JPH085245A - Drying machine, dehumidifying device of drying machine and cooler - Google Patents

Abstract

PURPOSE:To prevent air from being fed into or fed out against a surrounding area through a drain water discharging port or a drain pipe, facilitate the drain to be easily flowed and further to prevent a moisture recovery rate or an energy efficiency from being reduced. CONSTITUTION:A water sealing trap 52 for discharging condensed water dripped while being dewed at a surface of a cooling means 5 out of a drying machine is arranged at a lower part of the cooling means 5. Even if an inner part and an outer part of the drying machine which correspond to both ends of the water sealing trap 52 are set to be negative pressure, a flowing-in or a flowing- out of air against a surrounding area can be shielded through the water sealing trap 52.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dryer, a dehumidifying unit and a cooler for the dryer.

[0002]

2. Description of the Related Art As a first example of a conventional dryer, for example, Japanese Utility Model Publication No. 62-165997 and Japanese Utility Model Publication No. 62-17.
There is one disclosed in Japanese Patent No. 8998. FIG. 32 shows a first example of such a conventional dryer (Actual Development Sho 62-17899).
FIG. 8 is a cross-sectional view showing that of Japanese Patent No.

In the first example of the conventional dryer, a heat pump mechanism including a compressor 2, a condenser 3, a throttle device 4, an evaporator 5 and a refrigerant pipe 6 is installed in a casing 1. ing. Reference numeral 7 denotes a warm air ventilation passage. An evaporator 5 is disposed on the air intake 8 side of the warm air ventilation passage 7, and a condenser 3 is disposed on the leeward side thereof. Warm air ventilation passage 7
Is connected to the rotary drum 10 via the inflow port 9, and the rotary drum 10 is connected to the exhaust port 12 via the outflow port 11. A blower fan 14 is arranged in the exhaust ventilation passage 13 between the outlet 11 and the exhaust outlet 12. The blower fan 14 is attached to a motor 15 via a shaft 16 and is driven by the motor 15. The motor 15 is connected to a drive mechanism (not shown) of the rotary drum 10 via a pulley 17 and a belt 18, and rotates the blower fan 14 via a shaft 16 and at the same time.
It also has a function of rotating the rotary drum 10 via the pulley 17 and the belt 18. The condensed water condensed on the surface of the evaporator 5 is drained as a drain from the drain drain port 19. The clothes to be dried are opened by opening and closing the door 20.
It is put in and out of the rotary drum 10 through 1. Outlet 1
A first thermistor 22, which is a first temperature sensitive element, is fixed in the exhaust ventilation passage 13 on the leeward side of 1, to measure the exhaust temperature from the rotary drum 10. Also compressor 2
A second thermistor 23, which is a second temperature sensitive element, is fixed to the refrigerant pipe 6 between the condenser 3 and the condenser 3, and the temperature of the refrigerant discharged from the compressor 2 is measured via the refrigerant pipe 6. There is.

In the first example of the conventional dryer, the refrigerant compressed by the compressor 2 into a high temperature and high pressure gas radiates heat in the condenser 3 and is further decompressed by the expansion device 4 to lower the temperature. It becomes a low-pressure liquid, and after that, it absorbs heat in the evaporator 5, becomes a gas again, and returns to the compressor 2, which constitutes a heat pump cycle. The air sucked from the air intake port 8 by the blower fan 14 from the outside of the machine is cooled and dehumidified by the evaporator 5 and then heated by the condenser 3 to become dry air at about 50 ° C. After entering the rotary drum 10 through the inlet 9 and exchanging heat with the clothes, the air is exhausted to the outside of the machine through the exhaust fan 12 through the blower fan 14.

The temperature of the exhaust gas from the rotary drum 10 and the temperature of the refrigerant measured by the first and second thermistors 22 and 23, respectively, change as shown in FIG. 33 during the drying operation. In FIG. 33, temperature is plotted on the vertical axis and time is plotted on the horizontal axis. That is, the measured temperature difference between the exhaust gas temperature and the refrigerant temperature increases for a while after the start of the drying operation, but a certain temperature difference (a)
When the temperature reaches a certain level, it reaches a steady state and hardly changes (constant rate dry period). The temperature difference (a) degree at this time is used as a reference value. After the steady state continues for a while, the amount of water evaporated from the clothes decreases, and the difference between the two measured temperatures starts to decrease at the end of the clothes drying (reduction rate drying period).
The drying operation is stopped when the difference between the two measured temperatures reaches (ab) degrees (however, b is an arbitrary positive number determined in advance) (T ₂ ). Here, T _{1 in} FIG. 33 is the time until the difference between the two measured temperatures becomes substantially constant, and when the time T _{1 has} elapsed after the start of operation, the difference between the exhaust temperature from the rotary drum 10 and the refrigerant temperature. Is stored in the storage means as the reference value (a) degree.

As a second example of the conventional dryer, for example, as shown in Japanese Utility Model Laid-Open No. 58-5698, a dehumidifying unit incorporating a heat pump mechanism and a drying chamber are separable. , There is one that can dry clothes and dehumidify the space. 34 and 35 show a second example of such a conventional dryer (Japanese Utility Model Laid-Open No. 58-5698), and FIG. 34 is a sectional view showing a state in which the dehumidifying unit and the drying chamber are assembled. FIG. 35 is a cross-sectional view of the dehumidifying unit in a state where the drying chamber is removed, and in each drawing, the portions corresponding to the above-mentioned first conventional example (FIG. 32) are designated by the same reference numerals. .

In the second example of the conventional dryer, the drying chamber 31 and the dehumidifying unit 32 are separable. Inside the dehumidifying unit 32, the compressor 2, the condenser 3,
An evaporator 5, a first blower 14A, and a second blower 14B are installed. Clothes containing water are stored inside the drying chamber 31. The evaporator 5 is connected to the condenser 3 and the compressor 2 by a refrigerant pipe (not shown), and since the refrigerant evaporates inside the evaporator 5, the heat necessary for the evaporation is taken from the air passing through the evaporator 5, and the air is cooled and dehumidified. It is supposed to do. The condenser 3 is connected to the evaporator 5 and the compressor 2 by a refrigerant pipe, and the compressor 2 is connected in a state where the refrigerant has a high temperature and a high pressure.
Since it is further sent to the inside of the condenser 3, the heat is given to the air passing through the condenser 3 to heat the air. The compressor 2 compresses the refrigerant evaporated in the evaporator 5 and supplies it to the condenser 3. The first blower 14 </ b> A is arranged on the windward side of the condenser 3, compresses air toward the condenser 3, and drives the air to pass through the condenser 3. The second blower 14B drives air so as to pass through the evaporator 5, and when drying clothes, the air inside the machine is compressed toward the evaporator 5 and the air inside the machine is evaporated. When the space is exhausted to the outside and the space is dehumidified and dried, the outside air is sucked through the evaporator 5 and the outside air is introduced into the dehumidification unit 32 through the evaporator 5.

In the second example of the conventional dryer, when drying clothes, a drying chamber 31 and a dehumidifying unit 32 are connected as shown in FIG. The first blower 14A takes in air from the outside and supplies it to the condenser 3. The condenser 3 heats the passing air, and the heated air is supplied to the drying chamber 31. In the inside of the drying chamber 31, the heated and heated air comes into contact with the clothes to evaporate the moisture contained in the clothes, and the clothes are dried. The second blower 14B drives the air from the drying chamber 31 and supplies it to the evaporator 5. The evaporator 5 cools the exhaust gas from the drying chamber to remove heat and exhaust the heat to the outside. Further, when dehumidifying and drying the space, as shown in FIG. 35, the drying chamber 31 is removed from the dehumidifying unit 32. The second blower 14B drives the air from the outside and allows it to pass through the evaporator 5. The evaporator 5 is
The air from the passing external space is cooled and dehumidified and dried.
The first blower 14 </ b> A drives the air that has passed through the evaporator 5 and supplies the air to the condenser 3. The condenser 3 heats the passing air and discharges it to the external space.

FIG. 36 is a sectional view showing a first example of a dehumidifying unit of a conventional dryer. In the figure, parts corresponding to those in FIG. 35 described above are designated by the same reference numerals.

In the first example of the dehumidifying unit of the conventional dryer, the blower 14C is arranged on the leeward side of the condenser 3, and the air on the windward side of the condenser 3 is sucked through the condenser 3. , Through the condenser 3. In the lower part of the evaporator 5 in the dehumidifying unit 32, condensed water 3 condensed and dropped by the evaporator 5
A drain pan 34 for receiving and collecting the water 3 is arranged, and the condensed water 3 collected by the drain pan 34 is provided at the center of the drain pan 34.
A drain pipe 35 is provided for discharging 3 as a drain to the outside of the dehumidifying unit 32.

FIG. 37 is a sectional view showing a second example of the dehumidifying unit of the conventional dryer. In the figure, the above-mentioned conventional example (FIG. 3).
6) and the same parts as those in FIG.

The second example of the dehumidifying unit of this conventional dryer is different from the above-described conventional example (of FIG. 36) in that the blower outlet of the blower 14C is arranged opposite to the upper surface of the evaporator 5. The other configuration is the same as that of FIG. That is, also in the second example of the dehumidifying unit of the conventional dryer, the drain tray 34 is arranged below the evaporator 5 and receives and collects the condensed water 33 condensed and dropped in the evaporator 5. And the drain saucer 3
The drain pipe 35 drains the condensed water 33 collected by the drain pipe 4 to the outside of the dehumidifying unit 32.

FIG. 38 is a perspective view showing a main part of a first example of a conventional cooler for a dryer.

In the first example of the cooler for the conventional dryer, a large number of fins 41 made of thin plates having good heat conduction are laminated at intervals, and thin fin tubes having good heat conduction are formed on these fins 41. The heat exchanger 43 is configured by passing the pipe 42 made of (4) so as to intersect the fin plane. Refrigerant passes through the inside of the pipe 42 of the heat exchanger 43.

Let us consider a case where the first example of the cooler of the conventional dryer is a vertical type, air is made to flow parallel to the fin plane from the horizontal direction, and the refrigerant is evaporated inside the pipe 42. In this case, the heat exchanger 43 is called an evaporator. The heat required to evaporate the refrigerant is removed from the air and the fins 4
1 to the refrigerant through the pipe 42. As a result, the air passing through the heat exchanger 43 is cooled. When the air is cooled until the saturated vapor pressure of the cooled air becomes lower than the water vapor partial pressure of the water contained in the air, the contained water condenses on the fin surface to form condensed water 33,
When the amount increases, the condensed water 33 becomes a heat exchanger (evaporator).
Drop below 43. In this way, the heat exchanger (evaporator) 43 cools and dehumidifies the passing air.

[0016]

Since the first example of the conventional dryer (FIG. 32) is configured as described above, the air on the lee side of the evaporator 5 at the drain drain port 19 is formed. Since the pressure (static pressure) becomes a negative pressure than the air pressure (atmospheric pressure) outside the machine, the air outside the machine flows into the warm air ventilation passage 7 through the drain discharge port 19 and the drain becomes difficult to flow. was there.

Further, the temperature of the refrigerant pipe 6 between the compressor 2 and the condenser 3 becomes a high temperature of about 100 ° C., and the detection accuracy and deterioration of the second thermistor 23 which is the second temperature sensitive element fixed to that portion. There was such a problem.

