An electrical connector and electronic device

Abstract

The application discloses an electric connector and an electronic device. The electric connector is used for being mounted to a circuit board and comprises a shell, the shell comprising a ring wall used for being erected to the circuit board and surrounding a receiving cavity, a plurality of conductive terminals, one end of each of the conductive terminals being fixedly arranged in the receiving cavity, and the other end of each of the conductive terminals being arranged through a first end of the ring wall in an axial direction and used for being fixedly connected to the circuit board. The shell further comprises a limiting part at a second end of the ring wall in the axial direction, the limiting part protruding from a side surface of the ring wall facing the circuit board and used for limiting movement of the second end in a direction close to the circuit board. The electric connector has the advantage of being more stable after being mounted to the circuit board.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of electronics, and particularly relates to an electric connector and an electronic device. BACKGROUND

[0002] With the development of electronic technology, electronic devices such as mobile phones and tablet computers have become an indispensable part of people's daily life and work. Among them, the electric connector, as a functional port or connector of the electronic device, is mainly used for charging or data transmission.

[0003] In the related art, the electric connector usually includes a conductive terminal for charging and a shell for protecting and mounting the conductive terminal. The shell of the electric connector is arranged on the circuit board of the electronic device, and when the electronic device is subjected to impact or falling, the shell of the electronic device is prone to collapse towards the direction close to the circuit board, thereby causing damage to the electric connector or misalignment of the electric connector and the corresponding hole of the electronic device. SUMMARY

[0004] The electric connector and the electronic device provided by the embodiments of the present application can improve the strength of the electric connector.

[0005] In a first aspect, the embodiments of the present application provide an electric connector for mounting to a circuit board, comprising:

[0006] a shell, the shell comprising a ring wall surrounding to form a receiving cavity, the ring wall being arranged on the circuit board; and

[0007] a plurality of conductive terminals, one end of each of the conductive terminals being fixedly arranged in the receiving cavity, and the other end of each of the conductive terminals being arranged through a first end of the ring wall in the axial direction for fixed connection to the circuit board;

[0008] The shell further comprises a limiting portion at a second end of the ring wall in the axial direction, the limiting portion protruding from a side surface of the ring wall facing the circuit board to limit movement of the second end towards the direction close to the circuit board.

[0009] Optionally, the second end of the ring wall surrounds to form a plug-in hole communicating with the receiving cavity.

[0010] The shell further comprises a bending portion, one end of the bending portion being integrally formed at an orifice end surface of the plug-in hole, and the other end of the bending portion being integrally formed with the limiting portion.

[0011] Optionally, the limiting portion is arranged spaced apart from the ring wall.

[0012] Optionally, a first protruding portion is protrudingly arranged on the side surface of the limiting portion away from the ring wall.

[0013] Optionally, the shell further comprises:

[0014] a baffle, the baffle is arranged on a side of the ring wall away from the second end;

[0015] two first support feet, one first support foot is arranged at each end of the baffle along a first direction, the first support feet are used for being welded to the circuit board, the first direction is perpendicular to a direction of the first end towards the second end, the first direction is perpendicular to a direction of the ring wall towards the circuit board;

[0016] two second support feet, one second support foot is arranged at each side of the first end along the first direction, the second support feet are used for being welded to the circuit board; and

[0017] two third support feet, one third support foot is arranged at each side of the second end along the first direction, the third support feet are used for being welded to the circuit board;

[0018] wherein the limiting part is located between the two third support feet.

[0019] Optionally, the electric connector further comprises a middle shell, the middle shell is at least partially accommodated in the accommodating cavity, the middle shell seals at least part of the gap of the surface of the ring wall;

[0020] wherein at least one of a side of the middle shell towards the circuit board and a side of the middle shell away from the circuit board is laser welded and fixed with the ring wall.

[0021] Optionally, a plurality of first laser welding points are arranged on the side of the middle shell towards the circuit board, the shell is laser welded and fixed with the first laser welding points, the limiting part is dislocated with the first laser welding points in the orthographic projection of the ring wall.

[0022] Optionally, a plurality of first laser welding points are arranged on the side of the middle shell towards the circuit board, the shell is laser welded and fixed with the first laser welding points, the limiting part is dislocated with the first laser welding points in the orthographic projection of the ring wall.

