CN208110138U - A kind of lens carrier and double lens driving device - Google Patents

Abstract

The utility model provides a kind of lens carrier and double lens driving device, is related to miniature line motor technical field.Lens carrier includes carrier element and coil, carrier element includes outer peripheral surface and opposite first end face and second end face, the outer peripheral surface of carrier element offers annular groove, coil is wound in a ring groove, opposite both sides open up fluted in first end face, groove opposed annular slot is close to the center of carrier element, and groove is for accommodating yoke plate.Double lens driving device includes said lens carrier.Coil is set in annular groove, yoke plate is set in groove, is conducive to reinforce magnetic field locating for coil, improves the control precision to coil position, to improve the position control accuracy to carrier element.

Description

A kind of lens carrier and double lens driving device

Technical field

The utility model relates to miniature line motor technical fields, in particular to a kind of lens carrier and double lens Driving device.

Background technique

The working principle of lens driver is by allowing coil to generate according to certain to the coil power supply in lens carrier The magnetic field of frequency transformation, the magnetic field of transformation and magnet are mutually exclusive or attract, and make the coil in lens carrier by the work of magnetic force With lens carrier is connect with spring, lens carrier adjustment space position under the action of the elastic force of spring and magnetic force, realizes focusing Purpose.

But two simple lens driving devices are applied in dual camera mould group, there are the magnetic fields that each simple lens is formed Not strong, low to the position control accuracy of coil and lens defect, is unfavorable for the broad development of dual camera mould group technology.

Therefore, design a kind of double lens driving device, with improve electromagnetism in dual camera mould group it is weaker, to coil and thoroughly The position control accuracy of mirror is low, this is technical problem urgently to be resolved at present.

Utility model content

The purpose of this utility model is to provide a kind of lens carrier and double lens driving device, it is intended to improve double camera shootings Weaker, low to the position control accuracy of the coil and lens technical problem of electromagnetism in head mould group.

The first technical solution provided by the utility model：

A kind of lens carrier includes carrier element and coil, and the carrier element includes outer peripheral surface and opposite first end Face and second end face, the outer peripheral surface of the carrier element offer annular groove, and the coil is wrapped in the annular groove, described Opposite both sides open up fluted in first end face, and the relatively described annular groove of the groove is in the carrier element The heart, the groove is for accommodating yoke plate.

Further, the groove is communicated with the annular groove, and the coil forms the one side wall of the groove.

Further, the groove is through to the second end face from the first end face.

Further, the accommodating space of the groove is rectangular shape.

Further, the edge region of the first end face is the first depressed area, and first depressed area is for connecting Connect preceding spring leaf.

Further, the edge region of the second end face is the second depressed area, and second depressed area is for connecting Connect rear spring leaf.

Further, protrusion is provided in second depressed area, the protrusion is for spring leaf after fixing.

Further, it is opened up on the side wall of the annular groove there are two notch, the notch is through to from the annular groove The second end face, two notches are located at the opposite both sides of the second end face, and two notches are used for the line Two terminals of circle are drawn from the annular groove.

Further, the shape of the carrier element is in cube, and four Angle Positions of the carrier element offer Chamfering.

Second of technical solution provided by the utility model：

A kind of double lens driving device provides saturating including shell, preceding spring leaf, rear spring leaf and the first technical solution Mirror carrier, the preceding spring leaf, the rear spring leaf and the lens carrier are arranged in the shell, and the preceding spring leaf connects Connect on the inner surface of the shell and the first end face, it is described after spring leaf be connected to the inner surface of the shell with it is described In second end face.

Compared to existing lens carrier, the beneficial effect of lens carrier provided by the utility model is：

Firstly, both sides opposite in first end face open up fluted, for accommodating yoke plate, yoke plate can add groove Magnetic field locating for strong coil, improves the position control accuracy to coil and carrier element, is conducive to matching for dual camera mould group To modulation, keep the camera shooting performance of dual camera more superior.

