WO2019062344A1 - 一种断路器手柄连接方式 - Google Patents

一种断路器手柄连接方式 Download PDF

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Publication number
WO2019062344A1
WO2019062344A1 PCT/CN2018/099645 CN2018099645W WO2019062344A1 WO 2019062344 A1 WO2019062344 A1 WO 2019062344A1 CN 2018099645 W CN2018099645 W CN 2018099645W WO 2019062344 A1 WO2019062344 A1 WO 2019062344A1
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WO
WIPO (PCT)
Prior art keywords
lever
mounting groove
circuit breaker
handle
limiting
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Application number
PCT/CN2018/099645
Other languages
English (en)
French (fr)
Inventor
李强
蒋武山
刘智操
于贻鹏
琚纪红
Original Assignee
上海良信电器股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 上海良信电器股份有限公司 filed Critical 上海良信电器股份有限公司
Priority to CA3056976A priority Critical patent/CA3056976A1/en
Priority to US16/348,196 priority patent/US10804053B2/en
Publication of WO2019062344A1 publication Critical patent/WO2019062344A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/521—Details concerning the lever handle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever

Definitions

  • the invention belongs to the technical field of circuit breakers, and in particular relates to a connection method of a circuit breaker handle.
  • the circuit breaker is divided into a high voltage circuit breaker and a low voltage circuit breaker according to its use range.
  • Low-voltage circuit breakers also known as automatic switches, are also known as "air switches”. They are also low-voltage circuit breakers. They are electrical appliances that have both manual switching and automatic voltage loss, undervoltage, overload, and short-circuit protection. It can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, and automatically cut off circuits when they are severely overloaded or short-circuited or under-voltage faults. Their functions are equivalent to fuse switches and A combination of thermal relays, etc., and generally no need to change parts after breaking the fault current has been widely used.
  • the circuit breaker usually uses the handle and the lever as the control part of the operating device to realize the control of turning on and off the circuit breaker.
  • the connection between the handle and the lever is usually at least one circular or rectangular shape using a lever.
  • the utility model comprises a large cover, a flip cover, a handle and a lever, wherein the lever has an inverted U shape, and the bottom portion thereof extends outwardly; the handle has a plate-shaped arc shape, and the arc top extends radially outward from the handle portion, and the inner side of the arc is provided At least one L-shaped or U-shaped guide rail extending axially along the arc; the projections on the lever are relatively slidable along the guide rail of the handle.
  • the handle moves little relative to the lever in the tangential direction of the arc of the handle, and the handle relative lever can slide along the axis of the protrusion toward the middle of the large cover, so that the handle of the handle is located in the middle of the large cover in the direction, the handle
  • the arc surface is located between the insulating cover of the large cover and the shutter, and the lever, the handle and the large cover are integrated to facilitate the fastening of the base and the large cover.
  • the operation hole of the flip cover is located in the middle position of the flip cover. After the flip cover is connected with the large cover, the handle of the handle is located in the middle position of the buckle cover of the entire molded case circuit breaker, which is more convenient in operation and visually more beautiful.
  • the handle when the handle is vertically installed, when the handle is driven to open and close the lever, the handle needs to be limited by the arc inside the middle cover of the circuit breaker, and the first will increase the handle operation force. , affecting the rate of movement of the mechanism, the second in the process of closing and closing will cause the handle and the middle cover to rub and generate a large amount of dust to affect the moving parts of the mechanism; the third is the inconvenience of production and debugging, if there is no middle cover, the handle can not be reliable with the lever The connection is easy to fall off from the lever, and even can not be opened and closed. In the production debugging process, other tools are needed to realize the product opening and closing action.
  • the limit of the handle When the handle is installed from the side, the limit of the handle is insufficient, and one side is fully open. It is easy to slide out from the limit groove or generate friction during the use and the side wall of the middle cover, which also causes a lot of dust, etc. , affecting the performance of the product.
  • the invention is directed to the technical defects existing in the connection manner of the above-mentioned existing circuit breaker handle and the lever, and provides a circuit breaker handle connection structure, which changes the traditional lever and the handle directly to the lever and the handle to rotate.
  • the mounting method allows the handle to be reliably connected to the lever and limited without increasing the cost of the handle and lever.
