CN112701870B - Processing technology of voice coil motor coil support structure - Google Patents
Processing technology of voice coil motor coil support structure Download PDFInfo
- Publication number
- CN112701870B CN112701870B CN202011588779.5A CN202011588779A CN112701870B CN 112701870 B CN112701870 B CN 112701870B CN 202011588779 A CN202011588779 A CN 202011588779A CN 112701870 B CN112701870 B CN 112701870B
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- China
- Prior art keywords
- elastic sheet
- solder paste
- grooves
- groove
- wire material
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005516 engineering process Methods 0.000 title claims abstract description 14
- 229910000679 solder Inorganic materials 0.000 claims abstract description 56
- 239000000463 material Substances 0.000 claims abstract description 30
- 238000005476 soldering Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 238000002844 melting Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000002390 adhesive tape Substances 0.000 claims description 4
- 238000005530 etching Methods 0.000 claims description 3
- 238000007650 screen-printing Methods 0.000 claims description 3
- 239000012634 fragment Substances 0.000 abstract description 16
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 15
- 239000006071 cream Substances 0.000 abstract description 8
- 238000004880 explosion Methods 0.000 abstract description 4
- 239000011230 binding agent Substances 0.000 abstract description 3
- 239000012943 hotmelt Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000000977 initiatory effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000010665 pine oil Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
-
- H02K15/0068—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The invention discloses a processing technology of a coil support structure of a voice coil motor, which comprises the following steps: s10: two grooves are formed in the front face of the elastic sheet; s11: filling solder paste into the two grooves; s12: solidifying and bonding the solder paste in the groove; s13: covering the elastic sheet to the end face of the bracket body, and aligning the two grooves with the two binding posts wound with the wire materials respectively; s14: heating the elastic sheet, and melting the solder paste to bond the end of the wire material, the elastic sheet and the binding post. Use the tin cream as the binder, with its preinstallation in shell fragment department, the shell fragment lid is in stake body department back, the notch of recess is being covered, the tin cream is sheltered from in the recess, through heating up with the hot melt of tin cream to making the wire material bond together with the shell fragment, consequently need not to adopt the mode of soldering just can bond wire material and shell fragment, can not produce the problem that the tin cream splashes and pollutes the camera lens, guaranteed whole voice coil motor coil support structure's quality. The invention has the advantage of no solder paste splash or solder explosion.
Description
Technical Field
The invention relates to the field of coil support structure manufacturing, in particular to a processing technology of a coil support structure of a voice coil motor.
Background
The voice coil motor is one kind of motor and has the main principle that in one permanent magnetic field, the DC current of the coil in the coil support structure inside the motor is changed to control the stretching position of the elastic sheet and thus to drive the elastic sheet to move up and down.
In order to form a loop by winding the wire material into a coil in the voice coil motor, two ends of the wire material are required to be connected with the wire binding column and the elastic sheet.
Disclosure of Invention
Therefore, a processing technology of a coil support structure of a voice coil motor is needed to be provided, so that the problem that in the prior art, the end of a wire material can only be connected with an elastic sheet and a binding wire column in a soldering mode, and solder paste splashing or tin explosion can be generated is solved.
In order to achieve the above object, the inventor provides a processing technology of a coil support structure of a voice coil motor, comprising the following steps:
s10: two grooves are formed in the front face of the elastic sheet;
s11: filling solder paste into the two grooves;
s12: solidifying and bonding the solder paste in the groove;
s13: covering the elastic sheet to the end face of the bracket body, and aligning the two grooves with the two binding posts wound with the wire materials respectively;
s14: heating the elastic sheet, and melting the solder paste to bond the end of the wire material, the elastic sheet and the binding post.
In a preferred structure of the present invention, in step S10, a groove is formed by etching.
In a preferred structure of the present invention, in step S10, the grooves are arranged in a square shape, the length of the grooves is greater than 0.1mm, the width of the grooves is greater than 0.1mm, and the depth of the grooves is 0.01mm to 0.08 mm.
In a preferred configuration of the present invention, in step S11, solder paste is filled into the recess by screen printing.
In a preferred configuration of the present invention, in step S12, the solder paste is solidified and bonded in the grooves by reflow soldering.
As a preferred structure of the present invention, before step S12, the method further includes the steps of:
and sticking a high-temperature-resistant adhesive tape on the surface of the elastic sheet and leaking out of the groove.
As a preferred structure of the present invention, before step S13, the method further includes the steps of:
the end face of the bracket body is provided with a positioning protrusion, and the front side of the elastic sheet is provided with a positioning opening;
step S13 is:
the elastic sheet is covered to the end face of the support body, and the positioning protrusion penetrates into the positioning opening, so that the two grooves are respectively aligned with the two binding posts wound with the wire material.
