A dry-type transformer with high heat dissipation

Abstract

The utility model relates to dry -type transformer field, concretely is a kind of dry -type transformer of high -efficient heat dissipation, including dry -type transformer;Terminal box;Mounting base;Mounting base plate;Cooling mounting frame;Cooling air baffle, cooling air baffle is set on cooling mounting frame, the side of cooling air baffle is arranged and is equipped with multiple air inlet slots, the other side of cooling air baffle is equipped with water cooling tank, and the side end surface of cooling air baffle is equipped with water suction slot, and water suction slot and air inlet slot are all communicated with water cooling tank, the other side of cooling air baffle is equipped with multiple inclined air deflector;Water cooling pipe spare, water cooling pipe spare is set in water cooling tank;Water suction component, water suction installation groove is set in water cooling tank, water suction component is slidably set in water suction installation groove by water suction slot, and water suction component includes water suction plate and multiple water suction water curtain;Humidity sensing alarm. Through water cooling temperature natural air cooling dry -type transformer, prevent cooling water from being directly sprayed to dry -type transformer simultaneously, avoid the occurrence of safety accident.

Description

Technical Field

[0001] This utility model relates to the field of dry-type transformers, and more particularly to a dry-type transformer with high-efficiency heat dissipation. Background Technology

[0002] Dry-type transformers are widely used in local lighting, high-rise buildings, airports, docks, CNC machinery and equipment and other places. Simply put, a dry-type transformer is a transformer whose core and windings are not immersed in insulating oil. A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Dry-type transformers are a commonly used type of transformer.

[0003] After prolonged use, dry-type transformers generate high temperatures in their internal coils. To ensure stable operation, current technologies often employ a water-cooled protective cover around the coils. This cover encloses the coils, allowing heat exchange between the high-temperature coils and the cool water inside, effectively cooling the transformer. However, damage to the water-cooled protective cover can lead to leakage. The leaked water, due to the pressure of the water cooling circulation, can spray out from the damaged area onto the coils, causing a short circuit in the entire dry-type transformer and potentially resulting in a serious safety accident. Utility Model Content

[0004] This invention provides a high-efficiency heat dissipation dry-type transformer that uses water cooling and natural air cooling to cool the transformer, while preventing cooling water from being directly sprayed onto the transformer, thereby improving the service life of the dry-type transformer and avoiding safety accidents.

[0005] To achieve the above objectives, this utility model provides a high-efficiency heat dissipation dry-type transformer, comprising:

[0006] A dry-type transformer, wherein a junction box is provided on the top of the dry-type transformer, a mounting base is provided at the bottom of the dry-type transformer, and multiple mounting plates are provided at the bottom of the mounting base;

[0007] A cooling mounting bracket is mounted on the mounting base plate, and the cooling mounting bracket is symmetrically arranged on both sides of the mounting base;

[0008] A cooling air plate is mounted on the cooling mounting bracket. Multiple air inlets are arranged on one side of the cooling air plate, and a water cooling groove is opened on the other side of the cooling air plate. A water suction groove is opened on the side end face of the cooling air plate. Both the water suction groove and the air inlet are connected to the water cooling groove. Multiple inclined air guide plates are arranged on the other side of the cooling air plate.

[0009] Water-cooled pipe fittings are disposed within the water-cooling tank;

[0010] A water-absorbing assembly is provided in the water-cooling tank, and the water-absorbing mounting groove is connected to the water-absorbing tank opening. The water-absorbing assembly is slidably disposed in the water-absorbing mounting groove through the water-absorbing tank opening. The water-absorbing assembly is located on one side of the water-cooling pipe, away from the air inlet. The water-absorbing assembly includes a water-absorbing plate and multiple water-absorbing curtains. Multiple water curtain slots are opened on the water-absorbing plate, and the water-absorbing curtains are disposed in the water curtain slots.

[0011] A humidity sensor alarm is installed at the bottom of the water-cooling tank.

