CN201084246Y

CN201084246Y - A residual current type electric fire detector

Info

Publication number: CN201084246Y
Application number: CNU2007200443700U
Authority: CN
Inventors: 管瑞良; 潘振克; 张晓锋; 王炯华
Original assignee: Changshu Switchgear Manufacturing Co Ltd
Current assignee: Changshu Switchgear Manufacturing Co Ltd
Priority date: 2007-09-30
Filing date: 2007-09-30
Publication date: 2008-07-09
Anticipated expiration: 2017-09-30

Abstract

The utility model discloses a residual current type electrical fire detector, belonging to monitor equipment of the low-voltage electrical apparatus, which comprises a circuit breaker and a network communication module; wherein, the circuit breaker is a molded case circuit breaker with the functions of the residual current process and the residual current protection; the network communication module is arranged on the lateral part of the circuit breaker. The utility model has the advantages that (1) compared with the prior art, the volume is decreased by over 40%, (2) the structure is simple, the quantity of parts is small, as fixed, the network communication module is inserted into and matched with the lateral part of the molded case circuit breaker with the function of residual current protection, the process of fixing is convenient, and that (3) the zero sequence transformer is unnecessary to be connected in series with the circuit breaker, the extra electrical connection contact is unnecessary, and the reliability of the whole system actions is raised, because the circuit breaker is a molded case circuit breaker with the functions of the residual current process and the residual current protection.

Description

The residual-current electrical fire detector

Technical field

The utility model relates to a kind of residual-current electrical fire detector, is to the improvement of existing residual-current electrical fire panel detector structure, belongs to supervision, watch-dog in the low-voltage electrical apparatus.

Background technology

The residual-current electrical fire detector is an a kind of important on-site terminal device of gathering multiple electric disaster hidden-trouble information, its function mainly contains the residual current detection alarm and realizes microcomputer Long-distance Control etc. by configuration software, applicable to complex circuit such as the high factory of electrical fire generation probability, large-scale storehouse, office, commercial building, hotel, dwelling house and recreation place and occasion that reliability, security, the dirigibility of power supply are had relatively high expectations.

Common in the market residual-current electrical fire detector comprises shell body and is installed separately isolating switch in shell body independently of one another, zero-sequence transformer, the residual current control module, network communication module, described isolating switch is traditional breaker of plastic casing, described zero-sequence transformer and conventional circuit breaker are in series, described residual current control module be arranged on conventional circuit breaker around, residual current to the zero-sequence transformer sampling is handled, comprise calculating, show etc., described network communication module is connected with the residual current control module, and the signal that the residual current control module was handled transmits with host computer communicates by letter.The residual-current electrical fire detector of this structure, the defective of its existence is: at first, owing to isolating switch, zero-sequence transformer, residual current control module, be installed in the shell body to the network communication module split, make the one-piece construction of this detector disperse, volume is big, shared installing space is many, can not embody intensivism; Secondly, isolating switch adopts traditional breaker of plastic casing, Pei Zhi zero-sequence transformer and isolating switch are in series in addition, not only complex structure, parts are many, but also increased electric connecting point, and electric connecting point increases, and can increase contact resistance, the thermal value of increase system reduces the reliability that total system is moved.

Summary of the invention

It is little, easy for installation that the purpose of this utility model has provided a kind of volume, residual-current electrical fire detector simple in structure, that reliability is high.

For achieving the above object; technical scheme provided by the utility model is: a kind of residual-current electrical fire detector; comprise isolating switch and network communication module; be characterized in: described isolating switch is the band residual current protecting breaker of plastic casing with residual current processing capacity, and described network communication module is installed on the described isolating switch and is positioned at the sidepiece of isolating switch.

Be socket connection between network communication module described in the utility model and the isolating switch.

The utility model is because after adopting said structure, one of advantage that has, by band residual current protecting breaker of plastic casing and network communication module matched constitute residual electricity streaming appliance fire detector of the present utility model with existing by conventional circuit breaker, zero-sequence transformer, residual current control module, be installed in the residual electricity streaming appliance fire detector that constitutes in the shell body to the network communication module split and compare, volume will reduce more than 40%; Two, simple in structure, parts are few, only need when mounted the network communication module inserting is got final product at band residual current protecting breaker of plastic casing sidepiece, it is very convenient to install; Three, since described isolating switch be band residual current protecting breaker of plastic casing with residual current processing capacity; need not again zero-sequence transformer and isolating switch to be in series; therefore there is not extra electric connecting point, thereby can improves the reliability of total system action.

Description of drawings

Fig. 1 is an example structure sketch of the present utility model.

Fig. 2 is the grafting synoptic diagram of isolating switch described in the utility model and network communication module.

Among the figure: 1. isolating switch, 11. zero-sequence transformer, 12. slots; 2. network communication module, 21 pins.

Embodiment

For the auditor and the public who makes Patent Office can further understand technical spirit of the present utility model and beneficial effect, the applicant is described below with the concrete but embodiment of nonuniqueness:

See also accompanying drawing, the utility model residual-current electrical fire detector comprises isolating switch 1 and network communication module 2, and the band residual current protecting breaker of plastic casing of described isolating switch 1 for having the residual current processing capacity comprises zero-sequence transformer 11 in it; Described network communication module 2 is installed on the described isolating switch 1 and is positioned at the sidepiece of isolating switch 1; it shown in the figure right side; when mounted, only need network communication module 2 insertings are got final product in the slot that band residual current protecting breaker of plastic casing 1 sidepiece is reserved, it is very convenient to install.Preferably, as Fig. 2, be concaved with slot 12 on the housing of the sidepiece of band residual current protecting breaker of plastic casing, the sidepiece of network communication module 2 extends the pin 21 that matches with described slot 12.Pin 21 is inserted the grafting of promptly having finished isolating switch 1 and network communication module 2 in the slot 12.The structure of slot 12 and pin 21 can have multiple variation, gives an example no longer one by one here.

The utility model utilizes the zero-sequence transformer 11 of band residual current protecting breaker of plastic casing 1 inherence to gather the residual current information in use, and its power supply is directly taken from the three-phase supply of the main circuit that isolating switch 1 connect, and need not accessory power supply.Band residual current protecting breaker of plastic casing 1 has intelligent residual current monitoring processing capacity; can the residual current that zero-sequence transformer 11 is gathered be calculated, liquid crystal display residual current size; and has a fault memory function; can store the last residual current failure message, maintenance and inspection are convenient.Network communication module 2 insertings are at band residual current protecting breaker of plastic casing 1 sidepiece; so that will transmit to host computer by the signal that band residual current protecting breaker of plastic casing 1 inter-process is crossed; upload residual current instantaneous value, failure message, status information in real time, realize telecommunication.

Claims

1. residual-current electrical fire detector; comprise isolating switch (1) and network communication module (2); it is characterized in that the band residual current protecting breaker of plastic casing of described isolating switch (1) for having the residual current processing capacity, described network communication module (2) is installed on the described isolating switch and is positioned at the sidepiece of isolating switch (1).

2. residual-current electrical fire detector according to claim 1 is characterized in that being between described network communication module (2) and the isolating switch (1) socket connection.