KR102371758B1 - Constant Temperature Chamber - Google Patents

Abstract

The present invention relates to a constant temperature device which comprises: a chamber storing an object requiring constant temperature maintenance; a first air conditioning chamber provided on one side of the chamber to allow air for controlling temperature to circulate to the chamber; and a second air conditioning chamber provided on the other side of the chamber to allow the air for controlling temperature to circulate the chamber. The first air conditioning chamber and the second air conditioning chamber are alternately operated to prevent an icing phenomenon and constantly maintain predetermined temperature.

Description

Constant Temperature Chamber {Constant Temperature Chamber}

The present invention relates to an apparatus for maintaining constant temperature (low temperature), and more particularly, to a constant temperature (low temperature) maintaining device, which can prevent moisture contained in circulating air circulating in the chamber to always be kept at a low temperature and to prevent it from forming dripping by attaching to the evaporator ) to the holding device.

In general, a thermo-hygrostat is a device used to always maintain the set temperature and humidity. It is a device that prevents malfunction of the device and enables stable mission performance.

In particular, the test process precedes the development of a prototype, the experiment of various parts, and the manufacture of a new drug or new material, etc. The test process can be carried out by exposing the sample to an artificially created experimental environment.

A sealed thermostatic device is used to create an experimental environment, to block from the outside, and to test samples more safely.

The constant temperature device includes a door that allows access to the experiment space in the chamber, and an experiment environment creation module that creates an experiment environment by controlling the temperature and humidity of the experiment space. The experimental environment creation module is constructed using a heating device made of heating wire, a circulation device made of a fan, etc., a humidifier device, a condenser that controls the temperature by phase change of the working fluid, an evaporator, etc. can be composed.

이하의 저온 유지를 목적으로 하는 항온 장치는 일반적인 저온(0

이하)구동 챔버에서는 냉동기와 히터를 이용하여 챔버내 온도를 일정하게 유지하는 것이 목적이다.In particular, 0

The thermostat for the purpose of maintaining the following low temperature is a general low temperature (0

Hereinafter) The purpose of the driving chamber is to maintain a constant temperature in the chamber by using a refrigerator and a heater.

At this time, the low-temperature refrigerant is sent from the refrigerator to the evaporator to lower the temperature. Evaporator is always at low temperature, and moisture in the circulating air attaches to the Eva, causing a freezing phenomenon. and the temperature distribution is also unbalanced.

To prevent the evaporator from freezing, defrosting must be performed at regular intervals by supplying hot gas to the evaporator or by heating the evaporator with a heater to melt it.

The conventionally known defrosting technology is mainly applied in the case of using a reverse cycle for applying heat, and in addition to this, a method using hot gas, a method using a heater, a method using gas injection, a method using a coil spray There are methods and methods using geothermal heat, but there is a problem in that the defrosting cannot be prevented at the source and the defrosted ones are removed through heat, which is inefficient.

In addition, when the defrosting is performed, the temperature in the chamber rises for a predetermined time, so there is a problem that the accurate management of objects stored in the chamber may be insufficient.

On the other hand, the above-mentioned background art is technical information that the inventor possessed for the purpose of derivation of the present invention or acquired during the derivation process of the present invention, and it cannot be said that it is necessarily known technology disclosed to the general public before the filing of the present invention. .

Korean Patent Registration No. 10-0653235

One aspect of the present invention provides a constant temperature (low temperature) maintenance device that can prevent moisture contained in the circulating air circulating in the chamber to always be kept at a low temperature in the chamber and from being dripped by adhering to the evaporator.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

A thermostatic apparatus according to an embodiment of the present invention includes: a chamber in which an object requiring constant temperature maintenance is accommodated; a first air conditioning chamber provided at one side of the chamber to circulate air for temperature control to the chamber; and a second air conditioning chamber provided on the other side of the chamber to circulate air for temperature control to the chamber.

