CN105374618A - Combined type solid-sealed polar pole - Google Patents
Combined type solid-sealed polar pole Download PDFInfo
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- CN105374618A CN105374618A CN201510840776.9A CN201510840776A CN105374618A CN 105374618 A CN105374618 A CN 105374618A CN 201510840776 A CN201510840776 A CN 201510840776A CN 105374618 A CN105374618 A CN 105374618A
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- 238000002955 isolation Methods 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims description 17
- 239000007787 solid Substances 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 7
- 230000003068 static effect Effects 0.000 abstract description 33
- 238000009434 installation Methods 0.000 description 19
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
本发明公开了一种组合式固封极柱，该组合式固封极柱包括真空灭弧室、与真空灭弧室静端连接的上出线座及与真空灭弧室动端连接的下出线座，上出线座和/或下出线座上设有用于与隔离开关的隔离触头滑动连接的隔离支座。本发明固封极柱实现开关柜主开关与隔离开关隔离支座一体化设置，使固封极柱复合了主开关及隔离开关两种功能。结构紧凑，减小了外形尺寸。
The invention discloses a combined solid-seal pole. The combined solid-seal pole comprises a vacuum interrupter, an upper outlet seat connected to the static end of the vacuum interrupter, and a lower outlet connected to the moving end of the vacuum interrupter. The upper outlet seat and/or the lower outlet seat are provided with an isolation support for sliding connection with the isolation contact of the isolation switch. The solid-sealed pole of the invention realizes the integrated setting of the main switch of the switch cabinet and the isolating switch isolating support, so that the solid-sealed pole combines the two functions of the main switch and the isolating switch. Compact structure, reducing the overall size.
Description
技术领域 technical field
本发明涉及一种组合式固封极柱。 The invention relates to a combined solid-sealed pole.
背景技术 Background technique
在中压配网系统中，金属封闭开关柜得到广泛应用，其中铠装移开式金属封闭开关设备占有很高的市场占有率。随着科技进步，开关产品小型化是越来越多的技术人员和客户的追求目标，首先小型化产品在经济上占据优势，它占地面积更小，使用的材料更少，降低了厂家生产成本和客户的投入；其次小型化产品具有更加精良的产品质量，小型化产品的工艺水平更高，制造精度要求也更好。铠装移开式开关柜的小型化受到手车尺寸的限制，目前大部分手车采用横向布置的结构，在产品绝缘静距的限制下，产品的外形尺寸无法控制。而纵向布置时，隔离开关的设计是产品的核心关键点。隔离开关的主要功能是：当断路器断开电路后，由于隔离开关的断开，是有电与无电部分得到明显的隔离，起辅助开关的作用。隔离开关主要用来将高压配电装置中需要停电的部分与带电部分可靠地隔离，以保证检修工作的安全。隔离开关没有灭弧装置，不能用来切断负荷电流或短路电流，通常与断路器配合使用。 In the medium-voltage distribution network system, metal-enclosed switchgear is widely used, and the armored removable metal-enclosed switchgear occupies a high market share. With the advancement of science and technology, the miniaturization of switch products is the goal pursued by more and more technicians and customers. First of all, miniaturized products have an economic advantage. Cost and customer investment; secondly, miniaturized products have better product quality, miniaturized products have a higher level of craftsmanship, and the requirements for manufacturing precision are also better. The miniaturization of the armored removable switchgear is limited by the size of the handcart. At present, most of the handcarts adopt a horizontal arrangement structure. Under the limitation of the static insulation distance of the product, the external dimension of the product cannot be controlled. In the vertical arrangement, the design of the isolating switch is the core key point of the product. The main function of the isolating switch is: when the circuit breaker disconnects the circuit, due to the disconnection of the isolating switch, the active and non-electrical parts are clearly isolated, and it acts as an auxiliary switch. The isolating switch is mainly used to reliably isolate the part that needs to be powered off from the live part in the high-voltage power distribution device to ensure the safety of maintenance work. The isolating switch has no arc extinguishing device and cannot be used to cut off the load current or short-circuit current. It is usually used in conjunction with a circuit breaker.
然而，现有断路器因采用固封极柱而缩小了体积，但是隔离开关和断路器是分开的，结构相对不够紧凑，外形尺寸大，且两者之间的机械、电气连锁很复杂。 However, the size of the existing circuit breaker is reduced due to the use of solid-sealed poles, but the isolating switch and the circuit breaker are separated, the structure is relatively not compact enough, the overall size is large, and the mechanical and electrical interlocking between the two is very complicated.
