CN112946854A

CN112946854A - Winding post structure, carrier, lens driving device, camera device and electronic product

Info

Publication number: CN112946854A
Application number: CN202110363603.8A
Authority: CN
Inventors: 靖二勇; 易长飞
Original assignee: New Shicoh Technology Co Ltd
Current assignee: New Shicoh Technology Co Ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-06-11
Anticipated expiration: 2041-04-02
Also published as: CN112946854B

Abstract

The invention discloses a winding post structure, a carrier, a lens driving device, a photographic device and an electronic product, and the key points of the technical scheme are as follows: the utility model provides a wrapping post structure, is including the fixed part that is fixed in the carrier, the one end integrated into one piece that the fixed part deviates from the carrier has the winding portion that supplies the winding of coil end portion winding, winding portion cross sectional area is less than fixed part cross sectional area, the one end that the fixed part was kept away from to the winding portion sets up anticreep portion, anticreep portion is towards a side surface of pad and the surface of the coil end of being less than winding portion position towards the pad, the interval is greater than between the wall of anticreep portion both sides interval between the wall, the fixed part towards the pad the surface be higher than the coil end of winding portion position or with the coil end of winding portion. The invention effectively avoids the phenomenon that the bonding pad is warped due to excessive solder paste during soldering, controls the flow direction of the solder paste and ensures that the center of gravity of the carrier after soldering is positioned at the center of the carrier.

Description

Winding post structure, carrier, lens driving device, camera device and electronic product

Technical Field

The invention relates to the field of photographic equipment, in particular to a winding post structure, a carrier, a lens driving device, a photographic device and an electronic product.

Background

The conventional lens driving device mainly includes a housing, a base, a carrier, a spring (lower spring, upper spring), a magnet, and a coil. The coil generally winds around the carrier and is electrically communicated with the spring, the spring is provided with a bonding pad, the carrier is provided with a winding post for winding the end part of the coil, and the bonding pad is connected with and fixed to the coil through soldering tin between the bonding pad and the winding post.

When soldering tin between wrapping post and pad, the solder paste leads to the pad to rise to stick up too much easily to lead to the pad to be higher than the spring surface, influence lens drive arrangement assembly, perhaps the solder paste flows toward the both sides of end of a thread position, and the solder paste flow direction is difficult to control, leads to the skew of carrier focus easily, influences lens drive arrangement's precision.

Therefore, there is a need for an improved structure that overcomes the above-mentioned deficiencies.

Disclosure of Invention

The invention aims to provide a winding post structure, a carrier, a lens driving device, a photographic device and an electronic product, which effectively avoid the phenomenon that a bonding pad is warped due to excessive solder paste during soldering, control the flow direction of the solder paste and ensure that the center of gravity of the carrier after soldering is positioned at the center of the carrier.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides a wrapping post structure, is including the fixed part that is fixed in the carrier, the one end integrated into one piece that the fixed part deviates from the carrier has the winding portion that supplies the winding of coil end portion winding, winding portion cross sectional area is less than fixed part cross sectional area, the one end that the fixed part was kept away from to the winding portion sets up anticreep portion, anticreep portion is towards a side surface of pad and the surface of the coil end of being less than winding portion position towards the pad, the interval is greater than between the wall of anticreep portion both sides interval between the wall, the fixed part towards the pad the surface be higher than the coil end of winding portion position or with the coil end of winding portion.

The invention is further provided with: the two side walls of the anti-falling part are respectively flush with the corresponding side walls of the fixing part.

The invention is further provided with: the surface of the fixing part facing the bonding pad is provided with a tin storage groove for storing tin paste, the tin storage groove is communicated with the end face of the fixing part far away from one end of the carrier, and the tin storage groove is flush with or higher than the surface of the winding part.

The invention is further provided with: the surface of the fixing part facing the pad is flush with the surface of the carrier abutting against the corresponding spring.

The invention is further provided with: the utility model provides a carrier, has foretell wrapping post structure, still includes the carrier body, carrier body integrated into one piece has the step portion of being connected with the fixed part, the step portion extends to the fixed part and is close to in wrapping portion one end position, around the coil end of a thread in wrapping portion laminate in step portion.

The invention is further provided with: the winding post structures are arranged into two groups and symmetrically arranged on two side walls of the carrier body.

The invention is further provided with: a lens driving device is provided with the carrier.

The invention is further provided with: a photographic apparatus is provided with the lens driving device.

The invention is further provided with: an electronic product is provided with the camera device.

