CN216699502U - 40kA three-phase 3+1 mode fusing type surge protector - Google Patents

Abstract

The utility model discloses a 40kA three-phase 3+1 mode fusing surge protector which comprises a base assembly, a pressure-sensitive module assembly and an air release module assembly, wherein the pressure-sensitive module assembly and the air release module assembly are slidably inserted into the base assembly, a fuse is integrated in the pressure-sensitive module assembly, and the fuse is connected with a pressure-sensitive element of the pressure-sensitive module assembly. It is in the same place surge protector and fuse integration, adopts the mode that the fuse overall arrangement is integrated in pressure-sensitive module subassembly, and whole overall dimension is little, compact structure saves installation space, need not to purchase corresponding specification fuse or empty division alone again.

Description

40kA three-phase 3+1 mode fusing type surge protector

Technical Field

The utility model relates to the field of surge protectors, in particular to a 40kA three-phase 3+1 mode fusing type surge protector.

Background

The surge protector is a protection device for providing safety protection for various electronic equipment, instruments and meters and communication lines, and when an electric loop and the communication line are damaged due to lightning attack or other instantaneous overvoltage, the surge protector can be started in time to discharge the lightning attack or other instantaneous overvoltage, so that the effect of protecting rear-end equipment is achieved.

At present, surge protector uses in the market mainly to carry out overcurrent protection to surge protector at the fuse of front end cluster combination suitable specification and empty division, and each producer needs the fuse of independent purchase corresponding specification model and empty division material, and structural also need set up certain installation space.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a 40kA three-phase 3+1 mode fusing type surge protector to solve the problems.

In order to solve the technical problem, the utility model provides a 40kA three-phase 3+1 mode fusing type surge protector which comprises a base assembly, a pressure-sensitive module assembly and an air release module assembly, wherein the pressure-sensitive module assembly and the air release module assembly are slidably inserted into the base assembly, a fuse is integrated in the pressure-sensitive module assembly, and the fuse is connected with a pressure-sensitive element of the pressure-sensitive module assembly.

Further, the pressure-sensitive module assembly comprises a pressure-sensitive element, a pin A, a pin B, a fuse, a connecting sheet A, a connecting sheet B, a fuse PCB, a chip diode, a chip resistor, a light-emitting diode, a rotating block, a tension spring and an anti-misplug arrow, wherein the pressure-sensitive element, the pin A, the pin B, the fuse, the light-emitting diode, the rotating block, the tension spring and the anti-misplug arrow are assembled in an assembling space of the inner shell and the outer shell;

one side of the inner shell is provided with a pressure-sensitive assembly groove, a low-temperature pin hole, a high-temperature pin hole, a fuse pin groove, a fuse assembly groove and a fuse PCB assembly groove; the other side is provided with a pin A assembly groove, a pin B assembly groove, a rotating block assembly column and a tension spring assembly groove, and the bottom surface of the inner shell is provided with an error-insertion-preventing arrow head assembly hole;

the pressure-sensitive element is provided with a pressure-sensitive low-temperature pin, a pressure-sensitive high-temperature pin and a fuse pin, the pin A is provided with a high-temperature welding position, the pin B is provided with a low-temperature copper sheet and a tension spring assembling hole, the two ends of the fuse are respectively provided with a first electrode and a second electrode, one end of the connecting sheet A is provided with a first welding position, the other end of the connecting sheet A is provided with a second welding position, one end of the connecting sheet B is provided with a third welding position, and the other end of the connecting sheet B is provided with a fourth welding position;

the patch diode, the patch resistor and the light emitting diode are welded on the fuse PCB to form a fuse PCB subassembly, the rotating block is provided with a rotating block assembling hole and a rotating block hook, the two ends of the tension spring are respectively provided with a first hook and a second hook, and the shell is provided with a cavity and a display window.

