Packaging shell of voltage transformer

Abstract

The utility model discloses a packaging shell of a voltage transformer, which comprises a transformer packaging shell, a mounting base is mounted at the lower end of the transformer packaging shell, mounting plates are mounted at the front end and the rear end of the mounting base, and a mounting device is fixedly mounted at the left part and the right part of the outer surface of the transformer packaging shell together. Mounting frame bodies are fixedly mounted at the left end and the right end of the mounting device, and heat dissipation devices are jointly mounted between the front inner walls and the rear inner walls of the two mounting frame bodies. According to the packaging shell of the voltage transformer, the fan on the heat dissipation device rotates to blow air, and the air is further blown to the heat conduction plate and is blown out from the ventilation holes in the mounting frame body, so that the heat dissipation speed of the heat conduction plate is increased, the heat dissipation effect of the packaging shell of the transformer is effectively improved, the service life of the transformer is prolonged, and the service life of the transformer is prolonged. And the protection frame is further arranged on the ventilation holes, so that external rainwater can be prevented from entering the mounting frame body through the ventilation holes.

Description

Technical Field

[0001] The utility model relates to the technical field of voltage transformers, in particular to a packaging shell of a voltage transformer. Background Technique

[0002] A voltage transformer is an instrument used to transform the voltage on a line. However, the purpose of a transformer to transform voltage is to transmit electric energy, so its capacity is very large, generally calculated in kilovolt-amperes or megavolt-amperes. While the purpose of a voltage transformer to transform voltage is mainly to supply power to measuring instruments and relay protection devices, to measure the voltage, power and electric energy of a line, or to protect valuable equipment, motors and transformers in the line when a fault occurs in the line. Therefore, the capacity of a voltage transformer is very small.

[0003] In order to ensure the sealing performance and insulation performance, most of the existing packaging shells of transformers tightly wrap various devices of the transformer therein. However, during the use of a voltage transformer, especially under some large current loads, the flow of current will cause the iron core of the voltage transformer to saturate. At this time, the magnetic flux density of the voltage transformer will decrease, resulting in a large current in the local winding, and then generating a large amount of heat. At the same time, during the use of a voltage transformer, if there is a local fault in the winding, the winding current will be too large, causing the iron core to saturate, so that the winding temperature will rise rapidly, and a large amount of heat will also be generated. In addition, if the ambient temperature is too high, it will also cause the voltage transformer to heat up, and the overheated temperature will further affect the use effect and service life of the voltage transformer. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a packaging shell of a voltage transformer, which can effectively solve the problem of poor heat dissipation of the packaging shell of the transformer in the background technique.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] The packaging shell of a voltage transformer includes a transformer packaging shell. An installation base is installed at the lower end of the transformer packaging shell. Installation plates are installed at the front end and the rear end of the installation base. An installation device is fixedly installed on the left part and the right part of the outer surface of the transformer packaging shell. Installation frames are fixedly installed at the left end and the right end of the installation device. A heat dissipation device is installed between the front inner wall and the rear inner wall of the two installation frames.

[0007] Preferably, the heat dissipation device includes a fan. Mounting blocks are fixedly installed at the front end and the rear end of the fan. Screw holes are formed at the opposite ends of the two mounting blocks. Mounting screws are installed at the left part of the front end and the left part of the rear end of the mounting frame body. A set of ventilation holes are formed at the right part of the front end and the right part of the rear end of the mounting frame body. Protective frames are installed at the right part of the front end and the right part of the rear end of the mounting frame body. The fan is fixedly installed in the mounting frame body through the mounting screws. The fan rotates to blow air, and the air then blows to the heat conduction plate and is blown out from the ventilation holes on the mounting frame body, thereby accelerating the heat dissipation speed of the heat conduction plate and effectively improving the heat dissipation effect of the mutual inductor encapsulation shell.

[0008] Preferably, the installation device includes a first fixing frame and a second fixing frame. Two protective plates are fixedly installed at the corresponding ends of the first fixing frame and the second fixing frame. The first fixing frame and the second fixing frame are respectively fixedly installed at the left part of the outer surface and the right part of the outer surface of the mutual inductor encapsulation shell. The first fixing frame, the second fixing frame and the protective plate therebetween can further strengthen and protect the mutual inductor encapsulation shell, and improve the protection performance of the mutual inductor encapsulation shell.

