CN106532321B

CN106532321B - CFP4 connector assembly

Info

Publication number: CN106532321B
Application number: CN201710002553.4A
Authority: CN
Inventors: 李江; 程牧; 赵乾普
Original assignee: Wenzhou Yihua Connector Co Ltd
Current assignee: Wenzhou Yihua Connector Co Ltd
Priority date: 2017-01-03
Filing date: 2017-01-03
Publication date: 2023-09-26
Anticipated expiration: 2037-01-03
Also published as: CN106532321A

Abstract

The application discloses a CFP4 connector assembly, which comprises an insulating body and a plurality of connecting terminals, wherein the insulating body and the connecting terminals can be combined together, the insulating body extends along the longitudinal direction and the width direction, a plurality of accommodating grooves are arranged in parallel in the longitudinal direction, the connecting terminals are partially accommodated in the accommodating grooves, the connecting terminals are provided with a first tail end and a second tail end which are opposite, the first tail end is embedded into the accommodating grooves, and the second tail end is exposed out of the accommodating grooves. The CFP4 connector assembly has good high-frequency performance, simple structure and strong universality.

Description

CFP4 connector assembly

Technical Field

The present application relates to an interface adapter for an optical module, and more particularly, to a CFP4 connector assembly.

Background

With the rapid development of the information industry, high-speed information transmission becomes a great trend of network development in the future. The communication network market gradually moves from 10G to 40G and 100G, and 40G and 100G optical devices are widely applied in various fields. In addition, according to related statistics, 100G products will continue to be popular in the next few years, and dense wavelength division optical communication modules based on standardization will be paid more and more attention, and are gradually and widely accepted by the market, wherein CFP (form-factor pluggable) optical modules are products under the development of 100G technology.

CFP series optical modules have undergone CFP, CFP2 altogether from the push-out until CFP4 optical modules have been successfully pushed out and have received great attention. Compared with the traditional CFP and CFP2 series, the CFP4 optical module has obvious advantages: from the aspect of volume, the smaller the CFP series optical module is, the volume of the CFP4 optical module is one half of CFP2, and one fourth of CFP is; from the aspect of performance, the CFP4 optical module is compatible with a multi-source protocol (MSA), supports the same speed as CFP2 and CFP2s, obviously improves the transmission efficiency, and has the power consumption which is only one half of the original power consumption; CFP4 is lower in cost than CFP2 from a system cost perspective; from the aspect of module integration level, the front plate port density of the CFP4 is obviously enhanced, and the integration level is about twice that of the CFP2 and four times that of the CFP; in terms of transmission mode, the early 100G CFP optical module achieves a transmission rate of 100G by using ten channels of 10G in a 10×10 mode, while the current 100G CFP4 optical module achieves 100G transmission by using four channels in a 4×25 mode, so that the transmission efficiency is higher and the stability is stronger. Although the CFP4 optical module has the above superior performance, the interface structure is complex, and the interface of the CFP4 optical module is generally difficult to interconnect with other types of modules.

Based on this, there is a need for improvements to existing CFP4 optical module interface structures.

Disclosure of Invention

The technical problem to be solved by the application is to provide the CPF4 interface module with simple structure and strong universality.

The technical scheme adopted to solve the technical problems is as follows: the CFP4 connector assembly comprises an insulating body and a plurality of connecting terminals, wherein the insulating body and the connecting terminals can be combined together, the insulating body extends along the longitudinal direction and the width direction, a plurality of accommodating grooves are arranged in parallel in the longitudinal direction, the connecting terminals are partially accommodated in the accommodating grooves, the connecting terminals are provided with a first tail end and a second tail end which are opposite, the first tail end is embedded into the accommodating grooves, and the second tail end is exposed out of the accommodating grooves.

Optionally, the accommodating groove comprises an upper accommodating groove arranged on the upper surface of the insulating body and a lower accommodating groove arranged on the lower surface of the insulating body, and the upper accommodating groove and/or the lower accommodating groove comprises a shrinkage opening.

