WO2021134864A1

WO2021134864A1 - Cable connector assembly

Info

Publication number: WO2021134864A1
Application number: PCT/CN2020/075991
Authority: WO
Inventors: 陈锡中; 陈俊旭; 张�浩
Original assignee: 浙江兆龙互连科技股份有限公司
Priority date: 2020-01-02
Filing date: 2020-02-20
Publication date: 2021-07-08
Also published as: CN113067198A

Abstract

A cable connector assembly, comprising a first housing (1), a second housing (2), a circuit board (12), a locking member (7), and a pull band (3). The first housing (1) and the second housing (2) are fixed to each other, the circuit board (12) is sandwiched between the first housing (1) and the second housing (2), the locking member (7) is hinged onto the second housing (2), the lower portion of the locking member (7) is provided with a clamp band extending towards the board end, a spring (10) is provided between the clamp band and the second housing (2), two sides of the locking member (7) respectively extend upwards and run through the second housing (2) to form drawstrings, one end of the pull band (3) is provided with unlocking blocks (4), the first housing (1) is provided with a guide groove, the unlocking blocks (4) are arranged inside the guide groove, and the unlocking blocks (4) drive the drawstrings to rotate. By disposing the unlocking blocks (4) on the pull band (3) and providing the guide groove on the first housing (1), the unlocking blocks (4) move along the guide groove, the unlocking blocks (4) are limited by the first housing (1) and the second housing (2) and cannot easily get loose, and the unlocking blocks (4) are distributed along two sides of the housings (1, 2), and occupy a smaller space inside the housings, thus facilitating the arrangement of cables of more specifications; moreover, the pull band (3) and the unlocking blocks (4) are integrally formed, so the structure is reasonable and has higher strength.

Description

Cable connector assembly

Technical field

The present invention relates to a cable connector assembly, in particular to a cable connector assembly for high-speed transmission.

Background technique

Cable connector components are widely used in data center fields such as switches and servers. When the cable connector assembly is inserted into the board end cage, the triangular boss of the cable connector assembly and the triangular groove in the board end cage need to be interlocked, so as to achieve the function of being inserted and locked without falling off. Pulling the pull strap realizes the sinking of the triangular boss of the cable assembly, so as to realize the unlocking and pulling out function with the triangular groove in the plate end cage.

technical problem

The unlocking pull tabs of the existing connectors have various unlocking structures, but they generally have problems such as large space occupation, poor strength, short service life, and unreliable unlocking.

Technical solutions

In order to solve the above technical problems, the purpose of the present invention is to provide a cable connector assembly with an unlocking structure that occupies a small space and has a long service life.

In order to achieve the above objectives, the present invention adopts the following technical solutions:

The cable connector assembly includes a first housing, a second housing, a circuit board, a locking member, and a pull strap. The first housing and the second housing are fixed to each other, and the circuit board is clamped on the first housing. Between the housing and the second housing, the locking member is hinged on the second housing, the lower part of the locking member is provided with a clamping strip extending toward the plate end, and a spring is arranged between the clamping strip and the second casing , The two sides of the locking member respectively extend upward and penetrate the second housing to form a brace, one end of the brace is provided with an unlocking block, the first housing is provided with a guide groove, and the unlocking block is arranged at In the guide groove, and the unlocking block drives the pull bar to rotate.

As a preferred solution, the unlocking block includes hook strip portions distributed on both sides and a beam portion connecting the two hook strip portions, and the front end of the hook strip portion is turned inward to buckle with the brace. The hook strips on both sides are connected through the crossbeam, the overall strength is higher, the deformation is not easy, and the unlocking is more stable.

As a preferred solution: the second housing is provided with a through hole for the brace to pass through, and a second limiting groove is provided beside the through hole, and a second limiting protrusion is provided on the lower side of the hook section. Block, the second limiting protrusion is located in the second limiting groove.

As a preferred solution: a first limiting groove is provided on the first housing, a first limiting protrusion is provided on the upper side of the hook strip portion, and the first limiting protrusion is located in the first limiting groove Inside. Through the cooperation of the convex block and the limiting groove, when the lock buckle reaches the unlocking position, the unlocking block can be limited to prevent excessive pulling, so that the hook strip part and the pull strip bear excessive force and cause loosening.

As a preferred solution, the locking member is hinged on the second housing through a shaft, and the spring between the clamping bar of the locking member and the second housing is a conical spring. The conical spring has a low height when compressed, which can reduce the space for accommodating the locking member on the second housing, thereby making the entire unlocking structure occupies less space.

