Refrigeration equipment

Abstract

The utility model discloses refrigeration equipment. The refrigeration equipment comprises a case and at least one drawer, the drawer is arranged in the accommodating cavity, the outer wall of the drawer is separated from the inner wall of the case to form an air duct, a plurality of ventilation holes are formed in the side wall of the drawer, and each ventilation hole is communicated with the air duct; the refrigeration equipment further comprises at least one heat exchange structure which is arranged in the air duct and provided with an air inlet and an air outlet which communicate with the air duct. When the heat exchange structure works, air flow in the drawer flows into the heat exchange structure through the ventilation hole and the air inlet for heat exchange, and the air flow after heat exchange flows into the drawer through the air outlet and the ventilation hole so as to adjust the temperature of an object in the drawer. According to the refrigeration equipment, the outer wall of the drawer is separated from the inner wall of the case to form the air duct, so that the temperature of an object in the drawer is adjusted, the space in the case is fully utilized, the structural space of the air duct is reduced, the plot ratio of the refrigeration equipment is increased, and the cost of the refrigeration equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, in particular to a refrigeration device. Background Art

[0002] In the related art, in order to increase the volumetric ratio of the refrigerator, solutions such as reducing the height of the compressor compartment or reducing the thickness of the foam layer are often adopted. However, reducing the height of the compressor compartment can easily make the refrigerator's refrigeration effect worse, and reducing the thickness of the foam layer can directly lead to worse insulation effect of the box. At the same time, adding VIP panels (vacuum insulation panels) or using more efficient compressors will cause the cost to increase exponentially. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a refrigeration device that can adjust the temperature of objects in a drawer while making full use of the space in the case and reducing the structural space of the air duct, which is conducive to increasing the volume ratio of the refrigeration device and reducing the cost of the refrigeration device.

[0004] According to the first aspect of the utility model, the refrigeration device comprises: a chassis, the chassis comprises a box body and a box door, one side of the box body in the thickness direction is open, the box door is arranged on the open side of the box body, and the box door and the box body jointly define a accommodating cavity; at least one drawer, the drawer is arranged in the accommodating cavity, the outer wall of the drawer is spaced apart from the inner wall of the chassis to form an air duct, and a plurality of ventilation holes are formed on the side wall of the drawer, each of the ventilation holes is connected to the air duct; the refrigeration device also comprises: at least one heat exchange structure, the heat exchange structure is arranged in the air duct, the heat exchange structure has an air inlet and an air outlet connected to the air duct; wherein, when the heat exchange structure is working, the airflow in the drawer flows into the heat exchange structure through the ventilation holes and the air inlet for heat exchange, and the airflow after heat exchange flows into the drawer through the air outlet and the ventilation holes to adjust the temperature of the object in the drawer.

[0005] According to the refrigeration device of the embodiment of the utility model, the outer wall of the drawer is separated from the inner wall of the chassis to form an air duct, and the air duct is connected to the ventilation holes on the side walls of the drawer, so as to adjust the temperature of the objects in the drawer while making full use of the space in the chassis, reducing the structural space of the air duct, which is beneficial to increase the volume ratio of the refrigeration equipment and reduce the cost of the refrigeration equipment.

[0006] In some examples of the present invention, the heat exchange structure is disposed at a corner of the chassis.

[0007] In some examples of the present utility model, the heat exchange structure includes: an air duct member that extends along the height direction of the box body, the air duct member having a supply air duct and the air inlet and the air outlet that communicate with the supply air duct; a fan that is provided in the supply air duct and is located between the air inlet and the air outlet; an evaporator that is provided on a side of the fan adjacent to the air outlet; a semiconductor heat exchanger that is provided on a side of the evaporator adjacent to the fan, and the semiconductor heat exchanger is connected to the evaporator through a heat exchange block.

[0008] In some examples of the present utility model, the evaporator includes a plurality of heat exchange fins and heat exchange tubes, the heat exchange tubes extend along the height direction of the box body, and a plurality of the heat exchange fins are sleeved on the heat exchange tubes at intervals; the heat exchange block includes a heat exchange rod and a heat exchange plate that are connected to each other, two ends of the heat exchange rod are respectively connected to the semiconductor heat exchanger and the heat exchange plate, and the heat exchange plate is sleeved on the heat exchange tube.

[0009] In some examples of the present utility model, the heat exchange structure further includes: a first air plate that is pivotally provided at the air inlet; a second air plate that is pivotally provided at the air outlet.

[0010] In some examples of the present utility model, the air duct member includes: a first air duct section that extends along the width direction of the box body, the first air duct section is provided with the evaporator therein, and the first air duct section forms the air outlet on one side in the width direction of the box body; a second air duct section that is connected to the other side of the first air duct section in the width direction of the box body, the second air duct section extends along the thickness direction of the box body, the other side of the second air duct section away from the first air duct section forms the air inlet, and the fan is located at the connection of the second air duct section and the first air duct section; wherein, two ends of the air inlet in the height direction of the box body are respectively a first end and a second end, two ends of the air outlet in the height direction of the box body are respectively a third end and a fourth end, the first end is located between the third end and the fourth end in the height direction of the box body, and the fourth end is located between the first end and the second end in the height direction of the box body.