[0009] Preferably, a set of fixing grooves are formed at the left end and the right end of the mutual inductor encapsulation shell. A heat conduction plate is installed in each of the two sets of fixing grooves. A set of heat conduction plates are installed on both sides of the mutual inductor encapsulation shell. The heat conduction plate is designed in an I shape and one side extends into the mutual inductor encapsulation shell. When heat accumulates in the mutual inductor encapsulation shell, the heat conduction plate can quickly conduct the heat in the mutual inductor encapsulation shell.

[0010] Preferably, the two sets of ventilation holes are respectively located in the two protective frames.

[0011] Preferably, the heat conduction plate is in an I shape.

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

[0013] 1. A set of heat conduction plates are installed on both sides of the mutual inductor encapsulation shell. The heat conduction plate is designed in an I shape and one side extends into the mutual inductor encapsulation shell. When heat accumulates in the mutual inductor encapsulation shell, the heat conduction plate can quickly conduct the heat in the mutual inductor encapsulation shell. At this time, the fan on the heat dissipation device rotates to blow air, and the air then blows to the heat conduction plate and is blown out from the ventilation holes on the mounting frame body, thereby accelerating the heat dissipation speed of the heat conduction plate and effectively improving the heat dissipation effect of the mutual inductor encapsulation shell, increasing the service life of the mutual inductor. In addition, a protective frame is arranged on the ventilation hole. Cooperating with the mounting frame body, it can not only protect the fan and the heat conduction plate, but also prevent external rainwater from entering the mounting frame body through the ventilation hole. In addition, by loosening the mounting screws, the fan can be taken out of the mounting frame body, which is convenient for cleaning and replacing the fan.

[0014] 2. The first fixing bracket, the second fixing bracket on the installation device and the protective plate between them can further strengthen and protect the mutual inductor encapsulation shell, improving the protective performance of the mutual inductor encapsulation shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the encapsulation shell of the voltage mutual inductor of the present utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the heat dissipation device of the encapsulation shell of the voltage mutual inductor of the present utility model;

[0017] Figure 3 It is a schematic diagram of the overall structure of the installation device of the encapsulation shell of the voltage mutual inductor of the present utility model;

[0018] Figure 4 It is a schematic diagram of the overall structure of the mutual inductor encapsulation shell of the encapsulation shell of the voltage mutual inductor of the present utility model.

[0019] In the figure: 1. Mutual inductor encapsulation shell; 2. Heat dissipation device; 3. Installation device; 4. Installation base; 5. Installation plate; 6. Installation frame body; 20. Fan; 21. Installation block; 22. Screw hole; 23. Ventilation hole; 24. Installation screw; 25. Protective frame; 30. First fixing bracket; 31. Second fixing bracket; 32. Protective plate; 40. Fixing groove; 41. Heat conducting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] As Figures 1-4 shown, the encapsulation shell of the voltage transformer includes the transformer encapsulation shell 1. An installation base 4 is installed at the lower end of the transformer encapsulation shell 1. Installation plates 5 are installed at both the front end and the rear end of the installation base 4. An installation device 3 is fixedly installed jointly on the left part of the outer surface and the right part of the outer surface of the transformer encapsulation shell 1. Installation frames 6 are fixedly installed at both the left end and the right end of the installation device 3. A heat dissipation device 2 is installed jointly between the front inner wall and the rear inner wall of the two installation frames 6.

[0024] The heat dissipation device 2 includes a fan 20. Installation blocks 21 are fixedly installed at both the front end and the rear end of the fan 20. Screw holes 22 are opened at one end of the two installation blocks 21 facing away from each other. Installation screws 24 are installed at both the left part of the front end and the left part of the rear end of the installation frame 6. A group of ventilation holes 23 are opened at both the right part of the front end and the right part of the rear end of the installation frame 6. Protective frames 25 are installed at both the right part of the front end and the right part of the rear end of the installation frame 6. The fan 20 is fixedly installed in the installation frame 6 through the installation screws 24; the two groups of ventilation holes 23 are respectively located inside the two protective frames 25. The fan 20 rotates to blow air, and the air then blows to the heat conduction plate 41 and is blown out from the ventilation holes 23 on the installation frame 6, thereby accelerating the heat dissipation speed of the heat conduction plate 41 and effectively improving the heat dissipation effect of the transformer encapsulation shell 1.

[0025] The installation device 3 includes a first fixing frame 30 and a second fixing frame 31. Two protective plates 32 are fixedly installed at the corresponding ends of the first fixing frame 30 and the second fixing frame 31. The first fixing frame 30 and the second fixing frame 31 are respectively fixedly installed on the left part of the outer surface and the right part of the outer surface of the transformer encapsulation shell 1. Through the first fixing frame 30, the second fixing frame 31 and the protective plates 32 therebetween, the transformer encapsulation shell 1 can be further strengthened and protected, improving the protection performance of the transformer encapsulation shell 1.

