Freezing assembly and refrigerator
By combining a semiconductor cooling chip and a cooling fan with a heat-conducting block and thermal insulation structure, the problems of high energy consumption and unstable temperature in ultra-low temperature freezers are solved, achieving stable storage in an ultra-low temperature environment with low energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO FOTILE KITCHEN WARE CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-09
Smart Images
Figure CN224340436U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of ultra-low temperature refrigeration for refrigerators, and in particular relates to a freezing component and a refrigerator. Background Technology
[0002] Currently, ultra-low temperature refrigerators on the market typically use mixed refrigerants to meet the preservation needs of special foods (such as ultra-low temperature tuna stored at -60℃). However, these refrigerators have significant drawbacks: on the one hand, the compressor needs to operate continuously at high intensity to maintain the ultra-low temperature environment, resulting in high energy consumption; on the other hand, the evaporator frosts too quickly, requiring frequent activation of the defrosting program, which not only exacerbates energy consumption but also causes significant temperature fluctuations in the ultra-low temperature compartment, making it difficult to maintain a stable storage environment. Utility Model Content
[0003] In view of this, it is necessary to provide a refrigeration component and refrigerator for solving the above-mentioned technical problems.
[0004] A freezing assembly, the freezing assembly comprising:
[0005] The freezer inner liner forms a freezer compartment and a return air duct. The freezer inner liner has a first air outlet, a second air outlet and a return air outlet in sequence from top to bottom. The freezer compartment and the return air duct are connected through the first air outlet, the second air outlet and the return air outlet.
[0006] A low-temperature chamber is located between the second air outlet and the return air outlet and is housed within the freezer compartment. The low-temperature chamber forms a low-temperature compartment, which is independent of the freezer compartment.
[0007] A low-temperature refrigeration system is installed on the low-temperature chamber. The low-temperature refrigeration system includes a thermoelectric cooler and a heat sink. The cold end of the thermoelectric cooler is thermally connected to the low-temperature chamber to provide cooling to the low-temperature compartment. The heat sink is housed in the freezing compartment and thermally connected to the hot end of the thermoelectric cooler. A cooling fan is installed on the heat sink, which can guide the freezing air discharged from the second air outlet to blow towards the heat sink.
[0008] A refrigeration evaporator is located between the second air outlet and the return air outlet and is housed within the return air duct.
[0009] It is understandable that the cold end of the thermoelectric cooler is used to provide cooling to the low-temperature chamber of the cryogenic chamber, and the refrigerated air discharged from the second air outlet in the refrigeration chamber is used to dissipate heat from the hot end of the thermoelectric cooler, so that the thermoelectric cooler can perform ultra-low temperature refrigeration on the cryogenic chamber. In this process, not only can the working energy consumption of the refrigeration component be reduced, but the temperature stability of the low-temperature chamber of the cryogenic chamber can also be ensured.
[0010] In one embodiment, the cooling fan is mounted on the end of the radiator facing the second air outlet;
[0011] Furthermore, the number of cooling fans is configured to be multiple, and the multiple cooling fans are arranged sequentially at intervals along the width direction of the heat sink.
[0012] Understandably, using multiple cooling fans to guide the cooled air discharged from the second air outlet toward the radiator can effectively dissipate heat from the radiator and allow the heat at the hot end of the thermoelectric cooler to be dissipated as quickly as possible, thus ensuring the continuous low temperature at the hot end of the thermoelectric cooler and meeting the requirements of the cold end of the thermoelectric cooler for ultra-low temperature cooling in the cryogenic chamber.
[0013] In one embodiment, a fan bracket is mounted on the heat sink, and multiple cooling fans are mounted on the fan bracket.
[0014] Understandably, multiple cooling fans are mounted to the heatsink via fan brackets, which facilitates the integration of multiple cooling fans onto the heatsink.
[0015] In one embodiment, the number of cryogenic refrigeration systems is configured as multiple sets, and the multiple sets of cryogenic refrigeration systems are arranged sequentially and at intervals along the width direction of the cryogenic chamber at the back of the cryogenic chamber.
[0016] It is understandable that multiple cryogenic refrigeration systems are used to perform ultra-low temperature refrigeration on the cryogenic chamber, thus ensuring that the cryogenic chamber receives sufficient cooling to maintain the ultra-low temperature.
