Dry ice cold chain temperature control box

Abstract

The utility model provides a dry ice cold chain temperature control box which comprises a box body internally provided with a storage space and a dry ice storage mechanism used for storing dry ice, one side, facing the storage space, of the dry ice storage mechanism is provided with an exhaust hole, and the other side of the dry ice storage mechanism is connected with a temperature control device through an air inlet hole. Dry ice gasification is accelerated through the temperature control device, so that the dry ice and air flow in the box body are circulated and interacted, and the technical effect of rapid temperature control and adjustment is achieved; the dry ice cold chain box overcomes the defects that an existing dry ice cold chain box is unbalanced in refrigeration area and large in part temperature difference in an air flow circulation mode. The temperature control adjusting mode is flexible and fast and can be applied to transportation and storage in the cold chain process in various fields, freezing, cold storage and heat preservation equipment does not need to be additionally installed, electric power or fuel oil resources do not need to be used, the manufacturing cost is low, and cleanliness and environment friendliness are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration and freezing cold chain products, in particular to a dry ice cold chain temperature control box. Background Art

[0002] Cold chain logistics refers to a systematic project that ensures the quality and performance of refrigerated and frozen goods in a specified low-temperature environment during production, storage, transportation, sales, and before consumption. Currently, cold chain transportation and storage often rely on cold chain equipment such as refrigerated and refrigerated vehicles and cold storage. These equipment have high manufacturing costs, are difficult to repair and maintain, and require fuel or a large amount of electricity supply, resulting in higher costs for cold chain logistics than other logistics systems.

[0003] The dry ice cold chain box is a refrigeration structure that uses dry ice as a cooling source. It has the advantages of large cooling capacity and fast cooling speed. It is widely used in vaccines, blood, biological preparations, precious medicinal materials, high-end foods, tissue samples and other items that require high preservation effects. The dry ice in the existing dry ice cold chain box is placed in a plastic interlayer, which has the disadvantages of uneven cooling area, large temperature difference between the top and the bottom, and difficult to control the cooling temperature. Utility Model Content

[0004] The problem to be solved by the utility model is that the existing dry ice cold chain box has uneven refrigeration area, large temperature difference between the top and the bottom, and the refrigeration temperature is difficult to control. In response to this, a dry ice cold chain temperature control box is provided, and the technical effect of realizing rapid temperature control and temperature adjustment by air circulation interaction in the box is used to solve such problems.

[0005] In order to solve the above technical problems, the utility model provides a dry ice cold chain temperature control box, comprising a box body with a storage space inside and a dry ice storage mechanism for storing dry ice, wherein the dry ice storage mechanism is provided with an exhaust hole on one side facing the storage space, and a temperature control device is connected to the other side through an air inlet hole, and the air inlet hole and the exhaust hole are arranged in a staggered manner;

[0006] The temperature control device comprises a circulation fan connected to the air inlet position, and the input end of the circulation fan is connected to the temperature sensor through a controller.

[0007] In a preferred embodiment: when the temperature inside the box is higher than a preset value, the temperature sensor senses and sends a signal back to the controller to drive the circulation fan to rotate. The rotation of the circulation fan drives the airflow in the storage space and the dry ice storage mechanism to quickly interact to achieve temperature regulation.

[0008] In a preferred embodiment: the box body is provided with a box door, and the box body controls the opening or closing of the box door by rotating a shaft.

[0009] In a preferred embodiment: a heat-insulating layer is embedded in the box body and the box door.

[0010] In a preferred embodiment: the inner wall of the box door is provided with a sealing strip which plays a blocking and sealing role.

[0011] In a preferred embodiment: the inner wall of the dry ice storage mechanism is provided with a heat preservation structure, and a dry ice feed port is opened at one end thereof facing the door, and an end cover is rotatably connected to one side of the dry ice feed port, and the end cover is locked on the dry ice feed port by a buckle.

[0012] In a preferred embodiment: the inner wall of the dry ice storage mechanism is provided with a heat preservation structure, and a dry ice feed port is opened at one end thereof facing the door, and an end cover is rotatably connected to one side of the dry ice feed port, and the end cover is magnetically attracted to cover the dry ice feed port.

[0013] In a preferred embodiment, the dry ice storage mechanism is detachably mounted on the upper part of the interior of the box.

[0014] In a preferred embodiment: moving wheels are arranged at the four corners of the bottom of the box.