Furthermore, a pressure-sensitive element is arranged in a pressure-sensitive mounting groove of the inner shell, a pressure-sensitive low-temperature pin is arranged in a low-temperature pin hole on one side of the inner shell, a fuse pin is arranged in a fuse pin groove on one side of the inner shell, and a fuse is arranged in a fuse mounting groove on one side of the inner shell;

the fuse PCB subassembly is arranged in a fuse PCB assembly groove on one side of the inner shell, a fuse pin is welded with a fifth welding position of the fuse PCB, a third welding position of a connecting sheet B is welded with a pressure-sensitive high-temperature pin, and a fourth welding position of the connecting sheet B is welded with a second electrode of the fuse and a sixth welding position of the fuse PCB;

the pin A is arranged in a pin A assembly groove on the other side of the inner shell, the high-temperature welding position of the pin A is welded with the first welding position of the connecting sheet A, the second welding position of the connecting sheet A is welded with the first electrode of the fuse, the pin B is arranged in a pin B assembly groove on the other side of the inner shell, and the low-temperature copper sheet of the pin B is welded with the pressure-sensitive low-temperature pin;

the rotary block is arranged in a rotary block assembly groove on the other side of the inner shell, the rotary block assembly hole is arranged on a rotary block assembly column on the other side of the inner shell, a first hook of a tension spring is arranged on a rotary block hook, a second hook of the tension spring is arranged in a pin B hanging hole, and an anti-misplug arrow is arranged in an anti-misplug arrow assembly hole on the bottom surface of the inner shell.

Furthermore, the number of the pressure-sensitive module assemblies is three, the number of the air release module assemblies is one, the base assembly comprises four base subassemblies, and the four base subassemblies are respectively matched and spliced with the three pressure-sensitive module assemblies and the air release module assembly.

Further, the base component comprises a first base subassembly, a second base subassembly, a third base subassembly and a fourth base subassembly, mounting holes for inserting copper pipes are formed in the four base subassemblies, and the copper pipes sequentially penetrate through the four subassemblies and are riveted through riveting tools.

Furthermore, the first base subassembly comprises a base A, a base B and a metal clamping strip A subassembly assembled between the base A and the base B; the second base subassembly comprises a base C, a base B, a metal clamping strip B subassembly and a metal clamping strip A subassembly, wherein the metal clamping strip B subassembly and the metal clamping strip A subassembly are assembled between the base C and the base B; the third base subassembly comprises a base C, a base B, a metal clamping strip C subassembly and a metal clamping strip A subassembly which are assembled between the base C and the base B; the fourth base subassembly comprises a base C, a base D and a metal clamping strip A subassembly assembled between the base C and the base D; and metal buckles with pressure springs are arranged on the first base subassembly and the fourth base subassembly.

Furthermore, the metal clamping strip A subassembly comprises a metal clamping strip A fixed by a screw and a wire pressing frame, the metal clamping strip B subassembly comprises a metal clamping strip B fixed by a screw and a wire pressing frame, and the metal clamping strip C subassembly comprises a metal clamping strip C fixed by a screw and a wire pressing frame; the metal clamping strip B subassembly and the metal clamping strip A subassembly which are positioned on the second base subassembly are arranged oppositely, and the metal clamping strip C subassembly and the metal clamping strip A subassembly which are positioned on the third base subassembly are arranged oppositely.

Furthermore, all be provided with on first base sub-assembly, second base sub-assembly, third base sub-assembly and the fourth base sub-assembly and be used for preventing that pressure sensitive module subassembly and/or air release module subassembly from misplugging prevent mistake socket.

Furthermore, a main PCB secondary assembly formed by welding the main PCB and the micro switch and a remote signaling secondary assembly formed by welding the remote signaling cap, the remote signaling seat and the remote signaling PCB are arranged in the base assembly, and the remote signaling secondary assembly is welded with the main PCB secondary assembly through a wire to form a remote signaling channel.

Further, the base assembly further comprises a bus bar, and the bus bar penetrates through the second base subassembly and the third base subassembly and is fixedly connected with the metal clamping bar B subassembly and the metal clamping bar C subassembly through screws.

The beneficial effects of the utility model are as follows: this 40kA three-phase 3+1 mode fusing type surge protector is in the same place surge protector and fuse integration, adopts the mode of fuse overall arrangement integration in pressure-sensitive module subassembly, and whole overall dimension is little, and compact structure saves installation space, need not to purchase corresponding specification fuse alone again or empty the opening.

