CN110998986B

CN110998986B - Front and back double-sided electric connector

Info

Publication number: CN110998986B
Application number: CN201880044168.9A
Authority: CN
Inventors: 蔡周贤
Original assignee: Jie Li Intellectual Property Co ltd
Current assignee: Jie Li Intellectual Property Co ltd
Priority date: 2017-06-30
Filing date: 2018-07-02
Publication date: 2021-08-17
Anticipated expiration: 2038-07-02
Also published as: CN110998986A; WO2019001586A1; CN113725668A

Abstract

The invention provides a bidirectional double-sided electric connector, which comprises: two insulating base bodies; the terminal comprises two rows of first terminals, wherein the two rows of first terminals are assembled into two rows of terminal grooves of two insulating base bodies in the vertical direction, the terminals are integrally provided with a springing part, a fixed part and a connecting pin from front to back, the front sections of the springing parts correspond to the butt joint parts and are bent to be provided with a contact part protruding in the vertical direction, the rear sections of the springing parts and the fixed parts are butted against the bottom surfaces of the terminal grooves at the same level, the depth of the terminal grooves is larger than the material thickness of the first terminals, the insulating base bodies are provided with fixed structures for fixing the fixed parts of one row of first terminals, and the rear sections of the springing parts of one row of first terminals can still bounce up and down against the bottom surfaces of the terminal grooves; a row of second terminals formed by blanking metal plates, wherein the second terminals are integrally provided with two elastic arms, a fixing part and a pin, the two elastic arms are respectively provided with a contact part protruding towards the middle, the row of second terminals are assembled into two rows of terminal grooves of the two insulating base bodies in the up-down direction, and the plate surfaces of the second terminals are vertical; and a metal shell which covers the two insulating base bodies.

Description

Front and back double-sided electric connector

Technical Field

The present invention relates to an electrical connector, and more particularly to a front-back dual-sided electrical connector.

Background

Since the functions of various electronic products are becoming more and more powerful and handheld devices are becoming more and more popular, signal transmission between various products or devices is becoming more and more demanding, wherein the signal transmission between these devices is performed through signal interfaces. The signal interface is, for example, an Electrical connector or a complementary Electrical connector mated with the Electrical connector, wherein the Electrical connector is an Electrical connection socket (Electrical connection), and the complementary Electrical connector is an Electrical connection plug (Electrical connector).

Before the electrical connector is mated with the electrical socket, the electrical connector must face the electrical socket in the correct direction to mate the electrical connector and the electrical socket, that is, the electrical socket has a plugging direction, which is commonly called a fool-proof function, and this function is to ensure that the connection interface of the electrical connector can contact with the contact terminal of the electrical socket. However, most users do not have the habit of directing the electrical connector to the electrical connection socket in the correct direction, the fool-proof function causes the failure of the mating between the electrical connector and the electrical connection socket, and then the user turns the electrical connector to achieve the correct mating. In other words, the fool-proof function causes the user's trouble.

Therefore, a bidirectional electrical connector with a double-sided docking function is provided in the market, which is provided with two sets of contact terminals to eliminate the plugging directionality of the bidirectional electrical connector. The user can mate the bi-directional electrical connector with the complementary electrical connector in either direction. However, the known bi-directional electrical connector is expensive to manufacture and has a low reliability of its function. Therefore, how to make the bidirectional electrical connector have stable reliability and reduce the cost of the electrical connector is a goal of common efforts in the industry.

Disclosure of Invention

The present invention is directed to a two-way two-sided electrical connector, which can reduce the manufacturing and assembling costs and has a two-sided docking function.

Another objective of the present invention is to provide a bidirectional double-sided electrical connector, wherein the ground terminal and the power terminal are formed by a row of four pin-type female-fork terminals, which has a larger surface area, and the four terminals have vertically aligned ground contact portions and vertically aligned power contact portions.

To achieve the above object, the present invention provides a bidirectional double-sided electrical connector, which comprises: the two insulation seat bodies are integrally provided with a base part and a butt joint part, the butt joint part is connected to the front end of the base part, the butt joint part is provided with a bottom plate and two side plates, the base parts of the two insulation seat bodies are overlapped up and down, a connecting groove is formed between the bottom plates of the butt joint parts of the two insulation seat bodies, the two side plates of the butt joint parts of the two insulation seat bodies are mutually butted to form a sleeving frame body, a row of barriers are arranged on the inner surfaces of the two insulation seat bodies to be separated into a row of terminal grooves extending back and forth, and the terminal grooves extend from the base to the butt joint part and can be used for placing terminals from the up and down direction; two rows of first terminals, which are formed by bending and stamping metal plates, wherein the two rows of first terminals are assembled into two rows of terminal grooves of the two insulating base bodies in the vertical direction, the terminals are integrally provided with a springing part, a fixed part and a pin from front to back, the front section of the springing part corresponds to the butt joint part and is bent to be provided with a contact part protruding in the vertical direction, the springing part can bounce up and down in the direction vertical to the plate surface, the rear section of the springing part and the fixed part are horizontally abutted against the bottom surface of the terminal groove, the depth of the terminal groove is larger than the material thickness of the first terminals, so that the rear section of the springing part and the fixed part are sunk into the terminal groove, the insulating base bodies are provided with fixed parts for fixing the rows of first terminals, the rear section of the springing part of the rows of first terminals can still abut against the bottom surface of the terminal groove to bounce up and down, and the pin extends to the rear end of the base part to be exposed, the same contact circuits of the contact parts of the two rows of first terminals are arranged in a reverse direction; a row of second terminals which are a row of pin-type terminals and formed by blanking metal sheets, wherein the second terminals are integrally provided with two elastic arms, a fixing part and a connecting pin, the two elastic arms are in a fish-fork shape, the two elastic arms are respectively provided with a contact part protruding towards the middle, the two contact parts are aligned up and down to form a space, the two elastic arms are parallel to the direction of the plate surface and bounce up and down, the row of second terminals are assembled into the two rows of terminal grooves of the two insulating base bodies in the up and down direction, and the plate surface of the second terminals is vertical; and the metal shell coats the two insulating base bodies and is provided with a four-side wrapped main shell body, the four-side wrapped main shell body covers the butt joint part of the two insulating base bodies, the two insulating base bodies form a butt joint structure, and the butt joint structure can be positioned on a butt joint connector in a positive and negative two-way mode.

The above and other objects, advantages and features of the present invention will become more apparent from the following detailed description of the preferred embodiments when taken in conjunction with the accompanying drawings.

Drawings

Fig. 1 is a perspective view of a first embodiment of the present invention.

Fig. 2 is a side sectional view of the first embodiment of the present invention.

Fig. 3 is a front view of the first embodiment of the present invention.

Fig. 4 is a top view of the first embodiment of the present invention.

Fig. 5 is a side sectional view (a state in which the terminal 20 is sprung) of the first embodiment of the present invention.

Fig. 6 is an exploded perspective view of the first embodiment of the present invention.

Fig. 7 is an exploded perspective view of the first embodiment of the present invention.

Fig. 8 is an open perspective view of the two insulation bases 10 according to the first embodiment of the present invention.

Fig. 9 is a perspective view of a manufacturing process of the first embodiment of the present invention.

Fig. 10 is a perspective view of a manufacturing process of the first embodiment of the present invention.

Fig. 11 is a perspective view of a manufacturing process of the first embodiment of the present invention.

Fig. 12 is a perspective view of a manufacturing process of the first embodiment of the present invention.

Fig. 13 is a perspective view of a manufacturing process of the first embodiment of the present invention.

