Explosion-proof inverter

Abstract

The application relates to the technical field of inverters, and discloses an explosion-proof inverter, which comprises an explosion-proof inverter, the explosion-proof inverter comprises an inverting unit, the surface of the inverting unit is provided with an explosion-proof unit, and the surface of the explosion-proof unit is provided with a heat dissipation unit. The explosion-proof inverter, the explosion-proof inverter is provided with a multistage linkage type explosion-proof structure, a self-cleaning heat dissipation system combining electrostatic adsorption and mechanical wiping, and a modular collaborative optimization design, the traditional limitations are broken through, compared with the prior art, the force of the explosion-proof shell is more uniform, the deformation amount is reduced, the heat dissipation efficiency retention rate is significantly improved, the maintenance time is greatly shortened, the environmental adaptability is enhanced, the problems of explosion-proof deficiency, heat dissipation attenuation and complex maintenance of the traditional explosion-proof inverter are effectively solved, and a new design paradigm is provided.

Description

Technical Field

[0001] This invention relates to the field of inverter technology, specifically to explosion-proof inverters. Background Technology

[0002] In industrial sectors such as petrochemicals, mining, and flammable and explosive gas treatment, inverters are the core equipment for power conversion, and their operational safety and stability are of paramount importance. Due to the presence of large amounts of flammable gases, dust, or vapors in these scenarios, electrical sparks or high temperatures generated by faulty internal components of the inverter may cause an explosion. At the same time, the heat dissipation requirements during equipment operation and the filter clogging caused by the dusty environment further exacerbate safety risks and maintenance costs.

[0003] Traditional explosion-proof inverters typically employ a single-layer explosion-proof enclosure with a simple buffer structure. They rely solely on the rigidity of the enclosure material to withstand explosive impacts, presenting significant drawbacks. Firstly, the concentrated impact force of an explosion acts on a localized area of ​​the enclosure, easily leading to cracking of the explosion-proof layer or failure of the buffer structure, thus failing to achieve gradual energy attenuation. Secondly, the cooling system often relies on fixed filters and passive heat dissipation designs. After long-term operation, dust accumulation severely impacts cooling efficiency, requiring frequent shutdowns for manual cleaning. This not only increases maintenance costs but may also cause overheating failures due to delayed cleaning, creating safety hazards. Furthermore, in existing technologies, the explosion-proof and cooling structures are independent, lacking coordinated design. This results in bulky equipment with low functional integration, making it difficult to meet the compact and intelligent application requirements of high-risk environments. With increasing industrial automation, higher demands are placed on the safety, cooling efficiency, and self-maintenance capabilities of explosion-proof inverters. Existing solutions, due to structural design limitations, cannot simultaneously meet the multiple performance requirements under complex operating conditions. Therefore, there is an urgent need for an explosion-proof inverter. Summary of the Invention

[0004] The purpose of this invention is to provide an explosion-proof inverter to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an explosion-proof inverter, comprising an explosion-proof inverter, wherein the explosion-proof inverter includes an inverter unit, an explosion-proof unit is disposed on the surface of the inverter unit, and a heat dissipation unit is disposed 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, an explosion-proof layer fixedly connected to the inner wall of the explosion-proof shell, and a partition plate fixedly connected to the inner wall of the explosion-proof shell. A sliding groove is formed on the surface of the partition plate, and a sliding rod is slidably connected to the inner wall of the sliding groove. A compression plate is fixedly connected to the end of the sliding rod near the explosion-proof layer, and a rotating seat is fixedly connected to the end of the sliding rod away from the compression plate. A rotating frame is rotatably connected to the inner wall of the rotating frame, and a first slide rail is slidably connected to the inner wall of the end of the rotating frame away from the rotating seat. A spring is slidably connected to the surface of the first slide rail, and mounting seats are fixedly connected to both ends of the first slide rail. A transfer plate is fixedly connected to the surface of the mounting seat.

[0006] The inverter unit includes an inverter panel, a prompt board 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 the 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 shell and extends to its exterior.

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

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

[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 collection 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 shell, and the output end of the second motor is fixedly connected to the fan blade through the mounting bracket.

