CN112303979A - Refrigerator and compressor bin heat radiation structure thereof - Google Patents
Refrigerator and compressor bin heat radiation structure thereof Download PDFInfo
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- CN112303979A CN112303979A CN201910703784.7A CN201910703784A CN112303979A CN 112303979 A CN112303979 A CN 112303979A CN 201910703784 A CN201910703784 A CN 201910703784A CN 112303979 A CN112303979 A CN 112303979A
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- 230000005855 radiation Effects 0.000 title abstract description 17
- 230000017525 heat dissipation Effects 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 4
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- 238000005452 bending Methods 0.000 description 1
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- 239000006185 dispersion Substances 0.000 description 1
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- 230000003628 erosive effect Effects 0.000 description 1
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- 238000005187 foaming Methods 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
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- 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
- F25B31/00—Compressor arrangements
- F25B31/006—Cooling of compressor or motor
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- 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
- F25D19/003—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors with respect to movable containers
Abstract
The invention discloses a compressor bin heat radiation structure, which comprises: a condenser, a compressor, a centrifugal fan; the centrifugal fan is arranged at a position closer to the air outlet side of the compressor bin than the condenser and the compressor, and an air outlet of the centrifugal fan is provided with a flow guide sheet with the flow guide direction upward. By adopting the compressor bin heat dissipation structure provided by the invention, the air outlet of the centrifugal fan can be far away from the air inlet side of the compressor bin as far as possible, and the air outlet of the centrifugal fan is prevented from being sucked back into the compressor bin; and moreover, the flow guide design of the air outlet of the centrifugal fan is adopted, so that the air outlet trend of the centrifugal fan is intervened, the phenomenon of back suction of the compressor bin is further prevented, and the generation of short-circuit airflow is effectively prevented, so that the exchange quantity of the air flow in the compressor bin and the external airflow is ensured, and the heat radiation performance of the compressor bin is ensured. In addition, the invention also discloses a refrigerator adopting the compressor bin heat dissipation structure.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to a refrigerator and a compressor bin heat dissipation structure thereof.
Background
A refrigerator is a commonly used household appliance for refrigeration. The condenser is a main radiating component of the refrigerator, and the air-cooled refrigerator is divided into two types, namely an embedded condenser and an external condenser, according to the placement position of the condenser. The former is to embed the condenser in the foaming material on the side of the refrigerator, and rely on heat conduction and natural convection on the side to dissipate heat; the condenser is arranged in the compressor bin, and the surface of the condenser is continuously blown by airflow formed by a fan in the compressor bin to conduct heat conduction and forced convection heat dissipation.
The fan of the existing embedded refrigerator compressor bin is an axial flow fan and is positioned between a compressor and a condenser. The sponge strips are attached to the periphery of the axial flow fan, and unidirectional flowing air flow can be formed in the compressor bin during operation. The air flow enters from the air inlet grille and passes through the condenser, enters the compressor side through the fan and then is discharged through the outlet grille, and therefore the purpose of reducing the temperature of the condenser is achieved.
Because the distance between the periphery of the embedded refrigerator and the cabinet is smaller, the exhaust resistance of the compressor bin is increased, the airflow at the outlet of the compressor bin is directly sucked into the compressor bin again through the air inlet, and the effective airflow exchange quantity between the compressor bin and the outside is greatly reduced. The opening air flow guide of the air inlet and the air outlet on the rear cover plate of the existing embedded refrigerator is almost in the left-right horizontal direction, horizontal air inlet and horizontal air outlet are formed, the air flow of the air outlet is easily sucked into the air inlet again, short-circuit air flow formed by the air flow of the compressor bin on the back of the refrigerator is further aggravated, the heat of a condenser cannot be discharged outdoors, and finally the heat dissipation performance of the refrigerator is reduced.