Drawings

Fig. 1 is a schematic structural diagram of a 40kA three-phase 3+1 mode fusing type surge protector.

Fig. 2 is an exploded view of a base assembly of a 40kA three-phase 3+1 mode fused surge protector;

FIG. 3 is an exploded view of the pressure sensitive module assembly of the 40kA three-phase 3+1 mode fused surge protector;

FIG. 4 is an exploded view of the gas discharge module assembly of the 40kA three-phase 3+1 mode fused surge protector;

FIG. 5 is a schematic diagram of the internal structure of an inner shell of a 40kA three-phase 3+1 mode fusing type surge protector;

FIG. 6 is a schematic diagram of a pressure-sensitive element structure of a 40kA three-phase 3+1 mode fusing type surge protector;

wherein: 1. a pressure sensitive module assembly; 2. a gas discharge module assembly; 3. a base assembly; 4. a base A; 5. a base B; 6. a base C; 7. a base D; 8. a metal clamping strip A; 9. a metal clamping strip B; 10. a metal clip strip C; 11. pressing a wire frame; 12. a screw; 13. an anti-error socket; 14. a button; 15. a plug; 16. a main PCB; 17. a microswitch; 18. a remote signaling cap; 19. a remote signaling seat; 20. a remote signaling PCB; 21. a copper tube; 22. a bus bar; 23. a busbar sheath; 24. a dome; 25. a square cover; 26. a metal buckle; 27. a pressure spring; 28. an inner shell; 29. a pressure-sensitive assembly groove; 30. a low temperature pin hole; 31. high temperature pin holes; 32. fuse pin slots; 33. a fuse mounting slot; 34. a fuse PCB assembly slot; 35. the pin A is provided with a groove; 36. the pin B is provided with a groove; 37. rotating the block assembly column; 38. a tension spring assembly groove; 39. an arrow assembling hole is prevented from being inserted mistakenly; 40. a pressure sensitive element; 41. a voltage-sensitive low-temperature pin; 42. a pressure-sensitive high-temperature pin; 43. a fuse pin; 44. a pin A; 45. welding at a high temperature; 46. a pin B; 47. a tension spring assembly hole; 48. a low-temperature spring plate; 49. a fuse; 50. a first electrode; 51. a second electrode; 52. connecting a sheet A; 53. a first welding position; 54 second weld site; 55. connecting a sheet B; 56. a third welding position; 57. a fourth welding position; 58. a fuse PCB; 59. a surface mount diode; 60. a chip resistor; 61. a light emitting diode; 62. a fifth welding position; 63. a sixth welding position; 64. rotating the block; 65. a rotating block assembly hole; 66. a rotating block hook; 67. a tension spring; 68. a first hook; 69. a second hook; 70. a housing; 71. a cavity; 72. displaying a window; 73. an anti-misplugging arrow head; 74. an air release element; 75. a gas discharge low temperature pin; 76. and (4) air-releasing the high-temperature pins.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiment is only one embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the present invention.

In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments, and descriptions related to some conventional general connection structures and techniques known to those skilled in the art are omitted below.

As shown in fig. 1 to 6, the 40kA three-phase 3+1 mode fusing type surge protector comprises a base assembly, a pressure-sensitive module assembly 1 and an air-releasing module assembly 2, wherein the pressure-sensitive module assembly 1 is slidably inserted into the base assembly, a fuse 49 is integrated in the pressure-sensitive module assembly 1, and the fuse 49 is connected with a pressure-sensitive element 40 of the pressure-sensitive module assembly 1. This fusing type surge protector is in the same place surge protector and fuse 49 are integrated to configuration design through overall structure saves installation space, reduces the material purchase.

