Condenser heat dissipation device, refrigeration equipment and work control method

Abstract

The invention discloses a condenser heat dissipation device, refrigeration equipment and a working control method.The condenser heat dissipation device comprises an electrode module, a condensation module and a power module, the electrode module and the condensation module are arranged in a spaced mode, the electrode module and the condensation module are matched to ionize air and generate flowing airflow, and the electrode module comprises an insulating substrate; a plurality of needle-shaped electrodes facing the condensation module are arranged on the side, close to the condensation module, of the insulation substrate, the condensation module is provided with a collecting electrode, the negative electrode of the electrode module is connected with the needle-shaped electrodes, and the positive electrode of the electrode module is connected with the collecting electrode. Through cooperation of the electrode module and the condensation module, the direct contact efficiency of cold air and the heat dissipation surface can be remarkably improved, the convective heat exchange effect is greatly enhanced, and the problems that under the high-load working condition, the temperature of the condenser is too high, and refrigerant condensation is insufficient are effectively solved; and meanwhile, the heat dissipation wind speed is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to a condenser heat dissipation device, a refrigeration equipment and a working control method. BACKGROUND

[0002] In the operation process of refrigeration equipment (such as refrigerators, air conditioners, commercial refrigeration units, etc.), the condenser as a core heat exchange component, its heat dissipation efficiency directly determines the refrigeration performance, energy consumption level and operation stability of the equipment. At present, the traditional heat dissipation structure of the condenser is generally adopted in the industry, that is, the air flow is driven by the fan, so that the cold air contacts the surface of the condenser and carries away the heat, so as to realize the condensation phase change of the refrigerant. However, the traditional heat dissipation structure has significant technical defects in actual application, which are embodied in the following two aspects:

[0003] On the one hand, the static air layer (boundary layer) leads to low convective heat transfer efficiency. Because the air molecules have viscosity, a layer of relatively static static air layer (laminar boundary layer) will be naturally formed on the outer surface of the condenser condensing pipeline and the surface of the heat dissipation fin. The thermal conductivity of the boundary layer is much lower than that of the flowing air, which is equivalent to forming a "thermal resistance barrier" on the surface of the condenser. Even if the fan continuously transports external cold air, most of the cold air is difficult to directly contact the surface of the condenser, and only exchanges heat with the air outside the boundary layer, resulting in that the heat cannot be quickly and efficiently transferred from the condenser to the air flow, and finally the convective heat transfer efficiency is greatly reduced.

[0004] On the other hand, the laminar boundary layer separation generates vortex flow, increases the flow resistance and reduces the heat dissipation wind speed. In the traditional heat dissipation structure, when the air flow driven by the fan flows through the gap between the condenser heat dissipation fins, the laminar boundary layer is prone to "laminar separation" phenomenon during the flow process along the surface of the fin: when the air flow flows through a certain position of the fin, the kinetic energy of the air in the boundary layer is insufficient to resist the adverse pressure gradient of the main flow, causing the boundary layer to separate from the surface of the fin, and forming a large range of vortex flow area behind the fin. These vortex flows not only disturb the flow path of the main flow, but also significantly increase the overall flow resistance, and the increase of the flow resistance directly leads to the reduction of the effective wind speed actually output by the fan.

[0005] To improve the above problems, the prior art is optimized by increasing the fan power, increasing the number of heat dissipation fins or reducing the fin spacing, but such solutions have obvious limitations: increasing the fan power will directly lead to the rise of equipment energy consumption, which is contrary to the current industry development trend of energy saving; increasing the number of fins or reducing the spacing will further increase the airflow flow resistance, and is easy to cause dust accumulation between fins, and the heat dissipation efficiency will be continuously degraded after long-term use. Therefore, how to break through the double constraints of boundary layer and flow resistance in the traditional heat dissipation structure, and improve the heat dissipation efficiency of the condenser from the root without significantly increasing the energy consumption and structural complexity, has become a technical problem to be solved in the field of heat dissipation of refrigeration equipment. SUMMARY

[0006] The purpose of the present application is to overcome the shortcomings of the prior art and provide a condenser heat dissipation device, a refrigeration equipment and a working control method.