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

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are: First, this invention, through a multi-level linkage explosion-proof structure design, overcomes the limitations of traditional explosion-proof inverters' single rigid protection, significantly improving the absorption efficiency of explosive impact energy and the stability of the casing structure. In existing technologies, explosion-proof inverters typically rely on a single-layer explosion-proof casing or a simple buffer structure. During an explosion, the pressure is concentrated in a localized area, easily leading to casing cracking or failure of the explosion-proof layer. This invention innovatively designs a dual explosion-proof mechanism of "rigid compression + elastic buffer." When the inverter panel explodes, the pressure first pushes the rotating frame to rotate around the rotating seat through the transmission plate, causing the sliding rod to move along the partition plate. The linear sliding of the chute allows the compression plate to evenly compress the explosion-proof layer, converting the explosive impact force into a surface contact load on the explosion-proof layer. This avoids the problem of localized stress overload in traditional structures. If the pressure continues to increase, the rotating frame slides along the slide rail to compress the spring, further absorbing energy through the elastic deformation of the spring. This forms a three-stage energy attenuation system of "structural guidance and force dissipation - rigid material energy consumption - elastic element buffering". Compared with existing technologies, this design improves the uniformity of stress on the explosion-proof shell by more than 100%, reduces the deformation of the shell under the same explosive impact, and effectively extends the safe service life of the equipment in high-risk environments.

[0014] Secondly, this invention integrates a self-cleaning heat dissipation system combining electrostatic adsorption and mechanical wiping, solving the efficiency degradation problem caused by dust accumulation in traditional heat dissipation structures and achieving long-term stable heat dissipation performance. Existing inverter heat dissipation devices mostly adopt a passive heat dissipation mode with fixed filters and fans. After long-term operation, the filters are easily clogged by dust, requiring regular manual disassembly and cleaning, resulting in high maintenance costs and downtime affecting production. The heat dissipation unit of this 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 surface of the slider physically cleans the filter. At the same time, the high-voltage generator generates an electrostatic field between the dust collection electrode and the ionization electrode, causing dust particles in the air to become charged and adsorb onto the surface of the wiping pad. This composite dust removal mechanism can remove dust particles of various sizes from 0.1 to 100 μm, improving dust removal efficiency compared to traditional filters. It can achieve automatic cleaning cycles every hour without manual intervention. Combined with the active heat dissipation of the fan blades driven by the second motor, the heat dissipation efficiency of the inverter in dusty environments is improved, significantly reducing the risk of equipment failure due to poor heat dissipation.

[0015] Third, this invention achieves a system-level improvement in explosion-proof performance, heat dissipation efficiency, and equipment maintainability through modular structural design and synergistic optimization of functional units. Existing explosion-proof inverters often suffer from design conflicts between the explosion-proof structure and the heat dissipation structure, resulting in bulky equipment or functional failures. Furthermore, the integration of components is low, requiring complete disassembly for maintenance, which is time-consuming and labor-intensive. This invention adopts a layered structural layout, with the inverter body of the inverter unit directly connected to the outside through the explosion-proof shell. This ensures reliable electrical connections while avoiding the weak points in the explosion-proof seals of wires in traditional structures. The slide rail of the heat dissipation unit is rigidly connected to the explosion-proof shell, ensuring the smooth operation of the slide rail. The standardized interface design of mounting bracket 1 and mounting bracket 2 ensures stable operation, allowing for independent disassembly and replacement of the heat dissipation module, thus shortening maintenance time compared to traditional equipment. Furthermore, the sliding fit between the rotating frame and slide rail 1 in the explosion-proof unit, and the threaded transmission between the lead screw and slider in the heat dissipation unit, all utilize wear-resistant materials and precision machining processes, enabling the equipment to operate stably in harsh conditions with a temperature range of -40℃ to 85℃ and a vibration amplitude of ≤5g. This enhances environmental adaptability compared to existing technologies. This design concept, which combines functional requirements with structural mechanics and reliability engineering, provides a new paradigm for the integrated design of electrical equipment in high-risk environments. Attached Figure Description

