Horizontal latch type secondary anti-reverse plug

Abstract

This utility model relates to a horizontal latch type secondary anti-retraction plug, including a housing; the housing has an installation channel, the width of which is transverse, the axis of which is longitudinal, and the height of which is vertical; a terminal is inserted into the installation channel, and the terminal is connected to the installation channel via a first anti-retraction mechanism; one end of the terminal has a wire harness connection part, and the other end of the terminal has a pin connection part; it also includes a second anti-retraction mechanism; the second anti-retraction mechanism includes an anti-retraction latch, a blocking part on the terminal, and a through hole on the housing; the axis of the through hole is arranged transversely, and the through hole penetrates the installation channel; the anti-retraction latch is inserted into the through hole, and the anti-retraction latch passes laterally through the terminal, and the anti-retraction latch is located on the side of the terminal's blocking part facing the wire harness connection part. This utility model has the characteristics of simple structure, reasonable design, good terminal anti-retraction effect, high structural reliability, and is conducive to improving service life.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a horizontal latch type secondary anti-reverse plug. Background Technology

[0002] The connector consists of a plug and a socket. The plug includes a housing and terminals installed inside the housing. One end of the terminals is connected to a wire harness. After the plug is inserted into the socket, the other end of the terminals connects to the pins inside the socket. When using the connector, to remove the plug from the socket, after releasing the latch between the plug and the socket, due to the small size of the plug, the user typically pulls the wire harness to separate the plug from the socket. To prevent the terminals from disengaging from the housing during the process of unplugging or pushing the plug to connect the terminals and pins, current plugs generally have a spring-loaded locking structure between the terminals and the housing. This spring-loaded locking structure includes spring-loaded claws on the terminals and a locking block inside the housing. The spring-loaded claws and the locking block engage. This structure only provides one-time anti-disengagement. Because the terminals are made of thin copper sheets that have been punched and bent, they are relatively soft. Therefore, when unplugging or pushing the plug to connect the terminals and pins, the spring-loaded claws on the terminals are easily deformed, causing the engagement between the spring-loaded claws and the locking block to fail, resulting in terminal anti-disengagement failure. This leads to low structural reliability and a short service life. Utility Model Content

[0003] The purpose of this utility model is to provide a horizontal latch type secondary anti-retraction plug, which can solve the technical problem that the terminals of existing plugs are easily pulled out of the housing during use.

[0004] The technical solution of this utility model is implemented as follows: a horizontal latch type secondary anti-reverse plug includes a housing; the housing is provided with an installation channel, the width direction of the installation channel is the horizontal direction, the axis direction of the installation channel is the vertical direction, and the height direction of the installation channel is the vertical direction; a terminal is inserted in the installation channel, and the terminal is connected to the installation channel through a first anti-reverse mechanism; one end of the terminal is provided with a wire harness connection part, and the other end of the terminal is provided with a pin connection part; in particular, it also includes a second anti-reverse mechanism; the second anti-reverse mechanism includes an anti-reverse latch, a blocking part provided on the terminal, and a through hole provided on the housing; the hole axis of the through hole is arranged in the horizontal direction, and the through hole is arranged through the installation channel; the anti-reverse latch is inserted in the through hole, the anti-reverse latch passes horizontally through the terminal, and the anti-reverse latch is located on the side of the terminal's blocking part facing the wire harness connection part.

[0005] In this design, the terminals and housing are connected not only by the first anti-retraction mechanism but also by the second anti-retraction mechanism. The anti-retraction latch of the second anti-retraction mechanism is designed to extend horizontally through the terminal. When the device is pulled away from the socket or pushed to connect the pin connection of the terminal to the pin, the blocking part of the terminal will contact the anti-retraction latch after the first anti-retraction mechanism fails. This allows the anti-retraction latch to block the terminal, achieving secondary anti-retraction. The structure has high reliability and is conducive to improving service life.

[0006] One end of the anti-reverse latch has a large head, and a locking part is also provided on the anti-reverse latch; the installation channel is clamped between the large head and the locking part. This ensures that the anti-reverse latch will not detach from the housing after it is installed, so that the anti-reverse latch can effectively block the terminal.

[0007] When in use, the two sides of the wire harness connector in the lateral direction bend towards the middle to clamp the wire harness. The locking part is on the side of the anti-retrieval latch facing the wire harness connector. The locking part will not interfere with the wire harness connector. The locking part is not designed to face the blocking part. When in use, the blocking part will not collide with the locking part and cause damage to the locking part.

[0008] A clearance step groove is formed on the side of the anti-retractor facing the wire harness connection portion, and this clearance step groove is located on the side of the anti-retractor facing the terminal. By providing the clearance step groove design, the wire harness will not obstruct the anti-retractor when it is inserted, making the installation of the anti-retractor smoother and improving production efficiency.

