KR101796990B1 - Apparatus for controling temperature of container - Google Patents

Apparatus for controling temperature of container Download PDF

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Publication number
KR101796990B1
KR101796990B1 KR1020150036716A KR20150036716A KR101796990B1 KR 101796990 B1 KR101796990 B1 KR 101796990B1 KR 1020150036716 A KR1020150036716 A KR 1020150036716A KR 20150036716 A KR20150036716 A KR 20150036716A KR 101796990 B1 KR101796990 B1 KR 101796990B1
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KR
South Korea
Prior art keywords
node
temperature
switch
state
power
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KR1020150036716A
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Korean (ko)
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KR20160111705A (en
Inventor
이진환
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(주)쿨테이너
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Priority to KR1020150036716A priority Critical patent/KR101796990B1/en
Publication of KR20160111705A publication Critical patent/KR20160111705A/en
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Publication of KR101796990B1 publication Critical patent/KR101796990B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/006—Safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/34—Temperature balancing devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The present invention relates to a temperature control apparatus for a storage means,
The temperature control device of the storage means includes a heating heater connected to one of the N nodes of the AC power source to perform a heating operation; A refrigerator having one side connected to an N-node of the AC power source to perform a cooling operation; A first switch having one side connected to the R node of the AC power source, the first switch having a room temperature lower than a first temperature, and the second switch having a second temperature lower than the first temperature; A second switch which is connected to one of the R nodes of the AC power source and is in a first state when the room temperature is higher than the target temperature and in a second state when the room temperature is higher than the target temperature; And a power supply path to the freezer when the first and second switches are both in the first state, and a second power supply path to the first and second switches, And a power relay that forms a power supply path to the heating heater when all the second switches are in the second state.

Description

[0001] Apparatus for controlling temperature of container [0002]

The present invention relates to a temperature control apparatus for a storage means such as a cold storage and a refrigerator, and more particularly to a temperature control apparatus for a storage means for enabling a temperature control operation of a storage means to be performed more accurately and reliably.

In the conventional method, when the temperature of the storage tank is higher than the set temperature, the freezer is operated to lower the temperature. If the temperature of the storage tank is lower than the set temperature, The electric heater is operated to raise the temperature of the storage tank to the set temperature.

In this case, the refrigerator and the heating heater may be simultaneously operated. In order to prevent the simultaneous operation of the refrigerator and the heating heater, a method of providing a gap of about 2 ° C between the actual control temperature and the set temperature has been further proposed.

If the set temperature of the storage means is 0 ° C, the temperature must be lowered down to at least -2 ° C so that the storage heater is operated in a temperature sensitive manner If it is an item, there may be a problem of wearing cold.

In order to solve the above-mentioned problems, the present invention is to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for controlling a temperature of a storage means, The temperature control device of the storage means is provided.

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

As a means for solving the above problems, according to one embodiment of the present invention, there is provided a heating apparatus comprising: a heating heater connected to an N-node of an AC power source and performing a heating operation; A refrigerator having one side connected to an N-node of the AC power source to perform a cooling operation; A first switch having one side connected to the R node of the AC power source, the first switch having a room temperature lower than a first temperature, and the second switch having a second temperature lower than the first temperature; A second switch which is connected to one of the R nodes of the AC power source and is in a first state when the room temperature is higher than the target temperature and in a second state when the room temperature is higher than the target temperature; And a power supply path to the freezer when the first and second switches are both in the first state, and a second power supply path to the first and second switches, And a power relay which forms a power supply path to the heating heater when all the second switches are in the second state.

Wherein the power relay generates a magnetic force by receiving power only when the second switch is in the first state; And supplying power to the freezer when the holding coil generates a magnetic force and the first switch is in a first state and supplies power to the heater when the holding coil does not generate a magnetic force and the first switch is in a second state And a switching unit for supplying the switching unit.

According to another aspect of the present invention, there is provided a device for measuring indoor and outdoor temperatures of a storage means, A controller for comparing the target temperature set by the user with the indoor and outdoor temperatures of the storage means; A heating heater and a freezer for performing a heating operation and a cooling operation; And a driving circuit for supplying power to the freezer only when the room temperature is lower than the outdoor temperature and higher than the target temperature, and supplying power to the heating heater only when the room temperature is higher than the outdoor temperature and lower than the target temperature Of the temperature control device.

