Transformer easy to dissipate heat

Abstract

The utility model relates to the technical field of transformers, in particular to a transformer easy to dissipate heat, which comprises a transformer main body, the transformer main body comprises a box body, an iron core and a winding are arranged in the box body, a plurality of cooling fins which are transversely distributed at intervals are arranged on the outer side of the transformer main body, and a heat dissipation gap is arranged between every two adjacent cooling fins. Ventilation covers are detachably connected in the heat dissipation gaps and form foreign matter anti-blocking structures of the heat dissipation gaps, the left sides and the right sides of the ventilation covers are clamped and fixed to the side walls of the adjacent heat dissipation fins through elastic clamping structures, and face cover bodies are arranged on the ventilation covers and located on the transverse outer opening sides of the heat dissipation gaps. The ventilation cover is provided with a top cover body and a bottom cover body at the upper and lower opening sides of the heat dissipation gap respectively; the top of the top cover body is provided with an inclined end surface; the face cover body, the top cover body and the bottom cover body are respectively provided with a side hole and a front hole which are communicated with each other. The outdoor transformer is favorable for solving the problems that gaps of radiating fins of an existing outdoor transformer are prone to being blocked by foreign matters, the radiating effect is affected, and the structure is prone to aging.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to a transformer that is easy to dissipate heat. Background Technology

[0002] A transformer is an electrical device used to transform the voltage of alternating current. Existing transformers typically consist mainly of an iron core, windings, and a casing, with multiple heat sinks linearly arrayed on the outer surface of the casing to aid in heat dissipation during operation.

[0003] When transformers are installed outdoors, they are often placed in relatively remote locations, such as roadsides, green belts, or walls. These locations are often planted with trees and shrubs, and with good ventilation, fallen leaves or debris are often blown into the gaps of the transformer's heat sink fins. Since these gaps are designed to increase the heat dissipation space of the heat sink fins, if they are blocked, the ventilation effect will be greatly reduced, leading to a decrease in heat dissipation. In addition, the blades often cause acidic stains to adhere to the surface of the heat sink fins, which can corrode and damage the heat sink fin structure and accelerate the aging of the heat sink fins. Therefore, how to protect and upgrade the existing transformer heat sink fins has become one of the hot topics in the industry. Utility Model Content

[0004] This invention provides a transformer that is easy to dissipate heat, which helps to solve the problems of foreign objects easily clogging the gaps of the heat sinks of current outdoor transformers, affecting the heat dissipation effect and the structure being prone to aging.

[0005] This utility model is implemented as follows:

[0006] A transformer with easy heat dissipation includes a transformer body, which includes a housing. An iron core and windings are disposed inside the housing. Several horizontally spaced heat dissipation fins are provided on the outer side of the transformer body. Each heat dissipation fin is a longitudinally arranged rectangular thin sheet structure. A heat dissipation gap exists between adjacent heat dissipation fins. A ventilated cover is detachably connected to each heat dissipation gap, forming a foreign object prevention structure for the heat dissipation gap. The left and right sides of the ventilated cover are snapped and fixed to the sidewalls of adjacent heat dissipation fins via elastic snap-fit ​​structures. A face shield is provided on the horizontally open side of the heat dissipation gap, and a top cover and a bottom cover are provided on the upper and lower open sides of the heat dissipation gap, respectively. The top of the top cover has an inclined end face. The face shield, top cover, and bottom cover are respectively provided with interconnected side holes and front holes.

[0007] Based on the above technical solution, the top of the inclined end face is fitted to the outer wall of the transformer body.

[0008] Based on the above technical solution, the angle between the inclined end face and the outer wall of the transformer body is an acute angle.

[0009] Based on the above technical solution, the mask body, top cover body and bottom cover body are provided with plugs on adjacent sides, and the mask body, top cover body, bottom cover body and plugs body are an integral structure.

[0010] Based on the above technical solution, the mask body is provided with a plurality of mutually perpendicular first side holes and first front holes; the top cover body is provided with a plurality of mutually perpendicular second side holes and second front holes; the bottom cover body is provided with mutually perpendicular third side holes and third front holes; the plug body is provided with a fourth side hole; the first side holes, first front holes, second side holes, second front holes, third side holes, third front holes and fourth side holes are interconnected.

[0011] Based on the above technical solution, the first side hole, the first main hole, the second side hole, the second main hole, the third side hole, the third main hole, and the fourth side hole are all strip-shaped slot structures.

[0012] Based on the above technical solution, the elastic snap-fit ​​structure includes a fixing member disposed on the left and right side walls of the plug-in component. The fixing member has a beveled end face at one end facing the outer side wall of the transformer body, and an anti-slip plate at the end of the beveled end face. An elastic support structure is provided between the fixing member and the plug-in component.

[0013] Based on the above technical solution, the mask body is provided with flanges on both sides of the first positive hole opening, and the outer end of the flange is a flow guiding slope, with the top of the flow guiding slope facing the first positive hole side.

