Plasma generator and refrigeration equipment

Abstract

The utility model discloses a plasma generator and refrigeration equipment, the plasma generator comprises an insulation support, and an electromagnetic shielding member and an ionization unit which are arranged on the insulation support, the electromagnetic shielding member 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 utility model, 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, thereby improving the use safety.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a plasma generator and refrigeration equipment. Background Technology

[0002] Currently, cooling equipment is widely used in systems such as data centers. Most existing cooling equipment uses bladed fans for external heat exchange. Each fan is large, making the internal layout of the cooling equipment difficult and the overall size hard to compress. Moreover, the upper limit of the wind speed is low, making it difficult to further improve the heat dissipation capacity of the cooling equipment. The rotational inertia is large, the speed adjustment time is long, and the rotational noise is loud, making it difficult to place near residential areas.

[0003] To address these technical challenges, plasma-based cooling equipment has emerged on the market. This type of equipment is characterized by its bladeless design, thus avoiding the drawbacks of traditional bladed fans. However, current plasma-based cooling equipment is prone to causing electromagnetic interference to surrounding electronic devices during operation, potentially leading to safety accidents. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a plasma generator and refrigeration equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] On one hand, this utility model provides a plasma generator, including an insulating support, an electromagnetic shield and an ionization unit disposed on the insulating support, the electromagnetic shield and the insulating support being combined to form an electromagnetic shield cavity, the ionization unit being disposed in the electromagnetic shield cavity, the ionization unit including at least one set of collecting electrode modules and electrode modules arranged at relatively intervals, the collecting electrode modules and the electrode modules cooperating to ionize air and generate a flowing airflow.

[0007] Furthermore, the insulating support includes a main frame, a first outer frame, and a first inner frame. The first outer frame is located on the outside of the main frame, and the first inner frame is located on the inside of the main frame. Both the first outer frame and the first inner frame are provided with the electromagnetic shielding component. The collecting electrode module and the electrode module are located between the first outer frame and the first inner frame.

[0008] Furthermore, the insulating bracket also includes a first mounting frame and a second mounting frame, which are disposed between the main frame and the first inner frame, with the first mounting frame being disposed close to the main frame. The collecting electrode module is disposed in the first mounting frame, and the electrode module is disposed in the second mounting frame.

[0009] Furthermore, the electrode module includes an insulating substrate, and the insulating substrate has a plurality of needle-shaped electrodes on the side near the collecting electrode module. The collecting electrode module includes a collecting electrode substrate, and the collecting electrode substrate has a plurality of metal grids.

[0010] Furthermore, it also includes a spacing adjustment component for adjusting the spacing between the collecting electrode module and the electrode module. The spacing adjustment component includes a driving member for driving one of the collecting electrode module and the electrode module to move in the opposite or opposite direction to the other.

[0011] Furthermore, it also includes an insulating protective element. 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. Both the second outer frame and the second inner frame are provided with the insulating protective element.

[0012] On the other hand, the present invention also provides a refrigeration device, including a device body and the aforementioned plasma generator. The plasma generator is disposed in a gas flow ventilation duct between the air inlet and the air outlet of the device body. The plasma generator causes the air in the gas flow ventilation duct to flow from the air inlet of the device body to the air outlet of the device body.

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

[0014] Furthermore, the main body of the equipment also includes a monitoring component and a cloud platform. The monitoring component includes sensors and a controller. The controller is connected to the sensors, the power supply module, the cloud platform, and the main controller of the main body of the equipment. The sensors monitor the ionization unit, and the power supply module supplies power to the monitoring component and the plasma generator.

[0015] The advantages of this invention compared to existing technologies are as follows: A plasma generator includes an insulating support, an electromagnetic shielding component and an ionization unit disposed on the insulating support. The electromagnetic shielding component and the insulating support are combined to form an electromagnetic shielding cavity. The ionization unit is disposed within the electromagnetic shielding cavity and includes at least one set of relatively spaced collecting electrode modules and electrode modules. The collecting electrode modules and electrode modules cooperate to ionize air and generate a flowing airflow. This invention utilizes the electromagnetic shielding cavity formed by the electromagnetic shielding component and the insulating support to effectively prevent electromagnetic interference to external equipment or components during the operation of the ionization unit, thereby improving safety during use.

