Cold storage device, refrigeration air supply system and refrigerator

Abstract

This invention relates to the field of refrigeration equipment technology, and provides a cold storage device, including an insulation base that divides a closed space into two independent compartments; a refrigeration damper rotatably mounted on the insulation base; when the refrigeration damper is closed, it blocks airflow between the two independent compartments; when the refrigeration damper is open, the two independent compartments are connected; a cold storage chamber is mounted on the insulation base and located in one of the independent compartments, the cold storage chamber containing cold storage material or cold storage components; and a cold release channel connecting the cold storage chamber. Thus, this invention integrates the functions of insulation and cold storage; it can control the blocking or connection of the two independent spaces; and it can perform cold storage or cold release steps according to the on / off state of the two spaces. This invention also provides a refrigeration air supply system and a refrigerator, in which the insulation base separates the evaporator compartments, blocking heat exchange; in the shutdown and defrosting states, it reduces temperature fluctuations. Simultaneously, it maintains a constant temperature for the target cooling target.

Description

Technical Field

[0001] This invention belongs to the field of refrigeration equipment technology, and particularly relates to a cold storage device, a refrigeration air supply system, and a refrigerator. Background Technology

[0002] Cold storage devices, as key components for regulating storage compartment temperature or optimizing defrosting effects, are widely used in refrigeration equipment such as refrigerators. Examples include the solutions disclosed in Chinese patents CN115682528A, CN116558199A, and CN113983739A.

[0003] However, existing cold storage devices are either located in the refrigerator's storage compartment, occupying storage space, or located outside the evaporator compartment, occupying additional space. While existing technologies can stabilize the storage compartment temperature or reduce the frequency of evaporator defrosting, the entire evaporator compartment temperature rises and becomes filled with hot, humid gas when the evaporator stops working, especially during the defrosting phase, during which the cold storage device is ineffective. After restarting the refrigerator, the evaporator compartment temperature must first be lowered, reducing cooling efficiency.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the Invention

[0005] To address the aforementioned shortcomings, this invention primarily provides a cold storage device that solves the technical problem of optimizing overall system performance during shutdown or defrosting cycles by utilizing refrigeration components.

[0006] To address the above problems, the present invention provides a cold storage device, comprising:

[0007] Insulated seats can divide an enclosed space into two independent compartments;

[0008] The refrigeration damper is installed on the heat insulation base; when the refrigeration damper is closed, it blocks the airflow between two independent compartments; when the refrigeration damper is open, the two independent compartments are connected.

[0009] A cold storage chamber is set on a heat insulation base and located in one of the independent compartments. The cold storage chamber contains cold storage materials or cold storage components.

[0010] The cold channel component connects to the cold storage chamber.

[0011] According to the cold storage device of the present invention, a cold storage component is provided in the cold storage chamber; the cold storage component includes a cold storage plate.

[0012] According to the cold storage device of the present invention, the cold storage component has a plurality of cold storage plates arranged in a cold storage chamber, and a support member is provided between two adjacent cold storage plates.

[0013] According to the cold storage device of the present invention, the cold storage plate is provided with a cold release through hole; the interior of the cold storage plate has a hollow layer, and the hollow layer is filled with a cold storage agent; the cold storage agent is blue ice.

[0014] According to the cold storage device of the present invention, a cold storage damper is provided at the top of the cold storage chamber.

[0015] According to the cold storage device of the present invention, the heat insulation seat is box-shaped and has a box cavity; the box cavity is provided with an isolation plate to divide the box space into two chambers; the bottom of one chamber is provided with the refrigeration damper, and the other chamber is the cold storage chamber; there are two cold release channels, which are symmetrically arranged on both sides of the refrigeration damper.

[0016] A refrigeration air supply system includes an evaporator compartment, and the evaporator compartment is equipped with the aforementioned cold storage device; the heat insulation seat of the cold storage device divides the evaporator compartment into two independent first compartments and second compartments;

[0017] The first room is equipped with a cooling fan, and the second room is equipped with an evaporator; the first room is also equipped with a cooling air duct that connects to the cooling channel component of the cold storage device; a cooling fan is installed at the connection point between the cooling air duct and the cooling channel component.

[0018] One side of the evaporator compartment is provided with an air duct connecting plate; the air duct connecting plate is provided with a cooling air outlet connecting the first compartment and a cooling air return outlet connecting the second compartment; the air duct connecting plate is also provided with a cooling air outlet connecting to the cooling air supply duct.

[0019] According to the refrigeration air supply system of the present invention, the heat insulation seat is further provided with a cold air vent that connects to the cold storage chamber; the cold air vent of the cold storage device is connected to a cold air return pipe, and a cold air return door is provided at the port of the cold air return pipe.

