An adjustable-tilt finned heat sink

Abstract

The application discloses a sheet type radiator with adjustable inclination angle, which comprises a wind force sensor and an adjusting device, wherein the wind force sensor is arranged at an air outlet of the sheet type radiator and is in communication connection with the adjusting device; the sheet type radiator comprises a plurality of radiating fins, the radiating fins are fixed on a collecting pipe, the collecting pipe comprises an upper pipe and a lower pipe, the upper pipe is fixed on the top of the radiating fins, the lower pipe is fixed on the bottom of the radiating fins, the upper pipe comprises a fixed pipe, a movable pipe and an elastic hose, the fixed pipe comprises an inlet section, a connecting section and an outlet section, the connecting section is provided with a connecting groove, the movable pipe is connected in the connecting groove, one end of the elastic hose is connected with the inlet section, the other end of the elastic hose is connected with the outlet section, the elastic hose is connected with the radiating fins, and the lower pipe has the same structure as the upper pipe. The wind direction outside the transformer shell is detected by the wind force sensor, the signal is transmitted to a servo motor, and then the inclination angle of the radiating fins is controlled, so that the generation of cyclone is avoided and the rapid heat dissipation effect of the radiator is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformer, more particularly, it relates to a sheet type radiator with adjustable inclination angle. BACKGROUND

[0002] At present, most of the power transformers running on the power grid are oil-immersed transformers. In the operation process of the oil-immersed transformer, the energy consumption in the iron core and the winding is converted into heat. If the heat is not dissipated in time, it will affect the service life and stable operation of the transformer. Therefore, a pipeline with cooling oil inside is used to pass through the iron core and then connected to the radiator. The wind blown by the transformer fan exchanges heat with the surface of the radiator, carries away the heat and dissipates it into the atmosphere. Such circulation is repeated to achieve the purpose of cooling the transformer. The radiator is generally arranged in the transformer shell. An air outlet is arranged on the transformer shell corresponding to the position of the radiator. The hot air after heat exchange is blown out of the air outlet. However, when the horizontal wind outside the transformer shell blows through the air outlet, a cyclone is generated by the intersection of the hot air, which hinders the rapid circulation of the hot air. SUMMARY

[0003] The technical problem to be solved by the present application is that the air outlet direction of the radiator is single and is easily affected by the external wind direction of the transformer shell, which hinders the rapid dissipation of the hot air. Therefore, the present application provides a sheet type radiator with adjustable inclination angle, which can change the air outlet angle of the radiator according to the external wind direction, so as to facilitate the rapid dissipation of heat.

[0004] The technical scheme adopted by the present application to solve the technical problem is as follows:

[0005] A sheet type radiator with adjustable inclination angle, comprising a wind power sensor and an adjusting device, wherein the wind power sensor is arranged at the air outlet of the sheet type radiator, the wind power sensor transmits a wind direction signal to the adjusting device, and the adjusting device controls the inclination angle of the sheet type radiator after receiving the signal; the sheet type radiator is composed of a plurality of evenly spaced heat dissipation fins, and the plurality of heat dissipation fins are fixed on a collecting pipe; the collecting pipe comprises upper and lower pipes arranged in parallel and at intervals; the upper pipe is fixed to the top of the heat dissipation fin, and the lower pipe is fixed to the bottom of the heat dissipation fin; the upper pipe comprises a fixed pipe, a movable pipe and an extension hose; the fixed pipe comprises an inlet section, a connecting section and an outlet section; the connecting section is provided with a connecting groove along its axial direction; the movable pipe is connected in the connecting groove and is spliced with the fixed pipe to form a cavity for placing the extension hose; one end of the extension hose is sealingly connected with the inlet section, and the other end is sealingly connected with the outlet section; the extension hose in the cavity is connected with the heat dissipation fin; and the lower pipe has the same structure as the upper pipe.

[0006] Preferably, the inner wall of the inlet section is provided with an inlet annular groove, the inlet annular groove is coaxially arranged with the inlet section, the first expansion sealing joint is arranged at the end of the inlet section, and the first expansion sealing joint is arranged in the inlet annular groove.

