Box-type transformer with heat dissipation structure

Abstract

The invention provides a box-type transformer with a heat dissipation structure, and relates to the technical field of transformers. The box-type transformer with the heat dissipation structure comprises a box body, the box body is provided with at least one air inlet and at least one first fan, the first fan is correspondingly arranged in the air inlet, and the first fan is used for extracting air outside the box body; the transformer body is arranged in the box body; the heat dissipation assembly is arranged on the peripheral side of the transformer body, the heat dissipation assembly communicates with the air inlet, and the heat dissipation assembly is used for blowing the air extracted by the first fan to the transformer body, so that the air obtains heat generated by the transformer body; the box body is further provided with at least one air outlet and at least one second fan, the second fan is correspondingly arranged in the air outlet, and the second fan is used for pumping air obtained with heat out of the box body. According to the box-type transformer with the heat dissipation structure, the air flowing speed and the heat exchange efficiency can be improved, and therefore the heat dissipation performance is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and in particular to a box-type transformer with a heat dissipation structure. Background Art

[0002] A box-type transformer is a device that converts AC voltage and AC current using the principle of electromagnetic induction. A box-type transformer consists of a housing and the transformer itself, which is housed within it. During operation, a significant amount of heat accumulates within the housing. To ensure the proper functioning of the transformer, this heat must be dissipated.

[0003] In the related art, a box-type transformer uses transformer oil to absorb heat inside the box and then transfers the absorbed heat to the heat sink, which exchanges heat with the surrounding air through the surface of the heat sink to dissipate the heat inside the box.

[0004] However, in the related art, the heat dissipation efficiency of natural cooling using heat sinks is low. Summary of the Invention

[0005] The present invention provides a box-type transformer with a heat dissipation structure, which is used to solve the problem of low heat dissipation efficiency when using heat sinks for natural cooling.

[0006] The present invention provides a box-type transformer with a heat dissipation structure, comprising:

[0007] The box body has at least one air inlet and at least one first fan, the first fan is correspondingly arranged in the air inlet, and the first fan is used to extract air from the outside of the box body;

[0008] The transformer body is arranged inside the box;

[0009] A heat dissipation component is provided on the peripheral side of the transformer body and is in communication with the air inlet. The heat dissipation component is used to blow the air extracted by the first fan toward the transformer body so that the air absorbs the heat generated by the transformer body;

[0010] The box body also has at least one air outlet and at least one second fan. The second fan is correspondingly arranged in the air outlet, and the second fan is used to draw the air after obtaining heat to the outside of the box body.

[0011] In one possible implementation, the heat dissipation component includes:

[0012] a first blowing member and a second blowing member, wherein the first blowing member and the second blowing member are respectively arranged on two opposite sides of the transformer body;

[0013] The ventilation pipe is connected with the first blowing member and the second blowing member, and is also connected with the air inlet, so that the first blowing member and the second blowing member blow the air extracted by the first fan toward the transformer body.

[0014] In a possible implementation, the first blowing member and the second blowing member are both flat or arc-shaped.

[0015] In a possible implementation manner, the air outlet is located between the first blowing member and the second blowing member.

[0016] In a possible implementation, the air outlet is provided on the side wall of the box body, and the air outlet is located at the top of the side wall.

[0017] In one possible implementation, the heat dissipation assembly further includes:

[0018] At least one air collecting pipe, the air collecting pipe being connected to the air inlet;

[0019] The air collecting member is connected between the ventilation pipe and the air collecting pipe, and is used to collect the air extracted by the first fan.

[0020] In a possible embodiment, the air collecting member is flat or arc-shaped, and has at least two air collecting ports, which are evenly distributed on the air collecting member;

[0021] There are at least two air inlets, which are evenly distributed on the box body;

[0022] At least two air collecting pipes are provided, and the air collecting pipes are correspondingly connected to the air inlet and the air collecting outlet.

[0023] In a possible implementation, the box-type transformer with a heat dissipation structure further includes:

[0024] Temperature sensor, the temperature sensor is used to detect the temperature inside the box;

[0025] The controller is respectively connected to the temperature sensor, the first fan and the second fan for controlling the rotation of the first fan and the second fan when the temperature meets a preset condition.

[0026] In a possible implementation, the box-type transformer with a heat dissipation structure further includes a frequency converter, and the preset condition includes at least two sub-conditions;

[0027] The inverter is communicated with the controller, the first fan and the second fan respectively. The controller is used to control the inverter to operate when the temperature meets one of the sub-conditions, so that the inverter controls the first fan and the second fan to rotate at a preset speed corresponding to the sub-condition.