[0016] Figure 1 This 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 This is a schematic diagram of the overall structure of the present invention from the rear. Figure 4 This is a schematic diagram of the overall structure of the present invention from the rear. Figure 5 This is a partial structural diagram of the present invention; Figure 6 This 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. Indication panel; 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 rod; 2006. Rotating seat; 2007. Rotating frame; 2008. Mounting base; 2009. Slide rail one; 2010. Spring; 2011. Transfer plate; 30. Heat dissipation unit; 3001. First motor; 3002. Mounting bracket one; 3003. Lead screw; 3004. Slide rail two; 3005. Slider; 3006. High voltage generator; 3007. Dust collection electrode; 3008. Ionization electrode; 3009. Wiping pad; 3010. Heat dissipation pipe; 3011. Mounting bracket two; 3012. Second motor; 3013. Filter screen; 3014. Fan blade. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort 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 including an inverter unit 10, an explosion-proof unit 20 disposed on the surface of the inverter unit 10, and a heat dissipation unit 30 disposed 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, an explosion-proof layer 2002 fixedly connected to the inner wall of the explosion-proof housing 2001, and a partition plate 2004 fixedly connected to the inner wall of the explosion-proof housing 2001. A sliding groove is formed on the surface of the partition plate 2004, and a sliding rod 2005 is slidably connected to the inner wall of the sliding groove. A compression plate 2003 is fixedly connected to one end of the sliding rod 2005 near the explosion-proof layer 2002. 005 is fixedly connected to a rotating seat 2006 at one end away from the compression plate 2003. A rotating frame 2007 is rotatably connected to the inner wall of the rotating seat 2006. A slide rail 2009 is slidably connected to the inner wall of the rotating frame 2007 away from the rotating seat 2006. A spring 2010 is slidably connected to the surface of the slide rail 2009. Mounting seats 2008 are fixedly connected to both ends of the slide rail 2009. A transfer plate 2011 is fixedly connected to the surface of the mounting seat 2008.

[0020] The explosion-proof unit 20 functions to construct a multi-layer explosion-proof protection system for the inverter through a specific structural design. The explosion-proof housing 2001 serves as the basic support structure, and the explosion-proof layer 2002 fixed to its inner wall can directly withstand the initial impact of an explosion and provide basic explosion-proof capability. The partition plate 2004 is fixed to the inner wall of the explosion-proof housing 2001, and the sliding groove on its surface provides sliding guidance for the slide rod 2005, ensuring that the slide rod 2005 can only move linearly in a preset direction and ensuring a stable force transmission path. One end of the slide rod 2005 is connected to the compression plate 2003, which contacts 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, which is fixedly connected to the mounting base 2008. The transmission plate 2011 transmits the force to the rotating frame 2007. The rotating frame 2007 rotates around the rotating seat 2006 and pushes the slide rod 2005 to slide in the slide groove, thereby driving the compression plate 2003 to uniformly compress the explosion-proof layer 2002. By expanding the force-bearing area of ​​the explosion-proof layer 2002, local stress concentration is avoided, and the initial dispersion and absorption of explosion energy is achieved. 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 2009 and compress the spring 2010 fitted on the surface of the slide rail 2009. The elastic deformation of the spring 2010 is used to further absorb the remaining energy, forming a multi-level explosion-proof mechanism of "rigid compression to disperse pressure - elastic element to buffer and absorb energy". Finally, through the synergistic effect of each component, the impact force generated by the explosion is gradually attenuated, effectively protecting the inverter panel 1001 from the damage of the explosion impact 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 fixedly connected to the surface of the inverter panel 1001, a communication interface 1002 fixedly connected to the surface of the inverter panel 1001, a socket 1004 fixedly connected to the surface of the inverter panel 1001, and an inverter body 1005 fixedly connected to the surface of the inverter panel 1001.

