CN2263924Y

CN2263924Y - Water bed temperature and air pressure control device

Info

Publication number: CN2263924Y
Application number: CN 95219628
Authority: CN
Inventors: 夏育君
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-08-17
Filing date: 1995-08-17
Publication date: 1997-10-08
Anticipated expiration: 2005-08-17

Abstract

A temperature and air pressure control device for a water bed is mainly composed of a temperature control device and an air pressure control device. The temperature control device can maintain the temperature inside the quilt at a constant and most comfortable personal setting value when the outside temperature changes and affects the heat dissipation rate of the quilt. The air pressure control device can automatically adjust the hardness of the bed to the setting value that the individual feels most comfortable.

Description

The temperature of water bed and Pneumatic controller

The utility model relates to a kind of water bed, and is especially relevant with the temperature and the Pneumatic controller of water bed.

The water bed that general people commonly use, excessive because of fluctuating, water consumption is many, so heat, temperature-fall period is slower, when temperature hangs down the need heating, its heater only can be controlled a body and be in uniform temperature, can't make suitable adjustment according to the variation of outside air temperature, to keep the temperature that is fit to human body.

The purpose of this utility model is to provide a kind of temperature and Pneumatic controller of water bed, and it can adjust the temperature control purpose that devices such as circuit, a temperature computing, control circuit reach the personal set temperature value of keeping optimum human body in the quilt by a temperature sensing circuit, a temperature.Can adjust devices such as circuit, an air pressure computing, control circuit again by a pressure-sensing circuit, a pressure and reach and adjust a body internal gas pressure, make it to keep the purpose of the soft or hard degree that optimum couches.

The purpose of this utility model realizes like this: wherein, temperature control is estimated air outlet temperature respectively by temperature element, and compare mutually, after its ratio and the setting value of adjusting circuit calculated via microprocessor, draw a target temperature, when target temperature is below or above a body temperature and spends, by or heater.In addition, gas pressure regulator is then by the gasbag pressure in the pressure sensing element detecting bed body, and with this pressure signal via amplifying and the analog/digital conversion, to form a force value, by the calculating of microprocessor, when making this force value be greater than or less than setting value, can drive pulsometer and fill, exit.

After adopting such device, water bed is automatically adjusted with the temperature of keeping optimum people sleep and the soft or hard degree that the most suitable human body couches, be reached comfortable, effect easily.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the generalized section of water bed.

Fig. 2 is a temperature-control circuit calcspar of the present utility model.

Fig. 3 is a temperature detecting arrangements of components schematic diagram of the present utility model.

Fig. 4 is another temperature detecting arrangements of components schematic diagram of the utility model.

Fig. 5 is temperature-control circuit figure of the present utility model.

Fig. 6 is an air pressure control circuit calcspar of the present utility model.

Fig. 7 is air pressure control circuit figure of the present utility model.

See also Fig. 1, this water bed is respectively equipped with in bed body 1 inside and can supplies inflatable air bag 12 for the space 13 of water storage and appropriate intervals, makes whole bed body 1 be easy to temperature control and can adjust optimal soft durometer.

See also Fig. 2, temperature-control circuit of the present utility model, mainly be by temperature element 201,202 detect temperature and bed body temperature degree respectively, and be revealed in display 22, on 23, and after adding the relevant mutual comparison of parameter via comparison circuit 20, export a ratio to microprocessor 21, via the relative temperature of this ratio of its computing, and adjust circuit 24 via setting, adjusted value is deposited in the buffer of microprocessor 21, make temperature through microprocessor 21, the mutual computing of bed body temperature degree and adjusted value, a target temperature, and this temperature is revealed in display 25, make when a body temperature degree 23 during greater than target temperature 25, microprocessor 21 can drive relay 26 and discharge, make heater 27 stop heating, and when bed body temperature degree 23 is lower than target temperature 25, drive relay 26 ranks to close, make heater 27 heating, to keep the bed body in the temperature that is fit to.In addition, the required operating voltage of control circuit can be supplied by rectification circuit 211 and mu balanced circuit 212, and microprocessor 21 can provide its action clock pulse by clock pulse generator 213, and by a reset circuit 214 when the electric power starting, produce the signal of a removing state and data, make control circuit when start, be armed state.

See also Fig. 3, temperature control of the present utility model mainly is to detect temperature and bed body temperature degree respectively with temperature element 201,202, make when human body couches between bed surface 11 and the cotton-wadded quilt 2 that covered, can be according to the thickness and the material of cotton-wadded quilt 2, extrapolate a cotton-wadded quilt rate of heat dissipation with respect to the temperature difference, and extrapolate a bed surface 11 pyroconductivities by the temperature difference of bed body temperature degree and personal like's temperature, and suitably adjust the receptible personal like's temperature 3 of human body, according to this, target temperature can be drawn by following formula to calculating:

F (personal like's temperature-temperature) * cotton-wadded quilt rate of heat dissipation=F (target temperature-personal like's temperature) * bed surface pyroconductivity

The target temperature value of gained can be powered, and set microprocessor gives computing in the road, keying by suitable control heater, personal like's temperature 3 can be safeguarded in temperature constant state in the space that bed surface 11 and cotton-wadded quilt 2 are comprised, and improves fully because of temperature Change, causes the instability of the warming effect of cotton-wadded quilt.

