Dry-type transformer
By designing a detachable filter structure and buffer system, the problems of easy clogging of dry-type transformer filters and short circuits caused by vibration have been solved, achieving efficient maintenance and stable operation of the transformer, reducing the risk of fire, and extending its service life.
Patent Information
- Application Number
- CN202423181928.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-23
AI Technical Summary
The filters of existing dry-type transformers are prone to clogging, the efficiency of the air-cooling device is reduced, maintenance is inconvenient, there is a risk of fire, and vibration can easily cause short circuits, affecting the stability and safety of the transformer.
The design incorporates a detachable filter structure and a buffer system. The filter can be easily replaced by bolts and threaded grooves, and the filter can be easily cleaned by the fit between the ribs and the slide. Damping rods and buffer plates are used to absorb vibration and prevent short circuits.
It improves filter replacement efficiency, reduces dust clogging and the risk of electrostatic fire, enhances the stability and safety of the transformer, and extends its service life.
Smart Images
Figure CN223757353U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to transformer technical field especially relates to a dry-type transformer. BACKGROUND
[0002] The transformer is the basic equipment of power transmission and distribution, which is used to change AC voltage by electromagnetic induction principle, and is widely used in industry, agriculture, transportation, urban community and other fields. According to the dry and wet types, it can be divided into dry-type transformer and oil-immersed transformer. The dry-type transformer is widely used in local lighting, high-rise buildings, airports, wharfs and CNC mechanical equipment. Simply speaking, the dry-type transformer refers to the transformer whose iron core and winding are not immersed in insulating oil. Because the dry-type transformer has the advantages of strong short-circuit resistance, small maintenance workload, high operation efficiency, small size and low noise, it is often used in places with high performance requirements such as fire prevention and explosion prevention.
[0003] In the prior art, the iron core and winding of the dry-type transformer are often cast and sealed with epoxy resin, and are cooled by natural air cooling or fan cooling. The fan is not convenient to disassemble and maintain, and the filter screen is easy to be blocked after long-term use, which greatly affects the working efficiency of the air cooling device, is not conducive to maintaining the good working temperature of the transformer, and requires a lot of time for maintenance of the device in the later period. Therefore, in order to solve the above problems, the utility model provides a dry-type transformer. UTILITY MODEL CONTENT
[0004] In view of the deficiencies of the prior art, the utility model provides a dry-type transformer. By rotating the clamping between the adjusting bolt and the threaded groove, the filter screen can be conveniently replaced, the filter screen is prevented from being blocked, the replacement efficiency of the filter screen is improved, the maintenance and repair of the device by the staff are facilitated, the air cooling and cooling device maintains good working efficiency, and the static electricity caused by too much dust and impurities is prevented from causing fire.
[0005] The utility model provides the following technical scheme: a dry-type transformer, including support frame, the support frame quantity is three and evenly distributes, support frame upper portion fixed mounting has air cooler, the air cooler quantity is two and symmetrically distributes in front and back, air cooler front portion fixed mounting has fixed box, fixed box inner chamber and air cooler inner chamber fixed connection, the filter frame of movable sleeve joint is established in fixed box inner chamber, the filter frame upper portion fixed mounting has handrail, the filter frame inner chamber fixed mounting has filter screen, the filter frame left and right two parts respectively fixed mounting has the ridge, the left and right sides of fixed box inner chamber are respectively provided with the sliding groove one, the sliding groove one and the ridge are mutually matched, the sliding groove one in and located fixed box left and right two parts respectively movable sleeve joint has bolt, the ridge middle is provided with threaded groove, the threaded groove and bolt clamping, through the clamping of adjusting bolt and threaded groove, promote the replacement efficiency of filter screen, avoid filter screen under long time use to have a lot of dust and form the blockage, be favorable to air cooling and cooling device maintains good working efficiency.
[0006] Preferably, the right part of the air cooler is fixedly installed with a motor, the motor output shaft is movably sleeved in the right part of the air cooler inner cavity, a rotating roller is fixedly sleeved on the motor output shaft, the rotating roller is symmetrically and uniformly fixedly installed with blades, the upper part of the air cooler is movably connected with a cover plate, an air outlet is formed in the upper part of the air cooler behind the cover plate, the entire rotating roller can be taken off from the motor output shaft by opening the cover plate, so that the blades can be cleaned, the dust and other impurities contained in the cooling airflow are reduced, and the fire caused by more static electricity is prevented.
