Manual opening device of eddy current repulsion switch

Abstract

The utility model discloses a manual opening device of an eddy current repulsion switch, which comprises a vacuum arc-extinguishing chamber connected with one end of an eddy current repulsion operating mechanism, the other end of the eddy current repulsion operating mechanism is connected with an opening and closing pull rod, and the manual opening device further comprises an opening shaft pin inserted on the opening and closing pull rod; one end of the opening component is provided with a rotating shaft, and the other end rotates around the rotating shaft to contact with or be far away from the opening shaft pin; the control part is used for driving the opening part to rotate; according to the utility model, by controlling the control part and driving the opening part to drive the closing and opening pull rod to act, the purpose of manual switching-off and switching-off is achieved when a control system loses power, control fails and an eddy current repulsion coil breaks down, and stable operation of an electric power system is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a manual opening device for an eddy current repulsion switch. Background Art

[0002] At present, the eddy current repulsion switch device for fast switching of power system is becoming more and more popular due to its characteristics of fast disconnection of faults. However, the current eddy current repulsion switch device does not really solve the purpose of completing manual disconnection when the control system loses power, fails to control, and the eddy current repulsion coil fails, which will affect the stable operation of the power system. Utility Model Content

[0003] The main purpose of the utility model is to provide a manual opening device of an eddy current repulsion switch, aiming to solve the existing technical problems.

[0004] To achieve the above object, the utility model provides a manual opening device for an eddy current repulsion switch, comprising a vacuum interrupter, wherein the vacuum interrupter is connected to one end of an eddy current repulsion operating mechanism, and the other end of the eddy current repulsion operating mechanism is connected to a closing and opening pull rod, and further comprising:

[0005] The opening switch shaft pin is inserted on the closing and opening switch pull rod;

[0006] The opening switch component has a rotating shaft at one end and the other end rotates around the rotating shaft to contact or move away from the opening switch shaft pin; and

[0007] The control component is used to drive the opening component to rotate.

[0008] Furthermore, the opening switch shaft pin passes through the closing and opening switch pull rod and has two ends extending outwards. When the switch is opened, the end of the opening switch component abuts against the extended section of the opening switch shaft pin.

[0009] Furthermore, the control component comprises a gate-opening cam abutting against the gate-opening component, the gate-opening cam is mounted on a bracket, and the gate-opening cam is controlled by a gate-opening handle.

[0010] Furthermore, a return spring is provided on the rotating shaft.

[0011] Furthermore, a slot for accommodating a closing and opening pull rod is provided at the end of the opening and closing component.

[0012] Furthermore, the opening brake component is an opening brake leaf spring.

[0013] The beneficial effects of the utility model are embodied in:

[0014] In the utility model, by manipulating the control component, the opening component is driven to drive the closing and opening pull rod to move, so as to achieve the purpose of manually cutting off the switch when the control system loses power, the control fails, or the eddy current repulsion coil fails, thereby ensuring the stable operation of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view schematic diagram of the structure of the opening device of the utility model;

[0016] Figure 2 It is a three-dimensional schematic diagram of the local structure of the opening device of the utility model.

[0017] Description of reference numerals:

[0018] 1. Opening handle; 2. Opening cam; 3. Opening leaf spring; 4. Reset spring; 5. Opening shaft pin; 6. Closing and opening pull rod; 7. Eddy current repulsion operating mechanism; 8. Vacuum arc extinguishing chamber. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 and 2 The utility model provides a manual opening device for an eddy current repulsion switch, comprising a vacuum interrupter 8, wherein the vacuum interrupter 8 is connected to one end of an eddy current repulsion operating mechanism 7, and the other end of the eddy current repulsion operating mechanism 7 is connected to a closing and opening pull rod 6, and further comprising:

[0021] The opening shaft pin 5 is inserted on the closing and opening pull rod 6;

[0022] The opening member has a rotating shaft at one end and the other end rotates around the rotating shaft to contact or move away from the opening shaft pin 5; and

[0023] The driving component is used to drive the opening component to rotate.

[0024] This embodiment controls the control component to drive the opening component to drive the closing and opening pull rod 6 to move, thereby achieving the purpose of manually disconnecting the switch when the control system loses power, fails, or the eddy current repulsion coil fails, thereby ensuring the stable operation of the power system.

