Device and method for damping switch movements in high-voltage circuit breakers

文档序号:1409812 发布日期:2020-03-06 浏览:24次 中文

阅读说明:本技术 用于在高压断路器中阻尼开关运动的装置和方法 (Device and method for damping switch movements in high-voltage circuit breakers ) 是由 M.比茨 于 2018-06-13 设计创作,主要内容包括:本发明涉及一种用于阻尼开关运动的装置(1)和方法,所述装置具有壳体(3),所述壳体在空间上包围至少一个活塞(8)并且所述壳体至少部分地在空间上包围至少一个杆(7)。所述杆(7)相对于所述壳体(3)能运动地支承。并且所述至少一个活塞(8)限定第一流体体积(A),所述第一流体体积经由至少一个通流开口(10)与至少一个第二流体体积(B)直接或间接地流体连通。所述至少一个杆(7)在端部处空心管形地构造并且在空间上包围所述第一流体体积(A)。所述至少一个活塞(8)在所述至少一个杆(7)的空心管形的端部(13)中导引。用于在高压断路器中阻尼开关运动的方法包括在开关运动过程中的一段时间内,尤其在开关运动期间先前增大阻尼率之后减小用于阻尼的装置(1)的阻尼率。(The invention relates to a device (1) and a method for damping a switching movement, comprising a housing (3) which spatially surrounds at least one piston (8) and which at least partially spatially surrounds at least one rod (7). The lever (7) is mounted so as to be movable relative to the housing (3). And the at least one piston (8) defines a first fluid volume (A) which is in direct or indirect fluid communication with at least one second fluid volume (B) via at least one through-flow opening (10). The at least one rod (7) is hollow-tube-shaped at the end and spatially surrounds the first fluid volume (A). The at least one piston (8) is guided in a hollow tubular end (13) of the at least one rod (7). A method for damping a switching movement in a high voltage circuit breaker comprises reducing the damping rate of a device (1) for damping during a period of time during the switching movement, in particular after a previous increase of the damping rate during the switching movement.)

1. A device (1) for damping a switching movement, having a housing (3) which spatially surrounds at least one piston (8) and which at least partially spatially surrounds at least one rod (7), the rod (7) being movably mounted relative to the housing (3) and the at least one piston (8) defining a first fluid volume (A) which is in direct or indirect fluid communication with at least one second fluid volume (B) via at least one throughflow opening (10),

it is characterized in that the preparation method is characterized in that,

the at least one rod (7) is hollow-tube-shaped at the end and spatially surrounds the first fluid volume (A), and the at least one piston (8) is guided in the hollow-tube-shaped end of the at least one rod (7).

2. The device (1) according to claim 1,

it is characterized in that the preparation method is characterized in that,

the at least one piston (8) is arranged in a spatially fixed manner relative to the housing (3).

3. Device (1) according to one of the preceding claims,

the piston (8) is connected to the housing (3), in particular by a connecting strip (9), and/or the connecting strip (9) has a smaller cross section than the piston (8) perpendicular to a longitudinal axis (11) of the connecting strip (9).

4. Device (1) according to one of the preceding claims,

the first fluid volume (A) is connected to the second fluid volume (B) by a third fluid volume (C), in particular by means of a fluid connection of the first and third fluid volumes (A, C) and the third and second fluid volumes (C, B) via a through-flow opening (10) in a wall (12) of a hollow tubular end (13) of the at least one rod (7).

5. The device (1) according to claim 4,

it is characterized in that the preparation method is characterized in that,

the first fluid volume (A) is delimited by a wall (12) of the hollow tubular end (13) of the at least one rod (7) and a piston (8), and/or the third fluid volume (C) is formed between the rod (7) and the housing (3), and/or the second fluid volume (B) is delimited by a housing (3) and by a wall (12) of the hollow tubular end (13) of the at least one rod (7) and a piston (8), in particular with a connecting strip (9), and in particular comprises a fluid volume of an opening (14) which is closed by the housing (3).

6. Device (1) according to one of the preceding claims,

comprises a plurality of through-flow openings (10) which are arranged in particular along the longitudinal axis (11) of the rod (7) in the wall (12) of the hollow tubular end (13) of the at least one rod (7).

