CN102543613A - Small fuse with fusing indication function - Google Patents
Small fuse with fusing indication function Download PDFInfo
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- CN102543613A CN102543613A CN2012100392935A CN201210039293A CN102543613A CN 102543613 A CN102543613 A CN 102543613A CN 2012100392935 A CN2012100392935 A CN 2012100392935A CN 201210039293 A CN201210039293 A CN 201210039293A CN 102543613 A CN102543613 A CN 102543613A
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- fuse
- fusing
- protective tube
- pair
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Abstract
The invention relates to a small fuse with a fusing indication function. The small fuse comprises a fuse unit and a fusing indication unit, wherein a main fuse wire and the fusing indication unit are arranged in the fuse unit. Because the fusing indication unit is arranged in the fuse unit, when the main fuse wire in the fuse unit is fused, the fusing indication unit subsequently works and sends a fusing indication signal, and an operator masters the fusing state of the main fuse wire in the fuse unit according to the fusing indication signal. The fusing indication signal which is sent by the fusing indication unit is a signal which can be perceived visually and tactually by the operator. The fusing indication unit sends the fusing indication signal in a mechanical movement mode.
Description
Technical field
The present invention relates to a kind of protective tube, be meant a kind of small-sized protective tube especially with fusing deixis.
Background technology
As everyone knows; Increasingly can promote people's quality of the life along with the lifting of social production force level is present, promote work the very general life that has entered into people of automation electric equipment of life efficient of people; With regard to the automation electric equipment of present appearance, often be unable to do without the driving of electric power; Be unlikely to integral body and all burnt out whole electronic control part occurring under the situation of short circuit for fear of electric equipment in practice by electric current; Relevant circuit protection device all is set in electric equipment now, and use now the most extensively, the cheapest, the best circuit protection device of protection effect of cost has been exactly various protective tubes.
Protective tube also is called as fuse, and it is a kind of being installed in the circuit, guarantees the electric elements of circuit safety operation.The effect of protective tube mainly is the effect of playing overload protection; When circuit breaks down or be unusual, be accompanied by electric current and constantly raise, and the electric current that raises is when might damage some important devices or the valuable device in the circuit; Correctly settled protective tube in the ifs circuit; So, protective tube will reach the effect of cutting off the current protecting circuit safe operation thereby carry out oneself's fusing when current anomaly is elevated to certain degree.
In practical application, have in the now general electronic circuit of overload protective function preferably just because of protective tube and all protective tube can be set; Present protective tube generally all is made up of body, cap and fuse; The cap lid is located at the body two ends; Fuse is in body and be connected between the cap at body two ends, and fuse has big electric current through melting disconnected characteristic voluntarily, so when the electric current in the circuit greater than rated current the time; Fuse is heated and melts disconnectedly voluntarily, cuts off the purpose that whole circuit reaches overload protection thereby reach.
The protective tube of selling on the market now is because function need; Its body generally all is to be processed by lighttight explosion-proof pottery or other insulating material; So after the inner fuse of body is fused; The user can not directly find through vision; And the fuse that all need just can find protective tube by some professional measuring instruments is by fusing and change, and this detection is found mode not only step is loaded down with trivial details also must have the professional to use professional instrument to cooperate just simultaneously can to carry out.
Though it is to be processed by light transmissive material that the body of some protective tubes is also arranged, because its overall dimensions is less, the eyes through the user go to find that the blown state of fuse in the body also is to be difficult to realize for small-sized protective tube.
As stated, do not design any fusing indicating structure in especially small-sized its structure of protective tube of present protective tube, the user is difficult to differentiate the blown state of protective tube in concrete the use like this, and this is the major defect for conventional art.
Summary of the invention
The present invention provides a kind of small-sized protective tube with fusing deixis; It has the fusing indicating structure; In the time of the fuse failure of protective tube, the action of fusing indicating structure is also sent the fusing index signal, makes operating personnel judge whether this protective tube is serviceable condition according to this index signal that fuses is easy to do; Anyone need just can not differentiate the fine or not state of this protective tube by any instrument, and this is exactly to be main purpose of the present invention.
The technical scheme that the present invention adopted is: a kind of small-sized protective tube with fusing deixis; Comprise protective tube unit and fusing indicating member; Be provided with main fuse in this protective tube unit, this fusing indicating member is arranged in this protective tube unit, when this main fuse of this protective tube unit fuses; This fusing indicating member action is also sent the fusing index signal, makes operating personnel grasp the blown state of this main fuse in this protective tube unit according to this fusing index signal.
