CN203038876U - Circuit breaker operating mechanism with alarm signal triggering device - Google Patents
Circuit breaker operating mechanism with alarm signal triggering device Download PDFInfo
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- CN203038876U CN203038876U CN 201220736828 CN201220736828U CN203038876U CN 203038876 U CN203038876 U CN 203038876U CN 201220736828 CN201220736828 CN 201220736828 CN 201220736828 U CN201220736828 U CN 201220736828U CN 203038876 U CN203038876 U CN 203038876U
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- operating mechanism
- alarm signal
- lock catch
- circuit breaker
- trigger equipment
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Abstract
The utility model provides a circuit breaker operating mechanism with an alarm signal triggering device, belonging to the technical field of low-voltage electrical appliances. The circuit breaker operating mechanism comprises an operating mechanism side plate, a tripping lever, a lock catch, a handle lever component, an upper connecting rod, a lower connecting rod, a rotating shaft, a main spring and an alarm signal triggering device. One end of the upper connecting rod is connected with the tripping lever, the other end of the upper connecting rod is connected with one end of the lower connecting rod, and the other end of the lower connecting rod is connected with a rotating shaft. The lock catch and the handle lever component are cooperated to form a separable mechanical fastener structure. One end of the main spring is hung on the handle lever component, and the other end of the main spring is hung on a hinge shaft of the upper connecting rod and the lower connecting rod. The circuit breaker operating mechanism is characterized in that a first pivot shaft extends from the lock catch and is connected with the operating mechanism side plate, an end of the first pivot shaft is formed with a first triggering device matching part which extends out of the operating mechanism side plate, and the alarm signal triggering device is connected and matched with the first triggering device matching part. The circuit breaker operating mechanism has the advantages that the operating mechanism is simplified, the manufacture and assembly are facilitated, and a requirement of development toward miniaturization of the circuit breaker is satisfied.
Description
Technical field
The utility model belongs to the low voltage electrical apparatus technology field, is specifically related to a kind of circuit breaker operation mechanism with alarm signal trigger equipment
Background technology
The self-evident function of above mentioned alarm signal trigger equipment is to trigger the warning device (warning device such as signal lamp, buzzer or similar device) that is equipped with on the circuit breaker, is to transmit the transition member of circuit breaker disjunction trip signal or claim execution unit.
Circuit breaker is the electric component be switched on or switched off circuit, carrying nominal load being used in the distribution network and power consumption equipment and circuit are protected, timely disjunction faulty circuit when circuit occurs such as the fault that caused by overload, short circuit etc.Triggering aforesaid warning device by the alarm signal trigger equipment with the tripping lever interlock of the operating mechanism of circuit breaker is the universally recognized way of present industry, can be by patent documentation such as US Patent No. 005440088A1 and US6882258B2 confirmation to this.In these two patent schemes the former is that US005440088A1 passes through the one-level kind of drive is transmitted circuit breaker by the alarm signal trigger equipment (patent claims the transmission device that links) with the interlock of tripping lever disjunction trip signal, namely activate warning device, has the simple strong point of power transmission, but owing to alarm signal trigger equipment complex structure and owing to be installed on the inside of operating mechanism, thereby need the configuration asessory shaft to ensure its rotation, and need offer window at the side plate of operating mechanism, lean out and use and touch warning device by the elongated end of this window for the alarm signal trigger equipment.So structure not only causes difficulty to manufacturing, and gives the generation trouble is installed; The latter in these two patents is that US6882258B2 passes through the disjunction trip signal that the two-stage drive connection transmits circuit breaker, particularly, use two interlock bodies and coaxial hinged, cooperate one piece of torsionspring to realize pretension again, the power transmission of being satisfied between two STATEMENT OF FEDERALLY SPONSORED by torsionspring cooperates requirement, and as seen structure more becomes complicated for the former.Especially, the structure that these two patent schemes only are the alarm signal trigger equipments there are differences, and something in common all is the purpose that reaches the triggering warning device with the interlock of tripping lever.
From the above, alarm signal trigger equipment and tripping lever are constituted the complexity that interlock has increased operating mechanism to a great extent, finally circuit breaker is constituted restriction to the miniaturization development.But, there is no all technology enlightenments of the alarm signal trigger equipment being broken away from the unfavorable situation that links with the tripping lever in disclosed patent and the non-patent literature up to now.
