A portable partial discharge detector

Abstract

The application belongs to the technical field of discharge detectors, and particularly relates to a portable partial discharge detector, which comprises a partial discharge detector main body and a plurality of cooling fans, the partial discharge detector main body is uniformly provided with a plurality of rows of cooling fins in the circumferential direction, adjacent cooling fins form a cooling air duct, the plurality of cooling fans are uniformly distributed along the circumferential direction of the partial discharge detector main body, and the air outlet end of each cooling fan is aligned with a row of cooling fins, and the partial discharge detector main body is provided with a heat exchange efficiency maintaining assembly. The heat exchange efficiency maintaining assembly can automatically remove dust on the surface of the cooling fins, effectively prevent dust from blocking the cooling air duct, ensure the high efficiency of forced convection between the cooling fan and the cooling fin, and significantly improve the stability and heat dissipation reliability of long-term operation of the equipment.

Description

Technical Field

[0001] This invention belongs to the field of discharge detection technology, specifically a portable partial discharge detector. Background Technology

[0002] Partial discharge detectors are instruments used to detect partial discharge phenomena in high-voltage electrical equipment. They employ advanced anti-interference components and unique gate display circuits, and have advantages such as high sensitivity, large dynamic range of amplifier system, wide range of test samples, and simple operation. They are suitable for type and factory testing of high-voltage products, new product development testing, and quantitative testing of partial discharge in high-voltage electrical equipment such as motors, transformers, and cables.

[0003] In the prior art, partial discharge detectors generate heat during use. To prevent overheating from affecting normal operation, heat dissipation fins and cooling fans are usually installed on the detector, and heat dissipation is achieved through the cooperation of the two.

[0004] However, after prolonged use, dust tends to accumulate on the surface of the heatsink fins. Since the cooling fan and the heatsink fins work together, dust accumulates continuously in the gaps between the fins, gradually blocking the originally designed airflow channels. This directly leads to a reduction in the effective ventilation area and an increase in airflow resistance. Even if the cooling fan is operating normally, the effective cooling airflow through the fins will decrease significantly, thus severely weakening the forced convection cooling effect. Summary of the Invention

[0005] To overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a portable partial discharge detector.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a portable partial discharge detector, including a partial discharge detector body and multiple cooling fans. Multiple rows of heat dissipation fins are evenly arranged along the circumference of the partial discharge detector body, and adjacent heat dissipation fins form a heat dissipation air channel. Multiple cooling fans are evenly distributed along the circumference of the partial discharge detector body, and the air outlet of each cooling fan is aligned with a row of heat dissipation fins. The partial discharge detector body is provided with a heat exchange efficiency maintenance component. The heat exchange efficiency maintenance component includes multiple baffles evenly distributed around the circumference of the partial discharge detector body, with each baffle abutting the edge of a row of heat dissipation fins. Multiple dust scraping blocks are fixedly connected to the baffles, each dust scraping block being adapted to the specifications of the heat dissipation ducts and abutting the inner wall of one of the heat dissipation ducts. A dust collection shell is fixedly fitted onto the partial discharge detector body, with multiple sets of through holes aligned with multiple heat dissipation ducts. A collection cylinder is detachably mounted at the bottom of the dust collection shell. The inner cavity of the dust collection shell has a pusher block 1 that can move along its inner wall, with pusher blocks 2 slidably inserted on both sides of the pusher block 1. The dust scraping blocks move along the surface of the heat dissipation fins, pushing dust from the heat dissipation ducts into the dust collection shell. Pusher blocks 1 and 2 move along the inner cavity of the dust collection shell, pushing dust into the collection cylinder.

[0007] Preferably, multiple cooling fans are connected by fixing rods, and one cooling fan is fixed to the dust collection shell by a fixing plate. The bottom of the dust collection shell is detachably provided with a base.

[0008] Preferably, multiple baffles are fixedly connected by connecting rods, and one connecting rod is slidably mounted on the body of the partial discharge detector via a slide rail. One end of the connecting rod is threadedly connected to a lead screw, and both ends of the lead screw are rotatably mounted on the body of the partial discharge detector. A motor is fixedly mounted on the body of the partial discharge detector, and the output end of the motor is fixedly connected to one end of the lead screw.

