CN206291588U - Refrigerating equipment - Google Patents

Abstract

The utility model provides a refrigerating and freezing device. Wherein the refrigerating and freezing equipment includes: a box body, a storage space is defined in the box body, a storage container is arranged in the storage space, and a fresh-keeping space is defined inside the storage container; a door body is arranged on the front surface of the box body for The storage space is closed; the refrigeration system is configured to provide cold energy to the storage space; and the gas storage device stores carbon dioxide gas in it, and the outlet end of the gas storage device is connected with the fresh-keeping space in a controlled manner via the pipeline and the pipeline switching mechanism connected, and configured to provide carbon dioxide gas to the fresh-keeping space when the outlet end of the gas storage device is connected to the pipeline between the fresh-keeping space, so as to obtain a gas atmosphere conducive to food fresh-keeping in the fresh-keeping space. The refrigerating and freezing equipment of the utility model can improve the fresh-keeping effect of various food materials by obtaining a gas atmosphere with a certain concentration of carbon dioxide in the fresh-keeping space, and has strong versatility for controlled-atmosphere fresh-keeping.

Description

Refrigeration and freezing equipment

technical field

The utility model relates to the field of article storage, in particular to a refrigeration and freezing device.

Background technique

With the development of society and the improvement of people's living standards, and people's pace of life is getting faster and faster, people often buy a large number of items placed in various refrigeration and freezing equipment, but for leafy vegetables and melon and fruit ingredients, refrigeration and freezing The low temperatures in the appliance's storage space not only wrinkle and blotch the skin of these foods, but also affect their original taste and nutrition.

Modified atmosphere preservation technology generally refers to the technology of prolonging the storage life of food materials by adjusting the gas atmosphere (gas composition ratio or gas pressure) in the closed space where the storage is located. The basic principle is: in a certain closed space A gas atmosphere different from normal air components is obtained through various adjustment methods to inhibit the physiological and biochemical processes and microbial activities that cause the storage (usually food) to deteriorate. In particular, in this application, the discussed modified atmosphere fresh-keeping will be specifically aimed at the modified-atmosphere fresh-keeping technology that adjusts the ratio of gas components.

Those skilled in the art all know that normal air composition includes (by volume percentage, hereinafter the same): about 78% nitrogen, about 21% oxygen, about 0.939% rare gas (helium, neon, argon, krypton, xenon, radon), 0.031% carbon dioxide, and 0.03% other gases and impurities (eg, ozone, nitric oxide, nitrogen dioxide, water vapor, etc.). In the field of controlled atmosphere fresh-keeping, it is usually used to fill the closed space with nitrogen-rich gas to reduce the oxygen content to obtain a nitrogen-rich and oxygen-poor fresh-keeping gas atmosphere.

However, different types of ingredients have different requirements for the ratio of gas components. Adjusting the concentration of nitrogen and oxygen gas can only promote the freshness of a certain type of ingredients, but has no effect on the preservation of other ingredients, and cannot meet the freshness requirements of all ingredients.

Utility model content

One purpose of the utility model is to realize the versatility of the modified atmosphere preservation.

A further purpose of the utility model is to improve the storage effect of various items in the refrigerating and freezing equipment.

In particular, the utility model provides a refrigerator and freezer, which includes: a box body, a storage space is defined in the box, a storage container is arranged in the storage space, and a fresh-keeping space is defined inside the storage container ; the door body is arranged on the front surface of the box body to close the storage space; the refrigeration system is configured to provide cooling capacity to the storage space; and the gas storage device stores carbon dioxide gas in it, and the outlet end of the gas storage device It is controlled to communicate with the fresh-keeping space through the pipeline and the pipeline switching mechanism, and is configured to provide carbon dioxide gas to the fresh-keeping space under the condition that the outlet end of the gas storage device is connected to the pipeline between the fresh-keeping space, so that the fresh-keeping space Obtain a gas atmosphere that is conducive to food preservation.

Optionally, the gas storage device is a carbon dioxide gas storage tank.

Optionally, the refrigerating and freezing equipment further includes: a soda water preparation system, and the soda water preparation system includes a carbon dioxide gas storage tank.

Optionally, the refrigerating and freezing equipment further includes: a gas concentration sensor disposed in the fresh-keeping space to detect the actual concentration of carbon dioxide in the fresh-keeping space.

