WO2013120238A1 - Cushion for high-voltage switch - Google Patents
Cushion for high-voltage switch Download PDFInfo
- Publication number
- WO2013120238A1 WO2013120238A1 PCT/CN2012/000899 CN2012000899W WO2013120238A1 WO 2013120238 A1 WO2013120238 A1 WO 2013120238A1 CN 2012000899 W CN2012000899 W CN 2012000899W WO 2013120238 A1 WO2013120238 A1 WO 2013120238A1
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- WO
- WIPO (PCT)
- Prior art keywords
- piston
- cylinder
- block
- voltage switch
- damper
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
Definitions
- the utility model relates to a high-voltage switch device, in particular to a buffer device for a high-voltage, ultra-high-voltage isolating switch and a grounding switch for closing and opening.
- the purpose of the utility model is to provide a buffer capable of reducing the impact of the high-voltage, ultra-high-voltage isolating switch and the grounding switch on the porcelain bottle during the closing and opening.
- a buffer for high-voltage switch comprising a cylinder body with an open upper end, a piston is axially sealed and slidably fitted with a piston, and a spring is arranged between the piston and the bottom of the cylinder body,
- the upper end opening of the cylinder body has an annular limiting edge for preventing the piston from being disengaged from the cylinder block, and the inner hole of the annular limiting edge is used for the conductive rod of the high voltage switch to pass through to contact and cooperate with the piston, and the cylinder body Vent holes are provided at the bottom.
- the upper end surface of the piston has a cylindrical section extending from the through hole of the limit cover.
- the piston passes through an upper block fixed on the end surface of the cylindrical section for contact with the conductive rod of the high voltage switch, and the cylindrical section of the piston is provided with a groove engaged with the upper block.
- the groove of the piston is a tapered groove having a small upper end and a large lower end, and the upper block is a tapered structure that fits into the tapered groove.
- the bottom of the cylinder body is fixed with a screw extending in the axial direction of the cylinder body for fixing with the static contact of the high-voltage switch, and the upper end of the screw extending into the cylinder body is provided with a clamping block matched with the inner surface of the bottom portion of the cylinder block, the screw
- the upper screw is provided with a nut that cooperates with the outer surface of the bottom of the cylinder.
- the screw is press-fitted with the piston by a lower pad fixed on the block, and the upper end surface of the block is provided with a groove that is engaged with the lower block.
- the groove on the block is a tapered groove having a small upper end and a large lower end, and the lower block is a pyramid structure which is matched with the tapered groove.
- a rubber pad is disposed between the block of the screw and the bottom of the cylinder.
- the damper of the above structure is configured such that a piston is axially sealed and slidably fitted with a piston, and a spring is arranged between the piston and the bottom of the cylinder body, and cooperates with the high-voltage switch to contact the piston when the conductive rod is impacted.
- the spring and the air in the cylinder are compressed to buffer the impact of the conductive rod to reduce the impact on the porcelain bottle.
- the spring pushes the piston to reset.
- the bottom of the cylinder is provided with a vent hole to avoid air resistance. Excessive influence on the division and closing of the high voltage switch.
- FIG. 1 is a schematic structural view of an embodiment of the present invention.
- the utility model relates to a buffer for a high-voltage switch.
- the cylinder 3 of the buffer is a cylindrical structure with an open upper end, and the piston 3 is axially slidably fitted with a piston 9 in the cylinder.
- the opening of the opening 3 is fixed by a screw, and the limiting edge 8 is used to prevent the piston 9 from coming off the cylinder 3 during the movement.
- the piston 9 is a stepped shaft, and the small diameter section of the stepped shaft extends.
- the inner hole of the limiting edge 8 is arranged with a spring 6 between the end surface of the large diameter section of the stepped shaft and the inner wall of the bottom of the cylinder block 3, and an annular groove is formed on the circumference of the large diameter section of the stepped shaft, the annular groove A 0-type seal ring 7 is provided for sealing the piston 9 and the inner wall of the cylinder block 3.