[0009] Preferably, a transmission roller is rotatably provided at each of the four corners on one side of the partial discharge detector body. A conveyor belt is driven on the transmission roller. A connecting seat is fixedly connected to the conveyor belt. A mounting shell is fixedly connected to one end of the connecting seat. One end of the push block is rotatably mounted on the mounting shell. A motor is provided on the partial discharge detector body to drive the transmission roller to rotate.

[0010] Preferably, the mounting housing is provided with a second motor, and the output end of the second motor is fixedly connected to the rotating end of the push block.

[0011] Preferably, a spring is fixedly connected to one side of the push block two, and the other end of the spring is fixedly connected to the inner wall of the push block one.

[0012] Preferably, the collecting cylinder is mounted on the main body of the partial discharge detector by fastening bolts.

[0013] Preferably, the collecting cylinder is equipped with an integrated sealing and squeezing assembly; The integrated sealing and squeezing assembly includes a pressure plate 1 located inside the collection cylinder, with pressure plates 2 slidably inserted into both ends of the pressure plate 1.

[0014] Preferably, the inner cavity of the pressure plate is equipped with a motor, and both output ends of the motor are fixedly connected to lead screws, which are threadedly connected to the two pressure plates respectively.

[0015] Preferably, the collecting cylinder is provided with a second drive roller, the second drive roller is provided with a first conveyor belt, the first conveyor belt passes through the groove of the collecting cylinder, and one end of the pressure plate is fixedly connected to the first conveyor belt. The collecting cylinder is provided with a power device for driving the second drive roller to rotate.

[0016] The beneficial effects of this invention are as follows: 1. The portable partial discharge detector of this invention utilizes a heat exchange efficiency maintenance component to automatically remove dust from the surface of the heat sink fins, effectively preventing dust from clogging the heat dissipation airflow and ensuring the high efficiency of forced convection between the cooling fan and the heat sink fins, significantly improving the long-term stability and heat dissipation reliability of the equipment. Furthermore, even if the heat sink fins are evenly distributed along the circumference of the partial discharge detector body, the scraped dust can be collected in a collection cylinder by scraping along a rectangular trajectory. Simply removing the collection cylinder allows for convenient centralized cleaning, eliminating the need for frequent disassembly of the entire unit for deep maintenance. This significantly reduces the frequency and difficulty of manual cleaning, improving the ease of use and maintenance efficiency of the equipment.

[0017] In addition, compared to simply scraping to clean the dust on the surface of the heat sink fins, the structure of scraping and collecting in this solution can physically isolate the cleaned dust from the heat sink fins. This prevents the dust from being stirred up again by the airflow disturbance of the cooling fan or the vibration of the equipment itself due to its location around the partial discharge detector body, and from re-adhering to the surface of the heat sink fins and causing secondary pollution, thus ensuring the durability of the cleaning effect.

[0018] 2. The portable partial discharge detector of this invention utilizes an integrated sealing and squeezing component to prevent dust from flowing back from the collection cylinder to the dust collection shell due to tilting or deflection during equipment transportation or carrying, and then re-adhering to the surface of the heat dissipation fins through the through holes. This fundamentally eliminates the continuous impact of secondary pollution on the heat dissipation effect. Furthermore, a power device can drive the transmission roller two to rotate, causing the conveyor belt one to operate. The pressure plates one and two can descend under the drive of the conveyor belt one, squeezing the dust in the collection cylinder, thereby compressing the dust volume, significantly increasing the effective storage capacity of the collection cylinder, extending the single cleaning cycle, and further reducing maintenance frequency.

