Transformer cooling fin protection device and transformer
By designing a transformer heat sink protection device with adjustable ventilation holes, the problem of fixed heat dissipation hole size is solved, the heat sink protection and heat dissipation requirements are matched, and the normal operation of the transformer is ensured.
Patent Information
- Application Number
- CN202422730873.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-08
AI Technical Summary
In existing transformer heat sink protection devices, the heat dissipation holes have a fixed size and cannot be adjusted, resulting in a mismatch between the heat dissipation amount and the heat dissipation requirements, thus affecting the normal operation of the transformer.
A transformer heat sink protection device is designed, which includes a fixed frame and a protective cover mechanism, a vent and an adjustment member. By adjusting the opening size of the vent, different heat dissipation requirements can be met and the heat sink is protected from damage.
Effectively protect the heat sink to prevent bumps and debris from entering. At the same time, adjust the size of the vents to ensure the heat dissipation of the heat sink, avoid heat accumulation, and ensure the normal operation of the transformer.
Smart Images
Figure CN223427321U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil-immersed transformers, in particular to a transformer heat sink protection device and a transformer. Background Art
[0002] An oil-immersed transformer uses insulating oil (transformer oil) as a cooling and insulating medium. It operates by generating an alternating current of a certain frequency through the inductor coil, leveraging the inherent electrical resistance of the liquid. Transformer oil is widely used in power transformers due to its excellent insulating properties and low price. Heat sinks are an essential component of oil-immersed transformers, widely applicable to a wide range of three-phase oil-immersed transformers of varying capacities and voltage levels. Heat dissipation is achieved through oil circulation within the heat sinks. Typically, heat sinks are welded to the casing, leaving them exposed. Due to the larger size and weight of the transformer, the heat sinks are also larger and heavier than those of conventional distribution transformers, resulting in larger gaps between them. This makes them susceptible to damage during transportation or use, such as from bumps or bird intrusion.
[0003] At present, a protective cover with heat dissipation holes is usually used to cover the heat sink, but the size of the heat dissipation holes is fixed. When the heat sink cover is set inside, when the power of the transformer is large, the heat dissipation of the heat sink is also large. If the heat dissipation holes of the protective cover are small, the air cannot take away the heat from the heat sink in time, which can easily cause heat accumulation on the heat sink, thereby affecting the normal operation of the transformer. Utility Model Content
[0004] The utility model aims to solve the problem that the current protective cover with heat dissipation holes has a fixed size and cannot be adjusted, and cannot meet the different heat dissipation requirements of the heat sink. A transformer heat sink protection device and a transformer are proposed.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] The utility model provides a transformer heat sink protection device, which is used to be installed on a transformer to cover the heat sink, including a fixed frame, the fixed frame having a mounting member, the mounting member being fixedly connected to the transformer, the fixed frame being connected to a protective cover mechanism, the protective cover mechanism being connected to the fixed frame to form a storage space for accommodating the heat sink, the protective cover mechanism having a vent, the vent communicating with the storage space and the outside, the protective cover mechanism having an adjustment member, the adjustment member being used to adjust at least the opening size of the vent. The device covers the heat sink by providing the fixed frame and the protective cover mechanism, effectively protecting the heat sink and preventing the heat sink from being damaged during transportation or use due to bumps, falling rocks, or other debris entering the device. The protective cover mechanism is provided with a vent and an adjustment member capable of adjusting the opening size of the vent, thereby ensuring heat dissipation of the heat sink while protecting the heat sink. The opening size of the vent is adjusted according to the heat dissipation requirements of the heat sink, effectively preventing heat accumulation from affecting the normal operation of the transformer.
[0007] Furthermore, the protective cover mechanism includes multiple protective cover bodies connected to a fixed frame to enclose a storage space. The protective cover body includes multiple protective sheets, which are evenly spaced along the extension direction of the protective cover body. The gaps between adjacent protective sheets form vents. The protective sheets are hinged to the protective cover body, and an adjustment member is connected to the protective sheet, at least for driving the protective sheet to rotate along a set axis to adjust the gap between adjacent protective sheets. This device hinges multiple protective sheets on the protective cover body, forming vents between adjacent protective sheets, and controls the rotation of the protective sheets via the adjustment member, thereby changing the gap between adjacent protective sheets and adjusting the opening size of the vents. The structure is simple and easy to operate.