- the conductive rod of the high-voltage switch contacts the upper end surface of the piston 9 under the action of inertia and pushes the piston 9 to compress the spring 6.
- the piston 9 is subjected to the resistance of the spring 6 and the air inside the cylinder 3, thereby realizing the buffering of the conductive rod.
- the bottom of the cylinder block 3 is provided with a vent hole 11.
- the bottom of the cylinder block 3 is provided with a screw 1 extending along the axial direction of the cylinder block.
- the upper end of the screw shaft 1 extending into the cylinder block 3 is fixed with a block which is in contact with the inner surface of the bottom portion of the cylinder block 3.
- the screw 1 is screwed up.
- the nut 2 is in contact with the outer surface of the bottom of the cylinder block 3, and the washer 1 is sleeved between the nut 2 and the cylinder block 3.
- the screw 1 is fixed to the cylinder block 3 by tightening the nut 2. In the specific operation, the whole device can be directly fixed on the static contact of the high-voltage switch through the screw 1, and the operation is convenient.
- the end surface of the small diameter section of the piston 9 is provided with a tapered groove having a small upper end and a large lower end.
- the tapered groove is provided with a cone structure upper block 10 which is matched with the piston, and the piston 9 passes through the upper block 10 Contacting the conductive rod of the high-voltage switch to reduce the impact of the conductive rod on the piston 9;
- the upper end surface of the block of the screw 1 is provided with a tapered groove having a small upper end and a large lower end, and the tapered groove is fitted with the same
- the underlying block 5 of the tapered structure is fitted, and the screw 1 is in contact with the piston 9 through the lower block 5 to reduce the impact of the piston 9 on the screw 1.
- the piston 9 is a stepped shaft, and in other embodiments, it can also be considered as a piston of a single-shaft structure.
- a cylindrical section is fixed on the upper end surface, and of course, the cylindrical section is not provided, and the conductive rod of the high-voltage switch directly protrudes into the cylinder body to be in contact with the piston.
- the above embodiment When the above embodiment is applied to the isolating switch, it is installed at the end position of the disconnecting switch.
- the grounding switch When the grounding switch is applied, the grounding switch is installed at the end of the opening, and the conductive rod of the isolating switch or the grounding switch contacts the upper block.
- the respective conductive rods press the piston 9 downward under inertia, at which time the piston 9 is subjected to the resistance of the air in the cylinder 3 and the spring 6, which slows down the speed at which the piston 9 moves downward, thereby opposing the conductive rod Play a buffering role.
- the conductive rod is disengaged from the upper block 10
- the piston 9 is returned to the original position by the action of the spring 6.
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
A cushion for a high-voltage switch comprises a cylinder (3) with an opening at an upper end. A piston (9) is axially sealed in the cylinder in a sliding manner, a spring (6) is urged between the piston and the bottom of the cylinder, an annular stopping edge (8) for stopping the piston from separating from the cylinder is arranged at the opening at the upper end of the cylinder, and an inner hole of the annular stopping edge is used for a conductive rod of the high-voltage switch to pass through, so that the conductive rod contacts and fits with the piston; and an air vent (11) is disposed at the bottom of the cylinder. As the piston fits with the high-voltage switch, when the conductive rod produces an impact, the conductive rod contacts the piston, and the air around the spring and in the cylinder is compressed to cushion the impact of the conductive rod, thereby reducing the impact on the porcelain. When the conductive rod resets, the spring pushes the piston to reset.
Description
一种高压开关用缓冲器 技术领域 Buffer for high voltage switch
本实用新型涉及一种高压开关设备， 具体涉及高压、 特高压隔离开关及接地开关合、 分 闸用的缓冲装置。 The utility model relates to a high-voltage switch device, in particular to a buffer device for a high-voltage, ultra-high-voltage isolating switch and a grounding switch for closing and opening.
