TW201419353A

TW201419353A - Charging assembly with over rotation control and electrical switching apparatus employing same

Info

Publication number: TW201419353A
Application number: TW101141109A
Authority: TW
Inventors: Andrew Lawrence Gottschalk; Robert Michael Slepian
Original assignee: Eaton Corp
Priority date: 2012-11-06
Filing date: 2012-11-06
Publication date: 2014-05-16
Also published as: TWI536422B

Abstract

A charging assembly (200) is provided for an electrical switching apparatus, such as a circuit breaker (102). The circuit breaker (102) includes a housing (104), separable contacts (106), and an operating mechanism (108) for opening and closing the separable contacts (106). The charging assembly (200) includes a stored energy mechanism, such as a closing spring (204), which is movable between charged and discharged positions. A cast member (218) is coupled to the closing spring (204) and moves therewith. The cast member (218) includes a projection (220). A cam shaft (208) is pivotably coupled to the housing (104), and includes a number of cams (210, 212). A catchment (214), which is also pivotably coupled to the housing (104), includes an impact surface (224) and a protrusion (226). The impact surface (224) cooperates with a corresponding one of the cams (212) to resist over rotation of the cam shaft (208). The protrusion (226) of the catchment (214) cooperates with the projection (220) of the cast member (218) to maintain the desired relationship between the catchment (214) and the cam (212).

Description

具有過旋轉控制的加載組件以及使用此加載組件的電氣開關設備 Loading component with over-rotation control and electrical switching device using the same

所揭示概念大體上係關於電氣開關設備，且更特定而言，係關於用於電氣開關設備之加載組件。所揭示概念亦係關於諸如斷路器之電氣開關設備。 The disclosed concepts relate generally to electrical switching devices and, more particularly, to loading assemblies for electrical switching devices. The disclosed concepts are also related to electrical switching devices such as circuit breakers.

諸如斷路器之電氣開關設備為電氣系統提供保護以免處於電氣故障狀況，例如電流過載、短路、異常電壓及其他故障狀況。通常，斷路器包含操作機構，該操作機構回應於如由例如跳脫單元偵測到之此類故障狀況而斷開電氣觸點組件來中斷流過電氣系統之導體之電流。電氣觸點組件包含固定電氣觸點及可與固定電氣觸點分離之對應可移動電氣觸點。 Electrical switching devices, such as circuit breakers, provide protection to electrical systems from electrical fault conditions such as current overloads, short circuits, abnormal voltages, and other fault conditions. Typically, the circuit breaker includes an operating mechanism that interrupts the flow of electrical current through the electrical system by interrupting the electrical contact assembly in response to such a fault condition as detected by, for example, the trip unit. The electrical contact assembly includes fixed electrical contacts and corresponding movable electrical contacts that are separable from the stationary electrical contacts.

除了其他構件以外，一些低壓及中壓斷路器之操作機構例如通常還包含極軸、跳脫致動器組件、閉合組件以及斷開組件。跳脫致動器組件回應於跳脫單元且致動操作機構。閉合組件及斷開組件可能具有一些共用元件，該等共用元件經構造以使可移動電氣觸點在第一斷開位置(其中可移動電氣觸點與固定電氣觸點分離)與第二閉合位置(其中可移動電氣觸點與固定電氣觸點電氣連接)之間移動。具體而言，可移動電氣觸點耦接至極軸。閉合組件及斷開組件二者之元件(該等元件亦以可樞轉方式耦接至極軸)繞極軸樞轉，以便實現電氣觸點的閉合及斷開。包含複數個儲能機構之加載組件常用來促進閉合組件之操作。 In addition to other components, some of the operating mechanisms of low and medium voltage circuit breakers, for example, typically also include a pole shaft, a trip actuator assembly, a closure assembly, and a disconnect assembly. The trip actuator assembly is responsive to the trip unit and actuates the operating mechanism. The closure assembly and the disconnect assembly may have a number of common components that are configured to move the movable electrical contact in a first open position (where the movable electrical contact is separated from the fixed electrical contact) and a second closed position Move between the movable electrical contacts and the fixed electrical contacts. In particular, the movable electrical contact is coupled to the pole shaft. The components of both the closure assembly and the disconnect assembly (the members are also pivotally coupled to the pole shaft) pivot about the pole axis to effect closure and disconnection of the electrical contacts. Load assemblies that include a plurality of energy storage mechanisms are commonly used to facilitate operation of the closure assembly.

例如，如圖1A及圖1B所示，一些斷路器2具有直接驅動儲能機構，諸如但不限於複數個閉合彈簧4(在圖1A中以簡化形式部分地示出一個閉合彈簧4)。此類斷路器2之加載組件6通常包含具有複數個凸輪10、12及掣子(catchment)14之凸輪軸8。圖1A及圖1B之實例中的掣子14以可樞轉方式耦接至斷路器2之側板16。在此類裝置中，包含上述閉合彈簧4及由於彈簧4而偏置之彈簧鑄件18的彈簧組件由於凸輪軸8之作用而被加載，且被釋放以使得經卸載之彈簧4直接驅動閉合組件之主肘節連桿(未示出)。當彈簧4卸載時，已被釋放之掣子凸輪12繼續在加載方向上(例如逆時針方向，自圖1A之視角係在箭頭20方向上)旋轉。若該凸輪旋轉得足夠遠，則其可妨礙彈簧4之卸載且可阻止斷路器2完全閉合。此不合意之狀況一般稱作凸輪軸過旋轉。儘管掣子14一般經構造而與凸輪12配合以阻擋凸輪軸8之此過旋轉，但可能的是，尤其在長期使用之後，掣子14之衝擊表面22及/或掣子凸輪12之對應掣子表面24可受到磨損或損壞(參見，例如圖1B中之受損或變形表面22′、24′)，從而導致掣子效果欠佳。 For example, as shown in Figures 1A and 1B, some circuit breakers 2 have direct drive energy storage mechanisms such as, but not limited to, a plurality of closure springs 4 (a closure spring 4 is shown partially in simplified form in Figure 1A). The loading assembly 6 of such a circuit breaker 2 typically includes a camshaft 8 having a plurality of cams 10, 12 and a catchment 14. The catch 14 of the example of FIGS. 1A and 1B is pivotally coupled to the side panel 16 of the circuit breaker 2. In such a device, the spring assembly comprising the above-described closing spring 4 and the spring casting 18 biased by the spring 4 is loaded by the action of the camshaft 8 and is released such that the unloaded spring 4 directly drives the closure assembly. Main toggle link (not shown). When the spring 4 is unloaded, the released dice cam 12 continues to rotate in the loading direction (e.g., counterclockwise, in the direction of arrow 20 from the perspective of Figure 1A). If the cam is rotated far enough, it can interfere with the unloading of the spring 4 and can prevent the circuit breaker 2 from fully closing. This undesired condition is generally referred to as camshaft over-rotation. Although the latch 14 is generally configured to cooperate with the cam 12 to block this over-rotation of the camshaft 8, it is possible that the impact surface 22 of the latch 14 and/or the corresponding force of the latch cam 12, especially after prolonged use. Sub-surface 24 may be subject to wear or damage (see, for example, damaged or deformed surfaces 22', 24' in Figure IB), resulting in poor tweezers.