[0019] 3. The portable partial discharge detector of the present invention uses heat dissipation fins to absorb the heat generated by the detector body. Simultaneously, multiple cooling fans are activated, forming multiple forced convection airflows to accelerate the expulsion of hot air between the heat dissipation fins, thereby achieving heat dissipation and preventing overheating of the detector body. Furthermore, the heat dissipation fins are evenly distributed along the circumference of the detector body, further enhancing the heat dissipation effect. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 yes Figure 1 Enlarged view of a portion of point A in the middle; Figure 3 This is a three-dimensional structural schematic diagram of the present invention from another perspective; Figure 4 This is a schematic diagram of the three-dimensional structure of the ash collection area; Figure 5 This is a schematic diagram of the three-dimensional structure of the ash shell from another perspective; Figure 6 yes Figure 5 Enlarged view of a section at point B in the middle; Figure 7 This is a schematic diagram of the three-dimensional structure of the collection tube; Figure 8 This is a schematic diagram of the three-dimensional structure of two parts of the conveyor belt; Figure 9 This is a schematic diagram of a three-dimensional structure of a conveyor belt; Figure 10 This is a schematic diagram of the connection relationship between pressure plate one and pressure plate two. Figure 11 This is a schematic diagram of the planar structure showing the connection relationship between push block one and push block two.

[0022] In the diagram: 1. Main body of the partial discharge detector; 2. Cooling fan; 3. Base; 4. Heat dissipation fins; 5. Dust collection shell; 6. Lead screw one; 7. Motor one; 8. Baffle; 9. Dust scraper; 10. Connecting rod; 11. Collection cylinder; 12. Conveyor belt one; 13. Pressure plate one; 14. Pressure plate two; 15. Conveyor belt two; 16. Push block one; 17. Push block two; 18. Mounting shell; 19. Motor two; 20. Connecting seat; 21. Motor three; 22. Lead screw two; 23. Spring; 24. Transmission roller one; 25. Through hole; 26. Fixing plate; 27. Fastening bolt; 28. Motor four; 29. ​​Slide rail; 30. Transmission roller two; 31. Fixing rod. Detailed Implementation

[0023] The technical solution of the present invention will now be clearly and completely described 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.

[0024] Please refer to Figures 1-11 The present invention provides a technical solution: a portable partial discharge detector, including a partial discharge detector body 1 and multiple cooling fans 2. Multiple rows of heat dissipation fins 4 are evenly arranged along the circumference of the partial discharge detector body 1, and adjacent heat dissipation fins 4 form a heat dissipation air channel. Multiple cooling fans 2 are evenly distributed along the circumference of the partial discharge detector body 1, and the air outlet of each cooling fan 2 is aligned with a row of heat dissipation fins 4. The partial discharge detector body 1 is provided with a heat exchange efficiency maintenance component. The heat exchange efficiency maintenance component includes multiple baffles 8, which are evenly distributed around the circumference of the partial discharge detector body 1. Each baffle 8 is attached to the edge of a row of heat dissipation fins 4. Multiple scraper blocks 9 are fixedly connected to the baffles 8. The scraper blocks 9 are adapted to the specifications of the heat dissipation ducts, and each scraper block 9 is attached to the inner wall of a heat dissipation duct. A dust collection shell 5 is fixedly fitted on the partial discharge detector body 1. The dust collection shell 5 has multiple sets of through holes 25 aligned with multiple heat dissipation ducts. A collection cylinder 11 is detachably provided at the bottom of the dust collection shell 5. The inner cavity of the dust collection shell 5 has a pusher block 16 that can move along its inner wall. Pusher blocks 27 are slidably inserted on both sides of the pusher block 16. The scraper blocks 9 move along the surface of the heat dissipation fins 4 to push the dust in the heat dissipation ducts into the dust collection shell 5. Pusher blocks 16 and pusher blocks 27 move along the inner cavity of the dust collection shell 5 to push the dust into the collection cylinder 11.

[0025] In this embodiment, as Figures 2-6 , Figure 8 , Figure 11 As shown, multiple cooling fans 2 are connected by fixing rods 31. One cooling fan 2 is fixed on the dust collection shell 5 by fixing plate 26. The bottom of the dust collection shell 5 is detachably provided with a base 3.

