Backup protection breaker convenient to adjust and surge protector

Abstract

The utility model relates to the field of surge protector equipment, in particular to a backup protection breaker convenient to adjust and a surge protector. The backup protection breaker convenient to adjust is used for backup protection of a surge protector body and comprises a frame body and a breaking piece, the breaking piece is in sliding fit with a first loop end and a second loop end which are arranged at intervals, the second loop end comprises a movable electrode, a tensioning spring and a gasket, and the movable electrode is arranged on the frame body. The tension spring is located between the moving electrode and the gasket, the gasket is detachably matched with the frame body, and the moving electrode abuts against one side of the breaking piece under the action of the tension spring, so that the breaking piece abuts against the first loop end on the other side.

Description

Technical Field

[0001] The utility model relates to the field of surge protector equipment, in particular to a backup protection breaker and a surge protector which are easy to adjust. Background Art

[0002] In order to realize the active disconnecting function of the backup protection breaker of the surge protector, the backup protection breaker of the surge protector now controls the action of the electromagnetic release through the current transformer, and the action side of the electromagnetic release cooperates with the moving contact of the spacing structure arranged on the surge grounding circuit through the linkage mechanism. The action side of the electromagnetic release moves the moving contact to be separated from the surge grounding circuit through the linkage mechanism, thereby disconnecting the surge grounding circuit.

[0003] Since the breaking piece is abutted against the first loop end and the second loop end for forming a part of the surge grounding loop, the breaking piece can be moved to slide out of the gap between the first loop end and the second loop end. Therefore, there is no fixed structure between the breaking piece and the first loop end and the second loop end, such as traditional low-temperature welding materials, and dimensional errors or assembly error gaps are likely to occur between the breaking piece and the first loop end and the second loop end, that is, the first loop end and the second loop end cannot achieve reliable conduction of the surge grounding loop through the breaking piece. Utility Model Content

[0004] On the one hand, the utility model provides a backup protection breaker that is easy to adjust and can ensure the conduction of the surge grounding loop;

[0005] On the other hand, the utility model provides a surge protector.

[0006] The utility model provides an easily adjustable backup protection breaker, which is used for backup protection of a surge protector body, and includes a frame and a disconnecting piece. The disconnecting piece is slidably matched with a first circuit end and a second circuit end that are spaced apart. The second circuit end includes a moving electrode, a tensioning spring and a gasket. The tensioning spring is located between the moving electrode and the gasket. The gasket is detachably matched with the frame. Under the action of the tensioning spring, the moving electrode abuts against one side of the disconnecting piece, so that the disconnecting piece abuts against the first circuit end on the other side.

[0007] Furthermore, the gasket is connected to the frame by screws.

[0008] Furthermore, a slot is provided on the frame, the end of the screw is located in the slot, a through hole is provided on a side wall panel of the slot, the rod of the screw passes through the through hole and engages with the gasket located on the other side of the wall panel, and the gasket is pressed against the wall panel under the action of the screw.

[0009] Furthermore, it also includes a control component and a restraining member, the restraining member cooperates with the breaking member through a hook body and a slot, the breaking member cooperates with a breaking spring, and the control component rotates with the restraining member to disengage the hook body from the slot.

[0010] Furthermore, the control component includes a bracket, a coil assembly and a release spring. The bracket is a semi-enclosed structure with an opening on one side, and the bracket has a first end and a second end on both sides near the opening respectively. The restraint member has opposite hook ends and rotating ends respectively. The restraint member near the rotating end is rotatably matched with the bracket near the second end, and the release spring is provided between the restraint member and the bracket. The restraint member near the hook end can be offset with the bracket near the first end under the action of the magnetic field of the permanent magnet; the coil assembly is mounted on the bracket, and the coil assembly is connected to the secondary side of the transformer mounted on the surge grounding circuit of the surge protector.

[0011] Furthermore, the restraining member is provided with a release spring near the rotation axis and is connected to the control assembly.

[0012] Furthermore, the end of the second end of the bracket abuts against the restraining member near the second end, and the hook end and the rotating end of the restraining member are respectively located on both sides of the second end of the bracket, so that the hook end of the restraining member can be rotated to be close to the first end of the bracket, and one end of the release spring is connected to the restraining member between the rotating end and the second end of the bracket.