Optionally, the gas atmosphere favorable for food preservation includes: the actual concentration of carbon dioxide is 20% to 80%.

Optionally, the storage container is a sealed drawer, and the fresh-keeping space is defined by the sealed drawer.

Optionally, the box body includes: an inner container defining a storage space therein.

Optionally, the airtight drawer includes: a drawer cylinder with a front opening, fixed to an inner tank, and a fresh-keeping space is defined therein; and a drawer body, slidably installed in the drawer cylinder, so that The drawer barrel is operable to be withdrawn outwardly and inserted inwardly toward the opening.

Optionally, a plurality of air pressure balance holes are opened on the drawer cylinder to communicate with the storage space and the fresh-keeping space.

Optionally, a compressor chamber is defined inside the box, and the refrigeration system is a compression refrigeration system including a compressor, and the compressor and the gas storage device are arranged in the compressor chamber.

The refrigerating and freezing equipment of the present utility model is provided with a gas storage device for storing carbon dioxide gas, and the outlet end of the gas storage device is controlled to communicate with the fresh-keeping space in the storage space of the refrigerating and freezing equipment through the pipeline and the pipeline switching mechanism. When the outlet end of the gas storage device is connected to the pipeline between the fresh-keeping space, the gas storage device can provide carbon dioxide gas to the fresh-keeping space to obtain a gas atmosphere with a certain concentration of carbon dioxide in the fresh-keeping space. The concentration can improve the preservation effect of various ingredients, and the modified atmosphere preservation has strong versatility.

Further, the gas storage device of the refrigerating and freezing equipment of the present invention can be arranged in the compressor compartment without occupying other places, so the extra volume of the refrigerating and freezing equipment will not be increased, and the structure of the refrigerating and freezing equipment can be made compact. , the refrigeration and freezing equipment may include a soda water preparation system, the soda water preparation system includes a carbon dioxide gas storage tank, the carbon dioxide gas storage tank is used as a gas storage device to provide carbon dioxide gas to the fresh-keeping space, and the carbon dioxide gas storage tank for preparing soda water is used to provide carbon dioxide to the fresh-keeping space The gas is used to realize the fresh-keeping under the modified atmosphere, which can avoid the additional installation of gas storage devices, save the installation space and effectively reduce the cost.

According to the following detailed description of specific embodiments of the utility model in conjunction with the accompanying drawings, those skilled in the art will be more aware of the above and other objectives, advantages and features of the utility model.

Description of drawings

Hereinafter, some specific embodiments of the present utility model will be described in detail in an exemplary rather than restrictive manner with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic structural diagram of a refrigerating and freezing device according to one embodiment of the present invention;

Fig. 2 is a schematic partial structural diagram of a refrigerating and freezing device according to an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of another perspective of the structure shown in Fig. 2;

Fig. 4 is a structural schematic diagram of a sealed drawer in a refrigerating and freezing device according to an embodiment of the present invention; and

Fig. 5 is a schematic diagram of the connection structure between the air storage device and the sealed drawer in the refrigerating and freezing equipment according to an embodiment of the present invention.

detailed description

This embodiment provides a refrigerating and freezing device, where the refrigerating and freezing device may be a refrigerator, a freezer, or the like. Fig. 1 is a schematic structural diagram of a refrigerating and freezing device 100 according to an embodiment of the present utility model; Fig. 2 is a schematic partial structural view of a refrigerating and freezing device 100 according to an embodiment of the present utility model; Fig. 3 is shown in Fig. 2 Schematic block diagram of another view of the structure. The refrigerating and freezing device 100 of this embodiment may generally include: a box body 10 , a door body, a refrigeration system, and an air storage device 30 .

Wherein, a storage space 102 and a compressor compartment 103 are defined inside the box body 10 . The number and structure of the storage space 102 can be configured according to the requirements. Figure 1 shows the situation of the first space, the second space and the third space arranged up and down in sequence; the above spaces can be configured as cold storage space and freezing space according to different purposes. , temperature-changing space or fresh-keeping space. Each storage space can be divided into multiple storage areas by partition boards, and items can be stored using shelves or drawers. A storage container may be provided in the storage space 102, and a fresh-keeping space is defined inside the storage container.

