EP1800076A1 - Refrigerator - Google Patents

Refrigerator

Info

Publication number
EP1800076A1
EP1800076A1 EP05789808A EP05789808A EP1800076A1 EP 1800076 A1 EP1800076 A1 EP 1800076A1 EP 05789808 A EP05789808 A EP 05789808A EP 05789808 A EP05789808 A EP 05789808A EP 1800076 A1 EP1800076 A1 EP 1800076A1
Authority
EP
European Patent Office
Prior art keywords
refrigerator
condenser
edge
bent portion
food holding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05789808A
Other languages
German (de)
French (fr)
Other versions
EP1800076B1 (en
Inventor
Jong Min Samsung APT. 110-1003 SIN
Chul Gi Daedong APT. 123-2204 ROH
Hyeon Daewoo APT. 201-303 KIM
Sung Hee Gaenaeri 2-Cha APT. 201-408 KANG
Jun Hyun LG Electronics Inc. HWANG
Jong Kwon Daedong Digital Hwangtoe APT. KIM
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Priority to PL05789808T priority Critical patent/PL1800076T3/en
Publication of EP1800076A1 publication Critical patent/EP1800076A1/en
Application granted granted Critical
Publication of EP1800076B1 publication Critical patent/EP1800076B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • 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
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • 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
    • F25D23/00—General constructional features
    • F25D23/006—General constructional features for mounting refrigerating machinery components
    • 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
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/061—Walls with conduit means

