CN104538773A - Reversible power plug connector - Google Patents

Abstract

The invention discloses a power plug connector capable of being plugged positively and negatively, which comprises an insulating body, a soft tongue plate, a first terminal, a second terminal and a shielding shell, wherein the soft tongue plate is arranged on the insulating body; through being fixed in insulator with soft tongue board on, the front end of soft tongue board is hung and is located in the slot, the mode of traditional integrated into one piece's setting on insulator has been replaced, and the cooperation is provided with a plurality of first terminals and a plurality of second terminal respectively on the upper and lower surface of soft tongue board, utilize the tail end of each second terminal respectively with the tail end turn-on connection of the first terminal that corresponds, when just inserting, this product can insert smoothly with ordinary plug connector the same, a plurality of first terminals switch on with the contact of power socket connector, and when reverse plug, soft tongue board can take place the bending and make this product can continue to insert and put in place, a plurality of second terminals can switch on with the contact of power socket connector, so can realize the positive and negative plug of product, thereby give people's daily use facility, and can not lead to the wearing and tearing and the damage of connector.

Description

Reversible power plug connector

technical field

The invention relates to the technology in the field of connectors, in particular to a reversible plug-in power plug connector.

Background technique

The power plug connector and the power socket connector are two connectors that are mated with each other to complete power transmission or data transmission. The power plug connector is widely used on mobile phone data lines to charge mobile phones or export and import data. .

The tongue plate of the current standard power socket connector is a plastic body integrally formed on the insulating body, the distance between the upper surface of the tongue plate and the upper inner wall of the shielding shell and the distance between the lower surface of the tongue plate and the lower inner wall of the shielding shell are not the same. However, the tongue plate of the current power plug connector also extends integrally from the insulating body, and the tongue plate of the power plug connector is a hard plastic plate. Therefore, when the current power plug connector and the power socket connector are mated Only positive insertion can be used. If it is reversed, the power plug connector will not be able to be inserted, which will bring inconvenience to people's daily use, and it will also easily cause wear and tear on the connector during multiple reverse insertions.

Therefore, a new technical solution needs to be developed to solve the above problems.

Contents of the invention

In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a power plug connector that can be plugged back and forth, which can effectively solve the inconvenience of using the existing power plug connector that cannot be inserted backwards and is easy Problems with damaged connectors.

To achieve the above object, the present invention adopts the following technical solutions:

A reversible power plug connector, including

An insulating body, the front end of which is provided with a slot;

A soft tongue plate, the rear end of which is fixed on the insulating body, and the front end of the soft tongue plate is suspended in the slot;

A plurality of first terminals, the plurality of first terminals are arranged side by side and spaced apart on the insulating body, and the first contact parts of the plurality of first terminals are all located on the surface of the soft tongue;

A plurality of second terminals, the plurality of second terminals are arranged side by side on the insulating body at intervals, the second contact parts of the plurality of second terminals are on the bottom surface of the soft tongue plate, the arrangement direction of the plurality of second terminals is consistent The arrangement directions of the two first terminals are opposite, and the tail ends of the second terminals are electrically connected to the tail ends of the corresponding first terminals;

a shielding shell, the shielding shell covers the insulating body;

In the positively inserted state, the first contact portions of the plurality of first terminals are electrically connected to the terminals of the external socket connector; The front ends of the two terminals are bent downward to be displaced, and the second contact portions of the plurality of second terminals are electrically connected to the terminals of the external socket connector.

As a preferred solution, the tail end of the first terminal is integrally bent and extended to have an abutment portion, and the abutment portion of each first terminal presses against the tail end of the corresponding second terminal to conduct a conductive connection. A welding portion extends backward from the tail end of the second terminal, and the welding portion is exposed on the insulating body.

As a preferred solution, the insulating body includes a lower insulating part and an upper insulating part, the upper insulating part is installed on the lower insulating part, the aforementioned plurality of first terminals are embedded and fixed together with the upper insulating part, and the aforementioned plurality of The second terminal is fixed together with the lower insulating part through insert molding.