This fusing indicating member action this fusing index signal of sending is the signal that operating personnel can perceive through vision and sense of touch, and this fusing indicating member sends this fusing index signal through the mode of mechanical movement.
This protective tube unit comprises body and end cap, and this end cap cover is located at this body two ends, centers on formation one inner chamber by this body and this end cap, and this main fuse is arranged in this inner chamber, and these main fuse two ends are connected electrically in respectively on this end cap.
This fusing indicating member comprises ejection indicating section and elastic force supply part; This elastic force is supplied with part and is acted on this ejection indicating section; Have between this ejection indicating section and this protective tube unit and hide and the ejection two states; When being in hidden state between this ejection indicating section and this protective tube unit, this main fuse is in non-blown state, and this ejection indicating section is hidden in this protective tube unit this moment; When being in the ejection state between this ejection indicating section and this protective tube unit; This main fuse is fused, and this moment, thereby this elastic force is supplied with part and this ejections indicating section is applied the ejection active force this ejection indicating section ejected send this fusing index signal from this protective tube unit.
Be filled with the quartz sand powder in this body.
This fusing indicating member also comprises secondary fuse, and these pair fuse two ends are connected electrically on this end cap of this protective tube unit, and this main fuse of this pair fuse and this protective tube unit is connected in parallel between this end cap, and the resistance of this pair fuse is greater than the resistance of this main fuse.
This ejection indicating section is fixedly connected on this pair fuse one end, and this elastic force is supplied with part and acted on this ejection indicating section, when being in hidden state between this ejection indicating section and this protective tube unit; This main fuse is in non-blown state, and this pair fuse should eject the indicating section restriction and be hidden in this protective tube unit, this moment; This elastic force is supplied with part and is had elastic potential energy, and this pair fuse and this main fuse are connected in parallel, because resistance that should the pair fuse is greater than the resistance of this main fuse; So should the pair fuse and this main fuse when being connected in parallel the normal current major part flow through this main fuse; Have only the normal current of fraction to flow through this pair fuse, when normal current became fault current, this main fuse was fused; This pair fuse is connected between this end cap; So after this main fuse fusing, fault current all flows through this pair fuse, and this pair fuse is also fused; This moment; This pair fuse is eliminated the restriction that this ejects indicating section, and the elastic potential energy that this elastic force is supplied with part is released, thereby this elastic force is supplied with part and this ejections indicating section is applied the ejection active force this ejection indicating section ejected send this fusing index signal from this protective tube unit.
The resistance of this pair fuse is more than hundred times of this main fuse resistance.
The distance that is ejected from this protective tube unit by this ejection indicating section after fusing when this main fuse is 1 millimeter to 5 millimeters.
This ejection indicating section is a striker, and this striker has syringe needle, after this striker is ejected, lets operating personnel through pointing sharp this fusing index signal of feeling by this syringe needle.
Also be provided with vision enlarged and displayed structure on this striker, through this vision enlarged and displayed structure let operating personnel through eyes sharp observe this fusing index signal.
This vision enlarged and displayed structure is the indication spheroid that has color.
This elastic force supply unit is divided into spring; This spring housing is located on this striker, and when being in hidden state between this ejection indicating section and this protective tube unit, this spring is compressed by the restriction of this pair fuse; And after this main fuse was fused, this spring ejected this striker.
Be folded with the fuse retainer ring between this body and this end cap, with this main fuse and should be located between this fuse retainer ring and this end cap by the pair fuse clip, make this main fuse and should be connected in parallel between this end cap by the pair fuse through this fuse retainer ring.
This fuse retainer ring comprises snap ring, interior concave volume and through hole, and wherein, concave volume and this snap ring are connected to form an integral body in this; This through hole is arranged in this interior concave volume; Should have cavity by interior concave volume, and convex with the evagination body on this end cap, this outer convex body is plugged in this interior concave volume to have in the cavity; Concave volume is around forming a clamping part by this end cap, this outer convex body, this snap ring and in being somebody's turn to do, and the two ends of this main fuse are folded in this clamping part.
One end of this pair fuse is folded in this clamping part; An other end of this pair fuse is connected with this fusing indicating member; This end cap that is positioned at this fusing indicating member one end is provided with hiding chamber, and when this main fuse was in non-blown state, this fusing indicating member was hidden in this hiding chamber; When the fusing of this main fuse should the pair fuse also by fusing after, this fusing indicating member comes out from this hiding chamber.
