CN209767652U - Anti-shake structure, anti-shake system and camera device - Google Patents

Abstract

The utility model provides an anti-shake structure, anti-shake system and camera device. Wherein, anti-shake structure includes: the device comprises a shell, wherein abdication openings are formed in four circumferential side walls of the shell; the flexible PCB is arranged around the inner surface of the circumferential side wall of the shell; the four lateral coils are arranged on the flexible PCB and are correspondingly accommodated at the yielding openings; the focusing assembly is positioned in an area enclosed by the flexible PCB; the base, the base is located the below of focusing the subassembly, and flexible PCB board has a plurality of end foot groups that stretch out towards base one side, and each end foot group all has a plurality of first end feet, and the base has a plurality of second end feet, and the second end foot is with focusing subassembly electricity conductance. The utility model provides an among the prior art anti-shake structure overall arrangement unreasonable problem.

Description

Anti-shake structure, anti-shake system and camera device

Technical Field

The utility model relates to a camera technical field particularly, relates to an anti-shake structure, anti-shake system and camera device.

Background

Photos shot by electronic equipment such as a mobile phone and the like in the shooting process sometimes become invalid, namely, the shot pictures are not clear enough, and double images or blurs occur. These causes, in addition to occasional defocus (i.e., failure of the imaging lens to be in focus), are largely due to slight jitter occurring when the photographic subject is exposed. In general, such a very slight shaking phenomenon often occurs in a handheld condition, and thus, in recent years, there is a relatively large demand for developing an anti-shaking function. Under the background, proposals for the optical anti-shake function of OIS (optical image stabilization system) are increasing, and the micro optical anti-shake technology is gradually adopted by various high-end mobile phones, so that it is expected to effectively reduce the probability of taking blurred pictures in a low-light environment and effectively solve the trouble caused by hand shake in the shooting process. However, compared to a general auto-focus motor, the design of the OIS optical anti-shake apparatus is complicated, and the production efficiency and yield are low, so the development is difficult.

Therefore, the problem that the overall layout of the anti-shake structure is unreasonable exists in the prior art.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide an anti-shake structure, anti-shake system and camera device to solve the unreasonable problem of anti-shake structure overall arrangement among the prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided an anti-shake structure, including: the device comprises a shell, wherein abdication openings are formed in four circumferential side walls of the shell; the flexible PCB is arranged around the inner surface of the circumferential side wall of the shell; the four lateral coils are arranged on the flexible PCB and are correspondingly accommodated at the yielding openings; the focusing assembly is positioned in an area enclosed by the flexible PCB; the base, the base is located the below of focusing the subassembly, and flexible PCB board has a plurality of end foot groups that stretch out towards base one side, and each end foot group all has a plurality of first end feet, and the base has a plurality of second end feet, and the second end foot is with focusing subassembly electricity conductance.

Furthermore, a group of opposite board sections of the flexible PCB board are respectively provided with an end pin group.

Further, the lateral coils are not disposed protruding from the outer surface of the case.

further, the surface of the side coil far away from the flexible PCB is flush with the outer surface of the shell.

Further, the anti-shake structure further comprises a position sensor and/or a capacitor, and the position sensor and/or the capacitor are accommodated in the annular area of the lateral coil.

furthermore, the number of the position sensors and the number of the capacitors are two, and one position sensor and one capacitor are correspondingly arranged in the annular area of one group of adjacent lateral coils respectively.

Further, the position sensor and/or the capacitor do not protrude from the surface of the side coil on the side away from the flexible PCB.

Furthermore, the yielding opening is provided with a sealant layer to at least cover partial areas of the end pin group and the lateral coils accommodated at the yielding opening.

Furthermore, the corner of the flexible PCB board is provided with a lapping step, the circumference of the base is provided with a supporting rib matched with the lapping step, the first step surface of the lapping step is pressed on the upper surface of the base, and the second step surface of the lapping step is pressed on the supporting rib.

Further, the edge of the side of the shell close to the base is pressed on the supporting rib.

