CN210722685U - A box frame splicing piece that is easy to dissipate heat and its fuel tank - Google Patents

Abstract

The utility model discloses a box frame splicing piece which is easy to dissipate heat, which is used for splicing multiple pieces into a box frame, and comprises a splicing body. A heat dissipation gap is formed therebetween, the heat dissipation fins are provided with an oil passage cavity, and the cross section of the oil passage cavity is in the shape of a long strip extending outward. The utility model has the advantages of high heat dissipation efficiency, fast heat dissipation and less heat loss.

Description

A box frame splicing piece that is easy to dissipate heat and its fuel tank

technical field

The utility model relates to the technical field of transformers, in particular to a box-frame splicing piece that is easy to dissipate heat and an oil tank thereof.

Background technique

The transformer oil tank is an important component of the transformer. Now the transformer oil tank we use has a lot of space inside the bottom, which not only increases the space of the transformer, but also wastes the transformer oil filled inside. The production process is also very cumbersome and affects The production efficiency is also inconvenient for transportation and handling.

Some of the existing transformer oil tanks on the market have adopted a splicing structure, and transport multiple box and frame splices to the destination and spliced into a box and assembled with other components to form a fuel tank, but the existing box and frame splices have a simple structure. , The heat dissipation effect is poor.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a box frame splicing piece and its fuel tank which are easy to dissipate heat in view of the above problems existing in the prior art.

The purpose of the utility model can be achieved by the following technical solutions: a box frame splicing piece that is easy to dissipate heat, used for splicing multiple pieces into a box frame, including a splicing body, and a plurality of radiating fins are arranged on the outer side walls of the splicing body. A heat dissipation gap is formed between two adjacent heat dissipation fins, and the heat dissipation fin has an oil passage cavity, and the cross section of the oil passage cavity is in the shape of a long strip extending outward.

The box frame in the utility model is formed by splicing a plurality of box frame splices, so that the specifications of the fuel tank can be adjusted according to actual needs; the box frame is produced in a modular manner, which is convenient for processing, and the extrusion die is extruded at one time; the transportation cost is greatly reduced After arriving at the destination, the assembly can be completed by splicing multiple box frame splices; the setting of the heat dissipation fins helps to increase the heat dissipation area of the box frame splices, so as to facilitate the timely transfer of the heat in the transformer oil to the air , the heat dissipation effect is good; the transformer oil enters the oil inlet cavity through the oil passage, which can accommodate more transformer oil than the traditional transformer oil tank, which helps to improve the heat dissipation effect of the transformer components; the transformer oil entering the oil cavity Fully contact with the inner wall of the heat dissipation fins, the heat dissipation effect of the heat dissipation fins on the transformer oil is improved, and the heat in the transformer oil in the oil-passing cavity is directly transferred to the heat dissipation fins, without passing through the oil tank wall, with high heat exchange efficiency and good heat dissipation effect. ;By setting the cross section of the oil-passing cavity to be a long strip, compared with the traditional circular or square structure, the strip-shaped shape increases the unit contact area between the transformer oil in the oil-passing cavity and the oil-passing cavity, and increases the heat absorption area The heat exchange efficiency is improved, and the long strip can transfer heat to a position farther away from the fuel tank, preventing heat from accumulating around the fuel tank and improving heat dissipation efficiency.

The two ends of the splicing body are respectively provided with a splicing part and a splicing slot, the splicing part can be inserted into the splicing slot of another splicing body to connect the two splicing bodies, the splicing part includes an inserting part and an anti-falling part, and the splicing slot includes a slot and a splicing part. Anti-drop groove matched with anti-drop-off part.

Several oil grooves are continuously arranged on the inner side wall of the splicing body, and the oil grooves are used to increase the heat absorption area of the inner side wall of the splicing body.

The oil passage includes an oil inlet and an oil outlet respectively opened on the upper and lower sides of the splicing body.

Both the oil inlet and the oil outlet extend in a straight strip shape along the height direction of the spliced body.

