CN111555536A

CN111555536A - Motor assembling and fixing structure, voice coil motor, photographic device and electronic product

Info

Publication number: CN111555536A
Application number: CN202010517340.7A
Authority: CN
Inventors: 周良
Original assignee: New Shicoh Technology Co Ltd
Current assignee: New Shicoh Motor Co Ltd; New Shicoh Technology Co Ltd
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2020-08-18

Abstract

The invention discloses a motor assembly fixing structure, a voice coil motor, a photographic device and an electronic product, and the technical scheme is as follows: a motor assembling and fixing structure comprises a base, a carrier, an upper spring, a lower spring, a magnet and a coil, wherein four positioning columns are integrally formed on the base; the positioning columns are integrally formed to be provided with hot riveting columns, the outer connecting portions are provided with hot riveting holes corresponding to the hot riveting columns, the four positioning columns are connected with cover plates used for covering the outer connecting portions, and the cover plates and the positioning columns clamp and fix the outer connecting portions. According to the invention, the outer connecting part is clamped and fixed by the cover plate and the positioning column, so that the upper spring can be effectively fixed, the step of thermally riveting and fixing the upper spring on the positioning column is omitted, accurate positioning is realized, and the product quality is improved.

Description

Motor assembling and fixing structure, voice coil motor, photographic device and electronic product

Technical Field

The invention relates to the field of photographic equipment, in particular to a motor assembly fixing structure, a voice coil motor, a photographic device and an electronic product.

Background

The existing voice coil motor structure generally comprises a base 1, a carrier 2, a bracket, an upper spring 3, a lower spring 4 and a shell 36, wherein a lens 7 is installed on the carrier 2, the upper spring 3 is fixed on the bracket in a hot riveting mode, and the lower spring 4 is fixed on the base 1. The existing support and the base 1 are arranged in a split mode or the support and the base 1 are integrated into a whole, the support is provided with a hot riveting column 13, an upper spring 3 is provided with a hot riveting hole 14 which is sleeved with the hot riveting column 13, the hot riveting column 13 penetrates through the hot riveting hole 14 when the upper spring 3 is installed on the support, and then the hot riveting column 13 is subjected to hot riveting deformation to achieve the effect of fixing the upper spring 3.

Because current voice coil motor structure is little, and closely cooperate between a plurality of spare parts, it is little to lead to spring 3 hot riveting space, when carrying out the hot riveting operation, is difficult to operate. When the spring is subjected to hot riveting and fixing, the spring wrist part (between the spring cantilever and the spring connecting end) can rotate and deform relatively, and the use performance of the voice coil motor can be influenced.

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

Disclosure of Invention

The invention aims to provide a motor assembling and fixing structure, a voice coil motor, a photographic device and an electronic product.

The technical purpose of the invention is realized by the following technical scheme: a motor assembling and fixing structure comprises a base, a carrier, upper springs, lower springs, magnets and coils, wherein the lower springs are arranged between the lower end face of the carrier and the base, the base is integrally provided with four positioning columns which are uniformly distributed, the magnets are arranged in four and are positioned at the corner positions of the base and attached to the side walls of the positioning columns, the upper springs are arranged between the upper end faces of the positioning columns and the upper end face of the carrier, each upper spring comprises two upper spring subsections which are symmetrically arranged, each upper spring subsection comprises an inner connecting part connected to the carrier, an outer connecting part connected to the positioning columns and an upper cantilever arranged between the inner connecting part and the outer connecting part, and the outer connecting parts and the upper cantilevers are arranged in two and correspond to the positioning columns; the positioning columns are integrally formed with hot riveting columns, the outer connecting portions are provided with hot riveting holes corresponding to the hot riveting columns, the four positioning columns are connected with cover plates used for covering the outer connecting portions, and the cover plates and the positioning columns are clamped and fixed with the outer connecting portions.

The invention is further provided with: the end part of the cover plate facing the positioning column is integrally formed with a protruding part which is abutted to the outer connecting part, the protruding part is provided with a positioning groove corresponding to the hot riveting column, and the lower end face of the cover plate is attached to the upper end face of the magnet.

The invention is further provided with: the outer connecting portion is provided with a dispensing hole convenient for dispensing and fixing the positioning columns, one outer connecting portion of each upper spring subsection is provided with an electricity connecting hole, the positioning columns are connected with electricity connecting terminals, the electricity connecting terminals protrude out of the upper end faces of the positioning columns and penetrate through the corresponding electricity connecting holes, and dispensing grooves corresponding to the dispensing holes are formed in the positions which are not connected with the electricity connecting terminals.