[0015] Compared with the prior art, the technical solution of the utility model has the following beneficial effects:

[0016] The utility model places a dry ice storage mechanism inside the box, and accelerates the gasification of dry ice in the dry ice storage mechanism through a temperature control device, so that the dry ice interacts with the air circulation in the box to form an airflow dynamic field to achieve the technical effect of rapid temperature control and temperature adjustment; the airflow circulation method is adopted to overcome the disadvantages of the existing dry ice cold chain box, such as uneven refrigeration area and large temperature difference in parts; the temperature control adjustment method is flexible and fast and can be applied to transportation and storage in the cold chain process in various fields, without the need to install additional freezing, refrigeration and insulation equipment, with extremely low manufacturing cost, clean and environmentally friendly, and no need to use a large amount of electricity or fuel resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the appearance of the utility model;

[0018] Figure 2 is a first axial side schematic diagram of the dry ice storage mechanism;

[0019] Figure 3 It is a second axial side schematic diagram of the dry ice storage mechanism. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "installed / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted connection, 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 intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0023] Embodiment 1

[0024] In the boxes currently on the market that use dry ice for cold chain transportation, generally a small box containing dry ice is placed directly at the bottom of the box, or a plastic sleeve is used to wrap the dry ice and place it in the box. The dry ice sublimates into gaseous carbon dioxide. In the process of carbon dioxide changing from solid to gas, it absorbs a large amount of heat, thereby lowering the temperature inside the box. However, the carbon dioxide formed by the sublimation of dry ice is an inert gas. Since its density is greater than that of air, the generated carbon dioxide gathers at the bottom of the box, resulting in an uneven refrigeration area in the box, resulting in high temperature at the top and large temperature difference at the bottom, and the refrigeration temperature is difficult to control. In view of this, if Figure 1-3As shown, the present embodiment provides a dry ice cold chain temperature control box, which comprises a box body 11 with a storage space provided therein, and a dry ice storage mechanism 12 for storing dry ice is detachably installed in the storage space in the box body 11. The dry ice storage mechanism 12 cooperates with the temperature control device to rapidly circulate the gas in the storage space with the gas in the dry ice storage mechanism 12, and the temperature in the storage space is intelligently regulated by means of the temperature control device. The utility model makes full use of the dry ice cooling principle and regulates its cooling effect. It can be flexibly used in transportation and storage in the cold chain process in various fields without the need to install additional freezing, refrigeration and insulation equipment. It does not require the use of a large amount of electricity or fuel resources, has extremely low manufacturing costs, and has the application advantages of being clean and environmentally friendly.

[0025] Specifically, in this embodiment, the dry ice storage mechanism 12 is detachably mounted above the inside of the box, and an exhaust hole 121 is provided on one side of the dry ice storage mechanism 12 facing the storage space, and an air inlet 122 is provided on the other side thereof, and the exhaust hole 121 and the air inlet 122 are arranged in a staggered manner, and the air inlet 122 is connected to a temperature control device. When in use, the dry ice is placed in the dry ice storage mechanism 12, and the dry ice will become low-temperature mist after sublimation. The low-temperature mist escapes from the exhaust hole 121 of the dry ice storage mechanism 12 from top to bottom to the storage space inside the box to reduce the temperature in the box 11 and improve the cooling uniformity in the storage space. In addition, in order to prevent the temperature in the box 11 from being increased due to external influences, an insulation layer is embedded in the box 11 and in the door 111 connected to the box by a rotating shaft, and a sealing strip having a blocking and sealing effect is also provided on the inner wall of the door 111 to ensure the sealing effect in the storage space. In this way, the temperature in the box body 11 can be maintained within a certain temperature range, so that it meets the cold chain storage conditions.

[0026] From the perspective of structural characteristics, the shell of the dry ice storage mechanism 12 is made of metal, and an insulation structure layer is provided on the inner side wall and the top thereof. The provision of the insulation structure layer is conducive to the directional conduction of the temperature drop in the dry ice storage mechanism 12 to the storage space inside the box. The outer shell side wall of the dry ice storage mechanism 12 is provided with a convex 124 that is concavely and convexly nested with the groove 112 on the inner side wall of the box. The dry ice storage mechanism 12 is detachably installed above the inside of the box 11 through the limiting cooperation between the groove 112 and the convex 124. On the other hand, when cold chain transportation is not required, the dry ice storage mechanism 11 can be converted into an ordinary freight transport carrier by only taking it out along the groove 112. The form is flexible and changeable, and the coordination is high.

[0027] In addition, in this embodiment, a dry ice feed port is provided on one end surface of the dry ice storage mechanism 12 facing the door 111, and the side of the dry ice feed port is rotatably connected to an end cover 123 via a rotating shaft, and the end cover 123 is embedded in the dry ice feed port via a buckle 123-1.

