JPH0984999A - Gas drier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily confirm the kind of gas inputted from a gas kind input means from an outside in a gas drier for burning the gas and supplying hot blast. SOLUTION: The hot blast heated by a burner 7 is supplied into a rotary drum for drying clothes by a fan and the burning amount of the burner 7 is controlled in multiple stages by a proportional control valve 8. The rotary drum or the fan are rotationally driven by a motor 2 and an operation course and remaining operation time, etc., are displayed by a display means 17. A control means 19 inputs the output of an input setting means 13 for setting the operation course or the like and the gas kind input means 14 for setting the kind of the gas, controls the proportional control valve 8 and the motor 2 and displays input data by the gas kind input means 14 at the display means 17 corresponding to the specified operation of the input setting means 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas dryer for burning gas to supply hot air.

[0002]

2. Description of the Related Art Conventionally, in a gas dryer, the control means inputs the kind of gas to be used in order to appropriately control the combustion amount of gas. When checking the set gas type, the printed circuit board on which the input was mounted was taken out from the dryer body and checked.

Further, when the repair inspector changes the type of gas, it is necessary to adjust the proportional control valve with respect to the secondary gas pressure in order to control the gas combustion amount. Was entrusted to.

Further, only one adjustment value corresponding to the secondary gas pressure of the proportional control valve is stored regardless of the type of gas.

[0005]

In such a conventional gas dryer, when the correct type of gas is recognized by the burner to be used, normal combustion operation is performed by the control means for controlling the gas combustion amount. Be seen. In the unlikely event that the type of gas input to the control means and the burner are not matched, incorrect combustion control is performed, so the amount of gas burned is too small to dry, or the drying time becomes long. On the contrary, there is a problem that the temperature of clothes and the temperature of the dryer main body increase due to the large amount of gas burned. In order to confirm the type of gas to be input in order to properly correspond the two, the printed circuit board had to be taken out from the dryer body, which was troublesome.

In addition, when changing the type of gas, the proportional control valve must be adjusted for the secondary gas pressure to carry out the drying operation with appropriate combustion, but this may be forgotten. However, if the proportional control valve is not properly adjusted, there is a problem that the performance is deteriorated as described above.

In adjusting the proportional control valve, the gas 2
Since only one adjustment value according to the next pressure is stored, when changing the gas type, the adjustment operation can be started from a value apart from the adjustment value specific to the gas type, so it takes time to adjust. It was hanging.

SUMMARY OF THE INVENTION The first object of the present invention is to solve the above problems, and it is a first object of the present invention to make it possible to easily confirm the type of gas input from the gas type input means from outside.

A second object is to prevent unadjustment of the proportional control valve when changing the type of gas.

A third object is to change the stored adjustment value of the proportional control valve according to the type of gas and shorten the time required for adjusting the proportional control valve.

[0011]

In order to achieve the first object, the present invention provides a rotary drum for drying clothes, a blowing means for supplying hot air heated by a burner into the rotary drum, and the burner. A proportional control valve for controlling the combustion amount of the multi-stage, a motor for rotationally driving the rotary drum or the blower means, an input setting means for setting an operating course, and a gas type input means for setting the type of gas. , A driving means, a display means for displaying the remaining operation time, and the like, and a control means for controlling the proportional control valve and the motor by using the outputs of the input setting means and the gas type input means as input, and the control means, The first problem solving means is that the input data by the gas type input means is displayed on the display means according to a specific operation of the input setting means.

Further, in order to achieve the second object, the control means is such that the type of gas input by the gas type input means and the type of gas at the previous operation stored in the storage means are different, If the proportional control valve is not adjusted with respect to the secondary gas pressure after that, the second means for solving the problem is to notify by the display means.

In order to achieve the third object, the control means stores the adjustment value of the proportional control valve corresponding to the type of gas in the storage means, and according to a specific operation of the input setting means, A third problem solving means is that when the proportional control valve is adjusted with respect to the secondary gas pressure, the adjustment operation is started from the stored adjustment value corresponding to the current type of gas.

[0014]

According to the first means for solving the above problems, the present invention provides:
Even if the printed circuit board is still incorporated in the dryer main body, the input from the gas species input means can be externally displayed by the display means, and the normal combustion operation can be reliably performed.

Further, according to the second problem solving means, when the type of gas is changed, it can be informed to adjust the proportional control valve with respect to the secondary gas pressure, and it is possible to prevent forgetting the adjustment. .

