A variable volume cold box

Abstract

The present application relates to the technical field of refrigeration box, in particular to a variable volume refrigeration box, which comprises a refrigeration box, a refrigeration system and an inflation system; one side of the second compressor is provided with a gas storage tank for storing argon; the refrigeration box and the inflation system are arranged: the refrigeration box is composed of the first box body and the liftable second box body; when the electromagnetic valve is opened, the argon in the gas storage tank is filled into the air bag through the pipeline, the air bag can lift the second box body upward to make the second box body rise, and the volume of the inner cavity of the first box body and the second box body increases with the rising of the second box body; when the electromagnetic valve is closed, the argon in the air bag is re-compressed into the gas storage tank through the pipeline and the second compressor, and the second box body can descend; the design adjusts the height of the second box body, adjusts the refrigeration volume of the refrigeration box, is suitable for the refrigeration demand of different sizes of articles, and has the advantages of convenient transportation and convenient storage.

Description

Technical Field

[0001] This invention relates to the field of refrigerator technology, specifically a refrigerator with variable volume. Background Technology

[0002] Refrigerated boxes are refrigeration equipment used to refrigerate food, medicine and other items. According to their use, they can be divided into food refrigerated boxes and medicine refrigerated boxes. At present, refrigerated boxes can both refrigerate and keep warm. The internal temperature can be maintained below 8°C for more than 80 hours, making them suitable for various medium and long-distance low-temperature transportation.

[0003] Currently, the internal refrigeration space of a refrigerator is fixed during use. For some large items, this fixed refrigeration space is insufficient to meet refrigeration needs. If a large-capacity refrigerator is used, it means that the refrigerator will have a large volume, which imposes strict space requirements on transportation and placement. Therefore, we propose a refrigerator with variable volume. Summary of the Invention

[0004] The purpose of this invention is to provide a variable-volume refrigerator to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A variable-volume refrigerator includes a refrigerator, a refrigeration system, and an inflation system;

[0007] The refrigerator includes a first box body with an open top, an electrical cavity at the bottom of the first box body, a clamping groove at the top of the first box body, a first cabinet door hinged to the front of the first box body, and a slot at the top surface of the first cabinet door; a second box body with an open bottom and adjustable height is provided above the first box body, the second box body is inserted into the clamping groove and can be raised and lowered along the clamping groove, the front of the second box body is hinged to a second cabinet door, the second cabinet door is inserted into the slot and can be raised and lowered along the slot;

[0008] The refrigeration system used for refrigerating the refrigerator is located inside the electrical cavity;

[0009] The inflation system includes a second compressor installed at the bottom of the electrical cavity, and a gas storage tank for storing argon is installed on one side of the second compressor; an airbag for driving the second box to rise and fall is provided between the first box and the second box, and the second compressor, the gas storage tank and the airbag form a circuit for argon to flow through multiple pipelines; the airbag includes a first bladder located in the inner cavity of the first box and the second box, and the airbag also includes a second bladder located in the inner cavity of the first cabinet door and the second cabinet door, and the first bladder and the second bladder are connected by a connector.

[0010] As a preferred embodiment of the present invention, the refrigeration system includes a first compressor installed at the bottom of the electrical cavity, a condenser installed on one side of the first compressor, an evaporator installed on the inner wall of the first housing, and an evaporation fan installed on one side of the evaporator.

[0011] As a preferred technical solution of the present invention, casters are installed at the four corners of the bottom of the first box, and the casters are fixedly connected to the first box by bolts.

[0012] As a preferred technical solution of the present invention, a detachable maintenance door is installed on the front side of the electrical cavity, and the maintenance door is fixedly connected to the first housing by bolts, and a controller is fixedly connected to the outer wall of the maintenance door by bolts.

[0013] As a preferred technical solution of the present invention, an electromagnetic valve for controlling the opening and closing of the pipeline is provided on the connecting pipeline between the gas storage tank and the air bag.

[0014] As a preferred technical solution of the present invention, a sealing gasket is adhered to one end face of the second bladder near the second box body, and the sealing gasket passes through the second cabinet door and abuts against the front end face of the second box body.

[0015] As a preferred technical solution of the present invention, the first box body has a first guide groove on both outer walls, and the second box body has a first guide block installed on both outer walls, and the first guide block is slidably connected to the first guide groove.