[0028] In a possible implementation, a filter element is further provided in at least one of the air inlet and the air outlet, and the filter element is used to filter the air flowing through the filter element.

[0029] The box-type transformer with a heat dissipation structure provided by the present invention is provided with a box body and a transformer body, the transformer body is provided inside the box body, and the box body can form protection for the transformer body; by providing a heat dissipation component, the heat dissipation component is provided on the peripheral side of the transformer body, and the heat dissipation component can dissipate heat from the transformer body on the peripheral side of the transformer body; by providing at least one air inlet and at least one first fan, the first fan is correspondingly provided in the air inlet, the first fan can draw air from the outside of the box, and by connecting the heat dissipation component with the air inlet, the heat dissipation component can blow the air drawn by the first fan toward the transformer body, so that the air obtains the heat generated by the transformer body, thereby dissipating the heat of the transformer body; by providing at least one air outlet and at least one second fan, the second fan is correspondingly provided in the air outlet, and the second fan can draw the air after obtaining the heat to the outside of the box, so as to assist the heat dissipation component in dissipating the heat from the transformer body.

[0030] In addition, while the first fan draws air from outside the box into the inside of the box, the second fan draws air from inside the box to the outside of the box, which can effectively increase the air flow speed and heat exchange efficiency, thereby improving the heat dissipation performance of the heat dissipation component. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0032] Figure 1 A schematic diagram of the internal structure of a box-type transformer with a heat dissipation structure provided by an embodiment of the present invention;

[0033] Figure 2 A front view of a box-type transformer with a heat dissipation structure provided by an embodiment of the present invention;

[0034] Figure 3 A side view of a box-type transformer with a heat dissipation structure provided in an embodiment of the present invention.

[0035] Description of reference numerals:

[0036] 100 - cabinet; 110 - air inlet; 120 - first fan; 130 - air outlet; 140 - second fan; 150 - mounting slot;

[0037] 200- transformer body;

[0038] 300-heat dissipation assembly; 310-first blowing member; 320-second blowing member; 330-blowing port; 340-ventilation pipe; 350-air collecting member;

[0039] 400-temperature sensor;

[0040] 500-Inverter;

[0041] 600-Filter element.

[0042] To facilitate understanding of the solutions of the present invention, the spline curves and arrows used in the drawings are explained here: the components indicated by the spline curves without arrows are solid components, that is, components with solid structures; the components indicated by the spline curves with arrows are virtual components, that is, components without solid structures.

[0043] The above drawings illustrate specific embodiments of the present invention, which will be described in more detail below. These drawings and the accompanying description are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0044] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0045] It should be noted that, in this document, relational terms such as first and second are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the orientation or position relationship (if any) indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. Moreover, the terms "include", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. If there is no conflict, the embodiments of the present invention and the various features therein may be combined with each other and are all within the protection scope of the present invention.

[0046] A box-type transformer is a device that converts AC voltage and AC current using the principle of electromagnetic induction. A box-type transformer consists of a housing and the transformer itself, which is housed within it. During operation, a significant amount of heat accumulates within the housing. To ensure the proper functioning of the transformer, this heat must be dissipated.

[0047] In the related art, a box-type transformer uses transformer oil to absorb heat inside the box and then transfers the absorbed heat to the heat sink, which exchanges heat with the surrounding air through the surface of the heat sink to dissipate the heat inside the box.

[0048] However, in the related art, the heat dissipation efficiency of natural cooling using heat sinks is low, especially in high-load electricity consumption scenarios (such as wind power plants). A lot of heat accumulates in the box of the box-type transformer, and relying on transformer oil and heat sinks for cooling is far from enough, which will lead to a reduced service life of the transformer body.

[0049] For the above technical issues, please refer to Figures 1 to 3An embodiment of the present invention provides a box-type transformer with a heat dissipation structure, comprising: a box body 100, the box body 100 having at least one air inlet 110 and at least one first fan 120, the first fan 120 being correspondingly arranged in the air inlet 110, and the first fan 120 being used to extract air from the outside of the box body 100; a transformer body 200, the transformer body 200 being arranged inside the box body 100; a heat dissipation component 300, the heat dissipation component 300 being arranged on the peripheral side of the transformer body 200, the heat dissipation component 300 being connected to the air inlet 110, and the heat dissipation component 300 being used to blow the air extracted by the first fan 120 toward the transformer body 200, so that the air absorbs the heat generated by the transformer body 200; the box body 100 also having at least one air outlet 130 and at least one second fan 140, the second fan 140 being correspondingly arranged in the air outlet 130, and the second fan 140 being used to extract the air after obtaining the heat to the outside of the box body 100.

