Modularized heat dissipation fan assembly for Huai-type box transformer substation

Abstract

The utility model relates to the technical field of heat dissipation fans, and discloses a modularized heat dissipation fan assembly for a Huai-type box transformer substation, which comprises a mounting shell, a mounting frame, a fan and an exhaust window, the mounting shell is connected to a box body of the Hua-type box transformer substation; the mounting shell comprises a mounting plate and a mounting cylinder connected to one side of the mounting plate; the mounting cylinder can be embedded into a mounting opening of a box body of the Huai-type box transformer substation, and one side, connected with the mounting cylinder, of the mounting plate can abut against the outer wall of the box body of the Huai-type box transformer substation; a first groove is formed in the middle of the mounting plate, and the exhaust window is embedded in the first groove; a communicating opening is formed in the groove bottom of the first groove in a penetrating manner and is used for communicating with the mounting cylinder; a second groove is formed in the end, close to the mounting plate, of the mounting cylinder and extends in the axial direction of the mounting cylinder. The mounting frame is connected to the second groove; the mounting frame is used for mounting a fan, and the fan is located in the mounting cylinder. According to the technical scheme provided by the utility model, the problem of troublesome maintenance and replacement of the heat dissipation fan of the Hua-type box transformer substation can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation fans, in particular to a modular heat dissipation fan assembly for a Chinese-style box-type transformer. Background Art

[0002] A box-type transformer (hereinafter referred to as a box-type transformer) is an electrical device that places the transformer, high-voltage switch components and low-voltage switchgear components all in a box. It has the advantages of high integration, easy installation and a wide range of applications. It is widely used in power stations and power load points to step up or down the input power.

[0003] Chinese-style box-type transformers are different from European-style and American-style box-type transformers. Currently, box-type transformers are categorized into American-style, European-style, and Chinese-style. American-style box-type transformers place the transformer, high-voltage load switches, fuses, and other components within the transformer oil tank. Because the components are immersed in oil, their size is significantly reduced, resulting in a more compact American-style box-type transformer. European-style box-type transformers house the transformer and common high-voltage electrical equipment within a metal enclosure with internal compartments, resulting in a larger size. Chinese-style box-type transformer switchgear combines the advantages of both American and European styles, retaining the outer enclosure while placing the transformer oil tank externally. This improves heat dissipation and makes the structure more compact than European-style box-type transformers. This has led to Chinese-style box-type transformers becoming increasingly popular in the market.

[0004] Existing Hua-style box-type transformers typically dissipate heat through fans. In some cases, the fans are installed inside the box, making maintenance and replacement of the fans often require entering the box. This makes maintenance and replacement of the fans very troublesome and also poses a safety hazard. This utility model proposes a modular heat dissipation fan assembly for Hua-style box-type transformers to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a modular heat dissipation fan assembly for a Chinese-style box-type transformer, so as to solve the problem of troublesome maintenance and replacement of the heat dissipation fan of the Chinese-style box-type transformer.

[0006] To achieve the above-mentioned objectives, the modular heat dissipation fan assembly for the Hua-style box transformer proposed in the present invention includes a mounting shell, a mounting bracket, a fan and an exhaust window; the mounting shell is connected to the box body of the Hua-style box transformer; the mounting shell includes a mounting plate and a mounting tube connected to one side of the mounting plate; the central axis of the mounting tube is perpendicular to the plane where the mounting plate is located; the mounting tube can be embedded in the mounting port of the box body of the Hua-style box transformer, and the side of the mounting plate connected to the mounting tube can abut the outer wall of the box body of the Hua-style box transformer; the mounting tube is open at both ends; a first groove is provided in the middle of the mounting plate, and the exhaust window is embedded in the first groove; a connecting port is provided through the bottom of the first groove, and the connecting port is used to connect the mounting tube; a second groove is provided at one end of the mounting tube close to the mounting plate, and the second groove extends along the axial direction of the mounting tube; the mounting bracket is connected to the second groove; the mounting bracket is used to install the fan, and the fan is located in the mounting tube.

