CN201918327U - Accessory device for indicating fault state of circuit breaker - Google Patents
Accessory device for indicating fault state of circuit breaker Download PDFInfo
- Publication number
- CN201918327U CN201918327U CN2010206754781U CN201020675478U CN201918327U CN 201918327 U CN201918327 U CN 201918327U CN 2010206754781 U CN2010206754781 U CN 2010206754781U CN 201020675478 U CN201020675478 U CN 201020675478U CN 201918327 U CN201918327 U CN 201918327U
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- CN
- China
- Prior art keywords
- circuit breaker
- auxiliary equipment
- housing
- indication
- drive rod
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- Expired - Lifetime
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Abstract
An accessory device for indicating the fault state of a circuit breaker comprises a casing formed by oppositely fastening two half casings, wherein the outer lateral surface of one half casing is clamped to one outer lateral surface of a circuit breaker casing in a tightly attached manner; each driving rod is provided with a linkage rod portion which penetrates through the lateral surface and is connected with a circuit breaker operating mechanism; the top of the casing is provided with two notches; and the driving rod is positioned under a transparent cover in one notch at the top of the casing. When the circuit breaker has an over-current fault, a color indicating surface on a driving part is opposite to the exactly lower side of the transparent cover of the casing. The top of a short-circuit fault indicating part is provided with a color indicating cap capable of extending out of the upper surface of the short-circuit fault indicating part from the other notch. A spring is sleeved outside a body, and the longitudinal height of the short-circuit fault indicating part body is compressed by the acting force of the driving rod in linkage with the operating mechanism applying on the spring. When the circuit breaker has a short-circuit fault, the body is released to the maximum height. The accessory device is simple in design and space-saving, and not only can indicate the fault state of the circuit breaker, but also can indicate fault types.
Description
Technical field
The utility model relates to a kind of auxiliary equipment that cooperates circuit breaker to use, be particularly related to a kind of auxiliary equipment that fault alarm and indication can be provided when circuit breaker breaks down, and this this cognition of auxiliary equipment further provides the indication of distinguishing fault type (overcurrent, short circuit etc.).Auxiliary equipment of the present utility model also is applicable in starter or the circuit breaker failure signal contact.
Background technology
Low-voltage circuit breaker is that universal (ACB) or moulded case circuit breaker (MCCB and some MCB) all possess various inside and outside auxiliary equipments (claiming annex again) now, to increase the function of circuit breaker.People's custom will can provide the auxiliary equipment of fault alarm and indication to abbreviate fault annex or alarm switch as when circuit breaker breaks down, it belongs to a kind of contents of circuit breaker, its purposes is to monitor the operating state of circuit breaker or survey its fault (overcurrent, short circuit etc.), be used for reporting to the police and reflecting the circuit breaker failure state, to be convenient for people to maintenance because of line fault (overload, short circuit) tripping operation connection sound, light.When circuit breaker broke down, this fault auxiliary equipment provided failure alarm signal, and indicates on device body.When short circuit current was come, this auxiliary equipment provided the short circuit indication.
The scheme of the solution fault alarm of the fault annex that present people in the art are familiar with and short circuit indication generally has two kinds, scheme one is with fault alarm annex and short trouble annex split production, its advantage is when circuit breaker needs the fault alarm annex, the fault alarm annex can be installed separately, and when circuit breaker needs the short trouble annex, the short trouble annex can be installed separately, when needing these two kinds of fault annexes simultaneously, also can combine installation.The shortcoming of this scheme is the many and complex structure of part.Scheme two is that fault alarm annex and short trouble annex are combined, but they are made in two different the insides, shell chamber of housing respectively.No matter scheme one or scheme two, when needs fault alarm and short circuit deixis, the width of auxiliary equipment will increase.
