CN202443885U - Integrated dual-power automatic transfer switch of molded case circuit breaker - Google Patents

Abstract

The utility model discloses an integrated dual-power automatic transfer switch of a molded case circuit breaker. The integrated dual-power automatic transfer switch comprises a common power circuit breaker (1), a spare power circuit breaker (2), a controller (3) and an operating mechanism (4), wherein the common power circuit breaker (1) and the spare power circuit breaker (2) form a one-piece circuit breaker (12), the controller (3) is arranged in the middle of the one-piece circuit breaker (12) and located in a groove between the common power circuit breaker (1) and the spare power circuit breaker (2), and the operating mechanism (4) is arranged above the one-piece circuit breaker (12) and the controller (3); and the one-piece circuit breaker (12), the controller (3) and the operating mechanism (4) are arranged in an integrated shell (6). The integrated dual-power automatic transfer switch, provided by the utility model, has the advantages of compact structure, small volume, artistic appearance, convenience for installation and wiring, safety and reliability, and can be widely applied to all kinds of dual-power automatic transfer switches.

Description

An integral dual power supply automatic transfer switch for a molded case circuit breaker

technical field

The utility model belongs to the field of low-voltage electrical appliances, in particular to an integral dual-power automatic transfer switch for a molded case circuit breaker.

Background technique

The existing molded case circuit breaker type dual power automatic transfer switch, as shown in Figure 1, consists of a common power circuit breaker 1, a backup power circuit breaker 2, a controller 3, and an operating mechanism 4. The common power circuit breaker 1 and the backup power circuit breaker 2 are respectively assembled on an iron base plate 5 to form a common dual power automatic transfer switch, the controller 3 is assembled on one side of the base plate 5, and the operating mechanism 4 is located on the common power circuit breaker 1 and above the backup power circuit breaker 2. Its working principle is: when the power supply of the common power supply 1 is normal, the motor of the control operating mechanism of the controller 3 is energized, drives the operating mechanism 4 to disconnect the spare circuit breaker 2, closes the common power supply circuit breaker 1, and connects the common power supply; When the power supply is abnormal, the controller 3 controls the motor of the operating mechanism to drive the operating mechanism 4 to disconnect the common power circuit breaker 1, close the backup circuit breaker 2, and connect the backup power supply; when the normal power supply returns to normal power supply, the controller 3 and control the operating mechanism 4 to disconnect the standby circuit breaker 2, close the common power circuit breaker 1, and connect the common power supply. the

The above-mentioned existing dual-power automatic transfer switch has the following disadvantages: (1) Since it is an assembled form, the structure is simple, the volume is large, and the appearance is poor; (2) It is difficult to accurately position the parts when they are assembled, resulting in troublesome assembly adjustment and poor reliability. .

Utility model content

The utility model aims to solve the following problems: the existing dual-power automatic transfer switch has the problems of simple structure, large volume, poor appearance, troublesome assembly and adjustment, and poor reliability.

The technical solution adopted to solve the above problems is: a molded case circuit breaker integral double power automatic transfer switch, including a common power circuit breaker 1, a backup power circuit breaker 2, a controller 3, an operating mechanism 4, a common power circuit breaker 1 and The backup power circuit breaker 2 forms a conjoined circuit breaker 12, the controller 3 is arranged in the middle of the conjoined circuit breaker 12 and is located in the groove between the common power circuit breaker 1 and the backup power circuit breaker 2, and the operating mechanism 4 is arranged on Above the integrated circuit breaker 12 and the controller 3; the integrated circuit breaker 12, the controller 3, and the operating mechanism 4 are all arranged in an integral housing 6.

In order to observe and adjust the state of the controller 3 conveniently, a display screen 7 is arranged at the middle position of the upper front end of the housing 6 , and the display screen 7 is electrically connected to the controller 3 . Through this setting, the state of the controller 3 can be displayed and adjusted on the display screen 7 .

The beneficial effects of the utility model are: an integral double power supply automatic transfer switch has been developed, which has a compact structure and a small volume. Under the condition of applying the same current specification, the utility model has a width dimension of about 70% of the prior art; Beautiful appearance, convenient installation and wiring, safe and reliable.

Due to the above beneficial effects, the utility model is widely used in various dual-power automatic transfer switches.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the prior art;

Fig. 2 is a structural schematic diagram of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Referring to Fig. 2, the utility model is provided with a conjoined circuit breaker 12, and a common power circuit breaker 1 and a backup power circuit breaker 2 are respectively arranged on the left and right sides of the conjoined circuit breaker 1, wherein the common power circuit breaker 1, the spare power circuit breaker The bases of the power circuit breakers 2 are connected by reinforcing ribs to form a connected circuit breaker 12 . The controller 3 is set in the groove between the common power circuit breaker 1 and the backup power circuit breaker 2 in the middle of the integrated circuit breaker 12, and is set above the normal power circuit breaker 1, the backup power circuit breaker 2 and the controller 3 The operating mechanism 4, then, contains the common power circuit breaker 1, the standby power circuit breaker 2, the controller 3, and the operating mechanism 4 in an integral housing 6. The display screen 7 of the controller 3 is arranged in the middle position of the upper front end of the casing 6, forming an integral double power automatic transfer switch of a molded case circuit breaker. In order to observe the state of the controller 3 and set the operation program conveniently, a display screen 7 is arranged at the middle position of the front upper end of the housing 6 , and the display screen 7 is electrically connected to the controller 3 . Through this setting, the state of the controller 3 can be displayed and adjusted on the display screen 7 .

The integrated circuit breaker in the utility model is a molded case circuit breaker, and its frame current includes 100A, 225A, 400A, 630A frame, and the number of poles includes 3P, 4P.

The working principle of the utility model is the same as that of the existing double power supply automatic transfer switch.

Claims (2)

1. A molded case circuit breaker integrated double power automatic transfer switch, including a common power circuit breaker (1), a backup power circuit breaker (2), a controller (3), and an operating mechanism (4), characterized in that: The common power circuit breaker (1) and the standby power circuit breaker (2) form a conjoined circuit breaker (12), and the controller (3) is set on the conjoined circuit breaker (12) and located in the groove between the common power circuit breaker (1) and the standby power circuit breaker (2), the operating mechanism (4) is set between the connected circuit breaker (12) and Above the controller (3); the connected circuit breaker (12), the controller (3), and the operating mechanism (4) are all arranged in an integral housing (6). 2. An integral dual-power automatic transfer switch for a molded case circuit breaker as claimed in claim 1, characterized in that: a display screen (7) is provided at the middle of the upper front end of the housing (6), so that The above-mentioned display screen (7) is electrically connected with the above-mentioned controller (3).

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