[0007] Preferably, the modular heat dissipation fan assembly for the Hua-style box transformer also includes a connecting piece; the connecting piece includes a first connecting piece, a second connecting piece and a third connecting piece; the first connecting piece is used to connect the mounting plate to the box body of the Hua-style box transformer; the second connecting piece is used to connect the exhaust window to the mounting plate; the third connecting piece will be used to connect the mounting frame to the mounting tube.

[0008] Preferably, the mounting plate is penetrated by a plurality of first connecting holes; the first connecting holes are located around the first groove; the number of the first connecting members is multiple, and the first connecting members correspond to the first connecting holes one by one; the first connecting members pass through the corresponding first connecting holes and extend into the box body of the Huashi box-type transformer to connect the mounting plate to the outer wall of the box body of the Huashi box-type transformer.

[0009] Preferably, a ventilation grille is provided in the middle of the exhaust window; a plurality of second connection holes are opened through the exhaust window; the second connection holes are located around the ventilation grille; a plurality of third connection holes are opened at the bottom of the first groove; the number of the second connection holes and the third connection holes is the same and corresponds one to one; when the exhaust window is embedded in the first groove, the second connection hole is opposite to the corresponding third connection hole; the second connecting member is used to extend into the second connection hole and the third connection hole in sequence to connect the exhaust window to the mounting plate.

[0010] Preferably, the mounting frame includes a connecting plate and a plurality of connecting rods symmetrically distributed with the connecting plate as the center; the number of the second grooves is multiple, and the second grooves correspond to the connecting rods one by one; the end of the connecting rod is embedded in the corresponding second groove; a fourth connecting hole is provided through the end of the connecting rod; a fifth connecting hole is provided in the second groove, and the central axis of the fifth connecting hole is parallel to the central axis of the mounting tube; when the end of the connecting rod is embedded in the corresponding second groove, the fourth connecting hole and the fifth connecting hole are opposite to each other; the third connecting member is used to extend into the fourth connecting hole and the fifth connecting hole in sequence to connect the mounting frame to the mounting tube.

[0011] Preferably, the fan is located on a side of the mounting frame away from the mounting plate; the fan comprises a motor and fan blades connected to a rotating shaft of the motor; the motor is fixedly connected to the middle of the connecting plate.

[0012] Preferably, the modular heat dissipation fan assembly for the Chinese-style box-type transformer further includes a protective cover, which is woven from a plurality of metal strips; the protective cover is arranged at one end of the mounting tube away from the mounting plate.

[0013] Preferably, a wire hole is formed through the mounting tube, and the fan is connected to a power source through the wire hole.

[0014] Preferably, the mounting plate is rectangular, and the corners of the mounting plate are all arc corners; the exhaust window is rectangular, and the corners of the exhaust window are all arc corners.

[0015] Preferably, the mounting tube is a cylinder, the communication opening is circular, and the diameter of the communication opening is larger than the inner diameter of the mounting tube, so that the mounting bracket can enter the mounting tube along the second groove.

[0016] In the technical solution of the present invention, the fan is installed in the mounting tube, and the mounting tube can be embedded in the mounting port of the box body of the Chinese-style box transformer. The side of the mounting plate connected to the mounting tube can abut the outer wall of the box body of the Chinese-style box transformer, and the mounting shell is fixedly connected to the box body of the Chinese-style box transformer. Therefore, the mounting shell can be installed and removed from the outside of the box body of the Chinese-style box transformer, so that the modular heat dissipation fan assembly for the Chinese-style box transformer can be maintained and replaced; the exhaust window is embedded in the first groove opened by the mounting plate, and the bottom of the first groove is penetrated by the connecting port, and the second groove is opened in the mounting tube, and the mounting bracket is installed in the second groove, and the fan is installed on the mounting bracket. Therefore, the mounting shell, the exhaust window, the mounting bracket and the fan can be replaced separately, which improves the economy. At the same time, the fan can be installed and removed through the mounting bracket by opening the exhaust window, which is beneficial to the installation and maintenance of the fan. In summary, the modular cooling fan assembly for the Hua-style box-type transformer can install and disassemble the cooling fan from outside the box of the Hua-style box-type transformer, making the maintenance of the cooling fan more convenient, reducing safety hazards and improving economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of a modular heat dissipation fan assembly for a Chinese-style box-type transformer according to the present invention;

