CN101153762B

CN101153762B - Refrigerating system of multi-door refrigerator

Info

Publication number: CN101153762B
Application number: CN2006101270997A
Authority: CN
Inventors: 王东宁; 王晔; 吴敏; 张书峰
Original assignee: Haier Group Corp; Qingdao Haier Co Ltd
Current assignee: Haier Group Corp; Qingdao Haier Co Ltd
Priority date: 2006-09-28
Filing date: 2006-09-28
Publication date: 2011-11-09
Anticipated expiration: 2026-09-28
Also published as: CN101153762A

Abstract

The invention discloses a multi-door refrigerator refrigeration system comprises a compressor, a silencer, a condenser, a dew removal pipe, a dry filter, a capillary, an evaporator, an air return tube and a connecting pipe. The invention is characterized in that the condenser comprises a bottom condenser, a back condenser and a U shell condenser, the compressor, the silencer, the bottom condenser, the back condenser, the U shell condenser, the dew removal pipe, the dry filter, the capillary, the evaporator, the air return tube, the connecting tube and the compressor are orderly connected with pipes to form a circulating closed pathway, wherein, the bottom condenser is horizontally arranged in a compressor chamber at the bottom of the refrigerator and provided with radiating fins on the pipe, the back condenser is attached on the edge of a plate at the back of the refrigerator by adopting a square design, the U shell condenser is closely attached at a bending position of the U shell plate and close to a side of the back plate by adopting an integrated design of single heel pipe. The invention only uses one evaporator, single system to achieve requirements of multi-temperature zones, and solder points designed have small amount, so that a feedback rate of welding leakage is reduced, and noise is reduced.

Description

Multi-door refrigerator refrigerating system

Technical Field

The invention relates to a refrigeration system of a refrigerator, in particular to a multi-door refrigeration system of a refrigerator, which only uses one evaporator, realizes the requirement of multiple temperature zones by a single system, is provided with a plurality of condensers, has few welding spots and has low noise.

Background

A common refrigerating and freezing box, which is a common double-door double-temperature, three-door three-temperature and cabinet type multi-door refrigerator, is provided with an independent outer door of a freezing chamber, the volume of the freezing chamber is larger and is about 1/4-1/2 of the total volume, more frozen food can be stored, and some refrigerating chambers are also provided with compartments and doors so as to be separately stored according to different storage temperatures of the food.

The refrigerator refrigerating system usually uses electromagnetic valve to control the flow direction of refrigerant, and respectively supplies refrigerant to every cold storage (freezing) chamber to make every space of refrigerator be cooled to required temperature, and the two-position three-way electromagnetic valve is adopted by general double-door double-temperature double-control refrigerator to respectively control the refrigerant supplied to cold storage chamber and freezing chamber. Along with the improvement of living standard of people, people put forward higher requirements on the refrigerator, for example, in order to enable the refrigerator to be more suitable for the refrigeration of various foods, an ice-cold room (a fruit room and a vegetable thinning room) is additionally arranged on the refrigerator and is used for refrigerating foods with higher refrigerating temperature such as fruits, vegetables and the like, so that a three-temperature three-control three-door refrigerator or a refrigerator with more rooms is provided.

The most adoption multi-system design of present big volume multi-door refrigerator uses solenoid valve and two or more evaporimeters, and is with very high costs, and in addition, the attached VIP board in its curb plate back, general condenser adopt air-cooled heat dissipation, condenser concentrate on compression cabin one side, and the noise is very big, also makes the compression cabin space very little, need install the computer board on the back, causes the back foaming layer attenuate like this, takes place the condensation phenomenon easily.

The Chinese patent with application number 200420027189.5 discloses a three-circulation air-direct-cooling four-temperature-zone refrigerator, which comprises a refrigerator body and a refrigerating system, wherein the refrigerator body is provided with a refrigerating chamber, a freezing chamber, a soft freezing chamber and an ice-temperature 4 chamber, the refrigerating system is an air-direct-cooling hybrid system and comprises a fan, a fan air duct, a refrigerating chamber, a freezing chamber and ice-temperature chamber evaporator, a compressor, a condenser, a capillary tube and an electromagnetic valve, the fan air duct is arranged between the soft freezing chamber and the refrigerating chamber, the fan is arranged in the soft freezing chamber, an outlet of the freezing chamber evaporator is connected with an outlet of the refrigerating chamber evaporator or the ice-temperature chamber evaporator in parallel and connected with an inlet of the compressor, an outlet of the compressor is connected with the condenser through a connecting pipeline, an outlet of the condenser passes through a two-position three-way electromagnetic valve A, the capillary tube passes through an inlet of the refrigerating, The evaporator of the ice-cold room or the evaporator of the cold room is connected with the inlet of the evaporator of the freezing room, and the other path is directly connected with the inlet of the evaporator of the freezing room through a capillary tube.

