CN201285744Y - Circuit breaker with quenching chamber - Google Patents
Circuit breaker with quenching chamber Download PDFInfo
- Publication number
- CN201285744Y CN201285744Y CNU2007201504523U CN200720150452U CN201285744Y CN 201285744 Y CN201285744 Y CN 201285744Y CN U2007201504523 U CNU2007201504523 U CN U2007201504523U CN 200720150452 U CN200720150452 U CN 200720150452U CN 201285744 Y CN201285744 Y CN 201285744Y
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- plate
- circuit breaker
- cut
- control device
- described circuit
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Abstract
A circuit breaker capable of connecting and disconnecting current comprises a current disconnecting device (11). The current disconnecting device (11) is provided with at least two contacts (17) and (18) and an arc extinguishing chamber (12); the contacts (17) and (18) can be contacted and non-contacted with each other; the arc extinguishing chamber (12) is used for extinguishing arcs formed when the fixed contact and the movable contact are separated from each other, and the arc extinguishing chamber (12) comprises a plurality of superimposed disconnecting plates (83) provided with central openings (85) at least partially limiting a free central space (84); and the free central space (84) is used for lifting electrical arcs formed when the fixed contact and the movable contact are separated from each other. The circuit breaker is characterized in that the central openings (85) of the superimposed disconnecting plates (83) are limited by edges which longitudinally comprise V-shaped end parts (93), and the V-shaped vertexes of the V-shaped end parts (93) point to the outer sides of the central openings (85) so as to attract the electrical arcs into any one disconnecting plate (83), therefore, well-developed electrical arcs in the arc extinguishing chamber (12) can be obtained, the well-developed electrical arcs can be easily divided into parts, and the current disconnecting capacity is improved.
Description
Technical field
The utility model relates to a kind of circuit breaker, allow to set up and cut off electric current, comprise failure of current device and arc control device with at least two contacts, these two contacts can contact each other and can each interval, these arc control device are positioned at the top of this failure of current device and are used for extinguish arcs when separating movable contact and fixed contact, these arc control device have a plurality of stacked cut-out plates, these cut off plates and have equipped the central opening that allows to limit at least in part a free central space, the electric arc that described free central space is used to demonstrate two contacts to be formed when separating.
Background technology
Some such circuit breakers are through being usually used in railway traction locomotive or supply of electrical energy station.Described circuit breaker produces the movable contact and the fixed contact of electric arc when comprising separately.Known described circuit breaker makes electric arc move in the free central space of arc control device, is divided into a plurality of part electric arcs so that they are extinguished at electric arc described in this free central space.
In known circuit breaker, electric arc keeps getting lodged in the inlet and free central space of arc control device usually, and not to the internal migration that cuts off plate, here electric arc is divided into a plurality of part electric arcs.Therefore when electric arc blocks, hinder and postponed extinguishing of electric arc.The cut-out ability of circuit breaker is therefore very weak.In addition, therefore the parts of shearing device and arc control device have been destroyed soon.
Summary of the invention
The utility model is intended to overcome above-mentioned defective.For this reason, the utility model proposes a kind of circuit breaker, allow to set up and cut off electric current, this circuit breaker comprises the failure of current device, this failure of current device has at least two contacts, they can contact with each other and can be separated from one another, with be arranged on this arc control device above failure of current device, these arc control device are used to extinguish the electric arc that forms when separately this moves with fixed contact, these arc control device comprise a plurality of stacked cut-out plates, described cut-out plate has been equipped the central opening that allows to have limited at least in part free central space, the rise of the electric arc that described free central space forms when being used for separating two contacts, it is characterized in that, the central opening that cuts off plate is edge limited by some, described edge comprises the end of some V-arrangements along the longitudinal direction, and the outside of central opening is pointed on the summit of V-arrangement, makes any one inside of electric arc suction in cutting off plate.
Because have the described character shape at edge of the central opening of shape end, electric arc is attracted to the cut-out intralamellar part, is divided into stacked part electric arc from electric arc here, thereby obtains therefore the extinguishing fast of electric arc improved the cut-out ability.The parts of this shearing device of Bao Chiing and arc control device have obtained the benefit of high life like this.
Best, the V-arrangement end comprises two branches, and they have formed predetermined angle, 60 the degree-120 the degree, be preferably in 75 the degree-105 the degree, preferably roughly 90 the degree.
Described feature allows to obtain therefore electric arc part electric arc especially effectively be very beneficial for the lifting of capacity for quenching.
