CN108933066B

CN108933066B - Integrated tripping and arc extinguishing indication remote signaling mechanism of surge protector and surge protector

Info

Publication number: CN108933066B
Application number: CN201710369701.6A
Authority: CN
Inventors: 翟春坡; 陈科企; 吴上财
Original assignee: Dinkle M&e China Co ltd; Shanghai Chenzhu Instrument Co ltd; Dinkle Enterprise Co Ltd
Current assignee: Dinkle M&e China Co ltd; Shanghai Chenzhu Instrument Co ltd; Dinkle Enterprise Co Ltd
Priority date: 2017-05-23
Filing date: 2017-05-23
Publication date: 2024-02-02
Anticipated expiration: 2037-05-23
Also published as: CN108933066A

Abstract

The invention discloses a tripping and arc extinguishing indication remote signaling integrated mechanism for a surge protector and the surge protector, wherein the tripping and arc extinguishing indication remote signaling integrated mechanism comprises: the surge protector comprises a bracket capable of accommodating at least one metal oxide varistor, a functional slide block assembly arranged in the bracket in a sliding manner, and a bridging elastic piece, wherein a first pin of the surge protector is connected with a first electrode pin of the metal oxide varistor through the bridging elastic piece in a low-temperature welding manner, the bracket is provided with a partition plate, the functional slide block assembly comprises a slide block, a first pressure rod, a second pressure rod and an elastic piece, the slide block is provided with a slide block wire breakage chamfer, and one end of the first pressure rod and one end of the second pressure rod are both rotationally fixed on the slide block; in a normal state, the bridging elastic sheet is welded with the first electrode pin of the metal oxide varistor, the sliding block is propped against the bridging elastic sheet to be kept at a first position, the elastic piece is extruded between the first pressure rod and the second pressure rod, and the bridging elastic piece has resilience.

Description

Integrated tripping and arc extinguishing indication remote signaling mechanism of surge protector and surge protector

Technical Field

The invention relates to a surge protector, in particular to a tripping and arc extinguishing indication remote signaling integrated mechanism for the surge protector.

Background

Surge protectors are commonly used in electrical lines in homes, offices, industrial sites, etc. to prevent damage to electrical equipment from transient overvoltages in the line. When the peak current or voltage is suddenly generated in the electric loop or the communication line due to the interference of the outside, the surge protector can conduct and shunt in a very short time, so that the damage of the surge to other equipment in the loop is avoided.

In the most commonly used surge protectors, an element called a Metal Oxide Varistor (MOV) is included to divert excess voltage. The metal oxide varistor has a very high resistance under normal operating conditions and is thus essentially in an open circuit state, whereas when the voltage in the circuit exceeds a predetermined value, for example in the event of a lightning strike or the like, its resistance drops sharply and is thus in a near-conducting state, conducting a large amount of current, eliminating the excess voltage.

However, after a long period of use, the metal oxide varistor may deteriorate and thus may cause a heat generation phenomenon, and in order to prevent the metal oxide varistor from being damaged due to overheating and to prevent disasters such as fire disaster due to temperature rise, a trip mechanism is generally provided in the surge protector to disconnect the metal oxide varistor from the circuit when the temperature rises.

Fig. 14 shows a trip mechanism 100 for a surge protector disclosed in chinese patent 201110346844.8, which includes a bracket 110 for accommodating a metal oxide varistor 200, a pivot 111 is provided at an upper right corner of the bracket 110, a trip bar 120 is pivotally provided on the bracket 110 about the pivot 111, and an end of the trip bar 120 remote from the pivot 111 is a connection end. The slider 130 is slidably disposed on the upper side of the bracket 110. One end of the biasing spring 140 is engaged with the right end of the slider 130 and the other end is engaged with the pivot 111. Under normal operating conditions, the connecting end of the trip bar 120 is soldered to one electrode 210 of the metal oxide varistor by means of a low temperature solder (not shown), and the edge of the connecting end rests against the inclined surface (not shown) of the slider 130, so that the slider 130 has a tendency to slide in the direction of the pivot 111 under the action of the biasing spring 140. When the internal temperature of the surge protector rises and the low-temperature solder melts, the connection between the trip bar 120 and the metal oxide varistor electrode is broken, and the trip bar 120 cannot play a role of blocking the sliding block 130; the slider 130 slides rightward by the biasing spring 140, and at the same time, the inclined surface of the slider 130 pushes the trip bar 120 upward, so that the trip bar 120 rotates in a clockwise direction about the pivot. A further pivot 113 is also formed on the underside of the bracket 110, via which pivot 113 the pendulum 150 is pivotably arranged on the bracket 110. One end of the swing lever 150 forms a switch triggering portion 151 for controlling a remote control switch (not shown). When the slider 130 slides to the right, the swing link will be rotated clockwise about the pivot to trigger the remote control switch.

The conventional surge protector tripping structure has the following problems: the sliding block, the tripping rod and the biasing spring are all positioned on the upper side of the bracket, so that the height dimension of the surge protector is increased; after the trip bar trips, the trip bar rotates clockwise around the pivot, and the height dimension is further increased. When the tripping structure triggers the remote control switch, the tripping structure is realized by shifting the swing rod through the sliding block, and the structure is complex.