[0008] Furthermore, the protective sheet is provided with a hinged shaft, the extension direction of the hinged shaft is consistent with the extension direction of the protective sheet, the protective cover body is provided with a hinged groove, the hinged shaft is hinged with the hinged groove, one end of the hinged shaft is fixedly connected to a driven gear, the adjustment member is provided with a drive shaft, the drive shaft is arranged in the hinged groove, and the extension direction of the drive shaft is perpendicular to the extension direction of the hinged shaft, the drive shaft is fixedly connected to a driving gear, the driving gear is meshed with the driven gear, and the drive shaft is driven by an external force to rotate along its own axis to drive the protective sheet to rotate. By setting the drive shaft and the hinged shaft to mesh through the gear structure, rotating the drive shaft can drive all the protective sheets to rotate, ensuring the consistency of the rotation of multiple protective sheets, thereby ensuring the consistency of the opening sizes of multiple vents, and further ensuring uniform heat dissipation.
[0009] Furthermore, one end of the drive shaft extends to the outside of the protective cover to form an adjustment handle, effectively improving user convenience.
[0010] Furthermore, the adjustment handle is provided with a first protrusion, and the protective cover body is provided with a limiting protrusion. The first protrusion abuts against or separates from the limiting protrusion during the rotation of the adjustment handle to limit the rotation angle of the adjustment handle.
[0011] Furthermore, the protective sheet is provided with a plurality of heat dissipation holes which penetrate the sheet and are evenly distributed in an array on the protective sheet, thereby effectively preventing the protective sheet from being excessively rotated and effectively reminding the user of the usage status of the vent.
[0012] Furthermore, the protective cover body is provided with connecting protrusions at opposite ends, the extending direction of the connecting protrusions being consistent with the extending direction of the protective cover body, the fixing frame is provided with connecting grooves, and at least one side of the fixing frame is provided with a mounting opening, through which the protective cover body can pass. The connecting protrusions are movably connected to the connecting grooves, and the connecting protrusions move along the connecting grooves. By configuring the protective cover body and the fixing frame as a pull-out structure, the installation and removal of the protective cover body are facilitated.
[0013] Furthermore, an elastic block is provided in the connection groove, and the connection protrusion is provided with a slot that cooperates with the elastic block, thereby effectively preventing the protective cover from being separated from the fixed frame due to strong winds and improving the connection strength.
[0014] Furthermore, the mounting member includes a first mounting portion and a second mounting portion connected to each other. The first mounting portion is fixedly connected to the fixing frame, and the second mounting portion is fixedly connected to the transformer. The first mounting portion extends in a direction that intersects the direction of extension of the second mounting portion. This provides support in two directions, thereby improving the connection strength and stability between the fixing frame and the transformer.
[0015] Furthermore, a reinforcing rib is provided between the first mounting portion and the second mounting portion, thereby further improving the structural strength of the mounting member and thus improving the connection stability.
[0016] The utility model also provides a transformer, including the above-mentioned transformer heat sink protection device and a transformer body, the transformer body is provided with a heat dissipation end surface and a heat sink protruding from the heat dissipation end surface, the mounting piece is fixedly connected to the heat dissipation end surface so that the fixing frame and the protective cover mechanism cover the heat sink.
[0017] It can be seen from the above technical solutions that the advantages of the present invention are:
[0018] 1. This device sets the heat sink cover inside by setting a fixed frame and a protective cover mechanism, which effectively protects the heat sink and prevents the heat sink from being damaged during transportation or use due to bumps, falling rocks, or other debris entering. Ventilation holes and adjustment parts that can adjust the opening size of the ventilation holes are set on the protective cover mechanism, which can ensure the heat dissipation of the heat sink while protecting the heat sink. The opening size of the ventilation holes is adjusted according to the heat dissipation requirements of the heat sink, effectively avoiding the problem of heat accumulation affecting the normal operation of the transformer.