Disclosure of Invention
In view of this, the present invention provides a heat dissipation structure for a compressor compartment, which can avoid the phenomenon of air back suction, effectively prevent short-circuit air flow, ensure the exchange amount between the air flow in the compressor compartment and the external air flow, and ensure the heat dissipation performance of the compressor compartment.
In order to achieve the purpose, the invention provides the following technical scheme:
a compressor sump heat dissipation structure, comprising: a condenser, a compressor and a centrifugal fan;
the centrifugal fan sets up than the condenser with the compressor is closer to the position of the air-out side in compressor storehouse, centrifugal fan's air outlet is provided with water conservancy diversion direction water conservancy diversion piece up.
Preferably, centrifugal fan sets up the air-out side in compressor storehouse, the condenser sets up the air inlet side in compressor storehouse, the compressor is located centrifugal fan with between the condenser.
Preferably, the centrifugal fan is an outer rotor single-face centrifugal fan.
Preferably, the guide vane is an arc-shaped structure which is bent backwards towards the lower part.
Preferably, the method further comprises the following steps: the rear cover plate of the compressor is provided with a first air inlet grille, and the opening direction of the first air inlet grille faces downwards.
Preferably, the openings of the first air inlet grille are deflected in a direction away from the air outlet side of the compressor compartment.
Preferably, the number of the first air inlet grilles is multiple, and the multiple first air inlet grilles are arranged in a staggered manner in multiple rows or multiple columns.
Preferably, the method further comprises the following steps: and the compressor bottom plate is provided with an air hole for introducing air flow at the part of the compressor bottom plate, which is positioned on the condenser.
A refrigerator, comprising: compressor bin heat radiation structure, compressor bin heat radiation structure is as above-mentioned compressor bin heat radiation structure.
Preferably, a side plate of the refrigerator, which is close to the air inlet side of the compressor bin, is provided with a second air inlet grid communicated with the compressor bin.
According to the technical scheme, the centrifugal fan is arranged in a manner of deviating from the air outlet side of the compressor bin, so that the air outlet of the centrifugal fan is far away from the air inlet side of the compressor bin as far as possible, the air outlet of the centrifugal fan is prevented from being sucked back into the compressor bin, the air outlet trend of the centrifugal fan is interfered by the flow guide design of the air outlet of the centrifugal fan, the suck-back phenomenon of the compressor bin is further prevented, the generation of short-circuit airflow is effectively prevented, the exchange quantity of the air flow in the compressor bin and the external air flow is ensured, and the heat radiation performance of the compressor bin is ensured.
The invention also provides a refrigerator, which has corresponding beneficial effects due to the adoption of the compressor bin heat dissipation structure, and specific reference can be made to the foregoing description, so that the details are not repeated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic layout diagram of a compressor compartment heat dissipation structure according to an embodiment of the present invention;
FIG. 2a is a schematic structural diagram of an air inlet/outlet and a side air inlet of a rear cover of a compressor according to an embodiment of the present invention;
FIG. 2b is a schematic structural diagram of a side rear gas flow mode of a refrigerator according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a rear cover plate of a compressor according to an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of the area C in FIG. 3;
FIG. 5 is a cross-sectional view (compressor bin inlet guide vane configuration) taken along section A-A of FIG. 3;
fig. 6 is a cross-sectional view (centrifugal fan and air outlet guide vane) taken along the section B-B in fig. 3;
FIG. 7 is a schematic view of a bottom-in and top-out airflow design provided by an embodiment of the present invention;
FIG. 8 is a schematic view of a compressor base plate and a base plate inlet according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a compressor bin layout according to an embodiment of the present invention;
FIG. 10a is a schematic view of an assembled centrifugal fan according to an embodiment of the present invention;
FIG. 10b is a schematic structural diagram of a fixing manner of a centrifugal fan according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of an outer rotor single-sided centrifuge provided in an embodiment of the present invention;
FIG. 12 is a back temperature field of a conventional axial flow fan embedded refrigerator;
fig. 13 is a back temperature field of the heat dissipation structure embedded refrigerator according to the embodiment of the present invention.