At above-mentioned prior art, the applicant has done long-term and useful exploration and has made repeated attempts, and finds a way to resolve the problem finally, and has formed technical scheme described below
Summary of the invention
Task of the present utility model is to provide a kind of and need not to rely on that the tripping lever passes to the alarm signal trigger equipment with the disjunction trip signal of circuit breaker and the structure of the mechanism that helps to simplify the operation, be conducive to conveniently make with assembling and be of value to and satisfy the circuit breaker operation mechanism with alarm signal trigger equipment that the circuit breaker miniaturization requires.
Task of the present utility model is finished like this, a kind of circuit breaker operation mechanism with alarm signal trigger equipment, comprise the operating mechanism side plate in the housing that is installed on circuit breaker, tripping lever and snap close and the tiller assembly of difference hub setting on mechanism's side plate, last connecting rod, lower link, rotating shaft, main spring, the alarm signal trigger equipment, last connecting rod one end and the tripping lever is rotationally connected and an end of the other end and lower link is rotationally connected, the other end and the rotating shaft of lower link are rotationally connected, snap close matches with the tripping lever and constitutes separable mechanical snap structure, one end of main spring is placed on the tiller assembly, and the other end is hung on the jointed shaft of connecting rod and lower link, for operating mechanism provides operating energy, it is characterized in that: be extended with one first pivotal axis on the described snap close, described first pivotal axis pivots with described operating mechanism side plate and is connected, the described first pivotal axis end constitutes one first trigger equipment auxiliary section, this first trigger equipment auxiliary section leans out described operating mechanism side plate, and described alarm signal trigger equipment and the described first trigger equipment auxiliary section connect.
In a specific embodiment of the present utility model, described side plate has operating mechanism first side plate and operating mechanism second side plate that faces each other and arrange, described snap close comprises parallel first lock catch arm that arranges and second lock catch arm and the base plate that is connected described first lock catch arm and second lock catch arm, described first, second lock catch arm and base plate constitute the structure of U-shaped, described first pivotal axis is arranged on first lock catch arm, be extended with one second pivotal axis back to a side of first lock catch arm and in the position corresponding to first pivotal axis at second lock catch arm, this second pivotal axis pivots with described operating mechanism second side plate and is connected.
In another specific embodiment of the present utility model, described snap close also includes intensity and parallel with a described base plate back shaft that is used for strengthening between described first, second lock catch arm, one end of this back shaft is connected with first lock catch arm, and the other end is connected with second lock catch arm.
In another specific embodiment of the present utility model, described alarm signal trigger equipment comprises contact arm seat and contact arm, and the contact arm seat is fixedlyed connected with described first auxiliary section, and contact arm activates warning device.
Also has in the specific embodiment described contact arm seat and the contact arm structure that is one of the forming of the present utility model.
The technical scheme that the utility model provides is owing to the alarm signal trigger equipment being connected with snap close and realizing linking, thereby first pivotal axis that only need make first lock catch arm of snap close leans out operating mechanism first side plate, and constitute first a trigger equipment auxiliary section matched with the alarm signal trigger equipment in the end of first pivotal axis, therefore do not change the structure of operating mechanism, mechanism not only can simplify the operation, and be conducive to convenient the making and assembling, and be of value to and satisfy circuit breaker to the requirement of miniaturization development.
Description of drawings
Fig. 1 is package assembly schematic diagram of the present utility model.
Fig. 2 is the end view of Fig. 1.
Fig. 3 is the perspective exploded view of Fig. 1.
Fig. 4 is tripping lever schematic diagram of the present utility model.
Fig. 5 is snap close schematic diagram of the present utility model.
Fig. 6 is tripping lever of the present utility model and snap close assembling schematic diagram.
Fig. 7 is operating mechanism "on" position structural representation of the present utility model.
Fig. 8 is operating mechanism trip status structural representation of the present utility model.
Embodiment
In order to make the public can fully understand technical spirit of the present utility model and beneficial effect; the applicant will describe in detail embodiment of the present utility model below by reference to the accompanying drawings; but the applicant is not restriction to technical scheme to the description of embodiment, anyly makes form but not the variation of essence all should be considered as protection range of the present utility model according to the utility model design.
