Efficient heat dissipation oil-immersed transformer

Abstract

The utility model relates to the technical field of oil-immersed transformers, in particular to an efficient heat dissipation oil-immersed transformer which comprises a transformer body, the transformer body comprises a shell, a heat dissipation device is arranged on the outer surface of the shell, the heat dissipation device comprises a first fixing cover, the outer surface of the first fixing cover is movably connected with a second fixing cover, and the outer surface of the second fixing cover is movably connected with a heat dissipation device. A guide rail is fixedly connected to the outer surface of the second fixing cover, a guide groove is formed in the inner surface of the guide rail, and a heat dissipation piece is movably connected to the inner surface of the guide rail. Through the arrangement of the guide rail and the limiting piece, the heat dissipation piece can be connected in the guide rail in a sliding mode, heat generated by the shell is dissipated and cooled under the effect of the fan, the heat dissipation piece can be rapidly disassembled and assembled in the guide rail, and therefore the heat dissipation piece is convenient to disassemble and assemble. And therefore, the device can be cleaned more conveniently and quickly in the later period, and the maintenance efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-immersed transformers, in particular to an oil-immersed transformer with high-efficiency heat dissipation. Background Art

[0002] Oil-immersed transformer is a device currently used in industry and daily life to convert high voltage into low voltage. The voltage is proportionally stepped down by the ratio of the number of turns of the internal coil, and the magnetic field generated by electricity is magnified and expanded using the principle of electromagnetic induction to generate the voltage intensity we need. The use of oil-immersed transformer ensures that the voltage conversion will not be affected by the external magnetic field, making it more stable to use.

[0003] The Chinese utility model patent with the authorization announcement number CN 214897966 U discloses an oil-immersed transformer structure with high efficiency in heat dissipation. In view of the problem that the heat dissipation measures currently adopted for the oil-immersed transformer when it is working are poor in heat dissipation effect, the following scheme is proposed, which includes a transformer housing, one side of the transformer housing is set as an opening, a fixed cover is fixedly installed on one side of the transformer housing, two rotating shafts are rotatably installed in the fixed cover, a motor is fixedly installed on the rear side of the fixed cover, the rear end of the rotating shaft located above extends to the rear side of the fixed cover and is fixedly connected to the output shaft of the motor, and sprockets are fixedly installed on the front ends of the two rotating shafts. The utility model has a reasonable structural design, and can dissipate heat by blowing air through the reciprocating up and down movement of the fan blades, and cooperates with multiple heat dissipation fins to effectively improve its heat dissipation effect, and effectively solves the problem of overheating and damage of internal electrical components due to excessive temperature in the transformer.

[0004] Although the above-mentioned prior art solution fixes a fixed cover on one side of the transformer housing, and two rotating shafts are rotatably installed in the fixed cover to set heat dissipation fins, and heat dissipation is achieved by the reciprocating movement of the heat dissipation fins, the fixed cover is fixedly installed on the transformer housing, which makes it very inconvenient to disassemble, replace, repair and clean the fixed cover. When too much dust accumulates, the heat dissipation effect is reduced. Therefore, it is urgent to design an oil-immersed transformer with efficient heat dissipation to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an oil-immersed transformer with efficient heat dissipation, so as to solve the problem proposed in the above background technology that the fixed cover is fixedly installed on the shell of the transformer, which makes it very inconvenient to disassemble, replace, repair and clean the fixed cover, and when too much dust accumulates, the heat dissipation effect is reduced.

[0006] To achieve the above object, the utility model provides the following technical solution: an oil-immersed transformer with high efficiency in heat dissipation, comprising: a transformer, the transformer comprising a shell, and a heat dissipation device is provided on the outer surface of the shell;

[0007] The heat dissipation device comprises a first fixed cover, the outer surface of the first fixed cover is movably connected to the second fixed cover, the outer surface of the second fixed cover is fixedly connected to a guide rail, the inner surface of the guide rail is provided with a guide groove, the inner surface of the guide rail is movably connected to a heat dissipation element, the outer surface of the heat dissipation element is fixedly connected to a lifting rod, the inner surface of the heat dissipation element is fixedly connected to a fan, the inner surface of the heat dissipation element is provided with a movable groove, the outer surface of the heat dissipation element is movably connected to a limiting element, the outer surface of the limiting element is fixedly connected to a first support rod, the second support rod is provided inside the first support rod, the outer surface of the second support rod is movably connected to a spring column, and the outer surface of the first fixed cover is fixedly connected to a quick release device;

[0008] A quick release device, wherein the quick release device comprises a fixing block.

