CN210690920U

CN210690920U - Prism driving device and prism assembly

Info

Publication number: CN210690920U
Application number: CN201921915948.4U
Authority: CN
Inventors: 彭坤; 林聪�; 刘富泉; 其他发明人请求不公开姓名
Original assignee: Henan Hozel Electronics Co Ltd
Current assignee: Henan Haoze Electronics Co ltd Kunshan Branch
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-06-05
Anticipated expiration: 2029-11-07

Abstract

The utility model discloses a prism drive arrangement and prism subassembly. The prism driving device comprises a carrier, a base, a reed and a circuit board. The carrier is used for bearing the prism and is rotatably connected with the base through the reed, the circuit board is installed on the base and is provided with a bottom coil and a side coil, the bottom of the carrier is provided with a bottom magnet corresponding to the bottom coil, the side of the carrier is provided with a side magnet corresponding to the side coil, the bottom coil is matched with the bottom magnet, and the side coil is matched with the side magnet, so that the carrier is driven to rotate relative to the base, wherein the reed is arranged in parallel to the bottom of the base. The utility model discloses an utilize the reed to guarantee to reset to and inject the motion range, reduce part quantity and simplify technology.

Description

Prism driving device and prism assembly

Technical Field

The utility model relates to an optical image equipment technical field, concretely relates to prism drive arrangement and prism subassembly.

Background

With the development of technology, many electronic devices (such as smart phones or digital cameras) have a 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. Spring prism motor is more and more receiving consumer and complete machine manufacturer's favor as comparatively advanced device in the market, however, spring prism motor on the existing market is the unipolar rotation, relates to the part too much, and the mounting process is complicated, and the equipment is difficult the yields low, and the reliability is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prism drive arrangement and prism subassembly to solve the problem that exists among the above-mentioned prior art.

In order to solve the above problem, according to an aspect of the present invention, a prism driving device is provided, the prism driving device includes a carrier, a base, a reed, and a circuit board, the carrier is used for bearing a prism and passes through the reed with base rotatable coupling, the circuit board install in on the base and be equipped with bottom coil and lateral part coil, the bottom of carrier be equipped with the bottom magnet that the bottom coil corresponds, the lateral part of carrier be equipped with the lateral part magnet that the lateral part coil corresponds, the bottom coil with bottom magnet cooperation and lateral part coil with thereby the drive of lateral part magnet cooperation the carrier for the base is rotatory, wherein, the reed is on a parallel with the bottom of base is arranged.

In one embodiment, the carrier comprises a main body, the middle of the main body is provided with a groove for matching with the prism, and two sides of the main body are provided with reed installation parts which are arranged in parallel to the bottom of the base.

In one embodiment, the spring mounting portion is integrally formed to protrude from both sides of the body to both sides, and is provided with a protruding portion on an upper surface to be fixedly coupled with the carrier connecting portion of the spring.

In one embodiment, the prism driving apparatus further includes a magnet group including a side magnet installed in the side magnet installation groove of the carrier and a bottom magnet installed in the bottom magnet installation groove of the carrier, the magnet group including a side magnet and a bottom magnet.

In one embodiment, the base includes a bottom portion provided with a bottom coil avoiding groove to mate with a bottom coil on the circuit board and a rear portion formed with a side coil avoiding groove to mate with a side coil on the circuit board.

In one embodiment, a carrier avoidance slot is also provided in front of the bottom.

In one embodiment, a carrier introduction groove is provided above the side coil avoidance groove.

In one embodiment, two ends of the bottom part integrally extend upwards to form a base spring mounting part, and the upper surface of the base spring mounting part is parallel to the bottom part and is provided with two bulges matched with the springs.

In one embodiment, the circuit board comprises a vertical part and a horizontal part, wherein the inner surface of the vertical part is provided with a side coil, the side coil is matched with a side magnet arranged on the side part of the carrier, the upper surface of the horizontal part is provided with a bottom coil, the bottom coil is matched with a bottom magnet arranged at the bottom of the carrier, and the bottom coil and the side coil are respectively matched with the side magnet and the bottom magnet when being electrified so as to drive the carrier to rotate.

