CN101339866A - Circuit breaker having tripping indication function - Google Patents
Circuit breaker having tripping indication function Download PDFInfo
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- CN101339866A CN101339866A CNA2008100219263A CN200810021926A CN101339866A CN 101339866 A CN101339866 A CN 101339866A CN A2008100219263 A CNA2008100219263 A CN A2008100219263A CN 200810021926 A CN200810021926 A CN 200810021926A CN 101339866 A CN101339866 A CN 101339866A
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Abstract
A breaker with the functions of disengaging and indicating belongs to the technical field of the breaker and comprises a shell which is provided with a watch window on the surface as well as a stripper arranged inside the shell; a display unit is arranged at the back of the shell, and the display unit is corresponding to and matched with the stripper; the breaker is characterized in that the shell is provided with a hitching leg in an extending way, the display unit comprises at least one indicating dial and a resetting element of the indicating dial, the indicating dial is pivoted at the hitching leg and is corresponding to the watch window, and the resetting element of the indicating dial is contacted with the indicating dial. The breaker has the advantages of ensuring the structure of the original stripper not to be changed and the whole volume of the breaker not to be enlarged, and being beneficial to helping the operator to know whether the stripper is in a state of disengaging release or disengaging by the watch window of the display unit; furthermore, as the display unit is arranged below the watch window and hides the watch window, the dust and foreign matter can be effectively prevented from entering into the breaker, and the safety is guaranteed; the display unit can ensure the user to accurately judge the fault types of tripping operation of the breaker.
Description
Technical field
The invention belongs to breaker technical field, be specifically related to a kind of circuit breaker with tripping indication function.
Background technology
Circuit breaker is realized required protective feature by release is installed, and release mainly contains these several forms of electronic type trip gear, heat and/or magnetic trip gear, and heat and/or magnetic trip gear are because its application stable and reliable for performance is very extensive.Thermal release device is used for realizing overload protection, and its major function element is a bimetal leaf; The magnetic trip gear is used for realizing short-circuit protection, and its major function element is an electromagnetic mechanism.In order to satisfy user's special needs, producer also can provide some inner auxiliaries to realize threading off when release is installed.
Be equipped with the release of thermal release device that overload protection function is only arranged separately, industry claims that this circuit breaker is the circuit breaker with overload protection function; Be equipped with the release of magnetic trip gear that short-circuit protection function is only arranged separately, industry claims that this circuit breaker is the circuit breaker with short-circuit protection function; Dispose the release of thermal release device and magnetic trip gear simultaneously, industry claims that this circuit breaker is the circuit breaker with overload and short-circuit protection function.The circuit breaker of above-mentioned three kinds of forms all generally uses in prior art.
Fig. 1 has illustrated the structure of release of circuit breaker of the third form also mentioned above promptly in the prior art.When circuit was in normal condition, tripping 1 was pulled bar 2 and hooks, and the thermo magnetic trip release device is in the button state; Yet, when the loop current in the circuit breaker during greater than circuit breaker overload rating current setting value, generate heat and flexural deformation as the effect of the bimetal leaf 5 of the function element of the thermal release device heat that miscarriage gives birth to that powered on by joint cover, promote draw bar 2 by the screw on the bimetal leaf 5 51 (also claiming push piece), draw bar 2 is turned clockwise around axle 4, thereby draw bar 2 and tripping 1 are separated, and then make tripping 1 under the effect of back-moving spring to being rotated counterclockwise, impact or claim and hit the snap close that does not give the circuit breaker operation mechanism that illustrates in the drawings, make circuit breaker trip.When the loop current in the circuit breaker during greater than the rated short circuit current set point of circuit breaker, drive coupking shaft 3 by electromagnetic mechanism and produce rotation as the function element of magnetic trip gear, coupking shaft 3 promotes draw bar 2, draw bar 2 is turned clockwise, thereby draw bar 2 and tripping 1 are separated, so ground, tripping 3 under the effect of back-moving spring to being rotated counterclockwise, hit the snap close of unshowned circuit breaker operation mechanism in the drawings, make circuit breaker trip.
