Converter high-voltage protection structure

Abstract

The utility model discloses a converter high-voltage protection structure, which belongs to the technical field of converter protection devices and comprises a base, a protection shell, a high-voltage protection plate, a fixing column, a fixing rod and an insulation protection assembly. The insulation protection assembly comprises a fixing plate, an insulation rubber cushion is arranged at the top of the fixing plate and located below the high-voltage protection plate, and four first telescopic springs are arranged at the four corners of the bottom of the fixing plate and located on the surfaces of the four fixing columns. According to the utility model, the fixed plate, the insulating rubber soft cushion and the first telescopic spring are used in cooperation, and the insulating rubber soft cushion is used for insulating protection of the bottom of the high-voltage protection plate, so that short circuit damage caused by arc discharge between the high-voltage protection plate and other electronic elements is avoided; the insulating rubber cushion damaged after being heated can be replaced conveniently, operation is easy, convenient and rapid, and the safety of the high-voltage protection plate is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of converter protection devices, in particular to a converter high-voltage protection structure. Background Art

[0002] A converter is an electrical device that changes the voltage, frequency, number of phases, and other electrical quantities or characteristics of a power system. In practical applications, some require converting AC power to DC power, a process known as a rectifier circuit. Other applications require converting DC power to AC power, a reverse process of rectification known as an inverter circuit.

[0003] The high-voltage protection plates of most existing converters generate enormous heat under high voltage conditions, causing the insulating rubber pads at the bottom to curl and deform. However, the existing converter high-voltage protection devices have the problem of being inconvenient to replace the insulating rubber pads, which leads to arc discharge between the high-voltage protection plate and other electronic components, making it easy for the converter high-voltage protection plate to be short-circuited and overheated and damaged. Therefore, we need to propose a converter high-voltage protection structure. Utility Model Content

[0004] The purpose of the present invention is to provide a high-voltage protection structure for a converter, which has a structure capable of replacing the insulating rubber pad at the bottom of the high-voltage protection plate, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a converter high-voltage protection structure, comprising a base, a protective shell provided on the top of the base, a high-voltage protection plate provided above the base at a position corresponding to and located inside the protective shell, four groups of fixing columns provided between the four corners of the bottom of the high-voltage protection plate and the top of the base, four groups of fixing rods provided above the four groups of fixing columns, the high-voltage protection plate being fixed to the tops of the four groups of fixing rods via the four groups of fixing rods, and an insulating protection assembly provided at the bottom of the high-voltage protection plate for insulating the high-voltage protection plate;

[0006] The insulating protection assembly includes a fixing plate adapted to be slidably connected to the surfaces of the four groups of fixing columns, an insulating rubber pad is provided at the top of the fixing plate and below the high-voltage protection plate, and four groups of first telescopic springs are provided at the four corners of the bottom of the fixing plate and on the surfaces of the four groups of fixing columns.

[0007] Preferably, a mounting assembly for mounting the protective shell is provided between the top of the base and the protective shell;

[0008] The mounting assembly includes four groups of mounting plates fixedly mounted on both ends of the protective shell, a through hole being opened through the top of the mounting plate, four groups of mounting rods being arranged at corresponding positions above the four groups of mounting plates, and the bottom ends of the mounting rods being inserted into the inner cavity of the through hole at the top of the mounting plate.

[0009] Preferably, the mounting assembly further includes four groups of mounting holes opened in two groups on the top of the base, the interior of the mounting holes is adapted to the bottom end of the mounting rod, and the bottom end of the mounting rod is threadedly connected to the inner cavity of the mounting holes.

[0010] Preferably, a cooling component for cooling the high-voltage protection plate is provided on the surface of the protective shell;

[0011] The cooling component includes a ventilation pipe fixed to one end of the protective shell, an intake fan is fixedly installed inside the one end of the ventilation pipe and located inside the protective shell, a dustproof plate is provided inside the other end of the ventilation pipe and located on one side of the protective shell, a disassembly and assembly mechanism is provided between the dustproof plate and one end of the ventilation pipe, and the dustproof plate is installed at one end inside the ventilation pipe through the disassembly and assembly mechanism.

