Box-type transformer with heat dissipation structure

Abstract

The utility model 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 utility model relates to the technical field of transformers, in particular to a box-type transformer with a heat dissipation structure. Background Art

[0002] A box-type transformer is a device that uses the principle of electromagnetic induction to transform AC voltage and AC current. The box-type transformer includes a box and a transformer body arranged in the box. During the operation of the transformer body, a large amount of heat will accumulate in the box. In order to ensure the normal operation of the transformer body, the heat in the box needs to 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 in the box.

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

[0005] The utility model 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 utility model provides a box-type transformer with a heat dissipation structure, comprising:

[0007] A box body, 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 outside the box body;

[0008] A transformer body, which is arranged inside the box;

[0009] A heat dissipation component is arranged on the peripheral side of the transformer body, the heat dissipation component is connected to the air inlet, and the heat dissipation component is used to blow the air extracted by the first fan toward the transformer body so that the air can obtain 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 a 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 duct 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 manner, the first blowing member and the second blowing member are both flat-plate-shaped 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 disposed on a side wall of the box body, and the air outlet is located at the top of the side wall.

[0017] In a possible implementation, the heat dissipation component further includes:

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

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

[0020] In a possible implementation, the air collecting member is in a flat plate or arc shape, and has at least two air collecting ports, which are evenly arranged 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 manner, the box-type transformer with a heat dissipation structure further includes:

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

[0025] The controller is respectively connected to the temperature sensor, the first fan and the second fan for communication. The controller is used to control the first fan and the second fan to rotate when the temperature meets the preset conditions.

[0026] In a possible implementation manner, 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 manner, a filter element is further disposed 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 utility model provides a box-type transformer with a heat dissipation structure. By setting a box body and a transformer body, the transformer body is set inside the box body, and the box body can form protection for the transformer body; by setting a heat dissipation component, the heat dissipation component is set on the peripheral side of the transformer body, and the heat dissipation component can dissipate heat for the transformer body on the peripheral side of the transformer body; by setting at least one air inlet and at least one first fan, the first fan is correspondingly set in the air inlet, the first fan can draw air outside the box body, and by connecting the heat dissipation component with the air inlet, the heat dissipation component can blow the air drawn by the first fan to the transformer body, so that the air obtains the heat generated by the transformer body, thereby dissipating the heat of the transformer body; by setting at least one air outlet and at least one second fan, the second fan is correspondingly set in the air outlet, and the second fan can draw the air after obtaining the heat to the outside of the box body, so as to assist the heat dissipation component in dissipating the heat of 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 herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

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

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

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

[0035] Description of reference numerals:

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

[0037] 200- Transformer body;

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

[0039] 400-temperature sensor;

[0040] 500-Inverter;

[0041] 600-Filter element.

[0042] To facilitate understanding of the scheme of the utility model, the spline curves and arrows used in the drawings are explained here: the parts indicated by the spline curves without arrows are solid parts, that is, parts with solid structures; the parts indicated by the spline curves with arrows are virtual parts, that is, parts without solid structures.

[0043] The above drawings have shown clear embodiments of the present invention, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present invention in any way, but to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of the present utility model, 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 drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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, the elements defined by the phrase "comprising..." do not exclude the existence of other identical elements in the process, method, article or device comprising the elements. If there is no conflict, the embodiments of the utility model and the various features in the embodiments can be combined with each other, all within the protection scope of the utility model.

[0046] A box-type transformer is a device that uses the principle of electromagnetic induction to transform AC voltage and AC current. The box-type transformer includes a box and a transformer body arranged in the box. During the operation of the transformer body, a large amount of heat will accumulate in the box. In order to ensure the normal operation of the transformer body, the heat in the box needs to 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 in 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 is accumulated 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 reduction in the service life of the transformer body.

[0049] For the above technical issues, please see Figures 1 to 3The embodiment of the utility model provides a box-type transformer with a heat dissipation structure, including: a box body 100, the box body 100 has 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 is used to extract air outside the box body 100; a transformer body 200, the transformer body 200 is arranged inside the box body 100; a heat dissipation component 300, the heat dissipation component 300 is arranged on the peripheral side of the transformer body 200, the heat dissipation component 300 is connected with the air inlet 110, and the heat dissipation component 300 is used to blow the air extracted by the first fan 120 to the transformer body 200, so that the air obtains the heat generated by the transformer body 200; the box body 100 also has at least one air outlet 130 and at least one second fan 140, the second fan 140 is correspondingly arranged in the air outlet 130, and the second fan 140 is 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 utility model 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 for the transformer body 200 on the peripheral side of the transformer body 200 .

[0052] By setting at least one air inlet 110 and at least one first fan 120, the first fan 120 is correspondingly set in the air inlet 110, the first fan 120 can draw air from the outside of the box 100, and 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 the heat of 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, and 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 outside the box 100 into the inside of the box 100, the second fan 140 draws air from inside 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 assembly 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. Exemplarily, 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 piece 310 and the second blowing piece 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 piece 310 and the second blowing piece 320 at the same time; by respectively arranging the first blowing piece 310 and the second blowing piece 320 on the opposite sides of the transformer body 200, cooler air can be blown to the transformer body 200 on the opposite sides of the transformer body 200, and the cooler air can obtain the heat generated by the transformer body 200 after contacting 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] For further information, 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, and 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 will occur in the box 100, and some heat generated by the transformer body 200 will form hotter air, which will gradually rise to the top of the box 100. If the first blowing member 310 and the second blowing member 320 blow colder air from top to bottom, the colder air will first exchange heat with the hotter air before blowing to the transformer body 200, and then blow to the transformer body 200, which will cause the temperature of the colder air to rise, and then cause the heat exchange efficiency between the colder air after the temperature rise and the transformer body 200 to be low when they come into contact. Therefore, the heat dissipation efficiency of the first blowing member 310 and the second blowing member 320 blowing colder air from bottom to top is higher.

