Multifunctional panel accessory and miniature circuit breaker

Abstract

The utility model relates to a multifunctional panel accessory and a miniature circuit breaker. The multifunctional panel accessory comprises a frame matched with the size of an operation part of the miniature circuit breaker; the buckles are formed by extending downwards along the left side and the right side of the frame and are used for being clamped and matched with the miniature circuit breaker; the lightning protection part is formed by extending along the front end and the rear end of the frame, the lightning protection part covers the front end and the rear end of the miniature circuit breaker, and a plurality of operation holes matched with the wiring screws are formed in the lightning protection part; and the plurality of partition plates extend downwards along the front end of the lightning protection part and are arranged among the phases of the miniature circuit breaker. The multifunctional panel accessory provided by the utility model can be directly attached to a conventional miniature circuit breaker without performance, and the height of a wiring screw and a shell of the miniature circuit breaker is increased through the lightning protection part, so that the electric shock protection performance is obtained; and meanwhile, the creepage distance between phases is increased through the design of the partition plates, so that the inter-phase arc short circuit prevention capability is obtained, the applicability is wide, the miniature circuit breaker does not need to be changed, and the production cost is relatively low.

Description

Technical Field

[0001] The utility model specifically relates to a multifunctional panel accessory and a miniature circuit breaker. Background Art

[0002] The miniature circuit breaker, also known as the micro circuit breaker, is applicable to the overload and short - circuit protection of the circuit with an alternating current of 50 / 60 Hz, a rated voltage of 230 / 400 V, and a rated current up to 63 A. It can also be used for the infrequent operation and conversion of the circuit under normal circumstances. The miniature circuit breaker is mainly used in various places such as industry, commerce, high - rise buildings, and civilian residences.

[0003] In order to pursue the requirements of miniaturization and low cost of the miniature circuit breaker, some unnecessary performances are generally abandoned, such as the anti - electric shock performance and the anti - arc short - circuit ability between phases.

[0004] In order to ensure the addition of corresponding performances, for example, Chinese Patent CN 212570910 U discloses a miniature circuit breaker provided with a partition. It increases the anti - arc short - circuit ability between phases by setting arc - blocking plates on both the front and rear sides of the circuit breaker. However, it is achieved directly by changing the housing. For some already - used miniature circuit breakers, there is a lack of a necessary means to increase their anti - electric shock performance or anti - arc short - circuit ability between phases. Summary of the Utility Model

[0005] Aiming at the deficiencies existing in the prior art, the purpose of the utility model is to provide a multifunctional panel accessory and a miniature circuit breaker.

[0006] To achieve the above - mentioned purpose, the utility model provides the following technical solutions:

[0007] A multifunctional panel accessory, comprising:

[0008] A frame matching the size of the operating part of the miniature circuit breaker;

[0009] Clasps formed by extending downward along the left and right sides of the frame for clamping and cooperating with the miniature circuit breaker;

[0010] A lightning protection part formed by extending along the front and rear ends of the frame, and the lightning protection part covers the front and rear ends of the miniature circuit breaker, and a number of operation holes matching the wiring screws are provided on the lightning protection part;

[0011] A number of partitions extending downward along the front end of the lightning protection part and arranged between the phases of the miniature circuit breaker.

[0012] The partition extends along the height direction of the miniature circuit breaker, and the lower end of the partition extends downward beyond the lower edge of the opening of the wiring port.

[0013] One side of the lower end of the partition plate facing the direction of the miniature circuit breaker is provided with an inclined surface.

[0014] The lightning protection part is arranged in a convex shape, and the partition plate is arranged on both sides of the protruding position of the lightning protection part.

[0015] The outer side of the buckle is provided with an undercut.

[0016] The height of the frame is adapted to the height of the operating part of the miniature circuit breaker.

[0017] A miniature circuit breaker includes a circuit breaker body, and the above-mentioned multifunctional panel accessory is sleeved outside the circuit breaker body.

[0018] The beneficial effects of the present utility model: The multifunctional panel accessory proposed in this application can be directly attached to the miniature circuit breaker that previously omitted performance. By increasing the height between the wiring screw and the shell of the miniature circuit breaker through the lightning protection part, the anti-electric shock performance can be obtained; at the same time, the creepage distance between phases is increased through the partition plate design, so as to obtain the anti-arc short-circuit ability between phases. It has a wide range of applicability, does not require modification to the miniature circuit breaker itself, and has a low production cost. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the present utility model.

[0020] Figure 2 It is a schematic structural diagram when the present utility model is matched with the miniature circuit breaker.