As a preferable structure of the present invention, step S13 is preceded by the step of:
winding the starting end of the wire material at a wire binding column;
winding the wire material for a preset number of turns along the circumferential direction of the bracket body;
after the wire material with the preset number of turns is wound, the tail end of the wire material is wound at the other wire binding column.
As a preferable structure of the present invention, in the step S14, the elastic sheet is heated by laser or infrared ray.
Be different from prior art, above-mentioned technical scheme voice coil motor coil support structure processing technology, regard as the binder with the tin cream, with its preinstallation in shell fragment department, the shell fragment lid is behind stake body department, the notch of recess is being covered, the tin cream is sheltered from in the recess, through heating up with the hot melt of tin cream to making line material and shell fragment bond together, consequently need not to adopt the mode of soldering just can bond line material and shell fragment, can not produce the problem that the tin cream splashes and pollutes the camera lens, guaranteed whole voice coil motor coil support structure's quality.
Drawings
Fig. 1 is a flowchart illustrating a process of manufacturing a voice coil motor coil support structure according to an embodiment of the present invention;
fig. 2 is an exploded view of a voice coil motor coil support structure according to an embodiment of the present invention;
fig. 3 is a structural diagram of the elastic sheet according to an embodiment of the present invention, in which the back face of the elastic sheet faces upward;
fig. 4 is a structural diagram of a spring plate bonded with solder paste according to an embodiment of the invention;
FIG. 5 is a structural view of a stent body according to an embodiment of the present invention;
fig. 6 is a structural diagram of the elastic sheet covered on the bracket body according to an embodiment of the invention.
Description of reference numerals:
1. a stent body;
100. binding the wire column;
101. positioning a projection;
2. wire material;
200. a starting end; 201. a tail end;
3. a spring plate;
300. a groove;
301. tin paste;
302. the port is positioned.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
The invention provides a processing technology of a coil support structure of a voice coil motor, which is used for processing the coil support structure of the voice coil motor, particularly, a tin soldering mode is not needed, the problem of tin oil and tin slag generation can be avoided, and the quality of the coil support structure of the voice coil motor can be ensured.
Referring to fig. 1 to 4, in an embodiment, the processing of the voice coil motor coil support structure includes the following steps:
s10: two grooves 300 are formed in the front face of the elastic sheet 3;
s11: filling solder paste 301 into the two grooves 300;
s12: solidifying and bonding the solder paste 301 in the groove 300;
s13: covering the elastic sheet 3 to the end face of the bracket body 1, and aligning the two grooves 300 with the two binding posts 100 wound with the wire 2 respectively;
s14: heating the elastic sheet 3, and melting the solder paste 301 to bond the end part of the thread material 2, the elastic sheet 3 and the thread binding post 100.
Since the solder paste 301 serving as the adhesive needs to be embedded in the elastic sheet 3 and the solder paste 301 is isolated from the outside in the subsequent processing and production processes, the groove 300 needs to be formed in the front surface of the elastic sheet 3, that is, step S10.
Because the initiating terminal 200 of line material 2 winds in a binding post 100 department, the end 201 of line material 2 winds in another binding post 100 department, and line material 2 needs and shell fragment 3 formation return circuit, therefore, need the initiating terminal 200 of line material 2, end 201 all need bond with shell fragment 3, therefore, recess 300 need be opened two, and the position that two recess 300 seted up is the front department of shell fragment 3, two recess 300 are in the concrete position of shell fragment 3 department, when the terminal surface of the support body 1 is covered for the front of shell fragment 3, two binding post 100 respectively just right position departments, namely when the terminal surface of support body 1 is covered to the front of shell fragment 3, a recess 300 is just to a binding post 100 department, another recess 300 is just to another binding post 100 department.
The stent body 1 used in the processing technology is as follows: the binding post 100 is close to one end face of the support body 1 for contacting with the elastic sheet 3, so that the wire 2 wound around the binding post 100 can contact with the elastic sheet 3 covering the end face of the support body 1.
In order to facilitate the production, in step S10, the groove 300 is formed by etching, so that the elastic sheet 3 meeting the requirement can be produced quickly, with high precision and good quality.
In a further embodiment, in step S10, the groove 300 is opened in a square shape, the length of the groove 300 is greater than 0.1mm, the width of the groove 300 is greater than 0.1mm, and the depth of the groove 300 is 0.01mm to 0.08 mm.
