Cold plate-based refrigeration container, and temperature control method and apparatus

Abstract

The present application relates to the technical field of temperature control, and discloses a cold plate-based refrigeration container, and a temperature control method and apparatus. The cold plate-based refrigeration container is divided into a first area and a second area by means of a container body partition plate; a cold storage plate is provided in the second area, and comprises a condensing agent; a first fan opening is formed on the container body partition plate, a second fan opening is formed on a first surface of the cold plate-based refrigeration container, the first surface is any plane within the first area other than the container body partition plate, and a first fan and a second fan are respectively arranged on the first fan opening and the second fan opening. During temperature control, the temperature of the second area is obtained by means of a temperature sensor arranged in the second area of the cold plate-based refrigeration container; if the temperature of the second area is higher than a temperature threshold, the first fan is turned on, and the second fan is turned off; and if the temperature of the second area is lower than or equal to the temperature threshold, the second fan is turned on, and the first fan is turned off, thereby changing the temperature within the refrigeration container in real time.

Description

A cold plate refrigeration box, temperature control method and device

[0001] Cross-references to related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 202410551105.X, filed on May 6, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of temperature control technology, and in particular to a cold plate refrigeration box, a temperature control method and device. Background Technology

[0004] A cold-plate refrigerated box is a device used for refrigeration and cold storage. It mainly consists of a cold plate (also known as a cold storage plate) section and a refrigerated box section. The cold plate section contains a large amount of refrigerant. Before actual loading, relevant technicians usually place the corresponding type and quantity of refrigerant in the cold plate section according to the type and storage type of the goods to be stored in the refrigerated box section (e.g., frozen, refrigerated, etc.). Through the cooling effect of the cold plate section and the insulation performance of the refrigerated box section, the temperature inside the box is maintained within a predetermined temperature range for a certain period of time.

[0005] In related technologies, the refrigeration temperature range of a cold plate refrigeration box is determined by the performance of the refrigerant inside the cold plate. Therefore, the internal temperature of a cold plate refrigeration box can only be changed by replacing the cold plate section containing different refrigerants.

[0006] However, the cold plate cannot be replaced during actual transportation, so the internal temperature of the refrigerated box cannot be changed, and real-time temperature control is not possible. Summary of the Invention

[0007] This application provides a cold plate refrigeration box, a temperature control method and device, which can change the internal temperature of the refrigeration box in real time.

[0008] The embodiments of this application disclose the following technical solutions:

[0009] In a first aspect, this application discloses a cold plate refrigeration box, wherein the cold plate refrigeration box is divided into a first area and a second area by a box body partition;

[0010] The second region contains a cold storage plate, and the cold storage plate contains a refrigerant;

[0011] The box partition is provided with a first fan vent, and the first surface of the cold plate refrigeration box is provided with a second fan vent. The first surface is any plane in the first region other than the box partition. The first fan vent and the second fan vent are respectively provided with a first fan and a second fan.

[0012] In some embodiments, the cabinet partition is connected to the inner wall of the cold plate refrigeration box by riveting.

[0013] In some embodiments, the cold storage plate is fixed to the housing partition by an aluminum alloy bracket.

[0014] In some embodiments, a second fan vent is provided at the top of the first area of ​​the cold plate refrigeration box.

[0015] In some embodiments, temperature sensors are respectively provided in the first region and the second region.

[0016] Secondly, this application discloses a temperature control method applied to a cold plate refrigeration refrigerator according to the first aspect, the method comprising:

[0017] The temperature of the first zone is obtained by a temperature sensor installed in the first zone of the cold plate refrigeration box;

[0018] If the temperature in the first area is higher than the temperature threshold, then the first fan is turned on and the second fan is turned off.

[0019] If the temperature in the first area is lower than or equal to the temperature threshold, then the second fan is turned on and the first fan is turned off.

[0020] In some embodiments, the step of turning on the first fan if the temperature of the first region is higher than a temperature threshold includes:

[0021] If the temperature of the first region is higher than the temperature threshold, and the difference between the temperature of the first region and the temperature threshold is higher than the first difference threshold, then the first fan is turned on at the first speed.

