CN220442351U

CN220442351U - Refrigeration showcase

Info

Publication number: CN220442351U
Application number: CN202321879867.XU
Authority: CN
Inventors: 车城剑; 兰功鹏; 周波; 姬松松
Original assignee: Carrier Corp
Current assignee: Carrier Corp
Priority date: 2023-07-17
Filing date: 2023-07-17
Publication date: 2024-02-06
Anticipated expiration: 2033-07-17

Abstract

The utility model provides a refrigeration showcase, which comprises: a cabinet body; the display rack is fixed in the cabinet body; the air duct is at least partially arranged around the display rack; a partition plate installed in the air duct for dividing the air duct into an inner air duct and an outer air duct, and provided with an opening for communicating the inner air duct and the outer air duct; an evaporator disposed in the inner air duct and having a side portion thereof at or near the opening; and a damper assembly fixed at the opening of the partition, wherein the damper assembly is capable of opening or closing the opening. The refrigerated display cabinet according to the present utility model can defrost the evaporator simultaneously from the bottom and side of the evaporator during the defrosting mode, thereby improving defrosting efficiency.

Description

Refrigeration showcase

Technical Field

The utility model relates to the technical field of refrigeration equipment, in particular to a refrigeration showcase.

Background

The refrigerated showcase is used as an important carrier for food sales, is mainly used as a container in the market, is a necessary facility in the market, supermarket, catering industry and the like, and can store and display milk products, beverages, fruits, meat products and the like at different temperatures.

The structure of the present refrigeration showcase is shown in fig. 1 and 2, the main body of the refrigeration showcase 10 is a case 11, an air duct 12, a fan 13 and an evaporator 14 are disposed in the case 11, wherein a partition 15 divides the air duct 12 into an inner air duct 12a and an outer air duct 12b, the fan 13 is disposed at or near the bottom end of the partition 15 so as to blow air into the air duct 12, and the evaporator 14 is disposed in the inner air duct 12 a. After the external air enters the air duct 12 of the cabinet 11, the external air is divided into two air flows through the partition plate 15: a flow of air flows through the evaporator 14 in the inner duct 12a and is converted into a low temperature air flow by heat exchange to cool the goods on the shelves 16; the other air flow circulates in the outer air duct 12b, so that the air curtain of the inner air duct 12a is protected from being exposed to the environment, and the aim of saving energy is fulfilled. The two streams exit the apertures in the air outlet plate of the duct 12 and blow downwardly and are redirected from the return air inlet back into the cabinet 11 in such a manner as to form a "curtain" around the display shelves 16, the direction of flow of the air being indicated by the arrows in figure 1.

However, during operation of the refrigerated display cabinet 10, the evaporator 14 in the inner air duct 12a is prone to frosting. The presence of frost reduces the airflow into the evaporator 14, thereby affecting the cooling effect and tending to spoil temperature sensitive products, which may cause losses to the merchant and also may lead to the customer buying spoiled products. Accordingly, there is a need for further improvements in refrigerated display cases.

Disclosure of Invention

In view of the above, the present utility model provides a refrigerated display cabinet that solves or at least alleviates one or more of the above-identified problems and other problems of the prior art, or provides an alternative solution to the prior art.

According to an aspect of the present utility model, there is provided a refrigerated display cabinet comprising:

a cabinet body;

the display rack is fixed in the cabinet body;

the air duct is at least partially arranged around the display rack;

a partition plate installed in the air duct for dividing the air duct into an inner air duct and an outer air duct, and provided with an opening for communicating the inner air duct and the outer air duct;

an evaporator disposed in the inner air duct and having a side portion thereof at or near the opening; and

and the air door assembly is fixed at the opening of the partition plate, wherein the air door assembly can open or close the opening.

In yet another embodiment of a refrigerated display cabinet according to the utility model, the air door assembly comprises a plurality of air deflectors rotatably fixed at the opening and which are synchronized to open or close the opening by means of a linkage.

