A noise reduction type dry-type transformer

Abstract

The utility model discloses a dry -type transformer of noise reduction belongs to transformer technical field, and its technical scheme main points include transformer body, the outside swing joint of transformer body has the noise reduction mechanism, the inside swing joint of noise reduction mechanism has elasticity replacement subassembly, can with the honeycomb board and the noise reduction cotton composite structure of inside wall of transformer body beforehand install sound insulation shell, with the honeycomb board stability structure, prolongs sound wave propagation path and the even noise of noise reduction cotton absorption, realizes efficient noise reduction and avoids the heat dissipation obstruction problem caused by traditional package sound insulation material, utilizes the elasticity fixed structure of the telescopic pillar with the compression spring simultaneously, replaces rigid connection and reduces vibration transmission and relevant noise, still can conveniently complete transformer installation and replacement to be convenient for noise reduction effect, heat dissipation performance and installation maintenance convenience, effectively solved the noise interference, heat dissipation risk, vibration amplification and the problem such as complicated installation maintenance in the application of existing dry -type transformer.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to a noise-reducing dry-type transformer. Background Technology

[0002] With the advancement of urbanization, dry-type transformers are often placed in basements in residential areas, shopping malls, hospitals and other places. The low-frequency noise generated by their operation has the characteristics of long wavelength, slow attenuation and strong penetrating power, which can interfere with residents' lives and harm human health. Therefore, it is urgent to develop noise-reducing dry-type transformers.

[0003] In existing technologies, the noise generated by the magnetostriction of the iron core and the vibration of the windings during the operation of dry-type transformers can easily interfere with the surrounding environment. Traditional noise reduction methods often use simple wrapping with sound insulation materials, which not only has limited noise reduction effect, but also often obstructs heat dissipation of the transformer due to the enclosure, leading to the risk of equipment overheating. At the same time, the rigid connection between the transformer and the installation structure will aggravate the vibration transmission and further amplify the noise. Moreover, the installation of existing transformers and the replacement of internal noise reduction components are cumbersome and require a lot of manpower and time, making it difficult to balance noise reduction effect, heat dissipation performance and installation and maintenance convenience.

[0004] To address this, a noise-reducing dry-type transformer is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a noise-reducing dry-type transformer that can solve the problems of obstructed heat dissipation and cumbersome installation and maintenance in existing systems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a noise-reducing dry-type transformer, comprising a transformer body, a noise-reducing mechanism movably connected to the outer side of the transformer body, and an elastic replacement component movably connected to the inner side of the noise-reducing mechanism. The noise-reducing mechanism includes a sound-insulating shell, an installation component movably connected to the bottom of the inner side of the sound-insulating shell, the transformer body movably connected to the inner side of the installation component, and the elastic replacement component movably connected to the inner side of the sound-insulating shell and evenly distributed around the inner wall of the sound-insulating shell. A honeycomb panel is movably connected to the inner side of the elastic replacement component, and noise-reducing cotton is fixedly connected to the side of the honeycomb panel near the transformer body.

[0007] Preferably, the elastic replacement component includes four mounting frames, which are evenly arranged around the inner wall of the soundproof housing. The two sides of the inner side of each mounting frame are slidably connected to mounting rails, and the honeycomb panel is slidably connected to the inner side of the mounting rails.

[0008] Preferably, the two mounting slide rails are fixedly connected to limit slide rods on opposite sides, and the limit slide rods are slidably connected to both sides of the outer side of the mounting frame.

[0009] Preferably, a tension spring is sleeved on the outer side of the limiting slide rod.

[0010] Preferably, the mounting assembly includes two fixing rods, both of which are slidably connected to the bottom of the inner side of the soundproof housing and are respectively located on the left and right sides. A threaded sleeve is fixedly connected to the front side of the fixing rod, and a motor bidirectional lead screw is threadedly connected to the inner side of the threaded sleeve. The motor bidirectional lead screw is movably connected to the front side of the soundproof housing.

[0011] Preferably, each of the two fixed rods has a travel groove on its opposite side, a telescopic support is fixedly connected to the inner wall of the travel groove, a contact plate is fixedly connected to the side of the telescopic support away from the fixed rod, and a compression spring is fixedly connected to the inner side of the telescopic support.

