JP2014126246A - Dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dryer capable of preventing deformation and elution of an object to be dried, and a burn resulting from it.SOLUTION: A dryer includes: a drying warehouse 3 in which an object 2 to be dried is accommodated; a blower 4 for circulating air inside the drying warehouse 3; and heating means 5 for heating the circulation air by the blower 4. Temperature of the circulation air by the blower 4 is monitored by a temperature sensor 6. Control means 7 controls the heating means 5 so as to maintain detection temperature of the temperature sensor 6 to be preset temperature. The preset temperature can be changed by temperature setting means 8. When the detection temperature of the temperature sensor 6 is higher than the preset temperature by the temperature setting means 8, notification means 9 gives notification to that effect. Thereby, inputting of an object 2 to be dried whose heat resistant temperature is lower than the temperature in the warehouse can be prevented.

Description

  The present invention relates to a dryer for drying various articles.

  DESCRIPTION OF RELATED ART Conventionally, the dryer which dries a to-be-dried object using warm air is disclosed by the following patent document 1. When drying an object to be dried in this type of dryer, the object to be dried has a heat-resistant temperature, and thus temperature management in the drying cabinet is required. In other words, it is necessary to change the temperature in the drying chamber according to the object to be dried.

  Even if the inside of the drying cabinet is hot, if a material to be dried with a low heat resistance (that is, a material with a heat resistance lower than the temperature inside the chamber) is introduced, the material to be dried may be deformed or eluted. As a result, there is a risk of causing burns. Such an inconvenience may occur due to a temperature setting error (human error) in the drying chamber, or may occur in the following cases.

  That is, an object to be dried having a relatively high heat-resistant temperature (for example, a metal object to be dried) is dried at a relatively high temperature (for example, 90 ° C.), and then the set temperature is lowered. In the case where it is desired to dry a resin-made material to be dried at a relatively low temperature (for example, 60 ° C.), the material to be dried is put into the cabinet immediately after the set temperature is changed. This is because just because the set temperature is lowered, the internal temperature does not immediately drop to the set temperature, but it takes a certain amount of time to drop to the set temperature.

Japanese Examined Patent Publication No. 62-7469

  The problem to be solved by the present invention is to provide a dryer that can prevent deformation and elution of an object to be dried and burns associated therewith.

  The present invention has been made in order to solve the above problems, and the invention according to claim 1 is directed to a drying cabinet in which an object to be dried is stored, a blower for circulating air in the drying cabinet, and the blower. Heating means for heating the circulating air by means of, a temperature sensor for detecting the temperature of the circulating air, a control means for controlling the heating means to maintain the temperature detected by the temperature sensor at a set temperature, and setting the set temperature When the temperature detected by the temperature sensor is higher than the temperature set by the temperature setting unit, the drying unit is provided with a notification unit that notifies the temperature setting unit.

  According to the first aspect of the present invention, when the temperature detected by the temperature sensor is higher than the set temperature, a notification to that effect is given, so that deformation and elution of the object to be dried can be prevented. Moreover, a burn can also be prevented by preventing a to-be-dried object from deform | transforming and elution.

  Further, the invention according to claim 2 is characterized in that the notification by the notification means is performed when the temperature detected by the temperature sensor is higher than a set temperature by the temperature setting means by a predetermined temperature or more. It is a drier described.

  According to the second aspect of the present invention, it is possible to improve the usability of the dryer by providing a predetermined allowable temperature that is substantially free from problems.

  According to the present invention, it is possible to prevent deformation and elution of an object to be dried and burns associated therewith.

It is a schematic perspective view which shows one Example of the dryer of this invention. It is a schematic longitudinal cross-sectional view of the dryer of FIG.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 and FIG. 2 are schematic views showing an embodiment of the dryer 1 of the present invention, FIG. 1 is a perspective view, and FIG. 2 is a longitudinal sectional view, respectively, of the dryer 1 as viewed from the front. Show.

  The dryer 1 of the present embodiment includes a drying chamber 3 in which an object to be dried 2 is accommodated, a blower 4 that circulates air in the drying chamber 3, a heating unit 5 that heats the circulating air by the blower 4, A temperature sensor 6 for detecting the temperature of the circulating air; a control means 7 for controlling the heating means 5 to maintain the temperature detected by the temperature sensor 6 at a set temperature; a temperature setting means 8 for setting the set temperature; When the detected temperature of the sensor 6 is higher than the set temperature, a notification means 9 for notifying that is provided.

