Brushless condensation fan and control method

Abstract

The invention discloses a brushless condensate fan and a control method, and relates to the technical field of condensate fans, the brushless condensate fan comprises a shell and a control module, the inner wall of the shell is fixedly connected with a support, the inner wall of the support is fixedly connected with a brushless fan, and the brushless fan can output airflow to the rear side of the shell; the outer wall of the shell is fixedly connected with a fixing plate, the inner wall of the fixing plate is fixedly connected with an infrared temperature monitoring module, the infrared temperature monitoring module is used for monitoring the temperature of cooling fins of the condenser, the infrared temperature monitoring module is electrically connected with the control module, and the outer side of the shell is further provided with a management and control mechanism. By arranging the infrared temperature monitoring module and the control module, the rotating speed of the brushless fan can be adjusted in real time according to the surface temperature of the cooling fins of the condenser, dynamic cooling control is achieved, the rotating speed is increased when the temperature of the fins is high, the cooling efficiency is enhanced, and the beneficial effects that energy waste is reduced, and the system operation reliability is improved are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of condensation fans, and particularly to a brushless condensation fan and a control method therefor. Background Art

[0002] Condensation fans are widely used in systems such as air conditioners, refrigeration, and industrial heat exchange. As the core heat dissipation component, their operating state directly affects the heat exchange efficiency and energy consumption level of the overall system. Existing condensation fans mostly operate in a constant power or fixed speed mode, making it difficult to adjust the working state in real time according to external environmental changes and load requirements, easily causing problems such as excessive energy consumption or insufficient heat dissipation efficiency. Especially under long-term operation of the condenser or high-temperature load conditions, the power consumption of the fan fluctuates violently, not only reducing the system energy efficiency ratio but also easily triggering potential faults such as equipment overheating and shortened lifespan; The existing Chinese patent with the publication number CN106224268B discloses a permanent magnet brushless DC variable frequency axial flow fan. In terms of its topological structure, through the design of the fan frame, impeller, aluminum alloy heat dissipation frame, and cover plate, it well solves the integrated structure of the fan, motor, and controller, with a compact and reasonable structure. At the same time, it solves the problems of VMOS power tube assembly and heat dissipation. However, under the condenser working conditions, the factors affecting the fan power and the body temperature often come from the condenser heat dissipation fins and the body working environment. Although this device adopts the back electromotive force detection technology, there are still deficiencies in terms of the response to external influences and the energy consumption stability under different working conditions. Especially when dealing with the short-term high temperature and rapid heat dissipation requirements of the heat dissipation object or complex working condition switching, the system is difficult to maintain the dynamic balance of the fan power consumption, and there is still a large room for improvement; Therefore, there is an urgent need to provide a control method that can achieve stable regulation of the fan power consumption, enabling the fan to reduce energy waste while ensuring the heat dissipation performance and improving the reliability of the system operation. Summary of the Invention

[0003] The purpose of the present invention is to provide a brushless condensation fan and a control method therefor to solve the problems raised in the above background art.

[0004] To solve the above technical problems, the present invention provides the following technical solution: A brushless condensation fan includes a housing and a control module. A bracket is fixedly connected to the inner wall of the housing, and a brushless fan is fixedly connected to the inner wall of the bracket. The brushless fan can output air flow to the rear side of the housing; A fixing plate is fixedly connected to the outer wall of the housing, and an infrared temperature monitoring module is fixedly connected to the inner wall of the fixing plate. The infrared temperature monitoring module is used to monitor the temperature of the condenser heat dissipation fins, and the infrared temperature monitoring module is electrically connected to the control module; A control mechanism is further provided on the outer side of the housing; The input direction of the infrared temperature monitoring module is consistent with the output direction of the brushless fan.