Furthermore, the abdicating opening is communicated to the edge of one side of the shell close to the base.

Furthermore, the anti-shake structure also comprises a lower cover and a plurality of anti-shake reeds, wherein the lower cover and the plurality of anti-shake reeds are arranged between the base and the focusing assembly, the plurality of anti-shake reeds are independent from each other and are positioned below the lower cover, the focusing assembly is fixed on the lower cover, and a plurality of binding posts of the focusing assembly are electrically connected with a plurality of third terminals of the lower cover in a one-to-one correspondence manner; a plurality of third terminals of the lower cover are electrically connected with a plurality of anti-shake reeds in a one-to-one correspondence manner; the end of the deflection arm of each anti-shake spring is electrically connected with a different second terminal pin.

Further, the anti-shake structure still includes: at least one ball support piece, the base is provided with the mounting groove on one side towards the anti-shake reed, and ball support piece places in the mounting groove, and ball support piece supports the anti-shake reed.

According to another aspect of the utility model, an anti-shake system is provided, including foretell anti-shake structure.

According to another aspect of the present invention, there is provided an image pickup apparatus including the above-mentioned anti-shake system.

Use the technical scheme of the utility model, anti-shake structure in this application includes shell, flexible PCB board, four side direction coils, focuses subassembly and base. The four circumferential side walls of the shell are provided with abdicating openings; the flexible PCB is arranged around the inner surface of the circumferential side wall of the shell; the four lateral coils are arranged on the flexible PCB and are correspondingly accommodated at the yielding openings; the focusing assembly is positioned in an area enclosed by the flexible PCB; the base is located the below of focusing the subassembly, and flexible PCB board has a plurality of end foot groups that stretch out towards base one side, and each end foot group all has a plurality of first end feet, and the base has a plurality of second end feet, and the second end foot is with focusing the subassembly electricity and being led to.

When the anti-shake structure of the structure is used, the shell is provided with the abdicating opening, so that the four lateral coils can be arranged at the abdicating opening of the side wall of the shell in a one-to-one correspondence manner, and the thickness space of the side wall of the shell can be fully used. And because the flexible PCB is also provided with a plurality of terminal pin groups, other components are not needed to realize the electric connection of the lateral coil. Thereby can also make the overall layout of anti-shake structure compacter reasonable when guaranteeing anti-shake structural performance.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

Fig. 1 shows a schematic structural diagram of an anti-shake structure according to an embodiment of the present invention;

Fig. 2 shows a cross-sectional view a-a of the anti-shake structure of fig. 1;

Fig. 3 shows an exploded view of the anti-shake structure of fig. 1;

Fig. 4 shows an internal structural view of the anti-shake structure of fig. 1;

FIG. 5 shows a top view of the anti-shake structure of FIG. 4;

Fig. 6 is a schematic diagram illustrating a position relationship between a flexible PCB and a base of the anti-shake structure of fig. 1;

fig. 7 is a schematic view illustrating a positional relationship among a housing, an upper spring, a bracket, and a flexible PCB of the anti-shake structure of fig. 1;

Fig. 8 is a bottom view of the anti-shake structure of fig. 1 after the lens support, the holder, and the drive magnet are assembled;

fig. 9 illustrates a bottom view of a lower cover of the anti-shake structure of fig. 1;

Fig. 10 is a plan view illustrating a lower cover of the anti-shake structure of fig. 1;

fig. 11 is a schematic view showing the connection of an anti-shake reed and a lower cover of the anti-shake structure of fig. 1;

Fig. 12 is a diagram showing a positional relationship between an anti-shake reed and a base of the anti-shake structure of fig. 1;

Fig. 13 shows an assembly view of the base and the ball support of the anti-shake structure of fig. 1.