背景技术 Background technique
随着国家三纵三横一环网特高压电网建设的逐步开展， 为髙压、 特高压开关设备提供了 巨大的市场潜力， 如隔离开关、 接地开关说， 与此同时要求高压、 特高压开关设备必须具备良 好的使用性能和可靠性。 隔离开关及接地开关由于端口距离大， 在隔离开关合闸以及接地开 关分闸时， 各自的导电杆在惯性的作用下， 对瓷瓶书等产生冲击， 这种冲击影响了产品的使用 性能和可靠性。 With the gradual development of the national three vertical, three horizontal and one ring network UHV power grid construction, it has provided huge market potential for rolling and UHV switchgear, such as isolation switch and grounding switch, and at the same time requires high voltage and ultra high voltage switch. Equipment must have good performance and reliability. Due to the large distance between the disconnector and the grounding switch, when the isolating switch is closed and the grounding switch is opened, the respective conductive rods have an impact on the porcelain bottle under the action of inertia. This impact affects the performance and reliability of the product. Sex.
实用新型内容 Utility model content
本实用新型的目的是提供一种能够减小高压、 特高压隔离开关以及接地开关的导电杆在 合、 分闸时对瓷瓶产生冲击的缓冲器。 The purpose of the utility model is to provide a buffer capable of reducing the impact of the high-voltage, ultra-high-voltage isolating switch and the grounding switch on the porcelain bottle during the closing and opening.
本实用新型采用如下技术方案： 一种高压开关用缓冲器， 包括上端开口的缸体， 缸体内 轴向密封滑动装配有活塞， 所述活塞和缸体底部之间顶装有弹簧， 所述缸体的上端开口处具 有防止所述活塞脱离缸体的环形限位沿， 所述环形限位沿的内孔用于供高压开关的导电杆穿 过以便与所述活塞接触配合， 且缸体底部开设有通气孔。 The utility model adopts the following technical solutions: a buffer for high-voltage switch, comprising a cylinder body with an open upper end, a piston is axially sealed and slidably fitted with a piston, and a spring is arranged between the piston and the bottom of the cylinder body, The upper end opening of the cylinder body has an annular limiting edge for preventing the piston from being disengaged from the cylinder block, and the inner hole of the annular limiting edge is used for the conductive rod of the high voltage switch to pass through to contact and cooperate with the piston, and the cylinder body Vent holes are provided at the bottom.
所述活塞的上端面上具有由所述限位盖的通孔中伸出的圆柱段。 The upper end surface of the piston has a cylindrical section extending from the through hole of the limit cover.
所述活塞通过固定在其圆柱段的端面上的上垫块用于与高压开关的导电杆接触配合， 活 塞的圆柱段上开设有与所述上垫块卡配的凹槽。 The piston passes through an upper block fixed on the end surface of the cylindrical section for contact with the conductive rod of the high voltage switch, and the cylindrical section of the piston is provided with a groove engaged with the upper block.
所述活塞的凹槽为上端小、 下端大的锥形槽， 所述上垫块为与所述锥形槽吻合配合的锥 体结构。 The groove of the piston is a tapered groove having a small upper end and a large lower end, and the upper block is a tapered structure that fits into the tapered groove.
所述缸体底部固定有沿缸体轴向延伸的用于与高压开关的静触头固定的螺杆， 螺杆的伸 入缸体内的上端设置有与缸体底部内表面配合的卡块， 螺杆上旋设有与缸体底部外表面配合 的螺母。 The bottom of the cylinder body is fixed with a screw extending in the axial direction of the cylinder body for fixing with the static contact of the high-voltage switch, and the upper end of the screw extending into the cylinder body is provided with a clamping block matched with the inner surface of the bottom portion of the cylinder block, the screw The upper screw is provided with a nut that cooperates with the outer surface of the bottom of the cylinder.
所述螺杆通过固定在卡块上的下垫块与所述活塞顶压配合， 所述卡块的上端面上开设有 与所述下垫块卡配的凹槽。 The screw is press-fitted with the piston by a lower pad fixed on the block, and the upper end surface of the block is provided with a groove that is engaged with the lower block.