See also Fig. 4, this structure of controlling temperature also can be used in water bed that does not have airbag apparatus or the electrical blanket of commonly using, and because electrical blanket 4 itself has had the function of heating, the ratio of available temperature, blanket body temperature degree, personal like's temperature 3 and blanket body rate of heat dissipation, try to achieve the suitable target heat value of blanket body 4, can reach the temperature control purpose of constant temperature equally.

See also Fig. 5, by finding out in graphic, the temperature element SENSOR1 of temperature-control circuit, the 2nd, be connected in the input of an operational amplifier U1, after its signal that records comparison via U1, transport to little processing U2, adjust circuit then respectively by SVR1,2 are connected in hobby temperature value and the cotton-wadded quilt rate of heat dissipation of another operational amplifier U3 for default individual, and transport to microprocessor U2 equally, calculated by U2, demand according to design can go out target temperature by following formula to calculating: F (SVR1-SENOR1) * SVR2=F (constant of target temperature-SVR1) * (SENSOR2-SVR1)

When target temperature is greater than or less than a body temperature when spending, microprocessor U2 can drive relay R ELAY and open or discharge, with the heating of control heater HT1 or stop.

See also Fig. 6,7, air pressure control circuit of the present utility model, mainly be to be provided with a pressure to survey the pressure of element 301 with detecting bed body, this element is a sensing principle of utilizing strain gauge (STRAIN GAGE), several strain gauge resistive elements are attached on the metallic membrane, and diaphragm is installed in a pedestal, its middle body can bear pressure to be measured, and the resistance of strain gauge changes because of flexible when pressurized, and be that small electric current changes by circuit conversion, give suitable amplification via amplifying circuit 30 again, for analogy, digital converting 31 is converted to microprocessor 32 acceptable digital dates with this voltage signal, computing through this microprocessor 32, form a force value, and be revealed in display 33, one adjusts circuit 34 then can be for the soft durometer of default bed body air pressure, microprocessor 32 can be compared this preset value and force value mutually, and in force value greater than when setting value, export a signal, drive relay 35, make 371 venting of pressure release magnetic valve, otherwise when force value less than when setting value, then drive relay 35, make pump 36 inflations, to keep the bed body in suitable atmospheric pressure state.In addition, microprocessor 32 also can be via the startup of a switch 372, make pump 36 constitute the pulse pressurization, reach the effect of the moving massage of microwave, simultaneously, the The whole control circuit can be supplied with its operating voltage by rectification, mu balanced circuit 321,322, and is removed as the action sequence pulse wave of microprocessor 32 and the data of unlatching by sequence circuit 323 and reset circuit 324.

Please consult Fig. 7 again, pressure sensing element PRESSURE SENSOR is after recording a body pressure, via U1 the Weak current that it predicts is amplified, and be digital date with this analogy voltage transitions through U2, to transport to microprocessor U3, SVR3, SVR4 then can adjust default soft, the hardness of bed body respectively, and according to preferable adjusting range, SVR3 is about 0-0.3KG/cm ², XVR4 then is 0.2-0.5KG/cm ²

When preset value was greater than or less than a bed body force value, microprocessor U2 can drive relay R ELAY and open, with control pump M inflation or drive the pressure release electricity and grow valve 371 venting.

Claims

1. A temperature and air pressure control device for a water bed, characterized in that: the device is provided with a temperature sensing circuit, the input end of a comparator is connected and two temperature sensing elements are arranged, and the two temperature sensing elements detect the air temperature and the temperature of the bed respectively. Body temperature, the comparators compare each other, output a ratio, for the microprocessor to calculate and display on the display;

A temperature adjustment circuit is connected to the input end of a comparator and provided with two variable resistors, and is input to the microprocessor _U2 ;

A temperature calculation and control circuit, using a microprocessor to receive the pulse wave timing signal, the microprocessor is connected with two comparators, and the output terminal is connected with a relay driven and amplified by a triode;

A pressure sensing circuit is connected to a pressure sensing element at the input end of an operational amplifier to detect the pressure of the bed, and the microprocessor is connected with a pressure display;

A pressure adjustment circuit is connected to the input end of a comparator and provided with two variable resistors;

An air pressure calculation and control circuit is connected to the output end of the pressure adjustment circuit through a microprocessor, the output end of the microprocessor is connected with a relay amplified by a triode, the relay controls an air pump, and there are analog and digital conversion circuits on the microprocessor [ 31], calculate the ratio of the analog, digital conversion circuit and adjustment circuit, and obtain a pressure value, so that when the pressure value is greater than the adjustment value, output a cut-off signal signal to make the output circuit control the pressure relief solenoid valve [371] to deflate , and when the pressure value is less than the adjustment value, an opening signal is output to make the output circuit control the pump [36] to inflate.

2. The temperature and air pressure control device of the water bed according to claim 1, characterized in that the pump [36] driven by the air pressure control circuit is a vibrating air pump, and the microprocessor [32] is also connected with a solenoid valve [ 37].