A plastic inner buckle structure of an electrical connector

Abstract

The utility model discloses a plastic piece inner buckle structure of electric connector relates to electric connector technical field, including plastic piece, the both sides of plastic piece are connected with the boss, the die is set up in the plastic piece in advance and is buried, the side of plastic piece is provided with the spigot, be provided with the reverse buckle in the spigot, this application sets up the die in the plastic piece in advance and is buried, and the die is corroded after plastic piece forming with strong acid, make the reverse buckle form in the spigot of plastic piece, solved the plastic piece at present in the forming and cannot form the reverse buckle in the spigot, can only subsequently carry out the processing problem additionally, is favorable to the production efficiency of plastic piece improves, this application installs the elastic card piece in the reverse buckle and installs and fixes the prong, can improve the stability after prong installation, solved the installation mode that the prong is directly inserted with the spigot of traditional direct and can be caused prong loose even the problem of falling off due to external force, is favorable to the stability of prong installation improves.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, specifically to an internal snap-fit ​​structure for a plastic part of an electrical connector. Background Technology

[0002] Electrical connectors are fundamental components in electronic systems that enable circuit connections and signal transmission. They mainly consist of pins mounted on plastic parts, allowing electrical connectors to connect with other devices for signal transmission. Currently, it is impossible to form undercuts in the slots during the molding of plastic parts. They can only be processed separately afterward. This increases the workload of manufacturing plastic parts. Moreover, it is not convenient to control and adjust the size of the undercuts through processing, which leads to low production efficiency in the manufacturing process of plastic parts. Furthermore, the traditional method of directly plugging the pins into the socket may cause the pins to loosen or even fall off due to external force during the operation of the connector, resulting in poor stability of the pins after installation. Utility Model Content

[0003] To address the above problems, this utility model provides an internal snap-fit ​​structure for the plastic parts of an electrical connector, thus solving the aforementioned issues.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a plastic part inner buckle structure for an electrical connector, comprising a plastic part, with bosses connected to both sides of the plastic part, a mold pre-embedded in the plastic part, and a plurality of insertion slots opened on one side of the plastic part, with undercuts provided in the insertion slots, and the mold located in the undercuts; The mold is made of copper alloy and can be corroded by strong acid, which will expose the undercut. An open ring is installed in the inverted buckle, and several through grooves are opened on the open ring, with elastic clips provided in the through grooves.

[0005] Preferably, the buckle includes an upper clamping platform and a lower clamping platform, with a clamping groove between the upper clamping platform and the lower clamping platform.

[0006] Preferably, the inner diameter of the upper card platform is larger than the inner diameter of the lower card platform.

[0007] Preferably, pins are installed in several of the sockets.

[0008] Preferably, a retaining ring is provided on the outside of the pin, and the retaining ring is connected to the lower retaining platform.

[0009] Preferably, a plurality of the elastic clips are used to position and install the pins.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This application solves the problem that currently plastic parts cannot form undercuts in the insertion slots during molding and require additional processing later. The size of the module is also easier to control, which can meet the needs of different undercut sizes during plastic part production and improve the production efficiency of plastic parts. 2. This application uses an elastic clip installed in the inverted position to fix the pins, which can improve the stability of the pins after installation. This solves the problem that the traditional method of directly plugging the pins into the socket may cause the pins to loosen or even fall off due to external force, thus improving the stability of the pin installation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the present invention before the pins are installed; Figure 2 This is a cross-sectional view of the plastic part mold of this utility model; Figure 3 This is a schematic cross-sectional view of the plastic part after mold corrosion according to this utility model; Figure 4 This is a schematic diagram of the inverted cross-sectional structure of this utility model; Figure 5 This is a schematic diagram of the elastic clip of this utility model installed on the inverted structure; Figure 6 This is a schematic diagram of the pin mounting structure of this utility model; Figure 7 This is a schematic diagram of the elastic clip structure of this utility model; Figure 8 This is a schematic diagram of the overall structure of the present invention after the pins are installed.

[0012] The diagram is labeled as follows: 1. Plastic part; 2. Boss; 3. Mold; 4. Undercut; 401. Upper clamping platform; 402. Clip groove; 403. Lower clamping platform; 5. Insert; 6. Opening ring; 7. Through groove; 8. Elastic clamp; 9. Pin; 10. Clamping ring. Detailed Implementation

[0013] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but should not be used to limit the scope of this utility model.