Definitions

  • the present invention relates to refrigerators, and more particularly, to a
  • the refrigerator has an inside space maintained below a
  • the refrigerator is provided with a freezing chamber and a refrigerating
  • chamber formed therein for holding things to store, such as food, in predetermined
  • a condenser for condensing the
  • the food holding portion has a refrigerating chamber for cold storage of food
  • the condenser is on an inner side surface of an outer plate that forms side
  • the condenser is mounted
  • FIG. 1 illustrates a tubular condenser 20 on the inner side surface of the outer
  • tubular condenser 20 is secured as polyurethane foam
  • the object of the present invention is to provide a refrigerator in which a heat transfer rate of a condenser is enhanced for improving cooling efficiency.
  • Another object of the present invention is to provide a refrigerator for
  • the object of the present invention can be achieved by providing a refrigerator
  • a body forming an exterior, the body having a food holding portion therein, an
  • edge condenser provided along an edge of the body, for condensing refrigerant, and an
  • evaporator for absorbing heat from the food holding portion.
  • the edge condenser is provided along a rear edge of the body.
  • the edge condenser is provided in an up/down direction along one of Tear
  • the refrigerator further includes a supplementary edge condenser provided in
  • the supplementary edge condenser condenses refrigerant compressed in a
  • the body includes a bent portion provided to the edge of the body for improving rigidity of the body.
  • the bent portion is formed along at least one of the rear opposite
  • the bent portion is projected outwardly from the body so as to be in contact
  • the edge condenser is in the bent portion for condensing refrigerant
  • the edge condenser is in contact with an inside surface of the bent portion, or
  • the evaporator cools down the food holding portion, directly.
  • a refrigerator in another aspect of the present invention, includes a body
  • the body having a food holding portion with a freezing chamber
  • the refrigerator further includes a supplementary edge condenser in the other
  • the side surface condenser is provided to a rear wall of the body, and
  • the body further includes bent portions extended in an up/down direction along
  • the edge condenser has an outside surface in contact with, or in close contact
  • bent portion is projected outwardly from the body such that
  • the evaporator cools down the food holding portion, directly.
  • the edge condenser along an edge of the refrigerator, particularly, along
  • the bent portion having a large contact area with external air permits fast dissipation of a
  • the refrigerator of the present invention has a better energy efficiency
  • FIG. 1 illustrates a section of a condenser in a related art refrigerator
  • FIG. 2 illustrates a perspective view of a refrigerator in accordance with a
  • FIG. 3 illustrates a perspective view of an outer plate portion of a body having
  • FIG. 4 illustrates a section of a variation of a bent portion across I-I line in FIG.
  • FIG. 5 illustrates a section of another variation of a bent portion
  • FIG. 6 illustrates a diagram showing an air flow on an outside of the refrigerator
  • FIG. 7 illustrates a P-h chart comparing refrigerating cycles of refrigerators of
  • FIG. 2 illustrates a perspective
  • the refrigerator 100 includes a body 110 forming an
  • an expanding device (not shown) for expanding refrigerant condensed at the condenser
  • an evaporator (not shown) for evaporating refrigerant expanded at the expanding device
  • a compressor 120 for compressing refrigerant to a predetermined pressure.
  • the bottom of the body 110 for holding the compressor 120.
  • the food holding portion in the body includes a refrigerating
  • the evaporator evaporating refrigerant for cooling the food holding portion
  • the refrigerator 100 described in the embodiment is a direct cooling type
  • the refrigerator may be an indirect cooling type refrigerator which is
  • FIG. 3 illustrates a perspective view of an outer plate portion of a body having
  • FIG. 4 An edge condenser of the refrigerator of the present invention provided thereto, FIG. 4
  • FIG. 5 illustrates a section of a variation of a bent portion across I-I line in FIG. 2, FIG. 5
  • FIG. 6 illustrates a diagram showing an air flow on an outside of the refrigerator of the present invention
  • the condenser includes an edge condenser 210 provided along an edge of the
  • the edge condenser 210 is provided along a rear edge of the body, and the side
  • surface condenser 220 is provided to the rear wall of the body 110, for condensing
  • the edge condenser 210 is mounted along the edge of the body 110, because
  • the edge of the body 110 have a large area of contact with external air, to enable good
  • the refrigerator 100 may further include a supplementary edge
  • the supplementary edge condenser 230 is configured such that the
  • supplementary edge condenser 230 condenses refrigerant passed through the edge
  • the supplementary edge condenser 230 may be configured such that
  • the refrigerant from the compressor 120 may pass through the side surface condenser
  • the compressor 120 is provided with a refrigerant pipe (not shown)
  • the body 110 further includes an outer plate portion 114 which
  • the outer plate portion 114 includes left, right side plates 114a, and
  • bent portion 115 at an edge of the body 110, particularly, at the rear
  • bent portion 115 is formed along at least
  • any one side edge of the rear opposite edges of the body i.e., the rear side edges of the
  • the bent portions 115 are
  • the edge condenser 210 is placed in, and held by the bent portion 115.
  • a variation of the bent portion 115a has an inside surface in contact with an outside surface of the edge condenser 210.
  • the edge condenser 210 is secured to the inside surface of the bent portion 115
  • fastening means such as an aluminum tape (not shown), or compression by the
  • condenser 210 is secured to the rear wall of the body 110 with various fastening means,
  • edge condenser 210 provided to the refrigerator of the present
  • a high pressure at, and discharged from, the compressor 120 is condensed in a saturation
  • a refrigerating cycle of the refrigerator 100 of the present invention will be described
  • the compressor 120 compresses refrigerant to high temperature, and high
  • edge condenser 210 having the super heated refrigerant flowing therethrough
  • FIG. 6 illustrates a diagram of an air flow on an outside of the refrigerator of the
  • the top of the refrigerator 100 has a
  • FIG. 7 illustrates a P-h chart comparing refrigerating cycles of refrigerators of
  • the present invention which has the edge condenser 210 is 36.7 0 C, enabling to increase
  • the heat transfer rate rises by about 20% than a case only the rear
  • condenser is provided at a rear of the refrigerator like the related art.
  • the refrigerator of the present invention has the
  • bent portion having a large contact area with external air permits fast dissipation of a
  • the refrigerator of the present invention has a better energy efficiency and

Landscapes

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

Abstract

Refrigerator (100) including a body (110) forming an exterior, the body having a food holding portion (112, 113) therein, an edge condenser (210) provided along an edge of the body, for condensing refrigerant, and an evaporator for absorbing heat from the food holding portion, thereby improving heat dissipation performance from refrigerant, to improve cooling performance of the refrigerator.