The pressure-sensitive module assembly 1 of the 40kA three-phase 3+1 mode fusing type surge protector comprises a pressure-sensitive element 40, a pin a44, a pin B46, a fuse 49, a connecting sheet a52, a connecting sheet B55, a fuse PCB58, a chip diode 59, a chip resistor 60, a light-emitting diode 61, a rotating block 64, a tension spring 67 and an anti-misplug arrow 73, wherein the number of the chip resistors 60 is two, and the pressure-sensitive element 40 is assembled in an assembling space of an inner shell 28 and an outer shell 70.

Specifically, a pressure-sensitive assembly groove 29, a low-temperature pin hole 30, a high-temperature pin hole 31, a fuse pin groove 32, a fuse assembly groove 33, and a fuse PCB assembly groove 34 are provided at one side of the inner case 28; wherein, the low temperature pin hole 30 is positioned in the pressure sensitive assembly groove 29, the high temperature pin hole 31 is arranged beside the inner shell 28, the fuse pin groove 32, the fuse assembly groove 33 and the fuse PCB assembly groove 34 are communicated and arranged and positioned at one side of the pressure sensitive assembly groove 29.

The inner shell 28 is provided at the other side thereof with a pin a fitting groove 35, a pin B fitting groove 36, a rotary block fitting post 37 and a tension spring fitting groove 38, and at the bottom surface of the inner shell 28 is provided with a mis-insertion preventing arrow fitting hole 39 for receiving a mis-insertion preventing arrow 73.

The pressure-sensitive element 40 is provided with a pressure-sensitive low-temperature pin 41, a pressure-sensitive high-temperature pin 42 and a fuse 49 pin 43, the pin A44 is provided with a high-temperature welding position 45, the pin B46 is provided with a low-temperature copper sheet and a tension spring assembly hole 47, two ends of the fuse 49 are respectively provided with a first electrode 50 and a second electrode 51, one end of a connecting sheet A52 is provided with a first welding position 53, the other end of the connecting sheet A52 is provided with a second welding position 54, one end of a connecting sheet B55 is provided with a third welding position 56, and the other end of the connecting sheet B55 is provided with a fourth welding position 57.

The chip diode 59, the two chip resistors 60 and the light emitting diode 61 are welded on the fuse PCB58 to form a fuse PCB58 subassembly, the rotating block 64 is provided with a rotating block assembly hole 65 and a rotating block hook 66, meanwhile, a first hook 68 and a second hook 69 are respectively arranged at two ends of a tension spring 67, and a cavity 71 and a display window 72 are arranged on the shell 70.

In the actual installation of the pressure-sensitive module assembly 1, the pressure-sensitive element 40 is fitted into the pressure-sensitive fitting groove 29 of the inner housing 28, the pressure-sensitive low-temperature pin 41 is fitted into the low-temperature pin hole 30 of the inner housing 28 side, the fuse pin 43 is fitted into the fuse pin groove 32 of the inner housing 28 side, and the fuse 49 is fitted into the fuse fitting groove 33 of the inner housing 28 side. The chip diode 59, the two chip resistors 60 and the light emitting diode 61 are welded on the fuse PCB58 to form a fuse PCB58 subassembly, and the subassembly is loaded into the fuse PCB assembly slot 34 on one side of the inner housing 28, the fuse pin 43 is welded with the fifth welding position 62 of the fuse PCB58, the third welding position 56 of the connecting piece B55 is welded with the pressure-sensitive high-temperature pin 42, and the fourth welding position 57 of the connecting piece B55 is welded with the second electrode 51 of the fuse and the sixth welding position 63 of the fuse PCB 58.

The pin A44 is arranged in the pin A assembly groove 35 at the other side of the inner shell 28, the pin A44 high-temperature welding position 45 is welded with the first welding position 53 of the connecting sheet A52, the second welding position 54 of the connecting sheet A52 is welded with the first electrode 50 of the fuse, the pin B46 is arranged in the pin B assembly groove 36 at the other side of the inner shell 28, and the pin B46 low-temperature elastic sheet 48 is welded with the pressure sensitive low-temperature pin 41. The rotary block 64 is fitted into the rotary block 64 fitting groove at the other side of the inner case 28, the rotary block fitting hole 65 is fitted into the rotary block 64 fitting post 37 at the other side of the inner case 28, the first hook 68 of the tension spring 67 is fitted into the rotary block hook 66, the second hook 69 of the tension spring 67 is fitted into the pin B46 hanging hole, and the erroneous insertion preventing arrow 73 is fitted into the erroneous insertion preventing arrow fitting hole 39 at the bottom surface of the inner case 28.