发明内容 Contents of the invention
本发明的目的是提供一种组合式固封极柱，以解决现有的隔离开关和断路器是分开设置而导致的结构不紧凑、外形尺寸大的技术问题。 The purpose of the present invention is to provide a combined solid-sealed pole to solve the technical problems of the existing isolating switch and the circuit breaker, which are not compact in structure and have large dimensions caused by separate arrangements.
为了实现以上目的，本发明一种组合式固封极柱的技术方案如下：该组合式固封极柱包括真空灭弧室、与真空灭弧室静端连接的上出线座及与真空灭弧室动端连接的下出线座，所述上出线座和/或下出线座上设有用于与隔离开关的隔离触头滑动连接的隔离支座。 In order to achieve the above objectives, the technical scheme of a combined solid-sealed pole of the present invention is as follows: the combined solid-sealed pole includes a vacuum interrupter, an upper outlet seat connected to the static end of the vacuum interrupter, and a vacuum interrupter. The lower outlet seat connected to the moving end of the chamber, the upper outlet seat and/or the lower outlet seat is provided with an isolation support for sliding connection with the isolation contact of the isolation switch.
所述隔离支座包括静导电座及隔离触头的传动轴支座，所述静导电座上设有用于安装弹簧触指的安装结构。 The isolation support includes a static conductive seat and a transmission shaft support of the isolation contact, and the static conductive seat is provided with an installation structure for installing spring contacts.
所述上出线座包括上出线座本体，上出线座本体包括与真空灭弧室的静端连接的第一连接部及连接所述第一连接部与静导电座的第一连接导体。 The upper outlet base includes an upper outlet base body, and the upper outlet base body includes a first connecting portion connected to the static end of the vacuum interrupter and a first connecting conductor connecting the first connecting portion with the static conductive base.
所述第一连接部呈竖向的柱状且其内设有竖向的连接孔，所述第一连接部的下端面为与真空灭弧室的静端连接的连接平面。 The first connecting part is in the shape of a vertical column and a vertical connecting hole is arranged therein, and the lower end surface of the first connecting part is a connecting plane connected with the static end of the vacuum interrupter.
所述静导电座呈竖向的柱状且其内设有竖向安装孔，所述安装结构为设于所述竖向安装孔内壁上的沟槽，所述传动轴支座一体设置于静导电座的下方。 The static conductive seat is in the shape of a vertical column with a vertical mounting hole inside, the mounting structure is a groove on the inner wall of the vertical mounting hole, and the transmission shaft support is integrally arranged on the static conductive seat below.
所述下出线座包括下出线座本体，下出线座本体包括与真空灭弧室的动端连接的第二连接部及连接所述第二连接部与静导电座的第二连接导体。 The lower outlet base includes a lower outlet base body, and the lower outlet base body includes a second connecting portion connected to the moving end of the vacuum interrupter and a second connecting conductor connecting the second connecting portion with the static conductive base.
所述第二连接部呈竖向的柱状且其内设有竖向的安装孔，所述安装孔内设有与真空灭弧室的动端连接的连接结构。 The second connecting portion is in the shape of a vertical column, and a vertical installation hole is provided therein, and a connection structure connected with the moving end of the vacuum interrupter is provided in the installation hole.
所述静导电座呈柱状，所述静导电座内设有竖向的、轴线与所述安装孔的轴线平行的内孔。 The static conductive seat is columnar, and a vertical inner hole with an axis parallel to the axis of the installation hole is arranged in the static conductive seat.
所述传动轴支座设置在所述静导电座的上方，所述传动轴支座具有横向的轴孔。 The transmission shaft support is arranged above the static conductive seat, and the transmission shaft support has a transverse shaft hole.
所述静导电座上设有用于安装测温传感器的安装接口。 An installation interface for installing a temperature measuring sensor is provided on the static conductive seat.
本发明的有益效果：本发明固封极柱实现开关柜主开关与隔离开关隔离支座一体化设置，使固封极柱复合了主开关及隔离开关两种功能。结构紧凑，减小了外形尺寸。 The beneficial effect of the present invention: the solid-sealed pole of the present invention realizes the integrated setting of the main switch of the switch cabinet and the isolating switch isolating support, so that the solid-sealed pole combines the two functions of the main switch and the isolating switch. Compact structure, reducing the overall size.