Beneficial effect of the present invention is: the present invention includes protective tube unit and fusing indicating member as stated; Be provided with fuse in this protective tube unit; This fusing indicating member is arranged in this protective tube unit, and in the time of this fuse failure of this protective tube unit, the fusing index signal is also sent in this fusing indicating member action; Make operating personnel can grasp the blown state of this fuse in this protective tube unit, instantaneously changing this small-sized protective tube of the present invention according to this index signal that fuses.
Description of drawings
Fig. 1 is a cross-sectional view of the present invention.
Fig. 2 is in the cross-sectional view of non-blown state for fuse of the present invention.
Fig. 3 is that fuse of the present invention is by the cross-sectional view after fusing.
Fig. 4 is the circuit catenation principle figure of secondary fuse of the present invention and fuse.
Fig. 5 is passed through the sketch map of vision and tactilely-perceptible fusing index signal by the back operating personnel that fused for fuse of the present invention.
Fig. 6 is in the cross-sectional view of non-blown state for the fuse of preferred embodiment of the present invention.
Fig. 7 for the fuse of preferred embodiment of the present invention by the cross-sectional view after fusing.
Embodiment
Shown in Fig. 1 to 5, a kind of small-sized protective tube with fusing deixis, it comprises protective tube unit 10 and fusing indicating member 20.
Technical scheme of the present invention is particularly useful for small-sized protective tube, and small-sized protective tube of the present invention generally is widely used in all household electrical appliance, power supply, and the field that needs the installation insurance pipe.
The size of the protective tube unit of this band fusing indication is not limited.
Be provided with main fuse 11 in this protective tube unit 10 as shown in Figure 1.
This fusing indicating member 20 is arranged in this protective tube unit 10; When this main fuse 11 of this protective tube unit 10 fuses; These fusing indicating member 20 actions are also sent the fusing index signal; Make operating personnel can grasp the blown state of this main fuse 11 in this protective tube unit 10, instantaneously changing this small-sized protective tube of the present invention according to this index signal that fuses.
This fusing indicating member 20 action these fusing index signals of sending as shown in Figure 5 are signals that operating personnel can arrive through vision or tactilely-perceptible.
This fusing indicating member 20 sends this fusing index signal through the mode of mechanical movement in practical implementation.
This protective tube unit 10 comprises body 12 and end cap 13 shown in Fig. 1 to 3, and these end cap 13 lids are located at this body 12 two ends.
Center on formation one inner chamber 14 by this body 12 and this end cap 13.
This main fuse 11 is arranged in this inner chamber 14.
These main fuse 11 two ends are connected electrically in respectively on this end cap 13.
This protective tube unit 10 is connected in series in the circuit in concrete the use; When circuit breaks down or is unusual; Be accompanied by the rising of electric current; When electric current raises above these main fuse 11 base load ratings, thereby this main fuse 11 is cut off the electric current in circuit by fusing, and then reaches the effect of protective circuit.
In practical implementation, can also be filled with quartz sand powder 15 in this body 12.
This fusing indicating member 20 comprises ejection indicating section 21 and elastic force supply part 22, and this elastic force is supplied with part 22 and acted on this ejection indicating section 21.
Have between this ejection indicating section 21 and this protective tube unit 10 and hide and the ejection two states.
When being in hidden state between this ejection indicating section 21 and this protective tube unit 10; This main fuse 11 is in non-blown state; This ejection indicating section 21 is hidden in this protective tube unit 10 this moment, and the present invention in this time is whole consistent with traditional protective tube outward appearance.
When being in the ejection state between this ejection indicating section 21 and this protective tube unit 10; This main fuse 11 is fused; This moment; Thereby this elastic force is supplied with 22 pairs of this ejections indicating sections 21 of part and is applied the ejection active force and this ejection indicating section 21 is ejected send this fusing index signal from this protective tube unit 10, and this time, operating personnel can perceive this signal through vision (such as eyes) or sense of touch (such as pointing).
In practical implementation, this fusing indicating member 20 also comprises secondary fuse 23, and these pair fuse 23 two ends are connected electrically on this end cap 13 of this protective tube unit 10.
As shown in Figure 4 should pair fuse 23 and this main fuse 11 of this protective tube unit 10 be connected in parallel between this end cap 13.
The resistance of this pair fuse 23 is greater than the resistance of this main fuse 11.