See also Fig. 1, Fig. 2 and Fig. 3, the figure shows the overall structure of operating mechanism, specifically, the circuit breaker operation mechanism with alarm signal trigger equipment that the utility model provides comprises the operating mechanism side plate 1 in the housing that is installed on circuit breaker, tripping lever 4 and snap close 2 and tiller 20 assemblies of difference hub setting on mechanism's side plate 1, last connecting rod 6, lower link 7, rotating shaft 8, the main spring (not shown), alarm signal trigger equipment 3, last connecting rod 6 one ends and tripping lever 4 is rotationally connected and an end of the other end and lower link 7 is rotationally connected, the other end of lower link 7 and rotating shaft 8 are rotationally connected, snap close 2 matches with tripping lever 4 and constitutes separable mechanical snap structure, because these structure members of operating mechanism are except as technical essential of the present utility model and with all the other are all identical with prior art alarm signal trigger equipment 3 and snap close 2 connections, for example can be referring to aforesaid US005440088A1 and US6882258B2, therefore the applicant no longer gives unnecessary details it, again, though main spring is not shown in the drawings, but can know fully according to known technology: an end of main spring is placed on the tiller assembly 20, and the other end is for hinged, lower link 6, on 7 the jointed shaft, for operating mechanism provides operating energy.
Ask for an interview Fig. 5 and Fig. 6 and continue in conjunction with Fig. 1 to Fig. 3, as technical essential of the present utility model: the interlock of the alarm signal trigger equipment 3 in the prior art with tripping lever 4 changed into the interlock of alarm signal trigger equipment 3 with snap close 2.By shown in Figure 4, snap close 2 by first, second parallel lock catch arm 21,22 and base plate 23 between first, second lock catch arm 21,22 same direction one ends constitute the structure of U-shaped, particularly, one end of base plate 23 is connected with an end of first lock catch arm 21, and the other end of base plate 23 is connected with an end of second lock catch arm 22.Back to a side of second lock catch arm 22 and the middle part that is positioned at the length direction of first lock catch arm 21 substantially one first pivotal axis 211 is arranged fixedly at first lock catch arm 21, this first pivotal axis 211 and aforementioned operation mechanism first side plate 11 pivots and is connected (being rotationally connected), and back to a side of first lock catch arm 21 and in the fixed-site corresponding to first pivotal axis 211 one second pivotal axis 221 being arranged at second lock catch arm 22, this second pivotal axis 221 pivots with aforesaid operating mechanism second side plate 12 and is connected (being rotationally connected).End at first pivotal axis 211 constitutes one first trigger equipment auxiliary section 2111, and this first trigger equipment auxiliary section 2111 is stretched and namely leant out operating mechanism first side plate 11.By shown in Figure 4, alarm signal trigger equipment 3 comprises contact arm seat 31 and be used for to activate the contact arm 32 of the warning device of circuit breaker, and contact arm 32 directly extends and is formed on the contact arm seat 31, namely contact arm seat 31 and contact arm 32 both be structure as a whole.Constitute one second trigger equipment auxiliary section 311 towards the position of the aforesaid first trigger equipment auxiliary section 2111 at contact arm seat 31, first, second trigger equipment auxiliary section 2111,311 tenon fourth of the twelve Earthly Branches each other cooperates.
Shown in diagram, in the present embodiment, the aforesaid first trigger equipment auxiliary section 2111 is tenon, and the second trigger equipment auxiliary section is the fourth of the twelve Earthly Branches, matches and make alarm signal trigger equipment 3 and snap close 2 constitute interlock in the tenon fourth of the twelve Earthly Branches.Certainly, also can offer hole as the fourth of the twelve Earthly Branches in the distal end faces of first pivotal axis 211, fill the post of the first trigger equipment auxiliary section 2111 by the hole, and on contact arm seat 31 and corresponding to the prominent bead of establishing by tenon in the position of the first trigger equipment auxiliary section 2111, fill the post of the second trigger equipment auxiliary section 311 by bead, bead can constitute alarm signal trigger equipment 3 and snap close 2 interlocks equally with cooperating of hole.
In order to increase the intensity between first, second lock catch arm 21,22, a back shaft 24 parallel with base plate 23 arranged fixedly also between first, second lock catch arm 21,22.
Ask for an interview Fig. 4 and in conjunction with Fig. 2, a pair of lug boss 51 under the "on" position on the tripping lever 5 contacts back to second contact site 222 on the base plate 23 1 end end faces back to first contact site 212 and second lock catch arm 22 on the base plate 23 1 end end faces with first lock catch arm 21 of snap close 2 respectively, the lug boss 51 of tripping lever 5 has retrained snap close 2 clockwise rotating around first pivotal axis 211 like this, under this position, the base plate lug boss 231 of snap close 2 constitutes mechanical snap with the contact site of tripping lever 4 42 and is connected, thereby constraint tripping lever 4 is around the 44 clockwise rotations of tripping axle.Thus, quadric chain (going up connecting rod 6, lower link 7 and rotating shaft 8) can keep the stable of "on" position, and moving contact 91 and the fixed contact 92 of contact apparatus 9 keep in touch state.And when the normal breaking operation of operating personnel's executive circuit, tripping lever 5, snap close 2, tripping lever 4 keep contacting with each other stable state.End at tripping lever 4 constitutes tripping lever arc surface 41, constitutes connecting rod arc surface 61(Fig. 1 at an end of last connecting rod 6 and shows).
