Explosion-proof inverter

Abstract

The invention relates to the technical field of inverters, and discloses an anti-explosion inverter which comprises an anti-explosion inverter body, the anti-explosion inverter body comprises an inversion unit, an anti-explosion unit is arranged on the surface of the inversion unit, and a heat dissipation unit is arranged on the surface of the anti-explosion unit. According to the explosion-proof inverter, through the multi-stage linkage type explosion-proof structure, the electrostatic adsorption and mechanical wiping combined self-cleaning heat dissipation system and the modular collaborative optimization design, the traditional limitation is broken through, and compared with the prior art, the effects that the stress of the explosion-proof shell is more uniform, the deformation quantity is reduced, the heat dissipation efficiency retention rate is remarkably improved, and the maintenance time is greatly shortened are achieved; the environmental adaptability is enhanced, the problems of insufficient explosion prevention, heat dissipation attenuation, complex maintenance and the like of the traditional explosion-proof inverter are effectively solved, and a new design normal form is provided.

Description

Technical Field

[0001] The present invention relates to the technical field of inverters, in particular to an explosion-proof inverter. Background Art

[0002] In industrial fields such as petrochemicals, mining, and flammable and explosive gas treatment, inverters, as core equipment for power conversion, are crucial for operational safety and stability. Due to the presence of large amounts of flammable gases, dust, or steam in these scenarios, sparks or high temperatures generated by faults in the inverter's internal components may cause explosions. Furthermore, the heat dissipation requirements during equipment operation and the filter clogging caused by the dusty environment further increase safety risks and maintenance costs.

[0003] Traditional explosion-proof inverters typically use a single-layer explosion-proof casing with a simple buffer structure, which can only withstand the impact of the explosion through the rigidity of the casing material. This has obvious defects. On the one hand, the impact force generated by the explosion is concentrated on a local area of ​​the casing, which can easily cause the explosion-proof layer to crack or the buffer structure to fail, and cannot achieve step-by-step energy attenuation. On the other hand, the heat dissipation system mostly relies on fixed filters and passive heat dissipation designs. After long-term operation, dust accumulation seriously affects the heat dissipation efficiency, requiring frequent shutdowns for manual cleaning. This not only increases maintenance costs but may also cause equipment overheating failures due to untimely cleaning, posing a safety hazard. In addition, the explosion-proof structure and heat dissipation structure in the existing technology are independent of each other and lack coordinated design. This results in a large device with low functional integration, making it difficult to adapt to the compact and intelligent application requirements in high-risk environments. With the improvement of industrial automation, higher requirements are placed on the safety, heat dissipation efficiency, and self-maintenance capabilities of explosion-proof inverters. Due to structural design limitations, existing solutions cannot simultaneously meet the multiple performance requirements under complex working conditions. Therefore, an explosion-proof inverter is urgently needed. Summary of the Invention

[0004] The object of the present invention is to provide an explosion-proof inverter to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an explosion-proof inverter, comprising an explosion-proof inverter, the explosion-proof inverter comprising an inverter unit, an explosion-proof unit is provided on the surface of the inverter unit, and a heat dissipation unit is provided on the surface of the explosion-proof unit; The explosion-proof unit is used to add an explosion-proof structure to the inverter. The explosion-proof unit includes an explosion-proof shell, the inner wall of the explosion-proof shell is fixedly connected to the explosion-proof layer, the inner wall of the explosion-proof shell is also fixedly connected to a partition plate, the surface of the partition plate is provided with a slide groove, the inner wall of the slide groove is slidably connected to a slide rod, the end of the slide rod close to the explosion-proof layer is fixedly connected to the compression plate, the end of the slide rod away from the compression plate is fixedly connected to the rotating seat, the inner wall of the rotating seat is rotatably connected to the rotating frame, the inner wall of the rotating frame away from the rotating seat is slidably connected to a slide rail 1, the surface of the slide rail 1 is slidably connected to a spring, both ends of the slide rail 1 are fixedly connected to the mounting seat, and the surface of the mounting seat is fixedly connected to the transfer plate.

[0006] The inverter unit includes an inverter panel, a prompt plate is fixedly connected to the surface of the inverter panel, a communication interface is fixedly connected to the surface of the inverter panel, a socket is fixedly connected to the surface of the inverter panel, and an inverter body is fixedly connected to the surface of the inverter panel.

[0007] The surface of the inverter panel is fixedly connected to the surface of the transmission plate, and the inverter body penetrates the explosion-proof housing and extends to the outside thereof.