  The object to be dried 2 is not particularly limited, but is a medical instrument such as a tube or forceps. The to-be-dried object 2 is dried with the dryer 1 after wash | cleaning using a liquid, for example.

  The drying cabinet 3 is a hollow container in which the material to be dried 2 is accommodated. Although the shape in particular is not ask | required, the drying cabinet 3 is a substantially rectangular hollow box shape in a present Example. The drying cabinet 3 can be opened and closed by a door 10. In this embodiment, a double door 10 with a transparent window is provided in front of the drying cabinet 3. By opening the door 10, the object to be dried 2 can be taken in and out of the drying cabinet 3.

  A shelf 11 on which the object to be dried 2 is placed is provided in the drying cabinet 3. The shelf 11 has a structure that allows air to flow vertically. In addition, a hollow upper box 12 is provided in the upper portion of the drying chamber 3, and a tube holding portion (not shown) is provided on the bottom wall of the upper box 12. When the to-be-dried object 2 is a tube, the upper end part of the tube can be held by the holding part and can be hung in the drying chamber 3. In order to easily attach and detach the tube to and from the holding portion, the bottom wall of the upper box 12 can be pulled out to the front side using the handle 13.

  The blower 4 is provided in the lower part in the drying cabinet 3 in this embodiment. By operating the blower 4, air can be circulated in the drying cabinet 3. In this embodiment, a duct 14 is provided on one side of the drying cabinet 3 along the vertical direction. The duct 14 has a lower end connected to the discharge port 4a of the blower 4 and an upper end. It communicates with the upper box 12. The upper box 12 is provided with an appropriate opening 12a on the bottom wall, and the air from the duct 14 is jetted downward into the drying cabinet 3 through the opening 12a. Further, as described above, the bottom wall of the upper box 12 can hold the upper end of the tube. In this case, air from the duct 14 is also sent into the tube.

  An air intake box 15 connected to the air inlet 4b of the blower 4 is provided in the lower part of the drying cabinet 3. The intake box 15 is provided with an intake port 15 a for circulating air from the inside of the drying cabinet 3 and an intake port 15 b for new air from the outside of the drying cabinet 3. New air (outside air) from the outside of the drying cabinet 3 is sucked into the blower 4 from the intake box 15 via appropriate filters 16 and 17.

  An exhaust pipe 18 is provided at the upper part of the dryer 1, more specifically at the upper part of the upper box 12. Therefore, a part of the air from the duct 14 is exhausted from the exhaust cylinder 18 to the outside, and the remaining part is sent from the upper box 12 downward into the drying chamber 3.

  The heating means 5 is not particularly limited as long as the circulating air by the blower 4 can be heated. In the present embodiment, the heating means 5 includes an electric heater 19. The electric heater 19 is provided in the duct 14 in this embodiment.

  The temperature sensor 6 is provided at an appropriate location of the dryer 1 such as the heater box, the duct 14 or the exhaust pipe 18 and detects the temperature of the circulating air. The configuration of the temperature sensor 6 is not particularly limited, but is a thermocouple in this embodiment. The dryer 1 may further be provided with a humidity sensor 20 that detects the exhaust humidity from the inside of the drying cabinet 3 to the outside.

  The control means 7 is a controller 21 for controlling the means 4 and 5 based on the detection signal of the sensor 6 (, 20). Specifically, the blower 4, the electric heater 19, the temperature sensor 6, and the like are connected to the controller 21.

  When the start of operation is instructed by the user pressing the start button 22 or the like, the controller 21 operates the blower 4 to circulate air in the drying chamber 3 and operates the electric heater 19 to circulate the circulating air. Heat. At this time, the controller 21 controls the electric heater 19 so as to maintain the temperature detected by the temperature sensor 6 at the set temperature. The control of the electric heater 19 may be on / off control, or output (power) may be adjusted.

  The control means 7 is also connected to a temperature setting means 8 and a notifying means 9 described below, and controls the heating means 5 so that the temperature detected by the temperature sensor 6 becomes a temperature set by the temperature setting means 8, and also has a predetermined value. In this case, the notification means 9 notifies the user.

