CN104218765B - The OIS loop construction of stabilization voice coil motor and processing technique thereof - Google Patents
The OIS loop construction of stabilization voice coil motor and processing technique thereof Download PDFInfo
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- CN104218765B CN104218765B CN201410446916.XA CN201410446916A CN104218765B CN 104218765 B CN104218765 B CN 104218765B CN 201410446916 A CN201410446916 A CN 201410446916A CN 104218765 B CN104218765 B CN 104218765B
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Abstract
The invention discloses OIS loop construction and the processing technique thereof of a kind of stabilization voice coil motor, it includes base plate, middle plate and coil.Described middle plate four limit extends outward coil plate respectively, etches two groups or more interconnective coil in coil plate, bends and make two groups or more coil overlap in coil plate, between two groups or more coil；Described base plate is superimposed on the bottom surface of middle plate, and the front and back of base plate is etched with wire respectively.The present invention etches two groups or more interconnective coil in the coil plate on middle plate, bend in coil plate, between two groups or more coil and make two groups or more coil overlap, owing to the present invention is in the case of coil diameter is relatively thick, coil turn needed for can driving according to OIS determines the group number etching coil in coil plate, the coil height overlapped successively is relatively low, small volume, greatly reduces the space that VCM takies.
Description
Technical field
The present invention relates to a kind of camera installation, particularly relate to OIS loop construction and the processing technique thereof of a kind of stabilization voice coil motor.
Background technology
In VCM industry, simple autofocus motor can not meet the requirement of taking pictures of mobile phone, the birth of OIS, it mobile phone photograph stabilization science and technology is a breakthrough the biggest, as shown in Figure 1, the stabilization voice coil motor commonly used includes flexible PCB 1 ', Magnet bearing 2 ', lower shell fragment 3 ', Magnet 4 ', support coil 5 ', support 6 ', upper shell fragment 7 ', upper cover 8 ', shell 9 ', alloyed copper wire 10 ', sensing components and parts 11 ', FP coil 12 ', wherein, flexible PCB 1 ' is an important component in OIS structure.It is to solve the problem of shake during taking pictures, i.e. carrying out offset correction in X-axis, Y direction.The hot-wire coil on flexible PCB 1 ' is utilized to produce Ampere force with Magnet 4 ' effect.When setting complete at the beginning of Ampere force, coil turn is required.Owing to VCM does less and less, can the space of coiling the least, so, each producer is all in research and development, in the least space, it is achieved the requirement in the number of turn.In addition, traditional FP coil assembles, its technique assembling flow path includes the operations such as the flexible PCB assembling with the assembling of tool, coil and the assembling of tool, coil and flexible PCB, whole technological process is the most numerous and diverse, difficult, owing to VCM is the highest to required precision, the packaging technology of this multipaths will necessarily produce error, and there is broken string risk, thus causing product yield low, its architectural feature needs the height space of about 0.7 ~ 0.8mm.
At present, this technical field leading technology is in Japan, use dual platen etching technique, traditional copper coil can be etched on circuit boards, coil diameter is minimum up to 0.017mm, and the minimum 0.017mm in gap, compared with traditional copper coil, on design space, much room, and the most accurate, saving on packaging technology has been reserved for OIS.Owing to production capacity is inadequate, it is higher in price, and not all VCM businessman can accept its cost pressure brought.Etch process at home is technically difficult to break through this limit, and (domestic current circuit board etching technique is coil diameter 0.03mm, gap 0.03mm), therefore, dealer is badly in need of solving relatively thick at coil diameter and in the case of producing and meeting the Ampere force required, reduces VCM(OIS) problem that takes up room.
Summary of the invention
It is an object of the present invention to provide the OIS loop construction of the stabilization voice coil motor of a kind of small volume.
Further object is that the OIS coil processing technique that a kind of manufacturing process simple stabilization voice coil motor is provided.
