阅读说明：本技术 双层dp连接器及其制作工艺 (Double-layer DP connector and manufacturing process thereof ) 是由 韩林 黄磊 王钰 陶武松 陈奇 于 2021-10-13 设计创作，主要内容包括：本发明公开一种双层DP连接器及其制作工艺,包括有DP外壳、DP塑胶本体、后盖、上层DP外壳、上层DP Molding组件以及下层DP连接器模组；所述DP外壳包覆于DP塑胶本体外部,所述上层DP外壳装设于DP塑胶本体内上段区域,上层DP Molding组件装设于上层DP外壳内,所述后盖包覆于DP塑胶本体的后侧且与DP外壳形成拼接；所述下层DP连接器模组装设于DP塑胶本体内下段区域；所述上层DP Molding组件与上层DP外壳构成上层DP接口,所述上层DP接口露于DP外壳的前侧上段区域；所述下层DP连接器模组具有下层DP接口,所述下层DP接口露于DP外壳的前侧下段区域。其实现了双层DP连接器生产制作,同时,生产良率较高,有利于控制生产成本,适于推广应用。(The invention discloses a double-layer DP connector and a manufacturing process thereof, wherein the double-layer DP connector comprises a DP shell, a DP plastic body, a rear cover, an upper DP shell, an upper DP Molding assembly and a lower DP connector module; the DP shell is coated outside the DP plastic body, the upper DP shell is arranged in an upper section area in the DP plastic body, the upper DP Molding assembly is arranged in the upper DP shell, and the rear cover is coated on the rear side of the DP plastic body and is spliced with the DP shell; the lower DP connector module is arranged in a lower section area in the DP plastic body; the upper DP moving assembly and the upper DP shell form an upper DP interface, and the upper DP interface is exposed in the upper section area of the front side of the DP shell; the lower DP connector module is provided with a lower DP interface, and the lower DP interface is exposed in the lower section area of the front side of the DP shell. The production and manufacturing of the double-layer DP connector are realized, meanwhile, the production yield is high, the production cost is favorably controlled, and the method is suitable for popularization and application.)

1. A dual layer DP connector, comprising: comprises a DP shell, a DP plastic body, a rear cover, an upper DP shell, an upper DP Molding assembly and a lower DP connector module; wherein:

the DP shell is coated outside the DP plastic body, the upper DP shell is arranged in an upper section area in the DP plastic body, the upper DP Molding assembly is arranged in the upper DP shell, and the rear cover is coated on the rear side of the DP plastic body and is spliced with the DP shell; the lower DP connector module is arranged in a lower section area in the DP plastic body;

the upper DP moving assembly and the upper DP shell form an upper DP interface, and the upper DP interface is exposed in the upper section area of the front side of the DP shell; the lower DP connector module is provided with a lower DP interface, and the lower DP interface is exposed in the lower section area of the front side of the DP shell.

2. The dual layer DP connector of claim 1, wherein: the upper DP Molding assembly is provided with a first terminal group and a second terminal group which are overlapped at an upper-lower interval, and the first terminal group and the second terminal group are bent downwards and extend in the upper section area of the rear side of the DP plastic body so that the welding feet of the first terminal group and the second terminal group extend out of the bottom of the DP plastic body;

the lower DP connector module is provided with a third terminal group and a fourth terminal group which are overlapped at an upper and lower interval, and welding pins of the third terminal group and the fourth terminal group extend out of the bottom of the DP plastic body.

3. The dual layer DP connector of claim 2, wherein: the welding feet of the first terminal group, the second terminal group, the third terminal group and the fourth terminal group are respectively arranged into one row, and the four rows of welding feet are arranged at the bottom of the DP plastic body from back to front at intervals.

4. The dual layer DP connector of claim 2, wherein: the upper DP moving assembly comprises an upper DP short-end plastic terminal module and an upper DP long-end plastic terminal module; the upper DP short-end plastic terminal module comprises a first terminal set, a first tongue plate and a first fixed seat, wherein the first tongue plate and the first fixed seat are fixed on the first terminal set through front-back spacing type injection molding; the upper DP long-end plastic terminal module comprises a second terminal group, a second tongue plate and a second fixed seat, wherein the second tongue plate and the second fixed seat are fixed on the second terminal group through front-back spacing type injection molding; the first tongue plate and the second tongue plate are assembled, stacked and positioned.

5. The dual layer DP connector of claim 4, wherein: the DP plastic body is of an integral injection molding structure, and a first assembly cavity, a second assembly cavity and a third assembly cavity are arranged in the DP plastic body; the first assembly cavity and the second assembly cavity are both concavely arranged from the front side of the DP plastic body to the back side, and are arranged at intervals up and down; the third assembly cavity is vertically arranged at the rear end of the DP plastic body and is positioned at the rear sides of the first assembly cavity and the second assembly cavity, the upper end of the third assembly cavity is communicated with the rear end of the first assembly cavity, and the lower end of the third assembly cavity is communicated with the bottom of the DP plastic body;

the upper DP shell is assembled in the first assembling cavity; the upper DP moving assembly is assembled in the upper DP shell from the rear end of the DP plastic body; the first fixed seat and the second fixed seat are positioned in the third assembly cavity; the lower DP connector module is assembled in the second assembly cavity.

