Power transformer with detachable heat dissipation structure

Abstract

The utility model relates to the technical field of power transformers, in particular to a power transformer with a detachable heat dissipation structure, which comprises a power transformer body, a convex body is arranged at the upper end of the power transformer body, oil conveying pipes are arranged on one side of the convex body, and the oil conveying pipes are transversely and uniformly arranged on one side of the convex body. An oil guide pipe is arranged at the lower ends of the oil conveying pipes, the bottom of the oil guide pipe is in through connection with the interior of the power transformer body through the oil conveying pipes, fixing mechanisms are fixed to the upper surfaces of the oil conveying pipes located at the upper ends of the oil guide pipe, and the multiple oil conveying pipes are arranged between the two fixing mechanisms; lower wing plates are arranged on the two sides of the lower pressing plate, the lower wing plates are fixedly connected with the upper wing plates through bolts, according to the improved power transformer, the cooling and heat dissipation structure is installed on one side of the power transformer body through a fixing mechanism, and the cooling and heat dissipation structure can be disassembled according to the environment temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of power transformers, in particular to a power transformer with a detachable heat dissipation structure. Background Art

[0002] The power transformer is a soft magnetic electromagnetic component with the functions of power transmission, voltage conversion and insulation isolation. The working principle of the power transformer is to use the principle of electromagnetic induction. By energizing the primary coil, the iron core in the transformer generates an alternating magnetic field, and then the secondary coil generates an induced electromotive force, thereby realizing the voltage change. There is a constant current flowing inside the working power transformer, and the current flow will cause heat to be generated. In order to avoid excessive temperature affecting the practical effect of the power transformer, the excess heat must be exported from the inside of the power transformer. Therefore, the power transformer needs to be installed with a cooling and heat dissipation device to realize heat transfer, but the working environment of the power transformer is diverse. In some environments, the power transformer can be automatically heat-exchanged without a cooling and heat dissipation device to achieve cooling of the power transformer. Currently, the cooling and heat dissipation devices of many power transformers are fixed on the upper end of the power transformer, which is difficult to disassemble.

[0003] In the process of realizing the present invention, the inventors found that the prior art has the following problems: 1. The cooling and heat dissipation devices of many current power transformers are fixed on the upper end of the power transformer, which is difficult to disassemble. For some low-temperature environments where the power transformer can automatically perform heat exchange without the need for a cooling and heat dissipation device, the cooling and heat dissipation device becomes a useless mechanism, which is easily damaged if left unused for a long time, resulting in a waste of function and resources; 2. The cooling and heat dissipation effect of many power transformers is poor, which affects the normal use of the power transformer. Utility Model Content

[0004] The purpose of the utility model is to provide a power transformer with a detachable heat dissipation structure to solve the problems raised in the above background technology. To achieve the above purpose, the utility model provides the following technical solutions: a power transformer with a detachable heat dissipation structure, comprising a power transformer body, a convex body is arranged at the upper end of the power transformer body, an oil pipeline is arranged on one side of the convex body, the oil pipelines are evenly arranged on one side of the convex body, an oil guide pipe is arranged at the lower end of the oil pipeline, the bottom of the oil guide pipe is connected to the inside of the power transformer body through the oil guide pipe, a fixing mechanism is fixed on the upper surface of the oil pipeline located at the upper end of the oil guide pipe, and a plurality of oil pipelines are arranged between the two fixing mechanisms;

[0005] The fixing mechanism comprises a lower pressing plate, lower wing plates are arranged on both sides of the lower pressing plate, the lower wing plates are fixedly connected to the upper wing plates by bolts, an upper pressing plate is fixed on one side of the upper wing plate, and a wetting mechanism is installed between the upper pressing plate and the lower wing plates;

[0006] The wetting mechanism includes an interface, one side of the interface is installed on the pipe mouth of the connecting pipe, the connecting pipe is arranged at the lower section of the longitudinal pipe, a transverse pipe is arranged at the upper end of the longitudinal pipe, a connecting block is installed on the side of the transverse pipe, an atomizing nozzle is arranged at the bottom of the connecting block, a fixing plate is fixed at the upper end of the fixing mechanism, connecting plates are fixed on both sides of the fixing plate, a connecting plate is fixed on the side of the connecting plate away from the fixing plate, and a fan is installed at the bottom of the connecting plate.