In conclusion, the invention has the following beneficial effects:

when the coil and a bonding pad of the spring are fixed through soldering tin, the coil wire end is wound at the position of the wire winding part, and after the wire end is wound at the wire winding part, the wire end is close to the surface of the bonding pad, is lower than the fixed part and higher than the surface of the anti-falling part, namely, a break difference is formed between the fixed part and the anti-falling part; in addition, the anti-falling part is wider than the winding part, so that the thread end wound on the winding part is effectively prevented from falling off from the anti-falling part.

The surface of the pad is flushed with the winding part through the anti-falling part, the side wall of the anti-falling part is flushed with the side wall of the fixing part, the integral injection molding of the winding post is facilitated, and the injection molding difficulty of the winding post is reduced.

The tin cream part between end of a thread and the pad flows into to depositing the tin bath in to the realization is fixed with the tin cream in the wrapping post, and increases tin cream and end of a thread and wrapping post area of contact, effectively promotes welding strength, can confirm in addition that the flow goes into to deposit the tin bath two, avoids influencing carrier focus position.

Through step portion and the integrative joint strength who moulds plastics of fixed part, effectively increase wrapping post and carrier to reduce the wrapping post injection moulding degree of difficulty simultaneously, make things convenient for the coil end of a thread to wind in winding portion through step portion in addition.

Drawings

FIG. 1 is a schematic view showing the connection of embodiment 1 with a bonding pad and a coil terminal;

FIG. 2 is a first cross-sectional view of the connection of embodiment 1 with a bonding pad and a coil terminal;

FIG. 3 is a schematic view of example 1;

FIG. 4 is an enlarged view of section A of FIG. 3;

FIG. 5 is a first cross-sectional view of the connection of embodiment 1 with a bonding pad and a coil terminal;

FIG. 6 is an enlarged view of section B of FIG. 5;

FIG. 7 is a schematic view of example 2;

FIG. 8 is an enlarged view of section C of FIG. 7;

FIG. 9 is a schematic view of example 3;

FIG. 10 is a schematic view of example 4

FIG. 11 is a schematic view of example 5.

The corresponding part names indicated by the numbers in the figures: 1. a fixed part; 2. a winding part; 3. an anti-drop part; 4. a tin storage tank; 5. a carrier body; 6. a step portion.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the invention is further described with reference to the figures and the specific embodiments.

As shown in fig. 1 to 6, the winding post structure proposed by the present invention includes a fixing portion 1 fixed to a carrier, wherein a surface of the fixing portion 1 facing a pad is flush with a surface of the carrier abutting against a corresponding spring, so as to determine that the surface of the pad facing the winding post is flush with the fixing portion 1. Fixed part 1 deviates from the one end integrated into one piece of carrier has the winding portion 2 that supplies the winding of coil tip, 2 cross sectional areas in winding portion are less than 1 cross sectional area in fixed worker's portion, and winding portion 2 is located 1 central point of fixed part and puts, the one end that fixed part 1 was kept away from in winding portion 2 sets up anticreep portion 3, and fixed part 1, winding portion 2, anticreep portion 3 are promptly and meet in proper order, and are and deviate from the central direction of carrier and arrange.

The anti-dropping part 3 faces one side surface of the pad and the coil end lower than the position of the winding part 2 faces the surface of the pad, the distance between the two side walls of the anti-dropping part 3 is larger than the distance between the two side walls of the winding part 2, namely, the two side walls of the anti-dropping part 3 protrude out of the winding part 2, and the surface of the fixing part 1 facing the pad is higher than the coil end of the winding part 2 or the coil end of the winding part 2. When soldering tin is used for fixing a coil and a bonding pad of a spring, the coil end is wound at the position of the winding part 2, and the end is wound behind the winding part 2, the end is close to the surface of the bonding pad and is lower than the fixing part 1 and higher than the surface of the anti-falling part 3, namely, a break difference is formed between the fixing part 1 and the anti-falling part 3, when soldering tin is used, excessive solder paste is difficult to enter the position of the fixing part 1, but the position of the winding part 2 flows into the anti-falling part 3, so that the flow direction of the solder paste is determined, the excessive solder paste is prevented from remaining between the end and the bonding pad, the gravity center deviation of a carrier after soldering tin is avoided, and meanwhile, the problem; in addition, the thread end wound on the winding part 2 is effectively prevented from falling off from the position of the anti-falling part 3 by the anti-falling part 3 being wider than the winding part 2.

In this embodiment, the surface of the selective anti-falling part 3 facing the pad is flush with the surface of the winding part 2, and two side walls of the anti-falling part 3 are flush with the corresponding side walls of the fixing part 1. Through the surface of anticreep portion 3 orientation pad flush with winding

portion

2 and 3 lateral walls of anticreep portion flush with 1 lateral wall of fixed part, the whole injection moulding of wrapping post of being convenient for has reduced the wrapping post injection moulding degree of difficulty.

