Refrigeration system and refrigeration equipment thereof

Abstract

This invention specifically relates to a refrigeration system and a refrigeration device having the same. The refrigeration system includes an evaporator, a liquid storage tank connected to and positioned above the evaporator, a heating device positioned below the evaporator, and a rotating assembly disposed adjacent to the side wall of the evaporator. The rotating assembly includes a fixing member spaced apart from the side wall of the evaporator, a blocking block rotatably connected to the fixing member, and a driving mechanism for rotating the blocking block. A defrosting channel connecting the liquid storage tank and the heating device is formed between the side wall of the evaporator and the fixing member. The blocking block is positioned between the liquid storage tank and the heating device and rotates to open or close the defrosting channel under the action of the driving mechanism. This invention solves the technical problem of incomplete defrosting at the liquid storage tank location by using a driving mechanism to rotate the blocking block to open or close the defrosting channel. It has the advantages of high defrosting efficiency, thorough defrosting, and reduced costs.

Description

Technical Field

[0001] This invention relates to the field of refrigeration technology, and in particular to refrigeration systems and refrigeration equipment having the same. Background Technology

[0002] Currently, most refrigeration systems defrost the evaporator by arranging electric heating wires at the bottom of the evaporator. During system operation, the close proximity of the liquid receiver and evaporator makes them prone to frost formation. Existing technology relies solely on the waste heat from the evaporator to defrost the liquid receiver, resulting in low efficiency and incomplete defrosting, thus affecting refrigeration efficiency. Therefore, it is necessary to research a refrigeration system and refrigeration equipment incorporating this system to address these problems. Summary of the Invention

[0003] The present invention aims to provide a refrigeration system with high defrosting efficiency, thorough defrosting, and reduced costs.

[0004] To achieve the above objectives, one embodiment of the present invention provides a refrigeration system, including an evaporator, a liquid storage tank connected to the evaporator and disposed above the evaporator, and a heating device disposed below the evaporator. The refrigeration system further includes a rotating assembly disposed adjacent to the side wall of the evaporator. The rotating assembly includes a fixing member spaced apart from the side wall of the evaporator, a blocking block rotatably connected to the fixing member, and a driving mechanism for driving the blocking block to rotate. A defrosting channel connecting the liquid storage tank and the heating device is formed between the side wall of the evaporator and the fixing member. The blocking block is disposed between the liquid storage tank and the heating device, and rotates to open or close the defrosting channel under the action of the driving mechanism.

[0005] As a further improvement of one embodiment of the present invention, the driving mechanism includes a driving cylinder and a piston rod that can move up and down. The rotating assembly further includes a support connector that connects the piston rod and the blocking block, and the support connector drives the blocking block to rotate relative to the fixed member.

[0006] As a further improvement of one embodiment of the present invention, the driving cylinder includes a cylinder body with a top-opening inner cavity and a cylinder head movably disposed within the inner cavity, wherein the cylinder head moves up and down along the inner wall of the inner cavity, and the piston rod is connected to the middle of the top of the cylinder head and extends upward out of the cylinder body.

[0007] As a further improvement of one embodiment of the present invention, the fixing member is connected to the top wall of the cylinder body, the fixing member includes a fixing member body arranged parallel and adjacent to the piston rod, one end of the blocking block is rotatably connected to the fixing member body through a rotating shaft, and the other end of the blocking block is connected to the support connector.

[0008] As a further improvement of one embodiment of the present invention, the piston rod is disposed on the side of the fixing body opposite to the defrosting channel.

[0009] As a further improvement of one embodiment of the present invention, the fixing body is arranged parallel to the side wall of the evaporator, wherein the shielding block is arranged close to the liquid storage bag, and the defrosting channel is closed when the shielding block is perpendicular to the fixing body, and the defrosting channel is opened when the angle between the shielding block and the fixing body is an acute angle.

[0010] As a further improvement of one embodiment of the present invention, the bottom of the fixing body is lower than the lowest point of the heating device.

