CN114639998A - Connectors, Connector Modules, and Electronic Devices - Google Patents

Abstract

The embodiment of the application relates to the technical field of connectors, and particularly discloses a connector, a connector module and electronic equipment, wherein the connector comprises an insulating body and a terminal module, wherein the insulating body is provided with a slot for being in plug-in fit with an electronic device; the terminal module comprises a plurality of pairs of signal terminals and a plurality of grounding terminals, wherein the signal terminals and the grounding terminals are arranged on the insulating body, at least parts of the signal terminals extend into the slots, the signal terminals and the grounding terminals are arranged along a first direction, the grounding terminals are provided with at least two contact parts, and the contact parts are used for being electrically connected with golden fingers on the electronic device when the connector is in splicing fit with the electronic device. Through the mode, the embodiment of the application can increase the return path of the grounding terminal, so that the shielding effect of resonance is improved.

Description

Connectors, Connector Modules, and Electronic Devices

technical field

The embodiments of the present application relate to the technical field of connectors, and in particular, to a connector, a connector module, and an electronic device.

Background technique

Connectors, also often referred to as electronic connectors, circuit connectors and electrical connectors, are conductor devices that bridge two conductors on a loop so that current or signals can flow from one conductor to another. A connector can provide a separable interface for connecting two sub-electronic systems. Simply put, the component used to complete the electrical connection between circuits or electronic machines is called a connector, that is, a bridge between the two.

Today's computer technology is developing rapidly with each passing day. Desktop computers and notebook computers have generally existed in all corners of society. The development trend of computers is also moving towards the direction of powerful computing functions, high speed and small size. Scale down to suit the development trend of today's computers.

At present, during the use of traditional connectors, the conductive terminals are prone to generate high resonance, thereby affecting the quality and reliability of the high-speed signal transmission of the connector. Therefore, the traditional connectors are equipped with terminals to shield the resonance. However, this application In the process of implementing the present application, the inventor found that there is only one return path for resonance in the ground terminal, and the shielding effect is limited.

SUMMARY OF THE INVENTION

The main technical problem solved by the embodiments of the present application is to provide a connector, a connector module, and an electronic device, which can increase the return path of resonance at the ground terminal.

In order to solve the above technical problems, a technical solution adopted in this application is to provide a connector for plugging and matching with external electronic devices, including an insulating body and a terminal module, and the insulating body is provided with a connector for connecting with the external electronic device. A slot for plugging and matching of electronic devices; the terminal module includes a plurality of pairs of signal terminals and a plurality of ground terminals mounted on the insulating body, the signal terminals at least partially extend into the slot, and the signal terminals are connected with The ground terminals are arranged along the first direction, and the ground terminals have at least two contact parts, and the contact parts are used for contacting the gold fingers on the electronic device when the connector is plugged and matched with the electronic device. connect.

Optionally, the grounding terminal includes: a fixing part fixed with the insulating body; a first connecting arm extending from the fixing part, and the first connecting arm is provided with a a contact portion; and a second connecting arm extending from the fixing portion, the second connecting arm is provided with the contact portion extending into the slot.

Optionally, along the first direction, the ground terminal has a first side and a second side opposite to each other, and the fixing portion, the first connecting arm and the second connecting arm are located on the first side The surfaces of the fixed part, the first connecting arm and the second connecting arm are on the same plane on the second side.

Optionally, the second connecting arm is located on a side of the first connecting arm that faces away from the slot, and a side of the first connecting arm and the second connecting arm that faces away from the fixing portion faces the The slot is bent, one of the contact parts is set on the side of the first connecting arm away from the fixing part, and the other contact part is set at the side of the second connecting arm away from the fixing part, and The depths of the two contact portions extending into the slot are the same; wherein, the bending degree of the second connecting arm is greater than the bending degree of the first connecting arm.

Optionally, the punched surface of the ground terminal is perpendicular to the punched surface of the signal terminal.