The first air conditioning room and the second air conditioning room,

an air outlet and an air inlet communicating with the chamber;

a heater for increasing the temperature of the air supplied to the chamber;

an evaporator for lowering the temperature of the air supplied to the chamber;

a blowing fan for supplying the air whose temperature is controlled by the heater and the evaporator to the chamber through the air outlet;

a driving motor for driving the blowing fan;

a supply damper installed at one side of the air outlet to open and close the air outlet; and

and a recovery damper installed at one side of the air inlet to open and close the air inlet.

The thermostat device,

Further comprising a control unit for controlling the operation mode of the first air conditioning room and the second air conditioning room,

The control unit is

Alternately operating the first air conditioning room and the second air conditioning room,

When the first air conditioning chamber is operated, the supply damper and the recovery damper provided in the second air conditioning chamber are controlled to close the air outlet and the air inlet formed in the second air conditioning chamber, while the supply damper provided in the first air conditioning chamber and controlling the recovery damper to open the air outlet and air inlet formed in the first air conditioning room;

When the second air conditioning chamber is operated, the supply damper and the recovery damper provided on the first air conditioning chamber side are controlled to close the air outlet and the air intake port formed in the first air conditioning chamber, while the supply damper provided on the second air conditioning chamber side and controlling the recovery damper to open the air outlet and the air inlet formed in the second air conditioning chamber.

According to the above-described aspect of the present invention, two air conditioning chambers are alternately operated to defrost the evaporator of an air conditioning chamber that has not been operated while one air conditioning chamber is operating to prevent freezing of the air conditioning chamber and always constant without stopping the operation of the temperature control device The chamber temperature can be maintained.

1 is a diagram showing a schematic configuration of a thermostatic device according to an embodiment of the present invention.
FIG. 2 is a view showing a detailed configuration of the first air conditioning room shown in FIG. 1 .
3 is a view showing a detailed configuration of the second air conditioning room shown in FIG. 1 .
4 and 5 are diagrams for explaining a function in which the first air conditioning room and the second air conditioning room operate alternately.
6 and 7 are diagrams illustrating a detailed configuration of the damper control unit.
8 and 9 are views showing a detailed configuration of the defrost and humidifier discharge unit.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0010] Reference is made to the accompanying drawings, which show by way of illustration specific embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein with respect to one embodiment may be implemented in other embodiments without departing from the spirit and scope of the invention. In addition, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the following detailed description is not intended to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all scope equivalents to those claimed. Like reference numerals in the drawings refer to the same or similar functions throughout the various aspects.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

1 is a conceptual diagram illustrating a schematic configuration of a constant temperature (low temperature) maintaining device (hereinafter referred to as a constant temperature device) according to an embodiment of the present invention.

The thermostatic device according to the present invention is provided with a function to prevent moisture contained in the circulating air circulating in order to maintain a constant temperature inside the chamber from adhering to the evaporator and becoming dripping.

Specifically, the thermostatic device according to an embodiment of the present invention includes a chamber 100 in which an object requiring constant temperature maintenance is accommodated, a first air conditioning chamber 200 provided at one side of the chamber to circulate air for temperature control to the chamber, and and a second air conditioning chamber 300 provided on the other side of the chamber to circulate air for temperature control to the chamber.

FIG. 2 is a view showing a detailed configuration of the first air conditioning room shown in FIG. 1 .

Specifically, the first air conditioning chamber 200 includes an air outlet 210 and an air inlet 220 communicating with the chamber 100 , a heater for increasing the temperature of the air supplied to the chamber 100 , and air supplied to the chamber. A temperature control unit 230 including an evaporator for lowering the temperature of a driving motor 250 to make the air inlet 210, a supply damper 260 installed at one side of the air outlet 210 to open and close the air outlet, and a recovery damper 270 installed at one side of the air inlet 220 to open and close the air outlet. include

The supply damper 260 has one end hinged to one side of the air outlet and rotates, and the recovery damper 270 has one end hinged to one side of the air inlet and rotates to open and close the air outlet and the air inlet.

