Heat dissipation base of transformer

By incorporating a sliding pull-out component and a rotating locking component into the transformer heat sink base, the axial fan can be easily disassembled. The dust filter and brush strip structure facilitates dust cleaning, solving the problems of inconvenient maintenance of axial fans and difficulty in cleaning dust filters, thus improving maintenance efficiency.

CN223566392UActive Publication Date: 2025-11-18POWEREX NEW ENERGY TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422940230.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-11-18
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

The axial fan in the existing transformer heat sink is inconvenient to remove for maintenance and the dust filter is difficult to clean, resulting in time-consuming and labor-intensive maintenance.

Method used

The design incorporates a sliding pull-out component and a rotating locking component, allowing for easy disassembly of the axial fan through the cooperation of the pressing and locking posts. Additionally, a dust filter and brush strip structure facilitate dust interception and cleaning.

Benefits of technology

It enables convenient maintenance of axial fans and easy cleaning of dust filters, improves the usability and maintenance efficiency of the heat sink base, and saves manpower.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223566392U_ABST
    Figure CN223566392U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of transformer bases, and discloses a heat dissipation base of a transformer, which comprises a mounting seat, and a plurality of air outlets are arranged at the top of the mounting seat. A plurality of extraction pieces of axial flow fans are arranged in the mounting seat, so that a pressing column can drive a displacement piece to move backwards when the pressing column is pressed backwards; at the moment, the locking column retracts into the drawing piece from the interior of the locking hole of the first locking piece, then the first locking piece is rotated to enable the notch to be aligned with the drawing piece, the first locking piece does not block the drawing piece any more, at the moment, the first locking piece drives the connecting rod to enable the second locking piece to rotate out of the interior of the clamping hole, and then the drawing piece can be pulled out of the interior of the installation base. Therefore, the axial fan can be conveniently detached from the interior of the heat dissipation base, the axial fan can be conveniently moved out to be overhauled and maintained when damaged, and the use convenience of the heat dissipation base is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of transformer base technology, specifically a heat dissipation base for a transformer. Background Technology

[0002] A transformer is an electrical device primarily used for alternating current (AC) voltage conversion. It converts alternating current from one voltage to another through the principle of electromagnetic induction, and is widely used in power transmission, distribution, and electronic equipment. A transformer consists of two or more windings and an iron core; the voltage conversion ratio between the windings depends on their turns ratio. Transformers enable high-voltage power transmission, reduce line losses, and improve the efficiency of power transmission. The transformer's heat dissipation base is an important component used to enhance the transformer's heat dissipation performance.

[0003] Existing transformer heat sinks typically have multiple axial fans inside that blow air upwards onto the transformer assembly for cooling. However, since the axial fans are usually located inside the heat sink, when they malfunction, the heat sink needs to be opened to remove the fans for inspection and maintenance. This requires using tools to tighten multiple bolts, making the removal and maintenance of the axial fans inconvenient, time-consuming, and labor-intensive. Therefore, we propose a new type of transformer heat sink. Utility Model Content

[0004] The purpose of this utility model is to provide a heat dissipation base for a transformer, so as to solve the problem mentioned in the background art that it is inconvenient to remove the axial fan for inspection and maintenance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation base for a transformer, including a mounting base, the top of which is provided with multiple air outlets, a pull-out component and a dust-blocking assembly slidably fitted on the side wall of the mounting base, a locking component one rotatably fitted on the side wall of the mounting base, a locking hole machined on the rear side wall of the locking component one, a connecting rod fixedly connected to the rear side wall of the locking component one, a locking component two fixedly connected to the rear side wall of the connecting rod, a limit ring fixedly connected to the side wall of the pull-out component, a pressing post penetrating through the side wall of the limit ring and fitting inside the pull-out component, a displacement component fixedly connected to the side wall of the pressing post, a locking post fixedly connected to the side wall of the displacement component, multiple axial flow fans provided inside the pull-out component, and a snap-fit ​​hole opened on the side wall of the pull-out component.

[0006] Preferably, the dust-blocking assembly includes a support plate, a fixing plate fixed to the bottom of the support plate, and a pull plate that cooperates with the bottom of the fixing plate, wherein a plurality of partitions are embedded in the top of the support plate.

[0007] Preferably, a dust-blocking net is embedded in the top of the fixing plate, and the dust-blocking net is fitted to the bottom of the partition.

[0008] Preferably, a metal strip is fixedly connected inside the pull plate, and a brush strip is provided on the top of the metal strip.

[0009] Preferably, the displacement member is fitted inside the extraction member, and the side wall of the displacement member is fitted with a spring sleeved on the pressing column.

