TWM475057U - USB socket connector with detection utility - Google Patents

Description

USB socket connector with detection utility (3)

This creation is about a USB connector, especially a USB socket connector that can detect detection errors and is more compact.

According to the universal serial bus connector (hereinafter referred to as USB connector), it has been widely used in various electronic devices to serve as a connection interface for transmitting data and power between two electronic devices. Although the main function of the USB interface is to provide a standard specification for data transmission between the host device and its external peripheral devices, the USB connector, especially the USB socket, can also be used as a power outlet, whereby the host device can provide an external peripheral. The power required for the operation of the device or the rechargeable battery inside it is charged; and the plug connector generally used for transmitting signals is combined with the electrical connector of the socket connector, and a detection terminal is provided to determine the connection of the plug connector to the socket. After the device is plugged in, the signal transmission is started or the power supply is turned on or other detection functions are performed.

In order to achieve the above functions, some people have proposed to create, please refer to the Republic of China Patent No. M426190 (content with the Chinese mainland utility model patent CN202231226U), hereinafter referred to as the A case, the case A can achieve detection effectiveness, but because of detection The terminal is disposed on the side of the insulating body and the insulating side arm is located outside the conductive housing. Therefore, the arrangement increases the material cost and makes the connector bulky on the tightly laid circuit board. Take up more space and waste the layout.

In order to solve the problem of the A case, some people have proposed improvement to provide a compact electrical connector. Please refer to the Republic of China Patent No. M450098, hereinafter referred to as the B case. The case B reveals an insulating body and is disposed on the insulating body. a plurality of conductive terminals, a shielding case covering the insulative housing, and a detecting terminal mounted on the insulative housing, the shielding housing having two side walls respectively located on opposite sides of the docking space, and at least one of the side walls is integrally formed with the detecting elastic piece The detecting terminal is provided with a detecting arm extending forwardly, and the detecting elastic piece is formed by tearing from the side wall, and is opposite to the position of the detecting arm to be in electrical contact with the detecting arm, and the side wall is also integrally provided Detecting the rear side of the shrapnel The reinforcing portion, the reinforcing portion and the detecting elastic piece protrude outwardly from the plane of the side wall to form a yield space on a side of the docking space, wherein the detecting arm is located in the letting space and protrudes into the In the docking space, the upper and lower edges of the reinforcing portion are connected to the side wall.

Although the case B can reduce the problem of material cost increase and volume increase in case A, the strength of the shield case is weakened because the detection shrapnel is formed by tearing the side wall of the shield case, and the creator of case B also finds cover. The strength of the wall shell is weakened, so the reinforcing portion is simultaneously increased to maintain the strength of the side wall, and the relative increase of the reinforcing portion also increases the manufacturing cost. Therefore, the case B is still required for the shielding case of the general public specification. In addition, in the normal state, the detecting terminal is separated from the detecting elastic piece (Normal open), and when a pair of connecting components (for example, a USB plug connector) is inserted, the docking component presses the detecting terminal to the outside, and Forcing the electrical contact with the detecting shrapnel to achieve the detection function. Although the B case can pass the detecting terminal and the detecting shrapnel provided on the shielding shell to achieve the detecting function, the internal space of the shimming shell of the general public specification is too If the case is too small, the case of B must protrude from the plane of the side wall to form the space of the corresponding detection arm. Therefore, the volume of the shielding case in case B is still larger than the general public regulations. The shielding housing is large.

In addition, please refer to the Republic of China Patent No. M431478, hereinafter referred to as the C case. The C case discloses a detecting elastic arm formed by the detecting terminal and the metal casing to constitute a detecting structure, although the detection purpose can be achieved. However, since the detecting terminal extends to expose the metal casing, the detecting terminal is easily skewed or damaged due to the collision, and the occupied space is also large.