Concern that from driving-chain when circuit breaks down, the circuit breaker tripping device action drives tripping lever 5 actions and impels the operating mechanism tripping operation to thread off, and can disintegrate the stable state of tripping lever 5, snap close 2, tripping lever 4.Obviously, from transmitting the target of tripping alarm signal, tripping lever 5, snap close 2, tripping lever 4 all have the primary condition that becomes the source moving part.
Continue to see Fig. 2, Fig. 5 and Fig. 6, on aforesaid base plate 23 and towards a side of tripping lever 4, constitute a pair of base plate lug boss 231, on aforesaid second lock catch arm 22, also constitute a buckle hanging unit 223.
Ask for an interview Fig. 7 and Fig. 8 and in conjunction with Fig. 2, the applicant describes the action principle of alarm signal trigger equipment 3: at first describe the tripping operation process, circuit breaker tripping device testing circuit fault actions, the tripping lever 5 that drives operating mechanism rotates around tripping lever axle 52 clockwise directions, first of 51 pairs of snap closes 2 of a pair of lug boss on the tripping lever 5, second contact site 212,222 backstop contact breaks away from, then snap close 2 is unlocked, snap close 2 rotates around first pivotal axis, 211 clockwise directions under the pushing driving effect of 42 pairs of base plate lug bosses 231 of tripping lever 4 contact sites, cause snap close 2 to separate release with the hasp of tripping lever 4, circuit breaker is carried out the action of threading off.Tripping lever 4 pivots around tripping axle 44 clockwise directions, tripping lever 4 has crook 43, on the pivot track, crook 43 contacts with the buckle hanging unit 223 of snap close 2 and further applies active force, and snap close 2 arrives the settling position of circuit breaker tripping state under the driving of tripping lever 4.Alarm signal trigger equipment 3 and snap close 2 snap-fit rotate with snap close piece 2, turn over an angle
The back arrives the settling position (as Fig. 6 and shown in Figure 8) of circuit breaker tripping state, thus, the elongated end of alarm signal trigger equipment 3 is that contact arm 32 drives warning device 30 actions, specifically is sensitive switch or the travel switch that drives in the warning device 30, thereby the alarm signal of circuit breaker trip is provided.
Secondly, describe and detain reseting procedure again, when reset operation is detained in the operating mechanism execution again, be converted to the process of detaining state again by trip status, tripping lever 4 rotation that under the 20 driving effects of tiller assembly, resets, the contact action that its crook 43 is removed the buckle hanging unit 223 of snap close 2, snap close 2 rotation that under snap close back-moving spring 10 effect, resets, after arrival is detained the state position again, the lug boss 51 of tripping lever 5 and aforesaid first, second contact site 212,222 hasps, and, contact site 42 hasps of aforesaid base plate lug boss 231 and tripping lever 4.Thus, alarm signal trigger equipment 3 rotates with snap close 2 and resets, and has removed the brake function to warning device 30.
In sum, the technical scheme that provides of the utility model has following technique effect:
The circuit breaker tripping tripping operation, pivot by snap close piece on the operating mechanism drives alarm signal trigger equipment rotation action, activates warning annex output circuit breaker trip signal thus, and the alarm signal trigger equipment connects by simple structure snap-fit with snap close piece, simple in structure, reliable in action
Claims (5)
1.
A kind of circuit breaker operation mechanism with alarm signal trigger equipment, comprise the operating mechanism side plate (1) in the housing that is installed on circuit breaker, tripping lever (4) and snap close (2) and tiller (20) assembly of difference hub setting on mechanism's side plate (1), last connecting rod (6), lower link (7), rotating shaft (8), main spring, alarm signal trigger equipment (3), last connecting rod (6) one ends and tripping lever (4) is rotationally connected and an end of the other end and lower link (7) is rotationally connected, the other end of lower link (7) and rotating shaft (8) are rotationally connected, snap close (2) matches with tripping lever (4) and constitutes separable mechanical snap structure, one end of main spring is placed on the tiller assembly (20), and the other end is hung on the jointed shaft of connecting rod (6) and lower link (7), for operating mechanism provides operating energy, it is characterized in that: be extended with one first pivotal axis (211) on the described snap close (2), described first pivotal axis (211) pivots with described operating mechanism side plate (1) and is connected, described first pivotal axis (211) end constitutes one first trigger equipment auxiliary section (2111), this first trigger equipment auxiliary section (2111) leans out described operating mechanism side plate (1), and described alarm signal trigger equipment (3) connects with the described first trigger equipment auxiliary section (2111).