[0022] If the temperature of the first region is higher than the temperature threshold, and the difference between the temperature of the first region and the temperature threshold is lower than or equal to the first difference threshold, then the first fan is turned on at the second speed, where the first speed is greater than the second speed.

[0023] In some embodiments, the step of turning on the second fan if the temperature of the first region is lower than or equal to a temperature threshold includes:

[0024] If the temperature of the first region is lower than or equal to the temperature threshold, and the difference between the temperature threshold and the temperature of the first region is higher than the second difference threshold, then the second fan is turned on at the third speed.

[0025] If the temperature of the first region is lower than or equal to a temperature threshold, and the difference between the temperature of the first region and the temperature threshold is lower than or equal to a second difference threshold, then the second fan is turned on at a fourth speed, wherein the third speed is greater than the fourth speed.

[0026] In some embodiments, obtaining the temperature of the first region via a temperature sensor disposed in the first region of the cold plate refrigeration box includes:

[0027] Multiple temperature values ​​are obtained by using multiple temperature sensors installed in the first area of ​​the cold plate refrigeration box;

[0028] The average of the multiple temperature values ​​is taken as the temperature of the first region.

[0029] Thirdly, this application discloses a temperature control device applied to a cold plate refrigeration box of the first aspect, the device comprising: a temperature acquisition module, a first control module and a second control module;

[0030] The temperature acquisition module is used to acquire the temperature of the first area through a temperature sensor installed in the first area of ​​the cold plate refrigeration box;

[0031] The first control module is configured to turn on the first fan and turn off the second fan if the temperature in the first area is higher than a temperature threshold.

[0032] The second control module is used to turn on the second fan and turn off the first fan if the temperature of the first area is lower than or equal to a temperature threshold.

[0033] In some embodiments, the first control module includes: a first control submodule and a second control submodule;

[0034] The first control submodule is configured to start the first fan at a first speed if the temperature of the first region is higher than a temperature threshold and the difference between the temperature of the first region and the temperature threshold is higher than a first difference threshold.

[0035] The second control submodule is configured to turn on the first fan at a second speed if the temperature of the first region is higher than a temperature threshold and the difference between the temperature of the first region and the temperature threshold is lower than or equal to a first difference threshold, wherein the first speed is greater than the second speed.

[0036] In some embodiments, the second control module includes: a third control submodule and a fourth control submodule;

[0037] The third control submodule is used to turn on the second fan at a third speed if the temperature of the first region is lower than or equal to a temperature threshold, and the difference between the temperature threshold and the temperature of the first region is higher than a second difference threshold.

[0038] The fourth control submodule is used to turn on the second fan at a fourth speed if the temperature of the first region is lower than or equal to a temperature threshold, and the difference between the temperature of the first region and the temperature threshold is lower than or equal to a second difference threshold, wherein the third speed is greater than the fourth speed.

[0039] In some embodiments, the temperature acquisition module specifically includes: a first acquisition submodule and a second acquisition submodule;

[0040] The first acquisition submodule is used to obtain multiple temperature values ​​through multiple temperature sensors set in the first area of ​​the cold plate refrigeration box;

[0041] The second acquisition submodule is used to take the average value of the multiple temperature values ​​as the temperature of the first region.

[0042] Compared with the prior art, this application has the following beneficial effects:

[0043] This application discloses a cold plate refrigeration refrigerator, a temperature control method, and an apparatus. The cold plate refrigeration refrigerator is divided into a first region and a second region by a partition. The second region includes a cold storage plate containing a refrigerant. A first fan vent is provided on the partition, and a second fan vent is provided on a first surface of the cold plate refrigeration refrigerator. The first surface is any plane in the first region other than the partition. A first fan and a second fan are respectively installed on the first and second fan vents. During temperature control, the temperature of the first region is obtained by a temperature sensor installed in the first region of the cold plate refrigeration refrigerator. If the temperature of the first region is higher than a temperature threshold, the first fan is turned on and the second fan is turned off. If the temperature of the first region is lower than or equal to the temperature threshold, the second fan is turned on and the first fan is turned off, thereby enabling real-time adjustment of the internal temperature of the refrigerator. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1A is a schematic diagram of an existing cold plate refrigeration refrigerator;