[0013] Furthermore, along the rotation axis direction of the restraining member, the end of the second end of the bracket is provided with clamping members at intervals, and the restraining member is located between the two clamping members.

[0014] Furthermore, an adjustment hole is provided on a sealing plate disposed opposite to the wall plate at the other side of the slot, and a notch on the end of the screw corresponds to the adjustment hole.

[0015] The surge protector provided by the utility model comprises a lightning protection element, wherein the lightning protection element is located on a surge grounding circuit in the easily adjustable backup protection breaker as described in any one of the above items.

[0016] Beneficial Effects

[0017] The moving electrode in the present scheme is abutted against one side of the disconnecting piece under the action of the tensioning spring, and the abutting force causes the disconnecting piece to abut against the first loop end on the other side, and the first loop end and the second loop end are simultaneously contacted with the disconnecting piece by the movement of the moving electrode, so as to compensate for the errors during assembly or the dimensional errors generated during the processing of each component, thereby ensuring the conduction of the surge grounding loop, and under this premise, the gasket and the frame are detachable and matched, and the elastic force of the tensioning spring on the moving electrode is changed by changing the size of the gasket, thereby changing the size of the friction force between the moving electrode, the disconnecting piece and the first loop end, so as to adjust the product before the product is finalized, so as to avoid the disconnecting piece being unable to be separated from the first loop end and the second loop end in time due to excessive friction, resulting in failure of the backup protection, or to compensate for the errors during assembly or the dimensional errors generated during the processing of each component by changing the size of the gasket after the product is finalized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of a backup protection breaker that is easy to adjust provided by an embodiment of the utility model;

[0020] Figure 2 It is a partial structural schematic diagram of the second loop end provided by an embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of the local structure of the control component provided in an embodiment of the utility model.

[0022] Figure numbers: 1-first circuit end; 2-disconnecting piece; 3-second circuit end; 4-constraint; 5-frame; 6-slot; 7-adjustment hole; 8-screw; 9-wall plate; 10-through hole; 11-gasket; 12-tensioning spring; 13-coil assembly; 14-bracket; 15-permanent magnet; 16-release spring. DETAILED DESCRIPTION

[0023] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0024] Example

[0025] A backup protection breaker that is easy to adjust is used for backup protection of a surge protector body, comprising a frame 5 and a disconnecting piece 2. The disconnecting piece 2 is slidably matched with a first circuit end 1 and a second circuit end 3 that are spaced apart. The second circuit end 3 comprises a moving electrode, a tensioning spring 12 and a gasket 11. The tensioning spring 12 is located between the moving electrode and the gasket 11. The gasket 11 is detachably matched with the frame 5. Under the action of the tensioning spring 12, the moving electrode abuts against one side of the disconnecting piece 2 so that the disconnecting piece 2 abuts against the first circuit end 1 on the other side.

[0026] In order to realize the active disconnecting function of the backup protection breaker of the surge protector, the backup protection breaker of the surge protector now controls the action of the electromagnetic release through the current transformer, and the action side of the electromagnetic release cooperates with the moving contact of the spacing structure arranged on the surge grounding circuit through the linkage mechanism. The action side of the electromagnetic release moves the moving contact to be separated from the surge grounding circuit through the linkage mechanism, thereby disconnecting the surge grounding circuit.

[0027] Since the breaking piece 2 is now against the first loop end 1 and the second loop end 3 used to form a part of the surge grounding loop, the breaking piece 2 can be moved to slide out of the gap between the first loop end 1 and the second loop end 3. Therefore, there is no fixed structure between the breaking piece 2 and the first loop end 1 and the second loop end 3, such as traditional low-temperature welding materials. Size errors or assembly error gaps are prone to occur between the breaking piece 2 and the first loop end 1 and the second loop end 3, that is, the first loop end 1 and the second loop end 3 cannot achieve reliable conduction of the surge grounding loop through the breaking piece 2. To avoid the above problems, the position of the first loop end 1 in the present solution is relatively fixed, and the moving electrode of the second loop end 3 can move relative to the first loop end 1. Therefore, the spacing size between the first loop end 1 and the second loop end 3 can be changed. The first loop end 1 and the second loop end 3 are simultaneously in contact with the breaking piece 2 by moving the moving electrode, so as to compensate for errors during assembly or size errors generated by various components during processing.

