Simple annular transformer cooling fin

Abstract

The utility model discloses a simple annular transformer radiating fin, which relates to the technical field of annular transformers, and comprises an annular transformer body, the top surface of the annular transformer body is fixedly connected with a connector, and the inner wall of the annular transformer body is connected with a first radiating fin. The first radiating fins are bent into a wave shape manually or mechanically and are connected end to end; according to the utility model, the radiating fins are designed to be wave-shaped and annularly embedded into the holes of the annular transformer, and the radiating effect is quickly achieved by adopting a radiating mode of absorbing inside and radiating outside, so that the radiating effect of the annular transformer is improved, and compared with a natural radiating mode, the radiating effect of the wave-shaped radiating fins is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to annular transformer technical field, concretely is a simple annular transformer fin. BACKGROUND

[0002] Annular transformer is usually a kind of high-performance, high-power power transformer, and the working temperature is high, and the load is large, especially the pouring annular transformer, which is more prone to overheating phenomenon. Since the performance and life of the transformer are affected by temperature, the heat dissipation problem of the annular transformer must be paid attention to.

[0003] However, the existing simple annular transformer fin still has some shortcomings in actual use: at present, the common heat dissipation modes of annular transformer include natural cooling, forced air cooling, oil cooling and the like, or increasing fins on the base to dissipate heat. Natural cooling does not need to use any external cooling equipment. This way has low cost, no additional energy consumption, but the heat dissipation effect is unstable, and the efficiency is not high, which is suitable for small power transformers. Forced air cooling refers to cooling the transformer by using a fan or cooler. This way has good heat dissipation effect and high efficiency, and is suitable for large power transformers, and needs additional energy support. Oil cooling refers to cooling the transformer by using an oil cooling system built-in or external to the transformer, which can effectively reduce the temperature of the transformer and improve the service life of the transformer, but the cost is high, the oil requirement is high, and the sealing and leakage prevention measures need to be done well, which is also used in medium and large transformers. Increasing the heat dissipation base or fin on the bottom of the small annular transformer increases the heat dissipation effect to a certain extent, but has the shortcomings of needing to reserve a position for installation and increasing the space occupation of the annular transformer.

[0004] Therefore, we design a simple annular transformer fin to solve the above problems. Utility model content

[0005] The utility model aims at providing a simple annular transformer fin to solve the problems in the background art.

[0006] To solve the above technical problems, the utility model provides a simple annular transformer fin, which comprises an annular transformer body, a connecting head fixedly connected to the top surface of the annular transformer body, and a first fin connected to the inner wall of the annular transformer body.

[0007] Further, the annular transformer body and the first fin are connected by an adhesive.

[0008] Further, the first fin is connected at the head and tail to form a plurality of V-shaped buffer zones.

[0009] Further, the surface of the annular transformer body is sleeved with a heat dissipation ring, and the outer arc wall of the heat dissipation ring is annularly provided with a plurality of second heat dissipation fins.

[0010] Further, one side of the second heat dissipation fin is located in the inner cavity of the heat dissipation ring, and the other side of the second heat dissipation fin is located on the outer side of the heat dissipation ring.

[0011] Further, the inner cavity of the heat dissipation ring is fixedly sleeved with a heat conduction fin, and the heat conduction fin is attached to the outer surface of the annular transformer body.

[0012] Further, the material of the adhesive is heat-conducting glue or silicone grease.

[0013] Further, the material of the first heat dissipation fin is an aluminum sheet or an aluminum alloy sheet.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. In the utility model, the heat dissipation fins are designed in a wave shape and are embedded in the annular transformer hole, the heat dissipation mode is "internal suction and external dissipation", the heat dissipation effect is improved, and the wave-shaped heat dissipation fin has better heat dissipation effect than the natural heat dissipation mode.

[0016] 2. In the utility model, compared with the oil-cooled and air-cooled heat dissipation modes which have high cost and consume energy, the wave-shaped heat dissipation fin has low manufacturing cost and is simple and convenient to install.

[0017] 3. In the utility model, the wave-shaped heat dissipation fin utilizes the annular transformer hole space and does not occupy other space positions.

[0018] 4. In the utility model, the wave-shaped heat dissipation fin has wide application range and is suitable for various types of small annular transformers. DRAWINGS

[0019] Figure 1 It is an external three-dimensional structure schematic view of the utility model;

[0020] Figure 2 It is a schematic view of the wave-shaped heat dissipation fin embedded in the transformer hole after being wound into a circular shape;

[0021] Figure 3 It is a schematic view of the wave-shaped heat dissipation fin embedded in the transformer hole after being wound into a circular shape;

[0022] Figure 4 It is an effect drawing of the aluminum / aluminum alloy metal sheet bent into a wave-shaped heat dissipation fin;

[0023] Figure 5The utility model discloses a wave type radiating fin around circular effect picture.