In the second example of the conventional dryer (FIGS. 34 and 35), the drying chamber 31 is lifted and separated from the upper portion of the dehumidifying unit 32 when switching from drying clothes to dehumidifying the space. In addition, when switching from dehumidifying the space to drying clothes, the drying chamber 31 must be lifted and assembled on the upper part of the dehumidifying unit 32, which requires time and labor for the attachment / detachment. There was a problem to say.

The first dehumidifying unit of the conventional dryer
In the example of FIG. 36 (FIG. 36), a pressure loss occurs due to the air passage resistance of the evaporator 5 when the air is circulated in the dehumidifying unit 32, and the drain pan installed on the leeward side of the evaporator 5 Three
The pressure of the four parts becomes negative compared to the outside. For this reason, there is a problem in that the outside air flows into the inside through the drain pipe 35, which lowers the temperature of the inside air and lowers the energy efficiency.

The second dehumidifying unit of the conventional dryer is used.
In the example of FIG. 37 (FIG. 37), when the air is circulated in the dehumidifying unit 32, the pressure increase of the blower 14C occurs, and the evaporator 5
However, since the pressure increase of the blower 14C is larger than that, the pressure of the drain pan 34 installed on the leeward side of the evaporator 5 also becomes larger than that of the outside and becomes a positive pressure. Therefore, there is a problem that the internal air flows out to the outside through the drain pipe 35, whereby the moisture contained in the internal air is released to the outside, and the moisture recovery rate is lowered.

In the first example of the conventional dryer cooler (FIG. 38), the water condensed on the fin surface drips downward by the action of gravity, so that the condensed water 33 is heat-exchanged. Since it is discharged from the condenser 43, when this cooler is made horizontal as shown in FIG. 39 and the air is arranged so as to flow from the lower side to the upper side of the heat exchanger 43, the condensed water 33 as shown in FIG. The air flow hinders the dripping and discharging of the heat from the heat exchanger 43. In such a case, as the water is condensed, the fin surface is covered with the condensed water over a wide range, and the heat exchange area between the fin 41 and the air is reduced,
Heat exchange efficiency decreases. For this reason, conventionally, there has been a limitation that the cooler must be installed so that the air flow flows in the horizontal direction or the air flow flows in the downward direction.

The present invention has been made in view of the above points, and a first object thereof is to prevent air from entering and exiting from the outside through a drain drain port or a drain pipe, to facilitate drain flow, and to prevent moisture. This is to prevent a decrease in recovery rate and a decrease in energy efficiency.

A second object of the present invention is to provide a second sensor installed outside the exhaust ventilation passage for comparison with the exhaust temperature measured by the first temperature sensitive device installed in the exhaust ventilation passage. This is to prevent deterioration of the temperature element and deterioration of detection accuracy.

A third object of the present invention is to make it possible to switch between clothes drying and space dehumidification by a simple operation.

A fourth object of the present invention is to prevent deterioration of heat exchange efficiency even when air flows from the lower side to the upper side of the heat exchanger.

[0026]

A dryer according to a first aspect of the present invention is a water trap for discharging condensed water, which is condensed and drops on the surface of the cooling means, to the outside of the cooling means below the cooling means. Is provided.

The dryer according to a second aspect of the present invention is a dryer containing section to be measured by a first temperature sensitive element arranged on the leeward side of the article containing section in the air ventilation passage. The second temperature sensing element installed for comparison with the temperature of the air that has passed through is installed on the lee side of the evaporator in the air ventilation path, or outside the machine, or immediately after the condenser in the refrigerant circulation system of the heat pump mechanism. It is arranged either before or after the compressor so that the temperature of the air or the temperature of the refrigerant is measured.

Further, the dryer according to the invention of claim 3 of the present invention is formed in a loop shape with an article to be dried accommodating portion interposed in the middle thereof, and the cooling means and the heating means on the leeward side thereof are arranged inside. First air passage switching means for switching the air passage for the air toward the cooling means between the dried article storage portion side and the machine exterior side is provided on the leeward side of the dried article storage portion in the air ventilation passage. In addition to being installed, on the windward side of the article to be dried storage section, there is provided second air passage switching means for switching the ventilation passage of air after passing through the heating means between the article storage section side to be dried and the machine exterior side. It is a thing.

A dryer according to a fourth aspect of the present invention has an air supply air passage and an exhaust air passage, and while warm air that is dry is introduced from the air supply air passage and exhausted from the exhaust air passage. , An independent drying chamber for drying an object to be dried by bringing the object to be dried in contact with the object to be dried, an intake port and an outlet port, and is configured to be movable on the floor by a supporting means It is possible to separate the independent dehumidification unit that draws in air from the intake port, cools and dehumidifies it, then heats it and blows it out from the air outlet, and the air supply air passage and exhaust air passage in the drying chamber to the air outlet and air inlet of the dehumidification unit. And an air passage connecting means for connecting to.

According to a fifth aspect of the present invention, in the dryer, the air passage connecting means of the fourth aspect is formed so as to project on the surface of the dehumidifying unit, and the inside is connected to the air outlet and the air inlet, respectively. The rectangular cylindrical dehumidifying unit side connection body defined in two spaces, the respective end portions of the air supply air passage and the exhaust air passage extending from the drying chamber are inserted from one end side, and the other end side is connected to the dehumidifying unit side. A rectangular cylindrical drying chamber side connection body that extends to the set height position of the body and has a unit inlet on one side into which the dehumidification unit side connection body can be inserted from the horizontal direction is cut out from the edge on the other end side It is composed of and.

According to a sixth aspect of the present invention, there is provided a dryer in which the dehumidifying unit side is located on both sides of the opening edge facing the dehumidifying unit in the drying chamber side connection body of the fifth aspect when viewed from the unit receiving side. A guide for guiding the connection body is provided, and a lock that can be engaged with the rear end wall of the dehumidification unit side connection body at the time of fitting the dehumidification unit side connection body into the drying chamber side connection body at the peripheral portion of the unit receiving port. It is provided with a member.

Further, the dryer according to the invention of claim 7 of the present invention is the dryer of the claim 5 or claim 6 of the dehumidifying unit side connecting body, and the respective opening surfaces of the air outlet and the air inlet facing each other and Each of the opening surfaces of the air supply air passage and the exhaust air passage in the connecting body on the drying chamber side to be connected is formed as an inclined surface which can be brought into close contact with each other when the connecting body on the dehumidifying unit side is fitted into the connecting body on the drying chamber side.

A dehumidifying unit for a dryer according to an eighth aspect of the present invention has an intake port and a blowout port, and is provided with cooling means from the intake side in an air ventilation path extending from the intake port to the blowout port.
A drainage system including a heating means and a blower, and below the cooling means, a drain receiving tray for receiving condensed water that condenses and drip on the surface of the cooling means, and a drain pipe for discharging the water received in the drain receiving tray to the outside. , The horizontal cross-sectional shape of at least a part of the drain pipe in the drainage system is set smaller than the reference shape, which is the maximum horizontal cross-sectional shape that the water column can hold due to the surface tension of water. Set the drainage system height above the portion where the cross-sectional shape is smaller than the reference shape to be larger than the reference height, which is the water column height equal to the pressure difference between both ends of the drain pipe,
Further, the shape of the drainage system horizontal cross section above the portion where the horizontal cross section shape is smaller than the reference shape is set to be larger than the reference shape at least over the reference height.

According to a ninth aspect of the present invention, in a cooler of a dryer, a large number of thin plate fins are laminated at intervals, and a pipe made of a thin pipe through which a refrigerant passes is formed. For cooling and dehumidifying by passing air between fins by passing through them so as to intersect the plane of fins, decelerating a part of the air flow passing between the fins from below to above the fins. By doing so, a drop passage for condensed water that condenses on the surface of each fin is formed, and a gutter extending in the fin stacking direction that receives and discharges the condensed water that is dropped is provided.

According to a tenth aspect of the present invention, there is provided a cooler for a dryer according to the ninth aspect, wherein the end of the gutter of the ninth aspect, through which the condensed water flows, is located near the inner wall of the air ventilation passage having the fins. It is arranged.

According to an eleventh aspect of the present invention, in a cooler for a dryer, the end of the gutter of the ninth aspect, through which the condensed water flows, penetrates the wall of the air ventilation passage having the fins. It is made to project outside.

[0037]

In the first aspect of the present invention, the condensed water that condenses and drips on the surface of the cooling means is stored in the folded portion below the sealing water trap, and the condensed water that has accumulated passes through the sealing water trap. Air is blocked from the outside. Then, when the amount of stored condensed water increases and the surface of the condensed water passes over the folded portion above the sealing water trap, the surplus is discharged to the outside. In this sealed water trap, if there is a pressure difference between the air pressure on one end side (air ventilation path side) and the air pressure on the other end side (outside the machine), each straight part rising from the lower folding part in two forks A height difference occurs between the water surfaces of the condensed water in the pipe section (the water surface on the negative pressure side becomes higher by the position head corresponding to the pressure difference). This height difference between the water surfaces is maintained even if the volume of water in each straight pipe section increases. Then, at the stage where the water surface inside the machine outer straight pipe portion has passed over the folded portion above the water sealing trap, the height of the water surface inside each straight pipe portion stabilizes near that position while maintaining the above-mentioned height difference. Therefore, according to the first aspect of the present invention, no matter how the pressure difference between the both ends of the sealed water trap is, that is, whichever side has a negative pressure, the inflow / outflow of air from the outside through the sealed water trap is blocked. And drainage becomes easy. Therefore, it is possible to prevent a decrease in moisture recovery rate and a decrease in energy efficiency, facilitate the placement of the blower, and expand the degree of freedom in design.

Further, in the invention of claim 2 of the present invention, the object to be dried passing through the object to be dried measured by the first temperature sensitive element arranged on the leeward side of the object to be dried section in the air ventilation passage. The second temperature sensitive element, which is installed for comparison with the temperature of the air, is installed on the leeward side of the evaporator in the air ventilation path, or outside the machine or immediately after the condenser in the refrigerant circulation system of the heat pump mechanism and before the compressor. Since it is placed in either of the two positions to measure the temperature of the air or the temperature of the refrigerant, the second
The temperature sensitive element is not affected by the high temperature, and deterioration due to the heat and a decrease in detection accuracy can be prevented.

In the invention of claim 3 of the present invention,
When drying the dried object stored in the dried object storage section, the first air passage switching means switches the ventilation paths so that the air sent to the cooling means can be taken in from the dried object storage section. At the same time, the second air passage switching means switches the air passages so that the air after passing through the heating means can flow to the dried object storage portion side. This allows
A loop-shaped air ventilation path is formed. When the looped air ventilation path is formed, the blower drives the air in the air ventilation path, takes in the air from the storage area for the dried object, cools and dehumidifies the taken-in air with the cooling means, and then heats it with the heating means. Then, the dried hot air is supplied into the dried object storage section.
As a result, the material to be dried stored in the material to be dried storage section is dried. Further, when dehumidifying and drying the space in which the dryer is installed, the first air passage switching means switches the ventilation passages so that the air to be sent to the cooling means can be taken in from the outside, and the second air passages. The switching means switches the ventilation passage so that the air after passing through the heating means can flow out of the machine. Then, the blower drives the air in the air ventilation passage, takes in air from the outside, cools and dehumidifies the taken-in air with the cooling means, passes through the heating means, and discharges it to the outside of the dryer. As a result, dehumidifying and drying the space where the dryer is installed is performed. Therefore, according to the third aspect of the invention, it is possible to extremely easily switch the two functions of drying the material to be dried and dehumidifying and drying the space in which the dryer is installed.