[0023] Optionally, the electric connector further comprises an insulator, the insulator is at least partially mounted in the middle shell, all the conductive terminals are fixed to the insulator in mutual insulation;

[0024] wherein the insulator is provided with a first metal sheet, the first metal sheet is laser welded and fixed with the middle shell.

[0025] In a second aspect, the embodiments of the present application further provide an electronic device, comprising the electric connector according to any one of the above and a circuit board carrying the electric connector.

[0026] In the embodiment of the present application, when the ring wall is erected on the circuit board, the limiting portion can limit and support the side surface of the second end of the ring wall towards the circuit board, and the conductive terminal can support and fix the first end of the ring wall to some extent, so that the ring wall can be more stably erected on the circuit board, so as to make the ring wall less likely to collapse towards the direction close to the circuit board when the electronic device falls or is impacted, and thus make the electrical connector and the electronic device more reliable. BRIEF DESCRIPTION OF DRAWINGS

[0027] The technical solutions of the present application and the beneficial effects thereof will become apparent through the following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings.

[0028] Figure 1 The structural schematic diagram of the electrical connector and the circuit board provided in the embodiment of the present application.

[0029] Figure 2 The structural schematic diagram of the electrical connector and the circuit board provided in the embodiment of the present application. Figure 1 The sectional view of the electrical connector and the circuit board shown in FIG. 1 along the A-A direction.

[0030] Figure 3 The sectional view of the electrical connector and the circuit board shown in FIG. 1 along the A-A direction. Figure 1 The perspective view of the electrical connector shown in FIG. 1.

[0031] Figure 4 The perspective view of the electrical connector shown in FIG. 1. Figure 3 The perspective view of the electrical connector shown in FIG. 1 from another angle. The perspective view of the electrical connector shown in FIG. 1 from another angle.

[0032] The perspective view of the electrical connector shown in FIG. 1 from another angle. Figure 5 The exploded view of the electrical connector shown in FIG. 1. Figure 3 The exploded view of the electrical connector shown in FIG. 1. DETAILED DESCRIPTION

[0033] The technical solutions of the present application and the beneficial effects thereof will become apparent through the following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings.

[0034] The technical solutions of the present application and the beneficial effects thereof will become apparent through the following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings. Figure 1 , Figure 1The structural schematic diagram of the electric connector and the circuit board provided by the embodiment of the present application is shown. The embodiment of the present application provides an electric connector 100, which can be arranged in an electronic device such as a mobile phone, a computer or a smart watch. Specifically, the electronic device can further include a circuit board 200, which is used to carry the electric connector 100, so that the electric connector 100 can be used as a charging interface or a data interface of the electronic device. Of course, the electric connector 100 can also be used as a charging interface and a data interface at the same time, which is not limited by the embodiment of the present application. Taking the electric connector 100 as a USB (Universal Serial Bus) socket as an example, the electric connector 100 can be a TYPE-A socket, a TYPE-B socket, a TYPE Micro-B socket or a TYPE-C socket, which is not limited by the embodiment of the present application.

[0035] Please continue to refer to Figure 2 , Figure 2 for Figure 1 The cross-sectional view of the electric connector and the circuit board shown in the embodiment of the present application along the A-A direction is shown. The electric connector 100 can include a shell 11 and a plurality of conductive terminals 12. The shell 11 includes a ring wall 111 which is arranged to form a receiving cavity 119. The ring wall 111 is used to be arranged to the circuit board 200, so that a gap is formed between the ring wall 111 and the circuit board 200. One end of each conductive terminal 12 is fixedly arranged in the receiving cavity 119, and the conductive terminal 12 can be protected by the ring wall 111. The other end of each conductive terminal 12 is arranged through the first end of the ring wall 111 in the axial direction, so as to protrude out of the receiving cavity 119 and be fixedly connected to the circuit board 200. Therefore, on the one hand, the connection and fixation of the conductive terminal 12 and the circuit board 200 can provide support for the first end of the ring wall 111; on the other hand, the conductive terminal 12 can also realize electrical connection with the circuit board 200 to transmit current or transmit data, so that the plug of the external device can be inserted into the receiving cavity 119 and contact the conductive terminal 12 to form electrical connection, so as to realize current transmission or data transmission between the external device and the electronic device provided by the embodiment of the present application.