The condenser comprises a condenser 1, a compressor 2, a centrifugal fan 3, a flow deflector 31, a bolt hole 32, a flange 33, a compressor base plate 4, an air hole 41, a compressor rear cover plate 5, a first air inlet grid 51, a first air inlet grid 511, a second air inlet grid 52, an air outlet 53 and an air flow 531, wherein the air inlet is arranged at the position of the first air inlet grid.
Detailed Description
The heat dissipation structure provided by the embodiment of the invention is a novel heat dissipation structure which is provided aiming at the defects of the layout of the existing compressor bin. The structure can effectively improve the exchange efficiency of airflow and external airflow of the embedded refrigerator compressor bin, effectively discharges the heat of the condenser to the outside, and ensures the heat dissipation performance of the refrigerator.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The compressor bin heat radiation structure provided by the embodiment of the invention comprises: a condenser 1, a compressor 2 and a centrifugal fan 3, the structure of which can be seen in fig. 1 and 9;
the centrifugal fan 3 is disposed at a position closer to the air outlet side of the compressor compartment than the condenser 1 and the compressor 2, and an air outlet of the centrifugal fan 3 is provided with a baffle 31 having an upward flow guiding direction, as shown in fig. 11.
According to the technical scheme, in the compressor bin heat dissipation structure provided by the invention, the centrifugal fan is arranged in a manner of deviating from the air outlet side of the compressor bin, so that the air outlet of the centrifugal fan is far away from the air inlet side of the compressor bin as far as possible, and the air outlet of the centrifugal fan is prevented from being sucked back into the compressor bin; and moreover, the flow guide design of the air outlet of the centrifugal fan is adopted, so that the air outlet trend of the centrifugal fan is intervened, the phenomenon of back suction of the compressor bin is further prevented, and the generation of short-circuit airflow is effectively prevented, so that the exchange quantity of the air flow in the compressor bin and the external airflow is ensured, and the heat radiation performance of the compressor bin is ensured.
Specifically, the centrifugal fan 3 is arranged on the air outlet side of the compressor bin, and the condenser 1 is arranged on the air inlet side of the compressor bin, so that the air outlet of the centrifugal fan 3 is far away from the air inlet of the compressor bin, the suck-back resistance of the air outlet of the centrifugal fan 3 is increased, short-circuit airflow is prevented from being generated, the exchange quantity between the inside of the compressor bin and outside airflow is prevented from being influenced, and the heat dissipation performance in the compressor bin is ensured; accordingly, the compressor 2 is located between the centrifugal fan 3 and the condenser 1, and compared with the design of the compressor 2 and the condenser 1 in the prior art, the installation distance between the compressor 2 and the condenser 1 can be shortened, which is beneficial to saving the length of the pipeline between the compressor 2 and the condenser 1, and the layout of the above components can be seen in fig. 1 and 9.
In this scheme, centrifugal fan 3 is external rotor single face centrifugal fan, and it has higher pressure head compared in the axial fan among the prior art, can increase the air intake capacity and the exhaust capacity in compressor storehouse, has increased the exchange efficiency with external air current in the compressor storehouse, helps promoting the heat dispersion in compressor storehouse. In particular, the outer rotor single-sided centrifugal fan is particularly suitable for refrigerators with large air exhaust resistance, for example, embedded refrigerators with increased air exhaust resistance caused by small gap with the wall surface of a cabinet.
In order to further optimize the above technical solution, the baffle 31 is an arc structure bending backwards and downwards, and the structure thereof can be shown with reference to fig. 11. And, the terminal tangent of this arc structure is up to the air-out of guide centrifugal fan 3 upwards discharges. Wherein, the above-mentioned "lower" direction is the direction towards the bottom plate of the refrigerator; in addition, the direction of "rear" is the direction toward the rear side plate of the refrigerator. The guide vane 31 adopts an arc structure, so that smooth drainage of the air outlet fluid is realized, the energy loss of the air outlet fluid is reduced, and the erosion of the guide vane 31 is avoided.