[0012] Preferably, the cooling component further comprises a plurality of groups of air outlets evenly arranged on both sides of one end of the protective shell, and a shutter is provided on one side of the air outlet and on the surface of the protective shell.

[0013] Preferably, the disassembly and assembly mechanism includes two groups of connecting blocks fixedly installed on both sides of the surface of the ventilation pipe, one end of the connecting block is slidably connected to a connecting rod, one end of the connecting rod is fixedly connected to a limiting plate located inside the connecting block, and a second telescopic spring is provided on one side of the limiting plate and located on the surface of the connecting rod.

[0014] Preferably, a connecting plate is fixedly installed on the other end of the two groups of connecting rods, and a fixing ring is fixedly connected to one end of the two groups of connecting plates, and the surface of the fixing ring is slidably connected to the inside of one end of the ventilation pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model uses a fixed plate, an insulating rubber pad and a first telescopic spring in coordination, utilizes the insulating rubber pad to insulate and protect the bottom of the high-voltage protection plate, and avoids short-circuit damage caused by arc discharge between the high-voltage protection plate and other electronic components. Then, the fixed plate is pressed to allow the four corners of the fixed plate to over-extend the four groups of first telescopic springs, so that the surfaces of the fixing columns of the four groups of first telescopic springs are compressed. Then, the insulating rubber pad is placed on the top of the fixed plate and the fixed plate is released. The reaction force of the four groups of first telescopic springs is utilized to fix the insulating rubber pad on the top of the fixed plate to the bottom of the high-voltage protection plate, so that the insulating rubber pad damaged by heat can be easily replaced. The operation is simple, convenient and quick, and the safety of the high-voltage protection plate is guaranteed.

[0017] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures indicated in the description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a structural diagram of the utility model from another perspective;

[0020] Figure 3 This is a schematic diagram of the structure of the air outlet of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the insulating rubber pad of the utility model;

[0022] Figure 5 It is a structural diagram of the disassembly and assembly mechanism of the utility model.

[0023] In the figure: 1. Base; 2. Protective shell; 3. High-voltage protection plate; 4. Fixing column; 5. Fixing rod; 6. Fixing plate; 7. Insulating rubber pad; 8. First telescopic spring; 9. Mounting plate; 10. Mounting rod; 11. Mounting hole; 12. Ventilation duct; 13. Suction fan; 14. Dustproof plate; 15. Disassembly and assembly mechanism; 151. Connecting block; 152. Connecting rod; 153. Limiting plate; 154. Second telescopic spring; 155. Connecting plate; 156. Fixing ring; 16. Exhaust vent; 17. Ventilation shutter. DETAILED DESCRIPTION

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

[0025] See also Figure 1-5 The utility model provides a high-voltage protection structure for a converter, including a base 1, a protective shell 2, a high-voltage protection plate 3, a fixing column 4, a fixing rod 5, an insulating protection component, a mounting component and a cooling component.

[0026] A protective shell 2 is provided on the top of the base 1, and a high-voltage protection plate 3 is provided at the corresponding position above the base 1 and inside the protective shell 2. Four groups of fixing columns 4 are provided between the four corners of the bottom of the high-voltage protection plate 3 and the top of the base 1, and four groups of fixing rods 5 are provided above the four groups of fixing columns 4. The high-voltage protection plate 3 is fixed to the top of the four groups of fixing rods 5 through the four groups of fixing rods 5. An insulating protection component for insulating the high-voltage protection plate 3 is provided at the bottom of the high-voltage protection plate 3, and an installation component for installing the protective shell 2 is provided between the top of the base 1 and the protective shell 2. A cooling component for cooling the high-voltage protection plate 3 is provided on the surface of the protective shell 2.

[0027] The insulation protection assembly includes: a fixed plate 6, an insulating rubber pad 7 and a first telescopic spring 8. The fixed plate 6 is adapted to be slidably connected to the surface of the four groups of fixed columns 4. An insulating rubber pad 7 is provided on the top of the fixed plate 6 and below the high-voltage protection plate 3. Four groups of first telescopic springs 8 are provided at the four corners of the bottom of the fixed plate 6 and on the surface of the four groups of fixed columns 4.