In one embodiment, a sensor is provided inside the bottom coil that cooperates with the bottom magnet to detect the position of the carrier bottom magnet.

In one embodiment, the prism driving device further comprises a shell, the upper surface and the front surface of the shell are provided with notches to be matched with the upper surface and the front surface of the prism, and the shell is matched with the base to enclose the carrier, the spring plate and the circuit board in a space defined by the shell and the base.

In one embodiment, the side magnets are provided with patches.

According to another aspect of the present invention, there is provided a prism assembly, the prism assembly comprising a prism and the prism driving device.

The utility model discloses in, after the reed was installed on carrier and base, the front end and the rear end of reed were located same horizontal plane, and the reed is on a parallel with the bottom of base promptly and arranges, and the both sides of the recess of carrier form complete baffle simultaneously to the realization is to better protection effect of prism and stronger stability. In addition, because the reed is installed in a flat mode, the manufacturing and processing are convenient, the shell can cover most of the carrier, the closed installation with the base is easy, and the integral reliability is stronger.

Drawings

Fig. 1 is an exploded perspective view of a prism driving device according to an embodiment of the present invention.

Fig. 2 is a perspective view of a carrier of the prism drive apparatus of fig. 1.

Fig. 3 is a rear view of a carrier of the prism drive apparatus of fig. 1.

Fig. 4 is a bottom view of the carrier of the prism drive apparatus of fig. 1.

Fig. 5 is a perspective view of a base of the prism drive apparatus of fig. 1.

Fig. 6 is a perspective view of a reed of the prism drive apparatus of fig. 1.

Figure 7 is a perspective view of an assembly of the base, spring and carrier assembled together.

Fig. 8 is a front view of fig. 7.

Fig. 9 is a perspective view of a circuit board of the prism driving device of fig. 1.

Fig. 10 is a front view of a prism drive device according to an embodiment of the present invention.

Fig. 11 is a cross-sectional view of the prism driving apparatus of fig. 10 taken along line a-a.

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.

The utility model discloses a prism drive arrangement generally, including carrier, base, reed and circuit board, the carrier is used for bearing the weight of the prism and through reed and base rotatable coupling, and the circuit board is installed on the base and is equipped with bottom coil and lateral part coil, and the bottom of carrier is equipped with the bottom magnet that corresponds with the bottom coil, and the lateral part of carrier is equipped with the lateral part magnet that corresponds with the lateral part coil, thereby bottom coil and bottom magnet cooperation and lateral part coil and lateral part magnet cooperation drive carrier ring for the base is rotatory. The utility model discloses a prism drive arrangement's reed is on a parallel with the bottom of base is arranged, through setting the reed flat, is convenient for make processing to can adopt and can cover most shells of holistic, make the shell easy and whole reliability is stronger with the closed installation of base. The following description will explain embodiments of the present invention with reference to the drawings.

Fig. 1 is a perspective view of a prism drive device 100. As shown in fig. 1, the prism drive apparatus 100 includes a prism 10, a pair of reeds 20, a carrier 30, a base 40, a housing 50, a circuit board 60, and an electromagnet group 80. The prism 10 is installed in the carrier 30, the carrier 30 is installed on the base 40, and a pair of springs 20 are respectively connected to left and right sides of the carrier 30, wherein one part of each spring 20 is connected to the carrier 30, and the other part is connected to the base 40, thereby movably connecting the carrier 30 with the base 40.

Fig. 2 is a perspective view of the carrier 30, fig. 3 is a rear view of the carrier 30, and fig. 4 is a bottom view of the carrier 30. as shown in fig. 2 to 4, the carrier 30 includes a carrier body 31, the upper and front surfaces of the body 31 are provided with grooves 32, and the bottoms of the grooves 32 are formed with a slope 321, so that the cross-section of the grooves 32 is formed in a triangular shape as a whole to cooperate with the prism 20 such that the prism 20 is formed in a rectangular configuration as a whole when mounted in the grooves 32. The light enters from the upper surface of the prism 20 and exits the prism 20 from the front surface after passing through the prism 20.