This ejection indicating section 21 is fixedly connected on this pair fuse 23 1 ends, and this elastic force is supplied with part 22 and acted on this ejection indicating section 21.
When being in hidden state between this ejection indicating section 21 and this protective tube unit 10; This main fuse 11 is in non-blown state; This pair fuse 23 should eject indicating section 21 restrictions and be hidden in this protective tube unit 10; This moment, this elastic force is supplied with part 22 and is had elastic potential energy, and this pair fuse 23 is connected in parallel with this main fuse 11.
Because resistance that should pair fuse 23 is greater than the resistance of this main fuse 11,, have only the normal current of fraction to flow through this pair fuse 23 so the normal current major part flows through this main fuse 11 when should pair fuse 23 being connected in parallel with this main fuse 11; When normal current becomes fault current; This main fuse 11 is fused, and this pair fuse 23 is connected between this end cap 13, so after these main fuse 11 fusing; Fault current all flows through this pair fuse 23, and this pair fuse 23 is also fused.
This moment; The 23 pairs of restrictions that should eject indicating section 21 of this pair fuse are eliminated; The elastic potential energy that this elastic force is supplied with part 22 is released, thereby this elastic force is supplied with 22 pairs of this ejection indicating sections 21 of part and applied the ejection active force and this ejection indicating section 21 is ejected send this fusing index signal from this protective tube unit 10.
In practical implementation, the resistance of this pair fuse 23 is more than hundreds of times of these main fuse 11 resistances.
In practical implementation, the distance that this ejection indicating section 21 ejects from this protective tube unit 10 after this main fuse 11 is by fusing is 1 millimeter to 5 millimeters.
This ejection indicating section 21 of the present invention is striker in practical implementation, and this striker has syringe needle, so after this striker is ejected, can let operating personnel through pointing sharp this fusing index signal of feeling by the structural design of this syringe needle.
Vision enlarged and displayed structure can also be set on this striker, through this vision enlarged and displayed structure can let operating personnel through eyes sharp observe this fusing index signal.
This vision enlarged and displayed structure can be for having the coating of color, and such as vivid red coatings, this vision enlarged and displayed structure also can be for having the indication spheroid of color.
It is spring in practical implementation that this elastic force of the present invention is supplied with part 22; This spring housing is located on this striker; When being in hidden state between this ejection indicating section 21 and this protective tube unit 10; This spring is compressed by the restriction of this pair fuse 23, and after this main fuse 11 was by fusing, this spring ejected this striker.
This elastic force supply with part 22 also can for shell fragment or other can be after this main fuse 11 be by fusing, the elastic force feedway that this striker is ejected.
Shown in Fig. 6 to 7, the small-sized protective tube that has the fusing deixis for the present invention is a kind of adopts a kind of preferred embodiment of main fuse, secondary fuse-wires structure, is folded with fuse retainer ring 30 between this body 12 and this end cap 13.
Through this fuse retainer ring 30 with this main fuse 11 and should be folded between this fuse retainer ring 30 and this end cap 13 by pair fuse 23.
Make this main fuse 11 and should be connected in parallel between this end cap 13 by pair fuse 23.
Through this fuse retainer ring 30 with this main fuse 11 and should be folded in the structural design between this fuse retainer ring 30 and this end cap 13 by pair fuse 23; Not only can safety and stability in practical implementation with this main fuse 11 and should be connected in parallel between this end cap 13 by pair fuse 23; In concrete production, can promote the production efficiency of producing small-sized protective tube of the present invention simultaneously, help producing in batches through its structural design mode.
This fuse retainer ring 30 comprises snap ring 31, interior concave volume 32 and through hole 33, and wherein, concave volume 32 is connected to form an integral body with this snap ring 31 in this, and this through hole 33 is arranged in this interior concave volume 32.
Should have cavity by interior concave volume 32.
Convex with evagination body 131 on this end cap 13, this outer convex body 131 is plugged in this interior concave volume 32 to have in the cavity.
By this end cap 13, this outer convex body 131, this snap ring 31 and should in concave volume 32 around forming a clamping part.
The two ends of this main fuse 11 are folded in this clamping part.
One end of this pair fuse 23 is folded in this clamping part, and an other end of this pair fuse 23 is connected with this fusing indicating member 20.
This end cap 13 that is positioned at these fusing indicating member 20 1 ends is provided with hides chamber 132, and when this main fuse was in non-blown state, this fusing indicating member 20 was hidden in this hiding chamber 132.