[0017] In one embodiment, the number of cryogenic refrigeration systems is configured to be two sets;
[0018] The refrigeration assembly also includes a controller, which is electrically connected to both of the cryogenic refrigeration systems and is used to simultaneously control the opening and closing of the two cryogenic refrigeration systems.
[0019] In one embodiment, the cryogenic chamber includes a metal liner that encloses the cryogenic compartment.
[0020] The low-temperature refrigeration system also includes a cooling block, which is thermally connected to the cold end and the metal inner liner.
[0021] It is understandable that using a heat-conducting block to extend the heat conduction distance of the cold end on the semiconductor cooling chip allows the cold energy at the cold end to be directly transferred to the metal inner liner through the heat-conducting block, and the metal inner liner to perform ultra-low temperature cooling on the low-temperature chamber, thus ensuring the continuous cooling of the low-temperature chamber.
[0022] In one embodiment, the cooling block has a first end face and a second end face, the first end face and the second end face being disposed on two opposite sides of the cooling block;
[0023] The first end face is attached to the cold end, and the second end face is attached to the outer peripheral wall of the metal inner liner.
[0024] In one embodiment, the cryogenic refrigeration system further includes an insulation jacket that wraps around the peripheral wall of the cooling block to insulate the peripheral wall of the cooling block.
[0025] It is understandable that by using an insulation sleeve to insulate the outer wall of the cooling block, the cold energy at the cold end of the thermoelectric cooler can only be transferred to the low-temperature chamber and will not diffuse to the surrounding area of the cooling block, thus maximizing the utilization of the cold energy at the cold end of the thermoelectric cooler.
[0026] In one embodiment, the low-temperature chamber includes a low-temperature chamber body, which includes a metal liner, a foam layer, a vacuum insulation panel, and an outer shell. The foam layer and the vacuum insulation panel are disposed between the metal liner and the outer shell to insulate the metal liner.
[0027] The metal inner liner encloses and forms the low-temperature compartment.
[0028] It is understandable that using a foam layer and a vacuum insulation panel to achieve the insulation of the metal liner can ensure the overall thermal insulation performance of the cryogenic chamber.
[0029] This application also claims protection for a refrigerator that includes the aforementioned freezing components.
[0030] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:
[0031] The refrigeration unit and refrigerator claimed in this application utilize the cold end of a thermoelectric cooler to provide cooling to the low-temperature chamber of a cryogenic chamber, and use the refrigerated air discharged from the second air outlet inside the refrigeration chamber to dissipate heat from the hot end of the thermoelectric cooler, enabling the thermoelectric cooler to perform ultra-low temperature refrigeration on the cryogenic chamber. In this process, not only can the operating energy consumption of the refrigeration unit be reduced, but the temperature stability of the low-temperature chamber inside the cryogenic chamber can also be ensured. Attached Figure Description
[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0033] Figure 1 This is a schematic diagram of the structure of the freezing component provided in this application.
[0034] Figure 2 This is a structural schematic diagram of the freezing component provided in this application from another perspective.
[0035] Figure 3 for Figure 2 Sectional view of AA.
[0036] Figure 4 for Figure 3 Enlarged view of the middle P section.
[0037] Figure 5 This is a schematic diagram of the two cryogenic refrigeration systems in this application assembled on a cryogenic chamber.
[0038] Reference numerals: 100, refrigeration assembly; 10, refrigeration liner; 101, refrigeration compartment; 102, return air duct; 11, first air outlet; 12, second air outlet; 13, return air outlet; 20, low-temperature chamber; 201, low-temperature compartment; 21, low-temperature chamber body; 211, metal liner; 2111, outer peripheral wall; 212, foam layer; 213, vacuum insulation panel; 214, outer shell; 22, low-temperature chamber door; 30, low-temperature refrigeration system; 31, semiconductor refrigeration chip; 311, cold end; 312, hot end; 32, radiator; 33, cooling fan; 331, fan bracket; 34, cooling block; 341, first end face; 342, second end face; 343, peripheral wall; 35, insulation jacket. Detailed Implementation
[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0040] It should be noted that when a component is said to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or may have an intervening component.