[0019] 2. This device hinges multiple protective sheets on the protective cover body, and the gap between two adjacent protective sheets forms a vent. The rotation of the protective sheet is controlled by an adjusting member, so that the gap between the two adjacent protective sheets changes, thereby adjusting the opening size of the vent. The structure is simple and easy to operate. By setting a drive shaft and a hinged shaft to engage with each other through a gear structure, rotating the drive shaft can drive all the protective sheets to rotate, ensuring the consistency of the rotation of multiple protective sheets, thereby ensuring the consistency of the opening size of multiple vents, and thus ensuring uniform heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. 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 these drawings without paying any creative work.
[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the fixed frame and the protective cover mechanism installed with the transformer in one embodiment of the utility model;
[0022] Figure 2 This is a structural diagram of an embodiment of the present invention in which the protective sheet of the protective cover rotates until the vent is opened;
[0023] Figure 3 This is a schematic structural diagram of an embodiment of the present invention in which the protective sheet of the protective cover rotates to close the vent;
[0024] Figure 4 This is a schematic diagram of a partial cross-sectional structure of the connection between the fixed frame and the protective cover body in one embodiment of the utility model;
[0025] Figure 5 This is a top view of the installation of the fixing frame and the protective cover mechanism and the transformer in one embodiment of the utility model;
[0026] Figure 6 It is a structural diagram of a transformer in one embodiment of the utility model.
[0027] Description of main reference numerals:
[0028] 100. Transformer; 110. Heat sink; 120. Heat dissipation end surface; 200. Fixed frame; 210. Mounting member; 211. First mounting portion; 212. Second mounting portion; 213. Reinforcing rib; 220. Connecting groove; 221. Elastic block; 222. Mounting opening; 300. Protective cover mechanism; 310. Ventilation port; 320. Adjusting member; 321. Drive shaft; 322. Active gear; 323. Adjusting handle; 330. Protective cover; 331. Articulated groove; 332. Connecting protrusion; 333. Card slot; 340. Protective sheet; 341. Articulated shaft; 342. Driven gear; 343. Heat dissipation hole. DETAILED DESCRIPTION
[0029] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.
[0030] See also Figure 1-Figure 5 A transformer 100 heat sink 110 protection device is used to be installed on the transformer 100 to cover the heat sink 110, including a fixed frame 200, the fixed frame 200 is provided with a mounting member 210, the mounting member 210 is fixedly connected to the transformer 100, the fixed frame 200 is connected to a protective cover mechanism 300, the protective cover mechanism 300 is connected to the fixed frame 200 to form a storage space for accommodating the heat sink 110, the protective cover mechanism 300 is provided with a vent 310, the vent 310 connects the storage space and the outside world, and the protective cover mechanism 300 is provided with an adjusting member 320, the adjusting member 320 is at least used to adjust the opening size of the vent 310.
[0031] In this embodiment, if Figure 1 、 2As shown in Figures 3 and 3, the transformer 100 is installed on a platform or the ground in a vertical direction, and heat sinks 110 are protruding from the left and right sides or a single side of the transformer 100. The heat sink 110 is a plurality of connected sheet structures, and the overall shape is a rectangular structure. Accordingly, the fixed frame 200 can be a rectangular frame structure, wherein each surface of the fixed frame 200 is a hollow structure, that is, the fixed frame 200 is a rectangular skeleton structure. In addition, the fixed frame 200 can also be a rectangular sheet metal structure. The fixed frame 200 and the transformer 100 are first fixedly connected, and then the protective cover mechanism 300 is connected to the fixed frame 200, wherein the protective cover mechanism 300 can be a hollow rectangular structure, thereby covering the fixed frame 200 as a whole, or it can be a single-piece structure, respectively covering each surface of the fixed frame 200, so that the fixed frame 200 and the protective cover structure enclose a rectangular space, thereby accommodating the heat sink 110. During installation, the fixing frame 200 can be first fixedly connected to the transformer 100 through the mounting member 210, so that the heat sink 110 is formed in the frame, and then the protective cover mechanism 300 is connected to the fixing frame 200, so that the heat sink 110 is covered inside, thereby effectively protecting the heat sink 110. At the same time, a vent 310 is provided on the protective cover, and the vent 310 connects the accommodation space and the outside world. The outside air can contact the heat sink 110 through the vent 310, thereby taking away the heat on the heat sink 110. In addition, the protective cover mechanism 300 The adjusting member 320 on the vent 310 can adjust the size of the vent 310. When the power of the transformer 100 is relatively small and the heat dissipation requirement of the heat sink 110 is relatively small, the adjusting member 320 can be controlled to reduce the opening size of the vent 310, thereby better preventing stones or other debris from entering the heat sink 110 through the vent 310; and when the power of the transformer 100 is relatively large, the heat dissipation requirement of the heat sink 110 is also relatively large. At this time, controlling the adjusting member 320 to increase the opening size of the vent 310 can effectively increase the air intake and improve the heat dissipation of the heat sink 110.