[0019] Figure 2 This is a schematic diagram of the connection between the fan and the mounting cylinder of the modular heat dissipation fan assembly for the Chinese-style box-type transformer of the present invention;

[0020] Figure 3 This is a structural schematic diagram of the mounting plate of the modular heat dissipation fan assembly for the Chinese-style box-type transformer of the present invention;

[0021] Figure 4 This is a schematic structural diagram of the exhaust window of the modular heat dissipation fan assembly for the Chinese-style box-type transformer of the present invention;

[0022] Figure 5 This is a schematic structural diagram of the protective cover of the modular heat dissipation fan assembly for the Chinese-style box-type transformer of the present invention.

[0023] Description of Figure Numbers:

[0024] 1-Mounting plate; 11-First slot; 12-Connecting port; 13-First connecting hole; 14-Third connecting hole; 2-Mounting tube; 21-Second slot; 22-Fifth connecting hole; 23-Wire hole; 3-Exhaust window; 31-Ventilation grille; 32-Second connecting hole; 4-Mounting frame; 41-Connecting rod; 42-Connecting plate; 43-Fourth connecting hole; 5-Motor; 6-Fan blades; 7-Protective cover.

[0025] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0029] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0030] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0031] The utility model provides a modular heat dissipation fan assembly for a Chinese-style box-type transformer.

[0032] Please refer to Figures 1 to 5 The modular heat dissipation fan assembly for the Hua-style box transformer includes a mounting shell, a mounting bracket 4, a fan and an exhaust window 3; the mounting shell is connected to the box body of the Hua-style box transformer; the mounting shell includes a mounting plate 1 and a mounting tube 2 connected to one side of the mounting plate 1; the central axis of the mounting tube 2 is perpendicular to the plane where the mounting plate 1 is located; the mounting tube 2 can be embedded in the mounting port of the box body of the Hua-style box transformer, and the side of the mounting plate 1 connected to the mounting tube 2 can abut the outer wall of the box body of the Hua-style box transformer; the mounting tube 2 is open at both ends; a first groove 11 is provided in the middle of the mounting plate 1, and the exhaust window 3 is embedded in the first groove 11; a connecting port 12 is provided at the bottom of the first groove 11, and the connecting port 12 is used to connect the mounting tube 2; a second groove 21 is provided at one end of the mounting tube 2 close to the mounting plate 1, and the second groove 21 extends along the axial direction of the mounting tube 2; the mounting bracket 4 is connected to the second groove 21; the mounting bracket 4 is used to install the fan, and the fan is located in the mounting tube 2.

[0033] In the technical solution of the present invention, the fan is installed in the mounting tube 2, and the mounting tube 2 can be embedded in the mounting port of the box body of the Chinese-style box transformer. The side of the mounting plate 1 connected to the mounting tube 2 can abut the outer wall of the box body of the Chinese-style box transformer. The mounting shell is fixedly connected to the box body of the Chinese-style box transformer. Therefore, the mounting shell can be installed and removed from the outside of the box body of the Chinese-style box transformer, so that the modular heat dissipation fan assembly for the Chinese-style box transformer can be maintained and replaced; the exhaust window 3 is embedded in the first groove 11 opened on the mounting plate 1, and the bottom of the first groove 11 is penetrated by the connecting port 12. The second groove 21 is opened in the mounting tube 2, and the mounting bracket 4 is installed in the second groove 21. The fan is installed on the mounting bracket 4. Therefore, the mounting shell, the exhaust window 3, the mounting bracket 4 and the fan can be replaced separately, which improves the economy. At the same time, the exhaust window 3 can be opened to install and remove the fan through the mounting bracket 4, which is beneficial to the installation and maintenance of the fan. In summary, the modular cooling fan assembly for the Hua-style box-type transformer can install and disassemble the cooling fan from outside the box of the Hua-style box-type transformer, making the maintenance of the cooling fan more convenient, reducing safety hazards and improving economy.