In yet another embodiment of the refrigerated display cabinet according to the utility model, the plurality of wind deflectors comprises a first wind deflector, a second wind deflector and a third wind deflector, wherein the first wind deflector is arranged at or near the top of the evaporator, the second wind deflector is arranged at or near the middle of the evaporator and the third wind deflector is arranged at or near the bottom of the evaporator.

In yet another embodiment of the refrigerated display cabinet according to the utility model, the second and third wind deflectors have the same length and the second and third wind deflectors have a length which is smaller than the length of the first wind deflector.

In another embodiment of the refrigerated display cabinet according to the utility model, the width of the first, second and third wind deflectors is the same as the width of the outer duct in the horizontal direction.

In yet another embodiment of the refrigerated display cabinet according to the utility model, the length of the first wind deflector is smaller than the length of the outer duct in the horizontal direction.

In another embodiment of the refrigerated display cabinet according to the utility model, the first, the second and the third wind deflector are made of metal or plastic.

In yet another embodiment of the refrigerated display cabinet according to the utility model, the shape of the opening corresponds to the shape of the side of the evaporator.

In yet another embodiment of the refrigerated display cabinet according to the utility model, the first, second and third wind deflectors are controlled by a stepper motor controller.

In another embodiment of the refrigerated display cabinet according to the utility model, the shutter assembly is fixed at the opening of the partition by means of bolts.

In yet another embodiment of the refrigerated display cabinet according to the utility model, the refrigerated display cabinet further comprises a fan, the fan being arranged at or near the bottom end of the partition.

It can be appreciated that the refrigeration showcase adopts the design of simultaneously air inlet from the side part and the bottom part of the evaporator, so that the direct air inlet area of the evaporator is larger during the defrosting mode, the heat exchange efficiency is greatly improved, and a better defrosting effect is obtained.

Drawings

The technical solution of the present utility model will be described in further detail below with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for the purpose of illustration only and are intended to conceptually illustrate the structural configurations described herein, and are not necessarily drawn to scale.

FIG. 1 shows a cross-sectional view of a prior art refrigerated display cabinet;

FIG. 2 shows an enlarged partial schematic view of the refrigerated display cabinet of FIG. 1;

FIG. 3 schematically illustrates a cross-sectional view of an embodiment of a refrigerated display cabinet according to the utility model; and

fig. 4 schematically illustrates an enlarged partial view of the refrigerated display cabinet of fig. 3.

Detailed Description

The following description of the utility model and the differences between the present utility model and the prior art will be understood with reference to the accompanying drawings and text. The technical solution of the present utility model will be described in further detail below by means of the attached drawings and by way of examples of some alternative embodiments of the present utility model. The same or similar reference numbers in the drawings refer to the same or similar parts.

It should be noted that: any technical feature and any technical solution in this embodiment are one or several of various optional technical features or optional technical solutions, and in order to describe brevity, all of the optional technical features and the optional technical solutions of the present utility model cannot be exhausted in this document, and it is inconvenient for an implementation of each technical feature to emphasize that it is one of various optional implementations, so those skilled in the art should know: any one of the technical means provided by the utility model can be replaced or any two or more of the technical means or technical features provided by the utility model can be mutually combined to obtain a new technical scheme.

Any technical features and any technical solutions in the present embodiment do not limit the protection scope of the present utility model, and the protection scope of the present utility model should include any alternative technical solution that can be conceived by a person skilled in the art without performing creative efforts, and a new technical solution obtained by combining any two or more technical means or technical features provided by the present utility model with each other by a person skilled in the art.

Those skilled in the art are aware that refrigerated display cases are widely used for displaying goods to be refrigerated, and are mainly used for realizing refrigerated storage of goods, and displaying some goods to be refrigerated to consumers. To facilitate customer purchase, refrigerated display cases are typically open, with the food product being separated from the environment outside the case by an air curtain to reduce the ingress of hot air.