[0007] To achieve the above purpose, the present application adopts the following technical solutions:

[0008] In a first aspect, the present application provides a condenser heat dissipation device, comprising an electrode module, a condensing module and a power supply module, the electrode module and the condensing module are arranged at intervals, the electrode module cooperates with the condensing module to ionize air and generate flowing air flow, the electrode module comprises an insulating substrate, one side of the insulating substrate close to the condensing module is provided with a plurality of needle-shaped electrodes facing the condensing module, the condensing module is provided with a collector, the negative electrode of the electrode module is connected with the needle-shaped electrode, and the positive electrode of the electrode module is connected with the collector.

[0009] Further, the condensing module comprises a condensing pipeline, a plurality of interval arranged heat dissipation fins and a heat conducting insulating piece, the condensing pipeline circulates refrigerant, the condensing pipeline is arranged on the heat dissipation fins, the heat conducting insulating piece is arranged between the condensing pipeline and the heat dissipation fins, and the heat dissipation fins constitute the collector of the condensing module.

[0010] Further, the condensing module further comprises an equipotential bonding sheet, and the equipotential bonding sheet is connected with all the heat dissipation fins in the condensing module.

[0011] Further, the condensing module comprises a condensing pipeline, a plurality of interval arranged heat dissipation fins and a metal grid, the condensing pipeline circulates refrigerant, the condensing pipeline is arranged on the heat dissipation fins, the metal grid is arranged in the interval space of the heat dissipation fins, and the metal grid constitutes the collector of the condensing module.

[0012] Further, the cross section of the load sheet of the metal grid is arranged at an angle with the cross section of the heat dissipation fin.

[0013] Further, the condensing module comprises a condensing pipeline, a plurality of heat dissipation fins arranged at intervals, and a support frame, the condensing pipeline is filled with refrigerant, the condensing pipeline is arranged on the heat dissipation fins, and the collecting electrode is arranged on the support frame.

[0014] Further, the collecting electrode is arranged at intervals between the insulating substrate and the heat dissipation fins, or the collecting electrode is arranged at intervals on the side of the heat dissipation fins away from the insulating substrate.

[0015] Further, the support frame is made of insulating material.

[0016] In the second aspect, the application further provides a refrigeration equipment comprising a fan and the condenser heat dissipation device.

[0017] In the third aspect, the application further provides a working control method of the refrigeration equipment, comprising:

[0018] When the refrigeration equipment is working, the rotating speed of the fan is detected;

[0019] When the real-time rotating speed of the fan is greater than the preset percentage threshold of the rated maximum rotating speed, the condenser heat dissipation device is started while the fan is kept working;

[0020] When the real-time rotating speed of the fan is less than or equal to the preset percentage threshold of the rated maximum rotating speed, the condenser heat dissipation device is stopped while the fan is kept working.

[0021] Compared with the prior art, the application has the beneficial effects that: a condenser heat dissipation device comprises an electrode module, a condensing module, and a power module, the electrode module and the condensing module are arranged at intervals, the electrode module and the condensing module cooperate to ionize air and generate flowing air flow, the electrode module comprises an insulating substrate, a plurality of needle-shaped electrodes are arranged on the side of the insulating substrate close to the condensing module, the condensing module is provided with a collecting electrode, the negative electrode of the electrode module is connected with the needle-shaped electrodes, and the positive electrode of the electrode module is connected with the collecting electrode. Through the cooperation of the electrode module and the condensing module, the micro-jet flow formed by the array of needle-shaped electrodes can generate extremely strong turbulent flow and shear force, can directly tear the static air layer on the surface of the condenser heat dissipation device and be sucked into the main flow air flow, can break the boundary layer thermal resistance from the root, can significantly improve the direct contact efficiency of cold air and the surface of the heat dissipation device, can greatly enhance the convective heat transfer effect, and can effectively avoid the problems of excessively high condenser temperature and insufficient refrigerant condensation under high load working conditions. At the same time, the laminar boundary layer can be converted into a turbulent boundary layer by the ion wind disturbance, the turbulent boundary layer can resist the adverse pressure gradient with stronger kinetic energy, can delay flow separation, can significantly reduce the pressure difference resistance which accounts for a high proportion in the total flow resistance, and can further improve the heat dissipation air speed.