[0005] According to the above technical solution, the control mechanism includes a liquid sac, the liquid sac is located on the front side of the housing, the inner wall of the liquid sac is fixedly connected to the outer wall of the housing, a liquid pump is fixedly connected to the outside of the liquid sac, one end of the liquid pump is fixedly connected to a first connecting pipe, one end of the first connecting pipe is fixedly connected to the outer wall of the liquid sac, the inside of the liquid sac and one end of the liquid pump are communicated through the first connecting pipe, the other end of the liquid pump is fixedly connected to a second connecting pipe, the end of the second connecting pipe away from the liquid pump penetrates through the housing and extends to the rear side of the brushless fan inside the housing, a heat absorption cavity is fixedly connected to the rear side of the brushless fan, one side of the heat absorption cavity is fixedly connected to a third connecting pipe, the end of the third connecting pipe away from the heat absorption cavity penetrates through the housing and extends to the outside of the housing and is fixedly connected to the outer wall of the liquid sac, and the inside of the heat absorption cavity is communicated with the inside of the liquid sac through the third connecting pipe.

[0006] According to the above technical solution, the liquid sac is a ring-shaped hollow structure, and the liquid sac is made of elastic rubber material, the heat absorption cavity is a ring-shaped hollow structure, and the heat absorption cavity is made of metal material, and a heat dissipation mechanism is arranged at the rear side of the heat absorption cavity.

[0007] According to the above technical solution, the liquid pump is electrically connected to the control module, and both ends of the liquid pump can be switched between the output end and the input end.

[0008] According to the above technical solution, the heat dissipation mechanism includes an elastic film, a hydraulic cavity is fixedly connected to the front side of the inner wall of the elastic film, a support rod is inserted into the inner wall of the hydraulic cavity, the rear end of the support rod is fixedly connected to the rear side of the inner wall of the elastic film, a fourth connecting pipe is fixedly connected to the inner wall of the hydraulic cavity, a pressure valve is arranged inside the fourth connecting pipe, the other end of the fourth connecting pipe extends out of the hydraulic cavity, the elastic film and is communicated with the inside of the heat absorption cavity, and the inside of the hydraulic cavity is communicated with the end of the second connecting pipe away from the liquid pump.

[0009] According to the above technical solution, a support block is fixedly connected to the rear side of the heat absorption cavity, the rear end of the support block is embedded in the front side inside of the hydraulic cavity, a spring is also fixedly connected to the rear side of the heat absorption cavity, and the rear end of the spring is fixedly connected to the front side of the hydraulic cavity.

[0010] According to the above technical solution, the support rod can slide back and forth relative to the hydraulic cavity, and after the support rod moves backward, the outer wall of the elastic film is in a water droplet shape with a smaller diameter at the rear side and a larger diameter at the front side.