[0012] Furthermore, the water-cooled pipe fittings include a main water inlet pipe, branch water inlet pipes, multiple branch water inlet pipes, and a return water branch pipe. The main water inlet pipe is located inside the cooling air plate, near the water intake port, with its inlet end located at the bottom of the cooling air plate. The branch water inlet pipes are located inside the water-cooled tank near the top of the tank, with one end connected to the outlet of the main water inlet pipe. One end of each branch water inlet pipe is connected to the branch water inlet pipe, and the branch water inlet pipes are perpendicular to the branch water inlet pipe. The other end of each branch water inlet pipe is connected to the return water branch pipe, and the branch water inlet pipes are perpendicular to the return water branch pipe. The return water branch pipes are located inside the water-cooled tank near the bottom, with one end extending out of the cooling air plate and the other end away from the inlet end of the main water inlet pipe.

[0013] Furthermore, the high-efficiency heat dissipation dry-type transformer also includes a circulating mounting base, which is disposed on the mounting base plate and located between the cooling mounting bracket and the mounting base.

[0014] Furthermore, the high-efficiency heat dissipation dry-type transformer also includes a circulation assembly, which is disposed on the circulation mounting base. The circulation assembly includes a circulation box, a first ducting fan, a second ducting fan, and a control unit. The circulation box has ducting air inlets located at the top of the circulation box and on the side near the mounting base. The first ducting fan is disposed on one side of the circulation box, and the second ducting fan is disposed inside the circulation box.

[0015] Furthermore, the control unit includes a temperature sensor and a controller. The temperature sensor is located on the other side of the cooling fan plate and is close to the dry-type transformer. The temperature sensor, the first exhaust fan, and the second exhaust fan are all connected to the controller.

[0016] Preferably, the water inlet branch pipe is a U-shaped pipe.

[0017] Compared with the prior art, the high-efficiency heat dissipation dry transformer according to the present invention features a natural airflow that passes through the water-cooled pipes in the cooling air plate for cooling. The cooled natural airflow is then guided to the dry transformer by the air guide plate, thereby reducing the temperature of the dry transformer. Simultaneously, when a leak occurs in the water-cooled pipes in the cooling air plate, the cooling circulating water sprayed from the water-cooled pipes will be sprayed onto the water absorption component. The water absorption component absorbs the cooling circulating water, preventing it from being sprayed onto the dry transformer and thus avoiding damage. Furthermore, by installing a humidity sensor alarm for the water absorption component in the water-cooling tank, an alarm is triggered when the humidity sensor alarm reaches a set value, thereby notifying the user to carry out maintenance and preventing further damage. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency heat dissipation dry-type transformer according to the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of a cooling fan plate in a high-efficiency heat dissipation dry-type transformer according to the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of a high-efficiency heat dissipation dry transformer without water absorption components and guide plates.

[0021] Figure 4 This is a schematic diagram of the water absorption plate in a high-efficiency heat dissipation dry transformer according to the present invention.

[0022] Figure 5 This is a first-view structural schematic diagram of the circulating component in a high-efficiency heat dissipation dry transformer according to the present invention.

[0023] Figure 6 This is a second-view structural diagram of the circulating assembly in a high-efficiency heat dissipation dry-type transformer according to the present invention; and

[0024] Figure 7 The right view shows the overall structure of a high-efficiency heat dissipation dry-type transformer according to this utility model.

[0025] Figure label:

[0026] 1100. Dry-type transformer; 1200. Junction box; 1300. Mounting base; 1400. Mounting base plate;

[0027] 2000. Cooling mounting bracket;

[0028] 3000. Cooling fan plate; 3100. Air inlet slot; 3200. Water cooling tank; 3210. Water suction mounting slot; 3300. Water suction slot inlet; 3400. Air guide plate;

[0029] 4000. Water-cooled pipe fittings; 4100. Main inlet pipe; 4200. Branch inlet pipe; 4300. Branch inlet pipe; 4400. Return water branch pipe;

[0030] 5000. Water absorption assembly; 5100. Water absorption plate; 5200. Water curtain trough opening;

[0031] 6100. Circulation mounting base; 6200. Circulation assembly; 6210. Circulation air box; 6220. First exhaust fan; 6230. Second exhaust fan; 6240. Exhaust vent;

[0032] 7000. Humidity sensor alarm. Detailed Implementation

[0033] To provide a better understanding of the purpose, structure, features, and functions of this utility model, detailed descriptions are provided below with reference to specific embodiments.

[0034] like Figures 1-4 As shown in the figure, a high-efficiency heat dissipation dry-type transformer according to an embodiment of the present invention includes...