Disclosure of Invention

The invention provides a tripping and arc extinguishing indication remote signaling integrated mechanism for a surge protector, which can effectively reduce the height size of the surge protector and can integrally realize five functions of tripping, wire breakage, arc shielding, state indication and remote signaling triggering. The invention also provides a trip comprising the trip and the arc extinction indicates the surge protector of the remote signaling integrated mechanism.

According to one aspect of the present invention, there is provided a trip arc extinguishing indication remote signaling integrated mechanism for a surge protector, the integrated mechanism comprising: the surge protector comprises a bracket capable of accommodating at least one metal oxide varistor, a functional sliding block assembly and a bridging elastic sheet, wherein the functional sliding block assembly is arranged in the bracket in a sliding manner; the support has the baffle, functional slider subassembly includes slider, first pressure pole, second pressure pole, elastic component, the slider is equipped with slider broken wire chamfer, first pressure pole one end and second pressure pole one end are all rotatory fixed on the slider. Under the normal state, the bridging elastic piece is welded with the first electrode pin of the metal oxide varistor, the sliding block is propped against by the bridging elastic piece and is kept at the first position, and the elastic piece is extruded between the first pressure rod and the second pressure rod; under the tripping state, the connection between the bridging elastic piece and the first electrode pin of the metal oxide varistor is disconnected, the bridging elastic piece rebounds and tilts, the extrusion force born by the elastic piece disappears, the resilience force of the elastic piece enables the first pressure rod and the second pressure rod to rotate reversely, the first pressure rod and the second pressure rod move against the partition plate of the bracket to push the sliding block to slide from the first position to the second position along the partition plate, and at the moment, the cutting angle of the sliding block broken wire of the sliding block is positioned between the first electrode pin and the bridging elastic piece.

Because under the tripping condition, the first pressure rod and the second pressure rod are in opposite directions and rotate along the partition plate of the bracket, the sliding block is pushed to slide from the first position to the second position along the partition plate, the rotation movement of the first pressure rod and the second pressure rod and the sliding movement of the sliding block are carried out in the same plane and are positioned in the bracket, and the whole mechanism can not increase the height and the length direction of the surge protector.

Preferably, a first pressure guide column is arranged at one end of the first pressure rod which is not fixed to the sliding block; one end of the second pressure rod, which is not fixed on the sliding block, is provided with a second pressure guide column; in a normal state, the first pressure guide strip of the bracket abuts against the first pressure guide column, the second pressure guide bar is propped against the second pressure guide column, and the sliding block is positioned at the first position; under the tripping state, the first pressure rod and the second pressure rod are in opposite directions under the action of resilience force of the elastic piece, the first pressure guide column moves against the first pressure guide strip of the support, and meanwhile, the second pressure guide column moves against the second pressure guide strip of the support, so that the sliding block is pushed to slide from the first position to the second position. The rotary motion of the first pressure rod and the second pressure rod can be quickly converted into the sliding motion of the sliding block, so that the sliding speed of the sliding block is improved.

Preferably, a guide groove is arranged on one surface of the sliding block, which is close to the bracket partition plate; the support is provided with a support wire breakage corner cut corresponding to the slide block wire breakage corner cut, and the partition plate of the support is provided with a guide strip; the guide bar of the support is matched with the guide groove of the sliding block, so that the sliding block slides to a second position from a first position along the guide bar, and in the second position, the broken wire cutting angle of the sliding block is attached to the broken wire cutting angle of the support. In the process that the sliding block slides from the first position to the second position, the sliding block wire breakage cutting angle and the bracket wire breakage cutting angle generate relative shearing movement, so that solder wire drawing and electric arc generated after the bridging elastic sheet is separated from the first electrode pin of the metal oxide varistor can be thoroughly cut off, and the cutting speed is high.

Preferably, a rotating column is arranged in the middle of the sliding block; one end of the first pressure rod and one end of the second pressure rod are rotationally fixed on the rotary column, and a scissor-type structure is formed.

Preferably, the elastic member has a bending structure and includes a bending main body portion, and a first fixing leg and a second fixing leg located at two ends of the main body portion; the first pressure guide column of the first pressure rod is axially provided with a first elastic piece mounting hole, and the second pressure guide column of the second pressure rod is axially provided with a second elastic piece mounting hole; the first fixed leg and the second fixed leg of the elastic piece are respectively correspondingly installed in the first elastic piece installation hole and the second elastic piece installation hole, so that the elastic piece is installed on the first pressure rod and the second pressure rod, the elastic piece is firmly installed, and meanwhile, the thickness of the functional sliding block assembly can be reduced.

Preferably, the surge protector has a housing, and the slider is generally arcuate and includes an upper arm and a lower arm.

Preferably, the housing has a viewing aperture, and a status indication opening is provided at the top of the bracket at a position corresponding to the viewing aperture; the top of the upper support arm is provided with a state indicating plate which is accommodated in a state indicating opening of the bracket and comprises a normal working state indicating area and a fault state indicating area, and the two indicating areas have different colors; when the sliding block is positioned at the first position, the state indicating plate is positioned at one end of the state indicating opening, and the normal working state indicating area is exposed through a window hole on the housing of the surge protector; the sliding block slides from the first position to the second position, the state indicating plate slides to the other end of the state indicating opening, and the fault state indicating area is exposed through a window hole on the surge protector shell.