因此，加載組件及使用加載組件之斷路器(諸如斷路器)之電氣開關設備有待改良。 Therefore, the electrical switching device for loading components and circuit breakers (such as circuit breakers) using the loading components needs to be improved.

所揭示概念的實施例滿足此等需要及其他需要，該等實施例係針對用於諸如斷路器之電氣開關設備之加載組件。除了其他益處以外，該加載組件包含掣子，該掣子與閉合彈簧鑄件配合以控制凸輪軸之移動(例如，阻擋凸輪軸之過旋轉)。 Embodiments of the disclosed concepts address these needs and other needs, which are directed to load assemblies for electrical switching devices such as circuit breakers. Among other benefits, the loading component contains a dice, the dice and The closing spring casting cooperates to control the movement of the camshaft (eg, to block over rotation of the camshaft).

作為所揭示概念之一觀點，提供一種用於電氣開關設備之加載組件。電氣開關設備包含：外殼；由該外殼封入之可分離觸點；及用於斷開及閉合該等分離觸點之操作機構。加載組件包括：儲能機構，其可在經加載位置與經卸載位置之間移動；鑄造構件，其耦接至該儲能機構且可隨該儲能機構一起移動，該鑄造構件包含突起；凸輪軸，其經構造而以可樞轉方式耦接至外殼，該凸輪軸包含複數個凸輪；及掣子，其經構造而以可樞轉方式耦接至外殼，掣子包括衝擊表面及突出部分。掣子之衝擊表面與凸輪中之一對應凸輪配合以阻擋凸輪軸之過旋轉。掣子之突出部分與鑄造構件之凸起配合以維持掣子與凸輪中之對應凸輪之間的所需關係。 As one aspect of the disclosed concept, a load assembly for an electrical switching apparatus is provided. The electrical switching apparatus includes: a housing; a separable contact enclosed by the housing; and an operating mechanism for opening and closing the separate contacts. The loading assembly includes an energy storage mechanism movable between a loaded position and an unloaded position, a cast member coupled to the energy storage mechanism and movable with the energy storage mechanism, the cast member including a protrusion, a cam a shaft that is configured to be pivotally coupled to the outer casing, the cam shaft including a plurality of cams; and a detent configured to be pivotally coupled to the outer casing, the detent including the impact surface and the protruding portion . The impact surface of the latch cooperates with a corresponding cam of the cam to block over rotation of the camshaft. The projection of the catch cooperates with the projection of the cast member to maintain the desired relationship between the catch and the corresponding cam in the cam.

掣子可能進一步包括樞軸構件、第一部分、第二部分及第三部分。樞軸構件可能經構造以將第一部分以可樞轉方式耦接至電氣開關設備之外殼；第二部分可能與凸輪中之對應凸輪配合；且第三部分可能與鑄造構件之凸起配合。衝擊表面可能安置於掣子之第二部分上，且突出部分可能安置於掣子之第三部分上，其中突出部分自靠近衝擊表面之掣子向外延伸。掣子可能為單件構件，其中突出部分為自單件構件之第三部分向外延伸之大體上為矩形的部分。突出部分可能具有外邊緣，其中當掣子之衝擊表面嚙合凸輪中之對應凸輪時，突出部分之外邊緣與鑄造構件之凸起配合。 The forceps may further include a pivot member, a first portion, a second portion, and a third portion. The pivot member may be configured to pivotally couple the first portion to the outer casing of the electrical switching apparatus; the second portion may mate with a corresponding one of the cams; and the third portion may mate with the projection of the cast member. The impact surface may be placed on the second portion of the latch and the projection may be placed on the third portion of the latch, with the projection extending outwardly from the latch adjacent the impact surface. The tweezers may be a one-piece member, wherein the protruding portion is a generally rectangular portion that extends outwardly from a third portion of the one-piece member. The protruding portion may have an outer edge, wherein when the impact surface of the latch engages a corresponding cam in the cam, the outer edge of the protruding portion and the cast member Raised fit.

鑄造構件可能為單件彈簧鑄件，且凸起可能自單件彈簧鑄件橫向向外凸起且包含保持邊緣。單件彈簧鑄件之保持邊緣可能保持掣子之向外邊緣，進而阻止掣子之衝擊表面釋放凸輪中之對應凸輪。 The cast member may be a one-piece spring casting, and the protrusion may protrude laterally outward from the single piece spring casting and include a retaining edge. The retaining edge of the one-piece spring casting may maintain the outer edge of the tweezer, thereby preventing the impact surface of the tweezer from releasing the corresponding cam in the cam.

