CN217085383U - Lens driving device and base thereof - Google Patents

Abstract

The utility model discloses a camera lens drive arrangement and base thereof, this base include base body, circuit board and a plurality of shielding piece, and wherein, base body has a plurality of bights, and every angle all is equipped with the suspension wire connecting portion, and the circuit board superpose is connected in base body's top surface, and the circuit board has a plurality of breachs, and every breach is located base body's a plurality of bights respectively, and the breach is used for dodging the suspension wire. The plurality of shielding pieces are arranged on the top surface of the base body respectively and protrude out of the top surface of the base body, the shielding pieces and the suspension wire connecting portions are arranged at intervals, and the plurality of shielding pieces are arranged at the peripheries of the plurality of notches respectively and used for shielding external foreign matters from entering the base from the notches. The utility model discloses a shielding part sets up outside the week of breach, can effectively block outside foreign matter and get into inside the base, prevents that outside foreign matter from disturbing base body's internal circuit, perhaps causes the internal circuit short circuit, dodges outside foreign matter and destroys internal circuit or circuit board, and then can prolong camera lens drive arrangement's life-span.

Description

Lens driving device and base thereof

Technical Field

The utility model relates to an optical drive field, concretely relates to camera lens drive arrangement and base thereof.

Background

With the development of technology, many electronic devices today have the function of taking pictures or recording videos. The use of these electronic devices is becoming more common and the design direction of these electronic devices is being developed to be more convenient and thinner to provide more choices for users.

In practice, in order to adapt to various scenes for photographing, the lens needs to be continuously focused, and in the prior art, a lens driving device is generally used for driving the lens to move along a three-dimensional direction, namely along an optical axis direction and two mutually perpendicular directions perpendicular to the optical axis. Specifically, the lens driving apparatus includes a housing, a frame, a carrier, an upper spring, a lower spring, a plurality of suspension wires, and a base, wherein the housing and the base cooperate to provide a receiving space for mounting the frame and the carrier. The frame is equipped with the multiunit magnetite, and the carrier is used for installing the camera lens, and the carrier is equipped with a set of coil and is used for cooperating the magnetite on the frame and move along the optical axis direction with drive carrier and camera lens, and the carrier is installed in the hollow structure of frame. The upper spring is connected with the top of the frame and the carrier, and the lower spring is connected with the bottom of the frame and the carrier, and the upper spring and the lower spring can enable the frame and the carrier to be movably connected. A plurality of suspension wires connect the base and the upper spring for transmitting current.

The base generally includes circuit board and base body, and base body also is equipped with internal circuit, and internal circuit joinable external power source, internal circuit have be equipped with the suspension wire connecting portion with the electricity connection suspension wire. Two groups of coils are arranged in the circuit board and are arranged on the top surface of the base body. However, external foreign objects such as dust may enter the base, and in a serious case, the internal circuit of the base may be damaged, thereby affecting the life of the lens driving apparatus.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a camera lens drive arrangement and circuit board thereof to solve the problem that exists among the above-mentioned prior art.

The applicant has found through research that a considerable part of foreign substances such as dust entering the interior of the lens driving device enters through the mount wire portion of the base of the lens driving device. To this end, according to an aspect of the present invention, there is provided a base applied to a lens driving device including a housing and a plurality of suspension wires, the base including:

the base body is provided with a plurality of corners, the corners are provided with suspension wire connecting parts, the base body is used for matching with the shell to form an accommodating space, and the suspension wire connecting parts are used for connecting suspension wires;

the shielding pieces are arranged on the top surface of the base body and protrude out of the top surface of the base body, the shielding pieces and the suspension wire connecting parts are arranged at intervals, and the shielding pieces are arranged at the corners and used for shielding external foreign matters from entering the base from the corners.

In one embodiment, the suspension wire further comprises a circuit board, wherein the circuit board is overlapped and connected to the top surface of the base body, and the circuit board is provided with a plurality of notches respectively positioned at a plurality of corner parts and used for avoiding the suspension wire; the shielding pieces are arranged at the peripheries of the notches respectively and used for shielding external foreign matters from entering the inside of the base from the notches.

