Transformer module and heat dissipation device

Abstract

The utility model discloses a transformer module and a heat dissipation device, and belongs to the technical field of electrical equipment.The transformer module comprises a case, a transformer body and the heat dissipation device; the case is provided with a first air port and a second air port, and the transformer body is arranged in the case; the heat dissipation device comprises a partition plate and a fan, the partition plate is arranged in the case, the partition plate is arranged around the transformer body and divides the internal space of the case into a first cavity and a second cavity which are arranged in the first direction, the first cavity communicates with the first air opening, the second cavity communicates with the second air opening, and the transformer body is provided with a body channel; the fan is used for pulling airflow to flow through the case; the gap between the transformer and the inner circumferential wall of the case is sealed through the partition plate, so that airflow mainly flows from the body channel of the transformer, and the airflow is concentrated in the body channel and can directly absorb and take away the content in the transformer, so that the heat dissipation efficiency is improved, and the heat dissipation effect of the transformer is enhanced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electrical equipment, and particularly relates to a transformer module and a heat dissipation device. BACKGROUND

[0002] With the development of the new energy industry, the scale of each new energy industry station is becoming larger and larger, and the power of the related power distribution modules is also increasing. At present, the power distribution devices often adopt air cooling for heat management. For example, as one of the important electrical components, the continuous increase in power leads to a substantial increase in the heat generated by the transformer. However, the existing air cooling structure has poor heat dissipation effect on the transformer. CONTENT OF THE UTILITY MODEL

[0003] The application provides a transformer module, which aims to solve the technical problem of poor heat dissipation effect of the existing air cooling structure on the transformer. Another object of the application is to provide a heat dissipation device.

[0004] Technical scheme: The transformer module provided by the application comprises a case, a transformer body and a heat dissipation device.

[0005] The case is provided with a first air inlet and a second air inlet, and the transformer body is arranged in the case.

[0006] The heat dissipation device comprises a partition plate and a fan. The partition plate is arranged in the case, surrounds the transformer body, and divides the internal space of the case into a first chamber and a second chamber arranged along a first direction. The first chamber is communicated with the first air inlet, the second chamber is communicated with the second air inlet, the transformer body has a body passage, and the first direction is the extension direction of the body passage.

[0007] The fan is used to draw air flow through the case.

[0008] In some embodiments, the first air inlet is arranged on one side wall of the case along a second direction, the second direction intersects the first direction, the fan is arranged opposite to the first air inlet, the first air inlet has a first edge and a second edge oppositely distributed along the first direction, and the second edge is located between the first edge and the second air inlet.

[0009] The heat dissipation device further comprises a first flow guide assembly, and the first flow guide assembly comprises a first flow guide plate. The first flow guide plate is connected to the partition plate, at least part of the first flow guide plate extends from the first chamber to the outside of the first air inlet in an inclined manner, and in the first direction, the distance between the end of the first flow guide plate away from the partition plate and the first edge is greater than the distance between the end of the first flow guide plate away from the partition plate and the second edge.

[0010] In some embodiments, the first flow guide assembly further comprises a second flow guide plate connected to the first flow guide plate away from the side of the partition plate, the second flow guide plate extending along the second direction.

[0011] In some embodiments, the transformer body comprises a first end and a second end oppositely arranged along a first direction, the first end being located in the first chamber, the second end being located in the second chamber, and the partition plate being arranged between the first end and the second end, the distance between the partition plate and the first end being greater than the distance between the partition plate and the second end in the first direction.

[0012] In some embodiments, the air outlet direction of the fan forms an angle β with the first flow guide plate, satisfying 0°≤β≤5°.

[0013] In some embodiments, the transformer body comprises a first end and a second end oppositely arranged along a first direction, the first end being located in the first chamber, the second end being located in the second chamber, and the partition plate being arranged between the first end and the second end, the distance between the partition plate and the first end being greater than the distance between the partition plate and the second end in the first direction.

[0014] In some embodiments, the heat dissipation device comprises a plurality of fans, and the plurality of fans are arranged at intervals along a third direction intersecting the first direction and the second direction.

[0015] In some embodiments, the first flow guide assembly further comprises a flow limiting plate, and two adjacent fans are separated by the flow limiting plate, and the flow limiting plate is connected to the first flow guide plate.

[0016] In some embodiments, a plurality of flow limiting plates are arranged at intervals along a third direction, and one fan is arranged corresponding to each of two adjacent flow limiting plates.