[0022] The above description is only a summary of the technical solutions of the present application. In order to make the technical solutions of the present application clearer, the content of the specification can be implemented, and in order to make the above and other purpose features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0024] Figure 1 An exploded view of a condenser heat dissipation device provided for the first embodiment of the present application;

[0025] Figure 2 An exploded view of a condenser heat dissipation device provided for the second embodiment of the present application;

[0026] Figure 3 An exploded view of a condenser heat dissipation device provided for the third embodiment of the present application;

[0027] Figure 4 An exploded view of a condenser heat dissipation device provided for the fourth embodiment of the present application.

[0028] REFERENCE NUMERALS

[0029] 1, electrode module; 11, insulating substrate; 111, needle electrode; 2, condenser module; 21, condenser pipeline; 22, heat dissipation fin; 23, equipotential connecting sheet; 24, metal grid; 241, load sheet; 25, support frame; 3, fan; 100, collecting electrode. DETAILED DESCRIPTION

[0030] The technical solutions of the present application will be described in detail below in combination with specific embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] In the description of the application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the application.

[0032] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0033] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be 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 "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is less than that of the second feature.

[0035] It is to be understood that when an element as a preamble is referred to as being "on" or "connected" to another element, it can be directly on or connected to the other element or intervening elements can also be present. In contrast, when an element as a preamble is referred to as being "connected" to another element, it can be directly on or connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar terms as used herein are used for the purpose of illustration only and are not intended to be limiting.

[0036] As shown in Figures 1 to 4 The condenser heat dissipation device provided by the embodiment of the present application comprises an electrode module 1, a condenser module 2 and a power module. The electrode module 1 and the condenser module 2 are arranged at intervals. The electrode module 1 cooperates with the condenser module 2 to ionize air and generate a flowing air current. The electrode module 1 comprises an insulating substrate 11. A side of the insulating substrate 11 close to the condenser module 2 is provided with a plurality of needle-shaped electrodes 111 facing the condenser module 2. The condenser module 2 is provided with a collecting electrode. A negative electrode of the electrode module 1 is connected with the needle-shaped electrodes 111, and a positive electrode of the electrode module 1 is connected with the collecting electrode.

[0037] It is to be understood that in some embodiments, the needle-shaped electrodes 111 can also be replaced by linear electrodes or other electrode forms.

[0038] Specifically, the electrode module 1 and the condenser module 2 are arranged at intervals along the air current flowing direction inside the refrigeration equipment (from the air inlet to the air outlet of the refrigeration equipment). The interval needs to meet the requirements that an effective electric field can be formed between the two modules to ionize air, and the interval is not too small to cause accidental discharge short circuit between the electrode and the collecting electrode. The electrode module 1 and the condenser module 2 work cooperatively under the action of the high-voltage electric field provided by the power module, and form a directional flowing air current (i.e. ion wind) by ionizing air. The air current directly acts on the heat dissipation surface of the condenser module 2 to break the boundary layer, reduce the flow resistance and strengthen the heat exchange effect.

