Refrigeration equipment

Abstract

The present disclosure relates to a refrigeration device, comprising: a box body (10) having a refrigeration cavity inside; a door body (20) disposed on the box body (10) in an openable and closable manner; a one-way valve (31) disposed on the door body (20); and a heating element (32) configured to heat the one-way valve (31), wherein an air inlet end of the one-way valve (31) is communicated with the outside of the box body (10), and an air outlet end is communicated with the inside of the box body (10). The embodiments of the present disclosure can reduce the failure risk of the air pressure balancing device caused by condensation.

Description

Technical Field

[0001] The present disclosure relates to the field of refrigeration technology, and particularly to a refrigeration device. Background Art

[0002] A freezer, also known as a refrigerated cabinet or cold storage cabinet, can store various foods, medicines, etc. in a low-temperature manner. Due to the temperature difference between the inside and outside of the freezer, the temperature difference causes the air pressure inside the freezer to be lower than the outside air pressure, resulting in difficulty in opening the cabinet door. To overcome this problem, in some related technologies, a simple air pressure balance device is installed on the cabinet door of the freezer. This air pressure balance device introduces the outside air into the freezer to achieve the air pressure balance effect. Summary of the Invention

[0003] The inventors have found through research that the outside air introduced by the air pressure balance device in the related technology is higher in temperature than the inside of the freezer. Therefore, condensation is likely to occur in or near the air pressure balance device. When the condensation freezes at a low temperature, it may cause the air pressure balance device to fail. Moreover, the air pressure balance device is usually a one-way valve made of a material with good thermal conductivity such as metal. This structure and material are prone to form a cold bridge, resulting in leakage of the cold quantity of the freezer.

[0004] In view of this, embodiments of the present disclosure provide a refrigeration device that can reduce the risk of failure of the air pressure balance device caused by condensation.

[0005] In one aspect of the present disclosure, there is provided a refrigeration device, including:

[0006] A box body having a refrigeration cavity inside;

[0007] A door body that is openably and closably provided on the box body;

[0008] A one-way valve provided on the door body; and

[0009] A heating element configured to heat the one-way valve,

[0010] wherein the intake end of the one-way valve is communicated with the outside of the box body, and the outlet end is communicated with the inside of the box body.

[0011] In some embodiments, the refrigeration device further includes:

[0012] A heat insulation sleeve provided on the door body and sleeved outside the one-way valve and the heating element.

[0013] In some embodiments, the door body includes an inner door panel, an outer door panel, and a door core provided between the inner door panel and the outer door panel. The door body has a through hole passing through the door core, and the heat insulation sleeve is provided in the through hole.

[0014] In some embodiments, the refrigeration device further includes:

[0015] A sealing ring, which is communicated with the air outlet end of the one-way valve and forms a concave cavity on one side of the door body adjacent to the refrigeration cavity.

[0016] In some embodiments, the refrigeration device further includes:

[0017] A heat insulation sleeve, which is arranged on the door body and sleeved outside the one-way valve and the heating element;

[0018] An end cover, which is arranged on the side of the door body away from the refrigeration cavity and has a ventilation hole communicated with the air inlet end of the one-way valve,

[0019] wherein, both ends of the heat insulation sleeve abut between the sealing ring and the end cover.

[0020] In some embodiments, the refrigeration device further includes:

[0021] A connecting pipe, which is connected between the sealing ring and the air outlet end of the one-way valve.

[0022] In some embodiments, the concave cavity formed by the sealing ring is conical.

[0023] In some embodiments, the materials of the connecting pipe and the sealing ring are hard heat-conducting materials.

[0024] In some embodiments, the refrigeration device further includes:

[0025] A display module, which is arranged on the side of the door body away from the refrigeration cavity;

[0026] A shielding mechanism, which is arranged on the door body and located between the display module and the air inlet end of the one-way valve,

[0027] wherein, the shielding mechanism forms a gap with the door body, the display module has an air flow channel communicated with the gap, and the orthographic projection of the air inlet end of the one-way valve on the door body is located within the orthographic projection of the shielding mechanism on the door body.

[0028] In some embodiments, the door body includes: an inner door panel, an outer door panel and a door core arranged between the inner door panel and the outer door panel. The surface of the door core adjacent to the outer door panel has a counterbore, and the counterbore and the outer door panel form an installation cavity;

[0029] The refrigeration device further includes: an end cap disposed in the counterbore, the end cap having a vent hole communicating with the intake end of the one-way valve; one end of the baffle is fixedly connected in the counterbore, and the gap is formed between the other end of the baffle and the bottom of the counterbore; the orthographic projection of the counterbore on the outer door panel is located within the orthographic projection of the display module on the outer door panel.

