranged on the base;

The induction magnet is arranged at the bottom end of the movable part, and the induction magnet is arranged opposite to the position sensor. The position of the movable part is monitored by the cooperation of the induction magnet and the position sensor.

10. The horizontal moving device according to claim 9, wherein the position sensor is powered by a base built-in circuit in the base.