[0007] Preferably, the inner wall of the outlet section is provided with an outlet annular groove, the outlet annular groove is coaxially arranged with the outlet section, the second expansion sealing joint is arranged at the end of the outlet section, and the second expansion sealing joint is arranged in the outlet annular groove.

[0008] Preferably, the movable pipe is provided with a semicircular cross section.

[0009] Preferably, the movable pipe is provided with an avoiding groove at both ends.

[0010] Preferably, the fin comprises a solid connecting portion and a hollow oil guiding portion, the solid connecting portion is welded with the movable pipe, the hollow oil guiding portion comprises an inlet oil collecting cavity, an outlet oil collecting cavity and a plurality of parallel and spaced oil guiding cavities, the top ends of the plurality of oil guiding cavities are communicated with the inlet oil collecting cavity, and the bottom ends of the plurality of oil guiding cavities are communicated with the outlet oil collecting cavity.

[0011] Preferably, the top of the fin is provided with an arc-shaped groove, the curvature of the arc-shaped groove is the same as the curvature of the outer wall of the movable pipe, and the arc-shaped groove is communicated with the inlet oil collecting cavity.

[0012] Preferably, the two sides of the fin are provided with reinforcing plates at the positions of the arc-shaped grooves, and a plurality of welding grooves are arranged on the reinforcing plates.

[0013] Preferably, the adjusting device comprises a servo motor, a first rocker arm, a second rocker arm and a connecting rod, the first rocker arm and the second rocker arm are arranged at both ends of the movable pipe and are connected with the movable pipe, the connecting rod is hingedly connected with the free ends of the first rocker arm and the second rocker arm at both ends, and the output shaft of the servo motor is in transmission connection with the connecting rod.

[0014] Preferably, the output shaft of the servo motor is fixedly connected with a driving piece, the connecting rod is provided with a groove for placing the driving piece, the driving piece comprises a rotating disc and symmetrically arranged protrusions, the protrusions are integrally arranged with the rotating disc, and the connection between the protrusions and the rotating disc is circularly arc-shaped.

[0015] The present application has the advantages that the wind direction outside the transformer shell is detected by the wind sensor, the signal is transmitted to the servo motor, and then the inclination angle of the fin is controlled, so that the generation of cyclone is avoided, and the rapid heat dissipation effect of the radiator is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The present application is a fin type radiator with adjustable inclination angle.

[0017] Figure 2 is a schematic view of a finned heat sink in an initial state;

[0018] Figure 3 is a schematic view of a finned heat sink in an initial state;

[0019] Figure 4 is a schematic view of a finned heat sink in an inclined state;

[0020] Figure 5 is a schematic view of a flexible hose mounted in a manifold;

[0021] Figure 6 is a schematic view of a fin;

[0022] Figure 7 is a schematic view of air blowing between two fins in an initial state;

[0023] Figure 8 is a schematic view of air blowing between two fins in an inclined state;

[0024] In the figure: 1, transformer housing; 11, through hole; 2, wind sensor; 3, adjusting device; 31, servo motor; 32, first rocker arm; 33, second rocker arm; 34, connecting rod; 35, driving piece; 351, convex tooth; 352, rotating disc; 4, fin; 41, solid connecting part; 42, hollow oil guiding part; 421, inlet oil collecting cavity; 422, outlet oil collecting cavity; 423, oil guiding cavity; 43, arc-shaped groove; 5, manifold; 51, upper pipe; 511, fixed pipe; 5111, inlet section; 51111, inlet annular slot; 51112, first expansion sealing joint; 5112, connecting section; 5113, outlet section; 51131, outlet annular slot; 51132, second expansion sealing joint; 512, movable pipe; 513, flexible hose; 52, lower pipe; 6, transformer fan. DETAILED DESCRIPTION

[0025] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0027] In the present application, the orientation such as "upper, lower" is generally directed to the direction shown in the drawings, or is directed to the vertical, perpendicular or gravity direction, unless otherwise stated; similarly, for the convenience of understanding and description, "left, right" is generally directed to the left and right shown in the drawings; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the present application.