[0030] In some embodiments, the heating element is electrically connected to the circuit board of the display module.

[0031] In some embodiments, the refrigeration cavity has a plurality of partition cavities, and the box body further includes a door located on the opening side of each partition cavity, and the door is located between the partition cavity and the door body.

[0032] In some embodiments, the heating element includes an electric heater, and the electric heater is disposed on the one-way valve and contacts the outer shell of the one-way valve.

[0033] Therefore, according to the embodiments of the present disclosure, the air pressure inside and outside the box is balanced through the one-way valve disposed on the door body, and the one-way valve is heated by the heating element, so that the one-way valve is not likely to generate condensation, and even if there is condensation, it will not freeze, thereby avoiding the failure risk caused by condensation and icing of the one-way valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings forming a part of the specification depict embodiments of the present disclosure and, together with the description, are used to explain the principles of the present disclosure.

[0035] Referring to the drawings, the present disclosure can be more clearly understood from the following detailed description, wherein:

[0036] Figure 1 is a schematic structural diagram of a partial cross-section according to some embodiments of the refrigeration device of the present disclosure;

[0037] Figure 2 is Figure 1 an enlarged schematic view of the partial cross-section part A;

[0038] Figure 3 is Figure 2 an enlarged schematic view of the elliptical region B in;

[0039] It should be understood that the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and in no way limits the present disclosure or its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, the components of materials, numerical expressions and values set forth in these embodiments should be construed as merely exemplary and not as limitations.

[0041] The terms "first", "second" and similar terms used in the present disclosure do not denote any order, quantity or importance, but are only used to distinguish different parts. Words such as "comprising" or "including" mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements. Terms such as "upper", "lower", "left", "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0042] In the present disclosure, when it is described that a specific device is located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device. When it is described that a specific device is connected to other devices, the specific device may be directly connected to the other devices without an intermediate device, or may not be directly connected to the other devices but have an intermediate device.

[0043] All terms used in the present disclosure (including technical terms or scientific terms) have the same meaning as understood by those of ordinary skill in the art to which the present disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary such as should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and should not be interpreted in an idealized or overly formal sense unless specifically defined as such here.

[0044] Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods and devices should be regarded as part of the specification.

[0045] Figure 1 is a schematic structural view of a partial cross-section of a refrigeration device according to some embodiments of the present disclosure. Figure 2 is Figure 1 an enlarged schematic view of the partial cross-section A. Figure 3 is Figure 2 an enlarged schematic view of the elliptical region B in Figure 1, an embodiment of the refrigeration device provided by the present disclosure includes a box body 10 and a door body 20. The interior of the box body 10 has a refrigerating cavity for refrigerating various items, such as food and medicine. The operating temperature of the refrigerating cavity is usually lower than the ambient temperature outside the box body 10. The refrigerating cavity of the box body 10 has an opening side for taking and placing items. Refer to Figure 2 , at least one layer of shelves 12 can be arranged in the refrigerating cavity for storing items in layers. The refrigerating cavity can be an integral cavity or can be formed into multiple partition cavities through partition members.

[0046] The door body 20 is disposed on the box body 10 in an openable and closable manner. Specifically, the door body 20 can be hinged to at least one side frame on the opening side of the box body 10. The refrigeration device can include a single-sided opening door body 20 or can include two opposite-opening door bodies 20. In order to improve the sealing performance of the refrigerating cavity after closing the door, a door seal 24 can also be arranged at the position where the door body 20 is close to the box body 10.

[0047] To solve the problem of air pressure imbalance caused by the temperature difference between the inside and outside of the refrigeration device, the refrigeration device of this embodiment further includes: a one-way valve 31 and a heating element 32. The one-way valve 31 is disposed on the door body 20. The air inlet end of the one-way valve 31 is communicated with the outside of the box body 10, and the air outlet end is communicated with the inside of the box body 10. Based on the one-way conduction function of the one-way valve 31, when the air pressure at the air outlet end of the one-way valve 31 is lower than the air pressure at the air inlet end, the one-way valve conducts, and at this time, the air outside the door body 20 can flow in through the air inlet end of the one-way valve 31, then flow into the inner side of the door body through the air outlet end of the one-way valve 32, and enter the refrigerating cavity, thereby effectively balancing the internal and external air pressures of the refrigeration device and avoiding the problem of difficult door opening caused by the air pressure difference.

