CN114464507A - Double-breakpoint contact rotating device and circuit breaker - Google Patents
Double-breakpoint contact rotating device and circuit breaker Download PDFInfo
- Publication number
- CN114464507A CN114464507A CN202210105898.3A CN202210105898A CN114464507A CN 114464507 A CN114464507 A CN 114464507A CN 202210105898 A CN202210105898 A CN 202210105898A CN 114464507 A CN114464507 A CN 114464507A
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- Prior art keywords
- contact
- contact assembly
- double
- assembly
- rods
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
Abstract
The invention provides a double-breakpoint contact rotating device and a circuit breaker. The double-breakpoint contact rotating device comprises a rotating shaft, a contact assembly, a positioning shaft, two connecting rods, two connecting shafts and an elastic connecting member, wherein the two connecting rods are respectively arranged on two sides of the contact assembly; the elastic connecting component can change the force application direction of the two connecting rods to the contact assembly when the contact assembly starts to rotate in the rotating shaft, so that the separation speed of the contact assembly is accelerated; and in the rotating process of the contact assembly, the force application direction of the two connecting rods to the contact assembly is changed again, so that the contact assembly is kept in a repulsive clamping state. The double-breakpoint contact rotating device provided by the invention realizes the change of the stress direction of the contact assembly in the rotating process, effectively solves the risk of the contact assembly falling back, improves the breaking performance of a circuit breaker using the double-breakpoint contact rotating device, and reduces the production cost of the circuit breaker.
Description
Technical Field
The invention relates to a double-breakpoint contact rotating device and a circuit breaker applying the same, and belongs to the field of electrical switches.
Background
At present, a rotating shaft part of the double-breakpoint circuit breaker comprises a moving contact, a rotating shaft, a connecting rod, a spring and the like, the rotating shaft is driven to rotate by a rod piece on an operating mechanism, and the moving contact and the static contact are separated and combined by the rotation of the rotating shaft. When a circuit in which the circuit breaker is located generates short-circuit current, electric repulsion force can be generated between the moving contact and the static contact, and when the electric repulsion force is large enough, the moving contact and the static contact can be separated, so that electric arcs are generated. The generation of electric arc can burn the movable and static contacts, and can lead to explosion in severe cases.
The problems of the existing product are as follows: 1. along with the reduction of short-circuit current, the electric repulsion force also diminishes, at the moment that the mechanism has not finished tripping action, the moving contact can fall back, arcing again between the moving contact and the static contact can be caused, and the service life of the switch and the breaking performance of the circuit breaker are seriously influenced. 2. Along with the increase of action number of times, the burning loss imbalance can appear in two contacts of double break point, also can seriously influence circuit breaker temperature rise and circuit breaker life-span. 3. The existing scheme is damping clamping, and along with the increase of clamping times, a clamping part can be seriously deformed or damaged, so that clamping failure is caused. 4. The existing scheme clamping mechanism is either 4 springs or a torsion spring, and is complex in assembly and poor in assembly manufacturability.
In view of the above, it is necessary to provide a new dual-breakpoint contact rotating device to solve the above problems.
Disclosure of Invention
The invention aims to provide a double-breakpoint contact rotating device and a circuit breaker applying the double-breakpoint contact rotating device, which change the stress direction of a contact assembly in the rotating process is realized by utilizing a connecting rod and an elastic connecting member, ensure that the contact assembly can be reliably clamped, improve the clamping reliability and clamping times of the contact assembly when the contact assembly is positioned at a breaking position, effectively solve the risk of falling back of the contact assembly, improve the breaking performance of the circuit breaker using the double-breakpoint contact rotating device and reduce the production cost of the circuit breaker.
In order to achieve the purpose, the invention provides a double-breakpoint contact rotating device which comprises a rotating shaft, a contact assembly, a positioning shaft, two connecting rods, two connecting shafts and an elastic connecting member, wherein the positioning shaft is used for connecting the contact assembly to the center of the rotating shaft in a rotating manner; the elastic connecting component can change the force application direction of the two connecting rods to the contact assembly when the contact assembly starts to rotate in the rotating shaft, so that the separation speed of the contact assembly is accelerated; and in the rotating process of the contact assembly, the force application direction of the two connecting rods to the contact assembly is changed again, so that the contact assembly is kept in a repulsive and clamped state.
As a further improvement of the present invention, the rotating shaft includes an accommodating cavity for accommodating the contact assembly and a long kidney-shaped hole disposed on the rotating shaft and corresponding to the two connecting shafts.
