CN219390195U - Refrigerating apparatus - Google Patents

Abstract

The utility model belongs to the technical field of refrigeration equipment, and particularly provides refrigeration equipment. The utility model aims to solve the problem that the volume rate of the existing refrigerator is low due to the fact that the outdoor side heat preservation layer of the cryogenic room is thicker. To this end, the refrigeration apparatus of the present utility model includes an apparatus body and a refrigeration system. Wherein, the refrigerating system comprises a cryogenic evaporator and a cold storage evaporator. The equipment body comprises a shell, a deep cooling chamber, a cold storage chamber and at least one cold accumulation cavity. Wherein the cryogenic compartment is cooled by a cryogenic evaporator. The cold storage compartment is cooled by a cold storage evaporator. At least one cold storage chamber is disposed between the housing and the cryogenic compartment and in communication with the cold storage compartment, the at least one cold storage chamber being configured to receive cold air from the cold storage compartment to reduce leakage of cold within the cryogenic compartment to an external environment. The utility model improves the volume of the cryogenic compartment and improves the volume rate of the refrigeration equipment.

Description

Refrigerating apparatus

Technical Field

The utility model belongs to the technical field of refrigeration equipment, and particularly provides refrigeration equipment.

Background

The existing refrigerators generally comprise a refrigerating compartment for keeping food materials fresh at low temperature (typically around 4 ℃) and a freezing compartment for keeping food materials fresh at freezing (typically around-18 ℃). The freezing compartments of the existing refrigerators cannot meet the lower temperature requirement (-40 ℃ below) of special food materials, and for this reason, some refrigerators are also provided with cryogenic compartments which can reach a low temperature environment of-60 ℃.

Because the temperature of the cryogenic compartment is far lower than that of the traditional refrigerating compartment and the freezing compartment, the temperature difference between the cryogenic compartment and the external environment is larger, and the cryogenic compartment is easier to leak cold to the external environment, so that the cryogenic compartment has larger cold leakage capacity to the external environment and influences the refrigeration efficiency of the refrigerator.

To overcome the above-mentioned drawbacks of the refrigerator, the prior art generally performs the cooling of the cryogenic compartment by increasing the thickness of the insulation layer between the cryogenic compartment and the refrigerator housing. However, this results in a smaller volume of the sub-cooled compartment, which reduces the capacity of the refrigerator.

Disclosure of Invention

The utility model aims to solve the problem that the volume rate of the existing refrigerator is low due to the fact that the heat insulation layer of the outdoor side of a cryogenic room is thick.

Another object of the present utility model is to reduce the power consumption of the refrigerator.

In order to achieve the above object, the present utility model provides a refrigeration apparatus, including an apparatus body and a refrigeration system including a cryogenic evaporator and a cold storage evaporator; the device body includes:

a housing;

a cryogenic compartment cooled by the cryogenic evaporator;

a cold storage compartment cooled by the cold storage evaporator;

at least one cold storage chamber disposed between the housing and the cryogenic compartment and in communication with the cold storage compartment, the at least one cold storage chamber for receiving cold air from the cold storage compartment to reduce leakage of cold within the cryogenic compartment to an external environment.

Optionally, the device body further comprises a cold storage refrigeration compartment for placing the cold storage evaporator, and the cold storage refrigeration compartment is communicated with the cold storage compartment; the refrigeration equipment further comprises a cold storage fan, wherein the cold storage fan is used for driving cold air in the cold storage refrigeration compartment to enter the cold storage compartment and the cold storage cavity.

Optionally, the cold accumulation cavity is respectively communicated with the cold storage refrigeration compartment and the cold storage compartment, and the cold storage refrigeration compartment and the cold storage compartment are communicated with each other.

Optionally, an end of the cold accumulation cavity, which is communicated with the cold storage chamber, is located at the top of the cold storage chamber.

Optionally, the left side and the right side of the cryogenic compartment are respectively provided with one cold accumulation cavity.

Optionally, the device body further includes an insulation layer disposed between the housing and the cryogenic compartment, and the cold accumulation cavity is disposed in the insulation layer.

Optionally, the cold storage compartment comprises at least one of a freezer compartment, a refrigerator compartment, and a temperature swing compartment.

Optionally, the device body further comprises a cryogenic refrigeration chamber for placing the cryogenic evaporator, and the cryogenic refrigeration chamber is communicated with the cryogenic compartment; the refrigeration equipment further comprises a deep air cooler, wherein the deep air cooler is used for driving cold air in the deep cooling refrigeration chamber to enter the deep cooling compartment.

Optionally, the refrigeration system comprises a first refrigeration system and a second refrigeration system, the first refrigeration system is used for refrigerating the second refrigeration system, the cold storage evaporator is connected in series into the first refrigeration system, and the cryogenic evaporator is connected in series into the second refrigeration system.