[0011] A control method for a brushless condensing fan includes the following five steps: Step 1: The infrared temperature monitoring module is used to monitor the temperature of the surface of the condenser heat dissipation fins in real time, and transmit the detection result to the control module; Step 2: The control module automatically adjusts the rotation speed of the brushless fan motor according to the temperature change of the heat dissipation fins, increases the fan speed when the fin temperature rises, and decreases the fan speed when the temperature drops, so as to achieve energy consumption control; Step 3: The control module calculates the ratio of power consumption to rotation speed during the operation of the brushless fan in real time. When the ratio deviates from the preset threshold, it is judged that the motor temperature rise is abnormal, and the cooling control step is entered; Step 4: Start the liquid pump to extract the liquid from the liquid sac cavity and transport it to the heat absorption cavity through the second connecting pipe, so that the coolant absorbs and takes away the heat generated by the brushless fan, and reduces the operating temperature of the brushless fan; Step 5: When the fin temperature drops slowly, further control the hydraulic pressure to push the support rod to deform the elastic film into a water droplet-shaped structure, guide the high-speed concentrated airflow to impact the surface of the heat dissipation fins to enhance the heat transfer efficiency, and cause local disturbance through pulse control to remove attachments and spread the heat accumulation area, thereby improving the overall heat dissipation effect.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: By setting an infrared temperature monitoring module and a control module, the present invention can adjust the rotation speed of the brushless fan in real time according to the surface temperature of the condenser heat dissipation fins, realize dynamic heat dissipation control, increase the rotation speed to enhance the heat dissipation efficiency when the fin temperature is high, and reduce the rotation speed to reduce energy consumption when the fin temperature is low, thereby effectively reducing energy waste and extending the service life of the fan; By setting a liquid cooling channel structure composed of a liquid sac, a liquid pump, a first connecting pipe, a second connecting pipe, a heat absorption cavity, and a third connecting pipe, when the temperature rise is abnormal due to the long-term high-load operation of the brushless fan, the coolant circulation can be automatically started, and the heat can be quickly taken away through the high-efficiency heat conduction of the heat absorption cavity made of metal material, effectively controlling the motor temperature rise and ensuring the operation stability and safety; By setting a deformable water droplet-shaped jet structure composed of an elastic film, a hydraulic cavity, a support rod, a fourth connecting pipe, etc., when the heat dissipation efficiency is insufficient, the rotation speed of the brushless fan can be increased and combined with the backward movement of the support rod to form a water droplet contour, guiding the airflow to concentrate on impacting the surface of the condenser fins to remove attachments, and at the same time improving the local heat transfer efficiency to achieve the purpose of quickly enhancing the heat dissipation ability; By setting a limit and support mechanism composed of a support block and a spring, and combining with the liquid pump pulse liquid control method, the hydraulic cavity generates a small swing under the hydraulic pulse, drives the elastic film to guide the airflow to diffuse in all directions to remove the hot gas accumulation area, supplemented by the vibration of the fan blade to shake off the attachments, further enhancing the cooling efficiency and operation stability, and having the ability of fault alarm to ensure the intelligent and safe operation of the system. Description of the Drawings

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is a schematic three-dimensional structure diagram of the present invention; Figure 2 is a schematic rear-side structure diagram of the present invention; Figure 3 is a schematic disassembled structure diagram of the present invention; Figure 4 is a schematic cross-sectional structure diagram of the outer shell of the present invention; Figure 5 is a schematic internal structure diagram of the elastic film of the present invention; Figure 6 is the present invention Figure 5 a schematic enlarged structure diagram of A therein; In the figure: 1 outer shell, 2 bracket, 3 brushless fan, 4 fixing plate, 5 infrared temperature monitoring module, 6 control mechanism, 601 liquid sac, 602 liquid pump, 603 first connecting pipe, 604 second connecting pipe, 605 heat absorption cavity, 606 third connecting pipe, 607 heat dissipation mechanism, 701 elastic film, 702 hydraulic cavity, 703 support rod, 704 fourth connecting pipe, 705 support block, 706 spring. Detailed Embodiments

[0014] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0015] Embodiment 1: Please refer to Figure 1-2 , the present invention provides a technical solution: a brushless condensing fan, including an outer shell 1 and a control module. The inner wall of the outer shell 1 is fixedly connected with a bracket 2, and the inner wall of the bracket 2 is fixedly connected with a brushless fan 3. The brushless fan 3 can output air flow to the rear side of the outer shell 1. The outer wall of the outer shell 1 is fixedly connected with a fixing plate 4, and the inner wall of the fixing plate 4 is fixedly connected with an infrared temperature monitoring module 5. The infrared temperature monitoring module 5 is used to monitor the temperature of the condenser heat dissipation fins, and the infrared temperature monitoring module 5 is electrically connected to the control module. A control mechanism 6 is further provided on the outside of the outer shell 1, and the input direction of the infrared temperature monitoring module 5 is the same as the output direction of the brushless fan 3; During the actual application of this device, the infrared temperature monitoring module 5 is used to monitor the surface temperature of the condenser cooling fins in real time. The control module monitors the rotation speed and real-time power of the brushless fan 3, and after obtaining the surface temperature of the cooling fins through the infrared temperature monitoring module 5, the control module makes a decision to adjust the rotation speed of the brushless fan 3. When the temperature of the cooling fins is relatively high, the rotation speed of the brushless fan 3 is increased to improve the heat dissipation efficiency; when the temperature of the cooling fins is relatively low, the rotation speed of the brushless fan 3 is decreased to adjust the working energy consumption of the brushless fan 3 and reduce energy waste. The brushless condensing fan of the present invention has a compact structure, is convenient to install, and has strong adaptability. By constructing a dynamic regulation closed-loop system through the infrared temperature monitoring module 5 and the control module, it can not only achieve real-time perception of the condenser heat dissipation process, but also intelligently adjust the fan operation parameters based on actual needs, thereby avoiding excessive energy consumption while ensuring the heat dissipation efficiency. It is particularly suitable for scenarios with large fluctuations in heat dissipation requirements, such as high-temperature weather or frequent start-stop conditions. It can effectively alleviate the energy efficiency decline and temperature rise risks brought by the long-term high-load operation of the fan, significantly improve the operation stability of the condensing system and extend the equipment life. At the same time, by precisely controlling the fan power consumption, it can reduce electric energy waste, lower the long-term operation cost of the system, improve the adaptability of the system to complex working conditions and the intelligent level while achieving energy conservation and consumption reduction.