When the fusing of this main fuse should the pair fuse also by fusing after, this fusing indicating member 20 comes out from this hiding chamber 132.
In practical implementation, this body 12 is processed by ceramic material or other insulating material.
Claims (10)
- One kind have fusing deixis small-sized protective tube, it is characterized in that: comprise the protective tube unit and fusing indicating member, be provided with main fuse in this protective tube unit,This fusing indicating member is arranged in this protective tube unit; When this main fuse of this protective tube unit fuses; This fusing indicating member action is also sent the fusing index signal, makes operating personnel grasp the blown state of this main fuse in this protective tube unit according to this fusing index signalThis fusing indicating member action this fusing index signal of sending is the signal that operating personnel can perceive through vision and sense of touch, and this fusing indicating member sends this fusing index signal through the mode of mechanical movement,This protective tube unit comprises body and end cap, and this end cap cover is located at this body two ends, centers on formation one inner chamber by this body and this end cap, and this main fuse is arranged in this inner chamber, and these main fuse two ends are connected electrically in respectively on this end cap,This fusing indicating member comprises ejection indicating section and elastic force supply part; This elastic force is supplied with part and is acted on this ejection indicating section; Have between this ejection indicating section and this protective tube unit and hide and the ejection two states; When being in hidden state between this ejection indicating section and this protective tube unit, this main fuse is in non-blown state, and this ejection indicating section is hidden in this protective tube unit this moment; When being in the ejection state between this ejection indicating section and this protective tube unit; This main fuse is fused, and this moment, thereby this elastic force is supplied with part and this ejections indicating section is applied the ejection active force this ejection indicating section ejected send this fusing index signal from this protective tube unit.
- 2. a kind of small-sized protective tube with fusing deixis as claimed in claim 1 is characterized in that: be filled with the quartz sand powder in this body.
- 3. a kind of small-sized protective tube as claimed in claim 1 with fusing deixis; It is characterized in that: this fusing indicating member also comprises secondary fuse; These pair fuse two ends are connected electrically on this end cap of this protective tube unit; This main fuse of this pair fuse and this protective tube unit is connected in parallel between this end capThe resistance of this pair fuse is greater than the resistance of this main fuse,This ejection indicating section is fixedly connected on this pair fuse one end, and this elastic force is supplied with part and acted on this ejection indicating section, when being in hidden state between this ejection indicating section and this protective tube unit; This main fuse is in non-blown state, and this pair fuse should eject the indicating section restriction and be hidden in this protective tube unit, this moment; This elastic force is supplied with part and is had elastic potential energy, and this pair fuse and this main fuse are connected in parallel, because resistance that should the pair fuse is greater than the resistance of this main fuse; So should the pair fuse and this main fuse when being connected in parallel the normal current major part flow through this main fuse; Have only the normal current of fraction to flow through this pair fuse, when normal current became fault current, this main fuse was fused; This pair fuse is connected between this end cap; So after this main fuse fusing, fault current all flows through this pair fuse, and this pair fuse is also fused; This moment; This pair fuse is eliminated the restriction that this ejects indicating section, and the elastic potential energy that this elastic force is supplied with part is released, thereby this elastic force is supplied with part and this ejections indicating section is applied the ejection active force this ejection indicating section ejected send this fusing index signal from this protective tube unit.
- 4. a kind of small-sized protective tube with fusing deixis as claimed in claim 3 is characterized in that: the resistance of this pair fuse is more than hundred times of this main fuse resistance.
- 5. a kind of small-sized protective tube with fusing deixis as claimed in claim 4, it is characterized in that: the distance that is ejected from this protective tube unit by this ejection indicating section after fusing when this main fuse is 1 millimeter to 5 millimeters.
- 6. a kind of small-sized protective tube as claimed in claim 3 with fusing deixis; It is characterized in that: this ejection indicating section is a striker; This striker has syringe needle, after this striker is ejected, lets operating personnel through pointing sharp this fusing index signal of feeling by this syringe needle.
- 7. a kind of small-sized protective tube as claimed in claim 6 with fusing deixis; It is characterized in that: also be provided with vision enlarged and displayed structure on this striker, through this vision enlarged and displayed structure let operating personnel through eyes sharp observe this fusing index signal.
- 8. a kind of small-sized protective tube with fusing deixis as claimed in claim 7, it is characterized in that: this vision enlarged and displayed structure is the indication spheroid that has color.