作為所揭示概念之另一觀點，本發明揭示一種使用上述加載組件之電氣開關設備。 As another aspect of the disclosed concept, the present invention discloses an electrical switching apparatus using the above described loading assembly.

本文所使用之方向詞，諸如順時針方向、逆時針方向、向左、向右、向上、向下及其衍生詞係關於圖式中所示出之元件的定向且不限制申請專利範圍，除非在申請專利範圍中明確敘述。。 The directional words used herein, such as clockwise, counterclockwise, leftward, rightward, upward, downward, and derivatives thereof, are oriented with respect to the elements shown in the drawings and are not intended to limit the scope of the application unless It is clearly stated in the scope of patent application. .

如本文所使用，陳述兩個或兩個以上部件耦接在一起應意謂該等部件或者直接接合在一起或者經由一或多個中間部件接合。 As used herein, the statement that two or more components are coupled together shall mean that the components are either directly joined together or joined through one or more intermediate components.

如本文所使用，術語「數目」應意謂1或大於1之整數(亦即，複數個)。 As used herein, the term "number" shall mean 1 or an integer greater than one (ie, plural).

圖2至圖7示出用於電氣開關設備(諸如但不限於斷路器102)之加載組件200。斷路器102包含：外殼104；由該外殼104封入之可分離觸點106(圖2中以簡化形式示出)；及用於斷開及閉合該等分離觸點106(圖2)之操作機構108(圖2中以簡化形式示出)。 2 through 7 illustrate a loading assembly 200 for an electrical switching apparatus, such as, but not limited to, a circuit breaker 102. The circuit breaker 102 includes: a housing 104; a separable contact 106 enclosed by the housing 104 (shown in simplified form in FIG. 2); and an operating mechanism for opening and closing the separate contacts 106 (FIG. 2) 108 (shown in simplified form in Figure 2).

如圖2中最佳示出，加載組件200較佳地包含儲能機構，諸如且不限於閉合彈簧204(圖2中部分示出)，該儲能機構可在經加載位置(圖5)與經卸載位置(圖2、圖4及圖7)之間移動。鑄造構件218耦接至閉合彈簧204且可隨該彈簧一起移動(例如，不限於自圖2之視角在箭頭300方向上向左及向右)。鑄造構件218包含凸起220。凸輪軸208以可樞轉方式耦接至斷路器外殼104，且包含複數個凸輪210、212(實例中示出且本文描述兩個)。亦以可樞轉方式耦接至外殼104之掣子214包含衝擊表面224及突出部分226。如以下將更詳細地描述，掣子214之衝擊表面224與凸輪212中之一對應凸輪配合，且詳言之，與凸輪212之掣子表面222配合，以阻擋凸輪軸208過旋轉。另外，根據所揭示概念，掣子214之上述突出部分226與鑄造構件218之凸起220配合以維持掣子214與凸輪212之間的所需關係。 As best shown in FIG. 2, the loading assembly 200 preferably includes an energy storage mechanism such as, but not limited to, a closure spring 204 (shown in part in FIG. 2) that stores The mechanism can be moved between the loaded position (Fig. 5) and the unloaded position (Fig. 2, Fig. 4 and Fig. 7). The cast member 218 is coupled to the closure spring 204 and is movable with the spring (eg, not limited to the left and right directions in the direction of arrow 300 from the perspective of FIG. 2). Cast member 218 includes protrusions 220. Camshaft 208 is pivotally coupled to circuit breaker housing 104 and includes a plurality of cams 210, 212 (shown in the examples and described herein). The catch 214, also pivotally coupled to the outer casing 104, includes an impact surface 224 and a protruding portion 226. As will be described in more detail below, the impact surface 224 of the detent 214 mates with one of the cams 212 and, in particular, cooperates with the detent surface 222 of the cam 212 to block over rotation of the camshaft 208. Additionally, in accordance with the disclosed concepts, the aforementioned projections 226 of the detents 214 cooperate with the projections 220 of the cast member 218 to maintain the desired relationship between the detents 214 and the cams 212.

因此，將瞭解的是，除了其他益處以外，凸起220及突出部分226為所揭示概念的特徵，用來藉由以某種方式將掣子214與彈簧鑄件218聯鎖來增強掣子214之操作，該方式阻止了例如否則可能發生於凸輪212之掣子表面222與掣子214之衝擊表面224之間的擦邊碰撞。以此方式，所揭示加載組件200提供備用機制來阻擋凸輪軸208之過旋轉及與該過旋轉相關之損壞。例如且不限於諸如斷路器振動的問題可導致先前技術之掣子(參見例如且不限於圖1A及1B之掣子14)移動至允許凸輪軸過旋轉之位置(參見例如圖1B)。另外，有可能在壽命後期(亦即在長期使用之後)，掣子碰撞特徵(例如但不限於，參見圖1A之掣子14的表面24)及/或相配合之凸輪軸特徵(參見，例如，圖1A之凸輪軸表面22)可以某種方式受損(參見，例如圖1B之變形表面22′、24′)，該方式允許會導致凸輪軸過旋轉的擦邊碰撞或衝擊。所揭示概念改良掣子214之操作，進而解決且阻止此等可能問題。 Thus, it will be appreciated that, among other benefits, the projections 220 and projections 226 are features of the disclosed concepts for enhancing the forceps 214 by interlocking the latch 214 with the spring casting 218 in some manner. Operation, which prevents, for example, an edge collision between the latch surface 222 of the cam 212 and the impact surface 224 of the latch 214 may otherwise occur. In this manner, the disclosed loading assembly 200 provides an alternate mechanism to block over-rotation of the camshaft 208 and damage associated with the over-rotation. For example and without limitation to problems such as circuit breaker vibrations, prior art tweezers (see, for example and without limitation, the dice 14 of Figures 1A and 1 B) can be moved to a position that allows the camshaft to over-rotate (see, for example, Figure IB). In addition, it is possible that after the end of life (that is, after long-term use), the scorpion collision characteristics (such as, but not limited to, see Figure 1A) The surface 24) of the sub- 14 and/or the mating camshaft feature (see, for example, the camshaft surface 22 of Figure 1A) may be damaged in some manner (see, for example, the deformed surface 22', 24' of Figure IB), This approach allows edge collisions or impacts that can cause the camshaft to over-rotate. The disclosed concept improves the operation of the dice 214, thereby solving and preventing such possible problems.

