Display cabinet with heat preservation curtain

Abstract

The utility model relates to the technical field of display cabinets, and provides a display cabinet with a heat preservation curtain, which comprises a cabinet body and a cabinet door arranged on one side of the cabinet body, an inner container is arranged in the cabinet body, and the heat preservation curtain is arranged on the upper portion of the inner container and attached to the inner side of the cabinet door. The heat preservation curtain comprises a driving wheel rotatably installed in the inner container, a curtain body wound on the driving wheel and a motor which is coaxial with the driving wheel and drives the driving wheel to rotate to wind and unwind the curtain body, and the heat preservation curtain can descend and shield the inner side of the cabinet door during power failure to preserve heat of articles in the display cabinet. And the melting rate of articles placed in the cabinet body is slowed down.

Description

TECHNICAL FIELD

[0001] The utility model relates to display cabinet technical field provides a display cabinet with thermal curtain. BACKGROUND

[0002] Display cabinet, especially the freezing display cabinet for selling ice cream and other products needing freezing, when power failure occurs, the sealing property of the cabinet door side in the use process of the display cabinet is poor, the temperature in the display cabinet is prone to rapidly rising due to heat exchange with the outside world and sunlight irradiation and other reasons, leading to the melting of the goods stored in the display cabinet, causing loss to the merchant. SUMMARY

[0003] In order to solve the problems in the prior art, the utility model provides a display cabinet with thermal curtain, including the cabinet body and the cabinet door installed in one side of the cabinet body, the inner container is arranged in the cabinet body, the upper portion of the inner container is provided with the thermal curtain which is attached to the inner side of the cabinet door, the thermal curtain includes the driving wheel rotatably installed in the inner container, the curtain body wound on the driving wheel and the motor coaxially arranged with the driving wheel to drive the driving wheel to rotate and wind or lower the curtain body, the thermal curtain can be lowered and shielded on the inner side of the cabinet door, and the melting rate of the goods placed in the cabinet body is slowed down.

[0004] Specifically, one end of the curtain body is a connecting end, and the connecting end is fixedly connected with the driving wheel, the other end of the curtain body is a free end, and the free end is vertically arranged above the inner side of the cabinet door, and a weight is arranged on the free end of the curtain body.

[0005] Specifically, the thermal curtain further comprises a driven wheel, and the curtain body is wound between the driving wheel and the driven wheel.

[0006] Specifically, a strip-shaped groove is arranged in the driving wheel, the connecting end of the curtain body is provided with a protrusion matched with the strip-shaped groove, and the protrusion is clamped in the groove of the driving wheel.

[0007] Specifically, a backup power supply is arranged in the cabinet body, and the motor is connected in the backup power supply.

[0008] Specifically, the curtain body is made of multiple layers of materials, including a sun-proof layer, a thermal insulation layer, a cold storage layer and a base layer arranged in sequence from outside to inside.

[0009] Specifically, the sun-proof layer is arranged on the side close to the cabinet door and is made of aluminum foil; the thermal insulation layer is arranged on the inner side of the sun-proof layer, the thermal insulation layer is heat insulation cotton; the cold storage layer is arranged on the inner side of the thermal insulation layer, and flexible cold storage material is arranged in the cold storage layer; and the base layer is arranged on the side of the curtain body close to the inner chamber of the cabinet and is made of low-temperature resistant PVC material.

[0010] Specifically, the flexible cold storage material is a composite gel phase change material.

[0011] Specific, the cabinet is provided with an alarm device, the alarm device is connected in the standby power supply.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] 1、The utility model discloses a heat preservation curtain, when power failure, heat preservation curtain can descend and shield in the inside of cabinet door, and the article in the show cabinet is heat preserved, and the melting rate of the article placed in the show cabinet is reduced, and the loss of goods is reduced.

[0014] 2、The heat preservation curtain of the utility model is made of sunscreen layer, heat preservation layer, cold storage layer and base layer, effectively prolongs the heat preservation time of heat preservation curtain, and the heat preservation effect of the show cabinet is enhanced. DRAWINGS

[0015] Figure 1 It is the cross section view of the show cabinet of the heat preservation curtain winding state of the utility model;

[0016] Figure 2 It is the cross section view of the show cabinet of the heat preservation curtain descending state of the utility model;

[0017] Figure 3 It is the enlarged view of the upper structure of the show cabinet of the utility model;

[0018] Figure 4 It is the structure schematic diagram of the heat preservation curtain of the utility model.

[0019] Reference signs: 1, cabinet body;2, cabinet door;3, driving wheel;31, strip-shaped recess;4, curtain body;41, sunscreen layer;42, heat preservation layer;43, cold storage layer;44, base layer;45, protrusion;5, driven wheel;6, weight;7, air curtain air duct;8, refrigeration air duct;9, tubular air duct. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. The specific implementation of the utility model will be described in detail below in combination with specific embodiments.