所述卡块上的凹槽为上端小、 下端大的锥形槽， 所述下垫块为与所述锥形槽吻合配合的 锥体结构。
所述螺杆的卡块与缸体底部之间设有橡胶垫。 The groove on the block is a tapered groove having a small upper end and a large lower end, and the lower block is a pyramid structure which is matched with the tapered groove. A rubber pad is disposed between the block of the screw and the bottom of the cylinder.
采用上述结构的缓冲器， 缓冲器的缸体内轴向密封滑动装配有活塞， 活塞与缸体底部之 间顶装有弹簧， 通过与高压开关的配合， 在导电杆产生冲击时与活塞接触， 弹簧以及缸体内 的空气均压缩对导电杆的冲击进行缓冲， 减小对瓷瓶的冲击， 在导电杆复位时， 弹簧推动活 塞复位； 另外， 缸体的底部开设有通气孔， 可以避免空气阻力过大影响高压开关的分、 合 闸。 The damper of the above structure is configured such that a piston is axially sealed and slidably fitted with a piston, and a spring is arranged between the piston and the bottom of the cylinder body, and cooperates with the high-voltage switch to contact the piston when the conductive rod is impacted. The spring and the air in the cylinder are compressed to buffer the impact of the conductive rod to reduce the impact on the porcelain bottle. When the conductive rod is reset, the spring pushes the piston to reset. In addition, the bottom of the cylinder is provided with a vent hole to avoid air resistance. Excessive influence on the division and closing of the high voltage switch.
附图说明 DRAWINGS
图 1 为本实用新型的实施例结构示意图。 FIG. 1 is a schematic structural view of an embodiment of the present invention.
具体实施方式 detailed description
本实用新型一种高压开关用缓冲器的实施例： 如图 1所示， 该缓冲器的缸体 3为上端开 口的筒状结构， 缸体 3内轴向滑动装配有活塞 9， 在缸体 3的开口处通过螺钉固定有环形限 位沿 8， 限位沿 8用于防止活塞 9在移动过程中脱离缸体 3,所述活塞 9为阶梯轴， 阶梯轴的 小直径段伸出所述限位沿 8的内孔， 阶梯轴的大直径段的端面与缸体 3底部的内壁之间顶装 有弹簧 6， 且阶梯轴的大直径段的圆周上开设有环形凹槽， 环形凹槽内装有 0型密封圈 7， 用以实现活塞 9与缸体 3内壁的密封。 具体操作时， 高压开关的导电杆在惯性作用下与活塞 9的上端面接触并推动活塞 9压缩弹簧 6， 活塞 9受到弹簧 6以及缸体 3内部空气的阻力， 从而实现对导电杆的缓冲， 为了防止空气阻力过大影响导电杆的运动， 所述缸体 3底部开设 有通气孔 11。 The utility model relates to a buffer for a high-voltage switch. As shown in FIG. 1 , the cylinder 3 of the buffer is a cylindrical structure with an open upper end, and the piston 3 is axially slidably fitted with a piston 9 in the cylinder. The opening of the opening 3 is fixed by a screw, and the limiting edge 8 is used to prevent the piston 9 from coming off the cylinder 3 during the movement. The piston 9 is a stepped shaft, and the small diameter section of the stepped shaft extends. The inner hole of the limiting edge 8 is arranged with a spring 6 between the end surface of the large diameter section of the stepped shaft and the inner wall of the bottom of the cylinder block 3, and an annular groove is formed on the circumference of the large diameter section of the stepped shaft, the annular groove A 0-type seal ring 7 is provided for sealing the piston 9 and the inner wall of the cylinder block 3. In a specific operation, the conductive rod of the high-voltage switch contacts the upper end surface of the piston 9 under the action of inertia and pushes the piston 9 to compress the spring 6. The piston 9 is subjected to the resistance of the spring 6 and the air inside the cylinder 3, thereby realizing the buffering of the conductive rod. In order to prevent the air resistance from being excessively affected to affect the movement of the conductive rod, the bottom of the cylinder block 3 is provided with a vent hole 11.
