KR100366358B1 - Refrigerator system - Google Patents

Abstract

The present invention relates to a refrigerator system capable of providing cold air for long-term storage of food in a fresh state, and in particular, an air flow path structure in which air circulation in the freezer compartment and the refrigerating compartment is independently separated so that air in the refrigerating compartment is not circulated to the freezer compartment. The present invention relates to a non-freezing refrigerator system in which the air flowing into the evaporator is kept in a low humidity state to prevent the phenomena of the evaporator, and the air in the refrigerating compartment is kept in a humid state to ensure freshness in the refrigerating compartment.

The present invention for achieving the above object, the evaporator for providing cold air through heat exchange to the freezer compartment and the refrigerating compartment to separate the air circulation of the freezer compartment and the refrigerating compartment of the refrigerator, respectively, separates the air flow path of the freezer compartment and the refrigerating compartment. The freezer compartment side evaporator is divided into a freezer compartment side evaporator and a refrigerator compartment side evaporator, and the freezer compartment is provided with a freezer compartment air circulation unit for supplying the cold air provided by the freezer compartment side evaporator to the inside of the freezer compartment and then recovering it to the freezer compartment side evaporator. A refrigerating compartment air circulation unit for supplying the cold air provided by the refrigerating compartment side evaporator to the inside of the refrigerating compartment and then recovering it to the refrigerating compartment side evaporator is installed.

Description

Freeze Freezer System {Refrigerator system}

The present invention relates to a refrigerator system capable of storing cold food for a long time in a fresh state by providing cold air, and more particularly, to a non-freezing refrigerator system having an air flow path structure in which air circulation of the freezer compartment and the refrigerating compartment is independently separated from each other. will be.

1 is a left side view of the structure and the air flow of the refrigerator system according to the prior art, Figure 2 is a block diagram showing the structure and the air flow of the evaporator applied to the refrigerator system according to the prior art.

1 and 2, in the refrigerator system according to the related art, when the refrigerant compressed by the compressor 1 and changed into a vapor state of high temperature and high pressure is sucked into the condenser 2, the condenser 2 may release heat. By discharging, the refrigerant is changed into a liquid state at room temperature and high pressure.

Thereafter, the refrigerant condensed by the condenser 2 passes through a capillary tube, and a part of the refrigerant is depressurized to be in a two-phase state in which liquid and gas are mixed.

Thereafter, the refrigerant sucked into the evaporator 3 is completely vaporized to take the heat of the surroundings to cool the surroundings, and the air cooled by the evaporator 3 is provided to the freezing chamber U and the refrigerating chamber L. . At this time, the cold air supplied through the evaporator (3) through the freezer compartment air outlet (11) and the refrigerator compartment air outlet (12) by the rotational force of the freezer compartment fan 4 for absorbing the evaporator (3) ) And the refrigerating chamber (L).

However, the cold air provided to the freezer compartment U and the refrigerating compartment L and cooling the inside of the refrigerator as described above is a passage near the boundary between the freezer compartment U and the refrigerating compartment L, that is, the freezer compartment air inlet 13. After being combined in the refrigerating chamber air inlet 14, it enters the evaporator air inlet 16 through the cold air duct 15.

Since the air flowing into the evaporator air inlet 16 is changed into high temperature and high humidity air through the freezing chamber U and the refrigerating chamber L, the air maintains a temperature of minus 30 degrees or less. When heat exchanged with the sub-32 degree refrigerant which flows inside the evaporator 3 while flowing the surface of the evaporator 3, the moisture in the air is instantaneously solidified and the surface of the tube 3a and the fin 3b of the evaporator 3 The frost layer is formed in the.

As described above, the frost layer formed on the surface of the evaporator 3 changes into hard ice as time passes and acts as a resistance element of heat transfer between the air and the refrigerant, thereby reducing the heat exchange efficiency of the evaporator 3.

Therefore, in order to prevent the deterioration of the performance of the evaporator 3 generated by the frost layer as described above, after the defrost heater is installed in the evaporator 3, the defrosting operation is performed by sensing the temperature in the freezer compartment. A method of removing the frost layer formed on the substrate has been adopted and used.

As such, when the defrost heater is used to prevent the phenomena of the evaporator 3, the power consumption increases due to the operation of the defrost heater, and the durability and the durability of the evaporator 3 due to the repeated defrosting and defrosting operation are performed. Performance will be degraded.

