CN112530760A - Separating brake tripping mechanism and direct current circuit breaker - Google Patents
Separating brake tripping mechanism and direct current circuit breaker Download PDFInfo
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- CN112530760A CN112530760A CN202011359257.8A CN202011359257A CN112530760A CN 112530760 A CN112530760 A CN 112530760A CN 202011359257 A CN202011359257 A CN 202011359257A CN 112530760 A CN112530760 A CN 112530760A
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- push rod
- rod
- pushing
- lever
- driving
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- 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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/128—Manual release or trip mechanisms, e.g. for test purposes
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- 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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
Abstract
The invention relates to a separating brake tripping mechanism and a direct current circuit breaker. Separating brake tripping device includes: the pushing piece is fixedly arranged on the rotating rod and used for pushing the poking rod upwards when the rotating rod rotates; the first push rod drives the rotating rod to rotate through the crank arm; the push rod penetrates through the electromagnet and is driven by the electromagnet; the second push rod is in transmission connection with the rotating rod; the manual button is used for driving the second push rod to act so as to drive the rotating rod to rotate; further comprising: the hinged seat is fixedly arranged on the circuit breaker body; and one end of the lever is a hinged end, the other end of the lever is a driving end, the hinged end is hinged on the hinged seat, the driving end is provided with a driving part, the driving part is used for being in pushing fit with the manual button, and the position of the lever, which is close to the hinged end and far away from the driving end, is in transmission connection with the second push rod. Due to the existence of the lever, labor is saved when the manual button is pressed, and the opening tripping mechanism can be applied to a circuit breaker with large tripping force.
Description
Technical Field
The invention relates to a separating brake tripping mechanism and a direct current circuit breaker.
Background
The rail transit touch network needs direct current power supply, the main element of the direct current power supply is a direct current breaker, electric energy is output from a rectifier, the electric energy reaches the touch network through the direct current breaker in a direct current cabinet, and the direct current breaker plays a role in quickly breaking electric energy supply and fault current in the system.
Chinese patent application publication No. CN104377095A discloses an operating mechanism, which pulls an insulating push rod through an electromagnet, and the insulating push rod drives a rotating rod to rotate through a crank arm, so that a top block fixed on the rotating rod pushes a poke rod upwards to realize electric opening. But sometimes, the electromagnet can not be tripped due to large current, a power grid, a circuit or other electromagnetic interference, so that the circuit and equipment are damaged.
Chinese utility model patent with grant publication number CN211238137U discloses an emergency tripping operating mechanism for dc circuit breaker, which has two functions of electric tripping and manual tripping, and when the tripping operation can not be realized by the electric tripping, the operating rod (push rod) is pushed by a button to realize the manual tripping. However, for a circuit breaker with large tripping force, the operating force of manual brake opening is large, and manual brake opening tripping is not easy to realize.
Disclosure of Invention
The invention aims to provide a tripping mechanism for solving the technical problem that the emergency tripping operating mechanism in the prior art is difficult to realize manual tripping for a circuit breaker with larger tripping force; the invention also aims to provide the direct current circuit breaker.
The opening tripping mechanism adopts the following technical scheme:
separating brake tripping device includes:
the pushing piece is fixedly arranged on the rotating rod and used for pushing the poking rod upwards when the rotating rod rotates;
the first push rod drives the rotating rod to rotate through the crank arm;
the push rod penetrates through the electromagnet and is driven by the electromagnet;
the second push rod is in transmission connection with the rotating rod;
the manual button is used for driving the second push rod to act so as to drive the rotating rod to rotate;
further comprising:
the hinged seat is fixedly arranged on the circuit breaker body;
and one end of the lever is a hinged end, the other end of the lever is a driving end, the hinged end is hinged on the hinged seat, the driving end is provided with a driving part, the driving part is used for being in pushing fit with the manual button, and the position of the lever, which is close to the hinged end and far away from the driving end, is in transmission connection with the second push rod.