[0016] Embodiment 2: Please refer to Figure 1-5 , the present invention provides a technical solution: The control mechanism 6 includes a liquid sac 601. The liquid sac 601 is located on the front side of the outer shell 1. The inner wall of the liquid sac 601 is fixedly connected to the outer wall of the outer shell 1. A liquid pump 602 is fixedly connected to the outside of the liquid sac 601. One end of the liquid pump 602 is fixedly connected to a first connecting pipe 603. One end of the first connecting pipe 603 is fixedly connected to the outer wall of the liquid sac 601. The inside of the liquid sac 601 and one end of the liquid pump 602 are communicated through the first connecting pipe 603. The other end of the liquid pump 602 is fixedly connected to a second connecting pipe 604. The end of the second connecting pipe 604 away from the liquid pump 602 penetrates the outer shell 1 and extends to the rear side of the brushless fan 3 inside the outer shell 1. A heat absorption cavity 605 is fixedly connected to the rear side of the brushless fan 3. One side of the heat absorption cavity 605 is fixedly connected to a third connecting pipe 606. The end of the third connecting pipe 606 away from the heat absorption cavity 605 penetrates the outer shell 1 and extends to the outside of the outer shell 1 and is fixedly connected to the outer wall of the liquid sac 601. And the inside of the heat absorption cavity 605 is communicated with the inside of the liquid sac 601 through the third connecting pipe 606. The liquid sac 601 is a ring-shaped hollow structure, and the liquid sac 601 is made of elastic rubber material. The heat absorption cavity 605 is a ring-shaped hollow structure, and the heat absorption cavity 605 is made of metal material. A heat dissipation mechanism 607 is arranged at the rear side of the heat absorption cavity 605. The liquid pump 602 is electrically connected to the control module, and both ends of the liquid pump 602 can be switched between the output end and the input end. The heat dissipation mechanism 607 includes an elastic film 701. A hydraulic chamber 702 is fixedly connected to the front side of the inner wall of the elastic film 701. A support rod 703 is inserted into the inner wall of the hydraulic chamber 702. The rear end of the support rod 703 is fixedly connected to the rear side of the inner wall of the elastic film 701. A fourth connecting pipe 704 is fixedly connected to the inner wall of the hydraulic chamber 702. A pressure valve is arranged inside the fourth connecting pipe 704. The other end of the fourth connecting pipe 704 penetrates through the hydraulic chamber 702, the elastic film 701, and the heat absorption chamber 605 and is communicated with the inside of the heat absorption chamber 605. The inside of the hydraulic chamber 702 is communicated with the end of the second connecting pipe 604 far away from the liquid pump 602. During the application of this device, the control module will detect the rotation speed and working energy consumption of the brushless fan 3 in real time, and compare and record the rotation speed and energy consumption of the brushless fan 3. When the brushless fan 3 works for a long time, especially when the temperature of the heat dissipation fins is relatively high and the brushless fan 3 needs to operate at a high rotation speed for heat dissipation, the temperature of the brushless fan 3 will increase. As a result, the ratio of the power consumption to the rotation speed of the brushless fan 3 will deviate from the preset value. When this value exceeds the threshold, the liquid pump 602 is started, so that the liquid pump 602 extracts the cooling liquid inside the liquid sac 601 through the first connecting pipe 603, and then discharges it into the inside of the hydraulic chamber 702 through the second connecting pipe 604, and then discharges it into the inside of the heat absorption chamber 605 through the fourth connecting pipe 704, and finally returns to the inside of the liquid sac 601 through the third connecting pipe 606 on the heat absorption chamber 605. During this process, since the heat absorption chamber 605 is a metal ring-shaped hollow structure, when the cooling liquid passes through the inside of the heat absorption chamber 605, it will take away the heat of the heat absorption chamber 605 and enable the heat absorption chamber 605 to continuously absorb the heat of the brushless fan 3, thereby controlling the working temperature of the brushless fan 3. Until the ratio of the rotation speed to the power consumption of the brushless fan 3 returns to the preset range for a period of time, the operation of the liquid pump 602 can be stopped. Through the introduction of the control mechanism 6 designed by combining liquid heat transfer and elastic heat dissipation, the brushless condensing fan of the present invention has the active heat regulation ability and the power consumption self-balancing function. The liquid sac 601 made of elastic rubber can not only buffer the change of liquid pressure but also adapt to different capacity requirements to avoid liquid stagnation pressure. The metal heat absorption chamber 605 can efficiently capture and conduct the heat generated during the operation of the fan, achieving energy efficiency optimization and service life extension while improving reliability, and is applicable to air conditioners, refrigeration or industrial heat exchange scenarios with high requirements for heat dissipation performance and energy consumption control.

