JPS58117935A - Dehumidifier - Google Patents

Abstract

PURPOSE:To enhance dehumidifying capability and air-cleaning capability, by a method wherein a variable-capacity compressor is controlled according to the humidity inside a room, intake air is dischared into the room through a dust collector, an evaporator, a condenser and a controlling part, and the condenser and the evaporator are connected to each other by a drain pan having a high thermal conductivity. CONSTITUTION:By operating the compressor 12 and a blower 10, air is cleaned of dusts by an air filter 3 and an electric dust collector 5, and is dehumidified by the evaporator 6. Then, air is reheated by the condenser 7, and is discharged while cooling the controlling part 11. At this time, the controlling part 11 detects the humidity inside the room through a humidity sensor, and regulates the capacity of the compressor 12 in accordance with the humidity. The heat of the condenser 7 is transmitted to the evaporator 6 through the drain pan 8, whereby freezing at the evaporator 6 is prevented and defrosting time is shortened. Accordingly, the dehumidifying capacity can be enhanced, room air can be cleaned, and cooling safety of electric component parts can be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention provides a dehumidifier for dehumidifying sucked air by passing it through an evaporator, and reheating the dehumidified air by passing it through a condenser before discharging it.

Technical Background of the Invention In general, in this type of dehumidifier, when the intake air temperature decreases, frost forms on the evaporator, leading to a decrease in the dehumidifying ability.

Therefore, a bypass path is provided between the refrigerant discharge of the compressor and the refrigerant suction of the evaporator, and a two-way valve is installed in this bypass path. There are some cases in which a box-removal meeting is held.

However, in this case, as a matter of course, no dehumidification is performed while dehumidification Ii' is being performed, resulting in a decrease in the performance of the dehumidifier.

On the other hand, dehumidifiers are often used in airtight environments, so the air is often contaminated, especially in libraries where a large number of people gather. It is necessary to provide adequate ventilation.

However, when ventilation is performed, moisture flows in, making it impossible to obtain a dehumidifying effect. There are disadvantages such as adhesion to internal electrical parts AK, lowering the absolute resistance of electrical parts, or adhesion to operating mechanisms, resulting in malfunction.9.

Purpose of the invention This invention was made in view of the above circumstances.
The purpose of this is to be able to measure the improvement of dehumidification capacity and to purify the indoor air, thereby eliminating the need for indoor ventilation and measuring the improvement of the dehumidification effect by t%. An object of the present invention is to provide an excellent dehumidifier T-III which also makes it possible to improve the safety of electrical parts and the like.

Summary of the Invention The present invention not only performs temperature control by controlling the capacity of a compressor according to the humidity in the room, but also removes dust contained in the inhaled air. The control section is cooled by air, and the heat from the condenser and reactor is transferred to the evaporator.

Embodiment of the Invention Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In FIGS. 1(a) and 1(b), 1 is a main body, and an air inlet 2 is formed at one end of the main body 1, and an air outlet 3 is formed at the other end. The suction port 2 is provided with an air filter 4 for removing dust. Then, an electric dust collector 5. is installed in the main body 1 corresponding to the suction port 2. An evaporator 6° and a condenser 7 are arranged in sequence. These electric industry m machines5. Evaporator F7. The lower part of the condenser 7 is in contact with a drain plug 8 provided in the main body 1 from near the suction port to approximately the center. The drain pan 8 is made of a material with good thermal conductivity, and can not only receive the water droplets adhering to and falling from the evaporator 6, but also the condenser II, which is a high-pressure side member of the Tsumatsuma-san refrigeration cycle. It also has the function of transmitting the heat of 7 to the evaporator 6. In addition, Drennon 8
A reactor 9 with a high heat capacity is attached to the reactor 9. Therefore, the condenser 1 is located approximately in the center of the main body 1.
A blower 10 is provided opposite to. This ventilation pattern 10 is based on the air filter 4. Electrostatic precipitator 5. Evaporator6. Condenser 7
Indoor air is sucked into the main body 1 through the main body 1, passes through a control section 11 provided above the rear end of the main body 1, and then is discharged into the room through the exhaust port 3. Also,
A variable capacity compressor 12 is provided on the rear end side of the main body 1 . The compressor 12d is sequentially connected to the evaporator 6, condenser, etc., thereby forming a refrigeration cycle.

FIG. 2 shows the control section 11 mentioned above. That is, the control unit 11
is from a converter 21 connected to the power supply 20 via the reactor g, an inverter 23 to which the DC output of this converter 21 is supplied via a smoothing capacitor t21, a printed circuit board 24 that performs switching control of this inverter 23, etc. Become. This printed circuit board 24
A humidity sensor 25 is connected to the inverter 2, and the inverter 2 is activated by the operation of the printed circuit board 24 according to the indoor humidity.
3 is subjected to switching control, and the drive motor 12M of the compressor 12 is driven by this inverter 23.

