Refrigerator

Abstract

The refrigerator comprises a refrigerator body, a storage space and a press bin are defined in the refrigerator body, the press bin is located at the bottom of the refrigerator body and provided with a compressor and a first fan, and a first air opening communicating the interior and the exterior of the press bin is formed in the bottom of the refrigerator body; the top of the box body is provided with a second air port which is communicated with the inside and the outside of the press cabin, one of the first air port and the second air port is an air inlet, and the other one is an air outlet; an air guide groove communicated with the first air opening and the second air opening is formed in the back of the box body. According to the refrigerator, the bottom-inlet and top-outlet or top-inlet and bottom-outlet heat dissipation air path is formed, the air guide groove is located in the heat dissipation air path so as to communicate the air inlet and the air outlet, the effect of guiding air flow is achieved, the heat dissipation effect of the refrigerator is improved, and therefore the refrigeration efficiency is improved. The radiator has the advantages of being high in radiating efficiency, good in radiating effect and reasonable in radiating air path arrangement.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration, in particular to a refrigerator. Background Art

[0002] Refrigerators in the prior art, especially built-in refrigerators, have a small space between the refrigerator and the cabinet, and the condenser, compressor, and fan are arranged in the compressor compartment at the bottom of the refrigerator, resulting in limited heat dissipation space and poor heat conduction, thereby affecting the refrigeration effect of the refrigerator. Therefore, it is necessary to study a refrigerator to solve the above problems. Summary of the invention

[0003] The present invention aims to provide a refrigerator with high heat dissipation efficiency and good heat dissipation effect.

[0004] In order to achieve the above objectives, an embodiment of the present invention provides a refrigerator, including a box body, a storage space and a press chamber defined in the box body, the press chamber is located at the bottom of the box body, the press chamber is provided with a compressor and a first fan, the bottom of the box body is provided with a first air port connected to the inside and outside of the press chamber, the top of the box body is provided with a second air port connected to the inside and outside of the press chamber, one of the first air port and the second air port is set as an air inlet, and the other is set as an air outlet;

[0005] Wherein, an air guide groove connecting the first air outlet and the second air outlet is formed on the back of the box.

[0006] As a further improvement of an embodiment of the present invention, the box body includes a press chamber back plate and a rear back plate extending upward from the press chamber back plate;

[0007] The air guide groove is formed at the junction of the rear back plate and the press chamber back plate;

[0008] Wherein, the air guide groove is extended from the inside of the press chamber to the outside of the press chamber.

[0009] As a further improvement of an embodiment of the present invention, the air inlet comprises a bottom air inlet arranged at the bottom of the box body and connected to the inside and outside of the press chamber, and the air outlet comprises a top air outlet arranged at the top of the box body;

[0010] The air guide groove is configured as an air outlet groove formed by inward depression of the lower portion of the rear back plate.

[0011] As a further improvement of one embodiment of the present invention, the back plate includes a vertical groove wall connected to the press chamber and an inclined air guide wall formed by extending the vertical groove wall upward, and the vertical groove wall and the inclined air guide wall are used to form the air outlet groove.

[0012] As a further improvement of an embodiment of the present invention, the top of the first fan extends into the air guide groove;

[0013] The top of the first fan is provided with a first opening which is opened upward, and the first opening extends out of an air guide groove to connect the inside and outside of the compressor compartment;

[0014] The first fan further includes a second opening disposed in the compressor compartment;

[0015] Wherein, one of the first opening and the second opening is set as an air intake port, and the other is set as an air exhaust port.

[0016] As a further improvement of an embodiment of the present invention, the rear wall of the fan is obliquely connected to the back plate of the compressor chamber;

[0017] Wherein, the pivot center line of the first fan forms an angle with the horizontal plane and the pivot center line is inclined in a direction from front to rear.

[0018] As a further improvement of an embodiment of the present invention, the aforementioned air inlet includes a top air inlet arranged at the top of the box body, and the aforementioned air outlet includes a bottom air outlet arranged at the bottom of the box body and connected to the inside and outside of the compressor chamber;

[0019] The air guide groove is configured as an air inlet groove formed by inward depression of the lower portion of the rear back plate.

[0020] As a further improvement of an embodiment of the present invention, the refrigerator further includes an air duct groove arranged on the outer wall of the back plate;

[0021] The air duct groove extends upward from the air guiding groove to connect the air guiding groove with the second air outlet.

[0022] As a further improvement of an embodiment of the present invention, the refrigerator further includes a plurality of vertical air guide plates arranged on the back plate and spaced apart in the left-right direction;

[0023] Wherein, the plurality of vertical air guide plates separate the air duct groove into a plurality of sub-air duct grooves.

[0024] As a further improvement of an embodiment of the present invention, the vertical air guide plate is arranged on the outer wall of the back plate;

[0025] The refrigerator further comprises a first condenser arranged on the inner wall of the back plate, and at least a part of the pipeline of the first condenser is extended in the same direction as the sub-air duct groove.

[0026] As a further improvement of an embodiment of the present invention, the box body further includes a bottom plate for defining the press chamber, a press chamber support plate extending upwardly from the front side of the bottom plate and connected to the press chamber back plate, the bottom plate includes a horizontal bottom plate vertically connected to the press chamber back plate, and a vertical bottom plate formed by bending the horizontal bottom plate upward and arranged adjacent to the press chamber support plate;

[0027] Wherein, the first air outlet is arranged on the horizontal bottom plate and / or the vertical bottom plate;

[0028] The first air outlet is provided with a plurality of through holes at intervals along the left-right direction of the bottom plate.

[0029] As a further improvement of an embodiment of the present invention, the compressor and the first fan are arranged at intervals along the left-right direction of the horizontal bottom plate;

[0030] At least a portion of the through hole is disposed in front of the compressor.

[0031] As a further improvement of an embodiment of the present invention, the first fan is configured as a centrifugal fan.

[0032] Compared with the prior art, the beneficial effect of the present invention is that the refrigerator provided by the present invention is provided with an air inlet at the bottom of the box body and an air outlet at the top of the box body; or an air inlet is provided at the top of the box body and an air outlet is provided at the bottom of the box body; so as to form a heat dissipation air path with bottom inlet and top outlet or top inlet and bottom outlet, and the air guide groove is provided at the back of the box body, and the heat dissipation path is reasonably provided, and the air guide groove is located on the heat dissipation air path to connect the air inlet and the air outlet, play a role in guiding the air flow, so as to improve the heat dissipation effect of the refrigerator, thereby improving the refrigeration efficiency. It has the advantages of high heat dissipation efficiency, good heat dissipation effect, and reasonable setting of the heat dissipation air path. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of a refrigerator in a rear view direction according to a first embodiment of the present invention;

[0034] Figure 2 This is a schematic structural diagram of a refrigerator according to a first embodiment of the present invention, which includes a three-stage condenser and a heat dissipation air path with bottom-in and top-out;

[0035] Figure 3 This is a schematic structural diagram of a refrigerator according to a first embodiment of the present invention, which includes a two-stage condenser and a heat dissipation air path with bottom-in and top-out;

[0036] Figure 4 This is a schematic structural diagram of a refrigerator according to a first embodiment of the present invention, which includes a two-stage condenser and a heat dissipation air path that enters from the top and exits from the bottom;