Optionally, the refrigeration device further comprises a damper assembly for controlling whether air flowing through the cold storage compartment flows through the cold storage cavity; the refrigeration device is configured such that,

controlling the damper assembly to transition to a first state in response to the cryogenic evaporator cooling to cause air flowing through the cold storage compartment to flow through the cold accumulation cavity;

and controlling the air door assembly to be switched to a second state in response to the cryogenic evaporator stopping refrigeration for a preset period of time so that air flowing through the cold storage chamber does not flow through the cold storage cavity.

Based on the foregoing, it will be appreciated by those skilled in the art that in the foregoing aspects of the present utility model, by providing at least one cold storage chamber between the housing and the cryogenic compartment and communicating each cold storage chamber with the cold storage compartment, the at least one cold storage chamber is enabled to receive cold air from the cold storage compartment and thus at least a portion of the cryogenic compartment can only transfer cold to the cold storage compartment first and then to the external environment. Therefore, the at least one cold accumulation cavity effectively reduces the leakage of the cold quantity in the cryogenic chamber to the external environment, and plays a role in preserving cold for the cryogenic chamber, so that the excessive thickness of an insulating layer at the outer side of the cryogenic chamber is avoided, the volume of the cryogenic chamber is further improved, and the volume rate of refrigeration equipment is improved.

Further, by configuring the air door assembly for the refrigeration equipment and controlling whether the air flowing through the cold storage compartment flows through the cold accumulation cavity through the air door assembly, the air door assembly is changed into a first state when the cryogenic evaporator is used for refrigerating, so that the air flowing through the cold storage compartment flows through the cold accumulation cavity; when the cryogenic evaporator stops refrigerating for a preset period of time, the air door assembly is controlled to be switched to the second state, so that air flowing through the cold storage chamber does not flow through the cold storage cavity. Therefore, the refrigerating equipment does not store food in the cryogenic compartment, and when refrigeration is not needed, the air flowing through the cold storage compartment does not flow through the cold accumulation cavity, so that ineffective refrigeration of the cryogenic compartment by the refrigerating equipment is avoided, and the energy consumption of the refrigerating equipment is reduced.

The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solution of the present utility model, some embodiments of the present utility model will be described hereinafter with reference to the accompanying drawings. It will be understood by those skilled in the art that components or portions thereof identified in different drawings by the same reference numerals are identical or similar; the drawings of the utility model are not necessarily to scale relative to each other. In the accompanying drawings:

fig. 1 is a schematic view of a construction of a refrigeration apparatus according to an object of the present utility model;

FIG. 2 is a schematic illustration of an isometric effect of a refrigeration appliance according to some embodiments of the present utility model;

FIG. 3 is a schematic cross-sectional view of the refrigeration apparatus of FIG. 2 taken along the direction A-A;

FIG. 4 is a schematic cross-sectional view of the refrigeration apparatus of FIG. 2 taken in the direction B-B;

FIG. 5 is a schematic illustration of the communication of a cold storage compartment, and a cold storage cavity in some embodiments of the utility model;

FIG. 6 is a schematic illustration of the communication of a cold storage compartment, a cold storage compartment and a cold storage chamber in further embodiments of the utility model;

fig. 7 is a schematic diagram of a refrigeration system according to some embodiments of the utility model.

Detailed Description

It should be understood by those skilled in the art that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model, and the some embodiments are intended to explain the technical principles of the present utility model and are not intended to limit the scope of the present utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive effort, based on the embodiments provided by the present utility model, shall still fall within the scope of protection of the present utility model.

It should be noted that, in the description of the present utility model, terms such as "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships, which are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "cold store," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

Further, it should be noted that, in the description of the present utility model, the refrigeration apparatus includes a refrigerator, a freezer, an ice chest, and the like.

As shown in fig. 1, in the present utility model, a refrigeration apparatus 1000 includes an apparatus body 100 and a refrigeration system 200. Wherein the refrigeration system 200 includes a cryogenic evaporator and a cold storage evaporator. The equipment body comprises a shell, a cryogenic chamber, a cold storage refrigeration chamber and at least one cold accumulation cavity. Wherein the cryogenic compartment is cooled by a cryogenic evaporator. The cold storage refrigeration compartment is cooled by the cold storage evaporator. At least one cold accumulation cavity is arranged between the shell and the cryogenic compartment and is communicated with the cold storage refrigeration compartment, and the at least one cold accumulation cavity is used for receiving cold air from the cold storage refrigeration compartment so as to reduce leakage of cold energy in the cryogenic compartment to the external environment.