[0017] In some embodiments, the heat dissipation device further comprises a second flow guide assembly, and the second flow guide assembly comprises a wind guide plate, the wind guide plate being arranged opposite to and spaced apart from the first air inlet, or the wind guide plate covering the first air inlet.

[0018] The wind guide plate is connected to the second flow guide plate, the wind guide plate is provided with a through hole, and the fan is arranged opposite to the through hole.

[0019] In some embodiments, the second flow guide assembly further comprises a surrounding part, and the surrounding part is arranged around the outer periphery of the through hole.

[0020] Alternatively, the second flow guide assembly further comprises a plurality of surrounding parts, and the plurality of surrounding parts are arranged at intervals around the outer periphery of the through hole.

[0021] At least part of the fan is arranged inside the enclosing part

[0022] In some embodiments, the heat dissipation device further comprises a second flow guide assembly, the second flow guide assembly comprises two flow limiting parts, the two flow limiting parts are arranged on two sides of the fan and connected with the second flow guide plate, the fan has a positive projection on the flow limiting part along a third direction, and the positive projection is located between two ends of the flow limiting part distributed relative to each other along the first direction, and at least part of the flow limiting part extends towards the fan.

[0023] In some embodiments, the second air outlet is arranged opposite to the transformer body along the first direction, and the fan is arranged in the second air outlet.

[0024] In some embodiments, the heat dissipation device further comprises a plurality of baffle plates, and the plurality of baffle plates are arranged around the first air outlet.

[0025] Correspondingly, the heat dissipation device provided in the embodiments of the present application is arranged in a transformer module, the heat dissipation device comprises a partition plate and a fan, the partition plate is arranged in a case of the transformer module to divide the case of the transformer module into a first chamber and a second chamber, and the fan is used to draw airflow to flow through the case of the transformer module.

[0026] Beneficial effects: the transformer module in the embodiments of the present application seals the gap between the transformer body and the surrounding wall in the case by the partition plate, when the fan draws airflow to enter from the first air outlet or the second air outlet, the airflow is blocked by the partition plate, so that the airflow mainly flows from the body passage of the transformer body and then flows out through the other air outlet, since the airflow is concentrated in the body passage, the airflow can directly exchange heat with the inside of the transformer body, and the heat inside the transformer body is taken away by the flow of the airflow, so that the heat dissipation efficiency is improved, thereby enhancing the heat dissipation effect of the transformer body. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below, and obviously, the drawings in the following description can be used to obtain other drawings without creative labor by those skilled in the art.

[0028] Figure 1 The structural schematic diagram of the transformer module provided in the embodiments of the present application is shown in the figure;

[0029] Figure 2 The position schematic diagram of the partition plate provided in the embodiments of the present application is shown in the figure;

[0030] Figure 3Another position diagram of the partition provided by the embodiment of the present application;

[0031] Figure 4 A structure diagram of the fan provided by the embodiment of the present application;

[0032] Figure 5 A structure diagram of the first flow guide assembly provided by the embodiment of the present application;

[0033] Figure 6 A structure diagram of the flow limiting plate provided by the embodiment of the present application;

[0034] Figure 7 A structure diagram of the multiple flow limiting plates provided by the embodiment of the present application;

[0035] Figure 8 A structure diagram of the second flow guide assembly provided by the embodiment of the present application;

[0036] Figure 9 A structure diagram of the air guide plate provided by the embodiment of the present application;

[0037] Figure 10 A structure diagram of the first flow guide assembly and the second flow guide assembly provided by the embodiment of the present application;

[0038] Figure 11 A diagram of another structure of the second flow guide assembly provided by the embodiment of the present application;

[0039] Figure 12 A diagram of another structure of the second flow guide assembly provided by the embodiment of the present application;

[0040] Figure 13 A structure diagram of the multiple enclosure parts provided by the embodiment of the present application;

[0041] Figure 14 A diagram of the relative position of the fan provided by the embodiment of the present application;

[0042] The reference signs: 1, case; 11, first air port; 111, first edge; 112, second edge; 12, second air port; 13, first cavity; 14, second cavity; 2, partition; 3, fan; 4, first flow guide assembly; 41, first flow guide plate; 42, second flow guide plate; 43, flow limiting plate; 431, air gathering cavity; 5, second flow guide assembly; 51, air guide plate; 511, through hole; 52, enclosure part; 53, flow limiting part; 6, flow blocking plate; 7, transformer body; 70, body passage; 71, first end; 72, second end. DETAILED DESCRIPTION

[0043] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0044] In the description of the present application, it should be understood that the terms "height", "thickness", "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "a plurality of" is two or more, at least one of which can be one, two or more, unless otherwise explicitly specified.

