Air duct structure of refrigerator

Abstract

The air duct structure of the refrigerator comprises a refrigerator body, an air cooling assembly, a storage cavity and a refrigeration cavity are arranged in the refrigerator body, and an air inlet channel and an air return channel which enable the storage cavity and the refrigeration cavity to be communicated are further arranged between the storage cavity and the refrigeration cavity. The air cooling assembly comprises an evaporator arranged in the refrigeration cavity and a first fan promoting cold air to circulate between the storage cavity and the refrigeration cavity, communicating ports of the air inlet channel and the refrigeration cavity and communicating ports of the air return channel and the refrigeration cavity are formed in the same side of the refrigeration cavity, and the first fan and / or the evaporator are / is obliquely arranged. The ends, close to the communicating opening, of the first fan and the evaporator are close to each other, the unnecessary cavity or pipeline length in the refrigerator is reduced, and the limited space in the refrigerator is better utilized. And meanwhile, cold air blown through the evaporator can be more uniformly dispersed in the whole storage cavity, so that the temperature difference is reduced, and the consistency of a food storage environment is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to refrigerator technical field especially relates to a refrigerator air duct structure. BACKGROUND

[0002] With the continuous improvement of people's living standards, the requirement of refrigerator preservation performance is also higher and higher. In the traditional refrigerator design, the direct cooling type refrigeration mode is usually adopted, that is, the temperature is reduced by heat exchange between the evaporator and the air in the refrigeration chamber. However, this method has the problem of uneven temperature distribution. The temperature is low near the evaporator, and the temperature is high far from the evaporator, resulting in poor food preservation effect.

[0003] In recent years, in order to solve the above problems, the air-cooled refrigerator gradually becomes the mainstream. The air-cooled refrigerator forces the cold air around the evaporator to circulate in the whole storage cavity through the fan, so as to achieve more uniform temperature distribution. However, in the actual application process, it is found that even if the air-cooled technology is adopted, if the air duct structure is not reasonably designed, it may still cause uneven distribution of cold quantity, increase of energy consumption and other problems. For example, when the inlet air passage and the return air passage are not properly arranged or the relative relationship between them and the evaporator is not reasonable, the cold air flow efficiency will be low, which will affect the refrigeration effect and increase the energy consumption.

[0004] In addition, although some existing air-cooled refrigerators can better realize the cold quantity transmission, the internal space utilization rate is low, because enough space needs to be reserved for the complex air duct system, which limits the effective utilization of cavity volume. Therefore, how to optimize the internal structure of the refrigerator, improve the space utilization rate under the premise of ensuring good refrigeration performance, and then reduce the volume of the refrigerator, has become one of the current research focuses.

[0005] The utility model is made based on the above situation. CONTENT OF UTILITY MODEL

[0006] The utility model overcomes the defects of prior art, and provides an air duct structure of refrigerator, which has uniform refrigeration temperature distribution, high internal space utilization rate of refrigerator and small overall volume of refrigerator.

[0007] The utility model is implemented by the following technical solutions:

[0008] The application discloses a wind channel structure of a refrigerator, which comprises a refrigerator body, wherein an air cooling assembly, a storage cavity and a refrigeration cavity are arranged in the refrigerator body, an air inlet channel and an air return channel for connecting the storage cavity and the refrigeration cavity are arranged between the storage cavity and the refrigeration cavity, the air cooling assembly comprises an evaporator arranged in the refrigeration cavity and a first fan for promoting circulation of cold air between the storage cavity and the refrigeration cavity, the air inlet channel and the air return channel are arranged on the same side of the refrigeration cavity, and the first fan and the evaporator are arranged in an inclined mode, and the ends of the first fan and the evaporator close to the connecting ports are arranged close to each other.

[0009] The application discloses a wind channel structure of a refrigerator, which comprises a refrigerator body, wherein an air cooling assembly, a storage cavity and a refrigeration cavity are arranged in the refrigerator body, an air inlet channel and an air return channel for connecting the storage cavity and the refrigeration cavity are arranged between the storage cavity and the refrigeration cavity, the air cooling assembly comprises an evaporator arranged in the refrigeration cavity and a first fan for promoting circulation of cold air between the storage cavity and the refrigeration cavity, the air inlet channel and the air return channel are arranged on the same side of the refrigeration cavity, and the first fan and the evaporator are arranged in an inclined mode, and the ends of the first fan and the evaporator close to the connecting ports are arranged close to each other.