Fig. 14 is a perspective view of a manufacturing process of the first embodiment of the present invention.

Fig. 15 is a perspective view of a manufacturing process of the first embodiment of the present invention.

Fig. 16 is a schematic side view of the terminal according to the first embodiment of the present invention.

Fig. 17 is an opened perspective view of the two insulation base bodies 10 according to the first variation of the first embodiment of the present invention.

Fig. 18 is a perspective view of two insulation base bodies 10 stacked together according to a first variation of the first embodiment of the present invention.

Fig. 19 is an exploded perspective view of a second alternate implementation of the first embodiment of the present invention.

Fig. 20 is a perspective view of two insulation base bodies 10 stacked together according to the first variation of the first embodiment of the present invention.

Fig. 21 is an exploded perspective view of a third alternate implementation of the first embodiment of the present invention.

Fig. 22 is an exploded perspective view of a fourth alternate implementation of the first embodiment of the present invention.

Fig. 23 is a perspective assembly view of a fourth alternative implementation of the first embodiment of the present invention.

Fig. 24 is a perspective assembly view of a fifth alternative implementation of the first embodiment of the present invention.

Fig. 25 is an exploded perspective view of a sixth alternate implementation of the first embodiment of the present invention.

Fig. 25A is an exploded perspective view of a seventh alternate implementation of the first embodiment of the present invention.

Fig. 25B is a partial perspective view of a seventh alternate implementation of the first embodiment of the present invention.

Fig. 26 is an exploded perspective view of an eighth alternate implementation of the first embodiment of the present invention.

Fig. 27 is an exploded perspective view of a ninth alternate implementation of the first embodiment of the present invention.

Fig. 28 is a perspective view of a manufacturing process of the second embodiment of the present invention.

Fig. 29 is a perspective view of a manufacturing flow of the second embodiment of the present invention.

Fig. 30 is a perspective view of a manufacturing process of the second embodiment of the present invention.

Fig. 31 is a perspective view of a manufacturing flow of the second embodiment of the present invention.

Fig. 32 is a perspective view of a manufacturing process of the second embodiment of the present invention.

Fig. 33 is a perspective view of a manufacturing process of the second embodiment of the present invention.

Fig. 34 is a perspective view of a first alternate implementation of the second embodiment of the present invention.

Fig. 35 is an exploded perspective view of a first alternate implementation of the second embodiment of the present invention.

Fig. 36 is a top view of a grounding member in accordance with a first alternate embodiment of the second embodiment of the present invention.

Fig. 37 is a top view of a grounding member in accordance with a second alternate embodiment of the second embodiment of the present invention.

Fig. 38 is a top view of a grounding member in accordance with a third alternative embodiment of the second embodiment of the present invention.

Fig. 39 is an exploded perspective view of a fourth alternate implementation of the second embodiment of the present invention.

Fig. 40 is a perspective view of a fifth alternative implementation of the second embodiment of the present invention.

Fig. 41 is a perspective view of a manufacturing flow of the third embodiment of the present invention.

Fig. 42 is a perspective view of a manufacturing flow of the third embodiment of the present invention.

Fig. 43 is a perspective view of a manufacturing flow of the third embodiment of the present invention.

Fig. 44 is a perspective view of a manufacturing flow of the third embodiment of the present invention.

Fig. 45 is a perspective view of a manufacturing process of the third embodiment of the present invention.

Fig. 46 is an exploded perspective view of a first alternate implementation of the third embodiment of the present invention.

Fig. 47 is a perspective assembly view of two rows of terminals according to a first alternative implementation of the third embodiment of the present invention.

Fig. 48 is a perspective combination view of a first variation of the third embodiment of the present invention before secondary processing.

Fig. 49 is a perspective combination view of a first variation of the third embodiment of the present invention after secondary processing.

Fig. 50 is a perspective combination view of a second variation of the third embodiment of the present invention before secondary processing.

Fig. 51 is a perspective combination view of a second variation of the third embodiment of the present invention after secondary processing.

Fig. 52 is a top view of a second variation of the third embodiment of the present invention, shown prior to secondary processing.

Fig. 53 is a side sectional view of an implementation state of a second variation implementation of the third embodiment of the invention.

Fig. 54 is a front view of a second alternate implementation of the third embodiment of the present invention.

Fig. 55 is a top view of a fourth embodiment of the present invention.

FIG. 56 is a side sectional view of the fourth embodiment of the present invention in an implementation state.

Fig. 57 is a top view of a first alternate implementation of the fourth embodiment of the present invention.

Fig. 58 is a side sectional view in perspective of a first alternate embodiment of the fourth embodiment of the present invention.

Fig. 59 is a perspective view of a fifth embodiment of the present invention.

Fig. 60 is a perspective view of an unassembled outer housing of the fifth embodiment of the present invention.

Fig. 61 is a perspective view of a sixth embodiment of the present invention.

Fig. 62 is a perspective view of the sixth embodiment of the present invention, with the outer case not yet assembled.

Fig. 63 is a perspective view of a seventh embodiment of the present invention.

Fig. 64 is a perspective view of an eighth embodiment of the present invention.

Fig. 65 is a perspective view of a ninth embodiment of the present invention.

Fig. 66 is a schematic plan view of a tenth embodiment of the present invention.

Fig. 67 is a schematic plan view of an eleventh embodiment of the present invention.

Fig. 68 is an exploded perspective view of a twelfth embodiment of the present invention.

Fig. 69 is an exploded perspective view of a thirteenth embodiment of the present invention.

Fig. 70 is an exploded perspective view of a fourteenth embodiment of the invention.

Detailed Description

Referring to fig. 1 to 16, a first embodiment of the present invention is a bidirectional dual-sided USB TYPE-C3.0 electrical connector, which includes two insulating base bodies 10, two rows of contact portions, a metal partition 30, two grounding pieces 40, and a metal shell 50, wherein:

the insulation base 10 is integrally provided with a base 11 and a butt-joint portion 12, the butt-joint portion 12 is connected to the front end of the base 11, the inner surfaces of the bases 11 of the two insulation bases are provided with joint surfaces 111 for abutting, and an insulation base is provided with a locking hole 151 to be locked with a locking column 152 of another insulation base, the rear section of the base 11 is higher than the front section and is provided with a locking block 113 outside the rear section, the butt-joint portion 12 is provided with a bottom plate 121 and two side plates 122, the two side plates 122 are connected to the left and right sides of the bottom plate 121, the front section of the inner surface of the bottom plate 12 is provided with a front section surface 144 and a rear section surface 143, the rear section surface 143 protrudes a height from the front section surface 144, the front section surface 144 is provided with three through holes 145, the inner surface of the insulation base 10 is provided with a row of barriers 141 divided into a row of terminal grooves 142 extending forward and backward, the terminal grooves 142 extend from the base 11 to the butt-joint portion 12 and can be placed into terminals from the up and down direction, the front section of the outer surface of the bottom plate 12 is provided with a concave surface 148 and is provided with three more than the concave surfaces 147 corresponding to the three through holes 145, the three concave surfaces 147 are more concave than the three concave surfaces 148, a plastic bridge 146 is integrally disposed on one side of the bases of the two insulation base bodies 20 for interconnection, when an insulation base body 20 is turned over by 180 degrees, the two insulation base bodies 20 are vertically overlapped, the joint surfaces 111 of the bases of the two insulation base bodies are abutted, the front sections of the two side plates 122 of the butt joint portion 12 of the two insulation base bodies are higher and are mutually jointed, the middle section is lower and is an opening 124, and a connecting groove 125 is formed between the inner surfaces of the bottom plates 121 of the two insulation base bodies.