[0062] In some specific implementations, 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 has a low manufacturing cost.

[0064] In some other specific implementations, the first blowing member 310 and the second blowing member 320 are both in a flat plate shape or an arc shape.

[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, the first blowing member 310 and the second blowing member 320 are correspondingly provided with flat or arc-shaped cavities, which 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 turn.

[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 has exchanged heat with the transformer body 200 and obtained heat will flow out from between the first blowing member 310 and the second blowing member 320. The air outlet 130 is arranged 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 improving the air flow speed inside the box 100, and further improving the heat dissipation effect of the transformer body 200.

[0069] For further information, see Figure 3 The air outlet 130 is disposed 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 the operation of the transformer body 200, air convection will occur in the box 100, and some heat generated by the transformer body 200 will form hotter air, which will gradually rise to the top of the box 100. Therefore, by setting the air outlet 130 on the side wall of the box 100, and the air outlet 130 is located at the top of the side wall, the hotter air can be discharged from the air outlet 130 in time and will not accumulate on the top of the box 100.

[0071] In some embodiments, see Figure 1 The heat dissipation assembly 300 also includes: at least one air collecting duct (not shown), which is connected to the air inlet 110; an air collecting member 350, which is connected between the ventilation duct 340 and the air collecting duct, 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 duct 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 small 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), 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 correspondingly connect the air inlets 110 and the air collecting ports.

[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 first blowing piece 310 and the second blowing piece 320 also blow out more air, so the heat dissipation effect of the transformer body 200 is better.

[0076] Moreover, 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 relatively large; the air collecting pipe is 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 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 collecting volume of the air collecting member 350 does not decrease, the present embodiment designs the air collecting member 350 to be a shape (flat or arc-shaped) that matches the layout area of ​​the air inlet 110, 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 collecting 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, and the rainwater can be quickly discharged to prevent the rainwater from entering the box 100 and affecting the normal operation of the transformer body 200.

[0078] In this utility model, please 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 body 100; a controller (not shown), which is communicated with the temperature sensor 400, the first fan 120 and the second fan 140 respectively, and the controller 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 setting 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 according to the preset conditions, thereby controlling the change of the temperature inside the box 100. In this way, the temperature inside the box 100 can be monitored and protected, and measures can be taken in time to prevent the temperature from being too high, 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 reducing operating costs.

[0081] Automatic control is achieved through the communication connection between the controller and the temperature sensor 400, the first fan 120 and the second fan 140. The controller can automatically determine whether the first fan 120 and the second fan 140 need to be started according to the feedback signal of the temperature sensor 400, and control the rotation of the first fan 120 and the second fan 140. This can reduce manual intervention, improve the automation level of the box-type transformer with a heat dissipation structure, and reduce the difficulty of operation and maintenance.

[0082] For further information, 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 communicated with the controller, the first fan 120 and the second fan 140 respectively, 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 setting the frequency converter 500, when the temperature meets one of the sub-conditions in 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 adjustment 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 accurate heat dissipation control. In this way, the heat dissipation effect can be further improved to ensure that the temperature inside the box 100 is within a suitable range.

[0084] By setting the frequency converter 500, the rotation speed of the first fan 120 and the second fan 140 can be adjusted according to actual needs. Compared with the traditional fixed speed control method, the frequency converter 500 can adjust the working speed of the first fan 120 and the second fan 140 according to different temperature conditions to achieve higher energy efficiency. By reducing unnecessary energy consumption, the operating cost of the box-type transformer can be reduced and the energy utilization efficiency can be improved.

[0085] In some embodiments, see Figure 2 and Figure 3 A filter element 600 is further disposed 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 there is no filter 600 at the air outlet 130 to filter, these debris may be discharged into the external environment, affecting surrounding equipment or personnel. Therefore, by arranging the filter 600 in the air outlet 130, the filter 600 can prevent the debris inside the box 100 from flowing back to the external environment, thereby protecting the cleanliness and safety of the surrounding environment.

[0088] Those skilled in the art will readily come up with other embodiments of the present invention after considering the specification and practicing the utility model disclosed herein. The present invention is intended to cover any variation, use or adaptation of the present invention, which follows the general principles of the present invention and includes common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0089] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention 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 the first fan being used to extract air outside the box body; A transformer body, wherein the transformer body is arranged inside the box; a heat dissipation component, the heat dissipation component being arranged on the peripheral side of the transformer body, the heat dissipation component being communicated with the air inlet, and the heat dissipation component being used to blow the air extracted by the first fan toward the transformer body so that the air acquires the 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 comprises: 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 heat dissipation structure according to claim 2, characterized in that: The first blowing member and the second blowing member are both in a flat plate shape or an arc shape.

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 also 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 for collecting 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 in a flat plate or arc shape, and has at least two air collecting ports, which are evenly arranged 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, the temperature sensor is used to detect the temperature inside the box; A controller is respectively connected to the temperature sensor, the first fan and the second fan for communication, 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 comprising a frequency converter, the preset condition comprises 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 disposed 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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