[0035] Dry-type transformer 1100, junction box 1200, mounting base 1300, mounting base plate 1400, cooling mounting bracket 2000, cooling air plate 3000, water absorption assembly 5000 and humidity sensor alarm 7000;

[0036] A junction box 1200 is installed on the top of the dry-type transformer 1100, and a mounting base 1300 is installed at the bottom of the dry-type transformer 1100. Multiple mounting base plates 1400 are installed at the bottom of the mounting base 1300.

[0037] The cooling mounting bracket 2000 is mounted on the mounting base plate 1400, and the cooling mounting bracket 2000 is symmetrically arranged on both sides of the mounting base 1300;

[0038] The cooling air plate 3000 is mounted on the cooling mounting bracket 2000. Multiple air inlets 3100 are arranged on one side of the cooling air plate 3000, and a water cooling groove 3200 is opened on the other side of the cooling air plate 3000. A water suction groove 3300 is opened on the side end face of the cooling air plate 3000. Both the water suction groove 3300 and the air inlet 3100 are connected to the water cooling groove 3200. Multiple inclined air guide plates 3400 are arranged on the other side of the cooling air plate 3000, and the air inlet 3100 has a certain inclination.

[0039] Water-cooled pipe fittings 4000 are installed inside the water-cooled tank 3200;

[0040] A water-absorbing mounting groove 3210 is provided inside the water-cooling tank 3200. The water-absorbing mounting groove 3210 is connected to the water-absorbing groove opening 3300. The water-absorbing component 5000 is slidably installed in the water-absorbing mounting groove 3210 through the water-absorbing groove opening 3300. The water-absorbing component 5000 is located on one side of the water-cooling pipe fitting 4000 away from the air inlet 3100. The water-absorbing component 5000 includes a water-absorbing plate 5100 and multiple water-absorbing curtains. Multiple water curtain slots 5200 are opened on the water-absorbing plate 5100, and the water-absorbing curtains are installed in the water curtain slots 5200.

[0041] The humidity sensor alarm 7000 is installed at the bottom of the water cooling tank 3200. The humidity sensor alarm 7000 is used to detect the humidity of the water absorption curtain.

[0042] When installing the high-efficiency heat dissipation dry transformer of this utility model, the user needs to install multiple water-absorbing curtains into the water-absorbing curtain slot 5200, and then install the water-absorbing plate 5100 filled with water-absorbing curtains into the cooling air plate 3000 through the water-absorbing slot 3300 and fix the water-absorbing plate 5100. After completing the above installation, the cooling air plate 3000 is fixedly set on the cooling mounting bracket 2000. At this time, the water inlet and water outlet of the water-cooled circulation component 6200 are respectively connected to the water inlet and water outlet of the water-cooled pipe fitting 4000 to complete the overall assembly of this utility model.

[0043] After prolonged use, the high-efficiency heat dissipation dry-type transformer 1100 of this utility model needs to be cooled. At this time, natural air enters the water-cooling tank 3200 through the air inlet 3100 of the cooling air plate 3000. The natural air exchanges heat with the water-cooling pipes 4000, thereby cooling the natural air. The cooled natural air blows towards the other end of the water-cooling tank 3200 and passes through the water absorption component 5000. The cooled natural air blown out will be blown downwards towards the dry-type transformer 1100 by the inclined air guide plate 3400. The coils of the existing dry-type transformer 1100 are all equipped with heat dissipation protective covers, so that the cooled natural air can directly act on the coils of the dry-type transformer 1100, thereby achieving the purpose of heat dissipation of the dry-type transformer 1100.

[0044] When the water-cooled pipe 4000 is damaged, pressurized cooling circulating water is sprayed from the damaged area onto the water-absorbing curtain. The water-absorbing curtain absorbs the sprayed cooling circulating water, preventing it from being directly sprayed onto the coils of the dry-type transformer 1100. At the same time, natural wind continuously passes through the gaps in the water-absorbing curtain, ensuring that the cooling effect of natural wind is not reduced. Furthermore, the natural wind passing through the water-containing water-absorbing curtain also carries away some moisture. When the humidity sensor alarm 7000 detects that the humidity in the water-cooled tank 3200 is too high, the humidity sensor alarm 7000 will sound an alarm, prompting personnel to perform shutdown and maintenance operations to prevent excessive leakage of cooling circulating water and avoid waste of water resources.