[0011] As a further improvement of one embodiment of the present invention, the space between the inner cavity and the cylinder head is used to accommodate compressed gas, and at least one of the cylinder body and the cylinder head is made of a thermally conductive material.

[0012] As a further improvement of one embodiment of the present invention, the cylinder head and the piston rod are integrally formed.

[0013] Another technical solution adopted in this invention is:

[0014] A refrigeration device, comprising the refrigeration system as described above.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention drives the shielding block to rotate and open or close the defrosting channel through a driving mechanism. Thus, when defrosting is required, the heat from the heating device located below the evaporator flows along the defrosting channel to the liquid storage tank, thereby defrosting the liquid storage tank and solving the technical problem of incomplete defrosting at the liquid storage tank location. It has the advantages of high defrosting efficiency, thorough defrosting, and reduced costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structural composition of the refrigeration system of the present invention;

[0017] Figure 2 This is a schematic diagram of the state of the rotating component in the refrigeration system of the present invention when the shielding block closes the defrosting channel;

[0018] Figure 3 This is a schematic diagram of the state of the rotating component in the refrigeration system of the present invention when the shielding block opens the defrosting channel;

[0019] Figure 4 This is a schematic diagram of the structure of the rotating shaft region of the refrigeration system of the present invention.

[0020] In the diagram: 1. Evaporator; 2. Liquid storage tank; 3. Heating device; 4. Rotating assembly; 41. Fixing component; 411. Fixing component body; 42. Blocking block; 43. Support connecting component; 44. Rotating shaft; 5. Drive mechanism; 51. Drive cylinder; 511. Cylinder body; 512. Inner cavity; 513. Cylinder head; 52. Piston rod; 6. Defrosting channel. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0022] The terms "comprising" and "having," and any variations thereof, used in this invention are intended to cover non-exclusive inclusion. References to "embodiment" herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] A refrigeration device includes a refrigeration system. In this embodiment, the refrigeration system is configured for a freezer compartment. Of course, modifications can be made to the refrigeration system for other refrigeration compartments, which will not be detailed here.

[0024] Combination Figure 1 As shown, in this embodiment, the refrigeration system includes an evaporator 1, a liquid storage tank 2 connected to the evaporator 1 and disposed above the evaporator 1, and a heating device 3 disposed near the evaporator 1.

[0025] Preferably, the heating device 3 is positioned below the evaporator 1, allowing the heat from the heating device 3 to naturally flow upwards, thus maximizing the defrosting effect of the heating device 3. Preferably, the heating device 3 is a heating wire, which allows for the modification of the refrigeration equipment without altering the existing refrigeration system, offering advantages such as affordability and ease of implementation.

[0026] Combination Figure 2 and Figure 3 As shown, in this embodiment, the refrigeration system further includes a rotating assembly 4 disposed on the side wall adjacent to the evaporator 1. The rotating assembly 4 includes a fixing member 41 spaced apart from the side wall of the evaporator 1, a blocking block 42 rotatably connected to the fixing member 41, and a driving mechanism 5 for driving the blocking block 42 to rotate.

[0027] The drive mechanism 5 can be a mechanical drive mechanism, an electronic drive mechanism, a temperature-sensing drive mechanism, etc. The included angle between the blocking block 42 and the fixing member 41 changes as the blocking block 42 rotates.

[0028] In this design, a defrosting channel 6 is formed between the side wall of the evaporator 1 and the fixing member 41, connecting the liquid storage tank 2 and the heating device 3. The heat from the heating device 3 is transferred to the liquid storage tank 2 through the defrosting channel 6, thereby defrosting the liquid storage tank 2. A blocking block 42 is disposed between the liquid storage tank 2 and the heating device 3, and rotates to open or close the defrosting channel 6 under the action of the driving mechanism 5.