[0014] Compared with the prior art, the present invention has at least the following advantages:

[0015] 1. This utility model effectively prevents foreign objects from entering the heat dissipation gap and blocking the channel by setting a breathable cover as a foreign object prevention structure for the heat dissipation gap. It helps to solve the problems that foreign objects are easily blocked in the heat dissipation gap of outdoor transformers, affecting the heat dissipation effect and the structure is prone to aging.

[0016] 2. The flexible snap-fit ​​structure of the ventilation cover makes it easier and faster to install and remove, which facilitates cleaning and maintenance by operation and maintenance personnel. It also makes it easier to upgrade a large number of existing transformers using only the ventilation cover.

[0017] 3. The design of the face shield, top shield, and bottom shield not only improves the overall strength and stability of the ventilator, but also increases the number and area of ​​airflow channels, further improving heat dissipation efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a heat-dissipating transformer in one embodiment;

[0020] Figure 2 for Figure 1 Side view;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure of the heat sink and vent cover;

[0022] Figure 4 This is a schematic diagram of the structure of a single protective shield;

[0023] Figure 5 This is a schematic diagram of the mounting structure of the fastener in one embodiment;

[0024] Figure 6 This is a schematic diagram illustrating the guiding effect of the flange on crosswinds in another embodiment.

[0025] The diagram is labeled as follows: 100, transformer body; 200, heat sink; 300, vent cover; 310, faceplate; 311, first side hole; 312, first main hole; 313, flange; 320, top cover; 321, second side hole; 322, second main hole; 330, bottom cover; 331, third side hole; 332, third main hole; 340, connector; 341, fourth side hole; 342, limiting hole; 350, fastener; 351, beveled end face; 352, anti-slip plate; 353, guide rod; 354, spring. Detailed Implementation

[0026] 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 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. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0027] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] Example 1: Combination Figure 1-5 This embodiment discloses a transformer with easy heat dissipation. It aims to effectively prevent foreign objects from clogging the gaps of the heat sink 200 through a novel protective structure for the heat sink 200, reducing dirt accumulation, improving heat dissipation efficiency, and extending the transformer's service life. The transformer includes a transformer body 100, which includes a housing. The housing contains an iron core and windings, which are existing technologies. Their specific structure and working principle will not be described in detail here. Those skilled in the art can select and implement the appropriate model from existing technologies based on actual operating conditions.

[0031] The transformer body 100 is provided with a number of horizontally spaced heat sinks 200 on its outer side. The heat sinks 200 are rectangular thin sheet structures arranged vertically. There are heat dissipation gaps between adjacent heat sinks 200 to increase the heat dissipation area and ventilation space.

[0032] A vent 300 is detachably connected to the heat dissipation gap. The vent 300 constitutes a foreign object anti-blocking structure for the heat dissipation gap, effectively preventing foreign objects from entering the heat dissipation gap and blocking the channel.

[0033] Specifically, the vent 300 has a face shield 310 on the lateral outer opening side of the heat dissipation gap, and a top shield 320 and a bottom shield 330 on the upper and lower opening sides of the heat dissipation gap, respectively. The face shield 310, top shield 320, and bottom shield 330 have plug-in bodies 340 on adjacent sides. The face shield 310, top shield 320, bottom shield 330 and plug-in bodies 340 are an integral structure. The vent 300 is made of thermally conductive material. In this embodiment, the vent 300 is made of galvanized aluminum, which increases the heat diffusion structure and improves the heat dissipation effect.

[0034] The top of the top cover 320 is provided with an inclined end face, the top of which is fitted against the outer wall of the transformer body 100. The angle between the inclined end face and the outer wall of the transformer body 100 is an acute angle, which makes it difficult for debris such as leaves to accumulate on the top of the top cover 320, and the debris will slide down the inclined end face to reduce blockage.

[0035] The mask body 310, top cover 320, and bottom cover 330 are respectively provided with interconnected side holes and front holes. Specifically, the mask body 310 has a plurality of mutually perpendicular first side holes 311 and first front holes 312; the top cover 320 has a plurality of mutually perpendicular second side holes 321 and second front holes 322; the bottom cover 330 has a plurality of mutually perpendicular third side holes 331 and third front holes 332; and the connector 340 has a fourth side hole 341. The first side holes 311, first front holes 312, second side holes 321, second front holes 322, third side holes 331, third front holes 332, and fourth side holes 341 are... In this embodiment, the interconnected structure includes a first side hole 311, a first main hole 312, a second side hole 321, a second main hole 322, a third side hole 331, a third main hole 332, and a fourth side hole 341, all of which are strip-shaped slot structures. The width of each of these structures does not exceed 5 mm. This is to ensure the ventilation effect inside the ventilator 300 and to prevent external foreign objects from easily entering the heat dissipation gap.

