CN201466705U

CN201466705U - Surge protection device

Info

Publication number: CN201466705U
Application number: CN2009200719989U
Authority: CN
Inventors: 李金荣; 倪向宇
Original assignee: SHANGHAI LERDN LIGHTNING PROTECTION CO Ltd
Current assignee: SHANGHAI LERDN LIGHTNING PROTECTION CO Ltd
Priority date: 2009-05-11
Filing date: 2009-05-11
Publication date: 2010-05-12
Anticipated expiration: 2019-05-11

Abstract

The utility model discloses a surge protection device, which is formed by a base, an enclosure, a tripping mechanism, an ejector rod and a micro switch. The tripping mechanism comprises a large plug, a small plug, a core insert, a pushrod, a detaching piece, a soft connecting piece, an indicating window and a chip. The tripping mechanism is installed in the enclosure. The indicating window is arranged on the enclosure. The pushrod comprises an upper pin, a lower pin, a raised platform, a sliding groove and a spring pillar. A raised block is arranged in the sliding groove. The raised block is installed on the enclosure. The large plug and the small plug are respectively inserted on a connecting plate on a bottom plate. The ejector rod is propped against the lower pin of the pushrod through the micro switch. The utility model has the advantages that the surge protection device is safe and reliable, the structure is simple, the impact resistance is high and the tripping distance is long.

Description

Surge protector

Technical field

The utility model relates to a kind of protector, relates in particular to the surge protector of prompting fault in a kind of low-voltage distribution system.

Background technology

Extensive use along with computer and microelectronic device; frequent closely thunderbolt and switching overvoltage all can cause severe impairment to these equipment; therefore people have higher requirement to the stability of power supply; surge protector can address this problem well; therefore obtained using widely, simultaneously also to the demands for higher performance of surge protector.Widely used in the market votage limit type surge protector exists faulty indication mechanism impact resistance poor, low melting point scolding tin place intensity difference; naturally thread off easily, the distance of threading off is little, is generally 2mm to 3mm; the tripping mechanism complex structure; most of structures adopt extension spring to drive, and there is the long-time shortcoming of fatigue deformation easily in extension spring, and some adopts stage clip to drive; indicating structure is more complicated again; part is many, and transmission link is also many, causes the unreliable of indication easily.

The utility model content

For solving the problems of the technologies described above, the utility model provides a kind of safe and reliable, simple in structure, strong shock resistance, surge protector that the dropout distance is big.

The utility model provides a kind of surge protector, comprise base, case, tripping mechanism, push rod, sensitive switch composition, described tripping mechanism comprises: big plug, small plug, lock pin, push rod, release sheet, the sheet that is flexible coupling, indicating window, chip are formed; Tripping mechanism is installed in case inside, and described case is provided with indicating window.

Described push rod comprises: go up pin, leftover bits and pieces, boss, chute, spring stack, there is projection described chute inside, and described projection is installed on the case,

Described big plug and small plug assign into respectively on the connecting plate on the base plate, and described push rod withstands on the leftover bits and pieces of push rod by sensitive switch.

Described chip comprise chip pin 1., chip pin 2., 1. described chip pin is connected with small plug by low-melting alloy scolding tin, 2. described chip pin is connected with release sheet by low-melting alloy scolding tin.

Described release sheet is connected with big plug by the sheet that is flexible coupling, and described release sheet is placed on the boss.

The utility model has two states, and a kind of is the tripping mechanism connection status, and another kind is the tripping mechanism trip status, and the indicating window below is to go up pin when the tripping mechanism connection status, and the indicating window below is a lock pin when the tripping mechanism trip status.

Owing to adopt technique scheme, the utlity model has following beneficial effect:

1, safe and reliable, simple in structure;

2, strong shock resistance, dropout distance are greatly.

Description of drawings

Fig. 1 is the single unit system figure of the utility model surge protector.

Fig. 2 is the tripping mechanism connection status schematic diagram of the utility model surge protector.

Fig. 3 is the tripping mechanism trip status schematic diagram of the utility model surge protector.

Fig. 4 is the pusher structure schematic diagram of the utility model surge protector.