[0024] In the drawing: 1, annular transformer body; 2, connecting head; 3, first radiating fin; 4, adhesive; 5, V-shaped buffer area; 6, radiating ring; 7, second radiating fin; 8, heat conduction sheet. DETAILED DESCRIPTION

[0025] The utility model discloses an embodiment of the utility model will be clearly and completely described below with the drawings in the embodiment of the utility model, obviously, the described embodiment is only a part of embodiment of the utility model, not all embodiments. Based on the embodiment in the utility model, all other embodiments that the ordinary skill in the art obtains without making creative labor belong to the range of protection of the utility model.

[0026] Please refer to Figures 2-5 The utility model provides a kind of simple annular transformer radiating fin, including annular transformer body 1, annular transformer body 1 top surface is fixedly connected with connecting head 2, annular transformer body 1 inner wall is connected with first radiating fin 3, first radiating fin 3 is bent into wave shape by artificial or machine processing and is connected in head, annular transformer body 1 and first radiating fin 3 are adhered and connected by adhesive 4, first radiating fin 3 is connected in head and forms multiple V-shaped buffer area 5, the material of adhesive 4 is heat-conducting adhesive or silicon grease, the material of first radiating fin 3 is aluminium sheet or aluminium alloy sheet material.

[0027] Specific implementation, wave shape first radiating fin 3 top and annular transformer body 1 hole wall close fit, by heat-conducting adhesive or silicon grease, the heat of annular transformer body 1 can be quickly conducted to the cooling of folded metal sheet;Heat is cooled and radiated on the folded metal sheet, and is discharged to the central hole in the reverse V-shaped channel buffer;The heat of annular transformer body 1 inner wall accumulates to certain degree, and is directly radiated to V-shaped buffer area 5 and radiated outward;Wave shape first radiating fin 3 is placed in the hole of annular transformer body 1, and forms a "internal suction external dispersion" heat dissipation effect;That is, the top end of the folded surface of wave shape first radiating fin 3 quickly absorbs heat to first radiating fin 3 and radiates outward after cooling;The V-shaped area formed by first radiating fin 3 and hole wall absorbs the heat accumulated on the inner wall of annular transformer body 1 to V-shaped buffer area 5 and radiates;The remaining heat after the conduction cooling of first radiating fin 3 is radiated through the reverse V-shaped area formed by first radiating fin 3 and central hole.

[0028] Please refer to Figure 2, the circular wave-shaped first radiating fin 3 is placed in the hole of the annular transformer body 1 and is fixed by heat-conducting glue or silicon grease, when the annular transformer body 1 works and emits heat, the heat is transmitted to each fold surface of the wave-shaped first radiating fin 3, the fold surfaces of the first radiating fin 3 evenly share the heat transmitted and dissipate the heat through the air hole surrounded by the first radiating fin 3, so that the heat dissipation effect is improved.

[0029] The first radiating fin 3 is made of aluminum sheet or aluminum alloy sheet which is easy to bend, the thickness of the sheet is not more than 1 mm, the width of the first radiating fin 3 is determined according to the hole height of the annular transformer body 1 and is less than or equal to the hole height of the annular transformer body 1, and the length of the first radiating fin 3 is determined according to the hole diameter of the annular transformer body 1 and is 2-4 times of the hole diameter of the annular transformer body 1.

[0030] The main design and manufacturing steps are as follows:

[0031] The hole diameter d of the annular transformer body 1 is measured and recorded, and the hole height h of the annular transformer body 1 is measured and recorded, the raw material suitable for manufacturing the wave-shaped first radiating fin 3 is selected, and the aluminum sheet and aluminum alloy sheet which is easy to bend are selected to ensure that the thickness of the sheet is not more than 1 mm;

[0032] Suppose that the hole diameter d of the annular transformer body 1 is 36 mm and the hole height h of the annular transformer body 1 is 40 mm, the length L and the width W of the raw material of the first radiating fin 3 are calculated and determined, here the hole height h is taken as the width of the raw material of the first radiating fin 3, that is, the width W of the sheet raw material is 40 mm, the length L1 of the sheet raw material is calculated, here the length L1 is 3 times of the hole diameter, that is, L1=3d=3*36=108 mm, according to the length and the width calculated and determined by the raw material of the metal, the corresponding rectangular sheet is cut out, the cut rectangular sheet is divided into eight equal parts, each part has a length L2=108 / 8=13.5 mm, and a mark line is made, refer to Figure 4 The eight-equal-part sheet is bent into a U-shaped according to the equal-part mark line, and the bending is made by manual bending or machine processing according to the hardness of the raw material of the metal, refer to Figure 5 The bent sheet is connected at the head and the tail to form a ring along the hole wall of the annular transformer body 1, and the ring-shaped first radiating fin 3 is placed in the hole of the annular transformer body 1 so that the top end of each fold surface is tightly attached to the inner wall of the hole of the annular transformer body 1.

[0033] Refer to Figure 2, the two fold surfaces of the first radiating fin 3 embedded in the center hole of the annular transformer body 1 form a V-shaped area with the inner wall of the annular transformer body 1, and form an inverse V-shaped area with the space of the center hole of the annular transformer body 1; the metal first radiating fin 3 forms a petal shape; at the joint of the first radiating fin 3 and the hole wall of the annular transformer body 1, evenly point the heat-conducting glue or the heat-dissipating silicone grease; after the heat-conducting glue or the silicone grease solidifies, the design and installation of the annular transformer body 1 are completed.