[0039] The electrode module 1 comprises an insulating substrate 11 and a plurality of needle-shaped electrodes 111. The insulating substrate 11 is made of a material with excellent insulation performance, mechanical strength and temperature resistance (such as a glass fiber epoxy resin plate, an aluminum oxide ceramic plate, etc.), and its size is matched with the size of the heat dissipation area of the condensation module 2 to ensure that the ion wind formed by the needle-shaped electrodes 111 can completely cover the effective heat dissipation surface of the condensation module 2. A plurality of mounting holes arranged in a matrix are formed on the side surface (i.e. the working surface) of the insulating substrate 11 close to the condensation module 2. Each mounting hole is fixed with a needle-shaped electrode 111. The axis of all needle-shaped electrodes 111 is perpendicular to the working surface of the insulating substrate 11 and the end of the needle-shaped electrode 111 close to the condensation module 2 is provided with a sharp end structure. The sharp end structure can form a strong electric field at the end of the electrode to ensure that air ionization can be achieved at a reasonable high voltage. The needle-shaped electrodes 111 can be made of stainless steel coated with Teflon or coated with zinc, copper, tungsten, titanium alloy, platinum-iridium alloy, and diamond. In some scenarios, an anti-corrosion and water-repellent coating (such as TiO2, SiO2 or a composite coating) can be added to the surface of the electrode to prevent the electrode from being corroded by condensate water in the refrigeration equipment or by environmental humidity, thereby ensuring the long-term stable ionization performance of the electrode. In addition, a wiring slot or a reserved wiring mounting hole is formed on the side surface of the insulating substrate 11 away from the condensation module 2. A conductive connecting member (such as a copper wire, an etched copper foil, or a metal grid 24) is arranged in the slot or the hole. The tail end (the end away from the sharp end) of all needle-shaped electrodes 111 is electrically connected to the conductive connecting member to form a unified electrode lead-out end for establishing a circuit connection with the negative electrode of the power supply module.

[0040] The condensation module 2 is the heat exchange core and the ion collection carrier, and is provided with a collection electrode.

[0041] The power supply module is a high-voltage conversion power supply. The input end of the power supply module can be adapted to the conventional power supply of the refrigeration equipment (such as alternating current mains, internal low-voltage direct current, etc.), and the output end can output high-voltage direct current to meet the air ionization demand. The shell of the power supply module is made of a material with flame retardation and insulation performance (such as ABS flame-retardant plastic, epoxy plastic, etc.). The internal rectification, filtering and high-voltage conversion circuit is integrated to realize the conversion of input electric energy to high-voltage direct current. The power supply module is fixed inside the refrigeration equipment frame (preferably close to the condensation module 2 to shorten the length of the wire connection between the electrode module 1, the condensation module 2 and the power supply module, and reduce the line loss) by bolts or buckles. The negative output terminal of the power supply module is connected to the lead-out end of the conductive connecting member of the electrode module 1 through a high-voltage resistant insulating wire. The positive output terminal is connected to the collection electrode of the condensation module 2 through a high-voltage resistant insulating wire of the same specification to form a complete high-voltage power supply circuit, thereby ensuring that a strong electric field can be stably formed between the electrode module 1 and the condensation module 2.

[0042] After the refrigeration equipment is started, the power module is turned on and outputs high-voltage direct current, so that a strong electric field is formed between the needle electrode 111 (connected to the negative electrode) of the electrode module 1 and the heat dissipation fin 22 (connected to the positive electrode) of the condensation module 2; under the action of the strong electric field, the air molecules at the tip of the needle electrode 111 are ionized into positive and negative ions, and the negative ions move to the positively charged heat dissipation fin 22 under the action of the electric field force, collide with neutral air molecules in the process, and push the neutral air molecules to flow to the heat dissipation fin 22 together, forming a directional ion wind airflow; the ion wind airflow directly acts on the surface of the heat dissipation fin 22, and the turbulent flow and shear force carried by the ion wind airflow can tear the originally stationary laminar boundary layer on the surface of the heat dissipation fin 22 into small fragments, and suck these fragments into the main airflow to be carried away, so that the metal surface of the heat dissipation fin 22 is directly in contact with the low-temperature airflow, greatly improving the heat transfer efficiency; at the same time, the ion wind airflow can also convert the laminar boundary layer on the surface of the heat dissipation fin 22 into a turbulent boundary layer, increase the kinetic energy of the airflow to resist the adverse pressure gradient, avoid the separation of the airflow in the fin gap and the generation of vortex flow, effectively reduce the airflow flow resistance, and further improve the carrying capacity of the airflow for heat.