The air bleed module assembly 2 is substantially similar in construction to the pressure sensitive module assembly 1 except that the pressure sensitive element 40 is replaced with an air bleed element 74 without the attachment tab a52, attachment tab B55, fuse 49 and fuse PCB58 subassemblies, all otherwise identical. The air release element 74 is provided with an air release low-temperature pin 75 and an air release high-temperature pin 76, the air release element 74 is arranged in an air release assembly groove at one side of the inner shell 28, the air release low-temperature pin 75 is arranged in a low-temperature pin hole 30 at one side of the inner shell 28 and is welded with a pin B46 low-temperature copper sheet, and the air release high-temperature pin 76 is arranged in a high-temperature pin hole 31 at one side of the inner shell 28 and is welded with a pin A44; since the air release module assembly 2 is easily known to those skilled in the art, it will not be described herein.

This 40kA three-phase 3+1 mode fusing type surge protector's pressure-sensitive module subassembly 1 is three, and gas is put module subassembly 2 and is one, and the base subassembly includes four base subassemblies, and four base subassemblies are pegged graft with three pressure-sensitive module subassembly 1 and the cooperation of a gas module subassembly 2 respectively.

Wherein, the base subassembly includes first base subassembly, second base subassembly, third base subassembly and fourth base subassembly, all is provided with the mounting hole that is used for interlude copper pipe 21 on four base subassemblies, and copper pipe 21 passes four subassemblies in proper order and rivets tightly through the riveting frock. Of course, the first base subassembly, the second base subassembly, the third base subassembly and the fourth base subassembly are all provided with the socket 13 for preventing the pressure-sensitive module assembly 1 and/or the air release module assembly 2 from being inserted by mistake, and the socket 13 is prevented from being matched with the arrow 73 for preventing the pressure-sensitive module assembly from being inserted by mistake.

The first chassis subassembly comprises a chassis A4, a chassis B5, and a metal clamping strip A8 subassembly which is assembled between the chassis A4 and the chassis B5; the second chassis subassembly comprises chassis C6, chassis B5, and a metal card bar B9 subassembly and a metal card bar A8 subassembly that fit between chassis C6 and chassis B5; the third chassis subassembly includes chassis C6, chassis B5, and a metal card bar C10 subassembly and a metal card bar A8 subassembly that fit between chassis C6 and chassis B5; the fourth chassis subassembly includes chassis C6, chassis D7, and metal card bar a8 subassembly that fits between chassis C6 and chassis D7; and metal buckles 26 with pressure springs 27 are arranged on the first base subassembly and the fourth base subassembly and are used for buckle locking connection. The metal clamping strip A8 subassembly comprises a metal clamping strip A8 fixed by a screw 12 and a wire pressing frame 11, the metal clamping strip B9 subassembly comprises a metal clamping strip B9 fixed by the screw 12 and a wire pressing frame 11, and the metal clamping strip C10 subassembly comprises a metal clamping strip C10 fixed by the screw 12 and a wire pressing frame 11. And the metal clamping strip B9 subassembly and the metal clamping strip A8 subassembly which are positioned on the second base subassembly are oppositely arranged, and the metal clamping strip C10 subassembly and the metal clamping strip A8 subassembly which are positioned on the third base subassembly are oppositely arranged.

The base component is also internally provided with a main PCB16 secondary component formed by welding the main PCB16 and the microswitch 17, and a remote signaling secondary component formed by welding the remote signaling cap 18, the remote signaling seat 19 and the remote signaling PCB20, wherein the remote signaling secondary component is welded with the main PCB16 secondary component through a lead to form a remote signaling channel. The base assembly further comprises a bus bar 22, and the bus bar 22 penetrates through the second base subassembly and the third base subassembly and is tightly connected with the metal clamping bar B9 subassembly and the metal clamping bar C10 subassembly through screws 12.