[0036] The ring wall 111 and the circuit board 200 are arranged in a spaced manner, which can also be understood as that the ring wall 111 is arranged to be suspended on the upper side of the circuit board 200. When the electronic device falls or is impacted, if the second end of the ring wall 111 lacks support between the second end and the circuit board 200, the second end is easy to displace towards the circuit board 200, thereby causing the ring wall 111 and the corresponding hole position on the surface of the electronic device to be misaligned, so that the plug of the external device cannot be inserted into the receiving cavity 119, and the part of the conductive terminal 12 between the first end and the circuit board 200 can also be damaged.

[0037] Based on this, the shell 11 can also include a limiting portion 112 located at the second end. The limiting portion 112 protrudes from the side surface of the ring wall 111 towards the circuit board 200 to limit the movement of the second end towards the circuit board 200. It can be understood that the limiting portion 112 can abut against the circuit board 200 to limit the movement of the second end towards the circuit board 200; the limiting portion 112 can also have a certain gap with the circuit board 200 to abut against the circuit board 200 after the second end moves a certain distance towards the circuit board 200, and the present application does not limit this. Further, by providing the limiting portion 112 to support the side surface of the second end of the ring wall 111 towards the circuit board 200, the probability of damage to the electrical connector 100 is reduced, and the reliability of the electrical connector 100 and the electronic device is ultimately improved.

[0038] The connection mode of the limiting portion 112 and the ring wall 111 can be various. For example, the limiting portion 112 can be integrally formed with the ring wall 111. Alternatively, the limiting portion 112 can be fixed on the ring wall 111 by welding, bonding or the like, and the present application does not limit this.

[0039] Taking the example of integrally forming the limiting portion 112 and the ring wall 111, the second end of the ring wall 111 is surrounded to form a plug-in hole communicating with the accommodating cavity 119. At this time, the shell 11 also includes a bending portion 113, one end of the bending portion 113 is integrally formed on the hole opening end surface of the plug-in hole, and the other end of the bending portion 113 is integrally formed with the limiting portion 112. It can be understood that the integrally formed mode can improve the connection strength of the limiting portion 112, the ring wall 111 and the bending portion 113, so that the overall structural strength of the electrical connector 100 is higher.

[0040] For example, the shell 11 can be a sheet metal part integrally formed by sheet metal process. Specifically, a flat sheet metal part raw material can be formed into a first intermediate sheet metal part by punching and blanking, laser cutting or the like, at this time, the first intermediate sheet metal part can include a main portion for forming the ring wall 111 and a strip-shaped portion protruding from one side of the main portion, then the main portion is bent to form the ring wall 111 and the strip-shaped portion is bent to form the bending portion 113 and the limiting portion 112.

[0041] In one aspect, compared with assembling the independent limiting portion 112 and the ring wall 111 by welding or the like in a subsequent independent process, the embodiment of the present application bends the limiting portion 112 in the same process of bending the ring wall 111, which can reduce the process steps of manufacturing the electrical connector 100, improve the production efficiency of the electrical connector 100, and reduce the manufacturing cost of the electrical connector 100. On the other hand, compared with bending a part originally belonging to the ring wall 111 to form the bending portion 113 and the limiting portion 112 after cutting a slit on the side of the ring wall 111 facing the circuit board 200, in the embodiment of the present application, the bending portion 113 and the limiting portion 112 are strip-shaped portions extending from the orifice end face and are bent into shape, so that the electrical connector 100 of the embodiment of the present application can reduce the surface breakage of the ring wall 111 to reduce the probability of damage to the conductive terminal caused by external objects or liquids entering the accommodation cavity 119, and can also improve the strength of the ring wall 111.

