A wire-to-board connector with a backoff prevention structure

Abstract

This utility model discloses a wire-to-board connector with an anti-retraction structure, relating to the technical field of wire-to-board connectors. It includes a female connector body, a male connector body mating to the mating side of the female connector body, and a connecting terminal mating to the rear side of the female connector body. An anti-retraction structure is provided between the male and female connector bodies. The anti-retraction mechanism prevents the male and female connector bodies from loosening through the mutual engagement of the female connector protrusion and the male connector mating groove. This wire-to-board connector with an anti-retraction structure increases the bonding force between the two through the mutual engagement of the female connector protrusion and the male connector mating groove, preventing separation and improving the male-female mating force. It also increases the difficulty of demolding. The use of an undercut molding process further increases the mating strength of the male and female connector bodies, making them less prone to separation and preventing the stability of the male-female mating contact from being affected by adverse environments such as vibration or impact during use.

Description

Technical Field

[0001] This utility model relates to the field of wire-to-board connector technology, specifically a wire-to-board connector with an anti-retraction structure. Background Technology

[0002] Wire-to-board connectors are standardized interfaces that enable electrical connections between wires (flexible cables) and printed circuit boards (PCBs), transmitting signals and power through plug-in or soldered structures.

[0003] Prior art (Chinese Patent Publication No. CN115296085A, Publication Date: 2022-11-04) discloses a wire-to-board connector, comprising: a male connector and a female connector; wherein the male connector has at least one male cantilever latch; wherein the female connector has at least one female cantilever latch opening. The male connector is inserted into the female connector, such that at least one male cantilever latch engages with at least one female cantilever latch opening to achieve self-locking. Using the above-described wire-to-board connector improves the contact reliability of the wire-to-board connector and facilitates stable connection.

[0004] While existing technologies can improve the contact reliability of wire-to-board connectors, their plastic frame openings have smooth inner walls and no limiting structures. The mating of the male and female connectors relies entirely on the clamping between the terminals, and they will detach under external force.

[0005] Therefore, we propose a wire-to-board connector with an anti-retrograde structure to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a wire-to-board connector with an anti-retraction structure to solve the problem mentioned in the background art that the inner wall of the plastic frame is smooth, there is no limiting structure, and the male and female heads rely entirely on the clamping between the terminals to detach when subjected to external force.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a wire-to-board connector with an anti-retraction structure, comprising a female connector body, a male connector body being mated to the mating side of the female connector body, and a connecting terminal being mated to the rear side of the female connector body. An anti-retraction structure is provided between the male connector body and the female connector body. The anti-retraction mechanism prevents the male connector body and the female connector body from becoming loose through the mutual cooperation between the female connector protrusion and the male connector mating groove. Furthermore, an abutment mechanism is provided inside the male connector body, which limits the connection terminal through the elastic force of the elastic card it contains.

[0008] Furthermore, the connecting terminals are arranged at equal intervals on the rear side of the female connector body, and the end of the connecting terminals extends to the inner side of the male connector body.

[0009] Furthermore, the anti-retraction structure includes a female seat protrusion, which is disposed inside the docking portion of the female seat body. The female seat protrusion is arranged in a trapezoidal structure when viewed from the side, and two sets of female seat protrusions are symmetrically distributed about the center point of the female seat body.

[0010] Furthermore, a male seat docking groove is provided on the lower outer wall of the docking part of the male seat body, and two sets of male seat docking grooves are symmetrically distributed about the center point of the male seat body.

[0011] Furthermore, the male connector mating groove and the female connector protrusion are respectively set one-to-one, and the male connector mating groove is used to engage the female connector protrusion. The male connector mating groove and the female connector protrusion cooperate with each other to improve the connection force of the connector.

[0012] Furthermore, the abutment mechanism includes a docking ring, which is disposed on the inner side of the female body, and the docking ring is disposed in a one-to-one correspondence with the connecting terminal.

[0013] Furthermore, an elastic card is provided on the side of the docking ring near the connecting terminal, and two sets of elastic cards are symmetrically distributed about the center of the docking ring. The connecting terminal is located between the two sets of elastic cards, and the elastic cards are bent towards the connecting terminal.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. After the male and female bodies are aligned, the female protrusion engages with the male mating groove. The mutual cooperation between the female protrusion and the male mating groove increases the bonding force between the two, preventing separation and improving the mating force between the male and female bodies, thus increasing the difficulty of demolding.

[0016] 2. The undercut molding process is adopted to increase the mating strength between the male and female seats, making them less likely to separate and preventing the stability of the male and female seats from being affected by adverse environments such as vibration or impact during use;

[0017] 3. An elastic clip is provided on the inner side of the mating ring. When the connecting terminal is mated to the female body, the end of the connecting terminal extends into one side of the male body. The positions of the mating ring and the connecting terminal correspond one-to-one. After the connecting terminal is mated, the elastic clip provided on the inner side of the mating ring can clamp the connecting terminal under the drive of its own elastic force, thereby preventing the connecting terminal from becoming loose after assembly. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the three-dimensional unfolded bottom view of the present invention;

[0020] Figure 3 This is a top view of the three-dimensional unfolded structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the elastic card of this utility model;

[0022] Figure 5 This is a three-dimensional sectional view of the present invention.

