CN113948891B - Socket connector, fastener body and fastener dismounting system of socket connector - Google Patents

Abstract

The application discloses socket connector, buckle body and buckle dismouting system thereof of socket connector. The socket connector comprises a shell, a terminal, a welding part and a buckle support; the fastener support is connected with the shell, and the bottom of the fastener support is provided with a welding point which is used for welding with the PCB. The annular housing has a hollow window in which the terminals are arranged. The solder connects the bottom of the terminal, also for soldering to the PCB. Because the buckle support is provided with the welding points, the PCB can be directly welded on the PCB during application, and the PCB does not need to be punched during the packaging of the socket connector, thereby saving the occupied area. The PCB has free high-speed wiring, does not need to additionally detour outgoing lines, and reduces the packaging cost. Compared with a traditional socket connector packaging mode, the socket connector provided by the application has a smaller packaging size and can be suitable for more application scenes. The dismounting mode of the socket connector and the buckle body is simple, the operation is convenient, and the dismounting efficiency can be improved.

Description

Socket connector, fastener body and fastener dismounting system of socket connector

Technical Field

The present disclosure relates to connector technologies, and particularly to a socket connector, a buckle body, and a buckle mounting and dismounting system of the socket connector.

Background

In recent years, the demand for interconnection bandwidth of data centers has increased rapidly, the capacity of switch chips has evolved continuously, and the requirement for the single channel speed has been gradually increased, and at the same time, higher requirements have been put forward on the packaging of optical modules. When an existing socket connector is packaged with a PCB, the socket connector and the PCB are fixed by screw locking by punching a Printed Circuit Board (PCB). The socket connector is arranged between the chip substrate and the PCB, and the socket connector is used as a bridge to realize the electrical connection and the signal transmission between the chip substrate and the PCB.

Punching the PCB inevitably increases the board footprint on the PCB. In addition, the PCB needs to be routed at high speed to bypass the hole site, the routing length is increased, and the number of layers of the occupied board can be increased. Therefore, the conventional socket connector package is expensive. In some scenarios where there are stringent space requirements for the size of the chip substrate or for the outgoing lines of On-board optical modules (On-board Optics), the use of receptacle connectors packaged in the manner described above is limited.

Disclosure of Invention

The application provides a socket connector, buckle body and buckle dismouting system of socket connector to save the board area, reduce the encapsulation cost, promote the suitability in the scene through the miniaturization of structure.

In a first aspect, the present application provides a receptacle connector. The receptacle connector includes: the connector comprises a shell, terminals, a welding piece and a buckle support; wherein, the buckle support is connected with the shell; the bottom of the fastener bracket is provided with a welding point which is used for welding with the printed circuit board PCB; the shell is annular and is provided with a hollow window, and the terminals are arranged in the hollow window; the solder connects the bottom of the terminal and is for soldering to the PCB. The number, size and shape of the welding points on the buckle support of the socket connector are not limited. For example: the welding point can be one or a plurality of welding points. The weld may be spherical or hemispherical. The buckle support is welded with the PCB at the welding point in a welding mode, so that the whole socket connector is stably connected with the PCB. Because the PCB does not need to be punched, the socket connector can be packaged to the PCB, and therefore, the occupied board area wasted in the PCB due to punching is saved. In addition, the routing in the PCB is more free. Therefore, the packaging cost of the socket connector is saved, and the applicability of the socket connector in various scenes is improved due to the smaller structural size.

In one possible implementation, the number of the welding points is multiple; and a plurality of welding points are welded on the PCB through the SMT.

In one possible implementation, the buckle holder includes: the first support and the second support respectively comprise a first part and a second part, and the first part is connected with the second part at a preset included angle; the first part of the first bracket and the first part of the second bracket are both connected with the shell; the housing is located between the first portion of the first bracket and the first portion of the second bracket; the second part of the first support and the second part of the second support are the bottoms of the fastener supports provided with welding points. Because the shell is connected with the first support and the second support, the reliability of the connection between the shell and the buckle support is guaranteed.

In a possible implementation manner, the first part of the first bracket and the first part of the second bracket are both provided with a buckle window; the buckle window is used for being matched and connected with the boss of the buckle body. The buckle window is matched with the boss, so that the connection reliability of the buckle body and the socket connector can be ensured.

In a possible implementation, the first portion of the first bracket and the first portion of the second bracket each include two support arms and a recess formed by the two support arms being semi-enclosed, each support arm being provided with at least one snap window.

In one possible implementation, the number of snap windows provided on each support arm is equal. Through set up the buckle window that quantity equals on every support arm, can balance stress, avoid producing the stress of sudden change to the local pad on PCB surface.

In one possible implementation, the solder feature is a solder ball.

In a second aspect, the present application provides a fastener body, wherein the socket connector provided in the first aspect is used in cooperation with the socket connector; the buckle body comprises a boss which is used for being matched and connected with the buckle window. The number of the bosses is not more than the number of the buckle windows, and the positions of the bosses correspond to the positions of the buckle windows. Optionally, the outer profile shape of the boss matches the profile shape of the snap window. For example, all are rectangular.

In one possible implementation, the buckle body includes: a first fastener assembly, a second fastener assembly and a third fastener assembly; the bottom of the first buckle assembly is used for being adhered to the upper surface of the chip substrate; the first buckle assembly comprises two convex arms and a first groove, and two side surfaces of the first groove are respectively the first side surfaces of the two convex arms; the first groove is used for embedding the optical module; the second side surfaces of the two convex arms are respectively provided with a first buckling part, and the length direction of each first buckling part is vertical to the extending direction of the first groove; the second fastener assembly and the third fastener assembly comprise a second buckling part; the length direction of each second buckling part is vertical to the extending direction; the second buckling part is used for being buckled and connected with the first buckling part in a one-to-one mode; the bosses are positioned on the second fastener assembly and the third fastener assembly; the direction of the boss entering the corresponding buckle window is vertical to the extending direction. All the bosses enter the corresponding buckle windows and are clamped by the corresponding buckle windows, and the buckle body can be stably and reliably connected with the socket connector.