[0028] From the functional characteristics of the structure, since the dry ice storage mechanism 12 is provided with an exhaust hole 121 on one side facing the storage space, and the other side is connected to a temperature control device through an air inlet 122, the temperature control device includes a circulating fan connected to the air inlet 122, and the input end of the circulating fan is connected to a temperature sensor through a controller. When the temperature in the storage space is higher than a preset value, the temperature sensor senses and sends a signal back to the controller, and the controller drives the circulating fan to rotate, and the hot air from the storage space is continuously transported to the dry ice storage mechanism, which accelerates the sublimation efficiency of the dry ice. At the same time, since the air inlet 122 and the exhaust hole 121 are respectively connected to the storage space to form an air flow circulation loop, the rotation of the circulating fan drives the gas in the storage space and the airflow in the dry ice storage mechanism 12 to interact rapidly, so as to achieve rapid adjustment between -35°C and 15°C. Similarly, when the temperature in the storage space is lower than the preset value, the temperature sensor senses a synchronization signal to the controller, the circulating fan stops rotating, the airflow in the dry ice storage mechanism 12 tends to be stable, and the sublimation rate of dry ice decreases. At this time, only a small amount of cold air escapes downward through the bottom steel plate of the dry ice storage mechanism 12 or the exhaust hole 121, and the temperature drop in the storage space tends to be stable. Based on this circulation adjustment method, a constant temperature state is achieved inside the dry ice cold chain temperature control box.

[0029] Taking into account the transshipment problem of cold chain logistics goods, this embodiment is provided with moving wheels 113 at the four corners of the bottom of the box body, which is more convenient and quick during movement and transfer.

[0030] Embodiment 2

[0031] Different from the previous embodiment, in this embodiment, a dry ice feed port is provided on an end surface of the dry ice storage mechanism 12 facing the box door 111, and an end cover 123 is rotatably connected to the side of the dry ice feed port. A magnet is inlaid on the inner side surface of the end cover 123, and the end cover 123 is firmly attached and covered on the dry ice feed port by utilizing the magnetism of the magnet. Compared with the traditional bolt anchor structure for locking the end cover 123, the magnetic attraction structure adopted in this embodiment has a simpler structural feature and is more convenient to operate.

[0032] The above is only a preferred specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the utility model within the technical scope disclosed by the utility model shall be deemed to infringe the protection scope of the utility model.

Claims

1. A dry ice cold chain temperature control box, characterized in that: It comprises a box body with a storage space inside and a dry ice storage mechanism for storing dry ice, wherein the dry ice storage mechanism is provided with an exhaust hole on one side facing the storage space, and a temperature control device is connected to the other side through an air inlet hole, and the air inlet hole and the exhaust hole are arranged in a staggered manner; The temperature control device comprises a circulation fan connected to the air inlet position, and the input end of the circulation fan is connected to the temperature sensor through a controller.

2. A dry ice cold chain temperature control box according to claim 1, characterized in that: When the temperature inside the box is higher than the preset value, the temperature sensor senses and sends a signal back to the controller to drive the circulation fan to rotate. The rotation of the circulation fan drives the airflow in the storage space and the dry ice storage mechanism to interact quickly to achieve temperature regulation.

3. A dry ice cold chain temperature control box according to claim 1, characterized in that: The box body is provided with a box door, and the box body controls the opening or closing of the box door by the rotation of the rotating shaft.

4. A dry ice cold chain temperature control box according to claim 3, characterized in that: A heat-insulating layer is embedded in the box body and the box door.

5. A dry ice cold chain temperature control box according to claim 3, characterized in that: The inner wall of the box door is provided with a sealing strip which plays a blocking and sealing role.

6. A dry ice cold chain temperature control box according to claim 3, characterized in that: The inner wall of the dry ice storage mechanism is provided with a heat preservation structure, and a dry ice feeding port is opened at one end thereof facing the box door. An end cover is rotatably connected to one side of the dry ice feeding port, and the end cover is locked on the dry ice feeding port by a buckle.

7. A dry ice cold chain temperature control box according to claim 3, characterized in that: The inner wall of the dry ice storage mechanism is provided with a heat preservation structure, and a dry ice feeding port is opened at one end thereof facing the box door. An end cover is rotatably connected to one side of the dry ice feeding port, and the end cover is magnetically attracted to cover the dry ice feeding port.

8. A dry ice cold chain temperature control box according to any one of claims 6 or 7, characterized in that: The dry ice storage mechanism is detachably mounted on the upper part of the interior of the box.

9. The dry ice cold chain temperature control box according to claim 1, characterized in that: The four corners at the bottom of the box are provided with moving wheels.

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