WO2021223476A1

WO2021223476A1 - Machine room ventilation floor and control method therefor

Info

Publication number: WO2021223476A1
Application number: PCT/CN2021/075216
Authority: WO
Inventors: 杨公增; 李思宏
Original assignee: 青岛海尔空调电子有限公司; 海尔智家股份有限公司
Priority date: 2020-05-25
Filing date: 2021-02-04
Publication date: 2021-11-11
Also published as: CN111609543A

Abstract

The present invention relates to the field of machine room equipment, and particularly provides a machine room ventilation floor and a control method therefor, for solving the problem of uneven air supply in a machine room. The machine room ventilation floor comprises a plurality of ventilation sub-floors which are spliced, ventilation holes are formed in fixed plates of the ventilation sub-floors, moving baffles and the fixed plates are stacked up and down, and the moving baffles can slide with respect to the fixed plates so as to adjust the ventilation area of the ventilation holes. The control method comprises: obtaining the current ventilation quantity of ventilation sub-floors and the average ventilation quantity in the whole machine room, and determining whether the current ventilation quantity is greater than the average ventilation quantity or not and whether the difference reaches a preset threshold or not; and if yes, reducing the ventilation area of the ventilation holes, and dynamically adjusting the air supply quantity of the ventilation sub-floors in the machine room to ensure evenness of the air supply quantity in various areas in the machine room. Partial hot spots are avoided, and the reliability of server running is improved. An air conditioning unit runs under the appropriate rotating speed and air outlet static pressure, even cooling of a server can be guaranteed, and high-speed running of a unit fan can be avoided.

Description

Computer room ventilation floor and its control method

Technical field

The invention belongs to the technical field of machine room equipment, and specifically provides a machine room ventilation floor and a control method thereof.

Background technique

2019 is the first year of communication 5G. In our daily life, we are increasingly inseparable from information and data, and corresponding data processing rooms are also being built more and more. A large number of electronic components in the computer room generate heat, which requires professional computer room air-conditioning equipment to cool down. The current computer room usually adopts the form of under-floor air conditioner air supply to cool down, that is, the computer room air conditioner passes the cold air blown by the unit through the raised ventilating floor, using the space under the floor as an air duct, and then sending the cold air through the ventilation holes of the ventilating floor Enter the server cabinet to cool down the components in the cabinet. Normally, the room area of the computer room is relatively large. In the area close to the air conditioning unit, the static pressure of the air supply is large, and the floor ventilation is large. In the area far away from the air conditioner, the floor ventilation is small due to the loss of wind pressure. In some areas, the cabinet ventilation is small, and the electronic components cannot sufficiently dissipate heat, which causes local overheating in this area and affects the stable operation of the server.

In order to solve the above-mentioned problems of low ventilation and insufficient heat dissipation and local overheating of the cabinet server far away from the air conditioner, the speed of the air conditioner fan is usually increased, and the static pressure of the air conditioner in the computer room is increased to increase the ventilation of the remote server. The above-mentioned conventional method of increasing the speed of the air-conditioning fan in the computer room to increase the static pressure of the air outlet of the unit can initially improve the ventilation of the remote server and enhance the cooling effect; but this method does not solve the problem of uneven distribution of ventilation in the entire room. That is, after the static pressure of the air conditioner in the computer room is increased, the ventilation rate of the cabinet server close to the air conditioner becomes larger, resulting in excessive cooling in the area, resulting in waste, and uneven air distribution in the entire cabinet area. At the same time, the increase in fan speed will cause the air conditioner itself. Increased power consumption, shortened fan life and other adverse effects.

The Chinese invention patent with publication number CN108505720A discloses a large-ventilation machine room ventilated floor with built-in regulator. The ventilated floor of the machine room includes a floor frame and a grille panel arranged in the floor frame. The floor frame is provided with a ventilation volume regulator at the bottom of the grille panel, and the ventilation volume regulator includes a superimposed arrangement The fixed ventilating sheet and the movable air volume adjustment assembly are provided with a number of vent holes, the vent holes are evenly arranged in rows and rows, and the movable air volume adjustment assembly is provided with a number of blocks for closing the vent holes A wind strip, a ventilation area is formed between adjacent windshield strips, and the area of the ventilation area is equal to the area of the ventilation holes in the same row; a sliding plate is provided between the edge of the fixed ventilation sheet and the edge of the movable air volume adjustment assembly The length of the movable air volume adjustment component is less than the length of the fixed ventilating sheet, and the movable air volume adjustment component slides left and right along the edge of the fixed ventilating sheet through the sliding component, so that the windshield is sealed or opened The ventilation holes.

Although the above-mentioned reference documents provide a ventilated floor structure with adjustable air volume, it does not provide a method for dynamically controlling the floor ventilation volume of each sub-area. Therefore, this field still needs a new ventilated floor control method to solve the problem of how to dynamically control the floor ventilation of each area in the computer room.