[0011] In some examples of the present utility model, a first guiding plate is provided in the first air duct section. One end of the first guiding plate is connected to the fourth end of the air outlet, and the other end of the first guiding plate extends obliquely towards the second end of the air inlet. A second guiding plate is provided in the second air duct section. One end of the second guiding plate is connected to the first end of the air inlet, and the other end of the second guiding plate extends obliquely towards the third end of the air outlet. Wherein, the blower, the evaporator and the semiconductor heat exchanger are arranged between the first guiding plate and the second guiding plate.

[0012] In some examples of the present utility model, in the height direction of the cabinet, the first end of the air inlet is located in the middle of the drawer; and / or in the height direction of the cabinet, the fourth end of the air outlet is located in the middle of the drawer.

[0013] In some examples of the present utility model, the refrigeration device further includes: at least one partition plate, which is arranged in the accommodation cavity and divides the accommodation cavity into at least two sub-cavities arranged along the height direction of the cabinet, and two adjacent sub-cavities are not communicated with each other; the drawers and the heat exchange structures are all multiple, and the multiple drawers correspond to the multiple heat exchange structures one by one. Each drawer is arranged in the corresponding sub-cavity, and each heat exchange structure is arranged in the air duct defined by the chassis and the corresponding drawer.

[0014] The refrigeration device according to the second aspect of the present utility model includes: a chassis, the chassis includes a cabinet and a cabinet door, one side in the thickness direction of the cabinet is open, the cabinet door is arranged on the open side of the cabinet, and the cabinet door and the cabinet together define an accommodation cavity; at least one drawer, the drawer is arranged in the accommodation cavity, the outer wall of the drawer is spaced from the inner wall of the chassis to form an air duct, and a plurality of ventilation holes are formed on the side wall of the drawer, and each ventilation hole communicates with the air duct; the refrigeration device further includes: at least one heat exchange structure, the heat exchange structure is arranged in the air duct, and the heat exchange structure has an air inlet and an air outlet communicating with the air duct; a water baffle, the water baffle is arranged in the heat exchange structure, and the water baffle is located at the bottom of the heat exchange structure; a drain pipe, one end of the drain pipe extends into the heat exchange structure, and the other end of the drain pipe extends out of the chassis; wherein, when the heat exchange structure works, the air flow in the drawer flows through the ventilation holes and the air inlet into the heat exchange structure for heat exchange, and the heat-exchanged air flow flows through the air outlet and the ventilation holes into the drawer to adjust the temperature of the objects in the drawer.

[0015] The additional aspects and advantages of the present utility model will be partly given in the following description, partly become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0016] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, where:

[0017] Figure 1 is a schematic diagram of a refrigeration device according to an embodiment of the present utility model, where the door is not shown;

[0018] Figure 2 is a schematic diagram of a drawer and a heat exchange structure of a refrigeration device according to an embodiment of the present utility model;

[0019] Figure 3 is a partial schematic diagram of a refrigeration device according to an embodiment of the present utility model;

[0020] Figure 4 is Figure 3 an enlarged view of part A circled in;

[0021] Figure 5 is a perspective view of an air duct member of a refrigeration device according to an embodiment of the present utility model;

[0022] Figure 6 is a partial schematic diagram of an air duct member of a refrigeration device according to an embodiment of the present utility model;

[0023] Figure 7 is a perspective view of an air duct member of a refrigeration device according to an embodiment of the present utility model, where both the first air plate and the second air plate are in an open state;

[0024] Figure 8 is a perspective view of an air duct member of a refrigeration device according to an embodiment of the present utility model, where both the first air plate and the second air plate are in a closed state;

[0025] Figure 9 is Figure 8 an enlarged view of part B circled in;

[0026] Figure 10 is an exploded view of a heat exchange structure of a refrigeration device according to an embodiment of the present utility model;

[0027] Figure 11 is a schematic diagram of an evaporator of a refrigeration device according to an embodiment of the present utility model;

[0028] Figure 12 is Figure 11 an enlarged view of part C circled in.

[0029] Reference Numerals:

[0030] 100: Refrigeration device;

[0031] 1: Chassis; 11: Cabinet; 12: Door; 13: Accommodation cavity; 131: Sub-cavity; 2: Drawer; 21: Air duct; 22: Ventilation hole; 3: Heat exchange structure; 31: Air inlet; 311: First end; 312: Second end; 32: Air outlet; 321: Third end; 322: Fourth end; 33: Air duct member; 331: Air supply duct; 332: First air duct section; 333: Second air duct section; 334: First guide plate; 335: Second guide plate; 34: Fan; 35: Evaporator; 351: Heat exchange fins; 352: Heat exchange tubes; 36: Semiconductor heat exchanger; 37: Heat exchange block; 371: Heat exchange rod; 372: Heat exchange plate; 38: First air plate; 39: Second air plate; 4: Partition; 5: Water baffle; 6: Drain pipe. Detailed implementation mode

[0032] The following refers to Figures 1 - 12 Describe the refrigeration device 100 according to the embodiment of the first aspect of the present invention.

[0033] The refrigeration device 100 according to the embodiment of the first aspect of the present invention includes a chassis 1 and at least one drawer 2.