The utility model content
The purpose of this utility model is to overcome the defective of prior art, a kind of circuit breaker auxiliary equipment that is used for indicating fault status is provided, only need a modulus, just can realize fault alarm, faulty indication and short circuit indication, and can further provide the indication of distinguishing fault type from the auxiliary equipment body, simplicity of design not only, reliable in structure, and saved the required space of servicing unit greatly.
To achieve these goals, the utility model has adopted following technical scheme.
Be used to indicate the auxiliary equipment of circuit breaker failure state, comprise drive link 3 and a plurality of drive rod 4 handled by the operating mechanism of circuit breaker 1,7,11, be connected with two moving contacts 9,10 on the described drive link 3, they and two fixed contacts 8,12 form the bridging contact of two corresponding matching work to 9,8; 10,12, described two fixed contacts 8,12 are electrically connected with each corresponding wiring terminal 13 that is positioned at described auxiliary equipment both sides.Described auxiliary equipment 2 is by two and half shells 14, the housing B that 15 opposed fastenings form constitutes, the lateral surface of half shell 14 of the housing B of described auxiliary equipment 2 is close to the lateral surface clamping of the housing A of described circuit breaker 1 and is installed, described each drive rod 4,7,11 all have the described installed surface of half shell 14 that stretches out housing B and can pass the bar part that the described installed surface of housing A is connected with the operating mechanism of circuit breaker 1, so that drive rod 4,7,11 with the interlock of the operating mechanism of circuit breaker 1, and drive drive link 3 make the contact to 9,8 and the contact be in two kinds of closed and disconnecteds inverse state each other to 10,12.The top of the housing B of described auxiliary equipment 2 is provided with two breach 16,17, a transparency cover 6 is provided with on the described breach 17, described drive rod 7 is arranged on the below of described breach 17, a surface on it is the faulty indication face, and this faulty indication face can arrive and rest on position under the transparency cover 6 that is exposed to described housing B with the interlock of described actuator 7 and circuit breaker 1 operating mechanism.Top have the short trouble indication piece 5 of indicating cap be arranged on described breach 16 under, the outer surface of described indication cap is the short trouble index plane, the body of described short trouble indication piece 5 is with spring outward, the effect that vertically highly is subjected to described drive rod 4 with the operating mechanism interlock to be applied to described spring of its body is compressed, when spring discharges, then be elongated to the maximum vertically height of body, and make the indication cap at its top stretch out outside the described breach 16 and be higher than the upper surface of the housing B of auxiliary equipment 2.
4,7,11, two contacts of described drive link 3 and a plurality of drive rod are to 9,8; 10,12 and binding post and short trouble indication piece 5 be installed in the cavity that two and half shells, 14, the 15 opposed fastenings by the housing B of described auxiliary equipment 2 form.
The short trouble index plane of the indication cap outer surface of described short trouble indication piece 5 is colored.Faulty indication face on the described actuator 7 is colored.
One end of described drive rod 4 is installed on the described housing B by an axle, and can rotate around this axle, and an other end and 5 interlocks of short trouble indicating arm are fixed.
A wherein end of described drive rod 11 is installed on the described housing B by an axle, and can rotate around this axle, and an other end is connected to driving member 3.
The diameter of described breach 17 can slide up and down in described breach 17 to allow this indication cap greater than the external diameter of the indication cap of described short trouble indication piece 5.
Description of drawings
Can clearerly find out other advantages of the present utility model and feature from following in conjunction with the accompanying drawings to the detailed description of only doing as non-limitative example, wherein:
Fig. 1 is the front view of half shell 14 of the utility model auxiliary equipment 2 on the housing A that is installed in circuit breaker 1 one sides of having fitted, is the faulty indication state shown in the figure.
Fig. 2 is the vertical view of the housing B of auxiliary equipment 2 of the present utility model, is that half shell 14,15 has fastened the all-in-one-piece state relatively shown in the figure.
Embodiment
Embodiment below in conjunction with shown in the accompanying drawing 1 to 2 further describes the auxiliary equipment that is used to refer to the circuit breaker failure state of the present utility model.