The chinese patent with application number 200420027309.1 discloses a refrigerator with three-cycle refrigerating system, which comprises a box body and three-cycle refrigerating system, wherein a freezing chamber and a temperature-changing chamber are arranged in the box body, three chambers of the freezing chamber are provided, the three-cycle refrigerating system comprises an evaporator I, an evaporator II, an evaporator III, a two-bit three-way pulse electromagnetic valve I, a two-bit three-way pulse electromagnetic valve II and is characterized in that the evaporator I, the evaporator II and the evaporator III respectively correspond to the freezing chamber, the temperature-changing chamber and any chamber in the freezing chamber.

The two refrigerator refrigerating systems adopt a plurality of circulating systems and a plurality of evaporators, so that the structure is complex, the cost is high, and the installation and maintenance are inconvenient.

Chinese patent application No. 02120766.6 discloses a double condenser refrigerator including a body, a freezing chamber, a refrigerating chamber and a machine chamber; the compressor is arranged in the mechanical chamber; the condenser is arranged in the mechanical chamber and enables the compressed refrigerant to release heat; the inflow side and the outflow side of the condenser are communicated, and a metal pipe is introduced along the connecting part of the front openings of the freezing chamber and the refrigerating chamber; the rear condenser is branched from the outflow side of the condenser and is arranged on the rear wall of the body; the evaporator is arranged at the rear of the freezing chamber, and flows into the freezing chamber through a metal pipe of the freezing chamber and a refrigerant of the post condenser for cooling; communicating expansion devices with each other on an inflow side of the evaporator; a condensation temperature detection sensor is arranged in the inflow direction of the refrigerant; setting valve in the condenser to make the refrigerant flow to the metal pipe or the post-condenser; and a control part for controlling the valve based on the detection result of the condensation temperature detection sensor.

Although the refrigerator is provided with a plurality of condensers, the refrigerator has the following defects that firstly, the bottom condenser is vertically designed at one side of the compressor, the space in a mechanical chamber is not reduced, in addition, the rear condenser is arranged on the rear wall of the refrigerator in a coil pipe mode, although the length of the condenser pipe is enough, the attachment of a VIP plate of the refrigerator is influenced.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a multi-door refrigerator refrigerating system which is provided with a plurality of condensers, has few welding spots and low noise and only uses one evaporator.

In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a multi-door refrigerator refrigerating system, includes compressor, muffler, condenser, dew removing pipe, drier-filter, capillary, evaporimeter, muffler and the connecting pipe that connects gradually, its characterized in that: the condenser include end condenser, back condenser and U shell condenser, connect gradually between the muffler and remove the dew pipe, constitute and press compressor, muffler, end condenser, back condenser, U shell condenser, remove dew pipe, drier-filter, capillary, evaporimeter, muffler, connecting pipe and the closed route of circulation that the compressor order was connected and is formed, wherein, end condenser level set firmly in refrigerator bottom compressor cabin, the back condenser locate on the refrigerator back steel sheet, U shell condenser locate U shell board department of bending.

The bottom condenser is horizontally and fixedly arranged on the upper surface or the lower surface of the bottom plate of the refrigerator, and a plurality of vent holes or grid shapes are arranged on the bottom plate; the bottom condenser is arranged at the adjacent side of the compressor, and a partition plate can be arranged between the bottom condenser and the compressor to ensure that the bottom condenser and the compressor are positioned in two different chambers in a compressor cabin; or the partition plate is not installed, so that the partition plate and the compressor are in the same compressor chamber.

The bottom condenser pipe is provided with radiating fins to enlarge the radiating area.

The bottom condenser is a coiled pipe condenser or a coiled pipe condenser, and the coiled pipe condenser can be a circular coil condenser or a rectangular coil condenser.