[0042] In some embodiments, the limiting portion 112 and the ring wall 111 can be spaced apart. It can be understood that when the limiting portion 112 and the bending portion 113 are integrally formed by sheet metal processing, the thickness of the limiting portion 112 is small due to the general thinness of the sheet metal part. Then, when the distance between the ring wall 111 and the circuit board 200 is large, the limiting portion 112 can be difficult to abut on one side on the ring wall 111 and on the other side on the circuit board 200. At this time, the strength of the sheet metal part itself can ensure that the limiting portion 112 is spaced apart in a relatively stable state on the side of the ring wall 111 facing the circuit board 200, and the limiting portion 112 abuts on the circuit board 200 as much as possible, so that the limiting portion 112 can provide better support for the second end of the ring wall 111 when the electrical connector 100 falls or is subjected to impact, thereby improving the strength of the electrical connector 100. Of course, due to the certain gap between the limiting portion 112 and the ring wall 111 and the thinness of the sheet metal part, the bending portion 113 has a certain elastic deformation capacity, and when the electrical connector 100 falls or is subjected to strong impact, the limiting portion 112 and the ring wall 111 can be deformed to reduce the distance between the limiting portion 112 and the ring wall 111 to a small extent to provide a certain buffering effect, thereby avoiding damage to the circuit board 200 and / or the ring wall 111 by the limiting portion 112.

[0043] Of course, in some other embodiments, the limiting portion 112 can also be attached to the ring wall 111, which is not limited in the embodiment of the present application.

[0044] The limiting portion 112 can be configured to abut to the surface of the circuit board 200, and the limiting portion 112 can provide support for the second end of the ring wall 111 in real time.

[0045] Optionally, the limiting portion 112 can be configured to have a gap with the circuit board 200, and the gap between the limiting portion 112 and the circuit board 200 is less than or equal to 0.05 mm. It can be understood that in actual operation, due to factors such as manufacturing tolerance and assembly tolerance, the actual gap between the limiting portion 112 and the circuit board 200 may not be consistent with the ideal state. At this time, the gap of less than or equal to 0.05 mm between the limiting portion 112 and the circuit board 200 is pre-set, which can avoid the limiting portion 112 crushing the circuit board 200 or the ring wall 111 being lifted by the limiting portion 112 to the corresponding space error of the electronic device due to factors such as assembly tolerance or manufacturing tolerance.

[0046] In addition, the surface of the circuit board 200 can be provided with a pad, a plating layer or a coating layer, etc.; at this time, the gap of less than or equal to 0.05 mm between the limiting portion 112 and the circuit board 200 is pre-set, which can avoid the ring wall 111 being dislocated or the circuit board 200 being crushed due to the pad, plating layer or coating layer on the surface of the circuit board 200 being in contact with the limiting portion 112.

[0047] In some embodiments, the limiting portion 112 is provided with a first protruding portion 1121 on the side surface away from the ring wall 111, so as to increase the overall thickness of the limiting portion 112. Further, when the limiting portion 112 is thin and has a large gap with the circuit board 200, the limiting portion 112 can also better abut on the circuit board 200 through the first protruding portion 1121 to provide support.

[0048] Specifically, the first protruding portion 1121 can be a convex bump integrally formed on the limiting portion 112 by sheet metal processes such as drawing and stamping. Optionally, the first convex bump can also be fixed on the limiting portion 112 by welding, bonding or the like, and the embodiments of the present application do not limit this.

[0049] Please continue to refer to Figure 3 and Figure 4 , Figure 3 is a perspective view of the electrical connector shown in Figure 1 is a perspective view of the electrical connector shown in Figure 4 is a perspective view of the electrical connector shown in Figure 3 In some embodiments, the end portion of at least part of the conductive terminal 12 located outside the accommodating cavity 119 can be used for welding to the side surface of the circuit board 200 facing the ring wall 111.

[0050] For example, the conductive terminals 12 can include first conductive terminals 121. The end portions of the first conductive terminals 121 outside the accommodating cavity 119 can be bent to be parallel to the axial direction of the ring wall 111, and then the end portions of the first conductive terminals 121 outside the accommodating cavity 119 can be fixed to the surface of the circuit board 200 by SMT (Surface Mounted Technology). Specifically, the end portions of the first conductive terminals 121 outside the accommodating cavity 119 can be fixed to the surface of the circuit board 200 facing the ring wall 111 by reflow soldering. At this time, the gap between the ring wall 111 and the circuit board 200 can be used to accommodate the soldered end portions of the first conductive terminals 121 and the solder paste attached to the end portions.

[0051] The number of the first conductive terminals 121 can be one or multiple, such as two, three, or four, etc. For example, when the electric connector 100 is a TYPE-C socket, the number of the first conductive terminals 121 can be twelve, and among the twelve first conductive terminals 121, some can be used for grounding, some can be used for transmitting data, and some can be used for transmitting current, etc. The embodiments of the present application do not limit this.

