CN213990514U

CN213990514U - Heat abstractor for dc-to-ac converter

Info

Publication number: CN213990514U
Application number: CN202023100379.3U
Authority: CN
Inventors: 郑永烧
Original assignee: Xiamen Mars Rock Technology Co ltd
Current assignee: Xiamen Mars Rock Technology Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-08-17
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses a heat abstractor for dc-to-ac converter, including seting up the venthole on the inner wall of dc-to-ac converter casing left side, the left side thread tightening of dc-to-ac converter casing has the first dust screen with venthole matched with, it is equipped with out the fan housing to inlay on the right side inner wall of dc-to-ac converter casing, goes out the fixed cover in the fan housing and is equipped with the second dust screen, and the right side thread tightening of dc-to-ac converter casing has the right side to be the rectangle box that the opening set up, inlays on the left side inner wall of rectangle box and is equipped with radiator fan. The utility model relates to a rationally, cooling fan's setting has accelerated the inside gas flow speed of dc-to-ac converter casing, improves the radiating efficiency, and is convenient for continuous circulation to strike and shakes the third dust prevention net, strikes the slope setting mode of power cooperation third dust prevention net of shaking, can effectively shake the dust granule of the online adhesion of third dust prevention net and fall downwards, alleviates dust adhesion blocking phenomenon, and can roll out the third dust prevention net and thoroughly clear up, satisfies the user demand.

Description

Heat abstractor for dc-to-ac converter

Technical Field

The utility model relates to a heat-dissipating equipment technical field especially relates to a heat abstractor for dc-to-ac converter.

Background

The inverter is a converter for converting direct current electric energy into constant-frequency constant-voltage or frequency-modulation voltage-regulation alternating current (generally 220V,50Hz sine wave), and comprises an inverter bridge, a control logic and a filter circuit, wherein when the inverter is normally used, electric elements inside the inverter can generate heat, if the heat is not dissipated in time, the inverter can influence the normal operation of the electric elements due to the rise of the internal temperature of the inverter, and even can cause the condition that the electric elements are burnt;

the existing inverter has poor heat dissipation effect, the existing inverter mostly depends on heat dissipation holes on an inverter shell to realize heat dissipation when in use, the heat dissipation efficiency is low only by a mode of simply flowing hot air for heat dissipation through the heat dissipation holes, and in order to avoid the entry of dust, the existing inverter mostly can be provided with a dust screen at the heat dissipation holes to achieve the purpose of dust prevention; but its dust screen does not possess the function that in time shakes the ash, and inside the dust screen that in use was in air inlet department can avoid the dust to get into the dc-to-ac converter, but the easy adhesion of dust is piled up and is blockked up in the outside of dust screen, causes the ventilation efficiency of air inlet department to reduce the radiating efficiency, can not satisfy the user demand, therefore we have proposed a heat abstractor for inverter and have been used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a heat dissipation device for an inverter.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a heat dissipation device for an inverter comprises an air outlet hole formed in the inner wall of the left side of an inverter shell, a first dust screen matched with the air outlet hole is fixed on the left side of the inverter shell through threads, an air outlet cover is embedded on the inner wall of the right side of the inverter shell, a second dust screen is sleeved in the air outlet cover, a rectangular box with the right side arranged for an opening is fixed on the right side of the inverter shell through threads, a heat dissipation fan is embedded on the inner wall of the left side of the rectangular box, an air outlet of the heat dissipation fan is communicated with the air outlet cover, a third dust screen obliquely arranged is installed in the rectangular box in a rotating mode, the front side and the rear side of the third dust screen are respectively in movable contact with the inner wall of the front side and the inner wall of the rear side of the rectangular box, a fixed block is arranged in movable contact with the top of the right side of the third dust screen in a threaded mode, the fixed block is fastened to the top of the right side of the rectangular box, and a limit block is fixedly installed on the inner wall of the top of the rectangular box, the right side of the limiting block is arranged to be an inclined plane and movably contacted with the top of the left side of the third dust prevention net, the left side of the third dust prevention net is provided with a collision rod, the right side of the collision rod is arranged to be an arc-shaped structure, the top of the collision rod is fixedly provided with a swing rod, the inner wall of the top of the rectangular box is provided with a first groove, a rotating shaft is rotatably arranged between the inner wall of the front side and the inner wall of the rear side of the first groove, the rotating shaft is fixedly sleeved with a disc, the top end of the swing rod extends into the first groove and is fixedly connected with the bottom of the disc, the rotating shaft is fixedly sleeved with a gear positioned at the front side of the disc, the top of the gear is meshed with a rack, one side of the bottom of the rack is fixedly provided with a moving block, the inner wall of the right side of the first groove is fixedly provided with a T-shaped positioning rod, the moving block is slidably sleeved on the T-shaped positioning rod, a spring is fixedly arranged between the left side of the moving block and the inner wall of the T-shaped positioning rod, and movably sleeved on the T-shaped positioning rod, an eccentric wheel is arranged above the T-shaped positioning rod, a ball is embedded at the right end of the rack and is in rolling contact with the left side of the eccentric wheel, a driving motor is fixedly mounted at the top of the rectangular box, and the bottom end of an output shaft of the driving motor extends into the first groove and is fixedly connected with one side of the top of the eccentric wheel.