[0009] Preferably, a clamping block is fixedly connected to the bottom of the inward side of the first fixed cover, a clamping groove is provided at the bottom of the inward side of the second fixed cover, and the shell is arranged between the first fixed cover and the second fixed cover.

[0010] Preferably, the fixed blocks are in two groups and fixedly connected to the upper surface of the first fixed cover, the outer surface of the fixed block is movably connected with a connecting rod, a connecting groove is provided inside the connecting rod, one end of the connecting rod away from the fixed block is fixedly connected with a rotating block, the inside of the rotating block is rotatably connected with a rotating shaft, and both ends of the rotating shaft are movably connected with fixed seats.

[0011] Preferably, the guide rail is fixedly connected to the end surfaces of the first fixed cover and the second fixed cover, and the heat sink is slidably connected inside the guide rail.

[0012] Preferably, the center of the heat sink is hollow, the fan is fixedly connected to the center of the heat sink, the lifting rod is fixedly connected to the upper surface of the heat sink, and the movable grooves are formed in two groups and are opened inside the two ends of the heat sink.

[0013] Preferably, the limiting member is movably connected to the inner and outer ends of both sides of the heat sink, the spring column is fixedly connected to the inner side of the limiting member, and the side of the spring column away from the limiting member is fixedly connected to the inner wall of the heat sink.

[0014] Preferably, one end of the first support rod is fixedly connected to the inward side of the limit member, one end of the first support rod away from the limit member is movably connected to the inside of the second support rod, one end of the second support rod away from the first support rod is fixedly connected to the inner wall of the heat sink, and the spring column is sleeved on the outer sides of the first support rod and the second support rod.

[0015] Preferably, the fixing seats are in two groups fixedly connected to the upper surface of the second fixing cover, the rotating block is fixedly connected to the outer surface of the rotating shaft, and both ends of the rotating shaft are rotatably connected to the inside of the fixing seats.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. Through the setting of the guide rail and the limiter, the heat sink can be slidably connected to the inside of the guide rail. Under the action of the fan, the heat generated by the shell is dissipated and cooled, and the heat sink can be quickly disassembled and assembled inside the guide rail, so that the device can be cleaned more conveniently and quickly in the later stage, effectively improving the maintenance efficiency.

[0018] 2. By setting the connecting rod and the fixed block, the first fixed cover and the second fixed cover can be directly covered on the outside of the shell, and the connecting rod can be buckled on the outside of the fixed block to achieve quick connection between the first fixed cover and the second fixed cover. This device can be adjusted in multiple directions to achieve precise position and efficient heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a three-dimensional front view of the structure of the utility model;

[0020] Figure 2 It is a side cross-sectional schematic diagram of the structural heat sink of the utility model;

[0021] Figure 3 It is a three-dimensional schematic diagram of the partial connection structure of the first fixed cover and the second fixed cover of the utility model;

[0022] Figure 4 For this utility model Figure 3 Enlarged schematic diagram at point A in the middle.

[0023] In the figure: 1. transformer; 11. shell; 2. heat dissipation device; 21. first fixed cover; 22. second fixed cover; 23. guide rail; 24. guide groove; 25. heat dissipation element; 26. lifting rod; 27. fan; 28. movable groove; 29. ​​limiter; 210. first support rod; 211. second support rod; 212. spring column; 213. slot; 214. block; 3. quick release device; 31. fixed block; 32. connecting rod; 33. connecting groove; 34. rotating block; 35. rotating shaft; 36. fixed seat. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 The utility model provides an embodiment: an oil-immersed transformer with high efficiency in heat dissipation, comprising: a transformer 1, the transformer 1 comprising a housing 11, and a heat dissipation device 2 is arranged on the outer surface of the housing 11;

[0026] The heat dissipation device 2 includes a first fixed cover 21, the outer surface of the first fixed cover 21 is movably connected to the second fixed cover 22, the outer surface of the second fixed cover 22 is fixedly connected to the guide rail 23, the inner surface of the guide rail 23 is provided with a guide groove 24, the inner surface of the guide rail 23 is movably connected to the heat dissipation element 25, the outer surface of the heat dissipation element 25 is fixedly connected to the lifting rod 26, the inner surface of the heat dissipation element 25 is fixedly connected to the fan 27, the inner surface of the heat dissipation element 25 is provided with a movable groove 28, the outer surface of the heat dissipation element 25 is movably connected to the limiting element 29, the outer surface of the limiting element 29 is fixedly connected to the first support rod 210, the interior of the first support rod 210 is provided with a second support rod 211, the outer surface of the second support rod 211 is movably connected to the spring column 212, and the outer surface of the first fixed cover 21 is fixedly connected to the quick release device 3;

[0027] The quick release device 3 includes a fixing block 31 .

