Fixing structure of connector

A fixing structure of a connector is disclosed. The connector includes an insert portion and multiple wires connected to the insert portion. The fixing structure includes a wire binding block, a lower shell and an upper shell disposed with multiple first engaging structures. The lower shell is disposed with multiple second engaging structures separately corresponding to the first engaging structures and connected with the upper shell to form a chamber for receiving the connector and form a wiring hole for being passed by the wires. The wires are extended from the insert portion toward the wiring hole to form a bend section and a curve section in the chamber. The wire binding block is fixed on the curve section of the wires and clamped by the upper shell and the lower shell through engagement of the first engaging structures and the second engaging structures.

BACKGROUND

Technical Field

The disclosure relates to a fixing structure, particularly to a fixing structure of a connector.

Related Art

The related-art connectors have a horizontal type and a vertical type for satisfying various spaces and arrangements. The direction of terminals and the wire outgoing direction of wires of the horizontal-type connectors are in the same horizontal direction, and the direction of terminals and the wire outgoing direction of wires of the vertical-type connectors are perpendicular to each other to accomplish extensiveness of being installed in different circumstances.

However, the vertical-type connectors need to bend the wires 90 degrees, so the lengths of the wires after being bent are inconsistent due to different bending degrees. Thus, in order to ensure that the lengths of the wires projecting from the case are the same, the wires having different lengths after being bent are pressed into the case. That causes that the wires in the case form a curve section. The curve section pushes the case outward because of irregular distortion, and makes the case difficult to be engaged and fixed or makes the wires inside the case be pulled out when the wires are unintentionally pulled. This is an issue to be resolved.

In view of this, the inventors have devoted themselves to the above-mentioned related art, researched intensively and cooperated with the application of science to try to solve the above-mentioned problems. Finally, the disclosure which is reasonable and effective to overcome the above drawbacks is provided.

SUMMARY

An object of the disclosure is to effectively fix the flexed wires to avoid the case being opened when the wires are pulled.

To accomplish the above object, the disclosure provides a fixing structure of a connector. The connector includes an insert portion and multiple wires connected to the insert portion. The fixing structure includes a wire binding block, an upper shell and a lower shell. The upper shell is disposed with multiple first engaging structures. The lower shell is disposed with multiple second engaging structures separately corresponding to the first engaging structures and connected with the upper shell to form a chamber receiving the connector and a wiring hole being passed by the wires. The wires are extended from the insert portion toward the wiring hole to form a bend section and a curve section in the chamber. The wire binding block is fixed on the curve section of the wires and clamped by the upper shell and the lower shell through engagement of the first engaging structures and the second engaging structures.

The disclosure further has following functions. By the engaging blocks and the engaging holes, the connector and the upper shell may be preliminarily fixed. By each hook and each positioning sheet engaging with each clamping trough and each positioning trough, the upper shell and the lower shell may be fixed. By the stopping blocks formed on two sides of the wire binding block, the wire binding block and the wires may be prevented from being pulled out of the case when the wires are pulled outward.

DETAILED DESCRIPTION

The disclosure provides a fixing structure of a connector. Please refer toFIGS. 1-3. The connector A includes an insert portion A1and multiple wires A2connected to the insert portion A1. The fixing structure includes a wire binding block10, an upper shell20and a lower shell30.

The upper shell20is disposed with multiple first engaging structures21. The lower shell30is disposed with multiple second engaging structures31separately corresponding to the first engaging structures21. The lower shell30is connected with the upper shell20to form a chamber22for receiving the connector A and form a wiring hole32for being passed by the wires A2. The wires A2are extended from the insert portion A1toward the wiring hole32to form a bend section A21and a curve section A22in the chamber22. The wire binding block10is fixed on the curve section A22of the wires A2and clamped by the upper shell20and the lower shell30through engagement of the first engaging structures21and the second engaging structures31.

In detail, the upper shell20is integrally formed (or formed in one piece) by injection molding, and has a top plate23and a sidewall24formed on a side of the top plate23. The sidewall24is formed with an opening241for being passed by the insert portion A1. When assembling, the connector A is inserted to the upper shell20for preliminary fixing to facilitate the connection with the lower shell30. A side of the sidewall24away from the top plate23is extended to form a bottom plate25. The top plate23, the sidewall24and the bottom plate25collectively constitute the chamber22. The bottom plate25is formed with multiple engaging holes251. The connector A is convexly provided with multiple engaging blocks A3corresponding to and engaging with the engaging holes251respectively so as to fix the connector A and the upper shell20.

Please refer toFIGS. 1 and 4. The lower shell30is integrally formed (or formed in one piece) by injection molding, and has a room33for receiving the upper shell20. The inside of the room33is formed with multiple hooks331and multiple positioning sheets332. The bottom plate25is formed with multiple clamping troughs252separately engaged with the hooks331and multiple positioning troughs253separately engaged with the positioning sheets332, so that the upper shell20and the lower shell30may be connected and fixed. Please refer toFIGS. 1 and 5. The room33has a wire binding area333for receiving the wire binding block10. Each first engaging structure21and each second engaging structure31are formed between the wire binding area333and the wiring hole32. Each first engaging structure21is an internal engaging recess and each second engaging structure31is an internal engaging arm correspondingly engaged with each internal engaging recess, so that the upper shell20and the lower shell30may be tightly engaged to enhance the engaging strength at the location of the wire binding block10near the wiring hole32.

Please further refer toFIG. 5. An offset required for the internal engaging arm separating from the internal engaging recess is an overlapping length a of overlapping (stacking) the internal engaging arm and the internal engaging recess. Each internal engaging recess is formed with a stopping wall211to form a distance d between the internal engaging arm and the stopping wall211. The distance d is less than the overlapping length a, so that the internal engaging arm is blocked by the stopping wall211and hard to be separated when the upper shell20and the lower shell30are pulled to separate the internal engaging arm from the internal engaging recess. An external tool is required to push the internal engaging arm rearward to separate the upper shell20and the lower shell30. Such an internal engaging structure may keep the internal engaging arm and the internal engaging recess engaged to avoid unexpected separation of the internal engaging arm and the internal engaging recess and separation of the upper shell20and the lower shell30.

Please refer toFIG. 3. The wire binding block10is integrally formed (or formed in one piece) by injection molding and is formed with a stopping block11protruding from two sides thereof respectively. The sidewall24is formed with a blocking sheet242near the internal engaging recess for abutting against the internal engaging arm. Each stopping block11is arranged corresponding to the blocking sheet242and the internal engaging arm so as to prevent the wire binding block10and the wires A2from being pulled out of the upper shell20and the lower shell30when the wires A2are pulled outward.

Please refer back toFIG. 1. The assembling process of the fixing structure of the disclosure and the connector A is described below. The connector A is placed in the upper shell20for preliminary fixture to make the insert portion A1pass through of the opening241and each engaging block A3being engaged with each engaging hole251, both the upper shell20and the connector A, which are assembled, are placed in the room33of the lower shell30to make each hook331and each positioning sheet332engage with each clamping trough252and each positioning trough253, and each internal engaging recess is being engaged with each internal engaging arm. Thus, the assembling of the fixing structure and the connector A is finished.