CN106239063A - Production method and production equipment of connector metal shell and USB TYPE-C connector - Google Patents
Production method and production equipment of connector metal shell and USB TYPE-C connector Download PDFInfo
- Publication number
- CN106239063A CN106239063A CN201610768047.1A CN201610768047A CN106239063A CN 106239063 A CN106239063 A CN 106239063A CN 201610768047 A CN201610768047 A CN 201610768047A CN 106239063 A CN106239063 A CN 106239063A
- Authority
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- Prior art keywords
- connector
- metal shell
- matrix band
- production method
- style
- Prior art date
- 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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- 239000002184 metal Substances 0.000 title claims abstract description 108
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 51
- 238000005452 bending Methods 0.000 claims abstract description 39
- 238000003466 welding Methods 0.000 claims abstract description 35
- 238000002844 melting Methods 0.000 claims abstract description 31
- 230000008018 melting Effects 0.000 claims abstract description 31
- 239000011159 matrix material Substances 0.000 claims description 61
- 238000003825 pressing Methods 0.000 claims description 15
- 238000004080 punching Methods 0.000 claims description 12
- 229910052756 noble gas Inorganic materials 0.000 claims description 7
- 229910000679 solder Inorganic materials 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 9
- 239000000463 material Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 241000397426 Centroberyx lineatus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
- H01R13/504—Bases; Cases composed of different pieces different pieces being moulded, cemented, welded, e.g. ultrasonic, or swaged together
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention is suitable for the technical field of connector production, and discloses a production method and production equipment of a connector metal shell and a USB TYPE-C connector. The production method comprises the following steps: and stamping the metal sheet to form a forming piece with meshing structures at two ends, bending the forming piece and enabling the meshing structures at the two ends of the forming piece to be meshed and connected with each other, and carrying out continuous laser melting welding along a seam at the meshing connection position. The production equipment comprises a stamping and bending device and a laser melting and welding device. The USB TYPE-C connector comprises a connector metal shell and a connector body. According to the production method and the production equipment of the connector metal shell and the USB TYPE-C connector, the involution positions of the forming pieces in the connector metal shell are mutually occluded by the occlusion structures, the mutually occluded seam positions of the occlusion structures are integrally and seamlessly connected through welding seams formed by continuous laser melting welding, and the product is high in structural strength, good in waterproof effect, long in service life and low in production cost.
Description
Technical field
The invention belongs to adapter production technical field, particularly relate to the production method of a kind of style metal shell of connector, life
Product equipment and USB TYPE-C adapter.
Background technology
Along with the development of mobile phone ultrathin and the demand of high-level water resistance, high intensity and waterproof ability to adapter are wanted
Asking more and more higher, such as, USB TYPE-C is as a kind of novel mobile phone external adapter, its high intensity and high-level water proofing property
Can be particularly important.
The metal shell of the USB TYPE-C adapter in city mainly has stamping riveting and two kinds of production technologies of stretching at present.Punching
The metal shell intensity difference that the technique that is riveted is produced, and do not possess water proofing property.Rely on the metal that drawing process is produced
Casing rigidity is high and water resistance is good, but owing to production cost is high, is not widely popularized use by industry.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, it is provided that the production of a kind of style metal shell of connector
Method, production equipment and USB TYPE-C adapter, its product structure intensity is high, and good water-proof effect and production cost are low.
The technical scheme is that the production method of a kind of style metal shell of connector, comprise the following steps:
Sheet metal is stamped and formed out two ends there is the matrix band of occlusion structure；
Matrix band described in bending also makes the occlusion structure at described matrix band two ends be mutually twisted connection；
Seam along the described matrix band two ends place of being mutually twisted carries out continuous laser melting welding.
Alternatively, described style metal shell of connector includes relative upper surface and lower surface, and described matrix band two ends are mutual
The zone line of described upper surface it is positioned at occlusion.
Alternatively, in the step of sheet metal described in punching press, described matrix band is made to be connected to clout band by prejudging connecting portion
Fall.
Alternatively, in the step of sheet metal described in punching press, once it is stamped and formed out multiple matrix band.
Alternatively, described occlusion structure is mutually twisted the gap at place less than 0.05mm.