In one possible implementation, the second sides of the two convex arms each comprise two convex regions and one concave region, the concave region being located between the two convex regions; the first buckling part is specifically arranged in the sunken area. Because the first buckling part is arranged in the concave area, the space occupied by the whole buckle body is saved. It is beneficial to realize the miniaturization of the buckle body.

In a possible implementation manner, the first buckling part and the second buckling part are both cylindrical, and the first buckling part and the second buckling part which are buckled with each other are coaxial.

In one possible implementation, when all the bosses of the buckle body are embedded into the corresponding buckle windows on the buckle support, the bottom of the chip substrate is in contact with the top of the terminal. Because the welding parts are respectively connected with the bottom of the terminal and the PCB, when the bottom of the chip substrate is contacted with the top of the terminal, the electrical connection between the chip substrate and the PCB is established, and electric signals can be transmitted through the terminal and the welding parts mutually.

In a possible implementation manner, the buckle body further includes: an elastic member; the first buckling part comprises a first inner groove; the second buckling part comprises a second inner groove; when the second buckling part and the first buckling part are buckled with each other, part or all of the length of the first buckling part is positioned in the second inner groove; the elastic part is arranged in the first inner groove, one end of the elastic part is connected with the bottom of the first inner groove, and the other end of the elastic part is connected with the bottom of the second inner groove; each elastic part is used for providing elasticity for the boss on the same side, so that the boss on the same side is stopped by the corresponding buckle window, and the boss on the same side is prevented from sliding out of the corresponding buckle window. The elastic part prevents the boss from being scratched out of the buckle window by utilizing the elastic performance of the elastic part, and the reliable connection between the boss and the corresponding buckle window under the action of no external force is ensured.

In one possible implementation manner, when the second buckle assembly extrudes towards the first buckle assembly and the third buckle assembly extrudes towards the first buckle assembly, the buckling length of each second buckling part and the corresponding first buckling part is increased; when the buckling length is increased to the extent that each boss is separated from the corresponding buckle window, the buckle body can be detached from the buckle support; the buckling length is the length of the mutual buckling of the first buckling part and the second buckling part in the length direction of the first buckling part or the second buckling part. Because the buckle body can be dismantled from the buckle support, and connect and realize through boss and buckle window, simple and convenient, consequently realize the degree of difficulty low, save dismouting time.

In one possible implementation, the top of the two protruding arms of the first fastener assembly is used for adhering the heat sink.

In a third aspect, the present application provides a buckle dismounting system for a socket connector, comprising: the socket connector provided by the first aspect and the buckle body provided by the second aspect; the boss of the buckle body is used for being matched and connected with the buckle window of the socket connector; when all the bosses are separated from the corresponding buckle windows, the buckle body can be detached from the socket connector. The assembling mode of the buckle window of the socket connector and the boss on the buckle body is simple and reliable, the realization difficulty is low, the disassembly and the assembly are convenient, and the assembly and disassembly time is saved.

In a possible implementation manner, the buckle dismounting system of the receptacle connector further includes: a PCB; the PCB includes pads thereon for solder spot soldering with the receptacle connector.

In a possible implementation manner, the buckle dismounting system of the receptacle connector further includes: a chip substrate; the chip substrate is used for being adhered to the bottom of the buckle body; when all the bosses of the buckle body are embedded into the corresponding buckle windows on the buckle support, the bottom of the chip substrate is contacted with the top of the terminal; the chip substrate has a photoelectric conversion function and is used for converting the received optical signals into electric signals and transmitting the electric signals to the PCB.

In a possible implementation manner, the buckle dismounting system of the receptacle connector further includes: an optical module; the optical module is embedded into the fastener body; the optical module is used for optically coupling with the chip substrate to transmit optical signals. The optical module is embedded into the first groove of the buckle body, so that the space is saved.

In a possible implementation manner, the buckle dismounting system of the receptacle connector further includes: a heat sink; the heat sink is adhered to the fastener body; the heat sink is used for dissipating heat generated on the optical module and the chip substrate. Through the heat dissipation of the radiator, the working performance of the optical module and the chip substrate is improved, such as the optical transmission efficiency.

In a possible implementation manner, the buckle dismounting system of the receptacle connector further includes: unlocking the jig; the unlocking jig is used for enabling all the bosses to be separated from the corresponding buckle windows by contacting the buckle body. The buckle body is detached from the socket connector by using the unlocking jig, so that the damage caused by manual detachment of the buckle body or the socket connector is avoided, and the detachment safety and reliability are improved.

According to the technical scheme, the embodiment of the application has at least the following advantages:

the application provides a socket connector which comprises a shell, a terminal, a welding piece and a buckle support; the buckle support is connected with the shell, and a welding point is arranged at the bottom of the buckle support and used for being welded with the Printed Circuit Board (PCB). The annular housing has a hollow window in which the terminals are arranged. The solder connects the bottom of the terminal, also for soldering to the PCB. Because the buckle support is provided with the welding point, the PCB can be directly welded on the PCB during application, and the PCB does not need to be punched during the encapsulation of the socket connector, thereby saving the occupied area of the board. The PCB has free high-speed wiring, does not need to additionally detour outgoing lines, and reduces the packaging cost. Compared with a traditional socket connector packaging mode, the socket connector provided by the application has a smaller packaging size and can be suitable for more application scenes.

