Miniature circuit breaker with high safety

Abstract

The utility model discloses a miniature circuit breaker with high safety, which comprises a shell, wiring holes are arranged on two sides of the shell, a surrounding projection is arranged at an inlet of each wiring hole, and inclined planes are arranged on two sides and below an inlet of each projection. Rainwater is prevented from entering the wiring hole along the shell through the protruding part, the rainwater is enabled to rapidly drop under the influence of gravity through the inclined surface and is prevented from being accumulated at an inlet of the wiring hole, and the inclined surface is also beneficial to guiding a wire into the wiring hole, so that the product has the advantages of high safety and water invasion prevention.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a micro circuit breaker with high safety. Background Art

[0002] The micro circuit breaker is an important control and protection device in the low-voltage power distribution system. It can quickly break the fault current when overload or short-circuit faults occur in the power distribution system, protecting the power distribution system and electrical equipment.

[0003] The wiring terminals of the existing micro circuit breaker housing are smooth and straight. When water droplets splash on the housing surface, they gather in the wiring terminals under the influence of gravity and contact the conductive plate, which not only easily causes a short circuit but also easily corrodes the conductive plate, increasing the contact resistance value between the conductive plate and the wire. Therefore, the applicant has made a beneficial design and found a solution to the above problems. The technical solution to be introduced below was generated under this background. Summary of the Invention

[0004] The purpose of the utility model is to overcome the deficiencies of the existing circuit breaker design and provide a product with high safety and water intrusion prevention.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A micro circuit breaker with high safety includes a housing. There are wiring holes on both sides of the housing, and a surrounding convex portion is provided at the entrance of the wiring holes. The two sides and the lower part at the entrance of the convex portion are provided with inclined surfaces.

[0007] Preferably, a wiring terminal is provided in the wiring hole.

[0008] Advantageous Effects

[0009] Compared with the prior art, the advantageous effects of the utility model are as follows:

[0010] In the utility model, the convex portion prevents rainwater from flowing along the housing into the wiring holes, and the inclined surfaces enable the rainwater to quickly drip under the influence of gravity, preventing it from accumulating at the entrance of the wiring holes. Moreover, the inclined surfaces also help to guide the wires into the wiring holes. By the above design, the problems raised in the background are overcome, ensuring the stable connection between the wiring terminals and the wires, and making the product have the advantages of high safety and water intrusion prevention. Brief Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of a micro circuit breaker with high safety according to the utility model;

[0012] Figure 2 For the utility model Figure 1Partial enlarged view A of a miniature circuit breaker with high safety

[0013] The corresponding relationship between the labels of each attached drawing in the figure and the component names is as follows:

[0014] Reference numerals: 1, housing; 2, wiring hole; 3, protrusion; 4, inclined surface; 5, terminal Specific implementation mode

[0015] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention

[0016] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention

[0017] In the embodiments of the present invention, "and / or" is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after

[0018] Reference example Figure 1 , Figure 2 , a miniature circuit breaker with high safety, including a housing 1, wiring holes 2 are provided on both sides of the housing 1, a circumferential protrusion 3 is provided at the entrance of the wiring hole 2, inclined surfaces 4 are provided on both sides and below the entrance of the protrusion 3. The protrusion 3 prevents rainwater from flowing along the housing 1 into the wiring hole 2, and the inclined surfaces 4 enable the rainwater to quickly drip under the influence of gravity, preventing accumulation at the entrance of the wiring hole 2. In addition, the inclined surfaces 4 also help to guide the wire into the wiring hole 2. Through the above design, the problems raised in the background are overcome, ensuring stable connection between the terminal 5 and the wire

[0019] It is worth mentioning that a terminal 5 is provided in the wiring hole 2. The terminal 5 is electrically connected to the wire

[0020] Through the above design scheme, the product can achieve the advantages of high safety and prevention of water intrusion

[0021] The above content is a further detailed description of the present utility model in combination with specific embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the protection scope determined by the claims submitted for the present utility model.

Claims

1. A miniature circuit breaker with high safety, comprising a housing (1), and wiring holes (2) are provided on both sides of the housing (1), characterized in that: At the entrance of the wiring hole (2), there is a surrounding convex part (3), and inclined surfaces (4) are provided on both sides and below the entrance of the convex part (3).

2. The miniature circuit breaker with high safety according to claim 1, characterized in that: A wiring terminal (5) is provided in the wiring hole (2).

Images