  The temperature setting means 8 is a temperature setting device 23 for setting the set temperature. For example, it includes a liquid crystal display 24 for temperature display and an operation button 25 for changing the temperature. The user can change the set temperature using the temperature setter 23. Then, the controller 21 controls the electric heater 19 so that the temperature detected by the temperature sensor 6 becomes the temperature set by the temperature setter 23.

  The notification means 9 is a notification device 26 that notifies the user when the temperature detected by the temperature sensor 6 is higher than the set temperature. For example, it comprises a display lamp 27 and a buzzer 28. Moreover, it is preferable that the alerting | reporting means 9 alert | reports that, if the detection temperature of the temperature sensor 6 will be below the said preset temperature from the state where it is higher than the said preset temperature. However, as will be described later, the reference temperature for notifying by the notifying means 9 is not limited to the set temperature itself but may be a temperature higher than the set temperature by a predetermined temperature.

  In the present embodiment, the controller 21, the start button 22, the temperature setting device 23, and the notification device 26 are provided in a control box 29 installed beside the drying chamber 3 as shown in FIG. 1. On the front face of the control box 29, a start button 22, a temperature setting device 23, and an alarm device 26 are arranged.

  The dryer 1 of the present embodiment circulates hot air in the drying cabinet 3 while the drying target 2 is accommodated in the drying cabinet 3, and dries the drying target 2 while replacing a part of the circulating air. Can be planned. That is, by operating the blower 4 and the electric heater 19, hot air can be circulated in the drying chamber 3, and at that time, a part of the circulated air is discharged to the outside through the exhaust pipe 18, while the intake air of the blower 4 is discharged. By taking new air into the box 15, a part of the circulating air is gradually replaced. The inside of the drying cabinet 3 can be kept at a relative humidity suitable for drying by discharging the moisture-containing air to the outside and taking in the new air to supplement the discharged amount.

  During the operation of the dryer 1, the electric heater 19 is controlled so as to maintain the temperature detected by the temperature sensor 6 at the set temperature. The set temperature is set by the temperature setter 23 in consideration of the heat-resistant temperature of the material 2 to be dried, and the controller 21 operates the dryer 1 so that the set temperature is reached. In the present embodiment, the temperature can be set in the range of 45 ° C to 90 ° C.

  For example, in the case of the metal to-be-dried object 2, the heat resistant temperature is relatively high, and the set temperature can be made relatively high (for example, 90 ° C.). On the other hand, for example, in the case of the resin to-be-dried object 2, the heat-resistant temperature is relatively low, and the set temperature may be set to a relatively low temperature (for example, 60 ° C.).

  After the set temperature is set to a relatively high temperature (for example, 90 ° C.) and the material to be dried 2 having a relatively high heat resistance temperature is dried, the set temperature is decreased (for example, the set temperature is decreased to 60 ° C.). There is a case where it is desired to dry the low material 2 to be dried. In this case, even if the set temperature is lowered by the temperature setter 23, the internal temperature does not immediately drop to the set temperature, but it takes a certain amount of time to drop to the set temperature. In the meantime, if the material to be dried 2 having a relatively low heat-resistant temperature is put into the cabinet, the material to be dried 2 may be deformed or eluted.

  Therefore, when the temperature detected by the temperature sensor 6 is higher than the set temperature, the controller 21 notifies the user by the notification means 9 during that time. For example, the notification is made by the display lamp 27 and / or the buzzer 28. Thereafter, if the internal temperature decreases and the temperature detected by the temperature sensor 6 becomes equal to or lower than the set temperature, the controller 21 notifies the informing means 9 that the material to be dried 2 can be put into the drying chamber 3 at that time. Notify the user to that effect. For example, the notification is made by the display lamp 27 and / or the buzzer 28.

  More specifically, in the case of the dryer 1 of the present embodiment, the following control is performed. That is, the controller 21 monitors the internal temperature with the temperature sensor 6 and compares the detected temperature with the set temperature. When the detected temperature of the temperature sensor 6 exceeds the set temperature, the display lamp 27 blinks. Let After that, when the internal temperature decreases and the temperature detected by the temperature sensor 6 is equal to or lower than the set temperature, the display lamp 27 is turned on and the buzzer 28 is sounded to notify the user that the object to be dried 2 can be put in. .

