JPH01305907A - Temperature controlled water bed - Google Patents

Abstract

PURPOSE:To control a temperature of a water bed through the year properly having no relation to room temperature by housing a heat pump refrigerating cycle unit inside the water bed main body and cooling/heating the water inside a water mat with primary heat exchanger. CONSTITUTION:Inside a water-mat 1 which is placed at an upper part of a bed 2 is filled with water. A heat pump refrigerating cycle unit housed in bed 2 is comprising of a compressor 7, a four-way valve 8, a primary heat exchanger 9, a decompression device 10 and a secondary heat exchanger 11, each of them being connected by pipe lines and are filled with a refrigerant gas. Pipe lines 14 connect a water inflow port and a water discharge port of the water bed with a water heat exchanger 16 and in between the pipeline a pump 15 is provided to circulate the water, and a ventilating hole for cooling (or for endothermic) a secondary heat exchanger 11 is provided at the side of bed 2.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a waterbed.

Conventional technology The conventional technology will be explained with reference to FIG.

FIG. 1 is a perspective view of the water bed, which is composed of a quarter mat 1 containing water in the upper part and a bed main body 2.

Problems to be Solved by the Invention In general, waterbeds are widely used in the United States and other countries due to their unique cushioning properties, but their use in Japan has been minimal. The main reason for this is the magnitude of room temperature changes throughout the year. In the United States, central cooling and heating are widely used, and the room temperature is kept at a comfortable temperature throughout the year, so the water temperature of the water mat is also an appropriate temperature, close to room temperature.

On the other hand, in Japan, where individual air conditioning is the norm, air conditioning in bedrooms and other areas is only operated at night when it is necessary, and even if the room temperature changes, the water temperature in the water mat, which has a large heat capacity, does not easily keep up with the temperature, making it cold in the winter and cold in the summer. It has the disadvantage of being warm, which is a cause of inhibiting demand.

The present invention aims to provide a comfortable water bed with adjustable water temperature. ' Means for Solving the Problems In order to solve the above problems, the present invention provides a compressor, a four-way valve, a
The next heat exchanger, the pressure reduction device, and the second heat exchanger are connected in a ring to form a CC heat posi 1 refrigeration cycle, and this heat pump refrigeration cycle is housed inside the bed body, and the water in the water mat is It is cooled or heated by a side heat exchanger.

Function: The above configuration makes it possible to adjust the water temperature within the water mat, providing comfortable sleep throughout the year.

EXAMPLE Hereinafter, the structure of an example of the present invention will be described with reference to FIGS. 1 and 2.

FIG. 1 is a perspective view of the water bed, and numeral 1 is a water mat placed on top, and the inside is filled with water.

2 is the bed body.

FIG. 2 is a refrigeration cycle diagram of a heat pump type refrigeration cycle unit housed within the bed main body, and the inside thereof is filled with refrigerant gas.

12 and 13 are a blower fan and a blower motor of the secondary heat exchanger 11. 14 is a pipe connecting the water flow port 4 of the water mat 1, the water outlet 3, and the water heat exchanger 16, and a pump 15 for circulating water is provided in the middle of the pipe. Ventilation ports 5 and 6 are provided on the side surface of the bed body 2 for cooling (or absorbing heat) the secondary heat exchanger 11.

The operation of the above configuration will be explained with reference to FIGS. 3, 4, and 5.

The buttock diagram shows a frozen psychedelic psychedelic food according to an embodiment of the present invention.

Relay A18 for controlling the operation, Relay B19 for controlling the operation of the four-way valve 8 for switching between cooling and heating, and power switch 1
It consists of a pump 15 that is always operated when is ON.

FIG. 4 is a block diagram showing the outline of the control, and shows the set temperature (T) determined by the user and the water temperature (T) in the water mat 1.
1) The temperature of the detection section is compared and determined by the control section, and an output signal is output to the output section (relay A18, relay B19).

issue a number.

FIG. 5 shows the operation of relay A18 and VNO B19 depending on the difference between set temperature (Tl and water temperature (1)).

Now, when the power switch 17 is turned on, the set temperature (η) and the water temperature (t) of the water mat 1 are read, and t<T-1
If so, relay A18 and relay B19 are turned on, and compression ps7, feed mode 13, and four-way valve 8 are started. (Heating mode) When the compressor 7 starts, the high-temperature refrigerant gas passes through the four-way valve 8 and enters the primary heat exchanger 9 (indicated by → in the figure).
The heat is radiated, liquefied, and passed through the pressure reducing device 10 to the secondary heat exchanger 1.
1 absorbs heat, vaporizes, and is sucked into the compressor 7 again through the four-way valve 8. On the other hand, the water in the water heat exchanger 16 is heated, the heated water flows into the water mat 1 by the pump 15, and the water temperature in the water mat 1 rises.

If t > T + 1, only relay A18 is ON
Then, the compressor 7 and the blower motor 13 are started. (
Cooling mode) When the compressor 7 starts, the high-temperature refrigerant gas passes through the four-way valve 8 and radiates heat in the secondary heat exchanger 11 (indicated by R in the diagram), liquefies it, and returns to the primary side via the °C pressure reducing device 10. The heat exchanger 9 absorbs heat from the water, vaporizes it, and passes it through the four-way valve 8 again to the compressor 7.
is inhaled. The water in the water heat exchanger 16 is cooled and circulated within the water mat 1 via the piping 14 by the pump 15, and the water temperature in the water mat gradually decreases.

When T-1<t<Tl1, the compressor 7 is not operated.

With the above configuration, it is possible to appropriately control the water temperature inside the water mat, and the temperature of the water bed can be controlled at an appropriate temperature throughout the year without being affected by room temperature, making it possible to provide a comfortable sleep. .

Effects of the Invention The present invention configures a heat pump type refrigeration cycle unit by connecting a compressor, a four-way valve, a primary side heat exchanger, a pressure reducing device, and a secondary side heat exchanger in an annular manner, and connects the unit to a water bed main body. By cooling and warming the water in the water mat with the primary heat exchanger, the water temperature in the water mat is not affected by room temperature and can be adjusted to a comfortable temperature throughout the year. It can provide you with a good night's sleep.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a water ped showing an embodiment of the present invention, Fig. 2 is a diagram of the heat pump type refrigeration cycle, Fig. 3 is a control circuit diagram of the refrigeration cycle unit, and Fig. 4 is an outline of the control. The block diagram shown in FIG. 5 is a diagram showing late entry of relays A and B due to the difference between the set temperature and the water temperature of the water ped. 1...Water mat, 7...Compressor, 9...Primary side heat exchanger, 15...Pump, 16... Water heat exchanger. Name of agent: Patent attorney Toshio Nakao and 1 other person1-
--Riotaf9)? -1-He'-, FA Iki Fig. 1/ Fig. 3I21 Ht & Fig. 4 Fig. 5 (recorded) SoL -kB: OFFνν-A
-B: ON

Claims (1)

[Claims] A compressor, a four-way valve, a primary heat exchanger, a pressure reducer, and a secondary heat exchanger are connected in a ring to form a heat pump refrigeration cycle unit, and the heat pump refrigeration cycle unit is housed within the waterbed body. A temperature-controlled water bed that cools and heats the water inside the water mat using a primary heat exchanger.