[0014] Please see Figures 1 to 8A plastic part with an internal snap-fit ​​structure for an electrical connector includes a plastic part 1, with bosses 2 connected to both sides of the plastic part 1. The plastic part 1 is equivalent to the base of the electrical connector. The plastic part 1 can support structures such as pins 9. With the help of the bosses 2, it is also convenient for personnel to hold the electrical connector for connection and other operations. A mold 3 is embedded in the plastic part 1. Several sockets 5 are opened on one side of the plastic part 1. An undercut 4 is provided in the socket 5. The mold 3 is located in the undercut 4. The material of mold 3 is copper alloy (such as leaded brass HPb59-1). Mold 3 can be corroded by strong acid (concentrated nitric acid), and the inverted part 4 will be exposed. It should be noted that when strong acid corrodes mold 3, the corrosion time is less than five minutes and the mold will be corroded. At the same time, strong acid will not corrode plastic parts. Specifically, the main components of copper alloys are metallic copper and other metallic elements. The core reason why they are corroded by strong acids is that the metal reacts chemically with the strong acid. The main component of plastic part 1 is a high molecular polymer, whose molecular structure is completely different from that of metal, which determines their resistance to strong acids. More specifically, copper alloys are composed of metallic atoms, and the metallic bonds are easily broken by strong acids or hydrogen ions, resulting in oxidative dissolution or electrochemical corrosion, which is an active reactive degradation process. Plastic part 1 is composed of molecular chains with stable covalent bonds. It lacks active sites that react with strong acids, has high chemical stability, and may only age slowly under extreme conditions. It belongs to the passive tolerance type of stability. Therefore, the corrosion of copper alloy by strong acid is an inevitable result driven by chemical activity, while the effect on plastic part 1 is significantly reduced due to the material stability, with no corrosion. An open ring 6 is installed in the inverted buckle 4. The mold 3 is pre-embedded during the manufacturing process. After the plastic part 1 is formed, the mold 3 is corroded away. At this time, a large hollow structure like the inverted buckle 4 will be formed in the insertion port 5. Then, the personnel install the open ring 6 from the top of the insertion port 5 into the inverted buckle 4. It should be noted that the open ring 6 and the elastic clip 8 are made of stainless steel. Stainless steel has good elasticity and plasticity at room temperature, stable rebound performance after deformation, and is resistant to acids, alkalis and corrosion. The opening of the open ring 6 provides space for its deformation. The personnel compress the open ring 6 and install it into the buckle 4 through the insertion port 5. When the open ring 6 enters the buckle 4, it will automatically reset and cooperate with the buckle groove 402, so as to install the open ring 6 and the elastic clip 8 into the buckle 4. The open ring 6 has several through grooves 7, and the through grooves 7 are provided with elastic clips 8. When the pin 9 is inserted into the insertion port 5 for installation, the outside of the pin 9 will squeeze the elastic clip 8. After the pin 9 reaches the appropriate position, the elastic clip 8 will firmly fix the pin 9 against the deformation force. It should be noted that the elastic clip 8 is tilted downwards, so when the pin 9 is inserted downwards during installation, it can easily push the elastic clip 8 open, causing the elastic clip 8 to deform. When the pin 9 becomes loose, it will come into contact with the tilting direction of the elastic clip 8. The elastic clip 8 not only firmly fixes the pin 9, but is also affected by the tilting direction to resist the force when the pin 9 becomes loose. This solves the problem that the traditional installation method of directly plugging the pin 9 into the socket 5 may cause the pin 9 to become loose or even fall off due to external force.

[0015] The inverted 4 includes an upper card platform 401 and a lower card platform 403, with a locking groove 402 between the upper card platform 401 and the lower card platform 403.

[0016] The inner diameter of the upper mounting plate 401 is larger than that of the lower mounting plate 403, so that the pin 9 can be installed from above the socket 5. After being installed in the appropriate position, the retaining ring 10 on the outside of the pin 9 will abut against the lower mounting plate 403 to achieve positioning. It should be noted that because the inner diameter of the upper mounting plate 401 is larger than that of the lower mounting plate 403, the retaining ring 10 can pass normally through the upper mounting plate 401, but is limited by the lower mounting plate 403 when it reaches the lower mounting plate 403.

[0017] Several sockets 5 are equipped with pins 9.

[0018] A retaining ring 10 is provided on the outside of the pin 9, and the retaining ring 10 is connected to the lower retaining platform 403.