[0050] The box-type transformer with a heat dissipation structure provided by the present invention is provided with a box body 100 and a transformer body 200. The transformer body 200 is arranged inside the box body 100. The box body 100 can protect the transformer body 200 and is not easily corroded by the natural environment.

[0051] By providing the heat dissipation assembly 300 , the heat dissipation assembly 300 is provided on the peripheral side of the transformer body 200 , and the heat dissipation assembly 300 can dissipate heat from the transformer body 200 on the peripheral side of the transformer body 200 .

[0052] By providing at least one air inlet 110 and at least one first fan 120, the first fan 120 is correspondingly arranged in the air inlet 110, and the first fan 120 can draw air from the outside of the box 100. Moreover, by connecting the heat dissipation component 300 with the air inlet 110, the heat dissipation component 300 can blow the air drawn by the first fan 120 toward the transformer body 200, so that the air obtains the heat generated by the transformer body 200, thereby dissipating heat from the transformer body 200.

[0053] By setting at least one air outlet 130 and at least one second fan 140, the second fan 140 is correspondingly set in the air outlet 130. The second fan 140 can draw the air after obtaining heat to the outside of the box 100 to assist the heat dissipation component 300 in dissipating heat from the transformer body 200.

[0054] In addition, while the first fan 120 draws air from the outside of the box 100 into the inside of the box 100, the second fan 140 draws air from the inside of the box 100 to the outside of the box 100, which can effectively increase the air flow speed and heat exchange efficiency, thereby improving the heat dissipation performance of the heat dissipation component 300.

[0055] In some embodiments, see Figure 1 The bottom of the box body 100 has a mounting groove 150 , and the transformer body 200 is arranged in the mounting groove 150 to achieve the installation of the transformer body 200 .

[0056] It should be noted that the present invention does not limit the specific installation method of the transformer body 200, as long as the transformer body 200 can be stably installed. For example, the transformer body 200 and the box body 100 are snap-fitted, welded, screwed, or riveted.

[0057] In other embodiments, see Figures 1 to 3 The heat dissipation assembly 300 includes: a first blowing member 310 and a second blowing member 320, which are respectively arranged on opposite sides of the transformer body 200; a ventilation pipe 340, which connects the first blowing member 310 and the second blowing member 320, and the ventilation pipe 340 is also connected to the air inlet 110, so that the first blowing member 310 and the second blowing member 320 blow the air extracted by the first fan 120 toward the transformer body 200.

[0058] By providing a ventilation duct 340, the ventilation duct 340 connects the first blowing member 310 and the second blowing member 320, and the ventilation duct 340 is connected to the air inlet 110, so that the cooler air extracted by the first fan 120 can be supplied to the first blowing member 310 and the second blowing member 320 at the same time; by arranging the first blowing member 310 and the second blowing member 320 on opposite sides of the transformer body 200, respectively, cooler air can be blown toward the transformer body 200 on opposite sides of the transformer body 200. After the cooler air contacts the transformer body 200, it can obtain the heat generated by the transformer body 200, and the cooler air becomes hotter air, thereby achieving heat dissipation and cooling of the transformer body 200.

[0059] Specifically, a plurality of blowing ports 330 are evenly arranged on the first blowing member 310 and the second blowing member 320, and the blowing ports 330 are arranged toward the transformer body 200. The air in the first blowing member 310 and the second blowing member 320 can be blown toward the transformer body 200 through the blowing ports 330 to achieve heat dissipation of the transformer body 200.

[0060] Further, see Figure 1 The ventilation pipe 340 is arranged at the bottom of the box body 100 and around the bottom of the transformer body 200. One end of the first blowing member 310 and one end of the second blowing member 320 are both connected to the ventilation pipe 340. The other end of the first blowing member 310 and the other end of the second blowing member 320 extend along the height direction of the transformer body 200, so that the first blowing member 310 and the second blowing member 320 blow cooler air from bottom to top.