Alternatively, the thickness of described sheet metal be less than 0.3mm, the gap at the described occlusion structure place of being mutually twisted be 0.01 to
0.03mm。
Alternatively, carry out, in the step of described continuous laser melting welding, being passed through noble gas.
Alternatively, described occlusion structure includes occlusal crib and the occlusion lobe being arranged at described matrix band two ends.
Present invention also offers the production equipment of a kind of style metal shell of connector, including:
Pressing and bending device, has the matrix band of occlusion structure for sheet metal is stamped and formed out two ends, and for bending
Described matrix band also makes the occlusion structure at described matrix band two ends be mutually twisted connection；
Laser melting welder, carries out continuous laser melting for the seam along the described matrix band two ends place of being mutually twisted
Welding.
Present invention also offers a kind of USB TYPE-C adapter, including style metal shell of connector and connector body, institute
Stating style metal shell of connector and be socketed on described connector body, described style metal shell of connector is had the one-tenth of occlusion structure by two ends
Matrix bending is combined to form, and in described style metal shell of connector, the apposition position of matrix band is mutually twisted by occlusion structure, occlusion
The seam crossing that structure is mutually twisted is welded the solder design formed by continuous laser melting.
The production method of style metal shell of connector provided by the present invention and the equipment of production, it is filled by precision stamping bending
Put, make sheet metal form plastic deformation, thus obtain the style metal shell of connector of solid shape.And style metal shell of connector
Junction be designed with continuous print occlusion structure, after occlusion, style metal shell of connector will not be separated from horizontal direction, the company of making
The bond strength connecing device metal shell is greatly enhanced, and style metal shell of connector is unlikely to deform, damages；By by connector metal shell
The occlusion gap of body is merged by the way of lf welds, and forms seamless metal housing, now, the button of metal shell
Close gap position and can realize 7 grades or above waterproof effect, and by having before after welding, the bond strength of closed position is relatively welded
The lifting of minimum 3 dual intensity force value, the reliability of adapter is more preferably, the life-span is longer and cost is lower.
USB TYPE-C adapter provided by the present invention, its style metal shell of connector is had the one-tenth of occlusion structure by two ends
Matrix bending is combined to form, and the weld seam that the seam crossing that occlusion structure is mutually twisted is formed by continuous laser melting welding integrally connects
Connecing, the structural strength of style metal shell of connector is high, and water resistance is good, and service life is long, and production efficiency is high, production cost is low.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below by use required in embodiment
Accompanying drawing is briefly described, it should be apparent that, the accompanying drawing in describing below is only some embodiments of the present invention, for ability
From the point of view of the those of ordinary skill of territory, on the premise of not paying creative work, it is also possible to obtain the attached of other according to these accompanying drawings
Figure.
Fig. 1 be the style metal shell of connector that the embodiment of the present invention provides production method in the schematic perspective view of sheet metal；
Fig. 2 is the stamped rear floor map forming matrix band of the sheet metal in Fig. 1；
Fig. 3 is the floor map after bending of the matrix band in Fig. 2；
Fig. 4 is the signal of the style metal shell of connector plane after continuous laser melting is welded that the embodiment of the present invention provides
Figure；
Fig. 5 is the floor map producing equipment of the style metal shell of connector that the embodiment of the present invention provides；
Fig. 6 is the floor map producing equipment of the style metal shell of connector that the embodiment of the present invention provides；
Fig. 7 is the floor map of style metal shell of connector in the USB TYPE-C adapter that the embodiment of the present invention provides；
Fig. 8 is the floor map of connector body in the USB TYPE-C adapter that the embodiment of the present invention provides；
Fig. 9 is the floor map of the USB TYPE-C adapter that the embodiment of the present invention provides.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, and it can be directly separately
On one element or may be simultaneously present centering elements.When an element is known as " being connected to " another element, and it can
To be directly to another element or to may be simultaneously present centering elements.
Also, it should be noted the orientation term such as left and right, upper and lower in the embodiment of the present invention, it it is only relative concept each other
Or with the normal operating condition of product as reference, and should not be regarded as restrictive.
