Safe and explosion-proof transformer shell

Abstract

The invention relates to a safe and explosion-proof transformer shell, and relates to the technical field of electrical equipment safety protection, the safe and explosion-proof transformer shell comprises a bottom plate, a plurality of side plates and a top plate, the side plates are symmetrically arranged on the bottom plate, the top plate is arranged at the top ends of the side plates, and the bottom ends of the side plates and the end wall of the bottom plate are rotatably connected and attached to each other; a plurality of positioning rods are symmetrically and fixedly arranged on the bottom plate, the top plate is arranged on the positioning rods in a sliding mode, and positioning blocks abutting against the lower surface of the top plate are fixedly arranged on the positioning rods; limiting blocks are arranged at the top ends of the positioning rods, the positioning rods are sleeved with buffer springs, and the two ends of the buffer springs abut against the limiting blocks and the top plate. A plurality of limiting strips are integrally arranged on the end wall of the top plate and attached to the side walls of the side plates. The explosion-proof transformer shell has the advantages that when the interior of the transformer shell explodes, the shell panel is not prone to being damaged and splashing, the situation that surrounding equipment or personnel are damaged is reduced, and the safety of the transformer shell is improved.

Description

Technical Field

[0001] This invention relates to the technical field of safety protection for power equipment, and in particular to a safe and explosion-proof transformer housing. Background Technology

[0002] Currently, transformers are core equipment in power systems, and their safety is of paramount importance. A transformer is a device that uses the principle of electromagnetic induction to change alternating current voltage. Its main components are the primary coil, secondary coil, and iron core. In related technologies, transformer casings are designed with several interconnected panels that are relatively fixed to each other. The gas pressure generated during an explosion can easily damage and rupture these panels, which can cause injury to surrounding equipment or personnel. Therefore, the explosion-proof performance of transformer casings is poor, resulting in low safety, and thus requires improvement. Summary of the Invention

[0003] In order to prevent damage and debris from flying off the transformer housing panels in the event of an internal explosion, thereby reducing the risk of damage to surrounding equipment or personnel and improving the safety of the transformer housing, this application provides a safe and explosion-proof transformer housing.

[0004] The present application provides a safe and explosion-proof transformer housing using the following technical solution: A safe and explosion-proof transformer housing includes a base plate, side plates, and a top plate. Several side plates are symmetrically arranged on the base plate to surround electrical equipment on the base plate. The top plate is located at the top of the side plates. The bottom of the side plates is rotatably connected to and fits against the end wall of the base plate. Several positioning rods are symmetrically fixed on the base plate. The top plate is slidably mounted on the positioning rods. Positioning blocks that abut against the lower surface of the top plate are fixed on the positioning rods. A limit block is provided at the top of each positioning rod. A buffer spring is sleeved on each positioning rod, with one end abutting against the lower surface of the limit block and the other end abutting against the upper surface of the top plate. Several limit strips are integrally formed on the end wall of the top plate, and these limit strips fit against the side walls of the side plates.

[0005] By adopting the above technical solution, the bottom plate, side plate, and top plate surround the electronic equipment during use. If the electronic equipment explodes, high pressure will be generated instantly inside the casing. At this time, the bottom of the top plate will slide and rise on the positioning rod due to air pressure. The top plate will instantly rise away from the side plate, and some of the high-pressure airflow can flow out between the top plate and the side plate. At the same time, the buffer spring will be compressed, which can buffer the force on the top plate. Meanwhile, the limiting block effectively prevents the top plate from separating from the positioning rod, protecting and limiting the top plate and reducing the phenomenon of instantaneous separation of the top plate due to air pressure. When the top plate rises and the limiting bar moves away from the side plate, the side plate will rotate with the bottom plate due to force. The side plate will rotate away from the bottom plate, making it less likely for the side plate to break and separate from the bottom plate. Therefore, when the transformer casing explodes inside, the casing panel is less likely to be damaged and splashed, reducing the possibility of damage to surrounding equipment or personnel.

