CN212969409U - Mounting structure of lower elastic sheet of voice coil motor, voice coil motor and lens module - Google Patents
Mounting structure of lower elastic sheet of voice coil motor, voice coil motor and lens module Download PDFInfo
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- CN212969409U CN212969409U CN202021102145.XU CN202021102145U CN212969409U CN 212969409 U CN212969409 U CN 212969409U CN 202021102145 U CN202021102145 U CN 202021102145U CN 212969409 U CN212969409 U CN 212969409U
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Abstract
The embodiment of the utility model provides a pair of mounting structure of shell fragment under voice coil motor includes: the carrier is provided with a winding column and an accommodating groove; and the receiving groove is located near the root of the wrapping post. When the lower elastic sheet is welded and installed on the carrier, the winding coil on the winding post is wound. And solder paste is spotted on the coil, extrudees the solder paste when lower shell fragment welding installation, and the solder paste can flow to all around, just can flow into the holding tank when flowing to carrier center direction, has reduced the risk that the solder paste spills over, has improved voice coil motor's reliability and precision.
Description
Technical Field
The utility model relates to the technical field of motors, particularly, relate to a mounting structure, voice coil motor and camera lens module of shell fragment under voice coil motor.
Background
Currently, a Voice Coil Motor (VCM) mainly functions to drive a lens to move, so as to perform close-range shooting and long-range shooting. A voice coil motor is a system consisting of a coil and a magnet. The electrified coil is subjected to ampere force in a magnetic field, so that the lens is driven to move in the direction of the optical axis. In the production process of the voice coil motor, the spring pieces can be installed and welded. Wherein, the installation of the lower spring plate still has larger defects. When the lower spring plate is soldered, the mode of firstly soldering paste and then mounting the lower spring plate is adopted. The lower spring plate can extrude the solder paste, so that the solder paste is easy to overflow; overflowing solder paste can cause particles to be generated, and the assembly precision between the lower elastic sheet and the carrier is influenced, so that the reliability of the voice coil motor is seriously influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present invention is to provide a mounting structure of a lower spring plate of a voice coil motor, a voice coil motor and a lens module, wherein the mounting structure is through setting up the holding tank on the carrier, and the problem of easily overflowing solder paste when the lower spring plate is installed in the prior art is solved.
In a first aspect, the present application provides the following technical solutions through an embodiment:
a mounting structure of a lower spring plate of a voice coil motor includes: the carrier, be provided with wrapping post and holding tank on the carrier, the holding tank is close to the root position of wrapping post.
Optionally, the holding groove includes a first notch and a second notch, the first notch and the second notch are communicated, the first notch is located on a first surface, the second notch is located on a second surface, and the first surface and the second surface are two adjacent surfaces on the carrier.
Optionally, the receiving groove includes a third notch, and an edge of the third notch is located on one side of the winding post.
Optionally, the receiving groove includes a fourth notch, a coil is wound on the winding post, and the coil does not block the fourth notch, wherein a lower edge of the fourth notch represents an edge of the fourth notch close to the winding post.
Optionally, the cross section of the accommodating groove perpendicular to the central axis of the carrier is square, triangular, semicircular or wedge-shaped.
Optionally, the method further includes: the lower elastic sheet and the coil wound on the winding post are formed, a connecting portion is formed on the lower elastic sheet and welded on the coil through solder paste, and a containing space for containing the solder paste is formed in the connecting portion.
Optionally, the connecting portion at least partially covers the coil, and the accommodating space is a through hole.
Alternatively, the winding posts are formed by outwardly protruding outer circumferential surfaces of the carrier, and the receiving grooves are formed by inwardly recessed outer circumferential surfaces of the carrier.
In a second aspect, based on the same inventive concept, the present application provides the following technical solutions through an embodiment:
a voice coil motor comprising the mounting structure of the lower spring plate of the voice coil motor as described in any one of the above first aspects.
