CN101040157A

CN101040157A - Refrigerator

Info

Publication number: CN101040157A
Application number: CNA2005800352461A
Authority: CN
Inventors: 辛钟玟; 卢铁基; 金贤; 姜成熙; 黄畯铉; 金钟权
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2004-10-14
Filing date: 2005-04-01
Publication date: 2007-09-19
Anticipated expiration: 2025-04-01
Also published as: ES2378773T3; KR100606847B1; PL1800076T3; ATE546700T1; KR20060033186A; EP1800076B1; WO2006041246A1; CN100538231C; EP1800076A1

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 refrigerator, and relate more specifically to have the refrigerator of condenser of the heat transfer efficiency of raising.

Background technology

Usually, refrigerator has the inner space, and it remains on below the predetermined temperature by the circulation of the cold-producing medium in the kind of refrigeration cycle, is used for the fresh-keeping of food, promptly is in the state that does not take place to rot.

In other words, refrigerator is furnished with formation refrigerating chamber and refrigerating chamber wherein, be used for respectively the article to be stored of for example food are remained on predetermined state, and refrigerating chamber and refrigerating chamber are stored the certain hour section by the kind of refrigeration cycle of cold-producing medium circulation through overcompression, condensation, expansion and evaporation with the article to be stored of for example food freshly.

Prior art refrigerator with above-mentioned functions is provided with: the main body that forms appearance; Be formed on the food retaining part in the main body; Below the food retaining part, promptly in the machine chamber of bottom part body; Be used for the condenser of condensating refrigerant; Be used for the evaporimeter of vaporized refrigerant with the cooling beverage or food retaining part.

The food retaining part has and is used for the refrigerating chamber of chilled food, and refrigerating chamber, and it is used for the food that keeps in cold storage below refrigerating chamber.Compressor is arranged in the machine chamber, be used for cold-producing medium is compressed to high pressure conditions.

Condenser is on the inner surface of the outside plate at the side that forms main body and the back side.Particularly, condenser is installed concentratedly the rear portion at refrigerating chamber, is used for making the influence of the heat from the condenser to the refrigerating chamber to minimize.

Fig. 1 illustrates the tubular cold condenser 20 on the medial surface of outside plate 10.

With reference to figure 1, when injecting polyurethane foam 12 and be used for heat insulation, tubular cold condenser 20 is fixed to following state, and promptly tubular cold condenser 20 utilizes aluminium strip 11 and is connected to the medial surface of outside plate 10.In other words, when polyurethane foam 12 was set, condenser 20 was fixed to bury and overlays in the polyurethane foam 12.

Yet, because the condenser 20 of prior art refrigerator is installed concentratedly the rear portion at refrigerating chamber, to prevent arriving refrigerating chamber from the heat affecting of condenser 20, thereby be used for installing the limited space of condenser, therefore limit the heat radiation of condenser, caused the refrigerator of prior art to have lower cooling effectiveness.

Summary of the invention

The purpose of this invention is to provide a kind of refrigerator, in this refrigerator, improved the rate of heat transfer of condenser, to improve cooling effectiveness.

Another object of the present invention provides a kind of refrigerator, is used for improving the rigidity of the refrigerator main body that forms fridge exterior.

Technical scheme

By providing a kind of refrigerator can realize purpose of the present invention, this refrigerator comprises: form the main body of appearance, this main body portion within it has the food retaining part, the edge condenser, it is along the edge placement of main body, is used for condensating refrigerant, and evaporimeter, it is used for absorbing heat from the food retaining part.

The edge condenser is arranged along the rear part edge of main body.

The edge condenser by last/below a edge placement in the opposite edges of the rear portion of upper edge main body, be used for being condensate in the cold-producing medium that the compressor place that is positioned on the bottom part body is compressed to predetermined state.

This refrigerator also comprises the assistant edge condenser, this assistant edge condenser last/below a edge placement in the opposite edges of the rear portion of upper edge main body, be used for condensating refrigerant.

This assistant edge condenser condenses cold-producing medium, this cold-producing medium is compressed to predetermined state and discharges from this compressor at the compressor that is arranged in bottom part body.

Main body comprises sweep, and this sweep is arranged into body rim, to improve the rigidity of main body.

Preferably, sweep is along at least one formation in the rear portion opposite edges of main body.

Sweep is outwards outstanding from main body, so that sweep is contacted with extraneous air in its outside.