[0021] Figure 3 It is a separation schematic diagram of the two. Detailed Embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0024] As shown in the figure, the present utility model discloses a multifunctional panel accessory, which is mainly used to be attached to an existing miniature circuit breaker to enable it to have corresponding performance.

[0025] It includes:

[0026] A frame 1 that matches the size of the operating part of the miniature circuit breaker. The center of the frame is empty and just matches the protruding operating part of the miniature circuit breaker. Thus, when the frame is sleeved at the operating part 51, its circumference is surrounded by the frame and its upper end is exposed, facilitating the operation of the handle of the miniature circuit breaker;

[0027] Clasps 3, formed by extending downward along the left and right sides of the frame, for clamping and cooperating with the miniature circuit breaker. Their lower ends extend to the track groove 53 of the miniature circuit breaker, and the assembly of the multi-functional panel accessory and the miniature circuit breaker is achieved by clamping with this place. At the same time, the reverse buckles 31 arranged on the outer side of the clasps can enable the miniature circuit breaker to be assembled on the cabinet panel;

[0028] A lightning protection part 2, formed by extending along the front and rear ends of the frame, and the lightning protection part covers the front and rear ends of the miniature circuit breaker. A number of operation holes 21 that match the wiring screws are provided on the lightning protection part. The lightning protection part increases the height between the wiring screw and the shell, thus enabling it to have anti-electric shock performance. At the same time, the existence of the operation holes can also operate on the wiring terminals after installing the multi-functional panel accessory without affecting its use;

[0029] A number of partitions, extending downward along the front end of the lightning protection part and arranged between each phase of the miniature circuit breaker.

[0030] The partitions extend along the height direction of the miniature circuit breaker, and the lower ends of the partitions extend downward beyond the lower edge of the opening of the wiring port 52, thus separating each phase of the miniature circuit breaker. The creepage distance between the wiring ports of adjacent phases is achieved through the partitions, thereby obtaining the anti-arc short-circuit ability between phases.

[0031] One side of the lower end of the partition facing the direction of the miniature circuit breaker is provided with an inclined surface 41, facilitating its installation with the miniature circuit breaker.

[0032] The lightning protection part is arranged in a convex shape, and the partitions are arranged on both sides of the protruding position of the lightning protection part. While saving materials, it also limits the distance between the partitions, ensuring that the partitions are always located between phases.

[0033] The height of the frame is adapted to the height of the operating part 51 of the miniature circuit breaker 5 and can be slightly lower than the height of the operating part, so that it does not affect the operation of the handle.

[0034] A miniature circuit breaker includes a circuit breaker body. The multi-functional panel accessory is sleeved outside the circuit breaker body. The multi-functional panel accessory is directly clamped on the miniature circuit breaker by a clamping method, thereby enabling it to have corresponding performance. Its installation method is simple and does not affect the use of the miniature circuit breaker itself, and it has high universality.

[0035] The embodiments should not be regarded as limitations to the present utility model, but any improvements made based on the spirit of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A multifunctional panel accessory, characterized in that: It includes: A frame that matches the size of the operating part of the miniature circuit breaker; Clasps that extend downward along the left and right sides of the frame and are used for snap-fit connection with the miniature circuit breaker; A lightning protection part that extends along the front and rear ends of the frame, and the lightning protection part covers the front and rear ends of the miniature circuit breaker, and a number of operation holes that match the wiring screws are provided on the lightning protection part; A number of partitions that extend downward along the front end of the lightning protection part and are arranged between the phases of the miniature circuit breaker.

2. The multifunctional panel accessory according to claim 1, wherein: The partition extends along the height direction of the miniature circuit breaker, and the lower end of the partition extends downward beyond the lower edge of the opening of the wiring port.

3. A multifunctional panel accessory according to claim 1 or 2, characterized in that: One side of the lower end of the partition facing the miniature circuit breaker is provided with an inclined surface.

4. The multifunctional panel accessory according to claim 3, wherein: The lightning protection part is arranged in a convex shape, and the partitions are arranged on both sides of the protruding position of the lightning protection part.

5. A multifunctional panel accessory according to claim 1, characterized in that: The outside of the clasp is provided with an undercut.

6. The multifunctional panel accessory according to claim 1, characterized in that: The height of the frame is adapted to the height of the operating part of the miniature circuit breaker.

7. A miniature circuit breaker, characterized in that: It includes a circuit breaker body, and the outside of the circuit breaker body is sleeved with the multifunctional panel accessory described in any one of claims 1 to 6 above.

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