By above-mentioned explanation to Fig. 1 as can be known, the operator can't examine the tripping of knowing heat and/or magnetic release intuitively and be in button actually and still be in trip status, that is to say that heat and/or magnetic release do not have tripping indication function, and manual or some auxiliaries also can make circuit breaker trip.Therefore after circuit breaker trips, because release does not have tripping indication function, the operator can't judge trip reason (as overload trip, short circuit tripping operation, manually tripping operation or auxiliary tripping operation), thereby can't the failure judgement type, and giving in time fixes a breakdown causes difficulty.
Perhaps based on above-mentioned condition, Chinese invention patent publication number CN1819096A recommends to have a kind of Thermomagnetic type release and dropout reason indicating device thereof.By Fig. 1 of this patent application and Fig. 2 and as can be known in conjunction with the description of the 5th page of the 2nd～28 row of specification, indicating device is directly to be arranged in the tripping, rotation by tripping comes to show that the dropout reason is a trip reason, uses for the operator and holds in the watch window (also can claim inspection hole) that the Shell of circuit breaker surface is offered.Although the technical scheme of this patent application is at having the overload and the circuit breaker of short-circuit protection dual-use function, yet its design philosophy is equally applicable to only have the circuit breaker of overload protection or short-circuit protection function.
Probe into and find through the applicant, the structural design of above-mentioned CN1819096A still has shortcoming, the first: when the tripping of thermal release device and/or magnetic trip gear is in fastening promptly at the button state, because the space between the observation window on tripping and the surface of shell is bigger, watch window has no to block, in case the trifle in the world foreign matter is invaded, just can cause release to be difficult to even can't thread off, cause serious accident; It two is: under normal conditions, operating mechanism false tripping for fear of circuit breaker, therefore, the tripping of thermal release device and magnetic trip gear must possess the bigger anglec of rotation, yet, because of tripping and release, release all has the strict requirement that cooperates with the operating mechanism of circuit breaker, it is far away from cover that this requirement mainly shows as the installation site, so, if make the indicating device that directly is arranged in the tripping be stretched over watch window place corresponding to surface of shell, the size of indicating device must be enough big so, and so, the tripping of the tripping of thermal release device and magnetic trip gear needs to take bigger space in the motion process of threading off, thereby can increase the volume of circuit breaker inevitably, be unfavorable for that the overall volume of circuit breaker is complied with the trend that the present miniaturization of being pursued develops.
Summary of the invention
Top priority of the present invention is to provide a kind of trifle in the world foreign matter that can prevent effectively to invade release from watch window, can avoid increasing the overall volume of circuit breaker again, and the tripping of can also the handled easily person observing release is in the circuit breaker with tripping indication function of button or trip status.
A present invention also task is to provide a kind of operator of helping to examine exactly and knows the circuit breaker with tripping indication function of fault type.
Top priority of the present invention is finished like this, a kind of circuit breaker with tripping indication function, it comprises that the surface offers the housing of watch window and is installed in the interior release of housing, the back side of described housing is provided with and is used for observing the display unit whether described release is in trip status for the operator, described display unit is corresponding with described release and cooperatively interact, it is characterized in that: extended hanging feet on the described housing, described display unit comprises at least one indicating dial and is used for providing the indicating dial return unit of reset force to indicating dial, indicating dial is hubbed on the hanging feet and is corresponding with watch window, the indicating dial return unit contacts with indicating dial, wherein: the quantity of indicating dial return unit is consistent with the quantity of indicating dial, on the rim of indicating dial, constitute and be used for providing first of distinctive information to described watch window, second mark zone is useful on the push arm that matches with described release and extend below indicating dial.
Indicating dial return unit of the present invention is and the coaxial mounted torsion spring of indicating dial, and a torsion spring pin of this torsion spring is kept out on the hanging feet flange of described hanging feet, and another torsion spring pin of torsion spring is kept out on the inwall of described indicating dial.
The back side of housing of the present invention and respectively extend one around corresponding to described watch window and be used for the arcwall face of fitting mutually with described indicating dial.
First, second mark zone of the present invention is provided with the color that differs from one another, and the color on first mark zone is green, and the color on second mark zone is red.。
The rim of indicating dial of the present invention is provided with a positioning tab, and described positioning tab contacts with the back side of housing when indicating dial resets.
