Transformer with high stability

Abstract

A high-stability transformer disclosed by the present invention comprises a switch cabinet, a transformer main body and a sound absorption device, a cabinet main body and a base are arranged in the switch cabinet, the cabinet main body comprises a first cabinet body and a second cabinet body which are arranged inside and outside, and the transformer main body is installed in the first cabinet body; the sound absorption device comprises a translation driving mechanism, a translation frame, a liquid storage tank, a connecting rod and a sound absorption cover, the translation driving mechanism is installed in the base, the power output end of the translation driving mechanism is connected with the translation frame, the upper end of the translation frame extends into the first cabinet body, and the liquid storage tank is installed on the translation frame; one end of the connecting rod penetrates through the side wall of the liquid storage tank, the other end of the connecting rod is connected with the sound absorption cover, a sound absorption opening is formed in the side edge of the sound absorption cover, and a sound absorption layer is arranged on the inner side wall of the sound absorption cover. Compared with the prior art, the heat dissipation effect can be improved, and the working stability of the transformer is improved.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, and in particular to a transformer with strong stability. Background Art

[0002] Transformers are basic equipment for power transmission and distribution, and are widely used in industries, agriculture, transportation, urban communities and other fields. There are about 17 million transformers in operation in my country, with a total capacity of about 11 billion kilovolt-amperes. Transformer losses account for about 40% of power transmission and distribution losses, and have great energy-saving potential. Common transformers are mainly composed of windings, cores, high and low voltage supporting equipment, protective casings and switch cabinets. Among them, windings, cores, high and low voltage supporting equipment and other components are assembled in the protective casing, and then the protective casing is installed in the switch cabinet to prevent dust and rain from entering the main part of the transformer.

[0003] However, in the prior art, most transformer switch cabinets mainly use dust-proof nets to filter the air entering the switch cabinet. Although this can prevent dust from entering the transformer in the switch cabinet, the dust-proof effect is poor. A lot of dust still enters the switch cabinet and adheres to the transformer body, making the transformer body in the switch cabinet susceptible to heat accumulation and short-circuit damage due to dust and humid air, thereby reducing the working stability of the transformer. In addition, the transformer body will vibrate during operation, which is likely to generate a lot of noise, affecting the working environment.

[0004] In view of this, the applicant conducted in-depth research on the above issues, which led to the present case. Summary of the invention

[0005] The main purpose of the present invention is to provide a transformer with strong stability, which can improve the heat dissipation effect and enhance the working stability of the transformer.

[0006] In order to achieve the above object, the solution of the present invention is:

[0007] A transformer with strong stability comprises a switch cabinet, a transformer body and a sound absorbing device. The switch cabinet is provided with a cabinet body and a base. The cabinet body comprises a first cabinet body and a second cabinet body arranged inside and outside. The transformer body is installed in the first cabinet body. The sound absorbing device comprises a translation driving mechanism, a translation frame, a liquid storage tank, a connecting rod and a sound absorbing cover. The translation driving mechanism is installed in the base. The power output end of the translation driving mechanism is connected to the translation frame. The upper end of the translation frame extends into the first cabinet body. The liquid storage tank is installed in the translation frame. One end of the connecting rod is penetrated on the side wall of the liquid storage tank and the other end of the connecting rod is connected to the sound absorbing cover. The side of the sound absorbing cover is provided with a sound absorbing port, and the inner wall of the sound absorbing cover is provided with a sound absorbing layer.

[0008] Furthermore, the translation drive mechanism includes a driving motor, a screw rod and a connecting seat. The driving motor is installed in the middle of the base, and the connecting seat is installed on both sides of the base. One end of the screw rod is connected to the output shaft of the driving motor, and the other end of the screw rod is rotatably connected to the connecting seat. The lower end of the translation frame is threadedly connected to the screw rod.

[0009] Furthermore, the drive motor is a bidirectional motor.

[0010] Furthermore, a guide slide groove is provided at the bottom of the base, and a guide slide block protruding downward is provided at the lower end of the translation frame, and the guide slide block is embedded in the guide slide groove for sliding connection.

