CN212724937U

CN212724937U - Novel high-impedance isolation transformer

Info

Publication number: CN212724937U
Application number: CN202021956729.3U
Authority: CN
Inventors: 柴慧鑫
Original assignee: Suzhou Shengjiete Electromechanical Equipment Co ltd
Current assignee: Suzhou Shengjiete Electromechanical Equipment Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-03-16
Anticipated expiration: 2030-09-09

Abstract

The utility model discloses a novel high impedance isolation transformer, including casing and the high impedance isolation transformer body of fixed mounting in the casing that the front side set up for the opening, the mounting hole has been seted up on the bottom inner wall of casing, and the movable cover is equipped with first dust screen in the mounting hole, and first dust screen screw fastening is in the bottom of casing, inlays on the top inner wall of casing and is equipped with radiator fan, and radiator fan's bottom is established to the air outlet, and radiator fan's bottom fixed mounting has a fan housing. The utility model relates to a rationally, be convenient for the circulation drive second dust screen and be in and last vibrations state from top to bottom, the slope of deuterogamy second dust screen sets up the mode, can effectively shake the accumulational dust particle of adhesion on the second dust screen down and fall, alleviates adhesion blocking phenomenon, guarantees normal radiating work, also can effectively reduce the workman and dismantle the frequency of clearance, and be convenient for take off the second dust screen fast and clear up or change, is favorable to the use.

Description

Novel high-impedance isolation transformer

Technical Field

The utility model relates to a high impedance isolation transformer technical field especially relates to a novel high impedance isolation transformer.

Background

The isolation transformer is a transformer with an input winding and an output winding which are electrically isolated, the isolation transformer is used for avoiding touching a charged body accidentally and simultaneously, the isolation of the transformer is used for isolating respective currents of primary and secondary winding coils, and in the actual operation of a power supply line, in order to reduce the risk of burning out of the isolation transformer, the isolation transformer with high impedance is required to be used, and the application number is obtained through retrieval: 201120112965.1, a high impedance on-load voltage regulation isolation transformer, which belongs to the transformer manufacturing technology field, the technical proposal is that the isolation transformer comprises a coil, an iron yoke and a main insulation, the main insulation is arranged between the coil and the iron yoke, the main insulation is a paper tube structure, the paper tube is higher than the end part of the coil, the creepage distance of the end part of the coil to the iron yoke is increased, the improvement on the original electrical structure is realized, the essence of absorbing the small oil gap structure of the thin paper tube is fully introduced, the electric field environment of the end part is improved, the insulation strength of the end part of the coil is enhanced, the cushion block structure of the iron yoke is changed, and a limit insulation cushion block playing a limiting role is added to ensure the insulation distance of the coil from; in the calculation process, the short-circuit impedance value of the on-load voltage-regulating isolation transformer is increased, the short-circuit current is reduced, and the short-circuit resistance of the on-load voltage-regulating isolation transformer is improved.

Most of the existing high-impedance isolation transformers are fixed in the shell in the using process and radiate heat generated by the isolation transformer through radiating holes arranged on the shell, meanwhile, in order to prevent dust from entering the shell, most of the dust screens are arranged at the heat dissipation holes to achieve the purpose of dust prevention, the dust screen filters and shields dust and impurities entering the air hole, but the dust screen at the heat dissipation hole does not have the function of timely shaking and dropping dust, although the dust screen at the air inlet can prevent dust from entering the shell when in use, the dust is easy to adhere, accumulate and block on the dust screen to cause the reduction of the ventilation efficiency at the air inlet, and then influence the normal heat dissipation operation of high impedance isolation transformer, can not satisfy the user demand, therefore we have provided a novel high impedance isolation transformer for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcomings existing in the prior art and providing a novel high-impedance isolation transformer.

