WO2023115939A1

WO2023115939A1 - Refrigerator and condenser assembly thereof

Info

Publication number: WO2023115939A1
Application number: PCT/CN2022/107835
Authority: WO
Inventors: 魏星; 李霄
Original assignee: 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2021-12-20
Filing date: 2022-07-26
Publication date: 2023-06-29
Also published as: CN116294306A

Abstract

Provided in the present invention is a condenser assembly. The condenser assembly comprises a back plate, a cover plate, a fan, an air blocking portion and a condenser, wherein the cover plate and the back plate are connected to form a hollow shell; the cover plate is provided with an air inlet and an air outlet; the fan is arranged in the shell; the air inlet faces the fan and is arranged in the cover plate; the air blocking portion abuts against the back plate and the cover plate to form an air duct; the end of the fan close to the air duct is configured to supply air to the air duct; the condenser comprises a flow inlet, a condensation pipe and a flow outlet; and the condensation pipe is at least partially arranged on a moving trajectory of air in the air duct.

Description

Refrigerator and its condenser assembly

technical field

The invention relates to the technical field of refrigerator manufacturing, in particular to a refrigerator and a condenser assembly thereof.

Background technique

As a part of the refrigeration system of the refrigerator, the condenser is a kind of heat exchanger, which can convert gas or vapor into liquid, and transfer the heat in the tube to the air near the tube in a very fast way. The working process of the condenser is an exothermic process, so the temperature of the condenser itself is usually relatively high. In order to improve the working efficiency of the condenser, the heat carried by it needs to be conducted away in time.

At present, the air-cooled condensers commonly used in refrigerators on the market mainly include: micro-channel condensers and surface condensers. Among them, the cost of the micro-channel condenser is high and is limited by the structure of the refrigerator itself. Some refrigerators only have a bottom cooling system, and the heat dissipation effect cannot meet the requirements. Therefore, an additional surface condenser is required. Surface condensers are further divided into exposed condensers and built-in condensers. The overall cost of the exposed condenser is lower than that of the microchannel condenser, but it is usually placed outside the refrigerator, and it is easy to accumulate dust, which affects the heat dissipation effect of the condenser. Moreover, due to the impact on the appearance, some users do not accept this A refrigerator equipped with an exposed condenser; the cost of the built-in condenser is relatively lower, but the condenser tube is pasted on the inner side of the U shell and the back panel through aluminum foil tape, which has low heat dissipation efficiency and large thermal resistance. Not conducive to heat dissipation. On the whole, both the micro-channel condenser and the surface condenser in the prior art have the problem of poor heat dissipation.

Contents of the invention

The object of the present invention is to provide a new refrigerator and its condenser assembly, which effectively solves the problem of poor heat dissipation in microchannel condensers and surface condensers in the prior art.

In order to achieve the purpose of the above invention, one embodiment of the present invention provides a condenser assembly, which includes:

Backplane;

a cover plate, the cover plate is connected with the back plate to form a housing with accommodating space, and the cover plate is provided with an air inlet hole and an air exhaust hole;

a fan, the fan is arranged between the backboard and the cover, the air inlet is arranged on the cover and faces the fan;

a windshield part, the windshield part abuts against the backboard and the cover plate respectively to form an air duct, and the fan is close to one end of the air duct and is configured to blow air to the air duct;

A condenser, the condenser includes an inlet, an outlet and a condensing pipe, the condensing pipe is at least partially arranged on the trajectory of the wind in the air duct.

As a further improvement of an embodiment of the present invention, wherein the cover plate includes a central plate parallel to the back plate and a plurality of folded edges facing the back plate, the multiple folded edges are connected to the back plate In connection with each other, the air inlet holes are arranged on the central plate, the air exhaust holes are arranged on the folded edges, and a plurality of the air exhaust holes are evenly arranged on each of the folded edges.

As a further improvement of an embodiment of the present invention, wherein the air inlet hole is configured to match the fan, and the fan can pass through the air inlet hole and be fixedly connected to the backplane.

As a further improvement of an embodiment of the present invention, wherein the condenser assembly further includes a cover net disposed on the fan, and a fixing portion of the cover net is fixedly connected to the central plate.

As a further improvement of an embodiment of the present invention, wherein, the windshield part abuts against the center plate and the cover plate respectively to form a spiral air duct, and the fan is arranged at one end close to the center of the spiral air duct and supply air to the air duct, and the condensation pipe is arranged in the spiral air duct surrounded by the windshield part.