[0008] The heat dissipation unit is used to dissipate heat from the inverter panel and can regularly clean the dust covering its own surface. The heat dissipation unit includes a first motor, a mounting bracket 1 is fixedly connected to the surface of the first motor, a lead screw is rotatably connected to the inner wall of the lead screw, a slider is threadedly connected to the surface of the slider, a high-voltage generator is fixedly connected to the inner wall of the slider, a dust collecting electrode is fixedly connected to the inner wall of the slider, an ionizing electrode is also fixedly connected to the inner wall of the slider, a wiping pad is fixedly connected to the surface of the slider, and the heat dissipation unit also includes a heat pipe.

[0009] The inner wall of the heat dissipation pipe is fixedly connected to a second mounting frame, the surface of the second mounting frame is fixedly connected to a second motor, the output end of the second motor is fixedly connected to a fan blade, and the inner wall of the heat dissipation pipe is fixedly connected to a filter.

[0010] The inner wall of the slider is slidably connected to a second slide rail, the surface of the second slide rail is fixedly connected to the explosion-proof shell, the interior of the high-voltage generator is electrically connected to the dust collecting electrode, and the interior of the high-voltage generator is electrically connected to the ionization electrode.

[0011] The surface of the heat dissipation pipe is fixedly connected to the explosion-proof housing, and the output end of the second motor passes through the second mounting frame and is fixedly connected to the fan blade.

[0012] The surface of the first mounting bracket is fixedly connected to the surface of the explosion-proof housing, and the output end of the first motor is fixedly connected to the lead screw.

[0013] Compared with the prior art, the present invention has the following beneficial effects: First, the present invention breaks through the limitation of single rigid protection of traditional explosion-proof inverters through the multi-stage linkage explosion-proof structure design, significantly improving the absorption efficiency of explosion impact energy and the stability of the shell structure. In the existing technology, explosion-proof inverters usually rely on single-layer explosion-proof shells or simple buffer structures. During explosion, the pressure is concentrated on a local area, which can easily cause the shell to crack or the explosion-proof layer to fail. The present invention innovatively designs a "rigid extrusion + elastic buffer" dual explosion-proof mechanism. When the inverter panel explodes, the pressure first pushes the rotating frame to rotate around the rotating seat through the transmission plate, driving the slide rod along the partition plate. The linear sliding of the slide allows the compression plate to evenly squeeze the explosion-proof layer, converting the explosion impact force into a surface contact load on the explosion-proof layer, thus avoiding the problem of local stress overload in traditional structures. If the pressure continues to increase, the rotating frame slides along the slide rail to compress the spring, and further absorbs energy through the elastic deformation of the spring, forming a three-stage energy attenuation system of "structure-guided force unloading-rigid material energy consumption-elastic element buffering". Compared with the existing technology, this design improves the force uniformity of the explosion-proof casing and reduces the deformation of the casing under the same explosion impact, effectively extending the safe service life of the equipment in high-risk environments.

[0014] Second, the present invention integrates a self-cleaning heat dissipation system with electrostatic adsorption and mechanical wiping, solving the efficiency degradation problem of traditional heat dissipation structures caused by dust accumulation and achieving long-term stable heat dissipation performance. Existing inverter heat dissipation devices mostly use a passive heat dissipation mode with a fixed filter and a fan. After long-term operation, the filter is easily clogged with dust and requires regular manual removal and cleaning, which results in high maintenance costs and production downtime. The heat dissipation unit of the present invention creatively combines high-voltage electrostatic dust removal technology with a mechanical wiping mechanism. When dust accumulates on the filter in the heat pipe, the first motor drives the lead screw to drive the slider to reciprocate. The wiping pad on the slider surface physically cleans the filter. At the same time, the high-voltage generator generates an electrostatic field between the dust collecting electrode and the ionization electrode, causing dust particles in the air to be charged and adsorbed on the wiping pad surface. This composite dust removal mechanism can remove dust of multiple sizes ranging from 0.1 to 100 μm, with improved dust removal efficiency compared to traditional filters. It can also achieve an automatic cleaning cycle every hour without manual intervention. Combined with the active heat dissipation of the fan blades driven by the second motor, the inverter's heat dissipation efficiency is improved in dusty environments, significantly reducing the risk of equipment failure due to poor heat dissipation.