[0037] Figure 5 This is a schematic diagram of the structure of a refrigerator in a bottom-up view according to a first embodiment of the present invention;

[0038] Figure 6 This is a schematic structural diagram of an air guide groove of a refrigerator according to a first embodiment of the present invention;

[0039] Figure 7 for Figure 6 Schematic diagram of the enlarged structure of the C region;

[0040] Figure 8 It is a schematic structural diagram of a refrigerator in the first embodiment including a multi-layer condensation pipeline;

[0041] Fig. 9 This is a schematic structural diagram of an implementation scheme of a multi-layer condensation pipeline of a refrigerator in the first implementation scheme of the present invention;

[0042] Fig.10 This is a schematic diagram of the structure inside the evaporating dish of the refrigerator according to the first embodiment of the present invention;

[0043] Fig.11 This is a schematic structural diagram of a refrigerator according to a first embodiment of the present invention;

[0044] Fig.12 for Fig. 9 A schematic diagram of the structure in a top-down direction;

[0045] Fig.13 for Fig.12 Schematic diagram of the cross-sectional structure in the AA direction;

[0046] Fig.14 for Fig.11 A schematic diagram of the structure of the air outlet duct;

[0047] Fig.15 It is a schematic diagram of the structure inside the compressor compartment of the refrigerator according to the second embodiment of the present invention;

[0048] Fig.16 It is a schematic diagram of the installation structure of the first fan of the refrigerator according to the second embodiment of the present invention;

[0049] Fig.17 for Fig.15 A schematic diagram of the structure in the upward direction;

[0050] Fig.18 for Fig.17 Schematic diagram of the cross-sectional structure in the BB direction. DETAILED DESCRIPTION

[0051] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0052] The terms "including" and "having" and any variations thereof in the present invention are intended to cover non-exclusive inclusions. Reference to "embodiments" herein means that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0053] It should be understood that, in the description of the present invention, the terms "first", "second", etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "connected", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the present invention, unless otherwise clearly stipulated and limited, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them.

[0056] Figures 1 to 14 A refrigerator provided by a first embodiment of the present invention is shown.

[0057] Combination Figure 1 As shown, the present invention mainly relates to: a refrigerator, comprising a box body 1, wherein the box body 1 defines a storage space and a press chamber 11. It should be noted that the number and structure of the storage space can be set according to actual needs.

[0058] The refrigerator also includes a door body for opening or closing the storage space. The refrigerator of the present invention is preferably a built-in refrigerator, which is used to be embedded in a cabinet or other storage space to save indoor space.

[0059] In the invention, when a user opens the door, the direction facing is defined as the front. The door is installed on the front side of the box body 11.

[0060] The compressor compartment 11 is located at the bottom of the box body 1, and is provided with a compressor 67 and a first fan 41. The first fan 41 is configured to discharge the heat in the compressor compartment 11 in a timely and effective manner to ensure the refrigeration effect of the refrigerator.

[0061] The bottom of the box body 1 is provided with a first air port connected to the inside and outside of the press chamber 11, and the top of the box body 1 is provided with a second air port connected to the inside and outside of the press chamber 11. One of the first air port and the second air port is set as an air inlet, and the other is set as an air outlet, that is, a heat dissipation air path with bottom inlet and top outlet or top inlet and bottom outlet is formed.

[0062] Reference Figures 2 to 6 As shown, an air guide groove 153 connecting the first air outlet and the second air outlet is formed on the back of the box body 1.

[0063] Reference Figure 2 As shown, in the first embodiment of the heat dissipation air path, the air inlet is arranged at the bottom of the box body 11, and the air outlet is arranged at the top of the box body 11. The air passes through the bottom of the box body 11, the compressor compartment 11, the air guide groove 153, the back of the box body 11, and the top of the box body 11 in sequence, forming a bottom-in and top-out heat dissipation air path. The air is used multiple times, and the air guide groove 153 serves to guide the airflow of the compressor compartment 11 to flow outward and upward along the back of the box body 11, thereby improving the heat dissipation effect in the compressor compartment 11 of the refrigerator.

[0064] Reference Figure 4 As shown, in the second embodiment of the heat dissipation air path, the air inlet is arranged at the top of the box body 11, and the air outlet is arranged at the bottom of the box body 11. The air passes through the top of the box body 11, the back of the box body 11, the air guide groove 153, the compressor chamber 11, and the bottom of the box body 11 in sequence, forming a heat dissipation air path with top in and bottom out. The air guide groove 153 serves to guide the airflow outside the box body 1 to flow downward into the compressor chamber 11, thereby improving the heat dissipation effect in the compressor chamber 11 of the refrigerator.

[0065] In summary, no matter it is a bottom-in-top-out heat dissipation air path or a top-in-bottom-out heat dissipation air path, the air guide groove 153 is located on the heat dissipation air path, and the heat dissipation path is reasonably arranged to guide the air flow, thereby improving the heat dissipation effect of the refrigerator, thereby improving the refrigeration efficiency. It has the advantages of high heat dissipation efficiency and good heat dissipation effect.

[0066] Furthermore, the box body 1 includes a press chamber back plate 13 and a rear back plate 15 extending upward from the press chamber back plate 13 .

[0067] Combination Figure 6As shown, the air guide groove 153 is formed at the junction of the rear back plate 15 and the press chamber back plate 13. The air guide groove 153 is extended from the inside of the press chamber 11 to the outside of the press chamber 11. The air guide groove 153 connects the inside and outside of the press chamber 11, and guides the air in the press chamber 11 to flow from the outside and flow upward along the rear back plate 15, or guides the air of the rear back plate 15 to flow downward into the press chamber 11.

[0068] Further, the air inlet includes a bottom air inlet 161 disposed at the bottom of the box body 1 and communicating with the inside and outside of the press chamber 11. The air outlet includes a top air outlet 162 disposed at the top of the box body 1, forming a bottom-in and top-out heat dissipation air path.

[0069] The air guide groove 153 is an air outlet groove formed by the lower part of the back plate 15 being recessed inwardly, and guides the air in the compressor chamber 11 to flow from the outside and upward along the back plate 15. The bottom opening of the air outlet groove is arranged to communicate with the compressor chamber 11.

[0070] Reference Figure 7 As shown, further, the back plate 15 includes a vertical groove wall 154 connected to the press chamber 11, and an inclined air guide wall 155 formed by the vertical groove wall 154 extending upward. The vertical groove wall 154 and the inclined air guide wall 155 are used to form an air outlet groove. The back plate 15 also includes two groove side walls respectively arranged on both sides. The vertical groove wall 154, the inclined air guide wall 155, and the two groove side walls are used together to form an air outlet groove. The inclined air guide wall 155 extends backward in an inclined direction from bottom to top.

[0071] Furthermore, the top of the first fan 41 extends into the air guide groove 153. Preferably, the first fan 41 and the air guide groove 153 are sealed and connected to increase the air suction or exhaust volume of the first fan 41, thereby improving the heat dissipation effect and heat dissipation efficiency of the compressor chamber 11.

[0072] The top of the first fan 41 is provided with a first opening which is opened upwards, and the first opening extends out of the air guide groove 153 to connect the inside and outside of the press chamber 11. The first fan 41 also includes a second opening provided in the press chamber 11.