Summary of the invention

In order to solve the above technical problems in the prior art, one aspect of the present invention provides a ventilated floor for a machine room.

The computer room ventilation floor provided by the present invention includes a plurality of sub-ventilated floors spliced with each other. The sub-ventilated floor includes a fixed plate and a movable baffle; the fixed plate is provided with ventilation holes, and the movable baffle and the fixed The board is superimposed on the top and bottom, and the movable baffle can slide relative to the fixed board to adjust the ventilation area of the ventilation hole; the ventilation floor of the computer room also includes a controller configured to obtain the said sub-current ventilation vent tiles in the average ventilation Q _i Q _j and the entire room, and determine whether the current is greater than the ventilation rate Q _i Q _j of the average ventilation rate and the difference reaches a preset threshold value K, if yes, Then, the movable baffle is controlled to slide relative to the fixed plate to reduce the ventilation area of the ventilation hole.

Preferably, the controller includes a main controller and a sub-controller for each sub-ventilated floor; the main controller is used to obtain the average ventilation volume Q _j ; the sub-controller is used to obtain the current ventilation Q _i; the main controller or the sub-controller for determining whether the current is greater than the ventilation rate Q _i Q _j of the average ventilation rate and the difference reaches a preset threshold value K, and if yes, the control The movable baffle slides relative to the fixed plate to reduce the ventilation area of the ventilation hole.

Preferably, the ventilation floor of the computer room further includes a wind speed collection element arranged on the sub-ventilation floor, and the wind speed collection element is communicatively connected with the controller and is used to collect the current wind speed of the ventilation hole, and the controller Obtain the current ventilation rate Q _i according to formula (1), and obtain the average ventilation rate Q _j according to formula (2);

Q _i ＝V _i ×S _i (1)

Among them, n represents the number of the sub-ventilated floors, Q _j represents the average ventilation of the entire computer room, and Q ₁ , Q ₂ , Qi and Q _n _{represent the number of sub-ventilated floors 1, 2, i,} and n, respectively current ventilation, V _i of the i-th sub-block of the current wind speed ventilation floor, S _i representative of said ventilating area of the i-th sub-block vent tiles.

Preferably, the wind speed collecting element is a thermal wind speed sensor.

Preferably, the fixing plate is provided with a plurality of the ventilation holes, and the ventilation area refers to the sum of the ventilation area of each ventilation hole.

Preferably, the sub-ventilated floor further includes a driving mechanism for driving the movable baffle to slide relative to the fixed plate; the driving mechanism includes a motor and a gear rack assembly that meshes with each other. The rack of the rack and pinion assembly is fixedly mounted on the fixed plate, the gear of the rack and pinion assembly is fixedly mounted on the movable baffle, the motor is fixedly mounted on the movable baffle, and the armature of the motor The shaft penetrates the installation center hole of the gear and is fixedly connected with the gear.

On the other hand, the present invention also provides a control method for the ventilation floor of a machine room, characterized in that the ventilation floor of the machine room comprises a plurality of sub-ventilated floors spliced with each other, and the sub-ventilated floors comprise fixed plates and movable baffles. Ventilation holes are opened on the fixed plate, the movable baffle and the fixed plate are superimposed up and down, and the movable baffle can slide relative to the fixed plate, so as to adjust the ventilation area of the ventilation hole; the control a method comprising: obtaining the current ventilation sub-floor ventilation Q _i and the average ventilation throughout the room Q _j; determines the current ventilation Q _i is larger than the average ventilation Q _j and the difference reaches a preset threshold K; if yes, controlling the flapper relative to the fixed plate to reduce sliding ventilating area of the vent hole, otherwise acquiring step of Q _i and Q _j.

Preferably "Get the current ventilation sub-floor ventilation Q _i and the average ventilation throughout the room Q _j" comprises: obtaining the current wind speed vent hole and vent area V _i S _i; according to the formula (1 ) to calculate the current sub-floor ventilation ventilation Q _i:

Q _i ＝V _i ×S _i (1)

According to formula (2), calculate the average ventilation Q _{j in} the entire computer room:

Preferably, the control method further includes: determining whether the current ventilation area of the sub-ventilated floor is the maximum ventilation area, and if not, controlling the movable baffle to slide relative to the fixed plate to increase the current ventilation current area until the vent area to maximize ventilation area before entering acquisition Q _i and Q _j steps, if the current continues to judge the ventilating area of the sub-floor ventilation whether the maximum ventilation area.

Preferably, after “controlling the movable baffle to slide relative to the fixed plate to increase the current ventilation area until the current ventilation area reaches the maximum ventilation area”, the control method further includes: turning on the air conditioning unit and remain in the cooling mode when a predetermined length, and then proceeds to step before acquiring Q _i and Q _j; and / or said control method further comprising: when said current is greater than the ventilation rate Q _i Q _j and the average ventilation rate difference When the value reaches the preset threshold K, first determine whether the current ventilation area of the sub-ventilated floor reaches the minimum allowable threshold K _min , and if so, return to the step “control the movable baffle to slide relative to the fixed plate to increase the The current ventilation area until the current ventilation area reaches the maximum ventilation area", if otherwise, the movable baffle is controlled to slide relative to the fixed plate to reduce the current ventilation area of the ventilation hole.