[0015] Third, the present invention achieves a system-level improvement in explosion-proof performance, heat dissipation efficiency and equipment maintainability through the coordinated optimization of modular structural design and functional units. Existing explosion-proof inverters often have design conflicts between explosion-proof structure and heat dissipation structure, resulting in bulky equipment or functional failure, and low integration of components. During maintenance, the entire device needs to be disassembled, which is time-consuming and labor-intensive. The present invention adopts a layered structural layout. The inverter body of the inverter unit passes through the explosion-proof housing and is directly connected to the outside. While ensuring the reliability of the electrical connection, it avoids the explosion-proof weak point at the wire seal in the traditional structure. The slide rail 2 of the heat dissipation unit is rigidly connected to the explosion-proof housing to ensure that the slider The standardized interface design of mounting frame 1 and mounting frame 2 allows the heat dissipation module to be independently disassembled, assembled and replaced, shortening maintenance time compared to traditional equipment. In addition, the sliding fit between the rotating frame and slide rail 1 in the explosion-proof unit, and the threaded transmission of the lead screw and slider in the heat dissipation unit are all made of wear-resistant materials and precision processing technology, so that the equipment can still operate stably under harsh working conditions with a temperature range of -40℃~85℃ and a vibration amplitude of ≤5g, and its environmental adaptability is improved compared to existing technologies. This design concept that combines functional requirements with structural mechanics and reliability engineering provides a new paradigm for the integrated design of electrical equipment in high-risk environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic diagram of the rear side of the overall structure of the present invention; Figure 4 It is a schematic diagram of the rear side of the overall structure of the present invention; Figure 5 It is a partial structural diagram of the present invention; Figure 6 It is a partial structural diagram of the present invention.

[0017] Legend: 1. Explosion-proof inverter; 10. Inverter unit; 1001. Inverter panel; 1002. Communication interface; 1003. Notice board; 1004. Socket; 1005. Inverter body; 20. Explosion-proof unit; 2001. Explosion-proof housing; 2002. Explosion-proof layer; 2003. Compression plate; 2004. Partition plate; 2005. Slide bar; 2006. Rotating seat; 2007. Rotating frame; 2008. Mounting seat; 2009. Slide rail 1; 2010. Spring; 2011. Transfer plate; 30. Heat dissipation unit; 3001. First motor; 3002. Mounting bracket 1; 3003. Lead screw; 3004. Slide rail 2; 3005. Slider; 3006. High-voltage generator; 3007. Dust collecting electrode; 3008. Ionization electrode; 3009. Wiping pad; 3010. Heat dissipation pipe; 3011. Mounting bracket 2; 3012. Second motor; 3013. Filter; 3014. Fan blade. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0019] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, the present invention provides a technical solution: an explosion-proof inverter, including an explosion-proof inverter 1, the explosion-proof inverter 1 includes an inverter unit 10, an explosion-proof unit 20 is provided on the surface of the inverter unit 10, and a heat dissipation unit 30 is provided on the surface of the explosion-proof unit 20; The explosion-proof unit 20 is used to add an explosion-proof structure to the inverter. The explosion-proof unit 20 includes an explosion-proof housing 2001. The inner wall of the explosion-proof housing 2001 is fixedly connected to an explosion-proof layer 2002. The inner wall of the explosion-proof housing 2001 is also fixedly connected to a partition plate 2004. The surface of the partition plate 2004 is provided with a slide groove. The inner wall of the slide groove is slidably connected to a slide rod 2005. The end of the slide rod 2005 close to the explosion-proof layer 2002 is fixedly connected to a compression plate 2003. 005 is fixedly connected to the rotating seat 2006 at one end away from the compression plate 2003, and the inner wall of the rotating seat 2006 is rotatably connected to the rotating frame 2007. The inner wall of the end of the rotating frame 2007 away from the rotating seat 2006 is slidably connected to the slide rail 1 2009, and the surface of the slide rail 1 2009 is slidably connected to the spring 2010. Both ends of the slide rail 1 2009 are fixedly connected to the mounting seat 2008, and the surface of the mounting seat 2008 is fixedly connected to the transfer plate 2011.

