European-style box transformer substation with intelligent temperature regulation and control system

Abstract

The utility model provides a European-style box transformer substation with an intelligent temperature regulation and control system, which comprises a box body, a cabinet door and a ceiling, a mounting chamber for accommodating a transformer, a high-voltage cabinet and a low-voltage cabinet is formed in the box body, a top space is formed between the ceiling and the box body, a bottom space is formed at the bottom of the box body, and an air inlet mechanism is arranged on the outer wall of the bottom of the box body. The side wall of the ceiling is provided with an exhaust mechanism, the bottom of the mounting chamber is provided with an air conditioning mechanism which is composed of a main fan and a refrigerating device, the bottom of the mounting chamber is provided with a plurality of bottom circulating fans communicated with the bottom space, and the top of the mounting chamber is provided with a plurality of top exhaust fans communicated with the top space. A plurality of external temperature sensors are arranged on an air inlet path of the air inlet mechanism, a plurality of internal temperature sensors are arranged in the installation room, and through intelligent temperature monitoring and regulation, a multi-stage heat dissipation mechanism, an energy-saving design, an optimized structural layout and a convenient maintenance mode, the heat dissipation efficiency of the box transformer substation is remarkably improved, and the operation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a European-style box transformer with an intelligent temperature control system. Background Art

[0002] European box transformers usually have independent unit structures, including transformer room, high-voltage switch room and low-voltage switch room. These units are connected by wires to form a complete power supply system. Its characteristics are that transformers and switch cabinets are installed inside, which can not only avoid temperature rise caused by direct sunlight, but also prevent external collisions, impacts and electric shock accidents. However, a major disadvantage of this enclosed structure is its poor heat dissipation effect.

[0003] In the prior art, a common method to solve the heat dissipation problem of European box transformers is to use a fan to force the air flow to circulate inside the box to remove the heat, but this solution does not take into account the external air temperature introduced into the box; if air conditioning equipment is used for cooling, it is easy to waste electricity due to the frequent startup and shutdown of the air conditioning equipment.

[0004] In view of this, the inventor specially designed a European-style box transformer with an intelligent temperature control system, and this case was thus generated. Utility Model Content

[0005] In order to solve the above problems, the technical solution of the utility model is as follows:

[0006] A European-style box transformer with an intelligent temperature control system comprises a box body, a cabinet door and a ceiling, wherein an installation room for accommodating a transformer, a high-voltage cabinet and a low-voltage cabinet is formed in the box body, a top space independent of the installation room is formed between the ceiling and the box body, a bottom space is formed at the bottom of the box body, an air inlet mechanism connected to the bottom space is provided on the outer wall of the bottom of the box body, an exhaust mechanism connected to the top space is provided on the side wall of the ceiling, an air conditioning mechanism is provided at the bottom of the installation room, the air conditioning mechanism consists of a main fan and a refrigeration device, a plurality of bottom circulation fans connected to the bottom space are provided at the bottom of the installation room, a plurality of top exhaust fans connected to the top space are provided at the top of the installation room, a plurality of external temperature sensors are provided on the air inlet path of the air inlet mechanism, and a plurality of internal temperature sensors are provided in the installation room.

[0007] Preferably, a control module is further included, and the plurality of internal temperature sensors and external temperature sensors are electrically connected to the input end of the control module, and the bottom circulation fan, main fan, refrigeration device and top exhaust fan are electrically connected to the output end of the control module.

[0008] Preferably, the control module is an MCU microprocessor or an STM32 circuit control board.

[0009] Preferably, the bottom circulation fan includes a forward fan whose air outlet direction is from the bottom space toward the installation room and a reverse fan whose air outlet direction is from the installation room toward the bottom space.

[0010] Preferably, the forward fan is arranged near the middle of the installation room, and the reverse fan is arranged outside the forward fan.

[0011] Preferably, the forward fans and the reverse fans are respectively distributed in a circular shape around the same center point.

[0012] Preferably, the top exhaust fan is a unidirectional fan.