As a further improvement of the present invention, two ends of the contact assembly extend beyond the accommodating cavity, the contact assembly has a switching-on position and a switching-off position, and when the contact assembly is switched between the switching-on position and the switching-off position, the connecting shaft is driven by the connecting rod to slide in the long kidney-shaped hole.
As a further improvement of the present invention, the double-breakpoint contact rotation device further includes a fixed shaft, the connecting rod includes a first through hole and a second through hole disposed at both ends in an extending direction thereof, and the fixed shaft penetrates through the contact assembly and the first through hole to rotatably fix the connecting rod on the contact assembly; the connecting shaft penetrates through the second through hole and extends from the long kidney-shaped hole to the rotating shaft so as to be connected with at least one elastic connecting component.
As a further improvement of the present invention, the contact assembly is rotationally symmetrical, the contact assembly includes a plurality of contact rods and two contact points disposed at two ends of the extension of the contact rods, and the two connecting rods are clamped between the contact rods.
As a further improvement of the invention, the contact rods are provided with through holes for accommodating the connecting rods to pass through, the contact rods are matched and installed to form two rotationally symmetrical clamping grooves, and the through holes are positioned at the sides of the clamping grooves.
As a further improvement of the invention, two grooves are correspondingly arranged on the rotating shaft, and the grooves are arranged along the radial extension direction of the rotating shaft.
As a further improvement of the invention, a long waist-shaped hole for accommodating the connecting shaft to slide is arranged on the groove, and the extending direction of the long waist-shaped hole is the same as the extending direction of the groove.
As a further improvement of the present invention, the elastic connection member is a spring, and the spring is housed in the groove.
In order to achieve the above object, the present invention further provides a circuit breaker, which includes a fixed contact, and further includes a movable contact device disposed corresponding to the fixed contact, and the movable contact device is the aforementioned double-breakpoint contact rotating device.
The invention has the beneficial effects that:
1. through the elastic connecting component connected with the contact assembly shaft, the position of the contact assembly is limited through the elastic connecting component in the rotating process of the contact assembly, the contact assembly is repelled and clamped, and the assembly manufacturability of a product is improved.
2. The elastic connecting component can apply pulling force and/or pushing force to the contact assembly when the contact assembly rotates, so that the contact assembly is kept at the clamping position, and the clamping reliability and the clamping times of the double-breakpoint contact rotating device are improved.
3. The contact assembly is formed by stacking a plurality of contact rods, so that the heat dissipation area of the contact assembly is effectively increased, and the temperature rise of the circuit breaker using the double-breakpoint contact rotating device is reduced.
4. The contact assembly is rotationally symmetrical, the problem that the rotation of the contact assembly connected with the double contacts is unbalanced is effectively solved, and the service life of the circuit breaker is prolonged while the temperature rise of the circuit breaker using the double-breakpoint contact rotating device is reduced.
Drawings
Fig. 1 is a perspective view of a dual break point contact rotation apparatus of the present invention with the contact assembly removed.
Fig. 2 is a perspective view of the contact assembly of fig. 1.
Fig. 3 is a perspective view of the contact assembly of fig. 1 in combination with a beam structure.
Fig. 4 is a perspective view of the connecting rod of fig. 2.
Fig. 5 is a schematic view of another angle of the rotating shaft in fig. 1.
Fig. 6 is a schematic structural diagram of the double-breakpoint contact rotating device in the switching-on position.
Fig. 7 is a schematic diagram of the double break contact rotating apparatus of the present invention in an intermediate position.
Fig. 8 is a schematic structural diagram of the double-breakpoint contact rotating device in the opening position.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not closely related to the present invention are omitted.
In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1 to 6, a double-breakpoint contact rotating device according to the present invention is shown. The double-breakpoint contact rotating device comprises a rotating shaft 1, a contact assembly 2, a rod structure connected between the rotating shaft 1 and the contact assembly 2 and used for realizing relative rotation between the contact assembly 2 and the rotating shaft 1, a positioning shaft 6 used for rotatably connecting the contact assembly 2 to the center of the rotating shaft 1, and an elastic connecting member 5 connected between the rod assembly and the contact assembly 2.
The rotating shaft 1 is used for bearing the contact assembly 2, in the invention, the rotating shaft 1 is arranged in a cylindrical shape, the rotating shaft 1 is provided with an accommodating cavity 11 for accommodating the contact assembly 2, and the accommodating cavity 11 is formed by sinking the side wall of the rotating shaft 1 to the inside.