Further, in the invention of claim 4 of the present invention,
When drying the material to be dried stored in the drying chamber,
The air passage connecting means connects the air supply air passage and the exhaust air passage of the drying chamber to the air outlet and the air inlet of the dehumidifying unit. When the drying chamber and dehumidifying unit are connected, the dehumidifying unit sucks the air in the drying chamber from the exhaust air passage through the intake port, cools it to dehumidify it, and then heats it to dry hot air through the air supply air passage from the outlet. Supply indoors. Thereby, the material to be dried contained in the drying chamber is dried. Further, when dehumidifying and drying the space, the air passage connecting means disconnects the air supply air passage and the exhaust air passage of the drying chamber from the air outlet and the air inlet of the dehumidifying unit. The dehumidifying unit is configured to be movable on the floor by the support means, and can be easily moved anywhere on the floor when separated from the drying chamber, and thus can be easily moved to a place where dehumidification and drying are desired. Then, at the location where it has moved, the outside air containing moisture is sucked in through the intake port, cooled and dehumidified, then heated and discharged from the blowout port to the outside of the dehumidification unit. As a result, around the place where the dehumidifying unit is moved,
That is, dehumidification and drying of an arbitrary space is performed. Therefore, in the invention of claim 4, a place (arbitrary space) where the drying and dehumidifying unit of the material to be dried in the drying chamber is moved.
Switching to dehumidification can be realized very easily.

Further, in the invention of claim 5 of the present invention, the air passage connecting means of the invention of claim 4 is formed so as to project on the surface of the dehumidifying unit, and two spaces whose interiors are respectively connected to the air outlet and the air inlet. The rectangular cylindrical dehumidifying unit side connection body defined in Fig. 1, each end of the air supply air passage and the exhaust air passage extending from the drying chamber are inserted from one end side, and the other end side is set to the dehumidification unit side connection body. Consists of a rectangular tubular drying chamber-side connector that extends to the height position and has a unit inlet on one side into which the dehumidifying unit-side connector can be fitted horizontally from the other end side. Therefore, the dehumidifying unit and the drying chamber can be disconnected / connected by simply moving the dehumidifying unit in the horizontal direction by the supporting means without lifting.

Further, in the invention of claim 6 of the present invention, the dehumidifying unit side connecting body is provided on both sides of the opening edge facing the dehumidifying unit in the drying chamber side connecting body of the fifth aspect as viewed from the unit inlet side. A guide for guiding is provided, and a lock member that can engage with the rear end wall of the dehumidifying unit side connecting body when the dehumidifying unit side connecting body is fitted into the drying chamber side connecting body is provided at the peripheral portion of the unit receiving port. Therefore, the connection between the dehumidifying unit and the drying chamber is stabilized.

Further, in the invention of claim 7 of the present invention, each of the opening surfaces of the outlet and the intake of the dehumidifying unit side connector of claim 5 or 6 is opposed to and connected to these. Since the opening surfaces of the air supply air passage and the exhaust air passage in the drying chamber side connection body are formed as slopes that can be in close contact with each other when the dehumidification unit side connection body is fitted into the drying chamber side connection body, the dehumidification unit and the drying chamber When connecting, there is no air leakage from the connecting part, and it is possible to prevent a decrease in energy efficiency.

Further, in the invention of claim 8 of the present invention, the blower keeps the air pressure on the inside of the dehumidifying unit of the drain pipe at a negative pressure as compared with the outside of the dehumidifying unit, and the cooler cools the air in the passing air. Water is condensed and the drain pan is
The condensed water is collected and sent to a drain pipe to form a water column in the drain system. Immediately after the dehumidification operation starts, the height of the water column is smaller than the reference height, so the upper end of the part where the horizontal cross section of the drain pipe is smaller than the reference shape causes water to drain due to the surface tension of the water and the pressure difference between the inside and outside of the dehumidification unit. Interfere with.
Therefore, the condensed water is further collected and the height of the water column is increased. When the height of the water column reaches the reference height, the pressure at the bottom of the water column and the pressure outside the dehumidifying unit, and the pressure at the top of the water column and the pressure inside the dehumidifying unit balance each other, so the air flow through the water column is blocked. It Further, the balance between the pressure at the bottom of the water column and the pressure outside the dehumidifying unit starts the discharge of water, and thereafter the height of the water column is maintained at the reference height. As described above, in the invention of claim 8, since the drainage system collects water condensed inside the dehumidifying unit whose inside is kept at a negative pressure to form a water column, the inflow / outflow of air through the drain pipe is blocked. As a result, a decrease in water recovery rate and a decrease in energy efficiency are prevented.

Further, in the invention of claim 9 of the present invention, when the air flows between the fins of the cooler from the lower side to the upper side, the gutter partially absorbs a part of the air flow passing between the fins of the cooler. The speed of deceleration is increased so that the water droplets of condensed water that condense on the surface of each fin easily drop downward, and the water droplets that have fallen are collected and discharged. For this reason, the surface of the fin is not covered with the condensed water, the heat exchange area between the fin and the air is easily secured, and the heat exchange efficiency is prevented from lowering. Further, since the reduction of the heat exchange efficiency is prevented as described above, it becomes possible to install the cooler at a position where the flow of air flows from the downward direction to the upward direction, and the degree of freedom in design is expanded.

Further, in the invention of claim 10 of the present invention, the end of the trough of claim 9 through which the condensed water flows,
Since the fins are arranged near the inner wall of the air ventilation passage, the subsequent drain recovery process becomes easy.

In the invention of claim 11 of the present invention, the end of the trough of claim 9 through which the condensed water flows,
Since the wall of the air ventilation passage where the fins are installed penetrates through and protrudes to the outside, the drain can be directly discharged from the gutter to the outside.

[0048]

【Example】

Example 1. The present invention will be described below with reference to illustrated embodiments.
FIG. 1 is a cross-sectional view showing a first embodiment of a dryer according to the first and second aspects of the present invention. In the figure, a portion corresponding to the above-mentioned first conventional example (FIG. 32). Are given the same reference numerals.

The dryer of this embodiment has a casing 1 in which a heat pump mechanism including a compressor 2, a condenser 3 as a heating means, a throttle device 4, an evaporator 5 as a cooling means, and a refrigerant pipe 6 is provided. is set up. Reference numeral 51 denotes an air ventilation passage formed in a loop shape with the rotary drum 10 serving as a dried object storage portion interposed therebetween, and the evaporator 5 is disposed in the lower air passage of the air ventilation passage 51, and the leeward side thereof. A condenser 3 is arranged in the. A rotary drum 10 is arranged on the leeward side of the condenser 3 via an inflow port 9, and a blower fan 14 is arranged on the leeward side of the rotary drum 10 via an outflow port 11, and the blower fan 14 is provided. By this, air is driven to circulate in the air ventilation passage 51. Motor 1
5 rotates the blower fan 14 via the shaft 16 and the rotary drum 1 via the pulley 17 and the belt 18.
It also has the function of rotating 0. Condensed water that has condensed on the surface of the evaporator 5 is drained out of the machine as a drain from the drain drainage port 19 via a sealed water trap 52 arranged below the evaporator 5. Clothing to be dried is put in and taken out of the rotary drum 10 through the opening 21 by opening and closing the door 20. In the air ventilation passage 51 on the leeward side of the outlet 11, the first
The first thermistor 22, which is a temperature sensitive element, is fixed, and the temperature of air flowing out from the rotary drum 10 is measured. A second thermistor 23A, which is a second temperature sensitive element, is fixed between the evaporator 5 and the condenser 3 in the air ventilation passage 51, and the temperature of the air dehumidified by the evaporator 5 is measured. Has become.

In the dryer of this embodiment, the refrigerant compressed by the compressor 2 into a high-temperature and high-pressure gas is the condenser 3
The heat is radiated by the heat exchanger, and the pressure is reduced by the expansion device 4 into a low-temperature low-pressure liquid, which is then absorbed by the evaporator 5 and returned to the compressor 2 to form a gas, which constitutes a heat pump cycle. There is. The air circulating in the air ventilation passage 51 by the blower fan 14 is cooled and dehumidified by the evaporator 5 and heated by the condenser 3 to become drying air at about 60 ° C., which is rotated from the inlet 9. Drum 1
After entering the inside of 0 and exchanging heat with the clothes, it circulates again in the air ventilation passage 51 through the outlet 11 and the fan 14 for blowing.

Condensed water that condenses and drip on the surface of the evaporator 5 is stored in the folded portion 52a below the sealed water trap 52, and the stored condensed water allows air to flow in and out of the outside through the sealed water trap 52. Is cut off. Then, when the amount of stored condensed water increases and the surface of the water exceeds the folded-back portion 52b above the water sealing trap 52, the excess is discharged to the outside. The opening of the sealed water trap 52 on the air ventilation passage side is formed so as to communicate with both the windward side and the leeward side of the evaporator 5 in the air ventilation passage 51. In this case, depending on the amount of clothes in the rotary drum 10, the water trap 52
The air pressure on the side of the air ventilation path becomes negative or positive with respect to the air pressure outside the machine. In any case,
In this way, if there is a pressure difference between the air pressure on the air ventilation path side of the sealing water trap 52 and the air pressure on the outer side of the machine, the straight pipe portions 52c, 52d in the straight pipe portions 52c, 52d rising from the lower turnaround portion 52a in two forks. A height difference occurs between the water surfaces of the condensed water (the water surface on the negative pressure side becomes higher by the position head corresponding to the pressure difference). The height difference between the water surfaces is due to the straight pipe portions 52c and 52d.
It is maintained even if the water volume inside increases. The water surface in the straight pipe portion 52d on the outer side of the machine is the folded portion 52 above the sealing trap.
At the stage of exceeding b, the height of the water surface in each of the straight pipe portions 52c and 52d becomes stable in the vicinity of the position while maintaining the height difference. Therefore, no matter what the pressure difference between the both ends of the water trap 52 is, that is, whichever side has a negative pressure, the inflow and outflow of air from the outside through the water trap 52 is blocked, and the drain is easily discharged. Becomes For this reason,
It is possible to prevent a decrease in water recovery rate and a decrease in energy efficiency, and it becomes easy to dispose the blower fan 14, and the degree of freedom in design is expanded.

The outflow air temperature from the rotary drum 10 measured by the first thermistor 22 and the evaporator outlet air temperature measured by the second thermistor 23A change as shown in FIG. 2 during the drying operation. In FIG. 2, the vertical axis represents temperature and the horizontal axis represents time. That is, the measured temperature difference between the temperature of the air flowing out from the rotary drum 10 and the air temperature at the outlet of the evaporator increases for a while after the start of the drying operation, but when a certain temperature difference (a ₁ ) is reached, a steady state is almost reached. It does not change (constant rate dry period). The temperature difference (a ₁ ) degree at this time is used as a reference value. After this steady state continues for a while, the difference between the two measured temperatures starts to increase in the clothes drying end gap where the amount of water evaporated from the clothes decreases (decrease drying period). (A ₁ +
The drying operation is stopped when the temperature reaches b ₁ ) degrees (where b ₁ is a predetermined positive number) (T ₂ ). Here, T _{1 in} FIG. 2 is the time until the difference between the two measured temperatures becomes substantially constant, and when the time T _{1 has} elapsed after the start of operation, the difference between the two measured temperatures is calculated and the value is calculated. It is stored in the storage means as the reference value (a ₁ ) degree. In this way, the first thermistor 2
The second thermistor 23A installed for comparison with the temperature of the air flowing out from the rotary drum 10 measured in 2 is placed between the evaporator 5 and the condenser 3 in the air ventilation passage 51 to cool and dehumidify. Since the temperature of the generated air is measured, the second thermistor 23A is not affected by the high temperature, and deterioration due to the heat and a decrease in detection accuracy can be prevented.