[0020] The function of the explosion-proof unit 20 is to build a multi-layer explosion-proof protection system for the inverter through a specific structural design. The explosion-proof shell 2001 serves as the basic supporting structure, and the explosion-proof layer 2002 fixed on its inner wall can directly withstand the initial impact of the explosion and provide basic explosion-proof capability; the partition plate 2004 is fixed to the inner wall of the explosion-proof shell 2001, and the sliding groove opened on its surface provides a sliding guide for the slide rod 2005, so that the slide rod 2005 can only move linearly along the preset direction, ensuring the stability of the force transmission path; the compression plate 2003 connected to one end of the slide rod 2005 is in contact with the explosion-proof layer 2002, and the other end is rotatably connected to the rotating frame 2007 through the rotating seat 2006. When the inverter panel 1001 explodes, the impact force generated by the explosion first acts on the transmission plate 2011 fixedly connected to the mounting seat 2008, and the transmission plate 2011 transmits the force to the rotating frame 2007. , so that the rotating frame 2007 rotates around the rotating seat 2006 and pushes the slide bar 2005 to slide in the slide groove, thereby driving the compression plate 2003 to uniformly squeeze the explosion-proof layer 2002, and avoid local stress concentration by expanding the force-bearing area of ​​the explosion-proof layer 2002, thereby achieving the initial dispersion and absorption of the explosion energy; if the impact force continues to increase, the end of the rotating frame 2007 away from the rotating seat 2006 will slide along the slide rail 1 2009 and compress the spring 2010 sleeved on the surface of the slide rail 1 2009, and use the elastic deformation of the spring 2010 to further absorb the remaining energy, forming a multi-stage explosion-proof mechanism of "rigid extrusion to disperse pressure-elastic element buffering energy absorption", and finally through the synergistic effect of various components, the impact force generated by the explosion is gradually attenuated, effectively protecting the inverter panel 1001 from explosion impact damage, and improving the safety and reliability of the equipment in flammable and explosive environments.

[0021] The inverter unit 10 includes an inverter panel 1001, a prompt board 1003 is fixedly connected to the surface of the inverter panel 1001, a communication interface 1002 is fixedly connected to the surface of the inverter panel 1001, a socket 1004 is fixedly connected to the surface of the inverter panel 1001, and an inverter body 1005 is fixedly connected to the surface of the inverter panel 1001.

[0022] The inverter unit 10 is used to carry the core electrical functions of the inverter and provide human-machine interaction and electrical connection interfaces. The inverter panel 1001 is the core carrier, and the internal integrated power conversion circuit is responsible for converting DC power into AC power. It is the main body to realize the inverter function. The communication interface 1002 fixed on its surface is used to control the start and stop of the inverter. By mechanically triggering the connection or disconnection of the internal circuit, manual control of the equipment operation status is realized. The prompt board 1003 displays the working parameters of the inverter in real time, such as voltage, current, frequency, operation mode, etc., providing users with an intuitive status monitoring interface, which is convenient for real-time understanding of the equipment operation status. The socket 1004 is used to connect external input and output devices or sensors, which can expand the equipment functions, such as connecting to remote control modules, data acquisition equipment, etc., to enhance the versatility and flexibility of the equipment. 05 is the electrical connection channel between the inverter and the external power supply and load. Its surface is fixed on the inverter panel 1001 and extends to the outside through the explosion-proof casing 2001. The sealing design ensures that the electrical connection in the explosion-proof casing 2001 is both safe and reliable and meets the explosion-proof requirements, so that the DC power of the external power supply can be input into the inverter panel 1001, and the converted AC power is output to the load. The above components are all fixed on the surface of the inverter panel 1001 to form a centralized functional layout, which is convenient for user operation and maintenance. Through the through-design of the inverter body 1005 and the explosion-proof unit 20, while ensuring the electrical connection functionality, it ensures the structural integrity and safety of the entire inverter in the explosion-proof casing 2001, making the inverter unit 10 the core functional hub connecting the external electrical system and the internal explosion-proof structure.

[0023] The surface of the inverter panel 1001 is fixedly connected to the surface of the transmission plate 2011 , and the inverter body 1005 passes through the explosion-proof housing 2001 and extends to the outside thereof.

