Plasma generator, refrigeration equipment and heat dissipation early warning and control method

Abstract

The invention discloses a plasma generator, refrigeration equipment and a heat dissipation early warning and control method.The plasma generator comprises an insulation support, an electromagnetic shielding piece and an ionization unit, the electromagnetic shielding piece and the ionization unit are arranged on the insulation support, the electromagnetic shielding piece and the insulation support are combined to form an electromagnetic shielding cavity, and the ionization unit is arranged in the electromagnetic shielding cavity; the ionization unit comprises at least one group of collector modules and electrode modules which are oppositely arranged at intervals, and the collector modules and the electrode modules are matched to ionize air and generate flowing airflow. According to the invention, the electromagnetic shielding cavity formed by the electromagnetic shielding member and the insulating support can effectively prevent electromagnetic interference caused to external equipment or parts when the ionization unit works, so that the use safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, and in particular to a plasma generator, a refrigeration equipment, and a heat dissipation warning and control method. Background Art

[0002] At present, a large number of refrigeration equipment are used in systems such as data centers. Most of the existing refrigeration equipment uses leaf fans for external heat exchange. The volume of a single fan is large, which makes it difficult to layout the internal structure of the refrigeration equipment, and it is difficult to compress the overall volume. Moreover, the upper limit of the wind speed is low, making it difficult to further improve the heat dissipation capacity of the refrigeration equipment. It has a large rotational inertia, a long speed regulation time, and a large rotational noise, making it difficult to be arranged near residential areas.

[0003] Facing these technical problems, there are currently refrigeration equipment based on plasma wind on the market. The characteristic of this kind of refrigeration equipment is that it can be without fan blades, thus avoiding the disadvantages brought by traditional leaf fans. However, the current refrigeration equipment based on plasma wind is prone to cause electromagnetic interference to the electronic equipment arranged around it during use, and thus is prone to safety accidents. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a plasma generator, a refrigeration equipment, and a heat dissipation warning and control method.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] In the first aspect, the present invention provides a plasma generator, which includes an insulating bracket, an electromagnetic shielding member and an ionization unit arranged on the insulating bracket. The electromagnetic shielding member and the insulating bracket form an electromagnetic shielding cavity, and the ionization unit is arranged in the electromagnetic shielding cavity. The ionization unit includes at least one set of collection electrode modules and electrode modules arranged at intervals relatively. The collection electrode module and the electrode module cooperate to ionize air and generate a flowing air current.

[0007] Further, the insulating bracket includes a main frame body, a first outer frame body and a first inner frame body. The first outer frame body is arranged on the outside of the main frame body, and the first inner frame body is arranged on the inside of the main frame body. The electromagnetic shielding member is arranged on both the first outer frame body and the first inner frame body. The collection electrode module and the electrode module are arranged between the first outer frame body and the first inner frame body.

[0008] Further, the insulating bracket further includes a first mounting frame and a second mounting frame. The first mounting frame and the second mounting frame are arranged between the main frame body and the first inner frame body, and the first mounting frame is arranged close to the main frame body. The collection electrode module is arranged in the first mounting frame, and the electrode module is arranged in the second mounting frame.

[0009] Further, the electrode module includes an insulating substrate, and a plurality of needle-shaped electrodes are provided on one side of the insulating substrate close to the collector module. The collector module includes a collector substrate, and a plurality of metal meshes are provided on the collector substrate.

[0010] Further, a spacing adjustment assembly is further included. The spacing adjustment assembly is used to adjust the spacing between the collector module and the electrode module. The spacing adjustment assembly includes a driving member, and the driving member is used to drive one of the collector module and the electrode module to move towards or away from the other.

[0011] Further, an insulating protection member is further included. The insulating bracket further includes a second outer frame and a second inner frame. The second outer frame is located outside the first outer frame, and the second inner frame is located inside the first inner frame. The insulating protection member is provided on both the second outer frame and the second inner frame.

[0012] In a second aspect, the present invention further provides a refrigeration device, including a device main body and the above-mentioned plasma generator. The plasma generator is disposed in a gas flow ventilation duct between the air inlet and the air outlet of the device main body, and the plasma generator causes the air in the gas flow ventilation duct to flow from the air inlet of the device main body to the air outlet of the device main body.

[0013] Further, an air inlet protective cover is provided at the air inlet of the device main body.

[0014] Further, the device main body further includes a monitoring component and a cloud platform. The monitoring component includes a sensor and a controller. The controller is connected to the sensor, a power supply module, the cloud platform, and the main controller of the device main body. The sensor monitors the ionization unit, and the power supply module supplies power to the monitoring component and the plasma generator.