[0028] Furthermore, a clamping block 214 is fixedly connected to the bottom of the inner side of the first fixed cover 21, and a clamping groove 213 is provided at the bottom of the inner side of the second fixed cover 22. The shell 11 is arranged between the first fixed cover 21 and the second fixed cover 22. Through the arrangement of the clamping groove 213 and the clamping block 214, when installing the heat dissipation device 2, the first fixed cover 21 and the second fixed cover 22 can be quickly aligned, thereby effectively improving work efficiency.

[0029] Furthermore, the fixed blocks 31 are in two groups and fixedly connected to the upper surface of the first fixed cover 21. The outer surface of the fixed block 31 is movably connected with a connecting rod 32. A connecting groove 33 is provided inside the connecting rod 32. The end of the connecting rod 32 away from the fixed block 31 is fixedly connected with a rotating block 34. The rotating block 34 is rotatably connected with a rotating shaft 35 inside. Both ends of the rotating shaft 35 are movably connected with a fixed seat 36. Through the arrangement of the connecting rod 32 and the fixed block 31, when the first fixed cover 21 and the second fixed cover 22 are fitted together, they can effectively play a role of limiting and fixing, thereby preventing the heat dissipation device 2 from tipping over during use.

[0030] Furthermore, the guide rail 23 is fixedly connected to the two end surfaces of the first fixed cover 21 and the second fixed cover 22, and the heat sink 25 is slidably connected to the inside of the guide rail 23. Through the setting of the guide rail 23, the heat sink 25 can be limited to the outer surfaces of the first fixed cover 21 and the second fixed cover 22. The inner side of the heat sink 25 can form an airflow exchange with the transformer 1, and the first fixed cover 21 and the second fixed cover 22 on the inner side of the heat sink 25 are both hollow.

[0031] Furthermore, the center of the heat sink 25 is hollow, the fan 27 is fixedly connected to the center of the heat sink 25, the lifting rod 26 is fixedly connected to the upper surface of the heat sink 25, and the movable grooves 28 are opened in two groups at both ends of the heat sink 25. Through the setting of the lifting rod 26, a fulcrum can be formed when the heat sink 25 is pulled out from the guide rail 23, so that the heat sink 25 is easier to disassemble, and the fan 27 can form a gas flow on the outer surface of the shell 11 and the inner side of the first fixed cover 21 and the second fixed cover 22, thereby achieving a cooling effect.

[0032] Furthermore, the limiting member 29 is movably connected to the inner and outer ends of both sides of the heat sink 25, the spring column 212 is fixedly connected to the inner side of the limiting member 29, and the side of the spring column 212 away from the limiting member 29 is fixedly connected to the inner wall of the heat sink 25. Through the arrangement of the spring column 212 and the limiting member 29, under the characteristics of the spring column 212, the limiting member 29 can be pushed against the inner wall of the guide rail 23, thereby playing a role of limiting and fixing, so that the heat sink 25 can be firmly fixed on the outer surfaces of the first fixed cover 21 and the second fixed cover 22.

[0033] Furthermore, one end of the first support rod 210 is fixedly connected to the inward side of the limit member 29, and the end of the first support rod 210 away from the limit member 29 is movably connected to the inside of the second support rod 211. The end of the second support rod 211 away from the first support rod 210 is fixedly connected to the inner wall of the heat sink 25, and the spring column 212 is sleeved on the outside of the first support rod 210 and the second support rod 211. Through the arrangement of the second support rod 211 and the first support rod 210, the spring column 212 can be effectively prevented from deforming when subjected to force, thereby causing the spring column 212 to bend and be squeezed inside the heat sink 25, making the device unable to be used normally.

[0034] Furthermore, the fixed seat 36 is fixedly connected to the upper surface of the second fixed cover 22 in two groups, the rotating block 34 is fixedly connected to the outer surface of the rotating shaft 35, and the two ends of the rotating shaft 35 are rotatably connected to the inside of the fixed seat 36. Through the setting of the rotating shaft 35, when the fixed block 31 and the connecting rod 32 are not connected, the connecting rod 32 can be flipped to one side of the second fixed cover 22 through the rotating shaft 35. The material of the connecting rod 32 is a magnetic material, which can be effectively adsorbed on the surface of the second fixed cover 22.

[0035] Working principle: When in use, the card slot 213 and the card block 214 are connected to each other, so that the first fixed cover 21 and the second fixed cover 22 can be sleeved on the outer surface of the shell 11, and the connecting rod 32 is flipped by the rotating shaft 35, so that the connecting slot 33 opened inside the connecting rod 32 is sleeved on the outer surface of the fixing block 31, so that the connecting rod 32 can be pulled out of the fixing block 31, so that the first fixed cover 21 and the second fixed cover 22 are connected and fixed, and then the heat sink 25 is placed into the guide rail 23 through the guide slot 24. Under the action of the spring column 212, the spring column 212 will push the limit member 29 to be squeezed on the inner wall of the guide rail 23, thereby forming a limit fixing effect, and start the fan 27. Under the action of the fan 27, the heat generated by the shell 11 during operation will be discharged from the inside of the first fixed cover 21 and the second fixed cover 22 to the outside of the first fixed cover 21 and the second fixed cover 22 by the fan 27, thereby achieving the effect of efficient heat dissipation.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An oil-immersed transformer with high efficiency heat dissipation, comprising: A transformer (1), characterized in that the transformer (1) comprises a housing (11), and a heat dissipation device (2) is provided on the outer surface of the housing (11); A heat dissipation device (2), the heat dissipation device (2) comprising a first fixed cover (21), the outer surface of the first fixed cover (21) being movably connected to a second fixed cover (22), the outer surface of the second fixed cover (22) being fixedly connected to a guide rail (23), the inner surface of the guide rail (23) being provided with a guide groove (24), the inner surface of the guide rail (23) being movably connected to a heat dissipation element (25), the outer surface of the heat dissipation element (25) being fixedly connected to a lifting rod (26), the inner surface of the heat dissipation element (25) A fan (27) is fixedly connected, a movable groove (28) is provided on the inner surface of the heat sink (25), the outer surface of the heat sink (25) is movably connected to a limiting member (29), the outer surface of the limiting member (29) is fixedly connected to a first support rod (210), a second support rod (211) is provided inside the first support rod (210), the outer surface of the second support rod (211) is movably connected to a spring column (212), and the outer surface of the first fixed cover (21) is fixedly connected to a quick release device (3); A quick-release device (3), wherein the quick-release device (3) comprises a fixing block (31).

2. The oil-immersed transformer with high heat dissipation efficiency according to claim 1, characterized in that: A clamping block (214) is fixedly connected to the bottom of the inward side of the first fixed cover (21), a clamping groove (213) is provided at the bottom of the inward side of the second fixed cover (22), and the housing (11) is arranged between the first fixed cover (21) and the second fixed cover (22).

3. The oil-immersed transformer with high heat dissipation efficiency according to claim 1, characterized in that: The fixed blocks (31) are in two groups and fixedly connected to the upper surface of the first fixed cover (21); the outer surface of the fixed block (31) is movably connected with a connecting rod (32); a connecting groove (33) is provided inside the connecting rod (32); one end of the connecting rod (32) away from the fixed block (31) is fixedly connected with a rotating block (34); the rotating block (34) is rotatably connected with a rotating shaft (35) inside; and both ends of the rotating shaft (35) are movably connected with fixed seats (36).

4. The oil-immersed transformer with high heat dissipation efficiency according to claim 1, characterized in that: The guide rail (23) is fixedly connected to the surfaces of both ends of the first fixed cover (21) and the second fixed cover (22), and the heat sink (25) is slidably connected inside the guide rail (23).

5. The oil-immersed transformer with high heat dissipation efficiency according to claim 1, characterized in that: The center of the heat sink (25) is hollow, the fan (27) is fixedly connected to the center of the heat sink (25), the lifting rod (26) is fixedly connected to the upper surface of the heat sink (25), and the movable grooves (28) are formed in two groups and are opened inside the two ends of the heat sink (25).

6. The oil-immersed transformer with high heat dissipation efficiency according to claim 1, characterized in that: The limiting member (29) is movably connected to the inner and outer ends of both sides of the heat sink (25), the spring column (212) is fixedly connected to the inner side of the limiting member (29), and the side of the spring column (212) away from the limiting member (29) is fixedly connected to the inner wall of the heat sink (25).

7. The oil-immersed transformer with high heat dissipation efficiency according to claim 1, characterized in that: One end of the first support rod (210) is fixedly connected to the inward side of the limiting member (29); one end of the first support rod (210) away from the limiting member (29) is movably connected to the inside of the second support rod (211); one end of the second support rod (211) away from the first support rod (210) is fixedly connected to the inner wall of the heat sink (25); and the spring column (212) is sleeved on the outer sides of the first support rod (210) and the second support rod (211).

8. The oil-immersed transformer with high heat dissipation efficiency according to claim 3, characterized in that: The fixed seat (36) is fixedly connected to the upper surface of the second fixed cover (22) in two groups, the rotating block (34) is fixedly connected to the outer surface of the rotating shaft (35), and the two ends of the rotating shaft (35) are rotatably connected to the inside of the fixed seat (36).

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