[0013] Preferably, the air inlet mechanism includes a frame, a filter and a filter element. The frame is cylindrical and penetrates along its axial direction to form an air inlet channel. The filter is arranged at the inlet end of the air inlet channel. The filter element is filled and arranged in the air inlet channel. The exhaust mechanism is a one-way air outlet valve.

[0014] Preferably, the filter element is a filter cotton core.

[0015] Preferably, the frame body has an annular mounting edge formed on the periphery thereof, the bottom of the box body has a mounting hole adapted to the periphery of the frame body, the frame body is inserted into the mounting hole and the mounting edge is fixed to the inside of the box body by bolts.

[0016] The beneficial effects of the utility model are as follows:

[0017] The utility model integrates an intelligent temperature control system, which monitors the temperature inside and outside the box in real time through built-in internal temperature sensors and external temperature sensors, and realizes accurate monitoring and intelligent adjustment of the internal temperature of the box transformer. This design can automatically adjust the cooling strategy according to the changes in ambient temperature and the working status of the equipment, effectively avoiding the energy waste or insufficient heat dissipation caused by ignoring the external temperature or over-reliance on a single cooling method (such as fans, air conditioners) in traditional methods.

[0018] In addition, the utility model adopts multi-stage heat dissipation components such as bottom circulation fan, main fan, refrigeration device and top exhaust fan to form effective heat exchange and airflow circulation. The bottom circulation fan (forward fan and reverse fan) promotes heat exchange between the bottom space and the installation room, while optimizing the airflow distribution in the box; the air conditioning mechanism (main fan and refrigeration device) directly reduces the temperature inside the installation room; the top exhaust fan discharges the hot air to the top space, and then discharges it out of the box through the exhaust mechanism. This multi-stage heat dissipation mechanism ensures the effective dissipation of heat and improves the heat dissipation efficiency.

[0019] In particular, each cooling device is intelligently scheduled through the control module (MCU microprocessor or STM32 circuit control board), and the bottom circulation fan, main fan, refrigeration device and top exhaust fan are started or shut down in time according to the data feedback from the internal temperature sensor and the external temperature sensor, thus avoiding the waste of electricity caused by frequent start and stop of traditional air-conditioning equipment and achieving energy-saving operation.

[0020] In particular, the box is divided into an installation room, a top space, and a bottom space, forming a reasonable natural convection channel for hot air to rise and cold air to sink. The design of the bottom air intake mechanism and the top air exhaust mechanism fully utilizes the principle of hot air rising, which helps to improve the heat dissipation efficiency.

[0021] In addition, the air inlet mechanism adopts filter screen and filter element (such as filter cotton core), which can not only ensure air circulation, but also effectively prevent dust and impurities from entering the box, thus protecting the internal electrical equipment.

[0022] In addition, the frame design of the air inlet mechanism is easy to disassemble and assemble. The mounting edge on the peripheral side cooperates with the mounting hole at the bottom of the box and is fixed by bolts, making the replacement and cleaning of the filter and filter element simple and easy, which is beneficial to daily maintenance and extension of equipment life.

[0023] To sum up, the European-style box transformer with intelligent temperature control system provided by the utility model significantly improves the heat dissipation efficiency of the box transformer, reduces operating costs, and enhances the stability and service life of the equipment through intelligent temperature monitoring and control, multi-level heat dissipation mechanism, energy-saving design, optimized structural layout and convenient maintenance method. It is of great value for improving the operating environment of power equipment and improving the overall efficiency of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0025] in:

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 It is a front view of the utility model;

[0028] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;

[0029] Figure 4 This is a block diagram of the connection principle of the utility model;

[0030] Figure 5It is a partial cross-sectional structural schematic diagram of the air inlet mechanism in the utility model.