An also task of the present invention is finished like this, the quantity of described indicating dial is one, described release comprises thermal release device, thermal release device comprises first draw bar and first tripping, first draw bar is installed in first rotating shaft, and first tripping is installed in second rotating shaft, and first draw bar and first tripping cooperatively interact, and first tripping also matches with described indicating dial.
An also task of the present invention is finished like this, the quantity of described indicating dial is one, described release comprises the magnetic trip gear, the magnetic trip gear comprises second draw bar and second tripping, second draw bar is installed in first rotating shaft, and second tripping is installed in second rotating shaft, and second draw bar and second tripping cooperatively interact, and second tripping also matches with described indicating dial.
An also task of the present invention is finished like this, the quantity of described indicating dial is two, described release comprises thermal release device and magnetic trip gear, thermal release device comprises first draw bar and first tripping, and the magnetic trip gear comprises second draw bar and second tripping, first, second draw bar is coaxially installed in first rotating shaft, first, second tripping is installed in second rotating shaft jointly, first draw bar and first tripping cooperatively interact, and first tripping also matches with one of them indicating dial in described two indicating dials, second draw bar and second tripping cooperatively interact, and second tripping also matches with another indicating dial in described two indicating dials.
The present invention is owing to be provided with display unit corresponding with release and that match in the original space of keeping somewhere between the back side of the housing of circuit breaker and release, both guaranteed not change the structure of original release, guaranteed the unlikely expansion of overall volume of circuit breaker again, also help the operator to understand release by means of watch window and be in button or trip status by display unit, and because display unit is blocked watch window below watch window, help more preventing that the trifle in the world foreign matter from entering circuit breaker inside, ensure safety; Display unit can make the operator accurately hold the tripping operation fault type of circuit breaker.
Description of drawings
Fig. 1 is the structural representation of the circuit breaker in the prior art.
Fig. 2 has the first embodiment schematic diagram of the circuit breaker of tripping indication function for the present invention.
Fig. 3 has the second embodiment schematic diagram of the circuit breaker of tripping indication function for the present invention.
Fig. 4 is the schematic rear view of housing of the present invention.
Embodiment
For make your auditor particularly the public can be well understood to structure essence of the present invention and beneficial effect thereof more, the spy reaches embodiment in conjunction with the accompanying drawings the specific embodiment of the present invention is described in detail as follows.
Embodiment 1:
Please consult Fig. 2, provide a kind of circuit breaker with tripping indication function, this kind circuit breaker comprises that the surface offers the housing 6 of watch window 61 and the release 7 that promptly is encapsulated in the housing 6 is installed.Described release 7 only comprises thermal release device 71, that is to say that circuit breaker shows as the circuit breaker with overload protection function.The structure of the thermal release device 71 that provides is identical with prior art, comprise first draw bar 711 and first tripping 712, first draw bar 711 is located in first rotating shaft 73 rotationally, first tripping 712 is located in second rotating shaft 74 rotationally, and first draw bar 711 and first tripping 712 cooperatively interact, and having illustrated first draw bar 711 and cooperating of first tripping 712 to show as at button among the figure is buckling state.
Be provided with display unit 8 at the back side of housing 6 and at position corresponding to described watch window 61; because the applicant has done to explain in the above; be that circuit breaker is the circuit breaker that has overload protection function; that is to say that 7 of releases have a kind of defencive function; therefore, recommend preferred of applicant but 8 needs one covers of the non-display unit that is limited to.This cover display unit 8 comprises indicating dial 82 and indicating dial return unit 81.In order to be provided with for indicating dial 82, on housing 6, more particularly extend a pair of hanging feet 62 at the back side of housing 6, shown in figure, this to hanging feet 62 each other with parastate ground and with cantilever form receive back on the surface of housing 6, the surface of alleged here housing 6 can be understood as the cap of housing 6, and a pair of hanging feet 62 and watch window 61 adjacency, promptly corresponding to the position of watch window 61, that is to say that watch window 61 occupy between a pair of hanging feet 62, respectively offer one first pin shaft hole 622 on the hanging feet flange 621 of the lower end of a pair of hanging feet 62, this position to first pin shaft hole 622 keeps corresponding.In the present embodiment, do not need to limit for the concrete shape of hanging feet 62, it can have various variations.The central authorities of indicating dial 82 offer one second pin shaft hole 824, penetrate successively in first, second pin shaft hole 622,824 by bearing pin 825, just indicating dial 82 can be hubbed on a pair of hanging feet 62, the alleged here notion that is pivoted is meant that indicating dial 82 is arranged on a pair of hanging feet 62 rotationally.The applicant need to prove, present embodiment is set to the restriction that form on a pair of hanging feet 62 is not subjected to graphic form with indicating dial 82, that is to say, do not use bearing pin 825 indicating dial 82 can be set on the hanging feet 62 equally, for example respectively extend an axle ear, the axle ear is presented in first pin shaft hole 622 just as the door-hinge form in the corresponding both sides at the middle part of indicating dial 82.
