CN202474809U - State indicating mechanism of surge protection device and surge protection device - Google Patents
State indicating mechanism of surge protection device and surge protection device Download PDFInfo
- Publication number
- CN202474809U CN202474809U CN2012200961325U CN201220096132U CN202474809U CN 202474809 U CN202474809 U CN 202474809U CN 2012200961325 U CN2012200961325 U CN 2012200961325U CN 201220096132 U CN201220096132 U CN 201220096132U CN 202474809 U CN202474809 U CN 202474809U
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- Prior art keywords
- state
- indicating mechanism
- triggering
- surge protector
- switch
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Abstract
The utility model discloses a state indicating mechanism of a surge protection device and the surge protection device. The surge protection device comprises a shell, metal oxide varistors and a tripping mechanism, wherein the metal oxide varistors and the tripping mechanism are accommodated in the shell; the metal oxide varistors are used for corresponding phases; and the tripping mechanism is used for tripping the metal oxide varistor corresponding to the fault phase out of an external line under the fault condition. The state indicating mechanism comprises a trigger part and a light emitting indicating part, wherein the trigger part is correlated with the tripping mechanism to actuate; the light emitting indicating part responds to the action of the trigger part, which is actuated due to the tripping of the tripping mechanism, to emit light with the specific color; and the light emitting indicating part is arranged on the shell. After the surge protection device disclosed by the utility model is utilized, the tripping state of the surge protection device can be reliably indicated.
Description
Technical field
The utility model relates to a kind of surge protector, and relates in particular to the indicating mechanism of surge protector.
Background technology
Surge protector generally is used for the electric wiring of family, office space, industrial site etc., is used for preventing the damage of the instantaneous overvoltage of circuit to electric equipment.When in electric loop or the communication line because extraneous interference is when producing peak current or voltage suddenly, surge protector can conducting shunting in the extremely short time, thereby avoids the infringement of surge to other equipment in the loop.
In the most frequently used surge protector, comprise an element that is called metal oxide varistor (MOV), be used for shifting unnecessary voltage.This metal oxide varistor has very large resistance under normal operation, thus, be in off state basically; And the voltage in circuit is when surpassing predetermined value; For example under situation such as appearance thunderbolt, its resistance sharply descends, and is in intimate conducting state thus; Conduct a large amount of electric currents, eliminate unnecessary voltage.
But; After long-time the use, metal oxide varistor can wear out and can generate heat thus, is damaged owing to overheated in order to prevent metal oxide varistor; And in order to prevent owing to the temperature rising causes disasters such as fire; Usually in surge protector, be provided with tripping mechanism, this tripping mechanism is connected with metal oxide varistor, when temperature raises, metal oxide varistor and circuit are thrown off.
And the current state in order to monitor and to indicate surge protector is provided with indicating mechanism, and this indicating mechanism is associated with tripping mechanism, with the current state of local and long-range indication surge protector.
In patent of before the applicant, applying for and the product that can buy in the market, adopt two cover mechanisms to realize local and long-range indication usually.That is, in surge protector, be provided with a fork, the swing that this fork can be associated with tripping mechanism; Thus, when tripping mechanism was threaded off, the swing of fork triggered a sensitive switch; Thus, send the signal of the tripping mechanism dropout of an expression surge protector to remote monitoring mechanism.In order to realize local indication, on the housing of surge protector, offer window, and be provided with an indicating piece in the window inboard, this indicating piece can move along with the dropout of tripping mechanism.Be provided with the zone that scribbles two kinds of colors on the indicating piece, for example, red and green; Make when the surge protector operate as normal, that is, and when tripping mechanism is not threaded off; Green area on the indicating piece can see through the window on the surge protector housing and observed by the outside, and when surge protector broke down, tripping mechanism was threaded off; And then drive indicating piece and move, make red area on the indicating piece to see through the window on the surge protector housing and observed by the outside.
But this indicating mechanism that adopts at present exists some to need improved place.As, because normally being installed in the power distribution cabinet, uses surge protector, and its environment for use is darker, and therefore, the indication color that is difficult to observe window on the surge protector housing changes.In addition, because local indication and long-range indication need two cover mechanisms, bring baroque problem usually.
The utility model content
Therefore, there is a kind of state indicating mechanism that improves surge protector, the demand of especially local state indicating mechanism.The utility model is to make in view of this purpose, and therefore, the utility model provides a kind of state indicating mechanism of surge protector, and this state indicating mechanism can indicate the state of surge protector reliably and have simple mechanism.