[0045] It should also be noted that in the drawings of the embodiments of the present application, the arrow marked X represents the first direction X, the arrow marked Y represents the second direction Y, and the arrow marked Z represents the third direction Z. The first direction X, the second direction Y and the third direction Z are introduced to more clearly describe the structure and relative positional relationship of the components in the transformer module. In actual application, the first direction X, the second direction Y and the third direction Z can change according to the different placement modes of the transformer module.

[0046] As a prologue of the embodiments of the present application, the transformer is installed in an electrical box, and the transformer has a body channel inside, which extends along the length direction of the transformer and is used to communicate with the outside air for heat dissipation. The existing heat dissipation scheme for the transformer is usually to use a fan to blow or extract air to the transformer body. Since there is a gap between the transformer and the inner wall of the electrical box, the flow resistance is relatively small, most of the airflow directly flows through the gap between the transformer body and the gap between the transformer body and the inner wall of the electrical box, mainly taking away the heat on the outer surface of the transformer body, and more heat still accumulates inside the transformer, resulting in poor heat dissipation effect of the transformer.

[0047] Please refer to Figures 1 to 4The transformer module of the embodiment of the present application comprises a cabinet 1, a transformer body 7 and a heat dissipation device. The cabinet 1 is provided with a first air port 11 and a second air port 12 communicating with the internal space of the cabinet 1. The transformer body 7 is arranged in the cabinet 1 to isolate the transformer body 7 from the external environment, thereby playing a protective and shielding role on the transformer body 7. The cabinet 1 is enclosed by a plurality of panel surfaces. The plurality of panel surfaces can be divided into a top panel, a bottom panel and side panels. The top panel and the bottom panel are arranged in the first direction X. The plurality of side panels are arranged between the top panel and the bottom panel and around the outer periphery of the top panel and the bottom panel to enclose the cavity of the cabinet 1. The first air port 11 is an opening on the cabinet 1. The first air port 11 can be arranged on the top panel or the side panel. The second air port 12 can be arranged on the side panel or the bottom panel, so as to ensure that the first air port 11 and the second air port 12 communicate with the cavity in the internal space of the cabinet 1.

[0048] The heat dissipation device comprises a partition plate 2 and a fan 3. The partition plate 2 is arranged in the cabinet 1 and around the transformer body 7. That is, the partition plate 2 has an avoiding hole penetrating in the first direction X. The transformer body 7 passes through the avoiding hole. The inner hole wall profile of the avoiding hole is matched with the outer peripheral profile of the transformer body 7 as a whole. Meanwhile, from the perspective of electrical safety, there is a gap between the inner hole wall of the avoiding hole and the transformer body 7. The gap is smaller than the gap between the transformer body 7 and the inner wall of the cabinet 1. The partition plate 2 divides the internal space of the cabinet 1 into a first chamber 13 and a second chamber 14 arranged in the first direction X. The first chamber 13 communicates with the first air port 11. The second chamber 14 communicates with the second air port 12. Due to the gap between the partition plate 2 and the transformer body 7, the first chamber 13 and the second chamber 14 communicate with each other.

[0049] The transformer body 7 has a body channel 70. The first direction X is the extension direction of the body channel 70. The transformer body 7 comprises a coil. The body channel 70 can be an independent channel arranged in the coil or can be formed by the gap between the coils, such as the gap between the high-voltage coil and the low-voltage coil. One end of the body channel 70 is arranged in the first chamber 13. The other end of the body channel 70 is arranged in the second chamber 14.

[0050] The fan 3 is used to draw air into the cabinet 1. That is, the external air enters through the first air port 11 under the traction of the fan 3, and then is discharged through the first chamber 13, the second chamber 14 and the second air port 12. Alternatively, the external air enters through the second air port 12 under the traction of the fan 3, and then is discharged through the second chamber 14, the first chamber 13 and the first air port 11. Here, the flow direction of the air flow is indicated, but the air flow does not necessarily flow through the above-mentioned objects. For example, the first air port 11 is arranged at the top of the cabinet 1. The second air port 12 is arranged at the bottom of the cabinet 1. The external cold air enters from the top first air port 11, and then is discharged through the first chamber 13, the second chamber 14 and the bottom second air port 12.