[0028] Specifically, the tensioning spring 12 is located between the moving electrode and the gasket 11. The moving electrode is pressed against one side of the disconnecting piece 2 under the action of the tensioning spring 12. The pressing force causes the disconnecting piece 2 to press against the first circuit end 1 on the other side, thereby realizing the conduction of the surge grounding circuit. Under this premise, considering that the pressing force between the moving electrode, the disconnecting piece 2 and the first circuit end 1 is related to the friction force, when the pressing force is too large, the friction force between the moving electrode, the disconnecting piece 2 and the first circuit end 1 may be greater than the force driving the disconnecting piece 2 to move, resulting in the inability to disconnect the surge grounding circuit in time. Therefore, the gasket 11 of the present scheme is detachable and matched with the frame 5. Therefore, the elastic force of the tensioning spring 12 on the moving electrode can be changed by changing the size of the gasket 11, thereby changing the size of the pressing force between the moving electrode, the disconnecting piece 2 and the first circuit end 1, so as to adjust the product before the product is finalized, or compensate for the assembly error or the dimensional error of each component during processing by changing the size of the gasket 11 after the product is finalized.

[0029] In an optional implementation, the gasket 11 is connected to the frame 5 via screws 8 .

[0030] A through hole 10 is provided on the wall plate 9 of the frame 5, and the rod of the screw 8 passes through the through hole 10. The tensioning spring 12, the moving electrode and the gasket 11 are located on one side of the wall plate 9, and the end of the screw 8 is located on the other side of the wall plate 9. The rod of the screw 8 is engaged with the gasket 11, so that the gasket 11 is abutted against the frame 5. When the gasket 11 needs to be replaced, the screw 8 is rotated to disengage from the gasket 11. At this time, the screw 8 remains connected to the wall plate 9, which simplifies the disassembly and assembly process of the gasket 11.

[0031] In an optional embodiment, a slot 6 is provided on the frame 5, and the end of the screw 8 is located in the slot 6. A through hole 10 is provided on a side wall panel 9 of the slot 6. The rod of the screw 8 passes through the through hole 10 and engages with a gasket 11 located on the other side of the wall panel 9. The gasket 11 is pressed against the wall panel 9 under the action of the screw 8.

[0032] The slot 6 constrains the screw 8 along its axial direction so that the screw 8 can only rotate in the slot 6. One end of the slot 6 has an opening. A wall plate 9 on the frame 5 used to form the slot 6 is provided with a slot to form a through hole 10. The slot extends to an edge of one end of the wall plate 9 close to the opening of the slot 6, and an opening is formed on the end face of the wall plate 9 so that when the screw 8 is placed into the slot 6 through the opening, the rod of the screw 8 can be placed into the through hole 10 through the opening.

[0033] In an optional embodiment, it also includes a control component and a restraint 4, the restraint 4 cooperates with the breaking piece 2 through a hook body and a slot 6, the breaking piece 2 cooperates with a breaking spring, and the control component and the restraint 4 rotate to cooperate so that the hook body and the slot 6 are disengaged.

[0034] The control component in this scheme has the function of a general electromagnetic release, and the control component rotates with the constraint part 4. The constraint part 4 has the function of the action end of the general electromagnetic release. Compared with the existing scheme in which the action end of the electromagnetic release needs to be linked with the disconnecting part 2 through a linkage mechanism, the constraint part 4 in this scheme directly cooperates with the disconnecting part 2 through a hook structure. The control component rotates with the constraint part 4, so that the constraint part 4 rotates until the hook structure between it and the disconnecting part 2 is disengaged, and the disconnecting part 2 moves to be disengaged from the surge grounding circuit under the action of the disconnecting spring, thereby disconnecting the surge grounding circuit.

[0035] In an optional embodiment, the control component includes a bracket 14, a coil assembly 13 and a release spring 16, the bracket 14 is a semi-enclosed structure with an opening on one side, the bracket 14 has a first end and a second end on both sides near the opening, the restraint 4 has relative hook ends and rotating ends, the restraint 4 near the rotating end is rotatably matched with the bracket 14 near the second end, and a release spring 16 is provided between the restraint 4 and the bracket 14, the restraint 4 near the hook end can be offset with the bracket 14 near the first end under the action of the magnetic field of the permanent magnet 15; the coil assembly 13 is mounted on the bracket 14, and the coil assembly 13 is connected to the secondary side of the transformer mounted on the surge grounding circuit of the surge protector.