[0015] In a third aspect, the present invention further provides a method for heat dissipation warning and control of a refrigeration device, including:

[0016] Obtaining monitoring data in real time;

[0017] Comparing the real-time monitoring data of a single device with a set threshold, and comparing the real-time monitoring data of different devices with the data change trend, and the discrete degree of the historical operation data and the data change trend, to determine whether the refrigeration device has an abnormal situation;

[0018] If it is determined according to the monitoring data and the data change trend that the refrigeration device has an abnormal situation or is predicted to have an abnormal situation, then the operation state of the plasma generator is controlled and adjusted.

[0019] The beneficial effects of the present invention compared with the prior art are as follows: A plasma generator includes an insulating bracket, an electromagnetic shielding member provided on the insulating bracket, and an ionization unit. The electromagnetic shielding member and the insulating bracket form an electromagnetic shielding cavity, and the ionization unit is disposed in the electromagnetic shielding cavity. The ionization unit includes at least one set of collection electrode modules and electrode modules arranged at intervals relatively. The collection electrode modules and the electrode modules cooperate to ionize air and generate a flowing air current. By using the electromagnetic shielding cavity formed by the electromagnetic shielding member and the insulating bracket, the present invention can effectively prevent electromagnetic interference caused by the ionization unit during operation to external devices or components, thereby improving the safety of use.

[0020] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, the following preferred embodiments are specifically described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 A schematic structural diagram of a plasma generator provided for a specific embodiment of the present invention;

[0023] Figure 2 A schematic structural diagram of a refrigeration device provided for a specific embodiment of the present invention;

[0024] Figure 3 A disassembly of a refrigeration device provided for a specific embodiment of the present invention Figure 1 ;

[0025] Figure 4 A disassembly of a refrigeration device provided for a specific embodiment of the present invention Figure 2 ;

[0026] Figure 5 A combined schematic diagram of a collection electrode module and an electrode module in a plasma generator provided for a specific embodiment of the present invention;

[0027] Figure 6 A system architecture diagram of a refrigeration device provided for a specific embodiment of the present invention;

[0028] Figure 7 A flowchart of a heat dissipation method for a refrigeration device provided for a specific embodiment of the present invention.

[0029] REFERENCE SIGNS

[0030] 1. Plasma generator; 11. Main frame; 12. First outer frame; 121. Electromagnetic shielding part; 13. First inner frame; 14. First mounting frame; 141. Collector module; 15. Second mounting frame; 151. Electrode module; 1511. Needle electrode; 16. Second outer frame; 161. Insulating protection part; 17. Second inner frame; 18. Spacing adjustment component. Specific embodiments

[0031] The technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0037] As Figures 1 to 5 As shown, an embodiment of the present invention provides a plasma generator 1, including an insulating bracket, and an electromagnetic shielding member 121 and an ionization unit disposed on the insulating bracket. The electromagnetic shielding member 121 and the insulating bracket are combined to form an electromagnetic shielding cavity, and the ionization unit is disposed in the electromagnetic shielding cavity. The ionization unit includes at least one set of collecting electrode modules 141 and electrode modules 151 arranged at intervals relatively. The collecting electrode module 141 and the electrode module 151 cooperate to ionize air and generate a flowing air current.

[0038] The insulating bracket, as a basic structural component of the plasma generator 1, plays a role in supporting and fixing other components. At the same time, due to its insulating property, it can prevent current leakage and ensure the use safety. Specifically, the insulating bracket can be made of plastic or other insulating materials, which have good insulating performance and mechanical strength. The material of the insulating bracket can also be selected as alumina ceramic, which also has excellent insulation and relatively high hardness.

[0039] The electromagnetic shielding member 121 can be a metal shielding cover, such as a copper, aluminum or steel metal mesh. The ionization unit is disposed in the electromagnetic shielding cavity. During operation, the electromagnetic shielding cavity can effectively isolate the electromagnetic waves generated by the ionization unit to prevent electromagnetic interference to external devices or components; at the same time, it can also resist the interference of external electromagnetic waves to the ionization unit to ensure its stable operation.

[0040] It should be noted that since electromagnetic shielding only shields electromagnetic interference, in order to allow air to flow smoothly, the electromagnetic shielding member has at least structures such as air holes or air channels.

[0041] The electrode module 151 includes an insulating substrate, and the insulating substrate material can be selected from fiberglass epoxy resin, alumina ceramic, etc.; on the side of the insulating substrate close to the collector module 141, there are several needle-shaped electrodes 1511. The needle-shaped electrodes 1511 can be made of stainless steel and galvanized or sprayed with a Teflon coating to improve corrosion resistance and hydrophobicity. The material of the needle-shaped electrodes 1511 can also be selected from tungsten, copper, titanium alloy, etc. Each needle-shaped electrode 1511 is connected through wires, etched copper foils, metal grids, etc. on the insulating base to form a matrix of multiple needle-shaped electrodes 1511.