[0043] Embodiment one

[0044] In this embodiment, as shown in Figure 1 The condensation module 2 includes a condensation pipeline 21, a plurality of heat dissipation fins 22 arranged at intervals, and a heat-conducting insulating member. The condensation pipeline 21 circulates refrigerant, the condensation pipeline 21 is arranged on the heat dissipation fins 22, and the heat-conducting insulating member is arranged between the condensation pipeline 21 and the heat dissipation fins 22. The heat dissipation fins 22 constitute the collection electrode of the condensation module 2. The condensation module 2 further includes an equipotential connecting piece 23, and the equipotential connecting piece 23 is connected with all the heat dissipation fins 22 in the condensation module 2.

[0045] Specifically, the condensation pipeline 21 is a core carrier for refrigerant circulation, and a metal material with high thermal conductivity and corrosion resistance to refrigerant can be selected. According to the refrigerant flow and installation space requirements of the refrigeration equipment, the condensation pipeline 21 is processed into a serpentine structure through a pipe bending process, that is, a plurality of horizontal straight pipe sections are arranged at intervals along the vertical direction, and the horizontal straight pipe sections are connected through U-shaped bent pipe sections to form a continuous and closed refrigerant circulation channel; the two ends of the condensation pipeline 21 respectively extend to the outside of the refrigeration equipment shell, one end serves as a refrigerant inlet (connected to the compressor exhaust end, and connected to high-temperature and high-pressure gaseous refrigerant), and the other end serves as a refrigerant outlet (connected to a throttling device, and outputs low-temperature and high-pressure liquid refrigerant), so as to ensure that the refrigerant can complete the condensation phase change in the condensation pipeline 21 and continuously release heat.

[0046] The heat dissipation fins 22 are key components for heat transfer, used to spread the heat transferred by the condensing pipeline 21 to a larger area to be in full contact with the airflow for heat exchange. The heat dissipation fins 22 can be made of copper or aluminum alloy, steel, titanium or other materials, and have a sheet shape or a honeycomb shape. The length of the heat dissipation fins 22 is adapted to the length of the horizontal straight pipe section of the condensing pipeline 21 to ensure that the fins can completely cover the heat dissipation area in the length direction of the pipeline. A plurality of circular through holes are punched in the heat dissipation fins 22 in the horizontal direction, and the hole diameter is adapted to the outer diameter of the condensing pipeline 21, so that the condensing pipeline 21 can be smoothly arranged through all the heat dissipation fins 22.

[0047] The heat-conducting insulating member is arranged between the condensing pipeline 21 and the heat dissipation fins 22, and its core function is to realize heat conduction and non-conduction. On the one hand, it needs to ensure that the heat of the condensing pipeline 21 can be efficiently transferred to the heat dissipation fins 22, avoiding the influence of heat exchange due to excessive thermal resistance. On the other hand, it needs to block the electrical conduction between the condensing pipeline 21 and the heat dissipation fins 22. The reason is that the heat dissipation fins 22 need to be connected to the high-voltage positive electrode as a collector, and the condensing pipeline 21 is usually connected with the shell (ground) of the refrigeration equipment or other metal components of the refrigerant system. If the two are directly in contact and conductive, high-voltage electricity will be introduced into the shell or the refrigerant system, causing electrical safety hazards or equipment failure.