Preferably, top one side fixed mounting of fixed block has the installation piece, and first thread groove has been seted up at the right side top of rectangle box, and first thread groove internal thread cover is equipped with the fast solid bolt of T shape, and the right-hand member of the fast solid bolt of T shape extends to the right side of rectangle box, and installation piece thread bush is established on the fast solid bolt of T shape.

Preferably, the top and the bottom of third dust screen are both established to the arc structure, and the top and the bottom of third dust screen all with the top inner wall and the bottom inner wall movable contact of rectangle box.

Preferably, a circular hole is formed in the inner wall of the top of the first groove, a sealing bearing is fixedly sleeved in the circular hole, and the inner side of an inner ring of the sealing bearing is fixedly connected with the outer side of an output shaft of the driving motor.

Preferably, the right inner wall of the inverter shell is provided with a mounting hole, and the inner wall of the mounting hole is fixedly connected with the outer side of the air outlet cover.

Preferably, the equal fixed mounting in left side top and the left side bottom of rectangle box has the rectangle fixture block, and the draw-in groove has all been seted up to the right side top and the right side bottom of inverter housing, and the rectangle fixture block clamps mutually with the draw-in groove that corresponds, and the second thread groove has been seted up at the top of the rectangle fixture block that lies in the top in two rectangle fixture blocks, and the thread bush is equipped with T shape bolt in the second thread groove, and the top of T shape bolt extends to the top of inverter housing, and inverter housing thread bush is established on T shape bolt.

Preferably, the left inner wall of the rectangular box is provided with an embedded groove, the inner wall of the embedded groove is fixedly connected with the outer side of the heat dissipation fan, the left inner wall of the embedded groove is provided with an air vent, and the air vent is communicated with the air outlet cover.

Compared with the prior art, the beneficial effects of the utility model are that:

through the matching of the inverter shell, the first dust screen, the air outlet cover, the rectangular box, the third dust screen, the heat dissipation fan, the collision rod, the swing rod, the fixed block, the spring, the first groove, the rotating shaft, the gear, the rack, the driving motor, the eccentric wheel and the T-shaped positioning rod with the moving block, when the interior of the inverter shell is dissipated heat, the heat dissipation fan is started to extract outside air through the air inlet end of the heat dissipation fan, the extracted air passes through the third dust screen and blows the interior of the inverter shell through the air outlet of the heat dissipation fan and the air outlet cover in sequence, the flowing speed of the air in the inverter shell is accelerated, the air in the inverter shell is discharged to the outside through the air outlet hole and the first dust screen, the heat dissipation efficiency is improved, the third dust screen filters dust in the entering air, and simultaneously, the driving motor is started to drive the eccentric wheel to rotate the ball when the front half circle, the extrusion force drives the rack to move leftwards through the leftward movement of the balls, the rack drives the moving block to slide leftwards on the T-shaped positioning rod and compress the spring, the extrusion force on the balls is gradually released when the eccentric wheel rotates for the second half circle, the elastic force of the spring in a compression state drives the rack to move rightwards through the moving block, the eccentric wheel continuously rotates, the rack is further driven to move leftwards and rightwards circularly, the rack drives the gear meshed with the rack to rotate, the gear drives the swing rod to swing leftwards and leftwards circularly through the rotating shaft and the disc, the swing rod drives the collision rod to circularly collide and knock the third dust screen, the vibration force is matched with the inclined arrangement of the third dust screen, so that the dust statically attached and accumulated on the right side of the third dust screen is shaken off, the purpose of automatically circularly shaking off the dust is further achieved, when the third dust screen needs to be rotated out and thoroughly cleaned, the forward-rotating T-shaped quick-fixing bolt is gradually separated from the first thread groove, can take off the fixed block and remove sheltering from to third prevention dirt net, can rotate the third prevention dirt net right this moment, alright rotate out the rectangle box with the third prevention dirt net and clear up.