[0012] Preferably, a radiator is fixedly connected to the bottom of the soundproof housing.

[0013] Preferably, a top cover is fixedly connected to the top of the soundproof housing.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This application, by setting a noise reduction mechanism, allows the transformer body to be pre-installed into a soundproof shell with a composite structure of honeycomb panels and noise-reducing cotton on the inner wall. The honeycomb panels stabilize the structure, extend the sound wave propagation path, and the noise-reducing cotton evenly absorbs noise, achieving efficient noise reduction and avoiding the heat dissipation obstruction problem caused by traditional soundproofing materials. At the same time, the elastic fixing structure with telescopic support columns and compression springs replaces the rigid connection to reduce vibration transmission and related noise, and also facilitates the installation and replacement of the transformer. Thus, it takes into account the noise reduction effect, heat dissipation performance, and ease of installation and maintenance, effectively solving the problems of noise interference, heat dissipation risk, vibration amplification, and cumbersome installation and maintenance in the existing dry-type transformer applications.

[0016] 2. This application allows for flexible component replacement, enabling the honeycomb panel to be directly pulled out during removal. During installation, the honeycomb panel is inserted into or slid into the mounting rail through the grooves on both sides. When the honeycomb panel fills the mounting frame, it will press the mounting rail against the frame wall, causing the limiting slide rod to slide outward and stretch the tension spring. The tension spring then generates an inward pushing force on the rail to achieve a fastening effect. This not only ensures the stability of the composite structure after installation but also solves the potential problems of cumbersome and time-consuming replacement of noise reduction components, making the maintenance and upgrading of the sound insulation and noise reduction structure more efficient and further taking into account the practicality and convenience of the equipment in use. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the noise-reducing dry-type transformer of this utility model.

[0018] Figure 2This is an overall structural diagram of the soundproof shell of this utility model;

[0019] Figure 3 This is an overall structural diagram of the noise reduction mechanism of this utility model;

[0020] Figure 4 This is an overall structural diagram of the mounting components of this utility model;

[0021] Figure 5 This is an overall structural diagram of the flexible replacement component of this utility model.

[0022] In the diagram, 1. Transformer body; 2. Noise reduction mechanism; 21. Soundproof housing; 22. Mounting assembly; 2201. Fixing rod; 2202. Threaded sleeve; 2203. Motor bidirectional lead screw; 2204. Stroke groove; 2205. Telescopic support column; 2206. Contact plate; 2207. Compression spring; 23. Honeycomb panel; 24. Noise reduction cotton; 3. Elastic replacement assembly; 31. Mounting frame; 32. Mounting slide rail; 33. Limiting slide bar; 34. Tension spring; 4. Radiator; 5. Top cover. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 The present invention provides the following technical solution:

[0025] A noise-reducing dry-type transformer includes a transformer body 1. A noise reduction mechanism 2 is movably connected to the outer side of the transformer body 1. An elastic replacement component 3 is movably connected to the inner side of the noise reduction mechanism 2. The noise reduction mechanism 2 includes a soundproof shell 21. An installation component 22 is movably connected to the bottom of the inner side of the soundproof shell 21. The transformer body 1 is movably connected to the inner side of the installation component 22. The elastic replacement component 3 is movably connected to the inner side of the soundproof shell 21 and is evenly distributed around the inner wall of the soundproof shell 21. A honeycomb panel 23 is movably connected to the inner side of the elastic replacement component 3. Noise-reducing cotton 24 is fixedly connected to the side of the honeycomb panel 23 near the transformer body 1.

