CN215420086U - Impact-resistant pulse thyristor switch - Google Patents
Impact-resistant pulse thyristor switch Download PDFInfo
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- CN215420086U CN215420086U CN202121129861.1U CN202121129861U CN215420086U CN 215420086 U CN215420086 U CN 215420086U CN 202121129861 U CN202121129861 U CN 202121129861U CN 215420086 U CN215420086 U CN 215420086U
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- thyristor
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- resistant
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Abstract
The utility model discloses an impact-resistant pulse thyristor switch, which is characterized in that: including outside frame construction, circuit protection and power integrated module and thyristor assembly, the thyristor assembly is established in outside frame construction, and the thyristor assembly includes a plurality of thyristor devices that set up along same linear array series connection and establishes respectively about the thyristor device of series connection on being qualified for the next round of competitions female arranging with be qualified for the next round of competitions female arranging under with, the thyristor assembly, go up insulating cushion and insulating cushion's down the outside is equipped with and prevents a plurality ofly the supporting component of dislocation between the thyristor, supporting component's both ends are connected fixedly with outside frame construction. According to the utility model, the support component is arranged into an equilateral triangle and fixed on the outer side of the thyristor component, and the support component is matched with the friction force between the crimping surfaces of the thyristor devices to prevent the thyristor devices from being staggered, so that the thyristor component can reliably work, and the shock resistance is improved.
Description
Technical Field
The utility model relates to a shock-resistant pulse thyristor switch, in particular to a pulse thyristor switch with a shock-resistant structure and used for a medium-voltage direct-current circuit breaker.
Background
As one of core components in the medium-voltage direct-current circuit breaker, the pulse thyristor switch is usually used as a discharge switch of pulse current, has the advantages of small on-time step, easy time sequence control, capability of adopting optical fiber for isolation triggering and strong anti-electromagnetic interference capability. A conventional pulsed thyristor switch is formed by sequentially connecting a plurality of thyristor devices 24 in series and crimping according to the voltage class. However, the conventional thyristor pulse switch generally has a vertical structure formed by connecting a plurality of thyristors in series, and the circuit protection box and the power supply box adopt a backpack structure; however, for the pulsed thyristor switch applied to the strong impact situation, when the external strong impact situation is received, the thyristor device 24 is easily dislocated under the action of the inertia force due to the large acceleration, so that the distribution of the compression force is uneven, the contact resistance is increased, the pulsed thyristor switch is damaged when the large current is conducted, and similarly, the circuit protection box and the power supply box are easily damaged. The whole solid sealing of the whole thyristor component 2 is a solid shock-resistant method, but the whole solid sealing brings the problems of complex sealing process, incapability of maintaining devices and higher cost.
Therefore, there is a need to provide an improved pulsed thyristor switching assembly to solve the above technical problems.
Disclosure of Invention
The technical problem to be solved by the utility model is as follows: the existing pulse thyristor switch can not ensure the strong impact resistance and unreliable performance.
In order to solve the above problems, the technical solution of the present invention is to provide an impact-resistant pulse thyristor switch, which is characterized in that: the circuit protection and power supply integrated module is arranged on the external frame structure, and an optical fiber triggering interface and a power supply interface are arranged outside the circuit protection and power supply integrated module;
the thyristor assembly is arranged in an external frame structure and comprises a plurality of thyristor devices arranged in series along the same linear array, and an upper outgoing line busbar and a lower outgoing line busbar which are respectively arranged at the upper end and the lower end of the serially connected thyristor devices, an upper insulating cushion block is arranged on the upper end face of the upper outgoing line busbar, a lower insulating cushion block is arranged on the lower end face of the lower outgoing line busbar, a plurality of supporting assemblies for preventing dislocation among thyristors are arranged on the outer sides of the thyristor assembly, the upper insulating cushion block and the lower insulating cushion block, and the two ends of each supporting assembly are fixedly connected with the external frame structure.
Preferably, the external frame structure comprises an upper metal pressing plate, a lower metal pressing plate, metal screws, an insulating panel and insulating side plates, the upper metal pressing plate and the lower metal pressing plate are connected through the plurality of metal screws to form a cavity frame, the metal screws are sleeved with insulating sleeves, and the insulating panel and the insulating side plates are arranged on the side faces of the cavity frame to form a sealed cavity.
Preferably, the insulating side plate is provided with heat dissipation holes.
Preferably, the bottom of the lower metal pressing plate is provided with a trolley and a bracelet which are convenient for moving the pulse thyristor switch.
Preferably, the thyristor assembly is arranged in the cavity frame, and two ends of the support assembly are respectively connected and fixed with the upper metal pressing plate and the lower metal pressing plate.
Preferably, the support assembly forms an equilateral triangle structure outside the thyristor assembly, the upper insulating spacer and the lower insulating spacer.
Preferably, the support assembly comprises a first support member, a second support member and a third support member, the first support member, the second support member and the third support member are vertically arranged on the outer sides of the thyristor assembly, the upper insulating cushion block and the lower insulating cushion block to form an equilateral triangle structure, and two ends of the first support member, two ends of the second support member and two ends of the third support member are respectively connected and fixed with the upper metal pressing plate and the lower metal pressing plate.
