Oil-immersed box-type transformer

Abstract

The utility model belongs to the technical field of transformers, and discloses an oil-immersed box-type transformer which comprises a protection piece and a heat dissipation piece, a hollow cavity is formed in the protection piece, and a transformer body is installed in the cavity; the heat dissipation piece comprises a heat absorption part used for absorbing heat of the transformer body and a heat dissipation part used for dissipating heat, the heat absorption part is installed in the cavity, located below the transformer body and makes contact with the transformer body, and the heat dissipation part is installed outside the protection piece and makes contact with the transformer body. According to the transformer, the heat absorption part is arranged in the protection part, the heat dissipation part is arranged outside the protection part, when the transformer body works to generate heat, heat generated when the transformer body works is absorbed through water in the heat absorption part, and the heat dissipation part is arranged outside the protection part; and water in the heat absorption part is conveyed into the heat dissipation part, so that the heat dissipation efficiency of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of transformer technology, specifically relating to an oil-immersed box-type transformer. Background Technology

[0002] Oil-immersed transformers are widely used in power systems due to their excellent insulation and heat dissipation capabilities. However, while oil-immersed transformers operate by immersing electrical components in hydraulic oil for heat dissipation, the heat ultimately dissipates through the transformer casing, resulting in limited cooling efficiency. For example, in the case of announcement number "CN214897952",... A Chinese patent for "U" discloses an oil-immersed box-type transformer, including a protective box. A support base is fixedly installed at the lower end of the protective box. A limit baffle is movably installed at the lower front end of the protective box via a rotating shaft. Sliding grooves are formed on both the left and right sides of the lower wall of the protective box, and a movable frame is slidably installed within both grooves. The upper end of the movable frame is detachably mounted on the oil-immersed transformer body. Through-hole heat dissipation slots are formed on both the left and right sides of the protective box. Cooling mechanisms are fixedly installed on both the left and right sides inside the protective box. Support rods are fixedly welded to the four corners of the upper end of the protective box. Splines are provided on the upper surface of the outer surface of the support rods. A retaining ring is fixedly installed on the upper part of the support rods and below the splines. The upper parts of the four support rods are detachably mounted on the protective mechanism via splines. This device uses the cooling mechanism to assist the transformer in heat dissipation. However, when the cooling mechanism is working, it requires a compressor for cooling. The compressor generates a large amount of heat, which still leads to a high internal temperature and reduces the device's heat dissipation efficiency. Utility Model Content

[0003] The purpose of this invention is to provide an oil-immersed box-type transformer to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an oil-immersed box-type transformer, including a protective component and a heat dissipation component, wherein a hollow cavity is formed inside the protective component, and the transformer body is installed inside the cavity;

[0005] The heat dissipation component includes a heat-absorbing part for absorbing heat from the transformer body and a heat dissipation part for dissipating heat. The heat-absorbing part is installed inside the cavity and is located below and in contact with the transformer body. The heat dissipation part is installed outside the protective component, and the liquid inlet of the heat dissipation part is connected to the liquid outlet of the heat-absorbing part, and the liquid outlet of the heat dissipation part is connected to the liquid inlet of the heat-absorbing part. A liquid transport channel for transporting water along a preset path is formed between the heat-absorbing part and the heat dissipation part.

[0006] Preferably, the heat sink further includes two symmetrically arranged mounting plates, which are symmetrically installed on one side of the protective component. Part of the heat sink is located between the two mounting plates. A through mounting groove is provided on the mounting plate, and a cooling fan is provided inside the mounting groove.

[0007] Preferably, the protective component includes a cabinet, one side of which is open to form a protective cavity, and two cabinet doors for shielding the protective cavity are symmetrically rotatably connected to one side of the cabinet. A top cover for shielding the transformer body is fixedly connected to the top of the cabinet.

[0008] Preferably, the heat dissipation part includes a second heat-conducting plate, the liquid outlet end of the second heat-conducting plate is connected to a return water pipe, and the liquid inlet end of the second heat-conducting plate is fixedly connected to a water outlet pipe. The second heat-conducting plate is fixedly connected to the outside of the protective component, and the heat dissipation plate is located between two mounting plates.