[0045] Furthermore, such as Figure 2 and Figure 3 As shown, the water-cooled pipe fitting 4000 includes a main water inlet pipe 4100, a branch water inlet pipe 4200, multiple branch water inlet pipes 4300, and a return water branch pipe 4400. The main water inlet pipe 4100 is installed inside the cooling air plate 3000, near the water intake port 3300, with its inlet end located at the bottom of the cooling air plate 3000. The branch water inlet pipes 4200 are installed inside the water-cooled tank 3200, near the top of the water-cooled tank 3200, with one end connected to the outlet of the main water inlet pipe 4100. One end of multiple water inlet branch pipes 4300 is connected to water inlet branch pipe 4200, and water inlet branch pipe 4300 is perpendicular to water inlet branch pipe 4200. The other end of water inlet branch pipe 4300 is connected to return water branch pipe 4400, and water inlet branch pipe 4300 is perpendicular to return water branch pipe 4400. Return water branch pipe 4400 is located inside water cooling tank 3200 near the bottom of water cooling tank 3200. One end of return water branch pipe 4400 extends out of cooling air plate 3000, and one end of return water branch pipe 4400 is far away from the water inlet end of water inlet main pipe 4100. The water inlet of the water-cooled circulation component 6200 pumps cooling circulating water into the main water inlet 4100, and then the water inlet of the main water inlet 4100 enters the water inlet branch pipe 4200 through the water outlet. The cooling circulating water then flows into the bottom return branch pipe 4400 of the water-cooled tank 3200 through multiple water inlet branch pipes 4300. The principle is the same as the high inlet and low outlet of the water inlet of the radiator, so that each water inlet branch pipe 4300 can be filled with cooling circulating water, thereby cooling the cavity of the water-cooled tank 3200 and improving the cooling efficiency of natural air entering the cavity of the water-cooled tank 3200.

[0046] Furthermore, such as Figure 1 and Figure 7 As shown, the high-efficiency heat dissipation dry-type transformer also includes a circulation mounting base 6100, which is mounted on the mounting base plate 1400 and located between the cooling mounting bracket 2000 and the mounting base 1300. After prolonged use, the efficiency of cooling the dry-type transformer 1100 by natural airflow decreases. At this time, by setting up the circulation component 6200, the airflow circulation near the dry-type transformer 1100 is accelerated, causing the natural airflow to blow from top to bottom over the heat dissipation protective cover of the dry-type transformer 1100 and then flow out through the circulation component 6200, achieving high-speed airflow and thus improving heat dissipation efficiency.

[0047] Furthermore, such as Figure 1 , Figure 5 , Figure 6 and Figure 7As shown, the high-efficiency heat dissipation dry-type transformer also includes a circulation assembly 6200, which is mounted on the circulation mounting base 6100. The circulation assembly 6200 includes a circulation box 6210, a first induced draft fan 6220, a second induced draft fan 6230, and control components. The circulation box 6210 has induced draft vents 6240, which are located on the top of the circulation box 6210 and on the side near the mounting base 1300. The first induced draft fan 6220 is located on one side of the circulation box 6210, and the second induced draft fan 6230 is located inside the circulation box 6210. The first exhaust fan 6220 is used to draw gas from the circulating air box 6210, thereby generating suction at the two exhaust vents 6240. The suction generated by the two exhaust vents 6240 acts on the hot air at the heat dissipation protective cover of the dry-type transformer 1100 and the hot air near the bottom of the dry-type transformer 1100, respectively, accelerating the gas flow and improving the heat dissipation efficiency. The control unit is used to detect the temperature of the outer perimeter of the heat dissipation protective cover of the dry-type transformer 1100. When the temperature reaches the set value, the control unit controls the second exhaust fan 6230 to operate. The airflow direction of the second exhaust fan 6230 is the same as that of the first exhaust fan 6220. After the second exhaust fan 6230 rotates, it assists the first exhaust fan 6220, increasing the suction generated at the two exhaust vents 6240, accelerating the gas flow rate in the circulating air box 6210, and improving the cooling efficiency.