Reed attaching portions 33 are provided on both sides of the body 31. The reed attaching portion 33 is integrally formed to protrude from both sides of the body 31. The reed fitting part is formed in a rectangular block shape as a whole and is parallel to the bottom of the base as a whole, so that the reed fitting part 33 is placed in a horizontal manner when mounted on the base 40. Front and rear ends of the upper surface of the reed mounting part are provided with a front projection 331 and a rear projection 332, which are fixedly connected to front and rear portions of the carrier connecting part of the reed 20, respectively. A side magnet mounting groove 341 is provided at the rear side of the main body 31, and the side magnet mounting groove 341 is located at the rear surface of the main body 31 to mount a side magnet. A bottom magnet mounting groove 343 is provided on the lower surface of the main body 31 to mount a bottom magnet.

With continued reference to fig. 2, the groove 32 is formed at both sides thereof with a blocking plate 361 and a blocking plate 362, the blocking plate 361 and the blocking plate 362 enclose the groove 32 from the left and right sides, and when the prism 20 is disposed in the groove 32, both sides of the prism are completely blocked by the

blocking plates

361 and 362, thereby protecting the prism 20. An avoiding groove 351 and an avoiding groove 352 are respectively formed at the tops of the blocking plate 361 and the blocking plate 362 to facilitate the insertion and removal of the prism 20 into and from the groove 32. A lower projection 37 is formed at the front of the bottom of the main body 31 to project downward to be fitted into a corresponding groove on the base 40.

Fig. 5 is a perspective view of the base 40. As shown in fig. 5, the base 40 includes a bottom portion 41 and a rear portion 42, a bottom coil escape groove 411 is provided in the middle of the bottom portion 41, and a front carrier escape groove 412 of the bottom portion 41. The bottom coil-avoiding slot 411 is for mating with a bottom coil on the circuit board 60, and the bottom carrier-avoiding slot 412 mates with the lower protrusion 37 of the carrier 40. A side circuit avoiding groove 43 is formed at the rear portion 42 of the base 40 to be matched with the side coil on the circuit board, and a carrier introduction groove 44 is formed above the side circuit avoiding groove 43 to facilitate the insertion or removal of the carrier 30.

With continued reference to fig. 5, the base spring mounting portion 45 is integrally extended upward from both ends of the base 41, a notch 453 is formed in the middle of the base spring mounting portion 45, the upper surface of the base spring mounting portion 45 is parallel to the base 41 and is formed with a spring front end fixing projection 451 and a spring rear end fixing projection 452 in the front and rear, and the front and rear

spring fixing projections

451 and 452 are located on the same horizontal surface so as to be parallel to the bottom of the base 40 when the spring 20 is mounted on the base 40. A post 46 is also provided forward of the spring mounting portion 45 at each end of the base 40, the height of the post 46 corresponding to the height of the rear portion 42 of the base 40, thereby supporting the housing 50 together.

To sum up, the utility model discloses a base 40 all is equipped with in bottom and lateral part and dodges the groove for place the lateral part coil and the bottom coil of circuit part. In addition, the bottom carrier avoiding groove has a certain effect of limiting the motion range of the carrier, and the carrier introducing groove is convenient for the carrier to be installed and also has a certain effect of limiting the motion range.

Figure 6 is a perspective view of the reed 20. As shown in figure 6, the spring plate 20 is integrally formed of a first portion 21 and a second portion 22 connected to each other, the first portion 21 being secured to the carrier 30 and the second portion 22 being secured to the base 40. Specifically, the rear end of the first portion 21 is provided with a rear carrier connection portion 211, the front end of the first portion 21 is provided with a front carrier connection portion 212, and the rear carrier connection portion 211 and the front carrier connection portion 212 are connected through a bent first elastic strip 213. Specifically, the middle of the bent first elastic strip 213 forms a lower case letter "m" bend, and forms a lower case letter "n" bend at both ends, and the "n" bends at both ends are opposite to the middle "m" bend. So set up, the reed is equipped with the center pin, can provide bigger deformation.