[0052] In some embodiments, the end portions of at least part of the conductive terminals 12 outside the accommodating cavity 119 can be used to penetrate the circuit board 200 and then be fixed to the circuit board 200 by soldering.

[0053] For example, the conductive terminals 12 can include second conductive terminals 122, and the end portions of the second conductive terminals 122 outside the accommodating cavity 119 can be perpendicular to the surface of the circuit board 200 facing the ring wall 111. Then, the end portions of the second conductive terminals 122 outside the accommodating cavity 119 can penetrate the circuit board 200 in the form of a plug and then be fixed to the circuit board 200 by wave soldering.

[0054] The number of the second conductive terminals 122 can be one or multiple, such as two, three, or four, etc. For example, when the electric connector 100 is a TYPE-C socket, the number of the second conductive terminals 122 can be twelve, and among the twelve second conductive terminals 122, some can be used for grounding, some can be used for transmitting data, and some can be used for transmitting current, etc. The embodiments of the present application do not limit this.

[0055] It can also be understood that in actual use, the conductive terminals 12 can only include the first conductive terminals 121 described above, can only include the second conductive terminals 122 described above, or can include both the first conductive terminals 121 and the second conductive terminals 122 described above. The embodiments of the present application do not limit this.

[0056] In some embodiments, the shell 11 can further include a baffle 114. The baffle 114 is arranged on the side of the ring wall 111 away from the second end. The baffle 114 is provided with a first supporting leg 115 for welding to the circuit board 200 at each end in the first direction. The first direction is perpendicular to the axial direction of the ring wall 111, and the first direction is perpendicular to the direction of the ring wall 111 towards the circuit board 200. In turn, by arranging two first supporting legs 115 on the baffle 114 for welding to the circuit board 200, the first end of the ring wall 111 can be more stably mounted.

[0057] The direction of the ring wall 111 towards the circuit board 200 can be a vertical direction, the axial direction of the ring wall 111 can be a left-right direction, and the first direction can be a front-back direction. When the position state of the electronic device changes, the direction of the ring wall 111 towards the circuit board 200, the axial direction of the ring wall 111, and the first direction can be interchangeable, such as the first direction being a vertical direction, the direction of the ring wall 111 towards the circuit board 200 being a front-back direction, and the axial direction of the ring wall 111 being a left-right direction. The embodiments of the present application do not limit this.

[0058] Specifically, the first supporting leg 115 can be welded to the side of the circuit board 200 facing the ring wall 111 by reflow soldering, or the first supporting leg 115 can be welded to the side of the circuit board 200 away from the ring wall 111 by wave soldering. The embodiments of the present application do not limit this.

[0059] It can also be understood that the baffle 114, the first supporting leg 115, and the ring wall 111 can be integrally formed by sheet metal processing to improve the overall strength of the shell 11. Specifically, the ring wall 111 can include a bottom wall 1111 facing the circuit board 200, a top wall 1112 away from the circuit board 200, and a side wall 1113 connecting the end portions of the same side of the bottom wall 1111 and the top wall 1112. The baffle 114 can be bent from the top wall 1112 towards the direction close to the circuit board 200.

[0060] In order to make the baffle 114 more stable after bending, the side wall 1113 can be provided with a first elastic sheet 1114 protruding towards the outside of the accommodating cavity 119, and the baffle 114 can extend a first clamping arm 116 clamped to the first elastic sheet 1114.

[0061] The shell 11 can further include two second supporting legs 117, one second supporting leg 117 being arranged on each side of the first end of the ring wall 111 in the first direction, and the second supporting leg 117 being used for welding to the circuit board 200. In turn, by arranging two second supporting legs 117 welded to the circuit board 200, the mounting strength of the first end of the shell 11 can be effectively improved.

[0062] Specifically, the second support leg 117 can be welded on the side of the circuit board 200 facing the ring wall 111 by reflow soldering, or the second support leg 117 can be welded and fixed on the side of the circuit board 200 away from the ring wall 111 by wave soldering after penetrating the circuit board 200, and the embodiments of the present application do not limit this.

