Heat dissipation device of transformer and transformer

Abstract

The utility model embodiment provides the heat abstractor and transformer of transformer, this heat abstractor of transformer includes at least one cooling fin and at least two flow guides, the one end of two flow guides is used for installing respectively and is connected on the lateral wall of transformer body, and the cooling fin is arranged on two flow guides respectively, in vertical direction, the bottom of cooling fin is provided with the liquid collecting part as the low position of cooling fin, and / or, in vertical direction, the top of cooling fin is provided with the liquid distribution part as the high position of cooling fin, and the internal communication of cooling fin and flow guide forms the passage for passing through the heat abstracting medium, a kind of transformer, it is characterized in that, including transformer body and heat abstractor, heat abstractor is arranged on the lateral wall of transformer body, cooling fin is parallel to lateral wall, and flow guide is communicated to the inside of transformer body, the utility model embodiment realizes the effect that heat dissipation oil circulation is more sufficient and circulation efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and more specifically, to a heat dissipation device for a transformer and a transformer. Background Technology

[0002] Transformers are common electrical devices used in various circuit networks. Transformers typically generate heat during operation, and existing oil-immersed transformers dissipate heat through cooling oil. Specifically, to improve heat dissipation efficiency, existing oil-immersed transformers have multiple heat sinks arranged parallel to one side of the transformer body. These heat sinks are connected to the transformer body via current-conducting components, and the heat sinks, current-conducting components, and transformer body are internally interconnected.

[0003] However, the existing heat sink and the flow guide have limited width of the flow channel, making it difficult for the heat dissipation oil that is far from the flow channel to circulate through the flow guide. Utility Model Content

[0004] This utility model addresses the shortcomings of existing methods by proposing a heat dissipation device and a transformer to solve the technical problems of insufficient circulation of cooling oil and low circulation efficiency in the prior art.

[0005] In a first aspect, embodiments of this utility model provide a heat dissipation device for a transformer, comprising:

[0006] At least one heat sink and at least two airflow guides;

[0007] One end of each of the two current guides is used to be connected to the side wall of the transformer body during installation, and the heat sinks are respectively disposed on the two current guides;

[0008] in,

[0009] In the vertical direction, the bottom of the heat sink is provided with a liquid collection part as the lower position of the heat sink, and at least one of the flow guides is connected to the liquid collection part;

[0010] And / or, in the vertical direction, the top of the heat sink is provided with a liquid distribution section as the high position of the heat sink, the liquid distribution section extends from top to bottom toward the side of the heat sink, and at least one of the flow guides is connected to the liquid distribution section.

[0011] The heat sink and the flow guide are internally connected to form a channel for the passage of the heat dissipation medium.

[0012] Optionally, the liquid collecting section includes two liquid collecting surfaces, which converge from two opposite sides of the heat sink towards the lower center of the heat sink to form a liquid collecting position below the center of the heat sink, and at least one of the flow guides is connected to the liquid collecting position.

[0013] Optionally, the liquid distribution section includes two liquid distribution surfaces, which converge from two opposite sides of the heat sink toward the center of the heat sink to form a liquid distribution position above the center of the heat sink, and at least one of the flow guides is connected to the liquid distribution position.

[0014] Optionally, it also includes a tandem element;

[0015] The number of heat sinks is multiple, and the multiple heat sinks are arranged along the axial direction of the air guide. The series member is connected to the multiple heat sinks in sequence.

[0016] Optionally, it also includes at least two reinforcement components;

[0017] At least one of the reinforcing members is connected to one of the current guides, and the reinforcing member is used to act on the transformer body during installation to provide support and reinforcement for the current guide.

[0018] Optionally, the number of reinforcement components connected to one of the flow guides is three, and the three reinforcement components are arranged around the periphery of the flow guide.

[0019] Optionally, the reinforcement includes a support edge, a mounting edge, and a beveled edge;

[0020] The supporting side, the mounting side, and the hypotenuse together form a right triangle; or, the extensions of the supporting side, the mounting side, and the hypotenuse together form a right triangle.

[0021] The supporting edge is connected to the side wall of the flow guide, and the mounting edge is used to connect to the transformer body during installation.

