A shell structure of a thyristor switch

Abstract

The present invention discloses a shell structure of a thyristor switch, and relates to the technical field of electrical components. It comprises a thyristor switch body, a face cover plate is fixedly installed on the front side of the thyristor switch body, current terminals are arranged on the upper and lower sides of the thyristor switch body at positions corresponding to the circuit board, mounting plates are fixedly installed at positions corresponding to the upper and lower current terminals of the thyristor switch body, a radiator is fixedly installed on the rear side of the thyristor switch body, and a fan is fixedly installed on the rear side of the radiator. The mounting holes on the flange of the side panel of the present invention can be directly installed with the universal crossbeam bracket of the switch cabinet without the need to open a hole for hanging the plate, so as to avoid the universal crossbeam bracket blocking the air outlet of the radiator, and the installation is simpler and more economical, so that the air outlet of the fan is completely discharged through the radiator, thereby improving the heat dissipation efficiency of the product, extending the service life of the fan, and making the operation of the product more reliable and energy-saving.

Description

Technical Field

[0001] The invention relates to the technical field of electrical components, in particular to a shell structure of a thyristor switch. Background Art

[0002] The thyristor switch is composed of a bidirectional thyristor, a circuit board, a heat sink, a fan, a casing, a temperature control switch, a conductive bar and terminals for connecting the inlet and outlet lines, and a casing. Since the bidirectional thyristor will generate a lot of heat during the conduction process, the bidirectional thyristor must be fixed to the radiator, and then the radiator must be forced to exhaust air through the fan to keep the entire product running at a suitable temperature. The existing thyristor casing structure is generally divided into two types: the first is that the fan is placed on the back to blow air to the radiator, and the installation hole of the product is located above the rear middle radiator outlet, and is fixed to the hanging plate with the hole, and the hanging plate is then installed with the crossbeam bracket of the switch cabinet; the second is that the fan is placed at the bottom to blow air to the heat sink, and the installation hole of the product is located on the back flange of the heat sink, and is installed with the crossbeam bracket of the switch cabinet.

[0003] In the prior art, the first structure requires the user to additionally process a perforated hanging plate, which increases the user cost and is inconvenient to install. In addition, since it is necessary to consider that some users directly use a crossbeam bracket for fixing, the crossbeam bracket will block the air outlet of the radiator. Therefore, air outlet holes must be added at both ends of the fan cover plate, so that part of the air is discharged without passing through the radiator, affecting the heat dissipation effect. In the second structure, when the fan is placed at the bottom of the radiator and blows upward, side leakage will occur, which also affects the heat dissipation effect. For this reason, a shell structure of a thyristor switch is proposed to solve the above problems. Summary of the invention

[0004] The present invention provides a shell structure of a thyristor switch, which has the advantages of preventing a crossbeam bracket from blocking an air outlet of a radiator, making installation easier and more economical, thereby improving the heat dissipation efficiency of the product and extending the service life of a fan, so as to solve the problem that the thyristor switch is inconvenient to install, the crossbeam bracket will block the air outlet of the radiator, and side air leakage will occur when the fan is placed at the bottom of the radiator and blows upward.

[0005] In order to avoid the crossbeam support from blocking the air outlet of the radiator, to make the installation more convenient and economical, to improve the heat dissipation efficiency of the product and to extend the service life of the fan, the present invention provides the following technical solutions: a shell structure of a thyristor switch, comprising a thyristor switch body, the thyristor switch body comprising a shell, a circuit board, a connecting conductive bar and a bidirectional thyristor, a circuit board is fixedly mounted on the front inner wall of the shell, a connecting conductive bar is fixedly mounted between the left and right inner walls of the shell on the rear side of the circuit board, a bidirectional thyristor is arranged on the rear side of the connecting conductive bar, a face cover is fixedly mounted on the front side of the thyristor switch body, and the upper and lower side surfaces of the thyristor switch body are fixedly mounted on the left and right inner walls of the shell. Current terminals are provided at corresponding positions of the circuit board, mounting plates are fixedly installed at corresponding positions of the upper and lower current terminals of the thyristor switch body, a radiator is fixedly installed on the rear side of the thyristor switch body, a fan is fixedly installed on the rear side of the radiator, a back cover plate is fixedly installed on the rear side of the fan by a first rivet, side panels are fixedly installed on the left and right sides of the thyristor switch body, the corresponding face cover plates, mounting plates and back cover plates of the thyristor switch body, the radiator and the fan by a second rivet, a flange is provided on the rear edge of the side panel, mounting holes are opened on the flange near the upper and lower positions, and the mounting holes use locking bolts to fix the thyristor switch body on the beam bracket.

[0006] As a preferred technical solution of the present invention, an indicator light is arranged on the front side of the face cover near the right side, and a through hole is opened on the face cover at a position corresponding to the indicator light.

[0007] As a preferred technical solution of the present invention, a control signal terminal is arranged on the front side of the cover plate near the left side, and a rectangular opening is opened on the cover plate corresponding to the control signal terminal.

[0008] As a preferred technical solution of the present invention, the flange of the side panel is located 0.5cm-0.8cm behind the back cover panel.

