JP2913561B2 - Futon drying machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a futon dryer having a function of heating a futon at a temperature suitable for bedtime.

FIG. 7 is a block diagram showing a conventional futon dryer system.

In the figure, (1) is a futon dryer body, (2) is a heater, (3) is a fan, (4) and (5) are thermistors,
The thermistor (4) is installed in the air path (6),
The thermistor (5) is installed near an opening (not shown) provided on the side wall of the air path (6). (7) is a bellows-shaped telescopic hose, (8) is a mat,
(9) is a futon.

(11) is an operation means for operating a "feather / wool" key, a "cotton" key, a "stop" key for stopping the futon dryer body (1) (not shown), etc., according to the material of the futon (9). And sends a signal based on key selection to a course setting means (12) to be described later.

(12) is a course setting means, which is provided with a "warm air" course only for drying the futon (9), an "automatic blast" course for blowing the futon (9) after the futon is dried, and the like (not shown). ing. The futon drying time when the futon (9) is dried with warm air and the blast time when the futon (9) is cooled by blowing air are set in advance. However, the futon drying time can be manually changed. The temperature of the warm air during drying of the futon is set according to the material of the futon (9). When the futon (9) is feather or wool, the temperature is set to 50 ° C, and when the futon (9) is cotton, it is set to 65 ° C. A temperature command corresponding to the set temperature is sent to the hot air control means (13). These temperatures are based on the selection of the operation key of the operation means (11) described above.

(13) is hot air control means, which controls the heating amount control means (14) to heat the heater (2) and controls the air blowing control means (15) based on a command from the course setting means (12). Then, the fan (3) is operated to generate hot air. At the same time, the heating amount control means (14) is controlled so as to have the same temperature as the temperature set by the course setting means (12).

(16) is an air temperature measuring means for measuring a voltage based on the resistance value of the thermistor (4) obtained corresponding to the hot air temperature of the air path (6). (17) is a wind temperature determining means for determining the temperature of the hot air in the air path (6) based on the voltage measured by the wind temperature measuring means (16). (18) is an upper limit temperature judging means A in which an upper limit of the hot air temperature is set, which operates when the hot air temperature based on the measurement voltage of the wind temperature measuring means (16) is higher than the upper limit temperature, The upper limit temperature detection signal is sent to (13).

(19) is an upper limit temperature measuring means for measuring a voltage corresponding to the resistance value of the thermistor (5) in the same manner as the wind temperature measuring means (16). (20) is an upper limit temperature determining means B in which the upper limit of the temperature in the futon dryer body (1) is set, and operates when the temperature based on the voltage measured by the upper limit temperature measuring means (19) is higher than the upper limit temperature. Then, an upper limit temperature detection signal is sent to the hot air control means (13).

The reason why the above-mentioned temperature exceeds the upper limit temperature is due to the backflow of hot air that occurs when the mat (8) is crushed or the hose (7) is clogged with an object.

The case where the futon (9) is warmed in the conventional futon dryer configured as described above will be described. Operating means (1
In 1), select one of the operation keys of “feather / wool” or “cotton”, and then use the course setting means (12) to select “hot air”.
When the course is selected and the futon drying time is manually set to an appropriate time, the hot air control means (13) communicates with the heating amount control means (14) based on the temperature command of the course setting means (12). The control means (15) is controlled to operate the heater (2) and the fan (3) to generate warm air. Although it depends on the room temperature, the temperature of the hot air rises with the passage of time and reaches a predetermined temperature (based on the operation selected by the operation means (11)) corresponding to the material of the futon (9). warm. At this time, the temperature of the hot air is kept constant by the feedback control of the air temperature determining means (17). When the time set in the course setting means (12) expires, the course setting means (12) sends a control stop command to the hot air control means (13), and the heater (2) and the fan (3) To stop. As a result, the futon (9) is warmed without being heated.

[Problems to be Solved by the Invention] As described above, since the conventional futon dryer does not have a function of heating the futon (9), the "hot air" course of drying the futon (9) with hot air is used. The setting had to warm the futon (9). In this case, the user adjusts the temperature of the futon (9) by setting in consideration of the futon drying time. However, if the time is incorrectly set, the futon (9) is too hot or is not warmed up. In addition, there was a problem that a comfortable bed temperature could not be obtained because the futon dryer main body (1) stopped.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a futon dryer having a function of automatically warming a futon without relying on a user's intuition.