[0006] Preferably, a plurality of auxiliary breakage grooves are provided through the limiting strip and the top plate.

[0007] Preferably, a connecting rope is provided between the side wall of the limiting strip and the end wall of the top plate.

[0008] By adopting the above technical solution, the auxiliary break groove reduces the connection strength between the limit strip and the top plate. When air pressure is generated instantaneously inside the shell, the side plate will exert high pressure on the limit strip, causing the limit strip to break with the top plate, thereby allowing the side plate to make way and ensuring that the side plate can rotate away from the bottom plate. If the limit strip breaks, the connecting rope can prevent the limit strip from separating and flying away, further improving the safety of the shell during use.

[0009] Preferably, the limiting block is sleeved on the positioning rod, and the limiting block and the positioning rod are threaded together.

[0010] By adopting the above technical solution, the rotating limit block can separate the limit block from the positioning rod, which facilitates the disassembly and maintenance of the top plate and improves the ease of shell assembly.

[0011] Preferably, the base plate is provided with a plurality of angle irons, which are connected to the base plate by bolts, and the angle irons are fitted together with the side of the side plate facing the base plate.

[0012] By adopting the above technical solution, the angle iron supports one side of the side plate on the base plate, which improves the stability and strength of the side plate around the base plate.

[0013] Preferably, an elastic rope is fixedly provided between adjacent side plates.

[0014] By adopting the above technical solution, when an explosion occurs inside the shell, the side plates rotate away from the bottom plate. At this time, the elastic rope connects the adjacent side plates. The elastic rope is stretched and deformed, and a certain amount of tension is applied to the side plates as they rotate, so as to slow down the rotation speed of the side plates and further protect the side plates, thereby extending the service life of the shell.

[0015] Preferably, the end wall of the base plate is integrally provided with a mounting block, and the bottom end of the side plate is symmetrically fixed with a plurality of connecting blocks. The mounting block is symmetrically provided with a set of connecting slots for the connecting blocks to be inserted, and the end wall of the connecting block and the inner side wall of the connecting slot are in contact with each other. A set of connecting shafts is slidably provided on the mounting block, and the connecting block is provided with connecting holes for the connecting shafts to be inserted, and the connecting holes and the connecting shafts are mutually adapted. The mounting block is provided with a sliding component, which is used to drive two connecting shafts to slide simultaneously.

[0016] Preferably, the sliding assembly includes an abutment block, a drive rod, and an abutment spring. The mounting block has a drive cavity, and the abutment block is slidably disposed within the drive cavity. The surface of the abutment block is in contact with the inner wall of the drive cavity. One end of the drive rod is rotatably connected to the inner wall of the drive cavity, and the other end of the drive rod passes through the drive cavity. The drive rod and the abutment block are threadedly connected. A set of abutment surfaces are symmetrically and obliquely disposed on the abutment block. The abutment spring is disposed within the mounting block and abuts against the connecting shaft. The abutment spring drives the end wall of the connecting shaft to abut against the abutment surfaces.

[0017] By adopting the above technical solution, when installing between the side plate and the bottom plate, the connecting block at the bottom of the side plate is inserted into the connecting groove, so that the connecting hole and the connecting shaft are aligned with each other. Then, the drive rod is rotated to drive the abutment block to slide in the drive cavity. When the abutment block slides, the abutment surface abuts against the end wall of the connecting shaft. Due to the inclined setting of the abutment surface, when the abutment block slides, it simultaneously drives the two connecting shafts to slide along the length direction of the mounting block. The connecting shaft slides into the connecting hole, and the side plate is rotatably connected to the end wall of the bottom plate through the connecting shaft. This improves the convenience of disassembly and assembly between the side plate and the bottom plate, and facilitates the maintenance of the transformer. At the same time, by using the connecting shaft to connect with several connecting blocks, the connection strength between the side plate and the bottom plate is effectively enhanced, and the side plate is not easily separated and damaged when the shell explodes.