Optionally, the connection terminals include a first row of connection terminals and a second row of connection terminals, and the first row of connection terminals corresponds to the upper accommodating groove, and the second row of connection terminals corresponds to the lower accommodating groove.

Optionally, the first row of connection terminals includes a first type of connection terminal and a second type of connection terminal, and a length of the first type of connection terminal in the longitudinal direction is greater than a length of the second type of connection terminal in the longitudinal direction;

the second row of connection terminals includes a first type of connection terminal and a second type of connection terminal, and a length of the first type of connection terminal in a longitudinal direction is greater than a length of the second type of connection terminal in the longitudinal direction.

Optionally, the first type of connection terminals of the first row of connection terminals are spaced apart by the second type of connection terminals.

Optionally, the first end exposed portion of the first type of connection terminal is larger than the first end exposed portion of the second type of connection terminal.

Optionally, the first row of connection terminals is an upper row of connection terminals, the second row of connection terminals is a lower row of connection terminals, and the upper row of connection terminals and/or the lower half of the lower row of connection terminals are combined with the limiting piece.

Optionally, the second ends of the upper row of connection terminals are aligned with the second ends of the lower row of connection terminals.

Optionally, the locating part includes first locating part and second locating part, upper row connecting terminal and first locating part integrated into one piece, lower row connecting terminal and second locating part integrated into one piece, just first locating part with the second locating part sets up the draw-in groove relatively.

Optionally, a fixing piece is arranged between the first limiting piece and the second limiting piece, a clamping portion extending and protruding along the width direction is arranged on the fixing piece, and the clamping portion can be matched with the clamping groove in a joggle joint mode.

Compared with the prior art, the application has the beneficial technical effects that: the CPP4 connector comprises an insulating body and a plurality of connecting terminals which can be combined together, wherein the connecting terminals are partially accommodated in the accommodating grooves, so that the stability of the CFP4 connector is enhanced; the connecting terminals are divided into a first row of connecting terminals and a second row of connecting terminals, and the lower half part of each row of connecting terminals is provided with an injection molding limiting part, so that better high-frequency performance is improved, and the consistency of the planeness of welding pins can be ensured; meanwhile, the assembling difficulty of a plurality of connecting terminals is reduced.

Drawings

FIG. 1 is a perspective view of a CFP4 connector assembly in accordance with an embodiment of the present application;

FIG. 2 is a bottom view of a CFP4 connector assembly in accordance with an embodiment of the present application;

FIG. 3 is a front view of a CFP4 connector assembly in accordance with an embodiment of the present application;

FIG. 4 is another view of a CFP4 connector assembly in accordance with an embodiment of the present application;

FIG. 5 is an exploded view of a CFP4 connector assembly according to an embodiment of the present application;

fig. 6 is a schematic view of an insulation body structure of a CFP4 connector assembly according to another embodiment of the application.

Detailed Description

The present application will be further described in connection with specific embodiments so that those skilled in the art may better understand and practice the application, but the examples are not intended to be limiting.

It should be noted that when an element is referred to as being "disposed" or "received" on another element, it can be directly on the other element or be present in the middle. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "lengthwise", "widthwise", "upper", "lower" and the like are used herein for illustrative purposes only. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Fig. 1 is a perspective view of a CFP4 connector assembly according to an embodiment of the application. The CFP4 connector assembly includes a plurality of connection terminals 1 and an insulating body 2 that can be combined/bonded together, the insulating body 2 extending in a longitudinal direction and a width direction. Illustratively, the X-direction in fig. 3 represents the lengthwise direction; the Y direction represents the width direction. In the longitudinal direction, a plurality of accommodating grooves 21 are provided in parallel/side by side, and the connection terminals 1 are partially accommodated in the accommodating grooves 21. Optionally, the connection terminals may be metal strips or other conductive materials, the insulating body 2 may be plastic body materials, the accommodating grooves 21 are provided with spacing parts, and the accommodating grooves 21 are in one-to-one correspondence with the connection terminals 1. The adjacent connection terminals 1 have opposite first ends S1 and second ends S2, and the first ends S1 are embedded into the accommodating grooves 21, and the second ends S2 are exposed outside the accommodating grooves.