[0026] Multiple baffles 8 are fixedly connected by connecting rods 10, and one side of the connecting rod 10 is slidably mounted on the partial discharge detector body 1 via slide rail 29. One end of the connecting rod 10 is threadedly connected to a lead screw 6, and both ends of the lead screw 6 are rotatably mounted on the partial discharge detector body 1. A motor 7 is fixedly mounted on the partial discharge detector body 1, and the output end of the motor 7 is fixedly connected to one end of the lead screw 6.

[0027] The main body 1 of the partial discharge detector has four rotating drive rollers 24 at each of its four corners. A conveyor belt 15 is driven on the drive rollers 24. A connecting seat 20 is fixedly connected to the conveyor belt 15. A mounting shell 18 is fixedly connected to one end of the connecting seat 20. One end of the push block 16 is rotatably mounted on the mounting shell 18. The main body 1 of the partial discharge detector is equipped with a motor 28 for driving the drive rollers 24 to rotate.

[0028] The mounting housing 18 is equipped with a second motor 19, and the output end of the second motor 19 is fixedly connected to the rotating end of the push block 16.

[0029] A spring 23 is fixedly connected to one side of push block 2 17, and the other end of spring 23 is fixedly connected to the inner wall of push block 1 16.

[0030] The collection cylinder 11 is mounted on the main body 1 of the partial discharge detector by fastening bolts 27.

[0031] Specifically, the partial discharge detector body 1 is placed in the designated position for use, with the base 3 providing support. Since the base 3 and the partial discharge detector body 1 are detachably connected, they can be separated for storage, making them more convenient to carry.

[0032] During operation, the heat dissipation fins 4 absorb the heat generated by the partial discharge detector body 1. Simultaneously, multiple cooling fans 2 are activated, forming multiple forced convection airflows to accelerate the expulsion of hot air between the heat dissipation fins 4, thereby achieving heat dissipation. The heat dissipation fins 4 are evenly distributed around the circumference of the partial discharge detector body 1, further enhancing the heat dissipation effect.

[0033] Initially, the dust scraper 9 is located at the end of the heat sink fin 4 furthest from the dust collection shell 5. Periodically, the motor 7 drives the lead screw 6 to rotate, causing the connecting rod 10 on one side to slide laterally along the slide rail 29. This causes multiple dust scraper blocks 9 and multiple baffles 8 to move laterally synchronously under the influence of the connecting rod 10. As the dust scraper blocks 9 move laterally, they scrape off the dust adhering to the surface of the heat sink fin 4. The baffles 8 prevent the scraped dust from leaving the heat dissipation channel; instead, they continue to move along the channel under the push of the dust scraper blocks 9 until the dust scraper blocks 9 reach the through hole 25 of the dust collection shell 5 and block it.

[0034] Furthermore, the edge of the dust collection shell 5 is provided with a slot that matches the baffle 8. When the scraper block 9 moves to the through hole 25 of the dust collection shell 5, the baffle 8 is inserted into the slot. Therefore, the baffle 8 can prevent dust from falling out during the movement of the scraper block 9, and will not interfere with the scraper block 9's sealing of the through hole 25.

[0035] After the through hole 25 is blocked by the scraper block 9, all the dust enters the dust collection shell 5, forming a sealed cavity. The motor 28 drives the transmission roller 24 to rotate, which in turn drives the conveyor belt 15 to move, thereby moving the connecting seat 20 along a rectangular track, causing the pusher block 16 and pusher block 17 to scrape the dust pushed into the dust collection shell 5. During the movement, the motor 19 drives the pusher block 16 and pusher block 17 to rotate, adjusting their angle to fit the inner cavity shape of the dust collection shell 5; at the same time, the pusher block 17, under the action of the spring 23, sticks tightly to the inner wall of the dust collection shell 5, achieving thorough scraping of the dust in the dust collection shell 5 until all the dust falls into the collection cylinder 11.

[0036] Repeating the above operation periodically automatically removes dust from the surface of the heat sink fins 4, effectively preventing dust from clogging the heat dissipation channels and ensuring the high efficiency of forced convection between the cooling fan 2 and the heat sink fins 4. This significantly improves the long-term stability and heat dissipation reliability of the equipment. Furthermore, even if the heat sink fins 4 are evenly distributed around the circumference of the partial discharge detector body 1, the dust can be collected in the collection cylinder 11 by scraping along a rectangular trajectory. The collection cylinder 11 can be easily removed by tightening the bolts 27 for centralized cleaning, eliminating the need for frequent disassembly of the entire machine for deep maintenance. This greatly reduces the frequency and difficulty of manual cleaning, improving the ease of use and maintenance efficiency of the equipment.