A plurality of auxiliary fins are arranged on the outer side wall of the spliced body, and the auxiliary fins are used to increase the heat dissipation area of the outer side wall of the spliced body.

The auxiliary fins and the heat dissipation fins are arranged staggered in sequence along the length direction of the spliced body.

The auxiliary fins protrude outward to 1/4 of the heat dissipation fins.

A plurality of second heat dissipation fins are symmetrically arranged on both sides of the heat dissipation fin, and a heat dissipation groove is formed at intervals between two adjacent second heat dissipation fins, and the second heat dissipation fins are used to increase the heat dissipation of the heat dissipation fins. area.

The box frame splicing piece is made of aluminum alloy material.

Compared with the prior art, the utility model has the advantages of high heat dissipation efficiency, fast heat dissipation and less heat loss.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

Figure 2 is a cross-sectional view of the present invention.

FIG. 3 is a partial enlarged schematic view of the position A in FIG. 2 .

FIG. 4 is a partial enlarged schematic view of B in FIG. 2 .

In the figure, 1, splicing body; 2, cooling fins; 21, cooling gap; 3, oil passage; 4, oil passage; 41, oil inlet; 42, oil outlet; 5, oil groove; 6, auxiliary Fins; 7. The second cooling fin; 8. The cooling groove; Heat-absorbing fins; 131, insertion part; 132, anti-dropping part; 141, slot; 142, anti-dropping groove.

Detailed ways

The following are specific embodiments of the present utility model combined with the accompanying drawings to further describe the technical solutions of the present utility model, but the present utility model is not limited to these embodiments.

As shown in Figure 1-4, a box frame splicing piece with easy heat dissipation is used for splicing multiple pieces into a box frame, including a splicing body 1, and a plurality of heat dissipation fins 2 are integrally formed on the outer side wall of the splicing body 1 to dissipate heat. The fins 2 extend along the direction of the spliced body 1, and a heat dissipation gap 21 is formed between two adjacent heat dissipation fins 2. The heat dissipation fin 2 has an oil passage 3 along its height direction, and the cross section of the oil passage 3 is outward. In the shape of an elongated strip, the inner side wall of the splicing body 1 is provided with an oil passage 4 which is connected to the oil cavity 3 .

In further detail, several oil grooves 5 are continuously arranged on the inner side wall of the splicing body 1. The oil grooves 5 are used to increase the heat absorption area of the inner side wall of the splicing body 1. The heat area becomes larger, so that the transformer oil can quickly and efficiently transfer the heat in the oil to the splicing body 1, and the heat dissipation effect is improved; and when the transformer oil flows along the side wall of the splicing body, due to the arrangement of the oil groove, the flow rate of the transformer oil increases. Improve the fluidity of the transformer oil to help the heat dissipation of the transformer oil; through the continuous arrangement of the oil tank, the heat absorption area of the side wall of the spliced body is doubled, so that the heat dissipation effect is better.

In further detail, the oil passage 4 includes an oil inlet 41 and an oil outlet 42 respectively opened on the upper and lower sides of the splicing body 1. When dissipating heat, the transformer oil in the oil tank flows upward due to the heat, and the pressure of the transformer oil above increases. It enters the oil passage 3 through the oil inlet 41, and the transformer oil in the oil passage 3 flows downward under the action of pressure and is discharged from the oil outlet 42 below and returns to the oil tank. When flowing from top to bottom, the contact with the inner wall of the heat dissipation pipe 2 is relatively sufficient, the heat absorption area is large, and the heat dissipation effect of the transformer oil is good; the transformer oil in the oil tank and the transformer oil in the oil passage 3 form convection to help dissipate heat; the transformer oil The movement direction in the oil passage is from top to bottom, and the gas in the heat dissipation gap 21 flows upward after being heated, and convection is formed between the transformer oil and the air, and the heat dissipation efficiency is further improved; and the convection of the transformer oil in the oil tank does not require a driver It can be realized by driving, saving energy consumption and good heat dissipation effect.

In further detail, the oil inlet 41 and the oil outlet 42 both extend in a straight shape along the height direction of the spliced body 1, which is helpful for the rapid inflow and outflow of the transformer oil.