In known circuit breaker, electric arc has taken place usually entered in the free central space of cutter only more difficultly, thereby caused the rapid damage of circuit breaker.The utility model solves above-mentioned defective during common purpose.This purpose is reached like this: the surface of central opening, and cut off plate from first of the most close failure of current device and reduce gradually, make free central space along with more and more wideer near this first cut-out plate.
Therefore, the free central space of these arc control device provides the wide opening that is used for electric arc, so electric arc can easily unhinderedly enter these arc control device.This free central space narrows down then gradually so that allow effectively extinguish arcs gradually.By described feature, obtained electric arc good improvement and obtained the cut-out ability of improving greatly in arc control device.In addition, the wearing and tearing of the parts of arc control device are significantly reduced, and postponed greatly shearing device the damage of parts.
Best, described first cuts off the central opening that plate has maximum surface, and described n-1 the opening that surface when being included in away from the first cut-out plate with the stacked cut-out plate of first plate reduces gradually is so that reach the cut-out plate of the central opening that comprises minimal surface, n is 3-40, best 5-20.
Best, these arc control device comprise m the cut-out plate stacked with the cut-out plate of the central opening with minimal surface, described m is cut off cut-out plate that plate is similar to described central opening with minimal surface so that the cylindrical volume of the central space that gains freedom, and m is 0-50, is preferably 8-25.
Described feature has guaranteed the optimization capacity for quenching of electric arc in arc control device, has therefore guaranteed very high cut-out ability.
Advantageously, the central opening of described cut-out plate has length measured along the longitudinal direction, and this length reduces when the stacked cut-out plate towards other cuts off plate away from first gradually.
The development of electric arc is therefore easier in arc control device.
Advantageously, this failure of current device is equipped with two pilot angles, they are arranged to and will guide in the arc control device from the electric arc of two contacts, first jiao is arranged near the fixed contact, second jiao of open position near movable contact, and first jiao has the guiding surface that is used for electric arc, this surface be parallel to the plane formation inclination angle that cuts off plate, this inclination angle is 15-60 degree, and best 20-40 degree very advantageously are 30 degree.
The particular form of this pilot angle allows the good guiding of electric arc in arc control device and passes through, and has therefore improved the cut-out ability of circuit breaker.
According to a favourable distortion, this second jiao comprises crooked plate, two side almost parallels of the plate that this is crooked, cross a screw that remains in this shearing device, the downside screw means with support that shearing device links to each other on, this screw comprises that is configured as an anterior openwork part that cooperates with tap wrench, and the upper side at this angle comprises and is used to the opening that allows tap wrench to pass through, so that cooperate with described anterior openwork part.
Described feature allows easily to install, dismantles and safeguards described angle, also need not pull down shearing device simultaneously.
Description of drawings
The specification that other advantage will describe in detail in the back from the accompanying drawing by the exemplary embodiment that illustrates and drawing, accompanying drawing comprises:
Fig. 1 is the end view of the circuit breaker of open position;
Fig. 2 shows the arc control device of the circuit breaker of decomposition;
Fig. 3 is the face upwarding view of arc control device; And
Figure 4 and 5 show the particularity of circuit breaker.
Embodiment
This circuit breaker has been equipped shielding frame 14, and preferably this shielding frame is the polymeric material that glass fibre is strengthened.
Main current circuit 15 comprises lower connecting rod 16 and upper connecting rod 17, and this lower connecting rod 16 cooperates with fixed contact 18, and this fixed contact 18 is connected with upper connecting rod 19 electric currents, and this movable contact 17 and fixed contact 18 have constituted main contact 20.
Installed first jiao 21 above the upper connecting rod 19, this first jiao 21 close fixed contact 19 is provided with and is electrically connected with this upper boom.Lower connecting rod 16 is electrically connected with second jiao 22, this second jiao 22 open position that is arranged on main contact 20 near movable contact 17.Described two pilot angles 21,22 are arranged to from movable contact and fixed contact electric arc be guided into these arc control device 12.
Fig. 1 shows the circuit breaker that is positioned at open position, movable contact 17 and fixed contact 18 biasings.In off-position, described movable contact and fixed contact 17 and 18 are in contact with one another.
Starting drive 24 is provided for movable contact 17 is moved and is used to keep described contact combination to fixed contact 18.
Main opening of contact 20 can be implemented by the disengaging gear 25 that acts on the starting drive 24, specifically sees after a while and describes.