The back condenser is attached to the edge of a back steel plate of the refrigerator by surrounding the VIP plate in a square design, the inlet and the outlet of the back condenser are arranged at the bottom, the inlet of the back condenser is connected with the outlet of the bottom condenser, and the outlet of the back condenser is connected with the inlet of the U-shaped shell condenser.

The U-shell condenser adopts a single-pipe integrated design and is tightly attached to the side, close to the back steel plate, of the bent part of the U-shell plate.

The dew removing pipe is an n-shaped frame along the left side frame, the right side frame and the top frame of the refrigerator, and is bent into a double round pipe at one side of the n-shaped frame corresponding to the position of the middle partition plate; and a reciprocating double pipe is bent at the other side of the n-shaped frame corresponding to the positions of the upper clapboard and the lower clapboard. The dew-removing pipe is a hard copper pipe or a semi-hard copper pipe.

The position of the vertical clapboard of the reciprocating double-pipe on the middle clapboard is bent into the reciprocating double-pipe along the vertical clapboard.

The evaporator is located in the freezer compartment, typically at the rear of the freezer compartment.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.

The invention relates to a multi-door refrigerator refrigerating system, which comprises a compressor, a silencer, a condenser, a dew removing pipe, a drying filter, a capillary tube, an evaporator, an air return pipe and a connecting pipe which are connected in sequence, and is characterized in that the condenser comprises a bottom condenser, a back condenser and a U-shaped shell condenser which are connected between the silencer and the dew removing pipe in sequence to form a circulating closed passage formed by connecting the compressor, the silencer, the bottom condenser, the back condenser, the U-shaped shell condenser, the dew removing pipe, the drying filter, the capillary tube, the evaporator, the air return pipe, the connecting pipe and the compressor,

the bottom condenser is horizontally and fixedly arranged in a compressor cabin at the bottom of the refrigerator, and a computer board is arranged in a space saved by the compressor cabin through reasonable design, so that the phenomena of thinning and condensation of a foaming layer caused by the fact that other refrigerators mount the computer board on the back are avoided; the condenser pipe is provided with the radiating fins, so that the radiating area is greatly increased, the refrigerator can reach the required condensing temperature by using a shorter condenser, and the cost is reduced;

the back condenser is attached to the edge of a back steel plate of the refrigerator in a square mode, the U-shell condenser is integrally attached to the bent part of the U-shell plate close to the back steel plate side through a single-pipe, so that the length of the total condensation pipeline is guaranteed, and the attachment of VIP is not influenced;

the dew removing pipe firstly passes through the partition plate part in the ice making, temperature changing and freezing chamber, then the pipeline bypasses a top plate door frame and then respectively passes through the upper partition plate and the lower partition plate, so that the dew removing effect of the freezing part can be ensured, the integral stability of the pipeline can be well kept, the pipeline deformation caused in the dew removing pipe mounting process by workers is avoided, the dew removing effect is influenced, and the social feedback is avoided; meanwhile, the dew removing pipe is made of a semi-hard copper pipe, and plays a key role in keeping the shape of the product.

In addition, the invention only uses one evaporator, the single system realizes the requirement of a multi-temperature area, the reasonable system design reduces the noise, reduces the number of welding spots to the maximum extent and reduces the feedback rate of welding leakage.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a front view of the refrigeration system of the multi-door refrigerator of the present invention;

FIG. 2 is a side view of the refrigeration system of the multi-door refrigerator of the present invention;

FIG. 3 is a view from A-A of FIG. 1;

FIG. 4 is a front view of the back condenser of the present invention;

FIG. 5 is a front view of a U-shell condenser of the present invention;

FIG. 6 is a front view of the dew removing tube of the present invention;

FIG. 7 is a schematic perspective view of a multi-door refrigerator according to an embodiment of the present invention;

description of reference numerals:

1 compressor, 2 silencers, 3 dew removing pipes, 4 drying filters, 5 capillary tubes/air return pipes, 6 evaporators, 7 connecting pipes, 8 bottom condensers, 9 back condensers, 10U shell condensers, 11 back steel plates, 12U shell plates, 13 VIP plates, 14 bending parts, 15 top frames, 16 upper partition plates, 17 lower partition plates, 18 vertical partition plates, 19 middle partition plates, 20 left side frames, 21 right side frames, 30 pi-shaped frames, 31, 32, 33 and 34 reciprocating double pipes

