Heat dissipation control method and heat dissipation control system of CDU cabinet and storage medium
By regulating the working quantity and frequency of the CDU cabinet fan, and according to the noise control needs and heat dissipation needs, the problem that fans cannot intelligently regulate in the existing technology is solved, and the effect of taking into account both heat dissipation, noise reduction and energy saving is achieved.
Patent Information
- Application Number
- CN202411937447.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-04-11
AI Technical Summary
The fans in the existing CDU cabinet cannot be intelligently regulated, and cannot take into account both heat dissipation, noise reduction and energy saving.
By controlling the working quantity and frequency of the fan, intelligent regulation is achieved based on the noise control needs and heat dissipation needs of the CDU cabinet. The specific methods include: selecting an appropriate control method according to the accuracy range of noise control requirements, such as regulating the number of work in the first accuracy range, regulating the operating frequency in the second accuracy range, and comprehensively regulating the number of work and frequency in the third accuracy range.
It achieves energy saving effect on taking into account the needs of heat dissipation and noise reduction, and improves the overall efficiency of the CDU cabinet.
Smart Images
Figure CN119815780A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of heat dissipation technology, and in particular to a heat dissipation control method, a heat dissipation control system and a storage medium of a CDU cabinet. Background Art
[0002] The CDU cabinet (CDU, cooling distribution unit) is a device that uses liquid cooling technology to dissipate heat from servers and reduce server temperature. During the operation of the cabinet, a series of pipes and water pumps are used to circulate the cooling medium, and heat is exchanged with the server through heat exchange equipment. During this process, the CDU equipment is accompanied by heat. Therefore, fans are usually installed in the cabinet to dissipate heat.
[0003] In the process of implementing this application, the inventors found that there are at least the following problems in the prior art: The fans in existing CDU cabinets cannot be intelligently adjusted according to the actual heat dissipation and noise control requirements in the cabinets, and cannot take into account heat dissipation, noise reduction and energy saving. Summary of the invention
[0004] The present application proposes a control method, a heat dissipation control system and a storage medium for a cabinet heat dissipation system, aiming to solve the technical problems mentioned in the above background technology.
[0005] In a first aspect, an embodiment of the present application provides a heat dissipation control method for a CDU cabinet, wherein the CDU cabinet includes a cabinet body and N fans arranged in the cabinet body, where N≥2, and the cabinet body is provided with ventilation windows corresponding to the fans; The heat dissipation control method comprises the following steps: Obtaining noise control requirements of the CDU cabinet; When the noise control requirement of the CDU cabinet is within the first accuracy range, the heat dissipation requirement of the CDU cabinet is met by adjusting the working number of the fan; When the noise control requirement of the CDU cabinet is within the second accuracy range, the heat dissipation requirement of the CDU cabinet is met by adjusting the operating frequency of the fan; When the noise control requirement of the CDU cabinet is within the third accuracy range, the heat dissipation requirement of the CDU cabinet is met by adjusting the working number and working frequency of the fan; The control accuracy of the first accuracy range, the second accuracy range, and the third accuracy range increases sequentially.
[0006] In some embodiments, before satisfying the heat dissipation demand of the CDU cabinet by adjusting the working quantity of the fan, the control method further includes: obtaining a temperature T of a target area in the cabinet; The step of satisfying the heat dissipation requirement of the CDU cabinet by regulating the working number of the fan comprises: If T < T 0 , then the N fans mentioned above are not working; If T 0 ≤T<T 1 , then control N 1 The fan is working; If T 1 ≤T<T 2 , then control N 2 The fan is working; If T n-1 ≤T<T n , then control N n The fan is working; wherein, T 0 <T 1 <T 2 ≤T n-1 <T n , N 1 <N 2 <N n ≤N.
[0007] In some embodiments, before adjusting the working quantity of the fan to a preset quantity, it is necessary to determine whether the duration t of T in the corresponding temperature range satisfies t>t 1 If satisfied, the working quantity of the fan is adjusted to the preset quantity.
[0008] In some embodiments, when the noise control requirement of the CDU cabinet is within a first accuracy range, the fan operates at a maximum operating frequency after startup.