The utility model relates to a rationally, cooling fan's setting has accelerated the inside gas flow speed of dc-to-ac converter casing, improves the radiating efficiency, and is convenient for continuous circulation to strike and shakes the third dust prevention net, strikes the slope setting mode of power cooperation third dust prevention net of shaking, can effectively shake the dust granule of the online adhesion of third dust prevention net and fall downwards, alleviates dust adhesion blocking phenomenon, and can roll out the third dust prevention net and thoroughly clear up, satisfies the user demand.

Drawings

Fig. 1 is a schematic cross-sectional structural view of a heat dissipation device for an inverter according to the present invention;

fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure: the device comprises an inverter shell 1, a first dustproof net 2, an air outlet cover 3, a rectangular box 4, a third dustproof net 5, a heat dissipation fan 6, a collision rod 7, a swing rod 8, a fixing block 9, a spring 10, a first groove 11, a rotating shaft 12, a gear 13, a rack 14, a driving motor 15, an eccentric wheel 16, a T-shaped positioning rod 17 and a moving block 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a heat dissipation device for an inverter comprises an air outlet hole formed on the left inner wall of an inverter housing 1, a first dust screen 2 matched with the air outlet hole is fixed on the left side of the inverter housing 1 through screw threads, an air outlet cover 3 is embedded on the right inner wall of the inverter housing 1, a second dust screen is fixedly sleeved in the air outlet cover 3, a rectangular box 4 with the right side provided with an opening is fixed on the right side of the inverter housing 1 through screw threads, a heat dissipation fan 6 is embedded on the left inner wall of the rectangular box 4, an air outlet of the heat dissipation fan 6 is communicated with the air outlet cover 3, a third dust screen 5 obliquely arranged is rotatably installed in the rectangular box 4, the front side and the rear side of the third dust screen 5 are respectively in movable contact with the front inner wall and the rear inner wall of the rectangular box 4, a fixing block 9 is movably contacted with the right top of the third dust screen 5, the fixing block 9 is fastened on the right top of the rectangular box 4 through screw threads, a limiting block is fixedly arranged on the inner wall of the top of the rectangular box 4, the right side of the limiting block is arranged to be an inclined plane and is movably contacted with the top of the left side of a third dust prevention net 5, a collision rod 7 is arranged on the left side of the third dust prevention net 5, the right side of the collision rod 7 is arranged to be an arc-shaped structure, a swing rod 8 is fixedly arranged on the top of the collision rod 7, a first groove 11 is arranged on the inner wall of the top of the rectangular box 4, a rotating shaft 12 is rotatably arranged between the inner wall of the front side and the inner wall of the rear side of the first groove 11, a disc is fixedly sleeved on the rotating shaft 12, the top end of the swing rod 8 extends into the first groove 11 and is fixedly connected with the bottom of the disc, a gear 13 positioned on the front side of the disc is fixedly sleeved on the rotating shaft 12, a rack 14 is meshed with the top of the gear 13, a moving block 18 is fixedly arranged on one side of the bottom of the rack 14, a T-shaped positioning rod 17 is fixedly arranged on the inner wall of the right side of the first groove 11, the moving block 18 is slidably sleeved on the T-shaped positioning rod 17, the utility model relates to a rationally, the setting of the heat dissipation fan 6 accelerates the gas flow rate in the inverter housing 1, improves the heat dissipation efficiency, and is convenient for continuously and circularly knocking the third dust screen 5, the knocking force is matched with the inclined setting mode of the third dust screen 5, and dust particles adhered on the third dust screen 5 can be effectively knocked down, thereby alleviating the phenomenon of dust adhesion blockage, and the third dust prevention net 5 can be rotated out to be thoroughly cleaned, so that the use requirement is met.

