CN203434589U - Distribution box protective module - Google Patents

Abstract

The utility model discloses a distribution box protective module. By arranging a current sensor, a humidity sensor and an auxiliary current sensor in a distribution box, that whether a current in the distribution box is short-circuited and leaked or not, whether the humidity in the distribution box is overhigh or not, or whether the static electricity content is overhigh or not is monitored. If a standard value is exceeded, a circuit is disconnected by an electromagnetic relay, conditions of fire hazards and the like are prevented and the security is guaranteed.

Description

A kind of distribution box protection module

Technical field

The utility model designs a kind of distribution box protection module, belongs to appliance field.

Background technology

Under the poor operating mode of some environment, or in distribution box, electrical appliance is all in more old situation, and circuit tends to occur that electric leakage, loose contact, contact produce electric arc and be discharged to the medium situation of air, and these situations very easily cause the danger such as electric shock, fire.

Utility model content

The purpose of this utility model is: a kind of technical scheme that can address the above problem is provided.

The utility model is realized by the following method:

A kind of distribution box protection module, comprise distribution box power supply three-phase circuit and user's three-phase circuit, described protection module also comprises current sensor, auxiliary current transducer, humidity sensor, main control module, transformer and electromagnetic relay, described current sensor, auxiliary current transducer, humidity sensor is all connected with main control module, the electromagnetism power supply port of described main control module and electromagnetic relay is connected, the break-make interface of electromagnetic relay is linked into the import department of power supply three-phase circuit, in described current sensor access user three-phase circuit between live wire and zero line, for detection of the current value between live wire and zero line, the described humidity sensor for detection of humidity in distribution box is arranged on distribution box inside, described auxiliary current transducer comprises conductive mesh and the current monitor for detection of static and electric leakage situation being arranged in distribution box, described current sensor, auxiliary current transducer, humidity sensor is all powered by the transformer being linked in user's three-phase circuit with main control module.

As further innovation of the present utility model, described conductive mesh is arranged on distribution box inner wall surface, between described conductive mesh and distribution box inwall, is provided with insulating barrier.

As further innovation of the present utility model, described auxiliary current transducer is microampere galvanometer.

As further innovation of the present utility model, described protection module also comprises temperature sensor and temperature-sensing element, and described temperature sensor is connected with main control module, and temperature-sensing element is connected with temperature sensor, and described temperature-sensing element is arranged on conductive mesh.

Beneficial effect

The beneficial effects of the utility model are:

The utility model by distribution box, arrange current sensor, humidity sensor and auxiliary current transducer monitor electric current in distribution box whether in short circuit electric leakage or distribution box humidity whether too high, whether static content is too high, if the value of being above standard is cut off circuit by electromagnetic relay, guarantee that safety prevents the situations such as fire.

2. the utility model is by arranging induction net and between induction net and distribution box outer wall, insulating barrier being set in distribution box, and the equipment that guaranteed causes danger to the sensitivity of the electric leakage sensing further pathway housing that also prevents from leaking electricity simultaneously.

3. the accuracy of answering in order to improve leakage inductance, it is the galvanometer of unit accuracy that the utility model adopts milliampere.

4. the utility model is also provided with temperature sensor, the local electric leakage of distribution box equipment or short circuit and while causing distribution box temperature to raise, or the working temperature of distribution box is while surpassing normal value, the cut-out circuit of making a response that system can be instant.

5. temperature-sensing element is also connected in conductive mesh than one point sensing in the past, and the utility model is netted sensing, has improved precision and the sensitivity of sensing.

Accompanying drawing explanation

Fig. 1 is the circuit diagram of this distribution box protection module.

Embodiment

Below in conjunction with accompanying drawing, be described further:

As shown in Figure 1, the utility model comprises distribution box power supply three-phase circuit and user's three-phase circuit, described protection module also comprises current sensor, auxiliary current transducer, humidity sensor, main control module, transformer and electromagnetic relay, described current sensor, auxiliary current transducer, humidity sensor is all connected with main control module, the electromagnetism power supply port of described main control module and electromagnetic relay is connected, the break-make interface of electromagnetic relay is linked into the import department of power supply three-phase circuit, between described current sensor access user three-phase circuit middle and high end live wire and zero line, described humidity sensor is arranged on distribution box inside, described auxiliary current transducer comprises conductive mesh and the current monitor being arranged in distribution box, described current sensor, auxiliary current transducer, humidity sensor is all powered by the transformer being linked in user's three-phase circuit with main control module, described conductive mesh is arranged on distribution box inner wall surface, between described conductive mesh and distribution box inwall, is provided with insulating barrier, described auxiliary current transducer is microampere galvanometer, described protection module also comprises temperature sensor and temperature-sensing element, and described temperature sensor is connected with main control module, and temperature-sensing element is connected with temperature sensor, and described temperature-sensing element is arranged on conductive mesh.

Claims (4)

1. a distribution box protection module, comprise distribution box power supply three-phase circuit and user's three-phase circuit, it is characterized in that: described protection module also comprises current sensor, auxiliary current transducer, humidity sensor, main control module, transformer and electromagnetic relay, described current sensor, auxiliary current transducer, humidity sensor is all connected with main control module, the electromagnetism power supply port of described main control module and electromagnetic relay is connected, the break-make interface of electromagnetic relay is linked into the import department of power supply three-phase circuit, in described current sensor access user three-phase circuit between live wire and zero line, for detection of the current value between live wire and zero line, the described humidity sensor for detection of humidity in distribution box is arranged on distribution box inside, described auxiliary current transducer comprises conductive mesh and the current monitor for detection of static and electric leakage situation being arranged in distribution box, described current sensor, auxiliary current transducer, humidity sensor is all powered by the transformer being linked in user's three-phase circuit with main control module.

2. a kind of distribution box protection module as claimed in claim 1, is characterized in that: described conductive mesh is arranged on distribution box inner wall surface, between described conductive mesh and distribution box inwall, is provided with insulating barrier.

3. a kind of distribution box protection module as claimed in claim 1, is characterized in that: described auxiliary current transducer is microampere galvanometer.

4. a kind of distribution box protection module as claimed in claim 1; it is characterized in that: described protection module also comprises temperature sensor and temperature-sensing element; described temperature sensor is connected with main control module, and temperature-sensing element is connected with temperature sensor, and described temperature-sensing element is arranged on conductive mesh.

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