Building transformer shell noise reduction device

Abstract

The invention discloses a building transformer shell noise reduction device, and particularly relates to the technical field of transformer noise reduction, the building transformer shell noise reduction device comprises a bottom plate, the upper end of the bottom plate is fixedly connected with a plurality of damping assemblies distributed in a rectangular array, the upper sides of the damping assemblies are jointly and fixedly connected with a transformer, and the outer surface of the transformer is fixedly connected with a noise reduction shell. The left end and the right end of the noise reduction shell are both fixedly connected with heat dissipation assemblies, and the front end and the rear end of the noise reduction shell are both fixedly connected with spraying assemblies. According to the noise reduction device for the building transformer shell, by arranging the heat dissipation assembly and the spraying assembly, heat generated in the operation process of a transformer can be rapidly dissipated into the surrounding environment, the temperature of the transformer is reduced, the risk of oil quality degradation is reduced, the working efficiency of the transformer is improved, and the service life of the transformer is prolonged; the noise reduction shell is arranged to reduce noise generated in the operation process of the transformer, so that the noise is not easy to spread to the external environment, and the noise level near the transformer is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer noise reduction, and in particular to a noise reduction device for a building transformer shell. Background Art

[0002] Building transformers are a special-purpose electrical equipment used in power supply and distribution systems. They are mainly used in temporary construction power sites at construction sites, high-rise buildings and other civil buildings, and industrial and mining enterprises. The basic components of the transformer include iron core and windings. Its working principle is based on the principle of electromagnetic induction. The alternating current through the primary coil and the secondary coil converts high voltage into low voltage to meet the power needs of different electrical equipment. During the operation of the transformer, an alternating magnetic field will be generated. This magnetic field will cause magnetostriction in the iron core, and the iron core will vibrate periodically, thereby generating noise, which interferes with the lives of surrounding residents. Therefore, it is particularly important to develop a transformer casing noise reduction device.

[0003] Chinese patent publication number CN219677012U discloses a transformer oil tank structure, including a main body, a heat dissipation mechanism installed on the side of the main body, the main body including an oil tank shell, the side wall of the oil tank shell is fixedly connected to a connecting rod, the heat dissipation mechanism includes a heat dissipation shell, the side wall of the heat dissipation shell is fixedly connected to the end of the connecting rod, the interior of the heat dissipation shell is fixedly connected to a heat dissipation chamber, the side wall of the oil tank shell is fixedly connected to a first connecting pipe, the side wall of the heat dissipation shell is fixedly connected to a second connecting pipe, the end of the first connecting pipe is fixedly connected to the end of the second connecting pipe, the outer surface of the heat dissipation chamber is fixedly connected to heat dissipation fins, and the outer surface of the heat dissipation fins is fixedly connected to a cooling fan. The above-mentioned device has a reasonable structure, eliminates the pump, and uses the thermal siphon effect to transfer high-temperature transformer oil into the heat dissipation chamber for cooling, which is convenient for use of the transformer.

[0004] Although the device in the above document is provided with a heat dissipation mechanism to dissipate heat and cool the transformer, noise is generated during the operation of the transformer, and the above device cannot reduce the noise of the transformer. Summary of the Invention

[0005] The main purpose of the present invention is to provide a noise reduction device for a building transformer casing, which can effectively solve the problem that the transformer cannot be subjected to noise reduction treatment.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A noise reduction device for a building transformer casing comprises a base plate, the upper end of which is fixedly connected to a plurality of shock-absorbing components distributed in a rectangular array, the upper sides of the plurality of shock-absorbing components being commonly fixedly connected to a transformer, the outer surface of the transformer being fixedly connected to a noise reduction casing, the left and right ends of the noise reduction casing being fixedly connected to heat dissipation components, and the front and rear ends of the noise reduction casing being fixedly connected to spray components.

[0008] Preferably, the shock absorbing assembly includes a box body fixedly connected to the upper end of the base plate, a damper is fixedly connected to the bottom wall of the inner surface of the box body, a connecting rod is fixedly connected to the upper end of the damper, the upper end of the connecting rod passes through the box body and extends to the outside of the box body, and a spring is sleeved on the upper side of the outer surface of the connecting rod.

[0009] Preferably, the noise reduction shell includes two metal panels, and the ends of the two metal panels close to each other are fixedly connected to damping plates, and the ends of the two damping plates close to each other are respectively fixedly connected to corrugated sound insulation cotton and sound absorbing panels, and the sound absorbing panels are provided with a number of sound absorbing holes distributed in a rectangular array.