[0011] Furthermore, an air inlet cavity and an air outlet cavity are formed between the first cabinet and the second cabinet, and the air inlet cavity and the air outlet cavity are separated into upper and lower parts. An air inlet hole and an air outlet hole are provided on the rear side wall of the first cabinet. The air inlet cavity is connected with the interior of the first cabinet through the air inlet hole, and the air outlet cavity is connected with the interior of the first cabinet through the air outlet hole.

[0012] Furthermore, a heat dissipation cabinet is provided on the side wall of the second cabinet body, and two installation cavities are provided in the heat dissipation cabinet, which are separated into upper and lower parts. Ventilation holes are provided on the side walls of the installation cavities, and the two installation cavities are respectively connected with the air inlet cavity and the air outlet cavity. An air supply fan is installed in the upper installation cavity, and an air exhaust fan is installed in the lower installation cavity.

[0013] Furthermore, a plurality of supporting feet are provided at the lower end of the base, and the supporting feet include a supporting rod and a supporting seat. The upper end of the supporting rod is threadedly connected to the base, and a positioning ball is provided at the lower end of the supporting foot. The supporting seat is symmetrically arranged on both sides of the supporting rod, and the supporting seats are connected by screw locking. A positioning groove cooperating with the positioning ball is provided on the supporting seat.

[0014] Compared with the prior art, the beneficial effect of the present invention is that the present invention provides low-temperature cooling air through the air supply fan, and the cooling air is guided to the air inlet through the air inlet cavity, and finally enters the first cabinet through the air inlet for cooling. And the setting position of the air inlet can be set according to the position of the transformer body, which can achieve the effect of efficient cooling of the transformer body. And the first cabinet and the second cabinet can achieve the effect of multi-layer heat insulation, reducing the impact of high temperature from the outside on the transformer. In addition, the first cabinet and the second cabinet can effectively isolate the noise emitted by the transformer body, and the sound absorbing device can further eliminate the noise emitted by the transformer body, thereby improving the sound absorption effect of the present invention and improving the impact of noise on the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the appearance structure of the present invention.

[0016] Figure 2 It is a front view of the cross-sectional structure of the present invention.

[0017] Figure 3 It is a top view of the cross-sectional structure of the present invention.

[0018] Figure 4 It is a side view of the cross-sectional structure of the present invention.

[0019] Figure 5 It is a structural schematic diagram of the translation drive mechanism.

[0020] Figure 6 It is a schematic structural diagram of the top of the present invention.

[0021] Figure 7 It is a schematic diagram of the matching structure of the strip groove and the guide convex strip.

[0022] Figure 8 It is a schematic diagram of the structural cross-section of the limit pin.

[0023] In the figure: cabinet body 11, first cabinet body 111, opening 1111, accommodating cavity 1112, giving way hole 1113, guide convex strip 1114, limiting boss 1115, limiting groove 1116, second cabinet body 112, base 12, air inlet cavity 14, air outlet cavity 15, air inlet hole 16, air outlet hole 17, transformer body 2, sound absorbing device 3, translation frame 31, liquid storage tank 32, connecting rod 33, sound absorbing cover 34, drive motor 41, screw rod 42, connecting seat 43, guide slot 44, guide slider 45, heat dissipation cabinet 51, installation cavity 511, ventilation hole 512, air supply fan 521, exhaust fan 522, support rod 53, support seat 54, closing plate 6, rubber strip sleeve 61, positioning rod 62, strip groove 63, rotating wheel 71, baffle 72, ring 721, steel rope 73, limit pin 74, and top spring 75. DETAILED DESCRIPTION