[0046] Figure 1B is a schematic diagram of a cold plate refrigeration refrigerator provided in an embodiment of this application;

[0047] Figure 2 is a schematic diagram of another cold plate refrigeration refrigerator provided in an embodiment of this application;

[0048] Figure 3 is a flowchart of a temperature control method provided in an embodiment of this application;

[0049] Figure 4 is a schematic diagram of a temperature control device provided in an embodiment of this application. Detailed Implementation

[0050] As mentioned earlier, before actual loading, technicians typically place the appropriate type and quantity of refrigerant in the cold-plate section based on the type and storage method (e.g., frozen, refrigerated) of goods to be stored in the refrigerated container. The cooling effect of the cold-plate section and the insulation performance of the refrigerated container ensure that the internal temperature is maintained within a predetermined range for a certain period. The refrigerant is a semi-transparent (or opaque), viscous, gel-like mixture composed of organic and / or inorganic compounds. It absorbs and stores a large amount of cold energy at low temperatures and releases a large amount of cold energy at higher temperatures, maintaining a low-temperature environment within itself and its surrounding small area for an extended period.

[0051] Referring to Figure 1A, this figure is a schematic diagram of an existing cold plate refrigeration refrigerator. The existing cold plate refrigeration refrigerator consists of a refrigerator body 1 and cold storage plates 2 fixed to the inner wall of the refrigerator. In related technologies, the refrigeration temperature range of the cold plate refrigeration refrigerator is determined by the performance of the refrigerant in the cold storage plates 2. Therefore, the internal temperature of the refrigerator can only be changed by replacing the cold plate sections containing different refrigerants.

[0052] However, the cold plate cannot be replaced during actual transportation, so the internal temperature of the refrigerated box cannot be changed, and real-time temperature control is not possible.

[0053] In view of this, this application provides a cold plate refrigeration refrigerator, a temperature control method, and an apparatus. The cold plate refrigeration refrigerator is divided into a first region and a second region by a partition in the box body. The second region includes a cold storage plate containing a refrigerant. A first fan vent is provided on the partition in the box body, and a second fan vent is provided on a first surface of the cold plate refrigeration refrigerator. The first surface is any plane in the first region other than the partition in the box body. A first fan and a second fan are respectively installed on the first fan vent and the second fan vent. When performing temperature control, the temperature of the first region is obtained by a temperature sensor installed in the first region of the cold plate refrigeration refrigerator. If the temperature of the first region is higher than a temperature threshold, the first fan is turned on and the second fan is turned off. If the temperature of the first region is lower than or equal to the temperature threshold, the second fan is turned on and the first fan is turned off, thereby enabling real-time adjustment of the internal temperature of the refrigerator.

[0054] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0055] Referring to Figure 1B, this figure is a schematic diagram of a cold plate refrigeration refrigerator provided in an embodiment of this application. The cold plate refrigeration refrigerator includes a second fan 1, a cold storage plate 2 (i.e., a second region), a cabinet partition 3, a first fan 4, and a refrigerator 5 (i.e., a first region). The cold plate refrigeration refrigerator is divided into a first region and a second region by the cabinet partition. In some embodiments, the cabinet partition is riveted to the inner wall of the cold plate refrigeration refrigerator.

[0056] In the first region, a first fan vent is provided on the partition of the cold plate refrigeration box, and a second fan vent is provided on the first surface of the cold plate refrigeration box. The first surface refers to any plane in the first region other than the partition, such as the top of the first region. A first fan 4 and a second fan 1 are respectively provided on the first and second fan vents.

[0057] In the second region, the cold plate refrigeration box includes a cold storage plate 2 containing a refrigerant. In some embodiments, the cold storage plate 2 is fixed to the box partition by an aluminum alloy bracket.

[0058] Referring to Figure 2, this figure is a schematic diagram of another cold plate refrigeration refrigerator provided in an embodiment of this application. In some embodiments, a first temperature sensor may be provided outside the cold plate refrigeration refrigerator, a second temperature sensor may be provided in a first area of ​​the cold plate refrigeration refrigerator, and a third temperature sensor may be provided in a second area.