Wherein the cold storage refrigeration compartment comprises at least one of a freezing compartment, a refrigerating compartment and a temperature changing compartment.

As will be appreciated by those skilled in the art, in the present utility model, by providing at least one cold storage chamber between the housing and the cryogenic compartment and communicating each cold storage chamber with the cold storage refrigeration compartment, the at least one cold storage chamber is enabled to receive cold air from the cold storage refrigeration compartment and thus at least a portion of the cryogenic compartment can only transfer cold to the cold storage refrigeration compartment prior to transfer to the external environment. Therefore, the at least one cold accumulation cavity effectively reduces the leakage of the cold quantity in the cryogenic compartment to the external environment, and plays a role in preserving cold for the cryogenic compartment, so that the excessive thickness of an insulating layer at the outer side of the cryogenic compartment is avoided, the volume of the cryogenic compartment is further improved, and the volume rate of the refrigeration equipment 1000 is improved.

The refrigerating apparatus 1000 of the present utility model will be described in detail with reference to fig. 2 to 7. Wherein fig. 2 is an isometric view of a refrigeration apparatus according to some embodiments of the present utility model, fig. 3 is a schematic view of a cross-sectional effect of the refrigeration apparatus according to fig. 2 along A-A direction, fig. 4 is a schematic view of a cross-sectional effect of the refrigeration apparatus according to fig. 2 along B-B direction, fig. 5 is a schematic view of communication between a cold storage refrigeration compartment, a cold storage refrigeration compartment and a cold storage cavity according to some embodiments of the present utility model, fig. 6 is a schematic view of communication between the cold storage refrigeration compartment, the cold storage refrigeration compartment and the cold storage cavity according to other embodiments of the present utility model, and fig. 7 is a schematic view of a refrigeration system according to some embodiments of the present utility model.

As shown in fig. 2-7, in some embodiments of the present utility model, a refrigeration device 1000 includes a device body 100 and a refrigeration system 200. And, the technical scheme about the refrigerating apparatus 1000 described later is particularly applicable to a refrigerator.

As shown in fig. 2 to 4, in some embodiments of the present utility model, the apparatus body 100 includes a housing 110, a cold storage compartment 120, a cold storage compartment 130, a cryogenic compartment 140, a cryogenic compartment 150, an insulation 160, and a cold storage chamber 170. The cold storage compartment 120 and the cold storage and refrigeration compartment 130 are communicated with each other, the cryogenic compartment 140 and the cryogenic refrigeration compartment 150 are communicated with each other, the cold accumulation cavity 170 and the cold storage compartment 120 are communicated with each other, and the heat insulation layer 160 is distributed among the cold storage compartment 120, the cold storage and refrigeration compartment 130, the cryogenic compartment 140, the cryogenic refrigeration compartment 150, the cold accumulation cavity 170 and the shell 110.

As shown in fig. 3, in some embodiments of the present utility model, the cold storage compartment 120 includes a refrigeration compartment 121 and a freezer compartment 122. The cold storage refrigeration compartment 130 includes a refrigeration compartment 131 and a refrigeration compartment 132. The refrigerating chamber 131 and the refrigerating chamber 121 communicate with each other, and the freezing chamber 132 and the freezing chamber 122 communicate with each other.

Furthermore, the person skilled in the art may also arrange the cold storage compartment 120 in any other feasible form, for example, such that the cold storage compartment 120 comprises only one of the refrigerating compartment 121 and the freezing compartment 122, and the number of the one item is set to any feasible number of one, two, three, etc.; the cold storage compartment 120 may also include a temperature change compartment or the like.

Further, the cold storage compartment 130 may be provided in any other feasible form as desired by one skilled in the art, for example, by having the cold storage compartment 130 include only one compartment and having the compartment communicate with each item included in the cold storage compartment 120.

With continued reference to fig. 3, in some embodiments of the utility model, the refrigeration system 200 includes a cold storage evaporator 217 and a cryogenic evaporator 225. Wherein the cold storage evaporator 217 is used for refrigerating the cold storage compartment 120, in particular, the cold storage evaporator 217 comprises a refrigeration evaporator 2171 and a freezing evaporator 2172. The refrigerating evaporator 2171 is disposed in the refrigerating chamber 131 to cool air in the refrigerating chamber 131. The freezing evaporator 2172 is disposed in the freezing chamber 132 to cool the air in the freezing chamber 132. A cryogenic evaporator 225 is disposed within the cryogenic refrigeration chamber 150 to cool the air within the cryogenic refrigeration chamber 150.