[Means for Solving the Problems] A futon dryer according to the present invention includes a set temperature selection switch provided for each of a plurality of set temperatures (where set temperature <the predetermined temperature); Temperature management means for sending a set temperature command corresponding to the set temperature selected by the switch, room temperature detection means for detecting room temperature, and setting of a rising heating time in inverse proportion to the room temperature of the room temperature detection means. The rising heating time setting means and, when the set temperature command is input, operate the fan and heat the heater with a constant heating amount for the set rising heating time. The apparatus further includes hot air control means for controlling the amount of heating of the heater so that the value of the temperature command and the value of the detected temperature of the hot air temperature detecting means become the same value to warm the futon.

[Operation] According to the present invention, when any one of the plurality of set temperature selection switches is selected, the temperature management means sends a set temperature command corresponding to the selected set temperature to the hot air control means. At the same time, the rising heating time setting means inputs the room temperature and obtains and sets the rising heating time which is inversely proportional to the room temperature. The heating time is set short when the room temperature is high, and set long when the room temperature is low.
The hot-air control unit that has input the set temperature command operates the fan and heats the heater with a fixed heating amount for the set rising heating time to generate hot air. When the heating time is up, the heating amount of the heater is controlled so that the value of the set temperature command and the detection value of the hot air temperature detecting means detecting the temperature of the hot air become the same value, and the futon is heated. .

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG.
FIGS. 3 and 3 are block diagrams showing another embodiment, and FIGS. 4 to 6 are temperature characteristic diagrams of the present invention. The same or corresponding parts as those in the conventional example described with reference to FIG. 7 are denoted by the same reference numerals, and description thereof will be omitted.

In FIG. 1, (11a) is an operation means, and a futon (9)
In addition to having a "feather / wool" key, a "cotton" key, and a "stop" key to stop the futon dryer (1) according to the material of the material, select "hot" when you want to warm the futon (9). A key, a "normal" key and a "warm" key are provided, and a signal based on the selection of the key is transmitted to a course setting means (12a) described later.

(12a) is a course setting means having the same function as the conventional course setting means (12), and also has a rising heating time setting means and a temperature management means. When any one of the "normal" key and the "warm" key is selected, a rising heating time (hereinafter, referred to as a first process time) for heating the heater (2) at a constant heating amount is set, and A time required to control the heating amount of the heater (2) (hereinafter, referred to as a second process time) is set. The first process time is obtained by calculating a time inversely proportional to the room temperature of the room temperature determining means (23) described later, and the total time of the first and second process times is set to be constant. For example, as shown in FIG. 4, when the room temperature is low (solid line), the first process time is set long and the second process time is set short, and when the room temperature is high (dashed line), the first process time is set. Set short that second
Is set to be long. Also, "Hot" key,
The set temperature command corresponding to the "normal" key and the "warm" key is sent to the hot air control means (13a).

When the set temperature command is input, the hot air control means (13a) heats the heater (2) at a constant heating amount in the first process time, operates the fan (3), and operates the fan (3) in the second process time. The heating amount of the heater (2) is controlled so that the hot air temperature detected by the temperature determining means (17) becomes equal to the value of the set temperature command.

(21) is a thermistor installed near the air suction port (not shown) of the futon dryer body (1), and (22) is a room temperature measuring means, which is the temperature of the air sucked by the operation of the fan (3). Is the room temperature, and the voltage is measured based on the resistance value of the thermistor (21) obtained corresponding to the room temperature. (23) is a room temperature determining means for measuring the room temperature based on the measured voltage of the room temperature measuring means (22).

