CN2862142Y

CN2862142Y - Electric power regulating controller

Info

Publication number: CN2862142Y
Application number: CN 200520128705
Authority: CN
Inventors: 林进益
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-22
Filing date: 2005-12-22
Publication date: 2007-01-24
Anticipated expiration: 2015-12-22

Abstract

A power regulation controlling device is designed for connecting with a load and comprises a power supply unit in electrical connection with a microprocessor unit, a signal input unit, a fuse unit, a triggering unit, an over-temperature detecting unit, and an abnormal signal output unit. When abnormal information is sent by an external temperature detecting unit of the load, the microprocessor unit immediately controls to allow the fuse of fuse unit and the silicon-controlled rectifier (SCR) of triggering unit to power off, and controls to drive the abnormal signal output unit to stop the load. The device can identify which group of fuse is in failure once the fuse causes broken circuit and controls the load to stop, thereby avoiding the yield of degraded product or waste, protecting burn-out of SCR and reducing wearing and cost of parts.

Description

Electric power is adjusted control device

Technical field

The utility model relates to a kind of electric power switching device, particularly relates to a kind of electric power adjustment control device that is used for improving power supplying efficiency.

Background technology

On the market, utilize the electric power adjuster to regulate and control the working current of facility (load), to keep facility in normal operation, this is industrial indispensable equipment.

Because the influence that electric power controller, solid-state relay have big electric current to pass through, thus higher heat can be produced, so, all can set up radiator structure at present, for example: radiating seat, fan, improve thermal effect, and then promote the degree of stability of controller.

But, existing single-phase SCR (thyristor) and single-phase SSR (solid-state relay), all be to utilize independently heat sink (fin) to do heat conduction, general setting means, when temperature arrives 55 ℃ Celsius, start fan at once and dispel the heat, and work as temperature up to 90 ℃ Celsius, whole electric control system is then controlled and is opened circuit.

Though above-mentioned temperature control mode; can reach intensification dispels the heat by fan; and high temperature is controlled the protection effectiveness of outage at once; but; with a machine tool that adopts four sections controls be example (for example: plastic rubber ejection shaping apparatus); use four single-phase SSR (solid-state relay) or single-phase SCR (thyristor) to do thermostatic control; because of four sections temperature have different requirements; the heat of relative four SSR or its workload of SCR and generation is also different; as first workload is 90%; second workload is 80%; the 3rd workload is 70%; the 4th workload is 50%; then the heat that produces relatively also is that the ratio height is different, and then first is especially big because of workload, and heat is the highest relatively; certainly will be easy to generate fault most; can't obtain average dispersion for fear of heat energy, and after breaking down, because of no abnormal measuring ability; cause facility under subnormal temperature, still to work on; then produce a large amount of defective productss and waste material, so not only influenced job schedule, gone back cost of idleness.

So, existing single-phase SSR and single-phase SCR all lack temperature detecting function, when if temperature is too high, though the fuse in the operation circuit (FUSE) can produce breaking phenomena because of overload, but plastic rubber ejaculate molding there is no abnormal detection function, escape voluntarily still can't cut off the power supply, so SSR, SCR will directly burn, add the detection output of also not having system's excess temperature abnormal signal, fail to discover at once, add the product of pining for so will cause, cause a large amount of defective productss and waste material because of the heating of certain section temperature spot is undesired, even the public security problem that easily causes electric wire to cock off, moreover, after the facility fault, must utilize ammeter to do the detection in SSR one by one or SCR loop, so be unfavorable for detecting maintenance.

The utility model content

The purpose of this utility model is to provide a kind of to be had unusual automatic outage and has the electric power adjustment control device that the excess temperature abnormal signal is informed.

Electric power of the present utility model is adjusted control device, for being connected in the load, this electric power is adjusted control device and is comprised: a power supply unit, a microprocessing unit, a signal input unit, a fuse unit, a trigger element, an excess temperature detecting unit, and an abnormal signal output unit.

This power supply unit provides all electric power supply of following each unit.

This microprocessing unit provides everything sequential operation, comparison and the processing of following each unit.

This signal input unit is electrically connected with this microprocessing unit, be used for a temperature signal with this load convert to this microprocessing unit can identification signal.