[0019] Several flexible clips 8 are used to position and install the pins 9.

[0020] When using this utility model: First, the mold 3 is pre-embedded during the manufacturing process. Then, after the plastic part 1 is formed, the mold 3 is corroded away. At this time, a large hollow structure such as the inverted buckle 4 will be formed in the socket 5. Then, the personnel install the opening ring 6 from the top of the socket 5 into the inverted buckle 4. Secondly, when strong acid corrodes mold 3, it can corrode the mold within five minutes, while the strong acid does not corrode the plastic parts. The main components of copper alloy are metallic copper and other metallic elements. The core reason for its corrosion by strong acid is the chemical reaction between the metal and the strong acid. The main components of plastic part 1 are high molecular polymers, whose molecular structure is completely different from that of metals, which determines their resistance to strong acid. Copper alloy is composed of metal atoms, and the metal bonds are easily oxidized by strong acid or destroyed by hydrogen ions, resulting in oxidative dissolution or electrochemical corrosion, which is an active reaction-type destruction. Plastic part 1 is composed of molecular chains with stable covalent bonds, lacking active sites for reaction with strong acid, and has high chemical stability. It may only undergo slow aging under extreme conditions, which is a passive tolerance-type stability. Therefore, the corrosion of copper alloy by strong acid is an inevitable result driven by chemical activity, while the impact on plastic part 1 is significantly weakened due to the material stability, with no corrosion. Then, the open ring 6 and the elastic clip 8 are made of stainless steel. Stainless steel has good elasticity and plasticity at room temperature, stable rebound performance after deformation, and is resistant to acid and alkali and corrosion. The opening of the open ring 6 provides space for its deformation. The personnel compress the open ring 6 and install it into the inverted buckle 4 through the socket 5. When the open ring 6 enters the inverted buckle 4, it will automatically reset and cooperate with the buckle groove 402, so as to install the open ring 6 and the elastic clip 8 into the inverted buckle 4. When the pin 9 is inserted into the socket 5 for installation, the outside of the pin 9 will squeeze the elastic clip 8. After the pin 9 reaches the appropriate position, the elastic clip 8 will resist the deformation force to firmly fix the pin 9. Finally, the elastic clip 8 is tilted downwards, so when the pin 9 is inserted downwards during installation, it can easily push the elastic clip 8 open, causing the elastic clip 8 to deform. When the pin 9 becomes loose, it will resist the tilting direction of the elastic clip 8. The elastic clip 8 not only firmly fixes the pin 9, but is also affected by the tilting direction to resist the force when the pin 9 becomes loose. This solves the problem that the traditional installation method of directly plugging the pin 9 into the socket 5 may cause the pin 9 to become loose or even fall off due to external force.

[0021] 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 plastic part inner buckle structure for an electrical connector, comprising a plastic part (1), wherein bosses (2) are connected to both sides of the plastic part (1), characterized in that: A mold (3) is embedded in the plastic part (1), and several insertion slots (5) are opened on one side of the plastic part (1). An undercut (4) is provided in the insertion slot (5), and the mold (3) is located in the undercut (4). The mold (3) is made of copper alloy. The mold (3) can be corroded by strong acid, and the undercut (4) will be exposed and formed. An open ring (6) is installed in the buckle (4), and several through grooves (7) are provided on the open ring (6), and elastic clips (8) are provided in the through grooves (7).

2. The plastic part inner buckling structure of an electrical connector according to claim 1, characterized in that: The inverted buckle (4) includes an upper buckle platform (401) and a lower buckle platform (403), with a buckle groove (402) between the upper buckle platform (401) and the lower buckle platform (403).

3. The plastic part inner buckling structure of an electrical connector according to claim 2, characterized in that: The inner diameter of the upper carding platform (401) is larger than the inner diameter of the lower carding platform (403).

4. The plastic part inner buckling structure of an electrical connector according to claim 1, characterized in that: Pins (9) are installed in several of the aforementioned sockets (5).

5. The plastic part inner buckling structure of an electrical connector according to claim 4, characterized in that: The pin (9) is provided with a retaining ring (10) on its outside, and the retaining ring (10) is connected to the lower retaining platform (403).

6. The plastic part inner buckling structure of an electrical connector according to claim 1, characterized in that: Several of the aforementioned elastic clips (8) are used to position and install the pins (9).

Images