KR20160143361A - Prevention device for freeze of heat exchanger - Google Patents

Prevention device for freeze of heat exchanger Download PDF

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Publication number
KR20160143361A
KR20160143361A KR1020150079951A KR20150079951A KR20160143361A KR 20160143361 A KR20160143361 A KR 20160143361A KR 1020150079951 A KR1020150079951 A KR 1020150079951A KR 20150079951 A KR20150079951 A KR 20150079951A KR 20160143361 A KR20160143361 A KR 20160143361A
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KR
South Korea
Prior art keywords
heat exchanger
heater
air
housing
freezing
Prior art date
Application number
KR1020150079951A
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Korean (ko)
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KR101723731B1 (en
Inventor
전서영
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전서영
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Application filed by 전서영 filed Critical 전서영
Priority to KR1020150079951A priority Critical patent/KR101723731B1/en
Publication of KR20160143361A publication Critical patent/KR20160143361A/en
Application granted granted Critical
Publication of KR101723731B1 publication Critical patent/KR101723731B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F17/00—Removing ice or water from heat-exchange apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus

Abstract

The present invention relates to a device for preventing a heat exchanger from freezing. The heat exchanger is used in an air conditioner, and comprises a coil. The device for preventing the heat exchanger from freezing comprises: a first heater unit wherein a first housing is mounted on one side of the heat exchanger, and a first heater is installed in the first housing; a second heater unit wherein a second housing is mounted on the other side of the heat exchanger, and a second heater is installed in the second housing; a third heater unit installed on a lower end of the heat exchanger; and an air rise blocking plate wherein a blocking plate is formed on a lower side of a front surface of the heat exchanger in a transverse direction, and a plurality of through holes are formed on the blocking plate. According to the present invention, heaters are installed on the left side, the right side, and the lower end of the coil of the heat exchanger where freezing frequently occurs, and the air rise blocking plate having the through holes is installed on the front surface of the heat exchanger to prevent freezing on the left side and the right side where freezing frequently occurs, prevent warm air produced from the heater installed on the lower end from rising at once by a density difference from cool air in the upper side by the through holes of the air rise blocking plate which makes a space in which the warm air can rise small, and allow the warm air to stay in the lower side longer to prevent the lower side from freezing.

Description

TECHNICAL FIELD [0001] The present invention relates to a device for preventing freeze of a heat exchanger,

The present invention relates to a device for preventing freezing of a heat exchanger, and more particularly, to a device for preventing freeze of a heat exchanger, in which a heater is installed on the left, right, and bottom of a coil of a heat exchanger, By installing the lift plate, it is possible to prevent freezing of left and right side frequent occurrence of freeze waves, and that the warm air generated from the heater provided at the lower end rises due to the difference in density with the cool air at the upper side, The present invention relates to a device for preventing freezing of a heat exchanger, which prevents a warm air from rising at a time and makes it possible to stay on the lower side for a longer period of time, thereby preventing the lower side from freezing.

Background Art [0002] As a background of the present invention, there is disclosed a method of preventing freezing of a heat exchanger used in an air conditioner, as disclosed in Korean Patent Laid-Open Publication No. 10-2010-0000453.

The conventional air conditioner is equipped with an air filter and a heat exchanger between the suction fan and the indoor air supply fan inside the case.

The indoor air is introduced into the room through the suction damper by the suction force of the suction fan and part of the introduced room air is discharged to the outside while the fresh air is pressurized and the mixed air passes through the filter and the heat exchanger in order And air conditioned by the wind power of the air supply fan is supplied to the room.

On the other hand, in the winter air conditioner, an electric heater is provided at the front end of the filtration unit to prevent the heat exchanger from being frozen.

When the air conditioner is stopped, the damper which purifies the room air is closed, and the damper in which the outside air enters is closed, so that the air flow of the air conditioner is shut off. In this state, when the inside temperature of the air conditioner is lower than the set temperature by the temperature sensor installed at the front side of the coil, the electric heater is operated to raise the inside temperature of the air conditioner to prevent the heat exchanger from freezing.

In the conventional way, when the heat wave from the heat exchanger is prevented, the heat generated by the electric heater raises the temperature of the air and the rising air passes through the filter and the heat exchanger in order to raise the temperature of the left and right sides of the heat exchanger, .

In this case, since the temperature of the space in which the electric heater is installed sufficiently rises and moves on the heat exchanger, a time difference occurs, which causes the heat exchanger to be frozen.

In addition, when the outside damper malfunctions, all the heat generated by the electric heater is discharged to the outside, which causes the heat exchanger to be frozen.

Further, when the internal temperature of the air conditioner rises by the electric heater, the temperature rises from the upper part of the air conditioner, so that the lowering of the heat wave of the heat exchanger is substantially prevented.