The contact assembly 2 is arranged in a rotational symmetry manner, and the contact assembly 2 comprises a contact rod 21 and two contact points 22 arranged at two extending ends of the contact rod 21. Specifically, the feeler lever 21 is provided with a plurality of simultaneously, and a plurality of feeler levers 21 range upon range of setting to effectively increase contact assembly 2's heat radiating area, and effectively reduce the temperature rise of the circuit breaker that uses this double breakpoint contact rotary device. In the invention, at least 2 contact rods 21 are provided, a plane for connecting the contacts 22 is formed at the extending end parts of two stacked contact rods 21, the two contacts 22 are connected on the plane, the contact rods 21 are also provided with through holes 23 for receiving the rod structures to pass through, the contact rods 21 are matched and installed to form two rotationally symmetrical clamping grooves 24, and the through holes 23 are positioned at the side of the clamping grooves 24.
The two ends of the contact assembly 2 extend beyond the accommodating cavity 11, the positioning shaft 6 penetrates through the center of the contact rod 21, the center of the contact rod 21 is provided with a positioning hole 25 for accommodating the positioning shaft 6 to penetrate through, the contact assembly 2 is rotatably connected in the accommodating cavity 11 through the matching of the positioning shaft 6 and the positioning hole 25, the axis of the positioning shaft 6 coincides with the axis of the rotating shaft 1, and further, the contact assembly 2 rotates by taking the positioning shaft 6 as the shaft, so that the contact assembly 2 has a switching-on position 101, a switching-off position 103 and an intermediate position between the switching-on position 101 and the switching-off position 103. It should be noted that, in the present invention, only 2 contact rods 21 are illustrated, and in other embodiments of the present invention, other numbers of contact rods 21 may be provided at the same time.
The rod structure comprises two connecting rods 3 respectively arranged at two sides of the contact assembly 2, two fixed shafts 7 used for connecting the connecting rods 3 and the contact assembly 2, and two connecting shafts 4 respectively penetrating through the rotating shaft 1 and the two connecting rods 3. The connecting rod 3 is in a plate shape, the connecting rod 3 is clamped between the contact rods 21, furthermore, a first through hole 31 and a second through hole 32 are respectively formed in two ends of the connecting rod 3 in the extending direction, and the fixing shaft 7 sequentially penetrates through the contact rods 21, the first through hole 31 and the other contact rod 21 so as to rotatably fix the connecting rod 3 on two sides of the contact assembly 2.
The second through hole 32 is exposed outside the contact assembly 2, the connecting shaft 4 sequentially penetrates through one side wall of the accommodating cavity 11, the second through hole 32 and the other side wall of the accommodating cavity 22, further, the contact assembly 2 further comprises shaft sleeves 26 which are arranged in pairs, the shaft sleeves 26 are arranged corresponding to the second through hole 32, two shaft sleeves 26 in each pair of shaft sleeves 26 are respectively arranged at two sides of the second through hole 32, and the connecting shaft 4 is connected to the connecting rod 3 through the shaft sleeves 26.
Furthermore, the two side walls of the accommodating cavity 11 are respectively provided with long waist-shaped holes 13 which are arranged in pairs and used for accommodating the connecting shaft 4, when the switch-on position 101 and the switch-off position 103 of the contact assembly 2 are switched, the connecting rod 3 drives the connecting shaft 4 to slide in the long waist-shaped holes 13, the opening and closing distance/angle of the contact assembly 2 can be effectively controlled by setting the extension length of the long waist-shaped holes 13, and the contact assembly 2 is prevented from being excessively opened and closed.
The connection shaft 4 passes through the second through hole 32 and extends from the long kidney-shaped hole 13 through the rotation shaft 1 to connect with at least one elastic connection member 5. Specifically, the elastic connection member 5 is arranged at the end part of the connection shaft 4 extending to the end part, the end part of the connection shaft 4 extending is provided with a connection groove for connecting the elastic connection member 5, and the elastic connection member 5 is hung between two connection grooves of the two connection shafts 4 located at the same side of the rotating shaft 1.
In a preferred embodiment of the present invention, two elastic connection members 5 are provided, two elastic connection members 5 are respectively located at two sides of the rotating shaft 1 and are respectively connected between the extending ends of the two connection shafts 4, in this embodiment, grooves 12 extending along the radial direction of the rotating shaft are further provided on two end faces of the rotating shaft 1 oppositely disposed, the long kidney-shaped hole 31 is disposed in the groove 12, and the extending direction of the long kidney-shaped hole 31 is the same as the extending direction of the groove 12; further, the two elastic connection members 5 are received in the grooves 12 to reduce the volume when the two elastic connection members 5 are combined with the rotation shaft 1. Preferably, the elastic connection member 5 in the present invention is a spring connected between the two connection shafts 4.