[0016] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objectives, features and advantages of this utility model more obvious and easy to understand, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of a plasma generator provided for a specific embodiment of this utility model;

[0019] Figure 2 A schematic diagram of the structure of a refrigeration device provided in a specific embodiment of this utility model;

[0020] Figure 3 Disassembly of a refrigeration device provided in a specific embodiment of this utility model Figure 1 ;

[0021] Figure 4 Disassembly of a refrigeration device provided in a specific embodiment of this utility model Figure 2 ;

[0022] Figure 5 A schematic diagram of the combination of a collecting electrode module and an electrode module in a plasma generator provided for a specific embodiment of this utility model;

[0023] Figure 6 A system architecture diagram of a refrigeration device provided for a specific embodiment of this utility model;

[0024] Figure 7 A flowchart illustrating a heat dissipation method for a refrigeration device provided in a specific embodiment of this utility model.

[0025] Figure Labels

[0026] 1. Plasma generator; 11. Main frame; 12. First outer frame; 121. Electromagnetic shield; 13. First inner frame; 14. First mounting frame; 141. Collector electrode module; 15. Second mounting frame; 151. Electrode module; 1511. Needle electrode; 16. Second outer frame; 161. Insulation protection component; 17. Second inner frame; 18. Spacing adjustment assembly. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] In the description of this utility model, 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., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening 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 intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] like Figures 1 to 5 As shown, this utility model embodiment provides a plasma generator 1, including an insulating support, an electromagnetic shield 121 and an ionization unit disposed on the insulating support. The electromagnetic shield 121 and the insulating support are combined to form an electromagnetic shielding cavity. 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 relatively spaced apart. The collecting electrode modules 141 and electrode modules 151 cooperate to ionize air and generate a flowing airflow.

[0034] The insulating support, as a fundamental structural component of the plasma generator 1, serves to support and secure other components. Simultaneously, its insulating properties prevent current leakage, ensuring safe operation. Specifically, the insulating support can be made of plastic or other insulating materials, possessing excellent insulation performance and mechanical strength. Alumina ceramic can also be used as the material, as it similarly exhibits excellent insulation and high hardness.

[0035] The electromagnetic shielding component 121 can be a metal shielding cover, such as a copper, aluminum, or steel mesh. The ionization unit is located in the electromagnetic shielding cavity. During operation, the electromagnetic shielding cavity can effectively isolate the electromagnetic waves generated by the ionization unit, preventing them from causing electromagnetic interference to external equipment or components; at the same time, it can also resist the interference of external electromagnetic waves on the ionization unit, ensuring its stable operation.

[0036] It should be noted that since electromagnetic shielding only blocks electromagnetic interference, in order to allow air to pass through smoothly, electromagnetic shielding components must have at least air passage holes or air passages.

[0037] The electrode module 151 includes an insulating substrate, which can be made of materials such as glass fiber epoxy resin or alumina ceramic. A plurality of needle-shaped electrodes 1511 are provided on the side of the insulating substrate near the collector module 141. These needle-shaped electrodes 1511 can be made of stainless steel and plated with zinc or coated with Teflon to improve corrosion resistance and hydrophobicity. Other materials for the needle-shaped electrodes 1511 include tungsten, copper, and titanium alloys. The needle-shaped electrodes 1511 are connected by wires on the insulating base or by etched copper foil or metal grids to form a matrix of multiple needle-shaped electrodes 1511.

[0038] The collector module 141 includes a collector substrate with several metal meshes. The design of the metal mesh holes facilitates ion collection and gas flow. The collector substrate can be made of stainless steel. In addition to the metal mesh holes, the collector substrate can also employ a specially designed flat plate flow guiding structure.

[0039] When a high voltage is applied to the electrode module 151 and the collector module 141, the needle electrode 1511 ionizes 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 airflow.