[0034] Specifically, the chassis 1 includes a cabinet 11 and a door 12. One side of the cabinet 11 in the thickness direction (for example, Figure 1 the front-back direction in ) is open, the door 12 is arranged on the open side of the cabinet 11, and the door 12 and the cabinet 11 jointly define an accommodation cavity 13. The drawer 2 is arranged in the accommodation cavity 13. The outer wall of the drawer 2 is spaced apart from the inner wall of the chassis 1 to form an air duct 21, and a plurality of ventilation holes 22 are formed on the side wall of the drawer 2, and each ventilation hole 22 communicates with the air duct 21. In the description of the present invention, the meaning of "a plurality of" is two or more.

[0035] The refrigeration device 100 further includes at least one heat exchange structure 3. The heat exchange structure 3 is arranged in the air duct 21, and the heat exchange structure 3 has an air inlet 31 and an air outlet 32 communicating with the air duct 21. Among them, when the heat exchange structure 3 works, the air flow in the drawer 2 flows through the ventilation holes 22 and the air inlet 31 into the heat exchange structure 3 for heat exchange, and the heat-exchanged air flow flows through the air outlet 32 and the ventilation holes 22 into the drawer 2 to adjust the temperature of the objects in the drawer 2.

[0036] For example, in Figures 1 - 4In the example, the chassis 1 can achieve the sealing design of the accommodation cavity 13 through the cooperation of the box body 11 and the box door 12, avoiding the interference of heat exchange with the external environment on the temperature regulation in the accommodation cavity 13, which is beneficial to the temperature regulation of the objects in the accommodation cavity 13. The outer wall of the drawer 2 arranged in the accommodation cavity 13 is spaced from the inner wall of the chassis 1 to facilitate the pulling of the drawer 2, making it convenient for the user to take and place the items in the drawer 2. At the same time, the air duct 21 formed by the space between the drawer 2 and the inner wall of the chassis 1 makes full use of the space inside the chassis 1, reduces the structural space of the air duct 21, is beneficial to increasing the volume ratio of the refrigeration device 100, and reduces the cost of the refrigeration device 100.

[0037] The air duct 21 is communicated with the space inside the drawer 2 through a plurality of ventilation holes 22 on the side wall of the drawer 2, which is beneficial to the air circulation in the space where the drawer 2 is located, so as to facilitate the heat exchange of the higher temperature air in the drawer 2 in the heat exchange structure 3, thereby controlling the temperature of the space where the drawer 2 is located and realizing the functions of refrigeration and cold storage.

[0038] The heat exchange structure 3 is arranged in the air duct 21, reducing the distance between the heat exchange structure 3 and the air duct 21, making the air inlet 31 and the air outlet 32 of the heat exchange structure 3 communicate with the air duct 21, and the air flow can flow and exchange heat in the drawer 2, the through hole, the air duct 21 and the heat exchange structure 3, realizing the cooling and cold storage of the accommodation cavity 13 where the drawer 2 is located, and thus the objects in the drawer 2 can be adjusted.

[0039] According to the refrigeration device 100 of the embodiment of the present invention, the outer wall of the drawer 2 is spaced from the inner wall of the chassis 1 to form the air duct 21, and the air duct 21 is communicated with the ventilation holes 22 on the side wall of the drawer 2, so as to realize the temperature adjustment of the objects in the drawer 2 while making full use of the space inside the chassis 1, reducing the structural space of the air duct 21, being beneficial to increasing the volume ratio of the refrigeration device 100, and reducing the cost of the refrigeration device 100.

[0040] According to some alternative embodiments of the present invention, the heat exchange structure 3 is arranged at the corner of the chassis 1. Refer to Figures 2 - 4 , the heat exchange structure 3 is arranged at the left corner of the chassis 1. Thus, the structure of the air duct 21 is compact, reducing the space occupied by the heat exchange component in the box body 11, being beneficial to increasing the volume of the chassis 1, improving the volume ratio, and at the same time making the air duct 21 as long as possible, allowing more air flow to flow in the box body 11, increasing the temperature adjustment efficiency of the refrigeration device 100, and enhancing the temperature adjustment efficiency of the objects in the drawer 2.

[0041] Specifically, refer to Figures 2 - 4 and in combination with Figures 5 - 8 as well as Figure 10 , the heat exchange structure 3 includes an air duct member 33, a fan 34, an evaporator 35 and a semiconductor heat exchanger 36. The air duct member 33 is along the height direction of the box body 11 (for example, Figure 1extends in the up-and-down direction (in the figure), the air duct member 33 has a supply air duct 331, an air inlet 31 and an air outlet 32 that communicate with the supply air duct 331. The fan 34 is provided in the supply air duct 331, and the fan 34 is located between the air inlet 31 and the air outlet 32. The evaporator 35 is provided on one side of the fan 34 adjacent to the air outlet 32, and the semiconductor heat exchanger 36 is provided on one side of the evaporator 35 adjacent to the fan 34. The semiconductor heat exchanger 36 is connected to the evaporator 35 through a heat exchange block 37. The air duct member 33 in the heat exchange structure 3 defines the supply air duct 331. Airflow enters the supply air duct 331 from the air inlet 31, and after heat exchange, it is discharged to the air duct 21 outside the air duct member 33 along the air outlet 32, so as to realize the temperature adjustment of the internal space of the drawer 2 and the objects in the drawer 2.