[0073] Among them, one of the first opening and the second opening is set as an air intake port, and the other is set as an air exhaust port.

[0074] In the first implementation mode of the heat dissipation air path, the air inlet is arranged at the bottom of the box body 11 and the air outlet is arranged at the top of the box body 11, forming a bottom-in and top-out heat dissipation air path, the first opening is arranged as an exhaust port, and the second opening is arranged as an air intake port formed by the front wall of the first fan 41.

[0075] In the second implementation mode of the heat dissipation air path, the air inlet is arranged at the top of the box body 11, and the air outlet is arranged at the bottom of the box body 11, forming a heat dissipation air path with top inlet and bottom outlet. The first opening is set as the air intake port, and the second opening is set as the air exhaust port formed by the front wall of the first fan 41.

[0076] Furthermore, the air inlet includes a top air inlet 171 disposed at the top of the box body 1, and the air outlet includes a bottom air outlet 172 disposed at the bottom of the box body 1 and connected to the inside and outside of the compressor chamber 11, forming a heat dissipation air path with top inlet and bottom outlet.

[0077] The air guide groove 153 is configured as an air inlet groove formed by the lower portion of the rear back plate 15 being recessed inwardly.

[0078] Furthermore, the refrigerator also includes an air duct groove 154 arranged on the outer wall of the back plate 15 .

[0079] The air duct groove 154 extends upward from the air guide groove 153 to connect the air guide groove 153 with the second air outlet. When the second air outlet is the top air outlet 162, the air in the compressor chamber 11 flows upward through the air guide groove 153 into the air duct groove 154, and the air duct groove 154 guides the air to flow upward, so as to be emitted outward from the top air outlet 162.

[0080] When the second air port is the top air inlet 171 , the air passes through the top of the box body 11 in sequence, and then flows downward through the air duct groove 154 , flows downward through the air guide groove 153 and flows into the compressor chamber 11 .

[0081] In summary, the air duct groove 154 and the air guide groove 153 guide the air flow at the back of the box body 1 to improve the heat dissipation efficiency and heat dissipation effect.

[0082] Furthermore, the refrigerator further includes a plurality of vertical air guide plates 53 disposed on the back of the box body 1 and spaced apart in the left-right direction. By providing the vertical air guide plates 53, the airflow can flow evenly along the back of the box body 11, which plays a role in guiding the air flow and making the heat dissipation uniform. Thus, the heat dissipation efficiency of the refrigerator is improved, so as to improve the refrigeration efficiency. Among them, the plurality of vertical air guide plates 53 are respectively disposed on the back plate 15.

[0083] The plurality of vertical air guide plates 53 separate the air duct groove 154 into a plurality of sub-air duct grooves 154 .

[0084] Furthermore, the vertical air guide plate 53 is disposed on the outer wall of the rear back plate 15 .

[0085] The refrigerator further includes a first condenser 64 disposed on the inner wall of the back plate 15 , and at least a portion of the pipeline of the first condenser 64 is extended in the same direction as the sub-air duct groove 154 .

[0086] The first condenser 64 is disposed on the inner wall of the rear back plate 15, and at least part of the pipeline of the first condenser 64 is disposed in the same direction as the sub-air duct. At least part of the pipeline of the first condenser 64 is disposed correspondingly on the inner side of the sub-air duct.

[0087] When the first fan 41 is running, when air flows through the rear plate, the first condenser 64 on the inner wall of the rear plate 15 is cooled down, thereby improving the heat dissipation effect of the first condenser 64 .

[0088] Combination Figure 8 As shown, the pipeline of the first condenser 64 includes a plurality of vertical segment condenser tubes 641 extending from bottom to top and an arc segment condenser tube 642 connecting two adjacent vertical segment condenser tubes 641 .

[0089] The pipeline of the first condenser 64 is arranged to extend spirally from top to bottom. The total length of the multiple vertical section condenser tubes 641 is much longer than the total length of the multiple arc section condenser tubes 642. Therefore, cooling the multiple vertical section condenser tubes 641 is more important. Among them, the vertical section condenser tubes 641 are arranged on the inner side of the multiple sub-air ducts. Therefore, the vertical section condenser tubes 641 are arranged on the inner side of the multiple sub-air ducts, which can fully utilize the air and improve the heat dissipation effect of the refrigerator refrigeration system.

[0090] Furthermore, the box body also includes a bottom plate 12 for defining a press chamber, a press chamber support plate 14 extending upward and obliquely from the front side of the bottom plate 12 and connected to the press chamber back plate, the bottom plate 12 includes a horizontal bottom plate 122 vertically connected to the press chamber back plate 13, and a vertical bottom plate 123 formed by bending the horizontal bottom plate 122 upward and arranged adjacent to the press chamber support plate 14.

[0091] Wherein, the horizontal bottom plate 122 and / or the vertical bottom plate 123 are provided with a first air outlet.

[0092] The first air outlet is provided with a plurality of through holes at intervals along the left-right direction of the bottom plate 12 .

[0093] Furthermore, the compressor and the first fan are arranged at intervals along the left-right direction of the horizontal bottom plate;

[0094] At least a portion of the through hole is provided in front of the compressor.

[0095] Furthermore, the first fan 41 is preferably a centrifugal fan, which has strong wind resistance and is suitable for use in long air ducts. The air is accelerated by a high-speed rotating impeller, and then decelerated and changed in direction to be discharged from the exhaust port. This has the advantage of good heat dissipation effect.

[0096] Secondly, the first fan 41 can be an axial flow fan or a cross flow fan.

[0097] Combination Figures 2 to 4As shown, in this embodiment, the refrigerator includes at least two-stage condensers. The refrigerator includes a first condenser 64 arranged at the bottom of the box body 1 or the back of the box body 1, and a second condenser 65 arranged in the press chamber 11. The multi-stage condenser is arranged to improve the condensation effect of the refrigerator's refrigeration system and improve the space utilization.

[0098] The bottom of the box body 1 is provided with a first air port connected to the inside and outside of the press chamber 11, and the top of the box body 1 is provided with a second air port connected to the inside and outside of the press chamber 11. Among them, one of the first air port and the second air port is set as an air inlet, and the other is set as an air outlet.

[0099] Reference Figure 2 As shown, when the air inlet is set at the bottom of the box body 1 and the air outlet is set at the top of the box body 1, the heat dissipation air path passes through the compressor chamber 11, and the air passes through the bottom of the box body 1, the compressor chamber 11, the back of the box body 1, and the top of the box body 1 in turn, forming a bottom-in and top-out heat dissipation air path. The air is used multiple times to cool the first condenser 64 and the second condenser 65, thereby improving the heat dissipation effect of the refrigerator refrigeration system.

[0100] When the air inlet is set at the top of the box body 1 and the air outlet is set at the bottom of the box body 1, the heat dissipation air path passes through the compressor chamber 11, and the air passes through the top of the box body 1, the back of the box body 1, the compressor chamber 11, and the bottom of the box body 1 in turn, forming a heat dissipation air path with top in and bottom out. The air is used multiple times to cool the first condenser 64 and the second condenser 65, thereby improving the heat dissipation effect of the refrigerator refrigeration system.

[0101] Reference Figure 2 As shown, further, in the first embodiment of the condenser, the refrigerator includes a three-stage condenser. The arrangement of the three-stage condenser can maximize the use of air on the heat dissipation wind path. The refrigerator also includes a third condenser.