  • a circuit breaker handle connection method designed by the present invention comprises a handle and a lever, and the handle and the lever are assembled together, wherein the bottom of the handle portion of the handle is provided with a mounting groove.
  • the bottom of the lever is rotatably mounted in the mounting groove, and the lever is restrained by the limiting boss to be installed in the mounting groove when the lever is rotated into the fixed position in the mounting groove.
  • the limiting boss and the limit buckle restrict the degree of freedom to be fixedly mounted in the mounting groove.
  • the bottom of the lever protrudes from the positioning boss, and when the lever is rotated into the fixed position in the mounting groove, the positioning boss is restrained by the limiting boss to be installed in the mounting groove.
  • the limiting boss includes a limiting lateral projection, and the limiting lateral projection extends from the outer end surface of the slot wall of the mounting slot into the slot, and the limiting transverse boss extends toward the mounting a bottom of the slot protrudes from the limit vertical boss, the limit buckle is disposed on an outer end surface of the mounting slot wall, and one end of the limiting clip is disposed at an outer end surface of the slot wall of the mounting slot The other end is capable of deforming, and the end of the limit buckle that is deformed against the side wall of the lever when the lever is in the fixed position is unable to rotate.
  • the two limiting bosses are symmetrically arranged on the outer end surface of the groove wall of the mounting groove.
  • the limit buckles are two, symmetrically arranged on the outer end surface of the groove wall of the mounting groove.
  • the positioning bosses are two, symmetrically arranged at both side ends of the bottom of the lever.
  • the lever is U-shaped.
  • a gap is formed between one end of the limiting buckle and the outer end surface of the groove wall of the mounting groove.
  • the invention provides a circuit breaker handle connection mode, and the lever and the handle adopt a rotary installation manner, so that the handle can be reliably connected with the lever and limited without increasing the cost of the handle and the lever.
  • the utility model can operate normally without relying on the middle cover to realize the handle limit, and the production debugging of the circuit breaker is more convenient, and the use process is safer and more reliable.
  • the limit is more reliable after the handle is assembled, and no structural space is reserved for the installation of the handle.
  • FIG. 1 is a schematic structural view of an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a handle in an embodiment of the present invention.
  • Figure 3 is a schematic view showing the structure of a lever in the embodiment of the present invention.
  • Figure 4 is a schematic view showing the structure of the lever in the initial state of the handle in the embodiment of the present invention.
  • Figure 5 is a schematic view showing the structure of the lever in the fixed position in the handle according to the embodiment of the present invention.
  • a circuit breaker handle connection method includes a handle 1 and a lever 2.
  • the lever 2 is U-shaped.
  • the handle 1 and the lever 2 are assembled together, wherein the bottom of the handle portion 101 of the handle 1 is provided with a mounting groove 102, and the bottom 201 of the lever 2 is mounted in the mounting groove 102 to be rotatable.
  • the bottom of the lever 2 protrudes from the positioning boss 202.
  • the positioning boss 202 is restrained by the limiting boss 103 to be installed in the mounting slot 102.
  • the limit buckle 104 can be further increased to further restrict the degree of freedom to be fixedly mounted in the mounting groove 102.
  • the number of the limiting bosses 103 is two, and is symmetrically arranged on the outer end surface of the groove wall of the mounting groove 102.
  • the limit buckles 104 are two, and are symmetrically arranged on the outer end surface of the groove wall of the mounting groove 102.
  • the limiting boss 103 includes a limiting lateral projection 103a, and the limiting lateral projection 103a protrudes from the outer end surface of the groove of the mounting groove 102 into the slot.
  • the limiting lateral boss 103a protrudes from the bottom of the mounting slot 102 to the limiting vertical boss 103b.
  • the limiting buckle 104 is disposed on an outer end surface of the slot wall of the mounting slot 102, and one end of the limiting buckle 104 is disposed at an outer end surface of the slot wall of the mounting slot 102.
  • the side wall 203 of the lever 2 makes it impossible to rotate.
  • the lever 2 is first inserted into the mounting groove 102, and then the lever 2 is rotated. During the rotation of the lever 2, the lever 2 presses down the limit buckle 104 so as not to resist the lever 2.
  • the positioning boss 202 of the lever 2 is rotated to be engaged by the limiting lateral projection 103a and the limiting vertical projection 103b, the degree of freedom of the reverse rotation of the lever 2 will be The positional buckles 104 that are restored to the original position are restrained, and the position of the lever 2 is a fixed position.
  • the positioning bosses 202 are two, symmetrically arranged on the lever. 2 The two sides of the bottom can better ensure the reliable installation between the lever and the handle.