[0026] In this embodiment: instead of directly wrapping the outside of the transformer with sound insulation material, the transformer body 1 is first installed inside the sound insulation shell 21. The four inner walls of the sound insulation shell 21 have a composite structure composed of honeycomb panels 23 and noise-reducing cotton 24. The honeycomb panels 23 are attached to the inner wall of the sound insulation shell 21, and the noise-reducing cotton 24 faces the transformer body 1. Noise reduction is achieved through the combined acoustic effect of the honeycomb panels 23 reflecting and scattering sound waves and the noise-reducing cotton 24 absorbing sound waves. The honeycomb panels 23 can ensure the stability of the shell structure and extend the sound wave propagation path to enhance the noise reduction effect. The noise-reducing cotton 24 can efficiently absorb the noise directly radiated by the transformer body 1 and achieve uniform absorption due to its surrounding arrangement. The transformer body 1 can be easily installed inside the sound insulation shell 21. After being placed directly, it is elastically fixed on both sides by the installation components 22, which is convenient for replacement and can also reduce vibration noise and noise transmitted to the sound insulation shell 21.

[0027] Specifically, such as Figure 1 , Figure 2 , Figure 5 As shown, the flexible replacement component 3 includes four mounting frames 31, which are evenly arranged around the inner wall of the soundproof housing 21. The two sides of the inner side of the mounting frame 31 are slidably connected to the mounting rails 32, and the honeycomb panel 23 is slidably connected to the inner side of the mounting rails 32.

[0028] Specifically, such as Figure 1 , Figure 2 , Figure 5 As shown, the two mounting slide rails 32 are fixedly connected to the opposite sides of each other, and the limiting slide rails 33 are slidably connected to the two sides of the outer side of the mounting frame 31 respectively.

[0029] Specifically, such as Figure 1 , Figure 2 , Figure 5 As shown, a tension spring 34 is sleeved on the outer side of the limiting slide bar 33.

[0030] In this embodiment: the composite structure of honeycomb panel 23 and noise-reducing cotton 24 allows for easy replacement. When replacing, the honeycomb panel 23 can be removed by simply pulling it out. During installation, the grooves on both sides of the honeycomb panel 23 are sequentially inserted into the mounting slide rail 32, or the mounting slide rails 32 on both sides are slid together after they are both in contact with the inner wall. Since the honeycomb panel 23 can fill the entire mounting frame 31, after both ends enter the mounting slide rail 32, it will squeeze and fix the mounting slide rail 32 to fit against the inner walls on both sides of the mounting frame 31. During this process, the limiting slide rod 33 on the outer side of the mounting slide rail 32 will slide outward to the outside of the mounting frame 31, stretching the tension spring 34 that is sleeved on its outer side and fixedly connected to the outer wall of the mounting frame 31. This causes the two limiting slide rods 33 to be pushed inward by the tension spring 34 at the same time, thereby providing a fastening force. This ensures stability and makes it convenient for personnel to pull out and replace the panel directly.

[0031] Specifically, such as Figure 3 , Figure 4As shown, the mounting assembly 22 includes two fixing rods 2201. Both fixing rods 2201 are slidably connected to the bottom of the inner side of the soundproof housing 21 and are respectively located on the left and right sides. A threaded sleeve 2202 is fixedly connected to the front side of the fixing rod 2201. A motor bidirectional lead screw 2203 is threadedly connected to the inner side of the threaded sleeve 2202. The motor bidirectional lead screw 2203 is movably connected to the front side of the soundproof housing 21.

[0032] Specifically, such as Figure 3 , Figure 4 As shown, each of the two fixed rods 2201 has a stroke groove 2204 on one side opposite to the other. A telescopic support column 2205 is fixedly connected to the inner wall of the stroke groove 2204. A contact plate 2206 is fixedly connected to the side of the telescopic support column 2205 away from the fixed rod 2201. A compression spring 2207 is fixedly connected to the inner side of the telescopic support column 2205.

[0033] In this embodiment: by activating the bidirectional lead screw 2203 of the motor on the front side of the soundproof housing 21, the two fixing rods 2201 with threaded sleeves 2202 on both sides of the opposite thread slide inward along the bottom of the soundproof housing 21. The telescopic support 2205 with compression spring 2207 in the inner stroke groove 2204 of the fixing rod 2201 and the outer contact plate 2206 contact the support part of the transformer body 1. The contact plate 2206 contacts first, and the fixing rod 2201 continues to move, causing the telescopic support 2205 to retract into the stroke groove 2204. The compression spring 2207 stores energy. In this way, the transformer body 1 is elastically fixed on both sides, which is convenient for replacement and can also reduce vibration noise and noise transmitted to the soundproof housing 21.