[0022] The inverter unit 10 carries the core electrical functions of the inverter and provides a human-machine interface and electrical connection interface. The inverter panel 1001, as the core carrier, integrates a power conversion circuit that converts DC power to AC power, and is the main body for realizing the inverter function. Its surface-mounted communication interface 1002 is used to control the inverter's start and stop, connecting or disconnecting the internal circuit via mechanical triggering to achieve manual control of the equipment's operating status. The indicator panel 1003 displays the inverter's operating parameters in real time, such as voltage, current, frequency, and operating mode, providing users with an intuitive status monitoring interface for easy real-time monitoring of equipment operation. The socket 1004 is used to connect external input / output devices or sensors, expanding the equipment's functions, such as connecting remote control modules and data acquisition devices, enhancing the equipment's versatility and flexibility. The inverter body 10... 05 is the electrical connection channel between the inverter and the external power supply and load. Its surface is fixed to the inverter panel 1001 and extends through the explosion-proof housing 2001 to the outside. The sealed design ensures that the electrical connection within the explosion-proof housing 2001 is both safe and reliable and meets explosion-proof requirements. It allows the DC power from the external power supply to be input to the inverter panel 1001, while simultaneously outputting the converted AC power to the load. All of the above components are fixed to the surface of the inverter panel 1001, forming a centralized functional layout. This facilitates user operation and maintenance. Through the through-hole design of the inverter body 1005 and its cooperation with the explosion-proof unit 20, the electrical connection functionality is guaranteed while ensuring the structural integrity and safety of the entire inverter within the explosion-proof housing 2001. This makes 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 penetrates the explosion-proof housing 2001 and extends to its exterior.

[0024] The fixed connection between the surface of the inverter panel 1001 and the surface of the transmission plate 2011 serves to establish a direct transmission path for the explosive impact force. When an abnormal energy release occurs inside the inverter panel 1001, the impact force can be rapidly transmitted to the transmission plate 2011 through the rigid connection between the two, thereby triggering the multi-level buffering mechanism of the explosion-proof unit 20. The transmission plate 2011, as the initial interface for force transmission, ensures lossless transmission of explosive energy through its fixed connection with the inverter panel 1001, enabling explosion-proof components such as the rotating frame 2007, slide bar 2005, and compression plate 2003 to respond synchronously. By compressing the explosion-proof layer 2002 and the compression spring 2010, the impact force is gradually attenuated, avoiding the risk of explosion-proof failure due to loose connections. The inverter body 1005 penetrates the explosion-proof shell 2001 and extends to the outside. While ensuring the sealing performance of the explosion-proof enclosure 2001, the functionality of electrical connection is achieved. The inverter body 1005 serves as the power transmission channel between the inverter panel 1001 and the external power supply and load. Its through-structure, through sealing components such as explosion-proof sealing rings and glands, fits tightly with the inner wall of the explosion-proof enclosure 2001. This ensures that external flammable and explosive gases cannot penetrate into the enclosure, and that the pressure generated by an internal explosion will not leak from the inverter body 1005. At the same time, it meets the requirements for the installation of wires or cables, achieving a balance between explosion-proof performance and electrical connection reliability. This avoids the safety hazards caused by improper design of the inverter body 1005 in traditional explosion-proof equipment. The inverter can not only perform normal power input and output in high-risk environments, but also ensure the safe operation of the equipment through the overall sealing performance and structural strength of the explosion-proof enclosure 2001.

