Waterproof transformer with noise reduction shell

Abstract

The utility model belongs to the technical field of transformers, and particularly relates to a waterproof transformer with a noise reduction shell, which comprises the noise reduction shell and a cover plate, the cover plate is clamped on the upper surface of the noise reduction shell, a noise reduction unit is arranged on the side surface of the noise reduction shell, and a heat dissipation unit is arranged on the outer surface of the noise reduction shell; the mounting groove penetrates through the front face of the noise reduction shell, the sound insulation plate is fixedly mounted on the inner wall of the mounting groove, meanwhile, the surface of the sound insulation plate is covered with the plate provided with the silencing holes, noise generated by the transformer in the noise reduction shell can be isolated and eliminated, and the sound absorption cotton columns fixedly mounted on the surfaces of the silencing holes can assist in noise absorption; the epoxy resin filler is filled between the transformer body and the waterproof box to seal and prevent water for the transformer body, and meanwhile, the epoxy resin filler is matched with the cooling coil in the cooling mechanism to quickly take away heat to help the transformer body to dissipate heat, so that the heat dissipation performance of the transformer is better, and the service life of the transformer is prolonged. The problems that an existing transformer is large in working noise and not ideal in heat dissipation are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a waterproof transformer with a noise reduction shell. Background Art

[0002] Waterproof transformers are transformers with waterproof (moisture-proof / rain-proof) functions. They have a special protective shell (outer cover) and the internal transformer is potted (generally using thermally conductive epoxy resin as the potting material). They can cope with harsh environments such as high temperature, humidity, rain, and water immersion, and have a high IP protection level (IP67).

[0003] Currently, existing transformers are often installed outside buildings. When the transformer is working, a lot of noise will be generated, which is not easy to detect during the day, but will affect the rest of residents at night. In addition, the existing transformer will generate a lot of heat when working. If the transformer works in an overheated environment for a long time, its service life will be reduced.

[0004] To this end, we propose a waterproof transformer with a noise reduction housing to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a waterproof transformer with a noise reduction housing to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a waterproof transformer with a noise reduction shell, comprising a noise reduction shell and a cover plate, the cover plate is clamped on the upper surface of the noise reduction shell, a noise reduction unit is arranged on the side of the noise reduction shell, and a heat dissipation unit is arranged on the outer surface of the noise reduction shell;

[0007] The noise reduction unit includes an installation groove, a sound insulation board, a sound-absorbing hole and a sound-absorbing cotton column. The installation groove runs through the front and back of the noise reduction shell, the sound insulation board is fixedly installed on the inner wall of the installation groove, the surface of the sound insulation board is covered with a layer of plate material, the sound-absorbing hole runs through the plate surface of the plate material covering the surface of the sound insulation board, and the sound-absorbing cotton column is fixedly installed on the surface of the plate material.

[0008] Preferably, the heat dissipation unit includes an upper fan slot, an air inlet fan, an upper fixed frame, a first dustproof screen, a side fan slot, a heat dissipation fan, a side fixed frame and a second dustproof screen, the upper fan slot runs through the upper surface of the cover, the air inlet fan is fixedly installed on the inner wall of the upper fan slot, the upper fixed frame is fixedly installed on the upper surface of the cover, the first dustproof screen is clamped on the inner wall of the upper fixed frame, the side fan slot runs through the side of the noise reduction shell, the heat dissipation fan is fixedly installed on the inner wall of the side fan slot, the side fixed frame is fixedly installed on the side of the noise reduction shell, and the second dustproof screen is clamped on the inner wall of the side fixed frame.

[0009] Preferably, a cooling mechanism is provided inside the noise reduction shell, and the cooling mechanism includes a waterproof box, a first cooling circulating water tank, a water supply pipe, a sealing plug, a first pump, a cooling coil, a second cooling circulating water tank and a second pump. The waterproof box is fixedly installed on the inner bottom surface of the noise reduction shell, the first cooling circulating water tank is fixedly installed on the upper front part of the noise reduction shell, the water supply pipe is fixedly installed on the upper surface of the first cooling circulating water tank, the sealing plug is inserted into the inner wall of the water supply pipe, the first pump is fixedly installed on the upper surface of the first cooling circulating water tank, the cooling coil is attached to the side of the waterproof box, the second cooling circulating water tank is fixedly installed on the lower back part of the noise reduction shell, and the second pump is fixedly installed on the upper surface of the second cooling circulating water tank.

[0010] Preferably, a transformer body is fixedly mounted on the inner bottom surface of the waterproof box, epoxy resin filler is filled between the waterproof box and the transformer body, a top plate is installed on the upper part of the inner wall of the waterproof box, and the epoxy resin filler can conduct heat generated by the operation of the transformer body.