When the connector is applied to an electronic device, whether the structure of the case A, the case B or the case C is used, the volume of the connector is larger than that of a general-purpose connector, and in a limited space application, it is bound to be limited, or It is necessary to modify the configuration of the circuit or other components of the electronic device, which causes the system manufacturer's manufacturing troubles, and it is necessary to improve it. In addition, Cases A, B, and C have a common point, and all use detection terminals and shielding. The detection shrapnel (ie, the detecting shrapnel) of the casing (ie, the conductive casing) is in contact with each other to achieve the detection effect, and since the detecting terminal and the detecting shrapnel are normally open, a certain space is required between the two. After avoiding prolonged use, the detection terminal or the detecting elastic piece is deformed, and the distance between the two is brought close to the wrong one, and the problem of detecting the error is generated. Therefore, in order to avoid the above problems, the case A and the case C are The detection terminal is placed outside the conductive housing, or the case B is designed to make a space for the shielding shell. In addition, the side wall of the B case is hollowed out due to the design of the space, and also because the detecting spring is located. Outside the side arm Housing at a position corresponding to the passage space formed tear and no longer be fixed pins, the plug is fixed to the circuit board, Therefore, the fixing can only be fixed by the mounting feet at the rear end of the shielding shell, and the fixing strength is obviously insufficient; the creator proposes to solve the above problem, and proposes the creation scheme to improve and provide the case A or the case B. C is a smaller connector.

The main purpose of this creation is to provide a USB socket connector (1) with a detection effect, and a constant contact between the metal casing and the conductive terminal or the detecting terminal to avoid false detection and detection errors, and to provide more Compact connector.

The secondary purpose of this creation is to provide a USB socket connector (1) with detection utility, which can achieve the purpose of detecting function and reduce the cost under the same volume or component of the common gauge connector.

The present invention mainly provides a USB socket connector (3) having a detection effect, comprising an insulative housing, a plurality of conductive terminals disposed on the insulative housing, and covering the insulative housing and the conductive terminals. Forming a metal housing having a plug-in chamber, the insulating system having a base portion and a tongue portion extending forwardly from the base portion, the tongue portion having a pair of end faces for the conductive terminals to be disposed thereon The two sides of the two sides of the mating end face and the abutting end faces of the other side of the mating end face, the conductive terminals comprise a first terminal set and a second terminal set, wherein the metal case faces the The conductive terminal extends with an abutting elastic arm. In a normal state, the abutting elastic arm is electrically connected to one of the first terminal group or the second terminal group, and the metal housing and the conductive terminal are Form a detection loop.

Thereby, the USB socket connector can be plugged into a standard USB plug connector or a special USB plug connector, and the standard USB plug connector is based on the USB specification and has a standard housing, the special USB plug connector The utility model has a special outer casing inserted into the USB socket connector to a depth deeper than the standard casing, wherein the standard USB plug connector or the special USB plug connector is inserted into the plug-in chamber, only the special The outer casing abuts the abutting elastic arm and separates it from the first terminal set or the second terminal set, and the special outer casing does not electrically contact the conductive terminal.

The present invention further provides a USB socket connector (3) having a detection effect, comprising an insulative housing, a plurality of conductive terminals disposed on the insulative housing, and covering the insulative housing and the conductive terminals Forming a metal housing of the plug-in chamber, the insulating system has a base portion and a tongue portion extending forwardly from the base portion, the tongue portion having a pair of end faces on which the conductive terminals are disposed, two side faces on opposite sides of the abutting end face, and the other side of the butt end face The conductive terminal includes a first terminal group and a second terminal group, wherein the conductive terminals further include a detecting terminal, and the metal housing extends toward the detecting terminal. The abutting arm is electrically connected to the detecting terminal in a normal state, and a detecting circuit is formed between the metal shell and the detecting terminal.

Thereby, the USB socket connector can be plugged into a standard USB plug connector or a special USB plug connector, and the standard USB plug connector is based on the USB specification and has a standard housing, the special USB plug connector The utility model has a special outer casing, and the special outer casing is inserted deeper than the standard outer casing, wherein the standard USB plug connector or the special USB plug connector is inserted into the plug-in chamber, only the The special outer casing presses against the abutting elastic arm and separates it from the detecting terminal, and the special outer casing does not electrically contact the detecting terminal.