[0048] Furthermore, the control components include a temperature sensor and a controller. The temperature sensor is located on the other side of the cooling fan plate 3000, and is close to the dry-type transformer 1100. The temperature sensor, the first exhaust fan 6220, and the second exhaust fan 6230 are all connected to the controller. The controller is a PLC controller with a corresponding program. The temperature sensor is connected to the controller, which converts the electrical signal from the temperature sensor and sends it to the program for processing and analysis. If the analysis result indicates that the second exhaust fan 6230 is turned on, the controller will start the second exhaust fan 6230; if the analysis result indicates that the second exhaust fan 6230 is turned off, the controller will turn it off.

[0049] Preferably, the inlet branch pipe 4300 adopts a U-shaped pipe. The U-shaped pipe can increase the flow path of the cooling circulating water and achieve the maximum cooling effect.

[0050] In the description of this utility model, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" and their orientation or positional relationships are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0051] This utility model has been described by the above-described embodiments; however, these embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. Conversely, any modifications and refinements made without departing from the spirit and scope of this utility model are within the scope of patent protection of this utility model.

Claims

1. A high-efficiency heat dissipation dry-type transformer, characterized in that, include: A dry-type transformer, wherein a junction box is provided on the top of the dry-type transformer, a mounting base is provided at the bottom of the dry-type transformer, and multiple mounting plates are provided at the bottom of the mounting base; A cooling mounting bracket is mounted on the mounting base plate, and the cooling mounting bracket is symmetrically arranged on both sides of the mounting base; A cooling air plate is mounted on the cooling mounting bracket. Multiple air inlets are arranged on one side of the cooling air plate, and a water cooling groove is opened on the other side of the cooling air plate. A water suction groove is opened on the side end face of the cooling air plate. Both the water suction groove and the air inlet are connected to the water cooling groove. Multiple inclined air guide plates are arranged on the other side of the cooling air plate. Water-cooled pipe fittings are disposed within the water-cooling tank; A water-absorbing assembly is provided in the water-cooling tank, and the water-absorbing mounting groove is connected to the water-absorbing tank opening. The water-absorbing assembly is slidably disposed in the water-absorbing mounting groove through the water-absorbing tank opening. The water-absorbing assembly is located on one side of the water-cooling pipe, away from the air inlet. The water-absorbing assembly includes a water-absorbing plate and multiple water-absorbing curtains. Multiple water curtain slots are opened on the water-absorbing plate, and the water-absorbing curtains are disposed in the water curtain slots. A humidity sensor alarm is installed at the bottom of the water-cooling tank.

2. The high-efficiency heat dissipation dry-type transformer according to claim 1, characterized in that, The water-cooled piping includes a main inlet pipe, branch inlet pipes, multiple branch inlet pipes, and a return pipe. The main inlet pipe is located inside the cooling fan plate, near the water intake port, with its inlet end at the bottom of the cooling fan plate. The branch inlet pipes are located inside the water-cooled tank, near the top, with one end connected to the outlet of the main inlet pipe. One end of each branch inlet pipe is connected to the branch inlet pipe and is perpendicular to it. The other end of each branch inlet pipe is connected to the return pipe and is perpendicular to it. The return pipe is located inside the water-cooled tank, near the bottom, with one end extending out of the cooling fan plate and the other end away from the inlet end of the main inlet pipe.

3. The high-efficiency heat dissipation dry-type transformer according to claim 1, characterized in that, It also includes a circulation mounting base, which is disposed on the mounting base plate and located between the cooling mounting bracket and the mounting base.

4. The high-efficiency heat dissipation dry-type transformer according to claim 3, characterized in that, It also includes a circulation component, which is disposed on the circulation mounting base. The circulation component includes a circulation air box, a first diversion fan, a second diversion fan, and a control component. The circulation air box has a diversion air outlet, which is located at the top of the circulation air box and on the side near the mounting base. The first diversion fan is disposed on one side of the circulation air box, and the second diversion fan is disposed inside the circulation air box.

5. The high-efficiency heat dissipation dry-type transformer according to claim 4, characterized in that, The control unit includes a temperature sensor and a controller. The temperature sensor is located on the other side of the cooling fan plate and is close to the dry-type transformer. The temperature sensor, the first exhaust fan, and the second exhaust fan are all connected to the controller.

6. The high-efficiency heat dissipation dry-type transformer according to claim 2, characterized in that, The water inlet branch pipe adopts a U-shaped pipe.

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