CN206040559U - Circuit breaker - Google Patents

Abstract

The utility model provides a circuit breaker, which includes a housing made of insulating and flame-retardant materials, a plurality of wiring holes are respectively arranged at the upper and lower ends of the housing, and wiring terminals are arranged in the wiring holes, and the two ends are connected. There is a circuit breaker main body placed in the housing between the terminals, and a plurality of indicator lights are provided on the housing corresponding to the wiring terminals, and a grounding terminal is also provided on the housing, and one end of the indicator lights is passed through a current-limiting resistor. It is connected to a connection terminal, and the other end of the indicator light is connected to the ground terminal. Each terminal of the circuit breaker described in the utility model is connected with an indicator light, which can indicate the charging status of each terminal. When a circuit break occurs, it is convenient to find out the location of the circuit breaker, and judge whether the circuit breaker is faulty or the terminal is disconnected, which improves the use of the circuit breaker. Effect.

Description

breaker

technical field

The utility model relates to the technical field of electrical switches, in particular to a circuit breaker.

Background technique

The circuit breaker is suitable for the overload and short circuit protection of the line, and can also be used for the infrequent operation conversion of the line under normal conditions. Circuit breakers are widely used in various places such as industry, commerce, high-rise buildings and residential buildings. Due to the aging of existing circuit breakers due to long-term use, or the wiring is affected by external forces and other factors, false connections often occur. When overhauling, it is necessary to use the electric test pen to find out the location of the open circuit and reconnect the circuit.

Utility model content

In view of this, the utility model aims to provide a circuit breaker to improve the use effect of the circuit breaker.

In order to achieve the above object, the technical solution of the utility model is achieved in that:

A circuit breaker, comprising a housing made of insulating and flame-retardant materials, a plurality of wiring holes are respectively arranged at the upper and lower ends of the housing, wiring terminals are arranged in the wiring holes, and a set is arranged between the wiring terminals at both ends. The main body of the circuit breaker in the casing, on the casing is provided with a plurality of indicator lights corresponding to the wiring terminals, and a grounding terminal is also provided on the casing, one end of the indicator lights is connected to a wiring terminal through a current limiting resistor , the other end of the indicator light is connected to the ground terminal.

Further, the indicator light is a neon tube.

Further, the upper and lower ends of the housing are also provided with wire fixing plates, and the wire fixing plates are hinged with wire clamps, and the wire clamps include two arc-shaped clamping parts, one end of the clamping parts is hinged to the wire On the fixing plate, a mounting plate is provided at the other end of the clamping portion, and a connecting hole is provided on the mounting plate.

Further, a mounting groove is provided inside the wiring hole, a sealing cover is slidably connected to the mounting groove, and the sealing cover is connected to the housing via an elastic member.

Further, a protrusion is provided on the outer end surface of the sealing cover.

Further, the circuit breaker also includes a water retaining plate with a U-shaped cross section, chute grooves are symmetrically arranged on both sides of the main body of the circuit breaker, and sliders are arranged on both inner sides of the water retaining plate. Inserted in the chute and covered on the shell.

Compared with the prior art, the utility model has the following advantages:

(1) Each connecting terminal of the circuit breaker described in the utility model is connected with an indicator light via a current-limiting resistor, which can indicate the charging status of each terminal. Circuit breaker, simple and practical structure.

(2) The indicator light adopts a neon tube, and a current-limiting resistor is connected in series with the neon tube, which is resistant to high voltage, has a simple circuit, and is not easy to be damaged.

(3) There are wire fixing plates at the upper and lower ends of the circuit breaker and wire clips hinged on the wire fixing plate to fix the wires, which strengthen the connection between the wires and the circuit breaker, and are not easy to disconnect when the wires are pulled connect.

(4) There is a sealing cover elastically sliding on the wiring hole to prevent electric shock when touching the wiring terminal during wiring.

(5) A bump is provided on the outer end surface of the sealing cover, which is convenient to move the sealing cover.

(6) A water baffle is slid and inserted on the main body of the circuit breaker. There is water in the operating environment of the circuit breaker to avoid leakage of the circuit breaker due to wetting, and the shell structure of the water baffle can protect the circuit breaker from external forces. Damage occurs on impact.

Description of drawings

The accompanying drawings constituting a part of the utility model are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is a schematic structural diagram of a circuit breaker according to an embodiment of the present invention;

Fig. 2 is a structural schematic diagram of the water retaining plate described in the embodiment of the present invention;

Fig. 3 is a schematic structural diagram of the sealing cover described in the embodiment of the present invention;

Explanation of reference signs:

1-shell, 2-wiring hole, 3-installation hole, 4-first indicator light, 5-second indicator light, 6-third indicator light, 7-fourth indicator light, 8-wire fixing plate, 9 -clamp, 901-clamping part, 902-mounting plate, 903-connecting hole, 10-sealing cover, 1001-projection, 11-chute, 12-spring, 13-water retaining plate, 14-slider.

detailed description

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

This embodiment relates to a circuit breaker, as shown in Figure 1, including a housing 1 made of insulating and flame-retardant materials. The upper and lower ends of the housing 1 of the circuit breaker are respectively provided with a plurality of wiring holes 2. 2 is provided with connection terminals, and is also provided with a plurality of installation holes 3, and screws are installed in the installation holes 3 to fix the wires on the connection terminals. A circuit breaker main body placed in the casing 1 is arranged between the terminals at both ends, and the circuit breaker main body is a common main body structure of an existing circuit breaker. A plurality of indicator lights corresponding to the connecting terminals are provided on the housing 1, and a ground terminal is also provided on the housing 1. One end of the indicator lights is connected to a connecting terminal through a current-limiting resistor, and the other end of the indicator lights is connected to a connecting terminal. One end is connected to the ground terminal.