[0034] Specifically, the second grooves 21 are centrally symmetrically distributed about the central axis of the mounting tube 2; there are at least three second grooves 21; and the exhaust window 3 is flush with the side of the mounting plate 1 away from the mounting tube 2. Furthermore, a bracket can be provided inside the housing of the Hua-style box-type transformer, which can abut the bottom of the mounting tube 2 to support the mounting tube 2.

[0035] Preferably, the modular cooling fan assembly for a Hua-style box-type transformer further includes connectors, including a first connector, a second connector, and a third connector. The first connector is used to connect the mounting plate 1 to the box body of the Hua-style box-type transformer; the second connector is used to connect the exhaust window 3 to the mounting plate 1; and the third connector is used to connect the mounting bracket 4 to the mounting tube 2. Specifically, the connectors may be connecting screws or connecting pins.

[0036] Preferably, the mounting plate 1 is provided with a plurality of first connection holes 13; the first connection holes 13 are located around the first groove 11; there are multiple first connecting members, and the first connecting members correspond one-to-one to the first connection holes 13; the first connecting members pass through the corresponding first connection holes and extend into the box body of the Huashi box-type transformer to connect the mounting plate 1 to the outer wall of the box body of the Huashi box-type transformer.

[0037] Specifically, the number of the first connecting members and the number of the first connecting holes 13 are both 4. Furthermore, a plurality of connecting seats corresponding to the first connecting holes 12 are provided in the box body of the Hua-style box-type transformer. The first connecting members 13 sequentially pass through the mounting plate 1 and the box body of the Hua-style box-type transformer and then extend into the connecting seats to enhance the fixing effect of the mounting shell.

[0038] Preferably, a ventilation grille 31 is provided in the middle of the exhaust window 3; a plurality of second connection holes 32 are opened through the exhaust window 3; the second connection holes 32 are located around the ventilation grille 31; a plurality of third connection holes 14 are opened at the bottom of the first groove 11; the number of the second connection holes 32 and the third connection holes 14 is the same, and they correspond one to one; when the exhaust window 3 is embedded in the first groove 11, the second connection hole 32 is opposite to the corresponding third connection hole 14; the second connecting member is used to extend into the second connection hole 32 and the third connection hole 14 in sequence to connect the exhaust window 3 to the mounting plate 1.

[0039] Specifically, the ventilation grille 31 is a closable ventilation grille; the area of ​​the ventilation grille 31 is larger than the area of ​​the connecting port 12 to ensure ventilation and heat dissipation effects; the third connection hole 14 is a blind hole; the number of the second connection hole 32 and the third connection hole 14 are both 4.

[0040] Preferably, the mounting bracket 4 includes a connecting plate 42, and a plurality of connecting rods 41 symmetrically distributed with the connecting plate 42 as the center; the number of the second grooves 21 is multiple, and the second grooves 21 correspond to the connecting rods 41 one by one; the end of the connecting rod 41 is embedded in the corresponding second groove 21; a fourth connecting hole 43 is provided through the end of the connecting rod 41; a fifth connecting hole 22 is provided in the second groove 21, and the central axis of the fifth connecting hole 22 is parallel to the central axis of the mounting tube 2; when the end of the connecting rod 41 is embedded in the corresponding second groove 21, the fourth connecting hole 43 and the fifth connecting hole 22 are opposite to each other; the third connecting member is used to extend into the fourth connecting hole 43 and the fifth connecting hole 22 in sequence to connect the mounting bracket 4 to the mounting tube 2.

[0041] Specifically, the number of the second slot 21, the connecting rod 41, the fourth connecting hole 43, and the fifth connecting hole 22 is four; the fifth connecting hole 22 is a blind hole. Furthermore, the second slot 21 can be a slot formed by a connecting block fixedly connected to the inner wall of the mounting tube 2.