Specifically, when the double-breakpoint contact rotating device of the present invention is used, the contact assembly 2 is located at a switching-on position 101 where the contact assembly contacts with a fixed contact in a circuit breaker, at this time, the two connecting shafts 4 respectively abut against one end of the long kidney-shaped hole 13 close to the central axis of the rotating shaft 1, the two elastic connecting members 5 connected between the two connecting shafts 4 provide a tensile force contracting in the radial direction of the rotating shaft 1, and the other end of the connecting rod 3 applies a pushing force in the direction of F1 (as shown in fig. 6) to the contact assembly 2, so that the contact assembly 2 is kept at the switching-on position 101.
When the double-breakpoint contact rotating device is driven by an external force to rotate from the switching-on position 101 to the middle position 102, the axes of the two connecting shafts 4, the fixed shaft 7 and the rotating shaft 1 are located on the same plane, at this time, the two elastic connecting members 5 connected between the two connecting shafts 4 provide a pulling force contracting along the radial direction of the rotating shaft 1 and a component force having the same tangential direction with the rotating motion of the contact assembly 2 for the two connecting shafts 4, so that the direction of the force applied on the contact assembly 2 by the elastic connecting members 5 is changed, the separation speed of the contact assembly 2 is accelerated, and the contact assembly 2 and the connecting shafts 4 are damped and clamped by the shaft sleeve 26 (as shown in fig. 7), so that the contact assembly 2 can be further prevented from reversely rotating to the switching-on position 101.
Further, when the double-breakpoint contact rotating device continues to rotate under the driving of an external force and rotates from the middle position 102 to the opening position 103, the two connecting shafts 4 are respectively clamped in the two clamping grooves 24 at the two sides of the feeler lever 21, and at this time, the two elastic connecting members 5 connected between the two connecting shafts 4 provide a tensile force for the two connecting shafts 4 to contract along the radial direction of the rotating shaft 1, so that the connecting shafts 4 are stably clamped in the clamping grooves 24, and the contact assembly 2 is prevented from falling back to the closing position 101; at the same time, the two elastic connecting members 5 apply a pushing force in the direction F2 to the contact assembly 2 through the other end of the link 3, so that the direction of the force component applied to the contact assembly 2 is changed again (as in fig. 8), further keeping the contact assembly 2 in the opening position 101 and repelling the seized state.
Furthermore, the invention also provides a circuit breaker applying the double-breakpoint contact rotating device. The circuit breaker comprises a shell, a fixed contact accommodated in the shell and a movable contact device arranged corresponding to the fixed contact, wherein the movable contact device is a double-breakpoint contact rotating device in the invention, so that the heat dissipation performance of the circuit breaker can be effectively improved, and the reliability of the fixed contact and the movable contact during breaking is ensured, and the circuit breaker has good breaking performance. It should be noted that, in the present invention, only the case that the circuit breaker includes a housing, a fixed contact accommodated in the housing, and a double-breakpoint contact rotating device is taken as an example for illustration, the circuit breaker of the present invention may further include common structures in the circuit breakers, such as an arc extinguishing chamber, an arc channel, an incoming line member, an outgoing line member, and an operating mechanism, and since the aforementioned structures and the connection structures between the aforementioned structures and the fixed contact and double-breakpoint contact rotating device are conventional structures/connections in the circuit breaker, specific setting forms of the aforementioned structures are not repeated in this specification.