[0034] Referring to Figure 1 , the surface of the annular transformer body 1 is movably sleeved with a heat dissipation ring 6, the outer arc wall of the heat dissipation ring 6 is annularly arrayed with a plurality of second radiating fins 7, one side of the second radiating fin 7 is located in the inner cavity of the heat dissipation ring 6, the other side of the second radiating fin 7 is located on the outside of the heat dissipation ring 6, the inner cavity of the heat dissipation ring 6 is fixedly sleeved with a heat-conducting fin 8, and the heat-conducting fin 8 is attached to the outer surface of the annular transformer body 1.

[0035] The wire is connected with the connector 2, so that the annular transformer body 1 is used, and in the process of use, the heat of the annular transformer body 1 is transmitted to the heat dissipation ring 6 through the attachment of the heat-conducting fin 8 to the annular transformer body 1, and then the heat is transmitted to the air through the second radiating fin 7 for cooling.

[0036] Working principle:

[0037] I. When the annular transformer body 1 is energized, the heat generated is directly and quickly conducted to the inner side of each panel of the first radiating fin 3 through the adhesive 4 and the joint;

[0038] II. When the heat of the hole wall of the annular transformer body 1 accumulates to a certain degree, it is dissipated to the V-shaped buffer area 5 for buffering and discharging;

[0039] III. The heat in the V-shaped buffer area 5 of the annular transformer body 1 and the conducted heat are cooled on the panel through the first radiating fin 3, and then are dissipated and discharged to the center hole through the metal panel to the inverse V-shaped channel outside.

[0040] The wave-shaped first heat sink 3 is tightly closed and attached to the hole wall of the annular transformer body 1, and can quickly conduct the heat of the annular transformer body 1 to the folded metal sheet through heat-conducting glue or silicone grease for cooling; after the heat is cooled and dissipated on the folded metal sheet, it is slowly dissipated to the central hole through the inverted V-shaped channel; when the heat accumulated on the inner wall of the annular transformer body 1 reaches a certain degree, it is directly dissipated to the V-shaped buffer area 5 and dissipated outward; the wave-shaped first heat sink 3 is placed in the hole of the annular transformer body 1, forming a "internal absorption and external dissipation" heat dissipation effect; that is, the wave-shaped first heat sink 3 quickly absorbs the heat on the folded surface of the first heat sink 3 for cooling and then dissipates outward; the V-shaped area formed by the first heat sink 3 and the hole wall absorbs the heat accumulated on the inner wall of the annular transformer body 1 to the V-shaped buffer area 5 for dissipation; the remaining heat after being cooled by the first heat sink 3 is dissipated through the inverted V-shaped area formed by the first heat sink 3 and the central hole.

[0041] The wire is connected with the connecting head 2, so that the annular transformer body 1 is used; in the process of use, the heat of the annular transformer body 1 is transmitted to the heat dissipation ring 6 through the heat-conducting sheet 8 attached to the annular transformer body 1, and then transmitted to the air through the second heat sink 7 for cooling.

Claims

1. A simple ring transformer cooling fin comprising a ring transformer body (1), characterized in that, The annular transformer body (1) top surface is fixedly connected with a connector (2), the annular transformer body (1) inner wall is connected with a first heat sink (3), the first heat sink (3) is bent into a wave shape by artificial or machine processing and is connected end to end.

2. A simple ring transformer heat sink as claimed in claim 1, characterized in that: The annular transformer body (1) and the first heat sink (3) are connected by an adhesive (4).

3. A simple ring transformer heat sink as claimed in claim 2, characterized in that: The first heat sink (3) is connected end to end to form a plurality of V-shaped buffer zones (5).

4. A simple ring transformer heat sink as claimed in claim 3, characterized in that: The surface of the annular transformer body (1) is movably sleeved with a heat dissipation ring (6), and the outer arc wall of the heat dissipation ring (6) is annularly arrayed with a plurality of second heat sinks (7).

5. A simple ring transformer heat sink as claimed in claim 4, characterized in that: One side of the second heat sink (7) is located in the inner cavity of the heat dissipation ring (6), and the other side of the second heat sink (7) is located on the outside of the heat dissipation ring (6).

6. A simple ring transformer heat sink as claimed in claim 5, characterized in that: The inner cavity of the heat dissipation ring (6) is fixedly sleeved with a heat conduction sheet (8), and the heat conduction sheet (8) is attached to the outer surface of the annular transformer body (1).

7. A simple ring transformer heat sink as claimed in claim 6, characterized in that: The material of the adhesive (4) is heat-conducting glue or silicone grease.

8. A simple ring transformer heat sink as claimed in claim 7, characterized in that: The material of the first heat sink (3) is an aluminum sheet or an aluminum alloy sheet.

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