更具體而言，示出之非限制性實例中之掣子214較佳包含樞軸構件228、第一部分230、第二部分232及第三部分234。樞軸構件228將第一部分230以可樞轉方式耦接至斷路器外殼104，且詳言之，耦接至該外殼之側板110(在圖2中所畫虛線中部分示出)，如圖2中最佳示出。第二部分232與凸輪212配合，且第三部分234與鑄造構件218之凸起220配合。在本文示出且描述之實例中，衝擊表面224安置於掣子214之第二部分232上，且突出部分226安置於掣子214之第三部分234上。因此，如所示，突出部分226自靠近衝擊表面224之掣子向外延伸。繼續參看圖2，且亦參看圖4至圖7，掣子214較佳為單件構件，其中突出部分226為自單件構件之第三部分234向外延伸之大體上為矩形的部分。 More specifically, the dice 214 shown in the non-limiting example preferably includes a pivot member 228, a first portion 230, a second portion 232, and a third portion 234. The pivot member 228 pivotally couples the first portion 230 to the circuit breaker housing 104 and, in particular, to the side panel 110 of the housing (shown in part in the dashed line in Figure 2), as shown 2 is best shown. The second portion 232 mates with the cam 212 and the third portion 234 mates with the projection 220 of the cast member 218. In the example shown and described herein, the impact surface 224 is disposed on the second portion 232 of the detent 214 and the projection portion 226 is disposed on the third portion 234 of the detent 214. Thus, as shown, the protruding portion 226 extends outwardly from the catch near the impact surface 224. With continued reference to FIG. 2, and also to FIGS. 4-7, the detent 214 is preferably a one-piece member, wherein the projection 226 is a generally rectangular portion that extends outwardly from the third portion 234 of the single member.

如圖2中最佳示出，突出部分226具有外邊緣236。當掣子214之衝擊表面224嚙合對應凸輪212，且詳言之，該凸輪之掣子表面222，或緊靠該掣子表面時(參見，例如圖2、圖5及圖6)，突出部分226之外邊緣236與鑄造構件218之上述凸起220配合。 As best shown in FIG. 2, the protruding portion 226 has an outer edge 236. When the impact surface 224 of the latch 214 engages the corresponding cam 212, and in particular, the camber surface 222 of the cam, or against the surface of the latch (see, for example, Figures 2, 5, and 6), the protruding portion The outer edge 236 of the 226 mates with the aforementioned projections 220 of the cast member 218.

鑄造構件218較佳為單件彈簧鑄件，其中凸起220可能自單件彈簧鑄件218橫向向外凸起且包含保持邊緣238。因此，保持邊緣238保持掣子214之向外邊緣236，如圖2、圖5及圖6所示，進而阻止掣子214之衝擊表面224完全釋放對應凸輪212及/或阻止上述的凸輪軸過旋轉及/或分別在凸輪212之表面222與掣子214之表面224之間的擦邊碰撞(例如衝擊及彈開)問題。將瞭解的是，儘管實例彈簧鑄件218之凸起220為單件彈簧鑄件218上之鑄造特徵，但凸起(未示出)之任何已知或適合的替代類型、形狀及/或配置可用來適當地與掣子之特徵(例如但不限於，突出部分226)配合以適合地控制掣子214之移動而不脫離所揭示概念之範疇。例如且不限於，相對更加複雜之耦接(未示出)為可能的，諸如彈簧鑄件218中之槽(未示出)中之掣子固定銷(未示出)或連接組件(未示出)。 The cast member 218 is preferably a one-piece spring casting, wherein the protrusion 220 can It can be raised laterally outward from the single piece spring casting 218 and includes a retaining edge 238. Thus, the retaining edge 238 maintains the outer edge 236 of the latch 214, as shown in Figures 2, 5, and 6, thereby preventing the impact surface 224 of the latch 214 from completely releasing the corresponding cam 212 and/or preventing the aforementioned camshaft from passing. Rotating and/or problem of edge collision (e.g., impact and pop-up) between the surface 222 of the cam 212 and the surface 224 of the detent 214, respectively. It will be appreciated that although the projections 220 of the example spring casting 218 are cast features on the one-piece spring casting 218, any known or suitable alternative type, shape and/or configuration of projections (not shown) may be used. Suitably, the features of the forceps, such as, but not limited to, the projections 226, cooperate to properly control the movement of the forceps 214 without departing from the scope of the disclosed concepts. For example and without limitation, a relatively more complicated coupling (not shown) is possible, such as a tweezers fixing pin (not shown) or a connection assembly in a slot (not shown) in the spring casting 218 (not shown) ).

如先前在上文所論述，實例儲能機構為閉合彈簧204。閉合彈簧204具有相對置之第一末端240與第二末端242(圖2及圖4至圖7)。彈簧鑄件218安置於閉合彈簧204之第二末端242上且在箭頭300方向上隨該彈簧一起移動，如圖2所示。如先前所論述，實例凸輪軸208包含：第一凸輪，其為加載凸輪210，該加載凸輪繞凸輪軸208樞轉以加載閉合彈簧204；及第二凸輪，其為掣子凸輪212，該掣子凸輪亦繞凸輪軸208樞轉以嚙合且脫離掣子214之衝擊表面224。 As previously discussed above, the example energy storage mechanism is a closing spring 204. The closing spring 204 has an opposite first end 240 and a second end 242 (Figs. 2 and 4 to 7). Spring casting 218 is disposed on second end 242 of closing spring 204 and moves with the spring in the direction of arrow 300, as shown in FIG. As previously discussed, the example camshaft 208 includes a first cam that is a loading cam 210 that pivots about a camshaft 208 to load a closure spring 204, and a second cam that is a forceps cam 212. The sub-cam also pivots about the camshaft 208 to engage and disengage the impact surface 224 of the detent 214.