[0028] Specifically, by using the fixed plate 6, the insulating rubber pad 7 and the first telescopic spring 8 in conjunction with each other, the insulating rubber pad 7 is used to insulate and protect the bottom of the high-voltage protection plate 3 to avoid short-circuit damage caused by arc discharge between the high-voltage protection plate 3 and other electronic components. Then, the fixed plate 6 is pressed to allow the four corners of the fixed plate 6 to over-squeeze the four groups of first telescopic springs 8, so that the surfaces of the fixing columns 4 of the four groups of first telescopic springs 8 are compressed. Then, the insulating rubber pad 7 is placed on the top of the fixed plate 6 and the fixed plate 6 is released. The reaction force of the four groups of first telescopic springs 8 is used to fix the insulating rubber pad 7 on the top of the fixed plate 6 to the bottom of the high-voltage protection plate 3, so that the insulating rubber pad 7 damaged by heat can be easily replaced. The operation is simple, convenient and fast, ensuring the safety of the high-voltage protection plate 3.

[0029] The mounting assembly includes: a mounting plate 9, a mounting rod 10 and a mounting hole 11. Four groups of mounting plates 9 are fixedly mounted on both ends of the protective shell 2. A through hole is opened through the top of the mounting plate 9. Four groups of mounting rods 10 are arranged at corresponding positions above the four groups of mounting plates 9, and the bottom ends of the mounting rods 10 are inserted into the inner cavity of the through hole at the top of the mounting plate 9. Two groups of four mounting holes 11 are opened at the top of the base 1. The interior of the mounting hole 11 is adapted to the bottom end of the mounting rod 10, and the bottom end of the mounting rod 10 is threadedly connected to the inner cavity of the mounting hole 11, which can facilitate the installation or disassembly between the protective shell 2 and the base 1.

[0030] The cooling component includes: a ventilation pipe 12, a suction fan 13, a dustproof plate 14, a disassembly and assembly mechanism 15, an exhaust port 16 and a shutter 17. The ventilation pipe 12 is fixed to one end of the protective shell 2. The suction fan 13 is fixedly installed inside one end of the ventilation pipe 12 and located inside the protective shell 2. A dustproof plate 14 is provided inside the other end of the ventilation pipe 12 and located on one side of the protective shell 2. A disassembly and assembly mechanism 15 is provided between the dustproof plate 14 and one end of the ventilation pipe 12. The dustproof plate 14 is installed at one end of the interior of the ventilation pipe 12 through the disassembly and assembly mechanism 15. Several groups of exhaust ports 16 are evenly opened on both sides of one end of the protective shell 2. A shutter 17 is provided on one side of the exhaust port 16 and located on the surface of the protective shell 2.

[0031] Specifically, by using the ventilation pipe 12, the suction fan 13, the dustproof plate 14, the disassembly and assembly mechanism 15, the exhaust port 16 and the shutter 17 in coordination, the high-voltage protection plate 3 can be ventilated and cooled, thereby preventing it from being damaged due to excessive temperature during operation, and ensuring the safe use of the high-voltage protection plate 3.

[0032] The disassembly and assembly mechanism 15 includes: a connecting block 151, a connecting rod 152, a limiting plate 153, a second telescopic spring 154, a connecting plate 155 and a fixing ring 156. The two groups of connecting blocks 151 are fixedly installed on both sides of the surface of the ventilation pipe 12. One end of the connecting block 151 is slidably connected to the connecting rod 152. One end of the connecting rod 152 is located inside the connecting block 151 and is fixedly connected to the limiting plate 153. A second telescopic spring 154 is provided on one side of the limiting plate 153 and located on the surface of the connecting rod 152. The other ends of the two groups of connecting rods 152 are fixedly installed with a connecting plate 155. One end of the two groups of connecting plates 155 is fixedly connected to a fixing ring 156. The surface of the fixing ring 156 is slidably connected to the inside of one end of the ventilation pipe 12.