[0022] Optionally, the reinforcement further includes a first connecting edge, through which the support edge and the inclined edge are connected;

[0023] And / or, the reinforcement further includes a second connecting edge, through which the support edge and the mounting edge are connected.

[0024] Secondly, this utility model embodiment provides a transformer, including a transformer body and a heat dissipation device for the transformer;

[0025] The heat dissipation device is disposed on the side wall of the transformer body, the heat sink is parallel to the side wall, and the flow guide is connected to the interior of the transformer body.

[0026] Optionally, it also includes connectors;

[0027] In the horizontal direction, at least two heat dissipation devices of the transformer are arranged side by side on one side wall of the transformer body, and the two ends of the connector are each connected to a heat dissipation device of the transformer.

[0028] Optionally, the connector is disposed at the bottom of the heat dissipation device of the transformer and is respectively connected to the flow guide at the bottom of the heat dissipation device of the transformer.

[0029] The beneficial technical effects brought about by the technical solution provided by this utility model embodiment include:

[0030] By incorporating a collection section, the flow of cooling oil within the heatsink can be guided by flow guides, improving the overall circulation of the cooling oil. Additionally, a distribution section directs the cooling oil to the sides of the heatsink, increasing the surface area for heat dissipation and enhancing cooling efficiency.

[0031] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of the invention. Attached Figure Description

[0032] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0033] Figure 1 A schematic diagram of the structure of a heat dissipation device for a transformer provided in an embodiment of this utility model;

[0034] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0035] Figure 3 This is a structural schematic diagram of a transformer product provided for an embodiment of the present utility model.

[0036] The meanings of the reference numerals in the attached figures are as follows:

[0037] 10. Heat sink; 11. Liquid collecting section; 111. Liquid collecting surface; 12. Liquid distributing section; 121. Liquid distributing surface; 20. Reinforcing component; 21. Supporting edge; 22. Mounting edge; 23. Beveled edge; 24. First connecting edge; 25. Second connecting edge; 30. Flow guide; 40. Connecting component; 50. Series component; 60. Transformer body. Detailed Implementation

[0038] The present invention will now be described in detail. Examples of embodiments of the present invention are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. Furthermore, detailed descriptions of known technologies that are unnecessary for the features of the present invention shown are omitted. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0039] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0040] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0041] The heat dissipation device and transformer provided by this utility model are intended to solve the above-mentioned technical problems in the prior art.

[0042] The technical solution of this utility model and how the technical solution of this utility model solves the above-mentioned technical problems will be described in detail below with specific embodiments.

[0043] This utility model provides a heat dissipation device for a transformer, and the structural schematic diagram of the heat dissipation device is shown below. Figure 1 and Figure 2 As shown, it includes: at least one heat sink 10 and at least two airflow guides 30;

[0044] One end of each of the two flow guides 30 is connected to the side wall of the transformer body 60 during installation. The heat sink 10 is respectively disposed on the two flow guides 30. In the vertical direction, the bottom of the heat sink 10 is provided with a liquid collection part 11 as the lower position of the heat sink 10, and at least one flow guide 30 is connected to the liquid collection part 11. And / or, in the vertical direction, the top of the heat sink 10 is provided with a liquid distribution part 12 as the higher position of the heat sink 10. The liquid distribution part 12 extends from top to bottom toward the side of the heat sink 10, and at least one flow guide 30 is connected to the liquid distribution part 12. The heat sink 10 and the flow guide 30 are internally connected to form a channel for the passage of heat dissipation medium.

[0045] For example, consider a heat sink 10 and two flow guides 30. In this embodiment, the heat sink 10 and the flow guides 30 have a hollow structure in the middle, which serves as a flow channel for the heat dissipation medium (generally insulating heat dissipation oil). The flow guides 30 are preferably tubular structures.

[0046] Importantly, the liquid collecting section 11 is located at the bottom of the heat sink 10. This section guides or collects the cooling oil throughout the heat sink 10, facilitating faster oil circulation and ensuring sufficient circulation of the cooling oil within the heat sink 10. Furthermore, the distribution section 12 extends towards the heat sink 10 so that when cooling oil enters from the guide member 30 downwards into the distribution section 12, it can flow along the inner wall of the distribution section 12 towards the inner wall of the heat sink 10, thus increasing the contact area between the cooling oil and the heat sink 10. In summary, the liquid collecting section 11 and the distribution section 12 guide the cooling oil, promoting effective circulation and heat dissipation.

