CN205911252U - Circuit breaker that uses in outdoor circuit - Google Patents

Abstract

The utility model discloses a circuit breaker used in outdoor circuits, which comprises an insulating shell, a conductive pillar, an iron core and a coil, the conductive pillar and the iron core are arranged in the insulating shell, and the conductive pillar and the iron core are connected with the insulating shell respectively. Fixed connection, the coil is installed on the outside of the iron core, an armature is provided on the conductive support, the armature is hinged to the conductive support, an insulating plate is provided on the armature, a short-circuit ring is provided below the armature, and the insulating A spring is installed at one end of the plate, and the bottom of the spring is connected with an adjusting bolt. The insulating plate is provided with a roller and a pull rod. The pull rod is bent, and a rotating shaft is installed at one end of the pull rod. It has good insulation effect, safe and reliable use, high structural stability, and can realize long-distance control.

Description

A circuit breaker used in an outdoor circuit

technical field

The utility model relates to a circuit breaker used in outdoor circuits.

Background technique

A circuit breaker refers to a switching device that can close, carry and break current under normal circuit conditions and can close, carry and break current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The division of high and low voltage boundaries is relatively vague. Generally, those above 3kV are called high-voltage electrical appliances. Circuit breakers can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, and automatically cut off the circuit when they are severely overloaded, short-circuited, or under-voltage. Its function is equivalent to a fuse-type switch. Combination with overheating and underheating relays, etc. Moreover, there is generally no need to change parts after breaking the fault current. At present, it has been widely used. Power distribution is an extremely important link in the generation, transmission and use of electricity. The power distribution system includes transformers and various high and low voltage electrical equipment, and the low voltage circuit breaker is an electrical appliance with a large amount of use.

The main contact of the low-voltage circuit breaker is closed manually or electrically. After the main contact is closed, the free tripping mechanism locks the main contact in the closed position. The coil of the overcurrent release and the thermal element of the thermal release are connected in series with the main circuit, and the coil of the undervoltage release is connected in parallel with the power supply. When the circuit is short-circuited or seriously overloaded, the armature of the over-current release will pull in to make the free tripping mechanism act, and the main contact will disconnect the main circuit. When the circuit is overloaded, the thermal element of the thermal release will generate heat to bend the bimetal sheet, pushing the free release mechanism to act. When the circuit is undervoltage, the armature of the undervoltage release is released.

At present, the existing circuit breakers have average insulation effect and average safety, and are inconvenient for remote control.

Utility model content

The technical problem to be solved by the utility model is to provide a circuit breaker used in outdoor circuits that has good insulation effect, safe and reliable use, high structural stability and can realize remote control.

In order to solve the above problems, the utility model adopts the following technical solution: a circuit breaker used in outdoor circuits, including an insulating case, a conductive support, an iron core and a coil, the conductive support and the iron core are arranged in the insulating case, and the The conductive pillar and the iron core are respectively fixedly connected with the insulating shell, the coil is installed outside the iron core, an armature is arranged on the conductive pillar, the armature is hinged with the conductive pillar, an insulating plate is arranged on the armature, and the armature A short-circuit ring is arranged below, a spring is installed at one end of the insulating plate, an adjusting bolt is connected to the bottom of the spring, a roller and a pull rod are arranged on the insulating plate, the pull rod is bent, and a rotating shaft is installed at one end of the pull rod .

Preferably, the insulating plate is fixedly connected with the armature to keep the structure stable and reliable.

Preferably, the adjusting bolt is threadedly connected with the insulating casing, so that the position of the spring can be easily adjusted.

Preferably, the roller is arranged at the end of the pull rod, which is convenient for the pull rod to adjust the position of the roller.

Preferably, a support rod is provided under the rotating shaft to keep the structure stable and reliable.

The beneficial effects of the utility model are as follows: the insulation shell and the insulation plate provided can keep the insulation effect good, and the use is safe and reliable; The position of the distance adjustment armature maintains easy manipulation.

Description of drawings

Fig. 1 is a structural diagram of a circuit breaker used in an outdoor circuit of the present invention.

detailed description

As shown in Figure 1, a circuit breaker used in an outdoor circuit includes an insulating case 1, a conductive support 2, an iron core 3 and a coil 4, the conductive support 2 and the iron core 3 are arranged in the insulating case 1, and the The conductive pillar 2 and the iron core 3 are respectively fixedly connected with the insulating shell 1, the coil 4 is installed on the outside of the iron core 3, the conductive pillar 2 is provided with an armature 5, the armature 5 is hinged with the conductive pillar 2, and the armature 5 is provided with an insulating plate 6, a short-circuit ring 7 is provided under the armature 5, a spring 8 is installed at one end of the insulating plate 6, an adjusting bolt 9 is connected to the bottom of the spring 8, and a roller is provided on the insulating plate 6. 10 and a pull rod 11, the pull rod 11 is bent, and a rotating shaft 12 is installed at one end of the pull rod 11.

The insulating plate 6 is fixedly connected to the armature 5 .

The adjusting bolt 9 is threadedly connected with the insulating casing 1 .

The roller 10 is arranged at the end of the pull rod 11 .

A support rod 13 is arranged below the rotating shaft 12 .

The beneficial effects of the utility model are as follows: the insulation shell and the insulation plate provided can keep the insulation effect good, and the use is safe and reliable; The position of the distance adjustment armature maintains easy manipulation.

The above is only a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any change or replacement that is not thought of through creative work should be covered within the scope of protection of the utility model .

Claims (5)

1. A circuit breaker used in an outdoor circuit, characterized in that: it comprises an insulating casing, a conductive support, an iron core and a coil, the conductive support and the iron core are arranged in the insulating casing, and the conductive support and the iron core are respectively connected to the The insulating shell is fixedly connected, the coil is installed on the outside of the iron core, an armature is arranged on the conductive pillar, the armature is hinged to the conductive pillar, an insulating plate is arranged on the armature, and a short-circuit ring is arranged under the armature. A spring is installed at one end of the insulating plate, and an adjusting bolt is connected to the bottom of the spring. Rollers and a pull rod are arranged on the insulating plate. The pull rod is bent and arranged, and a rotating shaft is installed at one end of the pull rod. 2. The circuit breaker used in outdoor circuits according to claim 1, characterized in that: the insulating plate is fixedly connected to the armature. 3. The circuit breaker used in outdoor circuits according to claim 1, characterized in that: the adjusting bolt is screwed to the insulating casing. 4. The circuit breaker used in outdoor circuits according to claim 1, characterized in that: the roller is arranged at the end of the pull rod. 5. The circuit breaker used in outdoor circuits according to claim 1, characterized in that: a support rod is arranged below the rotating shaft.