[0033] Specifically, by using the connecting block 151, the connecting rod 152, the limiting plate 153, the second telescopic spring 154, the connecting plate 155 and the fixing ring 156 in combination, the dustproof plate 14 can be easily installed or disassembled, and the dustproof plate 14 can be easily cleaned or replaced, thereby ensuring the dustproof effect of the dustproof plate 14.

[0034] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A converter high voltage protection structure, characterized by: The invention comprises a base (1), a protective shell (2) is provided on the top of the base (1), a high-voltage protection plate (3) is provided at a position corresponding to the top of the base (1) and located inside the protective shell (2), four groups of fixing columns (4) are provided between the four corners of the bottom of the high-voltage protection plate (3) and the top of the base (1), four groups of fixing rods (5) are provided above the four groups of fixing columns (4), the high-voltage protection plate (3) is fixed to the top of the four groups of fixing rods (5) through the four groups of fixing rods (5), and an insulating protection component for insulating the high-voltage protection plate (3) is provided at the bottom of the high-voltage protection plate (3); The insulating protection component comprises a fixing plate (6) adapted to be slidably connected to the surfaces of the four groups of fixing columns (4); an insulating rubber cushion (7) is provided at the top of the fixing plate (6) and located below the high-voltage protection plate (3); and four groups of first telescopic springs (8) are provided at the four corners of the bottom of the fixing plate (6) and located on the surfaces of the four groups of fixing columns (4).

2. The converter high voltage protection structure according to claim 1, characterized in that: A mounting assembly for mounting the protective shell (2) is provided between the top of the base (1) and the protective shell (2); The mounting assembly comprises four groups of mounting plates (9) fixedly mounted on both ends of the protective housing (2), the top of the mounting plates (9) being provided with through holes, four groups of mounting rods (10) being provided at corresponding positions above the four groups of mounting plates (9), and the bottom ends of the mounting rods (10) being plugged into the inner cavities of the through holes at the tops of the mounting plates (9).

3. The converter high voltage protection structure according to claim 2, characterized in that: The mounting assembly further comprises four groups of mounting holes (11) formed in two groups on the top of the base (1), the interior of the mounting holes (11) being adapted to the bottom end of the mounting rod (10), and the bottom end of the mounting rod (10) being threadedly connected to the inner cavity of the mounting holes (11).

4. The converter high voltage protection structure according to claim 1, characterized in that: A cooling component for cooling the high-voltage protection plate (3) is provided on the surface of the protective shell (2); The cooling component comprises a ventilation pipe (12) fixed to one end of the protective shell (2); a suction fan (13) is fixedly installed inside one end of the ventilation pipe (12) and located inside the protective shell (2); a dustproof plate (14) is provided inside the other end of the ventilation pipe (12) and located on one side of the protective shell (2); a disassembly mechanism (15) is provided between the dustproof plate (14) and one end of the ventilation pipe (12); and the dustproof plate (14) is installed at one end inside the ventilation pipe (12) through the disassembly mechanism (15).

5. The converter high voltage protection structure according to claim 4, characterized in that: The cooling component further comprises a plurality of groups of air outlets (16) uniformly arranged on both sides of one end of the protective shell (2); a shutter (17) is provided on one side of the air outlet (16) and on the surface of the protective shell (2).

6. The converter high voltage protection structure according to claim 4, characterized in that: The disassembly and assembly mechanism (15) comprises two groups of connection blocks (151) fixedly mounted on both sides of the surface of the ventilation pipe (12); one end of the connection block (151) is slidably connected to a connection rod (152); one end of the connection rod (152) is fixedly connected to a limiting plate (153) located inside the connection block (151); and a second telescopic spring (154) is provided on one side of the limiting plate (153) and located on the surface of the connection rod (152).

7. The converter high voltage protection structure according to claim 6, characterized in that: The other ends of the two groups of connecting rods (152) are fixedly mounted with connecting plates (155), and one ends of the two groups of connecting plates (155) are fixedly connected with fixing rings (156), and the surface of the fixing ring (156) is slidably connected to the inside of one end of the ventilation pipe (12).

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