Next, the operation of the above-described futon dryer will be described. If, for example, the "medium" key is selected by the operating means (11a) when the room temperature is low, the course setting means (12a) inputs the room temperature from the room temperature determining means (23) and sets the first room temperature in inverse proportion to the room temperature. Is set, and counting of the time is started. At the same time, a set temperature command corresponding to the "normal" key is sent to the hot air control means (13a). The hot air control means (13a) having input the set temperature command operates the fan (3) by operating the air blowing control means (15) and operates the heater (2) by operating the heating amount control means (14). Heat at a constant heating rate. As a result, warm air is generated, the temperature rises with time, and the futon (9) is heated. When the first process time is up when the temperature of the hot air is rising, the course setting means (12a) sets the remaining second process time and starts counting. At this time, the hot air control means (13a) simultaneously controls the heating amount control means (14) so that the value of the hot air temperature input through the wind temperature determination means (17) becomes the same as the value of the set temperature command. Control. The heating amount control means (14) sequentially controls the heating amount of the heater (2) based on the control to warm the futon (9). When the second process time is up, the course setting means (12a)
A control stop command is sent to the hot air control means (13a) to stop the heater (2) and the fan (3). With this control, a temperature characteristic as shown by a solid line in FIG. 5 is obtained. When the room temperature is high, the temperature characteristic becomes short as shown by the broken line in the first process time.

Next, another embodiment will be described with reference to FIG. The room temperature can be detected by a thermistor (4) for detecting the temperature of the hot air during the drying of the futon and the high temperature caused by the backflow of the hot air. It is provided on the output side of the means (16a).

When any one of the "hot" key, the "normal" key and the "warm" key is selected by the operating means (11a), the course setting means (12b) sets a predetermined value before heating the heater (2). The fan (3) is operated for a period of time (blowing time) to blow indoor air into the air passage (6), and the temperature of the air is set as room temperature by inputting from the room temperature determining means (23). After the setting, the same control as that of the course setting means (12a) is performed.

When, for example, the "warm" key is selected by the operating means (11a) as described above, the course setting means (12b) sends an operation command to operate the fan (3) to the hot air control means (13a), Starts counting the set ventilation time. The hot air control means (13
a) operating the fan control means (15) to operate the fan (3)
To drive. When the fan (3) rotates, the room air is blown into the air path (6) through the suction port of the futon dryer body (1), so that the room temperature determining means (23) determines the temperature of the blown air. judge. The course setting means (12b) inputs and sets the air temperature as room temperature from the room temperature determination means (23). When the count time reaches a predetermined time, the course setting means (12b) warms the futon (9) by performing the same operation as in the embodiment described with reference to FIG. Becomes

In another embodiment shown in FIG. 3, a room temperature can be detected by a thermistor (5) for detecting a high temperature due to a backflow of hot air. It is provided on the output side of (19a). The course setting means (12b) has the same functions as those described with reference to FIG.
To warm up.

[Effects of the Invention] As described above, according to the present invention, the heater is heated at the rising heating time inversely proportional to the room temperature to generate hot air, and the temperature setting of the hot air is selected. Since the heating amount of the heater is controlled so as to be the same as the set temperature, the desired bed temperature can be easily provided without wasting power.

[Brief description of the drawings]

1 is a block diagram showing one embodiment of the present invention, FIGS. 2 and 3 are block diagrams showing another embodiment, FIGS. 4 to 6 are temperature characteristic diagrams of the present invention, and FIG. FIG. 1 is a block diagram showing a conventional futon dryer system. In the figure, (1) is a futon dryer body, (2) is a heater, (3) is a fan, (4), (5), and (21) are thermistors, (11a) is operating means, and (12a) and (12). 12b) is a course setting means, (13a) is a hot air control means, (14) is a heating amount control means, (15) is a blowing control means, (22) is a room temperature measuring means, and (23) is a room temperature determining means. . In the drawings, the same reference numerals indicate the same or corresponding parts.

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) D06F 58/00 D06F 58/28

Claims (1)

(57) [Claims] 1. A hot air temperature detecting means for detecting a temperature of hot air obtained by operating a heater and a fan, wherein the detected temperature of the hot air temperature detecting means is the same as a predetermined temperature during futon drying. A futon dryer controlling the amount of heating of the heater so that a set temperature selection switch provided for each of a plurality of set temperatures (where set temperature <the predetermined temperature) is provided. Temperature management means for sending a set temperature command corresponding to the selected set temperature; room temperature detection means for detecting room temperature; rising heating time for determining and setting a rising heating time of the room temperature detection means which is inversely proportional to the room temperature. When the set temperature command is input, the fan is operated, and the heater is heated at a constant heating amount for a set rising heating time, and the rising heating time elapses. Warm air control means for controlling the heating amount of the heater so that the value of the input set temperature command and the value of the detected temperature of the hot air temperature detecting means are the same value, and warming the futon. A futon dryer.