In a third aspect, based on the same inventive concept, the present application provides the following technical solutions through an embodiment:
a lens module comprising the mounting structure of the lower spring plate of the voice coil motor according to any one of the above first aspects.
The utility model discloses in the mounting structure, voice coil motor and the camera lens module of the lower shell fragment of voice coil motor that provide, wherein mounting structure includes: the carrier is provided with a winding column and an accommodating groove; and the receiving groove is located near the root of the wrapping post. When the lower elastic sheet is welded and installed on the carrier, the winding coil on the winding post is wound. And solder paste is spotted on the coil, extrudees the solder paste when lower shell fragment welding installation, and the solder paste can flow to all around, just can flow into the holding tank when flowing to carrier center direction, has reduced the risk that the solder paste spills over, has improved voice coil motor's reliability and precision.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a mounting structure of a lower spring plate of a voice coil motor according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a first implementation of section A of FIG. 1;
FIG. 3 is a schematic diagram of a second implementation of section A of FIG. 1;
FIG. 4 is a schematic structural diagram of a third implementation of part A of FIG. 1;
FIG. 5 is a schematic diagram of a fourth implementation of section A in FIG. 1;
fig. 6 is a schematic structural view of another mounting structure of a lower spring plate of a voice coil motor according to a first embodiment of the present invention;
FIG. 7 is an enlarged view of portion B of FIG. 1;
fig. 8 is a schematic structural diagram of a first implementation manner of the connecting portion of the lower spring plate in the present invention;
fig. 9 is a schematic structural diagram of a second implementation manner of the connecting portion of the lower spring plate in the present invention;
fig. 10 is a schematic structural diagram of a third implementation manner of the connecting portion of the lower spring plate according to the present invention.
Icon: 100-a mounting structure; 10-a carrier; 101-a first surface; 102-a second surface; 11-wrapping posts; 12-accommodating grooves; 121-a first notch; 122-a second notch; 20-lower spring plate; 21-an accommodation space; 30-solder paste; 40-coil.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to which the reference is made must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
First embodiment
Referring to fig. 1, the present embodiment provides a mounting structure 100 for a lower spring plate of a voice coil motor, where the mounting structure 100 includes a carrier 10. The carrier 10 is provided with a winding post 11 and an accommodating groove 12, and the accommodating groove 12 is close to the root position of the winding post 11.
The carrier 10, i.e. the carrier in a voice coil motor, may be used for fixing the lens. A winding post 11 is provided on the carrier 10, and the winding post 11 is used to fix a coil 40 of the voice coil motor. When the mounting structure 100 is assembled, the coil 40 is wound around the winding post 11, and the solder paste 30 is dispensed; thereby, the winding post 11 is used as a welding position with the lower elastic sheet 20.
The lower spring plate 20 is pressed when being welded to the coil 40 on the winding post 11. The accommodating groove 12 provided in this embodiment can prevent the solder paste 30 from overflowing during the soldering process between the lower spring plate 20 and the coil 40 on the winding post 11. In this embodiment, the accommodating groove 12 can be implemented in various ways, as follows:
1. the holding tank 12 is a tank body with openings on both sides.
Referring to fig. 2, fig. 2 is an enlarged schematic view of a portion a in fig. 1. In one example, the receiving groove 12 includes a first notch 121 and a second notch 122. The first notch 121 is communicated with the second notch 122, the first notch 121 is located on the first surface 101, and the first surface 101 is a surface where the winding post 11 on the carrier 10 is located, that is, an outer circumferential surface of the carrier 10; the opening direction of the first notch 121 is the same or substantially the same as the length direction of the winding post 11. The second notch 122 is located on the second surface 102, and the second surface 102 is a surface adjacent to the surface on which the winding post 11 is located on the carrier 10. That is, the first surface 101 and the second surface 102 are two adjacent surfaces on the carrier 10. The edge of the first notch 121 is connected to a side of the winding post 11 to ensure that the solder paste 30 flows more easily into the receiving groove 12, as shown in fig. 2.
