JPH06229580A - Dehumidifier - Google Patents

Abstract

PURPOSE:To reduce the number of parts, perform washing of a drain tank and prevent the occurrence of malfunction. CONSTITUTION:A dehumidifier 1 is provided with a weight detecting device 16 arranged to the lower part of a drain tank 12. A memory circuit 23 to store four weight regions consisting of a region where a drain tank is not mounted, a region where the drain tank is empty, a region where dehumidified water is capable of being drained, and a region where the tank is full of water, and a deciding circuit 22 are connected to the weight detecting device 16.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a dehumidifier.

[0002]

2. Description of the Related Art Conventionally, the structure of a dehumidifying water treatment route of this type of dehumidifier will be described with reference to the drawings.

In FIG. 4, a dehumidifier main body 1 is composed of a suction grill 2 made of synthetic resin, an outer box 3 and a blowout grill 4, and a compressor 5, a condenser 6 and a capillary tube 7 constituting a refrigeration cycle inside. , Evaporator 8 and fan motor 9
And a fan 10. Then, the air is sucked from the front surface of the intake grill 2 by the fan 10, passes through the evaporator 8 and the condenser 6, and is blown out from the blowout grill 4.

Reference numeral 11 denotes a base plate, which is screwed to the lower portions of the intake grill 2 and the outer case 3 and has a structure for supporting the compressor 5, the drain tank 12 and a partition wall 13 separating them.

In the drainage tank 12, there is provided a float 27 in which the periphery of the polystyrene foam is covered with resin. The tip of the float 27 is in contact with the microswitch 28. The dehumidified water condensed by the evaporator 8 is the water pan 1
4 accumulates in the drainage tank 12 through the drain port 15 of the water receiving tray 14. When the amount of dehumidified water accumulated in the drainage tank 12 increases, the tip of the float 27 deviates from the micro switch 28 to stop the operation of the dehumidifier. Further, a projection 29 is formed on the substrate 11 for positioning the drainage tank 12.

FIG. 5 illustrates the structure of the conventional dehumidifier when the dehumidified water condensed by the evaporator 8 is continuously discharged to the outside of the dehumidifier to save the waste of the water in the drain tank 12. In this case, the drain hose 31 passes through the hole 30 opened in the outer box 3 and the drain port 15 of the water receiving tray 14 is opened.
It is connected to and the dehumidified water is continuously discharged out of the machine. At this time, the drain tank 12 is set at a predetermined position because the tip of the float 27 needs to keep pressing the microswitch 28.

[0007]

However, in the above-mentioned structure, since an unreasonable force is applied to the contact between the float 27 in the drain tank 12 and the micro switch 28, the failure or malfunction of the micro switch 28 is prevented. The positioning of the tank 12 was achieved by forming a slight protrusion 29 on the substrate 11, but the storage space is made larger than the outer circumference of the drain tank 12, and the drain tank 12 may be displaced from the protrusion 29 by a slight impact. , Drainage tank 12
Since the protrusions 29 are small in the feel of wearing the item, individual differences are likely to occur.

The microswitch 28 operates by mechanical contact, but if the lever displacement exceeds a specified value, it may be damaged. The storage space of the drainage tank 12 is assembled by using three parts of the water tray 14, the partition wall 13, and the outer box 3 as a skeleton, and it is difficult to obtain the assembly accuracy as a space.
In order to surely bring the tip of the float 27 into contact with the microswitch 28 by a predetermined size, it is necessary to control the cumulative value of the manufacturing accuracy of the skeleton part, which makes assembly difficult.

Further, since the float 27 is attached to the drain tank 12, not only the drain tank 12 cannot be cleaned, but also the float 27 may be damaged or deformed due to a disorderly action during drainage work, resulting in malfunction. It was

Also for displaying the water level of the dehumidified water, a tube provided with a water entry port (lower part of the tube) is provided in the drainage tank 12, beads (not shown) are put therein, and the dehumidified water is drained from the drainage tank 12. The beads floated when entering from the entry port at the bottom of the accumulation tube, and the water level of the dehumidifying water was determined by the floating condition of the beads. But,
Since the drainage tank 12 cannot be washed, there is a problem that the water level of the dehumidifying water becomes difficult to see due to stains on the surface of the cylinder containing the beads.