[0024] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0025] like Figure 1-8As shown, a transformer with strong stability includes a switch cabinet, a transformer body 2 and a sound absorbing device 3. A cabinet body 11 and a base 12 are provided in the switch cabinet. The cabinet body 11 includes a first cabinet body 111 and a second cabinet body 112 arranged inside and outside. The transformer body 2 is installed in the first cabinet body 111. The sound absorbing device 3 includes a translation drive mechanism, a translation frame 31, a liquid storage tank 32, a connecting rod 33 and a sound absorbing cover 34. The translation drive mechanism is installed in the base 12. The power output end of the translation drive mechanism is connected to the translation frame 31. The upper end of the translation frame 31 extends into the first cabinet body 111. The liquid storage tank 32 is installed in the translation frame 31. The liquid storage tank 32 is filled with water. A water inlet pipe and a water outlet pipe can be provided on the liquid storage tank 32 to facilitate filling and discharging of water. One end of the connecting rod 33 penetrates into the liquid storage tank 32 for sealing connection, and the other end of the connecting rod 33 is connected to the sound absorbing cover 34. The side of the sound absorbing cover 34 close to the transformer body 2 is provided with a sound absorbing port, and the inner wall of the sound absorbing cover 34 is provided with a sound absorbing layer, which can be made of sound absorbing materials such as sound absorbing cotton. After adopting the above structure, the translation drive mechanism can drive the liquid storage tank 32 to translate close to or away from the transformer body 2, so that it can be applied to transformer bodies 2 of various models and sizes. The sound absorbing cover 34 can be symmetrically covered on both sides of the transformer body 2. When the transformer body 2 makes a loud noise, the sound absorbing layer can absorb the noise. In addition, the noise can be absorbed by the sound absorbing cover 34, and then transmitted to the liquid storage tank 32 through the connecting rod 33. The vibration generated by the noise is gradually reduced by the liquid, further improving the sound absorption effect. In this embodiment, the translation drive mechanism includes a driving motor 41, a screw rod 42 and a connecting seat 43. The driving motor 41 is installed in the middle of the base 12, and the connecting seat 43 is installed on both sides of the base 12. One end of the screw rod 42 is connected to the output shaft of the driving motor 41, and the other end of the screw rod 42 is rotatably connected to the connecting seat 43. The lower end of the translation frame 31 is threadedly connected to the screw rod 42. The driving motor 41 is a bidirectional motor, which can drive the screw rods 42 on both sides to rotate together, thereby driving the translation frame 31 and the liquid storage tank to move synchronously. A guide slide groove 44 is provided at the bottom of the base 12, and a guide slider 45 protruding downward is provided at the lower end of the translation frame 31. The guide slider 45 is embedded in the guide slide groove 44 for sliding connection. This makes the translation frame 31 move more smoothly.

[0026] In the present embodiment, an air inlet chamber 14 and an air outlet chamber 15 which are separated from each other in upper and lower parts are formed between the first cabinet 111 and the second cabinet 112. An air inlet hole 16 and an air outlet hole 17 are provided on the rear side wall of the first cabinet 111. The air inlet chamber 14 is communicated with the interior of the first cabinet 111 through the air inlet hole 16, and the air outlet chamber 15 is communicated with the interior of the first cabinet 111 through the air outlet hole 17. A heat dissipation cabinet 51 is provided on the side of the second cabinet 112. The heat dissipation cabinet 51 has two installation chambers 511 which are separated from each other in upper and lower parts. Ventilation holes 512 are provided on the side walls of the installation chambers 511. The two installation chambers 511 are respectively communicated with the air inlet chamber 14 and the air outlet chamber 15. An air supply fan 521 is installed in the installation chamber 511 at the upper end, and an air exhaust fan 522 is installed in the installation chamber 511 at the lower end. The air supply fan 521 and the air exhaust fan 522 are conventional air exhaust and ventilation equipment on the market, which will not be described in detail herein. The air supply fan 521 can deliver the external low-temperature air to the air inlet chamber 14, and then deliver it to the transformer body at a fixed point through the air inlet hole 16. Since the low-temperature air is easy to sink after entering, the air quickly exchanges heat with the transformer body and flows downward. The exhaust fan 522 can generate a suction force to quickly suck the air after heat exchange at the bottom of the first cabinet 111 from the air outlet hole 17 into the air outlet chamber 15, and then discharge it from the ventilation hole. In this way, the second cabinet 112 and the first cabinet 111 form a fast air circulation flow channel, which can accelerate the heat exchange gas circulation, thereby improving the cooling effect on the transformer body. In addition, the external gas needs to pass through the ventilation hole and the air inlet hole 16 in turn before entering the first cabinet 111. At the same time, the air inlet chamber 14 is provided with a corner, so that external moisture and dust are not easy to enter the first cabinet 111, thereby improving the sealing performance of the present invention.