As a preferred solution, an embedding groove is recessed on the rear end surface of the lower insulator, and the upper insulator is embedded in the embedding groove and fixed.

As a preferred solution, the front end side edge of the embedding groove is protruded with a clamping post, correspondingly the rear end of the soft tongue is provided with a first clamping slot, and the front end of the upper insulating part is provided with a second clamping slot, The clamping column is clamped in the first clamping slot and the second clamping slot, and the rear end of the soft tongue is clamped between the upper insulating part and the lower insulating part.

As a preferred solution, a buckle groove is provided at the tail end of the embedding groove, and a buckle portion protrudes outward correspondingly on the rear end side of the upper insulating member, and the buckle portion and the buckle groove are fastened and fixed to each other.

As a preferred solution, the tail ends of the second terminals are conductively connected to the tail ends of the corresponding first terminals respectively through the printed circuit board.

As a preferred solution, the printed circuit board is arranged at the tail end of the insulating body, and a plurality of first circuits are printed on the surface of the printed circuit board, and the plurality of first terminals are electrically contacted with the corresponding first circuits respectively. connection, the bottom surface of the printed circuit board is printed with a plurality of second lines, the aforementioned plurality of second terminals are respectively contacted and electrically connected with the corresponding second lines, and the circuit board is provided with a plurality of conduction holes, and the plurality of conduction The through holes are conductively connected between the corresponding first lines and the corresponding second lines respectively.

As a preferred solution, the insulator body includes a first insulator and a second insulator, the first insulator and the second insulator are both L-shaped, and the aforementioned plurality of first terminals are embedded with the first insulator fixed together, the aforementioned plurality of second terminals are embedded and fixed together with the second insulator, the first insulator and the second insulator are opposite to each other and stacked up and down together; further comprising a rear shield shell, the rear shield The shell wraps the rear end of the insulating body and the printed circuit board. The rear shielding shell includes an upper half shell and a lower half shell. The upper shell and the lower shell have the same structure, and the upper half shell and the lower half shell are buckled and connected to each other. fixed together.

As a preferred solution, the first insulating member is provided with a first positioning post and a first positioning hole, the second insulating member is provided with a second positioning post and a second positioning hole, and the second positioning post is inserted into the first positioning hole. In a positioning hole, the first positioning column is inserted into the second positioning hole; and, the first insulator is provided with a first buckle and a first buckle groove, and the second insulator is provided with a second buckle and a first buckle. Two buckle slots, the first buckle part is buckled and connected to the second buckle slot, and the second buckle part is buckled and connected to the first buckle slot.

Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be known from the above technical solutions:

1. By fixing the soft tongue plate on the insulating body, the front end of the soft tongue plate is suspended in the slot, replacing the traditional way of integrally forming on the insulating body, and matching the upper and lower surfaces of the soft tongue plate respectively There are a plurality of first terminals and a plurality of second terminals, and the tail ends of each second terminal are respectively connected to the tail ends of the corresponding first terminals. When plugging in, this product can be used without It hinders the smooth insertion, and the multiple first terminals are in contact with the power socket connector. When it is reversed, the soft tongue will bend so that the product can continue to be inserted in place, and the multiple second terminals can be connected to the power socket. The connectors are in contact with each other, so that the product can be plugged in forward and backward, which is convenient for people's daily use, and will not cause wear and damage to the connector.

2. By mosaicing and fixing a plurality of first terminals with the upper insulator, coordinating with a plurality of second terminals and inlaying and fixing the lower insulator, and cooperating with the upper insulator and installing it on the lower insulator, the product structure Simple and firm, and easy to assemble.

3. By providing a printed circuit board on the insulating body, the tail end of each second terminal is connected to the tail end of the corresponding first terminal by using the printed circuit board, so that the first terminal and the second terminal can be greatly simplified The structure makes the production and production of the product easier, which is conducive to improving production efficiency, and also ensures the reliability and stability of the line connection.