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

a novel high-impedance isolation transformer comprises a shell with an opening at the front side and a high-impedance isolation transformer body fixedly installed in the shell, wherein a mounting hole is formed in the inner wall of the bottom of the shell, a first dustproof net is movably sleeved in the mounting hole and is fastened at the bottom of the shell in a threaded manner, a heat dissipation fan is embedded in the inner wall of the top of the shell, an air outlet is formed in the bottom of the heat dissipation fan, an air outlet cover is fixedly installed at the bottom of the heat dissipation fan, a sleeve is fixedly sleeved at the top of the shell and is communicated with an air inlet of the heat dissipation fan, a driving motor is fixedly installed on the right side of the sleeve, an output shaft of the driving motor extends into the sleeve and is fixedly installed with a rotating shaft, the left end of the rotating shaft is rotatably installed with the inner wall of the left side of the sleeve, two eccentric wheels are fixedly sleeved on the, the ball is positioned above the corresponding eccentric wheel and matched with the eccentric wheel, the top end of the inner tube extends to the upper part of the sleeve and is arranged into an inclined plane, a second dustproof net which is obliquely arranged is movably sleeved in the inner tube, the top part of the second dustproof net is parallel and level to the top end of the inner tube, the slope of the second dustproof net is the same as that of the top end of the inner tube, L-shaped positioning rods are fixedly arranged on both sides of the inner tube, two L-shaped positioning rods are symmetrically arranged, rectangular grooves are respectively formed in both sides of the top part of the sleeve, the bottom ends of the L-shaped positioning rods extend into the corresponding rectangular grooves, the rectangular grooves are in sliding connection with the corresponding L-shaped positioning rods, a first spring is fixedly arranged between the bottom ends of the L-shaped positioning rods and the inner walls of the bottoms of the corresponding rectangular grooves, fixed blocks are fixedly arranged on both side inner walls of the inner tube, the tops, a clamping groove is formed in the right side of the rectangular clamping rod on the right side of the two rectangular clamping rods, an L-shaped clamping rod is movably clamped in the clamping groove, the right side of the L-shaped clamping rod extends out of the inner pipe, the inner pipe is sleeved on the L-shaped clamping rod in a sliding mode, and a second spring is fixedly mounted between the inner wall of the right side of the L-shaped clamping rod and the right side of the inner pipe.

Preferably, the bottom both sides of first dust screen are equal fixed mounting have L shape installation pole, and two L shape installation poles are symmetrical to be set up, and the bottom of L shape installation pole extends to the below of casing, and two thread grooves have been seted up to the bottom of casing, and thread groove internal thread cover is equipped with fastening bolt, and L shape installation pole thread bush is established on corresponding fastening bolt.

Preferably, a limiting hole is formed in the inner wall of one side, away from each other, of each rectangular groove, a limiting block is fixedly mounted on one side, away from each other, of each L-shaped positioning rod, and the limiting blocks are connected with the corresponding limiting holes in a sliding mode.

Preferably, a rotating groove is formed in the inner wall of the left side of the sleeve, a bearing is fixedly mounted between the inner wall of the top of the rotating groove and the inner wall of the bottom of the rotating groove, and the inner side of an inner ring of the bearing is fixedly connected with the outer side of the rotating shaft.

Preferably, the top of the fixing block is provided with a first rectangular hole, and the inner wall of the first rectangular hole is in sliding connection with the outer side of the corresponding rectangular clamping rod.

Preferably, a second rectangular hole is formed in the inner wall of the right side of the inner tube, the inner wall of the second rectangular hole is connected with the outer side of the L-shaped clamping rod in a sliding mode, a sliding groove is formed in the bottom of the L-shaped clamping rod, a sliding block is fixedly mounted on the inner wall of the bottom of the second rectangular hole, and the sliding block is connected with the sliding groove in a sliding mode.

Preferably, the distance between the top of the rotating shaft and the bottom of the ball is smaller than the distance between the bottom of the rotating shaft and the bottom of the eccentric wheel.