Drawings

Fig. 1 is a front view of a receptacle connector according to an embodiment of the present disclosure;

fig. 2 is a structural side view of a receptacle connector according to an embodiment of the present disclosure;

fig. 3A is a three-dimensional exploded view of a receptacle connector according to an embodiment of the present disclosure;

fig. 3B is a three-dimensional view of the assembled components of a receptacle connector according to an embodiment of the present application;

fig. 4 is a schematic diagram illustrating a connection between a socket connector and a PCB according to an embodiment of the present disclosure;

fig. 5A is a three-dimensional exploded view of a buckle body according to an embodiment of the present disclosure;

fig. 5B is a three-dimensional view of the buckle body according to the embodiment of the present disclosure after assembling components;

fig. 6 is a sectional view of the buckle body provided in the present application after assembling components;

fig. 7 is a front view of the buckle body according to the present embodiment after assembling components;

fig. 8 is a schematic view illustrating an assembly of a buckle body and a receptacle connector according to an embodiment of the present disclosure;

fig. 9 is a side view of the fastener body after the optical module is embedded in the fastener body and the heat sink is connected thereto according to the embodiment of the present disclosure;

fig. 10 is a rear view of a buckle mounting and dismounting system of a receptacle connector according to an embodiment of the present disclosure;

fig. 11 is a side view of a buckle mounting and dismounting system of a receptacle connector according to an embodiment of the present disclosure;

fig. 12A is a three-dimensional view of a buckle mounting and dismounting system of a receptacle connector according to an embodiment of the present disclosure;

fig. 12B is a three-dimensional exploded view of a buckle mounting and dismounting system of a receptacle connector according to an embodiment of the present disclosure;

fig. 13 is a schematic view illustrating a buckle body of the buckle dismounting system of the receptacle connector according to the embodiment of the present application without being unlocked;

fig. 14 is a schematic view illustrating a buckle body of a buckle dismounting system of a receptacle connector according to an embodiment of the present application being unlocked.

Detailed Description

At present, the PCB needs to be punched when the socket connector is packaged, and the PCB is fastened and connected with the socket connector through a screw via hole. But the punching connection needs a larger board area, and the hole position in the PCB affects the high-speed wiring, so the cost is higher. In addition, the structure is not small enough, resulting in a limited application scenario. In view of the above problems, the present application provides a socket connector, a buckle body and a buckle mounting and dismounting system for the socket connector. The buckle support of the socket connector can be directly welded on the PCB, so that the PCB is prevented from being punched, the occupied area is saved, and the packaging cost is reduced. The applicability of the socket connector in various scenes is improved through the miniaturization of the structure.

In order to make those skilled in the art better understand the technical solutions provided by the embodiments of the present application, the following will explain the socket connector and the buckle dismounting system of the socket connector in detail with reference to the drawings and the embodiments.

Fig. 1 and fig. 2 are a front view and a side view of a receptacle connector according to an embodiment of the present application. In fig. 1, the y-axis is oriented forward and into the page. In fig. 2, the x-axis is directed perpendicularly out of the page. The three-dimensional exploded view of the receptacle connector and the three-dimensional view of the assembled components therein are shown in fig. 3A and 3B, respectively.

The receptacle connector 100 includes: the housing 110, the terminal 120, the solder 130, and the clip holder 140. The buckle holder 140 may be connected to the housing 110. In addition, the bottom of the buckle holder 140 is provided with a welding point, and the buckle holder 140 can be welded to the PCB through the welding point.

The buckle holder 140 may include two components: a first bracket 141 and a second bracket 142. In a front view of the receptacle connector 100 (i.e., in a forward direction along the y-axis of the front view of the receptacle connector structure shown in fig. 1), the first and second brackets 141 and 142 each include a first portion and a second portion. The second portion is the bottom of the fastener bracket 140 having a welding point, and when the fastener bracket 140 needs to be welded to a PCB, the welding point of the second portion of the first bracket 141 and the welding point of the second portion of the second bracket 142 are welded to a pad on the surface of the PCB. The first portion and the second portion of the first bracket 141 form a first predetermined included angle, and the first portion and the second portion of the second bracket 142 form a second predetermined included angle. The first preset included angle and the second preset included angle may be the same or different. In the example of fig. 1, the first and second predetermined angles are both 90 °, i.e. each first portion is perpendicular to the connected second portion. Therefore, the first bracket 141 and the second bracket 142 are L-shaped from the front view of the receptacle connector 100.

In the example of fig. 1, the first and second brackets 141 and 142 of the L shape respectively constitute openings, and both openings face away from the housing 110. In other implementations, the openings formed by the first bracket 141 and the second bracket 142 may be both facing the housing 110, or one of the openings faces the housing 110 and the other opening faces away from the housing 110. The opening direction formed by the first bracket 141 and the opening direction formed by the second bracket 142 are not limited herein.

The configuration of the housing 110 can be seen in fig. 3A. The housing 110 is annular, and the housing 110 has a hollow window.

In one possible connection manner of the housing 110 and the buckle holder 140, two sides S1101 and S1102 of the housing 110, which are not connected to each other, are respectively provided with a positioning protrusion 111. In order to connect with the housing 110, the first portion of the first bracket 141 and the second portion of the second bracket 142 are both provided with a positioning window 144, and the positioning protrusion 111 of the housing 110 extends into the corresponding positioning window 144 on the buckle bracket 140, so as to connect the buckle bracket 140 and the housing 110. When attached, the housing 110 is positioned between the first portion of the first bracket 141 and the first portion of the second bracket 142. In addition, in other implementations, the housing 110 may be directly adhered to the buckle holder 140. Therefore, the connection mode between the housing 110 and the buckle holder 140 is not particularly limited in the present application.