Preferably, the surge protector is provided with a remote signaling switch, the bottom end of the bracket is provided with a remote signaling switch assembly groove, and a control part of the remote signaling switch extends into the bracket through the remote signaling switch assembly groove; a controllable remote signaling plate is arranged at the bottom of the lower support arm of the sliding block; when the sliding block is positioned at the first position, the controllable remote signaling plate extrudes the control part of the remote signaling switch, and the remote signaling switch is in a closed state; the sliding block slides from the first position to the second position, and the controllable remote signaling plate leaves the control part of the remote signaling switch.

Preferably, the side edge of the lower support arm of the sliding block forms an arc shielding part, and when the sliding block is positioned at the second position, the support, the broken wire cutting angle of the sliding block, the arc shielding part and the inner wall of the surge protector shell form a sealing area.

Because the status indication board, the controllable remote signaling board and the arc shielding part are uniformly arranged on the sliding block, an intermediate transmission part is not needed, the number of parts is reduced, the structure of the integrated mechanism for tripping and arc extinguishing indication and remote signaling is simplified, and the indication reliability is improved.

Preferably, the bridging elastic sheet is of an integrated bending structure and comprises a fixed end, a welding contact surface and a connecting arm positioned between the fixed end and the welding contact surface, the welding contact surface is welded and connected with a first electrode pin of the metal oxide varistor through low-temperature solder, and the fixed end is welded and connected with a first pin of the surge protector.

According to another aspect of the present invention, there is also provided a surge protector comprising a housing, a remote signaling switch, at least one metal oxide varistor, and the trip-to-arc-extinguishing indication remote signaling integrated mechanism described above.

In summary, the functional slider assembly is arranged in the bracket, after the functional slider assembly is tripped, the first pressure rod and the second pressure rod are driven by the resilience force of the elastic piece to rotate oppositely against the partition plate of the bracket, and then the rotary motion is rapidly converted into the linear motion of the slider under the pushing action of the first pressure guide bar and the second pressure guide bar on the bracket; the rotary motion of the pressure rod and the sliding motion of the sliding block are carried out in the same plane and are positioned in the bracket, and the whole mechanism can not increase the height and the length direction of the surge protector; in the process that the sliding block slides from the first position to the second position, the cutting angle of the broken wire of the sliding block and the cutting angle of the broken wire of the bracket generate relative shearing movement, so that solder wire drawing and electric arc generated after the bridging elastic sheet is separated from the first electrode pin of the metal oxide varistor can be thoroughly cut off, and the cutting speed is high; and the state indication function, the remote signaling indication function and the arc extinguishing function are synchronously realized, an intermediate conducting piece is not needed, the number of parts is reduced, the structure of the whole mechanism is simplified, and the indication reliability is improved.

Drawings

FIG. 1 is a schematic view showing the overall internal structure of a surge protector according to a first embodiment of the present invention;

FIG. 2A is a schematic view of the internal overall structure of the surge protector according to another aspect of the present invention;

FIG. 2B is a schematic view of the backside of the structure shown in FIG. 2A;

FIG. 3A is a schematic view of the front of a support structure;

FIG. 3B is a schematic view of the back of the support structure;

FIG. 4A is a schematic diagram of a bridging spring plate structure;

fig. 4B is a schematic diagram of a metal oxide varistor structure;

fig. 5A is a schematic structural view of a slider, fig. 5B is a schematic structural view of a first pressure rod, fig. 5C is a schematic structural view of a second pressure rod, and fig. 5D is a schematic structural view of an elastic member;

FIG. 6 is a schematic view of the structure of the surge protector in a normal operation state (first position);

FIG. 7 is a schematic diagram of the present surge protector in a fault condition (second position);

FIG. 8A is a schematic view of the overall internal structure of a second embodiment of a surge protector of the present invention;

FIG. 8B is a schematic view of the backside of the structure shown in FIG. 8A;

FIG. 9A is a schematic view of the front of a bracket structure of a second embodiment;

FIG. 9B is a schematic view of the backside of the bracket structure of the second embodiment;

FIG. 10A is a schematic diagram of a bridging dome structure according to a second embodiment;

fig. 10B is a schematic diagram of a metal oxide varistor according to a second embodiment;

FIG. 11A is a schematic structural view of a functional slider assembly according to a second embodiment;

FIG. 11B is an effect diagram of the functional slider assembly of the second embodiment mounted in a bracket;

fig. 12 is a schematic structural view (first position) of the surge protector of the second embodiment in a normal operation state;

fig. 13 is a schematic structural view of a surge protector in a fault state of the second embodiment (second position);

fig. 14 is a schematic structural view of a trip mechanism of a related art surge protector.