This circuit breaker also comprises the auxiliary contact group 26 of closing or opening with this main contact 20.
This movable contact 17 comprises a cutter 30, and this cutter 30 thin slice under it has articulated mounting 31, and this articulated mounting 31 is connected to this cutter 30 on the lower connecting rod 16.Described articulated mounting is the rotating cylindrical type and cylinder ledge 32 comprise semi-circular cross-section in the bottom of cutter, this ledge 32 is arranged on the cylindrical groove 33 of the semi-circular cross-section with correspondingly-shaped and cross section, and this groove is arranged on the lower connecting rod 16 as support component.
One holding device 35 is set, is used for making this ledge 32 remain on groove 33 so that keep articulated mounting 31 in assembled state in this cutter 30 along the directive effect of lower connecting rod 16.
Therefore holding device comprises that sleeve pivot 36, this sleeve have the lateral axis 37 that the breach 38 that is used for and is arranged on lower beam 16 cooperates.This lower beam has the cavity 39 that is provided for holding this sleeve pivot.
Keep bar 40 to be slidingly mounted in the sleeve pivot 36 as strutting piece, carried the axle 41 that is used for being arranged on traction groove 42 on top, this traction groove 42 is arranged on the cutter 30.Keep bar 40 to equip a set screw 43 in the lower part, on this set screw 43, support a spring 44 by pad 45.This spring 44 also is supported on the sleeve pivot 36, allows this cutter 30 of directive effect to lower beam 16.In addition, act on this cutter and movable contact open position to main contact.
This sleeve pivot 36 control lever 48 that is articulated and connected, this control lever 48 allows to open or closes described auxiliary contact 26.
This starting drive 24 comprises and is used for the electromagnet 50 that drive controlling bar 51 overcomes the effect of returning spring 52.
Finger piece has lower surface 60 (Fig. 5), and this lower surface and upper surface 61 are separated by the 3rd surface 63 that is approximately perpendicular to two other surfaces, and the 3rd surface 63 is used for compressive surface.Therefore, when control lever 51 is shifted to the right side of Fig. 1, drive cutter 39 compressive surface by the off-position of pulley 54 to main contact.
In case main contact is activated,, perhaps there is not electric current ground, by starting drive 24 holding contact pressure because of the effect of permanent magnet because holding current is lowered.
Disengaging gear 25 comprises shelf or the armature 70 around this lower beam 16, and this shelf or armature 70 comprise fan-shaped opening, and core 71 has been installed in this fan-shaped opening with radially sliding.This core 71 is hinged with the lever 72 that is pivoted on the axle 73.When finger piece 53 was arranged in the position of throwing off with main contact, the free end of this lever can cooperate with finger piece 53.
The overload current that surpasses the maximum current regulated value in main circuit lifts core 71 slightly and makes lever 72 swings.This lever 72 promotes finger piece 60 to the bottom, therefore throws off movable contact 17.
That carries out when replacing overload current opens, main contact can also be opened by the suitable control signal of opening, and describedly suitable opens control signal by having cut off holding current or having applied reverse current pulses so that finger piece 60 is provided to the starting drive that Fig. 2 left side retreats.
Under spring 44 effects, movable contact 17 is opened and control lever 48 is thrown off auxiliary contact 26 combinations.
Circuit breaker comprises that first vibration absorber 76 and second vibration absorber, 77, the first vibration absorbers are used for cooperating with cutter 30 so that damping when opening procedure finishes, and second vibration absorber is used for this cutter of damping when setting up and cutting out main contact.
Described circuit breaker is worked as following when receiving the shutdown signal of unshowned control unit, and this starting drive 24 advances finger piece 60, and this finger piece 60 is closed main contact 20 by promoting cutter 30 by guide wheel 54.Keep bar 40 also to close auxiliary contact 26.Having compensated startup by second vibration absorber 77 impacts.
The main maintenance of contact 20 in its enable position is to realize by the holding current or the permanent magnet that reduce.
Opening by suitable of main contact 20 opened control or obtained by disengaging gear 25.In the situation of back, served as live when stream, in the shelf 70 of disengaging gear 25, form magnetic field, its movably core 71 be lifted so that pivot this lever 72.This lever 72 is pushed finger piece 53 to bottom, therefore by guide wheel 54 and finger piece 53 are thrown off, has discharged cutter 30.
Therefore spring 44 has pivoted cutter 30 so that open main contact 20 and auxiliary contact combinations (Fig. 6 C).Cushioned the impact of opening by first vibration absorber 76.In this position, guide wheel 54 is provided with and contacts with the upper surface 61 of finger piece 53.