In order to more clearly illustrate the structural features and functions of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the perspective view of the assembly of the first preferred embodiment of the present invention;

Fig. 2 is a schematic perspective view of assembly from another angle of the first preferred embodiment of the present invention;

Fig. 3 is the exploded view of the first preferred embodiment of the present invention;

Fig. 4 is an exploded view of another angle of the first preferred embodiment of the present invention;

Fig. 5 is the enlarged schematic view of the first terminal and the second terminal in the first preferred embodiment of the present invention;

Figure 6 is an enlarged schematic view of the first terminal in the first preferred embodiment of the present invention;

Fig. 7 is a perspective view of the use state of the first preferred embodiment of the present invention;

Fig. 8 is a schematic cross-sectional view of the first preferred embodiment of the present invention in an uninserted state during reverse insertion;

Fig. 9 is a schematic cross-sectional view of the first preferred embodiment of the present invention when it is inserted in place when it is reversely inserted;

Fig. 10 is a schematic perspective view of assembly of a second preferred embodiment of the present invention;

Figure 11 is an exploded view of a second preferred embodiment of the present invention;

Fig. 12 is a perspective view of the use state of the second preferred embodiment of the present invention;

Fig. 13 is an assembled perspective view of a third preferred embodiment of the present invention;

Fig. 14 is an exploded view of a third preferred embodiment of the present invention;

Fig. 15 is an exploded view of another angle of the third preferred embodiment of the present invention;

16 is an enlarged schematic view of the first insulating member in the third preferred embodiment of the present invention;

Fig. 17 is the enlarged schematic view of the second insulator in the third preferred embodiment of the present invention;

Fig. 18 is an assembled perspective view of a fourth preferred embodiment of the present invention;

Fig. 19 is an exploded view of a fourth preferred embodiment of the present invention;

Fig. 20 is an exploded view from another angle of the fourth preferred embodiment of the present invention.

Explanation of the accompanying drawings:

10. Insulation body 11. Lower insulating part

12. Upper insulator 13. First insulator

131. The first positioning post 132. The first positioning hole

133. The first buckle part 134. The first buckle slot

14. The second insulating part 141. The second positioning post

142. The second positioning hole 143. The second buckle

144. Second buckle slot 101. Slot

102. Buckle 103. Embedded groove

104. Card post 105. Second card slot

106. Buckle slot 107. Buckle

108. Groove 20. Soft tongue plate

21. The first card slot 30. The first terminal

31. First contact part 32. Contact part

40. The second terminal 41. The second contact part

42. Welding part 50. Shielding shell

51. Buttonhole 60. Socket connector

70. Printed circuit board 71. First line

72. Second line 73. Via hole

80. Rear shielding shell 81. Upper half shell

82. Lower half shell.

detailed description

Please refer to Fig. 1 to Fig. 9, which shows the specific structure of the first preferred embodiment of the present invention, including an insulating body 10, a soft tongue plate 20, a plurality of first terminals 30, a plurality of second Terminal 40 and a shielding shell 50 .

The front end of the insulating body 10 is provided with a slot 101 for inserting a tongue plate of an external socket. The rear end of the soft tongue 20 is fixed on the insulating body 10 , and the front end of the soft tongue 20 is suspended in the slot 101 .

The plurality of first terminals 30 are arranged side by side and spaced apart on the insulating body 10 , and the first contact portions 31 of the plurality of first terminals 30 are all located on the surface of the soft tongue 20 .

The plurality of second terminals 40 are arranged side by side on the insulating body 10 at intervals. The second contact portions 41 of the plurality of second terminals 40 are on the bottom surface of the soft tongue 20. The arrangement direction of the plurality of second terminals 40 is consistent with the plurality of The arrangement directions of the two first terminals 30 are opposite, and the tail ends of each second terminal 40 are respectively electrically connected to the tail ends of the corresponding first terminals 30, that is, the tail end of the leftmost second terminal 40 is connected to the rightmost The tail end of the first terminal 30 on the side is electrically connected, the tail end of the second second terminal 40 on the left is electrically connected to the tail end of the second first terminal 30 on the right, and so on.