Optionally, the ground terminal further includes an elastic arm; the elastic arm is inclined relative to the ground terminal, and between two adjacent ground terminals, the elastic arm of one ground terminal is connected to the other ground terminal. Terminals are electrically connected.

Optionally, the number of the elastic arms is at least two, at least one of the elastic arms is arranged on the first connecting arm, and at least one of the elastic arms is arranged on the second connecting arm.

Optionally, every two adjacent ground terminals are contacted by the elastic arm to form a ground terminal group; the ground terminal group is adjacent to at least one signal terminal.

Optionally, the connector includes two terminal modules, and the two terminal modules are oppositely arranged on both sides of the slot along the second direction.

Optionally, there are at least two adjacent ground terminal groups.

According to another aspect of the embodiments of the present application, a connector module is provided, including the above-mentioned connector and a circuit board, the circuit board is provided with a first pad and a second pad, each of the signal terminals The ground terminal is correspondingly welded to one of the first pads, and the ground terminal is correspondingly welded to the second pad.

Optionally, every two adjacent ground terminals are welded on the same second pad, and the size of the first pad is the same as that of the second pad.

Optionally, the connector further includes a fixing member, and the fixing member includes: a first connecting part fixed to the insulating body; and a second connecting part welded to the circuit board.

According to another aspect of the embodiments of the present application, an electronic device is provided, including the above-mentioned connector module or connector.

The beneficial effects of the embodiments of the present application are: different from the prior art, the ground terminal of the embodiments of the present application is provided with two contact parts, which increases the return path of the ground terminal, thereby improving the shielding effect of resonance.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present application more clearly, the following briefly introduces the drawings required in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained according to the drawings without any creative effort.

1 is a schematic perspective view of a connector module according to an embodiment of the present application;

2 is an exploded schematic view of a connector module according to an embodiment of the present application;

3 is a schematic diagram of the welding of the wiring terminal on the circuit board according to the embodiment of the present application;

Fig. 4 is the enlarged view of A part in Fig. 3;

Figure 5 is an enlarged view of part B in Figure 2;

6 is a schematic perspective view of a signal terminal according to an embodiment of the present application;

7 is a schematic perspective view of a connection terminal according to an embodiment of the present application;

8 is a schematic perspective view of a connection terminal according to another embodiment of the present application;

FIG. 9 is a schematic perspective view of a fixing member according to an embodiment of the present application.

Detailed ways

In order to facilitate the understanding of the present application, the present application will be described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element, or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the technical field belonging to this application. The terms used in the specification of the present application in this specification are for the purpose of describing specific embodiments only, and are not intended to limit the present application. As used in this specification, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to FIGS. 1 to 4 . FIGS. 1 and 2 show a three-dimensional schematic view and an exploded schematic view of the connector module according to the embodiment of the present application, and FIG. 3 shows the soldering of the wiring terminal in the embodiment of the present application on the circuit board. Schematic diagram, FIG. 4 shows an enlarged view of part A in FIG. 3 . A connector module 1 includes the above-mentioned connector 10 and a circuit board 20 . The connector 10 includes an insulating body 100 and a terminal module 200 . The insulating body 100 is provided with a slot 110 for inserting and mating with the electronic device 2 . The terminal module 200 includes a plurality of pairs of signal terminals 210 and a plurality of ground terminals 220 mounted on the insulating body 100 . The signal terminals 210 at least partially extend into the slots 110 , and the signal terminals 210 and the ground terminals 220 are arranged at intervals along the first direction X, and are grounded. The terminal 220 has at least two contact portions 220 a, and the contact portions 220 a are used for electrical connection with the gold fingers 2 a on the electronic device 2 when the connector 10 is plugged and mated with the electronic device 2 . The circuit board 20 is provided with a first pad 21 and a second pad 22 . The first pad 21 and the second pad 22 are both rectangular parallelepiped and have the same size. Each signal terminal 210 is soldered to a first pad 21 correspondingly. , the ground terminal 220 is correspondingly welded to the second pad 22 , and the size of the first pad 21 is the same as that of the second pad 22 . It should be noted that, in the embodiment of the present application, the size of the first pad 21 and the size of the second pad 22 are the same, which means that the length, width and height of the first pad 21 and the second pad 22 are equal respectively. , but the specific shapes and sizes of the first pads 21 and the second pads 22 are not limited in the present application. In other embodiments of the present application, the shapes and sizes of the first pads 21 and the second pads 22 may be different. Similarly, the first pads 21 and the second pads 22 may also have other shapes such as cylinders, truncated cones, prisms, and truncated pyramids.

