A solderless banana jack
Patent Information
- Application Number
- CN202521721083.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-13
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-08-13
AI Technical Summary
[0003]然而,现有技术存在明显缺点:在长时间使用中,频繁插拔香蕉线会产生较大向下瞬间力量,这一力量会突破胶和竖纹的紧固力,导致金属圆筒从塑料件中脱离,造成连接不充分
本实用新型采用底座与插座的螺纹配合及底座底部圆环设计,能有效分散插拔时的向下力,保证插座在频繁插拔时内部金属不脱落,避免扯断电线,确保设备正常运转,同时保证良好绝缘性。
Smart Images

Figure CN224745970U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical connection components, specifically a solderless banana socket. Background Technology
[0002] Banana plugs are common accessories on device panels. Current banana plugs typically use a plastic casing with threads on the upper surface for screwing into holes in the control panel. Below the holes is a metal ring that screws onto the threads for a secure fit. A metal cylinder is located in the center of the plastic casing, connecting to the inserted metal connector. Vertical grooves at the bottom of the cylinder increase friction, and it is secured to the plastic casing with adhesive. At the bottom of the metal cylinder is a square metal plate with a round hole. The signal cable is soldered to this hole, and the banana plug is inserted into the plug to connect the two terminals.
[0003] However, existing technology has significant drawbacks: During prolonged use, frequent plugging and unplugging of the banana plug generates a substantial downward force. This force can overcome the binding force of the adhesive and vertical grooves, causing the metal cylinder to detach from the plastic component, resulting in an incomplete connection. Simultaneously, when the metal ring detaches, the wiring below the socket is pulled, causing the metal portion of the wire to break off from the solder joint, leading to a circuit connection failure. Furthermore, the exposed wires and metal contacts increase the risk of electrical leakage, and it is difficult to quickly identify the fault location when a malfunction occurs. Utility Model Content
[0004] The purpose of this utility model is to provide a solderless banana socket, which aims to ensure that the internal metal does not fall off when the socket is frequently plugged and unplugged, thus preventing the wires from being broken and ensuring the normal operation of the equipment. The base also ensures good insulation of the socket. At the same time, the insertion of the detector module can quickly identify the fault area and make non-contact judgment on voltage and circuit continuity.
[0005] This utility model is implemented as follows: A solderless banana socket includes: a socket and a detachable base that mates with it. The socket has a top shell on its outer side, and the top shell has threads and a metal retaining ring for fixing the panel. Inside the top shell is a hollow cylindrical socket and an integrally formed ring with vertical stripes. A fastener with a wire hole extends from below the ring. The base and the socket are connected by a threaded engagement. Inside the base is a pair of interlocking pressure plates for clamping the wire passing through the wire hole. The base also has a circuit board inside, and the circuit board has an electromagnetic induction sensor, a Bluetooth module, a controller module, a light-emitting diode, a Wi-Fi module, and a Hall effect sensor.
[0006] Preferably, one end of the light-emitting diode is connected to a wire hole, and the other end is provided with an external miniature connector. The electromagnetic induction sensor is located near the fastener and is used for non-contact detection of voltage signals. The Hall effect sensor is used to detect the current signal of the wire. The controller module is configured to process voltage and current signals and transmit fault data through a wireless communication module.
[0007] Preferably, a charging socket and a lithium battery are mounted on the circuit board.
[0008] Preferably, the metal retaining ring is threaded into the socket to form a structure that disperses the insertion and extraction forces.
[0009] Preferably, the base has a bottom cover to buffer the impact force of insertion and removal and to hold the fastener in place.
[0010] Compared with the prior art, the beneficial effects of this utility model are: This utility model adopts a threaded fit between the base and the socket and a circular ring design at the bottom of the base, which can effectively disperse the downward force during plugging and unplugging, ensure that the internal metal of the socket does not fall off during frequent plugging and unplugging, avoid tearing the wires, ensure the normal operation of the equipment, and at the same time ensure good insulation.
[0011] This utility model uses interlocking clamps to fix the wires, eliminating the hassle of soldering and preventing the metal wires from breaking due to twisting of the socket head.
[0012] This utility model features an integrated circuit continuity detection device that can quickly identify fault areas. Through miniature sensors, controllers, and wireless communication modules, it achieves contactless detection of voltage and circuit continuity, and wirelessly transmits fault information for timely troubleshooting and maintenance. Attached Figure Description
[0013] Figure 1 This is one of the schematic diagrams of the overall disassembled structure of this utility model; Figure 2 This is the second schematic diagram of the overall disassembled structure of this utility model; In the diagram: 1. Socket; 2. Base; 3. Electromagnetic induction sensor; 4. Bluetooth module; 5. Controller module; 6. Bottom cover; 7. Light-emitting diode; 8. WiFi module; 9. Charging socket; 10. Hall effect sensor; 11. Fastener; 12. Metal retaining ring; 13. Top shell; 14. Lithium battery. Detailed Implementation
[0014] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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 mechanical connection or an electrical connection; 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 according to the specific circumstances.
[0015] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details: Example 1
[0016] like Figure 1-2 As shown, this socket has a matching base and is cylindrical in shape. It consists of two parts: socket 1 and matching base 2. Socket 1 also includes a top shell, a metal fixing ring, and a metal plug. The base includes a bottom shell and a pressure plate.