The shielding shell 50 covers the insulating body 10. In this embodiment, the insulating body 10 is protruded with a buckle 102. Correspondingly, the shielding shell 50 is provided with a button hole 51. The front end of the insulating body 10 is connected from the shielding shell 50 is inserted into the rear end opening, and the buckle portion 102 and the buckle hole 51 are buckled and connected to each other.

Specifically, in this embodiment, as shown in FIG. 5 and FIG. 6 , the tail end of the first terminal 30 is integrally bent and extended to form an abutment portion 32 , and the abutment portion 32 of each first terminal 30 presses against Conductive connection is conducted on the tail end of the corresponding second terminal 40, and the tail end of the second terminal 40 extends backward with a welding portion 42, which is used for welding and electrical connection with an external cable, and the welding portion 42 exposed to the insulating body 10 .

And, as shown in FIG. 3 and FIG. 4, the insulating body 10 includes a lower insulating member 11 and an upper insulating member 12, the upper insulating member 12 is installed on the lower insulating member 11, and the aforementioned plurality of first terminals 30 are insulated from the upper insulating member. The parts 12 are embedded and fixed together, and the aforementioned plurality of second terminals 40 are fixed together with the lower insulating part 11; and the rear end surface of the lower insulating part 11 is concavely provided with an embedding groove 103, and the upper insulating part 12 It is embedded in the embedding groove 103 and fixed; in addition, the front side edge of the embedding groove 103 is protruded with a post 104, and correspondingly the rear end of the soft tongue 20 is provided with a first engaging groove 21, and the upper insulator 12 The front end of the front end is provided with a second clamping slot 105, and the clamping post 104 is clamped in the first clamping slot 21 and the second clamping slot 105, so as to prevent the soft tongue plate 20 and the upper insulator 12 from moving back and forth, and the soft tongue plate 20 The rear end is clamped between the upper insulator 12 and the lower insulator 11; and, the rear end of the embedding groove 103 is provided with a buckle groove 106, and correspondingly, the rear end of the upper insulator 12 is provided with a buckle protruding outward. part 107, the buckle part 107 and the buckle groove 106 are fastened and fixed to each other; in addition, a groove 108 is recessed on the inner bottom surface of the accommodating groove 103, and the rear end of the second terminal 40 is partially exposed in the groove 108. The connecting portion 32 abuts against the groove 108 and is in contact with the second terminal 40 for conducting connection.

In addition, both sides of the front end of the insulating body 10 are vertical surfaces, and correspondingly, both sides of the shielding shell 50 are also vertical surfaces, so as to match with the structure of the external standard socket connector.

The assembly process of this embodiment is described in detail as follows:

When assembling, firstly, a plurality of first terminals 30 and a plurality of second terminals 40 are formed by stamping; then, a plurality of first terminals 30 are fixed together with the upper insulating member 12 by insert molding, and a plurality of second terminals are fixed together. The terminal 40 and the lower insulator 11 are embedded and fixed together; then, the rear end of the soft tongue plate 20 is embedded in the embedding groove 103, and the front end of the soft tongue plate 20 is suspended in the slot 101; then, the upper insulator 12 is embedded in the embedding groove 103, at this time, the abutting portion 32 of each first terminal 30 can be pressed against the tail end of the corresponding second terminal 40 to conduct a conductive connection; finally, the assembled insulation The main body 10 is inserted into place from the rear end of the shielding shell 50 so that the buckle 102 and the buckle hole 51 are buckled and connected to each other, and the assembly is completed.

In this embodiment, the receptacle connector 60 is a type A micro USB2.0 receptacle connector, and correspondingly the plug connector of the present invention is also a type A. It can be smoothly inserted into the external socket connector 60, and the plurality of first terminals 30 are in contact with each terminal in the socket connector 60; The height is slightly lower than the horizontal height of the tongue plate of the socket connector 60. As shown in FIG. At this time, the plurality of second terminals 40 are in contact with each terminal in the receptacle connector 60 , and when the present invention is pulled out, the soft tongue 20 immediately restores its deformation.