附图说明 Description of drawings
图1是本发明组合式固封极柱的实施例1的结构示意图； Fig. 1 is a schematic structural view of Embodiment 1 of the combined solid-sealed pole of the present invention;
图2是图1的剖视图； Fig. 2 is a sectional view of Fig. 1;
图3是图1中的固封极柱在使用时与隔离开关的隔离触头配合的示意图； Fig. 3 is a schematic diagram of the solid-sealed pole in Fig. 1 cooperating with the isolating contact of the isolating switch when in use;
图4是图1中的上出线座的结构示意图； Fig. 4 is a schematic structural view of the upper outlet seat in Fig. 1;
图5是图4的剖视图； Fig. 5 is a sectional view of Fig. 4;
图6是是图1中的下出线座的结构示意图； Fig. 6 is a schematic structural view of the lower outlet seat in Fig. 1;
图7是图6的剖视图； Fig. 7 is a sectional view of Fig. 6;
图8是本发明实施例2的结构示意图； Figure 8 is a schematic structural view of Embodiment 2 of the present invention;
图9是本发明实施例3的结构示意图。 Fig. 9 is a schematic structural diagram of Embodiment 3 of the present invention.
具体实施方式 detailed description
本发明一种组合式固封极柱的实施例1：如图1-9所示，组合式固封极柱包括绝缘筒2、真空灭弧室14、与真空灭弧室14静端连接的上出线座1及与真空灭弧室动端连接的下出线座3。真空灭弧室14、上出线座1、下出线座3通过环氧树脂材料浇注成一整体。上、下出线座为导电金属铸件。上出线座11和下出线座3上设有用于与隔离开关的隔离触头19滑动连接的隔离支座，位于上出线座上的为上隔离支座，位于下出线座上的为下隔离支座。上、下出线座分别位于绝缘筒2的左右两侧，绝缘筒2的下端设有定位嵌件8，在使用时，三相固封极柱前后间隔设置，称为纵向布置。 Embodiment 1 of a combined solid-sealed pole of the present invention: as shown in Figure 1-9, the combined solid-sealed pole includes an insulating cylinder 2, a vacuum interrupter 14, and a vacuum interrupter connected to the static end of the vacuum interrupter 14. The upper outlet seat 1 and the lower outlet seat 3 connected with the moving end of the vacuum interrupter. The vacuum interrupter 14 , the upper outlet seat 1 and the lower outlet seat 3 are integrally cast by epoxy resin material. The upper and lower outlet seats are conductive metal castings. The upper outlet seat 11 and the lower outlet seat 3 are provided with isolation supports for sliding connection with the isolating contacts 19 of the isolating switch. The upper isolation support is located on the upper outlet seat, and the lower isolation support is located on the lower outlet seat. seat. The upper and lower outlet seats are respectively located on the left and right sides of the insulating cylinder 2, and the lower end of the insulating cylinder 2 is provided with a positioning insert 8. When in use, the three-phase solid-sealed poles are arranged at intervals before and after, which is called longitudinal arrangement.
隔离支座包括静导电座及隔离触头的传动轴支座，静导电座上设有用于安装弹簧触指的安装结构。上出线座1包括上出线座本体，上出线座本体包括与真空灭弧室14的静端连接的第一连接部13及连接第一连接部13与静导电座的第一连接导体20。第一连接部呈竖向的圆柱状且其内设有竖向的连接孔21，第一连接部13的下端面镀银并作为与真空灭弧室的静端连接的连接平面。连接孔21为上大下小的阶梯孔。上出线座1通过螺栓与真空灭弧室14紧固在一起。静导电座10呈竖向的柱状且其内设有竖向安装孔，安装结构为设于竖向安装孔内壁上的沟槽22。沟槽内部平面镀银处理。在使用时，竖向安装孔内装有弹簧触指和导向套，用于与隔离开关的静触头滑动电连接。传动轴支座11一体设置于静导电座的下方。第一连接导体20呈横向延伸的圆柱状。静导电座10上设有用于安装测温传感器的安装接口9。 The isolation support includes a static conductive seat and a transmission shaft support of the isolation contact, and the static conductive seat is provided with an installation structure for installing spring contact fingers. The upper outlet base 1 includes an upper outlet base body, and the upper outlet base body includes a first connecting portion 13 connected to the static end of the vacuum interrupter 14 and a first connecting conductor 20 connecting the first connecting portion 13 and the static conductive base. The first connecting part is in the shape of a vertical cylinder and a vertical connecting hole 21 is provided therein. The lower end surface of the first connecting part 13 is plated with silver and serves as a connecting plane connected to the static end of the vacuum interrupter. The connection hole 21 is a stepped hole with a large top and a small bottom. The upper outlet seat 1 is fastened together with the vacuum interrupter 14 by bolts. The static conductive seat 10 is in the shape of a vertical column and has a vertical installation hole inside. The installation structure is a groove 22 on the inner wall of the vertical installation hole. The inner plane of the groove is silver-plated. When in use, a spring contact finger and a guide sleeve are installed in the vertical mounting hole for sliding electrical connection with the static contact of the isolating switch. The transmission shaft support 11 is integrally arranged under the static conductive seat. The first connection conductor 20 has a cylindrical shape extending laterally. The static conductive base 10 is provided with an installation interface 9 for installing a temperature sensor.