[0024] The purpose of the fixed connection between the surface of the inverter panel 1001 and the surface of the transmission plate 2011 is to build a direct conduction path for the explosive impact force. When abnormal energy release occurs inside the inverter panel 1001, the impact force can be quickly transmitted to the transmission plate 2011 through the rigid connection between the two, thereby triggering the multi-stage buffering mechanism of the explosion-proof unit 20. The transmission plate 2011 serves as the initial interface for force conduction. Its fixed connection with the inverter panel 1001 ensures lossless transmission of the explosive energy, enabling explosion-proof components such as the rotating frame 2007, the sliding rod 2005, and the compression plate 2003 to respond synchronously. By squeezing the explosion-proof layer 2002 and the compression spring 2010, the impact force is gradually attenuated, avoiding the risk of explosion-proof failure caused by loose connections. The inverter body 1005 penetrates the explosion-proof shell 2001 and extends to the outside. The functionality of electrical connection is achieved under the premise of ensuring the sealing of the explosion-proof housing 2001. The inverter body 1005 serves as the power transmission channel between the inverter panel 1001 and the external power supply and load. Its penetrating structure is closely matched with the inner wall of the explosion-proof housing 2001 through seals such as explosion-proof sealing rings and cable glands, which not only ensures that external flammable and explosive gases cannot penetrate into the shell, but also prevents the pressure generated by the internal explosion from leaking from the inverter body 1005. At the same time, it meets the requirements for the installation of wires or cables, realizes the unity of explosion-proof performance and electrical connection reliability, avoids the safety hazards caused by improper design of the inverter body 1005 in traditional explosion-proof equipment, and enables the inverter to input and output power normally in high-risk environments, and ensure the safe operation of the equipment through the overall sealing and structural strength of the explosion-proof housing 2001.

[0025] The heat dissipation unit 30 is used to dissipate heat from the inverter panel 1001 and can regularly clean the dust covering its own surface. The heat dissipation unit 30 includes a first motor 3001. The surface of the first motor 3001 is fixedly connected to a mounting bracket 3002. The inner wall of the mounting bracket 3002 is rotatably connected to a lead screw 3003. The surface of the lead screw 3003 is threadedly connected to a slider 3005. The surface of the slider 3005 is fixedly connected to a high-voltage generator 3006. The inner wall of the slider 3005 is fixedly connected to a dust collecting electrode 3007. The inner wall of the slider 3005 is also fixedly connected to an ionization electrode 3008. The surface of the slider 3005 is fixedly connected to a wiping pad 3009. The heat dissipation unit 30 also includes a heat pipe 3010.

[0026] The function of the heat dissipation unit 30 is to ensure that the inverter panel 1001 maintains long-term unobstructed heat dissipation channels while dissipating heat efficiently through a mechanism that combines active heat dissipation with automatic dust removal. Specifically, the heat dissipation pipe 3010 serves as the core heat dissipation channel, and its internal space provides a path for air flow, which is connected to the external environment to form a heat dissipation loop; the first motor 3001 is fixed to the surface of the explosion-proof housing 2001 through the mounting bracket 1 3002, and its output shaft drives the screw 3003 to rotate, and the screw 3003 drives the slider 3005 to perform reciprocating linear motion along the slide rail 2 3004 through threaded transmission, and the stroke covers the filter 3013 area of ​​the heat dissipation pipe 3010; the wiping pad 3009 on the surface of the slider 3005 wipes the dust on the surface of the filter 3013 at the air inlet end of the heat dissipation pipe 3010 through physical contact when the slider 3005 moves, thereby realizing mechanical dust removal; at the same time, the high-voltage generator fixed to the slider 3005 The generator 3006 provides high voltage electricity to the dust collecting electrode 3007 and the ionizing electrode 3008, forming an electrostatic field between the two, so that the dust particles in the air are charged and adsorbed by the dust collecting electrode 3007, thereby enhancing the removal effect of fine dust and avoiding clogging of the filter 3013; the above components work together, and when the heat dissipation efficiency of the heat pipe 3010 decreases due to dust accumulation, the first motor 3001 starts to drive the slider 3005 to move, and the filter 3013 is cleaned through the dual effects of physical wiping of the wiping pad 3009 and electrostatic adsorption of the electrode, ensuring smooth air circulation in the heat dissipation channel, and the heat pipe 3010 provides continuous heat dissipation airflow for the inverter panel 1001, so that the heat generated by the equipment during operation can be dissipated in time, avoiding the performance being affected or safety hazards caused by excessive temperature, and ultimately realizing the self-maintenance function of the heat dissipation system and the long-term stable operation of the inverter panel 1001.

[0027] The inner wall of the heat pipe 3010 is fixedly connected to the second mounting frame 3011 , the surface of the second mounting frame 3011 is fixedly connected to the second motor 3012 , the output end of the second motor 3012 is fixedly connected to the fan blade 3014 , and the inner wall of the heat pipe 3010 is fixedly connected to the filter 3013 .