[0017] Example three: Please refer to Figure 1-5, the present invention provides a technical solution: a support block 705 is fixedly connected to the rear side of the heat absorption cavity 605, the rear end of the support block 705 is embedded inside the front side of the hydraulic cavity 702, a spring 706 is also fixedly connected to the rear side of the heat absorption cavity 605, and the rear end of the spring 706 is fixedly connected to the front side of the hydraulic cavity 702. The support rod 703 can slide back and forth relative to the hydraulic cavity 702, and after the support rod 703 moves backward, the outer wall of the elastic film 701 is in a water droplet shape with a smaller diameter at the rear side and a larger diameter at the front side; During the operation of the brushless fan 3, the control module will record and compare the rotational speed of the brushless fan 3 and the temperature drop rate of the heat dissipation fins to generate a value. When the temperature of the heat dissipation fins of the condenser remains at a high temperature and the rotational speed of the brushless fan 3 is stable for a period of time, and then the temperature drop speed of the heat dissipation fins of the condenser is less than the preset value, at this time, the control module starts the liquid pump 602, and quickly pumps liquid into the hydraulic cavity 702 through the liquid pump 602, and increases the rotational speed of the brushless fan 3, so that the internal hydraulic pressure of the hydraulic cavity 702 rises and pushes the support rod 703 to move backward, thereby making the support rod 703 pull the elastic film 701 into a water droplet shape. After the air flow passes through the outer wall of the elastic film 701, due to the shape guidance of the elastic film 701, the air flow will gather at the tail end of the support rod 703 to form a high-pressure and high-speed air flow, and the air flow will increase the impact ability on the surface of the condenser heat dissipation fins, thereby removing the adhesions on the surface of the heat dissipation fins, and increasing the heat dissipation ability of the condenser heat dissipation fins in a short time. At the same time, the cooling liquid quickly flows through the inside of the heat absorption cavity 605 to cool the brushless fan 3 with a high rotational speed in this state. When the temperature of the heat dissipation fins drops, the liquid pump 602 can be started to reverse-pump the liquid inside the hydraulic cavity 702 into the liquid bladder 601 through the second connecting pipe 604. At this time, the pressure valve inside the fourth connecting pipe 704 prevents the liquid inside the heat absorption cavity 605 from flowing back into the hydraulic cavity 702, so the liquid inside the hydraulic cavity 702 is pumped back into the liquid bladder 601 through the second connecting pipe 604, and the support rod 703 retracts into the hydraulic cavity 702, reducing the volume of the elastic film 701 and reducing the impact on the normal working condition of the device; In this application, a structure in which the support block 705 and the spring 706 cooperate with each other is introduced in the connection mode between the heat absorption cavity 605 and the hydraulic cavity 702, which not only improves the guiding stability of the support rod 703, but also realizes automatic recovery after the hydraulic pressure weakens, so as to ensure that the device can return to the initial state without excessive control intervention and does not interfere with the normal working condition operation. The water droplet-shaped structure formed by the elastic film 701 can guide the air flow to generate a high-speed focused impact flow to improve the cleaning and heat exchange efficiency of the heat dissipation fins. When the heat dissipation is insufficient, it can greatly improve the local cooling ability in a short time and strengthen the suppression of the risk of fan overheating. After the temperature of the heat dissipation fins drops, it can adjust the structure in time, reduce the volume of the elastic film, and reduce the interference with the normal working condition, realizing dynamic adjustment of the heat dissipation method and intensity according to the heat dissipation demand, improving the heat dissipation efficiency and reliability of the condensing fan, and prolonging the service life of the equipment.