[0040] This invention can effectively prevent electromagnetic interference, improve the safety and stability of plasma generator 1, reduce the impact on surrounding electronic equipment, and ensure the normal operation of the entire refrigeration system.

[0041] like Figure 4 As shown, the insulating support includes a main frame 11, a first outer frame 12, and a first inner frame 13. The first outer frame 12 is located on the outside of the main frame 11, and the first inner frame 13 is located 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 components 121. The collecting electrode module 141 and the electrode module 151 are located between the first outer frame 12 and the first inner frame 13.

[0042] The main frame 11 can be made of plastic or other insulating material through processes such as cutting and drilling. It is cut into a suitable rectangular frame shape, and holes are drilled 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 the actual load-bearing requirements.

[0043] The first outer frame 12 is located on the outside of the main frame 11, and its main function is to provide a carrier for mounting the electromagnetic shielding component 121, together with the main frame 11 and the first inner frame 13. The size of the first outer frame 12 is adapted to the main frame 11, and it can fit tightly against the outside of the main frame 11. During the manufacturing process, a groove can be made on the surface of the first outer frame 12 facing the main frame 11 for embedding the electromagnetic shielding component 121.

[0044] The first inner frame 13 is located inside the main frame 11, corresponding to the first outer frame 12, together enclosing the internal space. The structure and manufacturing process of the first inner frame 13 are similar to those of the first outer frame 12, also using plastic or other insulating materials. During installation, the first inner frame 13 is connected to the main frame 11 by bolts, the bolt spacing of which can be set according to the size of the frame to ensure the stability of the connection. Simultaneously, the first inner frame 13 also has a structure for installing the electromagnetic shielding component 121, which cooperates with the electromagnetic shielding component 121 on the first outer frame 12 to form a complete electromagnetic shielding layer.

[0045] When the ionization unit operates, it generates electromagnetic waves. Without shielding, these waves could interfere with surrounding electronic equipment, and external electromagnetic waves could also affect the normal operation of the ionization unit. The electromagnetic shielding cavity formed by the electromagnetic shielding components 121 on the first outer frame 12 and the first inner frame 13 effectively isolates these electromagnetic waves. According to the principle of electromagnetic shielding, when an electromagnetic wave encounters a metal shielding component, an induced current is generated on the metal surface. The reverse magnetic field generated by this induced current cancels out part of the incident electromagnetic wave, thus achieving a shielding effect.

[0046] like Figure 4 As shown, the insulating bracket also includes a first mounting frame 14 and a second mounting frame 15. The first mounting frame 14 and the second mounting frame 15 are located between the main frame 11 and the first inner frame 13, and the first mounting frame 14 is located close to the main frame 11. The collecting electrode module 141 is located in the first mounting frame 14, and the electrode module 151 is located in the second mounting frame 15.

[0047] The first mounting frame 14 and the second mounting frame 15 can be made of the same plastic or other insulating material as the main body of the insulating bracket, and formed by injection molding or cutting. During installation, the first mounting frame 14 and the second mounting frame 15 are positioned between the main frame 11 and the first inner frame 13. First, mounting grooves or mounting holes are pre-set on the main frame 11 and the first inner frame 13. Then, the first mounting frame 14 and the second mounting frame 15 are embedded into the mounting grooves or fixed by screws passing through the mounting holes. The installation method for 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.

[0048] The first mounting frame 14 is positioned close to the main frame 11, and its internal structure is designed according to the shape and size of the collecting electrode module 141. For example, if the collecting electrode module 141 is a rectangular flat plate structure, a rectangular groove matching the shape of the collecting electrode module 141 can be provided inside the first mounting frame 14. The depth of the groove is slightly greater than the thickness of the collecting electrode module 141, and rubber material is placed inside the groove so that the collecting electrode module 141 can be smoothly embedded and fixed, while also providing a shock absorption effect. After the collecting electrode module 141 is placed in the groove of the first mounting frame 14, it can be fixed by means of clips, screws, or glue.