The present invention provides a control method for a ventilation floor of a machine room. The control method is suitable for a specific machine room ventilation floor. The machine room ventilation floor includes a plurality of sub-ventilated floors spliced with each other, and the sub-ventilated floor includes a fixed plate and a movable baffle. ; The fixed plate is provided with ventilation holes, and the movable baffle and the fixed plate are superimposed and arranged up and down, and the movable baffle can slide relative to the fixed plate, so as to adjust the ventilation area of the ventilation hole. The control method comprises: in the current average amount of ventilation ventilation acquisition sub-floor ventilation entire room and Q _i Q _j, and then determines whether the current ventilation Q _i Q _j is greater than the average amount of ventilation and the difference reaches a preset threshold value K, if , The movable baffle is controlled to slide relative to the fixed plate to reduce the ventilation area of the ventilation hole.

This control method dynamically controls the floor ventilation of each area in the computer room, ensuring the uniformity of air supply to each area in the computer room, avoiding the generation of local hot spots, and improving the reliability of server operation, and the air conditioning unit is at an appropriate speed Running under the static pressure of the air outlet can ensure the uniform cooling of the server in the room, avoid the high-speed operation of the fan of the unit, and improve the reliability and energy saving of the air conditioning unit itself.

Description of the drawings

Figures 1a and 1b are respectively the front and top structural schematic diagrams of the air supply application scenario of the ventilation floor of the computer room.

Figures 2a and 2b are respectively a front view and a partial cross-sectional side view of the structure of the ventilation floor of the machine room of the present invention;

Figure 2c is a schematic diagram of the structure of the fixed plate;

Figure 2d is a schematic diagram of the structure of the movable baffle;

Figure 3 is a flow chart of the main steps of the control method for the ventilation floor of the machine room of the present invention;

Fig. 4 is a detailed step flow chart of the method for controlling the ventilation floor of the machine room according to the present invention.

Among them, the corresponding relationship between the names of the components in Figures 2a-2d and the corresponding reference signs is:

1 fixed board, 1a ventilation hole, 2 movable baffle, 20 wind deflector, 21 connecting board, 30 motor, 31 rack, 4 wind speed collection element, 5 sub-controller.

Detailed ways

The preferred embodiments of the present invention will be described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.

In the description of this application, "controller" may include hardware, software, or a combination of both. Correspondingly, the method of the present invention can be implemented in the form of software or a combination of software and hardware. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

The ventilation floor of the machine room of the present invention is mainly suitable for installation in the machine room where the server cabinet is placed. Of course, it can also be installed in other buildings according to actual needs. Next, the working principle of the computer room ventilation floor will be explained in detail with reference to the front and top view structural schematic diagrams of the computer room ventilation floor air supply application scene shown in Figures 1a and 1b respectively. Among them, the dotted line with an arrow in Figure 1a

Indicates the flow direction of the cold air of the air conditioning unit.

Refer to Figures 1a and 1b. The ventilation floor of the computer room is installed on the floor of the computer room. The ventilation floor and the ground are enclosed to form an air supply channel. The air conditioning unit is placed on the ventilation floor of the computer room. The air hole is connected to the air supply channel. One port of the air supply pipe of the air conditioning unit is connected to the air supply port of the air conditioning unit, and the other port is connected to the air supply hole of the ventilation floor of the computer room. The server cabinets are placed on the ventilation floor of the computer room and on the ventilation floor of the computer room. A number of ventilation holes are provided, and the ventilation holes are connected with the air supply channel.

When the cooling mode of the air conditioning unit is started, the cold air of the air conditioning unit is introduced into the air duct through the air supply pipe, and then enters the computer room through the ventilation holes on the ventilation floor of the computer room to cool down the electronic components in the server cabinet.

As mentioned in the background art, under normal circumstances, the room area of the computer room is relatively large. In the area close to the air conditioning unit, the static pressure of the air supply is large and the floor ventilation volume is large. In the area far away from the air conditioning unit, due to the loss of wind pressure , The ventilation of the ventilated floor of the computer room is small, and the electronic components in the server in this area cannot sufficiently dissipate heat, causing the problem of poor server stability due to local overheating.

To this end, the present invention provides a computer room ventilation floor. With reference to Figures 1b and 2a, the computer room ventilation floor includes a plurality of sub-ventilated floors spliced with each other, and the sub-ventilated floor includes a fixed plate 1 and a movable baffle 2; among them, the fixed plate 1 is provided with a vent hole 1a, the movable baffle 2 and the fixed plate 1 are stacked up and down, and the movable baffle 2 can slide relative to the fixed plate 1, so as to adjust the ventilation area of the vent hole 1a.