[0010] The application discloses a wind channel structure of a refrigerator, which comprises a refrigerator body, wherein an air cooling assembly, a storage cavity and a refrigeration cavity are arranged in the refrigerator body, an air inlet channel and an air return channel for connecting the storage cavity and the refrigeration cavity are arranged between the storage cavity and the refrigeration cavity, the air cooling assembly comprises an evaporator arranged in the refrigeration cavity and a first fan for promoting circulation of cold air between the storage cavity and the refrigeration cavity, the air inlet channel and the air return channel are arranged on the same side of the refrigeration cavity, and the first fan and the evaporator are arranged in an inclined mode, and the ends of the first fan and the evaporator close to the connecting ports are arranged close to each other.

[0011] The application discloses a wind channel structure of a refrigerator, which comprises a refrigerator body, wherein an air cooling assembly, a storage cavity and a refrigeration cavity are arranged in the refrigerator body, an air inlet channel and an air return channel for connecting the storage cavity and the refrigeration cavity are arranged between the storage cavity and the refrigeration cavity, the air cooling assembly comprises an evaporator arranged in the refrigeration cavity and a first fan for promoting circulation of cold air between the storage cavity and the refrigeration cavity, the air inlet channel and the air return channel are arranged on the same side of the refrigeration cavity, and the first fan and the evaporator are arranged in an inclined mode, and the ends of the first fan and the evaporator close to the connecting ports are arranged close to each other.

[0012] The application discloses a wind channel structure of a refrigerator, which comprises a refrigerator body, wherein an air cooling assembly, a storage cavity and a refrigeration cavity are arranged in the refrigerator body, an air inlet channel and an air return channel for connecting the storage cavity and the refrigeration cavity are arranged between the storage cavity and the refrigeration cavity, the air cooling assembly comprises an evaporator arranged in the refrigeration cavity and a first fan for promoting circulation of cold air between the storage cavity and the refrigeration cavity, the air inlet channel and the air return channel are arranged on the same side of the refrigeration cavity, and the first fan and the evaporator are arranged in an inclined mode, and the ends of the first fan and the evaporator close to the connecting ports are arranged close to each other.

[0013] The application discloses a wind channel structure of a refrigerator, which comprises a refrigerator body, wherein an air cooling assembly, a storage cavity and a refrigeration cavity are arranged in the refrigerator body, an air inlet channel and an air return channel for connecting the storage cavity and the refrigeration cavity are arranged between the storage cavity and the refrigeration cavity, the air cooling assembly comprises an evaporator arranged in the refrigeration cavity and a first fan for promoting circulation of cold air between the storage cavity and the refrigeration cavity, the air inlet channel and the air return channel are arranged on the same side of the refrigeration cavity, and the first fan and the evaporator are arranged in an inclined mode, and the ends of the first fan and the evaporator close to the connecting ports are arranged close to each other.

[0014] The air duct structure of the refrigerator as described above, the first cabinet is provided with an inner container, the containing cavity is arranged in the inner container, and the air distribution cover is further connected to the inner container, the air distribution cavity is surrounded by the inner container wall and the air distribution cover, the partition plate, the second air inlet and the second air return are arranged on the air distribution cover, and the insertion port is arranged on the first cabinet and the inner container.

[0015] The air duct structure of the refrigerator as described above, the first cabinet and the second cabinet are provided with a sealing ring for sealing the gap between the insertion port and the second cabinet after the air pipe is inserted into the air distribution cavity.

[0016] The air duct structure of the refrigerator as described above, the first cabinet and the second cabinet are provided with a detachable connection structure for detachably connecting the first cabinet to the second cabinet, and the detachable connection structure comprises a lock structure, a strap structure, a zipper structure or a magnet structure.

[0017] Compared with the prior art, the air duct structure has the following advantages:

[0018] 1. The evaporator is arranged in the refrigeration cavity, the air inlet channel and the air return channel are arranged on the same side of the refrigeration cavity, and the first fan and the evaporator are arranged close to each other at the end close to the communication port, so that the length of the unnecessary cavity or pipeline in the refrigerator is reduced, the limited space in the refrigerator is better utilized, the cold air blown from the evaporator is more evenly distributed in the storage cavity, the temperature difference is reduced, the consistency of the food storage environment is ensured, the freshness of the food is better maintained, the effective circulation of the cold and hot air is promoted, the time required to reach the set temperature is shortened, the energy consumption required to maintain a specific low temperature state is reduced, and good energy-saving effect is achieved.