[0009] In some embodiments, before satisfying the heat dissipation demand of the CDU cabinet by adjusting the operating frequencies of all fans, the control method further includes: obtaining a temperature T of a target area in the cabinet; The step of satisfying the heat dissipation requirement of the CDU cabinet by regulating the operating frequency of the fan comprises: Obtaining the temperature T of the target area in the cabinet; If T<F 1 , then the N fans mentioned above are not working; If F 1 ≤T<F 2 , then control the fan to operate at a first frequency; If F 2 ≤T<F 3 , then control the fan to operate at a second frequency; If F n-1 ≤T<Fn , then the fan is controlled to operate at the nth frequency; wherein, F 0 <F 1 <F 2 ≤F n-1 <F n , the first frequency, the second frequency and the nth frequency increase sequentially.
[0010] In some embodiments, before adjusting the operating frequency of the fan to a preset frequency, it is necessary to determine whether the duration t of T in the corresponding temperature range satisfies t>t 2 If the conditions are met, the operating frequency of the fan is adjusted to the preset frequency.
[0011] In some embodiments, when the noise control requirement of the CDU cabinet is within a second accuracy range, all N fans are started.
[0012] In some embodiments, the step of satisfying the heat dissipation requirement of the CDU cabinet by regulating the working quantity and working frequency of the fan includes: Determine the value of the comprehensive control parameter according to the noise control requirements and heat dissipation requirements of the CDU cabinet; The working quantity and working frequency corresponding to the fan are determined according to the comprehensive control parameter value.
[0013] In a second aspect, an embodiment of the present application further proposes a heat dissipation control system, which is applied to a CDU cabinet, wherein the CDU cabinet includes a cabinet body and N fans arranged in the cabinet body, where N≥2, and the cabinet body is provided with ventilation windows corresponding to the fans, and the heat dissipation control system includes: An acquisition unit, used to acquire the noise control requirements and heat dissipation requirements of the CDU cabinet; A control unit is in communication with the acquisition unit and is used to adjust the number of working fans and / or the working frequency according to the control requirements and heat dissipation requirements of the CDU cabinet; wherein, When the noise control requirement of the CDU cabinet is within the first accuracy range, the control unit meets the heat dissipation requirement of the CDU cabinet by adjusting the working number of the fan; When the noise control requirement of the CDU cabinet is within the second accuracy range, the control unit meets the heat dissipation requirement of the CDU cabinet by adjusting the operating frequency of the fan; When the noise control requirement of the CDU cabinet is within a third accuracy range, the control unit meets the heat dissipation requirement of the CDU cabinet by adjusting the working number and working frequency of the fan; The control accuracy of the first accuracy range, the second accuracy range, and the third accuracy range increases sequentially.
[0014] In a third aspect, an embodiment of the present application further proposes a computer-readable storage medium, wherein the computer-readable storage medium includes instructions, and when the instructions are executed on a computer, the computer executes the method described in the first aspect.
[0015] Compared with the prior art, this technical solution has at least the following technical effects: In the technical solution of the present application, the regulation of the number of working fans has a great influence on the noise fluctuation of the CDU cabinet, but when the noise control demand of the CDU cabinet is within the first accuracy range, it means that the noise control accuracy requirement of the CDU cabinet is relatively low. In this case, the heat dissipation demand of the CDU cabinet can be quickly met by regulating the number of working fans; when the noise control demand of the CDU cabinet is within the second accuracy range, it means that the noise control accuracy requirement of the CDU cabinet is moderate. In this case, the heat dissipation demand of the CDU cabinet can be quickly met by regulating the operating frequency of the fans while taking into account the noise control accuracy requirement of the CDU cabinet; when the noise control demand of the CDU cabinet is within the third accuracy range, it means that the noise control accuracy requirement of the CDU cabinet is relatively high. In this case, by comprehensively regulating the number and frequency of working fans, effective energy saving can be achieved on the basis of meeting the noise reduction and heat dissipation requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.
[0017] Figure 1 This is a schematic diagram of the structure of a CDU cabinet in one embodiment of the present application; Figure 2 A schematic diagram of a flow chart of a heat dissipation control method of the present application in one embodiment; Figure 3 A partial flow chart of a heat dissipation control method of the present application in one embodiment; Figure 4 FIG. 1 is a partial flow chart of a heat dissipation control method of the present application in one embodiment.
[0018] Reference numerals: DETAILED DESCRIPTION
[0019] In order to better understand the technical solution of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0020] It should be clear that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0021] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.
[0022] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0023] In a CDU cabinet, the fan's operating noise is one of the main sources of the CDU cabinet's operating noise. The more fans work and the higher the operating frequency, the greater the noise they generate. In the prior art, the fans in the CDU cabinet cannot be intelligently regulated according to the actual heat dissipation requirements and noise control requirements in the cabinet, which is not conducive to achieving energy saving and noise reduction requirements at the same time.
