Single connecting rod type power switch actuating mechanism
By designing a single-link power switch actuator, electromagnetic force is used to limit the downward movement of the moving block, thus solving the problem of sudden tripping of vacuum circuit breakers under current fluctuations and improving the stability and reliability of the switch.
Patent Information
- Application Number
- CN202423097398.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-16
AI Technical Summary
The actuators of existing vacuum circuit breakers are prone to tripping unexpectedly when the current fluctuates.
Design a single-link electric switch actuator. Electromagnets are attracted by electromagnetic force, the moving block moves upward and to the bottom of the pin groove. The connecting rod body drives the connecting shaft to deflect and engage the hook-shaped structure, which restricts the downward movement of the moving block and prevents it from tripping.
This technology prevents the vacuum circuit breaker from tripping unexpectedly after closing during current fluctuations, thus improving the stability and reliability of the switch.
Smart Images
Figure CN223527067U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to power switch technical field more specifically, relate to a single connecting rod formula power switch actuating mechanism. BACKGROUND
[0002] Vacuum circuit breaker is the short name of vacuum arc extinguishing circuit breaker, also known to be arc extinguishing can occur in vacuum medium circuit breaker. Its working principle is: when the dynamic, static contact of vacuum circuit breaker is under the action of operating mechanism, the arc is generated between the contact, and the contact surface emits steam under high temperature. Because the contact is designed as a special shape, a magnetic field is generated when the current passes, and the arc moves along the tangent direction of the contact surface under the action of the magnetic field, and part of the metal vapor is condensed on the metal cylinder, and the arc is extinguished when the natural zero occurs, and the medium strength between the contacts is quickly restored.
[0003] At present, the actuating mechanism of vacuum circuit breaker is mainly driven by electromagnetic operating mechanism to complete the closing and opening actions of circuit breaker, but the premise of stable closing and opening of electromagnetic operating mechanism is the stable and continuous output of current to form a stable magnetic field to maintain the closing and opening actions. When the current fluctuates, the switch is prone to jump. In view of this, we provide a single connecting rod formula power switch actuating mechanism. UTILITY MODEL CONTENTS
[0004] The utility model aims at overcoming the defects of prior art, adapting to the actual needs, providing a single connecting rod formula power switch actuating mechanism to solve the technical problem that the existing actuating mechanism is prone to jump when the current fluctuates.
[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: a single connecting rod formula power switch actuating mechanism, which comprises an electromagnetic mechanism with a top movable and detachable electromagnetic iron b;
[0006] The electromagnetic mechanism comprises an electromagnetic iron a with a support column formed in the middle of the top end, the top end of the support column is connected with a moving block, the top of the electromagnetic iron b is fixedly connected with a support sleeve, the two sides of the support sleeve are centrally formed with shaft rods, the outer edge surface of the support sleeve is rotatably connected with a connecting rod assembly, the inside of the moving block is formed with a pin shaft groove, and the bottom wall of the pin shaft groove is bent to extend into the moving block in a hook shape;
[0007] The connecting rod assembly comprises a connecting rod body which is symmetrically arranged and rotatably installed on the outer edge surface of the shaft rod, the bottom end of the connecting rod body is internally formed with a shaft hole for installing the shaft rod, the top ends of the opposite faces of the connecting rod body are fixedly connected with a connecting shaft, and the connecting shaft is movably arranged in the pin shaft groove.
[0008] The utility model discloses a connecting rod body and connecting shaft are designed, when vacuum circuit breaker executes closing action, its through electromagnetic force makes that electromagnet b and electromagnet a attract, when this, the moving block is under the attraction of electromagnetic force and moves up, simultaneously makes the relative displacement of connecting shaft in pin shaft groove, and removes to the bottom of pin shaft groove, when the connecting rod body is stirred, and the connecting shaft is deflected through the connecting rod body, makes the connecting shaft and enter the hook -shaped structure in the bottom of pin shaft groove, can limit the moving block, and the moving block is limited and moves down to the effect that the vacuum circuit breaker closes and prevents the jump of stealing.
[0009] Preferably, the outer edge surface of the support sleeve is symmetrically provided with a through groove for the connecting shaft to pass through.
[0010] Preferably, the moving block is movably installed in the support sleeve, and a slot hole is formed in the middle of the bottom of the support sleeve for the support column to pass through.
[0011] Preferably, the electromagnet b is in a hollow annular structure for the support column and the moving block to pass through.
[0012] Preferably, a spring is sleeved on the outer edge surface of the support column, the bottom end of the spring is fixedly connected to the electromagnet a, and the top end of the spring movably abuts against the bottom of the support sleeve.
[0013] Compared with the prior art, the utility model has the advantages that:
[0014] When the vacuum circuit breaker executes closing action, the electromagnet b and the electromagnet a are attracted through electromagnetic force, the moving block moves up under the attraction of electromagnetic force, the connecting shaft is relatively displaced in the pin shaft groove, and moves to the bottom of the pin shaft groove, the connecting rod body is stirred, the connecting shaft is deflected through the connecting rod body, the connecting shaft is clamped into the hook-shaped structure at the bottom of the pin shaft groove, the moving block is limited, the moving block is limited and moves down, the effect that the vacuum circuit breaker closes and prevents the jump of stealing is realized, and the problem that the switch is prone to jump when the current fluctuates in the prior art is solved. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the structural schematic diagram of the utility model;
[0016] Figure 2 It is the sectional view of the utility model; Figure 1
[0017] Figure 3 It is the split schematic view of the utility model; Figure 1
[0018] Figure 4 It is the structural schematic diagram of the connecting rod assembly of the utility model.