6. The dual layer DP connector of claim 2, wherein: the lower DP connector module comprises a lower DP shell and a lower DP plastic terminal module arranged in the lower DP shell; the lower DP plastic terminal module comprises a lower DP plastic seat, a third terminal set and a fourth terminal set which are fixed on the lower DP plastic seat through injection molding, and a bottom cover assembled at the bottom of the lower DP plastic seat;

the lower DP plastic seat comprises a third tongue plate and a third fixed seat integrally connected to the rear end of the third tongue plate; the contact parts of the third terminal group and the fourth terminal group are respectively exposed at the upper side and the lower side of the third tongue plate, and the welding pins of the third terminal group and the fourth terminal group extend out of the bottom end of the third fixed seat and are arranged in two rows; the left side and the right side of the third fixed seat are both concavely provided with second assembling grooves with lower ends opened, the second assembling grooves extend up and down and penetrate through the left side and the right side of the third fixed seat, and the inner wall surface of each second assembling groove is further concavely provided with a second buckle groove; a stop wall is arranged at the front end of the bottom of the third fixed seat to be isolated between the welding leg of the fourth terminal group and the third tongue plate;

the bottom cover comprises a cover plate part horizontally and forwardly extending and an assembling seat integrally connected to the rear end of the cover plate part, the assembling seat protrudes upwards to extend out of the upper part of the cover plate part, welding leg holes which are arranged at intervals are formed in the assembling seat, the welding leg holes penetrate through the upper side and the lower side of the assembling seat, assembling arms extend upwards from the left side and the right side of the assembling seat, and second buckle protruding parts are convexly arranged on the inner sides of the assembling arms;

after the bottom cover is pressed into the bottom of the lower DP plastic seat, the welding pins of the third terminal group and the fourth terminal group respectively pass through the welding pin holes and extend out of the bottom of the assembling seat, the assembling arms are inserted into the second assembling grooves of the corresponding sides, the second buckle convex parts are clamped into the second buckle grooves of the corresponding sides, and meanwhile, the stop wall is limited on the front side face of the assembling seat.

7. The dual layer DP connector of claim 1, wherein: the DP shell comprises a front side plate, a left side plate and a right side plate, wherein the left side plate and the right side plate are integrally bent backwards and extend from the left end and the right end of the front side plate respectively; the front side plate is provided with an upper layer window and a lower layer window which are arranged at intervals up and down so that an upper layer DP interface and a lower layer DP interface can be exposed; the rear ends of the left side plate and the right side plate are provided with first riveting sheets;

the rear cover comprises a rear side cover plate part, a top plate part and a front buckle plate part, wherein the top plate part is integrally bent and extended forwards from the upper end of the rear side cover plate part, and the front buckle plate part is integrally bent and extended downwards from the front end of the top plate part;

the front side plate, the left side plate and the right side plate are respectively coated on the front side, the left side and the right side of the DP plastic body; the rear side cover plate part is coated on the rear side of the DP plastic body, the top plate part is coated on the top of the DP plastic body, and the front buckle plate part extends between the front side plate and the front side surface of the DP plastic body; and the first riveting sheet is positioned on the rear end surface of the rear cover plate part in a pressing mode.

8. The double-layer DP connector of claim 7, wherein: all be provided with fourth buckle recess on left side board and the right side board, the equal protruding fourth buckle convex part that is equipped with in left and right side of DP plastic body, after the DP shell is assembled on DP plastic body, the mutual lock location of fourth buckle convex part and fourth buckle recess.

9. The process of any one of claims 1 to 8, wherein: the preparation method comprises the following steps: respectively manufacturing a DP shell, a DP plastic body, a rear cover, an upper DP shell, an upper DP Molding assembly and a lower DP connector module;

assembling: the DP shell is assembled on the front side of the DP plastic body, the upper DP shell penetrates through the DP shell from front to back to be installed in an upper section area in the DP plastic body, the upper DP Molding assembly is installed in the upper DP shell from the rear side of the DP plastic body, the rear cover covers the rear side of the DP plastic body and is spliced with the DP shell, and the lower DP connector module is installed in a lower section area in the DP plastic body.

10. The process of claim 9, wherein: the assembling step includes the steps of:

step S1: sleeving the DP shell on the front side of the DP plastic body from front to back, wherein the left side plate and the right side plate of the DP shell are buckled and positioned with the left side and the right side of the DP plastic body;

step S2: the upper DP shell passes through an upper window of the DP shell from front to back and is arranged in a first assembly cavity in the DP plastic body;

step S3: installing an upper DP moving assembly in an upper DP shell from the rear side of the DP plastic body, wherein the first tongue plate and the second tongue plate are positioned in the upper DP shell, the second fixed seat is vertically positioned in a third assembly cavity, and the first fixed seat is horizontally positioned behind the third assembly cavity;

step S4: pressing the first fixing seat downwards into the third assembling cavity to achieve buckling and positioning;

step S5: riveting the second riveting sheet at the rear end of the upper DP shell at the rear end of the first tongue plate, and pre-riveting the first riveting sheets at the rear ends of the left and right side plates of the DP shell towards the rear end surface of the DP plastic body to ensure that a positioning gap is reserved between the first riveting sheet and the rear end surface of the DP plastic body;

step S6: pressing the rear cover downwards into the positioning gap from the top of the rear end of the DP plastic body, and simultaneously, extending a front buckle plate part of the rear cover between the front side plate and the front side surface of the DP plastic body;

step S7: carrying out secondary riveting on the first riveting sheet so as to enable the first riveting sheet to be positioned on the rear end face of the rear side cover plate part in a pressing mode;

step S8: and the lower DP connector module passes through the lower window of the DP shell from front to back and is arranged in a second assembly cavity in the DP plastic body.

Technical Field

The invention relates to the technical field of DP connectors, in particular to a double-layer DP connector and a manufacturing process thereof.

Background

The DP connector is mainly suitable for connecting a computer and a screen or a computer and a home theater system and is used as a high-definition digital display interface. The DP connector among the conventional art is single-layer interface usually, and it includes metal casing, plastic body and 20PIN terminal, and during the preparation, injection moulding obtains the plastic body earlier, is provided with a plurality of terminal grooves in the plastic body, then inserts 20PIN terminal in the plastic body with the mode cartridge of inserting PIN, then wraps the metal casing in the outside of plastic body again. According to the manufacturing method, the difficulty of inserting the PIN is high, the phenomena of bending, oblique insertion and even disconnection are easy to occur when the PIN is inserted, the reject ratio is high, the position precision of the terminal in the plastic body is difficult to control due to the technical precision of inserting the PIN, and the quality consistency of inserting the PIN is difficult to guarantee; when the DP connector with high production requirement is produced, the production yield is further low, which results in high production cost. And for the double-layer DP connector, because the upper layer DP interface and the lower layer DP interface need to be processed, the PIN insertion of 4 rows of terminals in total needs to be realized, and the realization difficulty is higher.

Therefore, a new technical solution is needed to solve the above problems.