[0018] Embodiment 4: Please refer to Figure 1-6 , the technical solution provided by the present invention is as follows: When the power consumption and rotation speed of the brushless fan 3 exceed the threshold and are cooled by the control mechanism 6, if the brushless fan 3 is still in an abnormal state after the control mechanism 6 has been started for a period of time, the liquid pump 602 can be started by the control module to pump liquid into the hydraulic cavity 702 in a pulsed liquid pumping manner, so that the water flow rapidly impacts the hydraulic cavity 702 intermittently in a short time, and then the hydraulic cavity 702 generates a small amplitude of shaking under the support of the spring 706 and the limit of the support block 705, so that the airflow is converged by the elastic film 701 and diverges around, rapidly driving away the hot air generated by the heat dissipation fins around the device. At the same time, it causes the vibration of the brushless fan 3, and removes the possible attachments on the surface of its blades when the brushless fan 3 is rotating, which helps to cool the brushless fan 3 and stabilize the power consumption and rotation speed of the brushless fan 3. In this state, if the brushless fan 3 remains at a high temperature, a maintenance notice is sent to the receiving terminal through the control module, which can ensure that the device is in the best working state.

[0019] This device is a brushless condensing fan, which uses the fan infrared temperature monitoring module 5 to monitor the surface temperature of the condenser heat dissipation fins in real time, and the control module automatically adjusts the rotation speed of the brushless fan 3 according to the temperature change. When the temperature is high, the rotation speed is increased to enhance heat dissipation, and when the temperature is low, the rotation speed is decreased to reduce energy consumption. When the ratio of power consumption to rotation speed becomes abnormal due to long-term high-load operation, the control mechanism 6 is started, and the liquid pump 602 transports the liquid from the liquid bladder 601 to the heat absorption cavity 605 through the second connecting pipe 604 to quickly remove the heat, realizing the dynamic regulation of the fan temperature and ensuring its power stability. When the heat dissipation fins are at a high temperature for a long time, the device further drives the elastic film 701 to deform through hydraulic pressure, guiding the high-speed airflow to impact the surface of the condenser fins, enhancing local heat dissipation and removing attachments, thereby improving the heat dissipation efficiency of the heat dissipation fins, avoiding the increase in power consumption caused by the brushless fan 3 running at too high a rotation speed for a long time and reducing the risk of damage. When the power consumption of the brushless fan 3 is abnormal for a long time, the elastic film 701 can be swung by the pulsed liquid pumping method to disperse the accumulated heat and vibrate the blades of the brushless fan 3 to remove the attachments on the blades, so as to achieve the synergistic effect of energy consumption control, heat dissipation efficiency improvement and intelligent response to abnormal states of the brushless fan 3.