The present invention further provides a USB socket connector (3) with a detection utility, which can be plugged into a standard USB plug connector or a special USB plug connector, and the standard USB plug connector is based on the USB specification, and The utility model has a special casing, the special USB plug connector has a special casing, and the special casing is inserted into the USB socket connector to be deeper than the standard casing. The USB socket connector comprises an insulating body and a plurality of conductive terminals. And a metal casing having a base portion and a tongue portion extending forwardly from the base portion, the tongue portion having a pair of end faces, two side faces on opposite sides of the abutting end face, and another end face on the butt end face The conductive terminal is disposed on the insulative housing and partially extends on the mating end surface, and the metal housing is wrapped around the insulative housing and the conductive terminals to form a plug. And the metal housing has an abutting elastic arm extending toward the conductive terminals. In a normal state, the abutting elastic arm is electrically connected to one of the conductive terminals, and the metal housing is coupled to the metal housing Formed between the detection terminals of the electrical circuit, which is not based special housing with the electrically conductive terminal contact.

Thereby, when the standard USB plug connector or the special USB plug connector is inserted into the plug-in chamber, only the special case presses against the abutting arm and separates it from the conductive terminal.

The creation further provides a USB socket connector (3) with detection utility, which can be plugged into a standard USB plug connector or a special USB plug connector, and the standard USB The plug connector is based on the USB specification and has a standard housing. The special USB plug connector has a special housing, and the special housing is inserted into the USB socket connector to a depth deeper than the standard housing. The USB socket connector is The utility model comprises an insulating body, a plurality of conductive terminals and a metal shell. The insulating system has a base portion and a tongue portion extending forwardly from the base portion, the tongue portion having a pair of end faces on both sides of the butt end face The two sides and an abutting end surface on the other side of the mating end face, the conductive terminals are disposed on the insulative housing and partially extend on the mating end face, and the metal case is wrapped around the insulative body and A conductive receiving chamber is formed outside the conductive terminals, and the metal housing extends toward the conductive terminals with an abutting elastic arm. In a normal state, the abutting elastic arm is electrically connected to one of the conductive terminals, so that A detection circuit is formed between the metal housing and the conductive terminal.

Thereby, when the standard USB plug connector or the special USB plug connector is inserted into the plug-in chamber, the standard shell and the special shell are pressed against the abutting arm and separated from the conductive terminal. And the standard housing and the special housing are not in electrical contact with the conductive terminal.

The creation design is in constant contact with the elastic arm and the conductive terminal or the detecting terminal, and when the USB plug connector is inserted, the two can be separated by the outer casing, thereby abutting the elastic arm and the conductive terminal or the detecting terminal The signal generated by the separation is used to achieve the detection effect. At the same time, the constant contact design can be applied in a small space without causing malfunction due to too small space. Therefore, the same size can be used in the common connector or On the basis of the component, the purpose of detecting the function is achieved, or a more compact connector can be provided, and the material cost can be reduced. In addition, the abutting elastic arm only needs to be displaced outward by a small distance to the conductive terminal or the The detection terminal is separated, so it does not take up extra space.

The above-mentioned objects, advantages and features of the present invention will be described in detail by the following description of the preferred embodiments.

[this creation]

100‧‧‧USB socket connector

10‧‧‧Insulated body

11‧‧‧ base

12‧‧ ‧Tongue

121‧‧‧Docking end face

122‧‧‧ side

123‧‧‧Abutment end face

124‧‧‧ Groove

20‧‧‧Electrical terminals

21‧‧‧First terminal group

22‧‧‧Second terminal group

211‧‧‧ Grounding terminal

212‧‧‧ Signal Terminal

23‧‧‧Detection terminal

231‧‧‧Contacts

232‧‧‧Weld Department

30‧‧‧Metal housing

31‧‧‧ top wall

32‧‧‧ bottom wall

33‧‧‧ side wall

34‧‧‧Abutting the arm

35‧‧‧ front fixed feet

36‧‧‧Fixed feet

200‧‧‧Standard USB plug connector

201‧‧‧Standard housing

300‧‧‧Special USB plug connector

301‧‧‧Special housing

C‧‧‧ plug-in room

The first figure is a combined perspective view of the first embodiment of the creation.