[0037] In addition, compared to simply scraping to clean the dust on the surface of the heat sink fins 4, the structure of scraping and collecting in this solution can physically isolate the cleaned dust from the heat sink fins 4, preventing the dust from being stirred up again by the airflow disturbance of the cooling fan 2 or the vibration of the equipment itself due to its location around the partial discharge detector body 1, and causing secondary pollution by re-attaching to the surface of the heat sink fins 4, thus ensuring the durability of the cleaning effect.

[0038] In this embodiment, as Figure 7 , Figure 9 , Figure 10 As shown, the collection cylinder 11 is equipped with an integrated sealing and squeezing assembly; The integrated sealing and squeezing assembly includes a pressure plate 13 located in the inner cavity of the collection cylinder 11, with a pressure plate 2 14 slidably inserted at both ends of the pressure plate 13.

[0039] The inner cavity of the pressure plate 13 is equipped with a motor 21. Both output ends of the motor 21 are fixedly connected to lead screws 22. The lead screws 22 on both sides are threadedly connected to the two pressure plates 14 respectively.

[0040] The collecting cylinder 11 is equipped with a second transmission roller 30, and a first conveyor belt 12 is provided on the second transmission roller 30. The first conveyor belt 12 passes through the groove of the collecting cylinder 11, and one end of the first pressure plate 13 is fixedly connected to the first conveyor belt 12. The collecting cylinder 11 is equipped with a power device for driving the second transmission roller 30 to rotate.

[0041] Specifically, in the above embodiments, although the cleaned dust can be collected in the collection cylinder 11, the partial discharge detector body 1 may deflect during the transportation and carrying process, causing the dust in the collection cylinder 11 to be poured out, so that the dust returns to the dust collection shell 5 and re-attaches to the surface of the heat dissipation fins 4 through the through hole 25, which will still affect the heat dissipation effect.

[0042] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows: In its initial state, pressure plate 2 14 is fully retracted into the inner cavity of pressure plate 13. At this time, there is a certain gap between pressure plate 13 and the inner wall of the collection cylinder 11. Furthermore, the top of pressure plate 13 is inclined, so after dust is scraped into the collection cylinder 11, the dust can fall below pressure plate 13 along the inclined surface of pressure plate 13 and through the gaps on both sides. Subsequently, motor 3 21 drives the lead screws 22 on both sides to rotate, causing pressure plates 2 14 on both sides to extend out from the inner cavity of pressure plate 13 simultaneously. Pressure plates 2 14 abut against the side wall of the collection cylinder 11, covering the gaps. Due to the covering effect of pressure plates 13 and 2 14, the dust in the collection cylinder 11 will not return to the dust collection shell 5, thus preventing dust from flowing back from the collection cylinder 11 to the dust collection shell 5 due to tilting or deflection during equipment transportation or carrying, and then re-attaching to the surface of the heat dissipation fins 4 through the through hole 25. This fundamentally eliminates the continuous impact of secondary pollution on the heat dissipation effect. Furthermore, the transmission roller 30 can be driven to rotate by the power device, causing the conveyor belt 12 to operate. The pressure plate 13 and pressure plate 14 can be lowered under the drive of the conveyor belt 12 to squeeze the dust in the collection cylinder 11, thereby compressing the volume of the dust, significantly increasing the effective storage capacity of the collection cylinder 11, extending the single cleaning cycle, and further reducing the frequency of maintenance.

[0043] Working principle: The partial discharge detector body 1 is placed in the designated position for use, and the base 3 provides support for it. Since the base 3 and the partial discharge detector body 1 are detachably connected, they can be separated for storage, making them more convenient to carry.