In detail, as shown in Figure 1b, the computer room ventilation floor in this embodiment includes n sub-ventilated floors. It can be understood that the number of sub-ventilated floors depends on factors such as the size of the computer room space, and those skilled in the art can set it according to actual application scenarios. Certainly.

Next, combine the front and partial cross-sectional side structural schematic diagrams of the ventilation floor of the machine room shown in FIGS. 2a and 2b, the structural schematic diagram of the fixed plate shown in FIG. 2c, and the structural schematic diagram of the movable baffle shown in FIG. 2d , To explain in detail the specific structure of each component of the sub-ventilated floor and the assembly relationship between each other.

Referring to Figures 2a-2c, the fixed plate 1 is specifically a square plate. The fixed plate 1 is provided with a number of elongated ventilation holes 1a along the sliding direction of the movable baffle 2 (the direction indicated by the dotted line with arrow in Figure 2c) The fixed plate 1 has 9 groups of ventilation holes 1a, and the first distance D1 between adjacent two groups of the 9 groups of ventilation holes 1a is equal, and the length of each ventilation hole 1a is H. Along the sliding direction perpendicular to the movable baffle 2 (the direction indicated by the solid line with arrows in Figure 2c), each of the 9 groups of ventilation holes 1a includes 15 ventilation holes 1a, and these 15 ventilation holes 1a are again evenly distributed. Divided into 5 groups of ventilation holes 1a, the second distance D2 between adjacent two groups of the 5 groups of ventilation holes 1a is equal, and the third distance D3 between two adjacent ventilation holes 1a in each group is equal and adjacent The second distance D2 between the two groups of ventilation holes 1a is greater than the third distance D3 between two adjacent ventilation holes 1a in each group.

It should be noted that the fixing plate 1 in this embodiment is provided with a number of ventilation holes 1a. These ventilation holes 1a have the function of dispersing the divided cold air, so that the cold air can be introduced into the computer room more evenly. Based on the function of introducing cold air into the computer room in the air channel, only one ventilation hole 1a may be provided on the fixed plate 1.

2a, 2b and 2d, the movable baffle 2 includes 9 wind deflectors 20 and two connecting plates 21, wherein, along the sliding direction of the movable baffle 2 (the direction indicated by the arrow and the dotted line in Fig. 2d), 9 The fourth distance D4 between two adjacent wind deflectors 20 of each wind deflector 20 is equal, and the fourth distance D4 between two adjacent wind deflectors 20 is equal to the first distance between two adjacent sets of ventilation holes 1a. Spacing D1. In the sliding direction perpendicular to the movable baffle 2 (the direction indicated by the solid arrow line in Figure 2d), the length L of each wind deflector 20 is sufficient to cover the corresponding plurality of ventilation holes 1a on the fixed plate 1. In the sliding direction of the movable baffle 2, the width B of each wind deflector 20 is sufficient to cover the length H of the ventilation hole 1 a on the fixed plate 1. In addition, the two connecting plates 21 are arranged at intervals and used to connect and fix the nine windshields 20, and the specific numerical range of the distance between the two connecting plates 21 only needs to satisfy the stable relative positional relationship between the nine windshields 20, The windshield 20 and the connecting plate 21 can be connected by screws or directly bonded.

In the initial state of the sub-ventilated floor, the superimposed area of the fixed board 1 and the movable baffle 2 is the smallest, and all the ventilation holes 1a on the fixed board 1 are in a 100% open state, that is, the ventilation area of the sub-ventilated floor is the largest at this time. The movable baffle 2 slides relative to the fixed plate 1. The first wind baffle 20 of the movable baffle 2 gradually blocks the first set of ventilation holes 1a on the fixed plate 1. The ventilation area of the sub-ventilated floor gradually decreases, and the movable baffle The board 2 continues to slide in the same direction with respect to the fixed board 1 until the wind deflector 20 completely blocks all the ventilation holes 1a of the fixed board 1, so that the ventilation area of the sub-ventilated floor is at least zero.

It should be noted that the fixed plate 1 and the movable baffle 2 are arranged on top of each other, and the movable baffle 2 can slide relative to the fixed plate 1. The fixed plate 1 and the movable baffle 2 can be the movable baffle 2 on the top, and the fixed plate 1 on the bottom. However, in this embodiment, the fixed plate 1 is on the top and the movable baffle 2 is on the bottom. That is, the movable baffle 2 is buried in the air supply channel, so that on the one hand, the user can freely place it on the sub-ventilated floor. Walking around, activities are not restricted, on the other hand, the overall appearance of the ventilated floor of the machine room can be neat and beautiful.

In addition, the movable baffle 2 is assembled by multiple long strips. Compared with a whole solid square plate as the movable baffle 2, the movable baffle 2 of the assembled structure in this embodiment is lighter and drives the movable baffle. When the plate 2 slides relative to the fixed plate 1, the load is small. Of course, the specific structure of the movable baffle 2 is not limited to the two structures exemplified herein.