Embodiment 2 FIG. FIG. 3 is a sectional view showing a second embodiment of the drier according to the first and second aspects of the present invention. In the figure, a portion corresponding to the above-mentioned first embodiment (FIG. 1) is shown. Are given the same reference numerals.

The dryer of this embodiment has the first thermistor 2
The second thermistor 23B installed for comparison with the temperature of the air flowing out from the rotary drum 10 measured in 2 is fixed outside the machine to measure the temperature of the surrounding air. The configuration of is the same as that of the first embodiment described above.

In the dryer of this embodiment, the temperature of the air flowing out from the rotary drum 10 measured by the first thermistor 22 and the air temperature around the outside of the machine measured by the second thermistor 23B are almost as shown in FIG. 4 during the drying operation. Change as shown.
In FIG. 4, the vertical axis represents temperature and the horizontal axis represents time.
That is, the measured temperature difference between the temperature of the air flowing out from the rotary drum 10 and the air temperature outside the machine increases for a while after the start of the drying operation, but reaches a steady state when a certain temperature difference (a ₂ ) is reached. Almost no change (constant rate dry period). The temperature difference (a ₂ ) degree at this time is used as a reference value. After this steady state continues for a while, the difference between the two measured temperatures starts to increase in the clothes drying end gap where the amount of water evaporated from the clothes decreases (decrease drying period). The drying operation is stopped when the temperature reaches (a ₂ + b ₂ ) degrees (where b ₂ is an arbitrary positive number determined in advance) (T ₂ ). Here, T _{1 in} FIG. 4 is the time until the difference between the two measured temperatures becomes substantially constant, and when the time T _{1 has} elapsed after the start of operation, the difference between the two measured temperatures is calculated and the value is calculated. It is stored in the storage means as the reference value (a ₂ ) degree. In this way, the second thermistor 2 installed for comparison with the temperature of the air flowing out from the rotary drum 10 measured by the first thermistor 22.
Since 3B is arranged outside the machine to measure the air temperature around the outside of the machine, the second thermistor 23B is not affected by the high temperature and is affected by the heat as in the first embodiment. It is possible to prevent deterioration and deterioration of detection accuracy.

Example 3. FIG. 5 is a sectional view showing a third embodiment of the drier according to the first and second aspects of the present invention. In the figure, a portion corresponding to the above-mentioned first embodiment (FIG. 1) is shown. Are given the same reference numerals.

The dryer of this embodiment has the first thermistor 2
The second thermistor 23C, which is installed for comparison with the temperature of the air flowing out from the rotary drum 10 measured in 2, is connected to the refrigerant pipe 6 between the expansion device 4 and the evaporator 5 of the heat pump mechanism.
The temperature of the refrigerant is measured via the refrigerant pipe 6, and the other structure is the same as that of the first embodiment.

In the dryer of this embodiment, the temperature of the air flowing out from the rotary drum 10 measured by the first thermistor 22 and the temperature of the refrigerant between the expansion device 4 and the evaporator 5 measured by the second thermistor 23C are During the drying operation, the temperature changes as shown in FIG. In FIG. 6, the vertical axis represents temperature and the horizontal axis represents time. That is, for a while after the start of the drying operation, the temperature of the air flowing out from the rotary drum 10 and the expansion device 4
The measured temperature difference between the temperature of the refrigerant and the temperature of the refrigerant between the evaporator 5 and the evaporator 5 increases, but when a certain temperature difference (a ₃ ) is reached, a steady state is reached and there is almost no change (constant rate dry period). The temperature difference (a ₃ ) at this time is used as a reference value. After this steady state continues for a while, the difference between the two measured temperatures starts to increase in the clothes drying end gap where the amount of water evaporated from the clothes decreases (decrease drying period). (A
_The drying operation is stopped when the temperature reaches ₃ + b ₃ ) degrees (however, b ₃ is a predetermined positive number) (T ₂ ). Here, T _{1 in} FIG. 6 is the time until the difference between the two measured temperatures becomes substantially constant, and when the time T _{1 has} elapsed after the start of operation, the difference between the two measured temperatures is calculated and the value is calculated. It is stored in the storage means as the reference value (a ₃ ). As described above, the second thermistor 23C installed for comparison with the temperature of the air flowing out from the rotary drum 10 measured by the first thermistor 22 is connected to the refrigerant pipe between the expansion device 4 and the evaporator 5 of the heat pump mechanism. Since the temperature of the refrigerant is measured via the refrigerant pipe 6 while being fixed to No. 6, the second temperature is measured in the same manner as in the above-described respective embodiments.
The thermistor 23C is not affected by the high temperature, and deterioration due to the heat and a decrease in detection accuracy can be prevented.

Example 4. FIG. 7 is a sectional view showing a fourth embodiment of the drier according to the first and second aspects of the present invention. In the figure, a portion corresponding to the above-mentioned first embodiment (FIG. 1) is shown. Are given the same reference numerals.

The dryer of this embodiment has the first thermistor 2
The second thermistor 23D installed for comparison with the temperature of the air flowing out from the rotary drum 10 measured in 2 is fixed to the refrigerant pipe 6 between the evaporator 5 and the compressor 2 of the heat pump mechanism, and the refrigerant pipe The temperature of the refrigerant is measured via 6 and the other construction is the same as that of the first embodiment.

In the dryer of this embodiment, the temperature of the air flowing out from the rotary drum 10 measured by the first thermistor 22 and the temperature of the refrigerant between the evaporator 5 and the compressor 2 measured by the second thermistor 23D are During the drying operation, the temperature changes as shown in FIG. In FIG. 8, the vertical axis represents temperature and the horizontal axis represents time. That is, the measured temperature difference between the temperature of the air flowing out from the rotary drum 10 and the temperature of the refrigerant between the evaporator 5 and the compressor 2 increases for a while after the start of the drying operation, but a certain temperature difference (a ₄ ), The steady state is reached and almost no change occurs (constant rate dry period). The temperature difference (a ₄ ) at this time is used as a reference value. After this steady state continues for a while, the difference between the two measured temperatures starts to increase in the clothes drying end gap where the amount of water evaporated from the clothes decreases (decrease drying period). (A ₄
When + b ₄ ) degrees (where b ₄ is an arbitrary positive number determined in advance) is reached (T ₂ ), the drying operation is stopped. Here, FIG.
T ₁ in the above is the time until the difference between the two measured temperatures becomes substantially constant, and when the time T _{1 has} elapsed after the start of operation, the above T 2
The two measured temperature differences are calculated, and the calculated values are stored in the storage means as the reference value (a ₄ ) degree. As described above, the second thermistor 23D installed for comparison with the temperature of the air flowing out from the rotary drum 10 measured by the first thermistor 22 is connected to the refrigerant pipe between the evaporator 5 and the compressor 2 of the heat pump mechanism. 6
The temperature of the refrigerant is fixed to the second thermistor 23D via the refrigerant pipe 6, so that the second thermistor 23D is not affected by the high temperature, and deterioration or detection accuracy due to the heat is obtained, as in the above-described embodiments. Can be prevented.

Example 5. FIG. 9 is a sectional view showing a fifth embodiment of the drier according to the first and second aspects of the present invention. In the figure, a portion corresponding to the above-mentioned first embodiment (FIG. 1) is shown. Are given the same reference numerals.

The dryer of this embodiment includes the first thermistor 2
The second thermistor 23E installed for comparison with the temperature of the air flowing out from the rotary drum 10 measured in 2 is installed in the refrigerant pipe 6 between the condenser 3 and the expansion device 4 of the heat pump mechanism.
The temperature of the refrigerant is measured via the refrigerant pipe 6, and the other structure is the same as that of the first embodiment.

In the dryer of this embodiment, the temperature of the air flowing out from the rotary drum 10 measured by the first thermistor 22 and the temperature of the refrigerant between the condenser 3 and the expansion device 4 measured by the second thermistor 23E are During the drying operation, it changes as shown in FIG. In FIG. 10, the vertical axis represents temperature and the horizontal axis represents time. That is, the measured temperature difference between the temperature of the air flowing out from the rotary drum 10 and the temperature of the refrigerant between the condenser 3 and the expansion device 4 increases for a while after the start of the drying operation, but a certain temperature difference (a ₅ ), The steady state is reached and almost no change occurs (constant rate dry period). The temperature difference (a ₅ ) at this time is used as a reference value. After the steady state continues for a while, the difference between the two measured temperatures begins to decrease in the clothes drying end gap where the amount of water evaporated from the clothes decreases (decrease drying period), but the two measured temperature differences (a ₅ -b ₅₎ degrees (wherein, b ₅ is any positive number a predetermined) to stop the drying operation when it reaches the (T _2). Here, T _{1 in} FIG. 10 is the time until the difference between the two measured temperatures becomes substantially constant, and when the time T _{1 has} elapsed after the start of operation, the difference between the two measured temperatures is calculated and the value is calculated. It is stored in the storage means as the reference value (a ₅ ) degree. In this way, the second thermistor 2 installed for comparison with the temperature of the air flowing out from the rotary drum 10 measured by the first thermistor 22.
3E is fixed to the refrigerant pipe 6 between the condenser 3 and the expansion device 4 of the heat pump mechanism, and the temperature of the refrigerant is measured through the refrigerant pipe 6, so that the same as in the above-described embodiments. The second thermistor 23E is not affected by the high temperature, and it is possible to prevent the deterioration due to the heat and the deterioration of the detection accuracy.

FIG. 11 is a block diagram showing the structure of a control unit common to the first to fifth embodiments of the dryer according to the first and second aspects of the present invention. A key signal such as a start signal from the key input unit 54 and a temperature signal from the first and second thermistors 22 and 23 are input to the control unit 53 having a microcomputer configuration. First and second thermistor 2
The values calculated based on the temperature information from Nos. 2 and 23 are stored in the storage unit 55 in the control unit 53. The control unit follows the preset program based on these pieces of information, and sends the blower fan 14 and the rotary drum 10 via the control circuit 56.
The drive motor 15 and the drive of the compressor 2 are controlled.

Example 6. 12 and 13 show an embodiment of the dryer according to the invention of claim 3 of the present invention,
FIG. 12 is a cross-sectional view showing a mode in which the material to be dried is dried, and FIG. 13 is a cross-sectional view showing a mode in which dehumidifying and drying the space are carried out. (FIG. 34) and the parts corresponding to the first embodiment (FIG. 1) are designated by the same reference numerals.