  However, the notification by the notification unit 9 may be performed when the temperature detected by the temperature sensor 6 is higher than the set temperature by the temperature setting unit 8 by a predetermined temperature or more. Specifically, the temperature detected by the temperature sensor 6 is “set” immediately after the set temperature is set to a relatively high temperature (for example, 90 ° C.) and immediately after the set temperature is lowered (for example, when the setting is changed to 60 ° C.). If it is equal to or higher than “temperature + predetermined temperature” (for example, 65 ° C.), the notification means 9 notifies the user to that effect. For example, the display lamp 27 is switched from lighting to blinking. At this time, notification by the buzzer 28 is not performed. Thereafter, when the internal temperature decreases and the temperature detected by the temperature sensor 6 is less than “set temperature + predetermined temperature”, the notification means 9 notifies the user that the material to be dried 2 can be introduced. For example, the display lamp 27 is switched from blinking to lighting, and a buzzer 28 is sounded to notify the user. The notification by the display lamp 27 may be made to turn on a lamp of a different color according to the situation, and the notification by the buzzer 28 may sound intermittently or continuously or change the sound depending on the situation. May be. In addition, it goes without saying that the notification to the user is not limited to the combination of the display lamp 27 and the buzzer 28 but can be changed as appropriate.

  Here, the predetermined temperature is appropriately set, and is, for example, 5 ° C. to 20 ° C. (preferably 5 ° C. and 5 ° C. in this embodiment). The predetermined temperature can be determined in consideration of a differential (operation gap) in temperature control. That is, when the controller 21 controls the electric heater 19 so as to maintain the temperature detected by the temperature sensor 6 at “set temperature ± predetermined temperature”, while the temperature is equal to or higher than “set temperature + predetermined temperature”, the notification means 9 Notify you. Further, preferably, when the inside temperature drops below the “set temperature + predetermined temperature” from that state, the user may be informed that the material to be dried 2 can be charged. By the way, this predetermined temperature (typically temperature control differential) can also be set by the user by the temperature setting unit 23, in other words, can be changed.

  As described above, according to the dryer 1 of the present embodiment, it is possible to prevent the notification unit 9 from throwing into the drying chamber 3 the to-be-dried object 2 having a heat resistant temperature lower than the internal temperature. . Thereby, while being able to prevent the to-be-dried object 2 from a deformation | transformation and elution, a burn can also be prevented with it.

  The dryer 1 of the present invention is not limited to the configuration of the above embodiment and can be changed as appropriate. For example, in the embodiment, the display lamp 27 and the buzzer 28 are used as the notification means 9, but the configuration of the notification means 9 (in other words, the method of notification to the user) is not limited to the configuration of the embodiment but can be changed as appropriate. Is possible.

  Further, in the above embodiment, the internal temperature is higher than the set temperature (or “set temperature + predetermined temperature”) and at the timing when the internal temperature is lowered to the set temperature (or “set temperature + predetermined temperature”). However, contrary to this, while the inside temperature is lower than the set temperature (or “set temperature−predetermined temperature”), the inside temperature is set temperature (or “set temperature−predetermined temperature”). You may make it alert | report at the timing which went up to.

DESCRIPTION OF SYMBOLS 1 Dryer 2 To-be-dried object 3 Dryer 4 Blower 4a Discharge port 4b Suction port 5 Heating means 6 Temperature sensor 7 Control means 8 Temperature setting means 9 Notification means 10 Door 11 Shelf 12 Upper box 12a Opening 13 Handle 14 Duct 15 Intake box 15a Circulating air inlet 15b New air inlet 16 Filter 17 Filter 18 Exhaust tube 19 Electric heater 20 Humidity sensor 21 Controller 22 Start button 23 Temperature setting device 24 Liquid crystal display 25 Operation button 26 Alarm 27 Indicator lamp 28 Buzzer 29 Control box

Claims (2)

A drying cabinet for storing the material to be dried;
A blower that circulates air in the drying chamber;
Heating means for heating the circulating air by the blower;
A temperature sensor for detecting the temperature of the circulating air;
Control means for controlling the heating means to maintain the temperature detected by the temperature sensor at a set temperature;
Temperature setting means for setting the set temperature;
When the temperature detected by the temperature sensor is higher than the temperature set by the temperature setting unit, a drier is provided, which notifies the fact. The dryer according to claim 1, wherein the notification by the notification unit is performed when a temperature detected by the temperature sensor is higher than a set temperature by the temperature setting unit by a predetermined temperature or more.

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