[0034] Specifically, such as Figure 2 As shown, a radiator 4 is fixedly connected to the bottom of the soundproof housing 21.

[0035] Specifically, such as Figure 1 As shown, a top cover 5 is fixedly connected to the top of the soundproof housing 21.

[0036] In this embodiment: after installation, the top cover 5 is sealed, the wires are connected to the transformer body 1 through the opening of the top cover 5, and the heat sink 4 achieves overall heat dissipation at the bottom.

[0037] Working Principle: In the practical application of existing dry-type transformers, the noise generated during operation due to magnetostriction of the iron core and vibration of the windings can easily interfere with the surrounding environment. Traditional noise reduction methods often involve simply wrapping the transformer with sound-insulating materials, which not only has limited noise reduction effect but also often obstructs heat dissipation due to the enclosure, leading to the risk of equipment overheating. At the same time, the rigid connection between the transformer and the installation structure will amplify vibration transmission and further amplify noise. Moreover, the existing transformer installation and replacement of internal noise reduction components are cumbersome, requiring a lot of manpower and time, making it difficult to balance noise reduction effect, heat dissipation performance, and ease of installation and maintenance. To avoid the above situations, instead of directly wrapping the transformer with sound-insulating materials to achieve noise reduction, we prioritize wrapping the transformer with sound-insulating materials before installing and using the transformer body 1. The transformer body 1 is installed inside the soundproof housing 21. The four inner walls of the soundproof housing 21 are each equipped with a composite structure consisting of honeycomb panels 23 and noise-reducing cotton 24. The honeycomb panels 23 are fitted against the inner walls of the soundproof housing 21, while the noise-reducing cotton 24 faces the transformer body 1. This achieves noise reduction through the combined acoustic effects of the honeycomb panels 23 reflecting and scattering sound waves, and the noise-reducing cotton 24 absorbing sound waves. The honeycomb panels 23 ensure the stability of the housing structure and extend the sound wave propagation path to enhance the noise reduction effect, while the noise-reducing cotton 24 efficiently absorbs noise directly radiated by the transformer body 1. The uniform absorption is achieved through the arrangement of the inner walls. Furthermore, the transformer body 1 can be easily installed within the soundproof housing 21 by directly placing it... Upon entering the soundproof housing 21, the bidirectional lead screw 2203 of the motor located at the front of the soundproof housing 21 is activated. This allows the two fixed rods 2201, located on opposite threads of the motor bidirectional lead screw 2203 and with built-in threaded sleeves 2202, to slide simultaneously inward along the bottom of the soundproof housing 21, contacting the ground portion of the transformer body 1, i.e., the support portion, from both sides. During this process, the two fixed rods 2201 do not directly contact the transformer body 1; instead, multiple travel grooves 2204 are formed on the inner side of the fixed rods 2201. Each travel groove 2204 has a fixedly connected telescopic support column 2205 with a travel distance matching that of the travel groove 2204. The telescopic support column 2205 has a built-in compression spring 2207, and a contact plate 220 is fixedly connected to the outer side of the telescopic support column 2205. 6. During the linkage of the aforementioned fixing rod 2201, the contact plate 2206 preferentially contacts both sides of the transformer body 1, but it is not directly pressed and fixed. Instead, during the continuous linkage of the fixing rod 2201, the distance between the fixing rod 2201 and the contact plate 2206 is reduced, and the fixing is completed after the telescopic support 2205 between them is fully retracted into the inside of the travel groove 2204. At this time, the compression spring 2207 inside the telescopic support 2205 is in a state of accumulating elastic potential energy and maintains a certain contraction capacity. In summary, the transformer body 1 can achieve elastic fixed installation on both sides, which can facilitate convenient replacement, reduce vibration noise to a certain extent, and reduce the noise generated by vibration transmitted to the soundproof shell 21. After installation, the top cover 5 is sealed.The wiring enters through the opening in the top cover 5 and connects to the transformer body 1, while the radiator 4 provides overall heat dissipation at the bottom. Furthermore, the composite structure of the honeycomb panel 23 and the noise-reducing cotton 24 allows for easy replacement. When replacement is needed, the honeycomb panel 23 can be directly pulled out for removal. During installation, the honeycomb panel 23 is inserted into the mounting rails 32 on both sides in sequence, or simultaneously slid into place after both mounting rails 32 are flush with the inner wall. Since the honeycomb panel 23 is large enough to fill the entire mounting frame 31, it will compress after entering the mounting rails 32 at both ends. The mounting rail 32 is fixedly installed against the inner walls of both sides of the mounting frame 31. During installation, the limiting slide rod 33 on the outer side of the mounting rail 32 slides outwards from the mounting frame 31 as the mounting rail 32 slides towards the inner wall. This stretches the tension spring 34, which is sleeved on the outer side of the limiting slide rod 33 and fixedly connected to the outer wall of the mounting frame 31. This causes the two limiting slide rods 33 to be simultaneously pushed inwards by the tension spring 34, providing a tightening force that ensures stability and facilitates easy removal and replacement. In summary, this optimizes the noise-reducing dry-type transformer.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A noise-reducing dry-type transformer, comprising a transformer body (1), characterized in that: A noise reduction mechanism (2) is movably connected to the outer side of the transformer body (1), and an elastic replacement component (3) is movably connected to the inner side of the noise reduction mechanism (2). The noise reduction mechanism (2) includes a soundproof shell (21). An installation component (22) is movably connected to the bottom of the inner side of the soundproof shell (21). The transformer body (1) is movably connected to the inner side of the installation component (22). The elastic replacement component (3) is movably connected to the inner side of the soundproof shell (21) and is evenly distributed around the inner wall of the soundproof shell (21). A honeycomb panel (23) is movably connected to the inner side of the elastic replacement component (3). Noise reduction cotton (24) is fixedly connected to the side of the honeycomb panel (23) closest to the transformer body (1).