Symbol description:

conventional art

100 … trip mechanism;

110 … rack;

111 … pivot;

113 … pivot;

120 … trip bar;

130 … slider;

140 … bias spring;

150 … pendulum rod;

151 … switch triggering portion;

200 … metal oxide varistor;

210 … electrode;

the invention

2 … shell;

21 … aperture;

3 … metal oxide varistor;

31 … first electrode leg;

32 … second electrode leg;

4 … stent;

41 … first pin fixing groove;

410 … separator;

411 … status indicating opening;

42 … device placement slots;

43 … pin holes;

44 … second pin fixing groove;

45 … guide strips;

46 … first pressure guide strip;

47 … second pressure guide strips;

48 … remote signaling switch assembly slots;

cutting off and cutting the wire of the 49 … bracket;

5 … bridging spring plate;

51 … fixed end;

52 … weld contact surfaces;

53 … connecting arms;

54 … abutment;

6 … first pin;

7 … second pin;

8 … functional slider assembly;

81 … slide;

811 … slider wire breakage chamfer;

812 … status indicator board;

8121 … normal operating status indication region;

8122 … fault status indication region;

813 … controllable remote signaling board;

814 … arc-shielding portions;

815 … spin column;

816 … guide slots;

817 … upper arms;

818 … lower arm;

819 … recesses;

82 … first pressure lever;

821 … first rotary hole;

822 … first pressure guide post;

823 … first elastic member mounting holes;

83 … second pressure bar;

831 … second rotation holes;

832 … second pressure guide post;

833 … second spring mounting holes;

84 … spring;

841 … first fixed leg;

842 … second fixing legs;

843 … bending the body portion;

9 … remote signaling switch;

91 … control part.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the invention, so that those skilled in the art may better understand the invention and practice it.

As shown in fig. 1 to 7, according to a first embodiment of the present invention, the surge protector includes a housing 2, a trip arc extinguishing indication remote signaling integrated mechanism, a metal oxide varistor 3, a first pin 6, a second pin 7, and a remote signaling switch 9. The housing 2 is provided with a viewing aperture 21. The tripping and arc extinguishing indication remote signaling integrated mechanism comprises a bracket 4 for accommodating the metal oxide varistor 3, a functional sliding block assembly 8 slidingly arranged in the bracket 4 and a bridging elastic sheet 5. The first pin 6 is connected with the first electrode pin 31 of the metal oxide varistor 3 through the bridging spring 5 in a low-temperature welding way, and the second pin 7 is directly welded with the second electrode pin 32 of the metal oxide varistor 3. As shown in fig. 4B, the first electrode leg 31 of the metal oxide varistor 3 is sheet-shaped and laid flat on the metal oxide varistor surface.

As shown in fig. 3A and 3B, the support 4 is made of an insulating, high-temperature resistant material, and the support 4 is generally square-frame-shaped and divided into a support front surface and a support back surface by a partition 410 in the thickness direction. As shown in fig. 3A, a guide bar 45 with a certain length is arranged in the middle of the partition board 410 on the front surface of the bracket, and the pin holes 43 are formed in the partition board 410 and partition the guide bar 45; the edge of the partition 410 is provided with a first pressure guiding strip 46 and a second pressure guiding strip 47; the first pressure guide strip 46 and the second pressure guide strip 47 are disposed near one end of the guide strip 45, preferably both are symmetrically disposed about a straight line in which the guide strip 45 is located; the leg cut angle 49 is formed at the edge of the leg hole 43 on the side remote from the two pressure guide bars, and preferably, the side edge of the leg hole 43 itself serves as the leg cut angle 49. As shown in fig. 3B, a device placement groove 42 is provided on the back surface of the holder. The top of the bracket 4 is provided with a status indication opening 411 corresponding to the position of the viewing window 21 of the housing 2, the bottom of the bracket 4 is provided with a remote signaling switch assembly groove 48, the lower left side of the bracket is provided with a first pin fixing groove 41, and the lower right side is provided with a second pin fixing groove 44.

As shown in fig. 2A, 2B, 3A, 3B, the first pin 6 is mounted in the first pin fixing groove 41, the second pin 7 is mounted in the second pin fixing groove 44, and the control part 91 of the remote signaling switch 9 protrudes into the inside of the bracket 4 through the remote signaling switch mounting groove 48. The control unit 91 of the remote signaling switch 9 may be a control tongue or a control button. The metal oxide varistor 3 is disposed in the device mounting groove 42, the first electrode leg 31 thereof extends to the front of the bracket through the pin hole 43 to be soldered with the soldering contact surface 52 of the bridging elastic sheet 5, and the soldering plane of the first electrode leg 31 and the soldering contact surface 52 is parallel to the plane of the partition 410.

As shown in fig. 4A, the bridging elastic sheet 5 is an integrated structure formed by reversely bending both ends of one strip-shaped sheet body, preferably an integrated metal elastic sheet, and can generate resilience after deformation. The bridging elastic piece 5 includes a fixed end 51 welded to the first lead 6, a welded contact surface 52 welded to the first electrode leg 31 of the metal oxide varistor 3 by low-temperature solder, and a connecting arm 53 positioned between the fixed end 51 and the welded contact surface 52, and the end of the welded contact surface 52 is tilted toward the connecting arm 53 to form an abutting portion 54. The fixed end 51 of the bridging spring 5 extends into the first pin fixing groove 41 of the bracket 4 and is welded with the first pin 6. In a normal operating state, the bridging elastic sheet 5 is welded and connected with the first electrode pin 31 of the metal oxide varistor 3 in an elastically deformed state. When a fault occurs, the metal oxide varistor 3 generates high temperature, the low-temperature solder between the first electrode leg 31 and the bridging dome 5 melts, the connection between the first electrode leg 31 and the bridging dome 5 is broken, and the bridging dome 5 rebounds and warps.