[0051] In the case that the air flow is drawn into the first chamber 13 from the first air port 11 by the fan 3, the air flow is blocked by the first partition 2, a part of the air flow enters the second chamber 14 through the bypass hole, and due to the relatively small spacing between the partition 2 and the transformer body 7, the flow resistance is large, so this part of the air flow is relatively small, and most of the air flow is backflowed after being blocked by the partition 2 and flows into the second chamber 14 through the body channel 70, and finally is discharged from the second air port 12. Since most of the air flow flows from the body channel 70, the absorption of heat inside the transformer body 7 is enhanced, so that the heat inside the transformer body 7 is continuously taken out by the air flow, reducing the accumulation of heat inside the transformer body 7, achieving synchronous heat dissipation of the inside and the surface of the transformer body 7, and being beneficial to improve the heat dissipation effect. The case that the air flow is drawn into the second air port 12 by the fan 3 is the same as the foregoing case, which will not be described here.

[0052] Please refer to Figure 2 In some embodiments, the first air port 11 is arranged at one side wall of the cabinet 1 along a second direction Y intersecting the first direction X, that is, the first direction X and the second direction Y are distributed at an angle, and the angle is 85°-95°, preferably 90°. The fan 3 is arranged opposite to the first air port 11, so as to make the air flow drawn by the fan 3 enter from the first air port 11. The first air port 11 has a first edge 111 and a second edge 112 arranged opposite along the first direction X, and the second edge 112 is located between the first edge 111 and the second air port 12. The relative positions of the first air port 11 and the second air port 12 avoid the case of being opened upward, which helps to reduce the possibility of water leakage.

[0053] The heat dissipation device further comprises a first flow guide assembly 4, and the first flow guide assembly 4 comprises a first flow guide plate 41 connected to the partition 2. At least part of the first flow guide plate 41 extends obliquely from the first chamber 13 to the outside of the first air port 11, that is, the first flow guide plate 41 is arranged at an angle with the first direction X. In the first direction X, the distance between the end of the first flow guide plate 41 away from the partition 2 and the first edge 111 is greater than the distance between the end of the first flow guide plate 41 away from the partition 2 and the second edge 112, that is, the end of the first flow guide plate 41 away from the partition 2 is closer to the second edge 112 than the first edge 111.

[0054] The first flow guide plate 41 and the partition 2 can be integrally formed, for example, processed and formed by bending process or pultrusion process, or can be fixed by welding. The first flow guide plate 41 is arranged obliquely and blocks the space between the partition 2 and the second edge 112, so that the air flow can quickly and directly flow to the transformer body 7 along the first flow guide plate 41, reducing the flow loss of the air flow.

[0055] Please refer to Figure 2 and Figure 3In some embodiments, the first air guide assembly 4 further comprises a second air guide plate 42 connected to the first air guide plate 41 on the side away from the partition 2 and extending along the second direction Y, and in this case, the fan 3 is arranged above the second air guide plate 42 in the first direction X. The second air guide plate 42 plays a role of blocking the airflow below the fan 3, so that the airflow generated below the fan 3 can flow to the transformer body 7 through the second air guide plate 42 and the first air guide plate 41, further reducing the loss of airflow.

[0056] For reference Figure 2 In some embodiments, the transformer body 7 comprises a first end 71 and a second end 72 arranged opposite along the first direction X, wherein the first end 71 corresponds to the top of the coil of the transformer body 7, and the first end 71 is located in the first chamber 13, and the second end 72 corresponds to the bottom of the coil of the transformer body 7, and the second end 72 is located in the second chamber 14, and the partition 2 is arranged at the first end 71. The body channel 70 of the transformer body 7 extends from the end face of the first end 71 to the end face of the second end 72. The partition 2 arranged at the first end 71 can be understood as that, in the first direction X, the upper end face of the transformer body 7 is flush with the upper end face of the partition 2, or the upper end face of the transformer body 7 is lower than the upper end face of the partition 2, and there is a certain gap between the two to reserve the positional deviation in actual installation. In the present embodiment, the first end 71 is opposite to the position between the first rim 111 and the second rim 112 in the second direction Y, or in other words, the transformer body 7 has a projection in the second direction Y on the plane where the first air inlet 11 is located, and the upper edge of the projection is located between the first rim 111 and the second rim 112, and in this case, the first air guide plate 41 extends downwardly out of the first air inlet 11. The fan 3 blows the airflow to the first air inlet 11, and the airflow flows into the first chamber 13 along the first air guide plate 41 and directly reaches the top opening of the body channel 70, so that the airflow can quickly flow into the body channel 70 for heat dissipation, reducing the airflow passing through the outside of the transformer body 7, achieving the purpose of preferentially making the airflow enter the body channel 70, thereby improving the heat dissipation efficiency of the transformer body 7.