[0029] When the refrigeration system is in cooling mode, the shielding block 42 is perpendicular to the side wall of the evaporator 1, and the defrosting channel 6 is closed to prevent the cold air from flowing upwards and wasting cold air. When the refrigeration system is in defrosting mode, the shielding block 42 is approximately parallel to the side wall of the evaporator 1, and the defrosting channel 6 is open, allowing the heat from the heating device 3 to flow more quickly to the liquid receiver 2 and allowing the defrosting water in the liquid receiver 2 to drain smoothly. This solves the problem in the prior art where the PE fixing block causes incomplete defrosting of the liquid receiver 2 during defrosting, and also avoids the accumulation of ice on the PE fixing block. It has the advantages of high defrosting efficiency without affecting the refrigeration efficiency.

[0030] Preferably, the drive mechanism 5 includes a drive cylinder 51 and a piston rod 52 that can move up and down. The drive cylinder 51 drives the piston rod 52 to move up and down. The rotating assembly 4 also includes a support connector 43 that connects the piston rod 52 and the blocking block 42. Specifically, one end of the support connector 43 is connected to the piston rod 52, and the other end of the support connector 43 is connected to the blocking block 42. As the piston rod 52 moves up and down, the support connector 43 drives the blocking block 42 to rotate relative to the fixed member 41.

[0031] Furthermore, the drive cylinder 51 includes a cylinder body 511 with a top-opening inner cavity 512 and a cylinder head 513 movably disposed within the inner cavity 512. The cylinder head 513 moves up and down along the inner wall of the inner cavity 512, and the piston rod 52 is connected to the middle of the top of the cylinder head 513 and extends upward beyond the cylinder body 511. Preferably, the cylinder head 513 and the piston rod 52 are integrally formed, which has the advantages of easy processing and reduced cost.

[0032] Furthermore, the space between the inner cavity 512 and the cylinder head 513 is used to accommodate compressed gas. At least one of the cylinder body 511 and the cylinder head 513 is made of a thermally conductive material. Preferably, both the cylinder body 511 and the cylinder head 513 are made of thermally conductive materials. Common thermally conductive materials include copper and silver. Through the thermal conductivity properties of the thermally conductive material, based on the principle of thermal expansion and contraction, the gas inside the cylinder body 511 is affected by the temperature change outside the cylinder body 511, thereby driving the cylinder head 513 to move, which in turn drives the piston rod 52 to move, so that the blocking block 42 rotates relative to the fixed member 41.

[0033] When the refrigeration system is in cooling mode, the gas inside cylinder 511 contracts due to cold, causing piston rod 52 to move downwards and defrosting channel 6 to close. When the refrigeration system is in defrosting mode, and heating device 3 is working, the gas inside cylinder 511 expands due to heat, pushing piston rod 52 upwards and opening defrosting channel 6. By using the thermal expansion and contraction of the gas to control the up-and-down movement of piston rod 52, the cost of the refrigeration equipment control system can be reduced, and it has the advantages of simple movement and reduced cost.

[0034] Combination Figure 4 As shown, the fixing member 41 is connected to the top wall of the cylinder 511. The fixing member 41 includes a fixing member body 411 arranged parallel to and adjacent to the piston rod 52. A defrosting channel 6 is formed between the fixing member body 411 and the side wall of the evaporator 1. A blocking block 42 is disposed in the defrosting channel 6 and is used to open or close the defrosting channel 6. One end of the blocking block 42 is rotatably connected to the fixing member body 411 via a rotating shaft 44, and the other end of the blocking block 42 is connected to the support connector 43.

[0035] Preferably, the piston rod 52 is disposed on the side of the fixing body 411 opposite to the defrosting channel 6, that is, the blocking block 42 and the piston rod 52 are respectively disposed on opposite sides of the fixing body 411. This maximizes the cross-section of the defrosting channel 6 and improves the defrosting efficiency of the heating device 3.

[0036] Preferably, the fixing body 411 is arranged parallel to the side wall of the evaporator 1, wherein the shielding block 42 is arranged close to the liquid storage bag 2. When the shielding block 42 is perpendicular to the fixing body 411, the defrosting channel 6 is closed, and when the angle between the shielding block 42 and the fixing body 411 is an acute angle, the defrosting channel 6 is opened.