[0042] At the same time, the fan 34, the evaporator 35 and the semiconductor heat exchanger 36 of the heat exchange structure 3 are all provided in the supply air duct 331. The fan 34 can be used to accelerate or force the airflow to flow. Therefore, the fan 34 can be used to accelerate the airflow to enter the supply air duct 331 from the air inlet 31 and accelerate the airflow to flow from the supply air duct 331 until it flows out from the air outlet 32. The semiconductor heat exchanger 36 can switch the positions of the cold end (absorbing heat) and the hot end (releasing heat) by controlling the direction of the current, so as to achieve the purpose of heating or cooling. The evaporator 35 consumes energy (such as heat energy) and is accompanied by temperature changes.

[0043] Along the direction from the air inlet 31 to the air outlet 32, the fan 34, the evaporator 35 and the semiconductor heat exchanger 36 are arranged in sequence. Therefore, the semiconductor heat exchanger 36 transfers the generated temperature to the evaporator 35 through the heat exchange block 37. The airflow entering the supply air duct 331 under the action of the fan 34 exchanges heat with the surface of the evaporator 35, so that the airflow temperature changes. The heat-exchanged airflow is discharged to the air duct 21 from the air outlet, and then the temperature of the objects in the drawer 2 is adjusted.

[0044] Further, referring to Figures 10 - 12 , the evaporator 35 includes a plurality of heat exchange fins 351 and heat exchange tubes 352. The heat exchange tubes 352 extend along the height direction of the box body 11, and a plurality of heat exchange fins 351 are sleeved on the heat exchange tubes 352 at intervals. The heat exchange block 37 includes a heat exchange rod 371 and a heat exchange plate 372 that are connected to each other. The two ends of the heat exchange rod 371 are respectively connected to the semiconductor heat exchanger 36 and the heat exchange plate 372, and the heat exchange plate 372 is sleeved on the heat exchange tubes 352. The semiconductor heat exchanger 36 transfers the temperature to the heat exchange plate 372 through the heat exchange rod 371, and the heat exchange plate 372 then transfers the temperature to the heat exchange tubes 352. When the refrigeration device 100 refrigerates, the semiconductor heat exchanger 36 provides cold energy, and transfers the cold energy to the evaporator 35 through the heat exchange rod 371 and the heat exchange plate 372. When the evaporator 35 defrosts, the semiconductor heat exchanger 36 provides heat, and transfers the heat to the evaporator 35 through the heat exchange rod 371 and the heat exchange plate 372 to defrost the evaporator 35.

[0045] The heat exchange tubes 352 increase the contact area with the air flow through the heat exchange fins 351, thereby facilitating the increase of the heat exchange efficiency between the air flow driven by the fan 34 and the evaporator 35. Furthermore, the temperature change of the air flow discharged from the air outlet 32 is relatively large, which is beneficial to improving the adjustment efficiency of the objects in the drawer 2. The semiconductor heat exchanger 36 transfers heat to the evaporator 35 through the heat exchange rods 371 and the heat exchange plates 372, which is conducive to arranging the semiconductor heat exchanger 36 at the corner of the air duct member 33 to avoid the semiconductor heat exchanger 36 interfering with the flow of the air flow in the air supply duct 331.

[0046] Among them, the use of the semiconductor heat exchanger 36 eliminates the use of refrigerants, thereby reducing the amount of pipelines. At the same time, since the semiconductor heat exchanger 36 does not require a refrigerant circulation path, the return air pipe component can be cancelled. In addition, compared with the scheme using a compressor, replacing the compressor with the semiconductor heat exchanger 36 can directly cancel the use of the compressor chamber, and can further increase the volume ratio of the refrigeration device 100, while reducing the cost of the refrigeration device 100.

[0047] The evaporator 35 can omit structures such as heating wires, and the defrosting operation of the evaporator 35 can be performed through the semiconductor heat exchanger 36. Thus, while realizing the function of the evaporator 35, it is beneficial to reduce the occupied space of the evaporator 35 in the air supply duct 331, thereby reducing the heat exchange structure 3 and further increasing the volume ratio of the refrigeration device 100. For example, the evaporator 35 can be an aluminum evaporator 35. No specific limitation is made here.

[0048] Specifically, referring to Figures 5 - 8 ..., the heat exchange structure 3 further includes a first air plate 38 and a second air plate 39. The first air plate 38 is pivotally arranged at the air inlet 31, and the second air plate 39 is pivotally arranged at the air outlet 32. Since the air duct member 33 is relatively small, when the evaporator 35 defrosts itself, the evaporator 35 becomes a heating element to heat the air flow, which will cause the temperature in the drawer 2 to rise. The design of the first air plate 38 and the second air plate 39 ensures that the air supply duct 331 and the space in the drawer 2 are conducted or disconnected as needed. The opening and closing positions of the first air plate 38 and the second air plate 39 can be determined by the refrigeration demand of the heat exchange structure 3 and the heating demand of the evaporator 35. For example, referring to Figure 8 ..., when the evaporator 35 defrosts, the first air plate 38 can be used to block the air inlet 31, and the second air plate 39 can be used to block the air outlet 32 to form an independent space in the air duct member 33, and the heat generated during the defrosting of the evaporator 35 is enclosed in the air duct member 33, thereby avoiding the influence of defrosting on the temperature in the drawer 2. Another example, referring to Figure 7 ..., when the temperature in the drawer 2 needs to be quickly reduced, the first air plate 38 and the second air plate 39 can both be in the fully open state.