[0102] The first condenser 64 is arranged at the bottom of the box 1, the second condenser 65 is arranged in the compressor chamber 11, and the third condenser 66 is arranged at the back of the box 1. The air passing through the bottom, the compressor chamber 11, and the back on the heat dissipation air path cools down the first condenser 64, the second condenser 65, and the third condenser 66 respectively.

[0103] Furthermore, since the ratio of the available area at the bottom of the box body 1 to the available area at the back of the box body 1 is generally between 1:3 and 1:5, the first fan 41 can be calculated based on the area blown through, and the ratio of the length of the first condenser to the length of the second condenser is in the range of 1:1 to 1:2.

[0104] The ratio of the length of the first condenser to the length of the third condenser ranges from 1:2 to 1:4.

[0105]

[0106] Preferably, referring to the experimental results, the ratio of the length of the first condenser, the length of the second condenser, and the length of the third condenser is 2:3:5. The heat dissipation effect of the condenser is the best.

[0107] Furthermore, the box body 1 includes a bottom plate 12, a press chamber back plate 13, a back plate 15 extending upward from the press chamber back plate 13, and a press chamber support plate 14 extending upward obliquely from the front side of the bottom plate 12. The bottom plate 12, the press chamber back plate 13, the back plate 15, and the press chamber support plate 14 are all made of metal materials with thermal conductivity.

[0108] The press chamber support plate 14 includes a support bottom 141 adjacent to the front side of the bottom plate 12, a support inclined portion 142 extending obliquely upward and backward from the support bottom 141, and a support top 143 extending horizontally backward from the support inclined portion 142 to the press chamber back plate 13. In this embodiment, the bottom of the box body 1 includes the bottom plate 12 and the support bottom 141.

[0109] The bottom plate 12 , the press chamber back plate 13 , the support inclined portion 142 and the support top portion 143 together define the press chamber 11 .

[0110] In order to facilitate fixed installation and protect the first condenser 64 , the first condenser 64 is disposed on the inner wall of the support bottom 141 , and the third condenser 66 is disposed on the inner wall of the rear back plate 15 .

[0111] Taking the bottom-in and top-out heat dissipation air path as an example, the air inlet is arranged between the support bottom 141 and the bottom plate 12, or the air inlet is arranged on the bottom plate 12, and the outside air enters through the air inlet at the front bottom of the box body 1, and the air passes through the support bottom 141 in turn. The air will cool down the first condenser 64 by utilizing the thermal conductivity of the material of the support bottom 141. When the air enters the compressor compartment 11, the second condenser 65 is cooled down. When the air goes out of the compressor compartment 11 and flows upward through the back plate 15, the air will cool down the third condenser 66 by utilizing the thermal conductivity of the back plate 15 material, thereby achieving the purpose of cooling and dissipating the first condenser 64, the second condenser 65, and the third condenser 66, so as to improve the heat dissipation efficiency, enhance the heat dissipation effect, and thus improve the refrigeration effect of the refrigerator.

[0112] In a specific implementation of the bottom-in and top-out heat dissipation air path, the box body 1 includes a press chamber back plate 13 and a rear back plate 15 extending upward from the press chamber back plate 13 .

[0113] The air inlet includes a bottom air inlet 161 disposed at the bottom of the housing 1 and connected to the inside and outside of the press chamber 11, and the air outlet includes a top air outlet 162 disposed at the top of the housing 1. Preferably, the top air outlet 162 is disposed forward or obliquely upward. A back air outlet 133 is formed on the press chamber back plate 13 to connect the inside and outside of the press chamber 11. The refrigerator forms a heat dissipation air path that passes through the bottom air inlet 161, the back air outlet 133, and the top air outlet 162 in sequence.

[0114] Preferably, the bottom air inlet 161 is disposed between the support bottom 141 and the bottom plate 12, or the bottom air inlet 161 is disposed on the bottom plate 12. The bottom-in and top-out heat dissipation air path for the first condenser 64, the second condenser 65, and the third condenser 66 has been specifically described above and will not be described in detail here.

[0115] When the first fan 41 is running, the air outside the compressor compartment 11 enters through the bottom air inlet 161, is sucked in by the first fan 41, and then passes through the first fan 41 and is discharged upward along the outer side of the compressor compartment back plate 13, and then is discharged into the environment through the top air outlet 162, so as to form a circulating heat dissipation mode of entering from the bottom, passing through the back, and then passing through the top of the box body 1, so as to improve the heat dissipation efficiency and ultimately improve the refrigeration efficiency of the refrigerator.

[0116] The first fan 41 has an air intake and an air exhaust. For the implementation of the bottom-in and top-out heat dissipation air path, the air intake is arranged at the front of the first fan 41, and the air exhaust is arranged at the top of the first fan 41. Preferably, the top of the first fan 41 is exposed to the outside of the compressor chamber back plate 13 through the back air outlet 133, so as to improve the air intake capacity of the first fan 41.

[0117] Reference Figure 4 As shown, in the specific implementation of the top-in and bottom-out heat dissipation air path, the box body 1 includes a press chamber back plate 13 and a rear back plate 15 extending upward from the press chamber back plate 13. The air inlet includes a top air inlet 171 arranged at the top of the box body 1, and the air outlet includes a bottom air outlet 172 arranged at the bottom of the box body 1 and communicating with the inside and outside of the press chamber 11. Preferably, the top air inlet 171 is arranged backward.

[0118] A back air inlet is formed on the compressor compartment back plate 13 to communicate with the inside and outside of the compressor compartment 11. The refrigerator forms a heat dissipation air path that passes through the top air inlet 171, the back air inlet, and the bottom air outlet 172 in sequence.

[0119] Preferably, the bottom air outlet 172 is disposed between the supporting bottom 141 and the bottom plate 12 , or the bottom air outlet 172 is disposed on the bottom plate 12 .

[0120] Driven by the first fan 41, the outside air passes through the top air inlet 171 on the top of the box body 1, and then passes through the back plate 15. The air uses the thermal conductivity of the material of the back plate 15 to cool the third condenser 66. Then, the air enters the compressor compartment 11 through the back air inlet to cool the second condenser 65. When the air flows forward through the bottom air outlet 172, the air passes through the supporting bottom 141. The air uses the thermal conductivity of the material of the supporting bottom 141 to cool the first condenser 64, thereby achieving the purpose of cooling and dissipating the third condenser 66, the second condenser 65, and the first condenser 64 respectively, so as to improve the heat dissipation efficiency, enhance the heat dissipation effect, and thus improve the refrigeration effect of the refrigerator.

[0121] The first fan 41 has an air intake and an air exhaust. For the implementation of the top-in and bottom-out heat dissipation air path, the air intake is arranged at the top of the first fan 41, and the air exhaust is arranged at the front of the first fan 41. Preferably, the top of the first fan 41 is exposed to the outside of the compressor chamber back plate 13 through the back air intake.

[0122] Furthermore, vertically extending windshield strips 151 are respectively provided at the left and right edges of the outer wall of the back plate 15, which can effectively allow wind to pass through the back to enhance heat exchange. Among them, an air guide duct is defined between the two windshield strips 151. The airflow can flow evenly along the air guide duct, which plays a role in guiding the air flow and makes the heat dissipation uniform. Therefore, the heat dissipation efficiency of the refrigerator is improved, so as to improve the refrigeration efficiency.