The beneficial effects are that: when the moving contact works normally, the rotating rod is driven by an electromagnet through a first push rod to realize the opening of the moving contact; when the electromagnet cannot work due to faults, the manual button is pressed, and the rotating rod is driven to rotate through the second push rod so as to realize the opening of the moving contact. Due to the existence of the lever, labor is saved when the manual button is pressed, the opening tripping mechanism can be applied to a circuit breaker with large tripping force, and the moving contact can be ensured to be opened.
Furthermore, the second push rod and the first push rod are in pushing fit with each other at the end far away from the rotating rod, and the two push rods are coaxially arranged.
The beneficial effects are that: due to the design, the opening tripping mechanism can be simplified, and the arrangement of the opening tripping mechanism in a breaker chamber is facilitated.
Furthermore, a pushing part is arranged on the second push rod, the pushing part is arranged on the second push rod along the axial position of the second push rod in an adjustable mode, and the second push rod is in pushing fit with the rotating rod through the pushing part.
The beneficial effects are that: through adjusting the pushing piece, the second push rod can better push the first push rod.
Furthermore, the brake separating and tripping mechanism further comprises a push rod resetting elastic piece, and the push rod resetting elastic piece applies elastic acting force for enabling the second push rod to be restored to the original position after the second push rod acts.
The beneficial effects are that: the push rod elastic component that resets can realize resetting with reset spring on the first push rod in coordination, guarantees that the second push rod is reliable and stable to resume to the original position.
Furthermore, the push rod reset elastic piece is a reset pressure spring sleeved on the second push rod.
The beneficial effects are that: by the design, the stability of the pressure spring in the compression process can be improved.
Further, the driving end of the lever is provided with a roller, and the roller forms the driving part.
The beneficial effects are that: the roller can reduce friction, and is favorable for reducing manual driving force.
Further, manual button includes sleeve and actuating lever, and the sleeve is used for fixing on the door plant, and actuating lever reciprocating motion in the sleeve is equipped with actuating lever elastic component that resets between actuating lever and the sleeve, and actuating lever elastic component that resets is used for exerting the elastic force that makes it resume to the original position to the actuating lever after the actuating lever is pressed.
The beneficial effects are that: design like this for can resume to the original position after the actuating lever is pressed, make things convenient for operating personnel's operation.
Furthermore, the pushing end of the driving rod is detachably connected with a pushing plate, the size of the cross section of the pushing plate is larger than that of the cross section of the pushing end, and the pushing plate is used for being matched with the driving part in a pushing mode.
The beneficial effects are that: the cross section size of the pushing plate is larger than that of the pushing end, so that the contact area is increased, and the stability of pushing matching is ensured; the top push plate is detachably connected at the top push end of the driving rod, so that the driving rod can be replaced by the elastic reset piece conveniently.
Furthermore, be equipped with the transfer line on the second push rod, the axis of transfer line is followed the radial extension of second push rod, the lever is U type structure, and the diapire of lever is equipped with the push rod and dodges the hole, is equipped with the transfer line on the both sides wall of lever and dodges the hole.
The beneficial effects are that: the design ensures the stability of the lever in the process of driving the second push rod to move.
The direct current breaker adopts the following technical scheme:
direct current circuit breaker, including circuit breaker body and the separating brake tripping device of setting on the circuit breaker body, separating brake tripping device includes:
the pushing piece is fixedly arranged on the rotating rod and used for pushing the poking rod upwards when the rotating rod rotates;
the first push rod drives the rotating rod to rotate through the crank arm;
the push rod penetrates through the electromagnet and is driven by the electromagnet;
the second push rod is in transmission connection with the rotating rod;
the manual button is used for driving the second push rod to act so as to drive the rotating rod to rotate;
further comprising:
the hinged seat is fixedly arranged on the circuit breaker body;
and one end of the lever is a hinged end, the other end of the lever is a driving end, the hinged end is hinged on the hinged seat, the driving end is provided with a driving part, the driving part is used for being in pushing fit with the manual button, and the position of the lever, which is close to the hinged end and far away from the driving end, is in transmission connection with the second push rod.