It is an object of the present invention, which is devised to solve the problems described above, to provide a heat exchanger in which a heater is installed on the left, right, and bottom of the coil of the heat exchanger, It is possible to prevent the left and right side freezing waves frequently generated by the freeze waves and to prevent the warm air generated from the heater provided at the lower side from rising due to the difference in density with the cool air on the upper side, The present invention is intended to provide a device for preventing freezing of a heat exchanger, which is capable of preventing a warm air from rising at a time and allowing the user to stay on the lower side for a longer period of time,

It is another object of the present invention to provide a method of controlling the temperature of the left, right, and lower coils, respectively, by providing a temperature sensor and a controller for controlling the heater according to a preset temperature, And a device for preventing freezing of the heat exchanger.

According to an aspect of the present invention, there is provided a heat exchanger for use in an air conditioner, the heat exchanger including a coil, a first housing coupled to one side of the heat exchanger, a first heater disposed inside the first housing, A first heater unit installed; A second heater unit having a second housing coupled to the other side of the heat exchanger and a second heater disposed inside the second housing; A third heater installed at a lower end of the heat exchanger; And a plate of the air rising film in which a plate is formed in a lateral direction below the front face of the heat exchanger, and the plate is formed with a plurality of through holes.

A first controller for measuring a temperature of the coil in the first housing by the first sensor and operating the first heater in accordance with the temperature of the first sensor; A second controller for measuring the temperature of the coil in the second housing by the second sensor and operating the second heater in accordance with the temperature of the second sensor; And a third controller for measuring the temperature of the lower end of the heat exchanger by the third sensor and operating the third heater according to the temperature of the third sensor.

As described above, according to the present invention, a heater is installed on the left, right, and bottom of the coil of the heat exchanger, And the warm air generated from the heater disposed at the lower end rises due to the difference in density with the cool air on the upper side. This is because the air rising plate can prevent the through holes of the plate from rising It is possible to provide a device for preventing freezing of the heat exchanger which prevents the warm air from rising at the same time and makes it possible to stay on the lower side for a longer time to prevent the lower side of the frost.

According to the present invention, each of the heaters is provided with a temperature sensor and a control unit for controlling the heater according to a predetermined temperature, respectively, so that the left, right, and lower coil temperatures are sensed respectively, It is possible to provide a device for preventing freezing of a base.

1 is a view illustrating a conventional air conditioner according to a preferred embodiment of the present invention.
FIG. 2 is a view showing a flow of air in a conventional air conditioner according to a preferred embodiment of the present invention.
3 is a perspective view of a conventional heat exchanger according to a preferred embodiment of the present invention.
4 is an exploded perspective view showing an apparatus for preventing freezing of a heat exchanger according to a preferred embodiment of the present invention.
5 is a perspective view illustrating an apparatus for preventing freezing of a heat exchanger according to a preferred embodiment of the present invention.
6 is a perspective view showing an air rising membrane plate according to a preferred embodiment of the present invention.
7 is a flow diagram of air in a heat exchanger according to a preferred embodiment of the present invention.
FIG. 8 is a view showing the air flow by the air rising membrane according to the preferred embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings.

The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, 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 fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the drawings for explaining an apparatus for preventing freezing of a heat exchanger according to embodiments of the present invention.

1 and 2 are views showing a flow of air in a conventional air conditioner 1 and a conventional air conditioner 1 according to a preferred embodiment of the present invention.

In the air conditioner (1) of the present invention, an air filter (5), a heat exchanger (6) and the like are mounted inside the case between the suction fan (3) and the indoor air supply fan.

The room air is introduced into the room through the suction damper by the suction force of the suction fan 3 and part of the introduced room air is discharged to the outside while the fresh outside air is pressurized, And the heat exchanger 6 in order to perform air conditioning and to supply conditioned air to the room by the wind power of the air supply fan.

On the other hand, in the winter air conditioner (1), an electric heater (4) is provided at the front end of the filtration unit to prevent the heat exchanger (6) from being frozen.

3 is a perspective view showing a conventional heat exchanger 6 according to a preferred embodiment of the present invention.

FIG. 4 is an exploded perspective view showing an apparatus 10 for preventing a freeze of a heat exchanger 6 according to a preferred embodiment of the present invention, and FIG. 5 is a cross- 100).

The device 1 for preventing the freezing of the heat exchanger 6 according to the present invention is a heat exchanger 6 used in the air conditioner 1 and installed at one side of the filter 5 and composed of a coil C, A heater unit 110, a second heater unit 120, a third heater unit 130, and an air lift plate 140.

The first heater unit 110 has a first housing 112 coupled to one side of the heat exchanger 6 and a first heater 114 disposed inside the first housing 112.

The second heater unit 120 has a second housing 122 coupled to the other side of the heat exchanger 6 and a second heater 124 disposed inside the second housing 122.

The third heater 130 is installed at the lower end of the heat exchanger 6.