[0049] The second mounting frame 15 is used to mount the electrode module 151, and its design also takes into account the structural characteristics of the electrode module 151. A rectangular groove matching the shape of the electrode module 151 can be provided inside the second mounting frame 15. The depth of the groove is slightly greater than the thickness of the electrode module 151, and rubber material is placed inside the groove to allow the electrode module 151 to be smoothly inserted and fixed, while also providing a shock-absorbing effect. After the electrode module 151 is placed in the groove of the second mounting frame 15, it can be fixed by means of clips, screws, or glue.

[0050] By setting up 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 achieved. This layered installation structure avoids mutual interference between the two modules during installation, improving installation efficiency and accuracy. Simultaneously, the independent mounting frames provide stable support for the collector module 141 and the electrode module 151, reducing displacement or loosening of the modules due to vibration or other factors during operation, ensuring the stability and reliability of the ionization unit. Furthermore, the mounting frames facilitate individual maintenance and replacement of the collector module 141 and the electrode module 151. When one module malfunctions, it is not necessary to disassemble the entire ionization unit; only the corresponding mounting frame needs to be removed for repair or replacement, reducing maintenance costs and difficulty.

[0051] It should be noted that multiple sets of electrode modules 151 and collector modules 141 can be designed in the same plasma generator 1, and multi-stage ionization can be achieved by superposition, which can effectively increase the wind speed without increasing the electrode voltage.

[0052] It should also be noted that the multiple sets of electrode modules 151 and collector modules 141 can be fabricated in the form of a segmented array, i.e., as shown in the figure. Figure 5 As shown, this design facilitates low-cost replacement and maintenance in case of single-point failure, and also ensures that damage to some electrode modules 151 and collector modules 141 does not affect the normal operation of others.

[0053] like Figure 4As shown, the plasma generator 1 also includes a spacing adjustment component 18, which is used to adjust the spacing between the collector module 141 and the electrode module 151. The spacing adjustment component 18 includes a driving member, which is used to drive one of the collector module 141 and the electrode module 151 to move in the opposite or opposite direction to the other.

[0054] The driving component can be a motor, hydraulic cylinder, or pneumatic cylinder, etc. The transmission method can be screw and sleeve drive, gear and rack drive, or synchronous belt drive.

[0055] Taking the combination of a motor, a screw, and a screw sleeve 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 screw sleeve is fixed on the collecting electrode 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 screw sleeve.

[0056] When it is necessary to adjust the distance between the collecting electrode module 141 and the electrode module 151, a corresponding electrical signal is sent to the motor to drive it to rotate. The motor converts its rotational motion into the linear motion of the screw sleeve via a screw rod. The screw sleeve moves forward or backward, causing the collecting electrode module 141 on the first mounting frame 14 connected to it to move closer to or further away from the electrode module 151, thereby changing the distance between them.

[0057] The spacing adjustment component 18 allows the plasma generator 1 to flexibly adjust the spacing between the collector module 141 and the electrode module 151 according to actual operating requirements. Under different refrigeration equipment loads, 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 airflow requirements. For example, when the refrigeration equipment is operating at a low load, the voltage between the collector module 141 and the electrode module 151 can be reduced, and the spacing between them can be appropriately decreased to reduce power consumption; while under high load operation, the voltage between the collector module 141 and the electrode module 151 can be increased, while controlling the spacing between them to be slightly larger than the electrical clearance required under the current voltage, thereby enhancing heat dissipation while keeping power consumption to a minimum.

[0058] like Figure 4 As shown, the plasma generator 1 also includes an insulating protective element 161, and the insulating support also 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. Both the second outer frame 16 and the second inner frame 17 are provided with insulating protective elements 161.

[0059] The insulating protective component 161 can be made of plastic material with a mesh structure, which has good insulation properties and strength. The mesh structure design ensures ventilation and heat dissipation while preventing personnel from directly contacting internal high-voltage components and preventing foreign objects such as insects from entering the equipment. For example, the mesh diameter of the insulating protective component 161 can be set as needed according to the application scenario, so as to block fingers or metal wires from entering without affecting airflow. Similarly, the structural design of the second outer frame 16 and the second inner frame 17 is consistent.