[0016] As a preferred technical solution of the present invention, the outer walls on both sides of the first cabinet door are provided with second guide grooves, and the outer walls on both sides of the second cabinet door are provided with second guide blocks, and the second guide blocks are slidably connected to the second guide grooves.

[0017] As a preferred technical solution of the present invention, a magnetic block is embedded at one corner of the top of the second cabinet door, and the magnetic block is magnetically connected to the second cabinet body.

[0018] As a preferred technical solution of the present invention, a temperature sensor is installed on the inner wall of the first housing on the side of the evaporator fan.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] The refrigerator is designed with a refrigerated compartment and an inflation system. It consists of a first compartment and a liftable second compartment. When the solenoid valve opens, argon gas from the storage tank is injected into the air bladder via pipeline. As the air bladder inflates, it pushes the second compartment upwards, increasing its volume. When the solenoid valve closes, the argon gas in the air bladder is recompressed into the storage tank via pipeline and a second compressor, causing the second compartment to descend. This design allows for easy adjustment of the refrigerator's refrigeration capacity by adjusting the height of the second compartment, making it suitable for refrigerating items of different sizes. The refrigerator also offers advantages such as convenient transportation and storage. Attached Figure Description

[0021] Figure 1 This is one of the overall structural schematic diagrams of the present invention;

[0022] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0023] Figure 3 This is an exploded structural diagram of the refrigerator box in this invention;

[0024] Figure 4 This is a cross-sectional view of the overall structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the first guide block in this invention;

[0026] Figure 6 This is a schematic diagram of the airbag structure in this invention.

[0027] In the picture:

[0028] 1. Refrigerated container; 10. First cabinet body; 101. First guide groove; 102. Clamping groove; 103. Casters; 11. First cabinet door; 111. Second guide groove; 112. Slot; 12. Magnetic block; 13. Second cabinet body; 131. First guide block; 132. Foam layer; 14. Second cabinet door; 141. Second guide block; 15. Inspection door; 151. Controller; 16. Temperature sensor;

[0029] 2. Refrigeration system; 20. First compressor; 21. Condenser; 22. Evaporator; 23. Evaporator fan;

[0030] 3. Inflation system; 30. Air tank; 31. Second compressor; 32. Solenoid valve; 33. Airbag; 331. First airbag body; 332. Second airbag body; 333. Connector; 334. Sealing gasket. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] This embodiment provides a technical solution:

[0033] Please see Figures 1-6 A variable-volume refrigerator includes a refrigerator 1, a refrigeration system 2, and an inflation system 3. The refrigerator 1 includes a first box body 10 with an open top, an electrical cavity at the bottom of the first box body 10, and a clamping groove 102 at the top of the first box body 10. A first cabinet door 11 is hinged to the front of the first box body 10, and a slot 112 is provided on the top surface of the first cabinet door 11. A second box body 13 with an open bottom and capable of being raised and lowered is provided above the first box body 10. The second box body 13 is inserted into the clamping groove 102 and can be raised and lowered along the clamping groove 102. A second cabinet door 14 is hinged to the front of the second box body 13 and can be inserted into the slot 112 and can be raised and lowered along the slot 112. A refrigeration system 2 is used for refrigeration of the refrigerator 1 and is located in the electrical cavity. The refrigeration system 2 includes a first compressor 20 installed at the bottom of the electrical cavity. A condenser 21 is installed on one side of the first compressor 20. An evaporator 22 is installed on the inner wall of the first box body 10, and an evaporator fan 23 is installed on one side of the evaporator 22. The inflation system 3 includes a second compressor 31 installed at the bottom of the electrical cavity, and a gas storage tank 30 for storing argon gas is installed on one side of the second compressor 31; an airbag 33 for driving the second box 13 to rise and fall is provided between the first box 10 and the second box 13, and a circuit for argon gas to flow is formed between the second compressor 31, the gas storage tank 30 and the airbag 33 through multiple pipelines; the airbag 33 includes a first bladder 331 located in the inner cavity of the first box 10 and the second box 13, and the airbag 33 also includes a second bladder 332 located in the inner cavity of the first cabinet door 11 and the second cabinet door 14, and the first bladder 331 and the second bladder 332 are connected by a connector 333.