Ask for an interview Fig. 4 and continuation in conjunction with Fig. 2, the upper surface of indicating dial 82 is an arc surface, this arc surface fits with the arcwall face 63 that forms in housing 6 back sides and be positioned at around the watch window 61, the upper surface of the indicating dial of being said here 82 is meant that face that has first, second mark zone 821,822 on the indicating dial 82, i.e. the rim of indicating dial 82.By shown in Figure 2, on the rim of indicating dial 82, constitute first, second mark zone 821,822, first, second mark zone 821,822 respectively accounts for 1/2nd of rim arc length scope on the rim, in direct or indirect mode different colors is set respectively on first, second mark zone 821,822, wherein, the color of first mark zone 821 is green, and the color of second mark zone 822 is red.The connotation that direct or indirect mode above-mentioned is provided with is: red, green two kinds of colors are brushed on first, second mark zone 821,822 in the mode of mopping respectively, and this mode is direct setting; The self-adhesive paper or the similar paper of green are pasted on first mark zone 821, and the self-adhesive paper of redness is pasted on second mark zone 822, this mode is indirect setting, and in the present embodiment, the applicant selects the former.Also be provided with a positioning tab 826 on the rim of indicating dial 82, the effect of this positioning tab 826 is in the process that indicating dial resets, and helps the position that indicating dial 82 stops to be positioned.On indicating dial 82, also extended a push arm 823, can know from illustrated instruction, this push arm 823 is used for corresponding with release 7 and cooperatively interacts, and in the present embodiment, this push arm 823 obviously is to be used for matching with first tripping 712 as the thermal release device 71 of release 7.Location status with current icon, because first draw bar 711 and first tripping 712 show as at the button state, therefore, under the effect of indicating dial return unit 81, indicating dial 82 is rotated counterclockwise, the positioning tab 826 of the right rim of indicating dial contacts with housing 6 after rotating to an angle, indicating dial 82 stops the rotation under the stopping of housing 6, first mark zone 821 on the indicating dial 82 is corresponding to watch window 61 at this moment, following watch window 61 can see green by the operator, and the operator knows that the suggested state of circuit breaker is " at button ".The indicating dial return unit 81 preferred torsion springs that use, the middle part is nested with on bearing pin 825, if there is not bearing pin 825, be nested with so extend on the indicating dial 82 also be already mentioned above just as the door-hinge form the axle ear on, one of them torsion spring pin of torsion spring is kept out on hanging feet flange 621, and another torsion spring pin is kept out on the inwall of indicating dial 82.
When overload appears in loop current, when circuit breaker need be threaded off, first draw bar 711 of thermal release device 71 is subjected to the effect that not shown trigger equipment is the screw on the bimetal leaf of mentioning in the background technology, make first draw bar 711 do the clockwise direction rotation, first draw bar 711 and first tripping 712 are removed to fasten, the unshowned in the drawings but effect back-moving spring that can be understood according to known technology example CN1819096A as mentioned above of first tripping 712 is rotated counterclockwise down, contact with the push arm 823 of described indicating dial 82 after rotating to an angle, and drive indicating dial 82 makes it towards turning clockwise, when first tripping 712 is hit on the unshowned in the drawings operating mechanism and during stop motion, indicating dial 82 is also static thereupon, second mark zone 822 on the indicating dial 82 corresponds to watch window 61 at this moment, the operator can see redness from watch window 61, thereby knows that the suggested state of circuit breaker is " dropout ".