[0060] When installing the insulating protective component 161, for the second outer frame 16 and the second inner frame 17 with a slot structure, first align the edge of the insulating protective component 161 with the slot, then gently press it to embed the insulating protective component 161 into the slot. To further enhance the stability of the installation, a small amount of insulating sealant can be applied to the contact area between the insulating protective component 161 and the slot to prevent the insulating protective component 161 from loosening or shifting. Alternatively, mounting holes can be used, in which case insulating screws can be used to fix the insulating protective component 161 to the frame.

[0061] The second outer frame 16, the second inner frame 17, and the insulating protective component 161 form a multi-layered insulating protective barrier. Firstly, this effectively prevents operators from accidentally contacting the high-voltage components inside the plasma generator 1, greatly reducing the risk of electric shock and ensuring personnel safety. Secondly, it blocks insects and other foreign objects from entering the equipment, avoiding short circuits, component damage, and other malfunctions caused by foreign objects, thus improving the reliability and stability of the plasma generator 1's operation.

[0062] like Figures 1 to 6 As shown, this utility model embodiment also provides a refrigeration device, including a device body and the aforementioned plasma generator 1. The plasma generator 1 is disposed in the gas flow ventilation duct between the air inlet and the air outlet of the device body. The plasma generator 1 causes the air in the gas flow ventilation duct to flow from the air inlet of the device body to the air outlet of the device body.

[0063] Refrigeration equipment can be categorized into common types such as liquid chillers and air conditioners, each containing core refrigeration components like compressors and condensers. Taking an air conditioner as an example, the main body typically consists of a casing, internal refrigeration circulation piping, and an electrical control system. The plasma generator 1 is installed in the gas flow ventilation duct between the air inlet and outlet of the main body of the equipment; the specific installation location needs to be planned according to the internal spatial structure of the main body of the equipment.

[0064] During actual installation, an installation interface must first be reserved at the corresponding air duct location on the main casing of the equipment. The shape of the interface should match the shape of the plasma generator 1, such as a rectangular interface matching a rectangular plasma generator 1. Taking a split-type air conditioner outdoor unit as an example, a rectangular opening of the same size as the plasma generator 1 is made on the side of the outdoor unit casing. A mounting flange is set at the edge of the opening, and the insulating bracket of the plasma generator 1 is fixedly connected to the mounting flange with bolts to ensure a firm installation and good sealing. At the same time, to reduce the impact of vibration generated by the plasma generator 1 during operation on the main body of the equipment, a rubber shock-absorbing pad can be installed between the insulating bracket and the mounting flange to buffer and reduce vibration.

[0065] Applying a plasma generator 1 to the gas flow ventilation duct of refrigeration equipment offers several significant advantages compared to traditional bladed fans. First, the plasma generator 1 has no rotating parts, resulting in a smaller size and effectively optimizing the internal space layout of the refrigeration equipment, making the overall device more compact and easier to install and transport. Second, by stacking layers and increasing voltage, the plasma generator 1 can generate airflow with a higher upper speed limit, quickly removing heat from the condenser and significantly improving the refrigeration equipment's heat dissipation capacity, ensuring stable operation under high load conditions. Third, due to the absence of rotational inertia, the plasma generator 1 has a rapid speed adjustment response, instantly adjusting the fan speed according to the real-time heat dissipation needs of the refrigeration equipment, significantly reducing adjustment time compared to traditional fans. Furthermore, the plasma generator 1 operates without rotating parts causing friction, resulting in extremely low noise, making the refrigeration equipment suitable for locations with strict noise requirements, such as residential areas.

[0066] It should be noted that the plasma generator 1 is not limited to being installed in the gas flow ventilation duct between the air inlet and outlet of the main body of the equipment. It can also be installed at the corner of the gas flow ventilation duct or on a branch duct, depending on the internal structural characteristics of the main body of the equipment.