As shown in fig. 3, the two rows of contacts are represented by a, the upper row of contacts is represented by a, the contact circuit numbers are arranged from right to left in the order of a1, a2, A3 … a12, the lower row of contacts is represented by B, the contact circuit numbers are arranged from right to left in the order of B12, B11, B10 … B1, the two rows of contacts are arranged at equal intervals in the order of the contact circuit numbers, the same contact circuit numbers of the two rows of contacts are arranged in opposite directions, the two rows of contacts are formed on two rows of terminals 20 and one row of terminals 90, the two rows of terminals 20 are two rows of first terminals, and the one row of terminals 90 are one row of first terminals.

The two rows of terminals 20 are assembled into the two rows of terminal grooves 142 of the two insulating base bodies 10 in the up-down direction, the two rows of terminals 20 are respectively 8 continuous terminals formed by bending and punching a plate, when the manufacture is completed, the terminals are connected to a material belt and then assembled into the two insulating base bodies 10 in a whole row, the contact circuit serial numbers of the upper row of terminals 20 are arranged from right to left in sequence as A2, A3, A5, A6, A7, A8, A10, A11, A2, A3 and … A12, the contact circuit serial numbers of the lower row of terminals 20 are arranged from right to left in sequence as B11, B10, B8, B7, B6, B5, B3 and B2, each terminal 20 is integrally provided with a spring part 22, a fixed part 23 and a pin part 24 by the front section of the spring part 22 facing the concave area 123 of the corresponding to the terminal part and bending to be provided with a contact part 221 projecting from the up-down direction of the spring part 143, the spring part 22 is horizontally attached to the pin groove 223, the depth of the terminal groove 142 is larger than the material thickness of the terminal, so that the rear section 223 of the spring part and the fixing part 23 are sunk into the terminal groove 142, and the fixing structure 140 is formed by secondary processing and sealing the position corresponding to the fixing part 23, the fixing structure 140 covers the fixing part 23 of the row of terminals 20 and is slightly sunk on the plane of the joint surface 111, the pin 24 horizontally extends out of the rear end of the base, and the front end of the front fixing part 21 is an electroless plating layer 25 exposed out of the front end of the insulating base 10.

As shown in fig. 5, when the elastic portion 22 of the two rows of terminals is elastically pressed, according to the mechanics principle, the rear section of the elastic portion of the terminal horizontally abuts against the bottom surface of the terminal slot to have the supporting effect of the middle section of the elastic arm, i.e. the elastic portion is formed with a middle section fulcrum 224 supported by the bottom surface 1421 of the terminal slot, i.e. when the contact portion 221 is elastically pressed toward the bottom surface 1421 of the terminal slot, the rear section 223 of the elastic portion after the middle section fulcrum 224 is elastically reversed, so that the rear section 223 of the elastic portion except the middle section fulcrum 24 can be partially separated from the bottom surface 1421 of the terminal slot to be bent and elastically moved to form a gap GP between the bottom surface 1421 of the terminal slot of the base and the rear section 223 of the elastic portion, thereby increasing the positive force and elasticity of the terminal contact.

Referring to fig. 12, the row of terminals 90 is 4 pin-type female terminals, the terminal 90 is formed by blanking a plate, the terminal 90 has two elastic arms 92, a fixing portion 93 and a connecting pin 94, the two elastic arms 92 are in a fish-fork shape, the two elastic arms are respectively provided with a contact portion 921 protruding from the middle, the contact portions 921 are aligned up and down to form a space, the two elastic arms 92 bounce up and down parallel to the plate surface direction, the contact portions 921 on the row of terminals 90 are arranged in the order of a1, a4, a9 and a12 from right to left, the contact portions 921 on the row of terminals 90 are arranged in the order of B12, B9, B4 and B1 from right to left, the row of terminals 90 are assembled into the two rows of terminal slots 142 of the two insulating bases 10 from up and down, and the plate surface of the terminal is vertical.

The contact circuit number of USB TYPE-C specified by the USB Association is as follows: 1 and 12 are a pair of ground terminals arranged in bilateral symmetry, 4 and 9 are a pair of power terminals arranged in bilateral symmetry, 2 and 3 are a pair of high-differential signal terminals (TX +, TX-), 10 and 11 are another pair of high-differential signal terminals (RX +, RX-), 6 and 7 are a pair of low-differential signal terminals (D +, D-), 5 and 8 are detection terminals, wherein the ground terminals and the power terminals have large current transmission requirements, the other terminals do not have large current transmission requirements, the vertically aligned ground contacts A1/B12 and A12/B1 are electrically connected, the vertically aligned power contacts A4/B9 and A9/B4 are electrically connected, so the present embodiment adopts a row of 4 female-type terminals 90, 4 terminals 90 are vertically aligned ground contacts A1/B12 and A12/B1, and vertically aligned power contacts A4/B9, A9/B4, the board of the terminal 90 is vertically assembled in the terminal slot, and the design can have a larger board area and can exceed the board area of the two rows of terminals 20.

The metal partition 30 is disposed between the two insulating bases 10 and joined to the fixing portion 40, the metal partition 30 has a main board surface 31, the left and right sides of the main board surface 31 respectively extend forward to form an integral body with an elastic buckle 33 and extend backward to form an integral body with a horizontal pin 32, and the elastic buckle 33 can bounce left and right corresponding to the opening 124.

The two grounding pieces 40 are respectively connected and positioned outside the bottom plate 121 of the butt joint part 12 of the two insulation base bodies 10, the grounding piece 40 is provided with a positioning piece 42 and a twisting piece 45, the twisting piece 45 is arranged in the middle of the positioning piece and is bent in a continuous U-shaped front-back direction, the twisting piece 45 is integrally connected with three elastic pieces 41, the three elastic pieces 41 can be bounced up and down, any two elastic pieces 41 form a U-shaped piece body, the positioning piece 42 and the twisting piece 45 of the grounding piece 40 are placed on a concave surface 148 outside the bottom plate 121, and the three elastic pieces 41 penetrate through the three through holes 145 and protrude out of the front section surface 144.

The metal housing 50 is formed by drawing metal, and covers the two insulating base bodies 10 and abuts against the two grounding pieces 40, the metal housing 50 is provided with a four-surface-covered main housing 51 and a positioning portion 52, the four-surface-covered main housing 51 covers the abutting portion 12 of the two insulating base bodies 10, the two abutting portion form an abutting structure, the abutting structure can be positioned on an abutting connector in a forward and reverse two-way manner, the positioning portion 52 is higher than the four-surface-covered main housing 51 and is provided with a clamping hole 53, and the clamping hole 53 clamps the clamping block 113.

The manufacturing method of this example is as follows:

referring to fig. 9, providing the two rows of terminals 20, the two rows of terminals 20 are stamped by the same metal sheet and arranged adjacently, and both ends of the two rows of terminals are connected to a material belt 60, the material belt 60 is provided with a sub material belt 68 connected to the upper row of terminals, and the two rows of terminals 20 are arranged in the same direction in sequence with the same contact circuit serial number; providing the two insulation base bodies 10, wherein the two insulation base bodies 10 are integrally formed by plastic injection molding, and a plastic bridge 146 is integrally disposed on one side of the base 11 of the two insulation base bodies 20 and connected to each other.

Referring to fig. 10, the two rows of terminals 20 are then assembled into the two rows of terminal grooves 142 of the two insulating base bodies 10 in the vertical direction, the rear sections 223 of the springing portions of the two rows of terminals 20 and the fixing portions 23 are horizontally abutted against the bottom surfaces of the two rows of terminal grooves 142 of the two insulating base bodies 10, and the depth of the terminal grooves 142 is larger than the material thickness of the terminals 20, so that the rear sections 223 of the springing portions and the fixing portions 23 are sunk into the terminal grooves 142.

