Dry-type transformer temperature control device

Abstract

The utility model discloses a dry-type transformer temperature control device which comprises a cabinet body, a transformer is installed in the cabinet body, air outlets are formed in the bottom end of the cabinet body, the air outlets are in a rectangular ring shape and located on the periphery of the transformer, air inlet channels are formed in the side walls of the top end of the cabinet body, and air outlet channels are formed in the side walls of the top end of the cabinet body. A heat dissipation opening is formed in the top end of the cabinet body, a heat dissipation fan is arranged on the inner wall of the heat dissipation opening, a heat dissipation sleeve is annularly arranged on the periphery of the transformer, a water tank is arranged in the bottom end of the cabinet body, a circulating pump communicated with the heat dissipation sleeve is arranged at one end of the water tank, and heat dissipation fins are communicated with the other end of the water tank. And the other ends of the radiating fins are communicated with the radiating sleeve. By arranging the air outlet, the air inlet channel and the heat dissipation sleeve, uniform heat dissipation can be carried out on the periphery of the transformer, and the situation that the working performance of the transformer is affected due to the local process of the transformer caused by uneven heat dissipation of the transformer is avoided.

Description

Technical Field

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

[0002] Dry-type transformers are transformers whose core and windings are not immersed in insulating oil. They are widely used in local lighting, high-rise buildings, airports, docks, CNC machinery and equipment, etc. Dry-type transformers require good heat dissipation and cannot work in a heated environment for a long time, which seriously affects their service life.

[0003] A search revealed a Chinese patent publication number CN221708516U, which discloses a temperature control device for an insulated dry-type transformer. The device includes a housing with a door hinged to the housing. The door has an observation window. A partition is fixedly installed inside the housing, and a transformer is fixedly installed on the top of the partition. Two L-shaped plates are fixedly installed on the inner walls of both sides of the housing. The four L-shaped plates are paired, and a drying plate is provided between the corresponding two L-shaped plates.

[0004] This patented technology incorporates a cooling mechanism that enables rapid cooling of the transformer's interior, thereby ensuring that the transformer's temperature remains within a safe range. However, the heat collection plate and ventilation grid in the cooling mechanism are only located on one side of the transformer, which can lead to uneven temperature distribution during heat dissipation, causing localized overheating and affecting the transformer's performance. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a dry-type transformer temperature control device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A dry-type transformer temperature control device includes a cabinet, inside which a transformer is installed. An air outlet is provided at the bottom of the cabinet. The air outlet is rectangular and located around the transformer. Air inlets are provided on the top side walls of the cabinet, with one end of each air inlet connected to the air outlet. A heat dissipation vent is provided at the top of the cabinet, and a heat dissipation fan is provided on the inner wall of the heat dissipation vent. A heat dissipation sleeve is provided around the transformer in a ring shape.

[0008] As a further improvement of this utility model: a filter screen is provided on one side of the heat dissipation port and the air intake channel, and a temperature detector is provided on the outer wall of the heat dissipation sleeve near the transformer.

[0009] As a further embodiment of this utility model: a water tank is provided inside the bottom of the cabinet, a circulation pump connected to the heat dissipation sleeve is provided at one end of the water tank, a heat dissipation fin is connected to the other end of the water tank, and the other end of the heat dissipation fin is connected to the heat dissipation sleeve.

[0010] As a further improvement of this utility model: the outer wall of the cabinet is provided with heat dissipation grids located on both sides of the heat sink, and another heat dissipation fan is provided on the side wall of the heat sink.

[0011] As a further embodiment of this utility model: a cleaning component is provided on the outer side of the filter screen located on one side of the air intake. The cleaning component includes a sliding frame and a cleaning brush. The sliding frame is fixed to the top of the side wall of the filter screen. The cleaning brush is slidably engaged with the inner wall of the sliding frame. A threaded rod is rotatably connected to the inner wall of the sliding frame. The cleaning brush is threadedly engaged with the threaded rod.

[0012] As a further embodiment of this utility model: a motor is provided on the outer wall of one end of the sliding frame, the output shaft of the motor is connected to the threaded rod, and the cooling fan, temperature detector, motor and circulation pump are all electrically connected to the controller.

[0013] As a further improvement of this utility model: a receiving groove is provided on the inner wall of the bottom end of the air intake, and a fan wheel is rotatably connected to the inner wall of the receiving groove. A speed sensor is connected to one end of the rotating shaft of the fan wheel.

[0014] Compared with the prior art, this utility model provides a dry-type transformer temperature control device, which has the following beneficial effects:

[0015] 1. This utility model, by providing an air outlet, an air inlet, and a heat dissipation sleeve, can uniformly dissipate heat around the transformer, avoiding uneven heat dissipation that could cause localized heat loss and affect the transformer's performance.

[0016] 2. In this utility model, a cleaning component is provided. When dust adheres to the surface of the filter screen and affects the air intake, the motor drives the threaded rod to rotate, causing the cleaning brush to move back and forth along the sliding frame to sweep off the dust from the surface of the filter screen.