[0057] For reference Figure 2 and Figure 4In some embodiments, the air outlet direction of the fan 3 forms an angle β with the first guide plate 41, and the angle β satisfies 0°≤β≤5°. Specifically, the angle β can be any value among 0°, 1°, 2°, 3°, 4°, 5° or a range between any two values. The air outlet direction of the fan 3 is parallel to the axis of the fan 3, which is the center line of the rotating component (impeller or rotor) inside the fan 3 and passes through the rotating axis of the fan 3. The air outlet direction of the fan 3 forms the angle β with the first guide plate 41, which means that the axis of the fan 3 forms the angle β with the first guide plate 41. By limiting the size of the angle β, the resistance of the airflow drawn by the fan 3 when blowing to the first guide plate 41 is reduced, and the power consumption of the fan 3 is reduced.

[0058] Please refer to Figure 3 In some embodiments, the transformer body 7 includes a first end 71 and a second end 72 arranged opposite to each other along the first direction X. The first end 71 is located in the first chamber 13 and arranged opposite to the first air inlet 11. The second end 72 is located in the second chamber 14. The partition plate 2 is arranged between the first end 71 and the second end 72. In the first direction X, the distance between the partition plate 2 and the first end 71 is greater than the distance between the partition plate 2 and the second end 72. In this embodiment, the partition plate 2 is close to the second edge 112, the first guide plate 41 extends upwardly and out of the first air inlet 11, and the first guide plate 41 cooperates with the second guide plate 42 to block the airflow below the fan 3 and guide the airflow to the transformer body 7.

[0059] Please refer to Figure 5 In some embodiments, the heat dissipation device includes a plurality of fans 3. The plurality of fans 3 are arranged at intervals along the third direction Z. Each fan 3 is arranged opposite to the first air inlet 11. The third direction Z intersects the first direction X and the second direction Y. The plurality of fans 3 increase the airflow into the first chamber 13, which helps to enhance the heat dissipation effect of the transformer body 7.

[0060] Please refer to Figure 6 In some embodiments, the first guide assembly 4 further includes a flow limiting plate 43. Two adjacent fans 3 are separated by the flow limiting plate 43. The flow limiting plate 43 is connected to the first guide plate 41. The flow limiting plate 43 separates each fan 3 to prevent air from being drawn between the fans 3, which causes uneven air distribution. In other embodiments, the flow limiting plate 43 can be connected to the second guide plate 42 or connected to both the first guide plate 41 and the second guide plate 42.

[0061] Please refer to Figure 7In some embodiments, the number of flow limiting plates 43 is set to be multiple, and the multiple flow limiting plates 43 are arranged at intervals along the third direction Z. Two adjacent flow limiting plates 43 correspond to one fan 3, that is, the orthogonal projection of the fan 3 in the same plane along the second direction Y is located between the orthogonal projections of the two flow limiting plates 43. The airflow drawn by the fan 3 enters between the two flow limiting plates 43, and the flow limiting plates 43 arranged on both sides of the airflow direction can reduce the loss of airflow to the side during the flow process. In the present embodiment, the fan 3 can be at least partially located between the two flow limiting plates 43 to block in the initial stage of airflow generation, thereby further reducing the loss of air volume. In other embodiments, in combination with the case where the partition plate 2 is arranged at the first end 71 and the second flow guide plate 42, two adjacent flow limiting plates 43 and the first flow guide plate 41 and the second flow guide plate 42 together form a wind gathering cavity 431. Each wind gathering cavity 431 corresponds to one fan 3, and the wind gathering cavity 431 increases the blocking range of the fan 3, thereby enhancing the effect of gathering airflow.

[0062] Please refer to Figure 8 and Figure 9 In some embodiments, the heat dissipation device further comprises a second flow guide assembly 5, and the second flow guide assembly 5 comprises a wind guide plate 51 connected to the second flow guide plate 42 and arranged opposite to the first air outlet 11. The wind guide plate 51 is provided with a through hole 511, and the fan 3 is arranged opposite to and spaced apart from the through hole 511. In the present embodiment, the second flow guide plate 42 is connected to one end of the first flow guide plate 41 extending downward at an angle, and the wind guide plate 51 can cover most of the first air outlet 11 in the second direction Y, thereby preventing the hot air blown out of the first chamber 13 from flowing back and reducing the flow resistance loss of the air.