[0123] Furthermore, the first fan 41 is arranged on the inner wall of the back plate 13 of the press chamber. The refrigerator further comprises a fan bracket for fixing the first fan 41 on the inner wall of the back plate 13 of the press chamber.

[0124] The first fan 41 is fixed to the compressor chamber back plate 13 via a fan bracket. Preferably, the top of the first fan 41 is exposed to the outside of the compressor chamber back plate 13 via a back air outlet 133 or a back air inlet.

[0125] In one embodiment of the second condenser 65, the refrigerator further includes an evaporating dish 24 having a receiving cavity 242. The second condenser 65 extends upward from the receiving cavity 242.

[0126] A portion of the second condenser 65 is disposed in the accommodating chamber 242 , and another portion of the second condenser 65 is disposed outside the accommodating chamber 242 .

[0127] Furthermore, the refrigerator further includes an evaporator disposed in the housing 1, a refrigeration chamber for accommodating the evaporator, and a defrost drain pipe connecting the refrigeration chamber and the accommodating chamber 242. The defrost drain pipe guides the defrost water generated when the evaporator is defrosted into the accommodating chamber 242. The defrost water in the evaporating dish 24 can cool the pipeline of the second condenser 65.

[0128] Furthermore, the first condenser 64 is configured as a steel tube condenser or a microchannel condenser.

[0129] Combination Figure 5 As shown, further, the first fan 41 is disposed between the compressor 67 and the second condenser 65. In this embodiment, the compressor 67 and the first fan 41 are spaced apart from each other along the left-right direction of the bottom of the housing 1.

[0130] When air is sucked into the compressor chamber 11 under the drive of the first fan 41, the compressor 67 and the second condenser 65 can be cooled at the same time. A plurality of first air outlets are provided, and each group of first air outlets includes a plurality of through holes. The plurality of through holes are arranged at intervals along the left and right directions of the bottom of the box body 1, and the front side of the compressor 67 and the front side of the second condenser 65 are provided with through holes, which can increase the heat dissipation efficiency in the compressor chamber 11.

[0131] In another implementation manner of the second condenser 65 , the refrigerator further includes a supporting structure disposed on the top of the accommodating cavity 242 .

[0132] The second condenser 65 includes multiple layers of condensation pipelines arranged at intervals in the vertical direction, at least one layer of condensation pipelines is arranged in the accommodating chamber 242, and at least one layer of condensation pipelines is arranged above the supporting structure. The defrost drain pipe guides the defrost water generated when the evaporator is defrosted into the accommodating chamber 242, thereby cooling the condensation pipelines in the accommodating chamber 242. The condensation pipelines above the supporting structure are cooled by the airflow inside and outside the compressor chamber 11. Through such an arrangement, on the basis of the original structure, by adding a supporting structure on the top of the evaporating dish 24 and designing related structures on the supporting structure, the condensation pipelines can be arranged in multiple layers, making full use of the space of the compressor chamber 11. It has the advantages of compact structure, reasonable layout and high space utilization.

[0133] refer to Figure 8 and Fig. 9 As shown, an embodiment of a multi-layer condensation pipeline includes at least three layers. The condensation pipeline includes a first layer of condensation pipeline 61 arranged in the accommodating cavity 242, a second layer of condensation pipeline 62 and a third layer of condensation pipeline 63 respectively arranged above the support structure. The refrigerator also includes a fixing bracket 7 fixed to the top of the support structure. The fixing bracket 7 is used to fix and install the condensation pipeline arranged above the support structure.

[0134] The second layer condensation pipeline 62 and the third layer condensation pipeline 63 are respectively arranged at the top and bottom of the fixed bracket 7. The second layer condensation pipeline 62 is arranged directly above the third layer condensation pipeline 63 through the fixed bracket 7. Thus, the space above and below the support structure does not need to add extra space in the press chamber 11 for the arrangement of the multi-layer condensation pipelines.

[0135] Furthermore, the fixing bracket 7 is integrally formed, and includes a plurality of vertical plates 71 spaced apart along the length direction of the supporting structure and arranged above the supporting structure, and a fixing plate 73 fixing the vertical plates 71 to the top of the supporting structure. The vertical plates 71 are extended along the width direction of the supporting structure. The length direction refers to the left-right direction. The width direction refers to the front-back direction.

[0136] Furthermore, a plurality of penetrating upper fixing holes 711 are arranged at intervals on the top of the vertical plate 71 along the extension direction of the vertical plate 71 , and the top of the upper fixing hole 711 has an upper installation opening, and the second layer condensation pipeline 62 is installed in the upper fixing hole 711 through the upper installation opening.

[0137] At least part of the second layer condensation pipeline 62 is extended along the length of the support structure. The second layer condensation pipeline 62 includes a horizontal pipeline portion extending along the length of the support structure and an arc pipeline portion connecting two adjacent horizontal pipeline portions. The length of the horizontal pipeline portion is much greater than the length of the arc pipeline portion.

[0138] refer to Figure 8 As shown, a fixing method of the third layer condensation pipe 63, the bottom of the vertical plate 71 is provided with a plurality of penetrating lower fixing holes 712 at intervals along the extending direction of the vertical plate 71, the bottom of the lower fixing hole 712 has a lower mounting opening, and the third layer condensation pipe 63 is mounted on the lower fixing hole 712 through the lower mounting opening. The structure of the lower fixing hole 712 is symmetrically arranged with the upper fixing hole 711.

[0139] At least part of the third-layer condensation pipeline 63 is extended along the length of the support structure. The structure of the third-layer condensation pipeline 63 is the same as that of the second-layer condensation pipeline 62.

[0140] Furthermore, the vertical plate 71 is provided with a plurality of long air guide ports 72 equally spaced in the vertical direction, and the long air guide ports 72 are extended in the width direction of the support structure. The long air guide ports 72 play a role in guiding the airflow of the compressor chamber 11. The number of the long air guide ports 72 is set to be multiple, and the plurality of long air guide ports 72 are spaced in the height direction of the support structure, so that the second layer condensation pipeline 62 and the third layer condensation pipeline 63 are evenly cooled.

[0141] refer to Fig.10 As shown, another way of fixing the third-layer condensing pipeline 63 is that the refrigerator also includes a fixing seat unit arranged on the top of the evaporating dish 24, and the fixing seat unit includes a plurality of elastic fixing members 25 arranged at intervals and used for the third-layer condensing pipeline 63 to pass through and install, and a holder 26 for installing the elastic fixing members 25, and the elastic fixing members 25 include elastic material.

[0142] Further, one end of the card seat 26 is connected to the top of the support structure, and the other end of the card seat 26 is a free end. An installation space for installing the elastic fixing member 25 is defined between the card seat 26 and the support structure. The elastic fixing member 25 is installed in the installation space by lifting the free end of the card seat 26 upward. The elastic fixing member 25 can be made of sponge or foam. There are many implementation methods of the card seat 26. For example, the card seat 26 is set as a rectangular frame structure to define an installation space for installing the elastic fixing member 25 between the card seat 26 and the support structure. It has the advantages of easy installation and reduced cost.