In further detail, the outer side wall of the splicing body 1 is integrally formed with a plurality of auxiliary fins 6, the auxiliary fins 6 extend along the height direction of the splicing body 1, and the auxiliary fins 6 are used to increase the heat dissipation area of the outer side wall of the splicing body 1, Thus, the heat exchange efficiency between the spliced body 1 and the air is improved.

In more detail, the auxiliary fins 6 and the heat dissipation fins 2 are alternately arranged along the length direction of the spliced body 1 , so that the overall heat exchange efficiency of the spliced body 1 is improved and the heat dissipation is uniform.

In further detail, the auxiliary fins 6 protrude outward to 1/4 of the heat dissipation fins 2, so that the heat dissipation ends of the auxiliary fins 6 and the heat dissipation fins 2 are in two different positions, so that the auxiliary fins 6 and the heat dissipation fins are in two different positions. The fins 2 can be maintained in a better heat dissipation state.

In further detail, a plurality of second heat dissipation fins 7 are integrally formed on both sides of the heat dissipation fin 2 symmetrically, and a heat dissipation groove 8 is formed at intervals between two adjacent second heat dissipation fins 7, and the second heat dissipation fins 7 are used to increase The heat dissipation area of the heat dissipation fins 2 is increased, thereby improving the heat exchange efficiency between the heat dissipation fins 2 and the air.

In further detail, the heat dissipation end of the heat dissipation fin 2 is connected with a third heat dissipation fin 12, the third heat dissipation fin 12 extends along the height direction of the heat dissipation fin 2 and is integrally formed with the heat dissipation fin 2, and the third heat dissipation fin 12 and the heat dissipation fin 2 are integrally formed. The heat dissipation fins 2 are arranged perpendicular to each other, and the third heat dissipation fins 12 are used to increase the heat dissipation area of the heat dissipation fins 2 and improve the heat exchange efficiency of the heat dissipation fins 2 .

In further detail, the two ends of the splicing body 1 are respectively provided with a splicing part 13 and a splicing groove 14, the splicing part 13 can be inserted into the splicing groove 14 of another splicing body 1 to connect the two splicing bodies 1, and the splicing part 13 includes an inserting part 131. And the anti-separation part 132, the splicing groove 14 includes a slot 141 and an anti-separation groove 142 which is matched with the anti-separation part 132. When splicing, the two splicing bodies 1 are staggered up and down, so that the splicing part 13 is aligned with the splicing groove 14 and is aligned. Forcefully press the splicing body 1 at the higher position to insert the splicing part 13 into the splicing slot 14, at this time the inserting part 131 is inserted into the slot 141, and the anti-dropping part 132 is inserted into the anti-dropping slot 142. The cooperation of the grooves 141 facilitates the positioning of the two splicing bodies 1 when they are spliced; the cooperation of the anti-detachment portion 132 and the anti-detachment groove 142 prevents the two splicing bodies 1 from being separated after splicing, and the two splicing bodies 1 are not easily disassembled and installed. more solid.

Preferably, two or more heat-absorbing fins 15 are symmetrically arranged on both sides of the inner side wall of the splicing body 1. The heat-absorbing fins 15 extend along the height direction of the splicing body 1. The fins 15 can be used as a base to avoid wear caused by the contact between the oil tank 5 and the ground, and affect the flow of transformer oil; and the heat-absorbing fins 15 can increase the heat-absorbing area of the inner side wall of the splicing body 1, and the heat-absorbing fins 15 extend into The inside of the transformer oil helps to improve the heat absorption efficiency of the transformer oil, thereby improving the heat dissipation effect of the transformer oil.

To further elaborate, the box frame splicing piece is made of aluminum alloy material, the aluminum alloy has good thermal conductivity, which helps the temperature rise. Compared with traditional metal materials, it has better heat dissipation, noise reduction and energy reduction (current, load, eddy current loss, Magnetic field, etc.) loss effect; aluminum alloy is light in weight, easy to transport, the transportation cost is further reduced, and it is convenient for workers to assemble it; aluminum alloy has good anti-corrosion performance, and it is not easy to be corroded by seawater when it is exported overseas; aluminum resources are abundant and have high recycling value. , easy to process.