[0032] In the above structure, the heat sink 110 is covered inside by setting a fixed frame 200 and a protective cover mechanism 300 to prevent the heat sink 110 from being directly exposed to the outside, which can effectively protect the heat sink 110 and prevent the heat sink 110 from being damaged during transportation or use due to bumps or falling rocks, other debris entering, etc., thereby improving the protection capability of the heat sink 110. In addition, a vent 310 and an adjustment member 320 for adjusting the opening size of the vent 310 are provided on the protective cover mechanism 300, which can ensure the heat dissipation of the heat sink 110 while protecting the heat sink 110, and can adjust the opening size of the vent 310 according to the heat dissipation requirements of the heat sink 110, which can help the heat sink 110 to dissipate heat immediately, effectively avoiding the problem of heat accumulation affecting the normal operation of the transformer 100.
[0033] In the specific structure of the protective cover, as shown in Figure 2 、 3 4, the protective cover mechanism 300 comprises a plurality of protective cover bodies 330 connected with the fixed frame 200 to enclose the accommodation space, the protective cover bodies 330 comprise a plurality of protective sheets 340 uniformly spaced along the extension direction of the protective cover bodies 330, the gap between the adjacent two protective sheets 340 forms the ventilation opening 310, the protective sheets 340 are hinged with the protective cover bodies 330, the adjusting member 320 is connected with the protective sheets 340, and at least used to drive the protective sheets 340 to rotate along the set axis to adjust the gap between the adjacent two protective sheets 340. The protective sheet 340 is provided with a hinge shaft body 341, the extension direction of the hinge shaft body 341 is consistent with the extension direction of the protective sheet 340, the protective cover body 330 is provided with a hinge groove 331, the hinge shaft body 341 is hinged with the hinge groove 331, one end of the hinge shaft body 341 is fixedly connected with a driven gear 342, the adjusting member 320 is provided with a driving shaft body 321, the driving shaft body 321 is arranged in the hinge groove 331, and the extension direction of the driving shaft body 321 is perpendicular to the extension direction of the hinge shaft body 341, the driving shaft body 321 is fixedly connected with a driving gear 322, the driving gear 322 is meshingly connected with the driven gear 342, and the driving shaft body 321 is driven to rotate along the axial direction thereof by external force to drive the protective sheet 340 to rotate.