[0009] Preferably, the heat-absorbing part includes a first heat-conducting plate, which is fixedly connected to the inside of the protective cavity and located below the transformer body. The liquid outlet end of the first heat-conducting plate is fixedly connected to the liquid inlet end of the water outlet pipe, and a water inlet pipe is fixedly connected to the liquid inlet end of the first heat-conducting plate. A return water pipe is fixedly connected between the water inlet pipe and the liquid outlet end of the second heat-conducting plate.

[0010] Preferably, a plurality of heat dissipation plates are fixedly connected to one side of the second heat-conducting plate, and each heat dissipation plate has a plurality of heat dissipation holes.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) This utility model provides a heat-absorbing part inside the protective component and a heat-dissipating part outside the protective component. When the transformer body is working and generating heat, the heat generated by the transformer body is absorbed by the water inside the heat-absorbing part and transported to the heat-dissipating part through the water inside the heat-absorbing part. The heat is then dissipated through the heat-dissipating part, so that the device does not need to dissipate heat through the refrigeration mechanism. Therefore, the heat generated by the compressor during operation is avoided from affecting the normal operation of the transformer body, and the heat dissipation efficiency of the device is improved.

[0013] (2) When the present invention dissipates heat through the second heat-conducting plate, the heat of the second heat-conducting plate is absorbed by the heat dissipation plate and heat dissipation holes, and the air near the second heat-conducting plate and heat dissipation plate is guided by the heat dissipation fan, thereby improving the heat dissipation efficiency of the second heat-conducting plate and heat dissipation plate. Attached Figure Description

[0014] Figure 1 This is one of the perspective views of this utility model;

[0015] Figure 2 This is a second perspective view of the present invention;

[0016] Figure 3 This is a perspective view of the cabinet with the door removed.

[0017] Figure 4 for Figure 3 The front view;

[0018] Figure 5 This is one of the perspective views of the heat-conducting component of this utility model;

[0019] Figure 6 This is the second perspective view of the heat-conducting component of this utility model;

[0020] In the diagram: 1. Protective component; 11. Top cover; 12. Cabinet body; 13. Protective cavity; 14. Cabinet door; 2. Heat dissipation component; 21. First heat conduction plate; 22. Water inlet pipe; 23. Water outlet pipe; 24. Second heat conduction plate; 25. Mounting plate; 26. Mounting groove; 27. Cooling fan; 28. Heat dissipation plate; 29. ​​Return water pipe; 210. Heat dissipation hole; 3. Transformer body. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-6 As shown, this utility model provides the following technical solution:

[0023] An oil-immersed box-type transformer includes a protective component 1 and a heat dissipation component 2. The protective component 1 forms a hollow cavity, and the transformer body 3 is installed inside the cavity.

[0024] The heat dissipation component 2 includes a heat-absorbing part for absorbing heat from the transformer body 3 and a heat dissipation part for dissipating heat. The heat-absorbing part is installed inside the cavity and is located below the transformer body 3 and in contact with the transformer body 3. The heat dissipation part is installed outside the protective component 1, and the liquid inlet end of the heat dissipation part is connected to the liquid outlet end of the heat-absorbing part, and the liquid outlet end of the heat dissipation part is connected to the liquid inlet end of the heat-absorbing part. A liquid transport channel for transporting water along a preset path is formed between the heat-absorbing part and the heat dissipation part.

[0025] With the above technical solution, when personnel need to install the device, the protective component 1 is installed at the required position. After the protective component 1 is installed, the transformer body 3 is installed into the cavity inside the protective component 1. After the transformer body 3 is installed, the bottom of the transformer body 3 contacts the heat-absorbing part. Then, the circuit to be connected is connected to the transformer body 3. When the transformer body 3 is working and generating heat, the water inside the heat-absorbing part absorbs the heat generated by the transformer body 3 during operation. After the heat-absorbing part absorbs the heat, the water inside the heat-absorbing part flows to the heat-dissipating part. When the water flows to the heat-dissipating part, it dissipates heat through the heat-dissipating part, thereby reducing the temperature of the water inside the heat-dissipating part. After the temperature of the water inside the heat-dissipating part decreases, the water inside the heat-dissipating part flows back to the heat-absorbing part to recirculate, thereby continuously dissipating heat from the transformer body 3.