Referring to fig. 11, the fixing structure 140 is formed by molding the position corresponding to the fixing portion 23, and the fixing structure 140 covers the fixing portion 23 of the row of terminals 20 and is slightly recessed in the plane of the bonding surface 111.

Referring to fig. 12, next, the row of terminals 90 is assembled on the butt-joint portion 12 of the row of terminal slots 142 of the insulating base 10, and the two grounding pieces 40 are assembled outside the butt-joint portion 12 of the two insulating bases 10, at this time, the material tape 60 at the front ends of the two rows of terminals is cut off, and the material tape at the rear end of the row of terminals 20 on the other insulating base 10 is cut off.

Referring to fig. 13, the metal partition 30 is disposed on a fixing structure 140 of an insulating base 10.

Referring to fig. 14, the insulating base 20 separated from the material tape is turned over 180 degrees and stacked on another insulating base 20, the two insulating bases 20 are stacked up and down, and the same contact circuit serial numbers of the two rows of terminals 20 are arranged in reverse order.

Referring to fig. 15, the plastic bridge 146 on one side of the two insulating base bodies 10 is cut off, a cut 147 is formed on one side of the two insulating base bodies 10, and finally the metal shell 50 is assembled and fixed on the two insulating base bodies 10.

Furthermore, the fixing structure for fixing the terminals 20 by the two insulating bases 20 can also be formed by thermally melting the spacers between the terminal slots 142 to fix the terminals, or the terminal slots 142 are formed with a slot structure, so that when the terminals are placed into the terminal slots in the up-down direction and then displaced in the front-back direction, the fixing portions of the terminals can be fixed by the slot structure.

Referring to fig. 16, when the two rows of terminals 20 are assembled in the terminal slots 142, the springing portion 22 has elastic pressure-relief towards the bottom 1421 of the terminal slot, so as to ensure that the two rows of terminals 20 can have consistent spring height when assembled in the terminal slots 142, i.e. each row of contact portions 221 can have consistent height.

As described by the above configuration, the present invention has the following advantages:

1. because the springing part rear section 223 of the two rows of terminals and the fixed part 23 are horizontally abutted against the bottom surface of the terminal groove at the same level, the terminal groove can be easily assembled and simplified in stamping, the manufacturing cost is reduced, and the springing part rear section of the terminal is horizontally abutted against the bottom surface of the terminal groove to have a springing arm middle section supporting effect, so that the positive force and the elasticity of the terminal contact are increased.

2. The two insulation base bodies 10 are integrally plastic-injected and integrally connected by the plastic material bridge 146, so that the assembly rate is doubled.

3. The design of the present embodiment adopts a row of 4 pin-type female-fork-shaped terminals 90, so that the board area is large and the 4 terminals 90 are respectively the ground contacts A1/B12 and A12/B1 aligned up and down and the power contacts A4/B9 and A9/B4 aligned up and down.

4. When the two rows of terminals 20 are assembled in the terminal slots 142, the springing portion 22 has elastic pressure-relief towards the bottom 1421 of the terminal slot, so as to ensure that the two rows of terminals 20 can have consistent spring height when assembled in the terminal slots 142, i.e. each row of contact portions 221 can have consistent height.

Please refer to fig. 17 and 18, which are a first variation of the first embodiment of the present invention, and are substantially the same as the first embodiment, wherein the plastic bridge 146 is smaller and does not need to be cut.

Please refer to fig. 19 and fig. 20, which are substantially the same as the first embodiment, wherein the difference is that the two rows of terminals 20 of the first embodiment are cantilevered terminals, that is, the ends of the spring portion 22 are suspended, so that the two insulation bases 10 corresponding to the spring portion 22 can be adhered with an insulation film 86 to prevent the spring portion 22 from contacting the metal shell.

Fig. 21 shows a third variation of the first embodiment of the present invention, which is substantially the same as the first embodiment, wherein the difference is that the front ends 21 of the two rows of terminals 20 of the present variation are fixed to the insulating base 10.

Please refer to fig. 22 and fig. 23, which are a fourth variation of the first embodiment of the present invention, which is substantially the same as the first embodiment, wherein the difference is that the number of the two rows of terminals 20 of the first embodiment is 12, no female-fork type terminal is provided, the metal partition 30 is provided with a fixing structure 140 by plastic injection molding, the fixing structure 140 fills the terminal groove 142 to fix each terminal, the fixing structure 140 is a fixing portion that an insulator is assembled between the two insulating base bodies 10 and presses and fixes the two rows of terminals 20, the upper and lower surfaces of the fixing structure 140 are respectively provided with a plurality of convex surfaces 1401 and a plurality of concave surfaces 1402 arranged at intervals, and the plurality of convex surfaces 1401 can extend into the two rows of terminal grooves 142 to fix the fixing portion of each terminal.

Referring to fig. 24, a fifth variation of the first embodiment of the present invention is substantially the same as the fourth variation, wherein the difference is that the fixing structure 140 is an insulating film.

Please refer to fig. 25, which is a sixth variation of the first embodiment of the present invention, which is substantially the same as the first embodiment, wherein the difference is that another plastic material bridge 149 is disposed at the front end of the two insulating bases 10, the material strip 60 is disposed with two material bridges 66 connected to the terminals at both sides of the two rows of terminals 20, and the pins 24 of the two rows of terminals 20 are further connected to a material strip 68.

Referring to fig. 25A, a seventh variation of the first embodiment of the present invention is substantially the same as the first embodiment, wherein the difference is: the modified embodiment has the lead angle 927 formed on both sides of the contact portion 921 of the row of terminals 90, so that the area of the contact portion 921 is reduced to conform to the USB standard.

Referring to fig. 25B, thinned structures 928 may also be formed on both sides of the contact portions 921 of the row of terminals 90, so that the area of the contact portions 921 is reduced to conform to the USB association specification.

Referring to fig. 26, an eighth variation of the first embodiment of the present invention is substantially the same as the fourth variation and the sixth variation, wherein the difference is that another plastic bridge 149 is disposed at the front ends of the two insulating bases 10.

Referring to fig. 27, a ninth variation implementation of the first embodiment of the present invention is substantially the same as the eighth variation implementation, wherein the difference is that the embodiment is a bidirectional dual-sided USB TYPE-C2.0 electrical connector.

Referring to fig. 28 to 33, a second embodiment of the present invention is a bidirectional dual-sided USB TYPE-C3.0 electrical connector, which includes two insulating housing bodies 10, two rows of terminals 20, a metal partition 30, two grounding pieces 40, and a metal shell 50, which is substantially the same as the seventh variation of the first embodiment, wherein the difference is that the fixing portions 23 of the two rows of terminals 20 are respectively connected to an L-shaped piece 201, the 4L-shaped pieces 201 are connected to 4 material bridges 66 of the material tape 60, wherein the width of the two material bridges 66 connected to the lower row of terminals 20 is wider, and two sides of the rear end of the upper housing body 10 are respectively provided with a side plate 150 for positioning the width of a circuit board.