Secondly, the outer peripheral surface of carrier element offers annular groove, coil winds in a ring groove, can be improved coil and carrying The firmness and stability installed on phosphor bodies guarantee that coil is powered the stability of the electric field to be formed, it is also ensured that coil exists The reliability of carrier element movement is driven in magnetic field.

Finally, coil winding is in a ring groove, yoke plate is contained in groove, is conducive to the compactedness for improving structure, is mentioned High assembly precision guarantees that the placement property of two lens carriers keeps maximum consistency.

Detailed description of the invention

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.

Fig. 1 is the overall structure diagram of double lens driving device provided by the embodiment of the utility model.

Fig. 2 is the decomposition texture schematic diagram of double lens driving device provided by the embodiment of the utility model.

Fig. 3 is the structural schematic diagram of magnet yoke ring in Fig. 2.

Fig. 4 is the structural schematic diagram at the first visual angle of lens carrier in Fig. 2.

Fig. 5 is the structural schematic diagram at second of visual angle of lens carrier in Fig. 2.

Icon：100- double lens driving device；10- shell；11- magnet yoke ring；111- roof；1111- through-hole；The side 112- Wall；113- yoke plate；12- terminal mounting；121- pad；122- electrical terminals；Spring leaf before 20-；30- lens carrier；31- is carried Phosphor bodies；311- first end face；The first depressed area 3111-；312- second end face；The second depressed area 3121-；313- protrusion； 314- notch；315- accommodating cavity；316- fin；317- annular groove；318- groove；32- coil；40- magnetite；Spring leaf after 50-.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.

Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all Belong to the range of the utility model protection.

It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.

In the description of the present invention, it should be understood that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, or The utility model product using when the orientation or positional relationship usually put or those skilled in the art usually understand Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified sets Standby or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model Limitation.

In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, it is not understood to indicate or imply Relative importance.

In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition Solve the concrete meaning of above-mentioned term in the present invention.

Fig. 1 and Fig. 2 are please referred to, a kind of double lens driving device 100, double lens driving device 100 are present embodiments provided Using the high pixel minitype digital camera for being not limited to that there is automatic focusing function.Double lens driving device 100 includes shell 10, preceding spring leaf 20, lens carrier 30, magnetite 40 and rear spring leaf 50, wherein shell 10 includes magnet yoke ring 11 and terminal mounting 12, terminal mounting 12 is detachably connected to the opening of magnet yoke ring 11.Lens carrier 30 includes carrier element 31 and is wrapped in Coil 32 on 31 outer peripheral surface of carrier element.

Magnetite 40 is mounted on the inside of magnet yoke ring 11, and a magnetite 40 is respectively arranged in the opposite sides of lens carrier 30.Preceding bullet Reed 20 is connected between magnet yoke ring 11 and lens carrier 30, rear spring leaf 50 be connected to lens carrier 30 and terminal mounting 12 it Between.Pad 121 and the electrical terminals being electrically connected with pad 121 122, bullet after coil 32 passes sequentially through are provided on terminal mounting 12 Reed 50, pad 121 and electrical terminals 122 are electrically connected with external power supply.

Referring to Fig. 3, magnet yoke ring 11 includes roof 111, side wall 112 and yoke plate 113, open up on roof 111 there are two Through-hole 1111, a yoke plate 113 is respectively arranged in the opposite both sides of each through-hole 1111, between yoke plate 113 and the long side of side wall 112 Every being arranged in parallel.A magnetite 40 is respectively set between the long side and yoke plate 113 of side wall 112.

Optionally, magnetite 40 is mounted on side wall 12.Two magnetites 40 and two opposite yoke plates 113 constitute a pair of of magnetic Field space, forms two pairs of magnetic field spaces in total.A pair of magnetic field space is used to control the displacement of a lens carrier 30.Two pairs of magnetic fields The magnitude of field intensity in space is consistent, and the placement property height of two groups of lens carriers 30 can be made consistent, be conducive to dual camera The modulation of mould group optimizes, and improves shooting performance.