Disclosure of Invention

In view of the above, the present invention is directed to the defects in the prior art, and the main object of the present invention is to provide a dual-layer DP connector and a manufacturing process thereof, which achieve the production and manufacturing of the dual-layer DP connector, and at the same time, have a high yield, are favorable for controlling the production cost, and are suitable for popularization and application.

In order to achieve the purpose, the invention adopts the following technical scheme:

a double-layer DP connector comprises a DP shell, a DP plastic body, a rear cover, an upper DP shell, an upper DP Molding assembly and a lower DP connector module; wherein:

the DP shell is coated outside the DP plastic body, the upper DP shell is arranged in an upper section area in the DP plastic body, the upper DP Molding assembly is arranged in the upper DP shell, and the rear cover is coated on the rear side of the DP plastic body and is spliced with the DP shell; the lower DP connector module is arranged in a lower section area in the DP plastic body;

the upper DP moving assembly and the upper DP shell form an upper DP interface, and the upper DP interface is exposed in the upper section area of the front side of the DP shell; the lower DP connector module is provided with a lower DP interface, and the lower DP interface is exposed in the lower section area of the front side of the DP shell.

As a preferred scheme, the upper DP Molding assembly has a first terminal set and a second terminal set stacked at an upper and lower interval, and the first terminal set and the second terminal set are bent and extended downward in an upper region of a rear side of the DP plastic body, so that solder pins of the first terminal set and the second terminal set extend out of the bottom of the DP plastic body;

the lower DP connector module is provided with a third terminal group and a fourth terminal group which are overlapped at an upper and lower interval, and welding pins of the third terminal group and the fourth terminal group extend out of the bottom of the DP plastic body.

As a preferred scheme, the solder tails of the first terminal group, the second terminal group, the third terminal group and the fourth terminal group are respectively arranged in a row, and the four rows of solder tails are arranged at the bottom of the DP plastic body at intervals from back to front.

As a preferred scheme, the upper layer DP moving assembly comprises an upper layer DP short end plastic terminal module and an upper layer DP long end plastic terminal module; the upper DP short-end plastic terminal module comprises a first terminal set, a first tongue plate and a first fixed seat, wherein the first tongue plate and the first fixed seat are fixed on the first terminal set through front-back spacing type injection molding; the upper DP long-end plastic terminal module comprises a second terminal group, a second tongue plate and a second fixed seat, wherein the second tongue plate and the second fixed seat are fixed on the second terminal group through front-back spacing type injection molding; the first tongue plate and the second tongue plate are assembled, stacked and positioned.

As a preferred scheme, the DP plastic body is an integral injection molding structure, and a first assembly cavity, a second assembly cavity and a third assembly cavity are arranged in the DP plastic body; the first assembly cavity and the second assembly cavity are both concavely arranged from the front side of the DP plastic body to the back side, and are arranged at intervals up and down; the third assembly cavity is vertically arranged at the rear end of the DP plastic body and is positioned at the rear sides of the first assembly cavity and the second assembly cavity, the upper end of the third assembly cavity is communicated with the rear end of the first assembly cavity, and the lower end of the third assembly cavity is communicated with the bottom of the DP plastic body;

the upper DP shell is assembled in the first assembling cavity; the upper DP moving assembly is assembled in the upper DP shell from the rear end of the DP plastic body; the first fixed seat and the second fixed seat are positioned in the third assembly cavity; the lower DP connector module is assembled in the second assembly cavity.

As a preferred scheme, the lower DP connector module comprises a lower DP housing and a lower DP plastic terminal module disposed in the lower DP housing; the lower DP plastic terminal module comprises a lower DP plastic seat, a third terminal set and a fourth terminal set which are fixed on the lower DP plastic seat through injection molding, and a bottom cover assembled at the bottom of the lower DP plastic seat;

the lower DP plastic seat comprises a third tongue plate and a third fixed seat integrally connected to the rear end of the third tongue plate; the contact parts of the third terminal group and the fourth terminal group are respectively exposed at the upper side and the lower side of the third tongue plate, and the welding pins of the third terminal group and the fourth terminal group extend out of the bottom end of the third fixed seat and are arranged in two rows; the left side and the right side of the third fixed seat are both concavely provided with second assembling grooves with lower ends opened, the second assembling grooves extend up and down and penetrate through the left side and the right side of the third fixed seat, and the inner wall surface of each second assembling groove is further concavely provided with a second buckle groove; a stop wall is arranged at the front end of the bottom of the third fixed seat to be isolated between the welding leg of the fourth terminal group and the third tongue plate;

the bottom cover comprises a cover plate part horizontally and forwardly extending and an assembling seat integrally connected to the rear end of the cover plate part, the assembling seat protrudes upwards to extend out of the upper part of the cover plate part, welding leg holes which are arranged at intervals are formed in the assembling seat, the welding leg holes penetrate through the upper side and the lower side of the assembling seat, assembling arms extend upwards from the left side and the right side of the assembling seat, and second buckle protruding parts are convexly arranged on the inner sides of the assembling arms;

after the bottom cover is pressed into the bottom of the lower DP plastic seat, the welding pins of the third terminal group and the fourth terminal group respectively pass through the welding pin holes and extend out of the bottom of the assembling seat, the assembling arms are inserted into the second assembling grooves of the corresponding sides, the second buckle convex parts are clamped into the second buckle grooves of the corresponding sides, and meanwhile, the stop wall is limited on the front side face of the assembling seat.

As a preferred scheme, the DP outer casing includes a front side plate, a left side plate and a right side plate, the left side plate and the right side plate are respectively bent and extended backward from the left end and the right end of the front side plate; the front side plate is provided with an upper layer window and a lower layer window which are arranged at intervals up and down so that an upper layer DP interface and a lower layer DP interface can be exposed; the rear ends of the left side plate and the right side plate are provided with first riveting sheets;

the rear cover comprises a rear side cover plate part, a top plate part and a front buckle plate part, wherein the top plate part is integrally bent and extended forwards from the upper end of the rear side cover plate part, and the front buckle plate part is integrally bent and extended downwards from the front end of the top plate part;

the front side plate, the left side plate and the right side plate are respectively coated on the front side, the left side and the right side of the DP plastic body; the rear side cover plate part is coated on the rear side of the DP plastic body, the top plate part is coated on the top of the DP plastic body, and the front buckle plate part extends between the front side plate and the front side surface of the DP plastic body; and the first riveting sheet is positioned on the rear end surface of the rear cover plate part in a pressing mode.