[0063] Please refer to Figure 10 In combination with the flow limiting plate 43, two adjacent flow limiting plates 43, the first flow guide plate 41, the second flow guide plate 42 and the wind guide plate 51 together form a relatively closed wind gathering cavity 431, which can further increase the effect of guiding and gathering airflow.

[0064] Please refer to Figure 8 and Figure 9 In some embodiments, the wind guide plate 51 extends along the first direction X, or the wind guide plate 51 is arranged at an angle with the first direction X, and the angle between the two is the same as the angle β of the fan 3.

[0065] Please refer to Figure 12In some embodiments, the heat dissipation device further comprises a second flow guide assembly 5, the second flow guide assembly 5 comprises a wind guide plate 51, the wind guide plate 51 is connected to the second flow guide plate 42, the wind guide plate 51 covers the first air port 11, the wind guide plate 51 is provided with a through hole 511, and the fan 3 is arranged opposite to the through hole 511. The wind guide plate 51 covers the first air port 11, which means that the two are close to each other, and the wind guide plate 51 can cover most or all of the area of the first air port 11. In this embodiment, the second flow guide plate 42 is connected to one end of the first flow guide plate 41 extending upwardly and obliquely, and the wind guide plate 51 covers the first air port 11, so that the first chamber 13 becomes a relatively closed space, which can guide the cold air generated by the fan 3 to flow into the first chamber 13, reduce the outflow of internal airflow, and at the same time, due to the large air resistance between the transformer body 7 and the partition plate 2, most of the airflow can enter from the body channel 70.

[0066] Please refer to Figure 8 、 Figure 9 and Figure 13 , the second flow guide assembly 5 further comprises a surrounding part 52, the surrounding part 52 is arranged around the outer periphery of the through hole 511, or the second flow guide assembly 5 comprises a plurality of surrounding parts 52, the plurality of surrounding parts 52 are arranged around the outer periphery of the through hole 511 at intervals, and at least part of the fan 3 is arranged inside the surrounding part 52. The surrounding part 52 can be circular or polygonal, as long as it can enclose most or all of the outer periphery of the through hole 511.

[0067] The cold air generated by the fan 3 is blocked by the surrounding part 52 around it, most of which directly enters the first chamber 13, avoiding the outflow of part of the wind from the four sides of the fan 3, and under the joint action of the first flow guide plate 41 and the partition plate 2, most of the airflow flows out through the body channel 70, increasing the heat dissipation performance and making the high temperature resistance of the transformer body 7 stronger.

[0068] In other embodiments, the plurality of surrounding parts 52 can also be arranged to be connected in sequence around the through hole 511.

[0069] Please refer to Figure 11 In some embodiments, the heat dissipation device further comprises a second flow guide assembly 5, the second flow guide assembly 5 comprises two flow limiting parts 53, the two flow limiting parts 53 are arranged on both sides of the fan 3 and connected with the second flow guide plate 42, the fan 3 has a positive projection on the flow limiting part 53 along the third direction Z, and the positive projection is located between the two ends of the flow limiting part 53 distributed along the first direction X, and at least part of the flow limiting part 53 extends towards the fan 3. Specifically, the flow limiting part 53 is L-shaped, one side of which extends along the second direction Y, and the other side extends along the third direction Z and approaches or abuts the outer periphery of the fan 3. The two flow limiting parts 53 reduce the loss of airflow generated by the fan 3 in the third direction Z.

[0070] In the embodiment, the second guide plate 42 is connected to one end of the first guide plate 41 extending upwardly and obliquely, the number of the fans 3 is multiple, and the multiple fans 3 are arranged at intervals along the third direction Z. The orthographic projection of the multiple fans 3 on the transformer body 7 along the second direction Y can cover most of the part of the transformer body 7 above the partition plate 2. In order to reduce the air flow between the fans 3, a flow limiting plate 43 can be arranged between two adjacent fans 3.