For achieving the above object, the technical solution of the present invention is:
The present invention is the OIS loop construction of a kind of stabilization voice coil motor, and it includes base plate, middle plate and coil；In the middle part of described middle plate, there is through hole, four limits of middle plate extend outward coil plate respectively, coil plate etches two groups or more interconnective coil, bends in coil plate, between two groups or more coil and make two groups or more coil overlap；Described base plate is superimposed on the bottom surface of middle plate, and base plate is etched with wire, and the two ends of wire are conductively connected with on middle plate one group one group of coil that is relative and that set in coil plate respectively so that two groups of relative coils connected in series.
The front and back of described base plate is etched with wire respectively, the two ends of the wire in described front are conductively connected with on middle plate one group one group of coil that is relative and that set in coil plate respectively, the two ends of the wire at the back side respectively with on middle plate another group two relative and set in coil plate another organize coils be conductively connected so that two groups of relative coils connected in series.
One group of described coil is that two coils etched respectively by coil plate front and back are constituted, and these two coils are conductively connected by the copper in thorough coil plate through hole or stannum.
Etch three groups of interconnective coils in described coil plate, overlap after three groups of coil bendings.
Two folding lines are preset in described coil plate, be positioned at two groups of coils in outside according to the folding line of inner side bend inwards the coil so that middle a group with inside coil overlapping, being positioned at outermost one group of coil, outwards to bend the coil so that outermost one group according to the folding line in outside overlapping with the coil of middle a group.
Described base plate and middle plate use double-faced flexible version.
The present invention is the OIS coil processing technique of a kind of stabilization voice coil motor, and it comprises the following steps: (1) four limits that middle plate punching becomes have outward extending coil plate and central authorities have the structure of through hole；(2) preset curve line in the outward extending coil plate of middle plate；(3) in the outward extending coil plate of middle plate, etch two groups or more coil, and each group coil is with folding line as demarcation line；(4) fold according to folding line, make coil be superimposed together successively；(5) base plate is fitted on middle plate by the way of bonding, make on middle plate relative to and the coil that sets is reached and is conductively connected.
Further, in step (3), at two coils that coil plate front and back etches respectively, these two coils are conductively connected by the copper in thorough coil plate through hole or stannum, and these two coils constitute one group of coil.
After using such scheme, the present invention etches two groups or more interconnective coil in the coil plate on middle plate, in coil plate, bend between two groups or more coil and make two groups or more coil overlap, owing to the present invention is in the case of coil diameter is relatively thick, coil turn needed for can driving according to OIS determines the group number etching coil in coil plate, the coil height overlapped successively is relatively low, small volume, greatly reduce VCM(OIS) space that takies, its architectural feature the most about needs 0.25mm, much room is saved for height of contour size.Meanwhile, the operation of manufacturing of present configuration is simplified, and product more Japanese in price is cheap a lot, can commercially obtain more competitiveness.
The present invention is further illustrated with specific embodiment below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the wheel body exploded view commonly using stabilization voice coil motor；
Fig. 2 is the assembling figure of the present invention；
Fig. 3 is the three-dimensional exploded view of the present invention；
Fig. 4 is the front view of plate in the present invention；
Fig. 5 is the rear view of plate in the present invention；
Fig. 6 is the front view of base plate of the present invention；
Fig. 7 is the rear view of base plate of the present invention；
Fig. 8 is first step schematic diagram of plate processing technology in the present invention；
Fig. 9 is the second step schematic diagram of plate processing technology in the present invention；
Figure 10 is the 3rd step schematic diagram of plate processing technology in the present invention.
Detailed description of the invention
One, structure
As shown in Figure 2 and Figure 3, the present invention is the OIS loop construction of a kind of stabilization voice coil motor, and it includes base plate 1, middle plate 2 and coil 3.