In this scheme, compressor storehouse heat radiation structure still includes: the compressor rear cover plate 5 is provided with a first air inlet grille 51, and the opening direction of the first air inlet grille 51 faces downwards. The first air inlet grille 51 is matched with the flow deflector 31 of the centrifugal fan 3 in a flow guiding manner, so that a circulating air flow of 'bottom inlet and top outlet' is formed outside the compressor bin, and the exchange amount of the air flow inside the compressor bin and the outside air flow is increased, and the structure of the circulating air flow can be referred to fig. 3 to 5. Specifically, the low-temperature external air flow is firstly deposited at the bottom of the refrigerator, then enters the compressor bin from bottom to top through the opening of the first air inlet grille 51 of the compressor rear cover plate 5, the low-temperature air flow is converted into high-temperature air flow after being subjected to heat exchange with the condenser 1, the high-temperature air flow is discharged to the back gap of the refrigerator through the guiding action of the flow deflector 31 of the centrifugal fan 3, and the high-temperature air flow naturally rises based on the property of the high-temperature air flow and then flows to the top of the refrigerator from the back gap of the refrigerator, so that an air inlet and outlet mode that 'cold air enters from the bottom and hot air is discharged from the top' is. In addition, the opening direction of the first air inlet grille 51 and the flow guide direction of the centrifugal fan 3 are designed in a back direction, so that the phenomenon of back suction can be avoided to a great extent, short circuit of air flow is prevented from being caused gradually, the exchange capacity between the air flow in the compressor bin and the air flow outside is greatly ensured, and the heat dissipation performance of the compressor bin is further ensured.
Specifically, the openings of the first air intake grille 51 are deflected in a direction away from the air outlet side of the compressor compartment, the structure of which can be seen in fig. 3 and 4. The first air inlet grille 51 is rotated by a small angle anticlockwise, so that the opening of the first air inlet grille 51 faces downwards in an inclined mode, the distance between the air outlet of the centrifugal fan 3 and the air inlet side of the compressor bin is increased, the difficulty of back suction of the air outlet of the centrifugal fan 3 is increased, short-circuit airflow can be effectively reduced, and the smoothness of an air exchange path of the compressor bin is guaranteed.
In order to further optimize the above technical solution, the number of the first air intake grilles 51 is multiple, and the multiple first air intake grilles 51 are staggered in multiple rows or multiple columns, and the structure thereof can be seen in fig. 3 and 4. The arrangement of the first air inlet grille 51 is helpful to increase the air input of the compressor bin, so as to increase the exchange efficiency between the inside of the compressor bin and the outside air flow, thereby improving the heat dissipation efficiency of the compressor bin. Meanwhile, the first grilles 51 are disposed at the air inlet of the compressor compartment in a staggered manner, so that the structural connection strength of the air inlet of the compressor compartment can be improved.
In this scheme, still include: the compressor base plate 4, the compressor base plate 4 is offered the air pocket 41 that is used for letting in the air current to the part that is located condenser 1, has not only increaseed the air input in compressor storehouse, has responded to the business turn over wind mode of "cold air gets into from the bottom, and hot-air is discharged from the top" moreover, finally forms compressor storehouse bottom unilateral and admits air, has guaranteed "the unobstructed of air current that advances down", and its structure can refer to fig. 8 and 9 and show.
An embodiment of the present invention further provides a refrigerator, including: compressor storehouse heat radiation structure, compressor storehouse heat radiation structure be as above-mentioned compressor storehouse heat radiation structure. Due to the adoption of the compressor bin heat dissipation structure, the compressor bin heat dissipation structure has corresponding beneficial effects, and specific reference can be made to the foregoing description, and details are not repeated herein.