That is, since the conventional refrigerator system needs periodic defrosting operation using the defrost heater to remove the frost phenomenon of the evaporator (3), the power consumption of the refrigerator increases as well as the evaporator (3) according to the operation of the defrost heater. Due to the repeated deposition and defrosting operation on the frost layer formed in the), there was a problem in that the performance of the evaporator 3 was reduced and the life was shortened.

In addition, the conventional refrigerator system is impossible to keep the air in the refrigerating chamber (L) in a humid state because the low humidity air is provided to the refrigerating chamber (L) as a result of the humid air is implanted through the evaporator (3). There was a problem that can not maintain the freshness inside the refrigerator compartment.

The present invention has been made in order to solve the above problems, the air flowing into the evaporator is low humidity by having an air flow path structure that separates the air circulation of the freezer compartment and the refrigerating compartment independently so that the air of the refrigerating compartment is not circulated to the freezer compartment. It is an object of the present invention to provide a non-storage refrigerator system that is maintained in a state to prevent the phenomenon of the evaporator, and that the air in the refrigerating compartment is kept in a humid state to ensure the freshness inside the refrigerating compartment.

1 is a left side view showing the structure of a refrigerator system according to the prior art and the air flow thereof;

Figure 2 is a block diagram showing the structure and the air flow of the evaporator applied to the refrigerator system according to the prior art,

Figure 3 is a left side view showing the structure and the air flow of the non-storage refrigerator system according to the present invention,

Figure 4 is a front view showing the structure and installation state of the evaporator applied to the non-storage refrigerator system according to the present invention,

5 is a left side view of FIG. 4.

<Explanation of symbols for the main parts of the drawings>

U: Freezer L: Refrigerator 51: Compressor

52 condenser 53 evaporator 55 freezer compartment side evaporator

56: refrigerator compartment side evaporator 56c: defrost pipe 57: separation plate

61: freezer compartment 63: freezer compartment air outlet 65: freezer compartment air inlet

67: freezer compartment duct 71: refrigerator compartment fan 73: refrigerator compartment air outlet

75: refrigerator compartment air inlet 77: refrigerator compartment duct

A feature of the non-detachable refrigerator system according to the present invention for achieving the above object is an evaporator for providing cold air through heat exchange to the freezer compartment and the refrigerating compartment so that the air circulation of the freezer compartment and the refrigerating compartment of the refrigerator is independently separated. It is divided into a freezer compartment evaporator and a refrigerator compartment side evaporator, and the freezer compartment is provided with a freezer compartment air circulation unit for supplying the cold air provided by the freezer compartment side evaporator to the inside of the freezer compartment and then recovering it to the freezer compartment side evaporator, and the refrigerator compartment provided in the refrigerator compartment side evaporator. A refrigerator compartment air circulation unit for supplying cold air into the refrigerator compartment and then recovering the refrigerator to the refrigerator compartment side evaporator is installed.

In addition, an additional feature of the present invention is that the freezer compartment side evaporator and the refrigerator compartment side evaporator of the evaporator are divided by a separating plate separating the air passages of the freezer compartment and the refrigerator compartment, and the tubes of the freezer compartment side evaporator and the refrigerator compartment side evaporator are continuously The tube stage of the freezer compartment side evaporator is less than the tube stage of the refrigerator compartment side evaporator, and the spacing between the fins of the freezer compartment side evaporator is smaller than the spacing between the fins of the refrigerator compartment side evaporator.

Further, an additional feature of the present invention is that the freezer compartment air circulation unit is installed on the upper side of the freezer compartment side evaporator to promote endothermic action of the freezer compartment side evaporator and at the same time circulates the cold air provided from the freezer compartment side evaporator, and A freezer compartment air inlet unit for supplying cold air provided from a freezer compartment side evaporator into the freezer compartment, a freezer compartment air inlet unit for recovering air after cooling the inside of the freezer compartment, and air recovered through the freezer compartment air inlet unit; And a refrigerating compartment fan configured to move to the refrigerator, wherein the refrigerating compartment air circulation unit is installed under the refrigerating compartment side evaporator to promote endothermic action of the refrigerating compartment side evaporator and to circulate the cold air provided from the refrigerating compartment side evaporator, and the refrigerating compartment. Cold air provided from the measured evaporator into the refrigerator compartment The refrigerator compartment air discharge part to supply, the refrigerator compartment air inlet part which collect | recovers the air after cooling the said refrigerator compartment inside, and the refrigerator compartment duct which moves the air collect | recovered through the said refrigerator compartment air inlet part to the said refrigerator compartment side evaporator.