As Fig. 8 combines shown in Fig. 4, Fig. 5, described middle plate 2 is rectangle, and middle part has through hole 21, and four limits of middle plate extend outward coil plate 22 respectively, coil plate 22 etches three groups of interconnective coils 3, bends in coil plate 22, between three groups of coils 3 and make three groups of coils 3 overlapping.Concrete folding mode is: preset two folding lines 221,222 in coil plate 22, be positioned at two groups of coils 3 in outside according to the folding line 221 of inner side bend inwards the coil 3 so that middle a group with inside coil 3 overlapping (as shown in Figure 9), being positioned at outermost one group of coil 3, outwards to bend the coil 3 the making outermost one group coil 3 with middle a group according to the folding line 222 in outside overlapping.One group of described coil 3 is that two coils 31,32 etched respectively by coil plate 22 front and back are constituted, and these two coils 31,32 are conductively connected by the copper in thorough coil plate through hole or stannum.As shown in Figure 4, the winding mode of concrete three groups of coils 311,312,313 is: coil 311 from the A1 initial line in front around to A2, the A3 at A2 connection coil 311 back side, A3 initial line is around to the A4 of coil 312, the A5 in A4 connection coil 312 front, A7, the A7 initial line that A5 initial line connects coil 313 back side around to the A6 in coil 313 front, A6 terminates around to A8.Winding mode in other coil plate 22 is identical with this, repeats no more.A1, A15, B1, B15 in Fig. 4 is welded (as Fig. 7 shows) with correspondence position A1, A15, B1, the B15 on base plate 1 by the copper in plate through hole or stannum respectively, it is achieved electrical connection, reconnects corresponding pin foot.
Such as Fig. 3, Fig. 5, Fig. 6, shown in Fig. 7, described base plate 1 is superimposed on the bottom surface of middle plate 2, the A8 of plate 2 in Fig. 5, A9, B8, correspondence position A8 on base plate 1 in B9 Yu Fig. 7, A9, B8, B9 welds, realize conducting of base plate 1 and middle plate 2, wire 11 it is etched with respectively on base plate 1, 12, the two ends of wire 11 are conductively connected with one group of one group of coil 3 that is relative and that set in coil plate 22 on middle plate 2 respectively, i.e., A8 with A9 shown in Fig. 5 is connected, the two ends of wire 12 respectively with on middle plate 2 another group two relative and set in coil plate 22 another organize coils 3 be conductively connected, i.e., B8 with B9 shown in Fig. 5 is connected, relative two group coil 3 is connected.
Described base plate 1 and middle plate 2 use double-faced flexible version.
Two, technique
The present invention is the OIS coil processing technique of a kind of stabilization voice coil motor, and it comprises the following steps:
(1) as shown in Figure 8, four limits that middle plate 2 punching becomes are had an outward extending coil plate 22 and central authorities have the structure of through hole 21；
(2) preset curve line 221,222 in the middle outward extending coil plate of plate 2 22；
(3) as shown in Figure 4, the middle outward extending coil plate of plate 2 22 etches three groups of coils 3, and three groups of coils 3 are with folding line 221,222 as demarcation line；
(4) as shown in Fig. 8, Fig. 4, fold according to folding line 221,222, be positioned at two groups of coils 3 in outside according to the folding line 221 of inner side bend inwards the coil 3 so that middle a group with inside coil 3 overlapping (as shown in Figure 9), be positioned at outermost one group of coil 3 and outwards bend according to the folding line 222 in outside that the coil 3 the making outermost one group coil 3 with middle a group is overlapping makes coil 3 be superimposed together successively (as shown in Figure 10)；
(5) as it is shown on figure 3, base plate 1 is fitted on middle plate 2 by the way of bonding, make on middle plate 2 relative to and the coil 3 that sets is reached and is conductively connected.
It should be noted that the present embodiment is only as a example by two foldings, three groups of coil plate, may be designed as a folding, two groups of coils or the embodiment such as three foldings, four groups of coils according to present configuration, owing to structure is similar, repeat no more.
The emphasis of the present invention is that coil is etched on folding middle plate.