As shown in fig. 2A, 5B, 5C, and 5D, the functional slider assembly 8 is mounted in the bracket 4, and includes: the sliding block 81, the first pressure rod 82, the second pressure rod 83 and the elastic piece 84 are rotationally fixed on the sliding block 81, and a sliding block broken wire cutting angle 811 is arranged in the middle of the sliding block 81.

One end of the first pressure rod 82, which is not fixed to the slider 81, is provided with a first pressure guide post 822; the end of the second pressure rod 83 not fixed to the slider 81 is provided with a second pressure guide post 832. In a normal state, the bridging elastic piece 5 is welded to the first electrode leg 31 of the metal oxide varistor 3, the sliding block 81 is propped against the abutting portion 54 of the bridging elastic piece 5 to be kept at the first position, the bridging elastic piece 5 has a resilience force, the elastic piece 84 is pressed between the first pressure rod 82 and the second pressure rod 83 to be in a pre-tightening state, the first pressure guide strip 46 of the bracket 4 is propped against the first pressure guide post 822, and the second pressure guide strip 47 is propped against the second pressure guide post 832; when a fault occurs, the metal oxide varistor 3 generates high temperature, the low-temperature solder between the first electrode leg 31 and the bridging elastic sheet 5 melts, the connection between the first electrode leg 31 and the bridging elastic sheet 5 is broken, the bridging elastic sheet 5 rebounds and tilts to exert no pushing force on the sliding block 81, the extrusion force exerted by the elastic piece disappears, the resilience force of the elastic piece enables the first pressure rod 82 and the second pressure rod 83 to rotate against the partition 410 of the bracket 4 in opposite directions, the first pressure guide post 822 moves against the first pressure guide bar 46 of the bracket 4, meanwhile, the second pressure guide post 832 moves against the second pressure guide bar 47 of the bracket 4, the first pressure guide bar 46 and the second pressure guide bar 47 of the bracket 4 generate pushing force on the first pressure guide post 822 and the second pressure guide post 832 respectively, so as to push the sliding block 8 to slide along the partition 410 from the first position to the second position, and at the moment, the sliding block wire cutting angle 811 is positioned between the first electrode leg 31 and the bridging elastic sheet 5. Under the tripping state, the first pressure rod 82 and the second pressure rod 83 rotate oppositely against the partition plate 410 of the bracket 4, and the rotary motion is rapidly converted into the linear motion of the sliding block 81 through the pushing action of the first pressure guide strip 46 and the second pressure guide strip 47 on the bracket 4, so that the sliding speed of the sliding block 81 is high, the rotary motion of the pressure rods 82 and 83 and the sliding motion of the sliding block 81 are carried out in the same plane and are positioned in the bracket 4, and the height and the length dimension of the surge protector cannot be increased by the whole mechanism.

A guide groove 816 is provided on a surface of the slider 81 abutting against the bracket partition 410. The slider broken wire cut angle 811 is formed on one side of the middle portion of the slider 81 near the bridging elastic piece 5, the side of the slider broken wire cut angle 811 facing the bridging elastic piece 5 is a slope surface, and the bottom edge of the slope surface is abutted against the partition 410 of the bracket 4. During the sliding of the slider 81 from the first position to the second position, the guide bar 45 of the bracket 4 cooperates with the guide groove 816 of the slider 81 to guide the sliding of the slider 81; the slider wire-breaking chamfer 811 and the bracket wire-breaking chamfer 49 undergo relative shearing movement, so that solder wire drawing and arc generated after the bridging elastic piece 5 is separated from the first electrode leg 31 of the metal oxide varistor 3 can be thoroughly cut off, and the cutting speed is high.

The middle part of the sliding block 81 is provided with a concave part 819, and a rotary column 815 is arranged in the concave part 819; one end of the first pressure rod 82 rotationally fixed on the sliding block 81 is a first rotational fixed end, one end of the second pressure rod 83 rotationally fixed on the sliding block 81 is a second rotational fixed end, the first rotational fixed end of the first pressure rod 82 is provided with a first rotational hole 821, and the second rotational fixed end of the second pressure rod 83 is provided with a second rotational hole 831; the first rotating fixed end of the first pressure rod 82 and the second rotating fixed end of the second pressure rod 83 are overlapped and then are arranged in the concave portion 819 of the sliding block 81, and meanwhile, the rotating column 815 of the sliding block 81 passes through the rotating holes 821 and 831 of the two pressure rods, so that the two pressure rods 82 and 83 are in a scissor type structure and can rotate by taking the rotating column as an axis. Therefore, the thickness of the functional sliding block assembly can be reduced as much as possible, and the miniaturization of the integrated mechanism is facilitated.