Wherein the figures include the following reference numerals:

10. A housing; 11. a abdication opening is formed; 20. a flexible PCB board; 21. a terminal pin group; 211. a first terminal pin; 22. lapping steps; 221. a first step surface; 222. a second step surface; 30. a lateral coil; 40. a focusing assembly; 41. an upper spring; 42. a support; 421. positioning the bump; 43. a drive magnet; 44. a lens support; 441. a foot pad; 45. a lower spring; 46. a drive coil; 50. a base; 51. a second terminal pin; 52. supporting ribs; 53. mounting grooves; 60. a position sensor; 70. a capacitor; 80. a lower cover; 81. a third terminal pin; 82. positioning the projection; 83. sinking a groove; 831. overlapping the bulges; 90. an anti-shake reed; 100. a ball support; 200. and (5) thermally riveting the columns.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

it is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

In order to solve the unreasonable problem of the overall layout of the anti-shake structure in the prior art, the application provides an anti-shake structure, an anti-shake system and a camera device.

The camera device comprises an anti-shake system, and the anti-shake system comprises an anti-shake structure. Through using the anti-shake system in this application, can improve camera device's anti-shake performance effectively, avoid appearing using camera device to shoot out fuzzy, unclear image to can also carry on the camera lens of great weight, and focus oscillation and gesture stability when automatic focusing or do translation formula optics anti-shake, the required time is shorter, and the speed of focusing is faster. And the space occupied by the camera device is effectively reduced.

As shown in fig. 1 to 13, the anti-shake structure of the present application includes a housing 10, a flexible PCB board 20, four lateral coils 30, a focusing assembly 40, and a base 50. The four circumferential side walls of the shell 10 are provided with abdicating openings 11; the flexible PCB board 20 is disposed around an inner surface of the circumferential sidewall of the housing 10; the four lateral coils 30 are arranged on the flexible PCB 20 and are correspondingly accommodated at the abdicating openings 11; the focusing assembly 40 is located in the area enclosed by the flexible PCB 20; the base 50 is located below the focusing assembly 40, and the flexible PCB 20 has a plurality of terminal pin sets 21 extending toward one side of the base 50, each terminal pin set 21 has a plurality of first terminal pins 211, the base 50 has a plurality of second terminal pins 51, and the second terminal pins 51 are electrically connected to the focusing assembly 40.

When the anti-shake structure having the above structure is used, since the housing 10 has the escape opening 11, the four lateral coils 30 can be disposed at the escape opening 11 of the sidewall of the housing 10 in a one-to-one correspondence, so that the thickness space of the sidewall of the housing 10 can be sufficiently used. And because a plurality of terminal pin groups 21 are arranged on the flexible PCB 20, other components are not needed to realize the electric connection of the lateral coil 30. Thereby can also make the overall layout of anti-shake structure compacter reasonable when guaranteeing anti-shake structural performance.

In the present application, the focusing assembly 40 includes an upper spring 41, a bracket 42, a driving magnet 43, a lens support 44, and a lower spring 45.

it should be noted that the connection between the lateral coil 30 and the flexible PCB 20 may be maintained by soldering or gluing.

Specifically, the flexible PCB 20 has a set of terminal pins 21 disposed on a set of opposite board segments. The end pin group 21 is disposed on the flexible PCB 20, and the end pin group 21 is exposed at the abdicating opening 11 of the housing 10, so that the space occupied by the anti-shake structure can be further effectively reduced, and the thickness space of the side wall of the housing 10 can be effectively used.

Alternatively, the lateral coil 30 is not disposed to protrude from the outer surface of the case 10.

Alternatively, the surface of the side coil 30 away from the flexible PCB board 20 is disposed flush with the outer surface of the housing 10.

by this arrangement, the side coil 30 can be protected by the edge of the case 10, and the outer surface of the side coil 30 can be protected from abrasion. And, can also guarantee the holistic compact structure nature of anti-shake structure through setting up like this.

in particular, the anti-shake structure further comprises a position sensor 60 and/or a capacitor 70, the position sensor 60 and/or the capacitor 70 being accommodated within the annular region of the lateral coil 30. By means of the arrangement, the annular area in the lateral coil 30 can be reasonably utilized, so that the occupied space of the position sensor 60 and the capacitor 70 is not increased, and the compactness of the anti-shake structure is guaranteed.