Fig. 4 is a schematic connection diagram of a socket connector and a PCB according to an embodiment of the present disclosure. As shown in fig. 4, the bottom surface S1412 of the second portion of the first bracket 141 and the bottom surface S1422 of the second portion of the second bracket 142 are each welded to a pad of the PCB upper surface S1 by a solder bump provided. In practical applications, in order to reduce the risk of pad detachment caused by excessive tensile force applied to the PCB pad, the bottom surfaces S1412 and S1422 may respectively include a plurality of bonding areas, and each bonding area is provided with at least one bonding pad.

In a possible implementation, the plurality of welding points on the bottom surfaces S1412 and S1422 may be uniformly distributed, for example: are distributed at equal intervals. Therefore, the tensile force borne by the pad positions connected with the welding points on the bottom surfaces S1412 and S1422 is as uniform as possible, and the risk of falling off due to unbalanced stress of the pad connected with a single point or a few welding points is reduced. The distributed pads on the clip frame 140 may be soldered to the pads of the PCB by Surface Mount Technology (SMT) or other soldering techniques.

The housing 110 may be made of an engineering plastic capable of withstanding the high temperature conditions of the SMT process. The material of the housing 110 is not particularly limited.

When the receptacle connector 100 is assembled, the terminals 120 are arranged into the hollow windows of the housing 110, as shown in fig. 3B. The terminals 120 may be arranged in a predetermined array, and the number of the terminals 120 is not limited herein. The solder 130 is used to connect the bottom of the terminal 120 and is used to solder to the PCB.

In order to facilitate the clear understanding of the connection relationship between the terminals 120 and the solder members 130, the connection positions of the terminals 120 and the solder members 130 in the receptacle connector 100 are also drawn in a perspective manner in fig. 2, and the housing 110 is also drawn in a perspective manner in the embodiment of the present application. The shape of the welding member 130 may include various shapes such as a sphere, a drop, a column, etc. Spherical welding part 130 are also referred to as solder balls. The top of the terminal 120 may protrude out of, be flush with, or be lower than the upper surface of the housing.

The terminals 120 and the solder members 130 may be arranged in a number ratio of 1:1. For example: the socket connector 100 includes 48 terminals 120 and further includes solder members 130 corresponding to the 48 terminals 120 one to one. In particular, the receptacle connector 100 may employ contact springs as the terminals 120. As shown in fig. 4, when the first and second brackets 141 and 142 of the receptacle connector 100 are soldered to the PCB, the solder 130 is also soldered to the upper surface S1 of the PCB.

In the embodiment of the present application, the fastener bracket 140 of the receptacle connector 100 constructs a fixed connection relationship between the receptacle connector 100 and the PCB by using a soldering technique. Because the welding points arranged at the bottom of the buckle support 140 can be directly welded on the PCB, the PCB does not need to be punched when the socket connector 100 is packaged, thereby saving about 20% of the board area. The PCB has free high-speed routing, does not need to additionally detour outgoing lines, reduces the packaging cost and reduces the number of board layers by about 30 percent. Compared with a traditional socket connector packaging mode, the socket connector 100 provided by the application has a smaller packaging size and can be suitable for more application scenes.

In addition, the buckle holder 140 of the receptacle connector 100 is further opened with a buckle window 143. The snap windows 143 are specifically formed in a first portion of the first bracket 141 and a first portion of the second bracket 142. In particular, snap windows 143 of the same size and shape may be used, or snap windows 143 of different sizes and/or shapes may be used. In one example, the snap window 143 is rectangular in outline. The locking windows 143 are used to lock the fastener body and maintain the socket connector 100 and the fastener body stably connected without external force. An example implementation of opening the snap window 143 on the snap bracket 140 is described below with reference to fig. 2 and 3A-3B.

As shown in fig. 2 and fig. 3A-3B, the first bracket 141 and the second bracket 142 each include two support arms and a groove formed by the two support arms in a side view of the receptacle connector 100 (i.e., along the direction of the x-axis of the side view of the receptacle connector structure shown in fig. 2). In the z-direction shown in fig. 3A, the highest point of the support arms is higher than the groove bottom of the groove formed by the two support arms. In conjunction with the structure of the buckle holder 140 shown in fig. 3B, the buckle holder 140 includes 4 support arms. One snap window 143 is provided on each support arm. If the same number of fastening windows 143 are provided on each support arm, the stress applied to the fastener body after the fastening windows 143 are fastened can be well balanced. Thus, local sudden stress on the bonding pad on the PCB connected to the buckle holder 140 is avoided, and the reliability of the socket connector 100 is improved.

In the embodiment of the present application, the buckle body installed with the socket connector 100 provided in the foregoing embodiment includes bosses, and the bosses are connected with the buckle windows formed on the buckle bracket 140 of the socket connector 100 in a matching manner.

To facilitate understanding of the connection manner between the buckle body and the receptacle connector 100, the structure and assembly effect of the buckle body according to the embodiment of the present application will be described with reference to fig. 5A and 5B. Fig. 5A is a three-dimensional exploded view of a buckle body according to an embodiment of the present application, and fig. 5B is a three-dimensional view of the buckle body shown in fig. 5A after assembling components.

The buckle body 200 includes: a first buckle assembly 210, a second buckle assembly 220 and a third buckle assembly 230. The second buckle assembly 220 and the third buckle assembly 230 are connected to the first buckle assembly 210.

The bottom of the first fastener assembly 210 is used for firmly adhering to the upper surface of the chip substrate 240. The chip substrate 240 has a photoelectric conversion function, and can convert an optical signal obtained by coupling an optical module into an electrical signal, and then transmit the electrical signal to the PCB by being connected to the PCB. The first buckle assembly 210 includes two protruding arms: a first protruding arm 212 and a second protruding arm 213 and a first recess 211. The first recess 211 is sized to receive an optical module. The optical module may be insert-fitted into the first recess 211, and the optical module may be extracted from the first recess 211.