In the present invention, considering the room temperature and the target temperature of the storage means in addition to the outdoor temperature, it is possible to prevent a temperature difference between the actual control temperature and the set temperature from occurring even during the winter season compensation operation, To be stored.

1 is a view for explaining a temperature control apparatus of a storage means according to an embodiment of the present invention.
2 is a view for explaining a cooling method of the temperature control device of the storage means according to the embodiment of the present invention.
3 is a view for explaining a heating method of the temperature control device of the storage means according to the embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

The following terms are defined in consideration of the functions of the present invention, and these may be changed according to the intention of the user, the operator, or the like.

The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art to which the present invention pertains. Only. Therefore, the definition should be based on the contents throughout this specification.

1 is a view for explaining a temperature control apparatus of a storage means according to an embodiment of the present invention.

1, the temperature control device of the storage means of the present invention includes a sensor unit 10, a controller 20, a refrigerator 31, a heater 32, State display sections 41 and 42, and a driving circuit 50, and the like.

The sensor unit 10 includes an indoor temperature sensor 11 installed inside the storage unit and an outdoor temperature sensor 12 installed outside the storage unit to measure the indoor and outdoor temperatures of the storage unit do.

The controller 20 may further include a first control signal ctrl1 for controlling the operation of the heater and the refrigerator installed in the low temperature reservoir, taking into consideration the target temperature set by the user and the internal temperature of the storage means, And generates and outputs the second control signal ctrl2.

For example, when the target temperature is set to 8 ° C, the controller 20 of the present invention checks the outside temperature, and when the outside temperature is less than 8 ° C, the controller 20 forcibly stops the operation of the refrigerator, And when the outside temperature is 8 ° C or more, the operation of the heating heater is forcibly stopped and only the freezer is operated.

The heating heater H is located between the N-node of the AC power source and the driving circuit 50 and determines whether or not the heating operation is performed according to whether the driving circuit 50 conducts current.

The freezer F is located between the N-th node of the AC power source and the driving circuit 50, and determines whether or not to perform the cooling operation according to the current conduction state of the driving circuit 50.

The state display units 41 and 42 are connected in parallel to the heating heater H and are connected in parallel to the refrigerator F so as to be connected to the refrigerator F And a second light emitting device L2 that is turned on only during operation to visually inform the current operation state of the temperature control device.

The driving circuit 50 supplies power to the freezer only when the room temperature is lower than the outdoor temperature and higher than the target temperature, and supplies power to the heater only when the room temperature is higher than the outdoor temperature and lower than the target temperature.

To this end, the driving circuit 50 has a first switch SW1 whose indoor temperature becomes a first state in which the outdoor temperature is lower than the first state and a second state in which it is not, Is connected between the other side of the second switch SW2, the heating heater H and the freezer F and the first and second switches SW1 and SW2 which are in the second state, Power is supplied to the freezer F when all of the switches SW1 and SW2 are in the first state and power is supplied to the heater H when both of the first and second switches SW1 and SW2 are in the second state And a power relay PL capable of supplying power.

The power relay PL includes a holding coil C for generating a magnetic force by being supplied with power only when the second switch SW2 is in the first state and a holding coil C for generating a magnetic force by the holding coil C, The power is supplied to the freezer F when the first switch SW1 is in the first state and the power is supplied to the heater H if the holding coil C does not generate the magnetic force and the first switch SW1 is in the second state And a switching unit RS. The switching unit RS is connected to the first node n1 connected to the heating heater H, the second node n2 operating as a floating node, the third node n2 connected to the eleventh node n11 of the first switch SW1, A fourth node n4 acting as a floating node, a fifth node n5 connected to the freezer F and a sixth node n6 connected to the twelfth node n12 of the first switch SW1. In the case of operating as the A terminal, a connection is made between the second node n2 and the third node n3 and between the fifth node n5 and the sixth node n6, Is connected between the first node n1 and the third node n3 and between the fourth node n4 and the sixth node n6.

The first switch SW1 includes an eleventh node n11 connected to the third node of the switching unit RS, a twelfth node n11 connected to the sixth node of the switching unit RS, The eleventh node n11 and the thirteenth node n13 are connected when the outdoor temperature value is lower than the room temperature value under the control of the controller 20 and the thirteenth node n13 is connected to the R node, And the twelfth node n12 and the thirteenth node n13 are connected to each other.

