Transformer cooling fan structure
By combining the static and dynamic insertion parts with the hollow design and pull-out slide rail structure, the problems of complex installation and insufficient waterproof performance of dry-type transformer fans are solved, enabling quick disassembly and maintenance of the fans, facilitating repairs, and improving the reliability and waterproof performance of the equipment.
Patent Information
- Application Number
- CN202511231401.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-31
- Publication Date
- 2025-11-11
AI Technical Summary
The existing dry-type transformer fan has a complex installation structure, is inconvenient to maintain, and has insufficient waterproof performance, making it prone to water seepage and failure in humid environments.
The device adopts a quick-release structure for the casing and the fan. Through the cooperation of the stationary and moving parts, the fan and the casing can be quickly connected to the circuit and disassembled. Combined with the hollow design and pull-out slide rail structure, the maintenance process is simplified.
It enables rapid disassembly and maintenance of the fan, facilitates repairs, improves equipment reliability and waterproof performance, and simplifies the maintenance process.
Smart Images

Figure CN120933028A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of dry-type transformer technology, and in particular to a transformer cooling fan structure. Background Technology
[0002] In existing technologies, traditional dry-type transformer fans use a fixed installation structure, requiring the disassembly of external components when replacing the fan, which is complex and time-consuming. Furthermore, existing transformer cooling fans lack sufficient waterproofing, making them prone to water leakage and malfunctions in humid environments. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to provide a transformer cooling fan structure that enables quick assembly and disassembly of the casing and the fan, greatly facilitating the maintenance and replacement of the cooling fan; the structure is simple and easy to repair and maintain.
[0004] To solve the above-mentioned technical problems, the present invention provides a transformer cooling fan structure, including: a housing and a fan. The housing includes: a housing body and a stationary insertion part connected to one end of the housing body. The housing body is a hollow cavity structure formed by a top plate, side plates and a bottom plate, and the housing body is provided with an insertion port. The fan includes: a bottom slide rail, a fan body mounted on the bottom slide rail, a front end cover connected to one end of the bottom slide rail and a rear end cover connected to the opposite end of the bottom slide rail. The rear end cover is provided with a movable insertion part. The rear end cover of the fan is inserted into the hollow cavity of the housing body through the insertion port. The bottom slide rail slides along the bottom plate of the housing body. The movable insertion part on the rear end cover is inserted into the stationary insertion part of the housing for quick circuit connection. The fan is fastened to the housing, and the front end cover is kept flush with the insertion port and kept on the same plane.
[0005] The main body of the casing is in the shape of a cubic box, with cutouts on the top, side, and bottom plates.
[0006] The stationary insertion part includes a stationary plug; the cross-sectional shape of the stationary insertion part is the same as the cross-sectional shape of the main body of the casing, and the top and side surfaces of the stationary insertion part are provided with hollows.
[0007] The base plate of the main body of the casing is equipped with a mounting bracket for assembly and connection.
[0008] The front cover and the rear cover are plate-shaped, and the front cover is equipped with a locking handle.
[0009] The rear end cover and the front end cover are designed to be parallel, and the movable insertion part on the rear end cover is a fastening cavity structure.
[0010] The main body of the fan is cubic in shape, with the front and rear covers located on opposite sides of the main body. The bottom slide rail, together with the main body of the fan, is housed in the hollow cavity of the main body of the casing.
[0011] The bottom slide rail of the fan is slidably connected to the bottom plate of the main body of the casing through a matching pull-out slide rail structure.
[0012] The transformer cooling fan structure of the present invention has the following beneficial effects: The transformer cooling fan structure includes: a housing and a fan. The housing includes: a housing body and a stationary insertion portion connected to one end of the housing body. The housing body is a hollow cavity structure formed by a top plate, side plates, and a bottom plate. The housing body is provided with an insertion port. The fan includes: a bottom slide rail, a fan body mounted on the bottom slide rail, a front end cover connected to one end of the fan body, and a rear end cover connected to the opposite end of the fan body. The rear cover has a movable insertion part, wherein: one end of the rear cover of the fan is inserted into the hollow cavity of the main body of the casing through the insertion port, the bottom slide rail slides along the bottom plate of the main body of the casing, and the movable insertion part on the rear cover is inserted into the stationary insertion part of the main body of the casing for quick connection of the circuit; the fan is fastened to the casing, and the front cover is kept flush with the insertion port and kept on the same plane, which can realize quick disassembly and assembly of the casing and the fan, providing great convenience for the maintenance and replacement of the cooling fan; the structure is simple and easy to repair and maintain. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the casing of the transformer cooling fan according to an embodiment of the present invention.
[0015] Figure 2 This is a schematic diagram of the structure of the transformer cooling fan according to an embodiment of the present invention.
[0016] Figure 3 This is a schematic diagram of the structure of the transformer cooling fan in an embodiment of the present invention, in which the fan is inserted into the hollow cavity of the main body of the casing.