[0018] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up a base plate, side plate, top plate, positioning rod, positioning block, limit block, buffer spring, and limit strip, if an electronic device on the base plate explodes, high pressure will be generated instantly inside the casing. At this time, the bottom of the top plate will be subjected to air pressure and slide up on the positioning rod. The top plate will be raised instantly away from the side plate, and some of the high-pressure airflow can flow out between the top plate and the side plate. At the same time, the buffer spring will be compressed, which can buffer the force on the top plate. When the top plate is raised and the limit strip is moved away from the side plate, the side plate will be rotated with the base plate. The side plate will rotate away from the base plate, making it less likely for the side plate to break and separate from the base plate. This makes it less likely for the casing panel to be damaged and splashed when an explosion occurs inside the transformer casing, reducing the possibility of damage to surrounding equipment or personnel. 2. By setting up elastic ropes, when an explosion occurs inside the shell, the side plates rotate away from the bottom plate. At this time, the elastic ropes connect the adjacent side plates. The elastic ropes are stretched and deformed, and a certain amount of tension is applied to the side plates as they rotate, so as to slow down the rotation speed of the side plates and further protect the side plates, thereby extending the service life of the shell. 3. By setting up mounting blocks, connecting blocks, connecting grooves, connecting shafts, connecting holes, abutment blocks, drive rods, and abutment springs, when installing between the side plate and the bottom plate, the connecting block at the bottom of the side plate is inserted into the connecting groove. Rotating the drive rod causes the abutment block to slide within the drive cavity. When the abutment block slides, the abutment surface abuts against the end wall of the connecting shaft, thereby causing the connecting shaft to slide and insert into the connecting hole. The side plate is rotatably connected to the end wall of the bottom plate through the connecting shaft, which improves the ease of disassembly and assembly between the side plate and the bottom plate, facilitating transformer maintenance. At the same time, the connection between the connecting shaft and several connecting blocks effectively enhances the connection strength between the side plate and the bottom plate, making it less likely for the side plate to separate and be damaged in the event of an internal explosion. Attached Figure Description

[0019] Figure 1 This is a vertical sectional view of a safe and explosion-proof transformer housing provided in an embodiment of this application.

[0020] Figure 2 This is a cross-sectional view of a safe and explosion-proof transformer housing provided in an embodiment of this application.

[0021] Figure 3 This is a cross-sectional view used to illustrate the connection relationship between the side plate and the bottom plate in the embodiments of this application.

[0022] Explanation of reference numerals in the attached drawings: 11. Base plate; 12. Side plate; 122. Connecting block; 123. Connecting hole; 13. Top plate; 2. Positioning rod; 21. Positioning block; 22. Limiting block; 23. Buffer spring; 3. Limiting strip; 31. Auxiliary break groove; 32. Connecting rope; 4. Angle iron; 5. Elastic rope; 6. Mounting block; 61. Connecting groove; 62. Connecting shaft; 63. Drive cavity; 71. Abutting block; 72. Drive rod; 73. Abutting spring; 8. Abutting surface. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0024] This application discloses a safe and explosion-proof transformer housing. (Refer to...) Figure 1 and Figure 2 It includes a base plate 11, side plates 12 and a top plate 13. Several side plates 12 are provided. In this embodiment, the base plate 11 is rectangular and four side plates 12 are symmetrically arranged. The side plates 12 are symmetrically arranged on the base plate 11 to surround the electrical equipment on the base plate 11. The bottom end of the side plate 12 is rotatably connected to the end wall of the base plate 11 and fits against each other. The top plate 13 is provided on the top of the side plates 12. When the housing is in use, the base plate 11, side plates 12 and top plate 13 surround the electronic equipment.