The invention is further provided with: the carrier is integrally formed with a lens.

The invention is further provided with: carrier up end seted up two respectively with go up the winding groove that the spring subsection corresponds, two the winding groove supplies coil tip end of a thread to wear to establish the card respectively and goes into, go up spring subsection integrated into one piece have with the corresponding wire winding portion in winding groove, the fixed slot that conveniently supplies coil tip end of a thread to wind portion lateral wall around in, fixed slot opening direction is on a parallel with winding groove length direction, just the fixed slot is located winding portion is towards carrier center direction.

The invention is further provided with: the lower spring comprises a lower connecting ring connected to the lower end face of the carrier, four lower connecting portions arranged on the base and four lower cantilevers respectively arranged between the lower connecting portions and the lower connecting ring, the lower connecting portions are located under the magnets, the lower connecting portions are provided with fixing holes, and the base is integrally formed with fixing columns which penetrate through the fixing holes and fix the lower connecting portions.

The invention is further provided with: four assembling grooves are formed in the lower end face of the base and extend to the inner cavities of the positioning columns respectively.

The invention is further provided with: a voice coil motor is provided with the motor assembling and fixing structure and further comprises a shell, and the cover plate is abutted to the bottom surface of the shell.

The invention is further provided with: a photographic device is provided with the motor assembling and fixing structure.

The invention is further provided with: an electronic product is provided with the motor assembling and fixing structure.

In conclusion, the invention has the following beneficial effects:

when the spring is assembled, the inner connecting part of the spring is fixedly installed on the upper end face of the carrier, the outer connecting part is installed on the corresponding positioning column, the hot riveting column penetrates through the hot riveting hole, the position of the outer connecting part relative to the positioning column is located, then the cover plate covers the outer connecting part, the outer connecting part is clamped and fixed by the cover plate and the positioning column end face, the hot riveting step of the hot riveting column and the outer connecting part can be effectively avoided, the problem of difficulty in operation due to insufficient hot riveting space is effectively avoided, meanwhile, the problem of spring deformation during hot riveting can be avoided, positioning accuracy is achieved through the mode, and product quality and yield are improved.

The butt is ensured in outer connecting portion through the bellying to the apron, avoids outer connecting portion relative movement, wears to locate the constant head tank through the rivet hot post simultaneously, reaches the effect of location apron, avoids the adjacent rotatory activity of apron.

When the inner connecting part is fixed on the carrier, the riveting holes are penetrated through by the riveting columns and are subjected to hot riveting and fixing, and meanwhile, glue dispensing and fixing are carried out at the positions of the glue dispensing holes, so that the inner connecting part is fixed on the upper end face of the carrier.

When two ends of the coil are respectively connected with corresponding inner upper springs in a subsection mode, the end of the coil is firstly clamped into the winding groove, the end of the coil faces the lens direction, the end of the coil is turned back, the end of the coil is wound on the winding portion in a reverse mode, the end of the coil is clamped into the position of the fixing groove, the position of the end of the coil relative to the winding portion is effectively located, then the end of the coil and the position of the winding portion are subjected to electric welding and fixing, and therefore the end of the coil is connected with the winding portion, and meanwhile the electric welding position of the end of the coil and the electric welding position of; in addition, the coil wire head is reversely wound behind the wire winding part, and then the wire can be reversely pulled, so that the effect of tensioning the coil is realized, the condition that the coil is loosened and falls off is effectively avoided, and the product quality and the yield are further improved.

The cover plate is abutted to the bottom surface of the shell, so that the cover plate and the positioning column can be ensured to clamp the outer connecting part, and the cover plate and the outer connecting part are effectively limited to move relatively.

Drawings

FIG. 1 is a schematic view showing a structure of embodiment 1 with a cover plate hidden;

FIG. 2 is a sectional view of embodiment 1;

FIG. 3 is a schematic view showing the structure of an upper spring and a carrier in example 1;

FIG. 4 is a schematic structural view of a cover plate;

FIG. 5 is a schematic view of the upper spring;

FIG. 6 is a schematic view of the structure of the lower spring;

FIG. 7 is a schematic view of the structure of the base;

fig. 8 is an exploded view of example 2.