The elastic member 84 has a bending structure and includes a bending main body 843, and a first fixing leg 841 and a second fixing leg 842 located at two ends of the main body 843, wherein the extending directions of the first fixing leg 841 and the second fixing leg 842 are perpendicular to the plane where the bending main body 843 is located; the first pressure guiding column 822 of the first pressure rod 82 is axially provided with a first elastic element mounting hole 823, and the second pressure guiding column 832 of the second pressure rod 83 is axially provided with a second elastic element mounting hole 833; the first fixing leg 841 and the second fixing leg 842 of the elastic member 84 are respectively and correspondingly installed in the first elastic member installation hole 823 and the second elastic member installation hole 833, so that the elastic member 84 is installed on the first pressure rod 82 and the second pressure rod 83, the elastic member 84 is firmly installed, and meanwhile, the thickness of the functional slider assembly can be reduced. The elastic member 84 may be an elastic wire or a torsion spring, preferably an elastic wire. Preferably, the first pressure bar 82 and the second pressure bar 83 have bar-shaped grooves at the top of opposite sides thereof, and when the elastic member 84 is mounted on the first pressure bar 82 and the second pressure bar 83 in a pre-tensioned state, the two arm portions of the bending body portion 843 of the elastic member 84 are respectively received in the two bar-shaped grooves, whereby the elastic member 84 can be more firmly positioned on the first pressure bar 82 and the second pressure bar 83.

The sliding block 81 is arc-shaped and comprises an upper support arm 817 and a lower support arm 818, wherein a status indication board 812 is arranged at the top of the upper support arm 817, and a controllable remote signaling board 813 is arranged at the bottom of the lower support arm 818. The status indication plate 812 is received in the status indication opening 411 of the stand 4, and the length of the status indication plate 812 is smaller than the length of the status indication opening 411. The status indication plate 812 includes a normal operation status indication area 8121 and a fault status indication area 8122, the normal operation status indication area 8121 is green, and the fault status indication area 8122 is red. The side of the lower arm 818 forms an arc shielding portion 814 between the slider wire break chamfer 811 and the controllable remote signaling plate 813. When the sliding block 81 is located at the first position, the status indication board 812 is located at one end of the status indication opening 411, the normal working status indication area 8121 of the status indication board 812 is exposed through the window hole 21 on the surge protector housing 2, the controllable remote signaling board 813 presses the control part 91 of the remote signaling switch 9, and the remote signaling switch 9 is in a closed state; after the sliding block 81 slides from the first position to the second position, the state indicating plate 812 slides to the other end of the state indicating opening 411, the fault state indicating area 8122 of the state indicating plate 812 is exposed through the window hole 21 on the surge protector housing 2, the controllable remote signaling plate 813 leaves the control part 91 of the remote signaling switch 9, the remote signaling switch 9 is in the open circuit state, and at the same time, the bracket 4, the sliding block wire cutting corner 811, the arc shielding part 814 and the inner wall of the surge protector housing 2 form a sealed area, so that the arc extinguishing function is realized.

In use, in the normal operation state as shown in fig. 6, the bridging elastic piece 5 is welded to the first electrode leg 31 of the metal oxide varistor 3, the sliding block 81 is propped against by the bridging elastic piece 5 to be kept at the first position, the bridging elastic piece 5 has a resilience force, the elastic piece 84 is pressed between the first pressure rod 82 and the second pressure rod 83 to be in a pre-tightening state, and the first pressure guide post 822 on the first pressure rod 82 and the second pressure guide post 832 on the second pressure rod 83 respectively prop against the first pressure guide bar 46 and the second pressure guide bar 47 of the bracket 4; the status indication board 812 is located at one end of the status indication opening 411, the normal working status indication area 8121 of the status indication board 812 is exposed through the window hole 21 on the surge protector housing 2, the controllable remote signaling board 813 presses the control part 91 of the remote signaling switch 9, the remote signaling switch 9 is in a closed state, and no remote signaling signal is sent.

When a fault occurs, as shown in fig. 7, the metal oxide varistor 3 generates a high temperature, the low temperature solder between the first electrode leg 31 and the bridging elastic piece 5 melts, the connection between the first electrode leg 31 and the bridging elastic piece 5 is broken, the bridging elastic piece 5 is reset to be sprung upwards without applying an abutting force to the sliding block 81, the extrusion force applied by the elastic piece 84 disappears, the resilience force of the elastic piece 84 enables the first pressure rod 82 and the second pressure rod 83 to rotate against the partition 410 of the bracket 4, the first pressure guide pillar 822 moves against the first pressure guide bar 46 of the bracket 4, meanwhile, the second pressure guide pillar 832 moves against the second pressure guide bar 47 of the bracket 4, the first pressure guide bar 46 and the second pressure guide bar 47 of the bracket 4 generate an ejecting force to the first pressure guide pillar 822 and the second pressure guide pillar 832 respectively, and further the sliding block 8 is pushed to slide from the first position to the second position along the guide bar 45 on the partition 410, and at this time, the slider cut angle 811 is located between the first electrode leg 31 and the bridging elastic piece 5 and is attached to the cut wire angle 49 of the bracket. During the sliding of the slider 81 from the first position to the second position, the slider wire breakage chamfer 811 and the bracket wire breakage chamfer 49 undergo a relative shearing motion to cut off the solder wire drawing and the arc generated after the bridging elastic piece 5 is separated from the first electrode leg 31 of the metal oxide varistor 3. At the same time, the status indication board 812, the controllable remote signaling board 813 and the arc shielding part 814 move synchronously with the sliding block 81, the status indication plate 812 moves from one end of the status indication opening 411 to the other end; when the sliding block 81 is at the second position, the fault state indication area 8122 of the state indication plate 812 is exposed through the window hole 21 on the surge protector housing 2, the controllable remote signaling plate 813 leaves the control part 91 of the remote signaling switch 9, and the remote signaling switch 9 is in an open state and sends out a remote signaling signal; the inner walls of the bracket 4, the slider broken wire chamfer 811, the arc shielding part 814 and the surge protector shell 2 form a sealed area, so that an arc extinguishing function is realized.