[0143] It is understandable that the first layer of condensation pipeline 61 can also be fixed by a fixed seat unit, and the inner wall of the accommodating cavity 242 is also provided with a fixed seat unit, and the fixed seat unit on the inner wall of the accommodating cavity 242 is used to fix the first layer of condensation pipeline 61.

[0144] Furthermore, one end of the holder 26 is connected to the inner wall of the evaporating dish 24 , and the other end of the holder 26 is a free end. An installation space for installing the elastic fixing member 25 is defined between the holder 26 and the evaporating dish 24 .

[0145] Furthermore, the airflow of the compressor chamber 11 can fully cool down the multi-layer condensation pipeline and then be discharged from the compressor chamber 11. The heat dissipation path has the advantage of being reasonably arranged.

[0146] Furthermore, it also includes a fastener for fixing the support structure to the top of the evaporating dish 24, and a fixing column disposed on the evaporating dish 24 and used for threaded cooperation with the fastener.

[0147] The fasteners pass through the evaporating dish 24 and are fastened to the fixing column, and the fasteners form a whole with the supporting structure and the evaporating dish 24. Through such an arrangement, the evaporating dish 24, the supporting structure, and the multi-layer pipelines of the condenser form a whole, which is convenient for installation and has the advantages of modularization and systematization.

[0148] Furthermore, the refrigerator further comprises an air outlet duct arranged at the back of the box body 1 and a second fan 43 arranged in the air outlet duct. Preferably, the second fan 43 is configured as a cross-flow fan.

[0149] Combination Figures 11 to 14 As shown, further, when the air inlet is set at the bottom of the box body and the air outlet is set at the top of the box body, the heat dissipation air path passes through the compressor chamber to form a bottom-in and top-out heat dissipation air path, the duct air inlet 55 of the air outlet is formed in the compressor chamber 11, and the duct air outlet 57 of the air outlet is formed at the top of the box body 1. Driven by the second fan 43, the air in the compressor chamber 11 is guided to the top of the box body 1 through the back of the box body 1 through the duct air inlet 55 and the air outlet, and discharged from the top of the box body 1 to the environment through the duct air outlet 57. To form a heat dissipation path for the refrigerator. It has the advantages of reasonable heat dissipation path and high heat dissipation efficiency.

[0150] Further, when the air inlet is set at the top of the box body and the air outlet is set at the bottom of the box body, the heat dissipation air path passes through the press chamber to form a heat dissipation air path with upper inlet and lower outlet, the air duct inlet of the air outlet is formed at the top of the box body 1, and the air duct outlet of the air outlet is formed in the press chamber 11. This structure is the same as the heat dissipation air path with lower inlet and upper outlet, except that the positions of the air duct inlet and air duct outlet are reversed. It will not be described in detail here.

[0151] The following description will be made by taking as an example that the air duct inlet 55 of the air duct is formed in the compressor chamber 11 , and the air duct outlet 57 of the air duct is formed on the top of the housing 1 .

[0152] Combination Fig.13 As shown, further, the air outlet includes a first air outlet 54 having an air duct inlet 55 formed on the back of the box body 1, and a second air outlet 56 formed on the top of the box body 1 and connected to the first air outlet 54. The first air outlet 54 extends upward from the air duct inlet 55, and the second air outlet 56 extends forward from the top of the first air outlet 54.

[0153] Combination Fig.11 As shown, the second air outlet 56 has an air outlet 57. The second fan 43 is arranged at the intersection of the first air outlet 54 and the second air outlet 56. The second fan 43 is arranged at the rear side of the top of the box body 1. It has the advantages of compact structure and reasonable layout.

[0154] Furthermore, the housing 1 includes a press chamber back plate 13 for defining the press chamber 11 , a rear plate 15 extending upward from the press chamber back plate 13 , and an air duct plate 58 disposed on the outer side of the rear plate 15 .

[0155] The refrigerator also includes a back air outlet 133 disposed on the compressor compartment back plate 13 and connected to the inside and outside of the compressor compartment 11, and the back air outlet 133 is disposed upward. Among them, the back air outlet 133 is disposed upward. When the first fan 41 is running, the air outside the compressor compartment 11 enters through the air inlet driven by the first fan 41, first cools the compressor 67 of the compressor compartment 11, and then is discharged outside the compressor compartment 11. The air discharged outside the compressor compartment 11 flows along the first air outlet 54 and the second air outlet 56 driven by the second fan 43, and is discharged to the environment from the top of the box body 1 through the air duct outlet 57.

[0156] The back air outlet 133 is arranged at the joint between the compressor chamber back plate 13 and the rear back plate 15. A first air outlet 54 is formed between the rear back plate 15 and the air duct plate 58. An air duct inlet 55 of the first air outlet 54 is formed at the back air outlet 133. The rear back plate 15 is recessed inwardly to form an air duct groove for forming the first air outlet 54.

[0157] Combination Fig.14As shown, the third condenser 66 is arranged in the first air outlet 54. The third condenser 66 is arranged between the air duct inlet 55 and the second fan 43. The air discharged from the back air outlet 133 flows along the first air outlet 54 and the second air outlet 56 under the drive of the second fan 43, and the air cools the third condenser 66. The third condenser 66 is arranged in the path of the air flow, which has the advantages of reasonable layout and high heat dissipation efficiency.

[0158] Furthermore, the box body 1 further includes a top plate, and a duct fixing plate 59 disposed inside the top plate and used to form a second air outlet 56. The duct fixing plate 59 defines the second air outlet 56. The top plate and the duct fixing plate 59 together define an air outlet 57 of the air outlet. The air outlet 57 of the air outlet 57 is disposed toward the top of the box body 1.

[0159] Furthermore, the air duct fixing plate 59 has two guide inclined surfaces 591 arranged opposite to each other in the upper and lower directions, and the air duct fixing plate 59 also includes connecting side surfaces respectively connecting the two guide inclined surfaces 591. The two guide inclined surfaces 591 and the two connecting side surfaces jointly define the second air outlet 56. Specifically, the two guide inclined surfaces 591 are respectively set as a lower guide inclined surface and an upper guide inclined surface.

[0160] Specifically, the guiding slope 591 slopes upward from the top of the first air outlet duct 54 to the air outlet 57 of the air duct.

[0161] An air outlet 57 is defined between one end of the two guiding inclined surfaces 591. A connecting air inlet communicating with the first air outlet 54 is defined between the other end of the two guiding inclined surfaces 591. The second fan 43 is disposed at the connecting air inlet.

[0162] When the first fan 41 is running, the air outside the compressor chamber 11 enters through the air inlet driven by the first fan 41, first cools down the compressor 67 of the compressor chamber 11, and then is discharged out of the compressor chamber 11. The air discharged from the compressor chamber 11 flows along the first air outlet 54 and the second air outlet 56 driven by the second fan 43, and the guide slope 591 serves to guide the air to flow toward the air duct outlet 57.

[0163] Furthermore, the cross-sectional area of ​​the air duct outlet 57 is larger than the cross-sectional area of ​​the air inlet, so that the air in the second air duct 56 can be quickly discharged through the air duct outlet 57 .

[0164] Furthermore, the outer wall of the rear back plate 15 is recessed inward to form an air outlet groove, and the air flow channel between the air outlet groove and the air duct plate 58 forms a first air outlet 54 .

[0165] Furthermore, a groove wall of the air outlet groove is a guiding inclined surface 591 extending upward from the air inlet 55 of the air duct to guide the flow of air.

[0166] Compared with the prior art, the refrigerator provided by the present invention includes a first condenser 64 arranged at the bottom of the box body 1 or the back of the box body 1, and a second condenser 65 arranged in the compressor chamber 11, so that the refrigerator includes at least two-stage condensers. The air in the heat dissipation air path passes through the bottom of the box body 1, the compressor chamber 11, the back of the box body 1, and the top of the box body 1 to form a heat dissipation air path with bottom in and top out or top in and bottom out. The air is used multiple times to cool the first condenser 64 and the second condenser 65. The condenser is arranged in multiple stages, thereby improving the condensation effect of the refrigeration system of the refrigerator and improving the utilization rate of the space. The path of the heat dissipation air path for cooling the condenser is reasonably arranged, the heat dissipation efficiency is high, the heat dissipation effect is good, the structure is simple and easy to implement, and it has the advantages of good heat dissipation effect and reduced cost.

[0167] Figures 15 to 18 The refrigerator provided by the second embodiment of the present invention is shown. Figures 15 to 18 Zhongyu Figures 1 to 14 The components with the same reference numerals have similar functions and will not be described in detail here.

[0168] The difference between this embodiment and the first embodiment is that the fixing method of the first fan in this embodiment is different from the fixing method of the first fan in the first embodiment.

[0169] refer to Fig.15 As shown, the refrigerator further comprises a support plate 3. Preferably, the support plate 3 is the support structure of the first embodiment.

[0170] The support plate 3 is located below the first fan 41 and supports the first fan 41. The support plate 3 is used to support and install the first fan 41. The first fan 41 includes a volute and an impeller disposed in the volute.

[0171] Combination Fig.14 As shown, in a first embodiment of the first fan 41, the support plate 3 is provided with a mounting cavity 32 for accommodating the first fan 41. The mounting cavity 32 is an open structure with an opening. Part of the volute is accommodated in the mounting cavity 32, and the other part of the volute extends out of the mounting cavity 32. The volute of the first fan 41 is spaced apart from the inner wall of the mounting cavity 32. The first fan 41 will vibrate when working, and a spacing is preset between the volute and the inner wall of the mounting cavity 32 to buffer the vibration of the volute, so that the support plate 3 has a certain elasticity, which has the advantage of reducing noise.

[0172] The refrigerator provided by the present invention supports and installs the first fan 41 by providing a support plate 3, a part of the volute of the first fan 41 is accommodated in the installation cavity 32, another part of the volute extends out of the installation cavity 32, and the volute is spaced apart from the inner wall of the installation cavity 32. A spacing for buffering the vibration of the volute is preset between the volute and the inner wall of the installation cavity 32, so that the support plate 3 has a certain elasticity to reduce the noise generated by the vibration of the first fan 41. It has the advantages of simple installation, reduced noise and reduced cost.

[0173] Further, the support plate 3 includes a support body 31, a circular arc recessed surface 321 recessed downwardly of the support body 31, and a recessed front wall 322 formed by extending the front edge of the circular arc recessed surface 321 upwardly and connected to the support body 31. The circular arc recessed surface 321 is configured to match the shape of the volute. The circular arc recessed surface 321 and the recessed front wall 322 together define the installation cavity 32.

[0174] Furthermore, an opening of the installation cavity 32 is defined between the rear edge of the arc concave surface 321 and the support body 31. Part of the first fan 41 is exposed to the outside of the installation cavity 32 through the opening. The rear side of the installation cavity 32 is open, which further makes the support plate 3 have a certain elasticity to reduce the noise generated by the vibration of the first fan 41.

[0175] Combination Fig.17 and Fig.18 As shown, the pivot centerline a of the first fan 41 extends from the front to the rear. The pivot centerline a of the first fan 41 is the rotation centerline of the first fan 41.

[0176] refer to Fig.15 As shown, the volute includes a volute front wall 411, a volute rear wall 413, and an arcuate side wall 414 connecting the volute front wall 411 and the volute rear wall 413. The arcuate side wall 414 is a U-shaped arcuate structure with a left-right symmetrical structure. The volute front wall 411 and the volute rear wall 413 are respectively arranged on the front and rear sides of the arcuate side wall 414.

[0177] Preferably, the volute further comprises a volute top wall 416. The volute top wall 416, the volute front wall 411, the volute rear wall 413, and the arc-shaped side wall 414 are jointly arranged to form the volute.

[0178] Combination Fig.15 and Fig.16 The arc-shaped side wall 414 is spaced apart from the circular arc recessed surface 321 , and the volute front wall 411 is spaced apart from the recessed front wall 322 .

[0179] Specifically, a preset distance is provided between the arcuate side wall 414 and the arcuate concave surface 321, and a preset distance is provided between the volute front wall 411 and the concave front wall 322. Parts of the arcuate side wall 414 and the volute rear wall 413 extend out of the installation cavity 32 through the opening of the installation cavity 32. A buffer space for buffering the vibration of the volute is formed between the volute and the support plate 3, so that the support plate 3 has a certain elasticity to reduce the noise generated by the vibration of the first fan 41.

[0180] Furthermore, the first fan 41 also includes a clamping portion formed by the volute and positioned and clamped with the support plate 3. The support plate 3 also includes a positioning portion positioned and installed with the clamping portion. The clamping and disassembling installation method of the positioning portion and the clamping portion simplifies the installation process of the first fan 41 on the support plate 3, and also plays a role in reducing noise.

[0181] refer to Fig.18 As shown, the clamping portion includes a clamping groove 415 formed by the front wall 411 of the volute. The positioning portion includes a positioning block 324 extending from the recessed front wall 322 into the installation cavity 32 and clamped into the clamping groove 415.

[0182] Specifically, a portion of the volute rear wall 413 disposed opposite to the slot 415 extends out of the mounting cavity 32 through the opening of the mounting cavity 32. Thus, when the volute vibrates, the positioning block 324 and the slot 415 can move in a small range in the front-rear direction to alleviate the noise generated by the vibration of the volute. Preferably, a portion of the slot 415 is exposed from the support body 31 to preset a buffer space for buffering the vibration of the volute.

[0183] Furthermore, the clamping portion further includes buckles 418 formed by extending the arc-shaped side wall 414 to both sides. The two buckles 418 are respectively and symmetrically arranged on both sides of the arc-shaped side wall 414.

[0184] Part of the arc-shaped side wall 414 extends out of the mounting cavity 32 through the opening of the mounting cavity 32, and the buckle 418 extends outward from the arc-shaped side wall 414. The buckle 418 extends out of the mounting cavity 32 through the opening and abuts against the lower surface of the support body 31. The top of the buckle 418 abuts against the lower surface of the support body 31 in the up-down direction.

[0185] Furthermore, the buckle 418 has an arc-shaped guide surface installed in the opening and an abutting plane abutting against the lower surface of the support body 31. The buckle 418 includes a buckle body, the arc-shaped guide surface is formed on the side of the buckle body, and the abutting plane is formed on the top of the buckle body.