The corresponding part names indicated by the numbers in the figures: 1. a base; 2. a carrier; 3. an upper spring; 3-1, an upper spring subsection; 4. a lower spring; 5. a magnet; 6. a coil; 7. a lens; 8. a positioning column; 9. an assembly groove; 10. an inner connection portion; 11. an outer connecting portion; 12. an upper cantilever; 13. carrying out hot riveting on the column; 14. hot riveting holes; 15. a cover plate; 16. dispensing holes; 17. a boss portion; 18. positioning a groove; 19. a power connection hole; 20. an electric terminal is connected; 21. dispensing a glue groove; 22. riveting holes; 23. gluing holes; 24. an installation site; 25. riveting the column; 26. a winding slot; 27. a winding part; 28. fixing grooves; 29. a limiting bulge; 30. a containing groove; 31. a lower connecting ring; 32. a lower connecting portion; 33. a lower cantilever; 34. a fixing hole; 35. fixing a column; 36. a housing.

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.

Example 1: as shown in fig. 1 to 7, the motor assembly fixing structure provided by the present invention includes a base 1, a carrier 2, an upper spring 3, a lower spring 4, a magnet 5, and a coil 6, wherein in the embodiment, a lens 7 is integrally formed on the carrier 2, and the lens 7 and the carrier 2 are integrally formed, so as to reduce the number of parts. Lower spring 4 installs under carrier 2 between terminal surface and the base 1, and base 1 integrated into one piece has four reference column 8 that are evenly distributed, and magnetite 5 sets up to four and is located 1 corner position of base and laminates in reference column 8 lateral wall to upper spring 3 sets up between reference column 8 up end and carrier 2 up end. In addition, four assembling grooves 9 are formed in the lower end face of the base 1, and the four assembling grooves 9 respectively extend to the inner cavities of the positioning columns 8. The fixed base 1 can be conveniently positioned through the assembling groove 9, and subsequent assembling and processing are facilitated.

The upper spring 3 comprises two upper spring subsections 3-1 which are symmetrically arranged, and the two upper spring subsections 3-1 are arranged at intervals. Each upper spring subsection 3-1 includes an inner connection portion 10 installed on the carrier 2, an outer connection portion 11 installed on the positioning column 8, and an upper suspension arm 12 connected between the inner connection portion 10 and the outer connection cloth, wherein the outer connection portion 11 and the upper suspension arm 12 are both provided in two and correspond to the positioning column 8. Reference column 8 integrated into one piece has hot riveting post 13, and hot riveting post 13 is vertical setting, and outer connecting portion 11 is seted up with the corresponding hot riveting hole 14 of hot riveting post 13, and four reference columns 8 are connected with the apron 15 that is used for covering four outer connecting portions 11, and apron 15 and the fixed outer connecting portion 11 of reference column 8 centre gripping.

When assembling spring 3, the internal connection portion 10 of spring 3 is fixed on the upper end face of carrier 2, and external connection portion 11 is installed on corresponding positioning column 8, so that hot riveting column 13 is arranged in hot riveting hole 14 in a penetrating manner, the position of external connection portion 11 relative to positioning column 8 is located, then cover plate 15 is covered on external connection portion 11, external connection portion 11 is clamped and fixed by cover plate 15 and positioning column 8 end face, and the step of hot riveting column 13 and external connection portion 11 can be effectively avoided, the problem of difficulty in operation due to insufficient hot riveting space is effectively avoided, and meanwhile, the problem of spring deformation during hot riveting can be avoided.

In this embodiment, a protrusion 17 abutting against the external connection portion 11 is integrally formed at an end portion of the cover plate 15 facing the positioning column 8, the protrusion 17 is provided with a positioning groove 18 corresponding to the hot riveting column 13, and a lower end surface of the cover plate 15 is attached to an upper end surface of the magnet 5. That is, the cover plate 15 is abutted to the outer connecting portion 11 through the protruding portion 17, so as to prevent the outer connecting portion 11 from moving relatively, and meanwhile, the positioning groove 18 is penetrated through the hot riveting column 13, so that the effect of positioning the cover plate 15 is achieved, and the adjacent rotary movement of the cover plate 15 is avoided.