Fig. 4 and Fig. 5 are please referred to, lens carrier 30 includes carrier element 31 and coil 32, and carrier element 31 includes outer peripheral surface And opposite first end face 311 and second end face 312, wherein first end face 311 is leaned on close to magnet yoke ring 11, second end face 312 Proximal end stroma frame 12.Preceding spring leaf 20 is connected in first end face 311, and rear spring leaf 50 is connected in second end face 312.

Accommodating cavity 315 is offered on carrier element 31, accommodating cavity 315 is through to second end face 312 from first end face 311, Accommodating cavity 315 is used for loading lens, and the outer peripheral surface of carrier element 31 offers annular groove 317, and coil 32 is wrapped in annular groove 317 Interior, opposite both sides open up fluted 318 in first end face 311, and 318 opposed annular slot 317 of groove is close to carrier element 31 Center, groove 318 is through to second end face 312 from first end face 311, and groove 318 is for accommodating yoke plate 113.

Groove 318 is communicated with annular groove 317, and coil 32 forms the one side wall 112 of groove 318.The accommodating space of groove 318 For rectangular shape.

The edge region of first end face 311 is the first depressed area 3111, and the first depressed area 3111 is for connecting preceding bullet Reed 20, preceding spring leaf 20 are connected to the first depressed area 3111, and mistake occurs for 20 opposite carrier main body 31 of spring leaf before capable of preventing Position phenomenon.

In addition, the shape of carrier element 31 is in cube, four Angle Positions of carrier element 31 offer chamfering.Accommodating Fin 316 is provided on the inner surface of chamber 315, fin 316 is close to second end face 312.Lens are packed into from 311 side of first end face It in accommodating cavity 315 and contradicts on fin 316, has the function that position lens.

Referring to Fig. 5, the edge region of second end face 312 is the second depressed area 3121, the second depressed area 3121 is used Spring leaf 50 after connection.Protrusion 313 is provided in second depressed area 3121, protrusion 313 is for being connected and fixed rear spring leaf 50. Spring leaf 50 is connected in the second depressed area 3121 and fixed by protrusion 313 afterwards, can prevent rear 50 opposite carrier of spring leaf Inconsistent phenomenon occurs for main body 31.

It is opened up on the side wall 112 of annular groove 317 there are two notch 314, notch 314 is through to second end from annular groove 317 Face 312, two notches 314 are located at the opposite both sides of second end face 312, and two notches 314 are used for two wiring of coil 32 End is drawn from annular groove 317, in order to which two terminals of coil 32 are electrically connected with the pad 121 on terminal mounting 12.

The working principle of double lens driving device 100 provided in this embodiment：

Firstly, two magnetites 40 produce magnetic field, the coil 32 in two groups of lens carriers 30 passes through two power connection ends respectively Son 122 accesses external power supply, and coil 32 senses that electromagnetic force moves by coil 32 when electric current.Then, coil 32 drives The movement of mirror carrier 30 as one kind, under the resilient force of preceding spring leaf 20 and rear spring leaf 50, lens carrier 30 occurs lens carrier 30 The straight-line displacement of front and back, lens are mounted in lens carrier 30, and lens are moved forward and backward with lens carrier 30.In addition, passing through control The size that each coil 32 passes through electric current is to accurately control the displacement of corresponding lens carrier 30, realizes the mesh precisely focused 's.

The beneficial effect of lens carrier 30 provided by the utility model is：

Firstly, both sides opposite in first end face 311 open up fluted 318, groove 318 is used to accommodate yoke plate 113, Yoke plate 113 can reinforce magnetic field locating for coil 32, improve the position control accuracy to coil 32 and carrier element 31, have It is modulated conducive to the pairing of dual camera mould group, keeps the camera shooting performance of dual camera more superior.