下出线座3包括下出线座本体，下出线座本体包括与真空灭弧室14的动端连接的第二连接部15及连接第二连接部与静导电座6的第二连接导体23。第二连接部15呈竖向的圆柱状且其内设有竖向的安装孔，安装孔内设有与真空灭弧室14的动端连接的连接结构24。连接结构呈沟槽状，连接结构通过导电块17实现与真空灭弧室14的动端的连接，导电块17与真空灭弧室靠紧固螺杆16固定在一起。导电块17的下方连接有绝缘拉杆18。静导电座6呈柱状，静导电座6内设有竖向的、轴线与安装孔的轴线平行的内孔。内孔壁上设有镀银的沟槽，沟槽内安装有弹簧触指和导向套。传动轴支座设置在静导电座的上方，传动轴支座具有横向的轴孔。静导电座上设有用于安装测温传感器的安装接口7。 The lower outlet base 3 includes a lower outlet base body, and the lower outlet base body includes a second connecting portion 15 connected to the moving end of the vacuum interrupter 14 and a second connecting conductor 23 connecting the second connecting portion and the static conductive base 6 . The second connecting portion 15 is in the shape of a vertical column and has a vertical installation hole therein, and a connection structure 24 connected to the moving end of the vacuum interrupter 14 is arranged in the installation hole. The connection structure is in the shape of a groove, and the connection structure realizes the connection with the moving end of the vacuum interrupter 14 through the conductive block 17 , and the conductive block 17 and the vacuum interrupter are fixed together by the fastening screw 16 . An insulating pull rod 18 is connected below the conductive block 17 . The static conductive seat 6 is columnar, and the static conductive seat 6 is provided with a vertical inner hole whose axis is parallel to the axis of the mounting hole. There are silver-plated grooves on the wall of the inner hole, and spring contacts and guide sleeves are installed in the grooves. The transmission shaft support is arranged above the static conduction seat, and the transmission shaft support has a transverse shaft hole. An installation interface 7 for installing a temperature measuring sensor is provided on the static conductive seat.
本发明组合式固封极柱的实施例2：如图8所示，与实施例1的区别在于：只有上出线座上设有隔离支座，不带隔离支座的下出线座26可以使用固定连接或电缆附件连接接口。 Embodiment 2 of the combined solid-sealed pole of the present invention: as shown in Figure 8, the difference from Embodiment 1 is that only the upper outlet seat is provided with an isolation support, and the lower outlet seat 26 without isolation support can be used Fixed connection or cable accessory connection interface.
本发明组合式固封极柱的实施例3：如图9所示，与实施例1的区别在于：只有下出线座上设有隔离支座，不带隔离支座的上出线座25可以使用固定连接或电缆附件连接接口。 Embodiment 3 of the combined solid-sealed pole of the present invention: as shown in Figure 9, the difference from Embodiment 1 is that only the lower outlet seat is provided with an isolation support, and the upper outlet seat 25 without isolation support can be used Fixed connection or cable accessory connection interface.
实施例1为灭弧室断口两端带隔离支座的应用实例，适合主开关断口两侧带上、下隔离开关的情形，可以应用在移开式开关柜等场合；实施例2、3分别为主开关带上隔离或下隔离开关的情形，适合充气柜、固体柜、环网柜等成套电器的使用要求。可以根据开关柜主接线要求灵活布置隔离开关。 Embodiment 1 is an application example with isolating supports at both ends of the arc extinguishing chamber fracture, which is suitable for the situation where there are upper and lower isolating switches on both sides of the main switch fracture, and can be applied to occasions such as removable switch cabinets; Embodiments 2 and 3 are respectively When the main switch is equipped with an upper or lower isolating switch, it is suitable for the use requirements of complete sets of electrical appliances such as inflatable cabinets, solid cabinets, and ring network cabinets. The isolating switch can be flexibly arranged according to the main wiring requirements of the switch cabinet.