[0034] In this embodiment, the fixed frame 200 can be a rectangular frame structure, and each surface of the fixed frame 200 is a hollow structure. The protective cover mechanism 300 includes at least four protective cover bodies 330, and the four protective cover bodies 330 are respectively connected to the front, left, right and upper sides of the corresponding heat sink 110, so as to protect the top, side and front of the heat sink 110. The protective cover body 330 is a rectangular structure. The protective cover body 330 located above the heat sink 110 is placed horizontally, and the protective cover bodies 330 on other surfaces are all placed vertically. Among them, the protective cover body 330 is hinged with a plurality of protective sheets 340, and the protective sheet 340 is a rectangular sheet structure. The extension direction of the protective sheet 340 can be consistent with the width direction of the protective cover body 330. 40 are evenly spaced along the length direction of the protective cover body 330, wherein the gap between two adjacent protective sheets 340 is the vent 310. In addition, a hinge shaft 341 is provided in the middle of both ends of the protective sheet 340 along its length direction, and the hinge shaft 341 extends along the length direction of the protective sheet 340. Accordingly, a hinge groove 331 is provided on the protective cover body 330. During installation, the hinge shaft 341 is inserted into the hinge groove 331, so that the protective sheet 340 is hinged to the protective cover body 330, so that the protective sheet 340 can rotate relative to the protective cover body 330. When the protective sheet 340 rotates, the plane on which the protective sheet 340 is located is tilted, so that the gap between the two adjacent protective sheets 340 increases or decreases, thereby achieving the function of adjusting the size of the vent 310. In addition, when the protection sheets 340 are rotated until the plane where the protection sheets 340 are located is parallel to the protection cover 330 , the plurality of protection sheets 340 can cover the protection cover 330 , so that the vent 310 is closed.
[0035] In addition, the adjusting member 320 includes a driving shaft 321 movably connected to the hinge groove 331 on one side of the protective cover body 330, wherein a plurality of driving gears 322 are connected to the driving shaft 321, and accordingly, a driven gear 342 is connected to one end of the hinge shaft 341 of the protective sheet 340, wherein the driving shaft 321 extends along the length direction of the protective cover body 330, and the number of driving gears 322 is consistent with the number of protective sheets 340, so that the driven gears 342 on the protective sheet 340 are meshed with the driving gear 322 in a one-to-one correspondence, wherein the driving gear 322 and the driven size are a bevel gear structure, so as to realize the rotation of the driving shaft 321 and thereby drive all the protective sheets 340 to rotate accordingly, thereby ensuring the consistency of the opening sizes of the multiple vents 310 and achieving uniform heat dissipation.
[0036] In the above structure, multiple protective sheets 340 are hinged on the protective cover body 330, so that the gap between two adjacent protective sheets 340 forms a vent 310, and the rotation of the protective sheet 340 is controlled by the adjusting member 320, so that the gap between two adjacent protective sheets 340 changes, thereby achieving the function of adjusting the opening size of the vent 310. The structure is simple and easy to operate. In addition, the driving shaft 321 and the hinged shaft 341 are engaged with each other through a gear structure, so that the driving shaft 321 drives the protective sheet 340 to rotate. On the one hand, the gear structure makes the rotation of the protective sheet 340 smoother and more precise. On the other hand, rotating the driving shaft 321 can drive all the protective sheets 340 to rotate, ensuring the consistency of the rotation of the multiple protective sheets 340, thereby ensuring the consistency of the opening size of the multiple vents 310, and then ensuring uniform heat dissipation.
[0037] In addition, one end of the drive shaft 321 extends to the outside of the protective cover 330 to form an adjustment handle 323. The adjustment handle 323 is provided with a first protrusion, and the protective cover 330 is provided with a limiting protrusion. The first protrusion abuts or separates with the limiting protrusion during the rotation of the adjustment handle 323 to limit the rotation angle of the adjustment handle 323.
[0038] In this embodiment, one end of the drive shaft 321 extends to the outside of one side of the protective cover body 330 to form an adjustment handle 323. When in use, the user can drive the rotation of the drive shaft 321 by rotating the adjustment handle 323, which effectively improves the convenience of the user. In addition, a limiting protrusion is provided on the protective shaft, and a first protrusion is provided on the corresponding adjustment handle 323. When the adjustment handle 323 is rotated to a certain angle, the first protrusion and the limiting protrusion abut against each other, thereby limiting the further rotation of the adjustment handle 323, effectively avoiding excessive rotation of the protective sheet 340. For example, when the first protrusion and the limiting protrusion abut against each other, the protective sheet 340 rotates until its plane is parallel to the protective cover body 330, so that the vent 310 is in a closed state, which can effectively remind the user of the usage status of the vent 310.