For the above-mentioned insulating body 100, please refer to FIG. 5. FIG. 5 shows an enlarged view of part B in FIG. 2. In combination with FIG. 2, the insulating body 100 is in the shape of a rectangle as a whole and extends along the first direction X. The slot 110 is provided with At one end of the insulating body 100 facing away from the circuit board 20 , the slot 110 has a rectangular shape and the slot 110 extends along the second direction Y, and the bottom of the slot 110 extends along the third direction Z toward the opening of the slot 110 to form a positioning portion 111 , the electronic device 2 is provided with a corresponding positioning slot 2b, and the positioning portion 111 plays a positioning role when the electronic device 2 extends into the slot 110, preventing the electronic device 2 from being reversely installed at both ends of the first direction X, affecting the electronic device 2 electrical connection. The two ends of the positioning portion 111 along the first direction X and the two side walls of the slot 110 along the second direction Y are provided with ribs 120 . so as to realize the fixed installation of the electronic device 2 on the insulating body 100 . Near the opening of the slot 110 along the third direction Z, the positioning portion 111 is designed in a semi-circular arc shape, and the rib 120 is provided with a chamfer, so that the electronic device 2 can be easily inserted into the slot 110 . It should be noted that the present application does not limit the specific shapes of the insulating body 100 and the slot 110. In other embodiments of the present application, the insulating body 100 and the slot 110 may be in the shape of a cylinder, a prism, or a prism, etc., to achieve The electronic device 2 can be accommodated and installed in the insulating body 100 . It should also be noted that, in the embodiment of the present application, the positioning portion 111 is disposed at about one-seventh of the slot 110 in the first direction X, but the present application does not limit the specific position of the positioning portion 111. In other embodiments of the present application, the positioning portion 111 may also be disposed at one-sixth or one-third of the slot 110 in the first direction X, so that the positioning portion 111 is not located in the slot 110 in the first direction X. One-half of the direction X is sufficient.

For the above-mentioned terminal module 200, please refer to FIG. 2 to FIG. 4, four ground terminals 220 are disposed between each pair of adjacent signal terminals 210, each two adjacent ground terminals 220 constitute a ground terminal group, and each ground terminal The two ground terminals 220 of the group are soldered to the same second pad 22 . The design of the four ground terminals 220 between adjacent signal terminals 210 can further increase the return path of the resonance and enhance the shielding effect. The number of the terminal modules 200 is two groups. The two terminal modules 200 are oppositely disposed on both sides of the slot 110 along the second direction Y, and along the second direction Y, a pair of signal terminals 210 in one terminal module 200 are facing each other. Two ground terminal groups in the other terminal module 200 are provided. The design of the two groups of terminal modules 200 can enable the connector 10 to be designed with more signal terminals 210 and ground terminals 220 under the same length in the first direction X, thereby increasing the space utilization rate and preventing the connector 10 from being damaged. The size of a single direction is too large. It should be noted that the present application does not limit the number of ground terminals 220 between each pair of adjacent signal terminals 210. In other embodiments of the present application, the number of ground terminals 220 between each pair of adjacent signal terminals 210 The number can be 1, 3, or 8, etc., or the ground terminals 220 are not provided, and the number of ground terminals 220 between each pair of adjacent signal terminals 210 can be unequal, so that at least two pairs of adjacent signal terminals At least four ground terminals 220 may be provided between 210 .