It should be noted that, in the present application, the position sensor 60 is attached to the outer surface of the flexible PCB 20 by SMT patch processing, and is conducted with the inner route of the flexible PCB.

specifically, two position sensors 60 and two capacitors 70 are provided, and one position sensor 60 and one capacitor 70 are respectively disposed in the annular regions of a group of adjacent lateral coils 30.

The position sensor 60 in the present embodiment is a hall chip.

By providing the hall chip, the feedback of the position signal of the magnet 43 can be induced and driven by the hall chip, so that the offset of the lens support 44 can be calculated, and then the magnitude of the current applied to the lateral coil 30 can be calculated according to the offset of the lens support 44, and the lateral coil 30 and the driving magnet 43 interact to generate electromagnetic force, so that the support 42 is driven by the electromagnetic force, and the lens support 44 is driven by the support 42 to displace, so that the generated displacement corrects the offset of the lens support 44.

In the present embodiment, the number of the hall chips is 2, and the two hall chips respectively sense the position offset of the lens support 44 in the X axis and the Y axis, thereby forming a closed-loop position sensing system. Because two hall chips need to set up for X axle and Y axle, so set up position sensor 60 at a set of adjacent side direction coil 30 correspondence to two position sensor 60's mounted position should keep away from as far as possible, thereby can avoid driving magnetite 43 to cause the interference to hall chip effectively, thereby guarantee hall chip to the accuracy of displacement signal feedback.

Specifically, the position sensor 60 and/or the capacitor 70 do not protrude from the surface of the side coil 30 on the side away from the flexible PCB board 20. By such an arrangement, the internal space of the anti-shake structure can be reasonably utilized, and the position sensor 60 and the capacitor 70 can be protected by the housing 10 and the lateral collar. And through setting up like this, can also make things convenient for the assembly of anti-shake structure.

specifically, the yielding opening 11 is provided with a sealant layer to cover at least a partial region of the terminal pin group 21 and the lateral coil 30 accommodated at the yielding opening 11. Set up like this, can seal the opening 11 of stepping down through the adhesive tape layer to prevent that the dust from getting into inside the anti-shake structure. In addition, the side coil 30, the position sensor 60 and the capacitor 70 can be protected by the sealant layer, and rubbing of the side coil 30, the position sensor 60 and the capacitor 70 in the working process of the anti-shake system is prevented. On the other hand, can also play certain radiating action to the anti-shake structure through setting up the adhesive tape layer to can guarantee the working property of anti-shake structure.

Specifically, the lapping step 22 is provided at the corner of the flexible PCB 20, the base 50 has a support rib 52 fitted to the lapping step 22 in the circumferential direction, the first step surface 221 of the lapping step 22 is pressed against the upper surface of the base 50, and the second step surface 222 of the lapping step 22 is pressed against the support rib 52. Through setting up like this, can guarantee that base 50 can play the supporting role effectively to flexible PCB board 20, guarantee that flexible PCB board 20 can not appear rocking in the use, guarantee the job stabilization nature of anti-shake structure.

Specifically, since the lateral coil 30, the position sensor 60, and the capacitor 70 are provided at the relief opening 11 of the housing 10, the lateral coil 30, the position sensor 60, and the capacitor 70 may be damaged when the housing 10 is subjected to the pressing force in the Z-axis direction, and therefore, the lateral coil 30, the position sensor 60, and the capacitor 70 can be effectively protected by pressing the edge of the housing 10 on the side close to the base 50 against the support rib 52. Moreover, the stability of the anti-shake structure can be further increased by such an arrangement.