The first groove 211 is formed between the first protruding arm 212 and the second protruding arm 213. Each of the first and second projecting arms 212, 213 includes a first side and a second side. Wherein, the first side surface of the first protruding arm 212 and the first side surface of the second protruding arm 213 are also the two side surfaces of the first concave groove 211 respectively. In the buckle body 200 shown in fig. 2, two side surfaces of the first groove 211 are perpendicular to the groove bottom of the first groove 211, respectively. In other implementations, the two side surfaces of the first groove 211 may also respectively form an angle different from 90 ° with the groove bottom of the first groove.

The second side surface of the first protruding arm 212 and the second side surface of the second protruding arm 213 are provided with first buckling parts, wherein the first buckling part P1A located on the first protruding arm 212 and the first buckling part P1B located on the second protruding arm 213 may have the same structure and size. In other possible implementations, the first engaging portion P1A and the first engaging portion P1B may have different structures and sizes.

The second buckle assembly 220 and the third buckle assembly 230 each include a first side and a second side. The first side of the second fastener assembly 220 is provided with a second engaging portion P2A, and the first side of the third fastener assembly 230 is provided with a second engaging portion P2B. The second side of the second buckle assembly 220 and the second side of the third buckle assembly 230 are provided with bosses 260 for engaging with the snap windows 143 of the socket bracket 140.

The second fastening part P2A and the second fastening part P2B may have the same structure and size. In other possible implementations, the second engaging portion P2A and the second engaging portion P2B may have different structures and sizes.

When the second buckle assembly 220 and the third buckle assembly 230 are assembled with the first buckle assembly 210, the second engaging portion P2A faces the first engaging portion P1A, and the second engaging portion P2B faces the first engaging portion P1B. The length direction of the first fastening parts P1A and P1B and the length direction of the second fastening parts P2A and P2B are perpendicular to the extending direction of the first groove 211 (i.e., the y-axis positive direction or the y-axis negative direction). Therefore, the fastening direction of the second fastening portion P2A facing the first fastening portion P1A is perpendicular to the extending direction of the first recess 211, and the fastening direction of the second fastening portion P2B facing the first fastening portion P1B is perpendicular to the extending direction of the first recess 211.

The first buckling parts P1A and P1B and the second buckling parts P2A and P2B are cylindrical, the first buckling parts P1A and the second buckling parts P2A buckled with each other are coaxial, and the first buckling parts P1B and the second buckling parts P2B buckled with each other are coaxial.

The second side surface of the first protruding arm 212 and the second side surface of the second protruding arm 213 can be complete planes, and the first buckling part is arranged on the basis of the planes in a protruding mode. Furthermore, in another possible implementation, as shown in fig. 5A, the second side of the first protruding arm 212 and the second side of the second protruding arm 213 each include two raised areas and one depressed area. The recessed region is located between the two raised regions. In this implementation, the first engaging portion is specifically disposed on the recessed area of the second side surface. Because the first buckling part P1A is disposed in the recessed area of the second side surface of the first protruding arm 212, when the first buckling part P1A and the second buckling part P2A are buckled, the second buckling part P2A may be partially or completely disposed in the recessed area, so as to save occupied space. Similarly, since the first engaging portion P1B is disposed in the recessed area of the second side surface of the second protruding arm 213, when the first engaging portion P1B and the second engaging portion P2B are engaged, the second engaging portion P2B may be partially or completely disposed in the recessed area, so as to save the occupied space. As can be seen from the above description, the buckle assembly 200 can be more miniaturized as a whole.

The buckle body 200 further includes two elastic members 250. As an example, the elastic part 250 may be a spring.

In the embodiment of the present application, since the first engaging portions P1A and P1B and the second engaging portions P2A and P2B are both cylindrical, the cylindrical first engaging portions P1A and P1B each include a first inner groove, and the cylindrical second engaging portions P2A and P2B each include a second inner groove. Two exemplary snap-fit approaches are described below.

In one possible implementation, the maximum outer diameter of the first engaging portion is smaller than the maximum inner diameter of the second inner groove, so that the first engaging portion can be fitted in the second inner groove of the corresponding second engaging portion. Namely, the first buckling part is embedded in the second buckling part in a sleeved mode. In this implementation, the two elastic parts 250 may be respectively inserted into the first inner groove of the first engaging portion P1A and the first inner groove of the first engaging portion P1B.

In another possible implementation, the maximum outer diameter of the second fastening part is smaller than the maximum inner diameter of the first inner groove, so that the second fastening part can be fitted into the first inner groove of the corresponding first fastening part. Namely, the first buckling part is embedded with the second buckling part. In this implementation, the two elastic parts 250 may be respectively inserted into the second inner groove of the second engaging portion P2A and the second inner groove of the second engaging portion P2B.

In the above exemplary snap-fit manner, both ends of the elastic member 250 are respectively connected to the bottom of the first inner tank and the bottom of the second inner tank. When the fastening length of the first fastening part and the second fastening part corresponding to each other is changed, the length of the elastic component 250 is changed due to the stretching or compressing of the two ends. The buckling length is the length of the mutual buckling of the first buckling part and the second buckling part in the length direction of the first buckling part or the second buckling part. The longer the snap-fit length, the shorter the length of the resilient part 250; conversely, the shorter the snap-fit length, the longer the length of the resilient element 250.