[0048] The air flowing through the one-way valve 31 is likely to condense inside the one-way valve or at the end of the one-way valve due to the low temperature of the refrigerating cavity. The heating element 32 of this embodiment is configured to heat the one-way valve 31 so that the temperature of the one-way valve 31 can be increased, so that the one-way valve is not likely to generate condensation and will not generate a cold bridge. Even if condensation occurs on the one-way valve 31, it will not freeze due to the temperature of the one-way valve 31, thereby avoiding the risk of failure of the one-way valve 31 caused by condensation and icing.

[0049] Considering the structural compactness, in some embodiments, the heating element 32 can include an electric heater, and the electric heater is disposed on the one-way valve 31 and contacts the outer shell of the one-way valve 31. The electric heater can be electrically connected to the power supply of the refrigeration device so as to keep the one-way valve 31 in a heated state when the refrigeration device is working. The electric heater can be heated by means such as resistance, induction, and infrared heating.

[0050] In other embodiments, the heating element 32 may also adopt other forms. For example, hot air is introduced to the position where the one-way valve 31 is located, or the one-way valve 31 is heated through a heat exchange element, etc.

[0051] Reference Figure 2 and Figure 3 , in some embodiments, the refrigeration device further includes: a heat insulation sleeve 33. The heat insulation sleeve 33 is disposed on the door body 20 and sleeved outside the one-way valve 31 and the heating element 32. Considering that the door body of the refrigeration device often uses a foam material that is not resistant to high temperatures, in order to prevent the door body from deforming after being heated, the heat insulation sleeve 33 can isolate the heat emitted by the heating element 32 from other parts of the door body. In addition, the heat insulation sleeve 33 can also form an installation space for the one-way valve 31 and the heating element 32, thereby facilitating the installation of the one-way valve 31 and the heating element 32 on the door body 20.

[0052] To achieve a good heat insulation effect, the heat insulation sleeve 33 can be made of a polymer material, such as random copolymer polypropylene (PPR). PPR has good heat insulation performance and certain hardness and strength. For the method of forming the door body by filling foam material, the heat insulation sleeve 33 made of this material can withstand the extrusion pressure during the foaming of the door body and is not easily deformed. The heat insulation sleeve 33 can adopt a structural form such as a round tube, a square tube or other cross-sectional shapes.

[0053] In Figure 2 , the door body 20 may include: an inner door panel 21, an outer door panel 22, and a door core 23 disposed between the inner door panel 21 and the outer door panel 22. The door body 20 has a through hole 231 penetrating through the door core 23, and the heat insulation sleeve 33 is disposed in the through hole 231. The inner door panel 21 and the outer door panel 22 can be connected by an extrusion strip to form the external structure of the door body, and the door core 23 located between the inner door panel 21 and the outer door panel 22 can be filled with a foam material. Both the inner door panel 21 and the outer door panel 22 can be made of sheet metal parts, and the extrusion strip can be made of injection molded parts.

[0054] Reference Figure 2 and Figure 3 , in some embodiments, the refrigeration device further includes: a sealing ring 34. The sealing ring 34 communicates with the air outlet end of the one-way valve 31 and forms a concave cavity C1 on the side of the door body 20 adjacent to the refrigeration cavity. The sealing ring 34 can achieve a sealed connection between the air outlet end of the one-way valve 31 and the inner side wall of the door body (such as the inner door panel 21). The sealing ring 34 forms a concave cavity C1 at the position corresponding to the outlet end of the one-way valve 31 between the door body 20 and the box body 10. When the heating element 32 fails, since the sealing ring 34 realizes a relatively large concave space, condensation is difficult to fill the concave cavity C1, and even if it freezes, it is not easy to cause the problem that the door body freezes and adheres and is difficult to open.

[0055] exist Figure 3 In the embodiment, the inner concave cavity C1 formed by the sealing ring 34 may be in the form of a conical surface 341, which is conducive to the condensation flowing downward and avoids the accumulation of condensed water in the inner concave cavity C1.

[0056] refer to Figure 2 In some embodiments, the refrigeration device further includes: a connecting pipe 36 connected between the sealing ring 34 and the air outlet end of the one-way valve 31. The connecting pipe 36 and the sealing ring 34 can both be made of hard heat-conducting materials with good thermal conductivity and certain strength and rigidity, such as metals such as copper, aluminum, iron, or alloy materials such as stainless steel. When the heating element 32 heats the one-way valve 31, the one-way valve 31 can continue to maintain a relatively high temperature state, and the heat on the one-way valve 31 can be quickly transferred to the connecting pipe 36 and the sealing ring 34, thereby transferring the condensation and freezing area from the one-way valve 31 to the side of the sealing ring 34 away from the one-way valve 31, avoiding condensation and freezing of the one-way valve 31 itself, thereby ensuring the effectiveness and stability of the air pressure balancing effect of the one-way valve 31.