Description

REFRIGERATOR
[Technical Field]
The present invention relates to refrigerators, and more particularly, to a
refrigerator having a condenser with improved heat transfer efficiency.
[Background Art]
In general, the refrigerator has an inside space maintained below a
predetermined temperature by circulation of refrigerant in a refrigerating cycle, for fresh
storage of food, i.e., in a state no decomposition occurs.
That is, the refrigerator is provided with a freezing chamber and a refrigerating
chamber formed therein for holding things to store, such as food, in predetermined
states respectively, and the freezing chamber and the refrigerating chamber freshly store
things to store, such as food, for certain time periods by refrigerant circulating through a
refrigerating cycle of compression, condensing, expansion, and evaporation.
A related art refrigerator having above function is provided with a body
forming an exterior, a food holding portion formed in the body, a machinery room under
the food holding portion, i.e., at a bottom of the body, a condenser for condensing the
refrigerant, and an evaporator for evaporating the refrigerant to cool down the food
holding portion.
The food holding portion has a refrigerating chamber for cold storage of food,
and a freezing chamber under the refrigerating chamber for frozen storage of food. There is a compressor in the machinery room, for compression of refrigerant to a high
pressure.
The condenser is on an inner side surface of an outer plate that forms side
surfaces and a rear surface of the body. Particularly, the condenser is mounted
concentrated on rear of the refrigerating chamber, for minimizing influence of heat from
the condenser to the freezing chamber.
FIG. 1 illustrates a tubular condenser 20 on the inner side surface of the outer
plate 10.
Referring to FIG. 1, the tubular condenser 20 is secured as polyurethane foam
12 is injected for thermal insulation in state the tubular condenser 20 is attached to the
inner side surface of the outer plate 10 with an aluminum tape 11. That is, the condenser
20 is secured buried in the polyurethane foam 12 as the polyurethane foam 12 is set.
However, because the condenser 20 of the related art refrigerator is mounted
concentrated on the rear of the refrigerating chamber for preventing the heat from the
condenser 20 from affecting the freezing chamber, a space for mounting the condenser
is limited, to limit heat dissipation from the condenser accordingly, leading the related
art refrigerator to have a low cooling efficiency.
[Disclosure]
[Technical Problem]
The object of the present invention is to provide a refrigerator in which a heat transfer rate of a condenser is enhanced for improving cooling efficiency.
Another object of the present invention is to provide a refrigerator for
improving rigidity of a body of the refrigerator, which forms an exterior of the
refrigerator.
[Technical Solution]
The object of the present invention can be achieved by providing a refrigerator
including a body forming an exterior, the body having a food holding portion therein, an
edge condenser provided along an edge of the body, for condensing refrigerant, and an
evaporator for absorbing heat from the food holding portion.
The edge condenser is provided along a rear edge of the body.
The edge condenser is provided in an up/down direction along one of Tear
opposite edges of the body for condensing refrigerant compressed to a predetermined
state at a compressor on a bottom of the body.
The refrigerator further includes a supplementary edge condenser provided in
an up/down direction along one of rear opposite edges of the body, for condensing
refrigerant.
The supplementary edge condenser condenses refrigerant compressed in a
predetermined state at, and discharged from the compressor provided on the bottom of
the body.
The body includes a bent portion provided to the edge of the body for improving rigidity of the body.
Preferably, the bent portion is formed along at least one of the rear opposite
edges of the body.
The bent portion is projected outwardly from the body so as to be in contact
with external air at an outside surface thereof.
The edge condenser is in the bent portion for condensing refrigerant
compressed to a predetermined state at, and discharged from, the compressor on the
bottom of the body.
The edge condenser is in contact with an inside surface of the bent portion, or
has an outside surface in close contact with an inside surface of the bent portion.
The evaporator cools down the food holding portion, directly.
In another aspect of the present invention, a refrigerator includes a body
forming an exterior, the body having a food holding portion with a freezing chamber
and a refrigerating chamber, and a machinery room under the food holding portion for
holding a compressor, bent portions formed at opposite rear edges of the body in an
up/down direction, for receiving edge condensers respectively, an edge condenser in one
of bent portions for condensing refrigerant compressed to a predetermined state at the