The outer connecting portion 11 is provided with dispensing holes 16 convenient for dispensing and fixing with the positioning columns 8, one outer connecting portion 11 of each upper spring subsection 3-1 is provided with electric connection holes 19, two of the positioning columns 8 are connected with electric connection terminals 20, the two electric connection terminals 20 are respectively connected with the two upper spring subsections 3-1, the electric connection terminals 20 protrude out of the upper end faces of the positioning columns 8 and penetrate through the corresponding electric connection holes 19, and dispensing grooves 21 corresponding to the dispensing holes 16 are formed in the positions where the electric connection terminals 20 are not connected. The position of the external connection part 11 can be further fixed through the glue dispensing hole 16 and the glue dispensing groove 21, and the fixing strength of the external connection part 11 is also improved through the connection of the electric connection hole 19 and the electric connection terminal 20.

In order to fix the inner connecting portion 10, a mounting portion 24 is integrally formed between the inner connecting portion 10 and the upper suspension arm 12, the mounting portion 24 is provided with a riveting hole 22 and an upper glue hole 23, and the carrier 2 is integrally provided with a riveting column 25 for sleeving the riveting column 25. When the inner connection portion 10 is fixed to the carrier 2, the inner connection portion 10 is fixed to the upper end surface of the carrier 2 by inserting the riveting posts 25 into the riveting holes 22 and performing hot riveting and fixing, and simultaneously performing dispensing and fixing at the positions of the dispensing holes 23.

In order to facilitate the connection of the end of the coil 6 with the upper spring subsection 3-1, the upper end surface of the carrier 2 is provided with two winding grooves 26 respectively corresponding to the two inner connecting parts 10, and the two winding grooves 26 are respectively used for the penetration of the ends of the coil 6; each inner connecting portion 10 is integrally formed with a winding portion 27, the winding portion 27 is located right above the winding slot 26, the winding portion 27 is located at an end portion of the inner connecting portion 10, and the winding portions 27 of the two inner connecting portions 10 are oppositely arranged. And the side wall of the winding part 27 is provided with a fixing groove 28 around which the coil 6 is wound, the fixing groove 28 is arranged in a U shape, the opening of the fixing groove 28 is parallel to the length direction of the winding groove 26, and the fixing groove 28 is positioned in the direction of the center of the carrier 2 of the winding part 27. When the two ends of the coil 6 are respectively connected with the corresponding inner upper spring subsection 3-1, the end of the coil 6 is firstly clamped into the winding groove 26, the end of the coil 6 faces the lens 7, then the end of the coil 6 is turned back, the end of the coil is reversely wound on the winding part 27, the end of the coil is clamped into the position of the fixing groove 28, the position of the end of the coil 6 relative to the winding part 27 is effectively positioned, then the end of the coil and the position of the winding part 27 are subjected to electric welding and fixing, so that the connection of the end of the coil 6 and the winding part 27 is realized, and meanwhile, the electric welding position of the end of the coil and the winding part 27 is effectively determined; in addition, the wire end of the coil 6 is reversely wound on the winding part 27, and then the reverse wire drawing can be performed, so that the effect of tensioning the coil 6 is realized, the situation that the coil 6 is loosened and falls off is effectively avoided, and the product quality and the yield are further improved.

The upper end face of the carrier 2 is integrally formed with a limiting protrusion 29 for limiting the position of the inner connecting part 10, a cavity for clamping the inner connecting part 10 is formed between the limiting protrusion 29 and the side wall of the lens 7, the inner connecting part 10 is clamped, and the position of the inner connecting part 10 is effectively limited and positioned. The carrier 2 is further provided with a containing groove 30 for the upper cantilever 12 to move up and down.

The lower spring 4 comprises a lower connecting ring 31 connected to the lower end face of the carrier 2, four lower connecting portions 32 arranged on the base 1, and four lower cantilevers 33 respectively arranged between the lower connecting portions 32 and the lower connecting ring 31, the lower connecting portions 32 are located under the magnets 5, fixing holes 34 are formed in the lower connecting portions 32, and fixing columns 35 penetrating through the fixing holes 34 and fixing the lower connecting portions 32 are integrally formed on the base 1.

Example 2: as shown in fig. 8, the voice coil motor has the motor assembly fixing structure of embodiment 1, and further includes a housing 36, wherein an end of the housing 36 abuts against the base 1, and a cover plate 15 abuts against a bottom surface of the housing 36, a side wall of the cover plate 15 abuts against an inner side wall of the housing 36, and the bottom surface of the housing 36 abuts against the cover plate 15, so that the cover plate 15 and the positioning column 8 can be ensured to clamp the external connection portion 11, and relative movement of the cover plate 15 and the external connection portion 11 can be effectively limited.

