Cooling structure for rapidly and accurately positioning silicon controlled rectifier

Abstract

The utility model discloses a cooling structure for rapidly and accurately positioning a silicon controlled rectifier, which comprises a rear baffle plate, a front baffle plate, a cushion block, a bracket, a mounting hole, a threaded column, an insulating sleeve, a spring clamping bolt, a water cooling block and a disc type silicon controlled rectifier, and is characterized in that the rear baffle plate is placed on the rear side of the front baffle plate, and the cushion block is fixed in the middle of the rear end of the front baffle plate; the upper portions of the two supports are fixed to the front end of the rear baffle and the rear end of the cushion block respectively, the installation holes are formed in the front baffle, the cushion block and the right portions of the front ends and the rear ends of the front support, the rear end of the threaded column is installed on the right portion of the front end of the rear support through the installation holes, and the insulating sleeve is installed at the side end of the threaded column through the position between the front support and the rear support. The spring clamping bolt is installed on the threaded column through the front end of the front baffle, the water cooling blocks are distributed on the threaded column through the insulating sleeve, and the disc type silicon controlled rectifier is installed between the water cooling blocks. The utility model solves the problem that the variable-frequency power supply is difficult to accurately position when the silicon controlled rectifier is replaced.

Description

Technical Field

[0001] The utility model relates to a cooling structure, in particular to a cooling structure for quickly and accurately positioning a thyristor. Background Art

[0002] Due to the advantages in technology and cost, the application of thyristor frequency conversion power supplies has developed rapidly. Disc thyristors are widely used in frequency conversion power supplies, especially high-power and extra-high-power ones, because of their mature manufacturing technology, fast heat dissipation, and large single-body current. However, when assembling with a water-cooling block, especially on-site, it is difficult to accurately position the thyristor when replacing the thyristor in the frequency conversion power supply, resulting in incomplete contact between the contact surface of the thyristor and the water-cooling block, which causes the thyristor to overheat and be broken down. Therefore, it is necessary to find a simple and fast positioning method for the thyristor. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a cooling structure for quickly and accurately positioning a thyristor to solve the above technical problems.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions: A cooling structure for quickly and accurately positioning a thyristor, including a rear baffle, a front baffle, a cushion block, a bracket, a mounting hole, a threaded column, an insulating sleeve, a spring clamping bolt, a water-cooling block, and a disc thyristor. The rear baffle is placed at the rear side of the front baffle. The cushion block is fixed to the middle of the rear end of the front baffle. The upper parts of the two brackets are respectively fixed to the front end of the rear baffle and the rear end of the cushion block. The mounting hole is opened at the front and rear ends of the right part of the front baffle, the cushion block, and the front bracket. The rear end of the threaded column is installed at the right front end of the rear bracket through the mounting hole. The insulating sleeve is installed on the side of the threaded column between the front and rear brackets. The spring clamping bolt is installed on the threaded column through the front end of the front baffle. The water-cooling block is distributed on the threaded column through the insulating sleeve. The disc thyristor is installed between the water-cooling blocks.

[0005] On the basis of the above technical solution, the water-cooling block includes a heat exchange block, a water-cooled heat exchange tube, a sliding hole, and a positioning pin. The water-cooled heat exchange tube is installed inside the heat exchange block. The sliding hole is opened at the right part of the heat exchange block, and the heat exchange block is slidably connected to the insulating sleeve through the sliding hole. The positioning pins are distributed at the left bottom of the front end of the water-cooling block according to the lower contour of the disc thyristor.

[0006] On the basis of the above technical solution, the disc thyristor is positioned on the positioning pins by sliding up and down along the front end of the heat exchange block.

[0007] Compared with the prior art, the utility model has the following advantages: When installing the disc thyristor through the assembly component of the thyristor and cooperating with the water-cooling block, the utility model realizes the quick and accurate positioning of the disc thyristor through the positioning pins distributed on the water-cooling block according to the bottom contour of the disc thyristor, improving the replacement efficiency. Brief Description of the Drawings

[0008] Figure 1 This is a schematic diagram of the external structure of the present utility model.

[0009] Figure 2 This is a schematic diagram of the bracket structure of the present utility model.

[0010] Figure 3 This is a schematic diagram of the water-cooling block structure of the present utility model.