As a preferred solution, one end of the first housing and the second housing is further provided with a net tail component, and the net tail component is fixed on the cable. The net tail component is fixed with the cable, which can realize the positioning of the cable, which is convenient for operations such as stripping and welding, and at the same time prevents the cable and the circuit board from loosening when the cable is pulled.

As a preferred solution: an inner mold is further provided between the first shell and the second shell, the bottom of the inner mold is provided with a notch, the second shell is provided with a convex strip, the convex strip The card is located in the notch. The inner mold also uses a limit structure to improve the cable's resistance to pulling.

As a preferred solution: the first shell and the second shell are made of aluminum alloy, and the first shell and the second shell are fixed by rivets.

As a preferred solution: the parts of the first shell and the second shell close to the cable end are also wrapped with electromagnetic interference shrapnel.

As a preferred solution: the pull strap is made of plastic material, the unlocking block is metal, and the pulling strap and the unlocking block are integrally formed.

Beneficial effect

In the present invention, the unlocking block is arranged on the pull strap, and the housing is provided with a guide groove. The unlocking block moves along the guide groove. The unlocking block is restricted by the first housing and the second housing, so it is not easy to loosen, and the unlocking is reduced. Risk of failure; and the unlocking block is distributed along both sides of the shell, the space in the shell is smaller, and it is convenient to set up more specifications of cables; in addition, the pull strap and the unlocking block are integrally formed, with a reasonable structure and higher strength.

Description of the drawings

Figure 1 is a schematic diagram of the explosive structure of the present invention.

Figure 2 is a schematic diagram of the explosive structure of the present invention.

Figure 3 is a schematic diagram of the overall structure of the present invention.

Figure 4 is a schematic diagram of the overall structure of the present invention.

Fig. 5 is a schematic diagram of the structure of the present invention for removing the first housing.

Fig. 6 is a schematic diagram of the overall structure of the first housing of the present invention.

Fig. 7 is a schematic diagram of the overall structure of the second housing of the present invention.

The best mode of the present invention

The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.

The cable connector assembly shown in Figures 1 to 7 includes a first housing 1, a second housing 2, a circuit board 12, a locking member 7 and a pull strap 3. The first housing 1 and the second housing The two housings 2 are fixed to each other, the circuit board 12 is sandwiched between the first housing 1 and the second housing 2, the locking member 7 is hinged to the second housing 2 via a shaft 6, and the lock A clamping strip is arranged from the lower part of the fastener 7 toward the end of the plate, and a spring 10 is arranged between the clamping strip and the second housing 2. Both sides of the locking component 7 respectively extend upward and penetrate the second housing 2 to form a brace. An unlocking block 4 is provided at one end of the pull strap 3, a guide groove is provided on the first housing 1, the unlocking block 4 is arranged in the guide groove, and the unlocking block 4 drives the pull bar to rotate. The pulling strap 3 is made of plastic material, the unlocking block 4 is metal, and the pulling strap 3 and the unlocking block 4 are integrally formed.

The unlocking block 4 includes hook strip parts distributed on both sides and a beam part connecting the two hook strip parts, and the front end of the hook strip part is turned inward to buckle with the brace. The hook strips on both sides are connected through the crossbeam, the overall strength is higher, the deformation is not easy, and the unlocking is more stable.

The second housing is provided with a through hole 22 for the brace to pass through, and a second limiting groove 23 is also provided next to the through hole 22, and a second limiting protrusion is provided on the lower side of the hook section , The second limiting protrusion is located in the second limiting groove 23; the first housing is provided with a first limiting groove 101, and the upper side of the hook strip portion is provided with a first limiting protrusion , The first limiting protrusion is located in the first limiting slot 101. Through the cooperation of the convex block and the limiting groove, when the lock buckle reaches the unlocking position, the unlocking block can be limited to prevent excessive pulling, so that the hook strip part and the pull strip bear excessive force and cause loosening.

The locking member 7 is hinged on the second housing 2 via a shaft 6, and the spring between the clamping bar of the locking member 7 and the second housing 2 is a conical spring. The conical spring has a low height when compressed, which can reduce the space for accommodating the locking member on the second housing, thereby making the entire unlocking structure occupies less space.