The manufacturing method of this example is as follows:

referring to fig. 28, providing the two rows of terminals 20, the two rows of terminals 20 are punched by the same metal sheet to be arranged adjacently, and the fixing portions 23 of the terminals on both sides of the two rows of terminals 20 are respectively connected to an L-shaped material sheet 201, the 4L-shaped material sheets 201 are connected to 4 material bridges 66 of the material tape 60, wherein the two material bridges 66 connected to the lower row of terminals 20 have wider widths, the pins 24 of the two rows of terminals 20 are further connected to a material tape 68, the material tape 68 is separated from the material tape 60 and is located in the material tape 60, and the same contact circuit serial numbers of the two rows of terminals 20 are arranged in the same direction in sequence; and providing the two insulation base bodies 10, wherein the two insulation base bodies 10 are integrally formed by plastic injection molding, and the front and rear sections of one side of the base 11 of the two insulation base bodies 20 are integrally provided with a

plastic material bridge

146, 149 for connecting with each other.

Referring to fig. 29, next, the two rows of terminals 20 are assembled into the two rows of terminal grooves 142 of the two insulating base bodies 10 in the vertical direction, the rear sections 223 of the springing portions of the two rows of terminals 20 and the fixing portions 23 are horizontally abutted to the bottom surfaces of the two rows of terminal grooves 142 of the two insulating base bodies 10, the depth of the terminal grooves 142 is greater than the material thickness of the terminals 20, so that the rear sections 223 of the springing portions and the fixing portions 23 are sunk into the terminal grooves 142; then, the fixing structure 140 is formed by molding the position corresponding to the fixing portion 23, and the fixing structure 140 covers the fixing portion 23 of the row of terminals 20 and is slightly recessed in the plane of the bonding surface 111.

Referring to fig. 30, the metal partition 30 is then placed on the fixing structure 140 of an insulating base 10, the material strip 60 at the front ends of the two rows of terminals is cut off, and the two material strips 60 and the two narrower material bridges 66 are cut off, at this time, the two insulating bases 10 are connected to the material strip 60 only by the two wider material bridges 66.

Referring to fig. 31, the insulating base 10 separated from the material tape is turned over 180 degrees and stacked on another insulating base 10, the two insulating bases 10 are stacked up and down, and the same contact circuit serial numbers of the two rows of terminals 20 are arranged in reverse order.

Referring to fig. 32, the

plastic bridges

146 and 149 on one side of the two insulating base bodies 10 are cut off, a cut 147 is formed on one side of the two insulating base bodies 10, and at this time, two grounding pieces 40 are assembled on the front sections of the two insulating base bodies 10.

Referring to fig. 33, the metal housing 50 is assembled from front to back and then wrapped and fixed on the two insulating base bodies 10, and finally, the two tapes 66 are cut off.

Referring to fig. 34 to fig. 36, a first variation of the second embodiment of the present invention is substantially the same as the second embodiment, wherein the difference is that the two insulation seat bodies 10 are provided with a concave surface 147, a concave surface 148 and a latch 153 from front to back, the concave surface 147 is more recessed than the concave surface 148 and is located in front of and on both sides of the three through holes 145, the concave surface 148 is located on the back section of the insulation seat body 10, the concave surface 148 is provided with two side portions 1481 extending forward, the two side portions 1481 are located at the two side arcs of the insulation seat body 10 and are connected to the concave surface 147, and the latch 153 is located on the back section of the concave surface 148.

The two grounding members 40 are respectively provided with a positioning plate 42, a torsion plate 45 and three elastic sheets 41, the positioning plate 42 is jointed and positioned on the concave surface 148 and approximately flush, the positioning plate 42 is provided with a locking hole 424 and two abutting elastic sheets 426, the locking hole 424 is a long hole extending in the left-right direction, the front end of the locking hole 424 is provided with an elastic sheet 425, the locking hole 424 can elastically lock the locking block 153 by the elastic sheet 425, the two abutting elastic sheets 426 protrude in the up-down direction and can abut against the metal shell, two sides of the positioning plate 42 extend forwards and are provided with two side portions 421, the front ends of the two side portions 421 are connected with the torsion plate 45, the two side portions 421 and the torsion plate 45 form a transparent area 422, the two side portions 421 are jointed with the two side portions 1481 in an arc surface shape, the torsion plate 45 is provided with the concave surface 147, the thickness of the torsion plate 45 is smaller than the depth of the concave surface 147, the three elastic sheets 41 are connected with the torsion plate 45 and extend backwards, the three elastic pieces 41 and the twisting piece 45 are formed as an integral continuous bending and extending plate, so the three elastic pieces 41 are in an inverted U shape and protrude out of the three openings 145 in the vertical direction, and since the concave surface 147 is more concave than the concave surface 148, after the two insulation base bodies 10 are sleeved on the metal shell 50, the twisting piece 45 has twisting gaps on the concave surface 147 for twisting, thereby increasing the elasticity of the three elastic pieces 41.

Please refer to fig. 37, which is a second variation of the second embodiment of the present invention, and is substantially the same as the first variation of the second embodiment, wherein the difference is that the three resilient sheets 41 of the grounding member 40 do not have an inverted U shape.

Please refer to fig. 38, which is a third variation of the second embodiment of the present invention, which is substantially the same as the second variation of the fifty-third embodiment, wherein the difference is that the torsion piece 45 of the grounding member 40 has two inverted U shapes respectively located between two elastic pieces 41.

Referring to fig. 39, a fourth variation of the second embodiment of the present invention is substantially the same as the first variation of the second embodiment, wherein the difference is that two side portions 421 of the positioning plate 42 of the grounding member 40 are located on the inner side and are planar.

Please refer to fig. 40, which is a fifth variation of the second embodiment of the present invention, and is substantially the same as the fourth variation of the second embodiment, wherein the difference is that the grounding member 40 has only two elastic sheets 41.

Referring to fig. 41 to 45, a third embodiment of the present invention is shown, which is a bidirectional dual-sided USB TYPE-C2.0 electrical connector, and is substantially the same as the second embodiment, wherein the difference is: in this embodiment, 7 terminals a1, a4, a5, a6, a7, a9, a12 are provided in the upper row of terminals 20, and 5 terminals B1, B4, a5, B9, B12 are provided in the lower row of terminals 20.

The manufacturing method of this embodiment is substantially the same as the second embodiment, wherein the difference is that no grounding member is installed in this embodiment, and the pins 24 of the upper and lower terminals 20 are in a row of horizontal equal height and level, and wherein 4 pairs of pins 24 of the terminals, such as a1/B12, a4/B9, a9/B4, and a11/B1, are in parallel or adjacent to each other in horizontal equal height.

Referring to fig. 46 to fig. 49, a first variation of the third embodiment of the present invention is shown, which is a bidirectional double-sided USB TYPE-C2.0 electrical connector, and is substantially the same as the third embodiment, wherein the difference is: in this embodiment, the base 11 of the lower insulating base 10 extends rearward to form a pad 114, and the pad 114 has a row of pin slots 115 and two U-shaped slots 116; the pin 24 of a pair of power terminals B4/B9 of the lower row terminal 20 is integrally connected with a U-shaped connecting piece 208, the pin 24 of a pair of ground terminals B1/B12 is integrally connected with a U-shaped connecting piece 208, the two U-shaped connecting pieces 208 extend backwards to bypass the pin of the middle terminal and are in a large U-shaped and small U-shaped shape, and the two U-shaped connecting pieces 208 and the pin of the lower row terminal are in a height difference; the pin 24 of a pair of power terminals A4/A9 of the upper row terminal 20 is integrally connected with a U-shaped connecting piece 208, the pin 24 of a pair of ground terminals B1/B12 is integrally connected with a U-shaped connecting piece 208, the two U-shaped connecting pieces 208 extend backwards to bypass the pin of the middle terminal and are in a large U-shaped and small U-shaped shape, and the two U-shaped connecting pieces 208 and the pin of the upper row terminal are in a height difference.