[0031] Description of labels:

[0032] 10. Box body; 11. Installation room; 12. Bottom space; 13. External temperature sensor; 14. Internal temperature sensor; 20. Cabinet door; 30. Ceiling; 31. Top space; 40. Air inlet mechanism; 41. Frame; 42. Filter; 43. Filter element; 44. Air inlet channel; 45. Installation edge; 50. Exhaust mechanism; 60. Air conditioning mechanism; 61. Main fan; 62. Refrigeration device; 70. Bottom circulation fan; 71. Forward fan; 72. Reverse fan; 80. Top exhaust fan; 90. Control module. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] See also Figures 1 to 5 , is a European-style box transformer with an intelligent temperature control system as the best embodiment of the utility model, comprising a rectangular box body 10, a cabinet door 20 installed on the box body 10 and a ceiling 30 fixed on the top of the box body 10, an installation room 11 for accommodating a transformer, a high-voltage cabinet and a low-voltage cabinet is formed in the box body 10, the cabinet door 20 is opened to connect to the installation room 11, a top space 31 independent of the installation room 11 is formed between the ceiling 30 and the box body 10, a bottom space 12 independent of the installation room 11 is formed at the bottom of the box body 10, and a bottom outer wall of the bottom of the box body 10 is installed to connect to the bottom space 12 An air inlet mechanism 40 and an exhaust mechanism 50 connected to the top space 31 are arranged on the side wall of the ceiling 30; an air conditioning mechanism 60 is arranged at the bottom of the installation room 11; the air conditioning mechanism 60 is composed of a main fan 61 and a refrigeration device 62; the refrigeration device 62 is an air conditioner and is installed on the air inlet path of the main fan 61; a plurality of bottom circulation fans 70 connected to the bottom space 12 are arranged at the bottom of the installation room 11; a plurality of top exhaust fans 80 connected to the top space 31 are arranged at the top of the installation room 11; a plurality of external temperature sensors 13 are arranged on the air inlet path of the air inlet mechanism 40; and a plurality of internal temperature sensors 14 are arranged in the installation room 11.

[0035] Preferably, Figure 4 As shown, it also includes a control module 90, a plurality of internal temperature sensors 14 and an external temperature sensor 13 are electrically connected to the input end of the control module 90, and the bottom circulation fan 70, the main fan 61, the refrigeration device 62 and the top exhaust fan 80 are electrically connected to the output end of the control module 90.

[0036] In this embodiment, the control module 90 is an MCU microprocessor or an STM32 circuit control board. The control module 90 (MCU microprocessor or STM32 circuit control board) performs intelligent scheduling of each heat dissipation device, and starts or shuts down the bottom circulation fan 70, the main fan 61, the refrigeration device 62 and the top exhaust fan 80 in a timely manner according to the data feedback from the internal temperature sensor 14 and the external temperature sensor 13, thereby avoiding the waste of electricity caused by frequent start and stop of traditional air-conditioning equipment and achieving energy-saving operation.

[0037] The control logic of this embodiment is:

[0038] The control module 90 is provided with an inlet air temperature threshold t1 and a circuit operation threshold t2 (t2>t1, i.e., the circuit operation threshold is greater than the set inlet air temperature).

[0039] First, when the internal temperature sensor 14 detects that the temperature inside the box 10 is not higher than the circuit operation threshold t2, all components do not work and rely on the box 10 to dissipate heat naturally;

[0040] When the internal temperature sensor 14 detects that the temperature inside the box 10 is greater than the circuit working threshold t2, and the external temperature sensor 13 detects that the temperature of the air entering the bottom space 12 is not higher than t1, no start signal is sent to the refrigeration device 62. At this time, the refrigeration device 62 does not work, and relies on the main fan 61, the bottom circulation fan 70 and the exhaust fan to introduce the external airflow with a temperature lower than t1 into the box 10 to form an airflow circulation, and use this part of the airflow to take away the heat generated by the circuit in the box 10, so as to maintain a low working temperature of the box 10;

[0041] When the internal temperature sensor 14 detects that the temperature inside the box 10 is greater than the circuit working threshold value t2, and the external temperature sensor 13 detects that the temperature of the air entering the bottom space 12 is greater than t1, the control module 90 sends a start signal to the refrigeration device 62. At this time, the refrigeration device 62 works, and the temperature of the air entering the bottom space 12 is further reduced before inputting into the box 10. At this time, the top exhaust fan 80 is turned off, and the bottom circulation fan 70 is turned on. The airflow in the installation room 11 and the bottom space 12 is continuously cooled by the refrigeration device 62, so that the temperature carried by the circulating airflow is fully utilized, avoiding direct discharge of this part of the low-temperature airflow and causing waste. When the temperature is lower than t2 again, the refrigeration device 62 stops working;