In order to further optimize the above technical solution, a second air inlet grille 52 communicated with the compressor compartment is opened on a side plate of the refrigerator near the air inlet side of the compressor compartment, and the structure thereof can be shown with reference to fig. 2a and 2 b. The second air inlet grille 52 designed in this orientation follows the inlet flow direction of the circulating air flow from top to bottom, greatly increasing the inlet air quantity of the compressor bin. Further, the above mentioned openings of the first air intake grille 51 are deflected in the direction of the second air intake grille 52, so that the first air intake grille 51 can receive the residual circulating air flow, achieving sufficient air intake of the compressor compartment.
The present solution is further described below with reference to specific embodiments:
a compressor sump heat dissipation structure, the structure comprising: a condenser 1, a compressor 2, a centrifugal fan 3, a compressor bottom plate 4 and a compressor rear cover plate 5 which are positioned at the compressor compartment, and a first air intake grill 51 and a second air intake grill 52 which are positioned at the compressor rear cover plate 5 and a side plate of the refrigerator.
The compressor bin of the traditional refrigerator consists of a condenser, a compressor, an axial flow fan, a water pan, a pipeline and other components. The novel embedded refrigerator compressor bin is composed of a condenser 1, a compressor 2, a centrifugal fan 3, a water receiving disc and a pipeline. Wherein condenser 1, the water collector position compares unchangeably with the tradition. The compressor 2 moves to the middle position from one side far away from the condenser 1, the centrifugal fan 3 is positioned at one side far away from the condenser 1, and the centrifugal fan 3 adopts an outer rotor single-face centrifugal fan. The air duct outlet is connected with the rear cover of the compressor bin, and the air duct outlet is provided with guide vanes to enable air to flow upwards. One side of the compressor bin, which is close to the condenser 1, is provided with air inlets which are arranged in a staggered manner. The compressor rear cover 5 is provided with air inlets close to the condenser 1, the air inlets are staggered and rotate to one side with side air inlets for a certain angle, so that the gas exhausted by the centrifugal fan is prevented from being sucked, and an air flow short circuit is formed.
1. The internal layout of the compressor bin: the compressor 2 is located in the middle of the compressor bin, and the condenser 1 and the centrifugal fan 3 are distributed on two sides of the compressor 2, as shown in fig. 10. The compressor 2 is fixed on the compressor base plate 4 through screws, a flange 33 is arranged at an air outlet of the outer rotor centrifugal fan, and the flange is arranged on the inner side of the compressor rear cover 5 through a bolt hole 32, as shown in fig. 10 and 11.
2. The air outlet of the centrifugal fan 3 is provided with a flow deflector 31 for guiding flow upwards, and the flow deflector 31 is in an arc shape and is fixed at the air outlet of the centrifugal fan 3 in a welding mode.
3. The first air intake grill 51 of the compressor rear cover 5 is formed by punching in the shape described in the technical scheme of the present invention.
4. The manufacture method of the air inlet on the side surface of the refrigerator is the same as that of the rear cover grating.
The working principle of the invention is as follows:
the compressor bin heat dissipation structure provided by the embodiment of the invention is particularly suitable for an embedded refrigerator, and the main details are as follows: the embedded refrigerator has small peripheral gaps, the resistance of gas exchange with the outside is increased, and the centrifugal fan 3 with a large pressure head can improve the efficiency of gas exchange with the outside. The air inlet holes are arranged in a staggered mode, and air inlet efficiency is improved. The air inlet of the compressor rear cover 5 is designed in a downward air inlet flow guide mode, and rotates to one side with the side air inlet by a certain angle, so that gas exhausted by the centrifugal fan 3 is prevented from being sucked, and the short circuit of air flow is avoided. The air duct outlet of the centrifugal fan 3 is connected with the rear cover of the compressor bin, and the air duct outlet is provided with guide vanes to enable air to flow upwards. Finally, cold air flow enters the compressor bin from the bottom, and hot air flow is discharged from the top, namely, the air flow design of 'bottom-in-top-out'. The design mode of the airflow air channel does not need other auxiliary accessories on one hand, and conforms to the principle of hot airflow rising on the other hand, so that the heat dissipation efficiency is improved.