The second figure is an exploded perspective view of the first embodiment of the creation.

The third figure is a plan view of the first terminal group of the first embodiment of the creation.

The fourth figure is a combined sectional view of the first embodiment of the creation.

The fifth figure is a plan view of the first terminal group of the second embodiment of the present invention.

The sixth drawing is a combined sectional view of the second embodiment of the creation.

The seventh figure is a schematic diagram of the assembly of the second embodiment of the present invention and a standard USB plug connector.

The eighth figure is a schematic diagram of the assembly of the second embodiment of the present invention with a special USB plug connector.

The ninth drawing is a schematic diagram of the assembly of the third embodiment of the present invention and a standard USB plug connector.

Referring to the first and second figures, respectively, a combination perspective view and an exploded perspective view of the first embodiment of the present invention; the USB socket connector 100 of the present invention comprises: an insulative housing 10 having a base portion 11 and A tongue portion 12 extending forwardly from the base portion 11 has a pair of end faces 121, two side faces 122 on opposite sides of the mating end face 121, and an abutting end face 123 on the other side of the mating end face 121. At the same time, the tongue portion 12 is provided with a groove 124 at the position corresponding to the abutting end surface 123 (as shown in the fourth figure). In the first embodiment of the present invention, the groove 124 is close to the position of the base portion 11.

The top view of the first terminal group of the first embodiment of the present invention is shown in the figure. The plurality of conductive terminals 20 are respectively disposed on the insulative housing 10 and partially extended on the tongue portion 12 . The conductive terminal 20 includes a first terminal set 21 having five terminals and a second terminal set 22 having four terminals. The first terminal set 21 includes a ground terminal 211. And the two pairs of signal terminals 212 on the two sides of the grounding terminal 211. In the first embodiment of the present invention, the detecting terminal 23 is further disposed between the grounding terminal 211 and the pair of signal terminals 212. Insert molding is performed on the insulative housing 10 and has a contact portion 231 and a soldering portion 232. The contact portion 231 is partially exposed to the recess 124, and the solder portion 232 is extended by the base portion 11. And out.

Please refer to the fourth embodiment, which is a sectional view of the first embodiment of the present invention; a metal casing 30 is wrapped around the insulative housing 10 and the conductive terminals 20, and forms a plug-in chamber C. The metal shell 30 has a top wall 31 and a bottom wall 32 facing the mating end surface 121 and the abutting end surface 123 respectively. The top wall 31 and the bottom wall 32 are further connected with two side walls 33. At the same time, the bottom wall 32 of the metal casing 30 further extends integrally with the detecting terminal 23 to have an abutting elastic arm 34. In the normal state, the abutting elastic arm 34 is in electrical contact with the detecting terminal 23, and the abutting The elastic arm 34 can be electrically contacted with the detecting terminal 23 through the recess 124 to make the metal shell A detecting circuit is formed between the body 30 and the detecting terminal 23, wherein in the extending direction of the tongue portion 12, in the present embodiment, the middle portion of the side wall 33 of the metal shell 30 can be integrally torn to form a front solid. The pin 35 is extended in the rear portion to form two rear fixing legs 36. The front and rear fixing legs 35 and 36 can be inserted and fixed on a circuit board (not shown) to increase the fixing strength. .

Please refer to the fifth and sixth figures, respectively, for a top view and a combined cross-sectional view of the first terminal set of the second embodiment of the present invention; the first embodiment is substantially the same as the second embodiment, and the main difference is that The detecting terminal 23 is not disposed in the first terminal group 21, and the abutting elastic arm 34 extending from the bottom wall 32 directly communicates with the grounding terminal 211 through the recess 124, relative to the first In one embodiment, the second embodiment reduces the detection terminal 23, so that the manufacturing cost can be further reduced, and the remaining functions are the same as those of the foregoing first embodiment, and will not be further described.