[0011] Preferably, the noise reduction shell has first tube holes on both sides of the upper front side, and the noise reduction shell has second tube holes on both sides of the lower back side, and the first tube holes and the second tube holes are symmetrically distributed on both sides of the noise reduction shell; the upper part of one end of the cooling coil passes through the first tube hole and is fixedly connected to the side of the first cooling circulation water tank, and the lower part of one end of the cooling coil passes through the second tube hole and is fixedly connected to the side of the second cooling circulation water tank.

[0012] Preferably, a support column is fixedly installed on the bottom surface of the noise reduction shell, a support base is fixedly installed on the bottom surface of the support column, and the support columns are symmetrically distributed at the four corners of the bottom surface of the noise reduction shell.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The waterproof transformer with a noise reduction shell has an installation groove penetrating through the front of the noise reduction shell, and a sound insulation board is fixedly installed on the inner wall of the installation groove. At the same time, a layer of plate is covered on the surface of the sound insulation board. The sound-absorbing holes on the plate can isolate and eliminate the noise generated by the transformer inside, and the sound-absorbing cotton column fixedly installed on the surface of the sound-absorbing hole can assist in absorbing the noise.

[0015] 2. The waterproof transformer with a noise reduction housing seals and waterproofs the transformer body by filling the gap between the transformer body and the waterproof box with epoxy resin filler. At the same time, the epoxy resin filler with good thermal conductivity cooperates with the cooling coil in the cooling mechanism to quickly take away the heat and help the transformer body to dissipate heat, which greatly improves the heat dissipation performance of the waterproof transformer and extends its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a three-dimensional schematic diagram of the waterproof transformer of the utility model;

[0017] Figure 2 This is a schematic diagram of the noise reduction housing structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the assembly of the cooling mechanism and the noise reduction housing of the utility model;

[0019] Figure 4 This is a schematic diagram of the cooling mechanism structure of the utility model.

[0020] In the figure: 1. noise reduction shell; 2. support column; 201. support base; 3. cover plate; 301. upper fan slot; 302. air intake fan; 303. upper fixing frame; 304. first dustproof mesh plate; 305. side fan slot; 306. cooling fan; 307. side fixing frame; 308. second dustproof mesh plate; 309. installation slot; 310. sound insulation board; 311. silencer hole; 312. sound-absorbing cotton column; 313. waterproof box; 314. transformer body; 315. epoxy resin filler; 316. top plate; 317. first pipe hole; 318. second pipe hole; 319. first cooling circulation water tank; 320. water supply pipe; 321. sealing plug; 322. first pump; 323. cooling coil; 324. second cooling circulation water tank; 325. second pump. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 4 , the utility model provides a technical solution:

[0023] Embodiment 1:

[0024] See also Figure 1 and Figure 2 The present embodiment provides a waterproof transformer with a noise reduction shell, including a noise reduction shell 1 and a cover plate 3, the cover plate 3 is clamped on the upper surface of the noise reduction shell 1, a support column 2 is fixedly installed on the bottom surface of the noise reduction shell 1, a support base 201 is fixedly installed on the bottom surface of the support column 2, the support columns 2 are symmetrically distributed at the four corners of the bottom surface of the noise reduction shell 1, a noise reduction unit is arranged on the side of the noise reduction shell 1, and a heat dissipation unit is arranged on the outer surface of the noise reduction shell 1.

[0025] See also Figures 1 to 3The noise reduction unit includes a mounting groove 309, a soundproofing plate 310, a soundproofing hole 311 and a sound-absorbing cotton column 312. The mounting groove 309 runs through the front and back of the noise reduction housing 1. The soundproofing plate 310 is fixedly mounted on the inner wall of the mounting groove 309. The surface of the soundproofing plate 310 is covered with a layer of plate material. The soundproofing hole 311 runs through the surface of the plate material covering the surface of the soundproofing plate 310. The sound-absorbing cotton column 312 is fixedly mounted on the surface of the soundproofing hole 311. By running the mounting groove 309 through the front of the noise reduction housing 1, and fixing the soundproofing plate 310 on the inner wall of the mounting groove 309, and covering the surface of the soundproofing plate 310 with a layer of plate material, the soundproofing hole 311 can isolate and eliminate the noise generated by the transformer inside it, and the sound-absorbing cotton column 312 fixedly mounted on the surface of the soundproofing hole 311 can assist in absorbing the noise.