As shown in fig. 8A to 13, in another embodiment of the present invention, the surge protector includes a housing 2, a trip-arc-extinguishing-indicating remote signaling integrated mechanism, a metal oxide varistor 3, a first pin 6, and a second pin 7. The tripping and arc extinguishing indication remote signaling integrated mechanism comprises a bracket 4, a functional sliding block assembly 8 and a bridging elastic sheet 5. The difference is that, as shown in fig. 10A to 11B, the bridging elastic sheet 5 is an integrated structure formed by bending both ends of one strip-shaped sheet in the same direction, and includes a fixed end 51 welded to the first lead 6, a welding contact surface 52 welded to the first electrode leg 31 of the metal oxide varistor 3 by low-temperature solder, the fixed end 51 is directly connected to one end of the welding contact surface 52, and the other end of the welding contact surface 52 is connected to an abutting portion 54. The first electrode leg 31 of the metal oxide varistor 3 is sheet-shaped and is vertically arranged on the surface of the metal oxide varistor 3. The sheet-shaped first electrode pin 31 protrudes from the pin hole 43 perpendicularly to the holder partition 410. The support wire cut corner 49 extends from the side of the support 4 to the side of the first electrode leg 31 of the metal oxide varistor 3 and is perpendicular to the separator 410. One side of the holder wire-break chamfer 49 is located on the same plane as the first electrode leg 31. The side of the support wire-break chamfer 49 near the first electrode leg 31 preferably has a sloping surface, and the sloping surface is perpendicular to the partition 410 of the support 4; correspondingly, the slope of the slider thread-breaking chamfer 811 is also arranged perpendicular to the partition 410 of the support 4.

As shown in fig. 12, in the normal operation state, the bridging elastic piece 5 is welded to the first electrode leg 31 of the metal oxide varistor 3, and the sliding block 81 is held in the first position by being abutted by the abutment portion 54 of the bridging elastic piece 5, and the bridging elastic piece 5 has a resilience force; as shown in fig. 13, when a fault occurs, the metal oxide varistor 3 generates a high temperature, the low-temperature solder between the first electrode leg 31 and the bridging dome 5 melts, the connection between the first electrode leg 31 and the bridging dome 5 is broken, the bridging dome 5 springs back and tilts, and the slider wire cut corner 811 slides to a second position between the first electrode leg 31 and the bridging dome 5 and snaps onto the bracket wire cut corner 49. During sliding movement of the slider 81, the bracket wire cut corner 49 and the slider wire cut corner 811 undergo relative shearing movement, the solder wire drawing and the arc are cut off.

The above-described embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention. The protection scope of the invention is subject to the claims.

Claims

1. A trip arc extinguishing indication remote signaling integrated mechanism for a surge protector, comprising: a bracket (4) capable of accommodating at least one metal oxide varistor (3), a functional slider assembly (8) slidingly arranged in the bracket (4), and a bridging spring piece (5), wherein a first pin (6) of the surge protector is connected with a first electrode pin (31) of the metal oxide varistor (3) through the bridging spring piece (5) in a low-temperature welding way, and the bracket (4) is provided with a partition plate (410);

the multifunctional sliding block assembly (8) is characterized by comprising a sliding block (81), a first pressure rod (82), a second pressure rod (83) and an elastic piece (84), wherein the sliding block (81) is provided with a sliding block wire breakage cutting angle (811), and one end of the first pressure rod (82) and one end of the second pressure rod (83) are both rotationally fixed on the sliding block (81); in a normal state, the bridging elastic piece (5) is welded with the first electrode pin (31) of the metal oxide varistor (3), the sliding block (81) is propped against the bridging elastic piece (5) to be kept at a first position, and the elastic piece (84) is extruded between the first pressure rod (82) and the second pressure rod (83); in the release state, the connection between the bridging elastic piece (5) and the first electrode pin (31) of the metal oxide varistor (3) is disconnected, the bridging elastic piece (5) is rebounded and tilted, the extrusion force born by the elastic piece (84) disappears, the resilience force of the elastic piece (84) enables the first pressure rod (82) and the second pressure rod (83) to rotate oppositely, the first pressure rod (82) and the second pressure rod (83) move against the partition plate (410) of the bracket (4), the sliding block (81) is pushed to slide from the first position to the second position along the partition plate (410), and at the moment, the sliding block wire breakage cutting angle (811) of the sliding block (81) is positioned between the first electrode pin (31) and the bridging elastic piece (5);

one end of the first pressure rod (82) which is not fixed to the sliding block (81) is provided with a first pressure guide column (822); one end of the second pressure rod (83) which is not fixed to the sliding block (81) is provided with a second pressure guide column (832); the bracket (4) comprises a first pressure guide strip (46) and a second pressure guide strip (47); in a normal state, a first pressure guide strip (46) of the bracket (4) abuts against the first pressure guide column (822), a second pressure guide strip (47) abuts against the second pressure guide column (832), and the sliding block (81) is in a first position; in the release state, the first pressure rod (82) and the second pressure rod (83) are reversely rotated under the action of the resilience force of the elastic piece (84), the first pressure guide column (822) moves against the first pressure guide strip (46) of the support (4), and meanwhile, the second pressure guide column (832) moves against the second pressure guide strip (47) of the support (4), so that the sliding block (81) is pushed to slide from the first position to the second position.