[0025] Reference Figure 1 and Figure 2 A plurality of positioning rods 2 are symmetrically fixed on the base plate 11. In this embodiment, four positioning rods 2 are symmetrically arranged at the top corners of the base plate 11. The top plate 13 is slidably mounted on the positioning rods 2. A positioning block 21 is integrally provided on the positioning rod 2, abutting against the lower surface of the top plate 13. A limit block 22 is provided at the top of the positioning rod 2, and the limit block 22 is sleeved on the positioning rod 2. The limit block 22 and the positioning rod 2 are threadedly connected. A buffer spring 23 is sleeved on the positioning rod 2. One end of the buffer spring 23 abuts against the lower surface of the limit block 22, and the other end of the buffer spring 23 abuts against the upper surface of the top plate 13. A limit strip 3 is integrally provided on the end wall of the top plate 13. Four limit strips 3 are provided. The limit strips 3 fit against the side wall of the side plate 12. A plurality of auxiliary break grooves 31 are provided through the limit strips 3 and the top plate 13.

[0026] Reference Figure 1 and Figure 2When assembling the housing, the side plate 12 is rotated and attached to the end wall of the bottom plate 11, and then the top plate 13 is placed on top. Several positioning rods 2 are simultaneously inserted through the top plate 13 until the top plate 13 abuts against the positioning block 21. The limiting strip 3 on the end wall of the top plate 13 is attached to the side plate 12, and the limiting strip 3 is used to limit the side plate 12, so that the side plate 12 is perpendicular to the end wall of the bottom plate 11. Then, the buffer spring 23 is sleeved on the positioning rod 2, and the limiting block 22 is threaded to the top of the positioning rod 2, so that the buffer spring 23 abuts against the top plate 13. If an electronic device inside the casing explodes, high pressure will be instantly generated inside the casing. At this time, the bottom of the top plate 13 will be subjected to air pressure and slide upward on the positioning rod 2. The top plate 13 will instantly rise away from the side plate 12, and some of the high-pressure airflow can flow out between the top plate 13 and the side plate 12. At the same time, the buffer spring 23 will be compressed, which can buffer the force on the top plate 13. Meanwhile, the limiting block 22 effectively prevents the top plate 13 from separating from the positioning rod 2, protecting and limiting the top plate 13, and reducing the possibility of the top plate 13 separating due to instantaneous air pressure. The auxiliary breakage groove 31 reduces the connection strength between the limiting strip 3 and the top plate 13. When the internal pressure of the shell is generated instantaneously, the side plate 12 will exert high pressure on the limiting strip 3, causing the limiting strip 3 to break between the top plate 13, so that the side plate 12 can make way. At this time, the side plate 12 will rotate with the bottom plate 11 under the force. The side plate 12 will rotate away from the bottom plate 11, and the side plate 12 is not easy to break and separate from the bottom plate 11. Thus, when the transformer shell explodes inside, the shell panel is not easily damaged and splashed, reducing the possibility of damage to surrounding equipment or personnel.

[0027] Reference Figure 1 and Figure 2 A connecting rope 32 is fixedly installed between the side wall of the limiting strip 3 and the end wall of the top plate 13. If the limiting strip 3 breaks, the connecting rope 32 can prevent the limiting strip 3 from separating and flying away, further improving the safety of the shell during use. Several angle irons 4 are provided on the bottom plate 11. The angle irons 4 are connected to the bottom plate 11 by bolts. The angle irons 4 are attached to the side of the side plate 12 facing the bottom plate 11. The angle irons 4 support one side of the side plate 12 on the bottom plate 11, improving the stability and strength of the side plate 12 around the bottom plate 11.

[0028] Reference Figure 2 An elastic rope 5 is fixedly installed between adjacent side plates 12. When an explosion occurs inside the shell, the side plates 12 rotate away from the bottom plate 11. At this time, the elastic rope 5 connects the adjacent side plates 12. The elastic rope 5 is stretched and deformed. The elastic rope 5 applies a certain amount of tension when the side plates 12 rotate, so as to slow down the rotation speed of the side plates 12 and further protect the side plates 12 to extend the service life of the shell.