[0047] In this embodiment, a flow guide 30 is provided at the top and bottom of the heat sink 10, and the two flow guides 30 are arranged parallel to each other. Alternatively, there can be multiple flow guides 30, which are arranged parallel and aligned along the axial direction of the flow guides 30.

[0048] Optionally, the liquid collecting section 11 includes two liquid collecting surfaces 111, which converge from two opposite sides of the heat sink 10 toward the lower center of the heat sink 10 to form a liquid collecting position below the center of the heat sink 10, and at least one guide member 30 is connected to the liquid collecting position.

[0049] For example, the two liquid collecting surfaces 111 and the bottom edge of the heat sink 10 form an inverted triangular structure, and the space within the inverted triangular structure can all serve as liquid collecting points. Of course, to facilitate the connection between the guide member 30 and the liquid collecting points, the bottom corner of the inverted triangular structure is set as a plane, and the guide member 30 is connected to this plane. In this embodiment, the liquid collecting surface 111 is an inclined surface, with one end connected to the bottom end of the narrow side of the heat sink 10 and the other end connected to one end of the aforementioned plane; alternatively, the liquid collecting surface 111 can be a downwardly convex curved surface. In this way, the two liquid collecting surfaces 111 gather the cooling oil within the heat sink 10 towards the center, which balances the flow of cooling oil at various locations, ensuring the uniformity of the overall circulation.

[0050] Optionally, the liquid distribution section 12 includes two liquid distribution surfaces 121, which converge from two opposite sides of the heat sink 10 toward the center of the heat sink 10 to form a liquid distribution position above the center of the heat sink 10, and at least one guide member 30 is connected to the liquid distribution position.

[0051] For example, referring to the aforementioned liquid collecting surface 111, the two liquid distributing surfaces 121 and the top edge of the heat sink 10 form an inverted triangular structure, and the space within the upright triangular structure can all serve as liquid distributing positions. Of course, to facilitate the connection between the guide member 30 and the liquid distributing positions, the apex of the upright triangular structure is set as a plane, and the guide member 30 is connected to this plane. In this embodiment, the liquid distributing surface 121 is an inclined surface, with one end connected to the top of the narrow side surface of the heat sink 10 and the other end connected to one end of the aforementioned plane; alternatively, the liquid collecting surface 111 can be a downwardly convex curved surface. Thus, the two liquid distributing surfaces 121 guide the cooling oil in the top guide member 30 to the interior of each side surface of the heat sink 10, thereby increasing the contact area between the cooling oil and the heat sink 10 and improving heat dissipation efficiency. In summary, the two liquid distributing surfaces 121 and the two liquid collecting surfaces 111 are arranged symmetrically.

[0052] Optionally, it also includes a series member 50; the number of heat sinks 10 is multiple, and the multiple heat sinks 10 are arranged along the axial direction of the flow guide 30, and the series member 50 is connected to the multiple heat sinks in sequence.

[0053] For example, a heat dissipation device includes multiple heat sinks 10, preferably arranged parallel to each other. Of course, there is a gap between adjacent heat sinks 10 to provide space for heat dissipation. Importantly, the connecting member 50 is a rib, and the main body of the heat sink 10 is a rectangular sheet structure. The aforementioned liquid distribution section 12 and liquid collection section 11 are respectively located at the bottom end of the top of the rectangular sheet structure. A corner of the multiple heat sinks 10 on the same straight line passes through a connecting member 50, so four corners correspond to four connecting members 50. The connecting members 50 connect the multiple heat sinks 10 on a heat dissipation device into a whole, enhancing the overall stability.

[0054] Optionally, it also includes at least two reinforcing members 20; at least one reinforcing member 20 is connected to a current guide 30, and the reinforcing member 20 is used to act on the transformer body 60 during installation to provide support and reinforcement for the current guide 30.

[0055] As mentioned above, one end of the current guide 30 is connected to the transformer body 60, and the heat sink 10 is disposed on the current guide 30. In order to ensure the stability of the connection between the current guide 30 and the transformer body 60, the reinforcement 20 in this embodiment plays the role of stabilizing and reinforcing the current guide 30.