[0011] In the figure: 1. Rear baffle, 2. Front baffle, 3. Spacer block, 4. Bracket, 5. Mounting hole, 6. Threaded post, 7. Insulating sleeve, 8. Spring clamping bolt, 9. Water-cooling block, 10. Disk-type thyristor, 11. Heat exchange block, 12. Water-cooling heat exchange tube, 13. Slide hole, 14. Positioning pin. Detailed Description of the Preferred Embodiment

[0012] The present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0013] As Figures 1 to 3 shown, a cooling structure for quickly and accurately positioning a thyristor includes a rear baffle 1, a front baffle 2, a spacer block 3, a bracket 4, a mounting hole 5, a threaded post 6, an insulating sleeve 7, a spring clamping bolt 8, a water-cooling block 9, and a disk-type thyristor 10. The rear baffle 1 is placed behind the front baffle 2. The spacer block 3 is fixed to the middle of the rear end of the front baffle 2. The upper parts of the two brackets 4 are respectively fixed to the front end of the rear baffle 1 and the rear end of the spacer block 3. The mounting hole 5 is opened at the front and rear ends of the right part of the front baffle 2, the spacer block 3, and the front bracket 4. The rear end of the threaded post 6 is installed at the front right part of the rear bracket 4 through the mounting hole 5. The insulating sleeve 7 is installed on the side of the threaded post 6 between the front and rear brackets 4. The spring clamping bolt 8 is installed on the threaded post 6 through the front end of the front baffle 2. The water-cooling block 9 is distributed on the threaded post 6 through the insulating sleeve 7. The disk-type thyristor 10 is installed between the water-cooling blocks 9.

[0014] The water-cooling block 9 includes a heat exchange block 11, a water-cooling heat exchange tube 12, a slide hole 13, and a positioning pin 14. The water-cooling heat exchange tube 12 is installed inside the heat exchange block 11. The slide hole 13 is opened at the right part of the heat exchange block 11, and the heat exchange block 11 is slidably connected to the insulating sleeve 7 through the slide hole 13. The positioning pins 14 are distributed at the left bottom of the front end of the water-cooling block 9 according to the lower contour of the disk-type thyristor 10.

[0015] The disk-type thyristor 10 is positioned on the positioning pins 14 by sliding up and down along the front end of the heat exchange block 11.

[0016] Working principle of the utility model: When the disc thyristor 10 needs to be replaced, the spring clamping bolt 8 is adjusted to loosen the rear baffle 1 and the front baffle 2, so that the water-cooled block 9 and the disc thyristor 10 stop the clamping state. Slide the disc thyristor 10 upward along the heat exchange block 11 to disengage from the positioning pin 14. Slide the replaced disc thyristor 10 downward along the heat exchange block 11 to contact the positioning pin 14, and complete the positioning under the multi-point support of the positioning pin 14. Adjust the spring clamping bolt 8 to clamp the rear baffle 1 and the front baffle 2, and the water-cooled block 9 and the disc thyristor 10 are clamped under the push of the rear baffle 1 and the front baffle 2. The heat exchange and cooling of the heat exchange block 11 in contact with the disc thyristor 10 are realized through the water-cooled heat exchange tube 12. The replacement efficiency is improved.

[0017] The above is the preferred embodiment of the utility model. For those of ordinary skill in the art, according to the teachings of the utility model, without departing from the principle and spirit of the utility model, the changes, modifications, substitutions and variations made to the implementation manners still fall within the protection scope of the utility model.

Claims

1. A cooling structure for quickly and accurately positioning a thyristor, comprising a rear baffle (1), a front baffle (2), a cushion block (3), a bracket (4), a mounting hole (5), a threaded column (6), an insulating sleeve (7), a spring clamping bolt (8), a water cooling block (9), and a disc-type thyristor (10), characterized in that: The rear baffle (1) is placed on the rear side of the front baffle (2), the cushion block (3) is fixed to the middle of the rear end of the front baffle (2), the upper parts of the two brackets (4) are respectively fixed to the front end of the rear baffle (1) and the rear end of the cushion block (3), the mounting holes (5) are opened at the front and rear right ends of the front baffle (2), the cushion block (3) and the front bracket (4), the rear end of the threaded column (6) is mounted on the front right part of the rear bracket (4) through the mounting holes (5), the insulating sleeve (7) is installed on the side end of the threaded column (6) between the front and rear brackets (4), the spring clamping bolt (8) is installed on the threaded column (6) through the front end of the front baffle (2), the water cooling block (9) is distributed on the threaded column (6) through the insulating sleeve (7), and the disc-type thyristor (10) is installed between the water cooling blocks (9).

2. A cooling structure for fast and accurate positioning of a thyristor according to claim 1, characterized in that: The water-cooling block (9) comprises a heat exchange block (11), a water-cooled heat exchange tube (12), a sliding hole (13), and a positioning pin (14); the water-cooled heat exchange tube (12) is installed inside the heat exchange block (11); the sliding hole (13) is opened at the right part of the heat exchange block (11), and the heat exchange block (11) is slidably connected to the insulating sleeve (7) through the sliding hole (13); and the positioning pin (14) is distributed at the left bottom of the front end of the water-cooling block (9) according to the lower contour of the disc-type thyristor (10).

3. A cooling structure for fast and accurate positioning of a thyristor according to claim 1, characterized in that: The disc-type thyristor (10) is positioned on the positioning pin (14) by sliding up and down along the front end of the heat exchange block (11).

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