[0026] The heat dissipation unit includes an upper fan slot 301, an air inlet fan 302, an upper fixing frame 303, a first dustproof screen 304, a side fan slot 305, a heat dissipation fan 306, a side fixing frame 307, and a second dustproof screen 308. The upper fan slot 301 runs through the upper surface of the cover plate 3, the air inlet fan 302 is fixedly installed on the inner wall of the upper fan slot 301, the upper fixing frame 303 is fixedly installed on the upper surface of the cover plate 3, the first dustproof screen 304 is clamped on the inner wall of the upper fixing frame 303, the side fan slot 305 runs through the side of the noise reduction housing 1, the heat dissipation fan 306 is fixedly installed on the inner wall of the side fan slot 305, the side fixing frame 307 is fixedly installed on the side of the noise reduction housing 1, and the second dustproof screen 308 is clamped on the inner wall of the side fixing frame 307.

[0027] When the transformer is working, it generates noise, which is first soundproofed by the sound insulation board 310 fixedly installed on the surface of the noise reduction shell 1. The remaining noise passes through the sound insulation board 310 and is silenced by the silencer holes 311 on a layer of plate covering the surface of the sound insulation board 310. The noise at the tail is absorbed by the sound-absorbing cotton column 312, thereby minimizing the propagation of noise. During the operation of the transformer, the air intake fan 302 and the heat dissipation fan 306 are connected to an external power supply so that the air intake fan 302 works to suck the external cold air into the noise reduction shell 1. At the same time, the heat dissipation fan 306 discharges the hot air inside the noise reduction shell 1 out of the noise reduction shell 1 to form air flow to assist heat dissipation.

[0028] Embodiment 2:

[0029] Based on Example 1, refer to Figure 2 A first tube hole 317 is passed through both sides of the upper front portion of the noise reduction shell 1, and a second tube hole 318 is passed through both sides of the lower back portion of the noise reduction shell 1. The first tube hole 317 and the second tube hole 318 are symmetrically distributed on both sides of the noise reduction shell 1.

[0030] See also Figure 3 and Figure 4A cooling mechanism is arranged inside the noise reduction housing 1, and the cooling mechanism includes a waterproof box 313, a first cooling circulating water tank 319, a water supply pipe 320, a sealing plug 321, a first pump 322, a cooling coil 323, a second cooling circulating water tank 324 and a second pump 325. The waterproof box 313 is fixedly installed on the inner bottom surface of the noise reduction housing 1, the first cooling circulating water tank 319 is fixedly installed on the upper front part of the noise reduction housing 1, the water supply pipe 320 is fixedly installed on the upper surface of the first cooling circulating water tank 319, the sealing plug 321 is plugged into the inner wall of the water supply pipe 320, the first pump 322 is fixedly installed on the upper surface of the first cooling circulating water tank 319, the cooling coil 323 is attached to the side of the waterproof box 313, the second cooling circulating water tank 324 is fixedly installed on the lower back part of the noise reduction housing 1, and the second pump 325 is fixedly installed on the second cooling circulating water tank 319. The transformer body 314 is fixedly installed on the upper surface of the water tank 324 and the inner bottom surface of the waterproof box 313, and the epoxy resin filler 315 is filled between the waterproof box 313 and the transformer body 314. A top plate 316 is installed on the upper part of the inner wall of the waterproof box 313. The upper part of one end of the cooling coil 323 passes through the first pipe hole 317 and is fixedly connected to the side of the first cooling circulation water tank 319, and the lower part of one end of the cooling coil 323 passes through the second pipe hole 318 and is fixedly connected to the side of the second cooling circulation water tank 324. The transformer body 314 is sealed and waterproofed by filling the gap between the transformer body 314 and the waterproof box 313 with the epoxy resin filler 315. At the same time, the epoxy resin filler 315 with good thermal conductivity can cooperate with the cooling coil 323 in the cooling mechanism to quickly take away heat and help the transformer body 314 to dissipate heat.

