A step-up transformer with protection and shock absorption function

Abstract

The present invention discloses a step-up transformer with protective shock absorption function, wherein the bottom surface of the inner cavity of the protective box is provided with a shock absorber in a rectangular array, a shock absorber plate group is fixed on the top of the shock absorber, a radiator is arranged inside the shell, and a plurality of heat dissipation pipes communicating with the radiator are arranged on the outer surface of the shell, a circular array of square frame iron cores is fixed on the shock absorber plate group, a primary coil is wound around the outer vertical part of the square frame iron core, and the inner vertical parts of the square frame iron cores are adjacent to each other and wound together through the secondary coil; the front end revolving door of the protective box is locked with the side edge of the opening part through an anti-theft lock, and the top fixed rod of the adjustable bracket passes through the bottom of the protective box and the bottom of the shell in turn and is fixedly connected with the shock absorber, and a centrifugal exhaust fan is arranged at the bottom of the protective box. Its structure effectively solves the pollution caused by the vibration and noise of the transformer to the normal life of residents, and the transformer has better performance in use; the degree of loss caused by fire is reduced to a minimum; and the service life of the transformer is increased.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, in particular to a step-up transformer with protective and shock-absorbing functions. Background Art

[0002] A transformer is a common electrical device that can be used to convert an alternating voltage of a certain value into a voltage of the same frequency of another value; a step-up transformer is a transformer used to convert an alternating voltage of a low value into another alternating voltage of a higher value at the same frequency.

[0003] At present, due to the planning and supporting requirements of the community, it has become a trend to install transformers in buildings. The number of transformers is generally more than three, which can easily generate large noise and vibration during operation; therefore, the buildings below the fifth floor near the transformer room can sense the noise and vibration, so the existing transformer device affects the normal daily life of the residents and also affects the structural stability of the house; at the same time, when the existing transformer is used, it is necessary to increase the number of turns of the secondary coil to increase the voltage from a low voltage to a very large voltage. In this way, increasing the turns ratio to increase the voltage will reduce the heat dissipation effect of the transformer, which can easily cause the transformer to overheat, increase the internal resistance of the transformer, reduce the working efficiency, accelerate the aging of its insulation layer, shorten the life of the transformer, and easily cause the transformer to short-circuit or cause a fire when no heat dissipation device is set. Generally, no fire protection cover or other equipment is set on the outside of the transformer, which will extend to the fire of the adjacent electrical equipment, causing defects such as a large fire, resulting in greater losses after the fire. Summary of the invention

[0004] The purpose of the present invention is to solve the deficiencies of the above-mentioned technology and to design a step-up transformer with protective and shock-absorbing functions that eliminates noise and vibration and has heat dissipation and fire protection effects.

[0005] A step-up transformer with protective shock absorption function designed by the present invention comprises a protective box with a sound-absorbing cotton layer on the inner side, a shell, a plurality of square-frame iron cores and an adjustable bracket; a rectangular array on the bottom surface of the inner cavity of the protective box has at least twelve shock-absorbing devices, a shock-absorbing plate group is fixed on the top of the shock-absorbing device, the top surface of the shock-absorbing plate group is fixed to the shell, a high-voltage insulating pipe sleeve, a low-voltage insulating pipe sleeve and an oil pillow are arranged on the top of the shell, a radiator is arranged inside the shell, and a plurality of heat dissipation pipes communicating with the radiator are arranged on the outer surface of the shell, a plurality of circular arrays of square-frame iron cores are fixed on the shock-absorbing plate group, and the outer vertical parts of each square-frame iron core are wound with a primary coil, and the inner vertical parts of each square-frame iron core are adjacent to each other and wound together through a secondary coil; a revolving door is provided at the front opening of the protective box, and the revolving door is locked with the side edge of the opening by an anti-theft lock, and the top fixing rod of the adjustable bracket passes through the bottom of the protective box and the bottom of the shell in turn and is fixedly connected to the shock-absorbing device, and the edge of the bottom of the protective box has a plurality of exhaust holes, and a centrifugal exhaust fan is installed in each exhaust hole.

[0006] Further preferably, the shock-absorbing plate group includes two hard rubber plates stacked on top of each other and four cross-shaped pads fixed between the two rubber plates; the outer side surfaces of the hard rubber plates are covered and fixed with a layer of sound insulation felt.