Referring to fig. 47 and 48, when two insulating base bodies 10 are stacked up and down, the pins 24 of two rows of terminals are arranged in the pin recess 115, wherein the aligned A1 and B12 are ground terminals, A12 and B1 are ground terminals, A4 and B9 are power terminals, so that the pins 23 of the 4 pairs of terminals are arranged in the pin slots 115 of the bonding pad 114 in an up-down overlapping manner, and the two pairs of U-shaped connecting pieces 208 of the two rows of terminals 20 are overlapped and sunk into the two U-shaped grooves 116, in order to prevent the two pairs of overlapped U-shaped connecting sheets 208 from being exposed, a secondary process is performed to heat-melt the plurality of bumps 119 to form a covering surface 120 covering the two U-shaped grooves 116 and the pins 24 of A4 and A12, as shown in fig. 49, only 6 pins 24 such as a1, a5, a6, a7, B5 and a9 are left, in addition, the surface of the pin 24 of A1 is provided with a through hole 246, and the pin 32 of the metal partition 30 is connected to the through hole 246.

Referring to fig. 50 to 54, a second variation of the third embodiment of the present invention is shown, which is a bidirectional dual-sided USB TYPE-C3.0 electrical connector, which is substantially the same as the first variation of the third embodiment, wherein the difference is: in this embodiment, two pairs of high-differential signal terminals are added, i.e., the upper row of terminals is added with a2 and A3, the lower row of terminals is added with B10 and B11, wherein the pins 24 of a2 and A3 are folded upwards and extended horizontally and forwards so as to be staggered with the pins 24 of B10 and B11, the lower row of terminals is removed with B5, a4 and A5 of the upper row of terminals are electrically connected by welding a resistor, and A5 is not provided with pins, so that the pins of this embodiment have 8 pins 24 such as a1, B11, B10, a2, A3, A6, a7, and a 9.

Referring to fig. 55 to 56, a fourth embodiment of the present invention is shown, which is a bidirectional dual-sided USB TYPE-C3.0 electrical connector substantially similar to the first and second embodiments, wherein the difference is: in the present embodiment, the horizontal sections of the pins 24 of the two pairs of high differential signal terminals (B2/B3, B10/B11) of the lower row of terminals are shorter than the horizontal sections of the pins 23 of the two pairs of high differential signal terminals (a2/A3, a10/a11) of the upper row of terminals, and the present embodiment is electrically connected to a circuit board 280, the circuit board 280 is a multi-layer board and has a metal layer 283 disposed therein, and the pads soldered to the pins 24 of the two pairs of high differential signal terminals (B2/B3, B10/B11) of the lower row of terminals are electrically connected to the other side of the circuit board through the conductive holes 284, so that the two pairs of high differential signal terminals (B2/B3, B10/B11) and the two pairs of high differential signal terminals (a2/A3, a10/a11) are respectively transmitted to the circuits on the two sides of the circuit board 280, and the two pairs of high differential signal terminals are separated by the metal layer 283 to reduce electromagnetic interference.

Referring to fig. 57 to fig. 58, a first variation of the fourth embodiment of the present invention is shown, which is a bidirectional dual-sided USB TYPE-C3.0 electrical connector, and is substantially the same as the first variation of the fourth embodiment, wherein the differences are: the horizontal section of the pin 24 of the lower terminal having only one pair of high differential signal terminals (B10/B11) is shorter than the horizontal section of the pin 23 of the upper terminal having only one pair of high differential signal terminals (A2/A3).

Referring to fig. 59 and 60, a fifth embodiment of the present invention is a portable disc 500 with an electrical connector of the present invention, which includes an outer casing 230, a circuit board 240, an electronic device 250, and an electrical connector 3, wherein:

the circuit board 240 is provided with a plurality of conductive contacts and a plurality of printed circuits (not shown).

The electronic device 250 is electrically connected to the circuit board 240, the electronic device 250 includes an electronic unit 251, a control chip 252, and a circuit safety protection device 253, the electronic unit 251 is a main device of the electronic device 250, in this embodiment, a storage unit, which can be a memory,

the control chip 252 controls the operation of the electronic unit 251, and the circuit safety protection device 253 includes a plurality of circuit safety protection elements, such as a power safety control chip, an over-current protection element, an over-voltage protection element, a short-circuit protection element, a resistor, a capacitor, and the like. The power safety control chip can provide the following protection: input high voltage protection, input anti-reverse protection, output overcurrent protection, output overvoltage protection, output short circuit protection, battery overcharge and overdischarge protection, battery cell PTC protection and charge/discharge temperature protection.

The electrical connector 3 is a bi-directional dual-sided USB TYPE-C2.0/3.0/3.1 electrical connector, and can be constructed as the first to fourth embodiments, and the electrical connector 3 is electrically connected to the circuit board 240 and the electronic device 250.

The outer housing 230 covers the circuit board 240, the electronic device 250, and the rear section of the electrical connector 3, and the front section of the electrical connector 3 and the insertion opening 551 of the connection slot are exposed out of the outer housing 230.

Please refer to fig. 61 and fig. 62, which are a sixth embodiment of the present invention, the present embodiment is a card reader 501 with an electrical connector of the present invention, and the card reader 501 includes a housing 230, a circuit board 240, an electronic device 250, and an electrical connector 3, which is substantially the same as the fifth embodiment and will not be described again, wherein the main difference is that the electronic unit of the electronic device 250 is an electronic assembly of a card reader.

Referring to fig. 63, a seventh embodiment of the present invention is an adapting electrical connector 502 having the electrical connector of the present invention, which includes a adapting circuit, a first electrical connector 1, a second electrical connector 2 and an outer housing 230, wherein the adapting circuit is disposed on a circuit board 240, the first electrical connector 1 is disposed on one side of the circuit board 240, the second electrical connector 2 is disposed on the other side of the circuit board 240, one end of the adapting circuit is electrically connected to the first electrical connector 1, the other end is electrically connected to the second electrical connector 2, the adapting circuit is used to enable the first electrical connector 1 to be adapted to three second electrical connectors 2, the first electrical connector 1 is a USB a TYPE 2.0/3.0/3.1 connector, the second electrical connector 2 is a bidirectional USB TYPE-C2.0/3.0/3.1 electrical connector, and the structure thereof can be as in the first to fourth embodiments, the outer housing 230 covers the circuit board 240, and the insertion openings of the connection slots of the first electrical connector 1 and the second electrical connector 2 are exposed out of the outer housing 230.

In addition, the circuit board 240 is electrically connected to an electronic device 250, the electronic device 250 includes an electronic unit, a control chip, and a circuit safety protection device, the electronic unit is an electronic assembly of the adapter, the electronic unit can switch and connect different interfaces, so that the first electrical connector 1 and the second electrical connector 2 of different interfaces can be connected to each other, the control chip controls the operation of the electronic unit, and the circuit safety protection device includes a plurality of circuit safety protection elements, such as a power safety control chip, an overcurrent protection element, an overvoltage protection element, a short circuit protection element, a resistor, a capacitor, etc.

Referring to fig. 64, an eighth embodiment of the present invention is an electrical adapter 503 with an electrical connector of the present invention, which is substantially the same as the seventh embodiment, and the difference is that the second electrical connector 1 of the present embodiment is a USB a type 2.0/3.0/3.1 socket.