2. The integrated trip and arc extinguishing indicating and remote signaling mechanism according to claim 1, wherein a guide groove (816) is arranged on one surface of the sliding block (81) which is abutted against the bracket partition board (410); the bracket (4) is provided with a bracket broken wire cutting angle (49) corresponding to the sliding block broken wire cutting angle (811), and the partition plate (410) of the bracket (4) is provided with a guide strip (45); the guide bar (45) of the bracket (4) is matched with the guide groove (816) of the sliding block (81), so that the sliding block (81) slides from a first position to a second position along the guide bar (45), and in the second position, the sliding block wire cutting corner (811) is attached to the bracket wire cutting corner (49).

3. The integrated trip and arc extinguishing indicating and remote signaling mechanism according to claim 1, characterized in that a rotary column (815) is arranged in the middle of the sliding block (81); one end of the first pressure rod (82) and one end of the second pressure rod (83) are rotationally fixed on the rotating column (815) and form a scissor type structure.

4. The integrated trip and arc extinguishing indicating and remote signaling mechanism according to claim 1, wherein the elastic member (84) has a bending structure, and the elastic member (84) includes a bending main body portion (843) and a first fixing leg (841) and a second fixing leg (842) located at two ends of the bending main body portion (843); a first elastic piece mounting hole (823) is formed in the first pressure guide column (822) of the first pressure rod (82) along the axial direction, and a second elastic piece mounting hole (833) is formed in the second pressure guide column (832) of the second pressure rod (83) along the axial direction; the first fixing leg (841) and the second fixing leg (842) of the elastic member (84) are respectively correspondingly arranged in the first elastic member mounting hole (823) and the second elastic member mounting hole (833), so that the elastic member (84) is arranged on the first pressure rod (82) and the second pressure rod (83).

5. The integrated trip and arc extinguishing and remote signaling mechanism of claim 1 wherein the surge protector has a housing (2) and the slider (81) includes an upper arm (817) and a lower arm (818).

6. The integrated trip and arc extinguishing indicating and remote signaling mechanism according to claim 5, characterized in that the housing (2) is provided with a viewing aperture (21), and the top of the bracket (4) is provided with a status indicating opening (411) corresponding to the position of the viewing aperture (21); the top of the upper support arm (817) is provided with a state indicating plate (812), the state indicating plate (812) is accommodated in a state indicating opening (411) of the bracket (4) and comprises a normal working state indicating area (8121) and a fault state indicating area (8122), and the two indicating areas (8121 ) have different colors; when the sliding block (81) is positioned at the first position, the state indicating plate (812) is positioned at one end of the state indicating opening (411), and the normal working state indicating area (8121) is exposed through a window hole (21) on the surge protector shell (2); the sliding block (81) slides from the first position to the second position, the state indicating plate (812) slides to the other end of the state indicating opening (411), and the fault state indicating area (8122) is exposed through a window hole (21) on the surge protector shell (2).

7. The integrated trip and arc extinguishing and remote signaling mechanism according to claim 5, wherein the surge protector is provided with a remote signaling switch (9), the bottom end of the bracket (4) is provided with a remote signaling switch assembly groove (48), and a control part (91) of the remote signaling switch (9) extends into the bracket (4) through the remote signaling switch assembly groove (48); a controllable remote signaling plate (813) is arranged at the bottom of the lower support arm (818) of the sliding block (81); when the sliding block (81) is positioned at the first position, the controllable remote signaling plate (813) presses the control part (91) of the remote signaling switch (9), and the remote signaling switch (9) is in a closed state; the sliding block (81) slides from a first position to a second position, and the controllable remote signaling plate (813) is separated from the control part (91) of the remote signaling switch (9).

8. The integrated trip-quenching-indicating and remote-signaling mechanism according to claim 5, wherein the arc shielding part (814) is formed on the side edge of the lower support arm (818) of the sliding block (81), and when the sliding block (81) is in the second position, the sealing area is formed by the bracket (4), the sliding block wire-breaking cutting angle (811), the arc shielding part (814) and the inner wall of the surge protector shell (2).

9. The integrated trip-arc extinguishing and remote signaling mechanism according to claim 1, wherein the bridging elastic sheet (5) is of an integrated bending structure and comprises a fixed end (51), a welding contact surface (52) and an abutting part (54), the welding contact surface (52) is welded with the first electrode pin (31) of the metal oxide varistor (3) through low-temperature solder, and the fixed end (51) is welded with the first pin (6) of the surge protector.

10. A surge protector comprising a remote signalling switch (9), at least one metal oxide varistor (3) and a trip-quenching-indicating remote signalling integrated mechanism as claimed in any one of claims 1 to 6.