An aspect according to the utility model; A kind of state indicating mechanism of surge protector is provided; This surge protector comprises housing and is contained in the interior metal oxide varistor that is used for each phase of said housing and under failure condition, will has that metal oxide varistor mutually of fault and the tripping mechanism of outside line disengagement; Said state indicating mechanism comprises with the triggering part of said tripping mechanism associated action and in response to said triggering part moves because of the dropout of said tripping mechanism; Send the luminous indication piece of light, and said luminous indication piece is arranged on the said housing.
Thus, when surge protector was threaded off, luminous indication piece sent light, and thus, even surge protector is installed in the rather dark power distribution cabinet, operating personnel also can discern the state of surge protector reliably.
Said tripping mechanism comprises the release lever that is arranged on pivotly on the said housing, and preferably, said release lever is processed by elastic conducting material, with when threading off, relies on the elasticity of self to pivot.
Said triggering part is for be arranged on the grid-like element on the said housing pivotly; This grid-like element comprises a plurality of openings; The release lever that is used for each phase is inserted into corresponding this opening respectively, makes the dropout of release lever of arbitrary phase will cause said triggering part action.
Preferably, also comprise biased element,,, make that this triggering part leans against on the said release lever with the said triggering part of bias voltage like torsionspring.
Preferably, also comprise local trigger switch, this trigger switch is connected with said luminous indication piece, and in response to the action of said triggering part, said trigger switch is triggered and makes said luminous indication piece send light.And said local trigger switch can be sensitive switch.
Preferably, said triggering part also comprises the triggering tongue, and when said tripping mechanism was not threaded off, under the effect of said biased element, said triggering tongue was depressed the trigger button of said sensitive switch.
Preferably, also comprise the Remote triggering switch, in response to the action of said triggering part, said Remote triggering switch sends the signal of the state of the said surge protector of expression to remote equipment.
Said Remote triggering switch also can be a sensitive switch; And arrange face-to-face with said local trigger switch; When said tripping mechanism is not threaded off; Under the effect of said biased element, said triggering tongue places between the trigger button of said Remote triggering switch and local trigger switch, and depresses the trigger button of the two simultaneously.
Thus, realized local state indication and remote status indication simultaneously, simplified the structure, and reduced cost through a cover mechanism.
Preferably, said luminous indication piece is a light-emitting diode, and when said tripping mechanism was threaded off, the said light that sends was red light.In addition, when said tripping mechanism was not threaded off and therefore said triggering part does not move, said light-emitting diode sent green light.
According to the utility model on the other hand, a kind of surge protector is provided, this surge protector comprises above-mentioned state indicating mechanism.
Thus, can indicate the operating state of surge protector reliably, even surge protector is installed in the rather dark power distribution cabinet.
Description of drawings
Above-mentioned and other purpose of the utility model, characteristic, beneficial effect and industry and technical importance will be through with reference to the accompanying drawings to becoming clearer in the utility model detailed description of the preferred embodiment, among the figure:
Fig. 1 is the sketch that illustrates according to the surge protector of the utility model, and wherein surge protector is in normal operating conditions;
Fig. 2 is another sketch that illustrates according to the surge protector of the utility model, and wherein surge protector is in trip status;
Fig. 3 is the sketch that illustrates according to the indicating mechanism of the surge protector of the utility model; And
Fig. 4 is the sketch that the triggering part of the indicating mechanism that is used for Fig. 3 is shown.
Embodiment
Below, with reference to the preferred implementation of accompanying drawing detailed description the utility model.Wherein, Fig. 1 is the sketch that illustrates according to the surge protector of the utility model, and wherein surge protector is in normal operating conditions; Fig. 2 is another sketch that illustrates according to the surge protector of the utility model, and wherein surge protector is in trip status; Fig. 3 is the sketch that illustrates according to the indicating mechanism of the surge protector of the utility model; And Fig. 4 is the sketch that the triggering part of the indicating mechanism that is used for Fig. 3 is shown.