The beneficial effects are that: when the moving contact works normally, the rotating rod is driven by an electromagnet through a first push rod to realize the opening of the moving contact; when the electromagnet cannot work due to faults, the manual button is pressed, and the rotating rod is driven to rotate through the second push rod so as to realize the opening of the moving contact. Due to the existence of the lever, labor is saved when the manual button is pressed, the opening tripping mechanism can be applied to a circuit breaker with large tripping force, and the moving contact can be ensured to be opened.
Furthermore, the second push rod and the first push rod are in pushing fit with each other at the end far away from the rotating rod, and the two push rods are coaxially arranged.
The beneficial effects are that: due to the design, the opening tripping mechanism can be simplified, and the arrangement of the opening tripping mechanism in a breaker chamber is facilitated.
Furthermore, a pushing part is arranged on the second push rod, the pushing part is arranged on the second push rod along the axial position of the second push rod in an adjustable mode, and the second push rod is in pushing fit with the rotating rod through the pushing part.
The beneficial effects are that: through adjusting the pushing piece, the second push rod can better push the first push rod.
Furthermore, the brake separating and tripping mechanism further comprises a push rod resetting elastic piece, and the push rod resetting elastic piece applies elastic acting force for enabling the second push rod to be restored to the original position after the second push rod acts.
The beneficial effects are that: the push rod elastic component that resets can realize resetting with reset spring on the first push rod in coordination, guarantees that the second push rod is reliable and stable to resume to the original position.
Furthermore, the push rod reset elastic piece is a reset pressure spring sleeved on the second push rod.
The beneficial effects are that: by the design, the stability of the pressure spring in the compression process can be improved.
Further, the driving end of the lever is provided with a roller, and the roller forms the driving part.
The beneficial effects are that: the roller can reduce friction, and is favorable for reducing manual driving force.
Further, manual button includes sleeve and actuating lever, and the sleeve is used for fixing on the door plant, and actuating lever reciprocating motion in the sleeve is equipped with actuating lever elastic component that resets between actuating lever and the sleeve, and actuating lever elastic component that resets is used for exerting the elastic force that makes it resume to the original position to the actuating lever after the actuating lever is pressed.
The beneficial effects are that: design like this for can resume to the original position after the actuating lever is pressed, make things convenient for operating personnel's operation.
Furthermore, the pushing end of the driving rod is detachably connected with a pushing plate, the size of the cross section of the pushing plate is larger than that of the cross section of the pushing end, and the pushing plate is used for being matched with the driving part in a pushing mode.
The beneficial effects are that: the cross section size of the pushing plate is larger than that of the pushing end, so that the contact area is increased, and the stability of pushing matching is ensured; the top push plate is detachably connected at the top push end of the driving rod, so that the driving rod can be replaced by the elastic reset piece conveniently.
Furthermore, be equipped with the transfer line on the second push rod, the axis of transfer line is followed the radial extension of second push rod, the lever is U type structure, and the diapire of lever is equipped with the push rod and dodges the hole, is equipped with the transfer line on the both sides wall of lever and dodges the hole.
The beneficial effects are that: the design ensures the stability of the lever in the process of driving the second push rod to move.
For the subject to be protected by the present patent, each preferred technical solution under the same subject may be adopted alone, and when the preferred technical solutions under the same subject can be combined, two or more preferred technical solutions under the same subject may be arbitrarily combined, and the technical solutions formed by the combination are not specifically described here, and are included in the description of the present patent in this form.