After the groove 300 meeting the requirement is formed on the surface of the elastic sheet 3, the solder paste 301 may be filled into the groove 300, that is, step S11, at this time, the solder paste 301 filled into the groove 300 is liquid solder paste, and a corresponding amount of the solder paste 301 is filled according to the size of the groove 300, specifically, the amount of the solder paste 301 filled into the groove 300 is that the solder paste 301 is flush with the front surface of the elastic sheet 3. In order to complete step S11 efficiently without wasting solder paste 301, in a preferred embodiment, in step S11, the solder paste 301 is filled into the recess 300 by screen printing. Covering the screen plate on the front surface of the elastic sheet 3, leaking the groove 300, then brushing the solder paste 301, filling the solder paste 301 into the groove 300, taking down the screen plate, and removing the solder paste 301 outside the groove 300 for the next batch of elastic sheets 3 to perform the step S11.
After the solder paste 301 is filled in the groove 300 of the spring plate 3, in order to prevent the solder paste 301 from overflowing out of the groove 300 when the solder paste 301 is transported to the next process line, the liquid solder paste 301 needs to be solidified and bonded in the groove 300, that is, the step S12 needs to be performed to solidify the liquid solder paste 301. In order to remove the components, such as pine oil, which may cause the solder paste 301 to splash in this step, so as to remove the possibility of the solder paste 301 splashing, in a preferred embodiment, in step S12, the solder paste 301 is solidified and adhered in the groove 300 by reflow soldering, so that not only the solder paste 301 is solidified in the groove 300, but also the components, which may cause tin explosion, in the solder paste 301 are removed at the same time, which serves many purposes.
In order to avoid the oxidation and discoloration of the elastic sheet 3 during the reflow soldering, in a further embodiment, before the step S12, the method further includes the steps of:
a high temperature resistant adhesive tape is adhered to the surface of the elastic sheet 3 and leaks out of the groove 300.
Through the high temperature resistant adhesive tape, the part outside the groove 300 of the elastic sheet 3 can be prevented from being oxidized and discolored. After the elastic sheet 3 is processed until the solder paste 301 is solidified and adhered in the groove 300, the assembly step of the coil support structure of the voice coil motor may be performed, please refer to fig. 6, that is, step S13, where the elastic sheet 3 is covered to the end surface of the support body 1, and the two grooves 300 are aligned with the two wire binding posts 100 wound with the wire 2, respectively, since the elastic sheet 3 is disposed in the groove 300, after the elastic sheet 3 is covered to the end surface of the support body 1, the position of the wire binding post 100 cannot be seen through the elastic sheet 3, and in order to ensure that the solder paste 301 can be aligned with the wire binding post 100, please refer to fig. 2 and 5, in a preferred embodiment, before step S13, the method further includes the steps of:
a positioning protrusion is arranged on the end face of the bracket body 1, and a positioning opening 302 is formed in the front face of the elastic sheet 3;
step S13 is:
cover shell fragment 3 to the terminal surface department of stake body 1, in location arch 101 wears to location mouth 302 for two recesses 300 are respectively with two binding post 100 alignment around wired material 2.
Consequently, cover shell fragment 3 to the terminal surface department of stake body 1, and when the protruding 101 of location worn to the location mouth 302 in, two recesses 300 then automatic respectively with two wiring posts 100 alignment, realize accomplishing the counterpoint of recess 300 and wiring posts 100 conveniently, efficiency is still high, the degree of accuracy is also high.
The position of the positioning protrusion 101 and the position of the positioning opening 302 need to meet the requirements that when the elastic sheet 3 covers the end face of the bracket body 1 and the two grooves 300 are respectively aligned with the two wire binding posts 100, the positioning protrusion 101 can penetrate into the positioning opening 302.
Before the elastic sheet 3 is covered on the end face of the support body 1, the wire 2 needs to be wound around the support body 1, so in a further embodiment, step S13 includes the following steps:
winding the starting end 200 of the wire 2 at one binding post 100;
winding the wire 2 for a preset number of turns along the circumferential direction of the bracket body 1;
after the wire 2 is wound for a predetermined number of turns, the tail end 201 of the wire 2 is wound around another binding post 100.
The step is a winding operation and can be completed by a winding machine.