Work as trouble shooting, circuit breaker recovers when button, be that first draw bar 711 of thermal release device 71 of release 7 and first tripping 712 are when keeping lock-out state once more, indicating dial 82 is replied under the effect of indicating dial return unit 81, at this moment, it is shown in red to observe second mark zone 822 by watch window 61, and the suggested state of circuit breaker is " at a button ".
Since whole display unit 8 be provided with the position utilized dexterously original just exist promptly remained in space between housing 6 and the release 7 originally, therefore, not only can not cause the overall volume of circuit breaker to become big, and the below of watch window 61 has indicating dial 8 to cover all the time, sealed watch window 61, can stop foreign matter to enter circuit breaker effectively release 7 is constituted a threat to from watch window 61.
In the above; though the applicant is that release 7 only comprises that the circuit breaker of thermal release device 71 describes in detail to the circuit breaker with overload protection function; but according to the reason of drawing inferences about other cases from one instance; those of ordinary skill in the field is appreciated that fully; when circuit breaker is that circuit breaker with short-circuit protection function is that release 7 is when only comprising the circuit breaker of magnetic trip gear 72; reason is to communicate with the description of embodiment 1 so; so; the applicant no longer gives unnecessary details with embodiment individually again, but will explain orally when describing embodiment 2.
Embodiment 2:
Please consult Fig. 3, the release 7 of this kind circuit breaker comprises the thermal release device 71 described among the embodiment 1 and the following magnetic trip gear of will emphasis describing 72.Owing to have heat, magnetic trip gear 71,72, so display unit 8 just has two covers, and promptly the quantity of display unit 8 has two, and the structure of two display unit 8 is identical with mounting means.In this case, suggestion adopts a pair of bearing pin 825 that a pair of display unit 8 is installed on respectively on each hanging feet 62, if insist on abandoning bearing pin 825, can realize installing by setting up a hanging feet 62 so, promptly have three hanging feets 62, specifically be respectively to extend one in the corresponding both sides at the middle part of each indicating dial 82, a pair of indicating dial 82 be pivoted on three hanging feets 62 by pivot just as the pivot as the door-hinge.In addition, the length of watch window 61 shown in Figure 3 promptly must be long than watch window shown in Figure 2 61 than embodiment 1, certainly, also can adopt a pair of watch window 61, one of them watch window 61 is used for first, second mark zone 821,822 of an indicating dial 82 on the left side shown in the observation figure, and another watch window 61 is used to watch first, second mark zone 821,822 of the indicating dial 82 in the right shown in the figure.
Second draw bar 721 as magnetic trip gear 72 is installed in first rotating shaft 73, promptly with the 711 coaxial installations of first draw bar; Second tripping 722 as magnetic trip gear 72 is installed in second rotating shaft 74, advises that second rotating shaft 74 is the rotating shaft of a pair of concentric.Second draw bar 721 and second tripping 722 cooperatively interact, and second tripping 722 also matches with the indicating dial 82 of the indicating device 8 on the left side, are example with present shown position, and second draw bar 721 shows as with second tripping 722 and is interlocked.
According to this Fig. 3, the left side is a magnetic trip gear 72, and the right is a thermal release device 71, because of the applicant is described the operation principle of thermal release device 71 in the above, therefore here only the magnetic trip gear 72 on the left side is described.When circuit breaker is in the button state, because second draw bar 721 and second tripping 722 show as sealed (deciding) state, the indicating dial 82 of the display unit 8 on the left side is under the effect of indicating dial return unit 83 and positioning tab, make first mark zone 821 on the indicating dial 82 corresponding to watch window 61, show green, show that the suggested state of circuit breaker is " at button ".When the loop current in the circuit breaker during greater than the rated short circuit current set point of circuit breaker, do not give in the drawings illustrate but can rely on those of skill in the art's general professional knowledge to be known fully or the electromagnetic mechanism of the function element of the magnetic trip gear that obtains fully understanding by aforesaid CN1819096A drives time, second draw bar 721 is produced to turn clockwise, second draw bar 721 and second tripping 722 are removed to fasten, second tripping 722 is rotated counterclockwise under the effect of back-moving spring (not shown), second tripping 722 and then drive or title hit the push arm 823 of described indicating dial 82, make indicating dial 82 towards turning clockwise, second mark zone 822 on the indicating dial 82 corresponds to watch window 61, the operator can see redness from watch window 61, thereby know that the suggested state of circuit breaker is " dropout ", and know it is by the caused circuit breaker trip of short trouble.