With continued reference to fig. 6, the second portion 22 is identical in shape and construction to and is oppositely disposed from the first portion, the second portion 22 being adapted for attachment to the base 40. Specifically, the rear end of the second portion 22 is provided with a rear base connecting portion 221, the front end of the second portion 22 is provided with a front base connecting portion 222, and the rear base connecting portion 221 and the front base connecting portion 222 are connected by a bent second elastic strip 223. Similar to the first portion, the middle portion of the second elastic strip 223 of the second portion 22 forms an m-shaped bent portion bent in a shape of a lower case letter "m", both ends of the second elastic strip 223 form n-shaped bent portions bent in a shape of a lower case letter "n", and the n-shaped bent portions at both ends are opposite to the m-shaped bent portion at the middle.

With continued reference to figure 6, the m-fold of the first portion 21 and the m-fold of the second portion 22 of the leaf 20 are oppositely disposed and connected in between by a connecting portion 23, i.e., the m-fold of the first portion 21 and a portion of the m-fold of the second portion 22 are the connecting portion 23, and the connecting portion 23 constitutes a portion of the m-fold of the first portion 21 and a portion of the m-fold of the second portion 22, respectively.

Figure 7 is a perspective view of an assembly of the base 40, the reed 20 and the carrier 30 assembled together, and figure 8 is a front view of figure 7, as shown in figures 7-8, with the prism 10 mounted on the carrier 30, the carrier 30 in turn mounted on the base 40, and the reed 20 connecting the carrier 30 and the base 40. Specifically, the first rear end fixing portion 211 of the first part 21 of the reed 20 is fixed to the rear end fixing portion 331 of the carrier 30, and the front end fixing portion 222 of the first part 21 of the reed 20 is fixed to the front end fixing portion 332 of the carrier 30. The rear end fixing part 221 of the second part 22 of the reed 20 is fixed to the reed rear end fixing projection 451 of the base 40, and the front end fixing part 222 of the second part 22 of the reed 20 is fixed to the reed front end fixing projection 452 of the base 40, so that the carrier 30 and the base 40 are rotatably connected by the reed 20.

In the present invention, as shown in fig. 7 and 8, the rear end and the front end of the reed 20 are located on the same horizontal plane, that is, the reed 20 is arranged parallel to the bottom of the base 40, and the two sides of the groove 31 of the carrier 30 form a complete baffle, thereby realizing better protection effect and stronger stability for the prism 10. Furthermore, since the springs are mounted upright at 90 degrees, the springs 20 can be laid flat by laying the entire prism drive on their sides, facilitating manufacturing and processing, and allowing the housing to cover a large portion of the carrier, and providing easy close mounting with the base and greater overall reliability.

Fig. 9 is a perspective view of the circuit board 60. As shown in fig. 9, the circuit board 60 includes a vertical portion 61 and a horizontal portion 62. The inner surface of the vertical portion 61 is provided with a side coil 611 to cooperate with the side magnets 81 mounted to the sides of the carrier 30 and form an electromagnetic induction with the side magnets upon energization to drive the carrier 30 to rotate about the Y-axis. The upper surface of the horizontal portion 62 is provided with a bottom coil 621, the bottom coil 621 cooperates with a bottom magnet 82 arranged at the bottom of the carrier 30 and forms an electromagnetic induction with the bottom magnet upon energization to drive the carrier 30 to rotate about the X-axis.

In one embodiment, as shown in fig. 9, a sensor 622 may be disposed inside the bottom coil 621 so that the position of the bottom magnet of the carrier, and thus the carrier 30, is detected by the sensor 622.