When opening main contact 20, between the electric arc that produces between two contacts 17,18 is presented at two angles 21,22 in the arc control device 12, be separated by cutting off plate 78 then.Ionized gas is then by 79 neutralization of deionization plate.
These arc control device 12 are on described failure of current device and be used to extinguish the electric arc that produces when movable contact and fixed contact are separated.These arc control device are the roughly form of cuboid 80, have the rectangle bottom that defines the longitudinal direction 81 that is parallel to long side surface and perpendicular to the mid-plane 82 of longitudinal direction 81, this mid-plane is through the central authorities of arc control device.Longitudinal direction 81 is approximately perpendicular to the pivotal axis of the articulated mounting 31 of cutter 30.
These arc control device 12 comprise a plurality of stacked cut-out plates 83, and described cut-out plate is configured as the parallel at least free central space 84 that defines, the rising electric arc that this free central space 84 forms when being used to be received in movable contact and fixed contact 17,18 separations.
Each cuts off plate 83 and has therefore equipped a central opening 85, allows to limit at least abreast described free central space.According to the utility model, the surface of central opening 85 cuts off plates 83 from the first minimum cut-out plate 83a to other and reduces gradually, thereby described free central space 84 is more and more wideer when cutting off plate 83a near first.
On the contrary, this free central space 84 is more and more narrow when eminence is away from this first cut-out plate 83a.
Because free central space 84 is conical, therefore obtained electric arc and entered easily in the arc control device 12, therefore obtained improved cut-out ability.
With reference to Fig. 2 and 3, each cuts off plate 83 and in fact comprises two and half plates 83 ' and 83 that are separated from each other along mid-plane 82 ".
The deionization plate 86 that each cut-out plate 83 with two and half plates is had the plastic material of center window 87 supports.
Therefore, arc control device 12 are made of deionization plate 86 that replaces and cut-out plate 83.In the bottom, these arc control device 12 have bedplate 92, and this bedplate 92 defines this arc control device 12 with respect to failure of current device 11.
On last deionization plate, close this arc control device 12 by open plate 88.The combination of deionization plate, bedplate 92 and open plate 88 is installed on 6 threaded rods 89 and with some nuts 80,81 and is held in one.
Described cut-out plate 83 has the central opening 85 of geometry in particular, because these openings are edge limited by some, described edge has some V-arrangement ends 93 along the longitudinal direction.The outside of central opening is pointed on the summit of V-arrangement.Best, the V-arrangement end comprises two 93a of branch, 93b (Fig. 3), they have formed predetermined angle, 60 the degree-120 the degree, be preferably in 75 the degree-105 the degree, preferably roughly 90 the degree.Longitudinal direction 81 length measured along the central opening 85 that cuts off plate 83 are shorter than the length of the center window 87 of deionization plate 86.Therefore, the free central space of these arc control device 12 is limited by the V-arrangement that cuts off plate 83 along the longitudinal direction.
The width of central opening 85 that cuts off plate 83 is slightly less than the width of the center window 87 of deionization plate 86.Therefore, free central space 84 is along limiting perpendicular to the direction of longitudinal direction 81 longitudinal edge 95 by deionization plate 86.
Fig. 3 most clearly shows the opening 85 that cuts off plate 83 and has length measured along the longitudinal direction, and this length is along with reducing gradually away from lowermost cut-out plate towards other stacked cut-out plates.Described V-arrangement 93 offsets with respect to each towards the inside that cuts off plate, thereby central free space 84 is narrowed down gradually.
This first cut-out plate 83a has the central opening 85 on maximum surface.Described n-1 cut-out plate that is stacked on the first cut-out plate has the opening that reduces the surface gradually, so that in abutting connection with the cut-out plate 83g that contains the opening of minimal surface.In the embodiment show in figure 3, n equals 7.And for some distortion, n can be chosen as 3-40, best 5-20.
Other being stacked in of these arc control device has on the cut-out plate 83g of minimal surface opening m and cuts off plate and be similar to the latter.Therefore obtained being stacked in the cylindrical volume 84b of the free central space on the volume 84a that narrows down gradually.In the embodiment show in figure 3, m equals 12.But for some distortion, m is chosen as 0-50, best 7-25.