[0010] Preferably, the pull-out member has a handle on its side wall, and the locking pin extends through the side wall of the pull-out member.

[0011] Preferably, the mounting base has a pad at the bottom and multiple mounting holes at the top.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, by setting multiple axial fan extraction parts inside the mounting base, allows the pressing column to be pressed backward, causing the pressing column to drive the displacement part to move backward. At this time, the locking column retracts from the locking hole of the locking part one into the extraction part. Then, the locking part one is rotated so that the notch is aligned with the extraction part, so that the locking part one no longer obstructs the extraction part. At this time, the locking part one drives the connecting rod to make the locking part two rotate out from the snap hole. Then, the extraction part can be pulled out from the inside of the mounting base, thereby realizing the convenient removal of the axial fan from the inside of the heat sink base. When the axial fan is damaged, it can be easily removed for inspection and maintenance, increasing the convenience of using the heat sink base.

[0014] 2. When the heat sink base is in use, the axial fan operates, allowing external air to enter the interior of the heat sink base through the dust filter. At this time, dust in the air is intercepted by the dust filter and adheres to the bottom of the dust filter. When the pull plate is pulled back and forth, the brush strips work in conjunction with the bottom of the dust filter to move back and forth, allowing the bottom of the dust filter to be brushed and cleaned. This achieves convenient cleaning of the bottom of the dust filter, saves manpower, and solves the problem of the dust filter being inconvenient to clean due to its location at the bottom of the heat sink base. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the combined structure of locking component one, connecting rod and locking component two of this utility model;

[0017] Figure 3 This is a schematic diagram of the pull-out component structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the combined structure of the pressing column, displacement component and locking column of this utility model;

[0019] Figure 5This is a schematic diagram of the dust-blocking component structure of this utility model;

[0020] Figure 6 This is a schematic diagram showing the disassembled structure of the support plate, fixing plate, and pulling plate of this utility model;

[0021] Figure 7 For the present utility model Figure 6 A magnified view of position A in the middle.

[0022] In the diagram: 100, mounting base; 110, air outlet; 120, pull-out component; 121, locking component one; 122, locking hole; 123, connecting rod; 124, locking component two; 125, snap-fit ​​hole; 130, pressing post; 131, limit ring; 132, displacement component; 133, locking post; 140, axial flow fan; 150, dustproof assembly; 151, support plate; 152, partition; 153, fixing plate; 154, dustproof net; 155, pull plate; 156, metal strip; 157, brush strip. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example

[0025] Please see Figures 1-7 The diagram shows a heat dissipation base for a transformer, including a mounting base 100. The bottom of the mounting base 100 is open, and the lower side of the dustproof component 150 is open to the air. The top of the mounting base 100 is provided with multiple air outlets 110, and the air outlets 110 are provided with stainless steel mesh. The side wall of the mounting base 100 is slidably fitted with a pull-out component 120 and a dustproof component 150. The side wall of the mounting base 100 is rotatably fitted with a locking component 121. The rear side wall of the locking component 121 is machined with a locking hole 122 that fits into a locking post 133. The rear side wall of the locking component 121 is bolted to a connecting rod 123 that fits into the mounting base 100. The rear side wall of the connecting rod 123 is bolted to a locking component 124. The side wall of the pull-out component 120 is bolted to a limit ring 131. The side wall of the limit ring 131 has a pressing post 130 that fits into the pull-out component 120.

[0026] In some embodiments, a hand-tight metal sleeve can be threaded onto the outside of the limiting ring 131. The metal sleeve fits onto the outside of the pressing post 130 and can shield the pressing post 130 to prevent accidental activation.

[0027] The pressing column 130 has a displacement component 132 tightly welded to its side wall, and the displacement component 132 has a locking column 133 tightly welded to its side wall. The pull-out component 120 has multiple axial flow fans 140 inside, and the axial flow fans 140 use common models on the market. The pull-out component 120 has a snap-fit ​​hole 125 on its side wall that matches the locking component 124.

[0028] Specifically, the dustproof assembly 150 includes a support plate 151, a fixing plate 153 fixed to the bottom of the support plate 151 by bolts, and a pull plate 155 that cooperates with the bottom of the fixing plate 153. A plurality of partitions 152 are embedded on the top of the support plate 151.

[0029] Furthermore, a dustproof net 154 is embedded in the top of the fixing plate 153. The dustproof net 154 uses galvanized steel mesh commonly found on the market, and the dustproof net 154 is fitted to the bottom of the partition plate 152.

[0030] Furthermore, a metal strip 156 is bolted to the inside of the pull plate 155, and a brush strip 157 is provided on the top of the metal strip 156. The brush strip 157 is made of nylon thread commonly found on the market.

