CN102138742A

CN102138742A - Hydrothermal mattress

Info

Publication number: CN102138742A
Application number: CN 201010623748
Authority: CN
Inventors: 丁继忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-25
Filing date: 2010-12-25
Publication date: 2011-08-03

Abstract

The invention relates to a hydrothermal mattress for bed warming. The hydrothermal mattress consists of a mattress, a water pipe, two heating barrels, two electrothermal components and a temperature control device, wherein the temperature control device controls the electrothermal components to heat the heating barrels alternatively; and water vapor or hot water is recirculated in the water pipe, so that the warming aim is fulfilled. The water pipe and the two heating barrels are made of metal materials and are communicated with one another tightly to form a sealed pipe cavity isolated from the external environment, so that in the using process, the water vapor is not dissipated, water is not required to add all the time, and the hydrothermal mattress is convenient to use, time-saving and safe.

Description

The hydro-thermal mattress

Technical field

The present invention relates to a kind of bed and go up the mattress of heating usefulness, especially use the hydro-thermal mattress of heat transfer water.

Background technology

At present, there is electromagnetic interference in known electric blanket, and harmful to user's health, improper use causes fire easily.For addressing the aforementioned drawbacks, multiple bed occurs and go up warming article with the hot water heating.The patent No. is that 200320111749.0 utility model has proposed a kind of hot water circuit device with heat transfer water, a kind of ripples cotton-padded mattress of market sale is exactly the patented product, it is made up of blanket body, water pipe, cartridge heater, heating, water storage tube, temperature controller, its water storage tube and external environment connect, and water pipe is a silica gel material, it has certain steam permeability, so in use constantly there is water vapour to drain in the air, just need add water at set intervals.The patent No. is that 96246115.6 utility model has proposed a kind of electrical autocontrol hydro-thermal mattress, it is made up of mattress, water pipe, two cartridge heaters, two heating electrodes, electric controller and screw socket safety valve, two heating electrodes alternately heat two cartridge heaters, hot water is by the water pipe reciprocation cycle, realization is heated mattress, but because be the electric pole type heating, so cartridge heater and water pipe must be nonmetallic materials such as plastics, silica gel, certain steam permeability is arranged, and safety valve is also to external environment discharge water steam, so in use also be to add water, use trouble.

Summary of the invention

In order to overcome above-mentioned shortcoming, the purpose of this invention is to provide a kind of hydro-thermal mattress that in use need not add water all the time.

The present invention solves its technical problem and the technical scheme that adopts is: it comprises mattress, water pipe, two cartridge heaters, water pipe and two cartridge heaters all are to be made by metal material, the water pipe two ends become an airtight tube chamber isolated with external environment respectively with two cartridge heater close communication, water is housed in the tube chamber, in two cartridge heater bottoms one heating is installed respectively, two heatings are electrically connected with attemperating unit, and attemperating unit is controlled two heatings alternately connection, deenergization.Attemperating unit is connected a heating power supply one cartridge heater is heated, and water is heated to seethe with excitement and produces water vapour, and along with pressure raises, water vapour or hot water constantly are pressed into water pipe, and water pipe flows to another cartridge heater at last constantly to the mattress distribute heat; In like manner, when attemperating unit disconnects this heating power supply, when connecting another heating power supply, water vapour that the water in another cartridge heater produces after boiling or hot water will flow round about by water pipe, so move in circles, and realize the heating to mattress.

Above-mentioned attemperating unit can be made up of step-down rectifier filter regulator circuit, two thermistors, comparator circuit, flip-flop circuit, amplifier circuit, relay.Two thermistors, comparator circuit, flip-flop circuit, amplifier circuit, relay are linked in sequence, and all are connected with the step-down rectifier filter regulator circuit; Relay is electrically connected with two heatings, and two thermistors are installed in respectively on two cartridge heaters.One heating heats a cartridge heater, be installed in thermistor change in resistance on this cartridge heater to when setting value, comparator is exported a signal of telecommunication, trigger through trigger, then by adhesive of amplifier control relay or release, disconnect this heating power supply and connect another heating power supply, so move in circles, thereby realize that two heatings are alternately connected, the purpose of deenergization.

Be vacuum in the airtight tube chamber that above-mentioned water pipe becomes with two cartridge heater close communication, water just can seethe with excitement at a lower temperature, makes the operation of hydro-thermal mattress more smooth and easy.

The invention has the beneficial effects as follows: because water pipe and two cartridge heaters all adopt metal material to make, and they are communicated with to become the airtight tube chamber isolated with external environment, so steam can not scatter and disappear, in use need not add water all the time, and are easy to use, save time and save worry.