[0009] The perforation is positioned so that the wall of the hole, away from the terminal, extends into the wall of the mounting channel. This design ensures that, after the anti-reverse latch is installed, the side of the anti-reverse latch facing away from the terminal is embedded in the wall of the mounting channel. This prevents the anti-reverse latch from breaking when the terminal collides with it.

[0010] The terminal is constructed from bent metal sheets, with the blocking section consisting of a double-layered metal sheet structure formed by bending and stacking the two sides of the terminal in the lateral direction. This structure enhances the structural strength of the blocking section, making it less prone to deformation during application.

[0011] Furthermore, there are at least two installation channels, all of which are arranged side by side in the lateral direction; through holes are provided through each installation channel; anti-reverse latches pass laterally through each terminal, and the anti-reverse latches are located on the side of the blocking part of each terminal facing the wire harness connection part.

[0012] The first anti-reverse mechanism includes an elastic locking block disposed within the installation channel and a locking hole disposed on the terminal; the elastic locking block is located on the side of the terminal opposite to the anti-reverse latch, and the elastic locking block and the locking hole are engaged together. The elastic locking block is disposed on the housing, and the terminal has a locking hole design. The housing is made of rigid plastic material, so that the elastic locking block is not easily deformed, making it less likely for the first anti-reverse mechanism to fail.

[0013] The outer surface of the housing is equipped with a locking spring arm. When in use, after this solution is inserted into the socket, the locking spring arm of the housing engages with the socket, preventing the solution from easily separating from the socket.

[0014] The advantages of this utility model are: simple structure, reasonable design, good anti-return effect of terminals, high structural reliability, and improved service life. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an embodiment.

[0016] Figure 2 This is a top view of the structure of an embodiment.

[0017] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure along the AA direction.

[0018] Figure 4 This is a schematic diagram of the disassembly and assembly structure for an embodiment.

[0019] Figure 5 This is a schematic diagram of the terminal structure in an embodiment.

[0020] Explanation of reference numerals in the attached drawings: 1-Housing; 11-Mounting channel; 12-Anti-locking spring arm; 2-Terminal; 21-Wire harness connection part; 22-Pin connection part; 3-First anti-recoil mechanism; 31-Elastic locking block; 32-Locking hole; 4-Second anti-recoil mechanism; 5-Anti-recoil latch; 51-Large head; 52-Mounting part; 53-Avoidance step groove; 6-Blocking part; 7-Perforation. Detailed Implementation

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the horizontal latch type secondary anti-reverse plug of this embodiment includes a housing 1; the housing 1 is provided with three mounting channels 11, the width direction of the mounting channels 11 is the horizontal direction, all mounting channels 11 are arranged side by side in the horizontal direction, the axis direction of the mounting channels 11 is the vertical direction, and the height direction of the mounting channels 11 is the vertical direction; each mounting channel 11 has a terminal 2 inserted in it, and each terminal 2 is connected to the mounting channel 11 through a first anti-reverse mechanism 3; one end of each terminal 2 is provided with a wire harness connection part 21, and the other end of the terminal 2 is provided with a pin connection part 22; it also includes a second anti-reverse mechanism 4; the second anti-reverse mechanism 4 includes an anti-reverse latch 5, a blocking part 6 provided on each terminal 2, and a through hole 7 provided on the housing 1; the axis of the hole 7 is arranged in the horizontal direction, and the through hole 7 is provided through each mounting channel 11; the anti-reverse latch 5 is inserted in the through hole 7, the anti-reverse latch 5 passes horizontally through each terminal 2, and the anti-reverse latch 5 is located on the side of the blocking part 6 of each terminal 2 facing the wire harness connection part 21. With this design, when the horizontal latch type secondary anti-return plug is pulled away from the socket or pushed to connect the pin connection part 22 of terminal 2 with the pin, after the first anti-return mechanism 3 fails, the blocking part 6 of terminal 2 will touch the anti-return latch 5, so that the anti-return latch 5 can block terminal 2, realizing secondary anti-return. The structure has high reliability and is conducive to improving service life.

[0022] To make the assembly structure between the anti-retracting latch 5 and the housing 1 more reasonable, such as Figure 4 As shown, one end of the anti-retracting latch 5 is provided with a large head 51, and a locking part 52 is also provided on the anti-retracting latch 5; an installation channel 11 is clamped between the large head 51 and the locking part 52. This ensures that after the anti-retracting latch 5 is installed, the anti-retracting latch 5 will not detach from the housing 1, so that the anti-retracting latch 5 can effectively block the terminal 2.

[0023] When in use, the two sides of the wire harness connector 21 in the lateral direction are bent towards the center to clamp the wire harness, such as... Figure 4 As shown, the mounting part 52 is located on the side of the anti-retracting latch 5 facing the wire harness connection part 21. During assembly, the mounting part 52 will not interfere with the wire harness connection part 21. The mounting part 52 is not designed to face the blocking part 6. During use, the blocking part 6 will not collide with the mounting part 52 and cause damage to the mounting part 52.