[0010] Preferably, the heat dissipation assembly includes a heat dissipation frame fixedly connected to one end of the noise reduction shell, and a plurality of heat dissipation fins distributed in a linear array are provided in the heat dissipation frame, and the plurality of heat dissipation fins are fixedly connected to the noise reduction shell, and a fan is fixedly connected to the lower end of the heat dissipation frame.

[0011] Preferably, the spray assembly includes a shell fixedly connected to one end of the noise reduction housing and a plurality of heat sinks 2 distributed in a linear array, wherein the plurality of heat sinks 2 are arranged inside the shell, a semiconductor refrigeration fin is fixedly connected to the front side of the middle portion of the shell, a heat conduction plate is fixedly connected to the rear side of the middle portion of the shell, the semiconductor refrigeration fin and the heat conduction plate are fixedly connected, a side of the semiconductor refrigeration fin close to the heat conduction plate is a cooling surface, and the other side of the semiconductor refrigeration fin is a heating surface;

[0012] A rain shield is fixedly connected to the upper side of the front end of the shell, a submersible pump is fixedly connected to the bottom wall of the inner surface of the shell, the water outlet of the submersible pump is fixedly connected to water pipe 1, the water pipe 1 is L-shaped, and the upper horizontal part of the water pipe 1 is fixedly connected to a number of water pipes 2 distributed in a linear array, and the outer surface of the water pipe 2 is fixedly connected to a number of nozzles distributed in a linear array.

[0013] Preferably, the upper end of the connecting rod passes through the box body and is fixedly connected to the lower end of the noise reduction shell.

[0014] Preferably, the plurality of nozzles are all opened toward the second heat sink.

[0015] Preferably, the inner cavities of the water pipe 1 and several of the water pipes 2 are communicated with each other, and the inner cavities of several of the water pipes 2 and several of the nozzles close to each other are communicated with each other.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can quickly dissipate the heat generated by the transformer during operation into the surrounding environment by providing a heat dissipation component and a spray component, thereby lowering the temperature of the transformer, reducing the risk of oil deterioration, and improving its working efficiency and service life.

[0018] 2. The invention can reduce the noise generated during the operation of the transformer by setting a noise reduction shell, making it difficult for it to spread to the external environment, thereby reducing the noise level near the transformer and providing a quieter atmosphere for the living and working environment of surrounding residents. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the shock absorbing assembly of the present invention;

[0021] Figure 3 It is a schematic structural diagram of the heat dissipation assembly of the present invention;

[0022] Figure 4 It is a schematic diagram of a partial cross-sectional structure of a spray assembly of the present invention;

[0023] Figure 5 This is a schematic diagram of the explosion structure of the noise reduction shell of the present invention.

[0024] In the figure: 1. Base plate; 2. Shock absorption assembly; 21. Box body; 22. Damper; 23. Connecting rod; 24. Spring; 3. Transformer; 4. Heat dissipation assembly; 41. Heat dissipation frame; 42. Heat sink 1; 43. Fan; 5. Spray assembly; 51. Shell; 52. Semiconductor refrigeration plate; 53. Heat conduction plate; 54. Rain shield; 55. Submersible pump; 56. Water pipe 1; 57. Water pipe 2; 58. Nozzle; 59. Heat sink 2; 6. Noise reduction shell; 61. Metal panel; 62. Damping plate; 63. Corrugated sound insulation cotton; 64. Sound absorbing board; 65. Sound absorbing hole. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1As shown, a noise reduction device for a building transformer casing includes a base plate 1, a plurality of shock-absorbing components 2 distributed in a rectangular array are fixedly connected to the upper end of the base plate 1, a transformer 3 is fixedly connected to the upper sides of the plurality of shock-absorbing components 2, a noise reduction casing 6 is fixedly connected to the outer surface of the transformer 3, a heat dissipation component 4 is fixedly connected to the left and right ends of the noise reduction casing 6, and a spray component 5 is fixedly connected to the front and rear ends of the noise reduction casing 6.