Description of drawings

Below in conjunction with drawings and Examples the present invention is described in further detail.

Fig. 1 is the structural representation of first embodiment of the invention.

Fig. 2 is an electrical block diagram.

Fig. 3 is controller circuitry figure.

Fig. 4 is the iron case inner structure schematic diagram of second embodiment.

Fig. 5 is the iron case inner structure schematic diagram of the 3rd embodiment.

The specific embodiment

In the embodiment in figure 1, in mattress 1, bury four capillary brass pipe 2 underground, fix an iron case 4, horizontal fixed stainless

steel cartridge heater

3a, 3b in iron case 4, capillary brass pipe 2 two ends are connected together with

cartridge heater

3a, 3b welded top by two copper connecting tubes 8 respectively,

electrothermal tube

6a, 6b horizontal welding respectively are connected on

cartridge heater

3a, 3b inner bottom part, in

cartridge heater

3a, 3b, inject suitable quantity of water, capillary brass pipe 2 is evacuated with airtight tube chamber that

cartridge heater

3a, 3b are communicated with and seals.Negative

tempperature coefficient thermistor

5a, 5b are installed in respectively on cartridge heater 3a, the 3b outer surface,

thermistor

5a, 3b and

electrothermal tube

6a, 6b all be fixed on iron case 4 in controller 7 is electrically connected

thermistor

5a, 5b and controller 7 composition attemperating units.Electrothermal tube 6a is cartridge heater 3a heating, the water vapour that the water boiling produces flows to cartridge heater 3b by capillary brass pipe 2, and condense into water along with the reduction of temperature, when being full of water in the cartridge heater 3b, cartridge heater 3a internal pressure increases sharply, temperature raises rapidly, and when the resistance that is installed in the thermistor 5a on the cartridge heater 3a dropped to setting value, controller 7 disconnected the power supply of electrothermal tube 6a and connects the power supply of electrothermal tube 6b; Electrothermal tube 6b begins the heating for cartridge heater 3b, the water vapour that produces flows to cartridge heater 3a by capillary brass pipe 2, the resistance of thermistor 5b on being installed in cartridge heater 3b drops to when setting value, and controller 7 disconnects the power supply of electrothermal tube 6b and connects the power supply of electrothermal tube 6a.So move in circles, capillary brass pipe 2 is constantly to the mattress distribute heat.

Fig. 2 is the electrical block diagram of present embodiment, is the circuit of controller 7 in the dashed rectangle, and it comprises step-down rectifier filter regulator circuit, comparator circuit, flip-flop circuit, amplifier circuit and relay.In Fig. 2, two thermistors, comparator circuit, flip-flop circuit, amplifier circuit, relay are linked in sequence, and all are connected with the step-down rectifier filter regulator circuit, and relay is electrically connected with electrothermal tube 6a, 6b.The step-down rectifier filter regulator circuit provides constant voltage dc source for circuit; The resistance of

thermistor

5a or 5b drops to setting value, and comparator is exported a signal of telecommunication through voltage ratio, triggers through trigger, by adhesive of amplifier control relay or release, cuts off the power supply of

electrothermal tube

6a or 6b and connects the power supply of another

electrothermal tube

6b or 6a.

Fig. 3 is the circuit diagram of controller 7, form the step-down rectifier filter regulator circuit by transformer T, rectifier bridge heap UR, capacitor C 1, C2, three terminal integrated voltage stabilizer IC3, RT1, RT2 are respectively

thermistor

5a, 5b, RP is a potentiometer, and IC1 is four-operational amplifier LM324 (N1, N2), is comparator, IC2 is CC40114-2 (the input nand gate digital integrated electronic circuit of D1～D4), be trigger, transistor VT is an amplifier, and K is a relay.RT1 and RT2 are connected each with IC1 one homophase input, the IC1 inverting input is connected with RP, and each links to each other IC1 two outputs with IC2 one input, and the IC2 output links to each other with the VT base stage, and the VT colelctor electrode links to each other with K.By regulating the RP resistance value, can regulate C point voltage value, thereby regulate the voltage difference between A, B and C point at 2.RT1 is that the resistance of temperature-sensitive resistance 5a drops to when setting value, and the A point voltage is greater than the C point voltage, and IC1 output D point is a high level, then IC2 output F point is a low level, this moment, VT ended, and relay K discharges, and disconnected the power supply of electrothermal tube 6a and connected the power supply of electrothermal tube 6b.When RT2 is the resistance of temperature-sensitive resistance 5b when dropping to setting value, the B point voltage is greater than the C point voltage, and E point be a high level, and the F point is a high level, VT conducting at this moment, relay adhesive, the power supply of disconnection electrothermal tube 6b and connect the power supply of electrothermal tube 6a.