An embedded refrigerator model and a traditional non-embedded refrigerator model with novel structures are respectively established, and the effective exchange capacity of the compressor bin and the external air flow, the air flow exchange capacity of the compressor bin and the temperature field distribution are contrastively analyzed under the condition of the same rotating speed. The advantages and disadvantages of the air channel structure of the existing compressor bin and the air channel structure of the centrifugal fan 3 are evaluated under the embedded condition through the air flow efficiency (effective air flow exchange amount/compressor bin air flow exchange amount). Through simulation result comparison, the effective airflow efficiency of the centrifugal fan structure is improved by 17%. The cloud of the back temperature field shows that the centrifugal fan is more beneficial to heat dissipation of the embedded refrigerator, as shown in fig. 12 and 13. The embedded refrigerator compressor bin uses a centrifugal fan, and outlet airflow flows upwards along a back gap, so that airflow short circuit does not exist, and the heat dissipation of the compressor bin is facilitated.
The novel structure provided by the invention is different from the traditional structure, and has the following points:
1. the traditional structure adopts an axial flow fan or a cross flow fan to work and drive the airflow circulation of the compressor bin, and the novel structure adopts an outer rotor single-sided centrifugal fan to work and drive the compressor bin. Compared with the existing axial flow fan, the centrifugal fan 3 has higher pressure head and is more suitable for being applied to the embedded refrigerator with larger system resistance.
2. Compared with the traditional structure, the novel structure has different layout of the compressor bin. The traditional structure adopts an axial flow fan in the middle, and a condenser 1 and a compressor 2 are distributed at two ends of a compressor bin. The novel structure is that the compressor 2 is in the middle, and the condenser 1 and the centrifugal fan 3 are positioned at two ends of the compressor bin. This arrangement enables the outlet of the centrifugal fan 3 to be away from the first air inlet grille 51 of the compressor rear cover 5 and the second air inlet grille 52 on the side plate of the refrigerator, thereby preventing the airflow 531 at the outlet of the centrifugal fan 3 from being sucked into the compressor compartment through the first air inlet grille 51 to form an airflow short circuit.
3. Through the air inlet grille design different from the traditional structure, the air duct of the centrifugal fan 3 adopts a flow guide design and a hole design of the compressor bottom plate 4 to form a circulating air flow of 'bottom inlet and top outlet', as shown in figure 7. That is, the low temperature outside air enters the compressor compartment through the first air inlet grill 51 of the compressor rear cover 5, the second air inlet grill 52 of the refrigerator side plate and the opening 41 of the compressor bottom plate 4, and after heat exchange with the condenser 1, the high temperature air is discharged to the gap at the back of the refrigerator through the centrifugal fan 3 and discharged to the outside space through the top. The airflow design conforms to the high-temperature airflow rising principle, and relatively small air volume can be used for meeting the requirement of heat dissipation.
Wherein, the first air intake grille 51 of the compressor rear cover 5 is designed: the first air inlet grille 51 is opened downwards, and two adjacent rows (rows) are arranged in a staggered mode, so that the efficiency of the air inlet 511 is improved conveniently. The air inlet rotates 15-20 degrees anticlockwise integrally, the direction of air inlet flow is far away from the outlet of the centrifugal fan 3, and the phenomenon that the air outlet flow of the centrifugal fan 3 is sucked into the compressor bin again is avoided.
The outlet of the centrifugal fan 3 is provided with a flow deflector 31, and the flow guiding direction of the flow deflector 31 is upward, so that the outlet air is discharged 531 upward.
The compressor bottom plate 4 is only provided with a hole at one side of the condenser 1, the air inlet area of the compressor bin is increased, the holes are not formed at other positions, and finally, bottom unidirectional air inlet is formed, so that smoothness of downward air inlet airflow is ensured.