The base component can further comprise a base A4, three bases B5, three bases C6, a base D7, four metal clamping strips A8, metal clamping strips B9, metal clamping strips C10, six wire pressing frames 11, six screws 12, four anti-error sockets 13, four buttons 14, three plugs 15, a main PCB16, four micro switches 17, a remote signaling cap 18, a remote signaling seat 19, a remote signaling PCB20, four copper pipes 21, a bus bar 22, two bus bar sheaths 23, two round covers 24, two square covers 25, two metal buckles 26 and two pressure springs 27.

Wherein, base A4 and base D7 and base B5 and base C6 all are equipped with corresponding main PCB16 fitting groove, busbar 22 fitting groove, metal card strip B9 fitting groove and metal card strip C10 fitting groove symmetrically, the difference lies in that the main PCB16 fitting groove that base B5 and base C6 correspond, busbar 22 fitting groove, metal card strip B9 fitting groove and metal card strip C10 fitting groove are logical grooves, and the corresponding fitting groove outside position of base A4 and base D7 is sealed by plastics, prevent to alternate excessively and reduce the entering of dust. Seat a4 and seat D7 were placed on either side of the seat assembly and three seats B5 and three seats C6 were placed in the middle of the seat assembly, i.e., seat a4 and seat D7 were located on the outermost sides of the assembled assembly seats. The metal clamping strip A8, the wire pressing frame 11 and the screw 12 form a metal clamping strip A8 subassembly, and the base subassembly comprises four metal clamping strips A8 subassemblies. The metal clamping strip B9, the wire pressing frame 11 and the screw 12 form a metal clamping strip B9 subassembly. The metal clamping strip C10, the wire pressing frame 11 and the screw 12 form a metal clamping strip C10 subassembly. The main PCB16 and the four micro switches 17 are welded to form a main PCB16 subassembly, wherein the main PCB16 subassembly is inserted and installed in the base subassembly, and the four micro switches 17 are respectively located in the first base subassembly, the second base subassembly, the third base subassembly and the fourth base subassembly. The remote signaling cap 18, the remote signaling base 19 and the remote signaling PCB20 are welded to form a remote signaling subassembly. Wherein, can constitute first base subassembly by base A4, a base B5, a metal card strip A8 subassembly, one prevent mistake socket 13, a button 14, a end cap 15, a dome 24, a square cover 25, a metal buckle 26 and a pressure spring 27, dome 24 and square cover 25 all play the effect that blocks up and prevent the dust entering, and conventional setting does not need to be repeated. A base C6, a base B5, a metal strip a8 subassembly, a metal strip B9 subassembly, a tamper resistant receptacle 13, a button 14, and a plug 15 make up a second base subassembly.

A third base subassembly is composed of a base C6, a base B5, a metal clamping strip A8 subassembly, a metal clamping strip C10 subassembly, an anti-error socket 13, a button 14 and a plug 15. A fourth base subassembly is composed of a base C6, a base D7, a metal clamping strip A8 subassembly, an anti-misoperation socket 13, a button 14, a remote signaling cap 18, a remote signaling seat 19, a remote signaling PCB20, a round cover 24, a square cover 25, a metal buckle 26 and a pressure spring 27.