[0042] The collector module 141 includes a collector substrate, and the collector substrate is provided with several metal grids. The design of the metal grid holes helps in the collection of ions and the passage of air flow. The collector substrate can be made of stainless steel. In addition, the structure of the collector substrate can also adopt a special flat flow guiding structure in addition to the metal mesh holes.

[0043] When a high voltage is applied to the electrode module 151 and the collector module 141, the needle-shaped electrodes 1511 ionize the air, causing some molecules or atoms in the air to lose electrons and become ions. Under the action of the electric field, the ions move towards the collector module 141 and collide with neutral air molecules, thereby generating a flowing air current.

[0044] The present invention can effectively prevent electromagnetic interference, improve the safety and stability of the plasma generator 1 during use, reduce the impact on surrounding electronic devices, and ensure the normal operation of the entire refrigeration equipment system.

[0045] As Figure 4 shown, the insulating bracket includes a main frame 11, a first outer frame 12 and a first inner frame 13. The first outer frame 12 is arranged on the outside of the main frame 11, and the first inner frame 13 is arranged on the inside of the main frame 11. Both the first outer frame 12 and the first inner frame 13 are provided with electromagnetic shielding members 121. The collector module 141 and the electrode module 151 are arranged between the first outer frame 12 and the first inner frame 13.

[0046] The main frame 11 can be processed from plastic or other insulating material plates through processes such as cutting and punching, cut into a suitable rectangular frame shape, and holes are punched at the four corners of the frame for subsequent connection and fixation with other frames. The thickness of the main frame 11 can be selected according to actual load-bearing requirements.

[0047] The first outer frame 12 is arranged on the outside of the main frame 11, and its main function is to provide a carrier for installing the electromagnetic shielding member 121 together with the main frame 11 and the first inner frame 13. The size of the first outer frame 12 is adapted to that of the main frame 11 and can be closely attached to the outside of the main frame 11. During the manufacturing process, a groove can be opened on the surface of the first outer frame 12 facing the main frame 11 for embedding the electromagnetic shielding member 121.

[0048] The first inner frame 13 is arranged inside the main frame 11 and corresponds to the first outer frame 12, jointly enclosing an internal space. The structure and manufacturing process of the first inner frame 13 are similar to those of the first outer frame 12, and plastic or other insulating materials are also used. During installation, the first inner frame 13 is connected to the main frame 11 by bolts, and the spacing of the bolts can be set according to the size of the frame to ensure the stability of the connection. At the same time, the first inner frame 13 is also provided with a structure for installing the electromagnetic shielding member 121, which cooperates with the electromagnetic shielding member 121 on the first outer frame 12 to form a complete electromagnetic shielding layer.

[0049] When the ionization unit works, electromagnetic waves will be generated. If not shielded, it may interfere with surrounding electronic devices, and at the same time, external electromagnetic waves may also affect the normal operation of the ionization unit. The electromagnetic shielding cavity formed by the electromagnetic shielding members 121 on the first outer frame 12 and the first inner frame 13 can effectively isolate these electromagnetic waves. According to the electromagnetic shielding principle, when electromagnetic waves encounter a metal shielding member, an induced current will be generated on the metal surface, and the reverse magnetic field generated by the induced current will cancel part of the incident electromagnetic waves, thus achieving the shielding effect.

[0050] As Figure 4 shown, the insulating bracket further includes a first mounting frame 14 and a second mounting frame 15. The first mounting frame 14 and the second mounting frame 15 are arranged between the main frame 11 and the first inner frame 13, and the first mounting frame 14 is arranged close to the main frame 11. The collecting electrode module 141 is arranged in the first mounting frame 14, and the electrode module 151 is arranged in the second mounting frame 15.

[0051] The first mounting frame 14 and the second mounting frame 15 can be made of the same plastic or other insulating materials as the main body of the insulating bracket and formed by injection molding or cutting processes. During installation, the first mounting frame 14 and the second mounting frame 15 are arranged between the main frame 11 and the first inner frame 13. First, preset mounting grooves or mounting holes on the main frame 11 and the first inner frame 13, and then embed the first mounting frame 14 and the second mounting frame 15 into the mounting grooves or fix them by screwing through the mounting holes. The installation method of the second mounting frame 15 is similar. Through precise installation positioning, the relative positions of the two mounting frames between the main frame 11 and the first inner frame 13 are ensured to be accurate.

[0052] The first mounting frame 14 is arranged close to the main frame body 11, and its internal structure is designed according to the shape and size of the collector module 141. For example, if the collector module 141 is a rectangular flat plate structure, a rectangular groove matching the shape of the collector module 141 can be arranged inside the first mounting frame 14. The depth of the groove is slightly greater than the thickness of the collector module 141, and a rubber material is arranged in the groove so that the collector module 141 can be smoothly embedded and fixed, and at the same time, a shock-absorbing effect is achieved. After the collector module 141 is placed in the groove of the first mounting frame 14, it can be fixed by means of buckles, screws or glue, etc.