compressor, a side surface condenser in one side wall of the body for condensing
refrigerant from the edge condenser, and an evaporator for absorbing heat from the food
holding portion. The refrigerator further includes a supplementary edge condenser in the other
one of the bent portions for condensing refrigerant.
The side surface condenser is provided to a rear wall of the body, and
condenses refrigerant passed through the edge condenser, and the supplementary edge
condenser.
The body further includes bent portions extended in an up/down direction along
opposite rear edges of the body, for receiving the edge condenser and the supplementary
edge condenser.
The edge condenser has an outside surface in contact with, or in close contact
with, an inside surface of the bent portion.
It is preferable that the bent portion is projected outwardly from the body such
that an outside surface of the bent portion is in contact with external air.
The evaporator cools down the food holding portion, directly.
[Advantageous Effects]
First, the edge condenser along an edge of the refrigerator, particularly, along
the bent portion having a large contact area with external air permits fast dissipation of a
large quantity of heat to an outside of the refrigerator.
Second, the large quantity of heat dissipation through the edge condenser
permits to reduce a production cost of the refrigerator of the present invention lower
than a refrigerator having other condenser which can dissipate the same quantity of heat. Third, the refrigerator of the present invention has a better energy efficiency
and reduced power consumption owing to the edge condenser.
[Description of Drawings]
The accompanying drawings, which are included to provide a further
understanding of the invention, illustrate embodiment(s) of the invention and together
with the description serve to explain the principle of the invention. In the drawings;
FIG. 1 illustrates a section of a condenser in a related art refrigerator;
FIG. 2 illustrates a perspective view of a refrigerator in accordance with a
preferred embodiment of the present invention;
FIG. 3 illustrates a perspective view of an outer plate portion of a body having
an edge condenser of the refrigerator of the present invention provided thereto;
FIG. 4 illustrates a section of a variation of a bent portion across I-I line in FIG.
2;
FIG. 5 illustrates a section of another variation of a bent portion;
FIG. 6 illustrates a diagram showing an air flow on an outside of the refrigerator
of the present invention, schematically; and
FIG. 7 illustrates a P-h chart comparing refrigerating cycles of refrigerators of
the related art and the present invention.
[Best Mode] Reference will now be made in detail to the preferred embodiments of the
present invention, examples of which are illustrated in the accompanying drawings.
Wherever possible, the same reference numbers will be used throughout the drawings to
refer to the same or like parts.
A refrigerator in accordance with a preferred embodiment of the present
invention will be described with reference to FIG. 2. FIG. 2 illustrates a perspective
view of a refrigerator in accordance with a preferred embodiment of the present
invention.
Referring to FIG. 2, the refrigerator 100 includes a body 110 forming an
exterior of the refrigerator 100, a condenser in the body 110 for condensing refrigerator,
an expanding device (not shown) for expanding refrigerant condensed at the condenser,
an evaporator (not shown) for evaporating refrigerant expanded at the expanding device,
and a compressor 120 for compressing refrigerant to a predetermined pressure.
Inside of the body 110, there are a food holding portion for holding thing to
store, such as food, and a machinery room 111 under the food holding portion, i.e., on
the bottom of the body 110, for holding the compressor 120.
In more detail, the food holding portion in the body includes a refrigerating
chamber 112 for cold storage of food at a predetermined temperature, and a freezing
chamber 113 on one side, particularly, under the refrigerating chamber 112 for frozen
storage of food. On a front of the body 110, there are an upper door HOa3 and a lower door HOb
for opening/closing the refrigerating chamber 112 and the freezing chamber 113,
respectively.
The evaporator, evaporating refrigerant for cooling the food holding portion, is
mounted on a wall of the food holding portion, for absorbing heat from the food holding
portion.
The refrigerator 100 described in the embodiment is a direct cooling type
refrigerator which has an evaporator exposed to an inner side of the food holding
portion, or in contact with an inside wall of the food holding portion for cooling an
inside space of the food holding portion, directly.
Of course, the refrigerator may be an indirect cooling type refrigerator which
has an evaporator mounted in a circulating duct in communication with the food holding
portion for cooling air circulated by a fan (not shown) to cool down the inside space of
the food holding portion.
The condenser of the refrigerator of the present invention will be described,
with reference to FIGS. 3 and 6.