[0059] Before transporting the cold plate refrigeration box, the cold storage plate can be charged with cold energy based on the temperature indicated by the third temperature sensor in the second zone until it reaches the corresponding target temperature. Charging the cold storage plate refers to the process where the cold storage plate relies on an external cold source to condense the refrigerant inside the plate through the evaporator coils, storing cold energy. During the charging process, the first fan 4 needs to be continuously turned on while the second fan 1 is turned off. Once the third temperature sensor in the second zone indicates that the corresponding target temperature has been reached, both the first fan 4 and the second fan 1 can be turned off.

[0060] During the transportation of cold-plate refrigerated boxes, the cold storage plates need to release heat from the refrigerated box (i.e., the first zone). Cold storage plate release refers to the process by which the refrigerant inside the cold storage plate absorbs heat from the external environment and the refrigerated goods, gradually melting and releasing cold energy. During this release process, the temperature of the first zone, as indicated by the second temperature sensor installed in the first zone, must remain within the corresponding target temperature range to ensure the refrigeration effect of the cold-plate refrigerated box on the goods inside.

[0061] Referring to Figure 3, this figure is a flowchart of a temperature control method provided in an embodiment of this application. This temperature control method is applied to the aforementioned cold plate refrigeration refrigerator. The method includes:

[0062] S301: Obtain the temperature of the first zone using a temperature sensor installed in the refrigerator.

[0063] Understandably, if multiple temperature sensors are installed in the first zone of a cold plate refrigeration box, the following steps can be performed: First, acquire multiple temperature values ​​indicated by the multiple temperature sensors in the first zone; second, average the multiple temperature values ​​to obtain the temperature of the first zone. This avoids the problem of inaccurate temperature control caused by uneven heating and cooling in the cold plate refrigeration box, and improves the accuracy of the acquired temperature.

[0064] S302: Determine whether the temperature of the first region is higher than the temperature threshold. If yes, proceed to S303; otherwise, proceed to S304.

[0065] This temperature threshold is a value pre-set by relevant technicians based on the type, quantity, and storage type (e.g., frozen, refrigerated) of the goods inside the box. For example, if the box contains fresh food that needs to be frozen, the temperature threshold needs to be set to a relatively low value, such as around -10 degrees Celsius. If the box contains flowers that need to be refrigerated, the temperature threshold needs to be set to a relatively high value, such as around 10 degrees Celsius. It should be noted that this application does not limit the specific temperature threshold.

[0066] S303: Turn on the first fan and turn off the second fan.

[0067] If the temperature in the first zone is higher than the temperature threshold, the first fan can be turned on and the second fan can be turned off, so that the cold storage plate releases cold air into the refrigerated box to cool down the goods in the refrigerated box.

[0068] In some embodiments, the rotational speed of the first fan may be related to the temperature of a first region. If the temperature of the first region is higher than a temperature threshold, and the difference between the temperature of the first region and the temperature threshold is higher than a first difference threshold, then the first fan is turned on at a first rotational speed. If the temperature of the first region is higher than the temperature threshold, and the difference between the temperature of the first region and the temperature threshold is lower than or equal to the first difference threshold, then the first fan is turned on at a second rotational speed, where the first rotational speed is greater than the second rotational speed.

[0069] For example, if the container contains fresh food that needs to be frozen, and the temperature of the first zone is 10 degrees Celsius, the temperature threshold is -10 degrees Celsius, and the first difference threshold is 5 degrees Celsius, then the temperature of the first zone is higher than the temperature threshold, and the difference between the temperature of the first zone and the temperature threshold is higher than the first difference threshold. Therefore, the first fan needs to be turned on at a higher first speed to accelerate the release of cold air from the cold storage plate into the refrigerator.

[0070] S304: Turn off the first fan and turn on the second fan.

[0071] If the temperature in the first zone is lower than or equal to the temperature threshold, the second fan can be turned on and the first fan can be turned off, so that the refrigerator 12 releases cold air to the outside to raise the temperature.

