Polar terminal of German-style socket and German-style socket

By adopting a U-shaped locking head and hole protection door structure on the German-style socket, the problem of insufficient elasticity and strength of the polarity terminals of traditional sockets is solved, thereby improving the stability and safety of the socket and extending its service life.

CN223797574UActive Publication Date: 2026-01-13WENZHOU BODEN ELECTRIC APPLIANCE
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Patent Information

Application Number
CN202520153068.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-01-13
Estimated Expiration
2035-01-22

AI Technical Summary

Technical Problem

Traditional German-style sockets have insufficient elasticity and strength in their polarized terminals, making them prone to deformation, which can lead to poor contact, safety hazards, and increased socket size.

Method used

The insert is made of a pair of U-shaped bent clips. The long sides of the clips are inclined close together, and the free end is bent in a V-shape to form a socket. It is made of elastic metal sheet and has a hole protection door structure to ensure stable insertion of the plug pins.

Benefits of technology

It improves the elasticity and strength of the socket, increases the insertion and extraction force, avoids excessive current and temperature rise caused by poor contact, reduces the risk of fire, protects the door from dust and water ingress, and extends the product life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The polarity terminal of the German-style socket comprises a terminal main body with jacks at two ends, the two ends of the terminal main body are respectively provided with an insertion core formed by a pair of clamping heads, the clamping heads are bent in a U shape, one end of each clamping head is integrally connected with the terminal main body, the other end of each clamping head is a free end, and the free ends of the pair of clamping heads are matched to form the jacks. The insertion core formed by the pair of clamping heads is good in elasticity, high in strength and easy to recover after deformation.
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Description

Technical Field

[0001] This utility model relates to the field of socket technology, and in particular to a polarity terminal of a German-style socket and a German-style socket. Background Technology

[0002] German, Italian, and French sockets are all power sockets that conform to European standards. While their structures share commonalities, they also have differences. A socket, also known as a power outlet or switch socket, is a receptacle for inserting one or more circuit wires. This allows for easy connection to other circuits. The connection or disconnection of the circuit is achieved through the connection and disconnection between the wires and copper components. Traditional German sockets have straight, strip-shaped polarity terminals, such as those in CN212517614U and CN216413324U sockets. These straight polarity terminals lack elasticity and strength, making them prone to deformation. Deformed terminals can lead to poor contact with the plug, posing a safety hazard. Furthermore, in CN216413324U, lengthening the polarity terminals increases the overall size of the socket. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the prior art by providing a polar terminal for a German-style socket, which consists of a pair of U-shaped bent clips forming the core, resulting in good elasticity, high strength, and easy recovery after deformation.

[0004] The technical solution of this utility model is as follows: A polarity terminal of a German-style socket includes a terminal body with sockets at both ends. Each end of the terminal body has a core consisting of a pair of clips. The clips at both ends of the terminal body are U-shaped bends facing away from each other. The U-shaped clips have a short side and a long side extending relative to the short side. The short side end is integrally connected to the terminal body, and the long side end is a free end. The socket is formed by the cooperation of the free ends of the pair of clips.

[0005] By adopting the above technical solution, the plug core is formed by a pair of U-shaped bent clips, which makes it elastic, strong, and easy to recover after deformation. This increases the insertion and extraction force on the plug pins, increases the product life, and prevents excessive current, excessive product temperature rise and sparks, or even fires due to excessive product temperature caused by poor contact.

[0006] A further feature of this invention is that the long sides of a pair of card heads are inclined close together, and the inclination angle of the long sides is between 0 and 30°.

[0007] The above-mentioned further design provides a better tilting and resisting effect on the plug pins.

[0008] A further feature of this invention is that the free ends of a pair of clips are bent in a V-shape to form insertion holes, and there are inclined guide plates bent outwards on the upper side of the free ends of the pair of clips.

[0009] With the above-mentioned further design, the V-shaped bend facilitates the formation of the socket, and the inclined guide plate facilitates the downward insertion of the plug pins into the socket.

[0010] A further feature of this invention is that the terminal body is made of an elastic metal sheet.

[0011] Another objective of this utility model is to overcome the deficiencies of the prior art by providing a German-style socket.