With continued reference to fig. 3, in some embodiments of the utility model, refrigeration apparatus 1000 further includes a cold storage fan 310 and a deep air cooler 320. The cold storage fan 310 is used for driving cold air in the cold storage and refrigeration compartment 130 to enter the cold storage compartment 120 and the cold storage cavity 170. Specifically, the cold storage fan 310 includes a refrigerating fan 311 and a freezing fan 312. The refrigerating fan 311 is used to drive cool air in the refrigerating compartment 131 into the refrigerating compartment 121 and force air to circulate between the refrigerating compartment 121 and the refrigerating compartment 131. The freezing blower 312 is used to drive cold air in the freezing compartment 132 into the freezing compartment 122 and the cold storage chamber 170, and to cause air flowing through the freezing compartment 132 to flow through the freezing compartment 122 and the cold storage chamber 170. The sub-ambient air cooler 320 is used to drive cold air in the sub-ambient air cooler 150 into the sub-ambient air cooler 140 and force air to circulate between the sub-ambient air cooler 140 and the sub-ambient air cooler 150.

Furthermore, in other embodiments of the present utility model, when there is only one cold storage compartment 130, i.e., when the refrigerating compartment 121 and the freezing compartment 122 share one refrigerating compartment, the cold storage compartment 120 (the refrigerating compartment 121 and the freezing compartment 122) may share one evaporator. The refrigerating compartment 121 and the freezing compartment 122 may share one fan, or may use one fan.

As shown in fig. 4, at least one cold accumulation chamber 170 is provided. Preferably, one cold accumulation chamber 170 is provided at each of left and right sides of the sub-zero compartment 140. It is further preferable that one cold accumulation chamber 170 is provided at each of left, right and bottom sides of the sub-zero compartment 140, and the cold accumulation chambers 170 at the left and right sides are respectively communicated with the cold accumulation chamber 170 at the bottom side. In addition, a person skilled in the art may also provide the cold accumulation chamber 170 at least one of the top side, the bottom side, the left side, the right side, the front side, and the rear side of the sub-zero chamber 140 as needed.

Preferably, the projected contour of each cold storage chamber 170 on a respective sidewall of the cryogenic compartment 140 is located outside of the respective sidewall so that the cryogenic compartment 140 can be adequately insulated by the cold storage chamber 170.

With continued reference to fig. 4, the cold storage chamber 170 is within the thermal insulation layer 160 between the housing 110 and the cryogenic compartment 140, such that the thermal insulation layer 160 insulates the cold storage chamber 170 and prevents the cold storage chamber 170 and the cryogenic compartment 140 from directly transferring heat with each other through the respective sidewalls.

As shown in fig. 4 and 5, the freezing compartment 132, the freezing compartment 122, and the cold accumulation chamber 170 are sequentially communicated to circulate air along the following paths: freezing and refrigerating chamber 132 → freezing and refrigerating chamber 122 → cold accumulation cavity 170 → freezing and refrigerating chamber 132. Alternatively, one skilled in the art may circulate air along the reverse path as desired: freezing and refrigerating chamber 132 → cold accumulation cavity 170 → freezing and refrigerating chamber 122 → freezing and refrigerating chamber 132.

Preferably, the end of the cold accumulation chamber 170, which is in communication with the cold storage compartment 120, is located at the top of the cold storage compartment 120 to ensure that the cold air in the cold storage compartment 120 sinks to the bottom of the cold storage compartment 120, thereby cooling the food material in the cold storage compartment 120.

In other embodiments of the present utility model, as shown in fig. 6, the refrigeration appliance 1000 further includes a damper assembly 400, the damper assembly 400 being used to control whether air flowing through the cold storage compartment 120 flows through the cold storage chamber 170. Preferably, the damper assembly 400 includes a first damper 410, a second damper 420, and a third damper 430. Wherein, the first air door 410 is used for preventing air from flowing back to the refrigerating chamber 132 from the refrigerating chamber 122, the second air door 420 is used for blocking air from entering the cold accumulation cavity 170 from the refrigerating chamber 122, and the third air door 430 is used for blocking air from entering the refrigerating chamber 132 from the cold accumulation cavity 170.

In other embodiments of the present utility model, the damper assembly 400 is capable of transitioning to a first state and a second state. When the damper assembly 400 is transitioned to the first state, the first damper 410 is closed, the second damper 420 and the third damper 430 are opened, and the flow paths of air within the freezer compartment 122, the refrigeration compartment 132 and the cold storage chamber 170 are as shown in fig. 5: freezing and refrigerating chamber 132 → freezing and refrigerating chamber 122 → cold accumulation cavity 170 → freezing and refrigerating chamber 132. When the damper assembly 400 is transitioned to the second state, the first damper 410 is opened, the second damper 420 and the third damper 430 are closed, and the flow paths of air within the freezer compartment 122, the refrigeration compartment 132 and the cold storage chamber 170 are as shown in fig. 6: freezing compartment 122→freezing refrigeration compartment 132→freezing compartment 122.

