Transformer cooling mechanism

Abstract

The utility model provides a transformer cooling mechanism, which relates to the technical field of transformers, and comprises a transformer box body, the front side of the transformer box body is rotatably provided with a transformer box door; a heat dissipation piece is fixedly mounted on the rear side of the transformer box body; a butt joint guide column of a cylindrical structure is fixedly installed at the rear end of the left side of the heat dissipation piece. And a butt joint lead screw is rotationally mounted at the rear end of the right side of the heat dissipation piece. After the filter screen plate is detached, the limiting push cylinder and the lubricating ball do not limit the cooling fan body any more, a worker can directly take down the cooling fan body by detaching the sliding frame, the cooling fan body can be conveniently cleaned or replaced, the design combines the detaching steps of the cooling fan body and the filter screen plate together, the convenience of cleaning and replacing is improved, and the working efficiency is improved. The problem that the filter screen and the fan blades are relatively tedious and difficult to disassemble in actual operation due to the fact that most of the filter screen and the fan blades are firmly fixed to the installation positions of the filter screen and the fan blades is solved.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to a transformer cooling mechanism. Background Technology

[0002] Currently, transformers installed in cabinets generally adopt two cooling methods: self-cooling and air cooling. Self-cooling is mainly suitable for transformers with low heat generation, which can dissipate heat naturally without the need for additional auxiliary equipment. For transformers with high heat generation, air cooling is usually used, which uses auxiliary equipment such as fans to force heat dissipation to ensure stable operation of the transformer.

[0003] In order to prevent dust from entering the transformer cabinet through the cooling channels and potentially adversely affecting the transformer performance, existing air-cooled transformer cooling mechanisms are usually equipped with filters to filter the circulating air. However, as the usage time accumulates, these filters and the fan blades associated with the cooling mechanism will need to be disassembled regularly for cleaning and maintenance due to dust accumulation. However, since the filters and fan blades are mostly firmly fixed in their installation positions, the disassembly process in actual operation is relatively cumbersome and difficult. Summary of the Invention

[0004] This disclosure relates to a transformer cooling mechanism, which uses a drive motor to rotate a cooling fan, thereby rapidly circulating the gas inside the transformer tank and cooling the transformer installed inside the tank.

[0005] In a first aspect, this disclosure provides a transformer cooling mechanism, specifically comprising: a transformer housing, a transformer housing door rotatably mounted on the front side of the transformer housing; a heat sink fixedly mounted on the rear side of the transformer housing; a cylindrical connecting guide post fixedly mounted on the left rear end of the heat sink; a connecting screw rotatably mounted on the right rear end of the heat sink; a support member fixedly mounted on the front interior of the heat sink; a drive motor fixedly mounted on the top of the support member; a cooling fan mounted on the output shaft of the drive motor via a spline; a disassembly slide frame slidably mounted inside the heat sink; limit plates slidably inserted into the upper and lower ends of the disassembly slide frame; embedded baffles fixedly mounted on the left and right sides of the limit plates; a filter screen plate clamped inside the disassembly slide frame; limit slots formed at the center of the upper and lower sides of the filter screen plate; pressing grooves formed on the upper and lower sides of the interior of the heat sink; and a loosening groove formed at the rear end of the pressing groove.

[0006] In at least some embodiments,

[0007] The left side of the disassembly slide frame is slidably connected to the docking guide post; the right side of the disassembly slide frame is connected to the docking screw via threads.

[0008] In at least some embodiments,

[0009] One end of the restoring spring is embedded in the outer side of the mounting baffle; the other end of the restoring spring is embedded in the inner outer side of the disassembly slide frame.

[0010] In at least some embodiments,

[0011] A cylindrical limiting push cylinder is fixedly installed at the center of the front side of the filter screen; a lubricating ball bearing is rotatably installed on the front side of the limiting push cylinder.

[0012] In at least some embodiments,

[0013] The outer wall of the lubricating ball is also in contact with the rear side of the cooling fan body; the front side of the loosening groove has an inclined structure.

[0014] In at least some embodiments,

[0015] When the outer end of the limiting insert is located inside the pressing groove, the inner end of the limiting insert should be inserted into the limiting slot.

[0016] In at least some embodiments,

[0017] When the outer end of the limiting insert is inside the loosening groove, the inner end of the limiting insert should disengage from the inside of the limiting slot.

[0018] This utility model provides a transformer cooling mechanism, which has the following beneficial effects:

[0019] 1. By manually rotating the connecting screw, the inner end of the limiting plate can be disengaged from the limiting slot, thereby releasing the filter screen from its fixation. This makes it easier for workers to disassemble the filter screen. Compared with the traditional threaded fixing method, the disassembly method of this utility model is more convenient and efficient.