[0034] In this embodiment, casters 103 are installed at the four corners of the bottom of the first housing 10, and the casters 103 are fixedly connected to the first housing 10 by bolts. The casters 103 facilitate the movement of the device and improve the portability of the device.

[0035] In this embodiment, a detachable inspection door 15 is installed on the front side of the electrical cavity, and the inspection door 15 is fixedly connected to the first housing 10 by bolts. A controller 151 is fixedly connected to the outer wall of the inspection door 15 by bolts. The inspection door 15 facilitates the maintenance of the equipment in the electrical cavity, while the controller 151 is used to control the refrigeration system 2.

[0036] In this embodiment, a solenoid valve 32 for controlling the opening and closing of the pipeline is provided on the connecting pipeline between the gas storage tank 30 and the air bag 33. The solenoid valve 32 is provided to control the opening and closing of the connecting pipeline between the gas storage tank 30 and the air bag 33, so as to facilitate the control of argon gas entering the air bag 33.

[0037] In this embodiment, a sealing gasket 334 is adhered to one end face of the second bladder 332 near the second box 13. The sealing gasket 334 passes through the second cabinet door 14 and abuts against the front end face of the second box 13. The sealing gasket 334 can increase the sealing performance of the connection between the second cabinet door 14 and the second box 13.

[0038] In this embodiment, the outer walls of both sides of the first housing 10 are provided with first guide grooves 101, and the outer walls of both sides of the second housing 13 are provided with first guide blocks 131. The first guide blocks 131 are slidably connected to the first guide grooves 101. The arrangement of the first guide blocks 131 and the first guide grooves 101 plays a guiding role in the lifting and lowering movement of the second housing 13, ensuring the smoothness of the lifting and lowering of the second housing 13.

[0039] In this embodiment, the outer walls on both sides of the first cabinet door 11 are provided with second guide grooves 111, and the outer walls on both sides of the second cabinet door 14 are provided with second guide blocks 141, and the second guide blocks 141 are slidably connected to the second guide grooves 111. The arrangement of the second guide blocks 141 and the second guide grooves 111 plays a guiding role in the lifting and lowering movement of the second cabinet door 14, ensuring the smoothness of the lifting and lowering of the second cabinet door 14.

[0040] In this embodiment, a magnetic block 12 is embedded at one corner of the top of the second cabinet door 14, and the magnetic block 12 is magnetically connected to the second box 13. The magnetic block 12 is used to attract the second box 13 when the second cabinet door 14 is closed, so as to prevent the door from leaking cold when it is open.

[0041] In this embodiment, a temperature sensor 16 is installed on the inner wall of the first box 10 on one side of the evaporator fan 23. The temperature sensor 16 is set up to facilitate the detection of the temperature inside the first box 10 and to facilitate the control of the refrigeration temperature.

[0042] It is understood that in this embodiment, the first compressor 20, condenser 21 and evaporator 22 are all provided with connecting pipes, and the first compressor 20, condenser 21, evaporator 22 and evaporator fan 23 are all existing conventional technologies, and their refrigeration principles are well known to those skilled in the art, and will not be described in detail here.

[0043] It should be added that the cross-sectional shape of the first guide block 131 and the second guide block 141 in this embodiment is convex. This design not only facilitates the sliding of the first guide block 131 and the second guide block 141 along the first guide groove 101 and the second guide groove 111 respectively, but also prevents the first guide block 131 and the second guide block 141 from disengaging from the first guide groove 101 and the second guide groove 111, thus ensuring the stability of the second box 13 and the second cabinet door 14 when they are raised and lowered.

[0044] In addition, the bottom and top of the first box 10 in this embodiment are provided with foam layers 132. The foam layers 132 have good heat preservation effect. Using the foam layers 132 can ensure the heat preservation effect of the refrigerator box 1 and reduce the possibility of cold leakage.

[0045] When it is necessary to increase the refrigeration capacity, the user first turns on the power to the solenoid valve 32. The solenoid valve 32 starts to work. At this time, the argon gas in the gas tank 30 enters the air bag 33 through the pipeline. The air bag 33 inflates and pushes the second box 13 and the second cabinet door 14 upward. The first guide block 131 and the second guide block 141 slide along the first guide groove 101 and the second guide groove 111 respectively. The second box 13 and the second cabinet door 14 move upward synchronously. At this time, the volume between the first box 10 and the second box 13 increases. Finally, the user stops the operation of the solenoid valve 32.