[0063] In some embodiments, the first end of the ring wall 111 can be formed with a mounting hole 1115 on the side facing the circuit board 200, so that one end of the conductive terminal 12 can pass out of the mounting hole 1115 from the accommodation cavity 119. At this time, the second support leg 117 can be formed by extending from the side wall 1113 of the first end of the ring wall 111 in a direction away from the top wall 1112 (or understood as close to the circuit board 200). Specifically, the second support leg 117 and the ring wall 111 can be integrally formed by sheet metal processing, thereby improving the strength of the second support leg 117.

[0064] The shell 11 can also include two third support legs 118. One third support leg 118 is arranged on each side of the second end along the first direction, and the third support leg 118 is used for welding to the circuit board 200. In turn, by arranging two third support legs 118 welded and fixed to the circuit board 200, the installation of the second end of the ring wall 111 can be more stable.

[0065] Specifically, the third support leg 118 can be welded on the side of the circuit board 200 facing the ring wall 111 by reflow soldering, or the third support leg 118 can be welded and fixed on the side of the circuit board 200 away from the ring wall 111 by wave soldering after penetrating the circuit board 200, and the embodiments of the present application do not limit this.

[0066] The limiting portion 112 can be located between the two third support legs 118, so that the support force received by each part of the second end along the first direction can be more uniform and reasonable.

[0067] It can be understood that the shell 11 can only include the first support leg 115; the shell 11 can only include the second support leg 117 or the third support; the shell 11 can also include the first support leg 115, the second support leg 117 and the third support leg 118, thereby uniformly providing support force to each part of the first end of the ring wall 111 to make the first end of the ring wall 111 more stable. At the same time, the third support leg 118 and the limiting portion 112 provide support from multiple positions of the second end of the ring wall 111, so that the second end of the ring wall 111 is more stable. Finally, by supporting the first end and the second end of the ring wall 111, the support force received by each position of the ring wall 111 is more uniform, so that the ring wall 111 is more stable.

[0068] In some embodiments, the ring wall 111 can be provided with some openings to match and fix other components. In order to improve the waterproof and dustproof functions of the electrical connector 100, the electrical connector 100 can further include a middle shell 13. The middle shell 13 is at least partially accommodated in the accommodating cavity 119, and the middle shell 13 is used to block at least part of the openings on the surface of the ring wall 111. Of course, by providing the middle shell 13, the area of the ring wall 111 provided with the openings can also be reinforced, so that the ring wall 111 can better protect the components such as the conductive terminal 12 in the accommodating cavity 119.

[0069] The middle shell 13 can be a through-cylinder structure, and the middle shell 13 is arranged in the plug-in hole, so that the outer surface of one end of the middle shell 13 is attached to the inner surface of the ring wall 111, and the other end of the middle shell 13 can extend out of the accommodating cavity 119.

[0070] In order to improve the stability of the installation of the middle shell 13, the side of the middle shell 13 away from the circuit board 200 can be laser welded and fixed with the ring wall 111. It can be understood that, compared with bonding and fixing and the like, laser welding can better ensure the stability of the connection between the middle shell 13 and the ring wall 111, so that the electrical connector 100 is less likely to be damaged when falling or subjected to impact force.

[0071] At this time, the middle shell 13 can be made of metal as a whole, so that each position of the middle shell 13 can be laser welded with the shell 11. Alternatively, the middle shell 13 can also be provided with a second metal sheet in part, so that the middle shell 13 is welded and fixed with the ring wall 111 through the second metal sheet, and the embodiments of the present application do not limit this.

[0072] Taking the example that the middle shell 13 is made of metal as a whole, the side of the middle shell 13 away from the circuit board 200 can be provided with a plurality of second laser welding points (not shown in the figure), and the top wall 1112 of the ring wall 111 is provided with a plurality of third laser welding points 1116. The plurality of third laser welding points 1116 and the plurality of second laser welding points correspond to each other, so that the second laser welding points of the middle shell 13 can be laser welded and fixed with the corresponding third laser welding points 1116 of the top wall 1112.

[0073] In order to improve the stability of the installation of the middle shell 13, the side of the middle shell 13 facing the circuit board 200 can be laser welded and fixed with the shell 11. It can be understood that, compared with bonding and fixing and the like, laser welding can better ensure the stability of the connection between the middle shell 13 and the ring wall 111, so that the electrical connector 100 is less likely to be damaged when falling or subjected to impact force.