[0025] The heat dissipation unit 30 is used to dissipate heat from the inverter panel 1001 and can periodically clean the dust covering its surface. The heat dissipation unit 30 includes a first motor 3001, a mounting bracket 3002 fixedly connected to the surface of the first motor 3001, a lead screw 3003 rotatably connected to the inner wall of the mounting bracket 3002, a slider 3005 threadedly connected to the surface of the lead screw 3003, a high voltage generator 3006 fixedly connected to the surface of the slider 3005, a dust collection electrode 3007 fixedly connected to the inner wall of the slider 3005, an ionization electrode 3008 fixedly connected to the inner wall of the slider 3005, and a wiping pad 3009 fixedly connected to the surface of the slider 3005. The heat dissipation unit 30 also includes a heat dissipation 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 achieving efficient heat dissipation through a mechanism combining active heat dissipation and automatic dust removal. Specifically: the heat pipe 3010 serves as the core heat dissipation channel, and its internal space provides a path for airflow, connecting with the external environment to form a heat dissipation circuit; the first motor 3001 is fixed to the surface of the explosion-proof housing 2001 through the mounting bracket 3002, and its output shaft drives the lead screw 3003 to rotate. The lead screw 3003 causes the slider 3005 to reciprocate linearly along the slide rail 3004 through thread transmission, and the stroke covers the filter screen 3013 area of ​​the heat pipe 3010; when the wiping pad 3009 on the surface of the slider 3005 moves with the slider 3005, it wipes the dust on the surface of the filter screen 3013 at the air inlet end of the heat pipe 3010 through physical contact, achieving mechanical dust removal; at the same time, the high-voltage generator fixed to the slider 3005... The generator 3006 provides high voltage to the dust collection electrode 3007 and the ionization electrode 3008, forming an electrostatic field between them. This causes dust particles in the air to become charged and be attracted by the dust collection electrode 3007, enhancing the removal effect of fine dust and preventing the filter 3013 from becoming clogged. The above components work together. 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. The filter 3013 is cleaned by the physical wiping of the wiping pad 3009 and the electrostatic adsorption of the electrode, ensuring smooth airflow in the heat dissipation channel. Meanwhile, the heat pipe 3010 provides a continuous cooling airflow to the inverter panel 1001, allowing the heat generated during the operation of the equipment to be dissipated in a timely manner, avoiding performance impact or safety hazards caused by excessive temperature. Ultimately, this achieves the self-maintenance function of the heat dissipation system and the long-term stable operation of the inverter panel 1001.

[0027] A mounting bracket 3011 is fixedly connected to the inner wall of the heat dissipation pipe 3010. A second motor 3012 is fixedly connected to the surface of the mounting bracket 3011. A fan blade 3014 is fixedly connected to the output end of the second motor 3012. A filter screen 3013 is fixedly connected to the inner wall of the heat dissipation pipe 3010.

[0028] The mounting bracket 3011, fixed to the inner wall of the heat pipe 3010, supports the second motor 3012, ensuring its stable installation inside the heat pipe 3010. Its output end is directly connected to the fan blade 3014, driving the fan blade 3014 to rotate at high speed. This creates a directional airflow within the heat pipe 3010, accelerating airflow to remove heat generated during inverter panel 1001 operation, achieving active forced cooling. The filter 3013, fixed to the inner wall of the heat pipe 3010, is located at the airflow inlet. Its mesh structure intercepts dust, particles, and other impurities in the air, preventing external contaminants from entering the heat pipe 3010 and the surface of the inverter panel 1001, thus avoiding dust accumulation. Affecting heat dissipation efficiency or causing electrical failure; Mounting bracket 2 3011, second motor 3012, fan blade 3014 and filter screen 3013 together constitute the core components of heat pipe 3010. Among them, second motor 3012 and fan blade 3014 provide heat dissipation power through mechanical transmission, filter screen 3013 achieves dust protection through physical interception, and mounting bracket 2 3011 ensures the positional accuracy and structural stability of each component, so that heat pipe 3010 can effectively dissipate heat through the rotation of fan blade 3014 and maintain internal cleanliness through filtration by filter screen 3013 during operation, thereby ensuring that inverter panel 1001 works stably in a suitable temperature environment, extending equipment service life and reducing maintenance costs.

[0029] The inner wall of the slider 3005 is slidably connected to the slide rail 3004. The surface of the 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 collection electrode 3007. The interior of the high-voltage generator 3006 is electrically connected to the ionization electrode 3008.

[0030] The 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 stable guiding support for the reciprocating motion of the slider 3005, ensuring that the slider 3005 can slide precisely along a preset straight trajectory when the first motor 3001 drives the lead screw 3003 to rotate, avoiding the wiping pad 3009 from failing to effectively contact the filter screen 3013 or causing component wear due to motion deviation. The electrical connection between the high-voltage generator 3006 and the dust collection electrode 3007 and ionization electrode 3008 is achieved through the high voltage generated by the high-voltage generator 3006 on the two electrodes. An electrostatic field is formed between them, where the ionization electrode 3008 charges the dust particles in the air, and the dust collection electrode 3007 adsorbs the charged dust by means of opposite charges. Combined with the physical wiping action of the wiping pad 3009 on the surface of the slider 3005, a composite cleaning mechanism of "electrostatic adsorption dust removal + mechanical contact dust removal" is formed. This effectively removes tiny particles from the surface of the filter screen 3013 and the air, prevents dust from clogging the heat dissipation channel, and ensures that the heat dissipation unit 30 maintains high-efficiency heat dissipation performance during long-term operation. At the same time, the rigid support of the slide rail 3004 and the electrical coordination of the electrodes ensure the stability and reliability of the self-cleaning function.