The cut-out plate 83 on level and vertical plane and the special shape of free central space 84 allow to avoid electric arc still to get lodged in the porch of arc path.On the contrary, electric arc can be discharged in the arc control device with not hindering.Therefore obtain the good development of the electric arc in arc control device and obtained the good capacity of cutting off, allowed to reduce the wearing and tearing of arc control device simultaneously.
Because should cut off the V-arrangement of the central opening 85 of plate 83, the electric arc of the rising in free central space 84 is along 93a of branch that cuts off plate 83 or 93b orientation, thereby arrived the summit of V-arrangement, thereby be attracted to the inside that cuts off plate at this electric arc and be separated into a plurality of part electric arcs, thereby obtained to extinguish fast.
With reference to Fig. 1, very positive result is reinforced, and has and is used for the inclined lead surface 100 that cooperates with electric arc because be arranged near the fixed contact 18 pilot angles 21.This guiding surface 100 be parallel to the horizontal plane formation inclined angle alpha of cutting off plate 83.This angle α be 15-60 the degree, preferred 20-40 the degree, preferably roughly 30 the degree.
Special shape according to this pilot angle 21 and its guiding surface 100 has obtained electric arc and has well entered in the arc control device 12, has therefore improved the cut-out ability of circuit breaker.
Comprise crooked metallic plate 102 for second jiao 22, two side 103,108 almost parallels of this metallic plate 102.
Certainly, the above embodiments do not have any determinate feature, but can carry out any any change in claim 1 scope.Especially, this failure of current device 11 can have any other structure.
Cut-out plate and deionization plate can have other number.
Free central space 84 can roughly narrow down apace along with the rising in arc control device.The shape of central opening 85 can be different, ellipse, polygon or the like.The height of cylindrical volume 84b and the volume 84a that narrows down can be different.Cutting off plate 83 can be formed by unique plate, replaces two and half plates.
Installation and maintenance to the deionization plate can differently be realized, for example realizes by support frame.
According to the embodiment that simplifies, free central space 84 can have the cylindrical shape on whole length, rather than conical, and in its bottom, each cuts off plate and also comprises the V-arrangement end.
Claims (16)
1. circuit breaker, allow to set up and cut off electric current, this circuit breaker comprises failure of current device (11), this failure of current device (11) has at least two contacts (17,18), they can contact with each other and can be separated from one another, with the arc control device (12) that are arranged on above this failure of current device (11), these arc control device (12) are used to extinguish the electric arc that forms when separately this moves with fixed contact, these arc control device (12) comprise a plurality of stacked cut-out plates (83), described cut-out plate (83) has been equipped the central opening (85) that allows to have limited at least in part free central space (84), the rise of the electric arc that described free central space (84) forms when being used for separating two contacts, it is characterized in that, the central opening (85) of described cut-out plate (83) is edge limited by some, described edge comprises some V-arrangement ends (93) along the longitudinal direction, and the outside of central opening (85) is pointed on the summit of V-arrangement, thereby attracts electric arc any one inside in cutting off plate.
2. by the described circuit breaker of claim 1, it is characterized in that described V-arrangement end (93) comprises that (93a, 93b), they have formed predetermined angle, are 60-120 degree in two branches.
3. by the described circuit breaker of claim 2, it is characterized in that described predetermined angle is 75-105 degree.
4. by the described circuit breaker of claim 3, it is characterized in that described predetermined angle is 90 degree.
5. by the described circuit breaker of claim 1, it is characterized in that, the surface area of central opening (85) cuts off plate (83a) from first of the most close failure of current device (11) and reduces gradually, and is more and more wideer thereby free central space (84) is cut off plate (83a) along with close described first.
6. by the described circuit breaker of claim 5, it is characterized in that, described first cuts off the central opening (85) that plate (83a) has maximum surface area, the opening that the surface reduced gradually when n-1 cut-out plate individual and that first plate is stacked was included in away from the first cut-out plate, so that reach the cut-out plate (83g) of the central opening that comprises that minimal surface is long-pending, n is 3-40.
7. by the described circuit breaker of claim 6, it is characterized in that n is 5-20.
8. by the described circuit breaker of claim 6, it is characterized in that, these arc control device (12) comprise m and the stacked cut-out plate of cut-out plate (83g) with central opening that minimal surface amasss, described m is cut off cut-out plate that plate is similar to described central opening with minimal surface so that the cylindrical volume of the central space that gains freedom, and m is 0-50.
9. by the described circuit breaker of claim 8, it is characterized in that m is 8-25.