Further, the movable baffle 2 slides relative to the fixed plate 1 under the driving action of the driving mechanism. For details, referring to FIG. 2b, the driving mechanism includes a motor 30 and a rack and pinion assembly that meshes with each other. It is fixedly installed on the fixed plate 1, and its length direction extends along the sliding direction of the movable baffle 2. The motor 30 is fixedly installed on the movable baffle 2, and its armature shaft penetrates the central mounting hole of the gear of the rack and pinion assembly. Fixed connection with it. When the motor 30 is running, the gear rotates with the armature shaft of the motor 30 and meshes with the teeth of the rack 31 one by one to drive the movable baffle 2 to slide relative to the fixed plate 1 along the length of the rack 31 to realize the ventilation of the adjustable sub-ventilated floor. The purpose of the area.

It should be noted that, on the basis of meeting the function of driving the movable baffle 2 to slide relative to the fixed plate 1 to adjust the ventilation area of the sub-ventilated floor and the assembly process requirements, the driving mechanism also includes a motor and a screw nut transmission assembly. Among them, the motor Installed on the movable baffle 2, the screw-nut drive assembly includes a screw and a nut that are threadedly connected to each other. The screw can be fixedly installed on the fixed plate 1, and the nut is fixedly connected to the armature shaft of the motor 30 and rotates coaxially with it. When the motor is running, the nut rotates coaxially with its armature shaft and moves along the direction of the screw while engaging with the screw to drive the movable baffle 2 to slide relative to the fixed plate 1 to achieve the purpose of adjusting the ventilation area of the sub-ventilated floor.

The driving mechanism can also be a hydraulic transmission mechanism, which includes at least an oil pump, a hydraulic cylinder, a hydraulic control valve and a pipeline; wherein the cylinder body of the hydraulic cylinder is fixedly connected to the fixed plate 1, and the piston rod is fixed to the movable baffle 2. Connection, the oil pump and the hydraulic cylinder are connected by pipelines and hydraulic control valves. By controlling the hydraulic control valve, the hydraulic oil in the oil pump is pumped into different cavities of the hydraulic cylinder to push the piston rod to reciprocate in the cylinder and then drive the movable baffle 2 Sliding relative to the fixed plate 1 to achieve the purpose of adjusting the ventilation area of the sub-ventilated floor.

The machine room floor further comprises a controller configured to average the amount of ventilation in the current acquisition sub ventilation vent and the entire floor of the room Q _i Q _j, and determines whether the current ventilation amount Q _i is larger than the average ventilation Q _j and the difference reaches the preset threshold K. If so, the movable baffle 2 is controlled to slide relative to the fixed plate 1 to reduce the ventilation area of the ventilation hole 1a.

It should be noted that for the sub-ventilated floor including several ventilation holes 1a in this embodiment, the ventilation area here refers to the sum of the ventilation areas of all the ventilation holes 1a.

Further, the controller includes a main controller and sub-controller 5 for each of the sub-floor ventilation; wherein the main controller is configured to obtain the average ventilation Q _j; sub-controller 5 for acquiring the current ventilation rate Q _i, and determines Whether the current ventilation volume Q _i is greater than the average ventilation volume Q _j and the difference reaches the preset threshold K, if so, the movable baffle 2 is controlled to slide relative to the fixed plate 1 to reduce the ventilation area of the ventilation hole 1 a.

Preferably, the controller 5 Example neutrons by the equation (1) Get the current corresponding to the ventilation rate of the sub-floor ventilation Q _i according to the present embodiment:

Q _i ＝V _i ×S _i (1)

Where, Q _i represents the current sub-ventilation of the ventilation floor block i, V _i i-th sub-block of the current wind speed ventilation floor, S _i representing the current sub-area ventilating ventilation floor block i.

The current wind speed of the sub-ventilated floor is obtained by the wind speed collecting element 4, which is connected to the controller in communication and used to collect the current wind speed of the vent 1a. In detail, the wind speed pickup element 4 is arranged in a ventilation vent Confucius floor 1a, a current is detected by the vent hole 1a Winds V _i. The wind speed collecting element 4 preferably adopts a thermal wind speed sensor. The thermal wind speed sensor uses a hot wire (tungsten wire or platinum wire) or a hot film (a thin film made of platinum or chromium) as the probe, which is exposed to the air to be measured, and Connect it to the Wheatstone bridge, and detect the air flow velocity of the measured cross-section through the balance of the resistance or current of the Wheatstone bridge. It can be understood that the wind speed collecting element 4 is not limited to this type on the basis of meeting the function of collecting the wind speed of the ventilation hole 1a and the installation requirements.