[0024] In order to solve the above technical problems, the present application proposes a heat dissipation control method for a CDU cabinet.
[0025] In the embodiment of the present application, the CDU cabinet includes a cabinet body and N fans arranged in the cabinet body, where N≥2, and the cabinet body is provided with ventilation windows corresponding to the fans.
[0026] See also Figure 1 In some embodiments, the CDU cabinet 100 further includes a CDU unit, which is disposed in the cabinet 110 and serves as a main heat source for the CDU cabinet 100. There are multiple ventilation windows, including a first ventilation window 110a and a second ventilation window 110b, and the fan is disposed corresponding to the second ventilation window 110b.
[0027] In the above embodiment, the first ventilation window 110a is used for natural heat dissipation, and the second ventilation window 110b is used for forced heat dissipation. For example: when the heat generation of the CDU unit is low and the temperature inside the cabinet is low, N fans are all closed, the first ventilation window 110a is opened, and the second ventilation window 110b can be opened or closed. The air inside and outside the cabinet can meet the heat dissipation requirements of the CDU cabinet by natural convection heat exchange through the first ventilation window 110a; when the heat generation of the CDU unit is high and the temperature inside the cabinet is high, the air inside the cabinet can only meet the heat dissipation requirements of the CDU cabinet by natural convection heat exchange with the outside air through the first ventilation window 110a. At this time, the first ventilation window 110a and the second ventilation window 110b need to be opened together, and at least some fans are started. The started fans quickly blow out the hot air in the cabinet from the second ventilation window 110b, and quickly introduce the outside cold air from the first ventilation window 110a, thereby improving the heat dissipation efficiency of the CDU cabinet.
[0028] The heat dissipation control method of the present application not only takes into account the heat dissipation requirements of the CDU cabinet, but also takes into account the noise control requirements of the CDU cabinet. The heat dissipation control method of the present application is described below: See also Figure 2 In the embodiment of the present application, the heat dissipation control method includes the following steps: Obtain the noise control requirements of the CDU cabinet; When the noise control requirement of the CDU cabinet is within the first accuracy range, the cooling requirement of the CDU cabinet is met by adjusting the number of fans working; When the noise control requirement of the CDU cabinet is within the second accuracy range, the heat dissipation requirement of the CDU cabinet is met by adjusting the operating frequency of the fan; When the noise control requirement of the CDU cabinet is within the third accuracy range, the cooling requirement of the CDU cabinet is met by adjusting the number and frequency of fans. The accuracies of the first accuracy range, the second accuracy range, and the third accuracy range increase sequentially.
[0029] In an embodiment of the present application, when the noise control requirement of the CDU cabinet is within the first accuracy range, when the heat dissipation requirement of the CDU cabinet changes, the operating frequency of the fan remains unchanged, and only the working number of the fan needs to be adjusted, wherein the operating frequency of the newly started fan is consistent with the operating frequency of the previously started fan.
[0030] When the noise control requirement of the CDU cabinet is within the second accuracy range, when the heat dissipation requirement of the CDU cabinet changes, the working quantity of the fans remains unchanged, and only the working frequency of each fan needs to be adjusted, wherein the working frequency of each fan can be the same or different, and is adjusted specifically according to the heat dissipation requirement.
[0031] When the noise control requirement of the CDU cabinet is within the third accuracy range, when the heat dissipation requirement of the CDU cabinet changes, the working quantity and working frequency of the fans can be adjusted at the same time, or only the working quantity or working frequency of the fans can be adjusted. The specific adjustment method and adjustment range need to be adjusted according to the heat dissipation requirement of the CDU cabinet.
[0032] In the technical solution of the present application, the regulation of the number of working fans has a great influence on the noise fluctuation of the CDU cabinet, but when the noise control demand of the CDU cabinet is within the first accuracy range, it means that the noise control accuracy requirement of the CDU cabinet is relatively low. In this case, the heat dissipation demand of the CDU cabinet can be quickly met by regulating the number of working fans; when the noise control demand of the CDU cabinet is within the second accuracy range, it means that the noise control accuracy requirement of the CDU cabinet is moderate. In this case, the heat dissipation demand of the CDU cabinet can be quickly met by regulating the operating frequency of the fans while taking into account the noise control accuracy requirement of the CDU cabinet; when the noise control demand of the CDU cabinet is within the third accuracy range, it means that the noise control accuracy requirement of the CDU cabinet is relatively high. In this case, by comprehensively regulating the number and frequency of working fans, effective energy saving can be achieved on the basis of meeting the noise reduction and heat dissipation requirements.
