Outlet terminal assembly and circuit breaker

Abstract

The utility model relates to a terminal assembly and circuit breaker, through four wiring frame inner bottom wall and corresponding wiring screw's micro -arc surface jointing joint plate, this multidirectional, multi -point's joint structure can provide stable reliable fixation for joint plate, effectively prevent joint plate and appear loose, shift etc. in the use process, ensure the structural integrity of whole terminal assembly, improved the mechanical strength and anti -vibration ability of component, make it can adapt to the mechanical stress requirement under different working environment, on four wiring screws jointly cover and set terminal cover, can effectively prevent the dust, moisture, sundries etc. of outside from entering the wiring area, avoid the electrical short circuit, electric leakage etc. hidden danger caused by foreign matter invasion.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to an outgoing terminal assembly and a circuit breaker. Background Technology

[0002] Circuit breakers are key protective control components that ensure the safe operation of circuits, and the outgoing terminal assembly, as the connection hub between the circuit breaker and the external circuit, has a significant impact on the performance of the circuit breaker. Currently, common outgoing terminal assemblies have many problems. The connecting plate is often fixed by a single point or a few points, which is prone to loosening and displacement under complex working conditions such as vibration and impact, causing safety hazards such as unstable wiring, local overheating, or even equipment damage. In terms of protection performance, there is a lack of effective structure, and dust, moisture, and debris can easily enter the wiring area, affecting conductivity, causing short circuits or interference with connections. Moreover, some terminal covers are poorly designed, complicated to install and disassemble, and lack observation and inspection ports. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a terminal block assembly and circuit breaker with a compact structure, strong stability, good protection performance and easy installation and maintenance.

[0004] In a first aspect, this utility model provides a terminal assembly, including four wiring frames. Each wiring frame has a threaded hole installed at the top and a terminal outlet hole installed at the bottom. A wiring screw is inserted into the threaded hole of each wiring frame. The bottom of the wiring screw has a micro-arc surface. A connecting plate is connected between the inner bottom wall of the four wiring frames and the micro-arc surface of the corresponding wiring screw. The connecting plate has a fixing hole. A terminal cover is provided on the four wiring screws.

[0005] The beneficial effects of the above structure are as follows: the connecting plate is jointly snapped together by the micro-arc surfaces of the bottom walls of the four wiring frames and the corresponding wiring screws. This multi-directional, multi-point snapping structure can provide stable and reliable fixation for the connecting plate, effectively preventing the connecting plate from loosening or shifting during use, ensuring the structural integrity of the entire outgoing terminal assembly, improving the mechanical strength and vibration resistance of the assembly, and enabling it to adapt to the mechanical stress requirements of different working environments. The terminal cover on the four wiring screws can effectively prevent external dust, moisture, debris, etc. from entering the wiring area, avoiding electrical short circuits, leakage, and other safety hazards caused by foreign object intrusion.

[0006] This utility model is further configured with a terminal cover that conforms to the top of the four wiring frames and the wiring screws. The terminal cover is positioned over the wiring screws. One end of the terminal cover has a snap-fit ​​structure, and the other end forms an opening groove extending towards the wiring frame. The top of the terminal cover also has an observation and inspection port corresponding to the position of the wiring screws. This design, with the terminal cover conforming to the top of the four wiring frames and the wiring screws, allows for a close fit to the contours of the wiring frames and screws, achieving comprehensive and seamless coverage. The snap-fit ​​structure at one end of the terminal cover makes installation and removal extremely easy. The opening groove at the other end provides precise positioning during installation. The observation and inspection port at the top of the terminal cover, corresponding to the position of the wiring screws, provides operators with a convenient access for inspection and maintenance.

[0007] This utility model is further configured with a rectangular arrangement of the wiring frames. This rectangular arrangement of the wiring frames makes the entire terminal block assembly more compact and organized.

[0008] Secondly, this utility model provides a circuit breaker including the above-mentioned outgoing terminal assembly, wherein the outgoing terminal assembly is installed at the outgoing end of the circuit breaker. Attached Figure Description

[0009] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0010] Figure 2 This is a three-dimensional schematic diagram of the assembly of the wiring frame and the connecting plate according to an embodiment of the present utility model. Detailed Implementation

[0011] like Figures 1-2 As shown, an embodiment of this utility model provides a terminal block assembly. The terminal block assembly 1 includes four rectangularly arranged wiring frames 2. Each wiring frame 2 has a threaded hole 21 at the top and a wiring hole 22 at the bottom. A wiring screw 3 is inserted into the threaded hole 21 of each wiring frame 2. The bottom of the wiring screw 3 forms a micro-arc surface 31. The inner bottom wall of the four wiring frames 2 and the micro-arc surface 31 of the corresponding wiring screw 3 are engaged with the connecting plate 4. The connecting plate 4 has a fixing hole 41 for fixing and connecting with the circuit breaker.

[0012] To protect the wiring area, a terminal cover 5 is provided on all four wiring screws 3. The terminal cover 5 is a cover-shaped structure that fits the top of the four wiring frames 2 and the wiring screws 3, and is tightly covered on the outside of the wiring screws 3. One end of the terminal cover 5 is provided with a snap-fit ​​structure 51 for quick installation and removal, and the other end forms an opening groove 52 extending into the wiring frame 2, which plays a precise positioning role during installation. In addition, the top of the terminal cover 5 is also provided with an observation and inspection port 53 corresponding to the position of the wiring screws 3, which makes it convenient for operators to inspect and maintain the internal wiring.

[0013] The outgoing terminal assembly 1 constructed as described above can be installed at the outgoing terminal of the circuit breaker to provide a stable and reliable connection between the circuit breaker and the external circuit.

[0014] Of course, in addition to the above embodiments, this utility model may have other various embodiments. Without departing from the essential technical solution of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, and these changes or modifications are equivalent to the technical solution in this patent. Therefore, these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A terminal block assembly, characterized in that: It includes four wiring frames, each with a threaded hole at the top and a wire outlet hole at the bottom. A wiring screw is inserted into the threaded hole of each wiring frame, and the bottom of the wiring screw has a slightly arc-shaped surface. A connecting plate is connected between the inner bottom wall of the four wiring frames and the slightly arc-shaped surface of the corresponding wiring screw. The connecting plate has a fixing hole, and a terminal cover is provided on the four wiring screws.

2. The outgoing terminal assembly according to claim 1, characterized in that: The terminal cover is a cover-shaped structure that fits the top of the four wiring frames and the wiring screws. The terminal cover is placed on the outside of the wiring screws. One end of the terminal cover is provided with a snap-fit ​​structure, and the other end forms an opening groove extending into the wiring frame. The top of the terminal cover is also provided with an observation and detection port corresponding to the position of the wiring screws.

3. The outgoing terminal assembly according to claim 1 or 2, characterized in that: The wiring frames are arranged in a rectangular pattern.

4. A circuit breaker, characterized in that: Includes the outgoing terminal assembly according to any one of claims 1-3, said outgoing terminal assembly being installed at the outgoing terminal position of the circuit breaker.

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