- 9. a kind of small-sized protective tube as claimed in claim 8 with fusing deixis; It is characterized in that: this elastic force supply unit is divided into spring; This spring housing is located on this striker, and when being in hidden state between this ejection indicating section and this protective tube unit, this spring is compressed by the restriction of this pair fuse; And after this main fuse was fused, this spring ejected this striker.
- 10. like any described a kind of small-sized protective tube in the claim 3 to 9 with fusing deixis; It is characterized in that: be folded with the fuse retainer ring between this body and this end cap; Through this fuse retainer ring with this main fuse and should be located between this fuse retainer ring and this end cap by the pair fuse clip; Make this main fuse and should be connected in parallel between this end cap by the pair fuseThis fuse retainer ring comprises snap ring, interior concave volume and through hole, and wherein, concave volume and this snap ring are connected to form an integral body in this; This through hole is arranged in this interior concave volume, and concave volume has cavity in this, convexes with the evagination body on this end cap; This outer convex body is plugged in this interior concave volume to have in the cavity; Concave volume is around forming a clamping part by this end cap, this outer convex body, this snap ring and in being somebody's turn to do, and the two ends of this main fuse are folded in this clamping partOne end of this pair fuse is folded in this clamping part; An other end of this pair fuse is connected with this fusing indicating member; This end cap that is positioned at this fusing indicating member one end is provided with hiding chamber, and when this main fuse was in non-blown state, this fusing indicating member was hidden in this hiding chamber; When the fusing of this main fuse should the pair fuse also by fusing after, this fusing indicating member comes out from this hiding chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100392935A CN102543613A (en) | 2012-02-21 | 2012-02-21 | Small fuse with fusing indication function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100392935A CN102543613A (en) | 2012-02-21 | 2012-02-21 | Small fuse with fusing indication function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102543613A true CN102543613A (en) | 2012-07-04 |
Family
ID=46350216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100392935A Pending CN102543613A (en) | 2012-02-21 | 2012-02-21 | Small fuse with fusing indication function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102543613A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676134A (en) * | 2019-10-11 | 2020-01-10 | 国网青海省电力公司海南供电公司 | Fuse protector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04319223A (en) * | 1991-04-17 | 1992-11-10 | Mitsubishi Electric Corp | Fusing and fuse provided with degradation detection mechanism |
| CN2134713Y (en) * | 1992-10-10 | 1993-05-26 | 段德财 | Plug-type fuse having indicator |
| CN201435365Y (en) * | 2009-05-22 | 2010-03-31 | 乐清市曙光熔断器厂 | High-voltage current-limiting fuse cutout |
| US20100245025A1 (en) * | 2009-03-25 | 2010-09-30 | Littelfuse, Inc. | Solderless surface mount fuse |
| CN102136403A (en) * | 2010-12-08 | 2011-07-27 | 天津市翔晟远电力设备实业有限公司 | Fusion tube for detecting high-voltage line fault |
| CN202142485U (en) * | 2011-07-04 | 2012-02-08 | 东莞市贝特电子科技有限公司 | Plug-use fuse |
-
2012
- 2012-02-21 CN CN2012100392935A patent/CN102543613A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04319223A (en) * | 1991-04-17 | 1992-11-10 | Mitsubishi Electric Corp | Fusing and fuse provided with degradation detection mechanism |
| CN2134713Y (en) * | 1992-10-10 | 1993-05-26 | 段德财 | Plug-type fuse having indicator |
| US20100245025A1 (en) * | 2009-03-25 | 2010-09-30 | Littelfuse, Inc. | Solderless surface mount fuse |
| CN201435365Y (en) * | 2009-05-22 | 2010-03-31 | 乐清市曙光熔断器厂 | High-voltage current-limiting fuse cutout |
| CN102136403A (en) * | 2010-12-08 | 2011-07-27 | 天津市翔晟远电力设备实业有限公司 | Fusion tube for detecting high-voltage line fault |
| CN202142485U (en) * | 2011-07-04 | 2012-02-08 | 东莞市贝特电子科技有限公司 | Plug-use fuse |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676134A (en) * | 2019-10-11 | 2020-01-10 | 国网青海省电力公司海南供电公司 | Fuse protector |
| CN110676134B (en) * | 2019-10-11 | 2022-12-27 | 国网青海省电力公司海南供电公司 | Fuse protector |
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Application publication date: 20120704 |