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

through the casing, the high-barrier isolation transformer body, the mounting hole, the first dust screen, the heat dissipation fan, the sleeve, the driving motor, the rotating shaft, the eccentric wheels, the inner pipe, the second dust screen, the rectangular groove, the L-shaped positioning rod, the first spring, the fixing block, the rectangular clamping rod, the clamping groove, the L-shaped clamping rod and the second spring are matched, the heat dissipation fan is started to extract outside air through an air inlet of the heat dissipation fan, the outside air passes through the second dust screen and blows the inside of the casing through an air outlet of the heat dissipation fan, the heat dissipation efficiency is improved, the heat inside the casing is discharged to the outside through the first dust screen, the second dust screen filters the entering air, the filtered dust impurities are blocked and accumulated at the top of the second dust screen, when the dust impurities at the top of the second dust screen need to be shaken off and cleaned, the driving motor is started to drive the two eccentric wheels to rotate through the rotating shaft, when the eccentric wheel rotates for the first half circle, the eccentric wheel collides with the corresponding ball gradually, so that the two balls drive the inner pipe to move upwards and vibrate simultaneously, the inner pipe drives the two L-shaped positioning rods to slide upwards in the corresponding rectangular grooves respectively and stretch the first spring, the inner pipe drives the second dust screen to move upwards and vibrate, under the vibration force, dust accumulated at the top of the second dust screen gradually falls off along the inclined plane of the second dust screen, when the eccentric wheel rotates for the second half circle, the extrusion force on the ball is gradually released and is separated from the ball, at the moment, the elastic force of the two first springs is reset, the inner pipe is driven by the two L-shaped rods to move downwards and reset simultaneously, the inner pipe drives the second dust screen to move downwards and reset, the eccentric wheel continuously rotates, the second dust screen can be circularly driven to be in a continuous up-and-down vibration state, and the dust particles adhered on the second dust screen can be effectively shaken downwards by matching with the inclined arrangement, when the second dust screen needs to be taken down for cleaning, the L-shaped clamping rod is pulled rightwards to move out of the clamping groove and compress the second spring, and then the second dust screen is pulled upwards to be taken out of the inner pipe for cleaning or replacing.

The utility model relates to a rationally, be convenient for the circulation drive second dust screen and be in and last vibrations state from top to bottom, the slope of deuterogamy second dust screen sets up the mode, can effectively shake the accumulational dust particle of adhesion on the second dust screen down and fall, alleviates adhesion blocking phenomenon, guarantees normal radiating work, also can effectively reduce the workman and dismantle the frequency of clearance, and be convenient for take off the second dust screen fast and clear up or change, is favorable to the use.

Drawings

Fig. 1 is a schematic sectional structural view of a novel high-impedance isolation transformer provided by the present invention;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is an enlarged schematic structural view of a portion B in fig. 2.

In the figure: the transformer comprises a shell 1, a high-barrier isolation transformer body 2, a mounting hole 3, a first dust screen 4, a heat dissipation fan 5, a sleeve 6, a driving motor 7, a rotating shaft 8, an eccentric wheel 9, an inner pipe 10, a second dust screen 11, a rectangular groove 12, a 13L-shaped positioning rod, a first spring 14, a fixed block 15, a rectangular clamping rod 16, a clamping groove 17, an L-shaped clamping rod 18 and a second spring 19.