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

[0032] The function of the heat sink 3010 being fixedly connected to the explosion-proof housing 2001 is to rigidly combine the heat sink unit 30 and the explosion-proof unit 20, forming a unified main structure of the equipment. This ensures that the heat sink 3010 maintains a stable position during long-term operation, preventing displacement caused by vibration or external forces from affecting the heat dissipation effect and component connections. The output end of the second motor 3012 is fixedly connected to the fan blade 3014 through the second mounting bracket 3011. The second mounting bracket 3011 serves as a support structure fixed to the inner wall of the heat sink 3010, providing a stable mounting base for the second motor 3012. Its through-hole design allows the motor output shaft to extend directly into the heat sink 3010. The space allows the second motor 3012 to drive the fan blades 3014 to rotate at high speed, forming a forced convection airflow within the heat pipe 3010. This accelerates airflow to remove the heat generated by the inverter panel 1001, achieving active heat dissipation. The connection method ensures the overall structural strength of the equipment by fixing the heat pipe 3010 to the explosion-proof housing 2001, and ensures the effective transmission of heat dissipation power through the mechanical transmission between the motor and the fan blades 3014. This allows the heat dissipation unit 30 to work in conjunction with the explosion-proof unit 20, providing continuous and stable heat dissipation support for the inverter while ensuring explosion-proof performance, thus preventing the equipment's operational reliability from being affected by excessively high temperatures.

[0033] The surface of mounting bracket 3002 is fixedly connected to the surface of 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 mounting bracket 3002, which is fixedly connected to the surface of the explosion-proof housing 2001, is to provide a rigid mounting base for the first motor 3001, ensuring its stable position during operation and preventing damage to transmission accuracy caused by motor displacement due to vibration or external forces. The output end of the first motor 3001 is fixedly connected to the lead screw 3003, which converts the rotational motion of the motor into the axial rotation of the lead screw 3003. Through the engagement of the thread on the surface of the lead screw 3003 with the internal thread of the slider 3005, the slider 3005 is driven to perform reciprocating linear motion along the 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 bracket. The fixed connection between the first motor 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, enabling the slider 3005 to move according to the preset trajectory. This drives the wiping pad 3009 on its surface to physically clean the filter screen 3013, and causes the high voltage generator 3006, dust collection electrode 3007, ionization electrode 3008 and other components to operate synchronously to achieve electrostatic dust removal. Finally, through the coordination of mechanical transmission and electrical functions, the regular dust removal and maintenance of the heat dissipation unit 30 is completed, ensuring that the heat dissipation channel is unobstructed for a long time and guaranteeing the heat dissipation effect and operational stability of the inverter panel 1001.

[0035] Working principle: When the inverter panel 1001 explodes, the explosion pressure is transmitted to the transmission plate 2011 fixedly connected to it. The transmission plate 2011 contracts under force, and the force is transmitted to the rotating seat 2006 through the rotating frame 2007. Then, the slide rod 2005 drives the compression plate 2003 to compress 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 force more evenly, realizing the initial dispersion of explosion energy. If the explosion impact force continues, the rotating frame 2007 will slide along the slide rail 2009, compressing the spring 2010 fitted on the slide rail 2009. The spring 2010 further absorbs energy through elastic deformation, forming a secondary buffer. Finally, the explosion energy gradually decays through the process of "structural transmission - rigid compression - elastic buffering". In addition, the second motor 3012 inside the heat sink 3010 drives the fan blade 3014 to rotate, accelerating the air flow. Airflow follows the inner wall of the heat sink 3010, flows over the surface of the inverter panel 1001, and removes internal heat through forced convection. A filter 3013 is installed at the air inlet of the heat sink 3010 to intercept dust particles. The filter 3013 is snap-fitted to the inner wall of the heat sink 3010 for easy maintenance. After passing through the filter 3013, part of the airflow flows over the inverter panel 1001 driven by the fan blades 3014, while the other part indirectly cools the back of the explosion-proof layer 2002 through the guide holes on the explosion-proof housing 2001. In addition, when the pressure difference between the inlet and outlet of the heat dissipation pipe 3010 reaches a certain value, the self-cleaning program is triggered. The first motor 3001 drives the lead screw 3003 to rotate. The lead screw 3003, through threaded transmission, causes the slider 3005 to reciprocate along the slide rail 3004. The stroke covers the entire surface of the filter screen 3013. During the movement, the wiping pad 3009 at the front end of the slider 3005 removes the dust accumulated on the surface of the filter screen 3013 through physical friction. At the same time, the high-voltage generator 3006 generates an electric field between the dust collection electrode 3007 and the ionization electrode 3008, causing the dust particles in the air to become charged and be adsorbed. After cleaning is completed, the slider 3005 resets, the high-voltage generator 3006 is de-energized, and the system resumes normal heat dissipation.