7. Device (1) according to one of the preceding claims,

comprising through-flow openings (10) with different through-flow cross sections.

8. Device (1) according to one of the preceding claims,

a hollow sleeve (6) is arranged between the housing (3) and the at least one rod (7), the hollow tubular end (13) of the at least one rod (7) being guided in the sleeve (6), the sleeve (6) having in particular a through-flow opening (10) in the sleeve (6).

9. The apparatus as set forth in claim 4,

it is characterized in that the preparation method is characterized in that,

a hollow sleeve (6) is arranged between the housing (3) and the at least one rod (7), the hollow tubular end (13) of the at least one rod (7) being guided in the sleeve (6), the sleeve (6) dividing the third fluid volume (C) into two parts (C1, C2), the sleeve being provided in particular with at least one through-flow opening (10), the through-flow opening (10) fluidically connecting the two parts (C1, C2) of the third fluid volume (C) to one another, and/or the sleeve having at least one through-flow opening (10), in particular in a wall (12) of the hollow tubular end (13) of the at least one rod (7), which fluidically connects a first part (C1) of the third fluid volume to the first fluid volume (A), and/or the sleeve having at least one through-flow opening (10) in the sleeve (6), in particular at the end of the sleeve ) Said at least one through-flow opening fluidly communicating a second portion (C2) of a third fluid volume (C) with said second fluid volume (B).

10. Device (1) according to one of the preceding claims,

the elements of the device (1), in particular the housing (3) and/or the at least one rod (7) and/or the at least one piston (8) and/or the at least one sleeve (6) and/or the at least one connecting strip (9), are cylindrical in design.

11. Device (1) according to one of the preceding claims,

the through-flow openings (10) are designed as permanent bores or milled sections and/or in a flute shape.

12. Device (1) according to one of the preceding claims,

the first fluid volume and/or the second fluid volume and/or the third fluid volume are in particular completely filled with a fluid and/or a fluid mixture, in particular with a gas, in particular air and/or clean air, and/or with a liquid, in particular oil.

13. Device (1) according to one of the preceding claims,

the device (1) is comprised by a high-voltage circuit breaker, in particular for damping switching movements.

14. Method for damping the switching movement in a high-voltage circuit breaker, in particular using a device (1) according to one of the preceding claims,

the damping rate of the device (1) for damping is reduced during a period of the switching movement, in particular after a previous increase of the damping rate during the switching movement.

15. The method of claim 14, wherein the first and second optical elements are selected from the group consisting of,

it is characterized in that the preparation method is characterized in that,

a) a rod (7) having a hollow tubular end (13) is moved in a housing (3) such that a piston (8) moves in the hollow tubular end (13) of the rod (7) and fluid flows from a first fluid volume (A) in the hollow tubular end (13) of the rod (7) via a through-flow opening (10) in a wall (12) of the hollow tubular end (13) into a third fluid volume (C) which is formed between the rod (7) and the housing (3), and fluid flows from a second fluid volume (B) enclosed by the piston (8), the end (13) of the rod (7) and the housing (3) via the through-flow opening (10) in the wall (12) of the hollow tubular end (13) of the rod (7) into the third fluid volume (C), or

b) The rod (7) having a hollow-tube-shaped end (13) is moved in a sleeve (6) arranged in the housing (3) such that the piston (8) is moved in the hollow-tube-shaped end (13) of the rod (7) and fluid flows from a first fluid volume (A) in the hollow-tube-shaped end (13) of the rod (7) via the throughflow openings (10) in the wall (12) of the hollow-tube-shaped end (13) into a first part (C1) of a third fluid volume (C) which is designed between the rod (7) and the sleeve (6) and fluid flows from a first part (C1) of the third fluid volume (C) via the throughflow openings (10) in the sleeve (6) into a second part (C2) of the third fluid volume (C), wherein the second part (C2) of the third fluid volume (C) is formed by the sleeve (6) and the housing (3), and fluid flows from a second fluid volume (B) enclosed by the piston (8), the end (13) of the rod (7), the sleeve (6) and the housing (3) via a through-flow opening (10) in the sleeve (6) into a second part (C2) of a third fluid volume (C).

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