In this embodiment, a first indicator light 4, a second indicator light 5, a third indicator light 6 and a fourth indicator light 7 are respectively provided at the upper and lower ends of the circuit breaker housing 1, which can indicate the charging status of each terminal. , When a circuit break occurs, it is convenient to find out the location of the circuit breaker, and judge whether the circuit breaker is damaged or the circuit breaker is disconnected at the terminal. In the case of an open circuit, if the first indicator light 4 and the second indicator light 5 are extinguished, it indicates that the connection terminal at the first indicator light 4 may be disconnected; The second indicates that the inside of the circuit breaker may be disconnected; the first indicator light 4 and the second indicator light 5 are both on, and if an open circuit occurs, it indicates that the connection terminal at the second indicator light 5 may be disconnected. Utilizing the on-off situation of the third indicator light 6 and the fourth indicator light 7, the position of the disconnection of another electric wire can be judged in the same way.

In this embodiment, the indicator light is a neon tube, and the indicator light is a neon tube, which is resistant to high voltage and has a simple circuit. It is enough to connect a 10M ohm resistor in series with the neon tube, and it is not easy to be damaged.

In this embodiment, a wire fixing plate 8 is provided at the upper and lower ends of the circuit breaker, and a wire clamp 9 for fixing wires is hinged on the wire fixing plate 8, and the wire clamp 9 includes two arc-shaped clamping parts 901, one end of the clamping part 901 is hinged on the wire fixing plate 8, and the wire clamp 9 also includes a mounting plate 902 which is arranged at one end of the clamping part 901 and connects the two clamping parts 901, and is provided with a connection on the mounting plate 902. hole 903, the mounting plate 902 is fixed on the wire fixing plate 8 through the connecting hole 903 by a screw. The setting of the wire fixing plate 8 and the wire clamp 9 strengthens the connection of the wires, and when the wires are pulled, it is difficult to disconnect the connection.

In this embodiment, as shown in FIG. 3 , an installation groove is provided inside the wiring hole 2, and a sealing cover 10 is slidably connected in the installation groove, and the sealing cover 10 is connected to the housing 1 through an elastic member. The elastic member is Spring 12, under the action of spring 12, the sealing cover 10 can slide along the installation groove to close the wiring hole 2, so as to prevent electric shock when touching the wiring terminals during wiring. A bump 1001 is provided on the outer end surface of the sealing cover 10 to facilitate the movement of the sealing cover.

In this embodiment, as shown in FIG. 2 , the circuit breaker also includes a water retaining plate 13 with a U-shaped cross section. Slide grooves 11 are arranged symmetrically on both sides of the circuit breaker housing 1 . A slider 14 is provided on the inner side, and the water blocking plate 13 is covered on the housing 1 due to the insertion fit of the slider 14 in the chute 11 . The water retaining plate 13 is slid and inserted on the circuit breaker housing 1, and when there is water in the circuit breaker’s operating environment, it can prevent the circuit breaker from getting wet and leakage occurs, and the shell structure of the water retaining plate 13 can be compared with the circuit breaker housing 1. Provide protection to prevent damage when impacted by external forces.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (6)

1. A circuit breaker, comprising a housing made of insulating and flame-retardant materials, a plurality of wiring holes are respectively arranged at the upper and lower ends of the housing, wiring terminals are arranged in the wiring holes, and wiring terminals are arranged between the wiring terminals at both ends. There is a main body of the circuit breaker placed in the housing, which is characterized in that: a plurality of indicator lights are provided on the housing corresponding to the wiring terminals, and a grounding terminal is also provided on the housing, and one end of the indicator lights is current-limited The resistor is connected to a connection terminal, and the other end of the indicator light is connected to the ground terminal. 2. The circuit breaker according to claim 1, wherein the indicator light is a neon tube. 3. The circuit breaker according to claim 1, characterized in that: wire fixing plates are provided at the upper and lower ends of the housing, and wire clamps are hinged on the wire fixing plates, and the wire clamps include two arc-shaped One end of the clamping part is hinged on the wire fixing plate, and the other end of the clamping part is provided with a mounting plate, and a connecting hole is provided on the mounting plate. 4. The circuit breaker according to claim 1, wherein a mounting groove is provided inside the wiring hole, a sealing cover is slidably connected to the mounting groove, and the sealing cover is connected to the housing via an elastic member. 5. The circuit breaker according to claim 4, characterized in that: a protrusion is provided on the outer end surface of the sealing cover. 6. The circuit breaker according to claim 1, characterized in that: the circuit breaker also includes a water retaining plate with a U-shaped cross-section, chute is symmetrically arranged on both sides of the main body of the circuit breaker, and two inner sides of the water retaining plate A slide block is arranged on the side, and the water blocking plate is covered on the housing due to the insertion of the slide block in the chute.