[0074] For example, the middle shell 13 is made of metal as a whole, the side of the middle shell 13 facing the circuit board 200 can be provided with a plurality of first laser welding points, and the bottom wall 1111 of the ring wall 111 is provided with a plurality of fourth laser welding points 1117, the plurality of first laser welding points and the plurality of fourth laser welding points 1117 correspond one by one, so that the second laser welding point of the middle shell 13 can be laser welded and fixed at the corresponding third laser welding point 1116 on the top wall 1112.

[0075] It can be understood that the middle shell 13 can be laser welded and fixed to the shell 11 only on the side facing the circuit board 200, or the middle shell 13 can be laser welded and fixed to the shell 11 only on the side away from the circuit board 200. Preferably, the middle shell 13 can also be laser welded and fixed to the shell 11 on the side facing the circuit board 200 and the side away from the circuit board 200, so that the connection between the middle shell 13 and the shell 11 is more firm, so that the electrical connector 100 is less likely to be damaged when falling or subjected to impact force.

[0076] In some embodiments, the limiting portion 112 is misaligned with the first laser welding point in the orthographic projection of the ring wall 111. It can be understood that, since the limiting portion 112 does not block the first laser welding point in the embodiments of the present application, the electrical connector of the embodiments of the present application can bend and form the limiting portion 112 at the same time as the ring wall 111 is bent and formed, and finally the middle shell 13 is assembled into the accommodating cavity 119 and welded and fixed. By contrast, if the limiting portion 112 blocks the first laser welding point, the ring wall 111 needs to be bent and formed first, then the middle shell 13 is assembled into the accommodating cavity 119 and welded and fixed, and finally the limiting portion 112 is bent and formed. It can be seen that the embodiments of the present application can reduce the process steps of manufacturing the electrical connector 100, thereby improving the production efficiency of the electrical connector 100 and reducing the manufacturing cost of the electrical connector 100.

[0077] In some embodiments, the surface of the ring wall 111 is formed with a joint seam 1118, and at least part of the orthographic projection of the joint seam 1118 is located in the first laser welding point.

[0078] For example, continuing to combine the above-mentioned ring wall 111 which is integrally formed by sheet metal process, the laser welding structure at the first laser welding point can weld and fix the middle shell 13 and the ring wall 111, and at the same time, the laser welding structure at the first laser welding point can also be reused to weld and fix the joint end of the ring wall 111; thereby, the electrical connector of the embodiments of the present application not only can improve the strength of the ring wall 111, but also can reduce the process steps of manufacturing the shell 11.

[0079] Please continue to refer to Figure 5 , Figure 5 To Figure 3An exploded view of the electrical connector is shown. The electrical connector 100 can further include an insulator 14. The insulator 14 is at least partially mounted in the middle shell 13 to form a plug cavity 131 with the inner wall of the middle shell 13. All the conductive terminals 12 are fixed to the insulator 14 to be insulated from each other, so that one end of the conductive terminals 12 can be located in the plug cavity 131. Further, the plug of an external device can be inserted into the plug cavity 131 to achieve electrical connection with the conductive terminals 12.

[0080] In order to make the insulator 14 more firmly mounted, the insulator 14 can be provided with a first metal sheet 141, and the metal sheet 141 is laser welded and fixed with the middle shell 13. Further, the connection between the middle shell 13 and the insulator 14 is more firm, so that the electrical connector 100 is less likely to be damaged when falling or subjected to impact force.

[0081] Specifically, the middle shell 13 can be laser welded and fixed with the insulator 14 only on the side facing the circuit board 200, or the middle shell 13 can be laser welded and fixed with the insulator 14 only on the side away from the circuit board 200. Alternatively, the middle shell 13 can be laser welded and fixed with the insulator 14 on both the side facing the circuit board 200 and the side away from the circuit board 200, so as to increase the laser welding area of the middle shell 13 and the insulator 14, and further make the connection between the middle shell 13 and the insulator 14 more stable, and finally make the overall strength of the electrical connector 100 higher.