[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0042] like Figures 1 to 5 As shown, the refrigeration assembly 100 provided in this application includes a refrigeration liner 10, a low-temperature chamber 20, a low-temperature refrigeration system 30, and a refrigeration evaporator. The refrigeration liner 10 forms a refrigeration compartment 101 and a return air duct 102. The refrigeration liner 10 has a first air outlet 11, a second air outlet 12, and a return air outlet 13 sequentially opened from top to bottom. The refrigeration compartment 101 and the return air duct 102 are connected through the first air outlet 11, the second air outlet 12, and the return air outlet 13. The low-temperature chamber 20 is located between the second air outlet 12 and the return air outlet 13 and is housed within the refrigeration compartment 101. The low-temperature chamber 200 forms a low-temperature compartment 201, which is independent of the refrigeration evaporator. A freezer compartment 101 is provided; a low-temperature refrigeration system 30 is installed on the low-temperature chamber 20. The low-temperature refrigeration system 30 includes a thermoelectric cooler 31 and a radiator 32. The cold end 311 of the thermoelectric cooler 31 is thermally connected to the low-temperature chamber 20 to provide cooling capacity to the low-temperature compartment 201. The radiator 32 is housed in the freezer compartment 101 and is thermally connected to the hot end 312 of the thermoelectric cooler 31. A cooling fan 33 is installed on the radiator 32. The cooling fan 33 can guide the refrigerated air discharged from the second air outlet 12 to blow towards the radiator 32. A freezer evaporator (not shown) is located between the second air outlet 12 and the return air outlet 13 and is housed in the return air duct 102.
[0043] As can be seen from the above, the refrigeration assembly 100 of this application can use the refrigeration air blown out by the first air outlet 11 to cool the refrigeration chamber 101, and use the refrigeration air blown out by the second air outlet 12 to dissipate heat from the hot end 312 of the thermoelectric cooler 31, so that the thermoelectric cooler 31 can provide sufficient cooling capacity to cool the low-temperature chamber 201 of the low-temperature chamber 20. In this process, since the hot end 312 of the thermoelectric cooler 31 is effectively dissipated, the thermoelectric cooler 31 can perform ultra-low temperature refrigeration on the low-temperature chamber 20. This not only reduces the working energy consumption of the refrigeration assembly 100, but also ensures the stability of the temperature inside the low-temperature chamber 201 of the low-temperature chamber 20.
[0044] It should be noted that when the thermoelectric cooler 31 is working, it uses the temperature difference between the hot end 312 and the cold end 311 for cooling. Since the present application uses the heat sink 32 to conduct the temperature of the hot end 312 of the thermoelectric cooler 31 and uses the cooling air guided by the second air outlet 12 for effective heat dissipation, the temperature of the hot end 312 of the thermoelectric cooler 31 can be kept low, thereby meeting the ultra-low temperature cooling requirements of the low temperature chamber 201 of the low temperature chamber 20 of the low temperature chamber 20.
[0045] like Figure 1 , Figure 3 and Figure 5 As shown, in one embodiment, the cryogenic chamber 20 includes a cryogenic chamber body 21 and a cryogenic chamber door 22. The cryogenic chamber door 22 is connected to the cryogenic chamber body 21 via a hinge (not shown) and is used to control the opening / closing of the cryogenic chamber body 21, which encloses the cryogenic chamber 201.
[0046] like Figure 3 , Figure 4 As shown, in this embodiment, the cryogenic chamber 21 includes a metal inner liner 211, a foam layer 212, a vacuum insulation panel 213, and an outer shell 214. The foam layer 212 and the vacuum insulation panel 213 are disposed between the metal inner liner 211 and the outer shell 214 to insulate the metal inner liner 211. In other words, the cryogenic chamber 21 in this embodiment can achieve heat insulation of the metal inner liner 211 using the foam layer 212 and the vacuum insulation panel 213, thus ensuring the overall thermal insulation performance of the cryogenic chamber 21. Here, the metal inner liner 211, the foam layer 212, the vacuum insulation panel 213, and the outer shell 214 are arranged sequentially from the inside to the outside.