The receiving grooves 21 may include an upper receiving groove provided at the upper surface 22 of the insulating body 2 and a lower receiving groove provided at the lower surface 23 of the insulating body 2, and the number of the upper receiving grooves is equal to the number of the lower receiving grooves. In one embodiment, the top of the insulating body 2 is closed, the top end of the receiving groove 21 is spaced apart from the top of the insulating body 2, and the receiving groove 21 extends from this position to the bottom of the insulating body 2, i.e., the receiving groove 21 is in a semi-closed state.

Fig. 2 is a bottom view of a CFP4 connector assembly according to an embodiment of the application. The connection terminal 1 may include a first row of connection terminals 11 and a second row of connection terminals 12, and the first row of connection terminals 11 is located in the upper receiving groove and the second row of connection terminals 12 is located in the lower receiving groove. Further, the upper and lower receiving grooves may be disposed to be not entirely identical.

A front view of a CFP4 connector assembly according to an embodiment of the application is shown in fig. 3. The first-row connection terminals 11 include a first-type connection terminal 111 and a second-type connection terminal 112, and the length of the first-type connection terminal 111 in the longitudinal direction is longer than the length of the second-type connection terminal 112 in the longitudinal direction. Further, the first end S1 of the first type connection terminal 111 is not at the same height as the first end S1 of the second type connection terminal 112, and the second end S2 of the first type connection terminal 111 is at the same height or the same horizontal plane as the second end S2 of the second type connection terminal 112, that is: the second end S2 of the first-type connection terminal 111 exposed to the insulating body 2 is the same size as the second end S2 of the second-type connection terminal 112 exposed to the insulating body 2.

The first type of connection terminals 111 of the first row of connection terminals 11 are separated by the second type of connection terminals 112. In the present embodiment, the number of the first type connection terminals 111 of the first row of connection terminals 11 is ten, and two second type connection terminals 112 are spaced apart between two adjacent first type connection terminals 111 of the first row of connection terminals 11, namely: the second type connection terminals 112 of the first row of connection terminals 11 are grouped in pairs, and the total number is 18. Further, the first end S1 exposed portion of the first type connection terminal is larger than the first end exposed portion of the second type connection terminal.

Another view of a CFP4 connector assembly according to an embodiment of the application is shown in fig. 4. Similarly, the second-row connection terminals 12 include the first-type connection terminals 121 and the second-type connection terminals 122, and the length of the first-type connection terminals 121 in the longitudinal direction is greater than the length of the second-type connection terminals 122 in the longitudinal direction. Further, the first end S1 of the first type connection terminal 121 is not at the same height as the first end S1 of the second type connection terminal 122, and the second end S2 of the first type connection terminal 121 is at the same height or the same horizontal plane as the second end S2 of the second type connection terminal 122, that is: the second end S2 of the first-type connection terminal 121 exposing the insulating body 2 is the same size as the second end S2 of the second-type connection terminal 122 exposing the insulating body 2. Further, the first row of connection terminals 11 is an upper row of connection terminals, the second row of connection terminals 12 is a lower row of connection terminals, and the second ends S2 of the upper row of connection terminals are aligned with the second ends S2 of the lower row of connection terminals.

In one embodiment, the first type of connection terminals 111 of the second row of connection terminals 12 constitute one set of connection terminals, while the second type of connection terminals 112 constitute another set of connection terminals. In the present embodiment, the number of the first type connection terminals 111 of the first row of connection terminals 11 is ten, and the number of the second type connection terminals 112 is 18. Further, the first end S1 exposed portion of the first type connection terminal is larger than the first end exposed portion of the second type connection terminal.