In the dryer of this embodiment, the casing 1 is provided with a drying chamber portion 31A in the lower portion and a dehumidifying unit portion 32A in the upper portion.
However, the drying chamber portion 31A and the dehumidifying unit portion 32A are integrally provided with the casing 1. The air ventilation passage 51 is basically formed in a loop shape, the evaporator 5 of the heat pump mechanism is arranged in the dehumidifying unit portion 32A which is the upper air passage, and the condenser 3 is provided on the leeward side thereof.
Is arranged. Further, on the leeward side of the condenser 3, a blower 14A that drives the air in the air passage, cools and dehumidifies this air by the evaporator 5, and then heats it by the condenser 3 is provided. On the leeward side of the drying chamber portion 31A in the air ventilation passage 51, there is a first air passage switching means for switching the ventilation passage for air toward the evaporator 5 between the drying chamber portion 31A side and the outside of the machine. The damper 61 of No. 1 is provided, and on the windward side of the drying chamber portion 31A, the second wind that switches the air passage of the air after passing through the condenser 3 between the drying chamber portion 31A side and the machine exterior side. A second damper 62, which is a road switching means, is installed. The first damper 61 includes an outside air inlet 1a formed in a leeward side wall portion of the drying chamber of the casing 1, and a leeward side of the drying chamber portion 31A in the partition wall 63 that defines the inside of the casing 1 into the drying chamber portion 31A and the dehumidifying unit portion 32A. One side of the plate body is pivotally attached to the casing 1 so that any one of the first communication ports 63a formed in the side portion can be selectively closed. The second damper 62 is an exhaust port 1b formed on the windward side wall of the drying chamber of the casing 1.
And a plate body pivotally attached to the casing 1 on one side so that either of the second communication ports 63b formed in the partition 63 on the windward side of the drying chamber 31A can be selectively closed. It is configured.

In the dryer of this embodiment, the drying chamber section 3
When the clothes 64, which is the object to be dried, stored in 1A is dried, the first damper 61 switches the ventilation path so that the air sent to the evaporator 5 can be taken in from the drying chamber portion 31A, The first communication port 63a is opened and the outside air introduction port 1a is closed. Further, the second damper 62 switches the ventilation path so that the air after passing through the condenser 3 can flow to the drying chamber 31A side, the second communication port 63b is opened, and the exhaust port 1b is closed ( (Fig. 12). As a result, a loop-shaped air ventilation path 51 is formed. When the loop-shaped air ventilation passage 51 is formed, the blower 14A causes the air ventilation passage 5 to move.
1 is driven to take in air from the inside of the drying chamber 31A, the taken-in air is cooled and dehumidified by the evaporator 5 and then heated by the heating means, and dried hot air is formed in the drying chamber 31A.
Put it back in. As a result, the clothes 64 stored in the drying chamber 31A are dried.

When dehumidifying and drying the space in which the dryer is installed, the first damper 61 switches the ventilation path so that the air sent to the evaporator 5 can be taken in from outside the machine, and the first communication is performed. The opening 63a is closed and the outside air inlet 1a is opened. In addition, the second damper 62 switches the ventilation path so that the air after passing through the condenser 3 can flow to the outside of the machine, the second communication port 63b is closed, and the exhaust port 1b is opened (FIG. 13). . As a result, the drying chamber 31A is shut off,
The dehumidifying unit portion 32A communicates with the outside. When the dehumidifying unit section 32A communicates with the outside, the blower 14A drives the air, takes in the outside air from the outside air introduction port 1a, cools and dehumidifies the taken air by the evaporator 5, passes through the condenser 3 and discharges it to the outside. . As a result, dehumidifying and drying the space where the dryer is installed is performed.

As described above, the switching between the drying of the clothes 64 and the dehumidification of the space is realized by switching the air passages by the first damper 61 and the second damper 62. Each damper 61,
If 62 is configured to be controllable by a lever or the like, the user can operate the lever or the like, which makes it extremely easy for the user to wear the clothes 6
It is possible to switch between drying of No. 4 and dehumidification of the space.
Therefore, it is possible to extremely easily switch between the two functions of drying the clothes 64 and dehumidifying and drying the space in which the dryer is installed.

Example 7. 14 to 17 show an embodiment of the drier according to the inventions of claims 4, 5, 6 and 7 of the present invention, and FIG. 14 is a perspective view showing a mode of drying the material to be dried. FIG. 15 is a perspective view showing a mode when dehumidifying and drying the space, FIG. 16 is an exploded perspective view showing an enlarged air passage connecting means, which is a main part thereof, and FIG. 17 is FIG.
35 is a perspective view showing the assembled state of FIG. 34, in which the same reference numerals are given to the portions corresponding to the second example (FIG. 34) of the conventional dryer.

The dryer of this embodiment has a supporting base 71 having a mounting base 71a at a predetermined height position, and an air supply passage which is mounted on the mounting base 71a of the supporting base 71 and extends outward from the main body. 72 and an exhaust air passage 73, while the warm air that is dry from the air supply air passage 72 is introduced and exhausted from the exhaust air passage 73, the clothes, which is the object to be dried, is brought into contact with the dry warm air. Independently configured drying chamber 31 for drying clothes and intake port 7
4 and an outlet 75, and is configured to be movable on the floor by a wheel 76 which is a supporting means, and is an independently configured dehumidifying unit that sucks air from the inlet 74 to cool and dehumidify it, then heat it and blow it out from the outlet 75. 32, and the air supply passage 72 and the exhaust air passage 73 of the drying chamber 31 are connected to the air outlet 75 and the air inlet 74 of the dehumidifying unit 32 so as to be detachably connected. For example, the dehumidifying unit 32 has a heat pump mechanism (not shown) and a blower for air drive (only the first blower), which is basically the same as that of the conventional example (FIG. 34).

This will be described in further detail. The air passage connecting means 77.
Is a rectangular cylindrical dehumidifying unit-side connector 78 that is formed so as to project on the upper surface of the dehumidifying unit 32 and has its interior defined in two spaces that are respectively connected to the air outlet 75 and the air inlet 74.
The respective end portions of the air supply air passage 72 and the exhaust air passage 73 extending from the drying chamber 31 are inserted from one end side, the other end side extends to the set height position of the dehumidifying unit side connection body 78, and dehumidifying on one side surface. A unit receiving port 79 into which the unit-side connecting member 78 can be fitted in the horizontal direction is composed of a rectangular-cylindrical drying chamber-side connecting member 81 having a notch formed from the edge on the other end side.

Further, guides 82 for guiding the dehumidifying unit side connection body 78 are installed on both sides of the opening edge of the drying chamber side connection body 81 facing the dehumidification unit 32 from the unit receiving side 79. At the same time, grooves 83 into which the guides 82 can be fitted are formed in the lower portions of both side surfaces of the dehumidifying unit-side connecting body 78, and the dehumidifying unit into the drying chamber-side connecting body 81 is further formed at the upper edge of the unit receiving port 79. A lock member 84 is provided which can be engaged with the rear end wall 78a of the dehumidifying unit side connector 78 when the side connector 78 is fitted.

Furthermore, the opening surfaces of the air outlet 75 and the air inlet 74 of the dehumidifying unit side connection body 78, and the air supply air passage 72 and the exhaust air passage in the drying chamber side connection body 81 which are opposed to and are connected to these. As shown in FIGS. 16 and 17, the respective opening surfaces of 73 correspond to the dehumidifying unit side connection body 78 into the drying chamber side connection body 81.
Are formed on the parallel inclined surfaces 85 and 86 which can be in close contact with each other at the time of fitting.

In the dryer of this embodiment, the drying chamber 31
When the clothes stored inside are dried, the air supply passage 72 of the drying chamber 31 and the exhaust air passage 7 are provided by the air passage connecting means 77.
3 is connected to the air outlet 75 and the air inlet 74 of the dehumidifying unit 32. This connection is performed by lifting the dehumidifying unit 32 and moving the dehumidifying unit side connecting body 78 horizontally on the floor by the wheels 76 and fitting it into the unit receiving port 79 of the drying chamber side connecting body 81. Since the dehumidifying unit side connection body 78 and the drying chamber side connection body 81 are set in advance so that the height positions thereof match each other on the floor (on the same plane), the dehumidification unit side connection body 78 is connected to the drying chamber side connection body. When it is fitted into the unit receiving port 79 of the body 81,
Inevitably, the groove 83 of the dehumidifying unit side connection body 78 engages with the guide 82 of the drying chamber side connection body 81. Then, in this state, when the dehumidifying unit-side connecting body 78 is further moved in the horizontal direction and inserted into the interior of the drying chamber-side connecting body 81, the outlet 75 of the dehumidifying unit-side connecting body 78 and the slope 85 of the intake port 74. And the air supply passage 7 in the drying chamber side connection body 81 formed on each of the opening surfaces formed on the
2 and the respective opening surfaces of the exhaust air passage 73 are brought into contact with each other to be closely joined. At the time of this close joining, the drying chamber side connection body 81 receives an upward pressing force (component force) by the dehumidifying unit side connection body 78, and this pushing up force is supported by the guide 82.
Further, the dehumidifying unit side connection body 78 is the drying chamber side connection body 81.
The reaction force in the direction of deviation from the lock member 84 is received by engaging the lock member 84 provided at the upper edge of the unit receiving port 79 with the rear end wall 78a of the dehumidifying unit side connector 78. Can be supported by. That is, the lock member 8
4 and the guide 82 are wedge-shaped dehumidifying unit side connection bodies 78.
Acts so as to be held in a state in which it is sufficiently pushed into the drying chamber side connection body 81. Drying chamber 31 and dehumidifying unit 3
When 2 is connected, the dehumidifying unit 32 sucks the air in the drying chamber 31 from the exhaust air passage 73 through the intake port 74,
After dehumidifying by cooling, heat to dry hot air and blow out port 75
Through the air supply air passage 72 to return to the inside of the drying chamber 31. Thereby, the clothes stored in the drying chamber 31 are dried.

When the space is dehumidified and dried, the air passage connecting means 77 separates the air supply air passage 72 and the exhaust air passage 73 of the drying chamber 31 from the air outlet 75 and the air inlet 74 of the dehumidifying unit 32. In this disconnection, the locking member 84 is rotated to release the engagement with the rear end wall 78a of the dehumidifying unit side connecting body 78, and the dehumidifying unit 32 is moved in the horizontal direction to be pulled out from the inside of the drying chamber side connecting body 81. Done by.
The dehumidifying unit 32 is configured to be movable on the floor by wheels 76, and can be easily moved anywhere on the floor when separated from the drying chamber 31, so that it can be easily moved to a place where dehumidification and drying are desired. Then, in the moved place, external air containing moisture is sucked in through the intake port 74, cooled and dehumidified, heated, and then discharged from the dehumidification unit 32 through the blowout port 75. As a result, dehumidification and drying around the place where the dehumidification unit 32 is moved, that is, an arbitrary space is performed.

In this way, the air supply air passage 72 and the exhaust air passage 73 of the drying chamber 31 are detachably connected to the air outlet 75 and the air inlet 74 of the dehumidifying unit 32 by the air passage connecting means 77. Therefore, switching between the drying of the clothes stored in the drying chamber 31 and the dehumidification of the place (arbitrary space) where the dehumidifying unit 32 is moved can be realized very easily.

Further, the air passage connecting means 77 is composed of the dehumidifying unit side connecting body 78 and the drying chamber side connecting body 81, and the dehumidifying unit side connecting body 78 is fitted in the drying chamber side connecting body 81 from the horizontal direction. Since the possible unit inlet 79 is provided, the dehumidifying unit side connector 78 and the drying chamber side connector 81
Can be connected / disconnected by moving the dehumidifying unit 32 supported by the wheels 76 in the horizontal direction, and after disconnecting, the dehumidifying unit 32 can be easily moved to a place where dehumidification / drying is desired.

Further, the opening surfaces of the outlet port 75 and the intake port 74 of the dehumidifying unit side connection body 78 and the opening surfaces of the air supply air passage 72 and the exhaust air passage 73 in the drying chamber side connection body 81 are mutually Since it is formed on parallel slopes 85 and 86 that can be in close contact,
When the dehumidifying unit 32 and the drying chamber 31 are connected, there is no air leakage from the connecting portion, and it is possible to prevent a decrease in energy efficiency.