In addition, referring to fig. 3, fig. 3 shows another implementation structure of the portion a in fig. 1. The winding post 11 is wound with a coil 40, and the coil 40 does not block the first notch 121; specifically, an edge of the first notch 121 is flush with a plane formed on the outermost side of the surface of the coil 40 wound on the winding leg 11. The thickness of the groove is reduced while ensuring that the solder paste 30 flows more easily into the receiving groove 12.
2. The holding tank 12 is a tank body with an opening on one side.
Referring to fig. 4, fig. 4 shows another implementation structure of the portion a in fig. 1. In one example, the receiving groove 12 includes a third notch 123, the opening direction of the third notch 123 is the same or substantially the same as the length direction of the winding post 11, and the receiving groove 12 is close to the root position of the winding post 11. When the receiving groove 12 is provided, an edge of the third notch 123 is located on one side of the winding post 11, as shown in fig. 4. Thus, when the lower spring plate 20 is welded to the coil 40 on the winding post 11, the solder paste 30 will flow into the receiving groove 12 more easily.
Referring to fig. 5, fig. 5 shows another implementation structure of the portion a in fig. 1. In another example, the receiving groove 12 includes a fourth notch 124, and the opening direction of the fourth notch 124 is the same or substantially the same as the length direction of the winding post 11. The winding post 11 is wound with a coil 40, and the coil 40 does not block the fourth notch 124; specifically, the lower edge of the fourth notch 124 is flush with the plane formed on the outermost surface of the coil 40 wound on the winding leg 11, as shown in fig. 5. This ensures that when the lower spring plate 20 is soldered to the coil 40 on the winding post 11, the solder paste 30 will flow into the receiving groove 12 more easily, and the thickness of the slot is reduced. Wherein, the lower edge of the fourth notch 124 is an edge of the fourth notch 124 close to the winding post 11.
In this embodiment, the cross-sectional shape of the accommodating groove 12 can be square, and the cross-section is perpendicular to the central axis of the carrier. In addition, when the solder paste 30 is pressed to flow, the flow area tends to be gradually reduced. Therefore, the cross-sectional shape of the receiving groove 12 may be triangular, semicircular or wedge-shaped, which can reduce the size of the space for forming the receiving groove 12 on the carrier 10 and ensure the stability of the local structure of the carrier 10.
Further, referring to fig. 6 and 7, the mounting structure 100 of the lower spring plate of the voice coil motor in the embodiment may further include a lower spring plate 20, a connecting portion of the lower spring plate 20 is welded to the coil 40 through solder paste 30, and the coil 40 is wound on the winding post 11; the connecting portion is provided with an accommodating space 21 for accommodating solder paste 30. The accommodating space 21 enables the solder paste 30 to pass through the lower elastic sheet 20 in the process of being extruded, and the solder paste 30 is prevented from overflowing to the periphery.
Specifically, the accommodating space 21 may be a through hole, and the shape and size of the through hole are not particularly limited. For example, the through holes are strip-shaped holes, and the number of the through holes can be 2, 3, 4, and the like. Fig. 8 shows a schematic structural diagram of the lower spring plate 20 with 4 through holes. The receiving space 21 may also be a bar-shaped indentation. For example, the connecting portion is provided with an "E" shaped notch, as shown in fig. 9. The E-shaped gap is formed by two strip-shaped gaps; or the connecting part is provided with an I-shaped notch which is formed by a strip-shaped notch, as shown in figure 10.
In summary, the mounting structure 100 of the lower spring plate of the voice coil motor provided in this embodiment includes: a carrier 10 having a winding post 11 and an accommodating groove 12 formed thereon; and the receiving groove 12 is located near the root of the winding leg 11. When the lower elastic sheet 20 is soldered on the carrier 10, the coil 40 is wound on the post 11. And the solder paste 30 is dotted on the coil 40, the solder paste 30 is extruded when the lower elastic sheet 20 is welded and installed, the solder paste 30 can flow to the periphery, and can flow into the accommodating groove 12 when flowing towards the center direction of the carrier 10, so that the risk of overflowing of the solder paste 30 is reduced, and the reliability and the precision of the voice coil motor are improved.
