CN216897960U - Refrigeration appliance - Google Patents

Abstract

The present disclosure relates to a refrigeration appliance comprising: a box body (10) with a refrigeration cavity inside; a door (20) which is provided on the box (10) in an openable and closable manner; a check valve (31) provided on the door body (20); and a heating element (32) configured to heat the check valve (31), wherein an air inlet end of the check 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 embodiment of the disclosure can reduce the failure risk of the air pressure balancing device caused by condensation.

Description

Refrigeration appliance

Technical Field

The disclosure relates to the technical field of refrigeration, in particular to a refrigeration device.

Background

The refrigerator is also called as a freezer or a refrigerator, and can store various foods, medicines and the like in a low-temperature mode. Because there is the temperature difference inside and outside the freezer, the temperature difference has leaded to the inside atmospheric pressure of freezer to be less than outside atmospheric pressure to cause the problem that the cabinet door opened the difficulty. In order to overcome this problem, in some related technologies, a simple air pressure balancing device is installed on a door body of the refrigerator. The air pressure balancing device leads the air outside the refrigerator into the refrigerator to realize the air pressure balancing effect.

SUMMERY OF THE UTILITY MODEL

The inventor has found that the air pressure balancing device in the related art introduces the outside air having a higher temperature than the inside of the refrigerator, and therefore the condensation is easily generated in or near the air pressure balancing device, which may cause the air pressure balancing device to fail when the condensation freezes in a low temperature state. Moreover, the air pressure balancing device is usually a one-way valve made of metal and other materials with good heat conductivity, and the structure and the materials are easy to form a cold bridge, so that the cold quantity of the refrigerator is leaked.

In view of this, the embodiments of the present disclosure provide a refrigeration apparatus, which can reduce the risk of failure of the air pressure balancing device due to condensation.

In one aspect of the present disclosure, there is provided a refrigerator including:

a box body, the interior of which is provided with a refrigeration cavity;

the door body is arranged on the box body in an openable and closable manner;

the one-way valve is arranged on the door body; and

a heating element configured to heat the one-way valve,

the air inlet end of the one-way valve is communicated with the outside of the box body, and the air outlet end of the one-way valve is communicated with the inside of the box body.

In some embodiments, the refrigeration appliance further comprises:

and the heat insulation sleeve is arranged on the door body and sleeved outside the one-way valve and the heating element.

In some embodiments, the door body includes: the door body is provided with a through hole penetrating through the door core, and the heat insulation sleeve is arranged in the through hole.

In some embodiments, the refrigeration appliance further comprises:

and the sealing ring is communicated with the air outlet end of the one-way valve, and an inwards concave cavity is formed at one side of the door body, which is adjacent to the refrigerating cavity.

In some embodiments, the refrigeration appliance further comprises:

the heat insulation sleeve is arranged on the door body and sleeved outside the one-way valve and the heating element;

the end cover is arranged on one side of the door body, which is far away from the refrigerating cavity, and is provided with a vent hole communicated with the air inlet end of the one-way valve,

wherein, the two ends of the heat insulation sleeve are abutted between the sealing ring and the end cover.

In some embodiments, the refrigeration appliance further comprises:

and the connecting pipe is connected between the sealing ring and the air outlet end of the one-way valve.

In some embodiments, the concave cavity formed by the seal ring is tapered.

In some embodiments, the material of the connecting tube and the sealing ring is hard heat conducting material.

In some embodiments, the refrigeration appliance further comprises:

the display module is arranged on one side of the door body, which is far away from the refrigerating cavity;

the shielding mechanism is arranged on the door body and is positioned between the display module and the air inlet end of the one-way valve,

the shielding mechanism and the door body form a gap, the display module is provided with 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 positioned in the orthographic projection of the shielding mechanism on the door body.