Detailed Description

As shown in fig. 1 and 2, the multi-door refrigerator refrigeration system according to the present invention includes a compressor 1, a muffler 2, a condenser, a dew-removing pipe 3, a dry filter 4, a capillary tube 5, an evaporator 6, an air-returning pipe 5, and a connecting pipe 7, which are sequentially connected, wherein the condenser includes a bottom condenser 8, a back condenser 9, and a U-shell condenser 10, which are sequentially connected between the muffler 2 and the dew-removing pipe 3, thereby forming a circulating closed path formed by sequentially connecting the compressor 1, the muffler 2, the bottom condenser 8, the back condenser 9, the U-shell condenser 10, the dew-removing pipe 3, the dry filter 4, the capillary tube 5, the evaporator 6, the air-returning pipe 5, the connecting pipe 7, and the compressor 1. Wherein,

the bottom condenser 8 is horizontally and fixedly arranged in a compressor chamber at the bottom of the refrigerator, and the upper surface or the lower surface of a bottom plate of the refrigerator (refer to fig. 3); the bottom condenser 8 is arranged at the adjacent side of the compressor 1, and a partition plate can be arranged between the bottom condenser and the compressor 1, so that the bottom condenser and the compressor are positioned in two different chambers in a compressor cabin; or the partition plate is not installed, so that the partition plate and the compressor are in the same compressor chamber. As shown in fig. 4, the back condenser 9 is arranged on a back steel plate 11 of the refrigerator, and is attached to the edge of the back steel plate 11 of the refrigerator by surrounding a VIP plate 13 in a square design; as shown in fig. 5, the U-shell condenser 10 is disposed at a bent portion 14 of the U-shell plate 12, and is designed to be closely attached to the bent portion 14 of the U-shell plate near the back steel plate 11 by a single-pipe integrated design.

The refrigerator bottom plate is provided with a plurality of vent holes or grids, a compressor cooling fan (not shown in the figure) is generally arranged on the compressor 1 arranged on the refrigerator bottom plate, and the compressor cooling fan can simultaneously achieve the effect of forced ventilation and heat dissipation on the bottom condenser 8; the condenser pipe of the bottom condenser 8 arranged on the bottom plate of the refrigerator is also provided with radiating fins to enlarge the radiating area, so that the refrigerator can reach the required condensing temperature by using a shorter condenser; the bottom condenser 8 is a serpentine tube condenser or a coiled tube condenser, and the coiled tube condenser can be a circular coil condenser or a rectangular coil condenser.

As shown in fig. 6 and 7, the multi-door refrigerator according to the present embodiment is a five-door refrigerator, and the dew removing pipe 3 is an n-shaped frame 30 along the left and

right side frames

20 and 21 and the top frame 15 of the refrigerator, and is bent into a double round pipe 31 at a position corresponding to the middle partition plate 19 at one side of the n-shaped frame 30; the other side of the n-shaped frame 30 is bent into

double round tubes

32 and 33 corresponding to the positions of the upper partition plate 16 and the lower partition plate 17; the round-trip double pipe 31 is bent into a round-trip double pipe 34 along the vertical clapboard 18 at the position of the vertical clapboard 18 on the middle clapboard 19.

In the illustrated embodiment, the dew removing tube 3 is bent from the rear side of the refrigerator along a side plate to the bottom of a side frame vertically and upwardly to a middle partition plate 19, bent along the middle partition plate 19 to a horizontal to vertical partition plate 18, bent along the vertical partition plate 18 upwardly to an upper partition plate 16, then bent to the middle partition plate 19, then bent along the middle partition plate 19 to the other end of the middle partition plate, then bent back to the original side frame, bent along the original side frame upwardly and vertically to a refrigerator top frame 15, then bent along the refrigerator top frame 15 to the other side frame, bent along the other side frame downwardly to the upper partition plate 16, bent along the upper partition plate 16 to a horizontal to the other side frame, bent along the other side frame downwardly to a lower partition plate 17, bent along the lower partition plate 17 to a horizontal to the other side frame, bent along the other side frame downwardly to the bottom, and then bent rearwardly to the rear side of the other side plate. So set up and avoid removing dew pipe local overweight, because of dead weight deformation, or overlength and rigidity reduces, other multi-door refrigerators all can be according to above-mentioned embodiment rational layout dew removal pipe, guarantee its dew removal effect.

