CN2264367Y

CN2264367Y - Contact wire thermal inducting component

Info

Publication number: CN2264367Y
Application number: CN 96237145
Authority: CN
Inventors: 陈建强
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-07-03
Filing date: 1996-07-03
Publication date: 1997-10-08
Anticipated expiration: 2006-07-03

Abstract

The utility model relates to a contact wire thermal inducting component. The utility model is characterized in that the utility model is provided with a fixed seal casing 7, wherein, both upper and lower sides of the fixed seal casing 7 are respectively provided with lead-in and lead-out wiring terminals of an external power supply. The interior of the fixed seal casing 7 is provided with a metal rotor 2 which can be fastened to a conducting wire 1 by a fixed contact 4. A metal stator 3 is fixed to a proper position opposite to the metal rotor 2. The utility model is also provided with a step-down resistor 6; one end of the step-down resistor 6 is connected with the metal stator 3 via a conducting wire, and the other end of the step-down resistance 6 outputs via a leading ware.

Description

Contact lead thermal induction element

The utility model relates to a kind of thermal induction element.

At present, because of the lead heating fire that leads to that catches fire happens occasionally, suffering heavy losses of the lives and properties that cause, though it is various to be used for the safety locking motion of electrical equipment, and still in constantly research and invention, but also be not used in the safety monitoring device of lead self, though also the someone attempts to take some ways or device to come also do not have effective way or device to emerge to the lead monitoring always.

The purpose of this utility model provides a kind of thermal induction element, and it can feel rapidly that conductor temperature raises, and can demonstrate these variation of temperature situations at last in some way by its certain electronic circuit of output terminal control.

Technical solution of the present utility model is to have to seal a shell admittedly, on the upper and lower faces that seals shell admittedly, fixing the inlet wire of external power supply, the binding post of outlet, admittedly sealing the metal moving plate that has can be fixed in by fixed contact on the no exoperidium lead in the shell, lead is connected with two binding posts, appropriate location on the opposite of metal moving plate is fixed with a metal stator, a dropping resistor is arranged, one end of dropping resistor links to each other with the metal stator by lead, and the other end is by lead-in wire output.

Principle of work of the present utility model is when the electric current of lead increases, the temperature that will cause lead raises, through fixed contact metal moving plate simultaneous temperature is raise, when temperature rises to certain the time, the effect owing to expand with heat and contract with cold, moving plate contacts with stator, and the voltage in the lead is by exporting with lead-in wire behind moving plate, stator and the dropping resistor like this.

The utility model can be by changing the material of moving plate, and size and moving plate just can make the conductor temperature rising under different numerical value with distance between the stator, and moving plate contacts with stator, so that this element is worked under different temperature.

The utility model can be installed metal moving plate and metal stator more than two pairs in that sensing element is inner, also promptly two with upper contact, make it the plural temperature of while may command.

Thermal induction element of the present utility model is contained in the inlet wire inlet end of load, and load can only be an electrical equipment, but also can be meant the whole using electricity system in building, a building, so thermal induction element can be a series of products.

The utility model has the advantages that and to feel rapidly that conductor temperature raises, and can demonstrate these variation of temperature situations at last in some way by the certain electronic circuit of its output terminal control.The utility model is simple in structure, and element is a solid seal apparatus, is not subjected to temperature, humidity, and the influence of extraneous factors such as dust can be used under different voltage, and in normal operation circuit, not power consumption of element itself does not influence circuit working, can long term.

Below in conjunction with accompanying drawing embodiment of the present utility model is described,

Fig. 1 the utility model organigram;

Fig. 2 two contact application example of the present utility model organigram;

Fig. 3 two contact application example of the present utility model conductor temperature warning circuit synoptic diagram.

Shown in Fig. 1,2,3, the utility model has one to seal shell 7 admittedly, on the upper and lower faces that seals shell 7 admittedly, fixing the inlet wire of external power supply, the binding post of outlet, in sealing shell 7 admittedly, there are two can be fixed in metal moving plate 2 on the lead 1 of no exoperidium by fixed contact 4, lead 1 links to each other with two binding posts, on the appropriate location on the opposite of metal moving plate 2, all be fixed with a metal stator 3, metal moving plate 2 be shaped as a crooked reed shape.Two dropping resistors 6 are arranged, and an end of dropping resistor 6 links to each other with metal stator 3 by lead, and the other end is by lead-in wire output.As Fig. 3, the inlet wire of external power line with seal shell 7 admittedly on the binding post of end face link to each other, outlet links to each other with the binding post that seals shell 7 bottom surfaces admittedly, two output lines 8 are respectively through going into the zero line of external power line behind pilot lamp A, the B.

As shown in Figure 3, the conductor temperature warning circuit that double-contact lead thermal induction element is formed, the left contact contact temperature of sensing element is transferred at 60 ℃, and the contact temperature of right contact is transferred at 80 ℃, like this, when conductor temperature increases to 60 ℃, pilot lamp A is luminous, and when conductor temperature increased to 80 ℃, pilot lamp A, B were luminous, if change pilot lamp into boom unit, just become auditory tone cues.

Claims

1, contact lead thermal induction element, it is characterized in that having one to seal shell (7) admittedly, seal admittedly shell (7) on, fixing the inlet wire of external power supply on the following two sides, the binding post of outlet, in sealing shell (7) admittedly, there is one can be fixed in metal moving plate (2) on the no exoperidium lead (1) by fixed contact (4), lead (1) links to each other with two binding posts, appropriate location on the opposite of metal moving plate (2) is fixed with a metal stator (3), a dropping resistor (6) is arranged, one end of dropping resistor (6) links to each other with metal stator (3) by lead, and the other end is by lead-in wire output.

2, contact lead thermal induction element according to claim 1 is characterized in that the crooked reed shape that is shaped as of metal moving plate (2).

3, contact lead thermal induction element according to claim 1 is characterized in that having metal moving plate (2) and metal stator (3) more than two pairs.