[0017] 3. This utility model, by providing a receiving groove, a fan wheel and a speed sensor, can detect changes in airflow through the air intake when the filter screen is clogged, and clean the filter screen in a timely manner.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a dry-type transformer temperature control device proposed in this utility model.

[0020] Figure 2 This is a schematic diagram of the internal structure of a dry-type transformer temperature control device proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the cleaning assembly of a dry-type transformer temperature control device proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the air inlet duct of a dry-type transformer temperature control device proposed in this utility model.

[0023] In the diagram: 1. Cabinet; 2. Transformer; 3. Air outlet; 4. Heat dissipation vent; 5. Cooling fan; 6. Air intake duct; 7. Filter screen; 8. Heat dissipation sleeve; 9. Water tank; 10. Heat dissipation fins; 11. Heat dissipation grid; 12. Temperature detector; 13. Cleaning assembly; 14. Receiving slot; 15. Fan wheel; 16. Sliding bracket; 17. Cleaning brush; 18. Threaded rod; 19. Motor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Example 1

[0027] A dry-type transformer temperature control device, such as Figures 1 to 3As shown, the system includes a cabinet 1, inside which a transformer 2 is installed. A cabinet door is hinged to one side of the cabinet 1. An air outlet 3, rectangular in shape, is located at the bottom of the cabinet 1, surrounding the transformer 2. Air inlets 6 are located on the top side walls of the cabinet 1, one end of which connects to the air outlet 3. A heat dissipation vent 4 is located at the top of the cabinet 1, with a cooling fan 5 installed on the inner wall of the vent 4. Filters 7 are installed on one side of both the heat dissipation vent 4 and the air inlets 6. A heat dissipation sleeve 8 is arranged in a ring around the transformer 2, with a temperature detector 12 located near the outer wall of the heat dissipation sleeve 8. A water tank 9 is located inside the bottom of the cabinet 1, with a circulation pump connected to the heat dissipation sleeve 8 at one end and a heat sink 10 connected to the other end of the water tank 9. The other end of the heat sink 10 is connected to the heat sink sleeve 8. The outer wall of the cabinet 1 is provided with heat dissipation grids 11 located on both sides of the heat sink 10. Another heat dissipation fan 5 is provided on the side wall of the heat sink 10. Cleaning components 13 are provided on the outer side of the filter screen 7 located on the side of the air intake duct 6. The cleaning components 13 include a sliding frame 16 and a cleaning brush 17. The sliding frame 16 is fixed to the top of the side wall of the filter screen 7. The cleaning brush 17 is slidably engaged with the inner wall of the sliding frame 16. A threaded rod 18 is rotatably connected to the inner wall of the sliding frame 16. The cleaning brush 17 is threadedly engaged with the threaded rod 18. A motor 19 is provided on the outer wall of one end of the sliding frame 16. The output shaft of the motor 19 is connected to the threaded rod 18. The heat dissipation fan 5, temperature detector 12, motor 19 and circulation pump are all electrically connected to the controller.

[0028] During the operation of transformer 2, cooling fan 5 starts to blow hot air from inside cabinet 1 out through heat dissipation vent 4. At the same time, external air enters cabinet 1 through air intake duct 6 and blows towards the vicinity of transformer 2 through air outlet 3. Since air outlet 3 is rectangular and located around transformer 2, the air is evenly distributed around transformer 2 to dissipate heat evenly and avoid uneven heat dissipation that could cause local overheating. Temperature detector 12 monitors the temperature of transformer 2. When transformer 2 is too hot and requires further heat dissipation, circulation pump starts, causing water in water tank 9 to circulate along heat dissipation sleeve 8 and heat dissipation fins 10 to absorb the heat emitted by transformer 2 and quickly cool it down. Filter screen 7 can cover heat dissipation vent 4 and air intake duct 6 to prevent debris from entering and to filter the air entering cabinet 1 through air intake duct 6, reducing dust entry. When dust adheres to the surface of filter screen 7 and affects air entry, motor 19 drives threaded rod 18 to rotate, causing cleaning brush 17 to move back and forth along sliding frame 16 to sweep off the dust from the surface of filter screen 7.

[0029] By providing an air outlet 3, an air inlet 6, and a heat dissipation sleeve 8, heat dissipation can be uniformly distributed around the transformer 2, avoiding uneven heat dissipation from causing localized problems in the transformer 2 and affecting its working performance.

[0030] With the cleaning component 13 in place, when dust adheres to the surface of the filter screen 7 and affects the air intake, the motor 19 drives the threaded rod 18 to rotate, causing the cleaning brush 17 to move back and forth along the sliding frame 16, sweeping off the dust from the surface of the filter screen 7.

[0031] Example 2

[0032] A dry-type transformer temperature control device, this embodiment is based on embodiment 1, with the following improvements, such as... Figure 4 As shown, the inner wall of the bottom end of the air intake duct 6 is provided with a receiving groove 14, and a fan wheel 15 is rotatably connected to the inner wall of the receiving groove 14. One end of the rotating shaft of the fan wheel 15 is connected to a speed sensor.