[0071] Please refer to Figure 14 In some embodiments, the second air port 12 is arranged opposite to the transformer body 7 along the first direction X, and the fan 3 is arranged in the second air port 12. The first air port 11 is arranged on the side of the cabinet 1, and the second air port 12 is arranged on the bottom of the cabinet 1. The partition plate 2 is arranged between the first air port 11 and the second end 72. Preferably, the partition plate 2 is arranged close to the second end 72, and the bottom surface of the partition plate 2 is flush with the end surface of the second end 72 along the first direction X. The upper part of the partition plate 2 is the first chamber 13, and the lower part of the partition plate 2 is the second chamber 14. The cold air generated by the fan 3 enters from the second air port 12. Since the fan 3 is arranged opposite to the transformer body 7, the bottom opening of the body channel 70 is directly opposite to the air flow, so that the air flow can quickly pass through the heat absorption of the body channel 70 and finally be discharged through the first air port 11. In this case, the fan 3 makes full use of the space below the transformer body 7 and the original air duct inside the cabinet 1, so that the heat dissipation structure is simplified, and the safe electrical distance between the heat dissipation structure and the transformer body 7 is guaranteed.

[0072] Please refer to Figure 1 In some embodiments, the heat dissipation device further comprises multiple flow blocking plates 6, and the multiple flow blocking plates 6 are arranged around the first air port 11. Specifically, the number of the flow blocking plates 6 is three, two of which are arranged at intervals along the third direction Z, and the third flow blocking plate 6 is arranged on the second edge 112. The multiple flow blocking plates 6 reduce the cross-sectional area of the first air port 11, so that the air flow driven by the fan 3 is gathered through the flow blocking plates 6, reducing the loss of air volume.

[0073] Please refer to Figure 12 In some embodiments, in the case of sealing the first air port 11 with the air guide plate 51, the multiple flow blocking plates 6 are arranged around the outer periphery of the air guide plate 51. At this time, the flow blocking plates 6 block part of the gap around the air guide plate 51, which can improve the sealing effect of the air guide plate 51 on the first air port 11 and reduce the outward diffusion of the air flow in the first chamber 13.

[0074] In some embodiments, the fan 3 can be arranged in any one component or adjacent two components of the first guide plate 41, the second guide plate 42, the air guide plate 51 or the cabinet 1. When connected, it can be directly connected with the target component or indirectly connected through a component to meet the space requirements. The connection structure can adopt screws, bolts, pins, etc., and the component can adopt brackets, hangers, angle steels, rib plates, profiles, etc.

[0075] In some embodiments, the heat dissipation device comprises a plurality of fans 3, the plurality of first fans 3 are arranged at the first air outlet 11 or the second air outlet 12, or the first air outlet 11 and the second fan 3 each correspond to at least one fan 3, and the working modes of the fans 3 corresponding to the first air outlet 11 and the second air outlet 12 are different, for example, the fans 3 at the first air outlet 11 blow air into the first chamber 13, and the fans 3 at the second air outlet 12 draw air in the second chamber 14 outwards, so as to enhance the flow speed of the airflow.

[0076] Correspondingly, the heat dissipation device provided by the embodiments of the present application is arranged in the transformer module, and the heat dissipation device comprises a partition plate 2 and a fan 3. The partition plate 2 is arranged in the cabinet 1 of the transformer module to divide the inside of the cabinet 1 of the transformer module into a first chamber 13 and a second chamber 14. The fan 3 is arranged to draw airflow through the inside of the cabinet 1 of the transformer module. In addition, the heat dissipation device can also be used for ventilation and heat dissipation of electrical components such as inverters and rectifiers.

[0077] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0078] The transformer module and the heat dissipation device provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the technical solutions and the core ideas of the present application; those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A transformer module, characterized in that, Includes a chassis (1), a transformer body (7), and a heat dissipation device; The chassis (1) is provided with a first air vent (11) and a second air vent (12), and the transformer body (7) is disposed inside the chassis (1); The heat dissipation device includes a partition (2) and a fan (3). The partition (2) is disposed inside the chassis (1). The partition (2) surrounds the transformer body (7) and divides the internal space of the chassis (1) into a first chamber (13) and a second chamber (14) arranged along a first direction. The first chamber (13) is connected to the first air vent (11), and the second chamber (14) is connected to the second air vent (12). The transformer body (7) has a body channel (70), and the first direction is the extension direction of the body channel (70). The fan (3) is used to draw airflow through the casing (1).