As a preferred scheme, all be provided with fourth buckle recess on left side board and the right side board, the left and right side of DP plastic body is all protruding to be equipped with fourth buckle convex part, after the DP shell is assembled on DP plastic body, fourth buckle convex part and the mutual lock location of fourth buckle recess.

A manufacturing process of a double-layer DP connector comprises the following preparation steps: respectively manufacturing a DP shell, a DP plastic body, a rear cover, an upper DP shell, an upper DP Molding assembly and a lower DP connector module;

assembling: the DP shell is assembled on the front side of the DP plastic body, the upper DP shell penetrates through the DP shell from front to back to be installed in an upper section area in the DP plastic body, the upper DP Molding assembly is installed in the upper DP shell from the rear side of the DP plastic body, the rear cover covers the rear side of the DP plastic body and is spliced with the DP shell, and the lower DP connector module is installed in a lower section area in the DP plastic body.

As a preferable scheme, the assembling step comprises the following steps:

step S1: sleeving the DP shell on the front side of the DP plastic body from front to back, wherein the left side plate and the right side plate of the DP shell are buckled and positioned with the left side and the right side of the DP plastic body;

step S2: the upper DP shell passes through an upper window of the DP shell from front to back and is arranged in a first assembly cavity in the DP plastic body;

step S3: installing an upper DP moving assembly in an upper DP shell from the rear side of the DP plastic body, wherein the first tongue plate and the second tongue plate are positioned in the upper DP shell, the second fixed seat is vertically positioned in a third assembly cavity, and the first fixed seat is horizontally positioned behind the third assembly cavity;

step S4: pressing the first fixing seat downwards into the third assembling cavity to achieve buckling and positioning;

step S5: riveting the second riveting sheet at the rear end of the upper DP shell at the rear end of the first tongue plate, and pre-riveting the first riveting sheets at the rear ends of the left and right side plates of the DP shell towards the rear end surface of the DP plastic body to ensure that a positioning gap is reserved between the first riveting sheet and the rear end surface of the DP plastic body;

step S6: pressing the rear cover downwards into the positioning gap from the top of the rear end of the DP plastic body, and simultaneously, extending a front buckle plate part of the rear cover between the front side plate and the front side surface of the DP plastic body;

step S7: carrying out secondary riveting on the first riveting sheet so as to enable the first riveting sheet to be positioned on the rear end face of the rear side cover plate part in a pressing mode;

step S8: and the lower DP connector module passes through the lower window of the DP shell from front to back and is arranged in a second assembly cavity in the DP plastic body.

Compared with the prior art, the DP connector module has obvious advantages and beneficial effects, and particularly, according to the technical scheme, the DP connector module mainly comprises a DP shell, a DP plastic body, a rear cover, an upper DP shell, an upper DP Molding assembly and a lower DP connector module; thus, the upper DP shell, the upper DP moving assembly and the lower DP connector module are assembled in the DP plastic body to form an upper DP interface and a lower DP interface; the production and the manufacture of the double-layer DP connector are realized, and meanwhile, the production yield is high, the production cost is favorably controlled, and the method is suitable for popularization and application.

Secondly, the upper DP Molding assembly comprises an upper DP short-end plastic terminal module and an upper DP long-end plastic terminal module; meanwhile, the lower DP plastic terminal module comprises a lower DP plastic seat, a third terminal group and a fourth terminal group which are fixed on the lower DP plastic seat through injection molding, and a bottom cover assembled at the bottom of the lower DP plastic seat; the reliability of the combination of the terminal and the plastic part is ensured, and the position precision controllability of the terminal is good; combine integrative injection moulding's DP plastic body, utilize first equipment chamber, second equipment chamber and the third equipment chamber that this internal setting of DP plastic realizes the equipment location of upper DP interface, lower floor DP interface, and equipment location effect is good, has improved the equipment precision.

Moreover, the positioning relation and the assembly mode among the DP shell, the rear cover, the DP plastic body and other structural parts are skillfully and reasonably designed, and the assembly efficiency is improved.

To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a diagram of an assembly structure of an embodiment of the present invention;

FIG. 2 is an exploded view of an embodiment of the present invention;

FIG. 3 is a diagram of a DP shell fabrication process according to an embodiment of the present invention;

FIG. 4 is a diagram illustrating an upper DP moving assembly manufacturing process according to an embodiment of the present invention;

FIG. 5 is a structural diagram of an upper DP moving assembly according to an embodiment of the present invention;

FIG. 6 is a diagram illustrating a process for manufacturing a lower DP plastic terminal module according to an embodiment of the present invention;

FIG. 7 is an exploded view of the lower DP plastic seat and the bottom lid according to the embodiment of the present invention;

FIG. 8 is a diagram illustrating an assembly process of the lower DP housing and the lower DP plastic terminal module according to an embodiment of the present invention;

FIG. 9 is a diagram illustrating an assembly process of the DP housing, the upper DP Molding assembly and the DP plastic body according to an embodiment of the present invention;

FIG. 10 is a structural diagram of a DP plastic body according to an embodiment of the present invention;

FIG. 11 is an enlarged fragmentary view of FIG. 9;

FIG. 12 is a diagram illustrating the process of riveting the upper DP shell and the upper DP Molding assembly, and the DP shell and the DP plastic body according to an embodiment of the present invention;

FIG. 13 is a partial assembled structural view of an embodiment of the present invention (without the back cover);

FIG. 14 is a process diagram of the assembly and staking of the back cover to the DP shell according to an embodiment of the present invention;

FIG. 15 is an enlarged fragmentary view of FIG. 14;

FIG. 16 is a diagram illustrating the assembly process of a lower DP connector module according to an embodiment of the present invention, being loaded backward into a third assembly cavity.