FIG. 3 illustrates a perspective view of an outer plate portion of a body having
an edge condenser of the refrigerator of the present invention provided thereto, FIG. 4
illustrates a section of a variation of a bent portion across I-I line in FIG. 2, FIG. 5
illustrates a section of another variation of a bent portion, and FIG. 6 illustrates a diagram showing an air flow on an outside of the refrigerator of the present invention,
schematically.
The condenser includes an edge condenser 210 provided along an edge of the
body 110 for condensing the refrigerant, and a side surface condenser 220 on one side
wall of the body 110 for condensing refrigerant from the edge condenser 210.
The edge condenser 210 is provided along a rear edge of the body, and the side
surface condenser 220 is provided to the rear wall of the body 110, for condensing
refrigerant compressed to a predetermined state.
The edge condenser 210 is mounted along the edge of the body 110, because
the edge of the body 110 have a large area of contact with external air, to enable good
heat dissipation.
Of course, the refrigerator 100 may further include a supplementary edge
condenser 230 provided opposite to the edge condenser 210, i.e., along the other rear
edge of the body in an up/down direction, for condensing the refrigerant.
The supplementary edge condenser 230 is configured such that the
supplementary edge condenser 230 condenses refrigerant passed through the edge
condenser 210 and the side surface condenser 220.
Of course, the supplementary edge condenser 230 may be configured such that
the refrigerant from the compressor 120 may pass through the side surface condenser
220 after the refrigerant is passed through the supplementary edge condenser 230. In this case, the compressor 120 is provided with a refrigerant pipe (not shown)
to an outlet of the compressor 120 for guiding the refrigerant both to the edge condenser
210 and the supplementary edge condenser 230.
In the meantime, the body 110 further includes an outer plate portion 114 which
forms opposite side surfaces and a top surface.
In this case, the outer plate portion 114 includes left, right side plates 114a, and
114b forming the opposite side surfaces of the body 110, and the top plate 114c forming
the top surface of the body 110.
There is a bent portion 115 at an edge of the body 110, particularly, at the rear
edge of the outer plate 114 for improving rigidity of the body 110.
In more detail, it is preferable that the bent portion 115 is formed along at least
any one side edge of the rear opposite edges of the body, i.e., the rear side edges of the
outer plate portion 114.
That is, for improving strength of the body 110, the bent portions 115 are
formed in an up/down direction along rear edges of the left, and right side surface plates
114a and 114b, respectively.
The edge condenser 210 is placed in, and held by the bent portion 115.
Variations of the bent portion 115 will be described with reference to FIGS. 4
and 5.
Referring to FIG. 4, a variation of the bent portion 115a has an inside surface in contact with an outside surface of the edge condenser 210.
Next, referring to FIG. 5, another variation of the bent portion 115b has an
inside surface in close contact with an outside surface of the edge condenser 210.
It is preferable that a section of the bent portion 115 perpendicular to a length
direction of the bent portion 115 has a "τ= " or " c " shape.
That is, it is preferable that a contact area of the bent portion 115 with external
air is increased for better dissipation of heat from the edge condenser 210.
If the outside surface of the edge condenser 210 is in close contact with the
inside surface of the bent portion 115, to make the edge condenser 210 in surface to
surface contact with the bent portion 115, the heat transfer performance becomes better.
The edge condenser 210 is secured to the inside surface of the bent portion 115
with fastening means, such as an aluminum tape (not shown), or compression by the
inside surface of the bent portion 115.
On the other hand, the side surface condenser 220 connected to the edge
condenser 210 is secured to the rear wall of the body 110 with various fastening means,
such as aluminum tape (not shown).
Thus, since the edge condenser 210 provided to the refrigerator of the present
invention dissipates a large quantity of heat, generated as the refrigerant compressed to
a high pressure at, and discharged from, the compressor 120 is condensed in a saturation
state, to an outside of the refrigerator quickly, a quantity of heat discharged from the side surface condenser 220 is reduced compared to the related art, relatively.
According to this, the drop of heat transfer efficiency of the side surface
condenser 220 caused by interaction of heat discharged from tube lines of the side
surface condenser 220 is prevented.
According to this, spaces of the tube lines of the side surface condenser 220 can
be made smaller, and a mounting range of the side surface condenser 220 can be
expanded to all region of the rear wall, to make heat dissipation from the side surface