[0028] According to Figures 1-8 As shown in the figure, an adjustable angle sheet type radiator is arranged in the transformer shell 1, the transformer shell 1 is provided with a ventilation opening, a wind sensor 2 is arranged at the position of the through hole 11 for detecting the wind direction outside the transformer shell 1, the wind sensor 2 is in communication connection with the adjusting device 3, the wind sensor 2 transmits the wind direction signal to the adjusting device 3, and the adjusting device 3 controls the inclination angle of the sheet type radiator after receiving the signal; the sheet type radiator is composed of a plurality of uniformly spaced heat dissipation fins 4, the plurality of heat dissipation fins 4 are fixed on the header pipe 5, the header pipe 5 includes the upper pipe 51 and the lower pipe 52 which are arranged in parallel and at intervals, the upper pipe 51 is fixed on the top of the heat dissipation fin 4, and the lower pipe 52 is fixed on the bottom of the heat dissipation fin 4, the upper pipe 51 includes the fixed pipe 511, the movable pipe 512 and the flexible hose 513, the fixed pipe 511 includes the inlet section 5111, the connecting section 5112 and the outlet section 5113, the connecting section 5112 is provided with a connecting groove along the axial direction, the movable pipe 512 is connected in the connecting groove and is spliced with the fixed pipe 511 to form a cavity for placing the flexible hose 513, one end of the flexible hose 513 is in sealed connection with the inlet section 5111, and the other end is in sealed connection with the outlet section 5113, the flexible hose 513 in the cavity is connected with the heat dissipation fin 4, the lower pipe 52 is the same in structure as the upper pipe 51, the cooling liquid enters from the upper pipe 51, flows through the heat dissipation fin 4 to be cooled, and then flows out from the lower pipe 52.

[0029] According to Figures 3-4 As shown in the figure, the adjusting device 3 includes a servo motor 31, a first rocker arm 32, a second rocker arm 33 and a connecting rod 34, the first rocker arm 32 and the second rocker arm 33 are arranged at both ends of the movable pipe 512 and are axially pinned with the movable pipe 512, the connecting rod 34 is hingedly connected with the free ends of the first rocker arm 32 and the second rocker arm 33 at both ends, and the output shaft of the servo motor 31 is in transmission connection with the connecting rod 34. The output shaft of the servo motor 31 is fixedly connected with a driving piece 35, the connecting rod 34 is provided with a groove for placing the driving piece 35, the driving piece 35 includes a rotating disc 352 and symmetrically arranged protrusions 351, the protrusions 351 are integrally arranged with the rotating disc 352, and the connection between the protrusions 351 and the rotating disc 352 is circularly transitioned.

[0030] The swing amplitude of the connecting rod 34 driven by the servo motor 31 is D, -15°≤D≤+15°, when the output shaft of the servo motor 31 rotates clockwise, the upper first rocker arm 32 drives the upper heat dissipation fin 4 to rotate clockwise, and the lower second rocker arm 33 drives the lower heat dissipation fin 4 to rotate counterclockwise. Figure 2 ,Figure 3 When the first rocker arm 32 is in the position shown in FIG. 6, the first rocker arm 32 pulls the movable pipe 512 to move right, the second rocker arm 33 located below pushes the movable pipe 512 to move left, the axial middle position of the movable pipe 512 is hinged with the shaft pin of the fixed pipe 511, so that the movable pipe 512 rotates relative to the fixed pipe 511, the rotating disc 352 is embedded in the groove, the convex teeth 351 are arranged to disperse the stress points of the rotating disc 352 and the connecting rod 34, so that the connection between the rotating disc 352 and the connecting rod 34 is more stable and firm, and errors between the rotation angle of the output shaft of the servo motor 31 and the rotation angle of the connecting plate are avoided.

[0031] According to Figure 5 As shown in FIG. 6, the inner wall of the inlet section 5111 is provided with an inlet annular cut groove 51111, the inlet annular cut groove 51111 is coaxially arranged with the inlet section 5111, the end of the flexible hose 513 arranged in the inlet section 5111 is connected with a first expansion sealing joint 51112, and the first expansion sealing joint 51112 is arranged in the inlet annular cut groove 51111; the inner wall of the outlet section 5113 is provided with an outlet annular cut groove 51131, the outlet annular cut groove 51131 is coaxially arranged with the outlet section 5113, the end of the flexible hose 513 arranged in the outlet section 5113 is connected with a second expansion sealing joint 51132, and the second expansion sealing joint 51132 is arranged in the outlet annular cut groove 51131; the cross section of the movable pipe 512 is arranged in a semi-ring shape, and both ends of the movable pipe 512 are provided with avoiding grooves.