In fig. 5A, the second side of the second buckle assembly 220 and the second side of the third buckle assembly 230 each include two bosses 260. The top cross-sectional area of the boss 260 is smaller than the bottom cross-sectional area of the boss 260. Fig. 6 is a cross-sectional view of the buckle body according to the embodiment of the present disclosure after assembling components; fig. 7 is a front view of the buckle body after assembly of the components. In fig. 6 and 7, the y-axis is forward and inward of the page. The boss 260 is trapezoidal in front view of the buckle body 200 (i.e., in the direction along the y-axis of the front view of the buckle body structure shown in fig. 7). In practical applications, the shape of the boss 260 may be set according to practical requirements, and the shape of the boss 260 is not particularly limited herein.

The two bosses 260 of the second side of the second buckle assembly 220 are distributed at two ends of the second side along the extending direction of the first groove 211. Similarly, the two bosses 260 of the second side of the third fastener assembly 230 are distributed at two ends of the second side along the extending direction of the first recess 211.

The positions of the snap windows 143 formed on the buckle holder 140 correspond to the positions of the bosses 260 of the buckle body 200, and the number of the snap windows 143 corresponds to the number of the bosses 260. As shown in fig. 5A, there are 4 bosses 260, two of which are disposed on the second side of the second fastener assembly 220, and the other two of which are disposed on the second side of the third fastener assembly 230. As shown in fig. 3A, there are 4 snap windows 143, two of which are distributed on the two supporting arms of the first portion of the first bracket 141, and the other two of which are distributed on the two supporting arms of the first portion of the second bracket 142.

After the socket connector 100 and the buckle body 200 are assembled, when the buckle body 200 needs to be assembled to the socket connector 100, the boss 260 only needs to extend into the buckle window 143 at the corresponding position on the buckle holder 140. The direction in which the bosses 260 enter the corresponding snap windows 143 is perpendicular to the extending direction of the first recess 211. In the embodiment of the present application, the elastic part 250 can provide an elastic force to the boss 260 on the same side through the self-deformation recovery characteristic thereof, so that the boss 260 is stopped by the latching window 143, and when the boss 260 is stopped by the latching window 143, the elastic part 250 is in a free state or a compressed state. Therefore, the bosses 260 can be prevented from sliding out of the corresponding fastening windows 143. Therefore, the elastic member 250 realizes a stable fitting connection of the boss 260 in the snap window 143.

When all the bosses 260 are inserted into the corresponding snap windows 143 of the snap bracket 140 and stopped by the corresponding snap windows 143, the assembly of the snap body 200 and the receptacle connector 100 is completed. At this time, the chip substrate 240 adhered to the bottom of the buckle body 200 contacts the top of the terminal 120 of the socket connector 100. Since the bottom of the terminal 120 is connected to the solder 130 and the solder 130 is connected to the PCB, the chip substrate 204 can be connected to the PCB through the terminal 120 and the solder 130.

The tops of the two protruding arms of the first fastener assembly 210 of the fastener body 200 may also be adhered to the heat sink, for example, by dispensing adhesive. Fig. 8 is a schematic view of an assembly of a buckle body and a receptacle connector according to an embodiment of the present application. Fig. 9 is a side view of the fastener body after the optical module is embedded in the fastener body and the heat sink is connected.

The optical module 400 is inserted into the first recess 211 of the first buckle assembly 210 of the buckle body 200. The optical module 400 may be optically connected to an optical fiber. The direction in which the optical fiber is embedded in the optical module may be the same as the extending direction of the first groove 211, such as the negative y-axis direction shown in fig. 8. The optical module 400 and the chip substrate 240 may be optically coupled. In the embodiment of the present invention, the heat generated by the optical module 400 and the chip substrate 240 is dissipated through the heat sink 300 connected to the fastener body 200.

In the receptacle connector 100 provided in the embodiment of the present application, the fastening window 143 formed on the fastener bracket 140 facilitates the fastener body 200 with the boss 260 at the outer side to extend into the fastening window 143 through the boss 260. Further, the buckle body 200 can be easily mounted on the receptacle connector 100.

When the second buckle assembly 220 is pressed toward the first buckle assembly 210 and the third buckle assembly 230 is pressed toward the first buckle assembly 210, the buckling length of each second buckling part and the corresponding first buckling part is increased. When the fastening length is increased to such an extent that each boss 260 is separated from the corresponding fastening window 143, the buckle body 200 is detachable from the buckle holder 140. In practical applications, the operation of pressing the second buckle assembly 220 to the first buckle assembly 210 and the operation of pressing the third buckle assembly 230 to the first buckle assembly 210 may be manually performed, or may be performed by using additional devices. The form of the device is not limited herein.

It should be noted that, in the embodiment of the present application, the number of the snap windows 143 and the bosses 260 may be set according to actual requirements. Each support arm of the side elevation of the first bracket 141 and the side elevation of the second bracket 142 is provided with at least one snap window 143. For example, in order to improve the connection reliability between the buckle body 200 and the receptacle connector 100, 2 buckle windows 143 may be disposed in each support arm. In addition, the number of snap windows 143 provided for each support arm may be the same or different.

Based on the socket connector and the buckle body provided by the above embodiments, correspondingly, the present application further provides a buckle dismounting system for the socket connector.

Fig. 10 and 11 are a rear view and a side view of the buckle mounting and dismounting system of the receptacle connector, respectively. A three-dimensional view of the system and a three-dimensional exploded view are shown in fig. 12A-12B. The system comprises: the foregoing embodiments provide the receptacle connector 100 with the snap windows 143, and the buckle body 200 with the bosses 260.

The boss 260 of the buckle body 200 is used for being matched and connected with the buckle window 143 of the socket connector 100. When all the bosses 260 are disengaged from the corresponding snap windows 143, the latch body 200 is detachable from the receptacle connector 100.

Optionally, the above system further comprises: a PCB;

the PCB includes pads thereon for solder bonding with the socket connector 100.