Please refer to fig. 65, which is a ninth embodiment of the present invention, the present embodiment is an adapter electrical connector 504 with the electrical connector of the present invention, which includes an adapter circuit, a first electrical connector 1, and a second electrical connector 2, wherein the adapter circuit is an electrical connection wire 260, one end of the adapter circuit is electrically connected to the first electrical connector 1, and the other end is electrically connected to the second electrical connector 2, the adapter circuit is used to achieve the purpose that the first electrical connector 1 is adapted to the second electrical connector 2, the first electrical connector 1 is a USB TYPE 2.0/3.0/3.1 connector, the second electrical connector 2 is a bidirectional dual-sided USB TYPE-C2.0/3.0/3.1 electrical connector, and the structure thereof can be as that of the first to fifth embodiments.

Referring to fig. 66, a tenth embodiment of the present invention is an electrical adaptor connector 505 with the electrical connector of the present invention, which is substantially the same as the ninth embodiment, and the difference is that the second electrical connector 2 of the present embodiment is a bidirectional dual-sided USB TYPE-C2.0/3.0/3.1 electrical connector, and the structure thereof can be as that of the first to fourth embodiments; the first electrical connector 1 can be a D-SUB connector or a female socket, or HDMI, or Display Port, or eSATA, or RJ connector, or network cable connector, or a memory card socket (such as SD memory card socket), or a smart card socket, or various electronic connectors or female sockets.

Please refer to fig. 67, which is an eleventh embodiment of the present invention, the present embodiment is an electrical adapter 506 having an electrical connector of the present invention, and is substantially similar to the seventh embodiment, and the difference thereof is that the second electrical connector 2 of the present embodiment is a bi-directional dual-sided USB TYPE-C2.0/3.0/3.1 electrical connector, which has a structure similar to the structure of the first to fourth embodiments; the first electrical connector 1 can be a D-SUB connector or female socket, or HDMI, or Display Port, or eSATA, or RJ connector, or cable connector, or memory card socket (such as SD memory card socket), or smart card socket, or various electronic connectors or sockets.

Referring to fig. 68, a twelfth embodiment of the present invention is a bidirectional dual-sided USB TYPE-C2.0 electrical connector, which is substantially the same as the first variation and the fourth variation of the third embodiment, in which a fixing structure 140 is also embedded in the upper and lower surfaces of the metal partition 30, and the fixing structure 140 fills up the terminal groove 142 to fix each terminal.

Please refer to fig. 69, which is a thirteenth embodiment of the present invention, substantially the same as the twelfth embodiment, in which no metal partition is provided, the left and right sides of the metal shell 50 are integrally provided with inward protruding elastic buckles 56, and the plastic-molded fixing structure 140 can fill up two rows of terminal grooves 142 of the two insulation base bodies 10 to fix each terminal.

Referring to fig. 70, a fourteenth embodiment of the present invention is substantially the same as the first embodiment, and in this embodiment, a fixing structure 140 is also provided on the upper and lower surfaces of the metal partition 30 by plastic injection, and the fixing structure 140 fills the terminal groove 142 to fix each terminal.

In addition to the above, the connector plug of the embodiments of the present invention can also be disposed in and connected to various types of devices, such as a transfer line or an adapter or a transfer device or a mouse or a keyboard or a power supply or a mouse or an earphone and a housing and peripheral accessories, or a portable disk or a usb disk or a mobile hard disk or various storage devices or instruments or a mobile power supply or a charger or a wall plug charger or an expansion seat or an expansion device or a notebook computer or a tablet computer or a mobile phone or various projection devices or various wireless chargers or various wireless devices or a set-top box or a server or a desktop computer or various mobile portable electronic devices or a television or a game console or various electronic competition devices or various audio and video equipment or various earphones or microphones or a loudspeaker or various electronic lamp lighting devices or various electric fans or various electronic parts or various AR or VR electronic devices or various electronic devices Other suitable or applicable electronic equipment products.

In addition, the two-way double-sided connector of the present invention can also be used to prevent overvoltage, overload current, overheat and high temperature, short circuit and reverse current for circuit safety protection by using Schottky diodes, resistors, or thermistors, or capacitors, or magnetic beads, etc. due to the two contact interfaces, there are also various ways to arrange Schottky diodes to prevent short circuit, or resistors, or thermistors, or capacitors, or magnetic beads, etc. from overvoltage, overload current, overheat and high temperature, or reverse current, or to arrange electronic elements, or circuit safety protection elements, or safety circuits, so as to achieve the effect of circuit safety protection.

The specific embodiments set forth in the detailed description of the preferred embodiments are merely intended to illustrate the technical content of the present invention, and the present invention is not limited to the embodiments in a narrow sense, and various modifications can be made without departing from the spirit of the present invention and the scope of the following claims.

Claims

1. A bi-directional double-sided electrical connector comprising:

the two insulation seat bodies are integrally provided with a base part and a butt joint part, the butt joint part is connected to the front end of the base part, the butt joint part is provided with a bottom plate, the two insulation seat bodies are vertically overlapped, a connecting groove is formed between the bottom plates of the butt joint parts of the two insulation seat bodies, and the inner surfaces of the two insulation seat bodies are respectively provided with a row of terminal grooves extending forwards and backwards;

two rows of first terminals, which are formed by bending and stamping metal plates, wherein the two rows of first terminals are assembled into two rows of terminal grooves of the two insulating base bodies in the vertical direction, the terminals are integrally provided with a springing part, a fixed part and a pin from front to back, the front section of the springing part corresponds to the butt joint part and is provided with a contact part protruding from the bottom plate to the connecting groove, the springing part can bounce up and down in the direction perpendicular to the plate surface, the rear section of the springing part and the fixed part are horizontally abutted against the bottom surface of the terminal groove, the insulating base body is provided with a fixed structure for fixing the fixed parts of the two rows of first terminals, the rear sections of the springing parts of the two rows of first terminals can bounce up and down, the pin extends to the rear end of the base part and is exposed, and the contact parts of the two rows of first terminals are mutually reversely arranged;

a row of second terminals formed by blanking metal plates, wherein the second terminals are integrally provided with two elastic arms, a fixing part and a connecting pin, the two elastic arms are in a fish-fork shape, the two elastic arms are respectively provided with a contact part protruding towards the middle, the two contact parts are aligned up and down and form a space, the two elastic arms can be bounced up and down in a direction parallel to the plate surface, the row of second terminals are assembled into the two rows of terminal grooves of the two insulating base bodies, and the plate surfaces of the second terminals are vertical; and

a metal shell, which covers the two insulation base bodies and is provided with a four-side wrapped main shell body, the four-side wrapped main shell body covers the butt joint part of the two insulation base bodies, and the two insulation base bodies form a butt joint structure, the butt joint structure can be positioned on a butt joint connector in a positive and negative two-way mode, when the elastic parts of the two rows of first terminals are stressed to bounce, the elastic parts are provided with middle section fulcrums supported by the bottom surface of the terminal groove, so that the rear section of the elastic part behind the middle section fulcrums can be bent to bounce to form a gap between the bottom surface of the terminal groove of the base part and the rear section of the elastic part.

2. A duplex electrical connector as in claim 1 wherein the array of second terminals is four, two ground terminals and two power terminals.

3. The electrical connector according to claim 1 or 2, wherein the fixing structure of the insulative housing is formed by a secondary process after the row of first terminals is assembled.

4. A bi-directional double-sided electrical connector as claimed in claim 1 or 2, which may be one of the following a to c:

a. wherein the fixing structure is formed by sealing compound;

b. wherein the fixing structure is formed by hot melting;

c. the fixing structure is a clamping groove structure, and when the first terminal is placed into the terminal groove along the vertical direction and then moves in the front-back direction, the fixing part of the first terminal can be clamped by the clamping groove structure.