This fuse unit is electrically connected with this microprocessing unit, and has a plurality of fuses that are connected to this load, and when the temperature signal of above-mentioned load surpassed a preset value, the fuse that is connected with this load opened circuit at once.

This trigger element is electrically connected with this microprocessing unit; and have trigger circuit, a heat sink; and a plurality ofly be connected on the fuse and be installed in thyristor on this heat sink; when above-mentioned size fusible circuit, breaker; the thyristor of controlling this trigger element via this microprocessing unit also is off state, shuts down to control this load.

This excess temperature detecting unit is electrically connected with this microprocessing unit; and be installed on the heat sink of this trigger element for detected temperatures; temperature on this heat sink surpasses preset value, also notifies this microprocessing unit to the disconnected device of this thyristor, to reach the effect of overheat protector.

This abnormal signal output unit is electrically connected with this microprocessing unit, when this microprocessing unit has detected this fuse unit and opens circuit, will notify this abnormal signal output unit that this load is shut down.

Effect of the present utility model is; learn respectively by this excess temperature detecting unit and this signal input unit whether the temperature letter of this thyristor and this load produces over-temperature condition; again via the control of this microprocessor; can control at once that thyristor opens circuit and load is shut down, reach the purpose of overheat protector.

Description of drawings

Fig. 1 is a block flow diagram, and the preferable of the utility model electric power adjustment control device is described

Embodiment;

Fig. 2 is a stereo appearance figure of this preferred embodiment;

Fig. 3 is a combination partial sectional view of this preferred embodiment; And

Fig. 4 is a stereographic map, and a control circuit is described.

Embodiment

Below by most preferred embodiment and accompanying drawing electric power of the present utility model is adjusted control device and be elaborated, in the accompanying drawing:

Consult Fig. 1～3, the preferred embodiment that the utility model electric power is adjusted control device 100 comprises and is installed in a power supply unit 1, a microprocessing unit 2, an excess temperature detecting unit 3, a signal input unit 4, a fuse unit 5, a trigger element 6, the abnormal signal output unit 7 that outer cover unit 101 inside of radiating effect were made and had concurrently to an aluminium, and an indicator unit 8.Consult Fig. 4, these outer cover unit 101 1 sides are equiped with a radiator fan 102 purposes of evacuating thermal source are provided.

Consult Fig. 1～3, this electric power is adjusted control device 100 and is connected in a plurality of loads 9, and this load 9 is a kind of plastic rubber ejection shaping apparatus in the present embodiment.

This power supply unit 1 provides all electric power supply of following each unit, converts alternating current to galvanic transformer 11 and a direct current mu balanced circuit 12 is formed by one.

This microprocessing unit 2 provides everything sequential operation, comparison and the processing of following each unit.

This signal input unit 4 is electrically connected with this microprocessing unit 2, is used for the signal that a temperature signal that the external temperature detecting unit 91 with this load 9 detected converts 2 energy identifications of this microprocessing unit to.

This fuse unit 5 is electrically connected with this microprocessing unit 2, and has a plurality of fuses 51 that are connected to this load 9, and when the temperature signal of above-mentioned load 9 surpassed a preset value, the fuse 51 that is connected with this load 9 opened circuit at once.

This trigger element 6 is electrically connected with this microprocessing unit 2; and have trigger circuit that are electrically connected with above-mentioned fuse 51 61, the heat sink 62 of a locking on this outer cover unit 101; and a plurality ofly be connected to fuse 51 and be embedded thyristor 63 on this heat sink 62; when above-mentioned fuse 51 opens circuit; thyristor 63 via these microprocessing unit 2 these trigger elements 6 of control also is off state, shuts down really to control this load 9.

This excess temperature detecting unit 3 is electrically connected with this microprocessing unit 2; be one to be installed in the Temperature Detector of the heat sink 62 of this trigger element 6; temperature on this heat sink 62 surpasses preset value, also notifies 2 pairs of these thyristors 63 of this microprocessing unit to open circuit, to reach the effect of overheat protector.

This abnormal signal output unit 7 is electrically connected with this microprocessing unit 2, produces when opening circuit when this microprocessing unit 2 has detected this fuse unit 5, will notify these abnormal signal output unit 7 these loads 9 of control to be stopped status at once.