In addition, an additional feature of the present invention is that a defrosting pipe through which humid air is circulated in the refrigerating compartment is installed at both ends of the fin of the refrigerating compartment side evaporator to allow the control of the refrigerating compartment side evaporator.

According to the present invention configured as described above, since the air circulation between the freezer compartment and the refrigerating compartment is separated from each other independently, the air flowing into the freezer compartment side evaporator is kept in a low humidity state to prevent frosting of the freezer compartment side evaporator, and the air in the refrigerating compartment is humid. Maintained in one state has the advantage that the freshness inside the refrigerator compartment is secured.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 3 is a left side view showing the structure and the air flow of the non-settling refrigerator system according to the present invention, Figure 4 is a front view showing the structure and installation state of the evaporator applied to the non-settling refrigerator system according to the invention, 5 is a left side view of FIG. 4.

Referring to FIG. 3, in the non-storage refrigerator system according to the present invention, the air circulation between the freezer compartment U and the refrigerating compartment L of the refrigerator is independently separated from each other in the freezer compartment U and the refrigerating compartment L. FIG. The evaporator 53 which provides cold air through heat exchange is divided into a freezer compartment side evaporator 55 and a refrigerator compartment side evaporator 56, and the freezer compartment U has a cold air provided from a freezer compartment side evaporator 55 inside the freezer compartment U. After supplying to the freezer compartment air circulation unit to recover to the freezer compartment side evaporator (55) is installed, the refrigeration chamber (L) is supplied with the cold air provided in the refrigerating compartment side evaporator (56) inside the refrigerating compartment (L) and then refrigerated again The refrigerator compartment air circulation part collect | recovered by the actual evaporator 56 is provided.

Here, the evaporator 53 is located in the rear portion of the refrigerator, installed in the vertical direction through the freezer compartment (U) and the refrigerating chamber (L), the separation plate for separating the air flow path of the freezer compartment (U) and the refrigerating chamber (L). Reference numeral 57 denotes the freezer compartment side evaporator 55 and the refrigerating compartment side evaporator 56.

In addition, the tubes 55a and 56a of the freezer compartment evaporator 55 and the refrigerator compartment side evaporator 56 are continuously connected, and the number of tubes 55a of the freezer compartment side evaporator 55 is the refrigerator compartment side evaporator 56. The spacing between the fins 55b of the freezer compartment side evaporator 55 and the spacing between the fins 56b of the refrigerator compartment side evaporator 56 are different from each other. That is, the spacing between the fins 55b of the freezer compartment side evaporator 55 is formed smaller than the spacing between the fins 56b of the refrigerator compartment side evaporator 56.

Therefore, even if the number of tubes 55a of the freezer compartment side evaporator 55 is less than the number of tubes 56a of the refrigerator compartment side evaporator 56 due to the space constraint of the freezer compartment U, the freezer compartment evaporator 55 Since the spacing between the fins 55b of the cold storage chamber evaporator 56 is smaller than the spacing between the fins 56b of the refrigerator compartment evaporator 56, that is, the heat exchange area of the freezer compartment side evaporator 55 is sufficiently secured. The supply of cold air to the freezing chamber U by the actual measurement evaporator 55 is made without a hitch.

In addition, the freezer compartment air circulation unit is installed above the freezer compartment side evaporator 55 to promote the endothermic action of the freezer compartment side evaporator 55 and to circulate the cold air provided from the freezer compartment side evaporator 55. ), A freezer compartment air discharge unit 63 for supplying cold air provided from the freezer compartment side evaporator 55 into the freezer compartment U, and a freezer compartment air inlet unit for recovering air after cooling the inside of the freezer compartment U. 65 and a freezer compartment duct 67 for moving the air recovered through the freezer compartment air inlet 65 to the freezer compartment side evaporator 55.

In addition, the refrigerating compartment air circulation unit is installed below the refrigerating compartment side evaporator 56 to promote endothermic action of the refrigerating compartment side evaporator 56 and at the same time the refrigerating compartment fan circulating the cold air provided from the refrigerating compartment side evaporator 56. ), A refrigerating chamber air discharge unit 73 for supplying the cold air provided from the refrigerating chamber side evaporator 56 into the refrigerating chamber L, and a refrigerating chamber air inlet unit for recovering air after cooling the inside of the refrigerating chamber L. And a refrigerating chamber duct 77 for moving the air recovered through the refrigerating chamber air inlet 75 to the refrigerating chamber side evaporator 56.

Here, the freezer compartment fan 61 and the refrigerating compartment fan 71 are installed to be located directly above or below the evaporator 53 as shown in FIG. 3, or as shown in FIG. 5 of the evaporator 53. It may be installed so as to enter in the inward direction of the freezer compartment (U) and the refrigerating chamber (L) immediately above or below.