The attached drawings indicate the following:

the DP connector module comprises a DP housing 1, a DP plastic body 2, a rear cover 3, an upper DP Molding assembly 4, a lower DP connector module 5, an upper DP housing 6, an upper DP interface 8, a lower DP interface 9, an upper window 101, a lower window 102, a first assembly cavity 201, a second assembly cavity 202, a third assembly cavity 203, a rear cover plate 301, a top plate 302, a front buckle 303, an upper DP short end plastic terminal module 41, an upper DP long end plastic terminal module 42, a first terminal set 411, a first tongue plate 412, a first fixing seat 413, a second terminal set 421, a second tongue plate 422, a second fixing seat 423, a lower DP housing 501, a lower DP plastic terminal module 502, a lower DP plastic seat 521, a third terminal set 522, a fourth terminal set 523, a third tongue plate 5211, a third fixing seat 5212, a second assembly groove 503, a second buckle groove 504, a stop wall 505, a bottom cover 53, a cover plate 531, an assembly seat 531, a bottom cover plate 53, a assembly seat 532, The assembly structure comprises a welding pin hole 533, an assembly arm 534, a second buckling protrusion 535, a front side plate 11, a left side plate 12, a right side plate 13, a first riveting sheet 103, a fourth buckling groove 73, a fourth buckling protrusion 74, a fifth buckling protrusion 71, a fifth buckling groove 72, an abutting elastic sheet 75, a first assembly groove 4221, a positioning step 4222, a first buckling groove 4223, a positioning shoulder 4121, a first buckling protrusion 4122, a second riveting sheet 76 and a riveting concave position 77.

Detailed Description

Referring to fig. 1 to 16, specific structures of the embodiment of the invention are shown.

A double-layer DP connector comprises a DP shell 1, a DP plastic body 2, a rear cover 3, an upper DP shell 6, an upper DP Molding assembly 4 and a lower DP connector module 5; the DP shell 1 is wrapped outside the DP plastic body 2, the rear cover 3 is wrapped on the rear side of the DP plastic body 2 and is spliced with the DP shell 1, and therefore the DP plastic body 2 can be wrapped in multiple sides (mainly including the front side, the rear side, the left side, the right side and the top, and the bottom is used for extending out of a welding leg of a terminal). Upper DP shell 6 is installed in DP plastic body 2 in the upper segment region, and upper DP Molding subassembly 4 is installed in upper DP shell 6, and lower floor DP connector module 5 is installed in DP plastic body 2 in the lower segment region. The upper layer DP moving assembly 4 and the upper layer DP shell 6 form an upper layer DP interface 8, and the upper layer DP interface 8 is exposed in the upper section area of the front side of the DP shell 1; the lower DP connector module 5 has a lower DP interface 9, and the lower DP interface 9 is exposed in a front lower region of the DP housing 1.

Specifically, the method comprises the following steps:

the DP shell 1 is a metal shell and comprises a front side plate 11, a left side plate 12 and a right side plate 13, wherein the left side plate 12 and the right side plate 13 are integrally bent backwards and extended from the left end and the right end of the front side plate 11 respectively; the front side plate 11 is provided with an upper window 101 and a lower window 102 which are arranged at an interval from top to bottom.

DP plastic body 2 is integrative injection moulding structure, be provided with first equipment chamber 201, second equipment chamber 202 and third equipment chamber 203 in the DP plastic body 2, first equipment chamber 201, second equipment chamber 202 are established from the front side of DP plastic body 2 backward concave, and interval arrangement about first equipment chamber 201, the second equipment chamber 202, third equipment chamber 203 is vertical to be set up in the rear end of DP plastic body 2 and to be located the rear side of first equipment chamber 201, second equipment chamber 202, the upper end of third equipment chamber 203 link up with the rear end of first equipment chamber 201. The lower end of the third assembly cavity 203 penetrates through the bottom of the DP plastic body 2.

The rear cover 3 is a metal cover and comprises a rear cover plate part 301, a top plate part 302 and a front buckle plate part 303, wherein the top plate part 302 is integrally bent forwards from the upper end of the rear cover plate part 301 and extends, and the front buckle plate part 303 is integrally bent downwards from the front end of the top plate part 302 and extends.

The upper DP shell 6 is a metal shell and comprises an upper DP shell top plate, an upper DP shell left side plate, an upper DP shell bottom plate and an upper DP shell right side plate which are sequentially connected and surrounded to form a cavity.

The upper layer DP moving component 4 comprises an upper layer DP short-end plastic terminal module 41 and an upper layer DP long-end plastic terminal module 42; the upper layer DP short-end plastic terminal module 41 includes a first terminal set 411, a first tongue plate 412 fixed on the first terminal set by front-back spacing injection molding, and a first fixing seat 413; the upper layer DP long-end plastic terminal module 42 includes a second terminal set 421, a second tongue plate 422 fixed on the second terminal set 421 by front-back spacing injection molding, and a second fixing seat 423; the first tongue plate 412 and the second tongue plate 422 are assembled and stacked.

The upper DP shell 6 is assembled in the first assembly cavity 201; the upper DP moving component 4 is assembled in the upper DP shell 6 from the rear end of the DP plastic body 2; the first fixing seat 413 and the second fixing seat 423 are located in the third assembly cavity 203, a fifth buckle protrusion 71 is convexly arranged on the left side and the right side of the first fixing seat 413, a fifth buckle groove 72 is concavely arranged on the left inner side wall and the right inner side wall of the third assembly cavity 203, and the fifth buckle protrusion 71 and the fifth buckle groove 72 are buckled and positioned with each other; the lower DP connector module 5 is assembled in the second assembly cavity 202.

