CN2073738U

CN2073738U - Electronic ice cap

Info

Publication number: CN2073738U
Application number: CN 90214079
Authority: CN
Inventors: 刘书福; 姜福利; 鞠兰; 魏景栋
Original assignee: ELECTRONIC EQUIPMNET GENERAL FACTORY PENGLAI COUNTY
Current assignee: ELECTRONIC EQUIPMNET GENERAL FACTORY PENGLAI COUNTY
Priority date: 1990-07-06
Filing date: 1990-07-06
Publication date: 1991-03-27

Abstract

The utility model discloses an electronic ice cap, which is an electronic cool cap with sobering function used for brain protection and brain anabiosis. The electronic ice cap is composed of an inner housing, an outer housing, a heat insulation layer, a radiator, a radiator metal cover, an air guide duct, an inserted strip, a power circuit, a refrigerant circuit, a temperature control circuit, and a temperature measuring circuit. The electronic ice cap is characterized in that a semiconductor refrigerator of the refrigerant circuit which is installed in a cap body refrigerates, and a thermistor of the temperature control circuit regulates the temperature of the ice cap. The utility model can regulate and display the temperature automatically, and is an existing ideal electronic cool cap with sobering function.

Description

Electronic ice cap

The Electronic ice cap that this utility model relates to is a kind of brain protection and clear-headed cold medicated cap of the electronics of cerebral resuscitation of being used in.

Existing ice cap is the mechanical refrigeration of compressor freon, and volume is big, heaviness, manufacturing process is all complicated with maintenance, and stream time is short and fragile, even the ice cap product of conductor refrigeration is arranged, existence can not automatic temperature-control, the disadvantage of demonstration and radiating effect difference, thereby does not reach intended purposes.

The purpose of this utility model is to provide a kind of can solve above-mentioned disadvantage; volume is little; in light weight; processing ease; manufacturing process is simple; be applied to the brain protection and the cerebral resuscitation of many section office such as all stupors of clinical findings and inside and outside, woman, youngster, be applicable to that also open-air rescue, ambulance pass on a kind of Electronic ice cap of situations such as patient and work in hot environment.

This utility model is to realize like this, it is made of shell 1, thermal insulation layer 2, inner shell 3, radiator 5, panel 6, radiator metal cap 10, guide duct 11, power circuit, refrigerant circuits, temperature control circuit, temperature measurement circuit, the semiconductor cooler 4 that is characterized in refrigerant circuits is installed between inner shell 1 and the radiator 5, and two tip nodes of semiconductor cooler 4 are connected on the motor D and the K of refrigerant circuits respectively by lead ₃On, radiator 5 is fixed on the shell 1, radiator metal cap 10 is fixed on the radiator 5, one end of guide duct 11 coincide on radiator metal cap air inlet, the other end is connected on the motor D, two critesistor 8,9 of temperature control circuit and the pick off 7 of temperature measurement circuit are contained on the inner shell, and an end of critesistor 8,9 is attempted by on the power cathode by lead, and its other end is connected on the R in the temperature control circuit respectively ₂And W ₂An end on, 4 feet of pick off 7 are connected on R ₆, R ₇Between, 3 feet are connected on W ₃An end, 1,2 feet are attempted by R ₈An end.

Power circuit of the present utility model is work like this: the 220V alternating current drops to 18V through transformator B, D ₁-4 rectifications, IC ₁Obtain the 12V dc source after the voltage stabilizing, to supply with refrigerant circuits and temperature control circuit power supply, C ₁, C ₄Be filter capacitor, C ₂Be used for improving the ripple of supply voltage, C ₃Can improve the transient response characteristic, the output impedance when reducing high frequency.LED ₁Be the power supply indication, the 12V dc source is through IC ₃, IC ₄Obtain after the voltage stabilizing ± the 9V power supply, supply with the temperature measurement circuit power supply, the 12V dc source is through IC ₅After the voltage stabilizing, obtain+6V, supplying temperature shows IC ₈, C ₆, C ₇, C ₈, C ₉, C ₁₀Be filter capacitor.

Refrigerant circuits: 4 is semiconductor cooler CTI, K ₂For fast cold switch, work as K ₂When closed, CTI is not controlled by temperature control circuit, and direct energized makes temperature drop to medical treatment and goes up required temperature-2 ℃.D is a blower fan, when the CTI hot-side temperature is raised to 60 ℃, closed K ₃Carry out air blast cooling, give semiconductor cooler 4 heat radiations by the guide duct 11, radiator metal cap 10, the radiator 5 that are installed on the medicated cap body, to guarantee service life and the cooling effect of CTI.

Temperature control circuit: IC ₂And peripheral cell is formed temperature control circuit.IC ₂Work in bistable, detector unit Rt ₁8, Rt ₂9 is negative temperature coefficient NTC critesistor, and when the rising of ice cap temperature, the critesistor resistance diminishes, and works as IC ₂When 2 foot current potentials are lower than 1/3Vcc (4V), IC ₂3 feet output high level, relay J work, normally open contact J ₁Get electric adhesive, semiconductor cooler 4 work, the ice cap temperature descends, and it is big that the critesistor resistance becomes, and works as IC ₂When 6 foot current potentials are higher than 2/3Vcc (8V), IC ₂3 foot output low levels, J dead electricity, J ₁Disconnect, CTI quits work, and rationally regulates W ₁, W ₂Can make the medical treatment of ice cap temperature adaptation temperature required.