Second embodiment
Based on the same inventive concept, in the present embodiment, a vcm is provided, which includes the mounting structure of the lower spring of the vcm as described in any one of the first embodiments. The voice coil motor can be applied to various lens modules. Since the voice coil motor in the present embodiment adopts the mounting structure in the first embodiment described above, the reliability of the voice coil motor is improved. In this embodiment, the parts that are not mentioned can be understood by referring to the first embodiment, and are not described again.
Third embodiment
Based on the same inventive concept, in this embodiment, a lens module is provided, which includes the mounting structure of the lower elastic sheet of the voice coil motor as described in any one of the first embodiments. The lens module in this embodiment can be applied to a tablet computer, a smart phone, a notebook computer, an intelligent robot, and the like. The lens module in the embodiment adopts the mounting structure in the first embodiment, so that the reliability and focusing precision of the lens module are improved. In this embodiment, the parts that are not mentioned can be understood by referring to the first embodiment, and are not described again.
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 (9)
1. The utility model provides a mounting structure of shell fragment under voice coil motor which characterized in that includes: the winding device comprises a carrier, a winding post and an accommodating groove, wherein the winding post and the accommodating groove are arranged on the carrier, and the accommodating groove is close to the root position of the winding post; the holding tank includes first notch and second notch, first notch with the second notch intercommunication, first notch is located the first surface of carrier, the second notch is located the second surface of carrier, the first surface with the second surface is two adjacent surfaces on the carrier.
2. The mounting structure according to claim 1, wherein the receiving groove includes a third notch, an edge of the third notch being located on one side of the winding post.
3. The mounting structure according to claim 1, wherein the receiving groove includes a fourth notch, a coil is wound on the winding post, and the coil does not block the fourth notch, wherein a lower edge of the fourth notch represents an edge of the fourth notch close to the winding post.
4. The mounting structure according to claim 1, wherein a cross section of the receiving groove perpendicular to the central axis of the carrier is square, triangular, semicircular, or wedge-shaped.
5. The mounting structure according to claim 1, further comprising: the lower elastic sheet and the coil wound on the winding post are formed, a connecting portion is formed on the lower elastic sheet and welded on the coil through solder paste, and a containing space for containing the solder paste is formed in the connecting portion.
6. The mounting structure according to claim 5, wherein the connecting portion at least partially covers the coil, and the accommodating space is a through hole.
7. The mounting structure according to claim 1, wherein the winding post is formed by an outer circumferential surface of the carrier being outwardly protruded, and the receiving groove is formed by an outer circumferential surface of the carrier being inwardly depressed.
8. A voice coil motor, characterized by comprising the mounting structure of the lower spring plate of the voice coil motor according to any one of claims 1 to 7.
9. A lens module comprising the mounting structure of the lower spring plate of the voice coil motor according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021102145.XU CN212969409U (en) | 2020-06-15 | 2020-06-15 | Mounting structure of lower elastic sheet of voice coil motor, voice coil motor and lens module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021102145.XU CN212969409U (en) | 2020-06-15 | 2020-06-15 | Mounting structure of lower elastic sheet of voice coil motor, voice coil motor and lens module |
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| CN212969409U true CN212969409U (en) | 2021-04-13 |
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| CN202021102145.XU Active CN212969409U (en) | 2020-06-15 | 2020-06-15 | Mounting structure of lower elastic sheet of voice coil motor, voice coil motor and lens module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113452178A (en) * | 2021-06-28 | 2021-09-28 | 新思考电机有限公司 | Carrier structure, lens driving device, camera device and electronic product |
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- 2020-06-15 CN CN202021102145.XU patent/CN212969409U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113452178A (en) * | 2021-06-28 | 2021-09-28 | 新思考电机有限公司 | Carrier structure, lens driving device, camera device and electronic product |
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