A metal clamping strip A8 subassembly, an anti-misoperation socket 13, a button 14, a plug 15 and a main PCB16 subassembly are arranged in corresponding assembly grooves of a base A4, a base B5 is correspondingly arranged on a base A4, a round cover 24 and a square cover 25 are correspondingly arranged in corresponding assembly holes after the base A4 is combined with the base B5, a metal buckle 26 and a pressure spring 27 are correspondingly arranged in corresponding assembly grooves after the base A4 is combined with the base B5, the assembly of the first base subassembly is completed, and the assembly of the second base subassembly, the third base subassembly and the fourth base subassembly can be completed in the same method. The difference of the second base subassembly lies in that a metal clamping strip B9 subassembly is required to be arranged in a corresponding assembly groove of a base C6, and the round cover 24, the square cover 25, the metal buckle 26 and the pressure spring 27 are not arranged. The difference of the third base subassembly lies in that a metal clamping strip C10 subassembly is required to be arranged in a corresponding assembly groove of a base C6, and the round cover 24, the square cover 25, the metal buckle 26 and the pressure spring 27 are not arranged. The difference in the fourth base subassembly is that the plug 15 is replaced by a remote signaling subassembly, and the remote signaling subassembly is welded with the main PCB16 subassembly through three wires to form a remote signaling path. Four copper pipes 21 penetrate through corresponding assembly holes of the base assembly and are riveted through a riveting tool, the bus bar 22 is fastened and connected with the metal clamping bar B9 subassembly and the metal clamping bar C10 subassembly through the screws 12, and the bus bar sheath 23 is correspondingly arranged in a corresponding assembly groove of the base assembly.

This 40kA three-phase 3+1 mode fusing type surge protector is in the same place surge protector and fuse 49 are integrated, adopts the mode of fuse 49 overall arrangement integration in pressure-sensitive module subassembly 1, and whole overall dimension is little, and compact structure saves installation space, need not to purchase corresponding specification fuse 49 alone again or empty division.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a 40kA three-phase 3+1 mode fusing type surge protector which characterized in that: the pressure-sensitive module component is integrated with a fuse, and the fuse is connected with a pressure-sensitive element of the pressure-sensitive module component.

2. The 40kA three-phase 3+1 mode fused surge protector of claim 1, wherein: the pressure-sensitive module assembly comprises a pressure-sensitive element, a pin A, a pin B, a fuse, a connecting sheet A, a connecting sheet B, a fuse PCB, a chip diode, a chip resistor, a light-emitting diode, a rotating block, a tension spring and an anti-misplug arrow, wherein the pressure-sensitive element, the pin A, the pin B, the fuse, the chip resistor, the light-emitting diode, the rotating block, the tension spring and the anti-misplug arrow are assembled in an assembling space of the inner shell and the outer shell;

one side of the inner shell is provided with a pressure-sensitive assembly groove, a low-temperature pin hole, a high-temperature pin hole, a fuse pin groove, a fuse assembly groove and a fuse PCB assembly groove; the other side of the inner shell is provided with a pin A assembly groove, a pin B assembly groove, a rotating block assembly column and a tension spring assembly groove, and the bottom surface of the inner shell is provided with an error-insertion-preventing arrow head assembly hole;

the pressure-sensitive element is provided with a pressure-sensitive low-temperature pin, a pressure-sensitive high-temperature pin and a fuse pin, the pin A is provided with a high-temperature welding position, the pin B is provided with a low-temperature copper sheet and a tension spring assembling hole, two ends of the fuse are respectively provided with a first electrode and a second electrode, one end of the connecting sheet A is provided with a first welding position, the other end of the connecting sheet A is provided with a second welding position, one end of the connecting sheet B is provided with a third welding position, and the other end of the connecting sheet B is provided with a fourth welding position;

paster diode, chip resistor and emitting diode welding constitute fuse PCB subassembly on the fuse PCB, rotatory piece is equipped with rotatory piece pilot hole and rotatory piece couple, the extension spring both ends are equipped with first couple and second couple respectively the shell is equipped with cavity and display window.

3. The 40kA three-phase 3+1 mode fused surge protector of claim 2, wherein: the pressure-sensitive element is arranged in the pressure-sensitive groove of the inner shell, the pressure-sensitive low-temperature pin is arranged in a low-temperature pin hole on one side of the inner shell, the fuse pin is arranged in a fuse pin groove on one side of the inner shell, and the fuse is arranged in a fuse assembling groove on one side of the inner shell;

the fuse PCB subassembly is arranged in a fuse PCB assembly groove on one side of the inner shell, a fuse pin and a fifth welding position of the fuse PCB are welded together, a third welding position of a connecting sheet B is welded together with a pressure-sensitive high-temperature pin, and a fourth welding position of the connecting sheet B is welded together with a second electrode of the fuse and a sixth welding position of the fuse PCB;