For the above-mentioned signal terminal 210 , please refer to FIG. 6 , which shows a three-dimensional schematic diagram of a signal terminal according to an embodiment of the present application. The signal terminal 210 includes a holding portion 211 and an extending arm 212. The holding portion 211 and the extending arm 212 are arranged at a certain angle, and one end of the holding portion 211 away from the extending arm 212 is bent to form a welding end 211a. The plate 21 is welded, and one end of the extension arm 212 away from the holding portion 211 is bent to form a contact end 212a, the contact end 212a is used to extend into the socket 110 and electrically connect with the gold finger 2a on the electronic device 2 . Both sides of the holding portion 211 extend toward the first direction X to form protrusions 221c. When the signal terminal 210 is mounted on the insulating body 100, the extending arm 212 first extends into the insulating body 100 until the contact end 212a extends into the slot 110, and the holding portion The 211 abuts against the insulating body 100 , thereby limiting the penetration depth of the signal terminal 210 . At this time, the welding end 211 a is exposed outside the insulating body 100 .

For the above-mentioned ground terminal 220 , please refer to FIG. 7 , which is a schematic perspective view of a connection terminal according to an embodiment of the present application. The ground terminal 220 includes a fixing portion 221, a first connecting arm 222 and a second connecting arm 223. The side of the fixing portion 221 facing away from the slot 110 extends along the second direction Y to form a welding portion 221a, and the welding portion 221a is used for connecting with the second welding portion. The plate 22 is welded, and a boss 221b is provided on the side of the connection between the welding part 221a and the fixing part 221 away from the circuit board 20 . One end of the groove 110 extends along the second direction Y to form a protrusion 221c, and the protrusion 221c is used to abut the insulating body 100 in the second direction Y. As shown in FIG. Both the first connecting arm 222 and the second connecting arm 223 are formed by extending the fixing portion 221 , the second connecting arm 223 is located on the side of the first connecting arm 222 away from the slot 110 , and the first connecting arm 222 and the second connecting arm 223 are away from the slot 110 . One side of the fixing portion 221 is bent toward the slot 110 , a contact portion 220 a is arranged on the side of the first connecting arm 222 away from the fixing portion 221 , and the other contact portion 220 a is arranged at the side of the second connecting arm 223 away from the fixing portion 221 . , and the depths of the two contact portions 220a extending into the slot 110 are the same, and the two contact portions 220a are arranged at intervals along the third direction Z. The bending degree of the second connecting arm 223 is greater than that of the first connecting arm 222 . When the ground terminal 220 is installed on the insulating body 100, the first connecting arm 222 and the second connecting arm 223 first extend into the insulating body 100 until the two contact portions 220a extend into the slot 110, and the fixing portion 221 abuts along the second direction Y In the insulating body 100 , the penetration depth of the grounding terminal 220 is limited. At this time, the protrusions 221c press against the insulating body 100 in the second direction Y, and the welding portion 221a is exposed outside the insulating body 100 .

Preferably, the ground terminal 220 and the signal terminal 210 are cut from a metal plate. During assembly, the ground terminals 220 and the signal terminals 210 are arranged in a row along the first direction X. Along the first direction X, the ground terminal 220 has a first side and a second side opposite to each other, the surfaces of the fixing portion 221 , the first connecting arm 222 and the second connecting arm 223 on the first side are on the same plane, and the fixing portion 221 , The surfaces of the first connecting arm 222 and the second connecting arm 223 on the second side are on the same plane. The blanking surfaces of conventional signal terminals and ground terminals are parallel, that is, the blanking surfaces are perpendicular to the second direction Y in this application; and in this application, the blanking surfaces of the ground terminals 220 are parallel to the signal terminals 210 The punched surface of the signal terminal 210 is perpendicular to the second direction Y, and the punched surface of the ground terminal 220 is perpendicular to the first direction X, so the projected length of the ground terminal 220 in the first direction X is the metal The thickness of the plate, compared with the conventional ground terminal, the projection length of the ground terminal 220 of the present application in the first direction X is shorter, so that the two ground terminals 220 can be welded on the same second pad 22, so that the When two pairs of adjacent signal terminals 210 are at the same distance, more ground terminals 220 may be provided. It should be noted that the blanking surface is the side of the sheet metal that faces the blanking die during processing.