This indicator unit 8 is electrically connected with this microprocessing unit 2, has a plurality of pilot lamp 81, and pilot lamp 81 is a light emitting diode.Produce when opening circuit when this microprocessing unit 2 has detected this fuse unit 5, start this indicator unit 8 simultaneously and show with cresset.In the present embodiment, do can cooperate an alarm unit that the sound alarm function is provided the caution except utilizing this indicator unit 8, figure does not show yet.

Via above-mentioned explanation; when being used in this electric power adjustment control device 100 in this load 9 of plastic rubber ejection shaping apparatus; when the external temperature detecting unit 91 of this load 9 is sent temperature anomaly; and when delivering to this microprocessing unit 2 via this signal input unit 4; this microprocessing unit 2 is controlled the fuse 51 of this fuse unit 5 at once and the thyristor 63 of this trigger element 6 all cuts off the power supply; control this abnormal signal output unit 7 simultaneously and order about this load 9 shutdown; and this indicator unit 8 is also made abnormal show simultaneously; so; in the middle of the utility model; as long as producing, fuse one opens circuit; just can learn it is that group fuse at once; and control load 9 is shut down; avoid because of continuing running and then producing defective products or waste material; and, also can protect thyristor 63 can not burn at once, to reduce the increase of part consume and use cost.

In addition, in this preferred embodiment, five single-phase SSR (solid-state relay) or single-phase SCR (thyristor) are incorporated on the heat sink 62, so, though five independent SSR or its workload difference of SCR, but can reach spread heat by same heat radiator, the effect that temperature descends, for example, originally first workload is 90%, second workload is 80%, the 3rd workload is 70%, the 4th workload is that 60% and the 5th workload is 50%, the heat maximum that this moment, though first bore, after but the same heat sink 62 of process disperses other temperature-averaging of four, the ensemble average heat is about 70%, is 90% more than workload, 80% all descend many, so certainly will increase serviceable life.

Secondly; the guarantor who installs the semiconductor special use in the input end of five single-phase SSR or single-phase SCR respectively examines silk 51; when if load 9 is short-circuited phenomenon; can by separately independently fuse 51 reach the body of protection each SSR or SCR; the escape that cuts off the power supply voluntarily after unusual can not work on and then produce defective products or waste material, and; when single SSR or SCR loop fault; only need to replace single fuse 51, can not produce the chain damage of all circuits, and economical and practical; moreover; each fuse 51 also has independent pilot lamp 81 (see figure 2)s, so the loop can clearly show abnormality; so, then save and utilize ammeter to do the inconvenience that SSR one by one or SCR loop are detected.

Claims

1, a kind of electric power is adjusted control device, for being connected in the load, this electric power is adjusted control device and is included a power supply unit, a microprocessing unit, a signal input unit, a fuse unit, a trigger element, an excess temperature detecting unit, and an abnormal signal output unit, it is characterized in that:

This power supply unit provides all electric power supply of following each unit;

This microprocessing unit provides everything sequential operation, comparison and the processing of following each unit;

This signal input unit is electrically connected with this microprocessing unit, be used for a temperature signal with this load convert to this microprocessing unit can identification signal;

This fuse unit is electrically connected with this microprocessing unit, and has a plurality of fuses that are connected to this load, and when the temperature signal of above-mentioned load surpassed a preset value, the fuse that is connected with this load opened circuit at once;

This trigger element, be electrically connected with this microprocessing unit, and have trigger circuit, a heat sink, and a plurality ofly be connected on the fuse and be installed in thyristor on this heat sink, when above-mentioned size fusible circuit, breaker, the thyristor of controlling this trigger element via this microprocessing unit also is off state, shuts down to control this load;

This excess temperature detecting unit is electrically connected with this microprocessing unit, and is installed on the heat sink of this trigger element for detected temperatures, and the temperature on this heat sink surpasses preset value, notifies this microprocessing unit that this thyristor is opened circuit; And

This abnormal signal output unit when this microprocessing unit has detected this fuse unit and opens circuit, will notify this abnormal signal output unit that this load is shut down.

2, electric power as claimed in claim 1 is adjusted control device, it is characterized in that:

Also comprise an indicator unit, this indicator unit is electrically connected with this microprocessing unit.