[0047] In one embodiment, multiple sets of cryogenic refrigeration systems 30 are configured, and these systems are arranged sequentially and at intervals along the width of the cryogenic chamber 20 at the back of the chamber 20. In other words, this embodiment can use multiple sets of cryogenic refrigeration systems 30 to perform ultra-low temperature refrigeration on the cryogenic chamber 20, thus ensuring that the cryogenic chamber 201 of the cryogenic chamber 20 receives sufficient cooling to maintain the ultra-low temperature.
[0048] like Figure 5 As shown, in this embodiment, the number of cryogenic refrigeration systems 30 is configured as two sets; wherein, the refrigeration assembly 100 also includes a controller (not shown), which is electrically connected to both cryogenic refrigeration systems 30 respectively, and is used to simultaneously control the on / off of both cryogenic refrigeration systems 30. That is to say, the two cryogenic refrigeration systems 30 in this embodiment can be turned on or off simultaneously to meet the usage requirements of whether the cryogenic chamber 20 is used for ultra-low temperature refrigeration.
[0049] like Figure 5 As shown, in one embodiment, a cooling fan 33 is mounted on the end of the radiator 32 facing the second air outlet 12; and the number of cooling fans 33 is configured to be multiple, arranged sequentially at intervals along the width direction of the radiator 32. That is, this embodiment can use multiple cooling fans 33 to guide the cooling air discharged from the second air outlet 12 towards the radiator 32, thus achieving effective heat dissipation of the radiator 32 and allowing the heat of the hot end 312 of the thermoelectric cooler 31 to be dissipated as quickly as possible, ensuring the continuous low temperature of the hot end 312 of the thermoelectric cooler 31, thereby meeting the ultra-low temperature cooling requirements of the cold end 311 of the thermoelectric cooler 31 for the cryogenic chamber 20. Here, the number of cooling fans 33 is configured to be three. It can be understood that in other embodiments, the number of cooling fans 33 can also be configured to be two, four, or even more, depending on the specific size of the radiator 32 and the cooling fans 33, which will not be elaborated here.
[0050] like Figure 4 , Figure 5 As shown, in this embodiment, a fan bracket 331 is mounted on the heat sink 32, and multiple cooling fans 33 are mounted on the fan bracket 331. That is, in this embodiment, multiple cooling fans 33 are assembled onto the heat sink 32 via the fan bracket 331, which facilitates the integration of multiple cooling fans 33 onto the heat sink 32. It should be noted that the heat sink 32 in this embodiment can specifically be configured as heat dissipation fins.
[0051] Because the distance between the cold end 311 and the hot end 312 of the thermoelectric cooler 31 is extremely small, approximately 2 mm, the cryogenic refrigeration system 30 in one embodiment of this application further includes a cooling block 34, which is thermally connected to both the cold end 311 and the metal liner 211 of the cryogenic chamber 20. This allows the cryogenic refrigeration system 30 to extend the cooling distance of the cold end 311 on the thermoelectric cooler 31 using the cooling block 34, so that the cold energy of the cold end 311 can be directly transferred to the metal liner 211 via the cooling block 34, and the metal liner 211 can then perform ultra-low temperature refrigeration on the cryogenic chamber 201, thus ensuring continuous refrigeration of the cryogenic chamber 201.
[0052] like Figure 4 As shown, in this embodiment, the cooling block 34 has a first end face 341 and a second end face 342, which are disposed on opposite sides of the cooling block 34. The first end face 341 is attached to the cold end 311, and the second end face 342 is attached to the outer peripheral wall 2111 of the metal inner liner 211. That is, the cooling block 34 in this embodiment can contact the outer peripheral wall 2111 of the metal inner liner 211 and the cold end 311 of the semiconductor cooling chip 31 in a face-to-face manner, and realize the rapid transfer of cold energy from the cold end 311 to the metal inner liner 211.
[0053] like Figure 4 As shown, in this embodiment, the cryogenic refrigeration system 30 further includes an insulation sleeve 35, which surrounds the peripheral wall 343 of the cooling block 34 to insulate the peripheral wall 343 of the cooling block 34. This ensures that the cooling energy of the thermoelectric cooler 31 can only be transferred to the cryogenic chamber 201 and will not diffuse to the periphery of the cooling block 34, thereby maximizing the utilization of the cooling energy at the cold end 311 of the thermoelectric cooler 31.