As shown in Figures 1 to 4, the production method of a kind of style metal shell of connector that the embodiment of the present invention provides, including with
Lower step: sheet metal 11 is stamped and formed out two ends there is the matrix band 12 of occlusion structure 120, matrix band 12 described in bending, so that
The occlusion structure 120 at described matrix band 12 two ends is mutually twisted connection, is mutually twisted the seam at place along described matrix band 12 two ends
Carry out continuous laser melting welding.Sheet metal 11 can be sent to punching press by sheet metal strip or metal coiled material by feeding device and roll over
Curved station, sheet metal 11 is stamped and formed out two ends and has the one-tenth of occlusion structure 120 by the pressing and bending device at pressing and bending station
Matrix 12, is combined the two ends bending of matrix band 12 and makes the occlusion structure 120 at described matrix band 12 two ends be mutually twisted connection,
Form style metal shell of connector 13.Pressing and bending can realize at a station, it is also possible to punching press and bending divide two stations
Realize.Matrix band 12 after bending is involutory is sent to welding post, and the laser melting welder at welding post is to occlusion phase
The seam at the place of connecing carries out continuous laser melting welding, forms continuous print weld seam 131 at seam crossing, and the matrix band 12 after welding transmits
To rewinding station, style metal shell of connector 13 finished product after welding fabrication can be collected by the material collecting device at rewinding station.Logical
Cross precision stamping bending equipment, make sheet metal 11 produce into plastic deformation, thus obtain the style metal shell of connector of solid shape
13.Occlusion structure 120 is a kind of locking structure, is difficult to be separated from horizontal direction after occlusion, and the combination making metal shell is strong
Degree is greatly enhanced.Gap at by occlusion is welded as a whole by the way of being welded by lf, forms seamless metal shell
Body, now, the occlusion gap position of metal shell at least can realize 7 grades of waterproof effects, and by the knot of occlusal position after welding
Close and before intensity is relatively welded, have the lifting of at least 3 dual intensity force value, the production method of style metal shell of connector provided by the present invention,
Its product structure intensity height, good water-proof effect and preparation cost are low.
Metal shell after seamless welding can be used on the adapter of the types such as USB TYPE-C adapter, it is achieved
USB TYPE-C adapter increases intensity and improves the effect of classification of waterproof, can improve the service life of USB TYPE-C adapter
And water resistance.
Specifically, described style metal shell of connector 13 includes relative upper surface and lower surface, upper surface and lower surface phase
To parallel.The described matrix band 12 two ends place of being mutually twisted is positioned at the zone line of described upper surface, and occlusion joint is positioned at flat
The middle part in region, face, it is easy at abutment joint weld.
Specifically, in the step of sheet metal 11 described in punching press, form clout band 10 and described matrix band 12, described matrix band
12 are connected to described clout band 10 by prejudging connecting portion 101, except described prejudge connecting portion 101 in addition to, by described matrix band 12 weeks
The material punching enclosed falls, and the clout band 10 outside each matrix band 12 is in the shape of a frame.Prejudge connecting portion 101 and be connected to described matrix band 12 correspondence
Between the edge and clout band 10 of style metal shell of connector 13 lower surface.Before rewinding, matrix band 12 (connector metal shell
Body 13) clout band 10 can be connected to by prejudging connecting portion 101 and move forward with clout band 10, in order to realize automatization
Producing, production efficiency is high.
Specifically, in the step of sheet metal 11 described in punching press, being once stamped and formed out multiple matrix band 12, ram efficiency is high,
It is beneficial to reduce production cost further.
Specifically, described occlusion structure 120 is mutually twisted the gap at place less than 0.05mm, it is possible to understand that ground, is mutually twisted
The gap at place can also be other suitable numerical value.
The thickness of sheet metal 11 is smaller than 0.3mm, and in the present embodiment, the thickness of described sheet metal 11 is 0.2mm, described in sting
The gap closing structure 120 place of being mutually twisted is 0.01 to 0.03mm, and it has taken into account the quality of the requirement to mould and die accuracy and product
Requirement.
Specifically, carry out, in the step of described continuous laser melting welding, being passed through noble gas.Noble gas can be nitrogen
Gas etc., use nitrogen protection welding position from oxidation, it is to avoid the solder joint in conventional laser weld job is sent out in welding process
Black phenomenon occurs, and now welding position is smooth bright, outward appearance is beautiful and waterproof effect more preferably.
Specifically, described occlusion structure 120 includes occlusal crib and the occlusion lobe being arranged at described matrix band 12 two ends,
Occlusal crib and occlusion lobe can in the zigzag mutually fastened, swallow-tail form, the shape that can mutually fasten such as T-shaped.
As shown in Figures 1 to 6, the embodiment of the present invention additionally provides the production equipment of a kind of style metal shell of connector 13, adopts
By above-mentioned production method, including:
Pressing and bending device (not shown), has occlusion structure 120 for sheet metal 11 is stamped and formed out two ends
Matrix band 12, and for the two ends bending of described matrix band 12 being combined the occlusion structure 120 making described matrix band 12 two ends
It is mutually twisted connection；Pressing and bending device may also comprise the decompressor and apparatus for bending being disposed adjacent.
Laser melting welder 21, carries out continuous laser for the seam along the described matrix band 12 two ends place of being mutually twisted
Melting is welded.Pressing and bending device and laser melting welder 21 are disposed adjacent.Can set at laser melting welder 21
Being equipped with noble gas and go out pipe (not shown), noble gas goes out pipe can be connected to noble gas tank (not shown).With
Be passed through nitrogen when laser melting is welded, protection welding position is from oxidation, it is to avoid the solder joint in conventional laser weld job
Blackout phenomenon occurs, and now welding position is smooth bright, outward appearance is beautiful and waterproof effect more preferably.
Described production equipment may also include feeding device (not shown) and material collecting device (not shown), and feeding fills
Put for sheet metal 11 is sequentially transmitted along pressing and bending device, laser melting welder 21 and material collecting device.Pressing and bending
Device, laser melting welder 21 and material collecting device is set can set gradually.
Sheet metal 11 can be sent to pressing and bending device, punching press by sheet metal strip or metal coiled material by feeding device
Sheet metal 11 is stamped and formed out two ends and has the matrix band 12 of occlusion structure 120 by the pressing and bending device at bending station, and will
The two ends bending of matrix band 12 is combined and makes the occlusion structure 120 at described matrix band 12 two ends be mutually twisted connection, pressing and bending
Can be a station molding, it is also possible to punching press and bending divide two station molding, corresponding pressing and bending device also can be divided into
The decompressor being disposed adjacent and apparatus for bending.Matrix band 12 after bending is involutory is sent to welding post, at welding post
Laser melting welder 21 carries out continuous laser melting welding to the seam of occlusion joint, and the matrix band 12 after welding transmits
To rewinding station, style metal shell of connector 13 finished product after welding fabrication can be collected by the material collecting device at rewinding station.
As shown in Figure 7 to 9, present invention also offers a kind of USB TYPE-C adapter, including style metal shell of connector
13 and connector body 14, connector body 14 can include insulating base and contact terminal etc..Described style metal shell of connector 13
Being socketed on described connector body 14, described style metal shell of connector 13 is had matrix band 12 folding of occlusion structure 120 by two ends
Curved it is combined to form, and the weld seam 131 integrally nothing that the seam crossing that is mutually twisted of occlusion structure 120 is formed by continuous laser melting welding
Seam connects, and style metal shell of connector 13 is by pressing and bending and laser seamless welding fabrication, and structural strength is high, and water resistance is good,
Service life is long, and production efficiency is high, production cost is low.
The production method of style metal shell of connector provided by the present invention and the equipment of production, it is by precision stamping equipment,
Make sheet metal form plastic deformation, thus obtain the style metal shell of connector 13 of solid shape.And style metal shell of connector
The junction of 13 is designed with continuous print Z-shaped occlusion structure 120, and it is little that this structure combines gap, and sheet material thick for 0.2mm combines gap
It is only 0.01～0.03mm, is conducive to carrying out laser seamless melting welding；Z-shaped occlusion structure 120 is a kind of locking structure, button
Will not be separated from horizontal direction after conjunction, make the bond strength of style metal shell of connector 13 be greatly enhanced, connector metal shell
Body 13 is unlikely to deform, damages；Merge by the way of the occlusion gap of style metal shell of connector 13 is welded by lf
Getting up, form seamless metal housing, now, the fastening gap position of metal shell can realize 7 grades or above waterproof effect, and
By there being the lifting of minimum 3 dual intensity force value before the bond strength of closed position is relatively welded after welding, the reliability of adapter is more
Good, the life-span is longer and cost is lower.