[0033] In some embodiments, before satisfying the heat dissipation demand of the CDU cabinet by adjusting the working number of fans, and before satisfying the heat dissipation demand of the CDU cabinet by adjusting the working frequency of all fans, the control method further includes: obtaining the temperature T of the target area in the cabinet.
[0034] In the above embodiment, the temperature T of the target area in the cabinet actually reflects the heat dissipation requirement of the CDU cabinet.
[0035] In the above embodiment, the target area is generally an area whose temperature is close to the average temperature in the cabinet. In a specific embodiment, the target area is the middle of the cabinet. Of course, those skilled in the art can also use other areas that can reflect the heat dissipation requirements of the CDU cabinet as the target area, and the embodiment of the present application does not specifically limit this.
[0036] See also Figure 3 In some embodiments, the step of satisfying the heat dissipation demand of the CDU cabinet by adjusting the working number of the fans includes: If T < T 0 , then all N fans are not working; If T 0 ≤T<T 1 , then control N 1 Typhoon machine working; If T 1 ≤T<T 2 , then control N 2 Typhoon machine working; If T n-1 ≤T<T n , then control N n The typhoon machine is working; among them, T 0 <T 1 <T 2 ≤T n-1 <T n , N 1 <N 2 <N n ≤N.
[0037] In some embodiments, when the noise control requirement of the CDU cabinet is within the first accuracy range, the fan is started and runs at the maximum operating frequency, which is conducive to giving full play to the effectiveness of each fan and ensuring that the heat dissipation requirements of the CDU cabinet can be met.
[0038] Based on the above embodiments, in some embodiments, before adjusting the working number of the fan to the preset number, it is necessary to determine whether the duration t of T in the corresponding temperature range satisfies t>t 1 If the condition is satisfied, the number of fans is adjusted to the preset number. This ensures that the temperature T of the target area in the cabinet can more accurately reflect the heat dissipation demand of the CDU cabinet, and avoids frequent switching between different control modes in the heat dissipation control method.
[0039] Specifically, if T<T 0 , then further judge "T<T 0 "Whether the duration t of the 1 If the conditions are met, all fans will be turned off. If not, the number and frequency of fans will remain the same.
[0040] If T 0 ≤T<T 1 , then further judge that T is in T 0 ~T 1 Within the interval (excluding t 1 ) whether the duration t satisfies t>t 1 , if satisfied, then N 1 The fan is started. If the requirements are not met, the number and frequency of the fans will remain at the original state.
[0041] If T 1 ≤T<T 2 , then further judge that T is in T 1 ~T 2 Within the interval (excluding t 2 ) whether the duration t satisfies t>t 1 , if satisfied, then N2 The fan is started. If the requirements are not met, the number and frequency of the fans will remain at the original state.
[0042] If T n-1 ≤T<T n , then further judge that T is in T n-1 ~T n Within the range (excluding T n ) whether the duration t satisfies t>t 1 , if satisfied, then N n The fan is started. If the requirements are not met, the number and frequency of the fans will remain at the original state.
[0043] In the above embodiment, t 1 The value range of can be set according to the specific application scenario, and the present application embodiment does not limit this. In a specific implementation, t 1 ≥10s.
[0044] See also Figure 4 In some embodiments, the steps of satisfying the heat dissipation requirements of the CDU cabinet by adjusting the operating frequency of the fan include: Get the temperature T of the target area in the cabinet; If T<F 1 , then all N fans are not working; If F 1 ≤T<F 2 , then the fan is controlled to operate at the first frequency; If F 2 ≤T<F 3 , then the fan is controlled to operate at the second frequency; If F n-1 ≤T<F n , then the fan is controlled to operate at the nth frequency; where, F 0 <F 1 <F 2 ≤F n-1 <F n , the first frequency, the second frequency and the nth frequency increase sequentially.
[0045] In some embodiments, when the noise control requirement of the CDU cabinet is within the second accuracy range, all N fans are started, which is conducive to giving full play to the effectiveness of each fan and ensuring that the heat dissipation requirement of the CDU cabinet can be met.