[0007] Further preferably, the adjustable bracket includes four adjusting steel pipes with a thickness greater than ten millimeters, a cross brace and a supporting steel pipe sleeved on the bottom end of the adjusting steel pipe; the tops of the four adjusting steel pipes are fixed with a fixing support plate tightly fixed to the bottom of the shock-absorbing device; the four adjusting steel pipes are fixedly connected by the cross brace and at least two groups of cross beams to form a bracket body; a screw hole is provided on the supporting steel pipe, and a plurality of adjusting holes are longitudinally arranged on the adjusting steel pipe, and a butterfly bolt is threaded in the screw hole, and after the length of the adjusting steel pipe is adjusted, the screw rod of the butterfly bolt is correspondingly inserted into an adjusting hole.

[0008] Further preferably, heat dissipation windows are provided at corresponding positions of the protection box and the radiator, and the heat dissipation windows are provided with soundproof shutters.

[0009] Further preferably, a coarse-pore steel mesh is sealed and installed at the lower edge of each exhaust hole.

[0010] Further preferably, a sealing fireproof rubber ring is provided between the edge of the inner side surface of the revolving door and the edge of the opening at the front end of the protection box, and the sealing fireproof rubber ring is fixed to the edge of the inner side surface of the revolving door.

[0011] Further preferably, the primary coils on the outer vertical portions of each frame-shaped iron core are electrically connected to corresponding low-voltage insulating sleeves, respectively.

[0012] Further preferably, the secondary coils of the inner vertical portions of each frame-shaped iron core are electrically connected to the high-voltage insulating sleeve.

[0013] Further preferably, the number of turns on the primary coil is smaller than the number of turns on the secondary coil.

[0014] Further preferably, the side of the revolving door has a groove, the bottom surface of the groove has a through hole, the side edge of the front end opening of the protective box has a lock plate, the lock plate is located on the outside of the sealing fireproof rubber ring, one side of the groove has a through hole connected to the outside, the anti-theft lock includes an alarm mechanism, a spherical lock body with a notch, a lock column crossing the notch and a lock core for controlling the advance and retreat of the lock column; an annular groove is provided on the side of the spherical lock body, a signal line is provided in the annular groove, the signal line is electrically connected to the alarm mechanism, and the alarm mechanism is provided with a text message transmitting mechanism; after the spherical lock body 4 is inserted into the groove, its notch is inserted into the lock plate, and the lock core is buckled into the lock hole of the lock plate.

[0015] The present invention designs a step-up transformer with protective shock-absorbing functions. Its structure effectively solves the pollution caused by the vibration and noise of the transformer to the normal life of residents. In addition, the structure can effectively reduce the damage to the transformer caused by earthquakes; at the same time, it avoids the need for the secondary coil to use a large number of times to increase the voltage, thereby realizing the voltage grading increase without increasing the heat, so that the working efficiency after the boost is further improved, and the transformer has better performance; and through the protection box, even if the transformer catches fire, it will not extend to the surrounding electrical equipment, thereby minimizing the loss caused by the fire; the service life of the transformer is increased under the action of devices such as the radiator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of Example 1;

[0017] Figure 2 is a schematic diagram of the structure inside the housing of Example 1;

[0018] Figure 3 is a schematic structural diagram of the combination of the iron core and the coil of Example 1;

[0019] Figure 4 is a schematic structural diagram of the protection box of Example 1;

[0020] Figure 5 is a schematic structural diagram of a revolving door of Example 1;

[0021] Figure 6 is a schematic diagram of the internal sandwich structure of the protection box of Example 1;

[0022] Figure 7 is a schematic diagram of the adjustable bracket structure of Example 1;

[0023] Figure 8 is a schematic structural diagram of the anti-theft lock of Example 1;

[0024] Fig. 9 It is a schematic structural diagram of the radiator of Example 1. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0026] Embodiment 1:

[0027] like Figure 1-Figure 9 As shown, a step-up transformer with protective shock-absorbing function described in this embodiment includes a protective box 1 with a sound-absorbing cotton layer 18 on the inner side, a shell 2, a plurality of square frame iron cores 21 and an adjustable bracket 10; the bottom surface of the inner cavity of the protective box 1 has at least twelve shock-absorbing devices 6 in a rectangular array, a shock-absorbing plate group 7 is fixed on the top of the shock-absorbing device 6, the top surface of the shock-absorbing plate group 7 is fixed to the shell 2, a high-voltage insulating sleeve 5, a low-voltage insulating sleeve 4 and an oil pillow 3 are arranged on the top of the shell 2, a radiator 25 is arranged inside the shell 2, and a plurality of heat dissipation pipes 26 communicating with the radiator 25 are arranged on the outer surface of the shell 2, and the four A circular array of square-shaped iron cores 23 is fixed on the shock-absorbing plate group 7, and the outer vertical part of each square-shaped iron core 21 is wound with a primary coil 23, and the inner vertical parts of each square-shaped iron core 21 are adjacent to each other and wound together through a secondary coil 22; the front opening part of the protection box 1 is provided with a revolving door 16, and the revolving door 16 is locked with the side edge of the opening part through an anti-theft lock 17, and the top fixing rod of the adjustable bracket 10 passes through the bottom of the protection box 1 and the bottom of the shell 2 in sequence and is fixedly connected to the shock-absorbing device 6, and the edge of the bottom of the protection box 1 is provided with a plurality of exhaust holes, and a centrifugal exhaust fan 8 is installed in each exhaust hole.