[0007] Preferably, the damping rods are uniformly fixedly installed in the support frame inner cavity, the number of the damping rods is three, the buffer plates are fixedly installed at the telescopic ends of the damping rods, the slide grooves two are respectively formed in the left and right sides of the support frame, the buffer plates and the slide grooves two are matched with each other, the lower clamping pieces are fixedly installed on the upper parts of the buffer plates, the slight vibration generated when the upper device works is buffered through the buffer plates, when larger vibration occurs, the lower clamping pieces drive the buffer plates to move in the slide grooves two, the vibration can be absorbed by the damping rods, the connection of various lines in the device is avoided from being affected by the vibration, and the risk that the lines are short-circuited is reduced.
[0008] Preferably, the damping rods are uniformly fixedly installed in the support frame inner cavity, the number of the damping rods is three, the buffer plates are fixedly installed at the telescopic ends of the damping rods, the slide grooves two are respectively formed in the left and right sides of the support frame, the buffer plates and the slide grooves two are matched with each other, the lower clamping pieces are fixedly installed on the upper parts of the buffer plates, the slight vibration generated when the upper device works is buffered through the buffer plates, when larger vibration occurs, the lower clamping pieces drive the buffer plates to move in the slide grooves two, the vibration can be absorbed by the damping rods, the connection of various lines in the device is avoided from being affected by the vibration, and the risk that the lines are short-circuited is reduced.
[0009] Preferably, the upper clamping pieces are fixedly installed on the upper parts of the variable voltage coils, the upper iron yokes are fixedly installed in the inner cavities of the upper clamping pieces, the high-voltage terminals are uniformly fixedly installed at the front parts of the upper clamping pieces, the number of the high-voltage terminals is three, the low-voltage outgoing copper bars are fixedly installed on the upper parts of the upper clamping pieces, the lifting rings are uniformly fixedly installed on the upper parts of the upper clamping pieces in front of the low-voltage outgoing copper bars, and the number of the lifting rings is four.
[0010] Compared with the prior art, the air cooler has the following beneficial effects:
[0011] 1, by rotating the bolt to make its with the thread groove between the carding is disconnected, using the strip and sliding groove one of the agreement to pull the handrail up can be removed from the filter frame fixed box cavity, convenient to clean the filter screen replacement, convenient for staff to maintain and maintain the device later, improve the replacement efficiency of filter screen, avoid filter screen in long time use under the adhesion of a large amount of dust and form blockage, conducive to the air cooling device to maintain good working efficiency, by opening the cover can be taken off the entire rotating roller from the motor output shaft, in order to clean the fan blade, reduce the dust and other impurities contained in the cooling airflow, prevent more static electricity and fire.
[0012] 2, in the device working process by buffer plate to the upper device work when the slight vibration buffer, when a larger vibration, the lower clamp piece buffer plate in the sliding groove two movement, damping rod can absorb the vibration, avoid the vibration influence device in a variety of line connection, reduce the risk of short circuit of line, enhance the safety and reliability of transformer, ensure the normal operation of transformer, is conducive to improve the stability of the whole transformer, prevent vibration too big to the transformer internal component cause big damage, make the service life of transformer is extended. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is the schematic diagram of the external structure of the utility model;
[0014] Figure 2 is the schematic diagram of the air cooling structure of the utility model;
[0015] Figure 3 is the schematic diagram of the air cooling structure section of the utility model;
[0016] Figure 4 is the schematic diagram of the air cooling structure inside of the utility model;
[0017] Figure 5 is the schematic diagram of the filter screen fixing structure of the utility model;
[0018] Figure 6 is the schematic diagram of the buffer structure of the utility model.
[0019] In the drawing: 1, support frame; 2, air cooler; 3, fixed box; 4, filter frame; 5, handrail; 6, filter screen; 7, strip; 8, sliding groove one; 9, bolt; 10, thread groove; 11, motor; 12, rotating roller; 13, fan blade; 14, cover; 15, air outlet; 16, damping rod; 17, buffer plate; 18, sliding groove two; 19, lower clamp piece; 20, cushion block; 21, transformer coil; 22, high-voltage tapping; 23, high-voltage connecting rod; 24, upper clamp piece; 25, upper yoke; 26, high-voltage terminal; 27, low-voltage copper bar; 28, lifting ring. DETAILED DESCRIPTION
[0020] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made belong to the scope of protection of the present application.