[0021] In the description of the present application, it needs to be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0022] A display cabinet with a heat preservation curtain, comprising a cabinet body 1 and a cabinet door 2, the cabinet body 1 has an inner container for storing goods, such as storing ice cream and other products that need to be frozen, an opening is provided on one side of the cabinet body 1, and the cabinet door 2 is movably arranged at the opening for closing or opening the opening, the cabinet door 2 is a glass door, which is convenient for customers to select goods in the cabinet.

[0023] The sealing performance of the cabinet door 2 on one side of the display cabinet is poor during use, and the temperature in the cabinet body 1 will rise due to heat exchange with the outside and sunlight, etc. when the display cabinet is powered off, which will cause the goods stored in the cabinet body 1 to melt and cause loss to the merchant. In order to prolong the melting rate of the goods placed in the display cabinet when the display cabinet is powered off due to power failure, etc., a heat preservation curtain is arranged on one side of the cabinet door 2 of the display cabinet, which can block the inside of the cabinet door 2 when powered off, and can heat the goods in the display cabinet. It can also block to inform customers that the current display cabinet cannot be used, so as to avoid customers opening the display cabinet in the state of power failure of the display cabinet, and further accelerate the melting speed of the goods in the cabinet.

[0024] The heat preservation curtain is installed on the upper part of the cabinet body 1, and comprises a driving wheel 3, a motor and a curtain body 4. The driving wheel 3 is in a cylindrical shape and is rotatably installed in the inner container. A motor is arranged on one side of the driving wheel 3, and the motor is preferably a stepping motor. The motor is fixedly installed in the cabinet body 1, and an output shaft of the motor is coaxially arranged with the driving wheel 3 to drive the driving wheel 3 to rotate and control the winding and lowering of the heat preservation curtain. The heat preservation curtain is in a rolled-up state in the normal use of the display cabinet, the curtain body 4 is wound on the outside of the driving wheel 3, one end of the curtain body 4 is a connecting end, and the connecting end is fixedly connected with the driving wheel 3. The other end of the curtain body 4 is a free end, and the free end freely hangs above the inside of the cabinet door 2. A weight 6 is arranged on the hanging end of the curtain body 4, and the curtain body 4 gradually lowers under the pulling of the weight 6 when the motor is started. In some embodiments, a driven wheel 5 is further arranged in the heat preservation curtain, one end of the curtain body 4 is fixedly arranged in the driving wheel 3, and the curtain body 4 is wound between the driving wheel 3 and the driven wheel 5.

[0025] In some embodiments, a strip-shaped groove 31 is arranged in the driving wheel 3, and the connecting end of the curtain body 4 is provided with a protrusion 45 matched with the strip-shaped groove 31. The protrusion 45 is clamped in the groove of the driving wheel 3 to be fixedly connected with the driving wheel 3.

[0026] A main power supply, a backup power supply and an automatic switching switch respectively connected in the main power supply and the backup power supply are arranged in the cabinet body 1. When the main power supply is powered off, the automatic switching switch automatically switches the power supply line to the backup power supply. The motor is connected to the backup power supply, the motor drives the driving wheel 3 to rotate, the heat preservation curtain gradually lowers under the pulling of the weight 6, covers the inside of the glass of the cabinet door 2, and preserves the goods in the cabinet to slow down the melting rate of the goods placed in the display cabinet. When the main power supply is connected, the output shaft of the motor reversely rotates to wind the curtain body 4.

[0027] The curtain body 4 is made of multiple layers of composite materials, including a sun-proof layer 41, a heat preservation layer 42, a cold storage layer 43 and a base layer 44 arranged from outside to inside. The sun-proof layer 41 is arranged close to the cabinet door 2, and is made of aluminum foil to reflect sunlight and reduce the absorption of heat by the curtain body 4. The heat preservation layer 42 is arranged on the inside of the sun-proof layer 41, and is made of heat insulation cotton which has a low thermal conductivity to preserve and insulate the goods in the cabinet. The cold storage layer 43 is arranged on the inside of the heat preservation layer 42, and flexible cold storage material is arranged in the cold storage layer 43. When the cabinet body 1 is powered off, the cold storage layer 43 maintains the curtain body 4 at a low temperature to prolong the storage time of the objects stored in the cabinet body 1 and preserve the objects in the cabinet. The cold storage material is a composite gel phase change material with high latent heat of phase change, a gel-like cold storage agent with appropriate viscosity and stable distribution in the heat preservation curtain. The base layer 44 is arranged on the side of the curtain body 4 close to the inner chamber of the cabinet, and is made of low-temperature-resistant PVC material to provide structural strength for the curtain body 4.

