Special line-in and line-out terminal board for multi-pole electromagnetic leakage circuit breaker

Abstract

The utility model relates to the technical fields of multi -pole electromagnetic formula leakage circuit breaker, specifically related to a kind of incoming line terminal board of multi -pole electromagnetic formula leakage circuit breaker special use, technical solution point is that incoming line terminal board includes: the face for U type busbar wiring, the face for needle type busbar or wire wiring, the face for protection detection, the face for the welding of connecting piece directly below, the face for the welding of high-temperature insulated wire passing through electromagnetic formula leakage special magnetic ring directly above, incoming line terminal board front and back have symmetry and universality.The utility model in use, incoming line terminal board front and back have symmetry and universality, the part has the characteristics of processing standardization, strong universality, wiring frame easy to go in and out, rework is convenient, high efficiency, low cost.

Description

Technical Field

[0001] This utility model relates to the technical field of multi-pole electromagnetic residual current circuit breakers, specifically to a dedicated inlet and outlet wiring board for multi-pole electromagnetic residual current circuit breakers. Background Technology

[0002] Currently, well-known international brands such as Schneider Electric and Eaton, as well as domestic brands like Chint, manufacture multi-pole electromagnetic residual current circuit breakers (RCCBs). These circuit breakers feature busbar wiring, but their incoming and outgoing terminal blocks are completely separate parts, resulting in low standardization. When the terminal block strips, it's difficult to remove the block itself, requiring spot welding before further processing. This leads to complex, non-standardized products, inconvenient spot welding, and difficult rework, resulting in low production efficiency and high costs. Therefore, dedicated incoming and outgoing terminal blocks are needed to address these issues. Utility Model Content

[0003] To address the technical problems and shortcomings of existing technologies, this invention provides a dedicated inlet and outlet terminal block for multi-pole electromagnetic residual current circuit breakers. The terminal block is symmetrical and versatile, with the front side being the inlet terminal block and the back side being the outlet terminal block. It features standardized processing, strong versatility, easy access to the wiring frame, convenient rework, high efficiency, and low cost.

[0004] To achieve the above and other related objectives, the present invention adopts the following technical solution:

[0005] A terminal block for multi-pole electromagnetic residual current circuit breakers is provided. The terminal block includes: a side for wiring U-shaped busbars, a side for wiring pin-type busbars or wires, a side for protection and detection, a bottom side for welding connecting pieces, and a top side for welding high-temperature insulated wires passing through the electromagnetic residual current circuit breaker's magnetic ring. The terminal block has symmetry and versatility on both sides.

[0006] Preferably, the surface for wiring the U-shaped busbar is provided with through holes and stripes, and the surface for wiring the pin-type busbar or wire is also provided with stripes.

[0007] Preferably, the surface for wiring the U-shaped busbar is parallel to the surface for wiring the pin-type busbar or wire, while the surface for protection and detection, the lower surface for welding the connecting piece, and the upper surface for welding the high-temperature insulated wire passing through the electromagnetic leakage current special magnetic ring are all perpendicular to the surface for wiring the U-shaped busbar.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] The multi-pole electromagnetic residual current circuit breaker with busbar wiring has a dedicated incoming and outgoing line terminal block. When in use, the front and back of the incoming and outgoing line terminal block are symmetrical and universal. This part is characterized by standardized processing, strong versatility, easy access of the wiring frame, convenient rework, high efficiency, and low cost.

[0010] Other additional advantages and benefits of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0012] Figure 1 This is a schematic diagram showing the location of the circuit breaker's incoming and outgoing terminal blocks in this embodiment;

[0013] Figure 2 This is a schematic diagram of the circuit breaker's incoming and outgoing terminal block in this embodiment;

[0014] Figure 3 This is a three-dimensional schematic diagram of the inlet and outlet wiring board 1a and 1c in this embodiment;

[0015] Figure 4 This is a three-dimensional schematic diagram of parts 1b, 1d, and 1e of the incoming and outgoing line terminal blocks in this embodiment.

[0016] Explanation of reference numerals for major components:

[0017] 1. Terminal block for incoming and outgoing lines;

[0018] 1a. Surface 1a for wiring the U-shaped busbar;

[0019] 1b, face 1b for use with pin-type busbars or wire connections;

[0020] 1c, Surface 1c for protection and testing;

[0021] 1d, the lower part of the connector for welding;

[0022] 1e. The top surface of the high-temperature insulated wire for welding through the electromagnetic leakage current special magnetic ring;

[0023] 2. Connecting piece;

[0024] 3. High-temperature insulated wires;

[0025] 4. Bottom of the outer casing;

[0026] 5. Outer shell cover. Detailed Implementation

[0027] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. The following specific examples illustrate the embodiments of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.