In other embodiments of the present utility model, the control method of the refrigeration appliance 1000 with respect to the damper assembly 400 includes:

in response to the cryogenic evaporator 225 cooling, the damper assembly 400 is controlled to transition to the first state such that air flowing through the cold storage compartment 120 flows through the cold storage chamber 170, step S100.

Specifically, when the refrigeration device 1000 detects that the cryogenic evaporator 225 is refrigerating the cryogenic compartment 140, the damper assembly 400 is switched to the first state to ensure that air flowing through the cryogenic compartment 122 flows through the cold storage chamber 170, thereby cooling the cold storage chamber 170, accumulating cold storage in the cold storage chamber 170, and further maintaining the cryogenic compartment 140.

In response to the cryogenic evaporator 225 stopping cooling for a preset period of time, the damper assembly 400 is controlled to transition to the second state such that air flowing through the cold storage compartment 120 does not flow through the cold storage chamber 170, step S200.

The preset duration may be any feasible value, such as 30 minutes, 1 hour, 3 hours, 6 hours, etc. The skilled person can determine the specific value of the preset duration by:

the cryogenic compartment 140 is first purged and then the cryogenic compartment 140 is cooled to a minimum operating temperature. Subsequently, the cryogenic evaporator 225 is stopped from introducing the refrigerant, the cryogenic fan 320 is stopped from rotating, and the time is started. The temperature in the cryogenic compartment 140 is detected, and when the temperature in the cryogenic compartment 140 reaches the operating temperature of the freezer compartment 122, a time is recorded, which may be a predetermined duration.

It should be noted that, the above determination manner is not the only determination manner of the preset duration, and the above determination manner is intended to facilitate the understanding of technical effects achieved by the preset duration by those skilled in the art.

Step S200 specifically includes, when the refrigeration appliance 1000 detects that the cryogenic evaporator 225 ceases to cool the cryogenic compartment 140 for a predetermined period of time, switching the damper assembly 400 to the second state to prevent air flowing through the refrigeration compartment 122 from flowing through the cold storage cavity 170, thereby saving the amount of cold generated by the refrigeration evaporator 2171.

In other embodiments of the present utility model, one skilled in the art can employ any viable strategy to determine whether cryogenic evaporator 225 is operational, as desired. For example, whether or not deep air cooler 320 is cooling is determined by detecting whether or not deep air cooler 320 is rotating. Specifically, when deep air cooler 320 rotates, it is determined that deep air cooler 320 is cooling; when the air cooler 320 stops rotating, it is determined that the air cooler 320 stops cooling.

Based on the foregoing, it will be appreciated by those skilled in the art that by providing at least one cold storage chamber 170 between the housing 110 and the cryogenic compartment 140 and placing each cold storage chamber 170 in communication with the cold storage compartment 120, the present utility model enables the at least one cold storage chamber 170 to receive cold air from the cold storage compartment 120 and thus enables at least a portion of the cryogenic compartment 140 to transfer cold to the cold storage compartment 120 and then to the external environment. Therefore, the at least one cold accumulation cavity 170 of the present utility model effectively reduces the leakage of the cold energy in the cryogenic compartment 140 to the external environment, and performs a cold insulation function on the cryogenic compartment 140, thereby avoiding the excessive thickness of the insulating layer outside the cryogenic compartment 140, and further improving the volume of the cryogenic compartment 140 and the volume rate of the refrigeration equipment 1000.

Further, whether the air flowing through the cold storage compartment 120 flows through the cold storage chamber 170 is controlled by the damper assembly 400, so that the damper assembly 400 is changed to the first state when the cryogenic evaporator 225 is refrigerating, so that the air flowing through the cold storage compartment 120 flows through the cold storage chamber; when the cryogenic evaporator 225 stops cooling for a preset period of time, the control damper assembly 400 transitions to the second state such that air flowing through the cold storage compartment 120 does not flow through the cold storage chamber 170. Therefore, the refrigerating device of the utility model does not store food in the cryogenic compartment 140, and when refrigeration is not needed, the air flowing through the cold storage compartment 120 does not flow through the cold accumulation cavity 170, so that ineffective refrigeration of the cryogenic compartment 140 by the refrigerating device is avoided, and the energy consumption of the refrigerating device is reduced.

A refrigeration system 200 suitable for use in some of the embodiments and others described above is described below with reference to fig. 7.