[0056] For example, the reinforcement 20 can be selected as a support rod, with one end of the support rod connected to the current guide 30 and the other end connected to the transformer body 60.

[0057] Optionally, the number of reinforcement members 20 connected to one flow guide 30 is three, and the three reinforcement members 20 are arranged around the periphery of the flow guide 30.

[0058] Multiple guide elements 30 form multi-point support, enhancing the stability of the support.

[0059] Optionally, the reinforcement 20 includes a support side 21, a mounting side 22, and a hypotenuse 23; the support side 21, the mounting side 22, and the hypotenuse 23 together form a right triangle; or, the extensions of the support side 21, the mounting side 22, and the hypotenuse 23 together form a right triangle; the support side 21 is connected to the side wall of the current guide 30, and the mounting side 22 is used to connect to the transformer body 60 during installation.

[0060] In this embodiment, the reinforcement member 20 is structurally optimized by utilizing the stability characteristics of a triangle, thus providing better support for the guide member 30.

[0061] As can be seen from this embodiment, the reinforcement 20 in this embodiment can be a right-angled triangle structure, or have three sides that can form a triangle structure, so as to form a three-sided support.

[0062] Optionally, the reinforcement 20 further includes a first connecting edge 24, through which the support edge 21 and the inclined edge 23 are connected; and / or, the reinforcement 20 further includes a second connecting edge 25, through which the support edge 21 and the mounting edge 22 are connected.

[0063] For example, in the aforementioned triangular reinforcement 20, the included angle between the supporting side 21 and the hypotenuse 23 is 30°, the included angle between the mounting side 22 and the hypotenuse 23 is 60°, and the included angle between the supporting side 21 and the mounting side 22 is 90°. Thus, the first connecting side cuts off the sharp angle of 30° to form a flat surface, preventing damage from small sharp corners. Preferably, the first connecting side 24 is parallel to the mounting side 22. Furthermore, the supporting side 21 is connected to the side wall of the current guide 30, while the mounting side is connected to the side of the transformer body 60. Preferably, one end of the aforementioned current guide 30 is perpendicular to the side of the transformer body 60 (for ease of description, this right angle is named the mating right angle). In this way, when there is an error between the included angle of the support side 21 and the mounting side 22 and 90°, especially when the included angle of the support side 21 and the mounting side 22 is greater than 90°, the corner of the second connecting side 25 that should be a right angle will be cut off, so as to avoid the mismatch between the right angle of the reinforcement 20 and the mating right angle, ensure the connectivity, and avoid the mismatch problem.

[0064] Based on the same inventive concept, this utility model embodiment provides a transformer, the schematic diagram of which is shown below. Figure 3 As shown, it includes: a transformer body 60 and the aforementioned transformer heat dissipation device; the heat dissipation device is disposed on the side wall of the transformer body 60, the heat dissipation fins 10 are parallel to the side wall, and the flow guide 30 is connected to the interior of the transformer body 60.

[0065] In this embodiment, the transformer is an oil-immersed type. The aforementioned heat dissipation device is applied to the transformer. First, one end of the guide member 30 is vertically connected to the side wall of the transformer body 60. The guide member 30 is in communication with the inside of the transformer body 60. The insulating heat dissipation oil inside the transformer body 60 flows through the guide member 30 and the heat sink 10, and flows from top to bottom in the heat dissipation device to dissipate heat.

[0066] Optionally, it also includes a connector 40; in the horizontal direction, at least two heat dissipation devices of transformers are arranged side by side on one side wall of the transformer body 60, and the two ends of the connector 40 are each connected to the heat dissipation device of one transformer.

[0067] In this embodiment, there are two heat dissipation devices on one side wall of the transformer body 60. The number of heat dissipation devices can be set as needed, which will not be elaborated here.

[0068] The key feature is that the connector 40 can be made of structural steel. The connector 40 is located on the guide member 30 at the bottom of the two heat dissipation devices, thereby connecting the two heat dissipation devices into a whole and enhancing stability. Of course, the connector 40 can also be installed on the top of the two heat dissipation devices.