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

Claims

1. An explosion-proof inverter, characterized by: 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 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). 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), an explosion-proof layer (2002) is fixedly connected to the inner wall of the explosion-proof housing (2001), and a partition plate (2004) is also fixedly connected to the inner wall of the explosion-proof housing (2001). The partition plate (2004) is located between the explosion-proof layer (2002) and the inverter body (1005). A sliding groove is provided on the surface of the partition plate (2004), and a sliding rod (2005) is slidably connected to the inner wall of the sliding groove. A compression plate (2003) is fixedly connected to one end of the sliding rod (2005) near the explosion-proof layer (2002). A rotating seat (2006) is fixedly connected to one end of the slide rod (2005) away from the compression plate (2003). A rotating frame (2007) is rotatably connected to the inner wall of the rotating seat (2006). A slide rail (2009) is slidably connected to the inner wall of the rotating frame (2007) away from the rotating seat (2006). A spring (2010) is slidably connected to the surface of the slide rail (2009). Mounting seats (2008) are fixedly connected to both ends of the slide rail (2009). A transmission plate (2011) is fixedly connected to the surface of the mounting seat (2008). The surface of the inverter panel (1001) is fixedly connected to the surface of the transmission plate (2011).

2. The explosion-proof inverter according to claim 1, characterized in that: The inverter body (1005) penetrates the explosion-proof enclosure (2001) and extends to its exterior.

3. 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 periodically clean the dust covering its surface. The heat dissipation unit (30) includes a first motor (3001), a mounting bracket (3002) is fixedly connected to the surface of the first motor (3001), a lead screw (3003) is rotatably connected to the inner wall of the mounting bracket (3002), a slider (3005) is threadedly connected to the surface of the lead screw (3003), a high voltage generator (3006) is fixedly connected to the surface of the slider (3005), a dust collection electrode (3007) is fixedly connected to the inner wall of the slider (3005), an ionization electrode (3008) is also fixedly connected to the inner wall of the slider (3005), and a wiping pad (3009) is fixedly connected to the surface of the slider (3005). The heat dissipation unit (30) also includes a heat dissipation pipe (3010).

4. The explosion-proof inverter according to claim 3, characterized in that: The inner wall of the heat dissipation pipe (3010) is fixedly connected to the second mounting bracket (3011), the surface of the second mounting bracket (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 dissipation pipe (3010) is fixedly connected to the filter screen (3013).

5. The explosion-proof inverter according to claim 3, characterized in that: The inner wall of the slider (3005) is slidably connected to the slide rail two (3004), the surface of the slide rail two (3004) is fixedly connected to the explosion-proof shell (2001), the interior of the high voltage generator (3006) is electrically connected to the dust collection electrode (3007), and the interior of the high voltage generator (3006) is electrically connected to the ionization electrode (3008).

6. The explosion-proof inverter according to claim 4, characterized in that: The surface of the heat dissipation pipe (3010) is fixedly connected to the explosion-proof shell (2001), and the output end of the second motor (3012) is fixedly connected to the fan blade (3014) through the mounting bracket (3011).

7. The explosion-proof inverter according to claim 3, characterized in that: The surface of the mounting bracket (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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