In addition, the freezer compartment air outlet 63 and the refrigerating compartment air outlet 73 are formed in a grill shape as shown in FIG. 3, or the freezer compartment fan 61 and a refrigerating compartment fan therein as shown in FIG. 5. It may be formed in the form of a duct provided with (71).

Finally, both ends of the fin 56b of the refrigerating chamber side evaporator 56 are provided with defrost pipes 56c through which humid air in the refrigerating chamber L is circulated so as to allow the control of the refrigerating chamber side evaporator 56 to be implanted. The defrosting principle of the defrost pipe 56c is the same as that of a conventional well-known heater, and a heat generating member is embedded therein, and the heat of the heat generating member is transferred to the refrigerating chamber side evaporator 56 so that the refrigerating chamber side evaporator 56 is provided. Remove frost on the surface of the That is, when the temperature is measured in the thermostat installed in the refrigerator compartment or the refrigerator compartment side evaporator 56 and outputs a detection signal to the controller of the refrigerator, the controller determines whether to operate the defrost pipe and supplies power to the heat generating member. The heat generating member generates heat up to about 100 ° C. The high heat of the heat generating member is conducted to the refrigerating chamber side evaporator 56 through the defrost pipe 56c to remove frost generated on the surface of the refrigerating chamber side evaporator 56. And, the installation structure of the defrost pipe 56c As is well known in the art, the high heat of the defrost pipe 56c is fitted to the pin 56b of the refrigerating chamber side evaporator 56 so as to be transferred to the refrigerating chamber side evaporator 56, or next to the fin 56b. It can be attached to a variety of installation.

Operation of the non-detachable refrigerator system according to the present invention configured as described above is as follows.

First, when the refrigerant compressed by the compressor 51 and changed into a vapor state at high temperature and high pressure is sucked into the condenser 52, the condenser 52 releases heat to change the refrigerant into a liquid state at room temperature and high pressure. Subsequently, the refrigerant condensed by the condenser 52 passes through a capillary tube, and a part of the refrigerant is depressurized to be in a two-phase state in which liquid and gas are mixed.

Then, the refrigerant sucked into the evaporator 53 is completely vaporized to take the heat of the surroundings to cool the surroundings, and thus the air cooled by the evaporator 53 is provided to the freezing chamber (U) and the refrigerating chamber (L). .

More specifically, the air cooled by the freezer compartment side evaporator 55 of the upper side of the evaporator 53 is a freezer compartment air discharge unit due to the rotational force of the freezer compartment 61 for absorbing the freezer compartment side evaporator 55. 63 is supplied into the freezer compartment (U). Thereafter, the air after being supplied to the freezing chamber (U) through the freezer compartment air discharge unit (63) and cooling the inside of the freezer compartment (U) is recovered through the freezer compartment air inlet unit (65) and along the freezer compartment duct (67). The freezing chamber side evaporator 55 is introduced, and the air introduced into the freezing chamber side evaporator 55 is cooled again through heat exchange.

At the same time, the air cooled by the refrigerating chamber side evaporator 56 in the lower side of the evaporator 53 is refrigerating chamber air discharge unit 73 by the rotational force of the refrigerating chamber fan 71 for absorbing the refrigerating chamber side evaporator 56. It is supplied into the refrigerating chamber (L) through. Thereafter, the air after being supplied to the refrigerating chamber L through the refrigerating chamber air discharge unit 73 and cooling the inside of the refrigerating chamber L is recovered through the refrigerating chamber air inlet 75 along the refrigerating chamber duct 77. The air flowing into the refrigerating chamber side evaporator 56 and thus, the air introduced into the refrigerating chamber side evaporator 56 is cooled again through heat exchange.

At this time, if the air circulation of the freezer compartment (U) and the air circulation of the refrigerating compartment (L) are independently separated as described above, because low humidity air of the freezer compartment (U) flows into the freezer compartment side evaporator (55). However, since the humid air of the refrigerating chamber (L) flows into the refrigerating chamber side evaporator 56, an frost phenomenon may occur in which a frost layer is formed on the surface of the refrigerating chamber side evaporator 56.

Therefore, in the air circulation structure of the refrigerating chamber L, the refrigerating chamber side evaporator is circulated through the dehumidifying pipe 56c provided at both ends of the fin 56b of the refrigerating chamber side evaporator 56 in the humid air of the refrigerating chamber L. A structure for performing the idea of controlling 56 is added.