Fig. 5 is an exploded view of a CFP4 connector assembly according to an embodiment of the application. The connection terminal is further provided with a stopper including a first stopper 113 and a second stopper 123. In this embodiment, the first row of connection terminals 11 is an upper row of connection terminals, the second row of connection terminals 12 is a lower row of connection terminals, the upper row of connection terminals is integrally formed with the first limiting member 113, and the lower row of connection terminals 12 is integrally formed with the second limiting member 123. For example, the connection terminals and the limiting members may be injection molded, and the first limiting member 113 is disposed at the lower half of the upper connection terminals, and the second limiting member 123 is disposed at the lower half of the lower connection terminals. The connector assembly formed in this way not only has excellent high-frequency performance, but also ensures uniformity of flatness of the second end S2 solder feet passing through the upper-row connection terminals 11 or the lower-row connection terminals 12; the difficulty in assembling and manufacturing the terminal assembly is reduced, so that the quality of the connector is easier to control.

Optionally, the upper surface 22 of the insulating body 2 may be further provided with a first groove 24, and the lower surface 23 of the insulating body 2 may be further provided with a second groove 25; the upper surface of the first limiting piece 113 is provided with a bump, the lower surface of the second limiting piece 123 is provided with a bump, the bump of the first limiting piece 113 is matched with the first groove 24, and the bump of the second limiting piece 123 is matched with the second groove 25, so that the first limiting piece 113 and the second limiting piece 123 cannot relatively move with the upper surface and the lower surface of the insulating body.

Further, the first limiting member 113 and the second limiting member 123 are disposed opposite to each other with a clamping groove. Illustratively, the clamping groove comprises a first clamping groove 26 arranged on the first limiting member 113 and a second clamping groove 27 arranged on the second limiting member 123, and the first clamping groove 26 is matched with the second clamping groove 27. A fixing member 3 is provided between the first stopper 113 and the second stopper 123, and a retaining portion 31 extending and protruding in the width direction is provided on the fixing member 3. Illustratively, the catch 31 may be mated with the slot dovetail such that the first and second stop members 113, 123 are secured to the insulator body 2. In another embodiment, the fixing member 3 and the clamping groove may be connected by a snap-fit manner. Optionally, to further achieve a firm engagement between the holding portion 31 and the clamping groove, the front end of the holding portion 31 may be further provided with a protruding portion, and the length of the protruding portion in the longitudinal direction is greater than the length of the rear end of the holding portion in the longitudinal direction.

In this embodiment, the fixing member 3 may be a metal fixing member, and the first and second limiting members 113 and 123 are used to define the relative positions of the first and second rows of terminals 11 and 12 and the insulating body 2, so as to prevent the connection terminals from being withdrawn when the PCB board is plugged.

Alternatively, the receiving grooves 21 may include a first type receiving groove 211 and a second type receiving groove 212. The first type accommodation groove 211 and/or the second type accommodation groove 212 is opened at a part in the width direction and the other part is closed by the surface of the insulating body 2. The first type accommodation groove 211 and/or the second type accommodation groove 212 are located at a distance from the upper end face of the insulating body 2, and extend from this position to the lower end face of the insulating body 2 until a through hole is formed. Alternatively, the first type accommodating groove 211 corresponds to the first type terminal; the second type receiving groove 212 corresponds to the second type terminal, and the two types of receiving grooves are uniform in size in the width direction.