[0053] The second mounting frame 15 is used to mount the electrode module 151, and its design also considers the structural characteristics of the electrode module 151. A rectangular groove matching the shape of the electrode module 151 can be arranged inside the second mounting frame 15. The depth of the groove is slightly greater than the thickness of the electrode module 151, and a rubber material is arranged in the groove so that the electrode module 151 can be smoothly embedded and fixed, and at the same time, a shock-absorbing effect is achieved. After the electrode module 151 is placed in the groove of the second mounting frame 15, it can be fixed by means of buckles, screws or glue, etc.

[0054] By setting the first mounting frame 14 and the second mounting frame 15, the orderly installation and precise positioning of the collector module 141 and the electrode module 151 are realized. This hierarchical installation structure avoids the mutual interference of the two modules during the installation process, improves the installation efficiency and accuracy. At the same time, the independent mounting frame provides stable support for the collector module 141 and the electrode module 151, reduces the displacement or loosening of the modules caused by factors such as vibration during the working process, and ensures the stability and reliability of the ionization unit. In addition, the setting of the mounting frame is also beneficial to the separate maintenance and replacement of the collector module 141 and the electrode module 151. When one of the modules fails, it is not necessary to disassemble the entire ionization unit, and only the corresponding mounting frame needs to be disassembled for repair or replacement, reducing the maintenance cost and difficulty.

[0055] It should be noted that in the same plasma generator 1, multiple groups of electrode modules 151 and collector modules 141 can be designed, and multi-stage ionization is realized by superimposing, effectively improving the wind speed without increasing the electrode voltage.

[0056] It also should be noted that multiple groups of electrode modules 151 and collector modules 141 can be made in the form of a segmented array, that is, as Figure 5 shown. Such a design is convenient for low-cost replacement and maintenance in case of a single-point abnormality, and can also ensure that the normal operation of other parts is not affected after some electrode modules 151 and collector modules 141 are damaged.

[0057] As Figure 4As shown, the plasma generator 1 further includes a spacing adjustment assembly 18. The spacing adjustment assembly 18 is used to adjust the spacing between the collector module 141 and the electrode module 151. The spacing adjustment assembly 18 includes a driving member, and the driving member is used to drive one of the collector module 141 and the electrode module 151 to move towards or in the opposite direction of the other.

[0058] The driving member can be a motor, a hydraulic cylinder or a pneumatic cylinder, etc. The transmission method can be a screw and nut sleeve transmission, a gear and rack transmission or a synchronous belt transmission.

[0059] Taking the combination of a motor, a screw and a nut sleeve as the driving member as an example, a fixed bracket is pre-set on the main frame 11 of the insulating bracket. The motor is fixed on the fixed bracket, the nut sleeve is fixed on the collector module 141, one end of the screw is fixedly connected to the output shaft of the motor, and the other end is embedded in the nut sleeve.

[0060] When it is necessary to adjust the spacing between the collector module 141 and the electrode module 151, a corresponding electrical signal is sent to the motor to drive the motor to rotate. The motor converts the rotational motion of the motor into the linear motion of the nut sleeve through the screw. The nut sleeve moves forward or backward, driving the collector module 141 on the first mounting frame 14 connected thereto to move relatively closer to or farther away from the electrode module 151, thereby changing the spacing between the two.

[0061] The setting of the spacing adjustment assembly 18 enables the plasma generator 1 to flexibly adjust the spacing between the collector module 141 and the electrode module 151 according to the actual operation requirements. Under different loads of the refrigeration equipment, by adjusting the voltage and spacing between the collector module 141 and the electrode module 151, the lowest power consumption can be achieved while meeting the air volume requirements. For example, when the refrigeration equipment is in a low-load operation state, the voltage between the collector module 141 and the electrode module 151 can be reduced, and at the same time, the spacing between the collector module 141 and the electrode module 151 can be appropriately reduced to reduce the power consumption; while in a high-load operation, the voltage between the collector module 141 and the electrode module 151 is increased, and at the same time, the spacing between the collector module 141 and the electrode module 151 is controlled to be slightly larger than the electrical clearance required to be maintained under the current voltage, so as to enhance the heat dissipation effect while controlling the power consumption to the lowest.

[0062] As Figure 4 shown, the plasma generator 1 further includes an insulation protection member 161. The insulating bracket further includes a second outer frame 16 and a second inner frame 17. The second outer frame 16 is located outside the first outer frame 12, and the second inner frame 17 is located inside the first inner frame 13. Insulation protection members 161 are provided on both the second outer frame 16 and the second inner frame 17.