[0061] During the operation of the transformer body 200, air convection occurs within the housing 100. Some of the heat generated by the transformer body 200 forms hotter air, which gradually rises to the top of the housing 100. If the first and second blowing members 310 and 320 blow cooler air from top to bottom, the cooler air will first exchange heat with the hotter air before reaching the transformer body 200. This will cause the temperature of the cooler air to rise, resulting in lower heat exchange efficiency between the heated cooler air and the transformer body 200 when they come into contact. Therefore, the first and second blowing members 310 and 320 blowing cooler air from bottom to top have higher heat dissipation efficiency.

[0062] In some specific embodiments, the first blowing member 310 and the second blowing member 320 are both pipes, and a blowing port 330 is opened on the pipe.

[0063] In this embodiment, since pipes are a mature technology, the first blowing member 310 and the second blowing member 320 are pipes, so that the overall heat dissipation structure of the transformer body 200 is relatively simple and the manufacturing cost is low.

[0064] In some other specific embodiments, the first blowing member 310 and the second blowing member 320 are both flat or arc-shaped.

[0065] In this embodiment, the first blowing member 310 and the second blowing member 320 are arranged around the transformer body 200, and the first blowing member 310 and the second blowing member 320 are both flat or arc-shaped, so that the projection area of ​​the first blowing member 310 and the second blowing member 320 on the transformer body 200 is larger, which also makes the blowing area of ​​the first blowing member 310 and the second blowing member 320 larger, and thus makes the blowing volume of the first blowing member 310 and the second blowing member 320 larger, and the first blowing member 310 and the second blowing member 320 have a better heat dissipation effect on the transformer body 200.

[0066] Specifically, flat or arc-shaped cavities are correspondingly provided inside the first blowing member 310 and the second blowing member 320, and the cavities are respectively connected to the ventilation pipe 340 and the blowing port 330. The air extracted by the first fan 120 is blown toward the transformer body 200 through the ventilation pipe 340, the cavity and the blowing port 330 in sequence.

[0067] In the present invention, the air outlet 130 is located between the first blowing member 310 and the second blowing member 320 .

[0068] Because the first blowing member 310 and the second blowing member 320 are respectively arranged on opposite sides of the transformer body 200, the air that exchanges heat with the transformer body 200 and obtains heat will flow out from between the first blowing member 310 and the second blowing member 320. The air outlet 130 is set between the first blowing member 310 and the second blowing member 320. After the air blown toward the transformer body 200 obtains the heat generated by the transformer body 200, it can quickly go out from the air outlet 130, thereby increasing the air flow speed inside the box 100, and further improving the heat dissipation effect of the transformer body 200.

[0069] Further, see Figure 3 The air outlet 130 is provided on the side wall of the box body 100 , and the air outlet 130 is located at the top of the side wall.

[0070] During operation of the transformer body 200, air convection occurs within the housing 100. Heat generated by the transformer body 200 forms relatively hot air, which gradually rises to the top of the housing 100. Therefore, by disposing the air outlet 130 on the side wall of the housing 100 and at the top of the side wall, the relatively hot air can be discharged from the air outlet 130 in a timely manner and will not accumulate at the top of the housing 100.

[0071] In some embodiments, see Figure 1 The heat dissipation assembly 300 also includes: at least one air collecting pipe (not shown), which is connected to the air inlet 110; an air collecting member 350, which is connected between the ventilation pipe 340 and the air collecting pipe, and is used to collect air extracted by the first fan 120.

[0072] Specifically, one end of the air collecting member 350 is connected to the ventilation pipe 340 at the bottom of the box 100 , and the other end of the air collecting member 350 extends along the height direction of the transformer body 200 , and the other end of the air collecting member 350 is located on one side of the air inlet 110 .

[0073] In this embodiment, since the internal space of the box body 100 is relatively small, the ventilation pipe 340 is not easy to be directly connected to the air inlet 110. Therefore, the air collecting piece 350 is arranged from bottom to top and can be arranged in a relatively narrow space, and the other end of the air collecting piece 350 is located on one side of the air inlet 110, which facilitates the connection between the air inlet 110 and the air collecting piece 350.

[0074] In some specific embodiments, the air collecting piece 350 is flat or arc-shaped, and has at least two air collecting ports (not shown in the figure), which are evenly distributed on the air collecting piece 350; at least two air inlets 110 are provided, and the air inlets 110 are evenly distributed on the box body 100; at least two air collecting pipes are provided, and the air collecting pipes connect the air inlets 110 and the air collecting ports accordingly.