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. 1-3, a novel high impedance isolation transformer comprises a housing 1 with an opening at the front side and a high impedance isolation transformer body 2 fixedly installed in the housing 1, a mounting hole 3 is formed on the inner wall of the bottom of the housing 1, a first dust screen 4 is movably sleeved in the mounting hole 3, the first dust screen 4 is fastened at the bottom of the housing 1 through screw threads, a heat dissipation fan 5 is embedded on the inner wall of the top of the housing 1, an air outlet is formed at the bottom of the heat dissipation fan 5, an air outlet cover is fixedly installed at the bottom of the heat dissipation fan 5, a sleeve 6 is fixedly sleeved at the top of the housing 1, the sleeve 6 is communicated with an air inlet of the heat dissipation fan 5, a driving motor 7 is fixedly installed at the right side of the sleeve 6, an output shaft of the driving motor 7 extends into the sleeve 6 and is fixedly installed with a rotating shaft 8, the left end of the rotating shaft 8 is rotatably installed, an inner tube 10 positioned above the rotating shaft 8 is slidably sleeved in the sleeve 6, balls are embedded on two sides of the bottom of the inner tube 10, the balls are positioned above the corresponding eccentric wheel 9 and matched with the eccentric wheel 9, the top end of the inner tube 10 extends to the upper side of the sleeve 6 and is provided with an inclined surface, a second dust screen 11 which is obliquely arranged is movably sleeved in the inner tube 10, the top of the second dust screen 11 is flush with the top end of the inner tube 10 and has the same slope, L-shaped positioning rods 13 are fixedly installed on two sides of the inner tube 10, the two L-shaped positioning rods 13 are symmetrically arranged, rectangular grooves 12 are formed in two sides of the top of the sleeve 6, the bottom ends of the L-shaped positioning rods 13 extend into the corresponding rectangular grooves 12, the rectangular grooves 12 are in sliding connection with the corresponding L-shaped positioning rods 13, first springs 14 are fixedly installed between the bottom ends of the L-shaped positioning rods 13 and the inner walls of the, the top of the fixed block 15 is movably contacted with the bottom of the second dust screen 11, rectangular clamping rods 16 are fixedly arranged on both sides of the bottom of the second dust screen 11, the fixed block 15 is movably sleeved on the corresponding rectangular clamping rods 16, a clamping groove 17 is formed in the right side of the rectangular clamping rod 16 positioned on the right side in the two rectangular clamping rods 16, an L-shaped clamping rod 18 is movably clamped in the clamping groove 17, the right side of the L-shaped clamping rod 18 extends out of the inner tube 10, the inner tube 10 is slidably sleeved on the L-shaped clamping rod 18, and a second spring 19 is fixedly arranged between the inner wall of the right side of the L-shaped clamping rod 18 and the right side of the inner tube 10. Also can effectively reduce the workman and dismantle the frequency of clearance, and be convenient for take off second dust screen 11 fast and clear up or change, be favorable to using.

In the utility model, L-shaped installation rods are fixedly arranged on both sides of the bottom of the first dust screen 4, the two L-shaped installation rods are symmetrically arranged, the bottom of the L-shaped installation rods extends to the lower part of the shell 1, two thread grooves are arranged on the bottom of the shell 1, a fastening bolt is sleeved in the thread grooves, the L-shaped installation rods are sleeved on the corresponding fastening bolt in a thread way, limiting holes are arranged on the inner wall of one side, away from each other, of the two rectangular grooves 12, a limiting block is fixedly arranged on one side, away from each other, of the two L-shaped positioning rods 13, the limiting block is in sliding connection with the corresponding limiting hole, a rotating groove is arranged on the inner wall on the left side of the sleeve 6, a bearing is fixedly arranged between the inner wall on the top and the inner wall on the bottom of the rotating groove, the inner side of the bearing is fixedly connected with the outer side of the rotating shaft 8, a first rectangular hole is arranged, the right inner wall of the inner tube 10 is provided with a second rectangular hole, the inner wall of the second rectangular hole is connected with the outer side of the L-shaped clamping rod 18 in a sliding way, the bottom of the L-shaped clamping rod 18 is provided with a sliding groove, the inner wall of the bottom of the second rectangular hole is fixedly provided with a sliding block, the sliding block is connected with the sliding groove in a sliding way, the distance between the top of the rotating shaft 8 and the bottom of the ball is smaller than the distance between the bottom of the rotating shaft 8 and the bottom of the eccentric wheel 9, the utility model has reasonable design, is convenient to circularly drive the second dust screen 11 to be in a continuous up-and-down vibration state, and can effectively shake down the dust particles adhered and accumulated on the second dust screen 11 by matching with the inclined arrangement mode of the second dust screen 11, relieve the adhesion blocking phenomenon, ensure normal heat dissipation work, also effectively reduce the frequency of disassembling and cleaning of workers, and facilitate quick taking down the, is beneficial to use.