As a further improvement of an embodiment of the present invention, wherein the windshield part includes a first connecting plate and a second connecting plate, and the first connecting plate and the second connecting plate abut against the back plate and the second connecting plate respectively. A spiral air duct is formed on the central plate, one end of the first connecting plate is arranged close to the fan, and the other end of the first connecting plate extends along the volute line to a position away from the fan and is connected to the fan. One end of the second connecting plate is connected, and the other end of the second connecting plate extends along a zigzag spiral to a position close to the folded edge on the central plate, the second connecting plate, the central plate and the The backboard forms a zigzag spiral air duct from inside to outside.

As a further improvement of an embodiment of the present invention, wherein, the inlet and the outlet are arranged at the end of the air duct away from the fan, and the condensation pipe includes a side along the air duct away from the fan The inflow pipe and the outflow pipe near the side of the fan along the air passage, one end of the inflow pipe is connected with the inlet, and the other end of the inflow pipe extends along the air passage to the first A connecting plate is adjacent to the joint of the second connecting plate and is connected with one end of the outflow pipe, and the other end of the outflow pipe is connected with the outflow port.

As a further improvement of an embodiment of the present invention, wherein, the inflow pipe abuts against the windshield portion and the central plate, and the outflow pipe abuts against the central plate.

As a further improvement of an embodiment of the present invention, wherein the windshield part includes at least three windshield ribs surrounding the fan and arranged along the radial direction of the fan, the windshield ribs are respectively connected to the The back plate and the central plate abut against each other to form a plurality of air ducts, the fan is set to supply air to one end of the plurality of air ducts close to the fan, and the condensation pipe is fixedly connected to the windshield rib around the the center plate.

In order to achieve the purpose of the above invention, the present invention also provides a refrigerator, including a box body, and a door for opening and closing the box body, the box body includes an inner container and an outer shell, wherein the refrigerator also includes any of the above-mentioned In the condenser assembly described in the technical solution, the shell of the box forms the back plate.

Compared with prior art, the beneficial effect of the present invention is:

The invention solves the problem that the heat dissipation effect of the micro-channel condenser and the surface condenser in the prior art is not good.

Description of drawings

Fig. 1 is a schematic structural view of a condenser assembly in an embodiment of the present invention;

Fig. 2 is the right side view of condenser assembly in one embodiment of the present invention;

Fig. 3 is a schematic diagram of the cover plate structure of the condenser assembly in an embodiment of the present invention;

Fig. 4 is a structural schematic diagram of the windshield part of the condenser assembly in an embodiment of the present invention;

5 is a schematic structural diagram of a condenser of a condenser assembly in an embodiment of the present invention;

Fig. 6 is a schematic cross-sectional view of direction A in Fig. 1;

Fig. 7 is a schematic structural view of the condenser assembly in the second embodiment of the present invention.

Wherein, the above-mentioned accompanying drawings include the following reference signs:

1. Backplane;

2. Cover plate; 21. Center plate; 211. Air inlet hole; 22. Flange; 221. Air exhaust hole;

3, fan; 31, cover net;

4. Windshield part; 41. First connecting plate; 42. Second connecting plate; 43. Connection; 44. Damper bar;

51. Inflow inlet; 52. Outflow outlet; 53. Condensation pipe; 531. Inflow pipe; 532. Outflow pipe.

specific embodiment

The present invention will be described in detail below in conjunction with specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

If the present invention involves directions (for example, up, down, left, right, front, back, outside, inside, etc.) For the position and direction of description, refer to the operator of the equipment, the end close to the operator is the proximal end, and the end far away from the operator is the distal end." Or use the paper as a reference, the refrigerator depth direction as a reference, etc. to define. Of course, if the positional relationship between the two is defined by cross-referencing in subsequent descriptions, it may not be defined here.

In order to solve the problem of poor heat dissipation effect in microchannel condensers and surface condensers in the prior art, the present invention provides a refrigerator and a condenser assembly thereof.