[0067] It's important to understand that, while retaining plasma generator 1, it can be used in conjunction with a traditional cooling fan. When the refrigeration equipment is operating at low load, only plasma generator 1 is activated for cooling; when the equipment is operating at high load, plasma generator 1 and the cooling fan work together to further enhance the cooling effect. For example, in industrial chillers operating in high-temperature environments, plasma generator 1 and the cooling fan can be activated simultaneously during the hottest summer months to ensure stable cooling of the chiller.

[0068] like Figure 3 As shown, the main body of the equipment has an air inlet protective cover at the air inlet. Its main purpose is to protect the air inlet of the refrigeration equipment, preventing external debris from entering the equipment and affecting its long-term stable operation. In terms of structural design, the air inlet protective cover can adopt a metal mesh grille structure, such as a stainless steel mesh grille, and a dust cover can be selected according to the usage environment. The mesh size of the grille needs to be designed according to the actual usage environment.

[0069] It should be noted that in rainy areas, a rain cover can be installed above the air intake shield. The rain cover can be made of curved plastic or metal sheet and fixed above the air intake shield using a bracket. The length and width of the rain cover must be greater than the air intake shield to ensure complete rain protection. The bracket can be made of stainless steel and fixed to the rain cover and the equipment body by welding or bolting. For outdoor refrigeration equipment in southern coastal areas, installing a rain cover can effectively prevent rainwater from directly entering the air intake, preventing corrosion and other damage caused by rainwater.

[0070] like Figure 6 As shown, the main body of the equipment also includes a monitoring component and a cloud platform. The monitoring component includes sensors and a controller. The controller is connected to the sensors, the power supply module, the cloud platform, and the main controller of the main body of the equipment. The sensors monitor the ionization unit, and the power supply module supplies power to the monitoring component and the plasma generator.

[0071] Sensors, as the sensing units of the monitoring components, are used to collect key data on the operation of the ionization unit and equipment in real time. Various types of sensors can be deployed for the ionization unit, including current sensors, voltage sensors, infrared sensors, ultrasonic sensors, thermal imaging cameras, wind speed sensors, temperature sensors, humidity sensors, and thermistors.

[0072] Current and voltage sensors are typically integrated into the power supply module of the main body of the device to monitor the current and voltage parameters of the electrode module 151 and the collector module 141 during operation. For example, a Hall current sensor or a shunt can be used, encapsulated inside the power supply module and connected to the controller of the main body of the device via a signal line. This allows for accurate detection of the current magnitude in the circuit and transmission of the data to the controller of the main body of the device.

[0073] Infrared sensors, ultrasonic sensors, thermal imaging cameras, wind speed sensors, temperature sensors, and humidity sensors are mounted on an insulating bracket. Thermistors are directly mounted on the electrodes to monitor electrode temperature. If an NTC (negative temperature coefficient) thermistor is used, its resistance decreases as temperature increases; by measuring the change in resistance, electrode temperature information can be accurately obtained.

[0074] The controller consists of an MCU (Microcontroller Unit) and its control circuitry, communicating with the main controller of the device. The MCU, as the core control component, such as an ARM series microprocessor, possesses powerful data processing and control capabilities. The controller connects to various sensors via data lines to receive data collected by the sensors; simultaneously, it connects to the cloud platform, power supply module, and the main controller of the device via communication lines and wireless communication modules. For example, it interacts with the cloud platform via a 4G module and communicates with the power supply module and the main controller of the device via CAN or 485 bus, enabling rapid data transmission and accurate command reception.

[0075] During operation, sensors continuously collect data. For example, current sensors monitor the current between electrodes to determine if arcing is occurring; infrared sensors detect the reflectivity of the electrode surface to assess electrode dust accumulation. This data is transmitted to the controller in real time. The controller analyzes and processes the received data. For instance, if the controller receives abnormal current sensor data and determines that arcing may be occurring between the electrodes, it immediately takes control measures, such as controlling the power supply module to reduce the voltage between the electrodes and the collector, and simultaneously uploading alarm information to the main controller of the equipment and the cloud platform via the communication line. In addition, during normal system operation, after receiving data uploaded by the refrigeration equipment, the cloud platform compares and analyzes the dispersion of this data with real-time operating data and trends, as well as historical operating data and trends, from other refrigeration equipment. For example, using big data analytics algorithms, cluster analysis is performed on the operating data and trends of the same model of refrigeration equipment under the same conditions for the same duration. If the data or trend of a particular device deviates significantly from the data of other systems, the cloud platform will issue an early warning, generating an alert and sending it to maintenance personnel, prompting them to check and confirm the risk.