[0036] The bracket 14 is C-shaped, with an opening on one side, and the two sides of the opening are respectively a first end and a second end, the first end and the second end are respectively against the constraint member 4, wherein the second end can form a rotational fit with the rotating end of the constraint member 4, and the first end adsorbs the constraint member 4 under the action of the magnetic field to make it against each other. The hook body part at the hook body end of the constraint member 4 cooperates with the groove body part on the breaking member 2, so that the constraint member 4 constrains the breaking member 2 along its moving direction.

[0037] Preferably, the abutment position between the first end of the bracket 14 and the restraining member 4 is located between the hook end and the rotating end of the restraining member 4 .

[0038] The coil assembly 13 includes a sleeve and a wire wound on the sleeve. The sleeve is mounted on a bracket 14 between a first end and a second end. The wire is connected to the secondary side of a current transformer. The surge protector in this scheme is used in an AC circuit. Therefore, the direction of the magnetic field generated by the coil assembly 13 changes with the current. When the direction of the magnetic field is opposite to the direction of the magnetic field generated by the permanent magnet 15, the magnetic field generated by the coil assembly 13 offsets the magnetic field generated by the permanent magnet 15 or the two offset and weaken until the suction force on the constraint 4 is less than the elastic force of the release spring 16, so that the constraint 4 rotates under the action of the release spring 16.

[0039] In an optional embodiment, a release spring 16 is provided on the restraining member 4 near the rotation axis and connected to the control assembly.

[0040] In an optional embodiment, the end of the second end of the bracket 14 abuts against the second end of the restraint 4, and the hook end and the rotating end of the restraint 4 are respectively located on both sides of the second end of the bracket 14, so that the hook end of the restraint 4 can be rotated to the first end close to the bracket 14, and one end of the release spring 16 is connected to the restraint 4 between the rotating end and the second end of the bracket 14.

[0041] The end of the second end of the bracket 14 forms a fulcrum structure, which abuts against the constraint member 4. The area where the constraint member 4 abuts against the first end is located on one side of the end of the second end of the bracket 14. The rotating end of the constraint member 4 extends from the other side of the end of the second end of the bracket 14. One end of the release spring 16 is connected to the constraint member 4 between the rotating end and the second end of the bracket 14, so that the constraint member 4 and the end of the second end of the bracket 14 cooperate to form a seesaw structure. The hook end of the constraint member 4 and the area abutting against the first end of the bracket 14 are located on one side of the second end of the bracket 14, and the release spring 16 and the rotating end of the constraint member 4 are located on the other side of the second end of the bracket 14. When the constraint member 4 abuts against the first end of the bracket 14 The release spring 16 is in a stretched state, and the magnetic attraction and the elastic force of the release spring 16 are respectively on both sides of the second end of the bracket 14, so that the end of the constraint 4 and the second end of the bracket 14 are pressed tightly. When the magnetic field generated by the coil assembly 13 offsets the magnetic field generated by the permanent magnet 15 or the two offset and weaken to the point where the attraction on the constraint 4 is less than the elastic force of the release spring 16, the release spring 16 pulls the rotating end of the constraint 4 to make the constraint 4 rotate around the second end of the bracket 14, so that the constraint 4 is separated from the first end of the bracket 14, and the hook end of the constraint 4 is also detached from the disconnecting piece 2. On the premise of achieving the rotational coordination between the constraint 4 and the bracket 14, the rotation structure is simplified to avoid the introduction of a rotating shaft or other structural parts.

[0042] In an optional embodiment, along the direction of the rotation axis of the restraining member 4, the end of the second end of the bracket 14 is provided with clamping members at intervals, and the restraining member 4 is located between the two clamping members.

[0043] The function of the clamping member is to constrain the constraint member 4 to prevent the constraint member 4 from moving along the axial direction of rotation.

[0044] In an optional embodiment, an adjustment hole 7 is provided on a sealing plate disposed opposite to the wall plate 9 on the other side of the slot 6 , and a notch on the end of the screw 8 corresponds to the adjustment hole 7 .

[0045] The surge protector provided by the utility model comprises a lightning protection element, and the lightning protection element is located on a surge grounding loop.