In some embodiments, the door body includes: the door comprises a door body inner plate, a door body outer plate and a door core arranged between the door body inner plate and the door body outer plate, wherein a counter bore is formed in the surface of one side, adjacent to the door body outer plate, of the door core, and the counter bore and the door body outer plate form an installation cavity;

the refrigeration apparatus further includes: an end cap disposed within the counter bore, the end cap having a vent hole in communication with an air inlet end of the one-way valve; one end of the baffle is fixedly connected in the counter bore, and the gap is formed between the other end of the baffle and the bottom of the counter bore; the orthographic projection of the counter bore on the door body outer plate is positioned in the orthographic projection of the display module on the door body outer plate.

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

In some embodiments, the refrigeration cavity has a plurality of compartments, and the cabinet further includes a door at an open side of each compartment, the door being positioned between the compartment and the door body.

In some embodiments, the heating element comprises an electric heater disposed on the one-way valve and in contact with a housing of the one-way valve.

Therefore, according to the embodiment of the disclosure, the one-way valve arranged on the door body is used for balancing air pressure inside and outside the door body, and is heated by the heating element, so that the one-way valve is not easy to generate condensation, and the freezing of the condensation can be avoided even if the condensation exists, and the failure risk caused by the freezing of the condensation of the one-way valve is avoided.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

The present disclosure may be more clearly understood from the following detailed description, taken with reference to the accompanying drawings, in which:

FIG. 1 is a schematic illustration in partial cutaway of some embodiments of a refrigeration unit according to the present disclosure;

FIG. 2 is an enlarged schematic view of a partially cut-away portion A of FIG. 1;

fig. 3 is an enlarged schematic view of the oval region B in fig. 2.

It should be understood that the dimensions of the various parts shown in the figures are not drawn to scale. Further, the same or similar reference numerals denote the same or similar components.

Detailed Description

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 is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.

The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be intervening devices between the specific device and the first device or the second device. When a particular device is described as being coupled to another device, it can be directly coupled to the other device without intervening devices or can be directly coupled to the other device with intervening devices.

All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

Figure 1 is a schematic illustration in partial cutaway of some embodiments of a refrigeration unit according to the present disclosure. Fig. 2 is an enlarged schematic view of a partially cut-away portion a of fig. 1. Fig. 3 is an enlarged schematic view of the oval region B in fig. 2. Referring to fig. 1, the embodiment of the refrigeration apparatus provided by the present disclosure includes a cabinet 10 and a door 20. The cabinet 10 has a refrigerating cavity therein for refrigerating various items such as food, medicine, etc. The refrigeration cavity is typically operated at a temperature lower than the ambient temperature outside of the cabinet 10. The refrigerated cavity of the box 10 has an open side for access to the items. Referring to fig. 2, at least one shelf 12 may be provided within the refrigeration cavity to store items in layers. The refrigerating cavity can be a one-piece cavity, and a plurality of partitioned cavities can be formed by the partitions.

The door 20 may be openably and closably provided on the cabinet 10, and in particular, the door 20 may be hinged on at least one side frame of the opening side of the cabinet 10. The refrigeration device may include one door 20 opened at one side, or may include two door 20 opened in opposite directions. In order to improve the sealing performance of the refrigerating cavity after the door is closed, a door seal 24 may be provided at a position where the door 20 is close to the cabinet 10.

In order to solve the unbalanced problem of atmospheric pressure that leads to because of the difference in temperature in the refrigeration plant, the refrigeration plant of this embodiment still includes: a one-way valve 31 and a heating element 32. The check valve 31 is disposed on the door 20, an air inlet end of the check valve 31 is communicated with the outside of the box 10, and an air outlet end of the check valve 31 is communicated with the inside of the box 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 is conducted, and at the moment, 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 refrigeration cavity, so that the internal and external air pressures of the refrigeration equipment are effectively balanced, and the problem of difficulty in opening the door due to air pressure difference is avoided.

The air flowing through the check valve 31 is easily condensed inside the check valve or at the end of the check valve due to the low temperature of the refrigerating cavity, and the heating element 32 of the present embodiment is configured to heat the check valve 31 so as to raise the temperature of the check valve 31, so that the check valve is not easily condensed and a cold bridge is not generated. Even if the dew condenses on the check valve 31, the dew will not freeze due to the temperature of the check valve 31, thereby avoiding the risk of failure of the check valve 31 due to freezing of the dew.