[0044] During operation, the heat dissipation fins 4 absorb the heat generated by the partial discharge detector body 1. Simultaneously, multiple cooling fans 2 are activated, forming multiple forced convection airflows to accelerate the expulsion of hot air between the heat dissipation fins 4, thereby achieving heat dissipation. The heat dissipation fins 4 are evenly distributed around the circumference of the partial discharge detector body 1, further enhancing the heat dissipation effect.

[0045] Initially, the dust scraper 9 is located at the end of the heat sink fin 4 furthest from the dust collection shell 5. Periodically, the motor 7 drives the lead screw 6 to rotate, causing the connecting rod 10 on one side to slide laterally along the slide rail 29. This causes multiple dust scraper blocks 9 and multiple baffles 8 to move laterally synchronously under the influence of the connecting rod 10. As the dust scraper blocks 9 move laterally, they scrape off the dust adhering to the surface of the heat sink fin 4. The baffles 8 prevent the scraped dust from leaving the heat dissipation channel; instead, they continue to move along the channel under the push of the dust scraper blocks 9 until the dust scraper blocks 9 reach the through hole 25 of the dust collection shell 5 and block it.

[0046] Furthermore, the edge of the dust collection shell 5 is provided with a slot that matches the baffle 8. When the scraper block 9 moves to the through hole 25 of the dust collection shell 5, the baffle 8 is inserted into the slot. Therefore, the baffle 8 can prevent dust from falling out during the movement of the scraper block 9, and will not interfere with the scraper block 9's sealing of the through hole 25.

[0047] After the through hole 25 is blocked by the scraper block 9, all the dust enters the dust collection shell 5, forming a sealed cavity. The motor 28 drives the transmission roller 24 to rotate, which in turn drives the conveyor belt 15 to move, thereby moving the connecting seat 20 along a rectangular track, causing the pusher block 16 and pusher block 17 to scrape the dust pushed into the dust collection shell 5. During the movement, the motor 19 drives the pusher block 16 and pusher block 17 to rotate, adjusting their angle to fit the inner cavity shape of the dust collection shell 5; at the same time, the pusher block 17, under the action of the spring 23, sticks tightly to the inner wall of the dust collection shell 5, achieving thorough scraping of the dust in the dust collection shell 5 until all the dust falls into the collection cylinder 11.

[0048] Repeating the above operation periodically automatically removes dust from the surface of the heat sink fins 4, effectively preventing dust from clogging the heat dissipation channels and ensuring the high efficiency of forced convection between the cooling fan 2 and the heat sink fins 4. This significantly improves the long-term stability and heat dissipation reliability of the equipment. Furthermore, even if the heat sink fins 4 are evenly distributed around the circumference of the partial discharge detector body 1, the dust can be collected in the collection cylinder 11 by scraping along a rectangular trajectory. The collection cylinder 11 can be easily removed by tightening the bolts 27 for centralized cleaning, eliminating the need for frequent disassembly of the entire machine for deep maintenance. This greatly reduces the frequency and difficulty of manual cleaning, improving the ease of use and maintenance efficiency of the equipment.

[0049] In addition, compared to simply scraping to clean the dust on the surface of the heat sink fins 4, the structure of scraping and collecting in this solution can physically isolate the cleaned dust from the heat sink fins 4, preventing the dust from being stirred up again by the airflow disturbance of the cooling fan 2 or the vibration of the equipment itself due to its location around the partial discharge detector body 1, and causing secondary pollution by re-attaching to the surface of the heat sink fins 4, thus ensuring the durability of the cleaning effect.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable partial discharge detector, comprising a partial discharge detector body (1) and multiple cooling fans (2), wherein multiple rows of cooling fins (4) are evenly arranged along the circumference of the partial discharge detector body (1), adjacent cooling fins (4) form a cooling air channel, and multiple cooling fans (2) are evenly distributed along the circumference of the partial discharge detector body (1), and the air outlet of each cooling fan (2) is aligned with a row of cooling fins (4), characterized in that: The partial discharge detector body (1) is provided with a heat exchange efficiency maintenance component; The heat exchange efficiency maintenance component includes multiple baffles (8), which are evenly distributed around the circumference of the partial discharge detector body (1). Each baffle (8) is attached to the edge of a row of heat dissipation fins (4). Multiple scraper blocks (9) are fixedly connected to the baffles (8). The scraper blocks (9) are adapted to the specifications of the heat dissipation duct, and each scraper block (9) is attached to the inner wall of a heat dissipation duct. A dust collection shell (5) is fixedly fitted on the partial discharge detector body (1). Multiple sets of dust collection shells (5) are provided on the dust collection shell (5). The dust collection shell (5) is detachably provided with a collection cylinder (11) at the bottom of the through hole (25) aligned with multiple heat dissipation air ducts. The inner cavity of the dust collection shell (5) is provided with a push block 1 (16) that can move along its inner wall. Push block 2 (17) is slidably inserted on both sides of push block 1 (16). The dust scraper (9) moves along the surface of the heat dissipation fins (4) and pushes the dust in the heat dissipation air duct into the dust collection shell (5). Push block 1 (16) and push block 2 (17) move along the inner cavity of the dust collection shell (5) and push the dust into the collection cylinder (11).