The way to obtain the ventilation area of the sub-ventilated floor is: as the relative displacement between the fixed plate 1 and the movable baffle 2 changes, the cross-sectional area of the ventilation hole 1a can be linearly changed between S0 and 0, where S0 is When all the ventilation holes 1a of the fixed plate 1 are not blocked by the movable baffle 2, the maximum cross-sectional area of one of the ventilation holes 1a, that is, the maximum ventilation area of a ventilation hole 1a, 0 is the movable baffle 2 is equivalent to the fixed plate 1 sliding to all When the ventilation hole 1a is completely blocked, the ventilation area of the ventilation hole 1a is zero. Now take the stepping motor 30 as an example in the driving mechanism to illustrate. If the rated step number of the stepping motor 30 is set to 0～500 steps, the ventilation area of the corresponding sub-ventilated floor is between 100% and 0. _{Linear transformation, the current ventilation area S i of} the i-th sub-ventilated floor is calculated according to the following formula:

S _i ＝w×S ₀ ×(1-m/500)

Among them, m represents the number of rotation steps of the stepping motor 30, and w represents the number of ventilation holes 1a on the sub-ventilation floor.

It should be noted that this article only uses the stepper motor 30 as an example to illustrate how to obtain the current ventilation area of the sub-ventilated floor. It can be understood that when different driving mechanisms are used, the current ventilation area of the sub-ventilated floor is obtained. The method will be different, and those skilled in the art can make adaptive adjustments with reference to the acquisition method of the stepper motor 30 described above.

Further, the controller obtains the average ventilation rate Q _{j of the} entire computer room through formula (2);

Among them, n represents the number of the sub-ventilated floors, Qj represents the average ventilation volume of the entire machine room, and Q1, Q2, Qi and Qn represent the current ventilation volume of the 1, 2, i, and n-th sub-ventilated floors, respectively.

It should be noted that the computer room ventilation floor can be equipped with a main controller separately, but in order to save the cost of the computer room ventilation floor, the computer room ventilation floor of the present invention can also select one of the multiple sub-controllers 5 as the main controller. The controller 5 not only needs to complete the work content of the main controller, but also needs to complete its own work requirements.

Further, it is noted that the functions of the main controller of the present embodiment is for obtaining the average ventilation Q _j; sub-controller 5 for acquiring the current ventilation rate Q _i, and determines whether the current ventilation amount Q _i is larger than the average ventilation Q _j and the difference reaches the preset threshold K, and according to the judgment result, the movable baffle 2 is controlled to slide relative to the fixed plate 1 to reduce the ventilation area of the ventilation hole 1a, and in order to reduce the overall production cost of the ventilation floor of the computer room, further cost In the embodiment, the main controller is a designated one of a plurality of self-controllers. It can be understood that the main controller alone can perform multiple functions. For example, the main controller can not only obtain the average ventilation volume Q _j , but also determine whether the current ventilation volume Q _i is greater than the average ventilation volume Q _j and the difference reaches the preset threshold K, And according to the judgment result, the movable baffle 2 is controlled to slide relative to the fixed plate 1 to reduce the ventilation area of the ventilation hole 1a.

In summary, the computer room ventilation floor of the present invention is spliced by multiple sub-ventilation floors, and the ventilation area of the sub-ventilation floor is adjustable. The controller determines the current ventilation volume of each sub-ventilation floor and the average ventilation volume in the entire computer room, and then according to The judgment result is used to dynamically adjust the air supply volume of each sub-ventilation floor in the computer room to ensure the uniformity of air supply in each area of the computer room, avoid the occurrence of local hot spots, and improve the reliability of server operation. Operation under wind and static pressure can ensure uniform cooling of the server in the room, avoid the high-speed operation of the fan of the unit, and improve the reliability and energy saving of the air conditioning unit.

In addition, the present invention also provides a method for controlling the ventilation floor of a computer room. The ventilation floor of the computer room includes a plurality of sub-ventilated floors spliced with each other. Each sub-ventilated floor includes a fixed plate and a movable baffle; wherein the fixed plate is provided with ventilation holes, The fixed plate and the movable baffle are arranged on top of each other, and the movable baffle can slide relative to the fixed plate, so as to adjust the ventilation area of the vent hole.

The main steps of the control method for the ventilation floor of the machine room of the present invention will be briefly introduced below in conjunction with FIG. 3.

Referring to Figure 3, the control method mainly includes:

Step S1: Obtain the current ventilation rate Q _{i of the} sub-ventilated floor and the average ventilation rate Q _{j in the} entire computer room;

Step S2, it is determined whether the current ventilation rate Q _i Q _j is greater than the average amount of ventilation and the difference reaches a preset threshold value K, and if yes, the process proceeds to step S3, the otherwise returns to step S1.

Step S3: Control the movable baffle to slide relative to the fixed plate to reduce the ventilation area of the ventilation hole.

Further, in order to facilitate a better and more detailed understanding of the control method of the above-mentioned machine room ventilation floor, the following description will be given with reference to the detailed step flow chart of the control method of the machine room ventilation floor of the present invention in FIG. 4.