[0069] Those skilled in the art will understand that the steps, measures, and schemes in the various operations, methods, and processes discussed in this utility model can be alternated, modified, combined, or deleted. Furthermore, other steps, measures, and schemes in the various operations, methods, and processes discussed in this utility model can also be alternated, modified, rearranged, decomposed, combined, or deleted. Furthermore, the steps, measures, and schemes in the prior art that are similar to those disclosed in this utility model can also be alternated, modified, rearranged, decomposed, combined, or deleted.

[0070] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0071] 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 technical features indicated. 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, unless otherwise stated, "a plurality of" means two or more.

[0072] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0073] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0074] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0075] The above description is only a partial embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A heat dissipation device for a transformer, characterized in that, include: At least one heat sink (10) and at least two airflow guides (30); One end of each of the two flow guides (30) is used to be connected to the side wall of the transformer body (60) during installation, and the heat sinks (10) are respectively disposed on the two flow guides (30); in, In the vertical direction, the bottom of the heat sink (10) is provided with a liquid collection part (11) as the low position of the heat sink (10), and at least one of the flow guides (30) is connected to the liquid collection part (11); And / or, in the vertical direction, the top of the heat sink (10) is provided with a liquid distribution section (12) as the high position of the heat sink (10), the liquid distribution section (12) extends from top to bottom toward the side of the heat sink (10), and at least one of the flow guides (30) is connected to the liquid distribution section (12). The heat sink (10) and the flow guide (30) are internally connected to form a channel for the passage of heat dissipation medium.

2. The heat dissipation device for a transformer according to claim 1, characterized in that, The liquid collection section (11) includes two liquid collection surfaces (111), which converge from two opposite sides of the heat sink (10) toward the lower part of the center of the heat sink (10) to form a liquid collection position below the center of the heat sink (10), and at least one of the flow guides (30) is connected to the liquid collection position.

3. The heat dissipation device for a transformer according to claim 1, characterized in that, The liquid distribution section (12) includes two liquid distribution surfaces (121), which converge from two opposing sides of the heat sink (10) toward the center of the heat sink (10) to form a liquid distribution position above the center of the heat sink (10), and at least one of the flow guides (30) is connected to the liquid distribution position.

4. The heat dissipation device for a transformer according to any one of claims 1-3, characterized in that, It also includes a tandem component (50); The number of heat sinks (10) is multiple, and the multiple heat sinks (10) are arranged along the axial direction of the flow guide (30). The series member (50) is connected to the multiple heat sinks in sequence.

5. The heat dissipation device for a transformer according to claim 1, characterized in that, It also includes at least two reinforcement components (20); At least one of the reinforcing members (20) is connected to one of the current guides (30), the reinforcing members (20) being used to act on the transformer body (60) during installation to provide support and reinforcement for the current guides (30).

6. The heat dissipation device for a transformer according to claim 5, characterized in that, The number of reinforcement members (20) connected to one of the flow guides (30) is three, and the three reinforcement members (20) are arranged around the periphery of the flow guide (30).

7. The heat dissipation device for a transformer according to claim 6, characterized in that, The reinforcement member (20) includes a support edge (21), a mounting edge (22), and a bevel (23); The supporting edge (21), the mounting edge (22), and the hypotenuse (23) together form a right triangle; or, the extensions of the supporting edge (21), the mounting edge (22), and the hypotenuse (23) together form a right triangle. The supporting edge (21) is connected to the side wall of the guide (30), and the mounting edge (22) is used to act on the transformer body (60) during installation.

8. The heat dissipation device for a transformer according to claim 7, characterized in that, The reinforcement member (20) further includes a first connecting edge (24), and the support edge (21) and the inclined edge (23) are connected through the first connecting edge (24); And / or, the reinforcement (20) further includes a second connecting edge (25), through which the support edge (21) and the mounting edge (22) are connected.

9. A transformer, characterized in that, Includes a transformer body (60) and a heat dissipation device for the transformer as described in any one of claims 1-8; The heat dissipation device is disposed on the side wall of the transformer body (60), the heat sink (10) is parallel to the side wall, and the flow guide (30) is connected to the interior of the transformer body (60).

10. The transformer according to claim 9, characterized in that, It also includes connectors (40); In the horizontal direction, at least two heat dissipation devices of the transformer are arranged side by side on one side wall of the transformer body (60), and the two ends of the connector (40) are each connected to a heat dissipation device of the transformer.

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