[0019] 2. The air inlet channel and the air return channel are arranged in the air pipe, compared with the traditional pipeline arrangement, the installation space can be effectively saved, and the structure can be better used in limited space. The integrated design reduces the number of required parts, simplifies the installation process, and is more convenient for maintenance in the later period, reduces the maintenance cost. The side wall of the air distribution cavity is provided with a partition plate which can cooperate with the outer wall of the air pipe to divide the air distribution cavity into a second air inlet cavity and a second air return cavity, so that the direction of the cold air can be more accurately controlled, the cold air can flow along the predetermined path, unnecessary mixing is avoided, the efficiency of the ventilation system is improved, and the wind noise is reduced.

[0020] 3. The first cabinet and the second cabinet are provided with a sealing ring for sealing the gap between the insertion port and the second cabinet after the air pipe is inserted into the air distribution cavity, so as to reduce the leakage of cold air and have better refrigeration effect. BRIEF DESCRIPTION OF DRAWINGS

[0021] The specific embodiments of the utility model will be described further in combination with the drawings, wherein:

[0022] Figure 1 is the sectional view of the utility model Figure One ;

[0023] Figure 2 is the sectional view of the utility model Figure Two ;

[0024] Figure 3 is the structural diagram of the mounting bracket, the first fan and the evaporator in the utility model;

[0025] Figure 4 is the exploded view of the utility model;

[0026] Figure 5 is the exploded view of the first box body in the utility model;

[0027] Figure 6 is the exploded view of the second box body in the utility model. DETAILED DESCRIPTION

[0028] The utility model will be described further in combination with the drawings:

[0029] As Figures 1 to 6 indicated, a kind of air duct structure of refrigerator, including refrigerator main body 1, the refrigerator main body 1 is equipped with air cooling component, storage cavity 11 and refrigeration cavity 12, the storage cavity 11 and refrigeration cavity 12 between still be equipped with the air inlet passage 13 and return air passage 14 for making storage cavity 11 and refrigeration cavity 12 communicate, the air cooling component includes evaporator 21 being located in refrigeration cavity 12 and the first fan 22 for promoting cold air circulation between storage cavity 11 and refrigeration cavity 12, the air inlet passage 13 and return air passage 14 and the communicating port of refrigeration cavity 12 are all located in the same side of refrigeration cavity 12, the first fan 22 and / or evaporator 21 are inclined to be arranged, and the end of first fan 22 and evaporator 21 close to communicating port is arranged to each other.

[0030] The evaporator 21 is arranged inside the refrigeration cavity 12, the air inlet channel 13 and the air return channel 14 are arranged on the same side of the refrigeration cavity 12, and the first fan 22 and the evaporator 21 are arranged close to the end of the communication port of the refrigeration cavity 12. Such an arrangement helps to reduce the length of the unnecessary cavity or pipeline inside the refrigerator, better utilize the limited space inside the refrigerator, and make the cold air blown from the evaporator 21 more evenly distributed in the whole storage cavity 11, thereby reducing the temperature difference and ensuring the consistency of the food storage environment, so that the food can better maintain freshness. Due to the air duct structure promoting the effective circulation of cold and hot air, the time required to reach the set temperature is shortened, and the energy consumption required to maintain a certain low temperature state is also reduced, thereby having a good energy-saving effect.

[0031] Specifically, the air inlet channel 13 and the air return channel 14 are arranged above the refrigeration cavity 12, and the upper ends of the first fan 22 and the evaporator 21 are arranged close to each other. The included angle between the first fan 22 and the evaporator 21 is a right angle or an acute angle, so that the air discharged from the first fan 22 can flow more directly to the evaporator 21, reducing the resistance and turbulence in the air flow, and more conducive to the circulation of cold air. Compared with the acute angle arrangement, the right angle or obtuse angle can make the cold air impact the surface of the evaporator 21 with a larger coverage area, increase the contact time and area between the cold air and the evaporator 21, thereby enhancing the heat exchange effect, and at the same time can effectively avoid that part of the cooled air is not fully heated before being sucked into the fan again, ensuring the effective circulation of cold air.

[0032] Further, the refrigeration cavity 12 is provided with a mounting frame 3, the mounting frame 3 includes a first mounting plate 31 for mounting the first fan 22 and a second mounting plate 32 for mounting the evaporator 21, the included angle b between the first mounting plate 31 and the second mounting plate 32 is a right angle or an acute angle, and the first mounting plate 31 and the second mounting plate 32 divide the refrigeration cavity 12 into a first air return cavity 121, a transition cavity 122 and a first air inlet cavity 123. The first air return cavity 121 is in communication with the air return channel 14, the first air inlet cavity 123 is in communication with the air inlet channel 13, the first mounting plate 31 is provided with a first through hole 311 for the air blown out by the first fan 22 to enter the transition cavity 122, and the second mounting plate 32 is provided with a second through hole 321 for the air in the transition cavity 122 to blow towards the evaporator 21. The refrigeration cavity 12 is divided by the first mounting plate 31 and the second mounting plate 32, thereby limiting the formation of local vortex of air in the refrigeration cavity 12.

[0033] In some embodiments, the refrigerator body 1 further comprises a containing cavity 15, and the air-cooling assembly further comprises a compressor 23, a controller 24, a condenser 25, a second fan 26 and a battery 27 arranged in the containing cavity 15. The refrigerator body 1 further comprises a first air inlet 28 and a first air outlet 29 for connecting the containing cavity 15 with the outside. The refrigerator body 1 further comprises a charging jack 20 for charging the battery 27, and the controller 24 further comprises a button for adjusting the refrigeration temperature and shutting down the air-cooling assembly.

[0034] In some embodiments, the refrigerator body 1 comprises a first cabinet 16 and a second cabinet 17 detachably connected with the first cabinet 16. The storage cavity 11 is arranged in the first cabinet 16, and the first cabinet 16 further comprises a cabinet door 18 for opening the storage cavity 11. The refrigeration cavity 12 and the containing cavity 15 are arranged in the second cabinet 17. The upper side of the first cabinet 16 is provided with a placing opening communicating with the storage cavity 11. One side of the cabinet door 18 is hingedly connected to the upper side of the first cabinet 16, and the other side of the cabinet door 18 is provided with a locking structure, a strap structure, a zipper structure or a magnet structure for locking the cabinet door 18 to the first cabinet 16.

[0035] Further, the first cabinet 16 is provided with an air distribution cavity and a plug-in opening 161 communicating with the air distribution cavity. The second cabinet 17 is further provided with an air duct 4 capable of being plugged into the air distribution cavity. The air inlet channel 13 and the air return channel 14 are arranged in the air duct 4. The side wall of the air distribution cavity is provided with a partition plate 51 capable of cooperating with the outer wall of the air duct 4 to divide the air distribution cavity into a second air inlet cavity 61 and a second air return cavity 62. The air duct 4 is provided with a plug-in slot for the partition plate 51, so that the partition plate 51 can better cooperate with the air duct 4, thereby improving the stability of the connection. The side wall of the second air inlet cavity 61 is provided with a second air inlet 52 for communicating with the storage cavity 11. The side wall of the second air return cavity 62 is provided with a second air return 53 for communicating with the storage cavity 11. The first cabinet 16 is further rotatably connected with a baffle 7 capable of being pushed open by the air duct 4. The baffle 7 and the first cabinet 16 are further provided with a reset element 71 for resetting the baffle 7 to block the plug-in opening 161 after the air duct 4 is pulled out. After the first cabinet 16 is detached, the baffle 7 can automatically block the plug-in opening 161, thereby limiting the cold air in the storage cavity 11 from flowing out and maintaining the heat preservation effect for a certain period of time. Meanwhile, the baffle 7 can also limit external objects from entering the first cabinet 16 through the plug-in opening 161. The reset element 71 can be a torsional spring or other elastic member.

[0036] Further, the first box body 16 is provided with an inner container 162, the accommodating cavity 15 is arranged in the inner container 162, and a distribution cover 163 is further connected to the inner container 162. The distribution cavity is surrounded by the wall of the inner container 162 and the distribution cover 163. The partition plate 51, the second air inlet 52 and the second air return outlet 53 are all arranged on the distribution cover 163. The first box body 16 and the inner container 162 are both provided with an insertion opening 161.

[0037] The first box body 16 and the second box body 17 are provided with a sealing ring 8 which seals the gap between the insertion opening 161 and the second box body 17 after the air duct 4 is inserted into the distribution cavity, so as to reduce the leakage of cold air and thus have a better refrigeration effect.

[0038] In an embodiment, the first box body 16 and the second box body 17 are provided with a detachable connection structure 9 which allows the first box body 16 to be detachably connected to the second box body 17. The detachable connection structure 9 includes a lock structure, a strap structure, a zipper structure or a magnet structure.

[0039] Further, the box door 18 and / or the first box body 16 is provided with a handle 181 or a belt. Thus, the first box body 16 is convenient to carry.

Claims

1. A duct structure of a refrigerator, characterized by: The refrigerator body (1) is provided with a wind cooling assembly, a storage cavity (11) and a refrigeration cavity (12), and the storage cavity (11) and the refrigeration cavity (12) are also provided with an air inlet channel (13) and an air return channel (14) for connecting the storage cavity (11) and the refrigeration cavity (12), the wind cooling assembly comprises an evaporator (21) arranged in the refrigeration cavity (12) and a first fan (22) for promoting the circulation of cold air between the storage cavity (11) and the refrigeration cavity (12), the communication ports of the air inlet channel (13) and the air return channel (14) are arranged on the same side of the refrigeration cavity (12), and the first fan (22) and / or the evaporator (21) are arranged obliquely, and the ends of the first fan (22) and the evaporator (21) close to the communication ports are arranged close to each other.

2. The air duct structure of a refrigerator according to claim 1, wherein: The refrigeration cavity (12) is provided with a mounting frame (3), the mounting frame (3) comprises a first mounting plate (31) for mounting the first fan (22) and a second mounting plate (32) for mounting the evaporator (21), the included angle b between the first mounting plate (31) and the second mounting plate (32) is a right angle or an acute angle, and the first mounting plate (31) and the second mounting plate (32) divide the refrigeration cavity (12) into a first air return cavity (121), a transition cavity (122) and a first air inlet cavity (123), the first air return cavity (121) is communicated with the air return channel (14), the first air inlet cavity (123) is communicated with the air inlet channel (13), the first mounting plate (31) is provided with a first through hole (311) for the wind blown by the first fan (22) to enter the transition cavity (122), and the second mounting plate (32) is provided with a second through hole (321) for the wind in the transition cavity (122) to blow to the evaporator (21).

3. The air duct structure of a refrigerator according to claim 1 or 2, wherein: The refrigerator body (1) is also provided with a containing cavity (15), and the wind cooling assembly further comprises a compressor (23), a controller (24), a condenser (25), a second fan (26) and a battery (27) arranged in the containing cavity (15), and the refrigerator body (1) is also provided with a first air inlet (28) and a first air outlet (29) for connecting the containing cavity (15) with the outside.

4. The air duct structure of a refrigerator according to claim 3, wherein: The refrigerator body (1) comprises a first cabinet (16) and a second cabinet (17) detachably connected with the first cabinet (16), the storage cavity (11) is arranged in the first cabinet (16), and the first cabinet (16) is also provided with a cabinet door (18) for opening the storage cavity (11), and the refrigeration cavity (12) and the containing cavity (15) are arranged in the second cabinet (17).

5. The air duct structure of a refrigerator according to claim 4, wherein: The first box (16) is provided with an air distribution cavity and an insertion port (161) communicated with the air distribution cavity, the second box (17) is further provided with an air pipe (4) capable of being inserted into the air distribution cavity, the air inlet channel (13) and the air return channel (14) are arranged in the air pipe (4), the side wall of the air distribution cavity is provided with a partition plate (51) capable of cooperating with the outer wall of the air pipe (4) to divide the air distribution cavity into a second air inlet cavity (61) and a second air return cavity (62), the side wall of the second air inlet cavity (61) is provided with a second air inlet (52) communicated with the storage cavity (11), and the side wall of the second air return cavity (62) is provided with a second air return (53) communicated with the storage cavity (11).

6. The air duct structure of a refrigerator according to claim 5, wherein: The first box (16) is further rotatably connected with a baffle (7) capable of being pushed open by the air pipe (4), and the baffle (7) and the first box (16) are further provided with a reset element (71) capable of resetting the baffle (7) to block the insertion port (161) after the air pipe (4) is pulled out.

7. The air duct structure of a refrigerator according to claim 6, wherein: The first box (16) is provided with an inner container (162), the containing cavity (15) is arranged in the inner container (162), and the inner container (162) is further connected with an air distribution cover (163), the air distribution cavity is surrounded by the wall of the inner container (162) and the air distribution cover (163), the partition plate (51), the second air inlet (52) and the second air return (53) are arranged on the air distribution cover (163), and the first box (16) and the inner container (162) are both provided with the insertion port (161).

8. The air duct structure of a refrigerator according to claim 7, wherein: The first box (16) and the second box (17) are provided with a sealing ring (8) capable of sealing the gap between the insertion port (161) and the second box (17) after the air pipe (4) is inserted into the air distribution cavity.

9. The air duct structure of a refrigerator according to claim 4, wherein: The first box (16) and the second box (17) are provided with a detachable connection structure (9) capable of detachably connecting the first box (16) to the second box (17), and the detachable connection structure (9) comprises a lock structure, a binding structure, a zipper structure or a magnet structure.

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