The lower DP connector module 5 comprises a lower DP housing 501 and a lower DP plastic terminal module 502 disposed in the lower DP housing 501; the lower DP plastic terminal module 502 includes a lower DP plastic seat 521, a third terminal set 522 and a fourth terminal set 523 fixed on the lower DP plastic seat 521 by injection molding, and a bottom cover 53 assembled at the bottom of the lower DP plastic seat 521; the lower DP plastic seat 521 comprises a third tongue plate 5211 and a third fixed seat 5212 integrally connected to the rear end of the third tongue plate 5211; the contact parts of the third terminal group 522 and the fourth terminal group 523 are respectively exposed at the upper side and the lower side of the third tongue plate 5211, and the welding pins of the third terminal group 522 and the fourth terminal group 523 extend out of the bottom end of the third fixing seat 5212 and are arranged in two rows; a second assembly groove 503 with an open lower end is concavely formed on the left side and the right side of the third fixing seat 5212, the second assembly groove 503 extends up and down and penetrates through the left side and the right side of the third fixing seat 5212, and a second buckling groove 504 is further concavely formed on the inner wall surface of the second assembly groove 503; a stop wall 505 is disposed at the front end of the bottom of the third fixing seat 5212 to be isolated between the solder leg of the fourth terminal group 523 and the third tongue plate 5211; the bottom cover 53 comprises a cover plate portion 531 extending horizontally and forwardly and an assembling seat 532 integrally connected to the rear end of the cover plate portion 531, the assembling seat 532 protrudes upward and extends above the cover plate portion 531, the assembling seat 532 is provided with leg holes 533 arranged at a front-rear interval, the leg holes 533 penetrate through the upper side and the lower side of the assembling seat 532, the left side and the right side of the assembling seat 532 are both extended upward with assembling arms 534, and the inner side of the assembling arms 534 is protruded with second buckling protrusions 535; after the bottom cap 53 is pressed into the bottom of the lower DP plastic seat 521, the solder legs of the third terminal set 522 and the fourth terminal set 523 respectively pass through the solder leg holes 533 and extend out of the bottom of the assembly seat 532, the assembly arm 534 is inserted into the second assembly groove 503 on the corresponding side, the second snap convex 535 is snapped into the second snap concave 504 on the corresponding side, and meanwhile, the stopper wall 505 is limited on the front side of the assembly seat 532.

The rear cover 3 comprises a rear side cover plate part, a top plate part and a front buckle plate part, wherein the top plate part is integrally bent and extended forwards from the upper end of the rear side cover plate part, and the front buckle plate part is integrally bent and extended downwards from the front end of the top plate part; the front side plate 11, the left side plate 12 and the right side plate 13 of the DP shell 1 are respectively coated on the front side, the left side and the right side of the DP plastic body 2; the rear side cover plate part is coated on the rear side of the DP plastic body 2, the top plate part is coated on the top of the DP plastic body 2, and the front buckle plate part extends between the front side plate 11 and the front side surface of the DP plastic body 2; and a first riveting sheet 103 extends from the rear ends of the left and right side plates 12, 13. The first riveting sheet 103 is press-fitted and positioned on the rear end surface of the rear side cover plate portion. All be provided with fourth buckle recess 73 on left side board 12 and the right side board 13, the left and right side of DP plastic body is all protruding to be equipped with fourth buckle convex part 74, after DP shell 1 assembles on DP plastic body 2, fourth buckle convex part 74 and the mutual lock location of fourth buckle recess 73.

As shown in fig. 3, a shell punching plate formed by sequentially and flatly connecting a left side plate 12, a front side plate 11 and a right side plate 13 is obtained by punching a metal plate, and pre-folding lines are arranged between the left side plate 12 and the front side plate 11 and between the front side plate 11 and the right side plate 13; the material belts at the two ends are respectively connected with the two ends of the front side plate 11, the lower ends of the left side plate 12 and the right side plate 13 are respectively provided with welding feet, and the welding feet are subjected to tinning treatment; then utilize 6 benders of upper DP shell to bend the shell and handle, specifically indicate to bend into interior groveling with left side board 12, right side board 13 along corresponding pre-break line, so, obtain DP shell 1. The upper end edge and the lower end edge of the upper window 101 and the upper end edge of the lower window 102 extend towards the interior of the DP shell 1 to form abutting elastic sheets 75;

as shown in fig. 4, Molding produces an upper layer DP short end plastic terminal module 41 and an upper layer DP long end plastic terminal module 42. When Molding the upper DP short-end plastic terminal module 41, the front and rear ends of the first terminal group are connected with the material belt respectively, after Molding, the material belt at the front end is removed first, and then the first terminal group is bent, so that the first fixing seat and the first tongue plate are horizontally arranged and bent to be 90 degrees, at this moment, the first fixing seat is vertically arranged, and the first tongue plate is horizontally arranged. Similarly, when the upper layer DP long end plastic terminal module 42 is molded by Molding, the front and rear ends of the second terminal set are connected with the tape, and after Molding, the front tape is removed. The upper DP short end plastic terminal module 41 after bending is pre-installed on the upper DP long end plastic terminal module 42, specifically, the first tongue plate 412 of the upper DP short end plastic terminal module 41 is fitted to the lower side of the second tongue plate 422 of the upper DP long end plastic terminal module 42 from back to front, and the first tongue plate 412 and the second tongue plate 422 are assembled and stacked to be positioned, so that the upper DP short end plastic terminal module 41 and the upper DP long end plastic terminal module are assembled to form the upper DP Molding assembly 4.

As shown in fig. 5, a first assembling groove 4221, a positioning step 4222 and a first buckle groove 4223 are provided at the lower side of the second tongue plate 422, correspondingly, a positioning shoulder 4121 extends from the left side and the right side of the rear end of the first tongue plate 412, and a first buckle protrusion 4122 is respectively provided at the positions close to the left side and the right side of the top of the rear end of the positioning shoulder 4121, the first tongue plate 412 is inserted along the first assembling groove 4221 until the front end of the positioning shoulder 4121 of the first tongue plate 412 abuts against the positioning step 4222 of the second tongue plate 422, and meanwhile, the first buckle protrusion 4122 of the first tongue plate 412 is also clamped into the first buckle groove 4223 of the second tongue plate 422, so that the first tongue plate 412 and the second tongue plate 422 are stably assembled.