[0072] In some embodiments, the rotational speed of the second fan may be related to the temperature of the first region. If the temperature of the first region is lower than or equal to a temperature threshold, and the difference between the temperature threshold and the temperature of the first region is higher than a second difference threshold, the second fan is turned on at a third rotational speed. If the temperature of the first region is lower than or equal to the temperature threshold, and the difference between the temperature of the first region and the temperature threshold is lower than or equal to the second difference threshold, the second fan is turned on at a fourth rotational speed, where the third rotational speed is greater than the fourth rotational speed.

[0073] It is understood that in the temperature control method disclosed in the embodiments of this application, when the cold plate refrigeration box is transported to the destination and the goods inside the box are replaced, it is not necessary to replace the refrigeration box, but only to charge the cold plate with cold.

[0074] In summary, this application discloses a temperature control method. If the obtained temperature of the first area is higher than the temperature threshold, the first fan is turned on and the second fan is turned off; if the temperature of the first area is lower than or equal to the temperature threshold, the second fan is turned on and the first fan is turned off. Thus, while retaining the passive transportation of the cold plate refrigeration box, the function of real-time temperature control inside the refrigeration box is added, and the temperature can be controlled in real time according to the temperature of the first area.

[0075] Referring to Figure 4, this figure is a schematic diagram of a temperature control device provided in an embodiment of this application. The temperature control device 400 is applied to the aforementioned cold plate refrigeration refrigerator. The temperature control device 400 includes: a temperature acquisition module 401, a first control module 402, and a second control module 403;

[0076] In some embodiments, the temperature acquisition module 401 is used to acquire the temperature of the first region through a temperature sensor disposed in the first region of the cold plate refrigeration box;

[0077] The first control module 402 is used to turn on the first fan and turn off the second fan if the temperature of the first area is higher than the temperature threshold.

[0078] The second control module 403 is used to turn on the second fan and turn off the first fan if the temperature of the first area is lower than or equal to the temperature threshold.

[0079] In some embodiments, the first control module 402 includes: a first control submodule and a second control submodule;

[0080] The first control submodule is used to start the first fan at a first speed if the temperature of the first region is higher than the temperature threshold and the difference between the temperature of the first region and the temperature threshold is higher than the first difference threshold.

[0081] The second control submodule is used to turn on the first fan at a second speed if the temperature of the first region is higher than the temperature threshold and the difference between the temperature of the first region and the temperature threshold is lower than or equal to the first difference threshold. The first speed is greater than the second speed.

[0082] In some embodiments, the second control module 403 includes: a third control submodule and a fourth control submodule;

[0083] The third control submodule is used to start the second fan at a third speed if the temperature of the first region is lower than or equal to the temperature threshold and the difference between the temperature threshold and the temperature of the first region is higher than the second difference threshold.

[0084] The fourth control submodule is used to start the second fan at a fourth speed if the temperature of the first region is lower than or equal to the temperature threshold, and the difference between the temperature of the first region and the temperature threshold is lower than or equal to the second difference threshold, and the third speed is greater than the fourth speed.

[0085] In some embodiments, the temperature acquisition module includes: a first acquisition submodule and a second acquisition submodule;

[0086] The first acquisition submodule is used to obtain multiple temperature values ​​through multiple temperature sensors installed in the cold plate refrigeration box;

[0087] The second acquisition submodule is used to take the average value of the multiple temperature values ​​as the temperature of the first region.

[0088] In summary, this application discloses a temperature control device. If the temperature of the first area is higher than the temperature threshold, the first fan is turned on and the second fan is turned off. If the temperature of the first area is lower than or equal to the temperature threshold, the second fan is turned on and the first fan is turned off. Thus, while retaining the passive transportation of the cold plate refrigeration box, the function of real-time temperature control inside the refrigeration box is added, and the temperature can be controlled in real time according to the temperature of the first area.

[0089] The modules described in the embodiments of this disclosure can be implemented in software or hardware. The names of the modules are not necessarily limiting in certain circumstances; for example, a first building module can also be described as a "module for building a pre-trained dataset". The functions described above can be performed at least in part by one or more hardware logic components. For example, exemplary types of hardware logic components that can be used, without limitation, include: Field-Programmable Gate Arrays (FPGAs), Application-Specific Integrated Circuits (ASICs), Application Standard Products (ASSPs), System-on-Chip (SoCs), Complex Programmable Logic Devices (CPLDs), etc.