In one embodiment, the shield is integrally formed on the top surface of the base body and has an outer profile that is the same as the profile of the perimeter of the indentation.

In one embodiment, two ends of the shielding piece are respectively positioned at two adjacent side edges of the base.

In one embodiment, the shield abuts the perimeter of the gap.

In one embodiment, the shield is a rib extending in a circumferential direction of the notch.

In one embodiment, the cross-section of the rib is rectangular.

In one embodiment, the thickness of the convex strip in the optical axis direction of the lens driving device is equal to or greater than the thickness of the circuit board.

In one embodiment, the base body has a rectangular shape, and the circuit board has a shape in which four corners of the rectangular shape are removed.

In one embodiment, the shield is made of an insulating material.

The utility model discloses still relate to a camera lens drive arrangement, include:

a housing;

in the base, the base is matched with the shell to form an accommodating space, an internal circuit is arranged in the base body, the circuit board is provided with a plurality of groups of first coils, and the circuit board and the first coils are electrically connected with the internal circuit;

the frame is provided with a hollow structure and is arranged in the accommodating space, a metal sheet is embedded in the frame, and a plurality of groups of magnets are arranged on the frame;

the carrier is provided with a second group of coils and can be movably arranged in the hollow structure of the frame;

the upper reed is connected with the top of the frame and the top of the carrier, and is electrically connected with the metal sheet and used for movably connecting the top of the frame and the top of the carrier;

the lower spring is connected to the bottom of the frame and the bottom of the carrier, electrically connected with the metal sheet and the second group of coils, and used for movably connecting the bottom of the frame and the bottom of the carrier; and

one end of each suspension wire is connected with the suspension wire connecting part, the other end of each suspension wire is connected with the upper reed, and the suspension wires can transmit current in the internal circuit of the base to the upper reed;

the first group of coils is matched with the magnets to drive the carrier to move along the direction perpendicular to the optical axis, and the second group of coils is used for being matched with the magnets to drive the carrier to move along the direction of the optical axis.

The utility model discloses a shielding part sets up outside the week of breach, can effectively block outside foreign matter and get into inside the base, prevents that outside foreign matter from disturbing base body's internal circuit, perhaps causes the internal circuit short circuit, dodges outside foreign matter and destroys internal circuit or circuit board, and then can prolong camera lens drive arrangement's life-span.

Drawings

Fig. 1 is an exploded view of a lens driving apparatus according to an embodiment of the present invention.

Fig. 2 is a top view of a base according to an embodiment of the present invention.

Fig. 3 is a perspective view of the base body of the embodiment shown in fig. 2.

Fig. 4 is a right side view of the base body of the embodiment shown in fig. 2.

Reference numerals: 100. a lens driving device; 1. a housing; 2. a base; 21. a base body; 211. a suspension wire connecting portion; 212. a corner portion; 22. a circuit board; 221. a notch; 222. a perimeter of the gap; 23. a shield; 231. the outer contour of the shield; 3. a carrier; 4. a frame; 41. a magnet; 5. a spring plate is arranged; 6. adding yellow tablets; 7. and (4) suspending the filaments.

Detailed Description

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

In the following description, for the purposes of illustrating 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 the embodiments may be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this 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, the 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 sake of clarity, the structure and operation of the present invention will be described with the aid of directional terms, but the terms "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be understood as words of convenience and not as words of limitation.

Fig. 1 is an exploded view of a lens driving device 100 according to an embodiment of the present invention, where the lens driving device 100 includes a housing 1, a base 2, a frame 4, a carrier 3, an upper spring 5, a lower yellow piece 6, and a plurality of suspension wires 7, where the housing 1 and the base 2 cooperate to form a receiving space to receive the frame 4, the carrier 3, the upper spring 5, the lower yellow piece 6, and the plurality of suspension wires 7, the base 2 includes a base body 21 and a circuit board 22, an internal circuit is provided in the base body 21, the internal circuit can be connected to an external power source, and the circuit board 22 is provided with a plurality of sets of first coils, the internal circuit is connected to the first coils and the circuit board 22, a current of the internal circuit can flow into the circuit board 22 and the first coils from the internal circuit, and power is supplied to the circuit board 22 and the first coils.