[0063] The insulating protection member 161 can be made of a plastic material into a mesh structure, and this material has good insulating properties and strength. The design of the mesh structure can not only ensure the ventilation and heat dissipation requirements, but also prevent personnel from directly contacting the internal high-voltage components, and at the same time avoid foreign objects such as insects from entering the equipment interior. For example, the mesh diameter of the insulating protection member 161 can be set as required according to the usage scenario, so that it can block fingers or metal wires from entering while not affecting air circulation. Similarly, the structural designs of the second outer frame 16 and the second inner frame 17 are the same.

[0064] When installing the insulating protection member 161, for the second outer frame 16 and the second inner frame 17 with a slot structure, first align the edge of the insulating protection member 161 with the slot, and then gently press to embed the insulating protection member 161 into the slot. In order to further enhance the installation stability, a small amount of insulating sealant can be applied to the contact part between the insulating protection member 161 and the slot to prevent the insulating protection member 161 from loosening or shifting. Of course, the installation hole method can also be adopted, and the insulating protection member 161 is fixed to the frame using insulating screws.

[0065] The settings of the second outer frame 16, the second inner frame 17 and the insulating protection member 161 form a multi-layer insulating protection barrier. First, it effectively prevents the operator from accidentally contacting the high-voltage components inside the plasma generator 1, greatly reducing the electric shock risk and ensuring personnel safety. Secondly, it blocks foreign objects such as insects from entering the equipment interior, avoiding faults such as short circuits and component damage caused by foreign objects, and improving the reliability and stability of the operation of the plasma generator 1.

[0066] As Figures 1 to 6 shown, an embodiment of the present invention also provides a refrigeration device, including a device main body and the above-mentioned plasma generator 1. The plasma generator 1 is arranged in the gas flow ventilation duct between the air inlet and the air outlet of the device main body, and the plasma generator 1 makes the air in the gas flow ventilation duct flow from the air inlet of the device main body to the air outlet of the device main body.

[0067] Refrigeration devices can be divided into common types such as liquid chillers and air conditioners, and their interiors include core refrigeration components such as compressors and condensers. Taking an air conditioner as an example, the device main body usually consists of a housing, an internal refrigeration circulation pipeline, an electric control system, etc. The plasma generator 1 is installed in the gas flow ventilation duct between the air inlet and the air outlet of the device main body, and the specific installation position needs to be planned according to the internal space structure of the device main body.

[0068] During the actual installation process, it is first necessary to reserve an installation interface at the corresponding air duct position on the outer shell of the equipment main body. The shape of the interface is adapted to the outer shape of the plasma generator 1. For example, a rectangular interface matches the rectangular plasma generator 1. Taking the outdoor unit of a split air conditioner as an example, a rectangular opening with the same size as the plasma generator 1 is opened on the side of the outdoor unit shell, and an installation flange is set at the edge of the opening. The insulating bracket of the plasma generator 1 is fixedly connected to the installation flange through bolts to ensure firm installation and good sealing. At the same time, to reduce the impact of the vibration generated during the operation of the plasma generator 1 on the equipment main body, a rubber shock pad can be installed between the insulating bracket and the installation flange to play a role in buffering and shock absorption.

[0069] Applying the plasma generator 1 to the gas flow ventilation duct of a refrigeration device has significant advantages in many aspects compared with the traditional heat dissipation method using a leaf fan. First of all, the plasma generator 1 has no rotating parts and is smaller in volume, which can effectively optimize the internal space layout of the refrigeration device, making the overall volume of the device more compact and facilitating installation and transportation. Secondly, the plasma generator 1 can generate a higher upper limit of air flow velocity by increasing the stacking layers and raising the voltage, which can quickly take away the heat of the condenser and significantly improve the heat dissipation capacity of the refrigeration device, ensuring the stable operation of the refrigeration device under high-load working conditions. Moreover, due to no rotational inertia, the plasma generator 1 has a rapid speed regulation response and can immediately and quickly respond and adjust the wind speed according to the real-time heat dissipation requirements of the refrigeration device, greatly reducing the speed regulation time compared with the traditional fan. In addition, when the plasma generator 1 is running, there is no friction between the rotating parts, and the noise is extremely low, which can make the refrigeration device suitable for places with strict noise requirements such as residential areas.

[0070] It should be noted that the plasma generator 1 is not only installed in the gas flow ventilation duct between the air inlet and outlet of the equipment main body, but can also be installed at the corner of the gas flow ventilation duct or on the branch air duct according to the internal structural characteristics of the equipment main body.

[0071] It should be understood that on the basis of retaining the plasma generator 1, a traditional heat dissipation fan can be used in combination at the same time. When the refrigeration device is operating at low load, only the plasma generator 1 is turned on for heat dissipation; when the device is operating at high load, the plasma generator 1 and the heat dissipation fan work together to further enhance the heat dissipation effect. For example, in an industrial chiller in a high-temperature environment, the plasma generator 1 and the heat dissipation fan are started simultaneously during the high-temperature period in summer to ensure the stable refrigeration of the chiller.