[0075] In this embodiment, at least two air inlets 110 are provided, and the number of air collecting pipes matches the air inlets 110. The air extracted by the first fan 120 in each air inlet 110 enters the air collecting piece 350. There is more air in the air collecting piece 350, and the air blown out by the first blowing piece 310 and the second blowing piece 320 is also relatively large, so the heat dissipation effect of the transformer body 200 is better.

[0076] Furthermore, at least two air inlets 110 are provided, and the area occupied by the air inlets 110 on the housing 100 is relatively large; each air inlet 110 is connected to an air collecting pipe, so the number of air collecting pipes is relatively large, and the sum of the cross-sectional areas of the air collecting pipes is also relatively large; the air collecting pipes are connected to the air collecting member 350 through the air collecting port, so the area occupied by the air collecting port on the air collecting member 350 is also relatively large. Therefore, in order to ensure that the connection between the air collecting member 350 and the air inlet 110 is relatively stable, and at the same time to ensure that the air collection volume of the air collecting member 350 does not decrease, the present embodiment designs the air collecting member 350 to be a shape that matches the layout area of ​​the air inlet 110 (flat or arc-shaped), and each air collecting pipe can connect the air collecting port and the air inlet 110, so that the connection between the air collecting member 350 and the air inlet 110 is relatively stable, and the air collection volume of the air collecting member 350 is relatively large.

[0077] In other embodiments, see Figures 1 to 3 The top of the box 100 is high in the middle and low on both sides. When it rains, rainwater falls from the top of the box 100 from top to bottom, which can quickly drain the rainwater and prevent it from entering the box 100 and affecting the normal operation of the transformer body 200.

[0078] In this invention, see Figure 1 The box-type transformer with a heat dissipation structure also includes: a temperature sensor 400, which is used to detect the temperature inside the box 100; a controller (not shown), which is respectively communicated with the temperature sensor 400, the first fan 120 and the second fan 140, and is used to control the rotation of the first fan 120 and the second fan 140 when the temperature meets the preset conditions.

[0079] By providing a temperature sensor 400, the temperature sensor 400 is used to detect the temperature inside the box 100. Through the communication connection between the temperature sensor 400 and the controller, the temperature sensor 400 can transmit the temperature information inside the box 100 to the controller in real time. The controller determines whether to start the first fan 120 and the second fan 140 based on preset conditions, thereby controlling the temperature change inside the box 100. This can achieve monitoring and protection of the temperature inside the box 100, and timely measures can be taken to prevent excessive temperature, thereby avoiding damage or failure of the transformer body 200.

[0080] Through the intelligent regulation of the controller, the first fan 120 and the second fan 140 are started only when the temperature meets the preset conditions, thereby avoiding unnecessary energy consumption, achieving energy saving effects, reducing energy waste, and lowering operating costs.

[0081] Automated control is achieved through communication between the controller, the temperature sensor 400, the first fan 120, and the second fan 140. Based on feedback from the temperature sensor 400, the controller automatically determines whether to activate the first and second fans 120, 140 and controls their rotation. This reduces manual intervention, improves the automation level of the box-type transformer, and reduces the difficulty of operation and maintenance.

[0082] Further, see Figure 1 The box-type transformer with a heat dissipation structure also includes an inverter 500, and the preset condition includes at least two sub-conditions; the inverter 500 is respectively communicated with the controller, the first fan 120 and the second fan 140, and the controller is used to control the operation of the inverter 500 when the temperature meets one of the sub-conditions, so that the inverter 500 controls the first fan 120 and the second fan 140 to rotate at a preset speed corresponding to the sub-condition.

[0083] In this embodiment, by providing a frequency converter 500, when the temperature meets one of the sub-conditions of the preset conditions, the controller can control the speed of the first fan 120 and the second fan 140 by controlling the operation of the frequency converter 500. Through the regulation of the frequency converter 500, the speed of the first fan 120 and the second fan 140 can be adjusted according to different temperature conditions to achieve more precise heat dissipation control. This can further improve the heat dissipation effect and ensure that the temperature inside the housing 100 is within an appropriate range.

[0084] By providing the inverter 500, the speeds of the first and second fans 120, 140 can be adjusted according to actual needs. Compared to traditional fixed speed control methods, the inverter 500 can adjust the operating speeds of the first and second fans 120, 140 according to different temperature conditions, achieving higher energy efficiency. By reducing unnecessary energy consumption, the operating costs of the box-type transformer can be reduced and energy utilization efficiency can be improved.