Specifically, the relief opening 11 communicates to the edge of the case 10 on the side close to the base 50. Since the terminal pin group 21 needs to be electrically connected, the terminal pin group 21 can be effectively abducted by the arrangement. And by doing so, the fitting between the flexible PCB 20 and the chassis 50 can be made more tight.

optionally, the anti-shake structure further includes a lower cover 80 and a plurality of anti-shake springs 90 disposed between the base 50 and the focusing assembly 40, the plurality of anti-shake springs 90 are independent of each other and located below the lower cover 80, the focusing assembly 40 is fixed on the lower cover 80, and a plurality of terminals of the focusing assembly 40 are electrically connected to a plurality of third terminals 81 of the lower cover 80 in a one-to-one correspondence manner; the plurality of third terminals 81 of the lower cover 80 are electrically connected to the plurality of anti-shake springs 90 in a one-to-one correspondence; the end of the deflection arm of each anti-shake reed 90 is electrically connected to a different second terminal pin 51.

It should be noted that, in the present application, the second terminal pin 51 and the base 50 are integrally formed by injection MOLDING, that is, the second terminal pin 51 is placed inside the base 50 by INSERT MOLDING. Similarly, the third terminal 81 and the lower cover 80 may be formed by injection MOLDING, that is, the third terminal 81 is inserted into the lower cover 80 by INSERT MOLDING.

In a specific embodiment, the thickness of the anti-shake spring 90 introduced by the anti-shake structure is 100 μm, so that a lens with a larger weight can be loaded, and the driving force is larger than that of the conventional suspension wire type anti-shake structure. Specifically, each anti-shake reed 90 has an inner main body and a flexure arm located outside the inner main body, and the lower cover 80 is fixed to the main body. With such an arrangement, one end of the main body of the anti-shake spring 90 can be fixedly connected to the lower cover 80, and one end of the upper deflection arm of the anti-shake spring 90 is connected to the base 50, so that the stability between the lower cover 80 and the base 50 can be effectively ensured.

Alternatively, the main body of the anti-shake reed 90 and the lower cover 80 can be fixed by bonding. Since the anti-shake spring 90 is made of metal and the lower cover 80 is made of plastic, the two are bonded together more easily.

Similarly, the ends of the deflection arms of the anti-shake spring 90 can be connected and fixed to the base 50 by welding.

As shown in fig. 9, the lower cover 80 has a positioning boss 82 protruding toward the anti-shake reed 90, and the positioning boss 82 is connected to the inner body of the anti-shake reed 90. The positioning projection 82 conforms to the contour of the inner body portion. By such an arrangement, the combination area of the main body of the anti-shake reed 90 and the lower cover 80 can be effectively increased, so that the main body and the lower cover 80 are more stably connected, and the stability between the lower cover 80 and the base 50 is effectively increased. In addition, by providing the positioning projection 82 in this way, a certain gap can be formed between the lower cover 80 and the base 50, so that the deflection arm of the anti-shake reed 90 can be moved away, and the lower cover 80 and the base 50 can be prevented from pressing the deflection arm of the anti-shake reed 90.

In general, the contact area between the main body of the anti-shake reed 90 and the lower cover 80 is larger than the contact area between the deflection arms of the anti-shake reed 90 and the base 50, and the projection area of the main body of the anti-shake reed 90 on the base 50 is larger than the projection area of the deflection arms of the anti-shake reed 90 on the base 50.

in this application, anti-shake reed 90 is two, and two anti-shake reeds 90 all are arc, and are the mode interval setting of angular symmetry on base 50. Therefore, the second terminal pin 51, the third terminal pin 81 and the terminal of the focusing assembly 40 can be conducted, so that the whole electrical circuit can be normally conducted. Also, in order to prevent the short circuit phenomenon, two anti-shake reeds 90 need to be spaced apart.