[0042] Preferably, Figure 3As shown, the bottom circulation fan 70 includes a forward fan 71 whose air outlet direction is from the bottom space 12 to the installation room 11, and a reverse fan 72 whose air outlet direction is from the installation room 11 to the bottom space 12. In this embodiment, the forward fan 71 is arranged at a position close to the middle of the installation room 11, and the reverse fan 72 is arranged on the outside of the forward fan 71, and the forward fan 71 and the reverse fan 72 are respectively distributed in a circle along the same center point (not shown in the figure). Therefore, by designing the distribution of the forward fan 71 and the reverse fan 72, the air circulation effect inside the box body 10 can be further enhanced, so that the installation room 11 inside the box body 10 forms a circulating airflow path with middle air outlet and peripheral return air.

[0043] Preferably, Figure 3 As shown, the top exhaust fan 80 is a one-way fan, thereby preventing the top space 31 from introducing external airflow.

[0044] Preferably, Figure 5 As shown, the air inlet mechanism 40 includes a frame 41, a filter 42 and a filter element 43. The frame 41 is cylindrical and penetrates along its axial direction to form an air inlet channel 44. The filter 42 is arranged at the inlet end of the air inlet channel 44. The filter element 43 is filled and arranged in the air inlet channel 44. The exhaust mechanism 50 is a one-way air outlet valve, and the filter element 43 is a filter cotton core. Therefore, the air inlet mechanism 40 adopts the filter 42 and the filter element 43 (such as a filter cotton core), which can not only ensure air circulation, but also effectively prevent dust and impurities from entering the box body 10, thereby protecting the internal electrical equipment.

[0045] Preferably, Figure 5 As shown, a ring-shaped mounting edge 45 is formed on the outer side of the frame 41, and a mounting hole (not shown in the figure) adapted to the outer side of the frame 41 is formed at the bottom of the box 10. The frame 41 is inserted into the mounting hole and the mounting edge 45 is fixed to the interior of the box 10 by bolts. The frame 41 of the air inlet mechanism 40 is designed to be easy to disassemble and assemble, and the mounting edge 45 on the outer side cooperates with the mounting hole at the bottom of the box 10 and is fixed by bolts, so that the replacement and cleaning of the filter 42 and the filter element 43 are simple and easy, which is beneficial to daily maintenance and extension of equipment life.

[0046] The beneficial effects of the utility model are as follows:

[0047] The utility model integrates an intelligent temperature control system, which monitors the temperature inside and outside the box 10 in real time through the built-in internal temperature sensor 14 and the external temperature sensor 13, and realizes accurate monitoring and intelligent adjustment of the internal temperature of the box transformer. This design can automatically adjust the cooling strategy according to the ambient temperature changes and the working status of the equipment, effectively avoiding the energy waste or insufficient heat dissipation caused by ignoring the external temperature or over-reliance on a single cooling method (such as fans, air conditioners) in traditional methods.

[0048] In addition, the utility model adopts multi-stage heat dissipation components such as the bottom circulation fan 70, the main fan 61, the refrigeration device 62 and the top exhaust fan 80 to form an effective heat exchange and airflow circulation. The bottom circulation fan 70 (forward fan 71 and reverse fan 72) promotes the heat exchange between the bottom space 12 and the installation room 11, and optimizes the airflow distribution in the box 10; the air conditioning mechanism 60 (main fan 61 and refrigeration device 62) directly reduces the internal temperature of the installation room 11; the top exhaust fan 80 discharges the hot air to the top space 31, and then discharges it outside the box 10 through the exhaust mechanism 50. This multi-stage heat dissipation mechanism ensures the effective dissipation of heat and improves the heat dissipation efficiency.

[0049] In particular, the interior of the box 10 is divided into an installation room 11, a top space 31 and a bottom space 12, forming a reasonable natural convection channel for hot air to rise and cold air to sink. The design of the bottom air inlet mechanism 40 and the top air exhaust mechanism 50 fully utilizes the principle of hot air rising, which helps to improve the heat dissipation efficiency.