After the unshorting fault, when circuit breaker recovers " at button ", be that second draw bar 721 of magnetic trip gear 72 of release 7 and second tripping 722 are when keeping lock-out state once more, indicating dial 82 is replied under the effect of indicating dial return unit 83, at this moment, can see that by watch window 61 second mark zone 822 is shown in green, the suggested state of circuit breaker is " at a button ".
As shown in the above description, in case first draw bar 711 of the thermal release device 71 on the right and first tripping, 712 releases (disengagement), first tripping 712 is hit indicating dial 82 in the snap close of the operating mechanism that hits circuit breaker to move towards the operating mechanism direction of circuit breaker counterclockwise under the effect of back-moving spring, make first mark zone 821 on the indicating dial 82 show red at watch window 61, the staff concludes that thus the tripping operation of circuit breaker is because of the caused circuit breaker trip of overload fault, because failure cause is accurately bright and clear, brings convenience for fixing a breakdown.
Claims (8)
1, a kind of circuit breaker with tripping indication function, it comprises that the surface offers the housing of watch window (61) (6) and is installed in the interior release (7) of housing (6), the back side of described housing (6) is provided with and is used for observing the display unit (8) whether described release (7) is in trip status for the operator, described display unit (8) is corresponding with described release (7) and cooperatively interact, it is characterized in that: extended hanging feet (62) on the described housing (6), described display unit (8) comprises at least one indicating dial (82) and is used for providing the indicating dial return unit (81) of reset force to indicating dial (82), it is last and corresponding with watch window (61) that indicating dial (82) is hubbed on hanging feet (62), indicating dial return unit (81) contacts with indicating dial (82), wherein: the quantity of indicating dial return unit (81) is consistent with the quantity of indicating dial (82), on the rim of indicating dial (82), constitute and be used for providing first of distinctive information to described watch window (61), second mark zone (821,822) extend, and in the below of indicating dial (82) and to be useful on the push arm (823) that matches with described release (7).
2, the circuit breaker with tripping indication function according to claim 1, it is characterized in that described indicating dial return unit (81) is and the coaxial mounted torsion spring of indicating dial, a torsion spring pin of this torsion spring is kept out on the hanging feet flange (621) of described hanging feet (62), and another torsion spring pin of torsion spring is kept out on the inwall of described indicating dial (82).
3, the circuit breaker with tripping indication function according to claim 1 is characterized in that the back side of described housing (6) and respectively extends one around corresponding to described watch window (61) being used for and arcwall face (63) that described indicating dial (82) is mutually fitted.
4, the circuit breaker with tripping indication function according to claim 1, it is characterized in that described first, second mark zone (821,822) is provided with the color that differs from one another, color on first mark zone (821) is green, and the color on second mark zone (822) is red.。
5, the circuit breaker with tripping indication function according to claim 1, the rim that it is characterized in that described indicating dial (82) is provided with a positioning tab (826), and described positioning tab (826) contacts with the back side of housing (6) when resetting at indicating dial (82).
6, the circuit breaker with tripping indication function according to claim 1, the quantity that it is characterized in that described indicating dial (82) is one, described release (7) comprises thermal release device (71), thermal release device (71) comprises first draw bar (711) and first tripping (712), first draw bar (711) is installed in first rotating shaft (73), and first tripping (712) is installed in second rotating shaft (74), first draw bar (711) cooperatively interacts with first tripping (712), and first tripping (712) also matches with described indicating dial (82).
7, the circuit breaker with tripping indication function according to claim 1, the quantity that it is characterized in that described indicating dial (82) is one, described release (7) comprises magnetic trip gear (72), magnetic trip gear (72) comprises second draw bar (721) and second tripping (722), second draw bar (721) is installed in first rotating shaft (73), and second tripping (722) is installed in second rotating shaft (74), second draw bar (721) cooperatively interacts with second tripping (722), and second tripping (722) also matches with described indicating dial (82).