[0020] 2. After the filter screen is removed, the limiting push cylinder and lubrication ball will no longer restrict the cooling fan body. The staff can directly remove the cooling fan body by disassembling the sliding frame, which is convenient for cleaning or replacement. This design combines the disassembly steps of the cooling fan body and the filter screen, improving the convenience of cleaning and replacement. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0022] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0023] In the attached diagram:

[0024] Figure 1 A schematic diagram of the overall structure of this application is shown;

[0025] Figure 2 This application shows Figure 1 A schematic diagram of the structure from the rear side view;

[0026] Figure 3 A schematic diagram of a half-section of the heat sink component of this application is shown;

[0027] Figure 4 This application shows Figure 3 Enlarged structural diagram of section A;

[0028] Figure 5 This application shows Figure 3 Enlarged structural diagram of section B;

[0029] Figure 6 This paper shows a schematic diagram of the disassembly slider in the disassembled state structure of this application;

[0030] List of reference numerals

[0031] 1. Transformer enclosure; 2. Transformer enclosure door; 3. Heat sink; 4. Connecting guide post; 5. Connecting lead screw; 6. Support component; 7. Drive motor; 8. Cooling fan body; 9. Disassembly slide frame;

[0032] 10. Limiting insert plate; 11. Embedded baffle; 12. Restoring spring; 13. Filter screen; 14. Limiting slot; 15. Limiting push cylinder; 16. Lubricating ball; 17. Pressing groove; 18. Loosening groove. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] Please refer to Figures 1 to 6 :

[0035] Example 1:

[0036] This utility model proposes a transformer cooling mechanism, comprising: a transformer housing 1, a transformer housing door 2 rotatably mounted on the front side of the transformer housing 1; a heat sink 3 fixedly mounted on the rear side of the transformer housing 1; a cylindrical connecting guide post 4 fixedly mounted on the left rear end of the heat sink 3; a connecting screw 5 rotatably mounted on the right rear end of the heat sink 3; a support member 6 fixedly mounted on the front side inside the heat sink 3; a drive motor 7 fixedly mounted on the top of the support member 6; a cooling fan 8 mounted on the output shaft of the drive motor 7 via a spline; a disassembly slide frame 9 slidably mounted inside the heat sink 3; limit plates 10 slidably inserted into the upper and lower ends of the disassembly slide frame 9; embedded baffles 11 fixedly mounted on the left and right sides of the limit plates 10; a filter screen 13 clamped inside the disassembly slide frame 9; limit slots 14 are provided at the center positions of the upper and lower sides of the filter screen 13; pressing grooves 17 are provided on the upper and lower sides of the heat sink 3; and a loosening groove 18 is provided at the rear end of the pressing grooves 17.

[0037] By starting the drive motor 7, the drive motor 7 drives the cooling fan 8 to rotate, accelerating the gas circulation inside the transformer tank 1, thereby achieving air cooling for the transformer.

[0038] In Example 2, based on Example 1, the left side of the disassembly slide frame 9 is slidably connected to the docking guide post 4; the right side of the disassembly slide frame 9 is connected to the docking screw 5 via threads; one end of the restoring spring 12 is embedded and installed on the outer side of the mounting baffle 11; the other end of the restoring spring 12 is embedded and installed on the inner outer side of the disassembly slide frame 9; a cylindrical limiting push cylinder 15 is fixedly installed at the center of the front side of the filter screen plate 13; a lubricating ball bearing 16 is rotatably installed on the front side of the limiting push cylinder 15.

[0039] When too much dust accumulates on the cooling fan body 8 and the filter plate 13, the operator can manually rotate the connecting screw 5 to move the disassembly slide frame 9 and the filter plate 13 backward. During this process, the outer end of the limiting insert plate 10 will slide from the pressing groove 17 into the loosening groove 18 and move outward under the action of the return spring 12, so that the inner end of the limiting insert plate 10 will disengage from the limiting slot 14, thereby releasing the fixation of the filter plate 13 and making it easy for the operator to disassemble the filter plate 13.

[0040] In Example 3, based on Example 2, the outer wall of the lubricating ball 16 is also in contact with the rear side of the cooling fan body 8; the front side of the loosening groove 18 has an inclined structure; when the outer end of the limiting plate 10 is inside the pressing groove 17, the inner end of the limiting plate 10 should be inserted into the inside of the limiting slot 14; when the outer end of the limiting plate 10 is inside the loosening groove 18, the inner end of the limiting plate 10 should be disengaged from the inside of the limiting slot 14.

[0041] After cleaning or replacement, the operator can first install the new cooling fan body 8 on the output shaft of the drive motor 7, then insert the new filter screen 13 into the disassembly slide frame 9. Next, reverse the connecting screw 5 to control the disassembly slide frame 9 and the installed filter screen 13 to move forward. During the movement, the outer end of the limiting insert plate 10 will slide from the loosening groove 18 into the pressing groove 17 and move inward to insert into the limiting slot 14, thereby fixing the filter screen 13. At the same time, when the filter screen 13 continues to move forward, the limiting push cylinder 15 and the lubricating ball 16 will contact the rear side of the installed cooling fan body 8, cooperating with the output shaft to position the cooling fan body 8, thereby ensuring that the cooling mechanism can be used normally.