[0039] More specifically, Figure 2 、 3 As shown, the protective sheet 340 is provided with a plurality of heat dissipation holes 343 extending therethrough, and the plurality of heat dissipation holes 343 are evenly distributed in an array on the protective sheet 340. In this embodiment, the protective sheet 340 may be provided with a plurality of heat dissipation holes 343 to better improve the heat dissipation effect of the heat sink 110, wherein the plurality of heat dissipation holes 343 may be distributed in a rectangular array structure on the protective sheet 340.
[0040] In the connecting structure of the protective cover 330 and the fixed frame 200, opposite ends of the protective cover 330 are provided with connecting protrusions 332, the extending direction of the connecting protrusions 332 is consistent with the extending direction of the protective cover 330, the fixed frame 200 is provided with a connecting groove 220, at least one side of the fixed frame 200 is provided with a mounting opening 222, the protective cover 330 can pass through the mounting opening 222, the connecting protrusions 332 and the connecting groove 220 are movably connected, and the connecting protrusions 332 move along the connecting groove 220. The connecting groove 220 is provided with an elastic clamping block 221, and the connecting protrusions 332 are provided with a clamping groove 333 which is matched with the elastic clamping block 221.
[0041] In the embodiment, as shown in Figure 4 , the protective cover 330 and the fixed frame 200 can adopt a pull-out structure, wherein one end of the fixed frame 200 is provided with a mounting opening 222, the protective cover 330 is installed on the fixed frame 200 along the length direction through the mounting opening 222, by setting the protective cover 330 and the fixed frame 200 as a pull-out structure, the installation and disassembly of the protective cover 330 are facilitated, in addition, the protective cover 330 is provided with connecting protrusions 332 at both ends along the width direction, correspondingly, the fixed frame 200 is provided with connecting grooves 220 on both sides, in the process of installing the protective cover 330 on the fixed frame 200 through the mounting opening 222, the connecting protrusions 332 are matched and inserted with the connecting grooves 220, and along with the insertion of the protective cover 330, the connecting protrusions 332 move to the corresponding positions along the connecting grooves 220, thereby providing the guiding and limiting effects for the protective cover 330, and avoiding the deviation of the protective cover 330 in the installation process.
[0042] In addition, the connecting grooves 220 are provided with elastic clamping blocks 221, and the connecting protrusions 332 are provided with clamping grooves 333, when the protective cover 330 is installed on the fixed frame 200, the elastic clamping blocks 221 are matched and inserted in the clamping grooves 333, thereby locking the movement of the protective cover 330 in the fixed frame 200, thereby effectively preventing the protective cover 330 from being separated from the fixed frame 200 by the strong wind and the like, and improving the connecting strength.
[0043] In the specific structure of the mounting piece 210, as shown in Figure 5 , the mounting piece 210 comprises a first mounting part 211 and a second mounting part 212 which are connected, the first mounting part 211 is fixedly connected with the fixed frame 200, the second mounting part 212 is fixedly connected with the transformer 100, and the extending direction of the first mounting part 211 intersects with the extending direction of the second mounting part 212. The first mounting part 211 and the second mounting part 212 are provided with a reinforcing rib 213 therebetween.
[0044] In this embodiment, the mounting member 210 has an L-shaped structure, wherein the first mounting portion 211 can be connected to the fixed frame 200 by welding or bolts, and the second mounting portion 212 is connected to the transformer 100 by bolts. The use of the L-shaped mounting member 210 is convenient for installation and connection on the one hand, and can provide support force in two directions, thereby improving the connection strength and connection stability between the fixed frame 200 and the transformer 100. In addition, an oblique reinforcement rib 213 is provided between the first mounting portion 211 and the second mounting portion 212 to further improve the structural strength of the mounting member 210, thereby improving the connection stability.
[0045] See also Figure 1 、 6 The present invention also provides a transformer 100, including a transformer 100 heat sink 110 protection device and a transformer 100 body as described above. The transformer 100 body is provided with a heat dissipation end surface and a heat sink 110 protruding from the heat dissipation end surface. The mounting member 210 is fixedly connected to the heat dissipation end surface so that the fixing frame 200 and the protective cover mechanism 300 cover the heat sink 110.