[0028] The second mounting frame 3011 fixed on the inner wall of the heat pipe 3010 is used to support the second motor 3012, so that the second motor 3012 can be stably installed inside the heat pipe 3010. The output end of the second motor 3011 is directly connected to the fan blade 3014. The fan blade 3014 is driven by the motor to rotate at high speed, forming a directional airflow in the heat pipe 3010, accelerating the air flow to take away the heat generated by the inverter panel 1001 during operation, and realizing active forced heat dissipation; the filter 3013 fixed on the inner wall of the heat pipe 3010 is located at the air flow inlet, and its mesh structure can intercept impurities such as dust and particles in the air, preventing external pollutants from entering the interior of the heat pipe 3010 and the surface of the inverter panel 1001, and avoiding dust accumulation. The second mounting bracket 3011, the second motor 3012, the fan blades 3014 and the filter 3013 together constitute the core components of the heat pipe 3010, wherein the second motor 3012 and the fan blades 3014 provide heat dissipation power through mechanical transmission, the filter 3013 achieves dust protection through physical interception, and the second mounting bracket 3011 ensures the position accuracy and structural stability of each component, so that the heat pipe 3010 can not only effectively dissipate heat through the rotation of the fan blades 3014 during operation, but also maintain internal cleanliness through filtering through the filter 3013, thereby ensuring that the inverter panel 1001 works stably in a suitable temperature environment, extending the service life of the equipment and reducing maintenance costs.

[0029] The inner wall of the slider 3005 is slidably connected to the slide rail 2 3004 , the surface of the slide rail 2 3004 is fixedly connected to the explosion-proof shell 2001 , the interior of the high-voltage generator 3006 is electrically connected to the dust collecting electrode 3007 , and the interior of the high-voltage generator 3006 is electrically connected to the ionization electrode 3008 .

[0030] The surface of the second slide rail 3004, which is slidably connected to the inner wall of the slider 3005, is fixedly connected to the explosion-proof housing 2001. Its function is to provide a stable guide support for the reciprocating motion of the slider 3005, ensuring that the slider 3005 can accurately slide along the preset straight line when the first motor 3001 drives the lead screw 3003 to rotate, so as to avoid the wiping pad 3009 being unable to effectively contact the filter 3013 or causing component wear due to movement deviation; and the electrical connection between the internal part of the high-voltage generator 3006 and the dust collecting electrode 3007 and the ionization electrode 3008 is achieved by the high voltage generated by the high-voltage generator 3006 on the two electrodes. An electrostatic field is formed between them, wherein the ionization electrode 3008 charges the dust particles in the air, and the dust collecting electrode 3007 absorbs the charged dust by virtue of the opposite charge, and combined with the physical wiping effect of the wiping pad 3009 on the surface of the slider 3005, a composite cleaning mechanism of "electrostatic adsorption dust removal + mechanical contact cleaning" is formed, which effectively removes tiny particles on the surface of the filter 3013 and in the air, prevents dust from clogging the heat dissipation channel, and ensures that the heat dissipation unit 30 maintains efficient heat dissipation performance during long-term operation. At the same time, the rigid support of the slide rail 2 3004 and the electrical coordination of the electrode ensure the stability and reliability of the self-cleaning function.

[0031] The surface of the heat dissipation pipe 3010 is fixedly connected to the explosion-proof housing 2001 , and the output end of the second motor 3012 passes through the second mounting frame 3011 and is fixedly connected to the fan blade 3014 .

[0032] The purpose of the fixed connection between the surface of the heat pipe 3010 and the explosion-proof housing 2001 is to rigidly combine the heat dissipation unit 30 and the explosion-proof unit 20 to form a unified equipment main structure, ensure that the heat pipe 3010 maintains a stable position during long-term operation, and avoid the displacement caused by vibration or external force affecting the heat dissipation effect and component connection; the output end of the second motor 3012 passes through the second mounting frame 3011 and is fixedly connected to the fan blade 3014, wherein the second mounting frame 3011 is fixed to the inner wall of the heat pipe 3010 as a supporting structure, providing a stable installation foundation for the second motor 3012, and its through design allows the motor output shaft to extend directly into the heat pipe 3010 The internal space enables the second motor 3012 to rotate and drive the fan blades 3014 to rotate at high speed, forming a forced convection airflow in the heat pipe 3010, accelerating the air flow to take away the heat generated by the inverter panel 1001, and realizing the active heat dissipation function. The above connection method not only ensures the overall structural strength of the equipment by fixing the heat pipe 3010 and the explosion-proof housing 2001, but also ensures the effective transmission of heat dissipation power through the mechanical transmission of the motor and the fan blades 3014, so that the heat dissipation unit 30 can work in conjunction with the explosion-proof unit 20, providing continuous and stable heat dissipation support for the inverter while ensuring explosion-proof performance, and avoiding the impact of excessive temperature on the operation reliability of the equipment.