The frame 4 has a hollow structure and is installed in the accommodating space, a metal sheet is embedded in the frame 4, and a plurality of groups of magnets 41 are arranged on the frame 4. In the embodiment shown in FIG. 1, three sets of magnets 41 are mounted on the frame 4, but it should be understood that in other embodiments, four or more sets of magnets 41 may be provided on the frame 4. The carrier 3 is provided with a second set of coils and is movably mounted in the hollow structure of the frame 4.

The upper spring 5 connects the top of the frame 4 and the top of the carrier 3, and the upper spring 5 electrically connects the metal sheet for movably connecting the top of the frame 4 and the top of the carrier 3.

The lower spring is connected to the bottom of the frame 4 and the bottom of the carrier 3 and electrically connects the metal sheet and the second set of coils, and the lower spring 6 is used to movably connect the bottom of the frame 4 and the bottom of the carrier 3.

The one end of a plurality of suspension wires 7 is connected with suspension wire connecting portion 211, the other end is connected with upper reed 5, suspension wires 7 can transmit the current in the internal circuit of base 2 to upper reed 5, the internal circuit in base 2 is connected with an external power supply, the circuit flows into suspension wires 7, upper reed 5, the metal sheet in frame 4, lower yellow sheet 6 to the first group of coils in proper order from the internal circuit, and the first group of coils are electrified, it is the magnetite 41 on the first group of coils cooperation frame 4 to drive carrier 3 to move along the direction perpendicular to the optical axis, thereby the focus of the lens is mediated. In addition, the internal circuit is electrically connected with a second group of coils in the circuit board 22 and supplies power to the second group of coils, so that the second group of coils is used for matching with the magnet 41 on the frame 4 to drive the carrier 3 to move along the optical axis direction, and the lens shake is prevented.

Fig. 2 is a top view of the base 2 according to an embodiment of the present invention, fig. 3 is a perspective view of the base body 21 according to an embodiment of the present invention, and fig. 4 is a right side view of the base body 21 according to an embodiment of the present invention. As shown in fig. 2, 3 and 4, the base 2 includes not only a base body 21 and a plurality of shutters 23, wherein the base body 21 is configured to fit the housing 1 to form a receiving space, the base body 21 has a plurality of corners 212, each corner 212 is provided with a suspension wire connecting portion 211, and the suspension wire connecting portion 211 is configured to connect the suspension wire 7. The base body 21 has an internal circuit therein, and the suspension connecting portion 211 is a connection end of the internal circuit, so that current can flow from the suspension connecting portion 211 to the suspension 7 and the upper spring 5 when the internal circuit is connected to an external power supply.

The shielding pieces 23 are respectively arranged on the top surface of the base body 21 and protrude out of the top surface of the base body 21, the shielding pieces 23 and the suspension wire connecting parts 211 are arranged at intervals, and the shielding pieces 23 are arranged at the corners 212, so that foreign matters can be prevented from entering the base cup body 21 from the corners 212.

Optionally, a circuit board 22 is further included, the circuit board 22 is stacked on and connected to the top surface of the base body 21, and the circuit board 22 has a plurality of notches 221, each notch 221 is located at a respective corner 212 of the base body 21, and the notches 221 are used for avoiding the suspension wires 7. It will be appreciated that the circuit board 22 also has a second set of coils therein, and that the circuit board 22 and the second set of coils are also electrically connected to the internal circuitry of the base 2. The plurality of shutters 23 are disposed at the peripheries 222 of the plurality of notches 221, respectively, and serve to block foreign substances from outside from entering the inside of the base 2 through the notches 221. The utility model discloses a shielding member 23 sets up outside the perimeter 222 of breach 221, can effectively block outside foreign matter and get into inside base 2, prevents that outside foreign matter from disturbing base body 21's internal circuit, perhaps causes the internal circuit short circuit, dodges outside foreign matter and destroys internal circuit or circuit board 22, and then can prolong camera lens drive arrangement 100's life-span.