Drawings
FIG. 1 is a schematic structural diagram of a tripping mechanism of the present invention;
FIG. 2 is a schematic structural diagram of the manual opening mechanism in FIG. 1;
FIG. 3 is a schematic structural view of the manual button of FIG. 1;
in the figure: 11. a moving contact; 12. a poke rod; 13. dialing a plate; 14. rotating the rod; 15. a supporting seat; 16. a crank arm; 17. a first push rod; 18. an electromagnet; 19. resetting the pressure spring; 20. a second push rod; 21. a hinged seat; 22. the push rod resets the elastic piece; 23. a lever; 24. a manual button; 241. a drive rod; 242. a sleeve; 243. the driving rod resets the elastic piece; 244. pushing the plate; 25. a roller; 26. the transmission rod dodges the hole; 27. a transmission rod; 28. a push rod avoidance hole; 29. and pushing the head.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, which may be present in the embodiments of the present invention, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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. Without further limitation, the statement that "comprises an … …" is intended to indicate that there are additional elements of the same process, method, article, or apparatus that comprise the element.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, unless otherwise specifically stated or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
Embodiment 1 of the opening trip mechanism of the present invention:
as shown in fig. 1, the separating brake tripping mechanism includes a supporting seat 15, a poking rod 12 and a moving contact 11, the supporting seat 15 is provided with two and spaced arrangements, a rotating rod 14 is rotatably assembled on the supporting seat 15, a poking plate 13 is fixedly arranged on the rotating rod 14, and the poking plate 13 is used for pushing the poking rod 12 upwards when the rotating rod 14 rotates, so that the poking rod 12 relieves the limit on the moving contact 11, and the separating brake operation is realized. In this embodiment, the rotating rod 14 is driven to rotate by an electric brake-separating mechanism or a manual brake-separating mechanism.
In this embodiment, the electric brake separating mechanism includes a first push rod 17 and an electromagnet 18, one end of the first push rod 17 is in transmission connection with the rotating rod 14 through the crank arm 16, the other end of the first push rod 17 passes through the electromagnet 18, and when the electromagnet 18 is powered on, the first push rod 17 is driven to act so as to drive the rotating rod 14 to rotate through the crank arm 16.
In this embodiment, a reset compression spring 19 is disposed on a side of the electromagnet 18 facing away from the rotating rod 14, and after the switching-off operation of the reset compression spring 19 is completed, an elastic acting force is applied to the first push rod 17, so that the first push rod 17 is restored to the initial position. Wherein, the reset pressure spring 19 is sleeved on the first push rod 17 to ensure the stability in the compression process.
As shown in fig. 1 and 2, the manual opening mechanism includes a second push rod 20, a hinge base 21, a lever 23, and a manual button 24. Wherein, the hinged seat 21 is fixed on the handcart, and the manual button 24 is fixed on the door plate.
In this embodiment, one end of the second push rod 20 is in pushing fit with the first push rod 17, the other end of the second push rod 20 is inserted into the hinge seat 21, the second push rod 20 and the first push rod 17 are coaxially arranged, and the second push rod 20 is in transmission connection with the rotating rod 14 through the first push rod 17 to drive the rotating rod 14 to rotate. The second push rod 20 is provided with a pushing head 29, the pushing head 29 is of a sleeve structure and is provided with an internal thread, the second push rod 20 is provided with an external thread, the pushing head 29 is in threaded connection with the second push rod 20 so as to realize that the axial position of the pushing head 29 on the second push rod 20 can be adjusted, and the second push rod 20 is in pushing fit with the first push rod 17 through the pushing head 29. Wherein, the end of the pushing head 29 close to the first push rod 17 is a closed structure, and the pushing head 29 constitutes a pushing member.
In this embodiment, the lower end of the lever 23 is a hinged end, the upper end is a driving end, the hinged end is hinged on the hinged seat 21, and the driving end is provided with a driving part which is used for being in pushing fit with the manual button 24. As shown in fig. 2, the driving part is a roller 25 disposed at the upper end of the lever 23, and the roller 25 can reduce friction force, which is beneficial to reducing manual driving force.
As shown in fig. 2, the lever 23 is drivingly connected to the second push rod 20 at a position near the hinge end and far from the driving end. Specifically, the second push rod 20 is provided with two transmission rods 27, the two transmission rods 27 are symmetrically arranged, the axes of the two transmission rods 27 extend along the radial direction of the second push rod 20, the lever 23 is of a U-shaped structure, the bottom wall of the lever 23 is provided with push rod avoiding holes 28, and the two side walls of the lever 23 are provided with transmission rod avoiding holes 26. The push rod avoiding hole 28 and the transmission rod avoiding hole 26 are both long holes extending along the length direction of the lever 23.