[0036] To ensure convenient and efficient installation of the vent cover 300, the left and right sides of the vent cover 300 are secured to the side walls of the adjacent heat sink 200 via elastic snap-fit ​​structures. Figure 5As shown, the elastic snap-fit ​​structure includes a fixing member 350 disposed on the left and right side walls of the plug-in component. The fixing member 350 has a beveled end face 351 at one end facing the outer side wall of the transformer body 100, and an anti-slip plate 352 at the end of the beveled end face 351. An elastic support structure is provided between the fixing member 350 and the plug-in component. The elastic support structure includes a guide rod 353. A limiting hole 342 adapted to the guide rod 353 is provided on the side wall of the plug-in component. A spring 354 abuts between the inner side of the guide rod 353 and the inner side wall of the limiting hole 342. The spring 354 can drive the guide rod 353 to drive the fixing member 350 to move outward, so that the installed vent cover 300 can be firmly snapped between two adjacent heat sinks 200. The installation is convenient and also conducive to the modification and upgrading of the heat sink 200 structure of the old transformer.

[0037] It should be noted that after installation, several ventilation covers 300 form a flat outer end face to ensure the effect of preventing the accumulation and blockage of foreign objects.

[0038] Example 2: Based on Example 1, combined with Figure 6 As shown, in this embodiment, to further enhance the heat dissipation effect, the mask body 310 is provided with flanges 313 on both sides of the opening of the first positive hole 312. The outer end of the flange 313 is a guide slope, and the top of the guide slope faces the first positive hole 312. During use, when the crosswind passes through the guide slope, it will be affected by its guidance, and after a slight change in direction and acceleration, a relative negative pressure zone will be formed in the area outside the opening of the first positive hole 312. This allows the gas inside the first positive hole 312 to flow out faster, thereby improving the heat dissipation effect.

[0039] It should be noted that the flanges 313 on both sides of the opening of the same first positive hole 312 are symmetrically arranged, so that the crosswinds from different directions can generate corresponding speed-up heat dissipation effects.

[0040] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A heat-dissipating transformer, comprising a transformer body (100), the transformer body (100) including a casing, the casing housing containing an iron core and windings, characterized in that, The transformer body (100) has several horizontally spaced heat sinks (200) on its outer side. The heat sinks (200) are rectangular thin sheet structures arranged vertically. There are heat dissipation gaps between adjacent heat sinks (200). A ventilator (300) is detachably connected to the heat dissipation gap. The ventilator (300) constitutes a foreign object anti-blocking structure for the heat dissipation gap. The left and right sides of the ventilator (300) are snapped and fixed to the side walls of the adjacent heat sinks (200) by an elastic snap-fit ​​structure. The ventilator (300) has a face shield (310) on the horizontal outer opening side of the heat dissipation gap. The ventilator (300) has a top shield (320) and a bottom shield (330) on the upper and lower opening sides of the heat dissipation gap, respectively. The top of the top shield (320) has an inclined end face. The face shield (310), top shield (320) and bottom shield (330) are respectively provided with interconnected side holes and front holes.

2. The heat-dissipating transformer according to claim 1, characterized in that, The top of the inclined end face is fitted to the outer wall of the transformer body (100).

3. A heat-dissipating transformer according to claim 2, characterized in that, The angle between the inclined end face and the outer wall of the transformer body (100) is an acute angle.

4. The heat-dissipating transformer according to claim 1, characterized in that, The mask body (310), top cover body (320) and bottom cover body (330) are provided with plugs (340) on adjacent sides, and the mask body (310), top cover body (320), bottom cover body (330) and plugs (340) are an integral structure.

5. A heat-dissipating transformer according to claim 4, characterized in that, The mask body (310) is provided with a plurality of first side holes (311) and first front holes (312) that are perpendicular to each other; the top cover body (320) is provided with a plurality of second side holes (321) and second front holes (322) that are perpendicular to each other; the bottom cover body (330) is provided with a third side hole (331) and a third front hole (332) that are perpendicular to each other; the plug body (340) is provided with a fourth side hole (341); the first side holes (311), the first front holes (312), the second side holes (321), the second front holes (322), the third side holes (331), the third front holes (332) and the fourth side holes (341) are interconnected.

6. A heat-dissipating transformer according to claim 5, characterized in that, The first side hole (311), the first main hole (312), the second side hole (321), the second main hole (322), the third side hole (331), the third main hole (332), and the fourth side hole (341) are all strip-shaped slot structures.

7. A heat-dissipating transformer according to claim 4, characterized in that, The elastic snap-fit ​​structure includes a fixing member (350) disposed on the left and right side walls of the plug-in. The fixing member (350) has a beveled end face (351) at one end facing the outer side wall of the transformer body (100), and an anti-slip plate (352) is provided at the end of the beveled end face (351). An elastic support structure is provided between the fixing member (350) and the plug-in.

8. A heat-dissipating transformer according to claim 5, characterized in that, The mask body (310) has flanges (313) on both sides of the opening of the first positive hole (312). The outer end of the flange (313) is a flow guide slope, and the top of the flow guide slope faces the first positive hole (312).

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