This edge condenser is in the sweep, is used for condensating refrigerant, and this cold-producing medium is compressed to predetermined state and discharges from this compressor in the compressor of bottom part body.

The edge condenser contacts with the inner surface of sweep, or has the outer surface that closely contacts with the inner surface of sweep.

The direct cooling beverage or food retaining part of evaporimeter.

In another aspect of this invention, a kind of refrigerator comprises: the main body that forms appearance, this main body has the food retaining part of band refrigerating chamber and refrigerating chamber and is positioned at the food retaining part machine chamber below, that be used for keeping compressor: some sweeps, these sweeps upwards are formed on the relative rear part edge place of main body along last/below, be used for the receiving edges condenser respectively; Edge condenser in sweep is used for the cold-producing medium that is compressed to predetermined state in compressor is carried out condensation therein; Be arranged in the lateral condenser of a sidewall of main body, be used for the cold-producing medium of condensation from the edge condenser; And evaporimeter, be used for absorbing heat from the food retaining part.

Described refrigerator also is included in assistant edge condenser in another sweep, that be used for condensating refrigerant.

Lateral condenser is arranged to the rear wall of main body, and the cold-producing medium by edge condenser and assistant edge condenser is carried out condensation.

This refrigerator also comprises sweep, this sweep by last/below arrange to the rear portion of upper edge main body opposite edges, be used for admitting edge condenser and assistant edge condenser.

The edge condenser has with the inner surface of sweep and contacts, or the tight outer surface of contact.

Preferably, sweep is outwards outstanding from main body, makes the outer surface of sweep contact with extraneous air.

The direct cooling beverage or food retaining part of evaporimeter.

Advantageous effects

The first, along the edge of refrigerator, particularly allow a large amount of heats to be dispersed into the refrigerator outside fast along condenser with the sweep that amasss with the extraneous air large contact surface.

The second, by a large amount of heat diffusion of edge condenser, allow to reduce the production cost of refrigerator of the present invention, it is lower than has the refrigerator that can distribute with other condenser of calorimetric amount.

The 3rd, because the edge condenser, refrigerator of the present invention has energy efficiency and the power consumption that reduces preferably.

Description of drawings

The involved accompanying drawing that is used to provide further understanding of the present invention illustrates some embodiment of the present invention, and accompanying drawing and describe part one and be used from explanation principle of the present invention.In the accompanying drawings:

Fig. 1 illustrates the part of the condenser in the prior art refrigerator;

Fig. 2 illustrates the perspective view of refrigerator according to the preferred embodiment of the invention;

Fig. 3 illustrates the perspective view of outer plate portion of the main body of the edge condenser with refrigerator of the present invention;

Fig. 4 illustrates along the cross section of a kind of variant of the sweep of the I-I line crosscut among Fig. 2;

Fig. 5 illustrates the cross section of another variant of sweep;

The figure of the air outside stream of the schematically illustrated demonstration of Fig. 6 refrigerator of the present invention; With

Fig. 7 illustrates the P-h chart of the kind of refrigeration cycle of contrast prior art and refrigerator of the present invention.

The specific embodiment

Now will be in detail with reference to the preferred embodiments of the present invention, example of the present invention is as shown in drawings.Under possible situation, in institute's drawings attached, will use identical Reference numeral to represent same or analogous part.

Below in conjunction with accompanying drawing 2 refrigerator is according to the preferred embodiment of the invention described.Figure 2 shows that the perspective view of refrigerator according to the preferred embodiment of the invention.

With reference to figure 2, refrigerator 100 comprises: the main body 110 that forms the appearance of refrigerator 100; Be arranged in condenser main body 110, that be used for condensating refrigerant; Be used for making and in condenser, be subjected to the expansion gear (not shown) that condensed refrigerant expands; Be used for evaporimeter (not shown) that the cold-producing medium that expands is evaporated in expansion gear; Be used for cold-producing medium is compressed to the compressor 120 of predetermined pressure.

Have in main body 110 inside and to be used for keeping for example food retaining part for the treatment of stored article of food, and below the food retaining part, promptly the bottom of main body 110 has the machine chamber 111 that is used for keeping compressor 120.

More specifically, the food retaining part in the main body comprises and is used for the refrigerating chamber 112 of chilled food under predetermined temperature, and in a side, particularly below refrigerating chamber 112, has the refrigerating chamber 113 of the food that is used for keeping in cold storage.