2. The noise-reducing dry-type transformer according to claim 1, characterized in that: The elastic replacement component (3) includes four mounting frames (31), and the four mounting frames (31) are evenly arranged around the inner wall of the soundproof shell (21). The two sides of the inner side of the mounting frame (31) are slidably connected to the mounting rails (32), and the honeycomb panel (23) is slidably connected to the inner side of the mounting rails (32).

3. A noise-reducing dry-type transformer according to claim 2, characterized in that: The two mounting slide rails (32) are fixedly connected to the opposite sides of the limit slide rods (33), and the limit slide rods (33) are slidably connected to the two sides of the outside of the mounting frame (31).

4. A noise-reducing dry-type transformer according to claim 3, characterized in that: A tension spring (34) is sleeved on the outer side of the limiting slide bar (33).

5. A noise-reducing dry-type transformer according to claim 1, characterized in that: The mounting assembly (22) includes two fixing rods (2201), both of which are slidably connected to the bottom of the inner side of the soundproof housing (21) and are respectively located on the left and right sides. A threaded sleeve (2202) is fixedly connected to the front side of the fixing rod (2201), and a motor bidirectional lead screw (2203) is threadedly connected to the inner side of the threaded sleeve (2202). The motor bidirectional lead screw (2203) is movably connected to the front side of the soundproof housing (21).

6. A noise-reducing dry-type transformer according to claim 5, characterized in that: Each of the two fixed rods (2201) has a stroke groove (2204) on one side opposite to the fixed rod (2201). A telescopic support column (2205) is fixedly connected to the inner wall of the stroke groove (2204). A contact plate (2206) is fixedly connected to the side of the telescopic support column (2205) away from the fixed rod (2201). A compression spring (2207) is fixedly connected to the inner side of the telescopic support column (2205).

7. A noise-reducing dry-type transformer according to claim 1, characterized in that: A radiator (4) is fixedly connected to the bottom of the soundproof housing (21).

8. A noise-reducing dry-type transformer according to claim 1, characterized in that: The top of the soundproof housing (21) is fixedly connected to a top cover (5).

Images