所述缸体 3底部穿设有沿缸体轴向延伸的螺杆 1， 螺杆 1伸入缸体 3内的上端固定有与 缸体 3底部内表面接触配合的卡块， 螺杆 1上旋设有与缸体 3底部外表面接触配合的螺母 2, 且螺杆 1上位于螺母 2与缸体 3之间套设有垫片 12， 通过拧紧螺母 2实现螺杆 1固定在 缸体 3上。 具体操作时， 整个装置通过螺杆 1可以直接固定在高压开关的静触头上， 操作方 便。 在活塞 9压缩弹簧 6运动过程中， 所述活塞 9最终与螺杆 1上的卡块接触， 为了减小螺 杆 1对缸体 3底部的冲击， 所述螺杆 1的卡块与缸体 3底部之间顶装有橡胶垫 4。 The bottom of the cylinder block 3 is provided with a screw 1 extending along the axial direction of the cylinder block. The upper end of the screw shaft 1 extending into the cylinder block 3 is fixed with a block which is in contact with the inner surface of the bottom portion of the cylinder block 3. The screw 1 is screwed up. The nut 2 is in contact with the outer surface of the bottom of the cylinder block 3, and the washer 1 is sleeved between the nut 2 and the cylinder block 3. The screw 1 is fixed to the cylinder block 3 by tightening the nut 2. In the specific operation, the whole device can be directly fixed on the static contact of the high-voltage switch through the screw 1, and the operation is convenient. During the movement of the compression spring 6 of the piston 9, the piston 9 finally comes into contact with the block on the screw 1, and in order to reduce the impact of the screw 1 on the bottom of the cylinder 3, the block of the screw 1 and the bottom of the cylinder 3 A rubber mat 4 is placed on the top.
所述活塞 9的小直径段的端面上开设有上端小、 下端大的锥形槽， 该锥形槽内卡装有与 其吻合配合的锥体结构上垫块 10， 活塞 9通过上垫块 10与高压开关的导电杆接触配合， 减 小导电杆对活塞 9的冲击； 所述螺杆 1的卡块上端面上开设有上端小、 下端大的锥形槽， 该 锥形槽内卡装有与其吻合配合的锥体结构下垫块 5， 螺杆 1 通过下垫块 5与活塞 9接触配 合， 减小活塞 9对螺杆 1的冲击。 The end surface of the small diameter section of the piston 9 is provided with a tapered groove having a small upper end and a large lower end. The tapered groove is provided with a cone structure upper block 10 which is matched with the piston, and the piston 9 passes through the upper block 10 Contacting the conductive rod of the high-voltage switch to reduce the impact of the conductive rod on the piston 9; the upper end surface of the block of the screw 1 is provided with a tapered groove having a small upper end and a large lower end, and the tapered groove is fitted with the same The underlying block 5 of the tapered structure is fitted, and the screw 1 is in contact with the piston 9 through the lower block 5 to reduce the impact of the piston 9 on the screw 1.
上述实施例中， 所述活塞 9为阶梯轴， 在其它实施例中， 也可以认为在单轴结构活塞的
上端面上固定一个圆柱段， 当然也可以不设置圆柱段， 高压开关的导电杆直接伸入缸体内与 活塞接触。 In the above embodiment, the piston 9 is a stepped shaft, and in other embodiments, it can also be considered as a piston of a single-shaft structure. A cylindrical section is fixed on the upper end surface, and of course, the cylindrical section is not provided, and the conductive rod of the high-voltage switch directly protrudes into the cylinder body to be in contact with the piston.