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  • Breakers (AREA)

Abstract

一种断路器手柄连接结构，包括手柄(1)和杠杆(2)，手柄(1)和杠杆(2)装在一起，手柄(1)的柄盘部(101)的底部设有安装槽(102)，杠杆(2)的底部(201)装在安装槽(102)内能够转动，杠杆(2)在安装槽(102)内转动到固定位置时被限位凸台(103)限制自由度。

Description

一种断路器手柄连接方式 技术领域
本发明属于断路器技术领域，具体讲就是涉及一种断路器手柄连接方式。
背景技术
断路器按其使用范围分为高压断路器和低压断路器。低压断路器又称自动开关，俗称"空气开关"也是指低压断路器，它是一种既有手动开关作用，又能自动进行失压、欠压、过载、和短路保护的电器。它可用来分配电能，不频繁地启动异步电动机，对电源线路及电动机等实行保护，当它们发生严重的过载或者短路及欠压等故障时能自动切断电路，其功能相当于熔断器式开关与过欠热继电器等的组合，而且在分断故障电流后一般不需要变更零部件，已获得了广泛的应用。
断路器通常利用手柄与杠杆作为操作装置的控制部分来实现对断路器接通和断开的控制，在现有断路器中，手柄与杠杆的连接通常是采用杠杆的至少一个圆形或矩形等其他形状的孔和手柄上对应位置的圆形或矩形等其它形状的拉伸凸台来配合竖直安装完成；或者如中国专利ZL201110005746.8公开的一种手柄居中的塑壳断路器扣盖，包括大盖、翻盖、手柄和杠杆，杠杆呈倒U形，其底部向外延伸凸起；手柄呈片状弧形，其弧顶沿径向向外延伸出柄部，其圆弧内侧设有至少一个沿圆弧轴向延伸的L形或U形导轨；杠杆上的凸起可沿手柄的导轨相对滑动。组装后，手柄相对于杠杆在手柄的圆弧切线方向上活动很小，手柄相对杠杆可沿凸起的轴线向大盖的中间滑动，使手柄的柄部在该方向位于大盖的中间，手柄的圆弧面位于大盖的绝缘隔板和遮板之间，杠杆、手柄、大盖连接成为一体，易于基座和大盖的紧固。翻盖的操作孔位于翻盖的中间位置，翻盖与大盖连接后，手柄的柄部位于整个塑壳断路器扣盖的中间位置，在操作上更加方便，视觉上更加美观。但是现有的这些手柄和杠杆的安装方式中当手 柄竖直安装时，手柄带动杠杆合分闸时，手柄需要由断路器的中盖内部的圆弧限位，第一会增大手柄操作力，影响机构运动速率，第二在合分闸过程中会造成手柄和中盖摩擦并产生大量的粉尘影响机构运动部件；第三是生产调试不方便，如果没有中盖，手柄不能可靠的与杠杆连接，容易从杠杆上脱落，甚至无法合分闸，在生产调试过程中都需要借助其它工具来实现产品的合分闸动作。而当手柄从侧面安装时，手柄的限位不足，一侧为全开口状态，很容易从限位槽中滑出或在使用过程中和中盖侧壁产生摩擦，同样会造成很多的粉尘等，影响产品的使用性能。
发明内容
本发明就是针对上述现有的断路器手柄与杠杆的连接方式中存在的技术缺陷，提供一种断路器手柄连接结构，将传统的杠杆和手柄直接的安装方式改变成将杠杆和手柄采用旋转的安装方式，在不增加手柄和杠杆成本的条件下使手柄能够可靠的与杠杆连接并限位。
技术方案
为了实现上述技术目的，本发明设计的一种断路器手柄连接方式，包括手柄和杠杆，所述手柄和杠杆装在一起，其特征在于：所述手柄的柄盘部的底部设有安装槽，所述杠杆的底部装在所述安装槽内能够转动，所述杠杆在所述安装槽内转动到固定位置时被限位凸台限制自由度使其装在所述安装槽内。
进一步，所述杠杆在所述安装槽内转动到固定位置时被限位凸台和限位卡扣限制自由度使其固定装在所述安装槽内。
进一步，所述杠杆底部伸出定位凸台，所述杠杆在所述安装槽内转动到固定位置时，定位凸台被限位凸台限制自由度使其装在所述安装槽内。
进一步，所述限位凸台包括限位横凸台，所述限位横凸台从所述安装槽的槽壁外侧端面上向槽内伸出，所述限位横凸台向所述安装槽的底部伸出限位竖凸台，所述限位卡扣设置在所述安装槽槽壁的外侧端面上，所述限位卡扣一端设置在所述安装槽的槽壁的外侧的端面上，另一端能够产生形变，所述限位卡扣 产生形变的一端在所述杠杆位于固定位置时抵住所述杠杆的侧壁使其无法回转。