As shown in fig. 7, the refrigeration system 200 of the refrigeration appliance 1000 includes a first refrigeration system 210, a second refrigeration system 220, and a heat exchanger 230. The heat exchanger 230 is configured to enable the first refrigerant in the first refrigeration system 210 to absorb heat of the second refrigerant in the second refrigeration system 220, so that the first refrigeration system 210 reduces the temperature of the second refrigeration system.

With continued reference to fig. 7, the first refrigeration system 210 includes a cold storage compressor 211, a cold storage condenser 212, a cold storage dew point pipe 213, a cold storage dry filter 214, a reversing valve 215, a cold storage depressurization member 216, a cold storage evaporator 217, a cold storage liquid storage bag 218, and a cold storage muffler 219. Wherein the cold storage depressurization member 216 comprises a refrigeration capillary tube 2161, a refrigeration capillary tube 2162, and an optional auxiliary capillary tube 2163, and the cold storage evaporator 217 comprises a refrigeration evaporator 2171 (shown in fig. 3 and 7), a refrigeration evaporator 2172 (shown in fig. 3 and 7), and an optional auxiliary evaporator 2173. Wherein the refrigeration evaporator 2171 is used to cool the refrigerated compartment 121 of the refrigeration appliance 1000, the refrigeration evaporator 2172 is used to cool the refrigerated compartment 122 of the refrigeration appliance 1000, and the auxiliary evaporator 2173 is used to assist the second refrigeration system 220 in cooling the cryogenic compartment 140 of the refrigeration appliance 1000.

Further, the person skilled in the art may also arrange the cold storage depressurization member 216 as an electronic expansion valve as required, and omit the arrangement of the auxiliary capillary tube 2163 and the auxiliary evaporator 2173 as required.

With continued reference to FIG. 7, the outlet of the cold storage compressor 211 is in fluid communication with the inlet of the cold storage condenser 212, the outlet of the cold storage condenser 212 is in fluid communication with the inlet of the cold storage dew prevention pipe 213, the outlet of the cold storage dew prevention pipe 213 is in fluid communication with the inlet of the cold storage dry filter 214, and the outlet of the cold storage dry filter 214 is in fluid communication with the inlet of the reversing valve 215.

With continued reference to fig. 7, the reversing valve 215 includes a first outlet, a second outlet, and a third outlet. Wherein the first outlet is in fluid communication with an inlet of a refrigeration capillary tube 2161, the outlet of the refrigeration capillary tube 2161 is in fluid communication with an inlet of a refrigeration evaporator 2171, and the outlet of the refrigeration evaporator 2171 is in fluid communication with an inlet of a freeze evaporator 2172. The second outlet is in fluid communication with an inlet of a freeze capillary tube 2162, and an outlet of the freeze capillary tube 2162 is in fluid communication with an inlet of a freeze evaporator 2172. The third outlet is in fluid communication with an inlet of a secondary capillary tube 2163, an outlet of the secondary capillary tube 2163 is in fluid communication with an inlet of a secondary evaporator 2173, and an outlet of the secondary evaporator 2173 is in fluid communication with an inlet of a freeze evaporator 2172.

With continued reference to fig. 7, the outlet of the freeze evaporator 2172 is in fluid communication with the inlet of the cold storage reservoir 218, the outlet of the cold storage reservoir 218 is in fluid communication with the inlet of the cold storage return pipe 219, and the outlet of the cold storage return pipe 219 is in fluid communication with the suction inlet of the cold storage compressor 211.

The first refrigeration system 210 operates as follows:

the refrigerant flowing out of the cold storage compressor 211 is in a high-temperature and high-pressure state, and is cooled when flowing through the cold storage condenser 212, and is in a low-temperature and high-pressure state. The high-temperature and high-pressure refrigerant flows to at least one of the refrigerating capillary tube 2161, the freezing capillary tube 2162, and the auxiliary capillary tube 2163 by the direction-changing valve 215. The refrigerant flowing through the refrigerating storage capillary tube 2161 is expanded by pressure reduction, and is brought into a low-temperature and low-pressure state. The low-temperature and low-pressure refrigerant absorbs heat in the refrigerating evaporator 2171 to be in a high-temperature and low-pressure state, and thus, refrigerates the refrigerating compartment 121 of the refrigerating apparatus 1000. The pressure of the refrigerant flowing through the freezing capillary tube 2162 is reduced and expanded, and the refrigerant is brought into a low-temperature and low-pressure state. The low-temperature low-pressure refrigerant absorbs heat in the refrigerating evaporator 2172 to be in a high-temperature low-pressure state, and thus, cools the refrigerating compartment 122 of the refrigerating apparatus 1000. The pressure of the refrigerant flowing through the auxiliary capillary tube 2163 is reduced and expanded, and the refrigerant is brought into a low-temperature and low-pressure state. The low-temperature low-pressure refrigerant absorbs heat in the auxiliary evaporator 2173 to be in a high-temperature low-pressure state, and thus, cools the cryogenic compartment 140 of the refrigeration apparatus 1000. Finally, when the high-temperature low-pressure gaseous refrigerant flows through the cold storage compressor 211, the gaseous refrigerant is compressed again to a high-temperature high-pressure state.