110a and Xiamen 110b are to the doorstep arranged in the front portion of main body 110, be used for opening/closing refrigerating chamber 112 and refrigerating chamber 113 respectively.

The evaporimeter that cold-producing medium is evaporated with the cooling beverage or food retaining part is installed on the wall of food retaining part, is used for absorbing the heat from the food retaining part.

The refrigerator 100 of Miao Shuing is a direct cooling refrigerator in this embodiment, and it has evaporimeter, and this evaporimeter is exposed to the inboard of food retaining part or the direct inwall of contacting foodstuff retaining part, is used for the inner space of direct cooling beverage or food retaining part.

Certainly, refrigerator can be non-direct cooling refrigerator, and it has evaporimeter, and this evaporimeter is installed in the circulating line that is communicated with the food retaining part, is used for cooling off the air by the circulation of fan (not shown), thus the inner space of cooling beverage or food retaining part.

The condenser of refrigerator of the present invention will be described in conjunction with Fig. 3 and 6.

Figure 3 shows that the perspective view of the outer plate portion of main body, described main body has the edge condenser of refrigerator of the present invention, Fig. 4 illustrates along the cross section of a kind of variant of the sweep of the I-I line crosscut among Fig. 2, Fig. 5 illustrates the cross section of another variant of sweep, and the figure of the stream of the air on the outside of the schematically illustrated demonstration of Fig. 6 refrigerator of the present invention.

Condenser comprises along edge condenser 210 edge placement of main body 110, that be used for condensating refrigerant, and be arranged on the sidewall of main body 110, be used for the lateral condenser 220 of condensation from the cold-producing medium of edge condenser 210.

Edge condenser 210 is arranged along the rear part edge of main body, and lateral condenser 220 is arranged into the rear wall of main body 110, is used for condensation to be compressed to the cold-producing medium of predetermined state.

Edge condenser 210 is installed by the edge along main body 110, because the contact area of the edge of main body 110 and extraneous air is bigger, therefore can realize good heat radiation.

Certainly, refrigerator 100 also can comprise assistant edge condenser 230, and this assistant edge condenser 230 is arranged to relative with edge condenser 210, promptly last/below be provided with to another rear part edge of upper edge main body, be used for condensating refrigerant.

Assistant edge condenser 230 is configured such that the cold-producing medium that 230 pairs of assistant edge condensers pass edge condenser 210 and lateral condenser 220 carries out condensation.

Certainly, assistant edge condenser 230 can be configured such that the cold-producing medium from compressor 120 can pass lateral condenser 220 after passing assistant edge condenser 230.

In this case, compressor 120 is furnished with the refrigerant pipe (not shown) that leads to compressor 120 outlets, is used for cold-producing medium is directed to edge condenser 210 and assistant edge condenser 230.

Simultaneously, main body 110 also comprises and forms the relative side and the outer plate portion 114 of end face.

In this case, outer plate portion 114 comprises the left and right side plate 114a and the 114b of the opposite flank that forms main body 110, and the top board 114c that forms the end face of main body 110.

In the edge of main body 110, at the rear part edge place of outside plate 114, have sweep 115 particularly, be used for improving the rigidity of main body 110.

More specifically, preferably, at least one in the either side edge of the rear portion opposite edges (posterior edges of plate portion 114 promptly) of main body forms described sweep 115.

In other words, in order to improve the intensity of main body 110, last/below form described sweep 115 to the rear part edge of left side, upper edge and

right panel

114a and 114b.

Edge condenser 210 is placed in the sweep 115 and by this sweep 115 and keeps.

The variant of sweep 115 will be described in conjunction with Figure 4 and 5.

With reference to figure 4, a kind of variant of sweep 115a has the inner surface that contacts with the outer surface of edge condenser 210.

Below with reference to Fig. 5, the another kind of variant of sweep 115b has the inner surface that contacts with the intimate of edge condenser 210.

Preferably, one section the shape with " Contraband " or "  " vertical of sweep 115 with its length direction.

In other words, preferably, increased the contact area of sweep 115, so that dissipate better from the heat of edge condenser 210 with extraneous air.

If the outer surface of edge condenser 210 closely contacts with the inner surface of sweep 115, make edge condenser 210 produce the surface and contact that then heat transfer property becomes better with sweep 115.