In Fig. 1, accompanying drawing sign 1 expression circuit breaker, sign 2 expression auxiliary equipments, the housing B integral body of auxiliary equipment 2 is arranged on the transverse side of housing A one side external surface of circuit breaker 1, and housing B constitutes (referring to Fig. 2) by two half shells 14,15 that can snap together relatively.Fig. 1 only illustrates the front view of half shell 14 on the lateral surface of the housing A that is close to circuit breaker 1 of housing B of auxiliary equipment 2 of the present utility model, and half shell 14 of auxiliary equipment 2 has been fitted and has been installed on the housing A of circuit breaker 1 one sides among the figure.Normal, the fault of auxiliary equipment 2 corresponding circuit breakers and three kinds of operating modes of short trouble comprise normally, fault and three kinds of indicating status of short trouble is the faulty indication state shown in Fig. 1.
Basic structure in the housing B of auxiliary equipment 2 is described below in conjunction with Fig. 1, Fig. 2.The drive link of accompanying drawing sign 3 expression circuit breaker operation mechanisms, accompanying drawing sign 4,7,11 is represented the drive rod of circuit breaker operation mechanism respectively, all has the bar part (referring to Fig. 2) of stretching out housing B on each drive rod, accompanying drawing sign 16,17 are illustrated in the breach on the housing B, 6 expressions are arranged on the transparency cover in the breach 17 at auxiliary equipment 2 tops, transparency cover 6 is installed in the breach 17 that forms on housing 14 and 15, and the transparency cover in the breach 17 6 be positioned at drive rod 7 the color index plane directly over, be used for faulty indication.Short trouble indicating arm 5 is positioned at the breach 16 at auxiliary equipment 2 tops, and breach 16 allows the color indication cap of short trouble indication piece 5 from wherein stretching out, be used for the short trouble indication, the external diameter of short trouble indication piece 5 tops indication cap should can slide up and down it less than the diameter of breach 16 in breach 16.By breach 16 and 17, make operating personnel from transparency cover 6, can see the color index plane and the location status of seeing short trouble indication piece 5 indication caps of drive rod 7. Accompanying drawing sign 8,9,10,12 each fault contact of expression, be example with the bridge-type double-contact among Fig. 1, wherein contact 9 and 8 is that the contact of a pair of dynamic and static cooperating is right, contact 10 and 12 is that the contact of a pair of dynamic and static cooperating is right, the binding post used of the some connection fault contact of 13 expressions, the every pair of fault contact 8,9 and 10,12 is electrically connected with respective terminal 13 of housing B both sides respectively.As can be seen from Figure 1, comprise drive rod 4,7,11 and the drive link of handling by circuit breaker operation mechanism 3 in the housing B of the auxiliary equipment 2 that is used to refer to the circuit breaker failure state of the present utility model, one end of drive rod 4 is installed on the housing B by an axle, and can rotate around this axle, an other end and 5 interlocks of short trouble indicating arm are fixed.A wherein end of drive rod 11 is installed on the housing B by an axle, and can rotate around this axle, but driving member 3 is given in an other end power transmission.Connect two pairs of dynamic and static fault contact 8,9 and 10,12 on the drive link 3, and be provided with spring in drive link 3 frameworks the insides, connect drive link 3 and these fault contact 8,9 and 10,12 with spring, make circuit breaker operation mechanism drive drive link 3 and realize that with described fault contact 8,9,10,12 elasticity is connected, its benefit has 2 points, the firstth, when dynamic/static contact is closed, but freedom and flexibility are sought best contact point, guarantee the contact resistance minimum.Second provides certain contact terminate pressure, and contact resistance is diminished.The end face of auxiliary equipment 2 as shown in Figure 1 is arc surfaces.A part of surface under be positioned in the transparency cover 6 of drive rod 7 is coated with chromatic colour, as the color index plane of faulty indication.Short trouble indicating arm 5 is made of indication cap and outside upper and lower two parts of body that are with spring that outer surface has the obvious color feature, vertical height of its body can be compressed under spring action, spring then reaches its maximum height when discharging, at this moment, the colour at short trouble indicating arm 5 tops indication cap can reach outside the breach 16 of housing B, and apparently higher than the upper surface of housing B.So, operating personnel can monitor whether circuit breaker 1 exists over current fault by transparency cover 6, and the indication cap location status by short trouble indication piece 5, further whether resolution exists short trouble, thereby provides the indication information of clearly distinguishing the circuit breaker failure type for operating personnel.