[0031] Furthermore, the displacement member 132 is fitted inside the extraction member 120, and the side wall of the displacement member 132 is fitted with a spring sleeved on the pressing post 130, so that the pressing post 130 can be reset by the elasticity of the spring when the pressing post 130 is not pressed.

[0032] It is worth noting that the pull-out part 120 is provided with a handle on its side wall, and the locking pin 133 penetrates through the side wall of the pull-out part 120.

[0033] It is worth noting that the bottom of the mounting base 100 is provided with a pad, which is made of commonly available rubber blocks, and the top of the mounting base 100 is provided with multiple mounting holes for installing transformers.

[0034] In addition, all the electrical components and equipment mentioned above use external power sources. The circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. Furthermore, the scope of protection of this utility model does not involve improvements to the internal structure and methods.

[0035] Working principle: By setting multiple pull-out parts 120 for axial fans 140 inside the mounting base 100, when the pressing post 130 is pressed backward, the pressing post 130 causes the displacement part 132 to move backward. At this time, the locking post 133 retracts from the locking hole 122 of the locking part 121 back into the pull-out part 120. Then, the locking part 121 is rotated so that the notch is aligned with the pull-out part 120, so that the locking part 121 no longer obstructs the pull-out part 120. At this time, the locking part 121 drives the connecting rod 123 to make the locking part 2 124 rotate out from the snap-fit ​​hole 125. Then, the pull-out part 120 can be pulled out from inside the mounting base 100, thereby realizing the convenient removal of the axial fan 140 from the heat sink base. The axial fan 140 can be easily removed for inspection and maintenance when it is damaged, increasing the convenience of using the heat sink. When the heat sink is in use, the operation of the axial fan 140 allows outside air to enter the interior of the heat sink through the dust filter 154. At this time, the dust in the air is intercepted by the dust filter 154 and adheres to the bottom of the dust filter 154. When the pull plate 155 is pulled back and forth, the brush strip 157 works with the bottom of the dust filter 154 to move back and forth, and the bottom of the dust filter 154 can be brushed and cleaned by the brush strip 157. This achieves convenient cleaning of the bottom of the dust filter 154, saves manpower, and solves the problem of the dust filter 154 being inconvenient to clean because it is located at the bottom of the heat sink.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation base for a transformer, comprising a mounting base (100), characterized in that: The mounting base (100) has multiple air outlets (110) on its top. A pull-out component (120) and a dust-blocking assembly (150) are slidably fitted on the side wall of the mounting base (100). A locking component one (121) is rotatably fitted on the side wall of the mounting base (100). A locking hole (122) is machined on the rear side wall of the locking component one (121). A connecting rod (123) is fixedly connected to the rear side wall of the locking component one (121). A locking component two (123) is fixedly connected to the rear side wall of the connecting rod (123). 4) A limiting ring (131) is fixedly connected to the side wall of the pull-out member (120). A pressing post (130) that fits inside the pull-out member (120) is passed through the side wall of the limiting ring (131). A displacement member (132) is fixedly connected to the side wall of the pressing post (130). A locking post (133) is fixedly connected to the side wall of the displacement member (132). A plurality of axial flow fans (140) are provided inside the pull-out member (120). A snap-fit ​​hole (125) is opened on the side wall of the pull-out member (120).

2. The heat dissipation base for a transformer according to claim 1, characterized in that: The dust-blocking assembly (150) includes a support plate (151), a fixing plate (153) fixed to the bottom of the support plate (151), and a pull plate (155) fitted to the bottom of the fixing plate (153). The top of the support plate (151) is provided with a plurality of partitions (152).

3. The heat dissipation base for a transformer according to claim 2, characterized in that: The top of the fixing plate (153) is fitted with a dustproof net (154), which is fitted to the bottom of the partition plate (152).

4. The heat dissipation base for a transformer according to claim 2, characterized in that: A metal strip (156) is fixedly connected inside the pull plate (155), and a brush strip (157) is provided on the top of the metal strip (156).

5. A heat dissipation base for a transformer according to claim 1, characterized in that: The displacement member (132) is fitted inside the extraction member (120), and a spring sleeved on the side wall of the displacement member (132) is fitted on the pressing post (130).

6. The heat dissipation base for a transformer according to claim 1, characterized in that: The pull-out member (120) is provided with a handle on its side wall, and the locking pin (133) passes through the side wall of the pull-out member (120).

7. A heat dissipation base for a transformer according to claim 1, characterized in that: The mounting base (100) has a pad at the bottom and multiple mounting holes at the top.