The door is disposed on the front surface of the box body 10 for closing the storage space 102 . The door body can be set corresponding to the storage space, that is, each storage space corresponds to one or more door bodies. And the quantity of storage space and door body, the function of storage space can be selected by actual situation. The refrigerating and freezing equipment 100 of this embodiment corresponds to the first space, the second space, and the third space arranged up and down in sequence, and is respectively provided with a first door body 21 , a second door body 22 , and a third door body 23 . The door body can be pivotally arranged on the front surface of the box body, and can also be opened in a drawer type to realize a drawer-type storage space, wherein the drawer-type storage space is often equipped with metal slide rails, which can ensure that the drawer is opened and closed during the process of opening and closing. The effect is gentle and reduces noise. In the refrigerating and freezing apparatus 100 of this embodiment, the door opening method of the first space is pivotal opening, and the door opening methods of the second space and the third space are drawer opening.

As shown in FIG. 2 , the storage container can be a sealed drawer 11 , and the fresh-keeping space is defined by the sealed drawer 11 . In some optional embodiments, the above-mentioned fresh-keeping space may also be defined by a sealed box, a sealed tank, a sealed box, and the like.

As shown in FIG. 3 , the box body 10 may include an inner container 101 defining a storage space 102 therein. Fig. 4 is a schematic structural diagram of the sealed drawer 11 in the refrigerating and freezing device 100 according to an embodiment of the present invention. As shown in Figure 4, the sealed drawer 11 includes: a drawer cylinder 12, which has a forward opening, and is fixed to an inner container 101, which defines a fresh-keeping space; and a drawer body 13, which is slidably installed in the drawer cylinder 12 , so as to be operatively drawn out and inserted into the drawer barrel 12 from the front opening of the drawer barrel 12 . The drawer cylinder 12 can be arranged at the lower part of the inner container, and in some other embodiments, the drawer cylinder 12 can also be arranged at the middle or upper part of the inner container. In this embodiment, the liner 101 and the drawer cylinder 12 can be integrally formed, or formed separately and then installed.

A plurality of air pressure balance holes may be opened on the drawer cylinder 12 to communicate with the storage space 102 and the fresh-keeping space. Each air pressure balance hole may be a millimeter-scale micro hole, for example, the diameter of each air pressure balance hole may be 0.1 mm to 3 mm. Setting multiple air pressure balance holes can balance the pressure inside and outside the fresh-keeping space. The setting of multiple air pressure balance holes will not make the gas in the fresh-keeping space flow to the large storage space, even if the flow is small or even negligible. It will not affect the preservation of food in the fresh-keeping space. In some other embodiments, the air pressure balance hole may not be set on the drawer cylinder 12. Even so, there is still a large amount of gas in the fresh-keeping space, such as nitrogen and oxygen that originally existed in the fresh-keeping space, and the gas storage device 30 sends air to the fresh-keeping space. With the carbon dioxide gas filled in the fresh-keeping space, the user does not need to exert too much effort when opening the drawer body 13. Compared with the existing vacuum storage room, it will greatly save labor.

Fig. 5 is a schematic diagram of the connection structure between the air storage device 30 and the sealed drawer 11 in the refrigerating and freezing device 100 according to an embodiment of the present invention. The gas storage device 30 stores carbon dioxide gas in it, and the outlet end of the gas storage device 30 communicates with the fresh-keeping space defined by the sealed drawer 11 through the pipeline 31 and the pipeline switching mechanism 32 in a controlled manner, and is configured to store gas When the outlet end of the device 30 is in communication with the pipeline between the fresh-keeping space, carbon dioxide gas is provided to the fresh-keeping space to obtain a gas atmosphere in the fresh-keeping space that is favorable for keeping food fresh. Filling the fresh-keeping space with carbon dioxide gas will not affect the relative ratio of nitrogen and oxygen in the fresh-keeping space, but will increase the proportion of carbon dioxide gas in the fresh-keeping space gas.

The refrigerating and freezing device 100 further includes: a gas concentration sensor disposed in the fresh-keeping space to detect the actual concentration of carbon dioxide in the fresh-keeping space. The gas atmosphere conducive to food preservation includes: the actual concentration of carbon dioxide is 20% to 80%.

As a product of respiration, carbon dioxide gas can inhibit the process of aerobic respiration of fruit and vegetable foods by increasing the concentration of carbon dioxide, and inhibit the degradation of pectin substances and chlorophyll, thereby delaying the ripening process of food. In addition, during meat storage, increasing the concentration of carbon dioxide can inhibit the reproduction of aerobic bacteria and mold, prolong the stagnation period of bacteria and delay their exponential growth period.