8, circuit breaker with tripping indication function according to claim 1, the quantity that it is characterized in that described indicating dial (82) is two, described release (7) comprises thermal release device (71) and magnetic trip gear (72), thermal release device (71) comprises first draw bar (711) and first tripping (712), and magnetic trip gear (72) comprises second draw bar (721) and second tripping (722), first, second draw bar (711,721) be coaxially installed in first rotating shaft (73), first, second tripping (712,722) be installed in jointly in second rotating shaft (74), first draw bar (711) cooperatively interacts with first tripping (712), and first tripping (712) also matches with one of them indicating dial (82) in described two indicating dials (82), second draw bar (721) and second tripping (722) cooperatively interact, and second tripping (722) also matches with another indicating dial (82) in described two indicating dials (82).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100219263A CN101339866A (en) | 2008-08-08 | 2008-08-08 | Circuit breaker having tripping indication function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100219263A CN101339866A (en) | 2008-08-08 | 2008-08-08 | Circuit breaker having tripping indication function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101339866A true CN101339866A (en) | 2009-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100219263A Pending CN101339866A (en) | 2008-08-08 | 2008-08-08 | Circuit breaker having tripping indication function |
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| CN (1) | CN101339866A (en) |
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| CN103456577A (en) * | 2012-05-30 | 2013-12-18 | 施耐德电器工业公司 | Thermal magnetic release and circuit breaker |
| CN104137215A (en) * | 2012-02-28 | 2014-11-05 | 西门子公司 | Circuit breaker thermal-magnetic trip units and methods |
| CN104252998A (en) * | 2013-06-25 | 2014-12-31 | 施耐德电器工业公司 | Tripping indicating device for circuit breaker and circuit breaker |
| WO2017000865A1 (en) * | 2015-06-30 | 2017-01-05 | 上海电科电器科技有限公司 | Indication device of electric switch |
| CN108511278A (en) * | 2017-02-24 | 2018-09-07 | 上海良信电器股份有限公司 | The circuit breaker operation mechanism of function is indicated with divide-shut brake |
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- 2008-08-08 CN CNA2008100219263A patent/CN101339866A/en active Pending
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| CN104137215A (en) * | 2012-02-28 | 2014-11-05 | 西门子公司 | Circuit breaker thermal-magnetic trip units and methods |
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| CN103311057B (en) * | 2012-03-08 | 2017-06-06 | 西门子公司 | For the short-circuit alarm modules and the switchgear of electricity of the switchgear of electricity |
| CN103311057A (en) * | 2012-03-08 | 2013-09-18 | 西门子公司 | Short circuit indicator module for an electrical switching device and electrical switching device |
| CN103456577B (en) * | 2012-05-30 | 2015-12-23 | 施耐德电器工业公司 | Pyromagnetic release and circuit breaker |
| CN103456577A (en) * | 2012-05-30 | 2013-12-18 | 施耐德电器工业公司 | Thermal magnetic release and circuit breaker |
| CN104252998A (en) * | 2013-06-25 | 2014-12-31 | 施耐德电器工业公司 | Tripping indicating device for circuit breaker and circuit breaker |
| CN104252998B (en) * | 2013-06-25 | 2016-08-10 | 施耐德电器工业公司 | Tripping indicating device and chopper for chopper |
| WO2017000865A1 (en) * | 2015-06-30 | 2017-01-05 | 上海电科电器科技有限公司 | Indication device of electric switch |
| CN106328402A (en) * | 2015-06-30 | 2017-01-11 | 上海电科电器科技有限公司 | Indicating device of electrical appliance switch |
| US10242813B2 (en) | 2015-06-30 | 2019-03-26 | Seari Electric Technology Co., Ltd. | Indication device of electric switch |
| CN108511278A (en) * | 2017-02-24 | 2018-09-07 | 上海良信电器股份有限公司 | The circuit breaker operation mechanism of function is indicated with divide-shut brake |
| CN108511278B (en) * | 2017-02-24 | 2019-10-11 | 上海良信电器股份有限公司 | Circuit breaker operation mechanism with divide-shut brake instruction function |
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