[0012] The technical solution of this utility model is as follows: a German-style socket, characterized in that it includes a face cover and a bottom shell. The face cover has double-holes. A grounding terminal and a polarity terminal are installed in the bottom shell. The grounding terminal includes a terminal body, which is integrally bent upward to form two pairs of latches. Each single-hole has a locking interface on both sides of its bottom. The two pairs of latches are inserted into the corresponding single-holes through the locking interface. Each single-hole has two pin holes at its bottom. The polarity terminal has two terminals, which are located on both sides of the grounding terminal. The pin holes on the two polarity terminals correspond one-to-one with the pin holes.

[0013] By adopting the above technical solution, the double-hole is used to allow two plugs to be inserted for electrical conduction.

[0014] The technical solution of this utility model is as follows: Each connecting hole is provided with a hole position protection door below it. The hole position protection door includes a door seat, a door panel, and a reset component. The door seat is fastened to the face cover. The door panel is slidably disposed on the door seat. The door panel has a door position corresponding to cover two pin holes. Each door position has a guide surface that is inclined downward. When the plug is inserted, the pins on it abut against the guide surface of the door panel, which can push the door panel to slide to open the two pin holes. The reset component is disposed between the door seat and the door panel and is used to drive the door panel to reset to cover the two pin holes.

[0015] With the above-mentioned further configuration, in the initial state of the socket, the two door positions on the door panel are correspondingly covered below the two pin holes, thereby preventing dust and water from entering and also preventing accidental contact; when in use, the plug is inserted, and the pins on the plug abut against the guide surface of the door position, which can push the door panel to overcome the spring force of the reset component to open the two pin holes. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a specific embodiment of the present utility model;

[0017] Figure 2 This is an exploded view of a specific embodiment of the present utility model;

[0018] Figure 3This is a structural diagram of the grounding terminal according to a specific embodiment of the present utility model;

[0019] Figure 4 This is a structural diagram of the two polarity terminals in a specific embodiment of the present invention;

[0020] Figure 5 This is a diagram of the insert structure in a specific embodiment of the present invention;

[0021] Figure 6 This is a structural diagram of the hole position protection door according to a specific embodiment of the present utility model.

[0022] In the figure: Terminal body 1, socket 11, insert 12, clip 121, free end 1211, short side 121a, long side 121b, oblique guide plate 1212, face cover 2, connecting hole 21, card interface 211, pin hole 212, bottom shell 3, grounding terminal 4, terminal body 41, snap pin 42, polarity terminal a, hole position protection door 5, door seat 51, door panel 52, door position 521, guide surface 5211, reset component 53. Detailed Implementation

[0023] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] like Figure 1-6As shown, this utility model discloses a German-style socket, including a face cover 2 and a bottom shell 3. The face cover 2 has a double-hole 21. A grounding terminal 4 and a polarity terminal a are installed in the bottom shell 3. The grounding terminal 4 includes a terminal body 41, which is integrally bent upward to form two pairs of latches 42. Each double-hole 21 has a locking interface 211 on both sides of its bottom. The two pairs of latches 42 are inserted into the corresponding double-hole 21 through the locking interface 211. Each double-hole 21 has two pin holes 212 at its bottom. There are two polarity terminals a, which are located on both sides of the grounding terminal 4. The pin holes 11 on the two polarity terminals a correspond one-to-one with the pin holes 212. The double-hole is connected by a central hole, which is used for the two middle latches to be inserted. The side walls of the double-hole have side holes for the outer latches to be inserted. After the plug is inserted, the latches can be squeezed outward. The central hole and side holes facilitate the insertion of the latches. Each connecting hole 21 is provided with a hole position protection door 5 below it. The hole position protection door 5 includes a door seat 51, a door panel 52, and a reset member 53. The door seat 51 is fastened to the cover 2. The door panel 52 is slidably disposed on the door seat 51. The door panel 52 has a door position 521 corresponding to cover two pin holes. Each door position 521 has a guide surface 5211 inclined downward. When the plug is inserted, the pins on it abut against the guide surface of the door panel, which can push the door panel 52 to slide and open the two pin holes 212. The reset member 53 is disposed between the door seat 51 and the door panel 52 and is used to drive the door panel 52 to reset and cover the two pin holes 212. The reset member 53 is a spring. In use, the plug is inserted downward into the connecting hole 21 of the cover 2. At the same time, the plug's pins abut against the guide surface 511 of the door position, which can push the door panel to slide against the reset member and open the two pin holes 212. The plug's pins are then inserted into the socket 11 of the plug core 12.