[0042] Preferably, the fan is located on a side of the mounting frame 4 away from the mounting plate 1 ; the fan includes a motor 5 and fan blades 6 connected to the rotating shaft of the motor 5 ; the motor 5 is fixedly connected to the middle of the connecting plate 42 .

[0043] The fan is mounted on a side of the mounting frame 4 away from the mounting plate 1, facilitating external removal of the fan. Specifically, a mounting seat is provided in the middle of the connecting plate 42 for mounting the motor 5. The fan blades 6 are provided in a plurality and are symmetrically distributed about the output shaft of the motor 5.

[0044] Preferably, the modular heat dissipation fan assembly for the Chinese-style box-type transformer further includes a protective cover 7 , which is made of a plurality of metal strips; the protective cover 7 is arranged at one end of the mounting tube 2 away from the mounting plate 1 .

[0045] The protective cover 7 is used to prevent people from directly contacting the fan blades 6 and causing damage. The protective cover 7 has good ventilation. Specifically, the connecting member further includes a fourth connecting member, and the protective cover 7 is connected to the mounting tube 2 through the fourth connecting member.

[0046] Preferably, a wire hole 23 is formed through the mounting tube 2 , and the fan is connected to a power source through the wire hole 23 .

[0047] The power cord is detachably connected to the motor 5 to facilitate external removal of the fan. Specifically, matching connectors can be provided on one end of the power cord and on the motor 5. In this embodiment, the wire hole 23 is provided on the upper portion of the mounting tube 2. Furthermore, the outer wall of the mounting tube 2 is provided with a wire groove or wire clamp to secure the power cord.

[0048] Preferably, the mounting plate 1 is rectangular, and the corners of the mounting plate 1 are all arc corners; the exhaust window 3 is rectangular, and the corners of the exhaust window 3 are all arc corners.

[0049] Specifically, the first slot 11 is rectangular, and the corners of the first slot 11 all coincide with the corner arcs of the exhaust window 3, so that the exhaust window 3 can fit into the first slot 11. In this embodiment, there are four first connection holes 13, each located at the four corners of the mounting plate 2; there are four second connection holes 32 and four third connection holes 14, each located at the four corners of the exhaust window 3, and four third connection holes 14 located at the four corners of the first slot 11.

[0050] Preferably, the mounting tube 2 is a cylinder, the communication opening 12 is circular, and the diameter of the communication opening 12 is larger than the inner diameter of the mounting tube 2 , so that the mounting bracket 4 can enter the mounting tube 2 along the second groove 21 .

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A modular heat dissipation fan assembly for a Chinese-style box-type transformer, characterized in that: The utility model comprises a mounting shell, a mounting frame (4), a fan and an exhaust window (3); the mounting shell is connected to the box body of the Chinese-style box-type transformer; the mounting shell comprises a mounting plate (1), and a mounting tube (2) connected to one side of the mounting plate (1); the central axis of the mounting tube (2) is perpendicular to the plane where the mounting plate (1) is located; the mounting tube (2) can be embedded in the mounting opening of the box body of the Chinese-style box-type transformer, and the side of the mounting plate (1) connected to the mounting tube (2) can abut against the outer wall of the box body of the Chinese-style box-type transformer; the mounting tube (2) is open at both ends; the center of the mounting plate (1 ... A first groove (11) is provided on the bottom of the first groove (11), and the exhaust window (3) is embedded in the first groove (11); a connecting port (12) is provided through the bottom of the first groove (11), and the connecting port (12) is used to connect with the mounting tube (2); a second groove (21) is provided on one end of the mounting tube (2) close to the mounting plate (1), and the second groove (21) extends along the axial direction of the mounting tube (2); the mounting frame (4) is connected to the second groove (21); the mounting frame (4) is used to install the fan, and the fan is located in the mounting tube (2).