[0027] In this embodiment, the lower end of the base 12 is provided with a plurality of legs, the legs include a support rod 53 and a support seat 54, the upper end of the support rod 53 is threadedly connected to the base 12, the lower end of the leg is provided with a positioning ball, the support seats 54 are symmetrically arranged on both sides of the support rod 53, the support seats 54 are connected by screws, and the support seats 54 are provided with positioning grooves that cooperate with the positioning balls. After adopting the above structure, the supports 54 are connected to each other to support the switch cabinet. In addition, the support seats 54 can be rotated and fixed relative to the positioning ball, so as to adjust the installation angle of the support seats 54, and can be installed on an inclined plane.

[0028] Compared with the prior art, the beneficial effect is that the present invention provides low-temperature cooling air through the air supply fan 521, and the cooling air is quickly guided to the air inlet hole 16 through the air inlet cavity 14, and finally enters the first cabinet 111 through the air inlet hole 16 for cooling. And the setting position of the air inlet hole 16 can be set according to the position of the transformer body 2, which can achieve the effect of efficient cooling of the transformer body 2. And the first cabinet 111 and the second cabinet 112 can play the role of multi-layer heat insulation, reducing the impact of high temperature in the outside world on the transformer. In addition, the first cabinet 111 and the second cabinet 112 can effectively isolate the noise emitted by the transformer body 2, and the sound absorbing device 3 can further eliminate the noise emitted by the transformer body 2, thereby improving the sound absorption effect of the present invention and improving the impact of noise on the working environment.

[0029] More preferably, the transformer is easily affected by flying insects and dust, which may cause the transformer to short-circuit and catch fire due to line damage or high temperature. In order to improve the fire resistance of the transformer. The front side wall of the first cabinet 111 is provided with an opening 1111, and the front side wall is provided with a accommodating cavity 1112 on both sides of the opening 1111. A slidingly connected closing plate 6 is provided in the accommodating cavity 1112, and the accommodating cavity 1112 is filled with vermiculite material. The front side wall and the rear side wall of the closing plate 6 are provided with a rubber sheet layer, and the rubber sheet layer can have a sealing effect between the sealing plate and the side wall of the accommodating cavity 1112. The end of the closing plate 6 is provided with a rubber strip sleeve 61. When the closing plate 6 is closed, the rubber strip sleeves 61 on both sides fit each other to achieve a sealing effect. The upper end of the closing plate 6 is provided with a positioning rod 62, the upper surface of the first cabinet 111 is provided with a clearance hole 1113 for the positioning rod 62 to pass through, the lower end of the closing plate 6 is provided with a strip groove 63, and the lower surface of the accommodating cavity 1112 is provided with a guide convex strip 1114 that is embedded in the strip groove 63. After adopting the above structure, the positioning rod 62 and the clearance groove are slidably matched, and the strip groove 63 and the guide convex strip 1114 are slidably matched, which plays a guiding effect on the closing plate 6, so that the closing plate 6 slides more smoothly. In addition, the upper end of the first cabinet 111 is provided with a rotating wheel 71, and the interior of the first cabinet 111 is provided with a baffle plate 72 that is sealed and slidably connected. The upper end of the baffle plate 72 is provided with a ring 721, and the ring 721 is connected to the positioning rod 62 through a steel rope 73, and the middle part of the steel rope 73 is wound around the rotating wheel 71. A limiting boss 1115 is provided on the inner side wall of the rear end of the first cabinet 111. The first cabinet 111 is provided with a limit groove 1116 on the upper side wall and the lower side wall of the opening 1111, and a limit pin 74 is provided in the limit groove 1116 for sliding connection, and a push spring 75 is provided between the limit pin 74 and the limit groove 1116. After adopting the above structure, during normal operation, the limit pin 74 can push against the closing plate 6 to position the closing plate 6 in the accommodating cavity 1112. And the closing plate 6 lifts the baffle 72 upwards through the steel rope 73, so that the baffle 72 cannot cover the air inlet 16 and the air outlet 17. When the transformer catches fire, the vermiculite expands due to heat and pushes the closing plate 6 outward to fit, thereby sealing the opening 1111. As the closing plates 6 fit together, the steel rope 73 is loosened, and the baffle 72 is placed downward and fixed on the limiting boss 1115. A rubber pad can also be provided on the inner side of the baffle 72, and the air inlet 16 and the air outlet 17 are closed by the baffle 72, so that the interior of the first cabinet 111 is in a completely sealed state. When the transformer inside the first cabinet 111 short-circuits and burns, the vermiculite expands rapidly after being subjected to high temperature and pushes the closing plates 6 to fit together and close the opening 1111. At the same time, the baffle 72 slides down to the limiting boss 1115 and is fixed, thereby sealing the air inlet 16 and the air outlet 17.In this way, the interior of the first cabinet 111 is in a completely sealed state, so that the interior of the first cabinet 111 is isolated from oxygen, which has the effect of extinguishing the flame. In addition, vermiculite is an efficient high-temperature resistant fireproof material, which can further enhance the fireproof effect of the present invention.