Compared with the prior art, the novel compressor bin heat dissipation structure provided by the invention has the advantages that:
1. the gap between the periphery of the refrigerator and the cabinet becomes smaller, and the exchange resistance with the outside air increases. The novel heat radiation structure adopts the centrifugal fan 3, can make full use of the characteristic that the pressure head of the centrifugal fan 3 is large, and improves the airflow exchange efficiency of the compressor bin. Most of the existing refrigerators adopt an axial flow fan, which is arranged in a flow channel with large resistance and has lower efficiency than a centrifugal fan 3.
2. As described in the technical scheme part of the invention, the circulating airflow with the bottom inlet and the top outlet can be formed by the special layout of the compressor bin and the special flow guide design of the air inlet and the air outlet. This airflow is more consistent with the airflow flow than the existing "left in right out" designs due to the naturally rising nature of the hot air. On the other hand, due to the natural rising of hot air flow, compared with the traditional structure, the structure can meet the heat dissipation requirement of the compressor bin by using relatively small air volume.
3. The inlet and outlet directions of the traditional compressor rear cover are designed to be horizontal inlet and horizontal outlet. This airflow scheme can be satisfactory for non-embedded refrigerators, but cannot be satisfactory for embedded refrigerator heat dissipation. If the embedded refrigerator uses the above design, a significant short-circuit airflow is formed. And the design of air intake and deflection under the first air intake grille 51 of the novel compressor rear cover plate 5 and the design of upward diversion of the centrifugal air duct diversion piece 31 can effectively reduce the occurrence of short-circuit airflow.
4. The traditional compressor bin adopts an axial flow fan centered design, and a condenser and a compressor are positioned at two ends. The novel heat radiation structure is compressor 2 placed in the middle, and condenser 1 and centrifugal fan 3 are located both ends. On one hand, the novel layout can ensure that the air outlet is far away from the air inlet as far as possible, and short-circuit airflow is avoided; the novel overall arrangement of on the other hand makes compressor 2 and 1 interval of condenser reduce, is favorable to saving pipeline length.
The embodiment of the invention provides a novel compressor bin heat dissipation structure which can be applied to all types of embedded refrigerators, semi-embedded refrigerators, free embedded refrigerators and the like. The heat dissipation structure can effectively improve the heat dissipation of the compressor bin of the embedded refrigerator and improve the heat dissipation efficiency of the embedded refrigerator.
According to the heat dissipation structure provided by the embodiment of the invention, under the condition that no additional accessories are added, a bottom-in and top-out compressor bin airflow circulation scheme is formed through air duct optimization and airflow design, namely, low-temperature airflow enters the compressor bin from the bottom of the refrigerator, and high-temperature airflow is discharged from the top of the refrigerator through a back gap after being discharged from the compressor bin. In this way, the heat dissipation of the embedded refrigerator in a closed state can be realized. The compressor bin can realize a heat dissipation mode of downward entering and upward exiting under the improvement of not increasing additional parts. The embedded refrigerator compressor bin can be well cooled.
The innovation point of the technical scheme of the invention is as follows:
1. on the premise of not changing the layout of the compressor bin, the positions of the compressor 2 and the fan are only exchanged, and the existing axial flow fan of the compressor bin is changed into the design of an outer rotor single-face air inlet centrifugal fan, so that the larger resistance can be overcome, and the embedded refrigerator is more suitable for the embedded refrigerator with larger exhaust resistance.
2. The fan sets up in the one side of keeping away from the air inlet, greatly reduced refrigerator back air current short circuit.
3. The design of the air inlet opening which is inclined downwards and the design of the guide vane 31 of the centrifugal fan 3 with the air channel outlet which is bent upwards ensure that cold air is sucked from the bottom of the air suction opening of the compressor bin and hot air is discharged upwards from the air outlet. And the air flow in and out does not interfere with each other, thus avoiding the short circuit of the air flow.