Preferably, the ground terminal 220 further includes an elastic arm 224, and the elastic arm 224 is used to abut against the other ground terminal 220 to form a conductive path. In a specific embodiment, the number of the elastic arms 224 on the ground terminal 220 is two, the two elastic arms 224 are respectively disposed on the first connecting arm 222 and the second connecting arm 223 , and the elastic arms 224 are formed by the first connecting arm 222 and the second connecting arm 223 respectively. The second connecting arm 223 is punctured in a "U" shape along the first direction X and then torn and formed, and the top of the "U" shape is still integrally connected to the ground terminal 220, and the bottom of the "U" shape is bent in the X and Y directions. so as to contact the other ground terminal 220 . Preferably, in order to unify production specifications and save costs, the elastic arms 224 of the ground terminals 220 in the same row are bent in the same direction, but not all the elastic arms 224 must abut against another ground terminal 220 . It should be noted that this application does not limit the specific shape and quantity of the elastic arms 224. In other embodiments of the application, the elastic arms 224 may be rectangular or semicircular, and the number of elastic arms may be one. 3, etc., please refer to FIG. 8. FIG. 8 shows a three-dimensional schematic diagram of a grounding terminal according to another embodiment of the present application. At this time, there is only one elastic arm 224, and is formed by the connection between the first connecting arm 222 and the second connecting arm 223. The gap is formed by puncturing, and the elastic arm 224 is bent close to the circuit board 20 ; so that the elastic arm 224 can realize the electrical connection between two adjacent ground terminals 220 .

Preferably, in the ground terminal group, one or more elastic arms 224 on one ground terminal 220 abut against the other ground terminal 220 . Whether to establish a conductive path through the elastic arm 224 can be selected between two adjacent ground terminal groups according to the size of the adjustment distance. The "U"-shaped elastic arm 224 extends along the third direction Z and the opening of the "U" is located at the end of the elastic arm 224 away from the circuit board 20. At this time, along the third direction Z from the electronic device 2 to the circuit board 20, the elastic The projected length of the arm 224 in the first direction X gradually increases, so as to facilitate the installation of the ground terminal 220 on the insulating body 100 . The elastic arm 224 is inclined relative to the ground terminal 220 , so that between two adjacent ground terminals 220 , the elastic arm 224 of one ground terminal 220 is electrically connected to the other ground terminal 220 , thereby increasing the return path of resonance on the ground terminal 220 . Specifically, after the resonance enters the grounding terminal 220 from the contact portion 220a, it can either return to the circuit board 20 from the fixing portion 221 of the grounding terminal 220, or return to the circuit board 20 from the fixing portion 221 of the adjacent grounding terminal 220 through the elastic arm 224. The circuit board 20 can prevent the resonance from returning to the circuit board 20 when the soldering portion 221 a of the ground terminal 220 is not in good contact with the circuit board 20 . On the other hand, the elastic arm 224 increases the return path of the resonance, and the shielding effect is better.

Preferably, there are two elastic arms 224, which are respectively disposed at the root of the first connecting arm 222 and the root of the second connecting arm 223, and the root of the first connecting arm 222 and the root of the second connecting arm 223 are longer than the two connecting arms. Other parts are thicker. That is to say, in the second direction Y, the projected width of the root of the first connecting arm 222 is wider than other parts of the first connecting arm 222 , and the projected width of the root of the second connecting arm 223 is wider than that of the second connecting arm 223 The other parts are wider to ensure that the two connecting arms can still maintain high structural strength after the elastic arms 224 are formed by puncturing. It should be noted that, in this application, the root of the first connecting arm 222 refers to the side of the first connecting arm 222 that is close to the fixing portion 221 , and the root of the second connecting arm 223 refers to the second connecting arm 223 that is close to the fixing portion 221 . part 221 on one side.