[0033] When air passes through the air intake duct 6, it will blow the fan wheel 15 to rotate. The speed sensor detects the speed of the fan wheel 15. When the dust on the filter screen 7 gradually increases and affects the air intake, the air flow rate in the air intake duct 6 will change, causing the speed of the fan wheel 15 to decrease. At this time, the speed sensor detects the decrease in the speed of the fan wheel 15 and transmits the signal to the controller. The controller drives the cleaning component 13 to start cleaning the filter screen 7.

[0034] By incorporating a receiving slot 14, a fan wheel 15, and a speed sensor, changes in airflow through the intake duct 6 can be detected when the filter 7 becomes clogged, allowing for timely cleaning of the filter 7.

[0035] Working principle: During the operation of transformer 2, cooling fan 5 starts, blowing hot air from inside cabinet 1 out through heat dissipation vent 4. Simultaneously, external air enters cabinet 1 through air inlet 6 and blows towards the vicinity of transformer 2 through air outlet 3. Since air outlet 3 is a rectangular ring located around transformer 2, the air is evenly distributed around transformer 2, providing uniform heat dissipation and preventing uneven heat dissipation that could cause localized overheating. Temperature detector 12 monitors the temperature of transformer 2. When transformer 2 reaches a high temperature and requires further cooling, circulation pump starts, causing water in water tank 9 to circulate along heat dissipation sleeve 8 and heat sink 10, absorbing the heat emitted by transformer 2 and rapidly cooling it. (Filtration...) The filter screen 7 can shield the heat dissipation vent 4 and the air intake duct 6 to prevent debris from entering, and filter the air entering the cabinet 1 through the air intake duct 6 to reduce dust entry. When dust adheres to the surface of the filter screen 7 and affects the air intake, the air passing through the air intake duct 6 will blow the fan wheel 15 to rotate. The speed sensor detects the speed of the fan wheel 15. When the dust on the filter screen 7 gradually increases and affects the air intake, the airflow speed in the air intake duct 6 will change, causing the speed of the fan wheel 15 to decrease. At this time, the speed sensor detects the decrease in the speed of the fan wheel 15 and transmits the signal to the controller. The controller controls the motor 19 to start, drives the threaded rod 18 to rotate, and causes the cleaning brush 17 to move back and forth along the sliding frame 16 to sweep off the dust on the surface of the filter screen 7.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dry-type transformer temperature control device, comprising a cabinet (1), characterized in that, The cabinet (1) is equipped with a transformer (2). The bottom of the cabinet (1) is provided with an air outlet (3). The air outlet (3) is rectangular and located around the transformer (2). The top side wall of the cabinet (1) is provided with an air inlet (6). One end of the air inlet (6) is connected to the air outlet (3). The top of the cabinet (1) is provided with a heat dissipation vent (4). The inner wall of the heat dissipation vent (4) is provided with a heat dissipation fan (5). The transformer (2) is surrounded by a heat dissipation sleeve (8).

2. The dry-type transformer temperature control device according to claim 1, characterized in that, A filter screen (7) is provided on one side of the heat dissipation port (4) and the air inlet (6), and a temperature detector (12) is provided on the outer wall of the heat dissipation sleeve (8) near the transformer (2).

3. The dry-type transformer temperature control device according to claim 2, characterized in that, A water tank (9) is provided inside the bottom of the cabinet (1). A circulation pump connected to the heat dissipation sleeve (8) is provided at one end of the water tank (9). A heat dissipation fin (10) is connected to the other end of the water tank (9). The other end of the heat dissipation fin (10) is connected to the heat dissipation sleeve (8).

4. The dry-type transformer temperature control device according to claim 3, characterized in that, The outer wall of the cabinet (1) is provided with heat dissipation grids (11) located on both sides of the heat sink (10), and another heat dissipation fan (5) is provided on the side wall of the heat sink (10).

5. A dry-type transformer temperature control device according to claim 2, characterized in that, A cleaning component (13) is provided on the outer side of the filter screen (7) located on one side of the air intake (6). The cleaning component (13) includes a sliding frame (16) and a cleaning brush (17). The sliding frame (16) is fixed to the top of the side wall of the filter screen (7). The cleaning brush (17) is slidably engaged with the inner wall of the sliding frame (16). A threaded rod (18) is rotatably connected to the inner wall of the sliding frame (16). The cleaning brush (17) is threadedly engaged with the threaded rod (18).

6. The dry-type transformer temperature control device according to claim 5, characterized in that, A motor (19) is provided on the outer wall of one end of the sliding frame (16). The output shaft of the motor (19) is connected to the threaded rod (18). The cooling fan (5), temperature detector (12), motor (19) and circulation pump are all electrically connected to the controller.

7. The dry-type transformer temperature control device according to claim 1, characterized in that, The air intake (6) has a receiving groove (14) on the inner wall at the bottom end. A fan wheel (15) is rotatably connected to the inner wall of the receiving groove (14). A speed sensor is connected to one end of the rotating shaft of the fan wheel (15).

Images