3 is a view showing a detailed configuration of the second air conditioning room shown in FIG. 1 .

Specifically, the second air conditioning chamber 300 includes an air outlet 310 and an air inlet 320 communicating with the chamber 100 , a heater for increasing the temperature of the air supplied to the chamber 100 , and air supplied to the chamber. A temperature control unit 330 including an evaporator for lowering the temperature of A drive motor 350 to make the air inlet 310, a supply damper 360 installed on one side of the air outlet 310 to open and close the air outlet, and a recovery damper 370 installed on one side of the air inlet 320 to open and close the air outlet. include

The supply damper 360 has one end hinged to one side of the air outlet and rotates, and the recovery damper 370 has one end hinged to one side of the air inlet and rotates to open and close the air outlet and the air inlet.

As such, the first air conditioning chamber and the second air conditioning chamber have the same structure, and hereinafter, for convenience of explanation, an air outlet 210, an air inlet 220, a temperature control unit 230 provided on the side of the first air conditioning chamber are provided. The blowing fan 240, the driving motor 250, the supply damper 260 and the recovery damper 270 are connected to the first air outlet 210, the first air inlet 220, the first temperature controller 230, and the second 1 The blower fan 240, the first drive motor 250, the first supply damper 260, and the first recovery damper 270 will be defined and described, and the air outlet 310 provided on the side of the second air conditioning room. , the air intake 320, the temperature control unit 330, the blowing fan 340, the driving motor 350, the supply damper 360 and the recovery damper 370 are connected to the second air outlet 310, the second air inlet 320 , the second temperature control unit 330 , the second blowing fan 340 , the second driving motor 350 , the second supply damper 360 , and the second recovery damper 370 will be defined and described. do.

On the other hand, the constant temperature device according to the present invention is provided with two air-conditioning rooms, the air-conditioning room is installed in two ways to operate any one air-conditioning room and change the operation of the air-conditioning room every set time. At this time, the Eva in the air conditioning room that is not in operation waits as it melts, and after a period of time, the operation of the air conditioning room is changed and operated again.

To this end, the thermostat according to the present invention further includes a controller (not shown) for controlling the operation modes of the first air conditioning chamber 200 and the second air conditioning chamber 300 .

The control unit alternately operates the first air conditioning chamber and the second air conditioning chamber. For example, the controller alternately operates the first air conditioning chamber 200 and the second air conditioning chamber 300 at a preset time interval (eg, 2 hours). That is, the control unit allows temperature control to be performed in the first air conditioning room for the first 2 hours, and allows temperature control to be performed in the second air conditioning room for the next 2 hours.

At this time, as shown in FIG. 4 , when the first air conditioning chamber is operated, the controller controls the second supply damper and the second recovery damper provided on the side of the second air conditioning chamber to control the second air outlet formed in the second air conditioning chamber and The second air inlet is closed, and the first supply damper and the first recovery damper provided on the side of the first air conditioning chamber are controlled to open the first air outlet and the second air inlet formed in the first air conditioning chamber.

Accordingly, the temperature-controlled air in the first air conditioning chamber is discharged through the first air outlet and circulates inside the chamber to maintain the internal temperature of the chamber at a set temperature, and the air circulated inside the chamber is discharged through the first air inlet through the first air inlet. It flows into the air conditioning room and the temperature is controlled. At this time, the ice formed on the surface of the evaporator provided in the temperature controller 330 of the second air conditioning room that is not in operation is melted and the defrosting is performed.

Thereafter, when the second air conditioning chamber is operated while the operation of the first air conditioning chamber is stopped after a preset time has elapsed, the control unit controls the first supply damper and the first recovery damper provided on the side of the first air conditioning chamber as shown in FIG. 5 . controls to close the first air outlet and the first air inlet formed in the first air conditioning room, and a second supply damper and a second recovery damper provided on the side of the second air conditioning chamber include an air outlet formed in the second air conditioning chamber and Control the air intake to open.