[0037] In order to maximize the heating effect of the heating device 3, the bottom of the fixing body 411 is lower than the lowest point of the heating device 3, so that the heat of the heating device 3 can flow upward along the defrosting channel 6 as much as possible.

[0038] The working principle of this invention is as follows: When the refrigeration system is in the refrigeration state, the gas inside the cylinder 511 contracts due to cold, and the piston rod 52 moves downward. The piston rod 52 drives the blocking block 42 to rotate through the support connector 43, thereby closing the defrosting channel 6. When the refrigeration system is in the defrosting state, the gas inside the cylinder 511 expands due to heat, pushing the piston rod 52 upward, opening the defrosting channel 6, allowing the heat from the defrosting heating wire to flow to the liquid storage tank 2, thereby defrosting the liquid storage tank 2.

[0039] Compared to existing technologies, this invention uses a driving mechanism 5 to rotate the shielding block 42 to open or close the defrosting channel 6. This allows heat from the heating device 3 located below the evaporator 1 to flow along the defrosting channel 6 to the liquid storage tank 2 when defrosting is needed, thus defrosting the liquid storage tank 2 and solving the technical problem of incomplete defrosting at the liquid storage tank 2. It has the advantages of high defrosting efficiency, thorough defrosting, and reduced costs.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A refrigeration system, comprising an evaporator, a liquid storage tank connected to the evaporator and disposed above the evaporator, and a heating device disposed below the evaporator, characterized in that, The refrigeration system also includes: A rotating assembly is disposed adjacent to the side wall of the evaporator. The rotating assembly includes a fixing member spaced apart from the side wall of the evaporator, a blocking block rotatably connected to the fixing member, and a driving mechanism for driving the blocking block to rotate. The side wall of the evaporator and the fixing member form a defrosting channel connecting the liquid storage tank and the heating device. The shielding block is disposed between the liquid storage tank and the heating device, and rotates to open or close the defrosting channel under the action of the driving mechanism.

2. The refrigeration system according to claim 1, characterized in that: The driving mechanism includes a driving cylinder and a piston rod that can move up and down. The rotating assembly also includes a support connector that connects the piston rod and the blocking block. The support connector drives the blocking block to rotate relative to the fixed member.

3. The refrigeration system according to claim 2, characterized in that: The drive cylinder includes a cylinder body with a top-opening inner cavity and a cylinder head movably disposed within the inner cavity. The cylinder head moves up and down along the inner wall of the inner cavity, and the piston rod is connected to the middle of the top of the cylinder head and extends upward out of the cylinder body.

4. The refrigeration system according to claim 3, characterized in that: The fixing member is connected to the top wall of the cylinder body. The fixing member includes a fixing member body arranged parallel and adjacent to the piston rod. One end of the blocking block is rotatably connected to the fixing member body through a rotating shaft, and the other end of the blocking block is connected to the support connector.

5. The refrigeration system according to claim 4, characterized in that: The piston rod is located on the side of the fixing body opposite to the defrosting channel.

6. The refrigeration system according to claim 4, characterized in that: The fixing body is arranged parallel to the side wall of the evaporator. The shielding block is arranged close to the liquid storage bag. When the shielding block is perpendicular to the fixing body, the defrosting channel is closed. When the angle between the shielding block and the fixing body is an acute angle, the defrosting channel is open.

7. The refrigeration system according to claim 4, characterized in that: The bottom of the fixing body is lower than the lowest point of the heating device.

8. The refrigeration system according to claim 3, characterized in that: The space between the inner cavity and the cylinder head is used to accommodate compressed gas, and at least one of the cylinder body and the cylinder head is made of a thermally conductive material.

9. The refrigeration system according to claim 3, characterized in that: The cylinder head and the piston rod are integrally formed.

10. A refrigeration device, characterized in that: Includes the refrigeration system according to any one of claims 1-9.

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