In order to further understand the characteristics of this creation, the use of technical means and the expected results, we will describe the use of this creation. I believe that we can have a deeper and more specific understanding of this creation, as follows: Please also cooperate Referring to FIG. 7 , a schematic diagram of a second embodiment of the present invention and a standard USB plug connector; in the normal state, the abutting elastic arm 34 is electrically connected to the ground terminal 211 through the recess 124 . In contact, when a standard USB plug connector 200 is inserted into the plug-in chamber C, a standard housing 201 provided by the standard USB plug connector 200 cannot abut the abutting arm 34 and causes it to The grounding terminal 211 is separated. Referring to the eighth figure, when a special USB plug connector 300 (for example, USB PD (Power Delivery)) is inserted into the plug-in chamber C, a special casing is provided. The depth of the 301 plugged into the USB receptacle connector 100 is deeper than the standard outer casing 201, so the abutting elastic arm 34 can be pushed up and separated from the grounding terminal 211, and the special outer casing 301 does not The ground terminal 211 is in electrical contact with each other. The signal generated by the abutting elastic arm 34 and the grounding terminal 211 is separated to achieve the detection effect. In addition, in the first embodiment of the present invention, the special housing 301 can also push the abutting elastic arm 34 to the top (Fig. Not shown), and is separated from the detection terminal 23, and the detection effect is achieved in the same manner.

This creation will design a constant contact between the elastic arm 34 and the detecting terminal 23. This method can be applied in a small space without the malfunction caused by the space being too small, so that it can be connected in the public regulation. On the basis of the same volume or component, the purpose of detecting function is achieved, or a more compact connector is provided. In addition, the abutting elastic arm 34 only needs to be displaced outward by a small distance. The detection terminal 23 is separated, so that no extra space is occupied.

In addition, please refer to the ninth figure, which is a schematic diagram of the assembly of the third embodiment of the present invention and a standard USB plug connector; the third embodiment of the present invention is substantially the same as the first and second embodiments, and the main The difference is that the position of the abutting elastic arm 34 contacting the grounding terminal 211 is away from the base 11. In the third embodiment of the present invention, the recess 124 is away from the base 11 when the standard USB plug is connected. When the device 200 is inserted into the plug-in chamber C, the standard housing 201 pushes the abutment arm 34 and separates it from the ground terminal 211 for detection. Of course, the special USB plug connector The special outer casing 301 of the 300 can also push the abutting elastic arm 34 (not shown) to achieve the same utility.

The specific embodiments set forth in the detailed description of the preferred embodiments are intended to be illustrative of the nature of the invention, and are not intended to limit the scope of the invention to the embodiments. The implementation of all kinds of changes is within the scope of this creation.

10‧‧‧Insulated body

11‧‧‧ base

12‧‧ ‧Tongue

121‧‧‧Docking end face

122‧‧‧ side

123‧‧‧Abutment end face

21‧‧‧First terminal group

22‧‧‧Second terminal group

30‧‧‧Metal housing

31‧‧‧ top wall

32‧‧‧ bottom wall

33‧‧‧ side wall

34‧‧‧Abutting the arm

35‧‧‧ front fixed feet

36‧‧‧Fixed feet

Claims (16)