[0029] Reference Figure 1 and Figure 3The bottom plate 11 has an integrally formed mounting block 6 on its end wall. The number of mounting blocks 6 corresponds to the number of side plates 12, which is four. Several connecting blocks 122 are symmetrically fixed at the bottom end of the side plates 12. In this embodiment, four connecting blocks 122 are symmetrically arranged. A set of connecting grooves 61 for inserting the connecting blocks 122 are symmetrically opened on the mounting blocks 6. The end wall of the connecting blocks 122 is in contact with the inner side wall of the connecting grooves 61. A set of connecting shafts 62 are slidably arranged on the mounting blocks 6. The length direction of the connecting shafts 62 is along the length direction of the mounting blocks 6. Connecting holes 123 for inserting the connecting shafts 62 are opened on the connecting blocks 122. The connecting holes 123 are mutually adapted to the connecting shafts 62. The side plates 12 are rotatably connected to the end wall of the bottom plate 11 through the connecting blocks 122 and the connecting shafts 62. The several connecting blocks 122 effectively enhance the connection strength between the side plates 12 and the bottom plate 11, making it less likely for the side plates 12 to separate and be damaged when the shell explodes.

[0030] Reference Figure 1 and Figure 3 The mounting block 6 is equipped with a sliding assembly, which includes an abutment block 71, a drive rod 72, and an abutment spring 73. A drive cavity 63 is provided within the mounting block 6. The abutment block 71 is slidably disposed within the drive cavity 63 and can slide along the width direction of the mounting block 6. The surface of the abutment block 71 is in contact with the inner wall of the drive cavity 63. One end of the drive rod 72 is rotatably connected to the inner wall of the drive cavity 63, and the other end of the drive rod 72 passes through the drive cavity 63. The drive rod 72 and the abutment block 71 are threadedly connected. A set of abutment surfaces 8 are symmetrically and obliquely arranged on the abutment block 71. The abutment spring 73 is disposed within the mounting block 6 and abuts against the connecting shaft 62. The abutment spring 73 drives the end wall of the connecting shaft 62 to abut against and fit against the abutment surfaces 8. When installing the side plate 12 and the base plate 11, insert the connecting block 122 at the bottom of the side plate 12 into the connecting groove 61, aligning the connecting hole 123 with the connecting shaft 62. Then, rotate the drive rod 72 to drive the abutment block 71 to slide in the drive cavity 63. When the abutment block 71 slides, the abutment surface 8 abuts against the end wall of the connecting shaft 62. Since the abutment surface 8 is inclined, when the abutment block 71 slides, it simultaneously drives the two connecting shafts 62 to slide along the length of the mounting block 6. The connecting shaft 62 slides into the connecting hole 123, and the side plate 12 is rotatably connected to the end wall of the base plate 11 through the connecting shaft 62. This improves the ease of disassembly and assembly between the side plate 12 and the base plate 11, making it convenient for transformer maintenance.

[0031] The implementation principle of the explosion-proof transformer housing in this application embodiment is as follows: If an electronic device inside the housing explodes, high pressure will be generated instantly inside the housing. At this time, the bottom of the top plate 13 will be subjected to air pressure and can slide and rise on the positioning rod 2. The top plate 13 will instantly rise away from the side plate 12, and some of the high-pressure airflow can flow out between the top plate 13 and the side plate 12. At the same time, the buffer spring 23 will be compressed, which can buffer the force on the top plate 13. Meanwhile, the limiting block 22 effectively prevents the top plate 13 from separating from the positioning rod 2, thus protecting and limiting the top plate 13 and reducing the instantaneous pressure on the top plate 13. The phenomenon of air pressure separation occurs; at the same time, the side plate 12 will instantly exert high pressure on the limiting strip 3. The auxiliary break groove 31 ensures that the limiting strip 3 and the top plate 13 can break, so that the side plate 12 can make way. At this time, the side plate 12 will rotate with the bottom plate 11 under force. The side plate 12 rotates away from the bottom plate 11, and the side plate 12 is not easy to break and separate from the bottom plate 11. This achieves the effect of making the shell panel less likely to be damaged and splashed when the transformer shell explodes inside, reducing the possibility of damage to surrounding equipment or personnel, and improving the safety of the transformer shell. At the same time, the structure is simple, the assembly is convenient and quick, and the transformer is easy to maintain.