[0020] According to the refrigeration air supply system of the present invention, the refrigeration fan is a centrifugal fan and is embedded in the air duct connecting plate; the air duct connecting plate is provided with a refrigeration air duct connecting the refrigeration fan and the refrigeration air outlet;

[0021] The cooling return air duct is located outside the evaporator compartment.

[0022] A refrigerator having a storage compartment and the aforementioned refrigeration air supply system.

[0023] In summary, this invention provides a cold storage device that integrates heat insulation and cold storage functions. It can control the blocking or connection of two independent spaces according to the usage scenario, and can perform cold storage or cold release steps based on the on / off state of the two spaces. This invention also provides a refrigeration air supply system that separates the evaporator compartments using an insulated base, blocking heat exchange during shutdown and defrosting, reducing temperature fluctuations, and improving defrosting efficiency. Simultaneously, the refrigeration device can supply cold externally, maintaining a constant temperature at the target cooling point. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the cold storage device of the present invention;

[0025] Figure 2 yes Figure 1 Schematic diagram of the structure in direction A;

[0026] Figure 3 yes Figure 2 Sectional view along line B;

[0027] Figure 4 This is a schematic diagram of the cold storage component of the present invention;

[0028] Figure 5 This is a schematic diagram of the refrigeration air supply system of the present invention;

[0029] Figure 6 yes Figure 5 Schematic diagram of the structure in the C-direction;

[0030] Figure 7 This is an exploded structural diagram of the refrigeration air supply system of the present invention;

[0031] Figure 8 This is a schematic diagram of the refrigerator's power-on state according to the present invention;

[0032] Figure 9 This is a schematic diagram of the refrigerator in the off state according to the present invention;

[0033] In the diagram: 1-Insulation base, 11-Refrigeration damper, 12-Cold storage damper, 121-Cover plate motor; 13-Cold storage component, 14-Cold storage plate, 141-Cold release through hole; 15-Support component, 16-Cold release channel component, 17-Cold release ventilation hole; 2-Air duct connecting plate component, 21-Refrigeration fan, 22-Cold release air supply duct, 23-Evaporator, 24-Cold release return air duct, 241-Cold release return air damper; 25-Refrigeration air outlet, 26-Cold release air outlet, 27-Refrigeration return air outlet, 28-Cold release fan; 100-Evaporator compartment, 200-Storage compartment. Detailed Implementation

[0034] See Figure 1 The present invention provides a cold storage device, including

[0035] The heat insulation seat 1 is made of heat insulation material, preferably a foam plastic molded heat insulation seat 1; it can divide a closed space into two independent compartments.

[0036] Combination Figure 2 The cooling damper 11 is installed on the heat insulation seat 1; the cooling damper 11 of the present invention can be opened and closed by rotation; when the cooling damper 11 is closed, it blocks the airflow between two independent compartments; when the cooling damper 11 is open, the two independent compartments are connected.

[0037] The refrigeration damper 11 of the present invention is driven by a motor to rotate. A space for accommodating the motor can be opened in the heat insulation seat 1. The motor is connected to the rotating shaft of the refrigeration damper 11.

[0038] The cooling damper 11 of the present invention can also be opened and closed in other ways, such as by pulling and closing.

[0039] A cold storage chamber is set on the heat insulation seat 1 and located in one of the independent compartments. The cold storage chamber contains cold storage material or cold storage component 13.

[0040] The cold storage material of the present invention is preferably a solid material with a large specific heat capacity, and its shape can be adaptively set to block, spherical, sheet or granular, etc.

[0041] See Figure 4 As one embodiment of the cold storage component 13, the cold storage component 13 includes a cold storage plate 14; the cold storage plate 14 is preferably made of a metal material with high thermal conductivity.

[0042] Even better, the interior of the cold storage plate 14 has a hollow layer, and the hollow layer is filled with a cold storage agent; preferably, the cold storage agent of the present invention is blue ice, which has a long service life and is pollution-free.

[0043] Furthermore, the cold storage plate 14 is provided with a cold discharge through hole 141 to increase the specific surface area and improve the efficiency of cold exchange.

[0044] The cold storage assembly 13 of the present invention has a plurality of cold storage plates 14 arranged in the cold storage chamber, which has a large cold storage capacity; a support member 15 is provided between two adjacent cold storage plates 14, so that each layer of cold storage plates 14 can easily exchange heat with the outside.

[0045] Even better, the open end of the cold storage chamber is provided with a cold storage damper 12; the cold storage damper 12 is connected to the cover plate motor 121, which drives it to open or close.

[0046] During cooling, the cold storage damper 12 opens to absorb cold energy from the outside.

[0047] When cooling, the cold storage damper 12 is closed to avoid wasting cold energy.