[0020] This application also discloses a control method for a brushless condensing fan, including the following steps: Step 1: The infrared temperature monitoring module 5 monitors the surface temperature of the condenser heat dissipation fins in real time and transmits the detection result to the control module; Step 2: The control module automatically adjusts the rotation speed of the motor of the brushless fan 3 according to the temperature change of the heat dissipation fins, increases the fan rotation speed when the fin temperature rises, and decreases the fan rotation speed when the temperature drops, so as to achieve energy consumption control; Step 3: The control module calculates the ratio of power consumption to rotational speed during the operation of the brushless fan 3 in real time. When this ratio deviates from the preset threshold, it is determined that the motor temperature rise is abnormal, and the cooling control step is entered; Step 4: Start the liquid pump 602 to extract the liquid from the cavity of the liquid sac 601 and transport it to the heat absorption cavity 605 through the second connecting pipe 604, so that the coolant absorbs and takes away the heat generated by the brushless fan 3, reducing the operating temperature of the brushless fan 3; Step 5: When the temperature of the fin drops slowly, further control the hydraulic pressure to push the support rod 703 to deform the elastic film 701 into a water droplet shape, guiding the high-speed concentrated airflow to impact the surface of the heat dissipation fin to enhance the heat transfer efficiency, and causing local disturbances through pulse control to remove attachments and spread the heat accumulation area, thereby improving the overall heat dissipation effect.

[0021] The brushless condensing fan control method described in this application combines multiple control strategies such as real-time temperature sensing, dynamic fan speed regulation, liquid cooling for rapid temperature reduction, airflow enhanced heat transfer, and pulse disturbance cleaning. It can intelligently respond to high-temperature or high-energy consumption states according to the operating conditions of the condenser, reduce energy waste and extend the fan life through speed regulation. At the same time, it uses a liquid pump to quickly deliver liquid to achieve precise heat dissipation control. When the liquid cooling efficiency is limited, the heat transfer capacity is further improved by deforming the elastic film to strengthen the local airflow guidance. The disturbance flow field formed by the swing of the hydraulic cavity driven by the pulse pump not only accelerates the diffusion of accumulated heat but also achieves a self-cleaning effect through the vibration of the fan, overall improving the system operation efficiency, energy-saving effect, and intelligent control level, thereby ensuring the stable and reliable operation of the fan system under various working conditions.

[0022] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0023] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A brushless condensing fan, comprising a housing (1) and a control module, characterized in that: The inner wall of the housing (1) is fixedly connected with a bracket (2), and the inner wall of the bracket (2) is fixedly connected with a brushless blower (3), and the brushless blower (3) can output air flow to the rear side of the housing (1); The outer wall of the housing (1) is fixedly connected with a fixing plate (4), and the inner wall of the fixing plate (4) is fixedly connected with an infrared temperature monitoring module (5), and the infrared temperature monitoring module (5) is used for monitoring the temperature of the condenser heat dissipation fins, and the infrared temperature monitoring module (5) is electrically connected to the control module; A control mechanism (6) is further arranged on the outer side of the housing (1); The input direction of the infrared temperature monitoring module (5) is the same as the output direction of the brushless blower (3).

2. The brushless condensation fan according to claim 1, characterized in that: The control mechanism (6) includes a liquid bag (601), the liquid bag (601) is located on the front side of the housing (1), the inner wall of the liquid bag (601) is fixedly connected with the outer wall of the housing (1), the outer side of the liquid bag (601) is fixedly connected with a liquid pump (602), one end of the liquid pump (602) is fixedly connected with a first connecting pipe (603), one end of the first connecting pipe (603) is fixedly connected with the outer wall of the liquid bag (601), the inside of the liquid bag (601) and one end of the liquid pump (602) are communicated through the first connecting pipe (603), the other end of the liquid pump (602) is fixedly connected with a second connecting pipe (604), the end of the second connecting pipe (604) far away from the liquid pump (602) penetrates through the housing (1) and extends to the rear side of the brushless blower (3) inside the housing (1), a heat absorption cavity (605) is fixedly connected to the rear side of the brushless blower (3), one side of the heat absorption cavity (605) is fixedly connected with a third connecting pipe (606), the end of the third connecting pipe (606) far away from the heat absorption cavity (605) penetrates through the housing (1) and extends to the outside of the housing (1) and is fixedly connected with the outer wall of the liquid bag (601), and the inside of the heat absorption cavity (605) is communicated with the inside of the liquid bag (601) through the third connecting pipe (606).