specifically, the anti-shake structure further includes at least one ball support 100, a mounting groove 53 is provided on one side of the base 50 facing the anti-shake reed 90, the ball support 100 is placed in the mounting groove 53, and the ball support 100 supports the anti-shake reed 90. By providing the ball support 100, the anti-shake spring 90 and the lower cover 80, and the focusing assembly 40 disposed above the lower cover 80 can be supported above the base 50 in a suspended manner. According to this structure, after the current is applied to the lateral coil 30, the portion supported by the ball support 100 can be moved in the X-Y axial direction by the electromagnetic force, and the X-Y axial offset caused by the shake is compensated for the position adjustment, thereby truly realizing the anti-shake function. It should be noted that by providing the anti-shake spring plate 90 and connecting the anti-shake spring plate 90 as a connecting member between the lower cover 80 and the base 50, it is also possible to effectively prevent shaking between the lower cover 80 and the base 50 due to the ball support 100. Therefore, the anti-shake reed 90 can effectively ensure the stability of the anti-shake structure. As shown in fig. 3 and 13, in one embodiment of the present application, the number of the ball bearings 100 is 4.

It should be noted that the space of the mounting groove 53 is slightly larger than the diameter of the ball bearing 100, so that it is possible to provide sufficient movement space for the ball bearing 100 to increase the reliability of the X-Y adjustment.

optionally, the outer surface of the ball support 100 has a coating layer, which is a wear-resistant coating layer and/or a damping oil coating layer, and when the coating layer is two-layered and has a wear-resistant coating layer and a damping oil coating layer, the damping oil coating layer is located outside the wear-resistant coating layer.

The ball support 100 is made of a non-conductive high hardness material. Alternatively, the space of the mounting groove 53 is slightly larger with respect to the diameter of the ball bearing 100, so that it is possible to provide a sufficient movement space for the ball bearing 100, and the surface of the ball bearing 100 is coated with damping oil to promote a lubricating effect to enhance the reliability of the X-Y axial sliding adjustment.

the number of the ball bearings 100 may be multiple, and is preferably 4. The shape of the ball support 100 is not limited to a ball type structure, but may be a hemisphere or other supportable shape. The ball support 100 may be fixed to the base 50, or may be directly formed on the base 50 as a protruding support structure. The utility model discloses a ball formula structure, the smooth and easy nature of having considered X-Y axial position to remove, ball support piece 100 with by the damping coefficient of mutual sliding friction between the supporter can be littleer, be favorable to promoting position compensation's anti-shake effect, and the consumption can be lower relatively.

To further improve the anti-shake feedback effect, a DLC coating may be provided on the end face of the ball support 100. DLCDIAMOND LIKE CARBON film has high hardness, high wear resistance and extremely low friction coefficient, and the hard, wear-resistant and low-friction material has good effect on improving the anti-shake feedback efficiency. Of course, coatings of the general type of teflon or the like may also be used.

specifically, on a set of opposite board segments of the flexible PCB 20, there are 7 terminal pins in the terminal pin group 21 on one board segment, and 5 terminal pins in the terminal pin group 21 on the other board segment. Of course, under the condition that the total number of the terminal pins is not changed, the number of the terminal pins in the terminal pin group 21 may also be adjusted, that is, one terminal pin group 21 may have 8 terminal pins, and the other terminal pin group 21 may have 4 terminal pins. Other combinations are possible, or all of the terminal pins may be provided on the same segment of the flexible PCB board 20 rather than a set of opposing segments, as long as the spatial conditions of the configuration permit.

And among all the terminal pins, 4 terminal pins lead to the Hall chip along the X-axis direction, and 4 terminal pins lead to the Hall chip along the Y-axis direction. Each hall chip needs two poles of positive and negative, and needs input and output of signals of each pole, so each hall chip needs at least 4 terminal pins, and the last 4 terminal pins can be reserved for power-on test.

As shown in fig. 4 to 7, the flexible PCB 20 is continuously disposed around the circumference of the housing 10 to form a quadrilateral structure, and one lateral coil 30 is correspondingly disposed on each side of the quadrilateral structure, and two lateral coils 30 corresponding to two oppositely disposed sides are grouped, and two lateral coils 30 in the same group are disposed in series. With such an arrangement, after the lateral coils 30 are powered on, the two oppositely arranged sides generate push-pull forces with the same action direction on the two lateral coils 30, so that the pushing effect of the anti-shake structure can be improved.