Accordingly, during the time that the second air conditioning chamber is operating, the temperature-controlled air in the second air conditioning chamber is discharged through the second air outlet and circulates inside the chamber to maintain the internal temperature of the chamber at a set temperature, and the air circulated inside the chamber is The temperature is controlled by flowing into the second air conditioning chamber through the second air inlet. At this time, the ice formed on the surface of the evaporator provided in the temperature controller 230 of the first air conditioning room that is not in operation is melted and the defrosting is performed.

As described above, the thermostatic device according to the present invention operates two air conditioning chambers alternately to defrost the evaporator of the air conditioning chamber that has not been operated while one air conditioning chamber is in operation, thereby preventing the air conditioning chamber from dripping while always constant without stopping the operation of the temperature control device. The chamber temperature can be maintained.

In some other embodiments, in the thermostatic device according to the present invention, when the first and second air conditioning rooms are alternately operated, the supply damper and the recovery damper control the opening and closing angles of the air outlet and the air inlet while controlling the opening and closing. It may further include a damper control unit for damping the generated shock.

5 is a diagram illustrating a detailed configuration of a damper control unit.

The damper control unit shown in FIG. 5 is installed in the second supply damper 360 installed on the side of the second air outlet 310 connecting the second air conditioning chamber 300 and the chamber, and is installed on one side of the second supply damper 360 . The damper coupling part 610 is installed, an opening is formed in the upper part, the movable part 620 slidingly moves along the guide rail g formed on the inner wall of the chamber, and the elastic member installed on the bottom surface of the movable part 620 ( 630) and one end are hinge-coupled to the damper coupling unit 620, and the other end is inserted and installed inside the moving unit through an opening formed in the moving unit and coupled with the elastic member 630 to provide an elastic force to the damper coupling unit 620. It includes a connection unit 640 that is.

A pinion gear is formed in the lower portion of the moving unit 620 as shown, and a rack gear is formed on the guide rail g formed on the inner wall of the chamber, and the pinion gear moves in the left and right direction while the rack gear is engaged with the rack gear. It can slide along the rail (g).

As shown in FIG. 6, when the second supply damper 360 rotates and the second air outlet is opened, as shown in FIG. 6, in the damper control unit, the moving unit 620 is pushed to the left by the rotational force and the connecting unit 640 is moved. The elastic member 630 may be contracted by being further inserted inside the part 620 . At this time, even if the second supply damper 360 is rotated excessively due to a malfunction, etc., while restricting rotation beyond the opening angle preset by the control unit, by providing an elastic force to the second supply damper 360 through the elastic member, the damper damage can be prevented.

In some other embodiments, the constant temperature device according to the present invention may further include a defrost-humidifier discharge unit installed on the bottom surfaces of the first and second air conditioning rooms to collect the falling water generated during the defrosting process and discharge it in a certain direction. can

9 and 10 are diagrams showing the specific configuration and function of the dehumidifier discharge unit 500 according to an embodiment of the present invention.

As shown, the bottom surfaces of the first air conditioning room and the second air conditioning room have an inclined surface that decreases in height toward the center, and in the center of the bottom surface of the first air conditioning room and the second air conditioning room, a concave in which water that has fallen on the inclined surface is collected. A groove portion 410 is formed, and a U-shaped collecting portion 420 for collecting moisture falling into the concave groove portion 410 is provided at a lower portion of the concave groove portion 410 .

The dehumidifier discharge unit 500 is installed in the concave groove portion 410 to transfer the moisture collected in the collection unit 420 in a predetermined direction.

Specifically, the dehumidifier discharge unit 500 includes a main body 510 , a pair of rotary motors 520 formed at both ends of the main body 510 , a drive shaft of the rotary motor 520 and the main body 510 . It is composed of a rotation shaft 530 for connecting and a connection part 540 installed on each of the rotation motor 520 .