[0046] In some embodiments, before adjusting the operating frequency of the fan to the preset frequency, it is necessary to determine whether the duration t of T in the corresponding temperature range satisfies t>t 2, if satisfied, the fan operating frequency is adjusted to the preset frequency. Similarly, this can ensure that the temperature T of the target area in the cabinet can more accurately reflect the heat dissipation requirements of the CDU cabinet, avoiding frequent switching between different control modes in the heat dissipation control method.
[0047] Specifically, if T<F 1 , then further judge "T<F 1 "Whether the duration t of the 2 If the conditions are met, all fans will be turned off. If not, the number and frequency of fans will remain the same.
[0048] If F 1 ≤T<F 2 , then further determine that T is in F 1 ~F 2 Within the range (excluding F 2 ) whether the duration t satisfies t>t 2 If it is satisfied, the fan is controlled to operate at the first frequency. If it is not satisfied, the working quantity and working frequency of the fan are maintained at the original state.
[0049] If F 2 ≤T<F 3 , then further determine that T is in F 2 ~F 3 Within the range (excluding F 3 ) whether the duration t satisfies t>t 2 If it is satisfied, the fan is controlled to operate at the second frequency. If it is not satisfied, the working quantity and working frequency of the fan are maintained at the original state.
[0050] If F n-1 ≤T<F n , then further determine that T is in F n-1 ~F n Within the range (excluding F n ) whether the duration t satisfies t>t 2 If it is satisfied, the fan is controlled to operate at the nth frequency. If it is not satisfied, the working quantity and working frequency of the fan are maintained at the original state.
[0051] In the above embodiment, t 2 The value range of can be set according to the specific application scenario, and the present application embodiment does not limit this. In a specific implementation, t 2 ≥10s.
[0052] In some embodiments, the steps of satisfying the heat dissipation requirements of the CDU cabinet by adjusting the number and frequency of fans include: Determine the value of the comprehensive control parameter based on the noise control and heat dissipation requirements of the CDU cabinet; The corresponding working quantity and working frequency of the fan are determined according to the comprehensive control parameter value.
[0053] Specifically, there are multiple combinations of the number and frequency of fans in the cabinet, and each combination corresponds to a comprehensive control parameter value. For example, if the total number of fans is 3 and each fan has three operating frequencies, then the number and frequency of fans in the cabinet have 3. 3+1=10 combinations, that is, each of the 10 combinations corresponds to a comprehensive control parameter value.
[0054] The present application also proposes a heat dissipation control system, which is applied to a CDU cabinet. The CDU cabinet includes a cabinet body and N fans arranged in the cabinet body, where N≥2. The cabinet body is provided with ventilation windows corresponding to the fans. The heat dissipation control system includes: An acquisition unit, used to acquire noise control requirements and heat dissipation requirements of a CDU cabinet; The control unit is in communication with the acquisition unit and is used to adjust the number and / or frequency of fans according to the control requirements and heat dissipation requirements of the CDU cabinet; wherein, When the noise control requirement of the CDU cabinet is within the first accuracy range, the control unit adjusts the number of working fans to meet the heat dissipation requirement of the CDU cabinet; When the noise control requirement of the CDU cabinet is within the second accuracy range, the control unit adjusts the operating frequency of the fan to meet the heat dissipation requirement of the CDU cabinet; When the noise control requirement of the CDU cabinet is within the third accuracy range, the control unit meets the heat dissipation requirement of the CDU cabinet by adjusting the working number and working frequency of the fans; The control accuracy of the first accuracy range, the second accuracy range, and the third accuracy range increases sequentially.
[0055] In some embodiments, the control system also includes: a central processing unit and a memory, the memory being a short-term storage memory or a persistent storage memory; the central processing unit is configured to communicate with the memory, and execute instruction operations in the memory on the control plane functional entity of the control system to execute the above-mentioned control method.
[0056] Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process of the control system described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.
[0057] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the control method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, read-only memory), random access memory (RAM, random access memory), disk or optical disk and other media that can store program codes.
[0058] Therefore, the present application also proposes a computer-readable storage medium, which includes instructions. When the instructions are executed on a computer, the computer executes the method in the above embodiments.