Temperature measurement circuit: mainly form heat sensitive sensor 7 and IC by novel semi-conductor integrated circuit heat sensitive sensor 7 and three half word voltage panel DVP ₇Form the sensing translation circuit, IC ₈Be the digital voltage plate, in the time of 0 ℃, pick off 7 output voltages are-2.73V, obtain 0V output in order to compensate this voltage, have used potentiometer W ₃And IC ₇, IC ₇Ten end input voltages be offset to-2.73V, so in the time of 0 ℃, IC ₇Output voltage can correspondingly obtain 0V output, thereby obtained corresponding centigrade output voltage, output voltage is delivered to IC ₈Input carry out temperature and show.Can measure the intravital temperature of medicated cap by being installed in the intravital pick off 7 of medicated cap.R ₇Effect be to reduce W ₃Regulating action, thereby the stability of raising-2.73V, simultaneously, W ₃Adjusting can also compensate IC ₇The offset voltage factor.

But this utility model automatic temperature-control, demonstration make radiator heat-dissipation effective by blower fan, have reached its intended purposes, are the apparatuses of medical assistance well of brain protection, cerebral resuscitation, also are the clear-headed medicated caps of present a kind of more satisfactory electronics.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is an electrical principle sketch map of the present utility model.

The explanation of accompanying drawing drawing:

1 shell; 2 thermal insulation layers; 3 inner shells; 4 semiconductor coolers; 5 radiators; 6 panels; 7 pick offs; 8 critesistor; 9 critesistor; 10 radiator metal caps; 11 guide ducts; 12 holes; K ₁On and off switch; K ₂The refrigeration switch; K ₃The fan power switch; Bx ₁, Bx ₂Electric fuse; The B AC transformer; D ₁-4 bridge rectifier diodes; C ₁～C ₁₀Filter capacitor; IC ₁, IC ₃, IC ₄, IC ₅Integrated package of pressure-stabilizing; D ₁The protection diode; LED ₁Power supply indicator; LED ₂Relay indicating light; R ₁, R ₂, R ₅, R ₆, R ₇, R ₈, R ₉Resistance; W ₁, W ₂, W ₃Adjustable resistance; IC ₂The bistable state integrated package; IC ₇The operational amplifier integrated package; IC ₈The digital voltage plate; The fourth DC relay.

To be that embodiment further specifies as follows in order to understand better below implementing with the accompanying drawing: shell 1 can adopt galvanized sheet or fiberglass to make, thermal insulation layer 2 can adopt poly-stupid ethylene, rock wool, polyamine fat to make, inner shell 3 can adopt copper coin, aluminium sheet or rustless steel, semiconductor cooler 4 can adopt CTI series, radiator 5 and radiator metal cap 10 can adopt cast aluminium to make, panel 6 can adopt rubber to make, be fixed on fixing rivet on the shell of medicated cap body two ear sides, guide duct 11 can be with rubber tube or plastic tube.By epoxy resin or neoprene inner shell, shell, thermal insulation layer are glued together, semiconductor cooler 4 usefulness heat conductive silica gels are connected between inner shell and the radiator---and the volume of ice cap is best to 35 ° of angles, top.Bore a hole 12 at place, ice cap top the line of the critesistor, pick off and the semiconductor cooler that are contained on the inner shell is connected with instrument by the hole, and be fixed on the inner shell with cyclochloride resin.Radiator metal cap 10 usefulness heat conductive silica gels are sealed on the radiator, air outlet is left at two ends, by the blowing heat radiation of motor D band wind wheel, makes radiator keep room temperature (because of the temperature difference of semiconductor cooler is 60 ℃), bad as radiator heat-dissipation, semiconductor cooler does not just have refrigeration.One end of guide duct 11 coincide on radiator metal cap air inlet, and the other end is connected on the motor D.This part of ice cap electric wiring, part is rationally installed in addition, makes an instrument, power supply indication, temperature indication, 3 switches are contained on the panel, and other electrical equipment is contained on the printed substrate, and transformator B can be contained in the below of wiring board, pick off 7 can adopt SE616, IC ₈Can adopt 5GM14433, semiconductor cooler can select for use NE555 to get final product.But this utility model AC/DC.

Claims

1, a kind of Electronic ice cap, it is made up of shell 1, thermal insulation layer 2, inner shell 3, radiator 5, panel 6, radiator metal cap 10, guide duct 11, power circuit, refrigerant circuits, temperature control circuit, temperature measurement circuit, the semiconductor cooler 4 that it is characterized in that refrigerant circuits is installed between inner shell 1 and the radiator 5, and two tip nodes of semiconductor cooler 4 are connected on the motor D and the K of refrigerant circuits respectively by lead ₃On, radiator 5 is fixed on the shell 1, radiator metal cap 10 is fixed on the radiator 5, one end of guide duct 11 coincide on radiator metal cap 10 air inlets, the other end is connected on the motor D, two critesistor 8,9 of temperature control circuit and the pick off 7 of temperature measurement circuit are contained on the inner shell, and an end of critesistor 8,9 is attempted by on the power cathode by lead, and its other end is connected on the R in the temperature control circuit respectively ₂And W ₂An end on, 4 feet of pick off 7 are connected on R ₆, R ₇Between, 3 feet are connected on W ₃An end, 1,2 feet are attempted by R ₈An end.

2, by the described Electronic ice cap of claim 1, it is characterized in that semiconductor cooler 4 usefulness heat conductive silica gels be glued between inner shell and the radiator-volume of ice cap is best to pushing up 35 ° of angles.