2.
Circuit breaker operation mechanism with alarm signal trigger equipment according to claim 1, it is characterized in that described side plate (1) has operating mechanism first side plate (11) and operating mechanism second side plate (12) that faces each other and arrange, described snap close (2) comprises parallel first lock catch arm (21) that arranges with second lock catch arm (22) and is connected described first lock catch arm (21) and the base plate (23) of second lock catch arm (22), described first, second lock catch arm (21,22) and base plate (23) constitute the structure of U-shaped, described first pivotal axis (211) is arranged on first lock catch arm (21), be extended with one second pivotal axis (221) back to a side of first lock catch arm (21) and in the position corresponding to first pivotal axis (211) at second lock catch arm (22), this second pivotal axis (221) pivots with described operating mechanism second side plate (12) and is connected.
3.
Circuit breaker operation mechanism with alarm signal trigger equipment according to claim 2, it is characterized in that described snap close (2) also includes intensity and parallel with described base plate (a 23) back shaft (24) that is used for strengthening between described first, second lock catch arm (21,22), one end of this back shaft (24) is connected with first lock catch arm (21), and the other end is connected with second lock catch arm (22).
4.
Circuit breaker operation mechanism with alarm signal trigger equipment according to claim 1, it is characterized in that described alarm signal trigger equipment (3) comprises contact arm seat (31) and contact arm (32), contact arm seat (31) is fixedlyed connected with described first auxiliary section (2111), and contact arm (32) activates warning device (30).
5.
Circuit breaker operation mechanism with alarm signal trigger equipment according to claim 4 is characterized in that both structures that are one of the forming of described contact arm seat (31) and contact arm (32)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220736828 CN203038876U (en) | 2012-12-28 | 2012-12-28 | Circuit breaker operating mechanism with alarm signal triggering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220736828 CN203038876U (en) | 2012-12-28 | 2012-12-28 | Circuit breaker operating mechanism with alarm signal triggering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203038876U true CN203038876U (en) | 2013-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220736828 Expired - Lifetime CN203038876U (en) | 2012-12-28 | 2012-12-28 | Circuit breaker operating mechanism with alarm signal triggering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203038876U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016173464A1 (en) * | 2015-04-28 | 2016-11-03 | 上海电科电器科技有限公司 | Secondary latch mechanism for operating mechanism of circuit breaker |
| WO2016173461A1 (en) * | 2015-04-28 | 2016-11-03 | 上海电科电器科技有限公司 | Operating mechanism of circuit breaker |
| CN109801816A (en) * | 2017-11-16 | 2019-05-24 | 三信国际电器上海有限公司 | The processing method and breaker of a kind of operating mechanism, operating mechanism |
-
2012
- 2012-12-28 CN CN 201220736828 patent/CN203038876U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016173464A1 (en) * | 2015-04-28 | 2016-11-03 | 上海电科电器科技有限公司 | Secondary latch mechanism for operating mechanism of circuit breaker |
| WO2016173461A1 (en) * | 2015-04-28 | 2016-11-03 | 上海电科电器科技有限公司 | Operating mechanism of circuit breaker |
| US10199196B2 (en) | 2015-04-28 | 2019-02-05 | Seari Electric Technology Co., Ltd. | Two-level latch mechanism for operation mechanism of circuit breaker |
| US10256066B2 (en) | 2015-04-28 | 2019-04-09 | Seari Electric Technology Co., Ltd. | Operation mechanism of circuit breaker |
| RU2696014C2 (en) * | 2015-04-28 | 2019-07-30 | Сэари Электрик Технолоджи Ко., Лтд. | Two-stage mechanical interlocking mechanism for automatic circuit breaker actuator |
| RU2699389C2 (en) * | 2015-04-28 | 2019-09-05 | Сэари Электрик Технолоджи Ко., Лтд. | Actuator of automatic circuit breaker |
| CN109801816A (en) * | 2017-11-16 | 2019-05-24 | 三信国际电器上海有限公司 | The processing method and breaker of a kind of operating mechanism, operating mechanism |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |