CN219572380U - Freezing and refrigerating equipment - Google Patents

Abstract

The utility model belongs to the technical field of refrigeration equipment, and specifically provides a refrigeration equipment. The utility model aims to solve the problem that frosting easily occurs in the low-temperature compartment of the existing refrigeration equipment. For this reason, the freezing and refrigerating equipment of the present utility model includes a box body, a direct cooling evaporator, an air-cooling evaporator, a first door body and a second door body, and the box body defines a first storage compartment and an auxiliary refrigeration compartment. The direct cooling evaporator cools the first storage compartment in a direct cooling manner. The air-cooled evaporator is arranged in the auxiliary refrigeration room. The first door body is used to cover the first storage compartment, the second door body is arranged on the outside of the first door body, and a door gap is formed between the first door body and the second door body, and the door gap and the auxiliary refrigeration compartment communication to allow air to circulate between the door gap and the auxiliary refrigerated compartment. The freezing and refrigerating equipment of the utility model effectively avoids frosting in the door gap, and further effectively avoids frosting in the first storage compartment.

Description

Refrigeration equipment

technical field

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

Background technique

Compared with conventional -18°C cryopreservation, the low temperature of -40°C to -80°C has a better preservation effect on food materials, especially meat. For this reason, some freezing and refrigerating equipment (refrigerators or freezers) are provided with a low-temperature space, but because the door seal on the existing door body is not absolutely sealed, so when the ambient temperature and humidity are high, the water vapor in the external environment It is easy to penetrate into the low-temperature space through the door seal, resulting in a large amount of frost in the low-temperature space, which affects the use of users.

For this reason, existing low-temperature compartments generally adopt double-layer doors and double-layer door seals. When the external environment is high-temperature and high-humidity, the water vapor in the external environment easily enters between the two layers of doors through the outer door seal, and frosts on the outer surface of the inner door. At the same time, a small amount of water vapor will also enter the low-temperature compartment through the inner door seal, resulting in frosting in the low-temperature compartment, affecting the use of users.

Utility model content

One purpose of the present utility model is to solve the problem of easy frosting in the low-temperature compartment of the existing refrigeration equipment.

In order to achieve the above purpose, the utility model provides a refrigeration equipment, comprising:

a cabinet defining a first storage compartment and an auxiliary refrigeration compartment;

a direct cooling evaporator, which refrigerates the first storage compartment in a direct cooling manner;

an air-cooled evaporator arranged in the auxiliary refrigeration compartment;

A first door body and a second door body, the first door body is used to cover the first storage compartment, the second door body is arranged on the outside of the first door body, and the first door body A door gap is formed between the door body and the second door body, and the door gap communicates with the auxiliary refrigerated compartment, so that air circulates between the door gap and the auxiliary refrigerated compartment.

Optionally, the refrigerating and refrigerating equipment further includes an auxiliary circulation fan, and the auxiliary circulation fan is used to drive the air in the auxiliary refrigerating compartment to flow toward the door gap.

Optionally, the box body further defines a second storage compartment, and the second storage compartment is connected to the auxiliary

Optionally, the second storage compartment is also in communication with the door gap, so that the air in the auxiliary refrigeration compartment enters the door gap through the second storage compartment.

Optionally, the auxiliary refrigeration compartment includes an air supply port communicated with the second storage compartment and an air return port communicated with the second storage compartment, and the refrigerating equipment further includes a damper, and the damper is used to To cover the return air outlet.

Optionally, the second storage compartment is located on the left side, right side, upper side or lower side of the first storage compartment; and/or, the second storage compartment is closed by the second door body shaded.

Optionally, the second storage compartment is a freezer compartment; and/or, the operating temperature of the first storage compartment is lower than that of the second storage compartment.

Optionally, the first door body and the second door body are fixedly connected or made integrally.

Optionally, one of the first door body and the second door body is provided with a protruding structure on one side facing the other, and the protruding structure divides the door gap into a bow-shaped channel; The arcuate channel receives air from the auxiliary refrigerated compartment through its inlet and discharges the air therein through its outlet.

Optionally, the box body further defines a return air passage, and the return air passage connects the door gap with the auxiliary refrigeration compartment, so that the air in the door gap flows through the return air passage. Back to the auxiliary refrigeration compartment.

Optionally, the direct cooling evaporator abuts against a side wall of the first storage compartment.

Optionally, the refrigerating and refrigerating equipment is configured to, when the second door changes from an open state to a closed state, control the auxiliary circulation fan to rotate, and control the damper to cover the air return port for a preset period of time.

Based on the foregoing description, those skilled in the art can understand that, in the aforementioned technical solution of the utility model, by setting an auxiliary refrigeration compartment on the box body and an air-cooled evaporator in the auxiliary refrigeration compartment, the first door The door gap between the door body and the second door body communicates with the auxiliary refrigeration compartment, so that the air can circulate between the door gap and the auxiliary refrigeration compartment, so that the water vapor in the door gap is carried to the auxiliary refrigeration compartment. The cold evaporator is cooled to frost. Therefore, the freezing and refrigerating equipment of the present utility model effectively avoids frosting in the door gap, and further effectively avoids frosting in the first storage compartment.

Further, by making the box define a second storage compartment communicated with the auxiliary refrigeration compartment, and making the door gap communicate with the auxiliary refrigeration compartment through the second storage compartment and the return air passage, the auxiliary refrigeration compartment is removed While trapping water vapor in the door gap, it can also cool the second storage compartment.

Further, by making the second door cover the second storage compartment, the cold air flowing out from the second storage compartment can directly flow into the door gap.

Further, the air return port connecting the auxiliary refrigeration compartment with the second storage compartment is shielded by the damper, so that when the second door body of the refrigeration equipment changes from the open state to the closed state, the auxiliary circulation fan is controlled to rotate and the damper is controlled to shield the air return port. The preset duration of the air outlet can make all the air in the door gap quickly flow to the air-cooled evaporator for dehumidification.

Still further, the door gap is divided into a bow-shaped channel by the raised structure between the first door body and the second door body, and the bow-shaped channel receives air from the auxiliary refrigeration compartment through its inlet, and discharges it through its outlet. The air in the door gap can quickly and completely flow to the air-cooled evaporator, preventing high-humidity air from staying in the door gap and forming frost in the door gap.

Other beneficial effects of the utility model will be described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can more clearly understand the improved purpose, features and advantages of the utility model.

Description of drawings

In order to illustrate the technical solution of the utility model more clearly, some embodiments of the utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that the components or parts indicated by the same reference number in different drawings are the same or similar; the drawings of the present utility model are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic diagram of the cross-sectional effect of the freezing and refrigerating equipment in the first embodiment of the present invention;

Fig. 2 is a schematic diagram of the section effect of the refrigeration equipment in the second embodiment of the present invention;

Fig. 3 is a schematic diagram of the section effect of the freezing and refrigeration equipment in the third embodiment of the present invention;

Fig. 4 is a schematic diagram of the axonometric effect of the door assembly in the fourth embodiment of the present invention;

Fig. 5 is a schematic plan view of the door assembly in the fourth embodiment of the present invention.

Detailed ways

It should be understood by those skilled in the art that the embodiments described below are only some embodiments of the present utility model, rather than all embodiments of the present utility model, and this part of embodiments is intended to explain the technical principle of the present utility model , are not intended to limit the protection scope of the present utility model. Based on the embodiments provided by the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts should still fall within the protection scope of the present utility model.

It should be noted that, in the description of the present utility model, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", Terms indicating directions or positional relationships such as "inside" and "outside" are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, Constructed and operative in a particular orientation and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

Further, it should be noted that, in the description of the present utility model, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, or It can be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can also be an internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

In addition, it should be noted that in the description of the present utility model, the terms "coldness" and "heat" are two descriptions of the same physical state. That is to say, the higher the "cooling capacity" of an object (such as evaporator, air, condenser, etc.), the lower the "heat" it has, and the lower the "cold capacity" it has, the more "heat" it has. high. A target absorbs "coldness" and releases "heat" at the same time, and releases "coldness" while absorbing "heat". An object preserves "coldness" or "heat" in order to keep the object at its current temperature. "Cooling" and "heat absorption" are two descriptions of the same physical phenomenon, that is, an object (such as an evaporator) absorbs heat while cooling.

Finally, it needs to be explained that in the present utility model, the freezing and refrigerating equipment may be a refrigerator, a freezer, or any other feasible freezing and refrigerating equipment.

The first embodiment of the present utility model will be described in detail below with reference to FIG. 1 .

What needs to be explained before is that, for the convenience of description, and in order to enable those skilled in the art to quickly understand the technical solution of the utility model, only the technical problems and/or technical ideas to be solved in the utility model are related to the following. The technical features that are relatively strong (directly or indirectly related) will be described, and the technical features that are weakly related to the technical problems and/or technical concepts to be solved by the utility model will not be described in detail. Since the weakly related technical features belong to common knowledge in the field, even if the utility model does not describe the weakly related features, the disclosure of the utility model will not be insufficient.

For example, in the present utility model, the refrigerating equipment must include a compressor, a condenser, a capillary tube or an electronic expansion valve, and these components are essential components of the refrigerating equipment, and are well known to those skilled in the art, even if Without further elaboration, those skilled in the art can also arrange the above-mentioned components at corresponding positions in the freezing and refrigerating equipment according to common knowledge.

As shown in FIG. 1 , in the first embodiment of the present utility model, the refrigerating equipment includes a cabinet 100 , a direct-cooling evaporator 210 , an air-cooling evaporator 220 , an auxiliary circulation fan 300 and a door assembly 400 .

Continuing to refer to FIG. 1 , the box body 100 defines a first storage compartment 101 and an auxiliary refrigeration compartment 102 . The direct cooling evaporator 210 cools the first storage compartment 101 in a direct cooling manner, and the air-cooling evaporator 220 and the auxiliary circulation fan 300 are both arranged in the auxiliary refrigeration compartment 102 .

Wherein, the first storage compartment 101 is a cryogenic compartment, and the temperature inside it can reach -40°C to -80°C.

Further, the direct cooling evaporator 210 abuts against the side wall of the first storage compartment 101 . Exemplarily, the direct cooling evaporator 210 is a wire tube evaporator wound around the outside of the first storage compartment 101 . Alternatively, the direct cooling evaporator 210 is disposed inside the first storage compartment 101 , and the direct cooling evaporator 210 abuts against the rear side wall of the first storage compartment 101 . Alternatively, a plurality of plate-type shelves are arranged in the first storage compartment 101, and the direct cooling evaporator 210 is arranged on the shelves.

As shown in FIG. 1 , in the first embodiment of the present utility model, the door assembly 400 includes a first door body 410 and a second door body 420 , the first door body 410 is used to cover the first storage compartment 101 , and the second door body 420 The door body 420 is arranged on the outer side of the first door body 410, and a door gap 430 is formed between the first door body 410 and the second door body 420, and the door gap 430 communicates with the auxiliary refrigeration compartment 102, so that air flows through the door gap. 430 circulates with the auxiliary refrigeration compartment 102 .

Optionally, the first door body 410 and the second door body 420 are fixedly connected or integrally formed, so as to facilitate the user to open and close the first door body 410 and the second door body 420 .

Further optionally, the first door body 410 and the second door body 420 may be connected in any feasible connection manner, such as clip connection, screw connection, riveting and the like.

Continuing to refer to Fig. 1, in the first embodiment of the present utility model, the box body 100 also defines a return air passage 103, and the return air passage 103 communicates the door gap 430 with the auxiliary refrigeration compartment 102, so that the air in the door gap 430 It flows back into the auxiliary refrigeration compartment 102 through the return air passage 103 .

Based on the foregoing description, those skilled in the art can understand that, in the first embodiment of the present utility model, by connecting the auxiliary refrigeration compartment 102, the door gap 430 and the return air passage 103 in sequence, the air is circulated in the auxiliary circulation. Under the action of the fan 300 , the flow can circulate along the following path: auxiliary cooling compartment 102→door gap 430→return air channel 103→auxiliary cooling compartment 102 . When the air flows into the auxiliary refrigeration compartment 102, it will be cooled by the air-cooled evaporator 220, so that the water vapor in the air is frosted at the air-cooled evaporator 220, thereby reducing the water vapor in the air, and then reducing the The probability of water vapor frosting in the door gap 430. Further, the water vapor entering the first storage compartment 101 is reduced, thereby weakening or avoiding the occurrence of frost in the first storage compartment 101 .

Further, when there is a lot of frost condensation on the air-cooled evaporator 220 , the refrigerating equipment turns on the defrosting function of the air-cooled evaporator 220 , so as to melt the frost condensation on the air-cooled evaporator 220 .

Optionally, the freezing and refrigerating equipment includes an electric heating device for heating the air-cooled evaporator 220, so as to melt the condensation on the air-cooled evaporator 220 through the electric heating device.

Referring to Fig. 2, the refrigerating and freezing equipment in the second embodiment of the present invention will be described in detail.

As shown in FIG. 2 , different from the first embodiment described above, in the second embodiment of the present utility model, the box body 100 also defines a second storage compartment 104 located above the first storage compartment 101 , the second storage compartment 104 communicates with the auxiliary refrigeration compartment 102 . In addition, those skilled in the art can also arrange the second storage compartment 104 below, on the left side or on the right side of the first storage compartment 101 as required.

Further, the auxiliary refrigeration compartment 102 includes an air supply port 1021 communicating with the second storage compartment 104 and an air return port 1022 communicating with the second storage compartment 104 . Under the action of the auxiliary circulation fan 300 , the air in the auxiliary refrigerating compartment 102 flows into the second storage compartment 104 from the air supply port 1021 , and the air in the second storage compartment 104 flows back to the auxiliary refrigerating compartment 102 through the air return port 1022 .

Optionally, the second storage compartment 104 is a freezer compartment, and the operating temperature of the second storage compartment 104 is higher than that of the first storage compartment 101 .

Continuing to refer to FIG. 2 , the second door body 420 is also used to close the second storage compartment 104 so that the second storage compartment 104 communicates with the door gap 430 .

Further, the first door body 410 and the second door body 420 are split structures, so that the second door body 420 can be opened independently, so that the user can put food into the second storage compartment 104, or put the second The ingredients in the storage compartment 104 are taken out.

Based on the foregoing description, those skilled in the art can understand that, compared with the first embodiment, the second embodiment of the present utility model can make the air flow along the following path: auxiliary refrigeration compartment 102→second storage compartment 104→door gap 430→return air channel 103→auxiliary refrigeration compartment 102. Because the cold air flows through the second storage compartment 104 first, and then flows to the door gap 430 , the refrigerating device in the second embodiment also improves the utilization rate of the cooling capacity generated by the air-cooled evaporator 220 .

Referring to FIG. 3 , the freezing and refrigerating equipment in the third embodiment of the present invention will be described in detail.

As shown in FIG. 3 , different from the second embodiment described above, in the third embodiment of the present utility model, the refrigerating equipment further includes a damper 500 for shielding the air return port 1022 .

Further, the refrigeration equipment is configured to control the rotation of the auxiliary circulation fan 300 and control the rotation of the damper when the second door body 420 changes from the open state to the closed state (the state that covers the second storage compartment 104 as shown in FIG. 3 ). 500 shades the return air outlet 1022 for the preset duration.

Furthermore, the refrigeration equipment is also configured such that after the second door body 420 is closed for a preset period of time, the air door 500 is controlled to open the air return port 1022, so that the air in the second storage compartment 104 can directly flow back to the Inside the auxiliary refrigeration compartment 102 .

Wherein, the preset duration may be any feasible duration, such as 3 seconds, 5 seconds, 10 seconds, 45 seconds, 1.5 minutes and so on.

Those skilled in the art can understand that, when the second door body 420 changes from the open state to the closed state, by controlling the rotation of the auxiliary circulation fan 300 and controlling the damper 500 to cover the air return port 1022 for a preset duration, the inside of the door gap 430 can be All the air flows rapidly to the air-cooled evaporator 220 for dehumidification.

Those skilled in the art can further understand that, within the preset time period, since the second door body 420 covers the air return port 1022, the air in the second storage compartment 104 can only flow back to the auxiliary refrigeration room through the door gap 430 The chamber 102 avoids the air return port 1022 from diverting the air in the second storage chamber 104, and the dehumidification efficiency is higher.

Referring to Fig. 4 and Fig. 5, the refrigerating and freezing equipment in the fourth embodiment of the present utility model will be described in detail.

As shown in Fig. 4 and Fig. 5, different from any embodiment described above, in the fourth embodiment of the present utility model, one of the first door body 410 and the second door body 420 faces the other One side of the item is provided with a raised structure 440 which divides the door gap 430 into a bow-shaped channel 431 . Also, the bow-shaped channel 431 receives air from the auxiliary refrigerated compartment 102 through its inlet, and discharges the air therein through its outlet.

Wherein, the protruding structure 440 may or may not be in contact with the other of the first door body 410 and the second door body 420 .

Exemplarily, the protruding structure 440 is disposed on the first door body 410, and when the second door body 420 is closed, the protruding structure 440 abuts against the second door body 420, and thus divides the door gap 430 into a bow-shaped passage. 431.

Those skilled in the art can understand that, compared with the door gap 430, the bow-shaped channel 431 has a narrower path section, faster air flow speed, and fewer dead spots, thereby ensuring that the air in the door gap 430 can be quickly and efficiently. All flow to the air-cooled evaporator 220 , avoiding high-humidity air staying in the door gap 430 and forming frost in the door gap 430 .

So far, the technical solutions of the present invention have been described in conjunction with the foregoing embodiments. However, those skilled in the art can easily understand that the protection scope of the present invention is not limited to these specific embodiments. Without departing from the technical principles of the present utility model, those skilled in the art can split and combine the technical solutions in the above-mentioned embodiments, and can also make equivalent changes or replacements to the relevant technical features. Any changes, equivalent replacements, improvements, etc. made within the technical concept and/or technical principles of the present invention will fall within the protection scope of the present utility model.

Claims (10)

1. A freezer, characterized in that, comprising: a cabinet defining a first storage compartment and an auxiliary refrigeration compartment; a direct cooling evaporator, which refrigerates the first storage compartment in a direct cooling manner; an air-cooled evaporator arranged in the auxiliary refrigeration compartment; A first door body and a second door body, the first door body is used to cover the first storage compartment, the second door body is arranged on the outside of the first door body, and the first door body A door gap is formed between the door body and the second door body, and the door gap communicates with the auxiliary refrigerated compartment, so that air circulates between the door gap and the auxiliary refrigerated compartment. 2. The freezer according to claim 1, wherein: The freezing and refrigerating equipment further includes an auxiliary circulation fan, and the auxiliary circulation fan is used to drive the air in the auxiliary refrigeration compartment to flow toward the door gap. 3. The freezer according to claim 2, wherein: The box body also defines a second storage compartment communicating with the auxiliary refrigeration compartment. 4. The freezer according to claim 3, wherein: The second storage compartment is also in communication with the door gap, so that the air in the auxiliary refrigeration compartment enters the door gap through the second storage compartment. 5. The freezing and refrigerating equipment according to claim 4, wherein the auxiliary refrigeration compartment includes an air supply port communicating with the second storage compartment and an air return port communicating with the second storage compartment, The freezing and refrigerating equipment further includes a damper, and the damper is used to cover the air return port. 6. The freezer according to any one of claims 3 to 5, characterized in that, The second storage compartment is located on the left side, right side, upper side or lower side of the first storage compartment; and/or, The second storage compartment is covered by the second door body. 7. The freezer according to any one of claims 3 to 5, characterized in that, said second storage compartment is a freezer compartment; and/or, The operating temperature of the first storage compartment is lower than the operating temperature of the second storage compartment. 8. The freezer according to any one of claims 1 to 5, characterized in that, One of the first door body and the second door body is provided with a protruding structure on one side facing the other, and the protruding structure divides the door gap into a bow-shaped channel; The arcuate channel receives air from the auxiliary refrigerated compartment through its inlet and discharges the air therein through its outlet. 9. The freezer according to any one of claims 1 to 5, characterized in that, The box body also defines a return air passage, and the return air passage communicates the door gap with the auxiliary refrigerating compartment, so that the air in the door gap flows back to the auxiliary refrigeration compartment through the return air passage. Refrigeration compartment. 10. The freezer according to any one of claims 1 to 5, characterized in that, The direct cooling evaporator is in contact with the side wall of the first storage compartment.