condenser 220 greater.
A refrigerating cycle of the refrigerator 100 of the present invention will be
described.
The compressor 120 compresses refrigerant to high temperature, and high
pressure. The refrigerant of a super heated state discharged from an outlet of the
compressor 120 is introduced into the edge condenser 210 in the bent portion 115. Then,
the edge condenser 210 having the super heated refrigerant flowing therethrough
dissipates a large quantity of heat to an outside of the refrigerator through the bent
portion 115.
The large quantity of heat transfer owing to the large contact area between the
edge condenser 210 and the bent portion 115 and the outside surface of the bent portion
115 and external air makes the refrigerant in the edge condenser 210 to reach to a
saturation state of a predetermined dryness, quickly. The refrigerant reached to the saturation state thus is introduced into the
evaporator through the expansion device, involved in an evaporation step at the
evaporator as the refrigerant absorbs heat from the food holding portion, and drawn to
the compressor 120, again.
FIG. 6 illustrates a diagram of an air flow on an outside of the refrigerator of the
present invention indicated with arrows.
A lower portion of the edge condenser 210 into which the refrigerant discharged
from the compressor 120 in a super heated state is introduced has a relatively high
temperature, with a highest rate of heat dissipation, and gives almost no influence to the
freezing chamber 113 even if a large quantity of heat is dissipated as the edge condenser
210 is mounted along the edge of the body 110.
The external air having heat absorbed from the lower portion of the edge
condenser 210, and the external air heated by the side surface condenser 220 rise
upward, and air over the refrigerator 100 falls down drawing an arc.
According to this, a portion of the air at each side of the refrigerator 100 flows
toward the edge condenser 210 from the sides of the edge condenser 210 under the
influence of the rising air heated by the edge condenser 210, and the air falling down
from an upper portion of the refrigerator 100.
A portion of cold external air flows to rear of the body 110, and heated by the
side surface condenser 220. In the meantime, no condenser may be mounted on the top of the refrigerator
100, because the top of the refrigerator 100 is in contact with high temperature air
heated by the side surface condenser 220 and rising, the top of the refrigerator 100 has a
poor heat dissipation effect.
FIG. 7 illustrates a P-h chart comparing refrigerating cycles of refrigerators of
the related art and the present invention.
Referring to FIG. 7, even if a saturation temperature of the refrigerant in a
condensing step of the related art refrigerator which only has the rear condenser is 38.2°
C, a saturation temperature of the refrigerant in a condensing step of the refrigerator of
the present invention which has the edge condenser 210 is 36.70C, enabling to increase
heat dissipation from the condenser by 1.50C compared to a case only the rear
condenser is used. It can also be noted in the experiment that the saturation temperature
at the evaporator also drops from -33.80C to 34.70C.
As a result of the experiment, in a case the edge condenser is provided
additionally, the heat transfer rate rises by about 20% than a case only the rear
condenser is provided at a rear of the refrigerator like the related art.
Moreover, if the supplementary edge condenser 230 is provided additionally for
passing the refrigerant passed through the side surface condenser 220 together with the
edge condenser 210, it can be noted that, even if it is small, the saturation temperatures
both in the condensing step and the evaporation step of the refrigerating cycle having the edge condenser 210 become further low.
However, in view of saving material cost of the condenser, an adequate heat
dissipation effect can be expected even if the supplementary edge condenser 230 is not
provided.
Although the invention has been described in conjunction with specific
embodiments, it is evident that many alternatives and variations will be apparent to
those skilled in the art in light of the foregoing description. Accordingly, the invention is
intended to embrace all of the alternatives and variations that fall within the spirit and
scope of the appended claims.
[Industrial Applicability]
As has been described, the refrigerator of the present invention has the
following advantages.
The edge condenser along an edge of the refrigerator, particularly, along the
bent portion having a large contact area with external air permits fast dissipation of a
large quantity of heat to an outside of the refrigerator.
The large quantity of heat dissipation through the edge condenser permits to
reduce a production cost of the refrigerator of the present invention lower than a
refrigerator having other condenser which can dissipate the same quantity of heat.
The refrigerator of the present invention has a better energy efficiency and
reduced power consumption owing to the edge condenser.