As shown in fig. 6, Molding produces a lower layer DP plastic terminal module 502, where the lower layer DP plastic terminal module 502 includes a lower layer DP plastic seat 521, a third terminal set 522 and a fourth terminal set 523 fixed on the lower layer DP plastic seat 521 by injection Molding, and a bottom cover 53 assembled at the bottom of the lower layer DP plastic seat 521. The third terminal group 522 and the fourth terminal group 523 are arranged in an upper row and a lower row, and the lower DP plastic seat 521 includes a third tongue plate 5211 and a third fixing seat 5212 integrally connected to the rear end of the third tongue plate 5211. The contact portions of the third terminal group 522 and the fourth terminal group 523 are respectively exposed at the upper side and the lower side of the third tongue plate 5211, and the solder tails of the third terminal group 522 and the fourth terminal group 523 extend out of the rear end of the third fixing seat 5212 and are arranged in two rows. During Molding, the front end and the rear end of the third terminal group 522 are respectively connected with a material belt, after Molding, the material belt at the front end is removed, and then the welding leg at the rear end of the third terminal group 522 is bent, so that the welding leg at the rear end of the third terminal group 522 is bent from horizontal arrangement to 90-degree arrangement, and at the moment, the welding legs at the rear end of the third terminal group 522 are vertically arranged and arranged in a front row and a rear row; the third tongue plate 5211 is horizontally arranged. Then, the rear end of the tape is cut off, and the bottom cap 53 is pressed into the bottom of the lower DP plastic seat 521.

As shown in fig. 7, the left and right sides of the third fixing seat 5212 of the lower DP plastic seat 521 are both concavely provided with a second assembling groove 503 with an open lower end, the second assembling groove 503 extends up and down and penetrates through the left and right sides of the third fixing seat 5212, and the inner wall surface of the second assembling groove 503 is further concavely provided with a second fastening groove 504; and, a stop wall 505 is disposed at the bottom front end of the third fixing seat 5212 to isolate the space between the solder leg of the fourth terminal group 523 and the third tongue plate 5211. The bottom cover 53 includes a cover plate portion 531 extending horizontally forward and an assembling seat 532 integrally connected to the rear end of the cover plate portion 531, the assembling seat 532 protrudes upward and extends above the cover plate portion 531, the assembling seat 532 is provided with leg holes 533 arranged at a front-rear interval, the leg holes 533 penetrate through the upper side and the lower side of the assembling seat 532, both the left side and the right side of the assembling seat 532 extend upward to form an assembling arm 534, and the inner side of the assembling arm 534 is protruded to form a second buckling protrusion 535. After the bottom cover 53 is pressed into the bottom of the lower DP plastic seat 521, the solder legs of the third terminal set 522 and the fourth terminal set 523 respectively pass through the solder leg holes 533 and extend out of the bottom of the assembly seat 532, the assembly arm 534 is inserted into the second assembly groove 503 on the corresponding side, the second snap convex 535 is snapped into the second snap concave 504 on the corresponding side, meanwhile, the stopper wall 505 is limited on the front side of the assembly seat 532, preferably, a third snap convex may be convexly arranged on the rear side of the stopper wall 505, a third snap concave is concavely arranged on the front side of the assembly seat 532, and when the stopper wall 505 is limited on the front side of the assembly seat 532, the third snap convex is snapped into the third snap concave.

As shown in fig. 8, the lower DP housing 501 is mounted into the lower DP plastic terminal module 502 (which may be assembled manually or automatically by a machine), and then the tail cap of the lower DP housing 501 is riveted downward to be bent from a horizontal state to a vertical state, so as to complete the fabrication of the lower DP connector module 5; the riveting process can be automatically completed by the lower DP shell 501 buckling press-in machine, and then the lower DP connector module 5 is sent to the lower DP electrical measuring machine for automatic electrical measurement.

As shown in fig. 9, the DP case 1 is loaded into the DP plastic body 2 from front to back (which may be manually assembled or automatically assembled by a machine), and the left and right sides of the DP case 1 are provided with fourth fastening grooves to be fastened and positioned with the fourth fastening protrusions on the left and right sides of the DP plastic body 2. Then, the upper layer DP shell 6 is loaded into the DP plastic body 2 from front to back (which can be manually assembled or automatically assembled by a machine); then, the upper DP Molding assembly 4 is installed (manually or automatically) from the rear end of the DP plastic body 2, and the stacked first and second tongue plates extend into the upper DP housing 6.

As shown in fig. 10 and 11, the DP plastic body 2 is an integral injection molding structure, and includes a left body side, a right body side, a top body, a right body side and a rear body side, wherein the left body side and the right body side are respectively connected to the lower ends of the left and right sides of the top body, the left and right sides of the middle body side are respectively connected to the inner sides of the left body side and the right body side, the upper end of the rear body side is connected to the rear end of the middle body side, and the left and right sides of the rear body side are respectively connected to the inner sides of the left body side and the right body side; thus, the first assembly cavity 201 is formed between the upper sides of the left body part, the right body part, the top body part and the middle body part, the second assembly cavity 202 is formed between the rear sides of the left body part, the right body part, the top body part and the rear body part, and the third assembly cavity 203 is formed between the lower sides of the left body part, the right body part and the middle body part. The upper layer DP shell 6 is arranged in the first assembly cavity 201 of the DP plastic body 2 from front to back, after the upper layer DP Molding assembly 4 is arranged in the rear end of the DP plastic body 2, the first tongue plate and the second tongue plate which are overlapped extend into the upper layer DP shell 6, and the first fixed seat is vertically arranged in the second assembly cavity 202.

As shown in fig. 12 and 13, the second fixing seat 423 is bent downward, and the first fixing seat 413 is also vertically disposed in the second assembly cavity 202 and behind the first fixing seat 413. Then, pressing an upper DP shell 6 from the front side of the DP shell 1, pressing an upper DP Molding component 4 from the rear side of the DP plastic body 2, and simultaneously acting to form mutual insertion of the upper DP shell 6 and the upper DP Molding component 4, so that the stress balance is good, and quick assembly in place can be realized; automatic or semi-automatic operation can generally be achieved using the upper DP MD DIP press. Then, the second riveting sheet 76 at the rear end of the upper DP shell 6 is riveted inward to press the rear end of the second tongue plate 422, and during the riveting operation, the second riveting sheet 76 may be first punched at 45 degrees and then riveted at 90 degrees. Then, the first riveting sheets 103 at the rear ends of the left side plate 12 and the right side plate 13 of the DP housing 1 are riveted towards the rear end of the DP plastic body 2, so that the DP housing 1 and the DP plastic body 2 form a pressing and positioning.