[0076] The monitoring components utilize multiple sensors to monitor the ionization unit and equipment operating status in real time. This effectively monitors risks such as electrode arcing, electrode dust accumulation, electrode wear, and electrode overheating, promptly identifying potential faults and preventing escalation of equipment failures. Based on sensor feedback data and the requirements of the main controller in the equipment, the controller adjusts the plasma generator 1 in real time via the power supply module. This includes adjusting parameters such as the power supply to the electrodes and collector, voltage level, voltage direction, voltage duty cycle, and the distance between the electrodes and collector. This ensures effective heat dissipation under various operating conditions, improving the stability and reliability of the equipment. The introduction of a cloud platform enables centralized management and analysis of data from multiple devices. Through data comparison and early warning mechanisms, equipment anomalies can be detected early, facilitating timely maintenance and repair by operations and maintenance personnel, reducing equipment failure rates, minimizing downtime, and improving overall equipment maintenance efficiency and lifespan.

[0077] like Figure 6As shown, when the refrigeration equipment starts, the power supply module converts the external 220V AC mains power into low-voltage DC power. Part of this power supplies the monitoring module, while the other part is boosted to several kilovolts by the high-voltage generation module and then connected to the electrode module 151 and the collector module 141 of the plasma generator 1. Under the action of high voltage, the needle-shaped electrode 1511 of the electrode module 151 ionizes the air to generate ions. Under the action of electric field force, the ions move towards the collector module 141, collide with neutral air molecules, and push the air molecules to form an airflow.

[0078] like Figure 7 As shown, this utility model embodiment also provides a heat dissipation warning and control method based on the above-mentioned refrigeration equipment, including the following steps: S10-S30.

[0079] S10. Acquire monitoring data in real time.

[0080] The micro-current value between the electrode and the collector is monitored by a current sensor (such as a Hall current sensor integrated into the power supply module) to determine whether there is a risk of arcing (the current will increase abnormally when arcing occurs); the reflectivity of the electrode surface is detected by an infrared sensor to assess the degree of dust accumulation (dust accumulation will reduce reflectivity); the electrode thickness is measured by an ultrasonic sensor to determine the electrode wear (wear will reduce the thickness); and the electrode temperature data is collected by a thermistor (such as an NTC thermistor) or a thermal imaging camera.

[0081] A hot-wire anemometer is used to monitor airflow speed and volume in real time; ambient temperature and humidity data are obtained through a temperature and humidity sensor to determine whether the insulation performance is reduced due to humidity or the heat dissipation load is increased due to high temperature.

[0082] The main controller of the equipment obtains cooling load signals (such as condenser temperature, compressor operating status, etc.) and dynamically adjusts the operating parameters of the power supply module and plasma generator 1 in combination with heat dissipation requirements.

[0083] 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 the ARM chip main control board) in real time via RS-485 bus or CAN bus. The controller performs preprocessing such as filtering and normalization on the raw data to form an effective monitoring dataset, and performs first-order or second-order integration to confirm the rate of change and trend of each parameter.

[0084] S20. Based on the comparison of real-time monitoring data of a single device with the set threshold, and the comparison of the dispersion of real-time monitoring data and data change trends of different devices, and historical operating data and data change trends, determine whether the refrigeration equipment has an abnormal situation.

[0085] S30. If, based on monitoring data and data change trends, it is determined that an abnormal situation has occurred or is predicted to occur in the refrigeration equipment, then the operating status of the plasma generator shall be controlled and adjusted.