Optionally, the shield 23 is integrally formed on the top surface of the base body 21, and the outer profile 231 of the shield is the same as the profile of the perimeter 222 of the indentation. The outer contour 231 of the shielding member is the side close to the perimeter 222 of the gap, and the outer contour 231 of the shielding member matches the contour of the perimeter 222 of the gap, so that foreign matters can be prevented from entering the base 2 more completely. It will be appreciated that the shield 23 may not match the shape of the perimeter 222 of the notch, for example, the shield 23 may also be straight, and the two ends of the straight shield 23 are located at the two ends of the notch 221, and the shield 23 may also prevent foreign matter from entering the interior of the base 2 from the perimeter 222 of the notch. The shape of the shield 23 may be any other shape, for example, an arc shape or a "Z" shape, and the shape of the shield 23 is not limited as long as the perimeter 222 of the notch can be covered.

Alternatively, the circuit board 22 has a plurality of sides, and two ends of the perimeter 222 of the notch are located at two adjacent sides of the circuit board 22, so that two ends of the shielding member 23 are also located at two adjacent sides of the base 2. It will be appreciated that the dimensions of the shield 23 are matched to the dimensions of the perimeter 222 of the gap, i.e. the ends of the shield 23 are at least aligned with the ends of the perimeter 222 of the gap, or extend around the perimeter 222 of the gap, to provide a more complete shield against foreign objects entering the interior of the base 2 from any position in the gap 221.

Optionally, the shield 23 abuts the perimeter 222 of the gap. When the base 2 is manufactured, the shielding piece 23 can be connected to the top surface of the base body 21, or the shielding piece 23 and the base body 21 are integrally formed, and then the plurality of notches 221 of the circuit board 22 are installed at the plurality of shielding pieces 23, so that the circuit board 22 is conveniently positioned and installed on the base body 21, and the manufacturing efficiency of the circuit board 22 is improved.

Alternatively, as shown in figures 2, 3 and 4, the shield 23 is a rib which extends in the direction of the perimeter 222 of the aperture. In the embodiment of fig. 2, 3 and 4, the two ends of the shielding element 23 are symmetrically bent toward each other and are bent to conform to the shape of the perimeter 222 of the notch of the circuit board 22, and the protruding strip and the notch 221 of the circuit board 22 cooperate to facilitate positioning and mounting of the circuit board 22, thereby improving the manufacturing efficiency of the base 2. In addition, the ribs may be spaced from the perimeter 222 of the notch or may abut the perimeter 222 of the notch, without limiting the distance between the ribs and the perimeter 222 of the notch.

Further, the cross section of the protruding strip is rectangular, i.e. the protruding strip is a rectangular strip, as shown in fig. 2 and 3. It should be understood that in other embodiments, the shape of the notch 221 may be designed to be a round bar, a square bar or any other shape, and the shape of the convex strip is not limited herein. In addition, it should be understood that, in order to enhance the effect of the shielding member 23 on blocking foreign objects, a plurality of convex strips may be provided at the corner 212 of the base 2, and the convex strips are arranged at intervals from the periphery 222 of the notch to the corner 212 of the base 2, and the number of the convex strips is not limited herein.

Preferably, the thickness of the ribs in the optical axis direction of the lens driving device 100 may be equal to the thickness of the circuit board 22, preferably slightly greater than the thickness of the circuit board 22, i.e., the ribs need to completely cover the perimeter 222 of the notch to more fully shield foreign objects such as dust and the like. In addition, as long as the ribs do not affect the operation of the lens driving device 100, the dimension in which the thickness of the ribs in the optical axis direction exceeds the thickness of the circuit board 22 is not limited herein.

Alternatively, the shape of the base body 21 is a rectangle, and the shape of the circuit board 22 is a shape formed by removing four corners 212 of the rectangle. The circuit board 22 is also rectangular, and the size of the circuit board 22 and the size of the base body 21, four corners 212 of the circuit board 22 are respectively provided with notches 221, and the shapes of the four notches 221 match the four corners 212 of the base body 21.