Further, according to the third problem solving means, the adjustment value of the proportional control valve with respect to the secondary gas pressure is stored depending on the type of gas, so that the time required for adjusting the proportional control valve can be shortened and the type of gas can be reduced. Even if the adjustment of the proportional control valve is forgotten when is changed, the operation can be performed with the adjustment value suitable for the gas type, so that unsafe operation can be prevented.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 2, the dryer main body 1 is provided with a motor 2 serving as a drive source at the bottom thereof. The motor 2 and the fan 3 provided on the back side of the dryer main body 1 and the fan 3 are provided. Belts 5 and 6 are respectively stretched between the rotary drum 4 provided in the front and the fan 3 and the rotary drum 4 are rotated by driving the motor 2. Also,
A burner 7, which serves as a heat source, is arranged in the lower front portion of the dryer main body 1, and a proportional control valve 8 is provided to control the amount of combustion.

A large number of hot air holes 10 are provided in the flat surface of the drum front plate 9 that rotatably supports the rotary drum 4 on the front surface, and the hot air generated by the combustion of the burner 7 is guided to the hot air holes 10 by the combustion cylinder 11, and the rotary drum 9 is rotated. Material to be dried (clothes)
Is dried by heating. The hot air in the rotary drum 4 is sent to the exhaust guide 12 by the fan 3, and the dryer main body 1
Discharge to outside.

The electrode 13 is arranged at a position in contact with the clothes in the rotary drum 4 during operation. The electrode 13 is composed of a pair of conductive members and an insulating member between them (not shown), and detects the dry state of the clothes in the rotary drum 4 by detecting the resistance value between the conductive members.

Next, as shown in FIG. 1, the dryness detecting means 11 detects the dry state of the clothes in the rotary drum 4 by the electrode 10 and the exhaust temperature detecting means 12 for detecting the exhaust temperature. The input setting means 13 is used to input and set the driving course and the like. As shown in FIG. 3, the soft change switch 13a, the timer switch 13b, and the course switch 13 are provided.
c, the start temporary stop switch 13d.
The gas type input means 14 outputs gas type data.

The driving means 15 controls the motor 2, the burner 7, the proportional control valve 8, the power switch 16 and the like. The display means 17 includes a filter clogging notification lamp 17a for displaying the set contents, and a soft keep display lamp 17
b, remaining time display lamp 17c, course display lamp 17
It is composed of d to 17 g, a combustion display lamp 17h, and the like. The storage means 18 holds information and normally uses a non-volatile memory or the like.

The control means 19 causes the display means 17 to display the contents based on the switch input data from the input setting means 13. Further, the control means 19 controls the motor 2, the burner 7, the proportional control valve 8, the power switch 16 and the like via the drive means 15 based on the drying data by the drying detection means 11 and the temperature data by the exhaust temperature ticket means 12. . At that time, the control means 19 adjusts the combustion amount of the gas by changing the output to the proportional control valve 8 according to the gas type data from the gas type input means 14.

Further, the control means 19 has the input setting means 13
The input data from the gas type input means 14 is displayed on the display means 17 in accordance with the specific operation of.

The adjustment of the proportional valve control valve 8 for the secondary gas pressure and the detection of the gas type data by the gas type input means 14 will be described below.

First, the adjustment of the proportional control valve 8 corresponding to the secondary gas pressure in the factory inspection and repair inspection will be described. When a pulse corresponding to a certain value is output to the proportional control valve 8, a D / A converted current of the pulse flows to the proportional control valve 8 and the gas combustion amount becomes a certain amount. In order to control the gas combustion amount in multiple stages, the output pulse to the proportional control valve 8 is changed, but the secondary gas pressure of 2 which is the reference of the output is changed.
The adjustment of the proportional control valve 8 is to determine the output value of the proportional control valve 8 for a fixed amount.

The output pulse to the proportional control valve 8 is adjusted in the increasing and decreasing directions of the current so that the gas combustion amount becomes a certain amount, the adjusting point 1 and the adjusting point 2, so as to meet the adjusting point. The values of the output pulses to the proportional control valve 8 at that time are stored as the adjustment value 1 and the adjustment value 2, respectively.

Next, a method of detecting the input from the gas type input means 14 will be described. Specifically, the gas type input means 14 uses a resistor, a connector, or the like to select the type of gas (hereinafter,
The output voltage (input voltage of the control means 19) is switched according to the gas type.

When the power switch 16 is turned on and the reset is released, the output voltage of the gas species input means 14 is read many times to determine the gas species. The adjustment value of the proportional control valve 8 varies depending on the determined gas type. Therefore, when the gas type and the burner 7 do not correspond to each other, the combustion amount of gas may actually be larger or smaller than the specification.

The operation of the above configuration will be described with reference to FIGS. 4 and 5. Power switch 1 in step 20
If both the timer switch 13b and the course switch 13c are turned on when 6 is turned on, step 2
In 1, the operation in the operation process for repair inspection is started. If not, the operation in the normal driving process is performed in step 22.