Fig. 5 is the chip structure schematic diagram of the utility model surge protector.

Mark the following drawings mark thereon in conjunction with the accompanying drawings:

The 1-lock pin; The 2-small plug; The 3-chip pin 1.; The 4-release sheet; The 5-chip pin 2.; The 6-push rod; The 7-sheet that is flexible coupling; The big plug of 8-; The 9-spring; The 10-chute; The last pin of 11-; The 12-boss; 13-gets a foothold; The 14-indicating window; The 15-sensitive switch; The 16-push rod; The 17-base; The 18-case; The 19-projection; The 20-spring stack.

Embodiment

Shown in Figure 3 as Fig. 1 Fig. 2, a kind of surge protector, comprise base 17, case 18, tripping mechanism, push rod 16, sensitive switch 15 compositions, tripping mechanism comprises: big plug 8, small plug 2, lock pin 1, push rod 6, release sheet 4, the sheet 7 that is flexible coupling, indicating window 14, chip are formed; Tripping mechanism is installed in case 18 inside, and case 18 is provided with indicating window 14; Big plug 8 and small plug 2 assign into respectively on the connecting plate on the base 17, and push rod 16 withstands on the leftover bits and pieces 13 of push rod 6 by sensitive switch 15; Release sheet 4 is connected with big plug 8 by the sheet 7 that is flexible coupling, and release sheet 4 is contained on the boss 12.

As Fig. 4, Fig. 5, shown in push rod 6 comprise: go up pin 11, get a foothold 13, boss 12, chute 10, spring stack 20, there is projection 19 described chute 10 inside, and described projection 19 is installed on the case 18; Chip comprise chip pin 1. 3, chip pin 2. 5,1. described chip pin 3 is connected with small plug 2 by low-temperature alloy scolding tin, 2. described chip pin 5 is connected with release sheet 4 by low-temperature alloy scolding tin.As shown in Figure 2, be the tripping mechanism connection status figure of the utility model surge protector, this moment big plug 8 with small plug 2 between be connected by parts; the power supply energising is normal; last pin 11 is green, looks down from indicating window 14 and can see upward pin 11, and show normal this moment.

As shown in Figure 3; tripping mechanism trip status figure for the utility model surge protector; release sheet 4 and the chip pin 2. weldering of 5 usefulness low-melting alloys are lived; when surge protector breaks down; during the chip persistent fever; chip pin on the chip 2. 5 transmission heats makes the low-melting alloy fusing; push rod 6 is under the effect of the elastic force of spring 9; move right rapidly, drive release sheet 4 and sheet 7 motions that are flexible coupling, with chip pin 2. 5 with release sheet 4 between be connected fully and cut off; this moment, the last pin 11 of push rod 6 upper ends was removed under 14 mouthfuls of the indicating windows of case 18; indicating window 14 looks down and can only see lock pin 1, and lock pin 1 is red, the display device fault., under the effect of sensitive switch 15 elastic force, move upward simultaneously because push rod 16 has lost the stopping of leftover bits and pieces 13 of push rod 6 belows.

It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the claim scope of the present utility model.

Claims

1. surge protector comprises base, case, tripping mechanism, push rod, sensitive switch, it is characterized in that: described tripping mechanism is installed in case inside, and described case is provided with indicating window, and described push rod withstands on the leftover bits and pieces of push rod by sensitive switch.

2. surge protector according to claim 1; it is characterized in that: described tripping mechanism comprises big plug, small plug, lock pin, push rod, release sheet, the sheet that is flexible coupling, indicating window, chip; described big plug and small plug assign into respectively on the connecting plate on the base plate; described release sheet is connected with big plug by the sheet that is flexible coupling, and described release sheet is placed on the boss.

3. surge protector according to claim 2 is characterized in that: described push rod comprises: go up pin, leftover bits and pieces, boss, chute, spring stack, there is projection described chute inside, and described projection is installed on the case.

4. surge protector according to claim 2; it is characterized in that: described chip comprise chip pin 1., chip pin 2.; 1. described chip pin is connected with small plug by low-melting alloy scolding tin, and 2. described chip pin is connected with release sheet by low-melting alloy scolding tin.