[0048] The heat-conducting insulating member can be made of alumina ceramic, aluminum nitride ceramic, beryllium oxide ceramic, or heat-conducting silicone gasket, polyimide-based heat-conducting insulating pad, etc. At the same time, heat-conducting silicone grease or heat-conducting silicone gasket is applied to the contact surface of the heat-conducting insulating member and the condensing pipeline 21 and the heat dissipation fins 22 to fill the small gaps and further reduce the contact thermal resistance, ensuring efficient heat transfer.

[0049] The equipotential connecting piece 23 is used to keep all the heat dissipation fins 22 at the same potential, avoiding uneven ion collection due to the potential difference between the fins. If the potentials of the heat dissipation fins 22 are inconsistent, it will cause differences in the distribution of ion wind on the surfaces of different fins, and the ion wind intensity in some fin areas is insufficient to effectively break the boundary layer, thereby affecting the overall heat dissipation efficiency.

[0050] The equal-potential connecting piece 23 is made of long strip-shaped sheet of brass material. The brass has excellent conductivity, and has good ductility and welding performance. During assembly, the equal-potential connecting piece 23 is arranged along the horizontal straight pipe section of the condensing pipeline 21 and located at the outermost edge of the condensing pipeline 21. The surface of the equal-potential connecting piece 23 is attached to the end surface of each heat dissipation fin 22. The equal-potential connecting piece 23 and each heat dissipation fin 22 can be fixed and welded by resistance spot welding process to ensure that they form a firm mechanical connection and reliable electrical connection. At the same time, a terminal hole can be reserved in the middle of the equal-potential connecting piece 23 for fixing a high-voltage-resistant insulated wire by a bolt. The other end of the wire is connected to the positive output terminal of the power module, so that the high-voltage positive electrode can be uniformly transmitted to all the heat dissipation fins 22 through the equal-potential connecting piece 23, ensuring that each fin is at the same positive potential.

[0051] For this embodiment, the heat dissipation fins 22 are directly connected to the positive electrode of the power module through the potential connecting piece as the collecting electrode, without introducing many additional components, so that the ion wind can flow through the surface of the heat dissipation fins 22 to the greatest extent, achieving optimal heat exchange efficiency and flow resistance optimization.

[0052] Embodiment Two

[0053] The difference between this embodiment and Embodiment One is that this embodiment sets a metal grid 24 as the collecting electrode instead of using the heat dissipation fins 22 as the collecting electrode. In this embodiment, as shown in Figure 2 the condensing module 2 includes a condensing pipeline 21, a plurality of heat dissipation fins 22 arranged at intervals, and a metal grid 24. The condensing pipeline 21 circulates refrigerant. The condensing pipeline 21 is arranged on the heat dissipation fins 22. The metal grid 24 is arranged in the interval space of the heat dissipation fins 22, and the metal grid 24 constitutes the collecting electrode of the condensing module 2. The load piece 241 of the metal grid 24 is arranged at an angle with the cross section of the heat dissipation fin 22.

[0054] Specifically, the metal grid 24 is used as the collecting electrode of the condensing module 2 to form ion wind in cooperation with the electrode module 1. The metal grid 24 is arranged in the interval space of the heat dissipation fins 22 (i.e. in the channel between the adjacent two heat dissipation fins 22), and the cross section of the load piece 241 of the metal grid 24 is arranged at an angle with the cross section of the fin of the heat dissipation fin 22, preferably perpendicular. This design can make the load piece 241 form a specific angle with the airflow direction, which neither hinders the airflow flowing in the fin gap nor maximizes the ion collection area, ensuring that the ion wind uniformly acts on the surface of the heat dissipation fin 22.