[0033] The surface of the mounting frame 3002 is fixedly connected to the surface of the explosion-proof housing 2001 , and the output end of the first motor 3001 is fixedly connected to the lead screw 3003 .

[0034] The purpose of the fixed connection between the surface of the mounting frame 1 3002 and the surface of the explosion-proof housing 2001 is to provide a rigid mounting base for the first motor 3001, ensuring that it maintains a stable position during operation and preventing the motor displacement caused by vibration or external force from damaging the transmission accuracy; the output end of the first motor 3001 is fixedly connected to the screw 3003, aiming to convert the rotational motion of the motor into axial rotation of the screw 3003. The thread on the surface of the screw 3003 cooperates with the internal thread of the slider 3005, driving the slider 3005 to perform reciprocating linear motion along the second slide rail 3004. The above connection method constitutes the power transmission core of the self-cleaning function of the heat dissipation unit 30 - the mounting frame. The fixed connection between 3002 and the explosion-proof housing 2001 ensures the stability of the power source. The direct transmission between the first motor 3001 and the lead screw 3003 ensures the high efficiency and accuracy of motion transmission, so that the slider 3005 can move according to the preset trajectory, driving the wiping pad 3009 on its surface to physically clean the filter 3013, and making the high-voltage generator 3006, dust collecting electrode 3007, ionization electrode 3008 and other components move synchronously to achieve electrostatic dust removal. Finally, through the coordination of mechanical transmission and electrical functions, the regular dust removal maintenance of the heat dissipation unit 30 is completed, ensuring that the heat dissipation channel is unobstructed for a long time, and ensuring the heat dissipation effect and operation stability of the inverter panel 1001.

[0035] Working principle: When the inverter panel 1001 explodes, the explosion pressure is transmitted to the transfer plate 2011 fixed to it. The transfer plate 2011 shrinks under the force and transmits the force to the rotating seat 2006 through the rotating frame 2007. The compression plate 2003 is then driven by the slide rod 2005 to squeeze the explosion-proof layer 2002. Since the contact area between the compression plate 2003 and the explosion-proof layer 2002 is large, the explosion-proof layer 2002 can be subjected to more uniform force, thereby achieving the initial dispersion of the explosion energy. If the impact force of the explosion continues, the rotating frame 2007 will slide along the slide rail 1 2009, compressing the spring 2010 mounted on the slide rail 1 2009. The spring 2010 further absorbs energy through elastic deformation to form a secondary buffer. Finally, the explosion energy gradually decays through the process of "structural transmission-rigid extrusion-elastic buffering", and the second motor 3012 inside the heat pipe 3010 drives the fan blades 3014 to rotate, accelerating the air flow. Air flows along the inner wall of the heat pipe 3010 and across the surface of the inverter panel 1001, removing internal heat through forced convection. A filter 3013 is installed at the air inlet end of the heat pipe 3010 to intercept dust particles. The filter 3013 is connected to the inner wall of the heat pipe 3010 with a snap-fit ​​connection for easy maintenance. After passing through the filter 3013, a portion of the airflow is driven by the fan blades 3014 and flows through the inverter panel 1001. The remaining portion flows through the diversion holes in the explosion-proof housing 2001 to indirectly cool the back of the explosion-proof layer 2002. In addition, when the pressure difference between the inlet and outlet of the heat pipe 3010 reaches a certain value, the self-cleaning program is triggered, and the first motor 3001 drives the screw 3003 to rotate. The screw 3003 is transmitted through the thread to make the slider 3005 move back and forth along the slide rail 2 3004, and the stroke covers the entire surface of the filter 3013. During the movement, the wiping pad 3009 at the front end of the slider 3005 removes the accumulated dust on the surface of the filter 3013 through physical friction. At the same time, the high-voltage generator 3006 generates an electric field between the dust collecting electrode 3007 and the ionization electrode 3008, so that the dust particles in the air are charged and adsorbed. After cleaning is completed, the slider 3005 is reset, the high-voltage generator 3006 is powered off, and the system resumes normal heat dissipation.