In this repairing / inspecting operation process, there are some modes having different operation contents. When the soft changeover switch 13a is turned on in step 23, this mode is changed in step 24. Step 2
If it is not in the mode for displaying the gas type in 5, the operation in another mode is performed in step 26.

If the gas mode is displayed in step 25, the standard lamp 17d is lit for 3 seconds in step 27 to indicate that mode, and the remaining time display lamp 17c determines the above. Display the gas type.
In FIG. 5A, the gas type of the remaining time display lamp 17c is 1
It is an example of a display when it is 3A. FIG. 5B is an example of the display when the gas type of the remaining time display lamp 17c is LPG.

Next, in step 28, the power switch 16
Is automatically turned off, and the operation in the operation process for repair inspection is completed. This series of operations is actually used to confirm whether or not the burner 7 corresponds to the gas type recognized by the control means 19 in the factory inspection and repair inspection.

Next, a second embodiment of the present invention will be described. In the control means 19 in FIG. 1, the type of gas input by the gas type input means 14 and the type of gas at the previous operation stored in the storage means 18 are different,
If the proportional control valve 8 is not adjusted with respect to the secondary gas pressure thereafter, the display means 17 gives a notification. The other structure is the same as that of the first embodiment.

The operation of the above configuration will be described with reference to FIGS. 6 and 7. After the reset is released in step 30, the gas type to be used is determined by the gas type input means 14 in step 31. Unlike the previous gas type stored in the storage means 18 in step 32, the current gas type is adjusted in step 33 by adjusting the proportional control valve 8 with respect to the secondary gas pressure that must be executed when the gas type is changed. If it has not been done, in step 34, it is promptly displayed as shown in FIG. 7 to prompt the adjustment of the proportional control valve 8.

If the gas type does not change or if the proportional control valve 8 is adjusted after the gas type is changed, the current gas type is stored in the storage means 18 in step 35, and the operation is started in step 36. This operation is always performed when the control means 19 is reset, but it is effective when the repair inspector changes the gas type.

Next, a third embodiment of the present invention will be described. The control means 19 in FIG. 1 stores the adjustment value of the proportional control valve 8 corresponding to the type of gas in the storage means 18,
When the proportional control valve 8 is adjusted with respect to the secondary gas pressure according to a specific operation of the input setting means 13, the adjustment operation is started from the stored adjustment value corresponding to the current gas type. There is. The other structure is the same as that of the first embodiment.

The operation of the above configuration will be described with reference to FIG. When the power switch 16 is turned on in step 37, the timer switch 13b and the course switch 1
If both 3c are turned on, the operation in the operation process for repair inspection is started in step 38. Otherwise,
In step 39, the operation in the normal driving process is performed. As described above, there are several modes in the operation process for repair inspection, so when the fluffy changeover switch 13a is turned on in step 40, this mode is changed in step 41.

If it is not in the mode for adjusting the proportional control valve 8 for the secondary gas pressure in step 42, the operation in another mode is performed in step 43. Step 42
Then, if it is the mode for adjusting the proportional control valve 8, the adjustment of the proportional control valve 8 is started.

In step 44, ignition is performed to perform combustion at the stored adjustment value of the adjustment point 1 corresponding to the current gas type. In step 45, the output to the proportional control valve 8 is increased or decreased so that the gas combustion amount reaches the adjustment point 1, and a new adjustment value 1 is determined. Start pause switch 13 at step 46
When d is turned on, the adjustment at the adjustment point 1 is completed, and the adjustment at the adjustment point 2 is started. If the start suspension switch 13d is not turned on and 10 minutes or more have passed in step 47, the process is finished.

In step 48, combustion is performed at the stored adjustment value of the adjustment point 2 corresponding to the current gas type. In step 49, the output to the proportional control valve 8 is increased / decreased and a new adjustment value 2 is determined so that the gas combustion amount reaches the adjustment point 2. When the start temporary stop switch 13d is turned on in step 50, the adjustment value 1 and the adjustment value 2 are stored as the values of the current gas type in step 51, and the process ends. If the start suspension switch 13d is not turned on and 10 minutes have passed in step 52, the process ends.

Therefore, no matter how many times the gas type is changed, the adjustment value 1 and the adjustment value 2 previously adjusted by the gas type are adjusted.
Can be used to perform the combustion operation, and the adjustment of the proportional control valve 8 can be started.