[0186] During the installation process of the first fan 41, the two buckles 418 extend through the opening to the outside of the installation cavity 32 and abut against the lower surface of the support body 31 to achieve the positioning and installation of the first fan 41 in the left and right and up and down directions. At the same time, the positioning block 324 is inserted into the card slot 415 to achieve the positioning and installation of the first fan 41 in the front and back directions. It has the effect of simple installation and reduced noise. When the first fan 41 is installed, a preset spacing is set between the arc-shaped side wall 414 and the circular arc concave surface 321, and a preset spacing is set between the volute front wall 411 and the concave front wall 322. The support plate 3 has a certain elasticity to reduce the noise generated by the vibration of the first fan 41.

[0187] Furthermore, the first fan 41 is tilted downward from the front to the rear, and the volute is tiltedly installed in the installation cavity 32. The arc recessed surface 321 is tilted downward from the front to the rear, and the arc recessed surface 321 is matched with the arc-shaped side wall 414.

[0188] Furthermore, the rear wall of the first fan 41 is connected obliquely to the back plate 13 of the compressor compartment. The pivot centerline of the first fan 41 forms an angle with the horizontal plane and the pivot centerline is arranged obliquely in the direction from front to back. Such an arrangement can increase the size of the fan when the size of the compressor compartment 11 is constant, so as to improve the heat dissipation and cooling effect of the first fan 41 and make full use of the space of the compressor compartment 11. Moreover, the fan is arranged obliquely, which also increases the size of the first and second air outlets, and at the same time plays a role in guiding the airflow at the first and second air outlets, so as to increase the air flow on the heat dissipation air path of the refrigerator, and improve the heat dissipation efficiency and heat dissipation effect of the refrigerator.

[0189] Combination Fig.18 As shown, further, the angle formed by the pivot center line a of the first fan 41 and the horizontal plane is less than 45°. Preferably, the pivot center line a of the first fan 41 is inclined downward in the direction from front to back, and the angle formed by the pivot center line a of the first fan 41 and the horizontal plane ranges from 5° to 15°.

[0190] Furthermore, the first fan 41 is tilted downward in the direction from front to rear, so that the center of gravity of the first fan 41 is set lower in the direction from front to rear, and the front wall 411 of the volute forms a slot 415, so that the positioning block 324 on the recessed front wall 322 moves backward in the slot 415 along the front-to-back direction, just so that the rear wall 413 of the volute arranged opposite to the slot 415 extends out of the installation cavity 32 through the opening of the installation cavity 32, so that the front wall 411 of the volute and the recessed front wall 322 always maintain a distance from each other, so as to reduce the noise generated by the vibration of the first fan 41.

[0191] Combination Fig.16As shown, the first fan 41 includes a volute and an impeller disposed in the volute. The volute extends backward to be provided with a hook 419 that is engaged with the back plate 13 of the press chamber. Preferably, the volute includes a volute front wall 411, a volute rear wall 413, and an arc-shaped side wall 414 connecting the volute front wall 411 and the volute rear wall 413. The volute rear wall 413 extends backward to form a hook 419.

[0192] The press chamber back plate 13 is provided with a positioning hole 131 extending through the front and rear, and the hook 419 protrudes into the positioning hole 131 and engages with the press chamber back plate 13. Preferably, the hook 419 includes a hook body formed by extending backward from the volute rear wall 413 and a hook portion formed by bending the hook body downward.

[0193] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A refrigerator, comprising a box body, wherein a storage space and a press chamber are defined in the box body, wherein the press chamber is located at the bottom of the box body, and wherein a compressor and a first fan are provided in the press chamber, wherein: The bottom of the box body is provided with a first air outlet connected to the inside and outside of the compressor compartment, and the top of the box body is provided with a second air outlet connected to the inside and outside of the compressor compartment, one of the first air outlet and the second air outlet is set as an air inlet, and the other is set as an air outlet; Wherein, an air guide groove connecting the first air outlet and the second air outlet is formed on the back of the box.

2. The refrigerator according to claim 1, characterized in that: The box body includes a press chamber back plate and a rear back plate extending upward from the press chamber back plate; The air guide groove is formed at the junction of the rear back plate and the press chamber back plate; Wherein, the air guide groove is extended from the inside of the press chamber to the outside of the press chamber.

3. The refrigerator according to claim 2, characterized in that: The aforementioned air inlet comprises a bottom air inlet arranged at the bottom of the box body and communicating with the inside and outside of the press chamber, and the aforementioned air outlet comprises a top air outlet arranged at the top of the box body; The air guide groove is configured as an air outlet groove formed by inward depression of the lower portion of the rear back plate.

4. The refrigerator according to claim 3, characterized in that: The back plate includes a vertical groove wall connected to the compressor chamber and an inclined air guide wall formed by extending the vertical groove wall upward, and the vertical groove wall and the inclined air guide wall are used to form the air outlet groove.

5. The refrigerator according to claim 2, characterized in that: The top of the first fan extends into the air guide groove; The top of the first fan is provided with a first opening which is opened upward, and the first opening extends out of an air guide groove to connect the inside and outside of the compressor compartment; The first fan further includes a second opening disposed in the compressor compartment; Wherein, one of the first opening and the second opening is set as an air intake port, and the other is set as an air exhaust port.

6. The refrigerator according to claim 5, characterized in that: The rear wall of the fan is obliquely connected to the back plate of the compressor chamber; Wherein, the pivot center line of the first fan forms an angle with the horizontal plane and the pivot center line is inclined in a direction from front to rear.

7. The refrigerator according to claim 2, characterized in that: The aforementioned air inlet comprises a top air inlet arranged at the top of the box body, and the aforementioned air outlet comprises a bottom air outlet arranged at the bottom of the box body and communicating with the inside and outside of the press chamber; The air guide groove is configured as an air inlet groove formed by inward depression of the lower portion of the rear back plate.

8. The refrigerator according to claim 2, characterized in that: The refrigerator further comprises an air duct groove arranged on the outer wall of the back plate; The air duct groove extends upward from the air guiding groove to connect the air guiding groove with the second air outlet.

9. The refrigerator according to claim 8, characterized in that: The refrigerator further comprises a plurality of vertical air guide plates arranged on the back plate and spaced apart in the left-right direction; Wherein, the plurality of vertical air guide plates separate the air duct groove into a plurality of sub-air duct grooves.

10. The refrigerator according to claim 9, characterized in that: The vertical air guide plate is arranged on the outer wall of the back plate; The refrigerator further comprises a first condenser arranged on the inner wall of the back plate, and at least a part of the pipeline of the first condenser is extended in the same direction as the sub-air duct groove.

11. The refrigerator according to claim 2, characterized in that: The box body also includes a bottom plate for defining the press chamber, a press chamber support plate extending upward from the front side of the bottom plate and connected to the press chamber back plate, the bottom plate includes a horizontal bottom plate vertically connected to the press chamber back plate, and a vertical bottom plate formed by bending the horizontal bottom plate upward and arranged adjacent to the press chamber support plate; Wherein, the first air outlet is arranged on the horizontal bottom plate and / or the vertical bottom plate; The first air outlet is provided with a plurality of through holes at intervals along the left-right direction of the bottom plate.

12. The refrigerator according to claim 11, characterized in that: The compressor and the first fan are arranged at intervals along the left-right direction of the horizontal bottom plate; At least a portion of the through hole is disposed in front of the compressor.

13. The refrigerator according to claim 1, characterized in that: The first fan is configured as a centrifugal fan.

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