As illustrated in fig. 1 and 2, surge protector 100 comprises housing 110 (dotted line is represented among the figure); Be contained in the metal oxide varistor (being designated hereinafter simply as MOV) 120 in the housing 110; First and second terminals 131 and 132 of surge protector are to be connected with outside protected line.Wherein, it is to be noted, in Fig. 1 and 2; Only show the MOV that is used for a phase; But in fact, can comprise the MOV that is used for each phase of circuit, and also can be equipped with a MOV mutually for each; Perhaps under the bigger situation of power, also can be equipped with two or more MOV that are in parallel mutually for each.First electrode 121 of MOV is connected with the first terminal 131 of surge protector, and second electrode 122 of MOV is connected with second terminal 132 of surge protector through tripping mechanism 140.
Specifically, as illustrated in fig. 1 and 2, this tripping mechanism 140 can be made up of self rubber-like release lever; This release lever is processed like spring steel, copper etc. for example by elastic conducting material, and an end of this release lever 140 is electrically connected and is fixed on this position with second terminal 132; In addition, the other end of this release lever 140 is through second electrode, 122 welding of solder and MOV 121, and this moment; Release lever 140 is in the state of energizing, that is, release lever 140 is in by the elastic deflection state.When the temperature of MOV120 surpasses threshold temperature; The solder fusing; Make the disengagement that is welded to connect between the release lever 140 and second electrode 122; Release lever 140 clockwise direction in self flexible effect lower edge figure flicks (referring to Fig. 2), and being connected between second electrode 122 that breaks off MOV 120 thus and second terminal 132 avoids MOV to be damaged because of overheated thus.
According to the utility model, be provided with indicating mechanism, so that at the state of this locality indication tripping mechanism, and can be simultaneously the state of tripping mechanism be sent to remote equipment.
Shown in Fig. 1-4, indicating mechanism 150 comprises triggering part 151.As shown in Figure 4, triggering part 151 is lattice-shaped, comprises a plurality of openings 152 (among the figure being four), and the release lever 142 that is used for each phase can pass these openings 152 respectively.This triggering part 151 is arranged on the appropriate position of the housing of surge protector pivotly, and biased device, like bias voltage on the counter clockwise direction of torsionspring (not shown) in Fig. 3, makes that triggering part 151 leans against on the release lever 142.
In addition; As shown in Figure 3, indicating mechanism 150 also comprises two the sensitive switch 153A and the 153B that arrange face-to-face, triggers to be provided with highlightedly on the part 151 and triggers tongue 154; Under surge protector normal operating conditions shown in Figure 1; Under the effect of the biasing force of torsionspring, this triggering tongue 154 is inserted between the trigger button of two sensitive switch 153A and 153B, thus the trigger button of two sensitive switches is depressed.
As shown in Figure 2, when surge protector is threaded off, as stated; Solder fusing between second electrode of release lever 140 and MOV, release lever 140 flicks along clockwise direction among the figure thus, flicks in the process at release lever 140; Release lever 140 drives triggering part 151 and overcomes the biasing force of torsionspring and rotation along clockwise direction; Thus, the triggering tongue 154 that triggers part 151 is pulled out between two sensitive switches of facing mutually, two sensitive switches are triggered simultaneously.
As illustrated in fig. 1 and 2, these two sensitive switches can comprise the long-range sensitive switch 153A that is connected with remote signal terminal 160 and the local sensitive switch 153B that is connected with LED 170 as local indicator light.When two sensitive switches are triggered, long-range sensitive switch 153A will send the signal that the expression surge protector is threaded off to remote equipment through remote signal terminal 160; Simultaneously, the triggering of local sensitive switch 153B will cause the glow color of LED 170 to become redness from green, provide the indication of trip status thus.
According to the utility model, utilize a cover indicating mechanism, can realize local indication and long-range indication simultaneously.
In addition, according to the utility model, realize local indication owing to utilize LED to substitute mechanical cue mark, even in the power distribution cabinet of dark, also can observe the state of surge protector reliably.
In addition, according to the utility model, an independent triggering part of indicating mechanism matches with being used for heterogeneous a plurality of release levers simultaneously, thus, when causing threading off arbitrary breaking down mutually, can trigger indicating mechanism reliably and make corresponding indication.
Although the preferred implementation with reference to the utility model is described above, the utility model is not limited thereto.
For example, substitute LED, can adopt other illuminating sources, as, the bulb of respective color is used as local luminous indication, so that a kind of bulb of color is luminous when operate as normal, and under trip status, a kind of bulb of color is luminous in addition; Perhaps, can be not luminous in normal operation, when still threading off breaking down, bulb or LED etc. are luminous.