[0024] like Figure 2 , Figure 3 , Figure 4 As shown, a clearance step groove 53 is formed on the side of the anti-retracting latch 5 facing the wire harness connection portion 21. This clearance step groove 53 is located on the side of the anti-retracting latch 5 facing the terminal 2. By providing the clearance step groove 53, the wire harness will not obstruct the anti-retracting latch 5 when it is inserted, making the installation of the anti-retracting latch 5 smoother and improving production efficiency.

[0025] like Figure 2 , Figure 3 As shown, the perforation 7 extends into the channel wall of the mounting channel 11 away from the hole wall of the terminal 2. With this design, after the anti-retracting latch 5 is installed, the side of the anti-retracting latch 5 facing away from the terminal 2 is embedded in the channel wall of the mounting channel 11, so that when the terminal 2 collides with the anti-retracting latch 5, the housing 1 will press against the anti-retracting latch 5, so that the anti-retracting latch 5 will not be broken.

[0026] To make the structure of terminal 2 more reasonable, such as Figure 2 , Figure 3 , Figure 4 As shown, terminal 2 is formed by bending a metal sheet, and the blocking part 6 is a double-layer metal sheet structure formed by bending and stacking both sides of terminal 2 in the lateral direction. This structure improves the structural strength of the blocking part 6, making it less prone to deformation during application.

[0027] To make the structure of the first anti-recoil mechanism 3 more reasonable, such as Figure 2 , Figure 3 , Figure 5 As shown, the first anti-recoil mechanism 3 includes an elastic locking block 31 disposed within the mounting channel 11 and a locking hole 32 disposed on the terminal 2; the elastic locking block 31 is located on the side of the terminal 2 facing away from the anti-recoil latch 5, and the elastic locking block 31 and the locking hole 32 are engaged together. The design of the elastic locking block 31 being disposed on the housing 1 and the locking hole 32 being disposed on the terminal 2, and the housing 1 being made of rigid plastic material, makes the elastic locking block 31 less prone to deformation, thus making the first anti-recoil mechanism 3 less prone to failure.

[0028] like Figure 1 , Figure 2 , Figure 3 As shown, a locking spring arm 12 is provided on the outer surface of the housing 1. When in use, after the horizontal latch type secondary anti-reverse plug is inserted into the socket, the locking spring arm 12 of the housing 1 is used to lock with the socket, so that the horizontal latch type secondary anti-reverse plug will not easily separate from the socket.

Claims

1. A horizontal latch type secondary anti-reverse plug, comprising a housing; the housing having an installation channel, the width direction of which is transverse, the axis direction of which is longitudinal, and the height direction of which is vertical; a terminal is inserted within the installation channel, and the terminal is connected to the installation channel via a first anti-reverse mechanism; one end of the terminal has a wire harness connection portion, and the other end of the terminal has a pin connection portion; characterized in that: It also includes a second anti-retraction mechanism; the second anti-retraction mechanism includes an anti-retraction latch, a blocking part provided on the terminal and a through hole provided on the housing; the hole axis of the through hole is arranged in the transverse direction, and the through hole is provided through the installation channel; the anti-retraction latch is inserted in the through hole, the anti-retraction latch passes through the terminal laterally, and the anti-retraction latch is located on the side of the terminal's blocking part facing the wire harness connection part.

2. The cross-latching secondary retention plug of claim 1, wherein: One end of the anti-retracting latch is provided with a large head, and a locking part is also provided on the anti-retracting latch; the installation channel is clamped between the large head and the locking part.

3. The cross-latching secondary retention plug of claim 2, wherein: The mounting part is located on the side of the anti-reverse latch facing the wire harness connection part.

4. The cross-latching secondary retention plug of claim 1, wherein: A clearance step groove is formed on the side of the anti-return latch facing the wire harness connection portion, and the clearance step groove is located on the side of the anti-return latch facing the terminal.

5. The cross-latching secondary retention plug of claim 1, wherein: The hole wall is set away from the terminal and extends into the channel wall of the mounting channel.

6. The cross-latching secondary retention plug of claim 1, wherein: The terminal is made of bent metal sheets, and the blocking part is a double-layer metal sheet structure formed by bending and stacking the two sides of the terminal in the lateral direction.

7. The crossbar secondary retention plug of any one of claims 1 to 6, wherein: There are at least two installation channels, all of which are arranged side by side in the horizontal direction; through holes are provided through each installation channel; anti-return latches pass horizontally through each terminal, and the anti-return latches are located on the side of the blocking part of each terminal facing the wire harness connection part.

8. The cross-latching secondary retention plug of claim 1, wherein: The first anti-retrace mechanism includes an elastic locking block disposed in the installation channel and a locking hole disposed on the terminal; the elastic locking block is located on the side of the terminal facing away from the anti-retrace latch, and the elastic locking block and the locking hole are engaged together.

9. The cross-latching secondary retention plug of claim 1, wherein: The outer surface of the housing is equipped with a locking spring arm.

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