[0072] As Figure 3 shown, an air inlet protective cover is provided at the air inlet of the equipment main body. Its main function is to protect the air inlet of the refrigeration device and prevent foreign objects from entering the equipment interior, affecting the long-term stable operation of the equipment. In terms of structural design, the air inlet protective cover can adopt a metal grid structure, such as a stainless steel grid, and a dust-proof cover can be selected according to the use environment. The size of the mesh holes of the grid needs to be designed according to the actual use environment.

[0073] It should be noted that for rainy areas, a rain shield can be installed above the air intake protective cover. The rain shield can be made of arc-shaped plastic or metal plates and fixed above the air intake protective cover through brackets. The length and width of the rain shield need to be greater than those of the air intake protective cover to ensure that the rain can be completely blocked. The brackets can be made of stainless steel and fixed to the rain shield and the main body of the equipment by welding or bolt connection. For example, for outdoor refrigeration equipment in the southern coastal areas, after installing the rain shield, it can effectively prevent rainwater from directly entering the air intake and prevent equipment corrosion and other impacts caused by rainwater.

[0074] As Figure 6 shown, the main body of the equipment also includes a monitoring component and a cloud platform. The monitoring component includes a sensor and a controller. The controller is connected to the sensor, the power supply module, the cloud platform, and the main controller of the equipment body. The sensor monitors the ionization unit, and the power supply module supplies power to the monitoring component and the plasma generator.

[0075] The sensor, as the sensing unit of the monitoring component, is used to collect key data on the operation of the ionization unit and the equipment in real time. For the ionization unit, multiple types of sensors can be deployed, specifically current sensors, voltage sensors, infrared sensors, ultrasonic sensors, thermal imaging cameras, wind speed sensors, temperature sensors, humidity sensors, and thermistors, etc.

[0076] The current sensor and the voltage sensor are usually integrated in the power supply module of the equipment body and are used to monitor the current and voltage parameters when the electrode module 151 and the collector module 141 are working. For example, a Hall current sensor or a shunt is used, encapsulated inside the power supply module, and connected to the controller of the equipment body through a signal line, which can accurately detect the magnitude of the current in the circuit and transmit the data to the controller of the equipment body.

[0077] The infrared sensor, ultrasonic sensor, thermal imaging camera, wind speed sensor, temperature sensor, and humidity sensor are installed on the insulating bracket. The thermistor is directly installed on the electrode to monitor the electrode temperature. For example, an NTC (negative temperature coefficient) thermistor is used, and its resistance value decreases as the temperature rises. By measuring the change in the resistance value, the electrode temperature information can be accurately obtained.

[0078] The controller consists of an MCU (Micro Control Unit) and its control circuit, and communicates with the main controller of the device body. As the core control component, if an ARM series microprocessor is adopted for the MCU, it has powerful data processing and control capabilities. The controller is connected to each sensor through a data line to receive the data collected by the sensor; at the same time, it is connected to the cloud platform, the power supply module, and the main controller of the device body through a communication line and a wireless communication module. For example, it conducts data interaction with the cloud platform through a 4G module, and communicates with the power supply module and the main controller of the device body through a CAN or 485 bus to achieve fast data transmission and accurate receipt of instructions.

[0079] When the refrigeration equipment is running, the sensors continuously collect data. For example, the current sensor monitors the current between the electrodes to judge whether there is an arcing phenomenon; the infrared sensor detects the reflectivity of the electrode surface to evaluate the dust accumulation on the electrode. These data are transmitted to the controller in real time. The controller analyzes and processes the received data. For example, when the controller receives abnormal data from the current sensor and judges that arcing may occur between the electrodes, it immediately takes control measures, such as controlling the power supply module to reduce the voltage between the electrode and the collector, and at the same time uploading the warning information to the main controller of the device body and the cloud platform through the communication line. In addition, when the system is running normally, after the cloud platform receives the data uploaded by the refrigeration equipment, it will compare and analyze the discrete degree of the real-time operation data and data change trend of the refrigeration equipment with those of other refrigeration equipment, as well as the historical operation data and data change trend. For example, through big data analysis algorithms, it conducts cluster analysis on the operation data and data change trend of the same model of refrigeration equipment under the same working conditions for the same duration. If it is found that the data or change trend of a certain device deviates significantly from the data of other systems, the cloud platform will give an early warning, generate a warning message and send it to the operation and maintenance personnel to prompt them to go and check and confirm the risk.