As stated, in a preferred embodiment, adopted the sensitive switch of contact, so that match with the triggering part.But, also can adopt contactless switch; In above-mentioned preferred implementation; Two sensitive switches are arranged with face-to-face mode; But, also can be arranged side by side, perhaps also other modes are arranged; As long as position and form according to trigger switch are correspondingly adjusted the position of triggering tongue or increased the quantity that triggers tongue, these all should fall in the protection range of the utility model.
In addition, in above-mentioned preferred implementation, tripping mechanism is made up of self rubber-like dropout part, and still, obviously, the utility model is not limited thereto, but the utility model can be applied to any tripping mechanism and the use that matches with it.
Therefore; The utility model also is not intended to and is confined to above-mentioned specifically described execution mode; And being based on this instruction, those skilled in the art can make various improvement, substitute or modification, and these improve, substitute or modification all should fall in the protection range of the utility model.
Claims (14)
1. the state indicating mechanism of a surge protector; This surge protector comprises housing and is contained in the interior metal oxide varistor that is used for each phase of said housing and under failure condition, will has that metal oxide varistor mutually of fault and the tripping mechanism of outside line disengagement; It is characterized in that; Said state indicating mechanism comprises with the triggering part of said tripping mechanism associated action and in response to said triggering part moves because of the dropout of said tripping mechanism; Send the luminous indication piece of light, and said luminous indication piece is arranged on the said housing.
2. state as claimed in claim 1 indicating mechanism is characterized in that said tripping mechanism comprises the release lever that is arranged on pivotly on the said housing.
3. state as claimed in claim 2 indicating mechanism is characterized in that said release lever is processed by elastic conducting material, with when threading off, relies on the elasticity of self to pivot.
4. state as claimed in claim 3 indicating mechanism; It is characterized in that; Said triggering part is for be arranged on the grid-like element on the said housing pivotly; This grid-like element comprises a plurality of openings, and the release lever that is used for each phase is inserted into corresponding this opening respectively, makes the dropout of release lever of arbitrary phase will cause said triggering part action.
5. state as claimed in claim 4 indicating mechanism is characterized in that, also comprises biased element, with the said triggering part of bias voltage, makes that this triggering part leans against on the said release lever.
6. state as claimed in claim 5 indicating mechanism; It is characterized in that, also comprise local trigger switch, this trigger switch is connected with said luminous indication piece; And in response to the action of said triggering part, said trigger switch is triggered and makes that said luminous indication piece is luminous.
7. state as claimed in claim 6 indicating mechanism is characterized in that said local trigger switch is a sensitive switch.
8. state as claimed in claim 7 indicating mechanism is characterized in that said triggering part also comprises the triggering tongue, and when said tripping mechanism was not threaded off, under the effect of said biased element, said triggering tongue was depressed the trigger button of said sensitive switch.
9. like each described state indicating mechanism in the claim 1 to 8, it is characterized in that, also comprise the Remote triggering switch, in response to the action of said triggering part, said Remote triggering switch sends the signal of the state of the said surge protector of expression to remote equipment.
10. state as claimed in claim 9 indicating mechanism; It is characterized in that said Remote triggering switch is a sensitive switch, and arrange face-to-face with said local trigger switch; When said tripping mechanism is not threaded off; Under the effect of said biased element, said triggering tongue places between the trigger button of said Remote triggering switch and local trigger switch, and depresses the trigger button of the two simultaneously.
11., it is characterized in that said luminous indication piece is a light-emitting diode like each described state indicating mechanism in the claim 1 to 7.
12. state as claimed in claim 11 indicating mechanism is characterized in that the said light that sends is red light.
13. state as claimed in claim 12 indicating mechanism is characterized in that, when said tripping mechanism was not threaded off and therefore said triggering part does not move, said light-emitting diode sent green light.
14. a surge protector is characterized in that, said surge protector comprises like each described state indicating mechanism in the claim 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200961325U CN202474809U (en) | 2012-03-14 | 2012-03-14 | State indicating mechanism of surge protection device and surge protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200961325U CN202474809U (en) | 2012-03-14 | 2012-03-14 | State indicating mechanism of surge protection device and surge protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202474809U true CN202474809U (en) | 2012-10-03 |
Family
ID=46922937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200961325U Expired - Lifetime CN202474809U (en) | 2012-03-14 | 2012-03-14 | State indicating mechanism of surge protection device and surge protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202474809U (en) |
-
2012
- 2012-03-14 CN CN2012200961325U patent/CN202474809U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |