CN107240852A - The preparation method and USB interface of a kind of USB interface - Google Patents
The preparation method and USB interface of a kind of USB interface Download PDFInfo
- Publication number
- CN107240852A CN107240852A CN201710470003.5A CN201710470003A CN107240852A CN 107240852 A CN107240852 A CN 107240852A CN 201710470003 A CN201710470003 A CN 201710470003A CN 107240852 A CN107240852 A CN 107240852A
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- Prior art keywords
- terminal
- segment
- plastic cement
- contact
- insulating part
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/18—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing bases or cases for contact members
-
- 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
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
- H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The invention discloses a kind of preparation method of USB interface and USB interface, belong to intelligent terminal accessory field.The preparation method includes：First time in-mould injection is carried out, is formed on the first insulating part, the first insulating part and is formed with terminal groove and the first plastic cement runner；Insert the terminal into terminal groove；Second of in-mould injection is carried out to the first insulating part for inserting terminal, makes plastic cement by the first plastic cement runner the second insulating part of formation, the second insulating part and the first insulating part combine to form insulator, and pack tightly the contact-segment of terminal；Shell is installed on insulator, USB interface is obtained.The disclosure makes plastic cement by the first plastic cement runner injection molding thereon, the contact-segment of terminal can be packed tightly, effectively fixed to it by the second insulating part of formation by carrying out second of in-mould injection to the first insulating part for inserting terminal.In addition, the method provided using the embodiment of the present disclosure, reduces in-mould injection number of times, product fraction defective declines to a great extent, and is beneficial to reduce cost.
Description
Technical field
This disclosure relates to intelligent terminal accessory field, the preparation method and USB interface of more particularly to a kind of USB interface.
Background technology
Be provided with the intelligent terminals such as mobile phone, tablet personal computer USB (Universal Serial Bus, it is general
Universal serial bus) interface, USB interface both can as terminal device charging inlet, also can be as data transmission interface, for carrying
The operability of very intelligent terminal equipment has great importance.Fig. 1 shows the structural representation of USB interface in correlation technique
Figure, USB interface includes terminal 1, insulator 2, shell, wherein, terminal 1 is fixed on insulator 2 in default terminal groove, and exhausted
Edge body 2 is fixedly mounted in shell.Terminal 1 includes the contact-segment being sequentially connected with and fixing section, and the contact surface of contact-segment exposes, with
Contacted with supporting USB male joint.
At present, for the preparation of USB interface, typically by in-mould injection technique, make plastic cement through single injection-molded, formed
Terminal, is then pressed into the terminal groove of insulator by the insulator with terminal groove, then installs shell in insulator exterior, i.e.,
USB interface can be formed.
However, the contact-segment of terminal is arranged in terminal groove by press mode, it is used for a long time and easily tilts, while easily causing
Terminal is exited or reflexed.
Disclosure
Embodiment of the present disclosure technical problem to be solved is being capable of effectively fixing terminal, anti-not-go-end there is provided one kind
Son exit or reflexed USB interface preparation method and USB interface.Concrete technical scheme is as follows：
According to the first aspect of the embodiment of the present disclosure, there is provided a kind of preparation method of USB interface, the preparation method bag
Include：First time in-mould injection is carried out, is formed on the first insulating part, first insulating part and is formed with terminal groove and the first plastic cement stream
Road；
Insert the terminal into the terminal groove；
Second of in-mould injection is carried out to the first insulating part for inserting the terminal, plastic cement is passed through the first plastic cement stream
The second insulating part of road formation, second insulating part combines to form insulator with first insulating part, and packs tightly the terminal
Contact-segment；
Shell is installed on the insulator, the USB interface is obtained.
Alternatively, first insulating part includes：Fixed part, the quadric injection mould portion being connected with the fixed part front end；
The terminal groove includes：Groove, the fluting formed in the quadric injection mould portion formed in the fixed part；
In the fixing section insertion groove of the terminal, the contact-segment of the terminal is inserted in the fluting；
The first plastic cement runner is formed at the quadric injection mould portion.
Alternatively, the contact-segment of the terminal is inserted after the fluting, the rear end bottom wall of the contact-segment of the terminal and institute
Stating has gap between the bottom wall of fluting；
It regard the gap as the first plastic cement runner.
Alternatively, the quadric injection mould portion includes：Substrate, the frid being arranged on the substrate surface；
The a plurality of fluting is arranged on the frid；
The plate body that the substrate is located on front side of the frid with arranged on left and right sides is used as the first plastic cement runner.
Alternatively, the left side wall positioned at the fluting in left side is provided with zero elevation section；
The right side wall of the fluting on right side is provided with zero elevation section；
The contact-segment insertion of the terminal is positioned at the fluting in left side and after the fluting on right side, the end
The left side and right side of the contact-segment of son are exposed respectively at the zero elevation section；
The left side and right side that the contact-segment of the terminal is exposed are used as the second plastic cement runner.
Alternatively, from front end to the rear end of the contact-segment of the terminal, multiple between left side and right side described open
The Sidewall Height of groove is gradually reduced；
The contact-segment of the terminal is inserted after the fluting, and the sidepiece of the contact-segment of the terminal is exposed, and exposure
Product gradually increases；
The sidepiece that the contact-segment of the terminal is exposed is used as the 3rd plastic cement runner.
Alternatively, the front end of the contact-segment of the terminal extend out to the grooved exterior.
Alternatively, the USB interface is c-type interface.
Alternatively, it is relatively set with groove described in two rows on the fixed part；
Two frids are oppositely arranged on the upper and lower surface of the substrate, are relatively set with two frids
Slotted described in two rows；
The substrate, which is located on the plate body on front side of the frid, is provided with plastic cement flowing hole.
According to the first aspect of the embodiment of the present disclosure there is provided a kind of USB interface, by any one above-mentioned preparation method
Prepare.
The technical scheme that the embodiment of the present disclosure is provided can include the following benefits：
The preparation method for the USB interface that the embodiment of the present disclosure is provided, when forming insulator, passes through first time in-mould injection
The first insulating part is formed, thereon with the terminal groove for insertion terminal, and the plastic cement runner for second of in-mould injection.So
Second of in-mould injection is carried out to the first insulating part for inserting terminal afterwards, plastic cement is carried out injection molding by the plastic cement runner,
Formed and the second insulating part.Due to the injection molding at plastic cement runner of the second insulating part, it is combined with the first insulating part, forms one
The insulator of body structure.Simultaneously as the injection molding after insertion terminal of the second insulating part, can be by the contact-segment bag of terminal
Tightly, effectively to fix it, prevent from easily tilting because being used for a long time, and cause terminal to exit or the problem of reflexed.Moreover, should
Method only can form insulator by in-mould injection process twice, and technique is simple, compared to multiple in-mould injection process is used, produce
Product fraction defective declines to a great extent, and is beneficial to reduce cost.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary, this can not be limited
It is open.
Brief description of the drawings
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows the implementation for meeting the disclosure
Example, and be used to together with specification to explain the principle of the disclosure.
Fig. 1 is the partial structurtes profile of the USB interface according to correlation technique；
Fig. 2 is a kind of flow chart of the preparation method of USB interface according to an exemplary embodiment；
Fig. 3-1 shows according to an exemplary embodiment, the structural representation of the first insulating part；
Fig. 3-2 shows according to an exemplary embodiment, the connection diagram of the first insulating part and terminal；
Fig. 3-3 shows according to an exemplary embodiment, the connection diagram of insulator and terminal.
Reference is represented respectively：
1- terminals,
2- insulators,
The insulating parts of 201- first, 201a- fixed parts, 201b- quadric injection moulds portion,
201b1- substrates, 201b2- frids,
2011- terminal grooves, 2011a- grooves, 2011b- flutings,
2012- the first plastic cement runners,
The insulating parts of 202- second.
Embodiment
It is right with reference to embodiment and accompanying drawing for the purpose, technical scheme and advantage of the disclosure are more clearly understood
The disclosure is described in further details.Here, the exemplary embodiment of the disclosure and its illustrating to be used to explain the disclosure, but simultaneously
Limited not as of this disclosure.
In a first aspect, Fig. 2 is the flow chart of the preparation method of the USB interface according to an exemplary embodiment, the system
Preparation Method comprises the following steps：
Step 101, progress first time in-mould injection, form on the first insulating part 201, the first insulating part 201 and are formed with end
The plastic cement runner 2012 of pilot trench 2011 and first.Wherein, the structure of the first insulating part 201 can be found in Fig. 3-1.
Step 102, terminal 1 inserted into terminal groove 2011.Now, the annexation of the first insulating part 201 and terminal 1 can join
See Fig. 3-2.
Step 103, the first insulating part 201 second of in-mould injection of progress to inserting terminal 1, make plastic cement pass through the first modeling
The second insulating part 202 of formation of glue runner 2012, the second insulating part 202 and the first insulating part 201 combine to form insulator 2, and wrap
The contact-segment of tight terminal 1.
Now, the insulator 2 and the annexation of terminal 1 formed is reference can be made to Fig. 3-3.
Step 104, on insulator 2 shell is installed, prepares USB interface.
The preparation method for the USB interface that the embodiment of the present disclosure is provided, when forming insulator 2, by being noted in first time mould
It is moulding to be formed with the terminal groove 2011 for insertion terminal 1 thereon into the first insulating part 201, and for second of in-mould injection
The first plastic cement runner 2012.By carrying out second of in-mould injection to the first insulating part 201 for inserting terminal 1, lead to plastic cement
The injection molding of the first plastic cement runner 2012 is crossed, the second insulating part 202 is formed.Because the second insulating part 202 is in the first plastic cement stream
Injection molding at road 2012, it can be integrally formed with the first insulating part 201, formed insulator 2, and with the contact of terminal 1
Section is combined, and the contact-segment of terminal 1 is packed tightly, effectively to be fixed to it, prevents terminal 1 from easily being tilted because being used for a long time, and
Cause and exit or the problem of reflexed.
In addition, the method provided using the embodiment of the present disclosure, only can form insulator by in-mould injection process twice
2, technique is simple, and compared to insulator 2 is formed using multiple in-mould injection process, product fraction defective declines to a great extent, and beneficial to drop
Low cost.
It will be appreciated by persons skilled in the art that above-mentioned the second insulating part of use 202 packs tightly the contact-segment of terminal 1,
Refer to：Second insulating part 202 packs tightly the periphery of the contact-segment of terminal 1, and the contact surface for only making it be in contact with USB plug is sudden and violent
Dew is (referring to Fig. 3-3).
The shell of USB interface is common for this area, and different according to the requirement of intelligent terminal, it can be arranged to
Plurality of specifications type, for example, can select cuboid structure metal shell, be sleeved on by way of spot welding with
On the insulator 2 that its structure is adapted.
In-mould injection technique is carried out with the use of injection mold, it is common for this area with the insulator 2 for forming USB interface
, wherein, injection mold is adapted with the structure of insulator 2 to be formed, by injecting flowing plastic cement, modeling in injection mold
Glue is full of the space in injection mold, and in this injection molding, after injection mold is removed, you can form the insulation of desired structure
Body 2.
For example, CN204732590U discloses the insulator 2 using in-mould injection technique formation USB interface；Li Cheng
It is triumphant《Mould》(the 10th phase in 2014) discloses《USB plug injection molding design》；Money Xiao Ling exists《Silk-screen printing》, 2015 (8):
10-12 is disclosed《IMD injecting product in mold and technique》；The embodiment of the present disclosure at this to specific in-mould injection technical process not
Repeat again.
Fig. 3-1 is according to an exemplary embodiment, the structural representation of the first insulating part 201, the first insulating part 201
Including：Fixed part 201a, the quadric injection mould portion 201b being connected with fixed part 201a front ends；
Terminal groove 2011 includes：Form groove 2011a in fixed part 201a, formed in quadric injection mould portion 201b
Slot 2011b；
In the fixing section insertion groove 2011a of terminal 1, in the contact-segment insertion fluting 2011b of terminal 1；
First plastic cement runner 2012 is formed at quadric injection mould portion 201b.
Wherein, above-mentioned groove 2011a and fluting 2011b can be understood as it is longitudinally disposed, also, both correspond connect
It is logical, provided according to USB associations, terminal groove 2011 can be parallel relative a plurality of, such as 12.
The embodiment of the present disclosure makes terminal 1 by setting groove 2011a in the fixed part 201a of the first insulating part 201
Fixing section is inserted and fixed wherein.As described in accompanying drawing 3-1, connected and all round closure before and after groove 2011a.
In order that injection mold is securely inserted into wherein, also, make the fixing section uniform force of terminal 1, groove 2011a
It is arranged to the convex shape structure of high intensity, including top stria and bottom sipes.The width of terminal 1 is adapted with bottom sipes,
Can be fixed on by way of frictionally securing in the bottom sipes.The width of top stria is less than the width of terminal 1, with true
The fixing section of terminal 1 can be propped up by protecting its bottom, make that it is equally loaded.
By setting fluting 2011b in the quadric injection mould portion 201b of the first insulating part 201, insert the contact-segment of terminal 1
Enter and be fixed in fluting 2011b.Fluting 2011b has upward opening, with the contact surface of the contact-segment of exposed terminal 1,
Meanwhile, fluting 2011b rear end is connected with groove 2011a.
The first plastic cement runner 2012 is formed with quadric injection mould portion 201b, when carrying out second of in-mould injection, flowing
Plastic cement injection molding on the first plastic cement runner 2012, the second insulating part 202 and the end on quadric injection mould portion 201b of formation
The contact-segment of son 1 is combined together, and realizes effective fixation to the contact-segment of terminal 1.
For forming position of the first plastic cement runner 2012 on quadric injection mould portion 201b, on the one hand, it is required that plastic cement is at it
Upper the second insulating part 202 for flowing and forming desired structure；On the other hand, it is desirable to which the second insulating part 202 formed can be wrapped
The contact-segment of tight terminal 1, makes it effectively be fixed.Based on this, the position of the first plastic cement runner 2012 is given as defined below：
Fig. 3-2 shows according to an exemplary embodiment, the connection diagram of the first insulating part 201 and terminal 1, as
It is preferred that, after the contact-segment insertion fluting 2011b of terminal 1, the bottom wall of the rear end bottom wall and fluting 2011b of the contact-segment of terminal 1
Between have gap, regard the gap as the first plastic cement runner 2012.
When carrying out second of in-mould injection, make the gap as the first plastic cement runner 2012, plastic cement flows through the gap, and
It is injection molded in the gap location, while the fixed part with the rear end bottom wall of the contact-segment of terminal 1 and with the first insulating part 201
201a is combined together, and then realizes effective fixation to the contact-segment of terminal 1.
The gap can be understood as transversely setting, and for example it can be arranged to the transverse groove of bottom connection.Further,
For the ease of corresponding fluting 2011b and groove 2011a, be provided with the transverse groove it is multiple play the role of positioning it is first convex
Platform (it is understood that the contact-segment bottom wall of the first boss and terminal 1 is not in contact with to ensure that plastic cement flows through), Duo Ge
Plastic cement groove of the two ends respectively with the corresponding connections of fluting 2011b and groove 2011a is formed between one boss.
In addition, by setting multiple first boss, additionally it is possible to carry out uniform divided flows to the plastic cement of flowing, make to be formed second
Insulating part 202 is homogeneous, beneficial to its intensity is improved, moreover, multiple first boss are also used as grasping mechanism, significantly improves
The combination dynamics of second insulating part 202 and the first insulating part 201.
Further, the contact-segment of the terminal 1 is packed tightly in order to ensure the second insulating part 202 of formation, such as accompanying drawing 3-1 institutes
Show, quadric injection mould portion 201b includes：Substrate 201b1, the frid 201b2 being arranged on substrate 201b1 surfaces；
A plurality of fluting 2011b is arranged on frid 201b2；
The plate body that substrate 201b1 is located on front side of frid 201b2 with arranged on left and right sides is used as the first plastic cement runner 2012.
It is understood that substrate 201b1 width and length are all higher than frid 201b2 width and length, so when
When frid 201b2 is arranged on substrate 201b1 surfaces, front side and arranged on left and right sides on substrate 201b1 will not be by frids
201b2 is covered.The embodiment of the present disclosure is made by the way that substrate 201b1 to be located to the plate body on front side of frid 201b2 with arranged on left and right sides
For the first plastic cement runner 2012, plastic cement injection molding at these positions can be made, and then ensure the second formed insulating part
202 can pack tightly the sidepiece of the contact-segment of terminal 1 and front end, simultaneously, moreover it is possible to make the second insulating part 202 and the first insulating part 201
The integrally-formed insulators 2 of quadric injection mould portion 201b.
Further, the left side wall positioned at the fluting 2011b in left side is provided with zero elevation section；
The fluting 2011b on right side right side wall is provided with zero elevation section；
The contact-segment insertion of terminal 1 is located at the fluting 2011b in left side and after the fluting 2011b on right side, terminal 1
The left side and right side of contact-segment are exposed respectively at the zero elevation section；
The left side and right side that the contact-segment of terminal 1 is exposed are used as the second plastic cement runner.
The embodiment of the present disclosure it is above-mentioned be located at left side and positioned at right side, refer respectively to be located at the frid 201b2 leftmost sides and
Positioned at the frid 201b2 rightmost sides.
The embodiment of the present disclosure is arranged to zero elevation by the way that the 2011b that slots to be located to the side wall of the leftmost side and the rightmost side
Section, in this way, after the contact-segment insertion of terminal 1 is positioned at the fluting 2011b and the fluting 2011b positioned at right side in left side, terminal 1
Contact-segment left side and right side will be exposed at zero elevation section, formed the second plastic cement runner.Carrying out second
During in-mould injection, plastic cement flows through the second plastic cement runner, and injection molding here, so with the contact-segment of above-mentioned terminal 1
Sidepiece is completely combined, and further realizes effective fixation to the contact-segment of terminal 1.
Alternatively, along fluting 2011b length direction, zero elevation section can be spaced on fluting 2011b side wall
It is set to multistage；Or, only it is zero by fluting 2011b middle parts to the Sidewall Height at back-end location as shown in accompanying drawing 3-2.
Further, as shown in accompanying drawing 3-2, from front end to the rear end of the contact-segment of terminal 1, between left side and right side
Multiple fluting 2011b Sidewall Height gradually reduce；
After the contact-segment insertion fluting 2011b of terminal 1, the sidepiece of the contact-segment of terminal 1 is exposed, and exposed area is gradually
Increase；
The sidepiece that the contact-segment of terminal 1 is exposed is used as the 3rd plastic cement runner.
The embodiment of the present disclosure makes plastic cement be injection molded here by setting the 3rd plastic cement runner as described above, with
The sidepiece of the contact-segment of terminal 1 is combined together, also, from front to back, the second insulating part 202 and the knot of the contact-segment of terminal 1
Spend with joint efforts increasing, further ensure that effective fixation to the contact-segment of terminal 1, prevent it from exiting or reflexed.
Wherein, positioned at the leftmost side terminal 1 contact-segment right side, and the terminal 1 positioned at the rightmost side contact-segment
Left side be similarly exposed, and exposed area gradually increases, to be used as the 3rd plastic cement runner.
Above-mentioned " fluting 2011b Sidewall Height is gradually reduced ", it can be understood as：Between two neighboring fluting 2011b
The upper surface of second boss then tilted gradually downward from preceding.
Connected between corresponding first boss and second boss by the transition boss tilted down, transition boss is as grabbing
Tight mechanism, forms the combination dynamics of the second insulating part 202 and the first insulating part 201 beneficial to raising.
To sum up, preferably, the embodiment of the present disclosure provides such a method, by by after the contact-segment of terminal 1
Between the bottom wall for holding bottom wall and the 2011b that slots, and the plate body that substrate 201b1 is located on front side of frid 201b2 with arranged on left and right sides is made
For the first plastic cement runner 2012；The left side that the contact-segment of the terminal 1 of the leftmost side and the rightmost side is exposed and right side difference
It is used as the second plastic cement runner；The sidepiece that the contact-segment of terminal 1 between the leftmost side and the rightmost side is exposed is used as the 3rd
Plastic cement runner.First plastic cement runner 2012 of above two type communicates with each other, and the second plastic cement runner and the 3rd plastic cement runner are equal
Connected with the first plastic cement runner 2012 of above two type.
When carrying out second of in-mould injection, make plastic cement simultaneously in above-mentioned first plastic cement runner 2012, the second plastic cement runner
And the 3rd be injection molded at plastic cement runner, the second insulating part 202 is formed.It so not only can ensure that the contact-segment with terminal 1
Combine closely, packed tightly, prevent terminal 1 from exiting or reflexed；It can also ensuring formed the second insulating part 202 and
One insulating part 201 has combines dynamics by force, beneficial to the insulator 2 for obtaining high intensity.
Further, in order to prevent the front end of terminal 1 from tilting, the front end of the contact-segment of the terminal 1 is extend out to outside fluting 2011b
Portion, when carrying out second of in-mould injection on this basis, this can extend out to fluting 2011b by the second insulating part 202 of formation
The contact-segment front end of anterior terminal 1 is combined closely, and the front end that effectively prevent terminal 1 is tilted.
The method provided using the embodiment of the present disclosure can prepare polytype USB interface, based on c-type interface (i.e.
Type-C types) have the advantages that at a high speed, power supply capacity is strong, support positive anti-plug, can be for preparing a kind of c-type interface.
When the method provided using the embodiment of the present disclosure prepares c-type USB interface, the fixed part of the first insulating part 201
Two rows groove 2011a is relatively set with 201a；
Two frid 201b2 of quadric injection mould are oppositely arranged on substrate 201b1 upper and lower surface, two frid 201b2
On be relatively set with two rows fluting 2011b；
Substrate 201b1, which is located on the plate body on front side of frid 201b2, is provided with plastic cement flowing hole.
Relative two rows groove 2011a is set on the fixed part 201a by making the first insulating part 201, and with fixation
Relative two rows fluting 2011b is again provided with the quadric injection mould portion 201b of portion 201a front ends connection, so that two row ends
Son 1 is symmetrically distributed up and down, to realize positive anti-plug.
Also, substrate 201b1 is provided with plastic cement flowing hole on the plate body on front side of frid 201b2, with second
Pass through plastic cement during in-mould injection, it is ensured that smoothly to form the second insulating part 202 of homogenization structure, and make the second insulating part
202 firmly grasp each other with the first insulating part 201, form the insulator 2 of integral structure.
As a kind of example, it is located in substrate 201b1 on the plate body on front side of frid 201b2 and is symmetrical arranged two plastic cement excessively streams
Hole；And the plastic cement flowing hole is bar hole.
Second aspect, the embodiment of the present disclosure provides a kind of USB interface, by the preparation method of any one above-mentioned method
Prepare.
As a kind of example, as shown in Fig. 3-3, the USB interface includes：By the first insulating part 201 and the second insulating part 202
The insulator 2 that integration is constituted, is arranged on the terminal 1 in the terminal groove 2011 of insulator 2, and the contact-segment of terminal 1 and second
Insulating part 202 is combined together by in-mould injection, is only made its upper surface as contact surface and is exposed.
It is understood that the insulator 2 of the USB interface can pack tightly the contact-segment of terminal 1, to be carried out effectively to it
It is fixed, prevent from easily tilting because being used for a long time, and prevent terminal 1 from exiting or the problem of reflexed.
The USB interface that the embodiment of the present disclosure is provided can be used in the intelligent terminals such as mobile phone, tablet personal computer, and the disclosure is real
Example is applied to be not especially limited it at this.