[0042] The working principle of this embodiment:

[0043] In use, the drive motor 7 is started, causing the cooling fan 8 to rotate. This rapid rotation of the cooling fan 8 quickly circulates the air inside the transformer housing 1, providing air cooling for the transformer installed inside. When excessive dust adheres to the cooling fan 8 and the filter screen 13, the connecting screw 5 is manually rotated. This rotation causes the disassembly slide frame 9 and the filter screen 13 to move backward. During this movement, the outer end of the limiting insert 10 slides from the pressing groove 17 into the loosening groove 18, allowing the limiting insert 10 to move outward under the action of the return spring 12. This causes the inner end of the limiting insert 10 to disengage from the limiting slot 14, leaving the filter screen 13 unsecured. This facilitates the removal of the filter screen 13 from the disassembly slide frame 9. After disassembly, the limiting push cylinder 15 and the lubricating ball 16 release their limiting effect on the cooling fan 8. Workers can directly pass through the disassembly slide frame 9 to remove the cooling fan body 8 that lacks fixation. After cleaning or replacement, the new cooling fan body 8 is first installed on the output shaft of the drive motor 7, and then the new filter screen 13 is inserted into the disassembly slide frame 9. Then, the connecting screw 5 is reversed to control the disassembly slide frame 9 and the installed filter screen 13 to move forward. During the movement, the outer end of the limiting insert plate 10 will slide from the inside of the loosening groove 18 into the inside of the pressing groove 17. At this time, the limiting insert plate 10 will move inward, so that the limiting insert plate 10 is inserted into the inside of the limiting slot 14, so that the filter screen 13 is positioned inside the disassembly slide frame 9. When the filter screen 13 continues to move forward, the limiting push cylinder 15 and the lubricating ball 16 contact the rear side of the installed cooling fan body 8, and cooperate with the output shaft to achieve the positioning of the cooling fan body 8, thereby facilitating the normal use of this cooling mechanism.

[0044] The following points should be noted in this article:

[0045] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0046] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0047] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A transformer cooling mechanism, comprising: A transformer housing (1) is provided, with a transformer door (2) rotatably mounted on the front side of the housing; a heat sink (3) is fixedly mounted on the rear side of the housing; characterized in that a cylindrical docking guide post (4) is fixedly mounted on the left rear end of the heat sink (3); a docking screw (5) is rotatably mounted on the right rear end of the heat sink (3); a support member (6) is fixedly mounted on the front side inside the heat sink (3); a drive motor (7) is fixedly mounted on the top of the support member (6); and a spline is mounted on the output shaft of the drive motor (7). Cooling fan body (8); a disassembly slide frame (9) is slidably installed inside the heat sink (3); a limiting plate (10) is slidably installed at the upper and lower ends inside the disassembly slide frame (9); a mounting baffle (11) is fixedly installed on the left and right sides of the limiting plate (10); a filter screen plate (13) is snapped into the disassembly slide frame (9); a limiting slot (14) is opened at the center position of the upper and lower sides of the filter screen plate (13); a pressing groove (17) is opened on the upper and lower sides inside the heat sink (3); a loosening groove (18) is also opened at the rear end of the pressing groove (17).

2. The transformer cooling mechanism according to claim 1, characterized in that, The left side of the disassembly slide frame (9) is slidably connected to the docking guide post (4); the right side of the disassembly slide frame (9) is connected to the docking screw (5) through threads.

3. A transformer cooling mechanism according to claim 2, characterized in that, One end of the restoring spring (12) is embedded in the outer side of the mounting baffle (11); the other end of the restoring spring (12) is embedded in the inner outer side of the disassembly slide frame (9).

4. A transformer cooling mechanism according to claim 3, characterized in that, A cylindrical limiting push cylinder (15) is fixedly installed at the center of the front side of the filter screen (13); a lubricating ball bearing (16) is rotatably installed on the front side of the limiting push cylinder (15).

5. A transformer cooling mechanism according to claim 4, characterized in that, The outer wall of the lubricating ball (16) is also in contact with the rear side of the cooling fan body (8); the front side of the loosening groove (18) has an inclined structure.

6. A transformer cooling mechanism according to claim 5, characterized in that, When the outer end of the limiting insert (10) is located inside the pressing groove (17), the inner end of the limiting insert (10) should be inserted into the limiting slot (14).

7. A transformer cooling mechanism according to claim 6, characterized in that, When the outer end of the limiting insert (10) is inside the loosening groove (18), the inner end of the limiting insert (10) should disengage from the inside of the limiting slot (14).

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