5. A bi-directional double-sided electrical connector comprising:

two rows of terminals, which are formed by bending and stamping metal sheets, are assembled into the two rows of terminal grooves of the two insulating base bodies in the up-down direction, the terminal is integrally provided with a spring part, a fixed part and a pin from front to back, the front section of the spring part corresponds to the butt joint part and is provided with a contact part protruding from the bottom plate to the connecting groove, the springing part can be bounced up and down along the direction vertical to the board surface, the rear section and the fixing part of the springing part are horizontally abutted against the bottom surface of the terminal groove, and the springing part has elastic overflow pressure towards the bottom surface of the terminal slot, so that the consistent height of each row of contact parts can be ensured when two rows of terminals are assembled in the terminal slot, the insulating base body is provided with a fixing part with a fixing structure for fixing the two rows of terminals, the rear sections of the elastic parts of the two rows of terminals can be elastically moved up and down, the pins extend to the rear end of the base part and are exposed, and the contact parts of the two rows of terminals are mutually reversely arranged by the same circuit; and

a metal shell, which covers the two insulation base bodies and is provided with a four-side wrapped main shell body, the four-side wrapped main shell body covers the butt joint part of the two insulation base bodies, and the two insulation base bodies form a butt joint structure, the butt joint structure can be positioned on a butt joint connector in a positive and negative two-way mode, when the elastic parts of the two rows of terminals are stressed to bounce, the elastic parts are provided with middle section fulcrums supported by the bottom surface of the terminal slot, so that the rear section of the elastic part behind the middle section fulcrums can be bent and bounced to form a gap between the bottom surface of the terminal slot of the base part and the rear section of the elastic part.

6. The electrical connector of claim 5, wherein the securing structure of the housing is formed by a secondary process after the row of terminals is assembled.

7. The bi-directional double-sided electrical connector of claim 5, which may be one of the following a to c:

a. wherein the fixing structure is formed by sealing compound;

b. wherein the fixing structure is formed by hot melting;

c. the fixing structure is a slot structure, and when the terminal is placed into the terminal slot along the up-down direction, the terminal is displaced along the front-back direction, so that the fixing part of the terminal can be clamped by the slot structure.

8. A bi-directional double-sided electrical connector comprising:

two rows of terminals, the two rows of terminals are formed by bending and stamping metal sheets, the two rows of terminals are assembled into two rows of terminal grooves of the two insulation seat bodies in the up-down direction, the terminals are integrally provided with a springing part, a fixed part and a pin from front to back, the front section of the springing part corresponds to the butt joint part and is provided with a contact part protruding out of the bottom plate to the connection groove, the springing part can bounce up and down in the direction vertical to the plate surface, the rear section of the springing part and the fixed part are horizontally abutted against the bottom surface of the terminal groove, the pin extends to the rear end of the base part to be exposed, and the contact parts of the two rows of terminals are reversely arranged by the same circuit;

the fixing structure is characterized in that an insulator is assembled between the two insulating seat bodies and abuts against and fixes the fixing parts of the two rows of terminals, and the rear sections of the elastic parts of the two rows of terminals can be elastically moved up and down; and

9. The two-way dual-sided electrical connector of claim 8, wherein a metal partition is disposed between the two insulative housing bodies, elastic fasteners are integrally connected to two sides of the metal partition and extend into two sides of the connecting slot, and the fixing structure is formed by plastic injection molding on the upper and lower surfaces of the metal partition.

10. The two-way dual-sided electrical connector as claimed in claim 9, wherein a metal partition is disposed between the two insulative housing bodies, the two sides of the metal partition are integrally connected to each other with elastic fasteners extending into the two sides of the connecting slots, the upper and lower surfaces of the metal partition are embedded with the fixing structure by plastic injection molding, the upper and lower surfaces of the fixing structure are respectively formed with a plurality of convex surfaces and a plurality of concave surfaces arranged at intervals, and the plurality of convex surfaces extend into the two rows of terminal slots to fix the fixing portions of the terminals.

11. The electrical connector of claim 1, 2, 5, 6,7, 8, 9 or 10, wherein the inner surfaces of the bases of the two insulative housings abut against each other; or wherein the butt joint part is provided with two side plates.

12. The electrical connector according to claim 5, 6,7, 8, 9, 10, wherein two outer sides of the two rows of terminals are respectively provided with a pair of ground terminals arranged in bilateral symmetry, a pair of power terminals arranged in bilateral symmetry is respectively arranged between the two rows of terminals, two pairs of ground terminals of the two rows of terminals are aligned up and down and two pairs of ground terminals of the two pairs of power terminals are aligned up and down, the pair of ground terminals of at least one of the two rows of terminals are integrally connected with a large U-shaped connecting piece, the pair of power terminals of at least one of the two rows of terminals are integrally connected with a small U-shaped connecting piece, the large U-shaped connecting piece is located at the periphery of the small U-shaped connecting piece and is in a large U-wrapped small U shape, wherein two contact portions of the upper and lower ground terminals are aligned up and down and two legs of the two ground terminals are close to each other, and wherein two contact portions of the upper and lower ground terminals are aligned up and down and two legs of the two power terminals are mutually aligned This reduces the number of pin wire bonds.

13. The bi-directional double-sided electrical connector of claim 12, wherein said large and small U-shaped connecting tabs each extend rearwardly around said leg of a middle one of said row of terminals.

14. The bi-directional electrical connector as recited in claim 13, wherein the large U-shaped connecting piece of the row of terminals and the horizontal leg of the row of terminals have a height difference, and the small U-shaped connecting piece of the row of terminals and the horizontal leg of the row of terminals have a height difference.

15. The electrical connector of claim 1, 2, 5, 6,7 or 8, wherein a metal partition is disposed between the two insulative housing bodies, and two sides of the metal partition are integrally connected to each other with resilient latches extending into two sides of the connecting slot.

16. The electrical connector of claim 1, 2, 5, 6,7, 8, 9, or 10, wherein at least one grounding member is disposed between the two insulative housing bodies and the outer metal shell, a front section of the bottom plate has a front section and a rear section has a rear section, the rear section protrudes a height higher than the front section, two rows of contact portions protrude the rear section, and the grounding member is connected to at least one spring piece protruding the front section and extending into the connecting slot.

17. The electrical connector of claim 1, 2, 5, 6,7, 8, 9, or 10, wherein each of the two insulative housings has a row of partitions therein to form a row of terminal slots extending forward and backward, the terminal slots extending from the base to the mating portion.

18. The electrical connector of claim 1, 2, 5, 6,7, 8, 9, 10, wherein the depth of the terminal groove is greater than the thickness of the first terminal material, so that a portion of the spring portion and the fixing portion are recessed into the terminal groove.

19. The electrical connector according to claim 1, 2, 5, 6,7, 8, 9 or 10, wherein the two insulative housing bodies are connected to each other by a connecting bridge, such that the two insulative housing bodies are formed by plastic injection molding.

20. The two-way two-sided electrical connector of claim 19, wherein the connecting bridge is a plastic bridge, and the plastic bridge and the two insulative housing bodies are integrally injection molded of plastic.

21. The electrical connector of claim 1, 2, 5, 6,7, 8, 9 or 10, wherein a cut is formed at a position where one side of the two insulative housing bodies are overlapped.

22. A bi-directional double-sided electrical connector as recited in claim 1, 2, 8, 9 or 10 wherein each of said resilient portions has a resilient bias against the bottom surface of the terminal groove, thereby ensuring a consistent height of each row of contact portions.