[0017] Socket 1 uses a fixed plastic shell, which is cylindrical in shape. The top features a plastic ring as shown in the panel socket, inside which is a hollow plastic cylinder. The plastic shell below the ring has threads; after passing through the panel, it is secured to the panel with a metal retaining ring 12, which also has internal threads. This ring is screwed in from the bottom of the socket upwards to firmly fix the socket to the panel. Inside are metal connecting components. The upper end is a hollow metal cylindrical plug that fits inside the hollow plastic cylinder. Below the metal cylindrical plug is a solid, vertically grooved ring, which is where the metal and plastic are fixed together. All of these components, including the hollow metal cylinder and ring, are encapsulated within the plastic shell, ensuring insulation.
[0018] Below this is the integrated interlocking fastener 11, with a round hole for connecting wires. The wires can be wound around the round hole. To avoid the hassle of soldering, two interlocking rectangular pressure plates are used. One side of the pressure plate is rectangular, and the other side is arc-shaped. This secures the metal end of the wire and the insulation of the wire together, preventing the wire from breaking due to twisting of the socket head. This part of the rectangular metal plate and the pressure plates are properly encapsulated in the plastic base of the socket, ensuring stability and good insulation.
[0019] Below the socket is a movable base 2, cylindrical in shape. Two movable plastic fasteners inside securely hold the wire through the circular hole, eliminating the need for soldering. The base also has internal threads that tightly engage with the socket's external threads, distributing the downward force of the plug across the entire socket and preventing the hollow metal cylinder from being pushed out during frequent plugging and unplugging. Inside the base, at the bottom, is a circular ring with a hole that holds the upper metal rectangular head, reducing the downward force when the plug is inserted. Simultaneously, the plastic shell provides insulation protection when the wire enters.
[0020] In addition to the mechanical parts mentioned above, there are also electrical parts: In the circuit section, LED 7 is used to measure the signal of the completed wiring, acting as a circuit continuity detector: located on the lower base, it uses an indicator light to show whether the circuit is open or closed. One end of the indicator light is connected to the wire hole, and the other end is equipped with a miniature socket, which can be connected with a long wire to the negative terminal of the panel power supply. If the circuit is intact, the light will illuminate. Then, the socket at the other end of the wire is tested, and the fault area can be quickly determined from the indicator light of the socket.
[0021] The PLC signal jack is connected to another socket via a cable, leading to a sensor or solenoid valve. If the indicator lights on both sockets are lit during measurement, it indicates that the circuit is working properly; otherwise, it can be determined which part of the circuit is malfunctioning.
[0022] A circuit board is installed inside the base 2, and a miniature electromagnetic induction sensor 3 is added. This sensor is positioned near the metal rectangular piece of the fastener 11 and can detect the voltage on the metal rectangular piece of the fastener non-contactly through electromagnetic induction. The sensor converts the detected voltage signal into an electrical signal and transmits it to the controller module 5 located inside the base.
[0023] The base 2 houses a controller module 5, a wireless communication module, and a power supply module. The controller module 5 receives and processes voltage signals from the miniature electromagnetic induction sensor 3 and continuity signals from the diode indicator light. The wireless communication module uses Bluetooth or Wi-Fi technology to wirelessly transmit detection data and fault information to external terminal devices, such as mobile phones, tablets, or industrial control hosts. The power supply module powers all electronic components and can use a rechargeable lithium battery 14, with a charging interface for convenient charging. Additionally, a Hall effect sensor 10 is installed in the base 2. This sensor detects the current flowing through the conductor, and combined with the controller module 5, it enables accurate determination of circuit continuity. When current flows through the conductor, the Hall effect sensor 10 generates an induction signal, which the controller module 5 uses to determine whether the circuit is continuous.
[0024] In practical use, the base can be separated from the inserted circuit board and connected to act as a detector when needed.
[0025] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A solderless banana jack, characterized by, Includes a socket (1) and a detachable base (2) that docks with it. The socket (1) has a top shell (13) on its outside. The top shell (13) has threads for fixing the panel and a metal fixing ring (12). The socket (1) is a hollow cylinder and an integrally formed ring with vertical stripes. A fastener (11) with wire holes extends from the bottom of the ring. The base (2) is connected to the socket (1) by threaded engagement. It has a pair of interlocking pressure plates inside for clamping the wires passing through the wire holes. The base (2) also has a circuit board inside, and the circuit board has an electromagnetic induction sensor (3), a Bluetooth module (4), a controller module (5), a light-emitting diode (7), a Wi-Fi module (8), and a Hall effect sensor (10).
2. A solderless banana jack as defined in claim 1, wherein, The light-emitting diode (7) has one end connected to a wire hole and the other end is provided with an external micro-plug. The electromagnetic induction sensor (3) is located near the fastener (11) and is used for non-contact detection of voltage signals. The Hall effect sensor (10) is used to detect the current signal of the wire. The controller module (5) is configured to process voltage and current signals and transmit fault data through the wireless communication module.
3. A solderless banana jack as defined in claim 2, wherein, The circuit board is equipped with a charging socket (9) and a lithium battery (14).
4. A solderless banana jack as defined in claim 1, wherein, The metal retaining ring (12) is threaded into the socket (1) to form a structure that disperses the insertion and extraction forces.
5. A solderless banana jack as defined in claim 1, wherein, The bottom of the base (2) is provided with a bottom cover (6) to buffer the impact force of insertion and removal and hold the fastener (11).