[0080] The monitoring component can effectively monitor risks such as arcing between electrodes, dust accumulation on electrodes, electrode loss, and overheating of electrodes by continuously monitoring the ionization unit and the operation state of the equipment through a variety of sensors, timely discover potential fault hazards, and prevent the expansion of equipment failures. According to the data feedback from the sensors and the requirements of the main controller of the device body, the controller can adjust the plasma generator 1 in real time by controlling the power supply module, such as adjusting parameters such as the power supply between the electrode and the collector, the voltage level, the voltage direction, the voltage duty cycle, and the distance between the electrode and the collector, so that the system can meet the effective heat dissipation requirements under different working conditions, and improve the stability and reliability of the equipment operation. The introduction of the cloud platform realizes the centralized management and analysis of multi-device data. Through data comparison and early warning mechanisms, it can discover equipment anomalies in advance, facilitate the operation and maintenance personnel to perform maintenance and processing in a timely manner, reduce the equipment failure rate, reduce the downtime, and improve the overall operation and maintenance efficiency and service life of the equipment.

[0081] such as Figure 6As shown, after the refrigeration equipment is started, the power supply module converts the external 220V mains power into low-voltage direct current. One part is supplied to the monitoring module, and the other part is boosted to thousands of volts by the high-voltage generation module and then connected to the electrode module 151 and the collector module 141 of the plasma generator 1. The needle-shaped electrode 1511 of the electrode module 151 ionizes the air under the action of high voltage to generate ions. The ions move towards the collector module 141 under the action of the electric field force, collide with neutral air molecules, and push the air molecules to form an air flow.

[0082] As Figure 7 shown, an embodiment of the present invention also provides a heat dissipation warning and control method based on the above refrigeration equipment, including the following steps: S10 - S30.

[0083] S10. Obtain monitoring data in real time.

[0084] Monitor the micro current value between the electrode and the collector through a current sensor (such as a Hall current sensor, integrated in the power supply module) to judge whether there is a risk of arcing (the current will increase abnormally during arcing); use an infrared sensor to detect the surface reflectivity of the electrode to evaluate the degree of dust accumulation (dust accumulation will cause the reflectivity to decrease); measure the electrode thickness through an ultrasonic sensor to judge the electrode loss condition (loss will cause the thickness to decrease); collect electrode temperature data through a thermistor (such as an NTC thermistor) or through a thermal imaging camera.

[0085] Use a hot-wire anemometer to monitor the air flow velocity and air volume in real time; obtain ambient temperature and humidity data through a temperature and humidity sensor to judge whether the insulation performance decreases due to moisture or the heat dissipation load increases due to high temperature.

[0086] Obtain the refrigeration load signal (such as condenser temperature, compressor working status, etc.) from the main controller of the equipment body, and dynamically adjust the operating parameters of the power supply module and the plasma generator 1 in combination with the heat dissipation requirements.

[0087] The sensor collects data at a frequency of 10 - 20 times per second (which can be adjusted according to the sensitivity of parameter changes), and transmits it to the controller (such as an ARM chip main control board) in real time through the RS - 485 bus or CAN bus. The controller preprocesses the original data such as filtering and normalization to form an effective monitoring data set, and performs first-order or second-order integration to confirm the change rate and trend of each parameter.

[0088] S20. Compare the real-time monitoring data of a single device with the set threshold, and compare the real-time monitoring data of different devices with the data change trend, and the discrete degree of the historical operation data and the data change trend, to judge whether the refrigeration equipment has abnormal conditions.

[0089] S30. If it is determined according to the monitoring data and the data change trend that the refrigeration equipment has an abnormal condition or it is predicted that an abnormal condition will occur, then the operating state of the plasma generator is controlled and adjusted.

[0090] For steps S20 and S30, specifically, the abnormal conditions can be divided into multiple levels as follows:

[0091] Level 1 risk (immediate shutdown required):

[0092] Judgment conditions: Arcing between electrodes (current suddenly increases to more than 100 mA), electrode temperature exceeds 120 °C (preset safety threshold), and the insulation protection part 161 is damaged, resulting in a risk of electric shock to personnel.

[0093] Control measures: The controller immediately cuts off the power supply of the high-voltage generation module, reduces the voltage between the electrode module 151 and the collector module 141 to 0 V, simultaneously disconnects the main power circuit through the relay, sends a shutdown signal to the equipment main controller, and uploads an emergency alarm (such as "electrode arcing, shutdown") to the cloud platform through the 4G module.

[0094] Level 2 risk (dynamic adjustment of parameters):

[0095] Judgment conditions: Wind speed is lower than 80% of the design value (for example, the preset wind speed is 5 m / s, and the measured value drops to 4 m / s), the degree of electrode dust accumulation exceeds 30% (calculated by comparing the reflectivity with historical data), and the environmental humidity > 85% (which may cause creepage).