[0025] In one embodiment, the opening shaft pin 5 passes through the closing and opening pull rod 6 and the two ends extend outward. When the switch is opened, the end of the opening component abuts against the extended section of the opening shaft pin 5. The end of the opening shaft pin 5 is limited to the closing and opening pull rod 6 and contacts the two ends of the opening shaft pin 5, ensuring the stability of the contact between the opening leaf spring 3 and the opening shaft pin 5, thereby ensuring the stability of the closing and opening pull rod 6 during the opening process.

[0026] In one embodiment, the driving component includes a trip cam 2 abutting against the trip component, the trip cam 2 is mounted on a bracket, and the trip cam 2 is controlled by a trip handle 1. By manually pulling down the trip handle 1, when the trip cam 2 driven by the trip handle 1 rotates a certain angle, the trip leaf spring 3 is subjected to the pressure of the trip cam 2, and applies a certain pressure to the trip shaft pin 5, and the pressure is converted into a trip tension through the closing and opening pull rod 6. When this tension exceeds the closing holding force of the eddy current repulsion operating mechanism 7, the vacuum interrupter 8 is disconnected, thereby realizing the device tripping.

[0027] In one embodiment, a return spring 4 is provided on the rotating shaft. The rotation of the opening cam 2 will generate a certain torque on the opening plate spring 3, and the return spring 4 generates an opposite torque on the opening plate spring 3. The torque generated by the return spring 4 is much smaller than the torque generated by the opening cam 2, and only provides torque for the sliding contact between the opening plate spring 3 and the opening cam 2.

[0028] In one embodiment, a slot for accommodating the closing and opening pull rod 6 is provided at the end of the opening component.

[0029] In one embodiment, the opening brake component is an opening brake leaf spring 3. The opening brake leaf spring 3 may also adopt other plate-shaped structures, such as an arc-shaped or straight plate-shaped structure.

[0030] The specific working process of the present application is as follows: the initial state is closing. When emergency opening is required, the present invention can manually pull down the opening handle 1. When the opening cam 2 driven by the opening handle 1 rotates a certain angle, the opening leaf spring 3 is subjected to the pressure of the opening cam 2 and applies a certain pressure to the opening shaft pin 5. The pressure is converted into an opening pulling force through the closing and opening pull rod 6. When this pulling force exceeds the closing holding force of the eddy current repulsion operating mechanism 7, the vacuum interrupter 8 is disconnected, and the opening is maintained by the eddy current repulsion operating mechanism 7, thereby realizing the opening of the device.

[0031] When the opening handle 1 is in the original position (not pulled down), no matter whether the switch is open or closed, the closing and opening pull rod 6 or the opening shaft pin 5 does not contact the opening leaf spring 3, which does not affect the normal opening and closing operation of the switch.

[0032] When the switch is opened, the opening handle 1 can be returned to the original position. At this time, due to the action of the reset spring 4, the opening leaf spring 3 returns to the initial position of the opening leaf spring 3 and breaks away from the contact with the opening shaft pin 5, waiting for the next opening operation.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that satisfy both A and B. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A manual opening device for an eddy current repulsion switch, comprising a vacuum interrupter (8), wherein the vacuum interrupter (8) is connected to one end of an eddy current repulsion operating mechanism (7), and the other end of the eddy current repulsion operating mechanism (7) is connected to a closing and opening pull rod (6), characterized in that: Also includes, The opening switch shaft pin (5) is inserted on the closing and opening switch pull rod (6); A switch-off component has a rotating shaft at one end and the other end rotates around the rotating shaft to contact or move away from the switch-off shaft pin (5); and The control component is used to drive the opening component to rotate.

2. A manual opening device for an eddy current repulsion switch according to claim 1, characterized in that: The opening switch shaft pin (5) passes through the closing and opening switch pull rod (6) and has two ends extending outwards. When the switch is opened, the end of the opening switch component abuts against the extended section of the opening switch shaft pin (5).

3. A manual opening device for an eddy current repulsion switch according to claim 1, characterized in that: The control component comprises a gate opening cam (2) abutting against the gate opening component; the gate opening cam (2) is mounted on a bracket, and the gate opening cam (2) is controlled by a gate opening handle (1).

4. A manual opening device for an eddy current repulsion switch according to claim 1, characterized in that: A return spring (4) is provided on the rotating shaft.

5. A manual opening device for an eddy current repulsion switch according to claim 1, characterized in that: A slot for accommodating a closing and opening pull rod (6) is provided at the end of the opening and closing component.

6. A manual opening device for an eddy current repulsion switch according to claim 1, characterized in that: The opening brake component is an opening brake leaf spring (3).

Images