[0028] The design principle of the above structure is as follows: when an alternating current is passed through the primary coil of the transformer, an alternating magnetic flux is generated in each iron core, so that a voltage is induced in the secondary coil. When the voltage is increased, the primary coils of each iron core are energized respectively, and magnetic fluxes with the same direction are generated in each iron core at the same time, so that the magnetic flux of the secondary coil is greatly increased, and the voltage increase effect is improved. At the same time, different iron cores of the device can operate independently to achieve the effect of graded voltage increase. When the transformer is working, the vibration of the transformer is transmitted to the ground through the shock-absorbing device and the adjustable bracket, so as to achieve complete isolation from the suspended layer and eliminate noise. The transformer is soundproofed by a protective box with a sound-absorbing cotton layer. The main function of the protective box is to prevent large flames from spreading to nearby electrical equipment and causing a large fire after a fire occurs in the transformer, thereby reducing the degree of fire loss. Under the action of the exhaust fan, the radiator and the heat pipe, the temperature in the protective box and the transformer is reduced to prevent the transformer from overheating, avoiding the increase of the internal resistance of the transformer, the reduction of the working efficiency, the accelerated aging of its insulation layer, and the shortening of the life of the transformer, thereby further improving the performance of the transformer. The shock-absorbing device uses a hydraulic shock absorber that can bear 2 tons of gravity.

[0029] In this embodiment, the shock-absorbing plate set 7 includes two hard rubber plates 71 stacked on top of each other and four cross-shaped pads 72 fixed between the two rubber plates; the outer side of the hard rubber plates 71 is covered with a layer of sound insulation felt. The structure cuts off the connection between the transformer and the structure through the cross-shaped pads 72, thereby achieving better noise elimination performance.

[0030] In this embodiment, the adjustable bracket 10 includes four adjusting steel pipes 101 with a thickness greater than ten millimeters, a cross brace 104, and a supporting steel pipe 102 sleeved on the bottom of the adjusting steel pipe 101; the tops of the four adjusting steel pipes 101 are fixed with a fixing support plate 9 that is tightly fixed to the bottom of the shock absorber 6; the four adjusting steel pipes 101 are fixedly connected through the cross brace 104 and at least two groups of cross beams 103 to form a bracket body; a screw hole is provided on the supporting steel pipe 102, and a plurality of adjusting holes 106 are arranged longitudinally on the adjusting steel pipe 101, and a butterfly bolt 105 is screwed in the screw hole, and after the length of the adjusting steel pipe 101 is adjusted, the screw rod of the butterfly bolt 105 is correspondingly inserted into an adjusting hole 106. The fixing support plate 9 of its structure is welded and fixed to the bottom of the shock absorber 6, and the overall height of the adjustable bracket 10 is adjusted by being located in the bracket body, and the height of the adjustable bracket 10 is positioned in which adjusting hole 106 the butterfly bolt 105 is inserted.

[0031] In this embodiment, the protection box 1 is provided with heat dissipation windows at the corresponding positions of the radiator 25, and the heat dissipation windows are provided with sound insulation shutters 19. Its structure makes the heat dissipation performance of the transformer better.

[0032] In this embodiment, a coarse-mesh steel mesh is sealed at the lower edge of each ventilation hole to prevent birds, insects, etc. from entering the transformer and affecting the normal operation of the transformer.

[0033] In this embodiment, a sealing fireproof rubber ring is provided between the inner side edge of the revolving door 16 and the edge of the opening at the front end of the protection box 1, and the sealing fireproof rubber ring is fixed to the inner side edge of the revolving door 16. Its structure prevents rainwater from entering the transformer and avoids the occurrence of safety accidents.

[0034] In this embodiment, the primary coils 23 of the outer vertical parts of each frame-shaped iron core 21 are electrically connected to the corresponding low-voltage insulating sleeves 4; the secondary coils 22 of the inner vertical parts of each frame-shaped iron core 21 are electrically connected to the high-voltage insulating sleeves 5; the number of turns on the primary coil 23 is less than the number of turns on the secondary coil 22. Its structure is compact and reliable.