The USB TYPE-C adapter that the embodiment of the present invention is provided, its style metal shell of connector 13 is had occlusion by two ends
Matrix band 12 bending of structure 120 is combined to form, and in described style metal shell of connector 13 apposition position of matrix band 12 by being engaged
Structure 120 is mutually twisted, and the weld seam 131 that the seam crossing that occlusion structure 120 is mutually twisted is formed by continuous laser melting welding is even
Connecing, the structural strength of style metal shell of connector 13 is high, and water resistance is good, and service life is long, and production efficiency is high, production cost
Low.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent or the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (10)
1. the production method of a style metal shell of connector, it is characterised in that comprise the following steps:
Sheet metal is stamped and formed out two ends there is the matrix band of occlusion structure；
Matrix band described in bending also makes the occlusion structure at described matrix band two ends be mutually twisted connection；
Seam along the described matrix band two ends place of being mutually twisted carries out continuous laser melting welding.
2. the production method of style metal shell of connector as claimed in claim 1, it is characterised in that described style metal shell of connector
Including relative upper surface and lower surface, the described matrix band two ends place of being mutually twisted is positioned at the zone line of described upper surface.
3. the production method of style metal shell of connector as claimed in claim 1, it is characterised in that at sheet metal described in punching press
In step, described matrix band is made to be connected to clout band by prejudging connecting portion.
4. the production method of style metal shell of connector as claimed in claim 1, it is characterised in that the step of sheet metal described in punching press
In Zhou, once it is stamped and formed out multiple matrix band.
5. the production method of style metal shell of connector as claimed in claim 1, it is characterised in that described occlusion structure is mutually stung
Gap at conjunction is less than 0.05mm.
6. the production method of style metal shell of connector as claimed in claim 1, it is characterised in that the thickness of described sheet metal is little
In 0.3mm, the gap at the described occlusion structure place of being mutually twisted is 0.01 to 0.03mm.
7. the production method of the style metal shell of connector as according to any one of claim 1 to 6, it is characterised in that carry out institute
State in the step of continuous laser melting welding, be passed through noble gas.
8. the production method of the style metal shell of connector as according to any one of claim 1 to 6, it is characterised in that described in sting
Close structure and include being arranged at occlusal crib and the occlusion lobe at described matrix band two ends.
9. the production equipment of a style metal shell of connector, it is characterised in that including:
Pressing and bending device, has the matrix band of occlusion structure for sheet metal is stamped and formed out two ends, and for described in bending
Matrix band, makes the occlusion structure at described matrix band two ends be mutually twisted connection；
Laser melting welder, carries out continuous laser melting weldering for the seam along the described matrix band two ends place of being mutually twisted
Connect.
10. a USB TYPE-C adapter, it is characterised in that include style metal shell of connector and connector body, described company
Connecing device metal shell and be socketed on described connector body, described style metal shell of connector is had the matrix band of occlusion structure by two ends
Bending is combined to form, and in described style metal shell of connector, the apposition position of matrix band is mutually twisted by occlusion structure, occlusion structure
The seam crossing being mutually twisted is welded the solder design formed by continuous laser melting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768047.1A CN106239063A (en) | 2016-08-30 | 2016-08-30 | Production method and production equipment of connector metal shell and USB TYPE-C connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768047.1A CN106239063A (en) | 2016-08-30 | 2016-08-30 | Production method and production equipment of connector metal shell and USB TYPE-C connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106239063A true CN106239063A (en) | 2016-12-21 |
Family
ID=58081061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610768047.1A Pending CN106239063A (en) | 2016-08-30 | 2016-08-30 | Production method and production equipment of connector metal shell and USB TYPE-C connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106239063A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110581424A (en) * | 2019-09-25 | 2019-12-17 | 东莞顺辉电业制品有限公司 | Production process based on USB A bus |
| CN111293571A (en) * | 2020-02-17 | 2020-06-16 | Oppo广东移动通信有限公司 | USB Type-C female head shell, preparation method, female head connector, female base and data line |
| WO2022155816A1 (en) * | 2021-01-20 | 2022-07-28 | 深圳市华诚达精密工业有限公司 | Tubular heating body and manufacturing method therefor |
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Cited By (4)
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