Optionally, the above system further comprises: a chip substrate 240;

the chip substrate 240 is used for being adhered to the bottom of the buckle body 200; when all the bosses 260 of the buckle body 200 are inserted into the corresponding buckle windows 143 of the buckle holder 140, the bottom of the chip substrate 240 contacts the top of the terminals 120;

the chip substrate 240 has a photoelectric conversion function, and is configured to convert a received optical signal into an electrical signal and transmit the electrical signal to the PCB.

Optionally, the above system further comprises: an optical module 400;

the optical module 400 is embedded in the buckle body 200; the optical module 400 is configured to be optically coupled to the chip substrate 240 to transmit the optical signal.

Optionally, the above system further comprises: a heat sink 300;

the heat sink 300 is adhered to the buckle body 200; the heat sink 300 is used to dissipate heat generated in the optical module 400 and the chip substrate 240.

Optionally, the above system further comprises: an unlocking jig 500;

the unlocking jig 500 is used for contacting the buckle body 200 to make all the bosses 260 separate from the corresponding buckle windows 143.

In the system, the connection relationship between the PCB, the socket connector 100, the fastener body 200, the chip substrate 240, the heat sink 300 and the optical module 400, and the structures of the socket connector 100 and the fastener body 200 are all described in detail above, and therefore, no further description is given in the embodiment of the system.

The bosses 260 on the periphery of the buckle body 200 correspond to the buckle windows 143 formed on the buckle bracket 140 of the receptacle connector 100 one by one, and the mutually corresponding bosses 260 and buckle windows 143 are specifically used for establishing the connection relationship between the buckle body 200 and the receptacle connector 100.

Without the aid of external equipment, the second buckle assembly 220 of the buckle body 200 is manually pressed toward the first buckle assembly 210 along the buckling direction, and the third buckle assembly 230 is manually pressed toward the first buckle assembly 210 along the opening direction, so that the buckle body 200 can be removed from the receptacle connector 100. In addition, the unlocking jig 500 can be used.

The unlocking jig 500 is used for unlocking the buckle body 200 from the socket connector 100, i.e. releasing the connection between the buckle body 200 and the socket connector 100. Since the chip substrate 240 is adhered to the bottom of the buckle body 200, when the buckle body 200 is separated from the receptacle connector 100, the chip substrate 240 is also separated from the buckle body 200, and the chip substrate 240 is no longer electrically connected to the PCB. The unlocking jig 500 includes two arms each extending in a predetermined direction (i.e., in the negative z-axis direction), and the extended end position includes a wedge portion 510 (as shown in the dotted circle). The direction in which the top of the wedge 510 points toward the bottom coincides with the preset direction. The cross-sectional area of the top of the wedge 510 is larger than the cross-sectional area of the bottom of the wedge 510.

When unlocking, the unlocking jig 500 may move in a preset direction in a state of being held by an operator. The bottoms of the wedge portions 510 of the two arms of the entire unlocking jig 500 first contact the buckle body 200. As the unlocking jig 500 moves in the preset direction, the portion of the wedge portion 510 contacting the buckle body 200 gradually changes from the bottom to the top. Since the top sectional area of the wedge 510 is larger than the bottom sectional area of the wedge 510, the wedge 510 of the two arms of the unlocking jig 500 presses the buckle body 200 inward. That is, the second buckle assembly 220 is pressed in the positive x-axis direction, and the third buckle assembly 230 is pressed in the negative x-axis direction.

In the above description of the structure and the assembling relationship of the buckle body 200, mention has been made of: the buckle body 200 includes first engaging portions P1A and P1B located in the first buckle assembly 210, and second engaging portions P2A and P2B located in the second buckle assembly 220 and the third buckle assembly 230. The first buckling part P1A is buckled with the second buckling part P2A, the first buckling part P1B is buckled with the second buckling part P2B, and the lengths of the mutual buckling can be changed. When the unlocking jig 500 is unlocked, the wedge portions 510 of the two arms extrude the buckle body 200 inwards, and the buckling length of the first buckling portion and the second buckling portion is changed, so that the buckling length is increased. Meanwhile, the length of the elastic member 250 is shortened, and the bosses 260 of the outer side surfaces of the second buckle assembly 220 and the third buckle assembly 230 of the buckle body 200 can be separated from the corresponding buckle windows 143. The buckle body 200 can move freely in the positive or negative direction along the x-axis and be taken out.

Fig. 13 is a schematic view of a buckle dismounting system of a receptacle connector according to an embodiment of the present application, showing that a buckle body is not unlocked, which corresponds to a state of not being pressed by a wedge portion 510 of an unlocking jig 500. Fig. 14 is a schematic view illustrating that a buckle body of a buckle dismounting system of a receptacle connector according to an embodiment of the present application is unlocked, which corresponds to a state of being squeezed by a wedge portion 510 of an unlocking jig 500 or being squeezed manually by an operator.

In the buckle dismounting system of the receptacle connector according to the embodiment of the present application, the unlocking jig 500 may be utilized to conveniently dismount the buckle body 200 from the receptacle connector 100. Therefore, the probability that the buckle body 200 and/or the socket connector 100 is damaged when the buckle body is manually and directly touched for unlocking is reduced. Moreover, the buckle body 200 can be elastically self-buckled, and an operator simply holds the buckle body 200 by hand to compress the bosses 260 on the periphery of the buckle body to align with the buckle windows 143 on the buckle support 140, and then releases the hand to complete the installation between the buckle body 200 and the socket connector 100. The fastener dismounting system of the socket connector simplifies the operation of fastener mounting and dismounting, is convenient to replace and maintain, and reduces the mounting and dismounting time by 80%.