[0035] In this embodiment, the side of the revolving door 16 has a groove 161, the bottom surface of the groove 161 has a through hole, the side edge of the front end opening of the protective box 1 has a lock plate 162, the lock plate 162 is located on the outside of the sealing fireproof rubber ring, one side of the groove 161 has a through hole 163 connected to the outside, the anti-theft lock 17 includes an alarm mechanism 179, a spherical lock body 171 with a notch 172, a lock column 173 crossing the notch 172 and a lock core 178 for controlling the advance and retreat of the lock column; an annular groove 175 is provided on the side of the spherical lock body 171, a signal line 174 is provided in the annular groove 175, the signal line 174 is electrically connected to the alarm mechanism 179, and the alarm mechanism 179 is provided with a text message transmitting mechanism 170; after the spherical lock body 171 is inserted into the groove, its notch 172 is inserted into the lock plate 162, and the lock core 178 is buckled into the lock hole 164 of the lock plate 162. Its structure directly hides the anti-theft lock and then locks the revolving door, thereby ensuring that the revolving door is difficult to open violently. The lock body is set to be spherical, so that it has no effective front force point to prevent violent damage; since the side of the spherical lock body is provided with an annular groove, a signal line is provided in the annular groove, the signal line is electrically connected to the alarm mechanism, and the alarm mechanism is provided with a text message transmitting mechanism, when criminals attempt to saw off the lock, they will inevitably saw off the signal line first and send out the alarm signal. It will take some time to saw off the lock afterwards, and this time can be used to ensure that relevant responsible personnel arrive at the scene in time to stop the criminal behavior and even arrest the criminals; thirdly, since a protective cover is put on the outside of the signal line, the signal line can be prevented from being cut by the claws of birds and the like, thereby avoiding false alarms.

[0036] In this embodiment, the protection box 1 has a fire extinguishing hole 14, and the fire extinguishing hole 14 is sealed with a fireproof cover 15. When extinguishing a fire, the fireproof cover 15 is directly opened to inject the fire extinguishing material into the box to perform a fire extinguishing operation. When extinguishing a fire, the protection box prevents the flame from extending to nearby electrical equipment, thereby performing a closed fire extinguishing operation and minimizing the loss of the transformer room. The protective box 1 includes a stainless steel insulating outer box body 11 and a stainless steel insulating board inner box body 12 placed in the stainless steel insulating outer box body 11; a multi-layer interlayer 13 of burn-resistant and high-temperature resistant material is arranged between the inner cavity side wall of the stainless steel insulating outer box body 11 and the stainless steel insulating inner box body 12, and the burn-resistant and high-temperature resistant material interlayer 13 is provided with silicate fiber, asbestos, metal wire, and high-temperature adhesive. The asbestos layer and the silicate fiber layer are arranged alternately, and the thickness of each layer is 2-4mm. The metal wire connects the asbestos layer and the silicate fiber layer together to form a complete sandwich board, and the high-temperature adhesive is coated between the asbestos layer and the silicate fiber layer to form a complete sandwich; the sound-absorbing cotton 18 is sandwiched between each pair of interlayers 13.

[0037] In the above structure, the stainless steel insulating inner box can effectively prevent the flame from spreading from the inside of the box to the outside of the box. The stainless steel insulating box must meet the anti-burning requirements and should maintain sufficient rigidity and integrity under the continuous action of the flame. The role of the interlayer of burn-resistant and high-temperature resistant materials is to insulate, cut off the heat transfer path, and prevent the internal heat from being exported to the outside of the box within the predetermined time, so as to ensure that the temperature outside the protective box remains within an acceptable range, which is conducive to fire extinguishing operations. The material used in the interlayer must meet the requirements of burn resistance and high temperature resistance, and effectively prevent heat transfer under the continuous action of the flame. The role of the lower stainless steel insulating plate is rigid support to ensure that the box is effectively fitted to the protected object without affecting its normal operation. Within the predetermined time, the structure and material should meet the requirements of not burning or deforming at 1093 degrees Celsius for short-class fires and 1300 degrees Celsius for jet fires.

[0038] In this embodiment, the radiator 25 includes a fixing frame 251, a refrigerator 252, a fan 254 and a hood 253. The refrigerator 252 is fixed at the middle of the fixing frame 251, the hood 253 is fixed at the front end of the fixing frame 251, and the fan 254 is fixed in a chamber formed between the hood 253 and the front end of the fixing frame 251; thus, when the fan 254 is started, the hot air is cooled by the refrigerator 252 and then discharged through the hood 253, so that the discharged air is cold air, so that the transformer room remains stable and constant, and the indoor temperature will not increase due to the increase in transformer temperature, thereby preventing other electrical equipment from being affected by high temperature.