[0027] like Figure 2 As shown, the shock absorption assembly 2 includes a box body 21 fixedly connected to the upper end of the base plate 1, a damper 22 is fixedly connected to the bottom wall of the inner surface of the box body 21, and a connecting rod 23 is fixedly connected to the upper end of the damper 22. The upper end of the connecting rod 23 passes through the box body 21 and extends to the outside of the box body 21. A spring 24 is sleeved on the upper side of the outer surface of the connecting rod 23. The upper end of the connecting rod 23 passes through the box body 21 and is fixedly connected to the lower end of the noise reduction housing 6;

[0028] When the transformer 3 is running, the iron core and winding inside it will generate alternating electromagnetic force due to the alternating current. This electromagnetic force will increase with the increase of load current, causing the transformer structure to vibrate. The vibration is transmitted to the connecting rod 23. Through the combined action of the connecting rod 23 and the damper 22, the vibration energy generated by the transformer can be absorbed and buffered, thereby reducing the vibration amplitude and noise level.

[0029] like Figure 5 As shown, the noise reduction housing 6 includes two metal panels 61, and the ends of the two metal panels 61 close to each other are fixedly connected to a damping plate 62, and the ends of the two damping plates 62 close to each other are respectively fixedly connected to a corrugated sound insulation cotton 63 and a sound absorbing plate 64, and the sound absorbing plate 64 is provided with a plurality of sound absorbing holes 65 distributed in a rectangular array;

[0030] During actual use of the device, the noise generated by the transformer 3 is transmitted to the damping sheet 62 through the metal panel 61. The damping sheet 62 can absorb and disperse the vibration energy, effectively suppress the propagation of the vibration, and reduce the noise level at the same time. The noise not absorbed by the damping sheet 62 is transmitted to the corrugated sound insulation cotton 63. When the noise sound wave is incident on the corrugated sound insulation cotton 63, the sound wave will be reflected, superimposed and collided with each other in countless fibers and pores, resulting in a large amount of sound wave energy being absorbed and converted into heat energy, thereby reducing the intensity of the sound wave and achieving a sound insulation effect. The noise sound wave continues to be transmitted to the sound absorbing panel 64. The pores inside the sound absorbing panel 64 will convert the sound wave into heat energy, thereby reducing the reflection and propagation of sound. The entire noise reduction shell 6 achieves noise reduction for the transformer 3 through a multi-layer sound absorption structure;

[0031] The damping sheet 62 is typically composed of a base material and a rubber layer. It features excellent flexibility, strong wear resistance, good oil resistance, and high and low temperature resistance, enabling it to operate stably in a variety of harsh environments. The working principle of the damping sheet 62 is based on the viscoelastic properties of its material. When the equipment vibrates, the damping sheet 62 absorbs and disperses the vibration energy, converting it into heat energy through internal friction and deformation of the material, thereby reducing vibration and noise.

[0032] The interior of the corrugated sound insulation cotton 63 is filled with tiny gaps and a semi-open structure, which can absorb a large amount of incident sound wave energy, attenuate the sound waves, reduce the interference and reverberation of reflected sound within the equipment, and improve the purity of the sound. Its sound absorption coefficient can be as high as 0.85, which has a strong sound-absorbing and noise-reducing effect. At the same time, the corrugated sound insulation cotton 63 also has good thermal insulation properties, which can reduce heat transfer.

[0033] The sound-absorbing panel 64 with a plurality of sound-absorbing holes 65 utilizes the porous structure of the material. When sound propagates to the surface of the panel, the pores inside the panel convert the sound waves into heat energy, thereby reducing the reflection and propagation of the sound.

[0034] As shown in the figure, the heat dissipation assembly 4 includes a heat dissipation frame 41 fixedly connected to one end of the noise reduction housing 6. The heat dissipation frame 41 is provided with a plurality of heat dissipation fins 42 distributed in a linear array. The plurality of heat dissipation fins 42 are all fixedly connected to the noise reduction housing 6. A fan 43 is fixedly connected to the lower end of the heat dissipation frame 41.

[0035] A heat sink is a metal sheet used to dissipate heat. It transfers heat from the heat source to the air by increasing the surface area to achieve the purpose of heat dissipation. Heat sinks are made of a variety of materials, mainly including silver, copper, aluminum, steel, etc.

[0036] When the transformer 3 is running, the resistance and hysteresis loss generated by the winding will be converted into heat energy, causing the temperature to rise. The insulating oil transfers the heat to the heat dissipation frame 41 and the heat sink 1 42, and the fan 43 on the lower side generates air cooling to cool the heat sink 1 42.