[0059] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A heat dissipation control method for a CDU cabinet, characterized in that: The CDU cabinet comprises a cabinet body and N fans arranged in the cabinet body, N≥2, and the cabinet body is provided with ventilation windows corresponding to the fans; The heat dissipation control method comprises the following steps: Obtaining noise control requirements of the CDU cabinet; When the noise control requirement of the CDU cabinet is within the first accuracy range, the heat dissipation requirement of the CDU cabinet is met by adjusting the working number of the fan; When the noise control requirement of the CDU cabinet is within the second accuracy range, the heat dissipation requirement of the CDU cabinet is met by adjusting the operating frequency of the fan; When the noise control requirement of the CDU cabinet is within the third accuracy range, the heat dissipation requirement of the CDU cabinet is met by adjusting the working number and working frequency of the fan; The control accuracy of the first accuracy range, the second accuracy range, and the third accuracy range increases sequentially.
2. The heat dissipation control method according to claim 1, characterized in that: Before satisfying the heat dissipation demand of the CDU cabinet by adjusting the working quantity of the fan, the control method further includes: acquiring a temperature T of a target area in the cabinet; The step of satisfying the heat dissipation requirement of the CDU cabinet by regulating the working number of the fan comprises: If T<T0, then the N fans mentioned above will not work; If T0≤T<T1, then control N1 fans to work; If T1≤T<T2, the N2 fans are controlled to work; If T n-1 ≤T<T n , then control N n The fan is working; wherein, T0<T1<T2≤T n-1 <T n ,N1<N2<N n ≤N。 3. The heat dissipation control method according to claim 2, characterized in that: Before adjusting the working quantity of the fan to a preset quantity, it is necessary to determine whether the duration t of T in the corresponding temperature range satisfies t>t1. If so, the working quantity of the fan is adjusted to the preset quantity.
4. The heat dissipation control method according to claim 2, characterized in that: When the noise control requirement of the CDU cabinet is within the first accuracy range, the fan runs at the maximum operating frequency after being started.
5. The heat dissipation control method according to claim 1, characterized in that: Before satisfying the heat dissipation demand of the CDU cabinet by regulating the operating frequencies of all fans, the control method further includes: acquiring a temperature T of a target area in the cabinet; The step of satisfying the heat dissipation requirement of the CDU cabinet by regulating the operating frequency of the fan comprises: Obtaining the temperature T of the target area in the cabinet; If T<F1, then the N fans mentioned above will not work; If F1≤T<F2, the fan is controlled to operate at the first frequency; If F2≤T<F3, the fan is controlled to operate at a second frequency; If F n-1 ≤T<F n , then the fan is controlled to operate at the nth frequency; wherein, F0<F1<F2≤F n-1 <F n , the first frequency, the second frequency and the nth frequency increase sequentially.
6. The heat dissipation control method according to claim 5, characterized in that: Before adjusting the operating frequency of the fan to the preset frequency, it is necessary to determine whether the duration t of T in the corresponding temperature range satisfies t>t2. If so, the operating frequency of the fan is adjusted to the preset frequency.
7. The heat dissipation control method according to claim 5, characterized in that: When the noise control requirement of the CDU cabinet is within the second accuracy range, all N fans are started.
8. The heat dissipation control method according to claim 1, characterized in that: The step of satisfying the heat dissipation requirement of the CDU cabinet by regulating the working quantity and working frequency of the fan comprises: Determine the value of the comprehensive control parameter according to the noise control requirements and heat dissipation requirements of the CDU cabinet; The working quantity and working frequency corresponding to the fan are determined according to the comprehensive control parameter value.
9. A heat dissipation control system, applied to a CDU cabinet, the CDU cabinet comprising a cabinet body and N fans arranged in the cabinet body, N≥2, the cabinet body is provided with ventilation windows corresponding to the fans, characterized in that: The heat dissipation control system comprises: An acquisition unit, used to acquire the noise control requirements and heat dissipation requirements of the CDU cabinet; A control unit is in communication with the acquisition unit and is used to adjust the number of working fans and / or the working frequency according to the control requirements and heat dissipation requirements of the CDU cabinet; wherein, When the noise control requirement of the CDU cabinet is within the first accuracy range, the control unit meets the heat dissipation requirement of the CDU cabinet by adjusting the working number of the fan; When the noise control requirement of the CDU cabinet is within the second accuracy range, the control unit meets the heat dissipation requirement of the CDU cabinet by adjusting the operating frequency of the fan; When the noise control requirement of the CDU cabinet is within a third accuracy range, the control unit meets the heat dissipation requirement of the CDU cabinet by adjusting the working number and working frequency of the fan; The control accuracy of the first accuracy range, the second accuracy range, and the third accuracy range increases sequentially.
10. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes instructions, and when the instructions are executed on a computer, the computer is caused to execute the method according to any one of claims 1 to 8.