As shown in fig. 14, the rear cover 3 is assembled to the rear side of the DP plastic body 2. During assembly, the rear cover 3 is pressed downwards, riveting concave positions 77 are respectively arranged on the rear cover 3 corresponding to the riveting sheets at the rear ends of the left side plate 12 and the right side plate 13 of the DP shell 1, after the rear cover 3 is pressed downwards in place, the riveting concave positions 77 are just matched with the first riveting sheets 103 corresponding to the rear ends of the left side plate 12 and the right side plate 13 of the DP shell 1, then riveting operation is performed on the first riveting sheets 103 at the rear ends of the left side plate 12 and the right side plate 13 of the DP shell 1, four riveting points are riveted to the bottom, and at the moment, the riveting sheets at the rear ends of the left side plate 12 and the right side plate 13 of the DP shell 1 are tightly riveted in the riveting concave positions 77 of the rear cover 3 (automatic riveting can be performed by adopting a front-rear shell riveting press of an upper layer DP). Then, the material tape connected by the solder tails of the first terminal set and the second terminal set is cut off (which can be automatically cut off by using an upper DP integral pin cutter), so as to obtain the product structure shown in fig. 15.

As shown in fig. 16, the lower DP connector module 5 is loaded into the second assembly cavity 202 from front to back, pre-assembled, and during electrical measurement, the upper DP electrical measurement machine is used to press the lower DP connector module 5, so that the lower DP connector module 5 is completely assembled in place, and at this time, the solder tails of the first terminal group 411, the second terminal group 421, the third terminal group 522, and the fourth terminal group 523 are arranged in four rows at the bottom of the DP plastic body 2. And then, electrically testing the upper DP connector module by using an upper DP electrical testing machine.

And, referring to fig. 1 to 16, a process for manufacturing a dual-layer DP connector is described, which includes the following steps: respectively manufacturing a DP shell 1, a DP plastic body 2, a rear cover 3, an upper DP shell 6, an upper DP Molding assembly 4 and a lower DP connector module 5;

assembling: assemble DP shell 1 in the front side of DP plastic body 2, pass DP shell 1 and pack into DP plastic body 2 inner upper segment region from going to back with upper DP shell 6 again, pack upper DP Molding subassembly 4 in upper DP shell 6 from the rear side of DP plastic body 2, again with the cladding of back lid 3 in the rear side of DP plastic body 2 and form the concatenation with DP shell 1, install lower floor's DP connector module 5 in DP plastic body 2 inner lower segment region again. Preferably, the assembling step comprises the steps of:

step S1: sleeving the DP shell 1 on the front side of the DP plastic body 2 from front to back, and buckling and positioning the left and right side plates 13 of the DP shell 1 and the left and right sides of the DP plastic body 2;

step S2: the upper DP shell 6 passes through an upper window 101 of the DP shell 1 from front to back and is arranged in a first assembly cavity 201 in the DP plastic body 2;

step S3: installing an upper DP moving assembly 4 in an upper DP shell 6 from the rear side of the DP plastic body 2, wherein the first tongue plate and the second tongue plate are positioned in the upper DP shell 6, the second fixed seat is vertically positioned in the third assembly cavity 203, and the first fixed seat is horizontally positioned behind the third assembly cavity 203;

step S4: pressing the first fixing seat downwards into the third assembly cavity 203 to achieve buckling and positioning;

step S5: riveting the second riveting sheet at the rear end of the upper DP shell 6 at the rear end of the first tongue plate, and pre-riveting the first riveting sheets at the rear ends of the left and right side plates 13 of the DP shell 1 towards the rear end surface of the DP plastic body 2, so that a positioning gap is reserved between the first riveting sheets and the rear end surface of the DP plastic body 2;

step S6: the rear cover 3 is pressed downwards into the positioning gap from the top of the rear end of the DP plastic body 2, and meanwhile, the front buckle part 303 of the rear cover 3 extends between the front side plate 11 and the front side surface of the DP plastic body 2;

step S7: performing secondary riveting on the first riveting sheet so as to enable the first riveting sheet to be positioned on the rear end face of the rear side cover plate part 301 in a pressing mode;

step S8: the lower DP connector module 5 is loaded into the second assembly cavity 202 in the DP plastic body 2 through the lower window 102 of the DP housing 1 from front to back.

The design of the invention is characterized in that the DP connector module mainly comprises a DP shell 1, a DP plastic body 2, a rear cover 3, an upper DP shell 6, an upper DP Molding component 4 and a lower DP connector module 5; thus, the upper DP shell 6, the upper DP moving component 4 and the lower DP connector module 5 are assembled in the DP plastic body 2 to form an upper DP interface and a lower DP interface; the production and the manufacture of the double-layer DP connector are realized, and meanwhile, the production yield is high, the production cost is favorably controlled, and the method is suitable for popularization and application.

Secondly, the upper DP moving component 4 comprises an upper DP short-end plastic terminal module and an upper DP long-end plastic terminal module; meanwhile, the lower DP plastic terminal module 502 includes a lower DP plastic seat 521, a third terminal set 522 and a fourth terminal set 523 fixed on the lower DP plastic seat 521 by injection molding, and a bottom cover 53 assembled at the bottom of the lower DP plastic seat 521; the reliability of the combination of the terminal and the plastic part is ensured, and the position precision controllability of the terminal is good; combine integrative injection moulding's DP plastic body 2, utilize first equipment chamber 201, second equipment chamber 202 and the third equipment chamber 203 that sets up in the DP plastic body 2 to realize the equipment location of upper DP interface, lower floor's DP interface, the equipment location is effectual, has improved the equipment precision.

Moreover, the positioning relation and the assembly mode among the structural parts of the DP shell 1, the rear cover 3, the DP plastic body 2 and the like are skillfully and reasonably designed, and the assembly efficiency is improved.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "upper", "lower", "front", "rear", "left", "right", etc., indicating the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and operation, and should not be construed as limiting the specific scope of the present invention.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.