As shown in fig. 3, there is shown schematically in general the construction of one embodiment of the refrigerated display case of the present utility model. As best seen in fig. 3 and 4, the refrigerated display case 100 is comprised of a case 110, a display stand 120, an air duct 130, a baffle 140, an evaporator 150, and a damper assembly 160. The display rack 120 is fixed in the cabinet 110, and is used for storing and displaying various commodities such as milk products, beverages, fruits, meat products, etc., and the air duct 130 is at least partially disposed around the display rack 120. The partition 140 is installed in the air duct 130 to partition the air duct 130 into an inner air duct 131 and an outer air duct 132, wherein the inner air duct 131 is closer to the display rack 120 than the outer air duct 132. To deliver ambient air into the cabinet 110, the refrigerated display cabinet 100 may further include a blower 170, the blower 170 being disposed at or near the bottom end of the bulkhead 140. In addition, the partition 140 is further provided with an opening for communicating the inner air duct 131 and the outer air duct 132. As shown in fig. 4, the evaporator 150 is disposed in the inner duct 131, and a side portion of the evaporator 150 is located at or near the opening. In addition, the damper assembly 160 may be fixed to the opening of the partition 140 by means of bolts or the like, wherein the damper assembly 160 can open or close the opening. Thus, air can be drawn not only from the bottom of the evaporator but also from the sides of the evaporator during the defrost mode of the refrigerated display cabinet. The heat exchange efficiency can be greatly improved by increasing the air inlet area, so that the defrosting process is accelerated.

The working principle of the refrigerated display cabinet according to the utility model during the cooling mode and the defrosting mode is described below in connection with fig. 3 and 4.

During the cooling mode, after the ambient air enters the air duct 130 of the refrigerated display cabinet 100, the ambient air is split into two air streams by the partition 140: a flow of air flows through the evaporator 150 in the inner air duct 131, and forms a refrigerating air flow through heat exchange to cool the goods on the display rack 120; the other air flows through the outer air duct 132 to protect the inner air curtain of the inner air duct 131 from being exposed to the environment, thereby achieving the purpose of energy saving. The two streams exit the apertures in the air outlet plate of the duct 130 and blow downwardly and are redirected back into the cabinet 110 from the return air inlet. It will be appreciated that in such refrigerated display cases 100, the air forms a "curtain" around the display shelves 120.

During the defrosting mode, after the external air enters the air duct 130 of the cabinet 110, the external air is divided into two air flows by the partition 140: an air flow flows through the evaporator 150 in the inner air duct 131 so as to defrost from the bottom of the evaporator 150; at the same time, the damper assembly 160 opens the opening such that another air flow flows into the side of the evaporator 150 at the outer air duct 132 via the opening to defrost the side of the evaporator 150. The two streams combine at the evaporator 150 into one stream that exits through holes in the air outlet plate of the duct 130, blows downwardly, and is redirected back into the cabinet 110 from the return air inlet. The flow direction of the gas at the time of defrosting is shown by arrows in fig. 3.

In other alternative embodiments in combination with the above embodiments, the damper assembly 160 includes a plurality of windshields rotatably secured at the opening and which may be synchronized to open or close the opening by means of a linkage (not shown). By adopting the design of the multi-stage air door, air can be fed from the side surface of the evaporator step by step, so that the heat exchange efficiency of the evaporator 150 is improved. Specifically, the plurality of wind shields include a first wind shield 161, a second wind shield 162, and a third wind shield 163, wherein the first wind shield 161 may be disposed at or near the top of the evaporator 150, the second wind shield 162 may be disposed at or near the middle of the evaporator 150, and the third wind shield 163 may be disposed at or near the bottom of the evaporator 150, as shown in fig. 4. Further, the second and third windshields 162, 163 are the same length, and the second and third windshields 162, 163 are less than the first windshields 161 in length, such that air is drawn from the side of the evaporator from below to above during defrost mode. Further, the length of the first wind deflector 161 may be designed to be smaller than the length of the outer wind channel 132 in the horizontal direction. When the first wind deflector 161 is rotated to the maximum position, the first wind deflector 161 forms an inclined angle with the sidewall of the cabinet 110 due to the stopper of the sidewall of the cabinet 110. In this case, the second wind deflector 162 and the third wind deflector 163 may be rotated to the same inclined position as the first wind deflector 161 (see fig. 3 and 4), which is very advantageous for guiding the air smoothly into the side of the evaporator 150.