[0043]

As described above, according to the present invention, the rotary drum for drying clothes, the blowing means for supplying the hot air heated by the burner into the rotary drum, and the proportional control for controlling the combustion amount of the burner in multiple stages A control valve, a motor that drives the rotary drum or the blower to rotate, an input setting unit that sets an operating course, a gas type input unit that sets the type of gas, an operating course, and a remaining operating time are displayed. Display means and a control means for controlling the proportional control valve and the motor with the outputs of the input setting means and the gas species input means as inputs, and the control means responds to a specific operation of the input setting means. Since the input data from the gas type input means is displayed on the display means, the type of gas can be confirmed from the outside and the work efficiency in factory inspection and repair inspection is improved. It is possible. Further, since the type of gas and the burner are sure to correspond to each other, it is possible to operate with the gas combustion amount according to the specifications, and the performance does not deteriorate.

Further, the control means is different in the kind of gas inputted by the gas kind input means from the kind of gas in the previous operation stored in the storage means, and thereafter, the proportional control valve for the gas secondary pressure is changed. If the adjustment has not been made, the notification is made by the display means. Therefore, when the type of gas is changed, it is possible to notify the adjustment of the proportional control valve with respect to the secondary gas pressure. Can be prevented.

Further, the control means stores the adjustment value of the proportional control valve corresponding to the type of gas in the storage means, and the proportional control valve with respect to the gas secondary pressure is stored in accordance with a specific operation of the input setting means. When adjusting, the adjustment operation is started from the stored adjustment value corresponding to the current gas type, so adjustment can be performed from a value relatively close to the adjustment value specific to that gas type. Time can be shortened. Further, even if the user forgets to adjust the proportional control valve, the operation can be performed with an adjustment value that is relatively suitable for the type of gas, so unsafe operation does not occur.

[Brief description of drawings]

FIG. 1 is a block diagram of a gas dryer according to a first embodiment of the present invention.

FIG. 2 is a sectional view of the gas dryer.

FIG. 3 is an enlarged front view of an operation display section of the gas dryer.

FIG. 4 is an operation flowchart of the gas dryer.

FIG. 5 (a) is an enlarged front view of the display means when the gas type of the gas dryer is 13A. (B) An enlarged front view of the display means when the gas type of the gas dryer is LPG.

FIG. 6 is an operation flowchart of the gas dryer according to the second embodiment of the present invention.

FIG. 7 is an enlarged front view of the display means when the secondary pressure of the gas dryer is not adjusted.

FIG. 8 is an operation flowchart of the gas dryer according to the third embodiment of the present invention.

[Explanation of symbols]

 2 motor 3 fan (blowing means) 4 rotating drum 7 burner 8 proportional control valve 13 input setting means 14 gas type input means 17 display means 19 control means

Claims (3)

[Claims] 1. A rotary drum for drying clothes, a blowing means for supplying hot air heated by a burner into the rotary drum, a proportional control valve for controlling the burner combustion amount in multiple stages, the rotary drum or A motor that rotationally drives the blower unit, an input setting unit that sets a driving course, a gas type input unit that sets a gas type, a display unit that displays a driving course, a remaining operating time, and the like, and the input setting. Means and a control means for controlling the motor with the output of the gas species input means as an input,
The gas dryer, wherein the control means displays the input data from the gas type input means on the display means in accordance with a specific operation of the input setting means. 2. A rotary drum for drying clothes, a blowing means for supplying hot air heated by a burner into the rotary drum, a proportional control valve for controlling the burner combustion amount in multiple stages, the rotary drum or A motor that rotationally drives the blower unit, an input setting unit that sets a driving course, a gas type input unit that sets a gas type, a display unit that displays a driving course, a remaining operating time, and the like, and a gas type And a control means for controlling the proportional control valve and the motor using the outputs of the input setting means and the gas type input means as inputs, and the control means is input by the gas type input means. If the type of gas and the type of gas in the previous operation stored in the storage means are different and the proportional control valve for the secondary gas pressure is not adjusted thereafter, the table is displayed. A gas dryer designed to notify by means of an indicator. 3. A rotary drum for drying clothes, a blower for supplying hot air heated by a burner into the rotary drum, a proportional control valve for controlling the burner combustion amount in multiple stages, the rotary drum or A motor that rotationally drives the blower unit, an input setting unit that sets a driving course and the like, a gas type input unit that sets the type of gas, a display unit that displays the driving course and the remaining operating time, and a gas secondary Storage means for storing the adjustment value of the proportional control valve according to the pressure,
The proportional control valve receives the output of the input setting means and the gas type input means as input, and control means for controlling the motor, wherein the control means stores the adjustment value of the proportional control valve corresponding to the type of gas. When adjusting the proportional control valve with respect to the secondary gas pressure in accordance with a specific operation of the input setting means, the adjusting operation is started from the stored adjustment value corresponding to the present kind of gas. Made gas dryer.