As shown in Figures 1-6, an embodiment of the present invention provides a condenser assembly, including: a back plate 1, a cover plate 2, a fan 3, a windshield 4 and a condenser;

Wherein, the cover plate 2 is connected with the back plate 1 to form a housing with accommodating space, and the cover plate 2 is provided with an air inlet hole 211 and an air exhaust hole 221;

The fan 3 is arranged between the back plate 1 and the cover plate 2, the air inlet hole 211 is arranged on the cover plate 2, and the air inlet hole 211 is arranged toward the fan 3, This setting can facilitate the fan 3 to suck air from the air inlet hole 211;

A windshield 4, the windshield 4 abuts against the backboard 1 and the cover 2 respectively to form an air duct, and the fan 3 is arranged near one end of the air duct and blows air to the air duct . During use, when the condenser assembly is running, the fan 3 first sucks air through the air inlet 211, then blows the wind into the air duct from the end of the air duct near the fan, the wind runs along the air duct, and finally blows the air from the exhaust air duct. discharge from hole 221;

Condenser, the condenser includes an inlet 51, a condensation pipe 53 and an outlet 52, the refrigerant material flows into the condensation pipe 53 from the inlet 51, transfers heat to the condensation pipe 53 and dissipates heat outward through the condensation pipe 53, and finally from outflow port 52. The condensation pipe 53 is at least partially arranged on the track of the wind in the air duct. During use, the fan 3 continuously inhales external air and sends it into the air duct, the wind travels along the air duct and encounters the condensation pipe 53, and the condensation pipe 53 can be partially or completely located on the trajectory of the wind. The traveling wind absorbs the heat dissipated by the refrigerant material on the condenser tube 53 and finally discharges it from the exhaust hole 221 on the cover plate 2 , thereby achieving the purpose of cooling and cooling the refrigerant material in the condenser tube 53 .

Generally, the cover plate 2 can be configured to include a central plate 21 parallel to the back plate 1 and a plurality of folded edges 22 arranged toward the back plate 1, the multiple folded edges 22 are connected to the back plate 1 The plates 1 are connected to each other, so that a relatively regular accommodation space can be obtained. Of course, other arrangements that can ensure the formation of an accommodation space between the cover plate 2 and the back plate 1 are also feasible. The air inlet hole 211 is set on the central plate 21, and the air exhaust hole 221 is set on the folded edge 22. Further, in order to improve the efficiency of air discharge, each of the folded edges 22 A plurality of exhaust holes 221 are evenly arranged.

Further, the air inlet hole 211 is set to match the fan 3, and the fan 3 can pass through the air inlet hole 211 and be fixedly connected with the backplane 1. The air intake hole sucks air, and at the same time, the fan 3 can be installed on or removed from the backplane 1 through the air inlet hole 211, which is convenient for later maintenance.

Further, the condenser assembly also includes a cover net 31 covering the fan 3, and the fixed part of the cover net 31 is fixedly connected with the central plate 21, so that relatively large foreign objects in the surrounding environment can be avoided Inhale into the air duct to block the air duct. In addition, the cover net 31 can also effectively protect the fan 3 to prevent hard objects from colliding with the fan 3 and causing the fan 3 to be damaged.

When removing the heat on the condenser pipe 53, in order to reduce the space occupied by the condenser assembly, the windshield part 4 is respectively abutted against the center plate 21 and the cover plate 2 to form a spiral air duct, and the The fan 3 is arranged at one end close to the center of the spiral air duct and blows air to the air duct. Then, the condensing pipe 53 is passed through the spiral air duct surrounded by the windshield.

Regarding the setting of the windshield part 4, the windshield part 4 in this embodiment includes a first connecting plate 41 and a second connecting plate 42, and the first connecting plate 41 and the second connecting plate 42 respectively abut against the A spiral air duct is formed on the back plate 1 and the central plate 21, one end of the first connecting plate 41 is arranged close to the fan 3, and the other end of the first connecting plate 41 extends along the volute line to a distance from The position of the fan 3 is also connected to one end of the second connecting plate 42 , and the other end of the second connecting plate 42 extends along a zigzag spiral to a position on the central plate 21 close to the folded edge 22 , viewed as a whole, the first connecting plate 41, the second connecting plate 42, the back plate 1 and the central plate 21 still form a spiral air duct from inside to outside: wherein, the first connecting plate 41, The volute-shaped air channel formed by the central plate 21 and the back plate 1 facilitates the air sucked by the fan 3 to enter the air channel smoothly; and the second connecting plate 42, the central plate 21 and the back plate Plate 1 then forms the part of the back-shaped spiral air duct in the entire spiral air duct. This back-shaped spiral air duct can make the air sucked in from the outside stay in it for a short time, which is more conducive to the heat exchange between this part of the air and the condensation pipe 53. exchange, thereby absorbing the heat on the condensation pipe 53.