Please refer to Fig. 10 and shown in Fig. 12, it shows the specific structure of the second preferred embodiment of the present invention, the specific structure of this embodiment is basically the same as the specific structure of the aforementioned first preferred embodiment, its difference is:

In this embodiment, the plug connector of the present invention is a B type, and the socket connector 60 mated with it is a B type micro USB2.0 socket connector, and the left and right sides of the front end of the insulating body 10 are triangular prisms Correspondingly, the left and right sides of the shielding shell 50 are also triangular prism structures, so as to match with the structure of another external standard socket connector.

The assembling method and using method of this embodiment are the same as the assembling method and using method in the aforementioned first preferred embodiment, and the assembling method and using method in this embodiment will not be described in detail here.

Please refer to Fig. 13 to Fig. 17, which shows the specific structure of the third preferred embodiment of the present invention, the specific structure of this embodiment is basically the same as that of the aforementioned first preferred embodiment, the difference is:

In this embodiment, the tail end of each second terminal 40 is conductively connected to the tail end of the corresponding first terminal 30 through the printed circuit board 70 . Specifically, in this embodiment, the printed circuit board 70 is arranged at the tail end of the insulating body 10, and a plurality of first circuits 71 are printed and formed on the surface of the printed circuit board 70, and the aforementioned plurality of first terminals 30 are respectively It is electrically connected with the corresponding first circuit 71, and the bottom surface of the printed circuit board 70 is printed with a plurality of second circuits 72, and the aforementioned plurality of second terminals 40 are respectively contacted and electrically connected with the corresponding second circuit 72, and the circuit board 70 is provided with a plurality of via holes 73 , and the plurality of via holes 73 are conductively connected between the corresponding first lines 71 and the corresponding second lines 72 .

Moreover, the insulating body 10 includes a first insulating member 13 and a second insulating member 14, the first insulating member 13 and the second insulating member 14 are both L-shaped, and the plurality of first terminals 30 and the first insulating member 13 The insert molding is fixed together, the aforementioned multiple second terminals 40 are insert-molded and fixed together with the second insulating member 14 , the first insulating member 13 and the second insulating member 14 are opposite to each other and stacked together up and down.

Specifically, the first insulating member 13 is provided with a first positioning post 131 and a first positioning hole 132, and the second insulating member 14 is provided with a second positioning post 141 and a second positioning hole 142. The second positioning The post 141 is inserted into the first positioning hole 132, and the first positioning post 131 is inserted into the second positioning hole 142; and, the first insulator 13 is provided with a first buckle 133 and a first buckle groove 134, and the second insulator The piece 14 is provided with a second buckle portion 143 and a second buckle groove 144, the first buckle portion 133 is buckled and connected with the second buckle groove 144, and the second buckle portion 143 is buckled and connected with the first buckle groove 134 and fixed , so that the first insulating member 13 and the second insulating member 14 are assembled together to form the insulating body 10 .

In addition, a rear shielding shell 80 is further included, the rear shielding shell 80 wraps the rear end of the insulating body 10 and the printed circuit board 70, the rear shielding shell 80 includes an upper half shell 81 and a lower half shell 82, the upper half shell 81 and the lower half-shell 82 are snap-fitted and fixed together, and the structure of the upper shell 81 and the lower shell 82 is the same, so taking the two shells can realize buckling and reduce the mold cost.