[0055] In this embodiment, the metal grid 24 is made of copper, aluminum alloy, steel, titanium or the like, and the surface is covered with a nano-hydrophobic insulating coating. The metal grid 24 is composed of a plurality of spaced load plates 241 and an edge frame. The load plate 241 is a long strip-shaped metal plate, the length of which is adapted to the height of the heat dissipation fin 22 (i.e. extending in the direction perpendicular to the condensing pipeline 21), and the edge frame is a rectangular frame. Both ends of all load plates 241 are fixedly connected (such as welded or integrally formed) with the edge frame, forming an overall grid structure. During assembly, the metal grid 24 is fixed in the spaced space of the heat dissipation fin 22 through an insulating support (such as a glass fiber epoxy resin support), ensuring that the load plate 241 does not contact the heat dissipation fin 22 or the condensing pipeline 21 (to avoid short circuit), and the overall metal grid 24 is spaced apart from the electrode module 1. The edge frame of the metal grid 24 is provided with a wiring terminal, which is connected with the positive electrode of the power supply module through a high-voltage resistant insulating wire, so that the overall metal grid 24 is at the positive potential, and the negative ions generated by the electrode module 1 can be effectively collected.

[0056] For this embodiment, the metal grid 24 is used as the collecting electrode, and the heat dissipation fin 22 is not electrified, so that the heat dissipation fin 22 can directly contact the condensing pipeline, thereby improving the heat dissipation efficiency.

[0057] Embodiment Three

[0058] The difference between this embodiment and embodiment two is that a support frame 25 is provided in this embodiment, and the collecting electrode 100 is arranged on the support frame 25 instead of using the metal grid 24 as the collecting electrode 100. In this embodiment, as shown in Figure 3 the condensing module 2 includes a condensing pipeline 21, a plurality of spaced heat dissipation fins 22, and a support frame 25. The condensing pipeline 21 circulates refrigerant, the condensing pipeline 21 is arranged on the heat dissipation fin 22, and the collecting electrode 100 is arranged on the support frame 25. The collecting electrode 100 is arranged between the insulating substrate 11 and the heat dissipation fin 22. The support frame 25 is made of insulating material.

[0059] The support frame 25 is a mounting carrier for the collecting electrode 100 and is made of insulating material, which can be a glass fiber epoxy resin plate or aluminum oxide ceramic.

[0060] The collecting electrode 100 is arranged on the support frame 25 and is arranged between the insulating substrate 11 and the heat dissipation fin 22 of the electrode module 1. The collecting electrode 100 can be a metal mesh or a flat plate flow guide structure and is fixed on the support frame 25 by means of bolts or clamping groove structures. The collecting electrode 100 can be made of copper, aluminum alloy, steel or titanium. The collecting electrode 100 is provided with a wiring terminal in a certain area, which is connected with the positive electrode of the power supply module through a high-voltage resistant insulating wire, so that the overall collecting electrode 100 is at the positive potential, and the negative ions emitted by the electrode module 1 can be effectively received.

[0061] In this embodiment, the support frame 25 with the collecting electrode 100 is arranged between the insulating substrate 11 and the heat dissipation fins 22, which does not affect the heat transfer between the heat dissipation fins 22 and the condensation pipe 21.

[0062] Example 4

[0063] The difference between this embodiment and embodiment three is that the location of the support frame 25 is different. In this embodiment, as shown in the example below... Figure 4 As shown, the collecting electrodes 100 are spaced apart on the side of the heat dissipation fins 22 away from the insulating substrate 11.

[0064] In this embodiment, this arrangement does not affect the heat transfer between the heat dissipation fins 22 and the condensation pipe 21.

[0065] like Figures 1 to 4 As shown, this embodiment of the invention also provides a refrigeration device, including a fan 3 and the above-mentioned condenser heat dissipation device. The fan 3 is arranged at intervals on the side of the condenser heat dissipation device that is close to the air outlet of the refrigeration device, that is, the fan 3 is closer to the air outlet than the condenser heat dissipation device.

[0066] This invention also provides a method for controlling the operation of a refrigeration device, comprising the following steps:

[0067] S10. When the refrigeration equipment is working, detect the speed of fan 3.

[0068] After the refrigeration equipment is started, the speed of fan 3 is controlled by MCU.