优选地，所述限位凸台为2个，对称布置在所述安装槽的槽壁外侧端面上。
优选地，所述限位卡扣为2个，对称布置在所述安装槽的槽壁外侧端面上。
优选地，所述定位凸台为2个，对称布置在所述杠杆底部的两侧端。
优选地，所述杠杆为U形。
进一步，所述限位卡扣产生形变的一端与所述安装槽的槽壁的外侧的端面之间有缺口。
有益效果
本发明提供的一种断路器手柄连接方式，杠杆和手柄采用了旋转安装方式，在不增加手柄和杠杆成本的同时，使手柄能够可靠的与杠杆连接并限位。不用依靠中盖来实现手柄限位就能正常动作，使断路器的生产调试更方便，使用过程中更安全可靠。相比于横向安装方式，手柄装配好后限位更可靠，不用为手柄的安装预留结构空间。
附图说明
附图1是本发明实施例的结构示意图。
附图2是本发明实施例中手柄的结构示意图。
附图3是本发明实施例中杠杆的结构示意图。
附图4是本发明实施例中杠杆装在手柄中起始状态的结构示意图。
附图5是本发明实施例中杠杆装在手柄中位于固定位置的结构示意图。
具体实施方式
下面结合附图和实施例，对本发明做进一步说明。
如附图1所示，一种断路器手柄连接方式，包括手柄1和杠杆2，本实施例中，所述杠杆2为U形。所述手柄1和杠杆2装在一起，其中，所述手柄1的柄盘部101的底部设有安装槽102，所述杠杆2的底部201装在所述安装槽102内能够转动，所述杠杆2底部伸出定位凸台202，所述杠杆2在所述安装槽102 内转动到固定位置时，定位凸台202被限位凸台103限制自由度使其装在所述安装槽102内。进一步地，还可以增加限位卡扣104进一步限制自由度使其固定装在所述安装槽102内。本实施例中，所述限位凸台103为2个，对称布置在所述安装槽102的槽壁外侧端面上。所述限位卡扣104为2个，对称布置在所述安装槽102的槽壁外侧端面上。
如附图2所示，所述限位凸台103包括限位横凸台103a，所述限位横凸台103a从所述安装槽102的槽壁外侧端面上向槽内伸出，所述限位横凸台103a向所述安装槽102的底部伸出限位竖凸台103b，所述杠杆2的底部201在所述安装槽102内转动到固定位置时，所述定位凸台202插入限位横凸台103a、限位竖凸台103b和安装槽102底面形成的空间中，使杠杆2固定装在安装槽102内。
如附图2所示，所述限位卡扣104设置在所述安装槽102槽壁的外侧端面上，所述限位卡扣104一端设置在所述安装槽102的槽壁的外侧的端面上，另一端与所述安装槽102的槽壁的外侧的端面之间有缺口105从而能够产生形变，所述限位卡扣104产生形变的一端在所述杠杆2位于固定位置时抵住所述杠杆2的侧壁203使其无法回转。
如附图4所示，首先将杠杆2插入安装槽102中，接着转动杠杆2，在杠杆2转动过程中，所述杠杆2会向下压住限位卡扣104使其不会抵挡杠杆2的转动，如附图5所示，当杠杆2的定位凸台202转动到被限位横凸台103a和限位竖凸台103b抵住时，所述杠杆2反向回转的自由度就会被恢复回弹到原始位置的限位卡扣104限制住，所述杠杆2此时所处位置为固定位置，本实施例中，所述定位凸台202为2个，对称布置在所述杠杆2底部的两侧端，能够更好的保证杠杆和手柄之间固定可靠安装。
本实施例所附图式所绘示的结构、比例、大小等，均仅用以配合说明书所揭示的内容，以供熟悉此技术的人士了解与阅读，并非用以限定本发明可实施的限定条件，故不具技术上的实质意义，任何结构的修饰、比例关系的改变或大小的调整，在不影响本发明所能产生的功效及所能达成的目的下，均应仍落在 本发明所揭示的技术内容得能涵盖的范围内。同时，本说明书中所引用的如“上”、“下”、“左”、“右”、“中间”、“顺时针”、“逆时针”等的用语，亦仅为便于叙述的明了，而非用以限定本发明可实施的范围，其相对关系的改变或调整，在无实质变更技术内容下，当亦视为本发明可实施的范畴。