[0030] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A transformer with strong stability, characterized in that: The utility model comprises a switch cabinet, a transformer body and a sound absorbing device. The switch cabinet is provided with a cabinet body and a base. The cabinet body comprises a first cabinet body and a second cabinet body arranged inside and outside. The transformer body is installed in the first cabinet body. The sound absorbing device comprises a translation driving mechanism, a translation frame, a liquid storage tank, a connecting rod and a sound absorbing cover. The translation driving mechanism is installed in the base. The power output end of the translation driving mechanism is connected to the translation frame. The upper end of the translation frame extends into the first cabinet body. The liquid storage tank is installed in the translation frame. One end of the connecting rod is penetrated through the side wall of the liquid storage tank and the other end of the connecting rod is connected to the sound absorbing cover. The side of the sound absorbing cover is provided with a sound absorbing port, and the inner wall of the sound absorbing cover is provided with a sound absorbing layer.

2. A transformer with strong stability as claimed in claim 1, characterized in that: The translation drive mechanism includes a driving motor, a screw rod and a connecting seat. The driving motor is installed in the middle of the base, and the connecting seat is installed on both sides of the base. One end of the screw rod is connected to the output shaft of the driving motor, and the other end of the screw rod is rotatably connected to the connecting seat. The lower end of the translation frame is threadedly connected to the screw rod.

3. A transformer with strong stability as claimed in claim 2, characterized in that: The driving motor is a bidirectional motor.

4. A transformer with strong stability as claimed in claim 2, characterized in that: A guide slide groove is provided at the bottom of the base, and a guide slide block protruding downward is provided at the lower end of the translation frame. The guide slide block is embedded in the guide slide groove and is slidably connected.

5. A transformer with strong stability as claimed in claim 1, characterized in that: An air inlet cavity and an air outlet cavity are formed between the first cabinet and the second cabinet, and the air inlet cavity and the air outlet cavity are separated into upper and lower parts. An air inlet hole and an air outlet hole are provided on the rear side wall of the first cabinet. The air inlet cavity is connected with the interior of the first cabinet through the air inlet hole, and the air outlet cavity is connected with the interior of the first cabinet through the air outlet hole.

6. A transformer with strong stability as claimed in claim 5, characterized in that: A heat dissipation cabinet is provided on the side wall of the second cabinet body, and two installation cavities are provided in the heat dissipation cabinet and are separated from each other up and down. Ventilation holes are provided on the side walls of the installation cavities, and the two installation cavities are respectively connected with the air inlet cavity and the air outlet cavity. An air supply fan is installed in the installation cavity at the upper end, and an air exhaust fan is installed in the installation cavity at the lower end.

7. A transformer with strong stability as claimed in claim 1, characterized in that: The lower end of the base is provided with a plurality of supporting feet, which include a supporting rod and a supporting seat. The upper end of the supporting rod is threadedly connected to the base, and the lower end of the supporting foot is provided with a positioning ball. The supporting seats are symmetrically arranged on both sides of the supporting rod and are connected by screw locking. The supporting seat is provided with a positioning groove that cooperates with the positioning ball.

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