In this embodiment, the manual brake separating mechanism further includes a push rod returning elastic element 22, and the push rod returning elastic element 22 applies an elastic force to the second push rod 20 to restore the second push rod 20 to the original position after the second push rod 20 acts. The push rod return elastic member 22 is a return pressure spring sleeved on the second push rod 20 to ensure stability in the compression process. In other embodiments, the push rod reset piece is a reset tension spring.
As shown in fig. 1 and 3, the manual button includes a sleeve 242 and a driving lever 241, the sleeve 242 is configured to be fixed to the door panel, the driving lever 241 reciprocates in the sleeve 242, a driving lever returning elastic member 243 is disposed between the driving lever 241 and the sleeve 242, and the driving lever returning elastic member 243 is configured to apply an elastic force to the driving lever 241 to return to the original position after the driving lever 241 is pressed. Wherein, the driving rod reset elastic piece is a reset pressure spring.
In this embodiment, a connecting flange is disposed on the outer peripheral surface of the sleeve 242, and the sleeve 242 is fixed to the door panel through the connecting flange.
In this embodiment, the pushing end of the driving rod 241 is detachably connected with a pushing plate 244, the cross-sectional size of the pushing plate 244 is larger than that of the pushing end, the pushing plate 244 is used for being in pushing fit with the roller 25, and the cross-sectional size of the pushing plate 244 is larger than that of the pushing end, so that the contact area is increased, and the stability of the pushing fit is ensured; the pushing plate 244 is detachably connected to the pushing end of the driving rod 241, so that replacement of the reset pressure spring is facilitated.
During normal operation, the rotation of the rotating rod 14 is driven by the electromagnet 18 to realize the opening of the moving contact 11; when the electromagnet fails to work due to a fault, the manual button 24 is pressed to drive the rotating rod 14 to rotate, so as to realize the opening of the movable contact 11. Due to the existence of the lever 23, labor is saved when the manual button 24 is pressed, the movable contact 11 can be ensured to be separated, and the separating brake tripping mechanism can be applied to a circuit breaker with large tripping force.
Embodiment 2 of the opening tripping mechanism of the present invention:
the present embodiment is different from embodiment 1 in that in embodiment 1, the second push rod 20 is connected to one end of the first push rod 17 away from the rotating rod 14, and the two push rods are coaxially arranged to simplify the structure; in the present embodiment, the first push rod and the second push rod are arranged in parallel, for example, the structure disclosed in the publication No. CN 211238137U.
Embodiment 3 of the opening trip mechanism of the present invention:
the difference between the present embodiment and embodiment 1 is that in embodiment 1, a push rod returning elastic element 22 is sleeved on the second push rod 20, so as to apply an elastic force to the second push rod 20 to restore the second push rod 20 to the original position after the second push rod 20 acts; in the embodiment, the push rod return elastic element is not arranged, but the return pressure spring on the first push rod is used for realizing the return of the second push rod.
Embodiment 4 of the opening trip mechanism of the present invention:
the difference between the present embodiment and embodiment 1 is that in embodiment 1, the driving portion of the lever is a roller to reduce the friction force; in this embodiment, the driving portion of the lever is a ball structure fixed at the driving end of the lever to reduce the friction.
The embodiment of the direct current breaker of the invention: the dc circuit breaker includes a breaker body and a tripping mechanism provided on the breaker body, and an embodiment of the tripping mechanism, that is, the tripping mechanism described in any one of embodiments 1 to 4 of the tripping mechanism, is not specifically described here.
The above description is only a preferred embodiment of the present application, and not intended to limit the present application, the scope of the present application is defined by the appended claims, and all changes in equivalent structure made by using the contents of the specification and the drawings of the present application should be considered as being included in the scope of the present application.