Further, in order to make the part of the condensation pipe 53 to be heat exchanged be fully and evenly distributed in the entire air duct, so as to improve the efficiency of heat exchange. Therefore, the inflow port 51 and the outflow port 52 are arranged at the end of the air duct away from the fan 3; The air passage is close to the outlet pipe 532 on one side of the fan, one end of the inflow pipe 531 is connected to the inlet 51, and the other end of the inflow pipe 531 extends along the air passage to the first The connecting plate 41 and the second connecting plate 42 are near the connection 43 and connected to one end of the outflow tube 532 , and the other end of the outflow tube 532 is connected to the outflow port 52 . With this design, the entire condensation pipe 53 will be located in the air duct, and the inflow pipe 531 and the outflow pipe 532 are evenly distributed in the entire air duct, which fully improves the utilization rate of the air duct and greatly improves the effect of heat exchange.

In addition, the inflow pipe 531 is in contact with the windshield 4 and the central plate 21, and the outflow pipe 532 is in contact with the central plate 21. While exchanging air cooling and heat, the The inflow pipe 531 can also dissipate heat through the wind shield 4 and the central plate 21 , while the outflow pipe 532 can dissipate heat through the central plate 21 , further improving the efficiency of heat exchange.

The present invention also provides a second embodiment. The difference between the second embodiment and the first embodiment lies in the setting of the windshield part and the condensation pipe. As shown in FIG. 7, in the second embodiment, the windshield part 4 includes A plurality of windshield ribs 44 surrounding the fan, these windshield ribs 44 are arranged along the radial direction of the fan 3, the number of the windshield ribs is at least 3, so as to form an effective These windshield ribs 44 respectively abut against the back plate 1 and the center plate 21 to form air channels, and these air channels surround the fans 3 in a fan shape, and the fans 3 are arranged to approach these fan-shaped air channels One end of the fan 3 supplies air, and the condensing pipe 53 is fixedly connected to the center plate 21 around the damper rib 44. One end of the condensing pipe 53 is connected to the inlet 51, and the other end is connected to the outlet 52. During the working process of the condenser assembly, the fan 3 absorbs air from the outside and then blows the air in from the fan-shaped air duct opening close to the fan. The wind in the channel is blown onto the condensation pipe 53 through the fan-shaped air passage and takes away the heat on the condensation pipe, and finally is discharged from the exhaust hole 221 . Since the condensing pipe 53 is fixedly connected to the central plate 21 , it can of course dissipate heat through the central plate 21 , so as to achieve a good heat dissipation effect. Since the settings of other components are the same as those in the first embodiment, details will not be repeated here.

The embodiment of the present invention also provides a refrigerator, including a box body, and a door body for opening and closing the box body, the box body includes an inner container and an outer shell, wherein the refrigerator also includes the first embodiment and the first embodiment. In the condenser assembly described in the second embodiment, the shell of the box body forms the back plate 1. In the actual processing process, the side wall of the shell can be selected as the back plate for the condenser assembly, or the shell can be selected to be opposite to the door of the refrigerator. One side of the body acts as a backplane.

In summary, the refrigerator and condenser assembly provided in this embodiment brings the following technical effects:

1. Solve the problem of poor heat dissipation in the micro-channel condenser and the surface condenser in the prior art;

2. The air duct is set as a back-shaped spiral air duct from the inside to the outside, which helps the circulating air to stay in the air duct, thereby ensuring the effect of heat exchange;

3. Connect the inflow pipe to the windshield part and the center plate, and connect the outflow pipe to the center plate. At the same time of air cooling and heat exchange, the inflow pipe can also pass through the windshield part and the center plate. Heat dissipation, while the outflow pipe can dissipate heat through the center plate, further improving the efficiency of heat exchange;

4. A plurality of air ducts are arranged radially along the fan, and the air absorbed by the fan can be blown toward the condensation pipe along these air passages, thereby effectively cooling the condensation pipe.