[0031] After the transformer body 314 is installed inside the waterproof box 313, epoxy resin filler 315 is filled between the two to seal the transformer body 314 to prevent water from entering it; when the transformer body 314 generates heat during operation, the heat is conducted through the epoxy resin filler 315 with good thermal conductivity, and cooling water is injected into the first cooling circulation water tank 319 through the water supply pipe 320, and the cooling water is cooled again through the first cooling circulation water tank 319 and the second cooling circulation water tank 324, and the cooling water is pumped from the first cooling circulation water tank 319 into the cooling coil 323 through the first pump 322. The cooling coil 323 fits the surface of the waterproof box 313 to take away the heat conducted by the epoxy resin filler 315, and dissipates heat in conjunction with the rotation of the cooling fan 306. The cooling water in the cooling coil 323 refluxes in the second cooling circulation water tank 324, and is refrigerated and then pumped back to the cooling coil 323 on the other side through the second pump 325 to circulate and cool the waterproof box 313.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A waterproof transformer with a noise reduction housing, characterized in that: It comprises a noise reduction shell (1) and a cover plate (3), wherein the cover plate (3) is snap-connected to the upper surface of the noise reduction shell (1), a noise reduction unit is arranged on the side of the noise reduction shell (1), and a heat dissipation unit is arranged on the outer surface of the noise reduction shell (1); The noise reduction unit comprises a mounting groove (309), a sound insulation board (310), a sound-absorbing hole (311) and a sound-absorbing cotton column (312); the mounting groove (309) runs through the front and back sides of the noise reduction housing (1); the sound insulation board (310) is fixedly mounted on the inner wall of the mounting groove (309); the surface of the sound insulation board (310) is covered with a layer of plate material; the sound-absorbing hole (311) runs through the plate surface of the plate material; and the sound-absorbing cotton column (312) is fixedly mounted on the surface of the plate material.

2. A waterproof transformer with a noise reduction housing according to claim 1, characterized in that: The heat dissipation unit comprises an upper fan slot (301), an air inlet fan (302), an upper fixing frame (303), a first dustproof screen (304), a side fan slot (305), a heat dissipation fan (306), a side fixing frame (307) and a second dustproof screen (308); the upper fan slot (301) runs through the upper surface of the cover plate (3); the air inlet fan (302) is fixedly mounted on the inner wall of the upper fan slot (301); the upper fixing frame (303) is fixedly mounted on the upper surface of the cover plate (3); the first dustproof screen (304) is snapped onto the inner wall of the upper fixing frame (303); the side fan slot (305) runs through the side of the noise reduction housing (1); the heat dissipation fan (306) is fixedly mounted on the inner wall of the side fan slot (305); the side fixing frame (307) is fixedly mounted on the side of the noise reduction housing (1); and the second dustproof screen (308) is snapped onto the inner wall of the side fixing frame (307).

3. A waterproof transformer with a noise reduction housing according to claim 1, characterized in that: A cooling mechanism is provided inside the noise reduction housing (1), and the cooling mechanism comprises a waterproof box (313), a first cooling circulating water tank (319), a water supply pipe (320), a sealing plug (321), a first pump (322), a cooling coil (323), a second cooling circulating water tank (324) and a second pump (325). The waterproof box (313) is fixedly mounted on the inner bottom surface of the noise reduction housing (1), the first cooling circulating water tank (319) is fixedly mounted on the upper front portion of the noise reduction housing (1), and the water supply pipe (320) is sealed with a sealing plug (321), a first pump (322), a cooling coil (323), a second cooling circulating water tank (324) and a second pump (325). The pipe (320) is fixedly mounted on the upper surface of the first cooling circulating water tank (319), the sealing plug (321) is plugged into the inner wall of the water supply pipe (320), the first pump (322) is fixedly mounted on the upper surface of the first cooling circulating water tank (319), the cooling coil (323) is attached to the side of the waterproof box (313), the second cooling circulating water tank (324) is fixedly mounted on the lower back of the noise reduction housing (1), and the second pump (325) is fixedly mounted on the upper surface of the second cooling circulating water tank (324).

4. A waterproof transformer with a noise reduction housing according to claim 3, characterized in that: A transformer body (314) is fixedly mounted on the inner bottom surface of the waterproof box (313), an epoxy resin filler (315) is filled between the waterproof box (313) and the transformer body (314), and a top plate (316) is mounted on the upper portion of the inner wall of the waterproof box (313).

5. A waterproof transformer with a noise reduction housing according to claim 4, characterized in that: First tube holes (317) are passed through on both sides of the upper front portion of the noise reduction shell (1), and second tube holes (318) are passed through on both sides of the lower back portion of the noise reduction shell (1), and the first tube holes (317) and the second tube holes (318) are symmetrically distributed on both sides of the noise reduction shell (1); The upper portion of one end of the cooling coil (323) passes through the first pipe hole (317) and is fixedly connected to the side of the first cooling circulation water tank (319), and the lower portion of one end of the cooling coil (323) passes through the second pipe hole (318) and is fixedly connected to the side of the second cooling circulation water tank (324).

6. A waterproof transformer with a noise reduction housing according to claim 1, characterized in that: The bottom surface of the noise reduction housing (1) is fixedly mounted with a support column (2), the bottom surface of the support column (2) is fixedly mounted with a support base (201), and the support columns (2) are symmetrically distributed at the four corners of the bottom surface of the noise reduction housing (1).

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