To ensure that the air flow in the outer air duct 132 can all enter the evaporator 150 during defrosting, the widths of the first, second and third air deflectors 161, 162 and 163 may be designed to be the same as the width of the outer air duct 132 in the horizontal direction (i.e., perpendicular to the paper surface). It is also easily conceivable to those skilled in the art that the first wind deflector 161, the second wind deflector 162 and the third wind deflector 163 may be made of metal or plastic. Further, the first, second and third wind shields 161, 162 and 163 may be controlled by a stepping motor controller (not shown). The stepper motor controller can control the rotation angles and rotation directions of the first wind deflector 161, the second wind deflector 162 and the third wind deflector 163, so that the damper assembly 160 can synchronously open or close the opening as required.

By way of example, in the refrigerated display case 100 according to the utility model, the shape of the opening corresponds to the shape of the side of the evaporator 150. That is, the side air inlet area of the evaporator 150 is the same as the side area of the evaporator 150, so that the entire side of the evaporator 150 directly participates in heat exchange, which is beneficial to accelerating the defrosting process of the evaporator 150.

In summary, the refrigeration showcase disclosed by the utility model adopts the design of simultaneously air-intake from the side part and the bottom part of the evaporator, so that the direct air-intake area of the evaporator is larger during the defrosting mode, the heat exchange efficiency is further improved, and a better defrosting effect is obtained.

If the terms "first," "second," etc. are used herein to define a part, those skilled in the art will recognize that: the use of "first" and "second" is used merely to facilitate distinguishing between components and not otherwise stated, and does not have a special meaning.

In addition, terms used in any of the above-described aspects of the present disclosure to express positional relationship or shape have meanings including a state or shape similar to, similar to or approaching thereto unless otherwise stated. Any part provided by the utility model can be assembled by a plurality of independent components, or can be manufactured by an integral forming process.

In the description of the present utility model, if the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are used, the above terms refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not refer to or suggest that the apparatus, mechanism, component or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of protection of the present utility model.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.

Claims

1. A refrigerated display cabinet, the refrigerated display cabinet comprising:

a cabinet body;

the display rack is fixed in the cabinet body;

the air duct is at least partially arranged around the display rack;

2. The refrigerated display cabinet of claim 1, wherein the damper assembly comprises a plurality of wind deflectors rotatably secured at the opening and the plurality of wind deflectors synchronously open or close the opening by means of a linkage.

3. The refrigerated display cabinet of claim 2, wherein the plurality of wind deflectors comprises a first wind deflector, a second wind deflector, and a third wind deflector, wherein the first wind deflector is disposed at or near a top of the evaporator, the second wind deflector is disposed at or near a middle of the evaporator, and the third wind deflector is disposed at or near a bottom of the evaporator.

4. A refrigerated display cabinet as claimed in claim 3 wherein the second and third wind deflectors are of the same length and the second and third wind deflectors are of a length less than the first wind deflector.

5. The refrigerated display cabinet of claim 3 or 4, wherein the first, second and third wind deflectors have the same width in the horizontal direction as the outer duct.

6. The refrigerated display cabinet of claim 4, wherein the length of the first wind deflector is less than the length of the outer duct in the horizontal direction.

7. The refrigerated display cabinet of claim 3 or 4, wherein the first, second and third wind deflectors are made of metal or plastic.

8. A refrigerated display cabinet as claimed in any one of claims 1 to 3 wherein the shape of the opening conforms to the shape of the side of the evaporator.

9. The refrigerated display cabinet of claim 3 or 4, wherein the first, second and third wind deflectors are controlled by a stepper motor controller.

10. A refrigerated display cabinet as claimed in any one of claims 1 to 3 wherein the damper assembly is bolted to the opening of the bulkhead.

11. A refrigerated display cabinet as claimed in any one of claims 1 to 3 further comprising a fan disposed at or near the bottom end of the partition.