The inventor found through many experiments that food materials, such as chilled fresh meat, can be stored in the fresh-keeping space under a certain temperature condition, such as -2°C. By providing different amounts of carbon dioxide to the fresh-keeping space, the concentration of carbon dioxide in the fresh-keeping space is different. Under the same temperature and different carbon dioxide concentration conditions, with the increase of carbon dioxide concentration, the total number of colonies in chilled fresh meat decreased, and the juice loss rate after thawing also decreased. And when the carbon dioxide concentration in the fresh-keeping space is 20% to 80%, it is a gas atmosphere conducive to food preservation, which can comprehensively improve the fresh-keeping effect of various ingredients. At the same time, keeping the temperature in the fresh-keeping space within a certain range can help improve the fresh-keeping effect of ingredients. Different ingredients can correspond to different suitable storage temperatures. For example, the refrigeration temperature of fruit and vegetable ingredients is generally 2°C to 8°C, the refrigeration temperature of chilled fresh meat ingredients is generally -2°C to 1°C, and the freezing temperature of various ingredients is generally -22°C to -14°C. Increasing the carbon dioxide concentration in the fresh-keeping space and keeping the temperature in the fresh-keeping space within a suitable storage temperature range for various ingredients can effectively improve the fresh-keeping effect of various ingredients. It should be noted that the specific values of the above storage temperatures are only examples, not limitations of the present invention.

Driving the pipeline switching mechanism 32 to connect the outlet end of the gas storage device 30 to the pipeline of the fresh-keeping space can be done manually by the user, for example, when the gas concentration sensor detects that the actual concentration of carbon dioxide in the fresh-keeping space is less than 20%, by outputting a prompt message Remind the user to turn on the modified atmosphere fresh-keeping function, so that the user uses the pipeline switching mechanism 32 to connect the outlet end of the gas storage device 30 to the pipeline of the fresh-keeping space. The prompt message can be an alarm sound issued by a buzzer. In other embodiments, automatic setting can also be performed, and the pipeline switching mechanism 32 is configured to: when the gas concentration sensor detects that the actual concentration of carbon dioxide in the fresh-keeping space is less than 20%, automatically connect the outlet end of the gas storage device 30 to the fresh-keeping space. space, and when the actual concentration of carbon dioxide is greater than 20%, the pipeline from the outlet end of the gas storage device 30 to the fresh-keeping space is automatically closed.

The gas storage device 30 that provides carbon dioxide gas to the fresh-keeping space may be a carbon dioxide gas storage tank. In a preferred embodiment, the refrigerating and freezing device 100 further includes: a soda water preparation system, and the soda water preparation system includes a carbon dioxide gas storage tank. Sparkling water is made by pressing carbon dioxide from a carbon dioxide tank into drinking water. Using the carbon dioxide gas storage tank for preparing soda water to provide carbon dioxide gas to the fresh-keeping space to achieve controlled atmosphere preservation can avoid additional gas storage devices, save installation space, and effectively reduce costs.

The refrigeration system of the refrigerator-freezer 100 is configured to provide cooling to the storage space 102 . The refrigeration system in this embodiment may be a refrigeration cycle system composed of a compressor, a condenser, a throttling device, an evaporator, and the like. The compressor is installed in the compressor chamber 103 . The evaporator is configured to directly or indirectly provide cold energy into the storage space. For example, when the refrigerating and freezing equipment is a domestic compression direct cooling refrigerator, the evaporator can be arranged outside or inside the rear wall of the inner container. When the refrigerating and freezing equipment is a household compression air-cooled refrigerator, there is also an evaporator room in the box body 10, and the evaporator room communicates with the storage space 102 through the air duct system, and an evaporator is arranged in the evaporator room, and an evaporator is provided at the outlet. The fan is used to circulate refrigeration to the storage space 102 .

Both the compressor and the gas storage device 30 of this embodiment can be arranged in the compressor chamber 103 . The compressor and the gas storage device 30 can be respectively arranged at both ends of the compressor chamber 103 to prevent the heat generated by the compressor from affecting the storage of carbon dioxide gas in the gas storage device 30 . The gas storage device 30 is arranged in the compressor compartment 103, which can make full use of the space of the compressor compartment and does not occupy other places. Therefore, the extra volume of the refrigeration and freezing equipment will not be increased, and the structure of the refrigeration and freezing equipment can be made compact.