The second switch SW2 has a twenty-first node n21 operating as a floating node, a twenty-second node n22 connected to the holding coil C, and a twenty-third node n23 connected to the R- When the room temperature value is equal to or lower than the target temperature value under the control of the controller 20, the twenty-first node n21 and the twenty-third node n23 are connected; otherwise, the twenty-second node 212 and the twenty- n23) are connected to each other.

2 is a view for explaining a cooling method of the temperature control device of the storage means according to the embodiment of the present invention.

If the indoor temperature is lower than the outdoor temperature and higher than the target temperature, the controller 20 compares the indoor temperature and the outdoor temperature to obtain a first control signal ctrl1 having a first value, 1, and generates and outputs the second control signal ctrl2.

The twelfth node n12 and the thirteenth node n13 of the first switch SW1 are energized and the twenty second node n22 and the twenty-third node n23 of the second switch SW2 are energized, Power is supplied through the path of the N-node of the power source, the holding coil C, the second switch SW2, and the R-node of the AC power source, and the holding coil C starts to be excited.

The power relay PL operates as the A terminal and the second node n2 and the third node n3 of the switching unit RS are energized and the fifth node n5 and the sixth node n6 are turned on Power is supplied to the N nodes of the AC power source, the refrigerator F, the power relay PL, the first switch SW1, and the R node of the AC power source, and the refrigerator F starts to operate.

The controller 20 changes the signal value of the second control signal ctrl2 to a second value so that the second switch SW2 is connected to the twenty-first node n21 ) And the 23rd node (n23).

Then the excitation of the holding coil C is interrupted because the holding coil C is no longer supplied with power and the power relay PL operates with the terminal B so that the first node n1 of the switching part RS, And the third node n3 are energized and the fourth node n4 and the sixth node n6 are energized.

The heater H is connected to the first switch SW1 while the first switch SW1 maintains the energized state between the eleventh node n11 and the thirteenth node n13, The power supply to the power supply is still shut off. That is, the power supply is interrupted by the first switch SW1, so that the heating heater H can not operate.

In addition, since the outdoor temperature is higher than the room temperature, the temperature in the storage tank continuously increases, so that the first switch SW1 maintains its current state and the heating heater H can not continue to operate.

3 is a view for explaining a heating method of the temperature control device of the storage means according to the embodiment of the present invention.

If the indoor temperature is higher than the outdoor temperature and lower than the target temperature, the controller 20 compares the indoor temperature and the outdoor temperature to obtain a first control signal ctrl1 having a second value, And generates and outputs a second control signal ctrl2 having a value of 2.

The eleventh node n11 and the thirteenth node n13 of the first switch SW1 are energized and the twenty-first node n21 and the twenty-third node n23 of the second switch SW2 are energized, The power supply to the holding coil C of the relay PL is interrupted.

The power relay PL is operated by the terminal B so that the first node n1 and the third node n3 of the switching unit RS are energized and the fourth node n4 and the sixth node n6 are turned on The electric power is supplied through the path of the N-node of the AC power source, the heating heater H, the power relay PL, the first switch SW1 and the R-node of the AC power source, Starts to operate.

When the room temperature rises by the target temperature by the heating heater H, the controller 20 changes the signal value of the second control signal ctrl2 back to the first value, and the second switch SW2 responds And energizes the 22nd node (n22) and the 23rd node (n23).

Power is supplied through the path of the N-node, the holding coil C, the second switch SW2 and the R-node of the AC power source, and the holding coil C is excited so that the power relay PL is A Terminal.

Then, the second node n2 and the third node n3 of the switching unit RS are energized, and the fifth node n5 and the sixth node n6 are energized. However, as the first switch SW1 maintains the energized state between the eleventh node n11 and the thirteenth node n13, the power supply to the refrigerator F is continuously shut off.

In addition, since the outdoor temperature is lower than the room temperature, the temperature in the storage tank is continuously lowered so that the first switch SW1 keeps the current state continuously, and the refrigerator F continues to perform the cooling operation I can not.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

Claims (3)