[0057] refer to Figure 2 In some embodiments, the refrigeration device further includes: an insulating sleeve 33 and an end cover 35. The insulating sleeve 33 is disposed on the door body 20 and is sleeved outside the one-way valve 31 and the heating element 32. The end cover 35 is disposed on a side of the door body 20 away from the refrigeration cavity and has an air vent connected to the air inlet end of the one-way valve 31. Both ends of the insulating sleeve 33 abut between the sealing ring 34 and the end cover 35.

[0058] In this embodiment, the sealing ring 34, the heat insulating sleeve 33 and the end cover 35 together form an installation space for the one-way valve 31 and the heating element 32, and the end cover 35 and the sealing ring 34 form a stable support at both ends of the one-way valve 31. The end cover 35 can be made of a material with a certain strength and rigidity, such as an alloy material such as stainless steel.

[0059] exist Figure 3 In the embodiment, the sealing ring 34 has a closed annular or non-closed annular raised portion 342 protruding toward the end cover 35 on one side thereof adjacent to the end cover 35. The raised portion 342 can support one end of the heat insulating sleeve 33. The end cover 35 has a concave closed annular or non-closed annular recessed portion 351 on one side thereof adjacent to the sealing ring 34. The recessed portion 351 can support the other end of the heat insulating sleeve 33. In this way, a gap can be formed between the heat insulating sleeve 33 and the through hole 231 of the door core 23, further improving the heat insulating effect.

[0060] exist Figure 2 and Figure 3Among them, the refrigeration device further includes: a display module 40 and a shielding mechanism. The display module 40 is arranged on the side of the door body 20 away from the refrigeration cavity and can be used to display relevant data of the refrigeration device. The shielding mechanism is arranged on the door body 20 and is located between the display module 40 and the intake end of the one-way valve 31. The shielding mechanism and the door body 20 form a gap C3. The display module 40 has an air flow channel communicating with the gap C3. The orthographic projection of the intake end of the one-way valve 31 on the door body 20 is located within the orthographic projection of the shielding mechanism on the door body 20.

[0061] When the one-way valve 31 fails for some reason, the shielding mechanism can block the cold air flow discharged from the inlet end of the one-way valve 31 to prevent the cold air flow from meeting the external air at the back of the display module 40 and condensing, thereby causing the risk of short circuit of the display module.

[0062] In some embodiments, the heating element 32 is electrically connected to the circuit board of the display module 40, which facilitates the arrangement of the power supply wiring of the heating element. Additionally, referring to Figure 3 the air flow direction shown by the dotted arrow in the figure, the air outside the door body 20 can flow into the one-way valve 31 through the air flow channel and the gap C3 of the display module 30 in sequence, and then flow into the inner side of the door body 20 through the one-way valve 31. These flowing air currents can air-cool devices such as the circuit board of the display module 40 and reduce its temperature.

[0063] For the embodiment in which the door body 20 includes: a door inner plate 21, a door outer plate 22, and a door core 23 arranged between the door inner plate 21 and the door outer plate 22, the surface of the door core 23 adjacent to the door outer plate 22 may have a counterbore 232, and the counterbore 232 and the door outer plate 22 form an installation cavity C2. The refrigeration device further includes: an end cap 35 arranged in the counterbore 232, and the end cap 35 has a ventilation hole communicating with the intake end of the one-way valve 31. One end of the baffle 37 is fixedly connected in the counterbore 232. The gap C3 is formed between the other end of the baffle 37 and the bottom of the counterbore 232. The orthographic projection of the counterbore 232 on the door outer plate 22 is located within the orthographic projection of the display module 40 on the door outer plate 22.

[0064] The depth of the installation cavity C2 formed by the counterbore 232 is greater than the thickness of the end cap 35 and also greater than the height of the baffle 37 relative to the bottom of the counterbore 232, so that this area will not bulge outward and make the appearance of the refrigeration device more consistent. The baffle 37 can be a sheet metal part bent twice, with one end fixedly connected to the bottom of the counterbore 232 and the other end suspended to form the gap C3.

[0065] Considering that when the user opens the door body 20, it is easy to cause a large amount of cold loss in the refrigeration cavity, referring toFigure 2 , in some embodiments, the refrigerating cavity has a plurality of partition cavities, and the box body 10 further includes doors 11 located on the opening sides of the respective partition cavities, and the doors 11 are located between the partition cavities and the door body 20. These doors 11 can block the cold air in the corresponding partition cavities, avoiding the problems of rapid loss of cold quantity and temperature change of the freezer caused by the direct communication between the outside of the box body and the refrigerating cavity when the door body 20 is opened, and reducing or eliminating the adverse effects of the door opening process on the refrigerated items.