Claims

[CLAIMS]
[Claim 1] A refrigerator comprising:
a body forming an exterior, the body having a food holding portion therein;
an edge condenser provided along an edge of the body, for condensing
refrigerant; and
an evaporator for absorbing heat from the food holding portion.
[Claim 2] The refrigerator as claimed in claim 1, wherein the edge condenser is
provided along a rear edge of the body.
[Claim 3] The refrigerator as claimed in claim 2, wherein the edge condenser is
provided in an up/down direction along one of rear opposite edges of the body for
condensing refrigerant compressed to a predetermined state at a compressor on a bottom
of the body.
[Claim 4] The refrigerator as claimed in claim 3, further comprising a
supplementary edge condenser provided in an up/down direction along one of rear
opposite edges of the body, for condensing refrigerant.
[Claim 5] The refrigerator as claimed in claim 4, wherein the supplementary edge condenser condenses refrigerant compressed in a predetermined state at, and
discharged from the compressor provided on the bottom of the body.
[Claim 6] The refrigerator as claimed in claim 1, wherein the body includes a
bent portion provided to the edge of the body for improving rigidity of the body.
[Claim 7] The refrigerator as claimed in claim 6, wherein the bent portion is
formed along at least one of the rear opposite edges of the body.
[Claim 8] The refrigerator as claimed in claim 6, wherein the bent portion is
formed along a rear edge of one of opposite side plates which form opposite sides of the
body.
[Claim 9] The refrigerator as claimed in claim 6, wherein the edge condenser is
in the bent portion for condensing refrigerant compressed to a predetermined state at,
and discharged from, the compressor on the bottom of the body.
[Claim 10] The refrigerator as claimed in claim 9, wherein the edge condenser
is in contact with an inside surface of the bent portion.
[Claim 11] The refrigerator as claimed in claim 9, wherein the edge condenser
has an outside surface in close contact with an inside surface of the bent portion.
[Claim 12] The refrigerator as claimed in claim 9, wherein the bent portion has
a "1^ " or "C " shaped section perpendicular to a length direction of the bent portion.
[Claim 13] The refrigerator as claimed in claim 1, wherein the evaporator cools
down the food holding portion, directly.
[Claim 14] A refrigerator comprising:
a body forming an exterior, the body having a food holding portion with a
freezing chamber and a refrigerating chamber, and a machinery room under the food
holding portion for holding a compressor;
bent portions formed at opposite rear edges of the body in an up/down direction,
for receiving edge condensers, respectively;
an edge condenser in one of bent portions for condensing refrigerant
compressed to a predetermined state at the compressor;
a side surface condenser in one side wall of the body for condensing refrigerant
from the edge condenser; and
an evaporator for absorbing heat from the food holding portion.
[Claim 15] The refrigerator as claimed in claim 14, further comprising a
supplementary edge condenser in the other one of the bent portions for condensing
refrigerant.
[Claim 16] The refrigerator as claimed in claim 14, wherein the side surface
condenser is provided to a rear wall of the body.
[Claim 17] The refrigerator as claimed in claim 16, wherein the side surface
condenser condenses refrigerant passed through the edge condenser, and the
supplementary edge condenser.
[Claim 18] The refrigerator as claimed in claim 14, wherein the edge condenser
has an outside surface in contact with, or in close contact with, an inside surface of the
bent portion.
[Claim 19] The refrigerator as claimed in claim 14, wherein the bent portion has
a "c: " or "C " shaped section perpendicular to a length direction of the bent portion.
[Claim 20] The refrigerator as claimed in claim 14, wherein the evaporator cools down the food holding portion, directly.
EP05789808A 2004-10-14 2005-04-01 Refrigerator Active EP1800076B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05789808T PL1800076T3 (en) 2004-10-14 2005-04-01 Refrigerator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020040082160A KR100606847B1 (en) 2004-10-14 2004-10-14 condensor installation structure of machine room in refrigerator
PCT/KR2005/000962 WO2006041246A1 (en) 2004-10-14 2005-04-01 Refrigerator

Publications (2)

Publication Number Publication Date
EP1800076A1 true EP1800076A1 (en) 2007-06-27
EP1800076B1 EP1800076B1 (en) 2012-02-22

Family

ID=36148522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05789808A Active EP1800076B1 (en) 2004-10-14 2005-04-01 Refrigerator

Country Status (7)

Country Link
EP (1) EP1800076B1 (en)
KR (1) KR100606847B1 (en)
CN (1) CN100538231C (en)
AT (1) ATE546700T1 (en)
ES (1) ES2378773T3 (en)
PL (1) PL1800076T3 (en)
WO (1) WO2006041246A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011074226A1 (en) * 2009-12-16 2011-06-23 パナソニック株式会社 Refrigerator
IT1398991B1 (en) * 2010-02-23 2013-03-28 Mondial Group Srl HIGH EFFICIENCY REFRIGERATOR UNIT.
DE102010040073A1 (en) * 2010-08-31 2012-03-01 BSH Bosch und Siemens Hausgeräte GmbH The refrigerator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114065A (en) 1976-12-09 1978-09-12 General Electric Company Refrigerator cabinet and method of constructing
PL369460A1 (en) 2001-11-20 2005-04-18 Multibras S.A.Eletrodomesticos Condenser for refrigeration systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006041246A1 *

Also Published As

Publication number Publication date
KR100606847B1 (en) 2006-08-01
CN100538231C (en) 2009-09-09
WO2006041246A1 (en) 2006-04-20
ES2378773T3 (en) 2012-04-17
EP1800076B1 (en) 2012-02-22
PL1800076T3 (en) 2012-07-31
KR20060033186A (en) 2006-04-19
CN101040157A (en) 2007-09-19
ATE546700T1 (en) 2012-03-15

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