Preferably, the connector 10 further includes a fixing member 300 , please refer to FIG. 9 . FIG. 9 shows a schematic perspective view of the fixing member according to the embodiment of the present application, in conjunction with FIG. 2 . The fixing member 300 includes a first connecting portion 310 and a second connecting portion 320. The first connecting portion 310 extends along the third direction Z and is disposed close to the terminal module 200. The first connecting portion 310 is provided with a buckle 311, which is used for the buckle 311. It is clamped and fixed to the insulating body 100 . The second connecting portion 320 extends along the first direction X and is located on the side of the first connecting portion 310 away from the terminal module 200 . The second connecting portion 320 is used for soldering to the circuit board 20 . The number of the fixing pieces 300 is two. The two fixing pieces 300 are mirrored on both ends of the connector 10 in the first direction X. The fixing pieces 300 are used to strengthen the connection between the insulating body 100 and the circuit board 20 . The design of 300 plays a role in enclosing and protecting the terminal module 200. Compared with the signal terminal 210 and the ground terminal 220, the fixing part 221 and the circuit board 20 have a larger welding area, which can reduce the load when the connector 10 is subjected to external force. The probability of desoldering of the small signal terminal 210 and the ground terminal 220. It should be noted that the present application does not limit the fixing method of the first connecting portion 310 and the insulating body 100. In other embodiments of the present application, the first connecting portion 310 may also be fixed to the insulating body by riveting or screwing. on the body 100 .

Preferably, the insulating body 100 is provided with positioning posts (not shown) on the side of the insulating body 100 close to the circuit board 20 along the third direction Z. The number of the positioning posts is two and is arranged at intervals along the first direction X. In the direction Z, the projection of one positioning column is located inside the projection of the positioning portion 111 , and the projection of the other positioning column is located at the projection of the fixing member 300 , thereby improving the space utilization of the connector 10 . The circuit board 20 is provided with a positioning hole 23 adapted to the positioning post, and the positioning post is inserted into the positioning hole 23 to align the terminal module 200 with the first pad 21 and the second pad 22 on the circuit board 20 . It should be noted that this application does not limit the number of positioning columns and the distribution positions of the positioning columns. In other embodiments of this application, the number of positioning columns may be 1, 3, etc. When the number of positioning columns is When there is one locating post, a foolproof surface needs to be designed, and a plurality of locating posts can be arranged on the insulating body 100 at intervals along the first direction X or in a matrix arrangement.

Preferably, along the first direction X, the projection of the signal terminal 210 on the ground terminal 220 accounts for more than 80% of the projection. This design is conducive to the ground terminal 220 conducting the resonance generated by the signal terminal 210 .

The ground terminal 220 in the embodiment of the present application is provided with two contact portions 220a, which increases the return path of the ground terminal 220, thereby improving the shielding effect of resonance. Moreover, the punched surface of the ground terminal 220 of the present application is perpendicular to the first direction X, and the projected length of the main body portion in the first direction X is the thickness of the metal plate. The thickness of the terminals 220 in the first direction X is smaller, so that under the same interval, each pair of signal terminals 210 can be directly provided with more ground terminals 220, thereby increasing the number of ground terminals 220, thereby increasing the return of resonance Therefore, the transmission quality and reliability of the high-speed signal of the connector 10 are improved.

Based on the same inventive concept, the present application also provides a connector for plugging and mating with an external electronic device 2, including the above-mentioned connector 10. Since the above-mentioned connector 10 is included, the connector can also increase the resonance in the The return path of the ground terminal 220, thereby improving the shielding effect of the resonance.

Based on the same inventive concept, the present application also provides an electronic device, including the above-mentioned connector module 1 . Since the above-mentioned connector module 1 is included, the electronic device can also increase the return path resonating at the ground terminal 220 , thereby Improve the shielding effect of resonance, thereby improving the transmission quality and reliability of high-speed signals of electronic equipment. It can be understood that, in other embodiments of the present application, the electronic device may only include the above-mentioned connector 10, which still has the above-mentioned effects.