[0066] The above refrigeration equipment can be a refrigerator, a freezer, or a cold storage in the form of a building. For a cold storage, the wall of the cold storage is the box body.

[0067] So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details well known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed here based on the above description.

[0068] Although some specific embodiments of the present disclosure have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for the purpose of illustration and not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be equivalently replaced without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A refrigeration device, characterized in that, Comprising: A box body (10) having a refrigerating cavity inside; A door body (20) which is openably and closably arranged on the box body (10); A one-way valve (31) arranged on the door body (20); A heating element (32) configured to heat the one-way valve (31), the heating element (32) includes an electric heater, the electric heater is arranged on the one-way valve (31) and contacts the outer shell of the one-way valve (31); and A heat insulation sleeve (33) arranged on the door body (20) and sleeved outside the one-way valve (31) and the heating element (32) to form an installation space for the one-way valve (31) and the heating element (32), and to isolate the heat emitted by the heating element (32) from other parts of the door body (20); Wherein, the air inlet end of the one-way valve (31) communicates with the outside of the box body (10), and the air outlet end communicates with the inside of the box body (10).

2. The refrigeration device according to claim 1, characterized in that The door body (20) includes: an inner door panel (21), an outer door panel (22) and a door core (23) arranged between the inner door panel (21) and the outer door panel (22), the door body (20) has a through hole (231) penetrating through the door core (23), and the heat insulation sleeve (33) is arranged in the through hole (231).

3. The refrigeration device according to claim 1, characterized in that, Further comprising: A sealing ring (34) communicating with the air outlet end of the one-way valve (31) and forming a concave cavity (C1) on one side of the door body (20) adjacent to the refrigerating cavity.

4. The refrigeration device according to claim 3, wherein, Further comprising: A heat insulation sleeve (33) arranged on the door body (20) and sleeved outside the one-way valve (31) and the heating element (32); An end cover (35) arranged on the side of the door body (20) away from the refrigerating cavity and having a ventilation hole communicating with the air inlet end of the one-way valve (31), Wherein, both ends of the heat insulation sleeve (33) abut between the sealing ring (34) and the end cover (35).

5. The refrigeration device according to claim 3, characterized in that Further comprising: A connecting pipe (36) connected between the sealing ring (34) and the air outlet end of the one-way valve (31).

6. The refrigeration device according to claim 3, characterized in that The concave cavity (C1) formed by the sealing ring (34) is in a conical surface (341).

7. The refrigeration device according to claim 5, characterized in that, The materials of the connecting pipe (36) and the sealing ring (34) are hard heat-conducting materials.

8. The refrigeration device according to claim 1, wherein, Further comprising: A display module (40) arranged on the side of the door body (20) away from the refrigerating cavity; A shielding mechanism arranged on the door body (20) and located between the display module (40) and the air inlet end of the one-way valve (31), Wherein, the shielding mechanism and the door body (20) form a gap (C3), the display module (40) has an air flow channel communicating with the gap (C3), and the orthographic projection of the air inlet end of the one-way valve (31) on the door body (20) is located within the orthographic projection of the shielding mechanism on the door body (20).

9. The refrigeration device according to claim 8, characterized in that, The door body (20) includes: an inner door panel (21), an outer door panel (22), and a door core (23) disposed between the inner door panel (21) and the outer door panel (22). A counterbore (232) is formed on the surface of the door core (23) adjacent to the outer door panel (22), and the counterbore (232) and the outer door panel (22) form an installation cavity (C2). The refrigeration device further includes: an end cap (35) disposed in the counterbore (232), the end cap (35) having a vent hole communicating with the intake end of the one-way valve (31); one end of a baffle (37) is fixedly connected in the counterbore (232), and a gap (C3) is formed between the other end of the baffle (37) and the bottom of the counterbore (232); the orthographic projection of the counterbore (232) on the outer door panel (22) is located within the orthographic projection of the display module (40) on the outer door panel (22).

10. The refrigeration device according to claim 8, characterized in that, The heating element (32) is electrically connected to the circuit board of the display module (40).

11. The refrigeration device according to claim 1, characterized in that, The refrigeration cavity has a plurality of partition cavities, and the box body (10) further includes a door (11) located on the opening side of each partition cavity, and the door (11) is located between the partition cavity and the door body (20).

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