Preferably, the aluminum alloy is a nano-aluminum alloy composite material, and the nano-aluminum alloy composite material has the advantages of light weight, high strength, high rigidity, high shear strength, small thermal expansion, high thermal stability, excellent electrical conductivity, thermal conductivity, wear resistance, resistance to eclipse and other effects.

Preferably, the shape of the box frame after the box frame splicing piece is spliced is one of a square, a circle, and a rectangle.

Preferably, the cross-sections of the fins mentioned in this embodiment are all of type 1.

The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or replace them in similar ways, but will not deviate from the spirit of the present invention or go beyond the appended claims the defined range.

Although the term is used extensively in this paper, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; it is contrary to the spirit of the present invention to interpret them as any kind of additional limitations.

Claims (10)

1. A box frame splicing piece that is easy to dissipate heat, which is used for splicing multiple pieces into a box frame, characterized in that it comprises a splicing body (1), and the outer side wall of the splicing body (1) is provided with a plurality of cooling fins ( 2), a heat dissipation gap (21) is formed between two adjacent heat dissipation fins (2), and the heat dissipation fin (2) has an oil passage cavity (3) therein, and the oil passage passage (3) has a cross section. In the shape of a long strip extending outward, the inner side wall of the splicing body (1) is provided with an oil passage (4) which is connected to the oil cavity (3). 2. A box frame splicing piece that is easy to dissipate heat according to claim 1, wherein the splicing body (1) is provided with a splicing part (13) and a splicing groove (14) at both ends, and the splicing part (1). 13) It can be inserted into the splicing groove (14) of another splicing body (1) to connect the two splicing bodies (1). 14) Including a slot (141) and a disengagement prevention groove (142) which is engaged with the disengagement prevention part (132). 3. A box frame splicing piece that is easy to dissipate heat according to claim 1, characterized in that: a plurality of oil grooves (5) are continuously provided on the inner side wall of the splicing body (1), and the oil grooves (5) are used for Increase the heat absorption area of the inner side wall of the spliced body (1). 4. A box frame splicing piece that is easy to dissipate heat according to claim 1, characterized in that: the oil passage (4) comprises oil inlets (41) respectively opened on the upper and lower sides of the splicing body (1) and outlet port (42). 5 . The box frame splicing piece with easy heat dissipation according to claim 4 , wherein the oil inlet ( 41 ) and the oil outlet ( 42 ) both extend in a straight line along the height direction of the splicing body ( 1 ). 6 . strip. 6. A box frame splicing piece that is easy to dissipate heat according to claim 1, characterized in that: a plurality of auxiliary fins (6) are provided on the outer side wall of the splicing body (1), and the auxiliary fins ( 6) It is used to increase the heat dissipation area of the outer side wall of the splicing body (1). 7 . The box-frame splicing piece with easy heat dissipation according to claim 6 , wherein the auxiliary fins ( 6 ) and the heat dissipation fins ( 2 ) are arranged staggered in sequence along the length direction of the spliced body ( 1 ). 8 . 8 . The box-frame splicing piece that is easy to dissipate heat according to claim 6 , wherein the auxiliary fins ( 6 ) protrude outward to 1/4 of the heat dissipating fins ( 2 ). 9 . 9. A box-frame splicing piece with easy heat dissipation according to claim 1, characterized in that: the heat dissipation fins (2) are symmetrically provided with a plurality of second heat dissipation fins (7) on both sides, and adjacent two Heat dissipation grooves (8) are formed at intervals between the second heat dissipation fins (7), and the second heat dissipation fins (7) are used to increase the heat dissipation area of the heat dissipation fins (2). 10 . The box-frame splicing piece that is easy to dissipate heat according to claim 1 , wherein the box-frame splicing piece is made of an aluminum alloy material. 11 .

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