[0032] Both ends of the flexible hose 513 are fixedly connected with both ends of the fixed pipe 511 through the first expansion sealing joint 51112 and the second expansion sealing joint 51132, the pipe wall of the flexible hose 513 is corrugated in cross section, when the fixed pipe 511 rotates, the flexible hose 513 is elongated, so that the cooling oil in the flexible hose 513 is prevented from leaking, a plurality of bypass outlets are arranged on the flexible hose 513 along the axial direction, sealing rings are arranged at the bypass outlets, the bypass outlets and the cooling fins 4 are one-to-one correspondingly arranged, so that the cooling oil in the flexible hose 513 can enter the cooling fins 4.

[0033] According to Figures 6-8 As shown in FIG. 6, the heat sink 4 includes a solid connecting part 41 and a hollow oil guiding part 42, the solid connecting part 41 is welded with the movable pipe 512, the hollow oil guiding part 42 includes an inlet oil collecting cavity 421, an outlet oil collecting cavity 422 and a plurality of parallel and spaced oil guiding cavities 423, the top ends of the plurality of oil guiding cavities 423 are communicated with the inlet oil collecting cavity 421, and the bottom ends of the plurality of oil guiding cavities 423 are communicated with the outlet oil collecting cavity 422. The top and bottom of the heat sink 4 are provided with arc-shaped grooves 43, the curvature of the arc-shaped grooves 43 is the same as the curvature of the outer wall of the movable pipe 512, and the arc-shaped grooves 43 are communicated with the inlet oil collecting cavity 421. The two sides of the heat sink 4 are provided with reinforcing plates at the positions of the arc-shaped grooves 43, and a plurality of welding grooves are arranged on the reinforcing plates.

[0034] The cross section of the oil guide cavity 423 is rectangular, the cross section thickness of the solid oil guide part is greater than the cross section thickness of the solid connecting part 41, the flow of the cooling oil and the heat dissipation area are increased, the heat dissipation is more efficient, the arc-shaped groove 43 is arranged to facilitate the connection of the heat dissipation fin 4 and the header 5, and the reinforcing plate is arranged to make the connection of the heat dissipation fin 4 and the header 5 more firm. When the heat dissipation fin 4 is inclined, the wind blown by the transformer fan 6 impacts the heat dissipation fin 4, and heat exchange with the heat dissipation fin 4 is better, so that the heat on the heat dissipation fin 4 is quickly dissipated.

[0035] In combination Figures 1-8 As shown in the figure, the wind direction outside the transformer housing 1 is detected by the wind sensor 2, the signal is transmitted to the servo motor 31, and then the inclination angle of the heat dissipation fin 4 is controlled, so as to avoid the generation of cyclone and improve the rapid heat dissipation effect of the radiator.

[0036] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0037] It should be noted that the terms "first", "second", and the like, as used in the specification and in the claims, are intended to modify a particular aspect of the application, but do not specifically limit the order or sequence of the aspects. It will be understood by those skilled in the art that data used herein can be interchanged, where appropriate, so that the embodiments of the application described herein can be practiced in other than the order illustrated or described herein.