In view of the compactness of the structure, in some embodiments, the heating element 32 may comprise an electric heater disposed on the check valve 31 and in contact with the housing of the check valve 31. The electric heater may be electrically connected to the power supply of the refrigeration appliance to maintain the check valve 31 in a heated state while the refrigeration appliance is operating. The electric heater can be heated by adopting resistance, induction, infrared heating and other modes.

In other embodiments, the heating element 32 may take other forms, such as by introducing hot air to the location of the check valve 31, or by heating the check valve 31 with a heat exchange element, etc.

Referring to fig. 2 and 3, in some embodiments, the refrigeration appliance further comprises: an insulating sleeve 33. The heat insulation sleeve 33 is arranged 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 equipment often uses a foaming material which is not resistant to high temperature, in order to avoid the deformation of the door body 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 insulating sleeve 33 can form an installation space for the check valve 31 and the heating element 32, thereby facilitating the installation of the check valve 31 and the heating element 32 on the door body 20.

In order to achieve good thermal insulation, the thermal sleeve 33 may be made of a polymer material, such as polypropylene random copolymer (PPR). The PPR has good heat insulation performance, and has certain hardness and strength. In the case of the method of forming a door body by filling a foam material, the heat insulating sleeve 33 made of such a material can withstand the pressing force when the door body is foamed, and is less likely to deform. The insulating sleeve 33 may be in the form of a circular tube, a square tube or other cross-sectional shapes.

In fig. 2, the door body 20 may include: the door body comprises a door body inner plate 21, a door body outer plate 22 and a door core 23 arranged between the door body inner plate 21 and the door body outer plate 22. The door body 20 has a through hole 231 penetrating the door core 23, and the heat insulating sleeve 33 is disposed in the through hole 231. The door inner panel 21 and the door outer panel 22 may be connected by an extrusion molding to form an outer structure of the door, and the door core 23 located between the door inner panel 21 and the door outer panel 22 may be filled with a foaming material. The door body inner plate 21 and the door body outer plate 22 can be made of sheet metal parts, and the extrusion molding strip can be made of injection molding parts.

Referring to fig. 2 and 3, in some embodiments, the refrigeration appliance further comprises: and a seal ring 34. The sealing ring 34 is communicated with the air outlet end of the one-way valve 31, and a concave cavity C1 is formed on one side of the door body 20 adjacent to the refrigerating cavity. The sealing ring 34 can realize the sealing connection between the air outlet end of the one-way valve 31 and the inner side wall of the door body (such as the door body inner plate 21). The sealing ring 34 forms a concave cavity C1 between the door body 20 and the cabinet 10 corresponding to the outlet end of the one-way valve 31, when the heating element 32 fails, because the sealing ring 34 realizes a relatively large concave space, the concave cavity C1 is difficult to be filled with condensation, and even freezing does not easily cause the problem that the door body is frozen and bonded and is difficult to open.

In fig. 3, the concave cavity C1 formed by the sealing ring 34 may be tapered 341 to facilitate the downward flow of the condensed water and avoid the accumulation of condensed water in the concave cavity C1.

Referring to fig. 2, in some embodiments, the refrigeration appliance further comprises: and a connection pipe 36 connected between the packing 34 and the outlet end of the check valve 31. The connecting tube 36 and the sealing ring 34 may be made of a hard heat conductive material with good heat conductivity and certain strength and rigidity, such as a metal like copper, aluminum, iron, or an alloy material like stainless steel. When the heating element 32 heats the check valve 31, the check valve 31 can be continuously maintained in a relatively high temperature state, and the heat on the check valve 31 can be rapidly transferred to the connecting pipe 36 and the sealing ring 34, so that the condensation and freezing area is transferred from the check valve 31 to the side of the sealing ring 34 far away from the check valve 31, the condensation and freezing of the check valve 31 are avoided, and the effective and stable air pressure balance effect of the check valve 31 is ensured.