In the utility model, a mounting plate is fixedly arranged on one side of the top of a fixed block 9, a first thread groove is arranged on the top of the right side of a rectangular box 4, a T-shaped quick-fixing bolt is sleeved in a thread in the first thread groove, the right end of the T-shaped quick-fixing bolt extends to the right side of the rectangular box 4, the mounting plate is sleeved on the T-shaped quick-fixing bolt in a thread way, the top and the bottom of a third dust screen 5 are both arranged into arc structures, the top and the bottom of the third dust screen 5 are both in movable contact with the inner wall of the top and the inner wall of the bottom of the rectangular box 4, a circular hole is arranged on the inner wall of the top of a first groove 11, a sealing bearing is fixedly sleeved in the circular hole, the inner side of the sealing bearing is fixedly connected with the outer side of an output shaft of a driving motor 15, a mounting hole is arranged on the inner wall of the right side of an inverter shell 1, the inner wall of the mounting hole is fixedly connected with the outer side of an air outlet cover 3, a rectangular fixture block is fixedly arranged on the top of the left side and the bottom of the rectangular box 4, the top and the bottom of the right side of the inverter shell 1 are both provided with a clamping groove, the rectangular clamping blocks are clamped with the corresponding clamping grooves, the top of the rectangular clamping block positioned above the two rectangular clamping blocks is provided with a second thread groove, the thread of the second thread groove is sleeved with a T-shaped bolt, the top of the T-shaped bolt extends to the upper part of the inverter shell 1, the thread of the inverter shell 1 is sleeved on the T-shaped bolt, the inner wall of the left side of the rectangular box 4 is provided with an embedded groove, the inner wall of the embedded groove is fixedly connected with the outer side of the heat dissipation fan 6, the inner wall of the left side of the embedded groove is provided with an air vent, and the air vent is communicated with the air outlet cover 3. Can effectively shake the dust particle of adhesion downwards on the third dust screen 5 and fall, alleviate dust adhesion jam phenomenon, and can rotate out third dust screen 5 and thoroughly clear up, satisfy the user demand.

The working principle is as follows: when the heat dissipation device is used, when the interior of the inverter shell 1 is subjected to heat dissipation, the heat dissipation fan 6 is started to extract external gas through the air inlet end of the heat dissipation fan 6, the extracted gas passes through the third dust screen 5 and enters the air outlet cover 3 through the air outlet of the heat dissipation fan 6, the gas in the air outlet cover 3 is discharged into the inverter shell 1 to be blown, the flowing speed of the gas in the inverter shell 1 is accelerated under the blowing of the gas, the gas in the inverter shell 1 is discharged to the outside through the air outlet and the first dust screen 2, and the heat dissipation efficiency is improved by matching with a mode that the heat dissipation fan 6 extracts the gas to blow the interior of the inverter shell 1;

meanwhile, the third dust prevention net 5 filters dust in the entering air, the filtered dust is easy to adhere to the right side of the third dust prevention net 5 statically and accumulate on the right side of the third dust prevention net 5, the driving motor 15 is started, an output shaft of the driving motor 15 drives the eccentric wheel 16 to rotate, the eccentric wheel 16 extrudes the balls when rotating the front half circle, the extruding force drives the balls to move leftwards, the balls drive the rack 14 to move leftwards, the rack 14 drives the moving block 18 to slide leftwards on the T-shaped positioning rod 17, the moving block 18 compresses the spring 10 when moving leftwards, the extruding force on the balls is gradually released when rotating the rear half circle of the eccentric wheel 16, the elastic force of the spring 10 in a compressed state drives the moving block 18 to move rightwards, the moving block 18 drives the rack 14 to move rightwards, the eccentric wheel 16 continuously rotates, the rack 14 further enables the rack 14 to move leftwards and rightwards circularly, and the rack 14 drives the gear 13 meshed with the rack 14 to rotate anticlockwise and backwards and forwards, the gear 13 drives the disc to rotate clockwise and anticlockwise through the rotating shaft 12, the disc drives the swing rod 8 to swing clockwise and leftwards, the swing rod 8 swings rightwards and drives the collision rod 7 to collide and knock the third dust prevention net 5 rightwards, the swing rod 8 swings leftwards and drives the collision rod 7 to separate from the third dust prevention net 5 leftwards, the eccentric wheel 16 continuously rotates, the collision rod 7 further circularly collides and knocks the third dust prevention net 5, the third dust prevention net 5 vibrates, the vibration force is matched with the inclined arrangement of the third dust prevention net 5, dust which is statically adhered and accumulated on the right side of the third dust prevention net 5 is vibrated, the purpose of automatically and circularly vibrating the dust is achieved, the adhesion blocking phenomenon is relieved, and the frequency of disassembling and cleaning of workers can be effectively reduced;