Secondly, the outer peripheral surface of carrier element 31 offers annular groove 317, coil 32 is wrapped in annular groove 317, Neng Gouti The firmness and stability that high coil 32 is installed on carrier element 31 guarantee the stability for the electric field that the energization of coil 32 is formed, It is also ensured that the reliability that coil 32 drives carrier element 31 to move in magnetic field.

Finally, coil 32 is wrapped in annular groove 317, yoke plate 113 is contained in groove 318, is conducive to improve structure Compactedness, improve assembly precision, guarantee that the placement property of two lens carriers 30 keeps maximum consistency.

The beneficial effect of double lens driving device 100 provided in this embodiment：

Firstly, double lens driving device 100 provided in this embodiment is not simply to close two single-lens driving devices And combine, but magnetic field is collectively formed using magnet yoke ring 11, preceding spring leaf 20 and two magnetites 40, also utilize magnetic yoke Ring 11 and terminal mounting 12 form integrated frame structure, further ensure the consistent of two groups of 30 placement properties of lens carrier Property, be conducive to the pairing modulation of dual camera mould group.

Secondly, 100 small volume of double lens driving device provided in this embodiment, can reduce required space.It is more important , magnet yoke ring 11, preceding spring leaf 20, rear spring leaf 50, magnetite 40 and terminal mounting 12 pass through while the components of production Processing, and assembled simultaneously, the dimensional accuracy of components can be made to the maximum extent consistent, thus, guarantee the position of two lens It moves characteristic and keeps maximum consistency.Meanwhile components cost and assembling cost can be also reduced to the maximum extent, and Improve production efficiency.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of lens carrier, which is characterized in that the lens carrier includes carrier element (31) and coil (32), the carrier Main body (31) includes outer peripheral surface and opposite first end face (311) and second end face (312), the carrier element (31) it is outer Circumferential surface offers annular groove (317), and the coil (32) is wrapped in the annular groove (317), on the first end face (311) Opposite both sides open up fluted (318), and the relatively described annular groove (317) of the groove (318) is close to the carrier element (31) center, the groove (318) is for accommodating yoke plate (113).

2. lens carrier according to claim 1, which is characterized in that the groove (318) and the annular groove (317) phase Logical, the coil (32) forms the one side wall of the groove (318).

3. lens carrier according to claim 2, which is characterized in that the groove (318) is from the first end face (311) It is through to the second end face (312).

4. lens carrier according to claim 2, which is characterized in that the accommodating space of the groove (318) is cuboid Shape.

5. lens carrier according to claim 1, which is characterized in that the edge region of the first end face (311) For the first depressed area (3112), first depressed area (3112) is for connecting preceding spring leaf (20).

6. lens carrier according to claim 1, which is characterized in that the edge region of the second end face (312) For the second depressed area (3121), second depressed area (3121) is for spring leaf (50) after connecting.

7. lens carrier according to claim 6, which is characterized in that be provided with protrusion in second depressed area (3121) (313), described raised (313) are for spring leaf (50) after fixing.

8. lens carrier according to claim 1, which is characterized in that offer two on the side wall of the annular groove (317) A notch (314), the notch (314) are through to the second end face (312) from the annular groove (317), and two described scarce Mouth (314) is located at the opposite both sides of the second end face (312), and two notches (314) are used for the coil (32) Two terminals are drawn from the annular groove (317).

9. lens carrier according to claim 1, which is characterized in that the shape of the carrier element (31) is in cube, Four Angle Positions of the carrier element (31) offer chamfering.

10. a kind of double lens driving device, including shell (10), preceding spring leaf (20) and rear spring leaf (50), which is characterized in that The double lens driving device (100) includes any lens carrier of claim 1 to 9, the preceding spring leaf (20), institute Rear spring leaf (50) and lens carrier setting are stated in the shell (10), the preceding spring leaf (20) is connected to the shell On the inner surface of body (10) and the first end face (311), the rear spring leaf (50) is connected to the interior table of the shell (10) On face and the second end face (312).