In detail, referring to FIG. 4, step S1 of the control method includes:

Step S10, the obtaining ventilation floor vent Confucius current wind speed V _i and the ventilation area S _i;

Step S11, the formula (1) to calculate the current ventilation rate of the sub-floor ventilation Q _i:

Q _i ＝V _i ×S _i (1)

Step S12: Calculate the average ventilation rate Q _{j in the} entire computer room according to formula (2):

Wherein, n representing the number of sub-floor ventilation, Q _j represents the average of the entire room _{_{ventilation, Q 1, Q 2, Q}} i and Q, respectively, _n represents the 1,2, i n and the sub-blocks of the current ventilation vent tiles quantity.

Continuing to refer to Figure 4, the control method also includes:

Step S00: Determine whether the current ventilation area of the sub-ventilated floor is the maximum ventilation area, if not, go to step S01, if yes, return to step S00 to continue to determine whether the current ventilation area of the sub-ventilated floor is the maximum ventilation area.

Step S01: Control the movable baffle to slide relative to the fixed plate to increase the current ventilation area of the sub-ventilated floor until the current ventilation area reaches the maximum ventilation area, and then enter step S10.

This control method ensures that the ventilation holes of all sub-ventilated floors are fully opened in the initial state by adding steps S00 and S01, that is, when the movable baffle and the fixed plate are in the initial relative position, the movable baffle does not block any one of the fixed plates Vents.

Continuing to refer to FIG. 4, after step S01, the control method further includes step S02, turning on the air conditioning unit and keeping it in the cooling mode for a preset period of time before entering step S10. In this way, sufficient cold air can be provided in the air supply channel to reach the area where each sub-ventilation floor is located. At this time, the current wind speed obtained is more accurate, and the control accuracy of the control method can be improved.

It should be noted that the setting of the preset duration of the air-conditioning unit operating in the cooling mode in step S02 depends on the power of the air-conditioning unit and the size of the room in the computer room. Those skilled in the art can set it according to actual application scenarios, preferably Ground, the preset duration of the air conditioning unit operating in the cooling mode can be set to 10 minutes.

Continuing to refer to FIG. 4, the current ventilation sub-floor ventilation Q _i and the average of the entire room ventilation Q _j determined, re-entering the step S2, it is determined whether the current ventilation rate Q _i Q _j is greater than the average amount of ventilation and the difference reaches a preset the threshold value K, if the process proceeds to step S21, the procedure returns to S10 otherwise obtaining ventilation floor vent Confucius current wind speed V _i and the ventilation area S _i.

Step S21: Determine whether the ventilation area of the sub-ventilated floor reaches the minimum allowable threshold K _min , if yes, return to step S01, otherwise go to step S3 to control the movable baffle to slide relative to the fixed board to reduce the current ventilation area of the sub-ventilated floor.

It should be noted that the minimum allowable threshold K _min can be 5%-10% of the maximum ventilation area of the sub-ventilated floor. When the current ventilation area of the sub-ventilated floor reaches the minimum allowable threshold K _min , it indicates that the ventilation holes of the sub-ventilated floor are about to It is completely blocked by the movable baffle. If the ventilation area is continuously reduced at this time, there is a possibility that the ventilation holes may be completely sealed, which will cause local overheating in the area where the sub-ventilation floor is located. This type of problem can be avoided by adding step S21 , To ensure the reliability of the ventilation floor of the computer room.

It is conceivable that the control method of the computer room ventilation floor of the present invention dynamically adjusts the air supply volume of each sub-ventilation floor in the computer room to ensure the uniformity of the air volume in each area in the computer room, avoid the generation of local hot spots, and improve the operation of the server. Reliability, and the air-conditioning unit runs at a suitable speed and static pressure of the air outlet, which can ensure the uniform cooling of the server in the room, avoid the high-speed operation of the fan of the unit, and improve the reliability and energy saving of the air-conditioning unit.

So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

A computer room ventilated floor, which is characterized by comprising a plurality of sub-ventilated floors spliced with each other, the sub-ventilated floor includes a fixed plate and a movable baffle; the fixed plate is provided with ventilation holes, the movable baffle and the The fixed plate is superimposed and arranged up and down, and the movable baffle can slide relative to the fixed plate, so as to adjust the ventilation area of the vent hole;

The machine room floor further comprises a controller, the controller being configured to acquire the current ventilation sub-floor ventilation within the ventilation average Q I Q J and the entire room, and determine whether the current ventilation Q Whether i is greater than the average ventilation volume Q j and the difference reaches a preset threshold K, if yes, control the movable baffle to slide relative to the fixed plate to reduce the ventilation area of the ventilation hole.
The computer room ventilated floor according to claim 1, wherein the controller comprises a main controller and a sub-controller for each of the sub-ventilated floors;

The main controller is used to obtain the average ventilation volume Q j ;