Edge condenser 210 is by for example such fastener of aluminium strip (not shown), or the extruding of the inner surface by sweep 115, thereby is fixed to the inner surface of sweep 115.

On the other hand, the lateral condenser 220 that is connected to edge condenser 210 is fixed to the rear wall of main body 110 by the so various fasteners of for example aluminium strip (not shown).

Like this, (when the cold-producing medium that is compressed to by compressor 120 high pressure under and discharges from compressor issues raw food generation with fixed attention the time in saturation state) is dispersed into the refrigerator outside fast because being arranged into the edge condenser 210 of refrigerator of the present invention will a large amount of heat, thereby compared with prior art, the heat of condenser 220 discharges from the side reduces relatively.

In view of the above, prevented the decline of the heat transfer efficiency of the lateral condenser 220 that the interaction of the heat of discharging owing to the pipeline of condenser 220 from the side causes.

In view of the above, can make the space of the pipeline of lateral condenser 220 do forr a short time, and the fitting limit of lateral condenser 220 can expand to the All Ranges of rear wall, so that the heat diffusion of condenser 220 is bigger from the side.

To the kind of refrigeration cycle of refrigerator 100 of the present invention be described.

Compressor 120 is compressed to cold-producing medium under the HTHP.Cold-producing medium under the superthermal state that the outlet of compressor 120 is discharged is introduced into the edge condenser 210 the sweep 115.Then, make the cold-producing medium under the superthermal state pass through sweep 115 with the outside of a large amount of heat diffusion to refrigerator from the edge condenser 210 that wherein passes through.

Cause a large amount of heat transmission because the outer surface of edge condenser 210 and sweep 115 and sweep 115 and the large contact surface between the extraneous air are long-pending, make that the cold-producing medium in the edge condenser 210 reaches the saturation state of being scheduled under the aridity fast.

Thereby the cold-producing medium of the state that reaches capacity is introduced into evaporimeter by expansion gear, enters evaporation step, and at the evaporimeter place, cold-producing medium absorbs the heat from the food retaining part, and is drawn to compressor 120 once more.

Fig. 6 illustrates the sketch of the air outside stream of the refrigerator of representing with arrow of the present invention.

The bottom that is introduced into edge condenser 210 wherein from compressor 120 cold-producing mediums that discharge, that be in superthermal state has higher relatively temperature and the highest thermal diffusion speed, even and spread a large amount of heats, also influence refrigerating chamber 113 hardly, this is because edge condenser 210 is installed by the edge along main body 110.

Extraneous air that absorbs heat from the bottom of edge condenser 210 and the upwards rise of extraneous air of being heated by lateral condenser 220, and the air of refrigerator 100 tops descends, thus draw an arc.

In view of the above, under by the ascending air of edge condenser 210 heating and the air influence that descends from the top of refrigerator 100, the part of air of refrigerator 100 every sides has flowed to edge condenser 210 from the side of edge condenser 210.

The cold extraneous air of a part flows to the rear portion of main body 110, and by lateral condenser 220 heating.

Simultaneously, at the top of refrigerator 100 condenser is not installed, because the top of refrigerator 100 contacts with the high temperature air that is heated by lateral condenser 220 and rise, so the heat diffusion effect at the top of refrigerator 100 is relatively poor.

With reference to figure 7, even only having the saturation temperature of the cold-producing medium in the condensing steps of prior art refrigerator of rear portion condenser is 38.2 ℃, the cold-producing medium saturation temperature that has in the condensing steps of refrigerator of the present invention of edge condenser 210 is 36.7 ℃, compare with the situation of only using the rear portion condenser, can increase by 1.5 ℃ thermal diffusion from condenser.The saturation temperature that it is further noted that the evaporimeter place in experiment also is reduced to 34.7 ℃ from-33.8 ℃.

As experimental result, and only provide the situation of rear portion condenser to compare at the rear portion of refrigerator as prior art, under the situation that extra edge condenser is provided, heet transfer rate rises about 20%.

And, if provide assistant edge condenser 230 to be used for transmitting the cold-producing medium that flows through lateral condenser 220 in addition with edge condenser 210, even it is then less, but it may be noted that also condensing steps and the saturation temperature in the evaporation step in the kind of refrigeration cycle with edge condenser 210 all become lower.

Yet, consider the material cost of saving condenser, even assistant edge condenser 230 is not provided, also can expect enough thermal diffusion effects.