Referring to Fig. 2 the installation process of auxiliary equipment 2 is described, half shell 14 of auxiliary equipment 2 respectively has a pawl with the two ends of the side surface that the housing A outer surface of circuit breaker 1 is fitted, and is extended with a plurality of bar and hold-down hooks that are connected with circuit breaker 1 from its half shell, 14 sides.During installation, the bar part of each drive rod and drive link is connected with circuit breaker operation mechanism respectively, two claws of binding face two bottom sides that will be positioned at half shell 14 of annex 2 are put into the inside, corresponding claw hole of installation binding face of housing A one side of circuit breaker 1 earlier, and pin button on the binding face of half shell 14 that is arranged on annex, the housing A that enters circuit breaker 1 when the hook that has on the button goes up in the button hole of correspondence position, being formed on the housing A that another one hook on the binding face of half shell 14 of annex also enters circuit breaker 1 simultaneously goes up in the ditch hole of correspondence position, release button, auxiliary equipment 2 installs.
Referring to vertical view shown in Figure 2, comprise two opposed housing parts 14,15 on the housing B of auxiliary equipment 2, their opposed adaptedly mutually being installed together form an integral cavity.Drive rod 4,7,11 is installed in respectively on the described housing parts 14, and drive link 3 also is installed on the housing parts 14.On each drive rod with drive link on the bar part of stretching out from housing B stretch into respectively that the housing A of circuit breaker 1 is inner to be connected with the operating mechanism of circuit breaker 1 so that link with operating mechanism.At normal, fault and three states of short trouble of circuit breaker 1, the part of operating mechanism all has different actions, and they are handled by the operating mechanism of circuit breaker 1 and also carry out different actions.During operate as normal, operating mechanism drives drive rod 11 and rotates, and drive rod 11 drives drive link 3 and moves upward, and this moment, auxiliary equipment was in the operate as normal indicating status.When running into fault, the operating mechanism of circuit breaker 1 discharges drive rod 11, then drive link 3 by moving under the spring band trend, drive link 3 moves downward and also presses drive rod 7, can see the color face of drive rod 7 this moment from breach 17.When running into short trouble, not only auxiliary equipment 2 indicating fault status, and the operating mechanism of circuit breaker 1 drive drive rod 4 rotations, thereby discharge short trouble indication piece 5, and short trouble indication piece 5 can eject certain length.
Below in conjunction with Fig. 1 and 2, further describe the operation principle of circuit breaker failure indicating device of the present utility model.
When circuit breaker 1 operate as normal, the drive rod 11 of servicing unit 2 is subjected to the moment loading of circuit breaker 1 operating mechanism, being rotated counterclockwise drive drive link 3 up moves, the mobile bridge- type fault contact 10 and 12 that makes of drive link 3 disconnects, and make bridge-type fault contact 9 and 8 closures, meanwhile, the part-structure of drive rod 7 enters the gap position of drive link 3, owing to be subjected to the spring force effect, the colored index plane of drive rod 7 is hided in half shell, 15 this sides and is arrived such position, on this position, operating personnel can't see the color index plane of drive rod 7 by transparency cover 6.And this moment, short trouble indicating arm 5 was subjected to the interlock locking of drive rod 4 one ends, and it vertically highly is subjected to length of spring compressed, also can't eject most of length, and promptly auxiliary equipment shows that circuit breaker is in normal condition.