3. The brushless condensation fan according to claim 2, characterized in that: The liquid bag (601) is a circular hollow structure, and the liquid bag (601) is made of elastic rubber material, the heat absorption cavity (605) is a circular hollow structure, and the heat absorption cavity (605) is made of metal material, and a heat dissipation mechanism (607) is arranged at the rear side of the heat absorption cavity (605).

4. The brushless condensing fan according to claim 3, wherein: The liquid pump (602) is electrically connected to the control module, and both ends of the liquid pump (602) can be switched between the output end and the input end.

5. The brushless condensing fan according to claim 4, characterized in that: The heat dissipation mechanism (607) includes an elastic film (701). A hydraulic chamber (702) is fixedly connected to the front side of the inner wall of the elastic film (701). A support rod (703) is inserted into the inner wall of the hydraulic chamber (702). The rear end of the support rod (703) is fixedly connected to the rear side of the inner wall of the elastic film (701). A fourth connecting pipe (704) is fixedly connected to the inner wall of the hydraulic chamber (702). A pressure valve is arranged inside the fourth connecting pipe (704). The other end of the fourth connecting pipe (704) extends out of the hydraulic chamber (702) and the elastic film (701) and is communicated with the inside of the heat absorption chamber (605). The inside of the hydraulic chamber (702) is communicated with the end of the second connecting pipe (604) far from the liquid pump (602).

6. The brushless condensing fan according to claim 5, wherein: A support block (705) is fixedly connected to the rear side of the heat absorption chamber (605). The rear end of the support block (705) is embedded inside the front side of the hydraulic chamber (702). A spring (706) is also fixedly connected to the rear side of the heat absorption chamber (605). The rear end of the spring (706) is fixedly connected to the front side of the hydraulic chamber (702).

7. The brushless condensing fan according to claim 6, wherein: The support rod (703) can slide in the front-rear direction relative to the hydraulic chamber (702). After the support rod (703) moves backward, the outer wall of the elastic film (701) is in a water droplet-like structure with a smaller diameter at the rear side and a larger diameter at the front side.

8. A control method for a brushless condensation fan, characterized in that: It includes the following steps: Step 1: The infrared temperature monitoring module (5) monitors the temperature of the surface of the condenser heat dissipation fins in real time and transmits the detection result to the control module. Step 2: The control module automatically adjusts the rotation speed of the motor of the brushless fan (3) according to the temperature change of the heat dissipation fins, increases the fan speed when the fin temperature rises, and decreases the fan speed when the temperature drops. Step 3: The control module calculates the ratio of the power consumption to the rotation speed during the operation of the brushless fan (3) in real time. When this ratio deviates from the preset threshold, it is judged that the motor temperature rise is abnormal, and the cooling control step is entered. Step 4: Start the liquid pump (602) to extract the liquid from the cavity of the liquid sac (601) and transport it to the heat absorption chamber (605) through the second connecting pipe (604), so that the coolant absorbs and takes away the heat generated by the brushless fan (3) and reduces the operating temperature of the brushless fan (3). Step 5: When the temperature of the fins drops slowly, control the hydraulic pressure to push the support rod (703) to deform the elastic film (701) into a water droplet-like structure, guide the high-speed concentrated airflow to impact the surface of the heat dissipation fins to enhance the heat transfer efficiency, and trigger the swing of the hydraulic chamber (702) through the pulse control method to form an airflow disturbance to remove attachments and spread the heat accumulation area.

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