Claims (10)
1. Separating brake tripping device includes:
the rotating rod (14) is fixedly provided with a pushing piece, and the pushing piece is used for pushing the poking rod (12) upwards when the rotating rod (14) rotates;
the first push rod (17) drives the rotating rod (14) to rotate through the crank arm (16);
the push rod penetrates through the electromagnet (18) and is driven by the electromagnet (18);
the second push rod (20) is in transmission connection with the rotating rod (14);
the manual button (24) is used for driving the second push rod (20) to act so as to drive the rotating rod (14) to rotate;
it is characterized by also comprising:
the hinged seat (21) is fixedly arranged on the circuit breaker body;
and one end of the lever (23) is a hinged end, the other end of the lever is a driving end, the hinged end is hinged on the hinged seat (21), the driving end is provided with a driving part, the driving part is used for being in pushing fit with the manual button (24), and the position, close to the hinged end and far away from the driving end, of the lever (23) is in transmission connection with the second push rod (20).
2. The opening tripping mechanism according to claim 1, wherein the second push rod (20) is in pushing fit with one end of the first push rod (17) far away from the rotating rod (14), and the two push rods are coaxially arranged.
3. The brake-separating tripping mechanism according to claim 2, wherein the second push rod (20) is provided with an ejector, the ejector is arranged on the second push rod (20) along the axial position of the second push rod (20) in an adjustable manner, and the second push rod (20) is in push fit with the rotating rod (14) through the ejector.
4. The opening tripping mechanism according to claim 1, 2 or 3, characterized in that the opening tripping mechanism further comprises a push rod reset elastic member (22), and the push rod reset elastic member (22) applies elastic force to the second push rod (20) to restore the second push rod (20) to the original position after the second push rod (20) acts.
5. The tripping mechanism according to claim 4, wherein said push rod return elastic member (22) is a return compression spring fitted over the second push rod (20).
6. The opening trip release mechanism according to claim 1 or 2 or 3, characterized in that the driving end of the lever (23) is provided with a roller (25), and the roller (25) constitutes the driving part.
7. The tripping mechanism according to claim 1, 2 or 3, wherein the manual button (24) comprises a sleeve (242) and an actuating rod (241), the sleeve (242) is used for being fixed on the door panel, the actuating rod (241) reciprocates in the sleeve (242), an actuating rod reset elastic member (243) is arranged between the actuating rod (241) and the sleeve (242), and the actuating rod reset elastic member (243) is used for applying elastic force to the actuating rod (241) to restore the actuating rod (241) to the original position after the actuating rod (241) is pressed.
8. The tripping mechanism according to claim 7, wherein the pushing end of the driving rod (241) is detachably connected with a pushing plate (244), the cross-sectional dimension of the pushing plate (244) is larger than that of the pushing end, and the pushing plate (244) is used for being in pushing fit with the driving part.
9. The brake separating and tripping mechanism according to claim 1, 2 or 3, wherein a transmission rod (27) is arranged on the second push rod (20), the axis of the transmission rod (27) extends along the radial direction of the second push rod (20), the lever (23) is of a U-shaped structure, a push rod avoiding hole (28) is arranged on the bottom wall of the lever (23), and transmission rod avoiding holes (26) are arranged on the two side walls of the lever (23).
10. Direct current circuit breaker, including the circuit breaker body and set up the tripping device that opens the brake on the circuit breaker body, characterized in that, the tripping device that opens the brake is the tripping device of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011359257.8A CN112530760B (en) | 2020-11-27 | 2020-11-27 | Separating brake tripping mechanism and direct current breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011359257.8A CN112530760B (en) | 2020-11-27 | 2020-11-27 | Separating brake tripping mechanism and direct current breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112530760A true CN112530760A (en) | 2021-03-19 |
| CN112530760B CN112530760B (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011359257.8A Active CN112530760B (en) | 2020-11-27 | 2020-11-27 | Separating brake tripping mechanism and direct current breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023138019A1 (en) * | 2022-07-28 | 2023-07-27 | 四川电器集团中低压智能配电有限公司 | Emergency tripping structure for circuit breaker |
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| WO2023138019A1 (en) * | 2022-07-28 | 2023-07-27 | 四川电器集团中低压智能配电有限公司 | Emergency tripping structure for circuit breaker |
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| CN112530760B (en) | 2023-10-03 |
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