[0069] S20. When the real-time speed of fan 3 is greater than the preset percentage threshold of its rated maximum speed, the condenser heat dissipation device is started while fan 3 is kept running.

[0070] S30. When the real-time speed of fan 3 is less than or equal to the preset percentage threshold of its rated maximum speed, the condenser heat dissipation device is stopped while fan 3 is kept running.

[0071] For steps S10-S30, after the refrigeration equipment starts, the speed of fan 3 is controlled by the MCU. The preset percentage threshold is 60% of the rated maximum speed (this threshold can be adjusted according to the type of refrigeration equipment and the usage scenario, and can be preset through the parameter configuration interface of the main controller). When the real-time speed is greater than 60% of the rated maximum speed, the condenser cooling device is started while fan 3 is running. When the main controller detects that the real-time speed of fan 3 is less than or equal to 60% of the rated maximum speed, the condenser cooling device is stopped while fan 3 is running.

[0072] For steps S10-S30, such control can effectively control the noise of the refrigeration equipment while optimizing overall energy consumption.

[0073] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A condenser heat dissipation device, characterized in that, The device includes an electrode module, a condenser module, and a power module. The electrode module and the condenser module are arranged at intervals. The electrode module and the condenser module cooperate to ionize air and generate a flowing airflow. The electrode module includes an insulating substrate. The insulating substrate has a plurality of needle-shaped electrodes facing the condenser module on the side near the condenser module. The condenser module has a collecting electrode. The negative electrode of the electrode module is connected to the needle-shaped electrodes, and the positive electrode of the electrode module is connected to the collecting electrode.

2. The condenser heat dissipation device according to claim 1, characterized in that, The condensation module includes a condensation pipe, a number of spaced heat dissipation fins, and a thermally conductive insulating component. Refrigerant flows through the condensation pipe, which passes through the heat dissipation fins. The thermally conductive insulating component is located between the condensation pipe and the heat dissipation fins. The heat dissipation fins constitute the collecting electrode of the condensation module.

3. A condenser heat dissipation device according to claim 2, characterized in that, The condensation module also includes an equipotential bonding plate, which is connected to all the heat dissipation fins in the condensation module.

4. A condenser heat dissipation device according to claim 1, characterized in that, The condensation module includes condensation pipes, a number of spaced heat dissipation fins, and a metal grid. Refrigerant flows through the condensation pipes, which pass through the heat dissipation fins. The metal grid is disposed in the space between the heat dissipation fins and constitutes the collecting electrode of the condensation module.

5. A condenser heat dissipation device according to claim 4, characterized in that, The cross-section of the load-bearing plate of the metal grille is arranged at an angle to the cross-section of the heat dissipation fin.

6. A condenser heat dissipation device according to claim 1, characterized in that, The condensation module includes condensation pipes, several spaced heat dissipation fins, and a support frame. Refrigerant flows through the condensation pipes, which pass through the heat dissipation fins. The collecting electrode is located on the support frame.

7. A condenser heat dissipation device according to claim 6, characterized in that, The collecting electrodes are spaced between the insulating substrate and the heat dissipation fins, or the collecting electrodes are spaced on the side of the heat dissipation fins away from the insulating substrate.

8. A condenser heat dissipation device according to claim 6, characterized in that, The support frame is made of insulating material.

9. A refrigeration device, characterized in that, Includes a fan and a condenser heat dissipation device as described in any one of claims 1-8, wherein the fan is spaced apart on the side of the condenser heat dissipation device near the air outlet of the refrigeration equipment.

10. A method for controlling the operation of a refrigeration device, characterized in that, include: When the refrigeration equipment is working, monitor the fan speed; When the real-time speed of the fan exceeds the preset percentage threshold of its rated maximum speed, the condenser heat dissipation device is started while the fan is running. When the real-time speed of the fan is less than or equal to a preset percentage threshold of its rated maximum speed, the condenser heat dissipation device is stopped while the fan continues to operate.

Images