CN204516956U - A kind of USB socket that can be plugged in forward and reverse directions - Google Patents

Abstract

The utility model relates to the technical field of connectors, in particular to a USB socket capable of being oppositely inserted in the positive and negative directions, which comprises a metal shell, an insulating body and conductive terminals, wherein a ferrule extends out of the front end of the insulating body, the upper end surface and the lower end surface of the ferrule are respectively provided with a row of conductive terminals, the conductive terminals on the upper end surface of the ferrule are respectively and sequentially connected with the conductive terminals on the lower end surface of the ferrule in a one-to-one correspondence manner from left to right in sequence, the two surfaces of the ferrule can be electrically connected, so that a plug can be effectively and electrically connected when being inserted into the socket from any direction, the use is convenient, the phenomenon of wrong direction insertion can not occur, the plug and the socket are effectively protected, the connection is simple and convenient; and the connecting structure of the USB socket and the circuit board is not changed, and the USB socket can be directly installed on a standard circuit board so as to directly replace the traditional one-way USB socket.

Description

A kind of USB socket that can be plugged in forward and reverse directions

Technical field:

The utility model relates to the technical field of electric connectors, in particular to a USB socket which can be plugged in opposite directions.

Background technique:

USB (Universal Serial BUS, Universal Serial Bus) is an external bus standard used to regulate the connection and communication between computers and external devices, and is an interface technology applied in the PC field. The USB interface supports the plug-and-play and hot-swap functions of the device. Among the peripheral interfaces used for data transmission and data exchange today, the universal serial bus interface (USB) is undoubtedly one of the most widely used interfaces in the field of computers and peripheral electronic consumer products. Most of the computer peripherals are connected to the computer via USB for data transmission and exchange, such as mouse, keyboard, U disk, printer, mobile phone, camera and so on. Then it is necessary to install a USB socket on the computer, and install a plug on the external equipment around the computer. When connecting, the plug is inserted into the socket to make the two electrically connected. At present, the micro universal serial bus (MICRO USB) interface connector has been widely used in the connector interfaces of mobile phones, tablet computers and other portable mobile devices for transmission communication, charging and power supply.

Since the electrical connection points of the plug and socket itself are designed to correspond one-to-one, wrong insertion will cause major dangers such as invalidity or even burning out the equipment. In order to prevent people from plugging in wrongly when using the USB interface, the USB interface has a fool-proof design, that is, the plug and socket will need to be aligned in the direction because of their single-sided insertion characteristics, which requires a lot of waste. Time for inspection and proofreading. In this way, when users use it, they often need to check which direction the socket is in, and then adjust the plug to the same direction before inserting it, or if it is not inserted correctly, change the direction and then insert it. A broken plug or socket is causing a lot of trouble.

Utility model content:

The purpose of the utility model is to provide a USB socket which can be plugged in the front and back sides of the USB plug arbitrarily and has a simple manufacturing process in view of the shortcomings of the prior art.

In order to achieve the above object, the technical solution adopted by the utility model is:

A USB socket that can be plugged in the front and back directions includes a metal shell, an insulating body arranged in the metal shell, and a conductive terminal. The front end of the insulating body protrudes from a ferrule, and the upper and lower ends of the ferrule are respectively provided with a A row of conductive terminals, the conductive terminals are embedded inside the insulating body, the insulating body is integrated with the conductive terminals through integral injection molding, and each conductive terminal is formed with a contact shrapnel extending out of the ferrule, which is located on the upper end of the ferrule The contact shrapnel of the conductive terminal of the ferrule is arched upwards, and the contact shrapnel of the conductive terminal located on the lower end surface of the ferrule is arched downward. Connect in a one-to-one correspondence from right to left; wherein, each conductive terminal has a conductive contact portion extending inward, and the conductive contact portion of each conductive terminal extends to the position of the conductive contact portion of the corresponding conductive terminal and mutually The press-fit contact conducts to form a contact point.

There are 4 conductive terminals in each row on the upper and lower ends of the ferrule, and the first, second, third, and fourth conductive terminals on the upper end of the ferrule from left to right are connected with the lower end surface of the ferrule in turn. From right to left, the first, second, third, and fourth conductive terminals are connected in one-to-one correspondence.

The insulating body is a saturated thermosetting high temperature resistant plastic material.

The conductive contact part of each conductive terminal is located inside the front end of the ferrule, and a press-fit hole is opened on the ferrule, and each contact point is located in the press-fit hole.