Example 3: a camera device has the motor assembly fixing structure of embodiment 1.

Example 4: an electronic product has the motor assembly fixing structure of embodiment 1.

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 motor equipment fixed knot constructs, includes base (1), carrier (2), goes up spring (3), lower spring (4), magnetite (5), coil (6), its characterized in that: the lower spring (4) is arranged between the lower end surface of the carrier (2) and the base (1), the base (1) is integrally formed with four positioning columns (8) which are uniformly distributed, the four magnets (5) are arranged at the corner positions of the base (1) and attached to the side walls of the positioning columns (8), the upper spring (3) is arranged between the upper end surface of the positioning column (8) and the upper end surface of the carrier (2), the upper spring (3) comprises two upper spring subsections (3-1) which are symmetrically arranged, each upper spring subsection (3-1) comprises an inner connecting part (10) connected with the carrier (2), an outer connecting part (11) connected with the positioning column (8) and an upper suspension arm (12) arranged between the inner connecting part (10) and the outer connecting part (11), the outer connecting part (11) and the upper suspension arm (12) are arranged in two and correspond to the positioning column (8); the positioning columns (8) are integrally formed with hot riveting columns (13), the outer connecting portions (11) are provided with hot riveting holes (14) corresponding to the hot riveting columns (13), the four positioning columns (8) are connected with cover plates (15) used for covering the outer connecting portions (11), and the cover plates (15) and the positioning columns (8) are clamped and fixed with the outer connecting portions (11).

2. The motor assembling and fixing structure of claim 1, wherein: the end part, facing the positioning column (8), of the cover plate (15) is integrally provided with a protruding part (17) abutted against the outer connecting part (11), the protruding part (17) is provided with a positioning groove (18) corresponding to the hot riveting column (13), and the lower end face of the cover plate (15) is attached to the upper end face of the magnet (5).

3. The motor assembling and fixing structure of claim 1, wherein: the convenient point that glues fixed point is glued in reference column (8) point is seted up in outer connecting portion (11) convenient with hole (16) is glued in reference column (8), and every outer connecting portion (11) of going up spring subsection (3-1) have been seted up and have been connect electric hole (19), wherein two reference column (8) are connected with electrical connection terminal (20), electrical connection terminal (20) protrusion in reference column (8) up end and wear to locate corresponding electricity in hole (19), not be connected with electrical connection terminal (20 seted up with point gluey groove (21) that the hole (16) corresponds is glued to the point.

4. The motor assembling and fixing structure of claim 1, wherein: the carrier (2) is integrally formed with a lens (7).

5. The motor assembling and fixing structure of claim 1, wherein: carrier (2) up end seted up two respectively with go up winding groove (26) that spring subsection (3-1) corresponds, two winding groove (26) supply coil (6) tip end of a thread to wear to establish the card respectively and go into, go up spring subsection (3-1) integrated into one piece have with winding groove (26) corresponding winding portion (27), winding portion (27) lateral wall is seted up and is conveniently supplied coil (6) tip end of a thread to wind fixed slot (28) in, fixed slot (28) opening direction is on a parallel with winding groove (26) length direction, just fixed slot (28) are located winding portion (27) are towards carrier (2) central direction.

6. The motor assembling and fixing structure of claim 1, wherein: the lower spring (4) comprises a lower connecting ring (31) connected to the lower end face of the carrier (2), four lower connecting portions (32) arranged on the base (1), and four lower cantilevers (33) respectively arranged between the lower connecting portions (32) and the lower connecting ring (31), the lower connecting portions (32) are located under the magnets (5), fixing holes (34) are formed in the lower connecting portions (32), and fixing columns (35) penetrating through the fixing holes (34) and fixing the lower connecting portions (32) are integrally formed in the base (1).

7. The motor assembling and fixing structure of claim 1, wherein: four assembling grooves (9) are formed in the lower end face of the base (1), and the four assembling grooves (9) respectively extend to the inner cavity of the positioning column (8).

8. A voice coil motor, comprising: the motor assembling and fixing structure according to any one of claims 1 to 6, further comprising a housing (36), wherein the cover plate (15) abuts against a bottom surface of the housing (36).

9. A photographic apparatus, characterized in that: the motor assembly fixing structure of any one of claims 1 to 6.

10. An electronic product, characterized in that: the motor assembly fixing structure of any one of claims 1 to 6.