在上述实施例中，待环氧树脂浇注完成后，静导电座成为隔离开关的支撑座。图2中的屏蔽罩12属于隔离开关的一个部件，它的作用是屏蔽隔离开关传动机构所带来的畸变的电场；同时隔离开关传动机构与屏蔽罩是紧配合安装，使得机构有效的定位。定位嵌件、测温传感器接口、屏蔽罩通过模具定位，与灭弧室装配体环氧浇注在一起。 In the above embodiment, after the epoxy resin is poured, the static conductive seat becomes the support seat of the disconnector. The shielding cover 12 in Fig. 2 belongs to a part of the isolating switch, and its function is to shield the distorted electric field brought by the transmission mechanism of the isolating switch; at the same time, the transmission mechanism of the isolating switch and the shielding cover are closely fitted and installed, so that the mechanism can be effectively positioned. The positioning insert, the interface of the temperature measuring sensor, and the shielding cover are positioned through the mould, and are epoxy-cast together with the assembly of the arc extinguishing chamber.
本发明的固封极柱，实现开关柜主开关与隔离开关隔离支座、传动轴座一体化浇注，使固封极柱复合了主开关及隔离开关两种功能。极柱上下进出线座垂直布置在极柱两侧并与灭弧室浇注成一个整体。上下出线座采用竖直导电结构，出线座做为隔离触头的安装支座通过滑动连接与外部其他元件（如隔离触头）相连，从而实现主开关、隔离开关及整个主回路“一”字型纵向布置。本发明提供了应用在纵向布置的手车上的固封极柱，通过应用新型的隔离开关，打破了传统的横向布置的技术局限，充分利用了产品的空间，减少了铜材用量。主开关与隔离开关部分功能集成在一起，省去了常规极柱配用的触臂，降低了成本。 The solid-sealed pole of the present invention realizes integrated casting of the main switch of the switchgear and the isolating switch isolation support and the transmission shaft seat, so that the solid-sealed pole combines the two functions of the main switch and the isolating switch. The upper and lower inlet and outlet sockets of the pole are vertically arranged on both sides of the pole and cast into a whole with the arc extinguishing chamber. The upper and lower outlet bases adopt a vertical conductive structure, and the outlet base is used as the installation support of the isolation contact to connect with other external components (such as isolation contacts) through sliding connections, so as to realize the "one" character of the main switch, isolation switch and the entire main circuit Type vertical arrangement. The invention provides the solid-sealed pole applied on the handcart arranged in the longitudinal direction, and breaks the technical limitation of the traditional horizontal arrangement through the application of a new type of isolating switch, fully utilizes the space of the product, and reduces the consumption of copper materials. Part of the functions of the main switch and the isolating switch are integrated together, which saves the contact arm used with the conventional pole and reduces the cost.
在上述实施例中，固封极柱的上下隔离支座为弹簧触指滑动连接，是温室的敏感点，支座侧面浇注有嵌件，作为传感器的安装接口。距离发热点近，测量准确，安装便利。隔离触头的传动轴支座与上下出线座浇注在一起，既简化了隔离开关的结构，又保证了传动精度，同时该支座具备屏蔽支座内部零件电场作用。 In the above embodiments, the upper and lower isolation supports of the solid-sealed poles are slidingly connected by spring fingers, which are the sensitive points of the greenhouse, and inserts are poured on the side of the support as the installation interface of the sensor. Close to the hot spot, accurate measurement and convenient installation. The transmission shaft support of the isolating contact is cast together with the upper and lower outlet seats, which not only simplifies the structure of the isolating switch, but also ensures the transmission accuracy. At the same time, the support has the function of shielding the electric field of the internal parts of the support.
在本实施例中，固封极柱在使用的时候是纵向布置的，隔离开关的静导电座的安装孔是竖向的，在其它实施中，固封极柱是传统的布置形式时，隔离开关的静导电座的安装孔也可是横向的。 In this embodiment, the solid-sealed pole is arranged vertically when in use, and the installation hole of the static conductive seat of the isolating switch is vertical. In other implementations, when the solid-sealed pole is a traditional arrangement, the isolation The mounting hole of the static conductive seat of the switch can also be transverse.
在本实施例中，弹簧触指的安装结构采用螺旋的V型沟槽，在其它实施例中，安装结构也可采用其他的槽形式，能够固定弹簧触指即可，例如平底槽，圆弧槽。在其它实施例中，也可采用表带触指实现导电滑动连接。 In this embodiment, the installation structure of the spring contact fingers adopts a spiral V-shaped groove. In other embodiments, the installation structure can also adopt other groove forms, which can fix the spring contact fingers, such as flat-bottomed grooves, circular arcs, etc. groove. In other embodiments, the contact fingers of the strap can also be used to realize the conductive sliding connection.
Claims (10)
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