上述实施例在隔离开关上应用时， 安装在隔离开关处于合闸终了位置， 在接地开关上应用 时， 安装在接地开关处于分闸终了位置， 隔离开关或接地开关的导电杆接触到上垫块 10 后， 在惯性作用下各自的导电杆向下压活塞 9， 此时活塞 9受到压缸体 3内的空气及弹簧 6 的阻力， 此阻力减缓活塞 9向下运动的速度， 从而对导电杆起到缓冲作用。 当导电杆与上垫 块 10脱离后， 活塞 9在弹簧 6的作用下， 又回复到原位。
When the above embodiment is applied to the isolating switch, it is installed at the end position of the disconnecting switch. When the grounding switch is applied, the grounding switch is installed at the end of the opening, and the conductive rod of the isolating switch or the grounding switch contacts the upper block. After 10, the respective conductive rods press the piston 9 downward under inertia, at which time the piston 9 is subjected to the resistance of the air in the cylinder 3 and the spring 6, which slows down the speed at which the piston 9 moves downward, thereby opposing the conductive rod Play a buffering role. When the conductive rod is disengaged from the upper block 10, the piston 9 is returned to the original position by the action of the spring 6.
Claims
1. 一种高压开关用缓冲器， 其特征在于： 包括上端开口的缸体， 缸体内轴向密 封滑动装配有活塞，所述活塞和缸体底部之间顶装有弹簧，所述缸体的上端开口 处具有防止所述活塞脱离缸体的环形限位沿，所述环形限位沿的内孔用于供高压 开关的导电杆穿过以便与所述活塞接触配合， 且缸体底部开设有通气孔。 A damper for a high-voltage switch, comprising: a cylinder having an open upper end, a piston in the cylinder axially slidingly fitted with a piston, and a spring is arranged between the piston and the bottom of the cylinder, the cylinder The upper end opening has an annular limiting edge for preventing the piston from coming off the cylinder, and the inner hole of the annular limiting edge is used for the conductive rod of the high voltage switch to pass through to cooperate with the piston, and the bottom of the cylinder is opened. There are vent holes.
2. 根据权利要求 1所述的高压开关用缓冲器， 其特征在于： 所述活塞的上端面 上具有由所述限位盖的通孔中伸出的圆柱段。 2. The damper for a high voltage switch according to claim 1, wherein the upper end surface of the piston has a cylindrical section extending from the through hole of the limiting cover.
3. 根据权利要求 2所述的高压开关用缓冲器， 其特征在于： 所述活塞通过固定 在其圆柱段的端面上的上垫块用于与高压开关的导电杆接触配合，活塞的圆柱段 上开设有与所述上垫块卡配的凹槽。 3. The high-voltage switch damper according to claim 2, wherein: the piston passes through an upper block fixed on an end surface of the cylindrical section for contact with a conductive rod of the high-voltage switch, and the cylindrical section of the piston The upper opening is provided with a groove that is engaged with the upper block.
4. 根据权利要求 3所述的高压开关用缓冲器， 其特征在于： 所述活塞的凹槽为 上端小、 下端大的锥形槽， 所述上垫块为与所述锥形槽吻合配合的锥体结构。 The damper for a high-voltage switch according to claim 3, wherein the groove of the piston is a tapered groove having a small upper end and a large lower end, and the upper block is matched with the tapered groove. Cone structure.
5. 根据权利要求 1-4任意一项所述的高压开关用缓冲器， 其特征在于： 所述缸 体底部固定有沿缸体轴向延伸的用于与高压开关的静触头固定的螺杆，螺杆的伸 入缸体内的上端设置有与缸体底部内表面配合的卡块，螺杆上旋设有与缸体底部 外表面配合的螺母。 The damper for high-voltage switch according to any one of claims 1 to 4, characterized in that: the bottom of the cylinder body is fixed with a screw extending in the axial direction of the cylinder for fixing with the static contact of the high-voltage switch. The upper end of the screw extending into the cylinder body is provided with a block which cooperates with the inner surface of the bottom of the cylinder block, and the screw is screwed with a nut which cooperates with the outer surface of the bottom of the cylinder block.
6. 根据权利要求 5所述的高压开关用缓冲器， 其特征在于： 所述螺杆通过固定 在卡块上的下垫块与所述活塞顶压配合，所述卡块的上端面上开设有与所述下垫 块卡配的凹槽。 The damper for a high-voltage switch according to claim 5, wherein: the screw is press-fitted to the piston by an underlying block fixed to the block, and the upper end surface of the block is opened a groove that is engaged with the lower block.