2. The portable partial discharge detector according to claim 1, characterized in that: Multiple cooling fans (2) are connected by a fixing rod (31). One cooling fan (2) is fixed on the dust collection shell (5) by a fixing plate (26). The bottom of the dust collection shell (5) is detachably provided with a base (3).

3. A portable partial discharge detector according to claim 1, characterized in that: Multiple baffles (8) are fixedly connected by connecting rods (10), and one side of the connecting rod (10) is slidably mounted on the partial discharge detector body (1) via a slide rail (29). One end of the connecting rod (10) is threadedly connected to a lead screw (6), and both ends of the lead screw (6) are rotatably mounted on the partial discharge detector body (1). A motor (7) is fixedly mounted on the partial discharge detector body (1), and the output end of the motor (7) is fixedly connected to one end of the lead screw (6).

4. A portable partial discharge detector according to claim 1, characterized in that: The partial discharge detector body (1) has a transmission roller (24) rotatably mounted at each of the four corners on one side. The transmission roller (24) is driven by a conveyor belt (15). The conveyor belt (15) is fixedly connected to a connecting seat (20). One end of the connecting seat (20) is fixedly connected to a mounting shell (18). One end of the push block (16) is rotatably mounted on the mounting shell (18). The partial discharge detector body (1) is equipped with a motor (28) for driving the transmission roller (24) to rotate.

5. A portable partial discharge detector according to claim 4, characterized in that: The mounting housing (18) is equipped with a second motor (19), and the output end of the second motor (19) is fixedly connected to the rotating end of the push block (16).

6. A portable partial discharge detector according to claim 4, characterized in that: A spring (23) is fixedly connected to one side of the push block 2 (17), and the other end of the spring (23) is fixedly connected to the inner wall of the push block 1 (16).

7. A portable partial discharge detector according to claim 1, characterized in that: The collection tube (11) is mounted on the main body (1) of the partial discharge detector by fastening bolts (27).

8. A portable partial discharge detector according to claim 1, characterized in that: The collecting cylinder (11) is equipped with an integrated sealing and squeezing assembly; The integrated sealing and squeezing assembly includes a pressure plate one (13) located in the inner cavity of the collection cylinder (11), and pressure plates two (14) are slidably inserted into both ends of the pressure plate one (13).

9. A portable partial discharge detector according to claim 8, characterized in that: The inner cavity of the pressure plate 1 (13) is equipped with a motor 3 (21), and the output ends of the motor 3 (21) are fixedly connected with screw 2 (22), and the screw 2 (22) on both sides are threadedly connected to the two pressure plates 2 (14) respectively.

10. A portable partial discharge detector according to claim 8, characterized in that: The collecting cylinder (11) is provided with a second transmission roller (30), and the second transmission roller (30) is provided with a first conveyor belt (12). The first conveyor belt (12) passes through the groove of the collecting cylinder (11), and one end of the pressure plate (13) is fixedly connected to the first conveyor belt (12). The collecting cylinder (11) is provided with a power device for driving the second transmission roller (30) to rotate.

Images