[0085] In some embodiments, see Figure 2 and Figure 3 A filter element 600 is further provided in at least one of the air inlet 110 and the air outlet 130 , and the filter element 600 is used to filter the air flowing through the filter element 600 .

[0086] In this embodiment, by setting a filter element 600 in the air inlet 110, the filter element 600 can capture and block impurities such as particulate matter, dust, pollutants, etc. in the air, purify the air entering the interior of the box 100 from the outside of the box 100, thereby protecting the internal equipment and components of the box 100 from the influence of impurities.

[0087] During the operation of the transformer body 200, some debris may be generated. If the filter element 600 in the air outlet 130 is not used to filter it, this debris may be discharged into the external environment, affecting surrounding equipment or personnel. Therefore, by installing the filter element 600 in the air outlet 130, the filter element 600 can prevent the debris inside the box 100 from flowing back into the external environment, thereby protecting the cleanliness and safety of the surrounding environment.

[0088] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0089] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof, which is limited only by the appended claims.

Claims

1. A box-type transformer with a heat dissipation structure, characterized in that: include: A box body, the box body having at least one air inlet and at least one first fan, the first fan being correspondingly arranged in the air inlet and configured to extract air from outside the box body; A transformer body, the transformer body being arranged inside the box; a heat dissipation assembly, the heat dissipation assembly being arranged on a peripheral side of the transformer body, the heat dissipation assembly being in communication with the air inlet, and the heat dissipation assembly being configured to blow the air extracted by the first fan toward the transformer body so that the air absorbs heat generated by the transformer body; The box body also has at least one air outlet and at least one second fan. The second fan is correspondingly arranged in the air outlet, and the second fan is used to draw the air after obtaining the heat to the outside of the box body.

2. The box-type transformer with a heat dissipation structure according to claim 1, characterized in that: The heat dissipation component includes: a first blowing member and a second blowing member, wherein the first blowing member and the second blowing member are respectively arranged on two opposite sides of the transformer body; A ventilation pipe is connected to the first blowing member and the second blowing member, and the ventilation pipe is also connected to the air inlet, so that the first blowing member and the second blowing member blow the air extracted by the first fan toward the transformer body.

3. The box-type transformer with a heat dissipation structure according to claim 2, characterized in that: The first blowing member and the second blowing member are both flat or arc-shaped.

4. The box-type transformer with a heat dissipation structure according to claim 2, characterized in that: The air outlet is located between the first blowing member and the second blowing member.

5. The box-type transformer with a heat dissipation structure according to claim 4, characterized in that: The air outlet is arranged on the side wall of the box body, and the air outlet is located at the top of the side wall.

6. The box-type transformer with a heat dissipation structure according to claim 2, characterized in that: The heat dissipation component further includes: At least one air collecting pipe, the air collecting pipe being connected to the air inlet; An air collecting member is connected between the ventilation pipe and the air collecting pipe, and is used to collect the air extracted by the first fan.

7. The box-type transformer with a heat dissipation structure according to claim 6, characterized in that: The air collecting member is flat or arc-shaped, and has at least two air collecting ports, which are evenly distributed on the air collecting member; At least two air inlets are provided, and the air inlets are evenly distributed on the box body; At least two air collecting pipes are provided, and the air collecting pipes are correspondingly connected to the air inlet and the air collecting port.

8. The box-type transformer with a heat dissipation structure according to any one of claims 1 to 7, characterized in that: Also includes: A temperature sensor, configured to detect the internal temperature of the housing; A controller is communicatively connected to the temperature sensor, the first fan, and the second fan respectively, and is used to control the first fan and the second fan to rotate when the temperature meets a preset condition.

9. The box-type transformer with a heat dissipation structure according to claim 8, characterized in that: Also included is a frequency converter, wherein the preset condition includes at least two sub-conditions; The inverter is communicatively connected to the controller, the first fan and the second fan respectively. The controller is used to control the operation of the inverter when the temperature meets one of the sub-conditions, so that the inverter controls the first fan and the second fan to rotate at a preset speed corresponding to the sub-condition.

10. The box-type transformer with a heat dissipation structure according to any one of claims 1 to 7, characterized in that: A filter is further provided in at least one of the air inlet and the air outlet, and the filter is used to filter the air flowing through the filter.

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