Fig. 4 is the schematic diagram of another structure in the iron case 4, in iron case 4, fix a change-over switch 10, bourdon tube 9a, 9b one end are fixed in the iron case 4, its stiff end is communicated with

cartridge heater

3a, 3b welding by two conduit 11a, 11b respectively, the free end of bourdon tube 9a, 9b is connected with the pull bar of change-over switch 10 by stay cord 12 respectively, and change-over switch 10 is electrically connected with electrothermal tube 6a, 6b.Bourdon tube 9a, 9b, conduit 11a, 11b, stay cord 12 and change-over switch 10 are formed attemperating units jointly, replace

thermistor

5a, 5b and the controller 7 of a last embodiment.The pull bar of change-over switch 10 is in the power supply of connecting electrothermal tube 6a when the next, be cartridge heater 3a heating, cylinder pressure raises, bourdon tube 9a deforms and spurs change-over switch 10, when pressure reaches setting value, the pull bar of change-over switch 10 is moved to upper, this moment, change-over switch 10 disconnected the power supply of electrothermal tube 6a, connected the power supply of electrothermal tube 6b.In like manner, when cartridge heater 3b internal pressure reached setting value, bourdon tube 9b distortion was moved to the pull bar of change-over switch 10 the next again.So move in circles, realize the alternately control of connecting and disconnecting power supply

electrothermal tube

6a, 6b.

Fig. 5 is the schematic diagram of another structure in the iron case 4, vertical fixedly

cartridge heater

3a, 3b in iron case 4, capillary brass pipe 2 two ends are communicated in middle part in cartridge heater 3a, the 3b by 8 welding of two copper connecting tubes respectively, and ribbon heater 13a, 13b are wrapped in the bottom of

cartridge heater

3a, 3b outer surface respectively.Attemperating unit is made up of the time controller 14 and temperature detect switch (TDS) 15a, the 15b that are fixed in the iron case 4, temperature detect switch (TDS) 15a, 15b are installed on the outer surface top of

cartridge heater

3a, 3b respectively, temperature detect switch (TDS) 15a connects with ribbon heater 13a, temperature detect switch (TDS) 15b connects with ribbon heater 13b, and their series connection backs are electrically connected with time controller 14.Time controller 14 is connected the power supply of ribbon heater 13a, begins the heating for cartridge heater 3a, and cylinder pressure raises, and hot water in the tube is depressed into capillary brass pipe 2, flows into cartridge heater 3b at last.In setting-up time, if the temperature in the cartridge heater 3a surpasses when setting value, temperature detect switch (TDS) 15a disconnects the power supply of ribbon heater 13a, and when waiting to reach setting-up time, time controller 14 is just connected the power supply of ribbon heater 13b; If temperature surpasses setting value as yet, then time controller 14 directly disconnects the power supply of ribbon heater 13a and connects the power supply of ribbon heater 13b, and ribbon heater 13b begins the heating for cartridge heater 3b, and hot water flows in capillary brass pipe 2 round about.In like manner, the attemperating unit formed of time controller 14 and temperature detect switch (TDS) 15b can disconnect the power supply of ribbon heater 13b and connect the power supply of ribbon heater 13a.So move in circles, the hot water that back and forth flows in the capillary brass pipe 2 is constantly to the mattress distribute heat.

Claims

1. hydro-thermal mattress, comprise mattress, be embedded in water pipe, two cartridge heaters in the mattress, it is characterized in that: water pipe and two cartridge heaters all are to be made by metal material, the water pipe two ends become an airtight tube chamber isolated with external environment with the cartridge heater close communication, water is housed in the tube chamber, in two cartridge heater bottoms one heating is installed respectively, two heatings are electrically connected with attemperating unit, and attemperating unit is controlled two heatings alternately connection, deenergization.

2. hydro-thermal mattress according to claim 1, it is characterized in that: described attemperating unit comprises step-down rectifier filter regulator circuit, two thermistors, comparator circuit, flip-flop circuit, amplifier circuit, relay, two thermistors, comparator circuit, flip-flop circuit, amplifier circuit, relay are linked in sequence, and all be connected with power supply step-down rectifier filter regulator circuit, relay is electrically connected with two heatings, and two thermistors are installed in respectively on two cartridge heaters.

3. hydro-thermal mattress according to claim 1 is characterized in that: it is vacuum that described water pipe is communicated with two cartridge heaters in the airtight tube chamber that forms.

4. hydro-thermal mattress according to claim 1 is characterized in that: the water pipe that described metal material is made is a capillary brass pipe.