In the present embodiment, the number of the driver magnets 43 is 4, and each driver magnet 43 corresponds to one of the lateral coils 30. Note that, in the present application, the driving magnets 43 and the side coils 30 corresponding to each other are respectively located on two sides of the flexible PCB 20. Of course, the number of the lateral coils 30 and the driving magnets 43 is not limited to 4, and the shape and arrangement thereof may be variously changed in design.

As shown in fig. 3, the lens support 44 is further provided with a driving coil 46, and the driving coil 46 can be electrically connected to the lower spring 45 through a terminal, so that the driving coil 46 can drive the lens support 44.

as shown in fig. 10, a surface of the lower cover 80 facing the focusing assembly 40 is provided with a sinking groove 83, and at least a portion of the focusing assembly 40 is received in the sinking groove 83. By such arrangement, abnormal shaking of the lens support body 44 in the X-Y axis direction can be effectively reduced, and the overall thickness of the anti-shaking structure can be effectively reduced while the stability of the anti-shaking structure is ensured.

As shown in fig. 8 and 10, at least one overlapping protrusion 831 is provided in the sinking groove 83; the lens support 44 has at least one foot 441 protruding toward one side of the lower cover 80, the foot 441 being supported on the overlapping protrusion 831. Since the lens support 44 is able to move along the Z-axis during operation of the anti-shake structure. Therefore, when the lens support 44 moves along the Z-axis direction, the arrangement of the overlapping protrusion 831 and the foot 441 not only can effectively reduce the damage of the lens support 44 to the lower cover 80, but also can further ensure the stability of the anti-shake structure.

It should be noted that the bracket 42 and the lower cover 80 are further provided with hot riveting columns 200 for connecting the upper spring 41 and the lower spring 45, respectively. In this application, the driving principle of Z axle optical axis direction position does: when current is applied to the driving coil 46, electromagnetic force is generated between the driving coil 46 and the driving magnet 43, and according to fleming's left-hand rule, the lens support 44 is driven to move linearly along the optical axis of the lens by the action of the electromagnetic force, and the lens support 44 finally stays at a position where the resultant force of the electromagnetic force generated between the lateral coil 30 and the driving magnet 43 and the elastic force of the upper spring 41 and the lower spring 45 reaches a balanced state. By applying a predetermined current to the driving coil 46, the lens support 44 can be controlled to move to a target position, thereby achieving the purpose of focusing.

specifically, the bracket 42 includes a plurality of connection beams and corner support blocks. The four corner supporting blocks are respectively and correspondingly arranged at the corners of the shell 10; two adjacent corner support blocks are connected by a connecting beam, a space for accommodating the driving magnet 43 is formed between the two adjacent corner support blocks, and the upper surfaces of the corner support blocks are provided with positioning lugs 421 protruding towards the shell 10. With such an arrangement, the drive magnet 43 can be fixed by arranging the accommodating space, so that the drive magnet 43 can normally work. The positioning projection 421 is provided to effectively prevent the lens support 44 from striking the inner wall of the housing 10 when moving along the Z-axis.

Specifically, the lower spring 45 further has a solder hole and a solder resist groove, and the lower spring 45 and the lens support 44 can be connected through the solder hole. And hinder the tin groove and can pin the solder paste, prevent that the solder paste from flowing to other positions. In the soldering process, after the solder paste is dispensed to the solder hole, the solder paste is melted by laser welding, so that the lower spring 45 is electrically connected to the driving coil 46 on the winding post of the lens support 44.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

1. The position sensor 60 is attached to the outer side surface of the flexible circuit board in an SMT (surface mount technology) patch processing mode, so that the internal structure of the anti-shake structure is more compact;

2. The whole layout is reasonable and compact, and the anti-shake performance is excellent;

3. The space of the side wall of the shell 10 is fully utilized, so that the whole volume of the anti-shake system is further miniaturized;

4. The driving force of the anti-shake structure is increased.

it is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

it is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (15)