[0046] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A transformer heat sink protection device, used to be installed on a transformer to cover the heat sink, characterized in that: The heat sink comprises a fixed frame, the fixed frame is provided with a mounting member, the mounting member is fixedly connected to the transformer, the fixed frame is connected with a protective cover mechanism, the protective cover mechanism is connected to the fixed frame to form a storage space that can accommodate the heat sink, the protective cover mechanism is provided with a vent, the vent connects the storage space and the outside world, and the protective cover mechanism is provided with an adjustment member, the adjustment member is at least used to adjust the opening size of the vent.
2. A transformer heat sink protection device according to claim 1, characterized in that: The protective cover mechanism includes a plurality of protective cover bodies, which are connected to the fixed frame to enclose the accommodating space. The protective cover body includes a plurality of protective sheets, which are evenly spaced along the extension direction of the protective cover body. The gap between two adjacent protective sheets forms the vent. The protective sheet is hinged to the protective cover body, and the adjusting member is connected to the protective sheet, at least for driving the protective sheet to rotate along a set axis to adjust the gap between two adjacent protective sheets.
3. A transformer heat sink protection device according to claim 2, characterized in that: The protective sheet is provided with a hinge shaft, the extension direction of the hinge shaft is consistent with the extension direction of the protective sheet, the protective cover body is provided with a hinge groove, the hinge shaft is hingedly connected with the hinge groove, one end of the hinge shaft is fixedly connected with a driven gear, the adjusting member is provided with a driving shaft, the driving shaft is arranged in the hinge groove, and the extension direction of the driving shaft is perpendicular to the extension direction of the hinge shaft, the driving shaft is fixedly connected with a driving gear, the driving gear is meshed with the driven gear, and the driving shaft can be driven by external force to rotate along its own axial direction to drive the protective sheet to rotate.
4. A transformer heat sink protection device according to claim 3, characterized in that: One end of the driving shaft extends to the outside of the protective cover to form an adjustment handle; And / or, the adjustment handle is provided with a first protrusion, and the protective cover body is provided with a limiting protrusion, and the first protrusion abuts against or separates from the limiting protrusion during the rotation of the adjustment handle to limit the rotation angle of the adjustment handle.
5. The transformer heat sink protection device according to claim 3, characterized in that: The protection sheet is provided with a plurality of heat dissipation holes which penetrate the protection sheet, and the plurality of heat dissipation holes are evenly distributed on the protection sheet in an array.
6. The transformer heat sink protection device according to claim 3, characterized in that: The protective cover body is provided with connecting protrusions at both opposite ends, and the extension direction of the connecting protrusions is consistent with the extension direction of the protective cover body. The fixing frame is provided with a connecting groove, and at least one side of the fixing frame is provided with an installation opening. The protective cover body can pass through the installation opening, and the connecting protrusions are movably connected to the connecting grooves, and the connecting protrusions move along the connecting grooves.
7. A transformer heat sink protection device according to claim 6, characterized in that: An elastic block is provided in the connecting groove, and a clamping slot is provided on the connecting protrusion to cooperate with the elastic block.
8. The transformer heat sink protection device according to claim 1, characterized in that: The mounting member includes a first mounting portion and a second mounting portion connected to each other, the first mounting portion is fixedly connected to the fixing frame, the second mounting portion is fixedly connected to the transformer, and an extension direction of the first mounting portion intersects with an extension direction of the second mounting portion.
9. The transformer heat sink protection device according to claim 8, characterized in that: A reinforcing rib is provided between the first mounting portion and the second mounting portion.
10. A transformer, characterized in that: It comprises a transformer heat sink protection device and a transformer body as described in any one of claims 1 to 9, wherein the transformer body is provided with a heat dissipation end surface and a heat sink protruding from the heat dissipation end surface, and the mounting member is fixedly connected to the heat dissipation end surface so that the fixing frame and the protective cover mechanism cover the heat sink.