圖4至圖7示出圖3之斷路器102的剖視圖，以便示出處於斷路器102之各種操作狀態期間之加載組件200。更具體而言，圖4示出處於經卸載且跳脫之狀態之斷路器102；圖5示出處於經加載且斷開之狀態之斷路器；圖6示出處於閉合過程中之斷路器102，其中彈簧鑄件218處於在掣子214例如歸因於過多凸輪軸旋轉力而向下受力(自圖6之視角)的情況下使掣子214停止之位置；及圖7示處出處於經卸載且閉合之狀態之斷路器102。 4 through 7 illustrate cross-sectional views of the circuit breaker 102 of FIG. 3 to illustrate the loading assembly 200 during various operational states of the circuit breaker 102. more Specifically, FIG. 4 shows the circuit breaker 102 in an unloaded and tripped state; FIG. 5 shows the circuit breaker in a loaded and disconnected state; FIG. 6 shows the circuit breaker 102 in a closed state, Wherein the spring casting 218 is in a position where the forceps 214 are stopped when the forceps 214 are forced downward (for example, from the perspective of FIG. 6) due to excessive camshaft rotational force; and FIG. 7 is shown to be unloaded. And the circuit breaker 102 in a closed state.

因此，將瞭解的是，所揭示加載組件200包含獨特的掣子214及彈簧鑄件218特徵(例如但不限於，彈簧鑄件218之凸起220，及掣子214之突出部分226)，該等特徵相互作用以在彈簧鑄件218充分靠近完全閉合位置以前阻止凸輪軸208滑動超過(例如過旋轉)掣子214。因此，所揭示概念用來藉由以某種方式將掣子214與彈簧鑄件218聯鎖來增強掣子操作，該方式阻止了可導致凸輪軸過旋轉之擦邊碰撞及/或對凸輪212及掣子214的損壞。 Accordingly, it will be appreciated that the disclosed loading assembly 200 includes unique tweezers 214 and spring casting 218 features (such as, but not limited to, protrusions 220 of spring castings 218, and projections 226 of tweezers 214), such features. The interaction prevents the camshaft 208 from slipping past (eg, over-rotating) the detent 214 before the spring casting 218 is sufficiently close to the fully closed position. Thus, the disclosed concept is used to enhance the operation of the latch by interlocking the latch 214 with the spring casting 218 in a manner that prevents edge collisions that can cause over-rotation of the camshaft and/or the cam 212 and Damage to the dice 214.

儘管已詳細描述所揭示概念之特定實施例，但熟習此項技術者將瞭解，對彼等細節之各種修改及替代可根據本揭示內容之全部教示加以發展。因此，所揭示之特定佈置意欲僅說明而不限制所揭示概念的範疇，該範疇將由隨附申請專利範圍及其任何及所有等效物之全範圍給定。 Having described the specific embodiments of the present invention in detail, it is understood that various modifications and substitutions of the details may be made in accordance with the teachings of the present disclosure. Therefore, the particular arrangements disclosed are intended to be illustrative only and not to limit the scope of the scope of the invention.