1. An anti-shake structure, comprising:

the device comprises a shell (10), wherein abdicating openings (11) are formed in four circumferential side walls of the shell (10);

A flexible PCB board (20), the flexible PCB board (20) being disposed around an inner surface of a circumferential side wall of the housing (10);

The four lateral coils (30) are arranged on the flexible PCB (20) and correspondingly accommodated at the yielding openings (11);

A focusing assembly (40), wherein the focusing assembly (40) is positioned in an area enclosed by the flexible PCB (20);

A base (50), the base (50) is located below the focusing assembly (40), the flexible PCB (20) has a plurality of end pin groups (21) extending towards one side of the base (50), each end pin group (21) has a plurality of first end pins (211), the base (50) has a plurality of second end pins (51), and the second end pins (51) are electrically communicated with the focusing assembly (40).

2. Anti-shake structure according to claim 1, characterized in that the flexible PCB board (20) is provided with the sets of terminal pins (21) on a set of opposite board segments, respectively.

3. Anti-shake structure according to claim 1, characterised in that the lateral coils (30) are arranged without protruding from the outer surface of the housing (10).

4. Anti-shake structure according to claim 1, characterized in that the surface of the side coil (30) on the side remote from the flexible PCB board (20) is arranged flush with the outer surface of the housing (10).

5. Anti-shake structure according to claim 1, characterized in that the anti-shake structure further comprises a position sensor (60) and/or a capacitor (70), the position sensor (60) and/or the capacitor (70) being accommodated in an annular region of the lateral coil (30).

6. Anti-shake structure according to claim 5, characterized in that the position sensors (60) and the capacitors (70) are both two, and one position sensor (60) and one capacitor (70) are respectively arranged in the annular regions of a group of adjacent lateral coils (30).

7. Anti-shake structure according to claim 5, characterized in that the position sensor (60) and/or the capacitor (70) do not protrude from the surface of the lateral coil (30) on the side remote from the flexible PCB board (20).

8. Anti-shake structure according to claim 1, characterised in that an adhesive layer is provided at the abdicating opening (11) to cover at least a partial area of the set of end feet (21) accommodated at the abdicating opening (11) and the lateral coils (30).

9. The anti-shake structure according to claim 1, wherein a lap step (22) is provided at a corner of the flexible PCB (20), the base (50) has a support rib (52) in a circumferential direction that engages with the lap step (22), a first step surface (221) of the lap step (22) is crimped on an upper surface of the base (50), and a second step surface (222) of the lap step (22) is crimped on the support rib (52).

10. Anti-shake structure according to claim 9, characterised in that the edge of the housing (10) on the side close to the base (50) is crimped onto the support ribs (52).

11. anti-shake structure according to claim 1, characterised in that the relief opening (11) communicates to the edge of the housing (10) on the side close to the base (50).

12. the anti-shake structure according to any one of claims 1 to 11, further comprising a lower cover (80) disposed between the base (50) and the focusing assembly (40), and a plurality of anti-shake springs (90), the plurality of anti-shake springs (90) being independent of each other and located under the lower cover (80),

the focusing assembly (40) is fixed on the lower cover (80), and a plurality of wiring terminals of the focusing assembly (40) are electrically connected with a plurality of third terminal pins (81) of the lower cover (80) in a one-to-one correspondence manner;

The plurality of third terminal pins (81) of the lower cover (80) are electrically connected with the plurality of anti-shake reeds (90) in a one-to-one correspondence manner;

The end of the flexible arm of each anti-shake reed (90) is electrically connected to a different second terminal pin (51).

13. the anti-shake structure according to claim 12, further comprising:

At least one ball support (100), a mounting groove (53) is provided on one side of the base (50) facing the anti-shake reed (90), the ball support (100) is placed in the mounting groove (53), and the ball support (100) supports the anti-shake reed (90).

14. An anti-shake system, characterized by comprising the anti-shake structure according to any one of claims 1 to 13.

15. An image pickup apparatus comprising the anti-shake system according to claim 14.