Optionally, the shutter 23 is made of an insulating material, such as plastic, silicone, or the like. It should be understood that the top surface of the base is made of insulating plastic material, and the shielding element 23 and the suspension wire connecting portion 211 are disposed at an interval, so that the shielding element 23 may also be made of conductive material, and the shielding element 23 made of conductive material does not affect the operation of the lens driving device.

The utility model discloses a shielding piece 23 sets up outside the perimeter 222 of breach, can effectively block outside foreign matter and get into inside base 2, prevents that outside foreign matter from disturbing base body 21's internal circuit, perhaps causes the internal circuit short circuit, dodges outside foreign matter and destroys internal circuit or circuit board 22, and then can prolong camera lens drive arrangement 100's life-span.

The preferred embodiments of the present invention have been described in detail, but it should be understood that various changes and modifications can be made by those skilled in the art after reading the above teaching of the present invention. Such equivalents are intended to fall within the scope of the claims appended hereto.

Claims (11)

1. A mount applied to a lens driving apparatus including a housing and a plurality of suspension wires, characterized in that the mount includes:

the base body is provided with a plurality of corners, the corners are provided with suspension wire connecting parts, the base body is used for matching with the shell to form an accommodating space, and the suspension wire connecting parts are used for connecting suspension wires;

the shielding pieces are arranged on the top surface of the base body and protrude out of the top surface of the base body respectively, the shielding pieces and the suspension wire connecting parts are arranged at intervals, and the shielding pieces are arranged at the corners respectively and used for shielding external foreign matters from entering the base from the corners.

2. The base of claim 1, further comprising a circuit board overlying and attached to the top surface of the base body, the circuit board having a plurality of notches respectively located at a plurality of the corners, the notches configured to avoid the suspension wires; the shielding pieces are arranged at the peripheries of the notches respectively and used for shielding external foreign matters from entering the inside of the base from the notches.

3. The base of claim 2, wherein the shield is integrally formed on the top surface of the base body and has an outer profile that is the same as the profile of the perimeter of the indentation.

4. The base of claim 2, wherein the two ends of the shield are located on two adjacent sides of the base.

5. The base of claim 2, wherein the shield abuts a perimeter of the gap.

6. The base of claim 2, wherein the shield is a rib extending along a perimeter of the gap.

7. The base of claim 6, wherein the ribs are rectangular in cross-section.

8. The chassis according to claim 6, wherein the thickness of the rib in the optical axis direction of the lens driving device is equal to or greater than the thickness of the circuit board.

9. The base of claim 2, wherein the base body has a rectangular shape, and the circuit board has a shape in which four corners of the rectangular shape are removed.

10. The base of claim 2, wherein the shield is made of an insulating material.

11. A lens driving apparatus, comprising:

a housing;

the base of any one of claims 2 to 10, wherein the base forms a containing space with the housing, the base body has an internal circuit therein, the circuit board is provided with a plurality of sets of first coils, and the circuit board and the first coils are electrically connected with the internal circuit;

the frame is provided with a hollow structure and is arranged in the accommodating space, a metal sheet is embedded in the frame, and a plurality of groups of magnets are arranged on the frame;

the carrier is provided with a second group of coils and can be movably arranged in the hollow structure of the frame;

the upper reed is connected with the top of the frame and the top of the carrier, and is electrically connected with the metal sheet and used for movably connecting the top of the frame and the top of the carrier;

the lower spring is connected to the bottom of the frame and the bottom of the carrier, electrically connected with the metal sheet and the second group of coils, and used for movably connecting the bottom of the frame and the bottom of the carrier; and

one end of each suspension wire is connected with the suspension wire connecting part, the other end of each suspension wire is connected with the upper reed, and the suspension wires can transmit current in the internal circuit of the base to the upper reed;

the first group of coils is matched with the magnets to drive the carrier to move along the direction perpendicular to the optical axis, and the second group of coils is used for being matched with the magnets to drive the carrier to move along the direction of the optical axis.

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