when needs rotated out thoroughly clearance with third dirt net 5, positive rotation T shape fast solid bolt, T shape fast solid bolt separation gradually with first thread groove in the time of pivoted, and then has released the fixed to fixed block 9, can take off fixed block 9 and remove sheltering from to third dust screen 5, can rotate third dirt net 5 right this moment, alright rotate out rectangle box 4 with third dirt net 5 and clear up.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A heat dissipation device for an inverter comprises an air outlet hole formed in the inner wall of the left side of an inverter shell (1), wherein a first dust screen (2) matched with the air outlet hole is fixed on the left side of the inverter shell (1) through threads, and is characterized in that an air outlet cover (3) is embedded on the inner wall of the right side of the inverter shell (1), a second dust screen is sleeved in the air outlet cover (3) in a fixed mode, a rectangular box (4) with the right side arranged for an opening is fixed on the right side of the inverter shell (1) through threads, a heat dissipation fan (6) is embedded on the inner wall of the left side of the rectangular box (4), an air outlet of the heat dissipation fan (6) is communicated with the air outlet cover (3), a third dust screen (5) arranged in an inclined mode is installed in the rectangular box (4) in a rotating mode, the front side and the rear side of the third dust screen (5) are respectively in movable contact with the inner wall of the front side and the inner wall of the rear side of the rectangular box (4), a fixed block (9) is movably contacted with the top of the right side of the third dust prevention net (5), the fixed block (9) is fastened at the top of the right side of the rectangular box (4) in a threaded manner, a limit block is fixedly installed on the inner wall of the top of the rectangular box (4), the right side of the limit block is provided with an inclined plane and is movably contacted with the top of the left side of the third dust prevention net (5), the left side of the third dust prevention net (5) is provided with an impact rod (7), the right side of the impact rod (7) is provided with an arc-shaped structure, the top of the impact rod (7) is fixedly provided with a swing rod (8), the inner wall of the top of the rectangular box (4) is provided with a first groove (11), a rotating shaft (12) is rotatably installed between the inner wall of the front side and the inner wall of the rear side of the first groove (11), a disc is fixedly sleeved on the rotating shaft (12), the top end of the swing rod (8) extends into the first groove (11) and is fixedly connected with the bottom of the disc, a gear (13) positioned at the front side of the disc is fixedly sleeved on the rotating shaft (12), the top of gear (13) meshes rack (14), bottom one side fixed mounting of rack (14) has movable block (18), fixed mounting has T shape locating lever (17) on the right side inner wall of first groove (11), movable block (18) slip cover is established on T shape locating lever (17), fixed mounting has spring (10) between the left side of movable block (18) and the left side inner wall of T shape locating lever (17), spring (10) movable sleeve is established on T shape locating lever (17), the top of T shape locating lever (17) is equipped with eccentric wheel (16), the right-hand member of rack (14) is inlayed and is equipped with the ball, ball and the left side rolling contact of eccentric wheel (16), the top fixed mounting of rectangle box (4) has driving motor (15), the output shaft bottom of driving motor (15) extends to in first groove (11) and is fixed connection with one side of top of eccentric wheel (16).

2. The heat dissipation device for the inverter as claimed in claim 1, wherein a mounting piece is fixedly mounted on one side of the top of the fixed block (9), a first thread groove is formed in the top of the right side of the rectangular box (4), a T-shaped quick-fixing bolt is sleeved in the first thread groove in a threaded manner, the right end of the T-shaped quick-fixing bolt extends to the right side of the rectangular box (4), and the mounting piece is sleeved on the T-shaped quick-fixing bolt in a threaded manner.

3. The heat dissipation device for an inverter according to claim 1, wherein the top and the bottom of the third dust prevention mesh (5) are both arc-shaped structures, and the top and the bottom of the third dust prevention mesh (5) are both in movable contact with the top inner wall and the bottom inner wall of the rectangular box (4).

4. The heat dissipation device for the inverter according to claim 1, wherein a circular hole is formed in an inner wall of a top of the first groove (11), a sealing bearing is fixedly sleeved in the circular hole, and an inner side of an inner ring of the sealing bearing is fixedly connected with an outer side of an output shaft of the driving motor (15).

5. The heat dissipation device for the inverter according to claim 1, wherein a mounting hole is formed on the right inner wall of the inverter housing (1), and the inner wall of the mounting hole is fixedly connected with the outer side of the air outlet cover (3).

6. The heat dissipation device of claim 1, wherein rectangular fixture blocks are fixedly mounted on the top of the left side and the bottom of the left side of the rectangular box (4), clamping grooves are formed in the top of the right side and the bottom of the right side of the inverter housing (1), the rectangular fixture blocks are clamped with the corresponding clamping grooves, a second thread groove is formed in the top of the rectangular fixture block positioned above the two rectangular fixture blocks, a T-shaped bolt is sleeved in the second thread groove in a threaded manner, the top of the T-shaped bolt extends to the upper side of the inverter housing (1), and the inverter housing (1) is sleeved on the T-shaped bolt in a threaded manner.

7. The heat dissipation device for the inverter according to claim 1, wherein an embedded groove is formed on the left inner wall of the rectangular box (4), the inner wall of the embedded groove is fixedly connected with the outer side of the heat dissipation fan (6), and an air vent is formed on the left inner wall of the embedded groove and communicated with the air outlet cover (3).