The present invention solves the above-mentioned problems of the prior art by accurately detecting that the drainage tank 12 is full and maintaining the detection accuracy even when the drainage tank 12 is detached and attached shockably. In addition to providing the means that can be achieved, it is possible to reduce the number of parts by eliminating the float, to clean the drainage tank 12, prevent malfunction, and to grasp the weight of dehumidified water in the drainage tank 12, and to realize the conventional structure. The purpose of the present invention is to provide means capable of displaying different dehumidified water weights in drainage tanks.

[0012]

In order to solve the above-mentioned problems, the present invention provides a weight detection device at the bottom of a drainage tank, and the weight region detected by the weight detection device is used as a drainage tank without drain tank empty / drain of dehumidified water. A storage circuit is provided for storing the weight region by dividing it into four regions of possible and full.

Further, according to the present invention, when a weight change within a unit time by the time counter exceeds a predetermined rate of change, the weighing is stopped without outputting a signal, and the weighing is performed after a lapse of the predetermined time. Is provided, and a determination circuit that outputs a detection signal of full water when a certain weight is exceeded is provided.

Further, according to the present invention, the weight detection device detects the weight change of the dehumidified water, and the storage circuit for storing the four weight regions and the judgment circuit display the process of filling the dehumidified water in the drain tank in detail. A weight display device is provided.

[0015]

The operation of the above means is as follows.

According to claim 1, not only the detection accuracy of the full water detection can be maintained in consideration of the error in the weight of the drainage tank that occurs during molding, but the weight of the dehumidified water in the drainage tank can be grasped in detail (the dehumidified water). It is possible to grasp the process until full water). Also, by eliminating the float from the drain tank, it is possible to reduce the number of parts, clean the drain tank, and prevent malfunction.

According to the second aspect, it is possible to prevent malfunctions due to changes in the weight of the drainage tank that occur when the drainage tank is taken in and out, the dehumidifier is carried around, etc. Not only can the detection accuracy be maintained, but the weight of dehumidified water in the drainage tank can be accurately ascertained.

According to the third aspect, the weight change of the dehumidified water in the drainage tank can be easily displayed by means different from the conventional one.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A dehumidifier according to an embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, a dehumidifier main body 1 is composed of a suction grill 2 made of synthetic resin, an outer box 3 and a blowout grill 4, and a compressor 5, a condenser 6 and a capillary tube 7 constituting a refrigeration cycle inside. , Evaporator 8 and fan motor 9
And a fan 10. Then, the air is sucked from the front surface of the intake grill 2 by the fan 10, passes through the evaporator 8 and the condenser 6, and is blown out from the blowout grill 4.

Reference numeral 11 denotes a base plate, which is screwed to the lower portions of the intake grill 2 and the outer case 3 and has a structure for supporting the compressor 5 drain tank 12 and the partition wall 13 separating them.

At the lower part of the drainage tank 12, a weight detection device 1
6 is provided. The dehumidified water condensed by the evaporator 8 collects in the water pan 14 and the drain port 1 of the water pan 14
It is transmitted from 5 and accumulated in the drainage tank 12. When the dehumidified water accumulated in the drainage tank 12 increases, the weight detection device 16 detects the dehumidified water weight in the drainage tank by the storage circuit 23 and the determination circuit 22 in FIG. The weight display device 25 displays the dehumidified water weight in the drainage tank.

Next, a dehumidifying water weight detection mechanism will be described with reference to FIGS. 2 and 3. FIG. 2 is a control circuit configuration diagram, and FIG. 3 is a flowchart for detecting the weight of dehumidified water in the drain tank. As shown in the figure, the storage circuit 23 stores four regions (weights) having fixed widths. The first area is a weight area when the drainage tank is not set in the dehumidifier, and when the weight detected by the weight detection device 16 is within this area by the determination circuit 22 (step 101). ), The immediate output relay circuit 26 is turned off
The dehumidifier stops operating. (Step 102) The second area is a weight area when the drain tank is empty, and the third area is a weight area determined to be on the way to full filling. The weight detected by the weight detection device 16 is 2
When the determination circuit 22 determines that the dehumidified water is in one area (steps 105 and 106), the weight display device 25 displays the dehumidified water weight in the drain tank (step 10).
8) The operation of the dehumidifier will not be stopped unless it is controlled by others. The fourth region is a weight region in which the dehumidified water in the drainage tank is determined to be full, and when the determination circuit 22 determines that the weight detected by the weight detection device 16 is within this region ( In step 103), full water detection control is performed, the immediate output relay circuit 26 is turned off, and the operation of the dehumidifier is stopped (step 104).