When breaking down, the active force that the drive rod 11 of servicing unit 2 is subjected to circuit breaker 1 operating mechanism is released, drive link 3 is subjected to the effect of spring force and down moves, push down drive rod 7, and the while circuit breaker operation mechanism is pressed the rod end that stretches out of drive rod 7, drive rod 7 is subjected to the power of operating mechanism and spring force effect and will pushes down with drive link 3 and locally rotate as fulcrum, and then arrive such position, on this position, operating personnel can see the color index plane of the drive rod 7 that exposes by transparency cover 6, show faulty indication.Fault contact 10 and 12 closures simultaneously, top fault contact 9 and 8 disconnects, and failure alarm signal is provided.
When short trouble occurring, servicing unit 2 is except above-mentioned action, drive rod 4 is subjected to the effect of circuit breaker 1 operating mechanism power, turn clockwise, and then release short trouble indicating arm 5, short trouble indicating arm 5 up ejects most of length, so its colored indication cap stretches out outside the breach 16 of case top, shows short trouble.When the fault of circuit breaker appearance was not short trouble, then short trouble indicating arm 5 can not eject most of length.Therefore, the utility model provides a kind of servicing unit that conveniently is used to indicate the circuit breaker failure state of simplicity of design, and can further provide the indication of distinguishing fault type from the auxiliary equipment body.
The utility model never is limited to the foregoing description that only illustrates as an example certainly.On the contrary, the utility model has comprised all technical equivalents thing and the combination thereof of stating device, as long as these combinations meet spirit of the present utility model.
Claims (8)
1. be used to indicate the auxiliary equipment of circuit breaker failure state, comprise a drive link (3) and a plurality of drive rod (4 handled by the operating mechanism of circuit breaker (1), 7,11), be connected with two moving contacts (9,10) on the described drive link (3), they and two fixed contacts (8,12) form the bridging contact of two corresponding matching work to (9,8; 10,12), described two fixed contacts (8,12) are electrically connected with each corresponding wiring terminal (13) that is positioned at described auxiliary equipment both sides, it is characterized in that:
Described auxiliary equipment (2) is by two and half shells (14,15) housing (B) of opposed fastening formation constitutes, the lateral surface of half shell (14) of the housing (B) of described auxiliary equipment (2) is close to a lateral surface clamping of the housing (A) of described circuit breaker (1) and is installed, described each drive rod (4,7,11) the described installed surface that all has half shell (14) that stretches out housing (B) also can pass the bar part that the described installed surface of housing (A) is connected with the operating mechanism of circuit breaker (1), so that drive rod (4,7,11) operating mechanism with circuit breaker (1) links, and driving drive link (3) makes the contact to (9,8) and the contact (10,12) are in two kinds of closed and disconnecteds inverse state each other;
The top of the housing (B) of described auxiliary equipment (2) is provided with two breach (16,17), a transparency cover (6) is provided with on the described breach (17), described drive rod (7) is arranged on the below of described breach (17), a surface on it is the faulty indication face, and this faulty indication face can arrive and rest on position under the transparency cover (6) that is exposed to described housing (B) with the interlock of described actuator (7) and circuit breaker (1) operating mechanism;
Top have the short trouble indication piece (5) of indicating cap be arranged on described breach (16) under, the outer surface of described indication cap is the short trouble index plane, the body of described short trouble indication piece (5) is with spring outward, the effect that vertically highly is subjected to described drive rod (4) with the operating mechanism interlock to be applied to described spring of its body is compressed, when spring discharges, then be elongated to the maximum vertically height of body, and make the indication cap at its top stretch out outside the described breach (16) and be higher than the upper surface of the housing (B) of auxiliary equipment (2).