[0049] Furthermore, referring to Figures 5 - 8, the air duct member 33 includes a first air duct section 332 and a second air duct section 333. The first air duct section 332 extends along the width direction of the cabinet 11. An evaporator 35 is provided in the first air duct section 332, and an air outlet 32 is formed on one side of the first air duct section 332 in the width direction of the cabinet 11 (for example, Figure 1 the front-back direction in

[0050] ). The second air duct section 333 is connected to the other side of the first air duct section 332 in the width direction of the cabinet 11. The second air duct section 333 extends along the thickness direction of the cabinet 11. An air inlet 31 is formed on the side of the second air duct section 333 away from the first air duct section 332. The blower 34 is located at the connection between the second air duct section 333 and the first air duct section 332.

[0051] That is to say, the shape of the air duct member 33 is generally L-shaped. Thus, it is beneficial to extend the length of the air supply duct 331, increase the flow path and heat exchange amount of the air flow in the air supply duct 331. At the same time, a blower 34 is provided at the connection between the first air duct section 332 and the second air duct section 333, that is, the blower 34 is generally arranged in the middle of the air supply duct 331, which is beneficial to make the amount of the air flow entering the air supply duct 331 from the air inlet 31 be substantially the same as the amount of the air flow discharged from the air outlet 32, so as to improve the flow stability of the air flow and avoid affecting the objects in the drawer 2. Figures 5 - 8 Among them, referring to

[0052] and Figures 5 - 8 , at both ends of the air inlet 31 in the height direction of the cabinet 11 are a first end 311 and a second end 312 respectively. At both ends of the air outlet 32 in the height direction of the cabinet 11 are a third end 321 and a fourth end 322 respectively. In the height direction of the cabinet 11, the first end 311 is located between the third end 321 and the fourth end 322. In the height direction of the cabinet 11, the fourth end 322 is located between the first end 311 and the second end 312. That is to say, along the height direction of the cabinet 11, the third end 321, the first end 311, the fourth end 322 and the second end 312 are arranged in sequence, so that the height of at least part of the air flow entering the air supply duct 331 in the height direction of the cabinet 11 overlaps with the height of the air flow discharged from the air supply duct 331, and the height of at least part of the air flow entering the air supply duct 331 is staggered from the height of the air flow discharged from the air supply duct 331. Thus, while ensuring the air flow to flow along the air supply duct 331, it is ensured that the air flows at both ends of the drawer 2 along the height direction of the cabinet 11 can exchange heat through the heat exchange structure 3, enhancing the air flow in the drawer 2, increasing the temperature distribution uniformity in the drawer 2, and further reducing the waste of energy. At the same time, it is beneficial to improve the consistency of the temperature adjustment speed and the temperature change uniformity of the objects in the drawer 2, and avoid uneven texture change of the objects from reducing the quality and safety of the objects.

[0052] Specifically, referring to Figures 5 - 8, a first guide plate 334 is provided in the first air duct section 332. One end of the first guide plate 334 is connected to the fourth end 322 of the air outlet 32, and the other end of the first guide plate 334 extends obliquely toward the second end 312 of the air inlet 31. The first guide plate 334 guides the air flow in the air supply duct 331. After the air flow exchanges heat with the evaporator 35, it flows along the direction of the first guide plate 334 until it is discharged into the air duct 21. Then the air flow enters the drawer 2 through the ventilation holes 22 on the side wall of the drawer 2 to adjust the temperature of the objects in the drawer 2. One end of the first guide plate 334 is connected to the fourth end 322 of the air outlet 32. In the height direction of the cabinet 11, the air flow is discharged from one end far from the center of the drawer 2 to the position adjacent to the fourth end 322 of the air outlet 32 through the first guide plate 334.

[0053] Meanwhile, it avoids the defrosting water generated during the defrosting process of the evaporator 35 from entering the air duct 21, thereby avoiding frosting in the air duct 21, improving the cleanliness of the use of the accommodation cavity 13, and enhancing the user experience of the refrigeration device 100.

[0054] A second guide plate 335 is provided in the second air duct section 333. One end of the second guide plate 335 is connected to the first end 311 of the air inlet 31, and the other end of the second guide plate 335 extends obliquely toward the third end 321 of the air outlet 32. The second guide plate 335 guides the air flow. After the air flow enters from the air inlet 31, it flows along the direction of the second guide plate 335 and then exchanges heat with the evaporator 35. Meanwhile, the second guide plate 335 is connected to the first end 311 of the air inlet 31. In the height direction of the cabinet 11, it ensures that the air flow adjacent to the first end 311 of the air inlet 31 can also enter the air duct 21, increasing the heat exchange uniformity of the air flow in the drawer 2.

[0055] Among them, referring to Figures 5 - 8 , combined with Figure 10 , the blower 34, the evaporator 35 and the semiconductor heat exchanger 36 are arranged between the first guide plate 334 and the second guide plate 335. Thus, under the action of the blower 34, the air flow is accelerated to enter the air supply duct 331 between the third end 321 and the fourth end 322 of the air inlet 31, exchanges heat with the evaporator 35 in the air supply duct 331, and then the heat-exchanged air flow is discharged into the air duct 21 from the space between the first end 311 and the second end 312 of the air outlet 32 under the guiding action of the first guide plate 334.

[0056] In addition, the air duct member 33 is isolated from the air duct 21 on the side of the first end 311 of the air inlet 31 away from the second end 312, so as to enable the air flow at the first end 311 of the drawer 2 far from the air inlet 31 to enter the air duct 21 as much as possible; at the same time, the air duct member 33 is isolated from the air duct 21 on the side of the fourth end 322 of the air outlet 32 away from the third end 321, so that when the air flow is discharged to the air duct 21, it is discharged into the air duct 21 between the third end 321 and the fourth end 322.

[0057] Among them, the evaporator 35 can be set to a structure with a flush upper end and a shortened lower end. Among them, the inclination angle of the lower end can be coordinated with the inclination angle of the first guide plate 334.

[0058] Furthermore, referring to Figures 5 - 8 , in the height direction of the cabinet 11, the first end 311 of the air inlet 31 is located in the middle of the drawer 2. Thus, the position where the air flow enters the air duct 21 can be lower than the height of the drawer 2, so that the air flow enters the air duct 21 from the middle and lower part of the drawer 2, ensuring that the air flow passes through the bottom of the drawer 2.

[0059] In the height direction of the cabinet 11, the fourth end 322 of the air outlet 32 is located in the middle of the drawer 2. The air flow flows from the middle and upper part of the drawer 2 into the drawer 2. Part of the air flow enters the interior of the drawer 2 through the ventilation holes 22 on the side wall of the drawer 2, and most of the air flow can be directly blown out from the air outlet 32 to the upper part of the drawer 2, which is beneficial to adjusting the temperature of the objects in the drawer 2 from top to bottom.

[0060] Thus, through the setting of the first end 311 and the fourth end 322, the air flow flows both at the upper part and the bottom of the drawer 2, so that the air flow flows in the space where the drawer 2 is located, thereby improving the temperature uniformity inside the drawer 2 and being beneficial to the storage quality of the objects in the drawer 2.

[0061] According to some alternative embodiments of the present utility model, referring to Figures 1 - 4 , the refrigeration device 100 further includes at least one partition 4. The partition 4 is arranged in the accommodation cavity 13 and divides the accommodation cavity 13 into at least two sub-cavities 131 arranged along the height direction of the cabinet 11. Two adjacent sub-cavities 131 are not communicated with each other; there are multiple drawers 2 and multiple heat exchange structures 3. The multiple drawers 2 and the multiple heat exchange structures 3 correspond one by one. Each drawer 2 is arranged in the corresponding sub-cavity 131, and each heat exchange structure 3 is arranged in the air duct 21 defined by the chassis 1 and the corresponding drawer 2.

[0062] Referring to Figure 1, The refrigeration device 100 includes two partition plates 4. Along the height direction of the box body 11, the two partition plates 4 are arranged at intervals to divide the accommodation cavity 13 into three sub-cavities 131. The three sub-cavities 131 are independent of each other, and a heat exchange structure 3 is provided in each sub-cavity 131. The air duct 21 defined by the drawer 2 and the inner wall of the chassis 1 in each sub-cavity 131 is communicated with the air supply duct 331 of the heat exchange structure 3, so that each sub-cavity 131 can be cooled separately, reducing the influence between adjacent sub-cavities 131.

[0063] Compared with the traditional refrigeration device 100, the accommodation cavity 13 is divided into multiple relatively sealed sub-cavities 131, and each air duct 21 is defined within each sub-cavity 131, which is beneficial to reducing the sizes of the air duct 21 and the heat exchange structure 3. At the same time, the degree of freedom in setting the position of the heat exchange structure 3 is realized, and the space for the structural layout in the sub-cavity 131 is increased. Each evaporator 35 is separately connected to a semiconductor heat exchanger 36, realizing the division of the cooling capacity from the whole into multiple parts to achieve hierarchical precise refrigeration, that is, each semiconductor heat exchanger 36 separately controls the evaporator 35 to achieve separate refrigeration for each layer. At the same time, thus, the inside of the box body 11 is divided into multiple layers, and each layer can achieve separate refrigeration. Hierarchical refrigeration can disperse the large semiconductor heat exchanger 36 required by the refrigeration device 100 to achieve refrigeration with multiple groups of small semiconductor heat exchangers 36. The evaporator 35 can be cooled through the semiconductor heat exchanger 36 to cool the objects in the drawer 2, or can be heated to defrost the evaporator 35, which is beneficial to the separate control of each sub-cavity 131 and improves the distribution controllability of the refrigeration device 100.

[0064] Optionally, a plurality of ribs are provided on the side of the box door 12 facing the box body 11. The arrangement of the ribs is easy to cooperate with the partition plate 4, which is beneficial to increasing the setting stability of the partition plate 4. The cooperation between the ribs and the partition plate 4 can also increase the spatial independence and sealing performance of the sub-cavity 131, so as to be beneficial to independently controlling the temperature of each sub-cavity 131 and avoiding the influence of temperature control between sub-cavities 131.

[0065] In addition, a sealing member can be wrapped around the circumference where the partition plate 4 contacts the inner wall of the box body 11. One side of the wrapping member is matched with the circumference of the partition plate 4, and the other side of the wrapping member is matched with the inner wall of the box body 11, so as to facilitate the gapless cooperation between the partition plate 4 and the inner wall of the box body 11. While increasing the setting stability and reliability of the partition plate 4, the independence between adjacent sub-cavities 131 is further increased. Among them, the sealing member can be a soft rubber member. But it is not limited to this.

[0066] At the same time, the gaps between the drawer 2 and the two side walls of the box body 11, between the drawer 2 and the side wall of the box body 11 away from the box door 12, between the drawer 2 and the partition plate 4, and between the drawer 2 and the box door 12 can all serve as the air duct 21, thereby increasing the circulation path of the air flow and increasing the efficiency and uniformity of adjusting the temperature in the sub-cavity 131.

[0067] Reference Figures 1 - 9 According to an embodiment of the second aspect of the present utility model, a refrigeration device 100 includes a chassis 1 and at least one drawer 2. The chassis 1 includes a box body 11 and a box door 12. One side of the box body 11 in the thickness direction is open, the box door 12 is arranged on the open side of the box body 11, the box door 12 and the box body 11 jointly define a receiving cavity 13, the drawer 2 is arranged in the receiving cavity 13, the outer wall of the drawer 2 is spaced apart from the inner wall of the chassis 1 to form an air duct 21, and a plurality of ventilation holes 22 are formed on the side wall of the drawer 2, and each ventilation hole 22 communicates with the air duct 21.

[0068] The refrigeration device 100 further includes: at least one heat exchange structure 3, the heat exchange structure 3 is arranged in the air duct 21, the heat exchange structure 3 has an air inlet 31 and an air outlet 32 communicating with the air duct 21; a water baffle 5, the water baffle 5 is arranged in the heat exchange structure 3, and the water baffle 5 is located at the bottom of the heat exchange structure 3; a drain pipe 6, one end of the drain pipe 6 extends into the heat exchange structure 3, and the other end of the drain pipe 6 extends out of the chassis 1; wherein, when the heat exchange structure 3 works, the air flow in the drawer 2 flows through the ventilation holes 22 and the air inlet 31 into the heat exchange structure 3 for heat exchange, and the heat-exchanged air flow flows through the air outlet 32 and the ventilation holes 22 into the drawer 2 to adjust the temperature of the objects in the drawer 2.

[0069] As Figures 1 - 8 shown, three drawers 2 are arranged in the box body 11 of the refrigeration device 100. An air duct 21 is formed by the interval between each drawer 2 and the inner wall of the chassis 1. The air duct 21 communicates with the inside of the drawer 2 through the ventilation holes 22 on the side wall of the drawer 2, realizing the temperature adjustment of the objects in the drawer 2. At the same time, the air inlet 31 and the air outlet 32 of the heat exchange structure 3 communicate with the air duct 21, so as to realize the connection of the air flow in the receiving cavity 13, that is, the air flow in the drawer 2 can enter the air duct 21 through the ventilation holes 22, the air flow in the air duct 21 can enter the air inlet 31, and then flow out from the air outlet 32 of the heat exchange structure 3 to the air duct 21, and then the air flow enters the drawer 2 along the ventilation holes 22 again. Thus, a circulating flow path of the air flow in the receiving cavity 13 is realized, reducing the requirements of the refrigeration device 100 on the external environment (that is, it is not necessary to extract gas from the external environment) and the impact on the external environment (that is, it is not necessary to export the gas in the receiving cavity 13 to the external environment to cause changes in the external temperature).

[0070] A water baffle 5 is arranged at the bottom of the heat exchange structure 3. The water baffle 5 can effectively limit the defrosting water generated during the defrosting process of the heat exchange structure 3, and then discharge it out of the chassis 1 through the drain pipe 6, avoiding the defrosting water flowing into the air duct 21, thereby avoiding frosting in the receiving cavity 13, and further ensuring the smoothness of the drawer 2 when pulled out.

[0071] According to the refrigeration device 100 of the embodiments of the present utility model, while realizing the temperature adjustment of the objects in the drawer 2, the water baffle 5 is used to limit the defrosting water generated during the defrosting process of the heat exchange structure 3, so as to prevent the defrosting water from entering the air duct 21 and causing frosting in the air duct 21, thereby ensuring the smoothness of the drawer 2 when it is pulled out.

[0072] According to some embodiments of the present utility model, a first guiding plate 334 is provided at the bottom of the air outlet 32, and the water baffle 5 is arranged at a position on the side of the first guiding plate 334 away from the first end 311 and facing the second end 312 of the air inlet 31, so that after the defrosting water accumulates on the side of the first guiding plate 334 facing the second end 312 of the air inlet 31, it is discharged along the drain pipe 6, preventing the defrosting water from flowing into the air duct 21.

[0073] The other components and operations of the refrigeration device 100 according to the embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail here.

[0074] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0075] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0076] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0077] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A refrigeration device, comprising: A chassis, the chassis includes a box body and a box door, one side in the thickness direction of the box body is open, the box door is arranged on the open side of the box body, and the box door and the box body jointly define a receiving cavity; At least one drawer, the drawer is arranged in the receiving cavity, the outer wall of the drawer is spaced apart from the inner wall of the chassis to form an air duct, and a plurality of ventilation holes are formed on the side wall of the drawer, and each ventilation hole communicates with the air duct; It is characterized in that The refrigeration device further includes: At least one heat exchange structure, the heat exchange structure is arranged in the air duct, and the heat exchange structure has an air inlet and an air outlet communicating with the air duct; Wherein, when the heat exchange structure works, the air flow in the drawer flows through the ventilation holes and the air inlet into the heat exchange structure for heat exchange, and the heat-exchanged air flow flows through the air outlet and the ventilation holes into the drawer to adjust the temperature of the objects in the drawer.