[0090] In the embodiments of this application, the terms "first" and "second" (if they exist) are used only as name identifiers and do not represent the order of first and second.

[0091] As can be seen from the above description of the embodiments, those skilled in the art can clearly understand that all or part of the steps in the methods of the above embodiments can be implemented by means of software plus a general-purpose hardware platform. Based on this understanding, the technical solution of this application can be embodied in the form of a software product. This computer software product can be stored in a storage medium, such as a read-only memory (ROM) / RAM, magnetic disk, optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, a server, or a network communication device such as a router) to execute the methods described in various embodiments or some parts of the embodiments of this application.

[0092] It should be noted that the various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, for the device and system embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiments. The device and system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components indicated as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of the solution in this embodiment according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0093] The above description is merely one specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A cold plate refrigeration box, wherein the cold plate refrigeration box is divided into a first area and a second area by a box body partition; The second region contains a cold storage plate, and the cold storage plate contains a refrigerant; The box partition is provided with a first fan vent, and the first surface of the cold plate refrigeration box is provided with a second fan vent. The first surface is any plane in the first region other than the box partition. The first fan vent and the second fan vent are respectively provided with a first fan and a second fan.

2. The cold plate refrigeration refrigerator according to claim 1, wherein, The box partition is connected to the inner wall of the cold plate refrigeration box by rivets.

3. The cold plate refrigeration refrigerator according to claim 1, wherein, The cold storage plate is fixed to the partition of the box by an aluminum alloy bracket.

4. The cold plate refrigeration refrigerator according to claim 1, wherein, The top of the first area of ​​the cold plate refrigeration box is provided with a second fan vent.

5. The cold plate refrigeration refrigerator according to claim 1, wherein, Temperature sensors are respectively installed in the first region and the second region.

6. A temperature control method applied to a cold plate refrigeration refrigerator as described in any one of claims 1 to 5, the method comprising: The temperature of the first zone is obtained by a temperature sensor installed in the first zone of the cold plate refrigeration box; If the temperature in the first area is higher than the temperature threshold, then the first fan is turned on and the second fan is turned off. If the temperature in the first area is lower than or equal to the temperature threshold, then the second fan is turned on and the first fan is turned off.

7. The method according to claim 6, wherein if the temperature of the first region is higher than a temperature threshold, then activating the first fan includes: If the temperature of the first region is higher than the temperature threshold, and the difference between the temperature of the first region and the temperature threshold is higher than the first difference threshold, then the first fan is turned on at the first speed. If the temperature of the first region is higher than the temperature threshold, and the difference between the temperature of the first region and the temperature threshold is lower than or equal to the first difference threshold, then the first fan is turned on at the second speed, where the first speed is greater than the second speed.

8. The method according to claim 6, wherein turning on the second fan if the temperature of the first region is lower than or equal to a temperature threshold comprises: If the temperature of the first region is lower than or equal to the temperature threshold, and the difference between the temperature threshold and the temperature of the first region is higher than the second difference threshold, then the second fan is turned on at the third speed. If the temperature of the first region is lower than or equal to a temperature threshold, and the difference between the temperature of the first region and the temperature threshold is lower than or equal to a second difference threshold, then the second fan is turned on at a fourth speed, wherein the third speed is greater than the fourth speed.

9. The method according to claim 5, wherein obtaining the temperature of the first region through a temperature sensor disposed in the first region of the cold plate refrigeration box comprises: Multiple temperature values ​​are obtained by using multiple temperature sensors installed in the first area of ​​the cold plate refrigeration box; The average of the multiple temperature values ​​is taken as the temperature of the first region.

10. A temperature control device, applied to a cold plate refrigeration refrigerator as described in any one of claims 1 to 5, the device comprising: Temperature acquisition module, first control module, and second control module; The temperature acquisition module is used to acquire the temperature of the first area through a temperature sensor installed in the first area of ​​the cold plate refrigeration box; The first control module is configured to turn on the first fan and turn off the second fan if the temperature in the first area is higher than a temperature threshold. The second control module is used to turn on the second fan and turn off the first fan if the temperature of the first area is lower than or equal to a temperature threshold.

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