Covering the elastic sheet 3 to the end face of the support body 1, and aligning the two grooves 300 with the two binding posts 100 wound with the wire 2 respectively, then requiring the solder paste 301 to play a role, bonding the wire 2 and the elastic sheet 3 together, therefore, step S14 needs to be performed, heating the elastic sheet 3, melting the solder paste 301, bonding the end part of the wire 2, the elastic sheet 3 and the binding posts 100, heating the elastic sheet 3 by laser, infrared or other heating modes, in the process, the solder paste 301 cannot pass through the back face of the elastic sheet 3, the front face of the elastic sheet 3 covers the end face of the support body 1, the solder paste 301 is located between the elastic sheet 3 and the support body 1, the process that the solder paste 301 is heated and melted can be sealed in the grooves 300, the solder paste 301 cannot splash, and the quality of the support structure of the voice coil motor coil can be guaranteed. The process does not adopt the traditional soldering mode to bond the wire 2 and the elastic sheet 3, and the problem of solder paste 301 splashing or tin explosion caused by soldering is avoided.
The processing technology of the coil support structure of the voice coil motor uses the solder paste 301 as a binder, the solder paste 301 is installed at the elastic sheet 3 in advance, the elastic sheet 3 covers the support body 1, the notch of the groove 300 is covered, the solder paste 301 is shielded in the groove 300, the solder paste 301 is hot-melted to enable the wire 2 and the elastic sheet 3 to be bonded together by heating, therefore, the wire 2 and the elastic sheet 3 can be bonded without adopting a soldering mode, the problem that the solder paste 301 splashes to pollute a lens is avoided, and the quality of the whole coil support structure of the voice coil motor is ensured.
It should be noted that, although the above embodiments have been described herein, the invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present invention.
Claims (7)
1. A processing technology of a coil support structure of a voice coil motor is characterized by comprising the following steps:
s10, forming two grooves on the front surface of the elastic sheet, wherein the grooves are square, the length of each groove is more than 0.1mm, the width of each groove is more than 0.1mm, and the depth of each groove is 0.01-0.08 mm;
s11, filling solder paste into the two grooves;
s12, solidifying and bonding the solder paste in the groove by reflow soldering;
s13, covering the elastic sheet on the end surface of the bracket body, and aligning the two grooves with the two binding posts wound with the wire material respectively;
and S14, heating the elastic sheet, and melting the solder paste to bond the end of the wire material, the elastic sheet and the wire binding column.
2. The voice coil motor coil support structure processing technology of claim 1, wherein in step S10, the groove is formed by etching.
3. The process of claim 1, wherein in step S11, solder paste is filled into the grooves by screen printing.
4. The vcm processing technology of claim 1, further comprising, before step S12, the steps of:
and sticking a high-temperature-resistant adhesive tape on the surface of the elastic sheet and leaking out of the groove.
5. The vcm processing technology of claim 1, further comprising, before step S13, the steps of:
the end face of the bracket body is provided with a positioning protrusion, and the front side of the elastic sheet is provided with a positioning opening;
step S13 is:
the elastic sheet is covered to the end face of the support body, and the positioning protrusion penetrates into the positioning opening, so that the two grooves are respectively aligned with the two binding posts wound with the wire material.
6. The manufacturing process of coil support structure of voice coil motor as claimed in claim 1, wherein step S13 is preceded by the steps of:
winding the starting end of the wire material at a wire binding column;
winding the wire material for a preset number of turns along the circumferential direction of the bracket body;
after the wire material with the preset number of turns is wound, the tail end of the wire material is wound at the other wire binding column.
7. The process of claim 1, wherein in step S14, the spring plate is heated by laser or infrared light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011588779.5A CN112701870B (en) | 2020-12-29 | 2020-12-29 | Processing technology of voice coil motor coil support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011588779.5A CN112701870B (en) | 2020-12-29 | 2020-12-29 | Processing technology of voice coil motor coil support structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112701870A CN112701870A (en) | 2021-04-23 |
| CN112701870B true CN112701870B (en) | 2022-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011588779.5A Active CN112701870B (en) | 2020-12-29 | 2020-12-29 | Processing technology of voice coil motor coil support structure |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205271193U (en) * | 2015-12-17 | 2016-06-01 | 河南省皓泽电子有限公司 | Back reed structure that is fit for laser welding |
| CN105846056B (en) * | 2016-03-28 | 2019-04-02 | 歌尔股份有限公司 | A kind of production method of antenna module and a kind of antenna module |
| CN207853723U (en) * | 2018-02-01 | 2018-09-11 | 厦门新鸿洲精密科技有限公司 | A kind of conduction connecting structure of voice coil motor |
| CN211791213U (en) * | 2020-05-08 | 2020-10-27 | 新思考电机有限公司 | Spring and coil welding structure, voice coil motor, photographic device and electronic product |
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| CN112701870A (en) | 2021-04-23 |
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