[0026] Specifically, in one embodiment, regarding the aforementioned heat sink 2, as... Figures 1-6 As shown, the heat sink 2 also includes two symmetrically arranged mounting plates 25. The two mounting plates 25 are symmetrically installed on one side of the protective component 1. Part of the heat sink is located between the two mounting plates 25. A through mounting groove 26 is provided on the mounting plate 25, and a cooling fan 27 is provided inside the mounting groove 26.

[0027] In this embodiment, when the heat dissipation part dissipates heat, the mounting plate 25 is supported by the protective member 1, the heat dissipation fan 27 is supported by the mounting plate 25, and the heat dissipation fan 27 works, so that the air near the heat dissipation part flows to the outside, thereby assisting the heat dissipation part in dissipating heat and improving the heat dissipation efficiency of the heat dissipation part.

[0028] In addition, regarding how protective component 1 protects the transformer body 3, such as... Figures 1-4 As shown, the protective component 1 includes a cabinet 12, one side of which is open to form a protective cavity 13, and two cabinet doors 14 for shielding the protective cavity 13 are symmetrically rotatably connected to one side of the cabinet 12. A top cover 11 for shielding the transformer body 3 is fixedly connected to the top of the cabinet 12.

[0029] In this embodiment, when personnel need to install the transformer body 3, they pull the cabinet door 14 to rotate the cabinet door 14 around the cabinet body 12 until the protective cavity 13 is fully exposed. Then, the transformer body 3 is installed inside the protective cavity 13. After the transformer body 3 is installed, the cabinet door 14 is pulled to rotate the cabinet door 14 back to its original position, thereby completely covering the protective cavity 13. The cabinet body 12 protects the transformer body 3, and the top cover 11 covers the top of the cabinet body 12.

[0030] Specifically, in one embodiment, regarding the aforementioned heat dissipation portion, such as Figures 1-6As shown, the heat dissipation part includes a second heat-conducting plate 24. The liquid outlet end of the second heat-conducting plate 24 is connected to a return water pipe 29, and the liquid inlet end of the second heat-conducting plate 24 is fixedly connected to a water outlet pipe 23. The second heat-conducting plate 24 is fixedly connected to the outside of the protective component 1, and the heat dissipation plate 28 is located between two mounting plates 25.

[0031] In this embodiment, after the water inside the heat-absorbing part absorbs heat, the water inside the heat-absorbing part is transported to the water outlet pipe 23, and then transported to the inside of the second heat-conducting plate 24 through the water outlet pipe 23. The heat of the water evaporates through the second heat-conducting plate 24. When the heat of the water decreases, the water inside the second heat-conducting plate 24 is discharged through the water return pipe 29, and then transported back to the inside of the heat-absorbing part through the water return pipe 29, thereby allowing the water to be recycled.

[0032] Furthermore, in this utility model, regarding the aforementioned heat-absorbing portion, as... Figures 1-6 As shown, the heat-absorbing part includes a first heat-conducting plate 21, which is fixedly connected to the inside of the protective cavity 13 and is located below the transformer body 3. The liquid outlet end of the first heat-conducting plate 21 is fixedly connected to the liquid inlet end of the water outlet pipe 23, and a water inlet pipe 22 is fixedly connected to the liquid inlet end of the first heat-conducting plate 21. A return water pipe 29 is fixedly connected between the water inlet pipe 22 and the liquid outlet end of the second heat-conducting plate 24.

[0033] In this embodiment, an external water pump is connected to the inlet pipe 22. After the return pipe 29 delivers water to the inlet pipe 22, the water is transported back to the interior of the first heat-conducting plate 21 through the inlet pipe 22. The water inside the first heat-conducting plate 21 absorbs the heat generated by the transformer body 3 during operation, thereby assisting the transformer body 3 in heat dissipation. When the temperature of the water inside the first heat-conducting plate 21 rises, the water is transported to the outlet pipe 23. The water is then transported to the second heat-conducting plate 24 for heat dissipation through the outlet pipe 23, and the water after its temperature has decreased is transported back to the inlet pipe 22 through the return pipe 29, thus allowing the water to be recycled.

[0034] When the second heat-conducting plate 24 dissipates heat, in order to improve the heat dissipation efficiency of the second heat-conducting plate 24, such as Figures 2-3 and Figures 5-6 As shown, a plurality of heat dissipation plates 28 are fixedly connected to one side of the second heat conduction plate 24, and each heat dissipation plate 28 has a plurality of heat dissipation holes 210.

[0035] In this embodiment, when the second heat-conducting plate 24 dissipates heat, the heat dissipation plate 28 and the heat dissipation hole 210 work together to enable the second heat-conducting plate 24 to dissipate heat more quickly.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oil-immersed box-type transformer, characterized in that: It includes a protective component (1) and a heat dissipation component (2). The protective component (1) forms a hollow cavity, and the transformer body (3) is installed inside the cavity. The heat dissipation component (2) includes a heat-absorbing part for absorbing heat from the transformer body (3) and a heat dissipation part for dissipating heat. The heat-absorbing part is installed inside the cavity and is located below the transformer body (3) and in contact with the transformer body (3). The heat dissipation part is installed outside the protective component (1), and the liquid inlet end of the heat dissipation part is connected to the liquid outlet end of the heat-absorbing part. The liquid outlet end of the heat dissipation part is connected to the liquid inlet end of the heat-absorbing part, and a liquid transport channel for transporting water along a preset path is formed between the heat-absorbing part and the heat dissipation part.

2. The oil-immersed box-type transformer according to claim 1, characterized in that: The heat sink (2) also includes two symmetrically arranged mounting plates (25). The two mounting plates (25) are symmetrically installed on one side of the protective component (1). Part of the heat sink is located between the two mounting plates (25). A through mounting groove (26) is provided on the mounting plate (25). A cooling fan (27) is provided inside the mounting groove (26).

3. An oil-immersed box-type transformer according to claim 1 or 2, characterized in that: The protective component (1) includes a cabinet (12), one side of which is open to form a protective cavity (13), and two cabinet doors (14) for shielding the protective cavity (13) are symmetrically rotatably connected on one side of the cabinet (12). A top cover (11) for shielding the transformer body (3) is fixedly connected to the top of the cabinet (12).

4. An oil-immersed box-type transformer according to claim 1 or 2, characterized in that: The heat dissipation part includes a second heat-conducting plate (24), the liquid outlet end of the second heat-conducting plate (24) is connected to a return water pipe (29), and the liquid inlet end of the second heat-conducting plate (24) is fixedly connected to a water outlet pipe (23). The second heat-conducting plate (24) is fixedly connected to the outside of the protective component (1), and the heat dissipation plate (28) is located between two mounting plates (25).

5. An oil-immersed box-type transformer according to claim 4, characterized in that: The heat-absorbing part includes a first heat-conducting plate (21), which is fixedly connected to the inside of the protective cavity (13) and is located below the transformer body (3). The liquid outlet end of the first heat-conducting plate (21) is fixedly connected to the liquid inlet end of the water outlet pipe (23), and the liquid inlet end of the first heat-conducting plate (21) is fixedly connected to a water inlet pipe (22). A return water pipe (29) is fixedly connected between the water inlet pipe (22) and the liquid outlet end of the second heat-conducting plate (24).

6. The oil-immersed box-type transformer according to claim 4, characterized in that: A plurality of heat dissipation plates (28) are fixedly connected to one side of the second heat conduction plate (24), and each heat dissipation plate (28) has a plurality of heat dissipation holes (210).

Images