[0009] As a preferred technical solution of the present invention, the side panel and the flange are an integrally formed structure.

[0010] As a preferred technical solution of the present invention, the size of the air inlet of the back cover plate matches the size of the fan, and the left and right sides of the back cover plate fit with the left and right side plates.

[0011] As a preferred technical solution of the present invention, ventilation holes are not provided on the upper and lower end surfaces of the back cover plate.

[0012] Compared with the prior art, the present invention provides a housing structure of a thyristor switch, which has the following beneficial effects:

[0013] 1. The shell structure of the thyristor switch is fixedly installed on the left and right sides of the thyristor switch body, the radiator and the fan by setting a second rivet, and then the mounting hole on the flange is matched with the locking bolt, so that it can be directly installed with the beam bracket without opening a hole for hanging the plate. The thyristor switch body can be quickly disassembled and assembled, making the installation of the product easier and more economical.

[0014] 2. The shell structure of the thyristor switch has mounting holes on the left and right sides of the thyristor switch body to prevent the crossbeam bracket from blocking the air outlet of the radiator. In addition, there is no need to add air outlet holes at both ends of the back cover plate, so that the air outlet of the fan can all pass through the radiator and be discharged. Therefore, the heat dissipation efficiency of the product can be improved, so the operation time of the fan is reduced, thereby extending the service life of the fan and making the operation of the product more reliable and energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a front view of the present invention;

[0017] Figure 3 It is a left side view of the present invention;

[0018] Figure 4 It is a rear view of the present invention;

[0019] Figure 5 A bottom view of the present invention;

[0020] Figure 6 It is a left side cross-sectional view of the present invention;

[0021] Figure 7 It is a schematic diagram of the air outlet of the fan of the present invention.

[0022] In the figure: 1. thyristor switch body; 101. shell; 102. circuit board; 103. connecting conductive bar; 104. bidirectional thyristor; 2. surface cover; 3. current terminal; 4. mounting plate; 5. heat sink; 6. fan; 7. first rivet; 8. back cover; 9. second rivet; 10. side panel; 11. flange; 12. mounting hole; 13. indicator light; 14. through hole; 15. control signal terminal; 16. rectangular opening; 17. locking bolt; 18. crossbeam bracket. DETAILED DESCRIPTION

[0023] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 6 The present invention discloses a shell structure of a thyristor switch, including a thyristor switch body 1, the thyristor switch body 1 including a shell 101, a circuit board 102, a connecting conductive bar 103 and a bidirectional thyristor 104, the front inner wall of the shell 101 is fixedly mounted with the circuit board 102, the rear side of the circuit board 102 is fixedly mounted with the connecting conductive bar 103 between the left and right inner walls of the shell 101, the rear side of the connecting conductive bar 103 is provided with a bidirectional thyristor 104, the front side of the thyristor switch body 1 is fixedly mounted with a cover plate 2, the upper and lower sides of the thyristor switch body 1 are provided with current terminals 3 at positions corresponding to the circuit board 102, and the thyristor switch body The upper and lower current terminals 3 are fixedly mounted with mounting plates 4 at corresponding positions, the rear side of the thyristor switch body 1 is fixedly mounted with a heat sink 5, the rear side of the heat sink 5 is fixedly mounted with a fan 6, the rear side of the fan 6 is fixedly mounted with a back cover plate 8 through a first rivet 7, the thyristor switch body 1, the surface cover plates 2 corresponding to the heat sink 5 and the fan 6, the mounting plate 4 and the left and right sides of the back cover plate 8 are fixedly mounted with side plates 10 through second rivets 9, the rear edge of the side plate 10 is provided with a flange 11, the flange 11 is provided with mounting holes 12 near the upper and lower positions, and the mounting holes 12 are fixedly mounted on the thyristor switch body 1 on the crossbeam bracket 18 by using locking bolts 17.

[0025] Specifically, an indicator light 13 is disposed on the front side of the cover plate 2 near the right side, and a through hole 14 is opened on the cover plate 2 at a position corresponding to the indicator light 13 .

[0026] In this embodiment, the indicator light 13 is convenient for displaying the working state of the thyristor switch body 1 , and the through hole 14 is convenient for observing the indicator light 13 .

[0027] Specifically, a control signal terminal 15 is disposed on the front side of the cover plate 2 near the left side, and a rectangular opening 16 is opened on the cover plate 2 corresponding to the control signal terminal 15 .

[0028] In this embodiment, the control signal terminal 15 is electrically connected to an external controller to facilitate control of the thyristor switch body 1 , and the rectangular opening 16 facilitates installation of the control signal terminal 15 .

[0029] Specifically, the flange 11 of the side panel 10 is located behind the back cover panel 8 at a height of 0.5 cm-0.8 cm.

[0030] In this embodiment, the side panel 10 can block the left and right sides of the radiator 5, so that the wind blown by the fan 6 must flow out through the radiator 5, thereby improving the heat dissipation performance. In addition, the mounting hole 12 of the thyristor switch body 1 is located on the flange 11, so that the installation of the crossbeam bracket 18 will not block the air outlet of the radiator 5.