The working principle is as follows: when the heat dissipation device is used, when heat dissipation operation is performed on the interior of the shell 1, the heat dissipation fan 5 is started, the heat dissipation fan 5 extracts outside air through the air inlet, the outside air passes through the second dust screen 11 and blows the interior of the shell 1 through the air outlet of the heat dissipation fan 5, under the action of air blowing, the flowing speed of heat in the shell 1 is increased, the heat dissipation efficiency is improved, meanwhile, the heat in the shell 1 passes through the first dust screen 4 and is discharged to the outside, the second dust screen 11 filters the entering air, filtered dust impurities are blocked and accumulated at the top of the second dust screen 11, and the first dust screen 4 can prevent dust from entering the interior of the shell 1;

when the second dust screen 11 is used for a long time, a large amount of dust and impurities are accumulated on the top of the second dust screen, when the dust and impurities on the top of the second dust screen 11 need to be shaken off and cleaned, the driving motor 7 is started, the output shaft of the driving motor 7 drives the rotating shaft 8 to rotate, the rotating shaft 8 drives the two eccentric wheels 9 to rotate, the eccentric wheels 9 collide with the corresponding balls gradually during the first half turn, under the collision force, the two balls simultaneously drive the inner pipe 10 to move upwards and vibrate, the inner pipe 10 drives the two L-shaped positioning rods 13 to slide upwards in the corresponding rectangular grooves 12 respectively, the corresponding first springs 14 are stretched while the L-shaped positioning rods 13 move upwards, meanwhile, the inner pipe 10 drives the second dust screen 11 to move upwards and vibrate, under the vibration force, the dust accumulated on the top of the second dust screen 11 gradually drops off along the inclined plane of the second dust screen 11, when the eccentric wheels 9 rotate for the second half turn, the extrusion force on the balls is gradually released and the balls are separated, the first spring 14 in a stretching state is gradually reset at the moment, the elastic force of the first spring 14 drives the corresponding L-shaped rods 13 to move downwards, the two L-shaped rods 13 simultaneously drive the inner pipe 10 to move downwards to reset, the inner pipe 10 drives the second dust screen 11 to move downwards to reset, the eccentric wheel 9 continuously rotates, the second dust screen 11 can be circularly driven to be in a continuous up-down vibration state under the action of the eccentric wheel 9, and dust particles adhered to the second dust screen 11 can be effectively shaken downwards by matching with the inclined arrangement mode of the second dust screen 11, so that the adhesion blocking phenomenon is relieved, and the frequency of workers for disassembling and cleaning can be effectively reduced;

when the second dust screen 11 needs to be taken down for cleaning, the L-shaped clamping rod 18 is pulled rightwards, the L-shaped clamping rod 18 is moved out from the clamping groove 17 rightwards and compresses the second spring 19, so that the fixation of the second dust screen 11 is released, the second dust screen 11 is pulled upwards, the second dust screen 11 drives the two rectangular clamping rods 16 to move out from the corresponding first rectangular holes respectively, and the second dust screen 11 can be taken out from the inner pipe 10 for cleaning or replacing.