[0054] In addition, this application also provides a refrigerator, including the aforementioned freezing component 100.
[0055] This application also claims protection for a refrigerator that includes the aforementioned freezing components.
[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0057] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.
Claims
1. A freezing assembly, characterized in that, The freezing assembly (100) includes: The freezer liner (10) forms a freezer compartment (101) and a return air duct (102). The freezer liner (10) is provided with a first air outlet (11), a second air outlet (12) and a return air outlet (13) from top to bottom. The freezer compartment (101) and the return air duct (102) are connected through the first air outlet (11), the second air outlet (12) and the return air outlet (13). The low-temperature chamber (20) is located between the second air outlet (12) and the return air outlet (13) and is housed in the freezer compartment (101). The low-temperature chamber (20) has a low-temperature compartment (201) which is independent of the freezer compartment (101). A low-temperature refrigeration system (30) is installed on the low-temperature chamber (20). The low-temperature refrigeration system (30) includes a thermoelectric cooler (31) and a radiator (32). The cold end (311) of the thermoelectric cooler (31) is thermally connected to the low-temperature chamber (20) to provide cooling capacity to the low-temperature compartment (201). The radiator (32) is housed in the freezing compartment (101) and thermally connected to the hot end (312) of the thermoelectric cooler (31). A cooling fan (33) is installed on the radiator (32). The cooling fan (33) can guide the freezing air discharged from the second air outlet (12) to blow towards the radiator (32). The refrigeration evaporator is located between the second air outlet (12) and the return air outlet (13) and is housed in the return air duct (102).
2. The freezing assembly according to claim 1, characterized in that, The cooling fan (33) is installed on the end of the radiator (32) facing the second air outlet (12); Furthermore, the number of cooling fans (33) is configured to be multiple, and the multiple cooling fans (33) are arranged sequentially at intervals along the width direction of the heat sink (32).
3. The freezing assembly according to claim 2, characterized in that, A fan bracket (331) is installed on the radiator (32), and multiple cooling fans (33) are installed on the fan bracket (331).
4. The freezing assembly according to claim 1, characterized in that, The number of the cryogenic refrigeration system (30) is configured as multiple sets, and the multiple sets of the cryogenic refrigeration system (30) are arranged sequentially and at intervals along the width direction of the cryogenic chamber (20) on the back of the cryogenic chamber (20).
5. The freezing assembly according to claim 4, characterized in that, The number of the cryogenic refrigeration system (30) is configured as two sets; The refrigeration assembly (100) also includes a controller, which is electrically connected to the two sets of the cryogenic refrigeration systems (30) respectively, and is used to simultaneously control the opening / closing of the two sets of cryogenic refrigeration systems (30).
6. The freezing assembly according to claim 1, characterized in that, The low-temperature chamber (20) includes a metal liner (211), which encloses the low-temperature compartment (201). The low-temperature refrigeration system (30) also includes a cooling block (34), which is thermally connected to the cold end (311) and the metal inner liner (211).
7. The freezing assembly according to claim 6, characterized in that, The cooling block (34) has a first end face (341) and a second end face (342), and the first end face (341) and the second end face (342) are disposed on two opposite sides of the cooling block (34); The first end face (341) is attached to the cold end (311), and the second end face (342) is attached to the outer peripheral wall (2111) of the metal inner liner (211).
8. The freezing assembly according to claim 6, characterized in that, The low-temperature refrigeration system (30) also includes an insulation sleeve (35), which is provided to wrap around the peripheral wall (343) of the cooling block (34) and is used to insulate the peripheral wall (343) of the cooling block (34).
9. The freezing assembly according to claim 1, characterized in that, The low-temperature chamber (20) includes a low-temperature chamber body (21), which includes a metal inner liner (211), a foam layer (212), a vacuum insulation plate (213), and an outer shell (214). The foam layer (212) and the vacuum insulation plate (213) are disposed between the metal inner liner (211) and the outer shell (214) for heat insulation of the metal inner liner (211). The metal liner (211) encloses and forms the low-temperature chamber (201).
10. A refrigerator, characterized in that, Includes the freezing component (100) as described in any one of claims 1 to 9.