[0037] like Figure 3 As shown, the spray assembly 5 includes a shell 51 fixedly connected to one end of the noise reduction housing 6 and a plurality of heat sinks 59 distributed in a linear array. The plurality of heat sinks 59 are arranged inside the shell 51. A semiconductor cooling fin 52 is fixedly connected to the front side of the middle of the shell 51, and a heat conducting plate 53 is fixedly connected to the rear side of the middle of the shell 51. The semiconductor cooling fin 52 and the heat conducting plate 53 are fixedly connected. The side of the semiconductor cooling fin 52 and the heat conducting plate 53 that are close to each other is the cooling surface, and the other side of the semiconductor cooling fin 52 is the heating surface.

[0038] A rain shield 54 is fixedly connected to the upper side of the front end of the housing 51, and a submersible pump 55 is fixedly connected to the bottom wall of the inner surface of the housing 51. The outlet portion of the submersible pump 55 is fixedly connected to a water pipe 1 56. The water pipe 1 56 is L-shaped. A plurality of water pipes 2 57 distributed in a linear array are fixedly connected to the upper horizontal portion of the water pipe 1 56. A plurality of nozzles 58 distributed in a linear array are fixedly connected to the outer surface of the water pipe 2 57. The plurality of nozzles 58 all open toward the second heat sink 59. The inner cavities of the water pipe 1 56 and the plurality of water pipes 2 57 are all in communication, and the inner cavities of the plurality of water pipes 2 57 and the plurality of nozzles 58 adjacent to each other are all in communication.

[0039] The semiconductor refrigeration chip 52 is a technology product that uses the Peltier effect of semiconductor materials to achieve cooling. When direct current passes through a thermocouple composed of two different semiconductor materials connected in series, heat absorption and heat release occur at both ends of the thermocouple. Specifically, when current flows through a thermocouple pair composed of an N-type semiconductor material and a P-type semiconductor material, heat is transferred from one end to the other, thereby generating a temperature difference and forming hot and cold ends. The junction where current flows from the N-type element to the P-type element absorbs heat and becomes the cold end, while the junction where current flows from the P-type element to the N-type element releases heat and becomes the hot end.

[0040] The semiconductor cooling chip 52 generally cannot come into direct contact with water. This is because water is conductive. If the semiconductor cooling chip 52 comes into contact with water, it may cause an electrical short circuit, making the cooling chip 52 unable to operate normally. Therefore, a rain shield 54 is provided to prevent rainwater from contacting the semiconductor cooling chip 52.

[0041] The heat generated by the transformer 3 during operation will also be transferred to the heat sink 2 59. When the semiconductor refrigeration plate 52 is in operation, it cools the water inside the shell 51 through the heat conduction plate 53, and then transfers the water in the shell 51 to the water pipe 1 56 through the submersible pump 55. The water is then transferred to the water pipe 2 57 and sprayed onto the heat sink 2 59 through the nozzle 58, thereby cooling the heat sink 2 59 and accelerating the heat dissipation of the transformer 3.

[0042] It should be noted that the specific installation method, circuit connection method and control method of the transformer 3, semiconductor cooling plate 52 and submersible pump 55 used in the present invention are all conventional designs and will not be elaborated in detail in the present invention.

[0043] The working principle of the present invention is as follows: when the transformer is running, when current passes through the winding, electromagnetic force is generated, causing the winding to vibrate, thereby generating noise. The noise is transmitted to the damping plate 62 through the metal panel 61. The damping plate 62 can absorb and disperse the vibration energy, effectively suppress the propagation of vibration, and reduce the noise level at the same time. The noise not absorbed by the damping plate 62 is transmitted to the corrugated sound insulation cotton 63. When the noise sound wave is incident on the corrugated sound insulation cotton 63, the sound wave will be reflected, superimposed and collided with each other in countless fibers and pores, resulting in a large amount of sound wave energy being absorbed and converted into heat energy, thereby weakening the sound wave intensity and achieving a sound insulation effect. The noise sound wave continues to be transmitted to the sound absorbing panel 64. The pores inside the sound absorbing panel 64 will convert the sound wave into heat energy, thereby reducing the reflection and propagation of sound. The entire noise reduction shell 6 achieves noise reduction for the transformer 3 through a multi-layer sound-absorbing structure. At the same time, the vibration generated by the transformer 3 during operation is transmitted to the connecting rod 23. Through the joint action of the connecting rod 23 and the damper 22, the vibration energy generated by the transformer can be absorbed and buffered, thereby reducing the vibration amplitude and noise level.