[0021] Please refer to Figures 1-6 The dry-type transformer comprises a support frame 1, the support frame 1 is three in number and is uniformly distributed, a forced air cooler 2 is fixedly installed on the upper portion of the support frame 1, the forced air cooler 2 is two in number and is symmetrically distributed front and back, a fixed box 3 is fixedly installed on the front portion of the forced air cooler 2, the inner cavity of the fixed box 3 is fixedly connected with the inner cavity of the forced air cooler 2, a filter frame 4 is movably sleeved in the inner cavity of the fixed box 3, a handrail 5 is fixedly installed on the upper portion of the filter frame 4, a filter screen 6 is fixedly installed in the inner cavity of the filter frame 4, a ridge strip 7 is fixedly installed on the left and right portions of the filter frame 4 respectively, a sliding groove one 8 is formed on the left and right sides of the inner cavity of the fixed box 3 respectively, the sliding groove one 8 and the ridge strip 7 are mutually fitted, a bolt 9 is movably sleeved in the sliding groove one 8 and is located on the left and right portions of the fixed box 3 respectively, a threaded groove 10 is formed in the ridge strip 7, the threaded groove 10 is clamped with the bolt 9, a motor 11 is fixedly installed on the right portion of the forced air cooler 2, the output shaft of the motor 11 is movably sleeved in the right portion of the inner cavity of the forced air cooler 2, a rotating roller 12 is fixedly sleeved on the output shaft of the motor 11, a fan blade 13 is symmetrically and uniformly fixedly installed on the rotating roller 12, a cover plate 14 is movably connected with the upper portion of the forced air cooler 2 through a shaft, an air outlet 15 is formed on the upper portion of the forced air cooler 2 and is located behind the cover plate 14, when the transformer works, the motor 11 is started, the rotating roller 12 is driven to rotate through the output shaft of the motor 11, the fan blade 13 on the rotating roller 12 absorbs air from the fixed box 3 into the inner cavity of the forced air cooler 2 and discharges the air from the air outlet 15 to cool the transformer, when the device is maintained, the clamping between the bolt 9 and the threaded groove 10 is disconnected by rotating the bolt 9, the filter frame 4 can be moved out of the inner cavity of the fixed box 3 by pulling the handrail 5 upward by the fitting of the ridge strip 7 and the sliding groove one 8, so that the filter screen 6 is cleaned or the whole filter frame 4 is replaced, so that the filter screen 6 is conveniently and quickly disassembled and replaced, the staff can conveniently maintain and maintain the device in the later period, the replacement efficiency of the filter screen 6 is improved, the filter screen 6 is prevented from being blocked due to a large amount of dust adhered under long-time use, the wind-cooled cooling device is kept in good working efficiency, the whole rotating roller 12 can be taken off from the output shaft of the motor 11 by opening the cover plate 14, so as to clean the fan blade 13, reduce the dust and other impurities contained in the cooling airflow, and prevent fire caused by more static electricity;
[0022] The damping rod 16 is uniformly fixed and installed in the inner cavity of the support frame 1, the number of the damping rod 16 is three, the damping rod 16 is fixed and installed at the telescopic end, the buffer plate 17 is arranged at the left and right sides of the support frame 1, the buffer plate 17 is matched with the sliding groove two 18, the lower clamp 19 is fixed and installed at the upper portion of the buffer plate 17, the cushion block 20 is fixed and installed at the upper portion of the lower clamp 19, the variable voltage coil 21 is fixed and installed at the upper portion of the cushion block 20, the number of the variable voltage coil 21 is three, the high-voltage tap 22 is fixed and installed at the front portion of the variable voltage coil 21, the high-voltage connecting rod 23 is drivingly connected between the three variable voltage coils 21, the number of the high-voltage connecting rod 23 is three, the upper clamp 24 is fixed and installed at the upper portion of the variable voltage coil 21, the upper yoke 25 is fixed and installed in the inner cavity of the upper clamp 24, the high-voltage terminal 26 is uniformly fixed and installed at the front portion of the upper clamp 24, the number of the high-voltage terminal 26 is three, the low-voltage copper bar 27 is fixed and installed at the upper portion of the upper clamp 24, the lifting ring 28 is uniformly fixed and installed at the upper portion of the upper clamp 24 and located at the front portion of the low-voltage copper bar 27, the number of the lifting ring 28 is four, the slight vibration generated during the working of the upper device is buffered by the buffer plate 17 during the working of the device, when the larger vibration occurs, the lower clamp 19 drives the buffer plate 17 to move in the sliding groove two 18, the vibration can be absorbed by the damping rod 16, the connection of various lines in the device is avoided from being affected by the vibration, the risk of short circuit of the line is reduced, the safety and reliability of the transformer is enhanced, the normal operation of the transformer is ensured, the stability of the whole transformer is improved, the damage of the internal components of the transformer caused by the excessive vibration is prevented, the service life of the transformer is prolonged.