[0017] Figure 4 This is a schematic diagram of the structure of the transformer cooling fan after assembly according to an embodiment of the present invention. Detailed Implementation
[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0019] like Figures 1-4 The image shows an embodiment of the transformer cooling fan structure of the present invention.
[0020] The transformer cooling fan structure in this embodiment of the invention includes: a housing 1 and a fan 2. The housing 1 includes: a housing body 11 and a stationary insertion part 12 connected to one end of the housing body 11. The housing body 11 is a hollow cavity structure formed by a top plate 111, a side plate 112 and a bottom plate 113. The housing body 11 is provided with an insertion port 114 for inserting the fan 2. The hollow cavity of the housing body 11 can accommodate the insertion and sliding of various components.
[0021] The fan 2 includes: a bottom slide rail 21, a fan body 22 mounted on the bottom slide rail 21, a front end cover 23 connected to one end of the bottom slide rail 21 and a rear end cover 24 connected to the opposite end of the bottom slide rail 21, and the rear end cover 24 is provided with a movable insertion part 241.
[0022] Wherein: one end of the rear end cover 24 of the fan 2 is inserted into the hollow cavity T of the main body 11 of the housing through the insertion port 114, the bottom slide rail 21 slides along the bottom plate 113 of the main body 11 of the housing, and the movable insertion part 241 on the rear end cover 24 is inserted into the stationary insertion part 12 of the housing 1; the fan 2 is fastened to the housing 1, and the front end cover 23 is kept flush with the insertion port 114 and kept on the same plane.
[0023] In practical implementation, the housing 1 can be assembled on the outside of the transformer coil to realize the function of the transformer cooling fan. The housing 1 includes: a housing body 11 and a stationary insertion part 12, wherein: the housing body 11 is in the shape of a cubic box, and the top plate 111, side plate 112 and bottom plate 113 of the housing body 11 are respectively provided with hollowed-out parts. In this embodiment, the bottom plate 113 is provided with a guide groove structure, which is used in conjunction with the fan 2 to realize the pull-out function.
[0024] The hollow structure enables the ventilation function of the fan 2, and the remaining solid parts of the top plate 111, side plate 112 and bottom plate 113 can meet the functions of limiting and supporting strength.
[0025] Furthermore, the stationary insertion part 12 is connected to the tail end of the housing body 11. The cross-sectional shape of the stationary insertion part 12 is the same as that of the housing body 11, and the top and side surfaces of the stationary insertion part 12 are provided with hollowed-out sections. In this embodiment, the stationary insertion part 12 includes a stationary plug 121. By setting the stationary insertion part 12, the secondary assembly of the housing 1 and the fan 2 is realized. On the one hand, the circuit is connected, enabling the fan to work normally and ensuring the safe and stable heat dissipation of the electrical components inside the transformer. On the other hand, the assembly between the two is made more stable.
[0026] Preferably, a mounting bracket 1131 can be provided on the base plate 113 of the main body 11 of the housing. The function of the mounting bracket 1131 is to realize the assembly and connection of the transformer cooling fan. In this embodiment, four mounting brackets 1131 are provided in a ring frame shape. By adding four mounting brackets 1131, it is convenient to move the main body 11 of the housing, and it can also realize the support function.
[0027] Furthermore, the fan 2 includes: a bottom slide rail 21, a fan body 22, a front cover 23, and a rear cover 24, with a movable insertion part 241 provided on the rear cover 24. The bottom slide rail 21 of the fan 2 is slidably connected to the bottom plate 113 of the main body 11 of the casing through a suitable pull-out slide rail structure.
[0028] In practice, the main body 22 of the fan is cubic in shape, with the front cover 23 and the rear cover 24 located on opposite sides of the main body 22. The front cover 23 and the rear cover 24 are plate-shaped, and the front cover 23 is provided with a locking handle 231. The rear cover 24 is parallel to the front cover 23, and the movable insertion part 241 on the rear cover 24 is a fastening cavity structure. The shape of the fastening cavity is adapted to the shape of the stationary insertion part 12 and the stationary plug 121.
[0029] By setting up an adapter structure for the moving plug 241 and the stationary plug 121, the circuit can be quickly switched on and off, avoiding the risk of live operation.
[0030] By setting the front cover 23 and the rear cover 24, a sealed connection is achieved between the two opposite ends of the fan 2 and the casing 1, which can effectively block moisture and has a certain anti-splash function.
[0031] Understandably, the dimensions of the housing 1 are designed based on the dimensions of the fan body 22, taking into account the volume occupied by the moving insert 241, the stationary insert 12, the front cover 23, and the rear cover 24, to ensure the stability of the fan 2 after it is connected to the housing 1. In other words, after assembly, the bottom slide rail 21, together with the fan body 22, can be completely accommodated in the hollow cavity of the housing body 11.