2. The transformer module according to claim 1, characterized in that, The first air vent (11) is disposed on a side wall of the chassis (1) along a second direction, the second direction intersecting the first direction, the fan (3) is disposed opposite to the first air vent (11), the first air vent (11) has a first edge (111) and a second edge (112) distributed opposite to each other along the first direction, the second edge (112) being located between the first edge (111) and the second air vent (12); The heat dissipation device further includes a first airflow guiding component (4), which includes a first airflow guiding plate (41). The first airflow guiding plate (41) is connected to the partition (2), and at least a portion of the first airflow guiding plate (41) extends obliquely from the first chamber (13) to the outside of the first air outlet (11). In the first direction, the distance between the end of the first airflow guiding plate (41) away from the partition (2) and the first edge (111) is greater than the distance between the end of the first airflow guiding plate (41) away from the partition (2) and the second edge (112).

3. The transformer module according to claim 2, characterized in that, The first flow guide assembly (4) further includes a second flow guide plate (42), which is connected to the side of the first flow guide plate (41) away from the partition (2) and extends along the second direction.

4. The transformer module according to claim 3, characterized in that, The transformer body (7) includes a first end (71) and a second end (72) disposed opposite to each other along a first direction. The first end (71) is located in the first chamber (13), and the second end (72) is located in the second chamber (14). The partition (2) is disposed at the first end (71).

5. The transformer module according to claim 4, characterized in that, The air outlet direction of the fan (3) forms an angle β with the first guide plate (41), satisfying: 0°≤β≤5°.

6. The transformer module according to claim 3, characterized in that, The transformer body (7) includes a first end (71) and a second end (72) arranged opposite to each other along a first direction. The first end (71) is located in the first chamber (13), and the second end (72) is located in the second chamber (14). The partition (2) is disposed between the first end (71) and the second end (72). In the first direction, the distance between the partition (2) and the first end (71) is greater than the distance between the partition (2) and the second end (72).

7. The transformer module according to any one of claims 2 to 6, characterized in that, The heat dissipation device includes multiple fans (3), which are arranged at intervals along a third direction, which intersects the first direction and the second direction.

8. The transformer module according to claim 7, characterized in that, The first flow guiding component (4) further includes a flow limiting plate (43), which separates two adjacent fans (3) from each other. The flow limiting plate (43) is connected to the first flow guiding plate (41).

9. The transformer module according to claim 8, characterized in that, The number of flow limiting plates (43) is set to multiple, and the multiple flow limiting plates (43) are spaced apart along a third direction. Two adjacent flow limiting plates (43) are respectively provided with one fan (3).

10. The transformer module according to any one of claims 3 to 6, characterized in that, The heat dissipation device further includes a second air guiding component (5), which includes an air guide plate (51). The air guide plate (51) is opposite to and spaced apart from the first air outlet (11), or the air guide plate (51) covers the first air outlet (11). The air guide plate (51) is connected to the second guide plate (42), the air guide plate (51) is provided with a through hole (511), and the fan (3) is arranged opposite to the through hole (511).

11. The transformer module according to claim 10, characterized in that, The second flow guiding component (5) further includes a baffle (52) which is disposed around the outer periphery of the through hole (511); Alternatively, the second flow guiding component (5) may further include a plurality of the aforementioned blocking portions (52), which are arranged at intervals around the outer periphery of the through hole (511); At least a portion of the fan (3) is disposed inside the enclosure (52).

12. The transformer module according to claim 6, characterized in that, The heat dissipation device further includes a second flow guiding component (5), which includes two flow limiting parts (53). The two flow limiting parts (53) are disposed on both sides of the fan (3) and connected to the second flow guiding plate (42). The fan (3) has an orthographic projection on the flow limiting part (53) along a third direction, and the orthographic projection is located between the two ends of the flow limiting part (53) that are relatively distributed along the first direction. At least a portion of the flow limiting part (53) extends toward the fan (3).

13. The transformer module according to claim 1, characterized in that, The second air vent (12) is arranged opposite to the transformer body (7) along the first direction, and the fan (3) is arranged at the second air vent (12).

14. The transformer module according to claim 1, characterized in that, The heat dissipation device also includes a plurality of baffles (6), which are arranged around the first air vent (11).

15. A heat dissipation device, disposed in a transformer module, characterized in that, The heat dissipation device includes a partition (2) and a fan (3). The partition (2) is used to be installed inside the chassis (1) of the transformer module to divide the interior of the chassis (1) of the transformer module into a first chamber (13) and a second chamber (14). The fan (3) is used to draw airflow through the chassis (1) of the transformer module.

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