The assembly process of this embodiment is described in detail as follows:

When assembling, firstly, a plurality of first terminals 30 and a plurality of second terminals 40 are formed by stamping; then, the plurality of first terminals 30 are fixed together with the first insulating member 13 by insert molding, and the plurality of first terminals 30 are fixed together. The two terminals 40 and the second insulating part 14 are embedded and fixed together; then, the first insulating part 13 and the second insulating part 14 are assembled together to form the insulating body 10, and the printed circuit board 70 is sandwiched between the first insulating part 13 and the rear end of the second insulator 14, at this time, the tail end of each first terminal 30 is electrically connected to the corresponding first circuit 71, and the tail end of each second terminal 40 is connected to the corresponding first circuit 71. The two lines 72 are electrically connected, and the tail end of the first terminal 30 is welded and fixed to the corresponding first line 71 by welding, and the tail end of the second terminal 40 is welded and fixed to the corresponding second line 72; then, finally Insert the assembled insulating body 10 into place from the rear end opening of the shielding shell 50, so that the buckle 102 and the buckle hole 51 are buckled and connected to each other, and the upper half shell 81 and the lower half shell 82 are buckled and connected to each other to wrap The rear end of the insulating body 10 and the printed circuit board 70 can be assembled.

The usage method of this embodiment is the same as that of the aforementioned first preferred embodiment, and the usage method of this embodiment will not be described in detail here.

Please refer to Fig. 18 to Fig. 20, which shows the specific structure of the fourth preferred embodiment of the present invention, the specific structure of this embodiment is basically the same as that of the aforementioned third preferred embodiment, the difference is:

In this embodiment, the plug connector of the present invention is a B type, and the socket connector 60 mated with it is a B type micro USB2.0 socket connector, and the left and right sides of the front end of the insulating body 10 are triangular prisms Correspondingly, the left and right sides of the shielding shell 50 are also triangular prism structures, so as to match with the structure of the external standard socket connector.

The assembling method and using method of this embodiment are the same as the assembling method and using method in the aforementioned third preferred embodiment, and the assembling method and using method in this embodiment will not be described in detail here.

The key points of the design of the present invention are as follows: firstly, by fixing the soft tongue plate on the insulating body, the front end of the soft tongue plate is suspended in the slot, which replaces the traditional method of setting integrally formed on the insulating body, and cooperates with the The upper and lower surfaces of the soft tongue plate are respectively provided with a plurality of first terminals and a plurality of second terminals. The tail ends of each second terminal are respectively connected to the tail ends of the corresponding first terminals. Ordinary plug connectors can be inserted smoothly without hindrance, and multiple first terminals are in contact with the power socket connector. When inserted backwards, the soft tongue will bend so that the product can continue to be inserted in place. The two terminals can be in contact with the power socket connector, so that the product can be plugged in forward and backward, so that it is convenient for people's daily use, and will not cause wear and damage to the connector. Secondly, by inserting and fixing a plurality of first terminals and the upper insulating part together, cooperating with a plurality of second terminals and inserting and fixing the lower insulating part together, and fitting the upper insulating part on the lower insulating part, the product structure Simple and firm, and easy to assemble. Furthermore, by providing a printed circuit board on the insulating body, the tail ends of each second terminal are respectively conductively connected with the tail ends of the corresponding first terminals by using the printed circuit board, so that the connection between the first terminal and the second terminal can be greatly simplified. The structure of the terminal makes the production and manufacture of the product easier, helps to improve the production efficiency, and also ensures the reliability and stability of the line connection.

The above descriptions are only preferred embodiments of the present invention, and do not limit the technical scope of the present invention in any way, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are still valid. It belongs to the scope of the technical solutions of the present invention.

Claims (10)

1. A reversible power plug connector, characterized in that it includes: An insulating body, the front end of which is provided with a slot; A soft tongue plate, the rear end of which is fixed on the insulating body, and the front end of the soft tongue plate is suspended in the slot; A plurality of first terminals, the plurality of first terminals are arranged side by side and spaced apart on the insulating body, and the first contact parts of the plurality of first terminals are all located on the surface of the soft tongue; A plurality of second terminals, the plurality of second terminals are arranged side by side on the insulating body at intervals, the second contact parts of the plurality of second terminals are on the bottom surface of the soft tongue plate, the arrangement direction of the plurality of second terminals is consistent The arrangement directions of the two first terminals are opposite, and the tail ends of the second terminals are electrically connected to the tail ends of the corresponding first terminals; a shielding shell, the shielding shell covers the insulating body; In the positively inserted state, the first contact portions of the plurality of first terminals are electrically connected to the terminals of the external socket connector; The front ends of the two terminals are bent downward to be displaced, and the second contact portions of the plurality of second terminals are electrically connected to the terminals of the external socket connector. 2. The reversible power plug connector according to claim 1, characterized in that: the tail end of the first terminal is integrally bent and extended to have an abutment portion, and the abutment portion of each first terminal abuts against Pressing on the tail end of the corresponding second terminal to make conduction connection, the tail end of the second terminal extends backward with a welding portion, and the welding portion is exposed on the insulating body. 3. The reversible power plug connector according to claim 1, characterized in that: the insulating body includes a lower insulating part and an upper insulating part, the upper insulating part is installed on the lower insulating part, and the aforementioned multiple A first terminal is embedded and fixed with the upper insulating part, and the aforementioned multiple second terminals are fixed with the lower insulating part through insert molding. 4. The reversible power plug connector according to claim 3, characterized in that: the rear end surface of the lower insulator is concavely provided with an embedding groove, and the upper insulator is embedded in the embedding groove and fixed . 5. The reversible plug-in power plug connector according to claim 4, characterized in that: the front side edge of the embedding groove is protruded with a post, and correspondingly the rear end of the soft tongue is provided with a second A card slot, the front end of the upper insulator is provided with a second card slot, the post is locked in the first card slot and the second card slot, and the rear end of the soft tongue is clamped to the upper insulator and the lower insulator between. 6. The reversible plug-in power plug connector according to claim 5, characterized in that: the tail end of the embedding groove is provided with a buckle groove, and correspondingly the rear end side of the upper insulator is protruding outward. There is a buckle part, and the buckle part and the buckle groove are fastened and fixed to each other. 7 . The reversible plug-in power plug connector according to claim 1 , wherein the tail ends of the second terminals are conductively connected to the tail ends of the corresponding first terminals through a printed circuit board. 8 . 8. The reversible power plug connector according to claim 7, wherein the printed circuit board is arranged at the tail end of the insulating body, and a plurality of first printed circuit boards are printed on the surface of the printed circuit board. Circuits, the plurality of first terminals are electrically connected to the corresponding first circuits, the bottom surface of the printed circuit board is printed with a plurality of second circuits, and the plurality of second terminals are electrically connected to the corresponding second circuits. And the circuit board is provided with a plurality of via holes, and the plurality of via holes are respectively conductively connected between the corresponding first circuit and the corresponding second circuit. 9. The reversible power plug connector according to claim 1, characterized in that: the insulating body includes a first insulating part and a second insulating part, and the first insulating part and the second insulating part are both It is L-shaped, the aforementioned plurality of first terminals are embedded and fixed together with the first insulating member, and the aforementioned plurality of second terminals are embedded and fixed with the second insulating member, and the first insulating member and the second insulating member are opposite to each other And stacked together up and down; further includes a rear shielding shell, the rear shielding shell wraps the rear end of the insulating body and the printed circuit board, the rear shielding shell includes an upper half shell and a lower half shell, an upper shell and a lower shell The structure of the body is the same, and the upper half shell and the lower half shell are fastened and fixed to each other. 10. The reversible plug-in power plug connector according to claim 1, characterized in that: the first insulator is provided with a first positioning post and a first positioning hole, and the second insulator is provided with a The second positioning post and the second positioning hole, the second positioning post is inserted into the first positioning hole, the first positioning post is inserted into the second positioning hole; and the first insulator is provided with a first buckle and a first A buckle groove, the second insulator is provided with a second buckle portion and a second buckle groove, the first buckle portion is fastened and connected to the second buckle groove, and the second buckle portion is fastened and connected to the first buckle groove .