A USB socket connector (3) having a detection effect, comprising an insulating body, a plurality of conductive terminals disposed on the insulating body, and covering the insulating body and the conductive terminals and forming a plug a metal housing of the chamber, the insulating system having a base portion and a tongue portion extending forwardly from the base portion, the tongue portion having a pair of end faces on which the conductive terminals are disposed, located at the butt joint The two sides of the two sides of the end face and an abutting end face on the other side of the abutting end face, the conductive terminals comprise a first terminal set and a second terminal set, the main feature of which is that the metal casing faces the same The conductive terminal extends with an abutting elastic arm. In a normal state, the abutting elastic arm is electrically connected to one of the first terminal group or the second terminal group, and the metal housing and the conductive terminal are formed. a detection circuit; thereby, the USB socket connector can be plugged into a standard USB plug connector or a special USB plug connector, and the standard USB plug connector is based on the USB specification and has a standard housing, Special USB The head connector has a special casing inserted into the USB socket connector to a depth deeper than the standard casing, wherein the standard USB plug connector or the special USB plug connector is inserted into the plug-in chamber Only the special outer casing abuts the abutting elastic arm and separates it from the first terminal group or the second terminal group, and the special outer casing does not overlap with the first terminal group or the second terminal group Phase electrical contact. The USB socket connector (3) having the detection utility described in claim 1, wherein the metal housing has a top wall and a bottom wall respectively facing the butting end surface and the abutting end surface. Two sidewalls are further connected between the top wall and the bottom wall, and the first terminal group includes a grounding terminal and two pairs of signal terminals on opposite sides of the grounding terminal, and the abutting elastic arm is grounded by the bottom wall The terminal is integrally formed to extend, and in the normal state, the abutting elastic arm is electrically connected to the grounding terminal. The USB socket connector (3) having the detection utility described in claim 2, wherein the tongue portion is provided with a groove at a position corresponding to the elastic arm, and the ground terminal portion is partially exposed. In the recess, the abutting elastic arm can be electrically connected to the grounding terminal through the recess. A USB socket connector (3) having a detection effect, comprising an insulating body, a plurality of conductive terminals disposed on the insulating body, and covering the insulating body and the conductive terminals and forming a plug a metal housing of the chamber, the insulating system having a base portion and a tongue portion extending forwardly from the base portion, the tongue portion having a pair of contacts on which the conductive terminals are disposed An end surface, two side surfaces on opposite sides of the mating end surface, and an abutting end surface on the other side of the mating end surface, the conductive terminals comprise a first terminal group and a second terminal group, and the main features are: the conductive The terminal further includes a detecting terminal, and the metal housing extends toward the detecting terminal to have an abutting elastic arm. In a normal state, the abutting elastic arm is electrically connected to the detecting terminal, and the metal housing is Forming a detection loop with the detection terminal; thereby, the USB socket connector can be plugged into a standard USB plug connector or a special USB plug connector, and the standard USB plug connector is based on the USB specification. And having a standard housing, the special USB plug connector has a special housing, and the special housing is inserted into the USB socket connector to a depth deeper than the standard housing, wherein the standard USB plug connector or the special USB plug is connected When the device is inserted into the plug-in chamber, only the special casing will abut the abutting arm and be separated from the detecting terminal, and the special casing will not be in electrical contact with the detecting terminal. . The USB socket connector (3) having the detection utility described in claim 4, wherein the metal housing has a top wall and a bottom wall respectively facing the butting end surface and the abutting end surface, The first terminal group has two terminals, which are respectively a grounding terminal and two pairs of signal terminals located at two sides of the grounding terminal, and the detecting terminal is provided. The abutting elastic arm is integrally formed by the bottom wall toward the detecting terminal between the grounding terminal and the pair of signal terminals. In a normal state, the abutting elastic arm is electrically connected to the detecting terminal. The USB socket connector (3) having the detection utility described in claim 5, wherein the tongue portion is provided with a groove at a position corresponding to the elastic arm, and the detecting terminal portion is The abutting elastic arm is electrically connected to the detecting terminal through the recess. A USB socket connector (3) with a detection utility, which can be plugged into a standard USB plug connector or a special USB plug connector, and the standard USB plug connector is based on the USB specification and has a standard housing The special USB plug connector has a special outer casing, and the special outer casing is inserted into the USB receptacle connector to a depth deeper than the standard outer casing. The USB receptacle connector includes: an insulative body having a base and a tongue portion extending forwardly, the tongue portion having a pair of end faces, two side faces on opposite sides of the abutting end face, and an abutting end face on the other side of the butt