It should be noted that preferred embodiments of the present application are given in the description of the present application and the accompanying drawings. However, the present application can be implemented in many different forms, and is not limited to the embodiments described in the present specification. These embodiments are not intended as additional limitations to the content of the present application, and are provided for the purpose of making the understanding of the disclosure of the present application more thorough and complete. In addition, the above technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the present application; further, for those of ordinary skill in the art, they can be improved or transformed according to the above description. , and all these improvements and transformations should belong to the protection scope of the appended claims of this application.

Claims (14)

1. A connector for mating with an external electronic device, comprising:

the insulating body is provided with a slot which is used for being in plug-in fit with the electronic device; and

the terminal module comprises a plurality of pairs of signal terminals and a plurality of grounding terminals, wherein the signal terminals at least partially extend into the slot, the signal terminals and the grounding terminals are arranged along a first direction, the grounding terminals are provided with at least two contact parts, and the contact parts are used for being electrically connected with golden fingers on the electronic device when the connector is in plug-in fit with the electronic device.

2. The connector of claim 1, wherein the ground terminal comprises:

the fixing part is fixed with the insulating body;

the first connecting arm extends from the fixing part and is provided with the contact part extending into the slot; and

the second connecting arm extends from the fixing part to form, and the second connecting arm is provided with a contact part extending into the slot.

3. The connector of claim 2, wherein in the first direction, the ground terminal has a first side and a second side opposite to each other, and surfaces of the fixing portion, the first connecting arm and the second connecting arm on the first side are on a same plane, and surfaces of the fixing portion, the first connecting arm and the second connecting arm on the second side are on a same plane.

4. The connector of claim 3, wherein the second connecting arm is located on a side of the first connecting arm facing away from the socket, a side of the first connecting arm and a side of the second connecting arm facing away from the fixing portion are bent toward the socket, one of the contact portions is located on a side of the first connecting arm facing away from the fixing portion, the other of the contact portions is located on a side of the second connecting arm facing away from the fixing portion, and the two contact portions extend into the socket to the same depth;

wherein a degree of curvature of the second connecting arm is greater than a degree of curvature of the first connecting arm.

5. The connector of claim 2, wherein the ground terminal blanking surface is perpendicular to the signal terminal blanking surface.

6. The connector according to any one of claims 3 or 5, wherein the ground terminal further comprises a resilient arm;

the elastic arm is obliquely arranged relative to the grounding terminals, and the elastic arm of one grounding terminal is electrically connected with the other grounding terminal between two adjacent grounding terminals.

7. The connector of claim 6, wherein the number of the resilient arms is at least two, at least one of the resilient arms is disposed on the first connecting arm, and at least one of the resilient arms is disposed on the second connecting arm.

8. The connector of claim 7,

every two adjacent ground terminals are contacted through the elastic arm to form a ground terminal group;

the set of ground terminals is adjacent to at least one signal terminal.

9. The connector according to any one of claims 3 or 5, wherein the connector comprises two terminal modules, and the two terminal modules are oppositely arranged on two sides of the slot along the second direction.

10. The connector of claim 9,

there are at least two adjacent sets of ground terminals.

11. A connector module, comprising:

the connector of any one of claims 1 to 10; and

the circuit board is provided with a first bonding pad and a second bonding pad, each signal terminal is correspondingly welded to one first bonding pad, and the grounding terminal is correspondingly welded to the second bonding pad.

12. The connector module of claim 11,

every two adjacent ground terminals are welded on the same second bonding pad, and the size of the first bonding pad is the same as that of the second bonding pad.

13. The connector module of claim 12, wherein the connector further comprises a fastener, the fastener comprising:

the first connecting part is fixed on the insulating body; and

and the second connecting part is welded on the circuit board.

14. An electronic device, comprising:

the connector module of any one of claims 11-13;

or comprising a connector according to any of claims 1-10.

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