the plug pin A is arranged in a plug pin A assembling groove on the other side of the inner shell, a high-temperature welding position of the plug pin A is welded with a first welding position of a connecting sheet A, a second welding position of the connecting sheet A is welded with a first electrode of the fuse, the plug pin B is arranged in a plug pin B assembling groove on the other side of the inner shell, and a low-temperature copper sheet of the plug pin B is welded with the pressure-sensitive low-temperature pin;

the rotary block is arranged in the rotary block assembly groove on the other side of the inner shell, the rotary block assembly hole is arranged in the rotary block assembly column on the other side of the inner shell, the first hook of the tension spring is arranged on the rotary block hook, the second hook of the tension spring is arranged in the pin B hanging hole, and the misplug-preventing arrow is arranged in the misplug-preventing arrow assembly hole in the bottom surface of the inner shell.

4. The 40kA three-phase 3+1 mode fuse-type surge protector of claim 1, wherein: the pressure-sensitive module components are three, the air release module component is one, the base component comprises four base subassemblies, and the four base subassemblies are respectively matched and spliced with the three pressure-sensitive module components and the air release module component.

5. The 40kA three-phase 3+1 mode fuse-type surge protector of claim 1, wherein: the base component comprises a first base subassembly, a second base subassembly, a third base subassembly and a fourth base subassembly, mounting holes for inserting copper pipes are formed in the four base subassemblies, and the copper pipes sequentially penetrate through the four subassemblies and are riveted through riveting tools.

6. The 40kA three-phase 3+1 mode fuse-type surge protector of claim 1, wherein: the first base subassembly comprises a base A, a base B and a metal clamping strip A subassembly assembled between the base A and the base B; the second base subassembly comprises a base C, a base B, a metal clamping strip B subassembly and a metal clamping strip A subassembly, wherein the metal clamping strip B subassembly and the metal clamping strip A subassembly are assembled between the base C and the base B; the third base subassembly comprises a base C, a base B, a metal clamping strip C subassembly and a metal clamping strip A subassembly, wherein the metal clamping strip C subassembly and the metal clamping strip A subassembly are assembled between the base C and the base B; the fourth base subassembly comprises a base C, a base D and a metal clamping strip A subassembly assembled between the base C and the base D; and metal buckles with pressure springs are arranged on the first base subassembly and the fourth base subassembly.

7. The 40kA three-phase 3+1 mode fuse-type surge protector of claim 6, wherein: the metal clamping strip A sub-assembly comprises a metal clamping strip A fixed by a screw and a wire pressing frame, the metal clamping strip B sub-assembly comprises a metal clamping strip B fixed by a screw and a wire pressing frame, and the metal clamping strip C sub-assembly comprises a metal clamping strip C fixed by a screw and a wire pressing frame; the metal clamping strip B subassembly and the metal clamping strip A subassembly which are positioned on the second base subassembly are arranged oppositely, and the metal clamping strip C subassembly and the metal clamping strip A subassembly which are positioned on the third base subassembly are arranged oppositely.

8. The 40kA three-phase 3+1 mode fused surge protector of claim 1, wherein: all be provided with on first base sub-assembly, second base sub-assembly, third base sub-assembly and the fourth base sub-assembly and be used for preventing that pressure sensitive module subassembly and/or air release module subassembly from misplugging prevents mistake socket.

9. The 40kA three-phase 3+1 mode fuse-type surge protector of claim 1, wherein: the base assembly is also internally provided with a main PCB sub-assembly formed by welding a main PCB and a microswitch, and a remote signaling sub-assembly formed by welding a remote signaling cap, a remote signaling seat and a remote signaling PCB, wherein the remote signaling sub-assembly is welded with the main PCB sub-assembly through a wire to form a remote signaling channel.

10. The 40kA three-phase 3+1 mode fuse surge protector of claim 9, wherein: the base assembly further comprises a bus bar, and the bus bar penetrates through the second base subassembly and the third base subassembly and is fixedly connected with the metal clamping bar B subassembly and the metal clamping bar C subassembly through screws.

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