7. 根据权利要求 6所述的高压开关用缓冲器， 其特征在于： 所述卡块上的凹槽 为上端小、 下端大的锥形槽， 所述下垫块为与所述锥形槽吻合配合的锥体结构。 The damper for a high-voltage switch according to claim 6, wherein: the groove on the block is a tapered groove having a small upper end and a large lower end, and the lower block is a tapered groove A matching cone structure.
8. 根据权利要求 7所述的高压开关用缓冲器， 其特征在于： 所述螺杆的卡块与 缸体底部之间设有橡胶垫。 The high-voltage switch damper according to claim 7, wherein a rubber pad is provided between the block of the screw and the bottom of the cylinder.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220052360 CN202549643U (en) | 2012-02-17 | 2012-02-17 | Buffer for high-voltage switch |
| CN201220052360.2 | 2012-02-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013120238A1 true WO2013120238A1 (en) | 2013-08-22 |
Family
ID=47170234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2012/000899 WO2013120238A1 (en) | 2012-02-17 | 2012-06-30 | Cushion for high-voltage switch |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202549643U (en) |
| WO (1) | WO2013120238A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912622B (en) * | 2012-12-31 | 2016-08-03 | 北京双杰电气股份有限公司 | Damping unit and switching device |
| DE112013007256T5 (en) * | 2013-07-19 | 2016-04-14 | General Electric Company | Electrical switching device comprising an adjustable damping arrangement |
| CN104290052B (en) * | 2014-06-19 | 2017-06-06 | 国家电网公司 | A kind of buffer assembly tooling |
| CN106960738A (en) * | 2017-04-27 | 2017-07-18 | 南京南瑞继保电气有限公司 | A kind of high-speed circuit breaker mixed type buffer |
| CN110491714B (en) * | 2017-07-24 | 2021-08-03 | 许继集团有限公司 | Isolating switch and moving contact thereof |
| CN107464720B (en) * | 2017-08-10 | 2019-10-08 | 河南平高电气股份有限公司 | Static contact component and the disconnecting switch for using the component |
| CN114664582B (en) * | 2021-12-24 | 2024-09-20 | 平高集团有限公司 | Breaker operating mechanism brake separating buffer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2221826Y (en) * | 1994-11-07 | 1996-03-06 | 常州市东南电力设备厂 | Brake-opening air buffer of vacuum circuit breaker |
| JP2006196317A (en) * | 2005-01-13 | 2006-07-27 | Toshiba Corp | Vacuum interrupting device |
| CN2935443Y (en) * | 2006-08-14 | 2007-08-15 | 河南森源电气股份有限公司 | Porcelain vase fixation pedestal buffer structure for outdoor isolating switch |
| CN201252013Y (en) * | 2008-09-05 | 2009-06-03 | 河南森源电气股份有限公司 | Oil buffer for high-voltage alternating current breaker |
-
2012
- 2012-02-17 CN CN 201220052360 patent/CN202549643U/en not_active Expired - Lifetime
- 2012-06-30 WO PCT/CN2012/000899 patent/WO2013120238A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2221826Y (en) * | 1994-11-07 | 1996-03-06 | 常州市东南电力设备厂 | Brake-opening air buffer of vacuum circuit breaker |
| JP2006196317A (en) * | 2005-01-13 | 2006-07-27 | Toshiba Corp | Vacuum interrupting device |
| CN2935443Y (en) * | 2006-08-14 | 2007-08-15 | 河南森源电气股份有限公司 | Porcelain vase fixation pedestal buffer structure for outdoor isolating switch |
| CN201252013Y (en) * | 2008-09-05 | 2009-06-03 | 河南森源电气股份有限公司 | Oil buffer for high-voltage alternating current breaker |
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| Publication number | Publication date |
|---|---|
| CN202549643U (en) | 2012-11-21 |
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