2‧‧‧斷路器 2‧‧‧Circuit breaker

4‧‧‧閉合彈簧 4‧‧‧Closed spring

6‧‧‧加載組件 6‧‧‧Loading components

8‧‧‧凸輪軸 8‧‧‧Camshaft

10‧‧‧加載凸輪 10‧‧‧Loading cam

12‧‧‧掣子凸輪 12‧‧‧掣子凸轮 cam

14‧‧‧掣子 14‧‧‧掣子

16‧‧‧側板 16‧‧‧ side panels

18‧‧‧彈簧鑄件 18‧‧‧Spring castings

20‧‧‧箭頭 20‧‧‧ arrow

22‧‧‧凸輪表面 22‧‧‧ cam surface

22'‧‧‧受損凸輪表面 22 ' ‧‧‧ Damaged cam surface

24‧‧‧掣子表面 24‧‧‧Electronic surface

24'‧‧‧受損掣子表面 24 ' ‧‧‧ Damaged scorpion surface

102‧‧‧電氣開關設備/斷路器 102‧‧‧Electrical Switchgear/Circuit Breaker

104‧‧‧外殼 104‧‧‧Shell

106‧‧‧可分離觸點 106‧‧‧Separable contacts

108‧‧‧操作機構 108‧‧‧Operator

110‧‧‧側板 110‧‧‧ side panels

200‧‧‧加載組件 200‧‧‧Loading components

204‧‧‧閉合彈簧 204‧‧‧Close spring

208‧‧‧凸輪軸 208‧‧‧Camshaft

210‧‧‧加載凸輪 210‧‧‧Loading cam

212‧‧‧掣子凸輪 212‧‧‧掣子凸轮 cam

214‧‧‧掣子 214‧‧‧掣子

218‧‧‧彈簧鑄件 218‧‧‧Spring castings

220‧‧‧凸起 220‧‧‧ bump

222‧‧‧掣子表面 222‧‧‧ 掣 surface

224‧‧‧衝擊表面 224‧‧‧ impact surface

226‧‧‧突出部分 226‧‧‧ highlight

228‧‧‧樞軸構件 228‧‧‧Pivot components

230‧‧‧第一部分 230‧‧‧Part I

232‧‧‧第二部分 232‧‧‧Part II

234‧‧‧第三部分 234‧‧‧Part III

236‧‧‧外邊緣 236‧‧‧ outer edge

238‧‧‧保持邊緣 238‧‧‧ Keep the edge

240‧‧‧彈簧之第一末端 240‧‧ ‧ the first end of the spring

242‧‧‧彈簧之第二末端 242‧‧ The second end of the spring

300‧‧‧箭頭 300‧‧‧ arrow

4-4‧‧‧線 4-4‧‧‧ line

當結合隨附圖式一起閱讀時，可自以上對較佳實施例之描述獲得對所揭示概念的全面瞭解，其中：圖1A及1B為先前技術斷路器及用於該斷路器之加載組件之部分的簡化側視圖；圖2為根據所揭示概念之實施例的斷路器及用於該斷路器之加載組件之部分的簡化側視圖；圖3為斷路器及加載組件之俯視圖；圖4為沿著圖3之線4-4截取之剖面圖，其中示出之斷路器處於經卸載且跳脫之位置；圖5示出圖4之剖面圖，但經修改以示出處於經加載且斷開之位置之斷路器；圖6示出圖5之剖面圖，但經修改以示出當斷路器處於閉合過程中且彈簧鑄件處於使掣子停止之位置時的斷路器；且圖7示出圖6之剖面圖，但經修改以示出處於經卸載且閉合之位置之斷路器。 A full understanding of the disclosed concepts can be obtained from the above description of the preferred embodiments, in which: FIG. 1A and FIG. 1B are prior art circuit breakers and load components for the circuit breakers. a simplified side view of the part; 2 is a simplified side elevational view of a portion of a circuit breaker and a load assembly for the circuit breaker in accordance with an embodiment of the disclosed concept; FIG. 3 is a plan view of the circuit breaker and load assembly; FIG. 4 is a line along line 4 of FIG. -4 cutaway cross-sectional view showing the circuit breaker in an unloaded and tripped position; Figure 5 is a cross-sectional view of Figure 4, but modified to show the circuit breaker in a loaded and disconnected position; Figure 6 shows a cross-sectional view of Figure 5, but modified to show the circuit breaker when the circuit breaker is in the closing process and the spring casting is in a position to stop the detent; and Figure 7 shows a cross-sectional view of Figure 6, but Modified to show the circuit breaker in an unloaded and closed position.

Claims

一種用於一電氣開關設備(102)之加載組件(200)，該電氣開關設備(102)包含：一外殼(104)；由該外殼(104)封入之可分離觸點(106)；及一用於斷開及閉合該等可分離觸點(106)之操作機構(108)，該加載組件(200)包括：一儲能機構(204)，其可在一經加載位置與一經卸載位置之間移動；一鑄造構件(218)，其耦接至該儲能機構(204)且可隨該儲能機構一起移動，該鑄造構件(218)包含一凸起(220)；一凸輪軸(208)，其經建構而以可樞轉方式耦接至該外殼(104)，該凸輪軸(208)包含複數個凸輪(210、212)；及一掣子(214)，其經建構而以可樞轉方式耦接至該外殼(104)，該掣子(214)包括一衝擊表面(224)及一突出部分(226)，其中該掣子(214)之該衝擊表面(224)與該等凸輪(212)中之一對應凸輪配合以阻擋該凸輪軸(208)之過旋轉，且其中該掣子(214)之該突出部分(226)與該鑄造構件(218)之該凸起(220)配合以維持該掣子(214)與該等凸輪(212)中之該對應凸輪之間的所需關係。 A loading assembly (200) for an electrical switching apparatus (102), the electrical switching apparatus (102) comprising: a housing (104); a separable contact (106) enclosed by the housing (104); An operating mechanism (108) for opening and closing the separable contacts (106), the loading assembly (200) comprising: an energy storage mechanism (204) operable between a loaded position and an unloaded position Moving; a casting member (218) coupled to the energy storage mechanism (204) and movable along with the energy storage mechanism, the casting member (218) comprising a protrusion (220); a cam shaft (208) Constructed to be pivotally coupled to the outer casing (104), the camshaft (208) includes a plurality of cams (210, 212); and a catch (214) that is constructed to be pivotable The rotation mode is coupled to the outer casing (104), the rafter (214) includes an impact surface (224) and a protruding portion (226), wherein the impact surface (224) of the rafter (214) and the cams One of (212) corresponds to a cam fit to block over rotation of the camshaft (208), and wherein the projection (226) of the latch (214) and the projection (220) of the cast member (218) Cooperate to maintain Detent (214) with such cam (212) of the desired relationship between the corresponding cam.

如申請專利範圍第1項之加載組件(200)，其中該掣子(214)進一步包括一樞軸構件(228)、一第一部分(230)、一第二部分(232)及一第三部分(234)；其中該樞軸構件(228)經構造以將該第一部分(230)以可樞轉方式耦接至該電氣開關設備(102)之該外殼(104)；其中該第二部分(232)與該等凸輪(212)中之該對應凸輪配合；且其中該第三部分(234)與該鑄造構件(218)之該凸起(220)配合。 For example, the loading component (200) of claim 1 of the patent scope, wherein the The sub-port (214) further includes a pivot member (228), a first portion (230), a second portion (232), and a third portion (234); wherein the pivot member (228) is configured to The first portion (230) is pivotally coupled to the housing (104) of the electrical switching device (102); wherein the second portion (232) is mated with the corresponding cam of the cams (212); The third portion (234) cooperates with the protrusion (220) of the cast member (218).

如申請專利範圍第2項之加載組件(200)，其中該衝擊表面(224)安置於該掣子(214)之該第二部分(232)上；其中該突出部分(226)安置於該掣子(214)之該第三部分(234)上；且其中該突出部分(226)自靠近該衝擊表面(224)之該掣子(214)向外延伸。 The loading assembly (200) of claim 2, wherein the impact surface (224) is disposed on the second portion (232) of the detent (214); wherein the protruding portion (226) is disposed on the crucible The third portion (234) of the sub- (214); and wherein the projection (226) extends outwardly from the detent (214) adjacent the impact surface (224).

如申請專利範圍第3項之加載組件(200)，其中該掣子(214)為一單件構件；且其中該突出部分(226)為一自該單件構件之該第三部分(234)向外延伸之大體上為矩形的部分。 The loading assembly (200) of claim 3, wherein the dice (214) is a one-piece member; and wherein the protruding portion (226) is a third portion (234) from the one-piece member A generally rectangular portion that extends outward.