[0031] Specifically, the side panel 10 and the flange 11 are an integrally formed structure.

[0032] In this embodiment, the side plate 10 and the flange 11 are strong and firmly installed.

[0033] Specifically, the size of the air inlet of the back cover plate 8 matches the size of the fan 6 , and the left and right sides of the back cover plate 8 fit with the left and right side plates 10 .

[0034] In this embodiment, the back cover plate 8 makes the fan 6 more firmly installed, and seals the upper and lower sides of the fan 6 so that the wind blown by the fan 6 can accurately enter the radiator 5, effectively cooling the radiator 5.

[0035] Specifically, the upper and lower end surfaces of the back cover plate 8 are not provided with ventilation holes.

[0036] In this embodiment, the air blown out by the fan 6 can all be discharged through the radiator 5, and no air leakage will occur on the upper and lower end surfaces of the back cover plate 8, thereby effectively improving the heat dissipation effect.

[0037] The working principle and use process of the present invention are as follows: when in use, the fan 6 is placed on the back of the radiator 5, but the mounting hole 12 of the product is located on the flange 11 at the rear edge of the side panels 10 on both sides, and the depth of the side panels 10 extends to the back of the fan 6. The locking bolts 17 are inserted into the mounting holes 12, and the flanges 11 are connected and fixed to the crossbeam bracket 18 by the locking bolts 17, so that it can be directly installed with the crossbeam bracket 18 of the switch cabinet without opening holes for hanging plates, and the crossbeam bracket 18 will not block the air outlet of the radiator 5, and there is no need to add air outlet holes at both ends of the back cover plate 8, so that the air outlet of the fan 6 is all discharged through the radiator 5, thereby making the installation of the product simpler and more economical, and can improve the heat dissipation efficiency of the product, so that the operating time of the fan 6 is reduced, thereby extending the service life of the fan 6, and making the operation of the product more reliable and energy-saving.

[0038] To sum up, the shell structure of the thyristor switch can be directly installed with the crossbeam bracket 18 of the switch cabinet through the mounting hole 12 on the flange 11, without the need to drill a hole for hanging the plate, so as to prevent the crossbeam bracket 18 from blocking the air outlet of the radiator 5, and there is no need to add air outlet holes at both ends of the back cover plate 8, so that the air outlet of the fan 6 can all be discharged through the radiator 5, thereby making the installation of the product easier and more economical, and can improve the heat dissipation efficiency of the product, so that the operating time of the fan 6 is reduced, thereby extending the service life of the fan 6, and making the operation of the product more reliable and energy-saving.

[0039] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A housing structure of a thyristor switch, comprising a thyristor switch body (1), characterized in that: The thyristor switch body (1) comprises a housing (101), a circuit board (102), a connecting conductive bar (103) and a bidirectional thyristor (104); the circuit board (102) is fixedly mounted on the front inner wall of the housing (101); the connecting conductive bar (103) is fixedly mounted between the left and right inner walls of the housing (101) on the rear side of the circuit board (102); the bidirectional thyristor (104) is arranged on the rear side of the connecting conductive bar (103); a cover plate (2) is fixedly mounted on the front side of the thyristor switch body (1); current terminals (3) are arranged on the upper and lower sides of the thyristor switch body (1) at positions corresponding to the circuit board (102); a mounting plate (4) is fixedly mounted on the upper and lower current terminals (3) of the thyristor switch body (1); a heat sink (5) is fixedly mounted on the rear side of the thyristor switch body (1); a fan (6) is fixedly mounted on the rear side of the heat sink (5); the fan ( A back cover plate (8) is fixedly mounted on the rear side of the thyristor switch body (1), the radiator (5) and the fan (6) via a first rivet (7); side plates (10) are fixedly mounted on the left and right sides of the face cover plates (2), the mounting plate (4) and the back cover plate (8) corresponding to the thyristor switch body (1), the radiator (5) and the fan (6) via a second rivet (9); a flange (11) is provided on the rear edge of the side plate (10); mounting holes (12) are provided on the flange (11) near the upper and lower positions; the mounting holes (12) are fixedly mounted on the crossbeam bracket (18) using locking bolts (17); an indicator light (13) is provided on the front side of the face cover plate (2) near the right side; a through hole (14) is provided on the face cover plate (2) at a position corresponding to the indicator light (13); a control signal terminal (15) is provided on the front side of the face cover plate (2) near the left side; a rectangular opening (16) is provided on the face cover plate (2) corresponding to the control signal terminal (15).

2. The housing structure of a thyristor switch according to claim 1, characterized in that: The flange (11) of the side panel (10) is located 0.5 cm to 0.8 cm behind the back cover (8).

3. The housing structure of a thyristor switch according to claim 1, characterized in that: The side plate (10) and the flange (11) are an integrally formed structure.

4. The housing structure of a thyristor switch according to claim 1, characterized in that: The size of the air inlet of the back cover plate (8) matches the size of the fan (6), and the left and right sides of the back cover plate (8) fit closely with the left and right side plates (10).

5. The housing structure of a thyristor switch according to claim 1, characterized in that: The upper and lower end surfaces of the back cover plate (8) are not provided with ventilation holes.

Images