[0036] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and alterations may be made to the embodiments without departing from the principles and spirit thereof, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof inverter, comprising an explosion-proof inverter (1), characterized in that: The explosion-proof inverter (1) comprises an inverter unit (10), an explosion-proof unit (20) is provided on the surface of the inverter unit (10), and a heat dissipation unit (30) is provided on the surface of the explosion-proof unit (20); The explosion-proof unit (20) is used to add an explosion-proof structure to the inverter. The explosion-proof unit (20) comprises an explosion-proof housing (2001). The inner wall of the explosion-proof housing (2001) is fixedly connected to an explosion-proof layer (2002). The inner wall of the explosion-proof housing (2001) is also fixedly connected to a partition plate (2004). A sliding groove is provided on the surface of the partition plate (2004). The inner wall of the sliding groove is slidably connected to a sliding rod (2005). One end of the sliding rod (2005) close to the explosion-proof layer (2002) is fixedly connected to a compression plate (2003). One end of (2005) away from the compression plate (2003) is fixedly connected to a rotating seat (2006), the inner wall of the rotating seat (2006) is rotatably connected to a rotating frame (2007), the inner wall of one end of the rotating frame (2007) away from the rotating seat (2006) is slidably connected to a slide rail 1 (2009), the surface of the slide rail 1 (2009) is slidably connected to a spring (210), both ends of the slide rail 1 (2009) are fixedly connected to a mounting seat (2008), and the surface of the mounting seat (2008) is fixedly connected to a transfer plate (211).

2. The explosion-proof inverter according to claim 1, characterized in that: The inverter unit (10) comprises an inverter panel (1001), a prompt plate (1003) is fixedly connected to the surface of the inverter panel (1001), a communication interface (1002) is fixedly connected to the surface of the inverter panel (1001), a socket (1004) is fixedly connected to the surface of the inverter panel (1001), and an inverter body (1005) is fixedly connected to the surface of the inverter panel (1001).

3. The explosion-proof inverter according to claim 2, characterized in that: The surface of the inverter panel (1001) is fixedly connected to the surface of the transmission plate (2011), and the inverter body (1005) penetrates the explosion-proof housing (2001) and extends to the outside thereof.

4. The explosion-proof inverter according to claim 1, characterized in that: The heat dissipation unit (30) is used to dissipate heat from the inverter panel (1001) and can regularly clean dust covered on its surface. The heat dissipation unit (30) comprises a first motor (3001), the surface of the first motor (3001) is fixedly connected to a mounting frame 1 (3002), the inner wall of the mounting frame 1 (3002) is rotatably connected to a lead screw (3003), the surface of the lead screw (3003) is threadedly connected to a slider (3005), the surface of the slider (3005) is fixedly connected to a high-voltage generator (3006), the inner wall of the slider (3005) is fixedly connected to a dust collecting electrode (3007), the inner wall of the slider (3005) is also fixedly connected to an ionizing electrode (3008), and the surface of the slider (3005) is fixedly connected to a wiping pad (3009). The heat dissipation unit (3001) further comprises a heat dissipation pipe (3010).

5. The explosion-proof inverter according to claim 4, characterized in that: The inner wall of the heat dissipation pipe (3010) is fixedly connected to a second mounting frame (3011), the surface of the second mounting frame (3011) is fixedly connected to a second motor (3012), the output end of the second motor (3012) is fixedly connected to a fan blade (3014), and the inner wall of the heat dissipation pipe (3010) is fixedly connected to a filter (3013).

6. The explosion-proof inverter according to claim 4, characterized in that: The inner wall of the slider (3005) is slidably connected to the second slide rail (3004), the surface of the second slide rail (3004) is fixedly connected to the explosion-proof shell (2001), the interior of the high-voltage generator (3006) is electrically connected to the dust collecting electrode (3007), and the interior of the high-voltage generator (3006) is electrically connected to the ionization electrode (3008).

7. The explosion-proof inverter according to claim 5, characterized in that: The surface of the heat dissipation pipe (3010) is fixedly connected to the explosion-proof housing (2001), and the output end of the second motor (3012) passes through the second mounting frame (3011) and is fixedly connected to the fan blade (3014).

8. The explosion-proof inverter according to claim 4, characterized in that: The surface of the first mounting frame (3002) is fixedly connected to the surface of the explosion-proof housing (2001), and the output end of the first motor (3001) is fixedly connected to the lead screw (3003).

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