[0050] In summary, the European-style box transformer with an intelligent temperature control system provided by the utility model significantly improves the heat dissipation efficiency of the box transformer, reduces operating costs, and enhances the stability and service life of the equipment through intelligent temperature monitoring and control, multi-level heat dissipation mechanism, energy-saving design, optimized structural layout and convenient maintenance methods. It is of great value for improving the operating environment of power equipment and improving the overall efficiency of the power system.

[0051] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A European-style box transformer with an intelligent temperature control system, comprising a box body (10), a cabinet door (20) and a ceiling (30), characterized in that: An installation room (11) for accommodating a transformer, a high-voltage cabinet and a low-voltage cabinet is formed in the box body (10); a top space (31) independent of the installation room (11) is formed between the ceiling (30) and the box body (10); a bottom space (12) is formed at the bottom of the box body (10); an air inlet mechanism (40) connected to the bottom space (12) is provided on the outer wall of the bottom of the box body (10); an air exhaust mechanism (50) connected to the top space (31) is provided on the side wall of the ceiling (30); and the bottom of the installation room (11) is provided with a plurality of air inlets (40) connected to the bottom space (12). An air conditioning mechanism (60) is provided, the air conditioning mechanism (60) being composed of a main fan (61) and a refrigeration device (62); a plurality of bottom circulation fans (70) communicating with a bottom space (12) are provided at the bottom of the installation room (11); a plurality of top exhaust fans (80) communicating with a top space (31) are provided at the top of the installation room (11); a plurality of external temperature sensors (13) are provided on the air inlet path of the air inlet mechanism (40); and a plurality of internal temperature sensors (14) are provided in the installation room (11).

2. The European-style box-type transformer with intelligent temperature control system according to claim 1 is characterized in that: It also includes a control module (90), wherein the plurality of internal temperature sensors (14) and external temperature sensors (13) are all electrically connected to the input end of the control module (90), and the bottom circulation fan (70), the main fan (61), the refrigeration device (62) and the top exhaust fan (80) are all electrically connected to the output end of the control module (90).

3. The European-style box-type transformer with intelligent temperature control system according to claim 2 is characterized in that: The control module (90) is an MCU microprocessor or an STM32 circuit control board.

4. The European-style box-type transformer with intelligent temperature control system according to claim 1 is characterized in that: The bottom circulation fan (70) comprises a forward fan (71) whose air outlet direction is from the bottom space (12) toward the installation room (11) and a reverse fan (72) whose air outlet direction is from the installation room (11) toward the bottom space (12).

5. The European-style box-type transformer with intelligent temperature control system according to claim 4 is characterized in that: The forward fan (71) is arranged at a position close to the middle of the installation room (11), and the reverse fan (72) is arranged outside the forward fan (71).

6. The European-style box-type transformer with intelligent temperature control system according to claim 5 is characterized in that: The forward fan (71) and the reverse fan (72) are respectively distributed in a circular shape along the same center point.

7. The European-style box-type transformer with intelligent temperature control system according to claim 1 is characterized in that: The top exhaust fan (80) is a one-way fan.

8. The European-style box-type transformer with intelligent temperature control system according to claim 1 is characterized in that: The air inlet mechanism (40) comprises a frame (41), a filter (42) and a filter element (43); the frame (41) is cylindrical and penetrates along its axial direction to form an air inlet channel (44); the filter (42) is arranged at the inlet end of the air inlet channel (44); the filter element (43) is filled and arranged in the air inlet channel (44); and the exhaust mechanism (50) is a one-way air outlet valve.

9. The European-style box-type transformer with intelligent temperature control system according to claim 8 is characterized in that: The filter element (43) is a filter cotton core.

10. The European-style box-type transformer with intelligent temperature control system according to claim 8, characterized in that: The frame (41) is extended to form a ring-shaped mounting edge (45) on the periphery, and the bottom of the box (10) is formed with a mounting hole adapted to the periphery of the frame (41). The frame (41) is inserted into the mounting hole and the mounting edge (45) is fixed to the inside of the box (10) by bolt connection.

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