10. by the described circuit breaker of claim 6, it is characterized in that the central opening (85) of described cut-out plate (83) has along the longitudinal direction (81) length measured, this length reduces when the stacked cut-out plate towards other cuts off plate away from first gradually.
11. by the described circuit breaker of claim 1, it is characterized in that described arc control device (12) comprise a plurality of deionization plates (86) with center window (87), described deionization plate (86) is provided for keeping described cut-out plate (83).
12., it is characterized in that each cuts off plate (83) and comprises two and half plates that are separated from each other along the mid-plane (82) of these arc control device (12) (83 ' and 83 ") by the described circuit breaker of claim 1.
13. by the described circuit breaker of claim 1, it is characterized in that, this failure of current device (11) is equipped with two pilot angles (21,22), they are arranged to from two contacts (17,18) electric arc is guided in the arc control device (12), first jiao (21) are arranged near the fixed contact (18), second jiao (22) are near the open position of movable contact (17), first jiao (21) have the guiding surface (100) that is used for electric arc, this surface forms inclination angle (α) with being parallel to the plane that cuts off plate (83), and this inclination angle (α) is 15-60 degree.
14., it is characterized in that this inclination angle (α) is 20-40 degree by the described circuit breaker of claim 13.
15., it is characterized in that this inclination angle (α) is 30 degree by the described circuit breaker of claim 14.
16. by the described circuit breaker of claim 13, it is characterized in that, these second jiao (22) comprise crooked plate (102), two side almost parallels of the plate that this is crooked, by a screw (105) that remains in this shearing device, downside (103) screw means with support (104) that shearing device (11) links to each other on, this screw (105) comprises that is configured as an anterior openwork part (106) that cooperates with tap wrench (107), the upper side at this angle (108) comprises and is used to the opening (109) that allows tap wrench (107) to pass through, so that cooperate with described anterior openwork part (106).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201504523U CN201285744Y (en) | 2007-03-30 | 2007-03-30 | Circuit breaker with quenching chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201504523U CN201285744Y (en) | 2007-03-30 | 2007-03-30 | Circuit breaker with quenching chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201285744Y true CN201285744Y (en) | 2009-08-05 |
Family
ID=40950725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201504523U Expired - Lifetime CN201285744Y (en) | 2007-03-30 | 2007-03-30 | Circuit breaker with quenching chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201285744Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762041A (en) * | 2016-05-17 | 2016-07-13 | 浙江人民电器有限公司 | Arc extinguishing structure of direct current circuit breaker |
| CN105762042A (en) * | 2016-05-17 | 2016-07-13 | 浙江人民电器有限公司 | Direct current circuit breaker |
| CN105788986A (en) * | 2016-05-17 | 2016-07-20 | 浙江人民电器有限公司 | Arc extinguishing device for direct current breakers |
| CN105788987A (en) * | 2016-05-17 | 2016-07-20 | 浙江人民电器有限公司 | Easy-breaking direct current breaker |
-
2007
- 2007-03-30 CN CNU2007201504523U patent/CN201285744Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762041A (en) * | 2016-05-17 | 2016-07-13 | 浙江人民电器有限公司 | Arc extinguishing structure of direct current circuit breaker |
| CN105762042A (en) * | 2016-05-17 | 2016-07-13 | 浙江人民电器有限公司 | Direct current circuit breaker |
| CN105788986A (en) * | 2016-05-17 | 2016-07-20 | 浙江人民电器有限公司 | Arc extinguishing device for direct current breakers |
| CN105788987A (en) * | 2016-05-17 | 2016-07-20 | 浙江人民电器有限公司 | Easy-breaking direct current breaker |
| WO2017198166A1 (en) * | 2016-05-17 | 2017-11-23 | 浙江人民电器有限公司 | Arc extinguishing structure for direct-current circuit breaker |
| CN105788987B (en) * | 2016-05-17 | 2018-01-09 | 浙江人民电器有限公司 | A kind of easily disjunction dc circuit breaker |
| US10418217B2 (en) | 2016-05-17 | 2019-09-17 | Zhejiang People Ele. Appliance Co., Ltd. | Arc extinguishing structure for direct current circuit breaker |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CU01 | Correction of utility model patent |
Correction item: Inventor Correct: Duffour Henri False: H. Chanful Number: 31 Page: The title page Volume: 25 |
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| CU03 | Correction of utility model patent gazette |
Correction item: Inventor Correct: Duffour Henri False: H. Chanful Number: 31 Page: 770 Volume: 25 |
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| ERR | Gazette correction |
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