The refrigerating and freezing equipment 100 of this embodiment is provided with a gas storage device 30 for storing carbon dioxide. The fresh-keeping space is connected. When the outlet end of the gas storage device 30 is connected to the pipeline between the fresh-keeping space, the gas storage device 30 can provide carbon dioxide gas to the fresh-keeping space to obtain a gas atmosphere with a certain concentration of carbon dioxide in the fresh-keeping space. By increasing the concentration of carbon dioxide in the fresh-keeping space, the fresh-keeping effect of various food materials can be improved, and the modified atmosphere fresh-keeping has strong versatility.

Further, the gas storage device 30 of the refrigerating and freezing equipment 100 of this embodiment can be arranged in the compressor chamber 103 without occupying other places, so the extra volume of the refrigerating and freezing equipment will not be increased, and the structure of the refrigerating and freezing equipment can be improved. Compact, in addition, the refrigerating and freezing equipment 100 can include a soda water preparation system, and the soda water preparation system includes a carbon dioxide gas storage tank, and the carbon dioxide gas storage tank serves as a gas storage device to provide carbon dioxide gas to the fresh-keeping space, and the carbon dioxide gas storage tank for preparing soda water is used to supply The fresh-keeping space provides carbon dioxide gas to achieve controlled atmosphere fresh-keeping, which can avoid additional gas storage devices, save installation space, and effectively reduce costs.

So far, those skilled in the art should recognize that although a number of exemplary embodiments of the present invention have been shown and described in detail herein, they can still be used according to the present invention without departing from the spirit and scope of the present invention. Many other variations or modifications that conform to the principles of the utility model are directly determined or derived from the disclosed content of the new model. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. A refrigeration and freezing device, comprising: A box body, a storage space is defined in the box, a storage container is arranged in the storage space, and a fresh-keeping space is defined inside the storage container; a door body, arranged on the front surface of the box body, for closing the storage space; a refrigeration system configured to provide cooling to the storage space; and A gas storage device, in which carbon dioxide gas is stored, the outlet end of the gas storage device communicates with the fresh-keeping space in a controlled manner via a pipeline and a pipeline switching mechanism, and is configured to be connected to the fresh-keeping space at the outlet end of the gas storage device When the pipelines between the fresh-keeping spaces are connected, carbon dioxide gas is provided to the fresh-keeping spaces to obtain a gas atmosphere favorable for food fresh-keeping in the fresh-keeping spaces. 2. The refrigerator and freezer according to claim 1, characterized in that, The gas storage device is a carbon dioxide gas storage tank. 3. The refrigerator and freezer according to claim 2, further comprising: A soda water preparation system, the soda water preparation system includes the carbon dioxide gas storage tank. 4. The refrigerator and freezer according to claim 1, further comprising: A gas concentration sensor is arranged in the fresh-keeping space to detect the actual concentration of carbon dioxide in the fresh-keeping space. 5. The refrigerating and freezing device according to claim 4, wherein the gas atmosphere conducive to food preservation comprises: The actual concentration of carbon dioxide is 20% to 80%. 6. The refrigerator and freezer according to claim 1, characterized in that, The storage container is a sealed drawer, and the fresh-keeping space is defined by the sealed drawer. 7. The refrigerator and freezer according to claim 6, wherein the box comprises: The inner container defines the storage space inside. 8. The refrigerator and freezer according to claim 7, wherein the sealed drawer comprises: The drawer cylinder has a forward opening and is fixed to the inner container, defining the fresh-keeping space therein; and The drawer body is slidably installed in the drawer cylinder, so as to be operable to be drawn out from the front opening of the drawer cylinder and inserted inward into the drawer cylinder. 9. The refrigerator and freezer according to claim 8, characterized in that, A plurality of air pressure balance holes are opened on the drawer cylinder to communicate with the storage space and the fresh-keeping space. 10. The refrigerator and freezer according to claim 1, characterized in that, A compressor compartment is also defined inside the box, and The refrigeration system is a compression refrigeration system including a compressor, and the compressor and the gas storage device are arranged in the compressor chamber.