[0028] In some embodiments, the refrigeration air duct 8 for producing low-temperature air in the cabinet 1 and the air curtain air duct 7 for producing air curtain when the door is opened are arranged in the showcase, and the heat preservation curtain is installed in the air curtain air duct 7. On one side of the heat preservation curtain, the tubular air duct 9 for one-way communication between the refrigeration air duct 8 and the air curtain air duct 7 is arranged, the tubular air duct 9 is arranged in the heat preservation layer 42 of the cabinet 1, the air inlet of the tubular air duct 9 is arranged at the outlet of the refrigeration air duct 8, and the air outlet of the tubular air duct 9 is between the driving wheel 3 and the driven wheel 5. Part of the low-temperature air is transported to the air curtain air duct 7 through the tubular air duct 9, and the cold air transported by the tubular air duct 9 is stored in the cold storage layer 43 under normal refrigeration of the showcase, so that the heat preservation curtain is always maintained at a lower temperature.

[0029] When the heat preservation curtain is lowered after the showcase is powered off, the sunscreen layer 41 and the heat preservation layer 42 block the heat loss in the cabinet 1, the phase change latent heat stored in the cold storage layer 43 further maintains the temperature stability in the showcase, prolongs the heat preservation time of the heat preservation curtain, enhances the heat preservation effect of the showcase, and significantly prolongs the melting time of the goods in the cabinet.

[0030] In some embodiments, the alarm device is also arranged in the cabinet 1, and the alarm device is connected to the backup power supply. When the showcase is powered off, the alarm device sends an alarm to prompt the merchant to take the goods in time to avoid loss caused by melting of the goods.

[0031] The above is only the preferred embodiment of the present application, and does not limit other forms of the present application. Any skilled person in the art can modify or change the above disclosed technical content to obtain equivalent embodiments. However, any simple modification, equivalent change and modification of the above embodiments without departing from the technical scheme of the present application, and according to the technical essence of the present application, still belong to the protection scope of the technical scheme of the present application.

Claims

1. A display case having a thermal curtain, characterized in that, The utility model provides a cabinet door (2) and cabinet body (1) are installed on one side of cabinet body (1), the cabinet body (1) has the inner container in, the upper portion of the inner container, the inner side of cabinet door (2) is provided with the heat preservation curtain, the heat preservation curtain includes rotatable installation in the inner container drive wheel (3), the curtain body (4) of winding on drive wheel (3) and the motor of coaxial setting drive wheel (3) rotation and unroll the curtain body (4) of driving drive wheel (3), the heat preservation curtain can be lowered and shielded in the inner side of cabinet door (2), slow down the melting rate of the article placed in cabinet body (1).

2. The display case with a thermal curtain according to claim 1, characterized in that: One end of the curtain body (4) is a connecting end, fixedly connected with the drive wheel (3), the other end of the curtain body (4) is a free end, freely hanging above the inner side of the cabinet door (2), a weight (6) is arranged at the free end of the curtain body (4).

3. The display case with a thermal curtain according to claim 2, characterized in that: The heat preservation curtain further comprises a driven wheel (5), and the curtain body (4) is wound between the drive wheel (3) and the driven wheel (5).

4. The display case with a thermal curtain of claim 2, wherein: The drive wheel (3) is provided with a strip-shaped groove (31), and the connecting end of the curtain body (4) is provided with a protrusion (45) matched with the strip-shaped groove (31), the protrusion (45) is clamped in the groove of the drive wheel (3).

5. The display case with a thermal curtain of claim 1, wherein: The cabinet body (1) is provided with a backup power supply, and the motor is connected in the backup power supply.

6. The display case with a thermal curtain of claim 1, wherein: The curtain body (4) is made of multiple layers of composite materials, including a sun protection layer (41), a heat preservation layer (42), a cold storage layer (43) and a base layer (44) arranged from outside to inside.

7. The display case with a thermal curtain according to claim 6, characterized in that: The sun protection layer (41) is arranged on the side close to the cabinet door (2) and is made of aluminum foil; the heat preservation layer (42) is arranged on the inner side of the sun protection layer (41), and the heat preservation layer (42) is heat insulation cotton; the cold storage layer (43) is arranged on the inner side of the heat preservation layer (42), and flexible cold storage material is arranged in the cold storage layer (43); the base layer (44) is arranged on the side of the curtain body (4) close to the cabinet inner chamber and is made of low-temperature-resistant PVC material.

8. The display case with a thermal curtain according to claim 7, characterized in that: The flexible cold storage material is a composite gel phase change material.

9. The display case with a thermal curtain of claim 5, wherein: The cabinet body (1) is provided with an alarm device, and the alarm device is connected in the backup power supply.

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