Fig. 6 is a schematic view of an insulation body structure of a CFP4 connector assembly according to another embodiment of the application. A lower accommodating groove is formed in the lower surface of the insulating body 2, and comprises a first type accommodating groove 211 and a second type accommodating groove 212, wherein the first type accommodating groove 211 corresponds to the first type; the second type receiving groove 212 corresponds to the second type terminal, and the two types of receiving grooves form a closed structure at a lower half portion and a lower surface of the insulating body 2, and an open structure at an upper half portion. And the upper half forms a necked/bayonet configuration. In the present embodiment, the dimension of the first portion 213 of the second type accommodating groove 212 in the longitudinal direction is larger than the dimension of the second portion 214 in the longitudinal direction. Correspondingly, the second type terminal corresponding to the first portion 213 also becomes larger in size in the longitudinal direction, effectively preventing the connection terminal from escaping from the insulating body. Optionally, the upper receiving groove may also include a constriction similar to the above structure on the upper surface of the insulating body.

The various technical features of the above-described embodiments may be arbitrarily combined, and for brevity, all of the possible combinations of the various technical features of the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, it should be considered as the scope described in the present specification.

The above description of the specific embodiments of the present application has been given by way of example only, and the present application is not limited to the above-described embodiments, and various modifications and alterations may be made by those skilled in the art without departing from the spirit and scope of the appended claims. All of which fall within the scope of the novel implementation. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims

1. A CFP4 connector assembly including a dielectric body and a plurality of connection terminals that are combinable, characterized in that:

the insulation body extends along a longitudinal direction and a width direction, a plurality of accommodating grooves are arranged in parallel in the longitudinal direction, the connecting terminal part is accommodated in the accommodating groove, the connecting terminal is provided with a first tail end and a second tail end which are opposite, the first tail end is embedded in the accommodating groove, and the second tail end is exposed outside the accommodating groove;

the connecting terminals can be metal strips or other conductive materials, the insulating body can be plastic body materials, the accommodating grooves are provided with spacing parts, and the accommodating grooves correspond to the connecting terminals one by one;

the accommodating groove comprises an upper accommodating groove arranged on the upper surface of the insulating body and a lower accommodating groove arranged on the lower surface of the insulating body, and the upper accommodating groove and/or the lower accommodating groove comprise a necking;

the connecting terminals comprise a first row of connecting terminals and a second row of connecting terminals, the first row of connecting terminals correspond to the upper accommodating grooves, and the second row of connecting terminals correspond to the lower accommodating grooves;

the first row of connecting terminals are upper row of connecting terminals, the second row of connecting terminals are lower row of connecting terminals, and the lower half parts of the upper row of connecting terminals and/or the lower row of connecting terminals are combined with the limiting piece.

2. The CFP4 connector assembly of claim 1 wherein the first row of connection terminals includes a first type of connection terminals and a second type of connection terminals, and wherein the length of the first type of connection terminals in the longitudinal direction is greater than the length of the second type of connection terminals in the longitudinal direction; the second row of connection terminals includes a first type of connection terminal and a second type of connection terminal, and a length of the first type of connection terminal in a longitudinal direction is greater than a length of the second type of connection terminal in the longitudinal direction.

3. The CFP4 connector assembly of claim 2 wherein a first type of connection terminals of a first row of connection terminals are spaced apart by the second type of connection terminals.

4. The CFP4 connector assembly of claim 2, wherein the first end exposed portion of the first type of connection terminal is larger than the first end exposed portion of the second type of connection terminal.

5. The CFP4 connector assembly of claim 1 wherein the second ends of the upper row of connection terminals are aligned with the second ends of the lower row of connection terminals.

6. The CFP4 connector assembly of claim 1, wherein the limiting members include a first limiting member and a second limiting member, wherein the upper row of connecting terminals are integrally formed with the first limiting member, wherein the lower row of connecting terminals are integrally formed with the second limiting member, and wherein the first limiting member and the second limiting member are oppositely provided with clamping grooves.

7. The CFP4 connector assembly according to claim 6, wherein a fixing member is arranged between the first limiting member and the second limiting member, and a clamping portion extending and protruding along the width direction is arranged on the fixing member and can be matched with the clamping groove in a joggle joint mode.