[0007] Further preferably, the interior of the convex body is interconnected and connected with the interior of the power transformer body, and the horizontal height of the top wall inside the convex body is greater than the horizontal height of other positions in the oil cavity inside the power transformer body.

[0008] Further preferably, a longitudinal tube is provided on both sides of the transverse tube, and the vertical cross-section of the longitudinal tube and the transverse tube after being spliced ​​together is in an inverted U shape.

[0009] Further preferably, the interior of the connection block and the interior of the cross tube are interconnected and communicated with each other.

[0010] Further preferably, the radius of the circle enclosed by the upper pressing plate and the lower pressing plate is equal to the cross-sectional radius of the transverse tube.

[0011] Further preferably, the multiple fans are equidistantly arranged at the bottom of the connecting plate, the fan plane forms an angle of 30° with the vertical line and the direction of the fan plane is biased towards the oil guide pipe.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the utility model, the cooling and heat dissipation structure is installed on one side of the power transformer body through a fixing mechanism, which is convenient for disassembly of the cooling and heat dissipation structure according to the ambient temperature, and is more flexible and convenient in practical use.

[0014] In the utility model, the vaporization of the atomized liquid absorbs heat, and the fan accelerates this process, thereby achieving heat dissipation of the power transformer with fewer resources, thereby ensuring the normal operation of the power transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0017] Figure 3 It is a structural schematic diagram of a partial enlarged view of the fixing mechanism of the utility model.

[0018] In the figure: 1. power transformer body; 101. convex body; 102. oil pipeline; 103. oil guide pipe; 2. wetting mechanism; 201. interface; 202. connecting block; 203. atomizing nozzle; 204. longitudinal pipe; 205. transverse pipe; 206. connecting pipe; 3. fixing mechanism; 301. upper pressure plate; 302. lower pressure plate; 303. upper wing plate; 304. lower wing plate; 4. fixing plate; 5. connecting plate; 6. connecting plate; 7. fan. DETAILED DESCRIPTION

[0019] 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 technical personnel in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 3 The utility model provides a technical solution: a power transformer with a detachable heat dissipation structure, including a power transformer body 1, a convex body 101 is arranged on the upper end of the power transformer body 1, an oil pipeline 102 is arranged on one side of the convex body 101, the oil pipeline 102 is evenly arranged on one side of the convex body 101, an oil guide pipe 103 is arranged at the lower end of the oil pipeline 102, the bottom of the oil guide pipe 103 is connected with the inside of the power transformer body 1 through the oil pipeline 102, a fixing mechanism 3 is fixed on the upper surface of the oil pipeline 102 at the upper end of the oil guide pipe 103, a plurality of oil pipelines 102 are arranged between the two fixing mechanisms 3, the fixing mechanism 3 includes a lower pressure plate 302, and lower wing plates 30 are arranged on both sides of the lower pressure plate 302. 4. The lower wing plate 304 is fixedly connected to the upper wing plate 303 by bolts, an upper pressure plate 301 is fixed on one side of the upper wing plate 303, a wetting mechanism 2 is installed between the upper pressure plate 301 and the lower wing plate 304, the wetting mechanism 2 includes an interface 201, one side of the interface 201 is installed on the pipe mouth of the connecting pipe 206, the connecting pipe 206 is arranged at the lower section of the longitudinal pipe 204, a transverse pipe 205 is arranged on the upper end of the longitudinal pipe 204, a connecting block 202 is installed on the side of the transverse pipe 205, an atomizing nozzle 203 is arranged at the bottom of the connecting block 202, a fixing plate 4 is fixed on the upper end of the fixing mechanism 3, connecting plates 5 are fixed on both sides of the fixing plate 4, a connecting plate 6 is fixed on the side of the connecting plate 5 away from the fixing plate 4, and a fan 7 is installed at the bottom of the connecting plate 6.