Referring to fig. 2, in some embodiments, the refrigeration appliance further comprises: an insulating sleeve 33 and an end cap 35. The heat insulation sleeve 33 is arranged on the door body 20 and sleeved outside the one-way valve 31 and the heating element 32. The end cover 35 is arranged on one side of the door body 20 far away from the refrigerating cavity and is provided with a vent hole communicated with the air inlet end of the one-way valve 31. The two ends of the insulating sleeve 33 abut between the sealing ring 34 and the end cap 35.

In this embodiment, the sealing ring 34, the heat insulating sleeve 33 and the end cap 35 together form an installation space for the check valve 31 and the heating element 32, and the end cap 35 and the sealing ring 34 form a stable supporting function at both ends of the check valve 31. The end cap 35 may be made of a material having certain strength and rigidity, such as an alloy material, e.g., stainless steel.

In fig. 3, the side of the sealing ring 34 adjacent to the end cap 35 has a closed annular or non-closed annular protrusion 342 protruding towards the end cap 35. The boss 342 can support one end of the heat insulating sleeve 33. The side of the end cap 35 adjacent the seal ring 34 has a recessed closed annular or non-closed annular recess 351. The concave portion 351 can support the other end of the heat insulating sleeve 33. This allows a gap to be formed between the heat insulating sleeve 33 and the through hole 231 of the door core 23, thereby further improving the heat insulating effect.

In fig. 2 and 3, the refrigerating apparatus further includes: a display module 40 and a shutter mechanism. The display module 40 is disposed on a side of the door 20 away from the refrigerating cavity, and can be used for displaying data related to the refrigerating device. The shielding mechanism is arranged on the door body 20 and is positioned between the display module 40 and the air inlet end of the one-way valve 31. The shielding mechanism and the door 20 form a gap C3, the display module 40 has an air flow passage communicating with the gap C3, and the orthographic projection of the air inlet end of the one-way valve 31 on the door 20 is located in the orthographic projection of the shielding mechanism on the door 20.

When the check valve 31 is failed for some reason, the shielding mechanism can shield the cold airflow discharged from the inlet end of the check valve 31, so as to prevent the cold airflow from condensing at the back of the display module 40 due to the intersection with the outside air, thereby preventing the risk of short circuit of the display module.

In some embodiments, the heating element 32 is electrically connected to a circuit board of the display module 40, thereby facilitating the electrical wiring arrangement for the heating element. In addition, referring to the airflow direction shown by the dotted arrow in fig. 3, the air outside the door 20 may sequentially flow into the check valve 31 through the air flow passage of the display module 30 and the slit C3, and then flow into the inside of the door 20 through the check valve 31. These air flows can cool the devices such as the circuit board of the display module 40 to reduce the temperature thereof.

The door body 20 includes: in the embodiments of the door body inner plate 21, the door body outer plate 22 and the door core 23 disposed between the door body inner plate 21 and the door body outer plate 22, the surface of the door core 23 adjacent to one side of the door body outer plate 22 may have a counter bore 232, and the counter bore 232 and the door body outer plate 22 form a mounting cavity C2. The refrigeration appliance further comprises: an end cap 35 disposed within the counterbore 232, the end cap 35 having a vent hole in communication with the air inlet 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 plate 37 and the bottom of the counterbore 232. The orthographic projection of the counter bore 232 on the door body outer plate 22 is positioned in the orthographic projection of the display module 40 on the door body outer plate 22.

The counterbore 232 defines a mounting cavity C2 having a depth greater than the thickness of the end cap 35 and greater than the height of the baffle 37 relative to the bottom of the counterbore 232 hole so that the area does not bulge out to make the refrigerator more visually consistent in appearance. Baffle 37 may be a double-bent sheet metal piece having one end fixedly attached to the bottom of counterbore 232 and the other end suspended to form gap C3.

Considering that a user can easily cause a large amount of cold dissipation in the refrigerating cavity when opening the door 20, referring to fig. 2, in some embodiments, the refrigerating cavity has a plurality of compartments, and the cabinet 10 further includes a door 11 located at an opening side of each compartment, and the door 11 is located between the compartment and the door 20. The doors 11 can block cold air in the corresponding separation cavities, so that the problems of quick loss of cold energy and temperature change of the refrigerator caused by direct communication between the outer side of the refrigerator body and the refrigeration cavity when the door body 20 is opened are solved, and the adverse effect of the door opening process on refrigerated articles is reduced or eliminated.