In summary, the double-breakpoint contact rotating device provided by the invention is provided with the elastic connecting member 5 connected with the contact assembly 2 through a shaft, so that the position of the contact assembly 2 is limited through the elastic connecting member 5 in the rotating process of the contact assembly 2, the contact assembly 2 is repelled and clamped, and the assembly manufacturability of a circuit breaker using the double-breakpoint contact rotating device is improved. The elastic connecting member 5 can apply pulling force and/or pushing force to the contact assembly 2 when the contact assembly 2 rotates, so that the contact assembly is kept at the clamping position, and the clamping reliability and the clamping times of the double-breakpoint contact rotating device are improved. Furthermore, by arranging the structure of the contact assembly 2, the contact assembly 2 is formed by laminating a plurality of contact rods 21, so that the heat dissipation area of the contact assembly 2 is effectively increased, and the temperature rise of a circuit breaker using the double-breakpoint contact rotating device is reduced; meanwhile, the contact assembly 2 is rotationally symmetrical, the problem that the rotation of the contact assembly 2 connected with the double contacts is unbalanced is effectively solved, and the service life of the circuit breaker is prolonged while the temperature rise of the circuit breaker using the double-breakpoint contact rotating device is reduced.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a double-breakpoint contact rotating device, includes pivot (1), contact subassembly (2) and is used for with contact subassembly (2) rotate to be connected location axle (6) at pivot (1) center, its characterized in that: the contact assembly is characterized by further comprising two connecting rods (3) which are respectively arranged on two sides of the contact assembly (2), two connecting shafts (4) which respectively penetrate through the rotating shaft (1) and the two connecting rods (3), and an elastic connecting component (5) connected between the two connecting shafts (4); the elastic connecting component (5) can change the force application direction of the two connecting rods (3) to the contact assembly (2) when the contact assembly (2) starts to rotate in the rotating shaft (1), so that the separation speed of the contact assembly (2) is accelerated; and in the rotation process of the contact assembly (2), the force application direction of the two connecting rods (3) to the contact assembly (2) is changed again, so that the contact assembly (2) is kept in a repelling and clamping state.
2. The double break contact rotation device of claim 1, wherein: the contact assembly is characterized in that the rotating shaft (1) comprises a containing cavity (11) and a long waist-shaped hole (13), the containing cavity (11) penetrates through the rotating shaft (1) and is used for containing the contact assembly (2), the long waist-shaped hole (13) is formed in the rotating shaft (1) and corresponds to the connecting shaft (4).
3. The double break contact rotation device of claim 2, wherein: the both ends of contact subassembly (2) extend and exceed holding chamber (11), contact subassembly (2) have closing position (101) and separating brake position (103), work as contact subassembly (2) are in closing position (101) with when separating brake position (103) switch over between, connecting rod (3) drive connecting axle (4) are in slide in long kidney shape hole (13).
4. The double break contact rotation device of claim 2, wherein: the double-breakpoint contact rotating device further comprises a fixed shaft (7), the connecting rod (3) comprises a first through hole (31) and a second through hole (32) which are arranged at two ends of the connecting rod in the extending direction of the connecting rod, and the fixed shaft (7) penetrates through the contact assembly (2) and the first through hole (31) so as to fix the connecting rod (3) on the contact assembly (2) in a rotating mode; the connecting shaft (4) passes through the second through hole (32) and extends from the elongated kidney-shaped hole (13) through the rotating shaft (1) to connect with at least one elastic connecting member (5).
5. The double break contact rotation device of claim 1, wherein: the contact assembly (2) is rotationally symmetrically arranged, the contact assembly (2) comprises a plurality of contact rods (21) and two contact points (22) arranged at two extending ends of the contact rods (21), and the two connecting rods (3) are clamped between the contact rods (21).
6. The double break contact rotation apparatus of claim 5, wherein: the contact rods (21) are provided with through holes (23) for accommodating the connecting rods (3) to pass through, the contact rods (21) are matched and installed to form two rotationally symmetrical clamping grooves (24), and the through holes (23) are located on the sides of the clamping grooves (24).
7. The double break contact rotation device of claim 1, wherein: two grooves (12) which are correspondingly arranged are arranged on the rotating shaft (1), and the grooves (12) are arranged along the radial extending direction of the rotating shaft (1).
8. The double break contact rotation apparatus of claim 7, wherein: the long waist-shaped hole (13) used for accommodating the connecting shaft (4) to slide is formed in the groove (12), and the extending direction of the long waist-shaped hole (13) is the same as that of the groove (12).
9. The double break contact rotation apparatus of claim 7, wherein: the elastic connecting component (5) is a spring, and the spring is accommodated in the groove (12).