Preferably, the first support piece, the second support piece and the third support piece are support rods, and skirt edges are arranged on the support rods and used for guaranteeing creepage distance.
Preferably, a plurality of disc springs are arranged between the lower insulating cushion block and the lower metal pressing plate and used for ensuring the crimping force among the thyristor devices.
Preferably, two adjacent thyristor devices are positioned by a center positioning pin.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the support component is arranged into an equilateral triangle and fixed on the outer side of the thyristor component, the support component is simple and easy to install, when the pulse thyristor switch is impacted strongly, the support component is matched with the friction force between the crimping surfaces of the thyristor devices to prevent the thyristor devices from being staggered, the thyristor component can work reliably, and the shock resistance of the thyristor component is improved. Meanwhile, the circuit protection and the power supply module are encapsulated into a flat structure, so that impact inertia force and damage to internal devices are reduced. Dolly and bracelet are installed to pulse thyristor switch bottom, make things convenient for pulse thyristor switch to remove.
Drawings
FIG. 1 is a schematic diagram of the overall configuration of a pulsed thyristor switch according to the present invention;
FIG. 2 is a schematic diagram of the overall configuration of a pulsed thyristor switch according to the present invention;
FIG. 3 is a schematic diagram of an internal structure of a pulsed thyristor switch according to the present invention;
FIG. 4 is an isometric view of the support assembly;
fig. 5 is a plan view of the support assembly.
Detailed Description
In order to make the utility model more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 5, a pulsed thyristor switch according to the present invention comprises an external frame structure 1, a thyristor assembly 2, a circuit protection and power supply integration module 3 and a support 23. The external frame structure 1 comprises an upper metal pressing plate 11, a lower metal pressing plate 14 and a plurality of metal lead screws 15, wherein the surfaces of the metal lead screws 15 are sleeved with insulating sleeves 18, the upper metal pressing plate 11 and the lower metal pressing plate 14 are fastened together through the metal lead screws 15 to form a cavity frame, an insulating panel 12 and an insulating side plate 13 are installed on the cavity frame, so that the external frame structure 1 forms a relatively sealed cavity, and heat dissipation holes are designed in the insulating side plate 13.
Dolly 16 and bracelet 17 are installed to the lower metal pressing plate 14 bottom of outside frame construction 1, conveniently remove, and the pulse thyristor switch carries out fixed mounting through the protruding portion of both sides of last metal pressing plate 11 and lower metal pressing plate 14 and external interface, and its structural strength can bear strong impact.
Circuit protection and power integrated module 3 are in the same place the integration of traditional split type circuit protection module and power box in fig. 2, and circuit protection and the local embedment of power integrated module 3 become the flat structure, change traditional bulge structure, reduce the bulge degree of depth, alleviate the inertial force under the strong impact condition, protective structure damages. The circuit protection and power supply integrated module 3 only has an optical fiber triggering interface and a power supply interface, and the upper end face and the lower end face of the circuit protection and power supply integrated module 3 are fastened on the external frame structure 1 through bolts.
Fig. 3 is a schematic diagram of the internal structure of the utility model, which mainly comprises a thyristor assembly 2, wherein the thyristor assembly 2 comprises a plurality of thyristor devices 24 arranged in series along the same linear array, and two adjacent thyristor devices 24 are positioned by a center positioning pin. The upper and lower ends of the plurality of series thyristor devices 24 are connected with an upper outgoing line busbar 22 and a lower outgoing line busbar 25, the thyristor devices 24, the upper outgoing line busbar 22 and the lower outgoing line busbar 25 all belong to high potential, in order to guarantee the pressure-resistant requirement, the upper end face of the upper outgoing line busbar 22 is provided with a high-strength upper insulating cushion block 21, the lower end face of the lower outgoing line busbar 25 is provided with a high-strength lower insulating cushion block 26, a plurality of disc springs 27 are arranged between the lower insulating cushion block 26 and the lower metal pressing plate 14, and the disc springs 27 are compressed through nuts on the adjusting screw rod 15 so as to guarantee the pressure-welding force between the thyristor devices 24.
As shown in fig. 4 and 5, the supporting assembly 23 includes a first supporting member 231, a second supporting member 232, and a third supporting member 233, wherein the first supporting member 231, the second supporting member 232, and the third supporting member 233 are made of high-strength insulating materials, and are all in the shape of supporting rods, and are designed with skirts to ensure a sufficient creepage distance. The first support 231, the second support 232 and the third support 233 are vertically installed to form an equilateral triangle and are arranged on the outer sides of the thyristor device 24, the upper insulating cushion block 21 and the lower insulating cushion block 26, the support assembly 23 is also designed to be of different outer diameter structures according to the difference between the outer diameters of the insulating cushion blocks 21 and 26 and the thyristor device 24, and the support assembly 23 is fixed with the upper metal pressing plate 11 and the lower metal pressing plate 14 through the upper end and the lower end respectively. Under the condition of strong impact, the arrangement mode of the supporting component 23 limits the degree of freedom of the thyristor device 24, the upper insulating cushion block 21 and the lower insulating cushion block 26, and the friction force of the pressure connection surface of the thyristor component 2 is matched to prevent the thyristor device 24 from being staggered, so that the thyristor device 24 can work reliably, and the impact resistance of the thyristor device 24 is improved.