[0032] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A safe and explosion-proof transformer housing, comprising a base plate (11), side plates (12), and a top plate (13), wherein a plurality of side plates (12) are provided, the side plates (12) are symmetrically arranged on the base plate (11) to surround the electrical equipment on the base plate (11), and the top plate (13) is provided at the top of the side plates (12), characterized in that: The bottom end of the side plate (12) is rotatably connected to the end wall of the bottom plate (11) and fits against each other. Several positioning rods (2) are symmetrically fixed on the bottom plate (11). The top plate (13) is slidably mounted on the positioning rods (2). A positioning block (21) is fixedly mounted on the positioning rods (2) and abuts against the lower surface of the top plate (13). A limit block (22) is provided at the top of the positioning rods (2). A buffer spring (23) is sleeved on the positioning rods (2). One end of the buffer spring (23) abuts against the lower surface of the limit block (22), and the other end of the buffer spring (23) abuts against the upper surface of the top plate (13). Several limit strips (3) are integrally provided on the end wall of the top plate (13). The limit strips (3) fit against the side wall of the side plate (12).

2. The explosion-proof transformer housing according to claim 1, characterized in that: A plurality of auxiliary break grooves (31) are provided through the limiting strip (3) and the top plate (13).

3. The explosion-proof transformer housing according to claim 2, characterized in that: A connecting rope (32) is provided between the side wall of the limiting strip (3) and the end wall of the top plate (13).

4. The explosion-proof transformer housing according to claim 1, characterized in that: The limiting block (22) is sleeved on the positioning rod (2), and the limiting block (22) and the positioning rod (2) are threaded together.

5. The explosion-proof transformer housing according to claim 1, characterized in that: The base plate (11) is provided with a plurality of angle irons (4), which are connected to the base plate (11) by bolts. The angle irons (4) and the side plate (12) are attached to each other on the side facing the base plate (11).

6. The explosion-proof transformer housing according to claim 1, characterized in that: An elastic rope (5) is fixedly installed between adjacent side plates (12).

7. The explosion-proof transformer housing according to claim 1, characterized in that: The bottom plate (11) has an integrally formed mounting block (6) on its end wall. The bottom of the side plate (12) has a number of connecting blocks (122) symmetrically fixed. The mounting block (6) has a set of connecting grooves (61) symmetrically formed for the connecting blocks (122) to be inserted. The end wall of the connecting block (122) is in contact with the inner side wall of the connecting groove (61). A set of connecting shafts (62) is slidably formed on the mounting block (6). The connecting block (122) has connecting holes (123) for the connecting shafts (62) to be inserted. The connecting holes (123) and the connecting shafts (62) are mutually adapted. The mounting block (6) has a sliding component for driving the two connecting shafts (62) to slide simultaneously.

8. The explosion-proof transformer housing according to claim 7, characterized in that: The sliding assembly includes an abutment block (71), a drive rod (72), and an abutment spring (73). The mounting block (6) is provided with a drive cavity (63). The abutment block (71) is slidably disposed in the drive cavity (63). The surface of the abutment block (71) is in contact with the inner wall of the drive cavity (63). One end of the drive rod (72) is rotatably connected to the inner wall of the drive cavity (63). The other end of the drive rod (72) passes through the drive cavity (63). The drive rod (72) and the abutment block (71) are threadedly connected. A set of abutment surfaces (8) are symmetrically and obliquely disposed on the abutment block (71). The abutment spring (73) is disposed in the mounting block (6) and abuts against the connecting shaft (62). The abutment spring (73) drives the end wall of the connecting shaft (62) to abut against the abutment surface (8).

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