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 novel high-impedance isolation transformer comprises a shell (1) with an opening at the front side and a high-impedance isolation transformer body (2) fixedly installed in the shell (1), and is characterized in that a mounting hole (3) is formed in the inner wall of the bottom of the shell (1), a first dust screen (4) is movably sleeved in the mounting hole (3), the first dust screen (4) is fastened at the bottom of the shell (1) in a threaded manner, a heat dissipation fan (5) is embedded in the inner wall of the top of the shell (1), an air outlet is formed in the bottom of the heat dissipation fan (5), an air outlet cover is fixedly installed at the bottom of the heat dissipation fan (5), a sleeve (6) is fixedly sleeved at the top of the shell (1), the sleeve (6) is communicated with an air inlet of the heat dissipation fan (5), a driving motor (7) is fixedly installed on the right side of the sleeve (6), an output shaft of the driving motor (7) extends into the sleeve (6) and is, the left end of a rotating shaft (8) is rotatably installed with the inner wall of the left side of a sleeve (6), two eccentric wheels (9) are fixedly sleeved on the rotating shaft (8), an inner tube (10) positioned above the rotating shaft (8) is sleeved in the sleeve (6) in a sliding manner, balls are embedded on two sides of the bottom of the inner tube (10), the balls are positioned above the corresponding eccentric wheels (9) and matched with the eccentric wheels (9), the top end of the inner tube (10) extends to the upper side of the sleeve (6) and is arranged to be an inclined plane, a second dust screen (11) which is obliquely arranged is movably sleeved in the inner tube (10), the top of the second dust screen (11) is parallel and level with the top end of the inner tube (10) and has the same slope, L-shaped positioning rods (13) are fixedly installed on two sides of the inner tube (10), the two L-shaped positioning rods (13) are symmetrically arranged, rectangular grooves (12) are formed in two sides of the top of the sleeve (6, rectangular channel (12) and the L shape locating lever (13) sliding connection that corresponds, fixed mounting has first spring (14) between the bottom of L shape locating lever (13) and the bottom inner wall of the rectangular channel (12) that corresponds, equal fixed mounting has fixed block (15) on the both sides inner wall of inner tube (10), the top of fixed block (15) and the bottom movable contact of second dust screen (11), the equal fixed mounting in bottom both sides of second dust screen (11) has rectangle kelly (16), fixed block (15) movable sleeve is established on the rectangle kelly (16) that corresponds, draw-in groove (17) have been seted up on the right side of the rectangle kelly (16) that is located the right side in two rectangle kelies (16), movable card is equipped with L shape kelly (18) in draw-in groove (17), the right side of L shape kelly (18) extends to outside inner tube (10), inner tube (10) sliding sleeve is established on L shape kelly (18), fixed mounting has second spring (14) between the right side inner wall of L shape kelly (18) and the right side of inner tube (10), ( 19).

2. The novel high-impedance isolation transformer according to claim 1, wherein L-shaped mounting rods are fixedly mounted on both sides of the bottom of the first dust screen (4), the two L-shaped mounting rods are symmetrically arranged, the bottom of each L-shaped mounting rod extends to the lower side of the housing (1), two thread grooves are formed in the bottom of the housing (1), fastening bolts are sleeved in the thread grooves, and the corresponding fastening bolts are sleeved with the L-shaped mounting rods in a threaded manner.

3. The novel high-impedance isolation transformer of claim 1, wherein the inner walls of the two rectangular grooves (12) at the sides away from each other are provided with limiting holes, the sides of the two L-shaped positioning rods (13) at the sides away from each other are fixedly provided with limiting blocks, and the limiting blocks are slidably connected with the corresponding limiting holes.

4. The novel high-impedance isolation transformer according to claim 1, wherein a rotating groove is formed on the left inner wall of the sleeve (6), a bearing is fixedly installed between the top inner wall and the bottom inner wall of the rotating groove, and the inner side of an inner ring of the bearing is fixedly connected with the outer side of the rotating shaft (8).

5. The novel high-impedance isolation transformer according to claim 1, wherein a first rectangular hole is formed at the top of the fixing block (15), and the inner wall of the first rectangular hole is slidably connected with the outer side of the corresponding rectangular clamping rod (16).

6. The novel high-impedance isolation transformer according to claim 1, wherein a second rectangular hole is formed in the right inner wall of the inner tube (10), the inner wall of the second rectangular hole is slidably connected with the outer side of the L-shaped clamping rod (18), a sliding groove is formed in the bottom of the L-shaped clamping rod (18), a sliding block is fixedly mounted on the inner wall of the bottom of the second rectangular hole, and the sliding block is slidably connected with the sliding groove.

7. The new high impedance isolation transformer of claim 1, wherein the distance between the top of the shaft (8) and the bottom of the balls is smaller than the distance between the bottom of the shaft (8) and the bottom of the eccentric (9).