[0048] See Figure 3 The cold storage device of the present invention further includes a cold release channel component 16 that connects to the cold storage chamber; more preferably, the heat insulation seat 1 is also provided with a cold release ventilation hole 17 that connects to the cold storage chamber; during cold release, a passage is formed between the cold release channel component 16 and the cold release ventilation hole 17 to facilitate the effective release of cold energy.

[0049] As one embodiment of the cold storage device, the heat insulation seat 1 is box-shaped and has a box cavity; the box cavity is provided with an isolation plate to divide the box space into two chambers; the bottom of one chamber is provided with the cooling damper 11, and the other chamber is the cold storage chamber;

[0050] Even better, there are two cooling channel components 16, which are symmetrically arranged on both sides of the cooling damper 11.

[0051] The embodiment of this cold storage device makes full use of space, has a compact overall structure, and is easy to manufacture.

[0052] The cold storage device of the present invention integrates the functions of heat insulation and cold storage; it can control the blocking or connection of two independent spaces according to the usage scenario; and it can perform the steps of cold storage or cold release according to the on / off state of the two spaces.

[0053] See Figure 7 The present invention also provides a refrigeration air supply system, including an evaporator compartment 100, wherein the aforementioned cold storage device is disposed inside the evaporator compartment 100; the heat insulation seat 1 of the cold storage device divides the evaporator compartment 100 into two independent first compartments and second compartments;

[0054] The first room is equipped with a cooling fan 21, and the second room is equipped with an evaporator 23; the first room is also equipped with a cooling air duct 22 that connects to the cooling channel component 16 of the cold storage device.

[0055] Combination Figure 5 and Figure 6 The evaporator chamber 100 is provided with a wind passage connecting plate 2 on one side; the wind passage connecting plate 2 is provided with a cooling air outlet 25 connecting the first chamber and a cooling air return outlet 27 connecting the second chamber; the wind passage connecting plate 2 is also provided with a cooling air outlet 26 connecting the cooling air supply duct 22.

[0056] The cooling vent 17 of the cold storage device is connected to the cooling return air pipe 24, and the cooling return air pipe 24 is also provided with a cooling return air damper 241 at the port position; the cooling return air pipe 244 is turned on or off by opening and closing the cooling return air pipe 241.

[0057] See Figure 8During the refrigeration cycle, the refrigeration damper 11 is open, and the refrigeration fan 21 sends cold air out through the refrigeration outlet 25; the gas flows back to the second chamber from the refrigeration return air outlet 27, forming an airflow circulation for the refrigeration process. During the refrigeration cycle, the cold storage damper 12 is open, and the cold storage component 13 in the cold storage device exchanges heat with the gas in the first chamber, completing the cold storage step. This invention is applied in a freezing environment where the temperature can be as low as -20°C or lower; after the refrigeration fan 21 is started, it creates airflow in the first chamber. The cold storage component 13 in the cold storage chamber can achieve the effect of fully absorbing cold energy from the gas in the first chamber solely through heat transfer. Therefore, there is no need to open a cold storage airflow channel as in existing cold storage devices, simplifying the overall structure while ensuring the cold absorption effect.

[0058] During this refrigeration cycle, the cold air return damper 241 is closed to prevent high-temperature gas returning from the object being cooled from entering the cold storage device and causing a loss of cooling capacity.

[0059] See Figure 9 During the cooling cycle, the cooling return air damper 241 is opened, and the cold energy stored in the cold storage device is sent out through the cooling outlet 26 and flows back into the cold storage chamber through the cooling return air duct 24, completing the airflow circulation of the cooling process. During the cooling cycle, both the refrigeration damper 11 and the cold storage damper 12 are closed, and the entire evaporator chamber 100 does not participate in the cooling cycle, avoiding waste of cold energy and ensuring high utilization of the cold energy of the cold storage device.

[0060] After the refrigeration cycle is complete, the cooling cycle can supply cooling to maintain a constant temperature for the object being cooled. This reduces the operating time of the refrigeration cycle.

[0061] During defrosting of the evaporator 23, the cooling damper 11 is closed to prevent humid and hot air and heat from the second compartment from entering the first compartment and causing temperature fluctuations. At the same time, the heat insulation seat 1 separates the evaporator compartment 100, limiting the defrosting temperature rise range to the second compartment, resulting in faster temperature rise and improved defrosting efficiency.

[0062] During the defrosting process, the cooling cycle operates to deliver cooling to the target object.

[0063] Even better, a cooling fan 28 is provided at the connection position between the cooling air supply duct 22 and the cooling channel component 16; the cooling fan 28 is preferably a DC fan with low power consumption, and the cooling fan 21 can be kept off during the cooling cycle to reduce energy consumption.