[0023] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1. Male connector body; 2. Female connector body; 3. Female connector protrusion; 4. Male connector mating groove; 5. Connecting terminal; 6. Mating ring; 7. Flexible clip. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: As Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 The present invention provides the following technical solution: a wire-to-board connector with an anti-retraction structure, which discloses an anti-retraction mechanism to prevent loosening between the male connector body 1 and the female connector body 2: including a female connector body 2, a male connector body 1 is disposed on the mating side of the female connector body 2, a connecting terminal 5 is disposed on the rear side of the female connector body 2, an anti-retraction structure is provided between the male connector body 1 and the female connector body 2, and the anti-retraction mechanism prevents loosening between the male connector body 1 and the female connector body 2 through the mutual cooperation of the female connector protrusion 3 and the male connector mating groove 4 included therein, the connecting terminal 5 is arranged at equal intervals about the rear side of the female connector body 2, and the end side of the connecting terminal 5 extends to the inner side of the male connector body 1, the lower outer wall of the mating part of the male connector body 1 is provided with a male connector mating groove 4, and two sets of male connector mating grooves 4 are symmetrically distributed about the center point of the male connector body 1.

[0027] After the male body 1 and the female body 2 are aligned, the female protrusion 3 engages with the male mating groove 4. The mutual cooperation between the female protrusion 3 and the male mating groove 4 increases the bonding force between the two, preventing separation and improving the mating force between the male and female. This also increases the difficulty of demolding. The undercut molding process increases the mating strength between the male body 1 and the female body 2, making them less prone to separation. This also prevents the stability of the mating contact between the male and female from being affected by adverse environments such as vibration or impact during use.

[0028] Example 2: Figure 4 and Figure 5 The technical solution shown is provided by the present utility model as follows: a wire-to-board connector with an anti-retraction structure, which discloses an abutting mechanism to limit the connection terminal 5: the male body 1 is also provided with an abutting mechanism, which limits the connection terminal 5 through the elastic force of the elastic card 7 contained therein. The abutting mechanism includes a mating ring 6, which is disposed on the inner side of the female body 2, and the mating ring 6 and the connection terminal 5 are respectively arranged in a one-to-one correspondence. An elastic card 7 is provided on the side of the mating ring 6 near the connection terminal 5, and two sets of elastic cards 7 are symmetrically distributed about the center of the mating ring 6. The connection terminal 5 is located between the two sets of elastic cards 7, and the elastic cards 7 are bent towards the connection terminal 5.

[0029] An elastic card 7 is provided on the inner side of the docking ring 6. When the connecting terminal 5 is docked to the female body 2, the end of the connecting terminal 5 extends into one side of the male body 1. The positions of the docking ring 6 and the connecting terminal 5 correspond one-to-one. After the connecting terminal 5 is docked, the elastic card 7 provided on the inner side of the docking ring 6 can clamp the connecting terminal 5 under the drive of its own elastic force, thereby preventing the connecting terminal 5 from becoming loose after assembly.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A back-out prevention structure of a wire-to-board connector, comprising a female housing (2), a male housing (1) is arranged in butt joint on the butt joint side of the female housing (2), and a connecting terminal (5) is arranged in butt joint on the rear side of the female housing (2), characterized in that: An anti-retraction structure is provided between the male body (1) and the female body (2). The anti-retraction mechanism prevents the male body (1) and the female body (2) from becoming loose through the mutual cooperation between the female protrusion (3) and the male docking groove (4). The male body (1) is also provided with an abutment mechanism inside. The abutment mechanism limits the connection terminal (5) through the elastic force of the elastic card (7) it contains.

2. The anti-retraction structure of the wire-to-board connector according to claim 1, characterized in that: The connecting terminals (5) are arranged at equal intervals on the rear side of the female body (2), and the end side of the connecting terminals (5) extends to the inner side of the male body (1).

3. The anti-retraction structure of the wire-to-board connector according to claim 1, characterized in that: The anti-retraction structure includes a female seat protrusion (3), which is located inside the docking part of the female seat body (2). The female seat protrusion (3) is arranged in a trapezoidal structure when viewed from the side, and two sets of female seat protrusions (3) are symmetrically distributed about the center point of the female seat body (2).

4. A wire-to-board connector with an anti-retraction structure according to claim 3, characterized in that: The male seat body (1) has a male seat docking groove (4) on the lower outer wall of the docking part, and the male seat docking groove (4) is symmetrically distributed in two sets about the center point of the male seat body (1).

5. A wire-to-board connector with an anti-retraction structure according to claim 4, characterized in that: The male connector groove (4) and the female connector protrusion (3) are positioned in a one-to-one correspondence. The male connector groove (4) is used to engage with the female connector protrusion (3). The male connector groove (4) and the female connector protrusion (3) cooperate with each other to improve the bonding force of the connector.

6. A wire-to-board connector with an anti-retraction structure according to claim 2, characterized in that: The contact mechanism includes a docking ring (6), which is disposed on the inner side of the female body (2), and the docking ring (6) is disposed in a one-to-one correspondence with the connecting terminal (5).

7. A wire-to-board connector with an anti-retraction structure according to claim 6, characterized in that: The docking ring (6) is provided with an elastic card (7) on the side near the connecting terminal (5), and two sets of elastic cards (7) are symmetrically distributed about the center of the docking ring (6). The connecting terminal (5) is located between the two sets of elastic cards (7), and the elastic cards (7) are bent towards the connecting terminal (5).

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