[0019] Explanation of reference numerals in the drawings:
[0020] 1. electromagnetic mechanism; 101. electromagnet a; 102. support column; 103. moving block; 104. pin shaft groove; 105. spring; 2. electromagnet b; 3. support sleeve; 4. through groove; 5. shaft rod; 6. connecting rod assembly; 601. connecting rod body; 602. connecting shaft; 603. shaft hole. DETAILED DESCRIPTION
[0021] As Figures 1-4 shown, the utility model relates to a single connecting rod type electric power switch executing mechanism, including the top movable detachable setting electromagnetic mechanism 1 of electromagnet b2, electromagnetic mechanism 1 includes the electromagnet a 101 of top center configuration formed with support column 102, the top of support column 102 is structured and is connected with moving block 103, the top fixed connection of electromagnet b2 has support sleeve 3, both sides of support sleeve 3 are centrally structured and are formed with shaft rod 5, the outer edge surface of support sleeve 3 can be rotatably connected with connecting rod assembly 6, the inside of moving block 103 is formed with pin shaft groove 104, the bottom wall of pin shaft groove 104 is bent and extends to the inside of moving block 103 and is in the form of hook structure, connecting rod assembly 6 includes the connecting rod body 601 that is symmetrically arranged and can be rotatably installed on the outer edge surface of shaft rod 5, the inside of the bottom end of connecting rod body 601 is formed with the shaft hole 603 for the installation of shaft rod 5, the top end of the opposite side of connecting rod body 601 is fixedly connected with connecting shaft 602, and connecting shaft 602 is movably arranged in pin shaft groove 104.
[0022] In the embodiment of the utility model, the outer edge surface of support sleeve 3 is symmetrically formed with through groove 4 for the active penetration of connecting shaft 602, moving block 103 is movably installed in support sleeve 3, the bottom of support sleeve 3 is centrally formed with slot hole for the penetration of support column 102, electromagnet b2 is in the form of annular structure for the penetration of support column 102 and moving block 103, spring 105 is sleeved on the outer edge surface of support column 102, the bottom end of spring 105 is fixedly connected with electromagnet a 101, and the top end of spring 105 is movably abutted on the bottom of support sleeve 3.
[0023] Working principle: the embodiment provides a single connecting rod type electric power switch executing mechanism, when using, when the vacuum circuit breaker executes closing action, it is attracted to the electromagnet b2 and the electromagnet electromagnet a101 through electromagnetic force, simultaneously, relative displacement of connecting shaft 602 occurs in pin shaft slot 104, and moves to the bottom of pin shaft slot 104, at this time, the connecting rod body 601 is actuated, connecting shaft 602 is deflected by the connecting rod body 601, and is clamped into the hook-shaped structure in the bottom of pin shaft slot 104, that is, the moving block 103 can be limited, the downward movement of the moving block 103 is limited, thereby realizing the effect of preventing the jump of vacuum circuit breaker after closing, when opening, the connecting rod body 601 is actuated reversely, connecting shaft 602 is separated from the hook-shaped structure in the bottom of pin shaft slot 104, and subsequent opening action can be completed.
[0024] The embodiment of the utility model discloses the better embodiment, but is not limited to this, the ordinary skill of the art, easily understands the spirit of the utility model according to the above-mentioned embodiment, and makes different extension and change, but as long as not departing from the spirit of the utility model, all are within the protection scope of the utility model.
Claims
1. A single link power switch actuator, characterized by, It includes top movable detachable setting with electromagnet b (2) electromagnetic mechanism (1); The electromagnetic mechanism (1) includes the electromagnet a (101) with the support column (102) formed in the top center structure, the top end structure of the support column (102) is connected with the moving block (103), the top of the electromagnet b (2) is fixedly connected with the support sleeve (3), the both sides of the support sleeve (3) are centrally formed with the shaft rod (5), the outer edge surface of the support sleeve (3) is rotatably connected with the connecting rod assembly (6), the inside of the moving block (103) is formed with the pin shaft slot (104), the bottom wall of the pin shaft slot (104) is bent to extend into the moving block (103) and is in the hook structure; The connecting rod assembly (6) includes the connecting rod body (601) which is symmetrically arranged and rotatably installed on the outer edge surface of the shaft rod (5), the bottom end of the connecting rod body (601) is internally formed with the shaft hole (603) for installing the shaft rod (5), the top ends of the opposite faces of the connecting rod body (601) are fixedly connected with the connecting shaft (602), and the connecting shaft (602) is movably arranged in the pin shaft slot (104).
2. A single link power switch actuator according to claim 1, wherein, The outer edge surface of the support sleeve (3) is symmetrically formed with the through groove (4) for the connecting shaft (602) to movably pass out.
3. A single link power switch actuator according to claim 1 wherein, The moving block (103) is movably installed in the support sleeve (3), and the bottom of the support sleeve (3) is centrally formed with the slot hole for the support column (102) to pass out.
4. A single link power switch actuator according to claim 1 wherein, The electromagnet b (2) is in the annular structure with the hollow inside for the support column (102) and the moving block (103) to pass out.
5. A single link power switch actuator according to claim 1 wherein, The outer edge surface of the support column (102) is sleeved with the spring (105), the bottom end of the spring (105) is fixedly connected with the electromagnet a (101), and the top end of the spring (105) movably abuts against the bottom of the support sleeve (3).