Though described the present invention in conjunction with specific embodiments, be apparent that for those skilled in the art, according to foregoing description, many possibilities and variant will be obvious.Therefore, the present invention is intended to comprise main idea and interior all possibilities and the variant of scope that drops on claims.

Industrial applicibility

As has been described, refrigerator of the present invention has the following advantages.

Along the edge of refrigerator, particularly along having the bend long-pending than large contact surface with extraneous air Divide the layout condenser, allow a large amount of heats to be diffused rapidly to the refrigerator outside.

Amount of heat diffusion by the edge condenser allows to reduce the production of refrigerator of the present invention Cost is lower than it and has the refrigerator that can spread with other condenser of the heat of measuring.

Because edge condenser, refrigerator of the present invention have preferably energy efficiency and the merit that reduces Rate consumes.

Claims

1. refrigerator comprises:

Form the main body of appearance, this main body portion within it has the food retaining part;

Along the edge condenser of the edge placement of this main body, be used for condensating refrigerant; With

Be used for from the evaporimeter of this food retaining part heat absorption.

2. refrigerator as claimed in claim 1, wherein said edge condenser is arranged along the rear part edge of described main body.

3. refrigerator as claimed in claim 2, wherein said edge condenser by last/below a layout in the rear portion opposite edges of described main body upwards, be used for being condensate in the cold-producing medium that compressor place on the described bottom part body is compressed to predetermined state.

4. refrigerator as claimed in claim 3 wherein also comprises the assistant edge condenser, this assistant edge condenser by last/below a layout in the rear portion opposite edges of described main body upwards, be used for condensating refrigerant.

5. refrigerator as claimed in claim 4, wherein said assistant edge condenser carries out condensation to cold-producing medium, and the compressor place of this cold-producing medium on being arranged in described bottom part body is compressed under the predetermined state and from this compressor and discharges.

6. refrigerator as claimed in claim 1, wherein said main body comprises sweep, this sweep is arranged into the edge of described main body, to improve the rigidity of described main body.

7. refrigerator as claimed in claim 6, wherein said sweep is along at least one formation in the rear portion opposite edges of described main body.

8. refrigerator as claimed in claim 6, wherein said sweep forms along one rear part edge in the relative side plate of the opposite flank that forms described main body.

9. refrigerator as claimed in claim 6, wherein said edge condenser is arranged in described sweep, is used for condensating refrigerant, and this cold-producing medium is compressed to predetermined state at the compressor place of described bottom part body and discharges from this compressor.

10. refrigerator as claimed in claim 9, wherein said edge condenser contacts with the inner surface of described sweep.

11. refrigerator as claimed in claim 9, wherein said edge condenser have the outer surface that closely contacts with the inner surface of described sweep.

12. refrigerator as claimed in claim 9, wherein said sweep have perpendicular to " Contraband " shape of its length direction or "  " shape part.

13. refrigerator as claimed in claim 1, wherein said evaporimeter directly cool off described food retaining part.

14. a refrigerator comprises:

Form the main body of appearance, this main body has the food retaining part of configuration refrigerating chamber and refrigerating chamber and is positioned at this food retaining part machine chamber below, that be used for keeping compressor;

Some sweeps, it to the relative rear part edge place that is formed at this main body, is used for the receiving edges condenser along last/below respectively;

Edge condenser in sweep is used for the cold-producing medium that is compressed to predetermined state at described compressor place is carried out condensation therein;

Lateral condenser in a sidewall of described main body is used for the cold-producing medium from described edge condenser is carried out condensation; With

Be used for from the evaporimeter of this food retaining part heat absorption.

15. refrigerator as claimed in claim 14 wherein also is included in the assistant edge condenser in another of described sweep, is used for condensating refrigerant.

16. refrigerator as claimed in claim 14, wherein said lateral condenser is arranged into the rear wall of described main body.

17. refrigerator as claimed in claim 16, wherein said lateral condenser carries out condensation to the cold-producing medium by described edge condenser and described assistant edge condenser.

18. refrigerator as claimed in claim 14, wherein said edge condenser have the outer surface that contacts or closely contact with the inner surface of described sweep.

19. refrigerator as claimed in claim 14, wherein said sweep have perpendicular to " Contraband " shape of its length direction or "  " shape part.

20. refrigerator as claimed in claim 14, wherein said evaporimeter directly cool off described food retaining part.