That is, after cooling the refrigerating chamber (L), when the temperature is slightly increased and the air in the humid state is moved through the refrigerating chamber duct 77, most of the air is cooled through the refrigerating chamber evaporator 56 and the rest of the It is moved through the defrost pipe (56c) so that the frost layer is not formed on the surface of the refrigerator compartment side evaporator (56).

Thereafter, the air passing through the defrost pipe 56c is discharged to the refrigerating chamber L through the refrigerating chamber air discharge unit 73 together with the air cooled by the refrigerating chamber side evaporator 56, and the process is a refrigerator. It is repeated continuously while it is working.

In the non-storage refrigerator system according to the present invention configured and operated as described above, since the air circulation of the freezer compartment (U) and the refrigerating compartment (L) is independently separated so that the air of the refrigerating compartment (L) does not circulate to the freezer compartment (U). The air flowing into the freezer compartment side evaporator 55 is kept in a low humidity state to prevent the phenomenon of implantation of the freezer compartment side evaporator 55.

In addition, even if the air flowing into the refrigerating chamber side evaporator 56 is in a humid state, the control of the conception of the refrigerating chamber side evaporator 56 is easily performed by the defrost pipe 56c provided in the fin 56b of the refrigerating chamber side evaporator 56. Since it is made, the phenomenon of implantation of the refrigerator compartment side evaporator 56 is prevented.

Therefore, it is not necessary to perform the repeated defrosting and defrosting operation through a separate device in order to remove the frost phenomenon of the freezer compartment side evaporator 55, so that the performance of the freezer compartment side evaporator 55 is improved and its life is extended. Of course, there is an advantage that the power consumption of the refrigerator is reduced.

In the present invention, since the air circulation between the freezer compartment (U) and the refrigerating compartment (L) is independently separated, and the phenomenon of the refrigerating compartment side evaporator (56) is prevented, air in the refrigerating compartment (L) is kept in a humid state and thus the refrigerating compartment (L) There is an advantage that the freshness inside is secured.

Claims (4)

The evaporator for providing cold air through heat exchange in the freezer compartment and the refrigerating compartment is separated by a separating plate separating the air flow path between the freezer compartment and the refrigerating compartment so that the air circulation of the freezer compartment and the refrigerating compartment of the refrigerator is independently separated. The freezer compartment is divided into an evaporator, and a freezer compartment air circulation unit for supplying the cold air provided by the freezer compartment side evaporator to the inside of the freezer compartment and then recovering it to the freezer compartment side evaporator is installed, and the cold compartment provided the cold air provided from the refrigerator compartment side evaporator to the inside of the refrigerating compartment. And a refrigerator compartment air circulation unit for recovering the same to the refrigerator compartment side evaporator. The method of claim 1, The freezer compartment side evaporator and the refrigerating compartment side evaporator of the evaporator are continuously connected by a tube through which a refrigerant flows, and the tube stage of the freezer compartment evaporator is less than the number of tubes of the refrigerator compartment side evaporator, and between the fins of the freezer compartment evaporator. The free space of the refrigerator free system, characterized in that less than the interval between the fins of the refrigerator compartment side evaporator. The method of claim 1, The freezer compartment air circulation unit is installed above the freezer compartment side evaporator to promote endothermic action of the freezer compartment side evaporator and to circulate the cold air provided from the freezer compartment side evaporator, and the cold air provided from the freezer compartment side evaporator to the inside of the freezer compartment. A freezer compartment air outlet to supply, a freezer compartment air inlet unit for recovering air after cooling the inside of the freezer compartment, and a freezer compartment duct for moving the air recovered through the freezer compartment air inlet unit to the freezer compartment side evaporator, The refrigerating compartment air circulation unit is installed below the refrigerating compartment side evaporator to promote endothermic action of the refrigerating compartment side evaporator and to circulate the cold air provided from the refrigerating compartment side evaporator, and the cold air provided from the refrigerating compartment side evaporator into the refrigerating compartment. A refrigerating compartment air inlet unit for supplying the refrigerating compartment, a refrigerating compartment air inlet unit for recovering air after cooling the inside of the refrigerating compartment, and a refrigerating compartment duct for moving the air recovered through the refrigerating compartment air inlet unit to the refrigerating compartment side evaporator. Immersion freezer system. The method of claim 1, The defrosting refrigerator system is installed at both ends of the fin of the refrigerating chamber side evaporator is installed a defrost pipe circulating the humid air in the refrigerating compartment to enable the control of the idea of the refrigerating chamber side evaporator.