[0032] Preferably, the locking handle 231 is used to further enhance the protective performance of the fan 2 and has a certain waterproof protection effect. The front cover 23 and the locking handle 231 are fastened together by screws. The locking handle 231 makes it easy to insert the fan 2 into the housing 1 and also makes it easy to pull out the fan 2 when it needs to be replaced.
[0033] In the specific implementation of the transformer cooling fan structure in this embodiment of the invention, one end of the rear end cover 24 of the fan 2 is inserted into the hollow cavity T of the housing body 11 through the insertion port 114. The bottom slide rail 21 slides along the bottom plate 113 of the housing body 11, and the fan 2 is fastened to the housing 1. After insertion, the fan 2 is fixed in the housing 1. At this time, the movable insertion part 241 on the rear end cover 24 is inserted into the stationary insertion part 12 of the housing 1, and the front end cover 23 remains flush with the insertion port 114 and on the same plane. The fan works normally, ensuring safe and stable heat dissipation of the internal electrical components of the transformer.
[0034] When it is necessary to replace the fan 2, simply open the latch of the latch handle 231, release the lock between the moving plug 241 and the stationary plug 121, and pull the latch handle 231 to pull out the fan for maintenance or replacement. This structural design eliminates the need to disassemble the external components of the fan 2, enabling modular replacement and saving maintenance time. It significantly improves the convenience and reliability of transformer use, and has broad application prospects.
[0035] The transformer cooling fan structure in this embodiment has the following beneficial effects: The transformer cooling fan structure includes: a housing and a fan. The housing includes: a housing body and a stationary insertion part connected to one end of the housing body. The housing body is a hollow cavity structure formed by a top plate, side plates, and a bottom plate. The housing body is provided with an insertion port. The fan includes: a bottom slide rail, a fan body mounted on the bottom slide rail, a front end cover connected to one end of the fan body, and a front end cover connected to the opposite end of the fan body. The rear end cover of the fan has a movable insertion part. One end of the rear end cover is inserted into the hollow cavity of the main body of the casing through the insertion port. The bottom slide rail slides along the bottom plate of the main body of the casing. The movable insertion part on the rear end cover is inserted into the stationary insertion part of the main body of the casing to quickly connect the circuit. The fan is fastened to the casing. The front end cover is kept flush with the insertion port and kept on the same plane, which can realize the quick assembly and disassembly of the casing and the fan, and provides great convenience for the maintenance and replacement of the cooling fan. The structure is simple and easy to repair and maintain.
Claims
1. A transformer cooling fan structure, characterized in that, include: The housing and the fan, wherein the housing includes: a housing body and a stationary insertion part connected to one end of the housing body, the housing body being a hollow cavity structure formed by a top plate, a side plate and a bottom plate, and the housing body being provided with an insertion port; The fan includes: a bottom slide rail, a fan body mounted on the bottom slide rail, a front end cover connected to one end of the bottom slide rail, and a rear end cover connected to the opposite end of the bottom slide rail. The rear end cover is provided with a movable insertion part, wherein: One end of the rear end cover of the fan is inserted into the hollow cavity of the main body of the housing through the insertion port. The bottom slide rail slides along the bottom plate of the main body of the housing. The movable insertion part on the rear end cover is inserted into the stationary insertion part of the housing to quickly connect the circuit. The fan is fastened to the housing, and the front cover is kept flush with the insertion port and on the same plane.
2. The transformer cooling fan structure as described in claim 1, characterized in that, The main body of the casing is in the shape of a cubic box, and the top plate, side plate and bottom plate of the main body of the casing are respectively provided with hollowed-out sections.
3. The transformer cooling fan structure as described in claim 2, characterized in that, The stationary insertion part includes a stationary plug; the cross-sectional shape of the stationary insertion part is the same as the cross-sectional shape of the main body of the housing, and the top and side surfaces of the stationary insertion part are provided with hollows.
4. The transformer cooling fan structure as described in claim 1, characterized in that, The base plate of the main body of the housing is provided with a mounting bracket for assembly and connection.
5. The transformer cooling fan structure as described in claim 1, characterized in that, The front cover and the rear cover are both plate-shaped, and the front cover is provided with a locking handle.
6. The transformer cooling fan structure as described in claim 5, characterized in that, The rear end cover and the front end cover are parallel, and the movable insertion part on the rear end cover is a fastening cavity structure.
7. The transformer cooling fan structure as described in claim 1, characterized in that, The main body of the fan is cubic in shape, and the front end cover and the rear end cover are located on opposite sides of the main body of the fan. The bottom slide rail, together with the main body of the fan, is housed in the hollow cavity of the main body of the casing.
8. The transformer cooling fan structure as described in claim 1, characterized in that, The bottom slide rail of the fan is slidably connected to the bottom plate of the main body of the casing through a suitable pull-out slide rail structure.