A tail part 8 is also clamped at one end of the first housing 1 and the second housing 2, and the tail part 8 is fixed on the cable 11. The net tail component is fixed with the cable, which can realize the positioning of the cable, which is convenient for operations such as stripping and welding, and at the same time prevents the cable and the circuit board from loosening when the cable is pulled. An inner mold 5 is also provided between the first shell 1 and the second shell 2, a recess 51 is provided at the bottom of the inner mold 5, and a convex strip 21 is provided on the second shell 2 so that The protruding strip 21 is clamped in the recess 51. The inner mold also uses a limit structure to improve the cable's resistance to pulling.

The first housing 1 and the second housing 2 are made of aluminum alloy, and the first housing 1 and the second housing 2 are fixed by rivets 10. The portions of the first housing 1 and the second housing 2 close to the cable ends are also wrapped with electromagnetic interference shrapnel 7.

The working principle of the present invention is as follows: by pulling the strap backwards, the backward force is transmitted to the unlocking member at the front end of the strap, and the hook strips on both sides of the unlocking key respectively drive the pulling strips on both sides of the locking member, so that the locking member is at When the shaft rotates under the action of the shaft, the triangular boss at the front end of the lock member sinks. When it fully sinks into the plane of the zinc alloy shell, the active unhooking and unlocking function is realized. After the lock is released, the lock member is automatically reset by the rebound force of the spring. Since the unlocking piece moves in the guide groove of the casing as a whole, compared with the unlocking piece being directly exposed outside the casing, the unlocking piece is not easily detached from the casing, and the risk of unlocking failure is lower.

It should be noted that the above embodiments are only representative examples of the present invention. Many variations of the present invention are possible. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the essence of the present invention shall be deemed to belong to the protection scope of the present invention.

Claims

The cable connector assembly includes a first housing (1), a second housing (2), a circuit board (12), a locking member (7) and a pull strap (3). The first housing (1) ) And the second housing (2) are fixed to each other, the circuit board (12) is sandwiched between the first housing (1) and the second housing (2), and the locking member (7) is hinged on On the second housing (2), a clamping strip is extended from the lower part of the locking member (7) to the plate end, and a spring (10) is arranged between the clamping strip and the second housing (2), characterized in that: The two sides of the locking member (7) respectively extend upward and penetrate the second casing (2) to form a brace, one end of the tension band (3) is provided with an unlocking block (4), and the first casing ( 1) A guide groove is provided on the upper part, the unlocking block (4) is arranged in the guide groove, and the unlocking block (4) drives the pull bar to rotate.
The cable connector assembly according to claim 1, characterized in that: the unlocking block (4) comprises hook strip parts distributed on both sides and a beam part connecting the two hook strip parts, the hook strip part The front end is turned inward to buckle with the brace.
The cable connector assembly according to claim 1, characterized in that: the second housing is provided with a through hole (22) for the brace to pass through, and a second through hole (22) is also provided beside the through hole (22). A limiting groove (23), a second limiting protrusion is provided on the lower side of the hook strip part, and the second limiting protrusion is located in the second limiting groove (23).
The cable connector assembly according to claim 1, characterized in that: the first housing is provided with a first limiting groove (101), and the upper side of the hook strip portion is provided with a first limiting convex Block, the first limiting protrusion is located in the first limiting slot (101).
The cable connector assembly according to claim 1, wherein the locking member (7) is hinged on the second housing (2) via a shaft (6), and the locking member (7) is locked The spring between the strip and the second housing (2) is a conical spring.
The cable connector assembly according to claim 1, characterized in that: one end of the first shell (1) and the second shell (2) is also provided with a net tail part (8), and the net The tail part (8) is fixed on the cable (11).
The cable connector assembly according to claim 1, characterized in that: an inner mold (5) is further provided between the first shell (1) and the second shell (2), and the inner mold ( The bottom of 5) is provided with a notch (51), the second housing (2) is provided with a protruding strip (21), and the protruding strip (21) is clamped in the notch (51).
The cable connector assembly according to claim 1, characterized in that: the first shell (1) and the second shell (2) are made of aluminum alloy, and the first shell (1) and the second shell (1) are made of aluminum alloy. The second shell (2) is fixed by rivets (10).
The cable connector assembly according to claim 1, characterized in that the parts of the first shell (1) and the second shell (2) close to the cable end are also wrapped with electromagnetic interference shrapnel (9).
The cable connector assembly according to claim 1, wherein the pull strap (3) is made of plastic material, the unlocking block (4) is metal, and the pulling strap (3) and the unlocking block (4) are made of metal. One piece.