The technical scheme of the invention comprises the following points:
1. the compressor bin uses an outer rotor single-side air inlet centrifugal fan.
2. Centrifugal fan 3, compressor 2 and 1 three's of condenser position in proper order: centrifugal fan 3, condenser 1 is located the both sides, and compressor 2 is located the centre.
3. The compressor rear cover 5 is inclined and is provided with a guide vane with a downward opening.
4. The air inlet and outlet modes of 'cold air entering from the bottom and hot air discharging from the top' are formed by upward diversion of an air duct outlet of the centrifugal fan and downward diversion of an air inlet opening.
In summary, the invention discloses a novel embedded refrigerator compressor bin heat dissipation structure, mainly aims at improving the heat dissipation difficulty of an embedded refrigerator, and relates to a novel heat dissipation structure. Different from the traditional axial flow fan and the air inlet and outlet mode, the novel centrifugal fan and the air inlet and outlet mode are more suitable for the embedded refrigerator with larger resistance, the exchange between the airflow of the compressor bin of the embedded refrigerator and the outside can be improved, and the heat radiation performance of the embedded refrigerator is improved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A compressor compartment heat dissipation structure, comprising: the device comprises a condenser (1), a compressor (2) and a centrifugal fan (3);
centrifugal fan (3) set up compare condenser (1) with compressor (2) are closer to the position of the air-out side in compressor storehouse, the air outlet of centrifugal fan (3) is provided with water conservancy diversion direction water conservancy diversion piece (31) up.
2. The heat dissipation structure of the refrigerator according to claim 1, wherein the centrifugal fan (3) is disposed on an air outlet side of the compressor compartment, the condenser (1) is disposed on an air inlet side of the compressor compartment, and the compressor (2) is disposed between the centrifugal fan (3) and the condenser (1).
3. The refrigerator heat dissipation structure of claim 1, wherein the centrifugal fan (3) is an outer rotor single-sided centrifugal fan.
4. The heat dissipating structure of a refrigerator according to claim 1, wherein the guide vane (31) has an arc shape curved backward toward the lower side.
5. The heat dissipating structure of a refrigerator according to claim 1, further comprising: the rear cover plate (5) of the compressor is provided with a first air inlet grille (51), and the opening direction of the first air inlet grille (51) faces downwards.
6. The heat dissipating structure of a refrigerator according to claim 5, wherein the opening of the first air intake grill (51) is deflected in a direction away from the air outlet side of the compressor compartment.
7. The heat dissipating structure of a refrigerator according to claim 5, wherein the number of the first air inlet grill (51) is plural, and the plural first air inlet grills (51) are arranged in a staggered manner in plural rows or plural columns.
8. The heat dissipating structure of a refrigerator according to claim 1, further comprising: the compressor base plate (4), the compressor base plate (4) is provided with an air hole (41) for introducing air flow at the part of the condenser (1).
9. A refrigerator, comprising: compressor compartment heat dissipation structure, characterized in that it is a compressor compartment heat dissipation structure according to any one of claims 1 to 8.
10. The refrigerator of claim 9, wherein a side plate of the refrigerator near the air inlet side of the compressor compartment is provided with a second air inlet grille (52) communicated with the compressor compartment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910703784.7A CN112303979A (en) | 2019-07-31 | 2019-07-31 | Refrigerator and compressor bin heat radiation structure thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910703784.7A CN112303979A (en) | 2019-07-31 | 2019-07-31 | Refrigerator and compressor bin heat radiation structure thereof |
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| CN112303979A true CN112303979A (en) | 2021-02-02 |
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| CN201910703784.7A Pending CN112303979A (en) | 2019-07-31 | 2019-07-31 | Refrigerator and compressor bin heat radiation structure thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115420058A (en) * | 2022-09-09 | 2022-12-02 | 海信冰箱有限公司 | Refrigerator |
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Application publication date: 20210202 |