[0021] In this embodiment, Figure 1As shown, the interior of the convex body 101 is interconnected with the interior of the power transformer body 1, and the horizontal height of the top wall inside the convex body 101 is greater than the horizontal height of other positions in the oil cavity inside the power transformer body 1; the power transformer transfers heat through the cooling oil. Under the thermal siphon effect, the cooling oil with a higher temperature and a larger density will move upward, and the cooling oil with a lower temperature and a smaller density will move downward, causing the cooling oil with a higher temperature to be squeezed into the interior of the convex body 101, and flow through the convex body 101 to the oil pipe 102, and then enter the oil guide pipe 103 to dissipate heat, causing the cooling oil temperature to drop to the bottom of the oil guide pipe 103 and enter the oil cavity of the power transformer body 1 through the oil pipe 102, thereby realizing the circulation of the cooling oil.

[0022] In this embodiment, Figure 1 As shown, a longitudinal tube 204 is provided on both sides of the transverse tube 205, and the vertical cross-section after the longitudinal tube 204 and the transverse tube 205 are spliced ​​is an inverted U shape; a water pipe with a certain pressure is connected to the interface 201, and the water flows through the interface 201 in turn through the connecting tube 206, the longitudinal tube 204, the transverse tube 205, the longitudinal tube 204, the connecting tube 206, and the interface 201 to realize the input of cooling water.

[0023] In this embodiment, Figure 1 As shown, the interior of the connecting block 202 and the interior of the transverse tube 205 are interconnected; water flows through the transverse tube 205 and is sprayed from the atomizing nozzle 203 through the connecting block 202, and the atomized water vapor is more likely to adhere to the oil guide pipe 103 and vaporize. The vaporization of water needs to absorb heat, and the heat is transferred from the inside of the oil guide pipe 103 to the water vapor, thereby achieving cooling of the oil guide pipe 103.

[0024] In this embodiment, Figure 1 As shown, the radius of the circle enclosed by the upper pressure plate 301 and the lower pressure plate 302 is equal to the cross-sectional radius of the cross tube 205; the upper pressure plate 301 and the lower pressure plate 302 are responsible for fixing the cross tube 205. In certain low-temperature environments where the power transformer can be automatically heat-exchanged without a cooling device, the heat dissipation and cooling mechanism can be removed to avoid damage to the heat dissipation and cooling mechanism.

[0025] In this embodiment, Figure 1 As shown, multiple fans 7 are equidistantly arranged at the bottom of the connecting plate 6, the fan surface of the fan 7 forms an angle of 30° with the vertical line and the direction of the fan surface is biased towards the oil guide pipe 103; the fan 7 blows air at a horizontal angle of 60° to the oil guide pipe 103, which can accelerate the air circulation near the water vapor, thereby accelerating the evaporation of the water vapor and improving the cooling effect of the power transformer.

[0026] The use method and advantages of the utility model: When the power transformer with a detachable heat dissipation structure is used, the working process is as follows:

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, first, the power transformer conducts heat through the cooling oil. Under the thermal siphon effect, the cooling oil with higher temperature has a larger density and moves upward, while the cooling oil with lower temperature has a smaller density and moves downward, causing the cooling oil with higher temperature to be squeezed into the convex body 101, and flows to the oil pipe 102 through the convex body 101, and then enters the oil guide pipe 103 to dissipate heat, causing the cooling oil temperature to drop to the bottom of the oil guide pipe 103, and enter the oil cavity of the power transformer body 1 through the oil pipe 102. A water pipe with a certain pressure is connected to the interface 201. The water flows through the interface 201 and passes through the connecting pipe 206, the longitudinal pipe 204, the transverse pipe 205, the longitudinal pipe 204, the connecting pipe 206, and the interface 201 in sequence. The water flows through the transverse pipe 205 through the connecting pipe 206, the longitudinal pipe 204, the transverse pipe 205, the longitudinal pipe 204, the connecting pipe 206, and the interface 201. The connecting block 202 is sprayed out from the atomizing nozzle 203, and the atomized water vapor is more easily attached to the oil guide pipe 103 and vaporized. The vaporization of water needs to absorb heat, and the heat is transferred from the inside of the oil guide pipe 103 to the water vapor, thereby realizing the cooling of the oil guide pipe 103. The upper pressure plate 301 and the lower pressure plate 302 are responsible for fixing the cross pipe 205. In some low-temperature environments where the power transformer can automatically perform heat exchange without a cooling device, the heat dissipation and cooling mechanism can be removed to avoid damage to the heat dissipation and cooling mechanism. The fan 7 blows air to the oil guide pipe 103 at a horizontal angle of 60°, which can accelerate the airflow circulation near the water vapor, thereby accelerating the evaporation of the water vapor, improving the cooling effect of the power transformer, and thus ensuring the normal operation of the power transformer.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A power transformer with a detachable heat dissipation structure, comprising a power transformer body (1), characterized in that: A convex body (101) is provided at the upper end of the power transformer body (1), an oil delivery pipe (102) is provided on one side of the convex body (101), the oil delivery pipes (102) are evenly arranged laterally on one side of the convex body (101), an oil guide pipe (103) is provided at the lower end of the oil delivery pipe (102), the bottom of the oil guide pipe (103) is connected to the inside of the power transformer body (1) through the oil delivery pipe (102), a fixing mechanism (3) is fixed on the upper surface of the oil delivery pipe (102) located at the upper end of the oil guide pipe (103), and a plurality of oil delivery pipes (102) are provided between the two fixing mechanisms (3); The fixing mechanism (3) comprises a lower pressing plate (302), lower wing plates (304) are arranged on both sides of the lower pressing plate (302), the lower wing plates (304) are fixedly connected to the upper wing plates (303) by bolts, an upper pressing plate (301) is fixed to one side of the upper wing plate (303), and a wetting mechanism (2) is installed between the upper pressing plate (301) and the lower wing plate (304); The wetting mechanism (2) comprises an interface (201), one side of the interface (201) is mounted on the pipe mouth of a connecting pipe (206), the connecting pipe (206) is arranged at the lower section of the longitudinal pipe (204), a transverse pipe (205) is arranged at the upper end of the longitudinal pipe (204), a connecting block (202) is mounted on the side of the transverse pipe (205), an atomizing nozzle (203) is arranged at the bottom of the connecting block (202), a fixing plate (4) is fixed at the upper end of the fixing mechanism (3), connecting plates (5) are fixed on both sides of the fixing plate (4), a connecting plate (6) is fixed on the side of the connecting plate (5) away from the fixing plate (4), and a fan (7) is mounted at the bottom of the connecting plate (6).

2. The power transformer with a detachable heat dissipation structure according to claim 1, characterized in that: The interior of the convex body (101) is interconnected and connected with the interior of the power transformer body (1), and the horizontal height of the top wall inside the convex body (101) is greater than the horizontal height of other positions in the oil chamber inside the power transformer body (1).

3. The power transformer with a detachable heat dissipation structure according to claim 1, characterized in that: A longitudinal tube (204) is disposed on both sides of the transverse tube (205), and the vertical cross section of the longitudinal tube (204) and the transverse tube (205) after being spliced ​​together is in an inverted U shape.

4. The power transformer with a detachable heat dissipation structure according to claim 1, characterized in that: The interior of the connection block (202) and the interior of the cross pipe (205) are interconnected and communicated with each other.

5. The power transformer with a detachable heat dissipation structure according to claim 1, characterized in that: The radius of the circle enclosed by the upper pressing plate (301) and the lower pressing plate (302) is equal to the cross-sectional radius of the transverse tube (205).

6. The power transformer with a detachable heat dissipation structure according to claim 1, characterized in that: The multiple fans (7) are arranged at equal distances at the bottom of the connecting plate (6); the fan planes of the fans (7) form an angle of 30° with the vertical line, and the direction of the fan planes is biased towards the oil guide pipe (103).

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