[0038] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A fin-type radiator with adjustable tilt angle, characterized by: The invention comprises a wind sensor (2) and a regulating device (3), wherein the wind sensor (2) is arranged at the air outlet of the fin-type radiator, the wind sensor (2) transmits a wind direction signal to the regulating device (3), and the regulating device (3) controls the tilt angle of the fin-type radiator after receiving the signal; the fin-type radiator is composed of a plurality of fins (4) evenly spaced, the plurality of fins (4) are fixed on a collecting pipe (5), the collecting pipe (5) comprises an upper pipe (51) and a lower pipe (52) arranged in parallel and spaced, the upper pipe (51) is fixed on the top of the fin (4), the lower pipe (52) is fixed on the bottom of the fin (4), and the upper pipe (51) comprises a fixed The fixed pipe (511), the movable pipe (512) and the telescopic hose (513), the fixed pipe (511) comprising an inlet section (5111), a connecting section (5112) and an outlet section (5113), the connecting section (5112) being provided with a connecting groove along its axial direction, the movable pipe (512) being connected to the connecting groove and being spliced ​​with the fixed pipe (511) to form a cavity for accommodating the telescopic hose (513), one end of the telescopic hose (513) being sealedly connected to the inlet section (5111), and the other end being sealedly connected to the outlet section (5113), the telescopic hose (513) located in the cavity being connected to the heat sink (4), and the lower pipe (52) having the same structure as the upper pipe (51); An inlet annular groove (51111) is provided on the inner wall of the inlet section (5111), and the inlet annular groove (51111) is coaxially arranged with the inlet section (5111). The end of the telescopic hose (513) is placed at the inlet section (5111) and is connected to a first expansion sealing joint (51112), and the first expansion sealing joint (51112) is placed in the inlet annular groove (51111).

2. The fin-type radiator with adjustable tilt angle according to claim 1, characterized in that: An outlet annular groove (51131) is provided on the inner wall of the outlet section (5113), and the outlet annular groove (51131) is coaxially arranged with the outlet section (5113). The end of the telescopic hose (513) placed on the outlet section (5113) is connected to a second expansion sealing joint (51132), and the second expansion sealing joint (51132) is placed in the outlet annular groove (51131).

3. The fin-type radiator with adjustable tilt angle according to claim 1, characterized in that: The cross section of the movable tube (512) is arranged to be semi-annular.

4. The fin-type radiator with adjustable tilt angle according to claim 3 is characterized in that: Both ends of the moving tube (512) are provided with avoidance grooves.

5. The fin-type radiator with adjustable tilt angle according to claim 1, characterized in that: The heat sink (4) includes a solid connecting portion (41) and a hollow oil guide portion (42), wherein the solid connecting portion (41) is welded to the moving tube (512), and the hollow oil guide portion (42) includes an inlet oil collecting chamber (421), an outlet oil collecting chamber (422), and a plurality of parallel and spaced oil guide chambers (423), wherein the top ends of the plurality of oil guide chambers (423) are connected to the inlet oil collecting chamber (421), and the bottom ends of the plurality of oil guide chambers (423) are connected to the outlet oil collecting chamber (422).

6. The fin-type radiator with adjustable tilt angle according to claim 5, characterized in that: An arc-shaped groove (43) is provided on the top of the heat sink (4), the arc of which is aligned with the arc of the outer wall of the moving tube (512), and the arc-shaped groove (43) is in communication with the inlet oil collecting chamber (421).

7. The fin-type radiator with adjustable tilt angle according to claim 6, characterized in that: Reinforcement plates are provided on both sides of the heat sink (4) at the positions of the arc-shaped grooves (43), and a plurality of welding grooves are provided on the reinforcement plates.

8. The fin-type radiator with adjustable tilt angle according to claim 1, characterized in that: The regulating device (3) comprises a servo motor (31), a first rocker arm (32), a second rocker arm (33) and a connecting rod (34); the first rocker arm (32) and the second rocker arm (33) are distributed at both ends of a movable tube (512) and are both connected to the movable tube (512); the two ends of the connecting rod (34) are respectively hinged to the free ends of the first rocker arm (32) and the second rocker arm (33); and the output shaft of the servo motor (31) is transmission-connected to the connecting rod (34).

9. The fin-type radiator with adjustable tilt angle according to claim 8, characterized in that: A driving member (35) is fixedly connected to the output shaft of the servo motor (31), and a groove for accommodating the driving member (35) is provided on the connecting rod (34). The driving member (35) comprises a rotating disk (352) and symmetrically arranged protruding teeth (351). The protruding teeth (351) and the rotating disk (352) are integrally arranged, and a connection between the protruding teeth (351) and the rotating disk (352) forms an arc transition.

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