[0086] For steps S20 and S30, specifically, abnormal situations can be divided into multiple levels, as follows:

[0087] Level 1 risk (immediate shutdown required):

[0088] Judgment criteria: arcing between electrodes (current suddenly increases to over 100mA), electrode temperature exceeds 120℃ (preset safety threshold), and damage to insulation protection component 161 leads to the risk of electric shock to personnel.

[0089] Control measures: The controller immediately cuts off the power supply to the high voltage generation module, reduces the voltage between the electrode module 151 and the collector module 141 to 0V, disconnects the main power supply circuit through the relay, sends a shutdown signal to the main controller of the equipment, and uploads an emergency alarm (such as "electrode arcing, shutdown") to the cloud platform through the 4G module.

[0090] Level 2 risk (dynamic adjustment parameter):

[0091] Judgment criteria: wind speed is lower than 80% of the design value (e.g., the preset wind speed is 5m / s, but the actual measured wind speed drops to 4m / s), the degree of dust accumulation on the electrodes exceeds 30% (calculated by comparing reflectivity with historical data), and the ambient humidity is >85% (which may cause creepage).

[0092] Control measures: Insufficient wind speed or increased ambient humidity: Reduce the distance between the electrode and the collecting electrode from 10mm to 8mm using the spacing adjustment component 18 (such as an electric push rod) (this must be combined with the voltage threshold to avoid arcing), or increase the output voltage of the high-voltage module from 3kV to 4kV, or increase the duty cycle by 2% to improve ionization efficiency. Electrode dust accumulation: Activate the automatic cleaning program, apply a high-frequency AC signal (such as 10kHz, 500V) to the electrode module 151 through the controller, and use the ion wind generated by corona discharge to blow away the dust on the electrode surface. After 5-10 minutes, re-detect the reflectivity.

[0093] Level 3 Risk (Preventative Maintenance Tip):

[0094] Judgment criteria: The dispersion trend of monitoring data exceeds 10%, the electrode thickness loss reaches 20% of the initial value (e.g., the initial thickness is 1 mm, and the actual measured thickness drops to 0.8 mm), and the cumulative operating time of plasma generator 1 reaches 5000 hours (requiring replacement of vulnerable parts).

[0095] Control measures: The controller pushes maintenance work orders to maintenance personnel via the cloud platform. These orders may include messages such as "System operating parameters deviate; maintenance is recommended within 3 days," "Electrode wear exceeds limits; replacement is recommended within 3 days," or "Equipment operation timeout; insulation components need to be checked." Maintenance personnel can view specific wear data and remotely confirm maintenance plans via a mobile app.

[0096] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A plasma generator, characterized in that, The device includes an insulating support, an electromagnetic shielding component and an ionization unit disposed on the insulating support, wherein the electromagnetic shielding component and the insulating support 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 and electrode modules arranged at relatively intervals, wherein the collecting electrode modules and the electrode modules cooperate to ionize air and generate a flowing airflow.

2. A plasma generator according to claim 1, characterized in that, The insulating support includes a main frame, a first outer frame, and a first inner frame. The first outer frame is located on the outside of the main frame, and the first inner frame is located on the inside of the main frame. Both the first outer frame and the first inner frame are provided with the electromagnetic shielding component. The collecting electrode module and the electrode module are located between the first outer frame and the first inner frame.

3. A plasma generator according to claim 2, characterized in that, The insulating support also includes a first mounting frame and a second mounting frame, which are located between the main frame and the first inner frame, with the first mounting frame positioned close to the main frame. The collecting electrode module is located in the first mounting frame, and the electrode module is located in the second mounting frame.

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

5. A plasma generator according to claim 1, characterized in that, It also includes a spacing adjustment component, which is used to adjust the spacing between the collecting electrode module and the electrode module. The spacing adjustment component includes a driving member, which is used to drive one of the collecting electrode module and the electrode module to move in the opposite or opposite direction to the other.

6. A plasma generator according to claim 2, characterized in that, It also includes an insulating protective component. 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. Both the second outer frame and the second inner frame are provided with the insulating protective component.

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

8. A refrigeration device according to claim 7, characterized in that, The air inlet of the main body of the equipment is equipped with an air inlet protective cover.

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

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