Claims (10)
1. A shock-resistant pulsed thyristor switch characterized by: the circuit protection and power supply integrated module comprises an external frame structure (1), a circuit protection and power supply integrated module (3) and a thyristor assembly (2), wherein the external frame structure (1) is a relatively sealed cavity, the circuit protection and power supply integrated module (3) is of a flat structure, the circuit protection and power supply integrated module (3) is arranged on the external frame structure (1), and an optical fiber triggering interface and a power supply interface are arranged outside the circuit protection and power supply integrated module (3);
establish in external frame structure (1) thyristor assembly (2), thyristor assembly (2) include a plurality of thyristor device (24) along the same linear array series connection setting and establish respectively at thyristor device (24) of establishing at the upper and lower both ends of being qualified for the next round of competitions female arranging (22) and female arranging (25) of being qualified for the next round of competitions down, the up end of the female arranging (22) of being qualified for the next round of competitions on is equipped with insulating cushion (21), and the lower terminal surface of the female arranging (25) of being qualified for the next round of competitions is equipped with down insulating cushion (26), thyristor assembly (2), the outside of going up insulating cushion (21) and insulating cushion (26) down are equipped with and prevent a plurality ofly bracing component (23) of dislocation between the thyristor, the both ends and external frame structure (1) of bracing component (23) are connected fixedly.
2. A shock-resistant pulsed thyristor switch as claimed in claim 1 wherein: the external frame structure (1) comprises an upper metal pressing plate (11), a lower metal pressing plate (14), a metal screw rod (15), an insulating panel (12) and an insulating side plate (13), the upper metal pressing plate (11) and the lower metal pressing plate (14) are connected through a plurality of metal screw rods (15) to form a cavity frame, an insulating sleeve (18) is sleeved on the metal screw rods (15), and the insulating panel (12) and the insulating side plate (13) are arranged on the side face of the cavity frame to form a sealing cavity.
3. A shock-resistant pulsed thyristor switch as claimed in claim 2 wherein: the insulating side plate (13) is provided with heat dissipation holes.
4. A shock-resistant pulsed thyristor switch as claimed in claim 2 wherein: the bottom of the lower metal pressing plate (14) is provided with a trolley (16) and a hand ring (17) which are convenient for moving the pulse thyristor switch.
5. A shock-resistant pulsed thyristor switch as claimed in claim 2 wherein: the thyristor assembly (2) is arranged in the cavity frame, and two ends of the supporting assembly (23) are respectively connected and fixed with the upper metal pressing plate (11) and the lower metal pressing plate (14).
6. A shock-resistant pulsed thyristor switch as claimed in claim 1 wherein: and the support assembly (23) forms an equilateral triangle structure at the outer sides of the thyristor assembly (2), the upper insulating cushion block (21) and the lower insulating cushion block (26).
7. A shock-resistant pulsed thyristor switch as claimed in claim 2 wherein: the supporting assembly (23) comprises a first supporting piece (231), a second supporting piece (232) and a third supporting piece (233), the first supporting piece (231), the second supporting piece (232) and the third supporting piece (233) are vertically arranged on the outer sides of the thyristor assembly (2), the upper insulating cushion block (21) and the lower insulating cushion block (26) to form an equilateral triangle structure, and two ends of the first supporting piece (231), two ends of the second supporting piece (232) and two ends of the third supporting piece (233) are respectively connected and fixed with the upper metal pressing plate (11) and the lower metal pressing plate (14).
8. An impact-resistant pulsed thyristor switch as claimed in claim 7 wherein: the first support piece (231), the second support piece (232) and the third support piece (233) are support rods, and skirt edges are arranged on the support rods and used for guaranteeing creepage distance.
9. A shock-resistant pulsed thyristor switch as claimed in claim 2 wherein: a plurality of disc springs (27) are arranged between the lower insulating cushion block (26) and the lower metal pressing plate (14) and used for guaranteeing the crimping force among the thyristor devices (24).
10. A shock-resistant pulsed thyristor switch as claimed in claim 1 wherein: and two adjacent thyristor devices (24) are positioned by a central positioning pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121129861.1U CN215420086U (en) | 2021-05-25 | 2021-05-25 | Impact-resistant pulse thyristor switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121129861.1U CN215420086U (en) | 2021-05-25 | 2021-05-25 | Impact-resistant pulse thyristor switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215420086U true CN215420086U (en) | 2022-01-04 |
Family
ID=79677032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121129861.1U Active CN215420086U (en) | 2021-05-25 | 2021-05-25 | Impact-resistant pulse thyristor switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215420086U (en) |
-
2021
- 2021-05-25 CN CN202121129861.1U patent/CN215420086U/en active Active
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