The conductive contact portion of each conductive terminal and the conductive contact portion of the corresponding conductive terminal are respectively arranged in the vertical direction and are tightly pressed and fixed to each other. terminal pins.

The contact spring is provided with a convex hull outwardly.

The rear end of the metal shell is integrally formed with an elastic hook.

The conductive contact parts of the corresponding two conductive terminals are fixedly connected by welding.

The beneficial effect of the utility model is that: a USB socket of the utility model that can be plugged in opposite directions includes a metal shell, an insulating body, and a conductive terminal. Each end face is provided with a row of conductive terminals, and each conductive terminal is formed with a contact spring. The conductive terminals on the upper end face of the ferrule are in order from left to right and the conductive terminals on the lower end face of the ferrule are in order from right to left. One-to-one corresponding connection, both sides of the ferrule of the utility model can be electrically connected, so that the plug can be effectively electrically connected when inserted into the socket from either front or back, easy to use, and there will be no phenomenon of wrong direction insertion, which can effectively protect the plug and the socket, the connection is simple and convenient, durable, and the operation efficiency is improved; wherein, each conductive terminal has a conductive contact portion extending inward, and the conductive contact portion of each conductive terminal extends to the position of the conductive contact portion of the corresponding conductive terminal respectively. Contact points are formed by strong mutual pressing and contact conduction. During production and manufacturing, each conductive terminal is placed in the cavity of the molding mold of the insulating body in turn, positioned by the mold, and the corresponding conductive contact part is pressed at each contact point position. Then pour high-temperature plastic into the mold cavity to form and fix, not only make the two rows of conductive terminals tightly bonded and fixed, the combination is stable and reliable, but also form plastic structures such as insulating body and ferrule, with simple structure and manufacturing process , improve production efficiency, realize mass production, save costs, and do not change the connection structure between the USB socket and the circuit board, and can be directly installed on a standard circuit board to directly replace the traditional one-way USB socket.

Description of drawings:

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the front view of the utility model.

Fig. 3 is a structural schematic diagram of the utility model with the metal shell hidden.

Fig. 4 is a schematic structural view of the conductive terminal of the present invention.

Fig. 5 is a schematic diagram of the structure of the conductive terminal of the present invention before being combined with the insulating body.

Detailed ways:

The utility model will be further described below in conjunction with the accompanying drawings. As shown in FIGS. The insulating body 2 and the conductive terminal 3 have a ferrule 21 protruding from the front end of the insulating body 2, and a row of conductive terminals 3 are respectively arranged on the upper and lower ends of the ferrule 21. The conductive terminals 3 are embedded in the insulating body 2, and each The conductive terminals 3 are respectively formed with contact springs 33 extending out of the ferrule 21. The contact springs 33 of the conductive terminals 3 located on the upper end surface of the ferrule 21 arch upwards, and the contact springs 33 of the conductive terminals 3 located on the lower end surface of the ferrule 21 Arched downwards, the conductive terminals 3 on the upper end surface of the ferrule 21 are respectively connected with the conductive terminals 3 on the lower end surface of the ferrule 21 in the order from right to left in the order from left to right. Both sides of the core 21 can be electrically connected, so that the plug can be effectively connected electrically when inserted into the socket from any direction, which is convenient to use, and there will be no phenomenon of wrong direction insertion, effectively protecting the plug and socket, and the connection is simple, convenient, and durable. Improve operational efficiency.

Wherein, each conductive terminal 3 has a conductive contact portion 32 extending inward, and the conductive contact portion 32 of each conductive terminal 3 respectively extends to the position of the conductive contact portion 32 of the corresponding conductive terminal 3 and is pressed together to form a conductive contact. Contact point, when manufacturing, put each conductive terminal 3 into the cavity of the molding mold of the insulating body 2 in turn, position through the mold, and press the corresponding conductive contact part 32 at each contact point position, and then pour it into the high temperature The plastic is formed and fixed in the mold cavity, which not only makes the two rows of conductive terminals 3 tightly bonded and fixed, and the bond is stable and reliable, but also forms plastic structures such as the insulating body 2 and the ferrule 21, which has a simple structure and manufacturing process and improves production. Efficiency, mass production can be achieved, cost saving, and the connection structure between the USB socket and the circuit board has not been changed, and the USB socket can be directly assembled into the electronic device without replacing or redesigning the circuit board, and can be directly installed into the standard circuit The board can thus directly replace the traditional unidirectional USB socket.