2. The refrigeration device according to claim 1, characterized in that The heat exchange structure is arranged at the corner of the chassis.

3. The refrigeration device according to claim 2, characterized in that, The heat exchange structure includes: An air duct member, the air duct member extends along the height direction of the box body, and the air duct member has a supply air duct and the air inlet and the air outlet communicating with the supply air duct; A fan, the fan is arranged in the supply air duct, and the fan is located between the air inlet and the air outlet; An evaporator, the evaporator is arranged on the side of the fan adjacent to the air outlet; A semiconductor heat exchanger, the semiconductor heat exchanger is arranged on the side of the evaporator adjacent to the fan, and the semiconductor heat exchanger is connected to the evaporator through a heat exchange block.

4. The refrigeration device according to claim 3, characterized in that, The evaporator includes a plurality of heat exchange fins and heat exchange tubes, the heat exchange tubes extend along the height direction of the box body, and a plurality of the heat exchange fins are sleeved on the heat exchange tubes at intervals; The heat exchange block includes a heat exchange rod and a heat exchange plate connected to each other, two ends of the heat exchange rod are respectively connected to the semiconductor heat exchanger and the heat exchange plate, and the heat exchange plate is sleeved on the heat exchange tube.

5. The refrigeration device according to claim 3, characterized in that, The heat exchange structure further includes: A first air plate, the first air plate is pivotally arranged at the air inlet; A second air plate, the second air plate is pivotally arranged at the air outlet.

6. The refrigeration device according to claim 3, characterized in that, The air duct member includes: A first air duct section, the first air duct section extends along the width direction of the box body, the evaporator is arranged in the first air duct section, and the first air duct section forms the air outlet on one side in the width direction of the box body; A second air duct section, the second air duct section is connected to the other side of the first air duct section in the width direction of the box body, the second air duct section extends along the thickness direction of the box body, the air inlet is formed on the side of the second air duct section far from the first air duct section, and the fan is located at the connection of the second air duct section and the first air duct section; Wherein, at both ends of the air inlet in the height direction of the box body are a first end and a second end respectively, and at both ends of the air outlet in the height direction of the box body are a third end and a fourth end respectively, In the height direction of the cabinet, the first end is located between the third end and the fourth end, and in the height direction of the cabinet, the fourth end is located between the first end and the second end.

7. The refrigeration device according to claim 6, characterized in that, A first guiding plate is provided in the first air duct section. One end of the first guiding plate is connected to the fourth end of the air outlet, and the other end of the first guiding plate extends obliquely towards the second end of the air inlet. A second guiding plate is provided in the second air duct section. One end of the second guiding plate is connected to the first end of the air inlet, and the other end of the second guiding plate extends obliquely towards the third end of the air outlet. Wherein, the blower, the evaporator and the semiconductor heat exchanger are arranged between the first guiding plate and the second guiding plate.

8. The refrigeration device according to claim 7, characterized in that, In the height direction of the cabinet, the first end of the air inlet is located in the middle of the drawer; and / or In the height direction of the cabinet, the fourth end of the air outlet is located in the middle of the drawer.

9. The refrigeration device according to any one of claims 1-8, characterized in that, Further comprising: At least one partition plate, which is arranged in the accommodating cavity and divides the accommodating cavity into at least two sub-cavities arranged along the height direction of the cabinet, and two adjacent sub-cavities are not communicated with each other. Both the drawer and the heat exchange structure are multiple. The multiple drawers correspond to the multiple heat exchange structures one by one. Each drawer is arranged in the corresponding sub-cavity, and each heat exchange structure is arranged in the air duct defined by the chassis and the corresponding drawer.

10. A refrigeration device, comprising: A chassis, the chassis includes a cabinet and a cabinet door. One side in the thickness direction of the cabinet is open, the cabinet door is arranged on the open side of the cabinet, and the cabinet door and the cabinet jointly define an accommodating cavity. At least one drawer, the drawer is arranged in the accommodating cavity. The outer wall of the drawer is spaced apart from the inner wall of the chassis to form an air duct, and a plurality of ventilation holes are formed on the side wall of the drawer, and each ventilation hole is communicated with the air duct. It is characterized in that The refrigeration device further comprises: At least one heat exchange structure, the heat exchange structure is arranged in the air duct, and the heat exchange structure has an air inlet and an air outlet communicated with the air duct. A water baffle, the water baffle is arranged in the heat exchange structure, and the water baffle is located at the bottom of the heat exchange structure. A drain pipe, one end of the drain pipe extends into the heat exchange structure, and the other end of the drain pipe extends out of the chassis. Wherein, when the heat exchange structure works, the air flow in the drawer flows through the ventilation holes and the air inlet into the heat exchange structure for heat exchange, and the heat-exchanged air flow flows through the air outlet and the ventilation holes into the drawer to adjust the temperature of the objects in the drawer.

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