The refrigerating equipment can be a refrigerator, an ice chest and a cold storage in the form of a building. For a cold storage, the wall of the cold storage is a box body.

Thus, various embodiments of the present disclosure have been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims (13)

1. A refrigeration appliance, comprising:

a box body (10) with a refrigeration cavity inside;

a door (20) which is provided on the box (10) in an openable and closable manner;

a check valve (31) provided on the door body (20); and

a heating element (32) configured to heat the one-way valve (31),

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 of the one-way valve is communicated with the inside of the box body (10).

2. A cold storage appliance according to claim 1, further comprising:

and the heat insulation sleeve (33) is arranged on the door body (20) and sleeved outside the one-way valve (31) and the heating element (32).

3. A refrigerator according to claim 2, wherein the door (20) comprises: the door body inner plate (21), the door body outer plate (22) and set up door core (23) between door body inner plate (21) and door body outer plate (22), the door body (20) have run through-hole (231) of door core (23), heat insulating sleeve (33) set up in through-hole (231).

4. A cold storage appliance according to claim 1, further comprising:

and the sealing ring (34) is communicated with the air outlet end of the one-way valve (31), and an inwards concave cavity (C1) is formed on one side, adjacent to the refrigerating cavity, of the door body (20).

5. A cold storage appliance according to claim 4, further comprising:

the heat insulation sleeve (33) is arranged on the door body (20) and sleeved outside the one-way valve (31) and the heating element (32);

the end cover (35) is arranged on one side of the door body (20) far away from the refrigerating cavity and is provided with a vent hole communicated with the air inlet end of the one-way valve (31),

wherein both ends of the insulating sleeve (33) abut against between the sealing ring (34) and the end cap (35).

6. A cold storage appliance according to claim 4, further comprising:

and the connecting pipe (36) is connected between the sealing ring (34) and the air outlet end of the one-way valve (31).

7. A cold storage device according to claim 4, wherein the sealing ring (34) forms a concave cavity (C1) with a conical surface (341).

8. A cold storage device according to claim 6, wherein the material of the connecting tube (36) and the sealing ring (34) is a hard and thermally conductive material.

9. A cold storage appliance according to claim 1, further comprising:

the display module (40) is arranged on one side, far away from the refrigerating cavity, of the door body (20);

the shielding mechanism is arranged on the door body (20) and is positioned 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) is provided with an air flow passage communicated 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 positioned in the orthographic projection of the shielding mechanism on the door body (20).

10. A refrigerator according to claim 9, wherein the door (20) comprises: the door comprises a door body inner plate (21), a door body outer plate (22) and a door core (23) arranged between the door body inner plate (21) and the door body outer plate (22), wherein a counter bore (232) is formed in the surface, close to one side of the door body outer plate (22), of the door core (23), and a mounting cavity (C2) is formed by the counter bore (232) and the door body outer plate (22);

the refrigeration appliance further comprises: an end cap (35) and a baffle (37) disposed within the counterbore (232), the end cap (35) having a vent communicating with an air intake end of the one-way valve (31); one end of the baffle plate (37) is fixedly connected in the counter bore (232), and a gap (C3) is formed between the other end of the baffle plate (37) and the bottom of the counter bore (232); the orthographic projection of the counter bore (232) on the door body outer plate (22) is positioned in the orthographic projection of the display module (40) on the door body outer plate (22).

11. A cold storage device according to claim 9, wherein the heating element (32) is electrically connected to a circuit board of the display module (40).

12. A cold storage appliance according to claim 1, wherein the cold storage cavity has a plurality of compartments, and the cabinet (10) further comprises a door (11) at the open side of each compartment, the door (11) being located between the compartment and the door body (20).

13. A cold storage device according to claim 1, wherein the heating element (32) comprises an electric heater arranged on the one-way valve (31) and in contact with the housing of the one-way valve (31).

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