[0046] When it is necessary to reduce the refrigeration volume, the user first turns on the power to the second compressor 31. The second compressor 31 starts to work, and the argon gas in the air bag 33 enters the second compressor 31 and is then returned to the air tank 30 through the pipeline. At this time, the air bag 33 gradually deflates, and under the action of gravity, the second box 13 moves downward. At this time, the volume between the first box 10 and the second box 13 is reduced. Finally, the user stops the operation of the second compressor 31.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A variable-volume refrigerator, comprising a refrigerator (1), a refrigeration system (2), and an inflation system (3), characterized in that: The refrigerator (1) includes a first box body (10) with an open top, an electrical cavity at the bottom of the first box body (10), a clamping groove (102) at the top of the first box body (10), a first cabinet door (11) hinged to the front of the first box body (10), and a slot (112) on the top surface of the first cabinet door (11); a second box body (13) with an open bottom and adjustable height is provided above the first box body (10), the second box body (13) is inserted into the clamping groove (102) and can be raised and lowered along the clamping groove (102), a second cabinet door (14) hinged to the front of the second box body (13), the second cabinet door (14) is inserted into the slot (112) and can be raised and lowered along the slot (112); The refrigeration system (2) is located inside the electrical cavity and is used to refrigerate the refrigerator (1); The inflation system (3) includes a second compressor (31) installed at the bottom of the electrical cavity, and a gas storage tank (30) for storing argon is installed on one side of the second compressor (31); an airbag (33) for driving the second box (13) to rise and fall is provided between the first box (10) and the second box (13), and a circuit for argon to flow is formed between the second compressor (31), the gas storage tank (30) and the airbag (33) through multiple pipelines; the airbag (33) includes a first bladder (331), which is located in the cavity enclosed by the first box (10) and the second box (13), and the airbag (33) also includes a second bladder (332) located in the cavity of the first cabinet door (11) and the second cabinet door (14), and the first bladder (331) and the second bladder (332) are connected by a connector (333); The first box (10) has a first guide groove (101) on both outer walls, and the second box (13) has a first guide block (131) installed on both outer walls, and the first guide block (131) is slidably connected to the first guide groove (101). The first cabinet door (11) has a second guide groove (111) on both outer walls, and the second cabinet door (14) has a second guide block (141) on both outer walls, and the second guide block (141) is slidably connected to the second guide groove (111).

2. A variable volume cold box according to claim 1, characterised in that: The refrigeration system (2) includes a first compressor (20) installed at the bottom of the electrical cavity, a condenser (21) installed on one side of the first compressor (20), an evaporator (22) installed on the inner wall of the first housing (10), and an evaporation fan (23) installed on one side of the evaporator (22).

3. The variable volume cold box of claim 1, wherein: The first box (10) is equipped with casters (103) at the four corners of its bottom, and the casters (103) are fixedly connected to the first box (10) by bolts.

4. The variable volume cold box of claim 1, wherein: A detachable inspection door (15) is installed on the front side of the electrical cavity, and the inspection door (15) is fixedly connected to the first housing (10) by bolts. A controller (151) is fixedly connected to the outer wall of the inspection door (15) by bolts.

5. The variable volume cold box of claim 1, wherein: The connecting pipeline between the gas storage tank (30) and the air bag (33) is equipped with a solenoid valve (32) for controlling the opening and closing of the pipeline.

6. The variable volume cold box of claim 1, wherein: A sealing gasket (334) is attached to one end face of the second bladder (332) near the second box (13). The sealing gasket (334) passes through the second cabinet door (14) and abuts against the front end face of the second box (13).

7. The variable volume cold box of claim 1, wherein: A magnetic block (12) is embedded at one corner of the top of the second cabinet door (14), and the magnetic block (12) is magnetically connected to the second box body (13).

8. The variable volume cold box of claim 1, wherein: A temperature sensor (16) is installed on the inner wall of the first housing (10) on the side of the evaporator fan (23).

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