10. A circuit breaker, includes the static contact, its characterized in that: the double-breakpoint contact rotating device is characterized by further comprising a movable contact device arranged corresponding to the fixed contact, and the movable contact device is the double-breakpoint contact rotating device in any one of claims 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210105898.3A CN114464507A (en) | 2022-01-28 | 2022-01-28 | Double-breakpoint contact rotating device and circuit breaker |
| PCT/CN2022/113922 WO2023142459A1 (en) | 2022-01-28 | 2022-08-22 | Double-breakpoint contact rotating apparatus and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210105898.3A CN114464507A (en) | 2022-01-28 | 2022-01-28 | Double-breakpoint contact rotating device and circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114464507A true CN114464507A (en) | 2022-05-10 |
Family
ID=81411559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210105898.3A Pending CN114464507A (en) | 2022-01-28 | 2022-01-28 | Double-breakpoint contact rotating device and circuit breaker |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114464507A (en) |
| WO (1) | WO2023142459A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023142459A1 (en) * | 2022-01-28 | 2023-08-03 | 伊顿辉能低压电器(江苏)有限公司 | Double-breakpoint contact rotating apparatus and circuit breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101320659A (en) * | 2008-07-14 | 2008-12-10 | 上海电器科学研究所（集团）有限公司 | Rotating double-breakpoint structure of plastic case breaker |
| CN102412103A (en) * | 2011-11-07 | 2012-04-11 | 贵州长征开关制造有限公司 | Contact mechanism for double-breakpoint circuit breaker |
| CN103050344A (en) * | 2011-10-13 | 2013-04-17 | 上海电科电器科技有限公司 | Rotation double-breakpoint movable contact module |
| CN206282813U (en) * | 2016-12-12 | 2017-06-27 | 上海电器股份有限公司人民电器厂 | The contact system of breaker |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101620955B (en) * | 2009-05-11 | 2012-06-20 | 江苏辉能电气有限公司 | Method for locking contacts of low-voltage circuit breaker |
| CN102103948A (en) * | 2009-12-16 | 2011-06-22 | 上海电器股份有限公司人民电器厂 | Moving contact assembly of molded case circuit breaker |
| KR101141537B1 (en) * | 2011-01-03 | 2012-05-04 | 엘에스산전 주식회사 | Movable contactor assembly for current limiting circuit breaker |
| CN102403171A (en) * | 2011-11-21 | 2012-04-04 | 科都电气有限公司 | Contact structure for molded case circuit breaker and molded case circuit breaker using the same |
| CN113936977A (en) * | 2020-06-29 | 2022-01-14 | 上海电器股份有限公司人民电器厂 | Breaking unit of double-breakpoint molded case circuit breaker |
| CN213071050U (en) * | 2020-07-10 | 2021-04-27 | 江苏大全凯帆开关股份有限公司 | Moving contact of double-breakpoint molded case circuit breaker and rotating shaft system comprising same |
| CN114464507A (en) * | 2022-01-28 | 2022-05-10 | 江苏辉能电气有限公司 | Double-breakpoint contact rotating device and circuit breaker |
-
2022
- 2022-01-28 CN CN202210105898.3A patent/CN114464507A/en active Pending
- 2022-08-22 WO PCT/CN2022/113922 patent/WO2023142459A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101320659A (en) * | 2008-07-14 | 2008-12-10 | 上海电器科学研究所（集团）有限公司 | Rotating double-breakpoint structure of plastic case breaker |
| CN103050344A (en) * | 2011-10-13 | 2013-04-17 | 上海电科电器科技有限公司 | Rotation double-breakpoint movable contact module |
| CN102412103A (en) * | 2011-11-07 | 2012-04-11 | 贵州长征开关制造有限公司 | Contact mechanism for double-breakpoint circuit breaker |
| CN206282813U (en) * | 2016-12-12 | 2017-06-27 | 上海电器股份有限公司人民电器厂 | The contact system of breaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023142459A1 (en) * | 2022-01-28 | 2023-08-03 | 伊顿辉能低压电器(江苏)有限公司 | Double-breakpoint contact rotating apparatus and circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023142459A1 (en) | 2023-08-03 |
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Effective date of registration: 20220516 Address after: 212132 No. 97, Wufengshan Road, Dagang, New District, Zhenjiang City, Jiangsu Province Applicant after: Huineng low voltage electric appliance (Jiangsu) Co.,Ltd. Address before: No.97, Wufengshan Road, Dagang, Zhenjiang New District, Zhenjiang City, Jiangsu Province Applicant before: Jiangsu Phono Electric Co.,Ltd. |
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Address after: 212132 No. 97, Wufengshan Road, Dagang, New District, Zhenjiang City, Jiangsu Province Applicant after: Eaton Huineng low voltage electrical appliances (Jiangsu) Co.,Ltd. Address before: 212132 No. 97, Wufengshan Road, Dagang, New District, Zhenjiang City, Jiangsu Province Applicant before: Huineng low voltage electric appliance (Jiangsu) Co.,Ltd. |