It should be understood that although this description is described according to implementation modes, not each implementation mode only includes an independent technical solution, and the description in the description is only for clarity, and those skilled in the art should take the description as a whole, and each The technical solutions in the embodiments can also be properly combined to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions for feasible implementations of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent implementation or implementation that does not depart from the technical spirit of the present invention All changes should be included within the protection scope of the present invention.

Claims

A condenser assembly, characterized in that it comprises:

Backplane(1);

A cover plate (2), the cover plate (2) is connected with the back plate (1) to form a housing with accommodating space, and the cover plate (2) is provided with air inlet holes (211) and exhaust wind hole (221);

A fan (3), the fan (3) is set between the back plate (1) and the cover plate (2), the air inlet hole (211) is set on the cover plate (2) and set towards the fan (3);

A windshield (4), the windshield (4) abuts against the backboard (1) and the cover (2) respectively to form an air duct, and the fan (3) is close to the air duct One end is configured to supply air to the air duct;

A condenser, the condenser includes an inflow port (51), an outflow port (52) and a condensation pipe (53), the condensation pipe (53) is at least partially arranged on the running track of the wind in the air duct.
The condenser assembly according to claim 1, characterized in that, the cover plate (2) comprises a central plate (21) parallel to the back plate (1) and a plurality of folded edges (22), the plurality of folded edges (22) are connected to the back plate (1), the air inlet hole (211) is arranged on the central plate (21), and the air exhaust Holes (221) are arranged on the folded edges (22), and a plurality of exhaust holes (221) are evenly arranged on each folded edge (22).
The condenser assembly according to claim 2, wherein the air inlet hole (211) is set to match the fan (3), and the fan (3) can pass through the air inlet hole ( 211) and fixedly connected with the backboard (1).
The condenser assembly according to claim 3, characterized in that, the condenser assembly further comprises a cover net (31) covering the fan (3), and the fixing part of the cover net (31) is in contact with The central board (21) is fixedly connected.
The condenser assembly according to claim 4, characterized in that, the windshield part (4) abuts against the central plate (21) and the cover plate (2) respectively to form a spiral air duct, and the The fan (3) is arranged at one end close to the center of the spiral air duct and supplies air to the air duct, and the condensation pipe (53) is set in the spiral air duct surrounded by the windshield.
The condenser assembly according to claim 5, wherein the windshield part comprises a first connecting plate (41) and a second connecting plate (42), the first connecting plate (41), the second connecting plate Two connecting plates (42) abut against the back plate (1) and the central plate (21) respectively to form a spiral air duct, and one end of the first connecting plate (41) is close to the fan (3) It is provided that the other end of the first connecting plate (41) extends along the volute line to a position away from the fan (3) and is connected with one end of the second connecting plate (42), the second connecting The other end of the plate (42) spirally extends to a position close to the flange (22) on the central plate (21) along a zigzag shape, the second connecting plate (42), the central plate (21) and The backboard (1) forms a back-shaped spiral air duct from inside to outside.
The condenser assembly according to claim 6, characterized in that, the inlet (51) and the outlet (52) are arranged at the end of the air duct away from the fan (3), and the condensation pipe (53) includes an inflow pipe (531) along the side of the air passage away from the fan (3) and an outflow pipe (532) along the side of the air passage near the fan (3), the inflow pipe One end of (531) is connected to the inlet (51), and the other end of the inflow pipe (531) extends along the air duct to the first connecting plate (41) and the second connecting plate (42) Near the connection (43) and connected to one end of the outflow pipe (532), the other end of the outflow pipe (532) is connected to the outflow port (52).
The condenser assembly according to claim 7, characterized in that, the inflow pipe (531) is in contact with the wind shield (4) and the central plate (21), and the outflow pipe (532) is in contact with the The central plates (21) are in abutment.
The condenser assembly according to claim 4, wherein the windshield part (4) comprises at least three windshield doors surrounding the fan (3) and arranged along the radial direction of the fan (3) Ribs (44), the damper ribs (44) abut against the back plate (1) and the center plate (21) respectively to form a plurality of air ducts, and the fan (3) is set to A plurality of air channels supply air near one end of the fan (3), and the condensation pipe (53) is fixedly connected to the center plate (21) around the damper rib (44).
A refrigerator, comprising a box body, and a door body for opening and closing the box body, the box body including an inner container and an outer shell, characterized in that the refrigerator also includes the refrigerator described in any one of claims 1-9. The condenser assembly of the box body forms the back plate (1).