Furthermore, since this tightly joined state is held by the guide 82 and the lock member 84 provided on the drying chamber side connection body 81, the connection state of each air passage is stable, and as a result, dehumidification is achieved. The connection state between the unit 32 and the drying chamber 31 becomes stable.

Example 8. 18 to 22 show a first embodiment of a dehumidifying unit of a dryer according to the invention of claim 8 of the present invention, and FIG. 18 is a sectional view showing the entire structure thereof,
FIG. 19 is an explanatory view showing an enlarged drainage system which is a main part of the drainage system.
20 to 22 are explanatory views of the movement of the condensed water in the drainage system, and in each drawing, the same parts as those in the first example (FIG. 36) of the dehumidifying unit of the conventional dryer are the same. It is attached with a code.

The structure of the dehumidifying unit of the dryer of this embodiment is the same as that of the conventional example (shown in FIG. 36) except for the drainage system. That is, the dehumidifying unit 32 has an intake port 91 and an outlet port 92, and in the air ventilation path 93 extending from the intake port 91 to the outlet port 92, in the order from the intake port side to the leeward side, an evaporator as a cooling means. 5, the condenser 3 which is the heating means, and the blower 14C are arranged, and the drain receiving tray 34A and the drain receiving tray 34A receive the condensed water 33 that is condensed and drops on the surface of the evaporator 5 below the evaporator 5. A drainage system 94 including a drain pipe 35A for discharging water to the outside is provided. Therefore, the pressure P of the drain pan 34A part
₁ is the pressure P ₀ outside the dehumidifying unit due to the pressure loss due to the wind path resistance of the evaporator 5 installed on the windward side.
The negative pressure (P ₁ <P ₀ ) is higher than that of

The drainage system 94 will be described in more detail with reference to FIG. 19. In the drain pipe 35A, the lower cross section 35a has a horizontal cross sectional shape (diameter d ₁ ) of which the water column can be held by the surface tension of the water. maximum shape in which the reference shape (diameter d _c) less than (d ₁ <d _c) with being set, the horizontal section shape of the upper 35b connected to the drain pan 34A (diameter d _2), It is set to be larger than the reference shape (diameter d _c ) (d ₂ > d _c ). The drain receiving tray 34A is set large enough to receive the condensed water 33 dropped from the evaporator 5. Further, the height (depth) h ₁ from the upper end 35c of the lower portion 35a, which is a portion where the horizontal cross-sectional shape of the drain pipe 35A is smaller than the reference shape, to the upper end 34a of the drain pan 34A, is the pressure at both ends of the drain pipe 35A. The height is set to be larger than the reference height h _c, which is the height of the water column equal to the difference (h ₁ > h _c ). As described above, the pressure P ₁ inside the dehumidifying unit of the drain pipe 35A is the pressure P ₀ outside the dehumidifying unit.
The negative pressure (P ₁ <P ₀ ) is higher than that of At this time, the reference height h _c corresponds to the position head portion where h _c = P ₀ −P ₁ . The drain pan 34A collects the water condensed in the evaporator 5. If the depth of the collected water is h, the pressure P at the bottom of the water (the deepest part) is P = P ₁ + h (hereinafter, the unit of pressure is considered as the height of the water column).

In the dehumidifying unit of the dryer of this embodiment, the blower 14C keeps the air pressure inside the dehumidifying unit of the drain pipe 35A at a negative pressure as compared with the outside of the dehumidifying unit, and the evaporator 5 passes the passing air. The water in the water is condensed, and the drain pan 34A collects the condensed water and sends it to the drain pipe 35A to form a water column in the drainage system 94.

Immediately after the dehumidifying operation is started, as shown in FIG. 20, the condensed water 33 collected in the drain pan 34A has an upper portion 3 in which the horizontal cross-sectional shape of the drain pipe 35A is larger than the reference shape.
Along the wall surface of 5b, the horizontal cross-sectional shape reaches the upper end 35c portion of the lower portion 35a smaller than the reference shape. In the lower portion 35a whose horizontal cross-sectional shape is smaller than the reference shape, the water does not propagate along the wall surface but tries to form a water column in the pipe by the action of surface tension. However, when a small water column is formed at the upper end 35c of the lower portion 35a whose horizontal cross-sectional shape is smaller than the reference shape, a pressure difference between the outside and the inside of the dehumidifying unit 32 acts on this water column, and water enters the dehumidifying unit. Lower part 3 pushed up and the horizontal cross-sectional shape is smaller than the reference shape
It cannot enter from the upper end 35c of 5a. Therefore, the water cannot be discharged, and the condensed water is further collected. As shown in FIG. 21, the lower portion 35 whose horizontal cross-sectional shape is smaller than the reference shape is formed.
Water will collect on the upper side of the upper end 35c of a.

If the depth of the accumulated condensed water 33 is h,
The pressure P at the lowermost portion (deepest portion) of water is P = P ₁ + h. For a while after the dehumidifying operation is started, the amount of collected water is small and the depth h of the water is smaller than the reference height h _c (h <h
_c ). Therefore, the pressure P of the lowest part of water becomes smaller than the pressure P ₀ outside the dehumidifying unit (P = P ₁ + h <P ₁ + h
_c = P ₀ ). Therefore, a force from the outside to the inside of the dehumidifying unit is applied to the lowermost portion (the deepest portion) of the water, which prevents the water from being discharged. The condensed water gathers further and the water depth h
However, when the reference height h _c is reached, the pressure of the lowermost portion (deepest portion) of the water and the pressure outside the dehumidifying unit compete with each other. Then, when the depth h of the water exceeds the reference height h _c , the water starts to enter from the upper end 35c of the lower portion 35a whose horizontal cross-sectional shape is smaller than the reference shape, and the discharge of the water is started.

When the discharge of water is started, a water column is formed in the drain pipe 35A as shown in FIG. 22, and the water column is formed by the balance between the pressure at the lowermost portion (the deepest portion) and the pressure outside the dehumidifying unit. Is maintained at the reference height h _c . In this water column, the pressure at the top is balanced with the pressure inside the dehumidifying unit, and the pressure at the bottom (deepest portion) is balanced with the pressure outside the dehumidifying unit, so that the flow of air through the water column is blocked. do.

As described above, by collecting the water condensed inside the dehumidifying unit whose negative pressure is kept inside to form the water column, the inflow and outflow of air through the drain pipe 35A is blocked, and the water recovery rate is lowered. Reduction of energy efficiency is prevented.

Example 9. FIG. 23 is an explanatory view showing a drainage system which is a main part of a second embodiment of the dehumidifying unit of the dryer according to the invention of claim 8 of the present invention, and in the drawing, the above-mentioned first embodiment (FIG. 18). , FIG. 19) are designated by the same reference numerals.

In the dehumidifying unit of the dryer of this embodiment, the depth h ₂ of the drain receiving tray 34B of the drainage system 94 is set larger than the above-mentioned reference height h _c (h ₂ > h _c ) and the drain pipe is The horizontal cross-sectional shape of 35B (diameter d ₃ ) is set to be smaller (d ₃ <d _c ) than the above-mentioned reference shape (diameter d _c ) over the entire length, and other configurations are the same as those of the first embodiment described above. It is the same as the example (FIGS. 18 and 19).

Also in the dehumidifying unit of the dryer of this embodiment, as in the first embodiment (FIGS. 18 and 19) described above,
The condensed water can be collected to form a water column, which can prevent air from entering and exiting through the drain pipe 35B, and prevent a decrease in water recovery rate and a decrease in energy efficiency.

Example 10. FIG. 24 is an explanatory view showing a drainage system which is a main part of a third embodiment of the dehumidifying unit of the dryer according to the invention of claim 8 of the present invention, and in the drawing, the above-mentioned first embodiment (FIG. 18). , FIG. 19) are designated by the same reference numerals.

In the dehumidifying unit of the dryer of this embodiment, the horizontal cross-sectional shape (diameter d ₄ ) of the drain pipe 35C is basically larger than the reference shape (diameter d _c ) described above over the entire length (d ₄ >). d _c ), and the shape of the opening (diameter d ₅ ) is smaller than the reference shape (diameter d _c ) therein (d _c ).
₅ <provided with a _{d c)} throttle portion 35d, the diaphragm portion 35
is obtained by reference greater than the height _{h c (h 3> h c} ) setting the height h ₃ to the upper end 34b described above drain pan 34C from d, the other configuration the first embodiment described above ( 18 and 19).

Also in the dehumidifying unit of the dryer of this embodiment, as in the above-described first embodiment (FIGS. 18 and 19),
Condensed water can be collected to form a water column, which can prevent air from entering and exiting through the drain pipe 35C, and prevent a decrease in water recovery rate and a decrease in energy efficiency.

Example 11. 25 to 27 show an embodiment of the cooler of the dryer according to the invention of claim 9 of the present invention. FIG. 25 is a perspective view seen from below, and FIG. 26 is an enlarged view of the fin surface portion. FIG. 27 is a side view showing a part of the cross section, and FIG. 27 is a front view showing an enlarged part of the gutter part and showing the part of the gutter. In each figure, the first part of the cooler of the conventional dryer is shown. The parts corresponding to the example (FIG. 38) are denoted by the same reference numerals. In addition, here, the refrigerant will be described as one that evaporates inside the pipe of the present cooler (evaporator of the heat pump mechanism).

In the cooler of the dryer of this embodiment, a large number of fins 41 made of thin plates having good heat conductivity are laminated at intervals, and a pipe 42 made of a thin-walled tube having good heat conduction is finned to these fins 41. By passing the refrigerant through the pipe 42 so as to intersect with the plane, the cooler body 4
3A is configured. On the lower side of the main body 43A, that is, on the lower side of the fins 41, a plurality of rows (two rows in this embodiment) of gutters 101 extending in the fin stacking direction are installed, and thereby a cooler 102 is configured. The gutter 101 has a section V
A part of the air flow that is formed in a letter shape and that passes between the fins 41 from below to above is decelerated to form a drop passage for the condensed water 33 that condenses on the surface of each fin 41, and to drop the condensed water 33. It has the function of receiving and discharging. Therefore,
Other cross-sectional shapes, for example, U-shaped cross-sections may be used as long as they can exhibit the same function.

In the cooler of the dryer of this embodiment, when air flows between the fins 41 of the cooler 102 from the lower side to the upper side, the water droplets of the condensed water 33 condensed on the surfaces of the fins 41 are caused by the action of gravity. It receives a downward force, but also receives an upward force from the downward flow of air. In a place where the wind speed of air is high, the upward force is large and the water droplets move upward, and in a place where the wind speed is low, the upward force is small and the water droplets move downward. Gutter 101
In the portion of the fins 41 located above, the air flow is affected by the gutter 101, and vortices are generated, so that the wind speed decreases. Therefore, the water droplets on the upper part of the gutter 101 move downward without receiving much upward force by the air and drop from the fin 41 to the gutter 101. Also, gutter 1
The water droplets condensed at a position deviating from the position directly above 01 are also attracted by the vortex flow and wrap around to the gutter 101 side, and drip into the gutter 101. The condensed water 33 collected inside the gutter 101 is the gutter 1
01 is discharged to the outside of the cooler.