The above-mentioned state of the refrigerant, that is, the high temperature, low temperature, high pressure, and low pressure of the refrigerant, is a state in which the refrigerant enters the corresponding part or exits the corresponding part, as compared with a state before the refrigerant flows into the corresponding part.

As shown in fig. 3, the cold storage condenser 212, the refrigeration evaporator 2171, the freezing evaporator 2172 and the auxiliary evaporator 2173 are further provided with fans, respectively, so that the cold storage condenser 212, the refrigeration evaporator 2171, the freezing evaporator 2172 and the auxiliary evaporator 2173 increase heat exchange rates with the surrounding environment by the respective corresponding fans.

Further, as shown in fig. 7, the second refrigeration system 220 includes a cryogenic compressor 221, a cryogenic condenser 222 (as shown in fig. 3 and 7), a cryogenic drying filter 223, a cryogenic depressurization member 224, a cryogenic evaporator 225, a cryogenic liquid package 226, a cryogenic return air pipe 227, and a heat exchange pipe 228.

Wherein the cryogenic pressure reducing member 224 is preferably provided as a capillary tube, herein referred to as a cryogenic capillary tube for ease of description. In addition, the cryogenic pressure reducing member 224 may also be provided as an electronic expansion valve as desired by those skilled in the art.

With continued reference to fig. 7, the outlet of the cryogenic compressor 221 is in fluid communication with the inlet of the cryogenic condenser 222, the outlet of the cryogenic condenser 222 is in fluid communication with the inlet of the heat exchange tube 228, the outlet of the heat exchange tube 228 is in fluid communication with the inlet of the cryogenic filter 223, the outlet of the cryogenic filter 223 is in fluid communication with the inlet of the cryogenic pressure reducing member 224, the outlet of the cryogenic pressure reducing member 224 is in fluid communication with the inlet of the cryogenic evaporator 225, the outlet of the cryogenic evaporator 225 is in fluid communication with the inlet of the cryogenic liquid storage package 226, the outlet of the cryogenic liquid storage package 226 is in fluid communication with the inlet of the cryogenic air return 227, and the outlet of the cryogenic air return 227 is in fluid communication with the inlet of the cryogenic compressor 221.

The second refrigeration system 220 operates as follows:

the refrigerant flowing out of the cryogenic compressor 221 is in a high-temperature and high-pressure state, and is cooled when flowing through the cryogenic condenser 222, and is in a low-temperature and high-pressure state. When the low-temperature and high-pressure refrigerant flows through the cryogenic pressure reducing member 224, the pressure is reduced and the refrigerant expands, and the refrigerant becomes a low-temperature and low-pressure state. The low-temperature low-pressure refrigerant absorbs heat in the cryogenic evaporator 225 to be in a high-temperature low-pressure state, and thus, cools the cryogenic compartment 140 of the refrigeration appliance 1000. When the high-temperature low-pressure gaseous refrigerant flows through the cryogenic compressor 221, the gaseous refrigerant is compressed again to a high-temperature high-pressure state.

Although not shown, in some embodiments of the utility model, the cryogenic evaporator 225 and the auxiliary evaporator 2173 may use a single blower (such as the cryogenic blower 320 shown in fig. 3) in combination and simultaneously serve to cool the cryogenic compartment 140 of the refrigeration appliance 1000. Structurally, the cryogenic evaporator 225 and the auxiliary evaporator 2173 may be connected together by the same set of fins or may not contact each other.

With continued reference to fig. 7, the cryogenic muffler 227 in the second refrigeration system 220 includes a first pipe segment 2271 and a second pipe segment 2272. The first tube segment 2271 is thermally coupled to the cryogenic pressure reducing member 224. Illustratively, the first tube segment 2271 and the cryogenic pressure reducing member 224 are connected together by fins, or the first tube segment 2271 and the cryogenic pressure reducing member 224 are encased in insulation wool. The second tube segment 2272 is thermally coupled to the heat exchange tube 228 as part of the cryogenic return 227. Illustratively, the second tube segment 2272 and the heat exchange tube 228 may be connected together by fins, or the second tube segment 2272 and the heat exchange tube 228 may be wrapped with insulation wool.