[0023] Working principle: when the variable voltage coil 21 works, the motor 11 is started, the rotating roller 12 is driven to rotate through the output shaft of the motor 11, the fan blades 13 on the rotating roller 12 absorb air from the fixed box 3 into the inner cavity of the air cooler 2, and the air is discharged from the air outlet 15 to cool the variable voltage device, when the device is maintained, the clamping between the rotating bolt 9 and the threaded groove 10 is disconnected, the handrail 5 is pulled upward by the cooperation of the ridge 7 and the sliding groove one 8, the filter frame 4 can be removed from the inner cavity of the fixed box 3, so that the filter screen 6 is cleaned or the whole filter frame 4 is replaced, the rotating roller 12 can be taken off from the output shaft of the motor 11 by opening the cover plate 14, so as to clean the fan blades 13, the slight vibration generated during the working of the upper device is buffered by the buffer plate 17 during the working of the device, when the larger vibration occurs, the lower clamp 19 drives the buffer plate 17 to move in the sliding groove two 18, the vibration can be absorbed by the damping rod 16, the influence of the vibration is reduced.
Claims
1. Dry-type transformer comprising a support frame (1), characterized in that: The support frame (1) is three in number and is uniformly distributed, the upper part of the support frame (1) is fixedly installed with air coolers (2), the air coolers (2) are two in number and are symmetrically distributed front and back, the front part of the air cooler (2) is fixedly installed with a fixed box (3), the inner cavity of the fixed box (3) is fixedly connected with the inner cavity of the air cooler (2), the inner cavity of the fixed box (3) is movably sleeved with a filter frame (4), the upper part of the filter frame (4) is fixedly installed with a handrail (5), the inner cavity of the filter frame (4) is fixedly installed with a filter screen (6), the left and right parts of the filter frame (4) are respectively fixedly installed with a batten (7), the left and right sides of the inner cavity of the fixed box (3) are respectively provided with a sliding groove (8), the sliding groove (8) and the batten (7) are matched with each other, the sliding groove (8) and the batten (7) are movably sleeved with a bolt (9), the batten (7) is provided with a threaded groove (10), and the threaded groove (10) is connected with the bolt (9).
2. A dry-type transformer according to claim 1, characterized in that: The right part of the air cooler (2) is fixedly installed with a motor (11), the output shaft of the motor (11) is movably sleeved in the right part of the inner cavity of the air cooler (2), the output shaft of the motor (11) is fixedly sleeved with a rotating roller (12), the rotating roller (12) is symmetrically and uniformly fixedly installed with a fan blade (13), the upper part of the air cooler (2) is movably connected with a cover plate (14), and the upper part of the air cooler (2) is provided with an air outlet (15) behind the cover plate (14).
3. A dry-type transformer according to claim 1, characterized in that: The inner cavity of the support frame (1) is uniformly fixedly installed with a damping rod (16), the damping rod (16) is three in number, the telescopic end of the damping rod (16) is fixedly installed with a buffer plate (17), the left and right sides of the support frame (1) are respectively provided with a sliding groove (18), the buffer plate (17) and the sliding groove (18) are matched with each other, and the upper part of the buffer plate (17) is fixedly installed with a lower clamping piece (19).
4. A dry-type transformer according to claim 3, characterized in that: The upper part of the lower clamping piece (19) is fixedly installed with a pad (20), the upper part of the pad (20) is fixedly installed with a variable voltage coil (21), the variable voltage coil (21) is three in number, the front part of the variable voltage coil (21) is fixedly installed with a high-voltage tap (22), and the three variable voltage coils (21) are respectively drivingly connected with a high-voltage connecting rod (23), the high-voltage connecting rod (23) is three in number.
5. A dry-type transformer according to claim 4, characterized in that: The upper part of the variable voltage coil (21) is fixedly installed with an upper clamping piece (24), the inner cavity of the upper clamping piece (24) is fixedly installed with an upper yoke (25), the front part of the upper clamping piece (24) is uniformly fixedly installed with a high-voltage terminal (26), the high-voltage terminal (26) is three in number, the upper part of the upper clamping piece (24) is fixedly installed with a low-voltage outgoing copper bar (27), the upper part of the upper clamping piece (24) is uniformly fixedly installed with a lifting ring (28) in front of the low-voltage outgoing copper bar (27), and the lifting ring (28) is four in number.