[0082] In some embodiments, the insulator 14 can further include a fixed seat 142 and a tongue plate 143. The fixed seat 142 abuts against the inner wall of the middle shell 13 to close the opening of the middle shell 13 at one end located in the accommodating cavity 119. At this time, the metal sheet 141 is arranged on the outer circumferential side of the fixed seat 142 and is laser welded and fixed with the inner wall of the middle shell 13. The tongue plate 143 is arranged on the axial end face of the fixed seat 142, so that the inner wall of the middle shell 13, the tongue plate 143 and the fixed seat 142 form the plug cavity 131. The front and back surfaces of the tongue plate 143 are respectively fixed with a plurality of conductive terminals 12.

[0083] It can also be understood that the ring wall 111 can be provided with a welding through hole 1119 corresponding to the first metal sheet 141, so that the laser welding tool can pass through the welding through hole 1119 to weld and fix the middle shell 13 with the first metal sheet 141.

[0084] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0085] The above describes the electric connector 100 and the electronic tongue plate 143 provided by the embodiments of the present application in detail, the principles and implementation manners of the present application are described by applying specific examples in the present text, the above description of the embodiments is only used for helping to understand the method of the present application and the core idea thereof; meanwhile, for the person skilled in the art, according to the idea of the present application, the specific implementation manners and application ranges will have changes, and on the basis of the above, the content of the specification should not be understood as the limitation of the present application.

Claims

1. An electrical connector for mounting to a circuit board, characterized by, The electric connector comprises: a shell, which comprises a ring wall for being arranged on the circuit board, the ring wall being provided with a plug hole at a second end thereof for being arranged on the circuit board; a plurality of conductive terminals, each of which is arranged in the shell and has one end fixed in the shell and the other end arranged at a first end of the ring wall for being fixed to the circuit board; wherein the shell further comprises a limiting portion at the second end of the ring wall, the limiting portion protruding from a side surface of the ring wall facing the circuit board to limit the movement of the second end towards the circuit board; the shell further comprises a bending portion, one end of the bending portion being integrally formed at an orifice end surface of the plug hole, the other end of the bending portion being integrally formed with the limiting portion by sheet metal processing, the bending portion and the limiting portion being strip-shaped portions extending from the orifice end surface, the limiting portion being arranged apart from the ring wall, and the bending portion being flexible to provide buffering; a middle shell, which is at least partially arranged in the shell and seals at least part of the gap of the ring wall, the side of the middle shell facing the circuit board being fixed to the ring wall by laser welding, the side of the middle shell facing the circuit board being provided with a plurality of first laser welding points, the shell being fixed to the first laser welding points by laser welding, and the surface of the ring wall being provided with a joint seam, at least part of the projection of the joint seam being located in the first laser welding points; wherein the laser welding structure at the first laser welding points can be used to fix the middle shell and the ring wall, and the laser welding structure at the first laser welding points can also be used to fix the joint end of the ring wall. The side surface of the limiting portion away from the ring wall is provided with a first protruding portion.

2. The electrical connector of claim 1, wherein, The shell further comprises:

3. The electrical connector of claim 1, wherein, a baffle, which is arranged on the side of the ring wall away from the second end; two first supporting legs, one first supporting leg being arranged at each end of the baffle along a first direction, the first supporting leg being used for being welded to the circuit board, the first direction being perpendicular to the axial direction of the ring wall and perpendicular to the direction of the ring wall facing the circuit board; two second supporting legs, one second supporting leg being arranged at each side of the first end along the first direction, the second supporting leg being used for being welded to the circuit board; and two third supporting legs, one third supporting leg being arranged at each side of the second end along the first direction, the third supporting leg being used for being welded to the circuit board; wherein the limiting portion is located between the two third supporting legs. The side of the middle shell away from the circuit board is fixed to the ring wall by laser welding.

4. The electrical connector of any one of claims 1 to 3, wherein, The projection of the limiting portion on the ring wall is dislocated from the projection of the first laser welding points on the ring wall.

5. The electrical connector of claim 4, wherein, The electric connector further comprises an insulator, which is at least partially arranged in the middle shell, and all the conductive terminals are fixed to the insulator in an insulated manner; 6. The electrical connector of claim 4, wherein, wherein the insulator is provided with a first metal sheet, the first metal sheet being fixed to the middle shell by laser welding. ​ 7. An electronic device, comprising: An electrical connector as claimed in any one of claims 1 to 6 and a circuit board carrying the electrical connector.

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