The air lift plate 140 is formed with a plate 142 in a transverse direction below the front face of the heat exchanger 6 and a plurality of through holes 144 are formed in the plate 142.

The air lift plate 140 is installed between the filter 5 and the heat exchanger 6 to separate the space between the filter 5 and the heat exchanger 6 from the upper side to the lower side.

In addition, the device 10 for preventing the freezing of the heat exchanger 6 of the present invention further includes a first control unit, a second control unit, and a third control unit.

The first controller measures the temperature of the coil C in the first housing 112 by the first sensor and operates the first heater 114 in accordance with the temperature of the first sensor.

The second controller measures the temperature of the coil C in the second housing 122 by the second sensor and operates the second heater 124 in accordance with the temperature of the second sensor.

The third control unit measures the temperature of the lower end of the heat exchanger 6 by the third sensor and operates the third heater unit 130 according to the temperature of the third sensor.

6 is a perspective view illustrating the air lift plate 140 according to a preferred embodiment of the present invention.

The air lift plate 140 is installed between the heat exchanger 6 and the filter 5 so that the warm air generated from the third heater unit 130 is diffused to the upper side A plurality of through holes 144 passing through the upper and lower sides of the plate 140 are formed so that the warm air generated from the third heater 130 is discharged to the outside through the density difference & So that the warm air can rise upwardly through the through holes 144, thereby allowing warm air to stay on the lower side for a longer time.

The air lift plate 140 allows the warm air generated from the third heater 130 to stay on the lower side of the heat exchanger 6 for a longer period of time, It is possible to prevent freezing.

7 is a view showing a flow of air in the heat exchanger 6 according to a preferred embodiment of the present invention.

A first housing 112 is coupled to one side of the heat exchanger 6 and a first heater 114 is installed inside the first housing 112 to receive a coil at one side of the heat exchanger 6 The second housing 122 is coupled to the other side of the heat exchanger 6 and the second heater 124 is installed inside the second housing 122 so that the heat exchanger 6 of the coil C on the other side of the coil.

A third heater 130 is installed at the lower end of the heat exchanger 6 to prevent the coil C at the lower end of the heat exchanger 6 from being frozen.

 8 is a view showing air flow by the air lift plate 140 according to a preferred embodiment of the present invention.

The air lift plate 140 is installed between the filter 5 and the heat exchanger 6 and the warm air generated from the third heater 130 installed at the lower end of the heat exchanger 6 So that the air lift film can be lifted slightly through the through holes 144 by reducing the area in which the plate 140 can rise so that warm air can stay at the lower end of the heat exchanger 6 for a longer time, Of the lower coil (C).

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and range of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

1: air conditioner 2: inlet
3: Suction fan 4: Heater
5: Filter 6: Heat exchanger
7: Supply fan 8: Outlet
100: Freezing device 110: First heater part
112: first housing 114: first heater
120: second heater section 122: second housing
124: second heater 130: third heater part
140: air lift plate 142: curtain plate
144: Through hole C: Coil

Claims (2)

In a heat exchanger used in an air conditioner and composed of a coil,
A first heater unit having a first housing coupled to one side of the heat exchanger and a first heater disposed inside the first housing;
A second heater unit having a second housing coupled to the other side of the heat exchanger and a second heater disposed inside the second housing;
A third heater installed at a lower end of the heat exchanger;
And a plate of an air rising film in which a plate is formed in a transverse direction below the front face of the heat exchanger and in which the plate is provided with a plurality of through holes. The method according to claim 1,
A first controller for measuring a temperature of the coil in the first housing by the first sensor and operating the first heater in accordance with the temperature of the first sensor;
A second controller for measuring the temperature of the coil in the second housing by the second sensor and operating the second heater in accordance with the temperature of the second sensor;
And a third controller for measuring the temperature of the lower end of the heat exchanger by the third sensor and operating the third heater according to the temperature of the third sensor.
KR1020150079951A 2015-06-05 2015-06-05 Prevention device for freeze of heat exchanger KR101723731B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150079951A KR101723731B1 (en) 2015-06-05 2015-06-05 Prevention device for freeze of heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150079951A KR101723731B1 (en) 2015-06-05 2015-06-05 Prevention device for freeze of heat exchanger

Publications (2)

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KR20160143361A true KR20160143361A (en) 2016-12-14
KR101723731B1 KR101723731B1 (en) 2017-04-05

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100213628B1 (en) * 1997-08-26 1999-08-02 윤종용 Refrigerator having defrost heater
KR100917119B1 (en) * 2008-10-21 2009-09-11 양승덕 Case of heat-exchanger

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100213628B1 (en) * 1997-08-26 1999-08-02 윤종용 Refrigerator having defrost heater
KR100917119B1 (en) * 2008-10-21 2009-09-11 양승덕 Case of heat-exchanger

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