Fig. 10 is a front view of a prism driving apparatus 100 according to an embodiment of the present invention, and fig. 11 is a sectional view of the prism driving apparatus 100 of fig. 10. As shown in fig. 10 to 11 in conjunction with fig. 9, the magnet assembly 80 includes a side magnet 81 and a bottom magnet 82, the side magnet 81 being mounted in the side magnet mounting groove 341 of the carrier 30, and the bottom magnet 82 being mounted in the bottom magnet mounting groove 343 of the carrier 30. The side magnet 81 corresponds to the side coil 611 on the circuit board 60, the bottom magnet 82 corresponds to the bottom coil 622 of the circuit board 60, and the sensor 622 is located directly below the bottom magnet 82. When the bottom coil and the side coils are electrified, the driving is realized by pushing and pulling, so that the carrier rotates relative to two shafts of the base, and when the carrier is matched with other periscopic lens driving devices, better optical anti-shake and automatic focusing effects can be realized. In one embodiment, the side magnets are provided with patches, and the bottom magnets may be provided with or without patches, depending on the actual requirements.

To sum up, the utility model discloses an utilize two reeds to guarantee to reset to and inject motion range, reduce part quantity and simplify technology.

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

1. The prism driving device is characterized by comprising a carrier, a base, a reed and a circuit board, wherein the carrier is used for bearing a prism and is rotatably connected with the base through the reed, the circuit board is installed on the base and is provided with a bottom coil and a side coil, the bottom of the carrier is provided with a bottom magnet corresponding to the bottom coil, the side of the carrier is provided with a side magnet corresponding to the side coil, the bottom coil is matched with the bottom magnet, and the side coil is matched with the side magnet so as to drive the carrier to rotate relative to the base, and the reed is arranged in parallel to the bottom of the base.

2. The prism driving apparatus according to claim 1, wherein the carrier includes a main body, a middle portion of the main body is provided with a groove to be engaged with the prism, both sides of the main body are provided with reed mounts arranged in parallel with a bottom of the base.

3. The prism driving apparatus according to claim 2, wherein the spring mounting portion is integrally formed to protrude from both sides of the main body to both sides, and is provided with a protruding portion at an upper surface to be fixedly coupled with the carrier coupling portion of the spring.

4. The prism driving apparatus according to claim 2, wherein the rear side of the main body is provided with a side magnet mounting groove, and the lower surface of the main body is provided with a bottom magnet mounting groove, the prism driving apparatus further comprising a magnet group including a side magnet and a bottom magnet, the side magnet being mounted in the side magnet mounting groove of the carrier, and the bottom magnet being mounted in the bottom magnet mounting groove of the carrier.

5. The prism driving apparatus according to claim 1, wherein the base includes a bottom portion provided with a bottom coil avoiding groove to be engaged with the bottom coil on the circuit board, and a rear portion formed with a side coil avoiding groove to be engaged with the side coil on the circuit board.

6. The prism driving device according to claim 5, wherein both ends of the base portion integrally extend upward from a base spring mounting portion, and an upper surface of the base spring mounting portion is parallel to the base portion and has two protrusions for engaging with the springs.

7. The prism driving apparatus according to claim 1, wherein the circuit board includes a vertical portion and a horizontal portion, an inner surface of the vertical portion is provided with a side coil, the side coil is engaged with a side magnet mounted to a side portion of the carrier, an upper surface of the horizontal portion is provided with a bottom coil, the bottom coil is engaged with a bottom magnet disposed at a bottom portion of the carrier, and the bottom coil and the side coil are engaged with the side magnet and the bottom magnet, respectively, when being energized, to drive the carrier to rotate.

8. The prism drive apparatus according to claim 1, wherein the bottom coil is internally provided with a sensor cooperating with the bottom magnet to detect the position of the carrier bottom magnet.

9. The prism driver according to claim 1, further comprising a housing, wherein the upper surface and the front surface of the housing are notched to fit the upper surface and the front surface of the prism, and the housing fits the base to enclose the carrier, the spring plate, and the circuit board in a space defined by the housing and the base.

10. A prism assembly, wherein the prism assembly comprises a prism and the prism drive apparatus of any one of claims 1 to 9.