[0044] When the transformer is running, the resistance and hysteresis loss generated by the winding will be converted into heat energy, causing the temperature to rise. The insulating oil transfers the heat to the heat dissipation frame 41 and the heat sink 1 42. The fan 43 on the lower side generates air cooling to cool the heat sink 1 42. The heat will also be transferred to the heat sink 2 59. When the semiconductor refrigeration plate 52 is running, it cools the water inside the shell 51 through the heat conduction plate 53, and then transfers the water in the shell 51 to the water pipe 1 56 through the submersible pump 55, and then transfers it to the water pipe 2 57 and sprays it to the heat sink 2 59 through the nozzle 58, thereby cooling the heat sink 2 59, thereby accelerating the heat dissipation of the transformer 3.

[0045] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise reduction device for a building transformer housing, comprising a bottom plate (1), characterized in that: The upper end of the bottom plate (1) is fixedly connected to a plurality of shock absorbing components (2) distributed in a rectangular array, the upper sides of the plurality of shock absorbing components (2) are commonly fixedly connected to a transformer (3), the outer surface of the transformer (3) is fixedly connected to a noise reduction housing (6), the left and right ends of the noise reduction housing (6) are fixedly connected to a heat dissipation component (4), and the front and rear ends of the noise reduction housing (6) are fixedly connected to a spray component (5).

2. A noise reduction device for a building transformer housing according to claim 1, characterized in that: The shock absorbing assembly (2) comprises a box body (21) fixedly connected to the upper end of the base plate (1); a damper (22) is fixedly connected to the bottom wall of the inner surface of the box body (21); a connecting rod (23) is fixedly connected to the upper end of the damper (22); the upper end of the connecting rod (23) passes through the box body (21) and extends to the outside of the box body (21); and a spring (24) is sleeved on the upper side of the outer surface of the connecting rod (23).

3. A noise reduction device for a building transformer housing according to claim 1, characterized in that: The noise reduction housing (6) comprises two metal panels (61), the ends of the two metal panels (61) close to each other are fixedly connected to a damping sheet (62), the ends of the two damping sheets (62) close to each other are respectively fixedly connected to a corrugated sound insulation cotton (63) and a sound absorbing board (64), and the sound absorbing board (64) is provided with a plurality of sound absorbing holes (65) distributed in a rectangular array.

4. A noise reduction device for a building transformer housing according to claim 1, characterized in that: The heat dissipation assembly (4) comprises a heat dissipation frame (41) fixedly connected to one end of the noise reduction housing (6), a plurality of heat dissipation fins (42) distributed in a linear array are arranged in the heat dissipation frame (41), the plurality of heat dissipation fins (42) are all fixedly connected to the noise reduction housing (6), and a fan (43) is fixedly connected to the lower end of the heat dissipation frame (41).

5. The noise reduction device for a building transformer housing according to claim 1, characterized in that: The spray assembly (5) comprises a shell (51) fixedly connected to one end of the noise reduction housing (6) and a plurality of heat sinks (59) distributed in a linear array, wherein the plurality of heat sinks (59) are arranged inside the shell (51), a semiconductor cooling sheet (52) is fixedly connected to the front side of the middle part of the shell (51), a heat conducting plate (53) is fixedly connected to the rear side of the middle part of the shell (51), the semiconductor cooling sheet (52) and the heat conducting plate (53) are fixedly connected, a side of the semiconductor cooling sheet (52) and the heat conducting plate (53) close to each other is a cooling surface, and the other side of the semiconductor cooling sheet (52) is a heating surface; A rain shield (54) is fixedly connected to the upper side of the front end of the shell (51), a submersible pump (55) is fixedly connected to the bottom wall of the inner surface of the shell (51), a water pipe (56) is fixedly connected to the water outlet of the submersible pump (55), the water pipe (56) is L-shaped, a plurality of water pipes (57) distributed in a linear array are fixedly connected to the upper horizontal portion of the water pipe (56), and a plurality of nozzles (58) distributed in a linear array are fixedly connected to the outer surface of the water pipe (57).

6. A noise reduction device for a building transformer housing according to claim 2, characterized in that: The upper end of the connecting rod (23) passes through the box body (21) and is fixedly connected to the lower end of the noise reduction housing (6).

7. The noise reduction device for a building transformer housing according to claim 5, characterized in that: The plurality of nozzles (58) are all opened toward the second heat sink (59).

8. The noise reduction device for a building transformer housing according to claim 5, characterized in that: The water pipe 1 (56) and a plurality of the water pipes 2 (57) are all connected in their inner cavities, and a plurality of the water pipes 2 (57) and a plurality of the nozzles (58) adjacent to each other are all connected in their inner cavities.

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