2. The modular heat dissipation fan assembly for a Chinese-style box-type transformer according to claim 1 is characterized in that: It also includes connecting pieces; the connecting pieces include a first connecting piece, a second connecting piece, and a third connecting piece; the first connecting piece is used to connect the mounting plate (1) to the box body of the Chinese box transformer; the second connecting piece is used to connect the exhaust window (3) to the mounting plate (1); and the third connecting piece is used to connect the mounting frame (4) to the mounting tube (2).

3. The modular heat dissipation fan assembly for a Chinese-style box-type transformer according to claim 2 is characterized in that: The mounting plate (1) is provided with a plurality of first connection holes (13) extending therethrough; the first connection holes (13) are located around the first groove (11); the number of the first connection members is plural, and the first connection members correspond to the first connection holes (13) one by one; the first connection members pass through the corresponding first connection holes and extend into the box body of the Hua-style box-type transformer, so as to connect the mounting plate (1) to the outer wall of the box body of the Hua-style box-type transformer.

4. The modular heat dissipation fan assembly for a Chinese-style box-type transformer according to claim 2 is characterized in that: A ventilation grille (31) is provided in the middle of the exhaust window (3); a plurality of second connection holes (32) are provided through the exhaust window (3); the second connection holes (32) are located around the ventilation grille (31); a plurality of third connection holes (14) are provided at the bottom of the first groove (11); the number of the second connection holes (32) and the third connection holes (14) are the same and correspond one to one; when the exhaust window (3) is embedded in the first groove (11), the second connection hole (32) is directly opposite to the corresponding third connection hole (14); the second connecting member is used to extend into the second connection hole (32) and the third connection hole (14) in sequence to connect the exhaust window (3) to the mounting plate (1).

5. The modular heat dissipation fan assembly for a Chinese-style box-type transformer according to claim 2 is characterized in that: The mounting frame (4) includes a connecting plate (42) and a plurality of connecting rods (41) symmetrically distributed around the connecting plate (42); the number of the second slots (21) is plural, and the second slots (21) correspond to the connecting rods (41) one by one; the end of the connecting rod (41) is embedded in the corresponding second slot (21); a fourth connecting hole (43) is provided through the end of the connecting rod (41); a fifth connecting hole (22) is provided in the second slot (21), and the central axis of the fifth connecting hole (22) is parallel to the central axis of the mounting tube (2); when the end of the connecting rod (41) is embedded in the corresponding second slot (21), the fourth connecting hole (43) and the fifth connecting hole (22) are opposite to each other; the third connecting member is used to extend into the fourth connecting hole (43) and the fifth connecting hole (22) in sequence to connect the mounting frame (4) to the mounting tube (2).

6. The modular heat dissipation fan assembly for a Chinese-style box-type transformer according to claim 5 is characterized in that: The fan is located on a side of the mounting frame (4) away from the mounting plate (1); the fan comprises a motor (5) and a fan blade (6) connected to a rotating shaft of the motor (5); the motor (5) is fixedly connected to the middle of the connecting plate (42).

7. The modular heat dissipation fan assembly for a Chinese-style box-type transformer according to claim 2 is characterized in that: It also includes a protective cover (7), which is made of a plurality of metal strips; the protective cover (7) is arranged at an end of the mounting tube (2) away from the mounting plate (1).

8. The modular heat dissipation fan assembly for a Chinese-style box-type transformer according to claim 1 is characterized in that: A wire hole (23) is provided through the mounting tube (2), and the fan is connected to a power source through the wire hole (23).

9. The modular heat dissipation fan assembly for a Chinese-style box-type transformer according to claim 1 is characterized in that: The mounting plate (1) is rectangular, and the corners of the mounting plate (1) are all arc corners; the exhaust window (3) is rectangular, and the corners of the exhaust window (3) are all arc corners.

10. The modular heat dissipation fan assembly for a Chinese-style box-type transformer according to claim 9 is characterized in that: The installation cylinder (2) is a cylinder, the communication opening (12) is circular, and the diameter of the communication opening (12) is larger than the inner diameter of the installation cylinder (2), so that the installation frame (4) can enter the installation cylinder (2) along the second groove (21).

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