A sensor unit for measuring indoor and outdoor temperatures of the storage means;
A controller for comparing the target temperature set by the user with the indoor and outdoor temperatures of the storage means;
A heater connected to one of the N nodes of the AC power source to perform a heating operation;
A refrigerator having one side connected to an N-node of the AC power source to perform a cooling operation;
A status indicator connected in parallel on the heating heater or the freezer; And
And a driving circuit that supplies power to the freezer only when the room temperature is lower than the outdoor temperature and higher than the target temperature and supplies power to the heating heater only when the room temperature is higher than the outdoor temperature and lower than the target temperature,
The driving circuit includes a first switch (SW1) having a first state in which a room temperature is lower than an outdoor temperature in a state where one side is connected to an R node of the AC power source, A second switch SW2 which is in a first state when the room temperature is higher than the target temperature and a second state when the room temperature is higher than the target temperature, SW1 and SW2 so that power is supplied to the freezer when both of the first and second switches SW1 and SW2 are in the first state, and both of the first and second switches SW1 and SW2 And a power relay capable of supplying power to the heating heater when the first state is the second state,
Wherein the sensor unit includes an indoor temperature sensor installed inside the storage unit and an outdoor temperature sensor installed outside the storage unit to measure the indoor and outdoor temperatures of the storage unit,
The state display unit includes a first light emitting device connected in parallel to the heating heater to turn on only during operation of the heating heater and a second light emitting device connected in parallel to the refrigerator, Visually notifying the status,
Accordingly, it is possible to prevent the occurrence of a temperature difference between the actual control temperature and the set temperature even during the winter season compensation operation by further considering the outdoor temperature besides the room temperature and the target temperature of the storage means,
Temperature control device of storage means. The power relay according to claim 1,
A holding coil for generating a magnetic force by being supplied with power only when the second switch is in the first state; And
Wherein the heating coil supplies power to the heater when the holding coil generates a magnetic force and the first switch is in a first state and supplies power to the heater when the holding coil does not generate a magnetic force and the first switch is in a second state, And a switching unit,
Wherein the switching unit includes a pair of switching units selectively electrically connected on the first switch and the pair of switching units includes a first switching unit connected to the heating heater and a second switching unit connected to the refrigerator,
The first switching unit includes a first node n1 connected to the heating heater H, a second node n2 operating as a floating node, a third node n2 connected to the eleventh node n11 of the first switch SW1, Node n3,
The second switching unit includes a fourth node n4 operating as a floating node, a fifth node n5 connected to the freezer F, a sixth node n5 connected to the twelfth node n12 of the first switch SW1, (n6)
The second node n2 and the third node n3 are connected to each other and the fifth node n5 and the sixth node n6 are connected between the second node n2 and the third node n3,
The first node n1 and the third node n3 are connected to each other and the fourth node n4 and the sixth node n6 are connected to each other.
A control method using a temperature control device of a storage device according to claim 1,
When the room temperature is lower than the outdoor temperature and higher than the target temperature, the controller 20 compares the indoor temperature and the outdoor temperature to obtain a first control signal ctrl1 having a first value and a room temperature and a target temperature Generating and outputting a second control signal (ctrl2) having a value of 1;
The twelfth node n12 and the thirteenth node n13 of the first switch SW1 are energized and the twenty second node n22 and the twenty third node n23 of the second switch SW2 are energized, Power is supplied through the path of the N-node, the holding coil (C), the second switch (SW2), and the R node of the AC power source, and the holding coil (C) is excited;
The power relay PL operates as the A terminal and the second node n2 and the third node n3 of the switching unit RS are energized and the fifth node n5 and the sixth node n6 are turned on Power is supplied to the N nodes of the AC power source, the refrigerator (F), the power relay (PL), the first switch (SW1), and the R node of the AC power source to operate the refrigerator (F);
The controller 20 changes the signal value of the second control signal ctrl2 to a second value when the room temperature is lowered by the target temperature according to the operation of the refrigerator F so that the second switch SW2 is turned on, (n21) and a 23rd node (n23);
The power relay PL operates as a terminal B so that the first node n1 and the third node n3 of the switching unit RS are energized and the fourth node n4 and the sixth node n6 are turned on Energizing step;
The first switch SW1 maintains the energized state between the eleventh node n11 and the thirteenth node n13 so that the first switch SW1 is turned off, Closing the operation of the heater (H) by interrupting power supply by the heater (H); And
The first switch SW1 maintains the current state and maintains the operation stop of the heater H by keeping the outdoor temperature higher than the room temperature so that the temperature in the storage tank continuously increases, ≪ / RTI >
A control method using a temperature control device of a storage means.
KR1020150036716A 2015-03-17 2015-03-17 Apparatus for controling temperature of container KR101796990B1 (en)

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KR1020150036716A KR101796990B1 (en) 2015-03-17 2015-03-17 Apparatus for controling temperature of container

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KR20160111705A KR20160111705A (en) 2016-09-27
KR101796990B1 true KR101796990B1 (en) 2017-11-13

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