With continued reference to fig. 7, in some embodiments of the utility model, the heat exchanger 230 includes a first tube 231 and a second tube 232. Wherein the first tube 231 is connected in series between the outlet of the cold storage pressure reducing member 216 and the inlet of the cold storage compressor 211. Preferably, the inlet of the first tube 231 is in fluid connection with the outlet of the freeze capillary tube 2162, the outlet of the refrigeration evaporator 2171 and the outlet of the auxiliary evaporator 2173, respectively, and the outlet of the first tube 231 is in fluid connection with the inlet of the refrigeration evaporator 2172. The second pipe 232 is connected in series between the outlet of the cryocondenser 222 and the inlet of the cryo-reducing member 224, in particular, the second pipe 232 is connected in series between the cryo-condenser 222 and the cryo-drying filter 223.

In addition, in other embodiments of the present utility model, one skilled in the art may utilize any other available refrigeration system to cool the compartments of the refrigeration appliance 1000 of the present utility model, as desired. For example, the refrigerating system of direct cooling type is used to refrigerate each compartment of the refrigerating apparatus 1000, and specifically, a direct cooling type evaporator is allocated to each compartment.

Further, the refrigerating compartment 121 shown in fig. 3 may be used as a refrigerating compartment and the freezing compartment 122 shown in fig. 3 may be used as a refrigerating compartment, as required by those skilled in the art.

Thus far, the technical solution of the present utility model has been described in connection with the foregoing embodiments, but it will be readily understood by those skilled in the art that the scope of the present utility model is not limited to only these specific embodiments. The technical solutions in the above embodiments can be split and combined by those skilled in the art without departing from the technical principles of the present utility model, and equivalent changes or substitutions can be made to related technical features, so any changes, equivalent substitutions, improvements, etc. made within the technical principles and/or technical concepts of the present utility model will fall within the protection scope of the present utility model.

Claims (10)

1. A refrigeration device is characterized by comprising a device body and a refrigeration system,

the refrigerating system comprises a cryogenic evaporator and a cold storage evaporator;

the device body includes:

a housing;

a cryogenic compartment cooled by the cryogenic evaporator;

a cold storage compartment cooled by the cold storage evaporator;

at least one cold storage chamber disposed between the housing and the cryogenic compartment and in communication with the cold storage compartment, the at least one cold storage chamber for receiving cold air from the cold storage compartment to reduce leakage of cold within the cryogenic compartment to an external environment.

2. A refrigeration device according to claim 1, wherein,

the equipment body further comprises a cold storage refrigeration compartment for placing the cold storage evaporator, and the cold storage refrigeration compartment is communicated with the cold storage compartment;

the refrigeration equipment further comprises a cold storage fan, wherein the cold storage fan is used for driving cold air in the cold storage refrigeration compartment to enter the cold storage compartment and the cold storage cavity.

3. A refrigeration device according to claim 2, wherein,

the cold accumulation cavity is respectively communicated with the cold accumulation refrigeration compartment and the cold accumulation compartment,

the cold storage refrigeration compartment and the cold storage compartment are in communication with each other.

4. A refrigeration device according to claim 3, wherein,

one end of the cold accumulation cavity, which is communicated with the cold storage chamber, is positioned at the top of the cold storage chamber.

5. A refrigerating apparatus as recited in any one of claims 1 to 4, wherein,

the left side and the right side of the cryogenic chamber are respectively provided with one cold accumulation cavity.

6. A refrigerating apparatus as recited in any one of claims 1 to 4, wherein,

the equipment body further comprises an insulation layer arranged between the shell and the cryogenic chamber, and the cold accumulation cavity is arranged in the insulation layer.

7. A refrigerating apparatus as recited in any one of claims 1 to 4, wherein,

the cold storage compartment includes at least one of a freezer compartment, a refrigerator compartment, and a variable temperature compartment.

8. A refrigerating apparatus as recited in any one of claims 2 to 4, wherein,

the equipment body further comprises a cryogenic refrigeration chamber for placing the cryogenic evaporator, and the cryogenic refrigeration chamber is communicated with the cryogenic compartment;

the refrigeration equipment further comprises a deep air cooler, wherein the deep air cooler is used for driving cold air in the deep cooling refrigeration chamber to enter the deep cooling compartment.

9. A refrigerating apparatus as recited in any one of claims 1 to 4, wherein,

the refrigeration system comprises a first refrigeration system and a second refrigeration system, the first refrigeration system is used for refrigerating the second refrigeration system,

the cold storage evaporator is connected in series into the first refrigeration system, and the cryogenic evaporator is connected in series into the second refrigeration system.

10. A refrigerating apparatus as recited in claim 2 or 4, wherein,

the refrigeration appliance also includes a damper assembly for controlling whether air flowing through the cold storage compartment flows through the cold storage cavity.