[0046] It should be noted that any of the above embodiments is illustrative of the present invention rather than limiting the present invention, and that those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets should not be constructed as a limitation on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of multiple such elements. The present invention may be implemented by means of hardware comprising several different elements and by means of appropriately programmed computers. In a unit claim that lists several devices, several of these devices may be embodied by the same hardware item. The use of the words primary, secondary, previous, and next, etc. does not indicate any order. These words may be interpreted as names.

[0047] The above implementation modes are only suitable for illustrating the present invention, but not for limiting the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be limited by the claims.

Claims

1. An easily adjustable backup protection breaker for backup protection of a surge protector body, characterized in that: The invention comprises a frame (5) and a disconnecting piece (2); the disconnecting piece (2) is slidably matched with a first loop end (1) and a second loop end (3) which are arranged at intervals; the second loop end (3) comprises a movable electrode, a tensioning spring (12) and a gasket (11); the tensioning spring (12) is located between the movable electrode and the gasket (11); the gasket (11) is detachably matched with the frame (5); the movable electrode abuts against one side of the disconnecting piece (2) under the action of the tensioning spring (12), so that the disconnecting piece (2) abuts against the first loop end (1) on the other side.

2. The easily adjustable backup protection breaker according to claim 1, characterized in that: The gasket (11) is connected to the frame (5) via screws (8).

3. The easily adjustable backup protection breaker according to claim 2, characterized in that: The frame (5) is provided with a slot (6), the end of the screw (8) is located in the slot (6), a through hole (10) is provided on a side wall plate (9) of the slot (6), the rod of the screw (8) passes through the through hole (10) and engages with the gasket (11) located on the other side of the wall plate (9), and the gasket (11) is abutted against the wall plate (9) under the action of the screw (8).

4. The easily adjustable backup protection breaker according to claim 1, characterized in that: It also comprises a control component and a restraining member (4), wherein the restraining member (4) cooperates with the breaking member (2) via a hook body and a slot (6), the breaking member (2) cooperates with a breaking spring, and the control component cooperates with the restraining member (4) in rotation so that the hook body is disengaged from the slot (6).

5. The easily adjustable backup protection breaker according to claim 4, characterized in that: The control component comprises a bracket (14), a coil component (13) and a release spring (16); the bracket (14) is a semi-enclosed structure with an opening on one side; the bracket (14) has a first end and a second end on both sides close to the opening; the restraining member (4) has a hook end and a rotating end opposite to each other; the restraining member (4) is rotatably matched with the bracket (14) close to the second end at the restraining member (4) close to the rotating end; and the release spring (16) is arranged between the restraining member (4) and the bracket (14); the restraining member (4) close to the hook end can be offset against the bracket (14) close to the first end under the action of the magnetic field of the permanent magnet (15); the coil component (13) is sleeved on the bracket (14); and the coil component (13) is connected to the secondary side of a mutual inductor sleeved on a surge grounding circuit of a surge protector.

6. The easily adjustable backup protection breaker according to claim 5, characterized in that: The restraining member (4) is provided with a release spring (16) near the rotation axis and is connected to the control component.

7. The easily adjustable backup protection breaker according to claim 5, characterized in that: The end of the second end of the bracket (14) abuts against the restraining member (4) near the second end, and the hook end and the rotating end of the restraining member (4) are respectively located on both sides of the second end of the bracket (14), so that the hook end of the restraining member (4) can be rotated to be close to the first end of the bracket (14), and one end of the release spring (16) is connected to the restraining member (4) between the rotating end and the second end of the bracket (14).

8. The easily adjustable backup protection breaker according to claim 7, characterized in that: In the direction of the rotation axis of the restraining member (4), the end of the second end of the bracket (14) is provided with a clamping member at intervals, and the restraining member (4) is located between the two clamping members.

9. The easily adjustable backup protection breaker according to claim 3, characterized in that: An adjustment hole (7) is provided on a sealing plate disposed opposite to the wall plate (9) on the other side of the slot (6), and a notch on the end of the screw (8) corresponds to the adjustment hole (7).

10. A surge protector, comprising a lightning protection element, characterized in that: The lightning protection element is located on the surge grounding loop in the easily adjustable backup protection breaker as described in any one of claims 1-9.

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