[0064] To make the overall structure more compact and reduce the space occupied, as an embodiment of the refrigeration air supply system, the refrigeration fan 21 is a centrifugal fan and is embedded in the air duct connecting plate 2; the air duct connecting plate 2 is provided with a refrigeration air duct connecting the refrigeration fan 21 and the refrigeration air outlet 25.

[0065] Furthermore, the cooling return air duct 24 is located outside the evaporator chamber 100, reducing the space of the second chamber.

[0066] The refrigeration air supply system of the present invention separates the evaporator compartment 100 by a heat insulation seat 1, which blocks heat exchange during shutdown and defrosting, reduces temperature fluctuations, and improves defrosting efficiency. At the same time, the refrigeration unit can supply cold to the outside, maintaining a constant temperature for the target cooling target.

[0067] See Figure 8 The present invention also provides a refrigerator having a storage compartment 200 and the aforementioned refrigeration air supply system, wherein the air duct connecting plate 2 is disposed between the storage compartment 200 and the evaporator compartment 100;

[0068] Once the temperature inside the storage compartment 200 reaches the preset value, the refrigeration air supply system shuts down, and the cold storage device supplies cooling to the storage compartment 200 to maintain a constant temperature. At this time, the refrigerator's compressor and refrigeration fan 21 are both off, shortening the start-up time of the refrigeration cycle and reducing power consumption.

[0069] In summary, the present invention provides a cold storage device that integrates the functions of heat insulation and cold storage; it can control the blocking or connection of two independent spaces according to the usage scenario; and it can perform cold storage or cold release steps according to the on / off state of the two spaces.

[0070] This invention also provides a refrigeration air supply system that uses an insulated base to separate the evaporator compartments, blocking heat exchange during shutdown and defrosting, reducing temperature fluctuations, and improving defrosting efficiency. Simultaneously, the refrigeration unit can supply cold air externally, maintaining a constant target temperature. This invention also provides a refrigerator with a refrigeration air supply system.

[0071] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A refrigerated air supply system, characterized in that The evaporator chamber is internally provided with a cold storage device; The cold storage device comprises: A heat insulation seat, which can separate a closed space into two independent chambers; A refrigeration air door installed on the heat insulation seat; the refrigeration air door blocks the air flow communication between the two independent chambers when in the closed state; the two independent chambers are communicated when the refrigeration air door is opened; A cold storage cavity provided on the heat insulation seat and located in one of the independent chambers, and the cold storage cavity contains cold storage materials or a cold storage assembly; A cold release channel member communicating with the cold storage cavity; The top of the cold storage cavity is provided with a cold storage air door; the heat insulation seat is in the shape of a box body and has a box cavity; the box cavity is provided with a partition plate to separate the space of the box body into two chambers; the bottom of one of the chambers is provided with the refrigeration air door, and the other chamber is the cold storage cavity; the cold release channel member is two and symmetrically arranged on both sides of the refrigeration air door; The heat insulation seat of the cold storage device separates the evaporator chamber into two independent first and second chambers; The first chamber is provided with a refrigeration air fan, and the second chamber is provided with an evaporator; the first chamber is also provided with a cold release air supply duct connected with the cold release channel member; the connection position of the cold release air supply duct and the cold release channel member is provided with a cold release air fan; One side of the evaporator chamber is provided with an air path communication plate member; the air path communication plate member is provided with a refrigeration air outlet communicating with the first chamber and a refrigeration return air outlet communicating with the second chamber; the air path communication plate member is also provided with a cold release air outlet connected with the cold release air supply duct; The heat insulation seat is also provided with a cold release air vent hole communicating with the cold storage cavity; the cold release air vent hole of the cold storage device is connected with a cold release return air pipe, and the port position of the cold release return air pipe is also provided with a cold release return air door.

2. The chilled air supply system of claim 1, wherein The cold storage cavity is provided with a cold storage assembly; the cold storage assembly comprises a cold storage plate.

3. The chilled air supply system of claim 2, wherein, The cold storage assembly has a plurality of cold storage plates arranged in the cold storage cavity, and a support member is arranged between adjacent two cold storage plates.

4. The chilled air supply system of claim 2, wherein The cold storage plate is provided with a cold release through hole; the cold storage plate has a hollow layer inside, and the hollow layer is filled with a cold storage agent; the cold storage agent is blue ice.

5. The chilled air supply system of claim 1, wherein, The refrigeration air fan is a centrifugal fan and is inlaid on the air path communication plate member; the air path communication plate member is provided with a refrigeration air duct communicating with the refrigeration air fan and the refrigeration air outlet; The cold release return air pipe is located outside the evaporator chamber.

6. A refrigerator characterized by comprising: The refrigeration air supply system comprises a storage chamber and the cold storage assembly according to claim 5.

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