As described above, when the air flows between the fins 41 of the cooler 102 from the lower side to the upper side, the gutter 101 decelerates a part of the air flow passing between the fins 41 of the cooler 102, and The water droplets of the condensed water 33 that condense on the surface of the fin 41 easily fall downward, and the water droplets that fall are collected and discharged to the outside of the cooler, so that the surface of the fin 41 is not covered with the condensed water, It becomes easy to secure a heat exchange area between 41 and the air, and a decrease in heat exchange efficiency is prevented. Further, since the reduction of the heat exchange efficiency is prevented as described above, it becomes possible to install the cooler at a position where the flow of air flows from the downward direction to the upward direction, and the degree of freedom in design is expanded.

Example 12. FIG. 28 shows claim 10 of the present invention.
FIG. 28 is a front view showing the first embodiment of the cooler for the dryer according to the invention of FIG. 7, in which the portions corresponding to the above-mentioned embodiment (FIG. 27) are designated by the same reference numerals.

The cooler of the dryer of this embodiment is a gutter 101.
The shape of A is set to a shape in which the depth increases toward one end thereof, and this one end, that is, the terminal 101a through which the condensed water 33 flows is connected to one side of the air ventilation passage 103 in which the fin 41 is installed. It is arranged on the inner wall 103a, and the other structure is the same as that of the above-mentioned embodiment (FIG. 27).

In the cooler of the dryer of this embodiment, the condensed water 33 received by the gutter 101A efficiently flows to the end 101a according to the inclination of the bottom of the gutter 101A, and the end 101a.
To the lower side along the inner wall 103a of the air ventilation path 103. For this reason, the condensed water 33 discharged is the air ventilation passage 1
It is not affected by the air flow in 03, is not blown in the direction of the cooler 102, and is efficiently drained or the subsequent drain recovery process becomes easy.

Example 13. 29 shows claim 10 of the present invention.
FIG. 29 is a front view showing a second embodiment of the cooler of the dryer according to the invention, in which parts corresponding to the above-mentioned first embodiment (FIG. 28) are designated by the same reference numerals.

The cooler of the dryer of this embodiment is the gutter 101.
The shape of B is set so that the depth increases toward both ends thereof, and both ends, that is, the respective ends 101b and 101c through which the condensed water 33 flows are both fins 4.
The inner walls 103 facing each other of the air ventilation passage 103 in which 1 is installed
a) and 103b, and other configurations are the same as those of the first embodiment (FIG. 28) described above.

In the cooler of the dryer of this embodiment, the condensed water 33 received by the gutter 101B is distributed right and left according to the inclination of the bottom part of the gutter 101B, and each end 101 is efficiently formed.
b, 101c, and from the respective ends 101b, 101c down the inner walls 103a, 103b of the air ventilation passage 103 respectively.

Therefore, also in the cooler of the dryer of this embodiment, the drained condensed water 33 affects the influence of the air flow in the air ventilation passage 103, as in the first embodiment (FIG. 28) described above. It is not received and is not blown in the direction of the cooler 102, the water is efficiently drained, or the subsequent drain recovery processing becomes easy.

Example 14. FIG. 30 shows claim 10 of the present invention.
It is a front view which shows the 3rd Example of the cooler of the dryer which concerns on this invention, In the figure, the same code | symbol is attached | subjected to the part corresponded to the above-mentioned 1st Example (FIG. 28).

The cooler of the dryer of this embodiment is the gutter 101.
The shape of C is set straight, that is, the depth is constant over the entire length, and the cooler 10 includes the gutter 101C.
2 is installed so as to be inclined in the air ventilation passage 103, and one end of the gutter 101C, that is, the end 101a through which the condensed water 33 flows is connected to the inner wall 103a of the air ventilation passage 103 on one side.
The arrangement other than that is the same as that of the first embodiment (FIG. 28) described above.

Also in the cooler of the dryer of this embodiment,
The same effects as the first embodiment (FIG. 28) described above are obtained.

Example 15. 31 shows claim 11 of the present invention.
FIG. 29 is a front view showing an embodiment of the cooler of the dryer according to the invention of FIG. 28, in which the portions corresponding to the above-mentioned embodiment (FIG. 28) are designated by the same reference numerals.

The cooler of the dryer of this embodiment is the gutter 101.
At the end 101a where the condensed water 33 of D flows, the fin 4
1 is different from that of the above-described embodiment (FIG. 28) in that it penetrates the wall 103a of the air ventilation passage 103 in which it is installed and projects it to the outside. No. 28 is the same.

The cooler of the dryer of this embodiment is the gutter 101.
Since the terminal 101a through which the condensed water 33 of D flows is set outside the air ventilation passage 103,
It can be directly discharged from 01D.

In each of the above-mentioned embodiments, an example in which the evaporator and the condenser of the heat pump mechanism are used as the cooling means and the heating means has been described as an example, but other than the invention of claim 2 The inventions of items 1 to 3 to 11 are not limited to this, and, for example, a cooling means that simply allows cold water to pass (circulate) in the pipe, and a heating means that is a sheath heater or a lamp heater is used. However, even in such a case, the intended purpose can be achieved.

[0114]

As described above, according to the first aspect of the present invention, the sealed water trap for discharging the condensed water, which is condensed and drops on the surface of the cooling means to the outside of the cooling means, outside the cooling means. Since the above structure is provided, even if either side of the inside and outside of the machine, which is the both ends of the sealing water trap, has a negative pressure, it is possible to block air from entering and exiting from the outside through the sealing water trap, and drainage becomes easy. Therefore, it is possible to prevent a decrease in moisture recovery rate and a decrease in energy efficiency, facilitate the placement of the blower, and expand the degree of freedom in design.

According to the invention of claim 2 of the present invention,
A second temperature-sensing device installed for comparison with the temperature of the air passing through the object-to-be-dried unit measured by the first temperature-sensing element arranged on the leeward side of the object-to-be-dried unit in the air ventilation passage. The element is arranged either on the leeward side of the evaporator in the air ventilation path, or outside the machine, or immediately after the condenser in the refrigerant circulation system of the heat pump mechanism and before the compressor, and the temperature of the air or the refrigerant is Since the second temperature sensitive element is not affected by the high temperature, it is possible to prevent deterioration due to the heat and a decrease in detection accuracy.

According to the invention of claim 3 of the present invention,
A cooling means is provided on the leeward side of the drying object storage part of the air ventilation path formed in a loop with the drying object storage part interposed in the middle and cooling means, heating means, and blower arranged inside. First air passage switching means for switching an air passage of the air to be passed between the dried object storage portion side and the outside of the machine is provided, and the air after passing through the heating means is provided on the windward side of the dried object storage portion. Since the second air passage switching means for switching the air passage of the device between the dried object storage portion side and the outside of the machine is provided, the air passages can be switched by these first and second air passage switching means. Switching between the two functions of drying the material to be dried and dehumidifying and drying the space where the dryer is installed can be realized very easily.

Further, according to the invention of claim 4 of the present invention,
The drying chamber and the dehumidifying unit are independent of each other, and the dehumidifying unit is configured to be movable on the floor by the supporting means, and the air supply passage and the exhaust air passage of the drying chamber are connected to the air outlet and the intake of the dehumidifying unit by the air passage connecting means. Since it is detachably connected to the mouth, it is possible to extremely easily switch between the drying of the material to be dried in the drying chamber and the dehumidification of the place (arbitrary space) where the dehumidifying unit is moved.

According to claim 5 of the present invention,
The air passage connecting means is formed on the surface of the dehumidifying unit so as to project from the surface of the dehumidifying unit, and has a rectangular cylindrical dehumidifying unit-side connection body that is defined in two spaces that are respectively connected to the air outlet and the air inlet. Each end of the air passage and exhaust air passage is inserted from one end side, the other end side extends to the set height position of the dehumidification unit side connection body, and the dehumidification unit side connection body is fitted in one side from the horizontal direction. Since the possible unit inlet is composed of a rectangular tubular drying chamber side connection body formed by cutting out from the edge on the other end side, without moving the dehumidifying unit, simply by moving it horizontally by the supporting means,
The dehumidifying unit and the drying room can be disconnected and connected.

Further, according to the invention of claim 6 of the present invention,
Guides for guiding the dehumidifying unit side connection body are provided on both sides of the opening edge of the drying chamber side connection body facing the dehumidifying unit when viewed from the unit receiving side, and the drying chamber side connection is provided at the peripheral portion of the unit receiving port. Since the lock member that can be engaged with the rear end wall of the dehumidifying unit side connection body is inserted into the body, the connection state between the dehumidifying unit and the drying chamber can be stabilized.

According to the invention of claim 7 of the present invention,
Each opening surface of the outlet and the inlet of the dehumidifying unit side connection body,
The opening faces of the air supply air passage and the exhaust air passage in the drying chamber side connecting body which are opposed to and are connected to each other are formed as slopes which can be closely attached to each other when the dehumidifying unit side connecting body is fitted into the drying chamber side connecting body. Therefore, when the dehumidifying unit and the drying chamber are connected to each other, it is possible to prevent air leakage from the connecting portion, and prevent a decrease in energy efficiency.

Further, according to the invention of claim 8 of the present invention,
The blower is arranged so that the air pressure inside the dehumidifying unit of the drain pipe becomes a negative pressure compared to the outside of the dehumidifying unit, and the drainage system has a horizontal cross-sectional shape of at least a part of the drain pipe smaller than the reference shape. Since the horizontal cross-sectional shape of the drainage system over at least the reference height above the part smaller than the reference shape is set larger than the reference shape, the drainage system collects water condensed inside the dehumidifying unit whose inside is kept at negative pressure. A water column can be formed to block the entry and exit of air through the drain pipe. In addition, the drainage of water that exceeds the standard height of the water column facilitates drainage. Therefore, it is possible to prevent a decrease in water recovery rate and a decrease in energy efficiency.

Further, according to the invention of claim 9 of the present invention,
Below the fins of the cooler, a gutter that forms a drop passage for condensed water that condenses on each fin surface by decelerating a part of the air flow that passes between the fins is arranged. As a result, the heat exchange area between the fins and the air can be easily secured, and the heat exchange efficiency can be prevented from being lowered. Therefore, the cooler can be installed at a position where the air flow flows from the lower direction to the upper direction, and the degree of freedom in design is expanded.

Further, according to the invention of claim 10 of the present invention, since the end of the gutter where the condensed water flows is arranged near the inner wall of the air ventilation passage in which the fins are installed, the subsequent drain recovery processing is performed. It will be easy.

According to the eleventh aspect of the present invention, since the end of the gutter where the condensed water flows is penetrated through the wall of the air ventilation passage in which the fins are installed, it is projected to the outside.
Drain can be discharged directly from the gutter to the outside.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a first embodiment of a dryer according to the first and second aspects of the present invention.

FIG. 2 is an explanatory diagram of temperature characteristics of the dryer shown in FIG.

FIG. 3 is a sectional view showing a second embodiment of the drier according to the first and second aspects of the present invention.

FIG. 4 is an explanatory diagram of temperature characteristics of the dryer of FIG.

FIG. 5 is a cross-sectional view showing a third embodiment of the dryer according to the first and second aspects of the present invention.

FIG. 6 is an explanatory diagram of temperature characteristics of the dryer of FIG.

FIG. 7 is a cross-sectional view showing a fourth embodiment of the dryer according to the first and second aspects of the present invention.

8 is an explanatory diagram of temperature characteristics of the dryer of FIG.

FIG. 9 is a sectional view showing a fifth embodiment of the drier according to the first and second aspects of the present invention.

10 is an explanatory diagram of temperature characteristics of the dryer of FIG.

FIG. 11 is a block diagram showing a configuration of a control unit common to the first to fifth embodiments of the dryer according to the first and second aspects of the present invention.