In the disclosed embodiments, the type to USB interface is not construed as limiting.Inserted for example, USB interface can be A types USB
Any one in head, Type B USB plug or c-type USB plug.
Preferably, the USB interface is c-type interface.
Those skilled in the art will readily occur to its of the disclosure after considering specification and putting into practice disclosure disclosed herein
Its embodiment.The application is intended to any modification, purposes or the adaptations of the disclosure, these modifications, purposes or
Person's adaptations follow the general principle of the disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.Description and embodiments are considered only as exemplary, and the true scope of the disclosure and spirit are by following
Claim is pointed out.
It should be appreciated that the precision architecture that the disclosure is not limited to be described above and is shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present disclosure is only limited by appended claim.
Claims (10)
1. a kind of preparation method of USB interface, it is characterised in that the preparation method includes：Carry out first time in-mould injection, shape
Into the first insulating part, terminal groove and the first plastic cement runner are formed with first insulating part；
Insert the terminal into the terminal groove；
Second of in-mould injection is carried out to the first insulating part for inserting the terminal, plastic cement is passed through the first plastic cement runner shape
Into the second insulating part, second insulating part combines to form insulator with first insulating part, and packs tightly connecing for the terminal
Touch section；
Shell is installed on the insulator, the USB interface is obtained.
2. preparation method according to claim 1, it is characterised in that first insulating part includes：Fixed part, with it is described
The quadric injection mould portion of fixed part front end connection；
The terminal groove includes：Form a plurality of groove in the fixed part, form a plurality of in the quadric injection mould portion
Fluting；
In the fixing section insertion groove of the terminal, the contact-segment of the terminal is inserted in the fluting；
The first plastic cement runner is formed at the quadric injection mould portion.
3. preparation method according to claim 2, it is characterised in that the contact-segment of the terminal is inserted after the fluting,
There is gap between the rear end bottom wall of the contact-segment of the terminal and the bottom wall of the fluting；
It regard the gap as the first plastic cement runner.
4. preparation method according to claim 2, it is characterised in that the quadric injection mould portion includes：Substrate, it is arranged on institute
State the frid on substrate surface；
The a plurality of fluting is arranged on the frid；
The plate body that the substrate is located on front side of the frid with arranged on left and right sides is used as the first plastic cement runner.
5. preparation method according to claim 2, it is characterised in that the left side wall positioned at the fluting in left side is provided with
Zero elevation section；
The right side wall of the fluting on right side is provided with zero elevation section；
The contact-segment insertion of the terminal is located at the fluting in left side and after the fluting on right side, the terminal
The left side and right side of contact-segment are exposed respectively at the zero elevation section；
The left side and right side that the contact-segment of the terminal is exposed are used as the second plastic cement runner.
6. preparation method according to claim 2, it is characterised in that the front end from the contact-segment of the terminal to rear end,
The Sidewall Height of multiple flutings between left side and right side is gradually reduced；
The contact-segment of the terminal is inserted after the fluting, and the sidepiece of the contact-segment of the terminal is exposed, and exposed area by
It is cumulative big；
The sidepiece that the contact-segment of the terminal is exposed is used as the 3rd plastic cement runner.
7. preparation method according to claim 2, it is characterised in that the front end of the contact-segment of the terminal extend out to described
Grooved exterior.
8. preparation method according to claim 4, it is characterised in that the USB interface is c-type interface.
9. preparation method according to claim 8, it is characterised in that two rows institute is relatively set with the fixed part
State groove；
Two frids are oppositely arranged on the upper and lower surface of the substrate, be relatively set with two frids above and below
Slotted described in two rows；
The substrate, which is located on the plate body on front side of the frid, is provided with plastic cement flowing hole.
10. a kind of USB interface, is prepared as the preparation method described in claim any one of 1-9.
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| CN111029881A (en) * | 2019-12-23 | 2020-04-17 | 西安易朴通讯技术有限公司 | Data interface manufacturing method and data interface |
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