The above, it is only present pre-ferred embodiments, depending on the coil groups number of coil plate and number of folds can be according to needs, therefore can not limit, with this, the scope that the present invention implements, the equivalence change i.e. made according to scope of the present invention patent and description and modification, all should still remain within the scope of the patent.
Claims (8)
1. the OIS loop construction of a stabilization voice coil motor, it is characterised in that: it includes base plate, middle plate and coil；In the middle part of described middle plate, there is through hole, four limits of middle plate extend outward coil plate respectively, coil plate etches two groups or more interconnective coil, bends in coil plate, between two groups or more coil and make two groups or more coil overlap；Described base plate is superimposed on the bottom surface of middle plate, and base plate is etched with wire, and the two ends of wire are conductively connected with on middle plate one group one group of coil that is relative and that set in coil plate respectively so that two groups of relative coils connected in series.
The OIS loop construction of stabilization voice coil motor the most according to claim 1, it is characterized in that: the front and back of described base plate is etched with wire respectively, the two ends of the wire in described front are conductively connected with on middle plate one group one group of coil that is relative and that set in coil plate respectively, the two ends of the wire at the back side respectively with on middle plate another group two relative and set in coil plate another organize coils be conductively connected so that two groups of relative coils connected in series.
The OIS loop construction of stabilization voice coil motor the most according to claim 1, it is characterized in that: one group of described coil is that two coils etched respectively by coil plate front and back are constituted, and these two coils are conductively connected by the copper in thorough coil plate through hole or stannum.
The OIS loop construction of stabilization voice coil motor the most according to claim 1, it is characterised in that: etch three groups of interconnective coils in described coil plate, overlap after three groups of coil bendings.
The OIS loop construction of stabilization voice coil motor the most according to claim 3, it is characterized in that: in described coil plate, preset two folding lines, be positioned at two groups of coils in outside according to the folding line of inner side bend inwards the coil so that middle a group with inside coil overlapping, being positioned at outermost one group of coil, outwards to bend the coil so that outermost one group according to the folding line in outside overlapping with the coil of middle a group.
The OIS loop construction of stabilization voice coil motor the most according to claim 1, it is characterised in that: described base plate and middle plate use double-faced flexible plate.
7. the OIS coil processing technique of a stabilization voice coil motor, it is characterised in that: it comprises the following steps: (1) four limits that middle plate punching becomes have outward extending coil plate and central authorities have the structure of through hole；(2) preset curve line in the outward extending coil plate of middle plate；(3) in the outward extending coil plate of middle plate, etch two groups or more coil, and each group coil is with folding line as demarcation line；(4) fold according to folding line, make coil be superimposed together successively；(5) base plate is fitted on middle plate by the way of bonding, make on middle plate relative to and electrical connection reached by the coil that sets.
The OIS coil processing technique of stabilization voice coil motor the most according to claim 7, it is characterized in that: in step (3), at two coils that coil plate front and back etches respectively, these two coils are conductively connected by the copper in thorough coil plate through hole or stannum, and bending after current direction is consistent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410446916.XA CN104218765B (en) | 2014-09-04 | 2014-09-04 | The OIS loop construction of stabilization voice coil motor and processing technique thereof |
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| CN201410446916.XA CN104218765B (en) | 2014-09-04 | 2014-09-04 | The OIS loop construction of stabilization voice coil motor and processing technique thereof |
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| CN104218765A CN104218765A (en) | 2014-12-17 |
| CN104218765B true CN104218765B (en) | 2016-10-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110266949B (en) * | 2019-06-27 | 2021-06-08 | Oppo广东移动通信有限公司 | Coil structure, voice coil motor and camera module |
| CN110266923A (en) * | 2019-06-28 | 2019-09-20 | Oppo广东移动通信有限公司 | Voice coil motor, camera stabilization system, method and electronic equipment |
| CN113395447B (en) * | 2021-05-31 | 2023-04-04 | 江西晶浩光学有限公司 | Anti-shake mechanism, image pickup device, and electronic apparatus |
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