In this embodiment, a solder storage groove 4 for storing solder paste is formed in a surface, facing a pad, of the fixing portion 1, the solder storage groove 4 is communicated with an end surface, far away from one end of the carrier, of the fixing portion 1, and the solder storage groove 4 is flush with the surface of the winding portion 2 or higher than the surface of the winding portion 2. Solder paste part between end of a thread and the pad flows into to depositing in tin groove 4 to the realization is fixed with solder paste in the wrapping post, and increases solder paste and end of a thread and wrapping post area of contact, effectively promotes welding strength, can confirm in addition that the inflow deposits two of solder paste of tin groove 4, avoids influencing carrier focus position.

Example 2: a carrier, as shown in fig. 7 and 8, has the winding post structure described in embodiment 1, and the winding post structures in this embodiment are arranged in two groups and are symmetrically arranged. The embodiment further comprises a carrier body 5, the carrier body 5 is integrally formed with a step portion 6 connected with the fixing portion 1, the step portion 6 extends to the end position of the fixing portion 1 close to the winding portion 2, and the coil end of the winding portion 2 is attached to the step portion 6.

Through

step portion

6 and 1 an organic whole of fixed part mould plastics, effectively increase the joint strength of wrapping post and carrier to reduce the wrapping post injection moulding degree of difficulty simultaneously, make things convenient for the coil end of a thread to wind in winding portion 2 through step portion 6 in addition.

Example 3: as shown in fig. 9, the lens driving device includes the carrier of embodiment 2, and specifically, the lens driving device includes the carrier body 5 and the winding post structure disposed on the carrier body 5 in embodiment 2. Through the lens driving device with the structure, the gravity center of the carrier is ensured to be positioned at the center of the carrier, the moving accuracy of the driving lens is improved, and the lens is ensured to move along the direction of the optical axis, so that the quality of picture shooting is effectively improved.

Example 4: a photographic apparatus, as shown in fig. 10, has the lens driving apparatus described in embodiment 3. In the embodiment, the corresponding lens is driven to move by the driving structure in the lens driving device to realize focusing, and after focusing, light rays enter the photoelectric sensor in the photographic device through the lens and then are converted into electric signals, so that the image of a collected picture is converted into electronic data, and the photographic function is realized. The lens driving device and the spring structure in the camera device of this embodiment are fully described in the foregoing, and are not described herein again.

Example 5: an electronic product, as shown in fig. 11, has the camera device described in embodiment 4. The electronic device in this embodiment may be a mobile phone, a tablet computer, a telephone watch, a security camera, a vehicle-mounted camera, or the like, that is, the camera device in embodiment 4 is correspondingly installed in the electronic device, so as to achieve the function of taking a picture or recording a video.

In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the purpose of clarity and convenience of description of the technical solutions, and thus, should not be construed as limiting the present invention.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a wrapping post structure, is including being fixed in fixed part (1) of carrier, its characterized in that: fixed part (1) is equipped with the winding portion (2) that supplies the winding of coil tip, the one end that fixed part (1) was kept away from in winding portion (2) sets up anticreep portion (3), anticreep portion (3) lateral wall protrusion in winding portion (2) lateral wall, fixed part (1) is higher than the coil end of a thread of winding portion (2) position or flushes with the coil end of a thread of winding portion (2) towards the surface of pad.

2. A wrapping post structure according to claim 1, characterized in that: two side walls of the anti-falling part (3) are respectively flush with corresponding side walls of the fixing part (1).

3. A wrapping post structure according to claim 1, characterized in that: the surface of the fixing portion (1) facing the pad is provided with a tin storage groove (4) used for storing tin paste, the tin storage groove (4) is communicated with the end face of the fixing portion (1) far away from one end of the carrier, and the tin storage groove (4) is flush with the surface of the winding portion (2) or higher than the surface of the winding portion (2).

4. A wrapping post structure according to claim 1, characterized in that: the surface of the fixing part (1) facing the pad is flush with the surface of the carrier abutting against the corresponding spring.

5. A carrier, characterized by: the winding post structure of any one of claims 1 to 4, further comprising a carrier body (5), wherein the carrier body (5) is integrally formed with a step part (6) connected to the fixing part (1), the step part (6) extends to a position of the fixing part (1) close to one end of the winding part (2), and a coil end wound on the winding part (2) is attached to the step part (6).

6. The carrier of claim 5, wherein: the winding post structures are arranged into two groups and symmetrically arranged on two side walls of the carrier body (5).

7. A lens driving device characterized in that: having the vector of claim 5 or 6.

8. A photographic apparatus, characterized in that: having a lens driving device as claimed in claim 7.

9. An electronic product, characterized in that: the camera device according to claim 8.