The sub-controller is configured to obtain the current ventilation Q i;

The main controller or the sub-controller is used to determine whether the current ventilation volume Q i is greater than the average ventilation volume Q j and the difference reaches a preset threshold K, and if so, it controls the movable baffle relative to all The fixed plate slides to reduce the ventilation area of the ventilation hole.
The computer room ventilation floor according to claim 1 or 2, wherein the computer room ventilation floor further comprises a wind speed collection element arranged on the sub-ventilation floor, and the wind speed collection element is communicatively connected and used with the controller To collect the current wind speed of the ventilation hole, the controller obtains the current ventilation volume Q i according to formula (1), and obtains the average ventilation volume Q j according to formula (2);

Q i ＝V i ×S i (1)

Among them, n represents the number of the sub-ventilated floors, Q j represents the average ventilation of the entire computer room, and Q 1 , Q 2 , Qi and Q n represent the number of sub-ventilated floors 1, 2, i, and n, respectively current ventilation, V i of the i-th sub-block of the current wind speed ventilation floor, S i representative of said ventilating area of the i-th sub-block vent tiles.
The computer room ventilation floor according to claim 3, wherein the wind speed collection element is a thermal wind speed sensor.
The computer room ventilation floor according to claim 3, wherein the fixing plate is provided with a plurality of ventilation holes, and the ventilation area is the sum of the ventilation area of each ventilation hole.
The computer room ventilated floor according to claim 3, wherein the sub-ventilated floor further comprises a driving mechanism, and the driving mechanism is used to drive the movable baffle to slide relative to the fixed plate;

The driving mechanism includes a motor and a rack and pinion assembly that mesh with each other. The rack of the rack and pinion assembly is fixedly mounted on the fixed plate, and the gear of the rack and pinion assembly is fixedly mounted on the movable baffle. The motor is fixedly installed on the movable baffle, and the armature shaft of the motor penetrates the installation center hole of the gear and is fixedly connected with the gear.
A control method of a computer room ventilation floor, wherein the computer room ventilation floor includes a plurality of sub-ventilated floors spliced with each other, the sub-ventilated floor includes a fixed plate and a movable baffle, and the fixed plate is provided with ventilation holes , The movable baffle and the fixed plate are superimposed up and down, and the movable baffle is slidable relative to the fixed plate, so as to adjust the ventilation area of the vent hole;

The control method includes:

Obtaining the average ventilation within the current sub-floor ventilation ventilation of the entire room, and Q i Q j;

Judging whether the current ventilation volume Q i is greater than the average ventilation volume Q j and the difference reaches a preset threshold K;

If yes, the control flapper relative to the fixed plate to reduce sliding ventilating area of the vent hole, otherwise Q i and Q j is the step of acquiring.
The control method of machine room floor according to claim 7, wherein the "Get the current sub-floor ventilation ventilation Q i and the average ventilation throughout the room Q j" comprises:

Obtaining current wind speed of the vent hole and vent area V i S i;

Calculating the current ventilation sub-floor ventilation according to the formula (1) Q i:

Q i ＝V i ×S i (1)

According to formula (2), calculate the average ventilation Q j in the entire computer room:

Among them, n represents the number of the sub-ventilated floors, Q j represents the average ventilation of the entire computer room, and Q 1 , Q 2 , Qi and Q n represent the number of sub-ventilated floors 1, 2, i, and n, respectively current ventilation, V i of the i-th sub-block of the current wind speed ventilation floor, S i representative of said ventilating area of the i-th sub-block vent tiles.
The control method for a ventilated floor of a computer room according to claim 7 or 8, wherein the control method further comprises:

Determine whether the current ventilation area of the sub-ventilation floor is the maximum ventilation area, if not, control the movable baffle to slide relative to the fixed plate to increase the current ventilation area until the current ventilation area reaches the maximum ventilation area, before entering step "Get the current ventilation sub-floor ventilation Q i and the average ventilation throughout the room Q j", and continues to determine if the current ventilation area of the sub-floor ventilation is returned whether the maximum ventilation area.
The method for controlling a ventilated floor in a computer room according to claim 9, characterized in that, in "control the movable baffle to slide relative to the fixed plate to increase the current ventilation area until the current ventilation area reaches the maximum ventilation area "Thereafter, the control method further comprising: the open air and holding unit for preset length in a cooling mode, before entering" mean the ventilation amount in acquiring the current sub-floor ventilation ventilation Q I and Q of the entire room j "; and/or,

The control method further comprising: when said current is greater than the ventilation rate Q i Q j and the average ventilation rate difference when K reaches a preset threshold, determining that the first sub-floor ventilation ventilation area reaches the current minimum allowed threshold value K min , if yes, return to the step of "control the movable baffle to slide relative to the fixed plate to increase the current ventilation area until the current ventilation area reaches the maximum ventilation area", if not, control the movable baffle relative to Sliding on the fixed plate to reduce the current ventilation area of the ventilation hole.