Next, the operation in the above configuration will be explained. Now, when you turn on the operation switch (not shown), compressor 1
2 and the blower 10 start operating. In this way, dust is first removed from the air sucked into the main body 1 by the air filter, and further fine dust is removed by the electrostatic precipitator IA5.

The air from which dust has been removed is dehumidified by the evaporator 6, cooled by the condenser 7, and is then discharged.

At this time, the control unit 11 detects the indoor humidity with the humidity sensor 25, and controls the inverter 23 according to the detected humidity.
By performing switching control, the pressure 18m12 is operated at a low capacity (previously normal capacity) when the humidity is low, and the compressor 12 is operated at a high capacity when the humidity is high. In other words, optimal dehumidification depending on the situation is possible.

Further, during operation, the heat of the condenser 7 is transferred to the evaporator 6 via the drain pan 8, thereby preventing freezing in the lower part of the evaporator 6, and reducing the defrosting operation time during the defrosting operation. The dehumidification capacity can be improved. Moreover, in this case, the temperature of the reactor 9 rises to about 60°C, and the high temperature of the reactor 9 is also caused by the drain pan 8.
Since it is transmitted to the evaporator ε via the evaporator ε, the dehumidifying ability can be further improved.

By the way, when the frost on the evaporator 60 reaches a certain level or a certain period of time has passed since the start of operation, the refrigeration cycle changes to a defrosting cycle and the defrosting operation is started. Then, the amount of dehumidification decreases, which is detected by the control unit 11 and the compressor 12 enters high capacity operation. This improves the defrosting ability, allowing the defrosting operation to end in a short time and returning to dehumidifying operation, and when combined with the heat conduction provided by the drain pan mentioned above, the dehumidifying ability can be significantly improved. .

On the other hand, when the indoor air passes through the main body 1, dust is not removed, which not only makes the indoor air cleaner (air purification), but also increases the dehumidification effect because the number of ventilations is reduced as much as possible. can.

In addition, the control unit 11 handles a large amount of electric power to drive the compressor 12, and various electrical components gradually generate heat as the operation progresses. In this case, the output is 6kV
If the temperature is AQ, the amount of heat generated will be 150 to 300 W, which is extremely dangerous for general electrical parts whose upper limit temperature is about 85°C. In particular, various semiconductor elements are used in the inverter 23 and the glint circuit board 24, which poses even more danger. However, as mentioned above,
By passing the discharged air through the control section 11, the control section 11f can be efficiently cooled, and the above-mentioned dangers can be avoided. Moreover, since dust is removed from the air passing through the control unit 11 using the air filter 4, and even finer dust is removed using the electric precipitator 5, there is no possibility of dust adhering to the electrical components (4IKjllk conductor elements). It is possible to prevent problems such as a decrease in insulation resistance and failures. In addition, there is no dust adhesion to the various operating mechanisms within the main body 1, and stable operation is possible.

In the above embodiment, the condenser 1 is brought into contact with the drain pipe, but any other material such as a cold pipe may be used as long as it is a high-pressure side member of the refrigeration cycle, and both the refrigerant pipe and the condenser may be brought into contact with each other. You can do it like this.

In addition, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without changing the gist.

Effects of the Invention As described above, according to the present invention, it is possible to improve the dehumidification ability, and also to purify the indoor air. It is an object of the present invention to provide an excellent dehumidifier that can be used to remove needles and improve the safety of internal electrical components.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1(a)
, (b) is an overall schematic configuration diagram, (1) is a diagram seen from above, (b) is a diagram seen from the top, and Figure 2 is a circuit diagram specifically showing the control section. . 1...Main body, 2...Air suction port, 3...Air filter, 5...Electrostatic precipitator, C...Evaporator, r...
Ko JI & 8...Dre/Nogun, 9--Reactor, 10
-...Blower, 11...Control unit, 12...Compressor. Applicant's agent Patent attorney Takehiko Suzue Figure 1 (a) Figure 2

Claims (1)

[Claims] A refrigeration cycle in which a variable capacity compressor, an evaporator, a condenser, etc. are connected in sequence, and a thermally conductive mechanism provided in contact with the lower part of the evaporator and the high-pressure side member of the refrigeration cycle, respectively. a drain pan, a control section that includes an inverter that drives the compressor and controls the capacity of the compressor according to indoor humidity; A reactor with a high heat capacity attached, an air blower that sucks indoor air into a pipe through the evaporator and condenser, and then passes it through the control unit and exhausts it into the room; and electricity that removes dust from the air in the stone room that is drawn in by the blower. A dehumidifier that is fully equipped with a dust collector.