[0028] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The illustrations only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be changed at will, and the layout of the components may also be more complex.

[0029] It should be noted that in the description of this application, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention. Furthermore, it should be noted that in the description of this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in the invention based on the specific circumstances.

[0030] Example:

[0031] This invention relates to a multi-pole electromagnetic residual current circuit breaker with a dedicated incoming and outgoing terminal block for busbar wiring. Combined with... Figure 1 , Figure 2 , Figure 3 and Figure 4 Understood. The terminal block 1 of the present invention is composed of: a surface 1a for wiring U-shaped busbars, a surface 1b for wiring pin-type busbars or wires, a surface 1c for overload protection detection, a lower surface 1d for welding connecting pieces 2, and a higher surface 1e for welding high-temperature insulated wires 3 that pass through electromagnetic leakage current special magnetic rings.

[0032] Scenario 1: During processing, the incoming and outgoing line terminal block 1d needs to be welded to the connecting piece 2, and the incoming and outgoing line terminal block 1e needs to be welded to the high-temperature insulated wire 3 that passes through the electromagnetic leakage current special magnetic ring; then the incoming and outgoing line terminal block 1 of the present invention is installed on the designated housing 4 of the multi-pole electromagnetic leakage current circuit breaker, and the incoming line terminal block, connecting piece, bimetallic strip, arc ignition piece, braided wire, moving contact, stationary contact, stationary terminal block, short circuit protection coil, high-temperature insulated wire passing through the electromagnetic leakage current special magnetic ring, and outgoing line terminal block are connected by power line to form a circuit, and then the housing 5 is covered to press down the incoming and outgoing line terminal blocks and other parts.

[0033] Scenario 2: When the circuit breaker is installed on the DIN rail and the power input / output lines are connected, the power input / output lines or pin-type busbars need to be inserted into the input / output terminal block 1b. Tighten the wiring screws to move the terminal frame upwards, and then tighten the screws to ensure a secure connection. Alternatively, insert the U-shaped busbar into the input / output terminal block 1a, tighten the wiring screws to move the terminal frame upwards, and then tighten the screws to ensure a secure connection. Then, activate the switch. At this time, the multi-pole electromagnetic residual current circuit breaker provides protection against overload, short circuit, and leakage current.

[0034] Scenario 3: When simulating leakage, overload, and short-circuit conditions for equivalent testing of a multi-pole electromagnetic residual current circuit breaker, the above-mentioned different tooling fixtures are used to clamp and energize the incoming and outgoing line terminal blocks 1c for testing. This ensures that the multi-pole electromagnetic residual current circuit breaker provides protection against line overload, short circuit, and leakage during actual use.

[0035] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A terminal block for incoming and outgoing lines specifically designed for multi-pole electromagnetic residual current circuit breakers, characterized in that, The incoming and outgoing terminal block includes: a side (1a) for wiring U-shaped busbars, a side (1b) for wiring pin-type busbars or wires, a side (1c) for protection and detection, a bottom side (1d) for welding connecting pieces (2), and a top side (1e) for welding high-temperature insulated wires (3) that pass through electromagnetic leakage current special magnetic rings. The front and back sides of the incoming and outgoing terminal block are symmetrical and versatile.

2. The terminal block for the input and output lines of the multi-pole electromagnetic residual current circuit breaker according to claim 1, characterized in that, The surface (1a) for wiring the U-shaped busbar is provided with through holes and stripes, and the surface (1b) for wiring the pin-type busbar or wire is also provided with stripes.

3. The terminal block for the input and output lines of the multi-pole electromagnetic residual current circuit breaker according to claim 1, characterized in that, The face (1a) for wiring the U-shaped busbar and the face (1b) for wiring the pin-type busbar or wire are parallel. The face (1c) for protection and detection, the lower face (1d) for welding the connecting piece (2), and the upper face (1e) for welding the high-temperature insulated wire (3) that passes through the electromagnetic leakage current special magnetic ring are all perpendicular to the face (1a) for wiring the U-shaped busbar.

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