Claims (10)

  1. 一种断路器手柄连接结构，包括手柄(1)和杠杆(2)，其特征在于：所述手柄(1)的柄盘部(101)的底部设有安装槽(102)和限位凸台(103)，所述杠杆(2)包括与安装槽(102)配合的底部(201)，所述底部(201)可在所述安装槽(102)中转动，所述杠杆(2)在所述安装槽(102)内转动到固定位置时被限位凸台(103)限制自由度使其装在所述安装槽(102)内。
  2. 如权利要求1所述的一种断路器手柄连接方式，其特征在于：所述手柄(1)的柄盘部(101)的底部还设有限位卡扣(104)，所述杠杆(2)在所述安装槽(102)内转动到固定位置时被限位凸台(103)和限位卡扣(104)限制自由度使其固定装在所述安装槽(102)内。
  3. 如权利要求2所述的一种断路器手柄连接方式，其特征在于：所述杠杆(2)底部伸出定位凸台(202)，所述杠杆(2)在所述安装槽(102)内转动到固定位置时，定位凸台(202)被限位凸台(103)限制自由度使其装在所述安装槽(102)内。
  4. 如权利要求2所述的一种断路器手柄连接方式，其特征在于：所述限位凸台(103)包括限位横凸台(103a)和限位竖凸台(103b)，所述限位横凸台(103a)从所述安装槽(102)的槽壁外侧端面上向槽内伸出，所述限位横凸台(103a)向所述安装槽(102)的底部伸出限位竖凸台(103b)。
  5. 如权利要求2所述的一种断路器手柄连接方式，其特征在于，所述限位卡扣(104)设置在所述安装槽(102)槽壁的外侧端面上，所述限位卡扣(104)一端设置在所述安装槽(102)的槽壁的外侧的端面上，另一端能够产生形变，所述限位卡扣(104)产生形变的一端在所述杠杆(2)位于固定位置时抵住所述杠杆(2)的侧壁(203)。
  6. 如权利要求1所述的一种断路器手柄连接方式，其特征在于：所述限位凸台(103)为2个，对称布置在所述安装槽(102)的槽壁外侧端面上。
  7. 如权利要求2所述的一种断路器手柄连接方式，其特征在于：所述限位卡扣 (104)为2个，对称布置在所述安装槽(102)的槽壁外侧端面上。
  8. 如权利要求3所述的一种断路器手柄连接方式，其特征在于：所述定位凸台(202)为2个，对称布置在所述杠杆(2)底部的两侧端。
  9. 如权利要求1所述的一种断路器手柄连接方式，其特征在于：所述杠杆(2)为U形。
  10. 如权利要求5所述的一种断路器手柄连接方式，其特征在于：所述限位卡扣(104)产生形变的一端与所述安装槽(102)的槽壁的外侧的端面之间有缺口(105)。
PCT/CN2018/099645 2017-09-27 2018-08-09 一种断路器手柄连接方式 WO2019062344A1 (zh)

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