Regarding the timing of weight detection by the weight detection device 16, when the weight change per unit time exceeds the predetermined weight change rate (step 107), the drainage tank is taken in and out, the dehumidifier is carried, and the like. We judge that it is the cause of the weight change (we do not consider it to be an increase in dehumidified water), and even if the weight at that time is within the weight range of full water, the signal for full water detection is not issued and weighing is stopped for a fixed time. It is assumed that the measurement is restarted after the lapse of time (steps 109 and 110).

Although the dehumidifier using the dehumidifying refrigeration cycle has been described in this embodiment, the same effect can be obtained with another dehumidifying system, for example, a dehumidifier having a dehumidifying water treatment route such as a Peltier type electronic cooling dehumidifying system. be able to.

[0026]

The effects of the above means are as follows.

The weight region detected by the weight detection device is divided into four regions, that is, the drainable tank empty / dehumidified water can be drained and the other is full, and the weight circuit stores the weight region and the weight value obtained by the weight detection device causes drainage. By having a means for detecting the presence or absence of a tank and the weight of dehumidified water in the drainage tank, not only can the detection accuracy of full water detection be maintained after considering the error in the weight of the drainage tank that occurs during molding,
A detailed grasp of the dehumidified water weight in the drainage tank (a grasp of the process until the dehumidified water is filled up) is possible. Also, by eliminating the float from the drain tank, it is possible to reduce the number of parts, clean the drain tank, and prevent malfunction.

When the weight detection device, the time counter, and the weight change within the unit time by the time counter exceed the predetermined rate of change, the weighing is stopped without outputting a signal, and the weighing is restarted after the lapse of the predetermined time. However, by having a judgment circuit that outputs a detection signal of full water when a certain weight is exceeded,
Not only can it prevent malfunctions due to changes in the weight of the drainage tank that occur when the drainage tank is taken in and out, or when the dehumidifier is carried around, etc. It is possible to accurately grasp the weight of dehumidified water in the drainage tank.

A weight display device for detecting the weight change of the dehumidified water by the weight detection device and for displaying in detail the process of filling the dehumidified water in the drain tank with the memory circuit and the judgment circuit for storing the four weight regions. By having it, the weight change of the dehumidified water in the drainage tank can be easily displayed by means different from the conventional one.

[Brief description of drawings]

FIG. 1 is a side sectional view of a dehumidifier according to an embodiment of the present invention.

FIG. 2 is a control configuration diagram of a dehumidified water weight detection mechanism of the dehumidifier.

FIG. 3 is a flowchart of a dehumidified water weight detection mechanism of the dehumidifier.

FIG. 4 is a side sectional view of a conventional dehumidifier.

FIG. 5 is a side sectional view of the dehumidifier when using a drain hose.

[Explanation of symbols]

 5 Compressor 6 Condenser 8 Evaporator 10 Blower 12 Drainage tank 16 Weight detection device 23 Memory circuit 20 Hours counter 22 Judgment circuit 25 Weight display device

Claims (3)

[Claims] 1. A drainage tank for collecting dehumidified water discharged from a refrigeration cycle including a compressor, a condenser, an evaporator, a blower, and the like, and a weight detection device for detecting the weight of the dehumidified water,
The weight area detected by the weight detection device is divided into four areas: no drain tank, empty drain tank, dehumidified water that can be drained, and full water, and a memory circuit that stores the weight area and the weight value obtained by the weight detection device. , A dehumidifier having means for detecting the presence or absence of a drainage tank and the weight of dehumidified water in the drainage tank. 2. A weight detection device, a time counter, and when the weight change per unit time by the time counter exceeds a predetermined rate of change, the weighing is stopped without outputting a signal, and after a predetermined time has elapsed. The dehumidifier according to claim 1, further comprising a determination circuit that restarts weighing and outputs a detection signal of full water when a certain weight is exceeded. 3. A weight display for detecting a weight change of dehumidified water by a weight detection device, and a storage circuit for storing four weight regions and a judgment circuit for displaying in detail the process until the dehumidified water in the drain tank is filled up. The dehumidifier according to claim 1, further comprising a device.