[0025] Specifically, the polarity terminal includes a terminal body 1 with insertion holes 11 at both ends. Each end of the terminal body 1 has a insert 12 formed by a pair of clips 121. The clips 121 are U-shaped, with one end integrally connected to the terminal body 1 and the other end being a free end 1211. The insertion hole 11 is formed by the cooperation of the free ends 1211 of the pair of clips 121. The clips 121 at both ends of the terminal body 1 are U-shaped with their bends facing away from each other. Each clip 121 has a short side 121a and a long side 121b extending relative to the short side. The free end 1211 is located on the long side 121b, and the short side 121a is integrally connected to the terminal body 1. The long sides 121b of the pair of clips are inclined close together, with an inclination angle of 0-30°. The free ends 1211 of a pair of clips 121 are bent in a V-shape to form a socket 11. An outwardly bent oblique guide plate 1212 is located on the upper side of the free ends 1211 of the pair of clips 121. The terminal body 1 is made of an elastic metal sheet. This product uses a pair of U-shaped bent clips to form the insert, resulting in good elasticity, high strength, and easy recovery after deformation. This increases the insertion and extraction force on the plug pins, extends product life, and prevents excessive current, excessive product temperature rise leading to sparks, or even fires due to excessive product temperature caused by poor contact.

[0026] It should be noted that all directional indicators (such as up, down, forward, backward, etc.) in the description of this utility model are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "installation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A polarity terminal of a German-style socket, comprising a terminal body (1) with sockets (11) at both ends, characterized in that: Both ends of the terminal body (1) have a core (12) consisting of a pair of clips (121). The clips (121) at both ends of the terminal body (1) are U-shaped bends facing away from each other. The U-shaped clips (121) have a short side (121a) and a long side (121b) extending relative to the short side. The end of the short side (121a) is integrally connected to the terminal body (1), and the end of the long side (121b) is a free end (1211). The free ends (1211) of the pair of clips (121) cooperate to form the socket (11).

2. The polarity terminal of the German-style socket according to claim 1, characterized in that: The long sides (121b) of a pair of card heads are tilted close together, and the tilt angle of the long sides (121b) is between 0-30°.

3. The polarity terminal of the German-style socket according to claim 1, characterized in that: The free ends (1211) of a pair of clips (121) are bent in a relative V-shape to form a socket (11), and there are relatively outwardly bent oblique guides (1212) on the upper side of the free ends (1211) of the pair of clips (121).

4. The polarity terminal of the German-style socket according to claim 1, characterized in that: The terminal body (1) is made of an elastic metal sheet.

5. A German-style socket, characterized in that: The device includes a faceplate (2) and a bottom shell (3). The faceplate (2) has a double-hole (21). The bottom shell (3) is equipped with a grounding terminal (4) and a polar terminal (a) as described in any one of claims 1-4. The grounding terminal (4) includes a terminal body (41). The terminal body (41) is bent upward to form two pairs of latches (42). Each single hole (21) has a card interface (211) on both sides of its bottom. The two pairs of latches (42) are inserted into the corresponding holes (21) through the card interface (211). Each single hole (21) has two pin holes (212) at its bottom. The polar terminal (a) has two terminals and is located on both sides of the grounding terminal (4). The pin holes (11) on the two polar terminals (a) correspond one-to-one with the pin holes (212).

6. The German-style socket according to claim 5, characterized in that: Each connecting hole (21) is provided with a hole position protection door (5). The hole position protection door (5) includes a door seat (51), a door panel (52), and a reset member (53). The door seat (51) is fastened to the face cover (2). The door panel (52) is slidably disposed on the door seat (51). The door panel (52) has a door position (521) corresponding to cover the two pin holes. Each door position (521) has a guide surface (5211) inclined downward. When the plug is inserted, the pins on it abut against the guide surface of the door panel, which can push the door panel (52) to slide to open the two pin holes (212). The reset member (53) is disposed between the door seat (51) and the door panel (52) and is used to drive the door panel (52) to reset to cover the two pin holes (212).

Citation Information

Patent Citations

  • Socket easy to plug

    CN212517614U

  • Bigeminy German-style socket with shell convenient to take out

    CN216413324U