2. auxiliary equipment according to claim 1 is characterized in that: described drive link (3) and a plurality of drive rod (4,7,11), two contacts are to (9,8; 10,12) and binding post and short trouble indication piece (5) be installed in the cavity that the opposed fastening of two and half shells (14,15) by the housing (B) of described auxiliary equipment (2) forms.
3. auxiliary equipment according to claim 1 is characterized in that: drive link (3) is provided with spring, realizes connecting with the elasticity of two moving contacts (9,10) by spring.
4. auxiliary equipment according to claim 1 is characterized in that: the short trouble index plane of the indication cap outer surface of described short trouble indication piece (5) is for colored.
5. auxiliary equipment according to claim 1 is characterized in that: an end of described drive rod (4) is installed on the described housing (B) by an axle, and can rotate around this axle, and an other end and short trouble indicating arm (5) interlock are fixed.
6. auxiliary equipment according to claim 1 is characterized in that: a wherein end of described drive rod (11) is installed on the described housing (B) by an axle, and can rotate around this axle, and an other end is connected to driving member (3).
7. according to claim 1 or 4 described auxiliary equipments, it is characterized in that: the diameter of described breach (17) can slide up and down in described breach (17) to allow this indication cap greater than the external diameter of the indication cap of described short trouble indication piece (5).
8. auxiliary equipment according to claim 1 is characterized in that: the faulty indication face on the described actuator (7) is for colored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206754781U CN201918327U (en) | 2010-12-22 | 2010-12-22 | Accessory device for indicating fault state of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206754781U CN201918327U (en) | 2010-12-22 | 2010-12-22 | Accessory device for indicating fault state of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201918327U true CN201918327U (en) | 2011-08-03 |
Family
ID=44418119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206754781U Expired - Lifetime CN201918327U (en) | 2010-12-22 | 2010-12-22 | Accessory device for indicating fault state of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201918327U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618889A (en) * | 2013-11-21 | 2014-03-05 | 广东电网公司电力科学研究院 | Digital intermediate frequency module used for satellite television signal monitoring system |
| CN103915297A (en) * | 2014-03-25 | 2014-07-09 | 上海诺雅克电气有限公司 | Circuit breaker with failure indication function |
| CN105070600A (en) * | 2015-07-28 | 2015-11-18 | 上海电科电器科技有限公司 | Circuit breaker failure state indicating device |
| CN107665796A (en) * | 2016-07-28 | 2018-02-06 | 浙江正泰电器股份有限公司 | The link gear of breaker and its auxiliary contact |
-
2010
- 2010-12-22 CN CN2010206754781U patent/CN201918327U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618889A (en) * | 2013-11-21 | 2014-03-05 | 广东电网公司电力科学研究院 | Digital intermediate frequency module used for satellite television signal monitoring system |
| CN103915297A (en) * | 2014-03-25 | 2014-07-09 | 上海诺雅克电气有限公司 | Circuit breaker with failure indication function |
| CN103915297B (en) * | 2014-03-25 | 2016-10-05 | 上海诺雅克电气有限公司 | There is the chopper of indicating fault |
| CN105070600A (en) * | 2015-07-28 | 2015-11-18 | 上海电科电器科技有限公司 | Circuit breaker failure state indicating device |
| WO2017016364A1 (en) * | 2015-07-28 | 2017-02-02 | 上海电科电器科技有限公司 | Failure state indication device for circuit breaker |
| US10262827B2 (en) | 2015-07-28 | 2019-04-16 | Seari Electric Technology Co., Ltd. | Fault state indication device for circuit breaker |
| CN107665796A (en) * | 2016-07-28 | 2018-02-06 | 浙江正泰电器股份有限公司 | The link gear of breaker and its auxiliary contact |
| CN107665796B (en) * | 2016-07-28 | 2019-12-06 | 浙江正泰电器股份有限公司 | Linkage mechanism of circuit breaker and auxiliary contact thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110803 |
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| CX01 | Expiry of patent term |