[0026] A group of fixing grooves 40 are opened at both the left end and the right end of the transformer encapsulation shell 1. Heat conduction plates 41 are installed in the two groups of fixing grooves 40; the heat conduction plates 41 are in an I-shaped shape. A group of heat conduction plates 41 are installed on both sides of the transformer encapsulation shell 1. The heat conduction plates 41 are designed in an I-shaped shape and one side extends into the transformer encapsulation shell 1. When heat accumulates inside the transformer encapsulation shell 1, the heat conduction plates 41 can quickly conduct the heat inside the transformer encapsulation shell 1.

[0027] It should be noted that the present utility model is an encapsulation shell of a voltage transformer. The first fixing frame 30, the second fixing frame 31 on the installation device 3 and the protective plate 32 therebetween can further strengthen and protect the transformer encapsulation shell 1, improving the protection performance of the transformer encapsulation shell 1. A group of heat conduction plates 41 are installed on both sides of the transformer encapsulation shell 1. The heat conduction plates 41 are designed in an I shape and one side extends into the transformer encapsulation shell 1. When heat accumulates in the transformer encapsulation shell 1, the heat conduction plates 41 can quickly export the heat in the transformer encapsulation shell 1. At this time, the fan 20 on the heat dissipation device 2 rotates to blow air, and the air then blows to the heat conduction plates 41 and is blown out from the ventilation holes 23 on the mounting frame body 6, thereby accelerating the heat dissipation speed of the heat conduction plates 41, effectively improving the heat dissipation effect of the transformer encapsulation shell 1, increasing the service life of the transformer. Moreover, a protective frame 25 is provided on the ventilation holes 23. Cooperating with the mounting frame body 6, it can not only protect the fan 20 and the heat conduction plates 41, but also prevent external rainwater from entering the mounting frame body 6 through the ventilation holes 23. In addition, by loosening the mounting screws 24, the fan 20 can be taken out of the mounting frame body 6, which is convenient for cleaning and replacing the fan 20.

[0028] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. Encapsulation shell of a voltage transformer, comprising a transformer encapsulation shell (1), characterized in that: An installation base (4) is installed at the lower end of the mutual inductor encapsulation shell (1). Installation plates (5) are installed at both the front end and the rear end of the installation base (4). An installation device (3) is fixedly installed jointly on the left part of the outer surface and the right part of the outer surface of the mutual inductor encapsulation shell (1). Installation frames (6) are fixedly installed at both the left end and the right end of the installation device (3). A heat dissipation device (2) is jointly installed between the front inner wall and the rear inner wall of the two installation frames (6).

2. The encapsulation shell of the voltage transformer according to claim 1, characterized in that: The heat dissipation device (2) includes a fan (20). Installation blocks (21) are fixedly installed at both the front end and the rear end of the fan (20). Screw holes (22) are opened at the opposite ends of the two installation blocks (21). Installation screws (24) are installed at both the left part of the front end and the left part of the rear end of the installation frame (6). A group of ventilation holes (23) are opened at both the right part of the front end and the right part of the rear end of the installation frame (6). Protective frames (25) are installed at both the right part of the front end and the right part of the rear end of the installation frame (6). The fan (20) is fixedly installed in the installation frame (6) through the installation screws (24).

3. The encapsulation shell of the voltage transformer according to claim 1, characterized in that: The installation device (3) includes a first fixed frame (30) and a second fixed frame (31). Two protective plates (32) are fixedly installed at the corresponding ends of the first fixed frame (30) and the second fixed frame (31). The first fixed frame (30) and the second fixed frame (31) are respectively fixedly installed on the left part of the outer surface and the right part of the outer surface of the mutual inductor encapsulation shell (1).

4. The encapsulation shell of the voltage transformer according to claim 1, characterized in that: A group of fixing grooves (40) are opened at both the left end and the right end of the mutual inductor encapsulation shell (1). Heat conduction plates (41) are installed in the two groups of fixing grooves (40).

5. The encapsulation shell of the voltage transformer according to claim 2, characterized in that: The two groups of ventilation holes (23) are respectively located in the two protective frames (25).

6. The encapsulation shell of the voltage transformer according to claim 4, characterized in that: The heat conduction plate (41) is in an I shape.

Images