如申請專利範圍第4項之加載組件(200)，其中該突出部分(226)具有一外邊緣(236)；且其中當該掣子(214)之該衝擊表面(224)嚙合該等凸輪(212)中之該對應凸輪時，該突出部分(226)之該外邊緣(236)與該鑄造構件(218)之該凸起(220)配合。 The loading assembly (200) of claim 4, wherein the protruding portion (226) has an outer edge (236); and wherein the impact surface (224) of the latch (214) engages the cams ( The outer edge (236) of the protruding portion (226) engages the projection (220) of the cast member (218) when the corresponding cam is in 212).

如申請專利範圍第5項之加載組件(200)，其中該鑄造構件(218)為一單件式彈簧鑄件；其中該凸起(220)自該單件式彈簧鑄件橫向向外凸起且包含一保持邊緣 (238)；且其中該單件彈簧鑄件(218)之該保持邊緣(238)保持該掣子(214)之該向外邊緣(236)，進而阻止該掣子(214)之該衝擊表面(224)釋放該等凸輪(212)中之該對應凸輪。 The loading assembly (200) of claim 5, wherein the casting member (218) is a one-piece spring casting; wherein the projection (220) projects laterally outward from the one-piece spring casting and comprises Keep the edge (238); and wherein the retaining edge (238) of the one-piece spring casting (218) retains the outward edge (236) of the detent (214), thereby preventing the impact surface of the detent (214) ( 224) Release the corresponding cam of the cams (212).

如申請專利範圍第1項之加載組件(200)，其中該儲能機構為一閉合彈簧(204)；其中該鑄造構件為一彈簧鑄件(218)；其中該閉合彈簧(204)包含一第一末端(240)及一第二末端(242)，該第二末端(242)安置成與該第一末端(240)對置且遠離該第一末端(240)；且其中該彈簧鑄件(218)安置於該閉合彈簧(204)之該第二末端(242)上。 The loading assembly (200) of claim 1, wherein the energy storage mechanism is a closing spring (204); wherein the casting member is a spring casting (218); wherein the closing spring (204) comprises a first An end (240) and a second end (242) disposed opposite the first end (240) and away from the first end (240); and wherein the spring casting (218) Disposed on the second end (242) of the closing spring (204).

如申請專利範圍第1項之加載組件(200)，其中該複數個凸輪為一第一凸輪(210)及一第二凸輪(212)。 The loading assembly (200) of claim 1, wherein the plurality of cams are a first cam (210) and a second cam (212).

如申請專利範圍第8項之加載組件(200)，其中該第一凸輪為一加載凸輪(210)；其中該加載凸輪(210)繞該凸輪軸(208)樞轉以加載該儲能機構(204)；其中該第二凸輪為一掣子凸輪(212)；且其中該掣子凸輪(212)繞該凸輪軸(208)樞轉以嚙合且脫離該掣子(214)之該衝擊表面(224)。 The loading assembly (200) of claim 8 wherein the first cam is a loading cam (210); wherein the loading cam (210) pivots about the camshaft (208) to load the energy storage mechanism ( 204) wherein the second cam is a latch cam (212); and wherein the latch cam (212) pivots about the camshaft (208) to engage and disengage the impact surface of the latch (214) ( 224).

如申請專利範圍第9項之加載組件(200)，其中該掣子凸輪(212)包含一掣子表面(222)；且其中該掣子表面(222)與該掣子(214)之該衝擊表面(224)配合以阻擋該凸輪軸(208)之移動。 The loading assembly (200) of claim 9 wherein the forceps cam (212) comprises a forceps surface (222); and wherein the impact of the forceps surface (222) and the forceps (214) The surface (224) cooperates to block movement of the camshaft (208).

一種電氣開關設備(102)，其包括：一外殼(104)；由該外殼(104)封入之可分離觸點(106)；一用於斷開及閉合該等可分離觸點(106)之操作機構(108)；及一加載組件(200)，其包括：一儲能機構(204)，其可在一經加載位置與一經卸載位置之間移動；一鑄造構件(218)，其耦接至該儲能機構(204)且可隨該儲能機構一起移動，該鑄造構件(218)包含一凸起(220)；一凸輪軸(208)，其經建構而以可樞轉方式耦接至該外殼(104)，該凸輪軸(208)包含複數個凸輪(210、212)；及一掣子，其經建構而以可樞轉方式耦接至該外殼(104)，該掣子(214)包括一衝擊表面(224)及一突出部分(226)，其中該掣子(214)之該衝擊表面(224)與該等凸輪(212)中之一對應凸輪配合以阻擋該凸輪軸(208)之過旋轉，且其中該掣子(214)之該突出部分(226)與該鑄造構件(218)之該凸起(220)配合以維持該掣子(214)與該等凸輪(212)中之該對應凸輪之間的該所需關係。 An electrical switching device (102) comprising: a housing (104); a separable contact (106) enclosed by the housing (104); an operating mechanism (108) for opening and closing the separable contacts (106); and a loading assembly ( 200), comprising: an energy storage mechanism (204) movable between a loaded position and an unloaded position; a cast member (218) coupled to the energy storage mechanism (204) and The energy storage mechanism moves together, the cast member (218) includes a projection (220); a camshaft (208) that is pivotally coupled to the outer casing (104), the camshaft (208) a plurality of cams (210, 212); and a latch that is pivotally coupled to the housing (104), the latch (214) including an impact surface (224) and a projection a portion (226), wherein the impact surface (224) of the detent (214) cooperates with a cam of one of the cams (212) to block over rotation of the camshaft (208), and wherein the dice ( The protrusion (226) of the 214) cooperates with the protrusion (220) of the cast member (218) to maintain the need between the catch (214) and the corresponding cam of the cams (212) relationship.