[0096] Control measures: Insufficient wind speed or increased environmental humidity: The distance between the electrodes and the collector is reduced from 10 mm to 8 mm through the spacing adjustment component 18 (such as an electric push rod) (it is necessary to combine the voltage threshold to avoid arcing), or the output voltage of the high-voltage module is increased from 3 kV to 4 kV, or the duty cycle is increased by 2% to improve the ionization efficiency. Electrode dust accumulation: Start the automatic cleaning program, apply a high-frequency alternating current signal (such as 10 kHz, 500 V) to the electrode module 151 through the controller, and use the ion wind generated by corona discharge to blow the dust on the electrode surface. After 5 - 10 minutes, re-detect the reflectivity.

[0097] Level 3 risk (preventive maintenance reminder):

[0098] Judgment conditions: The discrete trend of the monitoring data exceeds 10%, the electrode thickness loss reaches 20% of the initial value (for example, the initial thickness is 1 mm, and the measured value drops to 0.8 mm), and the cumulative operating time of the plasma generator 1 reaches 5000 hours (it is necessary to replace the vulnerable parts).

[0099] Control measures: The controller pushes maintenance work orders to the operation and maintenance personnel through the cloud platform. The content includes "The system operation parameters deviate, it is recommended to perform operation and maintenance within 3 days", "The electrode loss exceeds the standard, it is recommended to replace within 3 days", or "The equipment has run overtime, it is necessary to check the insulation components". The operation and maintenance personnel can view the specific loss data through the mobile APP and remotely confirm the maintenance plan.

[0100] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A plasma generator, characterized in that, It includes an insulating bracket, an electromagnetic shielding member and an ionization unit provided on the insulating bracket. The electromagnetic shielding member and the insulating bracket are combined to form an electromagnetic shielding cavity. The ionization unit is provided in the electromagnetic shielding cavity. The ionization unit includes at least one set of collecting electrode modules and electrode modules arranged at intervals relatively. The collecting electrode modules and the electrode modules cooperate to ionize air and generate a flowing air current.

2. The plasma generator according to claim 1, characterized in that, The insulating bracket includes a main frame body, a first outer frame body and a first inner frame body. The first outer frame body is provided on the outer side of the main frame body. The first inner frame body is provided on the inner side of the main frame body. The electromagnetic shielding members are provided on both the first outer frame body and the first inner frame body. The collecting electrode modules and the electrode modules are provided between the first outer frame body and the first inner frame body.

3. The plasma generator according to claim 2, characterized in that, The insulating bracket further includes a first mounting frame and a second mounting frame. The first mounting frame and the second mounting frame are provided between the main frame body and the first inner frame body, and the first mounting frame is arranged close to the main frame body. The collecting electrode modules are provided in the first mounting frame, and the electrode modules are provided in the second mounting frame.

4. A plasma generator according to claim 1, characterized in that, The electrode module includes an insulating substrate, and a plurality of needle-shaped electrodes are provided on the side of the insulating substrate close to the collecting electrode module. The collecting electrode module includes a collecting electrode substrate, and a plurality of metal meshes are provided on the collecting electrode substrate.

5. A plasma generator according to claim 1, characterized in that, It further includes a spacing adjusting assembly for adjusting the spacing between the collecting electrode module and the electrode module. The spacing adjusting assembly includes a driving member for driving one of the collecting electrode module and the electrode module to move towards or away from the other.

6. A plasma generator according to claim 2, characterized in that, It further includes an insulating protection member. The insulating bracket further includes a second outer frame body and a second inner frame body. The second outer frame body is located on the outer side of the first outer frame body. The second inner frame body is located on the inner side of the first inner frame body. The insulating protection members are provided on both the second outer frame body and the second inner frame body.

7. A refrigeration device, characterized in that, It includes a device main body and the plasma generator according to any one of claims 1-6. The plasma generator is provided in the gas flow ventilation duct between the air inlet and the air outlet of the device main body. The plasma generator makes the air in the gas flow ventilation duct flow from the air inlet of the device main body to the air outlet of the device main body.

8. A refrigeration device according to claim 7, characterized in that, An air inlet protective cover is provided at the air inlet of the device main body.

9. A refrigeration device according to claim 7, characterized in that, It further includes a monitoring assembly and a cloud platform. The monitoring assembly includes a sensor and a controller. The controller is connected to the sensor, a power supply module, the cloud platform and the main controller of the device main body. The sensor monitors the ionization unit, and the power supply module supplies power to the monitoring assembly and the plasma generator.

10. A heat dissipation warning and control method for a refrigeration device, characterized in that, It includes: Obtaining monitoring data in real time; Comparing the real-time monitoring data of a single device with a set threshold, comparing the real-time monitoring data of different devices with the data change trend, and comparing the discrete degree of the historical operation data with the data change trend to determine whether the refrigeration device has an abnormal condition; If it is judged that an abnormal situation has occurred or is predicted to occur in the refrigeration equipment based on the monitoring data and the data change trend, the operating state of the plasma generator is controlled and adjusted.

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