end face; a plurality of conductive terminals are disposed on the insulative housing and partially extend on the mating end surface; a metal housing is wrapped around the insulative housing and the conductive terminals to form a plug-in chamber, and the metal The housing extends toward the conductive terminals with an abutting elastic arm. In a normal state, the abutting elastic arm is electrically connected to one of the conductive terminals, so that a detecting circuit is formed between the metal housing and the conductive terminal; Therefore, when the standard USB plug connector or the special USB plug connector is inserted into the plug-in chamber, only the special case presses against the abutting arm and separates it from the conductive terminal, and the special The outer casing is not in electrical contact with the electrically conductive terminal. The USB socket connector (3) having the detection utility described in claim 7 , wherein the conductive terminals comprise a first terminal group and a second terminal group, the first terminal group includes a grounding terminal and two pairs of signal terminals on the two sides of the grounding terminal, the abutting elastic arm is integrally formed by the metal housing extending toward the grounding terminal, and the abutting elastic arm body is electrically connected to the grounding terminal in a normal state. connection. The USB socket connector (3) having the detection utility described in claim 8 wherein the tongue portion is provided with a groove at a position corresponding to the elastic arm, and the ground terminal portion is partially exposed. In the recess, the abutting elastic arm can be electrically connected to the grounding terminal through the recess. The USB socket connector (3) having the detection utility described in claim 7 , wherein the conductive terminals comprise a first terminal group, a second terminal group and a detecting terminal, The one terminal group includes a grounding terminal and two pairs of signal terminals located at two sides of the grounding terminal, and the detecting terminal is disposed between the grounding terminal and one of the pair of signal terminals, and the abutting elastic arm is bounded by the metal shell The body is integrally formed to extend toward the grounding terminal. In a normal state, the abutting elastic arm is electrically connected to the detecting terminal. The USB socket connector (3) having the detection utility described in claim 10, wherein the tongue portion is provided with a groove at a position corresponding to the elastic arm, and the detecting terminal portion is The abutting elastic arm is electrically connected to the detecting terminal through the recess. A USB socket connector (3) with a detection utility, which can be plugged into a standard USB plug connector or a special USB plug connector, and the standard USB plug connector is based on the USB specification and has a standard housing The special USB plug connector has a special outer casing, and the special outer casing is inserted into the USB receptacle connector to a depth deeper than the standard outer casing. The USB receptacle connector includes: An insulative housing has a base portion and a tongue portion extending forwardly from the base portion, the tongue portion having a pair of end faces, two side faces on opposite sides of the abutting end face, and an abutting on the other side of the mating end face An end surface; a plurality of conductive terminals are disposed on the insulative housing and partially extend on the mating end surface; a metal housing is wrapped around the insulative housing and the conductive terminals to form a plug-in chamber, and The metal housing extends toward the conductive terminals with an abutting elastic arm. In a normal state, the abutting elastic arm is electrically connected to one of the conductive terminals, so that a detecting circuit is formed between the metal housing and the conductive terminal. Thereby, when the standard USB plug connector or the special USB plug connector is inserted into the plug-in chamber, the standard shell and the special shell are pressed against the abutting arm and the conductive terminal is Separating, and the standard housing and the special housing are not in electrical contact with the conductive terminals. The USB socket connector (3) having the detection utility of claim 12, wherein the conductive terminals comprise a first terminal group and a second terminal group, the first terminal group includes a grounding terminal and two pairs of signal terminals on the two sides of the grounding terminal, the abutting elastic arm is integrally formed by the metal housing extending toward the grounding terminal, and the abutting elastic arm body is electrically connected to the grounding terminal in a normal state. connection. The USB socket connector (3) having the detection utility described in claim 13 , wherein the tongue portion is provided with a groove at a position corresponding to the elastic arm, and the ground terminal portion is partially exposed. In the recess, the abutting elastic arm can be electrically connected to the grounding terminal through the recess. The USB socket connector (3) having the detection utility described in claim 12, wherein the conductive terminals comprise a first terminal group, a second terminal group and a detecting terminal, The one terminal group includes a grounding terminal and two pairs of signal terminals located at two sides of the grounding terminal, and the detecting terminal is disposed between the grounding terminal and one of the pair of signal terminals, and the abutting elastic arm is bounded by the metal shell The body is integrally formed to extend toward the grounding terminal. In a normal state, the abutting elastic arm is electrically connected to the detecting terminal. The USB socket connector (3) having the detection utility described in claim 15 wherein the tongue portion is provided with a groove at a position corresponding to the elastic arm, and the detecting terminal portion is The abutting elastic arm is electrically connected to the detecting terminal through the recess.