It is to be understood that, in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural ones. For example, at least one of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (20)

1. A receptacle connector, comprising: the connector comprises a shell, terminals, a welding piece and a buckle support;

the buckle support is connected with the shell; the bottom of the buckle support is provided with a welding point, and the welding point is used for welding with a Printed Circuit Board (PCB);

the shell is annular and is provided with a hollow window, and the terminals are arranged in the hollow window;

the welding part is connected with the bottom of the terminal and is used for welding to the PCB;

wherein, the buckle support includes: the first support and the second support respectively comprise a first part and a second part, and the first part is connected with the second part at a preset included angle;

the first portion of the first bracket and the first portion of the second bracket are both connected to the housing; the housing is located between the first portion of the first bracket and the first portion of the second bracket;

the second part of the first support and the second part of the second support are the bottoms of the buckle supports provided with the welding points.

2. The receptacle connector according to claim 1, wherein the number of the solder points is plural; and the welding points are welded on the PCB through a Surface Mount Technology (SMT).

3. The socket connector of claim 1, wherein the first portion of the first bracket and the first portion of the second bracket are each provided with a snap window; the buckle window is used for being matched and connected with the boss of the buckle body.

4. Socket connector according to claim 3, wherein the first part of the first carrier and the first part of the second carrier each comprise two support arms and a recess formed by the two support arms being semi-enclosed, each support arm being provided with at least one snap window.

5. The receptacle connector of claim 4, wherein the number of snap windows provided on each of the support arms is equal.

6. Socket connector according to any of claims 3 to 5, wherein the solder part is in particular a solder ball.

7. A buckle body for use with the receptacle connector of any one of claims 3-6;

the buckle body comprises a boss which is used for being matched and connected with the buckle window.

8. The buckle body of claim 7, wherein the buckle body comprises: a first fastener assembly, a second fastener assembly and a third fastener assembly;

the bottom of the first fastener assembly is used for being adhered to the upper surface of the chip substrate; the first buckle assembly comprises two convex arms and a first groove, and two side surfaces of the first groove are respectively the first side surfaces of the two convex arms; the first groove is used for embedding the optical module;

the second side surfaces of the two convex arms are respectively provided with a first buckling part, and the length direction of each first buckling part is vertical to the extending direction of the first groove;

the second buckle assembly and the third buckle assembly comprise second buckling parts; the length direction of each second buckling part is perpendicular to the extending direction; the second buckling part is used for being buckled and connected with the first buckling part in a one-to-one mode;

the bosses are positioned on the second buckle assembly and the third buckle assembly; the direction of the boss entering the corresponding buckle window is perpendicular to the extending direction.

9. The buckle body of claim 8, wherein the second side includes two raised areas and a recessed area, the recessed area being located between the two raised areas;

the first buckling part is specifically arranged in the depressed area.

10. The buckle body according to claim 8 or 9, wherein the first engaging portion and the second engaging portion are both cylindrical, and the first engaging portion and the second engaging portion are coaxial.

11. The buckle body according to claim 8 or 9, wherein when all the bosses of the buckle body are inserted into the corresponding buckle windows of the buckle holder, the bottom of the chip substrate is in contact with the top of the terminals.

12. The buckle body according to claim 8 or 9, further comprising: an elastic member;

the first buckling part comprises a first inner groove; the second buckling part comprises a second inner groove; when the second buckling part and the first buckling part are buckled with each other, part or all of the length of the first buckling part is positioned in the second inner groove;

the elastic part is arranged in the first inner groove, one end of the elastic part is connected with the bottom of the first inner groove, and the other end of the elastic part is connected with the bottom of the second inner groove;

each elastic part is used for providing elasticity for the bosses on the same side, so that the bosses on the same side are stopped by the corresponding buckle windows, and the bosses on the same side are prevented from sliding out of the corresponding buckle windows.

13. The buckle body according to claim 8 or 9, wherein when the second buckle assembly is pressed toward the first buckle assembly and the third buckle assembly is pressed toward the first buckle assembly, the buckling length of each of the second buckling portions with the corresponding first buckling portion is increased; when the buckling length is increased to the point that each boss is separated from the corresponding buckle window, the buckle body is detachable from the buckle support; the buckling length is the length of the mutual buckling of the first buckling part and the second buckling part in the length direction of the first buckling part or the second buckling part.

14. The buckle body according to claim 8 or 9, wherein the top of the two arms of the first buckle assembly are used for adhering a heat sink.

15. A buckle dismounting system of a socket connector is characterized by comprising: the receptacle connector of any one of claims 3 to 6 and the buckle body of any one of claims 7 to 14;

the boss of the buckle body is used for being matched and connected with the buckle window of the socket connector; when all the bosses are separated from the corresponding buckle windows, the buckle body is detachable from the socket connector.

16. The system of claim 15, further comprising: a PCB;

the PCB includes pads thereon for the solder joints with the socket connector.

17. The system of claim 16, further comprising: a chip substrate;

the chip substrate is used for being adhered to the bottom of the buckle body; when all the bosses of the buckle body are embedded into the corresponding buckle windows on the buckle support, the bottom of the chip substrate is contacted with the tops of the terminals;

the chip substrate has a photoelectric conversion function and is used for converting the received optical signals into electric signals and then transmitting the electric signals to the PCB.

18. The system of claim 17, further comprising: an optical module;

the optical module is embedded into the buckle body; the optical module is used for optically coupling with the chip substrate to transmit the optical signal.

19. The system of claim 18, further comprising: a heat sink;

the heat radiator is adhered to the buckle body; the radiator is used for radiating heat generated on the optical module and the chip substrate.

20. The system of any one of claims 15-19, further comprising: unlocking the jig;

the unlocking jig is used for enabling all the bosses to be separated from the corresponding buckle windows by contacting the buckle body.

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