That is, the dehumidifier discharge unit 500 prevents the main body 510 from rotating clockwise or counterclockwise by the driving force of the rotating motor 520 in a state where both ends are installed on the inner wall of the foreign material receiving unit 400 . characterized.

At this time, around the outer peripheral surface of the main body 510, the blowing blades 512 are installed at predetermined intervals to rotate together as the main body 510 rotates, and in this process, a plurality of suction holes 511 formed on the outer peripheral surface of the main body 510 ) to suck the outside air into the body 510 through the.

In addition, a blowing slit 513 is formed on the surface of the blowing blade 512 , and then the outside air is sucked through the suction hole 511 during the rotation of the main body 510 and then the outside air is discharged through the blowing slit 513 . The foreign material may be transported in a predetermined direction by using the wind emitted by the blower blade 512 .

To this end, the suction hole 511 and the blowing slit 513 are connected to each other in a communication structure, and the suction hole 511 and the blowing slit 513 are 1:1, 1:N, or N:1 of any one form can be matched.

That is, the dehumidifier discharge unit 500 according to the present invention absorbs and discharges outside air during the rotation process, thereby pushing the moisture accumulated in the collecting unit 420 in a certain direction, thereby maximizing the effect of discharging moisture to the outside of the air conditioning room. can do.

In particular, the blowing slit 513 is formed in an oblique direction on the surface of the blowing blade 512 , thereby effectively transporting foreign substances accumulated in the corner of the collecting unit 420 .

On the other hand, although not shown, a guide rail is formed on the inner wall of the concave groove 410 in the longitudinal direction, and the rail wheel 540 fastened to the guide rail is fastened to the rotary motor 520 so that the rotary motor 520 is guided. Allow it to move along the rails. Accordingly, the dehumidifier discharge unit 500 according to the present invention can collect and transport foreign substances in a predetermined direction while moving along the longitudinal direction of the collecting unit 420 along the guide rail.

Although the above has been described with reference to the embodiments, those skilled in the art will understand that various modifications and changes can be made to the present invention without departing from the spirit and scope of the present invention described in the claims below. will be able

1: thermostat
100: chamber
200: first air conditioning room
300: second air conditioning room

Claims (3)

a chamber in which an object requiring constant temperature maintenance is accommodated; a first air conditioning chamber provided at one side of the chamber to circulate air for temperature control to the chamber; and a second air conditioning chamber provided on the other side of the chamber to circulate air for temperature control to the chamber,
The first air conditioning room and the second air conditioning room,
an air outlet and an air inlet communicating with the chamber;
a temperature control unit including a heater for increasing the temperature of the air supplied to the chamber and an evaporator for decreasing the temperature of the air supplied to the chamber;
a blowing fan for supplying air whose temperature is controlled by the temperature control unit to the chamber through the air outlet;
a driving motor for driving the blowing fan;
a supply damper installed at one side of the air outlet to open and close the air outlet; and
and a recovery damper installed at one side of the air inlet to open and close the air inlet;
The thermostat device,
Further comprising a control unit for controlling the operation mode of the first air conditioning room and the second air conditioning room,
The control unit is
Alternately operating the first air conditioning room and the second air conditioning room,
When the first air conditioning chamber is operated, the supply damper and the recovery damper provided in the second air conditioning chamber are controlled to close the air outlet and the air inlet formed in the second air conditioning chamber, while the supply damper provided in the first air conditioning chamber and controlling the recovery damper to open the air outlet and air inlet formed in the first air conditioning room;
When the second air conditioning room is operated, the supply damper and the recovery damper provided on the first air conditioning chamber side are controlled to close the air outlet and the air intake port formed in the first air conditioning chamber, while the supply damper provided on the second air conditioning chamber side and controlling the recovery damper to open the air outlet and the air inlet formed in the second air conditioning chamber.
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