There are four conductive terminals 3 in each row on the upper and lower ends of the ferrule 21, and the first, second, third, and fourth conductive terminals 3 on the upper end of the ferrule 21 from left to right are connected with the ferrule in turn. 21. The first, second, third, and fourth conductive terminals 3 are connected in one-to-one correspondence from right to left on the lower end surface, so as to realize the first conductive terminal 3 when the front side is inserted and the first conductive terminal 3 when the reverse side is inserted. The conductive terminals 3 are correctly connected to the same terminal position. Of course, each row of conductive terminals 3 on the upper and lower ends of the ferrule 21 can also be 8 or other numbers.

The insulating body 2 is combined with the conductive terminal 3 into an integral structure through integral injection molding to ensure that the conductive terminal 3 is not loose, and the structure of the conductive terminal 3 will not be damaged after long-term plugging and unplugging, so that the electrical transmission performance is stable and reliable. At the same time, the two rows of conductive terminals 3 are tightly pressed and fixed, and the combination is stable and reliable. The insulating body 2 is a saturated thermosetting high-temperature-resistant plastic material, which has higher strength and can more reliably fix the conductive contact portions 32 of the corresponding conductive terminals 3 together.

The conductive contact portion 32 of each conductive terminal 3 is located inside the front end of the ferrule 21 , and the ferrule 21 is provided with a press-fit hole 22 , and each contact point is located in the press-fit hole 22 .

The conductive contact portion 32 of each conductive terminal 3 and the conductive contact portion 32 of the corresponding conductive terminal 3 are arranged vertically and tightly pressed and fixed to each other. The distance of pressing in the vertical direction is shorter and the pressing is more convenient. The rear end of each conductive terminal 3 located on the lower end surface of the ferrule 21 is respectively formed with a pin 34 extending out of the rear end of the insulating body 2. The pin 34 can be made into a wire-welding type, an SMT PCB board type or a DIP PCB board type. To apply to different occasions. The USB socket can also be placed horizontally, vertically or sideways according to the product space structure.

The contact elastic piece 33 has a protruding bump 35 protruding outward, which can increase the elastic force of the contact elastic piece 33 of the conductive terminal 3 . The conductive contact portions 32 of the corresponding two conductive terminals 3 are fixedly connected by welding, such as spot welding, soldering and the like. The rear end of the metal shell 1 is integrally formed with an elastic hook 11 for easy installation on the circuit board.

The utility model also discloses a method for preparing the above-mentioned USB socket that can be plugged in opposite directions, including the following steps:

S1. Make an upper terminal group and a lower terminal group respectively, wherein both the upper terminal group and the lower terminal group include a row of conductive terminals 3, and each conductive terminal 3 is formed with a contact shrapnel 33 respectively, and the front ends of each conductive terminal 3 respectively face A conductive contact portion 32 extends from the front;

The conductive contact parts 32 of each conductive terminal 3 of the upper terminal group are connected into one body through the terminal connecting material 36, and the conductive contact parts 32 of each conductive terminal 3 of the lower terminal group are connected into one body through the terminal connecting material 36, and the upper terminal The rear ends of each conductive terminal 3 in the group are connected into one body through an upper terminal strip 37, and pins 34 extend backwards from the rear ends of each conductive terminal 3 in the lower terminal group, and the pins 34 of each conductive terminal 3 The rear ends are connected together by the lower terminal strip 38 to prevent deformation or structural damage between the conductive terminals 3 of the upper terminal group and the lower terminal group in subsequent processes such as packaging and transportation, surface plating, and assembly. Affect post-process assembly and production;

S2. Put the upper terminal group and the lower terminal group into the mold cavity of the insulating body 2 in a manner of setting intervals up and down, and position them through the mold. The contact parts 32 respectively correspond one-to-one to the conductive contact parts 32 of the conductive terminals 3 in the lower terminal group in sequence from right to left;

S3. Fix the conductive contact portion 32 of each conductive terminal 3 in the upper terminal group with the conductive contact portion 32 of the corresponding conductive terminal 3 in the lower terminal group by strong pressure, so that the corresponding two conductive contacts The contacts between the parts 32 form contact points; the strong pressure is more than 45 tons, so that the conductive contact parts 32 can achieve better connection, reduce resistance, and can withstand high voltage and high current; the corresponding conductive terminals The conductive contact parts 32 of 3 can be pressed and fixed by the clamping force of the mold clamping, the structure is simple, and the operation is convenient.

S4. Inject plastic raw materials into the mold cavity to form the insulating body 2, so that the insulating body 2 and each conductive terminal 3 are closely combined to form an integrated structure, wherein the front end of the insulating body 2 protrudes from the ferrule 21, and each conductive terminal 3 The conductive contact parts 32 of the terminals 3 are covered inside the insulating body 2, the contact springs 33 of the conductive terminals 3 in the upper terminal group protrude from the upper end surface of the ferrule 21, and the contact springs 33 of the conductive terminals 3 in the lower terminal group protrude out of the socket. The lower end surface of the core 21; the plastic material is a saturated thermosetting high temperature resistant plastic material;

S5. Cut off the terminal connection material 36 to ensure independent conduction between the conductive terminals 3;

S6. Cut off the upper terminal strip 37, bend the pin 34 and cut off the lower terminal strip 38, so as to ensure independent conduction between the conductive terminals 3;

S7 , installing the metal shell 1 on the outside of the insulating body 2 and pressing and fixing it with the insulating body 2 .

Both sides of the ferrule 21 of the USB socket prepared by the method of the utility model can be electrically connected, so that the plug can be effectively electrically connected when inserted into the socket from any direction, which is convenient to use, and the phenomenon of wrong direction insertion will not occur. The plug and socket are effectively protected, the connection is simple and convenient, durable, and the operation efficiency is improved; the conductive terminal 3 is integrally injected with the insulating body 2 in the mold cavity to make the two rows of conductive terminals 3 closely bonded and fixed, and the combination is stable and reliable. And the production process is simple, the production efficiency is improved, mass production can be realized, the cost is saved, and the connection structure between the USB socket and the circuit board is not changed, and the USB socket can be directly assembled into the electronic device without replacing or redesigning the circuit board , can be directly installed on a standard circuit board so that it can directly replace the traditional one-way USB socket.

Of course, the above are only preferred embodiments of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the utility model patent application are included in the utility model patent application within range.

Claims (8)

1. one kind can both forward and reverse directions to insert USB socket, include metal shell, be arranged on the insulating body in metal shell, conducting terminal, it is characterized in that: the front end of described insulating body has protruded out lock pin, the both ends of the surface up and down of lock pin respectively arrange row's conducting terminal, conducting terminal is embedded at insulating body inner, insulating body to be combined into one structure by integral injection molding mode and conducting terminal, each conducting terminal forms respectively the contact flat spring extending lock pin outside, the contact flat spring being positioned at the conducting terminal of lock pin upper surface upwards arches upward, the contact flat spring being positioned at the conducting terminal of lock pin lower surface arches upward downwards, the conducting terminal of lock pin upper surface connects one to one to left order by by the right side with the conducting terminal of lock pin lower surface respectively successively by by left-to-right order, wherein, each conducting terminal extends respectively to inner side electrically conducting contact, and the electrically conducting contact of each conducting terminal extends to the position of the electrically conducting contact of corresponding conducting terminal respectively and the contact conducting that is laminated forms contact point.

2. according to claim 1 a kind of can both forward and reverse directions to insert USB socket, it is characterized in that: it is 4 that the both ends of the surface up and down of described lock pin often arrange conducting terminal, lock pin upper surface is connected one to one to left 1st, the 2nd, the 3rd, the 4th conducting terminal by the right side with lock pin lower surface respectively successively by left-to-right 1st, the 2nd, the 3rd, the 4th conducting terminal.

3. according to claim 1 a kind of can both forward and reverse directions to insert USB socket, it is characterized in that: described insulating body is the saturated high temperature resistant plastic material of thermosetting.

4. according to claim 1 a kind of can both forward and reverse directions to insert USB socket, it is characterized in that: the conduction contact part of described each conducting terminal is all positioned at the inside of lock pin front end, and lock pin offers pressing hole, each contact point is all arranged in pressing hole.

5. according to claim 1 a kind of can both forward and reverse directions to insert USB socket, it is characterized in that: the electrically conducting contact of described each conducting terminal is arranged along the vertical direction with the electrically conducting contact of corresponding conducting terminal respectively and tight pressing is fixed mutually, and the rear end being positioned at each conducting terminal of lock pin lower surface forms the pin extending insulating body rear end respectively.

6. according to claim 1 a kind of can both forward and reverse directions to insert USB socket, it is characterized in that: described contact flat spring convex is provided with convex closure.

7. according to claim 1 a kind of can both forward and reverse directions to insert USB socket, it is characterized in that: the one-body molded flexible grab in described metal shell rear end.

8. according to claim 1 ~ 7 any one a kind of can both forward and reverse directions to insert USB socket, it is characterized in that: be fixedly connected with by welding manner between the electrically conducting contact of described corresponding two conducting terminals.