FIG. 12 is a cross-sectional view showing a mode of drying an object to be dried in an embodiment of the dryer according to the invention of claim 3 of the present invention.

FIG. 13 is a cross-sectional view showing an aspect at the time of dehumidifying and drying the space of the dryer of FIG.

FIG. 14 is a perspective view showing a mode of drying a material to be dried in an embodiment of the dryer according to the invention of claims 4, 5, 6, and 7 of the present invention.

FIG. 15 is a perspective view showing a mode during dehumidifying and drying the space of the dryer of FIG.

16 is an exploded perspective view showing an enlarged air passage connecting means which is a main part of the dryer shown in FIG.

FIG. 17 is a perspective view showing an assembled state of FIG.

FIG. 18 is a sectional view showing the overall configuration of a first embodiment of a dehumidifying unit for a dryer according to an eighth aspect of the present invention.

19 is an explanatory view showing an enlarged drainage system which is a main part of the dehumidifying unit of the dryer shown in FIG.

20 is an explanatory view of the movement of condensed water in the drainage system of the dehumidifying unit of the dryer shown in FIG.

21 is an explanatory diagram of the movement of condensed water in the drainage system of the dehumidifying unit of the dryer of FIG.

22 is an explanatory diagram of the movement of condensed water in the drainage system of the dehumidifying unit of the dryer shown in FIG.

FIG. 23 is an explanatory view showing a drainage system which is a main part of a second embodiment of the dehumidifying unit of the dryer according to the eighth aspect of the present invention.

FIG. 24 is an explanatory view showing a drainage system which is a main part of a third embodiment of the dehumidifying unit of the dryer according to the invention of claim 8 of the present invention.

FIG. 25 is a perspective view showing an embodiment of a cooler for a dryer according to a ninth aspect of the present invention.

FIG. 26 is a side view showing, on an enlarged scale, a fin surface part of the cooler of the dryer shown in FIG.

FIG. 27 is a front view showing, on an enlarged scale, a gutter portion of the cooler of the dryer of FIG. 25 including a partial cross-sectional view.

FIG. 28 is a front view showing a first embodiment of the cooler of the dryer according to the invention of claim 10 of the present invention.

FIG. 29 is a front view showing a second embodiment of the cooler for the dryer according to the tenth aspect of the present invention.

FIG. 30 is a front view showing a third embodiment of the cooler of the dryer according to the invention of claim 10 of the present invention.

FIG. 31 is a front view showing an embodiment of a cooler for a dryer according to an eleventh aspect of the present invention.

FIG. 32 is a cross-sectional view showing a first example of a conventional dryer.

FIG. 33 is an explanatory diagram of temperature characteristics of the dryer of FIG. 32.

[Fig. 34] Fig. 34 is a cross-sectional view showing a manner of drying an object to be dried in the second example of the conventional dryer.

FIG. 35 is a cross-sectional view showing an aspect at the time of dehumidifying and drying the space of the dryer of FIG. 34.

FIG. 36 is a sectional view showing a first example of a dehumidifying unit of a conventional dryer.

FIG. 37 is a sectional view showing a second example of the dehumidifying unit of the conventional dryer.

FIG. 38 is a perspective view showing a main part of a first example of a conventional cooler for a dryer.

FIG. 39 is a perspective view showing a main part of a second example of a conventional cooler for a dryer.

FIG. 40 is an explanatory diagram for explaining a problem at the gate of the cooler of the dryer in FIG. 39.

[Explanation of symbols]

1 dryer casing, 1a outside air inlet, 1b exhaust port, 2 compressor, 3 condenser (heating means), 4 throttling device, 5 evaporator (cooling means), 10 rotating drum (object to be dried), 14 Blower fan (blower), 14
A, 14C Blower, 22 1st thermistor (1st temperature sensing element), 23A, 23B, 23C, 23D, 23E 2nd thermistor (2nd temperature sensing element), 31 Drying chamber, 31A
Drying chamber part (storage part for dried object), 32 dehumidification unit,
32A dehumidifying unit, 33 condensed water, 34A drain pan, 35A, 35B, 35C drain pipe, 35d
Throttle part, 41 fins, 42 pipes, 51, 93, 1
03 air ventilation path, 52 sealed water trap, 53 control section (end control means), 55 storage section, 61 first damper (first air path switching means), 62 second damper (second air path switching) Means), 63a first communication port, 63b second
Communication port, 72 air supply air passage, 73 exhaust air passage, 74, 9
1 intake port, 75, 92 blowout port, 76 wheels (supporting means), 77 air passage connecting means, 78 dehumidifying unit side connecting body, 78a rear end wall, 79 unit receiving port, 81 drying chamber side connecting body, 82 guide, 84 lock members, 85, 8
6 slopes, 94 drainage systems, 101, 101A, 101B,
101C, 101D gutter, 101a, 101b, 101
c gutter end, 102 cooler, 103a, 103b
Inner wall of air ventilation passage

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical indication location F25B 39/00 F26B 21/00 E F28D 1/047 B (72) Inventor Takashi Koyama Funabashi, Chiba Prefecture 1-1-1, Ichiyamate, Japan Funabashi Co., Ltd. (72) Inventor, Yoshiaki Saruhashi 1-1-1, Yamate, Funabashi City, Chiba Nihonken Funabashi Co., Ltd.

Claims (11)

[Claims] 1. An air ventilation path which is formed in a loop shape with an article to be dried accommodating section interposed in the middle thereof, and in which a cooling means and a heating means are arranged on the leeward side thereof, and air in the air ventilation path. A fan for cooling and dehumidifying the air by the cooling means and then heating it by the heating means, and guiding it to the side of the article-to-be-dried storage part; and a surface of the cooling means, which is arranged below the cooling means. A dryer provided with a sealing water trap for discharging condensed water that has condensed and dripped at the outside of the machine. 2. An air ventilation passage formed in a loop with an article to be dried storage section interposed therebetween, and a refrigerant, which sequentially circulates through a compressor, a condenser, a throttle device and an evaporator, and the air ventilation passage. A heat pump mechanism in which the evaporator and the condenser are arranged on the leeward side of the evaporator, and air in the air ventilation path is driven to cool and dehumidify the air in the evaporator, and then in the condenser. An air blower that is heated and guided to the dried object storage section side, and is arranged on the lee side of the dried object storage section in the air ventilation passage, and measures the temperature of the air that has passed through the dried object storage section. A first temperature sensitive element, the leeward side of the evaporator in the air ventilation passage, or outside the machine;
Alternatively, a second temperature-sensitive element that is arranged in any one of immediately after the condenser and before the compressor in the refrigerant circulation system to measure the temperature of air or the temperature of the refrigerant, and the first temperature-sensitive element measured. When the difference between the temperature and the temperature measured by the second temperature-sensing element becomes substantially constant, the measured temperature difference is stored as a reference value, and the measured temperature difference exceeds a predetermined value set in advance from the reference value. And a termination control unit that terminates the drying operation. 3. An air ventilation path which is formed in a loop with an article to be dried section interposed in the middle thereof, and in which a cooling means and a heating means are arranged on the leeward side thereof, and air in the air ventilation path. A blower for driving the air to be cooled and dehumidified by the cooling means and then heated by the heating means, and guiding the air to the dried article storage section side, and the leeward of the dried article storage section in the air ventilation passage. First air passage switching means installed on the side for switching the air passage for the air toward the cooling means between the object-to-be-dried storage section side and the machine exterior side, and the object to be dried in the air-ventilation path. It is provided on the windward side of the storage portion, and is provided with a second air passage switching means for switching the ventilation passage of the air after passing through the heating means between the dried object storage portion side and the machine exterior side. Dryer. 4. An air supply air passage and an exhaust air passage are provided, and while the warm air that has been dried from the air supply air passage is introduced and exhausted from the exhaust air passage, the material to be dried and the object to be dried that are housed inside are dried. It has an independent drying chamber for contacting warm air to dry the material to be dried, an intake port and an outlet port, and is configured to be movable on the floor by a supporting means, and sucks air from the intake port for cooling. An independent dehumidifying unit that heats after dehumidifying and blows out from the air outlet, and an air passage connection that connects the air supply air passage and the exhaust air passage of the drying chamber to the air outlet and the air inlet of the dehumidifying unit in a separable manner. A drier comprising means. 5. The air passage connecting means is formed into a surface projecting from the dehumidifying unit, and has a rectangular tubular dehumidifying unit-side connecting body that is defined in two spaces, the interior of which is connected to the air outlet and the air inlet, respectively. The end portions of the air supply air passage and the exhaust air passage extending from the drying chamber are inserted from one end side, the other end side extends to the set height position of the dehumidifying unit side connecting body, and the dehumidifying unit side connecting body is provided on one side surface. 5. The dryer according to claim 4, wherein the unit receiving port that can be fitted in from the horizontal direction is composed of a rectangular-cylindrical drying chamber-side connector formed by cutting out from the edge on the other end side. 6. A guide for guiding the dehumidifying unit side connecting body is provided on both sides of the opening edge of the drying chamber side connecting body facing the dehumidifying unit when viewed from the unit receiving side, and the peripheral edge of the unit receiving port. 6. The dryer according to claim 5, wherein the portion is provided with a lock member that is engageable with a rear end wall of the dehumidifying unit side connecting body when the dehumidifying unit side connecting body is fitted into the drying chamber side connecting body. 7. The opening surfaces of the outlet and the inlet of the dehumidifying unit side connection body, and the opening surfaces of the air supply air passage and the exhaust air passage in the drying chamber side connection body which are opposed to and are connected to each other, 7. The dryer according to claim 5, wherein the dryer is formed on slopes that can be closely attached to each other when the dehumidifying unit-side connector is fitted into the drying chamber-side connector. 8. A cooling means, a heating means, and a blower are arranged from the intake side in an air ventilation path having an intake port and a blowout port and extending from the intake port to the blowout port, and below the cooling means. In a dehumidifying unit of a dryer provided with a drainage system including a drain pan for receiving condensed water that is condensed and drip on the surface of the cooling means and a drain pipe for discharging the water received in the drain pan to the outside, in the drainage system, The shape of the horizontal cross section of at least a part of the drain pipe is set smaller than the reference shape that is the maximum horizontal cross section that can be held by the water column by the action of the surface tension of water, and the horizontal cross section is smaller than the reference shape. The height of the drainage system above is set to be larger than the reference height which is the height of the water column equal to the pressure difference between both ends of the drain pipe, and the horizontal cross-sectional shape is smaller than the reference shape. A dehumidifying unit for a dryer, in which the shape of the horizontal cross section of the drainage system above the minute is set to be larger than the reference shape over at least the reference height. 9. A plurality of fins made of thin plates are laminated at intervals, and a pipe made of a thin wall pipe through which a refrigerant passes is provided so as to intersect a fin plane, and air is provided between the fins. In a cooler of a drier that cools and dehumidifies by passing, by decelerating a part of the air flow passing between the fins from the lower side to the upper side of the fin, condensed water condensed on the surface of each fin. A cooler for a dryer, which is provided with a trough extending in the fin stacking direction that forms a drop passage and receives and discharges the condensed water that is dropped. 10. The cooler for the dryer according to claim 9, wherein the end of the gutter through which the condensed water flows is arranged near the inner wall of the air ventilation passage having the fins. 11. The cooler for the dryer according to claim 9, wherein the end of the gutter through which the condensed water flows is penetrated through the wall of the air ventilation passage in which the fins are installed and is projected to the outside.