如申請專利範圍第11項之電氣開關設備(102)，其中該加載組件(200)之該掣子(214)進一步包括一樞軸構件(228)、一第一部分(230)、一第二部分(232)及一第三部分(234)；其中該樞軸構件(228)將該第一部分(230)以可樞轉方式耦接至該外殼(104)；其中該第二部分(232)與該等凸輪(212)中之該對應凸輪配合；且其中該第三部分(234)與該鑄造構件(218)之該凸起(220)配合。 The electrical switchgear (102) of claim 11, wherein the latch (214) of the loading component (200) further comprises a a pivot member (228), a first portion (230), a second portion (232), and a third portion (234); wherein the pivot member (228) pivots the first portion (230) Coupling to the outer casing (104); wherein the second portion (232) is mated with the corresponding cam of the cams (212); and wherein the third portion (234) and the convex portion of the cast member (218) From (220) cooperation.

如申請專利範圍第12項之電氣開關設備(102)，其中該衝擊表面(224)安置於該掣子(214)之該第二部分(232)上；其中該突出部分(226)安置於該掣子(214)之該第三部分(234)上；且其中該突出部分(226)自靠近該衝擊表面(224)之該掣子(214)向外延伸。 The electrical switchgear (102) of claim 12, wherein the impact surface (224) is disposed on the second portion (232) of the latch (214); wherein the protruding portion (226) is disposed The third portion (234) of the detent (214); and wherein the projection (226) extends outwardly from the detent (214) adjacent the impact surface (224).

如申請專利範圍第13項之電氣開關設備(102)，其中該掣子(214)為一單件構件；且其中該突出部分(226)為一自該單件構件之該第三部分(234)向外延伸之大體上為矩形的部分。 The electrical switchgear (102) of claim 13, wherein the die (214) is a one-piece member; and wherein the protruding portion (226) is a third portion from the one-piece member (234) a generally rectangular portion that extends outward.

如申請專利範圍第14項之電氣開關設備(102)，其中該突出部分(226)具有一外邊緣(236)；且其中當該掣子(214)之該衝擊表面(224)嚙合該等凸輪(212)中之該對應凸輪時，該突出部分(226)之該外邊緣(236)與該鑄造構件(218)之該凸起(220)配合。 The electrical switchgear (102) of claim 14, wherein the protruding portion (226) has an outer edge (236); and wherein the impact surface (224) of the latch (214) engages the cam The outer edge (236) of the protruding portion (226) mates with the projection (220) of the cast member (218) when the corresponding cam is in (212).

如申請專利範圍第15項之電氣開關設備(102)，其中該鑄造構件(218)為一單件彈簧鑄件；其中該凸起 (220)自該單件彈簧鑄件橫向向外凸起且包含一保持邊緣(238)；且其中該單件彈簧鑄件(218)之該保持邊緣(238)保持該掣子(214)之該向外邊緣(236)，進而阻止該掣子(214)之該衝擊表面(224)釋放該等凸輪(212)中之該對應凸輪。 The electrical switchgear (102) of claim 15 wherein the cast member (218) is a one-piece spring casting; wherein the projection (220) projecting laterally outward from the one-piece spring casting and including a retaining edge (238); and wherein the retaining edge (238) of the one-piece spring casting (218) maintains the orientation of the catch (214) The outer edge (236), in turn, prevents the impact surface (224) of the latch (214) from releasing the corresponding cam in the cams (212).

如申請專利範圍第11項之電氣開關設備(102)，其中該儲能機構為一閉合彈簧(204)；其中該鑄造構件為一彈簧鑄件(214)；其中該閉合彈簧(204)包含一第一末端(240)及一第二末端(242)，該第二末端(242)安置成與該第一末端(240)對置且遠離該第一末端(240)；且其中該彈簧鑄件(218)安置於該閉合彈簧(204)之該第二末端(242)上。 The electrical switchgear (102) of claim 11, wherein the energy storage mechanism is a closing spring (204); wherein the casting member is a spring casting (214); wherein the closing spring (204) comprises a first An end (240) and a second end (242) disposed opposite the first end (240) and away from the first end (240); and wherein the spring casting (218) ) is disposed on the second end (242) of the closing spring (204).

如申請專利範圍第11項之電氣開關設備(102)，其中該複數個凸輪為一第一凸輪(210)及一第二凸輪(212)；其中該第一凸輪(210)為一加載凸輪(210)；其中該加載凸輪(210)繞該凸輪軸(208)樞轉以加載該儲能機構(204)；其中該第二凸輪為一掣子凸輪(212)；且其中該掣子凸輪(212)繞該凸輪軸(208)樞轉以嚙合且脫離該掣子(214)之該衝擊表面(224)。 The electrical switchgear (102) of claim 11, wherein the plurality of cams are a first cam (210) and a second cam (212); wherein the first cam (210) is a loading cam ( 210); wherein the loading cam (210) pivots about the camshaft (208) to load the energy storage mechanism (204); wherein the second cam is a forceps cam (212); and wherein the forceps cam ( 212) pivoting about the camshaft (208) to engage and disengage the impact surface (224) of the detent (214).

如申請專利範圍第18項之電氣開關設備(102)，其中該掣子凸輪(212)包含一掣子表面(222)；且其中該掣子表面(222)與該掣子(214)之該衝擊表面(224)配合以阻擋該凸輪軸(208)之移動。 The electrical switchgear (102) of claim 18, wherein the latch cam (212) includes a latch surface (222); and wherein the latch surface (222) and the latch (214) The impact surface (224) cooperates to block movement of the camshaft (208).

如申請專利範圍第11項之加載組件(102)，其中該電氣開關設備為一斷路器(102)；其中該斷路器(102)之該外殼(104)包含至少一個側板(110)；且其中該凸輪軸(208)及該掣子(214)以可樞轉方式耦接至該至少一個側板(110)。 For example, the loading component (102) of claim 11 of the patent scope, wherein The electrical switching device is a circuit breaker (102); wherein the outer casing (104) of the circuit breaker (102) includes at least one side plate (110); and wherein the cam shaft (208) and the die (214) are pivotable The rotation mode is coupled to the at least one side panel (110).