[0039] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. A step-up transformer with protective shock absorption function, characterized in that: It comprises a protection box with a sound-absorbing cotton layer on the inner side, a shell, a plurality of square-frame iron cores and an adjustable bracket; the bottom surface of the inner cavity of the protection box has at least twelve shock-absorbing devices in a rectangular array, a shock-absorbing plate group is fixed on the top of the shock-absorbing device, the top surface of the shock-absorbing plate group is fixed to the shell, a high-voltage insulating pipe sleeve, a low-voltage insulating pipe sleeve and an oil pillow are arranged on the top of the shell, a radiator is arranged inside the shell, and a plurality of heat dissipation pipes communicating with the radiator are arranged on the outer surface of the shell, a plurality of square-frame iron cores are fixed on the shock-absorbing plate group in a circular array, and the outer vertical parts of each square-frame iron core are wound with a primary coil, and the inner vertical parts of each square-frame iron core are adjacent to each other and wound together through a secondary coil; the front opening of the protection box is provided with a revolving door, which is locked with the side edge of the opening by an anti-theft lock, the top fixing rod of the adjustable bracket passes through the bottom of the protection box and the bottom of the shell in turn and is fixedly connected to the shock-absorbing device, the edge of the bottom of the protection box is provided with a plurality of exhaust holes, and a centrifugal exhaust fan is installed in each exhaust hole; The shock-absorbing plate group includes two hard rubber plates stacked one above the other and four cross-shaped pads fixed between the two rubber plates; the outer sides of the hard rubber plates are all covered and fixed with a layer of sound-insulating felt; The adjustable bracket includes four adjusting steel pipes with a thickness greater than ten millimeters, a cross brace and a supporting steel pipe sleeved on the bottom end of the adjusting steel pipe; the tops of the four adjusting steel pipes are fixed with a fixing support plate tightly fixed to the bottom of the shock-absorbing device; the four adjusting steel pipes are fixedly connected through the cross brace and at least two groups of cross beams to form a bracket body; a screw hole is provided on the supporting steel pipe, and a plurality of adjusting holes are longitudinally arranged on the adjusting steel pipe, and a butterfly bolt is screwed in the screw hole, and after the length of the adjusting steel pipe is adjusted, the screw rod of the butterfly bolt is correspondingly inserted into an adjusting hole.

2. The step-up transformer with protection and shock absorption function according to claim 1 is characterized in that: The protection box and the radiator are provided with heat dissipation windows at corresponding positions, and the heat dissipation windows are provided with sound insulation shutters.

3. The step-up transformer with protection and shock absorption function according to claim 1, characterized in that: A coarse-hole steel mesh is sealed and installed at the lower edge of each exhaust hole.

4. The step-up transformer with protection and shock absorption function according to claim 1, characterized in that: A sealing fireproof rubber ring is arranged between the inner side edge of the revolving door and the edge of the opening at the front end of the protection box, and the sealing fireproof rubber ring is fixed to the inner side edge of the revolving door.

5. The step-up transformer with protection and shock absorption function according to claim 1, characterized in that: The primary coils at the outer vertical parts of each frame-shaped iron core are electrically connected to the corresponding low-voltage insulating sleeves.

6. The step-up transformer with protection and shock absorption function according to claim 1, characterized in that : The secondary coil on the inner vertical part of each frame-type iron core is electrically connected to the high-voltage insulating sleeve.

7. The step-up transformer with protection and shock absorption function according to claim 1, characterized in that : The number of turns on the primary coil is less than the number of turns on the secondary coil.

8. The step-up transformer with protection and shock absorption function according to claim 4, characterized in that : The side of the revolving door is provided with a groove, the bottom surface of the groove is provided with a through hole, the side edge of the front end opening of the protection box is provided with a lock plate, the lock plate is located on the outside of the sealing fireproof rubber ring, one side of the groove is provided with a through hole connected to the outside, the anti-theft lock includes an alarm mechanism, a ball-shaped lock body with a notch, a lock column crossing the notch and a lock core controlling the advance and retreat of the lock column; an annular groove is provided on the side of the ball-shaped lock body, a signal line is provided in the annular groove, the signal line is electrically connected to the alarm mechanism, and the alarm mechanism is provided with a text message transmitting mechanism; after the ball-shaped lock body is inserted into the groove, its notch is inserted into the lock plate, and the lock core is buckled into the lock hole of the lock plate.

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