In order to improve rigidity and reduce deformation, the metal pipe is a hard copper pipe or a semi-hard copper pipe.

The evaporator 6 of the present invention is located in the freezer compartment near the back wall of the refrigerator.

The invention relates to a multi-door refrigerator refrigerating system, which comprises a compressor, a silencer, a condenser, a dew removing pipe, a drying filter, a capillary tube, an evaporator, an air return pipe and a connecting pipe which are sequentially connected, wherein the condenser comprises a bottom condenser, a back condenser and a U-shaped shell condenser, and the condenser is sequentially connected between the silencer and the dew removing pipe to form a single-circulation closed passage refrigerating system formed by connecting the compressor, the silencer, the bottom condenser, the back condenser, the U-shaped shell condenser, the dew removing pipe, the drying filter, the capillary tube, the evaporator, the air return pipe, the connecting pipe and the compressor. Wherein,

the bottom condenser is horizontally and fixedly arranged in a compressor cabin at the bottom of the refrigerator, and a computer board is arranged in a space saved by the compressor cabin through reasonable design, so that the phenomena of thinning and condensation of a foaming layer caused by the fact that other refrigerators mount the computer board on the back are avoided; the condenser pipe is provided with the radiating fins, so that the radiating area is greatly increased, the refrigerator can reach the required condensing temperature by using a shorter condenser, and the cost is further reduced;

the back condenser is attached to the edge of a back steel plate of the refrigerator in a square shape, and the U-shell condenser is integrally attached to the bent part of the U-shell plate close to the back steel plate side by adopting a single-pipe way, so that the length of the total condensation pipeline is ensured, the refrigeration effect of the total condensation pipeline is not influenced, the attachment of VIP is not influenced, and the heat preservation effect of the condensation pipeline is ensured;

In addition, the invention only uses one evaporator, the single system meets the requirement of a multi-temperature area, the reasonable system design reduces the noise, and particularly, a silencer is arranged between the compressor and the dew removing pipe, so that the noise is effectively reduced.

Claims

1. The utility model provides a multi-door refrigerator refrigerating system, includes compressor, muffler, condenser, dew removing pipe, drier-filter, capillary, evaporimeter, muffler and the connecting pipe that connects gradually, its characterized in that: the condenser include end condenser, back condenser and U shell condenser, connect gradually between the muffler and remove the dew pipe, constitute and press compressor, muffler, end condenser, back condenser, U shell condenser, remove dew pipe, drying filter, capillary, evaporimeter, muffler, connecting pipe and the closed route of circulation that the compressor order was connected and is formed, end condenser level set firmly in refrigerator bottom compressor under-deck, the back condenser locate on refrigerator back steel sheet, U shell condenser locate U shell board department of bending, end condenser level set firmly in the upper or lower surface of refrigerator bottom plate.

2. The refrigeration system of claim 1, wherein: and the bottom condenser pipe is provided with a radiating fin.

3. The refrigeration system of claim 2, wherein: the bottom condenser is a coiled pipe condenser or a coiled pipe condenser.

4. The refrigeration system of claim 1, wherein: the back condenser is attached to the edge of the back steel plate of the refrigerator by surrounding the VIP plate in a square design.

5. The refrigeration system of claim 1, wherein: the U-shell condenser is designed to be tightly attached to the bent part of the U-shell plate close to the back steel plate side in an integrated mode through a single pipeline.

6. The refrigeration system of claim 1, wherein: the dew-removing pipe is an n-shaped frame along the left and right side frames and the top frame of the refrigerator, and is bent into a reciprocating double pipe at one side of the n-shaped frame corresponding to the position of the middle partition plate; the other side of the n-shaped frame is bent into a double-round pipe corresponding to the positions of the upper partition plate and the lower partition plate.

7. The refrigeration system of claim 6, wherein: the position of the vertical clapboard of the reciprocating double-pipe on the middle clapboard is bent into the reciprocating double-pipe along the vertical clapboard.

8. The refrigeration system of claim 1, wherein: the evaporator is arranged in the freezing chamber.